Clean Water Act discharge permit · NPDES MO0099252
NPSD ANTIRE SPRINGS WWTP, High Ridge, MO: NPDES MO0099252 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
NPSD ANTIRE SPRINGS WWTP, held by Northeast Public Sewer District, holds NPDES permit MO0099252, which discharges to Antire Creek. EPA’s file records it issued November 13, 2017 and expiring September 30, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | NPSD ANTIRE SPRINGS WWTP |
|---|---|
| Permittee as filed | Northeast Public Sewer District |
| NPDES ID | MO0099252 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | November 13, 2017 |
| Expiration date | September 30, 2022 |
| Address | High Ridge, MO 63049 |
| Receiving water | Antire Creek |
| Subwatershed | Hamilton Creek-Meramec River (HUC 071401021001) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 10Pollutants on file
- 10Under a numeric limit
- 5With 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 |
|---|---|---|---|---|---|
| Chlorine, total residual | 2 | 15 | 15 | September 30, 2013 | 500% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 2 | 2 | April 30, 2008 | 333% over the limit |
| Solids, total suspended | 2 | 2 | 2 | April 30, 2008 | 110% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 1 | 1 | March 31, 2017 | 218% over the limit |
| Solids, suspended percent removal | 1 | 1 | 1 | June 30, 2023 | 43% over the limit |
| Oxygen, dissolved [DO] | 2 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| E. coli | 2 | 0 | 0 | ||
| BOD, 5-day, 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 8, 2017 | 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.
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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 MO0099252 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.