R307-509-4. Leak Detection and Repair Requirements

  (1) Applicable sources shall comply with the following:

  (a) The owner or operator shall develop an emissions monitoring plan that shall be available upon request to review for each individual well site. At a minimum, the plan shall include:

  (i) monitoring frequency;

  (ii) monitoring technique and equipment;

  (iii) procedures and timeframes for identifying and repairing leaks;

  (iv) recordkeeping practices; and

  (v) calibration and maintenance procedures for monitoring equipment.

  (b) The plan shall address monitoring for difficult-to-monitor and unsafe-to-monitor components.

  (c) The owner or operator shall conduct monitoring surveys on site to observe each fugitive emissions component for fugitive emissions.

  (d) Monitoring surveys shall be conducted according to the following schedule:

  (i) No later than 365 days after January 1, 2018, or no later than 60 days after startup of production, as defined in 40 CFR 60 Subpart OOOOa Standards of Performance for Crude Oil and Natural Gas Production, Transmission and Distribution, whichever is later.

  (ii) Semiannually after the initial monitoring survey. Consecutive semiannual monitoring surveys shall be conducted at least four months apart.

  (iii) Annually after the initial monitoring survey for "difficult-to-monitor" components.

  (iv) As required by the owner or operator's monitoring plan for "unsafe-to-monitor" components.

  (e) Monitoring surveys shall be conducted using one or both of the following to detect fugitive emissions:

  (i) Optical gas imaging (OGI) equipment. OGI equipment shall be capable of imaging gases in the spectral range for the compound of highest concentration in the potential fugitive emissions source.

  (ii) Monitoring equipment that meets U.S. EPA Method 21, 40 CFR Part 60, Appendix A.

  (f) If fugitive emissions are detected at any time, the owner or operator shall repair the fugitive emissions component as soon as possible but no later than 15 calendar days after detection. If the repair or replacement is technically infeasible, would require a vent blowdown, a well shutdown or well shut-in, or would be unsafe to repair during operation of the unit, the repair or replacement shall be completed during the next well shutdown, well shut-in, after an unscheduled, planned or emergency vent blowdown or within 24 months, whichever is earlier.

  (g) The owner or operator shall resurvey the repaired or replaced fugitive emission component no later than 30 calendar days after the fugitive emission component was repaired.