Know Your Environment. Protect Your Health.

Dichloroacetic acid

City of Richland Hills

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

36

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.75 ppb86ND - 4.80 ppb
20194.44 ppb87ND - 7.80 ppb
20205.36 ppb86ND - 15.8 ppb
20212.81 ppb86ND - 4.60 ppb
20222.14 ppb85ND - 5.00 ppb
20233.14 ppb86ND - 5.40 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
2018-01-30Q18038020033.90 ppb
2018-01-30Q18038020011.70 ppb
2018-04-10Q18145260103.80 ppb
2018-04-10Q18145260033.40 ppb
2018-07-23Q18290240014.40 ppb
2018-07-23Q1829024002ND
2018-10-18Q18416210014.80 ppb
2018-10-18Q1841621002ND
2019-01-16Q19022650042.70 ppb
2019-01-16Q19022650127.80 ppb
2019-06-17Q19368680015.50 ppb
2019-06-17Q19368680025.70 ppb
2019-09-03Q19615250023.80 ppb
2019-09-03Q19615250014.20 ppb
2019-11-21Q19777370015.80 ppb
2019-11-21Q1977737002ND
2020-02-19Q20064080184.20 ppb
2020-02-19Q2006408019ND
2020-04-07Q20139040014.00 ppb
2020-04-07Q20139040023.10 ppb
2020-07-16Q202802200111.8 ppb
2020-07-16Q202802200215.8 ppb
2020-11-04Q2042937001ND
2020-11-04Q20429370024.00 ppb
2021-03-17Q21070460032.40 ppb
2021-03-17Q2107046004ND
2021-04-05Q21084530053.30 ppb
2021-04-05Q21084530063.20 ppb
2021-07-26Q21194780014.60 ppb
2021-07-26Q21194780024.50 ppb
2021-10-05Q21273050014.50 ppb
2021-10-05Q2127305002ND
2022-01-19Q22020130112.60 ppb
2022-01-19Q2202013012ND
2022-04-18Q22118050014.00 ppb
2022-04-18Q2211805002ND
2022-08-04Q22223340015.00 ppb
2022-08-04Q2222334002ND
2022-11-15Q22342810014.40 ppb
2022-11-15Q22342810021.10 ppb
2023-01-18Q23025970014.20 ppb
2023-01-18Q23025970024.90 ppb
2023-05-18Q23187860014.90 ppb
2023-05-18Q2318786002ND
2023-09-26Q23412670013.50 ppb
2023-09-26Q23412670022.20 ppb
2023-11-02Q23470480035.40 ppb
2023-11-02Q2347048004ND