Clean Water Act discharge permit · NPDES CO0035033

U.S. GENERAL SERVICES ADMINISTRATION, Denver, CO: NPDES CO0035033 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
18Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

U.S. GENERAL SERVICES ADMINISTRATION, held by U.S. General Services Administration, holds NPDES permit CO0035033. EPA’s file records it issued July 24, 2018 and expiring August 31, 2023.

U.S. GENERAL SERVICES ADMINISTRATION, Denver, Colorado: Individual permit CO0035033, held by U.S. General Services Administration; Administratively continued (past its expiration date and still in force until reissued); issued July 24, 2018, term to August 31, 2023.

pH: 4 limits, 20 violations of any kind, 0 effluent exceedances.
Flow, total: 4 limits, 20 violations of any kind, 0 effluent exceedances.
Oil & Grease: 2 limits, 17 violations of any kind, 0 effluent exceedances.
Solids, total suspended: 2 limits, 10 violations of any kind, 0 effluent exceedances.
Benzene, ethylbenzene, toluene, xylene combination: 2 limits, 10 violations of any kind, 0 effluent exceedances.
Benzene: 2 limits, 10 violations of any kind, 0 effluent exceedances.
1,1-Dichloroethane: 2 limits, 10 violations of any kind, 0 effluent exceedances.
1,1-Dichloroethylene: 2 limits, 10 violations of any kind, 0 effluent exceedances.
1,1,1-Trichloroethane: 2 limits, 10 violations of any kind, 0 effluent exceedances.
Vinyl chloride: 2 limits, 10 violations of any kind, 0 effluent exceedances.
Trichloroethylene: 2 limits, 10 violations of any kind, 0 effluent exceedances.
cis-1,2-Dichloroethylene: 2 limits, 10 violations of any kind, 0 effluent exceedances.
Oil and grease visual: 2 limits, 10 violations of any kind, 0 effluent exceedances.
Nitrogen, inorganic total: 1 limit, 1 violation of any kind, 0 effluent exceedances.
Phosphorus, total [as P]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
Temperature, water deg. centigrade: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas: 1 limit, 0 violations of any kind, 0 effluent exceedances.

U.S. GENERAL SERVICES ADMINISTRATION among its neighbors

EPA’s permit file holds 192 discharge permits in the 101900020904 subwatershed (HUC 101900020904), CO0035033 among them. Its county holds 465, 3 of them major permits; CO0035033 is a minor permit.

Other permits in the 101900020904 subwatershed (HUC 101900020904)

10 WILDROSE TRAIL, Cherry Hills Village: COR428293, minor permit, permit term to March 31, 2029
10TH AVE. TOWNHOMES, Lakewood: COR424504, minor permit, permit term to March 31, 2029
11TH AVE EXTENSION, Denver: COR424098, minor permit, permit term to March 31, 2029
12000 W CEDAR DR LOT, Jefferson County: COG315165, minor permit, discharging to LAKEWOOD GULCH, permit term to October 31, 2010
1201-1245 QUIVAS STREET DEMOLITION, Denver: COR429597, minor permit, permit term to March 31, 2029
1501 E LAYTON AVE, Cherry Hills Village: COR419390, minor permit, permit term to March 31, 2024
1530 WEST 13TH AVENUE DEMOLITION, Denver: COR429595, minor permit, permit term to March 31, 2029
21556-ALAMEDA BRIDGE OVER S PLATTE RVR, Denver: COR417499, minor permit, permit term to March 31, 2024
23045 - CORY-MERRILL PROJECT 2 (REPLACEMENT - LEAD) - S MILWAUKEE ST AND S SAINT, Denver: COR431696, minor permit, permit term to March 31, 2029
23046 - HARVEY PARK PROJECT 1 (REPLACEMENT) - W JEWELL AVE TO S PATTON CT, Denver: COR431469, minor permit, permit term to March 31, 2029

Identity

Facility as filed	U.S. GENERAL SERVICES ADMINISTRATION
Permittee as filed	U.S. General Services Administration
NPDES ID	CO0035033
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Federal facility
Issued	July 24, 2018
Expiration date	August 31, 2023
Address	Denver, CO 80225
Subwatershed	101900020904 (HUC 101900020904)

Effluent limits and exceedances

18Pollutants on file
18Under a numeric limit
15With a violation of any kind
0With 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
pH	4	20
Flow, total	4	20
Oil & Grease	2	17
Solids, total suspended	2	10
Benzene, ethylbenzene, toluene, xylene combination	2	10
Benzene	2	10
1,1-Dichloroethane	2	10
1,1-Dichloroethylene	2	10
1,1,1-Trichloroethane	2	10
Vinyl chloride	2	10
Trichloroethylene	2	10
cis-1,2-Dichloroethylene	2	10
Oil and grease visual	2	10
Nitrogen, inorganic total	1	1
Phosphorus, total [as P]	1	1
Temperature, water deg. centigrade	1	0
Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia	1	0
Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas	1	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES CO0035033.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES CO0035033.

Inspections

EPA’s inspection file holds no inspection for NPDES CO0035033.

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

EPA’s informal enforcement file holds no action for NPDES CO0035033.

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

This public-records page covers NPDES permit CO0035033, held by U.S. General Services Administration in Denver, CO, which EPA's file records as issued July 24, 2018 and expiring August 31, 2023, and now administratively continued. The page lists 18 pollutants on file, 15 under a numeric limit, and 0 with an effluent exceedance.