Not logged in - Login
< back

3SAQS/WAQS Monitoring Network Assessments

Links to reports, monitoring site tables, maps and other resources for the 2017 WAQS Monitoring Network Assessment


3SAQS Monitoring Network Assessment Technical Memo (9 June, 2014)
3SAQS Network Recommendations (27 Feb., 2014)
Document Archive


WAQS Monitoring Network Assessment Report - DRAFT FINAL (13 Oct., 2017)


WAQS Monitoring Network Assessment Working Group Meetings

Monitoring Sites

Tabular Data

Monitors in WAQS region (reflects AQS monitors list updated 26 May, 2017)


Note: After opening image files, click on a specific area to view that area at higher resolution. By Monitored Parameters (Parameters cconsidered in the WAQS MNA)
[All monitors] [O3 and Precursors] PM2.5 [PM2.5 Raw and Total] [Ions and ammonia] [Met monitors] [NADP sites]

By Agency/Organization
Tribes EPA-NPS USFS BLM Colorado-DPHE Wyoming-DEQ Utah-DEQ Montana-DEQ Dakotas Other

By Region
CDPHE monitors in Denver and Northern Front Range Denver & NFR

NAAQS Parameters O3 NO2 PM2.5

AQRVs Sulfur and Nitrogen SPEC Sites All SPEC Sites


Monitor Tables Site Tables

Concentration Maps

O3 Annual 4th Highest Maximum Daily 8-hour average (MD8)
2010 2011 2012 2013 2014 2015

2013-2015 County Level DVs1 (with 2015 4th highest O3 from WAQS MNA)
O3 [O3 8-hour] [O3 8-hour detail]

2014-2016 County Level DVs1 (with monitor locations)
O3 [O3 8-hour] [O3 8-hour detail]
NO2 [NO2 1-hour] [NO2 annual]
PM2.5 [PM2.5 24-hour] [PM2.5 24-hour CIAs] [PM2.5 annual] [PM2.5 24hr NAAs] [PM2.5 24hr NAAs Wasatch Front]

Correlation Analysis

Maps showing monitors correlated to other monitors at R2>0.8.
O3 NO2 PM2.5
Tabular data Monitor Correlation Tables

Representative Area

Gap Analysis

Maps showing monitor locations, O&G wells, population centers. PM2.5 maps show Class I Areas.

O3 NO2 O3&NO2 PM2.5 (O3 and NO2 maps include well locations for 'approved and pending' permits)

O3 NO2 O3&NO2 PM2.5

O3 NO2 O3&NO2 PM2.5

New Mexico
O3 NO2 O3&NO2 PM2.5

O3 NO2 O3&NO2 PM2.5

North and South Dakota
O3 NO2 O3&NO2 PM2.5

Emissions Analysis

WAQS 2011b v2 O&G Sector Emissions
VOCs Emissions Wells Monitor Rankings
NMHC Emissions Wells Monitor Rnkings
NOx Emissions Wells Monitor Rankings
FP Emissions Wells Monitor Rankings

Reference Information

State Agency 5-year Monitoring Network Assessment Reports

GIS layers

1. EPA Map Service: USEPA Office of Environmental Information (OEI). Data: U.S. EPA Office of Air and Radiation (OAR) - Office of Air Quality, downloaded on Oct. 11, 2017