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EWG's Tap Water Database — 2021 UPDATE

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Dibromoacetic acid

City of Watsonville

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

 

192

Samples

0

Samples exceeding legal limit (MCL)

98

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.356 ppb329ND - 1.50 ppb
20150.713 ppb3216ND - 1.80 ppb
20161.15 ppb3216ND - 4.60 ppb
20170.678 ppb3213ND - 2.80 ppb
20181.74 ppb3220ND - 4.30 ppb
20191.59 ppb3224ND - 4.70 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
2014-02-199590-801-13101.30 ppb
2014-02-199590-802-1030ND
2014-02-199590-803-0945ND
2014-02-199590-804-1145ND
2014-02-199590-805-0850ND
2014-02-199590-806-1345ND
2014-02-199590-807-1125ND
2014-02-199590-808-0915ND
2014-05-219590-801-1000ND
2014-05-219590-802-0915ND
2014-05-219590-803-0845ND
2014-05-219590-804-0945ND
2014-05-219590-805-08091.30 ppb
2014-05-219590-806-10201.10 ppb
2014-05-219590-807-0930ND
2014-05-219590-808-0828ND
2014-08-139590-801-1110ND
2014-08-139590-802-0950ND
2014-08-139590-803-0920ND
2014-08-139590-804-1040ND
2014-08-139590-805-0815ND
2014-08-139590-806-1145ND
2014-08-139590-807-10201.30 ppb
2014-08-139590-808-0845ND
2014-11-129590-801-11451.40 ppb
2014-11-129590-802-10001.20 ppb
2014-11-129590-803-09401.20 ppb
2014-11-129590-804-1045ND
2014-11-129590-805-09001.50 ppb
2014-11-129590-806-12151.10 ppb
2014-11-129590-807-1025ND
2014-11-129590-808-0920ND
2015-02-099590-801-11501.50 ppb
2015-02-099590-802-1035ND
2015-02-099590-803-1010ND
2015-02-099590-804-11201.50 ppb
2015-02-099590-805-09201.30 ppb
2015-02-099590-806-1210ND
2015-02-099590-807-11001.50 ppb
2015-02-099590-808-0945ND
2015-05-139590-801-11101.20 ppb
2015-05-139590-802-10001.20 ppb
2015-05-139590-803-0930ND
2015-05-139590-804-10201.20 ppb
2015-05-139590-805-08301.40 ppb
2015-05-139590-806-11351.30 ppb
2015-05-139590-807-10501.20 ppb
2015-05-139590-808-0900ND
2015-08-129590-801-1130ND
2015-08-129590-802-1015ND
2015-08-129590-803-09451.50 ppb
2015-08-129590-804-1100ND
2015-08-129590-805-08551.70 ppb
2015-08-129590-806-13001.70 ppb
2015-08-129590-807-1040ND
2015-08-129590-808-0930ND
2015-11-099590-801-12501.40 ppb
2015-11-099590-802-11301.40 ppb
2015-11-099590-803-1100ND
2015-11-099590-804-1230ND
2015-11-099590-805-10051.80 ppb
2015-11-099590-806-1310ND
2015-11-099590-807-1200ND
2015-11-099590-808-1035ND
2016-02-109590-801-1150ND
2016-02-109590-802-10451.20 ppb
2016-02-109590-803-1010ND
2016-02-109590-804-11301.10 ppb
2016-02-109590-805-0900ND
2016-02-109590-806-1215ND
2016-02-109590-807-11101.20 ppb
2016-02-109590-808-0930ND
2016-05-239590-801-1130ND
2016-05-239590-802-1030ND
2016-05-239590-803-0930ND
2016-05-239590-804-1105ND
2016-05-239590-805-08451.30 ppb
2016-05-239590-806-1155ND
2016-05-239590-807-1050ND
2016-05-239590-808-0905ND
2016-08-179590-801-1300ND
2016-08-179590-802-11304.60 ppb
2016-08-179590-803-10304.00 ppb
2016-08-179590-804-13304.20 ppb
2016-08-179590-805-09152.70 ppb
2016-08-179590-806-13503.20 ppb
2016-08-179590-807-12304.00 ppb
2016-08-179590-808-10001.10 ppb
