Know Your Environment. Protect Your Health.

Dichloroacetic acid

LPWDN North Region

Dichloroacetic 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.

 

128

Samples

0

Samples exceeding legal limit (MCL)

121

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.54 ppb32320.870 ppb - 4.20 ppb
20191.33 ppb32320.750 ppb - 2.10 ppb
20200.882 ppb1612ND - 1.60 ppb
20211.15 ppb16160.810 ppb - 1.70 ppb
20221.01 ppb16160.660 ppb - 1.50 ppb
20231.05 ppb1613ND - 2.10 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic 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 reproduction and child development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-09353792780011.000 ppb
2018-03-09353792780020.870 ppb
2018-03-09353792780031.000 ppb
2018-03-09353792780040.950 ppb
2018-03-09353792780011.000 ppb
2018-03-09353792780020.870 ppb
2018-03-09353792780031.000 ppb
2018-03-09353792780040.950 ppb
2018-06-15353987160011.80 ppb
2018-06-15353987160024.20 ppb
2018-06-15353987160032.30 ppb
2018-06-15353987160042.00 ppb
2018-06-15353987160011.80 ppb
2018-06-15353987160024.20 ppb
2018-06-15353987160032.30 ppb
2018-06-15353987160042.00 ppb
2018-09-12354180150011.20 ppb
2018-09-12354180150021.40 ppb
2018-09-12354180150031.70 ppb
2018-09-12354180150041.40 ppb
2018-09-12354180150011.20 ppb
2018-09-12354180150021.40 ppb
2018-09-12354180150031.70 ppb
2018-09-12354180150041.40 ppb
2018-12-13354373820011.000 ppb
2018-12-13354373820021.30 ppb
2018-12-13354373820031.40 ppb
2018-12-13354373820041.10 ppb
2018-12-13354373820011.000 ppb
2018-12-13354373820021.30 ppb
2018-12-13354373820031.40 ppb
2018-12-13354373820041.10 ppb
2019-03-14354546200011.20 ppb
2019-03-14354546200021.40 ppb
2019-03-14354546200031.50 ppb
2019-03-14354546200041.20 ppb
2019-03-14354546200011.20 ppb
2019-03-14354546200021.40 ppb
2019-03-14354546200031.50 ppb
2019-03-14354546200041.20 ppb
2019-06-14354756660012.10 ppb
2019-06-14354756660021.50 ppb
2019-06-14354756660031.60 ppb
2019-06-14354756660041.40 ppb
2019-06-14354756660012.10 ppb
2019-06-14354756660021.50 ppb
2019-06-14354756660031.60 ppb
2019-06-14354756660041.40 ppb
2019-09-12354977880011.40 ppb
2019-09-12354977880021.50 ppb
2019-09-12354977880031.70 ppb
2019-09-12354977880041.20 ppb
2019-09-12354977880011.40 ppb
2019-09-12354977880021.50 ppb
2019-09-12354977880031.70 ppb
2019-09-12354977880041.20 ppb
2019-12-12355189090010.970 ppb
2019-12-12355189090020.880 ppb
2019-12-12355189090031.000 ppb
2019-12-12355189090040.750 ppb
2019-12-12355189090010.970 ppb
2019-12-12355189090020.880 ppb
2019-12-12355189090031.000 ppb
2019-12-12355189090040.750 ppb
2020-03-06355359190011.30 ppb
2020-03-06355359190021.000 ppb
2020-03-06355359190031.10 ppb
2020-03-06355359190041.000 ppb
2020-06-0535554826001ND
2020-06-0535554826002ND
2020-06-0535554826003ND
2020-06-0535554826004ND
2020-09-11355773430011.30 ppb
2020-09-11355773430021.000 ppb
2020-09-11355773430031.20 ppb
2020-09-11355773430040.910 ppb
2020-12-10355985210011.60 ppb
2020-12-10355985210021.20 ppb
2020-12-10355985210031.40 ppb
2020-12-10355985210041.10 ppb
2021-03-11356189320011.50 ppb
2021-03-11356189320021.30 ppb
2021-03-11356189320031.40 ppb
2021-03-11356189320041.20 ppb
2021-06-10356403110011.40 ppb
2021-06-10356403110021.000 ppb
2021-06-10356403110031.000 ppb
2021-06-10356403110040.890 ppb
2021-09-02356616100011.70 ppb
2021-09-02356616100020.980 ppb
2021-09-02356616100031.000 ppb
2021-09-02356616100040.900 ppb
2021-12-03356819260011.50 ppb
2021-12-03356819260020.900 ppb
2021-12-03356819260030.940 ppb
2021-12-03356819260040.810 ppb
2022-03-03357014500011.40 ppb
2022-03-03357014500021.000 ppb
2022-03-03357014500030.960 ppb
2022-03-03357014500040.900 ppb
2022-06-03357224320011.10 ppb
2022-06-03357224320020.790 ppb
2022-06-03357224320030.810 ppb
2022-06-03357224320040.720 ppb
2022-09-01357443390011.10 ppb
2022-09-01357443390020.710 ppb
2022-09-01357443390030.840 ppb
2022-09-01357443390040.660 ppb
2022-12-01357638030011.40 ppb
2022-12-01357638030021.20 ppb
2022-12-01357638030031.50 ppb
2022-12-01357638030041.10 ppb
2023-03-07357842630011.40 ppb
2023-03-07357842630021.10 ppb
2023-03-07357842630031.50 ppb
2023-03-07357842630041.20 ppb
2023-06-0635804884001ND
2023-06-06358048840021.20 ppb
2023-06-06358048840031.70 ppb
2023-06-06358048840042.10 ppb
2023-09-13358281460011.20 ppb
2023-09-1335828146002ND
2023-09-13358281460030.660 ppb
2023-09-1335828146004ND
2023-12-11358478460011.30 ppb
2023-12-11358478460021.10 ppb
2023-12-11358478460031.30 ppb
2023-12-11358478460041.10 ppb