Washoe County Health District

Air Quality Management Division

2015 Ambient Air Monitoring Network Plan

Submitted to EPA Region IX July 1, 2015 

Washoe County Health District 

Air Quality Management Division

1001 East Ninth Street, Suite B-171 

P.O. Box 11130 

Reno, Nevada 89520-0027 

(775) 784-7200 

OurCleanAir.com
i 

Table of Contents

Introduction ......................................................................................................................................1 

 Purpose .................................................................................................................................1 

 Public Inspection Process ....................................................................................................1 

 Agency Contacts ..................................................................................................................1 

Overview of Washoe County Health District Network Operation ..................................................2 

Network Design ...................................................................................................................2 

Minimum Monitoring Requirements ...................................................................................4 

 Collocation Requirements ....................................................................................................8 

 Network Modifications Completed in 2014 ........................................................................9 

 Additional Changes Completed in 2014 ..............................................................................9 

 Network Modifications Proposed for 2015-2016 ..............................................................10 

 Additional Changes Proposed for 2015-2016 ....................................................................10 

PM2.5 Monitoring Network Modifications Proposed for 2015-2016 .................................11 

Data Submission Requirements .........................................................................................11 

Overview of Tribal Network Operations .......................................................................................12 

Network Design .................................................................................................................12 

Washoe County Health District Detailed Site Information ...........................................................15 

Galletti................................................................................................................................15 

Incline ................................................................................................................................19 

Lemmon Valley .................................................................................................................22 

Plumb-Kit ...........................................................................................................................25 

Reno 3 ................................................................................................................................28 

 South Reno .........................................................................................................................34 

 Sparks .................................................................................................................................38 

Toll .....................................................................................................................................42 

Tables .............................................................................................................................................. ii

Figures............................................................................................................................................. ii

Acronyms and Abbreviations ........................................................................................................ iii

Appendices

Appendix A - Network Modification Request/Approval 

Appendix B - Network Modification Request/Approval 

Appendix C - Public Inspection Plan
ii

Tables 

1. Ambient Air Monitoring Sites and Parameters Monitored ..................................................3 

2. Minimum Monitoring Requirements for O3 ........................................................................4 

3. Minimum Monitoring Requirements for FEM PM2.5 ..........................................................4 

4. Minimum Monitoring Requirements for FRM PM2.5 ..........................................................4 

5. Minimum Monitoring Requirements for PM10 ....................................................................5 

6. Minimum Monitoring Requirements for NO2 .....................................................................5 

7. Minimum Monitoring Requirements for CO .......................................................................6 

8. Minimum Monitoring Requirements for SO2 ......................................................................6 

9. Minimum Monitoring Requirements for Pb at NCore .........................................................7 

10. Source-Oriented Pb Monitoring ...........................................................................................7 

11. Collocation of Manual PM2.5, PM10, and non-NCore Pb Monitors .....................................8 

12. Collocation of Automated FEM PM2.5 Monitors .................................................................8 

13. Tribal Ambient Air Monitoring Sites and Parameters Monitored .....................................12 

Figures 

1. Washoe County Health District - AQMD Ambient Air Monitoring Sites ..........................2 

2. Reno-Sparks Indian Colony ...............................................................................................13 

3. Pyramid Lake Paiute Tribe ................................................................................................14 

4. Galletti Monitoring Station ................................................................................................15 

5. Galletti Monitoring Site Vicinity Map ...............................................................................16 

6. Galletti Monitoring Site Vicinity Aerial ............................................................................16 

7. Incline Monitoring Station .................................................................................................19 

8. Incline Monitoring Site Vicinity Map................................................................................20 

9. Incline Monitoring Site Vicinity Aerial .............................................................................20 

10. Lemmon Valley Monitoring Station ..................................................................................22 

11. Lemmon Valley Monitoring Site Vicinity Map .................................................................23 

12. Lemmon Valley Monitoring Site Vicinity Aerial ..............................................................23 

13. Plumb-Kit Monitoring Station ...........................................................................................25 

14. Plumb-Kit Monitoring Site Vicinity Map ..........................................................................26 

15. Plumb-Kit Monitoring Site Vicinity Aerial .......................................................................26 

16. Reno3 Monitoring Station..................................................................................................28 

17. Reno3 Monitoring Site Vicinity Map ................................................................................29 

18. Reno3 Monitoring Site Vicinity Aerial..............................................................................29 

19. South Reno Monitoring Station .........................................................................................34 

20. South Reno Monitoring Site Vicinity Map ........................................................................35 

21. South Reno Monitoring Site Vicinity Aerial .....................................................................35 

22. Sparks Monitoring Station .................................................................................................38 

23. Sparks Monitoring Site Vicinity Map ................................................................................39 

24. Sparks Monitoring Site Vicinity Aerial .............................................................................39 

25. Toll Monitoring Station .....................................................................................................42 

26. Toll Monitoring Site Vicinity Map ....................................................................................43 

27. Toll Monitoring Site Vicinity Aerial .................................................................................43 
iii

Acronyms and Abbreviations

AADT Annual Average Daily Traffic Count 

AQI Air Quality Index 

AQMD Washoe County Health District - Air Quality 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

cc/min Cubic centimeter per minute

CFR Code of Federal Regulations

CMSA Consolidated Metropolitan Statistical Area

CO Carbon Monoxide 

CSA Combined Statistical Area

DMV Department of Motor Vehicles 

EBAM Met One Environmental Beta Attenuation Monitor 

EI Emissions Inventory

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

NCore National Core multipollutant monitoring station

NDOT Nevada Department of Transportation 

NO Nitric Oxide

NO2 Nitrogen Dioxide

NOx Oxides of Nitrogen 

NOy Reactive Oxides of Nitrogen

O3 Ozone 

PM2.5 Particulate Matter less than or equal to 2.5 microns in aerodynamic diameter

PM10 Particulate Matter less than or equal to 10 microns in aerodynamic diameter 

PMcoarse PM10 minus PM2.5

ppb parts per billion

ppm parts per million

PWEI Population Weighted Emissions Index 

RTI Research Triangle Institute

SASS Speciation Air Sampling System

SIP State Implementation Plan

SLAMS State and Local Air Monitoring Station

SO2 Sulfur Dioxide 

SPM Special Purpose Monitoring 

SR State Route

STN Speciation Trends Network

TAPI Teledyne Advanced Pollution Instrumentation, Inc. 
Washoe County Health District - AQMD July 1, 2015 

2015 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 monitoring sites, add provisions for monitoring of PMcoarse, and reduce certain monitoring 

requirements for criteria pollutants. Monitoring agencies are required to submit annual monitoring 

network plans, conduct network assessments every five years, perform quality assurance activities, and 

in certain instances, have NCore sites established by January 1, 2011. 

This plan was prepared and submitted as part of the fulfillment to these regulations. It represents the 

Washoe County Health District - Air Quality Management Division’s (AQMD) ambient air monitoring 

program activities completed in 2014 and proposed network modifications for 2015-2016. 

Public Inspection Process

This monitoring network plan was available for public inspection from June 1 to June 30, 2015 at the 

AQMD website (OurCleanAir.com). A hardcopy of the plan was also available at the AQMD office. 

Agency Contacts 

For information or questions regarding the 2015 Ambient Air Monitoring Network Plan, please contact 

the following individuals of the AQMD. 

Charlene Albee, Division Director 

(775) 784-7211, or calbee@washoecounty.us 

Daniel Inouye, Branch Chief

(775) 784-7214, or dinouye@washoecounty.us

Craig Petersen, Senior Air Quality Specialist

(775) 784-7233, or cpetersen@washoecounty.us 

 

1 71 FR 61236-61328.
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 2 

Overview of Washoe County Health District Network Operation

Network Design

The AQMD operated eight (8) ambient air monitoring sites in 2014 (Figure 1). The blue 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 PM10 NAAQS.2,3 

Washoe County is classified as “attainment” or “unclassifiable/attainment” for all other pollutants and 

averaging times. Table 1 lists the parameters monitored in 2014 sorted by network type and site. 

Figure 1

Washoe County Health District - AQMD Ambient Air Monitoring Sites

 

2 40 CFR 81.329.

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 PM10 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.
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 3 

Table 1

Ambient Air Monitoring Sites and Parameters Monitored 

Network Type 

Site

SLAMS O3

COTrace COTrace NONO2 NOxTrace NOyTrace SO2PM10(manual)PM10(continuous)PM2.5(manual)PM2.5(continuous)PMcoarse(manual)PMcoarse(continuous)PM2.5SpeciationMeteorology 

Galletti     

Incline 

Lemmon Valley  

Plumb-Kit  

South Reno   

Sparks      

Toll    

NCore4

Reno3              

Speciation 

Trends

Reno3 

Notes: Meteorology for the NCore network includes ambient temperature, wind speed, wind 

direction, and relative humidity. The PM10 manual method monitor at NCore is for PMcoarse

calculation only and is not submitted to AQS for data to be used in comparison to the NAAQS.

 

4 NCore monitoring began December 2010.
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 4 

Minimum Monitoring Requirements

The AQMD’s ambient air monitoring network meets the minimum monitoring requirements for all 

criteria pollutants pursuant to 40 CFR 58, Appendix D. Tables 2 through 10 provide pollutant specific 

monitoring requirements. Additional pollutant specific data may be found in the “Washoe County, 

Nevada, Air Quality Trends Report, 2005-2014”. The 2014 population data are from the Nevada State 

Demographer’s Office.5

Table 2 

Minimum Monitoring Requirements for O3 

8-hour Design Value

(2012-2014) Number of Sites

MSA County Population ppm Site (ID)

Minimum 

Required Active Needed

RenoSparks

Washoe

Storey

Total

436,797

3,974 

440,771

0.070 Reno 3 

(0016) 2 6 0 

 Monitors required for SIP or Maintenance Plan: 2 

Title 40 CFR 58, Appendix D, Section 4.1 requires O3 monitoring in MSAs with populations above 

350,000 people. Monitors are also required in MSAs with lower populations if measured O3 values 

within that MSA are within 85% of the NAAQS. 

Table 3

Minimum Monitoring Requirements for FEM PM2.5 

Design Value (2012-2014) Number of Monitors

MSA County Population

Annual 

(μg/m3)

Annual 

Site (ID)

Daily 

(μg/m3)

Daily 

Site (ID)

Minimum 

Required Active Needed

RenoSparks

Washoe

Storey

Total

436,797

3,974 

440,771

10.0 Sparks 

(1005) 32 Sparks (1005) 1 3 0 

 Monitors required for: SIP or Maintenance Plan: 0; NCore: 1

Table 4 

Minimum Monitoring Requirements for FRM PM2.5 

Design Value (2012-2014) Number of Monitors

MSA County Population

Annual 

(μg/m3)

Annual 

Site (ID)

Daily 

(μg/m3)

Daily 

Site (ID)

Minimum 

Required Active Needed

RenoSparks

Washoe

Storey

Total

436,797

3,974 

440,771

7.4 Reno3 

(0016) 23 Reno3 (0016) 1 1 0 

 Monitors required for: SIP or Maintenance Plan: 0; NCore: 1

 

5 Nevada State Demographer, “Governor Certified Population Estimates of Nevada’s Counties, Cities and Towns 2000 to 

2014”, 2014.
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 5 

Title 40 CFR 58, Appendix D, Section 4.7 requires PM2.5 monitoring in MSAs with populations above 

500,000 people and in MSAs with lower populations if measured PM2.5 values for an MSA are within 

85% of the NAAQS. 

