Maricopa County Air Quality Department 2007 Air Monitoring Network Review Air Monitoring Division 1001 N. Central Ave. Suite 550 Phoenix, AZ 85004 Acknowledgements The Maricopa County Air Monitoring Division maintains twenty-four ambient air monitoring sites throughout Maricopa County. Some of the exciting new events happening this year include the opening of our new Coyote Lakes site to do special purpose monitoring of PM-10 sources in the area and the securing of a new building for the Air Monitoring division. We’ve also hired new technicians this year and are at full staff for the first time in many years. New technicians hired include Alex Herrera, Dan Speigelberg, Tom Dubishar, and Michael Gardner. I would especially like to thank all of the air monitoring staff for the excellent job they did in maintaining Maricopa County’s air monitoring network. They are Larry Seals, Del Hawkins, Gary Ensminger, Robert Dyer, Ronald Pope, Tom Shorb, Dale Foster, Chris Hernandez, Hugh Tom, Charles Miller, Carl Harper, Alex Herrera, Dan Speigelberg, Tom Dubishar, and Michael Gardner. In addition, the assistance of other agencies that provided data and helpful comments to this review is gratefully acknowledged. These include Arizona Department of Environmental Quality (ADEQ), Pinal County Air Quality Control District (PCAQCD), and Maricopa Association of Governments (MAG). Ben Davis Air Monitoring Division Manager Maricopa County Air Quality Department 2007 Air Monitoring Network Review 1 Maricopa County Air Quality Table of Contents ACKNOWLEDGEMENTS................................................................................................................................................... 1 ABSTRACT ............................................................................................................................................................................ 4 DEFINITION OF TERMS .................................................................................................................................................... 5 CRITERIA POLLUTANT INFORMATION...................................................................................................................... 7 ABSTRACT OF POLLUTANTS .................................................................................................................................................. 7 CAUSES AND CHARACTERISTICS OF POLLUTANTS................................................................................................................. 7 Carbon Monoxide:............................................................................................................................................................ 7 Lead:................................................................................................................................................................................. 7 Nitrogen Dioxide:............................................................................................................................................................. 8 Ozone: .............................................................................................................................................................................. 8 Particulate Matter: ............................................................................................................................................................ 8 Sulfur Dioxide: ................................................................................................................................................................. 8 NATIONAL AMBIENT AIR QUALITY STANDARDS .................................................................................................................. 9 ABSTRACT OF MCAQD POLLUTION MONITORING STRATEGIES ......................................................................................... 10 NETWORK DESIGN .......................................................................................................................................................... 11 PURPOSE AND OBJECTIVE OF THE NETWORK ...................................................................................................................... 11 OVERVIEW OF THE MCAQD NETWORK.............................................................................................................................. 12 2007 SUMMARY OF NETWORK RESULTS AND REQUIRED INFORMATION ................................................... 16 DATA COMPLETENESS ........................................................................................................................................................ 16 CRITERIA POLLUTANT SUMMARY ....................................................................................................................................... 17 Carbon Monoxide (CO).................................................................................................................................................. 17 Ozone (O3)...................................................................................................................................................................... 19 Particulate Matter <=10 Microns (PM10)........................................................................................................................ 22 Particulate Matter <=2.5 Microns (PM2.5) ...................................................................................................................... 24 Nitrogen Dioxide (NO2) ................................................................................................................................................. 26 Sulfur Dioxide (SO2) ...................................................................................................................................................... 27 2007 NAAQS EXCEEDANCE AND VIOLATION SUMMARY ................................................................................................... 28 2007 VIOLATIONS OF THE 24-HOUR PM10 STANDARD ........................................................................................................ 29 EXCEPTIONAL EVENTS ........................................................................................................................................................ 29 POLLUTION TRENDS ............................................................................................................................................................ 31 Carbon Monoxide........................................................................................................................................................... 31 Nitrogen Dioxide............................................................................................................................................................ 31 Ozone ............................................................................................................................................................................. 32 Particulates ..................................................................................................................................................................... 32 Sulfur Dioxide ................................................................................................................................................................ 34 SPECIAL PROJECTS AND NETWORK CHANGES .................................................................................................... 35 SEASONAL MONITORS......................................................................................................................................................... 35 THE CONSIDERATION OF ADDITIONAL SITES/MONITORS .................................................................................................... 35 NEW SITES .......................................................................................................................................................................... 35 CLOSED SITES/MONITORS ................................................................................................................................................... 36 OTHER NETWORK CHANGES/SPECIAL PROJECTS/COMMENTS............................................................................................. 36 MOBILE MONITORING PROGRAM ........................................................................................................................................ 36 ADDITIONAL COMMENTS ............................................................................................................................................. 37 ARIZONA DEPARTMENT OF ENVIRONMENTAL QUALITY NETWORK .................................................................................... 37 EPA OZONE MAPPING ........................................................................................................................................................ 37 MARICOPA COUNTY’S INTERACTIVE POLLUTION MAP ....................................................................................................... 38 REFERENCES ..................................................................................................................................................................... 40 APPENDIX I - MONITORING SITE DETAILS (PHOTOS AND SPECIFIC INFORMATION).............................. 41 2007 Air Monitoring Network Review 2 Maricopa County Air Quality APPENDIX II - EPA REQUIRED DATA ......................................................................................................................... 66 REQUIRED GENERAL INFORMATION ON MONITORING NETWORK ....................................................................................... 67 REQUIRED GENERAL STATEMENT REGARDING CHANGES TO THE PM2.5 NETWORK............................................................ 67 NOTES REGARDING APPENDIX DATA ................................................................................................................................... 67 APPENDIX III - PUBLIC NOTICE AND COMMENT INFORMATION.................................................................... 92 PUBLIC NOTICE PERIOD ...................................................................................................................................................... 93 PUBLIC COMMENTS ............................................................................................................................................................. 93 NEWS RELEASE ................................................................................................................................................................... 93 List of Tables Table 1 National Ambient Air Quality Standards .................................................................................................................... 9 Table 2 Site Monitoring Objectives ...................................................................................................................................... 11 Table 3 Spatial Measurement Scales ...................................................................................................................................... 11 Table 4 Maricopa County Ambient Air Monitoring Sites for 2007 ...................................................................................... 13 Table 5 Criteria Pollutants Monitored, by Site and Network ................................................................................................. 13 Table 6 Site Location ............................................................................................................................................................. 14 Table 7 Site Instrument Setup ................................................................................................................................................ 15 Table 8 2007 Criteria Pollutant Data Completeness............................................................................................................... 16 Table 9 2007 1-hour and 8-hour Average Carbon Monoxide Summary ................................................................................ 18 Table 10 2007 8-hour Average Ozone Summary ................................................................................................................... 20 Table 11 3 Year Average of 8-Hour Ozone .......................................................................................................................... 21 Table 12 2007 PM10 Summary ............................................................................................................................................... 23 Table 13 2007 PM2.5 Summary (FRM Monitors)................................................................................................................... 25 Table 14 2007 PM2.5 Data Summary (Continuous Monitors) ................................................................................................ 25 Table 15 2007 PM2.5 3-Year Averages of 98th Percentile (FRM Monitors) ........................................................................... 25 Table 16 2007 PM2.5 3-Year Averages of Annual Means (FRM Monitors)........................................................................... 25 Table 17 2007 Nitrogen Dioxide Summary ........................................................................................................................... 26 Table 18 2007 Sulfur Dioxide Summary................................................................................................................................ 27 Table 19 2007 NAAQS Exceedances and Violations Summary............................................................................................ 28 Table 20 2007 PM10 24-hour Average Exceedance Details ................................................................................................... 28 Table 21 Violations of the 24-hr PM10 Standard .................................................................................................................... 29 Table 22 2007 PM-10 Violations Following Expected Approval of Exceptional Events ...................................................... 30 Table 23 Seasonal Monitors .................................................................................................................................................. 35 Table 24 Air Quality Index .................................................................................................................................................... 38 List of Figures Figure 1 Maricopa County Air Monitoring Sites for 2007..................................................................................................... 12 Figure 2 2007 Carbon Monoxide Monitoring Sites................................................................................................................ 17 Figure 3 2007 Ozone Monitoring Sites .................................................................................................................................. 19 Figure 4 2007 PM10 Monitoring Sites (includes continuous and non-continuous sites)......................................................... 22 Figure 5 2007 PM2.5 Monitoring Sites (continuous and non-continuous) .............................................................................. 24 Figure 6 2007 Nitrogen Dioxide Monitoring Sites................................................................................................................. 26 Figure 7 2007 Sulfur Dioxide Monitoring Sites ..................................................................................................................... 27 Figure 8 EPA AIRNow Website ............................................................................................................................................ 37 Figure 9 Interactive Website Data Trends Page ..................................................................................................................... 