Know Your Environment. Protect Your Health.

Dichloroacetic acid

Hillview Water Company-oakhurst/sierra Lakes

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND30ND
2021ND20ND
2022ND20ND
20230.500 ppb21ND - 1.000 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
2018-06-12CA2010007_DST_900-201806121017ND
2019-06-18CA2010007_DST_900-201906181551ND
2020-06-16CA2010007_DST_900-20200616NULND
2020-08-20CA2010007_DST_902-202008201313ND
2020-08-20CA2010007_DST_901-202008201255ND
2021-06-15CA2010007_DST_901-202106151213ND
2021-06-15CA2010007_DST_902-202106151226ND
2022-06-13CA2010007_DST_901-202206130905ND
2022-06-13CA2010007_DST_902-202206131108ND
2023-06-12CA2010007_DST_901-2023061209451.000 ppb
2023-06-12CA2010007_DST_902-202306121155ND