Clean Water Act discharge permit · NPDES CA0082589
STILLWATER WWTF, Anderson, CA: NPDES CA0082589 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 189Pollutants under a numeric limit
- 11Pollutants with an effluent exceedance
STILLWATER WWTF, held by Redding, City of, holds NPDES permit CA0082589, which discharges to Sacramento River. EPA’s file records it issued May 31, 2018 and expiring June 30, 2023. 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 | STILLWATER WWTF |
|---|---|
| Permittee as filed | Redding, City of |
| NPDES ID | CA0082589 |
| 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 31, 2018 |
| Expiration date | June 30, 2023 |
| Address | Anderson, CA 96007 |
| Receiving water | Sacramento River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Clover Creek-Sacramento River (HUC 180201540305) |
| 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
- 224Pollutants on file
- 189Under a numeric limit
- 215With 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 224 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| pH | 6 | 30 | 28 | May 31, 2020 | |
| Coliform, total general | 3 | 16 | 14 | December 31, 2022 | 3,813% over the limit |
| Chlorine, total residual | 2 | 15 | 9 | October 31, 2023 | 7,200% over the limit |
| Solids, total suspended | 4 | 21 | 3 | January 31, 2022 | 1,270% over the limit |
| Nitrogen, ammonia total [as N] | 5 | 18 | 3 | January 31, 2022 | 101% over the limit |
| Copper, total recoverable | 7 | 5 | 2 | October 31, 2012 | 25% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 14 | 1 | March 31, 2018 | 16% over the limit |
| Zinc, total recoverable | 7 | 5 | 1 | September 30, 2014 | 9% over the limit |
| Dichlorobromomethane | 3 | 2 | 1 | August 31, 2009 | 22% over the limit |
| Dibromochloromethane | 3 | 2 | 1 | June 30, 2015 | 4% over the limit |
| Cyanide, total [as CN] | 3 | 1 | 1 | July 31, 2024 | 4% over the limit |
| Nitrogen, nitrite total [as N] | 3 | 10 | 0 | ||
| %Surv Static 96Hr Acute Oncorhynchus Mykiss | 0 | 9 | 0 | ||
| Nitrogen, ammonia, tot unionized [as N] | 2 | 6 | 0 | ||
| .alpha.-BHC | 1 | 5 | 0 | ||
| .gamma.-BHC | 1 | 5 | 0 | ||
| Nickel, total recoverable | 5 | 4 | 0 | ||
| Silver total recoverable | 5 | 4 | 0 | ||
| Cadmium, total recoverable | 5 | 4 | 0 | ||
| Lead, total recoverable | 5 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 4 | 0 | ||
| Diazinon + Chlorpyrifos | 4 | 4 | 0 | ||
| Solids, total dissolved | 2 | 4 | 0 | ||
| .beta.-BHC | 1 | 4 | 0 | ||
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | 4 | 3 | 0 | ||
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | 4 | 3 | 0 | ||
| TU Static Renewal 7-Day Chronic Pimphales promelas | 4 | 3 | 0 | ||
| 2,3,7,8-Tetrachlorodibenzo-p-dioxin | 1 | 3 | 0 | ||
| Phosphorus, total [as P] | 5 | 2 | 0 | ||
| Chloride [as Cl] | 5 | 2 | 0 | ||
| Iron, total recoverable | 5 | 2 | 0 | ||
| Boron, total recoverable | 5 | 2 | 0 | ||
| Manganese, total recoverable | 5 | 2 | 0 | ||
| Alkalinity, total [as CaCO3] | 4 | 2 | 0 | ||
| Calcium, total recoverable | 4 | 2 | 0 | ||
| Magnesium, total recoverable | 4 | 2 | 0 | ||
| Sodium, total recoverable | 4 | 2 | 0 | ||
| Potassium, total recoverable | 4 | 2 | 0 | ||
| Chlorpyrifos | 4 | 2 | 0 | ||
| Diazinon | 4 | 2 | 0 | ||
| Nitrogen, nitrate total [as N] | 3 | 2 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 2 | 0 | ||
| Mercury, total recoverable | 1 | 2 | 0 | ||
| 1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin | 0 | 2 | 0 | ||
| 1,2,3,7,8-Pentachlorodibenzo-p-dioxin | 0 | 2 | 0 | ||
| 1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin | 0 | 2 | 0 | ||
| 1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin | 0 | 2 | 0 | ||
| 1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin | 0 | 2 | 0 | ||
| 1,2,3,7,8-Pentachlorodibenzofuran | 0 | 2 | 0 | ||
| 2,3,4,7,8-Pentachlorodibenzofuran | 0 | 2 | 0 | ||
| 1,2,3,4,7,8-Hexachlorodibenzofuran | 0 | 2 | 0 | ||
| 1,2,3,6,7,8-Hexachlorodibenzofuran | 0 | 2 | 0 | ||
| 1,2,3,7,8,9-Hexachlorodibenzofuran | 0 | 2 | 0 | ||
| 2,3,4,6,7,8-Hexachlorodibenzofuran | 0 | 2 | 0 | ||
| 1,2,3,4,6,7,8-Heptachlorodibenzofuran | 0 | 2 | 0 | ||
| 1,2,3,4,7,8,9-Heptachlorodibenzofuran | 0 | 2 | 0 | ||
| 1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin | 0 | 2 | 0 | ||
| 2,3,7,8-Tetrachlorodibenzofuran | 0 | 2 | 0 | ||
| 1,2,3,4,6,7,8,9-Octachlorodibenzofuran | 0 | 2 | 0 | ||
| TCDD equivalents | 0 | 2 | 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 CA0082589.
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.