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Federal facility (Sewerage Systems), major discharger, Yuma, Arizona. NPDES permit AZ0025348 expired Jun 16, 2026; its limits still apply. Last 12 months: over a limit once (last January 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| January 2026 | Chlorine, total residual, monthly average | 10.35 ug/L | ≤ 9 ug/L | 15% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | WQI |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | WQI |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | all year | WQI |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | WQI |
| pH | minimum | report only (SU) | all year | WQI |
| pH | minimum | report only (SU) | all year | WQI |
| pH | maximum | report only (SU) | all year | WQI |
| pH | maximum | report only (SU) | all year | WQI |
| pH | minimum | report only (SU) | all year | WQI |
| pH | minimum | report only (SU) | all year | WQI |
| pH | maximum | report only (SU) | all year | WQI |
| pH | maximum | report only (SU) | all year | WQI |
| pH | minimum | ≥ 6.5 SU | all year | WQI |
| pH | maximum | ≤ 9 SU | all year | WQI |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | WQI |
| Oil & Grease | daily maximum | report only (mg/L) | all year | WQI |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | WQI |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | WQI |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | WQI |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | WQI |
| Cyanide, total [as CN] | monthly average | ≤ 7.9 ug/L | all year | WQI |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | WQI |
| Cyanide, total [as CN] | daily maximum | ≤ 16 ug/L | all year | WQI |
| Cyanide, total [as CN] | monthly average | ≤ 12 g/d | all year | WQI |
| Cyanide, total [as CN] | daily maximum | ≤ 24 g/d | all year | WQI |
| Sulfide, total [as S] | monthly average | report only (ug/L) | all year | WQI |
| Sulfide, total [as S] | daily maximum | report only (ug/L) | all year | WQI |
| Sulfide, total [as S] | daily maximum | report only (ug/L) | all year | WQI |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | WQI |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | WQI |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | WQI |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | WQI |
| Asbestos | daily maximum | report only (ct/L) | all year | WQI |
| Fluoride, total [as F] | daily maximum | report only (ug/L) | all year | WQI |
| Arsenic, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Selenium, total recoverable | monthly average | ≤ 2 ug/L | all year | WQI |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Selenium, total recoverable | daily maximum | ≤ 3 ug/L | all year | WQI |
| Selenium, total recoverable | monthly average | ≤ 2 g/d | all year | WQI |
| Selenium, total recoverable | daily maximum | ≤ 5 g/d | all year | WQI |
| Thallium, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Beryllium, total recoverable [as Be] | daily maximum | report only (ug/L) | all year | WQI |
| Boron, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Boron, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Boron, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Boron, total recoverable | monthly average | ≤ 1000 ug/L | all year | WQI |
| Boron, total recoverable | daily maximum | ≤ 1350 ug/L | all year | WQI |
| Boron, total recoverable | monthly average | ≤ 1514 g/d | all year | WQI |
| Boron, total recoverable | daily maximum | ≤ 2045 g/d | all year | WQI |
| Barium, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Nickel, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Silver total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Chromium, total recoverable | monthly average | report only (ug/L) | all year | WQI |
| Chromium, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Chromium, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Copper, total recoverable | monthly average | ≤ 19 ug/L | all year | WQI |
| Copper, total recoverable | daily maximum | ≤ 39 ug/L | all year | WQI |
| Copper, total recoverable | monthly average | ≤ 29 g/d | all year | WQI |
| Copper, total recoverable | daily maximum | ≤ 59 g/d | all year | WQI |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (ug/L) | all year | WQI |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | WQI |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | WQI |
| Antimony, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Tributyltin | daily maximum | report only (ug/L) | all year | WQI |
