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EWG's Tap Water Database — 2019 UPDATE

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1,1,1,2-Tetrachloroethane

City of Lake Charles Water System

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

 

34

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND340ND
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

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
2012-04-30AD65286ND
2012-04-30AD65283ND
2012-04-30AD65284ND
2012-04-30AD65286ND
2012-04-30AD65285ND
2012-04-30AD65284ND
2012-04-30AD65283ND
2012-04-30AD65282ND
2012-04-30AD65282ND
2012-04-30AD65285ND
2012-05-29AD65746ND
2012-05-29AD65745ND
2012-05-29AD65744ND
2012-05-29AD65743ND
2012-05-29AD65742ND
2012-05-29AD65743ND
2012-05-29AD65744ND
2012-05-29AD65745ND
2012-05-29AD65746ND
2012-05-29AD65742ND
2012-07-23AD67957ND
2012-07-23AD67960ND
2012-07-23AD67960ND
2012-07-23AD67959ND
2012-07-23AD67958ND
2012-07-23AD67957ND
2012-07-23AD67959ND
2012-07-23AD67958ND
2012-07-23AD67956ND
2012-07-23AD67956ND
2012-10-08AD71685ND
2012-10-08AD71683ND
2012-10-08AD71685ND
2012-10-08AD71683ND