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EWG's Tap Water Database — 2019 UPDATE

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Carbon tetrachloride

Philadelphia Water 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.

 

78

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2012-02-08DW120208-001ND
2012-02-08DW120208-003ND
2012-02-08DW120208-000ND
2012-05-09DW120509-003ND
2012-05-09DW120509-000ND
2012-05-09DW120509-001ND
2012-08-15DW120815-003ND
2012-08-15DW120815-001ND
2012-08-15DW120815-000ND
2012-11-14DW121114-001ND
2012-11-14DW121114-003ND
2012-11-14DW121114-000ND
2013-02-13DW130213-000ND
2013-02-13DW130213-003ND
2013-02-13DW130213-001ND
2013-05-08DW130508-001ND
2013-05-08DW130508-003ND
2013-05-08DW130508-000ND
2013-08-14DW130814-003ND
2013-08-14DW130814-001ND
2013-08-14DW130814-000ND
2013-12-117311719ND
2013-12-117311718ND
2013-12-117311717ND
2014-02-12DW140212-000ND
2014-02-12DW140212-001ND
2014-02-12DW140212-003ND
2014-05-147468948ND
2014-05-147463348ND
2014-05-147463349ND
2014-05-147468949ND
2014-05-147463350ND
2014-05-147468950ND
2014-08-137570046ND
2014-08-137570048ND
2014-08-137570047ND
2014-11-19DW141119-019ND
2014-11-19DW141119-038ND
2014-11-19DW141119-002ND
2015-02-1112406498ND
2015-02-1112406538ND
2015-02-1112406518ND
2015-05-1312754270ND
2015-05-1312754290ND
2015-05-1312754310ND
2015-08-1213140277ND
2015-08-1213140297ND
2015-08-1213140317ND
2015-11-1813518598ND
2015-11-1813518618ND
2015-11-1813518638ND
2016-02-1013874732ND
2016-02-1013874712ND
2016-02-1013874692ND
2016-05-1114257233ND
2016-05-1114257193ND
2016-05-1114257213ND
2016-08-1014741974ND
2016-08-1014742014ND
2016-08-1014741994ND
2016-11-0915231710ND
2016-11-0915231750ND
2016-11-0915231730ND
2017-02-0815661987ND
2017-02-0815662027ND
2017-02-0815662007ND
2017-05-1016100830ND
2017-05-1016101790ND
2017-05-1016101810ND
2017-05-1016100850ND
2017-05-1016101770ND
2017-05-1016100810ND
2017-08-0916572483ND
2017-08-0916572523ND
2017-08-0916572503ND
2017-11-0817029217ND
2017-11-0817029197ND
2017-11-0817029177ND