Table 5 

Minimum Monitoring Requirements for PM10

Maximum Concentration (2014) Number of Sites

MSA County Population μg/m3 Site (ID) 

Minimum 

Required Active Needed

RenoSparks

Washoe

Storey

Total

436,797

3,974 

440,771

159 Galletti (0022) 0 6 0 

 Monitors required for SIP or Maintenance Plan: 4 

Title 40 CFR 58, Appendix D, Section 4.6 specifies PM10 monitoring requirements in MSAs based on 

population and design values. 

Table 6 

Minimum Monitoring Requirements for NO2 

Design Value (2012-

2014) Number of Monitors

CBSA Counties Population

Annual

(ppb)

1-hour

(ppb)

Minimum 

Required Active Needed

Reno, NV

Washoe

Storey

Total

436,797

3,974 

440,771

14 54 1 1 0 

 Monitors required for: SIP or Maintenance Plan: 0; NCore: 1

Title 40 CFR 58, Appendix D, Section 4.3.2 requires one near-road NO2 monitoring station in each 

CBSA with populations over 500,000 people. Likewise, Title 40 CFR 58, Appendix D, Section 4.3.3 

requires one area-wide NO2 monitoring station in each CBSA with populations over 1,000,000 people. 

Based on the 2013 population data from the Nevada State Demographer’s Office, the Reno, NV CBSA 

does not require a near-road or area-wide NO2 monitoring station.
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 6 

Table 7 

Minimum Monitoring Requirements for CO 

Design Value (2013-

2014) Number of Monitors

CBSA Counties Population

1-hour

(ppm)

8-hour

(ppm)

Minimum 

Required Active Needed

Reno, NV 

Washoe

Storey

Total

436,797

3,974 

440,771

3.4 2.7 2 5 0 

 Monitors required for: SIP or Maintenance Plan: 2; NCore: 1

Title 40 CFR 58, Appendix D, Section 3.0 requires high sensitivity CO monitors at NCore sites. Title 

40 CFR 58, Appendix D, Section 4.2 requires one CO monitor to operate collocated with one required 

near-road NO2 monitor in CBSAs having populations over 1,000,000 people. Based on the 2014 

population data from the Nevada State Demographer’s Office, the Reno, NV CBSA does not require a 

CO monitor collocated with a near-road NO2 monitor. 

Table 8

Minimum Monitoring Requirements for SO2

Total SO2

(tons/year)

PWEI

(Million persons-tons/year)

Number of Monitors

CBSA Counties Population

Minimum 

Required Active Needed

Reno, 

NV

Washoe

Storey

Total

436,797

3,974 

440,771

926.2 408.2 1 1 0 

 Monitors required for NCore: 1 

Title 40 CFR 58, Appendix D, Section 4.4.2 requires an SO2 monitoring network based on a calculated 

population weighted emissions index (PWEI). This index is calculated by multiplying the population of 

a CBSA with the National Emission Inventory (NEI) data for counties within that CBSA. The 

calculated value is then divided by one million in order to obtain the PWEI value. PWEI monitoring 

requirements are as follows: 1) one monitor in CBSAs with a PWEI value greater than 5,000, 2) two 

monitors in CBSAs with a PWEI value greater than 100,000, and 3) three monitors in CBSAs with a 

PWEI value greater than 1,000,000. As shown in Table 8, AQMD used 2014 population data from the 

Nevada State Demographer’s Office and 2011 National Emissions Inventory data to determine that no 

additional SO2 monitoring is required. 
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 7 

Table 9

Minimum Monitoring Requirements for Pb at NCore

Title 40 CFR 58, Appendix D, Section 3(b) requires Pb monitoring for NCore sites in CBSAs with a

population of 500,000 people or greater. 

Table 10

Source-Oriented Pb Monitoring 

Title 40 CFR 58, Appendix D, Section 4.5(a) requires one source-oriented SLAMS site located to 

measure the maximum Pb concentration in ambient air resulting from each non-airport Pb source which 

emits 0.50 or more tons per year and from each airport which emits 1.0 or more tons per year based on

the most recent National Emission Inventory. All non-airport sources of Pb within the CBSA emit less 

than 0.5 tons per year and all airport sources within the CBSA emit less than 1.0 tons per year, according 

to the 2011 NEI. Table 10 includes the two largest sources of Pb emissions in the Reno, NV CBSA. 

Number of Monitors

NCore Site 

Name AQS ID CBSA Counties Population Minimum Required Active Needed

Reno 3 32-031-0016 Reno, NV 

Washoe

Storey

Total

436,797

3,974 

440,771

0 0 0 

Source 

Name Address

Pb 

Emissions 

(tons/year)

Emission 

Inventory Source 

& Data Year

Max 3-Month 

Design Value 

(μg/m3)

Design Value 

Date (3rd

Month, Year)

Number of Monitors

Minimum 

Required Active Needed

Reno-Stead 

Airport 

4895 Texas 

Ave

Reno, NV

0.25 2011 NEI N/A N/A 0 0 0 

Reno-Tahoe 

International 

Airport

2001 E Plumb 

Lane

Reno, NV

0.15 2011 NEI N/A N/A 0 0 0 
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 8 

Collocation Requirements 

Title 40 CFR 58, Appendix A, Section 3 describes the number of collocated monitors required for PM2.5, 

PM10, and Pb networks at the Primary Quality Assurance Organization (PQAO) level. Tables 11 and 12 

display how AQMD is assessing and meeting these collocation requirements.

Table 11

Collocation of Manual PM2.5, PM10, and non-NCore Pb Monitors 

Method Code Number of Primary Monitors

Number of Collocated Monitors

Required Active

125 0 0 0 

Title 40 CFR 58, Appendix A, Section 3.3.1 requires 15 percent (at least 1) of the manual method 

samplers be collocated. Being that AQMD only runs one manual method sampler for the calculation of 

PM10-2.5 at the Reno 3 NCore station, and all of the Primary PM10 monitors are continuous methods, 

there is no collocation requirement.

Table 12

Collocation of Automated FEM PM2.5 Monitors 

Method 

Code

Number of 

Primary Monitors

Number of Required 

Collocated Monitors

Number of Active 

Collocated FRM 

Monitors

Number of Active Collocated FEM 

Monitors (same method 

designation as primary)

170 3 1 1 0 

Title 40 CFR 58, Appendix A, Section 3.2.5 requires 15 percent (at least 1) of the monitors be 

collocated. The first collocated monitor must be a designated FRM monitor. AQMD meets this 

requirement by having three Primary PM2.5 FEM monitors with one at the Reno 3 monitoring station 

collocated with a PM2.5 FRM sampler.
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 9 

Network Modifications Completed in 2014 

SLAMS:

CO (South Reno) 

• CO analyzer was taken offline and monitoring for CO at South Reno site was discontinued. See 

Appendix A, Network Modification Request/Approval for South Reno SLAMS CO closure.

All pollutants and meteorology (Galletti)

• All monitoring at Galletti site discontinued. See Appendix B, Network Modification 

Request/Approval for Galletti SLAMS closure. 

NCore: 

• No modifications completed. 

Speciation Trends: 

• No modifications completed. 

Additional Changes Completed in 2014

SLAMS:

O3 (Lemmon Valley, South Reno, Sparks) 

• Replaced existing TAPI 400E O3 analyzers with new TAPI T400 analyzers as part of AQMD’s 

ten-year replacement program.

CO, O3 (South Reno, Sparks) 

• Replaced the Environics 6103 Ozone Transfer Standard/Multi-gas Calibrator with a TeledyneAPI T700 Dynamic Dilution Calibrator as part of ten-year replacement program. 

PM10, PM2.5 (Sparks)

• Existing Met One BAM 1020 FEM PM2.5 monitor was replaced by a new Met One BAM 1020 

FEM PM10 monitor. Existing Met One BAM 1020 FEM PM10 monitor converted to PM2.5. 

Both Met One BAM 1020s converted to coarse pair. 

• Met One BAM 1020 FEM coarse pair configured to be direct polled by AirVision software.

NCore:

CO, O3, NOy, SO2 (Reno 3) 

• Replaced the Environics 6103 Ozone Transfer Standard/Multi-gas Calibrator with a TeledyneAPI T700U Dynamic Dilution Calibrator as part of ten-year replacement program.

PM10, PM2.5 (Reno 3) 

• Existing duplicate BGI PQ200 FRM PM2.5 manual method sampler discontinued. Last run was 

on 12-31-14. 

• Met One BAM 1020 FEM coarse pair configured to be direct polled by AirVision software.

Speciation Trends: 

PM2.5 Speciation (Reno 3) 

• Met One SASS replaced by Met One SuperSASS and URG 3000N upgraded to allow for 

sequential sampling beginning February 26, 2014. 
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 10 

Other:

• Replaced existing TAPI 400E Primary Ozone Standard with new TAPI T400 Primary Ozone 

Standard as part of AQMD’s ten-year replacement program.

Network Modifications Proposed for 2015 - 2016 

SLAMS:

• No modifications proposed. 

NCore: 

• No modifications proposed. 

Speciation Trends: 

• No modifications proposed. 

SPM:

All pollutants and meteorology (Spanish Springs) 

• Start monitoring PM10, PM2.5, PM10-2.5, O3, and meteorology at new site in Spanish Springs. See 

Appendix B, Network Modification Request/Approval for Spanish Springs SPM site initiation.

Additional Changes Proposed for 2015-2016 

SLAMS:

CO, O3 (Lemmon Valley)

• Replace the Environics 6103 Ozone Transfer Standard/Multi-gas Calibrator with a Teledyne-API 

T700 Dynamic Dilution Calibrator as part of ten-year replacement program. 

CO, O3 (Incline, Lemmon Valley, South Reno, Sparks, Toll) 

• Program nightly automatic zero and span checks allowing for weekly precision checks rather 

than bi-weekly zero, span, and precision checks.

Meteorology (Plumb-Kit, South Reno, Sparks, Toll) 

• Replace existing stationary 10 meter towers with telescoping 10 meter towers and add roof 

access ladders to increase staff safety.

PM10, PM2.5 (Plumb Kit, South Reno, Toll)

• Configure Met One BAM 1020 FEM PM10 monitors to be direct polled by AirVision software.

NCore:

Meteorology (Reno 3) 

• Install a new Met One 595 solar radiation sensor.

Speciation Trends: 

• No modifications proposed. 

SPM:

• No modifications proposed. 
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 11 

PM2.5 Monitoring Network Modifications Proposed for 2015-2016 

SLAMS:

• No modifications proposed. 

NCore: 

• No modifications proposed. 

Speciation Trends: 

• No modifications proposed. 

SPM:

PM2.5 (Spanish Springs) 

• Start monitoring PM2.5 at new site in Spanish Springs. See Appendix B, Network Modification 

Request/Approval for Spanish Springs SPM site initiation. 

Data Submission Requirements

Precision and Accuracy Reports for 2014 were submitted to AQS for the: 

 1st quarter in June 2014, 

 2nd quarter in September 2014, 

 3rd quarter in November 2014, and 

 4th quarter in March 2015. 

Annual Data Certification for all data for 2014 was submitted to EPA on April 30, 2015. 
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 12 

Overview of Tribal Network Operations

Network Design

Two tribes operate ambient air monitoring networks within the geographic boundaries of Washoe 

County - The Reno-Sparks Indian Colony (RSIC) and Pyramid Lake Paiute Tribe (PLPT). Table 13

summarizes the tribal sites and parameters monitored in 2014. Figure 2 shows the location of tribal 

lands for the Reno-Sparks Indian Colony and Figure 3 is a map showing the locations of the Pyramid 

Lake Paiute Tribes’ monitoring sites. For additional detailed site information about the RSIC and PLPT 

monitoring networks including annual network plans, refer to the following contact information. 

