Know Your Environment. Protect Your Health.

Naphthalene

Colville Water Department

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.

 

8

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
2019ND10ND
2020N/A00N/A
2021N/A00N/A
2022ND20ND
2023ND50ND

ppb = parts per billion

All test results

Date Lab ID Result
2019-09-23ND
2022-08-024328652ND
2022-12-124385131ND
2023-03-234429205ND
2023-06-224480388ND
2023-09-284542957ND
2023-10-264539606ND
2023-10-264575180ND