Clean Water Act discharge permit · NPDES CO0037044

FOREST HILLS METROPOLITAN DIST, Golden, CO: NPDES CO0037044 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
10Pollutants under a numeric limit
10Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

FOREST HILLS METROPOLITAN DIST, held by Forest Hills Metro District, holds NPDES permit CO0037044, which discharges to Mount Vernon Creek. EPA’s file records it issued July 23, 2007 and expiring August 31, 2012.

FOREST HILLS METROPOLITAN DIST, Golden, Colorado: Individual permit CO0037044, held by Forest Hills Metro District; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued July 23, 2007, term to August 31, 2012; discharges to MOUNT VERNON CREEK.

Nitrogen, ammonia total [as N]: 24 limits, 37 violations of any kind, 21 effluent exceedances, latest September 30, 2011, largest 1,658% over the limit.
Phosphorus, total [as P]: 6 limits, 76 violations of any kind, 16 effluent exceedances, latest May 31, 2026, largest 1,000% over the limit.
E. coli: 0 limits, 14 violations of any kind, 14 effluent exceedances, latest May 31, 2026, largest 99,999% over the limit.
Chlorine, total residual: 2 limits, 23 violations of any kind, 10 effluent exceedances, latest March 31, 2007, largest 2,900% over the limit.
Nitrogen, inorganic total: 0 limits, 13 violations of any kind, 10 effluent exceedances, latest April 30, 2026, largest 296% over the limit.
Solids, total suspended: 4 limits, 17 violations of any kind, 8 effluent exceedances, latest March 31, 2024, largest 27% over the limit.
Solids, suspended percent removal: 0 limits, 5 violations of any kind, 5 effluent exceedances, latest March 31, 2024, largest 174% over the limit.
E. coli, thermotol, MF, MTEC: 2 limits, 10 violations of any kind, 4 effluent exceedances, latest October 31, 2015, largest 214% over the limit.
BOD, 5-day, percent removal: 0 limits, 3 violations of any kind, 2 effluent exceedances, latest June 30, 2023, largest 53% over the limit.
pH: 2 limits, 7 violations of any kind, 1 effluent exceedance, latest March 31, 2013.
BOD, 5-day, 20 deg. C: 6 limits, 16 violations of any kind, 0 effluent exceedances.
Flow, in conduit or thru treatment plant: 4 limits, 14 violations of any kind, 0 effluent exceedances.
Oil and grease: 1 limit, 3 violations of any kind, 0 effluent exceedances.
Oil and grease visual: 1 limit, 3 violations of any kind, 0 effluent exceedances.
Coliform, fecal general: 0 limits, 2 violations of any kind, 0 effluent exceedances.

July 17, 2026: Letter of Violation/ Warning Letter (State).
June 19, 2026: Letter of Violation/ Warning Letter (State).
May 15, 2026: Letter of Violation/ Warning Letter (State).
January 16, 2026: Letter of Violation/ Warning Letter (State).
January 29, 2025: Monitoring Violations - Analysis not Conducted (ST6).

Colorado holds 206 Publicly owned treatment works coverages of this permit type in EPA’s file; 66 were issued before CO0037044.

Coverages issued nearest CO0037044

April 12, 2007: KERSEY WWTF, Kersey, CO0021954, held by Kersey Town of
April 12, 2007: GRAND MESA WWTF, Mesa, CO0023485, held by Grand Mesa Metro Dist 2
May 14, 2007: EATON WWTP, Weld County, CO0047414, held by Eaton Town of
June 28, 2007: NIWOT SANITATION DISTRICT, Niwot, CO0021695, held by Niwot Sanitation District
June 29, 2007: STEAMBOAT LAKE WATER & SANITATION DIST WWTF, Routt County, CO0035556, held by Steamboat Lake Water and Sanitation Dist
August 10, 2007: STEAMBOAT SPRINGS WWTF, Steamboat Springs, CO0020834, held by Steamboat Springs City of
September 27, 2007: MARCY GULCH WWTF, Highlands Ranch, CO0037966, held by Centennial Water and San Dist
October 31, 2007: WRAY CITY OF WWTF, Wray, CO0023833, held by Wray City of
December 4, 2007: REGIONAL WWTF, Alamosa County, CO0044458, held by Alamosa City of
January 31, 2008: ROBERT W HITE TREATMENT FACILITY, Denver, CO0026638, held by Metro Waste Water Reclamation District

FOREST HILLS METROPOLITAN DIST among its neighbors

EPA’s permit file holds 10 discharge permits in the Mount Vernon Creek-Bear Creek subwatershed (HUC 101900020806), CO0037044 among them. Its county holds 344, 2 of them major permits; CO0037044 is a minor permit.

