Clean Water Act discharge permit · NPDES COG591137

OLNEY SPRINGS WASTEWATER TREATMENT FACILITY, Olney Springs, CO: NPDES COG591137 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
52Pollutants under a numeric limit
0Pollutants with an effluent exceedance

OLNEY SPRINGS WASTEWATER TREATMENT FACILITY, held by Olney Springs Town of, holds NPDES permit COG591137, which discharges to Unnamed Ditch. EPA’s file records it issued July 11, 2024 and expiring December 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.

Identity

Facility as filed	OLNEY SPRINGS WASTEWATER TREATMENT FACILITY
Permittee as filed	Olney Springs Town of
NPDES ID	COG591137
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	July 11, 2024
Expiration date	December 31, 2028
Address	Olney Springs, CO 81062
Receiving water	unnamed ditch
Subwatershed	Smith Hollow-Arkansas River (HUC 110200050701)

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

Effluent limits and exceedances

52Pollutants on file
52Under a numeric limit
11With 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
BOD, 5-day, 20 deg. C	6	24
Flow, in conduit or thru treatment plant	4	16
Plant capacity fact. percent of capacity	2	8
pH	2	8
Solids, total suspended	2	8
Nitrogen, ammonia total [as N]	2	8
E. coli	2	8
Oil and grease	1	4
Chlorine, total residual	1	4
BOD, 5-day, percent removal	1	4
Oil and grease visual	1	4
Perfluorooctanoic acid (PFOA)	2	0
Perfluorobutanoic acid (PFBA)	2	0
Perfluorooctanesulfonamide (PFOSA)	2	0
Perfluoropentanoic acid (PFPeA)	2	0
Perfluorohexanoic acid (PFHxA)	2	0
Perfluoroheptanoic acid (PFHpA)	2	0
Perfluorononanoic acid (PFNA)	2	0
Perfluorodecanoic acid (PFDA)	2	0
Perfluoroundecanoic acid (PFUnA)	2	0
Perfluorododecanoic acid (PFDoA)	2	0
Perfluorotridecanoic acid (PFTrDA)	2	0
Perfluorotetradecanoic acid (PFTeDA)	2	0
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)	2	0
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)	2	0
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)	2	0
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)	2	0
Perfluorobutanesulfonic acid (PFBS)	2	0
Perfluorodecanesulfonic acid (PFDS)	2	0
Perfluoroheptanesulfonic acid (PFHpS)	2	0
Perfluorohexanesulfonic acid (PFHxS)	2	0
Perfluorooctanesulfonic acid (PFOS)	2	0
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)	2	0
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)	2	0
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)	2	0
Perfluoropentanesulfonic acid (PFPeS)	2	0
Perfluorononanesulfonic acid (PFNS)	2	0
Hexafluoropropylene oxide dimer acid (HFPO-DA)	2	0
Perfluoro-2-methoxypropanoic acid	2	0
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)	2	0
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)	2	0
Perfluorododecanesulfonic acid (PFDoS)	2	0
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)	2	0
Potassium 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate	2	0
Potassium 11-chloroeicosafluoro-3-oxaundecane-1-sulfonate	2	0
N-methyl perfluorooctanesulfonamide (NMeFOSA)	2	0
N-ethyl perfluorooctanesulfonamide (NEtFOSA)	2	0
PFAS Sum	2	0
3-Perfluoropropyl propanoic acid (3:3 FTCA)	2	0
3-Perfluoroheptyl propanoic acid (7:3 FTCA)	2	0
Perfluoro-4-methoxybutanoic acid (PFMBA)	2	0
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)	2	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COG591137.

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 COG591137.

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 COG591137 there.

Nearby on the register

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