Clean Water Act discharge permit · NPDES COG591176

EDGEMONT RANCH METRO DISTRICT WWTF, La Plata County, CO: NPDES COG591176 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
57Pollutants under a numeric limit
1Pollutants with an effluent exceedance

EDGEMONT RANCH METRO DISTRICT WWTF, held by Edgemont Ranch Metropolitan District, holds NPDES permit COG591176, which discharges to Florida River. EPA’s file records it issued November 14, 2022 and expiring May 31, 2027. 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	EDGEMONT RANCH METRO DISTRICT WWTF
Permittee as filed	Edgemont Ranch Metropolitan District
NPDES ID	COG591176
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	November 14, 2022
Expiration date	May 31, 2027
Address	La Plata County, CO 81301
Receiving water	Florida River
Subwatershed	140801040801 (HUC 140801040801)

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

Effluent limits and exceedances

57Pollutants on file
57Under a numeric limit
42With a violation of any kind
1With 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
E. coli	2	1	1	June 30, 2026	99,999% over the limit
Perfluorooctanoic acid (PFOA)	2	6	0
Perfluorobutanoic acid (PFBA)	2	6	0
Perfluorooctanesulfonamide (PFOSA)	2	6	0
Perfluoropentanoic acid (PFPeA)	2	6	0
Perfluorohexanoic acid (PFHxA)	2	6	0
Perfluoroheptanoic acid (PFHpA)	2	6	0
Perfluorononanoic acid (PFNA)	2	6	0
Perfluorodecanoic acid (PFDA)	2	6	0
Perfluoroundecanoic acid (PFUnA)	2	6	0
Perfluorododecanoic acid (PFDoA)	2	6	0
Perfluorotridecanoic acid (PFTrDA)	2	6	0
Perfluorotetradecanoic acid (PFTeDA)	2	6	0
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)	2	6	0
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)	2	6	0
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)	2	6	0
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)	2	6	0
Perfluorobutanesulfonic acid (PFBS)	2	6	0
Perfluorodecanesulfonic acid (PFDS)	2	6	0
Perfluoroheptanesulfonic acid (PFHpS)	2	6	0
Perfluorohexanesulfonic acid (PFHxS)	2	6	0
Perfluorooctanesulfonic acid (PFOS)	2	6	0
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)	2	6	0
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)	2	6	0
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)	2	6	0
Perfluoropentanesulfonic acid (PFPeS)	2	6	0
Perfluorononanesulfonic acid (PFNS)	2	6	0
Hexafluoropropylene oxide dimer acid (HFPO-DA)	2	6	0
Perfluoro-2-methoxypropanoic acid	2	6	0
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)	2	6	0
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)	2	6	0
Perfluorododecanesulfonic acid (PFDoS)	2	6	0
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)	2	6	0
Potassium 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate	2	6	0
Potassium 11-chloroeicosafluoro-3-oxaundecane-1-sulfonate	2	6	0
N-methyl perfluorooctanesulfonamide (NMeFOSA)	2	6	0
N-ethyl perfluorooctanesulfonamide (NEtFOSA)	2	6	0
PFAS Sum	2	6	0
3-Perfluoropropyl propanoic acid (3:3 FTCA)	2	6	0
3-Perfluoroheptyl propanoic acid (7:3 FTCA)	2	6	0
Perfluoro-4-methoxybutanoic acid (PFMBA)	2	6	0
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)	2	6	0
Nitrogen, ammonia total [as N]	24	0	0
Temperature, water deg. centigrade	8	0	0
BOD, 5-day, 20 deg. C	6	0	0
Solids, total suspended	4	0	0
Flow, in conduit or thru treatment plant	4	0	0
Solids, total dissolved	4	0	0
Plant capacity fact. percent of capacity	2	0	0
pH	2	0	0
Chlorine, total residual	2	0	0
Nitrogen, nitrite total [as N]	1	0	0
Nitrogen, inorganic total	1	0	0
Oil and grease	1	0	0
BOD, 5-day, percent removal	1	0	0
Solids, suspended percent removal	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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES COG591176.

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.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, COG591176.

Start the watch

How we handle your data → Privacy

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 COG591176 there.

Nearby on the register

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

The Edgemont Ranch Metro District WWTF page covers NPDES permit COG591176, an effective minor discharger permit issued November 14, 2022 and expiring May 31, 2027, which discharges to the Florida River in subwatershed 140801040801. The page lists 57 pollutants on file, 42 of them under a numeric limit, and 1 with an effluent exceedance.