39 List of Charts Chart 1 2005-2007 8-hr Avg. Carbon Monoxide Maximum Values...................................................................................... 31 Chart 2 2005-2007 Nitrogen Dioxide Annual Average Readings .......................................................................................... 31 Chart 3 2005-2007 Ozone 4th high 8-hr Average .................................................................................................................. 32 Chart 4 2005-2007 PM10 24-hr Average Maximum Values................................................................................................... 32 Chart 5 2005-2007 PM10 Annual Average ............................................................................................................................. 33 Chart 6 2005-2007 PM2.5 Annual Average............................................................................................................................. 33 Chart 7 2005-2007 PM2.5 98th Percentile ................................................................................................................................ 34 Chart 8 2005-2007 Sulfur Dioxide Annual Average.............................................................................................................. 34 2007 Air Monitoring Network Review 3 Maricopa County Air Quality ABSTRACT This 2007 Annual Air Monitoring Network Review is being submitted by the Maricopa County Air Quality Department1 (MCAQD) to the United States Environmental Protection Agency (US EPA) Region 9. The network review evaluates the adequacy of the ambient air monitoring network with respect to the monitoring objectives and spatial scales. This annual assessment is required by 40 CFR Part 58, Subpart B. Network changes, special projects, and 3-year data summaries are included in the review. This Network Review is also preliminary to our annual data certification with the US EPA and helps us assess the quality of our data before submitting for data certification. This network review has the secondary purpose of informing the public of the criteria air pollutants that can affect their health, how the MCAQD monitors these criteria pollutants, and what the actual readings are so that our citizens can make informed decisions regarding their lifestyles. 1 The functions of the former Air Quality Division of the Maricopa County Environmental Services Department (MCESD) were transferred to the newly-created Air Quality Department in November 2004. 2007 Air Monitoring Network Review 4 Maricopa County Air Quality DEFINITION OF TERMS ADEQ: Arizona Department of Environmental Quality. AQS: Environmental Protection Agency’s Air Quality System Attainment: This refers to the NAAQS used to comply with the federal Clean Air Act. After several years of no violations of the NAAQS, the EPA can classify the area as in attainment for that pollutant. CFR: Code of Federal Regulations. Class I: Federally designated park or wilderness area with mandated visibility protection. CO: Carbon monoxide. Criteria Pollutants: Six pollutants (CO, Lead, NO2, O3, Particulates, and SO2) that have NAAQS established by the US EPA. 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; e.g. the 24-hour PM2.5 design value for the network is the monitor with the highest 3-year average of the 98th percentile. EPA: U. S. Environmental Protection Agency. Exceptional Events: An uncontrollable event caused by natural sources of pollution or an event that is not expected to recur at a given location. FDMSTEOM: Filter Dynamics Measurement System-Tapered Element Oscillating Microbalance. A continuous particulate measuring instrument used by MCAQD to measure PM2.5. HAPs: Hazardous air pollutants. An air-born chemical that has been listed in the federal Clean Air Act and has an associated standard or process requirement determined for it. MCAQD: Maricopa County Air Quality Department. ȝg/m3: Microgram per cubic meter. MSA: Metropolitan Statistical Area. A geographical area designated by the federal government 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 with that core. The MCAQD operates within the Phoenix-Mesa MSA which includes portions of Maricopa and Pinal County. NAAQS: National Ambient Air Quality Standards. A health and welfare-based standard that is set by the US EPA to qualify allowable levels of criteria pollutants. NCORE National Core Multi-Pollutant Site. A national network of multi-pollutant monitoring sites used to represent the nation as a whole. There are currently ~75 NCORE sites (1-3 per state plus Washington DC, Virgin Islands, and Puerto Rico) located in both urban and rural areas. NO2: Nitrogen dioxide. NOX: Sum of nitrogen oxide and NO2. O3: Ozone. Pb: Lead. PM: Particulate matter. Material suspended in the air in the form of minute solid particles or liquid droplets. Particulate matter of 2.5 Microns in diameter or smaller PM2.5: PM10: Particulate matter of 10 Microns in diameter or smaller. PPM: Parts per million. Primary Standard: One portion of the NAAQS. These standards are designed to protect the public health. 2007 Air Monitoring Network Review 5 Maricopa County Air Quality Secondary Standard: SIP: SLAMS: SO2: SPM: SSI: TEOM: VOC: The less stringent portion of the NAAQS designed to protect property and the environment. State Implementation Plan. SIPs are a collection of state and local regulations and plans to achieve healthy air quality under the Clean Air Act. State and Local Air Monitoring Station. The SLAMS consist of a network 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 State implementation plan (SIP) requirements. Other types of monitoring stations include NCORE (national core) and SPM (special purpose) monitors. Maricopa County does not currently operate any NCORE sites and only operates one SPM site. Sulfur dioxide. Special purpose monitor. Special Purpose Monitoring Stations provide for special studies needed by the State and local agencies to support State implementation plans and other air program activities. The SPMs are not permanently established and can be adjusted easily to accommodate changing needs and priorities. Size Selective Inlet. SSI High Volume Samplers are filter-based instruments used by MCAQD to measure PM10. Tapered Element Oscillating Microbalance. A continuous particulate measuring instrument used by MCAQD to measure PM10. Volatile organic compounds. 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 ozone pollution. 2007 Air Monitoring Network Review 6 Maricopa County Air Quality CRITERIA POLLUTANT INFORMATION Abstract of Pollutants Certain air pollutants, called “criteria air pollutants,” are common throughout the United States. These pollutants can cause health problems, harm the environment, and cause property damage. These criteria pollutants are so named since the US EPA has regulations, called the National Ambient Air Quality Standards (NAAQS), on allowable levels of these substances using health-based criteria. One set of limits, called “primary standards”, protect health, while another set of “secondary” standards, are designed to protect property and the environment. The US EPA names the following pollutants as criteria pollutants: carbon monoxide (CO), lead (Pb), nitrogen dioxide (NO2), ozone (O3), particulates (PM10 & PM2.5), and sulfur dioxide (SO2). MCAQD operates monitors for the following criteria pollutants: carbon monoxide, ozone, particulates, nitrogen dioxide, and sulfur dioxide. Since levels of lead have been consistently below national levels, MCAQD has been allowed to stop monitoring for lead. Causes and Characteristics of Pollutants Carbon Monoxide: CO is the most widely distributed and most commonly occurring air pollutant. Total emissions of CO to the atmosphere exceed all other pollutants combined, on a weight basis. Fortunately, CO does not persist in the atmosphere, but is quickly converted to carbon dioxide (CO2). CO can reach dangerous levels in localized areas or hotspots such as heavily traveled intersections or city streets. In addition, CO has been implicated in ozone formation. Most people are familiar with CO and are aware that automobiles produce this deadly odorless and colorless gas. In Maricopa County, more than 70% of all anthropogenic CO comes from motor vehicle emissions. In fact, this gas is produced almost anytime something is burned. All substances that are living (plants, animals) or that were once living (wood, coal, oil, gasoline) are composed of carbon compounds. If these substances are burned in the presence of sufficient oxygen, the carbon is converted to CO2 gas. If, as is often the case, not enough oxygen is present, carbon monoxide gas is produced. Carbon monoxide’s danger lies in the extremely strong affinity that hemoglobin has for it. Hemoglobin, the special oxygen-transporting material in the red blood cell, has approximately 200 times stronger affinity for CO than for oxygen. Therefore, if both CO and O2 are present the bonding between the CO and hemoglobin will prevent the O2 from exchanging within a person’s body. This puts a heavy burden on people with heart disease and can aggravate angina, but even healthy people can suffer from harmful side effects from CO. In 2007 Maricopa County achieved its eleventh consecutive year of compliance with the eight-hour CO standard. Lead: Lead is a metal found naturally in the environment as well as in manufactured products. The major sources of lead emissions have historically been motor vehicles (such as cars and trucks) and industrial sources. 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 lead in air are generally found near lead smelters. Other stationary sources are waste incinerators, utilities, and lead-acid battery manufacturers. In the early 1970s, EPA set national regulations to gradually reduce the lead content in gasoline. In 1975, unleaded gasoline was introduced for motor vehicles equipped with catalytic converters. EPA banned the use of leaded gasoline in highway vehicles in December 1995. Primarily as a result of EPA's regulatory efforts to remove lead from gasoline, levels of lead in the air have decreased by 94 percent between 1980 and 1999. Since levels of lead have been consistently below national levels, Maricopa County was allowed to discontinue ambient air monitoring for lead in 1997. 2007 Air Monitoring Network Review 7 Maricopa County Air Quality Nitrogen Dioxide: NO2 belongs to a family of highly reactive gases called nitrogen oxides. These gases are formed when fuel is burned at high temperatures, and are emitted primarily from automobile exhaust and power plants. Exposure to nitrogen dioxide can irritate the lungs and lower resistance to respiratory infections, particularly in people with existing respiratory illness such as asthma. Maricopa County is currently in attainment status for NO2. Ozone: O3 is a naturally occurring compound in which three oxygen atoms combine together. This is an unstable combination, and ozone is continually going through a natural cycle of being formed and then converting back to the more stable “normal” double oxygen compound (O2). The cycle occurs fairly rapidly. In the stratosphere (6 miles and more above the earth), naturally occurring ozone has a beneficial effect of screening out harmful ultraviolet light from the sun. However, ground-level ozone is a pollutant and is a component of the regional smog that affects the valley. Ozone is not directly emitted into the air, but rather forms in a complex reaction that involves heat, sunlight, and a “soup” of toxic pollutants, especially volatile organic compounds (VOCs). Some of the most common sources of VOCs are gasoline vapors, chemical solvents, and combustion products of fuels and consumer products. Ozone is created by sunlight acting on nitrates (NOX) and VOCs from motor vehicles and stationary sources, and can be carried hundreds of miles from their origins. Ozone affects the respiratory system in people and animals, and also affects the growth of plants. Maricopa County is currently not in attainment for Ozone pollution, although the number of violations of the standard has been decreasing in recent years. Particulate Matter: Particulate matter is the term for solid or liquid particles found in the air. Particle pollution is made up of a number of components, including acids (such as nitrates and sulfates), organic chemicals, metals, and soil or dust particles. While some particles are large or dark enough to be seen as soot or smoke, others can only be seen through an electron microscope. In 1987 the EPA replaced the Total Suspended Particulates (TSP) air quality standard with a standard for PM10 (particles measuring ten microns or less). Health research studies have found that PM10 has the ability to reach the lower regions of the respiratory tract, and thus can affect the respiratory system in both humans and animals. Particulates that have high acid levels can cause damage to man-made materials and reduce visibility. The size of particles is directly linked to their potential for causing health problems. EPA is concerned about particles that are 10 micrometers in diameter or smaller because those are the particles that generally pass through the throat and nose and enter the lungs. Once inhaled, these particles can affect the heart and lungs and cause serious health effects. EPA groups particle pollution into two categories: x "Coarse particles," such as those found near roadways and dusty industries, range in size from 2.5 to 10 microns in diameter. x "Fine particles," such as those found in smoke and haze, have diameters smaller than 2.5 microns. These particles can be directly emitted from sources such as forest fires, or they can form when gases emitted from power plants, industries and automobiles react in the air. Maricopa County is currently not in attainment for PM10 (although we are in attainment for PM2.5), nor have we met the requirements set forth in our State Implementation Plan (SIP). As a result of this, the EPA is implementing a 5% reduction of emissions plan, including the possibility of sanctions. This plan, which is required by the Clean Air Act, will continue until Maricopa County can bring the particulate matter pollution down into compliance. Sulfur Dioxide: SO2 is emitted (in gaseous form) largely from burning high-sulfur coal, oil, and diesel fuel. Because this gas is usually found in association with particulate pollution, as SO2 is the precursor for fine sulfate particles, separating the health effects of these two pollutants is difficult. Together SO2 and PM2.5 make up a major 2007 Air Monitoring Network Review 8 Maricopa County Air Quality portion of the pollutant load in many cities, acting separately and in concert to threaten public health. SO2 contributes to respiratory illness, particularly in children and the elderly, and aggravates existing heart and lung diseases. SO2 contributes to the formation of acid rain, and it contributes to the formation of atmospheric particles that cause visibility impairment, most noticeably in national parks. SO2 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 with SO2 are not confined to areas where it is emitted. Maricopa County is in attainment for Sulfur Dioxide. National Ambient Air Quality Standards The EPA Office of Air Quality Planning and Standards (OAQPS) manages programs to improve air quality in areas where the current quality is unacceptable and to prevent deterioration in areas where the air is relatively free of contamination. To accomplish this task, OAQPS establishes the National Ambient Air Quality Standard (NAAQS) for each of the criteria pollutants (see Table 1). There are two types of standards. Primary standards protect against adverse health effects; secondary standards protect against welfare effects, such as damage to farm crops and vegetation and/or damage to buildings. Because different pollutants have different effects, the NAAQS are also different. Some pollutants have standards for both long-term and short-term averaging times. The short-term standards are designed to protect against acute, or short-term, health effects, while the long-term standards are established to protect against chronic health effects. Table 1 lists the NAAQS for the six criteria pollutants. Table 1 National Ambient Air Quality Standards Pollutant Carbon Monoxide Lead Nitrogen Dioxide PM10 PM2.5 Ozone Sulfur Oxides a Primary Standards 9 ppm 35 ppm 1.5 µg/m3 0.053 ppm 150 µg /m3 15 µg/m3 35 µg/m3 0.08 ppm 0.03 ppm 0.14 ppm ------- Averaging Times 8-houra 1-houra Quarterly Average Annual (Arithmetic Mean) 24-houra b Annual (Arithmetic Mean) 24-hourc 8-hourd Annual (Arithmetic Mean) 24-houra 3-houra Secondary Standard None None Same as Primary Same as Primary Same as Primary Same as Primary Same as Primary Same as Primary ------------0.5 ppm Not to be exceeded more than once per year. b To attain this standard, the 3-year average of the annual arithmetic mean PM2.5 concentrations from single or multiple community-oriented monitors must not exceed 15 µg/m3. c To attain this standard, the 3-year average of the 98th percentile of 24-hour concentrations at each population-oriented monitor within an area must not exceed 35 µg/m3. d To attain this standard, the 3-year average of the fourth-highest daily maximum 8-hour average ozone concentrations measured at each monitor within an area over each year must not exceed 0.08 ppm. 2007 Air Monitoring Network Review 9 Maricopa County Air Quality Abstract of MCAQD Pollution Monitoring Strategies The MCAQD monitors for these criteria pollutants by maintaining twenty-four ambient air-monitoring sites throughout Maricopa County. The dates that the sites were established range from 1961 (Central Phoenix) to 2007 (Coyote Lakes). Land use patterns around these sites vary from heavy populated urban areas to sparsely populated rural settings. Site elevations range from 845 feet above sea level (Buckeye) to 5190 feet above sea level at the top of Humboldt Mountain. Not all pollutants are measured at all sites; some sites measure most of the pollutants, while others only measure one or two pollutants. The following section will detail how MCAQD designs its air monitoring network to obtain representative samples of these air pollutants. Following this will be details of the results obtained from our 2007 sampling season. 