Know Your Environment. Protect Your Health.

Bromodichloromethane

Montrose Boydell Water System

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

35

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.47 ppb98ND - 9.70 ppb
20191.40 ppb65ND - 1.70 ppb
20203.85 ppb87ND - 9.30 ppb
20212.12 ppb96ND - 6.20 ppb
20225.27 ppb86ND - 24.8 ppb
20230.799 ppb83ND - 3.88 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
2018-01-09180100001011.30 ppb
2018-01-09180100002011.60 ppb
2018-04-10181020028021.70 ppb
2018-04-10181020029021.70 ppb
2018-07-09181930073022.10 ppb
2018-07-09181930074022.10 ppb
2018-10-0918284000801ND
2018-10-09182840009022.00 ppb
2018-10-09182840007029.70 ppb
2019-02-26190590022021.70 ppb
2019-02-26190590023021.70 ppb
2019-08-06192200145021.70 ppb
2019-08-06192200146021.70 ppb
2019-10-07192830045021.60 ppb
2019-10-0719283004602ND
2020-01-29200300048022.30 ppb
2020-01-29200300047022.70 ppb
2020-04-20201140078023.60 ppb
2020-04-20201140079023.00 ppb
2020-07-2120204002502ND
2020-07-21202040026022.50 ppb
2020-10-20202960133027.40 ppb
2020-10-20202960132029.30 ppb
2021-01-12210140042023.80 ppb
2021-01-12210140041024.10 ppb
2021-04-20211120064021.40 ppb
2021-04-20211120063021.30 ppb
2021-07-2021203006202ND
2021-07-20212030063022.30 ppb
2021-10-1221287006102ND
2021-10-1221287005901ND
2021-10-12212870060026.20 ppb
2022-01-1122013011602ND
2022-01-112201301170224.8 ppb
2022-04-19O197139-THM-11.44 ppb
2022-04-19O197138-THM-11.56 ppb
2022-07-20O199886-THM-12.43 ppb
2022-07-20O199887-THM-15.15 ppb
2022-10-18O202984-THM-1ND
2022-10-18O202985-THM-16.77 ppb
2023-01-10O205108-THM-13.88 ppb
2023-01-10O205107-THM-11.46 ppb
2023-04-24O208300-THM-1ND
2023-04-24O208301-THM-1ND
2023-07-19O210740-THM-11.05 ppb
2023-07-19O210741-THM-1ND
2023-10-18O213097-THM-1ND
2023-10-18O213098-THM-1ND