Clean Water Act discharge permit · NPDES COG588086
SW MESA CO RURAL PUB IMP DIST WWTF, Mesa County, CO: NPDES COG588086 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
SW MESA CO RURAL PUB IMP DIST WWTF, held by SW Mesa County Rural Public Improvement District, holds NPDES permit COG588086, which discharges to Dolores River. EPA’s file records it issued July 26, 2005 and expiring May 31, 2010. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | SW MESA CO RURAL PUB IMP DIST WWTF |
|---|---|
| Permittee as filed | SW Mesa County Rural Public Improvement District |
| NPDES ID | COG588086 |
| 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 | July 26, 2005 |
| Expiration date | May 31, 2010 |
| Address | Mesa County, CO 81522 |
| Receiving water | DOLORES RIVER |
| Subwatershed | Lumsden Canyon-Dolores River (HUC 140300040503) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 13Pollutants on file
- 12Under a numeric limit
- 13With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, percent removal | 1 | 18 | 14 | February 28, 2023 | 147% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 54 | 12 | July 31, 2018 | 137% over the limit |
| Flow, in conduit or thru treatment plant | 8 | 34 | 8 | August 31, 2022 | 564% over the limit |
| Solids, total suspended | 4 | 17 | 7 | May 31, 2022 | 116% over the limit |
| E. coli | 2 | 15 | 7 | July 31, 2021 | 142% over the limit |
| Nitrogen, ammonia total [as N] | 6 | 10 | 0 | ||
| Plant capacity fact. percent of capacity | 0 | 10 | 0 | ||
| pH | 4 | 8 | 0 | ||
| Chlorine, total residual | 3 | 5 | 0 | ||
| Oil and grease | 1 | 4 | 0 | ||
| Oil and grease visual | 1 | 4 | 0 | ||
| Solids, total dissolved | 4 | 3 | 0 | ||
| Coliform, fecal general | 2 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 19, 2020 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| May 19, 2020 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| May 19, 2020 | Reporting Violations - Improper/ Incorrect Reporting | 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 COG588086 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.