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EWG's Tap Water Database — 2019 UPDATE

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Styrene

City of Grand Prairie

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.

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013N/A00N/A
2014ND80ND
2015ND80ND
2016ND80ND
2017ND60ND

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
2012-08-131208543010ND
2014-04-23Q1412991001ND
2014-06-04Q1419331002ND
2014-06-26Q1424023040ND
2014-06-26Q1424023005ND
2014-06-26Q1424023003ND
2014-06-26Q1424023002ND
2014-09-10Q1442991002ND
2014-09-10Q1442991005ND
2015-03-11Q1509064001ND
2015-06-09Q1521042004ND
2015-07-14Q1526936007ND
2015-07-14Q1526936006ND
2015-07-14Q1526936003ND
2015-07-14Q1526936001ND
2015-10-07Q1539391012ND
2015-10-07Q1539391014ND
2016-01-14Q1601729018ND
2016-01-14Q1601729016ND
2016-01-14Q1601729014ND
2016-01-14Q1601729011ND
2016-03-01Q1608611002ND
2016-07-14Q1628712002ND
2016-10-05Q1642114002ND
2016-12-05Q1652555001ND
2017-01-05Q1700632002ND
2017-01-05Q1700632016ND
2017-06-27Q1726535024ND
2017-06-27Q1726535014ND
2017-06-27Q1726535021ND
2017-06-27Q1726535020ND