Clean Water Act discharge permit · NPDES MO0041467
PWSD NO1 OF GASCONADE COUNTY WWTF, Owensville, MO: NPDES MO0041467 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
PWSD NO1 OF GASCONADE COUNTY WWTF, held by Public Water District No. 1 of Gasconade, holds NPDES permit MO0041467, which discharges to Unnamed Tributary To Cedar Branch. EPA’s file records it issued December 10, 2013 and expiring December 31, 2018. 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 | PWSD NO1 OF GASCONADE COUNTY WWTF |
|---|---|
| Permittee as filed | Public Water District No. 1 of Gasconade |
| NPDES ID | MO0041467 |
| 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 | December 10, 2013 |
| Expiration date | December 31, 2018 |
| Address | Owensville, MO 65066 |
| Receiving water | Unnamed tributary to Cedar Branch |
| Subwatershed | Upper Third Creek (HUC 102902030305) |
| 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
- 9Pollutants on file
- 7Under a numeric limit
- 9With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| pH | 1 | 12 | 6 | March 31, 2020 | |
| Solids, total suspended | 2 | 11 | 5 | September 30, 2011 | 68% over the limit |
| Solids, suspended percent removal | 0 | 7 | 4 | March 31, 2021 | 186% over the limit |
| BOD, 5-day, percent removal | 0 | 6 | 3 | March 31, 2020 | 103% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 10 | 2 | June 30, 2020 | 25% over the limit |
| Nitrogen, ammonia total [as N] | 2 | 6 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 6 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 1 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 1 | 1 | 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
- 6Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 15, 2023 | Permit Violations - Failure to Submit Timely Permit Renewal Application | ST6 |
| December 15, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| December 15, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| November 20, 2023 | Reporting Violations - Failure to Submit DMRs | ST6 |
| July 15, 2021 | Effluent Violations - Numeric effluent violation | ST6 |
| June 30, 2020 | Effluent Violations - Numeric effluent violation | 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.
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 MO0041467 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.