NPDES permit AZ0020427 · Major POTW · effective, expires 2031-04-21 · EPA's file as of 2026-09-26
Keep this permit as a site — opens New site at EPA's facility point (35.22477, -111.55495); you set the radius.
Check this month's numbers before you fileSign-ups are not open yet. We counted that someone asked — not who, and not which permit — and we open them once enough people do. The check stays free.
These are the last limits EPA's file holds for this permit, from an earlier version of it (version 5 in EPA's file): its current version carries none yet. Read your permit: a renewal can change them.
Last period with anything received: 2026-03-31.
Reports are due about 30 days after each monitoring period ends (the most common figure among AZ permits in EPA's filings — check your permit).
Each concentration limit against the same limit in comparable permits. Where it appears more than once, its strictest value.
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. centigrade | monthly average | report only | all year |
| 001 | Temperature, water deg. centigrade | daily maximum | report only | all year |
| 001 | Temperature, water deg. centigrade | daily maximum | report only | all year |
| 001 | Oxygen, dissolved [DO] | daily maximum | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | monthly average | <= 30 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | weekly average | <= 45 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | daily maximum | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | monthly average | <= 680 kg/d | all year |
| 001 | BOD, 5-day, 20 deg. C | weekly average | <= 1000 kg/d | all year |
| 001 | pH | minimum | report only | all year |
| 001 | pH | minimum | >= 6.5 SU | all year |
| 001 | pH | maximum | report only | all year |
| 001 | pH | maximum | <= 9 SU | all year |
| 001 | Solids, total suspended | monthly average | <= 30 mg/L | all year |
| 001 | Solids, total suspended | weekly average | <= 45 mg/L | all year |
| 001 | Solids, total suspended | daily maximum | report only | all year |
| 001 | Solids, total suspended | monthly average | <= 680 kg/d | all year |
| 001 | Solids, total suspended | weekly average | <= 1000 kg/d | all year |
| 001 | Oil & Grease | monthly average | report only | all year |
| 001 | Oil & Grease | daily maximum | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | monthly average | <= 1 Ratio | all year |
| 001 | Nitrogen, ammonia total [as N] | daily maximum | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | daily maximum | <= 2 Ratio | all year |
| 001 | Nitrogen, Kjeldahl, total [as N] | daily maximum | report only | all year |
| 001 | Nitrite + Nitrate total [as N] | daily maximum | report only | all year |
| 001 | Phosphorus, total [as P] | daily maximum | report only | all year |
| 001 | Cyanide, total [as CN] | monthly average | <= 7.9 ug/L | all year |
| 001 | Cyanide, total [as CN] | daily maximum | <= 16 ug/L | all year |
| 001 | Cyanide, total [as CN] | daily maximum | report only | all year |
| 001 | Cyanide, total [as CN] | monthly average | <= 180 g/d | all year |
| 001 | Cyanide, total [as CN] | daily maximum | <= 360 g/d | all year |
| 001 | Sulfide, total [as S] | daily maximum | report only | all year |
| 001 | Hardness, total [as CaCO3] | daily maximum | report only | all year |
| 001 | Fluoride, total [as F] | daily maximum | report only | all year |
| 001 | Arsenic, total recoverable | daily maximum | report only | all year |
| 001 | Iron, total recoverable | daily maximum | report only | all year |
| 001 | Iron, total recoverable | daily maximum | report only | all year |
| 001 | Selenium, total recoverable | monthly average | <= 2 ug/L | all year |
| 001 | Selenium, total recoverable | daily maximum | <= 3 ug/L | all year |
| 001 | Selenium, total recoverable | daily maximum | report only | all year |
| 001 | Selenium, total recoverable | monthly average | <= 40 g/d | all year |
| 001 | Selenium, total recoverable | daily maximum | <= 64 g/d | all year |
| 001 | Thallium, total recoverable | daily maximum | report only | all year |
| 001 | Beryllium, total recoverable [as Be] | daily maximum | report only | all year |
| 001 | Boron, total recoverable | daily maximum | report only | all year |
| 001 | Barium, total recoverable | daily maximum | report only | all year |
| 001 | Nickel, total recoverable | daily maximum | report only | all year |
