Clean Water Act discharge permit · NPDES MO0120201
WINDSONG MHP WWTP, Gravois Mills, MO: NPDES MO0120201 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
WINDSONG MHP WWTP, held by Ray L. Grady, holds NPDES permit MO0120201, which discharges to Tributary To Lake Of The Ozarks. EPA’s file records it issued May 22, 2017 and expiring May 31, 2022. 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 | WINDSONG MHP WWTP |
|---|---|
| Permittee as filed | Ray L. Grady |
| NPDES ID | MO0120201 |
| 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 | May 22, 2017 |
| Expiration date | May 31, 2022 |
| Address | Gravois Mills, MO 65037 |
| Receiving water | Tributary to Lake of the Ozarks |
| Subwatershed | Soap Creek-Lake of the Ozarks (HUC 102901090405) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 8Pollutants on file
- 7Under a numeric limit
- 8With 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 |
|---|---|---|---|---|---|
| Chlorine, total residual | 2 | 15 | 12 | March 31, 2020 | 1,525% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 8 | 6 | September 30, 2021 | 56% over the limit |
| E. coli | 2 | 6 | 4 | June 30, 2026 | 99,999% over the limit |
| Coliform, fecal general | 0 | 3 | 2 | March 31, 2009 | 51% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 2 | 0 | ||
| pH | 2 | 2 | 0 | ||
| Solids, total suspended | 2 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MO0120201.
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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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 MO0120201 there.
Nearby on the register
- Discharge permits in Gravois Mills
- Every permit record in Gravois Mills, A to Z
- Discharge permits in Missouri
- Every permit record in Missouri, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.