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Apartment Building Operators, Denver, Colorado. NPDES permit CO0049006 expired May 31, 2022; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year |
| Solids, total suspended | maximum 7-day average | ≤ 45 mg/L | all year |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | all year |
| Nitrogen, inorganic total | daily maximum | ≤ 10 mg/L | all year |
| Phosphorus, total [as P] | 30-day average | report only (mg/L) | all year |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Chloride [as Cl] | 30-day average | report only (mg/L) | all year |
| Arsenic, total recoverable | 30-day average | ≤ 3 ug/L | all year |
| Iron, total recoverable | 30-day average | ≤ 1157 ug/L | all year |
| Iron, dissolved [as Fe] | 30-day average | ≤ 368 ug/L | all year |
| Manganese, dissolved [as Mn] | 30-day average | ≤ 190 ug/L | all year |
| Manganese, dissolved [as Mn] | daily maximum | ≤ 5025 ug/L | all year |
| Nickel, total recoverable | 30-day average | report only (ug/L) | all year |
| Aluminum, total recoverable | 30-day average | report only (ug/L) | all year |
| Aluminum, total recoverable | 30-day average | ≤ 1864 ug/L | all year |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | all year |
| Aluminum, total recoverable | daily maximum | ≤ 12060 ug/L | all year |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year |
| Molybdenum, total recoverable | 30-day average | report only (ug/L) | all year |
| Chromium, hexavalent dissolved [as Cr] | 30-day average | report only (ug/L) | all year |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year |
| Zinc, potentially dissolved | 30-day average | report only (ug/L) | all year |
| Zinc, potentially dissolved | daily maximum | report only (ug/L) | all year |
| Silver, potentially dissolved | 30-day average | report only (ug/L) | all year |
| Silver, potentially dissolved | daily maximum | report only (ug/L) | all year |
| Copper, potentially dissolved | 30-day average | report only (ug/L) | all year |
| Copper, potentially dissolved | daily maximum | report only (ug/L) | all year |
| Cadmium, potentially dissolvd | 30-day average | report only (ug/L) | all year |
| Cadmium, potentially dissolvd | daily maximum | report only (ug/L) | all year |
| Chromium, trivalent, potentially dissolvd | 30-day average | report only (ug/L) | all year |
| Lead, potentially dissolvd | 30-day average | report only (ug/L) | all year |
| Lead, potentially dissolvd | daily maximum | report only (ug/L) | all year |
| Nickel, potentially dissolvd | 30-day average | report only (ug/L) | all year |
| Nickel, potentially dissolvd | daily maximum | report only (ug/L) | all year |
| Selenium, potentially dissolvd | 30-day average | report only (ug/L) | all year |
| Selenium, potentially dissolvd | 30-day average | ≤ 4.9 ug/L | all year |
| Selenium, potentially dissolvd | daily maximum | report only (ug/L) | all year |
| Selenium, potentially dissolvd | daily maximum | ≤ 21 ug/L | all year |
| Oil and grease | instantaneous maximum | ≤ 10 mg/L | all year |
| Total phenols | 30-day average | report only (ug/L) | all year |
| Total phenols | daily maximum | report only (ug/L) | all year |
| Dichloromethane | 30-day average | report only (ug/L) | all year |
| Tributyltin | 30-day average | report only (ug/L) | all year |
| Tributyltin | daily maximum | report only (ug/L) | all year |
| PCB, total, scan effluent | 30-day average | report only (ug/L) | all year |
| PCB, total, scan effluent | daily maximum | report only (ug/L) | all year |
| Chromium, trivalent total recoverable | daily maximum | report only (ug/L) | all year |
| Uranium, total | 30-day average | report only (ug/L) | all year |
| Uranium, total | 30-day average | ≤ 30 ug/L | all year |
| Benzyl chloride | 30-day average | report only (ug/L) | all year |
| 1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin | 30-day average | report only (ug/L) | all year |
| Carbon tetrachloride | daily maximum | report only (ug/L) | all year |
| 1,2-Dichloroethane | 30-day average | ≤ 2.7 ug/L | all year |
| 1,2-Dichloroethane | daily maximum | ≤ 602103 ug/L | all year |
| Chloroform | 30-day average | ≤ 24 ug/L | all year |
| Chloroform | daily maximum | ≤ 147464 ug/L | all year |
| Benzene | 30-day average | ≤ 9.1 ug/L | all year |
| Acenaphthene | 30-day average | report only (ug/L) | all year |
| Acenaphthene | daily maximum | report only (ug/L) | all year |
| Acrolein | 30-day average | report only (ug/L) | all year |
| Acrolein | daily maximum | report only (ug/L) | all year |
