Clean Water Act discharge permit · NPDES MO0103241
LAKE OF THE OZARKS REGIONAL WWTP 1, Lake Ozark, MO: NPDES MO0103241 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 19Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
LAKE OF THE OZARKS REGIONAL WWTP 1, held by Lake Ozark and Osage Beach Joint Board, holds NPDES permit MO0103241, which discharges to Tributary To Osage River. EPA’s file records it issued February 21, 2017 and expiring December 31, 2020. 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 | LAKE OF THE OZARKS REGIONAL WWTP 1 |
|---|---|
| Permittee as filed | Lake Ozark and Osage Beach Joint Board |
| NPDES ID | MO0103241 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 21, 2017 |
| Expiration date | December 31, 2020 |
| Address | Lake Ozark, MO 65049 |
| Receiving water | Tributary to Osage River |
| Subwatershed | Bagnell Dam-Osage River (HUC 102901110203) |
| Program components on file | Biosolids, POTW |
| 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
- 24Pollutants on file
- 19Under a numeric limit
- 11With a violation of any kind
- 2With 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 | 176 | 2 | February 28, 2007 | 584% over the limit |
| pH | 2 | 531 | 1 | March 31, 2008 | |
| Chlorine, total residual | 0 | 234 | 0 | ||
| Solids, total suspended | 2 | 174 | 0 | ||
| Coliform, fecal general | 0 | 108 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 79 | 0 | ||
| Phosphorus, total [as P] | 4 | 4 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 4 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 4 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 1 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 1 | 1 | 0 | ||
| Nitrogen, ammonia total [as N] | 8 | 0 | 0 | ||
| Nitrogen, total [as N] | 4 | 0 | 0 | ||
| Selenium, total recoverable | 4 | 0 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 0 | 0 | ||
| Cadmium, total recoverable | 2 | 0 | 0 | ||
| Copper, total recoverable | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| E. coli | 2 | 0 | 0 | ||
| Toxicity [chronic], Ceriodaphnia dubia | 1 | 0 | 0 | ||
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 1 | 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 |
|---|---|---|
| August 29, 2017 | Management Practice Violations - No Licensed/Certified Operator | ST6 |
| August 29, 2017 | Permit Violations - Violation Specified in Comment | 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 MO0103241 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 October 14, 2026.