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• during operation, restrict activities to the areas identified and surveyed for surface disturbance; <br />• after operation, remove or make innocuous all surface facilities; <br />• reshape disturbed areas to near original contours and re- establish drainages; <br />• apply salvaged and stockpiled topsoil generally back to areas by soil mapping unit; <br />• test topsoiled areas, amend if needed, and seed with approved seed mixture; and <br />• monitor reclaimed areas and actively encourage revegetation to achieve bond release. <br />E -2 SURFACE DISTURBANCE AND DEVELOPMENT SEQUENCE <br />Specific activities will be preferentially performed during initial land disturbance. Where needed on <br />slopes and /or on erosive soils, perimeter erosion and sediment controls will be constructed before <br />other surface disturbance activities. Next, roads will be constructed with appropriate erosion and <br />sediment controls incorporated during construction. Simultaneously with road construction and as <br />needed for the construction of erosion control and sediment control structures, soil will be salvaged. <br />After these measures have been implemented, the components associated with the well field and <br />the processing facilities will be constructed. <br />Placement of erosion and sedimentation control structures will parallel the development of the well <br />field and process facilities. Topsoil stockpiles and accessible cut and fill slopes of evaporation <br />ponds, roadways, and other facilities will be seeded at the first available planting time (i.e., fall or <br />spring) after construction. These components will be re- vegetated to enhance viability of stockpiled <br />topsoil and to minimize potential erosion problems with both stockpiles and facility cut and fill <br />slopes. The seed mix shown in Table E -1 will be used. <br />E -3 EROSION AND SEDIMENT CONTROLS <br />G 1LMVN78545.0021Reclamation' Redamexh. DOC <br />• • <br />During initial site development, the perimeter of each area to be disturbed will be delineated and <br />visibly marked. Where needed on slopes and /or on erosive soils, structures such as dikes and <br />ditches will be placed to divert surface runoff around the disturbed area where it is feasible. When <br />diversion is not feasible, adequate structures such as pipes and ditches will be provided to route <br />runoff safely through the area to be disturbed. <br />Ephemeral channels may be diverted if it is anticipated that they will receive runoff that could <br />interfere with or jeopardize development or operational activities. Diversion of ephemeral flows will <br />take into consideration the size of the contributing watershed and the design storm events for the <br />area. Erosion and sediment control structures such as silt fencing, straw bales, water bars, and/or <br />E -2 <br />