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Colorado Department of Public Health and Environment
Other Air Quality Information for the Oil and Gas Industry:

Environmental Requirements, Resources and Guidance

Guidance for Oil and Natural Gas Production MACT Standard

Guidance for Natural Gas Transmission and Storage MACT Standard

Ozone Information

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Air Pollution Control Division

Oil and Gas Industry Regulatory Information

APCD Permitting Related to COGCC 805 Series Rules

In December 2008, the Colorado Oil and Gas Conservation Commission (COGCC) promulgated new rules and amendments applicable to the oil and gas industry. Of particular interest to the Division are rules for managing odors and dust (805 Series).

In response, the Division has revised its General Permit for condensate tanks (GP01) and developed a new General Permit for produced water tanks (GP 05) to facilitate the permitting of these sources.

The Colorado Air Pollution Control Division (APCD) has created a website to include all of the necessary tools and information for oil and gas operators to apply for an APCD permit under the revised COGCC rules (805 Series).

New Oil and Gas Industry Permit Application Process

On September 22, 2008 the APCD implemented a new oil and gas industry permitting process. The new process is the outcome of a collaborative effort between the agency and industry to improve the efficiency of permit application reviews. For more information on the new permit application process please visit the following link:

Oil and Gas Emission Control Requirements 

Stricter emission control requirements for the oil and gas industry have been in place in Colorado since 2007 to reduce the emissions of volatile organic compounds that contribute to the formation of ozone.

New control requirements were established for condensate tanks in both the Front Range ozone non-attainment area and statewide. New reporting and recordkeeping requirements were also established.

Summary of Requirements

  • Oil and Gas Reg. 7 Guidance Fact Sheet
  • Commencing May 1, 2009, companies in the ozone non-attainment region must increase the control of VOCs from current 75 percent level to 81 percent for the summertime ozone season (May 1 - September 30).
Control Requirements: Statewide 
  • Tank standards: New and existing condensate tanks emitting 20 tons per year or more of VOCs required to control emissions by 95 percent commencing May 1, 2008
  • Engine Standards for new or relocated engines from out of state commencing July 1, 2007:
    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
  • Engines in operation prior to Feb. 1, 2009, with a nameplate horsepower rating of 500 horsepower or greater are required to install catalytic control by July 1, 2010, unless the source can provide data to the division by Aug. 1, 2009, that the cost will exceed $5,000 per ton of VOC controlled.
  • Glycol Dehydrator controls: New and existing glycol dehydrators emitting more than 15 tons per year of VOCs are required to control emissions by 90 percent commencing May 1, 2008.

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