2007 Air Monitoring Network Review 10 Maricopa County Air Quality NETWORK DESIGN Purpose and Objective of the Network The purpose of the ambient air monitoring network is to assess the extent of air pollution, ensure compliance with national legislation, evaluate control options, and provide data for air quality modeling. In general, six basic monitoring objectives and five measuring scales are used to determine the network design (see Table 2 and Table 3). Additional considerations such as availability of power, accessibility to site, security, geographic location, and fiscal and personnel resources are also addressed in determining the feasibility of the network design. Table 2 Site Monitoring Objectives 1. 2. 3. 4. 5. Determine highest concentrations expected to occur in the area covered by the network. Determine representative concentrations in areas of high population density. Determine the impact on ambient pollution levels of significant sources or source categories. Determine general background concentration levels. Determine the extent of regional pollutant transport from populated areas, with regards to the secondary standards (such as visibility impairment and effects on vegetation). 6. Determine the welfare-related impacts in more rural and remote areas. To establish or evaluate a site, one must link its monitoring objectives to the physical location of the site. This can be done by matching the spatial scale, which represents the sample of air around the monitor where pollutant concentrations are reasonably uniform, with the most appropriate monitoring objective. Thus, spatial scale represents the physical dimensions of the air parcel around the monitor, and monitoring objective represents the overall purpose of the monitor. Combining the proper spatial scale with the monitoring objective explains why air monitoring sites are located in particular areas. Table 3 Spatial Measurement Scales Scale Defined parameter (radius) Micro Scale Middle Scale Neighborhood Scale Urban Scale Regional Scale 0 to 100 meters 100 to 500 meters 0.5 to 4 kilometers 4 to 50 kilometers 10 to 100s of kilometers Since it is physically and fiscally impossible to monitor air quality in every location, representative samples must be obtained. The optimal locations for obtaining these samples are determined by using the monitoring objectives and the spatial measurement scales described above. For example, there might be numerous locations where the highest concentration of carbon monoxide may occur. Using these principles, only one or two sites will be established to represent all of the high-concentration areas. The same reasoning can be used for different types of pollutants. This does not mean that the number of monitoring sites is fixed. To the contrary, the network must be dynamic enough to maintain a current representative sample of the air quality. 2007 Air Monitoring Network Review 11 Maricopa County Air Quality Overview of the MCAQD Network The Phoenix Metropolitan Area has a population of over 3 million people (2000 US Census). The EPA has mandated a minimum number of monitors required to properly represent this population. MCAQD has designed its network, using the concepts of scale and objective mentioned previously, to meet and in most cases exceed these EPA requirements (see “Required General Information on Monitoring Network” in Appendix II). Altogether, MCAQD operated a network of 24 monitoring sites in 2007. The following image details the location of these sites and gives the abbreviation symbols used by Maricopa County. Table 4 and Table 5, which follows, gives the AQS code assigned to each site and details which criteria pollutant is monitored at which site along with the monitor designation, respectively. Table 6 and Table 7 give more specific information about the location of the sites and the types and numbers of monitors at each site, respectively. Figure 1 Maricopa County Air Monitoring Sites for 2007 2007 Air Monitoring Network Review 12 Maricopa County Air Quality Table 4 Maricopa County Ambient Air Monitoring Sites for 2007 Site Name Blue Point Buckeye Cave Creek Central Phoenix Coyote Lakes Durango Complex Dysart Falcon Field Fountain Hills Glendale Greenwood Higley Site Abbr. BP BE CC CP CL DC DY FF FH GL GR HI AQS Code 04-013-9702 04-013-4011 04-013-4008 04-013-3002 04-013-4014 04-013-9812 04-013-4010 04-013-1010 04-013-9704 04-013-2001 04-013-3010 04-013-4006 Site Name Humboldt Mountain Mesa North Phoenix Pinnacle Peak Rio Verde South Phoenix South Scottsdale Tempe West Chandler West 43rd Ave. W. Indian School Rd. West Phoenix Site Abbr. HM ME NP PP RV SP SS TE WC WF WI WP AQS Code 04-013-9508 04-013-1003 04-013-1004 04-013-2005 04-013-9706 04-013-4003 04-013-3003 04-013-4005 04-013-4004 04-013-4009 04-013-0016 04-013-0019 Table 5 Criteria Pollutants Monitored, by Site and Network Site Blue Point Buckeye Cave Creek Central Phoenix Coyote Lakes Durango Complex Dysart Falcon Field Fountain Hills Glendale Greenwood Higley Humboldt Mountain Mesa North Phoenix Pinnacle Peak Rio Verde South Phoenix South Scottsdale Tempe West Chandler West 43rd Ave. W. Indian School Rd. West Phoenix O3 SLAMS SLAMS SLAMS SLAMS CO PM2.5 PM10 NO2 SLAMS SLAMS SLAMS SLAMS SLAMS SP SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SO2 SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS 2007 Air Monitoring Network Review 13 SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS Maricopa County Air Quality Table 6 Site Location Site Latitude Longitude Site Location BP BE CC CP CL DC DY FF FH GL GR HI HM ME NP PP RV SP SS TE WC WF WI WP 33.54549 -111.60925 33.37005 -112.62070 33.82169 -112.01739 33.45793 -112.04601 33.66628 -112.31042 33.42650 -112.11814 33.63713 -112.34184 33.45223 -111.73331 33.61103 -111.72529 33.56936 -112.19153 33.46093 -112.11748 33.31074 -111.72255 33.98280 -111.79870 33.41045 -111.86507 33.56033 -112.06626 33.71231 -111.85272 33.71881 -111.67183 33.40316 -112.07533 33.47968 -111.91721 33.4124 -111.93473 33.29898 -111.88431 33.40642 -112.14434 33.49462 -112.13098 33.48385 -112.14257 Usery Pass & Bush Highway MC85 & HWY 85 32nd St. & Carefree Highway 19th St & Roosevelt Beardsley Road and 115th Ave. 27th Ave. & Durango St. Bell Rd. & Dysart Rd. McKellips & Greenfield Palisades & Fountain Hills Blvd. 59th Ave & W. Olive 27th Ave. & Interstate 10 Higley Rd. & Chandler Blvd Top of Humboldt Mountain Broadway Rd. & Alma School Rd. 7th Street & Dunlap Avenue Pima Rd & Pinnacle Peak Forest Rd & Del Ray Ave. Central Ave. & Broadway Scottsdale Rd. & Thomas Rd. College Ave. & Apache Blvd. Ellis St. & Frye Rd. 43rd Ave. & Broadway Rd. 33rd Ave. & Indian School Rd. 39th Ave. & Earll Dr. 2007 Air Monitoring Network Review 14 AQS Code 04-013-9702 04-013-4001 04-013-4008 04-013-3002 04-013-4014 04-013-9812 04-013-4010 04-013-1010 04-013-9704 04-013-2001 04-013-3010 04-013-4006 04-013-9508 04-013-1003 04-013-1004 04-013-2005 04-013-9706 04-013-4003 04-013-3003 04-013-4005 04-013-4004 04-013-4009 04-013-0016 04-013-0019 Maricopa County Air Quality AIR MONITORING NETWORK OPERATIONS Contin- Continuous uous PM-2.5 PM-10 Delta Relative Room Filter O3 CO NOX SO2 Press Temp Temp Humidity Temp Rain PM-2.5 PM-10 Filter 1 1 1 1 * 1 * 1 1 1 1 1 1 1 * 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 * 1 * 1 1 1 1 1 * 1 1 1 1 1 1 1 1 1 * 1 * 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 * 1 1 1 1 * 1 1 1 1 1 2 1 1 * 1 1 1 1 1 1 1 1 * 1 1 1 * 1 1 1 1** 1 1** 1 1 * 1 1 1 1 1 1 1 1 1 * 1 1 1 1 1 * 1 * 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2007 Air Monitoring Network Review 15 Maricopa County Air Quality #Active Sites Instruments BP 4 BE 9 CC 6 CL 4 CP 9 DC 5 DY 7 FF 5 FH 6 GL 7 GR 7 HI 5 HM 4 ME 1 9 NP 1 8 PP 1 3 RV 2 SP 1 9 SS 1 10 TE 1 7 WC 1 8 WF 1 6 WI 1 3 WP 1 12 Active Instr. 155 22 17 13 5 2 14 5 21 10 21 2 2 9 4 8 * = Instruments operate seasonally. ** = South Phoenix operated a filter-based PM-10 monitor from Jan-Jun, then a continuous PM-10 monitor from Jul-Dec. # = Coyote Lakes Wind monitors are not applicable for official standards, they are for reference only. Wind Speed & Direction 1 1 1 1# 1 1 1 1 1 1 1 1 Table 7 Site Instrument Setup 2007 SUMMARY OF NETWORK RESULTS AND REQUIRED INFORMATION Data Completeness Before any data set can be considered valid it must first pass a data recovery test that consists of determining the ratio of actual samples to scheduled samples by quarter. This ratio must be greater than 75% for a data set to pass the first validity test. After all validation tests have been passed, the data can be used to determine compliance with the NAAQS. The following is a summary of the annual data completeness for all criteria pollutants (Table 8). Note that CO, O3, NO2, and SO2 samples are all from continuous monitors and are therefore hourly-averaged samples. PM monitors are either continuous, and therefore hourly-averaged, or filter-based and daily-averaged. Filters are sampled for 24 hours every 3rd day (PM2.5) or every 6th day (PM10). Table 8 2007 Criteria Pollutant Data Completeness Number of Actual Samples Number of Scheduled Samples 79101 80832 97.9% 114044 116304 98.1% 423 436 97.0% 16454 17520 93.9% 416 420 99.0% PM10 (continuous) 71296 72336 98.6% Nitrogen Dioxide 40843 43800 93.2% Sulfur Dioxide 17056 17520 97.4% 339633 349168 Carbon Monoxide Ozone PM2.5 (1 in 3 day) PM2.5 (continuous) PM10 (1 in 6 day) Total Data Completeness (Actual/Schedule) 97.3%* *Note: the PM2.5 (1 in 3 day) and total data completeness numbers do not match the numbers in the AQS data completeness report (AMP430). This is because some of the PM2.5 samples were collected from the West Phoenix collocated monitor (POC 2) on unofficial sample days and the AMP430 report does not recognize them. AMP430 reports total data completeness as 97.0% instead of 97.3% as reported here. 2007 Air Monitoring Network Review 16 Maricopa County Air Quality Criteria Pollutant Summary Carbon Monoxide (CO) Figure 2 2007 Carbon Monoxide Monitoring Sites During 2007, thirteen CO monitors were reported as operational to the USEPA Air Quality System (AQS) (Figure 2). All CO monitors are classified as SLAMS (Table 5). There are two primary standards for CO, the 8-hour average and the 1-hour average. The 8-hour primary standard is 9 ppm and the 1-hour primary standard is 35 ppm. A violation of the standard is any two exceedances in a calendar year. For calendar year 2007, no exceedances of the CO 1-hour or 8-hour standards were recorded at any MCAQD monitoring sites (see Table 9). 2007 Air Monitoring Network Review 17 Maricopa County Air Quality Table 9 2007 1-hour and 8-hour Average Carbon Monoxide Summary CO 1-hour Average Max. (PPM); Date: Hour 3.9; 02/15:10 CO 1-hour Average 2nd High (PPM); Date: Hour 1.6; 03/14:09 C. Phoenix 4.1; 01/15:07 4.0; 01/08:08 8594 Dysart 6.8; 11/08:18 1.8; 11/15:07 Glendale 4.3; 12/16:22 Greenwood CO 8-hour Average 2nd High (PPM); Date: Hour 0.8; 03/14:10 Number of Exceedances of 1/8-Hour average 0 2.9; 01/14:01 2.9; 11/18:00 0 4996 2.2; 11/08:20 1.3; 11/15:10 0 3.7; 09/17:09 5027 1.8; 12/25:02 1.6; 11/09:02 0 5.7; 09/12:16 4.6 01/18:08 8548 4.0; 12/07:08 3.0; 01/11:09 0 Mesa 3.9; 01/22:14 2.5; 01/22:15 4964 2.0; 01/22:20 2.0; 12/25:04 0 N. Phoenix 3.4; 01/10:08 3.0; 01/29:07 4904 1.7; 01/10:11 1.6; 01/29:11 0 S. Phoenix South Scottsdale Tempe West Chandler W. Indian School W. Phoenix 4.9; 10/27:21 4.3; 01/08:08 5021 3.1; 12/25:02 2.3; 12/24:23 0 2.7; 01/02:08 2.6; 02/07:19 4917 1.6; 01/14:01 1.6; 11/18:00 0 7.4; 11/28:14 3.2; 12/26:14 4971 2.0; 11/28:19 1.9; 01/04:03 0 2.7; 01/01:01 2.4; 01/01:00 4994 1.6; 01/01:05 1.5; 02/10:01 0 6.2; 01/18:07 5.7; 01/16:07 8495 5.0; 01/01:05 3.9; 01/15:09 0 6.0; 01/17:08 6.0; 01/18:07 8653 4.6; 01/01:05 4.1; 12/25:03 0 Site Buckeye CO 8-hour Number Average Max. of (PPM); Samples Date: Hour 5017 1.0; 02/15:11 Note: this table is read as the bold number representing the data followed by the date and time, e.g. the maximum 1-hour averaged CO reading at the Buckeye site was 3.9 PPM on February 15 in the 10 o’clock hour. 2007 Air Monitoring Network Review 18 Maricopa County Air Quality Ozone (O3) Figure 3 2007 Ozone Monitoring Sites During 2007, seventeen ozone monitors were reported as operational in AQS (Figure 3). All of the ozone monitors are classified as SLAMS (Table 5). The 1-hour average ozone standard was revoked by the EPA on June 15, 2005, and has been replaced by the 8-hour average standard for compliance purposes. The eight-hour primary standard for ozone is 0.08 ppm. Compliance with the standard is determined by averaging the 4th highest eight-hour average over a three-year period. This three-year average must be less than or equal to 0.08 ppm. There were no exceedances of the eight hour primary standard for ozone in 2007 (due to mathematical rounding, an exceedance is any eight hour average >0.085 ppm). Table 10 presents the 2007 data summary for eight-hour ozone at MCAQD monitoring sites. Also in 2007, there were no violations of the eight-hour primary standard (the 8-hour average NAAQS for ozone is violated when the three-year average of the fourth high is greater than 0.08 (0.085 with rounding) ppm; however several sites came very close to violating the standard (Table 11). 