Know Your Environment. Protect Your Health.

Dichloroacetic acid

Sky Harbour Water Supply Corporation

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)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.00 ppb222.00 ppb
20190.700 ppb21ND - 1.40 ppb
2020ND20ND
20210.850 ppb21ND - 1.70 ppb
2022ND20ND
20231.30 ppb221.10 ppb - 1.50 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
2018-09-27Q18386370012.00 ppb
2018-09-27Q18386370022.00 ppb
2019-05-13Q1923815007ND
2019-05-13Q19238150081.40 ppb
2020-08-03Q2030172009ND
2020-08-03Q2030172010ND
2021-06-03Q2114419017ND
2021-06-03Q21144190181.70 ppb
2022-09-27Q2229028001ND
2022-09-27Q2229028002ND
2023-08-17Q23346970091.10 ppb
2023-08-17Q23346970101.50 ppb