| Acrylonitrile | 30-day average | report only (ug/L) | all year |
| Acrylonitrile | daily maximum | report only (ug/L) | all year |
| Anthracene | 30-day average | report only (ug/L) | all year |
| Benzo[b]fluoranthene | 30-day average | report only (ug/L) | all year |
| Benzo[k]fluoranthene | 30-day average | report only (ug/L) | all year |
| Benzo[a]pyrene | 30-day average | report only (ug/L) | all year |
| Bis[chloromethyl] ether | 30-day average | report only (ug/L) | all year |
| Bis[2-chloroethyl] ether | 30-day average | report only (ug/L) | all year |
| Bis[2-chloroisopropyl] ether | 30-day average | report only (ug/L) | all year |
| Bis[2-chloroisopropyl] ether | daily maximum | report only (ug/L) | all year |
| Butyl benzyl phthalate | 30-day average | ≤ 10.015 ug/L | all year |
| Chlorobenzene | 30-day average | report only (ug/L) | all year |
| Chrysene | 30-day average | report only (ug/L) | all year |
| Diethyl phthalate | 30-day average | report only (ug/L) | all year |
| Dimethyl phthalate | 30-day average | report only (ug/L) | all year |
| 1,2-Diphenylhydrazine | 30-day average | report only (ug/L) | all year |
| 1,2-Diphenylhydrazine | daily maximum | report only (ug/L) | all year |
| Fluoranthene | 30-day average | report only (ug/kg) | all year |
| Fluorene | 30-day average | report only (ug/L) | all year |
| Hexachlorocyclopentadiene | 30-day average | report only (ug/L) | all year |
| Hexachlorocyclopentadiene | daily maximum | report only (ug/L) | all year |
| Hexachlorobutadiene | 30-day average | report only (ug/L) | all year |
| Hexachlorobutadiene | daily maximum | report only (ug/L) | all year |
| Hexachloroethane | 30-day average | report only (ug/L) | all year |
| Hexachloroethane | daily maximum | report only (ug/L) | all year |
| Indeno[1,2,3-cd]pyrene | 30-day average | report only (ug/L) | all year |
| Isophorone | 30-day average | report only (ug/L) | all year |
| Methyl chloride [Chloromethane] | 30-day average | ≤ 40 ug/L | all year |
| N-Nitrosodi-N-propylamine | 30-day average | report only (ug/L) | all year |
| N-Nitrosodiphenylamine | 30-day average | report only (ug/L) | all year |
| N-Nitrosodimethylamine [NDMA] | 30-day average | report only (ug/L) | all year |
| Nitrobenzene | 30-day average | report only (ug/L) | all year |
| Nitrobenzene | daily maximum | report only (ug/L) | all year |
| Pyrene | 30-day average | report only (ug/L) | all year |
| 1,1-Dichloroethylene | 30-day average | report only (ug/L) | all year |
| 1,1,2-Trichloroethane | 30-day average | report only (ug/L) | all year |
| 1,1,2-Trichloroethane | daily maximum | report only (ug/L) | all year |
| 1,1,2,2-Tetrachloroethane | 30-day average | report only (ug/L) | all year |
| Benzo[a]anthracene | 30-day average | report only (ug/L) | all year |
| 1,2-Dichlorobenzene | 30-day average | report only (ug/L) | all year |
| 1,2-Dichloropropane | 30-day average | report only (ug/L) | all year |
| 1,2-Dichloropropane | daily maximum | report only (ug/L) | all year |
| 1,2-trans-Dichloroethylene, dry weight | 30-day average | report only (ug/L) | all year |
| Dibenz[a,h]anthracene | 30-day average | report only (ug/L) | all year |
| 1,3-Dichlorobenzene | 30-day average | report only (ug/L) | all year |
| 1,4-Dichlorobenzene | 30-day average | report only (ug/L) | all year |
| 2-Chlorophenol | 30-day average | report only (ug/L) | all year |
| 2-Chlorophenol | daily maximum | report only (ug/L) | all year |
| 2,4-Dichlorophenol | 30-day average | report only (ug/L) | all year |
| 2,4-Dichlorophenol | daily maximum | report only (ug/L) | all year |
| 2,4-Dimethylphenol | 30-day average | report only (ug/L) | all year |
| 2,4-Dinitrotoluene | 30-day average | report only (ug/L) | all year |
| 2,4-Dinitrophenol | 30-day average | report only (ug/L) | all year |
| 2,4,6-Trichlorophenol | 30-day average | report only (ug/L) | all year |
| 2,6-Dinitrotoluene | 30-day average | report only (ug/L) | all year |
| 2,6-Dinitrotoluene | daily maximum | report only (ug/L) | all year |
| 3,3'-Dichlorobenzidine | 30-day average | report only (ug/L) | all year |
| 4-Nitrophenol | 30-day average | report only (ug/L) | all year |
| Naphthalene | 30-day average | ≤ 1002 ug/L | all year |
| Naphthalene | daily maximum | ≤ 11736 ug/L | all year |
| Pentachlorophenol | 30-day average | report only (ug/L) | all year |
| Pentachlorophenol | daily maximum | report only (ug/L) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | 30-day average | ≤ 8.6 ug/L | all year |
