# Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan

Submitted to EPA Region IX July 1, 2011

Washoe County Health District Air Quality Management Division 1001 East Ninth Street, Suite A-115 P.O. Box 11130 Reno, Nevada 89520-0027

(775) 784-7200 www.washoecounty.us/health

# Table of Contents

Introduction................................................................................................................... ...................1 Purpose....................................................................................................................... ..........1 Public Inspection Process ....................................................................................................1 Agency Contacts ............................................................................................................... ...1 Overview of Network Operation .....................................................................................................2 Network Design ................................................................................................................ ...2 Minimum Monitoring Requirements ...................................................................................4 Network Modifications Completed in 2010 ........................................................................6 Additional Modificatio ns Completed in 2010 .....................................................................7 Network Modifications Proposed for 2011-2012 ................................................................8 Additional Modifications Proposed for 2011-2012 .............................................................8 Review of Changes to PM 2.5 

### Monitoring Network .............................................................9 Data Submission Requirements ...........................................................................................9 Detailed Site Information...................................................................................................... .........10 Galletti...................................................................................................................... ..........10 Incline ....................................................................................................................... .........13 Lemmon Valley ................................................................................................................. 16 Plumb-Kit..................................................................................................................... ......19 Reno3 ......................................................................................................................... ........22 South Reno.................................................................................................................... .....29 Sparks........................................................................................................................ .........32 Toll.......................................................................................................................... ...........36

Tables......................................................................................................................... ..................... ii Figures........................................................................................................................ ..................... ii Acronyms and Abbreviations ..................................................................................................... ... iii

i

# Tables

1. Ambient Air Monitoring Sites and Parameters Monitored..................................................3 2. Minimum Monitoring Requirements for O 3 

### ........................................................................4 3. Minimum Monitoring Requirements for PM 2.5 

### ...................................................................4 4. Minimum Monitoring Requirements for PM 10 

### ....................................................................5 5. Minimum Monitoring Requirements for NO 2 

### .....................................................................5 6. Minimum Monitoring Requirements for CO.......................................................................5



# Figures

1. Washoe County AQMD Ambient Air Monitoring Sites .....................................................2 2. Galletti Monitoring Station................................................................................................10 3. Galletti PM 10 

### Monitoring Station ......................................................................................10 4. Galletti Monitoring Site Vicinity Map...............................................................................11 5. Galletti Monitoring Site Vicinity Aerial............................................................................11 6. Incline Monitoring Station.................................................................................................13 7. Incline Monitoring Site Vicinity Map................................................................................14 8. Incline Monitoring Site Vicinity Aerial.............................................................................14 9. Lemmon Valley Monitoring Station..................................................................................16 10. Lemmon Valley Monitoring Site Vicinity Map.................................................................17 11. Lemmon Valley Monitoring Site Vicinity Aerial..............................................................17 12. Plumb-Kit Monitoring Station ...........................................................................................19 13. Plumb-Kit Monitoring Site Vicinity Map..........................................................................20 14. Plumb-Kit Monitoring Site Vicinity Aerial .......................................................................20 15. Reno3 Monitoring Station..................................................................................................22 16. Reno3 Monitoring Site Vicinity Map ................................................................................23 17. Reno3 Monitoring Site Vicinity Aerial..............................................................................23 18. South Reno Monitoring Station .........................................................................................29 19. South Reno Monitoring Site Vicinity Map........................................................................30 20. South Reno Monitoring Site Vicinity Aerial .....................................................................30 21. Sparks Monitoring Station .................................................................................................32 22. Sparks Monitoring Site Vicinity Map................................................................................33 23. Sparks Monitoring Site Vicinity Aerial .............................................................................33 24. Toll Monitoring Station .....................................................................................................36 25. Toll Monitoring Site Vicinity Map....................................................................................37 26. Toll Monitoring Site Vicinity Aerial .................................................................................37

ii

### iii 

# Acronyms and Abbreviations

AADT Annual Average Daily Traffic Count AQI Air Quality Index AQMD Washoe County Health District - Air Qualit y Management Division AQS Air Quality System ARM Approved Regional Method ATR Automatic Traffic Recorder BAM Beta Attenuation Monitor CARB California Air Resources Board CBSA Core-Based Statistical Area CFR Code of Federal Regulations CMSA Consolidated Metropolitan Statistical Area CO Carbon Monoxide CSA Combined Statistical Area DMV Department of Motor Vehicles DSL Digital Subscriber Line EPA U.S. Environmental Protection Agency ESC Environmental Systems Corporation FEM Federal Equivalent Method FRM Federal Reference Method GFC Gas Filter Correlation MSA Metropolitan Statistical Area NAAQS National Ambient Air Quality Standards NAMS National Air Monitoring Station NCore National Core multipollutant monitoring station NDOT Nevada Department of Transportation NO 2 

### Nitrogen Dioxide NO y 

### Reactive Oxides of Nitrogen O 3 

### Ozone PAMS Photochemical Assessment Monitoring Station PM 2.5 

### Particulate Matter less than or equa l to 2.5 microns in aerodynamic diameter PM 10 

### Particulate Matter less than or equa l to 10 microns in aerodynamic diameter PM coarse 

### PM 10 

### minus PM 2.5 

### ReTRAC Reno Transporta tion Rail Access Corridor RTI Research Triangle Institute SASS Speciation Air Sampling System SIP State Implementation Plan SLAMS State and Local Air Monitoring Station SO 2 

### Sulfur Dioxide SPM Special Purpose Monitoring SR State Route STN Speciation Trends Network TAPI Teledyne Advanced Pollution Instrumentation, Inc.

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 1 

# Introduction

Purpose

The U.S. Environmental Protection Agency (EPA ) finalized amendments to the ambient air monitoring regulations on October 17, 2006. 1 

### The amendments revise the technical requirements for certain types of ambient air m onitoring sites, add provisions for monitoring of PM coarse 

### , and reduce certain monitoring requirements fo r criteria pollutants. Monitoring agencies are required to submit annual monitoring network pl ans, conduct network assessments every years, perform quality assurance activities, and in certain instances, establish NCore sites by January five

1, 2011.

This plan was prepared and submitted as part of the fulfillment to these new regulations. It represents the Washoe County H ealth District - Air Quality Ma nagement Division’s (AQMD) ambient air monitoring program activities completed in 2010 and proposed network modifications for 2011-2012.

