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John M. Warren <br /> Page 4 of 6 <br /> April 11, 2022 <br /> of the affected land is dependent on the desired species ability to establish and survive. <br /> The limited amount of growth medium spread over the shale/sandstone parent material <br /> will not provide an adequate root depth for the desired species. Based on the soils <br /> information, the soil horizons (which include topsoil and overburden) extend to a depth <br /> of 48 to 60 inches. Please commit to retaining at least enough overburden material to <br /> replace 48 inches of material on top of the shale/sandstone parent material. Please update <br /> the reclamation plan, maps and reclamation cost estimate accordingly. <br /> 18. Page 14 of the reclamation plan states non-noxious weeds do not need to be controlled. <br /> Please revise this to indicate, that non-noxious weeds may be controlled if they impact <br /> the development of the desired reclamation species. <br /> 19. Page 15 of the reclamation plan explains how the pit floor configuration is expected to <br /> limit rapid erosion and how sediment control best management techniques will be <br /> installed in significant drainages within 50 feet of the edge of the affected land. Please <br /> explain further how the pit floor configurations will be managed to prevent rapid erosion <br /> and how water discharged from the affected land will comply with surface water quality <br /> standards? It appears the operator will need to obtain a CDPS discharge permit since <br /> water will discharge from the mine area into Lone Tree Creek. Please describe and show <br /> how the water will be managed to comply with the CDPS permit standards. If erosion <br /> and sediment control structures such as silt fence, berms, sediment ponds/basins, etc. will <br /> be used, please provide design plans for these features and show where these features will <br /> be used on the mining plan map. <br /> 20. Please provide a plan or schedule indicating how and when reclamation will be <br /> implemented in accordance with Rule 6.4.5(2)(e). <br /> 21. Please state that all inactive stockpiles will be seeded within 180 days. <br /> 22. The reclamation plan indicates mulching and fertilizer is not being proposed but then <br /> goes on to indicate that mulch and fertilizer may be used. Please clarify this discrepancy <br /> and provide a clear plan for when mulch and fertilizer will be used. Otherwise, please <br /> commit to mulching and fertilizing the affected area and revise the reclamation plan and <br /> cost estimate accordingly. Please specify the fertilizer type, mixture, quantities and times <br /> of application. <br /> 23. Please revise the reclamation plan to explain the expected time(s) of seeding and planting <br /> per Rule 6.4.5(2)(f)(ii). <br /> 24. Please indicate which roads will be left as necessary for post reclamation access. <br /> 6.4.7 EXHIBIT G—Water Information <br />