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Clean Water Act discharge permit · NPDES COR428800

MCCLAVE PK-12 SCHOOL, Mcclave, CO: NPDES COR428800 discharge permit, effluent exceedances, inspections, penalties

MCCLAVE PK-12 SCHOOL, held by Nunn Construction, holds NPDES permit COR428800. EPA’s file records it issued October 8, 2025 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 MCCLAVE PK-12 SCHOOL: its NPDES ID, its permit type and status, its dates, its address in Mcclave, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR428800.

Identity

Facility as filedMCCLAVE PK-12 SCHOOL
Permittee as filedNunn Construction
NPDES IDCOR428800
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedOctober 8, 2025
Expiration dateMarch 31, 2029
Issuing agencySTA
AddressMcclave, CO 81057
Subwatershed110200091008 (HUC 110200091008)

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 COR428800.

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 COR428800.

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 COR428800 there.

Nearby on the register

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

What this page shows

The MCCLAVE PK-12 SCHOOL permit is one of 1 general permit coverages on EPA's NPDES register in Mcclave, and it shares the 110200091008 subwatershed with 2 NPDES permits in total, this one included. The permit records no pollutants under a numeric limit and no effluent exceedances, both counted at 0.