§ 9531.2. Air Quality. — Carson Zoning Code

The operator shall at all times conduct oil or gas site operations to prevent the unauthorized release, escape, or emission of dangerous, hazardous, harmful and/or noxious gases, vapors, odors, or substances, and shall comply with the following provisions:

A. Odor Minimization. If the site is within one thousand five hundred (1,500) feet of any prohibited zoning as listed in Table 1-1, or if three (3) odor complaints from three (3) different citizens of the City have been confirmed by the SCAQMD or the City within any twelve (12) month period, at all times the operator shall comply with the provisions of an odor minimization plan that has been approved by the Petroleum Administrator. The plan shall provide detailed information about the site and shall address all issues relating to odors from oil or gas operations. Matters addressed within the plan shall include setbacks, signs with contact information, logs of odor complaints, method of controlling odors such as flaring and odor suppressants, and the protocol for handling odor complaints. The odor minimization plan shall be reviewed and updated by the operator on an annual basis to determine if modifications to the plan are required. Any modifications to the odor minimization plan shall be submitted to the Petroleum Administrator for review and approval. Any operator's submissions to the SCAQMD shall be provided to the Petroleum Administrator and shall be consistent with this Section. An odor minimization plan is not required

for facilities existing at the time of the adoption of the ordinance codified in this Chapter if the operator can demonstrate that the facility has not experienced a confirmed odor complaint within the previous five (5) years.

B. Portable Flare for Drilling. If the well is within one thousand five hundred (1,500) feet of any prohibited zoning as listed in Table 1-1, and either the historical operations of the producing zone have exhibited a gas-oil ratio (standard cubic feet per barrel) of more than four hundred (400) or no data is available on the producing zone targeted, the operator shall have a gas buster and a portable flare, approved by the SCAQMD, at the oil and gas site and available for immediate use to remove any gas encountered during drilling and abandonment operations from well muds prior to the muds being sent to the shaker table, and to direct such gas to the portable flare for combustion. The portable flare shall record the volume of gas that is burned in the flare. The volume of gas burned in the flare shall be documented in the operations logs. The operator shall notify the Fire Chief of the Los Angeles County Fire Department and the SCAQMD within forty-eight (48) hours in the event a measurable amount of gas is burned by the flare, and shall specify the volume of gas that was burned in the flare. All other drilling and abandonment operations shall be conducted so that any measurable gas that is encountered can, and will, be retained in the well bore until the gas buster and portable flare are installed on the rig, after which the gas will be run through the system to flare. The operator shall immediately notify the Fire Chief of the Los Angeles County Fire Department and the SCAQMD in the event any gas from operation is released into the atmosphere without being directed to and burned in the flare.
C. Odor Control for Drilling Operations. If the well is within one thousand five hundred (1,500) feet of any prohibited zoning as listed in Table 1-1 and either the historical operations of the producing zone have exhibited a gas-oil ratio of more than four hundred (400) standard cubic feet per barrel or no data is available on the producing zone targeted, the operator shall use an enclosed mud system that directs all mud vapors through an odor capturing system, such as a carbon bed, to prevent odorous pollutants from passing the site boundaries and impacting the area. An odor suppressant spray system may be used on the mud shaker tables for all drilling operations to ensure that no odors from said operations can be detected at the outer boundary line of the oil and gas site.
D. Closed Systems. The operator shall ensure that all produced water, gas and oil associated with production, processing, and storage, except those used for sampling only, are contained within closed systems at all times and that all pressure relief systems, including tanks, vent to a closed header and flare-type system to prevent emissions of pollutants. This subsection does not apply to existing facilities.
E. No open pits are allowed. Open tanks may be allowed to hold mud from active drilling operations.
F. Off-Road Diesel Construction Equipment Engines. All off-road diesel construction equipment shall comply with the following provisions:

Utilize California Air Resources Board ("CARB") EPA Certification Tier III or other methods approved by the CARB as meeting or exceeding the Tier III standard.
1. Utilize a CARB Level 3 diesel catalyst. The catalyst shall be capable of achieving an eightyfive (85) percent reduction for diesel particulate matter. Copies of the CARB verification shall be provided to the Petroleum Administrator. Said catalysts shall be properly maintained and operational at all times when the off-road diesel construction equipment is in use. Use of an EPA Certification Tier 4i engine will also satisfy this requirement.

G. Drill Rig Engines. All drilling rig diesel engines shall comply with the following provisions:
1. Utilize CARB/EPA Certification Tier III or better certified engines.

Utilize a CARB Level 3 diesel catalyst. The catalyst shall be capable of achieving an eightyfive (85) percent reduction for diesel particulate matter. Copies of the CARB verification shall be provided to the Petroleum Administrator. Said catalysts shall be properly maintained and operational at all times when the off-road diesel construction equipment is in use. Use of an EPA Certification Tier 4i engine will also satisfy this requirement.

(Ord. 16-1590, Exh. B (§ 1))