Know Your Environment. Protect Your Health.

Dichloroacetic acid

Gafford Chapel Water Supply Corporation

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)

35

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20187.06 ppb86ND - 19.6 ppb
20196.58 ppb86ND - 15.6 ppb
20205.13 ppb85ND - 11.5 ppb
20216.35 ppb87ND - 16.1 ppb
20225.36 ppb86ND - 11.0 ppb
20236.06 ppb85ND - 14.4 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
2018-02-06Q1804517002ND
2018-02-06Q18045170019.00 ppb
2018-04-12Q1815138010ND
2018-04-12Q181513800119.6 ppb
2018-07-26Q18298240011.60 ppb
2018-07-26Q182982400213.5 ppb
2018-11-05Q184403200111.7 ppb
2018-11-05Q18440320021.10 ppb
2019-02-28Q190877800111.8 ppb
2019-02-28Q1908778002ND
2019-05-22Q192778900915.6 ppb
2019-05-22Q19277890101.000 ppb
2019-09-13Q19649280021.000 ppb
2019-09-13Q196492800115.1 ppb
2019-12-02Q19784640018.10 ppb
2019-12-02Q1978464002ND
2020-02-20Q200654500911.5 ppb
2020-02-20Q2006545010ND
2020-05-26Q20206310019.50 ppb
2020-05-26Q2020631002ND
2020-09-29Q203827800111.0 ppb
2020-09-29Q20382780021.000 ppb
2020-12-08Q20490900018.00 ppb
2020-12-08Q2049090002ND
2021-03-08Q21059840017.90 ppb
2021-03-08Q21059840021.30 ppb
2021-05-11Q211206200111.5 ppb
2021-05-11Q21120620022.10 ppb
2021-08-24Q212296200116.1 ppb
2021-08-24Q21229620022.00 ppb
2021-10-14Q21288740119.90 ppb
2021-10-14Q2128874012ND
2022-02-28Q22066350018.60 ppb
2022-02-28Q22066350021.80 ppb
2022-04-21Q221219200111.0 ppb
2022-04-21Q22121920021.30 ppb
2022-07-27Q222139400810.1 ppb
2022-07-27Q2221394009ND
2022-10-26Q223233700110.1 ppb
2022-10-26Q2232337002ND
2023-02-21Q230704600110.2 ppb
2023-02-21Q2307046002ND
2023-05-02Q231647600110.6 ppb
2023-05-02Q2316476002ND
2023-07-18Q232799800314.4 ppb
2023-07-18Q2327998004ND
2023-10-11Q234340700112.1 ppb
2023-10-11Q23434070021.20 ppb