San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013



## San Joaquin Valley Air Pollution Control District

Annual Air Monitoring Network Plan

June 25, 2013San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 

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Annual Air Monitoring Network Plan i 

### TABLE OF CONTENTS

The District’s Core Values and the District’s Air M onitoring Network .............................. ii i Executive Summary .................................

................................................... .................... 1 Introduction: Air Monitoring Network Plan requireme nts ............................................... .. 4 Monitoring Objectives and Spatial Scales ..........

................................................... .......... 8 Ozone .............................................

................................................... ............................ 14 Photochemical Assessment Monitoring Stations ......

................................................... .. 17 Particulate Matter (PM) ...........................

................................................... ................... 18 PM10 Monitors in the Valley .......................

................................................... ................ 19 PM2.5 Monitors in the Valley ......................

................................................... ................ 25 PM Collocation Requirements .......................

................................................... ............. 32 Public Review of Changes to the PM2.5 Monitoring Ne twork ....................................... 32
Carbon Monoxide ...................................

................................................... .................... 32 Nitrogen Dioxide ..................................

................................................... ....................... 33 Sulfur Dioxide ....................................

................................................... ......................... 35
Lead ..............................................

................................................... ............................. 36
Toxics ............................................

................................................... ............................. 37 NCore .............................................

................................................... ............................ 37 Meteorology .......................................

................................................... ........................ 37 Summary of Recent Changes to the District’s Air Mon itoring Network .......................... 39 (Period: 2011 through Current) ....................

................................................... .............. 39 Summary of Planned Changes to the District’s Air Mo nitoring Network ........................ 40 (Period: Current through Mid–2014) ................

................................................... ........... 40 Stockton CBSA/MSA .................................

................................................... ................. 40 Modesto CBSA/MSA ..................................

................................................... ................ 40 Merced CBSA/MSA ...................................

................................................... ................. 40 Madera CBSA/MSA....................................

................................................... ................ 40 Fresno CBSA/MSA....................................

................................................... ................. 40 Hanford–Corcoran CBSA/MSA .........................

................................................... ......... 40 Visalia–Porterville CBSA/MSA ......................

................................................... ............. 41 Bakersfield CBSA/MSA ..............................

................................................... ................ 41 Data Submission Requirements ......................

................................................... ........... 41 Acronyms and Abbreviations ........................

................................................... .............. 42

Appendix A: Monitoring Site Descriptions Appendix B: Detailed SJV Monitoring Site Informatio n Appendix C: Bakersfield–Golden AMS Closure and Repl acement Appendix D: NO 2 

### Near–Road Monitoring Station Siting Requirements a nd Selection
Process for the Bakersfield Core Based Statistical Area Appendix E: NO 2 

### Near–Road Monitoring Station Siting Requirements a nd Selection
Process for the Fresno Core Based Statistical Area Appendix F: EPA’s Approval the Fresno–First Air Mon itoring Site Relocation Appendix G: Comments and Responses Appendix H: Notices of PublicationSan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan ii 

### LIST OF FIGURES

Figure 1 Map of Air Monitoring Sites in the San J oaquin Valley .................................... 2

LIST OF TABLES

Table 1 Types of Air Monitoring Stations and Equip ment .............................................. . 4 Table 2 San Joaquin Valley Areas of Representation

.................................................. .. 6 Table 3 Site Identification and AQS AIRS Codes ...

................................................... ..... 6 Table 4 San Joaquin Valley 2012 Population .......

................................................... ....... 8 Table 5 Ambient Air Monitoring Sites in the San Jo aquin Valley Air Basin ................... 10 Table 6 SLAMS Minimum Ozone Monitoring Requirement s ........................................ 14 Table 7 8–Hour Ozone Requirements for the San Joaq uin Valley ............................... 15 Table 8a San Joaquin Valley Ozone SLAMS Monitors . ............................................... 15 Table 8b San Joaquin Valley Ozone SPM Monitors ...

.................................................. 17 Table 9 SJV PAMS Sites (SLAMS) ...................

................................................... ........ 18 Table 10 Minimum PM10 Monitoring Requirements .... ................................................ 20 Table 11 PM10 Monitoring requirements for the Vall ey ................................................ 20 Table 12a San Joaquin Valley PM10 SLAMS monitor in formation ............................... 21 Table 12b San Joaquin Valley PM10 SPM monitor info rmation ................................... 23 Table 13 San Joaquin Valley PM10 monitor types ...

................................................... . 23 Table 14 Minimum PM2.5 Monitoring Requirements.... ................................................ 25 Table 15 PM2.5 Monitoring requirements for the Val ley ............................................... 26 Table 16a San Joaquin Valley PM2.5 SLAMS monitor i nformation .............................. 26 Table 16b San Joaquin Valley PM2.5 SPM monitor inf ormation .................................. 29 Table 17 San Joaquin Valley PM2.5 monitor types ..

................................................... . 30 Table 18 Carbon Monoxide Monitoring Stations in th e San Joaquin Valley ................. 33
Table 19 NO 2 

### Monitoring Stations in the San Joaquin Valley .... ................................... 35 Table 20a Populations Weighted Emissions Index for the San Joaquin Valley ............ 36
Table 20b SO 2 

### Monitoring Station in the San Joaquin Valley ..... .................................. 36 Table 21 Meteorological Parameter Monitoring Stati ons in the San Joaquin Valley .... 38San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan iii



### The District’s Core Values and the District’s Air M onitoring Network

* Protect Public Health * The District uses data collected from the Valley ai r monitoring network to generate daily air quality forecasts and, when needed, issue health advisories . The District also uses data collected from the Valley’s air monitoring network as the basis for lo ng-term attainment strategies and to track progress towards health-based air quality standards.



### * Active and effective air pollution control effort s with minimal disruption to the Valley’s economic prosperity * The District uses air monitoring data to help deter mine what kind of air pollution control efforts are needed to achieve health-based air quality standards.



### * Outstanding Customer Service * * Accountability to the public * The District’s website provides timely and easy pub lic access to data from the Valley’s real-time air monitors. The public can also access summaries of the previous seven days of air quality for ozone an d particulate matter.



### * Open and transparent public processes * In addition to making air quality data available in real-time, the District uses air quality data in a variety of publicly available documents and reports. The Dist rict also conducts a public review period for annua l monitoring network plans.



### * Respect for the opinions and interest of all Vall ey residents * The District has actively made daily air quality in formation available to Valley residents in a variet y of formats, from the District website to the media, an d even with air quality flags at schools. The Dist rict

considers public interests in establishing new air monitoring stations.



### * Ingenuity and innovation * The District uses new and improved air monitoring t echniques as these techniques are approved by the
EPA. The District uses the latest science when sit ing air monitors. In turn, data collected from the

monitoring network contributes to ongoing scientifi c evaluations.



### * Continuous improvement * The District evaluates the air monitoring network i n the annual Monitoring Network plan for opportunit ies for better data collection and greater efficiency. Furthermore, improved air monitoring is a continuo us effort; throughout the year, the District seeks out opportunities to improve the air monitoring networ k.



### * Recognition of the uniqueness of the San Joaquin Valley * The San Joaquin Valley is an expansive and diverse area. The District sites air monitors to represent each type of area and each portion of the region.



### * Effective and efficient use of public funds * An air monitoring network requires personnel, instr uments, parts, energy, and leases. The District ma kes the most of limited resources by structuring the ai r monitoring network in a way that optimizes person nel time and funding for instruments. The result is a robust air monitoring network that helps the Valley reach its air quality goals without unnecessary expenditu res.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

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Annual Air Monitoring Network Plan 1 

### Executive Summary

The San Joaquin Valley Air Pollution Control Distri ct (SJVAPCD or District) operates an extensive network of air quality monitors throughou t the San Joaquin Valley (Valley) to support its mission of improving and protecting pub lic health. On a short term scale, District staff use the hourly readings from real–ti me monitors to communicate the state of the air quality to Valley residents. Through pr ograms and venues such as the Real– time Air Advisory Network (RAAN), the Air Quality F lag program, the District website, and Valley media, Valley residents are able to obta in air quality information that can help them with their activity planning. The Distri ct also uses real–time air quality data to manage prescribed burning, agricultural burning, an d residential wood combustion to ensure these activities do not make air quality unh ealthy.

The Valley’s attainment status for the U.S. Environ mental Protection Agency’s (EPA) health–based air quality standards is the foundatio n of the District’s air quality attainment plans (such as the 2007 Ozone Plan , the 2012 PM2.5 Plan , and upcoming plans). As part of the District’s long–term effor ts to improve public health, air monitors collect data that is rigorously analyzed by laborat ory technicians and District staff. This monitoring data determines the Valley’s air quality and is fundamental in the Valley’s effort to improve air quality and achieve attainmen t of EPA’s health–based standards as quickly as possible.

The San Joaquin Valley covers an area of 23,490 squ are miles, and the area is home to one of the most challenging air quality problems in the nation. The Valley is
nonattainment for federal PM2.5 and ozone standards , and is in attainment of the federal standards for lead (Pb), Nitrogen dioxide ( NO 2 

### ), Sulfur dioxide (SO 2 

### ), and Carbon monoxide (CO). In addition, the Valley is a n attainment/maintenance area for PM10. The Valley is home to approximately 4 millio n residents, and includes several major metropolitan areas, vast expanses of agricult ural land, industrial sources, highways, and schools. This expansive and diverse area comprises many air quality needs, yet there are limited financial and personne l resources for air quality monitoring.

Despite these limitations and challenges, the Distr ict maintains a robust air monitoring program. The District follows federal monitoring r equirements and guidelines to ensure an efficient and effective monitoring network. Add itionally, EPA encourages tribal monitoring. There are two tribal monitors operati ng in the Valley. The Tachi Yokut Tribe operates a monitoring station at Santa Rosa R ancheria located in Kings County, and the Chukchansi Indians of California operate a monitoring station at the Picayune Rancheria located in Madera County.

