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EWG's Tap Water Database — 2019 UPDATE

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1,1,1,2-Tetrachloroethane

City of Ripon

1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND20ND
2014N/A00N/A
2015ND40ND
2016ND30ND
2017ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppb

The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as 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
2012-06-132625-022-1013ND
2012-06-132625-007-0927ND
2012-06-132625-003-0725ND
2012-07-182625-024-1040ND
2013-06-262625-010-1425ND
2013-10-292625-020-0935ND
2015-06-082625-022-1030ND
2015-06-082625-007-0955ND
2015-06-082625-003-1138ND
2015-07-082625-024-0955ND
2016-06-152625-010-0820ND
2016-06-152625-003-0800ND
2016-10-202625-020-1045ND
2017-06-142625-010-0930ND
2017-10-242625-020-1020ND