GUADALUPE VALLEY MID
CA · PWS ID CA4110005 · Community water system
42
contaminants tested
17
detected
1,472
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHpA | 0.0043 ug/L | 1/4 | 2023 |
| PFHxA | 0.0042 ug/L | 1/4 | 2023 |
| PFHxS | 0.0034 ug/L | 1/4 | 2023 |
| PFOA | 0.0096 ug/L | 1/4 | 2023 |
| PFOS | 0.0083 ug/L | 1/4 | 2023 |
| PFPeA | 0.0041 ug/L | 1/4 | 2023 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Total Haloacetic Acids (HAA5) | 66.1 UG/L | 26/26 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 30.4 UG/L | 25/25 | SYR4 | 2012–2019 |
| TTHM | 65.1 UG/L | 25/25 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 33.5 UG/L | 25/25 | SYR4 | 2012–2019 |
| Chloroform | 62.4 UG/L | 24/24 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0190 mg/L | 22/22 | LCR | 2025 |
| Bromodichloromethane | 6.54 UG/L | 19/24 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 2.5 UG/L | 13/25 | SYR4 | 2012–2019 |
| Dibromochloromethane | 2.74 UG/L | 6/24 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 1.03 UG/L | 2/25 | SYR4 | 2012–2019 |
| Monobromoacetic acid | 0.8300 UG/L | 1/25 | SYR4 | 2012–2019 |
25 contaminants tested, none detected
11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONABromoformHFPO-DANEtFOSAANFDHANMeFOSAAPFBAPFBSPFDAPFDoAPFEESAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAlithium