Velarion Records

Clean Water Act discharge permit · NPDES CA0048003

SOUTH SAN LUIS OBISPO SD WWTP, Oceano, CA: NPDES CA0048003 discharge permit, effluent exceedances, inspections, penalties

SOUTH SAN LUIS OBISPO SD WWTP, held by SOUTH SAN LUIS OBISPO CO SD, holds NPDES permit CA0048003, which discharges to Pacific Ocean. EPA’s file records it issued October 23, 2009 and expiring October 23, 2014. 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 filedSOUTH SAN LUIS OBISPO SD WWTP
Permittee as filedSOUTH SAN LUIS OBISPO CO SD
NPDES IDCA0048003
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedOctober 23, 2009
Expiration dateOctober 23, 2014
AddressOceano, CA 93445
Receiving waterPACIFIC OCEAN
SIC4952 – Sewerage Systems
Other EPA IDs (FRS)RCRA handler CAC003259220

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

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 99 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Coliform, fecal general24727July 31, 202499,999% over the limit
BOD, 5-day, 20 deg. C78713February 28, 202599,999% over the limit
Solids, total suspended7879March 31, 20221,787% over the limit
Chlorine, total residual4559July 31, 2024221% over the limit
Endrin5342December 31, 2021612% over the limit
Chlordane [tech mix. and metabolites]2152December 31, 20212,492% over the limit
Toxaphene2152December 31, 20211,334% over the limit
Benzidine2142December 31, 202116,494% over the limit
Polychlorinated biphenyls [PCBs]2142December 31, 202115,773% over the limit
Hexachlorobenzene2142December 31, 20212,568% over the limit
Turbidity3311August 31, 2006
Solids, settleable3311September 30, 200799,999% over the limit
pH2211May 31, 2009
Aldrin2141December 31, 202129% over the limit
Heptachlor epoxide2141December 31, 202142% over the limit
BOD, 5-day, percent removal1111June 30, 2014179% over the limit
Solids, suspended percent removal1111June 30, 2014185% over the limit
Oil and grease5610
Nitrogen, ammonia total [as N]4390
Arsenic, total recoverable5320
Selenium, total recoverable5320
Nickel, total recoverable5320
Silver total recoverable5320
Cadmium, total recoverable5320
Lead, total recoverable5320
Copper, total recoverable5320
Endosulfan, total5320
Mercury, total recoverable5320
Phenols, chlorinated5320
Hexachlorocyclohexane, total5320
Phenolic compounds, unchlorinated5320
Cyanide, total [as CN]5300
Chromium, hexavalent [as Cr]5300
Zinc, total recoverable5300
Flow, in conduit or thru treatment plant2220
Coliform, total general2200
Chlorine usage2200
TU Static 48Hr Chronic Macrocystis pyrifera2150
DDT/DDD/DDE, sum of p,p' & o,p' isomers2130
Dieldrin2130
Heptachlor2130
Thallium, total recoverable2120
Beryllium, total recoverable [as Be]2120
Chromium, trivalent [as Cr]2120
Antimony, total recoverable2120
2-Methyl-4,6-dinitrophenol2120
Tributyltin2120
Polynuclear Aromatic Hydrocarbons [PAHs]2120
Dichlorobromomethane2120
Carbon tetrachloride2120
1,2-Dichloroethane2120
Dibromochloromethane2120
Chloroform2120
Toluene2120
Benzene2120
Acrolein2120
Acrylonitrile2120
Bis[2-chloroethyl] ether2120
Bis[2-chloroethoxy]methane2120
Bis[2-chloroisopropyl] ether2120

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES CA0048003.

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 CA0048003 there.

Nearby on the register

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

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