| 001 | Silver total recoverable | daily maximum | report only | all year |
| 001 | Zinc, total recoverable | daily maximum | report only | all year |
| 001 | Cadmium, total recoverable | daily maximum | report only | all year |
| 001 | Lead, total recoverable | daily maximum | report only | all year |
| 001 | Chromium, total recoverable | daily maximum | report only | all year |
| 001 | Copper, total recoverable | monthly average | <= 24 ug/L | all year |
| 001 | Copper, total recoverable | daily maximum | report only | all year |
| 001 | Copper, total recoverable | daily maximum | <= 36 ug/L | all year |
| 001 | Copper, total recoverable | monthly average | <= 550 g/d | all year |
| 001 | Copper, total recoverable | daily maximum | <= 820 g/d | all year |
| 001 | Chromium, hexavalent dissolved [as Cr] | daily maximum | report only | all year |
| 001 | Antimony, total recoverable | daily maximum | report only | all year |
| 001 | 2-Methyl-4,6-dinitrophenol | daily maximum | report only | all year |
| 001 | Tributyltin | daily maximum | report only | all year |
| 001 | Diquat | daily maximum | report only | all year |
| 001 | Manganese, total recoverable | daily maximum | report only | all year |
| 001 | Uranium, total as U3O8 | daily maximum | report only | all year |
| 001 | Dinoseb | daily maximum | report only | all year |
| 001 | Dichlorobromomethane | daily maximum | report only | all year |
| 001 | Carbon tetrachloride | daily maximum | report only | all year |
| 001 | 1,2-Dichloroethane | daily maximum | report only | all year |
| 001 | Bromoform | daily maximum | report only | all year |
| 001 | Dibromochloromethane | daily maximum | report only | all year |
| 001 | Chloroform | daily maximum | report only | all year |
| 001 | Toluene | daily maximum | report only | all year |
| 001 | Benzene | daily maximum | report only | all year |
| 001 | .delta.-BHC | daily maximum | report only | all year |
| 001 | Acenaphthylene | daily maximum | report only | all year |
| 001 | Acenaphthene | daily maximum | report only | all year |
| 001 | Acrolein | daily maximum | report only | all year |
| 001 | Acrylonitrile | daily maximum | report only | all year |
| 001 | Anthracene | daily maximum | report only | all year |
| 001 | Benzo[b]fluoranthene | daily maximum | report only | all year |
| 001 | Benzo[k]fluoranthene | daily maximum | report only | all year |
| 001 | Benzo[a]pyrene | daily maximum | report only | all year |
| 001 | Bis[2-chloroethyl] ether | daily maximum | report only | all year |
| 001 | Bis[2-chloroethoxy]methane | daily maximum | report only | all year |
| 001 | Bis[2-chloroisopropyl] ether | daily maximum | report only | all year |
| 001 | Butyl benzyl phthalate | daily maximum | report only | all year |
| 001 | Chlorobenzene | daily maximum | report only | all year |
| 001 | Chrysene | daily maximum | report only | all year |
| 001 | Diethyl phthalate | daily maximum | report only | all year |
| 001 | Dimethyl phthalate | daily maximum | report only | all year |
| 001 | 1,2-Diphenylhydrazine | daily maximum | report only | all year |
| 001 | Endosulfan sulfate | daily maximum | report only | all year |
| 001 | Endrin aldehyde | daily maximum | report only | all year |
| 001 | Ethylbenzene | daily maximum | report only | all year |
| 001 | Fluoranthene | daily maximum | report only | all year |
| 001 | Fluorene | daily maximum | report only | all year |
| 001 | Hexachlorocyclopentadiene | daily maximum | report only | all year |
| 001 | Hexachlorobutadiene | daily maximum | report only | all year |
| 001 | Hexachloroethane | daily maximum | report only | all year |
| 001 | Indeno[1,2,3-cd]pyrene | daily maximum | report only | all year |
| 001 | Isophorone | daily maximum | report only | all year |
| 001 | Methyl bromide [Bromomethane] | daily maximum | report only | all year |
| 001 | Methyl chloride [Chloromethane] | daily maximum | report only | all year |
| 001 | Methylene chloride | daily maximum | report only | all year |
| 001 | N-Nitrosodi-N-propylamine | daily maximum | report only | all year |
| 001 | N-Nitrosodiphenylamine | daily maximum | report only | all year |
| 001 | N-Nitrosodimethylamine [NDMA] | daily maximum | report only | all year |
| 001 | Nitrobenzene | daily maximum | report only | all year |
| 001 | Phenanthrene | daily maximum | report only | all year |
