Maricopa County Air Quality Department Phone: 602.506.6010 Email: AQmail@mail.maricopa.gov Maricopa.gov/AQ CleanAirMakeMore.com 2016 AIR MONITORING NETWORK PLAN Final Publication Date: June 29, 2017 Lead Author: Ceresa Stewart 1001 North Central Avenue | Suite 125 | Phoenix, Arizona 85004 ACKNOWLEDGEMENTS In 2016, the Maricopa County Air Quality Department’s Air Monitoring Division maintained 26 ambient air monitoring sites throughout Maricopa County. The division has nineteen team members including: one manager, one quality assurance officer, two technician supervisors, one engineer, one data analyst, one database assistant, and twelve technicians. The division would especially like to thank all of its personnel and the department’s atmospheric scientist for their excellent job in helping to maintain Maricopa County’s air monitoring program. They are: Ben Davis, Gary Ensminger, Robert Dyer, Reynaldo Santillano, John Neff, Ceresa Stewart, Nikki Peterson, Tom Shorb, Chris Hernandez, Steve Sample, Daniel Daniels, Robert Sawicki, Larry Seals, Alex Herrera, Freddie Alejandro, Tom Dubishar, David Dubiel, Jose Bravo, Andy Clifton and Ron Pope, respectfully. In addition, the department gratefully acknowledges the assistance of other agencies, which provided data and helpful comments to this review. These may include the Arizona Department of Environmental Quality, Pinal County Air Quality Control District, the Maricopa Association of Governments, and the Tribal air monitoring organizations adjacent to Maricopa County. Last, we would like to thank the United States Environmental Protection Agency’s Region 9 personnel for their guidance and support regarding our air monitoring program. The department respectfully submits this 2016 Air Monitoring Network Plan to Region 9 for review. 2016 Air Monitoring Network Plan (June 29, 2017) Page 2 of 171 Table of Contents ACKNOWLEDGEMENTS ......................................................................................................2 ABSTRACT ...............................................................................................................................6 INTRODUCTION TO THE AIR MONITORING NETWORK PLAN ..............................7 Overview of the Clean Air Act and Criteria Pollutants ........................................................................ 9 The National Ambient Air Quality Standards .....................................................................................10 The Air Quality Index..............................................................................................................................11 Information Regarding the Causes, Characteristics, and Compliance of Criteria Pollutants........14 AIR MONITORING STRATEGIES AND SURVEILLANCE SYSTEM DESIGN ............ 21 Overview of Air Monitoring Requirements and System Design ......................................................21 Daily Uses of Criteria Pollutant Data ....................................................................................................26 Overview of the Air Monitoring Sites ...................................................................................................26 2016 SUMMARY OF NETWORK RESULTS AND REQUIRED INFORMATION ......... 30 Determining Data Quality and Acceptability .......................................................................................30 Summary of 2016 Criteria Pollutant Data ............................................................................................32 2016 NAAQS Exceedances and Violation Summary .........................................................................52 2016 Ozone Exceedance and Violation Information .........................................................................52 2016 Particulate Matter Exceedances, Violations, and Exceptional Event Status..........................56 Summary of 2016 Network Modifications ...........................................................................................60 Proposed Network Modifications .........................................................................................................61 Information Regarding Maricopa County’s Supplementary Air Monitoring Programs ................62 Information Regarding Additional Air Monitoring within Maricopa County ................................64 REFERENCES ....................................................................................................................... 65 APPENDIX I – 2016 AIR MONITORING DATA BY SITE ................................................ 66 APPENDIX II - EPA-REQUIRED SITE METADATA ....................................................... 93 Required General Statement Regarding Changes to the PM2.5 Network .........................................94 Site Schematic Descriptions....................................................................................................................94 Precision and Bias Audits........................................................................................................................94 APPENDIX III - PUBLIC NOTICE AND COMMENT INFORMATION ..................... 156 2016 Public Notice Announcement ................................................................................................... 157 Public Meeting Attendance .................................................................................................................. 158 Public Comments Received ................................................................................................................. 159 Maricopa County’s Response to Public Comments ......................................................................... 161 APPENDIX IV – GLOSSARY .............................................................................................. 164 2016 Air Monitoring Network Plan (June 29, 2017) Page 3 of 171 List of Tables Table 1. National Ambient Air Quality Standards ......................................................................................10 Table 2. Basic SLAMS Air Monitoring Objectives .....................................................................................22 Table 3. Monitor Types...................................................................................................................................23 Table 4. Site Types ...........................................................................................................................................24 Table 5. Spatial Scales of Representativeness ..............................................................................................24 Table 6. Monitoring Site Identification Information ..................................................................................27 Table 7. Monitoring Site Locations ...............................................................................................................28 Table 8. 2016 Criteria Pollutant Data Completeness for SLAMS ............................................................30 Table 9. Approximate Amount of 2016 Data Produced ...........................................................................31 Table 10. 2016 8-hour CO Average Data Summary ...................................................................................34 Table 11. 2016 CO Data Required by EPA .................................................................................................34 Table 12. 2016 NO2 1-hour Data Summary ................................................................................................36 Table 13. 2016 NO2 Data Required by EPA ...............................................................................................36 Table 14. 2016 8-hour Average O3 Data Summary ....................................................................................38 Table 15. 2016 O3 Data Required by EPA...................................................................................................39 Table 16. 2016 Pb Data Summary .................................................................................................................41 Table 17. 2016 Pb Data Required by EPA ..................................................................................................41 Table 18. 2016 PM10 24-Hour Data Summary Including EE Data ..........................................................43 Table 19. 2016 PM10 Data Required by EPA...............................................................................................44 Table 20. 2016 PM2.5 24-Hour and Annual Averages .................................................................................46 Table 21. PM2.5 3-Year Annual Averages .....................................................................................................47 Table 22. PM2.5 3-Year 24-Hour Averages of the 98th Percentile .............................................................48 Table 23. 2016 PM2.5 Data Required by EPA ..............................................................................................49 Table 24. 2016 SO2 Data Summary ...............................................................................................................51 Table 25. 2016 SO2 Data Required by EPA ................................................................................................51 Table 26. 2016 NAAQS Exceedances and Violation Summary ...............................................................52 Table 27. 2016 PM10 24-hour NAAQS Exceedances .................................................................................56 Table 28. 2016 Violations of the PM10 24-Hour NAAQS Including EE Data ......................................57 Table 29. 2016 Violations of the PM10 NAAQS Excluding Data Flagged as an EE.............................58 Table 30. 2016 PM2.5 Exceedances ................................................................................................................59 2016 Air Monitoring Network Plan (June 29, 2017) Page 4 of 171 List of Figures Figure 1. 2016 Air Monitoring Site Map ........................................................................................................ 8 Figure 2. The Air Quality Index ....................................................................................................................11 Figure 3. AIRNow AQI Forecast Map.........................................................................................................12 Figure 4. MCAQD AQI Map ........................................................................................................................13 Figure 5. MCAQD Hourly Pollutant Data Map .........................................................................................13 Figure 6. 2016 Air Monitoring Instruments by Site ....................................................................................29 Figure 7. 2016 CO Monitoring Site Map......................................................................................................32 Figure 8. 2016 NO2 Monitoring Site Map ....................................................................................................35 Figure 9. 2016 O3 Monitoring Site Map .......................................................................................................37 Figure 10. 2016 Pb Monitoring Site Map .....................................................................................................40 Figure 11. 2016 PM10 Monitoring Site Map .................................................................................................42 Figure 12. 2016 PM2.5 Monitoring Site Map.................................................................................................45 Figure 13. 2016 SO2 Monitoring Site Map ...................................................................................................50 Figure 14. 2016 O3 Exceedance Days ...........................................................................................................53 Figure 15. 2016 O3 Violations based on 2008 NAAQS .............................................................................54 Figure 16. 2016 O3 Violations based on 2015 NAAQS .............................................................................55 Figure 17. 2016 Public Announcement ..................................................................................................... 157 Figure 18. Public Meeting Sign-In Sheet ................................................................................................... 158 Figure 19. Comments Received from MAG............................................................................................. 160 Figure 20. MCAQD Responses to MAG Review Comments ............................................................... 163 2016 Air Monitoring Network Plan (June 29, 2017) Page 5 of 171 ABSTRACT In 2016, the Maricopa County Air Quality Department (MCAQD) Air Monitoring Division (AMD) successfully operated a robust air quality surveillance system that monitored for regulated ambient air pollutants as per 40 CFR Parts 50 and 58. This Annual Monitoring Network Plan (AMNP) documents how the system performed during 2016. The air monitoring data produced are intended for regulatory compliance determinations regarding six regulated ambient air pollutants. The plan covers changes made to the air monitoring network in 2016, and it provides supporting information for those changes. In 2016, there were no request waivers from air monitoring regulations. The MCAQD informs personnel at the Environmental Protection Agency’s Region 9 (EPA R9) office of any significant data collection interruptions immediately. In 2016, air monitoring was suspended at one site due to inaccessibility. The Higley site remained closed due to the need to relocate the monitoring station’s physical location. The build-out and move was not completed by the end of 2016 as hoped, but in early 2017. During 2016, some notable accomplishments were: • performing specialized particulate air monitoring for chemical speciation from the 2016 Thanksgiving through the 2017 New Year’s holiday season; and, • assisting the Fort McDowell Yavapai Nation by temporarily loaning air monitors to prevent PM10 and O3 data interruption. Department personnel maintained successful working relationships with regulatory agency representatives, customers, and stakeholders. We provided our data to persons from these groups as requested, and we responded to calls from the public regarding air monitoring questions. We maintained our air monitoring website for the public’s benefit as well as data reporting to AirNow. 2016 Air Monitoring Network Plan (June 29, 2017) Page 6 of 171 INTRODUCTION TO THE AIR MONITORING NETWORK PLAN Each year, MCAQD produces a comprehensive Air Monitoring Network Plan (AMNP) that provides vital information regarding the air monitoring surveillance system operating within Maricopa County. The plan addresses the EPA’s requirements for operating the surveillance system as per 40 CFR Part 58 - Ambient Air Quality Surveillance. As per 40 CFR Part 58, Subpart B §58.10(a)(1), the EPA requires each air monitoring organization (MO) operating within the U.S. and its territories to develop and submit an annual plan by July 1st following a 30-day public comment period. The plan is complementary to the annual data certification process. It helps us continuously review, assess, and improve how well the county’s air monitoring surveillance system, or network, is performing. The plan informs the public, EPA, and other MOs of potential changes to the monitoring network. The design and performance of an ambient air monitoring network and data certification process are covered by the regulatory requirements found in 40 CFR Part 58 - Subpart A (general provisions), Subpart B (monitoring network), Subpart C (special purpose monitors (SPM)), Subpart D (comparability of ambient data national ambient air quality standards (NAAQS)), Subpart F (air quality index reporting), and Subpart G (federal monitoring). Last, it provides information regarding exceedances and violations of the NAAQS for the six regulated pollutants. Additionally, the plan helps improve the public’s knowledge of local air pollution concerns. It describes our reporting of near-real time pollutant data to the public via our website, which helps people avoid exposure to elevated pollution levels by altering their daily activities. The MCAQD’s monitoring network is comprised of six “criteria pollutant” (CP) subnetworks and 26 monitoring sites at the beginning of 2016. The AMNP includes an abundance of information including metadata for each monitoring site and a summary of the CP data produced in 2016. Fundamental information regarding how well each monitor’s siting and operation met applicable regulatory requirements is included. Furthermore, the plan addresses other regulatory requirements found in 40 CFR Part 58, Subpart G Appendix A (quality assurance requirements for state and local air monitoring stations (SLAMS), Appendix C (ambient air quality monitoring methodology), Appendix D (network design criteria for ambient air quality monitoring), and Appendix E (uniform air quality index (AQI) and daily reporting). The plan’s information includes, but is not limited to: • Detailed descriptions of the air monitoring sites and the monitoring conducted at each; • The quality and suitability of comparing the CP data to the NAAQS; • Design value criteria, which are metrics used to determine how many pollutant monitors are required to operate within each CP network; • Three years of CP data from each monitor and required statistical analyses; • How MCAQD plans to review and address a violating monitor; • Proposed changes to sites and/or monitors within the next 18 months; • Any proposed changes to the monitoring or analytical methods; • Brief information regarding special purpose and/or research-driven air monitoring, if conducted; • Any requests for waivers from specific air monitoring requirements; and • Public comments received regarding the final draft AMNP and MCAQD’s response to the comments. 2016 Air Monitoring Network Plan (June 29, 2017) Page 7 of 171 Each year, the MCAQD solicits public comments on the final draft AMNP. Following the 30-day public comment period, the MCAQD amends the final draft as needed. Then, the final AMNP is submitted to EPA R9 for review and approval. The EPA R9 completes the review process within 120 days of receiving the plan, and the EPA R9 Administrator, or their representative, must approve the requests for network changes and waivers. If EPA does not approve the plan, then the MCAQD addresses the concerns presented by EPA R9 personnel and submits a revised plan. Once the plan is approved, MCAQD posts it on our website and the EPA makes it available to other MOs through the EPA’s Ambient Monitoring Technology Information Center (AMTIC) website. Figure 1 shows the location of MCAQD’s air monitoring sites discussed in this year’s plan. Figure 1. 2016 Air Monitoring Site Map 2016 Air Monitoring Network Plan (June 29, 2017) Page 8 of 171 Overview of the Clean Air Act and Criteria Pollutants Between the years 1900 and 1970, the emission of the six CPs increased significantly. These pollutants occur throughout the U.S., and are known to cause health problems, property damage, and harm to the environment. This led to the Clean Air Act (CAA) being signed into law in 1970. The CAA, and its amendments, provides the framework for pertinent state/local/tribal agencies to assess and protect air quality through an air monitoring program. The MCAQD monitors for all six CPs, which are: 1. Carbon monoxide (CO) 2. Lead (Pb) 3. Nitrogen oxides (NOx) with nitrogen dioxide (NO2) used as the indicator compound 4. Ozone (O3) 5. Particulate matter ≤10 micrometers (PM10) and ≤2.5 micrometers (PM2.5) 6. Sulfur dioxide (SO2) The U.S. EPA regulates CPs using the NAAQS, which establish ambient levels for each CP using health and welfare-based criteria. There are two sets of standards. As per the CAA §109(b), the “primary” NAAQS are designed to provide an adequate margin of safety that is requisite to protecting public health. The “secondary” NAAQS are designed to protect public welfare from any known or anticipated adverse effects associated with the presence of a CP in the ambient air. The primary standards protect public health and secondary standards protect public welfare by preventing damage to property such as farm crops and buildings, visibility impairment in national parks and wilderness areas, and the protection of ecosystems. The NAAQS are not static. The CAA requires that they undergo periodic review using the most recent medical, epidemiological, physiological, and ecosystem research available. Historically, when a NAAQS level is changed; it is lowered and becomes more stringent, or “conservative”. Lowering a NAAQS level occurs when it is considered necessary to meet the CAA standards for protecting public health and welfare. The NAAQS review is a lengthy process that assesses the science upon which each NAAQS is based as well as the standard itself. The Clean Air Scientific Advisory Committee (CASAC) provides independent advice to EPA concerning the need to change a standard. In addition, comments are solicited from the public. More information regarding the NAAQS review process is available at EPA’s website. The U.S. EPA’s Regional Offices oversee the enforcement of the CAA, and MCAQD falls under the jurisdiction of EPA R9. The U.S. EPA Office of Air Quality Planning and Standards (OAQPS) oversees the air monitoring program at a national level, leads regulatory and/or policy changes affecting air monitoring operations and quality requirements, and engages in the review of the NAAQS. 2016 Air Monitoring Network Plan (June 29, 2017) Page 9 of 171 The National Ambient Air Quality Standards The NAAQS are geared toward improving air quality in geographical areas where the current quality is unacceptable as well as preventing air quality deterioration in geographical areas where the air is relatively free of pollution. Since each CP has different health effects and environmental damage potential, the NAAQS level(s) are different for each pollutant. Some pollutants have standards for both long-term and short-term averaging times. The short-term standards are designed to protect against acute health effects, while the long-term standards are designed to protect against chronic health effects. Table 1 shows a summary the current primary and secondary NAAQS levels for each CP. Table 1. National Ambient Air Quality Standards Standard Averaging Pollutant Level Form Type Time 8 hours 9 ppm Carbon Monoxide Not to be exceeded more than primary (CO) once per year 1 hour 35 ppm Lead (Pb) Nitrogen Dioxide (NO2) Ozone (O3) Particle Pollution (PM) PM2.5 PM10 Sulfur Dioxide (SO2) primary and secondary Rolling 3-month average 0.15 μg/m3 Not to be exceeded primary 1 hour 100 ppb 98th percentile of 1-hour daily maximum concentrations, averaged over 3 years primary and secondary 1 year 53 ppb Annual Mean Annual fourth-highest daily 0.070 ppm maximum 8-hour concentration, averaged over 3 years primary and secondary 8 hours primary 1 year 12.0 μg/m3 secondary 1 year 15.0 μg/m3 primary and secondary 24 hours 35 μg/m3 primary and secondary 24 hours 150 μg/m3 primary 1 hour 75 ppb annual mean, averaged over 3 years annual mean, averaged over 3 years 98th percentile, averaged over 3 years Not to be exceeded more than once per year on average over 3 years 99th percentile of 1-hour daily maximum concentrations, averaged over 3 years Not to be exceeded more than once per year Source: Adapted from the table shown: https://www.epa.gov/criteria-air-pollutants/naaqs-table. secondary 2016 Air Monitoring Network Plan (June 29, 2017) 3 hours 0.5 ppm Page 10 of 171 The Air Quality Index To better communicate current CP health risks to the public, EPA developed the Air Quality Index (AQI), a health risk communication tool that converts CP concentrations into six health-impact related color-coded indices based upon the NAAQS. The AQI communicates the air quality forecast using the graduated color scheme shown on Figure 2. The AQI can be used to provide an overall air quality value by combining multiple CP concentrations as well as an air quality value for each CP. Developing AQIs was furthered over the past few years by continuous analyzers replacing many of their sampler predecessors; thereby making data available electronically as it is generated. Currently, many MOs, including MCAQD, provide near real-time CP data to their agency’s website and/or the EPA’s website. Continuous air monitoring data helps air quality professionals gauge current, local air quality conditions. Air quality forecasters can better project AQI values for the next 24 to 48 hours so the public can better prepare for expected air quality conditions. For instance, members of the public may use the AQI values to reduce their exposure to air pollution and its associated health effects by modifying their daily activities. Index Color Designation Air Quality Health Impact 0 – 50 Green Good No harmful effects expected. 51 – 100 Yellow Moderate Unusually sensitive people should consider limiting prolonged outdoor exertion. 101 – 150 Orange Unhealthy for Sensitive Groups Active children & adults, people with respiratory disease, e.g., asthma, should limit prolonged outdoor exertion. 151 – 200 Red Unhealthy Everyone should observe caution. Avoid prolonged outdoor exertion. 201 – 300 Purple Very Unhealthy Avoid all outdoor exertion. Use extreme caution outdoors. 301 – 500 Maroon Hazardous Everyone should avoid all outdoor exertion. Figure 2. The Air Quality Index Source: 40 CFR Part 58, Appendix G – Uniform Air Quality Index (AQI) and Daily Reporting 2016 Air Monitoring Network Plan (June 29, 2017) Page 11 of 171 The AQI is used throughout the U.S. and the EPA AIRNow website provides air pollution forecast maps for O3 and PM2.5, plus real-time air pollution maps with CO, O3, PM10, and PM2.5 data for major metropolitan areas, including the Phoenix metropolitan area. Again, different colors on the map indicate health risks using pollutant concentrations. Figure 3 shows there is a moderate health risk due to O3 and PM2.5 within the yellow area and an increased risk for unhealthy or sensitive groups within the orange area. Figure 3. AIRNow AQI Forecast Map Source: EPA AIRNow Website The MCAQD has participated in the AIRNow AQI program since 2001. The MCAQD, in cooperation with ADEQ and PCAQCD, expanded the geographical area covered by the AIRNow maps. This area now includes sites as far east as Queen Creek, as far south as Casa Grande, and as far west as Palo Verde. Figure 4 shows the MCAQD AQI webpage. 2016 Air Monitoring Network Plan (June 29, 2017) Page 12 of 171 Figure 4. MCAQD AQI Map Source: MCAQD’s Air Quality Website In addition to AQI values, the MCAQD website also provides hourly pollutant concentrations for CO, NO2, O3, PM10, PM2.5, and SO2. Figure 5 shows the hourly O3 data webpage. Please note that if a site does not have an O3 monitor, a red cross shows to indicate that an O3 monitor is not at that site. The hourly data webpages used the same depiction on a site-by-site basis for other pollutant monitors. Figure 5. MCAQD Hourly Pollutant Data Map Source: MCAQD’s Air Quality Website 2016 Air Monitoring Network Plan (June 29, 2017) Page 13 of 171 Information Regarding the Causes, Characteristics, and Compliance of Criteria Pollutants Unless otherwise noted, the information regarding air pollutants in this section was compiled from various pages at the EPA’s Air and Radiation website. Carbon Monoxide (CO) Carbon monoxide is a colorless, odorless gas found in both outdoor and indoor air. Carbon monoxide is primarily formed by the incomplete combustion of fossil fuels, e.g., carbon-containing fuels, and the photochemical reactions of gases in the atmosphere. Concentrations of CO tend to peak in the colder, winter months. Carbon monoxide is produced by both natural and anthropogenic sources, aka, human activities. One of the more significant anthropogenic sources of CO is automobile exhaust. Concentrations of CO from motorized vehicles lowered considerably over the last two decades partly due to replacing carburetors with fuel injectors, which results in a more complete combustion of fuel. Natural, or biogenic, sources of CO emissions include volcanic emissions and smoke from wildfires. Smoke from tobacco, cooking, fireplaces, and woodstoves contribute to indoor exposure to CO. In Arizona, the primary sources of CO are exhaust from motor vehicles, electricity generation, industrial and commercial boilers, and household natural gas burning. Carbon monoxide can be a minor contributor to the formation of ground-level O3. Carbon monoxide enters the body through inhalation, and the body eliminates CO primarily through exhalation and to a lesser extent through metabolic activity. After being inhaled, CO enters the bloodstream and binds to the blood’s hemoglobin; thereby forming carboxy-hemoglobin that displaces oxygen (O2) in the blood. This reduces the blood’s capacity to carry O2 to organs and tissues and causes the body to become O2 deprived. This deprivation of O2 is called hypoxia. This can adversely affect those with anemia, because anemia already reduces the blood’s ability to carry O2. Exposure to CO can result in a type of cardiovascular disease called ischemic heart disease, especially for those with existing heart problems. The central nervous system is adversely affected by CO as well. Acute exposure to severely high levels of CO is toxic and potentially fatal, and its effects on the body are well-known and widely studied. According to the Agency for Toxic Substances and Disease Registry, severe acute poisoning can cause cardiac arrest, heart attack, seizers, hypotension, respiratory arrest, noncardiogenic pulmonary edema, and coma. Moderate exposure may include many symptoms, such as confusion, chest pain, and weakness. Mild exposure may lead to symptoms that include headache, nausea, vomiting, dizziness, and blurred vision. In 1971 EPA established identical primary and secondary standards for CO: an 8-hour primary standard at 9 parts per million (ppm) and 1-hour primary standard at 35 ppm. The EPA has reviewed the CO NAAQS several times since 1971, which led to the secondary standard being revoked in 1985. The primary standard levels have not changed to date, and currently, CO concentrations nationwide are substantially lower than the CO NAAQS. In 2016, Maricopa County achieved its 21st consecutive year of compliance with the 8-hour CO standard. This general information was supplemented by the EPA OAQPS Health and Environmental Impacts Division’s publication the Quantitative Risk and Exposure Assessment for Carbon Monoxide – Amended July 2010, which was produced for the 2010 CO NAAQS review. 