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Clean Water Act discharge permit · NPDES COG315210

PECOS STREET GRADE SEPARATION, Adams County, CO: NPDES COG315210 discharge permit, effluent exceedances, inspections, penalties

PECOS STREET GRADE SEPARATION, held by SEMA Construction Inc, holds NPDES permit COG315210, which discharges to Clear Creek. EPA’s file records it issued January 21, 2010 and expiring October 31, 2010. 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.

Identity

Facility as filedPECOS STREET GRADE SEPARATION
Permittee as filedSEMA Construction Inc
NPDES IDCOG315210
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
IssuedJanuary 21, 2010
Expiration dateOctober 31, 2010
AddressAdams County, CO 80221
Receiving waterClear Creek
SubwatershedOutlet Clear Creek (HUC 101900040404)

Cited to the EPA ICIS-NPDES permit file (ECHO 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
pH4400
Solids, total suspended4400
Cadmium, dissolved [as Cd]4400
Lead, dissolved [as Pb]4400
Lead, total recoverable4400
Toluene4400
Benzene4400
Anthracene4400
Benzo[b]fluoranthene4400
Benzo[k]fluoranthene4400
Benzo[a]pyrene4400
Chrysene4400
Ethylbenzene4400
Indeno[1,2,3-cd]pyrene4400
Tetrachloroethylene4400
1,1-Dichloroethylene4400
Benzo[ghi]perylene4400
Benzo[a]anthracene4400
Dibenz[a,h]anthracene4400
Naphthalene4400
Ethylbenzene4400
Pentachlorophenol4400
Vinyl chloride4400
Trichloroethylene4400
Flow, in conduit or thru treatment plant4400
cis-1,2-Dichloroethylene4400
Xylene [mix of m+o+p]4400
trans-1,2-Dichloroethylene4380
Arsenic, total recoverable2200
Iron, total recoverable2200
Arsenic, dissolved [as As]2200
Iron, dissolved [as Fe]2200
Oil and grease2200
Oil and grease visual2200

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COG315210.

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 COG315210.

Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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, COG315210.

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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 COG315210 there.

Nearby on the register

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