CITY OF MCKINNEY
TX · PWS ID TX0430039 · Community water system
44
contaminants tested
15
detected
224,043
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0087 ug/L | 4/4 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| COPPER, FREE | 998 UG/L | 250/250 | SYR4 | 2012–2018 |
| Bromodichloromethane | 35.3 UG/L | 210/210 | SYR4 | 2012–2019 |
| Chloroform | 22 UG/L | 210/210 | SYR4 | 2012–2019 |
| Dibromochloromethane | 19.2 UG/L | 210/210 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 23.6 UG/L | 210/210 | SYR4 | 2012–2019 |
| TTHM | 73.6 UG/L | 210/210 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 40.8 UG/L | 210/210 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 9.3 UG/L | 206/210 | SYR4 | 2012–2019 |
| Bromoform | 16 UG/L | 154/210 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 20.6 UG/L | 142/210 | SYR4 | 2012–2019 |
| Lead | 61.9 UG/L | 126/250 | SYR4 | 2012–2018 |
| Monobromoacetic acid | 7.1 UG/L | 111/210 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 5.8 UG/L | 71/210 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0193 mg/L | 19/19 | LCR | 2025 |
29 contaminants tested, none detected
11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAHFPO-DANEtFOSAANFDHANMeFOSAAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeAPFPeSPFTAPFTrDAPFUnAlithium