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EWG's Tap Water Database — 2021 UPDATE

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Dibromoacetic acid

North Lake St. John Water System

Dibromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids 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)

30

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
2016ND160ND
20170.0388 ppb162ND - 0.310 ppb
20180.774 ppb1612ND - 1.30 ppb
20191.08 ppb16160.650 ppb - 1.50 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.04 ppb

The EWG Health Guideline of 0.04 ppb for dibromoacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-121278134ND
2014-02-121278133ND
2014-02-121278134ND
2014-02-121278133ND
2014-05-141302303ND
2014-05-141302304ND
2014-05-141302304ND
2014-05-141302303ND
2014-08-141326986ND
2014-08-141326987ND
2014-08-141326987ND
2014-08-141326986ND
2014-11-171351645ND
2014-11-171351646ND
2014-11-171351646ND
2014-11-171351645ND
2015-02-171373942ND
2015-02-171373943ND
2015-02-171373943ND
2015-02-171373942ND
2015-05-191396683ND
2015-05-191396684ND
2015-05-191396684ND
2015-05-191396683ND
2015-08-181420549ND
2015-08-181420548ND
2015-08-181420549ND
2015-08-181420548ND
2015-11-171445097ND
2015-11-171445098ND
2015-11-171445098ND
2015-11-171445097ND
2016-02-171468293ND
2016-02-171468294ND
2016-02-171468294ND
2016-02-171468293ND
2016-05-171492498ND
2016-05-171492497ND
2016-05-171492498ND
2016-05-171492497ND
2016-08-161516810ND
2016-08-161516811ND
2016-08-161516811ND
2016-08-161516810ND
2016-11-141541726ND
2016-11-141541727ND
2016-11-141541727ND
2016-11-141541726ND
2017-02-0935294548030ND
2017-02-0935294548029ND
2017-02-0935294548029ND
2017-02-0935294548030ND
2017-05-0135309911003ND
2017-05-0135309911003ND
2017-05-0135309911004ND
2017-05-0135309911004ND
2017-08-2235332046005ND
2017-08-22353320460060.310 ppb
2017-08-2235332046005ND
2017-08-22353320460060.310 ppb
2017-11-0835347267002ND
2017-11-0835347267001ND
2017-11-0835347267001ND
2017-11-0835347267002ND
2018-02-2035375735002ND
2018-02-2035375735001ND
2018-02-2035375735002ND
2018-02-2035375735001ND
2018-05-09353914960020.640 ppb
2018-05-09353914960020.640 ppb
2018-05-09353914960010.860 ppb
2018-05-09353914960010.860 ppb
2018-08-01354082450021.30 ppb
2018-08-01354082450011.30 ppb
2018-08-01354082450011.30 ppb
2018-08-01354082450021.30 ppb
2018-11-27354336130011.10 ppb
2018-11-27354336130020.990 ppb
2018-11-27354336130011.10 ppb
2018-11-27354336130020.990 ppb
2019-02-13354485000021.20 ppb
2019-02-13354485000011.20 ppb
2019-02-13354485000011.20 ppb
2019-02-13354485000021.20 ppb
2019-05-07354677170021.30 ppb
2019-05-07354677170021.30 ppb
2019-05-07354677170010.710 ppb
2019-05-07354677170010.710 ppb
2019-08-21354926780021.50 ppb
2019-08-21354926780011.30 ppb
2019-08-21354926780011.30 ppb
2019-08-21354926780021.50 ppb
2019-11-13355126850010.650 ppb
2019-11-13355126850020.740 ppb
2019-11-13355126850010.650 ppb
2019-11-13355126850020.740 ppb