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EWG's Tap Water Database — 2019 UPDATE

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Vinyl chloride

City of North Platte

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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND50ND
2013ND50ND
2014ND120ND
2015ND50ND
2016ND40ND
2017ND80ND

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
2012-03-20152795ND
2012-04-23166098ND
2012-04-23166099ND
2012-10-30204680ND
2012-12-12209286ND
2013-02-27215114ND
2013-05-13230208ND
2013-05-13230207ND
2013-06-05230412ND
2013-10-29265563ND
2014-02-12278459ND
2014-03-19279093ND
2014-05-19294427ND
2014-05-19294426ND
2014-06-11294429ND
2014-06-11294434ND
2014-06-11294433ND
2014-06-11294432ND
2014-06-11294431ND
2014-06-11294428ND
2014-06-11294430ND
2014-11-19328562ND
2015-01-26343308ND
2015-04-22353626ND
2015-04-22353627ND
2015-10-28391765ND
2015-12-08391766ND
2016-06-02ND
2016-06-02ND
2016-06-08ND
2016-10-25ND
2017-05-09ND
2017-05-09ND
2017-06-21ND
2017-06-21ND
2017-06-21ND
2017-06-21ND
2017-06-21ND
2017-10-02ND