Clean Water Act discharge permit · NPDES CA0000051

PHILLIPS SANTA MARIA REFINERY, Santa Maria, CA: NPDES CA0000051 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
92Pollutants under a numeric limit
6Pollutants with an effluent exceedance

PHILLIPS SANTA MARIA REFINERY, held by PHILLIPS 66 CO, holds NPDES permit CA0000051, which discharges to Pacific Ocean. EPA’s file records it issued September 7, 2007 and expiring September 7, 2012. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	PHILLIPS SANTA MARIA REFINERY
Permittee as filed	PHILLIPS 66 CO
NPDES ID	CA0000051
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Not a publicly owned treatment works
Issued	September 7, 2007
Expiration date	September 7, 2012
Address	Santa Maria, CA 93420
Receiving water	PACIFIC OCEAN
Subwatershed	Meadow Creek-Frontal Pacific Ocean (HUC 180600060705)
SIC	2911 – Petroleum Refining
Other EPA IDs (FRS)	RCRA handler CAT080010796; ICIS-AIR source CASLO0000607900509

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

95Pollutants on file
92Under a numeric limit
90With a violation of any kind
6With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant; the 60 with the most exceedances of 95 are shown.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Flow, in conduit or thru treatment plant	4	5	3	February 28, 2006	14% over the limit
Solids, total suspended	2	32	2	January 31, 2014	900% over the limit
Chemical Oxygen Demand [COD]	2	25	2	January 31, 2014	19% over the limit
BOD, 5-day, 20 deg. C	2	12	2	March 31, 2014	59% over the limit
TCDD equivalents	4	10	2	September 30, 2014	2,147,483,650% over the limit
Cyanide, total [as CN]	1	7	2	October 31, 2022	164% over the limit
Oil and grease	2	24	0
Selenium, total recoverable	8	8	0
Silver total recoverable	8	8	0
Cadmium, total recoverable	8	8	0
Endosulfan, total	8	8	0
Endrin	8	8	0
Chlorine, total residual	8	8	0
Phenols, chlorinated	8	8	0
Hexachlorocyclohexane, total	8	8	0
Phenolic compounds, unchlorinated	8	8	0
Chromium, hexavalent [as Cr]	3	6	0
Chromium, total recoverable	0	6	0
Nitrogen, ammonia total [as N]	2	5	0
Thallium, total recoverable	4	4	0
Beryllium, total recoverable [as Be]	4	4	0
Chromium, trivalent [as Cr]	4	4	0
2-Methyl-4,6-dinitrophenol	4	4	0
Polynuclear Aromatic Hydrocarbons [PAHs]	4	4	0
Dichlorobromomethane	4	4	0
Carbon tetrachloride	4	4	0
1,2-Dichloroethane	4	4	0
Dibromochloromethane	4	4	0
Chloroform	4	4	0
Toluene	4	4	0
Benzene	4	4	0
Acrolein	4	4	0
Acrylonitrile	4	4	0
Bis[2-chloroethyl] ether	4	4	0
Bis[2-chloroethoxy]methane	4	4	0
Bis[2-chloroisopropyl] ether	4	4	0
Chlorobenzene	4	4	0
Diethyl phthalate	4	4	0
Dimethyl phthalate	4	4	0
1,2-Diphenylhydrazine	4	4	0
Ethylbenzene	4	4	0
Fluoranthene	4	4	0
Hexachlorocyclopentadiene	4	4	0
Hexachlorobutadiene	4	4	0
Hexachloroethane	4	4	0
Isophorone	4	4	0
N-Nitrosodi-N-propylamine	4	4	0
N-Nitrosodiphenylamine	4	4	0
N-Nitrosodimethylamine [NDMA]	4	4	0
Nitrobenzene	4	4	0
Tetrachloroethylene	4	4	0
1,1-Dichloroethylene	4	4	0
1,1,1-Trichloroethane	4	4	0
1,1,2-Trichloroethane	4	4	0
1,1,2,2-Tetrachloroethane	4	4	0
1,4-Dichlorobenzene	4	4	0
2,4-Dinitrotoluene	4	4	0
2,4-Dinitrophenol	4	4	0
2,4,6-Trichlorophenol	4	4	0
3,3'-Dichlorobenzidine	4	4	0

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES CA0000051.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID CA0000051 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers NPDES permit CA0000051 for the Phillips Santa Maria Refinery in Santa Maria, CA, held by Phillips 66 Co and discharging to the Pacific Ocean, within subwatershed Meadow Creek-Frontal Pacific Ocean (HUC 180600060705). The permit is administratively continued and classed as a Major Discharger, with 92 pollutants under a numeric limit and 6 pollutants with an effluent exceedance.