| 109720 | Facilities | 664377 | Pit Inspection Form | 31920 | 6/25/1986 | Download |
| 109720 | Facilities | 664374 | Application for Permit to use Earthen Pit | 134543 | 6/2/1984 | Download |
| 109720 | Facilities | 664378 | Letter COGCC to R.Higgins | 17790 | 6/27/1986 | Download |
| 109720 | Facilities | 664381 | Pit Inspection Form | 37552 | 6/25/1986 | Download |
| 109720 | Facilities | 664376 | Letter: Follow up to Inspection | 20878 | 6/14/1984 | Download |
| 109720 | Facilities | 664379 | Application for Permit to use Earthen Pit | 67031 | 2/2/1981 | Download |