GREAT FALLS CITY OF
MT · PWS ID MT0000525 · Community water system
104
contaminants tested
21
detected
60,000
people served
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 16 UG/L | 267/268 | SYR4 | 2012–2019 |
| Chloroform | 93 UG/L | 267/268 | SYR4 | 2012–2019 |
| TTHM | 104 UG/L | 267/268 | SYR4 | 2012–2019 |
| Dibromochloromethane | 3.7 UG/L | 264/268 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 48 UG/L | 257/257 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 109 UG/L | 257/257 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 61 UG/L | 257/257 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 1.1 UG/L | 188/257 | SYR4 | 2012–2019 |
| COPPER, FREE | 1950 UG/L | 139/151 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 4 UG/L | 114/257 | SYR4 | 2012–2019 |
| Lead | 24 UG/L | 84/151 | SYR4 | 2012–2019 |
| Monobromoacetic acid | 1.8 UG/L | 46/257 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0120 mg/L | 21/21 | LCR | 2026 |
| Nitrate-Nitrite | 270 UG/L | 20/20 | SYR4 | 2012–2019 |
| Arsenic | 4 UG/L | 9/9 | SYR4 | 2012–2019 |
| Fluoride | 900 UG/L | 8/8 | SYR4 | 2012–2019 |
| lithium | 80.8 ug/L | 4/4 | UCMR-5 | 2023 |
| Hexachlorocyclopentadiene | 0.1200 UG/L | 2/12 | SYR4 | 2012–2019 |
| Barium | 50 UG/L | 1/8 | SYR4 | 2012–2019 |
| Combined Uranium | 1 UG/L | 1/1 | SYR4 | 2014 |
| Gross Alpha, Excl. Radon and U | 3.2 PCI/L | 1/1 | SYR4 | 2014 |
83 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalBromoformCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneChromiumCombined Radium (-226 and -228)DICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebEndrinEthylbenzeneHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
GREAT FALLS