Clean Water Act discharge permit · NPDES MO0035726
MAWC MAPLEWOOD SUBDIVISION WWTP, Sedalia, MO: NPDES MO0035726 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
MAWC MAPLEWOOD SUBDIVISION WWTP, held by Missouri-American Water Company, holds NPDES permit MO0035726, which discharges to Tributary To Flat Cr.. EPA’s file records it issued March 10, 2021 and expiring December 31, 2025. 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 | MAWC MAPLEWOOD SUBDIVISION WWTP |
|---|---|
| Permittee as filed | Missouri-American Water Company |
| NPDES ID | MO0035726 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | March 10, 2021 |
| Expiration date | December 31, 2025 |
| Address | Sedalia, MO 65301 |
| Receiving water | Tributary to Flat Cr. |
| Subwatershed | McGee Branch-Flat Creek (HUC 103001030303) |
| 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
- 8Pollutants on file
- 6Under a numeric limit
- 7With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 2 | 67 | 67 | March 31, 2026 | 253% over the limit |
| Nitrogen, ammonia total [as N] | 18 | 64 | 64 | February 28, 2025 | 1,236% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 30 | 30 | December 31, 2019 | 180% over the limit |
| pH | 2 | 14 | 14 | August 31, 2023 | |
| E. coli | 2 | 12 | 12 | May 31, 2023 | 99,999% over the limit |
| Nitrogen, Kjeldahl, total [as N] | 0 | 2 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 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
- 13Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 8, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| December 8, 2025 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| March 28, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| September 27, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| June 28, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| June 30, 2023 | Effluent Violations - Numeric effluent violation | ST6 |
| March 31, 2023 | Effluent Violations - Numeric effluent violation | ST6 |
| December 30, 2022 | Effluent Violations - Numeric effluent violation | ST6 |
| December 30, 2022 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| August 18, 2021 | Effluent Violations - Numeric effluent violation | ST6 |
| July 2, 2021 | Effluent Violations - Numeric effluent violation | ST6 |
| July 2, 2021 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| July 9, 2019 | 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.
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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 MO0035726 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.