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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

Montgomery County Municipal Utility District 18

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND40ND
2016ND10ND
2017ND10ND
2018ND40ND
2019ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2015-07-21AD00413ND
2015-07-21AD00419ND
2015-11-23AD14484ND
2015-11-23AD14486ND
2016-10-18AD53574ND
2017-10-26AE02441ND
2018-08-02AE35594ND
2018-08-02AE35596ND
2018-08-02AE35678ND
2018-08-02AE35679ND
2019-08-28AE81410ND