2013 Ambient Air Monitoring Network Plan Pima County Department of Environmental Quality 33 North Stone, Suite 700 Tucson, Arizona 85701 AQ 386 2013 Ambient Air Monitoring Network Plan Pima County Board of Supervisors Ally Miller Ramón Valadez Sharon Bronson Raymond Carroll Richard Elías Pima County Administrator Charles H. Huckelberry Pima County Department of Environmental Quality Ursula Kramer Director Richard Grimaldi Deputy Director Air Quality Technical Operations Ted Gould Program Manager Data Collection Group Jim McDonnell, Principal Instrumentation Technician Mark Rogers, Senior Instrumentation & Control Specialist Andy Poe, Senior Instrumentation & Control Specialist Data Management Group Tom Coffin, Supervisor Deborah Jentoft, Air Quality Analyst Quality Assurance Group Mike Draper, Program Coordinator PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm n a l N woorrkk PPlan Neettw I. INTRODUCTION This document constitutes the 2013 Ambient Air Monitoring Network Plan for the Pima County air monitoring network. The Pima County Department of Environmental Quality (PDEQ) has prepared this document to be submitted to the U.S. Environmental Protection Agency (USEPA), Region IX. The purpose of the Ambient Air Monitoring Network Plan is to determine if the network is achieving the air monitoring objectives specified in 40 CFR Part 58 Appendix D, which mandate adherence to certain number, type and location requirements of monitoring sites and specific site criteria such as monitoring inlet height. The review should also determine if modifications should be made to the network (e.g. through the termination or relocation of unnecessary stations or addition of new stations). In addition, the review is necessary in order to ensure that the residents of Pima County are provided adequate, representative and useful air quality data, and to provide adequate protection to public health. The designated ambient air pollutants monitored and reported by PDEQ are carbon monoxide (CO), ozone (O 3 ), nitrogen dioxide (NO 2 ), sulfur dioxide (SO 2 ), and particulate matter with an aerodynamic diameter of 10 micrometers or less in size (PM 10 ) and particulate matter with aerodynamic diameter of 2.5 micrometers or less in size (PM 2.5 ). This pollutant data is submitted to the EPA Air Quality System (AQS) database for determination of compliance with National Ambient Air Quality Standards (NAAQS). This report contains statistical data summaries for the 2013 calendar year and provides a site by site assessment of the monitoring network with respect to EPA site criteria. The Pima County monitoring network includes both State or Local Air Monitoring Stations (SLAMS) and Special Purpose monitors (SP). SLAMS monitors comprise the required network monitors that are used for NAAQS comparisons and follow the monitoring objectives listed on page 6. SP monitors are used to conduct special purpose studies and to enhance the network coverage of air quality monitoring data. Pima County has a designated NCore site at the Children’s Park location, which also monitors for reactive oxides of nitrogen (NO Y ), particulate matter, coarse fraction (PM 10-2.5 ), speciated PM 2.5 particulate matter and lead. Pima County does not share monitoring responsibilities with Arizona Department of Environmental Quality at this time. Schedule of EPA’s review of criteria pollutants: Particulate Matter NAAQS – final rule December 2012. Strengthened the PM 2.5 annual to 12 µg/m3 and retained the existing coarse PM 10 standard. 2 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm n a l N woorrkk PPlan Neettw PDEQ made the following network modifications in 2013: Changed PM2.5 colocation sampling schedule from 1 in 12 day to 1 in 6 day at the Children’s Park NCore station. Changed the sampler designation for PM2.5 BAMs from FEM to Other, by modifying the sampler operational parameters, at the Green Valley, Rose Elementary and Geronimo stations. PDEQ’s anticipated network modifications in 2014: Close the Prince Road PM10 microscale monitoring station, due to lack of electricity to operate the sampler. Locate a new PM10 microscale station near the closed Prince Road station. Continue impact analysis of development near the Tangerine ozone and PM10 monitoring station, and if necessary, relocate the station. Install a Met One Super SASS sequential speciation sampler and an upgraded URG carbon sampler at the Children’s Park NCore station, to more easily operate the samplers on a 1in 3 day schedule. General comment regarding monitoring station siting criteria: The locations of monitoring stations in the PDEQ network require considerable planning to conform to all of the siting requirements specified in 40 CFR 58 Appendix E. Locations are chosen only after carefully considering the intent and installation logistics of each station. Some stations remain static, and easily maintain all siting criteria, and others fall victim to urban evolution and nature. Development happens and trees grow, modifying the original circumstances. Development can change those circumstances to the point that relocation or designation change of a station is required. Tree growth is more forgivable in that it can be modified by removal or trimming, but sometimes this is not possible for a number of reasons. Going to the effort of relocating a station because of tree growth is not generally practical. Modifying the station information to categorize trees as an obstruction is preferable, as long as siting criteria still meets the minimum requirements for obstructions. Most of the trees near PDEQ monitoring stations are typical of Sonoran Desert indigenous species, namely mesquite and palo verde, both of which have small, relatively sparse leaves, and in most cases do not totally block airflow, or provide large surfaces for particulate deposition. However, PDEQ has several stations that have been compromised by substantial tree growth, and in each section for those stations, the category for degrees of unrestricted airflow will reflect the reality of tree growth at those stations, and the obstructed airflow will be identified by direction in degrees. 3 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm n a l N woorrkk PPlan Neettw II. BACKGROUND Pima County Air Quality Control District met all the National Ambient Air Quality Standards (NAAQS) in 2013. Concentrations of the criteria pollutants have been stable over the past few years with ozone and particulate matter (PM 10 ) being the major concern for Pima County. Ozone has been very close to the standard, often within 95% of the standard. Particulate Matter (PM 10 ) levels are elevated during drought conditions and high winds which have caused exceedances of the NAAQS in previous years. Regional Evaluation In order to evaluate existing and proposed monitoring stations and their stated objectives, regional information is used. The regional information consists of the most current values for population, major urban developments and directions of growth, traffic and highway data, major industries and aerial photographs showing topography. Population (census tract) data can act as a guide in evaluation of the representativeness of a site for determining population exposure. The 2010 census shows Pima County population at 980,263 and the city of Tucson population at 520,116 . Figure 1 on page 8 illustrates the Eastern Pima County Tucson Air Planning Area. The various incorporated areas and other agency lands are shown, as well as the named mountain peaks that define the planning area for Eastern Pima County, which includes the Tucson Metropolitan area. Average Daily Traffic (ADT) Traffic data is necessary for site evaluations since a large portion of air pollutants in the Tucson basin are caused by vehicular traffic. Traffic volumes and density maps are used in evaluating the monitoring network. This data is routinely compiled and used by local transportation and planning agencies. An analysis of the most current traffic data indicates that the network continues to meet the requirements for the monitoring site type and corresponding spatial scales as initially established. The Average Daily Traffic (ADT) numbers are 24 - hour, two - way volume of averaged weekday traffic. Latitude and Longitude Latitude and Longitude data is also provided for the monitoring sites using Datum WGS84 AZ Central in Decimal.Degrees. Local Geography and Meteorology Tucson, Arizona is a major metropolitan area situated in the Santa Cruz river valley, which is encompassed by the Sonoran Desert at an elevation between 2300 and 2800 feet. Basin and range topography characterizes the region with rugged mountain ranges encircling the valley floor with mountain peak elevations in excess of 9000 feet, thus delineating the Tucson Air Planning Area. The flat or gently rolling valley terrain slopes from the higher south and southeast toward the lower northwest following the Santa Cruz river drainage. 4 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm n a l N woorrkk PPlan Neettw The climate of Tucson is characterized by a hot season normally starting in April and ending in October, and a generally mild winter. Maximum daily temperatures from May through September are usually above 90 degrees Fahrenheit. The average rainfall is around eleven inches per year. Tucson International Airport records show an average of 240 clear days a year (days with less than 50% total cloud cover). The remaining periods include the winter prefrontal situations more common in the north and the prolonged seasons of convective summer storms. Wind velocity and direction changes, associated with the large scale pressure systems, frequently result in localized dust storms. The mountain-valley circulation, along with surface heating during the day and radiational cooling at night, create a predominantly southeast to northwest wind path in the basin. Airflows generally tend to be downvalley (from the southeast) at night and early morning hours, reversing to the upvalley direction (from the northwest) during the day. These downvalley / upvalley flows are strongly influenced by localized upslope / downslope terrain. The normal upvalley airflow is from the northwest, and parallels the Santa Cruz River, but decays well before sunset. This is followed by an hour of light, erratic flows which turn into the downvalley flow from the southeast, and reach their maximum and stabilized speed in four to six hours. The air temperature drops steadily during this interval until the sun rises. The downvalley direction continues for two to five hours past sunrise and then transforms into a short calm period prior to the change to upvalley flows. The southeasterly “monsoon” regime that occurs primarily in the months of July and August is a large scale synoptic feature with considerable yearly variation both in intensity and timing. At the Tucson International Airport, the winds become strong, gusty and southeasterly with high relative humidity, cloud cover and frequent thunderstorms. The mountain – valley circulation tends to be suppressed during this time period. Atmospheric temperature inversions occur almost daily in the Tucson air basin. During the winter months these inversions may become severe with particulate and other pollutants becoming concentrated, remaining near the ground level causing haze. When the sun sets, the ground and surface air cools faster than the air several hundred feet above the surface. Since air temperature normally decreases with increasing altitude, the warm and cool layers are reversed or “inverted”, hence the name ‘temperature inversion’. These temperature inversions are usually strongest on cold, clear winter nights, where there is an absence of cloud cover. Consequently, the inversions “lock” the pollutants near the surface. As the sun causes the cool air layer close to the ground to warm up, vertical mixing and horizontal transport disperse the air pollutants. In the early evening, the low level air inversion begins to form again and often coincides with the evening traffic rush hour. 5 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm n a l N woorrkk PPlan Neettw Definition of Monitoring Objectives, Site Types and Spatial Scales The Pima County ambient air monitoring network is designed to meet three basic monitoring objectives. These objectives listed in Appendix D, 1.1 of 40 CFR 58 are: ♦ To provide air pollution data to the general public in a timely matter; ♦ To comply with ambient air quality protocols and standards in order for data to be used for comparison to the NAAQS; ♦ To support research studies. The monitoring stations which comprise the Pima County network are designed to meet at least one of six basic monitoring site types. As listed in Appendix D, 1.1.1 of 40 CFR 58, the site types: ♦ ♦ ♦ ♦ ♦ ♦ Determine the area of highest concentrations expected to occur in 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 pollution transport among populated areas; Determine the welfare – related impact in more rural and remote areas. The link between general monitoring objectives, site types and the geographical location of a monitoring station is defined as the spatial scale of representativeness, and the relationship is indicated in Table 1 (next page). The goal of each station is to represent a specific air parcel throughout which actual pollution concentrations are reasonably homogeneous. The spatial scales are defined in Appendix D, 1.2 of 40 CFR 58 as follows: ♦ Microscale defines concentrations in air volumes associated with area dimensions from 1 meter to 100 meters; ♦ Middle Scale defines concentrations typical of areas from 100 meters to 500 meters; ♦ Neighborhood Scale defines concentrations typical of areas with dimensions in the 0.5 to 4.0 kilometer range; ♦ Urban Scale defines the overall, city – wide conditions with dimensions in the 4 to 50 kilometer range; ♦ Regional Scale usually defines a rural area with dimensions as much as hundreds of kilometers; ♦ National and Global Scales represent concentrations which characterize nations and the globe as a whole (Pima County does not employ stations under this category). 