| Date | Description |
|---|
| 2024-04-03 |
delete person Stacey Loftin |
| 2024-04-03 |
delete person Todd Coleman |
| 2021-02-03 |
insert person Greg Synychak |
| 2021-02-03 |
update person_title Brian Logue: General Superintendent => Superintendent |
| 2021-02-03 |
update person_title Greg Graham: General Superintendent => Superintendent |
| 2021-02-03 |
update person_title Stacey Loftin: Mining Superintendent => Superintendent |
| 2020-03-05 |
delete person Buddy Collins |
| 2014-05-10 |
update person_title Derrick Thigpen: Survey Manager => Construction Survey - GPS Model Manager |