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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

Harris County Municipal Utility District 144

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

ppb = parts per billion

All test results

Date Lab ID Result
2014-08-06AC62316ND
2014-08-06AC62365ND
2015-06-04AC94601ND
2015-06-04AC94702ND
2016-02-01AD21109ND
2016-02-01AD21263ND
2017-01-24AD66591ND
2017-04-18AD79970ND
2018-02-08AE13051ND
2018-02-08AE13110ND
2019-01-28AE51686ND
2019-01-28AE51774ND