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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

City of Weslaco

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
2014-01-29AC40684ND
2014-07-23AC60686ND
2015-01-23AC77713ND
2015-07-14AC99431ND
2016-06-07AD39646ND
2016-07-14AD44289ND
2017-02-09AD70104ND
2017-08-03AD92064ND
2018-02-15AE14222ND
2018-08-15AE37204ND
2019-02-27AE56373ND
2019-08-22AE80248ND