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Addendum # 1 11 -06-2013 <br /> Be 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 Index No . 102 . <br /> 3 . Product : All material shall be new and unused . Use FDOT Types II through <br /> IV silt fences where large sediment loads 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 we 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 /> ( 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 /> MEMEMENNAM <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 <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 large <br /> enough to accommodate a 4-inch pump discharge hose . Straps shall be <br /> attached to the bag to secure the hose and prevent pumped water from <br /> escaping without being filtered . <br /> 2 . Installation : Install in accordance with the manufacturer' s specifications . Use <br /> as many filter bags as required , at no additional cost to the OWNER. Legally <br /> dispose of the bags offsite , at no cost to the OWNER . If the bags are placed <br /> on aggregate to facilitate filtration efficiency, do not use limerock aggregate . <br /> 3 . Product : The filter bag shall be supplied with lifting straps . <br /> a . " DIRTBAG 53 or 55 as applicable , " supplied by ACF Environmental , <br /> Inc . ( 1 -800-448-3636 ) . <br /> b . " DANDY DEWATERING BAG " supplied by Dandy Products , <br /> Inc . ( 1 -800=591 =2284) . <br /> 01025-6 Technical Specifications <br /> F:\Public Works\ENGINEERING DIVISION PROJECTS\1336-Gifford Senior Ballfield\Admin\bid documents\ADDENDUMS\Technical <br /> Cnnrifirnfinnc rinr <br />