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3SAQS/WAQS Monitoring Network Assessments

This Wiki page contains materials for Monitoring Network Assessments conducted by the 3SAQS and WAQS. The 2014 3SAQS Assessment evaluated the status of ambient air quality monitors in Colorado, Wyoming and Utah. The 2017 WAQS study expanded the geographical region of the Three State Study to seven states by adding New Mexico, Montana, North Dakota and South Dakota. Final reports, supplemental materials, and meeting archives for the 2014 3SAQS and 2017 WAQS MNA are available below.

Contents [hide]

3SAQS 2014

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

WAQS 2017

Reports

WAQS Monitoring Network Assessment Final Report (3 Nov., 2017)

Meetings

WAQS Monitoring Network Assessment Working Group Meetings
WAQS Governing Board 2017.05.05.pptx (5 May, 2017)
WAQS OC 2017.11.06.pptx (6 Nov., 2017)

Monitoring Sites

Tabular Data

Monitors An Excel Workbook that lists monitors in the WAQS region. The Workbook has a worksheet for all monitors in the WAQS region, and separate worksheets listing monitors by organization. Information in the workbook was obtained from the AQS Monitor Listing file1 (2017-05-26 AQS update) and from the IWDW.IWDW 2.

Maps
Note: The map image files can be viewed at full resolution in most web browsers by clicking on, and hence zooming to, a specific region of the map.

Maps by Parameter Maps showing monitors for the parameters (pollutants) considered in the WAQS MNAMNA.

All monitors non-overlapping labels
All monitors overlapping labels
O3 and Precursors O3, NO2, VOCs (highlighting monitors that report ethane and formaldehyde)
PM2.5 inclues FRM/FEM and non-FRM/FEM PM2.5 monitors
PM2.5 with supplemental monitoring PM2.5 monitors that also measure PM2.5 Raw and PM2.5 Total
Ions and Ammonia PM2.5 Sulfate and Nitrate and NH3 from AMoN
Meteorology Wind speed and Temperature
NADP sites AMoN and NTN

Maps by Organization Maps showing monitors affiliated with state agencies and/or organizations considered in the WAQS MNA process.
Tribes
EPA/NPS
USFS
BLM
Colorado-DPHE
Wyoming-DEQ
Utah-DEQ
New Mexico-ED, Albuquerque DEQ
Montana-DEQ
Dakotas
Other Monitors not associated with groups listed above. Generally industry sponsored monitoring.

Current Conditions

O3 MD8s This analysis used data from the AQS 2016-12-23 update, which did not include finalized data for 2016.

4th Highest Maximum Daily 8-hour average (MD8) for 2010-2015. MD8s Calculatedwere in the WAQS MNA using EPA'scalculated 8-hour average data (2016-12-23from AQS update23). 2016 MD8s are not included because data used for this portion of the WAQS Assessment did not include finalized 2016 data.
2010 2011 2012 2013 2014 2015

Design Values County level design values (DVs) from the EPA OEI Map Service4.

2013-2015 DVs County LevelDVs DVs3 (overlaidoverlaid with Sitesite Levellevel 2015 O3MD8sO3 from WAQS MNA) MD8s.
O3 MD8
O3 MD8 detail zoom to show countiesCounties with monitor(s) > 70ppb

2014-2016 County Level DVs4 (overlaidoverlaid with withO3 monitor locations5)locations.
O3 MD8
O3 MD8 detail zoom to show countiesCounties with monitor(s) > 70ppb
NO2 1-hour
NO2 annual
PM2.5 24-hour
[PM2.5PM2.5 24-hour] Overlaid with CIAClass overlayI areas
PM2.5 annual
PM2.5 24-hour NAAs WAQS Region
PM2.5 24-hour NAAs detail zoom to Wasatch Front, includes NO3 and NH4 monitors (should updateoverlaid with AMoN,monitor specifically)locations

Monitor-to-Monitor Analysis

Maps

Locations of highly correlated monitors, as defined in the MNA Report.6
O3
NO2
PM2.5

Locations of the top 10 most highly correlated for O3, NO2 and PM2.5
Top 10
Top 10 zoom of Denver Metro Area

