Clean Water Act discharge permit · NPDES MO0103322
GREEN CASTLE WWTF, Greencastle, MO: NPDES MO0103322 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
GREEN CASTLE WWTF, held by City of Green Castle, holds NPDES permit MO0103322, which discharges to Tributary To Mussel Fork. EPA’s file records it issued December 22, 2017 and expiring March 31, 2022. 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 | GREEN CASTLE WWTF |
|---|---|
| Permittee as filed | City of Green Castle |
| NPDES ID | MO0103322 |
| 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 | December 22, 2017 |
| Expiration date | March 31, 2022 |
| Address | Greencastle, MO 63544 |
| Receiving water | Tributary to Mussel Fork |
| Subwatershed | Headwaters Mussel Fork (HUC 102802020301) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 12Pollutants on file
- 11Under a numeric limit
- 11With a violation of any kind
- 3With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 2 | 18 | 4 | May 31, 2009 | 21% over the limit |
| pH | 1 | 45 | 2 | December 31, 2014 | |
| Solids, total suspended | 2 | 16 | 2 | May 31, 2009 | 27% over the limit |
| Oil and grease [soxhlet extr.] tot. | 2 | 22 | 0 | ||
| Ammonia [as N] + unionized ammonia | 0 | 18 | 0 | ||
| Nitrogen, ammonia total [as N] | 6 | 14 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 14 | 0 | ||
| BOD, 5-day, percent removal | 1 | 8 | 0 | ||
| Solids, suspended percent removal | 1 | 8 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 1 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 1 | 1 | 0 | ||
| E. coli | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 30, 2021 | 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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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 MO0103322 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.