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EWG's Tap Water Database — 2021 UPDATE

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Naphthalene

Western MWD (Arlington)

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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61

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND70ND
2015ND100ND
2016ND130ND
2017ND70ND
2018ND210ND
2019ND30ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-064790-009-1130ND
2014-02-034790-008-1130ND
2014-02-034790-007-1115ND
2014-05-054790-009-1345ND
2014-05-054790-008-1115ND
2014-05-124790-007-1000ND
2014-08-054790-007-1400ND
2015-02-094790-009-1130ND
2015-02-094790-008-0945ND
2015-02-094790-007-0930ND
2015-02-184790-009-1400ND
2015-05-044790-008-1450ND
2015-05-044790-007-1350ND
2015-08-044790-007-1310ND
2015-08-044790-008-1320ND
2015-11-024790-007-1250ND
2015-11-024790-008-1240ND
2016-02-124790-009-1030ND
2016-02-134790-001-0930ND
2016-02-134790-005-1030ND
2016-02-134790-004-1010ND
2016-02-134790-003-0950ND
2016-03-294790-002-0705ND
2016-05-024790-007-1120ND
2016-05-024790-008-1140ND
2016-08-014790-008-0945ND
2016-08-014790-007-0930ND
2016-11-014790-009-1120ND
2016-11-014790-007-0900ND
2016-11-014790-008-0930ND
2017-02-064790-009-1030ND
2017-05-014790-007-1252ND
2017-05-014790-008-1441ND
2017-08-014790-007-1005ND
2017-08-014790-008-1110ND
2017-11-074790-007-0845ND
2017-11-074790-008-0900ND
2018-02-214790-007-1100ND
2018-02-214790-008-1200ND
2018-02-214790-009-0900ND
2018-02-274790-001-1130ND
2018-02-274790-002-1145ND
2018-02-274790-003-1200ND
2018-02-274790-004-1215ND
2018-02-274790-005-1230ND
2018-05-144790-008-1055ND
2018-05-144790-007-1010ND
2018-05-294790-007-1450ND
2018-05-294790-005-1605ND
2018-05-294790-004-1555ND
2018-05-294790-003-1545ND
2018-05-294790-002-1535ND
2018-05-294790-001-1525ND
2018-06-044790-009-1130ND
2018-08-284790-008-0930ND
2018-08-294790-007-1300ND
2018-11-054790-007-1000ND
2018-11-054790-008-1100ND
2019-03-044790-008-1250ND
2019-03-044790-009-1235ND
2019-03-044790-007-1315ND