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This year, Colorado adopted a new rule affecting well production facilities and compressor stations that operate natural gas driven pneumatic controllers. These devices are designed to release small amounts of natural gas as they control processes at oil and natural gas facilities. Beginning May 1, 2021, all new or modified oil and gas facilities upstream of a natural gas processing plant in Colorado are required to use non-emitting pneumatic controllers. The rule also establishes a phased approach to retrofit some existing natural gas actuated controllers by May 1, 2023. Pertinent requirements and timelines are highlighted below.

Any new or modified well production facility or natural gas compressor station that commences operation on or after May 1, 2021, must use only non-emitting controllers (Regulation 7, Part D, Section III.C.4.a.). This includes well production facilities that receive production from a well that first begins producing or is refractured on or after the deadline, and compressor stations that increase horsepower on or after the deadline. Those facilities will need to have signage indicating that they use non-emitting controllers.

For Well Production Facilities

For well production facilities that were in operation prior to May 1, 2021, the rule outlines a Company‑Wide Non-Emitting Controller Program (Regulation 7, Part D, Section III.C.4.c.). In short, the program requires operators to lay out what fraction of their total historic liquids production is already produced through facilities that use non-emitting pneumatic controllers. This baseline percentage value is then compared to Table 1 in the rule (found below) to determine what additional percentage of the operator’s production must be produced through facilities that use non-emitting controllers by May 1, 2022, and May 1, 2023.

Colorado Air Quality Control Commission Regulation 7, Part D, Section III.C.4.c.

For Compressor Stations

A similar Company-Wide Non-Emitting Controller Compliance Program exists for compressor stations (Regulation 7, Part D, Section III.C.4.c.). This program is simply based on the historic percentage of non‑emitting controllers already located at compressor stations, with similar step increases over time in the percentage of non-emitting controllers required by May 1, 2022 and May 1, 2023.

Colorado Air Quality Control Commission Regulation 7, Part D, Section III.C.4.d.

Tables 1 and 2 establish the “…minimum additional percentages of non-emitting controllers required by May 1, 2022 and May 1, 2023 based on a company’s historic percentage of non-emitting controllers. Owners and operators need not go beyond the maximum required percentages specified in Table 1 or 2, although they may choose to do so,” (Regulation 7, Part D, Section III.C.4.c. & d.).

For example, if a midstream company’s historic percentage of non-emitting controllers is 40% at their compressor stations, they must retrofit so that an additional 15% of controllers are non-emitting by May 1, 2022 according to Table 2. However, the maximum required percentage of non-emitting controllers for May 1, 2022 is 50%, meaning that the company needs to retrofit only an additional 10% of their controllers to reach compliance.

How to achieve compliance

Compliance can be achieved through either plugging and abandoning a production facility and its wells, permanently removing controllers at compressor stations, or retrofitting the existing controllers at these facilities with non-emitting equivalents. Common non-emitting options include pneumatic controllers driven by compressed air and electric controllers powered by a generator, the electric grid, or solar panels.

Companies must submit their compliance plan containing the required information to the Division on a Division-approved form by September 1, 2021. Operators will also be required to submit an updated compliance plan by July 1 of each year listed in Table 1 and Table 2 unless the company has demonstrated compliance with the “Total Required Non-Emitting Facility Percent Production” the previous year. Do not hesitate to reach out to your Spirit consultant for assistance in producing your Company-Wide Compliance Plan for pneumatic controllers. We are excited and ready to assist your company in attaining compliance.

Am I exempt?

As always, there are some caveats to the rule. For example, natural gas emitting pneumatic controllers that are “necessary for a safety or process purpose that cannot otherwise be met without emitting natural gas,” are not required to retrofit under the rule. Controllers that are located on temporary or portable equipment are also exempt. See Regulation 7, Part D, Section III.C.4.e. for additional details on the applicability of these and other exemptions. Furthermore, an owner or operator that demonstrates that its total statewide oil and natural gas production averages 15 barrels of oil equivalent or less per day per well is not subject to the retrofit requirements (Regulation 7, Part D, Section III.C.4.c.(iv)).

Statewide rulemakings can be confusing and tricky, but they do not have to be! Reach out to one of our air quality professionals and we can answer your questions and help you achieve compliance.

Important deadlines to note:

May 1, 2021: Rule goes into effect.

July 1, 2021: Operators that seek to rely on the exemption in III.C.4.e.(i)(D) to exclude certain emitting pneumatic controllers at qualifying wellheads when determining total historic non-emitting percent production must submit justification to Division by this date. If the Division does not respond by August 15, 2021, justification is deemed approved.

September 1, 2021:  Submit initial Company-Wide Compliance Plan to Division.

September 1, 2021: At compressor stations that utilize only non-emitting controllers, must file a one‑time notification to Division that lists each active and operating station and certification that the site utilizes only non-emitting controllers.

October 1, 2021: For well production facilities designated as “Historic Non-Emitting”, must place signage onsite indicating that facility utilizes non-emitting controllers to satisfy requirements of rule.

October 1, 2021: Pneumatic controllers at well production facilities and compressor stations that qualify for exemptions under III.C.4.e.(i)(A-D) must be tagged.

May 1, 2022: First deadline to meet minimum additional required non-emitting percent goal in Table 1 or Table 2.

May 1, 2022: Must tag all pneumatic controllers that emit natural gas to the atmosphere at compressor stations where non-emitting controllers are also located.

May 1, 2022: Must begin required AIMM and AVO inspections for any pneumatic controller claiming the exemption under III.C.4.e.(i)(D) at existing facilities.

July 1, 2022: Operators must submit an updated Company-Wide Compliance Plan unless the operator has demonstrated compliance with the plan the year prior.

May 1, 2023: Second deadline to meet minimum additional required non-emitting percent goal in Table 1 or Table 2.

July 1, 2023: Operators must submit an updated Company-Wide Compliance Plan unless the operator has demonstrated compliance with the plan the year prior.

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