Clean Water Act discharge permit · NPDES CA0048216
WATSONVILLE WWTF, Watsonville, CA: NPDES CA0048216 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 140Pollutants under a numeric limit
- 15Pollutants with an effluent exceedance
WATSONVILLE WWTF, held by WATSONVILLE, CITY OF, holds NPDES permit CA0048216, which discharges to Monterey Bay. EPA’s file records it issued May 9, 2008 and expiring May 9, 2013. 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 | WATSONVILLE WWTF |
|---|---|
| Permittee as filed | WATSONVILLE, CITY OF |
| NPDES ID | CA0048216 |
| 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 9, 2008 |
| Expiration date | May 9, 2013 |
| Address | Watsonville, CA 95076 |
| Receiving water | MONTEREY BAY |
| Program components on file | POTW, Pretreatment |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 143Pollutants on file
- 140Under a numeric limit
- 143With a violation of any kind
- 15With 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 143 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| BOD, carbonaceous [5 day, 20 C] | 5 | 42 | 8 | August 31, 2024 | 99,999% over the limit |
| Chlordane [tech mix. and metabolites] | 3 | 16 | 4 | March 31, 2016 | 189,900% over the limit |
| Oil and grease | 5 | 33 | 3 | November 30, 2021 | 231% over the limit |
| Solids, settleable | 3 | 21 | 3 | June 30, 2026 | 233% over the limit |
| Heptachlor | 3 | 15 | 3 | March 31, 2016 | 11,805% over the limit |
| Polychlorinated biphenyls [PCBs] | 3 | 15 | 3 | March 31, 2016 | 62,400% over the limit |
| Nitrogen, ammonia total [as N] | 6 | 38 | 2 | March 31, 2015 | 118% over the limit |
| pH | 4 | 26 | 2 | December 31, 2020 | |
| Toxaphene | 3 | 15 | 2 | March 31, 2016 | 23,233% over the limit |
| 3,3'-Dichlorobenzidine | 3 | 14 | 2 | March 31, 2016 | 5,842% over the limit |
| Benzidine | 3 | 14 | 2 | March 31, 2016 | 610,069% over the limit |
| TCDD equivalents | 3 | 11 | 2 | June 30, 2006 | 99,999% over the limit |
| TU Static 48Hr Chronic Macrocystis pyrifera | 1 | 5 | 2 | September 30, 2021 | 87% over the limit |
| Chlordane | 0 | 2 | 2 | December 31, 2007 | 18,900% over the limit |
| Aldrin | 3 | 13 | 1 | March 31, 2016 | 584% over the limit |
| Solids, total suspended | 7 | 50 | 0 | ||
| Chlorine, total residual | 6 | 42 | 0 | ||
| Cyanide, total [as CN] | 6 | 25 | 0 | ||
| Silver total recoverable | 6 | 24 | 0 | ||
| Cadmium, total recoverable | 6 | 24 | 0 | ||
| Phenols, chlorinated | 6 | 24 | 0 | ||
| Phenolic compounds, unchlorinated | 6 | 24 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 24 | 0 | ||
| Turbidity | 3 | 19 | 0 | ||
| Endosulfan, total | 6 | 17 | 0 | ||
| Enterococci | 2 | 14 | 0 | ||
| Coliform, fecal general | 2 | 14 | 0 | ||
| Coliform, total general | 2 | 14 | 0 | ||
| Nickel, total recoverable | 6 | 13 | 0 | ||
| Thallium, total recoverable | 3 | 13 | 0 | ||
| Beryllium, total recoverable [as Be] | 3 | 13 | 0 | ||
| Selenium, total recoverable | 6 | 12 | 0 | ||
| Endrin | 6 | 12 | 0 | ||
| Hexachlorocyclohexane, total | 6 | 12 | 0 | ||
| 2-Methyl-4,6-dinitrophenol | 3 | 12 | 0 | ||
| Dichlorobromomethane | 3 | 12 | 0 | ||
| Carbon tetrachloride | 3 | 12 | 0 | ||
| 1,2-Dichloroethane | 3 | 12 | 0 | ||
| Dibromochloromethane | 3 | 12 | 0 | ||
| Benzene | 3 | 12 | 0 | ||
| Acrolein | 3 | 12 | 0 | ||
| Acrylonitrile | 3 | 12 | 0 | ||
| Bis[2-chloroethyl] ether | 3 | 12 | 0 | ||
| Bis[2-chloroethoxy]methane | 3 | 12 | 0 | ||
| Bis[2-chloroisopropyl] ether | 3 | 12 | 0 | ||
| Chlorobenzene | 3 | 12 | 0 | ||
| Diethyl phthalate | 3 | 12 | 0 | ||
| Dimethyl phthalate | 3 | 12 | 0 | ||
| 1,2-Diphenylhydrazine | 3 | 12 | 0 | ||
| Ethylbenzene | 3 | 12 | 0 | ||
| Hexachlorocyclopentadiene | 3 | 12 | 0 | ||
| Hexachlorobutadiene | 3 | 12 | 0 | ||
| Hexachloroethane | 3 | 12 | 0 | ||
| Isophorone | 3 | 12 | 0 | ||
| Methylene chloride | 3 | 12 | 0 | ||
| N-Nitrosodi-N-propylamine | 3 | 12 | 0 | ||
| N-Nitrosodiphenylamine | 3 | 12 | 0 | ||
| N-Nitrosodimethylamine [NDMA] | 3 | 12 | 0 | ||
| Nitrobenzene | 3 | 12 | 0 | ||
| Tetrachloroethylene | 3 | 12 | 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 CA0048216.
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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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.