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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

San Patricio Municipal Water District

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-24AC51758ND
2014-09-16AC67104ND
2015-02-25AC81940ND
2015-09-10AD06600ND
2016-03-16AD29225ND
2016-07-20AD45239ND
2017-03-09AD74468ND
2017-09-13AD96017ND
2018-02-13AE13860ND
2018-08-23AE38453ND
2019-02-27AE56374ND
2019-08-06AE77289ND