GUERNSEY CO. WATER DEPT.
OH · PWS ID OH3000603 · Community water system
44
contaminants tested
14
detected
8,891
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFOA | 0.0098 ug/L | 3/3 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 30.4 UG/L | 59/59 | SYR4 | 2012–2019 |
| Chloroform | 99 UG/L | 59/59 | SYR4 | 2012–2019 |
| Dibromochloromethane | 8.7 UG/L | 59/59 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 36.2 UG/L | 59/59 | SYR4 | 2012–2019 |
| TTHM | 129.2 UG/L | 59/59 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 29.7 UG/L | 58/59 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 65 UG/L | 57/59 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0099 mg/L | 18/18 | LCR | 2023 |
| Monochloroacetic acid | 3.2 UG/L | 14/59 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 2 UG/L | 9/59 | SYR4 | 2012–2019 |
| COPPER, FREE | 591 UG/L | 7/40 | SYR4 | 2014–2017 |
| Lead | 7.1 UG/L | 1/40 | SYR4 | 2014–2017 |
| lithium | 9.7 ug/L | 1/3 | UCMR-5 | 2025 |
30 contaminants tested, none detected
11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONABromoformHFPO-DAMonobromoacetic acidNEtFOSAANFDHANMeFOSAAPFBAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFOSPFPeAPFPeSPFTAPFTrDAPFUnA