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EWG's Tap Water Database — 2019 UPDATE

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Naphthalene

City of Kerrville

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.

 

50

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.90 ppb31ND - 5.71 ppb
2013ND40ND
2014ND30ND
2015ND110ND
2016ND80ND
2017ND210ND

ppb = parts per billion

All test results

Date Lab ID Result
2012-04-041204117005ND
2012-07-251207951005ND
2012-10-0412102280055.71 ppb
2013-01-23AC08576ND
2013-04-11AC16513ND
2013-07-29AC26123ND
2013-07-29AC26104ND
2014-02-10AC42045ND
2014-07-16AC59841ND
2014-10-15AC69763ND
2015-01-28AC78283ND
2015-01-28AC78284ND
2015-04-15AC88380ND
2015-04-15AC88477ND
2015-07-20AD00201ND
2015-07-20AD00203ND
2015-08-14AD04430ND
2015-08-14AD04452ND
2015-08-14AD04428ND
2015-08-14AD04432ND
2015-08-14AD04451ND
2016-02-01AD21266ND
2016-02-01AD21273ND
2016-02-01AD21129ND
2016-04-18AD33348ND
2016-07-05AD42974ND
2016-07-05AD42962ND
2016-10-24AD54448ND
2016-10-24AD54358ND
2017-02-13AD70497ND
2017-04-06AD78768ND
2017-05-08AD83086ND
2017-05-08AD83088ND
2017-05-08AD83181ND
2017-05-09AD83355ND
2017-05-09AD83359ND
2017-05-09AD83357ND
2017-05-09AD83439ND
2017-05-09AD83440ND
2017-07-05AD88339ND
2017-07-05AD88333ND
2017-07-05AD88335ND
2017-07-05AD88337ND
2017-07-05AD88367ND
2017-07-05AD88369ND
2017-07-05AD88368ND
2017-10-09AD99914ND
2017-10-09AD99915ND
2017-10-09AD99820ND
2017-10-09AD99818ND