This monitoring network plan describes the District ’s approach for implementing federal air monitoring and quality control requirements and summarizes recent and upcoming changes to the monitoring network. As specified in 40 CFR 58.10(a), this plan is made available for public inspection at least 30 days pr ior to submission to EPA. This
Network Plan summarizes the state of the District’s air monitoring network during 2012, and through March 2013. Additionally, changes that the District may initiate throughSan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 2 

### June 2014 are described in the Summary of Planned C hanges. A map of the air monitoring stations in the San Joaquin Valley is sh own in Figure 1. Table 5 lists
detailed information about all of the ambient air m onitoring sites in the San Joaquin Valley Air Basin.San Joaquin Valley Unified Air Pollution Control DistrictJune 25, 2013Annual Air Monitoring Network Plan3Figure 1 Map of Air Monitoring Sites in the San Joaquin ValleySan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 4 

### Introduction: Air Monitoring Network Plan requireme nts

As specified in 40 CFR (Code of Federal Regulations ) 58.10, and as part of requirement of the District’s EPA 105 Grant, this air monitorin g network plan describes the current state of the District’s monitoring network and chan ges that are planned for the network. The annual monitoring network plan is updated and s ubmitted to the EPA Regional Administrator each year, and is made available for public inspection for at least 30 days prior to submission to EPA. Air monitoring network plans provide the establishment and maintenance of air monitoring networks that may inc lude the types of stations and equipment listed in Table 1.

Table 1 Types of Air Monitoring Stations and Equip ment
Abbreviation Full Name Description

ARM Approved Regional

Method A method that has been approved within a specific region f or comparison to federal air quality standards. Currently, there are no ARM monitors in the San Joaquin Valley.

FEM Federal Equivalent

Method These monitors are considered to be equivalent to FRM monitors for the purpose of determining compliance with EPA’s health–based air quality
standards.

FRM Federal Reference

Method EPA defines how these monitors are to work, how they are to be engineered, and how they are to measure pollutants. These monitors are used to determine compliance with EPA’s health–based air quality standards.

NCore National Core Multipollutant monitoring stati ons; in California, these are operated by the California Air Resources Board (CARB).

PAMS Photochemical

Assessment Monitoring Station VOC (volatile organic compounds) speciation sites used in serious, severe, or extreme ozone nonattainment areas for precursor evaluation.

SLAMS State and Local Air

Monitoring Station Monitoring sites that are used for determinations o f compliance with federal air quality standards, thou gh they may be used for other purposes as well.

SPM Special Purpose

Monitor Not included when showing compliance with the minimum air monitoring requirements; an example might include a temporary monitoring station set up in an area to measure short term air quality impact s of a source. Data collected from an SPM can be used for Regulatory purposes if the monitor has bee n operational for two years and if the monitor is an ARM, FEM, or FRM.

STN Speciated Trends

Network PM2.5 speciation stations that provide chemical speciation data of PM.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 5 

### The monitoring network plan should include a statem ent of purpose for each monitor and evidence that siting and operation of each moni tor meets the requirements of appendices A, C, D, and E of 40 CFR part 58. The p lan must contain the following information for each existing and proposed site (40 CFR 58.10 (b)):

• The MSA, CBSA, CSA, or other area represented by t he monitor. MSA, CBSA,
and CSA are statistical–based definitions for metro politan areas provided by the Office of Management and Budget and the Census Bure au (see Table 2):

o MSA: Metropolitan statistical area

o CBSA: Core–based statistical area

o CSA: Combined statistical area

• Air quality system (AQS) Aerometric Information Re trieval System (AIRS) Code site identification number (see Table 3).

• Locations: street address and geographical coordin ates (see Appendix B).

• Sampling and analysis methods for each measured pa rameter (see Appendix B).

• Operating schedules for each monitor (see Appendix B).

• Monitoring objective and spatial scale of represen tativeness for each monitor (as defined in Appendix D to 40 CFR 58) (see Appendix B ).

• Any proposals to remove or move a monitoring stati on within 18 months of a plan submittal. Any proposed additions and discontinuat ions of SLAMS monitors are subject to approval according to 40 CFR 58.14 (see Summary of planned changes section below).

• Each air monitor is sited to satisfy at least one of three specific criteria:

o Population (see Table 4)

o A specific geographic scale (see Appendix B)

o Generally consistent pollution concentrations

There are several network plan requirements that pe rtain specifically to PM2.5 monitoring:

• The monitoring network plan must identify which si tes are suitable and which are not suitable for comparison against the annual PM2. 5 national ambient air quality standards (NAAQS) as described in 40 CFR 58.30 (see PM2.5 Monitors in the Valley section below).

• The plan must also document how the District provi des for public review of changes to the PM2.5 monitoring network when the ch ange impacts the location of a violating PM2.5 monitor, or the creation/chang e to a community monitoring

zone.

• The District should submit any public comments rec eived on PM2.5 monitoring changes in the submittal of the network plan.

• On March 18, 2013, EPA finalized the rule to revok e the term “population–
oriented.” The final rule states that PM2.5 monito rs at neighborhood scale or larger, or smaller scales that represent many locat ions in the same CBSA, are the only monitors representative of “area–wide” air quality that can be compared to the PM2.5 NAAQS.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 6



### Table 2 San Joaquin Valley Areas of Representation

TITLE CODE
Metropolitan Statistical Area (MSA) Core–Based Statistical Area (CBSA) Code

Bakersfield 1 12540

Fresno 23420

Hanford–Corcoran 25260

Madera 31460

Merced 32900

Modesto 33700

Stockton–Lodi 44700

Visalia–Porterville 47300

1 Monitors from both the District and the Eastern Ke rn County Air Pollution Control District can be counted when determining compliance wit h minimum monitoring requirements for the Bakersfie ld CBSA. However, only monitors located w ithin the District’s boundaries are included in thi s network plan.



### Table 3 Site Identification and AQS AIRS Codes

MSA/CBSA: Fresno County: Fresno

Site Name AIRS Code Operating Agency
Clovis–Villa 060195001 SJVAPCD
Fresno–Drummond 060190007 SJVAPCD
Fresno–Garland 060190011 CARB
Fresno–Pacific 060195025 SJVAPCD Fresno–Sky Park 060190242 SJVAPCD
Huron 060192008 SJVAPCD
Parlier 060194001 SJVAPCD Tranquillity 060192009 SJVAPCD

MSA/CBSA: Bakersfield County: Kern (Valley Portion)

Site Name AIRS Code Operating Agency Arvin–Di Giorgio 060295002 CARB
Bakersfield–California 060290014 CARB
Bakersfield–Muni 1 060292012 SJVAPCD
Bakersfield–Planz 060290016 CARB
Edison 060290007 CARB
Lebec 060292009 SJVAPCD Maricopa 060290008 SJVAPCD
Oildale 060290232 CARB
Shafter 060296001 Shared 2

MSA/CBSA: Hanford–Corcoran County: Kings
Site Name AIRS Code Operating Agency
Corcoran–Patterson 060310004 SJVAPCD
Hanford–Irwin 060311004 SJVAPCD

1 The Bakersfield–Golden State AMS was closed in Dece mber 2009 and relocated to the Bakersfield– Municipal Airport (Bakersfield–Muni) AMS to serve as a PAMS Type 2 site. See Appendix C for details.

2 Site operated by CARB and SJVAPCD.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 7



### Table 3 Site Identification and AQS AIRS Codes (Continued)

MSA/CBSA: Madera County: Madera

Site Name AIRS Code Operating Agency Madera–City 060392010 SJVAPCD Madera–Pump Yard 060390004 SJVAPCD

MSA/CBSA: Merced County: Merced

Site Name AIRS Code Operating Agency
Merced–Coffee 060470003 SJVAPCD
Merced–M Street 060472510 SJVAPCD

MSA/CBSA: Stockton County: San Joaquin

Site Name AIRS Code Operating Agency
Manteca 060772010 SJVAPCD
Stockton–Hazelton 060771002 CARB Stockton–Wagner/Holt 060773010 SJVAPCD Tracy–Airport 060773005 SJVAPCD

MSA/CBSA: Modesto County: Stanislaus

Site Name AIRS Code Operating Agency
Modesto–14 th Street 060990005 CARB
Turlock 060990006 SJVAPCD

MSA/CBSA: Visalia–Porterville County: Tulare
Site Name AIRS Code Operating Agency
Porterville 061072010 SJVAPCD Sequoia–Ash Mountain 061070009 National Park Servic e Sequoia–Lower Kaweah 061070006 National Park Servic e Visalia–Airport 061073000 SJVAPCD
Visalia–Church 061072002 CARBSan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 8



### Table 4 San Joaquin Valley 2012 Population

County Total

County Population Major Urban Area

Pop > 100,000 Urban Area Pop

< 100,000 and > 50,000

Fresno 945,711 Fresno Clovis

Kern (Entire County) 850,006 Bakersfield Delano

Kern (Valley Portion) 731,005 1 Bakersfield Delano

Kings 152,419 –– Hanford

Madera 152,074 –– Madera

Merced 258,736 –– Merced

San Joaquin 695,750 Stockton Lodi, Manteca, Tracy

Stanislaus 519,940 Modesto Turlock

Tulare 450,840 Visalia Porterville, Tulare

S an Joaquin Valley Total 3,906,475

1 Population estimate for Kern County (Valley Portion ) was calculated using census track data for the population living within the District’s boundarie s. The San Joaquin Valley Total includes the Kern (Valley Portion) population, not the Kern (Entire County) population. Data from California Departme nt of Finance E–1 Population Estimates for Cities, Coun ties and the State, January 1, 2012.