Reno Sparks Indian Colony Pyramid Lake Paiute Tribe

Elizabeth Acevedo Tanda Roberts 

Environmental Specialist II Air Quality Specialist 

Environmental Program of the Environmental Department 

Planning Department P.O. Box 256 

1937 Prosperity Street Nixon, NV 89424 

Reno, NV 89502 (775) 574-0101 ext.18

(775)785-1363, ext. 5409 troberts@plpt.nsn.us

eacevedo@rsic.org http://plpt.nsn.us/environmental/air.htm

www.rsic.org

Table 13 

Tribal Ambient Air Monitoring Sites and Parameters Monitored 

Network

Site

Site ID

RSIC O3

CONO2 NOxPM10(manual)PM10(continuous)PM2.5(manual)PM2.5(continuous)PMcoarse(manual)PMcoarse(continuous)Meteorology 

Hungry Valley

TT 653 2010



PLPT

WADSAQ

T-561-1026

 
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 13 

Figure 2

Reno-Sparks Indian Colony 
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 14 

Figure 3

Pyramid Lake Paiute Tribe

Map 1 - Location of Pyramid Lake Paiute Tribe Air Quality Monitoring Site. 
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 15 

Washoe County Health District Detailed Site Information

Galletti

The Galletti site is located southeast of the Interstate 80 - US Highway 395/Interstate 580 interchange in 

a commercial/industrial area. The Galletti site was closed in November 2014 due to an emergency 

paving project by the Nevada Department of Transportation. 

Site Name: Galletti

AQS ID: 32-031-0022

Geographical coordinates: 39o 31.920’N, 119o 47.099’W

Location: South end of NDOT equipment yard.

Street address: 305 Galletti Way

Reno, NV 89512

County: Washoe

Distance to road: 15.0 meters to Kietzke Lane; 117 meters to IR 580

Traffic count: 

14,100 AADT (2011-2013)

(NDOT ATR 0312210 - Kietzke Lane, 0.15 miles south of Galletti Way)

144,000 AADT (2011-2013) 

(NDOT ATR 0310461 – IR580 (US 395), ‘Exit 67’ 0.2 miles north of Glendale Ave.)

Groundcover: Paved

Representative area: Reno-Sparks MSA

Figure 4

Galletti Monitoring Station
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 16 

Figure 5 

Galletti Monitoring Site Vicinity Map

Figure 6 

Galletti Monitoring Site Vicinity Aerial
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 17 

Galletti (continued)

PM10 PM2.5 PM10-2.5 CO

Site type Highest 

Concentration

Highest 

Concentration

Highest 

Concentration

Highest 

Concentration

Monitor type SLAMS SLAMS SLAMS SLAMS

Network Affiliation n/a n/a n/a n/a

Spatial scale Middle Middle Middle Middle

Sampling method Met One BAM 1020 Met One BAM 1020 Met One BAM 1020 TAPI 300E

Analysis method Beta Attenuation Beta Attenuation Beta Attenuation GFC

Method code 122 170 185 093

Parameter code 81102 & 85101 88101 86101 42101

Parameter occurrence code 6 1 1 1 

Start date

August 1988;

Discontinued

November 2014

January 2013;

Discontinued

November 2014

January 2013;

Discontinued

November 2014

August 1988;

Discontinued

November 2014

Operation schedule Continuous Continuous Continuous Continuous

Sampling season All year All year All year All year

Monitoring objective(s) NAAQS comparison NAAQS comparison Research Support NAAQS comparison

Probe height 4.0 meters 4.0 meters 4.0 meters 4.0 meters

Height of obstruction not on roof n/a n/a n/a n/a

Distance:

from supporting structure 1.2 meters 1.2 meters 1.2 meters 1.2 meters

from obstructions not on roof None None None None

from obstructions on roof n/a n/a n/a n/a

from trees 8.2 meters* 8.2 meters* 8.2 meters* 8.2 meters*

to furnace or incinerator flue n/a n/a n/a n/a

between collocated monitors n/a n/a n/a n/a

Flow rate 16.7 l/min 16.7 l/min 16.7 l/min 720-880 cc/min

Unrestricted airflow 360 degrees 360 degrees 360 degrees 360 degrees

Probe material n/a n/a n/a Teflon

Residence time n/a n/a n/a 6 seconds

Proposed modifications 

within the next 18 months? None None None None

Is the monitor suitable for 

comparison against the annual PM2.5

NAAQS?

n/a Yes n/a n/a

Frequency of:

flow rate verification for 

manual samplers audit (PM) n/a 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

n/a

one-point QC check (gaseous) n/a n/a n/a Bi-weekly (3 point)

Last: 

annual performance evaluation 

(gaseous) n/a n/a n/a

03-19-14

06-06-14

09-10-14

10-29-14

two semi-annual flow rate audits 

(PM) 

03-24-14

06-24-14

09-24-14

11-18-14

03-24-14

06-24-14

09-24-14

11-18-14

03-24-14

06-24-14

09-24-14

11-18-14

n/a

* Trees are not of sufficient height and leaf canopy density to interfere with the normal unrestricted airflow or pollutant 

scavenging 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 Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 18 

Galletti (continued)

Wind Speed Wind Direction

Ambient 

Temperature

Site type Population Exposure Population Exposure Population Exposure

Monitor type SLAMS SLAMS SLAMS

Network Affiliation n/a n/a n/a

Spatial scale Middle Middle Middle

Sampling method Met One 50.5H Met One 50.5H YSI Series 700

Analysis method Sonic Anemometer Sonic Anemometer Electronic Average

Method code 061 061 014

Parameter code 61102 61101 64101

Parameter occurrence code 1 1 1 

Start date

January 2014;

Discontinued

November 2014

January 2014;

Discontinued

November 2014

January 2014;

Discontinued

November 2014

Operation schedule Continuous Continuous Continuous

Sampling season All year All year All year

Monitoring objective(s) Public Information Public Information Public Information

Probe height 10.0 meters 10.0 meters 5.0 meters

Height of obstruction not on roof n/a n/a n/a

Distance:

from supporting structure 10.0 meters 10.0 meters 5.0 meters

from obstructions not on roof None None None

from obstructions on roof n/a n/a n/a

from trees 9.0 meters 9.0 meters 9.0 meters

to furnace or incinerator flue n/a n/a n/a

between collocated monitors n/a n/a n/a

Flow rate 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 PM2.5

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) n/a n/a n/a

Last: 

annual performance evaluation 

(gaseous & meteorological) 

03-19-14

06-27-14

09-23-14

11-18-14

03-19-14

06-27-14

09-23-14

11-18-14

03-19-14

06-27-14

09-23-14

11-18-14

two semi-annual flow rate audits 

(PM) n/a n/a n/a
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 19 

Incline

This site is located in a Washoe County office building at 855 Alder Avenue and is outside HA 87. It is 

located in a residential/commercial neighborhood. The AQMD had monitored PM10 (1993-2002) and 

CO (1993-2002) and currently monitors for O3. This site was temporarily closed from December 2005 

to May 2008 for remodeling. By multi-agency cooperative agreement, the California Air Resources 

Board (CARB) monitored PM2.5 (1999-2002) and NO2 (1999-2002). Since May 2008, this site only 

monitors for O3.

Site Name: Incline

AQS ID: 32-031-2002

Geographical coordinates: 39o 15.025’N, 119o 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

Traffic count: 

12,000 AADT (2011-2013)

(NDOT ATR 0310379 – SR28, North Shore Rd (Tahoe Blvd), 450ft south of Village 

Blvd.)

Groundcover: Paved / Vegetated

Representative area: Reno-Sparks MSA

Figure 7 

Incline Monitoring Station
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 20 

Figure 8 

Incline Monitoring Site Vicinity Map

Figure 9 

Incline Monitoring Site Vicinity Aerial
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 21 

Incline (continued)

O3

Site type Population Exposure

Monitor type SLAMS

Network Affiliation n/a

Spatial scale Neighborhood

Sampling method TAPI 400E 

Analysis method UV Photometry

Method code 087

Parameter code 44201

Parameter occurrence code 1 

Start date June 1993

Operation schedule Continuous

Sampling season All year

Monitoring objective(s) NAAQS comparison

Probe height 4.6 meters

Height of obstruction not on roof n/a

Distance:

from supporting structure 1.1 meters

from obstructions not on roof None

from obstructions on roof n/a

from trees 5.2 meters*

to furnace or incinerator flue 12.2 meters

between collocated monitors n/a

Flow rate 720-880 cc/min

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 PM2.5

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)

03-19-14

06-10-14

09-09-14

10-29-14

two semi-annual flow rate audits 

(PM) n/a

* Trees are not of sufficient height and leaf canopy density to interfere with the normal unrestricted airflow or pollutant 

scavenging 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 Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 22 

Lemmon Valley

Located at the Boys and Girls Club at 325 Patrician Drive, this site is outside HA 87. It is in a 

transitional area among residences, parks, and open fields. 

Site name: Lemmon Valley

AQS ID: 32-031-2009

Geographical coordinates: 39° 38.716’N, 119° 50.401’W

Location: Inside northwest corner of Boys and Girls Club. 

Street address: 

325 W. Patrician Drive

Reno, NV 89506

County: Washoe

Distance to road: 59 meters to Patrician Drive. 

Traffic count: 

887 AADT (2011-2013)

(NDOT ATR 0310926 - Patrician Drive, 150 feet west of Lemmon Drive)

Groundcover: Paved / Vegetated

Representative area: Reno-Sparks MSA

Figure 10 

Lemmon Valley Monitoring Station
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 23 

Figure 11 

Lemmon Valley Monitoring Site Vicinity Map

Figure 12 

Lemmon Valley Monitoring Site Vicinity Aerial
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 24 

Lemmon Valley (continued)

CO O3

Site type Population Exposure Population Exposure

Monitor type SLAMS SLAMS

Network Affiliation n/a n/a

Spatial scale Urban Urban

Sampling method TAPI 300EU TAPI T400

Analysis method GFC UV Photometry

Method code 093 087

Parameter code 42101 44201

Parameter occurrence code 1 1 

Start date January 1987 January 1987

Operation schedule Continuous Continuous

Sampling season All year All year

Monitoring objective(s) NAAQS comparison NAAQS comparison

Probe height 5.5 meters 5.5 meters

Height of obstruction not on roof n/a n/a

Distance:

from supporting structure 2.0 meters 2.0 meters

from obstructions not on roof None None

from obstructions 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

Flow rate 1440-2160 cc/min 720-880 cc/min

Unrestricted airflow 360 degrees 360 degrees

Probe material Teflon Teflon

Residence time 5 seconds 5 seconds

Proposed modifications 

within the next 18 months? None None

Is the monitor suitable for 

comparison against the annual PM2.5

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)

03-18-14

06-05-14

09-09-14

10-28-14

03-18-14

06-05-14

09-09-14

10-28-14

two semi-annual flow rate audits 

(PM) n/a n/a
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 25 

Plumb-Kit

The Plumb-Kit site is located on the northeast corner of Plumb Lane and Kietzke Lane. The site is 

surrounded by both residential and commercial properties as well as a school. 

Site name: Plumb-Kit

AQS ID: 32-031-0030

Geographical coordinates: 39o 30.381’N, 119o 47.314’W

Location: Northeast corner of Plumb 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 

Traffic count: 

21,833 AADT (2011-2013)

(NDOT ATR 0310191 - Kietzke Lane, 0.3 mi S of Plumb Lane. 