Public Inspection Process

This monitoring network plan was available fo r public inspection from June 1 to June 30, 2011 at the AQMD website ( www.washoecounty.us/health ). A hardcopy of the plan was also available at the AQMD office. Public commen ts received during the public inspection period were submitted along with this plan to EPA Region IX.

Agency Contacts

For information or questions regarding the 2011 Ambient Air Monitoring Network Plan, please contact the following individuals of the AQMD.

Kevin Dick, Division Director (775) 784-7213, or kdick@washoecounty.us

Duane Sikorski, Air Quality Supervisor (775) 784-7206, or dsikorski@washoecounty.us

Craig Petersen, Senior Air Quality Specialist (775) 784- 7233, or cpetersen@washoecounty.us

Julie Hunter, Air Qu ality Specialist II (775) 784-7210, or jdhunter@washoecounty.us

Allan Tobey, Air Quality Specialist I (775) 784-7221, or atobey@washoecounty.us

1 71 FR 61236-61328.

# Overview of Network Operation

Network Design

The AQMD operated eight (8) ambient air mon itoring sites in 2010 (Figure 1). The red boundary delineates Hydrographic Area 87 (HA 87) as defined by the State of Nevada Division of Water Resources and is currently designated as “serious” non-attainment for the 24-hour PM 10 

### NAAQS and “attainment/maintenan ce” for the 8-hour CO NAAQS. 2

, 3 

### Washoe Cou classified as “attainment” or “unclassifiable/att ainment” for all other pollutants and averaging times. nty is

Figure 1 Washoe County AQMD Ambient Air Monitoring Sites

2 40 CFR 81.329.



### Washoe County Air Quality Management Division 3 In July 2009, the AQMD submitted a SIP revision to EPA requesting redesignation of HA 87 to an attainment/maintenance area for the 24-hour PM 10 NAAQS. On April 19, 2011, EPA published a final rule (76 FR 21807) finding that 1) the Truckee Meadows failed to attain the NAAQS by the applicable date and 2) the Truckee Meadows is currently attaining the NAAQS based on recent monitoring data (2007-2009). The rule does not change the “Serious” non-attainment designation.



### 2011 Ambient Air Monitoring Network Plan 2

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 3 Table 1 lists the parameters monitored in 2010 sorted by network type and site.

Table 1 Ambient Air Monitoring Sites and Parameters Monitored

Network Type Site

SLAMSO3CONO2NOySO2PM10(manual)PM10(continuous)PM2.5(manual)PM2.5(continuous)PMcoarse(manual)PMcoarse(continuous)PM2.5SpeciationMeteorology



### Galletti    Incline  Lemmon Valley   Plumb-Kit  

Reno3            South Reno     Sparks    

Toll    

NCore 4



### Reno3            

Speciation

Trends Reno3 

Special Purpose Reno3   Sparks 

Notes: Meteorology for SLAMS network includ es ambient temperature, wind speed, and wind direction. Meteorology for NCore netw ork includes ambient temperature, wind speed, wind direction, barometric pressure , relative humidity, liquid precipitation, and solar radiation.

Data from the continuous PM 2.5 

### and PM 10 

### Special Purpose monitors are used for short term air quality forecasts and are not submitted to AQS as data for record.

4 NCore monitoring began December 2010.

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 4 Minimum Monitoring Requirements

The AQMD’s ambient air monitoring network m eets the minimum monito ring requirements for all criteria pollutants pursuant to 40 CFR 58, Ap pendix D. Tables 2 through 6 provide pollutant specific monitoring requirements. The design va lues are based on ambient air monitoring data for single (2010 for NO 2 

### and CO) or multiple (2008-2010 for O 3 

### , PM 2.5 

### , and PM 10 

### ) years. Additional pollutant specific design value data may be found in the “Washoe County, Nevada, Air Quality Trends Report, 2001-2010” . The 2009 population data are from the Nevada State Demographer’s Office. 5



### Table 2 Minimum Monitoring Requirements for O 3


### Design Value (ppm) Number of Monitors

MSA County Population 8-hour Minimum Required Active NeededRenoSparks Washoe 416,632 0.070 6 

### 2 6 0 Monitors required for SI P or Maintenance Plan: 2

Table 3 Minimum Monitoring Requirements for PM 2.5


### Design Value (  g/m 3 

### ) Number of Monitors

MSA County Population 24-hour Annual Minimum Required Active NeededRenoSparks Washoe 416,632 37 6 

### 8.1 6 

### 2 3 0 Monitors required for SI P or Maintenance Plan: 0

5 Nevada State Demographer’s Office, “N evada County Population Estimates, July 1, 1986 to July 1, 2009, Includes Cities and Towns”, Page 20.
6 Ambient air monitoring data from June/July 2008 were influenced by wildfires in Northern California. An exceptional events request was submitted to EPA Region IX in October 2009. The design values for O 3 and PM 2.5 include these data until EPA determines concurrence with the request.

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 5 Table 4 Minimum Monitoring Requirements for PM 10


### Design Value (expected number

of exceedances) Number of Monitors

MSA County Population 24-hour Minimum Required Active NeededRenoSparks Washoe 416,632 0.0 4 8 0 Monitors required for SI P or Maintenance Plan: 4

Table 5 Minimum Monitoring Requirements for NO 2


### Design Value (ppm) Number of Monitors

MSA County Population Annual Minimum Required Active NeededRenoSparks Washoe 416,632 0.016 0 1 0 Monitors required for SI P or Maintenance Plan: 0 Monitors required for PAMS: n/a

Table 6 Minimum Monitoring Requirements for CO

Design Value (ppm) Number of Monitors

MSA County Population 1-hour 8-hour Minimum Required Active NeededRenoSparks Washoe 416,632 3.1 2.6 2 6 0 Monitors required for SI P or Maintenance Plan: 2

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 6 Network Modifications Completed in 2010

The following modifications to the ambient ai r monitoring network were completed in 2010.

SLAMS : O 3 

### , CO (Reno3)

 Took existing instruments offline and replaced with new NCore instruments listed below. Meteorology (Galletti, South Reno, Sparks, Toll)

 Installed new YSI 700 thermolinear el ement ambient temperature sensor. CO (South Reno, Sparks, Lemmon Valley)

 Replaced existing CO instruments with new TAPI 300EU CO instruments.

