Naphthalene
Medina Valley Water Supply Company
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.
9
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 | 1 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-04-13 | AE22523 | ND |
| 2019-10-02 | AE85696 | ND |
| 2019-10-02 | AE85709 | ND |
| 2020-07-06 | AF18178 | ND |
| 2021-11-16 | AF76814 | ND |
| 2022-10-13 | AG17030 | ND |
| 2022-10-13 | AG17088 | ND |
| 2023-03-28 | AG34421 | ND |
| 2023-05-30 | AG42354 | ND |