Clean Water Act discharge permit · NPDES MO0130371
OAK GROVE WWTP, Oak Grove, MO: NPDES MO0130371 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 20Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
OAK GROVE WWTP, held by City of Oak Grove, holds NPDES permit MO0130371, which discharges to Tributary To Sni-A-Bar Cr.. EPA’s file records it issued May 10, 2019 and expiring March 31, 2024. 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 | OAK GROVE WWTP |
|---|---|
| Permittee as filed | City of Oak Grove |
| NPDES ID | MO0130371 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | May 10, 2019 |
| Expiration date | March 31, 2024 |
| Address | Oak Grove, MO 64075 |
| Receiving water | Tributary to Sni-a-bar Cr. |
| Subwatershed | Sni-A-Bar Creek (HUC 103001010506) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 32Pollutants on file
- 20Under a numeric limit
- 29With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 6 | 38 | 4 | February 28, 2025 | 250% over the limit |
| E. coli | 2 | 14 | 2 | July 31, 2018 | 135% over the limit |
| Ammonia [as N] + unionized ammonia | 0 | 87 | 1 | May 31, 2010 | 11% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 34 | 1 | September 30, 2014 | 5% over the limit |
| Copper, total recoverable | 2 | 7 | 1 | March 31, 2017 | 33% over the limit |
| Solids, total suspended | 2 | 117 | 0 | ||
| pH | 2 | 107 | 0 | ||
| Nitrite + Nitrate total [as N] | 4 | 34 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 32 | 0 | ||
| Phosphorus, total [as P] | 4 | 32 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 22 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 20 | 0 | ||
| Nitrogen, total [as N] | 0 | 18 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 12 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 11 | 0 | ||
| BOD, 5-day, percent removal | 1 | 8 | 0 | ||
| Solids, suspended percent removal | 1 | 8 | 0 | ||
| Flow, total | 0 | 8 | 0 | ||
| Cadmium, total recoverable | 2 | 6 | 0 | ||
| Nickel, total recoverable | 0 | 6 | 0 | ||
| Zinc, total recoverable | 0 | 6 | 0 | ||
| Antimony, total recoverable | 0 | 6 | 0 | ||
| Temperature, water deg. fahrenheit | 0 | 4 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 0 | 4 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 0 | 4 | 0 | ||
| E. coli, colony forming units [CFU] | 0 | 2 | 0 | ||
| Coliform, fecal general | 0 | 2 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 2 | 1 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 2 | 1 | 0 | ||
| Selenium, total recoverable | 2 | 0 | 0 | ||
| Toxicity [chronic], Ceriodaphnia dubia | 1 | 0 | 0 | ||
| Toxicity [chronic], 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MO0130371.
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 MO0130371 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.