Clean Water Act discharge permit · NPDES CA0107395

ENCINA OCEAN OUTFALL, Carlsbad, CA: NPDES CA0107395 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
98Pollutants under a numeric limit
8Pollutants with an effluent exceedance

ENCINA OCEAN OUTFALL, held by Encina Wastewater Authority, holds NPDES permit CA0107395, which discharges to Pacific Ocean. EPA’s file records it issued April 13, 2011 and expiring June 1, 2016. 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	ENCINA OCEAN OUTFALL
Permittee as filed	Encina Wastewater Authority
NPDES ID	CA0107395
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	April 13, 2011
Expiration date	June 1, 2016
Address	Carlsbad, CA 92011
Receiving water	PACIFIC OCEAN
Program components on file	POTW, Pretreatment
SIC	4952 – Sewerage Systems
Other EPA IDs (FRS)	RCRA handler CAD983573601; ICIS-AIR source CASDS0000607300321

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

107Pollutants on file
98Under a numeric limit
87With a violation of any kind
8With 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 107 are shown.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Solids, total suspended	20	154	12	April 30, 2018	195% over the limit
BOD, carbonaceous [5 day, 20 C]	18	123	9	April 30, 2022	438% over the limit
Oil and grease	19	78	5	November 30, 2012	250% over the limit
Solids, suspended percent removal	3	18	2	March 31, 2018	220% over the limit
Chlorine, total residual	5	17	2	August 31, 2020	86% over the limit
Flow, in conduit or thru treatment plant	16	70	1	December 31, 2018	404% over the limit
Solids, settleable	12	43	1	April 30, 2025	13% over the limit
BOD, carb-5 day, 20 deg C, percent removal	3	18	1	April 30, 2022	194% over the limit
Turbidity	12	54	0
BOD, 5-day, 20 deg. C	9	37	0
pH	8	37	0
Nitrogen, ammonia total [as N]	5	15	0
Solids, total dissolved	2	8	0
Di[2-ethylhexyl] phthalate [DEHP]	2	6	0
Thallium, total [as Tl]	0	6	0
Chloroform	2	5	0
Halomethanes	2	5	0
Beryllium, total recoverable [as Be]	2	4	0
Chromium, trivalent [as Cr]	2	4	0
Antimony, total recoverable	2	4	0
2-Methyl-4,6-dinitrophenol	2	4	0
Tributyltin	2	4	0
Polynuclear Aromatic Hydrocarbons [PAHs]	2	4	0
Dichlorobromomethane	2	4	0
Carbon tetrachloride	2	4	0
1,2-Dichloroethane	2	4	0
Dibromochloromethane	2	4	0
Toluene	2	4	0
Benzene	2	4	0
Acrolein	2	4	0
Acrylonitrile	2	4	0
Bis[2-chloroethyl] ether	2	4	0
Bis[2-chloroethoxy]methane	2	4	0
Bis[2-chloroisopropyl] ether	2	4	0
Chlorobenzene	2	4	0
Diethyl phthalate	2	4	0
Dimethyl phthalate	2	4	0
1,2-Diphenylhydrazine	2	4	0
Ethylbenzene	2	4	0
Fluoranthene	2	4	0
Hexachlorocyclopentadiene	2	4	0
Hexachlorobutadiene	2	4	0
Hexachloroethane	2	4	0
Isophorone	2	4	0
N-Nitrosodi-N-propylamine	2	4	0
N-Nitrosodiphenylamine	2	4	0
N-Nitrosodimethylamine [NDMA]	2	4	0
Nitrobenzene	2	4	0
Tetrachloroethylene	2	4	0
1,1-Dichloroethylene	2	4	0
1,1,1-Trichloroethane	2	4	0
1,1,2-Trichloroethane	2	4	0
1,1,2,2-Tetrachloroethane	2	4	0
1,4-Dichlorobenzene	2	4	0
2,4-Dinitrotoluene	2	4	0
2,4-Dinitrophenol	2	4	0
2,4,6-Trichlorophenol	2	4	0
3,3'-Dichlorobenzidine	2	4	0
Di-n-butyl phthalate	2	4	0
Benzidine	2	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 CA0107395.

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 CA0107395 there.

Nearby on the register

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