Clean Water Act discharge permit · NPDES MO0050652
ROLLA SE WWTP, Rolla, MO: NPDES MO0050652 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 15Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
ROLLA SE WWTP, held by City of Rolla, holds NPDES permit MO0050652, which discharges to Burgher Br.. EPA’s file records it issued August 8, 2018 and expiring June 30, 2023. 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 | ROLLA SE WWTP |
|---|---|
| Permittee as filed | City of Rolla |
| NPDES ID | MO0050652 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | August 8, 2018 |
| Expiration date | June 30, 2023 |
| Address | Rolla, MO 65401 |
| Receiving water | Burgher Br. |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Little Dry Fork-Dry Fork (HUC 071401020108) |
| Program components on file | Biosolids, POTW, Pretreatment |
| 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
- 23Pollutants on file
- 15Under a numeric limit
- 19With 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 |
|---|---|---|---|---|---|
| Cyanide, free [amenable to chlorination] | 2 | 21 | 13 | December 31, 2016 | 180% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 88 | 4 | June 30, 2007 | 153% over the limit |
| Solids, total suspended | 2 | 86 | 2 | September 30, 2007 | 9% over the limit |
| pH | 2 | 17 | 1 | April 30, 2001 | |
| Nitrogen, ammonia total [as N] | 4 | 9 | 1 | April 30, 2006 | 69% over the limit |
| Hardness, total [as CaCO3] | 0 | 92 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 8 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 8 | 0 | ||
| E. coli, colony forming units [CFU] | 0 | 6 | 0 | ||
| E. coli | 2 | 2 | 0 | ||
| Chromium, total [as Cr] | 0 | 2 | 0 | ||
| Copper, total [as Cu] | 0 | 2 | 0 | ||
| Lead, total [as Pb] | 0 | 2 | 0 | ||
| Nickel, total [as Ni] | 0 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 1 | 0 | ||
| BOD, 5-day, percent removal | 1 | 1 | 0 | ||
| Solids, suspended percent removal | 1 | 1 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 0 | 1 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 0 | 1 | 0 | ||
| Nitrogen, total [as N] | 4 | 0 | 0 | ||
| Phosphorus, total [as P] | 4 | 0 | 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
- 5Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 30, 2024 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| May 30, 2024 | Permit Violations - Failure to Submit Timely Permit Renewal Application | ST6 |
| May 30, 2024 | WW Storm Water Construction - Failure to develop any or adequate SWPPP/SWMP | ST6 |
| May 30, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| May 30, 2024 | Effluent Violations - Narrative 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 MO0050652 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.