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EWG's Tap Water Database — 2021 UPDATE

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Styrene

Telford Borough Authority

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.

MORE ABOUT THIS CONTAMINANT

 

86

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND140ND
2015ND140ND
2016ND160ND
2017ND140ND
2018ND140ND
2019ND140ND

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
2014-02-1120140538ND
2014-02-1120140540ND
2014-02-1120140539ND
2014-04-0220141150ND
2014-04-0220141147ND
2014-04-0220141149ND
2014-04-0220141148ND
2014-06-0320141878ND
2014-07-1620142431ND
2014-07-1620142433ND
2014-07-1620142432ND
2014-11-0514110360-003ND
2014-11-0514110360-002ND
2014-11-0514110360-001ND
2015-02-1112403531ND
2015-02-1112403573ND
2015-02-1112403552ND
2015-04-1412635052ND
2015-04-1412634968ND
2015-04-1412635031ND
2015-04-1412634989ND
2015-04-1412635010ND
2015-07-1413014721ND
2015-07-1413014723ND
2015-07-1413014722ND
2015-10-0713390829ND
2015-10-0713390808ND
2015-10-0713390787ND
2016-01-1813754477ND
2016-03-0213871967ND
2016-03-0213871946ND
2016-04-1314104842ND
2016-04-1314104926ND
2016-04-1314104884ND
2016-04-1314104905ND
2016-04-1314104863ND
2016-07-1314572215ND
2016-07-1314572269ND
2016-07-1314572317ND
2016-07-1314572296ND
2016-07-1314572242ND
2016-10-1215077684ND
2016-10-1215077726ND
2016-10-1215077705ND
2017-02-1515657734ND
2017-02-1515657713ND
2017-02-1515657755ND
2017-05-0316097083ND
2017-05-0316097062ND
2017-05-0316096999ND
2017-05-0316097041ND
2017-05-0316097020ND
2017-08-0216568610ND
2017-08-0216568589ND
2017-08-0216568568ND
2017-11-0117025497ND
2017-11-0117025476ND
2017-11-0117025518ND
2018-02-1220180562ND
2018-02-1220180561ND
2018-02-1220180560ND
2018-05-0320181778ND
2018-05-0320181777ND
2018-05-0320181776ND
2018-05-0320181775ND
2018-05-0320181774ND
2018-08-0120182931ND
2018-08-0120182933ND
2018-08-0120182932ND
2018-11-278114737-01ND
2018-11-278114737-02ND
2018-11-278114737-03ND
2019-02-0620190503ND
2019-02-0620190505ND
2019-02-0620190504ND
2019-05-0120191635ND
2019-05-0120191636ND
2019-05-0120191633ND
2019-05-0120191634ND
2019-05-0120191637ND
2019-08-0720193060ND
2019-08-0720193062ND
2019-08-0720193061ND
2019-11-0620194361ND
2019-11-0620194363ND
2019-11-0620194362ND