2007 Air Monitoring Network Review 19 Maricopa County Air Quality Table 10 2007 8-hour Average Ozone Summary Site Blue Point 8-hour max. (PPM); Date: Hour .066; 08/14:12 2nd High (PPM); Date: Hour .066; 08/15:11 3rd High (PPM); Date: Hour .059; 05/11:10 4th High (PPM); Date: Hour .058; 06/07:11 Number of Days t 0.085 0 Buckeye .066; 05/10:11 .066; 07/17:10 .064; 06/07:12 .064; 06/08:10 0 Cave Creek .083; 05/11:11 .079; 05/17:12 .079; 07/05:12 .077; 05/24:11 0 Central Phoenix .073; 07/22:10 .073; 08/15:11 .070; 08/08:12 .070; 08/28:11 0 Dysart .069; 08/31:11 .069; 09/11:11 .068; 08/15:11 .065; 07/11:08 0 Falcon Field .080; 08/15:10 .074; 08/11:13 .074; 08/14:11 .073; 07/04:10 0 Fountain Hills .083; 08/15:12 .078; 08/14:10 .074; 05/10:10 .074; 05/11:10 0 Glendale .075; 05/11:11 .075; 07/22:09 .074; 07/17:10 .071; 04/29:11 0 Humboldt Mt. .080; 05/24:16 .079; 06/07:21 .079; 08/08:18 .078; 05/11:13 0 North Phoenix .081; 05/11:11 .081; 08/15:11 .080; 05/17:11 .078; 07/22:10 0 Pinnacle Peak .076; 05/11:13 .076; 08/14:11 .075; 08/08:15 .075; 08/15:12 0 Rio Verde .082; 05/11:11 .082; 08/15:11 .080; 05/10:11 .079; 05/24:13 0 South Phoenix .079; 08/15:10 .077; 05/11:11 .073; 05/10:11 .072; 08/14:10 0 South Scottsdale .082; 08/15:11 .077; 06/23:10 .077; 07/06:10 .077; 08/14:10 0 Tempe .084; 08/15:11 .077; 06/23:11 .077; 08/14:11 ..076; 07/06:11 0 West Chandler .084; 08/15:10 .079; 08/16:11 .074; 07/06:11 :.072; 07/04:10 0 West Phoenix .079; 05/11:11 ..077; 07/22:09 .076; 08/15:11 .074; 05/17:11 0 Note: this table is read as the bold number representing the data followed by the date and time, e.g. the maximum 8-hour averaged ozone reading at the Blue Point site was .066 PPM on August 14 during the 12 o’clock hour. 2007 Air Monitoring Network Review 20 Maricopa County Air Quality Table 11 3 Year Average of 8-Hour Ozone Site th th 3 Yr. Avg. of 4th High (PPM)* Buckeye High (PPM) 2006 4 High (PPM) 2007 4 High (PPM) 0.081 .079 0.058 0.065 .067 0.064 Cave Creek 0.082 .080 0.077 0.079 Central Phoenix 0.078 .080 0.07 0.076 Dysart 0.066 .072 0.065 0.067 Falcon Field 0.076 .079 0.073 0.076 Fountain Hills 0.088 .084 0.074 0.082 Glendale 0.076 .078 0.071 0.075 Humboldt Mt. 0.087 .079 0.078 0.081 North Phoenix 0.084 .085 0.078 0.082 Pinnacle Peak 0.083 .076 0.075 0.078 Rio Verde 0.087 .083 0.079 0.083 South Phoenix 0.076 .069 0.072 0.072 South Scottsdale 0.077 .080 0.077 0.078 Tempe 0.076 .079 0.076 0.077 West Chandler 0.075 .081 0.072 0.076 West Phoenix 0.068 .082 0.074 0.074 Blue Point 2005 4 th 0.072 0.065 *Note that this average value has been truncated (not rounded) to the third significant digit. 2007 Air Monitoring Network Review 21 Maricopa County Air Quality Particulate Matter <=10 Microns (PM10) Figure 4 2007 PM10 Monitoring Sites (includes continuous and non-continuous sites) During 2007, fifteen PM10 monitors were reported as operational in AQS (Figure 4). All PM10 monitors are classified as SLAMS; except for Coyote Lakes which is classified as a Special Purpose (SP) monitor (Table 5). Note that the South Phoenix site operated a filter-based PM-10 monitor from January to June 2007 and a continuous PM-10 monitor from July to December 2007. However, due to a constraint within AQS, data continued to be inserted into AQS as daily averages, rather than hourly averages, after switching to the continuous monitor. This continued until the end of the year; on January 1, 2008 the South Phoenix PM-10 monitor was switched to an hourly collection schedule in AQS. The hourly continuous monitoring data from South Phoenix was also entered into AQS under an alternate monitor number (POC 2). The 24-hour Primary standard for PM10 is 150 µg/m3 (155 µg/m3 with mathematical rounding). This standard is violated when the expected number of exceedance for the calendar year is more than one. A formula, as detailed in 40 CFR 50, is used to determine the expected number of exceedances. The formula takes into account the number of days sampling occurred and the number of valid samples collected. A 3-year average of these estimated days is then used to determine compliance. On December 18, 2006 new monitoring rules from the EPA revoked the PM10 annual primary standard, although the annual average is still displayed below for informational purposes (Table 12). For calendar year 2007, there were eight sites that exceeded the PM10 24-hour standard, and there were seven sites that violated the PM10 24-hour standard (described in Table 20 and Table 21). 2007 Air Monitoring Network Review 22 Maricopa County Air Quality Table 12 2007 PM10 Summary Site Name Buckeye (continuous) Central Phoenix (continuous) Coyote Lakes (continuous) Durango Complex (continuous) Dysart Glendale Greenwood (continuous) Higley (continuous) Mesa North Phoenix South Phoenix South Scottsdale West Chandler West 43rd Ave (continuous) West Phoenix (continuous) Number of 24-hr 24-hr 24-hour Average Average NAAQS Max 2nd High Exceedance Expected (Pg/m3) (Pg/m3) s Exceedances Annual Average #Exceptional (Pg/m3) Events Number of Samples 195* 166* 2 2 52.5 2 8666 267* 149 1 1 42.4 1 8680 313* 273* 2 2 47.8# 2 6529# 155* 152 1 1 59.5 1 8589 111 92 94 74 0 0 0 0 35.9 34.1 0 0 58 58 124 123 0 0 50.0 0 8654 230* 199* 5 5.1 53.0 5 8468 110 78 171* 73 104 70 77 160* 61 99 0 0 2 0 0 0 0 7.5 0 0 32.3 33.5 55.6 30.6 36.4 0 0 2 0 0 60 60 214 60 60 227* 225* 6 6 71.8 6 8651 124 116 0 0 47.0 0 8686 *Indicates an exceedance of the standard. # Indicates <75% data recovery. Note that some data have either been, or are in the process of being, classified as exceptional events (see Definition of Terms for explanation of exceptional events). In accordance with the EPA’s exceptional events policy, once approved these data are not used in determining compliance with the NAAQS. Values in Table 12 are from official AQS reports as of the date of publishing this review; exceptional events that have not yet been approved by the EPA will not affect these values until they are approved. The process of approving exceptional events can take over a year after the exceedance day, so some values in Table 12 will change upon EPA approval. On July 2, 2002 (67 FR 44369), EPA found the state implementation plan (SIP) for the Metropolitan Phoenix (Maricopa County), Arizona serious PM10 non-attainment area to be inadequate to attain the 24-hour particulate (PM10) air quality standard at the Salt River monitoring site. Under authority from the Clean Air Act, EPA has required a SIP revision to be submitted by the State of Arizona to correct the inadequacy. In 2004 the Arizona Department of Environmental Quality submitted a SIP addressing the inadequacies in the Salt River Area to the EPA. As of December 31, 2007, Maricopa County has not come into compliance with the NAAQS for PM10. As a result of this, the EPA is requiring a 5% plan to begin in 2008. This required Maricopa County to submit an approved plan to reduce the annual PM10 emissions of Maricopa County by 5% until the standard is met. Failure to comply with this plan or to meet the NAAQS for PM10 will result in further 5% reductions annually, and could result in sanctions from the EPA. 2007 Air Monitoring Network Review 23 Maricopa County Air Quality Particulate Matter <=2.5 Microns (PM2.5) Figure 5 2007 PM2.5 Monitoring Sites (continuous and non-continuous) Currently, MCAQD operates collocated compliance PM2.5 monitors at the West Phoenix site (04-013-0019) and single monitors at the Mesa site (04-013-1003) and the South Phoenix site (04-013-4003) (Figure 5). These compliance PM2.5 monitors all use sample filters and are non-continuous in nature. On July 1, 2007, MCAQD took over weighing the sample filters, a process that was previously done by the ADEQ. All filters are processed and weighed in our newly installed laboratory. In addition to the filter-based monitors, MCAQD operates two continuous PM2.5 monitors at the Durango (04-013-9812) and West Phoenix (04-013-0019) sites. These continuous monitors are FDMS-TEOMs, which are not federal reference or equivalent methods; therefore the data collected from them is not used for compliance purposes. All monitors are identified as SLAMS (Table 5). Note that the PM2.5 network is much smaller than the PM10 network. The reason for this is that historically more concern and resources have been given to PM10 since Maricopa County is not in attainment for this pollutant (Maricopa County is currently in attainment for PM2.5). According to federal regulations, Maricopa County operates the required minimum number of PM2.5 monitors for the MSA. The Air Monitoring Division is currently in the process of determining if the existing network adequately represents the air quality (PM2.5) in Maricopa County. After completing the process, Maricopa County may increase the number of monitors. Additionally, emphasis will be given to deploying continuous monitors. On December 18, 2006, the EPA implemented new primary standards for PM2.5. These new rules changed the 24hour average standard from 65 Pg/m3 to 35 Pg/m3. The annual average standard of 15 Pg/m3 remains unchanged. Compliance with the 24-hour standard is determined by taking the 3-year average of the 98th percentile at each monitoring site. Compliance with the Annual standard is determined by taking the 3-year average of the spatially averaged annual means. There were no exceedances or violations of the 24-hour or Annual PM2.5 standards in 2007. Data is summarized in Table 13 and Table 14 (note that continuous data in Table 14 is not used for 2007 Air Monitoring Network Review 24 Maricopa County Air Quality compliance purposes, it is only shown here for comparison purposes). Averages used for determining compliance with the NAAQS are shown in Table 15 and Table 16. Table 13 2007 PM2.5 Summary (FRM Monitors) 24-hr Avg. 24-hr Avg. 2nd High Max 3 (Pg/m3) (Pg/m ) 24.3 19.7 Site Name Mesa 98th Percentile Value 18.3 Annual Avg. Number of Samples (Pg/m3) 9.72 117 South Phoenix 32.2 30.3 29.2 12.27 118 West Phoenix 33.0 31.3 27.2 10.89 119 Table 14 2007 PM2.5 Data Summary (Continuous Monitors) Site Name Durango Complex (continuous) West Phoenix (continuous) 24-hr Avg. 24-hr Avg. 2nd High Max 3 (Pg/m3) (Pg/m ) 98th Percentile Value Annual Avg. Number of (Pg/m3) Samples 59.75 41.62 30.75 14.20 7824 73.64 63.95 35.71 13.60 8630 Note that data from our continuous monitors are not accepted for compliance purposes. This data is displayed here for comparison purposes only. Table 15 2007 PM2.5 3-Year Averages of 98th Percentile (FRM Monitors) Site Name Mesa South Phoenix West Phoenix 2005 98th Percentile Value 17.5 36.4 40.5 2006 98th Percentile Value 20.1 28.8 28.8 2007 98th Percentile Value 18.3 29.2 27.2 98th Percentile 3-Year Average 18.63 31.47 32.17 Table 16 2007 PM2.5 3-Year Averages of Annual Means (FRM Monitors) Site Name Mesa South Phoenix West Phoenix 2005 Annual Mean 8.92# 12.84 12.91 2006 Annual Mean 9.66 12.69 13.52 2007 Annual Mean 9.72 12.27 10.89 3-Year Average of the Annual Mean N/A 12.60 12.44 # Indicates <75% data availability. 2007 Air Monitoring Network Review 25 Maricopa County Air Quality Nitrogen Dioxide (NO2) Figure 6 2007 Nitrogen Dioxide Monitoring Sites All parts of Maricopa County are in attainment for nitrogen dioxide. During 2007, five NO2 monitors were operational and were reported in AQS (Figure 6). All NO2 monitors are designated as SLAMS (see Table 5). Compliance with the NO2 standard is achieved when the annual arithmetic mean concentration in a calendar year is less than or equal to 0.053 ppm, rounded to three decimal places. For calendar year 2007, no exceedances of the NO2 annual standard were recorded at MCAQD monitoring sites (Table 17). Table 17 2007 Nitrogen Dioxide Summary Site NO2 Avg. 1-hour Max. (PPM); Date: Hour NO2 Avg. 1-hour 2nd High (PPM); Date: Hour Number of 1-hour Samples Annual Average (PPM) Buckeye .069; 08/27:14 .052; 12/06:17 7337 .0102 Central Phoenix .077; 03/17:19 .076; 01/18:09 8520 .0237 Greenwood .094; 01/16:08 .091; 01/08:07 8427 .0290 South Scottsdale .068; 11/06:18 .064; 03/15:19 8137 .0163 West Phoenix .082; 01/02:08 .079; 11/28:17 8422 .0209 2007 Air Monitoring Network Review 26 Maricopa County Air Quality Sulfur Dioxide (SO2) Figure 7 2007 Sulfur Dioxide Monitoring Sites Maricopa County is in attainment for SO2. During 2007, two SO2 monitors were operational and were reported in AQS (Figure 7). Both of these monitors were designated SLAMS (see Table 5). Sulfur Dioxide has an Annual and 24-hour average primary standard and a 3-hour average secondary standard. A violation of the primary standard occurs when the annual mean exceeds 0.030 ppm or when a 24-hour average of 0.14 ppm is exceeded more than once per calendar year. A violation of the 3-hour average secondary standard occurs when a 3-hour average of 0.5 ppm is exceeded more than once per year. For calendar year 2007, no exceedances of the SO2 Annual, 24-hour, or 3-hour standard were recorded at Maricopa County monitoring sites (see Table 18). Table 18 2007 Sulfur Dioxide Summary 1-hour 1-hour 3-hour 3-hour 24-hour 24-hour Max. 2nd High Max. 2nd High Max. 2nd High Annual Number (PPM); (PPM); (PPM); (PPM); (PPM); (PPM); Avg. of Site Date: Hour Date: Hour Date: Hour Date: Hour Date: Hour Date: Hour (PPM) Samples Central .065; .046; .011; .009; .007; .005; .0015 8625 Phoenix 10/29:17 02/06:10 01/15:08 01/08:08 02/06:23 01/08:23 South .010; .009; .006; .006; .005; .004; .0019 8431 Scottsdale 06/13:08 07/16:08 02/07:20 02/22:20 02/22:23 02/15:23 2007 Air Monitoring Network Review 27 Maricopa County Air Quality 2007 NAAQS Exceedance and Violation Summary The following is a summary of the number, types and dates of exceedances and violations of the NAAQS for 2007 (Table 19). Table 19 2007 NAAQS Exceedances and Violations Summary Carbon Monoxide No exceedances or violations of the 1-hr or 8-hr NAAQS standard were logged. Nitrogen Dioxide No exceedances or violations of NAAQS were logged. Ozone No exceedances or violations of the NAAQS were logged. There were 11 unique days when at least one monitor exceeded the standard. There were 19 individual exceedances of the 24-hour standard which occurred at 7 different sites. There were 7 violations of the 24-hour standard. No exceedances or violations of the NAAQS were logged. No exceedances or violations of NAAQS were logged. PM10 PM2.5 Sulfur Dioxide Table 20 details all of the site and dates of the 24-hour PM10 standard. Note that this table includes all exceedances, even those that have been or are in the process of being classified as exceptional events. Exceptional events are not used in calculating compliance with the NAAQS. Table 20 2007 PM10 24-hour Average Exceedance Details Date Value (µg/m3) 07/19 195* 11/15 166* Central Phoenix 07/19 267* Coyote Lakes 07/19 273* 10/21 313* Durango Complex 11/15 155* Higley 06/06 181* 07/19 199* 08/16 195* 08/23 230* 10/24 174* South Phoenix 04/12 171* 08/13 160* West 43rd Avenue 03/27 227* 04/12 202* 05/04 197* 06/06 225* 07/19 178* 08/16 215* *This value has been entered as an exceptional event. EPA concurrence with the exceptional event is pending. Note: Exceedance is any 24-hour average with value •155 µg/m3. Site Buckeye 2007 Air Monitoring Network Review 28 Maricopa County Air Quality 2007 Violations of the 24-Hour PM10 Standard The 24hr NAAQS for particulates is violated when the rate of expected occurrence of exceedances (samples greater than or equal to 155 µg/m3) is greater than one over three consecutive years (Table 21) (40 CFR Part 50.6 (a)). Table 21 Violations of the 24-hr PM10 Standard 2005 2006 2007 Buckeye Rate of 24-hr 24-hr 24-hr Expected Max. Max. Max. Expected Expected Expected (µg/m3) Exceedances (µg/m3) Exceedances (µg/m3) Exceedances Exceedances 169 2 272* 3 195* 2 2.3 Central Phoenix 116 0 Coyote Lakes Durango Complex Dysart N/A N/A 206 13 76 Glendale Site 134* 0 267* 1 0.3 N/A 313#* 2# # 240* 9 155* 1 7.6 0 67 0 111 0 0 84 0 60 0 92 0 0 Greenwood 173 6 166* 1 124 0 2.3 Higley 142 0 177* 2.1 230* 5.1 2.4 N/A Mesa 86 0 75 0 110 0 0 North Phoenix 81 0 79 0 78 0 0 South Phoenix 147 0 132 0 171* 7.5 2.5 South Scottsdale 121 0 76 0 73 0 0 West Chandler West 43rd Avenue West Phoenix 94 0 77 0 104 0 0 233 13.1 260* 18.7 227* 6 12.6 155 6 147* 0 124 0 2.0  Indicates violation of the standard. # Indicates <75% data available. * Indicates Exceptional Events occurred at this site. The listed value is the highest official AQS reading at time of publication. Exceptional Events Table 21 lists the official records in AQS (at time of publication) for exceedances and violations. However, as has been previously noted, some of these 2007 exceedance days have been requested to be classified as exceptional events and a request has been sent to the EPA to remove them from official consideration as compliance data. EPA approval of these requests can take over a year; as of the time of this writing none of the requests have yet been approved. The following table (Table 22) lists the exceedance and violation summary for PM-10 sites provided that all exceptional event requests are approved. 