HIGHLANDS RANCH WSD
CO · PWS ID CO0118015 · Community water system
109
contaminants tested
31
detected
103,444
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 | 3/7 | 2024 |
| PFPeA | 0.0057 ug/L | 3/7 | 2024 |
| PFBS | 0.0050 ug/L | 2/7 | 2024 |
| PFHxA | 0.0051 ug/L | 2/7 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 60.3 UG/L | 239/240 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 40.1 UG/L | 224/240 | SYR4 | 2012–2019 |
| Nitrate | 200 UG/L | 30/42 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0080 mg/L | 27/27 | LCR | 2025 |
| Barium | 130 UG/L | 22/22 | SYR4 | 2012–2019 |
| Bromodichloromethane | 22.2 UG/L | 22/22 | SYR4 | 2012–2019 |
| Combined Radium (-226 and -228) | 4.6 PCI/L | 22/23 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon and U | 9 PCI/L | 22/24 | SYR4 | 2012–2019 |
| Chloroform | 11.3 UG/L | 21/22 | SYR4 | 2012–2019 |
| Fluoride | 1070 UG/L | 21/21 | SYR4 | 2012–2019 |
| Dibromochloromethane | 23.8 UG/L | 20/22 | SYR4 | 2012–2019 |
| Combined Uranium | 7.8 UG/L | 19/23 | SYR4 | 2012–2019 |
| Bromoform | 11.1 UG/L | 18/22 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 5.8 UG/L | 16/17 | SYR4 | 2015–2019 |
| Dichloroacetic Acid | 10.11 UG/L | 16/17 | SYR4 | 2015–2019 |
| Gross Beta Particle Activity | 8.2 PCI/L | 16/23 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 4.19 UG/L | 16/17 | SYR4 | 2015–2019 |
| Nitrate-Nitrite | 200 UG/L | 15/21 | SYR4 | 2012–2019 |
| Arsenic | 5 UG/L | 11/22 | SYR4 | 2012–2019 |
| Chromium | 2 UG/L | 7/22 | SYR4 | 2012–2019 |
| Monobromoacetic acid | 1.5 UG/L | 7/17 | SYR4 | 2015–2019 |
| Selenium | 3 UG/L | 6/22 | SYR4 | 2012–2019 |
| lithium | 35.2 ug/L | 6/7 | UCMR-5 | 2024 |
| Cadmium | 0.1600 UG/L | 1/22 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) phthalate | 1.9 UG/L | 1/33 | SYR4 | 2012–2019 |
| Hexachlorocyclopentadiene | 0.1300 UG/L | 1/35 | SYR4 | 2012–2019 |
| Mercury | 0.2000 UG/L | 1/22 | SYR4 | 2012–2019 |
78 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECarbofuranCarbon tetrachlorideChlordaneDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideLASSOMethoxychlorMonochloroacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene