Clean Water Act discharge permit · NPDES COG591097

BERTHOUD ESTATES WWTF, Berthoud, CO: NPDES COG591097 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
80Pollutants under a numeric limit
7Pollutants with an effluent exceedance

BERTHOUD ESTATES WWTF, held by Berthoud Estates Community Association, holds NPDES permit COG591097, which discharges to See Below. EPA’s file records it issued January 30, 2025 and expiring December 31, 2031. 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	BERTHOUD ESTATES WWTF
Permittee as filed	Berthoud Estates Community Association
NPDES ID	COG591097
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	January 30, 2025
Expiration date	December 31, 2031
Address	Berthoud, CO 80513
Receiving water	see below
Subwatershed	Dry Creek (HUC 101900060501)

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

Effluent limits and exceedances

80Pollutants on file
80Under a numeric limit
7With a violation of any kind
7With 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 80 are shown.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Selenium, potentially dissolvd	2	23	23	July 31, 2026	3,400% over the limit
Sulfate	1	15	15	May 31, 2026	50% over the limit
Manganese, dissolved [as Mn]	1	13	13	July 31, 2026	96% over the limit
Nitrogen, nitrite total [as N]	2	4	4	October 31, 2025	589% over the limit
Zinc, potentially dissolved	5	2	2	June 30, 2025	31,463% over the limit
Nitrogen, ammonia total [as N]	24	1	1	April 30, 2026	128% over the limit
Solids, suspended percent removal	1	1	1	January 31, 2026	42% over the limit
BOD, 5-day, 20 deg. C	6	0	0
Lead, potentially dissolvd	5	0	0
Solids, total suspended	4	0	0
Cadmium, potentially dissolvd	4	0	0
Flow, in conduit or thru treatment plant	4	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
Silver, potentially dissolved	2	0	0
Copper, potentially dissolved	2	0	0
Manganese, potentially dissolvd	2	0	0
Nickel, potentially dissolvd	2	0	0
Uranium, potentially dissolvd	2	0	0
Chlorine, total residual	2	0	0
E. coli	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
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)	2	0	0
Perfluoropentanesulfonic acid (PFPeS)	2	0	0
Perfluorononanesulfonic acid (PFNS)	2	0	0
Hexafluoropropylene oxide dimer acid (HFPO-DA)	2	0	0
Perfluoro-2-methoxypropanoic acid	2	0	0
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)	2	0	0
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)	2	0	0
Perfluorododecanesulfonic acid (PFDoS)	2	0	0
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)	2	0	0
Potassium 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate	2	0	0
Potassium 11-chloroeicosafluoro-3-oxaundecane-1-sulfonate	2	0	0
N-methyl perfluorooctanesulfonamide (NMeFOSA)	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 COG591097.

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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Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES COG591097 for the BERTHOUD ESTATES WWTF in Berthoud, CO, held by Berthoud Estates Community Association, with a Minor Discharger class and Effective status. The page lists 80 pollutants on file, of which 80 are under a numeric limit, and 7 pollutants with an effluent exceedance, with 7 showing a violation of any kind.