Know Your Environment. Protect Your Health.

Bromoform

Mankato

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

96

Samples

0

Samples exceeding legal limit (MCL)

84

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.938 ppb1615ND - 1.80 ppb
20190.700 ppb1614ND - 1.20 ppb
20200.869 ppb1615ND - 1.000 ppb
20210.969 ppb16160.500 ppb - 1.50 ppb
20220.950 ppb1612ND - 1.80 ppb
20231.14 ppb16160.500 ppb - 1.70 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform is based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer, harm to reproduction and child development, and change to fetal growth and development .

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-1418B0860-020.700 ppb
2018-02-1418B0860-031.20 ppb
2018-02-1418B0860-041.20 ppb
2018-02-1418B0860-011.20 ppb
2018-05-1118E1185-010.600 ppb
2018-05-1118E1185-02ND
2018-05-1118E1185-030.600 ppb
2018-05-1118E1185-040.700 ppb
2018-08-1018H1133-011.10 ppb
2018-08-1018H1133-021.000 ppb
2018-08-1018H1133-031.10 ppb
2018-08-1018H1133-041.80 ppb
2018-11-0918K0615-020.600 ppb
2018-11-0918K0615-041.10 ppb
2018-11-0918K0615-031.10 ppb
2018-11-0918K0615-011.000 ppb
2019-02-0819B0560-010.700 ppb
2019-02-0819B0560-02ND
2019-02-0819B0560-030.800 ppb
2019-02-0819B0560-040.800 ppb
2019-05-1719E1577-010.600 ppb
2019-05-1719E1577-020.600 ppb
2019-05-1719E1577-030.700 ppb
2019-05-1719E1577-040.700 ppb
2019-08-1619H1732-020.900 ppb
2019-08-1619H1732-041.10 ppb
2019-08-1619H1732-031.10 ppb
2019-08-1619H1732-011.20 ppb
2019-11-1519K0743-02ND
2019-11-1519K0743-030.700 ppb
2019-11-1519K0743-040.600 ppb
2019-11-1519K0743-010.700 ppb
2020-02-2120B1242-011.000 ppb
2020-02-2120B1242-020.800 ppb
2020-02-2120B1242-031.000 ppb
2020-02-2120B1242-040.900 ppb
2020-05-1120E0635-030.800 ppb
2020-05-1120E0635-040.900 ppb
2020-05-1120E0635-02ND
2020-05-1120E0635-010.800 ppb
2020-08-1720H1424-011.000 ppb
2020-08-1720H1424-020.900 ppb
2020-08-1720H1424-031.000 ppb
2020-08-1720H1424-041.000 ppb
2020-11-1720K0889-011.000 ppb
2020-11-1720K0889-020.800 ppb
2020-11-1720K0889-031.000 ppb
2020-11-1720K0889-041.000 ppb
2021-02-2421B1384-040.900 ppb
2021-02-2421B1384-011.000 ppb
2021-02-2421B1384-020.800 ppb
2021-02-2421B1384-031.000 ppb
2021-05-1921E1528-020.500 ppb
2021-05-1921E1528-030.800 ppb
2021-05-1921E1528-040.900 ppb
2021-05-1921E1528-010.800 ppb
2021-08-1821H1823-011.50 ppb
2021-08-1821H1823-021.10 ppb
2021-08-1821H1823-031.40 ppb
2021-08-1821H1823-041.40 ppb
2021-11-1721K1079-041.000 ppb
2021-11-1721K1079-030.900 ppb
2021-11-1721K1079-020.600 ppb
2021-11-1721K1079-010.900 ppb
2022-02-1522B1126-011.10 ppb
2022-02-1522B1126-020.700 ppb
2022-02-1522B1126-031.000 ppb
2022-02-1522B1126-041.000 ppb
2022-05-1922E1909-01ND
2022-05-1922E1909-02ND
2022-05-1922E1909-03ND
2022-05-1922E1909-04ND
2022-08-1022H1197-041.80 ppb
2022-08-1022H1197-021.10 ppb
2022-08-1022H1197-011.80 ppb
2022-08-1022H1197-031.80 ppb
2022-11-0822K0502-011.20 ppb
2022-11-0822K0502-020.900 ppb
2022-11-0822K0502-031.50 ppb
2022-11-0822K0502-041.30 ppb
2023-02-0123B0254-011.30 ppb
2023-02-0123B0254-021.20 ppb
2023-02-0123B0254-031.50 ppb
2023-02-0123B0254-041.40 ppb
2023-05-1023E1056-020.500 ppb
2023-05-1023E1056-040.600 ppb
2023-05-1023E1056-030.500 ppb
2023-05-1023E1056-010.500 ppb
2023-08-1423H1769-011.60 ppb
2023-08-1423H1769-021.20 ppb
2023-08-1423H1769-031.70 ppb
2023-08-1423H1769-041.60 ppb
2023-11-1523K0876-011.10 ppb
2023-11-1523K0876-020.900 ppb
2023-11-1523K0876-031.50 ppb
2023-11-1523K0876-041.10 ppb