JOHNSON COUNTY SUD
TX · PWS ID TX1260018 · Community water system
109
contaminants tested
30
detected
65,517
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0138 ug/L | 12/40 | 2025 |
| PFHxA | 0.0045 ug/L | 10/40 | 2025 |
| PFPeA | 0.0050 ug/L | 10/40 | 2025 |
| PFBS | 0.0034 ug/L | 5/40 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 1910 UG/L | 250/262 | SYR4 | 2012–2019 |
| COPPER, FREE | 320 UG/L | 191/195 | SYR4 | 2013–2018 |
| Dibromochloromethane | 33.4 UG/L | 150/182 | SYR4 | 2012–2019 |
| TTHM | 102 UG/L | 128/128 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 72.8 UG/L | 123/128 | SYR4 | 2012–2019 |
| Bromodichloromethane | 28.6 UG/L | 122/182 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 32.2 UG/L | 118/128 | SYR4 | 2012–2019 |
| Chloroform | 75.6 UG/L | 116/182 | SYR4 | 2012–2019 |
| Bromoform | 17.3 UG/L | 112/182 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 20 UG/L | 92/128 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 17.7 UG/L | 90/128 | SYR4 | 2012–2019 |
| Lead | 70.4 UG/L | 66/195 | SYR4 | 2013–2018 |
| Monobromoacetic acid | 8.2 UG/L | 54/128 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 811 UG/L | 45/48 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 6.5 UG/L | 41/128 | SYR4 | 2012–2019 |
| Barium | 64 UG/L | 23/23 | SYR4 | 2016–2019 |
| Chromium | 4.1 UG/L | 23/23 | SYR4 | 2016–2019 |
| Fluoride | 2440 UG/L | 23/23 | SYR4 | 2012–2018 |
| lithium | 65.6 ug/L | 21/40 | UCMR-5 | 2025 |
| LEAD SUMMARY | 0.0061 mg/L | 15/15 | LCR | 2025 |
| Arsenic | 1.8 UG/L | 6/23 | SYR4 | 2016–2019 |
| Di(2-ethylhexyl) phthalate | 1.08 UG/L | 5/46 | SYR4 | 2012–2019 |
| Combined Radium (-226 and -228) | 1.5 PCI/L | 3/3 | SYR4 | 2017 |
| CYANIDE | 20.8 UG/L | 1/22 | SYR4 | 2014–2017 |
| Di(2-ethylhexyl) adipate | 0.0422 UG/L | 1/46 | SYR4 | 2012–2019 |
| Xylenes, Total | 3.07 UG/L | 1/54 | SYR4 | 2014–2019 |
79 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAsbestosAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECadmiumCarbofuranCarbon tetrachlorideChlordaneCombined UraniumDICHLOROMETHANEDalaponDinosebETHYLENE DIBROMIDEEndrinEthylbenzeneGross Alpha, Excl. Radon and UGross Beta Particle ActivityHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl chloridecis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene