Clean Water Act discharge permit · NPDES MO0022985
SEYMOUR WWTF, Seymour, MO: NPDES MO0022985 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 14Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
SEYMOUR WWTF, held by City of Seymour, holds NPDES permit MO0022985, which discharges to Tributary To Finley Cr.. EPA’s file records it issued March 17, 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 | SEYMOUR WWTF |
|---|---|
| Permittee as filed | City of Seymour |
| NPDES ID | MO0022985 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 17, 2021 |
| Expiration date | December 31, 2025 |
| Address | Seymour, MO 65746 |
| Receiving water | Tributary to Finley Cr. |
| Subwatershed | Headwaters Finley Creek (HUC 110100020201) |
| Program components on file | Biosolids, POTW |
| 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
- 20Pollutants on file
- 14Under a numeric limit
- 18With a violation of any kind
- 10With 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 | 90 | 82 | February 28, 2015 | 1,363% over the limit |
| E. coli | 2 | 78 | 70 | April 30, 2026 | 99,999% over the limit |
| Oxygen, dissolved [DO] | 2 | 62 | 54 | June 30, 2025 | 72% over the limit |
| Phosphorus, total [as P] | 4 | 62 | 20 | July 31, 2025 | 268% over the limit |
| Nitrogen, ammonia total [as N] | 20 | 27 | 19 | February 28, 2025 | 433% over the limit |
| Aluminum, total recoverable | 2 | 19 | 11 | February 28, 2026 | 146% over the limit |
| Coliform, fecal general | 0 | 8 | 6 | March 31, 2014 | 812% over the limit |
| pH | 2 | 12 | 4 | December 31, 2025 | |
| BOD, 5-day, percent removal | 1 | 7 | 3 | December 31, 2024 | 567% over the limit |
| BOD, 5-day, 20 deg. C | 3 | 13 | 2 | February 28, 2019 | 200% over the limit |
| Oil and grease [soxhlet extr.] tot. | 2 | 12 | 0 | ||
| Nitrogen, nitrite total [as N] | 0 | 12 | 0 | ||
| Solids, total suspended | 3 | 8 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 8 | 0 | ||
| Solids, suspended percent removal | 1 | 4 | 0 | ||
| Nitrogen, total [as N] | 0 | 2 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 0 | 1 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 0 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 4 | 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 |
|---|---|---|
| September 9, 2026 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| September 23, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| December 26, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| September 25, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| June 21, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| January 6, 2023 | WW SSO - Failure to report violation that may endanger public health 122.41(l)(7) | ST6 |
| March 26, 2021 | Effluent Violations - Numeric effluent violation | ST6 |
| December 23, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| September 21, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| September 21, 2020 | Reporting Violations - Failure to Submit DMRs | ST6 |
| March 23, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| December 27, 2019 | Effluent Violations - Numeric effluent violation | ST6 |
| December 27, 2019 | Reporting Violations - Failure to Submit DMRs | 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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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.