Clean Water Act discharge permit · NPDES CA7000009

CALEXICO WPCP, Calexico, CA: NPDES CA7000009 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
152Pollutants under a numeric limit
11Pollutants with an effluent exceedance

CALEXICO WPCP, held by Calexico, City of, holds NPDES permit CA7000009, which discharges to New River. EPA’s file records it issued May 8, 2014 and expiring May 31, 2019. 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	CALEXICO WPCP
Permittee as filed	Calexico, City of
NPDES ID	CA7000009
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	May 8, 2014
Expiration date	May 31, 2019
Address	Calexico, CA 92231
Receiving water	New River
Receiving water impaired	303(D) Listed
Subwatershed	Upper New River (HUC 181002040902)
SIC	4952 – Sewerage Systems
Other EPA IDs (FRS)	RCRA handler CAL000297044

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

157Pollutants on file
152Under a numeric limit
30With a violation of any kind
11With 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 157 are shown.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Enterococci	2	46	44	February 28, 2026	99,999% over the limit
BOD, 5-day, 20 deg. C	8	34	28	June 30, 2025	538% over the limit
E. coli	2	22	20	February 28, 2026	99,999% over the limit
Coliform, fecal general	2	15	15	October 31, 2025	99,999% over the limit
Copper, total recoverable	2	11	10	August 31, 2011	280% over the limit
Cyanide, free available	4	3	3	April 30, 2016	99,999% over the limit
Selenium, total recoverable	2	2	2	August 31, 2019	567% over the limit
pH	2	4	1	January 31, 2005
Oil and grease	2	2	1	January 31, 2015	14% over the limit
BOD, 5-day, percent removal	1	2	1	June 30, 2023	13% over the limit
Solids, suspended percent removal	1	2	1	April 30, 2018	13% over the limit
Solids, total dissolved	1	17	0
Flow, in conduit or thru treatment plant	4	14	0
Solids, total suspended	8	8	0
Mercury, total recoverable	2	2	0
Temperature, water deg. fahrenheit	1	2	0
Oxygen, dissolved [DO]	1	2	0
Nitrogen, ammonia total [as N]	1	2	0
Nitrogen, nitrite total [as N]	1	2	0
TU Static Renewal 7-Day Chronic Ceriodaphnia dubia	4	1	0
TU Static Renewal 7-Day Chronic Pimphales promelas	4	1	0
Hardness, total [as CaCO3]	2	1	0
Nitrogen, nitrate total [as N]	1	1	0
Sulfate, total [as SO4]	1	1	0
Phosphate, ortho [as P]	1	1	0
Sulfate [as S]	0	1	0
Nitrogen, total [as N]	0	1	0
Phosphorous, total organic [as P]	0	1	0
%Surv Static Renewal 96Hr Acute Ceriodaphnia dubia	0	1	0
%Surv Static 96Hr Acute Pimphales Promelas	0	1	0
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)	4	0	0
Cyanide, total [as CN]	2	0	0
Asbestos	2	0	0
Arsenic, total recoverable	2	0	0
Thallium, total recoverable	2	0	0
Beryllium, total recoverable [as Be]	2	0	0
Chromium, hexavalent [as Cr]	2	0	0
Chromium, trivalent [as Cr]	2	0	0
Nickel, total recoverable	2	0	0
Silver total recoverable	2	0	0
Zinc, total recoverable	2	0	0
Cadmium, total recoverable	2	0	0
Lead, total recoverable	2	0	0
Antimony, total recoverable	2	0	0
2-Methyl-4,6-dinitrophenol	2	0	0
Dichlorobromomethane	2	0	0
Carbon tetrachloride	2	0	0
1,2-Dichloroethane	2	0	0
Bromoform	2	0	0
Dibromochloromethane	2	0	0
Chloroform	2	0	0
Toluene	2	0	0
Benzene	2	0	0
.delta.-BHC	2	0	0
Acenaphthylene	2	0	0
Acenaphthene	2	0	0
Acrolein	2	0	0
Acrylonitrile	2	0	0
Anthracene	2	0	0
Benzo[b]fluoranthene	2	0	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 CA7000009.

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.

Watch this permit

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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 CA7000009 there.

Nearby on the register

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