NCore : SO 2 

### (Reno3)

 Installed new TAPI 100EU trace level SO 2 

### monitor and began submitting data for record to AQS in December 2010. NO y 

### (Reno3)

 Installed new TAPI 200EU trace level NO y 

### monitor and began submitting data for record to AQS in December 2010. CO (Reno3)

 Installed new TAPI 300EU trace level CO monitor and began submitting data for record to AQS in December 2010. O 3 

### (Reno3)

 Installed new TAPI 400E O 3 

### monitor. O 3 

### , CO, NO y, 

### SO 2 

### (Reno3)

 Installed gas dilution system consisting of: 1) New Environics 6103 multi-gas calibrator/O 3 

### transfer standard, and 2) new TAPI 701H high performance zero air system. PM 2.5 

### (Reno3)

 Replaced existing Met One BAM 1020 PM 2.5 

### monitor with a new Met One BAM 1020 FEM PM 2.5 

### monitor. This monitor will be c onfigured with the Met One BAM 1020 FEM PM 10 

### monitor listed below for continuous PM coarse 

### measurement. Continuous PM 2.5 

### and PM coarse 

### data for record began submission to AQS in December 2010. PM 10 

### (Reno3)

 Replace existing Met One BAM 1020 FEM PM 10 

### monitor with a new Met One BAM 1020 FEM PM 10 

### monitor. This monitor will be configured with the Met One BAM 1020 FEM PM 2.5 

### monitor listed above for continuous PM coarse 

### measurement. Continuous PM 10 

### and PM coarse 

### data for record began submission to AQS in December 2 010.

Speciation Trends : All other pollutants and monitoring sites

 No modifications completed.

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 7 Special Purpose Monitor : PM 2.5 

### (Reno3)

 Replaced existing monitor as indicated in the NCore section above. PM 10 

### (Reno3)

 Replaced existing monitor as indicated in the NCore section above.

Additional Modifications Completed in 2010

The following additional modifications were completed in 2010.

SLAMS : Shelter temperature (Galletti, Incline, Lemmon Valley, South Reno, Sparks, Toll)

 Installed new T o 

### Sentry 140-100HVB shelte r temperature sensor.

NCore : All continuous monitors (Reno3)

 Installed new ESC 8832 data acquisition system. Shelter temperature (Reno3)

 Installed new T o 

### Sentry 140-100HVB shelte r temperature sensor. Data polling (Reno3)

 Installed DSL broadband communications.

Speciation Trends and Special Purpose Monitor Networks : All other pollutants and monitoring sites

 No modifications completed.

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 8 Network Modifications Proposed for 2011-2012

The following modifications to the ambient air monitoring network are proposed for 2011-2012.

SLAMS: All pollutants and me teorology (Galletti)

 Relocate Galletti PM 10 

### monitor to the top of the Gallet ti shelter. The reason for moving this site is because AQMD is on leased Neva da DMV property and has been requested to relocate the PM 10 

### monitor due to a parking lot remodel.

 Relocate entire Galletti monitoring site appr oximately 45 meters to the north of its current location. The reason for relocating this si te is to move the shelter away from trees that are less than 5 meters from the shelter.

NCore: Meteorology (Reno3)

 Remove solar radiation sensor from South Reno and install at Reno3.

 Install new Vaisala WXT520 weather transm itter measuring ambient temperature, wind speed, wind direction, barometric pressure, relative humidity, and liquid precipitation.

Special Purpose Monitor: PM 2.5 

### (Sparks)

 Install new Met One BAM 1020 FEM PM 2.5 

### monitor. Continuous PM 2.5 

### data will be used for short term air quality forecasts and not be submitted to AQS as data for record. PM 10 

### (Sparks)

 Install new Met One BAM 1020 FEM PM 10 

### monitor. Continuous PM 10 

### data will be used for short term air quality forecasts and will not be submitted to AQS as data for record.

Additional Modifications Proposed for 2011-2012

The following additional modifications are proposed for 2011-2012.

SLAMS: Shelter roofs (Toll, South Reno, Plumb-Kit)

 Install Trex decking and safety railings on top of shelters. Data polling (Toll, South Reno, Galletti, Lemmon Valley, Sparks)

 Install wireless communication instrumentation.

 Remove all phone lines and modems.

NCore: All pollutants

 No modifications proposed.

Speciation Trends and Special Purpose Monitor Networks : All other pollutants and monitoring sites

 No modifications proposed.

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 9 Review of Changes to PM 2.5 

### Monitoring Network

The geographic area of Washoe County is curre ntly designated as either Attainment or Attainment/Unclassifiable fo r the 24-hour and annual PM 2.5 

### NAAQS. Although the current PM 2.5 

### design value (37  g/m 3 

### ) violates the 24-hour NAAQS, am bient air monitoring data from June/July 2008 were influenced by wildfires in Northern California. An exceptional events request was submitted to EPA Region IX in October 2009. The PM 2.5 

### design value includes these data until EPA determines concurrence with the request.

In the event that a revi ew of changes to the PM 2.5 

### monitoring network is required, the annual network plan and five year network assessment w ould be used to provide for this review. No changes are proposed to the PM 2.5 

### monitoring network for 2011-2012.

Data Submission Requirements

Precision and Accuracy Reports for 2010 were submitted to AQS for the: 1 st 

### quarter in June 2010, 2 nd 

### quarter in August 2010, 3 rd 

### quarter in October 2010, and 4 th 

### quarter in March 2011.

Annual Data Certification for 2010 was submitted to EPA on April 29, 2011.

