Know Your Environment. Protect Your Health.

Dichloroacetic acid

Cathedral Gardens Water District

NOTE: Cathedral Gardens Water District purchases water from West Hempstead WD which is required to test for dichloroacetic acid. Sample information shown below was taken by West Hempstead WD.

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019N/A00N/A
2020ND30ND
2021ND30ND
2022ND30ND
2023ND20ND

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

NOTE: Cathedral Gardens Water District purchases water from West Hempstead WD which is required to test for dichloroacetic acid. Sample information shown below was taken by West Hempstead WD.

Date Lab ID Result
2018-06-137054816002ND
2018-06-137054816001ND
2020-09-2370146970002ND
2020-09-2370146970001ND
2021-06-1470176861002ND
2021-06-1470176861001ND
2022-06-0870217498002ND
2022-06-0870217498001ND
2022-08-1870226523003ND
2022-08-1870226521003ND
2022-10-3170235053003-SECND
2023-01-2470244165003ND
2023-03-2770250676001ND
2023-03-2770250676003ND
2023-04-2570254032001ND
2023-04-2570254032003ND
2023-06-1370259565001ND
2023-06-1370259565002ND
2023-07-2470264371001ND
2023-07-2470264371003ND
2023-10-3070275897001ND
2023-10-3070275897003ND
2023-11-2970279081003ND
2023-11-2970279081001ND