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AR6 <br />As you are aware, DRMS will be required to bond to backfill any areas <br />of exposed groundwater until an appropriate permanent <br />augmentation plan is approved. For the proposed Satellite South Pit, <br />this will result in a substantial bond increase, and as such <br />DRMS will require significant additional supporting information for the <br />reclamation cost estimates provided in TR9. <br />a. Please provide as much supporting information as possible to <br />support the Unit Prices provided for the drill and blasting task as well <br />as the compaction testing task. <br />To support calculations for the reclamation bond reflecting the changes made to <br />Exhibit E and Exhibit L, HDR has provided the following: <br />1. Excel sheet summarizing the load, transport, fill, and compact calculations <br />2. Drill and blast cost estimate from contractor (PDF) <br />There is no backup for the compaction testing task. The folowing assumptions <br />were made to calculate this task: <br />a. Compaction testing will be done for each 30 inch lift (total of 48 lifts for 120 <br />foot pit depth). <br />b. It was assumed that compaction testing for each lift would be done by 1 <br />construction inspector in one day (assume $125/hr * 8 hours = 1000). Testing will <br />be done using a nuclear equipment (gauge) that will be rented for each daily <br />event (assumed $250/day). <br />c. The rate is a rate per day - using the assumptions above, this equates to $1250 <br />unit rate. <br />Exhibit L - Reclamation Estimate. P. <br />21. <br />1