2007 Air Monitoring Network Review 29 Maricopa County Air Quality Table 22 2007 PM-10 Violations Following Expected Approval of Exceptional Events Site Buckeye Central Phoenix Coyote Lakes Durango Complex Dysart Glendale Greenwood Higley Mesa North Phoenix South Phoenix South Scottsdale West Chandler West 43rd Avenue West Phoenix Current AQS 2007 24hr max (µg/m3) 195‡ 267‡ 313#‡ 155‡ 111 92 124 230‡ 110 78 171‡ 73 104 227‡ 124 Projected 2007 24-hr max if events approved (µg/m3) 152 149 125 152 111 92 124 150 110 78 144 73 104 154 124  Indicates violation of the standard. # Indicates <75% data available. ‡ Indicates Exceptional Events occurred at this site. 2007 Air Monitoring Network Review 30 Current AQS 2007 Expected Exceedances 2 1 2# 1 0 0 0 5.1 0 0 7.5 0 0 6 0 Projected 2007 Expected Exceedances (Approx.) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Projected Rate of Exceedances (2005-2007) 1.66 0 # 7.33 0 0 2.3 0.7 0 0 0 0 0 10.6 2.0 Maricopa County Air Quality Pollution Trends The following charts depict the most recent three-year trends (2005–2007) for each criteria pollutant. See Table 4 for explanations of site abbreviations. Carbon Monoxide 10 9 8 PPM 7 2005 6 2006 5 4 2007 3 Standard < 9.0 2 1 W I W P W C TE SS BE C P D Y G L G R M E N P SP 0 Chart 1 2005-2007 8-hr Avg. Carbon Monoxide Maximum Values Nitrogen Dioxide 0.06 0.05 2005 0.04 2006 PPM 2007 0.03 Standard 0.053 0.02 0.01 0 BE CP GR SS WP Chart 2 2005-2007 Nitrogen Dioxide Annual Average Readings 2007 Air Monitoring Network Review 31 Maricopa County Air Quality Ozone 0.100 0.090 0.080 PPM 0.070 2005 0.060 2006 0.050 0.040 2007 0.030 Standard <0.085 0.020 0.010 0.000 BP BE CC CP DY FF FH GL HM NP PP RV SP SS TE WC WP Chart 3 2005-2007 Ozone 4th high 8-hr Average Particulates 350 300 ug/m3 250 2005 2006 2007 Standard <155 200 150 100 50 W C W F W P P SP SS N I E H M C D Y G L G R D L P C C BE 0 Chart 4 2005-2007 PM10 24-hr Average Maximum Values 2007 Air Monitoring Network Review 32 Maricopa County Air Quality 90 80 70 ug/m3 60 50 40 2005 2006 30 2007 20 10 0 BE CL CP DC DY GL GR HI ME NP SP SS WC WF WP Chart 5 2005-2007 PM10 Annual Average 16.00 14.00 12.00 2005 2006 2007 Standard <15 ug/m3 10.00 8.00 6.00 4.00 2.00 0.00 ME SP WP Chart 6 2005-2007 PM2.5 Annual Average 2007 Air Monitoring Network Review 33 Maricopa County Air Quality 45.00 40.00 35.00 2005 ug/m3 30.00 2006 25.00 2007 20.00 15.00 Standard <35 (as of Dec 16, 2006) 10.00 5.00 0.00 ME SP WP Chart 7 2005-2007 PM2.5 98th Percentile Sulfur Dioxide 0.035 0.03 0.025 2005 2006 PPM 0.02 2007 Standard 0.03 0.015 0.01 0.005 0 CP SS Chart 8 2005-2007 Sulfur Dioxide Annual Average 2007 Air Monitoring Network Review 34 Maricopa County Air Quality Special Projects and Network Changes Air quality issues such as the SIP, natural events policy, and permits for new sources are diverse and controversial subjects for the citizens of Maricopa County. Since no policies can be made without high-quality monitoring data, the MCAQD Air Monitoring Division strives to provide the most reliable and relevant air monitoring data to the public. The following is a list of projects and changes that have occurred during the year 2007. Seasonal Monitors MCAQD continues to run some of its carbon monoxide (CO) monitors and ozone (O3) monitors on a seasonal basis (Table 23). Having part of the network operating seasonally allows the County to upgrade instruments, perform preventive maintenance, extend the life expectancy of the instruments, reduce replacement costs, and better utilize its QA and QC resources on the remaining instruments. During the off-season the number of CO and Ozone monitors operating still exceeds the minimum EPA requirements. Table 23 Seasonal Monitors Seasonal Carbon Monoxide Monitors ( Operational Sept. 1 – Apr. 1) Seasonal Ozone Monitors (Operational Apr. 1 – Nov. 1) Buckeye Dysart Glendale Mesa North Phoenix South Phoenix South Scottsdale Tempe West Chandler Buckeye Cave Creek Dysart Falcon Field Glendale Humboldt Mountain Rio Verde Tempe West Chandler The Consideration of Additional Sites/Monitors MCAQD continues to evaluate the PM10 network for possible additional sites for determining the impact on ambient pollution levels of significant sources or source categories. The significant sources would include industry and agriculture. The allocation of both financial and personnel resources continue to remain significant obstacles to the establishment of new monitoring sites. New Sites MCAQD started a new site with a PM-10 special purpose monitor in April 2007. This site is called Coyote Lakes and is a middle scale PM-10 monitor with a purpose of evaluating point sources (sand & gravel mining operations) in the area. A new site, tentatively planned to be called the Tolleson site, is planned to be opened in the west valley around the junction of Interstate-10 and the Loop-101. This site has been in the planning stage since 2006, but we are still in negotiations with the City of Tolleson about leasing the land; it is hoped that the site will open in mid 2008. Another site is also in the pre-planning stage for the far west valley/Litchfield Park area. This site will provide coverage between the Tolleson site and the Buckeye site. 2007 Air Monitoring Network Review 35 Maricopa County Air Quality Closed Sites/Monitors MCAQD did not close down any monitors or sites in 2007. Other Network Changes/Special Projects/Comments MCAQD continues to participate in the Joint Air Toxic Assessment Project (JATAP) in conjunction with the Arizona Department of Environmental Quality (ADEQ) and Phoenix area Urban Tribal Communities. We have been providing space at our existing sites (South Phoenix, West Phoenix, and Greenwood) for Hazardous Air Pollutants (HAP) monitoring. 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 issuing of High Pollution Advisories, while MCAQD provides monitoring data and designates No-Burn Days. MCAQD is continuing its distribution of air monitoring data to the public by posting one-hour continuous data on the Internet (see “Maricopa County Interactive Pollution Map” section below). Additionally, MCAQD participates in the EPA Ozone Mapping AIRNow website (see ADDITIONAL COMMENTS). The corresponding websites are as follows: Maricopa County Air Quality Dept: http://aqwww.maricopa.gov/AirMonitoring/SitePollutionMap.aspx AIRNow: http://www.epa.gov/airnow Mobile Monitoring Program MCAQD received approval in late 2006 from the Maricopa County Board of Supervisors to start a Mobile Monitoring program. This program will enable MCAQD to do more source-specific air monitoring (as opposed to the ambient monitoring that we only perform now); the ability to track down sources of air pollutants; the ability to collect and analyze hazardous air-pollutant (HAP) samples; and the ability to perform stack testing of permitted sources. The program will be useful for collecting and analyzing scientific data for various projects, including assisting our compliance division in the enforcement of air pollution control regulations. The planned equipment for the program includes a vehicle outfitted with air monitoring and analytical equipment. Monitoring and sampling equipment will consist of various meteorological, criteria pollutant, and HAP monitors, as well as stack testing equipment. Analytical equipment will include a portable GasChromatograph/Mass Spectrometer (GCMS) and geographical positioning systems. We will be able to use geographical information systems to build geo-referenced models of sampled pollutants. MCAQD is currently working with Maricopa County Human Resources to begin to fill the new personnel positions that will be required for the mobile monitoring program. We are also in the process of the planning the program’s budget and researching equipment choices. 2007 Air Monitoring Network Review 36 Maricopa County Air Quality ADDITIONAL COMMENTS Arizona Department of Environmental Quality Network The ADEQ operates its own monitoring network within the State of Arizona, including some sites within Maricopa County. In addition to these state-run sites, ADEQ also utilizes several MCAQD sites to operate their own monitoring equipment. The ADEQ does a variety of ambient pollution, air toxics, visibility, and meteorological monitoring. One of the main sites in Maricopa County that is operated by ADEQ is the JLG Supersite in central Phoenix. The Supersite is a National Core multi-pollutant monitoring station (NCore) and is part of the national monitoring network (MCAQD’s monitors, on the other hand, are part of the State and Local Air Monitoring network (SLAMS)). For more information about the state’s network or the NCore JLG Supersite consult the ADEQ’s Annual Network Plan on their website at: http://www.azdeq.gov/function/forms/reports.html. EPA Ozone Mapping The AIRNow website (http://www.epa.gov/airnow) provides real-time air pollution (ozone and PM2.5) maps for major metropolitan areas around the United States, including the Phoenix Metropolitan Area. MCAQD has participated in the program since 2001. MCAQD, in cooperation with ADEQ and the Pinal County Air Pollution Control District, has expanded the area that the maps cover. This area now includes sites as far east as Queen Creek, as far south as Casa Grande, and as far west as Palo Verde. This website can be used as a tool for which the public can plan their daily activities and limit their exposure to air pollution. Eight-hour average peak ozone concentration maps and real-time eight-hour ozone animation maps are provided. Colors on the map indicate different concentrations of ozone pollution. The onehour average values are given in parts per billion. The eight-hour averages are converted into Air Quality Index (AQI) numbers. The AQI is based on the NAAQS. The index was developed to convert pollution measurements into a common index that the general public can more easily understand. Figure 8 EPA AIRNow Website Different colors on the map correspond to different categories of air quality and health impacts (Table 24). 2007 Air Monitoring Network Review 37 Maricopa County Air Quality Table 24 Air Quality Index 0 – 50 51 – 100 Color Air Quality Designation Green Good Yellow Moderate 101 – 150 Orange 151 – 200 Red Unhealthy for Sensitive Groups Unhealthy 201 – 300 301 – 500 Purple Maroon Very Unhealthy Hazardous Index Health Impact No harmful effects expected. Unusually sensitive people should consider limiting prolonged outdoor exertion. Active children & adults, people with respiratory disease (i.e., asthma) should limit prolonged outdoor exertion. Everyone should observe caution. Avoid prolonged outdoor exertion. Avoid all outdoor exertion. Use extreme caution outdoors Everyone should avoid all outdoor exertion. The animated map is updated every hour from 8am to 8pm seven days a week. Updates to the site will be made during the ozone season (April through October). Maricopa County’s Interactive Pollution Map In the spirit of our mission statement of “Protecting our most vital natural resource”, MCAQD brought real-time pollution data to the Internet in late 2006. All of the MCAQD continuous data is available to the public through an interactive map (Figure 9). The air pollutants that are available include CO, Ozone, NO2, SO2, and Particulates. Wind Speed and Direction information is also available. Seasonal monitors are noted on the website and the data display will inform the user which monitors are currently active. Data can be accessed at the web address: http://aqwww.maricopa.gov/AirMonitoring/SitePollutionMap.aspx. Data is displayed using actual readings, as well as AQI numbers. Relevant rolling averages are also displayed. In addition, a trend chart is provided so that the previous 24-hours can be detailed. On a separate page, a 30-day pollution history is displayed for each site. One of the major problems in providing “real-time” pollution data to a public medium is providing quality data. The data available on the Internet goes through an automated quality assurance check program before it is released; however, some invalid data can slip through. Normal quality assurance checks take between one and three months. Consequently, information provided at this site should be used for informational purposes only and should not be relied on for comparison with NAAQS. 2007 Air Monitoring Network Review 38 Maricopa County Air Quality Figure 9 Interactive Website Data Trends Page 2007 Air Monitoring Network Review 39 Maricopa County Air Quality REFERENCES 1. Code of Federal Regulations, Chapter 40, Part 50 and 58, 1997 2. EPA’s AirData (AQS) information: http://www.epa.gov/air/data/index.html 3. EPA’s NAAQS Info: http://www.epa.gov/air/criteria.html 4. SIP Information: http://www.adeq.state.az.us/environ/air/plan/index.html 5. EPA’s Air Program Information: http://www.epa.gov/rgytgrnj/programs/artd/air/quality/quality.htm 6. MCAQD Air Monitoring Map: http://aqwww.maricopa.gov/AirMonitoring/SitePollutionMap.aspx. 7. AIRNow: http://airnow.gov/ 8. Criteria Pollutant Information: http://www.epa.gov/air/urbanair/6poll.html 9. MCAQD Prior Network Reviews: http://www.maricopa.gov/aq/divisions/monitoring/network.aspx. 2007 Air Monitoring Network Review 40 Maricopa County Air Quality APPENDIX I - Monitoring Site Details (Photos and Specific Information) 2007 Air Monitoring Network Review 41 Maricopa County Air Quality Blue Point (BP) (04-013-9702) Location: Bush Highway and Usery Pass Rd., Maricopa County Spatial Scale: Urban Monitoring Objective: Maximum Ozone Concentration Site Description: The Blue Point site became operational in July 1995 and is located in a Maricopa County Sheriff’s Sub-Station in Tonto National Forest. This site represents the maximum ozone concentration, and urban-scale downwind transport conditions. This site is located approximately 40 miles east of the Phoenix metropolitan area. Ozone is the only criteria pollutant monitored at this SLAMS station. Wind speed and direction are also monitored at the site. Ozone Max. 8-hr O3 Avg. (PPM) O3 Number of Daily Exceedances >0.085 ppm O3 Three year average of 4th High 2005 0.089* 2 0.081 2006 .064 0 .078 2007 .066 0 0.072 *Indicates an exceedance of the standard. 2007 Air Monitoring Network Review 42 Maricopa County Air Quality Buckeye (BE) (04-013-4011) Location: US 85 & MC 85, Buckeye Spatial Scale: Neighborhood and Urban (NO2) Monitoring Objective: Population Exposure and Source Oriented (NO2) Site Description: The Buckeye site was established on August 1, 2004. This site is a SLAMS location for carbon monoxide, ozone, PM10, and NO2 criteria pollutants. The site is located in the Maricopa County Department of Transportation Southwest Facility. The immediate area is agriculture and encroaching residential development. The PM10 monitor was changed from 1-in-6 day to hourly as of October 1, 2004. Carbon Monoxide Ozone PM10 Nitrogen Dioxide Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) O3 Number of Daily Exceedances >0.085 PPM O3 Three year avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) Annual NO2 Avg. (PPM) 2005 0.9 0 0.067 0 # 169* 2 53* .0119 2006 0.7 0 .072 0 # 272* 3 53.2 .0111 2007 1.0 0 0.066 0 0.065 195*‡ 2‡ 52.5 .0102 *Indicates an exceedance of the standard. # Indicates <75% data recovery. ‡ Indicates Exceptional Events at this site. Listed value is the highest official current AQS reading. 