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EWG's Tap Water Database — 2019 UPDATE

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Trichloroacetic acid

SBNDO County Service Area 70J

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.

 

47

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014N/A00N/A
2015ND160ND
2016ND160ND
2017ND150ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2015-01-123761-603-1140ND
2015-01-123761-604-1105ND
2015-01-123761-601-1230ND
2015-01-123761-602-1030ND
2015-04-083761-601-1030ND
2015-04-083761-603-1135ND
2015-04-083761-604-1345ND
2015-04-083761-602-1305ND
2015-07-093761-601-1130ND
2015-07-093761-603-1220ND
2015-07-093761-604-1300ND
2015-07-093761-602-1335ND
2015-10-133761-602-1135ND
2015-10-133761-603-1015ND
2015-10-133761-604-1220ND
2015-10-133761-601-1100ND
2016-01-113761-602-1215ND
2016-01-113761-604-1130ND
2016-01-113761-601-0950ND
2016-01-113761-603-1045ND
2016-04-113761-602-1150ND
2016-04-113761-601-1220ND
2016-04-133761-604-0950ND
2016-04-133761-603-0930ND
2016-07-143761-602-1200ND
2016-07-143761-604-1330ND
2016-07-143761-603-1300ND
2016-07-143761-601-1130ND
2016-10-113761-604-1325ND
2016-10-113761-603-1245ND
2016-10-113761-602-1120ND
2016-10-113761-601-1050ND
2017-01-103761-603-1240ND
2017-01-103761-604-1320ND
2017-01-103761-602-1130ND
2017-01-103761-601-1100ND
2017-04-113761-604-1300ND
2017-04-113761-603-1230ND
2017-04-113761-602-1140ND
2017-04-113761-601-1020ND
2017-07-103761-602-1115ND
2017-07-103761-603-1230ND
2017-07-103761-601-1030ND
2017-10-113761-604-1145ND
2017-10-113761-603-1215ND
2017-10-113761-602-1320ND
2017-10-113761-601-1400ND