2016 Air Monitoring Network Plan (June 29, 2017) Page 14 of 171 Lead (Pb) Lead is a heavy metal that occurs naturally in the environment and it is used in manufactured products. The major sources of Pb emissions have historically been motor vehicles and industrial sources. In the early 1970s, EPA established national regulations to reduce the Pb content in gasoline, gradually. In 1975, unleaded gasoline was introduced for motor vehicles equipped with catalytic converters. The EPA banned the use of leaded gasoline in “highway motor vehicles” in December 1995. A highway vehicle includes, but is not necessarily limited to passenger vehicles propelled by their own motor, whether such motor is powered by gasoline, diesel fuel, special motor fuels, electricity, or otherwise. As a result of EPA’s regulatory efforts to remove Pb from gasoline, levels of Pb into the air decreased by 94 percent between 1980 and 1999. Levels of airborne Pb in Maricopa County were drastically reduced starting with the introduction of unleaded gasoline. Since Pb concentrations were consistently well below the NAAQS, Maricopa County was allowed to discontinue monitoring for airborne Pb in 1997; although monitoring has resumed today, see below. Due to the phase-out of leaded gasoline, metals processing is the major source of lead emissions to the air today. The highest levels of Pb in air are generally found near lead smelters. General aviation airports are also a significant source of Pb, as general aviation fuel still contains Pb additives. Other stationary sources include waste incinerators, utilities, and Pb-acid battery manufacturers. Exposure to Pb has an array of adverse health effects. Once taken into the body, Pb distributes throughout the body in the blood and accumulates in the bones. Depending on the level of exposure, Pb can adversely affect the nervous system, kidney function, immune system, reproductive and developmental systems, and the cardiovascular system. Lead exposure also affects the O2 carrying capacity of the blood. Currently, the foremost health effects associated with Pb exposure to children are neurological and for adults cardiovascular, e.g., high blood pressure and heart disease. Infants and young children are especially sensitive to even low levels of Pb, which may contribute to behavioral problems, learning deficits, and lowered IQ. Lead is persistent in the environment and accumulates in soils and sediments through deposition from air sources, direct discharge of waste streams to water bodies, mining, and erosion. Ecosystems near Pb point-sources demonstrate a wide range of adverse effects including losses in biodiversity, changes in community composition, decreased growth and reproductive rates in plants and animals, and neurological effects in vertebrates. In 2008, the Pb primary standard was revised to better protect public health, especially for “sensitive” populations, which include asthmatics, children, and the elderly. Initially, Pb monitoring was required near sources that emitted more than one ton of Pb per year. With the introduction of the revised NAAQS, Pb monitoring was initially required at NCORE stations around the U.S. and near other potential sources of Pb. ADEQ operates the local NCORE station, the JLG Supersite. In July 2010, MCAQD opened a new Pb monitoring site at Deer Valley Airport, one of the busiest general aviation airports in Maricopa County and the largest expected source of Pb emissions. Results from more than six years of monitoring have shown that ambient levels of Pb at the airport are still well below the current Pb NAAQS. 2016 Air Monitoring Network Plan (June 29, 2017) Page 15 of 171 Nitrogen Oxides (NOX) with Nitrogen Dioxide (NO2) as the Indicator Compound Nitrogen dioxide belongs to a family of reactive gases called NOx. These gases are formed when fuel is burned at high temperatures, and they are primarily emitted from motor vehicle exhaust and power plants. Nitrogen oxides are key compounds in the production of ground-level ozone (O3). Nitrogen dioxide has been selected by EPA as the “indicator” compound for NOx. Unlike the other gaseous CPs, we measure the ambient levels of NOx indirectly. The analytical process involves determining the concentration of NO2, then nitric oxide (NO). The NO2 and NO concentrations are summed to determine the NOX concentration. For most of the population, the primary route of NO2 entry into the body is inhalation. Current scientific evidence links short-term NO2 exposures, ranging from 30 minutes to 24 hours, with adverse respiratory effects including airway inflammation in healthy people and increased respiratory symptoms in people with asthma. Studies show a connection between breathing elevated short-term NOx concentrations and increased visits to emergency rooms and hospital admissions for respiratory issues, especially asthma. Additionally, NO2 reacts with ammonia, moisture, and other compounds to form small nitrate particles. These small particles penetrate deeply into sensitive parts of the lungs and can cause or worsen respiratory disease, such as emphysema and bronchitis. They can aggravate existing heart disease, leading to increased hospital admissions and premature death, too. In 1971, EPA established the first primary and secondary standards for NO2 at 53 ppb, averaged annually. EPA reviewed the standards in 1985 and 1996, and chose not to revise either standard. In January 2010, EPA retained the 1971 standards and added a 1-hour average limit of 100 ppb to the primary standard, determined as a three-year average of the annual 98th percentile value. Research indicates that individuals who spend time on or near major roadways can experience acute exposures to NO2 concentrations that are considerably higher than those measured by the NO2 network. “Near-roadway” means within about 50 meters of a major roadway. Here, the NO2 concentrations have been found to be approximately 30 to 100% higher than ambient concentrations away from roadways. Research by the EPA shows that NO2 concentrations inside vehicles can be 23 times higher than those measured at nearby area-wide monitors. For this reason, in February 2010 the EPA revised the 1-hour NO2 NAAQS and promulgated requirements for monitoring NO2 near roadways in large urban areas. In response, AMD established two NO2 monitor sites: Diablo, which is located near I-10 and U.S. Hwy 60 - east of downtown Phoenix, and Thirty-Third, which is located off I-10 and 33rd Avenue - west of downtown Phoenix. In 2016, there were no exceedances of the 1-hour or annual NO2 NAAQS standards. Maricopa County is currently in attainment for the NO2 1971 and 2010 NAAQS. In fact, no area within the U.S. is in nonattainment with the NO2 NAAQS. 2016 Air Monitoring Network Plan (June 29, 2017) Page 16 of 171 Ozone (O3) Ozone is a colorless, slightly odorous, reactive gas containing three oxygen atoms. Ozone occurs naturally in the Earth’s upper atmosphere, or the stratosphere, where it has a beneficial effect of protecting us from the Sun’s harmful ultraviolet rays. However, at ground-level, it is the main component of smog, can harm our health, and affect vegetation and ecosystems. Ozone is not directly emitted into the air, but is formed by a complex photochemical reaction that involves sunlight, heat, and a “soup” of pollutants, especially volatile organic compounds (VOC) and NOx. Ozone is continually going through a rapid, natural cycle of being formed, then converted back to the more stable, or “normal”, “diatomic” oxygen molecule (O2). Anthropogenic activities have been a leading cause of ground-level O3 due to VOC and NOx emissions from industrial facilities, electric utilities, motor vehicles, gasoline and chemical solvent vapors. Ozone is likely to reach unhealthy levels on hot, sunny days in urban environments, but it can affect rural areas by being transported long distances by wind. Although the Phoenix metropolitan area has sunshine most of the year, there is a seasonal pattern to O3 concentrations with lower concentrations occurring in the winter months. Ozone causes significant physiological and pathological changes in both animals and humans at concentrations present in many urban environments. Ozone affects the respiratory system in people and animals, and it also affects the growth of plants. The primary route of entry into the body is inhalation. Symptoms of O3 exposure generally involve the lungs, and can include coughing, a sore or scratchy throat, shortness of breath, chest pain on deep inhalations, increases in asthma attacks, and damage to the lungs. The population at the greatest risk is children. This is because their lungs are still developing, they are more likely to be active outdoors when O3 levels are high, and they are more likely to have asthma than adults are. It has been widely documented that O3 even at low concentrations causes damage to plants and reduces crop yields, resulting in it being considered by plant scientists as the most important phytotoxic air pollutant. In 1979, EPA reduced the 1971 1-hour primary and secondary O3 NAAQS level of 0.08 ppm to 0.12 ppm. In 1997, EPA revised the O3 NAAQS establishing an 8-hour NAAQS at a level of 0.08 ppm. Since Maricopa County has attained the 1979 1-hour standard, EPA revoked the 1979 1-hour NAAQS for the Phoenix-Mesa nonattainment area in 2005. In addition, the Phoenix-Mesa nonattainment area for the 1997 8-hour O3 NAAQS is now in attainment and was redesignated as “attainment” by EPA for this standard effective October 17, 2014. In March 2008, the NAAQS were lowered again to better protect public health and welfare. The EPA reduced the primary and secondary 8-hour O3 NAAQS from 0.080 to 0.075 ppm (75 ppb). Compliance with the standard is determined by averaging the fourth highest 8-hour average over a 3year period, which must be less than or equal to 0.075 ppm. When the 2008 NAAQS became effective in May 2008, O3 concentrations in the County had improved, but exceeded the new level. This led to EPA designating portions of Maricopa and Pinal Counties as nonattainment for the 2008 O3 NAAQS in 2012. Excluding portions of Maricopa and Pinal Counties, Arizona is in attainment for the 2008 O3 NAAQS. How well the state fares with the 2015 NAAQS is currently under review. In December 2015, the O3 NAAQS levels were lowered to 0.070 ppm. More information regarding how this lower level may affect the number of O3 exceedances experienced in Maricopa County can be found in the 2016 NAAQS Exceedance and Violation Summary section. 2016 Air Monitoring Network Plan (June 29, 2017) Page 17 of 171 Particulate Matter (PM) Particulate matter is a collective term describing very small solid or liquid particles that vary considerably in size, geometry, chemical composition, and physical properties. Numerous chemical components may be present in particle pollution including acids, nitrates, sulfates, organic chemicals, metals, soils, and finer dust particles. Particulates can be formed by natural processes, such as pollen production and wind erosion, and anthropogenic activities, such as commercial/industrial/agricultural operations and motor vehicle use. Particulates contribute to visibility reduction, pose a threat to public health, and cause economic damage. The EPA currently regulates PM pollution using two size categories: • “PM10”, particles with size range ≤10 micrometers (µm) in aerometric diameter; and • “PM2.5”, aka “fine particles”, particles with a size range of ≤2.5 µm in aerometric diameter. The larger particles that make up PM10 form through mechanical processes such as the grinding of matter and the atomization of liquids, natural weathering processes, and anthropogenic activities that disturb soil. In Arizona, elevated concentrations of PM10 are associated with people driving on unpaved roads, dusty industries, and dust storms related to high wind events. Fine particulates are formed by the incomplete combustion of fossil fuels, the condensation of vapors, and photochemical processes. Fine particulates are further classified as “primary”, meaning they are produced within and emitted directly from a source such as exhaust from a diesel engine or smoke from a fire. “Secondary” particulates form in the atmosphere from gaseous pollutants. Nitrates and sulfates are formed by the photochemical oxidation of gaseous NO2 and SO2, respectively. In addition, secondary organic carbon particles form through a photochemical transformation of gaseous organic compounds. The primary route of entry for PM10 into the body is through inhalation. The size, shape, and chemical composition of particulates determine the health effects that may result from PM exposures. The potential for causing health problems is directly linked to particle size. Smaller particles are more toxic than larger particles because of the higher relative content of toxic metals and ions combined with the increase of particle surface area. The EPA is concerned about particles ≤10 µm in diameter, because those are the particles that generally pass through the throat and nose and enter the lungs. Coarser particles are deposited in the upper parts of the respiratory system, but finer particles are deposited deeper into the respiratory system. Fine particles are small enough to be deposited in the lung’s alveoli, which are tiny air sacks deep inside the lungs. Some research shows that the smallest of particles may enter the bloodstream as well. Currently, research is underway to better understand the health effects of ultrafine particles. The populations most at risk from particulate exposure are older adults, diabetics, and children; because children tend to be more physically active and that causes them to breath faster and deeper. Once inhaled, these particles can cause serious heart and lung health effects that affect both humans and animals. Epidemiological studies show that long-term, chronic exposures, i.e., years of exposure to high levels of particulates, are associated with reduced lung function, the development of chronic bronchitis, and premature death. Studies show that short-term, acute exposures, i.e., hours to days of exposure to high levels of particulates, can aggravate lung disease, asthma attacks, acute bronchitis, 2016 Air Monitoring Network Plan (June 29, 2017) Page 18 of 171 and may increase susceptibility of respiratory infections. For those with heart disease, it can induce heart attacks. Exposure to acidic aerosols, i.e., acidic particles with an aerometric diameter of about 0.01 – 100 µm, have been linked to the upper respiratory tract and pulmonary system’s inability to remove harmful particles. In 1987, the EPA replaced the 1971 Total Suspended Particulates (TSP), i.e., particles around 40 µm and less in aerometric diameter, with the primary and secondary NAAQS for PM10. The EPA revoked the annual PM10 NAAQS in 2006. Currently, the 24-hour primary and secondary levels for PM10 are both 150 µg/m3. In 2012, the PM10 NAAQS underwent review with exposure to PM10-2.5 also being considered. This review resulted in EPA retaining the existing primary and secondary 24-hour PM10 NAAQS, which is considered to provide for protection against effects associated with acute exposure to PM10-2.5. In 1997, the EPA reviewed and updated the PM2.5 NAAQS levels. Since then, these NAAQS have been reviewed in 2006 and 2012 with some levels being made more stringent. On December 14, 2012, EPA retained the primary 24-hour PM2.5 standard of 35.0 g/ m3, but reduced the primary and secondary NAAQS annual PM2.5 level to 12.0 g/ m3 and 15.0 µg/m3, respectively. While Maricopa County is currently in attainment for PM2.5, we tend to experience 24-hour exceedances during the colder, winter months, especially from Thanksgiving into January. In colder months, smoke from residential fireplaces coupled with the temperature inversions tends to drive up PM2.5 concentrations throughout the metropolitan area. To address this problem, ADEQ and Maricopa County worked together on a public outreach campaign to reduce wood burning within the county around the fall/winter holidays. Maricopa County’s umbrella dust abatement rule, Rule 310 – Fugitive Dust From Dust-Generating Operations, has been revised many times through the years. Rule 310 regulates construction dust, trackout dust, and dust from unpaved parking and vacant lots. The recent PM10 State Implementation Plan (SIP) includes seventy-seven new measures to enhance enforcement of the rule, implementation of agricultural best management practices, diesel engine replacement and retirement programs, and requirements for cleaner burning fireplaces to further reduce PM2.5 emissions. The western U.S. has a unique problem with respect to exceedances of the PM NAAQS. It has been acknowledged for decades that exceedances of the PM NAAQS due to blowing dust and smoke from massive wildfires may be “exceptional” in nature, i.e., not expected to recur or caused by acts of nature that overwhelm emission controls. Initially by policy, and later by rule, EPA established procedures and standards for documenting whether an exceedance of the NAAQS is the result of an “exceptional event” (EE) and if the pollutant data should be excluded from NAAQS compliance determinations. In 2007, EPA adopted the Treatment of Data Influenced by Exceptional Events (EER) rule that covers how to prepare an EE package for EPA’s review and how to manage event-related data. In the past few years, most exceedances of the PM10 NAAQS within Maricopa County have been successfully shown to meet the EE requirements. Exceptional event information for 2014-2016 is shown in the 2016 Summary of Network Results and Required Information section. 2016 Air Monitoring Network Plan (June 29, 2017) Page 19 of 171 Sulfur Dioxide (SO2) Sulfur dioxide is a colorless gas with a pungent irritating odor at elevated concentrations. It is emitted primarily from the burning of high-sulfur coal, oil, and diesel fuel, and the smelting of metals like copper. Most fuels contain trace quantities of sulfur. When fuels burn, both gaseous SO2 and sulfate particles are released into the air due to incomplete combustion of the fuel. Consequently, separating the health effects of these two chemicals is difficult. Together, SO2 and PM2.5 act separately and together to threaten public health and can make up a major portion of pollution in many cities. Sulfur dioxide is removed from the atmosphere through dry deposition, and it is converted to sulfuric acid, and eventually sulfate particles. Both contribute to public health problems and negatively affect the environment. The SO2 and sulfate from vehicular emissions have been significantly reduced over the years through lowering the sulfur content in diesel fuel and gasoline. Sulfur dioxide’s primary route of entry into the body is by inhalation. It contributes to respiratory illness, particularly in children and the elderly, and aggravates existing heart and lung diseases. Sulfur dioxide contributes to the formation of acid rain, and it contributes to the formation of atmospheric particles that cause visibility impairment, most notably in national parks. Sulfur dioxide and the pollutants formed from SO2, such as sulfate particles, can be transported over long distances and deposited far from the point of origin. This means that problems associated with SO2 are not confined to areas where it is emitted. The EPA 2011 National Emissions Inventory (NEI) report shows the estimated quantity of SO2 emitted from various sources in Arizona and in Maricopa County. The majority of statewide SO2 emissions occurs in eastern Arizona and is produced by coal-based electricity generation, the smelting of non-ferrous sulfide copper ore, and smoke from wildfires. Major controls were installed in Arizona’s copper smelters in the 1980s, which reduced SO2 emissions substantially. In addition, most of the copper ore smelters that used to operate have been shutdown, which reduced SO2 emissions in localized areas around the state. As of 2013, the only regulated smelters operating in Arizona are located about 90 miles east of downtown Phoenix, in Miami and Hayden, Arizona. In Maricopa County, mobile and industrial sources emit the majority of SO2. Currently, Maricopa County is in attainment for SO2. The AMD operates two year-round SO2 monitoring stations, and the siting of SO2 monitors meets EPA requirements. 2016 Air Monitoring Network Plan (June 29, 2017) Page 20 of 171 AIR MONITORING STRATEGIES AND SURVEILLANCE SYSTEM DESIGN Overview of Air Monitoring Requirements and System Design The AMD monitors for the six CPs by operating and maintaining 26 ambient air monitoring sites located throughout Maricopa County. The sites’ startup dates range from 1961 for Central Phoenix to 2015 for Thirty-Third. Land use patterns around the sites vary from densely populated urban areas to sparsely populated rural settings. The sites’ elevations range from 845 feet above sea level at Buckeye to 5190 feet above sea level at the top of Humboldt Mountain. Some sites measure many pollutants, while others may only measure one or two. The MCAQD chose each site and its pollutant monitors based on specific EPA requirements as described below, special requests from EPA, and/or specific needs of the County. The 40 CFR Parts 50, 53, and 58 provides the requirements for operating an ambient air monitoring program. The MCAQD is fully responsible for designing and operating the total air monitoring surveillance system and managing the pollutant data generated. The MCAQD holds the Primary Quality Assurance Organization (PQAO) designation for the county’s ambient air monitoring network, which basically means that we do not share QA roles and/or responsibilities with another MO. The MCAQD operates air monitors at EPA-approved State and Local Air Monitoring Stations (SLAMS), which includes the near-road NO2 stations. On occasion, special air monitoring initiatives involve temporarily operating CP monitors designated as Special Purpose Monitors (SPM), as well as PM speciation and air toxics monitors. This section details how each CP network is designed to obtain “representative” data. The 40 CFR Part 58 Appendix D covers the requirements for designing the air monitoring network and is summarized in this section. To determine compliance with the NAAQS, EPA-approved air monitors must collect the CP data. The EPA classifies approved monitor methods into one of three categories: a federal reference method (FRM), a federal equivalent method (FEM), or an approved regional method (ARM). The MCAQD uses FRM and FEM instruments. This practice ensures high-quality data of like kind are used for compliance-driven decisions. However, data from research monitors, e.g., non-compliance monitors, can be used to develop state and/or federal attainment and maintenance plans, further evaluate regional air quality models used in developing emissions control strategies, tracking trends in air pollution, and evaluating the impact control measures are having on improving air quality. Any short-term research data collected by the MCAQD can be made available to decision makers; but the data are not reported to AQS. Within Maricopa County, the ADEQ collects compliance data as well as research data at the JLG Supersite via the following EPA monitoring networks: National Core multi-pollutant site (NCORE), Photochemical Ambient Monitoring Stations (PAMS), Chemical Speciation Network (CSN), and National Air Toxics Trends Stations (NATTS). The ADEQ also collects air toxics samples for the Urban Air Toxics Monitoring Program (UATMP) at MCAQD’s South Phoenix site. In addition, ADEQ collects PAMS data east of Maricopa County, near Queen Valley which is located in Pinal County. The data from these networks are reported to EPA and should be available in AQS and/or another EPA database. 2016 Air Monitoring Network Plan (June 29, 2017) Page 21 of 171 In addition to producing an annual network plan, the EPA now requires a five-year network assessment as per 40 CFR Part 58.10. The 5-year assessment is best served by collaborating with EPA, ADEQ, and other local and/or tribal MOs. The first assessment was produced in 2010 and the second was produced in 2015. The assessment process continues to improve, and MCAQD works with other MOs regarding CP network design issues as needed. The MOs within Arizona may provide support to each other by exchanging technical services and/or knowledge when problems arise with instrumentation or when conducting special studies. Basic Air Monitoring Objectives Each ambient air monitor must have a designated basic monitoring objective. The three objectives below apply to establishing required SLAMS monitoring stations and choosing the general locations for additional monitoring sites. This appendix further describes specific requirements for specific pollutants as well as other air monitoring networks not operated by the MCAQD such as NCore, PAMS, PM speciation and O3 precursors. The objectives are not listed based on importance or priority. Each objective is important and must be considered individually. Table 2 shows the three basic objectives. Table 2. Basic SLAMS Air Monitoring Objectives Objective Description Provide air pollution data to the general public in a timely manner Data can be presented to the public in a number of attractive ways including: air quality maps, newspapers, MOs and EPA websites, and as part of weather forecasts and public advisories. Support compliance with ambient air quality standards and emissions strategy development Data from EPA-approved monitors for NAAQS pollutants will be used for comparing an area’s air pollution levels. Support for air pollution research studies Supplemental data useful with health effect assessments, atmospheric processes, or monitoring methods development work. Source: 40 CFR Part 58 Appendix D, 1.1(a – c) 2016 Air Monitoring Network Plan (June 29, 2017) Page 22 of 171 Monitor Types As mentioned earlier, each pollutant monitor must be designated one of three types. The monitor type is based upon how the data will be used and how long the monitor will remain in operation. Again, the MCAQD’s air monitoring network is comprised of SLAMS, which gather data for comparison to the NAAQS. The MCAQD may operate SPMs temporarily. These monitors are useful for gathering and reporting preliminary information regarding air quality in a local area quickly. In the event of a geographical area’s population increasing or data indicating that a SLAMS is more appropriate, an SPM may be reclassified to SLAMS and potentially outfitted with a different method. The 40 CFR Part 58.20 Subpart C states that “an SPM any monitor included in an agency’s monitoring network that the agency has designated as a special purpose monition the its annual monitoring network plan and in AQS, and which the agency does not count when showing compliance with the minimum requirements of this subpart for the number and siting of monitor of various types. Any SPM operated by an air monitoring agency must be included in the period assessments and the annual monitoring network plan”. The third type of monitor is a potentially significant deterioration (PSD) monitor is used for permitting a source facility before starting in a protected area. There are no Class A areas established within Maricopa County. Table 3 shows the three monitor types defined by EPA in 40 CFR Part 58. Table 3. Monitor Types Description of Use Name SLAMS EPA-approved, compliance monitor typically operated on a long-term basis. SPM* A monitor typically operated on a short-term basis and not necessarily EPAapproved. PSD A monitor typically operated for less than two years prior to a source opening in a protected Class A area and usually required by the permitting authority. * Reference 40 CFR Part 58 for important EPA’s requirements regarding SPM monitor operation. Usually, if the SPM operates for more than two years and meets 40 CFR Part 58 Appendix D siting requirements, removing it will need prior approval by EPA 2016 Air Monitoring Network Plan (June 29, 2017) Page 23 of 171 Site Types To support the three basic monitor objectives, each site must be identified as one of the six “site types” shown below. Site types may vary within each pollutant’s network. The site type is key to informing air quality professionals and the public about a pollutant’s peak concentration levels. Table 4 shows the site types as defined by EPA. Table 4. Site Types Determine the highest concentrations expected to occur in the area covered by the network. Measure typical concentrations in areas of high population density (population exposure) . Determine the impact of significant sources or source categories on air quality. Determine general background concentration levels. Determine the extent of regional pollutant transport among populated areas and in support of secondary standards. Measure air pollution impacts to visibility, vegetation damage, or other welfare-based impacts . Source: Adapted from 40 CFR Part 58, Appendix D.1 Monitoring Scales (Spatial Scales of Representativeness) To help link the monitoring objective and the site type with the physical location of a monitor, EPA developed the “spatial scale of representativeness” concept. As per 40 CFR Part 58, Appendix D 1.2 (a) and (b), “The goal in locating air monitors is to correctly match the spatial scale represented by the sample of monitored air with the spatial scale most appropriate for the monitoring site type, air pollutant to be measured and the monitoring objective. Thus, spatial Scale of representativeness is described in terms of physical dimension of the air parcel nearest to a monitoring site throughout which actual pollutant concentrations are reasonably similar”. Table 5 shows six scales of representativeness that are of most interest for the air monitoring site types described above. Table 5. Spatial Scales of Representativeness Name Distance Micro Scale 0 to 100 meters Middle Scale 100 to 500 meters Neighborhood Scale 0.5 to 4 kilometers Urban Scale 4 to 50 kilometers Regional Scale 10s to 100s of kilometers Characterize the nation and the globe as a whole Source: Adapted from 40 CFR Part 58, Appendix D 1.2 National and Global Scales 2016 Air Monitoring Network Plan (June 29, 2017) Page 24 of 171 Locating Air Monitoring Sites The air monitoring network is designed to provide pollutant data that represents countywide “ambient” air quality. EPA defines ambient air as “the air to which the public has access”. Since it is physically and fiscally impossible to monitor the air in every location, each monitor’s objective, the associated site type, and corresponding spatial scale of representativeness most appropriate for the CP to be measured are foremost in determining each site’s location. In addition to correctly integrating the above considerations, a site’s location must also have reasonable accessibility, security, and operating feasibility, such as a property owner’s agreeability to have monitoring conducted on their land and a clean power supply. For example, consider the case where the objective is to determine NAAQS compliance by understanding the maximum O3 concentrations for an area. Such areas would most likely be located downwind of a metropolitan area in a suburban residential area where children and other susceptible individuals are likely to be outdoors. Sites located in these areas are most likely to represent an urban scale of measurement. In this example, O3 precursor emission patterns, public activity, and meteorological characteristics that affect O3 formation and dispersion were considered when selecting an O3 monitoring site’s physical/geographical location; and, the spatial scale of representativeness was a result of the selection process. When applying these principles, the total quantity of monitoring sites that will serve the variety of data needs is often substantially higher than federal minimum requirements. The optimal size of each pollutant’s network involves compromises among data needs and available resources; and, a network’s size can change over time. Each pollutant’s network must be dynamic enough to maintain a current representative sampling of the air quality. 