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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

Portage Waterworks

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND10ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-21419876ND
2014-01-21419878ND
2015-01-26549689ND
2016-01-11679225ND
2016-02-01685988ND
2017-01-03824523ND
2017-01-03824505ND
2018-02-05980450ND
2018-02-05980451ND
2019-01-07229921ND
2019-01-07229920ND