Naphthalene
Zapata County Waterworks SWTP
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.
12
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 | ND | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-06-11 | AC56556 | ND |
| 2014-08-19 | AC64290 | ND |
| 2015-03-18 | AC85136 | ND |
| 2015-09-17 | AD07581 | ND |
| 2016-02-01 | AD21261 | ND |
| 2016-07-20 | AD44991 | ND |
| 2017-01-23 | AD66601 | ND |
| 2017-09-07 | AD95182 | ND |
| 2018-03-19 | AE18945 | ND |
| 2018-07-18 | AE33800 | ND |
| 2019-03-14 | AE58518 | ND |
| 2019-08-21 | AE79902 | ND |