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EWG's Tap Water Database — 2021 UPDATE

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Dibromoacetic acid

St John Water District 1

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

 

216

Samples

0

Samples exceeding legal limit (MCL)

154

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.34 ppb5634ND - 3.80 ppb
20151.45 ppb3230ND - 2.20 ppb
20161.10 ppb3216ND - 5.30 ppb
20171.59 ppb3228ND - 4.60 ppb
20182.64 ppb3224ND - 8.10 ppb
20190.829 ppb3222ND - 1.90 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
2014-03-05201168804ND
2014-03-05201168805ND
2014-03-052011688061.30 ppb
2014-03-052011688081.30 ppb
2014-03-052011688091.40 ppb
2014-03-052011688101.50 ppb
2014-03-052011688111.40 ppb
2014-03-052011988071.60 ppb
2014-03-05201168804ND
2014-03-05201168805ND
2014-03-052011688061.30 ppb
2014-03-052011688081.30 ppb
2014-03-052011688091.40 ppb
2014-03-052011688101.50 ppb
2014-03-052011688111.40 ppb
2014-03-052011988071.60 ppb
2014-06-04204743001ND
2014-06-04204743002ND
2014-06-04204743003ND
2014-06-04204743004ND
2014-06-04204746001ND
2014-06-04204746002ND
2014-06-04204746003ND
2014-06-04204746004ND
2014-06-04204743001ND
2014-06-04204743002ND
2014-06-04204743003ND
2014-06-04204743004ND
2014-06-04204746001ND
2014-06-04204746002ND
2014-06-04204746003ND
2014-06-04204746004ND
2014-08-272086010012.00 ppb
2014-08-272086010022.30 ppb
2014-08-27208601003ND
2014-08-272086010041.80 ppb
2014-08-272086010012.00 ppb
2014-08-272086010022.30 ppb
2014-08-27208601003ND
2014-08-272086010041.80 ppb
2014-09-182095730013.80 ppb
2014-09-182095730023.20 ppb
2014-09-182095730033.20 ppb
2014-09-182095730043.70 ppb
2014-09-182095730013.80 ppb
2014-09-182095730023.20 ppb
2014-09-182095730033.20 ppb
2014-09-182095730043.70 ppb
2014-12-1020135260011.90 ppb
2014-12-1020135260022.70 ppb
2014-12-1020135260032.60 ppb
2014-12-1020135260041.80 ppb
2014-12-1020135260011.90 ppb
2014-12-1020135260022.70 ppb
2014-12-1020135260032.60 ppb
2014-12-1020135260041.80 ppb
2015-03-052016736001ND
2015-03-0520167360021.50 ppb
2015-03-0520167360031.20 ppb
2015-03-0520617360041.40 ppb
2015-03-052016736001ND
2015-03-0520167360021.50 ppb
2015-03-0520167360031.20 ppb
2015-03-0520617360041.40 ppb
2015-06-0420208930011.30 ppb
2015-06-0420208930021.50 ppb
2015-06-0420208930031.20 ppb
2015-06-0420208930040.830 ppb
2015-06-0420208930011.30 ppb
2015-06-0420208930021.50 ppb
2015-06-0420208930031.20 ppb
2015-06-0420208930040.830 ppb
2015-09-0220250960012.20 ppb
2015-09-0220250960022.00 ppb
2015-09-0220250960032.00 ppb
2015-09-0220250960042.10 ppb
2015-09-0220250960012.20 ppb
2015-09-0220250960022.00 ppb
2015-09-0220250960032.00 ppb
2015-09-0220250960042.10 ppb
2015-12-0920298280011.50 ppb
2015-12-0920298280021.80 ppb
2015-12-0920298280031.40 ppb
2015-12-0920298280041.20 ppb
2015-12-0920298280011.50 ppb
2015-12-0920298280021.80 ppb
2015-12-0920298280031.40 ppb
2015-12-0920298280041.20 ppb
2016-03-072033512001ND
2016-03-072033512002ND
2016-03-072033512003ND
2016-03-072033512004ND
2016-03-072033512001ND
2016-03-072033512002ND
2016-03-072033512003ND
2016-03-072033512004ND
2016-06-082037926001ND
2016-06-0820379260021.10 ppb
2016-06-082037926003ND
2016-06-082037926004ND
2016-06-082037926001ND
2016-06-0820379260021.10 ppb
