SOMERTON CITY OF
PWS ID: AZ0414015 · SOMERTON, Arizona 85350
PFAS Detected
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
14,197
Total Violations
190
Health-Based Violations
1
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 3,624
- County
- Yuma
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 152
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 16 | 2023 |
| Revised Total Coliform Rule | RPT | 12 | 2024 |
| Consumer Confidence Rule | Other | 8 | 2019 |
| TTHM | MR | 7 | 2020 |
| Coliform (TCR) | MR | 6 | 2004 |
| Total Haloacetic Acids (HAA5) | MR | 5 | 2020 |
| Revised Total Coliform Rule | MON | 4 | 2016 |
| BHC-GAMMA | MR | 3 | 2004 |
| Methoxychlor | MR | 3 | 2004 |
| Toxaphene | MR | 3 | 2004 |
| Dalapon | MR | 3 | 2004 |
| Diquat | MR | 3 | 2004 |
| OXAMYL | MR | 3 | 2004 |
| Simazine | MR | 3 | 2004 |
| Dinoseb | MR | 3 | 2004 |
| Hexachlorocyclopentadiene | MR | 3 | 2004 |
| Carbofuran | MR | 3 | 2004 |
| Atrazine | MR | 3 | 2004 |
| LASSO | MR | 3 | 2004 |
| Heptachlor | MR | 3 | 2004 |
| 2,4-D | MR | 3 | 2004 |
| 2,4,5-TP | MR | 3 | 2004 |
| HEXACHLOROBENZENE | MR | 3 | 2004 |
| Chlordane | MR | 3 | 2004 |
| Endrin | MR | 3 | 2004 |
| Di(2-ethylhexyl) adipate | MR | 3 | 2004 |
| Di(2-ethylhexyl) phthalate | MR | 3 | 2004 |
| Picloram | MR | 3 | 2004 |
| Endothall | MR | 3 | 2004 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 3 | 2004 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| 11Cl-PF3OUdS | 9/11/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NFDHA | 9/11/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFHpS | 9/11/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 9/11/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxA | 9/11/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 9/11/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 9/11/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 9/11/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 9/11/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFBS | 9/11/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 9/11/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 9/11/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 9/11/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 9/11/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOA | 9/11/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| ADONA | 9/11/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 9/11/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 9/11/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 9/11/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 9Cl-PF3ONS | 9/11/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| HFPO-DA | 9/11/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBA | 9/11/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 9/11/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 9/11/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 9/11/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 9/11/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeA | 9/11/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 9/11/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 9/11/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| lithium | 8/29/2023 | 97.7000 µg/L | 9 µg/L | Detected |
| PFOA | 2/13/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeS | 2/13/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpS | 2/13/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 2/13/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 2/13/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 2/13/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 2/13/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 2/13/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 2/13/2024 | 79.1000 µg/L | 9 µg/L | Detected |
| PFDoA | 2/13/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 2/13/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 2/13/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFBS | 2/13/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 2/13/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 2/13/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 2/13/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 2/13/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDA | 2/13/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBA | 2/13/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFPeA | 2/13/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
PFAS data from EPA UCMR5 monitoring program (2023-2025).
This data is provided for informational purposes only.