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~' ~ ~ • <br />• Revised March, 1992 <br />The purpose of the inspections is two fold. First, to <br />document and certify that the construction plan is being <br />followed. Secondly, during the above phases of the <br />construction, a key emphasis of all inspections will be <br />to implement routine contingencies as situations warrant. <br />For example, perhaps a section of underdrain should be <br />reworked, or the spoil dump raised to provide optimum <br />gravity spoil sorting. Inspections and implementation of <br />contingencies during these critical phases of Fill <br />construction will be a routine but very important <br />component of fill inspections. <br />The certified reports will be available for inspection by <br />the Division and, consistent with other monitoring <br />reports at Colowyo, copies will be submitted to the <br />Division in the Annual Reclamation Reports. The reports <br />will include a description of any appearances of <br />instability, structural weakness and other hazardous <br />conditions observed during the inspection. <br />4. Certified reports addressing the underdrain system will <br />include color photographs taken during and after <br />construction, but before the underdrain is covered with <br />• spoil. <br />After construction, the Section 16 Pit Fill will be monitored <br />quarterly for the following items and reports will be submitted in <br />the Annual Reclamation Reports. <br />1. The groundwater piezometer well will be established to <br />the base of the fill and will be monitored quarterly for <br />water level and the other parameters consistent with the <br />present Colowyo groundwater monitor plan. For a proposed <br />location of the well see the attached map. <br />2. on a quarterly basis the survey monuments on the face of <br />the fill will be monitored for horizontal and vertical <br />movement. For the proposed location of the monuments, <br />see the attached map. <br />3. On a quarterly basis a certified report by a registered <br />engineer will be completed taking into consideration any <br />changes in the results of items 1 and 2 above and will <br />note any evidence of surficial slope failure or the <br />formation of springs or seeps on the face of the fill. <br />r1 <br />L J <br />II a-4 <br />