2016 Air Monitoring Network Plan (June 29, 2017) Page 25 of 171 Daily Uses of Criteria Pollutant Data Air Quality Forecasting The ADEQ, in conjunction with MCAQD, has developed a year-round air quality forecasting capability for the Phoenix metropolitan area. ADEQ takes the lead on air quality forecasting and the issuing of a High Pollution Advisory (HPA) or a Health Watch (HW), while the MCAQD provides monitoring data and designates No-Burn Days. In 2015, AMD continued to supply CP and meteorological data to the ADEQ forecasters on a daily basis. In 2015, we began supplying CP and meteorological data to MAG on a daily basis as well. Maricopa County’s Air Monitoring Website The department continued distributing 1-hour and 5-minute continuous CP data for the Maricopa County Interactive Pollution Map. The website provides each pollutant’s concentrations as well as AQI values. By having easy access to this information, the public can better plan their daily activities. EPA’s AIRNow Website The department continued distributing 1-hour and 5-minute continuous CP data for the EPA’s AIRNow website, which serves the same purpose as that of the Maricopa County’s website. Overview of the Air Monitoring Sites Maricopa County has a population of over 3.9 million people based on the 2012 U.S. Census estimate. As per 40 CFR Part 58, the EPA mandates the minimum quantity of monitors required by a pollutant’s network to properly represent the County’s population. As previously mentioned, the MCAQD pollutant networks are designed using the concept of spatial scale representativeness and monitoring objectives. This has resulted in CP networks that meet, and in most cases exceed, the minimum quantity of monitors required by EPA (see “Required General Information on Monitoring Network” in Appendix II). See Figure 1 for the site map. The following tables show details regarding each site’s MCAQD name and abbreviation, EPA’s AQS identification number, geographic coordinates, and the full complement of air monitors and/or sensors at each site. 2016 Air Monitoring Network Plan (June 29, 2017) Page 26 of 171 Table 6 shows the MCAQD’s site names, abbreviations, and the AQS identification number. Table 6. Monitoring Site Identification Information Name AMD Abbreviation AQS ID Blue Point BP 04-013-9702 Buckeye BE 04-013-4011 Cave Creek CC 04-013-4008 Central Phoenix CP 04-013-3002 Deer Valley DV 04-013-4018 Diablo DI 04-013-4019 Durango Complex DC 04-013-9812 Dysart DY 04-013-4010 Falcon Field FF 04-013-1010 Fountain Hills FH 04-013-9704 Glendale GL 04-013-2001 * Greenwood GR 04-013-3010 ** Higley HI 04-013-4006 Humboldt Mountain HM 04-013-9508 Mesa ME 04-013-1003 North Phoenix NP 04-013-1004 Pinnacle Peak PP 04-013-2005 Rio Verde RV 04-013-9706 South Phoenix SP 04-013-4003 South Scottsdale SS 04-013-3003 Tempe TE 04-013-4005 Thirty-Third TT 04-013-4020 West Chandler WC 04-013-4004 West 43 WF 04-013-4009 WP 04-013-0019 rd West Phoenix Zuni Hills ZH 04-013-4016 * This site discontinued operation permanently in June 2016. ** This site experienced an extended monitoring interruption in 2016. 2016 Air Monitoring Network Plan (June 29, 2017) Page 27 of 171 Table 7 shows the specific geographic coordinates for the location of each site. Table 7. Monitoring Site Locations Latitude Longitude Site AQS ID# Location BE 04-013-4011 33.37005 -112.62070 MC Hwy. 85 & AZ Hwy. 85 BP 04-013-9702 33.54549 -111.60925 Usery Pass & Bush Hwy. CC 04-013-4008 33.82169 -112.01739 32nd St. & Carefree Hwy. CP 04-013-3002 33.45793 -112.04601 19th St. & Roosevelt St. DV 04-013-4018 33.68462 -112.08635 10th Ave. & Deer Valley Rd. DC 04-013-9812 33.42650 -112.11814 27th Ave. & Durango St. DY 04-013-4010 33.63713 -112.34184 Bell Rd. & Dysart Rd. DI 04-013-4019 33.39625 -111.96797 Fairmont Dr. & Diablo Way FF 04-013-1010 33.45223 -111.73331 McKellips Rd. & Greenfield Rd. FH 04-013-9704 33.61103 -111.72529 E. Palisades Blvd. & Fountain Hills Blvd. GL 04-013-2001 33.57454 -112.19196 59th Ave. & W. Olive Ave. GR 04-013-3010 33.46093 -112.11748 27th Ave. & Interstate 10 HI 04-013-4006 33.30994 -111.72002 Higley Rd. & Williams Field Rd. HM 04-013-9508 33.98280 -111.79870 Top of Humboldt Mountain ME 04-013-1003 33.41045 -111.86507 Broadway Rd. & Alma School Rd. NP 04-013-1004 33.56033 -112.06626 7th St. & Dunlap Ave. PP 04-013-2005 33.70632 -111.85556 Alma School Rd. & Happy Valley Rd. RV 04-013-9706 33.71881 -111.67183 Forest Rd. & Del Ray Ave. SP 04-013-4003 33.40316 -112.07533 Central Ave. & Broadway Rd. SS 04-013-3003 33.47968 -111.91721 Scottsdale Rd. & Miller Rd. TE 04-013-4005 33.41240 -111.93473 College Ave. & Apache Blvd. TT 04-013-4020 33.46155 -112.12815 Interstate 10 & 33rd Ave. WC 04-013-4004 33.29898 -111.88431 Ellis St. & Frye Rd. WF 04-013-4009 33.40642 -112.14434 43rd Ave. & Broadway Rd. WP 04-013-0019 33.48385 -112.14257 39th Ave. & Earll Dr. ZH 04-013-4016 33.68673 -112.29417 109th Ave. & Deer Valley Rd. NOTE: HI – lat/long changed – new coordinates shown in italics Source: EPA AQS database – 2016 Site Description Report (AMP380) 2016 Air Monitoring Network Plan (June 29, 2017) Page 28 of 171 Figure 6 provides the complement of air monitoring instruments operating at each site in 2016. Figure 6. 2016 Air Monitoring Instruments by Site 2016 Air Monitoring Network Plan (June 29, 2017) Page 29 of 171 2016 SUMMARY OF NETWORK RESULTS AND REQUIRED INFORMATION Determining Data Quality and Acceptability This sections details the results obtained from our 2016 monitoring year. The EPA has established data quality and measurement quality objectives for CP data. In addition to 40 CFR Part 58, the EPA QA Handbook for Air Pollution Measurement Systems: “Volume II: Ambient Air Quality Monitoring Program provides extensive information regarding the quality system and its components. There are seven data quality indicators (DQI) established by the EPA to determine the quality of ambient air data. Data must meet each indicator’s requirement to be certified and acceptable for use by decision makers for NAAQS compliance determinations, researchers, and the public. These indicators are precision, bias, completeness, comparability, detectability, representativeness, and sensitivity. “Timeliness” of data collection, validation, and upload to AQS are important as well. “Accuracy” is now defined as a measure of the overall agreement of a measurement to a known value and includes a combination of random error (precision) and systematic error (bias) components of both sampling and analytical operations. The AMD’s personnel evaluate data using these indicators, with precision, bias, and completeness being the most crucial to evaluate on an ongoing basis. Data Completeness Before considering any data set valid, it must first pass a data recovery, or completeness, test. The test requirements begin with checking completeness at hourly and 24-hour concentration values. These values may be referred to as “samples”. The CP pollutant data measurements from continuous analyzers are based on a valid hour, while filter samples from manual samplers are based on a 24-hour sampling period from midnight to midnight. Equation 1 shows the calculation for the data completeness percentage, which is the quantity of valid measurements divided by the quantity of scheduled measurements multiplied by onehundred. For CP data, completeness must be greater than 75% for a data set to pass the first validity test. Furthermore, CP data completeness requirements may vary and use multiple levels of data aggregation, e.g., 1-hour, 3-hour, 8-hour, 24-hour, quarterly, annual, and multiple years. Equation 1: Qty. of Valid Measurements Data Completeness Percentage = Qty. of Measurements Scheduled (100) Table 8 shows the pollutant data completeness percentages for 2016. Table 8. 2016 Criteria Pollutant Data Completeness for SLAMS Pollutant CO Pb O3 NO2 SO2 Percent 98.2 90.0 99.7 97.8 99.0 Complete Source: EPA AQS database - 2016 Data Completeness Report (AMP430) 2016 Air Monitoring Network Plan (June 29, 2017) PM2.5 PM10 TOTAL 97.1 98.3 98.2 Page 30 of 171 Increasing Data Volumes Due to increasing data requirements and the availability of FEM analyzers, the amount of data the AMD produces increased considerably over the past few years. Operating and maintaining the various components of each air monitoring network is an ongoing challenge. To remain current with EPA’s requirements and to meet decision makers and researchers’ data needs, AMD personnel adjust standard operating procedures according to EPA’s latest requirements and/or guidance to ensure only high-quality data are being produced. In addition to the increased amount of CP data generated and managed, supporting components of the surveillance system such as the communications system to the sites and the database used for data management also need continuing upgrades. So far, AMD has managed to make significant program changes to keep up with the increasing demand for data. By automating some processes, we have been able to successfully respond to data needs without increases to personnel. The following information summarizes a few notable changes that have been implemented to date. • The commercial database, AirVision™, has enhanced our ability to manage the increase in data volume. It has helped to advance data validation and dissemination, as well as data retrieval/storage/security. The database must be maintained and updated regularly to keep up with software changes involving data collection, validation, and reporting to AQS. • AirVision™ also allows AMD personnel to perform multiple data checks throughout the workday to help prevent bad data from being released to the public via the County and EPA’s websites. In addition, it is used to upload preliminary data to the MC website as close as possible to real-time. • A Rapid Response Notification System (RRNS) was implemented to better manage quicklydeveloping pollution events. The RRNS uses automated alarms to monitor instrument performance and incoming pollutant concentrations. The triggering instrument warning and pollutant concentration levels can be adjusted as needed for each alarm. The AirVision™ database is programmed to automatically generate these alerts. Table 9 shows the amount of 1-hour data AMD has been producing per year, plus the near eightfold increase of data produced when AMD started collecting 5-minute data. Table 9. Approximate Amount of 2016 Data Produced Type 1-Hour CP Data 1-Hour CP and Met Data 1-Hour, 5-minute and 24hour CP and Met Data Amount 550,000 1,010,000 14,650,000 2016 Air Monitoring Network Plan (June 29, 2017) Page 31 of 171 Summary of 2016 Criteria Pollutant Data This section covers the 2016 data generated by each CP’s network. Carbon Monoxide (CO) Figure 7 shows the CO monitoring sites operating at the beginning of 2016. The CO monitors are designated as SLAMS except for Thirty-Third’s, which was designated as an SPM. In April, the quantity of CO monitors decreased from fourteen to thirteen after the Thirty-Third site’s SPM discontinued operation. In June, the quantity of CO monitors reduced to twelve after the Greenwood site’s CO monitor discontinued operation. Later, in September, the quantity further reduced to seven monitors after discontinuing operation of most seasonal CO monitors. The seasonal monitor at South Phoenix changed to year-round operation. The network is now comprised of seven year-round CO monitors. The EPA R9 approved of the changes to the SLAMS monitors and CO network before they were made. Figure 7. 2016 CO Monitoring Site Map 2016 Air Monitoring Network Plan (June 29, 2017) Page 32 of 171 There are two primary standard levels for CO: an 8-hour average of 9 ppm and a 1-hour average of 35 ppm. A violation of either standard is based on two exceedances in a calendar year. It is worth noting that the area has not exceeded the CO NAAQS since 1996. For 2016, the data from the CO monitors were reported to AQS, and the data are suitable for NAAQS comparison except for the data from the Dysart and ThirtyThird monitors. These monitors were discontinued prior to their scheduled QA performance evaluation. The Phoenix metropolitan area was once designated as being in moderate nonattainment for CO for the 1971 primary NAAQS. A nonattainment SIP was developed by ADEQ that covered how to reduce and maintain CO concentrations. The area failed to reach attainment by the end of 1995, which caused EPA to reclassify the area to serious nonattainment in 1996, with a new attainment date of December 31, 2000. In response, the Governor's Office, Legislature, Maricopa County, and other entities worked cooperatively to find ways to reduce CO that included implementing innovative programs such as a nationally recognized, enhanced vehicle emissions inspection program, a cleaner burning gasoline program, pollution reduction measures for commercial and industrial sources, and woodburning restrictions. As a result, CO concentrations declined and data showed that the area had reached attainment with the 8-hour primary NAAQS. In April 2005, the EPA redesignated the Phoenix metropolitan area to attainment for CO and approved the attainment demonstration and maintenance plan, which shows how the area will maintain compliance with the CO NAAQS through 2015. However, Maricopa County must continue to show that the air quality is maintaining compliance with the NAAQS for a period of 20 years from the attainment determination. The area is now covered by a 10-year maintenance SIP that is renewed in its 8th year for the next 10-year maintenance SIP. Since we are now in maintenance/attainment, the majority of CO monitors can operate seasonally rather than year-round. In 2016, the quantity of CO analyzers was reduced to from thirteen to seven SLAMS monitors. See the Summary of 2016 Network Modifications section for details concerning the changes made to the CO network. In 2016, no exceedances of the 1-hour or 8-hour CO NAAQS occurred at any MCAQD sites, and concentrations remained well below NAAQS levels. Since 1-hour CO concentrations have been significantly lower than the NAAQS level for many years, we have not included this metric on a table. Table 10 shows the maximum and second highest 8-hour CO averages measured. 2016 Air Monitoring Network Plan (June 29, 2017) Page 33 of 171 Table 10. 2016 8-hour CO Average Data Summary CO 8-hour Average CO 8-hour Average 2nd Site Max. Highest (ppm) (ppm) Buckeye 0.4 0.4 Central Phoenix 2.5 1.8 Diablo 1.5 1.5 *Dysart 0.5 0.5 *Glendale 1.7 1.2 *Greenwood 2.2 1.9 Mesa 1.5 1.5 *North Phoenix 1.2 1.0 **South Phoenix 2.3 1.6 *South Scottsdale 1.8 1.4 *Tempe 1.8 1.1 ***Thirty-Third 2.6 2.4 West Chandler 1.4 1.4 West Phoenix 3.2 2.4 * Discontinued SLAMS monitor ** SLAMS monitor sampling schedule changed to year-round *** SPM operated temporarily for 1st Quarter 2016 Source: EPA AQS database – 2016 Quicklook Criteria Report (AMP450) Table 11 shows additional CO information required by EPA. CBSA 38060 Source: Table 11. 2016 CO Data Required by EPA Population & Required NearActive Near-Road Census Year Road Monitors Monitors (2012) 4,329,534 U.S. Census 2012 2016 Air Monitoring Network Plan (June 29, 2017) 1 1 Additional NearRoad Monitors Needed 0 Page 34 of 171 Nitrogen Dioxide (NOx) Figure 8 shows the six NO2 monitoring sites operating in 2016. The quantity decreased from six to five when the Greenwood monitor’s operation discontinued in June. The NO2 monitors are designated as SLAMS. Data from the six monitors were reported to AQS, and the data are suitable for comparison to the NAAQS. Figure 8. 2016 NO2 Monitoring Site Map Maricopa County is in attainment for NO2. Compliance with the NO2 standard is achieved when the annual arithmetic mean concentration in a calendar year is less than or equal to 53 ppb. A new hourly standard for NO2 began in 2010; this regulation states that the 3-year average of the 98th percentile cannot exceed 100 ppb. Table 12 shows that no exceedances of the NO2 annual or 1-hour NAAQS were recorded at Maricopa County monitoring sites in 2016. 2016 Air Monitoring Network Plan (June 29, 2017) Page 35 of 171 Site Name Table 12. 2016 NO2 1-hour Data Summary NO2 NO2 NO2. 3-Year Average of Maximum 98th Percentile the 98th (ppb) (ppb) Percentiles (ppb) NO2 Annual Average (ppb) Buckeye 34.0 29.0 33.3 6.90 Central Phoenix 62.0 59.0 59.3 17.34 Diablo 61.0 54.0 55.3 21.47 Greenwood 62.0 59.0 61.3 22.07† Thirty-Third 77.0 63.0 63.5† 30.89 West Phoenix 66.0 54.0 55.3 16.24 † Data do not meet minimum summary data criteria. TT based on two years of data. Source: EPA AQS database - 2014 – 2016 Quicklook Criteria Report (AMP450) Currently, MCAQD is working with EPA R9 personnel to designate the “RA40” NO2 monitor, since Greenwood’s has served that purpose historically. We have suggested that the West Phoenix NO2 monitor would be a suitable choice. Additional information required by EPA is shown in Table 13. The annual average daily traffic (AADT) is based on 2011 modeling data. The maximum traffic count location is just south of the Broadway Curve, before Southern Avenue, on the I-10. CBS A Populatio n& Census Year (2012) 38060 4,329,534 Table 13. 2016 NO2 Data Required by EPA Require Active Additiona Require Max d NearNearl Neard AreaAADT Road Road Road Wide Count Monitor Monitor Monitors Monitor s s s Needed s 287,48 1 2016 Air Monitoring Network Plan (June 29, 2017) 2 2 0 1 Active AreaWide Monitor s Additiona l AreaWide Monitors Needed 4 0 Page 36 of 171 Ozone (O3) Figure 9 shows the eighteen O3 monitors operating during 2016. The O3 monitors are designated as SLAMS. The data were reported to AQS, and data are suitable for use with NAAQS comparisons. Figure 9. 2016 O3 Monitoring Site Map As stated in the O3 summary, compliance with the NAAQS is determined by averaging the fourth highest 8-hour average over a 3-year period. Currently, this 3-year average must be less than or equal to 0.070 ppm. In 2016, twenty-six days exceeded the new 2015 8-hour primary standard for O3. Table 14 presents the 2016 8-hour O3 data summary from MCAQD monitoring sites. There were eight violations of the 2015 8-hour primary standard. The 8-hour NAAQS is violated when a 3-year average using the fourth highest concentration measured in each year exceeds 0.070 ppm. 2016 Air Monitoring Network Plan (June 29, 2017) Page 37 of 171 Table 14. 2016 8-hour Average O3 Data Summary 8-hr Max. (ppm) 2nd Highest (ppm) 3rd Highest (ppm) 4th Highest (ppm) Qty. of Days > 0.070 ppm Blue Point 0.074* 0.073* 0.072* 0.071* 4 Buckeye 0.064 0.061 0.060 0.059 0 Cave Creek 0.073* 0.072* 0.071* 0.071* 5 Central Phoenix 0.072* 0.071* 0.071* 0.070 3 Dysart 0.069 0.067 0.064 0.063 0 Falcon Field 0.078* 0.077* 0.077* 0.073* 5 Fountain Hills 0.069 0.069 0.068 0.068 0 Glendale 0.071* 0.070 0.067 0.066 1 Humboldt Mt. 0.077* 0.073* 0.073* 0.072* 7 Mesa 0.079* 0.076* 0.075* 0.075* 14 North Phoenix 0.078* 0.076* 0.076* 0.075* 11 Pinnacle Peak 0.076* 0.075* 0.074* 0.074* 11 Rio Verde 0.075* 0.072* 0.071* 0.070 3 South Phoenix 0.071* 0.070 0.068 0.067 1 South Scottsdale 0.075* 0.075* 0.072* 0.070 3 Tempe 0.071* 0.069 0.068 0.068 1 West Chandler 0.072* 0.071* 0.071* 0.069 3 West Phoenix 0.073* 0.073* 0.071* 0.071* 6 Site * Indicates an exceedance of the standard Source: EPA AQS database -– 2016 Quicklook Criteria Report (AMP450) and 2016 Maximum Values Report (AMP440) 2016 Air Monitoring Network Plan (June 29, 2017) Page 38 of 171 Table 15 shows additional information required by EPA. Table 15. 2016 O3 Data Required by EPA CBSA 38060 County Maricopa Population & Census Year (2012) 4,329,534 3-Year Design Value 0.077 ppm 3-Year Design Value Site MCAQD Max 8-Hour Concentration MCAQD Max Concentration for Site MSA Max 8-Hour Concentration MSA Max Concentration Site Required Monitors Active Monitors 04-013-2005 (Pinnacle Peak – MCAQD) 0.079 ppm 04-013-1003 (Mesa – MCAQD) 0.079 ppm 04-013-1003 (Mesa – MCAQD) 3 18 Additional Monitors Needed 0 Source: EPA AQS database – 2016 Design Value Report (AMP480) and 2016 Quicklook Criteria Report (AMP450) 2016 Air Monitoring Network Plan (June 29, 2017) Page 39 of 171 Lead (Pb) Figure 10 shows the Deer Valley site, which is the only site monitoring for Pb. Two Pb monitors are required at the Deer Valley Airport for QA purposes and both monitors are designated as SLAMS. The data were reported to AQS, and data are suitable for use with NAAQS comparisons. Figure 10. 2016 Pb Monitoring Site Map In July 2010, this Pb monitoring site opened near the Deer Valley Airport in north Phoenix. This airport is one of the busiest general aviation airports in the region, and it serves a significant number of propellerdriven aircraft, which still use Pb-containing general aviation fuel unlike jet engine-driven aircraft. The primary and secondary Pb NAAQS standards are identical. The rolling 3-month average is violated by an exceedance of 0.15 µg/m3. Table 16 shows a summary of the 2016 Pb data required by EPA. 2016 Air Monitoring Network Plan (June 29, 2017) Page 40 of 171 Table 16. 2016 Pb Data Summary Max. 3-month Rolling Number 24-hour 2nd Highest 3 Quarterly Average Site of 24-hour Max. (µg/m ) (µg/m3) Samples (µg/m3) Deer Valley 0.073 0.072 0.05 58 Source: EPA AQS database – 2016 Quicklook Criteria Report (AMP450) According to the 2011 EPA’s National Emission Inventory, Deer Valley Airport remains the largest pointsource of Pb within Maricopa County that triggers the EPA 1.0 ton per year (tpy) threshold for Pb emissions, which are shown on Table 17. Table 17. 2016 Pb Data Required by EPA Source Name 2011 Emissions Pb Inventory Location Emission Source & (tpy) Data Year Deer Valley Airport Phoenix, AZ 1.16 General Aviation Airport 2011 Max 3-Month Design Value (g/ m3) Design Value Date Required Monitors Active Monitors Additional Monitors Needed 0.05 December 2016 1 1 0 Sources: The EPA 2011 National Emissions Inventory (NEI) Report EPA AQS database -– 2016 Design Value Report (AMP480) 2016 Air Monitoring Network Plan (June 29, 2017) Page 41 of 171 Particulate Matter ≤10 Micrometers (PM10) Figure 11 shows the sixteen PM10 monitors operating during 2016. The quantity of PM10 monitors reduced from sixteen to fifteen when Greenwood’s monitor discontinued operation in June. The PM10 monitors are designated as SLAMS, and data are suitable for comparison to the NAAQS. Figure 11. 2016 PM10 Monitoring Site Map All PM10 monitoring stations operate continuous PM10 analyzers that collect hourly-averaged data. It is worth noting that EPA does not require PM10 analyzers to be collocated at the PQAO level or the national level. The PM10 NAAQS are violated when the expected number of exceedances at a monitor is more than one per year on average over three years. The expected number of exceedances for a site is estimated using a formula provided in 40 CFR Part 50 Appendix K. The formula takes into account the number of days sampling occurs and the number of valid samples that can be collected. A 3-year average of these estimated days is then used to determine compliance. Effective December 18, 2006, EPA revoked the PM10 annual primary standard; however, the annual weighted average is displayed for informational purposes (see Table 18). In recent years, some PM10 exceedances occurring in the Maricopa County CBSA have been successfully attributed to an EE. Again, as per the EPA’s EER, an EE is an uncontrollable event that was caused by 2016 Air Monitoring Network Plan (June 29, 2017) Page 42 of 171 natural sources of pollution or an event that is not expected to recur at a given location. ADEQ makes the determination of which events to classify as exceptional; then, they submit documentation to EPA supporting the contention that the exceedance(s) was due to an EE. If EPA R9 concurs, the PM10 concentrations measured during the event are not used to determine compliance with the NAAQS. The EE counts below are current as of this review’s publishing. Table 18 shows the 2016 PM10 24-hour NAAQS status and data summary, including EE data values. Site Name Buckeye Table 18. 2016 PM10 24-Hour Data Summary Including EE Data 24-hr Avg. 24-hr Avg. Annual 24-hour Expected Max 2nd High Weighted Avg. Quantity NAAQS Exceedances of EEs Exceedances (µg/m3) (µg/m3) (µg/m3) 153 134 0 0 40.2 0 Central Phoenix 106 102 0 0 32.6 0 Durango Complex 112 109 0 0 33.0 0 Dysart 173 126 1 1 28.8 1 Glendale 180 161 2 2 22.1 2 Greenwood 108 105 0 0 40.8† 0 Higley Mesa Note: No data available due to this site remaining temporarily closed in 2016. 100 97 0 0 21.1 0 141 76 0 0 20.7 0 130 85 0 0 31.1 0 South Scottsdale 115 113 0 0 28.2 0 Tempe 77 71 0 0 21.8 0 134 123 0 0 29.7 0 174 127 1 1 46.9 1 172 138 1 1 28.9 1 26.5 1 North Phoenix South Phoenix West Chandler West 43rd Avenue West Phoenix Zuni Hills 174 140 1 1 † Data do not meet completeness criteria. Source: EPA AQS database - 2016 Quicklook Criteria Report (AMP450) 2016 Air Monitoring Network Plan (June 29, 2017) Page 43 of 171 Table 19 shows additional information required by EPA. Data include measurements submitted as EEs. Table 19. 2016 PM10 Data Required by EPA CBSA 38060 County Maricopa Population & Census Year (2012) 4,329,534 MCAQD Max 24-Hour Concentration MCAQD Max Concentration for Site MSA Max 24-Hour Concentration MSA Max Concentration Site Required Monitors Active Monitors Additional Monitors Needed Source: EPA AQS database - 2016 Quicklook Criteria Report (AMP450) 2016 Air Monitoring Network Plan (June 29, 2017) 180 µg/m3 04-013-2001 (Glendale) 1,367 µg/m3 04-021-3015 (Stanfield - PCAQCD) 6-10 16 0 Page 44 of 171 Particulate Matter ≤2.5 Micrometers (PM2.5) Figure 12 shows the nine PM2.5 sites operating during 2016. All PM2.5 monitors, except for the Thirty-Third’s monitor, are designated as SLAMS. The Thirty-Third monitor was designated as a SPM, because it temporarily supported the PM2.5 winter chemical speciation study. The quantity of monitors decreased from nine to eight in April after the Thirty-Third SPM was discontinued. The PM2.5 monitoring network is representative of “area-wide” air quality in respect to fine particulate with the exception of the monitor at Diablo, which is a near-road monitoring site. At Diablo, the PM2.5 monitor collects source-oriented emissions from vehicular traffic and represents the microscale. Data were reported to AQS, and data are suitable for comparison to the NAAQS. Figure 12. 2016 PM2.5 Monitoring Site Map Each PM2.5 sites operates a continuous FEM monitor that provides hourly concentration data used for NAAQS comparison. The West Phoenix site remains our “collocated” site for PM2.5, which means that we operate one FEM continuous analyzer designated as the “primary monitor” and one FRM filter-based PM2.5 sampler designated as the “secondary monitor”. The FRM sampler collects a filter sample every 12 days for QA purposes. The secondary monitor is required to meet the EPA’s QA collocation requirements for the PM2.5 network. 2016 Air Monitoring Network Plan (June 29, 2017) Page 45 of 171 The EPA may reference data from the secondary monitor to better evaluate air quality in the area. In addition, to the secondary monitor’s data being used for QA purposes, if necessary, the data can be substituted for the primary monitor’s data as per 40 CFR Part 50 Appendix N. This secondary monitor collects a 24-hour, e.g., midnight-to-midnight, filter sample on the designated 1:12 day schedule as required for collocated QA samples. The EPA OAQPS produces the annual sampling calendar each year and posts it on the AMTIC website. Maricopa County is currently in attainment for PM2.5. The MCAQD continually assesses the existing network to ensure it adequately represents air quality in Maricopa County with regard to PM2.5. To determine compliance with the annual PM2.5 NAAQS requires that three years of the 24-hour annual average data be used from each monitor. To determine compliance with the 24-hour NAAQS requires that three years of the 98th percentile data be used from each PM2.5 monitor. For data to be acceptable for comparison to the annual and the 24-hour NAAQS, a site’s PM2.5 monitor must meet all EPA-required operating and QA criteria. 2016 PM 2.5 Data Summary Table 20 summarizes the 2016 data from the primary monitors only. Site Name Diablo Durango Complex Glendale Table 20. 2016 PM2.5 24-Hour and Annual Averages 2016 2016 2016 24-hr Avg. Max 24-hr Avg. 2nd High 98th Percentile (µg/m3) (µg/m3) Value (µg/m3) 62.7* 22.3 16.6 2016 Annual Avg. (µg/m3) 7.8 64.2* 39.4* 22.7 9.4 113.9* 40.8* 17.7 6.7 Mesa 83.0* 18.3 14.0 6.7 North Phoenix 52.2* 20.4 16.3 6.4 South Phoenix 108.0* 28.7 22.8 8.4 Tempe 59.2* 20.5 14.9 6.8 Thirty-Third 119.1* 30.0 30.0 13.5† 23.8 8.7 West Phoenix 152.1* 33.7 * Indicates an exceedance of the standard. † Indicates that the mean does not satisfy data completeness criteria Source: EPA AQS database - 2016 Quicklook Criteria Report (AMP450) 2016 Air Monitoring Network Plan (June 29, 2017) Page 46 of 171 The Annual PM2.5 NAAQS Status Compliance with the primary and secondary annual NAAQS is determined by averaging three consecutive years of a site’s annual mean value using the 24-hour, or daily, concentrations. The annual PM2.5 NAAQS is met when three-year annual average concentration is less than or equal to 12.0 µg/m3 at each eligible monitoring site. All 3-year averages were below the annual NAAQS. Table 21 summarizes the 3-year 24hour annual average data. Site Name Table 21. PM2.5 3-Year Annual Averages 2014 2015 2016 Annual Avg. Annual Avg. Annual Avg. (µg/m3) (µg/m3) (µg/m3) 3-Year Annual Avg. (µg/m3) Diablo 9.71† 7.86 7.89 7.87† Durango Complex 10.12 8.97 9.48 9.52 Glendale 7.73 7.0 6.75 7.16 Mesa 8.28 6.68 6.75 7.23 North Phoenix 8.02 6.73 6.47 7.07 South Phoenix 10.27 8.99 8.45 9.23 Tempe 8.63 8.88† 6.84 7.73† *Thirty-Third Not operating 10.48† 13.58† 12.03† West Phoenix 10.9 8.6 8.78 9.42 † Indicates that the mean does not satisfy data completeness criteria. * Monitor only operated from January to March in 2016 Source: EPA AQS database - 2014 – 2016 Design Value Report (AMP450) 2016 Air Monitoring Network Plan (June 29, 2017) Page 47 of 171 2015 24-Hour PM2.5 NAAQS Status Compliance with the primary and secondary 24-hour PM2.5 NAAQS is determined by averaging 3consecutive years of the 24-hour 98th percentile concentration values from all eligible sites. The 24-hour NAAQS is met when 3-year average concentration values is less than or equal to 35 µg/m3. In 2015, there were three exceedance days, but no violations of the primary or secondary 24-hour NAAQS of 35 µg/m3. Table 22 summaries the 3-year 24-hour 98th percentile data from the FEM analyzers. Table 22. PM2.5 3-Year 24-Hour Averages of the 98th Percentile 2014 2015 2016 th th th Site Name 98 Percentile 98 Percentile 98 Percentile (µg/m3) (µg/m3) (µg/m3) Diablo 21.4† 17.0 16.6 3-Year Average 98th Percentile (µg/m3) 18.3 Durango Complex 24.1 27.1 22.7 24.6 Glendale 18.6 18.9 17.7 18.4 Mesa 19.4 16.6 14.0 16.6 North Phoenix 20.3 17.8 16.3 18.1 South Phoenix 26.5 27.7 22.8 25.6 Tempe 17.4 16.9† 14.9 16.4 *Thirty-Third Not operating 34.0† 30.0† 32.0† 23.8 26.7 West Phoenix 28.9 27.5 † Indicates that the mean does not satisfy data completeness criteria. * Monitor operated from January to March in 2016 only Source: EPA AQS database - 2016 Design Value Report (AMP480) Table 23 shows additional information required by EPA. The PM2.5 annual and daily design values include any measurements submitted as an EE for EPA’s concurrence. In 2016, there were no EEs submitted for PM2.5 exceedances. Maricopa County operates more than the required minimum number of PM2.5 monitors for the core-based statistical area (CBSA). 