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Summary of Oil and Gas Air Quality Requirements

 
Recent Changes
On February 23, 2014, Colorado’s Air Quality Control Commission fully adopted EPA’s Standards of Performance for Crude Oil and Natural Gas Production, Transmission, and Distribution found in 40 C.F.R. Part 60, Subpart OOOO (“NSPS OOOO”) into Regulation Number 6, Part A; adopted corresponding revisions to its emissions reporting and permitting framework in Regulation Number 3, Parts A, B, and C; and adopted complementary oil and gas control measures in Regulation Number 7.
 
Following is a fact sheet summarizing these revisions:
 
 

 

Control Requirements: North Front Range Ozone Non-Attainment Area
  • 90 percent Volatile Organic Compound (VOC) control requirement for the summertime ozone season beginning May 1 2011 (May 1 - September 30). 70 percent Volatile Organic Compound (VOC) control requirement for the remainder of the year.

 

Control Requirements: Statewide
  • Tank standards: New and existing condensate tanks emitting 20 tons per year or more of Volatile Organic Compounds (VOC) required to control emissions by 95 percent.
  • Engine Standards for new or relocated engines from out of state:

Maximum Engine Horsepower

Construction or Relocation Date NOx g/hp-hr CO g/hp-hr NMHC g/hp-hr
100 - 500 hp January 1, 2008
January 1, 2011
2.0
1.0
4.0
2.0
1.0
0.7
Greater than 500 hp July 1, 2007
July 1, 2010
2.0
1.0
4.0
2.0
1.0
0.7
  • Glycol Dehydrator controls: New and existing glycol dehydrators emitting more than 15 tons per year of Volatile Organic Compounds (VOCs) are required to control emissions by 90 percent.