Clean Water Act discharge permit · NPDES MO0139246
THE CHARLESTON WWTF, Lake Ozark, MO: NPDES MO0139246 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
THE CHARLESTON WWTF, held by CAMDEN COUNTY PUBLIC WATER SUPPLY, holds NPDES permit MO0139246, which discharges to Lake Of The Ozarks. EPA’s file records it issued September 10, 2019 and expiring September 30, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | THE CHARLESTON WWTF |
|---|---|
| Permittee as filed | CAMDEN COUNTY PUBLIC WATER SUPPLY |
| NPDES ID | MO0139246 |
| 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 | September 10, 2019 |
| Expiration date | September 30, 2021 |
| Address | Lake Ozark, MO 65049 |
| Receiving water | Lake of the Ozarks |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Buck Creek-Lake of the Ozarks (HUC 102901090406) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 10Pollutants on file
- 10Under a numeric limit
- 1With 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 | 2 | 2 | September 30, 2022 | 27% over the limit |
| BOD, 5-day, 20 deg. C | 3 | 0 | 0 | ||
| Solids, total suspended | 3 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Chlorine, total residual | 2 | 0 | 0 | ||
| E. coli | 2 | 0 | 0 | ||
| BOD, 5-day, percent removal | 1 | 0 | 0 | ||
| Solids, suspended percent removal | 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 |
|---|---|---|
| October 29, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| November 16, 2023 | 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 MO0139246 there.
Nearby on the register
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- Every permit record in Lake Ozark, A to Z
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- Every permit record in Missouri, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.