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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

City of Houston Utility District 5 - Kingwood

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.

MORE ABOUT THIS CONTAMINANT

 

51

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
2014ND40ND
2015ND100ND
2016ND70ND
2017ND70ND
2018ND90ND
2019ND140ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-19AC47591ND
2014-05-30AC55685ND
2014-08-15AC64084ND
2014-08-15AC63963ND
2015-01-16AC76657ND
2015-01-16AC76648ND
2015-06-08AC94934ND
2015-06-08AC94924ND
2015-06-08AC94940ND
2015-06-08AC94926ND
2015-06-08AC94920ND
2015-06-08AC95035ND
2015-06-08AC95034ND
2015-06-08AC95033ND
2016-01-13AD17915ND
2016-01-13AD17907ND
2016-01-13AD17909ND
2016-03-09AD28037ND
2016-03-09AD27893ND
2016-03-09AD27891ND
2016-04-05AD31891ND
2017-01-11AD64338ND
2017-01-11AD64340ND
2017-04-27AD81532ND
2017-04-27AD81591ND
2017-04-27AD81610ND
2017-04-27AD81542ND
2017-06-28AD88042ND
2018-01-31AE12002ND
2018-01-31AE12023ND
2018-01-31AE12003ND
2018-01-31AE11903ND
2018-01-31AE11909ND
2018-01-31AE11915ND
2018-01-31AE11999ND
2018-01-31AE11913ND
2018-01-31AE11911ND
2019-01-22AE50788ND
2019-01-22AE50726ND
2019-01-22AE50716ND
2019-01-22AE50744ND
2019-01-22AE50732ND
2019-01-22AE50730ND
2019-03-12AE58135ND
2019-03-12AE58060ND
2019-04-11AE62162ND
2019-04-11AE62096ND
2019-07-22AE75409ND
2019-07-22AE75326ND
2019-10-11AE86479ND
2019-10-11AE86503ND