Clean Water Act discharge permit · NPDES MO0094161
WAYNESVILLE WWTP, Waynesville, MO: NPDES MO0094161 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 16Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
WAYNESVILLE WWTP, held by City of Waynseville, holds NPDES permit MO0094161, which discharges to Roubidoux Creek. EPA’s file records it issued May 25, 2016 and expiring June 30, 2020. 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 | WAYNESVILLE WWTP |
|---|---|
| Permittee as filed | City of Waynseville |
| NPDES ID | MO0094161 |
| 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 25, 2016 |
| Expiration date | June 30, 2020 |
| Address | Waynesville, MO 65583 |
| Receiving water | Roubidoux Creek |
| Subwatershed | Smith Branch-Roubidoux Creek (HUC 102902010507) |
| Program components on file | Biosolids, POTW |
| 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
- 16Under a numeric limit
- 18With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 8 | 33 | 18 | July 31, 2009 | 2,220% over the limit |
| BOD, 5-day, 20 deg. C | 9 | 329 | 8 | July 31, 2011 | 112% over the limit |
| pH | 4 | 140 | 2 | November 30, 2012 | |
| Chlorine, total residual | 0 | 76 | 2 | April 30, 2010 | 102,900% over the limit |
| Oxygen, dissolved [DO] | 0 | 197 | 0 | ||
| Solids, total suspended | 5 | 196 | 0 | ||
| Coliform, fecal general | 0 | 74 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 6 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 4 | 4 | 0 | ||
| E. coli, colony forming units [CFU] | 0 | 4 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 0 | 3 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 0 | 3 | 0 | ||
| Selenium, total recoverable | 4 | 2 | 0 | ||
| Copper, total recoverable | 4 | 2 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 2 | 1 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 2 | 1 | 0 | ||
| Toxicity [chronic], Ceriodaphnia dubia | 1 | 1 | 0 | ||
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 1 | 1 | 0 | ||
| Nitrogen, total [as N] | 6 | 0 | 0 | ||
| Phosphorus, total [as P] | 6 | 0 | 0 | ||
| E. coli | 4 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 16, 2025 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| July 16, 2025 | WW SSO - Failure to report violation that may endanger public health 122.41(l)(7) | 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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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.