Clean Water Act discharge permit · NPDES COG591011

SANFORD TOWN OF, Sanford, CO: NPDES COG591011 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
85Pollutants under a numeric limit
7Pollutants with an effluent exceedance

SANFORD TOWN OF, held by Sanford Town of, holds NPDES permit COG591011, which discharges to Sanford Ditch. EPA’s file records it issued June 6, 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	SANFORD TOWN OF
Permittee as filed	Sanford Town of
NPDES ID	COG591011
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	June 6, 2024
Expiration date	December 31, 2028
Address	Sanford, CO 81151
Receiving water	Sanford Ditch
Subwatershed	130100020712 (HUC 130100020712)

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

Effluent limits and exceedances

85Pollutants on file
85Under a numeric limit
9With 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 85 are shown.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Arsenic, total recoverable	3	20	19	July 31, 2026	40,900% over the limit
Nitrogen, ammonia total [as N]	24	10	10	June 30, 2026	42% over the limit
Sulfide-hydrogen sulfide [undissociated]	2	7	6	January 31, 2025	1,624% over the limit
E. coli	2	4	4	October 31, 2025	21% over the limit
BOD, 5-day, percent removal	1	3	3	July 31, 2026	151% over the limit
BOD, 5-day, 20 deg. C	6	2	2	July 31, 2026	90% over the limit
Flow, in conduit or thru treatment plant	4	1	1	September 30, 2024	355% over the limit
Chloride [as Cl]	1	1	0
Sulfate	1	1	0
Plant capacity fact. percent of capacity	2	0	0
pH	2	0	0
Solids, total suspended	2	0	0
Chromium, total recoverable	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
Chromium, trivalent, 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
Chlorine, total residual	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 COG591011.

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.