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Basin will not use any pesticides or herbicides without approval from the Division. • Prior to seeding and after topsoiling, Basin will conduct a soil testing plan evaluating the major soil nutrients of nitrogen, potassium, and phosphorus. Results will be forwazded to the Division. Fertilization application will be based on this testing program. All acid forming and/or toxic materials shall be disposed of in accordance with Section 4.11.4 and Section 4.14.3. Roads approved to support post-mining land use aze shown on Maps 15 and 16 Surface Disturbance and Post Mining Land Use East and West Portal respectively. All roads not approved to support post mining land use including light use, access and haul roads will be reclaimed. Reclamation of these roads will proceed when access is no longer needed for maintenance of reclaimed azeas. Road base will be removed and placed over refuse. The roads will be ripped to a depth of 18 inches and scarified prior to final seedbed preparation. Fill and cut slopes will be graded to blend with the post-mining topography. Water bazs will be installed as necessary to pxevent excessive erosion. On August 15, 1985 WFC submitted a rill and gully plan to the Division. This plan was revised in December 1986. Exhibit 29, Rill and Gully Plan, is a copy of this plan. Basin will follow the rill and gully maintenance requirements as outlined in this plan. As previously discussed, revegetation success criteria will be judged according to Sections 4.15.8 and 4.15.10 of the regulations. Basin's postmining land uses will include rangeland, upland and riparian wildlife habitats. Success of the rangeland in the East Portal azea will • be compazed to the Golden Eagle Grassland Reference Area. Success of upland wildlife habitat will be compazed to the upland reference area. Success of the riparian wildlife habitat will be compared to the riparian reference azea. The locations of these reference azeas aze shown on Map 10, Vegetation. Map 15, Surface Disturbance and Postmining Land Uses East Portal and Map 16, SL-02 2.05-50 (Revised 8/7/06)