| Sample Date | Result Flag | Result Value | Unit | |
|---|---|---|---|---|
| 2013-06-06 | 36,000 | µg/L | View Sample | |
| 2013-12-12 | 36,900 | µg/L | View Sample | |
| 2014-06-04 | 43,000 | µg/L | View Sample | |
| 2014-12-04 | 42,700 | µg/L | View Sample | |
| 2015-06-10 | 39,300 | µg/L | View Sample | |
| 2015-12-15 | 49,200 | µg/L | View Sample | |
| 2016-06-15 | 42,100 | µg/L | View Sample | |
| 2016-12-20 | 40,200 | µg/L | View Sample | |
| 2017-06-14 | 33,600 | µg/L | View Sample | |
| 2017-12-15 | 42,900 | µg/L | View Sample | |
| 2018-06-19 | 35,200 | µg/L | View Sample | |
| 2018-12-11 | 34,100 | µg/L | View Sample | |
| 2019-06-11 | 50,100 | µg/L | View Sample | |
| 2019-12-17 | 39,600 | µg/L | View Sample | |
| 2020-07-08 | 34,700 | µg/L | View Sample | |
| 2020-12-08 | 34,300 | µg/L | View Sample | |
| 2021-06-01 | 34,800 | µg/L | View Sample | |
| 2022-03-16 | 29,700 | µg/L | View Sample | |
| 2022-09-14 | 36,400 | µg/L | View Sample | |
| 2023-03-15 | 36,200 | µg/L | View Sample | |
| 2023-09-20 | 39,500 | µg/L | View Sample | |
| 2024-03-19 | 33,200 | µg/L | View Sample | |
| 2024-09-17 | 36,700 | µg/L | View Sample | |
| 2025-03-18 | 31,700 | µg/L | View Sample | |
| 2025-09-16 | 30,500 | µg/L | View Sample |