Clean Water Act discharge permit · NPDES CO0020443

CRESTED BUTTE TOWN OF WWTF, Crested Butte, CO: NPDES CO0020443 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
16Pollutants under a numeric limit
6Pollutants with an effluent exceedance

CRESTED BUTTE TOWN OF WWTF, held by Crested Butte Town of, holds NPDES permit CO0020443, which discharges to Slate River. EPA’s file records it issued January 15, 2013 and expiring February 28, 2018. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	CRESTED BUTTE TOWN OF WWTF
Permittee as filed	Crested Butte Town of
NPDES ID	CO0020443
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	January 15, 2013
Expiration date	February 28, 2018
Address	Crested Butte, CO 81224
Receiving water	Slate River
Subwatershed	Washington Gulch-Slate River (HUC 140200010206)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

20Pollutants on file
16Under a numeric limit
12With a violation of any kind
6With 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	13	7	February 28, 2014
Coliform, fecal general	0	6	6	July 31, 2004	413% over the limit
Nitrogen, ammonia total [as N]	24	2	2	September 30, 2014	33% over the limit
Solids, total suspended	4	1	1	March 31, 2009	3% over the limit
Flow, in conduit or thru treatment plant	4	1	1	May 31, 2008	13% over the limit
Solids, suspended percent removal	1	1	1	April 30, 2013	13% over the limit
Depth to water level ft below landsurface	0	6	0
Solids, total dissolved	2	5	0
Nitrogen, nitrate total [as N]	0	3	0
Coliform, total general	0	3	0
Zinc, potentially dissolved	2	2	0
Cadmium, potentially dissolvd	2	2	0
BOD, 5-day, 20 deg. C	6	0	0
Temperature, water deg. centigrade	2	0	0
Plant capacity fact. percent of capacity	2	0	0
Chlorine, total residual	2	0	0
E. coli	2	0	0
Oil and grease	1	0	0
BOD, 5-day, percent removal	1	0	0
Oil and grease visual	1	0	0

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 CO0020443.

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, CO0020443.

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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 CO0020443 there.

Nearby on the register

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