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Clean Water Act discharge permit · NPDES COG501847

COYOTE RIDGE, Fremont County, CO: NPDES COG501847 discharge permit, effluent exceedances, inspections, penalties

COYOTE RIDGE, held by Martin Marietta Materials Inc, holds NPDES permit COG501847, which discharges to Unnamed Tributary - Newlin Gulch. EPA’s file records it issued May 1, 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 COYOTE RIDGE: its NPDES ID, its permit type and status, its dates, its address in Fremont County, Colorado, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COG501847.

Identity

Facility as filedCOYOTE RIDGE
Permittee as filedMartin Marietta Materials Inc
NPDES IDCOG501847
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMay 1, 2017
Expiration dateDecember 31, 2021
AddressFremont County, CO
Receiving waterunnamed tributary - Newlin Gulch
SubwatershedBrush Hollow Creek-Arkansas River (HUC 110200020408)
SIC1442 – Construction Sand And Gravel

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

EPA’s limits and effluent violation files hold no pollutant row for NPDES COG501847.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES COG501847.

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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How we handle your data → Privacy

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 COG501847 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

The COYOTE RIDGE permit, NPDES ID COG501847, is one of 67 general permit coverages on the register in Fremont County, and it sits among the 7 NPDES permits in the Brush Hollow Creek-Arkansas River subwatershed, this one included. Of the 66 general permit coverages in Fremont County that include this one, 30.3% were issued earlier than this permit, while the permit records no pollutants under a numeric limit and no effluent exceedances.