2010-03-01_REPORT - M2007005 (3)

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Grand junction C O L O R A D O PUBLIC WORKS & PLANNING February 18, 2010 Annual Report for the Riverside Parkway 111 Permit Number M- 2007 -005 The following report outlines the site operations conducted at this borrow site location during 2009. Mining Operations: No mining operations occurred during 2009. Mining of the borrow source was conducted from January to June of 2007. This included excavation, loading, and hauling of on site materials. The borrow materials were placed in the bridge abutment fills located at the 5 1 Street and the Riverside Parkway. Minor mining operations were completed from June until September 2007. All mining operations have been completed at the site. Reclamation Operations: Grading of the site to its final contours was completed in 2008. Additionally, 3,079 cubic yards of class A organic compost material was hauled to the site during 2008. During the summer of 2009 additional compost was brought to the site, bringing the total to 6,000 cubic yards. The major phase of the reclamation activity was completed during November of 2009 (refer to the attached map). The compost was evenly spread across the site to a depth of 2 to 2 %z inches. Then the compost was incorporated into the top 4 inches of existing soil by means of tilling and disking, creating an even and loose seedbed. Fertilizer with an 18 -46 -0 composition was applied at a rate of 250 pounds per acre, and additional humate was applied at a rate of 800 pounds per acre. Both materials were applied to the entire site. Native seeding was then planted by means of a seed drill, at the rate of 25'/: pounds of live seed per acre. Following this, weed free straw was blown and crimped into place at a rate of 2 tons per acre and additionally secured by the application of a mulch tackifier at the rate of 200 pounds per acre. If the native seeding successfully establishes during 2010, the site will have achieved final stabilization and the City will request reclamation responsibility release at that time. Storm water management operations: The current storm water management measures are being maintained at the site. They will be maintained as needed to comply with the storm water management permit requirements. If you have any questions or concerns, please feel free to contact me at (970) 244 -1542, or pauli @gicity.org Sincerely, Z: � �e-' � e C�) �- D. Paul Jagim, PE Project Engineer 2.50 NORTH 5TH STREET, GRAND JUNCTION, CO 81501 P [970] 244 1554 F [9701 256 4011 www.gjcity.org