1. WAQS Monitoring Network Assessment
Preliminary Work Plan
IWDW Technical Committee Meeting, Oct. 11, 2016

2. WAQS Network Assessment Outline
Objectives
Background
Monitoring
Status of current network
Planning for expanded WAQS region
AQ Regulations
Design Values
Emissions
AQ modeling
Workgroup
Timeline
Cost analysis

3. WAQS Network Assessment Objectives
Monitoring objectives of Cooperating Agencies;
Air Quality
MPE
Do current sites meet objectives; are additional monitoring sites needed?
Is there a need/ the capacity to incorporate new technologies?
Historic – compare current status to goals set forth in previous Network Assessment;
State of the science – literature review/consideration of emerging science.

4. WAQS Network Assessment Background
3SAQS
Network Recommendations (27 Feb, 2014); Final Technical Memorandum (May 2014)
Meeting archive
EPA Guidance 40CFR Part 58.10(d)
Guidance doc (2007)
LADCO 2015 Network Assessment - ArcGIS Story Map (Prepared by R5 EPA)
NetAssess Network Assessment Application
EPA Green Book NAAs, DVs
as GIS web services, reports, excel downloads
DV spreadsheets
NetAssessApp - select area of interest, add new sites, area served (voronoi polygons) (shows population stats for area served - for O3, PM25 shows exceedance probablity at 65, 70, 75ppb thresholds for O3), correlation matrix & removal bias (O3, PM2.5, 88502)

5. WAQS Network Assessment Monitoring Sites
Previous network assessment
Monitoring sites: 92 O3, 128 PM
3 states
Current network
n sites
4 states
3SAQS (97 AQS O3 sites); add NM (123)
Expanded Study region
192 additional AQS O3 monitoring sites
7 expansion states (183); add NE, ID (192)
State agency collaboration, etc.

6. WAQS Network Assessment Monitoring Sites
Modeling domain progression
AQS sites included in respective 4km and 12 km domains
State AQS O3 monitoring sites
Texas 76
Arizona 45
Colorado 33
Wyoming 33
Utah 31
Oklahoma 28
New Mexico 26
Kansas 11
North Dakota 9
Montana 8
Nebraska 6
South Dakota 6
Idaho 3

7. WAQS Network Assessment Monitoring Sites
Define spatial analyses
GIS spatial tool
Monitoring site rankings
Evaluate population/area served, number of parameters monitored, length of monitoring record, design values, correlation with other sites, removal bias;
Identify potentially underserved areas;
Overlays (Class I, II Areas; population centers; O&G development areas, etc.)
Special studies
2014 winter Utah - UBWOS
2014 summer - Colorado FRAPPE

8. WAQS Network Assessment Regulations
National, SLT
NAAQS Nonattainment areas
Consider 4 States (CO, WY, UT, NM) and expanded region (AZ, MT, ND, SD, OK, KS, TX), add ID, NE?
Pollutants – Ozone, PM2.5 (other NAAQS species, O3 precursors)
Other Regulations – Regional Haze, deposition,
Cooperators needs for monitoring, modeling, reporting

9. WAQS Network Assessment Design Values
States in expanded domain have O3, PM2.5, PM10, NO2, SO2 and CO NAAQS exceedances;
Increase in number of county level O3 NAAs with 70ppb standard;
2015 ( ) DVs released June 17, EPA OAQPS map service used to create DV maps of potential expanded study region.

10. WAQS Network Assessment NAAs
8-Hour O3 NAAs ppb Standard
COLORADO (Region VIII) - Denver-Boulder-Greeley-Ft. Collins-Loveland
WYOMING (Region VIII) - Upper Green River Basin Area
TEXAS (Region VI)- Houston- Galveston-Brazoria; Dallas- Fort Worth
ARIZONA (Region IX) - Phoenix-Mesa (Moderate - Nonattainment)
What monitoring period was used to establish NAAs?

