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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

Harris County MUD 55 Heritage Park

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.

 

22

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
2014ND20ND
2015ND40ND
2016ND40ND
2017ND40ND
2018ND40ND
2019ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-14AC43200ND
2014-02-14AC43198ND
2015-01-16AC76661ND
2015-01-16AC76660ND
2015-01-16AC76640ND
2015-01-16AC76642ND
2016-02-10AD23096ND
2016-05-11AD36488ND
2016-06-20AD41244ND
2016-06-20AD41191ND
2017-01-25AD66939ND
2017-01-25AD66804ND
2017-05-24AD85577ND
2017-05-24AD85492ND
2018-01-23AE09965ND
2018-01-23AE09964ND
2018-01-23AE09858ND
2018-01-23AE09856ND
2019-02-26AE56014ND
2019-02-26AE56118ND
2019-02-26AE56111ND
2019-02-26AE56012ND