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L <br />2.5 Water Meter Manhole <br />Water meter manhole shall be standard <br />precast manhole ASTM <br />C478 or ASTM C76, Class 1 or 2, and Mn//DOT Standard Plateing No.t400 K. <br />Provide two layers of 2-inch thick styrofoam insulation as indicated on the <br />drawings. <br />2.6 Valves <br />Valves shall be 125 lb., rising stem, inside screw, bronze gate valves, as <br />manufactured by Kennedy. <br />2.7 Reduced Pressure Zone Backflow Preventer <br />Reduced pressure zone backflow <br />manufactured by Febco, Johns-Menville reven ter shall be Model 835B, as <br />2.8 Filter Fabric <br />Filter fabric shall be non -woven plastic fiber fabric of polypropolenes <br />Mirafi 1409 Bidem, or Typer, conforming <br />1 3733, Type <br />to Mn/DOT Specificatione <br />2.9 Subdrain Pipe <br />Subdrain pipe shall be perforated thermoplastic pipe (TP) conforming to <br />Mn/DOT Specification 3245. <br />2.10 Coarse Filter Aggregate <br />Coarse filter aggregate shall conform to Mn/DOT Specification 3149.2H. <br />2.11 Pipe Bedding Material <br />Water pipe bedding material shall be Aggregate Bedding material conformin <br />to Mn/DOT specification 3149.2G. g <br />PART 3. EXECUTION <br />3.1 Protection of Existing Utilities <br />The contractor shall protect from damage all existing watermain and <br />watermain valve boxes, underground and overhead telephone lines <br />underground and overhead electric wires and cables, and underground gas <br />lines ' <br />provide 24 hours notice to utility companies who will locate all <br />existing utilities prior to start of construction. <br />3.2 Watermain Cover <br />Depth of cover on all watermain and services shall be a minimum of 7.5 <br />feet. <br />11 <br />