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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Attleboro 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

 

214

Samples

0

Samples exceeding legal limit (MCL)

100

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.650 ppb128ND - 1.20 ppb
20152.96 ppb4030ND - 34.5 ppb
20160.657 ppb4224ND - 2.50 ppb
20170.279 ppb3816ND - 0.800 ppb
20180.226 ppb4212ND - 0.900 ppb
20190.228 ppb4012ND - 0.990 ppb

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 Result
2014-01-131.10 ppb
2014-01-131.10 ppb
2014-06-16ND
2014-06-16ND
2014-07-020.800 ppb
2014-07-020.800 ppb
2014-07-02ND
2014-07-02ND
2014-07-020.800 ppb
2014-07-020.800 ppb
2014-10-011.20 ppb
2014-10-011.20 ppb
2015-01-070.900 ppb
2015-01-070.900 ppb
2015-01-070.900 ppb
2015-01-070.900 ppb
2015-02-051.70 ppb
2015-02-051.70 ppb
2015-02-051.90 ppb
2015-02-051.90 ppb
2015-02-051.80 ppb
2015-02-051.80 ppb
2015-02-051.50 ppb
2015-02-051.50 ppb
2015-03-04ND
2015-03-04ND
2015-05-071.30 ppb
2015-05-071.30 ppb
2015-05-072.00 ppb
2015-05-072.00 ppb
2015-05-071.40 ppb
2015-05-071.40 ppb
2015-05-071.50 ppb
2015-05-071.50 ppb
2015-08-063.00 ppb
2015-08-063.00 ppb
2015-08-0634.5 ppb
2015-08-0634.5 ppb
2015-08-063.20 ppb
2015-08-063.20 ppb
2015-08-062.80 ppb
2015-08-062.80 ppb
2015-08-21ND
2015-08-21ND
2015-11-05ND
2015-11-05ND
2015-11-050.830 ppb
2015-11-050.830 ppb
2015-11-05ND
2015-11-05ND
2015-11-05ND
2015-11-05ND
2016-01-060.700 ppb
2016-01-060.700 ppb
2016-02-11ND
2016-02-11ND
2016-02-110.700 ppb
2016-02-110.700 ppb
2016-02-11ND
2016-02-11ND
2016-02-11ND
2016-02-11ND
2016-05-05ND
2016-05-05ND
2016-05-05ND
2016-05-05ND
2016-05-05ND
2016-05-05ND
2016-05-05ND
2016-05-05ND
2016-07-06ND
2016-07-06ND
2016-07-282.50 ppb
2016-07-282.50 ppb
2016-08-031.90 ppb
2016-08-031.90 ppb
2016-08-031.90 ppb
2016-08-031.90 ppb
2016-08-110.600 ppb
2016-08-110.600 ppb
2016-08-111.30 ppb
2016-08-111.30 ppb
2016-08-110.600 ppb
2016-08-110.600 ppb
2016-08-110.700 ppb
2016-08-110.700 ppb
2016-11-10ND
2016-11-10ND
2016-11-101.50 ppb
2016-11-101.50 ppb
2016-11-100.700 ppb
2016-11-100.700 ppb
2016-11-100.700 ppb
2016-11-100.700 ppb
2017-01-04ND
2017-01-04ND
2017-02-09ND
2017-02-09ND
2017-02-090.800 ppb
2017-02-090.800 ppb
2017-02-090.700 ppb
2017-02-090.700 ppb
2017-02-090.600 ppb
2017-02-090.600 ppb
2017-05-11ND
2017-05-11ND
2017-05-110.780 ppb
2017-05-110.780 ppb
2017-05-110.530 ppb
2017-05-110.530 ppb
2017-05-11ND
2017-05-11ND
2017-06-27ND
2017-06-27ND
2017-07-20ND
2017-07-20ND
2017-08-10ND
2017-08-10ND
2017-08-100.700 ppb
2017-08-100.700 ppb
2017-08-100.600 ppb
2017-08-100.600 ppb
2017-08-100.600 ppb
2017-08-100.600 ppb
2017-11-09ND
2017-11-09ND
2017-11-09ND
2017-11-09ND
2017-11-09ND
2017-11-09ND
2017-11-09ND
2017-11-09ND
2018-01-030.700 ppb
2018-01-030.700 ppb
2018-01-030.700 ppb
2018-01-030.700 ppb
2018-02-08ND
2018-02-08ND
2018-02-08ND
2018-02-08ND
2018-02-08ND
2018-02-08ND
2018-02-08ND
2018-02-08ND
2018-05-11ND
2018-05-11ND
2018-05-110.790 ppb
2018-05-110.790 ppb
2018-05-11ND
2018-05-11ND
2018-05-11ND
2018-05-11ND
2018-06-300.900 ppb
2018-06-300.900 ppb
2018-06-300.900 ppb
2018-06-300.900 ppb
2018-07-16ND
2018-07-16ND
2018-08-09ND
2018-08-09ND
2018-08-090.760 ppb
2018-08-090.760 ppb
2018-08-09ND
2018-08-09ND
2018-08-09ND
2018-08-09ND
2018-11-08ND
2018-11-08ND
2018-11-08ND
2018-11-08ND
2018-11-08ND
2018-11-08ND
2018-11-08ND
2018-11-08ND
2019-01-02ND
2019-01-02ND
2019-02-07ND
2019-02-07ND
2019-02-070.500 ppb
2019-02-070.500 ppb
2019-02-07ND
2019-02-07ND
2019-02-07ND
2019-02-07ND
2019-05-09ND
2019-05-09ND
2019-05-090.640 ppb
2019-05-090.640 ppb
2019-05-09ND
2019-05-09ND
2019-05-09ND
2019-05-09ND
2019-06-07ND
2019-06-07ND
2019-07-01ND
2019-07-01ND
2019-08-08ND
2019-08-08ND
2019-08-080.810 ppb
2019-08-080.810 ppb
2019-08-08ND
2019-08-08ND
2019-08-08ND
2019-08-08ND
2019-11-07ND
2019-11-07ND
2019-11-070.990 ppb
2019-11-070.990 ppb
2019-11-070.890 ppb
2019-11-070.890 ppb
2019-11-070.730 ppb
2019-11-070.730 ppb
2019-11-20ND
2019-11-20ND