6 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm n a l N woorrkk PPlan Neettw Table 1 Monitoring Site Types Highest Concentration Population Source Impact General / Background Regional Transport Welfare-Related Impacts Appropriate Spatial Scales Micro, Middle, Neighborhood, sometimes Urban Neighborhood, Urban Micro, Middle, Neighborhood Urban, Regional Urban, Regional Urban, Regional 7 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm n a l N woorrkk PPlan Neettw III. PIMA COUNTY AIR QUALITY MONITORING NETWORK SUMMARY TABLES AND MAP Map # Pollutant 4 PM 10 5 Active Particulate and Lead Monitoring Sites for 2013 Table 2 Address 2498 N. Geronimo Geronimo PM 10 1601 S. 6th Ave. South Tucson 6 PM 10 1016 W. Prince Rd. Prince Road 8 PM 10 22000 S. Houghton Rd. 9 PM 10 6910 S. Santa Clara Ave. 10 PM 10 Corona de Tucson Santa Clara School Green Valley 11 12 PM 10 13 PM 10 PM 2.5 Site Name PM 2.5 Pb 601 N. La Canada Dr. PM 2.5 400 W. River Rd. PM 2.5 3401 W. Orange Grove Rd. Children’s Park NCore Orange Grove 12101 N. Camino de Oeste Tangerine 14 PM 2.5 710 W. Michigan 15 PM 2.5 9597 N. Coachline Blvd. Rose Elementary Coachline PM 2.5 as studies require Mobile 2 PM 10 Map located on Page 11 9 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm n a l N woorrkk PPlan Neettw Map # 2 3 Pollutant CO O3 NO 2 CO 10 11 Active Gaseous Pollutant Monitoring Sites for 2013 Table 3 Address Site Name O3 CO O3 SO 2 NO 2 NO Y 1237 S. Beverly Ave. 22nd & Craycroft 3895 E. 22nd St. 22nd & Alvernon 601 N. La Canada Dr. Green Valley 400 W. River Rd. Children’s Park NCore 13 O3 12101 N. Camino de Oeste Tangerine 14 O3 710 W. Michigan Rose Elementary 15 O3 9597 N. Coachline Blvd. Coachline 2745 N. Cherry Ave. Cherry & Glenn 16 CO 17 O3 11330 S. Houghton Rd. Fairgrounds 18 O3 3905 S. Old Spanish Trail 2601 S. Kolb Rd. Saguaro National Park, East Golf Links & Kolb as studies require Mobile 1 & 2 23 CO CO O3 Map located on page 11 10 2013 Ambient Air Monitoring Network Summary Table Table 4 CARBON MONOXIDE - PIMA COUNTY MONITORING NETWORK SITE NAME AND LOCATION SITE ID (a) PARAMETER (b) 22ND & CRAYCROFT 004-019-1011 42101 CLASSIFICATION (c) DATES (d) SLAMS Jul-73 004-019-1014 42101 SLAMS 004-019-1028 42101 400 W. RIVER ROAD CHERRY & GLENN Mar-75 004-019-1021 42101 SP Oct-98 NCore PRESENT SP Feb-89 SMPL FREQ (i) POC (j) MONITORING SITE TYPE (h) 158 2582 4.1 NEIGHBORHOOD CONTINUOUS 1 POPULATION EXPOSURE 174 2516 3.4 MICROSCALE CONTINUOUS 1 HIGHEST CONCENTRATION 554 2286 4.25 NEIGHBORHOOD CONTINUOUS 1 POPULATION EXPOSURE 54 2400 4.9 NEIGHBORHOOD Cont/Seasonal 1 POPULATION EXPOSURE 1 HIGHEST CONCENTRATION PRESENT 2745 N. CHERRY AVE. GOLF LINKS & KOLB SPATIAL SCALE (h) PRESENT 3895 E.22ND STREET CHILDREN'S PARK NCore ELEV. SMPL FEET (f) HEIGHT (M) (g) PRESENT 1237 S. BEVERLY AVE. 22ND & ALVERNON METHOD (e) 004-019-1031 42101 SP Sept-02 Jan. 1 – March 31 Oct. 1- Dec. 31 093 2661 3 MICROSCALE PRESENT 2601 SOUTH KOLB Cont/Seasonal Jan. 1 – March31 Oct. 1- Dec. 31 NITROGEN DIOXIDE - PIMA COUNTY MONITORING NETWORK SITE NAME AND LOCATION SITE ID (a) PARAMETER (b) 22ND & CRAYCROFT 004-019-1011 42602 CLASSIFICATION (c) DATES (d) SLAMS Jan-73 ELEV. SMPL SPATIAL FEET (f) HEIGHT SCALE (h) (M) (g) SMPL FREQ (i) POC (j) MONITORING SITE TYPE (h) 157 2582 4.1 NEIGHBORHOOD CONTINUOUS 1 POPULATION EXPOSURE 090 2286 4.25 NEIGHBORHOOD CONTINUOUS 1 HIGHEST CONCENTRATION PRESENT 1237 S. BEVERLY AVE. CHILDREN'S PARK NCore METHOD (e) 004-019-1028 42602 400 W. RIVER ROAD Proposed May-98 NCore PRESENT REACTIVE OXIDES OF NITROGEN - PIMA COUNTY MONITORING NETWORK CHILDREN'S PARK NCore 400 W. RIVER ROAD 004-019-1028 42600 NCore Oct-10 SLAMS PRESENT 574 Key located on page 15 12 2286 10.0 NEIGHBORHOOD CONTINUOUS 1 POPULATION EXPOSURE 2013 Ambient Air Monitoring Network Summary Table SULFUR DIOXIDE -PIMA COUNTY MONITORING NETWORK SITE NAME AND LOCATION SITE ID (a) PARAMETER CLASSI(b) FICATION (c) DATES (d) CHILDREN'S PARK NCore 004-019-1028 Oct-10 42401 NCore SLAMS METHOD (e) ELEV. SMPL FEET (f) HEIGHT (M) (g) 560 2286 4.25 SPATIAL SCALE (h) SMPL FREQ (i) NEIGHBORHOOD CONTINUOUS POC (j) MONITORING SITE TYPE (h) 1 POPULATION EXPOSURE PRESENT 400 W. RIVER ROAD OZONE -PIMA COUNTY MONITORING NETWORK SITE NAME AND LOCATION SITE ID (a) PARAMETER CLASSI(b) FICATION (c) 22ND & CRAYCROFT 004-019-1011 44201 SLAMS 004-019-1030 44201 SP 004-019-1028 44201 SLAMS NCore 004-019-1018 44201 SP 004-019-1032 44201 SP 004-019-1034 44201 SP 004-019-1020 44201 SP 3905 S. OLD SPANISH TRAIL 4.1 NEIGHBORHOOD CONTINUOUS 1 POPULATION EXPOSURE July-03 047 2910 3.1 NEIGHBORHOOD CONTINUOUS 1 POPULATION EXPOSURE Sep-97 047 2286 4.25 NEIGHBORHOOD CONTINUOUS 1 POPULATION EXPOSURE Oct-89 047 2638 3.75 URBAN CONTINUOUS 1 HIGHEST CONCENTRATION July-03 047 2387 4.1 NEIGHBORHOOD CONTINUOUS 1 POPULATION EXPOSURE July-03 047 2110 3.1 NEIGHBORHOOD CONTINUOUS 1 POPULATION EXPOSURE Oct-89 047 3078 3.6 URBAN CONTINUOUS 1 BACKGROUND 047 3089 4.1 NEIGHBORHOOD CONTINUOUS 1 HIGHEST CONCENTRATION PRESENT 11330 S. HOUGHTON RD. SAGUARO NATIONAL PARK 2582 PRESENT 9597 N. COACHLINE BLVD FAIRGROUNDS 047 PRESENT 710 W. MICHIGAN COACHLINE POC (j) MONITORING SITE TYPE (h) PRESENT 12101 N. CAMINO DE OESTE ROSE ELEMENTARY SMPL FREQ (i) PRESENT 400 W. RIVER ROAD TANGERINE SPATIAL SCALE (h) PRESENT 601 N. LA CANADA DR. CHILDREN'S PARK NCore Jul-73 METHOD (e) ELEV. SMPL FEET (f) HEIGHT (M) (g) PRESENT 1237 S. BEVERLY AVE. GREEN VALLEY DATES (d) 004-019-0021 44201 SLAMS Jun-82 PRESENT Key located on page 15 13 2013 Ambient Air Monitoring Network Summary Table PM10- PIMA COUNTY MONITORING NETWORK SITE NAME AND LOCATION SITE ID (a) PARAMETER (b) CLASSI- DATES (d) FICATION (c) GERONIMO 04-019-1113 SP 81102 04-019-1001 81102 SLAMS 04-019-1009 81102 SLAMS 04-019-0008 81102 SLAMS 04-019-1026 81102 SP 04-019-1030 81102 SP 04-019-0011 81102 SLAMS 04-019-1018 81102 SP CONTINUOUS 1 POPULATION EXPOSURE Sep-88 127 2420 6.9 NEIGHBORHOOD 1 DAY 1 POPULATION EXPOSURE collocated every 6 day Jul-87 126 2315 4.6 MICROSCALE 6 DAY 1 SOURCE ORIENTED Mar-87 126 3078 2.1 REGIONAL 6 DAY 1 BACKGROUND Jul-94 126 2540 6.45 NEIGHBORHOOD 6 DAY 1 POPULATION EXPOSURE Feb-01 079 2910 4.25 NEIGHBORHOOD CONTINUOUS 1 POPULATION EXPOSURE Jan-85 2234 2.65 NEIGHBORHOOD 1 DAY 2 HIGHEST CONCENTRATION 127 collocated every 6 day Jan-94 126 2638 4 .5 URBAN 6 DAY 1 BACKGROUND 176 2286 3.1 NEIGHBORHOOD 3 DAY 1 POPULATION EXPOSURE 1 POPULATION EXPOSURE PRESENT 12101 N. CAMINO DE OESTE CHILDREN'S PARK NCore NEIGHBORHOOD PRESENT 3401 W. ORANGE GROVE RD. TANGERINE 4.6 PRESENT 601 N. LA CANADA DR. ORANGE GROVE 2452 PRESENT 6910 S. SANTA CLARA AVE. GREEN VALLEY 122 PRESENT 22000 S. HOUGHTON RD. SANTA CLARA POC (j) MONITORING SITE TYPE (h) PRESENT 1016 W. PRINCE RD. CORONA DE TUCSON SMPL FREQ (i) PRESENT 1601 S. 6TH AVE. PRINCE ROAD June- 07 SPATIAL SCALE (h) PRESENT 2498 N. GERONIMO SOUTH TUCSON METHOD (e) ELEV. SMPL FEET (f) HEIGHT (M) (g) 004-019-1028 86101 NCore PM10-2.5 400 W. RIVER ROAD Jan-11 PRESENT LEAD -PIMA COUNTY MONITORING NETWORK CHILDREN'S PARK NCore 400 W. RIVER ROAD 004-019-1028 14129 Proposed NCore SLAMS Feb-12 110 PRESENT 14 2286 2.0 NEIGHBORHOOD 6DAY 2013 Ambient Air Monitoring Network Summary Table PM2.5- PIMA COUNTY MONITORING NETWORK SITE NAME AND LOCATION SITE ID (a) GERONIMO 004-019-1113 PARAMETER (b) 88501 CLASSI- DATES (d) METHOD (e) ELEV. SMPL FICATION FEET (f) HEIGHT (c) (M) (g) SPATIAL SCALE (h) SP July-03 SMPL FREQ (i) POC MONITORING (j) SITE TYPE (h) 733 2452 4.6 NEIGHBORHOOD CONTINUOUS 3 POPULATION EXPOSURE 733 2910 4.8 NEIGHBORHOOD CONTINUOUS 3 POPULATION EXPOSURE 118 2286 3.1 NEIGHBORHOOD 3 DAY 1 POPULATION EXPOSURE 5 POPULATION EXPOSURE PRESENT 2498 N. GERONIMO 004-019-1030 GREEN VALLEY 88501 SP CHILDREN'S PARK NCore July-03 PRESENT 601 N. LA CANADA DR. 004-019-1028 88101 SLAMS NCore Jan-99 PRESENT 400 W. RIVER ROAD CHILDREN'S PARK NCore 004-019-1028 88502 NCore SPECIATION 400 W. RIVER ROAD CHILDREN’S PARK NCore 004-019-1028 88101 NCore SLAMS Feb-02 collocated every 12 day : to every 6 day April 27th 3 DAY 810 2286 3.0 170 2286 4.3 NEIGHBORHOOD CONTINUOUS 3 118 2234 2.65 NEIGHBORHOOD 3 DAY 1 POPULATION EXPOSURE 733 2387 4.9 NEIGHBORHOOD CONTINUOUS 3 POPULATION EXPOSURE 733 2100 4.9 NEIGHBORHOOD CONTINUOUS 3 POPULATION EXPOSURE PRESENT Jan-11 POPULATION EXPOSURE PRESENT 400 W. RIVER ROAD 004-019-0011 ORANGE GROVE 88101 SLAMS 3401 W. ORANGE GROVE RD. 004-019-1032 ROSE ELEMENTARY Jan-99 PRESENT 88501 SP July-03 PRESENT 710 W. MICHIGAN 004-019-1034 COACHLINE 9597 N. COACHLINE BLVD Key: 88501 SP July-03 PRESENT a - Site ID - site identification code used in the AQS database b - Parameter - code used in the AQS database to describe the pollutant monitored c - Classification – described on page 2 d - Dates - dates sampling began and ended e - Method - code used in the AQS database indicating the type of instrument used f - Elev. feet - site elevation in feet g - SPL (M) Height - sample inlet height in meters, specific height range required for uniform collection h - Spatial Scale and Monitoring site type - described on page 6 i - SMPL Freq - frequency of sampling days j - POC - parameter occurrence code used to distinguish between two or more instruments measuring the same parameter at the same time Information provided based on EPA'S 2013 Air Quality System (AQS) data. 15 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw IV. CURRENT MONITORING NETWORK EVALUATIONS PM 10 MONITORING NETWORK REQUIREMENTS The PDEQ PM 10 network consists of nine monitoring sites in eastern Pima County, Arizona. The 2013 network used several different types of PM 10 samplers: R& P Partisol 2000, R& P Partisol-Plus 2025 Sequential, and TEOM 1400. 40 CFR 58, app. D, 4.6 Particulate Matter (PM 10 ) design criteria, provided guidance in determining the minimum number of required PM 10 SLAMS sites for 2013. 2013 PM 10 Design Criteria Table 5 Population Pima County 2010 Census 980,263 MSA Tucson Population Category 500,000 – 1,000,000 Design Value (2011-2013) 0.7 * PM 10 Monitors # Required PM 10 Monitors # Operating Requires 2-4 SLAMS monitors 4 SLAMS monitors No requirement for SP No requirement 4 SP monitors Max Concentration site Max Concentration 3 (µg/m ) South Tucson 165* 1 NCore for PMCoarse * Exceptional Event Flags to consider for the 2013 Design Value Violation History The PM 10 24 hour standard remains at 150 µg/m3. Since the promulgation of the PM 10 standard, July 31, 1987, exceedances of the 24 hour standard have been recorded at monitoring sites in the PDEQ PM 10 network. The Orange Grove site recorded two exceedances of the NAAQS during the 4th quarter of 1988 and the Downtown site recorded three during the 2nd quarter of 1989 (Downtown site was discontinued, September 1999). In 1999, the PM 10 standard was violated with four recorded exceedances at the Orange Grove location and two exceedances at the South Tucson location. Subsequently, the monitoring schedules for the Orange Grove and South Tucson locations have been changed from every six day sampling to every day sampling, as indicated in 40 CFR 50, app. K and 40 CFR 58.13. In 2002 and 2003 there were a total of two exceedances at the Orange Grove location and two exceedances at the South Tucson location. These exceedances do not constitute a violation of the standard. In 2008, there was one exceedance of the standard at the Santa Clara site, which is in the process of an Exceptional Event designation dependant on approval from EPA. In 2009 there was one exceedance at the Orange Grove, South Tucson and Geronimo locations on July 22nd, these exceedances may also be considered as an Exceptional Event dependant on approval from EPA. In 2013, one exceedance on April 8 at the South Tucson location and on April 9th there were three exceedances at the South Tucson, Geronimo, and Green Valley locations. These exceedances may also be considered as an Exceptional Event dependant on approval from EPA. 16 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Quality Assurance for Particulate Matter PM 10 All data quality assessment requirements, as outlined in 40 CFR 58, app. A, have been met for 2013. The precision of PM 10 data is derived from the co-located PM 10 samplers at the South Tucson and Orange Grove sites; the difference in concentration between the two samplers running side-by-side is used to calculate the precision of the data. At the end of each calendar quarter, a combined precision probability interval for monitors is calculated by EPA. The accuracy of PM 10 sampling is assessed by auditing the flow rate of at least 25% of the samplers each calendar quarter, such that each sampler is audited at least once per year. The difference in the flow rate between the audit flow measurement and the flow indicated by the sampler is used to calculate accuracy. A combined accuracy probability interval is calculated for PM 10 along with separate probability limits for each audit concentration level for automated analyzers, and reported to EPA quarterly. Protocol Flow rate verification Flow Rate Audit Flow rate