2007 Air Monitoring Network Review 43 Maricopa County Air Quality Cave Creek (CC) (04-013-4008) Location: 32nd St. & Carefree Highway, Cave Creek Spatial Scale: Urban Monitoring Objective: Maximum Ozone Concentration Site Description: The Cave Creek site became operational in August 2001 and is located in the Maricopa County Cave Creek Recreation Area (Park Office). This site was chosen through discussions on modifying the ozone network for the new 8-hr ozone standard. Ozone is the only criteria pollutant monitored at this SLAMS station. Wind speed and direction are also monitored at the site. Ozone Max. 8-hr O3 Avg. (PPM) O3 Number of Daily Exceedances >0.085 ppm O3 Three year average of 4th High 2005 0.084 0 0.080 2006 .088* 1 0.079 2007 .083 0 0.079 *Indicates an exceedance of the standard. 2007 Air Monitoring Network Review 44 Maricopa County Air Quality Coyote Lakes (CL) (04-013-4014) Location: Beardsley Rd & 115th Ave, Surprise Spatial Scale: Middle Monitoring Objective: Source Oriented Site Description: The Coyote Lakes site became operational in April 2007. PM10 is the only pollutant measured at this Special Purpose Monitoring (SPM) site. The monitoring objective of this site is to determine the impact of local sources in the area; the site is located within the Agua Fria river channel which has several sand & gravel mining operations, among other sources such as unpaved roads. Wind speed and direction, temperature, and atmospheric pressure are also monitored at this site; however, the wind data does not meet federal regulations and is therefore not official and is not entered into AQS. Due to neighborhood restrictions, the wind tower cannot be raised to the required height; the wind data from this site is therefore used for reference purposes only. PM10 2005 N/A N/A N/A Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) 2006 N/A N/A N/A 2007 313*‡ 2‡ 47.8# *Indicates an exceedance of the standard. ‡ Indicates Exceptional Events at this site. Listed value is the highest official current AQS reading. # Indicates <75% data recovery. 2007 Air Monitoring Network Review 45 Maricopa County Air Quality Central Phoenix (CP) (04-013-3002) Location: 19th St. and Roosevelt Spatial Scale: Neighborhood Monitoring Objective: High Population Exposure and Highest Concentration (NO2 and SO2) Site Description: The Central Phoenix site has been in existence for over four decades and has provided a longterm 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 site is a SLAMS location for carbon monoxide, ozone, PM10, SO2 and NO2 criteria pollutants. Carbon Monoxide Ozone PM10 Nitrogen Dioxide Sulfur Dioxide Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) O3 Number of Daily Exceedances >0.085 O3 Three year avg. of 4th High Max. 24-hr PM10 Avg. Continuous (µg/m3) Number exceedances Continuous 24-hr PM10 Annual PM10 Avg. Continuous (µg/m3) Annual NO2 Avg. (PPM) Max. 24-hr SO2 Avg. (PPM) Number of Exceedances SO2 Annual SO2 Avg. (PPM) 2005 4.1 0 .081 0 .077 116 0 37 0.0262 .008 0 .0021 2006 3.8 0 .089* 1 .076 134 0 42.0 .0251 .007 0 .0021 2007 4.1 0 .073 0 .076 267*‡ 1‡ 42.4 .0237 .007 0 .0015 *Indicates an exceedance of the standard. ‡ Indicates Exceptional Events at this site. Listed value is the highest official current AQS reading. 2007 Air Monitoring Network Review 46 Maricopa County Air Quality Durango Complex (DC) (04-013-9812) Location: 27th Ave and Durango St. Spatial Scale: Middle Monitoring Objective: Highest Concentration Site Description: This site is located in the Maricopa County Flood Control District storage yard which is one mile northwest from the former Salt River site. Sampling began on January 6, 1999 with the intent to replace the Salt River site. However, in 2000 the USEPA determined that the site is not equivalent to the Salt River site. Continuous particulate monitors (SLAMS PM10 and PM2.5) are located at this site. Note that the PM2.5 monitor located at this site is a continuous FDMS-TEOM monitor, which is not a federal reference method monitor. PM2.5 data from this site is not used to determine compliance with the NAAQS. There are also meteorological monitors (wind speed/direction and atmospheric pressure) located at the site. PM10 PM2.5 Max. 24-hr PM10 Avg. Continuous (µg/m3) Number exceedances Continuous 24-hr PM10 Annual PM10 Avg. Continuous (µg/m3) Max. 24-hr PM2.5 Avg. (µg/m3) Annual PM2.5 Avg. (µg/m3) 2005 206* 13 66* # # 2006 240*‡ 9 69.2‡ 68.17 15.1 2007 155*‡ 1‡ 59.5 59.7 14.2 *Indicates an exceedance of the standard. #Indicates <75% data recovery. ‡ Indicates Exceptional Events at this site. Listed value is the highest official current AQS reading. 2007 Air Monitoring Network Review 47 Maricopa County Air Quality Dysart (DY) (04-013-4010) Location: Bell Rd. & Dysart Rd., Surprise Spatial Scale: Neighborhood Monitoring Objective: 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 site is approx. one mile west of the Agua Fria riverbed. Seasonal carbon monoxide, seasonal ozone, and PM10 (all SLAMS) are the criteria pollutants monitored at this station. Carbon Monoxide Ozone PM10 Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) Number of Daily Exceedances >0.085 PPM Three year avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) 2005 1.3 0 0.073 0 # 76 0 29 2006 0.9 0 .079 0 # 67 0 32.3 2007 2.2 0 .069 0 .067 111 0 35.9 #Indicates <75% data recovery. 2007 Air Monitoring Network Review 48 Maricopa County Air Quality Falcon Field (FF) (04-013-1010) Location: Greenfield and McKellips Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: Ozone is the seasonal SLAMS criteria pollutant monitored at this station. Monitoring began in June of 1989. The site is located near an airfield in a fire station within a growing residential area. Ozone Max. 8-hr O3 Avg. (PPM) Number of Daily Exceedances >0.085 PPM Three year avg. of 4th High 2005 0.081 0 0.075 2006 .085* 1 0.075 2007 .080 0 .076 *Indicates an exceedance of the standard. 2007 Air Monitoring Network Review 49 Maricopa County Air Quality Fountain Hills (FH) (04-013-4010) Location: Fountain Hills Blvd. and Palisades Blvd. Spatial Scale: Neighborhood Monitoring Objective: Maximum Ozone Concentrations Site Description: The site is located at a Fountain Hills fire station. This site became operational in April of 1996. The site monitors ozone (SLAMS) and wind speed and direction. The site is located approximately 15 miles downwind from the Phoenix metropolitan area. This site represents the high downwind concentrations on the fringes of the central basin district along the predominant summer/fall daytime wind direction. Ozone Max. 8-hr O3 Avg. (PPM) Number of Daily Exceedances >0.085 PPM Three year avg. of 4th High 2005 0.096* 6 0.082 2006 0.089* 3 0.082 2007 .083 0 .082 * Indicates an exceedance of the standard. 2007 Air Monitoring Network Review 50 Maricopa County Air Quality Glendale (GL) (04-013-2001) Location: 59th Ave. and Olive Ave. Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: The Glendale site was established over three decades ago and 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. Seasonal carbon monoxide, Seasonal Ozone, and PM10 (all SLAMS) are the criteria pollutants monitored at this station. Carbon Monoxide Ozone PM10 Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) Number of Daily Exceedances >0.085 PPM Three year avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) 2005 2.4 0 0.078 0 0.079 84 0 29 2006 1.9 0 0.084 0 0.076 60 0 36.3# 2007 1.8 0 0.075 0 0.075 92 0 34.1 #Indicates <75% data recovery. 2007 Air Monitoring Network Review 51 Maricopa County Air Quality Greenwood (GR) (04-013-3010) Location: 27th Ave. and I-10, Phoenix Spatial Scale: Middle Monitoring Objective: Population Exposure Site Description: Monitoring began at this site in December 1993. The station is bordered on the north by Interstate 10, on the west and south by neighborhood homes, and to the east by Greenwood Cemetery. Interstate 17 is approximately one mile to the east of the site. Carbon monoxide, NO2, and PM10 are the criteria pollutants monitored at this SLAMS facility. This site was converted to continuous PM10 monitoring in the beginning of 2006. Carbon Monoxide PM10 Nitrogen Dioxide Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) Annual NO2 Avg. (PPM) 2005 4.2 0 173* 1 52* 0.0315 2006 3.6 0 166* 1 51.7 0.0306 2007 4.0 0 124 0 50.0 0.0290 * Indicates an exceedance of the standard. 2007 Air Monitoring Network Review 52 Maricopa County Air Quality Higley (HI) (04-013-4006) Location: Higley Rd. and Williams Field Rd., Gilbert Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: Originally, in 1994, ADEQ set up 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. MCAQD installed a (1-in-6 day) PM10 (SLAMS) in the second quarter of 2000. The data from this site was compared to the Chandler site and was found to be comparable. Since the City of Chandler requested that MCAQD remove the Chandler site on 12/31/05, this site has taken over the role of that site. As of October 2004 the 1-in-6 day PM10 monitor was replaced with an hourly continuous PM10 monitor in accordance with 40 CFR 50, Appendix K. This continuous monitor samples on the neighborhood scale with a monitoring objective of high population exposure. PM10 3 Max. 24-hr PM10 Avg. (µg/m ) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) 2005 142 0 51.4* 2006 177*‡ 2‡ 60.6 2007 230*‡ 5‡ 53.0 * Indicates an exceedance of the standard. ‡ Indicates Exceptional Events at this site. Listed value is the highest official current AQS reading. 2007 Air Monitoring Network Review 53 Maricopa County Air Quality Humboldt Mountain (HM) (04-013-9508) Location: Humboldt Mountain Summit Spatial Scale: Regional Monitoring Objective: Maximum Ozone Concentrations 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 in the Tonto National Forest. This site is located approximately 40 miles north-northeast of the Phoenix metropolitan area at an elevation of 5190 feet. Ozone is the only criteria pollutant that is monitored at this seasonal SLAMS site. Ozone Max. 8-hr O3 Avg. (PPM) Number of Daily Exceedances >0.085 PPM Three year avg. of 4th High 2005 0.088* 5 0.084 2006 .084 0 .081 2007 .080 0 .081 * Indicates an exceedance of the standard. 2007 Air Monitoring Network Review 54 Maricopa County Air Quality Mesa (ME) (04-013-1003) Location: Broadway Rd. and Brooks Ave. Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: This site is located at Brooks Reservoir at the western edge of the city near the Tempe border. It is centered in an area that contains residential, industrial, and a small amount of agricultural activity. An open field borders the site on the west with commercial development to the north, and light industry east and south of the site. Carbon monoxide, PM2.5, and PM10 are the criteria pollutants monitored at this SLAMS site. MCAQD started operation of the PM2.5 Federal Reference Method monitor in May 2005. Carbon Monoxide PM10 PM2.5 Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) Max. 24-hr PM2.5 Avg. (µg/m3) Number of Daily Exceedances Annual PM2.5 Avg. (µg/m3) 2005 2.4 0 86 0 30 17.8 0 8.51# 2006 2.8 0 75 0 30.5 29.1 0 9.66 2007 2.0 0 110 0 32.3 24.3 0 9.72 # Indicates <75% data completeness. 2007 Air Monitoring Network Review 55 Maricopa County Air Quality North Phoenix (NP) (04-013-1004) Location: 7th St. and Butler Ave. Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: This site is located in the Sunnyslope area of North Phoenix. Sunnyslope is an old established neighborhood, primarily residential. High-density population surrounds the site. CO, ozone, and PM10 (all SLAMS) are monitored at this site, along with delta temperature (temperature inversion). Carbon Monoxide Ozone PM10 Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) Number of Daily Exceedances >0.085 Three year Avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) 2005 2.3 0 0.089* 3 0.082 81 0 30 2006 2.0 0 0.094* 4 0.083 79 0 34.4 2007 1.7 0 0.081 0 0.082 78 0 33.5 * Indicates an exceedance of the standard. 2007 Air Monitoring Network Review 56 Maricopa County Air Quality Pinnacle Peak (PP) (04-013-2005) Location: Pima Rd & Pinnacle Peak Spatial Scale: Urban Monitoring Objective: Maximum Ozone Concentrations Site Description: This SLAMS site for ozone is located on the roof of a golf course country club and is surrounded by residential homes. It is located in a geographic area of low-density population (less than 2500 people per square mile). In previous years, ozone exceedances have been recorded due to transport of ozone and precursors from more urbanized areas of metropolitan Phoenix. Ozone Max. 8-hr O3 Avg. (PPM) Number of Daily Exceedances >0.085 Three year Avg. of 4th High 2005 0.085* 1 0.078 2006 0.082 0 0.075 2007 0.076 0 0.078 * Indicates an exceedance of the standard 2007 Air Monitoring Network Review 57 Maricopa County Air Quality Rio Verde (RV) (04-013-9706) Location: Forest Rd. and Del Ray Ave. Spatial Scale: Urban Monitoring Objective: Maximum Ozone Concentrations Site description: This seasonal ozone site became operational in 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 eight miles north of the Fountain Hills SLAMS station, on the edge of a Class I Wilderness Area. Ozone Max. 8-hr O3 Avg. (PPM) Number of Daily Exceedances >0.085 Three year Avg. of 4th High 2005 0.093* 6 0.079 2006 0.086* 1 0.081 2007 0.082 0 0.083 * Indicates an exceedance of the standard 2007 Air Monitoring Network Review 58 Maricopa County Air Quality South Phoenix (SP) (04-013-4003) Location: Central Ave. and Broadway Rd. Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: The site was opened at its current location in October 1999. The site is at the edge of a high population area, but also borders on a mixture of residential and commercial (retail stores, food establishments, and office parks) land use. The station has two high population areas (>5000 people per square miles) north and west of the site. Carbon monoxide, ozone, and PM10 (all SLAMS) are the criteria pollutants monitored at this station. MCAQD started operation of a PM2.5 Federal Reference Monitor in May 2005. Carbon Monoxide Ozone PM10 PM2.5 Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) Number of Daily Exceedances >0.085 Three year Avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) Max. 24-hr PM2.5 Avg. (µg/m3) Number of Daily Exceedances Annual PM2.5 Avg. (µg/m3) 2005 3.8 0 0.081 0 0.075 147 0 55* 56.7 0 11.46 2006 3.2 0 0.075 0 0.072 132 0 55.0 76.2 2 12.69 2007 3.1 0 0.079 0 0.072 171*‡ 2‡ 55.6 32.2 0 12.27 * Indicates an exceedance of the standard. ‡ Indicates Exceptional Events at this site. Listed value is the highest official current AQS reading. 2007 Air Monitoring Network Review 59 Maricopa County Air Quality South Scottsdale (SS) (04-013-3003) Location: Thomas Rd. and Miller Rd. Spatial Scale: Neighborhood, Urban (NO2) Monitoring Objective: 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. This site is located 12 miles east of metropolitan Central Phoenix. Carbon monoxide, ozone, NO2, SO2, and PM10 (all SLAMS) are the criteria pollutants monitored at this station. Carbon Monoxide Ozone PM10 Nitrogen Dioxide Sulfur Dioxide Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) Number of Daily Exceedances >0.085 Three year Avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) Annual NO2 Avg. (PPM) Max. 24-hr SO2 Avg. (PPM) Number of Exceedances SO2 Annual SO2 Avg. (PPM) 2005 2.4 0 0.089* 1 0.076 121 0 34 0.0196 0.006 0 0.0017 2006 2.1 0 0.086* 1 0.076 134 0 32.9 0.0192 0.007 0 0.0021 2007 1.6 0 .082 0 0.078 73 0 30.6 0.0163 0.005 0 0.0019 * Indicates an exceedance of the standard. 2007 Air Monitoring Network Review 60 Maricopa County Air Quality Tempe (TE) (04-013-4005) Location: Apache Blvd. & College Ave. Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: The site was established in 2000. The site was established to fill in a spatial gap between the metropolitan Phoenix area and the city of Mesa. Ozone and carbon monoxide (both SLAMS) are monitored at the site. Carbon Monoxide Ozone Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) Number of Daily Exceedances >0.085 Three year Avg. of 4th High 2005 2.6 0 0.086* 1 0.076 2006 2.5 0 0.087* 1 0.075 2007 2.0 0 0.084 0 0.077 * Indicates an exceedance of standard. 