Clean Water Act discharge permit · NPDES MO0103594
SCOTT CITY WWTF, Scott City, MO: NPDES MO0103594 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 14Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
SCOTT CITY WWTF, held by City of Scott City, holds NPDES permit MO0103594, which discharges to Mississippi R.. EPA’s file records it issued June 24, 2019 and expiring September 30, 2023. 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 | SCOTT CITY WWTF |
|---|---|
| Permittee as filed | City of Scott City |
| NPDES ID | MO0103594 |
| 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 | June 24, 2019 |
| Expiration date | September 30, 2023 |
| Address | Scott City, MO 63780 |
| Receiving water | Mississippi R. |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Holden Creek-Mississippi River (HUC 071401050801) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 14Pollutants on file
- 14Under a numeric limit
- 13With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 4 | 23 | 21 | June 30, 2019 | 632% over the limit |
| BOD, 5-day, percent removal | 1 | 21 | 21 | December 31, 2025 | 542% over the limit |
| BOD, 5-day, 20 deg. C | 3 | 15 | 15 | December 31, 2025 | 165% over the limit |
| Solids, suspended percent removal | 1 | 5 | 5 | November 30, 2025 | 458% over the limit |
| Solids, total suspended | 3 | 6 | 4 | September 30, 2024 | 230% over the limit |
| pH | 2 | 28 | 1 | May 31, 2011 | |
| E. coli | 2 | 3 | 1 | May 31, 2025 | 116% over the limit |
| Nitrite + Nitrate total [as N] | 4 | 4 | 0 | ||
| Phosphorus, total [as P] | 4 | 4 | 0 | ||
| Nitrogen, total Kjeldahl | 4 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 1 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 1 | 1 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 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
- 6Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| April 10, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
| April 3, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
| March 31, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| March 31, 2021 | Effluent Violations - Numeric effluent violation | ST6 |
| October 9, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| July 9, 2019 | 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 MO0103594 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.