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EWG's Tap Water Database — 2019 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.

 

96

Samples

0

Samples exceeding legal limit (MCL)

41

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.397 ppb168ND - 0.960 ppb
20130.694 ppb16160.520 ppb - 0.960 ppb
20140.516 ppb1610ND - 1.20 ppb
20150.248 ppb167ND - 0.630 ppb
20160.0544 ppb161ND - 0.870 ppb
2017ND160ND

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
2012-01-31573104TFND
2012-01-31573105TFND
2012-01-31573106TFND
2012-01-31573103TFND
2012-04-17577811TFND
2012-04-17577810TFND
2012-04-17577809TFND
2012-04-17577808TFND
2012-07-23582427TF0.690 ppb
2012-07-23582426TF0.720 ppb
2012-07-23582425TF0.770 ppb
2012-07-23582424TF0.680 ppb
2012-10-30587377TF0.870 ppb
2012-10-30587375TF0.790 ppb
2012-10-30587374TF0.870 ppb
2012-10-30587376TF0.960 ppb
2013-01-28591896TF0.720 ppb
2013-01-28591899TF0.690 ppb
2013-01-28591897TF0.680 ppb
2013-01-28591898TF0.700 ppb
2013-04-22594977TF0.550 ppb
2013-04-22594978TF0.550 ppb
2013-04-22594976TF0.520 ppb
2013-04-22594979TF0.660 ppb
2013-07-23599478TF0.860 ppb
2013-07-23599477TF0.960 ppb
2013-07-23599476TF0.810 ppb
2013-07-23599475TF0.890 ppb
2013-11-25605922TF0.610 ppb
2013-11-25605921TF0.620 ppb
2013-11-25605920TF0.640 ppb
2013-11-25605923TF0.650 ppb
2014-02-1060099ND
2014-02-1060102ND
2014-02-1160133ND
2014-02-1160134ND
2014-05-191172371.20 ppb
2014-05-19117238ND
2014-05-191172361.10 ppb
2014-05-191172351.20 ppb
2014-08-261820250.940 ppb
2014-08-261820260.850 ppb
2014-08-261820270.720 ppb
2014-08-261820240.630 ppb
2014-11-17232991ND
2014-11-172329940.500 ppb
2014-11-172329660.540 ppb
2014-11-172329970.580 ppb
2015-02-09277213ND
2015-02-09277210ND
2015-02-09277211ND
2015-02-09277212ND
2015-05-043285350.630 ppb
2015-05-043285360.630 ppb
2015-05-043285380.570 ppb
2015-05-04328537ND
2015-08-03378373ND
2015-08-033783700.510 ppb
2015-08-033783710.560 ppb
2015-08-033783720.520 ppb
2015-11-17428117ND
2015-11-17428114ND
2015-11-174281160.540 ppb
2015-11-17428115ND
2016-02-154939920.870 ppb
2016-02-15493991ND
2016-02-15493990ND
2016-02-15493989ND
2016-05-10545044ND
2016-05-10545045ND
2016-05-10545043ND
2016-05-10545042ND
2016-08-08600110ND
2016-08-08600113ND
2016-08-08600112ND
2016-08-08600111ND
2016-11-07656947ND
2016-11-07656946ND
2016-11-07656948ND
2016-11-07656949ND
2017-02-13708541ND
2017-02-13708543ND
2017-02-13708542ND
2017-02-13708540ND
2017-05-09759555ND
2017-05-09759556ND
2017-05-09759523ND
2017-05-09759554ND
2017-08-07814751ND
2017-08-07814748ND
2017-08-07814749ND
2017-08-07814750ND
2017-11-13878110ND
2017-11-13878112ND
2017-11-13878111ND
2017-11-13878109ND