Know Your Environment. Protect Your Health.

Dichloroacetic acid

Marion 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.

 

64

Samples

0

Samples exceeding legal limit (MCL)

36

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.811 ppb16160.420 ppb - 1.40 ppb
20190.451 ppb168ND - 1.40 ppb
2020ND80ND
2021ND80ND
20221.33 ppb880.820 ppb - 2.60 ppb
20230.638 ppb84ND - 2.20 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
2018-03-01353778230010.560 ppb
2018-03-01353778230020.630 ppb
2018-03-01353778230020.630 ppb
2018-03-01353778230010.560 ppb
2018-06-19353998700020.810 ppb
2018-06-19353998700010.950 ppb
2018-06-19353998700020.810 ppb
2018-06-19353998700010.950 ppb
2018-09-18354194260011.40 ppb
2018-09-18354194260021.20 ppb
2018-09-18354194260011.40 ppb
2018-09-18354194260021.20 ppb
2018-12-17354384950010.420 ppb
2018-12-17354384950010.420 ppb
2018-12-17354384950020.520 ppb
2018-12-17354384950020.520 ppb
2019-03-1835456301001ND
2019-03-1835456301002ND
2019-03-1835456301001ND
2019-03-1835456301002ND
2019-06-11354755310010.660 ppb
2019-06-11354755310020.700 ppb
2019-06-11354755310010.660 ppb
2019-06-11354755310020.700 ppb
2019-09-06354956730020.850 ppb
2019-09-06354956730011.40 ppb
2019-09-06354956730011.40 ppb
2019-09-06354956730020.850 ppb
2019-12-0535516919001ND
2019-12-0535516919002ND
2019-12-0535516919002ND
2019-12-0535516919001ND
2020-03-1835538798002ND
2020-03-1835538798001ND
2020-06-1235556376001ND
2020-06-1235556376002ND
2020-09-1035577331001ND
2020-09-1035577331002ND
2020-12-1035598493001ND
2020-12-1035598493002ND
2021-03-1035618747001ND
2021-03-1035618747002ND
2021-06-0435638549001ND
2021-06-0435638549002ND
2021-09-0935663203001ND
2021-09-0935663203002ND
2021-12-0235681959001ND
2021-12-0235681959002ND
2022-03-04357014580021.20 ppb
2022-03-04357014580011.10 ppb
2022-06-20357272120022.60 ppb
2022-06-20357272120011.30 ppb
2022-09-21357492100011.20 ppb
2022-09-21357492100021.30 ppb
2022-12-15357678950011.10 ppb
2022-12-15357678950020.820 ppb
2023-03-23357881200011.40 ppb
2023-03-23357881200022.20 ppb
2023-06-2735809975001ND
2023-06-2735809975002ND
2023-09-2735830991001ND
2023-09-2735830991002ND
2023-12-14358497030010.620 ppb
2023-12-14358497030020.880 ppb