2008-08-22_PERMIT FILE - M2007087

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2. Appendix II - State DRMS Permit File No. M-2007-0087 Items as follows: 7/11/08 Approval Letter, reduced Exhibit C - Pre-Mining Map, original reduced Exhibit C-1 - Mining Plan Map, original reduced Exhibit D - Mining Plan, original Exhibit E - Reclamation Plan, original reduced Exhibit F - Reclamation Plan Map, Exhibit G-Water Information, Geotechnical Stability Exhibit, 4 Damage Reimbursement Agreements, Inert Fill Certification by AFS, and Figure AD-1 Well-Map. Other items: 1. Mining Setbacks - No mining shall be allowed closer than 25' to mining area boundaries. Along the north and west boundaries of the site abutting the City of Thornton's reservoir and slurry wall, this provides a minimum distance to the slurry wall of 90'. The mining setback is based on the Geotechnical Exhibit report that is included in the Appendix to this Explanation. The City of Thornton initially objected and wanted a 200' setback from the slurry wall, but withdrew their objection before the DRMS issued their Permit. 2. Damage Reimbursement Agreements property owners and owners of stri the City of Thornton, were Reimbursement Agreements. Except Thornton, the four others accepted which are copied in the Appendix. - All 5 adjacent ictures, including offered Damage for the City of these Agreements, 3. Well Setbacks - As a condition of approval of the DRMS Permit, no mining will occur within 200' of off-site monitoring wells of the City of Thornton without agreement of the City or an engineering evaluation is approved by DRMS demonstrating that no adverse affect on likely to occur on these wells from the affects of mining and backfilling. 4. Ground Water Monitoring - A second condition of approval of the DRMS Permit is to develop a upgadient and downgradient ground monitoring program for a period of two years following completion to ensure that ground water is not mounding to levels that would adversely impact surrounding structures.