### Monitoring Objectives and Spatial Scales

Appendix D to 40 CFR Part 58 identifies three basic monitoring objectives that define the purpose of each analyzer:

• 

### Provide air pollution data to the general public in a timely manner ( timely/public ).

• 

### Support compliance with ambient air quality standar ds and emissions strategy development ( standards/strategy ).

• 

### Support for air pollution research studies ( research support ). Appendix D then identifies several general monitori ng site types to meet the objectives that define what the monitor is measuring:

• 

### Sites located to determine the highest concentrations in the area covered by the network.

• 

### Population oriented sites to measure typical concentrations in areas o f high population density.

• 

### Source impact sites to determine the impact of significant sourc es or source categories on air quality.

• 

### General/background sites determine background concentration levels.

• 

### Regional transport sites located to determine the extent of regional pollut ant transport among populated areas and in support of s econdary standards

• 

### Sites located to measure air pollution impacts on v isibility, vegetation damage, or other welfare–related impacts.

Appendix D also identifies several scales of spatia l representativeness, described in terms of physical dimensions of the air parcel or z one where air quality is expected toSan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 9 

### be reasonably consistent around the monitor. The m onitor thus represents that area, not just the point of the monitor. The spatial scales are:

• 

### Microscale : An area ranging from several meters up to about 100 meters.

• 

### Middle scale : An area covering between about 100 meters to 0.5 kilometers.

• 

### Neighborhood scale : Covering an area between 0.5 and 4.0 kilometers i n
range.

• 

### Urban scale : Covering an area of city–like dimensions, from ab out 4 to 50
kilometers.

• 

### Regional scale : Covering a rural area of reasonably homogeneous geography without large sources, extending from ten s to hundreds of
kilometers.

• 

### National and global scales : Representing concentrations characterizing the nation and the globe as a whole.

New monitoring stations and new monitors that are i ntended to be compared to the NAAQS must meet EPA siting criteria. A particular site might be appropriate for one or more pollutants. Some sites may be appropriate for all air pollutant monitoring, while other sites are only appropriate for a particular p ollutant. The District balances a wide range of pollutant siting criteria, spatial scales, monitoring objectives, and practical concerns as it plans and operates its monitoring ne twork.

This Network Plan summarizes the state of the Distr ict’s air monitoring network during 2012, and through March 2013. Additionally, change s that the District may initiate through June 2014 are described in the Summary of P lanned Changes. Table 5 lists
detailed information about all of the ambient air m onitoring sites in the San Joaquin Valley Air Basin.San Joaquin Valley Unified Air Pollution Control DistrictJune 25, 2013Annual Air Monitoring Network Plan10Table 5 Ambient Air Monitoring Sites in the San Joaquin Valley Air BasinMSA, CountySite NameAddressParameters MonitoredArvin–Di Giorgio19405 Buena VistaBlvd, Arvin, CA 93203OzoneBakersfield–Planz401 E. Planz Rd.,Bakersfield CA 93307PM2.5 FRMBakersfield–Muni12000 South Union Ave.,Bakersfield, CA 93307Ozone, CO, NO2, Total– and Speciated–VOC windspeed, wind direction, outdoor temperature, relativehumidity, barometric pressure, solar radiation forPAMSprogramBakersfield–California5558 California Ave.,Bakersfield, CA 93309Ozone, PM10 FRM, PM2.5 FRM, PM2.5 BAM/Non–FEMnon–regulatory, NO2, Lead, Toxics, HexavalentChromium (Cr6+), wind speed, wind direction, outdoortemperature, relative humidity, barometric pressure,solar radiationBakersfield,KernEdisonJohnson Farm–ShedRd, Edison, CA 93320Ozone, NO2, wind speed, wind direction, outdoortemperatureLebec1277 Beartrap Road,Lebec, CA 93243PM2.5 BAM non–regulatory, wind speed, wind direction,outdoor temperature, barometric pressureMaricopa755 Stanislaus St.,Maricopa, CA 93352Ozone, wind speed, wind direction, outdoor temperature,barometric pressureOildale3311 Manor St, Oildale,CA 93308Ozone, PM10 FRM, wind speed, wind direction, outdoortemperatureShafter578 Walker St, Shafter,CA 93263Ozone, NO2, Total– and Speciated–VOC, wind speed,wind direction, outdoor temperature, relative humidity,barometric pressure, solar radiation for PAMS program1The Bakersfield–Golden State AMS was closed in December 2009 due to planned road construction and wasrelocated to the Bakersfield–Municipal Airport(Bakersfield–Muni) AMS in 2012. See Appendix C for details.San Joaquin Valley Unified Air Pollution Control DistrictJune 25, 2013Annual Air Monitoring Network Plan11Table 5 Ambient Air Monitoring Sites in the San Joaquin Valley Air Basin (Continued)MSA, CountySite NameAddressParameters MonitoredClovis–Villa908 N. Villa Ave.,Clovis, CA 93612Ozone, PM10 FRM, PM2.5 FRM, PM2.5 BAM/FEM, CO,NO2, Total– and Speciated–VOC, wind speed, winddirection, outdoor temperature, relative humidity,barometric pressure, solar radiation for PAMS programFresno–Drummond4706 E. DrummondSt., Fresno, CA 93725Ozone, PM10 FRM, PM2.5 FEM, CO, NO2, wind speed,wind direction, outdoor temperature, barometric pressureFresno–Garland3727 N. First St, Ste.104, Fresno CA 93726Ozone, NO2, CO, SO2, PM10 FEM, PM2.5 FRM, PM2.5FEM/BAM, PM2.5 BAM/Non–FEM non–regulatory, Lead,wind direction, outdoor temperature, relative humidity,barometric pressureFresno,FresnoFresno–Pacific1716 Winery, Fresno,CA 93726PM2.5 FRMFresno–Sky Park4508 Chennault Ave,Fresno, CA 93722Ozone, CO, NO2, wind speed, wind direction, outdoortemperatureHuron16875 4thSt., Huron,CA 93234PM2.5 BAM/Non–FEM non–regulatory, barometricpressureParlier9240 S. RiverbendAve., Parlier, CA93648Ozone, NO2, Total– and Speciated–VOC, wind speed,wind direction, outdoor temperature, relative humidity,barometric pressure, solar radiation for PAMS programTranquillity32650 W. Adams,Tranquillity, CA 93668Ozone, PM2.5 BAM/FEM, wind speed, wind direction,outdoor temperature, barometric pressureSan Joaquin Valley Unified Air Pollution Control DistrictJune 25, 2013Annual Air Monitoring Network Plan12Table 5 Ambient Air Monitoring Sites in the San Joaquin Valley Air Basin (Continued)MSA, CountySite NameAddressParameters MonitoredHanford–Corcoran,KingsCorcoran–Patterson1520 Patterson Ave,Corcoran, CA 93212PM10 TEOM/FEM, PM2.5 FRM, wind speed, winddirection, outdoor temperature, barometric pressureHanford–Irwin807 S. Irwin St,Hanford, CA 93230Ozone, PM10 FRM, PM10 TEOM/FEM, PM2.5 BAM/FEM,NO2, wind speed, wind direction, outdoor temperature,barometric pressureMadera,MaderaMadera–City28261 Avenue 14,Madera, CA 93638Ozone, PM10 TEOM/FEM, PM2.5 BAM/FEM, wind speed,wind direction, outdoor temperature, barometric pressure,relative humidity, solar radiationMadera–Pump YardAvenue 8 and Road29 1/2, Madera, CA93637Ozone, NO2, Total– and Speciated–VOC, wind speed,wind direction, outdoor temperature, relative humidity,barometric pressure, solar radiation for PAMS programMerced,MercedMerced–Coffee385 S. Coffee St.,Merced, CA 95340Ozone, PM2.5 BAM/FEM, NO2, wind speed, winddirection, outdoor temperatureMerced–M Street2334 M Street,Merced, CA 95340PM10 FRM, PM2.5 FRMStockton,San JoaquinStockton–Hazelton1593 E. Hazelton St.,Stockton, CA 95205Ozone, PM10 FRM, PM2.5 FRM, PM2.5 BAM/FEM, CO,NO2, toxics, wind speed, wind direction, outdoortemperature, relative humidityStockton–Wagner/Holt8778 Brattle Pl.,Stockton, CA 95209PM10 FRMManteca530 Fishback Rd.,Manteca, CA 95337PM2.5 BAM/FEM, PM10 TEOM/FEM, wind speed, winddirection, outdoor temperature, barometric pressureTracy–Airport5749 S. Tracy Blvd.,Tracy, CA 95376Ozone, PM10 TEOM/FEM, PM2.5 BAM non–regulatory,NO2, wind speed, wind direction, outdoor temperature,barometric pressure, radio acoustic sounding system(RASS)San Joaquin Valley Unified Air Pollution Control DistrictJune 25, 2013Annual Air Monitoring Network Plan13Table 5Ambient Air Monitoring Sites in the San Joaquin Valley Air Basin (Continued)MSA, CountySite NameAddressParameters MonitoredModesto,StanislausModesto–14th Street814 14th Street,Modesto, CA 95354Ozone, PM10 FRM, PM2.5 FRM, PM2.5 BAM/FEM, CO,wind speed, wind direction, outdoor temperature,barometric pressureTurlock1034 S. Minaret St.,Turlock, CA 95380Ozone, PM10 FRM, PM2.5 BAM FEM, CO, NO2, windspeed, wind direction, outdoor temperature, barometricpressureVisalia–Porterville,TularePorterville1839 S. Newcomb St.,Porterville, CA 93257Ozone, PM2.5 BAM non–regulatory, wind speed, winddirection, outdoor temperature, barometric pressureSequoia–Ash MountainAsh Mountain,Sequoia National ParkCAOzone, PM2.5 BAM non–regulatory, wind speed, winddirection, outdoor temperature, relative humidity,solarradiationSequoia–Lower KaweahLower KaweahCampground, SequoiaNational Park, CAOzone, wind speed, wind direction, outdoor temperature,relative humidity, solar radiationVisalia–Airport9501 West AirportDrive, Visalia, CA93277Wind speed, wind direction, outdoor temperature, relativehumidity, barometric pressure, solar radiation, radioacoustic sounding system (RASS)Visalia–Church310 N. Church St.,Visalia, CA 93291Ozone, PM10 FRM, PM2.5 FRM, PM2.5 BAM non–regulatory, NO2, wind speed, wind direction, outdoortemperature, barometric pressureSan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 14 

### Ozone

Ozone is formed when its precursors (oxides of nitr ogen (NOx) and volatile organic compounds (VOC)) chemically react in the presence o f sunlight. The Valley’s topography, high temperatures, subsidence inversion s, and light winds are conducive to elevated ozone levels. Winds (at ground level or a t higher altitudes) transport pollutants from other basins into the Valley, within the Valle y to areas downwind, and from the Valley into other regions.

