Naphthalene

City of Waco

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.

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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	ND	7	ND
2015	ND	5	ND
2016	ND	6	ND
2017	ND	7	ND
2018	ND	4	ND
2019	ND	4	ND

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-02-12	AC42628	ND
2014-02-12	AC42626	ND
2014-02-12	AC42627	ND
2014-02-12	AC42617	ND
2014-08-04	AC61951	ND
2014-08-04	AC61957	ND
2014-08-04	AC61953	ND
2015-02-05	AC79551	ND
2015-04-15	AC88478	ND
2015-07-07	AC98595	ND
2015-07-07	AC98597	ND
2015-10-08	AD10010	ND
2016-01-13	AD17701	ND
2016-01-13	AD17700	ND
2016-07-11	AD43615	ND
2016-07-11	AD43710	ND
2016-07-11	AD43619	ND
2016-07-11	AD43617	ND
2017-01-12	AD64890	ND
2017-01-12	AD64891	ND
2017-04-13	AD79644	ND
2017-04-13	AD79636	ND
2017-07-27	AD91148	ND
2017-07-27	AD91150	ND
2017-10-02	AD98801	ND
2018-01-09	AE08464	ND
2018-01-09	AE08463	ND
2018-07-19	AE33981	ND
2018-07-19	AE33959	ND
2019-01-23	AE51054	ND
2019-01-23	AE51053	ND
2019-07-23	AE75567	ND
2019-07-23	AE75565	ND