Clean Water Act discharge permit · NPDES COG589040
MAYBELL WWTF, Moffat County, CO: NPDES COG589040 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
MAYBELL WWTF, held by Moffat County Improvement District, holds NPDES permit COG589040, which discharges to Unnamed Drainage Ditch. EPA’s file records it issued March 7, 2006 and expiring October 31, 2010. 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 | MAYBELL WWTF |
|---|---|
| Permittee as filed | Moffat County Improvement District |
| NPDES ID | COG589040 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | March 7, 2006 |
| Expiration date | October 31, 2010 |
| Address | Moffat County, CO 81640 |
| Receiving water | UNNAMED DRAINAGE DITCH |
| Subwatershed | Overholt Draw-Yampa River (HUC 140500020503) |
| 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
- 14Pollutants on file
- 11Under a numeric limit
- 14With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, percent removal | 1 | 52 | 26 | February 28, 2013 | 567% over the limit |
| pH | 2 | 82 | 16 | December 31, 2009 | |
| BOD, 5-day, 20 deg. C | 10 | 172 | 9 | February 28, 2013 | 90% over the limit |
| Coliform, fecal general | 4 | 41 | 7 | March 31, 2013 | 249% over the limit |
| Flow, in conduit or thru treatment plant | 8 | 112 | 4 | January 31, 2009 | 924% over the limit |
| Solids, total suspended | 4 | 83 | 1 | April 30, 2010 | 36% over the limit |
| Chlorine, total residual | 2 | 36 | 0 | ||
| Oil and grease | 1 | 26 | 0 | ||
| Oil and grease visual | 1 | 26 | 0 | ||
| Plant capacity fact. percent of capacity | 0 | 26 | 0 | ||
| Solids, total dissolved | 8 | 23 | 0 | ||
| E. coli | 0 | 20 | 0 | ||
| E. coli, thermotol, MF, MTEC | 2 | 10 | 0 | ||
| Nitrogen, ammonia total [as N] | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES COG589040.
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 COG589040 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.