As specified in Table D–2 of Appendix D to Part 58, ozone monitoring site requirements are based on MSA and design values (se e Table 6). Table 7 shows that the Valley’s ozone monitoring network meets th e requirements. Sites are intended to represent population exposures and maxi mum concentrations so most ozone monitors are representative of neighborhood a nd regional scales. The Valley’s SLAMS ozone monitors are continuous analyz ers that detect ozone through ultraviolet absorption. As continuous devi ces, these monitors meet the “Timely/Public” objective, providing District staff with the data used in AQI forecasting and reporting. The Valley’s ozone moni toring sites, and their scales and site types are shown in Tables 8a and 8b.

Table 6 SLAMS Minimum Ozone Monitoring Requirement s

(Table D–2 of Appendix D to Part 58)

MSA population, based
on latest available census figures Number of monitors required if:

Most recent 3–year design
value concentrations ≥ 85% of any ozone NAAQS Most recent 3

– year design
value concentrations < 85% of any ozone NAAQS

> 10 million 4 2

4 – 10 million 3 1

350,000 – < 4 million 2 1

50,000 – < 350,000 1 0San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 15



### Table 7 8–Hour Ozone Requirements for the San Joaq uin Valley

Metropolitan
Statistical Area (MSA) 2012

Population Highest 2012

Ozone Design
Value in MSA (ppb) ≥ 85% of

2008 ozone NAAQS (75 ppb) Number of

monitors required (Table 5) Number of

active SLAMS

ozone monitor
sites

Bakersfield 2 731,005 93 Yes 2 6

Fresno 945,711 98 Yes 2 5

Hanford–
Corcoran 152,419 90 Yes 1 1

Madera 152,074 86 Yes 1 2

Merced 258,736 83 Yes 1 1

Modesto 519,940 88 Yes 2 2

Stockton 695,750 80 Yes 2 2

Visalia–
Porterville 450,840 95 Yes 2 2

1 Air monitors in the Eastern Kern County Air Polluti on Control District would count towards the monito rs required for the Bakersfield MSA. However, the “ Number of active ozone monitors” listed here includ es those in the Valley Portion of Kern County only.



### Table 8a San Joaquin Valley Ozone SLAMS Monitors

MSA County Site Scale Site Type Monitoring Objective

Bakersfield Kern Arvin–Di Giorgio Neighborhood High Concentration, Regional transport

1, 2, 3 Bakersfield

– California Neighborhood Population

Bakersfield–
Muni 1 Neighborhood High Concentration

Edison Neighborhood High concentration, Regional transport

Maricopa Neighborhood Regional transport

Oildale Neighborhood Regional transport

Shafter Neighborhood General/background

1 – Standards/Strategy 2 – Research Support 3 – Timely/Public

1 Bakersfield–Golden was shut down due to planned roa d construction in December 2009. The ozone equipme nt at the new Bakersfield–Muni site began operating in June 2012.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 16 

### Table 8a San Joaquin Valley Ozone SLAMS Monitors (Continued)

MSA County Site Scale Site Type Monitoring Objective

Fresno Fresno Clovis–Villa Neighborhood High Concentration, Population

1, 2, 3 Fresno–
Drummond Neighborhood Population, Regional transport

Fresno – Garland Neighborhood Population

Fresno

– Sky
Park Neighborhood Population, Regional transport

Parlier Neighborhood High Concentration, Regional transport

MSA County Site Scale Site Type Monitoring Objective
Hanford–
Corcoran Kings Hanford–
Irwin Neighborhood Population 1, 2, 3

MSA County Site Scale Site Type Monitoring Objective

Madera Madera Madera– Pump Yard Neighborhood General/background 1, 2, 3 Madera–City Neighborhood Population

MSA County Site Scale Site Type Monitoring Objective

Merced Merced Merced– Coffee Neighborhood Population 1, 2, 3

MSA County Site Scale Site Type Monitoring Objective

Stockton San

Joaquin Stockton–

Hazelton Neighborhood Population 1, 2, 3 Tracy–Airport Neighborhood Regional transport

1 – Standards/Strategy 2 – Research Support 3 – Timely/PublicSan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 17 

### Table 8a San Joaquin Valley Ozone SLAMS Monitors (Continued)

MSA County Site Scale Site Type Monitoring Objective

Modesto Stanislaus Modesto–

14 th Street Neighborhood Population 1, 2, 3 Turlock Neighborhood Population

MSA County Site Scale Site Type Monitoring Objective

Visalia–
Porterville Tulare Visalia–
Church Neighborhood Population 1, 2, 3 Porterville Neighborhood Population
1 – Standards/Strategy 2 – Research Support 3 – Timely/Public



### Table 8b San Joaquin Valley Ozone SPM Monitors

MSA County Site Scale Site Type Monitoring Objective

Fresno Fresno Tranquillity Urban
Scale Population 3

Visalia–
Porterville Tulare Sequoia

– Ash Mountain Regional High Concentration, Regional transport 3

Sequoia

– Lower Kaweah Regional Regional transport 3

3 –Timely/Public



### Photochemical Assessment Monitoring Stations

The monitoring objective of Photochemical Assessmen t Monitoring Stations (PAMS) is research support. Federal regulations (Clean Air A ct Section 182 and 40 CFR 58) require serious, severe, and extreme ozone nonattai nment areas to have PAMS sites to take speciated measurements of ozone precursors and allow for better understanding of the effect of precursors, control measures, and pho tochemistry on ozone formation. PAMS sites measure ozone, NOx, total– and speciated –VOC for the PAMS program, CO, and meteorology concurrently. Although the Val ley does not exceed federal or
state standards for NO 2 

### , NOx reductions contribute to air quality improvem ent for both
ozone and PM.

There are four classifications of PAMS sites:

• 

### Type 1: Background sites upwind of urban areas, wh ere ozone concentrations are presumed not to be influence d by nearby urban emissions.

• 

### Type 2: Maximum ozone precursor emissions sites, t ypically located in an urban center, where emissions strength s are the greatest.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 18 • 

### Type 3: Maximum ozone concentration sites, intende d to show the highest
ozone concentrations.

• 

### Type 4: Downwind ozone monitoring sites intended t o capture concentrations of transported ozone and precursor pollutants , and determine possible areas from which most of the transport may origi nate (Type 4 sites are currently not required for the San Joaquin Valley).

As shown in Table 9, the District has a total of si x PAMS sites configured as two networks, one centered around Fresno and one around Bakersfield. The PAMS program operates from June 1 through August 31 ever y year on a 1 in 3 day sampling schedule with an hourly NMOC analyzer. At least fo ur, three–hour integrated samples are collected each sampling day, referred to as a “ Trend Day.” However, additional samples are collected on “Episode Days,” days that are forecasted to have high ozone concentrations. The goal is to sample on three to five multi–day episodes in an ozone

season.

Table 9 SJV PAMS Sites (SLAMS)

Fresno MSA Type 1: Upwind/Background site Madera–Pump Yard

Type 2: Maximum precursor emissions Clovis–Villa

Type 3: Maximum ozone concentrations Parlier 1

Bakersfield MSA Type 1: Upwind/Background site Shafter

Type 2: Maximum precursor emissions Bakersfield–Mun i 2

Type 3: Maximum ozone concentrations Arvin 3

1 An NOy monitor will become operational in 2013.

2 Bakersfield–Golden was shut down for relocation in December 2009. The speciated PAMS equipment at the new Bakersfield– Muni site began operating in June 20 12, and all of the other PAMS equipment except for NMHC began operating in July 2012. The NMHC equipment began operating in October 2012.

3 Arvin–Bear Mountain Blvd. site has closed. PAMS eq uipment for the Type 3 site at the new Arvin–Di Gio rgio site will be installed when space becomes available.



### Particulate Matter (PM)

Particulate matter (PM) can be emitted directly as primary PM, and it can form in the atmosphere through chemical reactions of precursors to form secondary PM. Primary PM can be emitted either naturally: windblown dust and wildfires; or from human (anthropogenic) activity: agricultural operations, industrial processes, combustion of wood and fossil fuels, construction and demolition activities, and entrainment of road dust. The resulting ambient PM mixture includes ae rosols consisting of components of nitrates, sulfates, elemental carbons, organic carb on compounds, acid aerosols, trace metals, geological materials, etc. Under current r egulations, particulate matter is differentiated by particle size as opposed to compo sition. Federal air quality standards
differentiate two size fractions of PM: PM that is 10 microns or less in diameter (PM10)
and the smaller subset that is 2.5 microns or less in diameter (PM2.5).

The mountain ranges that surround the Valley contri bute to trapping pollutants, including PM, in the Valley. During the winter, we ather systems bring rainfall to theSan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 19 

### Valley, but the atmospheric environment also become s conducive to secondary PM formation. The Valley’s frequent and strong winter temperature inversions prevent air from rising and particulates remain trapped near th e surface. During winters with little rainfall or the Valley’s hot, dry summers, the dry soils contribute to PM emissions when
disturbed.

The California Regional Particulate Air Quality Stu dy (CRPAQS) is the Valley’s comprehensive particulate field study. CRPAQS moni toring occurred between December 1999 and February 2001 through the use of over 70 SPM PM10 sites and 50 SPM PM2.5 sites. Researchers have used CRPAQS meas urements for database development, analysis, and modeling. Data collecti on for the study has been completed but the data analysis is still ongoing. In additio n to CRPAQS, other studies assess particulate emissions from agricultural operations, unpaved and paved road particulate emissions, and particulate formation in fog episode s. The design of the Valley’s current PM network is an outgrowth of the results and analy sis from CRPAQS.

The Valley’s PM monitoring network includes Federal Reference Method (FRM) monitors, Federal Equivalent Method (FEM) monitors, and Non–FRM/FEM monitors.
FRM monitors for PM are manual filter–based monitor s; samples are collected on either a one–in–six day sampling schedule or a one–in–thre e day sampling schedule. FRM monitors meet the “Standards/Strategy” objective, h elping agencies determine the Valley’s attainment status and helping shape the st rategies for reaching or maintaining PM attainment. FRM filters can also be analyzed fo r PM speciation, so they are sometimes used for “Research Support” objectives as well.

