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# / R Incorporated Providing Environmental Technical Support Since 1989

501 Eastowne Drive, Suite 25 0  Chapel Hill, North Carolina 2751 4

Telephone: (919)484

- 0222  Fax: (919) 484

- 0122 MEMORANDUM

Date: May 28, 2010

Subject: Summary of the March 23 , 2010 Meeting Between the EPA and API

Representatives Regarding Available Air Emissions Data Sources and

Estimation Methodologies for the Oil and Gas Industry

From: Robert Vogt, EC/R Incor porated

To: Bruce Moore, EPA/OAQPS/SPPD/CCG

I. PURPOSE

The purpose of this memorandum is to summarize the March 23, 2010 meeting between

the Environmental Protection Agency (EPA) and industry representatives from the American

Petroleum Institute (API). T he purpose of the meeting was to gather information about available

emissions data and calculation methods in the Oil and Gas Industry.

II. DATE

The meeting took place on March 23, 2010 from 9:00 a.m. to 11:30 a.m. at the United

States Environmental Protect ion Agency in Research Triangle Park, North Carolina.

III. ATTENDEES

A sign in sheet with a list of attendees was collected and is included as Attachment 1. The

following individuals were present at the meeting:

API

Matt Todd , Regulatory Analyst

BP

Jeffr ey A. Adams, Manager, Regulatory Affairs

ExxonMobil

Tom Monahan, Senior Regulatory Specialist

U.S. Environmental Protection Agency (EPA /OAQPS )

Alex MacPherson , Health and Environmental Impacts Division, Air Benefit and Cost Group

# E C



# / R Incorporated Providing Environmental Technical Support Since 1989

501 Eastowne Drive, Suite 25 0  Chapel Hill, North Carolina 2751 4

Telephone: (919)484

- 0222  Fax: (919) 484

- 0122 Bruce Moore , Sector Poli cies and Programs Division, Coatings and Chemicals Group

David Salman , Sector Policies and Programs Division, Coatings and Chemicals Group

David Solomon , Sector Policies and Programs Division, Program Design Group

Jodi Howard , Sector Policies and Pr ograms Division, Coatings and Chemicals Group

Nick Parsons , Sector Policies and Programs Division, Coatings and Chemicals Group

Rachel Agnew , Sector Policies and Programs Division, Measurement Policy Group

Ken Hustvedt, Sector Policies and Programs Divisio n, Coatings and Chemicals Group

EC/R Incorporated

Heather Brown

Phil Norwood

Robert Vogt

Phone Call

- Ins

Carol Butero, Kinder Morgan

Shankar Ananthakrishna

, Chevron

Janet Bounds, Chevron

Doug Henderer, Buys & Associates

IV. SUMMARY OF DISCUSSION

Mr. Henderer led the discussion with a PowerPoint presentation on the Western Regional

Air Partnership (WRAP) Oil & Gas Emi ssions project (see Attachment 2 ). The WRAP O il &

Gas Emissions project focuses on the Exploration and Production segment of the Oil and Gas

Industry in the WRAP region, which consists of Colorado, Montana, New Mexico, North

Dakota, Utah, and Wyoming. In the WRAP Phase III analysis, Buys and Associat es conducted

detailed surveys with gas well operators in the Denver

- Julesburg, Piceance, Uinta, and North San

Juan Basins. High participation in the surveys was reported, and Buys and Associates used data

collected from the surveys in conjunction with acti vity level and equipment count data from

published sources to calculate emission estimates. Other key topics of discussion included:

 Background of the WRAP emissions inventory project

 Comparisons of the Phase I, Phase II, and Phase III emissions estimat ion methodologies

for the WRAP emissions inventory project

 Basin

- specific and operation

- specific variability in emissions

 Environmental Impact Studies (EIS) as a source of emissions data

 Steps moving forwar d