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EWG's Tap Water Database — 2019 UPDATE

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Tetrahydrofuran

San Antonio Water System Northeast

Tetrahydrofuran is a solvent used for production of polyvinyl chloride (PVC) plastics and adhesives.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND10ND
2014ND10ND
2015ND40ND
2016N/A00N/A
20173.80 ppb21ND - 7.60 ppb

ppb = parts per billion

All test results

Date Lab ID Result
2012-05-211205665012ND
2012-05-211205665010ND
2012-05-211205665008ND
2013-11-21AC35848ND
2014-09-02AC65451ND
2015-07-08AC98747ND
2015-07-08AC98753ND
2015-07-08AC98749ND
2015-07-09AC98996ND
2017-12-04AE06578ND
2017-12-13AE076747.60 ppb