Know Your Environment. Protect Your Health.

Dichloroacetic acid

Quail Ridge Estates Water System

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.735 ppb440.730 ppb - 0.740 ppb
20190.740 ppb660.479 ppb - 0.880 ppb
20200.675 ppb220.610 ppb - 0.740 ppb
20211.20 ppb221.20 ppb
2022ND20ND
20231.10 ppb221.000 ppb - 1.20 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
2018-08-01354087180020.730 ppb
2018-08-01354087180010.740 ppb
2018-08-01354087180020.730 ppb
2018-08-01354087180010.740 ppb
2019-08-07354890230020.479 ppb
2019-08-07354890230020.479 ppb
2019-08-28354945320020.880 ppb
2019-08-28354945320020.880 ppb
2019-08-28354945320010.860 ppb
2019-08-28354945320010.860 ppb
2020-08-07355690230010.740 ppb
2020-08-07355690230020.610 ppb
2021-08-06356537630011.20 ppb
2021-08-06356537630021.20 ppb
2022-08-1735741539001ND
2022-08-1735741539002ND
2023-08-09358199050011.20 ppb
2023-08-09358199050021.000 ppb