| Diquat | daily maximum | report only (ug/L) | all year | WQI |
| Manganese, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Uranium, total as U3O8 | daily maximum | report only (ug/L) | all year | WQI |
| Dinoseb | daily maximum | report only (ug/L) | all year | WQI |
| Dichlorobromomethane | daily maximum | report only (ug/L) | all year | WQI |
| Carbon tetrachloride | daily maximum | report only (ug/L) | all year | WQI |
| 1,2-Dichloroethane | daily maximum | report only (ug/L) | all year | WQI |
| Bromoform | daily maximum | report only (ug/L) | all year | WQI |
| Dibromochloromethane | daily maximum | report only (ug/L) | all year | WQI |
| Chloroform | daily maximum | report only (ug/L) | all year | WQI |
| Toluene | daily maximum | report only (ug/L) | all year | WQI |
| Benzene | daily maximum | report only (ug/L) | all year | WQI |
| .delta.-BHC | daily maximum | report only (ug/L) | all year | WQI |
| Acrolein | daily maximum | report only (ug/L) | all year | WQI |
| Acrylonitrile | daily maximum | report only (ug/L) | all year | WQI |
| Chlorobenzene | daily maximum | report only (ug/L) | all year | WQI |
| Endosulfan sulfate | daily maximum | report only (ug/L) | all year | WQI |
| Endrin aldehyde | daily maximum | report only (ug/L) | all year | WQI |
| Ethylbenzene | daily maximum | report only (ug/L) | all year | WQI |
| Methyl bromide [Bromomethane] | daily maximum | report only (ug/L) | all year | WQI |
| Methyl chloride [Chloromethane] | daily maximum | report only (ug/L) | all year | WQI |
| Methylene chloride | daily maximum | report only (ug/L) | all year | WQI |
| Tetrachloroethylene | daily maximum | report only (ug/L) | all year | WQI |
| 1,1-Dichloroethane | daily maximum | report only (ug/L) | all year | WQI |
| 1,1-Dichloroethylene | daily maximum | report only (ug/L) | all year | WQI |
| 1,1,1-Trichloroethane | daily maximum | report only (ug/L) | all year | WQI |
| 1,1,2-Trichloroethane | daily maximum | report only (ug/L) | all year | WQI |
| 1,1,2,2-Tetrachloroethane | daily maximum | report only (ug/L) | all year | WQI |
| 1,2-Dichloropropane | daily maximum | report only (ug/L) | all year | WQI |
| trans-1,2-Dichloroethylene | daily maximum | report only (ug/L) | all year | WQI |
| 2-Chloroethyl vinyl ether, [mixed] | daily maximum | report only (ug/L) | all year | WQI |
| 2,3,7,8-Tetrachlorodibenzo-p-dioxin | daily maximum | report only (ug/L) | all year | WQI |
| Dalapon | daily maximum | report only (ug/L) | all year | WQI |
| Oxamyl | daily maximum | report only (ug/L) | all year | WQI |
| Atrazine | daily maximum | report only (ug/L) | all year | WQI |
| Simazine | daily maximum | report only (ug/L) | all year | WQI |
| Vinyl chloride | daily maximum | report only (ug/L) | all year | WQI |
| Trichloroethylene | daily maximum | report only (ug/L) | all year | WQI |
| 4,4'-DDT | daily maximum | report only (ug/L) | all year | WQI |
| 4,4'-DDD | daily maximum | report only (ug/L) | all year | WQI |
| 4,4'-DDE | daily maximum | report only (ug/L) | all year | WQI |
| Aldrin | daily maximum | report only (ug/L) | all year | WQI |
| .alpha.-BHC | daily maximum | report only (ug/L) | all year | WQI |
| .beta.-BHC | daily maximum | report only (ug/L) | all year | WQI |
| .gamma.-BHC | daily maximum | report only (ug/L) | all year | WQI |
| Chlordane [tech mix. and metabolites] | daily maximum | report only (ug/L) | all year | WQI |
| Dieldrin | daily maximum | report only (ug/L) | all year | WQI |
| Endosulfan, total | daily maximum | report only (ug/L) | all year | WQI |
| Endrin | daily maximum | report only (ug/L) | all year | WQI |
| Toxaphene | daily maximum | report only (ug/L) | all year | WQI |
| Heptachlor | daily maximum | report only (ug/L) | all year | WQI |
| Heptachlor epoxide | daily maximum | report only (ug/L) | all year | WQI |
| Methoxychlor | daily maximum | report only (ug/L) | all year | WQI |
| Polychlorinated biphenyls [PCBs] | daily maximum | report only (ug/L) | all year | WQI |
| Malathion | daily maximum | report only (ug/L) | all year | WQI |
| Parathion | daily maximum | report only (ug/L) | all year | WQI |
| Guthion | daily maximum | report only (ug/L) | all year | WQI |
| Picloram | daily maximum | report only (ug/L) | all year | WQI |
| 2,4-Dichlorophenoxyacetic acid | daily maximum | report only (ug/L) | all year | WQI |
| Mirex | daily maximum | report only (ug/L) | all year | WQI |
