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Clean Water Act discharge permit · NPDES CA0038369

SILICON VALLEY CLEAN WATER WWTP, Redwood City, CA: NPDES CA0038369 discharge permit, effluent exceedances, inspections, penalties

SILICON VALLEY CLEAN WATER WWTP, held by Silicon Valley Clean Water, holds NPDES permit CA0038369, which discharges to Lower San Francisco Bay. EPA’s file records it issued February 14, 2018 and expiring March 31, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedSILICON VALLEY CLEAN WATER WWTP
Permittee as filedSilicon Valley Clean Water
NPDES IDCA0038369
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
IssuedFebruary 14, 2018
Expiration dateMarch 31, 2023
AddressRedwood City, CA 94065
Receiving waterLower San Francisco Bay
Other EPA IDs (FRS)RCRA handler CAD053687950

Cited to the EPA ICIS-NPDES permit file (ECHO 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 177 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
% Survival Flow Through 96Hr Acute Oncorhynchus mykiss22726November 30, 201657% over the limit
Chlorine, total residual1129September 30, 20142,147,483,650% over the limit
Solids, total suspended6354August 31, 20183,238% over the limit
Mercury, total recoverable4101March 31, 200615% over the limit
Copper, total recoverable261November 30, 20158% over the limit
pH251March 31, 2001
BOD, carbonaceous [5 day, 20 C]6290
TCDD equivalents270
Nitrogen, ammonia total [as N]1060
Turbidity460
Zinc, total recoverable260
Oil and grease260
Sulfide, dissolved, [as S]060
Lead, total recoverable250
Enterococci150
Flow, in conduit or thru treatment plant240
Polychlorinated biphenyls [PCBs], sum of congeners240
Coliform, fecal general240
Solids, settleable040
Arsenic, total [as As]030
Cadmium, total [as Cd]030
Chromium, total [as Cr]030
Lead, total [as Pb]030
Zinc, total [as Zn]030
Phenolics, total recoverable030
Cyanide, total [as CN]220
Nickel, total recoverable220
2-Methyl-4,6-dinitrophenol220
Dichlorobromomethane220
Carbon tetrachloride220
1,2-Dichloroethane220
Bromoform220
Dibromochloromethane220
Toluene220
Benzene220
Acenaphthene220
Acrolein220
Acrylonitrile220
Anthracene220
Benzo[b]fluoranthene220
Benzo[k]fluoranthene220
Benzo[a]pyrene220
Bis[2-chloroethyl] ether220
Bis[2-chloroisopropyl] ether220
Butyl benzyl phthalate220
Chlorobenzene220
Chrysene220
Diethyl phthalate220
Dimethyl phthalate220
1,2-Diphenylhydrazine220
Ethylbenzene220
Fluoranthene220
Fluorene220
Hexachlorocyclopentadiene220
Hexachlorobutadiene220
Hexachloroethane220
Indeno[1,2,3-cd]pyrene220
Isophorone220
Methyl bromide [Bromomethane]220
Methylene chloride220

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 CA0038369.

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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How we handle your data → Privacy

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 CA0038369 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers NPDES permit CA0038369 for the SILICON VALLEY CLEAN WATER WWTP, held by Silicon Valley Clean Water, which discharges to Lower San Francisco Bay. The figures listed are 137 for the discharger class and 6 pollutants under a numeric limit, with 6 pollutants showing an effluent exceedance.