26,667 AADT (2011-2013) 

(NDOT ATR 0310192 - East Plumb Lane, 590 feet east of Kietzke Lane) 

Groundcover: Gravel

Representative area: Reno-Sparks MSA

Figure 13 

Plumb-Kit Monitoring Station
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 26 

Figure 14 

Plumb-Kit Monitoring Site Vicinity Map

Figure 15 

Plumb-Kit Monitoring Site Vicinity Aerial
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 27 

Plumb-Kit (continued)

PM10 Wind Speed Wind Direction

Ambient 

Temperature

Site type Population Exposure Population Exposure Population Exposure Population Exposure

Monitor type SLAMS SLAMS SLAMS SLAMS

Network Affiliation n/a n/a n/a n/a

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood

Sampling method Met One BAM 1020 Met One 50.5H Met One 50.5H YSI Series 700

Analysis method Beta Attenuation Sonic Anemometer Sonic Anemometer Electronic Average

Method code 122 061 061 014

Parameter code 81102 61102 61101 64101

Parameter occurrence code 2 1 1 1 

Start date January 2006 January 2014 January 2014 January 2014

Operation schedule Continuous Continuous Continuous Continuous

Sampling season All year All year All year All year

Monitoring objective(s) NAAQS comparison Public Information Public Information Public Information

Probe height 4.3 meters 10.0 meters 10.0 meters 5.0 meters

Height of obstruction not on roof n/a n/a n/a n/a

Distance:

from supporting structure 1.5 meters 10.0 meters 10.0 meters 5.0 meters

from obstructions not on roof None None None None

from obstructions on roof n/a n/a n/a n/a

from trees 12.2 meters* 13.0 meters 13.0 meters 13.0 meters

to furnace or incinerator flue n/a n/a n/a n/a

between collocated monitors n/a n/a n/a n/a

Flow rate 16.7 l/min n/a n/a n/a

Unrestricted airflow 360 degrees 360 degrees 360 degrees 360 degrees

Probe material n/a n/a n/a n/a

Residence time n/a n/a n/a n/a

Proposed modifications 

within the next 18 months? None None None None

Is the monitor suitable for 

comparison against the annual PM2.5

NAAQS?

n/a n/a n/a n/a

Frequency of:

flow rate verification for manual 

samplers audit (PM) n/a n/a n/a n/a

flow rate verification for 

automated analyzers audit (PM)

Bi-weekly 

verifications and 

quarterly audits

n/a n/a n/a

one-point QC check (gaseous) n/a n/a n/a n/a

Last: 

annual performance evaluation 

(gaseous & meteorological) n/a

03-27-14

06-27-14

09-24-14

11-21-14

03-27-14

06-27-14

09-24-14

11-21-14

03-27-14

06-27-14

09-24-14

11-21-14

two semi-annual flow rate audits 

(PM) 

03-27-14

06-23-14

09-24-14

12-02-14

n/a n/a n/a

* Trees are not of sufficient height and leaf canopy density to interfere with the normal unrestricted airflow or pollutant 

scavenging 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 Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 28 

Reno 3 

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. In December 2010, this site became an 

NCore site.

Site name: Reno 3 

AQS ID: 32-031-0016

Geographical coordinates: 39o 31.505’N, 119o 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: 

4,733 AADT (2011-2013)

(NDOT ATR 0310862 – Mill Street, 100 feet west of Holcomb Avenue)

200-300 Approximate AADT on River Rock

(RTC/City of Reno Estimate)

Groundcover: Paved

Representative area: Reno-Sparks MSA

Figure 16 

Reno 3 Monitoring Station
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 29 

Figure 17 

Reno 3 Monitoring Site Vicinity Map

Figure 18 

Reno 3 Monitoring Site Vicinity Aerial
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 30 

Reno 3 (continued)

FEM PM10

(Primary)

FEM PM2.5

(Primary)

FEM PM10-2.5

(Primary) PM2.5 Speciation

Site type Population Exposure Population Exposure Population Exposure Population Exposure

Monitor type SLAMS SLAMS SLAMS SLAMS

Network Affiliation NCore NCore NCore CSN STN, NCore

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood

Sampling method Met One BAM 1020 Met One BAM 1020 Met One BAM 1020

Coarse Pair

Met One SASS;

URG 3000N

Analysis method Beta Attenuation Beta Attenuation Subtraction RTI lab

Method code 122 170 185 SASS: 810

URG: 870

Parameter code 81102 & 85101 88101 86101 88502

Parameter occurrence code 2 3 2 1 

Start date December 2010 December 2010 December 2010 November 2001

Operation schedule Continuous Continuous Continuous 1:3

Sampling season All year All year All year All year

Monitoring objective(s) NAAQS comparison NAAQS comparison Research Support Research Support

Probe height 4.4 meters 4.6 meters 4.5 meters SASS: 4.8 meters

URG: 5.0 meters

Height of obstruction not on roof n/a n/a n/a n/a

Distance:

from supporting structure 1.5 meters 1.6 meters 1.6 meters SASS: 1.8 meters

URG: 2.1 meters

from obstructions not on roof None None None None

from obstructions on roof n/a n/a n/a n/a

from trees 19.3 meters 18.3 meters 18.3 meters SASS: 19.7 meters

URG: 21 meters

to furnace or incinerator flue n/a n/a n/a n/a

between collocated monitors n/a n/a n/a n/a

Flow rate 16.7 l/min 16.7 l/min 16.7 l/min SASS: 6.7 l/min

URG: 22.0 l/min

Unrestricted airflow 360 degrees 360 degrees 360 degrees 360 degrees

Probe material n/a n/a n/a n/a

Residence time n/a n/a n/a n/a

Proposed modifications 

within the next 18 months? None None None None

Is the monitor suitable for 

comparison against the annual PM2.5

NAAQS?

n/a Yes n/a No

Frequency of:

flow rate verification for manual 

samplers audit (PM) n/a n/a n/a

Monthly 

verifications and 

quarterly audits

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

n/a

one-point QC check (gaseous) n/a n/a n/a n/a

Last: 

annual performance evaluation 

(gaseous) n/a n/a n/a n/a

two semi-annual flow rate audits 

(PM) 

03-25-14

06-23-14

09-24-14

12-02-14

03-25-14

06-23-14

09-24-14

12-02-14

03-25-14

06-23-14

09-24-14

12-02-14

03-25-14

06-26-14

09-25-14

12-09-14
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 31 

Reno 3 (continued)

* Trees are not of sufficient height and leaf canopy density to interfere with the normal unrestricted airflow or pollutant 

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

the trees.

FRM PM10

FRM PM2.5

(Collocated)

FRM PM2.5

(Duplicate)

FRM PM10-2.5

(Collocated)

Site type Population Exposure Population Exposure Population Exposure Population Exposure

Monitor type SLAMS SLAMS SLAMS SLAMS

Network Affiliation NCore NCore NCore NCore 

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood

Sampling method BGI PQ200 BGI PQ200 BGI PQ200 BGI PQ200 coarse 

pair

Analysis method AQMD lab AQMD lab AQMD lab Subtraction

Method code 125 142 142 173

Parameter code 81102 & 85101 88101 88101 86101

Parameter occurrence code 1 1 2 1 

Start date April 1988 January 1999

January 1999;

Discontinued 

December 2014

March 2009

Operation schedule 1:3 1:3 1:3 1:3

Sampling season All year All year All year All year

Monitoring objective(s) Research Support NAAQS comparison NAAQS comparison Research Support

Probe height 5.0 meters 5.0 meters 5.0 meters 5.0 meters

Height of obstruction not on roof n/a n/a n/a n/a

Distance:

from supporting structure 2.0 meters 2.0 meters 2.0 meters 2.0 meters

from obstructions not on roof None None None None

from obstructions on roof n/a n/a n/a n/a

from trees 18.4 meters* 19.4 meters* 18.4 meters* 18.4 meters*

to furnace or incinerator flue n/a n/a n/a n/a

between collocated monitors n/a 1.1 meters 1.1 meters n/a

Flow rate 16.7 l/min 16.7 l/min 16.7 l/min 16.7 l/min

Unrestricted airflow 360 degrees 360 degrees 360 degrees 360 degrees

Probe material n/a n/a n/a n/a

Residence time n/a n/a n/a n/a

Proposed modifications within the 

next 18 months? None None None None

Is the monitor suitable for 

comparison against the annual PM2.5

NAAQS?

n/a Yes Yes n/a

Frequency of:

flow rate verification for manual 

samplers audit (PM)

Monthly 

verifications and 

quarterly audits

Monthly 

verifications and 

quarterly audits

Monthly 

verifications and 

quarterly audits

Monthly 

verifications and 

quarterly audits

flow rate verification for 

automated analyzers audit (PM) n/a n/a n/a n/a

one-point QC check (gaseous) n/a n/a n/a n/a

Last: 

annual performance evaluation 

(gaseous) n/a n/a n/a n/a

two semi-annual flow rate audits 

(PM) 

03-28-14

06-26-14

09-25-14

12-09-14

03-28-14

06-26-14

09-25-14

12-09-14

03-28-14

06-26-14

09-25-14

12-09-14

03-28-14

06-26-14

09-25-14

12-09-14
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 32 

Reno 3 (continued)

Trace CO O3 NO2 Trace NOy Trace SO2

Site type Population Exposure Population Exposure Population Exposure Population Exposure Population Exposure

Monitor type SLAMS SLAMS SLAMS SLAMS SLAMS

Network Affiliation NCore NCore NCore NCore NCore 

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood Neighborhood

Sampling method TAPI 300EU TAPI 400E TAPI 200EU TAPI 200EU with 

501 TAPI 100EU

Analysis method GFC UV Photometry Chemiluminescent Chemiluminescent UV Fluorescence

Method code 593 087 099 699 600

Parameter code 42101 44201 42602 42612 42401

Parameter occurrence code 1 1 1 1 1 

Start date December 2010 January 1983 November 2001 December 2010 December 2010

Operation schedule Continuous Continuous Continuous Continuous Continuous

Sampling season All year All year All year All year All year

Monitoring objective(s) NAAQS comparison NAAQS comparison NAAQS comparison Research Support NAAQS comparison

Probe height 4.9 meters 4.9 meters 4.8 meters 10.0 meters 4.9 meters

Height of obstruction not on roof n/a n/a n/a n/a n/a

Distance:

from supporting structure 1.9 meters 1.9 meters 1.8 meters 10.0 meters 1.9 meters

from obstructions not on roof None None None None None

from obstructions on roof n/a n/a n/a n/a n/a

from trees 17.4 meters* 17.4 meters* 18.4 meters* 17.4 meters* 17.4 meters*

to furnace or incinerator flue n/a n/a n/a n/a n/a

between collocated monitors n/a n/a n/a n/a n/a

Flow rate 1440-2160 cc/min 720-880 cc/min 900-1100 cc/min 900-1100 cc/min 585-715 cc/min

Unrestricted airflow 360 degrees 360 degrees 360 degrees 360 degrees 360 degrees

Probe material Teflon Teflon Teflon Teflon Teflon

Residence time 5 seconds 5 seconds 9 seconds 9 seconds 5 seconds

Proposed modifications 

within the next 18 months? None None None None None

Is the monitor suitable for 

comparison against the annual PM2.5

NAAQS?

n/a n/s n/a n/a n/a

Frequency of:

flow rate verification for manual 

samplers audit (PM) n/a n/a n/a n/a n/a

flow rate verification for 

automated analyzers audit (PM) n/a n/a n/a n/a n/a

one-point QC check (gaseous) Weekly Weekly Weekly

(4 point w/ GPT)

Weekly

(4 point w/ GPT) Weekly

Last: 

annual performance evaluation 

(gaseous)

