Clean Water Act discharge permit · NPDES MO0097632
MAWC SHAMROCK HEIGHTS SUBDIVISION WWTP, Jefferson City, MO: NPDES MO0097632 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
MAWC SHAMROCK HEIGHTS SUBDIVISION WWTP, held by Missouri-American Water Company, holds NPDES permit MO0097632, which discharges to Tributary To Rising Cr.. EPA’s file records it issued October 13, 2020 and expiring June 30, 2025. 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 | MAWC SHAMROCK HEIGHTS SUBDIVISION WWTP |
|---|---|
| Permittee as filed | Missouri-American Water Company |
| NPDES ID | MO0097632 |
| 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 | October 13, 2020 |
| Expiration date | June 30, 2025 |
| Address | Jefferson City, MO 65101 |
| Receiving water | Tributary to Rising Cr. |
| Subwatershed | Rivaux Creek-Missouri River (HUC 103001021306) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 8Under a numeric limit
- 5With a violation of any kind
- 3With 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, colony forming units [CFU] | 0 | 25 | 25 | September 30, 2017 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 10 | 44 | 20 | March 31, 2026 | 881% over the limit |
| pH | 2 | 7 | 1 | June 30, 2025 | |
| BOD, 5-day, 20 deg. C | 2 | 4 | 0 | ||
| Solids, total suspended | 2 | 4 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Chlorine, total residual | 2 | 0 | 0 | ||
| E. coli | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MO0097632.
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 MO0097632 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.