2007 Air Monitoring Network Review 61 Maricopa County Air Quality West Chandler (WC) (04-013-4004) Location: Frye Rd. and Ellis St. Spatial Scale: Neighborhood, Middle (PM-10) Monitoring Objective: Population Exposure Site Description: This site was first established in January 1995. The site was moved one half mile to the southeast in May 2000. A wide range of land uses surround the site including residential, agriculture, and heavy industry (semiconductor manufacturing plants and liquid air storage). Carbon monoxide, ozone, and PM10 are the criteria pollutants monitored at this SLAMS site. Carbon Monoxide Ozone PM10 Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) Number of Daily Exceedances >0.085 Three year Avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) 2005 2.4 0 0.082 0 0.076 94 0 34 2006 2.2 0 0.089* 2 0.075 77 0 33.3 2007 2.0 0 0.084 0 0.076 104 0 36.4 * Indicates an exceedance of the standard. 2007 Air Monitoring Network Review 62 Maricopa County Air Quality West 43rd Avenue (WF) (04-013-4009) Location: 43rd Ave. & Broadway Rd. Spatial Scale: Middle Monitoring Objective: Highest Concentrations 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. The site is surrounded by a combination of heavy industry and residential homes. The site has one continuous TEOM PM10 monitor and a temperature inversion monitor, as well as other meteorological instruments. The main purpose of the site is to measure maximum concentration PM10 and to determine the impact on ambient pollution levels of significant sources or source categories. The sources around the site include sand and gravel operations, auto and metal recycling, landfills, paved and unpaved haul roads, and cement casting. PM10 2005 233* 13 74* Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) 2006 260*‡ 18 79.9 2007 227*‡ 6‡ 71.8 * Indicates an exceedance of the standard. ‡ Indicates Exceptional Events at this site. Listed value is the highest official current AQS reading. 2007 Air Monitoring Network Review 63 Maricopa County Air Quality West Indian School Road (WI) (04-013-0016) Location: Frye Rd. and Ellis St. Spatial Scale: Neighborhood, Middle (PM-10) Monitoring Objective: Population Exposure Site Description: This site is located at the City of Phoenix Firefighter Training Center. This site was opened in December 1980 and is used to monitor micro-scale maximum concentrations and is based on high vehicular traffic. The Average Weekday Traffic (AWT) volume past this location on Indian School Road is estimated to be approximately 55,000 vehicles/day. The site is also in close proximity to Grand Ave. and 35th Ave., which have AWT volumes of about 35,000 vehicles/day. Carbon monoxide is monitored at this SLAMS site. There is current discussion regarding closing this site. The data collected at this site is very similar to that collected at the nearby West Phoenix site, which is neighborhood scale and just under 2 kilometers away. This implies that this micro-scale site is no longer necessary as this area is representative of the other neighborhood scale site. Carbon Monoxide Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO 2007 Air Monitoring Network Review 64 2005 5.3 0 2006 5.3 0 2007 5.0 0 Maricopa County Air Quality West Phoenix (WP) (04-013-0019) Location: 39th Ave. and Earll Dr. Spatial Scale: Neighborhood Monitoring Objective: Population Exposure, Highest Concentration (PM2.5) Site Description: This site became operational in 1984. It is located about one-mile southwest of the West Indian School Road micro-scale CO monitor. The spatial scale for the West Phoenix site is neighborhood. It is located in an area of stable, high-density residential population. Carbon monoxide, PM10, ozone, and NO2 (All SLAMS) are the criteria pollutants monitored at this site. MCAQD also operates collocated PM2.5 FRM monitors and a continuous PM2.5 monitor (SLAMS) at this site. Carbon Monoxide Ozone PM10 PM2.5 Nitrogen Dioxide Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) Number of Daily Exceedances >0.085 Three year Avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) Max. 24-hr PM2.5 Avg. (µg/m3) Number of Daily Exceedances Annual PM2.5 Avg. (µg/m3) Annual NO2 Avg. (PPM) 2005 5.8 0 0.072 0 0.072 155* 1 45 39.2 0 11.08 0.0235 2006 5.0 0 0.096* 3 0.074 147 0 49.8 76.7* 2 13.52 0.0238 2007 4.6 0 0.079 0 0.074 124 0 47.0 33.0 0 10.89 0.0209 * Indicates an exceedance of the standard. 2007 Air Monitoring Network Review 65 Maricopa County Air Quality APPENDIX II - EPA REQUIRED DATA Details compliance with requirements of 40CFR58 §58.10 and Appendices A, C, D, and E 2007 Air Monitoring Network Review 66 Maricopa County Air Quality Required General Information on Monitoring Network Pollutant MSA Carbon Monoxide Ozone 6200 PhoenixMesa 6200 PhoenixMesa 6200 PhoenixMesa 6200 PhoenixMesa 6200 PhoenixMesa 6200 PhoenixMesa 6200 PhoenixMesa Nitrogen Dioxide PM2.5 PM2.5 Continuous Monitors PM10 Sulfur Dioxide MSA Population* 3,251,876 Design Value 3,251,876 1-Hour: 7.7 ppm 8-Hour: 4.6 ppm 0.08 ppm 3,251,876 3,251,876 #Monitors #Monitors Required Operating** 0 13 2 17 0.029 ppm 0 5 3 3 3,251,876 24-hour: 32.2 µg/m3 Annual: 12.4 µg/m3 N/A 2 2 3,251,876 267 µg/m3 6-10 17 3,251,876 3-hour: 0.011 ppm 24-hour: 0.007 ppm Annual: 0.0019 ppm 0 2 *Based on the 2000 United States census. **Only includes monitors operated by MCAQD; does not include monitors operated by other agencies within the MSA. Required General Statement Regarding Changes to the PM2.5 Network In the event that MCAQD needed to move or change a violating PM2.5 monitor the following procedure would be followed: MCAQD 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 for approval. Any action on MCAQD’s part will be dependent on EPA approval. Please note that the previous statement is general in nature and is required to be placed in the annual network review by 40CFR58. MCAQD does not currently have any violating PM2.5 monitors, nor do we have any proposals to move any PM2.5 monitors. Notes regarding appendix data Analysis Method refers to the method used to process filter-based particulate samples. Distance from Supporting Structure refers to those sample probes that are attached to a supporting structure, such as the side of a building. In most cases the sample probe is located above the supporting structure, in which case the entry will say N/A. Distance from Obstructions refers to those obstructions, both on the roof and off the roof, which are located higher than the probe. In the case of a nearby obstruction being higher than the probe, details of its location will be listed in the entry. If there are no obstructions higher than the probe, then the entry will be N/A. 2007 Air Monitoring Network Review 67 Maricopa County Air Quality BLUE POINT County ID: BP AQS ID: 04-013-9702 Address: Bush Highway & Usery Pass Road, Maricopa County Coordinates: 33.54549N – 111.60925W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2007 Air Monitoring Network Review 68 Ozone Continuous N/A No N/A 27 27 (100%) 3 3 (100%) Yes Pending for July 2008 Bi-Weekly N/A 10/22/07 N/A API M400 01/01/1993 SLAMS FEM Max Ozone Concentration Urban Jan-Dec Yes N/A 5.3 meters 360º N/A N/A N/A N/A Bush Highway 160 meters, South 1000 Paved Maricopa County Air Quality BUCKEYE County ID: BE AQS ID: 04-013-4011 Address: 26449 W 100th DR, Buckeye Coordinates: 33.37005N – 111.62070W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2007 Air Monitoring Network Review Ozone Continuous N/A No N/A CO Continuous N/A No N/A NO2 Continuous N/A No N/A PM10 Continuous N/A No N/A 18 18 (100%) 3 3 (100%) Yes Pending for July 2008 Bi-Weekly N/A 10/09/07 N/A 15 15 (100%) 2 2 (100%) Yes Pending for July 2008 Bi-Weekly N/A 9/24/07 N/A 26 25 (96%) 6 4 (67%) Yes Pending for July 2008 Bi-Weekly N/A 11/01/0 N/A 26 26 (100%) 3 3 (100%) Yes Pending for July 2008 N/A Bi-Weekly N/A 3/21/07, 7/24/07 API M400 08/01/2004 SLAMS FEM API M300 08/01/2004 SLAMS FRM API M200 08/01/2004 SLAMS FRM R&P TEOM 08/01/2004 SLAMS FEM Population Exposure Neighborhood Apr-Oct Yes Population Exposure Neighborhood Sep-Mar Yes Source Oriented Urban Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes N/A 4 meters 360º N/A N/A N/A 14 meters, N US Hwy 85 31 meters, N 3000 Paved N/A 4 meters 360º N/A N/A N/A 14 meters, N US Hwy 85 31 meters, N 3000 Paved N/A 4 meters 360º N/A N/A N/A 14 meters, N US Hwy 85 31 meters, N 3000 Paved N/A 4.5 meters 360º N/A N/A N/A 14 meters, N US Hwy 85 31 meters, N 3000 Paved 69 Maricopa County Air Quality CAVE CREEK County ID: CC AQS ID: 04-013-4008 Address: 37019 N Lava Lane, Phoenix Coordinates: 33.82169N – 112.01739W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2007 Air Monitoring Network Review 70 Ozone Continuous N/A No N/A 16 16 (100%) 4 4 (100%) Yes Pending for July 2008 Bi-Weekly N/A 9/18/07 N/A API M400 07/20/2001 SLAMS FEM Max Ozone Concentration Urban Apr-Oct Yes N/A 4.8 meters 360º N/A N/A N/A 20 meters, E 32nd Street 240 meters, NE 1000 Paved Maricopa County Air Quality CENTRAL PHOENIX County ID: CP AQS ID: 04-013-3002 Address: 1645 E Roosevelt, Phoenix Coordinates: 33.45793N - 112.04601W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees 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 Ozone Continuous N/A No N/A CO Continuous N/A No N/A NO2 Continuous N/A No N/A SO2 Continuous N/A No N/A PM10 Continuous N/A No N/A 26 26 (100%) 3 3 (100%) Yes 25 25 (100%) 3 3 (100%) Yes 25 24 (96%) 4 4 (100%) Yes 27 27 (100%) 4 4 (100%) Yes 31 31 (100%) 3 3 (100%) Yes Pending for July 2008 Bi-Weekly N/A 8/22/07 N/A Pending for July 2008 Bi-Weekly N/A 9/27/07 N/A Pending for July 2008 Bi-Weekly N/A 11/23/07 N/A Pending for July 2008 Bi-Weekly N/A 08/02/07 N/A Pending for July 2008 N/A Bi-Weekly N/A 3/21/07, 7/23/07 API M400 06/01/1967 SLAMS FEM API M300 10/01/1966 SLAMS FRM API M200 01/01/1967 SLAMS FRM API M100 01/01/1965 SLAMS FEM R&P TEOM 04/01/1985 SLAMS FEM Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes Highest Concentration Neighborhood Jan-Dec Yes Highest Concentration Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes N/A 11.3 meters 360º N/A N/A N/A N/A 16th Street 88 meters, W 24000 Roosevelt St. 75 meters, N Unknown Paved N/A 11.3 meters 360º N/A N/A N/A N/A 16th Street 88 meters, W 24000 Roosevelt St. 75 meters, N Unknown Paved N/A 11.3 meters 360º N/A N/A N/A N/A 16th Street 88 meters, W 24000 Roosevelt St. 75 meters, N Unknown Paved N/A 11.3 meters 360º N/A N/A N/A N/A 16th Street 88 meters, W 24000 Roosevelt St. 75 meters, N Unknown Paved N/A 11.3 meters 360º N/A N/A N/A N/A 16th Street 91 meters, W 24000 Roosevelt St. 75 meters, N Unknown Paved 2007 Air Monitoring Network Review 71 Maricopa County Air Quality COYOTE LAKES County ID: CL AQS ID: 04-013-4014 Address:20010 N Coyote Lakes Pkwy, Surprise Coordinates: 33.666284N – 112.31042W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2007 Air Monitoring Network Review 72 PM10 Continuous N/A No N/A 19 19 (100%) 1 1 (100%) Yes Pending for July 2008 N/A Bi-Weekly N/A 7/30/07 R&P TEOM 04/02/2007 SLAMS FEM Source Oriented Middle Scale Jan-Dec Yes N/A 2.6 meters 360º N/A N/A N/A N/A Coyote Lakes Pkwy 54 meters, E Unknown (residential street) Gravel/Dirt Maricopa County Air Quality DURANGO COMPLEX County ID: DC AQS ID: 04-013-9812 Address: 2702 RC Esterbrooks Blvd, Phoenix Coordinates: 33.42650N -112.11814W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2007 Air Monitoring Network Review 73 PM10 Continuous N/A No N/A PM2.5 Continuous N/A No Yes 28 28 (100%) 4 4 (100%) Yes Pending for July 2008 N/A Bi-Weekly N/A 7/25/07, 11/26/07 32 32 (100%) 2 2 (100%) Yes Pending for July 2008 N/A Bi-Weekly N/A 7/25/07, 11/26/07 R&P TEOM 07/01/1999 SLAMS FEM R&P FDMSTEOM 07/01/2005 SLAMS None Highest Concentration Middle Jan-Dec Yes Highest Concentration Middle Jan-Dec Yes N/A 3.9 meters 360º N/A N/A N/A 14 meters, S 27th Ave 78 meters, E 16000 Paved N/A 4.8 meters 360º N/A N/A N/A 14 meters, S 27th Ave 76 meters, E 16000 Paved Maricopa County Air Quality DYSART County ID: DY AQS ID: 04-013-4010 Address: 16825 N Dysart Rd, Surprise Coordinates: 33.63713N – 112.34184W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees 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 2007 Air Monitoring Network Review Ozone Continuous N/A CO Continuous N/A No N/A No N/A PM10 1 in 6 days Filters weighed inhouse No N/A 16 16 (100%) 3 3 (100%) Yes Pending for July 2008 Bi-Weekly N/A 9/17/07 N/A 13 13 (100%) 2 2 (100%) Yes Pending for July 2008 Bi-Weekly N/A 09/19/07 N/A N/A N/A 2 2 (100%) Yes Pending for July 2008 N/A Monthly N/A 3/28/07, 11/05/07 API M400 7/21/2003 SLAMS FEM API M300 09/01/2003 SLAMS FRM Anderson SSI 07/14/2003 SLAMS FRM Population Exposure Neighborhood Apr-Oct Yes Population Exposure Neighborhood Sep-Mar Yes Population Exposure Neighborhood Jan-Dec Yes N/A 3.3 meters 360º N/A N/A N/A N/A Dysart 17 meters, W 12000 Bell Rd 495 meters, N 43000 Paved/Gravel N/A 3.3 meters 360º N/A N/A N/A N/A Dysart 17 meters, W 12000 Bell Rd 495 meters, N 43000 Paved/Gravel N/A 2.6 meters 360º N/A N/A N/A N/A Dysart 12 meters, W 12000 Bell Rd 460 meters, N 43000 Paved/Gravel 74 Maricopa County Air Quality FALCON FIELD County ID: FF AQS ID: 04-013-1010 Address: 4530 E McKellips Rd, Mesa Coordinates: 33.45223N – 111.73331W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2007 Air Monitoring Network Review 75 Ozone Continuous N/A No N/A 16 16 (100%) 2 2 (100%) Yes Pending for July 2008 Bi-Weekly N/A 10/10/07 N/A API M400 06/01/1989 SLAMS FEM Population Exposure Neighborhood Apr-Oct Yes N/A 9.3 meters 360º N/A N/A N/A N/A McKellips 58 meters, S 29000 Paved Maricopa County Air Quality FOUNTAIN HILLS County ID: FH AQS ID: 04-013-9704 Address: 16426 E Palisades Blvd, Fountain Hills Coordinates: 33.61103N – 111.72529W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2007 Air Monitoring Network Review 76 Ozone Continuous N/A No N/A 26 26 (100%) 3 3 (100%) Yes Pending for July 2008 Bi-Weekly N/A 9/24/07 N/A API M400 04/01/1996 SLAMS FEM Max Ozone Concentration Neighborhood Jan-Dec Yes N/A 4.3 meters 360º N/A Canopy 1 meter higher than probe, located 9 meters to the south N/A 15 meters, W Palisades Blvd 70 meters, SW 8000 Paved Maricopa County Air Quality GLENDALE County ID: GL AQS ID: 04-013-2001 Address: 6001 W Olive, Glendale Coordinates: 33.56936N – 112.19153W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees 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 2007 Air Monitoring Network Review Ozone Continuous N/A CO Continuous N/A No N/A No N/A PM10 1 in 6 day Filters Weighed In-House No N/A 17 17 (100%) 3 3 (100%) Yes Pending for July 2008 Bi-Weekly N/A 09/10/07 N/A 14 14 (100%) 1 1 (100%) Yes Pending for July 2008 Bi-Weekly N/A 02/01/07 N/A N/A N/A 2 2 (100%) Yes Pending for July 2008 N/A Monthly N/A 3/28/07, 11/5/07 API M400 01/01/1974 SLAMS FEM API M300 01/01/1974 SLAMS FRM Anderson SSI 07/01/1987 SLAMS FRM Population Exposure Neighborhood Apr-Oct Yes Population Exposure Neighborhood Sep-Mar Yes Population Exposure Neighborhood Jan-Dec Yes N/A 6.0 meters 360º N/A N/A N/A N/A Olive Ave 225 meters, S 25000 59th Ave 475 meters, E 30500 Paved N/A 6.0 meters 360º N/A N/A N/A N/A Olive Ave 225 meters, S 25000 59th Ave 475 meters, E 30500 Paved N/A 7.4 meters 360º N/A N/A N/A N/A Olive Ave 227 meters, S 25000 59th Ave 430 meters, E 30500 Paved 77 Maricopa County Air Quality GREENWOOD County ID: GR AQS ID: 04-013-3010 Address: 1128 N 27th Ave., Phoenix Coordinates: 33.46093N – 112.11748W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees 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 2007 Air Monitoring Network Review CO Continuous N/A No N/A NO2 Continuous N/A No N/A PM10 Continuous N/A No N/A 26 26 (100%) 4 4 (100%) Yes Pending for July 2008 Bi-Weekly N/A 12/19/07 N/A 26 26 (100%) 4 4 (100%) Yes Pending for July 2008 Bi-Weekly N/A 12/19/07 N/A 26 26 (100%) 5 5 (100%) Yes Pending for July 2008 N/A Bi-Weekly N/A 8/29/07, 9/5/07 API M300 11/01/1993 SLAMS FRM API M200 11/01/1993 SLAMS FRM R&P TEOM 11/01/1993 SLAMS FEM Population Exposure Middle Jan-Dec Yes Population Exposure Middle Jan-Dec Yes Population Exposure Middle Jan-Dec Yes N/A 4.2 meters 360º N/A N/A N/A 20 meters, NW 27th Ave 10 meters, E 18500 I-10 85 meters, N 229000 Paved N/A 4.2 