Know Your Environment. Protect Your Health.

Bromodichloromethane

Denton County Fresh Water Supply District 8-c

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.83 ppb42ND - 14.2 ppb
20193.55 ppb41ND - 14.2 ppb
20202.90 ppb41ND - 11.6 ppb
20213.20 ppb41ND - 12.8 ppb
20223.30 ppb41ND - 13.2 ppb
20233.60 ppb41ND - 14.4 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
2018-02-12Q1805953004ND
2018-02-12Q1805953001ND
2018-05-22Q18205870021.13 ppb
2018-09-25Q183825700114.2 ppb
2019-03-27Q1912759002ND
2019-03-27Q1912759005ND
2019-09-16Q1965020002ND
2019-09-16Q196502000314.2 ppb
2020-03-19Q2012019003ND
2020-03-19Q2012019005ND
2020-09-10Q2036109002ND
2020-09-10Q203610900311.6 ppb
2021-06-14Q2115442002ND
2021-06-14Q211544200312.8 ppb
2021-12-07Q2134437006ND
2021-12-15Q2135620001ND
2022-04-27Q2212615001ND
2022-07-27Q2221388002ND
2022-07-27Q222138800313.2 ppb
2022-07-27Q2221388004ND
2023-08-02Q2331447004ND
2023-08-02Q233144700514.4 ppb
2023-08-02Q2331447006ND
2023-11-06Q2347802002ND