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Pacific Southwest/Region 9	Seiving Arizona, California, Hawaii, Nevada, the Pacific Islands and 147 Tribes

Enforcement Division	75 Hawthorne Street (ENF-2-1), San Francisco, CA 94105

Air & Toxics Release Inventory (TRI) Section	866-EPA-WEST • www.epa.gov/region9

Toxics Release Inventory
2012 California Refineries Report

Refinery Releases in California

Twenty-one refineries in California reported a total
of 5,937,697 pounds (lbs) of toxic chemical releases
during 2012. Total on-site and off-site releases re-
ported by these refineries increased 10% (393,990
lbs), when compared to 2011 data. Refineries make
up 19% of the State's total reported releases and
3 million lbs (42%) of its releases to the air.

What is a Release?

A TRI "release" is defined by Federal reporting laws
as the amount of a toxic chemical released on-site
(to air, water, underground injection, landfills, and
other land disposal), and the amount transferred
off-site for disposal; it is measured in lbs, unless
stated otherwise.

Each year, facilities are required to report on
July 1 their releases for the previous calendar
year to the United States Environmental Protec-

tion Agency (EPA). For example, on July 1, 2014,
facilities will be required to report releases that
occurred during calendar year 2013. EPA posts
the raw data in the summer. Subsequently EPA
reviews the data quality of these submissions. In
winter, EPA publishes analysis of the most recent
available data.

Refineries with Largest Chemical Releases

The top facilities located in each of the major
geographic areas in California are as follows:

San Francisco Bay Area



Facility Name

City

County

Total
Releases
(in lbs)

1

PHILLIPS 66
SAN FRANCISCO REFINERY

Rodeo

Contra Costa

1,097,117

2

VALERO REFINING CO.
CALIFORNIA BENICIA REFINERY

Benecia

Solano

655,285

3

CHEVRON PRODUCTS CO.
RICHMOND REFINERY

Richmond

Contra Costa

611,255

4

SHELL OIL PRODUCTS US
MARTINEZ REFINERY

Martinez

Contra Costa

529,045

5

TESORO REFINING &
MARKETING CO. LLC.

Martinez

Contra Costa

507,714

TOTAL: 3,400,416

California Refinery TRI releases in lbs

10,000,000
9,000,000
8,000,000
7,000,000
6,000,000
5,000,000
4,000,000
3,000,000
2,000,000
1,000,000

Offsite transfers
I Water
I Air

2007 2008 2009 2010 2011 2012


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Southern California



Facility Name

City

County

Total
Releases
(in lbs)

1

CHEVRON PRODUCTS CO.
DIV. OF CHEVRON USA INC

El Segundo

Los Angeles

901,930

2

BP WEST COAST PRODUCTS LLC
CARSON REFINERY

Carson

Los Angeles

671,163

3

EXXON MOBIL OIL CORP.
TORRANCE REFINERY

Torrance

Los Angeles

363,278

4

TESORO
LOS ANGELES REFINERY

Wilmington

Los Angeles

242,676

5

PHILLIPS 66 LOS ANGELES
REFINERY-WILMINGTON PLANT

Wilmington

Los Angeles

134,564

6

ULTRAMAR INC.
WILMINGTON REFINERY

Wilmington

Los Angeles

110,020

7

PHILLIPS 66
LOS ANGELES REFINERY

Carson

Los Angeles

39,224

8

PARAMOUNT
PETROLEUM CORP.

Paramount

Los Angeles

8,653

9

LUNDAY-THAGARD CO.

South Gate

Los Angeles

2,195

10

EDGINGTON OIL CO.

Long Beach

Los Angeles

616

TOTAL: 2,474,319

San Joaquin Valley



Facility Name

City

County

Total
Releases
(in lbs)

1

PARAMOUNT PETROLEUM
BAKERSFIELD REFINERY AREAS 1 & 2

Bakersfield

Kern

9,656

2

SAN JOAQUIN
REFINING CO. INC.

Bakersfield

Kern

7,252

3

KERN OIL &
REFINING CO.

Bakersfield

Kern

6,364

4

PARAMOUNT PETROLEUM
BAKERSFIELD REFINERY AREA 3

Bakersfield

Kern

2,009

5

TRICOR REFINING
LLC.

Bakersfield

Kern

54

TOTAL: 25,335

Central California



Facility Name

City

County

Total
Releases
(in lbs)

1

PHILLIPS 66 CO.
SANTA MARIA REFINERY

Arroyo Grande

San Luis
Obispo

38,297

Top 10 Released Chemicals

Here are the top 10 chemicals released by refiner-
ies in California (based on releases to all media):

NICKEL
COMPOUNDS-2%

XYLENE (MIXED
ISOMERS)-2%

TOLUENE-2%

HYDROCHLORIC ACID
(ACID AEROSOLS)-2%
HYDROGEN SULFIDE - 2%
ASBESTOS (FRIABLE) - 3%

METHANOL-5%

SULFURIC ACID
(ACID AEROSOLS) - 5%

All Releases - Air,
Water, Land, and Offsite
5,937,697 lbs

N-HEXANE - 2%

PROPYLENE-3%

XYLENE
(MIXED ISOMERS)-3%

HYDROGEN CYANIDE - 3%

TOLUENE-4%

HYDROCHLORIC ACID
(AEROSOLS ONLY)-4%

HYDROGEN SULFIDE - 4%

METHANOL-

Air Releases
3,022,697 lbs

SULFURIC ACID
(AEROSOLS ONLY) - 10%

For More Information

For more information, see www.epa.gov/tri for
national TRI information;

or www.epa.gov/region09/tri for Regional TRI
information;

Please direct questions to Lily Lee, U.S. EPA
Region 9, at lee.lilv@epa.gov or 415-947-4187.

Note: Release data alone are not sufficient to determine exposure
or to calculate potential risks to human health and the environ-
ment. TRI data, in conjunction with other information, such as
the toxicity of the chemical, the release medium (e.g., air), and
site-specific conditions, can be used as a starting point in evaluat-
ing exposures that may result from releases of toxic chemicals.


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