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Clean Water Act discharge permit · NPDES COR090058

EVANS MS4, Evans, CO: NPDES COR090058 discharge permit, effluent exceedances, inspections, penalties

EVANS MS4, held by Evans City of, holds NPDES permit COR090058, which discharges to Union Ditch. EPA’s file records it issued March 10, 2008 and expiring March 9, 2013. 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 EVANS MS4: its NPDES ID, its permit type and status, its dates, its address in Evans, Colorado, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR090058.

Identity

Facility as filedEVANS MS4
Permittee as filedEvans City of
NPDES IDCOR090058
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
ProgramSmall municipal storm sewer systems
IssuedMarch 10, 2008
Expiration dateMarch 9, 2013
AddressEvans, CO 80634
Receiving waterUnion Ditch
SubwatershedCity of Evans-South Platte River (HUC 101900030606)

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 COR090058.

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 COR090058.

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

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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 COR090058 there.

Nearby on the register

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

What this page shows

The EVANS MS4 permit is one of 6 Storm Water Small MS4s permits in Weld County on EPA's NPDES register, and it sits among 30 NPDES permits in the City of Evans-South Platte River subwatershed. Its record shows 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and 0.0% of the Weld County small MS4 permits carry a violation on file.