verification Flow Rate Audit Instrument Met One BAM 1020 R&P TEOM 1400 TEOM 1400AB Table 6 Frequency Date Completed 2013 Weekly Quarterly Green Valley 03/07, 05/30, 09/04, 12/12 Geronimo 03/07, 05/29, 08/30, 12/11 R& P Partisol 2000, Monthly R& P Partisol-Plus 2025 Sequential R& P Partisol 2000, Quarterly R& P Partisol-Plus 2025 Sequential Corona de Tucson 03/08,05/24, 08/30, 12/09 Santa Clara 03/07, 05/24, 08/30, 12/19 Prince Road 03/06, 05/23, 08/28, 12/11 Tangerine 03/06, 05/23, 09/03, 12/27 South Tucson 03/07, 05/31, 08/28,12/13 South Tucson (co-located) 03/07, 05/31, 08/28, 12/13 Orange Grove 03/06, 05/23, 08/28, 12/17 Orange Grove (co-located) 03/06, 05/23, 08/28, 12/17 Children’s Park NCore 03/07, 05/29, 08/28, 12/17 None for 2013 NPAP Audit Method 81102 Table 7 Collocated PM 10 Monitors # Required # Primary Collocation Monitors Monitors 1 8 17 # Collocated Monitors 2 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Table 8 Annual summary statistics: NAAQS: 150 µg/m3 24- Hour Average. Orange Grove 0011 142 2nd Annual Highest Average 24-Hour Value 115 26.6 Corona de Tucson 0008 Santa Clara 1026 66 34 14.8 71 71 27.1 Green Valley 1030 Geronimo 1113 434 95 17.1 187 149 30.5 Prince Road 1009 Tangerine 1018 South Tucson 1001 75 64 31.1 73 72 26.8 165 156 26.1 Highest 24- Hr Value Year 2013 Site Particulate Matter Weigh Lab Pima County Department of Environmental Quality operates a filter weigh lab for the processing of Pima County’s PM 10 and PM 2.5 network filters, excluding PM 2.5 speciation filters. This weigh lab follows all requirements set forth in Appendix L of 40 CFR 50. Sampling Schedule Calculation The design value for the Tucson area network was determined using the PM10 SIP Development Guideline, Section 6.3.1 “Table look-up” procedure. Three years of sampling data, 2011 – 2013, were used. For that period, the Orange Grove monitoring location was determined to have the highest design value (excluding possible exceptional events). That value was 112 µg/m3. The ration of this value to the 24 hour standard of 150 µg/m3, 0.7, was then compared to the brackets in Figure 1 from 40 CFR 58.12(e) to arrive at a minimum PM10 sampling frequency of every sixth day. 18 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw PM 2.5 MONITORING NETWORK REQUIREMENTS The PDEQ PM 2.5 network consists of six monitoring sites in eastern Pima County, Arizona. 40 CFR 58.20, App. D. 4.7 PM 2.5 design criteria, provided guidance on the required number of SLAMS monitors. Two SLAMS Federal Reference Method (FRM) monitors were initiated in January, 1999 at the Orange Grove and Children’s Park sites. In addition to two SLAMS monitors, Pima County has four Special Purpose hourly monitors. 2013 PM 2.5 Design Criteria Table 9 PM2.5 SLAMS (FRM and FEM) Population MSA Design Value Annual Daily PM 2.5 PM 2.5 Monitors Pima Tucson Site Design Design Monitors # Operating # Required County Population Value Value Years 2010 Category Years 2011Census 20112013 2013 980,263 500,000 – 1,000,000 Orange Grove 5.6 µg/m3 Requires 1 SLAMS Monitor <85% of NAAQS PM2.5 Continuous (FEM and non-FEM) Design Annual Daily PM 2.5 Value Site Design Design Monitors # Required Value Value Years 2011- Years 2013 2011-2013 2 SLAMS Monitors Children’s 5.8 µg/m3 Park Continuous 4 SP Monitors 19 12 µg/m3 13 µg/m3 No requirement for SP 1- NCore PM 2.5 Monitors # Operating 1- NCore PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Method 88101 Method 118 88101 POC 3 Method 170 Table 10 Collocated PM 2.5 Monitors # Required Collocation # Primary Monitors Monitors 1 2 # Collocated Monitors 1 1 1A 1 A BAM 1020 FEM at Children’s Park NCore site is collocated with a PM2.5 FRM also at that site, that does not meet inlet separation requirements at this time. General Statement regarding changes to the PM 2.5 network: PDEQ does not have any violating monitors or proposals to move or change any monitors at this time. In the event of changes to the PM 2.5 network or violating monitors, PDEQ would detail all information and present it to the public for comment and would forward all comments and information to EPA for approval. After approval, PDEQ would then initiate any changes. The SLAMS FRM monitors are filter-based low-volume samplers that collect a sample for 24 hours on a 1 in 3 day cycle. A co-located sampler at the Children’s Park NCore site runs on a 1 in 6 day cycle for precision assessment. Continuous PM 2.5 monitoring was initiated in May, 2000 at the Green Valley site using Beta Mass Attenuation and a very sharp-cut cyclone. This installation was a pilot project and was followed by similar installations at the Rose Elementary and Coachline monitoring sites. All three sites were a part of the EMPACT project (Environmental Monitoring for Public Access and Community Tracking), designed to provide near real-time data to the public via the internet and PDEQ web pages. A fourth monitor was added at the Geronimo site to provide fine particulate data for AQI reporting. The Met One BAM 1020 monitors provide automatic concentration measurement on an hourly basis, and output the reading to the site data logger, which is then polled every hour, and the data posted on the PDEQ website. The data obtained by both FRM and continuous PM 2.5 monitors in Tucson are submitted quarterly to the EPA’s Air Quality System (AQS) database. Pima County Department of Environmental Quality operates a filter weigh lab for the processing of Pima County’s PM 10 and PM 2.5 network filters, excluding PM 2.5 speciation filters. This weigh lab follows all requirements set forth in 40 CFR 50, App. L. The PM 2.5 Chemical Speciation Trends Network was established by EPA in 1999 to determine the chemical speciation of fine particulates. PM 2.5 speciation monitoring began in Pima County at the Children’s Park location in February, 2002. The samples are analyzed for total mass, forty eight elements, cations, nitrate, sulfate, organic and elemental carbon. Analysis and reporting is completed by RTI International. Summary PM 2.5 data for 2013 is included in this report. 20 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Violation History The old PM 2.5 standard (December 17, 2006): the annual PM 2.5 standard is met when the three year average of the spatially averaged annual mean is less than or equal to 15ug/m3 and the 24 hour standard is met when the three year average of the 98th percentile value at each site is less than or equal to 35ug/m3. The new PM 2.5 standard (December 14, 2012): the annual PM 2.5 standard is met when the three year average of the spatially averaged annual mean is less than or equal to 12ug/m3 and the 24 hour standard is met when the three year average of the 98th percentile value at each site is less than or equal to 35ug/m3. No exceedances of the annual or 24 - hour NAAQS were recorded in Tucson in 2013. Quality Assurance for Particulate Matter PM2.5 All data quality assessment requirements as outlined in 40 CFR 58, app. A have been met in 2013, and include both internal and EPA PEP audits, and the co-located sampler at the Children’s Park NCore site. The accuracy of PM 2.5 sampling is assessed by auditing the flow rate each calendar quarter. The difference in the flow rate between the audit flow measurement and the flow indicated by the sampler is used to calculate accuracy. A combined accuracy probability interval is calculated for PM 2.5 along with separate probability limits for each audit concentration level for automated analyzers. Pima County reports the results of all valid precision and accuracy tests on a quarterly basis to the Air Quality System (AQS) database. Table 11 Protocol Flow rate verification Flow Rate Audit Instrument Met One BAM 1020 Frequency Weekly Date Completed 2013 Met One BAM 1020 Quarterly Green Valley 03/07, 05/30, 09/04, 12/12 Geronimo 03/07, 05/29, 08/30, 12/11 Rose Elementary 03/07, 05/30, 08/28, 12/12 Coachline 03/06, 05/23, 09/03, 12/27 Children’s Park 03/07, 05/29, 09/05, 12/17 Flow rate verification R& P Partisol-Plus 2025 Sequential R & P 2000 R& P Partisol-Plus 2025 Sequential R& P 2000 (Co- located) Met One SASS (Speciation) URG – 3000N (Speciation) Monthly Flow Rate Audit NPAP Audit Quarterly Orange Grove 03/06, 05/23, 08/28, 12/04 Children’s Park 03/07, 05/29, 08/28, 12/17 Children’s Park (Co-located) 03/07, 05/29, 08/28,12/17 Children’s Park (Speciation, SASS) 03/07, 05/29, 08/28, 12/17 Children’s Park (Speciation,URG) 03/07, 05/29, 08/28, 12/17 None 21 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Table 12 Annual summary statistics: NAAQS PM 2.5 : 15 µg/m3 Annual Average, 35 µg/m3 24 Hour Average. Highest 24 Hr Value 2nd Highest Value 3rd Highest Value 4th Highest Value 98th % Annual Value Average Orange Grove 21.3 14.3 12.2 11.8 12.2 5.24 Children’s Park 16.5 12.3 11.7 9.8 11.7 5.04 32.4 21.2 19.3 19.2 15.7 6.81 18.0 13.8 13.6 12.9 13.8 6.56 Green Valley 78.2 15.4 12.2 12.0 11.0 4.90 Geronimo 33.6 31.3 31.0 25.1 23.0 9.32 Rose Elementary Coachline 37.5 24.6 23.5 22.4 15.0 7.49 25.3 24.6 21.6 17.8 14.0 6.12 Year 2013 Site (Meth. 118) Children’s Park (Meth. 170) Children’s Park (Speciation) PM 10 - 2.5 (PM-Coarse) MONITORING NETWORK REQUIREMENTS 2013 Ambient Air Monitoring Network Plan Pima County is monitoring for PM- Coarse at the Children’s Park NCore station as part of the monitoring requirements for an NCore station. PM-Coarse is the arithmetic difference between separate but concurrent collocated measurements of PM10 and PM2.5, also referred to as PM10-2.5. Pima County is following the requirements set forth in 40 CFR Part 50, App O. The PM2.5 portion of this method is the monitor described on page 35. The PM10 monitor is described on page 36. Year 2013 Children’s Park NCore PM10 - PM2.5 (86101) Table 13 Annual summary statistics Highest 24- Hr 2nd Highest 24Value Hour Value 43.0 35.0 22 Annual Average 14.34 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw OZONE MONITORING NETWORK REQUIREMENTS Ozone (O 3 ) is currently being monitored at seven locations in Tucson and one location in Green Valley. Pima County monitors year round for ozone. EPA has revised the minimum monitoring requirements for ozone. The design criteria for ozone monitoring is described in 40 CFR 58, app. D, Table D-2. Population Pima County 2010 Census 980,263 MSA Tucson Population Category 500,000 – 1,000,000 Table 14 2013 O 3 Design Criteria Design Value 8- Hour Design Site Value (2011-2013) Saguaro Park 040190021 .073 ppm O 3 Monitors # Required O 3 Monitors # Operating Requires 2 SLAMS Monitors No Requirement for SP 3 SLAMS Monitors 5 SP Monitors Violation History On March 12, 2008, EPA strengthened the ground level ozone standard, effective May 27, 2008. The primary standard of 0.08 ppm has been lowered to 0.075 ppm, keeping the form of the standard as the three year average of the fourth highest daily maximum eight hour average ozone concentration. The secondary standard is identical to the primary standard. While higher maximum one hour and second high one hour ozone values tend to be measured near the urban core, the more suburban and rural sites measure higher overall average ozone concentrations. In general the east side (Saguaro National Park East) is the area with the highest average ozone levels. The situation may be caused by the topography of the valley and the way air flows within it. The precursor pollutants are emitted, and in conjunction with sunlight and heat, will form ozone, which is typically transported by air currents to outlying areas. Quality Assurance for Ozone All data quality assessment requirements outlined in 40 CFR 58, app. A, have been met in 2013. The requirements include precision checks a minimum of every other week with a check gas range between 0.01 and 0.10 ppm with Pima County performing the precision check at 0.075 ppm, representing the highest level we are likely to achieve. The annual internal audits for accuracy are performed with four point check levels at zero, 0.035ppm, 0.065ppm, and 0.085ppm. Pima County maintains an ozone primary standard which is verified annually for accuracy by the California Air Resources Board in Sacramento. Pima County passed the NPAP Ozone TTP Audit for 22nd and Craycroft. All valid precision and accuracy tests are reported to the Air Quality System (AQS) database on a quarterly basis. 