Clean Water Act discharge permit · NPDES MO0135763
WYETH HOLDINGS LLC, Palmyra, MO: NPDES MO0135763 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
WYETH HOLDINGS LLC, held by Wyeth Holdings LLC, holds NPDES permit MO0135763, which discharges to Tributary To Bay De Charles. EPA’s file records it issued October 1, 2018 and expiring September 30, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | WYETH HOLDINGS LLC |
|---|---|
| Permittee as filed | Wyeth Holdings LLC |
| NPDES ID | MO0135763 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 1, 2018 |
| Expiration date | September 30, 2023 |
| Address | Palmyra, MO 63461 |
| Receiving water | Tributary to Bay De Charles |
| Subwatershed | Bay Island-Mississippi River (HUC 071100040304) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 11Under a numeric limit
- 9With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Tetrachloroethylene | 2 | 28 | 12 | August 31, 2014 | 25% over the limit |
| Chlorobenzene | 2 | 8 | 2 | August 31, 2010 | 2,100% over the limit |
| 1,1,2-Trichloroethane | 2 | 7 | 1 | August 31, 2010 | 33% over the limit |
| Vinyl chloride | 2 | 7 | 1 | August 31, 2010 | 33% over the limit |
| Trichloroethene | 2 | 7 | 1 | August 31, 2010 | 33% over the limit |
| Benzene | 2 | 3 | 1 | August 31, 2010 | 33% over the limit |
| pH | 2 | 4 | 0 | ||
| 1,2-Dichloroethane | 2 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 4 | 0 | ||
| Toxicity [chronic], Ceriodaphnia dubia | 1 | 0 | 0 | ||
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 28, 2025 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| July 9, 2019 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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 MO0135763 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.