Clean Water Act discharge permit · NPDES COS000001
DENVER CITY & COUNTY OF, Denver, CO: NPDES COS000001 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
DENVER CITY & COUNTY OF, held by Denver City and County, holds NPDES permit COS000001, which discharges to Sand/Cherry/Bear Creeks/S. Platte R. EPA’s file records it issued January 30, 2009 and expiring February 28, 2014. 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 | DENVER CITY & COUNTY OF |
|---|---|
| Permittee as filed | Denver City and County |
| NPDES ID | COS000001 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Large municipal storm sewer systems |
| Issued | January 30, 2009 |
| Expiration date | February 28, 2014 |
| Address | Denver, CO |
| Receiving water | SAND/CHERRY/BEAR CREEKS/S. PLATTE R |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Cherry Creek-South Platte River (HUC 101900030304) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 26Pollutants on file
- 0Under a numeric limit
- 26With 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 | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Temperature, water deg. centigrade | 0 | 24 | 0 | ||
| Conductivity | 0 | 20 | 0 | ||
| pH | 0 | 20 | 0 | ||
| Solids, total suspended | 0 | 20 | 0 | ||
| Nitrogen, inorganic total | 0 | 20 | 0 | ||
| Phosphorus, total [as P] | 0 | 20 | 0 | ||
| Hardness, total [as CaCO3] | 0 | 20 | 0 | ||
| Chloride [as Cl] | 0 | 20 | 0 | ||
| Iron, total recoverable | 0 | 20 | 0 | ||
| Arsenic, total [as As] | 0 | 20 | 0 | ||
| Manganese, dissolved [as Mn] | 0 | 20 | 0 | ||
| Nickel, total recoverable | 0 | 20 | 0 | ||
| Cadmium, total recoverable | 0 | 20 | 0 | ||
| Lead, total recoverable | 0 | 20 | 0 | ||
| Chromium, total recoverable | 0 | 20 | 0 | ||
| Zinc, potentially dissolved | 0 | 20 | 0 | ||
| Copper, potentially dissolved | 0 | 20 | 0 | ||
| Arsenic, potentially dissolved | 0 | 20 | 0 | ||
| Cadmium, potentially dissolvd | 0 | 20 | 0 | ||
| Iron, potentially dissolvd | 0 | 20 | 0 | ||
| Lead, potentially dissolvd | 0 | 20 | 0 | ||
| Nickel, potentially dissolvd | 0 | 20 | 0 | ||
| Selenium, potentially dissolvd | 0 | 20 | 0 | ||
| Oil and grease | 0 | 20 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 20 | 0 | ||
| E. coli | 0 | 20 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COS000001.
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 COS000001.
Inspections
EPA’s inspection file holds no inspection for NPDES COS000001.
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 COS000001.
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, COS000001.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 COS000001 there.
DENVER CITY & COUNTY OF, Denver, Colorado: Individual permit COS000001, held by Denver City and County; Large municipal storm sewer systems; Administratively continued (past its expiration date and still in force until reissued); issued January 30, 2009, term to February 28, 2014; discharges to SAND/CHERRY/BEAR CREEKS/S. PLATTE R.
- Temperature, water deg. centigrade: 0 limits, 24 violations of any kind, 0 effluent exceedances.
- Conductivity: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- pH: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Nitrogen, inorganic total: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Hardness, total [as CaCO3]: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Chloride [as Cl]: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Iron, total recoverable: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Arsenic, total [as As]: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Manganese, dissolved [as Mn]: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Nickel, total recoverable: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Cadmium, total recoverable: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Lead, total recoverable: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Chromium, total recoverable: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Zinc, potentially dissolved: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Copper, potentially dissolved: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Arsenic, potentially dissolved: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Cadmium, potentially dissolvd: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Iron, potentially dissolvd: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Lead, potentially dissolvd: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Nickel, potentially dissolvd: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Selenium, potentially dissolvd: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Oil and grease: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 0 limits, 20 violations of any kind, 0 effluent exceedances.
- E. coli: 0 limits, 20 violations of any kind, 0 effluent exceedances.
Colorado holds 3 Large municipal storm sewer systems coverages of this permit type in EPA’s file; 1 were issued before COS000001. Denver City and County holds 10 permits in Colorado.
Other permits held by Denver City and County
- COLORADO CONVENTION CTR, Denver County: COG603011, issued September 27, 2007
- WELLINGTON WEBB BUILDING, Denver County: COG603058, issued February 6, 2008
- VAN CISE SIMONET DETENTION CTR, Denver County: COG603153, issued March 16, 2010
- DENVER POLICE DEPARTMENT DISTRICT 4 HEADQUARTERS, Denver County: COG603214, issued February 1, 2013
- DENVER COUNTY JAIL, Denver County: COG603226, issued June 6, 2013
- DENVER CITY AND COUNTY, Denver: COL622015, issued January 1, 2021
- JACKSON GAP RECYCLING CENTER, Denver: COR901150, issued September 4, 2012
- DENVER INTERNATIONAL AIRPORT, Denver County: COS000008, issued September 28, 2009
- BUFFALO BILL MUSEUM AND GRAVE SITE, Jefferson County: COX622015, issued April 3, 2009
Coverages issued nearest COS000001
- December 8, 2006: COLO DEPT OF TRANSPORTATION, Denver, COS000005, held by CDOT
- September 27, 2011: CITY OF COLORADO SPRINGS, Colorado Springs, COS000004, held by Colorado Springs City of
DENVER CITY & COUNTY OF among its neighbors
EPA’s permit file holds 228 discharge permits in the Cherry Creek-South Platte River subwatershed (HUC 101900030304), COS000001 among them. Its county holds 465, 3 of them major permits; COS000001 is a major permit.
Other permits in the Cherry Creek-South Platte River subwatershed (HUC 101900030304)
- 1158 DELAWARE, Denver: COR417163, minor permit, permit term to March 31, 2024
- 1401 WYNKOOP PARKING GARAGE, Denver County: COG603107, minor permit, discharging to Cherry Creek, permit term to December 31, 2012
- 1565 N COLORADO BLVD, Denver: COR428972, minor permit, permit term to March 31, 2029
- 1601 COLORADO APTS, Denver County: COG603087, minor permit, discharging to Storm Sewer, permit term to December 31, 2012
- 1601 WEWATTA, Denver: CO0000008, minor permit, discharging to South Platte River, permit term to September 30, 2018
- 1790 LOGAN STREET AND 1799 PENNSYLVANIA STREET, Denver: COR424249, minor permit, permit term to March 31, 2029
- 1800 LARIMER LLC, Denver County: COG603158, minor permit, discharging to Cherry Creek, permit term to December 31, 2012
- 1900 LAWRENCE, Denver: COG318123, minor permit, discharging to Cherry Creek and South Platte River, permit term to May 31, 2028
- 23041 - CRESTMOOR PARK PROJECT (REPLACEMENT), Denver: COR430963, minor permit, permit term to March 31, 2029
- 299 MILWAUKEE, Denver: COR424747, minor permit, permit term to March 31, 2029
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.