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Scope of Work <br />5 MN Borehole to 6 MN Pond <br />Buried Dewatering Line <br />07/28/15 <br />3. Award contract <br />Early June 2015 <br />4. Start construction of HDPE line, pending permit approval Mid -Late June 2015 <br />5. Complete burial of HDPE line to the specified location <br />08/28/2015 <br />TC reserves the right for inspection of all work according to the following specifications and scope of <br />work provided within this document. All scope of work questions shall be directed to Jon Bobbera at <br />the contact information provided above. <br />A detailed construction schedule shall be submitted with the contractor's proposal that accurately <br />defines the contractor's plan of construction and the required timing to complete the project. The <br />contractor shall identify any potential problems that may interfere with the contractor's ability to <br />mobilize immediately after receiving the notice from Twentymile that the site is ready for <br />mobilization. <br />Detailed Scope of Work <br />The scope of work to be completed by the contractor includes: <br />Construction of Buried HDPE Line and Components <br />As indicated in the attached Figure 1, the approximate buried pipe line assembly length is 4,720 feet. <br />TC will supply all HDPE pipe materials, including 4,720 of 10" HDPE pipe, one 10" check valve, four <br />10" gate valves, two 10" "T"s, one end cap, and one pressure gauge. <br />The contractor shall be responsible for providing an HDPE fusing machine and fusing the 10" line <br />lengths. The 10" HDPE pipe lengths shall be delivered to TC in 40' lengths, therefore resulting in <br />approximately 50 fused joints for the entire pipeline. <br />The excavated burial ditch shall be a minimum of 5' deep to get below frost depth. Ditch walls shall <br />be tapered, benched or supported by a barrier as needed to prevent ditch walls from caving in on <br />persons while in the ditch. <br />Prior to excavation of any segment of the ditch, topsoil shall be stored to one side of the excavation. <br />Materials from the remainder of the excavation shall be placed on the opposite side of the ditch to <br />prevent contamination of the topsoil. After placement of the fused HDPE pipe, back filling, and <br />grading of the top of the ditch, the topsoil shall be evenly replaced over the excavation. <br />Page 3 <br />