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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Gardner

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

20

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.516 ppb1610ND - 1.20 ppb
20150.248 ppb167ND - 0.630 ppb
20160.0544 ppb161ND - 0.870 ppb
2017ND160ND
20180.181 ppb163ND - 0.990 ppb
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
2014-02-1060102ND
2014-02-1060099ND
2014-02-1160134ND
2014-02-1160133ND
2014-05-19117238ND
2014-05-191172371.20 ppb
2014-05-191172361.10 ppb
2014-05-191172351.20 ppb
2014-08-261820250.940 ppb
2014-08-261820240.630 ppb
2014-08-261820260.850 ppb
2014-08-261820270.720 ppb
2014-11-172329970.580 ppb
2014-11-172329940.500 ppb
2014-11-17232991ND
2014-11-172329660.540 ppb
2015-02-09277213ND
2015-02-09277212ND
2015-02-09277211ND
2015-02-09277210ND
2015-05-043285350.630 ppb
2015-05-043285360.630 ppb
2015-05-043285380.570 ppb
2015-05-04328537ND
2015-08-03378373ND
2015-08-033783720.520 ppb
2015-08-033783710.560 ppb
2015-08-033783700.510 ppb
2015-11-17428117ND
2015-11-174281160.540 ppb
2015-11-17428115ND
2015-11-17428114ND
2016-02-15493990ND
2016-02-15493989ND
2016-02-15493991ND
2016-02-154939920.870 ppb
2016-05-10545045ND
2016-05-10545044ND
2016-05-10545043ND
2016-05-10545042ND
2016-08-08600113ND
2016-08-08600112ND
2016-08-08600111ND
2016-08-08600110ND
2016-11-07656946ND
2016-11-07656949ND
2016-11-07656948ND
2016-11-07656947ND
2017-02-13708543ND
2017-02-13708542ND
2017-02-13708541ND
2017-02-13708540ND
2017-05-09759556ND
2017-05-09759555ND
2017-05-09759554ND
2017-05-09759523ND
2017-08-07814749ND
2017-08-07814748ND
2017-08-07814750ND
2017-08-07814751ND
2017-11-13878112ND
2017-11-13878111ND
2017-11-13878110ND
2017-11-13878109ND
2018-02-13908270ND
2018-02-13908269ND
2018-02-13908268ND
2018-02-13908267ND
2018-05-14971024ND
2018-05-14971025ND
2018-05-14971027ND
2018-05-14971026ND
2018-08-1310254310.940 ppb
2018-08-1310254300.960 ppb
2018-08-1310254290.990 ppb
2018-08-131025428ND
2018-11-131077374ND
2018-11-131077373ND
2018-11-131077372ND
2018-11-131077371ND
2019-02-111120372ND
2019-02-111120371ND
2019-02-111120373ND
2019-02-111120374ND
2019-05-131157877ND
2019-05-131157876ND
2019-05-131157875ND
2019-05-131157874ND
2019-08-131223574ND
2019-08-131223573ND
2019-08-131223572ND
2019-08-131223571ND
2019-11-121275022ND
2019-11-121275025ND
2019-11-121275024ND
2019-11-121275023ND