1. Federal EIS Air Quality Analysis
National Environmental Quality Act (NEPA) requires …Major Federal actions significantly affecting the quality of the human environment, a detailed statement by the responsible official on—
the environmental impact of the proposed action,
any adverse environmental effects which cannot be avoided should the proposal be implemented,
alternatives to the proposed action,
the relationship between local short-term uses of man’s environment and the maintenance and enhancement of long-term productivity, and
any irreversible and irretrievable commitments of resources which would be involved in the proposed action should it be implemented.

2. Who Plays?
Prior to making any detailed statement, the responsible Federal official shall consult with and obtain the comments of any Federal agency which has jurisdiction by law or special expertise with respect to any environmental impact involved. (Cooperating Agencies)
Differing agency missions (legislative directives)
Responsible agency – proposes action or responsible for taking the action, like requirement to lease.
Oil & Gas usually BLM is the responsible agency.
EPA rules on technical adequacy and environmental impact.

3. Air Quality Analysis
Work with cooperators to identify potentially affected environmental factors
Identify analysis techniques for the factors
Strive to use best science
Fiscal and time constraints
Not constrained to GAQM – but useful
Evolved over time
ISCST
CALPUFF
CMAQ/CAMx

4. EISs and SIPs

5. New Standards & Energy Development

6. Areas for Collaboration
Base EIs
States and EISs independently developing
Projected EIs
“Growth Factors” and EIS assumptions have been different
Modeling
Different specific areas but all affected by same regional emissions
Local feedback to regional modeling
Sensitive resources affected either way – give decision makers consistent, high-quality information

7. EPA modeling of counties predicted to violate new Ozone standard by 2020 (does not reflect accurate/representative emissions projections in the West)

8. WRAP 2018 regional modeling - areas predicted to violate new Ozone standard (4th highest 8-hour average by grid cell [closest to compliance form of Ozone NAAQS] + seasonality)