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Health Advisory Lifted for Pittsburg and Antioch

Last updated: 5:39 a.m. Friday, March 27, 2015

The health advisory for Pittsburg and Antioch has been lifted. The advisory was issued for people with respiratory sensitivities this morning after a chemical release at Dow Chemical in Pittsburg. Contra Costa HazMat staff are investigating the incident. More information will be posted as it becomes available.

RMP - Shell Oil Products U.S. Martinez

Martinez, CA


Formerly known as the Equilon Martinez Refining Company (MRC), the Shell Oil Products U.S. Martinez Refinery (Shell Martinez Refinery) occupies approximately 880 acres, and is located in Contra Costa County, partially within the city boundaries of Martinez, CA. The 24-hour facility has 800 full time employees on site (as of 2004) with an additional 300-600 on site to perform contract work.

Property occupied by the Shell Martinez Refinery is industrial in use. Land use surrounding the Shell Martinez Refinery is a combination of industrial, open space, environmental conservation, and residential.

The Shell Martinez Refinery processes crude oil and other feedstocks for conversion into gasoline, jet fuel, diesel, and asphalt products. The facility produces enough gasoline to fill 252,000 cars, enough diesel to fill 13,125 18-wheel trucks, and enough jet fuel to fill 21 jets (747's) per day.

For additional information regarding this facility's operations and regulated materials handled, please view the Fact Sheet - English | Spanish and Audit Summaries - English | Spanish.

Regulated Substances Subject to CalARP/Federal RMP/ISO:

Regulated Substances Program Level CalARP Regulated Federal RMP Regulated ISO Regulated
Anhydrous Ammonia 3 yes no yes
Aqueous Ammonia 3 yes yes yes
Hydrogen Sulfide 3 yes no yes
Sulfuric Acid* 3 yes no yes
Flammables 3 yes yes yes