Rule 1180 - Refinery Fenceline Air Monitoring Plans

Latest Update: The draft fenceline air monitoring plan for Valero WIlmington Refinery is now available for public comment.
See table below for link to the plan and comment due date.

This site will be updated as new information becomes available.

Adopted in December 2017, Rule 1180 mandates the implementation of real-time observations of air quality at or near the fenceline of all major refineries in the South Coast Air Basin, and in nearby communities.

The main objectives of Rule 1180 are to:

  • Provide real-time information about air pollutant levels at the refinery fenceline and in nearby communities
  • Understand long-term variations and trends of refinery related emissions
  • Help communities understand potential air quality impacts of refinery emissions
  • Provide a notification to the community if emissions exceed pre-determined thresholds
  • Enable refineries to quickly address significant changes in emissions

The timeline for Rule 1180 fenceline and community air monitoring implementation is summarized in the chart below.


Fenceline Air Monitoring

Rule 1180 requires petroleum refineries to install and operate fenceline air monitoring systems to measure a comprehensive list of criteria pollutants and toxic air contaminants. For each applicable refinery, the rule requires the submittal and approval of a fenceline air monitoring plan that provides detailed information about air monitoring instrumentation, maintenance and quality control procedures, backup systems, auditing, and data reporting methods. All fenceline air monitoring plans shall be consistent with the Rule 1180 Refinery Fenceline Air Monitoring Plan Guidelines developed during the rulemaking process. Prior to approval or disapproval the fenceline air monitoring plan shall be made available for public review for no less than fourteen (14) days. Comments received will be considered for modification of the draft plan, prior to its official approval/disapproval.  

The draft fenceline monitoring plans for the major petroleum refineries in our region have been submitted and are being reviewed by SCAQMD staff. The plans are linked in the following table and are available for public review until the reported due date. The table will be updated as additional plans are submitted and/or the status of the plan is changed. Printed copies of the plans can be also obtained at the SCAQMD Headquarters at 21865 Copley Drive, Diamond Bar, CA 91765.
When approved, the final plans will also be posted on this webpage.

 Refinery/Operator  Fenceline Air Monitoring Plan Released for Public Comments Public Comments Accepted Until Plan Status
 Chevron El Segundo Refinery  Chevron Draft Plan  December 07, 2018 5:30pm  January 11, 2019 5:30pm  Public Review Closed
 Tesoro Carson and Wilmington Refineries* Tesoro Draft Plan
Tesoro Appendices   B and C
 December 11, 2018 5:30pm  January 11, 2019 5:30pm   Public Review Closed
 Phillips 66 Carson Refinery  Phillips 66 Carson Draft Plan  December 07, 2018 5:30pm  January 11, 2019 5:30pm  Public Review Closed
 Phillips 66 Wilmington Refinery  Phillips 66 Wilmington Draft Plan  December 07, 2018 5:30pm January 11, 2019 5:30pm  Public Review Closed
 Torrance Refining Company  Torrance Refinery Draft Plan
Torrance Refinery Appendix A
 December 07, 2018 5:30pm January 11, 2019 5:30pm  Public Review Closed
 Valero Wilmington Refinery Valero Draft Plan
 January 23, 2019 12:00pm  February 06, 2019 5:30pm  Public Review
* Tesoro submitted one plan describing fenceline monitoring to be conducted at Carson and Wilmington refineries.

Public Comments

The public is encouraged to submit written comments on the available refinery fenceline air monitoring plans. All comments must be submitted by the due date specified above for each plan.

  • If you are providing comments on behalf of an organization, include the organization’s name and your contact information;
  • If you are commenting as an individual, submit your contact information;
  • Please indicate which plan(s) you are commenting on.

Written comments can be submitted by email to:

Additionally, written comments can be mailed to:
Dr. Andrea Polidori
Atmospheric Measurements Manager
South Coast Air Quality Management District
21865 Copley Drive
Diamond Bar, CA 91765

For any questions regarding the above information, please contact:
Dr. Andrea Polidori (909) 396-3283
Dr. Olga Pikelnaya (909) 396-3157

Community Air Monitoring

Coming soon…

South Coast Air Quality Management District

21865 Copley Dr, Diamond Bar, CA 91765



© 2019 South Coast Air Quality Management District