Know Your Environment. Protect Your Health.

Dichloroacetic acid

Bonney Lake Water Department

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.

 

44

Samples

0

Samples exceeding legal limit (MCL)

19

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.26 ppb106ND - 3.88 ppb
20190.379 ppb82ND - 1.67 ppb
2020N/A00N/A
20210.595 ppb83ND - 2.37 ppb
20221.14 ppb85ND - 3.02 ppb
20230.557 ppb103ND - 2.99 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
2018-03-14ND
2018-03-14ND
2018-05-151.34 ppb
2018-05-153.88 ppb
2018-06-061.60 ppb
2018-06-061.10 ppb
2018-09-202.20 ppb
2018-09-202.50 ppb
2018-12-17ND
2018-12-17ND
2019-03-18ND
2019-03-181.36 ppb
2019-05-22ND
2019-05-22ND
2019-08-131.67 ppb
2019-08-13ND
2019-11-21ND
2019-11-21ND
2021-04-074102489ND
2021-04-074102486ND
2021-05-244126088ND
2021-05-244126089ND
2021-08-1241592552.37 ppb
2021-08-1241592541.29 ppb
2021-11-1742074941.10 ppb
2021-11-174207495ND
2022-02-094241794ND
2022-02-094241795ND
2022-05-1042868611.44 ppb
2022-05-1042868603.02 ppb
2022-08-1643639032.07 ppb
2022-08-1643639051.51 ppb
2022-11-0843747711.11 ppb
2022-11-084374772ND
2023-02-0744118971.19 ppb
2023-02-074411898ND
2023-04-104444310ND
2023-04-1044443081.39 ppb
2023-05-224466378ND
2023-05-224466379ND
2023-09-124523153ND
2023-09-1245231542.99 ppb
2023-11-274556385ND
2023-11-274556384ND