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EXHIBIT L WORST CASE RECLAMATION SCENARIO <br /> The worst-case reclamation scenario at the Robinsons Sons Gravel Pit No. 1 will be when the <br /> largest area of disturbance needs to be topsoiled and revegetated. This is anticipated to be at the <br /> end of mining and to be an area no greater than 25 acres. Mining operations will move through <br /> the site, staying in the active area. A truck scale and office trailer will be located near the <br /> entrance and will need to be removed. A detailed breakdown of reclamation tasks can be seen <br /> below. <br /> 1. Reclamation Tasks and Costs <br /> The following reclamation tasks will be required. <br /> • Remove truck scale = $3,000 <br /> • Active highwall area backfilling= 1000 ft of vertical to 3H:1 V slope that is 12 feet tall <br /> (cross section area of 432 sq. ft.) at 27 CF/CY = 16,000 CY at$1.50/CY= $24,000. <br /> • Topsoiling of 25 acres of disturbance at the end of mining. 25 acres at 8 inches deep <br /> (30,250 CY) at$1.50/CY= $45,375. <br /> • Pastureland seeding and mulching of the disturbed areas. 25 acres at $850/acre = <br /> $21,250. <br /> Robinson Gravel No 1 <br /> September 2018 L-1 <br />