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EWG's Tap Water Database — 2019 UPDATE

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1,3-Butadiene

Cary

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND160ND
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.0103 ppb

The EWG Health Guideline of 0.0103 ppb for 1,3-butadiene was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2013-05-14719803-8896ND
2013-05-14719801-8831ND
2013-05-14719799-8831ND
2013-05-20720658-8896ND
2013-05-20720656-8896ND
2013-05-20720660-8896ND
2013-05-21721078-8898ND
2013-05-21721076-8898ND
2013-11-18759581-10309ND
2013-11-18759579-10309ND
2013-11-18759464-10309ND
2013-11-18759462-10309ND
2013-11-18759466-10309ND
2013-11-22760430-10340ND
2013-11-22760428-10340ND
2013-11-22760426-10340ND