CREST HILL
IL · PWS ID IL1970250 · Community water system
110
contaminants tested
32
detected
21,169
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBS | 0.0521 ug/L | 14/14 | 2023 |
| PFPeA | 0.0322 ug/L | 12/14 | 2023 |
| PFHxA | 0.0244 ug/L | 11/14 | 2023 |
| PFBA | 0.0272 ug/L | 10/14 | 2023 |
| PFHxS | 0.0122 ug/L | 9/14 | 2023 |
| PFHpA | 0.0133 ug/L | 6/14 | 2023 |
| PFOA | 0.0137 ug/L | 6/14 | 2023 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| COPPER, FREE | 2800 UG/L | 73/103 | SYR4 | 2012–2018 |
| Nitrate | 1560 UG/L | 48/130 | SYR4 | 2012–2019 |
| Bromodichloromethane | 14.8 UG/L | 28/28 | SYR4 | 2012–2019 |
| Dibromochloromethane | 8.03 UG/L | 28/28 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0500 mg/L | 28/28 | LCR | 2025 |
| TTHM | 70.9 UG/L | 28/28 | SYR4 | 2012–2019 |
| Chloroform | 49.9 UG/L | 26/28 | SYR4 | 2012–2019 |
| Barium | 148 UG/L | 22/22 | SYR4 | 2012–2019 |
| Fluoride | 1560 UG/L | 22/22 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 26.7 UG/L | 20/28 | SYR4 | 2012–2019 |
| Arsenic | 1.51 UG/L | 18/22 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 15 UG/L | 18/28 | SYR4 | 2012–2019 |
| Bromoform | 2.89 UG/L | 17/28 | SYR4 | 2012–2019 |
| Combined Radium (-226 and -228) | 3.79 PCI/L | 17/17 | SYR4 | 2012–2018 |
| Trichloroacetic Acid | 9.01 UG/L | 14/28 | SYR4 | 2012–2019 |
| lithium | 34.8 ug/L | 14/14 | UCMR-5 | 2023 |
| Dibromoacetic acid | 2.9 UG/L | 13/28 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 1140 UG/L | 12/36 | SYR4 | 2012–2016 |
| Monobromoacetic acid | 2.61 UG/L | 4/28 | SYR4 | 2012–2019 |
| Chromium | 7.2 UG/L | 2/22 | SYR4 | 2012–2019 |
| Lead | 6.38 UG/L | 2/103 | SYR4 | 2012–2018 |
| Nitrite | 39 UG/L | 2/66 | SYR4 | 2012–2019 |
| CYANIDE | 5 UG/L | 1/20 | SYR4 | 2012–2018 |
| Gross Beta Particle Activity | 5 PCI/L | 1/1 | SYR4 | 2014 |
| Selenium | 2.33 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-PF3OUdS2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECadmiumCarbofuranCarbon tetrachlorideChlordaneDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorMonochloroacetic acidNEtFOSAANFDHANMeFOSAAOXAMYLPFDAPFDoAPFEESAPFHpSPFMBAPFMPAPFNAPFOSPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
CREST HILL