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EWG's Tap Water Database — 2021 UPDATE

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Carbon tetrachloride

Carle Place Water District

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

 

232

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND460ND
2015ND390ND
2016ND460ND
2017ND370ND
2018ND340ND
2019ND300ND

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
2014-01-071401152-002-POCSND
2014-01-141401534-002-POCSND
2014-01-211401864-001A-POCND
2014-01-281401B26-001-POCSND
2014-02-041402041-001-POCSND
2014-02-111402459-001-POCSND
2014-02-181402794-001-POCSND
2014-02-251402C87-002-POCSND
2014-03-051403202-002-POCSND
2014-03-111403673-002-POCSND
2014-03-181403C15-001-POCSND
2014-03-251403G87-001-POCSND
2014-04-011404035-001-POCSND
2014-04-081404569-001-POCSND
2014-04-221404F67-001-POCSND
2014-05-131405845-001A-POCND
2014-05-151404B00-001-POCSND
2014-05-201405E02-001AND
2014-05-271405H98-001-POCSND
2014-06-031406145-001-POCSND
2014-06-101406658-001-POCSND
2014-06-171406B95-001A-POCND
2014-06-241406H04-001A-POCND
2014-07-011407017-001A-POCND
2014-07-081407408-001A-POCND
2014-07-151407987-001-POCSND
2014-07-221407E93-001A-POCND
2014-08-051408167-001-POCSND
2014-08-121408705-001A-POCND
2014-08-191408C87-001A-POCND
2014-08-261408I18-001A-POCND
2014-09-021409022-001A-POCND
2014-09-101409736-001A-POCND
2014-09-171409C71-001-POCSND
2014-09-231409H07-001-POCSND
2014-10-071410420-002-POCSND
2014-10-141410864-001-POCSND
2014-10-291410J12-001-POCSND
2014-11-051411222-001-POCSND
2014-11-121411718-001-POCSND
2014-11-181411B72-001-POCSND
2014-11-251411G47-001-POCSND
2014-12-021412107-001-POCSND
2014-12-091412653-001-POCSND
2014-12-161412C28-001-POCSND
2014-12-231412G70-001-POCSND
2015-01-061501251-001-POCSND
2015-01-121501529-002-POCSND
2015-01-201501A80-002-POCSND
2015-01-211501C57-001-POCSND
2015-02-031502065-001-POCSND
2015-02-101502527-001-POCSND
2015-02-181502A52-001ND
2015-03-031503090-001ND
2015-03-101503592-001ND
2015-04-071504384-001-POCSND
2015-04-141504956-002ND
2015-04-211504F41-001-POCSND
2015-05-051505224-001-POCSND
2015-05-121505778-001ND
2015-05-191505D23-001ND
2015-05-261505H79-001-POCSND
2015-06-021506106-001-POCSND
2015-06-091506713-001-POCSND
2015-06-161506C53-001-POCSND
2015-06-231506H93-001-POCSND
2015-07-071507334-001-POCSND
2015-07-141507894-002-POCSND
2015-07-211507E42-001-POCSND
2015-07-281507J59-002ND
2015-08-041508148-002-POCSND
2015-08-111508791-002-POCSND
2015-09-081509458-001-POCSND
2015-09-161511042-002-POCSND
2015-09-221509G47-002-POCSND
2015-10-061510382-002-POCSND
2015-10-131510888-002-POCSND
2015-10-201510E75-001-POCSND
2015-10-271510K08-001-POCSND
2015-11-101511730-001-POCSND
2015-11-171511136-002-POCSND
2015-11-171511C83-002-POCSND
2015-12-011512019-002-POCSND
2015-12-081512626-001-POCSND
2015-12-151512C33-0022-POCND
2016-01-051601129-002ND
2016-01-051601129-002-POCSND
2016-01-121601652-002-POCSND
2016-01-191601C40-002ND
2016-01-261601G72-002ND
2016-02-101602803-001-POCSND
2016-02-161602B17-002-POCSND
2016-02-231602G10-002-POCSND
2016-03-011603010-002ND
2016-03-081603578-001ND
2016-03-151603B58-002ND
2016-03-221603H02-002ND
2016-04-051604429-002ND
2016-04-121604A71-002ND
2016-04-191604H27-002ND
2016-04-261604N41-002ND
2016-05-031605152-002ND
2016-05-031605153-002ND