# Detailed Site Information

Galletti

It is located southeast of the Interstate 80 - US Highway 395 interchange in a commercial/industrial area. The Ga lletti site, which monitors PM 10 

### and CO, is heavily impacted by on-road vehicle emissions from interstate high ways. The monitoring objective is to determine highest concentrations of PM 10 

### and is population oriented for CO.

Site Name: Galletti

AQS ID: 32-031-0022 Geographical coordinates: CO: 39 o 31.920’N, 119 o 47.099’W PM 10 : 39 o 31.947’N, 119 o 46.973’W Location: CO: South end of NDOT equipment yard. PM 10 : Northwest corner of Nevada DMV parking lot. Street address: 305 Galletti Way Reno, NV 89431 County: Washoe Distance to road: CO: 15 meters to Kietzke Lane; 117 meters to US 395 PM 10 : 68 meters Kietzke Lane; 308 meters to US 395

Traffic count: 15,166 AADT (2007-2009) (NDOT ATR 0312210 - Kietzke Lane, 0.15 miles south of Galletti Way) 150,667 AADT (2007-2009) (NDOT ATR 0310461 – IR580 (US 395), ‘Exit 67’ 0.2 miles north of Glendale Ave.) Groundcover: Paved Representative area: Reno-Sparks MSA



### Figure 2 Figure 3 Galletti Monitoring Station Galletti PM 10 

### Monitoring Station

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 10

### Figure 4 Galletti Monitor ing Site Vicinity Map

Figure 5 Galletti Monitoring Site Vicinity Aerial

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 11

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 12 Galletti (continued)

CO PM 10

Monitor objective Population Oriented Highest concentration Monitor classification SLAMS SLAMS Spatial scale Middle Neighborhood
Sampling method TAPI 300E Andersen 1200 Hi-Vol
Analysis method GFC Weighed by AQMD lab Start date August 1988 August 1988 Operation schedule Continuous 1:6 Sampling season All year All year Probe height 4.0 meters 3.0 meters
Distance: from supporting structure 1.2 meters 1.5 meters
from obstructions on roof n/a n/a
from obstructions not on roof 82 meters 39 meters
from trees 4.6 meters* 70 meters
to furnace or incinerator flue n/a n/a
between collocated monitors n/a n/a
Unrestricted airflow 360 degrees 360 degrees
Probe material Teflon n/a
Residence time 13 seconds n/a Proposed modifications within the next 18 months? See page 8 See page 8 Is the monitor suitable for comparison against the annual PM 2.5 NAAQS? n/a n/a
Frequency of: flow rate verification for manual samplers audit (PM) n/a Every 1:6 run and quarterly flow rate verification for automated analyzers audit (PM) n/a n/a
one-point QC check (gaseous) Bi-weekly (3 point) n/a
Last:

annual performance evaluation (gaseous) 03-17-10 06-25-10 09-10-10 12-03-10 n/a

two semi-annual flow rate audits (PM) n/a 02-23-10 06-08-10 09-13-10 10-14-10

* Trees are not of sufficient height and leaf canopy dens ity to interfere with the normal unrestricted airflow around the monitoring path. At least 90 percent of the monitoring path is at least 10 meters from the drip line of the trees.

### Incline

This site is located at the Wa shoe County Service Center at 855 Alder Ave nue and is outside HA 87. It is located in a residential/commerc ial neighborhood, where the monitoring objective is population oriented for O 3 

### . The AQMD had monitored PM 10 

### (1993-2002) and CO (1993-2002) and currently monitors for O 3 

### . This site was temporarily closed from December 2005 to May 2008 for remodeling. By multi-agency cooperativ e agreement, the California Air Resources Board (CARB) monitored PM 2.5 

### (1999-2002) and NO 2 

### (1999-2002). Since May 2008 this site only monitors for O 3


### .

Site Name: Incline AQS ID: 32-031-2002 Geographical coordinates: 39 o 15.025’N, 119 o 57.404’W
Location: Inside northeast corner of Washoe County office building. Street address: 855 Alder Avenue Incline Village, NV 89451 County: Washoe Distance to road: 57 meters to Tahoe Boulevard and 53 meters to Alder Avenue. Traffic count: 4,367 AADT (2007-2009) (NDOT ATR 0310756 - Lakeshore Blvd, 100 feet east of Village Blvd) Groundcover: Paved / Vegetated Representative area: Reno-Sparks MSA



### Figure 6 Incline Monitoring Station

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 13

### Figure 7 Incline Monitoring Site Vicinity Map

Figure 8 Incline Monitoring Site Vicinity Aerial

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 14

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 15 Incline (continued)

O 3

Monitor objective Population Oriented Monitor classification SLAMS Spatial scale Neighborhood Sampling method API 400A Analysis method UV Photometry
Start date June 1993 Operation schedule Continuous Sampling season All year Probe height 4.6 meters
Distance: from supporting structure 1.1 meters
from obstructions on roof n/a
from obstructions not on roof 41 meters
from trees 5.2 meters*
to furnace or incinerator flue 12.2 meters
between collocated monitors n/a
Unrestricted airflow 360 degrees
Probe material Teflon
Residence time 14 seconds Proposed modifications within the next 18 months? none Is the monitor suitable for comparison against the annual PM 2.5 NAAQS? n/a
Frequency of: flow rate verification for manual samplers audit (PM) n/a

flow rate verification for automated analyzers audit (PM) n/a
one-point QC check (gaseous) Bi-weekly (3 point)
Last:

annual performance evaluation (gaseous) 03-18-10 06-29-10 09-27-10 12-16-10 two semi-annual flow rate audits (PM) n/a

* At least 90 percent of the monitoring path is at least 10 meters from the drip line of the trees.

### Lemmon Valley

Located at the Joe Mitchell Community Center at 325 Patrician Drive, this site is outside HA 87. It is in a transitional area among residences, park s, and open fields. The pollutants monitored are O 3 

### and CO. The monitoring objective is population oriented.

Site name: Lemmon Valley

AQS ID: 32-031-2009 Geographical coordinates: 39° 38.716’N, 119° 50.401’W
Location: Inside northwest corner of Joe Mitchell Community Center. Street address: 325 W. Patrician Drive Reno, NV 89506 County: Washoe
Distance to road: 59 meters to Patrician Drive. Traffic count: 1,013 AADT (2007-2009) (NDOT ATR 0310926 - Patrician Drive, 150 feet west of Lemmon Drive) Groundcover: Paved / Vegetated Representative area: Reno-Sparks MSA



### Figure 9 Lemmon Valley Monitoring Station

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 16

### Figure 10 Lemmon Valley Monitoring Site Vicinity Map

Figure 11 Lemmon Valley Monitoring Site Vicinity Aerial

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 17

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 18 Lemmon Valley (continued)

