Clean Water Act discharge permit · NPDES MO0023272
CALIFORNIA SOUTH WWTP, California, MO: NPDES MO0023272 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 13Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
CALIFORNIA SOUTH WWTP, held by City of California, holds NPDES permit MO0023272, which discharges to N. Moreau Cr.. EPA’s file records it issued March 17, 2026 and expiring March 31, 2031. 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 | CALIFORNIA SOUTH WWTP |
|---|---|
| Permittee as filed | City of California |
| NPDES ID | MO0023272 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 17, 2026 |
| Expiration date | March 31, 2031 |
| Address | California, MO 65018 |
| Receiving water | N. Moreau Cr. |
| Subwatershed | Upper North Moreau River (HUC 103001021107) |
| 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
- 22Pollutants on file
- 13Under a numeric limit
- 20With a violation of any kind
- 3With 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 |
|---|---|---|---|---|---|
| Solids, suspended percent removal | 1 | 3 | 3 | May 31, 2025 | 91% over the limit |
| Oil and grease [soxhlet extr.] tot. | 0 | 6 | 2 | May 31, 2015 | 53% over the limit |
| Solids, total suspended | 3 | 9 | 1 | December 31, 2024 | 13% over the limit |
| Chloride | 0 | 66 | 0 | ||
| pH | 2 | 61 | 0 | ||
| BOD, 5-day, 20 deg. C | 5 | 29 | 0 | ||
| Phosphorus, total [as P] | 4 | 12 | 0 | ||
| Nitrogen, total [as N] | 2 | 8 | 0 | ||
| Nitrogen, ammonia total [as N] | 14 | 6 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 4 | 0 | ||
| Nitrite + Nitrate total [as N] | 4 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 4 | 0 | ||
| Copper, total recoverable | 0 | 4 | 0 | ||
| E. coli | 2 | 2 | 0 | ||
| Ammonia [as N] + unionized ammonia | 0 | 2 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 0 | 2 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 0 | 1 | 0 | ||
| Toxicity [chronic], Ceriodaphnia dubia | 0 | 1 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 0 | 1 | 0 | ||
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 0 | 1 | 0 | ||
| BOD, 5-day, percent removal | 1 | 0 | 0 | ||
| Flow, total | 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
- 10Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| April 21, 2026 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| April 21, 2026 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| April 21, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| January 12, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| April 13, 2018 | Permit Violations - Violation Specified in Comment | ST6 |
| April 13, 2018 | Effluent Violations - Narrative Effluent Violation | ST6 |
| April 13, 2018 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| April 13, 2018 | Effluent Violations - Numeric effluent violation | ST6 |
| April 13, 2018 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| April 13, 2018 | WW Storm Water Construction - Failure to develop any or adequate SWPPP/SWMP | ST6 |
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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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 MO0023272 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.