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EWG's Tap Water Database — 2021 UPDATE

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Tetrachloroethylene (perchloroethylene)

Village Water System

Dry cleaning chemical tetrachloroethylene, or perc, can cause cancer. It pollutes soil and groundwater due to emissions from dry cleaning facilities, and automotive, metalworking and other industries. Read More.

The EPA considers tetrachloroethylene a likely human carcinogen. It has been linked with increased incidence of lung, breast and colon cancers. Tetrachloroethylene also damages the liver, kidneys and central nervous system. The California public health goal of 0.06 parts per billion, set to protect against cancer, is 80 times lower than the amount allowed by the federal government, which is a Maximum Contaminant Level of 5 parts per billion.

Click here to read more about carcinogenic VOCs.

MORE ABOUT THIS CONTAMINANT

 

84

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016ND360ND
2017ND120ND
2018N/A00N/A
2019ND360ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for tetrachloroethylene was defined 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. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL) 5 ppb

The legal limit for tetrachloroethylene, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit does not fully protect against the risk of cancer due to tetrachloroethylene exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2016-04-2035240730008ND
2016-04-2035240730007ND
2016-04-2035240730008ND
2016-04-2035240730006ND
2016-04-2035240730005ND
2016-04-2035240730004ND
2016-04-2035240730003ND
2016-04-2035240730002ND
2016-04-2035240730001ND
2016-04-2035240730001ND
2016-04-2035240730002ND
2016-04-2035240730003ND
2016-04-2035240730004ND
2016-04-2035240730005ND
2016-04-2035240730006ND
2016-04-2035240730007ND
2016-04-2635241518009ND
2016-04-2635241518008ND
2016-04-2635241518010ND
2016-04-2635241518007ND
2016-04-2635241518009ND
2016-04-2635241518008ND
2016-04-2635241518007ND
2016-04-2635241518006ND
2016-04-2635241518005ND
2016-04-2635241518004ND
2016-04-2635241518003ND
2016-04-2635241518002ND
2016-04-2635241518001ND
2016-04-2635241518005ND
2016-04-2635241518004ND
2016-04-2635241518006ND
2016-04-2635241518003ND
2016-04-2635241518002ND
2016-04-2635241518001ND
2016-04-2635241518010ND
2017-05-0135309459017ND
2017-05-0135309459016ND
2017-05-0135309459015ND
2017-05-0135309459014ND
2017-05-0135309459010ND
2017-05-0135309459018ND
2017-05-0135309459018ND
2017-05-0135309459017ND
2017-05-0135309459016ND
2017-05-0135309459015ND
2017-05-0135309459010ND
2017-05-0135309459014ND
2019-02-1135447880007ND
2019-02-1135447880008ND
2019-02-1135447880007ND
2019-02-1135447880006ND
2019-02-1135447880005ND
2019-02-1135447880004ND
2019-02-1135447880003ND
2019-02-1135447880002ND
2019-02-1135447880001ND
2019-02-1135447880001ND
2019-02-1135447880002ND
2019-02-1135447880003ND
2019-02-1135447880004ND
2019-02-1135447880005ND
2019-02-1135447880006ND
2019-02-1135447880008ND
2019-03-2535457558001ND
2019-03-2535457558009ND
2019-03-2535457558002ND
2019-03-2535457558003ND
2019-03-2535457558004ND
2019-03-2535457558005ND
2019-03-2535457558006ND
2019-03-2535457558007ND
2019-03-2535457558008ND
2019-03-2535457558009ND
2019-03-2535457558001ND
2019-03-2535457558002ND
2019-03-2535457558003ND
2019-03-2535457558004ND
2019-03-2535457558005ND
2019-03-2535457558006ND
2019-03-2535457558007ND
2019-03-2535457558008ND
2019-04-0135458991001ND
2019-04-0135458991001ND