23 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw OZONE MONITORING NETWORK REQUIREMENTS Table 15 Ozone Audit Dates 2013 22nd St. & Craycroft 06/12, 12/06 Children’s Park 03/13, 09/25 Fairgrounds 06/03, 12/09 Tangerine 03/06, 09/03 Saguaro Park 06/03, 12/09 Coachline 03/06, 09/03 Rose Elementary 05/30, 12/12 Green Valley 05/30, 12/12 NPAP Ozone TTP Audit Dates 2013 Coachline 04/23 Fairgrounds 04/23 Table 16 Annual summary statistics: NAAQS: 0.075 ppm 4th highest 8- Hour Average Year 2013 Site 22nd St. & Craycroft 1011 Children’s Park 1028 Fairgrounds 1st Max. 1- HR Avg 1st Max. 8- HR Avg 4th Max. 8- HR Avg .083 .071 .063 .082 .075 .071 .087 .078 .072 .085 .076 .066 .084 .076 .074 .080 .074 .066 .082 .073 .070 .079 .073 .069 1020 Tangerine 1018 Saguaro Park 0021 Coachline 1034 Rose Elementary 1032 Green Valley 1030 24 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw CARBON MONOXIDE MONITORING NETWORK REQUIREMENTS Motor vehicles are the primary source of carbon monoxide (CO) in the Tucson area. The latest reports from the Arizona Department of Transportation (MVD) show that there were 940,571 vehicles registered in Pima County in 2012, compared with 923,271 in 2008 and 611,398 in 1998. In spite of increased vehicular traffic, CO levels have dropped considerably since the county began monitoring in 1973. The dramatic decrease can primarily be contributed to the progress made by automobile manufacturers in meeting federally mandated tailpipe emissions standards and to the state vehicle inspection / maintenance programs. Carbon Monoxide is monitored at five locations throughout the Pima County air quality control district. The revised requirements for Carbon Monoxide 40 CFR 58, app. D, 4.2 state that there is no minimum number of CO monitoring sites required. Pima County is operating under the auspices of the CO Limited Maintenance Plan (LMP) and has maintained the same number of sites in order to meet and exceed the requirements of the LMP. Population Pima County 2010 Census 980,263 2013 CO Design Criteria Table 17 MSA 1- Hour CO Monitors Tucson Design Value # Required Population Category 2012-2013 500,000 – 1,000,000 2.3ppm No Specific Requirement CO Monitors # Operating 2 SLAMS Monitors 3 SP Monitors Violation History No exceedances of the National Ambient Air Quality Standards for CO were recorded in Tucson in 1989 through 2013. In January 1988, the eight - hour health standard of nine parts per million was exceeded once at two monitoring sites on the same day. The last exceedance of the eight - hour standard prior to 1988 occurred in December 1986 at a special purpose microscale location (Broadway / Craycroft). Pima County’s status for CO was reclassified to attainment with the implementation of a Limited Maintenance Plan on April 25, 2000 by the EPA. The Carbon Monoxide Limited Maintenance Plan was developed in conjunction with Pima Association of Governments and approved by EPA to help mitigate any future violations. The plan allows for additional mobile monitoring of CO at high volume intersections, and a microscale site located at Golf Links & Kolb was established, September, 2002. 25 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw CARBON MONOXIDE MONITORING NETWORK REQUIREMENTS Quality Assurance for Carbon Monoxide All data quality assessment requirements as outlined in 40 CFR 58, app. A, have been met in 2013. The precision of SLAMS automated analyzers is based on one-point precision QC checks with a minimum frequency of every two weeks, when each analyzer is challenged by a known concentration of a check gas. For CO the concentrations are between 1.0 and 10.0 ppm. The requirements include annual audits performed in-house for accuracy. Three levels are reported of the four audit point levels that are used for CO. The audit levels are: level two at 0.900 -2.99 ppm, level three at 3.0-7.99 ppm, level four at 8.0-15.99 ppm and level five at 16.0-30.99 ppm. All valid precision and accuracy tests are reported to the Air Quality System (AQS) database on a quarterly basis. Table 18 Carbon Monoxide Audit Dates 2013 Craycroft & 22nd St. 06/12, 12/06 Children’s Park 03/14, 09/25 Cherry & Glenn; Seasonal 03/29, 12/10 Alvernon & 22nd St. 03/14, 09/04 Golf Links & Kolb; Seasonal 03/29, 12/10 NPAP Carbon Monoxide TTP Audit Dates 2013 None Table 19 Annual summary statistics: NAAQS: 35ppm 1-Hour Average, 9ppm 8- Hour Average Year 2013 1st Max. 1- HR Avg 2nd Max. 1- HR Avg 1st Max. 8- HR Avg Site Craycroft & 22nd St 1011 1.6 1.6 0.7 0.7 Children’s Park 1028 1.0 0.9 0.7 0.6 Cherry & Glenn 1021 2.1 1.8 1.2 1.1 Alvernon & 22nd St. 1014 2.3 1.8 1.1 1.1 Golf Links & Kolb 1031 1.4 1.3 0.9 0.8 26 2nd Max. 8- HR Avg PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw NITROGEN DIOXIDE MONITORING NETWORK REQUIREMENTS Nitrogen dioxide (NO 2 ) is currently measured at two locations in Tucson. The Environmental Protection Agency has revised the NO 2 requirements. The 40 CFR 58, app. D, 4.3, design criteria document states that there are no minimum requirements for the number of NO 2 monitoring sites in Pima County. Pima County is included in phase three near road implementation and will not be required to install a monitoring station for this project until 2017. 2013 NO 2 Design Criteria Table 20 Population Pima County 2010 Census 980,263 MSA Tucson Population Category Annual Design Value 1- Hour 98th Percentile Design Value # of Required NO 2 Monitors # of NO 2 Monitors 500,000 – 1,000,000 9.7 ppb 46 ppb No Requirement 1 SLAMS Monitor 1 SP Monitor No Requirement Historical Nitrogen Dioxide Monitoring Nitrogen dioxide levels remain well within federal standards. The Craycroft and 22nd St. monitor has been operational since 1973, measuring typical neighborhood NO 2 concentrations. Much of the data has been used in studies measuring the effects of NO 2 as a precursor to ozone formation. A NOx analyzer was operating at the Pomona site from 1988 until 1996, when the site was closed. The re-establishment of the site at the Children’s Park location in May, 1998, allows for monitoring on the north side of Tucson and in the lower valley area. A NOx analyzer was operating at the Downtown site until early 1989. From 1995 to December 2001, NOx monitoring was conducted at Saguaro National Park East to establish baseline conditions in a Class I Wilderness Area. 27 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw NITROGEN DIOXIDE MONITORING NETWORK REQUIREMENTS Quality Assurance for NO 2 All data quality assessment requirements outlined in 40 CFR 58, app. A, have been met for 2013. The requirements include precision QC checks with a minimum frequency of every other week with a check gas range between 0.01 and 0.10 ppm and annual internal audits for accuracy with three point check levels between 0.008 - 0.019 ppm, 0.02 – 0.049 ppm and 0.05 – 0.099 ppm . All valid precision and accuracy tests are reported to the Air Quality System (AQS) database on a quarterly basis. 2013 precision and accuracy tests will be reported in ppb. Table 21 Nitrogen Dioxide Audit Dates 2013 Craycroft & 22nd St. 06/12, 12/16 Children’s Park 03/14, 09/25 Nitrogen Dioxide TTP Audit Dates 2013 None Table 22 Annual summary statistics: NAAQS: 100 ppb 1- Hour Average (98th percentile of the 1-hour concentrations averaged over three years); 53 ppb Annual Average 1st Max. 1- Hour Avg 1 - Hour 98th Percentile Annual Mean Site Craycroft & 22nd St 1011 48.1 43.7 9.68 Children’s Park 1028 44.6 39.7 10.98 Year 2013 28 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw REACTIVE OXIDES OF NITROGEN (NO Y ) MONITORING NETWORK REQUIREMENTS Reactive Oxides of Nitrogen is currently monitored at one location in Pima County fulfilling the NCore site requirement. Quality Assurance for NO y All data quality assessment requirements outlined in 40 CFR 58, app. A, have been met for 2013. The requirements include include precision QC checks with a minimum frequency of every other week with a check gas range between 0.01 and 0.10 ppm and annual internal audits for accuracy with three point check levels between 0.008 - 0.019 ppm, 0.02 – 0.049 ppm and 0.05 – 0.099 ppm . All valid precision and accuracy tests are reported to the Air Quality System (AQS) database on a quarterly basis. 2013 precision and accuracy tests will be reported in ppb. Table 23 Reactive Oxides of Nitrogen Audit Dates 2013 Children’s Park NCore 03/13, 09/25 Reactive Oxides of Nitrogen TTP Audit Dates 2013 None NPAP Audit Dates 2013 None Table 24 Annual summary statistics: reported in ppb 1st Max. Annual Year 1- Hour Mean 2013 Site Avg Children’s Park 1028 169.3 13.44 29 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw SULFUR DIOXIDE MONITORING NETWORK REQUIREMENTS Sulfur Dioxide (SO 2 ) is currently monitored at one location in Pima County. On October 1, 2010, an SO 2 trace monitor was added at the Children’s Park NCore location as required for an NCore site. The SO2 monitor at the 22nd and Craycroft was discontinued on December 31, 2010. The Environmental Protection Agency has revised the SO 2 requirements. The design criteria indicated in 40 CFR 58, app. D, 4.4, states that there are no minimum requirements for the number of SO 2 monitoring sites. 2013 SO 2 Design Criteria Table 25 Population Pima County 2010 Census MSA Tucson Population Category Total SO 2 [tons/year] Based on 2008 NEI Population 1- Hour Weighted Design Emissions Value Index # of Required SO 2 Monitors # of SO 2 Monitors No Requirement 1 NCore SLAMS [million persons- tons per year] 980,263 500,000 – 1,000,000 4850 4754 6.0 ppb Historical Sulfur Dioxide Monitoring Ambient concentrations of sulfur dioxide (SO 2 ) in Tucson have historically remained well below all federal standards, and in recent years have been extremely low. With new trace SO 2 monitoring we can now get more accurate readings at very low levels. The only major stationary sources of SO 2 possibly affecting ambient concentrations in the Tucson air planning area are the coal burning generators at the Irvington Road power plant operated by Tucson Electric Power. Quality Assurance for SO 2 All data quality assessment requirements outlined in 40 CFR 58, app. A, have been met for 2013. The requirements include precision checks every other week with a check gas range between 0.01 and 0.10 ppm and annual internal audits for accuracy with three point check levels between 0.008 - 0.019 ppm, 0.02 – 0.049 ppm and 0.05 – 0.099ppm . All valid precision and accuracy tests are reported to the Air Quality System (AQS) database on a quarterly basis. Table 26 Sulfure Dioxide Audit Dates 2013 Children’s Park NCore 03/13, 09/26 Sulfure Dioxide TTP Audit Dates 2013 None 30 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Table 27 Annual summary statistics: NAAQS: 75 ppb 1- Hour Average (99th percentile of the 1- hour daily maximum concentrations, averaged over 3 years) 1st Max. 1–Hour Annual Year th 1- Hour 99 Mean 2013 Avg Percentile Site Children’s Park NCore 1028 7.5 6.6 0.24 LEAD MONITORING NETWORK REQUIREMENTS Lead is currently monitored at the Children’s Park NCore location in Pima County. Lead sampling and analysis was discontinued at the end of March, 1997, in Pima County. The Environmental Protection Agency regulations allowing for the cessation of ambient lead monitoring in most areas of the country, except in areas with stationary sources of lead. Most urban areas have seen a dramatic decrease in ambient lead levels since the phase out and ban of lead in gasoline. On October 15, 2008 EPA strengthened the lead standard. Research and technology has shown that adverse health effects occur at much lower levels of lead in blood than previously thought. Children are particularly vulnerable to the effects of lead. The primary standard of 1.5 ug/m3 has been lowered to 0.15ug/m3, measured as total suspended particles (TSP).The secondary standard is identical to the primary standard. According to the 2005 National Air Emissions Inventory (NEI) from EPA, Pima County has no sources of lead of one ton or more. This means that Pima County is required to perform area monitoring only, which is done at the Children’s Park NCore location. Monitoring and reporting began in February 27, 2012. The sampling schedule for lead is based on the 2013 EPA’s monitoring sampling schedule with a one in six day schedule for the primary monitor and a one in twelve day schedule for the collocated lead monitor. The design criteria indicated in 40 CFR 58, app. D, 4.5, states that there is one required lead monitor. 2013 Lead Design Criteria Table 28 NCore Site MSA Tucson Population Category Population Pima County 2010 Census 980,263 Lead Design Value # Required monitors # of Pb Monitors Children’s Park 500,000 – 0.00* 1 1- NCore 040191028 1,000,000 1- Collocated • Design Value based on limited number of valid three month means. Sampling began 2/27/2012. 31 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Historical Lead Monitoring Lead concentrations are extremely low in Tucson. Lead monitoring began in Pima County in 1975 at eight TSP sampling locations. In August, 1978, lead analyses were discontinued at all but two sites. Magnetic Observatory (University of Arizona) and Prince Road were selected to represent a neighborhood site and roadway site, respectively. Lead sampling was started at a third site (Broadway & Swan) in January 1983. Lead analysis at Magnetic Observatory was discontinued in 1983 due to lack of detectable levels of lead. A TSP sampler was installed at South Tucson in 1991 for purposes of lead analysis. This site, along with the other two remaining sites, (Prince Road and Broadway & Swan) adequately fulfilled the siting criteria for measuring potential highest urban concentrations of lead in the particulate monitoring network. In March of 1992 the Broadway & Swan lead analysis was discontinued and the TSP samplers from the South Tucson and the Magnetic Observatory sites were moved to the 22nd & Craycroft site. 22nd & Craycroft and Prince Road sites remained until March of 1997. Quality Assurance for Lead All data quality assessment requirements outlined in 40 CFR 58, app. A, have been met for 2013. The requirements include quarterly flow rate verification and audits. All valid precision and accuracy tests are reported to the Air Quality System (AQS) database on a quarterly basis. Protocol Flow rate verification Flow Rate Audit NPAP Audit Instrument Tisch Hi Vol with Brushless Motor Table 29 Frequency Date Completed 2013 Quarterly 03/27, 06/06, 07/29, 08/28, 9/20, 11/26,12/16 Collocated: 1/13, 5/02, 7/16, 8/28, 10/28,11/26,12/16 Quarterly 03/7, 06/18, 09/05, 12/17 Collocated: 03/7, 06/18, 09/05, 12/17 none Table 30 Annual summary statistics: NAAQS Lead: 0.15 µg/m3 three month average 1st Max. 2nd Max. Annual Year 24- Hour 24- HR Mean 2013 Avg Avg Site Children’s Park 1028 .007 .007 .0028 V. DETAILED SITE AND MONITOR INFORMATION 32 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw CHILDREN’S PARK NCore: AQS # 040191028 Site Name AQS ID Address Latitude / Longitude Elevation Surrounding landscape Location description Site Description CHILDREN’S PARK NCore 040191028 400 W. River Road, Tucson, AZ 32.295150 / -110.982300 2286 Gravel in walled compound, dirt parking lot, dry river bed This site is located at the confluence of the Rillito River and Pima Wash, a natural low spot in the local topography. Single - family residences and a popular county park with exercise trails extend to the north, northwest, and west, respectively. Heavy commercial usage dominates to the south and east, including large shopping malls and automobile dealerships. 