2016 Air Monitoring Network Plan (June 29, 2017) Page 48 of 171 Table 23. 2016 PM2.5 Data Required by EPA CBSA 38060 County Maricopa Population & Census Year (2012) 4,329,534 Annual Design Value Annual Design Value Site 24-Hour Design Value 24-Hour Design Value Site MCAQD Max 24-Hour Concentration MCAQD Max Concentration for Site MSA Max 24-Hour Concentration MSA Max Concentration Site Required Monitors Active Monitors 9.5 µg/m3 04-013-9812 (Durango Complex – MCAQD) 27 µg/m3 04-013-0019 (West Phoenix – MCAQD) 152.1 µg/m3 04-013-0019 (West Phoenix – MCAQD) 152.1 µg/m3 04-013-0019 (West Phoenix – MCAQD) 3 8 Additional Monitors Needed 0 Source: EPA AQS database - 2016 Design Value Report (AMP480) and 2016 Quicklook Criteria Report (AMP450) 2016 Air Monitoring Network Plan (June 29, 2017) Page 49 of 171 Sulfur Dioxide (SO2) Figure 13 shows the two SO2 SLAMS monitors operating in 2016. The data were reported to AQS, and the data are suitable for NAAQS comparison. Figure 13. 2016 SO2 Monitoring Site Map Sulfur dioxide has a 1-hour primary standard and a 3-hour secondary standard. The 24-hour and annual average standards were revoked in a June 2010 rulemaking. A violation of the primary standard occurs when the 3-year average of the 99th percentile of the daily maximum 1-hour average exceeds 75 ppb. A violation of the secondary standard occurs when a 3-hour average of 500 ppb is exceeded more than once per year. Maricopa County is in attainment for SO2. For calendar year 2016, no exceedances of the SO2 1-hour or 3-hour standard were recorded at Maricopa County monitoring sites. The EPA now requires that the highest 5-minute average per hour per day be reported to AQS; however, there is not a 5-minute SO2 NAAQS level. The EPA no longer requires the reporting of 3-hour values for the SO2 secondary NAAQS. Table 24 shows the 2016 SO2 data summary. 2016 Air Monitoring Network Plan (June 29, 2017) Page 50 of 171 Table 24. 2016 SO2 Data Summary 1-hour Max. (ppb) 1-hour 2nd High (ppb) Central Phoenix 8 7 1-hour 99 Percentile (ppb) 6 Durango Complex 8 8 7 Site th Source: EPA AQS database – 2016 Quicklook Criteria Parameters Report (AMP450) The minimum required quantity of SO2 monitors operating within the MCAQD’s network is based on either the Population Weighted Emissions Index (PWEI) and/or the EPA R9 Administrator’s input (see 40 CFR Part 58 - Appendix D 4.4.3). Table 25 shows additional information required by EPA. CBSA County 38060 Maricopa Table 25. 2016 SO2 Data Required by EPA Population Total SO2 Population & Census Emitted Weighted Required Year in 2011 Emission Monitors (2012) (tpy) Index 4,329,534 1468 6355 0 Active Monitors Additional Monitors Needed 2 0 Source: The EPA’s Clearinghouse for Inventories & Emissions Factors (CHIEF) database 2016 Air Monitoring Network Plan (June 29, 2017) Page 51 of 171 2016 NAAQS Exceedances and Violation Summary Table 26 summarizes the 2016 NAAQS exceedances and violations. Table 26. 2016 NAAQS Exceedances and Violation Summary Pollutant NAAQS Status CO No exceedances or violations of the 1-hour or 8-hour primary NAAQS occurred. NO2 No exceedances or violations of the 1-hour primary NAAQS or the annual primary / secondary NAAQS occurred. O3 On twenty-six unique days, at least one monitor exceeded the new 2015 8-hour primary / secondary NAAQS. Eight violations of the 2015 8-hour primary / secondary NAAQS occurred. Pb No exceedances or violations of the 3-month primary / secondary NAAQS occurred. PM10 On six unique days, at least one monitor exceeded the 24-hour primary / secondary NAAQS, but no sites violated the NAAQS. PM2.5 On three unique days, at least one monitor exceeded the 24-hour primary / secondary NAAQS. No violation of the annual primary / secondary NAAQS occurred. SO2 No exceedances or violations of the 1-hour NAAQS occurred. 2016 Ozone Exceedance and Violation Information Figure 14 shows the dates and concentrations for the 2015 primary and secondary 8-hour O3 NAAQS exceedances. The NAAQS level of 0.070 ppm for a rolling 8-hour average, and an exceedance occurs when the 8-hour average is greater than 0.07 ppm, e.g., 0.071 ppm or higher. 2016 Air Monitoring Network Plan (June 29, 2017) Page 52 of 171 Figure 14. 2016 O3 Exceedance Days 2016 Air Monitoring Network Plan (June 29, 2017) Page 53 of 171 A site violates the O3 NAAQS when its 3-year average of the 4th-highest annual 8-hour concentration exceeds 0.070 ppm. Data shown below are the 2014 to 2016 3-year averages of the fourth highest 8-hour O3 concentrations. The concentrations shown include the June 20, 2015 O3 data that has been flagged as an EE. Figure 15 shows a graph of the 2008 O3 violations from 2016. 0.090 0.080 2016 Violation of 2008 Ozone NAAQS (>0.075ppm) as of 12/31/16 0.076 0.077 0.070 0.060 0.050 2016 3yr Avg 4th high (NAAQS) 0.040 Standard < 0.075ppm 0.030 0.020 0.010 0.000 BE BP CC CP DY FF FH GL HM ME NP PP RV SP SS TE WC WP Figure 15. 2016 O3 Violations based on 2008 NAAQS If we compare the 2014 – 2016 data to the newly lowered O3 NAAQS of 0.070 ppm, then eight sites violated the 2015 O3 NAAQS as shown on Figure 16. The concentrations shown include the June 20, 2015 O3 data that has been flagged as an EE. The EPA must concur with EE demonstration packages for before omitting data from NAAQS comparisons. 2016 Air Monitoring Network Plan (June 30, 2017) Page 54 of 171 2016 Violation of 2015 Ozone NAAQS (>0.070ppm) as of 12/31/16 0.090 0.076 0.080 0.0720.071 0.073 0.073 0.077 0.075 0.073 0.070 0.060 0.050 Est. 2016 3yr Avg 4th high (NAAQS) Standard 0.070ppm 0.040 0.030 0.020 0.010 0.000 BE BP CC CP DY FF FH GL HM ME NP PP RV SP SS TE WC WP Figure 16. 2016 O3 Violations based on 2015 NAAQS 2016 Air Monitoring Network Plan (June 29, 2017) Page 55 of 171 2016 Particulate Matter Exceedances, Violations, and Exceptional Event Status 2016 PM10 NAAQS Exceedances Table 27 shows the site and date of PM10 exceedances that occurred in 2016. Again, a PM10 exceedance is based on a 24-hour sample from midnight-to-midnight. An EE package has been or is being developed and submitted to EPA for the six exceedances shown below. Table 27. 2016 PM10 24-hour NAAQS Exceedances Dysart Site Glendale West 43rd Avenue West Phoenix Zuni Hills Date 05/17/16 09/27/16 09/28/16 04/25/16 01/01/16 07/29/16 24-hour Avg. PM10 Concentration (µg/m3) 173 180 161 174 172 174 Exceptional Event * * * * * * Quantity of Days in 2016 where at least one 6 monitor exceeded the 24-hr PM10 Standard * MCAQD flagged this exceedance as an EE in AQS. Source: EPA AQS database – 2016 Maximum Values Report (AMP440) 2016 PM10 NAAQS Violation Status Including Exceptional Event Data As per 40 CFR Part 50.6 (a), a site violates the primary and/or secondary 24-hour PM10 NAAQS when the calculated “rate of expected exceedances” is greater than one (> 1) when averaged over three consecutive years. Table 28 includes EE data and shows the three-year 24-hour maximum PM10 averages, the calculation of expected exceedances for each year, and the calculation of three-year average for the rate of expected exceedances. If the EPA does not concur with the demonstration packages submitted for 2014 and 2016, then, in 2016, the Glendale site will violate the PM10 NAAQS. Please note that the EPA has yet to determine concurrence or not with the 2014 and 2016 EE demonstration package submittals. 2016 Air Monitoring Network Plan (June 29, 2017) Page 56 of 171 Table 28. 2016 Violations of the PM10 24-Hour NAAQS Including EE Data Site Buckeye 2014 24-hr Expected Max. Exceedances (µg/m3) 24-hr Max. (µg/m3) 2015 Expected Exceedances 24-hr Max. (µg/m3) 2016 3-Yr. Avg. Rate of Expected Expected Exceedances Exceedances 271‡ 2.0 124 0 153 0 0.66 182‡ 1.0 114 0 106 0 0.33 172‡ 2.0 100 0 112 0 0.66 Dysart 163‡ 1.0 99 0 173‡ 1 0.33 Glendale 205‡ 1.011 78 0 180‡ 2.022 1.01 Greenwood 208‡ 2.011 106 0 108† 0 0.67 Higley 179‡ 2.0 Not Operating Not Applicable Not Operating Not Applicable 0.66† Mesa 155‡ 1.034 66 0 100 0 0.34 199‡ 1.0 79 0 141 0 0.33 170‡ 3.0 86 0 130 0 1.0 193‡ 2.045 86 0 115 0 0.68 Tempe 175‡ 1.011 52† 0† 77 0 0.33† West Chandler 163‡ 1.0 121 0 134 0 0.33 West 43rd 171‡ 1.0 132 0 174‡ 1 0.66 West Phoenix 210‡ 2.022 72 0 172‡ 1 0.67 Zuni Hills 166‡ 1.247 81 0 174‡ 1 0.74 Central Phoenix Durango Complex North Phoenix South Phoenix South Scottsdale ‡ † Indicates value was flagged as an EE Indicates <75% data available, i.e., does not meet data completeness requirements Source: EPA AQS database - 2014 - 2016 – Quicklook All Parameters Report (AMP450NC) 2016 Air Monitoring Network Plan (June 29, 2017) Page 57 of 171 2016 24-Hour PM10 NAAQS Violation Status Excluding Exceptional Event Data The ADEQ submitted EE packages to EPA R9 for the six PM10 exceedance days that occurred in 2016. There were no exceedance days in 2015 at Maricopa County sites. If the EPA concurs with all of the EE demonstration packages submitted for 2014 and 2016, the number of sites that violate the PM10 NAAQS in 2016 will be zero. Data holding EE concurrence are not included when determining compliance with the NAAQS. Table 29 excludes the 2014 and 2016 PM10 data considered the result of an EE, regardless of the EPA’s concurrence status. Table 29. 2016 Violations of the PM10 NAAQS Excluding Data Flagged as an EE 2014 135 0 107 2016 3-Yr. Avg. Rate of Expected Expected Exceedances Exceedances 0 0.33 Expected Exceedances 0 114 0 106 0 0 0 100 0 112 0 0 90 0 99 0 126 0 0 Glendale 86 0 78 0 131 0 0 Greenwood 125 0 0 0† 137 0 0† 0† 0† Mesa North Phoenix South Phoenix South Scottsdale Tempe West Chandler West 43rd Avenue West Phoenix Zuni Hills 101 0 0 108† Not Operating 100 0† Higley 106 Not Operating 66 0 0 107 0 79 0 141 0 0 109 0 86 0 130 0 0 98 0 86 0 115 0 0 88 0 52† 0† 77 0 0† 146 0 121 0 134 0 0 121 0 132 0 127 0 0 148 0 72 0 138 0 0 86 0 81 0 140 0 0 † Expected Exceedances 1.00 24-hour Max. (µg/m3) 124 2015 24-hour Max. (µg/m3) 153 Site Buckeye Central Phoenix Durango Complex Dysart 24-hour Max. (µg/m3) 175 Indicates < 75% data available, i.e., does not meet data completeness requirements EPA AQS database - 2016 Maximum Values Report (AMP440) Source: 2016 Air Monitoring Network Plan (June 29, 2017) Page 58 of 171 2016 24-Hour PM2.5 NAAQS Exceedances and Violation Status The 24-hour primary and secondary NAAQS for PM2.5 are 35 µg/m3. If the 24-hour, midnight-to-midnight block-average concentration at a site is 35.5 µg/m3 or higher, then it is counted as an exceedance. If the 24hour 3-year average of the 98th percentile exceeds 35 µg/m3, then the 24-hour NAAQS are violated. Table 30 shows there were three exceedance days in 2016 for PM2.5; but there were no violations. Site Table 30. 2016 PM2.5 Exceedances 24-hr Avg. PM2.5 Concentration Date (µg/m3) Diablo 01/01/16 62.7 01/01/16 64.2 03/16/16 36.4 01/01/16 113.9 07/22/16 40.8 Mesa 01/01/16 83.0 North Phoenix 01/01/16 52.2 South Phoenix 01/01/16 108.0 Tempe 01/01/16 59.2 Thirty-Third 01/01/16 119.1 West Phoenix 01/01/16 152.1 Durango Complex Glendale Number of Days where at least one monitor exceeded the 24-hour PM2.5 Standard 2016 Air Monitoring Network Plan (June 29, 2017) 3 Page 59 of 171 Summary of 2016 Network Modifications This section reports on the network modifications made in 2016 as well as any future network modifications the MCAQD would like to make or must make for various reasons. Most modifications will require prior approval by EPA R9. The MCAQD’s AMD strives to provide the most reliable and relevant air monitoring data to the public. Air quality issues are diverse and are of great interest to the citizens of Maricopa County. High-quality data are a cornerstone of developing and implementing effective SIPs, EE packages, and permits for new and existing sources. The 2015 AMNP included several network modifications mostly due to the completion of the 2015 assessment. Summary of the 2015 Network Assessment Recommendations In 2015, the MCAQD completed the second 5-Year Network Assessment as required by 40 CFR Part 58. The assessment evaluated the performance of the monitoring network for the years 2010 – 2014. The assessment identified refinements to the air monitoring network, and potential changes for all the CP networks, except for Pb. Some of the recommendations made in the assessment were included in the 2015 AMNP. Those were: • discontinuing CO monitoring at seven sites due to the network being adequate to represent current CO concentrations (Dysart, Glendale, Greenwood, North Phoenix, South Phoenix, South Scottsdale, and Tempe); • discontinuing the PM10 and NO2 monitoring at Greenwood due to pollutants being adequately represented by nearby monitor sites, specifically at West Phoenix, West 43rd, and Thirty-Third; • discontinuing O3 monitoring at Rio Verde due to O3 being adequately represented by nearby monitor sites, specifically at Fountain Hills, Pinnacle Peak, and Yuma Frank (Fort McDowell); and, • updating the site type and/or scales of representativeness classifications. Following EPA approval, the MCAQD made the proposed network modifications above except for discontinuing the CO monitoring at South Phoenix and the O3 monitoring at Rio Verde. The CO monitor at South Phoenix remains in-place and now operates on a year-round schedule. In addition, the seasonal CO monitors at Buckeye and Mesa also changed to a year-round monitoring schedule. This year, we are again proposing to discontinue O3 monitoring at Rio Verde. Supporting information regarding the changes made in the past year follows. For CO, EPA R9 approved discontinuing the CO monitoring at the proposed sites except at South Phoenix, which changed to a year-round monitoring schedule. The change did not compromise the CO network from meeting 40 CFR Part 58, Appendix D requirements. The affected monitors closed May 1, 2016 following spring CO season. The CO monitoring site changes were supported because the monitors closed were: • attaining the 1971 1-hour and 8-hour CO NAAQS from 2011 through 2015; • not specifically required by an attainment or maintenance plan; and, • had less than a 10% probability of exceeding 80% of the NAAQS during the next three years, e.g., 2016 - 2018. For the Greenwood site (04-013-3010), the PM10 and NO2 monitoring was discontinued in June 2016 due these pollutants being adequately represented by nearby monitoring sites. 2016 Air Monitoring Network Plan (June 29, 2017) Page 60 of 171 For the site type/objective and spatial scales of representativeness, these changes did not require EPA R9 approval. Therefore, we made the proposed changes as shown below and on the 2016 Site Metadata Tables in Appendix II. A. Changes Made to Site Types/Objectives 1) CO a. West Phoenix from 'Population Exposure' to 'Highest Concentration' b. Buckeye from 'Population Exposure' to 'Upwind Background' 2) NO2 Buckeye from 'Population Exposure' to 'Upwind Background' 3) O3 a. North Phoenix from 'Population Exposure' to 'Max Ozone Concentration' b. Fountain Hills from 'Max Ozone Concentration' to 'Population Exposure' c. Humboldt Mountain from 'Max Ozone Concentration' to 'Extreme Downwind' d. Buckeye from 'Population Exposure' to 'Upwind Background' Durango Complex from 'Highest Concentration' to 'Population Exposure' 4) PM10 B. Changes Made to Monitoring Scales (Spatial Scale Represented) Buckeye from 'Neighborhood' to 'Urban' 1) O3 2) PM2.5 Durango Complex from 'Middle' to 'Neighborhood' 3) PM10 Durango Complex from 'Middle' to 'Neighborhood' Additional 2016 Monitor and/or Site Information The Higley site (04-013-4006) has not been operating since November 4, 2014 due to the property owner asking us to vacate the property. In 2016, the AMD secured use of the new site with the property owner. The new location is cattycorner to the old location and close enough geographically to use the same AQS site identification number. The site build-out commenced, but was not complete before the end of 2016. The site opened at its new location on March 21, 2017. For the West Chandler site (04-013-4004), in the past few plans we had mentioned that the property owner had indicated that they needed us to vacate the property. The MCAQD is not currently anticipating a change for this site location, because the property use is not a problem currently. Proposed Network Modifications For the Rio Verde site (04-013-9706), this year’s plan is again proposing to discontinue monitoring for O3 at this site. The MCAQD would like to secure approval from EPA R9 for this network modification in 2017. For the MCAQD monitoring network, EPA requested that we work with other MOs within the MSA/CBSA to develop a shared monitoring agreement as specified by EPA R9. This is to ensure that each pollutant’s network is adequately represented throughout Maricopa and Pinal Counties, which is the MSA/CBSA geographical area. We will begin working with the state/local/tribal MOs in the area in 2017 to develop this agreement. 2016 Air Monitoring Network Plan (June 29, 2017) Page 61 of 171 Information Regarding Maricopa County’s Supplementary Air Monitoring Programs Personnel who work mobile monitoring and emergency response meet the Hazardous Waste Operations and Emergency Response Standard (HAZWOPER) training and medical monitoring requirements as per the U.S. Occupational Safety and Health Administration (OSHA) 29 CFR 1910.120. Personnel attend an annual refresher training to remain certified. The Mobile Monitoring Program The department received approval in late 2006 from the Maricopa County Board of Supervisors to start a “mobile monitoring” program. This program enables us to better respond to emergencies affecting air quality, to identify sources of air pollutants by performing localized air monitoring, and to collect and analyze hazardous air pollutant (HAP) samples. In addition, the program allows us to assist the Maricopa County Air Quality Compliance and Enforcement Division (MCAQCED) with the investigation and enforcement of air pollution regulations. In 2016, the mobile monitoring unit did not respond to any air quality emergencies throughout Maricopa County such as heavy smoke from fires or toxic releases that threatened air quality. Rapid Response Notification System (RRNS) Maricopa County enjoys many days with clean air; however, there are days when PM10, PM2.5, or O3 pollution levels approach or exceed the NAAQS. In particular, PM10 and PM2.5 concentrations can build up quickly due to a high wind speed or a fire, respectively. Curtailing PM pollution from natural events is challenging; it requires advance planning and implementation of control mechanisms to reduce the likelihood of an exceedance. However, anthropogenic activities that cause high PM concentrations near a site can often be addressed. If a quickly developing PM event is not addressed, it could result in a NAAQS exceedance that may have been avoidable. To help reduce PM concentrations, the MCAQD implemented an automated alarm system that triggers email notifications and/or telephone calls to subscribers when concentrations of PM10 and PM2.5 escalate. Subscribers include, but are not limited to: MCAQD’s compliance and air monitoring personnel as well as industrial source representatives who can take action to reduce PM emissions caused by their work activities. The AirVision™ database is programmed to trigger alerts for elevated PM10 five-minute and hourly concentrations, and high PM2.5 five-minute concentrations. Immediately following an hourly or five-minute PM concentration surpassing an assigned notification level, a high importance alert is sent out via email, text, and/or telephone to employees, stakeholders, and/or customers. In addition, Maricopa County enforces a “no burn restriction” when a PM2.5 High Pollution Advisory (HPA) is issued by ADEQ. 2016 Air Monitoring Network Plan (June 29, 2017) Page 62 of 171 The RRNS serves as a tool to manage high pollution events using a three-part system: 1. dissemination of as near real-time as possible air quality data to the community; 2. a notification system to alert MCAQD personnel, stakeholders, and customers of a pollution problem; and, 3. onsite response from department inspectors and stakeholders to identify and discourage pollution activity and to reduce the risk of pollution impacts. The alerts requests that dust control permit holders inspect their sites as soon as possible and employ Best Available Control Measures to stabilize all disturbed soils to reduce blowing dust following the notification. The MCAQCED inspectors also review the data and current circumstances, make site visits, or take other appropriate actions to help stop PM concentrations from increasing. To better expedite response actions, meteorological data such as wind speed and direction are also available in five-minute increments. There are little to no immediate actions that can be taken to reduce high concentrations of gaseous CPs. Currently, no RRNS triggers have been established for gaseous pollutants. In general, gaseous pollutant concentrations are decreased through planning and implementing long-term emission controls on sources. Depending on local sources of gaseous pollutants, it may be feasible to have a source stop operating at such times to reduce emissions. For instance, SO2 is prone to spiking during certain industrial activities, and at such a time, temporarily shutting down an operation may be a viable control measure. Although a shortterm increase or spike may occur for a particular gas, we rarely see them unless they are associated with outof-the-ordinary activities near the site. Emergency Response The MCAQD is equipped to respond to certain air quality emergencies throughout Maricopa County upon request. In responding to emergencies, MCAQD has a wide variety of specialized equipment to assess air quality and meteorological conditions. These include several specially equipped trailers and a large selfpowered van equipped with CP monitors and meteorological instruments. In addition, AMD has purchased several portable monitors, including a FTIR to monitor air toxics and an Area-Rae system to monitor chlorine and ammonia. Winter Burning Study For the 2016 - 2017 winter season, additional PM2.5 and PM2.5 speciation monitors were deployed with the following questions in mind: • What are the contributing factors, e.g., sources, of the high PM2.5 values at the Durango, South Phoenix, and West Phoenix sites? • What is the geographical extent of the high PM2.5 values? • How much does fireplace burning contribute to PM2.5 levels? Study information and conclusions will be available in late 2017. 2016 Air Monitoring Network Plan (June 29, 2017) Page 63 of 171 Information Regarding Additional Air Monitoring within Maricopa County The ADEQ operates its own air monitoring surveillance system within the State of Arizona, which includes the JLG Supersite in central Phoenix. The JLG Supersite is part of the national air monitoring surveillance system and numerous SLAMS monitors operate there. In addition, ADEQ collects research data for other air monitoring programs at both the JLG Supersite and MCAQD’s South Phoenix site. The research data support EPA’s several air monitoring programs that include, but are not limited to: identifying airborne air toxics and ozone precursors, identifying the chemical composition of PM2.5, and measuring visual haze. Specifically, ADEQ performs air monitoring in Maricopa County for the Chemical Speciation Network (CSN), the Interagency Monitoring of Protected Visual Environments (IMPROVE), the National Air Toxics Trends Stations (NATTS), the National Core multi-pollutant monitoring stations (NCORE), the Photochemical Assessment Monitoring Stations (PAMS), and the Urban Air Toxics Monitoring Program (UATMP). They also operate visibility cameras and meteorological monitors within the County. Occasionally, ADEQ may temporarily use other sites for special projects. For more information about ADEQ’s network, consult the ADEQ Air Quality Division’s website. 2016 Air Monitoring Network Plan (June 29, 2017) Page 64 of 171 REFERENCES 1. The eCFR Title 40, Parts 50, 53, and 58 2. EPA Criteria Pollutant Information: https://www.epa.gov/criteria-air-pollutants 3. EPA NAAQS Information: https://www.epa.gov/criteria-air-pollutants/naaqs-table 4. EPA AirNow webpage: http://airnow.gov/ 5. EPA AQS AirData website: http://www.epa.gov/airdata 6. EPA OAQPS QA Webpage: https://www3.epa.gov/ttn/amtic/qalist.html 7. EPA Exceptional Events webpage: https://www.epa.gov/air-quality-analysis/treatment-data-influencedexceptional-events 8. EPA Region 9 Air Program Information: http://www.epa.gov/region9/air/index.html 9. Arizona SIP Information: http://www.azdeq.gov/environ/air/plan/index.html 10. ADEQ Natural and Exceptional Events Information: https://www.azdeq.gov/environ/air/plan/nee.html 11. MCAQD Online Interactive Air Quality Map: http://alert.fcd.maricopa.gov/alert/Google/v3/air.html 12. MCAQD Prior Annual Monitoring Plans and Network Assessments: http://www.maricopa.gov/1669/Air-Monitoring-Network-Plans-Assessments 13. MCAQD Dusts Sources, Control and Training: https://www.maricopa.gov/1913/Dust-Sources-Control-and-Training 2016 Air Monitoring Network Plan (June 29, 2017) Page 65 of 171 APPENDIX I – 2016 AIR MONITORING DATA BY SITE Site information includes photographs, site type and spatial scale, and population represented. 2016 Air Monitoring Network Plan (June 29, 2017) Page 66 of 171 Blue Point (BP) (04-013-9702) Site Location: Bush Hwy. & Usery Pass Rd., Maricopa County Spatial Scale: Urban Site Type: Max. O3 Conc. Site Description: The Blue Point site began operating in July 1995. It is located in a Maricopa County Sheriff’s Sub-Station in Tonto National Forest. This site represents the maximum O3 concentration and urban-scale downwind transport conditions. This site is located approximately 40 miles east of the Phoenix metropolitan area. This SLAMS location monitors for O3. Meteorological monitors operating at this site include ambient temperature and wind speed/direction. 2014 Max. 8-hr O3 Avg. (ppm) 0.088* O3 Number of O3 Daily Exceedances 2 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.075 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard # Indicates a violation of the standard 2016 Air Monitoring Network Plan (June 29, 2017) 2015 2016 0.077* 0.074* 2 4 0.074 0.072# 2014 and 2015 data Page 67 of 171 Buckeye (BE) (04-013-4011) Site Location: AZ Hwy. 85 & MC Hwy. 85, Buckeye Spatial Scale: Neighborhood for CO, O3, and PM10 and Urban for NO2 Site Type: Population Exposure Site Description: The Buckeye site was established on August 1, 2004. The site is located in the Maricopa County Department of Transportation - Southwest Facility. The immediate area is agriculture and encroaching residential development. This SLAMS location monitors for CO seasonally, NO2, O3, and PM10. Meteorological monitors operating at this site include ambient temperature, barometric pressure, relative humidity, and wind speed/direction. 2014 2015 2016 Max. 8-hr CO Avg. (ppm) 0.6 0.5 0.6 CO Number of 8-hr CO Exceedances 0 0 0 Annual NO2 Avg. (ppb) 8.65 7.14 6.90 NO2 NO2 1-hr Avg. 98th Percentile (ppb) 37.0 34.0 29.0 Max. 8-hr O3 Avg. (ppm) 0.068 0.064 0.064 O3 Number of O3 Daily Exceedances 0 0 0 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.062 0.060 0.059 3 Max. 24-hr PM10 Avg. (µg/m ) 271*‡ 124 153 PM10 Number of 24-hr PM10 Exceedances 2 0 0 3 Annual PM10 Avg. (µg/m ) 43.4 34.4 40.2 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the 2014 and 2015 data represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard ‡ Indicates EEs at this site – listed value is the highest official current AQS reading 2016 Air Monitoring Network Plan (June 29, 2017) Page 68 of 171 Cave Creek (CC) (04-013-4008) Site Location: 32nd St. & Carefree Hwy., Cave Creek Spatial Scale: Urban Site Type: Max. O3 Conc. Site Description: The Cave Creek site began operating in August 2001. It is located in the Maricopa County Cave Creek Recreation Area (Park Office). This site was chosen through discussions on modifying the O3 network for the 2008 8-hr O3 standard. This SLAMS location only monitors for O3. Meteorological monitors operating at this site include ambient temperature, barometric pressure, rain, relative humidity, and wind speed/direction. 2014 Max. 8-hr O3 Avg. (ppm) 0.081* O3 Number of O3 Daily Exceedances 2 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.074 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard # Indicates a violation of the standard 2016 Air Monitoring Network Plan (June 29, 2017) 2015 2016 0.072 0.073* 0 5 0.071 0.071# 2014 and 2015 data Page 69 of 171 Central Phoenix (CP) (04-013-3002) Site Location: 19th St. & Roosevelt St., Phoenix Spatial Scale: Neighborhood Site Type: Population Exposure for CO, O3, and PM10 Highest Concentration for NO2 and SO2 Site Description: The Central Phoenix site has been in existence for over five decades and has provided a long-term historical database with a high rate of data recovery. The site is representative of high population exposure (greater than 5000 people per square mile) in the central Phoenix area. This SLAMS location monitors for CO, PM10, NO2, O3, and SO2. Meteorological monitors operating at this site include ambient temperature, barometric pressure, and wind speed/direction. 2014 2015 2016 Max. 8-hr CO Avg. (ppm) 2.5 2.0 2.0 CO Number of 8-hr CO Exceedances 0 0 0 Annual NO2 Avg. (ppb) 19.44 17.85 17.34 NO2 th NO2 1-hour Average 98 Percentile (ppb) 60.0 59.0 59.0 Max. 8-hr O3 Avg. (ppm) 0.077* 0.075 0.072* O3 Number of O3 Daily Exceedances 1 0 3 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.074 0.072 0.070 3 Max. 24-hr PM10 Avg. (µg/m ) 182*‡ 114 106 PM10 Number of 24-hr PM10 Exceedances 1 0 0 3 Annual PM10 Avg. (µg/m ) 32.0 26.2 32.6 th SO2 1-hour 99 Percentile (ppb) 7.0 7.0 6.0 SO2 Number of SO2 Exceedances 0 0 0 Annual SO2 Avg. (ppb) 1.28 1.04 0.58 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the 2014 and 2015 data represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard # Indicates a violation of the standard ‡ Indicates EEs at this site – listed values is the highest official current AQS reading 2016 Air Monitoring Network Plan (June 29, 2017) Page 70 of 171 Deer Valley (DV) (04-013-4018) Site Location: 7th Ave. & Deer Valley Rd. Spatial Scale: Middle Site Type: Source-Oriented Site Description: The Deer Valley site is located on the grounds of the Deer Valley Airport in north Phoenix. This site was started in July 2010, because changes in the Pb NAAQS necessitated that MCAQD begin Pb monitoring once again. All ambient Pb monitoring had been discontinued in 1997, because concentrations were consistently much lower than the NAAQS at that time. The source of Pb emissions is the general aviation fuels used in the propeller-driven aircraft, and Deer Valley Airport is one of the busiest general aviation airports in Maricopa County. This SLAMS location monitors for Pb only. Meteorological monitors operating at this site include ambient temperature, barometric pressure, relative humidity, and wind speed/direction. Max. 24-hr Pb Avg. (µg/m ) Number of Pb 24-hr Exceedances (> 0.15 µg/m3) Pb Max.3-month Rolling Quarterly Average (µg/m3) 3 Pb 2016 Air Monitoring Network Plan (June 29, 2017) 2014 0.087 0 0.05 2015 0.104 0 0.05 2016 0.073 0 0.05 Page 71 of 171 Diablo (DI) (04-013-4019) Site Location: Fairmont Dr. & Diablo Way Spatial Scale: Micro Site Type: Source-Oriented Site Description: The Diablo site was the first near-road air monitoring site established by MCAQD on the west side of the I-10 highway just south of the Fairmont/Diablo Way intersection. There is a concrete barrier between the highway and the frontage road, offering safety, and we have erected a secure shelter for housing the monitoring instruments. In February 2014, we began reporting CO and NO2 data, with PM2.5 data soon following in May 2014. This SLAMS location monitors for CO, NO2, and PM2.5. Meteorological monitors operating at this site include ambient temperature, relative humidity, and wind speed/direction. 