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EWG's Tap Water Database — 2019 UPDATE

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Carbon tetrachloride

City of Lake Charles 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.

 

72

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND340ND
2013N/A00N/A
2014N/A00N/A
2015ND320ND
2016N/A00N/A
2017ND60ND

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
2012-04-30AD65282ND
2012-04-30AD65282ND
2012-04-30AD65283ND
2012-04-30AD65284ND
2012-04-30AD65285ND
2012-04-30AD65286ND
2012-04-30AD65286ND
2012-04-30AD65285ND
2012-04-30AD65283ND
2012-04-30AD65284ND
2012-05-29AD65742ND
2012-05-29AD65743ND
2012-05-29AD65745ND
2012-05-29AD65744ND
2012-05-29AD65746ND
2012-05-29AD65745ND
2012-05-29AD65743ND
2012-05-29AD65746ND
2012-05-29AD65742ND
2012-05-29AD65744ND
2012-07-23AD67957ND
2012-07-23AD67956ND
2012-07-23AD67958ND
2012-07-23AD67960ND
2012-07-23AD67959ND
2012-07-23AD67958ND
2012-07-23AD67960ND
2012-07-23AD67959ND
2012-07-23AD67957ND
2012-07-23AD67956ND
2012-10-08AD71685ND
2012-10-08AD71683ND
2012-10-08AD71685ND
2012-10-08AD71683ND
2015-03-2335180731004ND
2015-03-2335180731003ND
2015-03-2335180731002ND
2015-03-2335180731005ND
2015-03-2335180731005ND
2015-03-2335180731001ND
2015-03-2335180731001ND
2015-03-2335180731002ND
2015-03-2335180731003ND
2015-03-2335180731004ND
2015-07-2735199384005ND
2015-07-2735199384001ND
2015-07-2735199384004ND
2015-07-2735199384003ND
2015-07-2735199384002ND
2015-07-2735199384002ND
2015-07-2735199384003ND
2015-07-2735199384004ND
2015-07-2735199384005ND
2015-07-2735199384001ND
2015-08-1035201689001ND
2015-08-1035201689004ND
2015-08-1035201689005ND
2015-08-1035201689002ND
2015-08-1035201689005ND
2015-08-1035201689004ND
2015-08-1035201689003ND
2015-08-1035201689001ND
2015-08-1035201689002ND
2015-08-1035201689003ND
2015-09-2135208328005ND
2015-09-2135208328005ND
2017-12-1835365007003ND
2017-12-1835365007001ND
2017-12-1835365007001ND
2017-12-1835365007002ND
2017-12-1835365007003ND
2017-12-1835365007002ND