33 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name CHILDREN’S PARK NCore Pollutant Method Code Number of monitors Parameter code / POC Basic monitoring objective / Statement of Purpose Site Type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical Lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT PM2.5 Primary 170 1 88101 / 3 NAAQS Comparison / Population Exposure Suitable for comparison to PM 2.5 NAAQS Site meets 40 CFR 58, Appx. A,C,D,E Population Exposure Met One / Bam 1020 FEM PDEQ / PDEQ n/a SLAMS NCore Neighborhood 359 0 0 Continuous 4.3 meters 360 n/a n/a n/a 14.3 meters n/a 16.3 m / every 3 days / R&P 2025 ** see comments below Arizona State Route 77 runs north - south 0.5 kilometers to the east, providing six lanes of heavily used arterial routing with a 2008 ADT of 43,000. River Road runs east – west 0.5 kilometers to the north, with a 2010 ADT of 38,000. YES YES Comments: Continuous PM 2.5 sampling began at this neighborhood scale site on January 23, 2011. Colocation of the BAM 2.5 continuous monitor is currently limited to the FRM 2.5 sampler located on a platform near the shelter. 34 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name CHILDREN’S PARK NCore Pollutant Method Code Number of monitors Parameter code/ POC Basic monitoring objective / Statement of Purpose Site Type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical Lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height PM2.5 Primary 118 1 88101 /1 NAAQS Comparison / Population Exposure Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Suitable for comparison to PM 2.5 NAAQS Site meets 40 CFR 58, Appx. A,C,D,E Population Exposure R& P Partisol-Plus 2025 FRM PDEQ / PDEQ PDEQ SLAMS NCore Neighborhood 121 0 0 Every three days 3.1 meters above the ground on a platform located in a city water well site. 290, from 280 to 210, includes predominant wind direction from 135 (SE) n/a n/a n/a 8.0 meters n/a 1.2 meters /Every twelve days (after April 27, 2013 every six days) / R&P 2000 Arizona State Route 77 runs north - south 0.5 kilometers to the east, providing six lanes of heavily used arterial routing with a 2008 ADT of 43,000. River Road runs east – west 0.5 kilometers to the north, with a 2010 ADT of 38,000. Yes Yes Comments: Sampling began in 1999. 35 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name CHILDREN’S PARK NCore Pollutant Method Code Number of monitors Parameter code/ POC Basic monitoring objective / Statement of Purpose Site Type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical Lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height PM2.5 Collocated 117 1 88101 (POC 2 as of March, 2014) Collocated monitor / Requirement Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Suitable for comparison to PM 2.5 NAAQS Site meets 40 CFR 58, Appx. A,C,D,E Population Exposure R& P Partisol-Plus 2000 FRM PDEQ / PDEQ PDEQ SLAMS NCore Neighborhood 48 0 0 Every twelve days; after April 27, 2013 every six days 3.1 meters above the ground on a platform located in a city water well site. 270, from 290 to 200, includes predominant wind direction from 135 (SE) n/a n/a n/a 8.0 meters n/a 1.2 meters /Every twelve days (after April 27, 2013 every six days) / R&P 2000 Arizona State Route 77 runs north - south 0.5 kilometers to the east, providing six lanes of heavily used arterial routing with a 2008 ADT of 43,000. River Road runs east – west 0.5 kilometers to the north, with a 2010 ADT of 38,000. Yes Yes Comments: This is the collocated monitor for Children’s Park NCore PM 2.5 . 36 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name CHILDREN’S PARK NCore Pollutant Method Code Number of monitors Parameter code / POC Basic monitoring objective / Statement of Purpose Site Type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical Lab Monitor type Scale Number of daily observations Number / Dates of exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height PM Coarse PM10-PM2.5 176 2 86101/ 1 Research support / NCore requirement Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ schedule / Collocated monitor type Nearest roads distance & direction to monitor /ADT Site meets 40 CFR 58, Appx. A,C,D,E Population exposure R& P Partisol-Plus 2025 Sampler Pair FRM PDEQ/ PDEQ PDEQ NCore Neighborhood 119 0 0 Every three days 3.1 meters above the ground on a platform located in a city water well site. 290, from 280 to 210, includes predominant wind direction from 135 (SE) n/a n/a n/a 8.0 meters n/a 1.2 m / 1 in 3 days / n/a Arizona State Route 77 runs north - south 0.5 kilometers to the east, providing six lanes of heavily used arterial routing with a 2008 ADT of 43,000. River Road runs east – west 0.5 kilometers to the north, with a 2010 ADT of 38,000. Yes Comments: The subtraction method for determining the coarse PM fraction was initiated in 2011, using a matched pair of Partisol- Plus samplers. 37 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name CHILDREN’S PARK NCore Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height PM 2.5 SPECIATION Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E 810 1 88502/ 5 Research support for the Chemical Speciation Network Population Exposure Met One SASS with URG 3000N Other Pima County Department of Environmental Quality/ RTP RTP NCore 90 0 0 Every 3rd day 3 meters above the ground on a platform located in a city water well site. 290, from 290 to 200, includes predominant wind direction from 135 (SE) n/a n/a n/a SASS 5.2 meters n/a n/a Arizona State Route 77 runs north - south 0.5 kilometers to the east, providing six lanes of heavily used arterial routing with a 2008 ADT of 43,000. River Road runs east – west 0.5 kilometers to the north, with a 2010 ADT of 38,000. Yes Comments: Sampling began for PM2.5 Speciation in 2000. 38 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name CHILDREN’S PARK NCore Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of houly observations Number / Dates of standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height CARBON MONOXIDE Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E 554 1 42101/ 1 NAAQS comparison / NCore requirement Population Exposure Thermo Scientific / 48i -TLE FRM PDEQ / PDEQ n/a Special Purpose Neighborhood 8741 0 0 Continuous 4.25 meters above the ground on a shelter in a city water well site FEP Teflon/ 11.84 seconds 360 n/a n/a n/a 14.0 meters n/a n/a Arizona State Route 77 runs north - south 0.5 kilometers to the east, providing six lanes of heavily used arterial routing with a 2008 ADT of 43,000. River Road runs east – west 0.5 kilometers to the north, with a 2010 ADT of 38,000. Yes Comments: This site began monitoring for Carbon Monoxide in October, 1998. 39 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name CHILDREN’S PARK NCore Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 8-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height OZONE Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ schedule/collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E 047 1 44201/ 1 NAAQS comparison / Maintenance of long term ozone monitoring at this location Population Exposure Thermo Scientific / 49i FEM PDEQ/ PDEQ n/a SLAMS NCore Neighborhood 365 0 One in 1999; One in 2002 Continuous 4.25 meters above the ground on a shelter located in a city water well site. FEP Teflon / 5.9 seconds 360 n/a n/a n/a 16.4 meters n/a n/a Arizona State Route 77 runs north - south 0.5 kilometers to the east, providing six lanes of heavily used arterial routing with a 2008 ADT of 43,000. River Road runs east – west 0.5 kilometers to the north, with a 2010 ADT of 38,000. Yes Comments: This site began August of 1997 and is a relocation (1.5 kilometers, northeast) of the Pomona site. This site is representative of a neighborhood scale in the north central region of the air planning area where ozone levels are generally expected to be high due to the low altitude and the prevailing southeasterly winds. 40 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name CHILDREN’S PARK NCore Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of hourly observations Number / Dates of standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height NITROGEN DIOXIDE Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ schedule/collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E 090 1 42602/ 1 NAAQS comparison / Maintenance of long term monitoring at this location Highest Concentration Ecotech / 9841 T FRM PDEQ / PDEQ n/a Special Purpose / Proposed NCore neighborhood 8632 0 0 Continuous 4.25 meters above the ground on a shelter located in a city water well site FEP Teflon / 5.1 seconds 360 n/a n/a n/a 12.8 meters n/a n/a Arizona State Route 77 runs north - south 0.5 kilometers to the east, providing six lanes of heavily used arterial routing with a 2008 ADT of 43,000. River Road runs east – west 0.5 kilometers to the north, with a 2010 ADT of 38,000. Yes Comments: The site began monitoring for Nitrogen Dioxide in May, 1998, and is a relocation (1.5 kilometers, northeast) of the Pomona site. 41 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name CHILDREN’S PARK NCore Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of standard exceedances in 2013 Historical exceedances Current Sampling frequency / season Probe height REACTIVE OXIDES OF NITROGEN (NO Y ) Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ schedule/collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E 574 1 42600/ 1 Research support / Comply with NCore requirements Population Exposure Thermo Scientific / 42i - Y n/a PDEQ / PDEQ n/a SLAMS NCore neighborhood 8662 0 0 Continuous 10.0 meters above the ground on a shelter located in a city water well site FEP Teflon / 0.6 seconds to converter; 6.1 seconds from converter to analyzer. 360 n/a n/a n/a 12.8 meters, horizontal, inlet well above three tops n/a n/a Arizona State Route 77 runs north - south 0.5 kilometers to the east, providing six lanes of heavily used arterial routing with a 2008 ADT of 43,000. River Road runs east – west 0.5 kilometers to the north, with a 2010 ADT of 38,000. Yes Comments: The site began monitoring for reactive oxides of nitrogen in October, 2010 for the NCore site requirements, using a Thermo 42i-y instrument with remote converter mounted at the requisite 10 meters (see photo, mast left). 42 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name CHILDREN’S PARK NCore Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 1-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height SULFUR DIOXIDE Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E 560 1 42401/ 1 NAAQS comparison / Comply with NCore requirements Population Exposure Thermo Scientific / 43i - TLE FEM PDEQ / PDEQ n/a SLAMS NCore neighborhood 8692 0 0 Continuous 4.25 meters above the ground on a shelter located in a city water well site FEP Teflon / 12.1 seconds 360 n/a n/a n/a 14.0 meters n/a n/a Arizona State Route 77 runs north - south 0.5 kilometers to the east, providing six lanes of heavily used arterial routing with a 2008 ADT of 43,000. River Road runs east – west 0.5 kilometers to the north, with a 2010 ADT of 38,000. Yes Comments: Sulfur Dioxide sampling began October 1, 2010 to conform to NCore site requirements. 43 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name CHILDREN’S PARK NCore Pollutant Method Code Number of monitors Parameter code / POC Basic monitoring objective/ Statement of Purpose Site Type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical Lab Monitor type Scale Number of daily observations Number / Dates of rolling three month average standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow LEAD Primary Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E 110 2 14129/ 1 NAAQS comparison / Comply with NCore requirements Population exposure ICAP Spectra (ICP-MS) n/a PDEQ/ PDEQ Pima County wastewater treatment Proposed NCore Neighborhood 59 0 0 Every six days 2.0 meters 300, from 270 to 210, includes predominant wind direction from 135 (SE) n/a n/a n/a 8.4 meters n/a 2.3 m / 12 days/ Tisch Hi –Vol Plus Arizona State Route 77 runs north - south 0.5 kilometers to the east, providing six lanes of heavily used arterial routing with a 2008 ADT of 43,000. River Road runs east – west 0.5 kilometers to the north, with a 2010 ADT of 38,000. Yes Comments: Lead sampling began February 27, 2012. 