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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

Halfway Water Supply Corporation

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-04Q1403564001ND
2014-06-26Q1424208002ND
2014-09-03Q1441295002ND
2015-04-23Q1515199002ND
2016-03-17AD29325ND
2016-09-08Q1636368001ND
2016-09-08Q1636368003ND
2017-11-14Q1758338002ND
2017-11-14Q1758338008ND
2018-05-17Q1820244002ND
2018-05-17Q1820244004ND
2019-04-11Q1914703002ND
2019-04-11Q1914703004ND