Clean Water Act discharge permit · NPDES MOGD00286
OAK SHADOWS SUBDIVISION WWTF, Osage Beach, MO: NPDES MOGD00286 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
OAK SHADOWS SUBDIVISION WWTF, held by Lake Area Wastewater Association, holds NPDES permit MOGD00286. EPA’s file records it issued July 1, 2019 and expiring June 30, 2024. 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 | OAK SHADOWS SUBDIVISION WWTF |
|---|---|
| Permittee as filed | Lake Area Wastewater Association |
| NPDES ID | MOGD00286 |
| 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, 2019 |
| Expiration date | June 30, 2024 |
| Address | Osage Beach, MO 65065 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Linn Creek-Lake of the Ozarks (HUC 102901090401) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 8Pollutants on file
- 8Under 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 2 | 16 | 12 | June 30, 2026 | 99,999% over the limit |
| Chlorine, total residual | 2 | 8 | 6 | December 31, 2019 | 1,525% over the limit |
| Nitrogen, ammonia total [as N] | 2 | 8 | 4 | March 31, 2026 | 1,731% over the limit |
| Solids, total suspended | 2 | 6 | 2 | March 31, 2026 | 450% over the limit |
| pH | 2 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 4 | 0 | ||
| E. coli | 2 | 4 | 0 | ||
| Oxygen, dissolved [DO] | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| September 1, 2023 | Reporting Violations - Failure to Submit DMRs | 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 MOGD00286 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 September 15, 2026.