O 3 CO

Monitor objective Population Oriented Population Oriented Monitor classification SLAMS SLAMS Spatial scale Urban Urban Sampling method API 400E TAPI 300EU Analysis method UV Photometry GFC
Start date January 1987 January 1987 Operation schedule Continuous Continuous Sampling season All year All year Probe height 5.5 meters 5.5 meters
Distance: from supporting structure 2.0 meters 2.0 meters
from obstructions on roof n/a n/a
from obstructions not on roof n/a n/a
from trees 21 meters 21 meters
to furnace or incinerator flue 9.1 meters 9.1 meters
between collocated monitors n/a n/a
Unrestricted airflow 360 degrees 360 degrees
Probe material Teflon Teflon
Residence time 9 seconds 9 seconds Proposed modifications within the next 18 months? none none Is the monitor suitable for comparison against the annual PM 2.5 NAAQS? n/a n/a
Frequency of: flow rate verification for manual samplers audit (PM) n/a n/a

flow rate verification for automated analyzers audit (PM) n/a n/a
one-point QC check (gaseous) Bi-weekly (3 point) Bi-weekly (3 point)
Last:

annual performance evaluation (gaseous) 03-24-10 06-22-10 09-21-10 12-13-10 03-24-10 06-22-10 09-21-10 12-13-10 two semi-annual flow rate audits (PM) n/a n/a

### Plumb-Kit

The Plumb-Kit site is located on the northeast corn er of Plumb Lane and Kietzke Lane. The site is surrounded by both residential and commercia l properties as well as a school. The only pollutant measured at this site is PM 10 

### . The monitoring objective is population oriented for PM 10


### .

Site name: Plumb-Kit AQS ID: 32-031-0030 Geographical coordinates: 39 o 30.381’N, 119 o 47.314’W
Location: Northeast corner of Pl umb and Kietzke Lanes. Street address: 891 East Plumb Lane Reno, NV 89502 County: Washoe Distance to road: 36 meters to Kietzke Lane, 44 meters to Plumb Lane, and 12.0 meters to the westbound Plumb Lane to northbound Kietzke Lane roadway. Traffic count: 32,333 AADT (2007-2009) (NDOT ATR 0310192 - East Plumb Lane, 590 feet east of Kietzke Lane) Groundcover: Gravel Representative area: Reno-Sparks MSA



### Figure 12 Plumb-Kit Monitoring Station

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 19

### Figure 13 Plumb-Kit Monitoring Site Vicinity Map

Figure 14 Plumb-Kit Monitoring Site Vicinity Aerial

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 20

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 21 Plumb-Kit (continued)

PM 10

Monitor objective Population Oriented Monitor classification SLAMS Spatial scale Neighborhood
Sampling method Andersen 1200 Hi-Vol
Analysis method Weighed by AQMD lab Start date January 2006 Operation schedule 1:6 Sampling season All year Probe height 4.2 meters
Distance: from supporting structure 1.5 meters
from obstructions on roof n/a
from obstructions not on roof 106 meters
from trees 12.2 meters*
to furnace or incinerator flue n/a
between collocated monitors n/a
Unrestricted airflow 360 degrees
Probe material n/a
Residence time n/a Proposed modifications within the next 18 months? none Is the monitor suitable for comparison against the annual PM 2.5 NAAQS? n/a
Frequency of: flow rate verification for manual samplers audit (PM) Every 1:6 run and quarterly flow rate verification for automated analyzers audit (PM) n/a
one-point QC check (gaseous) n/a
Last: annual performance evaluation (gaseous) n/a

two semi-annual flow rate audits (PM) 02-23-10 06-08-10 09-13-10 10-14-10

* Trees are not of sufficient height and leaf canopy dens ity to interfere with the normal unrestricted airflow around the monitoring path. At least 90 percent of the monitoring path is at least 10 meters from the drip line of the trees.

### Reno3

This downtown site began operation in January 2002 to replace the Reno site. Both a residential neighborhood and a commercial growth area surround this site. As of December 2010 this site became an NCore site. The pollutants measured are PM 10 

### , PM 2.5 

### , PM coarse 

### , O 3 

### , Trace CO, Trace SO 2 

### and Trace NO y 

### , and NO 2 

### . The monitoring objectives follo w those set forth by EPA for an NCore site.

Site name: Reno3 AQS ID: 32-031-0016 Geographical coordinates: 39 o 31.505’N, 119 o 48.463’W
Location: Southwest corner of City of Reno parking lot. Street address: 301A State Street Reno, NV 89501 County: Washoe Distance to road: 38 meters to Mill Street, 13.1 meters to State Street, and 6.7 meters to River Rock. Traffic count: 5,633 AADT (2007-2009) (NDOT ATR 0310862 - Mill Street, 100 feet west of Holcomb Avenue) Groundcover: Paved Representative area: Reno-Sparks MSA



### Figure 15 Reno3 Monitoring Station

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 22

### Figure 16 Reno3 Monitoring Site Vicinity Map

Figure 17 Reno3 Monitoring Site Vicinity Aerial

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 23

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 24 Reno3 (continued)

O 3 CO NO 2

Monitor objective Population Oriented Population Oriented Population Oriented Monitor classification SLAMS/NCore SLAMS/ NCore SLAMS/NCore Spatial scale Neighborhood Neighborhood Neighborhood
Sampling method API 400A/ TAPI 400E Monitor Labs 9830 Thermo 42C
Analysis method UV Photometry GFC Chemiluminescent

Start date November 2001/ December 2010 November 2001 November 2001
Operation schedule Continuous Continuous Continuous Sampling season All year All year All year Probe height 4.6 meters 4.6 meters 4.6 meters
Distance: from supporting structure 1.8 meters 1.8 meters 1.8 meters
from obstructions on roof n/a n/a n/a
from obstructions not on roof 33 meters 33 meters 33 meters
from trees 17.4 meters* 17.4 meters* 17.4 meters*
to furnace or incinerator flue n/a n/a n/a
between collocated monitors n/a n/a n/a
Unrestricted airflow 360 degrees 360 degrees 360 degrees
Probe material Teflon Teflon Teflon
Residence time 7 seconds 7 seconds 12 seconds Proposed modifications within the next 18 months? none none none Is the monitor suitable for comparison against the annual PM 2.5 NAAQS? n/a n/a n/a
Frequency of: flow rate verification for manual samplers audit (PM) n/a n/a n/a

flow rate verification for automated analyzers audit (PM) n/a n/a n/a

one-point QC check (gaseous) Bi-weekly/Weekly (3 point) Bi-weekly (3 point) Bi-weekly/Weekly (4 point) Last:

annual performance evaluation (gaseous) 03-30-10 06-28-10 09-29-10 12-14-10 03-30-10 06-28-10 09-29-10 12-14-10 03-30-10 06-28-10 09-29-10 12-14-10 two semi-annual flow rate audits (PM) n/a n/a n/a

* Trees are not of sufficient height and leaf canopy dens ity to interfere with the normal unrestricted airflow around the monitoring path. At least 90 percent of the monitoring path is at least 10 meters from the drip line of the trees.

