2011-01-14_GENERAL DOCUMENTS - M1983064

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•,,J Colorado Inactive Mine Reclamation Program CLOSEOUT REPORT TOMICHI PIT BOND FORFEITURE PROJECT Introduction: The Tomichi Pit project was developed to complete the reclamation requirements that were not completed by the operator under their reclamation permit. The project was completed by filling the abandoned gravel pit with the overburden material that was left on-site, after mining activities. The pit floor was raised approximately four feet, the four acres were graded to 3:1 or less, the soils were amended with fertilizer and compost, seeded with a wetland seed mix on the pond base and pasture mix on the surrounding areas, and mulched with hay from the adjacent pasture. Permit Information Permit Number Operator Name Mine Name M-83-064 Tomichi Equipment Company Tomichi Pit Type of Mine—Non-coal Commodity Mined: gravel PRE-RECLAMATION SITE CONDITIONS The Tomichi Pit site is located approximately one mile southwest of Gunnison Colorado. The pre-reclamation conditions at the site were characterized by an approximately two acre open water pit, significant noxious weed infestations, including spotted knapweed and Canada thistle, surrounding the pond, and approximately 3,000 cubic yards of overburden in large piles with steep slopes. The site is heavily grazed for cattle, which had destabilized the banks of the pond, and exacerbated the weed infestation. The Tomichi Equipment gravel pit is located on United Companies sand and gravel property. However, the revoked site is not within the boundary of United Company's operating permit. BIDDING/CONSTRUCTION INFORMATION DRMS received eleven bids for this project. The low bidder was Schmalz Construction with a bid of$29,195.00 Type of Bid Documented Quote (circle one) Bid as the Tomichi Pit Bond Forfeiture Project, PKA-11-1197 Contractor Name &Address Construction Bond Amount: $5,000 PO Number Schmalz Construction Dates Start: 10/20/2010 Severance Tax OE-PKA-11000000025 PO Box 1105 $24,195.00 Gunnison, CO 81230 End: 11/09/2010 PO Date Project Cost 9/01/2010 $29,195.00 Schmalz construction mobilized to the site on October 20, 2010. Initial site work included building access into the site, and pumping water into the adjacent field from the pit. The pump operated 24 hours a day for the first week of the project, which brought the water level down to a manageable level. All of the pumped water infiltrated into the adjacent pasture, and did not enter surface waters. Initial excavation of the overburden piles revealed that there was significantly less material than needed to bring the ground level of the two acre pond to above the high water mark (approximately four feet). Due to the lack of fill material, we determined that the most effective strategy would be to bring the base of the pond up to above the high water mark, for the largest possible area in the pond, and leave the remainder of the pond as open water. The southern portion of the pond was the deepest area, therefore, a small open water area was left on the south side of the pond, and the banks were graded to less than 3H:1V slope. The remainder of the pond was filled in with at least four feet of fill. All overburden fill material located on the site was used to fill the pond. The banks of the pond were extended to provide additional fill material, and the entire four acre site was graded to 3H:1V or less. Trash and debris located on the property were burned on-site in three separate piles. Non-combustible materials were hauled to the Gunnison County landfill. Based on the location of the site, within a grazed pasture, we determined that a pasture grass seed mix would be appropriate for use on the site. The bottom of the pit was seeded with a wetland mix, due to the anticipation of a high water table during the spring and summer months. Schmalz Construction hauled 280 cubic yards of Gunnison wastewater treatment plant compost to the site and spread it approximately one inch thick across the four acre site. Fertilizer was also applied to the site at a rate of 200lbs per acre. Both the fertilizer and the compost were ripped into the soil to a depth of three inches. The fertilizer was a 1:1 Phosphorous and Potassium mixture. The Nitrogen (N)was removed from the mix due to the use of hay mulch rather than straw mulch. Hay mulch has four times more N than straw mulch, therefore, N was not needed in the fertilizer mix. The hay used for the final revegetation was produced from the adjacent pasture. The straw was applied at a rate of two tons per acre, and crimped into the site, and the site was fenced with a four-strand barbed wire fence, for cattle exclusion. The project was completed on November 9, 2010. Remaining Reclamation Requirements and Estimated Cost NONE As of 05/14/09