Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromoform

Winthrop Water

NOTE: Winthrop Water purchases water from Little River County Rda which is required to test for bromoform. Sample information shown below was taken by Little River County Rda.

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

 

56

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND60ND
2016ND80ND
2017ND80ND
2018ND80ND
2019ND80ND

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

NOTE: Winthrop Water purchases water from Little River County Rda which is required to test for bromoform. Sample information shown below was taken by Little River County Rda.

Date Lab ID Result
2014-01-0714008002902ND
2014-01-0714008003002ND
2014-04-0214093002602ND
2014-04-0214093002902ND
2014-07-0214184009102ND
2014-07-0214184009402ND
2014-07-0214184009001ND
2014-10-0614282005102ND
2014-10-0614282004802ND
2014-12-1514349000201ND
2014-12-1514349000301ND
2015-01-0615008009702ND
2015-01-0615008009102ND
2015-04-0715099006602ND
2015-04-0715099003802ND
2015-07-0615190007002ND
2015-07-0615190006501ND
2015-07-0615190006602ND
2015-10-0515281001602ND
2015-10-0515281001502ND
2016-01-0416007000802ND
2016-01-0416007000902ND
2016-05-2316147004902ND
2016-05-2316147005202ND
2016-07-0616189008402ND
2016-07-0616189008802ND
2016-07-0616189008502ND
2016-10-0316280000602ND
2016-10-0316280000902ND
2017-01-0417005002202ND
2017-01-0417005002802ND
2017-04-0317095003202ND
2017-04-0317095003802ND
2017-07-0417187002302ND
2017-07-0417187002402ND
2017-07-0417187002902ND
2017-10-0317278003302ND
2017-10-0317278002802ND
2018-01-0318004007902ND
2018-01-0318004007302ND
2018-04-0218095000402ND
2018-04-0218095000902ND
2018-07-0318186006902ND
2018-07-0418186008802ND
2018-07-0418186008902ND
2018-10-0318277004802ND
2018-10-0318277005202ND
2019-01-0819010007702ND
2019-01-0819010008002ND
2019-04-0219094003302ND
2019-04-0219094003702ND
2019-07-0919191002702ND
2019-07-0919191003002ND
2019-07-0919191003102ND
2019-10-0219276003102ND
2019-10-2819304000602ND