Clean Water Act discharge permit · NPDES COG591170
CRESTED BUTTE SOUTH METROPOLITAN DISTRICT WWTF, Crested Butte, CO: NPDES COG591170 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 42Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
CRESTED BUTTE SOUTH METROPOLITAN DISTRICT WWTF, held by Crested Butte South Metro Dist, holds NPDES permit COG591170, which discharges to East River. EPA’s file records it issued July 22, 2022 and expiring May 31, 2027. 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 | CRESTED BUTTE SOUTH METROPOLITAN DISTRICT WWTF |
|---|---|
| Permittee as filed | Crested Butte South Metro Dist |
| NPDES ID | COG591170 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | July 22, 2022 |
| Expiration date | May 31, 2027 |
| Address | Crested Butte, CO 81224 |
| Receiving water | East River |
| Subwatershed | Cheyenne Creek (HUC 110200030301) |
| 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
- 42Pollutants on file
- 42Under a numeric limit
- 27With a violation of any kind
- 1With 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, total suspended | 4 | 1 | 1 | February 28, 2025 | 6% over the limit |
| Perfluorooctanoic acid (PFOA) | 2 | 4 | 0 | ||
| Perfluorobutanoic acid (PFBA) | 2 | 4 | 0 | ||
| Perfluorooctanesulfonamide (PFOSA) | 2 | 4 | 0 | ||
| Perfluoropentanoic acid (PFPeA) | 2 | 4 | 0 | ||
| Perfluorohexanoic acid (PFHxA) | 2 | 4 | 0 | ||
| Perfluoroheptanoic acid (PFHpA) | 2 | 4 | 0 | ||
| Perfluorononanoic acid (PFNA) | 2 | 4 | 0 | ||
| Perfluorodecanoic acid (PFDA) | 2 | 4 | 0 | ||
| Perfluoroundecanoic acid (PFUnA) | 2 | 4 | 0 | ||
| Perfluorododecanoic acid (PFDoA) | 2 | 4 | 0 | ||
| Perfluorotridecanoic acid (PFTrDA) | 2 | 4 | 0 | ||
| Perfluorotetradecanoic acid (PFTeDA) | 2 | 4 | 0 | ||
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | 2 | 4 | 0 | ||
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | 2 | 4 | 0 | ||
| Perfluorobutanesulfonic acid (PFBS) | 2 | 4 | 0 | ||
| Perfluorodecanesulfonic acid (PFDS) | 2 | 4 | 0 | ||
| Perfluoroheptanesulfonic acid (PFHpS) | 2 | 4 | 0 | ||
| Perfluorohexanesulfonic acid (PFHxS) | 2 | 4 | 0 | ||
| Perfluorooctanesulfonic acid (PFOS) | 2 | 4 | 0 | ||
| 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) | 2 | 4 | 0 | ||
| 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) | 2 | 4 | 0 | ||
| 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS) | 2 | 4 | 0 | ||
| Perfluoropentanesulfonic acid (PFPeS) | 2 | 4 | 0 | ||
| Perfluorononanesulfonic acid (PFNS) | 2 | 4 | 0 | ||
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | 2 | 4 | 0 | ||
| PFAS Sum | 2 | 4 | 0 | ||
| Nitrogen, ammonia total [as N] | 48 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 6 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| E. coli | 4 | 0 | 0 | ||
| Solids, total dissolved | 4 | 0 | 0 | ||
| Nitrogen, inorganic total | 3 | 0 | 0 | ||
| Acrylamide | 3 | 0 | 0 | ||
| Plant capacity fact. percent of capacity | 2 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Chlorine, total residual | 2 | 0 | 0 | ||
| Nitrogen, nitrite total [as N] | 1 | 0 | 0 | ||
| Oil and grease | 1 | 0 | 0 | ||
| BOD, 5-day, percent removal | 1 | 0 | 0 | ||
| Solids, suspended percent removal | 1 | 0 | 0 | ||
| Oil and grease visual | 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 COG591170.
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 COG591170 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.