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Division 2 - Technical Provisions, IRC -1639 <br />to Indian River County Stormwater Enforcement, SJRWMD, FDEP, Indian River Farms Water <br />Control District (or other F. S. Chapter 298 Drainage District, as appropriate), and other <br />pertinent regulatory or enforcement agencies. <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 ground <br />to reduce the potential for erosion and cover it with hay, jute, or mulch. PAM may also be <br />used in water bodies to remove turbidity. In all cases, use the anionic form of polyacrylamide <br />that does not stick to fish gills. For PAM information and its proper application, a contact is <br />Applied 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 soil <br />has been disturbed. <br />2. Installation: Install per the manufacture's recommendations and as specified herein. <br />In general, install the silt fence in a manner that allows it to stop the water long <br />enough for the sediment to settle while the water passes through the silt fence fabric. <br />All supporting posts shall be on the down-slope side of the fencing. Place the bottom <br />of the fabric 6 -inches minimum, under compacted soil to prevent the flow of <br />sediment underneath the fence. Place silt fences away from the toe of slopes. <br />Otherwise, work shall conform to Section 104 of the Florida Department of <br />Transportation Standard Specifications for Road and Bridge Construction. <br />3. Product: All material shall be new and unused. Use FDOT Types III through IV silt <br />fences where large sediment loads are anticipated, where slopes are 1:2 (vertical: <br />horizontal) or steeper, or as directed by the ENGINEER; otherwise use FDOT Type II <br />silt fence. <br />C. Turbiditv Barriers: <br />1. General: Use turbidity barriers to control sediment contamination of rivers, <br />lakes, ponds, canals, etc. <br />2. Installation: Install per the manufacturer's recommendations and per Section 104 of <br />the Florida Department of Transportation Standard Specifications for Road and <br />Bridge Construction 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. Use staked turbidity barriers in <br />water less than one -foot deep. Use floating turbidity barriers in water one -foot or <br />deeper. <br />D. Sedimentation Control From Dewatering or Pumping Operations Using Filter Bads: <br />1. Filter bags shall be manufactured using a polypropylene non -woven geotextile and <br />sewn by a double -needle machine, using a high strength nylon thread. The bag shall <br />have a fill spout large enough to accommodate a 4 -inch pump discharge hose. Straps <br />Division 2 — Technical Provisions - 01025-9 <br />F:\PublicWorks\ENGINEERING DIVISION PROJECTS\1639 69th Street 66th Avenue to US -1 Resurfacing (SCOP)\1-Admin\Bids\Bid Documents - Advertisement\DIV <br />2 TECHNICAL PROVISIONS - IRC-1639.docx <br />