Clean Water Act discharge permit · NPDES COG591177

ALMA TOWN OF, Alma, CO: NPDES COG591177 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
43Pollutants under a numeric limit
8Pollutants with an effluent exceedance

ALMA TOWN OF, held by Alma Town of, holds NPDES permit COG591177, which discharges to Middle Fork Of South Platte River. EPA’s file records it issued June 28, 2022 and expiring March 31, 2026. 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.

Identity

Facility as filed	ALMA TOWN OF
Permittee as filed	Alma Town of
NPDES ID	COG591177
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	June 28, 2022
Expiration date	March 31, 2026
Address	Alma, CO 80420
Receiving water	Middle Fork of South Platte River
Subwatershed	Headwaters Middle Fork South Platte River (HUC 101900010102)
SIC	4952 – Sewerage Systems

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

43Pollutants on file
43Under a numeric limit
36With a violation of any kind
8With 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
Nitrogen, ammonia total [as N]	24	48	48	July 31, 2026	208% over the limit
Solids, suspended percent removal	1	14	14	March 31, 2026	453% over the limit
Nitrogen, inorganic total	3	10	10	July 31, 2026	26% over the limit
Solids, total suspended	4	8	8	December 31, 2025	203% over the limit
LC50 Static Renewal 96Hr Acute Pimephales promelas	1	6	5	March 31, 2025	81% over the limit
BOD, 5-day, percent removal	1	3	3	July 31, 2026	27% over the limit
LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia	1	3	2	June 30, 2024	36% over the limit
BOD, 5-day, 20 deg. C	6	2	2	July 31, 2026	20% over the limit
Perfluorooctanoic acid (PFOA)	2	2	0
Perfluorobutanoic acid (PFBA)	2	2	0
Perfluorooctanesulfonamide (PFOSA)	2	2	0
Perfluoropentanoic acid (PFPeA)	2	2	0
Perfluorohexanoic acid (PFHxA)	2	2	0
Perfluoroheptanoic acid (PFHpA)	2	2	0
Perfluorononanoic acid (PFNA)	2	2	0
Perfluorodecanoic acid (PFDA)	2	2	0
Perfluoroundecanoic acid (PFUnA)	2	2	0
Perfluorododecanoic acid (PFDoA)	2	2	0
Perfluorotridecanoic acid (PFTrDA)	2	2	0
Perfluorotetradecanoic acid (PFTeDA)	2	2	0
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)	2	2	0
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)	2	2	0
Perfluorobutanesulfonic acid (PFBS)	2	2	0
Perfluorodecanesulfonic acid (PFDS)	2	2	0
Perfluoroheptanesulfonic acid (PFHpS)	2	2	0
Perfluorohexanesulfonic acid (PFHxS)	2	2	0
Perfluorooctanesulfonic acid (PFOS)	2	2	0
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)	2	2	0
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)	2	2	0
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)	2	2	0
Perfluoropentanesulfonic acid (PFPeS)	2	2	0
Perfluorononanesulfonic acid (PFNS)	2	2	0
Hexafluoropropylene oxide dimer acid (HFPO-DA)	2	2	0
PFAS Sum	2	2	0
Arsenic, total recoverable	1	1	0
Oil and grease	1	1	0
Flow, in conduit or thru treatment plant	4	0	0
Plant capacity fact. percent of capacity	2	0	0
pH	2	0	0
Chlorine, total residual	2	0	0
E. coli	2	0	0
Nitrogen, nitrite total [as N]	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

3Single-event violations

Date	What EPA recorded	Agency
July 1, 2024	Monitoring Violations - Failure to Monitor for Toxicity Requirements	ST6
January 1, 2024	Monitoring Violations - Failure to Monitor for Toxicity Requirements	ST6
November 1, 2023	Monitoring Violations - Failure to Monitor for Toxicity Requirements	ST6

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 COG591177 there.

Nearby on the register

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