Water quality report for Tonto Basin, AZ — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.
A look at Tonto Basin's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.
Lead is 8.50 ppb, 57% of the action level. PFAS has never been sampled at this system.
Graded on violations and lead, with state inspection findings. PFAS not tested.
| Contaminant | Type | Measured | Limit | Period | Status |
|---|---|---|---|---|---|
| Lead and Copper Rule | TREATMENT TECHNIQUE | — | TT | 2026 | Unaddressed |
| Consumer Confidence Rule | OTHER | — | — | 2025 | Resolved |
| Consumer Confidence Rule | OTHER | — | — | 2016 | Resolved |
| Coliform (TCR) | MONITORING AND REPORTING | — | 5% of samples | 2016 | Resolved |
| Coliform (TCR) | MCL EXCEEDANCE | — | 5% of samples | 2016 | Resolved |
| Chlorine | MONITORING AND REPORTING | — | 4.0 mg/L | 2016 | Resolved |
| Coliform (TCR) | MCL EXCEEDANCE | — | 5% of samples | 2015 | Resolved |
| Coliform (TCR) | MONITORING AND REPORTING | — | 5% of samples | 2015 | Resolved |
| Chlorine | MONITORING AND REPORTING | — | 4.0 mg/L | 2015 | Resolved |