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 25 Reno3 (continued)

PM 2.5 ( Designated) PM 2.5 ( Collocated) PM 10 Monitor objective P P P opulation Oriented opulation Oriented opulation Oriented Monitor classificati on SLAMS SLAMS SLAMS Spatial scale N N N eighborhood eighborhood eighborhood Sampling method BGI PQ200 BGI PQ200 BGI PQ200
Analysis m ethod Weighed by AQMD lab Weighed by AQMD lab Weighed by AQMD lab Start date Novem 2001 Novem 2001 Novem 2001 ber ber ber Operation schedu le 1:3 1:3 1:6 Sampling seas on All year All year All year Probe heig ht 4.9 m ters 4.9 m ters 4.9 m ters e e e Di stance: from supporting structure 2.0 rs 2.0 rs 2.0 rs mete mete mete from obstructions on roof n/a n/a n/a
from obstru ctions not on roof 29 meters 28 meters 28 meters
from trees 20 rs 19.0 rs* 19.0 rs* mete mete mete to furnace or incinerator flue n/a n/a n/a
between collocated monitors 1.1 meters 1.1 meters n/a
Unrestricted air flow 360 ees 360 ees 360 ees degr degr degr
Probe material n/a n/a n/a
Residence time n/a n/ a n/ a Proposed modifications within the next 18 months? none none none Is the monitor suitable for comparis on against the ann ual PM 2.5 NAAQS? sites in Region IX sites in Region IX n/ Yes for all current Yes for all current a Frequenc y of:

flow rate verification f or manual samplers audit (PM) Monthly verifications and quarte udits quarte udits quarte udits rly a Monthly verifications and rly a Monthly verifications and rly a flow rate verification f or automated analyzers audit (PM) n/a n/ a n/ a

one- point QC check (gaseous) n n n /a /a /a
La st: annual per formance evaluation (gaseous) n/a n/a n/a

two se mi-annual flow rate audits (PM) 12-09-10 12-09-10 12-09-10 03-23-10 06-23-10 09-22-10 03-23-10 06-23-10 09-22-10 03-23-10 06-23-10 09-22-10

* Trees are not of sufficient height and leaf canopy dens ity to interfere with the normal unrestricted airflow around the monitoring path. At least 90 percent of the monitoring path is at least 10 meters from the drip line of the trees.

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 26 Reno3 (continued)

PM 2.5 Speciation PM 10 BAM PM 2.5 BAM

Monitor objective Trends Network Population Oriented Population Oriented
Monitor classification STN SLAMS SLAMS Spatial scale Neighborhood Neighborhood Neighborhood
Sampling method Met One SASS; URG 3000N Met One BAM 1020 Met One BAM 1020 Analysis method Sent to RTI lab for analysis Beta Attenuation Beta Attenuation

Start date November 2001 March 2005 November 2001 Operation schedule 1:3 Continuous Continuous Sampling season All year All year All year
Probe height SASS: 4.7 meters URG: 5.0 meters 4.0 meters 4.5 meters

Distance:
from supporting structure SASS: 1.8 meters URG: 2.1 meters 2.4 meters 1.6 meters

from obstructions on roof n/a n/a n/a
from obstructions not on roof 30 meters 32 meters 31 meters
from trees 20 meters 20 meters 20 meters
to furnace or incinerator flue n/a n/a n/a
between collocated monitors n/a n/a n/a
Unrestricted airflow 360 degrees 360 degrees 360 degrees
Probe material n/a n/a n/a
Residence time n/a n/a n/a Proposed modifications within the next 18 months? none none none
Is the monitor suitable for comparison against the annual PM 2.5 NAAQS? Yes for all current sites in Region IX n/a No, AQI use only

Frequency of: flow rate verification for manual samplers audit (PM) Monthly verifications and quarterly audits n/a n/a

flow rate verification for automated analyzers audit (PM) n/a Bi-weekly verifications and quarterly audits Bi-weekly verifications and quarterly audits
one-point QC check (gaseous) n/a n/a n/a
Last: annual performance evaluation (gaseous) n/a n/a n/a

two semi-annual flow rate audits (PM) 03-19-10 06-29-10 09-27-10 12-27-10 03-22-10 05-25-10 09-22-10 10-10-10 03-22-10 05-25-10 09-22-10 10-10-10

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 27 Reno3 (continued)

PM 10 BAM 7 PM 2.5 BAM 7 PM coarse BAM 7

Monitor objective Population Oriented Population Oriented Population Oriented
Monitor classification NCore NCore NCore Spatial scale Neighborhood Neighborhood Neighborhood

Sampling method Met One BAM 1020 Met One BAM 1020 Met One BAM 1020 Coarse Pair
Analysis method Beta Attenuation Beta Attenuation Calculated by subtraction Start date December 2010 December 2010 December 2010 Operation schedule Continuous Continuous Continuous Sampling season All year All year All year Probe height 4.0 meters 4.0 meters 4.0 meters
Distance: from supporting structure 2.4 meters 2.4 meters 2.4 meters
from obstructions on roof n/a n/a n/a
from obstructions not on roof 32 meters 32 meters 32 meters
from trees 20 meters 20 meters 20 meters
to furnace or incinerator flue n/a n/a n/a
between collocated monitors n/a n/a n/a
Unrestricted airflow 360 degrees 360 degrees 360 degrees
Probe material n/a n/a n/a
Residence time n/a n/a n/a Proposed modifications within the next 18 months? none none none
Is the monitor suitable for comparison against the annual PM 2.5 NAAQS? n/a Yes for all current sites in Region IX n/a

