HOLBROOK CITY OF
PWS ID: AZ0409015 · HOLBROOK, Arizona 86025
PFAS Detected
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
5,318
Total Violations
207
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 2,002
- County
- Navajo
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 141
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Consumer Confidence Rule | Other | 26 | 2025 |
| Chlorine | MR | 25 | 2022 |
| Revised Total Coliform Rule | RPT | 25 | 2024 |
| 2,4-D | MR | 17 | 2019 |
| Lead and Copper Rule | MR | 13 | 2023 |
| Coliform (TCR) | MR | 10 | 2015 |
| Revised Total Coliform Rule | MON | 8 | 2024 |
| Nitrate | MR | 5 | 2004 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2019 |
| TTHM | MR | 4 | 2019 |
| Coliform (TCR) | MCL | 2 | 2008 |
| E. COLI | MR | 2 | 2016 |
| Groundwater Rule | TT | 2 | 2023 |
| BHC-GAMMA | MR | 2 | 2003 |
| Methoxychlor | MR | 2 | 2003 |
| Toxaphene | MR | 2 | 2003 |
| Dalapon | MR | 2 | 2003 |
| Diquat | MR | 2 | 2003 |
| Endothall | MR | 2 | 2003 |
| Simazine | MR | 2 | 2003 |
| Di(2-ethylhexyl) phthalate | MR | 2 | 2003 |
| Dinoseb | MR | 2 | 2003 |
| Atrazine | MR | 2 | 2003 |
| 2,4,5-TP | MR | 2 | 2003 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 2 | 2003 |
| Chlordane | MR | 2 | 2003 |
| Endrin | MR | 2 | 2003 |
| OXAMYL | MR | 2 | 2003 |
| Heptachlor | MR | 2 | 2003 |
| HEXACHLOROBENZENE | MR | 2 | 2003 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 6 of 180 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFPeS | 3/18/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 3/18/2025 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 3/18/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeA | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpS | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOS | 3/18/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 3/18/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 8:2 FTS | 3/18/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NEtFOSAA | 3/18/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpA | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 6:2 FTS | 3/18/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 3/18/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 3/18/2025 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 3/18/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFUnA | 3/18/2025 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHxA | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NMeFOSAA | 3/18/2025 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTrDA | 3/18/2025 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFTA | 3/18/2025 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| 4:2 FTS | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| lithium | 3/18/2025 | 15.0000 µg/L | 9 µg/L | Detected |
| PFOA | 3/18/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFBA | 3/18/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTA | 3/18/2025 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| 6:2 FTS | 3/18/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 3/18/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 3/18/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeA | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 3/18/2025 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| NMeFOSAA | 3/18/2025 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFHpS | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 3/18/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 3/18/2025 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 3/18/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 3/18/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 3/18/2025 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFBA | 3/18/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBS | 3/18/2025 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 3/18/2025 | <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.