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Clean Water Act discharge permit · NPDES COR901657

COWGIRL COMPOST CO, Hayden, CO: NPDES COR901657 discharge permit, effluent exceedances, inspections, penalties

COWGIRL COMPOST CO, held by Sandhill Environmental Services LLC dba See Me Compost, holds NPDES permit COR901657, which discharges to Yampa River. EPA’s file records it issued April 22, 2024 and expiring June 30, 2029. 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 COWGIRL COMPOST CO: its NPDES ID, its permit type and status, its dates, its address in Hayden, Colorado, its receiving water, and 6 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR901657.

Identity

Facility as filedCOWGIRL COMPOST CO
Permittee as filedSandhill Environmental Services LLC dba See Me Compost
NPDES IDCOR901657
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedApril 22, 2024
Expiration dateJune 30, 2029
AddressHayden, CO 81639
Receiving waterYampa River
SubwatershedGoose Creek-Yampa River (HUC 140500011104)
SIC2875 – Fertilizers, Mixing Only

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

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Nitrite + Nitrate total [as N]100
Phosphorus, total [as P]100
Iron, total recoverable100
Zinc, total recoverable100
Lead, potentially dissolvd100
Are You In Compliance100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COR901657.

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 COR901657.

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 COR901657 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit COR901657 for COWGIRL COMPOST CO in Hayden, CO, which discharges to the Yampa River, with status and dates as loaded on October 14, 2026. The register lists 6 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and records the permit as issued April 22, 2024 and expiring June 30, 2029.