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PART 2 - MATERIALS AND INSTALLATION <br />2.1 GENERAL <br />A. Polyacrylamide: As required in Paragraph 1.3.C, place polyacrylamide (PAM) on <br />bare ground to reduce the potential for erosion. PAM may also be used in water <br />bodies to remove turbidity. Use the anionic form of polyacrylamide that does not <br />stick to fish gills. For PAM information and its proper application, contact Applied <br />Polymer Systems, Inc., (678) 494-5998, www.siltstop.com. <br />B. Staked Silt Fences: <br />1. General: Use silt fences to control runoff from the construction site where the <br />soil has been disturbed. <br />2. Installation: Install per the manufacture's recommendations and as specified <br />herein. In general, install the silt fence in a manner that allows it to stop the <br />water long enough for the sediment to settle while the water passes through <br />the silt fence fabric. All supporting posts shall be on the down-slope side of <br />the fencing. Place the bottom of the fabric 6 -inches minimum, under <br />compacted soil to prevent the flow of sediment underneath the fence. Place <br />silt fences away from the toe of slopes. Otherwise, install in accordance with <br />FDOT. <br />3. Product: All material shall be new and unused. Use FDOT Types II through <br />IV silt fences where Targe sediment Toads are anticipated, where slopes are <br />1:2 (vertical: horizontal) or steeper, or as directed by the ENGINEER; <br />otherwise use FDOT Type III silt fence. <br />(a) For FDOT Type III Silt Fence - ACF Environmental, Catalog No. <br />360800000, Florida DOT Silt Fence. U.S. Sieve = 30, tensile strength = <br />120 pounds. The heavy-duty filter fabric shall be pre -attached to 48 -inch <br />long stakes on 6 -foot centers. (1-800-448-3636). <br />/I_\ 1""'__rl"1/1T T...__ I11 :i f"'_.___ J:r..11__ L-.._ /"+_1_I__, AI_ �1Ol1 11 /l !1 !1 !1/'11_ <br />(0) For FDOT Type Iv Jul Fence, uiouiiy the cluove Catalog i' u. 360800000 to <br />comply with FDOT 2010 Design Standard Index No. 102. <br />(c) Or equivalent. <br />C. Turbidity Barriers: <br />1. General: Use turbidity barriers to control sediment contamination of <br />rivers, lakes, ponds, canals, etc. <br />2. Installation: Install per the manufacturer's recommendations and per FDOT <br />2010 Design Standard Index No. 103 unless directed otherwise by the <br />ENGINEER. <br />3. Product: All material shall be new and unused. The turbidity barrier shall be <br />a pervious barrier and the fabric color shall be yellow. <br />a. Parker Systems, Inc.(1-866-472-7537),model Type II or Type I <br />b. Or equivalent. <br />D. Sedimentation Control From Dewatering or Pumping Operations Using Filter Bags: <br />1. Remove silt, sediment, and other particles from dewatering or pumping <br />applications using a filter bag. The bag shall be manufactured using a <br />polypropylene non -woven geotextile and sewn by a double -needle machine, <br />using a high strength nylon thread. The bag shall have a fill spout Targe <br />enough to accommodate a 4 -inch pump discharge hose. Straps shall be <br />01025-8 Technical Specifications <br />F:\Public Works\ENGINEERING DIVISION PROJECTS\1506-Gifford Neighborhood 45th St Beautification\Admin\bid <br />documents\Master Contract Documents\Technical Specifications.doc <br />