2014 Max. 8-hr CO Avg. (ppm) 1.4 CO Number of 8-hr CO Exceedances 0 Annual NO2 Avg. (ppb) 20.83 NO2 th NO2 1-hr Avg. 98 Percentile (ppb) 59.0 3 Max. 24-hr PM2.5 Avg. (µg/m ) 29.2† Number of 24-hr PM2.5 Exceedances 0 PM2.5 3 Annual PM2.5 Avg. (µg/m ) 9.71† th 3 PM2.5 98 Percentile Value (µg/m ) 21.4† † < 75% data completeness due to May startup (238 daily observations in 2014) 2016 Air Monitoring Network Plan (June 29, 2017) 2015 1.6 0 21.41 53.0 22.5 0 7.86 17.0 2016 1.5 0 21.47 54.0 62.7 0 7.89 16.6 Page 72 of 171 Durango Complex (DC) (04-013-9812) Site Location: 27th Ave & Durango St., Phoenix Spatial Scale: Neighborhood Site Type: Highest Concentration Site Description: This site is located in the Maricopa County Flood Control District storage yard. Monitoring began on January 6, 1999 with the intent to replace the old maximum highest concentration site. However, in 2000 the EPA determined that the site is not equivalent to that old site, which prompted the establishment of a new highest concentration site (West 43rd). This SLAMS location monitors for PM10, PM2.5, and SO2. Meteorological monitors operating at this site include ambient temperature, barometric pressure, relative humidity, and wind speed/direction. Max. 24-hr PM10 Avg. (µg/m ) PM10 Number of 24-hr PM10 Exceedances Annual PM10 Avg. (µg/m3) Max. 24-hr PM2.5 Avg. (µg/m3) Number of PM2.5 24-hr Exceedances PM2.5 Annual PM2.5 Avg. (µg/m3) 98th Percentile PM2.5 Value (µg/m3) SO2 1-hour 99th Percentile (ppb) SO2 Number of SO2 Exceedances Annual SO2 Avg. (ppb) * Indicates an exceedance of the standard ‡ Indicates EEs at this site 3 2016 Air Monitoring Network Plan (June 29, 2017) 2014 172*‡ 2 42.1 56.4* 1 10.12 24.1 8.0 0 0.87 2015 100 0 26.3 32.4 0 8.97 27.1 9.0 0 1.04 2016 112 0 33.0 64.2 2 9.48 22.7 7.0 0 0.45 Page 73 of 171 Dysart (DY) (04-013-4010) Site Location: Bell Rd. & Dysart Rd., Surprise Spatial Scale: Neighborhood Site Type: Population Exposure Site Description: The Dysart site was established in July 2003. It is located at the Maricopa County Facility Maintenance Yard at the corner of Bell Rd. and Dysart Rd. The site is in a growing population area in the northwest valley. The land use around the site consists of subdivisions of single family homes, commercial, and industrial. The location is approximately one mile west of the Agua Fria riverbed. This SLAMS location monitors for CO seasonally, O3, and PM10. Meteorological monitors operating at this site include: ambient temperature, barometric pressure, relative humidity, and wind speed/direction. 2014 Max. 8-hr CO Avg. (ppm) 0.6 CO Number of 8-hr CO Exceedances 0 Max. 8-hr O3 Avg. (ppm) 0.075 O3 Number of Daily O3 Exceedances 0 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.072 3 Max. 24-hr PM10 Avg. (µg/m ) 163*‡ PM10 Number of 24-hr PM10 Exceedances 1 3 Annual PM10 Avg. (µg/m ) 26.7 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard ‡ Indicates EEs at this site 2016 Air Monitoring Network Plan (June 29, 2017) 2015 2016 0.7 0.5 0 0 0.069 0.069 0 0 0.070 0.066 99 173*‡ 0 1 22.4 28.2 2014 and 2015 data Page 74 of 171 Falcon Field (FF) (04-013-1010) Site Location: Greenfield & McKellips Rd., Mesa Spatial Scale: Neighborhood Site Type: Population Exposure Site Description: Monitoring began in June of 1989. The site is located at a fire station near an airfield within a growing residential area. This SLAMS location monitors for O3 only. Meteorological monitors operating at this site include ambient temperature, relative humidity, and wind speed/direction. 2014 Max. 8-hr O3 Avg. (ppm) 0.088* O3 Number of O3 Daily Exceedances 4 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.074 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard # Indicates a violation of the standard 2016 Air Monitoring Network Plan (June 29, 2017) 2015 2016 0.084* 0.078* 3 5 0.075 0.073# 2014 and 2015 data Page 75 of 171 Fountain Hills (FH) (04-013-9704) Site Location: Fountain Hills Blvd. & Palisades Blvd., Fountain Hills Spatial Scale: Neighborhood Site Type: Max. Ozone Conc. Site Description: The site is located at a Fountain Hills fire station, and it became operational in April of 1996. The site is located approximately 15 miles downwind from the Phoenix metropolitan area and represents the high downwind O3 concentrations on the fringes of the central basin district along the predominant summer/fall daytime wind direction. The site was shutdown from August 27, 2013 through May 14, 2014 for complex renovation. This SLAMS location monitors for O3 only. Meteorological monitors operating at this site include ambient temperature, barometric pressure, relative humidity, and wind speed/direction. 2014 Max. 8-hr O3 Avg. (ppm) 0.075† O3 Number of O3 Daily Exceedances 0 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.071† Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard # Indicates a violation of the standard † < 75% data completeness (223 valid daily observations in 2014) 2016 Air Monitoring Network Plan (June 29, 2017) 2015 2016 0.075 0.069 0 0 0.069 0.068 2014 and 2015 data Page 76 of 171 Glendale (GL) (04-013-2001) Site Location: 59th Ave. & Olive Ave., Glendale Spatial Scale: Neighborhood Site Type: Population Exposure Site Description: The site is located on the grounds of Glendale Community College in a populous residential area. Homes, various strip malls, food establishments, and parks surround the site. This SLAMS location monitors for CO seasonally, O3, PM10, PM2.5. Meteorological monitors operating at this site include ambient temperature, barometric pressure, relative humidity, and wind speed/direction. 2014 Max. 8-hr CO Avg. (ppm) 1.4 CO Number of 8-hr CO Exceedances 0 Max. 8-hr O3 Avg. (ppm) 0.079* O3 Number of O3 Daily Exceedances 2 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.074 3 Max. 24-hr PM10 Avg. (µg/m ) 205*‡ PM10 Number of 24-hr PM10 Exceedances 1 3 Annual PM10 Avg. (µg/m ) 27.4 3 Max. 24-hr PM2.5 Avg. (µg/m ) 50.0* Number of 24-hr PM2.5 Exceedances 1 PM2.5 3 Annual PM2.5 Avg. (µg/m ) 7.73 th 3 PM2.5 98 Percentile Value (µg/m ) 18.6 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard ‡ Indicates EEs at this site 2016 Air Monitoring Network Plan (June 29, 2017) 2015 2016 1.6 1.7 0 0 0.071 0.071* 0 1 0.070 0.068 78 180*‡ 0 2 18.3 22.1 26.9 113.9* 0 2 6.96 6.75 18.9 17.7 2014 and 2015 data Page 77 of 171 Greenwood (GR) (04-013-3010) Site Location: 27th Ave. & I-10, Phoenix Spatial Scale: Middle Site Type: Population Exposure Site Description: Monitoring began at this site in December 1993 and ended in June 2016. The station was bordered by I-10, homes, and the Greenwood Cemetery. Interstate-17 is approximately one mile to the east of where the site was located. This SLAMS location monitored for CO, NO2, and PM10. Meteorological monitors operated at this site included ambient temperature, barometric pressure, and wind speed/direction. 2014 Max. 8-hr CO Avg. (ppm) 2.6 CO Number of 8-hr CO Exceedances 0 Annual NO2 Avg. (ppb) 24.55 NO2 th NO2 1-hour Average 98 Percentile (ppb) 64.0 3 Max. 24-hr PM10 Avg. (µg/m ) 208*‡ PM10 Number of 24-hr PM10 Exceedances 2 3 Annual PM10 Avg. (µg/m ) 44.0 Note: Air monitoring at the Greenwood site ended on June 19, 2016. * Indicates an exceedance of the standard ‡ Indicates EEs at this site - listed value is the highest official current AQS reading. † < 75% data completeness (169 valid daily observations in 2016) 2016 Air Monitoring Network Plan (June 29, 2017) 2015 2.4 0 21.91 61.0 106 0 34.8 2016 2.2† 0 22.07† 59.0† 108† 0 40.8† Page 78 of 171 Higley (HI) (04-013-4006) Site Location: Higley Rd. & Williams Field Rd., Gilbert Spatial Scale: Neighborhood Site Type: Population Exposure Site Description: Originally, in 1994, ADEQ setup this site to monitor for background particulate concentrations near the urban limits of Maricopa County. Since then, urban expansion has enveloped the site, so it no longer serves its original intended purpose. The AMD has monitored for PM10 since the second quarter of 2000. This is a neighborhood scale station with a monitoring type of high population exposure. The Roosevelt Water District asked us to remove the site from their property by end 2014, because they could no longer house the station. The station’s operation was temporarily discontinued on November 4, 2014 while a new location was identified. After receiving EPA approval for the new location, the AMD began build-out of the new site in 2016. The new site’s physical location is just NE of the old location, and the same AQS site identification number can be used. This SLAMS location will commence monitoring for PM10 once the move is completed in early 2017. Meteorological monitors that will operate at this site include: ambient temperature, barometric pressure, delta T, and wind speed/direction. Max. 24-hr PM10 Avg. (µg/m ) Number exceedances 24-hr PM10 3 PM10 Annual PM10 Avg. (µg/m3) *Indicates an exceedance of the standard ‡Indicates EEs at this site 2016 Air Monitoring Network Plan (June 29, 2017) 2014 179*‡ 2 34.8 2015 2016 Not Operating Not Operating Page 79 of 171 Humboldt Mountain (HM) (04-013-9508) Site Location: Humboldt Mountain Summit Spatial Scale: Regional Site Type: Max. O3 Conc. Site Description: This site became operational in August 1995. The Humboldt Mountain site is located on Federal Aviation Agency property, in a National Forest Service building within the Tonto National Forest. This site is located approximately 40 miles north-northeast of the Phoenix metropolitan area at an elevation of 5190 feet. This SLAMS location monitors for O3 only. Meteorological monitors operating at this site include ambient temperature and relative humidity. 2014 2015 2016 Max. 8-hr O3 Avg. (ppm) 0.082* 0.076* 0.077* O3 Number of O3 Daily Exceedances 3 1 7 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.075 0.073 0.073# Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the 2014 and 2015 data represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard # Indicates a violation of the standard 2016 Air Monitoring Network Plan (June 29, 2017) Page 80 of 171 Mesa (ME) (04-013-1003) Site Location: Broadway Rd. & Brooks Ave., Mesa Spatial Scale: Neighborhood Site Type: Population Exposure Site Description: This site is located at the City of Mesa - Brooks Reservoir, which is located in an area that contains residential, commercial, and industrial properties. In December 2012, following a ten-month site construction by the City of Mesa, the site began operation again with new continuous PM10, PM2.5, and O3 monitors. This SLAMS location monitors for CO seasonally, O3, PM10, and PM2.5. Meteorological monitors operating at this site include ambient temperature, barometric pressure, relative humidity, and wind speed/direction. 2014 2015 Max. 8-hr CO Avg. (ppm) 4.2 1.5 CO Number of 8-hr CO Exceedances 0 0 Max. 8-hr O3 Avg. (ppm) 0.086* 0.082* O3 Number of O3 Daily Exceedances 6 4 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) NA 0.078# 3 Max. 24-hr PM10 Avg. (µg/m ) 155*‡ 66 PM10 Number of 24-hr PM10 Exceedances 1 0 3 Annual PM10 Avg. (µg/m ) 30.4 17.2 3 Max. 24-hr PM2.5 Avg. (µg/m ) 33.9 23.2 Number of 24-hr PM2.5 Exceedances 0 0 PM2.5 3 Annual PM2.5 Avg. (µg/m ) 8.02 6.68 th 3 PM2.5 98 Percentile Value (µg/m ) 20.3 16.6 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the 2014 and represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard # Indicates a violation of the standard 2016 Air Monitoring Network Plan (June 29, 2017) 2016 1.5 0 0.079* 14 0.076# 100 0 21.1 83.0* 1 6.75 14.0 2015 data Page 81 of 171 North Phoenix (NP) (04-013-1004) Site Location: 7th St. & Butler Ave., Phoenix Spatial Scale: Neighborhood Site Type: Population Exposure Site Description: This site is located in the Sunnyslope area of North Phoenix. The site is surrounded by residential and commercial properties. This SLAMS location monitors for CO seasonally, O3, and PM10, PM2.5. Meteorological monitors operating at this site include ambient temperature, delta T (temperature inversion), barometric pressure, solar radiation, and wind speed/direction. 2014 2015 2016 Max. 8-hr CO Avg. (ppm) 1.4 1.4 1.2 CO Number of 8-hr CO Exceedances 0 0 0 Max. 8-hr O3 Avg. (ppm) 0.082* 0.078* 0.078* O3 Number of O3 Daily Exceedances 6 2 11 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.080# 0.077# 0.075# 3 Max. 24-hr PM10 Avg. (µg/m ) 199*‡ 79 141 PM10 Number of 24-hr PM10 Exceedances 1 0 0 3 Annual PM10 Avg. (µg/m ) 27.9 18.5 20.7 3 Max. 24-hr PM2.5 Avg. (µg/m ) 33.9 21.4 52.2* Number of 24-hr PM2.5 Exceedances 0 0 1 PM2.5 3 Annual PM2.5 Avg. (µg/m ) 8.02 6.73 6.47 th 3 PM2.5 98 Percentile Value (µg/m ) 20.3 17.8 16.3 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the 2014 and 2015 data represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard # Indicates a violation of the standard ‡ Indicates EEs at this site – listed value is the highest official current AQS reading 2016 Air Monitoring Network Plan (June 29, 2017) Page 82 of 171 Pinnacle Peak (PP) (04-013-2005) Site Location: Alma School & Happy Valley Rd., Scottsdale Spatial Scale: Urban Site Type: Max. O3 Conc. Site Description: The site is located in a geographic area of low-density population (less than 2500 people per square mile). In the current and previous years, O3 exceedances have been recorded due to transport of O3 and precursors from more urbanized areas of metropolitan Phoenix. This SLAMS location monitors for O3 only. Meteorological monitors operating at this site include ambient temperature, barometric pressure, relative humidity, and wind speed/direction. 2014 2015 2016 Max. 8-hr O3 Avg. (ppm) 0.088* 0.083* 0.076* O3 Number of O3 Daily Exceedances 6 4 11 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.078# 0.078# 0.077# Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the 2014 and 2015 data represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard # Indicates a violation of the standard 2016 Air Monitoring Network Plan (June 29, 2017) Page 83 of 171 Rio Verde (RV) (04-013-9706) Site Location: Forest Rd. & Del Ray Ave., Rio Verde Spatial Scale: Urban Site Type: Max. O3 Conc. Site Description: This site has been in operation since the spring of 1997. The monitor is located at the fire station / County Sheriff’s Office Sub-Station located in a residential area surrounded by the desert of Tonto National Forest. The site is on the edge of a Class I Wilderness Area. This SLAMS location monitors for O3 only. No meteorological monitors operate at this site. 2014 Max. 8-hr O3 Avg. (ppm) 0.085* O3 Number of O3 Daily Exceedances 2 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.072 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard 2016 Air Monitoring Network Plan (June 29, 2017) 2015 0.070 0 0.071 2014 and 2016 0.075* 3 0.070 2015 data Page 84 of 171 South Phoenix (SP) (04-013-4003) Site Location: Central Ave. & Broadway Rd., Phoenix Spatial Scale: Neighborhood Site Type: Population Exposure Site Description: The site has operated at its current location since October 1999. The site borders a mixture of high population density residential and commercial properties. This SLAMS location monitors for CO seasonally, O3, PM10, and PM2.5. Meteorological monitors operating at this site include ambient temperature, barometric pressure, relative humidity, and wind speed/direction. 2014 Max. 8-hr CO Avg. (ppm) 2.0 CO Number of 8-hr CO Exceedances 0 Max. 8-hr O3 Avg. (ppm) 0.080* O3 Number of O3 Daily Exceedances 2 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.075 3 Max. 24-hr PM10 Avg. (µg/m ) 170*‡ PM10 Number of 24-hr PM10 Exceedances 3 3 Annual PM10 Avg. (µg/m ) 40.6 3 Max. 24-hr PM2.5 Avg. (µg/m ) 101.7* Number of 24-hr PM2.5 Exceedances 1 PM2.5 3 Annual PM2.5 Avg. (µg/m ) 10.27 th 3 PM2.5 98 Percentile value (µg/m ) 26.5 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard ‡ Indicates EEs at this site. 2016 Air Monitoring Network Plan (June 29, 2017) 2015 2.1 0 0.073 0 0.072 86 0 25.5 44.6 2 8.99 27.7 2014 and 2016 2.3 0 0.071* 1 0.070 130 0 31.1 108.0* 1 8.45 22.8 2015 data Page 85 of 171 South Scottsdale (SS) (04-013-3003) Site Location: Thomas Rd. & Miller Rd., Scottsdale Spatial Scale: Neighborhood Site Type: Population Exposure Site Description: The South Scottsdale site is located at a City of Scottsdale fire station. The area surrounding the site is residential with a density of 2500 to 5000 persons per square mile. Previously, SO2 was monitored here, but was discontinued in 2010 due to extremely low values being recorded. The SO2 monitor was moved to the DC site, which is closer to SO2 point sources. In addition, NO2 was monitored here, but this was discontinued in 2011. The last year for reporting NO2 data in the ANMP was 2014. This SLAMS location monitors for CO seasonally, O3, and PM10. Meteorological monitors operating at this site include ambient temperature, barometric pressure, relative humidity, and wind speed/direction. 2014 Max. 8-hr CO Avg. (ppm) 1.4 CO Number of 8-hr CO Exceedances 0 Max. 8-hr O3 Avg. (ppm) 0.078* O3 Number of O3 Daily Exceedances 1 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.075 3 Max. 24-hr PM10 Avg. (µg/m ) 193*‡ PM10 Number of 24-hr PM10 Exceedances 2 3 Annual PM10 Avg. (µg/m ) 31.0 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard ‡ Indicates EEs at this site 2016 Air Monitoring Network Plan (June 29, 2017) 2015 2016 1.4 1.8 0 0 0.074 0.075* 0 3 0.071 0.070 86 115 0 0 24.1 28.2 2014 and 2015 data Page 86 of 171 Tempe (TE) (04-013-4005) Site Location: Apache Blvd. & College Ave., Tempe Spatial Scale: Neighborhood Site Type: Population Exposure Site Description: The site began operating in 2000 and it is located near the ASU Tempe Campus. The site is surrounded by residential homes, some high-density residential properties, and a railroad track. In spring 2015, the site was temporarily shutdown due to the owner, Arizona Public Service – a power provider, needing to make infrastructure upgrades to the site. This SLAMS location monitors for CO seasonally, O3, PM10, and PM2.5. Meteorological monitors operating at this site include ambient temperature, delta T (temperature inversion), rain, and wind speed/direction. 2014 Max. 8-hr CO Avg. (ppm) 1.4 CO Number of 8-hr CO Exceedances 0 Max. 8-hr O3 Avg. (ppm) 0.077* O3 Number of O3 Daily Exceedances 1 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.071 3 Max. 24-hr PM10 Avg. (µg/m ) 175*‡ PM10 Number of 24-hr PM10 Exceedances 1 3 Annual PM10 Avg. (µg/m ) 28.7 3 Max. 24-hr PM2.5 Avg. (µg/m ) 44.0* Number of 24-hr PM2.5 Exceedances 1 PM2.5 3 Annual PM2.5 Avg. (µg/m ) 8.63 th 3 PM2.5 98 Percentile Value (µg/m ) 17.4 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard ‡ Indicates EEs at this site 2016 Air Monitoring Network Plan (June 29, 2017) 2015 2016 1.4 2.0 0 0 0.055 0.071* 0 1 0.064 0.063 52 77 0 0 18.4 21.8 19.1 59.2* 0 1 8.88 6.84 16.9 14.9 2014 and 2015 data Page 87 of 171 Thirty-Third (TT) (04-013-4020) Site Location: Interstate-10 & 33rd Ave., Phoenix Spatial Scale: Neighborhood Site Type: Source-Oriented Site Description: The Thirty-Third site was the second near-road air monitoring site established by MCAQD on the south side of the I-10 highway just east of 33rd Avenue. The site is oriented on an eastwest highway and is located about three meters (midway) downslope from 33rd Avenue toward the I-10. It is assessable from the frontage road, offering safety, and we have erected a secure shelter for housing the monitoring instruments. In September 2015, we began reporting CO, NO2, and PM2.5 data. The only SLAMS monitor is NO2; the CO and PM2.5 were SPMs. The SPMs collected CO and PM2.5 data from September through March 2016 to support the wintertime speciation study. Meteorological monitors operating at this site include ambient temperature and wind speed/direction. 2014 Max. 8-hr CO Avg. (ppm) Number of 8-hr CO Exceedances Annual NO2 Avg. (ppb) NO2 NO2 1-hr 98th Percentile Avg. (ppb) Not Operating Max. 24-hr PM2.5 Avg. (µg/m3) Number of 24-hr PM2.5 Exceedances PM2.5 Annual PM2.5 Avg. (µg/m3) PM2.5 98th Percentile Value (µg/m3) † < 75% data completeness (~ 90 valid daily observations in 2016) CO 2016 Air Monitoring Network Plan (June 29, 2017) 2015 2.8† 0 31.86 64.0 35.3 0 10.48† 34.0 2016 2.6† 0 30.89 63.0 119.1 1 13.58† 30.0 Page 88 of 171 West Chandler (WC) (04-013-4004) Site Location: Frye Rd. & Ellis St., Chandler Spatial Scale: Neighborhood (CO and O3), Middle (PM10) Site Type: Population Exposure Site Description: This site was established in January 1995. A wide range of land uses surrounds the site including residential, agriculture, and heavy industry (semiconductor manufacturing plants and liquid air storage). This SLAMS location monitors for CO seasonally, O3, and PM10. Meteorological monitors operating at this site include ambient temperature, barometric pressure, relative humidity, and wind speed/direction. 2014 Max. 8-hr CO Avg. (ppm) 1.7 CO Number of 8-hr CO Exceedances 0 Max. 8-hr O3 Avg. (ppm) 0.074 O3 Number of O3 Daily Exceedances 0 th 3-year 8-hr Avg. O3 of 4 Highest Value (ppm) 0.071 3 Max. 24-hr PM10 Avg. (µg/m ) 163*‡ PM10 Number of 24-hr PM10 Exceedances 1 3 Annual PM10 Avg. (µg/m ) 29.3 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard ‡ Indicates EEs at this site 2016 Air Monitoring Network Plan (June 29, 2017) 2015 2016 1.6 1.4 0 0 0.072 0.072* 0 3 0.070 0.069 121 134 0 0 23.7 29.7 2014 and 2015 data Page 89 of 171 West 43rd Avenue (WF) (04-013-4009) Site Location: 43rd Ave. & Broadway Rd., Phoenix Spatial Scale: Middle Site Type: Highest Concentration Site Description: Monitoring began at the site in the 2nd quarter of 2002. This site is located at a Maricopa County Department of Transportation storage lot and is surrounded by a combination of heavy industry and residential homes. The main purpose of the site is to measure maximum PM10 concentration. The sources around the site include sand and gravel operations, automobile and metal recycling facilities, landfills, paved and unpaved haul roads, and cement casting. This SLAMS location monitors for PM10. Meteorological monitors operating at this site include ambient temperature, barometric pressure, delta T (temperature inversion), and wind speed/direction. Max. 24-hr PM10 Avg. (µg/m ) PM10 Number of 24-hr PM10 Exceedances Annual PM10 Avg. (µg/m3) *Indicates an exceedance of the standard ‡Indicates EEs at this site 3 2016 Air Monitoring Network Plan (June 29, 2017) 2014 171*‡ 1 45.9 2015 132 0 36.5 2016 174*‡ 1 46.9 Page 90 of 171 West Phoenix (WP) (04-013-0019) Site Location: 39th Ave. & Earll Dr., Phoenix Spatial Scale: Neighborhood Site Type: Population Exposure (CO, NO2, O3, PM10), Highest Concentration (PM2.5) Site Description: This site has been operational since 1984. The spatial scale for the West Phoenix site is Neighborhood. It is located in an area of stable, high-density residential properties. This SLAMS location monitors for CO, NO2, O3, PM10, and PM2.5. In addition, this is a QA collocation site for PM2.5 where the MCAQD operates one filter-based PM2.5 FRM sampler along with one continuous PM2.5 FEM analyzer as per 40 CFR Part 58 Appendix A. Meteorological monitors operating at this site include ambient temperature, barometric pressure, delta T (temperature inversion), and wind speed/direction. 2014 2015 2016 Max. 8-hr CO Avg. (ppm) 4.2 2.8 3.2 CO Number exceedances 8-hr CO 0 0 0 Annual NO2 Avg. (ppb) 17.97 16.39 16.24 NO2 NO2 1-hr Avg. 98th Percentile (ppb) 57.0 55.0 54.0 Max. 8-hr O3 Avg. (ppm) 0.079* 0.076* 0.073* O3 Number of O3 Daily Exceedances 4 2 6 3-year 8-hr Avg. O3 of 4th Highest Value (ppm) 0.078# 0.075 0.073# Max. 24-hr PM10 Avg. (µg/m3) 210*‡ 72 172*‡ PM10 Number of 24-hr PM10 Exceedances 2 0 1 3 Annual PM10 Avg. (µg/m ) 38.8 23.2 28.9 Max. 24-hr PM2.5 Avg. (µg/m3) 170.7* 40.5 152.1* Number of 24-hr PM2.5 Exceedances 3 2 1 PM2.5 3 Annual PM2.5 Avg. (µg/m ) 11.13 8.6 8.78 th PM2.5 98 Percentile Value 28.9 27.5 23.8 Note: The 2016 O3 data represent the new O3 NAAQS of 0.070 ppm; the 2014 and 2015 data represent the old O3 NAAQS of 0.075 ppm. * Indicates an exceedance of the standard # Indicates a violation of the standard ‡ Indicates EEs at this site - listed value is the highest official current AQS reading 2016 Air Monitoring Network Plan (June 29, 2017) Page 91 of 171 Zuni Hills (ZH) (04-013-4016) Site Location: 109th Ave. & Deer Valley Rd., Phoenix Spatial Scale: Neighborhood Site Type: Population Exposure Site Description: This site opened in December 2009 and is located on the campus of the Zuni Hills Elementary School, which is approximately 1.7 miles to the northeast from the now closed Coyote Lakes monitor. Coyote Lakes was a source-oriented, middle-scale PM10 site that was situated in the Agua Fria River bottom adjacent to sand and gravel mines. Zuni Hills replaced this with a population-oriented, neighborhood-scale site that is situated on the higher-elevation riverbank. This site will theoretically be able to represent the air quality for a larger area and a greater number of people. The site was temporarily shutdown for construction occurring in the area June 2014 - August 2014. This SLAMS location monitors for PM10, only. Meteorological monitors operating at this site include ambient temperature and wind speed/direction. 2014 166*‡ 1 24.0 Max. 24-hr PM10 Avg.(µg/m ) PM10 Number of 24-hr PM10 Exceedances Annual PM10 Avg.(µg/m3) *Indicates an exceedance of the standard ‡Indicates EEs at this site - listed value is the highest official current AQS reading. 3 2016 Air Monitoring Network Plan (June 29, 2017) 2015 81 0 21.5 2016 174*‡ 1 26.5 Page 92 of 171 APPENDIX II - EPA-REQUIRED SITE METADATA Detailed information includes compliance information regarding air monitoring technical specifications found in 40 CFR §58.10 and Appendices A, C, D, and E (QA, monitoring methods, network design, and monitor siting) 2016 Air Monitoring Network Plan (June 29, 2017) Page 93 of 171 Required General Statement Regarding Changes to the PM2.5 Network In the event the department needed to move or change a violating PM2.5 monitor, this procedure would be followed. The department would hold a public hearing regarding the requested change. Details and documentation of the requested change, as well as all public comments, would then be forwarded to the EPA R9 for approval. Any action on the department’s part will be dependent on EPA R9 approval. Please note that the previous statement is general in nature and required in this annual network review by 40 CFR Part 58. The department does not currently have any violating PM2.5 monitors, nor does it have any proposals to move any PM2.5 monitors. Site Schematic Descriptions Analysis Method (filter samples only) refers to the laboratory method used to process and analyze PM and Pb filter samples. Distance from Supporting Structure refers to a sample cane that is attached to a supporting structure, such as the side of a building. Currently within the county’s network, the sample canes are located above shelter rooves and are not attached to supporting structures. Entries on site metadata tables show as “Not Relevant”. Distance from Obstructions on Roof refers to obstructions such as a parapet or a firewall. The distance to a nearby obstruction that is higher than the sample inlet, or probe, is listed or shown as > 20 meters. Distance from Obstructions Not on Roof refers to obstructions such as trees that are higher than the probe. The distance to a nearby obstruction that is higher than the sample inlet, or probe, is listed or shown as > 20 meters. Precision and Bias Audits Dates of Annual Performance Evaluation refers to the QA audits on the gaseous analyzers. Twenty-five percent of the monitors operating within each gaseous pollutant’s network are evaluated quarterly; thereby, each monitor is evaluated once per year as per 40 CFR Part 58, Appendix A, §3.2.2. Dates of Semi-Annual Flow Rate Audit refers to the QA audits on PM monitors as per 40 CFR Part 58, Appendix A, §§ 3.2.4 and 3.3.4, and the Pb monitors as per 40 CFR Part 58, Appendix A, §3.4, respectively. The AMD’s QA team performs these evaluations once every six months. Probe Sample Line Material refers to the chemical composition of the sample line material. Pollutant Sample Residence Time refers to the amount of time that it takes a sample of air to travel between the probe inlet and the bulkhead of the analyzer. This residence time is calculated by a formula that is based on the sample line’s diameter and length, and the flow rate of the air intake. It is important to keep residence time low to prevent gases in the air sample from reacting with the sample line material or with other gases in the sample; i.e., O3 could react with nitrogen oxides in the sample if the residence time exceeds 20 seconds. This measurement applies to CO, NO2, O3, and SO2 sample lines. 2016 Air Monitoring Network Plan (June 29, 2017) Page 94 of 171 BLUE POINT County ID: BP AQS ID: 04-013-9702 Address: Bush Highway & Usery Pass Rd., Maricopa County Coordinates: 33.54549N, -111.60925W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant Parameter Code Parameter Occurrence Code Collection Frequency Analysis Method (sample filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? Are Data Comparable to Respective NAAQS? O3 44201 1 Continuous Not Applicable No Not Applicable Yes Appendix A Requirements - Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed Annually Number of Accuracy Audits Performed Annually 26 4 03/09/16 05/18/16 Dates of Accuracy Audits on the Gaseous Analyzer 10/19/16 11/16/16 All Precision/Bias Reports Submitted to AQS? Yes Annual Data Certification Submitted? 04/07/17 Frequency of One-Point QC Check Bi-Weekly Frequency of Flow Rate Verification Not Applicable Appendix C Requirements - Monitoring Methodology Date Established 01/01/1993 Monitor Type SLAMS Monitor Make - Model Teledyne API – Model 400T Method Code 087 Method Type (FRM, FEM, ARM) FEM Appendix D Requirements - Network Design Criteria Site Type Max Ozone Concentration Basic Monitoring Objective NAAQS Comparison Monitoring Scale (Spatial Scale Represented) Urban Monitoring Season Jan-Dec Network Meets Minimum Number of Monitors Required? Yes Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable Probe Inlet Height 8.9 meters 2016 Air Monitoring Network Plan (June 29, 2017) Page 95 of 171 Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) 360º Teflon™ 7.6 seconds Not Relevant No Obstructions 11 meters 11 meters No Furnace Flue Bush Highway 160 meters, S 1,000 Paved Page 96 of 171 BUCKEYE County ID: BE AQS ID: 04-013-4011 Address 26453 W MC85 Coordinates: 33.37005N, -111.62070W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information CO NO2 42101 42602 1 1 Continuous Continuous Pollutant O3 PM10 Parameter Code 44201 81102 Parameter Occurrence Code 1 1 Collection Frequency Continuous Continuous Analysis Method (sample filters Not Applicable Not Applicable Not Applicable Not Applicable only) Any Proposal to Remove or Move No No No No Monitor? Is site suitable for comparison to Not Applicable Not Applicable Not Applicable Not Applicable PM2.5 NAAQS per Part 58.30? Are Data Comparable to Respective Yes Yes Yes Yes NAAQS? Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks 16 26 26 24 Performed Annually Number of Accuracy Audits 4 5 3 4 Performed Annually 01/05/16 03/15/16 01/05/16 05/10/16 05/10/16 Dates of Accuracy Audits on 09/13/16 02/02/16 06/21/16 06/21/16 Gaseous & PM Analyzers 09/27/16 04/12/16 11/08/16 12/06/16 10/12/16 07/19/16 12/06/16 All Precision/Bias Reports Yes Yes Yes Yes Submitted to AQS? Annual Data Certification 04/07/17 04/07/17 04/07/17 04/07/17 Submitted? Frequency of One-Point QC Check Bi-Weekly Bi-Weekly Bi-Weekly Not Applicable Frequency of Flow Rate Verification Not Applicable Not Applicable Not Applicable Bi-Weekly Appendix C Requirements – Monitoring Methodology Date Established 08/01/2004 08/01/2004 08/01/2004 08/01/2004 Monitor Type SLAMS SLAMS SLAMS SLAMS Teledyne API – Teledyne API – Teledyne API – Thermo – Monitor Make - Model Model 300T Model 200T Model 400T TEOM 1405-S Method Code 093 099 087 079 PM Monitor Flow Type Not Applicable Not Applicable Not Applicable Low Volume 2016 Air Monitoring Network Plan (June 29, 2017) Page 97 of 171 PM Monitor Collection Type Not Applicable Not Applicable Not Applicable Size Specific Method Type (FRM, FEM, ARM) FRM FRM FEM FEM Appendix D Requirements - Network Design Criteria Population Population Population Population Site Type Exposure Exposure Exposure Exposure NAAQS NAAQS NAAQS NAAQS Basic Monitoring Objective Comparison Comparison Comparison Comparison Monitoring Scale Neighborhood Urban Neighborhood Neighborhood (Spatial Scale Represented) Monitoring Season Sep-Mar Jan-Dec Jan-Dec Jan-Dec Network Meets Minimum Number Yes Yes Yes Yes of Monitors Required? Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated Not Applicable Not Applicable Not Applicable Not Applicable samplers Probe Inlet Height 4 meters 4 meters 4 meters 4.5 meters Probe Sample Line Material Teflon™ Teflon™ Teflon™ Not Applicable Pollutant Sample Residence Time 7.12 seconds 7.12 seconds 7.12 seconds Not Applicable Airflow Arc 360º 360º 360º 360º Distance from Supporting Structure Not Relevant Not Relevant Not Relevant Not Relevant Distance from Obstructions on No Obstruction No Obstruction No Obstruction No Obstruction Roof Distance from Obstructions Not on >20 meters >20 meters >20 meters >20 meters Roof Distance from Closest Tree Dripline >20 meters >20 meters >20 meters >20 meters No Furnace No Furnace No Furnace Distance to Furnace Flue No Furnace Flue Flue Flue Flue Nearest Major Roadway U.S. Hwy 85 U.S. Hwy 85 U.S. Hwy 85 U.S. Hwy 85 Distance and Direction to Road 31 meters, N 31 meters, N 31 meters, N 31 meters, N Traffic Count (ADT) 3,000 3,000 3,000 3,000 Groundcover Paved Paved Paved Paved 2016 Air Monitoring Network Plan (June 29, 2017) Page 98 of 171 CAVE CREEK County ID: CC AQS ID: 04-013-4008 Address: 37019 N Lava Lane, Phoenix Coordinates: 33.82169N, -112.01739W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant O3 Parameter Code 44201 Parameter Occurrence Code 1 Collection Frequency Continuous Analysis Method (sample filters only) Not Applicable Any Proposal to Remove or Move Monitor? No Is site suitable for comparison to PM2.5 NAAQS per Part Not Applicable 58.30? Are Data Comparable to Respective NAAQS? Yes Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed Annually 26 Number of Accuracy Audits Performed Annually 3 04/07/16 Dates of Accuracy Audits on the Gaseous Analyzer 06/16/16 10/06/16 All Precision/Bias Reports Submitted to AQS? Yes Annual Data Certification Submitted? 04/07/17 Frequency of One-Point QC Check Bi-weekly Frequency of Flow Rate Verification Not Applicable Appendix C Requirements - Monitoring Methodology Date Established 07/20/2001 Monitor Type SLAMS Monitor Make - Model Teledyne - API Model 400T Method Code 087 Method Type (FRM, FEM, ARM) FEM Appendix D Requirements - Network Design Criteria Site Type Max Ozone Concentration Basic Monitoring Objective NAAQS Comparison Monitoring Scale (Spatial Scale Represented) Urban Monitoring Season Jan-Dec Network Meets Minimum Number of Monitors Required? Yes Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable Probe Inlet Height 4.8 meters Airflow Arc 360º 2016 Air Monitoring Network Plan (June 29, 2017) Page 99 of 171 Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) Teflon™ 11.4 seconds Not Relevant No Obstruction > 20 meters > 20 meters No Furnace Flue 32nd Street 240 meters, NE 1,000 Paved Page 100 of 171 CENTRAL PHOENIX County ID: CP AQS ID: 04-013-3002 Address: 1645 E Roosevelt, Phoenix Coordinates: 33.45793N, -112.04601W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information NO2 O3 42602 44201 Pollutant CO SO2 PM10 Parameter Code 42101 42401 81102 Parameter Occurrence 1 6 1 4 4 Code Collection Continuous Continuous Continuous Continuous Continuous Frequency Analysis Not Not Method Not Applicable Not Applicable Not Applicable (sample filters Applicable Applicable only) Any Proposal to Remove or No No No No No Move Monitor? Is site suitable for comparison Not Not Not Applicable Not Applicable Not Applicable to PM2.5 Applicable Applicable NAAQS per Part 58.30? Are Data Comparable to Yes Yes Yes Yes Yes Respective NAAQS? Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks 29 27 28 29 26 Performed Annually Number of Accuracy Audits 3 4 4 4 2 Performed Annually 04/19/16 06/02/16 04/19/16 01/20/16 Dates of 04/05/16 05/06/16 08/25/16 06/14/16 02/17/16 Accuracy Audits 07/14/16 12/01/16 10/06/16 09/08/16 07/14/16 2016 Air Monitoring Network Plan (June 29, 2017) Page 101 of 171 on Gaseous & PM Analyzers All Precision/Bias Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Date Established Monitor Type Monitor Make Model Method Code PM Monitor Flow Type PM Monitor Collection Type Method Type (FRM, FEM, ARM) Site Type Basic Monitoring Objective Monitoring Scale (Spatial Scale Represented) 10/18/16 12/01/16 09/20/16 Yes Yes Yes Yes Yes 04/07/17 04/07/17 04/07/17 04/07/17 04/07/17 Bi-Weekly Bi-Weekly Bi-Weekly Bi-Weekly Not Applicable Not Applicable Bi-Weekly Not Applicable Not Applicable Not Applicable Appendix C Requirements - Monitoring Methodology 10/01/1966 01/01/1967 06/01/1967 01/01/1965 04/01/1985 SLAMS SLAMS SLAMS SLAMS SLAMS Thermo TEOM 1405S 079 Teledyne API - Teledyne API - Teledyne API Model 300T Model 200T Model 400T 093 099 087 Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable FRM FRM FEM Teledyne API - Model 100T 100 Not Applicable Not Applicable FEM Low Volume Size Specific FEM Appendix D Requirements - Network Design Criteria Population Highest Population Highest Exposure Concentration Exposure Concentration Population Exposure NAAQS Comparison NAAQS Comparison NAAQS Comparison NAAQS Comparison Neighborhood Neighborhood Neighborhood 2016 Air Monitoring Network Plan (June 29, 2017) NAAQS Comparison Neighborhood Neighborhood Page 102 of 171 Monitoring Jan-Dec Jan-Dec Jan-Dec Jan-Dec Jan-Dec Season Network Meets Minimum Number of Yes Yes Yes Yes Yes Monitors Required? Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between Not Not Not Applicable Not Applicable Not Applicable Applicable Applicable collocated samplers Probe Inlet 10.3 meters 10.3 meters 10.3 meters 10.3 meters 10.3 meters Height Airflow Arc 360º 360º 360º 360º 360º Probe Sample Not Teflon™ Teflon™ Teflon™ Teflon™ Line Material Applicable Pollutant Not Sample 7.5 seconds 7.5 seconds 7.5 seconds 7.5 seconds Applicable Residence Time Distance from Supporting Not Relevant Not Relevant Not Relevant Not Relevant Not Relevant Structure Distance from No No No No No Obstructions on Obstruction Obstruction Obstruction Obstruction Obstruction Roof Distance from Obstructions > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters Not on Roof Distance from Closest Tree > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters Dripline Distance to No Furnace No Furnace No Furnace No Furnace No Furnace Furnace Flue Flue Flue Flue Flue Flue Nearest Major 16th Street 16th Street 16th Street 16th Street 16th Street Roadway A Distance and Direction to 88 meters, W 88 meters, W 88 meters, W 88 meters, W 91 meters, W Road Traffic Count 24,000 24,000 24,000 24,000 24,000 (ADT) Nearest Major Roosevelt St. Roosevelt St. Roosevelt St. Roosevelt St. Roosevelt St. Roadway B 2016 Air Monitoring Network Plan (June 29, 2017) Page 103 of 171 Distance and Direction to Road Traffic Count (ADT) Groundcover 75 meters, N 21,637 Paved 2016 Air Monitoring Network Plan (June 29, 2017) 75 meters, N 75 meters, N 75 meters, N 75 meters, N 21,637 21,637 21,637 21,637 Paved Paved Paved Paved Page 104 of 171 DEER VALLEY County ID: DV AQS ID: 04-013-4018 Address: 1030 West Deer Valley Road, Phoenix Coordinates: 33.684627N, -112.08635W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pb Primary Pollutant Pb Secondary Note: This is a collocated site for Pb. Parameter Code Parameter Occurrence Code Collection Frequency Analysis Method (sample filters only) Analytical Laboratory 14129 1 1 in 6 days 14129 2 1 in 12 days EQL-0510-191 EQL-0510-191 Pima County Regional Wastewater Reclamation Department (RWRD) Compliance and Regulatory Affairs Office (CRAO) Laboratory Any Proposal to Remove or No No Move Monitor? Is site suitable for comparison to Not Applicable Not Applicable PM2.5 NAAQS per Part 58.30? Are Data Comparable to Yes Yes Respective NAAQS? Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks 8 8 Performed Annually Number of Accuracy Audits 2 2 Performed Annually Number of Collocation 29 Assessments Performed Date of Accuracy Audits on 01/19/16 01/19/16 Samplers 10/11/16 10/11/16 Note: The audits did not meet EPA requirement of being 6 months apart. The audit SOP has been updated for this requirement. All Precision/Bias Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification 2016 Air Monitoring Network Plan (June 29, 2017) Yes Yes 04/07/17 04/07/17 Not Applicable Not Applicable Quarterly Quarterly Page 105 of 171 Appendix C Requirements - Monitoring Methodology Date Established 07/21/2010 07/21/2010 Monitor Type SLAMS SLAMS Monitor Make - Model Thermo TSP Sampler Thermo TSP Sampler Method Code 802 802 Pb Monitor Flow Type High Volume High Volume Pb Monitor Collection Type Total Suspended Particulates Total Suspended Particulates Method Type (FRM, FEM, FRM FRM ARM) Appendix D Requirements - Network Design Criteria Site Type Source-Oriented Source-Oriented Basic Monitoring Objective NAAQS Comparison NAAQS Comparison Monitoring Scale (Spatial Scale Middle Scale Middle Scale Represented) Monitoring Season Jan-Dec Jan-Dec Network Meets Minimum Yes Yes Number of Monitors Required? Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated 2.7 meters 2.7 meters samplers Probe Inlet Height 4.1 meters 4.1 meters Airflow Arc 360º 360º Probe Sample Line Material Not Applicable Not Applicable Pollutant Sample Residence Time Not Applicable Not Applicable Filter Sample Material Glass Glass Distance from Supporting Not Relevant Not Relevant Structure Distance from Obstructions On No Obstruction No Obstruction Roof Distance from Obstructions Not > 20 meters > 20 meters on Roof Distance from Closest Tree > 20 meters > 20 meters Dripline Distance to Furnace Flue No Furnace Flue No Furnace Flue Nearest Major Roadway Deer Valley Rd. Deer Valley Rd. Distance and Direction to Road 300 meters, S 300 meters, S Traffic Count (ADT) 6,452 6,452 Groundcover Paved Paved 2016 Air Monitoring Network Plan (June 29, 2017) Page 106 of 171 DIABLO County ID: DI AQS ID: 04-013-4019 Address: 1919 W. Fairmount Dr., Tempe Coordinates: 33.39625N, -111.96797W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant CO NO2 PM2.5 Parameter Code 42101 42602 88101 Parameter Occurrence Code 1 1 3 Collection Frequency Continuous Continuous Continuous Analysis Method (sample filters only) Not Applicable Not Applicable Not Applicable Any Proposal to Remove or Move No No No Monitor? Is site suitable for comparison to PM2.5 Not Applicable Not Applicable Yes NAAQS per Part 58.30? Are Data Comparable to Respective Yes Yes Yes NAAQS? Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks 26 26 25 Performed Annually Number of Accuracy Audits Performed 5 5 4 Annually 03/22/16 02/09/16 02/09/16 04/06/16 03/22/16 Dates of Accuracy Audits on Gaseous 04/06/16 04/19/16 08/24/16 04/19/16 & PM Analyzers 11/02/16 09/07/16 11/02/16 12/14/16 12/20/16 All Precision/Bias Reports Submitted Yes Yes Yes to AQS? Annual Data Certification Submitted? 04/07/17 04/07/17 04/07/17 Frequency of One-Point QC Check Bi-Weekly Bi-Weekly Not Applicable Frequency of Flow Rate Verification Not Applicable Not Applicable Bi-Weekly Appendix C Requirements - Monitoring Methodology Date Established 2/13/2014 02/13/2014 05/01/2014 Monitor Type SLAMS SLAMS SLAMS Teledyne API – Teledyne API – Thermo - TEOM Monitor Make - Model 300T 200T 1405-DF Method Code 093 099 182 PM Monitor Flow Type Not Applicable Not Applicable Low Volume PM Monitor Collection Type Not Applicable Not Applicable Dichotomous Method Type (FRM, FEM, ARM) FRM FRM FEM 2016 Air Monitoring Network Plan (June 29, 2017) Page 107 of 171 Appendix D Requirements - Network Design Criteria Site Type Source-Oriented Source-Oriented Source-Oriented NAAQS NAAQS NAAQS Basic Monitoring Objective Comparison Comparison Comparison Monitoring Scale (Spatial Scale Micro Micro Micro Represented) Monitoring Season Jan-Dec Jan-Dec Jan-Dec Network Meets Minimum Number of Yes Yes Yes Monitors Required? Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable Not Applicable Not Applicable Probe Inlet Height 5 meters 5 meters 5 meters Airflow Arc 360º 360º 360º Probe Sample Line Material Teflon™ Teflon™ Not Applicable Pollutant Sample Residence Time 7.14 seconds 7.14 seconds Not Applicable Distance from Supporting Structure Not Relevant Not Relevant Not Relevant Distance from Obstructions on Roof No Obstruction No Obstruction No Obstruction Distance from Obstructions Not on > 20 meters > 20 meters > 20 meters Roof Distance from Closest Tree Dripline > 20 meters > 20 meters > 20 meters Distance to Furnace Flue No Furnace Flue No Furnace Flue No Furnace Flue Nearest Major Roadway A Interstate-10 Interstate-10 Interstate-10 Distance and Direction to Road 30 meters, E 30 meters, E 30 meters, E Traffic Count (ADT) 275,000 275,000 275,000 Nearest Major Roadway B Fairmount Dr. Fairmount Dr. Fairmount Dr. Distance and Direction to Road 18 meters, N 18 meters, N 18 meters, N Traffic Count (ADT) 3,000 3,000 3,000 Groundcover Paved/Gravel Paved/Gravel Paved/Gravel 2016 Air Monitoring Network Plan (June 29, 2017) Page 108 of 171 DURANGO COMPLEX County ID: DC AQS ID: 04-013-9812 Address: 2702 RC Esterbrooks Blvd., Phoenix Coordinates: 33.42650N, -112.11814W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information - NAAQS Air Monitoring Pollutant PM10 PM2.5 SO2 Parameter Code 81102 88101 42401 Parameter Occurrence Code 1 3 1 Collection Frequency Continuous Continuous Continuous Analysis Method (sample filters only) Not Applicable Not Applicable Not Applicable Any Proposal to Remove or Move No No No Monitor? Is site suitable for comparison to Not Applicable Yes Not Applicable PM2.5 NAAQS per Part 58.30? Are Data Comparable to Respective Yes Yes Yes NAAQS? Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks 24 25 27 Performed Annually Number of Accuracy Audits 3 3 4 Performed Annually 05/04/16 01/14/16 01/14/16 Dates of Accuracy Audits on 06/15/16 04/06/16 04/06/16 Gaseous & PM Analyzers 11/03/16 07/13/16 07/13/16 12/14/16 All Precision/Bias Reports Yes Yes Yes Submitted to AQS? Annual Data Certification 04/07/17 04/07/17 04/07/17 Submitted? Frequency of One-Point QC Check Not Applicable Not Applicable Bi-Weekly Frequency of Flow Rate Verification Bi-Weekly Bi-Weekly Not Applicable Appendix C Requirements - Monitoring Methodology Date Established 07/01/1999 07/01/2005 01/01/2011 Monitor Type SLAMS SLAMS SLAMS Thermo - TEOM Thermo - TEOM Teledyne API – Monitor Make - Model 1405-DF 1405-DF 100T Note: The same monitor measures PM 10 and PM 2.5. Method Code PM Monitor Flow Type PM Monitor Collection Type 2016 Air Monitoring Network Plan (June 29, 2017) 208 Low Volume Dichotomous 182 Low Volume Dichotomous 100 Not Applicable Not Applicable Page 109 of 171 Method Type (FRM, FEM, ARM) FEM FEM Appendix D Requirements - Network Design Criteria Population Highest Site Type Exposure Concentration NAAQS NAAQS Basic Monitoring Objective Comparison Comparison Monitoring Scale (Spatial Scale Neighborhood Neighborhood Represented) Monitoring Season Jan-Dec Jan-Dec Network Meets Minimum Number Yes Yes of Monitors Required? Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated Not Applicable Not Applicable samplers Distance between PM monitor inlets? 0 meters 0 meters FRM Highest Concentration NAAQS Comparison Middle Jan-Dec Yes Not Applicable Not Applicable Note: The TEOM 1405-DF collects air for both PM 10 and PM 2.5 measurements through the same inlet. Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) 3.8 meters 360º Not Applicable Not Applicable Not Relevant No Obstruction 3.8 meters 360º Not Applicable Not Applicable Not Relevant No Obstruction 3.9 meters 360º Teflon™ 6.61 sec Not Relevant No Obstruction > 20 meters > 20 meters > 20 meters > 20 meters No Furnace Flue 27th Ave 78 meters, E 16,000 Paved > 20 meters No Furnace Flue 27th Ave 76 meters, E 16,000 Paved > 20 meters No Furnace Flue 27th Ave 76 meters, E 16,000 Paved Page 110 of 171 DYSART County ID: DY AQS ID: 04-013-4010 Address: 16825 N Dysart Rd., Surprise Coordinates: 33.63713N, -112.34184W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information CO 42101 1 Continuous Not Applicable Pollutant O3 PM10 Parameter Code 44201 81102 Parameter Occurrence Code 1 1 Collection Frequency Continuous Continuous Analysis Method (sample filters only) Not Applicable Not Applicable Any Proposal to Remove or Move Yes No No Monitor? Is site suitable for comparison to Not Applicable Not Applicable Not Applicable PM2.5 NAAQS per Part 58.30? Are Data Comparable to Respective No Yes Yes NAAQS? Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks 6 26 24 Performed Annually Number of Accuracy Audits 0 3 3 Performed Annually No Dates (Analyzer removed 03/17/16 01/07/16 Dates of Accuracy Audits on Gaseous before scheduled 04/14/16 04/14/16 & PM Analyzers audits were 12/22/16 07/20/16 required.) All Precision/Bias Reports Submitted Yes Yes Yes to AQS? Annual Data Certification Submitted? 04/07/17 04/07/17 04/07/17 Frequency of One-Point QC Check Bi-Weekly Bi-Weekly Not Applicable Frequency of Flow Rate Verification Not Applicable Not Applicable Bi-Weekly Appendix C Requirements - Monitoring Methodology Date Established 09/01/2003 7/21/2003 07/14/2003 Monitor Type SLAMS SLAMS SLAMS Teledyne API – Teledyne API – Thermo - TEOM Monitor Make - Model 300T 400T 1405-S Method Code 093 087 079 PM Monitor Flow Type Not Applicable Not Applicable Low Volume PM Monitor Collection Type Not Applicable Not Applicable Size Specific Method Type (FRM, FEM, ARM) FRM FEM FEM 2016 Air Monitoring Network Plan (June 29, 2017) Page 111 of 171 Appendix D Requirements - Network Design Criteria Population Population Population Site Type Exposure Exposure Exposure NAAQS NAAQS NAAQS Basic Monitoring Objective Comparison Comparison Comparison Monitoring Scale (Spatial Scale Neighborhood Neighborhood Neighborhood Represented) Monitoring Season Sep-Mar Jan-Dec Jan-Dec Network Meets Minimum Number of Yes Yes Yes Monitors Required? Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable Not Applicable Not Applicable Probe Inlet Height 3.8 meters 3.8 meters 3.6 meters Airflow Arc 360º 360º 360º Probe Sample Line Material Teflon™ Teflon™ Not Applicable Pollutant Sample Residence Time 5.3 seconds 5.3 seconds Not Applicable Distance from Supporting Structure Not Relevant Not Relevant Not Relevant Distance from Obstructions on Roof No Obstruction No Obstruction No Obstruction Distance from Obstructions Not on > 20 meters > 20 meters > 20 meters Roof Distance from Closest Tree Dripline > 20 meters > 20 meters > 20 meters Distance to Furnace Flue No Furnace Flue No Furnace Flue No Furnace Flue Nearest Major Roadway A Dysart Dysart Dysart Distance and Direction to Road 17 meters, W 17 meters, W 12 meters, W Traffic Count (ADT) 12,000 12,000 12,000 Nearest Major Roadway B Bell Rd Bell Rd Bell Rd Distance and Direction to Road 495 meters, N 495 meters, N 460 meters, N Traffic Count (ADT) 43,000 43,000 43,000 Groundcover Paved/Gravel Paved/Gravel Paved/Gravel 2016 Air Monitoring Network Plan (June 29, 2017) Page 112 of 171 FALCON FIELD County ID: FF AQS ID: 04-013-1010 Address: 4530 E McKellips Rd, Mesa Coordinates: 33.45223N, -111.73331W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant O3 Parameter Code 44201 Parameter Occurrence Code 1 Collection Frequency Continuous Analysis Method (sample filters only) Not Applicable Any Proposal to Remove or Move Monitor? No Is site suitable for comparison to PM2.5 NAAQS per Part Not Applicable 58.30? Are Data Comparable to Respective NAAQS? Yes Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed Annually 26 Number of Accuracy Audits Performed Annually 3 01/13/16 Dates of Accuracy Audits on Gaseous Analyzer 02/24/16 06/29/16 All Precision/Bias Reports Submitted to AQS? Yes Annual Data Certification Submitted? 04/07/17 Frequency of One-Point QC Check Bi-Weekly Frequency of Flow Rate Verification Not Applicable Appendix C Requirements - Monitoring Methodology Date Established 06/01/1989 Monitor Type SLAMS Monitor Make - Model Teledyne API – 400T Method Code 087 Method Type (FRM, FEM, ARM) FEM Appendix D Requirements - Network Design Criteria Site Type Population Exposure Basic Monitoring Objective NAAQS Comparison Monitoring Scale (Spatial Scale Represented) Neighborhood Monitoring Season Jan-Dec Network Meets Minimum Number of Monitors Required? Yes Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable Probe Inlet Height 9.3 meters Airflow Arc 360º 2016 Air Monitoring Network Plan (June 29, 2017) Page 113 of 171 Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) Teflon™ 18.8 seconds Not Relevant No Obstruction > 20 meters > 20 meters No Furnace Flue McKellips 58 meters, S 29,000 Paved Page 114 of 171 FOUNTAIN HILLS County ID: FH AQS ID: 04-013-9704 Address: 16426 E. Palisades Blvd., Fountain Hills Coordinates: 33.61103N, -111.72529W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant O3 Parameter Code 44201 Parameter Occurrence Code 1 Collection Frequency Continuous Analysis Method (sample filters only) Not Applicable Any Proposal to Remove or Move Monitor? No Is site suitable for comparison to PM2.5 NAAQS per Part Not Applicable 58.30? Are Data Comparable to Respective NAAQS? Yes Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed Annually 26 Number of Accuracy Audits Performed Annually 2 04/12/16 Dates of Accuracy Audits on Gaseous Analyzer 12/19/16 All Precision/Bias Reports Submitted to AQS? Yes Annual Data Certification Submitted? 04/07/17 Frequency of One-Point QC Check Bi-Weekly Frequency of Flow Rate Verification Not Applicable Appendix C Requirements - Monitoring Methodology Date Established 04/01/1996 Monitor Type SLAMS Monitor Make - Model Teledyne API – 400T Method Code 087 Method Type (FRM, FEM, ARM) FEM Appendix D Requirements - Network Design Criteria Site Type Max Ozone Concentration Basic Monitoring Objective NAAQS Comparison Monitoring Scale (Spatial Scale Represented) Neighborhood Monitoring Season Jan-Dec Network Meets Minimum Number of Monitors Required? Yes Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable Probe Inlet Height 4.3 meters Airflow Arc 360º Probe Sample Line Material Teflon™ 2016 Air Monitoring Network Plan (June 29, 2017) Page 115 of 171 Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) 4.2 seconds Not Relevant No Obstruction 9 meters 15 meters No Furnace Flue Palisades Blvd 70 meters, SW 8,000 Paved Page 116 of 171 GLENDALE County ID: GL AQS ID: 04-013-2001 Address: 6001 W Olive, Glendale Coordinates: 33.57454N, -112.19196W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information CO O3 42101 44201 Pollutant PM10 PM2.5 Parameter Code 81102 88101 Parameter Occurrence 1 1 1 3 Code Collection Frequency Continuous Continuous Continuous Continuous Analysis Method (sample Not Applicable Not Applicable Not Applicable Not Applicable filters only) Any Proposal to Remove Yes No No No or Move Monitor? Is site suitable for comparison to PM2.5 Not Applicable Not Applicable Not Applicable Yes NAAQS per Part 58.30? Are Data Comparable to Yes Yes Yes Yes Respective NAAQS? Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed 8 26 24 24 Annually Number of Accuracy Audits Performed 1 2 3 3 Annually Dates of Accuracy Audits 01/21/16 01/21/16 05/02/16 on Gaseous and PM 03/03/16 07/19/16 07/19/16 10/11/16 Analyzers 10/11/16 10/11/16 All Precision/Bias Reports Submitted to Yes Yes Yes Yes AQS? Annual Data Certification 04/07/17 04/07/17 04/07/17 04/07/17 Submitted? Frequency of One-Point Bi-Weekly Bi-Weekly Not Applicable Not Applicable QC Check Frequency of Flow Rate Not Applicable Not Applicable Bi-Weekly Bi-Weekly Verification Appendix C Requirements - Monitoring Methodology Date Established 01/01/1974 01/01/1974 07/01/1987 6/1/2011 2016 Air Monitoring Network Plan (June 29, 2017) Page 117 of 171 Monitor Type Monitor Make - Model SLAMS Teledyne API – 300T SLAMS Teledyne API – 400T SLAMS SLAMS Thermo - TEOM Thermo - TEOM 1405-DF 1405-DF Note: The same monitor measures PM 10 and PM 2.5. Method Code 093 087 208 182 PM Monitor Flow Type Not Applicable Not Applicable Low Volume Low Volume PM Monitor Collection Not Applicable Not Applicable Dichotomous Dichotomous Type Method Type (FRM, FRM FEM FEM FEM FEM, ARM) Appendix D Requirements - Network Design Criteria Population Population Population Population Site Type Exposure Exposure Exposure Exposure Basic Monitoring NAAQS NAAQS NAAQS NAAQS Objective Comparison Comparison Comparison Comparison Monitoring Scale (Spatial Neighborhood Neighborhood Neighborhood Neighborhood Scale Represented) Monitoring Season Sep-Mar Jan-Dec Jan-Dec Jan-Dec Network Meets Minimum Number of Yes Yes Yes Yes Monitors Required? Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between Not Applicable Not Applicable Not Applicable Not Applicable collocated samplers Distance between PM10 Not Applicable Not Applicable 0 meters 0 meters and PM2.5 monitors Note: The TEOM 1405-DF collects air for both PM 10 and PM 2.5 measurements through the same inlet. Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof 3.7 meters 360º 3.7 meters 360º 3.4 meters 360º 4.0 meters 360º Teflon™ Teflon™ Not Applicable Not Applicable 4.5 seconds 4.5 seconds Not Applicable Not Applicable Not Relevant Not Relevant Not Relevant Not Relevant No Obstruction No Obstruction No Obstruction No Obstruction > 20 meters > 20 meters > 20 meters > 20 meters 2016 Air Monitoring Network Plan (June 29, 2017) Page 118 of 171 Distance from Closest Tree Dripline > 20 meters > 20 meters > 20 meters > 20 meters Distance to Furnace Flue No Furnace Flue No Furnace Flue No Furnace Flue No Furnace Flue Olive Ave Olive Ave Olive Ave Olive Ave 225 meters, S 225 meters, S 227 meters, S 227 meters, S 25,000 25,000 25,000 25,000 59th Ave 59th Ave 59th Ave 59th Ave 475 meters, E 475 meters, E 430 meters, E 430 meters, E 30,500 Paved 30,500 Paved 30,500 Paved 30,500 Paved Nearest Major Roadway A Distance and Direction to Road Traffic Count (ADT) Nearest Major Roadway B Distance and Direction to Road Traffic Count (ADT) Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) Page 119 of 171 GREENWOOD County ID: GR AQS ID: 04-013-3010 Address: 1128 N 27th Ave., Phoenix Coordinates: 33.46093N, -112.11748W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant CO NO2 PM10 Parameter Code 42101 42602 81102 Parameter Occurrence Code 1 1 1 Collection Frequency Continuous Continuous Continuous Analysis Method (sample filters only) Not Applicable Not Applicable Not Applicable Any Proposal to Remove or Move Monitor? Yes Yes Yes Is site suitable for comparison to PM2.5 Not Applicable Not Applicable Not Applicable NAAQS per Part 58.30? Are Data Comparable to Respective Yes Yes Yes NAAQS? Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed 12 11 11 Annually Number of Accuracy Audits Performed 3 2 2 Annually 05/12/16 Dates of Accuracy Audits on Gaseous and 02/18/16 02/18/16 05/25/16 PM Analyzers 05/12/16 05/12/16 06/09/16 All Precision/Bias Reports Submitted to Yes Yes Yes AQS? Annual Data Certification Submitted? 04/07/17 04/07/17 04/07/17 Frequency of One-Point QC Check Bi-Weekly Bi-Weekly Not Applicable Frequency of Flow Rate Verification Not Applicable Not Applicable Bi-Weekly Appendix C Requirements - Monitoring Methodology Date Established 11/01/1993 11/01/1993 11/01/1993 Monitor Type SLAMS SLAMS SLAMS Teledyne API – Teledyne API – Thermo - TEOM Monitor Make - Model 300T 200T 1405-S Method Code 093 099 079 PM Monitor Flow Type Not Applicable Not Applicable Low Volume PM Monitor Collection Type Not Applicable Not Applicable Size Specific Method Type (FRM, FEM, ARM) FRM FRM FEM Appendix D Requirements - Network Design Criteria Population Population Population Site Type Exposure Exposure Exposure 2016 Air Monitoring Network Plan (June 29, 2017) Page 120 of 171 Basic Monitoring Objective NAAQS Comparison Middle Jan-Dec NAAQS Comparison Middle Jan-Dec NAAQS Comparison Middle Jan-Dec Monitoring Scale (Spatial Scale Represented) Monitoring Season Network Meets Minimum Number of Yes Yes Yes Monitors Required? Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable Not Applicable Not Applicable Probe Inlet Height 4.2 meters 4.2 meters 4.4 meters Airflow Arc 360º 360º 360º Probe Sample Line Material Teflon™ Teflon™ Not Applicable Pollutant Sample Residence Time 5.3 seconds 5.3 seconds Not Applicable Distance from Supporting Structure Not Relevant Not Relevant Not Relevant Distance from Obstructions on Roof > 20 meters > 20 meters > 20 meters Distance from Obstructions Not on Roof > 20 meters > 20 meters > 20 meters Distance from Closest Tree Dripline > 20 meters > 20 meters > 20 meters No Furnace No Furnace No Furnace Flue Distance to Furnace Flue Flue Flue th Nearest Major Roadway A 27 Ave 27th Ave 27th Ave Distance and Direction to Road 10 meters, E 10 meters, E 10 meters, E Traffic Count (ADT) 18,500 18,500 18,500 Nearest Major Roadway B I-10 I-10 I-10 Distance and Direction to Road 85 meters, N 85 meters, N 85 meters, N Traffic Count (ADT) 229,000 229,000 229,000 Groundcover Paved Paved Paved 2016 Air Monitoring Network Plan (June 29, 2017) Page 121 of 171 HIGLEY County ID: HI AQS ID: 04-013-4006 Address: 2207 S Higley Rd., Gilbert Coordinates: 33.30994 N, -111.72002 W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant Parameter Code Parameter Occurrence Code Collection Frequency Analysis Method (sample filters only) Any Proposal to Remove or Move Monitor? PM10 81102 1 Continuous Not Applicable Yes Note: Site reopened at new location in Q1-2017 – same AQS ID. Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? Not Applicable Are Data Comparable to Respective NAAQS? Not Applicable Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed Annually Not operating Number of Accuracy Audits Performed Annually Not operating Dates of Accuracy Audits on PM Analyzer Not operating All Precision/Bias Reports Submitted to AQS? No checks Annual Data Certification Submitted? No data Frequency of One-Point QC Check Not Applicable Frequency of Flow Rate Verification Bi-Weekly Appendix C Requirements - Monitoring Methodology Date Established 07/01/2000 Monitor Type SLAMS Thermo – Monitor Make - Model TEOM 1405-S Method Code 079 PM Monitor Flow Type Low Volume PM Monitor Collection Type Size Specific Method Type (FRM, FEM, ARM) FEM Appendix D Requirements - Network Design Criteria Site Type Population Exposure Basic Monitoring Objective NAAQS Comparison Monitoring Scale (Spatial Scale Represented) Neighborhood Monitoring Season Jan-Dec Network Meets Minimum Number of Monitors Required? Yes Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable Probe Inlet Height 3.4 meters 2016 Air Monitoring Network Plan (June 29, 2017) Page 122 of 171 Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway A Distance and Direction to Road Traffic Count (ADT) Nearest Major Roadway B Distance and Direction to Road Traffic Count (ADT) Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) 360º Not relevant Not Applicable Not Relevant No Obstruction > 20 meters > 20 meters No Furnace Flue Higley Rd 117 meters, E 11,500 Williams Field Rd 410 meters, S 11,500 Paved Page 123 of 171 HUMBOLDT MOUNTAIN County ID: HM AQS ID: 04-013-9508 Address: E State Hwy 562- FAA Radar Station, Tonto National Forest Coordinates: 33.98280N, -111.79870W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant O3 Parameter Code 44201 Parameter Occurrence Code 1 Collection Frequency Continuous Analysis Method (sample filters only) Not Applicable Any Proposal to Remove or Move Monitor? No Is site suitable for comparison to PM2.5 NAAQS per Part Not Applicable 58.30? Are Data Comparable to Respective NAAQS? Yes Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed Annually 27 Number of Accuracy Audits Performed Annually 4 02/08/16 05/02/16 Dates of Accuracy Audits on Gaseous Analyzer 08/29/16 10/20/16 All Precision/Bias Reports Submitted to AQS? Yes Annual Data Certification Submitted? 04/07/17 Frequency of One-Point QC Check Bi-Weekly Frequency of Flow Rate Verification Not Applicable Appendix C Requirements - Monitoring Methodology Date Established 01/01/1993 Monitor Type SLAMS Monitor Make - Model Teledyne API – 400T Method Code 087 Method Type (FRM, FEM, ARM) FEM Appendix D Requirements - Network Design Criteria Site Type Max Ozone Concentration Basic Monitoring Objective NAAQS Comparison Monitoring Scale (Spatial Scale Represented) Regional Monitoring Season Jan-Dec Network Meets Minimum Number of Monitors Required? Yes Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable Probe Inlet Height 3.4 meters 2016 Air Monitoring Network Plan (June 29, 2017) Page 124 of 171 Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) 360º Teflon™ 6.9 seconds Not Relevant No Obstruction 6 meters > 20 meters No Furnace Flue Not Applicable Remote mountaintop location is reached by access road E State Hwy 562 Not Applicable Not Applicable Dirt/Vegetated Page 125 of 171 MESA County ID: ME AQS ID: 04-013-1003 Address: 310 S Brooks, Mesa Coordinates: 33.41045N, -111.86507W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information CO O3 42101 44201 Pollutant PM10 PM2.5 Parameter Code 81102 88101 Parameter Occurrence 1 1 1 3 Code Collection Frequency Continuous Continuous Continuous Continuous Analysis Method (sample Not Applicable Not Applicable Not Applicable Not Applicable filters only) Any Proposal to Remove No No No No or Move Monitor? Is site suitable for comparison to PM2.5 Not Applicable Not Applicable Not Applicable Yes NAAQS per Part 58.30? Are Data Comparable to Yes Yes Yes Yes Respective NAAQS? Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed 15 26 25 26 Annually Number of Accuracy Audits Performed 3 3 4 4 Annually 02/11/16 02/11/16 Dates of Accuracy Audits 03/23/16 04/06/16 02/25/16 02/25/16 on Gaseous & PM 09/07/16 05/05/16 05/05/16 05/05/16 Analyzers 11/03/16 12/14/16 10/19/16 10/19/16 All Precision/Bias Reports Submitted to Yes Yes Yes Yes AQS? Annual Data Certification 04/07/17 04/07/17 04/07/17 04/07/17 Submitted? Frequency of One-Point Bi-Weekly Bi-Weekly Not Applicable Not Applicable QC Check Frequency of Flow Rate Not Applicable Not Applicable Bi-Weekly Bi-Weekly Verification Appendix C Requirements - Monitoring Methodology 2016 Air Monitoring Network Plan (June 29, 2017) Page 126 of 171 Date Established Monitor Type Monitor Make - Model 01/01/1978 SLAMS Teledyne API – 300T 11/1/2012 SLAMS Teledyne API – 400T 11/1/2012 11/1/2012 SLAMS SLAMS Thermo - TEOM Thermo - TEOM 1405-DF 1405-DF Note: The same monitor measures PM 10 and PM 2.5. Method Code 093 087 208 182 PM Monitor Flow Type Not Applicable Not Applicable Low Volume Low Volume PM Monitor Collection Not Applicable Not Applicable Dichotomous Dichotomous Type Method Type (FRM, FRM FEM FEM FEM FEM, ARM) Appendix D Requirements - Network Design Criteria Population Population Population Population Site Type Exposure Exposure Exposure Exposure Basic Monitoring NAAQS NAAQS NAAQS NAAQS Objective Comparison Comparison Comparison Comparison Monitoring Scale (Spatial Neighborhood Neighborhood Neighborhood Neighborhood Scale Represented) Monitoring Season Sep-Mar Jan-Dec Jan-Dec Jan-Dec Network Meets Minimum Number of Monitors Yes Yes Yes Yes Required? Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between Not Applicable Not Applicable Not Applicable Not Applicable collocated samplers Distance between PM10 Not Applicable Not Applicable 0 meters 0 meters and PM2.5 monitors NOTE: The TEOM 1405-DF collects air for both PM 10 and PM 2.5 measurements through the same inlet. Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof 5 meters 360º 5 meters 360º 6.2 meters 360º 6.9 meters 360º Teflon™ Teflon™ Not Applicable Not Applicable 6.3 seconds 6.3 seconds Not Applicable Not Applicable Not Relevant Not Relevant Not Relevant Not Relevant No Obstruction No Obstruction No Obstruction No Obstruction > 20 meters > 20 meters > 20 meters > 20 meters 2016 Air Monitoring Network Plan (June 29, 2017) Page 127 of 171 Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover > 20 meters > 20 meters > 20 meters > 20 meters No Furnace Flue Broadway Rd. No Furnace Flue Broadway Rd. No Furnace Flue No Furnace Flue Broadway Rd. Broadway Rd. 305 meters, S 305 meters, S 305 meters, S 305 meters, S 33,000 Paved/Gravel 33,000 Paved/Gravel 33,000 Paved/Gravel 33,000 Paved/Gravel 2016 Air Monitoring Network Plan (June 29, 2017) Page 128 of 171 NORTH PHOENIX County ID: NP AQS ID: 04-013-1004 Address: 601 E Butler Dr., Phoenix Coordinates: 33.56033N, -112.06626W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information CO O3 42101 44201 Pollutant PM10 PM2.5 Parameter Code 81102 88101 Parameter Occurrence 1 1 1 3 Code Collection Frequency Continuous Continuous Continuous Continuous Analysis Method (sample Not Applicable Not Applicable Not Applicable Not Applicable filters only) Any Proposal to Remove or Move Yes No No No Monitor? Is site suitable for comparison to PM2.5 Not Applicable Not Applicable Not Applicable Yes NAAQS per Part 58.30? Are Data Comparable to Yes Yes Yes Yes Respective NAAQS? Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed 6 26 25 26 Annually Number of Accuracy Audits Performed 1 3 4 4 Annually 05/02/16 05/02/16 Dates of Accuracy 05/17/16 09/06/16 09/06/16 Audits on Gaseous & 03/22/16 08/22/16 10/18/16 10/18/16 PM Analyzers 12/13/16 11/28/16 11/28/16 All Precision/Bias Reports Submitted to Yes Yes Yes Yes AQS? Annual Data 04/07/17 04/07/17 04/07/17 04/07/17 Certification Submitted? Frequency of One-Point Bi-Weekly Bi-Weekly Not Applicable Not Applicable QC Check Frequency of Flow Rate Not Applicable Not Applicable Bi-Weekly Bi-Weekly Verification 2016 Air Monitoring Network Plan (June 29, 2017) Page 129 of 171 Appendix C Requirements - Monitoring Methodology Date Established 01/01/1974 01/01/1975 9/1/2011 9/1/2011 Monitor Type SLAMS SLAMS SLAMS SLAMS Teledyne API – Teledyne API – Thermo - TEOM Thermo - TEOM Monitor Make - Model 300T 400T 1405-DF 1405-DF Note: The same monitor measures PM 10 and PM 2.5. Method Code 093 087 208 182 PM Monitor Flow Type Not Applicable Not Applicable Low Volume Low Volume PM Monitor Collection Not Applicable Not Applicable Dichotomous Dichotomous Type Method Type (FRM, FRM FEM FEM FEM FEM, ARM) Appendix D Requirements - Network Design Criteria Population Population Population Population Site Type Exposure Exposure Exposure Exposure Basic Monitoring NAAQS NAAQS NAAQS NAAQS Objective Comparison Comparison Comparison Comparison Monitoring Scale (Spatial Neighborhood Neighborhood Neighborhood Neighborhood Scale Represented) Monitoring Season Sep-Mar Jan-Dec Jan-Dec Jan-Dec Network Meets Minimum Number of Yes Yes Yes Yes Monitors Required? Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between Not Applicable Not Applicable Not Applicable Not Applicable collocated samplers Distance between PM10 Not Applicable Not Applicable 0 meters 0 meters and PM2.5 monitors NOTE: The TEOM 1405-DF collects air for both PM 10 and PM 2.5 measurements through the same inlet. Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof 4.6 meters 360º 4.6 meters 360º 4.5 meters 360º 4.5 meters 360º Teflon™ Teflon™ Not Applicable Not Applicable 4.5 seconds 4.5 seconds Not Applicable Not Applicable Not Relevant Not Relevant Not Relevant Not Relevant No Obstruction No Obstruction No Obstruction No Obstruction 2016 Air Monitoring Network Plan (June 29, 2017) Page 130 of 171 Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters No Furnace Flue th 7 Street No Furnace Flue th 7 Street No Furnace Flue No Furnace Flue 7th Street 7th Street 75 meters, E 75 meters, E 75 meters, E 75 meters, E 32,000 32,000 32,000 32,000 Gravel Gravel Gravel Gravel Note: The CO monitor’s spacing from nearest roadway and its associated ADT count did not meet EPA requirements. This was resolved when the monitor’s operation was discontinued in 2016. Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) Page 131 of 171 PINNACLE PEAK County ID: PP AQS ID: 04-013-2005 Address: 24295 N Alma School Rd., Scottsdale Coordinates: 33.70632N, -111.85562W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant O3 Parameter Code 44201 Parameter Occurrence Code 1 Collection Frequency Continuous Analysis Method (sample filters only) Not Applicable Any Proposal to Remove or Move Monitor? No Is site suitable for comparison to PM2.5 NAAQS per Part Not Applicable 58.30? Are Data Comparable to Respective NAAQS? Yes Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed Annually 23 Number of Accuracy Audits Performed 4 02/02/16 03/15/16 Dates of Accuracy Audits on Gaseous Analyzer 07/07/16 12/19/16 All Precision/Bias Reports Submitted to AQS? Yes Annual Data Certification Submitted? 04/07/17 Frequency of One-Point QC Check Bi-Weekly Frequency of Flow Rate Verification Not Applicable Appendix C Requirements - Monitoring Methodology Date Established 02/01/1988 Monitor Type SLAMS Monitor Make - Model Teledyne API – 400T Method Code 087 Method Type (FRM, FEM, ARM) FEM Appendix D Requirements - Network Design Criteria Site Type Max Ozone Concentration Basic Monitoring Objective NAAQS Comparison Monitoring Scale (Spatial Scale Represented) Urban Monitoring Season Jan-Dec Network Meets Minimum Number of Monitors Required? Yes -Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable Probe Inlet Height 6.1 meters 2016 Air Monitoring Network Plan (June 29, 2017) Page 132 of 171 Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) 360º Teflon™ 4.3 seconds Not Relevant No Obstruction 6 meters 6 meters No Furnace Flue Happy Valley Rd. 61 meters, S 16,000 Paved/Grass Page 133 of 171 RIO VERDE County ID: RV AQS ID: 04-013-9706 Address: 25608 N Forest Rd., Rio Verde Coordinates: 33.71881N, -111.67183W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant O3 Parameter Code 44201 Parameter Occurrence Code 1 Collection Frequency Continuous Analysis Method (sample filters only) Not Applicable Any Proposal to Remove or Move Monitor? Yes Is site suitable for comparison to PM2.5 NAAQS per Part Not Applicable 58.30? Are Data Comparable to Respective NAAQS? Yes Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed Annually 26 Number of Accuracy Audits Performed Annually 4 03/14/16 06/07/16 Dates of Accuracy Audits on Gaseous Analyzer 10/11/16 12/06/16 All Precision/Bias Reports Submitted to AQS? Yes Annual Data Certification Submitted? 04/07/17 Frequency of One-Point QC Check Bi-Weekly Frequency of Flow Rate Verification Not Applicable Appendix C Requirements - Monitoring Methodology Date Established 01/01/1997 Monitor Type SLAMS Monitor Make - Model Teledyne API – 400T Method Code 087 Method Type (FRM, FEM, ARM) FEM Appendix D Requirements - Network Design Criteria Site Type Max Ozone Concentration Basic Monitoring Objective NAAQS Comparison Monitoring Scale (Spatial Scale Represented) Urban Monitoring Season Jan-Dec Network Meets Minimum Number of Monitors Required? Yes Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable Probe Inlet Height 6.2 meters 2016 Air Monitoring Network Plan (June 29, 2017) Page 134 of 171 Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) 360º Teflon™ 19.95 seconds Not Relevant No Obstructions > 20 meters > 20 meters No Furnace Flue Forest Rd 43 meters, E 4,766 Paved Page 135 of 171 SOUTH PHOENIX County ID: SP AQS ID: 04-013-4003 Address: 33 W Tamarisks, Phoenix Coordinates: 33.40316N, -112.07533W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information CO O3 42101 44201 1 1 Continuous Continuous Pollutant PM10 PM2.5 Parameter Code 81102 88101 Parameter Occurrence Code 1 3 Collection Frequency Continuous Continuous Analysis Method (sample Not Applicable Not Applicable Not Applicable Not Applicable filters only) Any Proposal to Remove or No No No No Move Monitor? Is site suitable for comparison to PM2.5 NAAQS Not Applicable Not Applicable Not Applicable Yes per Part 58.30? Are Data Comparable to Yes Yes Yes Yes Respective NAAQS? Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks 12 26 27 27 Performed Annually Number of Accuracy Audits 3 4 4 4 Performed Annually 02/17/16 02/03/16 02/03/16 03/04/16 Dates of Accuracy Audits on 04/13/16 05/11/16 05/11/16 09/14/16 Gaseous & PM Analyzers 11/09/16 08/03/16 08/03/16 10/13/16 12/07/16 11/09/16 11/09/16 All Precision/Bias Reports Yes Yes Yes Yes Submitted to AQS? Annual Data Certification 04/07/17 04/07/17 04/07/17 04/07/17 Submitted? Frequency of One-Point QC Bi-Weekly Bi-Weekly Not Applicable Not Applicable Check Frequency of Flow Rate Not Applicable Not Applicable Bi-Weekly Bi-Weekly Verification Appendix C Requirements - Monitoring Methodology Date Established 10/01/1999 10/01/1999 7/1/2007 05/01/2010 Monitor Type SLAMS SLAMS SLAMS SLAMS 2016 Air Monitoring Network Plan (June 29, 2017) Page 136 of 171 Monitor Make - Model Teledyne API – 300T Teledyne API – 400T Thermo TEOM 1405DF Note: The same monitor measures PM 10 and PM 2.5. Thermo TEOM 1405DF Method Code 093 087 208 182 PM Monitor Flow Type Not Applicable Not Applicable Low Volume Low Volume PM Monitor Collection Type Not Applicable Not Applicable Dichotomous Dichotomous Method Type (FRM, FEM, FRM FEM FEM FEM ARM) Appendix D Requirements - Network Design Criteria Population Population Population Population Site Type Exposure Exposure Exposure Exposure NAAQS NAAQS NAAQS NAAQS Basic Monitoring Objective Comparison Comparison Comparison Comparison Monitoring Scale (Spatial Neighborhood Neighborhood Neighborhood Neighborhood Scale Represented) Monitoring Season Jan-Dec Jan-Dec Jan-Dec Jan-Dec Network Meets Minimum Number of Monitors Yes Yes Yes Yes Required? Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated Not Applicable Not Applicable Not Applicable Not Applicable samplers Distance between PM10 and Not Applicable Not Applicable 0 meters 0 meters PM2.5 monitors Note: The TEOM 1405-DF collects air for both PM 10 and PM 2.5 measurements through the same inlet. Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue 5.5 meters 360º Teflon™ 5.5 meters 360º Teflon™ 4.3 meters 360º Not Applicable 4.3 meters 360º Not Applicable 4.7 seconds 4.7 seconds Not Applicable Not Applicable Not Relevant Not Relevant Not Relevant Not Relevant No Obstruction No Obstruction No Obstruction No Obstruction 11 meters 11 meters 11 meters 11 meters 11 meters 11 meters 11 meters 11 meters No Furnace Flue No Furnace Flue No Furnace Flue No Furnace Flue 2016 Air Monitoring Network Plan (June 29, 2017) Page 137 of 171 Nearest Major Roadway A Distance and Direction to Road Traffic Count (ADT) Nearest Major Roadway B Distance and Direction to Road Traffic Count (ADT) Groundcover Central Ave. Central Ave. Central Ave. Central Ave. 168 meters, E 168 meters, E 165 meters, E 165 meters, E 24,000 Broadway Rd 24,000 Broadway Rd 24,000 Broadway Rd 24,000 Broadway Rd 385 meters, N 385 meters, N 385 meters, N 385 meters, N 18,000 Paved 18,000 Paved 18,000 Paved 18,000 Paved 2016 Air Monitoring Network Plan (June 29, 2017) Page 138 of 171 SOUTH SCOTTSDALE County ID: SS AQS ID: 04-013-3003 Address: 2857 N Miller Rd., Scottsdale Coordinates: 33.47968N, -111.91721W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant CO O3 PM10 Parameter Code 42101 44201 81102 Parameter Occurrence Code 1 1 1 Collection Frequency Continuous Continuous Continuous Analysis Method (sample filters only) Not Applicable Not Applicable Not Applicable Any Proposal to Remove or Move Yes No No Monitor? Is site suitable for comparison to PM2.5 Not Applicable Not Applicable Not Applicable NAAQS per Part 58.30? Are Data Comparable to Respective Yes Yes Yes NAAQS? Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed 6 25 15 Annually Number of Accuracy Audits Performed 1 4 4 Annually 02/10/16 02/10/16 Dates of Accuracy Audits on Gaseous & 09/07/16 10/17/16 03/09/16 PM Analyzers 10/31/16 11/28/16 11/28/16 12/12/16 All Precision/Bias Reports Submitted to Yes Yes Yes AQS? Annual Data Certification Submitted? 04/07/17 04/07/17 04/07/17 Frequency of One-Point QC Check Bi-Weekly Bi-Weekly Not Applicable Frequency of Flow Rate Verification Not Applicable Not Applicable Bi-Weekly Appendix C Requirements - Monitoring Methodology Date Established 01/01/1974 01/01/1974 09/01/2012 Monitor Type SLAMS SLAMS SLAMS Teledyne API – Teledyne API – Thermo - TEOM Monitor Make - Model 300T 400T 1405-S Method Code 093 087 079 PM Monitor Flow Type Not Applicable Not Applicable Low Volume PM Monitor Collection Type Not Applicable Not Applicable Size Specific Method Type (FRM, FEM, ARM) FRM FEM FEM Appendix D Requirements - Network Design Criteria 2016 Air Monitoring Network Plan (June 29, 2017) Page 139 of 171 Site Type Basic Monitoring Objective Population Exposure NAAQS Comparison Population Exposure NAAQS Comparison Population Exposure NAAQS Comparison Monitoring Scale (Spatial Scale Neighborhood Neighborhood Neighborhood Represented) Monitoring Season Sep-Mar Jan-Dec Jan-Dec Network Meets Minimum Number of Yes Yes Yes Monitors Required? Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable Not Applicable Not Applicable Probe Inlet Height 5.8 meters 5.8 meters 6.1 meters Airflow Arc 360º 360º 360º Probe Sample Line Material Teflon™ Teflon™ Not Applicable Pollutant Sample Residence Time 8.0 seconds 8.0 seconds Not Applicable Distance from Supporting Structure Not Relevant Not Relevant Not Relevant Distance from Obstructions on Roof No Obstruction No Obstruction No Obstruction Distance from Obstructions Not on Roof > 20 meters > 20 meters > 20 meters Distance from Closest Tree Dripline > 20 meters > 20 meters > 20 meters No Furnace Distance to Furnace Flue No Furnace Flue No Furnace Flue Flue Nearest Major Roadway A Thomas Thomas Thomas Distance and Direction to Road 66 meters, N 66 meters, N 62 meters, N Traffic Count (ADT) 33,000 33,000 33,000 Nearest Major Roadway B Miller Rd. Miller Rd. Miller Rd. Distance and Direction to Road 32 meters, W 32 meters, W 35 meters, W Traffic Count (ADT) 13,000 13,000 13,000 Note: The CO monitor’s spacing from nearest roadway and its associated ADT count did not meet EPA requirements. This was resolved when the monitor’s operation was discontinued in 2016. Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) Paved Paved Paved Page 140 of 171 TEMPE County ID: TE AQS ID: 04-013-4005 Address: 1525 S College Ave., Tempe Coordinates: 33.4124N, -111.93473W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information CO O3 42101 44201 1 1 Continuous Continuous Pollutant PM10 PM2.5 Parameter Code 81102 88101 Parameter Occurrence Code 1 3 Collection Frequency Continuous Continuous Analysis Method (sample Not Applicable Not Applicable Not Applicable Not Applicable filters only) Any Proposal to Remove or Yes No No No Move Monitor? Is site suitable for comparison to PM2.5 NAAQS Not Applicable Not Applicable Not Applicable Yes per Part 58.30? Are Data Comparable to Yes Yes Yes Yes Respective NAAQS? Appendix A Requirements - Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks 7 26 26 26 Performed Annually Number of Accuracy Audits 1 3 3 3 Performed Annually 05/12/16 03/15/16 03/15/16 Dates of Accuracy Audits on 03/15/16 07/07/16 11/08/16 11/08/16 Gaseous & PM Analyzers 11/21/16 11/09/16 11/09/16 All Precision/Bias Reports Yes Yes Yes Yes Submitted to AQS? Annual Data Certification 04/07/17 04/07/17 04/07/17 04/07/17 Submitted? Frequency of One-Point QC Bi-Weekly Bi-Weekly Not Applicable Not Applicable Check Frequency of Flow Rate Not Applicable Not Applicable Bi-Weekly Bi-Weekly Verification Appendix C Requirements - Monitoring Methodology Date Established 07/01/2000 07/01/2000 3/1/2012 3/1/2012 Monitor Type SLAMS SLAMS SLAMS SLAMS Thermo Thermo Teledyne API Teledyne API Monitor Make - Model TEOM 1405TEOM 1405– 300T – 400T DF DF 2016 Air Monitoring Network Plan (June 29, 2017) Page 141 of 171 Note: The same monitor measures PM 10 and PM 2.5. Method Code 093 087 208 182 PM Monitor Flow Type Not Applicable Not Applicable Low Volume Low Volume PM Monitor Collection Type Not Applicable Not Applicable Dichotomous Dichotomous Method Type (FRM, FEM, FRM FEM FEM FEM ARM) Appendix D Requirements - Network Design Criteria Population Population Population Population Site Type Exposure Exposure Exposure Exposure NAAQS NAAQS NAAQS NAAQS Basic Monitoring Objective Comparison Comparison Comparison Comparison Monitoring Scale (Spatial Neighborhood Neighborhood Neighborhood Neighborhood Scale Represented) Monitoring Season Sep-Mar Jan-Dec Jan-Dec Jan-Dec Network Meets Minimum Number of Monitors Yes Yes Yes Yes Required? Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated Not Applicable Not Applicable Not Applicable Not Applicable samplers Distance between PM10 and Not Applicable Not Applicable 0 meters 0 meters PM2.5 monitors Note: The TEOM 1405-DF collects air for both PM 10 and PM 2.5 measurements through the same inlet. Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway Distance and Direction to Road 4.4 meters 360º Teflon™ 4.4 meters 360º Teflon™ 2.7 meters 360º Not Applicable 3.7 meters 360º Not Applicable 4.7 seconds 4.7 seconds Not Applicable Not Applicable Not Relevant Not Relevant Not Relevant Not Relevant No Obstruction No Obstruction No Obstruction No Obstruction > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters No Furnace Flue Apache Blvd. No Furnace Flue Apache Blvd. No Furnace Flue Apache Blvd. No Furnace Flue Apache Blvd. 370 meters, N 370 meters, N 370 meters, N 370 meters, N 2016 Air Monitoring Network Plan (June 29, 2017) Page 142 of 171 Traffic Count (ADT) Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) 32,170 Gravel 32,170 Gravel 32,170 Gravel 32,170 Gravel Page 143 of 171 THIRTY-THIRD County ID: TT AQS ID: 04-013-4020 Address: 3248 W Moreland Ave., Phoenix Coordinates: 33.46155N, -112.12815W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant CO NO2 PM2.5 Parameter Code 42101 42602 88101 Parameter Occurrence Code 1 1 3 Collection Frequency Continuous Continuous Continuous Analysis Method (sample filters only) Not Applicable Not Applicable Not Applicable Any Proposal to Remove or Move Monitor? Yes No Yes Is site suitable for comparison to PM2.5 Not Applicable Not Applicable Yes NAAQS per Part 58.30? Are Data Comparable to Respective No Yes Yes NAAQS? Appendix A Requirements - Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed 6 25 6 Annually Number of Accuracy Audits Performed 0 3 1 Annually No Dates (Analyzer 03/10/16 Dates of Accuracy Audits on Gaseous & removed before 04/08/16 02/11/16 PM Analyzers scheduled audits 08/11/16 were required.) All Precision/Bias Reports Submitted to Yes Yes Yes AQS? Annual Data Certification Submitted? 04/07/17 04/07/17 04/07/17 Frequency of One-Point QC Check Bi-Weekly Bi-Weekly Not Applicable Frequency of Flow Rate Verification Not Applicable Not Applicable Bi-Weekly Appendix C Requirements - Monitoring Methodology Date Established 09/01/2015 09/01/2015 09/01/2015 Monitor Type SPM SLAMS SPM Teledyne API – Teledyne API Thermo - TEOM Monitor Make - Model 300T 200T 1405-DF Method Code 093 099 182 Method Type (FRM, FEM, ARM) FRM FRM FEM Appendix D Requirements - Network Design Criteria SourceSite Type Source-Oriented Source-Oriented Oriented NAAQS NAAQS NAAQS Basic Monitoring Objective Comparison Comparison Comparison Monitoring Scale (Spatial Scale Represented) Micro Micro Micro 2016 Air Monitoring Network Plan (June 29, 2017) Page 144 of 171 Monitoring Season Network Meets Minimum Number of Monitors Required? Jan-Mar Jan-Dec Jan-Mar Yes Yes Yes Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable Not Applicable Not Applicable Probe Inlet Height 4.3 meters 4.3 meters 3.6 meter Airflow Arc 360º 360º 360º Probe Sample Line Material Teflon™ Teflon™ Not Applicable Pollutant Sample Residence Time 4.4 4.4 sec Not Applicable Distance from Supporting Structure Not Relevant Not Relevant Not Relevant Distance from Obstructions on Roof No Obstruction No Obstruction No Obstruction Distance from Obstructions Not on Roof > 10 meters > 10 meters > 10 meters Distance from Closest Tree Dripline > 10 meters > 10 meters > 10 meters No Furnace Distance to Furnace Flue No Furnace Flue No Furnace Flue Flue Nearest Major Roadway I-10 I-10 I-10 Distance and Direction to Road 13.5 meters, N 13.5 meters, N 13.5 meters, N 245,632 245,632 Traffic Count (ADT) 245,632 Groundcover Gravel Gravel Gravel 2016 Air Monitoring Network Plan (June 29, 2017) Page 145 of 171 WEST CHANDLER County ID: WC AQS ID: 04-013-4004 Address: 275 S Ellis, Chandler Coordinates: 33.29898N, -111.88431W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant CO O3 PM10 Parameter Code 42101 44201 81102 Parameter Occurrence Code 1 1 1 Collection Frequency Continuous Continuous Continuous Analysis Method (sample filters only) Not Applicable Not Applicable Not Applicable Any Proposal to Remove or Move No No No Monitor? Is site suitable for comparison to PM2.5 Not Applicable Not Applicable Not Applicable NAAQS per Part 58.30? Are Data Comparable to Respective Yes Yes Yes NAAQS? Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed 15 26 27 Annually Number of Accuracy Audits Performed 3 4 4 Annually 04/13/16 03/04/16 09/14/16 Dates of Accuracy Audits on Gaseous & 04/27/16 06/08/16 03/04/16 PM Analyzers 07/07/16 09/14/16 10/13/16 10/13/16 12/07/16 All Precision/Bias Reports Submitted to Yes Yes Yes AQS? Annual Data Certification Submitted? 04/07/17 04/07/17 04/07/17 Frequency of One-Point QC Check Bi-Weekly Bi-Weekly Not Applicable Frequency of Flow Rate Verification Not Applicable Not Applicable Bi-Weekly Appendix C Requirements - Monitoring Methodology Date Established 07/01/2000 07/01/2000 07/01/2000 Monitor Type SLAMS SLAMS SLAMS Teledyne API – Teledyne API – Thermo – Monitor Make - Model 300T 400T TEOM 1405-S Method Code 093 087 079 PM Monitor Flow Type Not Applicable Not Applicable Low Volume PM Monitor Collection Type Not Applicable Not Applicable Size Specific Method Type (FRM, FEM, ARM) FRM FEM FEM Appendix D Requirements - Network Design Criteria 2016 Air Monitoring Network Plan (June 29, 2017) Page 146 of 171 Site Type Basic Monitoring Objective Population Exposure NAAQS Comparison Population Exposure NAAQS Comparison Population Exposure NAAQS Comparison Monitoring Scale (Spatial Scale Neighborhood Neighborhood Middle Represented) Monitoring Season Jan-Dec Jan-Dec Jan-Dec Network Meets Minimum Number of Yes Yes Yes Monitors Required? Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable Not Applicable Not Applicable Probe Inlet Height 4.4 meters 4.4 meters 4.4 meters Airflow Arc 360º 360º 360º Probe Sample Line Material Teflon™ Teflon™ Not Applicable Pollutant Sample Residence Time 4.5 seconds 4.5 seconds Not Applicable Distance from Supporting Structure Not Relevant Not Relevant Not Relevant Distance from Obstructions on Roof No Obstruction No Obstruction No Obstruction Distance from Obstructions Not on Roof 14 meters 14 meters 14 meters Distance from Closest Tree Dripline 14 meters 14 meters 14 meters Distance to Furnace Flue No Furnace Flue No Furnace Flue No Furnace Flue Nearest Major Roadway A Frye Rd. Frye Rd. Frye Rd. Distance and Direction to Road 30 meters, S 30 meters, S 30 meters, S Traffic Count (ADT) 10,566 10,566 10,566 Groundcover Pavement/Gravel Pavement/Gravel Pavement/Gravel 2016 Air Monitoring Network Plan (June 29, 2017) Page 147 of 171 WEST 43RD AVENUE County ID: WF AQS ID: 04-013-4009 Address: 3940 W Broadway Rd., Phoenix Coordinates: 33.40642N, -112.14434W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant PM10 Parameter Code 81102 Parameter Occurrence Code 1 Collection Frequency Continuous Analysis Method (sample filters only) Not Applicable Any Proposal to Remove or Move Monitor? No Is site suitable for comparison to PM2.5 NAAQS per Part Not Applicable 58.30? Are Data Comparable to Respective NAAQS? Yes Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed Annually 27 Number of Accuracy Audits Performed Annually & 3 03/09/16 Dates of Accuracy Audits on the PM Analyzer 11/28/16 12/12/16 All Precision/Bias Reports Submitted to AQS? Yes Annual Data Certification Submitted? 