| Sample Date | Result Flag | Result Value | Unit | |
|---|---|---|---|---|
| 2013-06-06 | 36,400 | µg/L | View Sample | |
| 2013-12-12 | 39,800 | µg/L | View Sample | |
| 2014-06-04 | 41,000 | µg/L | View Sample | |
| 2014-12-04 | 41,800 | µg/L | View Sample | |
| 2015-06-10 | 38,800 | µg/L | View Sample | |
| 2015-12-15 | 47,000 | µg/L | View Sample | |
| 2016-06-15 | 42,300 | µg/L | View Sample | |
| 2016-12-20 | 36,800 | µg/L | View Sample | |
| 2017-06-14 | 45,300 | µg/L | View Sample | |
| 2017-12-15 | 40,100 | µg/L | View Sample | |
| 2018-06-19 | 46,500 | µg/L | View Sample | |
| 2018-12-11 | 42,400 | µg/L | View Sample | |
| 2019-06-11 | 47,500 | µg/L | View Sample | |
| 2019-12-17 | 43,000 | µg/L | View Sample | |
| 2020-07-08 | 42,600 | µg/L | View Sample | |
| 2020-12-08 | 45,600 | µg/L | View Sample | |
| 2021-06-01 | 42,200 | µg/L | View Sample | |
| 2022-03-16 | 40,700 | µg/L | View Sample | |
| 2022-09-14 | 48,700 | µg/L | View Sample | |
| 2023-03-15 | 45,100 | µg/L | View Sample | |
| 2023-09-20 | 50,300 | µg/L | View Sample | |
| 2024-03-19 | 43,100 | µg/L | View Sample | |
| 2024-09-17 | 43,900 | µg/L | View Sample | |
| 2025-03-18 | 38,900 | µg/L | View Sample | |
| 2025-09-16 | 46,800 | µg/L | View Sample |