2016-11-099590-801-12301.50 ppb
2016-11-099590-802-10151.40 ppb
2016-11-099590-803-0950ND
2016-11-099590-804-12001.40 ppb
2016-11-099590-805-09052.90 ppb
2016-11-099590-806-12501.000 ppb
2016-11-099590-807-1050ND
2016-11-099590-808-0930ND
2017-02-279590-801-1215ND
2017-02-279590-802-1015ND
2017-02-279590-803-0945ND
2017-02-279590-804-1115ND
2017-02-279590-805-0845ND
2017-02-279590-806-1235ND
2017-02-279590-807-1045ND
2017-02-279590-808-0915ND
2017-05-319590-801-1130ND
2017-05-319590-802-1025ND
2017-05-319590-803-1000ND
2017-05-319590-804-1110ND
2017-05-319590-805-09001.70 ppb
2017-05-319590-806-11501.20 ppb
2017-05-319590-807-1050ND
2017-05-319590-808-0935ND
2017-08-169590-801-1255ND
2017-08-169590-802-11501.60 ppb
2017-08-169590-803-10402.80 ppb
2017-08-169590-804-1220ND
2017-08-169590-805-0950ND
2017-08-169590-806-1330ND
2017-08-169590-807-12401.30 ppb
2017-08-169590-808-10202.40 ppb
2017-11-149590-801-12001.30 ppb
2017-11-149590-802-10352.00 ppb
2017-11-149590-803-10101.40 ppb
2017-11-149590-804-11101.70 ppb
2017-11-149590-805-09201.000 ppb
2017-11-149590-806-1230ND
2017-11-149590-807-11301.60 ppb
2017-11-149590-808-09501.70 ppb
2018-02-149590-801-1300ND
2018-02-149590-802-1200ND
2018-02-149590-803-11401.000 ppb
2018-02-149590-804-1240ND
2018-02-149590-805-11001.10 ppb
2018-02-149590-806-13151.000 ppb
2018-02-149590-807-1220ND
2018-02-149590-808-1120ND
2018-05-099590-801-1410ND
2018-05-099590-802-1310ND
2018-05-099590-803-1240ND
2018-05-099590-804-1350ND
2018-05-099590-805-12001.60 ppb
2018-05-099590-806-1440ND
2018-05-099590-807-1330ND
2018-05-099590-808-1220ND
2018-08-229590-801-10103.80 ppb
2018-08-229590-802-10403.80 ppb
2018-08-229590-803-11104.30 ppb
2018-08-229590-804-09203.60 ppb
2018-08-229590-805-12001.60 ppb
2018-08-229590-806-08302.90 ppb
2018-08-229590-807-09454.00 ppb
2018-08-229590-808-11301.20 ppb
2018-11-139590-801-12103.60 ppb
2018-11-139590-802-10453.70 ppb
2018-11-139590-803-10154.00 ppb
2018-11-139590-804-11003.60 ppb
2018-11-139590-805-09301.40 ppb
2018-11-139590-806-12303.50 ppb
2018-11-139590-807-11303.70 ppb
2018-11-139590-808-10002.30 ppb
2019-02-209590-801-1100ND
2019-02-209590-802-0955ND
2019-02-209590-803-0935ND
2019-02-209590-804-10401.10 ppb
2019-02-209590-805-08253.00 ppb
2019-02-209590-806-1125ND
2019-02-209590-807-10201.20 ppb
2019-02-209590-808-0915ND
2019-05-089590-801-1000ND
2019-05-089590-802-09001.20 ppb
2019-05-089590-803-08451.40 ppb
2019-05-089590-804-09401.40 ppb
2019-05-089590-805-08004.70 ppb
2019-05-089590-806-10301.20 ppb
2019-05-089590-807-09201.50 ppb
2019-05-089590-808-0820ND
2019-08-149590-801-12302.30 ppb
2019-08-149590-802-11102.50 ppb
2019-08-149590-803-10402.90 ppb
2019-08-149590-804-12102.60 ppb
2019-08-149590-805-09451.90 ppb
2019-08-149590-806-12502.40 ppb
2019-08-149590-807-11502.60 ppb
2019-08-149590-808-10101.000 ppb
2019-11-139590-801-10301.90 ppb
2019-11-139590-802-09152.40 ppb
2019-11-139590-803-08502.40 ppb
2019-11-139590-804-10152.20 ppb
2019-11-139590-805-08153.70 ppb
2019-11-139590-806-10501.20 ppb
2019-11-139590-807-10002.20 ppb
2019-11-139590-808-0835ND