Know Your Environment. Protect Your Health.

Bromodichloromethane

City of Richwood

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.

 

66

Samples

0

Samples exceeding legal limit (MCL)

49

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.72 ppb116ND - 9.20 ppb
20191.71 ppb116ND - 4.30 ppb
20203.32 ppb119ND - 7.00 ppb
20215.76 ppb11111.000 ppb - 8.30 ppb
20226.60 ppb118ND - 12.7 ppb
20234.98 ppb119ND - 9.00 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
2018-02-07AE12998ND
2018-02-07AE12967ND
2018-02-07AE130219.20 ppb
2018-04-05AE214142.20 ppb
2018-04-05AE21468ND
2018-04-05AE21466ND
2018-04-05AE214247.40 ppb
2018-07-12AE331265.70 ppb
2018-07-12AE33131ND
2018-10-30AE448682.70 ppb
2018-10-30AE448712.70 ppb
2019-01-09AE49225ND
2019-01-09AE49239ND
2019-02-12AE540532.20 ppb
2019-02-12AE54065ND
2019-02-12AE541384.00 ppb
2019-04-01AE606634.30 ppb
2019-04-01AE606644.30 ppb
2019-07-22AE75267ND
2019-07-22AE75273ND
2019-10-29AE878522.00 ppb
2019-10-29AE878532.00 ppb
2020-01-27AE953083.00 ppb
2020-01-27AE953153.00 ppb
2020-03-17AF03253ND
2020-03-17AF032693.60 ppb
2020-03-17AF03293ND
2020-04-06AF058623.10 ppb
2020-04-06AF058663.10 ppb
2020-07-02AF179677.00 ppb
2020-07-02AF179717.00 ppb
2020-10-15AF308073.40 ppb
2020-10-15AF308083.30 ppb
2021-01-11AF384933.60 ppb
2021-01-11AF384973.40 ppb
2021-04-08AF494987.50 ppb
2021-04-08AF494996.40 ppb
2021-04-08AF495645.90 ppb
2021-04-08AF495683.80 ppb
2021-04-08AF495701.000 ppb
2021-07-21AF627948.30 ppb
2021-07-21AF627968.00 ppb
2021-10-14AF735157.40 ppb
2021-10-14AF735178.10 ppb
2022-01-18AF804236.60 ppb
2022-01-18AF804246.00 ppb
2022-03-28AF907305.50 ppb
2022-03-28AF90732ND
2022-03-28AF90734ND
2022-05-09AF959165.80 ppb
2022-05-09AF95915ND
2022-09-12AG1243611.9 ppb
2022-09-12AG1244011.9 ppb
2022-10-13AG1699912.2 ppb
2022-10-13AG1700012.7 ppb
2023-01-19AG252325.30 ppb
2023-01-19AG252365.30 ppb
2023-01-19AG25294ND
2023-01-19AG25296ND
2023-01-19AG253064.10 ppb
2023-04-03AG350859.00 ppb
2023-04-03AG350869.00 ppb
2023-09-12AG559456.50 ppb
2023-09-12AG559537.10 ppb
2023-10-24AG608201.10 ppb
2023-10-24AG608217.40 ppb