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EWG's Tap Water Database — 2019 UPDATE

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Carbon tetrachloride

City of Phoenix

Carbon tetrachloride, a volatile carcinogenic solvent, has been used in industrial chemical production and as a dry cleaning ingredient. Read More.

Carbon tetrachloride is no longer permitted in products intended for home use in the U.S. In the past, it was widely used as a dry cleaning ingredient, fire extinguishing chemical, pesticide and chemical intermediate for manufacturing refrigerants. Carbon tetrachloride does not break down easily and can remain in groundwater for years. In addition to increasing cancer risk, carbon tetrachloride harms the liver and causes central nervous system depression, irregular heart rate, and kidney damage. Maternal exposure to carbon tetrachloride in drinking water has been associated with a risk of birth defects.

Click here to read more about carcinogenic VOCs.

 

57

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND50ND
2013ND90ND
2014ND140ND
2015ND30ND
2016ND20ND
2017ND240ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for carbon tetrachloride 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 carbon tetrachloride, established in 1987, 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 carbon tetrachloride exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-032012000199ND
2012-01-042010248-01ND
2012-01-102012001858ND
2012-01-252012005032ND
2012-11-072012073770ND
2013-01-152013002280ND
2013-02-052013006702ND
2013-02-052013006697ND
2013-02-202013009699ND
2013-04-162013023391ND
2013-04-162013023379ND
2013-07-172013044656ND
2013-07-232013045603ND
2013-10-212013066891ND
2014-01-064010287-01ND
2014-01-062013081234ND
2014-01-082013081395ND
2014-01-152014001541ND
2014-01-152014001126ND
2014-01-162014001412ND
2014-01-162014001140ND
2014-01-212014003201ND
2014-01-212014003186ND
2014-01-232014003220ND
2014-02-182014009513ND
2014-02-182014009413ND
2014-02-262014009696ND
2014-04-072014020061ND
2015-01-072014084197ND
2015-01-212015001870ND
2015-01-292015006468ND
2016-01-122016001462ND
2016-01-132016001686ND
2017-01-04201701040662VND
2017-01-042016087234ND
2017-01-042016086891ND
2017-01-042016086879ND
2017-01-042016086858ND
2017-01-052016087246ND
2017-01-102017001707ND
2017-01-102017001691ND
2017-01-112017001852ND
2017-01-112017001866ND
2017-01-172017002400ND
2017-01-182017002446ND
2017-01-182017002433ND
2017-01-252017004361ND
2017-01-252017004347ND
2017-02-012017006547ND
2017-02-082017008750ND
2017-02-222017012582ND
2017-03-222017020011ND
2017-04-122017028332ND
2017-04-272017031739VOCND
2017-04-272017031726VOCND
2017-07-19201707250776VND
2017-10-102017077918ND