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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

East Rio Hondo WSC

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND60ND
2019ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-06AC46051ND
2014-09-09AC66293ND
2015-03-18AC85143ND
2015-09-23AD08313ND
2016-02-25AD25886ND
2016-09-27AD51521ND
2017-03-03AD73527ND
2017-09-07AD95168ND
2018-02-01AE12005ND
2018-08-28AE38710ND
2018-08-28AE38704ND
2018-09-25AE41524ND
2018-11-29AE47434ND
2018-11-29AE47404ND
2019-01-10AE49353ND
2019-02-19AE55149ND
2019-06-06AE69479ND
2019-06-06AE69539ND