44 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name CHILDREN’S PARK NCore Pollutant Method Code Number of monitors Parameter code / POC Basic monitoring objective/ Statement of Purpose Site Type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical Lab Monitor type Scale Number of daily observations Number / Dates of rolling three month average standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow LEAD Collocated Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E 110 2 14129 (POC 2 as of March, 2014) Collocated monitor / Comply with NCore requirements Population exposure Tisch Hi –Vol Plus n/a PDEQ/ PDEQ Pima County wastewater treatment Proposed NCore Neighborhood 27 0 0 Every 12 days 2.0 m 290, from 270 to 200, includes predominant wind direction from 135 (SE) n/a n/a n/a 6.6 meters n/a 2.3 m / 12 days/ Tisch Hi –Vol Plus Arizona State Route 77 runs north - south 0.5 kilometers to the east, providing six lanes of heavily used arterial routing with a 2008 ADT of 43,000. River Road runs east – west 0.5 kilometers to the north, with a 2010 ADT of 38,000. Yes Comments: Lead sampling began February 27, 2012. 45 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name CHILDREN’S PARK NCore Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors / Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT METEOROLOGICAL DATA 061, 040, 011 4 61103, 61104, 62101, 62201 Research support / Source determination for criteria pollutants Site meets 40 CFR 58, Appx. A,C,D,E YES n/a WD/WS –MET ONE 50.5; Temp/RH – VAISALA HMP45 n/a PDEQ, PDEQ n/a n/a n/a 366 n/a n/a continuous WD/WS – 10m ; Temp/RH – 4.25m 360 n/a n/a n/a WD/WS – 16.5m ; Temp/RH – 12.8m n/a n/a Arizona State Route 77 runs north - south 0.5 kilometers to the east, providing six lanes of heavily used arterial routing with a 2008 ADT of 43,000. River Road runs east – west 0.5 kilometers to the north, with a 2010 ADT of 38,000. 46 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw GREEN VALLEY: AQS # 040191030 Site Description Site Name GREEN VALLEY AQS ID Address Latitude / Longitude Elevation Surrounding landscape Location description 040191030 601 N. La Canada Drive, Green Valley, AZ 31.87952 / -110.996440 2910 Dirt, sparse desert vegetation This site is situated in a residential / commercial area. Open pit copper mines and tailings ponds are located four kilometers to the west of the community. 47 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors / Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E GREEN VALLEY PM 10 079 1 81102/1 NAAQS comparison / Provide air pollution data to the public in a timely matter Population Exposure Thermo Scientific TEOM 1400AB FEM PDEQ / PDEQ n/a Special Purpose Neighborhood 363 One exceedance on April 9, 2014. 0 Every day; hourly 4.25 meters above the ground of the Pima County Government Center. 360 n/a n/a n/a 7.0 meters n/a n/a 100 meters west of La Canada with a 2010 ADT of 11,000 0.5 kilometers west of Interstate 19 with a 2011 ADT of 31,000 Yes Comments: This site is fifty kilometers south of Downtown Tucson in the retirement community of Green Valley. PM 10 monitoring commenced in September 1989 at the established TSP site there. ASARCO and Freeport-McMoRan operate several open pit mines and tailings ponds just west of the community. The monitoring objective is to monitor the population exposure to this potentially significant source of airborne particulates. The monitor was relocated in February 2001, approximately 1 kilometer north of the original Esperanza site, to the Pima County Government Center at 601 N. La Canada Drive. The new site is considered a continuation of the original site. PM 10 levels were below the health standards in the years 1989 through 2012. In 2013, there was one exceedance that may be considered as an Exceptional Event dependant on approval from EPA. 48 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2012 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors / Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Suitable for comparison to PM 2.5 NAAQS Site meets 40 CFR 58, Appx. A,C,D,E GREEN VALLEY PM 2.5 733 1 88501/3 Provide air pollution data to the public in a timely matter / Population Exposure Population Exposure Met-One Beta Attenuation 1020 other PDEQ / PDEQ n/a Special Purpose Neighborhood 358 0 0 Continuous 4.8 meters above the ground on a shelter 360 n/a n/a n/a 7.5 meters n/a n/a 100 meters west of La Canada with a 2010 ADT of 11,000 0.5 kilometers west of Interstate 19 with a 2011 ADT of 31,000 No Yes Comments: This site is fifty kilometers south of Downtown Tucson in the retirement community of Green Valley. This monitor was initially installed in May of 2000 as part of the Environmental Monitoring for Public Access and Community Tracking (EMPACT) program. Pima County began reporting the PM 2.5 data to EPA July, 2003. 49 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 8-hour standard exceedances in 2012 Historical exceedances Current Sampling frequency / Season Probe height Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E GREEN VALLEY OZONE 047 1 44201/1 NAAQS comparison / Provide air pollution data to the public in a timely matter Population Exposure Thermo Scientific / 49c FEM PDEQ / PDEQ n/a Special Purpose Neighborhood 362 0 0 Continuous 3.1 meters above the ground on a shelter FEP Teflon / 7.95 seconds 360 n/a n/a n/a 8.0 meters n/a n/a 100 meters west of La Canada with a 2010 ADT of 11,000 0.5 kilometers west of Interstate 19 with a 2011 ADT of 31,000 Yes Comments: This site is fifty kilometers south of Downtown Tucson in the retirement community of Green Valley. This site was initially established in April of 2002 as part of the Environmental Monitoring for Public Access and Community Tracking (EMPACT) program. Pima County began reporting the ozone data to EPA July, 2003. 50 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw CORONA de TUCSON: AQS # 040190008 Site Description Site Name CORONA de TUCSON AQS ID Address Latitude / Longitude Elevation Surrounding landscape Location description 040190008 22001 S. Houghton Road, Tucson, AZ 32.00474 / -110.79260 3078 Gravel within enclosure; dirt, sparse desert vegetation surrounding This site is situated in an undisturbed natural desert area. 51 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name CORONA de TUCSON Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer/Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2012 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E PM 10 126 1 81102/ 1 NAAQS comparison / Upwind Background Upwind Background R&P 2000 FRM PDEQ / PDEQ PDEQ SLAMS Regional 60 0 0 Every sixth day 2.1 meters 360 n/a n/a n/a 23.4 meters n/a n/a 1.6 kilometers west of Houghton Road with a 2010 ADT of 9,000. Yes Comments: This site is the only regional scale monitor in the network. PM 10 sampling was started here in September 1988, in conjunction with existing total suspended particulates (TSP) sampling. This site exhibits the lowest network concentrations. TSP sampling was discontinued in May 1989. Hi - Vol sampling for PM 10 was substituted with dichotomous sampling during the last quarter of 1989 in support of the state sponsored Tucson PM 10 Source Apportionment Study. Hi - Vol PM 10 sampling resumed in January 1990. Low -Vol PM 10 R& P 2000 sampling began in March, 2006. 52 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw ORANGE GROVE: AQS # 040190011 Site Description Site Name ORANGE GROVE AQS ID Address Latitude / Longitude Elevation Surrounding landscape Location description 040190011 3401 W. Orange Grove Road, Tucson, AZ 32.32255 / -111.037700 2234 Gravel in fenced compound, dirt road shoulders This site is situated in a residential area with light commerce and industry. There is an asphalt batch plant and redi-mix concrete operations with a large gravel pit less than three kilometers to the west of the site in the Santa Cruz River bed area. 53 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name ORANGE GROVE Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer/Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2012 Historical exceedances PM 10 Primary 127 2 81102/ 2 NAAQS Comparison / Highest Concentration Current Sampling frequency / Season The sampling frequency started out with every other day sampling. It was changed to daily after the exceedance in July 1985. The sampling frequency remained as daily until the end of 1986. Every other day sampling was resumed until the two exceedances were recorded in the fourth quarter 1988. Every day sampling was immediately initiated and continued until April 1991 when every other day sampling was resumed. The site was placed on every sixth day sampling in October 1993. The exceedances of the NAAQS in 1999 commenced everyday sampling on September 9, 1999. Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors / Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT 2.65 meters above the ground in a city water well site 360 n/a Site meets 40 CFR 58, Appx. A,C,D,E Highest Concentration R&P 2025 Sequential FRM PDEQ /PDEQ PDEQ SLAMS Neighborhood 365 0 Exceedances of the 24 – hour standard: two in 1988, four in 1999, one in 2002, one in 2003, one in 2009 n/a n/a 19.2 meters n/a 1.2 meters /Every day ; reported every 6th day/ R& P 2025 Sequential 37 meters west of Camino de la Tierra and 70 meters south of Orange Grove Road with a 2010 ADT of 37,000 2 kilometers east of Interstate 10 with a 2011 ADT of 103,000 Yes 54 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Comments: Established in February 1985, this site is the oldest of the PM 10 monitoring sites in the network. Orange Grove was chosen as the initial PM 10 monitoring site and the design value site for Group II in the Tucson air planning area based on historically high TSP data. This neighborhood scale site is located near the confluence of the Santa Cruz, Rillito, and Canada del Oro Rivers in the Tucson Valley. This site is situated near the freeway and railway tracks, and in the vicinity of major construction projects, therefore high PM 10 values are expected here. Dichotomous sampling was started at this site in July of 1993. The dichotomous ran in co-location with a HI-VOL- SA/1200 model from 1993 to 1996. The site was converted to dichotomous only operations on October 1, 1996 continuing until December 1998. HiVol sampling resumed in January 1999, but was replaced with co-located low volume sequential samplers in 2004. Site Name ORANGE GROVE Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer/Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors / Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT PM 10 Collocated 127 2 81102 (POC 4 as of March, 2014) Collocation information Site meets 40 CFR 58, Appx. A,C,D,E Highest Concentration R&P 2025 Sequential FRM PDEQ /PDEQ PDEQ SLAMS Neighborhood 350 0 One in 2002; one in 2009 Every 6th day 2.65 meters above the ground in a city water well site 360 n/a n/a n/a 19.2 meters n/a 1.2 meters /Every day ; reported every 6th day/ R& P 2025 Sequential 37 meters west of Camino de la Tierra and 70 meters south of Orange Grove Road with a 2010 ADT of 37,000 2 kilometers east of Interstate 10 with a 2011 ADT of 103,000 Yes 55 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2012 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors / Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Suitable for comparison to PM 2.5 NAAQS Site meets 40 CFR 58, Appx. A,C,D,E ORANGE GROVE PM 2.5 118 1 88101/ 1 NAAQS Comparison / Highest expected concentration Population Exposure R&P Partisol-Plus 2025 FRM PDEQ / PDEQ PDEQ SLAMS Neighborhood 122 0 0 Every three days sampling 2.65 meters above the ground in a city water well site 360 n/a n/a n/a 20.3 meters n/a n/a 37 meters west of Camino de la Tierra and 70 meters south of Orange Grove Road with a 2010 ADT of 37,000 2 kilometers east of Interstate 10 with a 2011 ADT of 103,000 Yes Yes Comments: PM 2.5 sampling began at this neighborhood scale site in January, 1999. It is located near the confluence of the Santa Cruz, Rillito and Canada del Oro Rivers in the Tucson Valley, toward the northwest end of the air planning area. The site is situated near a freeway and railroad tracks. 56 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw SOUTH TUCSON: AQS # 040191001 Site Description Site Name SOUTH TUCSON AQS ID Address Latitude / Longitude Elevation Surrounding landscape 040191001 1601 S. 6th Avenue, South Tucson, AZ 32.20195 / -110.967900 2420 Primarily paved parking lots; gravel and desert landscaping surrounding building. This site is situated in a dense residential / commercial area. There are numerous unpaved alleys and lots in the vicinity. Location description Comments: From January 1985 to September 1988 this site approached or exceeded TSP standards. PM 10 sampling began here in September 1988. On March 8, 1993, the samplers were relocated from the original site to the new South Tucson Governmental Complex, which is less than two blocks north and across S. 6th Avenue. Levels at this location are representative of area - wide emissions patterns with high population exposure. The annual means for 1989 through 1999 were below the health standard. The 24 hour NAAQS was exceeded twice in 1999 and 2002. Two co-located PM 10 samplers have been operational at this site from June 1991 to June 1999. Co-location of the PM 10 samplers was discontinued when a third sampler was added and everyday sampling began on June 23, 1999. In March, 2004, the Hi Vol samplers were replaced with co-located Low –Vol sequential samplers. 57 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E SOUTH TUCSON PM 10 Primary 127 2 81102 /1 NAAQS Comparison / Population Exposure Population Exposure R&P 2025 Sequential FRM PDEQ/ PDEQ PDEQ SLAMS Neighborhood 362 Two exceedances: April 8th and April 9th Exceedances of the 24 – hour standard: two in 1999; two in 2002; one in 2009; two in 2013 The exceedances of the NAAQS in 1999 commenced everyday sampling on June 23, 1999. 6.9 meters above the ground on the roof of the South Tucson Governmental Complex Building. 