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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

Marion Waterworks

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.

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53

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND80ND
2015ND150ND
2016ND40ND
2017ND60ND
2018ND160ND
2019ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-0514038000501ND
2014-04-0714100000501ND
2014-07-1414198000601ND
2014-07-1414198000701ND
2014-07-1414198000501ND
2014-11-1014316000501ND
2014-11-1014316000601ND
2014-11-2414330004001ND
2015-01-2715029007401ND
2015-01-2715029007302ND
2015-03-1815078000301ND
2015-06-0915161003001ND
2015-06-0915161002901ND
2015-09-1615260000509ND
2015-09-1615260000507ND
2015-09-1615260000407ND
2015-09-1615260000307ND
2015-09-1615260000309ND
2015-09-1615260000409ND
2015-11-1915324001609ND
2015-11-1915324001607ND
2015-11-1915324001907ND
2015-11-1915324001707ND
2016-02-1516049004901ND
2016-02-1516049004801ND
2016-02-1516049005001ND
2016-07-1216196006901ND
2017-01-1617019008201ND
2017-07-0317187006501ND
2017-08-0117215002201ND
2017-12-0617341002009ND
2017-12-0617341002007ND
2017-12-1917353001701ND
2018-01-1818019004301ND
2018-01-1818019004206ND
2018-01-1818019004208ND
2018-03-1218073000301ND
2018-04-1018101008307ND
2018-04-1018101008309ND
2018-08-1518228001209ND
2018-08-1518228001407ND
2018-08-1518228001107ND
2018-08-1518228001307ND
2018-08-1518228001207ND
2018-08-1518228001409ND
2018-08-1518228001309ND
2018-10-1518291006407ND
2018-10-1518291006307ND
2018-10-1518291006207ND
2019-01-0719010014801ND
2019-01-0719010014901ND
2019-07-3019212004401ND
2019-08-1919233003701ND