Beta Attenuation Monitors (BAM) and Tapered Element Oscillating Microbalance (TEOM) monitors are continuous, near real–time moni tors that provide the hourly PM data used in AQI and Smoke Management System (SMS) burn allocations. Data from
these monitors are also used in hazard reduction bu rning allocations and in residential wood burning declarations. As such, these monitors help meet the “Timely/Public” objective.

Not all real–time monitors meet the “Standards/Stra tegy” objective because they do not meet the rigorous engineering design, quality assur ance, and quality control standards necessary for comparison to the NAAQS. An FEM moni tor is often a real–time monitor that has been designated by EPA as being equivalent to FRM monitors. FEMs satisfy both the “Standards/Strategy” objective and the “Ti mely/Public” objective. All of the Valley’s TEOMs are FEMs, and some of the Valley’s B AMs are FEMs.

PM10 Monitors in the Valley

The San Joaquin Valley has been redesignated to att ainment for PM10, and the
District’s 2007 PM10 Maintenance Plan and ongoing PM10 monitoring will assure continued compliance with the federal standard. Ta ble 10 shows the minimum number of PM10 sites required per MSA and Table 11 shows t he PM10 monitoring requirements for the San Joaquin Valley. The Valley’s SLAMS and SPM PM10 monitoring stations are summarized in Tables 12a, 1 2b, and 13 respectively.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 20



### Table 10 Minimum PM10 Monitoring Requirements

(Table D–4 of Appendix D to Part 58) (A range is presented, and the actual number of sta tions per area is jointly determined by EPA, the St ate, and the local agency)

Population category High concentration:
Ambient
concentrations
exceed the PM10 NAAQS by 20% or more ( ≥ 180 μg/m3) Medium concentration:
Ambient concentrations
exceed 80% of the PM10 NAAQS ( > 120 μg/m3) Low concentration:
Ambient
concentrations less
than 80% of the PM10 NAAQS ( < 120 μg/m3), or no design value

> 1,000,000 6 – 10 4 – 8 2 – 4

500,000 – 1,000,000 4 – 8 2 – 4 1 – 2

250,000 – 500,000 3 – 4 1 – 2 0 – 1

100,000 – 250,000 1 – 2 0 – 1 0



### Table 11 PM10 Monitoring requirements for the Vall ey

Metropolitan
Statistical Area (MSA) County 2012 Population PM10

24–hour 2012 Highest
concentration in MSA (μg/m3) 1 Monitors

required Actual #

of SLAMS
sites in
MSA Actual

# of SPM
sites in
MSA

Bakersfield 2 Kern 731,005 100 1 – 2 2 0

Fresno Fresno 945,711 114 1 – 2 3 0

Hanford–
Corcoran Kings 152,419 128 1 – 2 2 1

Madera Madera 152,074 115 0 1 0

Merced Merced 258,736 89 0 – 1 1 0

Modesto Stanislaus 519,940 103 1 – 2 2 0

Stockton San

Joaquin 695,750 139 2 – 4 2 2

Visalia–
Porterville Tulare 450,840 76 0 – 1 1 0

1 Pending Exceptional Events are excluded from Table 10.

2 The Bakersfield–Golden State AMS was closed in Dece mber 2009 due to planned road construction and was relocated to the Bakersfield–Municipal Airport (B akersfield–Muni) AMS in 2012. The PM10 and PM2.5 monitors were operational at Bakersfield–Muni from July 20 12 until late February 2013. See Appendix C for de tails.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 21



### Table 12a San Joaquin Valley PM10 SLAMS monitor in formation

MSA/CBSA: Bakersfield County: Kern

Site Name Scale Site Type Monitoring Objective Sampling

Schedule

Oildale Neighborhood Population Standards/Strategy Research Support 1:6

Bakersfield–
California Neighborhood Population Standards/Strategy Research Support 1:6

MSA/CBSA: Fresno County: Fresno

Site Name Scale Site Type Monitoring Objective Sampling

Schedule

Fresno–
Drummond Neighborhood Population Standards/Strategy Research Support 1:6

Fresno–Garland Urban NCORE Population Exposure 1:1

Clovis–Villa Neighborhood Population Standards/Strategy Research Support 1:6

MSA/CBSA: Hanford–Corcoran County: Kings

Site Name Scale Site Type Monitoring Objective Sampling

Schedule

Hanford–Irwin Neighborhood Population Standards/Strategy Research Support 1:6

Corcoran–
Patterson Neighborhood High Concentration Standards/Strategy

Research Support 1–Hour

MSA/CBSA: Madera County: Madera

Site Name Scale Site Type Monitoring Objective Sampling

Schedule

Madera–City Neighborhood Population Standards/Strategy Research Support Timely/Public 1–HourSan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 22 

### Table 12a San Joaquin Valley PM10 SLAMS monitor in formation (Continued)

MSA/CBSA: Merced County: Merced

Site Name Scale Site Type Monitoring Objective Sampling

Schedule

Merced–M Street Neighborhood High Concentration, Population Standards/Strategy

Research Support 1:6

MSA/CBSA: Stockton County: San Joaquin

Site Name Scale Site Type Monitoring Objective Sampling

Schedule
Stockton–
Hazelton Neighborhood Population Standards/Strategy Research Support 1:6

Stockton– Wagner/ Holt Neighborhood Population Standards/Strategy Research Support 1:6

MSA/CBSA: Modesto County: Stanislaus

Site Name Scale Site Type Monitoring Objective Sampling

Schedule
Modesto–14 th

Street Neighborhood Population Standards/Strategy Research Support 1:6

Turlock Neighborhood Population Standards/Strategy Research Support 1:6

MSA/CBSA: Visalia–Porterville County: Tulare

Site Name Scale Site Type Monitoring Objective Sampling

Schedule

Visalia–Church Neighborhood Population Standards/Strategy Research Support 1:6San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 23



### Table 12b San Joaquin Valley PM10 SPM monitor info rmation

MSA/CBSA: Hanford–Corcoran County: Kings

Site Name Scale Site Type Monitoring Objective Sampling

Schedule

Hanford–Irwin Neighborhood Population Research Support Timely/Public 1–Hour

MSA/CBSA: Stockton County: San Joaquin

Site Name Scale Site Type Monitoring Objective Sampling

Schedule

Manteca Neighborhood Population Standards/Strategy Research Support 1–Hour

Tracy–Airport Neighborhood Regional transport Standards/Strategy

Research Support Timely/Public 1–Hour



### Table 13 San Joaquin Valley PM10 monitor types

MSA/CBSA: Bakersfield County: Kern 1 Instrument Type Monitor Type

FRM FEM SLAMS SPM

Site Name

Bakersfield–California 1 1

Oildale 1 1

Total SLAMS/SPM 2

MSA/CBSA: Fresno County: Fresno Instrument Type Monitor Type

FRM FEM SLAMS SPM

Site Name

Clovis–Villa 1 1

Fresno–Drummond 1 1

Fresno–Garland 1 1

Total SLAMS/SPM 3

1 The Bakersfield–Golden State AMS was closed in Dec ember 2009 and was relocated to the Bakersfield–Municipal Airport (Bakersfield–M uni) AMS in 2012. The PM10 and PM2.5 monitors were operational at Bakersfield–M uni from July 2012 until late February 2013. See Appendix C for details.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 24



### Table 13 San Joaquin Valley PM10 monitor types (Co ntinued)

MSA/CBSA: Hanford–Corcoran County: Kings Instrument Type Monitor Type

FRM FEM SLAMS SPM

Site Name
Corcoran 1 1

Hanford–Irwin 1 1

1 1

Total SLAMS/SP 2 1

MSA/CBSA: Madera County: Madera Instrument Type Monitor Type

FRM FEM SLAMS SPM

Site Name Madera–City 1 1

Total SLAMS/SPM 1

MSA/CBSA: Merced County: Merced Instrument Type Monitor Type

FRM FEM SLAMS SPM

Site Name

Merced–M Street 1 1

Total SLAMS/SPM 1

MSA/CBSA: Stockton County: San Joaquin Instrument Type Monitor Type

FRM FEM SLAMS SPM

Site Name

Manteca 1 1

Stockton–Hazelton 1 1

Stockton–Wagner/Holt 1 1

Tracy–Airport 1 1

Total SLAMS/SPM 2 2San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 25



### Table 13 San Joaquin Valley PM10 monitor types (Co ntinued)

MSA/CBSA: Modesto County: Stanislaus Instrument Type Monitor Type

FRM FEM SLAMS SPM

Site Name

Modesto–14 th Street 1 1

Turlock 1 1

Total SLAMS/SPM 2

MSA/CBSA: Visalia – Porterville County: Tulare Instrument Type Monitor Type

FRM FEM SLAMS SPM

Site Name

Visalia–Church 1 1

Total SLAMS/SPM 1



### PM2.5 Monitors in the Valley

The San Joaquin Valley is designated nonattainment for PM2.5. Table 14 shows the minimum number of PM2.5 sites required per MSA and Table 15 shows the PM2.5 monitoring requirements for the San Joaquin Valley. The Valley’s SLAMS and SPM PM2.5 monitoring stations are summarized in Tables 16a, 16b, and 17 respectively.

Table 14 Minimum PM2.5 Monitoring Requirements

MSA population Most recent 3–year design value

≥ 85% of any PM2.5 NAAQS (equivalent to an annual design value

≥ 10.2 μg/m3 or a 24–hour design
value ≥ 29.8 μg/m3), or no design value Most recent 3

– year design value

< 85% of any PM2.5 NAAQS (equivalent to an annual design value

< 10.2 μg/m3 or a 24–hour design
value < 29.8 μg/m3), or no design value

> 1,000,000 3 2

500,000 – 1,000,000 2 1

50,000 – < 500,000 1 0San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 26



### Table 15 PM2.5 Monitoring requirements for the Val ley

Metropolitan Statistical Area (MSA) County 2012 Population PM2.5 1

24

– hour
2010–
2012 Design
Value in MSA (μg/m3) Annual

2010–
2012 Design
Value in MSA (μg/m3) Monitors

required Actual #

of
SLAMS
sites in MSA Actual

# of SPM
sites
in MSA

Bakersfield 2 Kern 731,005 58 15.6 2 2 1

Fresno 3 Fresno 945,711 57 14.8 2 3 4

Hanford–
Corcoran Kings 152,419 54 15.8 1 1 1

Madera Madera 152,074 51 19.0 1 1 0

Merced Merced 258,736 41 14.3 1 1 1

Modesto Stanislaus 519,940 49 14.9 2 3 0

Stockton San

Joaquin 695,750 38 11.6 2 2 1

Visalia–
Porterville Tulare 450,840 47 14.8 1 1 3

1 Air quality data may include data influenced by exc eptional events and/or data completeness and substi tution requirements.

