Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Styrene

Prescott Valley WD Upper

Styrene is a volatile cancer-causing chemical used for manufacturing Styrofoam (polystyrene) and other plastics. Releases from industrial production sites and hazardous waste landfills cause styrene contamination in drinking water. Read More.

In addition to increasing the risk of cancer, styrene can also damage the liver and the nervous system. California set a public health goal for styrene in drinking water at 0.5 parts per billion. The federal Maximum Contaminant Level (MCL) allows up to 100 parts per billion of styrene in water, which is 200 times more than the California recommended level.

Click here to read more about carcinogenic VOCs.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND60ND
2013ND80ND
2014ND50ND
2015N/A00N/A
2016ND60ND
2017ND50ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for styrene 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) 100 ppb

The legal limit for styrene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1970s. This limit may not fully protect against the risk of cancer due to styrene exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-31201202010049VND
2012-01-31201202010048VND
2012-01-31201202010047VND
2012-01-31201202010046VND
2012-01-31201202010044VND
2012-11-262111802-01VND
2013-02-14201302150332VND
2013-02-14201302150331VND
2013-02-14201302150330VND
2013-02-14201302150329VND
2013-02-14201302150328VND
2013-02-14201302150327VND
2013-02-14201302150326VND
2013-10-16201310170112VND
2014-01-15201401150464VND
2014-01-15201401150463VND
2014-01-15201401150462VND
2014-01-15201401150461VND
2014-01-15201401150459VND
2016-02-09201602100057VND
2016-02-09201602100056VND
2016-02-09201602100055VND
2016-02-10201602110030VND
2016-02-10201602110029VND
2016-02-10201602110028VND
2017-02-14201702150185VND
2017-02-14201702150190VND
2017-02-14201702150189VND
2017-02-14201702150188VND
2017-02-14201702150187VND