360 n/a n/a n/a 6.7 meters n/a 1.7 meters/ Every day; reported every 6th day/ R&P 2025 Sequential 41 meters east of South 6th Avenue with a 2010 ADT of 15,000 528 meters south of 22nd Street with a 2010 ADT of 32,000 Yes 58 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E SOUTH TUCSON PM 10 Collocated 127 2 81102 (POC 2 as of March, 2014) Collocation sampling information Population Exposure R&P 2025 Sequential FRM PDEQ/ PDEQ PDEQ SLAMS Neighborhood 354 One exceedance: April 9th One in 1999; one in 2013 Every 6th day 6.9 meters above the ground on the roof of the South Tucson Governmental Complex Building. 360 n/a n/a n/a 6.7 meters n/a 1.7 meters/ Every day; reported every 6th day/ R&P 2025 Sequential 41 meters east of South 6th Avenue with a 2010 ADT of 15,000 528 meters south of 22nd Street with a 2010 ADT of 32,000 Yes 59 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw PRINCE ROAD: AQS # 040191009 Site Description Site Name PRINCE ROAD AQS ID Address Latitude / Longitude Elevation Surrounding landscape 040191009 1016 W. Prince Road, Tucson, AZ 32.272300 / -110.989100 2315 Primarily paved parking lots, buildings and streets surrounding building. This site is situated in a dense residential / commercial area. Numerous unpaved alleys and lots are in the vicinity, from about 70 to 250 meters away from the sampler. Location description 60 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2012 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors / Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E PRINCE ROAD PM 10 126 1 81102/ 1 NAAQS Comparison / Source Impact Source Impact R&P 2000 FRM PDEQ / PDEQ PDEQ SLAMS Microscale 61 0 0 Every sixth day 4.6 meters above the ground on the roof of a small commercial building. 360 n/a n/a n/a 19.8 meters n/a n/a 14.1 meters north of Prince Road with a 2010 ADT of 23,000 Yes Comments: This site is located in a homogenous, dense, residential / commercial area in north central Tucson. PM 10 sampling began here in August 1987. The microscale site is representative in the north central region of the air planning area where particulate levels are generally higher due to the low altitude and the prevailing southeasterly winds. The annual standard was exceeded in 1989. Power problems within the building resulted in an unusually low data recovery during the fourth quarter of 1990. Data recovery was again compromised by power problems in the 1st and 3rd quarters of 1997 and by damage to the sampler due to a storm in July, 2005. In March, 2006, the Hi -Vol sampler was replaced with a Low – Vol PM 10 R& P 2000 sampler. 61 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw SANTA CLARA SCHOOL: AQS# 040191026 Site Description Site Name SANTA CLARA SCHOOL AQS ID Address Latitude / Longitude Elevation Surrounding landscape Location description 040191026 6910 S. Santa Clara Avenue, Tucson, AZ 32.125950 / -110.982600 2540 Large flat roof, paved parking lots and streets, grass playground. This site is situated in a Southwest Tucson residential district. Comments: This site is located south of Interstate 10 and east of Interstate 19 and provides a representative neighborhood scale site on Tucson’s south side. Being near the fringe of the city limits, this site should track transport values that develop with a southerly wind from a combination of desert, agricultural land, and silt flood plain that is found on the Tohono O’Odham Indian Reservation (San Xavier district) 500 meters south of the site. The Hi- Vol sampler was replaced in April, 2006, with a Low- Vol sampler. 62 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors / Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E SANTA CLARA SCHOOL PM 10 126 1 81102 /1 NAAQS Comparison / Population Exposure Population Exposure R&P 2000 FRM PDEQ/ PDEQ PDEQ Special Purpose Neighborhood 60 0 Exceedances of the 24 – hour standard: One on 10/27/2008 Every sixth day 6.45 meters above the ground on the roof of the Santa Clara Elementary School. 360 n/a n/a n/a 23.9 meters n/a n/a 450 meters east of Interstate 19 with a 2011 ADT of 37,000 800 meters south of Valencia Road with a 2010 ADT of 53,000 Yes 63 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw TANGERINE: AQS # 040191018 Site Description Site Name TANGERINE AQS ID Address Latitude / Longitude Elevation Surrounding landscape 040191018 12101 N. Camino de Oeste, Tucson, AZ 32.425250 / -111.063500 2638 Dirt, sparse desert vegetation to the east; high density, tri –level multi – unit apartments directly west of station. This site has been situated in a relatively undisturbed natural desert area for most of it’s existence, but residential development in recent years have been built to within 35 meters to the west, and low density residential developments are encroaching from the south, east and north to within 3 kilometers to 5 kilometers. Location description . 64 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2012 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors / schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E TANGERINE PM 10 126 1 81102/ 1 NAAQS Comparison / General Background * General Background R&P 2000 FRM PDEQ/ PDEQ PDEQ Special Purpose Urban 60 0 0 Every sixth day 4.5 meters above the ground on a shelter on Tucson’s far northwest side 360 n/a n/a n/a 6.4 meters n/a n/a Tangerine Road runs approximately east – west 70 meters south of the site with a 2011 ADT of 5,000 Yes * See comment on page 3, PDEQ’s anticipated modifications to network in 2013 Comments: The primary objective of this site is to assess background concentrations and to assess transport impact from outlying sources during exceptional wind events. As part of the urban haze/ visibility study, dichotomous samplers were installed at this site in July 1993. PM 10 data from these samplers was used to supplement the existing PM 10 network from October 1996 to December 1998, when the dichotomous samplers were relocated and a Hi-Vol sampler was installed to continue PM 10 monitoring. In 2005, the Hi-Vol PM 10 sampler was replaced with a Low –Vol R& P 2000 sampler. 65 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 8-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E TANGERINE OZONE 047 1 44201 / 1 NAAQS comparison / Highest Concentration * Highest Concentration Thermo Scientific / 49c FEM PDEQ/ PDEQ n/a Special Purpose Urban 365 0 One in 2002; One in 2009 Continuous 3.75 meters above the ground on a shelter on Tucson’s far northwest side. FEP Teflon / 8.5 seconds 360 n/a n/a n/a 8.3 meters n/a n/a Tangerine Road runs approximately east – west 70 meters south of the site with a 2011 ADT of 5,000 Yes * See comment on page 3, PDEQ’s anticipated modifications to network in 2014 Comments: Tangerine was established in November 1989. Ozone concentrations at this site have been the highest in the network on occasion. This may be due to the prevailing southeasterly winds transporting ozone from the urban area. Concentrations remain high well into the night and early morning. 66 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw GERONIMO: AQS # 040191113 Site Description Site Name GERONIMO AQS ID Address Latitude / Longitude Elevation Surrounding landscape Location description 040191113 2498 N. Geronimo Tucson, AZ 32.251840 / -110.965300 2398 Dirt, dead shrubs, unpaved road shoulders This site is situated in a residential area in a City of Tucson water well site. 67 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E GERONIMO PM 10 122 1 81102 / 1 NAAQS Comparison / Provide air pollution data to the public in a timely matter Population Exposure Met One BAM 1020 FEM PDEQ / PDEQ n/a Special Purpose Neighborhood 350 One exceedance April 9th One on 7/22/2009; one on 04/09/2013 Every day; Hourly 4.6m 360 n/a n/a n/a 9.3 meters n/a n/a 154.8 meters north of Grant Road with a 2010 ADT 40,000 617.6 meters east of Stone Avenue with a 2010 ADT 21,000 397.5 meters west of North 1st Avenue with a 2011 ADT 34,000 Yes Comments: This monitor was initially installed in July 1, 2007 for Air Quality Index reporting using a continuous monitor. This is a Special Purpose site situated in a residential area, monitoring for population exposure. There was one exceedance on April 9, 2013 that may be considered as an Exceptional Event dependant on approval from EPA. 68 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT GERONIMO PM 2.5 733 1 88501 /3 Provide air pollution data to the public in a timely matter / Population Exposure Population Exposure Met-One Beta Attenuation 1020 other PDEQ/ PDEQ n/a Special Purpose Neighborhood 333 0 0 Continuous 4.6 meters 360 n/a n/a n/a 9.4 meters n/a n/a 154.8 meters north of Grant Road with a 2010 ADT 40,000 617.6 meters east of Stone Avenue with a 2010 ADT 21,000 Suitable for comparison to PM 2.5 NAAQS Site meets 40 CFR 58, Appx. A,C,D,E 397.5 meters west of North 1st Avenue with a 2011 ADT 34,000 No Yes Comments: This monitor was initially installed in July of 2001 for Air Quality Index reporting using a continuous monitor. Pima County began reporting the PM 2.5 data to EPA July, 2003. This is a Special Purpose site situated in a residential area, monitoring for population exposure. 69 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw ROSE ELEMENTARY: AQS # 040191032 Site Description Site Name ROSE ELEMENTARY AQS ID Address Latitude / Longitude Elevation Surrounding landscape Location description 040191032 710 W. Michigan, Tucson, AZ 32.173 / -110.980115 2438 Grass playground The site is located in a residential neighborhood with light commercial enterprises. The Santa Cruz River, with several sand and gravel operations, parallels the interstate one kilometer to the west. 70 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Suitable for comparison to PM 2.5 NAAQS Site meets 40 CFR 58, Appx. A,C,D,E ROSE ELEMENTARY PM 2.5 733 1 88501 /3 Provide air pollution data to the public in a timely matter / Population Exposure Population Exposure Met-One Beta Attenuation 1020 other PDEQ / PDEQ n/a Special Purpose Neighborhood 346 0 0 Continuous 4.9 meters above the ground on the roof of a shelter located on the grounds of Rose Elementary School 360 n/a n/a n/a 11.8 meters n/a n/a 12th Avenue 235 meters to the east with a 2011 ADT of 22,000 Ajo Way 528 meters to the north with a 2010 ADT of 28, 000 Interstate 19 runs north-south half a kilometer to the west with a 2011 ADT 82,000 No Yes Comments: This monitor was initially installed in October of 2000 as part of the Environmental Monitoring for Public Access and Community Tracking (EMPACT) program. This area was identified as having higher than normal number of pediatric asthma cases. Pima County began reporting the PM 2.5 data to EPA July, 2003. 71 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name ROSE ELEMENTARY Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 8-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height OZONE Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E 047 1 44201/ 1 NAAQS comparison / Provide air pollution data to the public in a timely matter Population Exposure Thermo Scientific / 49i FEM PDEQ/PDEQ n/a Special Purpose Neighborhood 361 0 0 Continuous 4.1 meters above the ground on the roof of a shelter located on the grounds of Rose Elementary School. FEP Teflon / 9.5 seconds 360 n/a n/a n/a 9.4 meters n/a n/a 12th Avenue 235 meters to the east with a 2011 ADT of 22,000 Ajo Way 528 meters to the north with a 2010 ADT of 28, 000 Interstate 19 runs north-south half a kilometer to the west with a 2011 ADT 82,000 Yes Comments: This site was initially established in October of 2000 as part of the Environmental Monitoring for Public Access and Community Tracking (EMPACT) program. This area was identified as having higher than normal number of pediatric asthma cases. Pima County began reporting the ozone data to EPA July, 2003. 72 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw COACHLINE: AQS # 040191034 Site Description Site Name COACHLINE AQS ID Address Latitude / Longitude Elevation Surrounding landscape Location description 040191034 9597 N. Coachline, Tucson, AZ 32.380820 / -111.127160 2104 Dirt within walled compound, residential neighborhood The site is situated in a residential neighborhood. The normally dry Santa Cruz River runs northwest between the Interstate and the neighborhood and contributes to airborne dust through previous deposition of fine clay soils throughout the floodplain. This area has previously been used for farming and ranching, and sand and gravel operations are still in operation five to ten kilometers upstream to the southwest. Considerable new construction of roads, homes and businesses throughout this burgeoning area exacerbate entrainment of the fine soils. 73 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 24-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Suitable for comparison to PM 2.5 NAAQS Site meets 40 CFR 58, Appx. A,C,D,E COACHLINE PM 2.5 733 1 88501/ 3 Provide air pollution data to the public in a timely matter / Population Exposure Population Exposure Met-One Beta Attenuation 1020 Other PDEQ / PDEQ n/a Special Purpose Neighborhood 344 0 0 Continuous 4.9 meters above the ground on a shelter on Tucson’s far northwest side 270, from 260 to 170, includes predominant wind direction from 135 (SE) n/a n/a 9.41 meters 5.0 meters n/a n/a approximately 1.25 kilometers west of Interstate 10 with a 2011 ADT of 75,000 .5 kilometer north of Silverbell Road 2010 ADT of 26,000 No Yes Comments: This monitor was initially installed in March of 2001 as part of the Environmental Monitoring for Public Access and Community Tracking (EMPACT) program. This area was identified as having higher than normal number of pediatric asthma cases. Pima County began reporting the PM 2.5 data to EPA July, 2003. 