Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Carbon tetrachloride

Northampton Bucks County Municipal Authority

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.

 

94

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND120ND
2013ND120ND
2014ND230ND
2015ND150ND
2016ND110ND
2017ND210ND

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
2012-02-28L4066896-1ND
2012-03-07L4061769-1ND
2012-05-23L4168750-1ND
2012-05-23L4168751-1ND
2012-06-06L3257952-3ND
2012-06-06L3257952-1ND
2012-06-06L3257952-2ND
2012-06-06L3257952-4ND
2012-08-16L4291049-1ND
2012-08-16L4291049-2ND
2012-11-15L4392086-2ND
2012-11-15L4392086-1ND
2013-03-05L3661861-2ND
2013-03-05L3661861-1ND
2013-05-14L2391330-1ND
2013-05-14L2286687-1ND
2013-07-02L1595500-2ND
2013-07-02L1595500-4ND
2013-07-02L1595500-1ND
2013-07-02L1595500-3ND
2013-08-08L4725530-1ND
2013-08-08L4725529-1ND
2013-11-19L4836093-1ND
2013-11-19L4836092-1ND
2014-02-25L4951918-1ND
2014-02-25L4951922-1ND
2014-05-20L4690565-1ND
2014-05-20L4799412-1ND
2014-07-17L5163463-13ND
2014-07-17L5163463-1ND
2014-07-17L5163463-2ND
2014-07-17L5163463-15ND
2014-07-17L5163463-3ND
2014-07-17L5163463-14ND
2014-07-17L5163463-4ND
2014-07-17L5163463-7ND
2014-07-17L5163463-6ND
2014-07-17L5163463-5ND
2014-07-17L5163463-12ND
2014-07-17L5163463-10ND
2014-07-17L5163463-11ND
2014-07-17L5163463-9ND
2014-07-17L5163463-8ND
2014-08-15L4359849-1ND
2014-08-15L4460454-1ND
2014-12-04L5352437-1ND
2014-12-04L5352436-1ND
2015-02-1012390489ND
2015-02-1012390435ND
2015-05-1112738437ND
2015-05-1112738491ND
2015-07-0913859326ND
2015-07-0913859380ND
2015-07-0913859434ND
2015-08-1913123833ND
2015-08-1913123887ND
2015-08-2813124408ND
2015-11-2013503427ND
2015-11-2013503373ND
2015-11-2013503589ND
2015-11-2013503535ND
2015-11-2013503481ND
2016-02-2313975162ND
2016-02-2313975109ND
2016-02-2313975056ND
2016-02-2313975003ND
2016-02-2313974950ND
2016-05-2414237910ND
2016-07-2114555721ND
2016-07-2114555773ND
2016-07-2114555669ND
2016-07-2114555617ND
2016-08-3014892513ND
2017-02-2715644177ND
2017-06-0716243966ND
2017-08-0116551825ND
2017-08-0116551773ND
2017-08-0116552085ND
2017-08-0116551877ND
2017-08-0116552033ND
2017-08-0116551981ND
2017-08-0116552137ND
2017-08-0116551929ND
2017-08-1716553059ND
2017-08-1716553111ND
2017-08-1716553007ND
2017-08-1716553163ND
2017-08-1716553267ND
2017-08-1716553215ND
2017-08-2416552927ND
2017-08-2416552823ND
2017-08-2416552771ND
2017-08-2416552719ND
2017-08-2416552875ND