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EWG's Tap Water Database — 2019 UPDATE

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Carbon tetrachloride

Smyrna 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.

 

61

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND30ND
2014ND70ND
2015ND160ND
2016ND190ND
2017ND160ND

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
2013-11-20S505052ND
2013-11-20S505051ND
2013-11-20S536645ND
2014-08-27S575447ND
2014-08-27S575446ND
2014-08-27S575442ND
2014-12-04S590000ND
2014-12-04S589999ND
2014-12-04S590001ND
2014-12-04S590002ND
2015-03-31S614668ND
2015-03-31S614667ND
2015-03-31S614666ND
2015-03-31S614665ND
2015-06-30S637161ND
2015-06-30S637158ND
2015-06-30S637159ND
2015-06-30S637160ND
2015-09-30S637282ND
2015-09-30S637281ND
2015-09-30S637280ND
2015-09-30S637279ND
2015-12-21S628966ND
2015-12-21S628967ND
2015-12-21S628968ND
2015-12-21S628969ND
2016-03-31S677079ND
2016-03-31S677078ND
2016-03-31S677077ND
2016-03-31S677076ND
2016-06-29S679276ND
2016-06-29S679275ND
2016-06-29S679274ND
2016-06-29S679273ND
2016-09-29S694841ND
2016-09-29S694840ND
2016-09-29S694839ND
2016-09-29S694838ND
2016-10-11S719480ND
2016-10-11S719481ND
2016-10-11S719482ND
2016-12-14S719729ND
2016-12-14S719728ND
2016-12-14S719727ND
2016-12-14S719726ND
2017-03-30S6720621ND
2017-03-30S720620ND
2017-03-30S720622ND
2017-03-30S720623ND
2017-06-28S738586ND
2017-06-28S738585ND
2017-06-28S738584ND
2017-06-28S738583ND
2017-09-27S760209ND
2017-09-27S760211ND
2017-09-27S760213ND
2017-09-27S760215ND
2017-12-19S782078ND
2017-12-19S782076ND
2017-12-19S782074ND
2017-12-19S782072ND