Know Your Environment. Protect Your Health.

Trichloroacetic acid

Cross Roads Special Utility District Greenwood Ranch Me

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

18

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.63 ppb43ND - 7.20 ppb
2019ND40ND
202012.2 ppb43ND - 17.0 ppb
202116.2 ppb4414.5 ppb - 17.7 ppb
202214.8 ppb4411.3 ppb - 18.0 ppb
202313.9 ppb4410.9 ppb - 16.3 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
2018-02-22Q18076180021.90 ppb
2018-05-24Q18209470017.20 ppb
2018-08-21Q18336250011.40 ppb
2018-12-14Q1851789001ND
2019-01-10Q1901413001ND
2019-04-08Q1914002001ND
2019-07-25Q1947860001ND
2019-10-29Q1974616001ND
2020-03-12Q2010439001ND
2020-05-21Q202037100115.6 ppb
2020-09-17Q203719400316.0 ppb
2020-12-17Q205008400417.0 ppb
2021-03-02Q210530900915.0 ppb
2021-06-24Q211661800814.5 ppb
2021-09-21Q212586200117.6 ppb
2021-11-30Q213301200117.7 ppb
2022-03-22Q220916000214.0 ppb
2022-05-26Q221524300118.0 ppb
2022-09-15Q222771000111.3 ppb
2022-12-13Q223729900115.8 ppb
2023-02-27Q230781500516.3 ppb
2023-05-25Q231967000115.4 ppb
2023-07-20Q232874700110.9 ppb
2023-10-16Q234389600112.8 ppb