Know Your Environment. Protect Your Health.

Dichloroacetic acid

Chamberino Mdwc & Sa

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.15 ppb221.10 ppb - 1.20 ppb
20190.665 ppb220.660 ppb - 0.670 ppb
2020ND20ND
20210.910 ppb220.850 ppb - 0.970 ppb
20220.565 ppb220.490 ppb - 0.640 ppb
20230.990 ppb220.880 ppb - 1.10 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
2018-07-1820180197161.20 ppb
2018-08-0820180222411.10 ppb
2019-07-1520190193300.670 ppb
2019-08-1220190223850.660 ppb
2020-07-072020189961ND
2020-08-112020285540ND
2021-07-0720211342810.850 ppb
2021-08-1120211479400.970 ppb
2022-07-1120221017820.490 ppb
2022-08-1020221150770.640 ppb
2023-07-0520230309881.10 ppb
2023-08-1520230352620.880 ppb