Know Your Environment. Protect Your Health.

Bromodichloromethane

City of Jamestown

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

37

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.385 ppb85ND - 0.670 ppb
20190.611 ppb87ND - 0.940 ppb
20200.359 ppb85ND - 0.620 ppb
20210.639 ppb87ND - 1.07 ppb
20220.534 ppb86ND - 0.990 ppb
20230.600 ppb87ND - 0.850 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
2018-01-1718-S78ND
2018-01-1718-S77ND
2018-04-1618-S5240.640 ppb
2018-04-1618-S5250.670 ppb
2018-07-1818-S1193ND
2018-07-1818-S11940.580 ppb
2018-10-1518-S22610.660 ppb
2018-10-1518-S22620.530 ppb
2019-01-1519-S450.500 ppb
2019-01-1519-S44ND
2019-04-1619-S4360.650 ppb
2019-04-1619-S4350.540 ppb
2019-07-1519-S11290.550 ppb
2019-07-1519-S11280.780 ppb
2019-10-1419-S23220.930 ppb
2019-10-1419-S23230.940 ppb
2020-01-13360270ND
2020-01-133602690.540 ppb
2020-04-133630760.620 ppb
2020-04-133630750.500 ppb
2020-07-213685660.610 ppb
2020-07-21369616ND
2020-10-13372361ND
2020-10-133723620.600 ppb
2021-01-123759101.07 ppb
2021-01-12375909ND
2021-04-133787860.640 ppb
2021-04-133787870.710 ppb
2021-07-203834130.500 ppb
2021-07-203834140.670 ppb
2021-10-113891020.770 ppb
2021-10-113891010.750 ppb
2022-01-113911890.550 ppb
2022-01-113911920.640 ppb
2022-04-11394226ND
2022-04-11394225ND
2022-07-193984320.990 ppb
2022-07-193984340.870 ppb
2022-10-044025600.650 ppb
2022-10-044025610.570 ppb
2023-01-104058400.620 ppb
2023-01-104058410.670 ppb
2023-04-194100890.670 ppb
2023-04-19410088ND
2023-07-254150640.560 ppb
2023-07-254150630.850 ppb
2023-10-104186320.600 ppb
2023-10-104186330.830 ppb