Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromoform

Longview Water Department

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.

MORE ABOUT THIS CONTAMINANT

 

97

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND160ND
2015ND160ND
2016ND170ND
2017ND160ND
2018ND160ND
2019ND160ND

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
2014-03-1023833ND
2014-03-1023832ND
2014-03-1023831ND
2014-03-1023834ND
2014-05-1247232ND
2014-05-1247233ND
2014-05-1247231ND
2014-05-1247234ND
2014-08-1184591ND
2014-08-1184593ND
2014-08-1184592ND
2014-08-1184594ND
2014-12-1842063ND
2014-12-1842062ND
2014-12-1842064ND
2014-12-1842061ND
2015-03-0422194ND
2015-03-0422192ND
2015-03-0422191ND
2015-03-0422193ND
2015-05-1953662ND
2015-05-1953661ND
2015-05-1953663ND
2015-06-2569151ND
2015-09-2305772ND
2015-09-2305773ND
2015-09-2305771ND
2015-09-2305774ND
2015-12-0337794ND
2015-12-0337792ND
2015-12-0337791ND
2015-12-0337793ND
2016-02-23ND
2016-02-23ND
2016-02-23ND
2016-02-23ND
2016-05-25ND
2016-06-21ND
2016-06-21ND
2016-06-21ND
2016-06-21ND
2016-09-27ND
2016-09-27ND
2016-09-27ND
2016-09-27ND
2016-11-22ND
2016-11-22ND
2016-11-22ND
2016-11-22ND
2017-03-09ND
2017-03-09ND
2017-03-09ND
2017-03-09ND
2017-07-17ND
2017-07-17ND
2017-07-17ND
2017-07-17ND
2017-09-07ND
2017-09-07ND
2017-09-07ND
2017-09-07ND
2017-12-21ND
2017-12-21ND
2017-12-21ND
2017-12-21ND
2018-03-13ND
2018-03-13ND
2018-03-13ND
2018-03-13ND
2018-06-21ND
2018-06-21ND
2018-06-21ND
2018-06-21ND
2018-09-04ND
2018-09-04ND
2018-09-04ND
2018-09-04ND
2018-12-06ND
2018-12-06ND
2018-12-06ND
2018-12-06ND
2019-03-18ND
2019-03-18ND
2019-03-18ND
2019-03-18ND
2019-06-19ND
2019-06-19ND
2019-06-19ND
2019-06-19ND
2019-09-16ND
2019-09-16ND
2019-09-16ND
2019-09-16ND
2019-12-09ND
2019-12-09ND
2019-12-09ND
2019-12-09ND