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EWG's Tap Water Database — 2019 UPDATE

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Carbon tetrachloride

North Penn Water 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.

 

306

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND370ND
2013ND520ND
2014ND510ND
2015ND470ND
2016ND600ND
2017ND590ND

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
2012-01-1812011268ND
2012-01-1812011268ND
2012-01-1812011268ND
2012-05-0720121667ND
2012-05-0720121668ND
2012-05-0720121669ND
2012-05-0720121670ND
2012-05-0720121671ND
2012-05-0720121672ND
2012-06-0620122029ND
2012-06-0620122027ND
2012-06-0620122028ND
2012-06-0620122026ND
2012-07-1120122428ND
2012-07-1120122429ND
2012-08-0120122665ND
2012-08-0120122660ND
2012-08-0120122661ND
2012-08-0120122662ND
2012-08-0120122664ND
2012-08-0120122663ND
2012-09-1920123305ND
2012-09-1920123302ND
2012-09-1920123303ND
2012-09-1920123306ND
2012-09-1920123304ND
2012-10-1720123691ND
2012-10-1720123692ND
2012-10-1720123693ND
2012-11-2620124016ND
2012-11-2620124017ND
2012-11-2620124018ND
2012-11-2620124019ND
2012-12-1220124345ND
2012-12-1220124342ND
2012-12-1220124343ND
2012-12-1220124344ND
2013-01-1620130197ND
2013-01-1620130198ND
2013-01-1620130199ND
2013-02-0620130465ND
2013-02-0620130466ND
2013-02-0620130467ND
2013-02-0620130468ND
2013-04-1720131328ND
2013-04-1720131323ND
2013-04-1720131324ND
2013-04-1720131326ND
2013-04-1720131325ND
2013-04-1720131327ND
2013-05-1520131666ND
2013-05-1520131667ND
2013-05-1520131668ND
2013-05-1520131669ND
2013-05-1520131670ND
2013-05-1520131671ND
2013-06-0520131984ND
2013-06-0520131979ND
2013-06-0520131980ND
2013-06-0520131982ND
2013-06-0520131983ND
2013-06-0520131981ND
2013-07-1020132442ND
2013-07-1020132443ND
2013-07-1020132444ND
2013-08-1920133017ND
2013-08-1920133018ND
2013-08-1920133014ND
2013-08-1920133015ND
2013-08-1920133016ND
2013-08-1920133019ND
2013-09-1820133416ND
2013-09-1820133417ND
2013-09-1820133418ND
2013-09-1820133419ND
2013-09-1820133420ND
2013-10-1620133724ND
2013-10-1620133725ND
2013-10-1620133727ND
2013-10-1620133726ND
2013-11-1120134022ND
2013-11-1120134023ND
2013-11-1120134024ND
2013-11-1120134025ND
2013-12-1120134387ND
2013-12-1120134388ND
2013-12-1120134390ND
2013-12-1120134391ND
2013-12-1120134389ND
2014-01-2020140222ND
2014-01-2020140223ND
2014-01-2020140224ND
2014-01-2020140225ND
2014-02-1220140545ND
2014-02-1220140546ND
2014-02-1220140542ND
2014-02-1220140543ND
2014-02-1220140544ND
2014-02-1220140547ND
2014-03-0520140816ND
2014-03-0520140817ND
2014-03-0520140818ND
2014-03-0520140819ND
2014-03-0520140820ND
2014-04-0220141122ND
2014-04-0220141123ND
2014-04-0220141125ND
2014-04-0220141124ND
2014-05-1920141698ND
2014-05-1920141699ND
2014-05-1920141700ND
2014-05-1920141701ND
2014-06-0420141932ND
2014-06-0420141933ND
2014-06-0420141935ND
2014-06-0420141936ND
2014-06-0420141934ND
2014-07-1620142445ND
2014-07-1620142446ND
2014-07-1620142447ND
2014-08-1820142827ND
2014-08-1820142828ND
2014-08-1820142824ND
2014-08-1820142825ND
2014-08-1820142826ND
2014-08-1820142829ND
2014-09-0820143077ND
2014-09-0820143078ND
2014-09-0820143079ND
2014-09-0820143080ND
2014-09-0820143081ND
2014-11-1014110622-001ND
2014-11-1014110622-002ND
2014-11-1014110622-003ND
2014-11-1014110622-004ND
2014-12-0820144185ND
2014-12-0820144186ND
2014-12-0820144188ND
2014-12-0820144189ND
2014-12-0820144187ND
2015-01-1912287158ND
2015-01-1912287179ND
