Know Your Environment. Protect Your Health.

Carbon tetrachloride

Sky Lakes Water Supply Corporation

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND50ND
2020ND50ND
2021ND50ND
2022ND50ND
2023ND50ND

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
2018-01-09AE08411ND
2018-01-09AE08351ND
2018-04-10AE21888ND
2018-07-31AE35102ND
2018-10-23AE44310ND
2019-02-27AE56273ND
2019-02-27AE56281ND
2019-05-01AE64373ND
2019-07-23AE75575ND
2019-10-31AE88166ND
2020-03-05AF01447ND
2020-03-05AF01449ND
2020-06-16AF15557ND
2020-07-29AF21397ND
2020-12-02AF36267ND
2021-03-10AF46288ND
2021-03-10AF46290ND
2021-06-16AF58379ND
2021-08-19AF67194ND
2021-10-19AF73965ND
2022-02-08AF83727ND
2022-02-08AF83731ND
2022-05-11AF96525ND
2022-09-13AG12684ND
2022-12-16AG22192ND
2023-01-25AG26252ND
2023-01-25AG26268ND
2023-05-10AG40015ND
2023-08-25AG54325ND
2023-11-02AG62193ND