Know Your Environment. Protect Your Health.

Bromodichloromethane

Firgrove Mutual Inc

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

 

55

Samples

0

Samples exceeding legal limit (MCL)

38

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.922 ppb96ND - 2.23 ppb
20191.48 ppb87ND - 2.82 ppb
2020N/A00N/A
20210.579 ppb199ND - 2.10 ppb
20220.865 ppb118ND - 2.21 ppb
20231.33 ppb880.650 ppb - 1.91 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane was 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 and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-210.800 ppb
2018-02-212.00 ppb
2018-05-08ND
2018-06-05ND
2018-06-051.20 ppb
2018-09-11ND
2018-09-110.920 ppb
2018-12-112.23 ppb
2018-12-111.15 ppb
2019-02-19ND
2019-02-191.21 ppb
2019-06-191.60 ppb
2019-06-191.73 ppb
2019-09-100.530 ppb
2019-09-102.82 ppb
2019-12-031.14 ppb
2019-12-032.80 ppb
2021-03-0840875001.05 ppb
2021-03-0840875010.700 ppb
2021-04-224106996ND
2021-04-224106995ND
2021-04-224109492ND
2021-05-0341152200.510 ppb
2021-05-034115218ND
2021-05-044115219ND
2021-05-264122784ND
2021-05-264122785ND
2021-06-104131887ND
2021-06-1041316641.25 ppb
2021-06-1041316630.700 ppb
2021-08-164163794ND
2021-09-1441798731.89 ppb
2021-09-1441798742.10 ppb
2021-10-134191674ND
2021-12-0942166001.52 ppb
2021-12-0942165991.29 ppb
2022-03-044258476ND
2022-03-0942580210.640 ppb
2022-03-0942580221.17 ppb
2022-03-284268782ND
2022-04-204274621ND
2022-06-1442997081.71 ppb
2022-06-1442997090.970 ppb
2022-09-1343631260.900 ppb
2022-09-1443631282.21 ppb
2022-12-0643903560.510 ppb
2022-12-0743903511.40 ppb
2023-03-1444330731.54 ppb
2023-03-1444330741.06 ppb
2023-05-0944552211.03 ppb
2023-05-0944552221.45 ppb
2023-09-1145257951.74 ppb
2023-09-1145257940.650 ppb
2023-10-1045391411.91 ppb
2023-10-1045391421.29 ppb