Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromoform

Livingston County Public Water Supply District 4

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

9

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.625 ppb21ND - 1.25 ppb
20150.345 ppb21ND - 0.690 ppb
20161.61 ppb111.61 ppb
20171.09 ppb111.09 ppb
20180.860 ppb220.550 ppb - 1.17 ppb
2019ND10ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-07-15AC30014ND
2014-08-01AC307931.25 ppb
2015-07-06AC553150.690 ppb
2015-07-22AC54384ND
2016-07-20AC797511.61 ppb
2017-07-19AD014881.09 ppb
2018-07-06AD294830.550 ppb
2018-07-30AD292551.17 ppb
2019-07-17AD51875ND