Know Your Environment. Protect Your Health.

Carbon tetrachloride

Minden Water System

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.

 

59

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND220ND
2019N/A00N/A
2020N/A00N/A
2021ND90ND
2022ND250ND
2023ND30ND

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
2018-06-2535400742009ND
2018-06-2535400742008ND
2018-06-2535400742001ND
2018-06-2535400742002ND
2018-06-2535400742005ND
2018-06-2535400742006ND
2018-06-2535400742007ND
2018-06-2535400742008ND
2018-06-2535400742009ND
2018-06-2535400742007ND
2018-06-2535400742006ND
2018-06-2535400742005ND
2018-06-2535400742002ND
2018-06-2535400742001ND
2018-07-1835405388002ND
2018-07-1835405388001ND
2018-07-1835405388004ND
2018-07-1835405388003ND
2018-07-1835405388002ND
2018-07-1835405388001ND
2018-07-1835405388004ND
2018-07-1835405388003ND
2021-04-1335626547005ND
2021-04-1335626547004ND
2021-04-1335626547003ND
2021-04-1335626547002ND
2021-04-1335625915003ND
2021-04-1335625915002ND
2021-04-1335625915001ND
2021-04-1335625915004ND
2021-06-1735641728002ND
2022-06-0235722181007ND
2022-06-0235722181001ND
2022-06-0235722181002ND
2022-06-0235722181003ND
2022-06-0235722181004ND
2022-06-0235722181005ND
2022-06-0235722181006ND
2022-06-0235722181008ND
2022-06-0235722181009ND
2022-06-0235722183001ND
2022-06-0235722183002ND
2022-06-0735723468003ND
2022-06-0735723468005ND
2022-06-0735723468004ND
2022-06-0735723468002ND
2022-09-1435747184002ND
2022-09-1435747184001ND
2022-09-1435747182008ND
2022-09-1435747182007ND
2022-09-1435747182006ND
2022-09-1435747182005ND
2022-09-1435747182004ND
2022-09-1435747182003ND
2022-09-1435747182002ND
2022-09-1435747182001ND
2023-12-1435849777001ND
2023-12-1435849777002ND
2023-12-1435849777003ND