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Clean Water Act discharge permit · NPDES COG081474

REGION 5 CULVERT REPAIRS - 160A117120BL - MP 117.12 (SHT 54), Bayfield, CO: NPDES COG081474 discharge permit, effluent exceedances, inspections, penalties

REGION 5 CULVERT REPAIRS - 160A117120BL - MP 117.12 (SHT 54), held by Native Sun Construction, holds NPDES permit COG081474, which discharges to Snow Creek - Yellowjacket Creek. EPA’s file records it issued March 25, 2026 and expiring May 31, 2028. 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 REGION 5 CULVERT REPAIRS - 160A117120BL - MP 117.12 (SHT 54): its NPDES ID, its permit type and status, its dates, its address in Bayfield, Colorado, its receiving water, and 8 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COG081474.

Identity

Facility as filedREGION 5 CULVERT REPAIRS - 160A117120BL - MP 117.12 (SHT 54)
Permittee as filedNative Sun Construction
NPDES IDCOG081474
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMarch 25, 2026
Expiration dateMay 31, 2028
AddressBayfield, CO 81122
Receiving waterSnow Creek - Yellowjacket Creek
SubwatershedYellowjacket Creek-Piedra River (HUC 140801020501)

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
pH200
Solids, total suspended200
Flow, in conduit or thru treatment plant200
Solids, total dissolved200
Oil and grease100
Flow, total100
Duration of discharge100
Oil and grease visual100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COG081474.

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 COG081474.

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 COG081474 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit COG081474, held by Native Sun Construction for the REGION 5 CULVERT REPAIRS - 160A117120BL - MP 117.12 (SHT 54) facility in Bayfield, CO, which discharges to Snow Creek - Yellowjacket Creek. The listed figures are 8 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, with the permit recorded as Effective and issued March 25, 2026, expiring May 31, 2028.