Clean Water Act discharge permit · NPDES MO0055182
BENTON WWTF, Benton, MO: NPDES MO0055182 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 14Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
BENTON WWTF, held by City of Benton, holds NPDES permit MO0055182, which discharges to Tributary To Caney Creek. EPA’s file records it issued August 23, 2016 and expiring March 31, 2021. 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 | BENTON WWTF |
|---|---|
| Permittee as filed | City of Benton |
| NPDES ID | MO0055182 |
| 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 | August 23, 2016 |
| Expiration date | March 31, 2021 |
| Address | Benton, MO 63736 |
| Receiving water | Tributary to Caney Creek |
| Subwatershed | Caney Creek (HUC 080202040101) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 16Pollutants on file
- 14Under a numeric limit
- 12With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 10 | 113 | 98 | June 30, 2026 | 500% over the limit |
| pH | 4 | 99 | 95 | April 30, 2024 | |
| Solids, suspended percent removal | 2 | 48 | 46 | May 31, 2026 | 567% over the limit |
| Nitrogen, ammonia total [as N] | 14 | 50 | 40 | July 31, 2026 | 406% over the limit |
| BOD, 5-day, percent removal | 2 | 33 | 31 | May 31, 2026 | 449% over the limit |
| BOD, 5-day, 20 deg. C | 10 | 38 | 23 | May 31, 2026 | 154% over the limit |
| Alkalinity, total [as CaCO3] | 10 | 8 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 4 | 0 | ||
| Phosphorus, total [as P] | 2 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 2 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 2 | 0 | ||
| Nitrogen, total [as N] | 2 | 0 | 0 | ||
| E. coli | 2 | 0 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 0 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 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
- 15Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| January 30, 2025 | WW SSO - Failure to report violation that may endanger public health 122.41(l)(7) | ST6 |
| September 30, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| June 28, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| December 12, 2023 | Effluent Violations - Numeric effluent violation | ST6 |
| December 12, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| December 12, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| December 12, 2023 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| April 5, 2023 | Effluent Violations - Numeric effluent violation | ST6 |
| December 27, 2022 | Effluent Violations - Numeric effluent violation | ST6 |
| July 7, 2021 | Effluent Violations - Numeric effluent violation | ST6 |
| March 31, 2021 | Effluent Violations - Numeric effluent violation | ST6 |
| October 21, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| December 31, 2019 | Effluent Violations - Numeric effluent violation | ST6 |
| September 24, 2019 | Effluent Violations - Numeric effluent violation | ST6 |
| July 8, 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 MO0055182 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.