Clean Water Act discharge permit · NPDES COG502242
A-1 CHIPSEAL FACILITY, Golden, CO: NPDES COG502242 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 1Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
A-1 CHIPSEAL FACILITY, held by A-1 Chipseal Company, holds NPDES permit COG502242, which discharges to Unnamed Ditch To Rock Creek. EPA’s file records it issued September 15, 2025 and expiring December 31, 2031. 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 | A-1 CHIPSEAL FACILITY |
|---|---|
| Permittee as filed | A-1 Chipseal Company |
| NPDES ID | COG502242 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 15, 2025 |
| Expiration date | December 31, 2031 |
| Address | Golden, CO 80403 |
| Receiving water | unnamed ditch to Rock Creek |
| Subwatershed | Middle Coal Creek (HUC 101900050603) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 1Pollutants on file
- 1Under a numeric limit
- 1With 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 |
|---|---|---|---|---|---|
| Selenium, potentially dissolvd | 4 | 4 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COG502242.
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 COG502242.
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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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 COG502242 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.