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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

Valley Municipal Utility District 2 Rancho Viejo

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-05AC45703ND
2014-03-05AC45754ND
2014-06-04AC55971ND
2014-09-24AC68087ND
2015-03-18AC85059ND
2015-03-18AC85139ND
2016-03-07AD27382ND
2016-07-28AD46210ND
2017-03-01AD72795ND
2017-03-01AD72873ND
2018-02-21AE14839ND
2018-04-25AE23964ND
2019-02-07AE53625ND
2019-05-09AE65715ND