| Di-n-butyl phthalate | 30-day average | ≤ 5008 ug/L | all year |
| Benzidine | 30-day average | report only (ug/L) | all year |
| Benzidine | daily maximum | report only (ug/L) | all year |
| Vinyl chloride | 30-day average | report only (ug/L) | all year |
| Vinyl chloride | 30-day average | ≤ .095 ug/L | all year |
| Trichloroethylene | 30-day average | ≤ 10 ug/L | all year |
| Trichloroethylene | daily maximum | ≤ 10 ug/L | all year |
| Hexachlorobenzene | 30-day average | report only (ug/L) | all year |
| BTEX | daily maximum | report only (ug/L) | all year |
| BTEX | daily maximum | ≤ 100 ug/L | all year |
| N,N-Dimethylaniline | 30-day average | report only (ug/L) | all year |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .02592 MGD | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Mercury, total [low level] | 30-day average | report only (ug/L) | all year |
| Acrylamide | 30-day average | report only (ug/L) | all year |
| E. coli | 30-day geometric mean | report only (#/100mL) | all year |
| E. coli | maximum 7-day geometric mean | report only (#/100mL) | all year |
| Bromodichloromethane | 30-day average | report only (ug/L) | all year |
| Bromodichloromethane | daily maximum | report only (ug/L) | all year |
| Di[2-ethylhexyl] adipate | 30-day average | report only (ug/L) | all year |
| Bromate | 30-day average | report only (ug/L) | all year |
| N-Nitroso-N-Methylethylamine | 30-day average | report only (ug/L) | all year |
| Nonylphenol | 30-day average | report only (ug/L) | all year |
| Nonylphenol | daily maximum | report only (ug/L) | all year |
| Dichloroacetic acid [DCAA] | 30-day average | report only (ug/L) | all year |
| Chloronaphthalene | 30-day average | report only (ug/L) | all year |
| Chloronaphthalene | daily maximum | report only (ug/L) | all year |
| N-Nitrosodiethanolamine | 30-day average | report only (ug/L) | all year |
| 2,4,5-Trichlorophenol | 30-day average | report only (ug/L) | all year |
| Perchlorate [ClO4] | 30-day average | report only (ug/L) | all year |
| 4-Chloro-3-methylphenol | daily maximum | report only (ug/L) | all year |
| 1,2,4-Trichlorobenzene, total | 30-day average | report only (ug/L) | all year |
| 1,2,4-Trichlorobenzene, total | daily maximum | report only (ug/L) | all year |
| 2-Hexanone | 30-day average | report only (ug/L) | all year |
| Aniline | 30-day average | report only (ug/L) | all year |
| Quinoline | 30-day average | report only (ug/L) | all year |
| 1,2,3-Trichloropropane | 30-day average | report only (ug/L) | all year |
| Azobenzene | 30-day average | report only (ug/L) | all year |
| Ethylene dibromide | 30-day average | report only (ug/L) | all year |
| Trichlorotoluene | 30-day average | report only (ug/L) | all year |
| 1,2,4,5-Tetrachlorobenzene | 30-day average | report only (ug/L) | all year |
| Pentachlorobenzene | 30-day average | report only (ug/L) | all year |
| N-Nitrosodiethylamine | 30-day average | report only (ug/L) | all year |
| N-Nitrosopyrrolidine | 30-day average | report only (ug/L) | all year |
| N-Nitrosodibutylamine | 30-day average | report only (ug/L) | all year |
| 1,1,2,2-Tetrachloroethylene | 30-day average | ≤ 36 ug/kg | all year |
| 1,1,2,2-Tetrachloroethylene | daily maximum | ≤ 26942 ug/kg | all year |
| Sulfate | 30-day average | report only (mg/L) | all year |
| Hydrazine | 30-day average | report only (ug/L) | all year |
| Acetone | 30-day average | report only (ug/L) | all year |
| Bromo benzene, total | 30-day average | report only (ug/L) | all year |
| 1,2-cis-Dichloroethylene | 30-day average | report only (ug/L) | all year |
| Epichlorohydrin | 30-day average | report only (ug/L) | all year |
| 2-Butoxyethanol | 30-day average | report only (ug/L) | all year |
| Propylene oxide | 30-day average | report only (ug/L) | all year |
| Styrene | 30-day average | report only (ug/L) | all year |
| Trihalomethane, tot. | 30-day average | report only (ug/L) | all year |
| 1,4-Dioxane | 30-day average | report only (ug/L) | all year |
| Trichloroacetic acid [TCAA] | 30-day average | report only (ug/L) | all year |
| Oil and grease visual | instantaneous maximum | report only (abst=0;prst=1) | all year |
| 1,1,1-Trifluoroethane | 30-day average | report only (ug/L) | all year |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | minimum value | ≥ 100 % | all year |
| LC50 Static Renewal 96Hr Acute Pimephales promelas | minimum value | ≥ 100 % | all year |
Cited limits by parameter: Colorado's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/CO0049006 · MCP: https://passage-data.com/mcp