| 1,2-Dibromo-3-chloropropane | daily maximum | report only (ug/L) | all year | WQI |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | WQI |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | WQI |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | WQI |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | WQI |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | WQI |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | WQI |
| Chlorine, total residual | monthly average | ≤ 9 ug/L | all year | WQI |
| Chlorine, total residual | daily maximum | ≤ 18 ug/L | all year | WQI |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year | WQI |
| Chlorine, total residual | monthly average | ≤ 14 g/d | all year | WQI |
| Chlorine, total residual | daily maximum | ≤ 27 g/d | all year | WQI |
| E. coli, colony forming units [CFU] | daily maximum | report only (CFU/100mL) | all year | WQI |
| Di[2-ethylhexyl] adipate | daily maximum | report only (ug/L) | all year | WQI |
| Endothall | daily maximum | report only (ug/L) | all year | WQI |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | WQI |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | WQI |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | WQI |
| Hydrogen sulfide | monthly average | report only (ug/L) | all year | WQI |
| Hydrogen sulfide | daily maximum | report only (ug/L) | all year | WQI |
| Hydrogen sulfide | daily maximum | report only (ug/L) | all year | WQI |
| Mercury, total recoverable | monthly average | ≤ .008 ug/L | all year | WQI |
| Mercury, total recoverable | daily maximum | ≤ .02 ug/L | all year | WQI |
| Mercury, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Mercury, total recoverable | monthly average | ≤ .01 g/d | all year | WQI |
| Mercury, total recoverable | daily maximum | ≤ .02 g/d | all year | WQI |
| cis-1,2-Dichloroethylene | daily maximum | report only (ug/L) | all year | WQI |
| 1,3-Dichloropropene | daily maximum | report only (ug/L) | all year | WQI |
| Ethylene dibromide | daily maximum | report only (ug/L) | all year | WQI |
| Alachlor | daily maximum | report only (ug/L) | all year | WQI |
| 2,4,5-TP | daily maximum | report only (ug/L) | all year | WQI |
| Glyphosate, total | daily maximum | report only (ug/L) | all year | WQI |
| Chlorpyrifos | daily maximum | report only (ug/L) | all year | WQI |
| Carbofuran | daily maximum | report only (ug/L) | all year | WQI |
| Xylene [mix of m+o+p] | daily maximum | report only (ug/L) | all year | WQI |
| Styrene | daily maximum | report only (ug/L) | all year | WQI |
| Trihalomethane, tot. | daily maximum | report only (ug/L) | all year | WQI |
| Paraquat | daily maximum | report only (ug/L) | all year | WQI |
| Permethrin, total recoverable | daily maximum | report only (ug/L) | all year | WQI |
| Chloroethane | daily maximum | report only (ug/L) | all year | WQI |
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | daily maximum | report only (tox chronic) | all year | WQI |
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | daily maximum | report only (tox chronic) | all year | WQI |
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | monthly median | ≤ 1 tox chronic | all year | WQI |
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | daily maximum | ≤ 1.6 tox chronic | all year | WQI |
| Static 7Day Chronic Pimephales Promelas | daily maximum | report only (tox chronic) | all year | WQI |
| Static 7Day Chronic Pimephales Promelas | monthly median | ≤ 1 tox chronic | all year | WQI |
| Static 7Day Chronic Pimephales Promelas | daily maximum | ≤ 1.6 tox chronic | all year | WQI |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | daily maximum | report only (tox chronic) | all year | WQI |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | daily maximum | report only (tox chronic) | all year | WQI |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | monthly median | ≤ 1 tox chronic | all year | WQI |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | daily maximum | ≤ 1.6 tox chronic | all year | WQI |
| TU Static Renewal 7-Day Chronic Pimphales promelas | daily maximum | report only (tox chronic) | all year | WQI |
| pH | minimum | report only (SU) | all year | YDP |
| pH | minimum | report only (SU) | all year | YDP |
| pH | maximum | report only (SU) | all year | YDP |
| pH | maximum | report only (SU) | all year | YDP |
| pH | minimum | report only (SU) | all year | YDP |
| pH | maximum | report only (SU) | all year | YDP |
| pH | minimum | ≥ 6.5 SU | all year | YDP |
