HARLINGEN WATER WORKS SYSTEM
TX · PWS ID TX0310002 · Community water system
107
contaminants tested
33
detected
85,900
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0088 ug/L | 5/8 | 2024 |
| PFHxA | 0.0030 ug/L | 1/8 | 2024 |
| PFPeA | 0.0030 ug/L | 1/8 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 22 UG/L | 261/268 | SYR4 | 2012–2019 |
| Bromoform | 42.4 UG/L | 261/268 | SYR4 | 2012–2019 |
| Chloroform | 17.5 UG/L | 261/268 | SYR4 | 2012–2019 |
| Dibromochloromethane | 33.7 UG/L | 261/268 | SYR4 | 2012–2019 |
| TTHM | 100 UG/L | 243/249 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 40 UG/L | 241/249 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 19.4 UG/L | 240/249 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 8.8 UG/L | 238/249 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 13.7 UG/L | 237/249 | SYR4 | 2012–2019 |
| COPPER, FREE | 769.8 UG/L | 192/192 | SYR4 | 2012–2018 |
| Lead | 45 UG/L | 96/192 | SYR4 | 2012–2018 |
| Monobromoacetic acid | 13.1 UG/L | 38/249 | SYR4 | 2012–2019 |
| Nitrate | 460 UG/L | 32/36 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 7.7 UG/L | 21/249 | SYR4 | 2012–2019 |
| Fluoride | 630 UG/L | 16/16 | SYR4 | 2012–2019 |
| Barium | 146 UG/L | 14/14 | SYR4 | 2013–2019 |
| LEAD SUMMARY | 0.0064 mg/L | 13/13 | LCR | 2024 |
| Arsenic | 2.6 UG/L | 11/14 | SYR4 | 2013–2019 |
| Selenium | 5.6 UG/L | 10/14 | SYR4 | 2013–2019 |
| lithium | 46.9 ug/L | 8/8 | UCMR-5 | 2024 |
| CYANIDE | 170 UG/L | 7/12 | SYR4 | 2014–2019 |
| Atrazine | 0.1300 UG/L | 3/25 | SYR4 | 2012–2019 |
| Combined Uranium | 2.3 UG/L | 2/2 | SYR4 | 2017 |
| Di(2-ethylhexyl) phthalate | 1.1 UG/L | 2/25 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 7 PCI/L | 2/2 | SYR4 | 2017 |
| Pentachlorophenol | 0.1400 UG/L | 2/24 | SYR4 | 2012–2019 |
| Carbon tetrachloride | 0.6000 UG/L | 1/19 | SYR4 | 2012–2019 |
| Ethylbenzene | 1.38 UG/L | 1/19 | SYR4 | 2012–2019 |
| Vinyl chloride | 0.6000 UG/L | 1/51 | SYR4 | 2012–2019 |
| Xylenes, Total | 9.95 UG/L | 1/19 | SYR4 | 2012–2019 |
74 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, TotalAsbestosBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECadmiumCarbofuranChlordaneChromiumDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDinosebETHYLENE DIBROMIDEEndrinGross Alpha, Excl. Radon and UHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeSPFTAPFTrDAPFUnAPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethylenecis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene