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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

High Meadows Ranch Water Supply

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND20ND
2016ND40ND
2017ND100ND
2018ND30ND
2019ND50ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-06-25AC58033ND
2015-07-07AC98573ND
2015-07-07AC98561ND
2016-12-09AD62026ND
2016-12-09AD62027ND
2016-12-09AD61950ND
2016-12-09AD61948ND
2017-02-10AD70492ND
2017-03-15AD75196ND
2017-03-15AD75194ND
2017-03-15AD75192ND
2017-05-01AD81868ND
2017-05-01AD81987ND
2017-07-28AD91477ND
2017-07-28AD91365ND
2017-11-16AE05243ND
2017-11-16AE05196ND
2018-04-09AE21724ND
2018-04-09AE21718ND
2018-04-09AE21716ND
2019-11-18AE89591ND
2019-11-18AE89655ND
2019-11-18AE89654ND
2019-11-18AE89593ND
2019-11-18AE89595ND