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EWG's Tap Water Database — 2019 UPDATE

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Styrene

United Wappinger Water Improvement District

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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND90ND
2013ND90ND
2014ND80ND
2015N/A00N/A
2016ND80ND
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
2012-02-14SU12307ND
2012-02-29CM12388ND
2012-03-28UW12553-4ND
2012-12-05HT122232ND
2012-12-05HT122231ND
2012-12-05AT122238ND
2012-12-05AT122237ND
2012-12-05AT122235ND
2012-12-05HT122233ND
2013-06-05MB13982DND
2013-06-05MB13985DND
2013-12-04AT132305ND
2013-12-04HT132309ND
2013-12-04AT132303ND
2013-12-04HT132310ND
2013-12-04AT132306ND
2013-12-04AT132304ND
2013-12-04HT132308ND
2014-12-0912101426HND
2014-12-0912101426VND
2014-12-0912101427FND
2014-12-0912101427KND
2014-12-0912101426KND
2014-12-0912101426GND
2014-12-0912101426PND
2014-12-0912101427RND
2016-11-29UW164139ND
2016-11-29UW164145ND
2016-11-29UW164143ND
2016-11-29UW164137ND
2016-11-30UW164254FND
2016-11-30UW164251FND
2016-11-30UW164252FND
2016-11-30UW164253FND
2017-11-28UW172961FND
2017-11-28UW172958FND
2017-11-28UW172963FND
2017-11-28UW172959FND
2017-11-28UW172962FND