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EWG's Tap Water Database — 2019 UPDATE

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Carbon tetrachloride

City of North Platte

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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND50ND
2013ND50ND
2014ND120ND
2015ND50ND
2016ND40ND
2017ND80ND

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
2012-03-20152795ND
2012-04-23166098ND
2012-04-23166099ND
2012-10-30204680ND
2012-12-12209286ND
2013-02-27215114ND
2013-05-13230208ND
2013-05-13230207ND
2013-06-05230412ND
2013-10-29265563ND
2014-02-12278459ND
2014-03-19279093ND
2014-05-19294427ND
2014-05-19294426ND
2014-06-11294429ND
2014-06-11294433ND
2014-06-11294432ND
2014-06-11294431ND
2014-06-11294434ND
2014-06-11294428ND
2014-06-11294430ND
2014-11-19328562ND
2015-01-26343308ND
2015-04-22353626ND
2015-04-22353627ND
2015-10-28391765ND
2015-12-08391766ND
2016-06-02ND
2016-06-02ND
2016-06-08ND
2016-10-25ND
2017-05-09ND
2017-05-09ND
2017-06-21ND
2017-06-21ND
2017-06-21ND
2017-06-21ND
2017-06-21ND
2017-10-02ND