Clean Water Act discharge permit · NPDES COG591100

STRATTON WWTF, Stratton, CO: NPDES COG591100 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
95Pollutants under a numeric limit
6Pollutants with an effluent exceedance

STRATTON WWTF, held by Stratton Town of, holds NPDES permit COG591100, which discharges to Unnamed Tributray To Spring Creek To Unnamed Lake. EPA’s file records it issued October 25, 2024 and expiring December 31, 2029. 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 filed	STRATTON WWTF
Permittee as filed	Stratton Town of
NPDES ID	COG591100
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	October 25, 2024
Expiration date	December 31, 2029
Address	Stratton, CO 80836
Receiving water	Unnamed tributray to Spring Creek to unnamed lake
Subwatershed	Outlet Spring Creek (HUC 102500030511)

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

Effluent limits and exceedances

95Pollutants on file
95Under a numeric limit
19With 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; the 60 with the most exceedances of 95 are shown.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Nitrogen, ammonia total [as N]	48	6	6	May 31, 2026	113% over the limit
BOD, 5-day, 20 deg. C	6	3	3	June 30, 2026	43% over the limit
BOD, 5-day, percent removal	1	3	3	June 30, 2026	160% over the limit
Solids, total suspended	2	2	2	June 30, 2026	9% over the limit
Chlorine, total residual	4	1	1	December 31, 2025	132% over the limit
E. coli	4	1	1	December 31, 2025	85% over the limit
Mercury, total [as Hg]	2	1	0
Cyanide, total [as CN]	1	1	0
Arsenic, total [as As]	1	1	0
Cadmium, total [as Cd]	1	1	0
Chromium, total [as Cr]	1	1	0
Copper, total [as Cu]	1	1	0
Lead, total [as Pb]	1	1	0
Molybdenum, total [as Mo]	1	1	0
Nickel, total [as Ni]	1	1	0
Silver, total [as Ag]	1	1	0
Zinc, total [as Zn]	1	1	0
Selenium, total [as Se]	1	1	0
Total phenols	1	1	0
Flow, in conduit or thru treatment plant	4	0	0
TU Static Renewal 7-Day Chronic Ceriodaphnia dubia	3	0	0
TU Static Renewal 7-Day Chronic Pimphales promelas	3	0	0
Plant capacity fact. percent of capacity	2	0	0
pH	2	0	0
Nitrogen, inorganic total	2	0	0
Chloride [as Cl]	2	0	0
Chromium, hexavalent dissolved [as Cr]	2	0	0
Zinc, potentially dissolved	2	0	0
Silver, potentially dissolved	2	0	0
Copper, potentially dissolved	2	0	0
Cadmium, potentially dissolvd	2	0	0
Lead, potentially dissolvd	2	0	0
Manganese, potentially dissolvd	2	0	0
Nickel, potentially dissolvd	2	0	0
Selenium, potentially dissolvd	2	0	0
Uranium, potentially dissolvd	2	0	0
Sulfide-hydrogen sulfide [undissociated]	2	0	0
Perfluorooctanoic acid (PFOA)	2	0	0
Perfluorobutanoic acid (PFBA)	2	0	0
Perfluorooctanesulfonamide (PFOSA)	2	0	0
Perfluoropentanoic acid (PFPeA)	2	0	0
Perfluorohexanoic acid (PFHxA)	2	0	0
Perfluoroheptanoic acid (PFHpA)	2	0	0
Perfluorononanoic acid (PFNA)	2	0	0
Perfluorodecanoic acid (PFDA)	2	0	0
Perfluoroundecanoic acid (PFUnA)	2	0	0
Perfluorododecanoic acid (PFDoA)	2	0	0
Perfluorotridecanoic acid (PFTrDA)	2	0	0
Perfluorotetradecanoic acid (PFTeDA)	2	0	0
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)	2	0	0
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)	2	0	0
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)	2	0	0
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)	2	0	0
Perfluorobutanesulfonic acid (PFBS)	2	0	0
Perfluorodecanesulfonic acid (PFDS)	2	0	0
Perfluoroheptanesulfonic acid (PFHpS)	2	0	0
Perfluorohexanesulfonic acid (PFHxS)	2	0	0
Perfluorooctanesulfonic acid (PFOS)	2	0	0
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)	2	0	0
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)	2	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 COG591100.

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 COG591100 there.

Nearby on the register

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

This public-records page covers NPDES permit COG591100 for the STRATTON WWTF in Stratton, CO, held by Stratton Town of and discharging to an unnamed tributary to Spring Creek. The page lists 95 pollutants on file, 95 under a numeric limit, 19 with a violation of any kind, and 6 with an effluent exceedance.