Know Your Environment. Protect Your Health.

Dibromochloromethane

Kingsport 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.

 

147

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.523 ppb110.523 ppb
2019ND10ND
2020ND10ND
20210.0727 ppb453ND - 1.15 ppb
20220.213 ppb5611ND - 1.28 ppb
20230.0233 ppb431ND - 1.000 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 Result
2018-01-110.523 ppb
2019-01-10ND
2020-01-09ND
2021-01-11ND
2021-01-12ND
2021-01-12ND
2021-01-12ND
2021-01-12ND
2021-01-12ND
2021-01-12ND
2021-01-13ND
2021-01-13ND
2021-01-13ND
2021-01-13ND
2021-01-13ND
2021-04-13ND
2021-04-13ND
2021-04-13ND
2021-04-13ND
2021-04-15ND
2021-04-15ND
2021-04-15ND
2021-04-15ND
2021-04-15ND
2021-04-15ND
2021-04-15ND
2021-07-12ND
2021-07-12ND
2021-07-13ND
2021-07-14ND
2021-07-14ND
2021-07-14ND
2021-07-14ND
2021-07-14ND
2021-07-14ND
2021-07-14ND
2021-07-14ND
2021-10-11ND
2021-10-12ND
2021-10-12ND
2021-10-121.15 ppb
2021-10-131.06 ppb
2021-10-13ND
2021-10-13ND
2021-10-13ND
2021-10-13ND
2021-10-131.06 ppb
2021-10-13ND
2022-01-11ND
2022-01-11ND
2022-01-11ND
2022-01-11ND
2022-01-11ND
2022-01-11ND
2022-01-11ND
2022-01-11ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-04-11ND
2022-04-12ND
2022-04-12ND
2022-04-12ND
2022-04-12ND
2022-04-13ND
2022-04-13ND
2022-04-13ND
2022-04-14ND
2022-04-14ND
2022-04-14ND
2022-07-13ND
2022-07-13ND
2022-07-13ND
2022-07-131.08 ppb
2022-07-13ND
2022-07-13ND
2022-07-131.28 ppb
2022-07-141.13 ppb
2022-07-141.04 ppb
2022-07-141.04 ppb
2022-07-14ND
2022-10-11ND
2022-10-111.000 ppb
2022-10-111.01 ppb
2022-10-111.03 ppb
2022-10-111.20 ppb
2022-10-121.07 ppb
2022-10-121.05 ppb
2022-10-12ND
2022-10-12ND
2022-10-13ND
2023-01-05ND
2023-01-05ND
2023-01-05ND
2023-01-10ND
2023-01-10ND
2023-01-10ND
2023-01-10ND
2023-01-10ND
2023-01-10ND
2023-01-10ND
2023-01-10ND
2023-01-10ND
2023-01-10ND
2023-01-10ND
2023-01-10ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-10-09ND
2023-10-091.000 ppb
2023-10-10ND
2023-10-10ND
2023-10-10ND
2023-10-10ND
2023-10-10ND
2023-10-10ND
2023-10-10ND
2023-10-10ND