2018-06-26_PERMIT FILE - M1977141

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4. Aggregate will prepare and submit an Inert Fill Notice and the Inert Materials Profile and Affidavit provided by Boulder County to DRMS as required under Aggregate's Permit. 5. Boulder County will be responsible for any other required permits associated with the imported fill and fill placement. 6. Aggregate will provide to Boulder County design specifications,grading plan and earthwork specifications associated with the EWP fill and placement area set forth in Figure 1. 7. Boulder County will be responsible for and pay the costs of all labor,equipment and materials required to place the imported materials in an engineered,quality controlled,and stable embankment fill as set forth below: a. Fill materials,placement methods,and placement geometry must not impact the fill placement,stability,or performance of the Permit approved reclamation plan slopes. b. Fill Placement. The final in place fill shall meet the reclamation plan specifications regarding material type,gradation,moisture content,compaction,horizontal lift placement,and maximum lift thickness as follows: i. Material Type—ASTM Classifications of SW,SP,SC,SM,SC-SM,GW, GP,GC,GM,and GC-GM. ii. Gradation—Graded uniformly and continuously from boulder size to silt size, maximum particle size equal to two-thirds of the lift thickness, maximum 45 percent fines in the minus 3-inch fraction. iii. Moisture Content—Within 3 percent of optimum based on ASTM D698. iv. Minimum Compaction—Greater than 90 percent of the maximum dry density based on ASTM D698. v. Fill should be placed in horizontal lifts not to exceed 2 feet thick. Compaction requirements depend on the lift thickness and the compaction equipment used for compaction.Adequate compaction should be achievable by tracking with a dozer or the routing of construction equipment traffic, provided material characteristics,moisture content and lift thickness are appropriate. c. Boulder County will perform and document Quality Assurance/Quality Control (QA/QC)associated with its placement of the fill adjacent to existing pit walls and fills slopes,and provide copies of such documentation to Aggregate. d. Fill Slope Geometry. The final in place fill slopes,bench heights,and overall heights should be limited as follows: i. Bench Slope Angle 26.6 degrees or 2H:1 V ii. Maximum Bench Height 50 feet iii. Minimum Bench Width 15 feet iv. Maximum Overall Slope Height 150 feet 8. Boulder County shall require all of its employees,agents,contractors and subcontractors to provide all necessary and proper safety supervision of individuals who enter the Premises and act upon Boulder County's behalf,and Aggregate shall not be responsible for the safety of any such individuals. 9. City and its employees,agents,contractors and subcontractors shall comply with all necessary MSHA and/or OSHA safety training and documentary requirements as determined by Aggregate, including,but not limited to: a. Training i.e.task specific,CPR/First Aid b. Lone Workers