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additional 10% of all rough grading hours for final grading. Again, based on negotiations with SCC several years ago, this was changed to a motor grader task. There is an alternative to this task and that is changing the spoil pile correction factor for all of the backfilling tasks that use a dozer (highwal] reduction, spoil pile grading and trailing spoil ridge grading). This would basically increase the hours (and, consequently, the cost) of those tasks by 5- 10%. As it stands, the Division will leave this task as is. 9. Drainage Control System Installation/Removal Work: Task 038 -Construct Final Drainage Channels -Based on the programmatic requirements of the CIRCES program and the cost estimating process, the costs that the Division uses must be both accurate and defensible. As such, the Division must use industry-recognized sources for all of its costs. For non-earthmoving related costs (demolition, drainage construction, etc.) the Division uses the RS Means guides (Site Work, Environrnental Remediation and Construction Cost Data). These are both reliable and industry standards, thus meeting the necessary criteria for cost sources. The costs given in task 038 for both riprap and geotextile include materials, equipment and labor. The costs aze from the 2005 edition of the RS Means Site Work and Landscape Cost Data. The line reference for the riprap is 02370 450 0200 and is for riprap, machine placed, 18 inches, not grouted. The line reference for the Geotextile is 02370 700 0060 and is for nylon, 3 dimensional geomatrix, 9 mil thick. The following chart shows the cost breakdown for both of these items form Means. Material E ui ment Labor Total Ri rap $15.55 $30.50 $11.65 $57.70 Geotextile $4.04 $0.92 $0.25 $5.21 The cost for geotextile from Means is more than that quoted by SCC, the cost for riprap from Means is less. While this may be interesting as to the differences, the issue here is that the Division must use the costs from Means. Independent contractor costs have been found to be unreliable and highly variable and, therefore, do not meet the criteria necessary for the Divisions estimating purposes. Additionally, without a signed affidavit from a supplier stating that they would, in the event ofpermit revocation and bond forfeiture, supply the product in question at the price quoted for the duration of the permit term, to the Division, the Division can not accept that cost. That said, the Division will leave task 038 as is. Task 039 -Backfill and Grade All Ditches -These are all temporazy ditches to sediment ponds and any diversion ditches on the site. These will be pulled after the Division finds that sediment control structures are no longer needed (after Phase II Bond Release). Task 046 -Backfill and Regrade 24 Stockponds -The Division agrees with SCC. The volumes will be changed from 112,500 CCY to 46,880 CCY. 11