Know Your Environment. Protect Your Health.

Dichloroacetic acid

Marygold Mutual Water Company

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.

 

34

Samples

0

Samples exceeding legal limit (MCL)

11

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.538 ppb81ND - 4.30 ppb
20190.463 ppb81ND - 3.70 ppb
20201.15 ppb83ND - 4.70 ppb
20210.550 ppb42ND - 1.20 ppb
20221.30 ppb221.000 ppb - 1.60 ppb
20230.575 ppb42ND - 1.30 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
2018-03-21CA3610028_DST_602-201803211230ND
2018-03-21CA3610028_DST_601-201803211224ND
2018-06-26CA3610028_DST_602-201806261004ND
2018-06-26CA3610028_DST_601-201806261018ND
2018-09-12CA3610028_DST_601-201809121138ND
2018-09-12CA3610028_DST_602-2018091211454.30 ppb
2018-12-19CA3610028_DST_602-201812191034ND
2018-12-19CA3610028_DST_601-201812191050ND
2019-03-13CA3610028_DST_602-2019031310443.70 ppb
2019-03-13CA3610028_DST_601-201903131024ND
2019-06-19CA3610028_DST_601-201906191121ND
2019-06-19CA3610028_DST_602-201906191130ND
2019-09-04CA3610028_DST_601-201909041135ND
2019-09-04CA3610028_DST_602-201909041145ND
2019-12-04CA3610028_DST_602-201912040955ND
2019-12-04CA3610028_DST_601-201912040934ND
2020-03-04CA3610028_DST_601-202003040740ND
2020-03-04CA3610028_DST_602-2020030408114.70 ppb
2020-06-03CA3610028_DST_602-2020060309003.00 ppb
2020-06-03CA3610028_DST_601-2020060309121.50 ppb
2020-09-02CA3610028_DST_601-202009020735ND
2020-09-02CA3610028_DST_602-202009020754ND
2020-12-09CA3610028_DST_602-202012090741ND
2020-12-09CA3610028_DST_601-202012090730ND
2021-03-03CA3610028_DST_601-2021030307321.000 ppb
2021-03-03CA3610028_DST_602-202103030802ND
2021-05-26CA3610028_DST_602-202105260812ND
2021-05-26CA3610028_DST_601-2021052607351.20 ppb
2022-03-02CA3610028_DST_602-2022030207421.60 ppb
2022-03-02CA3610028_DST_601-2022030207201.000 ppb
2023-03-01CA3610028_DST_601-202303010615ND
2023-03-01CA3610028_DST_602-2023030106251.30 ppb
2023-08-09CA3610028_DST_602-2023080906301.000 ppb
2023-08-09CA3610028_DST_601-202308090640ND