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10/5/17 <br /> Mr. Montgomery, USACE <br /> Page 7 of 12 <br /> located at the toe of the access road and might be that band. There's no certainty that the <br /> absence of emergent plants in that band are either the result of seasonal dewatering or <br /> perhaps never survived. But survival of the diverse species is a large part of Concern A, <br /> listed on Figure 1. Is intermittent saturation by the groundwater recharge effort <br /> sufficient to sustain the planted emergent species in that zone, or should it be a <br /> continuous supply? <br /> Concern B—Water Suaaly to the South Pond Durina Minina of Lake 5 and After Closure <br /> The May 2010 revision of the Reclamation Plan shows that the post-reclamation <br /> water surface elevation of Lake 5 will be 8530. The water surface elevation of the South <br /> Pond measured in 2004 was 8529.8, or only 2 '/2 inches lower than the elevation of Lake 5. <br /> Concern B (Figure 1) relates to questions about the groundwater gradient from Lake 5 to the <br /> South Pond The marsh area of the South Pond was at elevation 8531-8532 in 2004, or as <br /> much as two feet higher than the proposed final elevation of the South Pond. Is a gradient of <br /> only 0.2 feet between Lake 5 and the South Pond sufficient to sustain that portion of <br /> the historic groundwater supply to the South Pond?, and Will the groundwater <br /> preference be to flow north from Lake 4 to Lake 5 instead of across the highway to the <br /> marsh of the South Pond?, and (2) Will the wetland plants between the South Pond <br /> and the highway dry-up? <br /> The attached Final Planting and Seeding map, Sheet B is presumably an As-Built of <br /> the Love Pit Wetland re-vegetation effort. It shows both emergent planting and wet meadow <br /> seeding in the zone between the highway and the South Pond. The current and future <br /> hydrology across that corridor should be verified before mining of Lake 5 commences and the <br /> plan modified, if needed, to guarantee the groundwater supply to the emergent and wet <br /> meadow plants. <br /> Specific Request for Assistance from the Corps <br /> These descriptions provide the basis and depth of the concern about the groundwater <br /> supply to the Love Pit wetlands. On behalf of the Owners, the actions listed below are <br /> requested from the Corps. The permit has apparently been closed for the Love Pit wetlands <br />