03-25-14

06-18-14

09-17-14

11-06-14

03-25-14

06-18-14

09-17-14

11-06-14

03-26-14

06-19-14

09-18-14

11-04-14

03-26-14

06-18-14

09-17-14

11-06-14

03-15-13

06-26-13

08-27-13

12-12-13

two semi-annual flow rate audits 

(PM) n/a n/a n/a n/a n/a

* Trees are not of sufficient height and leaf canopy density to interfere with the normal unrestricted airflow or pollutant 

scavenging 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 Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 33 

Reno 3 (continued)

Wind Speed Wind Direction

Ambient 

Temperature Relative Humidity

Site type Population Exposure Population Exposure Population Exposure Population Exposure

Monitor type SLAMS SLAMS SLAMS SLAMS

Network Affiliation NCore NCore NCore NCore 

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood

Sampling method Met One 50.5H Met One 50.5H YSI Series 700 Met One 083E

Analysis method Sonic Anemometer Sonic Anemometer Electronic Average Met One 083D

Method code 061 061 014 61

Parameter code 61102 61101 64101 62201

Parameter occurrence code 1 1 1 1 

Start date February 2013 February 2013 February 2013 February 2013

Operation schedule Continuous Continuous Continuous Continuous

Sampling season All year All year All year All year

Monitoring objective(s) Research, Public 

Information

Research, Public 

Information

Research, Public 

Information

Research, Public 

Information

Probe height 10.0 meters 10.0 meters 5.0 meters 5.0 meters

Height of obstruction not on roof n/a n/a n/a n/a

Distance:

from supporting structure 10.0 meters 10.0 meters 5.0 meters 5.0 meters

from obstructions not on roof None None None None

from obstructions on roof n/a n/a n/a n/a

from trees 22 meters 22 meters 22 meters 22 meters

to furnace or incinerator flue n/a n/a n/a n/a

between collocated monitors n/a n/a n/a n/a

Flow rate n/a n/a n/a n/a

Unrestricted airflow 360 degrees 360 degrees 360 degrees 360 degrees

Probe material n/a n/a n/a n/a

Residence time n/a n/a n/a n/a

Proposed modifications 

within the next 18 months? None None None None

Is the monitor suitable for 

comparison against the annual PM2.5

NAAQS?

n/a n/a n/a n/a

Frequency of:

flow rate verification for manual 

samplers audit (PM) n/a n/a n/a n/a

flow rate verification for 

automated analyzers audit (PM) n/a n/a n/a n/a

one-point QC check (gaseous) n/a n/a n/a n/a

Last: 

annual performance evaluation 

(gaseous & meteorological) 

03-28-14

06-18-14

09-23-14

11-06-14

03-28-14

06-18-14

09-23-14

11-06-14

03-28-14

06-18-14

09-23-14

11-06-14

03-28-14

06-18-14

09-23-14

11-06-14

two semi-annual flow rate audits 

(PM) n/a n/a n/a n/a
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 34 

South Reno

Located on the NV Energy property at 4110 Delucchi Lane, this site is in a transitional environment 

between open fields and office buildings. 

Site name: South Reno

AQS ID: 32-031-0020

Geographical coordinates: 39o 28.153’N, 119o 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: 

5,367 AADT (2011-2013)

(NDOT ATR 0310690 - Neil Road, 515 feet north of DeLucchi Lane)

Groundcover: Gravel / Dirt / Vegetated

Representative area: Reno-Sparks MSA

Figure 19 

South Reno Monitoring Station
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 35 

Figure 20 

South Reno Monitoring Site Vicinity Map 

Figure 21 

South Reno Monitoring Site Vicinity Aerial 
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 36 

South Reno (continued)

PM10 CO O3

Site type Population Exposure Population Exposure Population Exposure

Monitor type SLAMS SLAMS SLAMS

Network Affiliation n/a n/a n/a

Spatial scale Neighborhood Neighborhood Neighborhood

Sampling method Met One BAM 1020 TAPI 300EU TAPI T400

Analysis method Beta Attenuation GFC UV Photometry

Method code 122 093 087

Parameter code 81102 42101 44201

Parameter occurrence code 2 1 1 

Start date January 1988

January 1988;

Discontinued 

October 2014

January 1988

Operation schedule Continuous Continuous Continuous

Sampling season All year All year All year

Monitoring objective(s) NAAQS comparison NAAQS comparison NAAQS comparison

Probe height 4.3 meters 4.0 meters 4.0 meters

Height of obstruction not on roof n/a n/a n/a

Distance:

from supporting structure 1.5 meters 1.2 meters 1.2 meters

from obstructions not on roof None None None

from obstructions on roof n/a n/a n/a

from trees 28 meters 27 meters 27 meters

to furnace or incinerator flue n/a n/a n/a

between collocated monitors n/a n/a n/a

Flow rate 16.7 l/min 1440-2160 cc/min 720-880 cc/min

Unrestricted airflow 360 degrees 360 degrees 360 degrees

Probe material n/a Teflon Teflon

Residence time n/a 3 seconds 3 seconds

Proposed modifications 

within the next 18 months? None None None

Is the monitor suitable for 

comparison against the annual PM2.5

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)

Bi-weekly 

verifications and 

quarterly audits

n/a n/a

one-point QC check (gaseous) n/a Bi-weekly (3 point) Bi-weekly (3 point)

Last: 

annual performance evaluation 

(gaseous) n/a

03-20-14

06-06-14

09-11-14

03-20-14

06-06-14

09-11-14

10-30-14

two semi-annual flow rate audits 

(PM) 

03-27-14

06-23-14

09-24-14

12-02-14

n/a n/a
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 37 

South Reno (continued)

Wind Speed Wind Direction

Ambient 

Temperature

Site type Population Exposure Population Exposure Population Exposure

Monitor type SLAMS SLAMS SLAMS

Network Affiliation n/a n/a n/a

Spatial scale Neighborhood Neighborhood Neighborhood

Sampling method Met One 50.5H Met One 50.5H YSI Series 700

Analysis method Sonic Anemometer Sonic Anemometer Electronic Average

Method code 061 061 014

Parameter code 61102 61101 64101

Parameter occurrence code 1 1 1 

Start date January 2014 January 2014 January 2014

Operation schedule Continuous Continuous Continuous

Sampling season All year All year All year

Monitoring objective(s) Public Information Public Information Public Information

Probe height 10.0 meters 10.0 meters 5.0 meters

Height of obstruction not on roof n/a n/a n/a

Distance:

from supporting structure 10.0 meters 10.0 meters 5.0 meters

from obstructions not on roof None None None

from obstructions on roof n/a n/a n/a

from trees 27 meters 27 meters 27 meters

to furnace or incinerator flue n/a n/a n/a

between collocated monitors n/a n/a n/a

Flow rate 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 PM2.5

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) n/a n/a n/a

Last: 

annual performance evaluation 

(gaseous & meteorological) 

03-20-14

06-27-14

09-23-14

12-02-14

03-20-14

06-27-14

09-23-14

12-02-14

03-20-14

06-27-14

09-23-14

12-02-14

two semi-annual flow rate audits 

(PM) n/a n/a n/a
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 38 

Sparks

The Sparks site is located on US Postal Service property at 750 Fourth Street. The site is surrounded by 

commercial property, a residential 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 growth 

affecting siting criteria.

Site name: Sparks

AQS ID: 32-031-1005

Geographical coordinates: 39o 32.455’N, 119o 44.806’W

Location: East end of US Postal Service back parking lot.

Street address: 

750 4th Street

Sparks, NV 89431

County: Washoe

Distance to road: 50 meters to Prater Way and 103 meters to 4th Street.

Traffic count: 13,500 AADT (2011-2013)

(NDOT ATR 0310497 - Prater Way, 100 feet east of Pyramid Way)

Groundcover: Paved / Vegetated / Decomposed Granite

Representative area: Reno-Sparks MSA

Figure 22 

Sparks Monitoring Station
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 39 

Figure 23 

Sparks Monitoring Site Vicinity Map

Figure 24 

Sparks Monitoring Site Vicinity Aerial
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 40 

Sparks (continued)

PM10 PM2.5 PM10-2.5 CO

Site type Population Exposure Highest 

Concentration

Highest 

Concentration

Highest 

Concentration

Monitor type SLAMS SLAMS SLAMS SLAMS

Network Affiliation n/a n/a n/a n/a

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood

Sampling method Met One BAM 1020 Met One BAM 1020 Met One BAM 1020 

Coarse Pair TAPI 300EU

Analysis method Beta Attenuation Beta Attenuation Beta Attenuation GFC

Method code 122 170 185 093

Parameter code 81102 88101 86101 42101

Start date April 1988 January 2012 July 2014 January 1980

Parameter occurrence code 1 1 1 1 

Operation schedule Continuous Continuous Continuous Continuous

Sampling season All year All year All year All year

Monitoring objective(s) NAAQS comparison NAAQS comparison NAAQS comparison NAAQS comparison

Probe height 4.5 meters 4.3 meters 4.3 meters 4.6 meters

Height of obstruction not on roof n/a n/a n/a n/a

Distance:

from supporting structure 1.4 meters 1.5 meters 1.5 meters 1.7 meters

from obstructions not on roof None None None None

from obstructions on roof n/a n/a n/a n/a

from trees 26 meters 26 meters 26 meters 27 meters

to furnace or incinerator flue n/a n/a n/a n/a

between collocated monitors n/a n/a n/a n/a

Flow rate 16.7 l/min 16.7 l/min 16.7 l/min 1440-2160 cc/min

Unrestricted airflow 360 degrees 360 degrees 360 degrees 360 degrees

Probe material n/a n/a n/a Teflon

Residence time n/a n/a n/a 5 seconds

Proposed modifications 

within the next 18 months? None None None None

Is the monitor suitable for 

comparison against the annual PM2.5

NAAQS?

n/a Yes n/a n/a

Frequency of:

flow rate verification for manual 

samplers audit (PM) n/a n/a n/a n/a

flow rate verification for 

automated analyzers audit (PM)

Bi-weekly and 

quarterly audits

Bi-weekly and 

quarterly audits

Bi-weekly and 

quarterly audits n/a

one-point QC check (gaseous) n/a n/a n/a Bi-weekly (3 point)

Last: 

annual performance evaluation 

(gaseous) n/a n/a n/a

03-18-14

06-05-14

09-10-14

10-28-14

two semi-annual flow rate audits 

(PM) 

03-24-14

06-24-14

09-24-14

11-12-14

03-24-14

06-24-14

09-24-14

11-12-14

03-24-14

06-24-14

09-24-14

11-12-14

n/a
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 41 

Sparks (continued)

O3 Wind Speed Wind Direction

Ambient 

Temperature

Site type Highest 

Concentration Population Exposure Population Exposure Population Exposure

Monitor type SLAMS SLAMS SLAMS SLAMS

Network Affiliation n/a n/a n/a n/a

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood

Sampling method TAPI T400 Met One 50.5H Met One 50.5H YSI Series 700

Analysis method UV Photometry Sonic Anemometer Sonic Anemometer Electronic Average

Method code 087 061 061 014

Parameter code 44201 61102 61101 64101

Parameter occurrence code 1 1 1 1 

Start date January 1979 January 2014 January 2014 January 2014

Operation schedule Continuous Continuous Continuous Continuous

Sampling season All year All year All year All year

Monitoring objective(s) NAAQS comparison Public Information Public Information Public Information

Probe height 4.6 meters 10.0 meters 10.0 meters 5.0 meters

Height of obstruction not on roof n/a n/a n/a n/a

Distance:

from supporting structure 1.7 meters 10.0 meters 10.0 meters 5.0 meters

from obstructions not on roof None None None None

from obstructions on roof n/a n/a n/a n/a

from trees 26 meters 27 meters 27 meters 27 meters

to furnace or incinerator flue n/a n/a n/a n/a

between collocated monitors n/a n/a n/a n/a

Flow rate 720-880 cc/min n/a n/a n/a

Unrestricted airflow 360 degrees 360 degrees 360 degrees 360 degrees

Probe material Teflon n/a n/a n/a

Residence time 5 seconds n/a n/a n/a

Proposed modifications 

within the next 18 months? None None None None

Is the monitor suitable for 

comparison against the annual PM2.5

NAAQS?

n/a n/a n/a n/a

Frequency of:

flow rate verification for manual 

samplers audit (PM) n/a n/a n/a n/a

flow rate verification for 

automated analyzers audit (PM) n/a n/a n/a n/a

one-point QC check (gaseous) Bi-weekly (3 point) n/a n/a n/a

Last: 

annual performance evaluation 

(gaseous & meteorological) 

03-18-14

06-05-14

09-10-14

10-28-14

03-18-14

06-27-14

09-23-14

12-17-14

03-18-14

06-27-14

09-23-14

12-17-14

03-18-14

06-27-14

09-23-14

12-17-14

two semi-annual flow rate audits 

(PM) n/a n/a n/a n/a
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 42 

Toll

The Toll Road site is located at 684A State Route 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 for CO.

