Clean Water Act discharge permit · NPDES COG081467

REGION 5 CULVERT REPAIRS - US 160 MP 64 (SHT 41), Mancos, CO: NPDES COG081467 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
8Pollutants under a numeric limit
0Pollutants with an effluent exceedance

REGION 5 CULVERT REPAIRS - US 160 MP 64 (SHT 41), held by Native Sun Construction, holds NPDES permit COG081467, which discharges to Unnamed Tributary - Cottonwood Creek. EPA’s file records it issued March 20, 2026 and expiring May 31, 2028. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for REGION 5 CULVERT REPAIRS - US 160 MP 64 (SHT 41): its NPDES ID, its permit type and status, its dates, its address in Mancos, 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 COG081467.

Identity

Facility as filed	REGION 5 CULVERT REPAIRS - US 160 MP 64 (SHT 41)
Permittee as filed	Native Sun Construction
NPDES ID	COG081467
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	March 20, 2026
Expiration date	May 31, 2028
Address	Mancos, CO 81328
Receiving water	Unnamed tributary - Cottonwood Creek
Subwatershed	Horsethief Creek-Colorado River (HUC 140100051404)
SIC	1611 – Highway And Street Construction

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

8Pollutants on file
8Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

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 measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
pH	2	0	0
Solids, total suspended	2	0	0
Flow, in conduit or thru treatment plant	2	0	0
Solids, total dissolved	2	0	0
Oil and grease	1	0	0
Flow, total	1	0	0
Duration of discharge	1	0	0
Oil and grease visual	1	0	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COG081467.

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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES COG081467.

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, COG081467.

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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 COG081467 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers Clean Water Act discharge permit NPDES COG081467 for REGION 5 CULVERT REPAIRS - US 160 MP 64 (SHT 41) in Mancos, CO, held by Native Sun Construction and discharging to Unnamed Tributary - Cottonwood Creek. The permit is listed as Effective and as a Minor Discharger class, with 8 pollutants under a numeric limit and 0 pollutants with an effluent exceedance. The permit was issued March 20, 2026 and expires May 31, 2028, per EPA's permit file as loaded October 14, 2026.