2 The Bakersfield–Golden State AMS was closed in Dec ember 2009 and was relocated to the Bakersfield–Mun icipal Airport (Bakersfield–Muni) AMS in 2012. The PM10 and PM2.5 monitors were operational at Bakersfield –Muni from July 2012 until late February 2013. See Appendix C for details.

3 During January 2012, the Fresno–First Street AMS cl osed and moved two blocks to the north where it bec ame the Fresno–Garland AMS so the January 2012 values fro m the Fresno–First site were not counted. The 2010 and 2011
values from the Fresno–First site were combined w ith the 2012 values from the Fresno–Garland site to determine
the values shown in the Table 14.



### Table 16a San Joaquin Valley PM2.5 SLAMS monitor i nformation

MSA/CBSA: Bakersfield County: Kern

Site Name Scale Site Type Monitoring Objective Sampling
Schedule

Bakersfield–
Planz Neighborhood Population Standards/Strategy 1:3

Bakersfield–
California Neighborhood Population Standards/Strategy DailySan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 27 

### Table 16a San Joaquin Valley PM2.5 SLAMS monitor i nformation (Continued)

MSA/CBSA: Fresno County: Fresno

Site Name Scale Site Type Monitoring Objective Sampling
Schedule
Fresno–
Pacific Neighborhood Population Standards/Strategy Research Support 1:3

Fresno–
Garland Neighborhood High
Concentration Standards/Strategy

Research Support Daily

Clovis–Villa Neighborhood High Concentration Standards/Strategy

Research Support 1:3

MSA/CBSA: Hanford–Corcoran County: Kings

Site Name Scale Site Type Monitoring Objective Sampling
Schedule

Corcoran–
Patterson Neighborhood High
Concentration Standards/Strategy

Research Support 1:3

MSA/CBSA: Madera County: Madera

Site Name Scale Site Type Monitoring Objective Sampling
Schedule

Madera–City Neighborhood Population Standards/Strategy Research Support Timely/Public 1–Hour

MSA/CBSA: Merced County: Merced

Site Name Scale Site Type Monitoring Objective Sampling
Schedule

Merced–M
Street Neighborhood Population Standards/Strategy Research Support 1:3San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 28 

### Table 16a San Joaquin Valley PM2.5 SLAMS monitor i nformation (Continued)

MSA/CBSA: Stockton County: San Joaquin

Site Name Scale Site Type Monitoring Objective Sampling
Schedule

Manteca Neighborhood Population Standards/Strategy Research Support 1–Hour

Stockton–
Hazelton Neighborhood Population Standards/Strategy Research Support 1–Hour

Standards/Strategy Research Support Timely/Public 1–Hour

MSA/CBSA: Modesto County: Stanislaus

Site Name Scale Site Type Monitoring Objective Sampling
Schedule

Modesto–14 th

Street Neighborhood Population Standards/Strategy Research Support 1:3 / 1–Hour

Standards/Strategy Research Support Timely/Public 1–Hour

Turlock Neighborhood Population Standards/Strategy Research Support Timely/Public 1–Hour

MSA/CBSA: Visalia – Porterville County: Tulare

Site Name Scale Site Type Monitoring Objective Sampling
Schedule
Visalia–
Church Neighborhood Population Standards/Strategy Research Support 1:3San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 29



### Table 16b San Joaquin Valley PM2.5 SPM monitor inf ormation

MSA/CBSA: Bakersfield County: Kern 1

Site Name Scale Site Type Monitoring Objective Sampling
Schedule

Bakersfield–
California Neighborhood Population Area–wide 1–Hour

Lebec Neighborhood Population Research Support Timely/Public 1–Hour

MSA/CBSA: Fresno County: Fresno

Site Name Scale Site Type Monitoring Objective Sampling
Schedule

Fresno– Garland Neighborhood High Concentration Area–wide 1–Hour

Fresno–
Drummond Neighborhood High Concentration Research Support Timely/Public 1–Hour

Huron Neighborhood Population Research Support Timely/Public 1–Hour

Tranquillity Urban Background Standards/Strategy Research Support Timely/Public 1–Hour

MSA/CBSA: Hanford–Corcoran County: Kings

Site Name Scale Site Type Monitoring Objective Sampling
Schedule

Hanford–
Irwin Neighborhood Population Research Support Timely/Public 1–Hour

MSA/CBSA: Merced County: Merced

Site Name Scale Site Type Monitoring Objective Sampling
Schedule

Merced– Coffee Neighborhood Population Research Support Timely/Public 1–Hour

1 The Bakersfield–Golden State AMS was closed in Dece mber 2009 and was relocated to the Bakersfield– Mun icipal Airport (Bakersfield–Muni) AMS in 2012. The PM2.5 monitor operated for a short time. See Appendix C for details.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 30 

### Table 16b San Joaquin Valley PM2.5 SPM monitor inf ormation (Continued)

MSA/CBSA: Stockton County: San Joaquin

Site Name Scale Site Type Monitoring Objective Sampling
Schedule Tracy– Airport Neighborhood Regional transport Research Support

Timely/Public 1–Hour

MSA/CBSA: Visalia–Porterville County: Tulare

Site Name Scale Site Type Monitoring Objective Sampling
Schedule Sequoia–
Ash
Mountain Regional Regional transport Research Support

Timely/Public 1–Hour

Porterville Neighborhood Population Research Support Timely/Public 1–Hour

Visalia– Church Neighborhood Population Area–wide 1–Hour



### Table 17 San Joaquin Valley PM2.5 monitor types

MSA/CBSA: Bakersfield County: Kern 1 Instrument Type Monitor Type

FRM FEM Non–FEM SLAMS SPM

Site Name
Bakersfield–Planz 1 1

Bakersfield–California 1 1

1 1
Lebec 1 1
Total SLAMS/SPM 2 2

MSA/CBSA: Fresno County: Fresno Instrument Type Monitor Type

FRM FEM Non–FEM SLAMS SPM

Site Name
Clovis–Villa 1 1 1

Fresno–Garland 1 1

1 1
Fresno–Pacific 1 1
Fresno–Drummond 1 1
Huron 1 1 Tranquillity 1 1

Total SLAMS/SPM 3 4

1 The Bakersfield–Golden State AMS was closed in Dec ember 2009 and was relocated to the Bakersfield–Municipal Airport (Bakersfi eld–Muni) AMS in 2012. The PM10 and PM2.5 monitors were ope rational at Bakersfield–Muni from July 2012 until l ate February 2013. See App endix C for details.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 31



### Table 17 San Joaquin Valley PM2.5 monitor types (C ontinued)

MSA/CBSA: Hanford–
Corcoran County: Kings Instrument Type Monitor Type

FRM FEM Non–FEM SLAMS SPM

Site Name

Corcoran–Patterson 1 1

Hanford–Irwin 1 1
Total SLAMS/SPM 1 1

MSA/CBSA: Madera County: Madera Instrument Type Monitor Type
FRM FEM Non

– FEM SLAMS SPM
Site Name Madera–City 1 1
Total SLAMS/SPM 1

MSA/CBSA: Merced County: Merced Instrument Type Monitor Type
FRM FEM Non

– F EM SLAMS SPM
Site Name
Merced–Coffee 1 1
Merced–M Street 1 1
Total SLAMS/SPM 1 1

MSA/CBSA: Stockton County: San Joaquin Instrument Type Monitor Type

FRM FEM Non–FEM SLAMS SPM

Site Name
Manteca 1 1
Stockton–Hazelton 1 1 Tracy–Airport 1 1
Total SLAMS/SPM 2 1

MSA/CBSA: Modesto County: Stanislaus Instrument Type Monitor Type

FRM FEM Non–FEM SLAMS SPM

Site Name

Modesto–14 th Street 1 1 2
Turlock 1 1
Total SLAMS/SPM 3San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 32



### Table 17 San Joaquin Valley PM2.5 monitor types (C ontinued)

MSA/CBSA: Visalia–
Porterville County: Tulare Instrument Type Monitor Type

FRM FEM Non–FEM SLAMS SPM

Site Name

Porterville 1 1 Sequoia–Ash Mountain 1 1

Visalia–Church 1 1

1 1
Total SLAMS/SPM 1 3



### PM Collocation Requirements (40 CFR 58 Appendix A, Sections 3.2.5 and 3.2.6)

The District’s Particulate Matter collocation requi rements are met by the “Primary Quality Assurance Organization” (PQAO). ARB is the PQAO for the District as well as
several other air districts. See CARB’s Air Monito ring Network Plans for details on how collocation requirements are met by the PQAO.

Public Review of Changes to the PM2.5 Monitoring Ne twork

Public input is required whenever the District prop oses to move an existing violating PM2.5 monitor (40 CFR 58.10(c)). The District uses the annual Air Monitoring Network Plan to notify and seek public comment on any plann ed changes to the existing PM2.5 network. The public has 30 days to comment on the Monitoring Network Plan and any PM2.5 network changes. The plan is posted on the D istrict website, and public notice is published in a newspaper of general circulation in each affected CBSA.

In the event of unanticipated changes to the PM2.5 network that occur outside the Monitoring Network Plan process, the District will post public notice in Valley newspapers, post a document describing the proposed changes on its website, and seek public comment.

Carbon Monoxide

On August 12, 2011 EPA issued the decision to retai n the existing NAAQS for CO. The primary standards are 9 parts per million (ppm) mea sured over 8 hours, and 35 ppm measured over 1 hour. As specified in 40 CFR Part 58 Appendix D Section 4.2, one CO monitor is required to be placed at a “near–road ” NO 2 

### monitoring station in a CBSA with population of 1 million or more. Moving an ex isting monitor to a new location is acceptable.

