Know Your Environment. Protect Your Health.

Dibromochloromethane

Clarence Water System

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.

 

66

Samples

0

Samples exceeding legal limit (MCL)

41

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.129 ppb164ND - 0.520 ppb
20190.460 ppb164ND - 2.70 ppb
20200.919 ppb880.400 ppb - 1.40 ppb
20212.94 ppb10101.50 ppb - 4.00 ppb
20222.92 ppb880.680 ppb - 4.40 ppb
20231.28 ppb87ND - 2.60 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
2018-03-1535380709001ND
2018-03-1535380709002ND
2018-03-1535380709002ND
2018-03-1535380709001ND
2018-06-2535401080002ND
2018-06-2535401080001ND
2018-06-2535401080002ND
2018-06-2535401080001ND
2018-09-1835418774001ND
2018-09-1835418774001ND
2018-09-2635420660001ND
2018-09-2635420660001ND
2018-12-14354384270010.510 ppb
2018-12-14354384270010.510 ppb
2018-12-14354384270020.520 ppb
2018-12-14354384270020.520 ppb
2019-03-0735453401001ND
2019-03-0735453401002ND
2019-03-0735453401001ND
2019-03-0735453401002ND
2019-06-24354784110012.70 ppb
2019-06-2435478411002ND
2019-06-24354784110012.70 ppb
2019-06-2435478411002ND
2019-09-1235497547002ND
2019-09-1235497547001ND
2019-09-1235497547001ND
2019-09-1235497547002ND
2019-12-1735520106001ND
2019-12-17355201060020.980 ppb
2019-12-17355201060020.980 ppb
2019-12-1735520106001ND
2020-03-26355401760020.400 ppb
2020-03-26355401760010.430 ppb
2020-06-30355600320011.40 ppb
2020-06-30355600320021.30 ppb
2020-09-24355805950011.000 ppb
2020-09-24355805950020.990 ppb
2020-12-16356000580020.840 ppb
2020-12-16356000580010.990 ppb
2021-03-26356219520013.90 ppb
2021-03-26356219520022.20 ppb
2021-06-11356403160011.70 ppb
2021-06-11356403160021.50 ppb
2021-09-27356671780013.40 ppb
2021-09-27356671780023.20 ppb
2021-12-03356819280013.70 ppb
2021-12-03356819280024.00 ppb
2021-12-23356871710012.80 ppb
2021-12-23356871710023.00 ppb
2022-03-29357073510012.80 ppb
2022-03-29357073510022.80 ppb
2022-06-16357261480022.10 ppb
2022-06-16357261480010.680 ppb
2022-09-26357494450014.20 ppb
2022-09-26357494450024.40 ppb
2022-12-12357674640013.10 ppb
2022-12-12357674640023.30 ppb
2023-03-2235788159001ND
2023-03-22357881590020.650 ppb
2023-06-26358099950011.10 ppb
2023-06-26358099950021.50 ppb
2023-09-18358297070011.10 ppb
2023-09-18358297070021.70 ppb
2023-12-06358470610011.60 ppb
2023-12-06358470610022.60 ppb