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1997-304
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1997-304
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Last modified
3/27/2018 2:41:17 PM
Creation date
2/8/2017 9:30:59 AM
Metadata
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Template:
Official Documents
Official Document Type
Contract
Approved Date
11/04/1997
Control Number
97-304
Entity Name
Waste Management of Florida
Subject
Operation Class 1 Landfill
Construction and Partial Closing
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A <br />1 <br />1 <br />0 <br />s <br />Part 3 Construction <br />3.01 Earthwork <br />er � <br />a. The Contractor shall do all excavating, filling, shaping, grading, and other earthwork <br />required to construct and maintain drainage ways that shall convey the runoff from the <br />drainage area tributary to each drainage way. Earthwork shall conform to applicable <br />requirements of the earthwork section. <br />3.02 Temporary Drainage Ways <br />a. The Contractor shall construct temporary, grassed drainage ways on top of the <br />constructed, but unfilled cell area protective soil layer and on each "intermediate cover" <br />terrace of the Class I Landfill. The earth cover on each lift shall have a minimum <br />thickness of 24 inches under the drainage way. The drainage ways shall be broad, <br />shallow swales or flat-bottomed ditches with sufficient capacity to convey the runoff at a <br />shallow depth and slow velocity to minimize erosion. Transition sections shall be <br />provided at the interim letdown downstream end of each drainage way on a landfill lift to <br />direct the flow to the temporary letdown that conveys runoff down the slope of each <br />landfill phase. Each temporary drainage way shall be constructed as soon as possible <br />after the landfill lift has been placed at the site of the drainage way and shall be <br />maintained until covered with the next lift of solid waste. <br />b. The Contractor shall construct temporary grassed drainage ways at other locations where <br />they are required for conveying concentrated runoff and preventing erosion, as <br />determined by the Sanitary Landfill Supervisor. <br />c. The Contractor shall relocate the stormwater diversion barriers on the Segment I east side <br />slope, and place sand in accordance with the operational sequence outlined in the <br />operations permit application. The County Solid Waste Disposal District Supervisor or <br />his designee must be present when diversion berm relocation is in progress. The <br />Contractor shall also permanently cap the temporary stormwater piping as shown on the <br />infill segment plan set. The Solid Waste Disposal District Supervisor shall observe the <br />plugging of temporary stormwater pipes. <br />3.03 Drainage Stabilization <br />a. The Contractor shall, upon completion of grading and shaping of each temporary grassed <br />drainage way, proceed with stabilization by fertilizing, seeding, mulching or sodding in <br />conformance with the seeding and sodding section. Stabilization work shall be <br />performed as soon as conditions permit in order to minimize erosion. <br />3.04 Corrugated Metal Pipe Culverts <br />a. Where temporary roadways are constructed across grassed drainage ways, the Contractor <br />shall install corrugated metal pipe culverts. Culverts shall have sufficient capacity to pass <br />2.3-3 <br />s. <br />eplASs, .Is.97 <br />
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