Water quality report for Mesa, AZ — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.
A look at Mesa's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.
Lead is 5.01 ppb, 33% of the action level and no violations are open. No PFAS was detected.
Graded on violations, lead, and PFAS, with state inspection findings.
| Contaminant | Type | Measured | Limit | Period | Status |
|---|---|---|---|---|---|
| Revised Total Coliform Rule | MONITORING FAILURE | — | — | 2025 | Resolved |
| Bromate | MONITORING AND REPORTING | — | 0.010 mg/L | 2025 | Resolved |
| Bromate | MONITORING AND REPORTING | — | 0.010 mg/L | 2025 | Resolved |
| 1,2,4-Trichlorobenzene | MONITORING AND REPORTING | — | 0.07 mg/L | 2023 | Resolved |
| cis-1,2-Dichloroethylene | MONITORING AND REPORTING | — | 0.07 mg/L | 2023 | Resolved |
| Xylenes, Total | MONITORING AND REPORTING | — | 10 mg/L | 2023 | Resolved |
| DICHLOROMETHANE | MONITORING AND REPORTING | — | 0.005 mg/L | 2023 | Resolved |
| o-Dichlorobenzene | MONITORING AND REPORTING | — | 0.6 mg/L | 2023 | Resolved |
| p-Dichlorobenzene | MONITORING AND REPORTING | — | 0.075 mg/L | 2023 | Resolved |
| Vinyl chloride | MONITORING AND REPORTING | — | 0.002 mg/L | 2023 | Resolved |
| 1,1-Dichloroethylene | MONITORING AND REPORTING | — | 0.007 mg/L | 2023 | Resolved |
| trans-1,2-Dichloroethylene | MONITORING AND REPORTING | — | 0.1 mg/L | 2023 | Resolved |
| 1,2-Dichloroethane | MONITORING AND REPORTING | — | 0.005 mg/L | 2023 | Resolved |
| 1,1,1-Trichloroethane | MONITORING AND REPORTING | — | 0.2 mg/L | 2023 | Resolved |
| Carbon tetrachloride | MONITORING AND REPORTING | — | 0.005 mg/L | 2023 | Resolved |
| 1,2-Dichloropropane | MONITORING AND REPORTING | — | 0.005 mg/L | 2023 | Resolved |
| Trichloroethylene | MONITORING AND REPORTING | — | 0.005 mg/L | 2023 | Resolved |
| 1,1,2-Trichloroethane | MONITORING AND REPORTING | — | 0.005 mg/L | 2023 | Resolved |
| Tetrachloroethylene | MONITORING AND REPORTING | — | 0.005 mg/L | 2023 | Resolved |
| CHLOROBENZENE | MONITORING AND REPORTING | — | 0.1 mg/L | 2023 | Resolved |
| Benzene | MONITORING AND REPORTING | — | 0.005 mg/L | 2023 | Resolved |
| Toluene | MONITORING AND REPORTING | — | 1 mg/L | 2023 | Resolved |
| Ethylbenzene | MONITORING AND REPORTING | — | 0.7 mg/L | 2023 | Resolved |
| Styrene | MONITORING AND REPORTING | — | 0.1 mg/L | 2023 | Resolved |
| Di(2-ethylhexyl) phthalate | MONITORING AND REPORTING | — | 0.006 mg/L | 2023 | Resolved |
| CARBON, TOTAL | MONITORING AND REPORTING | — | TT | 2021 | Resolved |
| Chlorite | MONITORING AND REPORTING | — | 1.0 mg/L | 2020 | Resolved |
| Turbidity | MONITORING AND REPORTING | — | TT | 2020 | Resolved |
| Cryptosporidium | MONITORING AND REPORTING | — | — | 2020 | Resolved |
| E. COLI | MONITORING AND REPORTING | — | 0 | 2020 | Resolved |
| Interim Enhanced Surface Water Treatment Rule | MONITORING AND REPORTING | — | — | 2020 | Resolved |
| Surface Water Treatment Rule | MONITORING AND REPORTING | — | — | 2020 | Resolved |
| Nitrate | MONITORING AND REPORTING | — | 10 mg/L | 2020 | Resolved |
| Gross Alpha, Excl. Radon and U | MONITORING AND REPORTING | — | 15 pCi/L | 2020 | Resolved |
| Combined Uranium | MONITORING AND REPORTING | — | 30 ug/L | 2020 | Resolved |
| Combined Radium (-226 and -228) | MONITORING AND REPORTING | — | 5 pCi/L | 2020 | Resolved |
| Radium-226 | MONITORING AND REPORTING | — | — | 2020 | Resolved |
| Radium-228 | MONITORING AND REPORTING | — | — | 2020 | Resolved |
| 1,2,4-Trichlorobenzene | MONITORING AND REPORTING | — | 0.07 mg/L | 2020 | Resolved |
| cis-1,2-Dichloroethylene | MONITORING AND REPORTING | — | 0.07 mg/L | 2020 | Resolved |
| Xylenes, Total | MONITORING AND REPORTING | — | 10 mg/L | 2020 | Resolved |
| DICHLOROMETHANE | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| o-Dichlorobenzene | MONITORING AND REPORTING | — | 0.6 mg/L | 2020 | Resolved |
