Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Naphthalene

Montgomery County Regional Public Water Authority

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

ppb = parts per billion

All test results

Date Lab ID Result
2014-07-0214184005601ND
2015-07-0715191002001ND
2016-07-0516189016509ND
2016-07-0516189016507ND
2017-07-0517187012001ND
2018-07-0218186013101ND
2019-07-0919192005407ND
2019-07-0919192005409ND