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Air, Water, & Solid Waste Management, major discharger, Denver, Colorado. NPDES permit COS000001 expired Mar 31, 2026; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Dec | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Dec | 001 |
| Conductivity | daily maximum | report only (dS/m) | Dec | 001 |
| Conductivity | daily maximum | report only (dS/m) | Dec | 001 |
| pH | daily maximum | report only (SU) | Dec | 001 |
| pH | daily maximum | report only (SU) | Dec | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 001 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | Dec | 001 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | Dec | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Dec | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Dec | 001 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Dec | 001 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Dec | 001 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Dec | 001 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Dec | 001 |
| Iron, total recoverable | daily maximum | report only (ug/L) | Dec | 001 |
| Iron, total recoverable | daily maximum | report only (ug/L) | Dec | 001 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | Dec | 001 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | Dec | 001 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Dec | 001 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Dec | 001 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Dec | 001 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Dec | 001 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Dec | 001 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Dec | 001 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Dec | 001 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Dec | 001 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Dec | 001 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Dec | 001 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | Dec | 001 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | Dec | 001 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Dec | 001 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Dec | 001 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | Dec | 001 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | Dec | 001 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 001 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 001 |
| Iron, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 001 |
| Iron, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 001 |
| Lead, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 001 |
| Lead, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 001 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 001 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 001 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 001 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 001 |
| Oil and grease | daily maximum | report only (mg/L) | Dec | 001 |
| Oil and grease | daily maximum | report only (mg/L) | Dec | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 001 |
| E. coli | daily maximum | report only (#/100mL) | Dec | 001 |
| E. coli | daily maximum | report only (#/100mL) | Dec | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Dec | 002 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Dec | 002 |
| Conductivity | daily maximum | report only (dS/m) | Dec | 002 |
| Conductivity | daily maximum | report only (dS/m) | Dec | 002 |
| pH | daily maximum | report only (SU) | Dec | 002 |
| pH | daily maximum | report only (SU) | Dec | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 002 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | Dec | 002 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | Dec | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Dec | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Dec | 002 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Dec | 002 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Dec | 002 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Dec | 002 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Dec | 002 |
| Iron, total recoverable | daily maximum | report only (ug/L) | Dec | 002 |
| Iron, total recoverable | daily maximum | report only (ug/L) | Dec | 002 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | Dec | 002 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | Dec | 002 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Dec | 002 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Dec | 002 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Dec | 002 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Dec | 002 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Dec | 002 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Dec | 002 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Dec | 002 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Dec | 002 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Dec | 002 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Dec | 002 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | Dec | 002 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | Dec | 002 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Dec | 002 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Dec | 002 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | Dec | 002 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | Dec | 002 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 002 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 002 |
| Iron, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 002 |
| Iron, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 002 |
| Lead, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 002 |
| Lead, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 002 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 002 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 002 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 002 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 002 |
| Oil and grease | daily maximum | report only (mg/L) | Dec | 002 |
| Oil and grease | daily maximum | report only (mg/L) | Dec | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 002 |
| E. coli | daily maximum | report only (#/100mL) | Dec | 002 |
| E. coli | daily maximum | report only (#/100mL) | Dec | 002 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Dec | 003 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Dec | 003 |
| Conductivity | daily maximum | report only (dS/m) | Dec | 003 |
| Conductivity | daily maximum | report only (dS/m) | Dec | 003 |
| pH | daily maximum | report only (SU) | Dec | 003 |
| pH | daily maximum | report only (SU) | Dec | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 003 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | Dec | 003 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | Dec | 003 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Dec | 003 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Dec | 003 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Dec | 003 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Dec | 003 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Dec | 003 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Dec | 003 |
| Iron, total recoverable | daily maximum | report only (ug/L) | Dec | 003 |
| Iron, total recoverable | daily maximum | report only (ug/L) | Dec | 003 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | Dec | 003 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | Dec | 003 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Dec | 003 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Dec | 003 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Dec | 003 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Dec | 003 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Dec | 003 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Dec | 003 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Dec | 003 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Dec | 003 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Dec | 003 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Dec | 003 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | Dec | 003 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | Dec | 003 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Dec | 003 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Dec | 003 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | Dec | 003 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | Dec | 003 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 003 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 003 |
