Naphthalene

City of Hewitt

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
2013	N/A	0	N/A
2014	ND	1	ND
2015	ND	7	ND
2016	ND	7	ND
2017	ND	7	ND
2018	ND	9	ND
2019	ND	7	ND

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-01-14	AC38665	ND
2015-03-23	AC85765	ND
2015-03-23	AC85762	ND
2015-03-23	AC85763	ND
2015-03-23	AC85649	ND
2015-03-23	AC85645	ND
2015-03-23	AC85655	ND
2015-10-28	AD12063	ND
2016-01-20	AD19069	ND
2016-01-20	AD19002	ND
2016-01-20	AD19012	ND
2016-04-06	AD32184	ND
2016-04-06	AD32129	ND
2016-07-13	AD44165	ND
2016-10-12	AD53228	ND
2017-02-06	AD69387	ND
2017-04-03	AD78087	ND
2017-05-02	AD82274	ND
2017-07-19	AD90034	ND
2017-10-09	AD99924	ND
2017-10-09	AD99814	ND
2017-10-31	AE03236	ND
2018-02-07	AE12849	ND
2018-02-07	AE12765	ND
2018-04-19	AE23263	ND
2018-04-19	AE23265	ND
2018-04-19	AE23316	ND
2018-04-19	AE23320	ND
2018-04-19	AE23319	ND
2018-08-15	AE37254	ND
2018-11-06	AE45491	ND
2019-02-12	AE54193	ND
2019-02-12	AE54084	ND
2019-02-12	AE54098	ND
2019-02-12	AE54094	ND
2019-04-22	AE63257	ND
2019-08-26	AE80803	ND
2019-10-17	AE86974	ND