Clean Water Act discharge permit · NPDES MOGD00349
BIG CHIEF WWTP, Wildwood, MO: NPDES MOGD00349 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
BIG CHIEF WWTP, held by Big Chief Holdings LLC, holds NPDES permit MOGD00349, which discharges to Tributary To Bonhomme Creek. EPA’s file records it issued July 1, 2018 and expiring June 30, 2019. 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 | BIG CHIEF WWTP |
|---|---|
| Permittee as filed | Big Chief Holdings LLC |
| NPDES ID | MOGD00349 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | July 1, 2018 |
| Expiration date | June 30, 2019 |
| Address | Wildwood, MO 63038 |
| Receiving water | Tributary to Bonhomme Creek |
| Subwatershed | Bonhomme Creek (HUC 103002000701) |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 6512 – Nonresidential Building Operators |
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
- 8Pollutants on file
- 8Under a numeric limit
- 8With a violation of any kind
- 1With 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] | 4 | 7 | 3 | June 30, 2024 | 29% over the limit |
| Oxygen, dissolved [DO] | 2 | 4 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 4 | 0 | ||
| pH | 2 | 4 | 0 | ||
| Solids, total suspended | 2 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 4 | 0 | ||
| Chlorine, total residual | 2 | 4 | 0 | ||
| E. coli | 2 | 4 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| September 15, 2021 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| December 30, 2020 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| December 30, 2020 | Reporting Violations - Failure to Submit DMRs | 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 MOGD00349 there.
Nearby on the register
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- Every permit record in Missouri, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.