Know Your Environment. Protect Your Health.

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.

 

132

Samples

0

Samples exceeding legal limit (MCL)

97

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.64 ppb3224ND - 8.10 ppb
20190.829 ppb3222ND - 1.90 ppb
20201.12 ppb1612ND - 2.60 ppb
20211.05 ppb1611ND - 1.80 ppb
20221.31 ppb2016ND - 2.20 ppb
20231.92 ppb1612ND - 3.90 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.03 ppb

The EWG Health Guideline of 0.03 ppb for dibromoacetic acid was defined by the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
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
2020-03-1135537039001ND
2020-03-1135537039002ND
2020-03-1135537039003ND
2020-03-1135537039004ND
2020-06-11355562500010.850 ppb
2020-06-11355562500020.660 ppb
2020-06-11355562500030.640 ppb
2020-06-11355562500040.690 ppb
2020-09-03355756750012.60 ppb
2020-09-03355756750022.50 ppb
2020-09-03355756750032.00 ppb
2020-09-03355756750042.60 ppb
2020-12-10355983180011.30 ppb
2020-12-10355983180021.30 ppb
2020-12-10355983180031.30 ppb
2020-12-10355983180041.40 ppb
2021-03-1835620545001ND
2021-03-1935620545002ND
2021-03-1935620545003ND
2021-03-1935620545004ND
2021-06-30356444690011.40 ppb
2021-06-30356444690021.30 ppb
2021-06-30356444690031.30 ppb
2021-06-30356444690041.30 ppb
2021-09-24356671050011.50 ppb
2021-09-24356671050021.70 ppb
2021-09-24356671050031.70 ppb
2021-09-2435667105004ND
2021-12-21356863050011.60 ppb
2021-12-21356863050021.60 ppb
2021-12-21356863050031.60 ppb
2021-12-21356863050041.80 ppb
2022-03-1035702953001ND
2022-03-1035702953002ND
2022-03-1035702953003ND
2022-03-1035702953004ND
2022-06-08B2202689-0011.10 ppb
2022-06-08B2202689-0021.12 ppb
2022-06-08B2202689-0031.14 ppb
2022-06-08B2202689-0041.10 ppb
2022-07-25357342720011.90 ppb
2022-07-25357342720021.90 ppb
2022-07-25357342720031.90 ppb
2022-07-25357342720041.60 ppb
2022-09-07357450590011.60 ppb
2022-09-07357450590021.60 ppb
2022-09-07357450590031.70 ppb
2022-09-07357450590041.90 ppb
2022-12-01357634240011.70 ppb
2022-12-01357634240022.20 ppb
2022-12-01357634240031.90 ppb
2022-12-01357634240041.90 ppb
2023-03-1635786614001ND
2023-03-1635786614002ND
2023-03-1635786614003ND
2023-03-1635786614004ND
2023-06-21358083690012.00 ppb
2023-06-21358083690021.70 ppb
2023-06-21358083690031.90 ppb
2023-06-21358083690042.10 ppb
2023-09-18358284180013.50 ppb
2023-09-18358284180023.90 ppb
2023-09-18358284180033.60 ppb
2023-09-18358284180043.50 ppb
2023-12-27358505920011.70 ppb
2023-12-27358505920022.90 ppb
2023-12-27358505920031.90 ppb
2023-12-27358505920042.00 ppb