2005-07-12_REVISION - M2000016 (3)

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~FARGE NORTH AMERICA AGGREGATES, CONCRETE & ASPHALT indicates that the well was drilled to a depth of 31.5 feet, and that the depth to the static water table is about 6 feet. Therefore 3 feet of drawdown does not significantly impair the ability of the well to produce water. Though the report does not indicate the depth to the pump intake, if it becomes necessary, Lafarge will work with the well owner to lower the pump at Lafazge's expense. Groundwater Monitoring Plan: 2. Memo Item l6: The applicant must provide the list or table requested in the previous adequacy review showing well permit numbers and constructed depths for all the monitoring wells. The Phase 1 and Phase 4 monitor well applications have been submitted to the SEO office, copies of the applications are enclosed. The table below summarizes the Riverbend monitor well permit numbers and constructed depths: Monitor Well SEO Permit Number Constructed De th N003-MWO1 250156 36 N003-MW02 250144 37 N003-MW03 250143 37.5 CH03-MW01 250146 30 CH03-MW02 250145 22 CH03-MW03 250147 23.5 CH03-MW04 250148 27 MF03-MWO1 250138 34 MF03-MW02 250139 23 MY03-MWO1 250142 54 DS03-MWO1 250149 33 DS03-MW02 250150 15 DS03-MW03 250151 19 DS03-MW04 250152 46 DS03-MW06 250153 24 DS03-MW07 250154 20 DS03-MW08 250155 33 DS03-MW09 250137 24.5 3. Memo Item 27: Please state where in the application the applicant has listed the specific BMPs to be implemented and "the maximum number of controls "for the Division to use in bond calculations. Please also indicate where (including sizes of structures) each will be used so the Division can calculate the applicable bond amount for removal and/or reclamation of such structures. LAFARGE NORTH AMERICA INC. -Lafarge ConstruIXion Materials 10170 Church Ranch Way, Suite 200, Westminster, Colorado 80021 Telephone: (303) 657000 Facsimile: (303) 657-4037