Site name: Toll

AQS ID: 32-031-0025

Geographical coordinates: 39o 23.990’N, 119o 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: 11,767 AADT (2011-2013)

(NDOT ATR 0310137 - SR 341, 0.4 miles east of US 395)

Groundcover: Paved parking lot / Dirt

Representative area: Reno-Sparks MSA

Figure 25 

Toll Monitoring Station
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 43 

Figure 26 

Toll Monitoring Site Vicinity Map

Figure 27 

Toll Monitoring Site Vicinity Aerial
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 44 

Toll (continued)

PM10 CO O3

Site type Population Exposure Source Oriented Population Exposure

Monitor type SLAMS SLAMS SLAMS

Network Affiliation n/a n/a n/a

Spatial scale Neighborhood Middle Neighborhood

Sampling method Met One 

BAM 1020 API 300 TAPI 400E

Analysis method Beta Attenuation GFC UV Photometry

Method code 122 093 087

Parameter code 81102 42101 44201

Parameter occurrence code 2 1 1 

Start date March 1996 March 1996 March 1996

Operation schedule Continuous Continuous Continuous

Sampling season All year All year All year

Monitoring objective(s) NAAQS comparison NAAQS comparison NAAQS comparison

Probe height 4.4 meters 4.0 meters 4.0 meters

Height of obstruction not on roof n/a n/a n/a

Distance:

from supporting structure 1.5 meters 1.2 meters 1.2 meters

from obstructions not on roof None None None

from obstructions on roof n/a n/a n/a

from trees 28 meters 28 meters 28 meters

to furnace or incinerator flue n/a n/a n/a

between collocated monitors n/a n/a n/a

Flow rate 16.7 l/min 720-880 cc/min 720-880 cc/min

Unrestricted airflow 360 degrees 360 degrees 360 degrees

Probe material n/a Teflon Teflon

Residence time n/a 7 seconds 7 seconds

Proposed modifications 

within the next 18 months? None None None

Is the monitor suitable for 

comparison against the annual PM2.5 

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)

Bi-weekly and 

quarterly audits n/a n/a

one-point QC check (gaseous) n/a Bi-weekly (3 point) Bi-weekly (3 point)

Last: 

annual performance evaluation 

(gaseous) n/a

03-20-14

06-11-14

09-11-14

10-30-14

03-20-14

06-11-14

09-11-14

10-30-14

two semi-annual flow rate audits 

(PM) 

03-27-14

06-23-14

09-24-14

12-02-14

n/a n/a
Washoe County Health District - AQMD July 1, 2015 

2015 Ambient Air Monitoring Network Plan 45 

Toll (continued)

Wind Speed Wind Direction

Ambient 

Temperature

Site type Population Exposure Population Exposure Population Exposure

Monitor type SLAMS SLAMS SLAMS 

Network Affiliation n/a n/a n/a

Spatial scale Neighborhood Neighborhood Neighborhood

Sampling method Met One 50.5H Met One 50.5H YSI Series 700

Analysis method Sonic Anemometer Sonic Anemometer Electronic Average

Method code 061 061 014

Parameter code 61102 61101 64101

Parameter occurrence code 1 1 1 

Start date January 2014 January 2014 January 2014

Operation schedule Continuous Continuous Continuous

Sampling season All year All year All year

Monitoring objective(s) Public Information Public Information Public Information

Probe height 10.0 meters 10.0 meters 5.0 meters

Height of obstruction not on roof n/a n/a n/a

Distance:

from supporting structure 10.0 meters 10.0 meters 5.0 meters

from obstructions not on roof None None None

from obstructions on roof n/a n/a n/a

from trees 30 meters 30 meters 30 meters

to furnace or incinerator flue n/a n/a n/a

between collocated monitors n/a n/a n/a

Flow rate 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 PM2.5

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) n/a n/a n/a

Last: 

annual performance evaluation 

(gaseous & meteorological) 

03-20-14

06-27-14

09-24-14

11-21-14

03-20-14

06-27-14

09-24-14

11-21-14

03-20-14

06-27-14

09-24-14

11-21-14

two semi-annual flow rate audits 

(PM) n/a n/a n/a
Appendix A

Network Modification Request/Approval

South Reno SLAMS CO Closure
s "' . "' 0 ~ 

i5 " " "' 

WASHOE COUNTY HEALTH DISTRICT 

-

'1-otcou-v,_ 

. . 

. • ;:;;VAP'r ~ AIR QUALITY MANAGEMENT DIVISION PublicHealth 

June 11, 2014 

Meredith Kurpius 

Manager, Air Quality Analysis Office 

U.S. Environmental Protection Agency, Region IX 

75 Hawthorne Street, AIR-7 

San Francisco, CA 94105 

Subject: Proposed Modification to the Carbon Monoxide Monitoring Network 

Dear Ms. Kurpius: 

Prevent. Promote. Protect. 

Pursuant to 40 CPR 58.14(c), the Washoe County Health District, Air Quality Management Division 

(AQMD) requests review and approval for a modification to the existing carbon monoxide (CO) 

monitoring network. The AQMD is proposing to: 

• Discontinue CO monitoring at the South Reno SLAMS station (AQS ID 32-031-0020). 

Discontinuation of CO monitoring at the South Reno SLAMS station is based on this monitor never 

exceeding or violating 1-hour nor the 8-hour CO National Ambient Air Quality Standard (Table 1 ). 

2004-2013 Since 1990 

1 -hour 3.1 8.4 

8 -hour 2.1 5.3 

Table 1. Highest CO concentrations (ppm) at South Reno (32-031-0020) 

over the past ten years and since reporting began in 1990. 

The South Reno CO monitor will be removed and data from the Reno 3 (-4 miles geodesic distance) 

and Toll (-5 miles geodesic distance) sites will be used for comparative CO data as needed. The 

AQMD is proposing to complete this system modification by October 1, 2014. After incorporating 

this system modification, the CO monitoring network will continue to meet the minimum monitoring 

requirements specified in 40 CPR 58, Appendix D. 

If you require additional information, feel free to contact me or Mr. Craig Petersen of my staff at (775) 

784-7200. 

Sincerely, 

Daniel Inouye 

Branch Chief 

cc: Katherine Hoag, EPA Region IX 

Craig Petersen, AQMD 

1001 EAST NINTH STREET I P.O. BOX 11130, RENO, NEVADA 89520 (775) 784-7200 FAX (775) 784-7225 

www.OurCleanAir.com 

WASHOE COUNTY IS AN EQUAL OPPORTUNITY EMPLOYER 
~O Sr4,

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

REGION IX

~ PRO~ 75 Hawthorne Street

San Franc~~ 9~f~39Ol

Mr. Daniel Inouye

Chief, Monitoring and Planning

Air Quality Management Division

Washoe County Health District

P.O. Box 11130

Reno, Nevada 89520-0027

Dear Mr. Inouye:

This letter is in response to your June 2014 request for approval for the discontinuation of State Local

Air Monitoring Station (SLAMS) carbon monoxide (CO) monitoring at the South Reno site (AQS ID:

32-031-0020). Washoe County Health District Air Quality Management Division proposed the

discontinuation of CO monitoring at the South Reno site in its Ambient Air Monitoring Network Plan

they submitted to the U.S. Environmental Protection Agency (EPA) in July 2014 (Page 8). The plan was

available for public inspection prior to its submittal to EPA and received no public comments on this

proposed monitoring network change.

Per 40 CFR §58.14, monitoring agencies are required to obtain EPA approval for the discontinuation of

SLAMS monitors. According to certified data submitted to EPA’s Air Quality System (AQS) since

beginning operation in 1990, the CO monitor at South Reno has never recorded a violation of any CO

National Ambient Air Quality Standards (NAAQS). Based on data from 2009-20 13. Our statistical

analysis (see enclosed) demonstrates that there is a less than 10 percent probability of exceeding 80

percent of any CO NAAQS at this site during the next three years (2014-2016). Concentrations captured

for a portion of 2014 continue to show low values. These monitors are not specifically required by an

attainment or maintenance plan and you continue to operate five other CO sites throughout Washoe

County, which is more than the minimum required SLAMS CO sites as described in 40 CFR §58,

Appendix D. Therefore, the site closure meets the criteria set forth in 40 CFR §58.14(c)(1) for SLAMS

monitor discontinuation.

Based on this analysis, EPA approves your request to discontinue CO monitoring at South Reno. Please

include this modification and EPA’s approval in your next annual network plan. If you have any

questions, please contact me at (415) 947-4534 or Katherine Hoag (Hoag.Katherine@epa.gov) at (415)

972-3970.

Sincerely,

Meredith Kurpius

Manager, Air Quality Analysis Office

Enclosure: EPA analysis of CO data

Printed on Recycled Paper
Enclosure: EPA analysis of Co data

Site Year 1 Max Year 2 Max Year 3 Max Year 4 Max YearS Max Average Max Std. Dcv. Students t value Number of Data 90% U

South Reno (ppm) (ppm) (ppm) (ppm) (ppm) (ppm) s (90% confidence) Values (n) (p

32-031-0020 2009 2010 2011 2012 2013 2009-2013

1-hr CO (35 ppm) 2 1.9 1.6 1.2 3.1 1.96 0.71 2.13 5 2

8-hr CO (9 ppm) 1.6 1.6 1.1 0.8 1.5 1.32 0.36 2.13 5 
Appendix B

Network Modification Request/Approval

Galletti SLAMS Closure

Spanish Springs SPM Site Initiation
AIR QUALITY MANAGEMENT

1001 East Ninth Street I P.O. Box 11130 I Reno, Nevada 89520

AQM Office: 775-784-7200 I Fax: 775-784-7225 I washoecounty.us/health

Serving Reno, Sparks and all of Washoe County, Nevada. Washoe County is an Equal Opportunity Employer.

March 5, 2015

Meredith Kurpius

Manager, Air Quality Analysis Office

U.S. Environmental Protection Agency, Region IX

75 Hawthorne Street, AIR-7 

San Francisco, CA 94105

Subject: Proposed Modification to the Washoe County Health District, Air Quality Management 

Division Ambient Air Monitoring Network

Dear Ms. Kurpius:

Pursuant to 40 CFR 58.14, the Washoe County Health District, Air Quality Management Division 

(AQMD) requests review and approval for a modification to the existing ambient air monitoring 

network. The AQMD is proposing to:

1. Closure of the Galletti SLAMS (AQS ID 32-031-0022) including discontinuation of all 

monitors (CO, PM10, PM2.5, PM10-2.5, and meteorology); and 

2. Initiate a Special Purpose Monitor (SPM) for 18 months and establishing a State and 

Local Air Monitoring Stations (SLAMS) in the Spanish Springs area of southern Washoe 

County to monitor Ozone, PM10, PM2.5, PM10-2.5, and meteorology.