74 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer/Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 8-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E COACHLINE OZONE 047 1 44201 / 1 NAAQS comparison / Provide air pollution data to the public in a timely matter Population Exposure Instrumental ultra violet radiation absorption FEM PDEQ / PDEQ n/a Special Purpose Neighborhood 365 0 0 Continuous 3.1 meters above the ground on a shelter on Tucson’s far northwest side FEP Teflon / 9.3 seconds 290, from 250 to 170, includes predominant wind direction from 135 (SE) n/a n/a n/a 5.3 meters n/a n/a approximately 1.25 kilometers west of Interstate 10 with a 2011 ADT of 75,000 .5 kilometer north of Silverbell Road 2010 ADT of 26,000 Yes Comments: This site was initially established in April of 2001 as part of the Environmental Monitoring for Public Access and Community Tracking (EMPACT) program. This area was identified as having higher than normal number of pediatric asthma cases. Pima County began reporting the ozone data to EPA July, 2003. 75 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw 22ND STREET & CRAYCROFT: AQS # 040191011 Site Description ND Site Name 22 STREET & CRAYCROFT AQS ID Address Latitude / Longitude Elevation Surrounding landscape Location description 040191011/ 1 1237 S. Beverly Avenue, Tucson, AZ 32.204420 / -110.878067 2582 Dirt, ephemeral weeds This site is situated in a predominately residential eastside area with commercial activity lining nearby arterial routes. There is a large covered water reservoir north of the location. 76 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of hourly observations Number / Dates of standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E 22ND STREET & CRAYCROFT CARBON MONOXIDE 158 1 42101 /1 NAAQS comparison / Population Exposure Population Exposure Horiba / APMA370 FRM PDEQ / PDEQ n/a SLAMS Neighborhood 8701 0 0 Continuous 4.1 meters above the ground on the roof of a shelter located in a city water well site. FEP Teflon / 5.3 seconds 360 n/a n/a n/a 22.0 meters n/a n/a 260 meters west is Craycroft Road with a 2010 ADT of 30,000 260 meters north is 22nd Street with a 2011 ADT of 49,000 Yes Comments: This site is one of the oldest in the monitoring network, originally established in 1973, and has operated continuously to the present. 77 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 8-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E 22ND STREET & CRAYCROFT OZONE 047 1 44201 /1 NAAQS comparison / Maintenance of long term monitoring at this location Population Exposure Thermo Scientific / 49i FEM PDEQ / PDEQ n/a SLAMS Neighborhood 365 0 One in 1997, 1999, 2002, 2011 Continuous 4.1 meters above the ground on the roof of a shelter located in a city water well site. FEP Teflon / 8.1 seconds 360 n/a n/a n/a 22.0 meters n/a n/a 260 meters west is Craycroft Road with a 2010 ADT of 30,000 260 meters north is 22nd Street with a 2011 ADT of 49,000 Yes Comments: This site is one of the oldest in the monitoring network, originally established in 1973, and operated continuously to the present. 78 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of hourly observations Number / Dates of standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E 22ND STREET & CRAYCROFT NITROGEN DIOXIDE 157 1 42602 /1 NAAQS comparison / Maintenance of long term monitoring at this location Population Exposure Horiba / APNA -370 FRM PDEQ / PDEQ n/a SLAMS Neighborhood 8670 0 0 Continuous 4.1 meters above the ground on the roof of a shelter located in a city water well site FEP Teflon / 7.5 seconds 360 n/a n/a n/a 22.0 meters n/a n/a 260 meters west is Craycroft Road with a 2010 ADT of 30,000 260 meters north is 22nd Street with a 2011 ADT of 49,000 Yes Comments: This site is one of the oldest in the monitoring network, originally established in 1973, and operated continuously to the present. 79 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw 22ND STREET & ALVERNON: AQS # 040191014 Site Description Site Name 22ND STREET & ALVERNON AQS ID Address Latitude / Longitude Elevation Surrounding landscape Location description 040191014 3895 E. 22nd Street, Tucson, AZ 32.207390 / -110.910650 2516 Gravel in walled compound, paved streets and sidewalks This site is situated in a commercial area near a high traffic count intersection. A large regional park is located to the northwest of the site. 80 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of hourly observations Number / Dates of standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type 22ND STREET & ALVERNON CARBON MONOXIDE 174 1 42101 / 1 NAAQS comparison / Highest Concentration Highest Concentration Ecotech / Serinus 30 FRM PDEQ / PDEQ n/a SLAMS Microscale 8490 0 Years: 1975 - 1986 and 1988 Continuous 3.4 meters above the ground attached to a wall near 22nd Street at a Tucson Water well site FEP Teflon / 24.4 seconds 225, from 5 to 230, includes predominant wind direction from 135 (SE; directly from intersection of 22nd St. and Alvernon Way). n/a n/a 2.0 meters 3.0 meters n/a n/a Nearest roads distance & direction to monitor / ADT 60 meters west of Alvernon Way with a 2010 ADT of 33,000 Site meets 40 CFR 58, Appx. A,C,D,E Yes 10 meters north of 22nd Street with a 2010 ADT of 38,000 Comments: The site was relocated in October, 2001 to a Tucson Water well site 50 meters west of the original location. The move was necessitated by an intersection improvement project and anticipated construction on the northwest corner. The shelter was moved again in January, 2004, to a different corner within the well site, and the probe was attached to a wall in virtually the same location as before the shelter was moved, so airflow from the intersection would remain unrestricted. 22nd & Alvernon continues to measure the highest CO concentrations in the network. The prevailing morning- hour southeasterly winds usually disperse CO generated in the intersection. During stagnant conditions, especially during the winter inversion formation, CO generated in the intersection has a longer residence time. Although population exposure is limited at this location, 22nd & Alvernon is representative of worstcase intersections in Tucson. This site has been operating continuously since 1975. No exceedances of the eight-hour health standard were recorded in 1989 through 2013. 81 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw CHERRY & GLENN: AQS # 040191021 Site Description Site Name CHERRY & GLENN AQS ID Address Latitude / Longitude Elevation Surrounding landscape Location description 040191021 2745 N. Cherry Avenue, Tucson, AZ 32.25658 / -110.948650 2400 Gravel in fenced compound, paved parking lot, streets This site is located in a predominately residential neighborhood, approximately 0.8 km northwest of a high traffic count intersection. Directly south and west of the site is a private High School enrolling approximately 1200 students. 82 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of hourly observations Number / Dates of standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E CHERRY & GLENN CARBON MONOXIDE 054 1 42101 /1 NAAQS comparison / Population Exposure Population Exposure Thermo Scientific / 48c FRM PDEQ/ PDEQ n/a Special Purpose Neighborhood 4334 0 0 Continuous / Seasonal monitor operation from Jan 1- March 31 and Oct.1 – Dec. 31 4.9 meters above the ground on a shelter in a city water well site. FEP Teflon / 5.47 seconds 360 n/a n/a n/a 8.7 meters n/a n/a 0.8 kilometers north of Grant Road with a 2010 ADT of 43,000 0.5 kilometers west of Campbell Avenue with a 2011 ADT of 37,000. Yes Comments: Cherry & Glenn was established as a special purpose site in February 1989, in order to assess the CO levels at a distance (less than 1 kilometer) from a typical high-volume intersection. This site has historically recorded very low levels of CO during the summer months. Consequently, in 2001, seasonal monitoring began with sampling from October through March. 83 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw GOLF LINKS & KOLB: AQS # 040191031 Site Description Site Name GOLF LINKS & KOLB AQS ID Address Latitude / Longitude Elevation Surrounding landscape Location description 040191031 2601 South Kolb Road 32.191180 / -110.840550 2692 Dirt lot and easement, paved street This site is located near the southeast corner of Golf Links and Kolb roads in a City of Tucson water reservoir site. Light commercial enterprises occupy all four corners and separate the intersection from residential neighborhoods. 84 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of hourly observations Number / Dates of standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT GOLF LINKS & KOLB CARBON MONOXIDE 093 1 42101 / 1 NAAQS comparison / Highest Concentration Highest Concentration Thermo Scientific / 48c FRM PDEQ/ PDEQ n/a Special Purpose Microscale 4334 0 0 Continuous / Seasonal Monitor operating Jan. 1- March 31 and Oct. 1 – Dec. 31 3.0 meters above the ground on a pole located next to Kolb road FEP Teflon / 28.96 seconds 360 n/a n/a n/a 2.7 meters n/a n/a 100 meters south of Golf Links, with a 2010 ADT of 40,000 2 meters east of Kolb Road, with a 2009 ADT of 47,000. Site meets 40 CFR 58, Appx. A,C,D,E Yes Comments: Golf Links & Kolb was established as a special purpose site in September 2002, as part of the Carbon Monoxide Limited Maintenance Plan. Inlet placement qualifies it as a microscale site, and sighting it on the southeastern quarter of the intersection provides an opposite wind direction compliment to the 22/Alvernon site. This site is operated seasonally, from October through March. 85 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw SAGUARO PARK EAST: AQS # 040190021 Site Description Site Name SAGUARO PARK EAST AQS ID Address Latitude / Longitude Elevation Surrounding landscape Location description 040190021 3905 South Old Spanish Trail, Tucson, AZ 32.174538 / -110.737116 3089 Natural desert This site is situated in the National Park. The nearby light residential area has no significant local sources of ozone precursors. 86 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name SAGUARO PARK EAST Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 8-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height OZONE Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E 047 1 44201 /1 NAAQS comparison / Highest Concentration Highest Concentration Thermo Scientific / 48c FEM PDEQ/ PDEQ n/a SLAMS Neighborhood 364 0 One in 1999, 2003, 2005, 2008; Three in 2011 Continuous 4.1 meters above the ground in Saguaro National Park East on the roof of a shelter that is one kilometer south of the administration building. FEP Teflon / 6.58 seconds 360 n/a n/a n/a – (trailer was removed) 8.0 meters n/a n/a 80 meters east to Old Spanish Trail with a 2009 ADT of 7,000 105 meters south of Escalante with a 2011 ADT of 3,000 Yes Comments: The Saguaro National Park site has been active since 1982. The operation of the site was taken over by the National Park Service in 1987. The Park Service returned operation of the site to Pima County in 1993. Geographically, Saguaro National Park is on the eastern edge of the Tucson metropolitan area. Ozone data from this site has been used to study how the levels of ozone affect natural vegetation. 87 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw FAIRGROUNDS: AQS # 040191020 Site Description Site Name FAIRGROUNDS AQS ID Address Latitude / Longitude Elevation Surrounding landscape Location description 040191020 11330 S. Houghton Road, Tucson, AZ 32.047680 / -110.774350 3078 Natural desert vegetation on lag gravel This site is situated in an undisturbed natural desert area to the north and east. The Pima County Fairgrounds and drag strip are located directly southwest of the site. 88 PPiim Moonniittoorriinngg mbbiieenntt AAiirr M maa CCoouunnttyy 22001133 AAm N woorrkk PPllaann Neettw Monitoring Information Site Name Pollutant Method code Number of monitors Parameter code / POC Basic monitoring objective / Statement of purpose Site type Instrument Manufacturer / Model FRM/FEM/ARM/other Collecting agency / Reporting agency Analytical lab Monitor type Scale Number of daily observations Number / Dates of 8-hour standard exceedances in 2013 Historical exceedances Current Sampling frequency / Season Probe height Probe material / Residence time Degrees of unrestricted air flow Distance from supporting structure Distance from obstruction on roof Distance from obstruction not on roof Distance from trees Distance to furnace or incinerator flue Distance between collocated monitors/ Schedule / Collocated monitor type Nearest roads distance & direction to monitor / ADT Site meets 40 CFR 58, Appx. A,C,D,E FAIRGROUNDS OZONE 047 1 44201 / 1 NAAQS comparison / Background Background Thermo Scientific / 49i FEM PDEQ/ PDEQ n/a Special Purpose Urban 362 0 One in 2008 and 2011 Continuous 3.6 meters above the ground on a shelter on Tucson’s far southeast side FEP Teflon / 8.64 seconds 360 n/a n/a n/a n/a n/a n/a 53 meters west of Houghton road with a 2010 ADT of 9,000 Yes Comments: Fairgrounds was established in October 1989. Ozone concentrations at this site have been the highest in the network on occasion. This may be due to the afternoon wind shift that takes place almost daily in the Tucson basin. The wind may be transporting urban ozone precursors or stable ozone to the far east end of the Tucson air planning area. 89