| Iron, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 003 |
| Iron, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 003 |
| Lead, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 003 |
| Lead, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 003 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 003 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 003 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 003 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 003 |
| Oil and grease | daily maximum | report only (mg/L) | Dec | 003 |
| Oil and grease | daily maximum | report only (mg/L) | Dec | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 003 |
| E. coli | daily maximum | report only (#/100mL) | Dec | 003 |
| E. coli | daily maximum | report only (#/100mL) | Dec | 003 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Dec | 004 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Dec | 004 |
| Conductivity | daily maximum | report only (dS/m) | Dec | 004 |
| Conductivity | daily maximum | report only (dS/m) | Dec | 004 |
| pH | daily maximum | report only (SU) | Dec | 004 |
| pH | daily maximum | report only (SU) | Dec | 004 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 004 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 004 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | Dec | 004 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | Dec | 004 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Dec | 004 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Dec | 004 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Dec | 004 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Dec | 004 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Dec | 004 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Dec | 004 |
| Iron, total recoverable | daily maximum | report only (ug/L) | Dec | 004 |
| Iron, total recoverable | daily maximum | report only (ug/L) | Dec | 004 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | Dec | 004 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | Dec | 004 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Dec | 004 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Dec | 004 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Dec | 004 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Dec | 004 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Dec | 004 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Dec | 004 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Dec | 004 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Dec | 004 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Dec | 004 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Dec | 004 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | Dec | 004 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | Dec | 004 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Dec | 004 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Dec | 004 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | Dec | 004 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | Dec | 004 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 004 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 004 |
| Iron, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 004 |
| Iron, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 004 |
| Lead, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 004 |
| Lead, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 004 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 004 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 004 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 004 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 004 |
| Oil and grease | daily maximum | report only (mg/L) | Dec | 004 |
| Oil and grease | daily maximum | report only (mg/L) | Dec | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 004 |
| E. coli | daily maximum | report only (#/100mL) | Dec | 004 |
| E. coli | daily maximum | report only (#/100mL) | Dec | 004 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Dec | 005 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Dec | 005 |
| Conductivity | daily maximum | report only (dS/m) | Dec | 005 |
| Conductivity | daily maximum | report only (dS/m) | Dec | 005 |
| pH | daily maximum | report only (SU) | Dec | 005 |
| pH | daily maximum | report only (SU) | Dec | 005 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 005 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 005 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | Dec | 005 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | Dec | 005 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Dec | 005 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Dec | 005 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Dec | 005 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Dec | 005 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Dec | 005 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Dec | 005 |
| Iron, total recoverable | daily maximum | report only (ug/L) | Dec | 005 |
| Iron, total recoverable | daily maximum | report only (ug/L) | Dec | 005 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | Dec | 005 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | Dec | 005 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Dec | 005 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Dec | 005 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Dec | 005 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Dec | 005 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Dec | 005 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Dec | 005 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Dec | 005 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Dec | 005 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Dec | 005 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Dec | 005 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | Dec | 005 |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | Dec | 005 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Dec | 005 |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | Dec | 005 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | Dec | 005 |
| Arsenic, potentially dissolved | daily maximum | report only (ug/L) | Dec | 005 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 005 |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 005 |
| Iron, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 005 |
| Iron, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 005 |
| Lead, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 005 |
| Lead, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 005 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 005 |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 005 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 005 |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | Dec | 005 |
| Oil and grease | daily maximum | report only (mg/L) | Dec | 005 |
| Oil and grease | daily maximum | report only (mg/L) | Dec | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Dec | 005 |
| E. coli | daily maximum | report only (#/100mL) | Dec | 005 |
| E. coli | daily maximum | report only (#/100mL) | Dec | 005 |
Cited limits by parameter: Colorado's rules and the federal ones.
Same industry: the 4 Administration of Environmental Quality and Housing Programs permits in Colorado.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/COS000001 · MCP: https://passage-data.com/mcp