Know Your Environment. Protect Your Health.

Dibromochloromethane

Bonney Lake Water Department

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane 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)

41

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.21 ppb10100.590 ppb - 2.59 ppb
20191.20 ppb880.660 ppb - 3.20 ppb
2020N/A00N/A
20211.10 ppb87ND - 3.63 ppb
20221.13 ppb87ND - 3.00 ppb
20230.861 ppb149ND - 3.17 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2018-03-141.20 ppb
2018-03-140.800 ppb
2018-05-151.38 ppb
2018-05-152.59 ppb
2018-06-061.70 ppb
2018-06-061.29 ppb
2018-09-200.900 ppb
2018-09-201.06 ppb
2018-12-170.590 ppb
2018-12-170.630 ppb
2019-03-181.01 ppb
2019-03-180.720 ppb
2019-05-221.43 ppb
2019-05-221.09 ppb
2019-08-133.20 ppb
2019-08-130.690 ppb
2019-11-210.780 ppb
2019-11-210.660 ppb
2021-04-0741024720.710 ppb
2021-04-0741024710.770 ppb
2021-05-2441260920.830 ppb
2021-05-2441260910.870 ppb
2021-08-1241592993.63 ppb
2021-08-1241592981.07 ppb
2021-11-1742075250.890 ppb
2021-11-174207527ND
2022-02-0942418030.840 ppb
2022-02-094241804ND
2022-05-1042868281.35 ppb
2022-05-1042868291.01 ppb
2022-08-1643639073.00 ppb
2022-08-1643639091.06 ppb
2022-11-0843748770.930 ppb
2022-11-0843748750.840 ppb
2023-02-0744119150.940 ppb
2023-02-074411914ND
2023-04-1044442941.45 ppb
2023-04-1044442911.41 ppb
2023-05-2244663320.660 ppb
2023-05-2244663291.24 ppb
2023-07-244509858ND
2023-07-244509855ND
2023-07-244509854ND
2023-07-244509852ND
2023-09-1245257820.780 ppb
2023-09-1245257833.17 ppb
2023-11-2745564291.86 ppb
2023-11-2745564260.540 ppb