Know Your Environment. Protect Your Health.

Dichloroacetic acid

City of Bridge City

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.

 

50

Samples

0

Samples exceeding legal limit (MCL)

33

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.14 ppb108ND - 2.10 ppb
20190.638 ppb84ND - 1.40 ppb
20201.15 ppb86ND - 1.80 ppb
20211.01 ppb86ND - 1.60 ppb
20220.713 ppb84ND - 1.80 ppb
20230.875 ppb85ND - 1.90 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
2018-02-21AE150201.10 ppb
2018-02-21AE150071.10 ppb
2018-05-03AE25024ND
2018-05-03AE25010ND
2018-08-09AE362941.30 ppb
2018-08-09AE362962.10 ppb
2018-09-05AE392031.30 ppb
2018-09-05AE392041.50 ppb
2018-11-05AE452321.60 ppb
2018-11-05AE452331.40 ppb
2019-01-24AE512001.40 ppb
2019-01-24AE512011.20 ppb
2019-04-10AE61803ND
2019-04-10AE61796ND
2019-07-01AE72760ND
2019-07-01AE727611.10 ppb
2019-10-01AE85313ND
2019-10-01AE853381.40 ppb
2020-02-03AE965271.80 ppb
2020-02-03AE965281.80 ppb
2020-05-07AF099941.60 ppb
2020-05-07AF099991.20 ppb
2020-08-20AF24525ND
2020-08-20AF24526ND
2020-10-08AF299741.40 ppb
2020-10-08AF299731.40 ppb
2021-02-24AF441511.30 ppb
2021-02-24AF441521.000 ppb
2021-04-22AF51080ND
2021-04-22AF51081ND
2021-08-18AF668561.50 ppb
2021-08-18AF668571.60 ppb
2021-10-06AF723951.30 ppb
2021-10-06AF723971.40 ppb
2022-01-26AF81875ND
2022-01-26AF81876ND
2022-04-19AF936301.80 ppb
2022-04-19AF936271.80 ppb
2022-07-27AG06553ND
2022-07-27AG065561.10 ppb
2022-10-12AG168921.000 ppb
2022-10-12AG16895ND
2023-02-21AG29615ND
2023-02-21AG29623ND
2023-05-11AG402851.000 ppb
2023-05-11AG40286ND
2023-08-29AG545041.20 ppb
2023-08-29AG545061.50 ppb
2023-11-09AG630471.40 ppb
2023-11-09AG630591.90 ppb