Clean Water Act discharge permit · NPDES MO0099040
KNOLLS RESORT CONDOMINIUMS WWTF, Osage Beach, MO: NPDES MO0099040 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
KNOLLS RESORT CONDOMINIUMS WWTF, held by Lake Area Waste Water Association, Inc., holds NPDES permit MO0099040, which discharges to Lake Of The Ozarks. EPA’s file records it issued July 1, 2017 and expiring June 30, 2022. 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 | KNOLLS RESORT CONDOMINIUMS WWTF |
|---|---|
| Permittee as filed | Lake Area Waste Water Association, Inc. |
| NPDES ID | MO0099040 |
| 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 | July 1, 2017 |
| Expiration date | June 30, 2022 |
| Address | Osage Beach, MO 65065 |
| Receiving water | Lake of the Ozarks |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Linn Creek-Lake of the Ozarks (HUC 102901090401) |
| SIC | 8641 – Civic And Social Associations |
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
- 12Pollutants on file
- 10Under a numeric limit
- 9With a violation of any kind
- 6With 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 | 88 | 76 | May 31, 2020 | 1,525% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 13 | 11 | March 31, 2026 | 866% over the limit |
| E. coli | 2 | 7 | 7 | June 30, 2025 | 99,999% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 12 | 2 | August 31, 2023 | 69% over the limit |
| Ammonia [as N] + unionized ammonia | 0 | 2 | 2 | March 31, 2014 | 100% over the limit |
| pH | 2 | 9 | 1 | May 31, 2018 | |
| Solids, total suspended | 2 | 6 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 6 | 0 | ||
| Coliform, fecal general | 0 | 6 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 0 | 0 | ||
| Nitrogen, total [as N] | 2 | 0 | 0 | ||
| Phosphorus, total [as P] | 2 | 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
- 5Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 27, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| August 27, 2025 | Effluent Violations - Narrative Effluent Violation | ST6 |
| August 27, 2025 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| August 27, 2025 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| July 8, 2025 | Effluent Violations - Numeric effluent violation | 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, MO0099040.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 MO0099040 there.
Nearby on the register
- Discharge permits in Osage Beach
- Every permit record in Osage Beach, A to Z
- Discharge permits in Missouri
- Every permit record in Missouri, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.