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Clean Water Act discharge permit · NPDES CA0064297

SEASIDE LAGOON, Redondo Beach, CA: NPDES CA0064297 discharge permit, effluent exceedances, inspections, penalties

SEASIDE LAGOON, held by Redondo Beach, City of, holds NPDES permit CA0064297, which discharges to King Harbor. EPA’s file records it issued October 7, 2010 and expiring September 10, 2015. 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 filedSEASIDE LAGOON
Permittee as filedRedondo Beach, City of
NPDES IDCA0064297
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedOctober 7, 2010
Expiration dateSeptember 10, 2015
AddressRedondo Beach, CA 90277
Receiving waterKing Harbor
SubwatershedManhattan Beach-Frontal Santa Monica Bay (HUC 180701040500)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

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 145 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Chlorine, total residual83434August 31, 20252,775% over the limit
Copper, total recoverable72424August 31, 202518,532% over the limit
Mercury, total recoverable12121August 31, 2023586% over the limit
Enterococci21616August 31, 202523,165% over the limit
Solids, total suspended161313September 30, 2023164% over the limit
Coliform, fecal general21212August 31, 20245,949% over the limit
Selenium, total recoverable799August 31, 2023191% over the limit
Coliform, total general277July 31, 2023144% over the limit
Oil and grease866July 31, 2022118% over the limit
Arsenic, total recoverable766August 31, 202360% over the limit
Zinc, total recoverable644July 31, 2023247% over the limit
Cyanide, total [as CN]144August 31, 2025696% over the limit
pH442July 31, 2025
Silver total recoverable711June 30, 202320% over the limit
Beryllium, total recoverable [as Be]120
Chromium, trivalent [as Cr]120
Lead, total recoverable120
Asbestos110
BOD, 5-day, 20 deg. C800
Thallium, total recoverable700
Nickel, total recoverable700
Cadmium, total recoverable700
Temperature, water deg. fahrenheit400
Turbidity400
Nitrogen, ammonia total [as N]400
Antimony, total recoverable400
Flow, in conduit or thru treatment plant400
% Surv Static Renewal 96Hr Acute Atherinops Affns200
TU Static 48Hr Chronic Macrocystis pyrifera200
TU Static 48Hr Chronic Haliotis rufescens200
TU Static Renewal 7-Day Chronic Holmesimysis costata200
TU Static Renewal 7-Day Chronic Menidia beryllina200
Toxic Units Static Renewal 7-Day Chronic Atherinops affinis200
Chromium, hexavalent [as Cr]100
2-Methyl-4,6-dinitrophenol100
Dichlorobromomethane100
Carbon tetrachloride100
1,2-Dichloroethane100
Bromoform100
Dibromochloromethane100
Chloroform100
Toluene100
Benzene100
.delta.-BHC100
Acenaphthylene100
Acenaphthene100
Acrolein100
Acrylonitrile100
Anthracene100
Benzo[b]fluoranthene100
Benzo[k]fluoranthene100
Benzo[a]pyrene100
Bis[2-chloroethyl] ether100
Bis[2-chloroethoxy]methane100
Bis[2-chloroisopropyl] ether100
Butyl benzyl phthalate100
Chlorobenzene100
Chrysene100
Diethyl phthalate100
Dimethyl phthalate100

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 CA0064297.

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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Nearby on the register

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

What this page shows

This page is a Velarion Records entry for the NPDES permit CA0064297, held by Redondo Beach, City of, for the facility SEASIDE LAGOON, which discharges to King Harbor in the Manhattan Beach-Frontal Santa Monica Bay subwatershed (HUC 180701040500). The permit is listed as administratively continued and a Minor discharger class, with 145 pollutants on file, 145 under a numeric limit, 18 with a violation of any kind, and 14 with an effluent exceedance.