Oil & gas compliance and recordkeeping


  Oil & Gas                                                                 

Storage tank and vapor control system guidelines
Guidelines for design, operation, and maintenance of vapor control systems at oil and gas facilities.

Oil & gas operating and maintenance plans
Forms and guidance for O&M plans for equipment at oil & gas facilities.


Regulation No. 7

Approved Instrument Monitoring Method (AIMM)

Section XII: Non-attainment area condensate tanks  

Section XII.H.6: Glycol dehydrators

Section XVII: Alternative Emissions Control Devices

Section XVII.C: Storage Tank Emissions Management (STEM)

Section XVII.H: Well Liquid Unloading

Leak Detection and Repair (LDAR)



LDAR Annual Reports


Visible Emissions Observations






Regulatory Updates Guidance

2017 Revisions to Regulation No. 7

2014 Changes to Regulation Nos. 3, 6, and 7

Optical Gas Imaging Infrared (IR) Camera Inspection Program

IR camera inpection pilot project assessment (July 2016)
Two-year project using optical gas imaging infrared cameras to identify and address sources of emission leaks and venting. 



Noble Energy consent decree
Settlement between Noble Energy, the Colorado Department of Public Health and Environment and the U.S. Environmental Protection Agency, effective June 2, 2015.


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