| pH | maximum | ≤ 9 SU | all year | YDP |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | YDP |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | YDP |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | YDP |
| Cyanide, total [as CN] | monthly average | ≤ 7.9 ug/L | all year | YDP |
| Cyanide, total [as CN] | daily maximum | ≤ 16 ug/L | all year | YDP |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | YDP |
| Cyanide, total [as CN] | monthly average | ≤ 680 g/d | all year | YDP |
| Cyanide, total [as CN] | daily maximum | ≤ 1400 g/d | all year | YDP |
| Sulfide, total [as S] | monthly average | report only (ug/L) | all year | YDP |
| Sulfide, total [as S] | daily maximum | report only (ug/L) | all year | YDP |
| Sulfide, total [as S] | daily maximum | report only (ug/L) | all year | YDP |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | YDP |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | YDP |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | YDP |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | YDP |
| Arsenic, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Selenium, total recoverable | monthly average | ≤ 2 ug/L | all year | YDP |
| Selenium, total recoverable | daily maximum | ≤ 3 ug/L | all year | YDP |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Selenium, total recoverable | monthly average | ≤ 100 g/d | all year | YDP |
| Selenium, total recoverable | daily maximum | ≤ 300 g/d | all year | YDP |
| Thallium, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Beryllium, total recoverable [as Be] | daily maximum | report only (ug/L) | all year | YDP |
| Boron, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Boron, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Boron, total recoverable | monthly average | ≤ 1000 ug/L | all year | YDP |
| Boron, total recoverable | daily maximum | ≤ 1350 ug/L | all year | YDP |
| Boron, total recoverable | monthly average | ≤ 85160 g/d | all year | YDP |
| Boron, total recoverable | daily maximum | ≤ 115000 g/d | all year | YDP |
| Nickel, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Silver total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Chromium, total recoverable | monthly average | report only (ug/L) | all year | YDP |
| Chromium, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Chromium, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Copper, total recoverable | monthly average | ≤ 19 ug/L | all year | YDP |
| Copper, total recoverable | daily maximum | ≤ 39 ug/L | all year | YDP |
| Copper, total recoverable | monthly average | ≤ 1700 g/d | all year | YDP |
| Copper, total recoverable | daily maximum | ≤ 3300 g/d | all year | YDP |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (ug/L) | all year | YDP |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | YDP |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | YDP |
| Antimony, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | YDP |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | YDP |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | YDP |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | YDP |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | YDP |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | YDP |
| Chlorine, total residual | monthly average | ≤ 9 ug/L | all year | YDP |
| Chlorine, total residual | daily maximum | ≤ 18 ug/L | all year | YDP |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year | YDP |
| Chlorine, total residual | monthly average | ≤ 770 g/d | all year | YDP |
| Chlorine, total residual | daily maximum | ≤ 1550 g/d | all year | YDP |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | YDP |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | YDP |
| Hydrogen sulfide | monthly average | report only (ug/L) | all year | YDP |
| Hydrogen sulfide | daily maximum | report only (ug/L) | all year | YDP |
| Hydrogen sulfide | daily maximum | report only (ug/L) | all year | YDP |
| Mercury, total recoverable | monthly average | ≤ .008 ug/L | all year | YDP |
| Mercury, total recoverable | daily maximum | report only (ug/L) | all year | YDP |
| Mercury, total recoverable | daily maximum | ≤ .02 ug/L | all year | YDP |
| Mercury, total recoverable | monthly average | ≤ .7 g/d | all year | YDP |
| Mercury, total recoverable | daily maximum | ≤ 1 g/d | all year | YDP |
Cited limits by parameter: Arizona'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/AZ0025348 · MCP: https://passage-data.com/mcp