Clean Water Act discharge permit · NPDES CA0037648
CENTRAL CONTRA COSTA SD WWTP, Martinez, CA: NPDES CA0037648 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 135Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
CENTRAL CONTRA COSTA SD WWTP, held by Central Contra Costa Sanitary District, holds NPDES permit CA0037648, which discharges to Suisun Bay. EPA’s file records it issued April 12, 2017 and expiring May 31, 2022. 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 | CENTRAL CONTRA COSTA SD WWTP |
|---|---|
| Permittee as filed | Central Contra Costa Sanitary District |
| NPDES ID | CA0037648 |
| 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 12, 2017 |
| Expiration date | May 31, 2022 |
| Address | Martinez, CA 94553 |
| Receiving water | Suisun Bay |
| Program components on file | POTW, Pretreatment |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler CAD980585814; ICIS-AIR source CABAA00006013A0907 |
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
- 142Pollutants on file
- 135Under a numeric limit
- 48With a violation of any kind
- 1With 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 142 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Enterococci | 1 | 8 | 2 | December 31, 2001 | 54% over the limit |
| Solids, total suspended | 4 | 100 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 97 | 0 | ||
| Acrylonitrile | 2 | 17 | 0 | ||
| TU Static 48Hr Chronic Haliotis rufescens | 0 | 14 | 0 | ||
| Mercury, total recoverable | 4 | 8 | 0 | ||
| Cyanide, total [as CN] | 3 | 8 | 0 | ||
| Oil and grease | 2 | 8 | 0 | ||
| Nitrogen, ammonia total [as N] | 11 | 7 | 0 | ||
| Nitrogen, total [as N] | 4 | 6 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 6 | 0 | ||
| TU Static Renewal 7-Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 6 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 8 | 5 | 0 | ||
| Phosphorus, total [as P] | 12 | 4 | 0 | ||
| % Survival Flow Through 96Hr Acute Pimephales promelas | 2 | 4 | 0 | ||
| TCDD equivalents | 2 | 3 | 0 | ||
| Di[2-ethylhexyl] phthalate [DEHP] | 1 | 3 | 0 | ||
| pH | 2 | 2 | 0 | ||
| Copper, total recoverable | 2 | 2 | 0 | ||
| Static 96Hr Chronic Selen. Capricornutum | 2 | 2 | 0 | ||
| Lead, total recoverable | 1 | 2 | 0 | ||
| 1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin | 1 | 2 | 0 | ||
| 1,2,3,7,8-Pentachlorodibenzo-p-dioxin | 1 | 2 | 0 | ||
| 1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin | 1 | 2 | 0 | ||
| 1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin | 1 | 2 | 0 | ||
| 1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin | 1 | 2 | 0 | ||
| 1,2,3,7,8-Pentachlorodibenzofuran | 1 | 2 | 0 | ||
| 2,3,4,7,8-Pentachlorodibenzofuran | 1 | 2 | 0 | ||
| 1,2,3,4,7,8-Hexachlorodibenzofuran | 1 | 2 | 0 | ||
| 1,2,3,6,7,8-Hexachlorodibenzofuran | 1 | 2 | 0 | ||
| 1,2,3,7,8,9-Hexachlorodibenzofuran | 1 | 2 | 0 | ||
| 2,3,4,6,7,8-Hexachlorodibenzofuran | 1 | 2 | 0 | ||
| 1,2,3,4,6,7,8-Heptachlorodibenzofuran | 1 | 2 | 0 | ||
| 1,2,3,4,7,8,9-Heptachlorodibenzofuran | 1 | 2 | 0 | ||
| 1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin | 1 | 2 | 0 | ||
| 2,3,7,8-Tetrachlorodibenzo-p-dioxin | 1 | 2 | 0 | ||
| 2,3,7,8-Tetrachlorodibenzofuran | 1 | 2 | 0 | ||
| 1,2,3,4,6,7,8,9-Octachlorodibenzofuran | 1 | 2 | 0 | ||
| Solids, settleable | 0 | 2 | 0 | ||
| Asbestos | 0 | 2 | 0 | ||
| % Survival Flow Through 96Hr Acute Gasterosteus aculeatus | 0 | 2 | 0 | ||
| Chromium, hexavalent [as Cr] | 1 | 1 | 0 | ||
| 4,4'-DDT | 1 | 1 | 0 | ||
| BOD, carb-5 day, 20 deg C, percent removal | 1 | 1 | 0 | ||
| Solids, suspended percent removal | 1 | 1 | 0 | ||
| Temperature, water deg. centigrade | 0 | 1 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 1 | 0 | ||
| Tributyltin | 0 | 1 | 0 | ||
| Nitrite + Nitrate total [as N] | 12 | 0 | 0 | ||
| Nitrogen, inorganic total | 4 | 0 | 0 | ||
| Phosphorus, dissolved reactive [drp as P] | 4 | 0 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 2 | 0 | 0 | ||
| Flow, total | 2 | 0 | 0 | ||
| Arsenic, total recoverable | 1 | 0 | 0 | ||
| Selenium, total recoverable | 1 | 0 | 0 | ||
| Thallium, total recoverable | 1 | 0 | 0 | ||
| Chromium, trivalent [as Cr] | 1 | 0 | 0 | ||
| Nickel, total recoverable | 1 | 0 | 0 | ||
| Silver total recoverable | 1 | 0 | 0 | ||
| Zinc, total recoverable | 1 | 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 CA0037648.
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.