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EWG's Tap Water Database — 2019 UPDATE

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Tetrachloroethylene (perchloroethylene)

Rurban Homes Mutual Water Company

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND40ND
2014ND40ND
2015ND40ND
2016ND40ND
2017ND40ND

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
2012-03-079588-001-1010ND
2012-06-139588-001-1005ND
2012-09-109588-001-0955ND
2012-12-059588-001-0955ND
2013-03-079588-001-0955ND
2013-06-129588-001-1005ND
2013-09-129588-001-1020ND
2013-12-099588-001-1035ND
2014-03-129588-001-0920ND
2014-06-059588-001-1010ND
2014-09-029588-001-0955ND
2014-12-039588-001-1350ND
2015-03-099588-001-1000ND
2015-06-089588-001-0945ND
2015-09-039588-001-1005ND
2015-12-019588-001-1000ND
2016-03-099588-001-0950ND
2016-06-079588-001-0945ND
2016-09-199588-001-0950ND
2016-12-069588-001-1130ND
2017-03-099588-001-0845ND
2017-06-079588-001-1300ND
2017-09-059588-001-1035ND
2017-12-069588-001-0945ND