Know Your Environment. Protect Your Health.

Dibromochloromethane

Wilton Water & Sewer Authority

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.

 

49

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0638 ppb81ND - 0.510 ppb
20190.325 ppb82ND - 1.40 ppb
20200.396 ppb93ND - 1.64 ppb
20210.0963 ppb81ND - 0.770 ppb
20220.724 ppb84ND - 2.18 ppb
20230.153 ppb82ND - 0.610 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
2018-02-06JH1800784-DBP2ND
2018-02-06JH1800782-DBP2ND
2018-05-11JH1803129-DBP2ND
2018-05-11JH1803127-DBP2ND
2018-07-24JH1805816/17-DBP20.510 ppb
2018-07-24JH1805814/15-DBP2ND
2018-11-14JH1809056-DBP2ND
2018-11-14JH1809058-DBP2ND
2019-03-27JH1901801-DBP2ND
2019-03-27JH1901802-DBP2ND
2019-05-07JH1902717-DBP2ND
2019-05-07JH1902715-DBP2ND
2019-08-12JH1905662-DBP21.40 ppb
2019-08-12JH1905661-DBP21.20 ppb
2019-11-05JH1907889-DBP2ND
2019-11-05JH1907890-DBP9ND
2020-02-20JH2001134-DBP2ND
2020-02-20JH2001135-DBP2ND
2020-05-11JH2003039-DBP2ND
2020-05-11JH2003038-DBP2ND
2020-08-03JH2005439-DBP20.830 ppb
2020-08-03JH2005442-DBP21.09 ppb
2020-08-03JH2005436-DBP21.64 ppb
2020-11-03JH2008483-DBP2ND
2020-11-03JH2008481-DBP2ND
2021-02-01JH2100749-DBP2ND
2021-02-01JH2100751-DBP2ND
2021-05-10JH2103325-DBP2ND
2021-05-10JH2103323-DBP2ND
2021-08-16JH2107174-DBP20.770 ppb
2021-08-16JH2107176-DBP2ND
2021-11-08JH2110076-DBP2ND
2021-11-08JH2110078-DBP2ND
2022-02-10JH2201106-DBP21.82 ppb
2022-02-10JH2201108-DBP22.18 ppb
2022-05-11JH2203629-DBP2ND
2022-05-11JH2203631-DBP2ND
2022-08-15JH2206870-DBP21.01 ppb
2022-08-15JH2206869-DBP20.780 ppb
2022-11-07JH2209689-DBP2ND
2022-11-07JH2209591-DBP2ND
2023-02-06JH2300801-DBP2ND
2023-02-06JH2300803-DBP2ND
2023-05-08JH2303307-DBP2ND
2023-05-08JH2303309-DBP2ND
2023-08-07JH2306521-DBP20.610 ppb
2023-08-07JH2306523-DBP20.610 ppb
2023-11-14JH2310094-DBP2ND
2023-11-14JH2310096-DBP2ND