Clean Water Act discharge permit · NPDES COG501547
JEFFCO GRAVEL MINE, Jefferson County, CO: NPDES COG501547 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
JEFFCO GRAVEL MINE, held by Bestway Concrete & Aggregates, holds NPDES permit COG501547, which discharges to Walnut Creek. EPA’s file records it issued February 15, 2013 and expiring June 30, 2013. 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 | JEFFCO GRAVEL MINE |
|---|---|
| Permittee as filed | Bestway Concrete & Aggregates |
| NPDES ID | COG501547 |
| 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 | February 15, 2013 |
| Expiration date | June 30, 2013 |
| Address | Jefferson County, CO 80402 |
| Receiving water | Walnut Creek |
| Subwatershed | Upper Big Dry Creek (HUC 101900030406) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 6Pollutants on file
- 6Under a numeric limit
- 6With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| pH | 2 | 8 | 0 | ||
| Solids, total suspended | 2 | 8 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 8 | 0 | ||
| Iron, total recoverable | 2 | 4 | 0 | ||
| Oil and grease | 1 | 4 | 0 | ||
| Oil and grease visual | 1 | 4 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COG501547.
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 COG501547.
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 COG501547 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.