Know Your Environment. Protect Your Health.

Carbon tetrachloride

Mills Mobile Home Park 1&2

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND30ND
2020ND30ND
20210.173 ppb41ND - 0.690 ppb
2022ND40ND
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
2019-01-10AE23871ND
2019-09-18AE37405ND
2019-12-03AE40976ND
2020-05-26AE48964ND
2020-08-19AE53092ND
2020-11-04AE56847ND
2021-02-23AE61680ND
2021-05-25AE66392ND
2021-08-31AE711900.690 ppb
2021-11-03AE74428ND
2022-03-10AE80559ND
2022-05-26AE84350ND
2022-08-03AE87586ND
2022-10-27AE92192ND
2023-03-06AE98035ND
2023-05-25AF02667ND
2023-08-07AF06654ND
2023-09-26AF09044ND
2023-10-24AF10543ND