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EWG's Tap Water Database — 2019 UPDATE

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Tetrachloroethylene (perchloroethylene)

City of Santa Barbara Water Department

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.

 

79

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND440ND
2013ND190ND
2014ND40ND
2015ND20ND
2016ND60ND
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
2012-01-129590-004-1001ND
2012-02-099590-035-0859ND
2012-02-099590-015-0945ND
2012-02-099590-015-1001ND
2012-02-099590-042-1103ND
2012-02-099590-042-1037ND
2012-02-099590-035-0849ND
2012-03-149590-042-1403ND
2012-03-149590-015-1245ND
2012-03-149590-042-1346ND
2012-03-149590-015-1300ND
2012-04-119590-004-1039ND
2012-04-119590-042-0929ND
2012-04-119590-015-0822ND
2012-04-119590-042-0958ND
2012-04-119590-015-0837ND
2012-05-039590-015-1220ND
2012-05-039590-015-1200ND
2012-05-039590-042-1125ND
2012-05-039590-042-1110ND
2012-06-139590-042-1214ND
2012-06-139590-015-1145ND
2012-06-139590-015-1130ND
2012-06-139590-042-1240ND
2012-07-029590-015-1311ND
2012-07-029590-015-1255ND
2012-07-029590-042-1225ND
2012-07-029590-004-0905ND
2012-07-029590-042-1207ND
2012-07-189590-005-0923ND
2012-08-079590-015-1108ND
2012-08-079590-042-1030ND
2012-08-079590-042-1010ND
2012-08-079590-015-1122ND
2012-09-069590-042-1514ND
2012-09-069590-042-1504ND
2012-10-029590-042-0937ND
2012-10-039590-004-1000ND
2012-11-149590-042-0912ND
2012-11-149590-042-0922ND
2012-12-119590-035-1018ND
2012-12-119590-042-1346ND
2012-12-119590-042-1332ND
2012-12-119590-035-1108ND
2013-01-089590-004-0957ND
2013-01-099590-042-0920ND
2013-01-099590-042-0950ND
2013-01-099590-035-1118ND
2013-01-099590-015-1029ND
2013-01-099590-015-1044ND
2013-01-099590-035-1132ND
2013-04-029590-004-0850ND
2013-04-299590-053-0947ND
2013-07-099590-004-0927ND
2013-07-169590-042-0735ND
2013-07-169590-042-0758ND
2013-07-169590-035-0905ND
2013-07-169590-035-0843ND
2013-08-029590-005-0859ND
2013-08-189590-031-1605ND
2013-09-179590-015-1210ND
2013-09-179590-015-1205ND
2013-10-079590-022-1215ND
2014-10-219590-035-0931ND
2014-10-219590-015-0843ND
2014-10-219590-042-0758ND
2014-10-229590-004-1014ND
2015-05-129590-055-0842ND
2015-11-109590-005-1050ND
2016-11-029590-005-1059ND
2016-11-029590-015-0946ND
2016-11-029590-053-1152ND
2016-11-029590-035-0916ND
2016-11-029590-042-1015ND
2016-11-029590-031-1120ND
2017-05-189590-058-1734ND
2017-11-079590-004-0955ND
2017-11-149590-035-0930ND
2017-11-149590-042-0848ND