Naphthalene
Shorewood Hills Waterworks
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.
14
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | 0.0650 ppb | 2 | 1 | ND - 0.130 ppb |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-11-19 | 420369001 | ND |
| 2018-11-19 | 420372001 | ND |
| 2019-11-18 | 481795001 | ND |
| 2019-11-18 | 481819001 | ND |
| 2019-12-09 | 484892001 | ND |
| 2019-12-09 | 484891001 | ND |
| 2020-11-16 | 536139001 | ND |
| 2020-11-16 | 536137001 | ND |
| 2021-11-16 | 594754001 | ND |
| 2021-11-16 | 594760001 | ND |
| 2022-11-21 | 654126001 | ND |
| 2022-11-21 | 654127001 | ND |
| 2023-12-08 | 713887001 | ND |
| 2023-12-08 | 713883001 | 0.130 ppb |