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Wattenberg Lakes Amendment, Exhibit E—Reclamation Plan May 2023 <br /> b. Build up south edge of existing Pond 1 on south side to create 40-ft buffer from top of pond slope <br /> to county road <br /> c. Mine areas 1 and 2 <br /> d. Place fill in other parts of the site to achieve reclamation grades <br /> 2. Phase 2—Construct slurry wall and perimeter drain (2 months) <br /> 3. Phase 3—General earthwork on western side of footprint (excess fill to be used for backfill as needed in <br /> other parts of the site) (6 months) <br /> Each area will be reclaimed using soil, overburden, process fines, and other inert materials from on-site. <br /> However, if materials from off-site are used, the applicant will provide the Division with the appropriate notices <br /> and affidavit in accordance with Rule 3.1.5(9). There will not be known toxic or hazardous materials in the backfill <br /> material.Additionally, no acid-forming or toxic materials will be used during mining and it is unlikely they will be <br /> encountered in the mining, The mining will not leave high walls on the property. There will be no auger holes, <br /> adits, or shafts left on the property. <br /> Reclamation quantities and costs are summarized in Exhibit L. <br /> 3.0 POST-MINING LAND USE <br /> The post-mining land use, as proposed in this Reclamation Plan consists of water storage ponds surrounded by <br /> wetland and upland vegetation. In this area of Weld County, mining and developed water storage are <br /> predominant land uses along the South Platte River. Therefore, the proposed post-mining land use is compatible <br /> with surrounding land uses. The area within the proposed permit boundary will consist of two reservoirs, reservoir <br /> shorelines, backfilled wetland/riparian mitigation areas, permanent access and county roads, and other reclaimed <br /> or otherwise undisturbed land. The following areas will comprise the final land use: <br /> Reclamation and Post-Mining Land Use Areas Area <br /> acres <br /> Reservoirs—Ponds 1 and 3 176.3 <br /> Wetland mitigation total area 36.7 <br /> Cottonwood replacement total area 10.0 <br /> Access roads reclaimed 1.1 <br /> Misc. upland disturbed areas reclaimed 10.0 <br /> Areas that are undisturbed, previously disturbed and 186.7 <br /> reclaimed, or access and county roads (permanent) <br /> TOTAL 420.8 <br /> Some roads inside the proposed permit boundary will not be reclaimed but will remain for accessing and <br /> maintaining the reservoirs, wetland mitigation areas, and oil wells. The existing vehicle access road over the <br /> southern end of the Huett Seep/Ditch will remain. Unimproved roads around all reservoirs will also remain <br /> Conveyor systems and bridges will be removed under reclamation planned for Tucson South and are not covered <br /> under the Wattenberg reclamation activities. Roads within the Wattenberg permit area that are not necessary for <br /> future access and other disturbed areas in the permit area will be reclaimed with vegetative cover to stabilize the <br /> soil and minimize erosion. <br /> 4.0 RECLAMATION MEASURES - MATERIAL HANDLING <br /> Site reclamation measures are illustrated in Exhibit F. Reclamation of the site will include development of two <br /> water storage reservoirs (total of 176.3 acres), wetland and cottonwood vegetation (total of 46.7 acres), and <br /> upland vegetation will be established on access roads to be reclaimed and miscellaneous disturbed areas (total of <br /> 11.1 acres).Areas not mined nor disturbed by other site operations (outside of the 2004 permit and planned <br /> activities)will not be subject to reclamation under this plan; these areas cover a total of 186.7 acres. <br /> OTETRA TECH Page 216 <br />