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EWG's Tap Water Database — 2021 UPDATE

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Carbon tetrachloride

Collegeville Trappe Joint Public Works Department

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.

MORE ABOUT THIS CONTAMINANT

 

168

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND280ND
2015ND280ND
2016ND280ND
2017ND280ND
2018ND280ND
2019ND280ND

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
2014-01-2020140238ND
2014-01-2020140239ND
2014-01-2020140240ND
2014-01-2020140241ND
2014-01-2020140242ND
2014-03-1720140955ND
2014-03-1720140956ND
2014-04-2120141346ND
2014-04-2120141347ND
2014-04-2120141348ND
2014-04-2120141349ND
2014-04-2120141350ND
2014-04-2120141351ND
2014-04-2120141352ND
2014-07-0714070813-001ND
2014-07-0714070813-002ND
2014-07-0714070813-003ND
2014-07-0714070813-004ND
2014-08-1320142789ND
2014-08-1320142790ND
2014-08-1320142791ND
2014-11-1714111750-01ND
2014-11-1714111750-02ND
2014-11-1714111750-03ND
2014-11-1714111750-04ND
2014-11-1714111750-05ND
2014-11-1714111750-06ND
2014-12-0114120200-01ND
2015-01-1912285459ND
2015-01-1912285480ND
2015-01-1912285501ND
2015-01-1912285522ND
2015-01-1912285543ND
2015-01-1912285564ND
2015-01-1912285585ND
2015-04-2012631597ND
2015-04-2012631618ND
2015-04-2012631639ND
2015-04-2012631660ND
2015-04-2012631681ND
2015-04-2012631702ND
2015-04-2012631723ND
2015-07-0613011210ND
2015-07-0613011236ND
2015-07-0613011262ND
2015-07-0613011288ND
2015-07-0613011314ND
2015-07-0613011340ND
2015-07-2013011554ND
2015-10-1913387782ND
2015-10-1913387803ND
2015-10-1913387824ND
2015-10-1913387845ND
2015-10-1913387866ND
2015-10-1913387887ND
2015-10-1913387908ND
2016-01-1813751353ND
2016-01-1813751374ND
2016-01-1813751395ND
2016-01-1813751416ND
2016-01-1813751437ND
2016-01-1813751458ND
2016-02-1613869082ND
2016-04-1814101347ND
2016-04-1814101368ND
2016-04-1814101389ND
2016-04-1814101410ND
2016-04-1814101431ND
2016-04-1814101452ND
2016-04-1814101473ND
2016-07-1814568369ND
2016-07-1814568390ND
2016-07-1814568411ND
2016-07-1814568432ND
2016-07-1814568453ND
2016-07-1814568474ND
2016-07-1814568495ND
2016-10-1715074117ND
2016-10-1715074138ND
2016-10-1715074159ND
2016-10-1715074180ND
2016-10-1715074201ND
2016-10-1715074222ND
2016-10-1715074243ND
2017-02-2715653932ND
2017-02-2715653953ND
2017-02-2715653974ND
2017-02-2715653995ND
2017-02-2715654016ND
2017-03-0715793999ND
2017-03-0715794020ND
2017-04-1715935332ND
2017-04-1715935353ND
2017-04-1715935374ND
2017-04-1715935395ND
2017-04-1715935416ND
2017-04-1715935437ND
2017-04-1715935458ND
2017-07-1716411672ND
2017-07-1716411693ND
2017-07-1716411714ND
2017-07-1716411735ND
2017-07-1716411756ND
2017-07-1716411777ND
2017-07-1716411798ND
2017-10-1616878523ND
2017-10-1616878544ND
2017-10-1616878565ND
2017-10-1616878586ND
2017-10-1616878607ND
2017-10-1616878628ND
2017-10-1616878649ND
2018-01-2220180311ND
2018-01-2220180312ND
2018-01-2220180313ND
2018-01-2220180314ND
2018-01-2220180315ND
2018-01-2220180316ND
2018-01-2220180317ND
2018-04-1820181575ND
2018-04-1820181576ND
2018-04-1820181577ND
2018-04-1820181578ND
2018-04-1820181579ND
2018-04-1820181580ND
2018-04-1820181581ND
2018-07-1620182718ND
2018-07-1620182719ND
2018-07-1620182720ND
2018-07-1620182721ND
2018-07-1620182722ND
2018-07-1620182723ND
2018-07-1620182724ND
2018-10-1520183946ND
2018-10-1520183947ND
2018-10-1520183948ND
2018-10-1520183949ND
2018-10-1520183950ND
2018-10-1520183951ND
2018-10-1520183952ND
2019-01-2320190306ND
2019-01-2320190307ND
2019-01-2320190308ND
2019-01-2320190309ND
2019-01-2320190310ND
2019-01-2320190311ND
2019-01-2320190312ND
2019-04-1520191439ND
2019-04-1520191440ND
2019-04-1520191441ND
2019-04-1520191442ND
2019-04-1520191443ND
2019-04-1520191444ND
2019-04-1520191445ND
2019-07-1520192706ND
2019-07-1520192707ND
2019-07-1520192708ND
2019-07-1520192709ND
2019-07-1520192710ND
2019-07-1520192711ND
2019-07-1520192712ND
2019-10-2120194150ND
2019-10-2120194151ND
2019-10-2120194152ND
2019-10-2120194153ND
2019-10-2120194154ND
2019-10-2120194155ND
2019-10-2120194156ND