Clean Water Act discharge permit · NPDES CO0020834
STEAMBOAT SPRINGS WWTF, Steamboat Springs, CO: NPDES CO0020834 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 40Pollutants under a numeric limit
- 12Pollutants with an effluent exceedance
STEAMBOAT SPRINGS WWTF, held by Steamboat Springs City of, holds NPDES permit CO0020834, which discharges to Yampa River. EPA’s file records it issued August 10, 2007 and expiring September 30, 2012. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | STEAMBOAT SPRINGS WWTF |
|---|---|
| Permittee as filed | Steamboat Springs City of |
| NPDES ID | CO0020834 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | August 10, 2007 |
| Expiration date | September 30, 2012 |
| Address | Steamboat Springs, CO 80487 |
| Receiving water | YAMPA RIVER |
| Subwatershed | Cow Creek-Yampa River (HUC 140500010410) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 80Pollutants on file
- 40Under a numeric limit
- 77With a violation of any kind
- 12With 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; the 60 with the most exceedances of 80 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Copper, potentially dissolved | 4 | 33 | 31 | June 30, 2026 | 325% over the limit |
| Solids, suspended percent removal | 0 | 9 | 7 | April 30, 2024 | 167% over the limit |
| BOD, 5-day, percent removal | 0 | 8 | 6 | April 30, 2025 | 100% over the limit |
| Nitrogen, ammonia total [as N] | 97 | 13 | 5 | March 31, 2026 | 141% over the limit |
| Flow, in conduit or thru treatment plant | 7 | 12 | 3 | July 31, 2007 | 12% over the limit |
| Solids, total suspended | 8 | 10 | 2 | March 31, 2023 | 400% over the limit |
| E. coli, thermotol, MF, MTEC | 8 | 5 | 1 | August 31, 2013 | 22% over the limit |
| pH | 6 | 5 | 1 | February 28, 2026 | |
| E. coli | 0 | 5 | 1 | April 30, 2023 | 15% over the limit |
| Mercury, total [as Hg] | 6 | 4 | 1 | September 30, 2007 | 190% over the limit |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 1 | 1 | December 31, 2009 | 50% over the limit |
| Static Renewal 7 Day Chronic Pimephales promelas | 0 | 1 | 1 | March 31, 2019 | 99,999% over the limit |
| Solids, total dissolved | 22 | 68 | 0 | ||
| Nitrogen, nitrate total [as N] | 7 | 37 | 0 | ||
| Coliform, total general | 6 | 32 | 0 | ||
| Water level relative to mean sea level | 7 | 23 | 0 | ||
| Depth to water level ft below landsurface | 0 | 14 | 0 | ||
| BOD, 5-day, 20 deg. C | 10 | 12 | 0 | ||
| Nonylphenol | 0 | 7 | 0 | ||
| Chlorine, total residual | 6 | 6 | 0 | ||
| Plant capacity fact. percent of capacity | 0 | 6 | 0 | ||
| Arsenic, total [as As] | 10 | 4 | 0 | ||
| Chromium, total [as Cr] | 8 | 4 | 0 | ||
| Zinc, potentially dissolved | 8 | 4 | 0 | ||
| Perfluorooctanoic acid (PFOA) | 0 | 4 | 0 | ||
| Perfluorobutanoic acid (PFBA) | 0 | 4 | 0 | ||
| Perfluorooctanesulfonamide (PFOSA) | 0 | 4 | 0 | ||
| Perfluoropentanoic acid (PFPeA) | 0 | 4 | 0 | ||
| Perfluorohexanoic acid (PFHxA) | 0 | 4 | 0 | ||
| Perfluoroheptanoic acid (PFHpA) | 0 | 4 | 0 | ||
| Perfluorononanoic acid (PFNA) | 0 | 4 | 0 | ||
| Perfluorodecanoic acid (PFDA) | 0 | 4 | 0 | ||
| Perfluoroundecanoic acid (PFUnA) | 0 | 4 | 0 | ||
| Perfluorododecanoic acid (PFDoA) | 0 | 4 | 0 | ||
| Perfluorotridecanoic acid (PFTrDA) | 0 | 4 | 0 | ||
| Perfluorotetradecanoic acid (PFTeDA) | 0 | 4 | 0 | ||
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | 0 | 4 | 0 | ||
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | 0 | 4 | 0 | ||
| Perfluorobutanesulfonic acid (PFBS) | 0 | 4 | 0 | ||
| Perfluorodecanesulfonic acid (PFDS) | 0 | 4 | 0 | ||
| Perfluoroheptanesulfonic acid (PFHpS) | 0 | 4 | 0 | ||
| Perfluorohexanesulfonic acid (PFHxS) | 0 | 4 | 0 | ||
| Perfluorooctanesulfonic acid (PFOS) | 0 | 4 | 0 | ||
| 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) | 0 | 4 | 0 | ||
| 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) | 0 | 4 | 0 | ||
| 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS) | 0 | 4 | 0 | ||
| Perfluoropentanesulfonic acid (PFPeS) | 0 | 4 | 0 | ||
| Perfluorononanesulfonic acid (PFNS) | 0 | 4 | 0 | ||
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | 0 | 4 | 0 | ||
| PFAS Sum | 0 | 4 | 0 | ||
| Cyanide, weak acid, dissociable | 8 | 3 | 0 | ||
| Cadmium, potentially dissolvd | 8 | 3 | 0 | ||
| Lead, potentially dissolvd | 8 | 3 | 0 | ||
| Nickel, potentially dissolvd | 8 | 3 | 0 | ||
| Selenium, potentially dissolvd | 8 | 3 | 0 | ||
| Iron, dissolved [as Fe] | 4 | 2 | 0 | ||
| Silver, potentially dissolved | 4 | 2 | 0 | ||
| Manganese, potentially dissolvd | 4 | 2 | 0 | ||
| Temperature, water deg. centigrade | 0 | 2 | 0 | ||
| Chloride [as Cl] | 0 | 2 | 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 |
|---|---|---|
| August 23, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| August 23, 2024 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| August 23, 2024 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| March 5, 2020 | Management Practice Violations - Improper Operation and Maintenance | 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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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.