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Clean Water Act discharge permit · NPDES COR428245

STRONTIA SPRINGS DAM OUTLET WORKS AND HYDROELECTRIC AND CONTROLS UPGRADE PROJECT, Littleton, CO: NPDES COR428245 discharge permit, effluent exceedances, inspections, penalties

STRONTIA SPRINGS DAM OUTLET WORKS AND HYDROELECTRIC AND CONTROLS UPGRADE PROJECT, held by Kiewit Infrastructure Co., holds NPDES permit COR428245. EPA’s file records it issued August 12, 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 STRONTIA SPRINGS DAM OUTLET WORKS AND HYDROELECTRIC AND CONTROLS UPGRADE PROJECT: its NPDES ID, its permit type and status, its dates, its address in Littleton, Colorado. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR428245.

Identity

Facility as filedSTRONTIA SPRINGS DAM OUTLET WORKS AND HYDROELECTRIC AND CONTROLS UPGRADE PROJECT
Permittee as filedKiewit Infrastructure Co.
NPDES IDCOR428245
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedAugust 12, 2025
Expiration dateMarch 31, 2029
AddressLittleton, CO 80125
SubwatershedSouth Platte Canyon (HUC 101900020701)

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 COR428245.

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 COR428245.

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.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, COR428245.

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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 COR428245 there.

Nearby on the register

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

What this page shows

The South Platte Canyon subwatershed contains 2 NPDES permits, including STRONTIA SPRINGS DAM OUTLET WORKS AND HYDROELECTRIC AND CONTROLS UPGRADE PROJECT. That project sits among 289 general permit coverages in Douglas County, where 12.5% have a violation on file. Counting this permit, 68.5% of the 289 Douglas County coverages were issued earlier than it.