Clean Water Act discharge permit · NPDES MO0128490
NPSD INTERIM SALINE CREEK REGIONAL WWTP, Fenton, MO: NPDES MO0128490 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 17Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
NPSD INTERIM SALINE CREEK REGIONAL WWTP, held by Northeast Public Sewer District, holds NPDES permit MO0128490, which discharges to Tributary To Meramec R.. EPA’s file records it issued May 29, 2019 and expiring June 30, 2023. 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 INTERIM SALINE CREEK REGIONAL WWTP |
|---|---|
| Permittee as filed | Northeast Public Sewer District |
| NPDES ID | MO0128490 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | May 29, 2019 |
| Expiration date | June 30, 2023 |
| Address | Fenton, MO 63026 |
| Receiving water | Tributary to Meramec R. |
| Subwatershed | Sugar Creek-Meramec River (HUC 071401021003) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 23Pollutants on file
- 17Under a numeric limit
- 12With 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 | 0 | 39 | 17 | August 31, 2013 | 125% over the limit |
| Solids, total suspended | 2 | 140 | 2 | November 30, 2021 | 2,749% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 139 | 1 | November 30, 2021 | 53% over the limit |
| BOD, 5-day, percent removal | 1 | 1 | 1 | November 30, 2021 | 7% over the limit |
| Solids, suspended percent removal | 1 | 1 | 1 | November 30, 2021 | 363% over the limit |
| Ammonia [as N] + unionized ammonia | 0 | 30 | 0 | ||
| pH | 2 | 20 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 18 | 0 | ||
| Solids, settleable | 0 | 10 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 0 | 4 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 0 | 4 | 0 | ||
| Coliform, fecal general | 0 | 2 | 0 | ||
| Nitrogen, ammonia total [as N] | 8 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 6 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 6 | 0 | 0 | ||
| Phosphorus, total [as P] | 6 | 0 | 0 | ||
| Cadmium, total recoverable | 4 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 0 | 0 | ||
| Copper, total recoverable | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| E. coli | 2 | 0 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 2 | 0 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 18, 2025 | Pretreatment - Failure to Develop/Enforce Standards | ST6 |
| November 18, 2025 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| September 1, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| January 16, 2020 | Pretreatment - Failure to Develop/Enforce Standards | 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 MO0128490 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.