2015-01-1912287200ND
2015-01-1912287221ND
2015-02-0912402105ND
2015-02-0912402126ND
2015-02-0912402042ND
2015-02-0912402063ND
2015-02-0912402084ND
2015-02-0912402147ND
2015-04-2012633463ND
2015-04-2012633484ND
2015-04-2012633526ND
2015-04-2012633505ND
2015-06-1512882977ND
2015-07-1313013072ND
2015-07-1313013098ND
2015-07-1313013124ND
2015-07-1313013150ND
2015-07-1313013176ND
2015-08-1713135673ND
2015-08-1713135694ND
2015-08-1713135736ND
2015-08-1713135757ND
2015-08-1713135715ND
2015-08-1713135778ND
2015-09-1413264715ND
2015-09-1413264741ND
2015-09-1413264767ND
2015-10-0513389219ND
2015-10-0513389240ND
2015-10-0513389282ND
2015-10-0513389261ND
2015-11-1113514210ND
2015-11-1113514147ND
2015-11-1113514168ND
2015-11-1113514189ND
2015-11-1113514231ND
2015-12-0213633351ND
2015-12-0213633377ND
2015-12-0213633403ND
2015-12-0213633429ND
2015-12-0213633455ND
2015-12-0213633481ND
2015-12-0913633507ND
2015-12-0913633307ND
2015-12-1413633328ND
2016-01-1813753170ND
2016-01-1813753191ND
2016-01-1813753212ND
2016-01-1813753233ND
2016-02-1713870707ND
2016-02-1713870728ND
2016-02-1713870644ND
2016-02-1713870665ND
2016-02-1713870686ND
2016-02-1713870749ND
2016-03-0213986058ND
2016-03-0213986084ND
2016-03-0213986110ND
2016-03-0213986136ND
2016-03-0213986162ND
2016-04-1814102975ND
2016-04-1814102996ND
2016-04-1814103038ND
2016-04-1814103017ND
2016-05-1614250810ND
2016-05-1614250831ND
2016-05-1614250852ND
2016-05-1614250873ND
2016-06-0614405895ND
2016-06-0614405922ND
2016-06-0614405976ND
2016-06-0614406003ND
2016-06-0614405949ND
2016-07-1814569956ND
2016-07-1814569977ND
2016-07-1814569998ND
2016-07-1814570019ND
2016-08-0114735676ND
2016-08-0114735697ND
2016-08-0114735613ND
2016-08-0114735634ND
2016-08-0114735655ND
2016-08-0114735718ND
2016-08-2314907957ND
2016-09-0714908084ND
2016-09-0714908111ND
2016-09-0714908138ND
2016-09-0714908165ND
2016-09-0714908192ND
2016-10-2415075733ND
2016-10-2415075754ND
2016-10-2415075796ND
2016-10-2415075775ND
2016-11-1415226170ND
2016-11-1415226086ND
2016-11-1415226107ND
2016-11-1415226212ND
2016-11-1415226128ND
2016-11-1415226191ND
2016-11-1415226149ND
2016-12-0515372195ND
2016-12-0515372216ND
2016-12-0515372237ND
2016-12-0515372258ND
2016-12-0515372279ND
2017-01-2315517784ND
2017-01-2315517805ND
2017-01-2315517826ND
2017-01-2315517847ND
2017-02-2215655943ND
2017-02-2315656027ND
2017-02-2315656048ND
2017-02-2315655964ND
2017-02-2315655985ND
2017-02-2315656006ND
2017-02-2315656069ND
2017-03-2215796089ND
2017-03-2215796116ND
2017-03-2215796143ND
2017-03-2215796170ND
2017-03-2215796197ND
2017-04-1715937481ND
2017-04-1715937502ND
2017-04-1715937544ND
2017-04-1715937523ND
2017-05-1516094576ND
2017-05-1516094597ND
2017-05-1516094660ND
2017-05-1516094618ND
2017-05-1516094639ND
2017-07-0516413117ND
2017-07-0516413138ND
2017-07-0516413159ND
2017-07-1716413714ND
2017-07-1716413735ND
2017-07-1716413756ND
2017-07-1716413777ND
2017-08-0216566174ND
2017-08-0216566195ND
2017-08-0216566069ND
2017-08-0216566090ND
2017-08-0216566153ND
2017-08-0216566111ND
2017-08-0216566132ND
2017-09-1116726754ND
2017-09-1116726781ND
2017-09-1116726808ND
2017-09-1116726835ND
2017-09-1116726862ND
2017-10-1616880085ND
2017-10-1616880106ND
2017-10-1616880148ND
2017-10-1616880127ND
2017-11-0117023341ND
2017-11-0117023362ND
2017-11-0117023425ND
2017-11-0117023383ND
2017-11-0117023404ND
2017-12-0417161963ND
2017-12-0417161984ND
2017-12-0417162026ND
2017-12-0417162047ND
2017-12-0417162005ND
2017-12-0417162068ND