| 001 | Pyrene | daily maximum | report only | all year |
| 001 | Tetrachloroethylene | daily maximum | report only | all year |
| 001 | 1,1-Dichloroethane | daily maximum | report only | all year |
| 001 | 1,1-Dichloroethylene | daily maximum | report only | all year |
| 001 | 1,1,1-Trichloroethane | daily maximum | report only | all year |
| 001 | 1,1,2-Trichloroethane | daily maximum | report only | all year |
| 001 | 1,1,2,2-Tetrachloroethane | daily maximum | report only | all year |
| 001 | Benzo[ghi]perylene | daily maximum | report only | all year |
| 001 | Benzo[a]anthracene | daily maximum | report only | all year |
| 001 | 1,2-Dichlorobenzene | daily maximum | report only | all year |
| 001 | 1,2-Dichloropropane | daily maximum | report only | all year |
| 001 | trans-1,2-Dichloroethylene | daily maximum | report only | all year |
| 001 | 1,2,4-Trichlorobenzene | daily maximum | report only | all year |
| 001 | Dibenz[a,h]anthracene | daily maximum | report only | all year |
| 001 | 1,3-Dichlorobenzene | daily maximum | report only | all year |
| 001 | 1,4-Dichlorobenzene | daily maximum | report only | all year |
| 001 | 2-Chloroethyl vinyl ether, [mixed] | daily maximum | report only | all year |
| 001 | 2-Chloronaphthalene | daily maximum | report only | all year |
| 001 | 2-Chlorophenol | daily maximum | report only | all year |
| 001 | 2-Nitrophenol | daily maximum | report only | all year |
| 001 | Di-n-octyl phthalate | daily maximum | report only | all year |
| 001 | 2,4-Dichlorophenol | daily maximum | report only | all year |
| 001 | 2,4-Dimethylphenol | daily maximum | report only | all year |
| 001 | 2,4-Dinitrotoluene | daily maximum | report only | all year |
| 001 | 2,4-Dinitrophenol | daily maximum | report only | all year |
| 001 | 2,4,6-Trichlorophenol | daily maximum | report only | all year |
| 001 | 2,6-Dinitrotoluene | daily maximum | report only | all year |
| 001 | 3,3'-Dichlorobenzidine | daily maximum | report only | all year |
| 001 | 4-Bromophenyl phenyl ether | daily maximum | report only | all year |
| 001 | 4-Chlorophenyl phenyl ether | daily maximum | report only | all year |
| 001 | 4-Nitrophenol | daily maximum | report only | all year |
| 001 | 2,3,7,8-Tetrachlorodibenzo-p-dioxin | daily maximum | report only | all year |
| 001 | Phenol | daily maximum | report only | all year |
| 001 | Naphthalene | daily maximum | report only | all year |
| 001 | Dalapon | daily maximum | report only | all year |
| 001 | Oxamyl | daily maximum | report only | all year |
| 001 | Pentachlorophenol | daily maximum | report only | all year |
| 001 | Atrazine | daily maximum | report only | all year |
| 001 | Simazine | daily maximum | report only | all year |
| 001 | Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only | all year |
| 001 | Di-n-butyl phthalate | daily maximum | report only | all year |
| 001 | Benzidine | daily maximum | report only | all year |
| 001 | Vinyl chloride | daily maximum | report only | all year |
| 001 | Trichloroethylene | daily maximum | report only | all year |
| 001 | 4,4'-DDT | daily maximum | report only | all year |
| 001 | 4,4'-DDD | daily maximum | report only | all year |
| 001 | 4,4'-DDE | daily maximum | report only | all year |
| 001 | Aldrin | daily maximum | report only | all year |
| 001 | .alpha.-BHC | daily maximum | report only | all year |
| 001 | .beta.-BHC | daily maximum | report only | all year |
| 001 | .gamma.-BHC | daily maximum | report only | all year |
| 001 | Chlordane [tech mix. and metabolites] | daily maximum | report only | all year |
| 001 | Dieldrin | daily maximum | report only | all year |
| 001 | Endosulfan, total | daily maximum | report only | all year |
| 001 | Endrin | daily maximum | report only | all year |
| 001 | Toxaphene | daily maximum | report only | all year |
| 001 | Heptachlor | daily maximum | report only | all year |
| 001 | Heptachlor epoxide | daily maximum | report only | all year |
| 001 | Methoxychlor | daily maximum | report only | all year |
| 001 | Polychlorinated biphenyls [PCBs] | daily maximum | report only | all year |
| 001 | Malathion | daily maximum | report only | all year |
| 001 | Parathion | daily maximum | report only | all year |
| 001 | Guthion | daily maximum | report only | all year |
| 001 | Hexachlorobenzene | daily maximum | report only | all year |
| 001 | Picloram | daily maximum | report only | all year |
