| 117894 | Facilities | 582683 | Application for Permit to use Earthen Pit | 200808 | 11/29/1979 | Download |
| 117894 | Facilities | 582685 | Letter Epa to COGCC | 53824 | 12/26/1980 | Download |
| 117894 | Facilities | 1152982 | Pit Inspection Form | 25968 | 7/1/1986 | Download |
| 117894 | Facilities | 582686 | Letter J.R.Drilling to Weld Cnty Health Dept. | 52744 | 4/30/1980 | Download |
| 117894 | Facilities | 582684 | Letter Griffin Petrol. to COGCC | 59983 | 9/17/1980 | Download |