CITY OF BUCKEYE - VALENCIA TOWN DIVISION
PWS ID: AZ0407078 · BUCKEYE, Arizona 85326
PFAS Detected
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
30,377
Total Violations
341
Health-Based Violations
15
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 11,355
- County
- Maricopa
- School/Daycare
- No
- MCL Violations
- 15
- Monitoring Violations
- 292
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 12 | 2022 |
| Consumer Confidence Rule | Other | 11 | 2024 |
| Coliform (TCR) | MR | 10 | 2016 |
| Coliform (TCR) | MCL | 9 | 2015 |
| Fluoride | MR | 8 | 2009 |
| Nitrate | MR | 8 | 2017 |
| Pentachlorophenol | MR | 6 | 2015 |
| Glyphosate | MR | 6 | 2015 |
| 2,4,5-TP | MR | 6 | 2015 |
| Methoxychlor | MR | 6 | 2015 |
| OXAMYL | MR | 6 | 2015 |
| Dalapon | MR | 6 | 2015 |
| Diquat | MR | 6 | 2015 |
| LASSO | MR | 6 | 2015 |
| Endrin | MR | 6 | 2015 |
| 2,4-D | MR | 6 | 2015 |
| Atrazine | MR | 6 | 2015 |
| 2,3,7,8-TCDD | MR | 6 | 2015 |
| Heptachlor epoxide | MR | 6 | 2015 |
| Toxaphene | MR | 6 | 2015 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 6 | 2015 |
| Dinoseb | MR | 6 | 2015 |
| Chlordane | MR | 6 | 2015 |
| ETHYLENE DIBROMIDE | MR | 6 | 2015 |
| Benzo(a)pyrene | MR | 6 | 2015 |
| Carbofuran | MR | 6 | 2015 |
| Simazine | MR | 6 | 2015 |
| Di(2-ethylhexyl) adipate | MR | 6 | 2015 |
| Endothall | MR | 6 | 2015 |
| BHC-GAMMA | MR | 6 | 2015 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFBA | 5/22/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 5/22/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 5/22/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 5/22/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 5/22/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeA | 5/22/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 5/22/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| lithium | 5/22/2025 | 468.0000 µg/L | 9 µg/L | Detected |
| PFHpS | 5/22/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 5/22/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMBA | 5/22/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 5/22/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFBS | 5/22/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 5/22/2025 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| NFDHA | 5/22/2025 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| ADONA | 5/22/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTrDA | 5/22/2025 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NMeFOSAA | 5/22/2025 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFHpA | 5/22/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 5/22/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 5/22/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFUnA | 5/22/2025 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFOA | 5/22/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDA | 5/22/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 5/22/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 5/22/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 5/22/2025 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFOS | 5/22/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NEtFOSAA | 5/22/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 11Cl-PF3OUdS | 5/22/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| lithium | 11/7/2024 | 424.0000 µg/L | 9 µg/L | Detected |
| PFTA | 11/14/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| 4:2 FTS | 11/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 11/14/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 11/14/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeA | 11/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 11/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 11/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 11/14/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFPeS | 11/14/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NMeFOSAA | 11/14/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| NEtFOSAA | 11/14/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 11/14/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| 6:2 FTS | 11/14/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 11/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 11/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 11/14/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 11/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 11/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBA | 11/14/2024 | <0.005 µg/L | 0.005 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.