Frequency of: flow rate verification for manual samplers audit (PM) n/a n/a n/a

flow rate verification for automated analyzers audit (PM) Bi-weekly verifications and quarterly audits Bi-weekly verifications and quarterly audits Bi-weekly verifications and quarterly audits
one-point QC check (gaseous) n/a n/a n/a
Last: annual performance evaluation (gaseous) n/a n/a n/a

two semi-annual flow rate audits (PM) n/a n/a n/a

7 BAM Data for record began December 2010

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 28 Reno3 (continued)
Trace CO Trace SO 2 Trace NO y Monitor objective Population Oriented Population Oriented Population Oriented Monitor classification NCore NCore NCore Spatial scale Neighborhood Neighborhood Neighborhood Sampling method TAPI 300EU TAPI 400EU TAPI 200EU Analysis method GFC UV Photometry Chemiluminescent
Start date December 2010 December 2010 December 2010 Operation schedule Continuous Continuous Continuous Sampling season All year All year All year Probe height 4.6 meters 4.6 meters 4.6 meters
Distance: from supporting structure 1.8 meters 1.8 meters 1.8 meters
from obstructions on roof n/a n/a n/a
from obstructions not on roof 33 meters 33 meters 33 meters
from trees 17.4 meters* 17.4 meters* 17.4 meters*
to furnace or incinerator flue n/a n/a n/a
between collocated monitors n/a n/a n/a
Unrestricted airflow 360 degrees 360 degrees 360 degrees
Probe material Teflon Teflon Teflon
Residence time 6 seconds 6 seconds 8 seconds Proposed modifications within the next 18 months? none none none Is the monitor suitable for comparison against the annual PM 2.5 NAAQS? n/a n/a n/a
Frequency of: flow rate verification for manual samplers audit (PM) n/a n/a n/a

flow rate verification for automated analyzers audit (PM) n/a n/a n/a

one-point QC check (gaseous) Weekly Weekly Weekly (4 point w/ GPT) Last: annual performance evaluation (gaseous) n/a n/a n/a

two semi-annual flow rate audits (PM) n/a n/a n/a

### South Reno

Located on the NV Energy property at 4110 Delucchi Lane, this site is in a transitional environment between open fields and office bu ildings. The site’s monitoring objective is population oriented for CO, O 3 

### and PM 10


### .

Site name: South Reno

AQS ID: 32-031-0020 Geographical coordinates: 39 o 28.153’N, 119 o 46.521’W
Location: Northeast corner of NV Energy campus. Street address: 4110 DeLucchi Lane Reno, NV 89502 County: Washoe
Distance to road: 37 meters to DeLucchi Lane. Traffic count: 6,200 AADT (2007-2009) (NDOT ATR 0310690 - Neil Road, 515 feet north of DeLucchi Lane) Groundcover: Gravel / Dirt / Vegetated Representative area: Reno-Sparks MSA



### Figure 18 South Reno Monitoring Station

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 29

### Figure 19 South Reno Monitoring Site Vicinity Map

Figure 20 South Reno Monitoring Site Vicinity Aerial

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 30

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 31 South Reno (continued)

O 3 CO PM 10

Monitor objective Population Oriented Population Oriented Population Oriented Monitor classification SLAMS SLAMS SLAMS Spatial scale Neighborhood Neighborhood Neighborhood
Sampling method TAPI 400E TAPI 300EU Andersen 1200 Hi-Vol
Analysis method UV Photometry GFC Weighed by AQMD lab Start date January 1988 January 1988 January 1988 Operation schedule Continuous Continuous 1:6 Sampling season All year All year All year Probe height 4.0 meters 4.0 meters 3.4 meters
Distance: from supporting structure 1.2 meters 1.2 meters 1.5 meters
from obstructions on roof n/a n/a n/a
from obstructions not on roof 68 meters 68 meters 68 meters
from trees 29 meters 29 meters 29 meters
to furnace or incinerator flue n/a n/a n/a
between collocated monitors n/a n/a n/a
Unrestricted airflow 360 degrees 360 degrees 360 degrees
Probe material Teflon Teflon n/a
Residence time 9 seconds 9 seconds n/a Proposed modifications within the next 18 months? none none none Is the monitor suitable for comparison against the annual PM 2.5 NAAQS? n/a n/a n/a
Frequency of: flow rate verification for manual samplers audit (PM) n/a n/a Every 1:6 run and quarterly flow rate verification for automated analyzers audit (PM) n/a n/a n/a
one-point QC check (gaseous) Bi-weekly (3 point) Bi-weekly (3 point) n/a
Last:

annual performance evaluation (gaseous) 03-16-10 06-24-10 09-09-10 12-07-10 03-16-10 06-24-10 09-09-10 12-07-10 n/a

two semi-annual flow rate audits (PM) n/a n/a 02-22-10 06-08-10 09-13-10 10-14-10

### Sparks

The Sparks site is located on US Postal Servi ce property at 750 Fourth Street. The site is surrounded by commercial property, a residentia l neighborhood and is adjacent to Dilworth Middle School. In 2007 the Sparks site was moved approximately 55 meters north of its previous location, due to tree grow th affecting siting criteria. Th e site has a population oriented monitoring objective for the monitoring of O 3 

### and PM 10 

### and highest concentration for CO.

Site name: Sparks

AQS ID: 32-031-1005 Geographical coordinates: 39 o 32.455’N, 119 o 44.806’W
Location: East end of US Postal Service back parking lot. Street address: 750 4 th Street Sparks, NV 89431 County: Washoe
Distance to road: 50 meters to Prater Way and 103 meters to 4 th Street. Traffic count: 16,666 AADT (2007-2009) (NDOT ATR 0310497 - Prater Way, 100 feet east of Pyramid Way) Groundcover: Paved / Vegetated / Decomposed Granite Representative area: Reno-Sparks MSA



### Figure 21 Sparks Monitoring Station

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 32

### Figure 22 Sparks Monitoring Site Vicinity Map

Figure 23 Sparks Monitoring Site Vicinity Aerial

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 33

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 34 Sparks (continued)

