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Clean Water Act discharge permit · NPDES COR431672

ST VRAIN SOLAR FARM, Platteville, CO: NPDES COR431672 discharge permit, effluent exceedances, inspections, penalties

ST VRAIN SOLAR FARM, held by Claystone Construction, Inc., holds NPDES permit COR431672. EPA’s file records it issued September 9, 2026 and expiring March 31, 2029. 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.

What the register holds for ST VRAIN SOLAR FARM: its NPDES ID, its permit type and status, its dates, its address in Platteville, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR431672.

Identity

Facility as filedST VRAIN SOLAR FARM
Permittee as filedClaystone Construction, Inc.
NPDES IDCOR431672
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedSeptember 9, 2026
Expiration dateMarch 31, 2029
Issuing agencySTA
AddressPlatteville, CO 80651

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES COR431672.

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 COR431672.

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 COR431672 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This page is a Velarion Records entry for NPDES permit COR431672, held by Claystone Construction, Inc. for ST VRAIN SOLAR FARM in Platteville, CO, with the permit status shown as Effective and issued September 9, 2026. The register lists zero pollutants on file, zero pollutants under a numeric limit, and zero pollutants with an effluent exceedance for this permit.