At NCore sites, CO monitors required in CBSAs with populations of 2.5 million or more are to be operating by January 1, 2015, and CO moni tors required in CBSAs with populations of 1 million or more are to be operatio nal by January 1, 2017. Currently, the CBSAs within the District are comprised of less tha n 1 million people, thus the District is not required to place a CO monitor at a near–road N O 2 

### monitoring station. EPA isSan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 33 

### providing authority to EPA Regional Administrators to require additional monitoring in case–by–case circumstances, such as in areas impact ed by major stationary CO sources, in urban downtown areas, or urban street c anyons, or in areas adversely impacted by meteorological and/or topographical inf luences.

In the past, monitoring has shown that the Valley’s CO concentrations have not exceeded the NAAQS for over a decade. As noted in Section 4.2 of Appendix D of 40 CFR Part 58, there are no minimum requirements of t he number of CO monitoring sites. The District continues CO monitoring to supplement related meteorological and criteria pollutant data. Table 18 summarizes the Valley’s C O monitoring sites.

Table 18 Carbon Monoxide Monitoring Stations in th e San Joaquin Valley

Site Name Sampling Frequency Scale Site Type Objective

Bakersfield–Muni 1 Continuous Neighborhood Population Standards/ Strat egy

Clovis–Villa Continuous Neighborhood Population Sta ndards/ Strategy

Fresno–Drummond Continuous Neighborhood Population Standards/ Strategy

Fresno–Garland 2 Continuous Neighborhood Population Max Precursor Emissions Impact

Fresno–Sky Park Continuous Neighborhood Population Standards/ Strategy

Modesto–14 th Street Continuous Neighborhood Population Populati on Exposure

Stockton– Hazelton Continuous Neighborhood Populati on Population Exposure

Turlock Continuous Neighborhood Population Standard s/ Strategy

1 The Bakersfield–Golden State AMS was closed in Dece mber 2009 and has been relocated to the Bakersfield – Municipal Airport (Bakersfield–Muni) site.

2 In December 2011, CARB moved the Fresno–First air m onitoring station to Garland Avenue which is two bl ocks
north of the Fresno–First site.



### Nitrogen Dioxide

In 2010, EPA retained the annual average NO 2 

### standard of 53 ppb, and established a
new 1–hour NO 2 

### standard at the level of 100 parts per billion (pp b). Recognizing that
the current NO 2 

### network is not adequate for fully assessing compli ance with the new NAAQS, EPA finalized a Three–Tier Network design th at will represent NO 2 

### concentrations that occur near freeways, urban area s, and locations aimed at protecting susceptible and vulnerable communities. Per 40 CFR Part 58, the Three–Tier Network design is comprised of:

(1) In CBSAs with more than 1,000,000 people, one m onitor that represents highest
NO 2 

### exposure with a neighborhood scale or larger (2) Near–road monitoring at locations of expected m aximum 1–hour NO 2 

### concentrations near heavily trafficked roads in urb an areas (3) A NO 2 

### network consisting of 40 monitors designed by the R egional Administrators to protect susceptible and vulnerabl e communitiesSan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 34 

### Even though the District is not required to have an area–wide monitor, the District operates an extensive NO 2 

### monitoring network. The District locates NO 2 

### analyzers as required at PAMS AMSs and generally collocates NO 2 

### analyzers wherever an ozone monitor is required. Currently, these 16 monitors indicate that the District has low NO 2 

### levels that would be in compliance with both the NO 2 

### standards if the site met NAAQS siting criteria. Because these measurements are low and traffic volu mes are also low when compared to other areas of the State, the Dist rict anticipates meeting the hourly
standard once the near–road monitors are built and begin collecting data. The NO 2 

### monitoring stations in the San Joaquin Valley are s hown in Table 19.

The District is in the process of locating and buil ding one NO 2 

### near–road monitoring site in each of the Fresno, Bakersfield, Stockton, and M odesto CBSAs (four in total). The District has found potential NO 2 

### near–road monitoring sites in the Bakersfield and Fresno CBSAs. The required documentation for these two NO 2 

### near–road monitoring sites is found in Appendix D and E. The search for the other two locations is continuing and will be presented to the public as required by the CFR.

The third network, the Regional Administrator Requi red Monitoring Network (RA40) will
consist of 40 NO 2 

### sites located throughout the United States and thei r locations will be determined by the Regional Administrators. These 4 0 sites would be in addition to the
minimum NO 2 

### monitoring requirements. The specific locations f or these sites have not been determined by EPA Region 9. The District will work with EPA Region 9 to address
RA40 NO 2 

### siting, as appropriate.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 35



### Table 19 NO 2 

### Monitoring Stations in the San Joaquin Valley

Site Name Sampling

Frequency Scale Site Type Objective

Bakersfield–
California Continuous Neighborhood Population Population Exposure

Bakersfield–
Muni 1 Continuous Neighborhood High Concentration Standards/Strategy,
Research

Clovis–Villa Continuous Neighborhood High Concentration Standards/Strategy,
Research

Edison Continuous Neighborhood Population Population Exposure

Fresno–
Drummond Continuous Neighborhood High Concentration Standards/Strategy

Fresno–
Garland Continuous Neighborhood Population Max Precursor Emissions Impact
Fresno–Sky
Park Continuous Neighborhood Population Standards/Strategy

Hanford–Irwin Continuous Neighborhood Population Standards/Strategy, Research, Timely/Public
Madera– Pump Continuous Neighborhood Population Standards/Strategy,
Research

Merced–
Coffee Continuous Neighborhood Population Standards/Strategy

Parlier Continuous Neighborhood Population Standards/strategy,
Research Shafter Continuous Neighborhood Population Population exposure

Stockton–
Hazelton Continuous Neighborhood Population Population Exposure

Tracy–Airport Continuous Neighborhood Population Standards/Strategy
Turlock Continuous Neighborhood Population Standards/Strategy

Visalia–
Church Continuous Neighborhood Population Standards/Strategy

1 The Bakersfield–Golden State NO 2 monitor was relocated to the Bakersfield–Municipal Airport (Bakersfield–Muni)
site in 2012.



### Sulfur Dioxide

In 2010, EPA revised the SO 2 

### NAAQS and monitoring requirements in the Federal Register (CFR, 40 CFR Part 58, Section 4.4). EPA e stablished a new primary 1–hour standard of 75 parts per billion (ppb), and also re voked the previous 24–hour and annual primary standards. The number of monitor re quirements for SO 2 

### is determined by the Populations Weighted Emissions Index (PWEI) value in units of million persons– tons per year. The PWEI is calculated using each C BSA’s updated census data or estimates, and a combined total of the latest avail able county level SO 2 

### emissions data in the National Emissions Inventory for the countie s in each CBSA. The population of aSan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 36 

### CBSA is multiplied with the total amount of SO 2 

### in tons per year emitted within a CBSA, and the resulting product is then divided by one mi llion to produce the PWEI value. The Valley’s PWEI values are shown in Table 20a.

Table 20a Populations Weighted Emissions Index for the San Joaquin Valley County (CBSA) Total County Population 1 SO 2 Tons per Year 2 PWEI

Fresno 945,711 458 433

Kern 850,006 2,212 1,880

Kings 152,419 55 8

Madera 152,074 113 17

Merced 258,736 66 17

San Joaquin 695,750 1,097 763

Stanislaus 519,940 312 162

Tulare 450,840 122 55

1 Total County Population includes the entire county . Population data from California Department of Finance E–1 Population Estimates for Cities, Cou nties and the State, January 1, 2012.

2 SO 2 Tons per Year includes the entire county. SO 2 data is from the most recent data available from t he 2008 National Emissions Inventory for each county. T he data from the 2009 National Emissions Inventory for each county are not yet available.



### As per 40 CFR Part 58, Appendix D Section 4.4, at l east three SO 2 

### monitors are required in CBSAs with a PWEI value equal to or gre ater than 1,000,000. CBSAs with a PWEI value equal to or greater than 100,000, but le ss than 1,000,000, are required to
have at least two SO 2 

### monitors. A minimum of one SO 2 

### is required in CBSAs with a PWEI value equal to or greater than 5,000, but less than 100,000. There is no required
number of SO 2 

### monitors for CBSAs that do not exceed the federal standard for SO 2



### . The Valley does not exceed the federal standard for SO 2 

### but there is one SO 2 

### monitoring site in the Valley (shown in Table 20b). This Fresno–Garland monitor is operated by CARB and is part of the NCore Network.

Table 20b SO 2 

### Monitoring Station in the San Joaquin Valley

Site Name Sampling

Frequency Scale Site Type Objective

Fresno– Garland Continuous Neighborhood Population Standards/ Strat egy



### Lead

EPA revised the lead NAAQS and monitoring requireme nts in the Federal Register on November 12, 2008 (40 CFR 58.10). The rule became effective on January 26, 2011. EPA requires monitoring agencies to install non–source oriented lead monitors at NCore sites in CBSAs with populations of 500,000 or greater. The only site meeting
these criteria within the District is Fresno–Garlan d which is operated by the CaliforniaSan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 37 

### Air Resources Board. In December 2011, CARB instal led a TSP–Lead sampler to satisfy this requirement. EPA also requires state monitoring agencies to use the emission threshold of 0.5 tons per year (tpy) when determining if a monitor should be placed near an industrial facility that emits lead. The emission threshold for airport sources is 1.0 tpy, except for airports that are in cluded in special studies. The District has not identified any lead sources above the afore mentioned thresholds, thus it is not required to monitor for that threshold at this time

.

Toxics

The airborne toxics program is run by the CARB. To xics measurements are collected at Bakersfield–California, Fresno

– 

### Garland, and Stockton–Hazelton. Periodic, 24–hour samples are analyzed for the following gases: benze ne, Carbon tetrachloride, chloroform, ethylene dibromide, ethylene dichloride , methyl chloroform, methylene chloride, perchloroethylene, toluene, trichloroethy lene, and m–, p–, and o–xylene. The samples are also analyzed for the following particu late metals: arsenic and chromium– 6. CARB’s Integrated NMOC sampling program and the District’s PAMS NMOC sampling program also identify and quantify several toxic hydrocarbon species.