2016-06-082037926003ND
2016-06-082037926004ND
2016-09-1420426760011.30 ppb
2016-09-1420426760025.30 ppb
2016-09-1420426760032.60 ppb
2016-09-142042676004ND
2016-09-1420426760011.30 ppb
2016-09-1420426760025.30 ppb
2016-09-1420426760032.60 ppb
2016-09-142042676004ND
2016-12-0720470370011.80 ppb
2016-12-0720470510011.90 ppb
2016-12-0720470560011.70 ppb
2016-12-0720470580011.90 ppb
2016-12-0720470370011.80 ppb
2016-12-0720470510011.90 ppb
2016-12-0720470560011.70 ppb
2016-12-0720470580011.90 ppb
2017-03-10353001530011.50 ppb
2017-03-10353001530021.50 ppb
2017-03-10353001530031.50 ppb
2017-03-1035300153004ND
2017-03-10353001530011.50 ppb
2017-03-10353001530021.50 ppb
2017-03-10353001530031.50 ppb
2017-03-1035300153004ND
2017-06-22353202310090.680 ppb
2017-06-22353202310101.10 ppb
2017-06-22353202310110.520 ppb
2017-06-22353202310120.690 ppb
2017-06-22353202310090.680 ppb
2017-06-22353202310101.10 ppb
2017-06-22353202310110.520 ppb
2017-06-22353202310120.690 ppb
2017-09-21353373950013.60 ppb
2017-09-21353373950023.50 ppb
2017-09-21353373950034.60 ppb
2017-09-2135337395004ND
2017-09-21353373950013.60 ppb
2017-09-21353373950023.50 ppb
2017-09-21353373950034.60 ppb
2017-09-2135337395004ND
2017-12-14353635500011.60 ppb
2017-12-14353635500021.80 ppb
2017-12-14353635500031.40 ppb
2017-12-14353635500041.50 ppb
2017-12-14353635500011.60 ppb
2017-12-14353635500021.80 ppb
2017-12-14353635500031.40 ppb
2017-12-14353635500041.50 ppb
2018-03-1535380540001ND
2018-03-1535380540002ND
2018-03-1535380540003ND
2018-03-1535380540004ND
2018-03-1535380540001ND
2018-03-1535380540002ND
2018-03-1535380540003ND
2018-03-1535380540004ND
2018-06-14353986520011.80 ppb
2018-06-14353986520021.80 ppb
2018-06-14353986520031.90 ppb
2018-06-14353986520041.80 ppb
2018-06-14353986520011.80 ppb
2018-06-14353986520021.80 ppb
2018-06-14353986520031.90 ppb
2018-06-14353986520041.80 ppb
2018-09-06354161430013.20 ppb
2018-09-06354161430023.20 ppb
2018-09-06354161430032.90 ppb
2018-09-06354161430042.20 ppb
2018-09-06354161430013.20 ppb
2018-09-06354161430023.20 ppb
2018-09-06354161430032.90 ppb
2018-09-06354161430042.20 ppb
2018-12-10354363570013.90 ppb
2018-12-10354363570028.10 ppb
2018-12-10354363570036.00 ppb
2018-12-10354363570045.50 ppb
2018-12-10354363570013.90 ppb
2018-12-10354363570028.10 ppb
2018-12-10354363570036.00 ppb
2018-12-10354363570045.50 ppb
2019-03-13354545570010.980 ppb
2019-03-13354545570020.990 ppb
2019-03-13354545570030.970 ppb
2019-03-13354545570040.750 ppb
2019-03-13354545570010.980 ppb
2019-03-13354545570020.990 ppb
2019-03-13354545570030.970 ppb
2019-03-13354545570040.750 ppb
2019-06-11354752880010.930 ppb
2019-06-11354752880020.910 ppb
2019-06-11354752880030.930 ppb
2019-06-1135475288004ND
2019-06-11354752880010.930 ppb
2019-06-11354752880020.910 ppb
2019-06-11354752880030.930 ppb
2019-06-1135475288004ND
2019-09-12354975890011.90 ppb
2019-09-12354975890021.70 ppb
2019-09-12354975890031.50 ppb
2019-09-12354975890041.70 ppb
2019-09-12354975890011.90 ppb
2019-09-12354975890021.70 ppb
2019-09-12354975890031.50 ppb
2019-09-12354975890041.70 ppb
2019-12-0935517591001ND
2019-12-0935517591002ND
2019-12-0935517591003ND
2019-12-0935517591004ND
2019-12-0935517591001ND
2019-12-0935517591002ND
2019-12-0935517591003ND
2019-12-0935517591004ND