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16.2 All water services shall be one (1.0) inch or (1.5) inch Copper, as noted on the <br /> Construction Plans and shall be located in the field by the ENGINEER. The water services shall <br /> be extended to ten (10) feet past the property line as shown on the STANDARD DETAILS. <br /> 16.3 All watermain fittings, valves, and hydrants shall be furnished with mechanical joints and <br /> megalug connectors meeting the latest A.W.W.A. Specifications. <br /> 16.4 The CONTRACTOR shall be required to perform a hydrostatic pressure test and <br /> connectivity test in accordance with the Standard Watermain Specification's on all watermain <br /> constructed on this project. <br /> 16.5 Curb stop boxes shall have a one and a quarter inch upper section. <br /> 16.6 All hydrants are to be installed with eight foot bury length from the finished ground line at <br /> the hydrant to the bottom of the branch pipe connection. <br /> 16.7 Stainless Steel Bolts only. No other type bolts will be allowed. <br /> 16.8 Resilient seat wedge valves shall be used on all sizes of watermain. <br /> 17. STORM SEWER <br /> 17.1 All storm sewer shall be constructed in accordance with the City of Orono Standard <br /> Details. <br /> 17.2 All Storm Sewer shall be reinforced concrete pipe (RCP) Class 5 or better unless <br /> another class is noted on the PLANS. Joints shall be type R-4. <br /> 17.3 Temporary drainage culverts shall be Corrugated Metal Pipe or HDPE Pipe meeting <br /> MnDOT Specifications. The Utility Contractor shall be responsible for the Removal of any <br /> Temporary Drainage Pipes, Ways, or Swales, when Utilities are installed in that area of the Site, <br /> no direct compensation will be made for this WORK. <br /> 17.4 Storm Sewer materials and construction shall be in conformance with the latest MnDOT <br /> Standard Specifications for Construction. <br /> 17.5 The CONTRACTOR shall install wimcos, circle "h" inlet protection, Haybales, or other <br /> approved BMP devices at all storm sewer inlets to prevent eroding soils from entering the storm <br /> sewer system. Haybales shall be maintained until the turf has been established. <br /> 18 UTILITY TRENCH COMPACTION <br /> 18.1 Fill placed below three feet of subgrade elevation should be compacted to a minimum of <br /> 95 percent of standard Proctor density (ASTM D 698). This fill should not be more than 3 <br /> percentage points over the soil's optimum moisture content as determined by the standard <br /> Proctor. Fill placed within the upper three feet of subgrade and the aggregate base and within <br /> the entire utility trench adjacent to building pad areas should be compacted to a minimum of 100 <br /> percent of the standard Proctor density. This fill should not be more than 1 percentage point <br /> over the soil's optimum moisture content as determined by standard Proctor. <br /> 18.2 If the existing moisture content of the backfill material below three feet of subgrade is <br /> greater than 3 percentage points above the optimum moisture content, the soil shall be <br /> compacted to a minimum density of 3 pounds per cubic feet less than the standard Proctor <br /> curve at that moisture content. At no time shall the density be less than 90 percent of the <br /> standard Proctor density. This modification of the compaction specification shall at no time be <br /> used or applied to the upper 3 feet of the subgrade or the aggregate base. <br /> SP-7 <br />