O 3 CO

Monitor objective Population Oriented Highest Concentration Monitor classification SLAMS SLAMS Spatial scale Neighborhood Neighborhood Sampling method API 400E TAPI 300EU Analysis method UV Photometry GFC
Start date January 1979 January 1980 Operation schedule Continuous Continuous Sampling season All year All year Probe height 4.6 meters 4.6 meters
Distance: from supporting structure 1.7 meters 1.7 meters
from obstructions on roof n/a n/a
from obstructions not on roof 29 meters 29 meters
from trees 26 meters 26 meters
to furnace or incinerator flue n/a n/a
between collocated monitors n/a n/a
Unrestricted airflow 360 degrees 360 degrees
Probe material Teflon Teflon
Residence time 9 seconds 9 seconds Proposed modifications within the next 18 months? none none Is the monitor suitable for comparison against the annual PM 2.5 NAAQS? n/a n/a
Frequency of: flow rate verification for manual samplers audit (PM) n/a n/a

flow rate verification for automated analyzers audit (PM) n/a n/a
one-point QC check (gaseous) Bi-weekly (3 point) Bi-weekly (3 point)
Last:

annual performance evaluation (gaseous) 03-23-10 06-30-10 09-22-10 12-10-10 03-23-10 06-30-10 09-22-10 12-10-10 two semi-annual flow rate audits (PM) n/a n/a

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 35 Sparks (continued)

PM 10 ( Designated) PM d) 10 (Collocate PM 10 BAM
Monitor objective P P P O opulation Oriented opulation Oriented opulation riented Monitor classificati on SLAMS SLAMS SPM Spatial scale Neighborhood Neighborhood Neighborhood
Sampling method And 00 And 00 Sibata BAM-102 ersen 12 Hi-Vol ersen 12 Hi-Vol
Analysis m ethod Weighed by AQMD lab Weighed by AQMD lab Beta attenuation

Start date Ap 88 Ap 88 N 8 ril 19 ril 19 ovember 198 Operation schedu le C 1:6 1:6 ontinuous Sampling seas on All year All year All year Probe heig ht 4.4 m ters 3.5 m ters 5.0 m ters e e e Di stance: from supporting structure 1.5 rs 1.5 rs 2.1 rs mete mete mete from obstructions on roof n/a n/a n/a
from obstru ctions not on roof 27 meters 27 meters 29 meters
from trees 28 rs 26 rs 26 rs mete mete mete to furnace or incinerator flue n/a n/a n/a
between collocated monitors 2.7 meters 2.7 meters n/a
Unrestricted air flow 360 ees 360 ees 360 ees degr degr degr
Probe material n/a n/a n/a
Residence time n/a n/ a n/ a Proposed modifications within the next 18 months? none none See page 8 Is the monitor suitable for comparis on against the ann ual PM 2.5 NAAQS? n/ a n/ a n/ a

Fr equency of: flow rate verification f or manual samplers audit (PM) Ever nd qu ly Ever nd qu ly y 1:6 run a

arter y 1:6 run a
arter n/a

flow rate verification f or automated analyzers audit (PM) n/a n/ a Bi-weekly and quarte udits rly a

one- point QC check (gaseous) n n n /a /a /a
La st: annual per formance evaluation (gaseous) n/a n/a n/a

two se mi-annual flow rate audits (PM) 10-14-10 10-14-10 10-12-10 02-23-10 05-28-10 09-13-10 02-23-10 05-28-10 09-13-10 03-22-10 05-25-10 09-22-10

### Toll

The Toll Road site is located at 684A State R oute 341 (Geiger Grade), one-half mile east of US Highway 395. The site is near the edge of a residential neighborhood and adjacent to an area that may become commercially developed. Due to the distance from the probe to the nearest roadway, this is a middle scale site. This site monitors source impacts of CO and PM 10 

### from the roadways and highest concentrations of O 3


### .

Site name: Toll

AQS ID: 32-031-0025 Geographical coordinates: 39 o 23.990’N, 119 o 44.376’W
Location: North end of Washoe County School District parking lot. Street address: 684A State Route 341 Reno, NV 89521 County: Washoe
Distance to road: 21 meters to SR341 (Geiger Grade Road). Traffic count: 15,667 AADT (2007-2009) (NDOT ATR 0310137 - SR 341, 0.4 miles east of US 395) Groundcover: Paved parking lot / Dirt Representative area: Reno-Sparks MSA



### Figure 24 Toll Monitoring Station

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 36

### Figure 25 Toll Monitoring Site Vicinity Map

Figure 26 Toll Monitoring Site Vicinity Aerial

Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 37

### Washoe County Air Quality Management Division 2011 Ambient Air Monitoring Network Plan 38 Toll (continued)

O 3 CO PM 10

Monitor objective Highest Concentration Source Impact Source Impact

Monitor classification SLAMS SLAMS SLAMS Spatial scale Middle Middle Middle
Sampling method API 400A API 300 Andersen 1200 Hi-Vol
Analysis method UV Photometry GFC Weighed by AQMD lab Start date March 1996 March 1996 March 1996 Operation schedule Continuous Continuous 1:6 Sampling season All year All year All year Probe height 4.0 meters 4.0 meters 4.2 meters
Distance: from supporting structure 1.2 meters 1.2 meters 1.5 meters
from obstructions on roof n/a n/a n/a
from obstructions not on roof 17.4 meters 17.4 meters 17.4 meters
from trees 12.5 meters 12.5 meters 12.5 meters
to furnace or incinerator flue n/a n/a n/a
between collocated monitors n/a n/a n/a
Unrestricted airflow 360 degrees 360 degrees 360 degrees
Probe material Teflon Teflon n/a
Residence time 8 seconds 8 seconds n/a Proposed modifications within the next 18 months? none none none Is the monitor suitable for comparison against the annual PM 2.5 NAAQS? n/a n/a n/a
Frequency of: flow rate verification for manual samplers audit (PM) n/a n/a Every 1:6 run and quarterly flow rate verification for automated analyzers audit (PM) n/a n/a n/a
one-point QC check (gaseous) Bi-weekly (3 point) Bi-weekly (3 point) n/a
Last:

annual performance evaluation (gaseous) 03-12-10 06-23-10 09-09-10 12-06-10 03-12-10 06-23-10 09-09-10 12-06-10 n/a

two semi-annual flow rate audits (PM) n/a n/a 02-22-10 06-08-10 09-13-10 10-14-10