CHINO VALLEY SCHOOL - DEL RIO
PWS ID: AZ0413187 · CHINO VALLEY, Arizona 86323
PFAS Detected
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
800
Total Violations
84
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 10
- County
- Yavapai
- School/Daycare
- Yes
- MCL Violations
- 1
- Monitoring Violations
- 73
- Treatment Tech Violations
- 3
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 8 | 2001 |
| Nitrate | MR | 5 | 2001 |
| Lead and Copper Rule | MR | 3 | 2017 |
| LEAD AND COPPER RULE REVISIONS | RPT | 3 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 3 | 2024 |
| Styrene | MR | 2 | 2002 |
| cis-1,2-Dichloroethylene | MR | 2 | 2002 |
| Public Notice | Other | 2 | 2024 |
| Xylenes, Total | MR | 1 | 1998 |
| DICHLOROMETHANE | MR | 1 | 1998 |
| o-Dichlorobenzene | MR | 1 | 1998 |
| Coliform (TCR) | MCL | 1 | 2001 |
| trans-1,2-Dichloroethylene | MR | 1 | 1998 |
| 1,1,1-Trichloroethane | MR | 1 | 1998 |
| Carbon tetrachloride | MR | 1 | 1998 |
| 1,2-Dichloropropane | MR | 1 | 1998 |
| CHLOROBENZENE | MR | 1 | 1998 |
| Benzene | MR | 1 | 1998 |
| Toluene | MR | 1 | 1998 |
| Ethylbenzene | MR | 1 | 1998 |
| Methoxychlor | MR | 1 | 1998 |
| Endrin | MR | 1 | 1998 |
| BHC-GAMMA | MR | 1 | 1998 |
| Toxaphene | MR | 1 | 1998 |
| Endothall | MR | 1 | 1998 |
| Glyphosate | MR | 1 | 1998 |
| Simazine | MR | 1 | 1998 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 1998 |
| Picloram | MR | 1 | 1998 |
| Dinoseb | MR | 1 | 1998 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 60 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| 8:2 FTS | 8/27/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NFDHA | 8/27/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFMPA | 8/27/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeA | 8/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 8/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 8/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 8/27/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpS | 8/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 4:2 FTS | 8/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 8/27/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 6:2 FTS | 8/27/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpA | 8/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOS | 8/27/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 8/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 8/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 8/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 8/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 8/27/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFOA | 8/27/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFBA | 8/27/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHxA | 8/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| ADONA | 8/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 8/27/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 8/27/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFUnA | 8/27/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| lithium | 4/29/2024 | <9 µg/L | 9 µg/L | Not Detected |
| PFTA | 4/29/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| NEtFOSAA | 4/29/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 4/29/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTrDA | 4/29/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NFDHA | 10/16/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFBA | 10/16/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| lithium | 10/16/2024 | <9 µg/L | 9 µg/L | Not Detected |
| PFEESA | 10/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 10/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 10/16/2024 | 0.0030 µg/L | 0.003 µg/L | Detected |
| PFMPA | 10/16/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 8:2 FTS | 10/16/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 10/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 6:2 FTS | 10/16/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFPeS | 10/16/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NEtFOSAA | 10/16/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 10/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 10/16/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 10/16/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NMeFOSAA | 10/16/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFBS | 10/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 10/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 10/16/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 10/16/2024 | <0.004 µg/L | 0.004 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.