| 001 | 2,4-Dichlorophenoxyacetic acid | daily maximum | report only | all year |
| 001 | Mirex | daily maximum | report only | all year |
| 001 | 1,2-Dibromo-3-chloropropane | daily maximum | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | monthly average | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | daily maximum | report only | all year |
| 001 | Chlorine, total residual | monthly average | <= 9 ug/L | all year |
| 001 | Chlorine, total residual | daily maximum | <= 18 ug/L | all year |
| 001 | Chlorine, total residual | daily maximum | report only | all year |
| 001 | Chlorine, total residual | monthly average | <= 200 g/d | all year |
| 001 | Chlorine, total residual | daily maximum | <= 410 g/d | all year |
| 001 | E. coli, colony forming units [CFU] | monthly average | <= 126 CFU/100mL | all year |
| 001 | E. coli, colony forming units [CFU] | daily maximum | report only | all year |
| 001 | E. coli, colony forming units [CFU] | daily maximum | <= 575 CFU/100mL | all year |
| 001 | Di[2-ethylhexyl] adipate | daily maximum | report only | all year |
| 001 | Endothall | daily maximum | report only | all year |
| 001 | 4-Chloro-3-methylphenol | daily maximum | report only | all year |
| 001 | Solids, total dissolved | monthly average | report only | all year |
| 001 | Solids, total dissolved | daily maximum | report only | all year |
| 001 | Solids, total dissolved | daily maximum | report only | all year |
| 001 | Solids, total dissolved | monthly average | report only | all year |
| 001 | Solids, total dissolved | daily maximum | report only | all year |
| 001 | Hydrogen sulfide | daily maximum | report only | all year |
| 001 | cis-1,2-Dichloroethylene | daily maximum | report only | all year |
| 001 | 1,3-Dichloropropene | daily maximum | report only | all year |
| 001 | Ethylene dibromide | daily maximum | report only | all year |
| 001 | Alachlor | daily maximum | report only | all year |
| 001 | 2,4,5-TP | daily maximum | report only | all year |
| 001 | Glyphosate, total | daily maximum | report only | all year |
| 001 | BOD, 5-day, percent removal | monthly average minimum | >= 85 % | all year |
| 001 | Solids, suspended percent removal | monthly average minimum | >= 85 % | all year |
| 001 | Chlorpyrifos | daily maximum | report only | all year |
| 001 | Carbofuran | daily maximum | report only | all year |
| 001 | Xylene [mix of m+o+p] | daily maximum | report only | all year |
| 001 | Styrene | daily maximum | report only | all year |
| 001 | Trihalomethane, tot. | daily maximum | report only | all year |
| 001 | Paraquat | daily maximum | report only | all year |
| 001 | Permethrin, total recoverable | daily maximum | report only | all year |
| 001 | Chloroethane | daily maximum | report only | all year |
| 001 | TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | monthly median | report only | all year |
| 001 | TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | daily maximum | report only | all year |
| 001 | TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | daily maximum | report only | all year |
| 001 | Static 7Day Chronic Pimephales Promelas | monthly median | report only | all year |
| 001 | Static 7Day Chronic Pimephales Promelas | daily maximum | report only | all year |
| 001 | Static 7Day Chronic Pimephales Promelas | daily maximum | report only | all year |
| 001 | TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | monthly median | report only | all year |
| 001 | TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | daily maximum | report only | all year |
| 001 | TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | daily maximum | report only | all year |
| 005 | Flow, in conduit or thru treatment plant | monthly average | report only | all year |
| 005 | Flow, in conduit or thru treatment plant | daily maximum | report only | all year |
| 005 | Chlorine, total residual | monthly average | <= 9 ug/L | all year |
| 005 | Chlorine, total residual | daily maximum | <= 18 ug/L | all year |
| INF | BOD, 5-day, 20 deg. C | monthly average | report only | all year |
| INF | BOD, 5-day, 20 deg. C | weekly average | report only | all year |
| INF | Solids, total suspended | monthly average | report only | all year |
| INF | Solids, total suspended | weekly average | report only | all year |
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