04/07/17 Frequency of One-Point QC Check Not Applicable Frequency of Flow Rate Verification Bi-Weekly Appendix C Requirements - Monitoring Methodology Date Established 04/01/2002 Monitor Type SLAMS Monitor Make - Model Thermo - TEOM 1405-S Method Code 079 PM Monitor Flow Type Low Volume PM Monitor Collection Type Size Specific Method Type (FRM, FEM, ARM) FEM Appendix D Requirements - Network Design Criteria Site Type Highest Concentrations Basic Monitoring Objective NAAQS Comparison Monitoring Scale (Spatial Scale Represented) Middle Monitoring Season Jan-Dec Network Meets Minimum Number of Monitors Required? Yes Appendix E Requirements - Probe and Monitoring Path Siting Criteria Distance between collocated samplers Not Applicable 2016 Air Monitoring Network Plan (June 29, 2017) Page 148 of 171 Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway A Distance and Direction to Road Traffic Count (ADT) Nearest Major Roadway B Distance and Direction to Road Traffic Count (ADT) Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) 5 meters 360º Not Applicable Not Applicable Not Relevant No Obstruction > 20 meters > 20 meters No Furnace Flue Broadway Rd. (E of 35th Ave.) 37 meters, S 12,501 th 35 Ave. (N of Broadway Rd.) 1 kilometer, E 19,699 Gravel Page 149 of 171 WEST PHOENIX County ID: WP AQS ID: 04-013-0019 Address: 3847 W Earll, Phoenix Coordinates: 33.48385N, -112.14257W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant CO NO2 O3 PM10 Note: This is a collocated site for PM 2.5. PM2.5 Primary PM2.5 Secondary Parameter 42101 42602 44201 81102 88101 88101 Code Parameter Occurrence 1 1 1 1 3 2 Code Collection Continuous Continuous Continuous Continuous Continuous 1 in 12 days Frequency Analysis As per 40 Method Not Not Not Not Not CFR Part 50, (filter samples Applicable Applicable Applicable Applicable Applicable Appendix L only) Analytical InterLaboratory Not Not Not Not Not Mountain (filter samples Applicable Applicable Applicable Applicable Applicable Labs, Inc. only) Any Proposal to Remove or No No No No No No Move Monitor? Is site suitable for Not Not Not Not Yes Yes comparison to Applicable Applicable Applicable Applicable PM2.5 NAAQS per Part 58.30? Are Data Comparable to Yes Yes Yes Yes Yes Yes Respective NAAQS? Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision 26 26 26 23 24 11 Checks Performed Annually Number of Not Not Not Not 31 Collocated Applicable Applicable Applicable Applicable Assessments 2016 Air Monitoring Network Plan (June 29, 2017) Page 150 of 171 (QA Filter Samples) Number of Accuracy Audits Performed Annually Dates of Accuracy Audits on Gaseous & PM Analyzers / Sampler Precision/Bias Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Date Established Monitor Type Monitor Make - Model 4 4 5 3 3 2 03/22/16 09/06/16 11/29/16 12/13/16 02/09/16 07/26/16 09/06/16 12/22/16 02/09/16 02/23/16 07/26/16 09/06/16 12/13/16 03/21/16 09/06/16 10/18/16 03/21/16 09/06/16 10/18/16 03/24/16 10/11/16 Yes Yes Yes Yes Yes Yes 04/07/17 04/07/17 04/07/17 04/07/17 04/07/17 04/07/17 Bi-Weekly Bi-Weekly Bi-Weekly Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Bi-Weekly Bi-Weekly Bi-weekly Appendix C Requirements - Monitoring Methodology 01/01/84 05/24/90 01/01/84 02/01/88 09/01/05 06/13/00 SLAMS SLAMS SLAMS Teledyne API 200T Teledyne API 400T SLAMS Thermo TEOM 1405DF SLAMS Teledyne API 300T SLAMS Thermo TEOM 1405DF 208 182 145 Low Volume Low Volume Low Volume Thermo Partisol 2025 Notes: The same monitor collects PM 10 and PM 2.5 hourly (continuous) measurements. The collocated Partisol 2025 sampler collects a QA filter sample once every 12 days. Method Code PM Monitor Flow Type PM Monitor Collection Type Method Type (FRM, FEM, ARM) 093 Not Applicable 099 Not Applicable 087 Not Applicable Not Applicable Not Applicable Not Applicable Dichotomous Dichotomous Size Specific & Sequential FRM FRM FEM FEM FEM FRM Appendix D Requirements - Network Design Criteria 2016 Air Monitoring Network Plan (June 29, 2017) Page 151 of 171 Site Type Basic Monitoring Objective Monitoring Scale (Spatial Scale Represented) Monitoring Season Network Meets Minimum Number of Monitors Required? Distance between collocated PM2.5 monitors Population Exposure Population Exposure Population Exposure Population Exposure Highest Concentratio n Highest Concentratio n NAAQS Comparison NAAQS Comparison NAAQS Comparison NAAQS Comparison NAAQS Comparison NAAQS Comparison Neighborhoo d Neighborhood Neighborhood Neighborhood Neighborhood Neighborhood Jan-Dec Jan-Dec Jan-Dec Jan-Dec Jan-Dec Jan-Dec Yes Yes Yes Yes Yes Yes Appendix E Requirements - Probe and Monitoring Path Siting Criteria Not Applicable Not Applicable Not Applicable 2 meters 2 meters 2 meters Note: Following site improvements in 2016, the secondary monitor’s distance to the primary now meets EPA specifications. Distance between PM10 and PM2.5 monitors Not Applicable Not Applicable Not Applicable 0 meters 0 meters 2 meters Note: The TEOM 1405-DF collects air for both PM 10 and PM 2.5 measurements through the same inlet. Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Filter Sample Material Distance from Supporting Structure 4.3 meters 4.3 meters 4.3 meters 4.3 meters 4.3 meters 2.8 meters 360º 360º 360º Teflon™ Teflon™ 360º Not Applicable 360º Teflon™ 360º Not Applicable 5.0 seconds 5.0 seconds 5.0 seconds Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Teflon™ Not Relevant Not Relevant Not Relevant Not Relevant Not Relevant Not Relevant 2016 Air Monitoring Network Plan (June 29, 2017) Teflon™ Page 152 of 171 Distance from Obstructions on Roof Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover No Obstruction No Obstruction No Obstruction No Obstruction No Obstruction No Obstruction > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters > 20 meters No Furnace Flue No Furnace Flue No Furnace Flue No Furnace Flue No Furnace Flue No Furnace Flue Thomas Rd. Thomas Rd. Thomas Rd. Thomas Rd. Thomas Rd. Thomas Rd. 360 meters, S 360 meters, S 360 meters, S 360 meters, S 360 meters, S 360 meters, S 29,000 29,000 29,000 29,000 29,000 29,000 Gravel Gravel Gravel Gravel Gravel Gravel 2016 Air Monitoring Network Plan (June 29, 2017) Page 153 of 171 ZUNI HILLS County ID: ZH AQS ID: 04-013-4016 Address: 10851 W Williams Rd., Sun City Coordinates: 33.68674N, -112.29417W Metropolitan Statistical Area (MSA): 6200 Phoenix-Mesa General Information Pollutant PM10 Parameter Code 81102 Parameter Occurrence Code 1 Collection Frequency Continuous Analysis Method (sample filters only) Not Applicable Any Proposal to Remove or Move Monitor? No Is site suitable for comparison to PM2.5 NAAQS per Part Not Applicable 58.30? Are Data Comparable to Respective NAAQS? Yes Appendix A Requirements- Quality Assurance Requirements for SLAMS and SPMs Number of Precision Checks Performed Annually 25 Number of Accuracy Audits Performed Annually 4 06/09/16 09/01/16 Dates of Accuracy Audits on the PM Analyzer 10/12/16 12/08/16 All Precision/Bias Reports Submitted to AQS? Yes Annual Data Certification Submitted? 04/07/17 Frequency of One-Point QC Check Not Applicable Frequency of Flow Rate Verification Bi-Weekly Appendix C Requirements - Monitoring Methodology Date Established 12/01/09 Monitor Type SLAMS Monitor Make - Model Thermo - TEOM 1405-S Method Code 079 PM Monitor Flow Type Low Volume PM Monitor Collection Type Size Specific Method Type (FRM, FEM, ARM) FEM Appendix D Requirements - Network Design Criteria Site Type Population Exposure Basic Monitoring Objective NAAQS Comparison Monitoring Scale (Spatial Scale Represented) Neighborhood Scale Monitoring Season Jan-Dec Network Meets Minimum Number of Monitors Required? Yes Appendix E Requirements - Probe and Monitoring Path Siting Criteria 2016 Air Monitoring Network Plan (June 29, 2017) Page 154 of 171 Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions on Roof Distance from Obstructions Not on Roof Distance from Closest Tree Dripline Distance to Furnace Flue Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2016 Air Monitoring Network Plan (June 29, 2017) Not Applicable 2.3 meters 360º Not Applicable Not Applicable Not Relevant No Obstruction > 20 meters > 20 meters No Furnace Flue Williams Rd. 200 meters, N 2,567 Lawn/Dirt Page 155 of 171 APPENDIX III - PUBLIC NOTICE AND COMMENT INFORMATION 2016 Air Monitoring Network Plan (June 29, 2017) Page 156 of 171 2016 Public Notice Announcement Figure 17 shows the 2016 public notice and news release information. Figure 17. 2016 Public Announcement 2016 Air Monitoring Network Plan (June 29, 2017) Page 157 of 171 Public Meeting Attendance Figure 18 shows the 2016 public notice and news release information. Figure 18. Public Meeting Sign-In Sheet 2016 Air Monitoring Network Plan (June 30, 2017) Page 158 of 171 Public Comments Received This year, MAG submitted comments as shown below in Figure 19. In addition, we received internal comments pertaining to the style of the cover page and use of the new departmental logo. As a result, the document’s cover page now shows the new logo. Comments on MCAQD 2016 Air Monitoring Network Plan Maricopa Association of Governments Page Comment 16 In first line of fourth paragraph, revise the 1979 one-hour ozone standard from “0.012 ppm” to “0.12 ppm”. 19 In the second line of the first paragraph, revise “burning” to “burning of”. 19 In the seventh line of the first paragraph, suggest revising “dry deposition on plants, and” to “dry deposition,”. 23 In the third line of the first paragraph – “to meet the involved specifying” - it appears that there is a missing word(s). 23 In the fourth line of the first paragraph, revise “necesay7” to “necessary” and revise “tato” to “that”. 26 In the heading of Table 8, suggest revising “AQS Code” to “AQS ID” to be consistent with Table 7. 28 In the second line of the second paragraph, revise “AQS is” to “AQS are”. 30 In the first line of the second paragraph, delete “and”. 31 In the eighth line of the fourth paragraph, replace “Error! Reference source not found” with name of the referenced section. 44 In the third line of the first paragraph, revise “substituted the” to “substituted for the”. 45 In the fifth line of the first paragraph, revise “summaries” to “summarizes”. 51 In the heading of Figure 12, suggest removing “8/21/2016”. 55 In Table 29, revise “1.01†” to “1.01” in the row for Glendale, as this value does not equal a violation after rounding per Appendix K to 40 CFR Part 50. 56 In Table 30, revise “0” to “0.33” in the 3-Yr. Avg. Rate of Expected Exceedances column for Buckeye. 59 In the first line of the fourth paragraph, revise “For the Higley” to “The Higley”. 60 In the fourth line of the fourth paragraph, revise “advanced” to “advance”. 2016 Air Monitoring Network Plan (June 29, 2017) Page 159 of 171 Comments on MCAQD 2016 Air Monitoring Network Plan Maricopa Association of Governments Page Comment 62 In the fourth line of the second paragraph, revise “(PAMS), the” to “(PAMS), and the”. 76 In the third sentence of the first paragraph, suggest revising “monitors” to “monitored” since the Greenwood monitor is now closed. 76 In the fourth sentence of the first paragraph, suggest revising “operating” to “operated” since the Greenwood monitor is now closed. 86 In the second heading of the figure with a picture of the monitoring site, suggest moving “Phoenix” to same line as “Ave.,” to be consistent with the other site descriptions. 87 In the first line of the first paragraph, suggest revising “Wide ranges” to “A wide range”. 96 In the “Probe Sample Line Material” row of the table, suggest revising “Teflon” to TeflonTM” for consistency. 152 In the “AMNP” definition, suggest revising “EPA” to “U.S. EPA”. 152 In third line of the “Attainment” definition, suggest revising “EPA” to “U.S. EPA”. 153 In the “Continuous monitor” definition, suggest revising “Continuous monitor” to “Continuous Monitor” for consistency with other definition titles. 154 In the “MO” definition, revise “monitoring organization” to “Monitoring organization”. 155 In the first line of the “NCORE” definition, revise “site” to “is”. 155 In the first line of the “OAQPS” definition, suggest revising “Standards located” to “Standards, located”. 156 In the second line of the “PM10-2.5 definition, revise “as a lone a criteria” to “as a lone criteria”. 156 In the “Primary Standard” definition, suggest removing blank line between “Primary” and “Standard”. 157 In the “Secondary Standard” definition, suggest removing blank line between “Secondary” and “Standard”. Figure 19. Comments Received from MAG 2016 Air Monitoring Network Plan (June 29, 2017) Page 160 of 171 Maricopa County’s Response to Public Comments MCAQD’s Changes To Plan Document As Per MAG Comments Comments on MCAQD 2016 Air Monitoring Network Plan Maricopa Association of Governments Initial Page # Comment Final Page # 16 In first line of fourth paragraph, revise the 1979 one-hour ozone standard from “0.012 ppm” to “0.12 ppm”. 17 19 In the second line of the first paragraph, revise “burning” to “burning of”. 20 19 In the seventh line of the first paragraph, suggest revising “dry deposition on plants, and” to “dry deposition,”. 20 MCAQD Comment Changed as Suggested 23 In the third line of the first paragraph – “to meet the involved specifying” - it appears that there is a missing word(s). 25 Fixed paragraph and removed awkward sentence 23 In the fourth line of the first paragraph, revise “necesay7” to “necessary” and revise “tato” to “that”. 25 Changed as Suggested 26 In the heading of Table 8, suggest revising “AQS Code” to “AQS ID” to be consistent with Table 7. 28 Changed to “AQS ID#” 28 In the second line of the second paragraph, revise “AQS is” to “AQS are”. 30 30 In the first line of the second paragraph, delete “and”. 32 31 In the eighth line of the fourth paragraph, replace “Error! Reference source not found” with name of the referenced section. 33 Formatting Fixed 44 In the third line of the first paragraph, revise “substituted the” to “substituted for the”. 46 Changed as Suggested 2016 Air Monitoring Network Plan (June 29, 2017) Changed as Suggested Page 161 of 171 MCAQD’s Changes To Plan Document As Per MAG Comments Comments on MCAQD 2016 Air Monitoring Network Plan Maricopa Association of Governments Initial Page # Comment Final Page # 45 In the fifth line of the first paragraph, revise “summaries” to “summarizes”. 47 51 In the heading of Figure 12, suggest removing “8/21/2016”. 53 55 In Table 29, revise “1.01†” to “1.01” in the row for Glendale, as this value does not equal a violation after rounding per Appendix K to 40 CFR Part 50. 57 56 In Table 30, revise “0” to “0.33” in the 3-Yr. Avg. Rate of Expected Exceedances column for Buckeye. 58 59 In the first line of the fourth paragraph, revise “For the Higley” to “The Higley”. 61 60 In the fourth line of the fourth paragraph, revise “advanced” to “advance”. 62 62 In the fourth line of the second paragraph, revise “(PAMS), the” to “(PAMS), and the”. 64 76 In the third sentence of the first paragraph, suggest revising “monitors” to “monitored” since the Greenwood monitor is now closed. 78 76 In the fourth sentence of the first paragraph, suggest revising “operating” to “operated” since the Greenwood monitor is now closed. 78 86 In the second heading of the figure with a picture of the monitoring site, suggest moving “Phoenix” to same line as “Ave.,” to be consistent with the other site descriptions. 88 87 In the first line of the first paragraph, suggest revising “Wide ranges” to “A wide range”. 89 96 In the “Probe Sample Line Material” row of the table, suggest revising “Teflon” to TeflonTM” for consistency. 98 152 In the “AMNP” definition, suggest revising “EPA” to “U.S. EPA”. 165 152 In third line of the “Attainment” definition, suggest revising “EPA” to “U.S. EPA”. 165 2016 Air Monitoring Network Plan (June 29, 2017) MCAQD Comment Changed as Suggested Page 162 of 171 MCAQD’s Changes To Plan Document As Per MAG Comments Comments on MCAQD 2016 Air Monitoring Network Plan Maricopa Association of Governments Initial Page # Comment Final Page # 153 In the “Continuous monitor” definition, suggest revising “Continuous monitor” to “Continuous Monitor” for consistency with other definition titles. 166 154 In the “MO” definition, revise “monitoring organization” to “Monitoring organization”. 167 155 In the first line of the “NCORE” definition, revise “site” to “is”. 168 155 In the first line of the “OAQPS” definition, suggest revising “Standards located” to “Standards, located”. 168 156 In the second line of the “PM10-2.5 definition, revise “as a lone a criteria” to “as a lone criteria”. 169 156 In the “Primary Standard” definition, suggest removing blank line between “Primary” and “Standard”. 169 157 In the “Secondary Standard” definition, suggest removing blank line between “Secondary” and “Standard”. Figure 20. MCAQD Responses to MAG Review Comments 2016 Air Monitoring Network Plan (June 29, 2017) MCAQD Comment Changed as Suggested 169 Page 163 of 171 Formatting Fixed APPENDIX IV – GLOSSARY 2016 Air Monitoring Network Plan (June 30, 2017) Page 164 of 171 Key to Acronyms and Terms 98th percentile The 98th percentile is defined in 40 CFR Part 50 Appendix N as “the smallest daily value out of a year of PM2.5 mass monitoring data below which no more than 98 percent of all daily values fall using the ranking and selection method specified in section 4.5(a) of this appendix”. ADEQ: Arizona Department of Environmental Quality ADT: Average Daily Traffic count aka: Also known as AMD: Air Monitoring Division AMNP: Air Monitoring Network Plan - an annual report produced for U.S. EPA each calendar year that provides comprehensive information regarding the performance of the County’s air quality surveillance system, e.g., network of SLAMS and SPM monitoring stations and / or sites, and the data collected and reported to EPA. The plan includes proposed future changes to the system as well. Analyzer: A monitor that samples the air and produces near real-time data without collecting a sample that must be laboratory analyzed. ANSI: American National Standards Institute AQI: Air Quality Index - the index that applies to each criteria pollutant and shows the concentration of each pollutant relative to its respective standard. When the AQI reaches 101, the pollutant’s concentration has exceeded the NAAQS. AQS: Air Quality System, sometimes defined as the Air Quality Subsystem. The AQS is the U.S. EPA’s ambient air database. ASQ: American Society for Quality Attainment: Attainment refers to a geographical area as being “in compliance” with a NAAQS and the U.S. Clean Air Act. After several years of no violations of a NAAQS, the U.S. EPA can classify a geographic area as in attainment for a particular CP. AWT: Average Weekday Traffic count BAM: Beta Attenuation Monitor. A continuous particulate measuring instrument used previously by MCAQD to measure PM10. CAA: Clean Air Act CASAC: Clean Air Scientific Advisory Committee CBSA: Core-Based Statistical Area – is defined by the U.S. Office of Management and Budget as a statistical geographic entity consisting of the county or counties associated with at least one urbanized area/urban cluster of at least 10,000 in population, plus adjacent counties having a high degree of social and economic integration. 2016 Air Monitoring Network Plan (June 29, 2017) Page 165 of 171 CFR: The Code of Federal Regulations is published annually and contains the codification of the general and permanent rules published in the Federal Register by the executive departments and agencies of the Federal Government. An eCFR is a free electronic version; however, it is not the legal version. Class I Area: Federally designated parks or wilderness areas with mandated visibility protection. CP: Criteria Pollutant, or the Central Phoenix site, depending upon context CO: Carbon monoxide, a criteria pollutant Collocated: The practice of establishing a second pollutant monitor within a specified distance and of a specified type at a monitoring site for quality assurance purposes. Continuous Monitor: A method of monitoring air pollutants that is continually measuring the quantity of the pollutant, either gaseous or particulate. Continuous monitors are analyzers that can obtain real-time or short-term averages of pollutants. Continuous monitors may also be referred to as “automated” monitors. Criteria Pollutants: Six pollutants (CO, O3, NO2, Pb, PM, and SO2) that have NAAQS established by the U.S. EPA. CSA: Combined Statistical Area - is defined by the U.S. Office of Management and Budget as when very large cities combine two or more CBSAs, these larger areas are referred to as combined statistical areas CSN: The chemical speciation network - a nationwide, research air monitoring network designed to ferret-out the chemical constitutes of and to discern trends in PM2.5 pollution. This program is managed by the U.S. EPA Office of Air Quality Planning and Standards (OAQPS). Delta T: Difference between two levels of temperature measurements - Delta T is measured in the MCAQD network at heights of 2 and 10 meters. A higher temperature at the upper level indicates a temperature inversion. Design Value: A design value is a statistic that describes the air quality status of a given area relative to the level of the NAAQS. For a concentration-based standard, the air quality design value is simply the standard-related test statistic. The design value of a pollutant monitoring network is the highest sample value in the network used to compare to the NAAQS; i.e., the 24hour PM2.5 design value for the network is the monitor with the highest 3year average of the 98th percentile. EBAM: E-Beta Attenuation Monitor - is a rugged, portable, battery or solaroperated analyzer that is suitable for obtaining and reporting continuous measurements of particulate matter in remote locations. EBAMs are often equipped with wind speed and direction instrumentation as well. EBAMs are particularly useful for temporary measurements of PM related to an event. EPA R9: Environmental Protection Agency Region 9 2016 Air Monitoring Network Plan (June 29, 2017) Page 166 of 171 EE: Exceptional Event – a high CP pollution event that is considered to be uncontrollable and caused by natural sources of pollution or an event that is not expected to recur at a given location. An EE can apply to any CP, but historically in Maricopa County, almost all EEs are related to high PM10 events. Event: Generally refers to a high pollution day where a NAAQS was exceeded. Exceedance: Generally refers to a high pollution day where a NAAQS was exceeded. FDMS-TEOM: Filter Dynamics Measurement System-Tapered Element Oscillating Microbalance - a continuous particulate analyzer used by MCAQD to measure PM2.5. FEM: Federal Equivalent Method - an EPA-approved method of sampling and analyzing the ambient air for an air pollutant, i.e., includes the monitor and its operating firmware and procedure(s). An FEM must pass required testing found in 40 CFR Part 53 and show CP data produced are similar to the Federal Reference Method (FRM). Continuous particulate matter and some gaseous analyzers are FEMs. Filter-based sampler: A method of monitoring particulate pollution that involves exposing a preweighed filter to a specific flow rate for a prescribed period of time, usually midnight to midnight, or 1440 minutes. The filters are then post-weighed to determine the mass of particulates per volume, e.g., µg/m3. Filter samples are stored for a period and can be referenced later if needed. FRM: Federal Reference Method - an EPA-approved method of sampling and/or analyzing the ambient air for an air pollutant, i.e., includes the monitor and its operating firmware and procedure(s). An FRM must pass required testing found in 40 CFR Part 53 and show CP data produced are accurate based on acceptable precision and bias limits. These methods are the baseline that all other methods reference, e.g., Federal Equivalency Methods (FEM). HAPs: Hazardous Air Pollutants - airborne chemicals that are been listed in the federal Clean Air Act and have an associated standard or process requirement determined for it. MAG: Maricopa Association of Governments MCAQCED: Maricopa County Air Quality Compliance and Enforcement Division MCAQD: Maricopa County Air Quality Department MO: Monitoring organization Monitor: Monitor is a term that refers to an instrument, sampler, analyzer, or other device that measures or assists in the measurement of atmospheric air pollutants and which is acceptable for use in ambient air surveillance under the applicable provisions of 40 CFR Part 58 Appendix C. µg/m3: micrograms per cubic meter µm: micrometers 2016 Air Monitoring Network Plan (June 29, 2017) Page 167 of 171 MSA: Metropolitan Statistical Area is designated by the U.S. Office of Management and Budget as a geographical area based on the concept of a core area with a large population nucleus, plus adjacent communities having a high degree of economic and social integration within that core. Metropolitan and micropolitan statistical areas are the two categories of CBSAs. Metropolitan areas have populations greater than 50,000, and micropolitan areas have populations between 10,000 and 50,000. The AMD operates air monitoring stations within the Phoenix-Mesa MSA, which includes portions of Maricopa and Pinal County. NAAQS: National Ambient Air Quality Standards - health and welfare-based standards established by the U.S. EPA that set permissible airborne concentration levels for the CPs. NATTS: National Air Toxics Trend Stations - a nationwide, research air monitoring program designed to measure toxic air pollutant trends. This program is managed by the U.S. EPA Office of Air Quality Planning and Standards (OAQPS). NCORE: National Core multi-pollutant is a national network of multi-pollutant monitoring sites used to represent the nation as a whole. There are currently ~75 NCORE sites, 1 to 3 per state plus Washington D.C., Virgin Islands, and Puerto Rico located in both urban and rural areas. This program is managed by the U.S. EPA Office of Air Quality Planning and Standards (OAQPS). Network: All stations of a given type or types NO2: Nitrogen dioxide. The indicator compound used to gauge the ambient concentration of NOx. NOX: Nitrogen oxide(s), a criteria pollutant. NOx is the sum of nitric oxide (NO), NO2, and other nitrogen-containing compounds. Nonattainment: Means a geographical area is “not in compliance” with the NAAQS and the U.S. Clean Air Act. After several years of violating a NAAQS, the EPA can classify a geographic area as being in nonattainment for a particular criteria pollutant. O3: Ozone, a criteria pollutant OAQPS: The U.S. EPA Office of Air Quality Planning and Standards, located in Research Triangle Park, N.C., which serves as EPA “Headquarters” for ambient air monitoring guidance and the NAAQS reviews. PAMS: Photochemical Ambient Monitoring Stations - a nationwide, research air monitoring program designed to measure specific airborne chemicals that are known to be “precursor pollutants” that form ozone when combined with ultraviolet light and heat. This program is managed by the U.S. EPA Office of Air Quality Planning and Standards (OAQPS). PCAQCD: Pinal County Air Quality Control District Pb: Lead, a criteria pollutant 2016 Air Monitoring Network Plan (June 29, 2017) Page 168 of 171 PM: Particulate matter, also known as “particulates”, project manager, or preventative maintenance depending on context PM2.5: Particulate matter 2.5 micrometers in aerometric diameter or smaller, a criteria pollutant. PM2.5 is also referred to as “fine” particulate matter. PM10: Particulate matter 10 micrometers in aerometric diameter or smaller, a criteria pollutant PM10-2.5 and / or PMc: “Coarse” particulate matter is less than 10 micrometers, but recently, has come to mean PM10 minus PM2.5, not currently regulated as a lone criteria pollutant. ppb: parts per billion ppm: parts per million PQAO: Primary quality assurance organization - a monitoring organization (MO) or other organization that is responsible for a set of air monitoring stations that monitor the same pollutant and for which data quality assessments can be pooled. Each criteria pollutant sampler/monitor at a monitoring station in the SLAMS and SPM networks must be associated with one, and only one, primary quality assurance organization. Primary Standard: The portion of the NAAQS designed to protect public health. QA: Quality assurance – generally refers to the administrative or managerial processes in place to verify that quality control activities are successfully carried out by personnel and that data produced meet specified quality requirements prior to use, i.e., written guidance documents, program oversight activities, etc. QC: Quality control – generally refers to the technical activities in place to produce high quality data, i.e., air monitoring instruments operate within specified criteria, data collection from sites, etc. Quality System: The overall system of technical activities that measure the attributes and performance of a process, item, or service against defined standards to verify that they meet the stated requirements established by the customer. (see ANSI/ASQ E4-2004) RRNS: Rapid Response Notification System - a communication tool used by MCAQD to manage high pollution events by alerting residents, intergovernmental personnel, and stakeholders of increasing PM concentrations. Sampler: A type of air monitor that collects a physical sample for analysis. Air samples may be collected onto a filter, cartridge, or other medium, or into a device such as a canister. Secondary Standard: The portion of the NAAQS designed to protect public welfare and the environment. SIP: State Implementation Plan - a SIP is a plan produced by state and/or local regulatory agencies that specifies obligations that will be taken for a 2016 Air Monitoring Network Plan (June 29, 2017) Page 169 of 171 geographic area in nonattainment to meet the NAAQS for a criteria pollutant. SIPs are also developed for maintaining compliance with the NAAQS. Site: A site is a geographic location. One or more air monitoring stations can be located at a site. SLAMS: State and Local Air Monitoring Station - the SLAMS network consist of approximately 5,000 monitoring stations nationwide whose size and distribution is largely determined by the needs of State and local air pollution control agencies to meet their respective SIP requirements. Other types of monitoring stations include: NCORE (national core) and SPM (special purpose). Currently, the AMD operates SLAMS only. SO2: Sulfur dioxide, a criteria pollutant SPM: Special Purpose Monitor - a special purpose monitor provides data for special studies needed by the State and local agencies to support SIPs and other air program activities. The SPMs are not permanently established as part of a particular pollutant’s monitoring station(s); their location can be adjusted easily to accommodate changing needs and priorities. SSI: Size Selective Inlet - the inlet used on high- and low volume particulate samplers and analyzers to determine the size of particles sampled or measured by the monitor. The particle size separation process usually employs impaction, filtration, or cyclonic flow. Station: A station may comprise a single CP monitor, or a group of monitors with a shared objective, located at a particular site. TEOM: Tapered Element Oscillating Microbalance - a automated, continuous FEM PM analyzer used by MCAQD to measure PM10 and/or PM2.5 concentrations, depending upon the instrument model and air sample inlet configuration(s). tpy: tons per year UATMP: Urban Air Toxics Monitoring Program - a nationwide research air monitoring program designed to measure toxic air pollutants within urban areas. This program is managed by the U.S. EPA Office of Air Quality Planning and Standards (OAQPS). U.S. EPA: United States Environmental Protection Agency VOC: Volatile Organic Compound - VOCs are chemical compounds that can easily vaporize and enter the atmosphere. There are many natural and artificial sources of VOCs; solvents and gasoline make up some of the largest artificial sources. VOCs will react with NOx in the presence of sunlight to create ground-level O3 pollution. 2016 Air Monitoring Network Plan (June 29, 2017) Page 170 of 171 Volume: a. The amount of air sampled for analysis. Volume is calculated by multiplying a monitor’s flowrate by the collection time, usually in minutes. Volume = flowrate X minutes b. The amount of data in a file or database. 2016 Air Monitoring Network Plan (June 29, 2017) Page 171 of 171