Clean Water Act discharge permit · NPDES MO0115401
CCSD, ROBERTSVILLE WWTF, Robertsville, MO: NPDES MO0115401 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
CCSD, ROBERTSVILLE WWTF, held by Calvey Creek Sewer District, holds NPDES permit MO0115401, which discharges to Meramec River. EPA’s file records it issued August 16, 2017 and expiring August 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 | CCSD, ROBERTSVILLE WWTF |
|---|---|
| Permittee as filed | Calvey Creek Sewer District |
| NPDES ID | MO0115401 |
| 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 16, 2017 |
| Expiration date | August 31, 2022 |
| Address | Robertsville, MO 63072 |
| Receiving water | Meramec River |
| Subwatershed | Calvey Creek-Meramec River (HUC 071401020901) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 14Pollutants on file
- 12Under a numeric limit
- 12With a violation of any kind
- 9With 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, suspended percent removal | 2 | 31 | 29 | May 31, 2026 | 186% over the limit |
| Coliform, fecal general | 0 | 29 | 29 | July 31, 2010 | 9,900% over the limit |
| Chlorine, total residual | 4 | 26 | 22 | May 31, 2026 | 3,967% over the limit |
| E. coli, colony forming units [CFU] | 0 | 19 | 19 | October 31, 2016 | 19,106% over the limit |
| E. coli | 4 | 17 | 13 | May 31, 2026 | 2,797% over the limit |
| BOD, 5-day, percent removal | 2 | 15 | 13 | March 31, 2025 | 186% over the limit |
| Solids, total suspended | 4 | 23 | 9 | October 31, 2025 | 4,329% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 22 | 8 | September 30, 2024 | 767% over the limit |
| pH | 4 | 19 | 7 | November 30, 2025 | |
| Oil and grease [soxhlet extr.] tot. | 4 | 16 | 0 | ||
| Nitrogen, ammonia total [as N] | 4 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 4 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 2 | 0 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 4, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
| December 26, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| July 3, 2019 | Effluent Violations - Numeric effluent violation | ST6 |
| March 21, 2017 | 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 MO0115401 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.