NCore

EPA’s October 2006 ambient air monitoring amendment s established a requirement for National Core (NCore) multi–pollutant monitoring st ations to be operational by January 1, 2011. The Fresno–First AMS, which was operated by CARB, was selected by EPA to be an NCore site. CARB submitted an NCore plan to EPA in November 2009. The Fresno––First site already met the NCore requiremen ts for filter–based and continuous PM2.5, speciated PM2.5, ozone, and meteorology. In December 2010, CARB installed trace level CO, trace level SO 2 

### , trace level NOy, and continuous PM–Coarse monitor s at this site. A gas dilution calibrator, a zero ai r generator, and digital data loggers were also installed to support NCore monitoring. In Dec ember 2011, CARB installed a TSP– lead sampler which completed all the pollutant moni toring requirements for the NCore program. Additionally, CARB moved the Fresno–First AMS to Garland Avenue which is
two blocks north of the Fresno–First site. The Fre sno–Garland AMS continues to serve as an NCore site. This relocation was recently app roved by EPA, see Appendix F for
details.

Meteorology

A variety of meteorological parameters are measured for various District programs affected by weather. Such programs include air qua lity forecasting, PAMS, exceptional events, long–term planning, and pollutant trend ass essment. These activities help protect public health and have made the public and media more aware of air quality and what can be done to reduce air pollution. See Tabl e 21 for the meteorological parameters measured in the Valley.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 38 

### Table 21 Meteorological Parameter Monitoring Stati ons in the San Joaquin Valley

Site Wind

Speed Wind

Direction Outdoor

Temperature Relative

Humidity Barometric

Pressure Solar

Radiation

Arvin–Di Giorgio X

Bakersfield–California X X X X X X

Bakersfield–Muni 1 X X X X X X

Clovis–Villa X X X X X X

Corcoran–Patterson X X X X

Edison X X X

Fresno–Drummond X X X X

Fresno–Garland X X X X X

Fresno–Sky Park X X X

Hanford–Irwin X X X X

Huron X

Lebec X X X X

Madera–City X X X X X X

Madera–Pump Yard X X X X X X

Manteca X X X X

Maricopa X X X X

Merced–Coffee X X X

Modesto–14 th Street X X X X

Oildale X X X

Parlier X X X X X X

Porterville X X X X

Sequoia–Ash Mountain X X X X X

Sequoia–Lower
Kaweah X X X X X

Shafter X X X X X X

Stockton–Hazelton X X X X

Tracy–Airport X X X X

Tranquillity X X X X

Turlock X X X X

Visalia–Church X X X X

Visalia–Airport X X X X X X

1 The Bakersfield–Golden State AMS was closed in Dece mber 2009 and has been relocated to the Bakersfield – Municipal Airport (Bakersfield–Muni) site.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 39 

### Summary of Recent Changes to the District’s Air Mon itoring Network (Period: 2011 through Current)

• In 2011 and 2012, Anderson sampling instruments at the Fresno–Pacific, Merced–M Street, Corcoran, Clovis, and Corcoran monitoring s ites were replaced with Partisol
Units.

• In December 2011, CARB moved the Fresno–First AMS to Garland Avenue which is
two blocks north of the Fresno–First site. The new site is now referred to as Fresno–Garland and became operational on December 3 1, 2011. On March 7, 2013, EPA official approved the relocation and a co py of the letter is attached as Appendix F.

• In 2011, the Corcoran AMS was shut down temporaril y due to safety issues and repairs were made to the site. The site resumed op erating in August 2012 with a Grimm 180 PM2.5 monitor being used for acceptance t esting and evaluation purposes, a real–time PM10 monitor, and a filter–ba sed PM2.5 FRM monitor. Redundant PM10 monitors were removed and the higher time resolution monitor kept. The collocated PM10 monitor was moved to the Fresno–Drummond site.

• The collocated PM10 monitor at the Fresno–Drummond site began reporting data in October 2012.

• The temporary PM10 monitor at the Bakersfield–Cali fornia site was moved to the Bakersfield–Muni site which replaced the Bakersfiel d–Golden site however the monitor is no longer operating at Bakersfield–Muni since PM monitoring is being moved to a new location (see Appendix C for details ).

• A PM2.5 FEM/BAM Special Purpose Monitor was instal led at the Fresno Drummond site in October 2012. The purpose of this analyzer is to provide data to compare with the Fresno–Pacific analyzer.

• In December 2009, the District was forced to close the Bakersfield–Golden State Highway (Bakersfield–Golden) air monitoring station (AMS) due to the expansion of Golden State Highway and subsequent loss of the air monitoring site lease. As referenced in the District’s previous Network Plans as a planned change to the air monitoring network, the Bakersfield–Golden AMS was relocated to the Bakersfield– Municipal Airport (Bakersfield–Muni) site. The Bak ersfield–Muni site was intended to serve primarily as a PAMS Type 2 site, in additi on to providing monitoring of both PM10 and PM2.5 for forecasting purposes. All of th e equipment was installed in 2012. However, it soon became apparent that this s ite was not acceptable as a PM10 and PM2.5 site because site specific emissions from nearby sources were impacting the site, and the site was therefore not measuring ambient particulate concentrations. The PM10 and PM2.5 analyzers were subsequently removed at the end of February 2013, for potential relocation to a better site as soon as practicable. For complete details see Appendix C.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 40 

### Summary of Planned Changes to the District’s Air Mo nitoring Network (Period: Current through Mid–2014)

The Valley air monitoring network is continually be ing improved. MSA–specific changes are generally described below. Before any action i s taken on the planned changes noted in this section, the District will work with ARB and EPA, as appropriate, to address necessary requirements for documentation.

EPA has recently changed both CO and NOx monitoring regulations. EPA has noted that some of the existing analyzers are no longer n eeded for NAAQS purposes. The District will examine the CO and NOx monitoring net work requirements to determine whether or not changes are needed to the existing n etwork.

Stockton CBSA/MSA

The District is planning on shutting down the Stock ton Wagner/Holt AMS PM10 AMS in 2013, given that the existing Stockton Hazelton PM1 0 AMS meets the minimum PM10 monitoring requirements for Stockton CBSA/MSA. Add itionally, PM10 Special Purpose Monitors (SPM) in Tracy and Manteca provide PM10 mo nitoring in Stockton CBSA/MSA. Required documentation for this change w ill be provided to EPA outside of this network plan.

Modesto CBSA/MSA

The District does not have any changes scheduled fo r this MSA during this time period.

Merced CBSA/MSA

The District does not have any changes scheduled fo r this MSA during this time period.

Madera CBSA/MSA

The District may investigate consolidating Madera–P ump into the Madera–City site.

Fresno CBSA/MSA

The District is investigating consolidating Fresno– Pacific into the Fresno–Drummond site. To provide supporting information, the Distr ict has installed an SPM at the Fresno– Drummond AMS. In addition, a NOy monitor will be ad ded to the Parlier site comply with the regulations for PAMS Type 3 sites.

Hanford–Corcoran CBSA/MSA

The District has started analyzing the data from th e Grimm 180 and preliminary
indications are that the Grimm 180 measurements are running considerably higher than
those of the FRM monitor. In order to meet Distric t’s needs, the Grimm 180 measurements should reasonably match the measuremen ts of the FRM. While theSan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 41 

### Grimm 180 has earned a FEM certification by EPA, th e District has found that not all FEM certified analyzers work well in the San Joaqui n Valley.

Visalia–Porterville CBSA/MSA

The District does not have any changes scheduled fo r this MSA during this time period.

Bakersfield CBSA/MSA

The District plans to install PAMS Type 3 equipment when space becomes available at an appropriate location in the Arvin area.

Data Submission Requirements

Air Quality and Precision data are submitted to EPA on an ongoing basis once all air quality assurance checks are completed by the Distr ict. Accuracy data is submitted to EPA by CARB as part of their scheduled audits. The District has certified the 2012 Air Quality data.San Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 42 

### Acronyms and Abbreviations

AIRS: Aerometric Information Retrieval System AQI: Air Quality Index AQS: Air Quality System
CARB: California Air Resources Board ARM: Approved Regional Method
BAM: Beta Attenuation Monitor CAA: Clean Air Act
CBSA: Core–Based Statistical Area CCOS: Central California Ozone Study CFR: Code of Federal Regulations CRPAQS: California Regional Particulate Air Qualit y Study
CO: Carbon Monoxide
CO 2 : Carbon Dioxide
CSA: Combined statistical area District: San Joaquin Valley Air Pollution Control District
EBAM: Environmental Beta Attenuation Monitor EPA: U.S. Environmental Protection Agency FEM: Federal Equivalent Method FIPS: Federal information processing standard FR: Federal Register
FRM: Federal Reference Method
GHG: Green House Gases MSA: Metropolitan statistical area NAAQS: National Ambient Air Quality Standard
NCore: National Core NMOC: Non–Methane Organic Compounds 

### NO 2 : Nitrogen Dioxide NOAA: National Oceanic and Atmospheric Administrati on NOx: Oxides of Nitrogen
NO y : Reactive Nitrogen NPS: National Park Service
O 3 : Ozone PAMS: Photochemical Assessment Monitoring Station
Pb: Lead
PM: Particulate Matter
PM2.5: Particulate Matter 2.5 microns or less in d iameter
PM10: Particulate Matter 10 microns or less in dia meter SLAMS: State and Local Air Monitoring Station SJV: San Joaquin Valley SJVAPCD: San Joaquin Valley Air Pollution Control District SMS: Smoke Management System
SO 2 : Sulfur Dioxide SPM: Special Purpose Monitor STN: Speciated Trends Network TEOM: Tapered Element Oscillating Microbalance TSP: Total Suspended Particles Valley: San Joaquin Valley VOC: Volatile Organic CompoundsSan Joaquin Valley Unified Air Pollution Control Di strict June 25, 2013

Annual Air Monitoring Network Plan 43 

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