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EWG's Tap Water Database — 2019 UPDATE

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Vinyl chloride

City of Beeville

Vinyl chloride is a known human carcinogen used for production of polyvinyl chloride (PVC) plastics. Discharges from plastics manufacturing can contaminate drinking water with vinyl chloride. Read More.

Exposure to vinyl chloride increases the risk of cancer and can damage the liver and nervous system. The California public health goal of 0.05 parts per billion, set to protect against cancer, is 40 times lower than the amount allowed by the federal government, which is a Maximum Contaminant Level of 2 parts per billion.

Plastic pipes made of polyvinyl chloride (PVC) and chlorinated PVC (CPVC) are widely used for drinking water distribution lines and internal plumbing, raising concern about vinyl chloride contamination of drinking water. A study published in 2011 by Ryan Walter of Cornell University School of Civil and Environmental Engineering suggested that small amounts of vinyl chloride can leach from PVC pipes. Vinyl chloride can also form in the pipes as a result of water disinfection with chlorine.

In an assessment completed in 2000, California Office of Environmental Health Hazard Assessment stated that drinking water is not a significant source of exposure to vinyl chloride for the general population.

Click here to read more about carcinogenic VOCs.

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND50ND
2013ND170ND
2014ND10ND
2015ND10ND
2016ND40ND
2017ND10ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.05 ppb

The EWG Health Guideline of 0.05 ppb for vinyl chloride 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) 2 ppb

The legal limit for vinyl chloride, established in 1987, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to vinyl chloride exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2012-09-101209223001ND
2012-11-14AC05175ND
2012-11-14AC05179ND
2012-11-14AC05178ND
2012-11-14AC05177ND
2013-02-20AC11004ND
2013-02-20AC11005ND
2013-02-20AC11016ND
2013-02-20AC11015ND
2013-04-24AC17670ND
2013-04-24AC17669ND
2013-04-24AC17668ND
2013-04-24AC17667ND
2013-09-04AC29117ND
2013-09-04AC29116ND
2013-09-04AC29124ND
2013-09-04AC29120ND
2013-09-04AC29190ND
2013-10-15AC32075ND
2013-10-15AC32072ND
2013-10-15AC32081ND
2013-10-15AC32074ND
2014-07-28AC61118ND
2015-07-09AC98994ND
2016-03-07AD27256ND
2016-04-06AD32107ND
2016-07-14AD44307ND
2016-10-11AD52995ND
2017-01-10AD64016ND