Clean Water Act discharge permit · NPDES CA0037427
PARADISE COVE WWTP, Tiburon, CA: NPDES CA0037427 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 17Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
PARADISE COVE WWTP, held by Sanitary District No. 5 of Marin County, holds NPDES permit CA0037427, which discharges to San Francisco Bay. EPA’s file records it issued April 13, 2011 and expiring May 31, 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 | PARADISE COVE WWTP |
|---|---|
| Permittee as filed | Sanitary District No. 5 of Marin County |
| NPDES ID | CA0037427 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 13, 2011 |
| Expiration date | May 31, 2016 |
| Address | Tiburon, CA 94920 |
| Receiving water | San Francisco Bay |
| 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
- 21Pollutants on file
- 17Under a numeric limit
- 12With 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.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 5 | 2 | 2 | March 31, 2026 | 717% over the limit |
| Chlorine, total residual | 3 | 18 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 4 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 4 | 0 | ||
| Nitrogen, inorganic total | 0 | 4 | 0 | ||
| Phosphorus, total [as P] | 0 | 4 | 0 | ||
| Mercury, total recoverable | 3 | 3 | 0 | ||
| Oil and grease | 3 | 2 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 2 | 2 | 0 | ||
| %Surv Static Renewal 96Hr Oncorhynchus mykiss | 2 | 2 | 0 | ||
| Cyanide, total [as CN] | 3 | 1 | 0 | ||
| 2,3,7,8-Tetrachlorodibenzo-p-dioxin | 0 | 1 | 0 | ||
| Solids, total suspended | 5 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| Copper, total recoverable | 3 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Coliform, total general | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Methylmercury | 1 | 0 | 0 | ||
| BOD, 5-day, percent removal | 1 | 0 | 0 | ||
| Solids, suspended percent removal | 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 CA0037427.
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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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 CA0037427 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.