Clean Water Act discharge permit · NPDES COG501793
COALDALE GYPSUM MINE, Coaldale, CO: NPDES COG501793 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
COALDALE GYPSUM MINE, held by Amrize Cement Inc, holds NPDES permit COG501793, which discharges to Hayden Creek - Arkansas River. EPA’s file records it issued April 24, 2017 and expiring December 31, 2021. 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.
What the register holds for COALDALE GYPSUM MINE: its NPDES ID, its permit type and status, its dates, its address in Coaldale, Colorado, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COG501793.
Identity
| Facility as filed | COALDALE GYPSUM MINE |
|---|---|
| Permittee as filed | Amrize Cement Inc |
| NPDES ID | COG501793 |
| 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 | April 24, 2017 |
| Expiration date | December 31, 2021 |
| Address | Coaldale, CO 81222 |
| Receiving water | Hayden Creek - Arkansas River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Hayden Creek (HUC 110200010905) |
| SIC | 1499 – Miscellaneous Nonmetallic Minerals |
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
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES COG501793.
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 COG501793.
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 COG501793 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.