Clean Water Act discharge permit · NPDES CA0104426
EL CENTRO WWTP, El Centro, CA: NPDES CA0104426 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 149Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
EL CENTRO WWTP, held by El Centro, City of, holds NPDES permit CA0104426, which discharges to Central Drain, Alamo 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 (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | EL CENTRO WWTP |
|---|---|
| Permittee as filed | El Centro, City of |
| NPDES ID | CA0104426 |
| Permit status | Effective |
| 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 | El Centro, CA 92243 |
| Receiving water | Central Drain, Alamo River |
| Receiving water impaired | 303(D) Listed |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 155Pollutants on file
- 149Under a numeric limit
- 27With a violation of any kind
- 9With 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 155 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| E. coli | 2 | 41 | 33 | September 30, 2024 | 99,999% over the limit |
| Coliform, fecal general | 2 | 25 | 22 | September 30, 2024 | 99,999% over the limit |
| Selenium, total recoverable | 4 | 24 | 10 | October 31, 2025 | 263% over the limit |
| Solids, total suspended | 6 | 31 | 7 | December 31, 2024 | 96% over the limit |
| Solids, suspended percent removal | 1 | 10 | 6 | July 31, 2026 | 53% over the limit |
| Copper, total recoverable | 2 | 4 | 4 | November 30, 2006 | 10% over the limit |
| Nickel, total recoverable | 2 | 3 | 3 | September 30, 2005 | 10% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 26 | 2 | January 31, 2017 | 293% over the limit |
| Solids, settleable | 0 | 2 | 2 | October 31, 1999 | 80% over the limit |
| 4,4'-DDT | 2 | 20 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 16 | 0 | ||
| Solids, total dissolved | 2 | 16 | 0 | ||
| pH | 2 | 11 | 0 | ||
| Phosphate, ortho [as P] | 2 | 7 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 6 | 0 | ||
| Nitrogen, nitrite total [as N] | 2 | 6 | 0 | ||
| Nitrogen, nitrate total [as N] | 2 | 6 | 0 | ||
| Phosphorus, total [as P] | 2 | 6 | 0 | ||
| BOD, 5-day, percent removal | 1 | 4 | 0 | ||
| Temperature, water deg. fahrenheit | 0 | 4 | 0 | ||
| Nitrogen, total [as N] | 0 | 4 | 0 | ||
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | 4 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 2 | 0 | ||
| Pass/Fail Static 4 Day Chronic Raphidocelis subcapitata | 0 | 2 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 2 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 0 | 2 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 1 | 0 | ||
| Oil and grease | 4 | 0 | 0 | ||
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| TU Static Renewal 7-Day Chronic Pimphales promelas | 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 | ||
| 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 | ||
| Benzo[k]fluoranthene | 2 | 0 | 0 | ||
| Benzo[a]pyrene | 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 CA0104426.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, CA0104426.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 CA0104426 there.
Nearby on the register
- Discharge permits in El Centro
- Every permit record in El Centro, A to Z
- Discharge permits in California
- Every permit record in California, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.