Know Your Environment. Protect Your Health.

Bromodichloromethane

Bonney Lake Water Department

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)

42

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.74 ppb10100.700 ppb - 3.86 ppb
20191.31 ppb880.630 ppb - 4.61 ppb
2020N/A00N/A
20211.48 ppb87ND - 6.10 ppb
20221.66 ppb87ND - 5.58 ppb
20231.21 ppb1410ND - 5.89 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
2018-03-141.30 ppb
2018-03-140.700 ppb
2018-05-151.78 ppb
2018-05-153.86 ppb
2018-06-062.39 ppb
2018-06-061.65 ppb
2018-09-201.94 ppb
2018-09-201.66 ppb
2018-12-171.17 ppb
2018-12-170.910 ppb
2019-03-180.630 ppb
2019-03-180.740 ppb
2019-05-221.40 ppb
2019-05-221.01 ppb
2019-08-130.700 ppb
2019-08-134.61 ppb
2019-11-210.650 ppb
2019-11-210.760 ppb
2021-04-0741024720.610 ppb
2021-04-074102471ND
2021-05-2441260910.970 ppb
2021-05-2441260920.830 ppb
2021-08-1241592981.33 ppb
2021-08-1241592996.10 ppb
2021-11-1742075270.600 ppb
2021-11-1742075251.40 ppb
2022-02-094241804ND
2022-02-0942418030.780 ppb
2022-05-1042868290.980 ppb
2022-05-1042868282.01 ppb
2022-08-1643639091.76 ppb
2022-08-1643639075.58 ppb
2022-11-0843748751.06 ppb
2022-11-0843748771.13 ppb
2023-02-0744119151.15 ppb
2023-02-074411914ND
2023-04-1044442941.39 ppb
2023-04-1044442911.68 ppb
2023-05-2244663320.700 ppb
2023-05-2244663291.51 ppb
2023-07-2445098580.680 ppb
2023-07-244509855ND
2023-07-244509854ND
2023-07-244509852ND
2023-09-1245257820.910 ppb
2023-09-1245257835.89 ppb
2023-11-2745564260.630 ppb
2023-11-2745564292.34 ppb