11. WAQS Network Assessment Design Values
2015 O3 DVs ( ) 70ppb Standard

12. WAQS Network Assessment Design Values
2015 ( ) O3 DVs, 70ppb NAAQS
Counties State
28 California
13 Texas
8 Pennsylvania
7 Colorado
6 Connecticut
6 Utah
6 New Jersey
5 Michigan
4 Arizona
4 New York
3 Wisconsin
3 Maryland
3 Georgia
2 Illinois
2 Ohio
2 Nevada
1 New Mexico
1 Rhode Island
1 Kentucky
1 Louisiana
1 Missouri

13. WAQS Network Assessment Design Values
2015 O3 DVs 70ppb NAAQS
Monitor State
82 California
27 Texas
20 Arizona
11 Colorado
10 Connecticut
10 Utah
8 Pennsylvania
8 Nevada
7 New Jersey
5 New York
5 Michigan
3 Maryland
3 Georgia
3 Wisconsin
2 Ohio
2 New Mexico
2 Illinois
1 Kentucky
1 Louisiana
1 Missouri
1 Rhode Island

14. WAQS Network Assessment Design Values
O3 DV Projections (2025 Base)
No states west of Colorado exceed NAAQS in projection!
where do projections come from? What modeling, what emissions projections?

15. WAQS Network Assessment Design Values
NO County Level DVs
WAQS assessment:
Augment with VOC, CH4 monitoring?
Gather speciated VOC data where available; develop speciation profiles, use CH4 surrogate to estimate VOC emissions?
What is NO2 NAAQS?, year of standard?

16. WAQS Network Assessment Design Values
CO (1971)
COLORADO (Region VIII)
Colorado Springs, CO (Moderate <= 12.7ppm - Maintenance)
Denver-Boulder, CO (Serious - Maintenance)
Fort Collins, CO (Moderate <= 12.7ppm - Maintenance)
Greeley, CO (Not Classified - Maintenance)
Longmont, CO (Moderate <= 12.7ppm - Maintenance)
MONTANA (Region VIII)
Billings, MT (Not Classified - Maintenance)
Great Falls, MT (Not Classified - Maintenance)
Missoula, MT (Moderate <= 12.7ppm - Maintenance)
NEW MEXICO (Region VI)
Albuquerque, NM (Moderate <= 12.7ppm - Maintenance)
TEXAS (Region VI)
El Paso, TX (Moderate <= 12.7ppm - Maintenance)
[1hr and 8hr maps are the same?; what is CO NAAQS?

17. WAQS Network Assessment Design Values
SO2 (2010)
MONTANA (Region VIII)
Billings - Maintenance
ARIZONA (Region IX)
Hayden - Nonattainment
Miami - Nonattainment

18. WAQS Network Assessment Design Values
Lead (2008)
ARIZONA (Region IX)
Hayden- Nonattainment
KANSAS (Region VII)
Saline County -Nonattainment
TEXAS (Region VI)
Frisco - Nonattainment

19. WAQS Network Assessment Design Values
PM Site Level DVs
PM 2.5 (2012) IDAHO (Region X)
West Silver Valley (Moderate – Nonattainment)
WAQS assessment:
Look at proximity to CIAs; assess AQRV impacts?

20. WAQS Network Assessment Design Values
PM Site Level DVs
Adds IMPROVE sites

21. WAQS Network Assessment Design Values
PM County Level DVs
The level of the 1987 NAAQS for PM10 is 150 micrograms per cubic meter (µg/m3).
The metric for the PM10 NAAQS is the 3-year average expected number of exceedances (ENE).
Pinal, AZ AQS site => 50.5 ENE

22. WAQS Network Assessment Design Values
PM Site Level DVs
WAQS assessment:
Look at transport patterns?

23. WAQS Network Assessment Emissions
WAQS methodology;
Show 2011b O&G – Show comparison to 2011v2 NEI, 2014 NEI;
Trends – examples of significant trends by state, pollutant, sector.

24. WAQS Network Assessment AQ Modeling
Base and Future PGM modeling;
Projections (how do projections affect considerations for additional monitoring);
Model validation (maps of standard network monitors, special studies, Wx monitors).

25. WAQS Network Assessment Approach
Network Assessment Work Group
Identify IWDW-WAQS representations (Reps. from WAQS Cooperating Agencies)
Set 1st work group call
Initial Timeline
Develop cost share recommendations by end of 2016
Have Network Assessment outline/approach/preliminary monitoring site list in place before Oversight/Governing Board meeting in early 2017.
Request most recent monitoring assessments from State air agencies.

26. WAQS Network Assessment Cost Analysis
Cost for new monitoring sites;
Cost for potential site removal;
Funding need/sources (in-kind contributions by Agency);
Consider costs associated with current network and for expanded network;
Other considerations,