Know Your Environment. Protect Your Health.

Carbon tetrachloride

Paw Penn 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.

 

56

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND100ND
2020ND110ND
2021ND80ND
2022ND80ND
2023ND110ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-01-1138161501ND
2018-01-1138161101ND
2018-01-1138161401ND
2018-01-1138161301ND
2018-01-1138161201ND
2018-04-1139072601ND
2018-07-1640207301ND
2018-10-1741961701ND
2019-01-0942499201ND
2019-01-0942499601ND
2019-01-0942499501ND
2019-01-0942499401ND
2019-01-0942499301ND
2019-04-0143658101ND
2019-07-0845016101ND
2019-07-1545716201ND
2019-10-0746831501ND
2019-10-3143999801ND
2020-01-0621542690.00ND
2020-01-0621542538.00ND
2020-01-0621542648.00ND
2020-01-0621542606.00ND
2020-01-0621542627.00ND
2020-01-0621542559.00ND
2020-01-0621542580.00ND
2020-01-1521542669.00ND
2020-05-0622261495.00ND
2020-08-1722843892.00ND
2020-10-0823224113.00ND
2021-01-1423754061.00ND
2021-01-1423754040.00ND
2021-01-1423754103.00ND
2021-01-1423754082.00ND
2021-04-1424290661.00ND
2021-04-2124290990.00ND
2021-07-0124873773.00ND
2021-10-0625448160.00ND
2022-01-0525982955.00ND
2022-01-0525982909.00ND
2022-01-0525982911.00ND
2022-01-0525982934.00ND
2022-01-0525982869.00ND
2022-04-0626506764.00ND
2022-07-0527082967.00ND
2022-10-0627684634.00ND
2023-01-0528212792.00ND
2023-01-0528212870.00ND
2023-01-0528212849.00ND
2023-01-0528212808.00ND
2023-01-0528212848.00ND
2023-01-0528212781.00ND
2023-01-0528212891.00ND
2023-04-1328749288.00ND
2023-06-0729155745.00ND
2023-07-2029346679.00ND
2023-10-1229928179.00ND