Naphthalene
Madera Valley Water Supply Corporation
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.
19
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 | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-07-18 | Q1828958012 | ND |
| 2018-07-18 | Q1828958014 | ND |
| 2018-07-18 | Q1828958010 | ND |
| 2019-06-20 | Q1938291004 | ND |
| 2019-06-20 | Q1938291006 | ND |
| 2019-06-20 | Q1938291008 | ND |
| 2020-08-17 | Q2033215001 | ND |
| 2020-08-17 | Q2033215003 | ND |
| 2020-08-17 | Q2033215005 | ND |
| 2020-12-02 | Q2048267001 | ND |
| 2021-03-15 | Q2106895001 | ND |
| 2021-03-15 | Q2106895003 | ND |
| 2021-09-13 | Q2125100003 | ND |
| 2022-02-07 | Q2204392003 | ND |
| 2022-02-07 | Q2204392005 | ND |
| 2022-08-31 | Q2225814003 | ND |
| 2023-04-20 | Q2314887001 | ND |
| 2023-04-20 | Q2314887003 | ND |
| 2023-08-30 | Q2337553001 | ND |