TOMBSTONE CITY OF
PWS ID: AZ0402033 · TOMBSTONE, Arizona 85638
Population Served
1,545
Total Violations
744
Health-Based Violations
61
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 927
- County
- Cochise
- School/Daycare
- No
- MCL Violations
- 59
- Monitoring Violations
- 599
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MR | 84 | 2020 |
| Interim Enhanced Surface Water Treatment Rule | MR | 55 | 2023 |
| Chlorine | MR | 50 | 2019 |
| Arsenic | MCL | 50 | 2017 |
| Coliform (TCR) | MR | 45 | 2014 |
| Surface Water Treatment Rule | MR | 41 | 2023 |
| Consumer Confidence Rule | Other | 28 | 2019 |
| Nitrate | MR | 20 | 2006 |
| TTHM | MR | 16 | 2021 |
| Total Haloacetic Acids (HAA5) | MR | 13 | 2017 |
| Di(2-ethylhexyl) phthalate | MR | 8 | 2003 |
| Barium | MR | 8 | 2007 |
| Chromium | MR | 8 | 2007 |
| Selenium | MR | 8 | 2007 |
| Cadmium | MR | 8 | 2007 |
| Mercury | MR | 8 | 2007 |
| cis-1,2-Dichloroethylene | MR | 7 | 2018 |
| 1,1-Dichloroethylene | MR | 7 | 2018 |
| 1,2-Dichloroethane | MR | 7 | 2018 |
| 1,1,1-Trichloroethane | MR | 7 | 2018 |
| Benzene | MR | 7 | 2018 |
| Toluene | MR | 7 | 2018 |
| Styrene | MR | 7 | 2018 |
| DICHLOROMETHANE | MR | 7 | 2018 |
| trans-1,2-Dichloroethylene | MR | 7 | 2018 |
| Carbon tetrachloride | MR | 7 | 2018 |
| 1,1,2-Trichloroethane | MR | 7 | 2018 |
| Ethylbenzene | MR | 7 | 2018 |
| Fluoride | MR | 7 | 2002 |
| Coliform (TCR) | MCL | 7 | 2014 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.