Other permits in the Mount Vernon Creek-Bear Creek subwatershed (HUC 101900020806)

24417S RESURFACING ITS CHIEF HOSA TO MP 259, Golden: COR423230, minor permit, permit term to March 31, 2029
FOREST HILLS METROPOLITAN DIST, Golden: COL037044, minor permit, permit term to December 31, 2025
GENESEE WATER & SANITATION DST, Jefferson County: COG641069, minor permit, discharging to COLD SPG CREEK(001)BEAR CRK(2&3), permit term to October 31, 2010
GENESEE WSD, Golden: COL022951, minor permit, permit term to December 31, 2025
GENESSE FIRE EMERGENCY ACCESS ROUTE, Golden: COR428345, minor permit, permit term to March 31, 2029
MORRISON QUARRY, Morrison: COG500320, minor permit, discharging to STRAIN GULCH/TURKEY CREEK, permit term to June 30, 2013
MT VERNON COUNTRY CLUB, Golden: COL633001, minor permit, permit term to December 31, 2025
SCHMITZ GUESNO DEVELOPMENT, Golden: COR427200, minor permit, permit term to March 31, 2029
XCEL 9794 TRANSMISSION LINE WILDFIRE MITIGATION PROJECT, Unincorporated: COR428616, minor permit, permit term to March 31, 2029

Identity

Facility as filed	FOREST HILLS METROPOLITAN DIST
Permittee as filed	Forest Hills Metro District
NPDES ID	CO0037044
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	July 23, 2007
Expiration date	August 31, 2012
Address	Golden, CO 80401
Receiving water	MOUNT VERNON CREEK
Receiving water impaired	303(D) Listed
Subwatershed	Mount Vernon Creek-Bear Creek (HUC 101900020806)
SIC	4952 – Sewerage Systems

Effluent limits and exceedances

15Pollutants on file
10Under a numeric limit
15With a violation of any kind
10With 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	37	21	September 30, 2011	1,658% over the limit
Phosphorus, total [as P]	6	76	16	May 31, 2026	1,000% over the limit
E. coli	0	14	14	May 31, 2026	99,999% over the limit
Chlorine, total residual	2	23	10	March 31, 2007	2,900% over the limit
Nitrogen, inorganic total	0	13	10	April 30, 2026	296% over the limit
Solids, total suspended	4	17	8	March 31, 2024	27% over the limit
Solids, suspended percent removal	0	5	5	March 31, 2024	174% over the limit
E. coli, thermotol, MF, MTEC	2	10	4	October 31, 2015	214% over the limit
BOD, 5-day, percent removal	0	3	2	June 30, 2023	53% over the limit
pH	2	7	1	March 31, 2013
BOD, 5-day, 20 deg. C	6	16	0
Flow, in conduit or thru treatment plant	4	14	0
Oil and grease	1	3	0
Oil and grease visual	1	3	0
Coliform, fecal general	0	2	0

Inspections, violations and enforcement

1Single-event violations

Date	What EPA recorded	Agency
January 29, 2025	Monitoring Violations - Analysis not Conducted	ST6

Inspections

EPA’s inspection file holds no inspection for NPDES CO0037044.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

Date	What EPA recorded	Agency
July 17, 2026	Letter of Violation/ Warning Letter	State
June 19, 2026	Letter of Violation/ Warning Letter	State
May 15, 2026	Letter of Violation/ Warning Letter	State
January 16, 2026	Letter of Violation/ Warning Letter	State

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

This public-records page covers Clean Water Act discharge permit NPDES CO0037044, held by Forest Hills Metro District in Golden, CO, which discharges to Mount Vernon Creek and is administratively continued. The figures listed are 10 pollutants under a numeric limit and 10 pollutants with an effluent exceedance, with the permit issued July 23, 2007 and expiring August 31, 2012.