Naphthalene
Walnut Springs
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 |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-09-28 | AD08736 | ND |
| 2015-09-28 | AD08732 | ND |
| 2016-06-15 | AD40764 | ND |
| 2016-06-15 | AD40752 | ND |
| 2016-06-15 | AD40826 | ND |
| 2016-06-15 | AD40827 | ND |
| 2017-09-08 | AD95441 | ND |
| 2017-09-08 | AD95437 | ND |
| 2018-04-02 | AE20875 | ND |
| 2018-04-02 | AE20869 | ND |
| 2019-11-07 | AE88913 | ND |
| 2019-11-07 | AE88919 | ND |
| 2019-11-07 | AE88972 | ND |
| 2019-11-07 | AE88971 | ND |