In November 2014, the Nevada Department of Transportation (NDOT) informed the AQMD of an 

emergency paving project requiring the Galletti SLAMS to be removed its current location. Final 

quality assurance verifications were conducted during the week of November 17, 2014. CO and PM 

data through the final verifications will be submitted to AQS. Data capture will not meet 75 percent 

for the October-December 2014 reporting period. As of March 1, 2015, the emergency paving project 

has not been completed. NDOT’s paving project and reconfiguration will make it extremely difficult 

to return to Galletti’s original location.

The proposed modifications are consistent with the AQMD 2010 Network Assessment and 2014 

Annual Network Plan. Attached are data demonstrations (Appendices A, B, C) and an Excel 

spreadsheet (Network Modification Request (2015-03-05).xlsx) to support AQMD’s proposal to close

Galletti. Additional case-by-case justifications for the closure of Galletti include proximity to trees

and NDOT’s “dirt pile” operation. PM10 and PM2.5 concentrations were impacted by the 

American/Rim (2013) and King (2014) Fires. These data are flagged in AQS with either 

Informational or Request to Exclude flags. An Exceptional Events Demonstration for the 

American/Rim Fires was submitted to EPA Region IX in 2014. A demonstration for the King Fire is 

expected to be submitted in Fall 2015. 
Subject: Network Modification Request 

Date: March 5, 201 5 

Page 2 of 14 

If you require additional information, feel free to contact me or Mr. Craig Petersen at (775) 784-7200. 

Sincerely, 

·-v~~ 

Daniel Inouye 

Monitoring and Planning Branch Chief 

cc: Katherine Hoag, EPA Region IX 

Craig Petersen, AQMD 

Jennifer Budge, Washoe County Regional Parks and Open Space 
Subject: Network Modification Request

Date: March 5, 2015

Page 3 of 14

Attachment A

40 CFR 58.14(c)(1) Criteria Test for the Galletti SLAMS with and without 

2013 American/Rim Fires Exceptional Events 
Subject: Network Modification Request

Date: March 5, 2015

Page 4 of 14

Year 1 Year 2 Year 3 Year 4 Year 5 Ave Max

5 Year Maximums with EE (2009-13)

Parameter

Averaging 

Times 2009 2010 2011 2012 2013 2009-13 Std. Dev. s

Student's t value 

(90% 

confidence)

Number of Data 

Values (n )

90% Upper CINAAQS80% NAAQSTest

CO (ppm) 1-hr 3.1 2.7 2.8 2.9 2.6 2.82 0.19 2.13 5 3.0 35 28.0 PASS

CO (ppm) 8-hr 2.6 2.3 1.9 2.1 2.2 2.22 0.26 2.13 5 2.5 9 7.2 PASS

PM10 (ug/m3) 24-hr 91 87 113 77 131 99.80 21.84 2.13 5 120.6 150 120.0 FAIL

PM2.5 (ug/m3) 24-hr 100.2 100.20 #DIV/0! 2.13 5 #DIV/0! 35 28.0 #DIV/0!

PM2.5 (ug/m3) Annual 11.5 11.50 #DIV/0! 2.13 5 #DIV/0! 12 9.6 #DIV/0!

Year 1 Year 2 Year 3 Year 4 Year 5 Ave Max

5 Year Maximums without EE (2009-13)

Parameter

Averaging 

Times 2009 2010 2011 2012 2013 2009-13 Std. Dev. s

Student's t value 

(90% 

confidence)

Number of Data 

Values (n )

90% Upper CINAAQS80% NAAQSTest

CO (ppm) 1-hr 3.1 2.7 2.8 2.9 2.6 2.82 0.19 2.13 5 3.0 35 28.0 PASS

CO (ppm) 8-hr 2.6 2.3 1.9 2.1 2.2 2.22 0.26 2.13 5 2.5 9 7.2 PASS

PM10 (ug/m3) 24-hr 91 87 113 77 117 97.00 17.26 2.13 5 113.4 150 120.0 PASS

PM2.5 (ug/m3) 24-hr 33.8 33.80 #DIV/0! 2.13 5 #DIV/0! 35 28.0 #DIV/0!

PM2.5 (ug/m3) Annual 9.5 9.50 #DIV/0! 2.13 5 #DIV/0! 12 9.6 #DIV/0!
Subject: Network Modification Request

Date: March 5, 2015

Page 5 of 14

Attachment B 

Closure of the Galletti SLAMS including discontinuing CO, PM10, PM2.5, and PM10-2.5 monitoring
Subject: Network Modification Request

Date: March 5, 2015

Page 6 of 14

Carbon Monoxide

Discontinuation of CO monitoring is based on criteria in 40 CFR 58.14(c)(1), including the points 

below. 

1. The monitor has shown attainment during the previous five years (2009-2013), 

specifically:

a. The monitor has never exceeded the 1-hour NAAQS of 35 ppm, and

b. The monitor last exceeded the 8-hour NAAQS in 1991. 

2. The monitor has a probability of less than 10 percent of exceeding 80 percent of the 

current 1-hour and 8-hour NAAQS.

Table 1

40 CFR 58.14(c)(1) Criteria Test

(2009-13)

Averaging 

Time

90% Upper CI

(ppm)

80% of NAAQS

(ppm) Criteria Met?

1-hour 3.0 28.0 Yes

8-hour 2.5 7.2 Yes

3. The monitor is not required in the: 

a. EPA approved CO maintenance plan, nor 

b. Second-ten year maintenance plan submitted to EPA on November 7, 2014. 

4. The monitor is not the only CO monitor in the Truckee Meadows CO maintenance area. 

CO monitoring will continue at four stations, including the Reno3 (32-031-0016) and 

Sparks (32-031-1005) stations which are approximately 1.5 miles west and 2.1 miles east 

respectively, of the Galletti SLAMS.

5. The requirements of Appendix D will continue to be met. 

6. In addition, EPA identified trees that affect the monitor’s spatial scale (See Technical 

System Audit Report (September 4-6, 2013) August 2014, Finding 5). 

PM10

Discontinuation of PM10 monitoring is based on criteria in 40 CFR 58.14(c), specifically the case-bycase criteria and including the points below. 

1. The monitor has shown attainment during the previous five years (2009-2013), 

specifically the monitor last exceeded the 24-hour NAAQS in 2005. (Note: One PM10

exceedance occurred in 2014 from the King Fire. An Exceptional Events Demonstration 

is expected to be submitted to EPA Region IX in Fall 2015.) 

2. The monitor does not have a probability of less than 10 percent of exceeding 80 percent 

of the current 24-hour NAAQS of 150 μg/m3. However, the monitor will pass this test if 

154 μg/m3 is used as the NAAQS. The monitor will also pass if Informationally flagged 

data from the 2013 American/Rim Fires are excluded from this test. 
Subject: Network Modification Request

Date: March 5, 2015

Page 7 of 14

Table 2 

40 CFR 58.14(c)(1) Criteria Test

(2009-13)

90% Upper CI

(μg/m3)

80% of NAAQS

(μg/m3) Criteria Met?

24-hour 120.6 120.0 No

3. The monitor is not required in the: 

a. “Serious” PM10 Attainment Plan submitted to EPA on August 5, 2002, , nor 

b. Redesignation Request and Maintenance Plan submitted to EPA on November 7, 

2014. 

4. The monitor is not the only PM10 monitor in the Truckee Meadows PM10 non-attainment 

area. PM10 monitoring will continue at five stations, including the Reno3 (32-031-0016) 

and Sparks (32-031-1005) stations which are approximately 1.5 miles west and 2.1 miles 

east respectively, of the Galletti SLAMS.

5. Closure of the Galletti SLAMS is a recommendation in the 2010 Network Assessment. 

6. The requirements of Appendix D will continue to be met. 

7. In addition, EPA identified trees and a minor PM source that affect the monitor’s spatial 

scale (See Technical System Audit Report (September 4-6, 2013) August 2014, Findings 

5 and 6). 

8. In conjunction with the proposed Spanish Springs SPM/SLAMS, the overall balance of 

the PM network Area Served and Population Served distributions will be improved. 

PM2.5

Discontinuation of PM2.5 monitoring is based on criteria in 40 CFR 58.14(c), specifically the case-bycase criteria and including the points below.

1. The monitor began sampling in 2013 and does not have a valid design value to compare 

against the 24-hour and annual PM2.5 NAAQS. (Note: PM2.5 concentrations were impacted 

by the American/Rim (2013) and King (2014) Fires. These data are flagged in AQS with 

either Informational or Request to Exclude flags. An Exceptional Events Demonstration for 

the American/Rim Fires was submitted to EPA Region IX in 2014. A Demonstration for the 

King Fire is expected to be submitted in Fall 2015.) 

2. All geographic areas of Washoe County are currently designated as 

“Unclassifiable/Attainment” for the 24-hour and annual PM2.5 NAAQS, therefore the 

monitor is not required in any attainment nor maintenance plan. 

3. The monitor is not the only PM2.5 monitor in the Truckee Meadows. PM2.5 monitoring 

will continue at two stations, including the Reno3 (32-031-0016) and Sparks (32-031-

1005) stations which are approximately 1.5 miles west and 2.1 miles east respectively, of 

the Galletti SLAMS. 

4. Closure of the Galletti SLAMS is a recommendation in the 2010 Network Assessment. 

5. The requirements of Appendix D will continue to be met. 

6. EPA identified trees and a minor PM source that affects the monitor’s spatial scale (See 

Technical System Audit Report (September 4-6, 2013) August 2014, Findings 5 and 6). 

7. In conjunction with the proposed Spanish Springs SPM/SLAMS, the overall balance of 

the PM network Area Served and Population Served distributions will be improved. 
Subject: Network Modification Request

Date: March 5, 2015

Page 8 of 14

Attachment C 

Initiation of an SPM/SLAMS in Spanish Springs to monitor Ozone, PM10, PM2.5, PM10-2.5, and 

Meteorology
Subject: Network Modification Request

Date: March 5, 2015

Page 9 of 14

Initiation of an SPM/SLAMS in the Spanish Springs area (Lazy 5 Regional Park)

Initiating a SPM/SLAMS station to monitor Ozone, PM10, PM2.5, PM10-2.5, and Meteorology is based 

on 40 CFR 58.14(b). The AQMD is requesting approval of the Spanish Springs SPM/SLAMS to be 

in conjunction with closure of the Galletti SLAMS. The points below support the AQMD request. 

1. An SPM/SLAMS station in the Spanish Springs area is a recommendation in the 2010 

Network Assessment.

2. In conjunction with the proposed Galletti SLAMS closure, the overall balance of the PM 

network Area Served and Population Served distributions will be improved. 

3. In conjunction with the proposed Galletti SLAMS closure, the AQMD will maintain 

staffing and budgetary capacity. This is consistent with the “Zero-Sum Game” - 

“Monitoring Network Assessments: Best Practices and Lessons Learned” presented at the 

2014 National Ambient Air Monitoring Conference. 

4. AQMD has received preliminary approval from the Washoe County Regional Parks and 

Open Space Department to establish an SPM/SLAMS at the Lazy 5 Regional Park in 

Spanish Springs. AQMD is researching other requirements (i.e., Parks Commission 

approval, availability of power, right of entry, etc.). 