2016-05-171605E39-001ND
2016-05-241605L73-002ND
2016-06-081606720-001ND
2016-06-141606D20-002ND
2016-06-211606K09-001ND
2016-06-291606S20-002ND
2016-07-051607158-002-POCSND
2016-07-121607847-002-POCSND
2016-07-191607E83-002ND
2016-07-261607L45-002ND
2016-08-021608143-002ND
2016-08-091608871-002ND
2016-08-161608E72-002ND
2016-08-231608L58-002AND
2016-09-061609241-002ND
2016-09-131609997-002ND
2016-09-131609997-002-POCSND
2016-09-201609G07-002ND
2016-09-271609N123-001ND
2016-10-11701631002ND
2016-10-18702260002ND
2016-10-25702831003-POCSND
2016-11-01703349003ND
2016-11-09704078001-POCSND
2016-11-15704511001-POCSND
2016-12-06706057001ND
2016-12-13706671001ND
2016-12-20707261001ND
2017-01-03708099001ND
2017-01-10708686002ND
2017-01-17709190001ND
2017-02-077010705001ND
2017-02-147011216001ND
2017-02-217011678001ND
2017-02-217011678001-POCSND
2017-03-077012741001ND
2017-03-137013273001ND
2017-03-217013753001ND
2017-04-047014819002ND
2017-04-117015451003-POCSND
2017-04-187016159002ND
2017-05-027017414001ND
2017-05-097018088001ND
2017-05-157018586001ND
2017-06-067020417002-POCSND
2017-06-137021172001-POCSND
2017-06-20702837001-POCSND
2017-07-037023031001-POCSND
2017-07-107023518002-POCSND
2017-07-187024465001ND
2017-08-017025766001-POCSND
2017-08-087026448001ND
2017-08-157027184001ND
2017-09-057028825001-POCSND
2017-09-127029624001-POCSND
2017-09-197030352001-POCSND
2017-10-037031683001ND
2017-10-107032362001-POCSND
2017-10-177033087001-POCSND
2017-11-087035129001-POCSND
2017-11-147035629001ND
2017-11-217036261001-POCSND
2017-12-057037196001-POCSND
2017-12-127037873001-POCSND
2017-12-197038520001ND
2018-01-027039420002POCSND
2018-01-097039886001-POCSND
2018-01-237041060002-POCSND
2018-02-067042084001-POCSND
2018-02-137042736001-POCSND
2018-02-207043349001-POCSND
2018-03-067044522001-POCSND
2018-03-137045138001-POCSND
2018-03-217045887001-POCSND
2018-04-037046962001ND
2018-04-107047800001ND
2018-04-177048611001ND
2018-05-017050010001-POCSND
2018-05-087050960001-POCSND
2018-05-157051696001-POCSND
2018-06-057053650001-POCSND
2018-06-127054595001-POCSND
2018-07-037057062001-POCSND
2018-07-107057626001-POCSND
2018-07-177058459002-POCSND
2018-08-077060608001-POCSND
2018-08-147061441003-POCSND
2018-08-217062236001-POCSND
2018-09-047063515001-POCSND
2018-09-107064182001-POCSND
2018-09-187065171001-POCSND
2018-10-027066551001-POCSND
2018-10-097067228002-POCSND
2018-10-167068040002ND
2018-11-057069972001-POCSND
2018-11-137070806001-POCSND
2018-11-207071627001-POCSND
2018-12-117073531001-POCSND
2018-12-187074235001-POCSND
2019-01-027075227001ND
2019-01-087075823001ND
2019-01-157076589001ND
2019-02-057078455001-POCSND
2019-02-197079967001-POCSND
2019-03-057081236001ND
2019-03-127082034001ND
2019-04-027084246001-POCSND
2019-04-097085097002-POCSND
2019-05-147089369001-POCSND
2019-05-227090411001-POCSND
2019-06-047091918001ND
2019-06-117093100001-POCSND
2019-07-027096087001ND
2019-07-097096701002ND
2019-07-237098510003-POCSND
2019-08-0670100128001-POCSND
2019-08-2070102065001-POCSND
2019-09-0370103425001ND
2019-09-1070104362001-POCSND
2019-09-1770105237001-POCSND
2019-10-0270106988001-POCSND
2019-10-0870107642002ND
2019-10-1570108487001-POCSND
2019-11-0470110526001ND
2019-11-1270111430001ND
2019-11-1970112330001ND
2019-12-0370113806001ND
2019-12-1070114748001ND
2019-12-1770115728001ND