Know Your Environment. Protect Your Health.

Dibromochloromethane

Chester Water 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.

 

192

Samples

0

Samples exceeding legal limit (MCL)

34

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND320ND
20190.291 ppb328ND - 1.60 ppb
20200.425 ppb327ND - 2.40 ppb
20210.341 ppb3210ND - 1.30 ppb
20220.653 ppb328ND - 2.90 ppb
20230.0375 ppb321ND - 1.20 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
2018-02-082294360003ND
2018-02-082294360002ND
2018-02-082294360001ND
2018-02-082294360005ND
2018-02-082294360006ND
2018-02-082294360008ND
2018-02-082294360007ND
2018-02-082294360004ND
2018-05-082314159003ND
2018-05-082314159002ND
2018-05-082314159001ND
2018-05-082314159005ND
2018-05-082314159006ND
2018-05-082314159008ND
2018-05-082314159007ND
2018-05-082314159004ND
2018-08-102331907003ND
2018-08-102331907002ND
2018-08-102331907001ND
2018-08-102331907005ND
2018-08-102331907006ND
2018-08-102331907008ND
2018-08-102331907007ND
2018-08-102331907004ND
2018-11-072349357003ND
2018-11-072349357002ND
2018-11-072349357001ND
2018-11-072349357006ND
2018-11-072349357008ND
2018-11-072349357007ND
2018-11-072349357004ND
2018-11-082349357005ND
2019-02-123016801003ND
2019-02-123016801002ND
2019-02-123016801001ND
2019-02-123016801005ND
2019-02-123016801006ND
2019-02-123016801008ND
2019-02-123016801007ND
2019-02-123016801004ND
2019-05-163034622003ND
2019-05-163034622002ND
2019-05-163034622001ND
2019-05-163034622005ND
2019-05-163034622006ND
2019-05-163034622008ND
2019-05-163034622007ND
2019-05-163034622004ND
2019-08-0730509260031.000 ppb
2019-08-0730509260021.20 ppb
2019-08-0730509260011.10 ppb
2019-08-0730509260051.10 ppb
2019-08-0730509260071.20 ppb
2019-08-0730509260061.000 ppb
2019-08-0730509260041.10 ppb
2019-08-1230515280011.60 ppb
2019-11-073068994003ND
2019-11-073068994002ND
2019-11-073068994001ND
2019-11-073068994005ND
2019-11-073068994006ND
2019-11-073068994008ND
2019-11-073068994007ND
2019-11-073068994004ND
2020-02-11ND
2020-02-11ND
2020-02-11ND
2020-02-11ND
2020-02-11ND
2020-02-11ND
2020-02-11ND
2020-02-11ND
2020-05-08ND
2020-05-08ND
2020-05-08ND
2020-05-08ND
2020-05-08ND
2020-05-08ND
2020-05-08ND
2020-05-08ND
2020-08-072.40 ppb
2020-08-07ND
2020-08-071.90 ppb
2020-08-071.80 ppb
2020-08-071.50 ppb
2020-08-072.10 ppb
2020-08-072.00 ppb
2020-08-071.90 ppb
2020-11-12ND
2020-11-12ND
2020-11-12ND
2020-11-12ND
2020-11-12ND
2020-11-12ND
2020-11-12ND
2020-11-12ND
2021-02-091.10 ppb
2021-02-091.10 ppb
2021-02-091.10 ppb
2021-02-091.000 ppb
2021-02-09ND
2021-02-091.20 ppb
2021-02-091.10 ppb
2021-02-09ND
2021-05-07ND
2021-05-07ND
2021-05-07ND
2021-05-07ND
2021-05-07ND
2021-05-07ND
2021-05-07ND
2021-05-07ND
2021-08-10ND
2021-08-101.000 ppb
2021-08-101.000 ppb
2021-08-10ND
2021-08-101.000 ppb
2021-08-101.30 ppb
2021-08-10ND
2021-08-10ND
2021-11-12ND
2021-11-12ND
2021-11-12ND
2021-11-12ND
2021-11-12ND
2021-11-12ND
2021-11-12ND
2021-11-12ND
2022-02-08ND
2022-02-08ND
2022-02-08ND
2022-02-08ND
2022-02-08ND
2022-02-08ND
2022-02-08ND
2022-02-08ND
2022-05-09ND
2022-05-09ND
2022-05-09ND
2022-05-09ND
2022-05-09ND
2022-05-09ND
2022-05-09ND
2022-05-09ND
2022-08-092.20 ppb
2022-08-092.80 ppb
2022-08-092.60 ppb
2022-08-092.50 ppb
2022-08-092.80 ppb
2022-08-092.90 ppb
2022-08-092.60 ppb
2022-08-092.50 ppb
2022-11-08ND
2022-11-08ND
2022-11-08ND
2022-11-08ND
2022-11-08ND
2022-11-08ND
2022-11-08ND
2022-11-08ND
2023-02-07ND
2023-02-07ND
2023-02-07ND
2023-02-07ND
2023-02-07ND
2023-02-07ND
2023-02-07ND
2023-02-07ND
2023-05-07ND
2023-05-07ND
2023-05-07ND
2023-05-07ND
2023-05-07ND
2023-05-07ND
2023-05-08ND
2023-05-08ND
2023-08-081.20 ppb
2023-08-08ND
2023-08-08ND
2023-08-08ND
2023-08-08ND
2023-08-08ND
2023-08-08ND
2023-08-08ND
2023-11-07ND
2023-11-07ND
2023-11-07ND
2023-11-07ND
2023-11-07ND
2023-11-07ND
2023-11-07ND
2023-11-07ND