Clean Water Act discharge permit · NPDES MOGD00141
HORSESHOE BEND - LOTS 58A AND 58B WWTP, Lake Ozark, MO: NPDES MOGD00141 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
HORSESHOE BEND - LOTS 58A AND 58B WWTP, held by David Rygh, holds NPDES permit MOGD00141, which discharges to Lake Of The Ozarks. 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 | HORSESHOE BEND - LOTS 58A AND 58B WWTP |
|---|---|
| Permittee as filed | David Rygh |
| NPDES ID | MOGD00141 |
| 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 | Lake Ozark, MO 65049 |
| Receiving water | Lake of the Ozarks |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Lick Branch-Lake of the Ozarks (HUC 102901090407) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 8Under a numeric limit
- 9With 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 |
|---|---|---|---|---|---|
| E. coli | 2 | 8 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 6 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 6 | 0 | ||
| pH | 2 | 6 | 0 | ||
| Solids, total suspended | 2 | 6 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 6 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 6 | 0 | ||
| Chlorine, total residual | 2 | 6 | 0 | ||
| E. coli, colony forming units [CFU] | 0 | 2 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MOGD00141.
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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 10, 2023 | Effluent Violations - Narrative Effluent Violation | ST6 |
| March 10, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| March 10, 2023 | Reporting Violations - Improper/ Incorrect Reporting | 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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MOGD00141.
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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 MOGD00141 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 15, 2026.