GUNNISON CITY OF
CO · PWS ID CO0126325 · Community water system
107
contaminants tested
24
detected
9,610
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxA | 0.0072 ug/L | 2/18 | 2024 |
| PFPeA | 0.0051 ug/L | 2/18 | 2024 |
| PFBS | 0.0030 ug/L | 1/18 | 2024 |
| PFOS | 0.0042 ug/L | 1/18 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 2000 UG/L | 122/126 | SYR4 | 2012–2018 |
| Barium | 160 UG/L | 31/31 | SYR4 | 2012–2018 |
| Combined Uranium | 2.8 UG/L | 18/18 | SYR4 | 2013–2019 |
| Nitrate-Nitrite | 1320 UG/L | 18/18 | SYR4 | 2013–2019 |
| LEAD SUMMARY | 0.0090 mg/L | 17/17 | LCR | 2025 |
| Gross Alpha, Excl. Radon and U | 2.96 PCI/L | 14/18 | SYR4 | 2013–2019 |
| Fluoride | 130 UG/L | 11/20 | SYR4 | 2012–2018 |
| Antimony, Total | 12 UG/L | 10/53 | SYR4 | 2012–2019 |
| TTHM | 11.3 UG/L | 9/17 | SYR4 | 2012–2019 |
| Bromodichloromethane | 1.7 UG/L | 5/23 | SYR4 | 2012–2019 |
| Bromoform | 5.5 UG/L | 5/23 | SYR4 | 2012–2019 |
| Chloroform | 1 UG/L | 5/23 | SYR4 | 2012–2019 |
| Dibromochloromethane | 3.9 UG/L | 5/23 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 4.5 UG/L | 5/8 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 2.3 UG/L | 4/5 | SYR4 | 2015–2019 |
| Di(2-ethylhexyl) phthalate | 1.5 UG/L | 2/57 | SYR4 | 2012–2019 |
| Selenium | 0.9900 UG/L | 2/31 | SYR4 | 2012–2018 |
| Combined Radium (-226 and -228) | 2.7 PCI/L | 1/9 | SYR4 | 2019 |
| Monochloroacetic acid | 2.3 UG/L | 1/5 | SYR4 | 2015–2019 |
| Pentachlorophenol | 0.0430 UG/L | 1/45 | SYR4 | 2012–2019 |
83 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-PF3ONSADONAArsenicAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECadmiumCarbofuranCarbon tetrachlorideChlordaneChromiumDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDichloroacetic AcidDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorMonobromoacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBAPFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFOAPFPeSPFTAPFTrDAPFUnAPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene