Clean Water Act discharge permit · NPDES MO0125482
PCPWSD NO. 2 SUMMER FIELD SUBD WWTP, Rolla, MO: NPDES MO0125482 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
PCPWSD NO. 2 SUMMER FIELD SUBD WWTP, held by Phelps Co. PWSD # 2, holds NPDES permit MO0125482, which discharges to Tributary To Little Dry Fork. EPA’s file records it issued August 18, 2016 and expiring June 30, 2018. 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 | PCPWSD NO. 2 SUMMER FIELD SUBD WWTP |
|---|---|
| Permittee as filed | Phelps Co. PWSD # 2 |
| NPDES ID | MO0125482 |
| 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 18, 2016 |
| Expiration date | June 30, 2018 |
| Address | Rolla, MO 65401 |
| Receiving water | Tributary to Little Dry Fork |
| Receiving water impaired | 303(D) Listed |
| 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
- 11Pollutants on file
- 10Under a numeric limit
- 6With 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 | 8 | 8 | March 31, 2026 | 258% over the limit |
| Chlorine, total residual | 4 | 6 | 6 | June 30, 2026 | 900% over the limit |
| pH | 2 | 2 | 2 | March 31, 2025 | |
| Solids, suspended percent removal | 0 | 2 | 2 | March 31, 2026 | 22% over the limit |
| E. coli | 4 | 1 | 1 | December 31, 2025 | 135% over the limit |
| Oxygen, dissolved [DO] | 4 | 8 | 0 | ||
| BOD, 5-day, 20 deg. C | 3 | 0 | 0 | ||
| Solids, total suspended | 3 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| January 12, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
| December 18, 2020 | Permit Violations - Violation Specified in Comment | ST6 |
| December 18, 2020 | 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.
Watch this permit
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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 MO0125482 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.