5. The proposed location will not prohibit any planned future development included in the 

Lazy 5 Park Master Plan.
Subject: Network Modification Request

Date: March 5, 2015

Page 10 of 14

Figure 1 
Subject: Network Modification Request

Date: March 5, 2015

Page 11 of 14

Proposed Spanish Springs SPM/SLAMS

Detailed Site Information

Site Name: Spanish Springs

AQS ID: 31-031-xxxx

Geographical coordinates: 39° 37.287’ N, 119° 43.124’ W

Location: North side of Lazy 5 Regional Park

Street address: 7200 Pyramid Way

Sparks, NV 89436

County: Washoe

Distance to road: 460 meters to Pyramid Hwy

Traffic count: 10,033 AADT (2011-2013)

(NDOT ATR 0311032 - SR445, 0.375 miles north of Sunset Spring Road)

Groundcover: Paved / Vegetated

Representative area: Reno-Sparks MSA

Figure 2 

Proposed Spanish Springs Monitoring Station (looking north)
Subject: Network Modification Request

Date: March 5, 2015

Page 12 of 14

Proposed Spanish Springs SPM/SLAMS

PM10 PM2.5 PM10-2.5 Ozone

Site type Population 

Exposure

Population 

Exposure

Population 

Exposure

Population 

Exposure

Monitor type SLAMS SLAMS SLAMS SLAMS

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood

Sampling method Met One BAM 

1020

Met One BAM 

1020

Met One BAM 

1020 TAPI T400

Analysis method Beta Attenuation Beta Attenuation Beta Attenuation UV Photometry

Method code 122 170 185 087

Parameter code 81102 & 85101 88101 86101 44201

Parameter occurrence code 1 1 1 1 

Start date 07/01/15 (est) 07/01/15 (est) 07/01/15 (est) 07/01/15 (est)

Operation schedule Continuous Continuous Continuous Continuous

Sampling season All year All year All year All year

Monitoring objective(s) NAAQS 

comparison

NAAQS 

comparison Research Support NAAQS comparison

Probe height 4.8 meters 4.8 meters 4.8 meters 4.0 meters

Height of obstruction not on roof 14.5 meters 14.5 meters 14.5 meters 14.5 meters

Distance:

from obstructions not on roof 30.5 meters 30.5 meters 30.5 meters 30.5 meters

from obstructions on roof n/a n/a n/a n/a

from trees

to furnace or incinerator flue n/a n/a n/a n/a

between collocated monitors n/a n/a n/a n/a

from supporting structure 2.0 meters 2.0 meters 2.0 meters 1.2 meters

Flow rate 16.7 l/min 16.7 l/min 16.7 l/min 720-880 cc/min

Unrestricted airflow 360 degrees 360 degrees 360 degrees 360 degrees

Probe material n/a n/a n/a Teflon

Residence time n/a n/a n/a 13 seconds

Proposed modifications within the 

next 18 months?

Is the monitor suitable for 

comparison against the annual 

PM2.5 NAAQS?

n/a Yes n/a n/a

Frequency of:

flow rate verification for manual 

samplers audit (PM) n/a 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

n/a

one-point QC check (gaseous) n/a n/a n/a Bi-weekly (3 point)
Subject: Network Modification Request

Date: March 5, 2015

Page 13 of 14

Figure 3 

Proposed Spanish Springs Monitoring Station

Fence and Shelter Footprint

Figure 4 

Proposed Spanish Springs Monitoring Station

Distance to Roadway

Approx 100 feet

Building Height Approx 47.5 feet

Approx 460 meters
Subject: Network Modification Request

Date: March 5, 2015

Page 14 of 14

Figure 5 

Proposed Spanish Springs Monitoring Station

Air Monitoring Shelter Description

Monitoring Station

1. Sani-Hut built shelter, 8’ x 12’, skid mounted.

2. 10 meter, T-135 telescoping Aluma Tower with building brackets (no guy wiring).

3. 100A, single-phase 120V/240V overhead power service.

4. Black iron security fence, 16’ x 24’ perimeter, 8’ in height, 3⁄4” square pressed point picket top.

Instrumentation (inside shelter)

1. Teledyne-API T400 ozone analyzer.

2. Met One BAM 1020 continuous PM10 monitor.

3. Met One BAM 1020 continuous PM2.5 monitor.

4. ESC 8832 data logger.

Instrumentation (on tower)

1. Met One 50.5H sonic anemometer.

2. YSI 700 ambient temperature sensor.

Instrumentation (on roof)

1. Met One BAM 1020 PM10 inlet.

2. Met One BAM 1020 PM2.5 inlet.

3. Avant Wireless broadband antenna.

Interior Heating/Cooling

1. Baseboard heater.

2. Window mounted A/C unit.
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 

REGION IX 

75 Hawthorne Street 

San Francisco, CA 94105-3901 

Mr. Daniel Inouye 

Chief, Monitoring and Planning 

Air Quality Management Division 

Washoe County Health District 

P.O. Box 11130 

Reno, Nevada 89520-0027 

Dear Mr. Inouye: 

APR 2 2 2015 

This letter is in response to your March 5, 2015 request for approval for the discontinuation of 

SLAMS (State or Local Air Monitoring Station) CO, PM10, PM2.s, and PM10-2.s monitoring at the 

Galletti site (AQS ID 32-031-0022) and for the initiation of a new SLAMS in the Spanish 

Springs area. Washoe County Health District Air Quality Management Division (Washoe 

County AQMD) proposed the relocation of the entire Galletti monitoring site in its Ambient Air 

Monitoring Network Plan submitted to the U.S. Environmental Protection Agency (EPA) in July 

2014 (page 8). The plan was available for public inspection prior to its submittal to EPA and 

received no public comments on this proposed monitoring network change. EPA did not act on 

the request as part of the network plan approval, as the network plan did not contain sufficient 

information. 

As noted in Washoe County AQMD's request, the Galletti site was forced to close in late 2014 

due to an emergency paving project undertaken by the Nevada Department of Transportation. In 

addition, there are trees within 10 meters of monitor inlets and probes at the Galletti site, which 

does not conform to 40 CFR §58 Appendix E siting. This siting issue was a finding in EPA's 

technical systems audit of Washoe County AQMD in September 2013. EPA also recommended 

that Washoe County AQMD evaluate the appropriate spatial scale for PM measurements given 

the presence of a nearby minor particulate matter source. Washoe County AQMD has been 

unable to resolve these 40 CFR 5§8 Appendix E siting issues at the existing site. 

The CO, PM10, PM2.s, and PM10-2.s monitors at the Galletti site are not specifically required by an 

attainment or maintenance plan and Washoe County will continue to meet the minimum required 

SLAMS sites as described in 40 CFR §58, Appendix D for each of these pollutants after this site 

is closed. Washoe County AQMD will also continue to monitor for PM2.s at two SLAMS, for 

PM10 at five ST ,AMS, and for CO at four SLAMS. All three pollutants will continue to be 

monitored at Reno3 (32-031-0016) and Sparks (32-031-1005) which are approximately 1.5 miles 

west and 2.1 miles east, respectively, of the Galletti site. 

Per 40 CFR §58.14, monitoring agencies are required to obtain EPA approval for the 

discontinuation of SLAMS monitors. Washoe County AQMD's statistical analysis, based on 

2009-2013, demonstrates that there is a less than 10 percent probability of exceeding 80 percent 

of any CO NAAQS (National Ambient Air Quality Standards) at this site during the next three 

Printed on Recycled Paper 
years (2014-2016). 2014 concentrations continue to show low values, with a maximum one-hour 

concentration of 2.8 parts per million. EPA approves the closure for CO at Galletti in accordance 

with 40 CFR §58.14(c)(l). 

Washoe County AQMD's statistical analysis for PM10 demonstrates, using the annual maximum 

24-hour concentrations from 2009-2013, that there is just over a 10 percent probability of 

exceeding 80 percent of the PM10 NAAQS at this site during the next three years (2014-2016). 

The 90 percent confidence interval (CI) associated with a 10 percent probability of exceeding 80 

percent of any PM10 NAAQS is 120.0 μg/m3, and the 2009-2013 time period has a CI of 120.6 

μg/m3. If the days in 2013 that are flagged as exceptional events due to the American and Rim 

Fires are removed from the dataset, the 2009-2013 data demonstrate that there is a less than 10 

percent probability of exceeding 80 percent of the PM10 NAAQS. Also, the statistical analysis of 

2008-2012 data meets the criteria for having less than a 10 percent probability of exceeding 80 

percent of the PM10 NAAQS, with a CI of 103.7 μg/m3. 

Since the PM2.s monitor at Galletti ran from January 2013 through mid-November 2014, there is 

not enough historical information to evaluate the closure under 40 CFR §58.14(c)(l). Since 

insufficient data are available to calculate a single design value, the annual mean and 93th 

percentiles were compared between Galletti and the PM2.s monitor at Sparks (32-031-1005). As 

previously noted, Sparks is 2.1 miles east of the Galletti site. Based on 2013 and preliminary 

2014 data, the armual means are higher at Sparks than at Galletti, and the preliminary 2014 93th 

percentiles are higher at Sparks than at Galletti. The 2013 93th percentiles at Sparks and Galleti 

are similar (38.2 μg/m3 and 41.1 μg/m3 respectively) and are higher at Sparks than at Galletti 

when flagged exceptional events due to the American and Rim fires are excluded. 

While EPA has not concurred on the Galletti PM10 and PM2.s flagged exceptional events on 2013 

data, the American/Rim fires burned a total of 284,754 acres of forest from August through 

October 2013 in the Sierra Nevada Mountains, upwind of the Reno area. These fires resulted in 

elevated PM2.s and PM10 concentrations above what is usually observed in August and 

September without the contribution of fire emissions, and the effects they had on air quality in 

California and Nevada were widely discussed in the news. Finally, these wildfires affected air 

quality similarly at the Sparks, Galletti and Reno3 sites. Given these factors, that Washoe County 

APCD has already been forced to close the site, and that the existing site has significant siting 

issues that Washoe County APCD has been unable to resolve, EPA approves the closure for 

PM10 at Galletti in accordance with 40 CFR §58.14(c)(l), and approves the closure of the PM2.s 

monitor at Galletti on a case-by-case basis per 40 CFR §58.14(c). EPA also approves the 

discontinuation of meteorology measurements and of reporting PM10-2.s data from this location, 

neither of which were required. 

EPA has also reviewed the new site proposal for Spanish Springs. According to the information 

presented, the new site will operate as a SPM for 18 months and then is expected to be converted 

to a SLAMS. The proposed location meets siting requirements and improves Washoe County 

AQMD's overall network coverage. The addition of a site in Spanish Springs was also a 

recommendation in Washoe County AQMD's 2010 Network Assessment. Per 40 CFR 

§58.14(b), EPA approves the new Spanish Springs site for Ozone, PM10, PM2.s, and PM10-2.s, as a 

SPM for 18 months and then expected conversion to a SLAMS. 
Please include these network modifications and EPA's approval in your next annual network 

plan. If you have any questions, please contact me at (415) 947-4534 or Katherine Hoag 

(Hoag.Katherine@epa.gov) at ( 415) 972-3970. 

Sincerely, 

~~ Meredith Kurpius 

Manager, Air Quality Analysis Office 
Appendix C

Public Inspection Plan
Public Inspection Plan

This monitoring network plan was available for public inspection from June 1 to June 30, 2015 at the 

AQMD website (OurCleanAir.com). A hardcopy of the plan was also available at the AQMD office. 

All comments received during this inspection period are outlined below. 

1. No comments received.