Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Naphthalene

Benton - Washington 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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-1114072007507ND
2014-04-0114092001309ND
2014-04-3014122002601ND
2015-04-0715099002201ND
2016-04-2016112008401ND
2017-04-1817110001209ND
2017-04-1817110001207ND
2018-05-1518137013001ND
2018-07-3118213008801ND
2018-10-2418298011801ND
2019-01-0919010016401ND
2019-04-0219093000801ND