Clean Water Act discharge permit · NPDES MO0041734
MDNR SAM A. BAKER STATE PARK WWTF, Patterson, MO: NPDES MO0041734 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MDNR SAM A. BAKER STATE PARK WWTF, held by MDNR Division of State Parks, holds NPDES permit MO0041734, which discharges to Tributary To Big Cr.. EPA’s file records it issued June 12, 2018 and expiring June 30, 2022. 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 | MDNR SAM A. BAKER STATE PARK WWTF |
|---|---|
| Permittee as filed | MDNR Division of State Parks |
| NPDES ID | MO0041734 |
| 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 |
| Program | Publicly owned treatment works |
| Issued | June 12, 2018 |
| Expiration date | June 30, 2022 |
| Address | Patterson, MO 63956 |
| Receiving water | Tributary to Big Cr. |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Lower Big Creek (HUC 080202020304) |
| 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
- 13Pollutants on file
- 8Under a numeric limit
- 11With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| Rainfall | 2 | 10 | 0 | ||
| Application rate area sprayed | 2 | 10 | 0 | ||
| Application rate, gallons spray irrigation | 2 | 10 | 0 | ||
| Spray irrigation | 2 | 10 | 0 | ||
| Spray irrigation, application rate | 2 | 10 | 0 | ||
| Depth to water level ft below landsurface | 1 | 5 | 0 | ||
| BOD, 5-day, 20 deg. C | 0 | 2 | 0 | ||
| pH | 0 | 2 | 0 | ||
| Solids, total suspended | 0 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 2 | 0 | ||
| Coliform, fecal general | 0 | 2 | 0 | ||
| Nitrogen, nitrate total [as N] | 1 | 0 | 0 | ||
| Nitrogen, total Kjeldahl | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MO0041734.
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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| April 11, 2017 | Permit Violations - Failure to Submit Timely Permit Renewal Application | 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 MO0041734 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.