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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

Manchester Water District

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
2015ND60ND
2016ND50ND
2017ND10ND
2018ND10ND
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-06-2401536ND
2014-10-0802939ND
2015-04-2001109ND
2015-04-2801211ND
2015-07-1402942ND
2015-07-1402941ND
2015-08-1804135ND
2015-10-1905949ND
2016-02-18ND
2016-05-16ND
2016-07-18ND
2016-11-08ND
2016-12-29ND
2017-03-28ND
2018-10-02ND