Know Your Environment. Protect Your Health.

Trichloroacetic acid

Paw Glen Alsace Div

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.

 

88

Samples

0

Samples exceeding legal limit (MCL)

53

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.25 ppb42ND - 11.8 ppb
20192.30 ppb167ND - 10.4 ppb
20203.64 ppb168ND - 17.4 ppb
20213.94 ppb168ND - 24.5 ppb
202217.0 ppb1917ND - 37.6 ppb
202310.9 ppb1711ND - 37.9 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
2018-10-08413102011.20 ppb
2018-10-0841309901ND
2018-10-0841310001ND
2018-10-084131030111.8 ppb
2019-01-0842496401ND
2019-01-08424977011.70 ppb
2019-01-0842496501ND
2019-01-08424979018.50 ppb
2019-04-0843657201ND
2019-04-0843657401ND
2019-04-0843657101ND
2019-04-084365730110.4 ppb
2019-07-0945015101ND
2019-07-09450152012.10 ppb
2019-07-09450153015.40 ppb
2019-07-0945015001ND
2019-10-07468309011.20 ppb
2019-10-07468310017.50 ppb
2019-10-0746830701ND
2019-10-0746830801ND
2020-01-07ND
2020-01-071.50 ppb
2020-01-078.20 ppb
2020-01-07ND
2020-04-081.40 ppb
2020-04-0810.8 ppb
2020-04-08ND
2020-04-08ND
2020-07-072.20 ppb
2020-07-0717.4 ppb
2020-07-07ND
2020-07-07ND
2020-10-07ND
2020-10-07ND
2020-10-0714.5 ppb
2020-10-072.30 ppb
2021-01-07ND
2021-01-07ND
2021-01-077.60 ppb
2021-01-071.20 ppb
2021-04-071.80 ppb
2021-04-075.90 ppb
2021-04-07ND
2021-04-07ND
2021-07-08ND
2021-07-08ND
2021-07-0816.6 ppb
2021-07-082.20 ppb
2021-10-07ND
2021-10-07ND
2021-10-0724.5 ppb
2021-10-073.20 ppb
2022-01-1018.1 ppb
2022-01-1017.6 ppb
2022-01-1017.3 ppb
2022-01-103.90 ppb
2022-04-0721.1 ppb
2022-04-0723.3 ppb
2022-04-071.20 ppb
2022-04-0724.1 ppb
2022-07-1137.6 ppb
2022-07-1136.3 ppb
2022-07-1136.2 ppb
2022-07-113.30 ppb
2022-09-20ND
2022-09-2028.1 ppb
2022-09-2026.7 ppb
2022-10-1024.9 ppb
2022-10-101.30 ppb
2022-10-10ND
2022-10-102.40 ppb
2023-01-0921.5 ppb
2023-01-09ND
2023-01-091.20 ppb
2023-01-09ND
2023-04-10ND
2023-04-1020.8 ppb
2023-04-10ND
2023-04-108.00 ppb
2023-07-1118.9 ppb
2023-07-1124.3 ppb
2023-07-1127.5 ppb
2023-07-113.20 ppb
2023-10-09ND
2023-10-09ND
2023-10-0937.9 ppb
2023-10-092.00 ppb
2023-11-2720.7 ppb