NPDES permit AZ0020249 · Major POTW · effective, expires 2031-03-24 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-07-31. Most often over: E. coli, colony forming units [CFU] (3), Chlorine, total residual (2).
Reports are due about 28 days after each monitoring period ends (the most common figure among AZ permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. centigrade | MO AVG | report only | all year |
| 001 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 30 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 45 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 136 kg/d | all year |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 204 kg/d | all year |
| 001 | pH | MINIMUM | >= 6.5 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 45 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 136 kg/d | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 204 kg/d | all year |
| 001 | Oil & Grease | MO AVG | report only | all year |
| 001 | Oil & Grease | DAILY MX | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 1 Ratio | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 2 Ratio | all year |
| 001 | Cyanide, total [as CN] | DAILY MX | <= 41 ug/L | all year |
| 001 | Cyanide, total [as CN] | DAILY MX | <= 190 g/d | all year |
| 001 | Sulfide, total [as S] | MO AVG | report only | all year |
| 001 | Sulfide, total [as S] | DAILY MX | report only | all year |
| 001 | Hardness, total [as CaCO3] | MO AVG | report only | all year |
| 001 | Hardness, total [as CaCO3] | DAILY MX | report only | all year |
| 001 | Silver total recoverable | DAILY MX | <= 6.5 ug/L | all year |
| 001 | Silver total recoverable | DAILY MX | <= 30 g/d | all year |
| 001 | Zinc, total recoverable | DAILY MX | <= 160 ug/L | all year |
| 001 | Zinc, total recoverable | DAILY MX | <= 710 g/d | all year |
| 001 | Copper, total recoverable | DAILY MX | <= 24 ug/L | all year |
| 001 | Copper, total recoverable | DAILY MX | <= 110 g/d | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Chlorine, total residual | MO AVG | <= 9 ug/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 18 ug/L | all year |
| 001 | Chlorine, total residual | MO AVG | <= 41 g/d | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 82 g/d | all year |
| 001 | E. coli, colony forming units [CFU] | MO AVG | <= 126 CFU/100mL | all year |
| 001 | E. coli, colony forming units [CFU] | DAILY MX | <= 576 CFU/100mL | all year |
| 001 | Hydrogen sulfide | MO AVG | report only | all year |
| 001 | Hydrogen sulfide | DAILY MX | report only | all year |
| 001 | BOD, 5-day, percent removal | MO AV MN | >= 85 % | all year |
| 001 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
| 001 | Pass/Fail Static 96Hr Acute Ceriodaphnia Dubia | MO MED | report only | all year |
| 001 | Pass/Fail Static 96Hr Acute Ceriodaphnia Dubia | DAILY MX | report only | all year |
| 001 | Pass/Fail Static 96 Hr Acute Pimephales Promelas | MO MED | report only | all year |
| 001 | Pass/Fail Static 96 Hr Acute Pimephales Promelas | DAILY MX | report only | all year |
| 001 | Chronic Mthd Sublethal Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, StatR8dmax C dubia | MO MED | report only | all year |
| 001 | Chronic Mthd Sublethal Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, StatR8dmax C dubia | DAILY MX | report only | all year |
| 001 | Chronic Mthd Sublethal Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, StatR8dmax C dubia | DAILY MX | report only | all year |
| 001 | Chronic Mthd Sublethal Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, StatR7d P promelas | MO MED | report only | all year |
| 001 | Chronic Mthd Sublethal Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, StatR7d P promelas | DAILY MX | report only | all year |
| 001 | Chronic Mthd Sublethal Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, StatR7d P promelas | DAILY MX | report only | all year |
| 01B | Cyanide, total [as CN] | MO AVG | <= 7.9 ug/L | all year |
| 01B | Cyanide, total [as CN] | DAILY MX | <= 16 ug/L | all year |
| 01B | Cyanide, total [as CN] | MO AVG | <= 36 g/d | all year |
| 01B | Cyanide, total [as CN] | DAILY MX | <= 72 g/d | all year |
| 01B | Selenium, total recoverable | MO AVG | <= 2 ug/L | all year |
| 01B | Selenium, total recoverable | DAILY MX | <= 3 ug/L | all year |
| 01B | Selenium, total recoverable | MO AVG | <= 7 g/d | all year |
| 01B | Selenium, total recoverable | DAILY MX | <= 10 g/d | all year |
| 01B | Chromium, total [as Cr] | MO AVG | report only | all year |
| 01B | Chromium, total [as Cr] | DAILY MX | report only | all year |
| 01B | Silver total recoverable | MO AVG | <= 3.2 ug/L | all year |
| 01B | Silver total recoverable | DAILY MX | <= 6.5 ug/L | all year |
| 01B | Silver total recoverable | MO AVG | <= 15 g/d | all year |
| 01B | Silver total recoverable | DAILY MX | <= 30 g/d | all year |
| 01B | Zinc, total recoverable | MO AVG | <= 89 ug/L | all year |
| 01B | Zinc, total recoverable | DAILY MX | <= 160 ug/L | all year |
| 01B | Zinc, total recoverable | MO AVG | <= 410 g/d | all year |
| 01B | Zinc, total recoverable | DAILY MX | <= 710 g/d | all year |
| 01B | Lead, total recoverable | MO AVG | <= 3.9 ug/L | all year |
| 01B | Lead, total recoverable | DAILY MX | <= 7.9 ug/L | all year |
| 01B | Lead, total recoverable | MO AVG | <= 18 g/d | all year |
| 01B | Lead, total recoverable | DAILY MX | <= 36 g/d | all year |
| 01B | Copper, total recoverable | MO AVG | <= 14 ug/L | all year |
| 01B | Copper, total recoverable | DAILY MX | <= 21 ug/L | all year |
| 01B | Copper, total recoverable | MO AVG | <= 64 g/d | all year |
| 01B | Copper, total recoverable | DAILY MX | <= 97 g/d | all year |
| 01B | Chromium, hexavalent dissolved [as Cr] | MO AVG | <= 8 ug/L | all year |
| 01B | Chromium, hexavalent dissolved [as Cr] | DAILY MX | <= 16 ug/L | all year |
| 01B | Chromium, hexavalent dissolved [as Cr] | MO AVG | <= 36 g/d | all year |
| 01B | Chromium, hexavalent dissolved [as Cr] | DAILY MX | <= 73 g/d | all year |
| 01B | Mercury, total recoverable | MO AVG | <= .006 ug/L | all year |
| 01B | Mercury, total recoverable | DAILY MX | <= .02 ug/L | all year |
| 01B | Mercury, total recoverable | MO AVG | <= .03 g/d | all year |
| 01B | Mercury, total recoverable | DAILY MX | <= .08 g/d | all year |
| INF | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| INF | BOD, 5-day, 20 deg. C | WKLY AVG | report only | all year |
| INF | Solids, total suspended | MO AVG | report only | all year |
| INF | Solids, total suspended | WKLY AVG | report only | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states