Tabular data

Excel spreadsheet with summary data from the correlation analysis.
Monitor Correlations

Plot Archive

Plots Regression Analysis - Scatter plots and time series for O3MD8s and daily O3, NO2 and PM2.5

Plots Correlograms for O3, NO2 and PM2.5 monitors

Representative Area Analysis

Monitor Spatial Extents
pending

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

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

Wyoming
O3 NO2 O3&NO2 PM2.5

Utah
O3 NO2 O3&NO2 PM2.5

New Mexico
O3 NO2 O3&NO2 PM2.5

Montana
O3 NO2 O3&NO2 PM2.5

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

Emissions Analysis
Emissions are from the WAQS 2011b modeling platform and incorporate 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

Additional Resources

Reports by State and Local Agencies

Colorado - CDPHE 2015 MNA 2017 Network Plan

Wyoming - WDEQ 2015 MNA 2016 Network Plan

Utah - UDEQ 2015 MNA 2016 Network Plan

New Mexico - NMED 2015 MNA 2017 Network Review Albuquerque 2017 Network Plan

SDDEP 2015 MNA 2017 Network Plan

NDDEQ 2017 Network Plan

MTDEQ 2016 Network Plan

GIS Data

O&G Well Locations
Colorado - COGCC GIS downloads see Well Surface Location Data
Layers: Wells.shp, Permist.shp, Permits_pending.shp; Filters: Facil_stat = Producing; Downloaded 2017-4-11

Montana & Dakotas - USGS Energy Developmet - GIS Data
Layer: PetroleumWells_041113; Filters: Producing (MD, ND, SD), not DRY (ND); Published: 2013-11-19; Downloaded 2016-10-24

New Mexico - NMOCD ftp://164.64.106.6/Public/OCD
Layer: NM_Wells_State_Wide_UTM_NAD_83_Z13; Filters: Status=Active, Well Type = Gas, Oil, Injection, Gas Storage; Downloaded 2016-10-25

Utah - DOGM GIS Data ftp
Layers: DNROilGasWells; Filters: Status = Producing, Active, Well Type = Oil well, Gas well, Gas injection, Gas storage; Downloaded 2017-4-11

Wyoming - WDEQ (Cara Keslar, personal communication)
Layers: wogcc_wells; Filters: WellStatus = Permit to Drill, Producing Gas Well, Producing Oil Well; Received 2017-4-7

2017 WAQS MNA GIS Data
Arc GIS mdx files, scripts and geodatabases used for the 2017 WAQS MNA
pending
Monitors
Airsheds
Design Values
Correlation Analysis
Gap Analysis
Emissions Analysis

_____________________________________________________________

1. EPA 2017a, AQS Pre-generated data files, https://aqsdr1.epa.gov/aqsweb/aqstmp/airdata/download_files.html2017-05-26 update, https://aqsdr1.epa.gov/aqsweb/aqstmp/airdata/download_files.html,

2. IWDW 2017. Intermountain West Data Warehouse, http://views.cira.colostate.edu/tsdw/DataWizard/Default.aspx.

2.3. ibid.EPA 2017a, 2016-12-23 update.

3.4. EPA 2017b, Map Service: USEPA Office of Environmental Information (OEI). Data: U.S. EPA Office of Air and Radiation (OAR) - Office of Air Quality, https://gispub.epa.gov/arcgis/rest/services/OAR_OAQPS/DesignValueServicesOAQPS/MapServer, downloaded on Oct. 11, 2017 https://gispub.epa.gov/arcgis/rest/services/OAR_OAQPS/DesignValueServicesOAQPS/MapServer2017.

4. 2014-2016 Design Value maps are overlaid with active monitoring locations, rather than site level MD8s, because data for 2016 O3 MD8s were not available at the time of this analysis.

5. EPA 2017b.

6. Highly correlated monitors are defined being correlated with another monitor with a regression coefficient (R2) >0.8 and average concentration within 10%. The average concentration criteria was set to 15% for NO2. Regressions use all available matching (that is, days where both monitor report data) 24-hour average data.