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ADDENDUM #1 <br />PART 2 - MATERIALS AND INSTALLATION <br />2.1 GENERAL <br />A. Polyacrylamide: As required in Paragraph 1 3.C, place polyacrylamide (PAM) on bare <br />ground to reduce the potential for erosion. PAM may also be used in water bodies to <br />remove turbidity. Use the anionic form of polyacrylamide that does not stick to fish <br />gills. For PAM information and its proper application, contact Applied Polymer <br />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 the <br />silt fence fabric. All supporting posts shall be on the down-slope side of the <br />fencing. Place the bottom of the fabric 6 -inches minimum, under compacted <br />soil to prevent the flow of sediment underneath the fence Place silt fences <br />away from the toe of slopes. Otherwise, install in accordance with FDOT Index <br />No 102. <br />3 Product: All material shall be new and unused. Use FDOT Types II through IV <br />silt fences where large sediment loads are anticipated, where slopes are 1 2 <br />(vertical: horizontal) or steeper, or as directed by the ENGINEER; otherwise use <br />FDOT Type III silt fence. <br />(a) For FDOT Type III Silt Fence - ACF Environmental, Catalog No. 360800000, <br />Florida DOT Silt Fence. U.S. Sieve = 30, tensile strength = 120 pounds. The <br />heavy-duty filter fabric shall be pre -attached to 48 -inch long stakes on 6 -foot <br />centers. (1-800-448-3636) <br />(b) For FDOT Type IV Silt Fence, modify the above Catalog No. 360800000 to <br />comply with FDOT 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 />Index No. 103 unless directed otherwise by the ENGINEER <br />3. Product: All material shall be new and unused. The turbidity barrier shall be a <br />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 Dewaterinq 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 enough <br />01025-16 Technical Specifications <br />F \Public Works\ENGINEERING DIVISION PROJECTS \-1205-Vero Lake Estates Swk-87th St 101st Ave to CR510 <br />(LAP)\Admim'ADDENDUMS\ADDENDUM 1\Technical Specifications Addendum #1 doc <br />