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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

Madison Water Works

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.

 

15

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
2018ND50ND
2019ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-10-14L727671-1ND
2014-10-23L729555-1ND
2015-12-09L806002-001ND
2015-12-09L806002-002ND
2016-11-09L871807-2ND
2016-11-09L871807-1ND
2017-10-11L943310-1ND
2017-10-11L943310-2ND
2018-01-08L961798-1ND
2018-01-22L964821-1ND
2018-04-09L984270-1ND
2018-08-08L1016297-01ND
2018-11-01L1040607-01ND
2019-02-20L1072415-01ND
2019-02-20L1072415-01AND