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EWG's Tap Water Database — 2019 UPDATE

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Naphthalene

San Antonio Water System Northeast

Naphthalene is a polycyclic aromatic hydrocarbon, or PAH, released from combustion of fossil fuels and waste incinerators, and also used as a moth repellent. PAHs increase the risk of cancer; damage the immune, nervous and reproductive systems; and can harm developing fetuses.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND10ND
2014ND20ND
2015ND70ND
2016N/A00N/A
2017ND30ND

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
2014-09-02AC65490ND
2015-07-08AC98818ND
2015-07-08AC98819ND
2015-07-08AC98747ND
2015-07-08AC98753ND
2015-07-08AC98749ND
2015-07-09AC99017ND
2015-07-09AC98996ND
2017-12-04AE06578ND
2017-12-13AE07732ND
2017-12-13AE07674ND