ORCHARD DALE WATER DISTRICT
CA · PWS ID CA1910101 · Community water system
42
contaminants tested
18
detected
25,000
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0088 ug/L | 2/2 | 2025 |
| PFBS | 0.0072 ug/L | 2/2 | 2025 |
| PFHxA | 0.0072 ug/L | 2/2 | 2025 |
| PFHxS | 0.0040 ug/L | 2/2 | 2025 |
| PFOA | 0.0099 ug/L | 2/2 | 2025 |
| PFOS | 0.0230 ug/L | 2/2 | 2025 |
| PFPeA | 0.0100 ug/L | 2/2 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromoform | 10.6 UG/L | 124/124 | SYR4 | 2012–2019 |
| TTHM | 29.2 UG/L | 124/124 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 4.6 UG/L | 117/124 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 7.1 UG/L | 117/124 | SYR4 | 2012–2019 |
| Dibromochloromethane | 10.8 UG/L | 115/124 | SYR4 | 2012–2019 |
| Bromodichloromethane | 7.4 UG/L | 76/124 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0078 mg/L | 41/41 | LCR | 2024 |
| Chloroform | 4.6 UG/L | 29/124 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 1.6 UG/L | 7/124 | SYR4 | 2012–2019 |
| Monobromoacetic acid | 1.7 UG/L | 3/124 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 2.2 UG/L | 1/124 | SYR4 | 2012–2019 |
24 contaminants tested, none detected
11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAHFPO-DAMonochloroacetic acidNEtFOSAANFDHANMeFOSAAPFDAPFDoAPFEESAPFHpAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAlithium