POTOSI WSC
TX · PWS ID TX2210008 · Community water system
44
contaminants tested
23
detected
7,413
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0220 ug/L | 3/3 | 2025 |
| PFBS | 0.0061 ug/L | 3/3 | 2025 |
| PFHpA | 0.0087 ug/L | 3/3 | 2025 |
| PFHxA | 0.0157 ug/L | 3/3 | 2025 |
| PFHxS | 0.0199 ug/L | 3/3 | 2025 |
| PFOA | 0.0067 ug/L | 3/3 | 2025 |
| PFOS | 0.0210 ug/L | 3/3 | 2025 |
| PFPeA | 0.0136 ug/L | 3/3 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| COPPER, FREE | 530 UG/L | 144/220 | SYR4 | 2013–2018 |
| Lead | 44.3 UG/L | 83/220 | SYR4 | 2013–2018 |
| Bromodichloromethane | 24.8 UG/L | 63/63 | SYR4 | 2012–2019 |
| Bromoform | 82.6 UG/L | 63/63 | SYR4 | 2012–2019 |
| Dibromochloromethane | 36.8 UG/L | 63/63 | SYR4 | 2012–2019 |
| TTHM | 126 UG/L | 63/63 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 33.6 UG/L | 61/63 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 46.3 UG/L | 61/63 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 23.6 UG/L | 52/63 | SYR4 | 2012–2019 |
| Chloroform | 30.1 UG/L | 36/63 | SYR4 | 2012–2019 |
| Monobromoacetic acid | 5.7 UG/L | 36/63 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 20.3 UG/L | 20/63 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0197 mg/L | 16/16 | LCR | 2024 |
| Trichloroacetic Acid | 9.8 UG/L | 11/63 | SYR4 | 2012–2019 |
| lithium | 15.1 ug/L | 4/4 | UCMR-5 | 2025 |
21 contaminants tested, none detected
11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAHFPO-DANEtFOSAANFDHANMeFOSAAPFDAPFDoAPFEESAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnA