Know Your Environment. Protect Your Health.

Dibromochloromethane

Highfill 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.

 

46

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.163 ppb81ND - 1.30 ppb
20190.417 ppb62ND - 1.30 ppb
20200.138 ppb81ND - 1.10 ppb
20210.638 ppb84ND - 1.50 ppb
20220.361 ppb82ND - 1.49 ppb
20231.03 ppb86ND - 1.96 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
2018-01-2418025005902ND
2018-01-2418025006002ND
2018-04-2318116008502ND
2018-04-2318116008602ND
2018-07-2518207008002ND
2018-07-2518207008102ND
2018-10-2318298011602ND
2018-10-23182980117021.30 ppb
2019-01-29190310144021.30 ppb
2019-01-29190310143021.20 ppb
2019-04-1719109001402ND
2019-04-1719109001302ND
2019-07-1619199008502ND
2019-07-1619199008602ND
2020-01-2220023005402ND
2020-01-2220023006302ND
2020-04-2020114012102ND
2020-04-2020114012002ND
2020-07-2120205009502ND
2020-07-2120205009602ND
2020-10-2020296009402ND
2020-10-20202960095021.10 ppb
2021-01-2021021008102ND
2021-01-2021021008202ND
2021-04-21211120093021.10 ppb
2021-04-21211120094021.20 ppb
2021-07-2021203011702ND
2021-07-2021203014202ND
2021-10-19212940151021.50 ppb
2021-10-19212940150021.30 ppb
2022-01-18220200027021.40 ppb
2022-01-1822020002602ND
2022-04-19O197243-THM-1ND
2022-04-19O197242-THM-1ND
2022-07-20O199790-THM-1ND
2022-07-20O199789-THM-1ND
2022-10-19O202810-THM-1ND
2022-10-19O202809-THM-11.49 ppb
2023-01-17O205372-THM-11.96 ppb
2023-01-17O205373-THM-11.36 ppb
2023-04-19O208053-THM-1ND
2023-04-19O208054-THM-1ND
2023-07-18O210903-THM-11.32 ppb
2023-07-18O210904-THM-11.06 ppb
2023-10-17O212992-THM-11.18 ppb
2023-10-17O212991-THM-11.36 ppb