Know Your Environment. Protect Your Health.

Trichloroacetic acid

Dripping Springs Water Supply Corporation

Trichloroacetic 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)

18

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.00 ppb84ND - 14.2 ppb
20192.31 ppb84ND - 6.60 ppb
20200.413 ppb82ND - 1.80 ppb
20210.838 ppb84ND - 1.90 ppb
20220.600 ppb82ND - 2.70 ppb
20230.338 ppb82ND - 1.60 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic 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
2018-01-31AE11543ND
2018-01-31AE115392.80 ppb
2018-04-16AE224694.60 ppb
2018-04-16AE22467ND
2018-07-30AE34892ND
2018-07-30AE348932.40 ppb
2018-11-15AE46206ND
2018-11-15AE4620714.2 ppb
2019-02-11AE53736ND
2019-02-11AE537396.60 ppb
2019-05-16AE668154.90 ppb
2019-05-16AE66818ND
2019-08-28AE813322.90 ppb
2019-08-28AE81329ND
2019-10-14AE864334.10 ppb
2019-10-14AE86434ND
2020-03-11AF02220ND
2020-03-11AF02221ND
2020-06-15AF15198ND
2020-06-15AF15202ND
2020-09-03AF264591.80 ppb
2020-09-03AF26461ND
2020-11-18AF349801.50 ppb
2020-11-18AF34981ND
2021-02-11AF436751.60 ppb
2021-02-11AF43676ND
2021-05-11AF531971.90 ppb
2021-05-11AF53212ND
2021-08-04AF646211.40 ppb
2021-08-04AF64622ND
2021-10-11AF72881ND
2021-10-11AF728821.80 ppb
2022-03-02AF872162.10 ppb
2022-03-02AF87217ND
2022-06-07AF99839ND
2022-06-07AF99840ND
2022-09-07AG11802ND
2022-09-07AG11803ND
2022-10-20AG17812ND
2022-10-20AG178132.70 ppb
2023-03-06AG315101.10 ppb
2023-03-06AG31511ND
2023-06-22AG45563ND
2023-06-22AG45564ND
2023-08-17AG52994ND
2023-08-17AG52997ND
2023-11-07AG62566ND
2023-11-07AG625671.60 ppb