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~~ III IIIIIIIIIIIII III 999 EUGENE M. SHEARER,P.E. CONSULTING GEOLOGIST 5720 South Jasmine Street Englewood,CO 80111-1525 ~~~'iO (303)771-2371 ~~G`~\ 1199 12January95 ~P\v~ Geo~o9y t~ Sun CoalnCompanyher ~o\~\~e~A~s 10200 West 44th Avenue, Suite 120 ,~,~~5~~ Wheat Ridge, Colorado 80033 RE: Meadows No.l Mine (C-81-029) Winter Quarter. 1994. Northwest Sediment Trao Inspection Dear Bryan: When Mr. Randy Booco, on-site maintenance supervisor for the Meadows No.l Mine, inspected the four sedimentation ponds on 29December94 one of the features I requested that he observe at each pond site was the input pipes or ditches. As you know, the input structure for the Explosive Storage Area Sedimentation Pond involves the dewatering device at the Northwest Sediment Trap and the ditch extending Prom that pipe to the pond. Mr. Booco climbed into the sediment trap in order to'inspect the dewatering pipe for any material that might impede water flow through the pipe. The following data set forth his observations at the trap area on 29December94: 1. Structural Weakness - None 2. Erosion and Vegetation - Snow cover obscures the land surface. 3. Hazardous or Potentially Hazardous Conditions - None 4. Sediment Level - The trap appears to have been almost dry when freezing temperatures halted the inflow of water from lateral collector ditches, for there is little or no ice in the trap bottom. Snow has drifted into the trap and is approximately three Feet deep along the north embankment area. Lesser snow depths are present on the eastern and southern trap bottom areas. Although snow obscures the trap bottom, the sediment level appears to be approximately the same as reported in the early fall of 1994. 5. Required Maintenance - None 6. Discharge Structure - No fluid movement through the dewatering device and the culvert is free and clear of any debris. 7. Input Structures - No fluid movement evident in any of the three structures and snow obscures detailed observa- tions.