| p-Dichlorobenzene | MONITORING AND REPORTING | — | 0.075 mg/L | 2020 | Resolved |
| Vinyl chloride | MONITORING AND REPORTING | — | 0.002 mg/L | 2020 | Resolved |
| 1,1-Dichloroethylene | MONITORING AND REPORTING | — | 0.007 mg/L | 2020 | Resolved |
| trans-1,2-Dichloroethylene | MONITORING AND REPORTING | — | 0.1 mg/L | 2020 | Resolved |
| 1,2-Dichloroethane | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| 1,1,1-Trichloroethane | MONITORING AND REPORTING | — | 0.2 mg/L | 2020 | Resolved |
| Carbon tetrachloride | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| 1,2-Dichloropropane | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| Trichloroethylene | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| 1,1,2-Trichloroethane | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| Tetrachloroethylene | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| CHLOROBENZENE | MONITORING AND REPORTING | — | 0.1 mg/L | 2020 | Resolved |
| Benzene | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| Toluene | MONITORING AND REPORTING | — | 1 mg/L | 2020 | Resolved |
| Ethylbenzene | MONITORING AND REPORTING | — | 0.7 mg/L | 2020 | Resolved |
| Styrene | MONITORING AND REPORTING | — | 0.1 mg/L | 2020 | Resolved |
| Nitrate | MONITORING AND REPORTING | — | 10 mg/L | 2020 | Resolved |
| Gross Alpha, Excl. Radon and U | MONITORING AND REPORTING | — | 15 pCi/L | 2020 | Resolved |
| Combined Uranium | MONITORING AND REPORTING | — | 30 ug/L | 2020 | Resolved |
| Combined Radium (-226 and -228) | MONITORING AND REPORTING | — | 5 pCi/L | 2020 | Resolved |
| Radium-226 | MONITORING AND REPORTING | — | — | 2020 | Resolved |
| Radium-228 | MONITORING AND REPORTING | — | — | 2020 | Resolved |
| Nitrate | MONITORING AND REPORTING | — | 10 mg/L | 2020 | Resolved |
| 1,2,4-Trichlorobenzene | MONITORING AND REPORTING | — | 0.07 mg/L | 2020 | Resolved |
| cis-1,2-Dichloroethylene | MONITORING AND REPORTING | — | 0.07 mg/L | 2020 | Resolved |
| Xylenes, Total | MONITORING AND REPORTING | — | 10 mg/L | 2020 | Resolved |
| DICHLOROMETHANE | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| o-Dichlorobenzene | MONITORING AND REPORTING | — | 0.6 mg/L | 2020 | Resolved |
| p-Dichlorobenzene | MONITORING AND REPORTING | — | 0.075 mg/L | 2020 | Resolved |
| Vinyl chloride | MONITORING AND REPORTING | — | 0.002 mg/L | 2020 | Resolved |
| 1,1-Dichloroethylene | MONITORING AND REPORTING | — | 0.007 mg/L | 2020 | Resolved |
| trans-1,2-Dichloroethylene | MONITORING AND REPORTING | — | 0.1 mg/L | 2020 | Resolved |
| 1,2-Dichloroethane | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| 1,1,1-Trichloroethane | MONITORING AND REPORTING | — | 0.2 mg/L | 2020 | Resolved |
| Carbon tetrachloride | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| 1,2-Dichloropropane | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| Trichloroethylene | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| 1,1,2-Trichloroethane | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| Tetrachloroethylene | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| CHLOROBENZENE | MONITORING AND REPORTING | — | 0.1 mg/L | 2020 | Resolved |
| Benzene | MONITORING AND REPORTING | — | 0.005 mg/L | 2020 | Resolved |
| Toluene | MONITORING AND REPORTING | — | 1 mg/L | 2020 | Resolved |
| Ethylbenzene | MONITORING AND REPORTING | — | 0.7 mg/L | 2020 | Resolved |
| Styrene | MONITORING AND REPORTING | — | 0.1 mg/L | 2020 | Resolved |
| Interim Enhanced Surface Water Treatment Rule | MONITORING AND REPORTING | — | — | 2019 | Resolved |
| Surface Water Treatment Rule | MONITORING AND REPORTING | — | — | 2019 | Resolved |
| Chlorine | MONITORING AND REPORTING | — | 4.0 mg/L | 2019 | Resolved |
| Nitrate | MONITORING AND REPORTING | — | 10 mg/L | 2019 | Resolved |