Know Your Environment. Protect Your Health.

Naphthalene

King County Water District No 90

NOTE: King County Water District No 90 purchases water from Seattle Public Utilities which is required to test for naphthalene. Sample information shown below was taken by Seattle Public Utilities.

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.

 

2

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022ND10ND
2023ND20ND

ppb = parts per billion

All test results

NOTE: King County Water District No 90 purchases water from Seattle Public Utilities which is required to test for naphthalene. Sample information shown below was taken by Seattle Public Utilities.

Date Lab ID Result
2023-08-154542962ND
2023-08-154542961ND