meters 360º N/A N/A N/A 20 meters, NW 27th Ave 10 meters, E 18500 I-10 85 meters, N 229000 Paved N/A 4.4 meters 360º N/A N/A N/A 20 meters, NW 27th Ave 10 meters, E 18500 I-10 85 meters, N 229000 Paved 78 Maricopa County Air Quality HIGLEY County ID: HI AQS ID: 04-013-4006 Address: 15400 South Higley Road, Gilbert Coordinates: 33.31074N – 111.72255W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees 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 2007 Air Monitoring Network Review 79 PM10 Continuous N/A No N/A 27 27 (100%) 2 2 (100%) Yes Pending for July 2008 N/A Bi-Weekly N/A 2/02/07, 8/28/07 R&P TEOM 07/01/2000 SLAMS FEM Population Exposure Neighborhood Jan-Dec Yes N/A 2.9 meters 360º N/A N/A N/A N/A Higley Rd 117 meters, E 11500 Williams Field Rd 410 meters, S 11500 Paved Maricopa County Air Quality HUMBOLDT MOUNTAIN County ID: HM AQS ID: 04-013-9508 Address: Seven Springs Rd-FAA Radar Station, Tonto National Forest Coordinates: 33.98280N – 111.79870W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2007 Air Monitoring Network Review 80 Ozone Continuous N/A No N/A 18 18 (100%) 3 3 (100%) Yes Pending for July 2008 Bi-Weekly N/A 8/28/07 N/A API M400 01/01/1993 SLAMS FEM Max Ozone Concentration Regional Apr-Oct Yes N/A 4.5 meters 360º N/A N/A N/A N/A N/A (Remote mountaintop site, only reachable by small access road) N/A N/A Dirt/Vegetated Maricopa County Air Quality MESA County ID: ME AQS ID: 04-013-1003 Address: 310 S Brooks, Mesa Coordinates: 33.41045N – 111.86507W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2007 Air Monitoring Network Review CO Continuous N/A No N/A PM2.5 1 in 3 day Filters Weighed In-House No Yes PM10 1 in 6 day Filters Weighed Inhouse No N/A 18 18 (100%) 3 3 (100%) Yes Pending for July 2008 Bi-Weekly N/A 10/10/07 N/A N/A N/A 1 1 (100%) Yes Pending for July 2008 N/A Every 6 Weeks N/A 4/5/07 60 60 (100%) 1 1(100%) Yes Pending for July 2008 N/A Monthly N/A 03/23/07 API M400 01/01/1978 SLAMS FEM R&P 2025 04/28/2005 SLAMS FRM Anderson SSI 01/23/1990 SLAMS FRM Population Exposure Neighborhood Sep-Mar Yes Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes N/A 7 meters 360º N/A N/A N/A N/A Broadway Rd. 305 meters, S 33000 Paved/Gravel N/A 6.9 meters 360º N/A N/A N/A N/A Broadway Rd. 305 meters, S 33000 Paved/Gravel 3.3 meters 6.2 meters 360º N/A N/A N/A N/A Broadway Rd. 305 meters, S 33000 Paved/Gravel 81 Maricopa County Air Quality NORTH PHOENIX County ID: NP AQS ID: 04-013-1004 Address: 601 E Butler Dr., Phoenix Coordinates: 33.56033N – 112.06626W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2007 Air Monitoring Network Review Ozone Continuous N/A CO Continuous N/A No N/A No N/A PM10 1 in 6 day Filters Weighed In-House No N/A 25 25 (100%) 3 3 (100%) Yes Pending for July 2008 Bi-Weekly N/A 08/06/07 N/A 12 12 (100%) 2 2 (100%) Yes Pending for July 2008 Bi-Weekly N/A 01/23/07 N/A N/A N/A 0 N/A Yes Pending for July 2008 N/A Monthly N/A N/A API M400 01/01/1975 SLAMS FEM API M300 01/01/1974 SLAMS FRM Anderson SSI 01/05/1990 SLAMS FRM Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Sep-Mar Yes Population Exposure Neighborhood Jan-Dec Yes N/A 4.6 meters 360º N/A N/A N/A N/A 7th Street 75 meters, E 32000 Gravel N/A 4.6 meters 360º N/A N/A N/A N/A 7th Street 75 meters, E 32000 Gravel N/A 4.4 meters 360º N/A N/A N/A N/A 7th Street 75 meters, E 32000 Gravel 82 Maricopa County Air Quality PINNACLE PEAK County ID: PP AQS ID: 04-013-2005 Address: 25000 N Windy Walk, Scottsdale Coordinates: 33.71231N – 111.85272W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2007 Air Monitoring Network Review 83 Ozone Continuous N/A No N/A 26 26 (100%) 3 3 (100%) Yes Pending for July 2008 Bi-Weekly N/A 9/26/07 N/A API M400 02/01/1988 SLAMS FEM Max Ozone Concentration Urban Jan-Dec Yes N/A 11.9 meters 360º N/A N/A N/A N/A Happy Valley Rd. 61 meters, S 16000 Paved/Grass Maricopa County Air Quality RIO VERDE County ID: RV AQS ID: 04-013-9706 Address: 25608 N Forest Rd., Rio Verde Coordinates: 33.71881N – 111.67183W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2007 Air Monitoring Network Review 84 Ozone Continuous N/A No N/A 17 17 (100%) 3 3 (100%) Yes Pending for July 2008 Bi-Weekly N/A 7/03/07 N/A API M400 01/01/1997 SLAMS FEM Max Ozone Concentration Urban Apr-Oct Yes N/A 6.2 meters 360º N/A N/A N/A 16 meters, S Forest Rd 43 meters, E Unknown Paved Maricopa County Air Quality SOUTH PHOENIX County ID: SP AQS ID: 04-013-4003 Address: 33 W Tamarisk, Phoenix Coordinates: 33.40316N – 112.07533W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method No N/A PM10 1 in 6 day Filters Weighed InHouse No N/A No N/A 16 16 (100%) 2 2 (100%) Yes N/A N/A 0 N/A Yes N/A N/A 0* 0 Yes 12 12 (100%) 0* 0 Yes Pending for July 2008 Bi-Weekly N/A 10/10/07 N/A Pending for July 2008 Bi-Weekly N/A 10/10/07 N/A Pending for July 2008 N/A Every 6 Weeks N/A N/A Pending for July 2008 N/A Monthly N/A N/A Pending for July 2008 N/A Bi-Monthly N/A N/A API M400 10/01/1999 SLAMS FEM API M300 10/01/1999 SLAMS FRM R&P 2025 01/01/2005 SLAMS FRM Anderson SSI 10/01/1999 SLAMS FRM R&P TEOM 7/1/2007 SLAMS FEM Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Sep-Mar Yes Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes N/A N/A N/A N/A 4.9 meters 4.9 meters 5.5 meters 4.9 meters 360º 360º 360º 360º N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Central Ave Central Ave Central Ave Central Ave 168 meters, E 168 meters, E 168 meters, E 165 meters, E 24000 24000 24000 24000 Broadway Rd Broadway Rd Broadway Rd Broadway Rd 385 meters, N 385 meters, N 385 meters, N 385 meters, N 13000 18000 18000 18000 Paved Paved Paved Paved *Filter-based monitoring discontinued in June 2008, continuous monitoring started in July 2008. N/A 5.4 meters 360º N/A N/A N/A N/A Central Ave 165 meters, E 24000 Broadway Rd Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees 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 Ozone Continuous N/A CO Continuous N/A PM2.5 1 in 3 day Filters Weighed In-House No N/A No N/A 27 26 (96%) 3 3 (100%) Yes 2007 Air Monitoring Network Review 85 PM10 Continuous N/A 35 meters, W 13000 Paved Maricopa County Air Quality SOUTH SCOTTSDALE County ID: SS AQS ID: 04-013-3003 Address: 2857 N Miller Rd., Scottsdale Coordinates: 33.47968N – 111.91721W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees 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 Ozone Continuous N/A CO Continuous N/A NO2 Continuous N/A SO2 Continuous N/A No N/A No N/A No N/A No N/A 25 25 (100%) 4 4 (100%) Yes 15 15 (100%) 1 1 (100%) Yes 28 25 (89%) 3 3 (100%) Yes 27 27 (100%) 5 5 (100%) Yes Pending for July 2008 Bi-Weekly N/A 12/17/07 N/A Pending for July 2008 Bi-Weekly N/A 10/17/07 N/A Pending for July 2008 Bi-Weekly N/A 10/17/07 N/A Pending for July 2008 Bi-Weekly N/A 08/27/07 N/A Pending for July 2008 N/A Monthly N/A API M400 01/01/1974 SLAMS FEM API M300 01/01/1974 SLAMS FRM API M200 10/01/1975 SLAMS FRM API M100 01/01/1984 SLAMS FEM Anderson SSI 07/01/1987 SLAMS FRM Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Sep-Mar Yes Population Exposure Urban Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes N/A 5.8 meters 360º N/A N/A N/A 14 meters, S Thomas 66 meters, N 33000 Miller 32 meters, W 13000 Paved N/A 5.8 meters 360º N/A N/A N/A 14 meters, S Thomas 66 meters, N 33000 Miller 32 meters, W 13000 Paved N/A 5.8 meters 360º N/A N/A N/A 14 meters, S Thomas 66 meters, N 33000 Miller 32 meters, W 13000 Paved N/A 5.8 meters 360º N/A N/A N/A 14 meters, S Thomas 66 meters, N 33000 Miller 32 meters, W 13000 Paved 6.5 meters 5.1 meters 360º N/A N/A N/A 14 meters, S Thomas 62 meters, N 33000 Miller 35 meters, W 13000 Paved 2007 Air Monitoring Network Review 86 PM10 1 in 6 day Filters Weighed In-House No N/A N/A N/A 0 N/A Yes N/A Maricopa County Air Quality TEMPE County ID: TE AQS ID: 04-013-4005 Address: 1525 S College, Tempe Coordinates: 33.4124N – 111.93473W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees 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 2007 Air Monitoring Network Review Ozone Continuous N/A No N/A CO Continuous N/A No N/A 17 17 (100%) 3 3 (100%) Yes Pending for July 2008 Bi-Weekly N/A 5/24/07 N/A 16 16 (100%) 1 1 (100%) Yes Pending for July 2008 Bi-Weekly N/A 02/05/07 N/A API M400 07/01/2000 SLAMS FEM API M300 07/01/2000 SLAMS FRM Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Sep-Mar Yes N/A 4.4 meters 360º N/A N/A N/A N/A College Ave 11 meters, W Unknown (secondary street) Apache 370 meters, N 25000 Gravel N/A 4.4 meters 360º N/A N/A N/A N/A College Ave 11 meters, W Unknown (secondary street) Apache 370 meters, N 25000 Gravel 87 Maricopa County Air Quality WEST CHANDLER County ID: WC AQS ID: 04-013-4004 Address: 275 S Ellis, Chandler Coordinates: 33.29898N – 111.88431W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees 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 2007 Air Monitoring Network Review Ozone Continuous N/A CO Continuous N/A No N/A No N/A PM10 Continuous Filters weighed inhouse No N/A 16 16 (100%) 2 2 (100%) Yes Pending for July 2008 Bi-Weekly N/A 9/12/07 N/A 16 16 (100%) 1 1 (100%) Yes Pending for July 2008 Bi-Weekly N/A 01/23/07 N/A N/A N/A 0 N/A Yes Pending for July 2008 N/A Monthly N/A N/A API M400 07/01/2000 SLAMS FEM API M300 07/01/2000 SLAMS FRM Anderson SSI 07/01/2000 SLAMS FRM Population Exposure Neighborhood Apr-Oct Yes Population Exposure Neighborhood Sep-Mar Yes Population Exposure Middle Jan-Dec Yes N/A 4.4 meters 360º N/A N/A N/A 14 meters, E Frye Rd 23 meters, S Unknown (secondary street) Ellis St 73 meters, W Unknown (secondary street) Paved/Gravel N/A 4.4 meters 360º N/A N/A N/A 14 meters, E Frye Rd 23 meters, S Unknown (secondary street) Ellis St 73 meters, W Unknown (secondary street) Paved/Gravel N/A 4.4 meters 360º N/A N/A N/A 14 meters, E Frye Rd 25 meters, S Unknown (secondary street) Ellis St 71 meters, W Unknown (secondary street) Paved/Gravel 88 Maricopa County Air Quality WEST 43RD AVENUE County ID: WF AQS ID: 04-013-4009 Address: 3940 W Broadway, Phoenix Coordinates: 33.40642N – 112.14434W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2007 Air Monitoring Network Review 89 PM10 Continuous N/A No N/A 25 25 (100%) 1 1 (100%) Yes Pending for July 2008 N/A Bi-Weekly N/A 2/6/07 R&P TEOM 04/01/2002 SLAMS FEM Highest Concentrations Middle Jan-Dec Yes N/A 5 meters 360º N/A N/A N/A N/A Broadway Road 37 meters, SE Unknown Gravel Maricopa County Air Quality WEST INDIAN SCHOOL ROAD County ID: WI AQS ID: 04-013-0016 Address: 3315 W Indian School Rd, Phoenix Coordinates: 33.49462N – 112.13095W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2007 Air Monitoring Network Review 90 CO Continuous N/A Yes, consideration of removing monitor N/A 25 25 (100%) 4 4 (100%) Yes Pending for July 2008 Bi-Weekly N/A 10/11/07 N/A API M300 12/01/1980 SLAMS FRM Highest Concentration Micro-scale Jan-Dec Yes N/A 2.6 meters 360º 2 meters from side of building Roofline 2 meters to South, .5 meters above probe N/A N/A Indian School Road 3 meters, N 50,000 Paved Maricopa County Air Quality WEST PHOENIX County ID: WP AQS ID: 04-013-0019 Address: 3847 W Earll, Phoenix Coordinates: 33.48385N – 112.14257W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Precision Checks Passing (Percentage) # Accuracy Checks Performed Annually # Accuracy Checks Passing (Percentage) All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification Last Annual Performance Evaluation Date Last Two Semi-Annual Flow Rate Audit Dates -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover Ozone Continuous N/A CO Continuous N/A NO2 Continuous N/A No No N/A 27 27 (100%) 4 4 (100%) PM2.5 Continuous N/A PM10 Continuous N/A No PM2.5 1 in 3 days Filters Weighed InHouse No No No N/A N/A Yes Yes N/A 26 27 61 25 29 26 (100%) 27 (100%) 61 (100%) 25 3 3 2 2 3 (100%) 3 (100%) 2 (100%) 2 (100%) 29 (100%) 2 (100%) 2 (100%) Yes Yes Yes Yes Yes Yes Pending for July 2008 Bi-Weekly N/A Pending for July 2008 Bi-Weekly N/A Pending for July 2008 Bi-Weekly N/A Pending for July 2008 N/A Every 6 weeks Pending for July 2008 N/A Bi-Weekly Pending for July 2008 N/A Bi-Weekly 8/13/07 11/20/07 07/31/07 N/A N/A N/A N/A N/A N/A 4/11/07, 10/25/07 1/25/07, 3/30/07 1/25/07, 3/30/07 API M400 API M300 API M200 R&P 2025 R&P TEOM 01/01/84 SLAMS FEM 01/01/84 SLAMS FRM 05/24/90 SLAMS FRM 06/13/00 SLAMS FRM R&P FDMSTEOM 09/01/05 SLAMS None 02/01/88 SLAMS FEM Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes Highest Concentration Neighborhood Jan-Dec Yes Highest Concentration Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes N/A N/A N/A 2.3 meters N/A N/A 4.3 meters 360º N/A N/A N/A N/A Thomas 360 meters, S 29,000 Gravel 4.3 meters 360º N/A N/A N/A N/A Thomas 360 meters, S 29,000 Gravel 4.3 meters 360º N/A N/A N/A N/A Thomas 360 meters, S 29,000 Gravel 2.8 meter 360º N/A N/A N/A N/A Thomas 360 meters, S 29,000 Gravel 3.6 meter 360º N/A N/A N/A N/A Thomas 360 meters, S 29,000 Gravel 2.7 meters 360º N/A N/A N/A N/A Thomas 360 meters, S 29,000 Gravel 2007 Air Monitoring Network Review 91 Maricopa County Air Quality APPENDIX III - PUBLIC NOTICE AND COMMENT INFORMATION 2007 Air Monitoring Network Review 92 Maricopa County Air Quality Public Notice Period To fulfill the requirements of 40CFR58 §58.10, Maricopa County Air Quality posted a draft copy of this Network Review on its website on May 14, 2008. On that same day we posted a news item on the website and ran a notice in the Arizona Republic newspaper informing the public that the Review was available for inspection and comment. We also informed the public that a workshop would be held on June16, 2008 where comments and concerns could be addressed. Public Comments Maricopa County Air Quality did not receive any comments from the public regarding the annual Network Review. News Release The following is a copy of the news release that was posted on the Maricopa County website and advertised in the Arizona Republic newspaper: Public Notice The Maricopa County Air Quality Department will hold a public meeting to discuss its 2007 Air Monitoring Network Review on Monday, June 16, 2008 at 1:00 p.m. The meeting will be held at the Air Monitoring Division’s offices at 2145 S. 11th Ave. suite 170, Phoenix, AZ 85007. A copy of the draft network review is currently available on the department’s website at the following website address: http://www.maricopa.gov/aq/divisions/monitoring/docs/pdf/REVIEW07.pdf http://www.maricopa.gov/aq/divisions/monitoring/docs/pdf/REVIEW07_Appendices.pdf Hard copies of the document may be requested from the department’s Records Management Coordinator at (602) 506-6201 or at the department's address: 1001 North Central Avenue, Phoenix, Arizona 85004. Arrangements may be made to view the information every Monday through Friday (excluding major holidays) between 8:00 a.m. and 4:30 p.m. There is a small fee for copying available documents. The 2007 Air Monitoring Network Review covers all ambient air monitoring activity captured by the department’s 24 air monitoring sites in 2007. The Air Monitoring Network Review also provides a summary of the pollutants measured by Maricopa County, a look at the air monitoring network design and monitoring site details and statistics from the past year among other information. Additional information on the draft Air Monitoring Network Review may be obtained by contacting Ben Davis at 2145 S 11th Avenue #170, Phoenix, AZ 85007 or (602) 258-5155 x221. The purpose of this June 16, 2008 public meeting is to receive comments from the public on the draft document. Members of the public may comment in person or through written statements to the department. Written comments shall state the name and mailing address of the person making comment and be signed by that person or authorized agent or attorney. Written comments on the draft document are due to the department by June 23, 2008 at 5:00 p.m. A sign language and/or Spanish interpreter will be made available upon request with 72 hours notice. Additional reasonable accommodations will be made available to the extent possible within the time frame of the request. 2007 Air Monitoring Network Review 93 Maricopa County Air Quality