Know Your Environment. Protect Your Health.

Dichloroacetic acid

Town of Mount Jackson

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.05 ppb21ND - 2.10 ppb
20191.25 ppb21ND - 2.50 ppb
20205.43 ppb442.10 ppb - 7.30 ppb
20211.05 ppb64ND - 2.30 ppb
2022ND10ND
2023ND10ND

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
2018-09-04E180608903ND
2018-09-04E1806089072.10 ppb
2019-09-09E190607225ND
2019-09-09E1906072272.50 ppb
2020-07-20E2006026405.50 ppb
2020-07-20E2006026466.80 ppb
2020-11-17E2011000787.30 ppb
2020-11-17E2011000802.10 ppb
2021-02-16E2012030491.30 ppb
2021-02-16E2012030541.50 ppb
2021-05-18E2104022571.20 ppb
2021-05-18E210402260ND
2021-08-25E210603089ND
2021-08-25E2106030902.30 ppb
2022-07-19E220605177ND
2023-07-18E230602206ND