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collection pipe will convey the flow to a header located at the north end of the infill <br />segment. An eight -inch diameter header will be also be located on the eastern edge of <br />the horizontal expansion area. All north -south collection laterals will be sloped to the <br />north at a minimum 0.4 percent pre -settlement slope to provide positive post -settlement <br />drainage. The geomembrane liner will be underlain by a layer of clay of adequate <br />thickness and permeability to meet the requirements of Table A of 62-701.400(3)(b)(2). <br />The proposed leachate collection system is depicted on Sheet C-5 of the infill segment <br />plan set. The header empties into a Segment 2 junction manhole, which empties to the <br />leachate pump station. The area served by the pump station increases from 27 acres to <br />39 acres. Preventative inspections will be done on an annual basis with cleaning of the <br />Segment 2 laterals performed on a bi-annual basis, if needed. Maintenance of the infill <br />segment leachate collection system will be similar to the procedures used for the <br />existing Segment 2 system. Cleanouts for each of the two leachates are provided on <br />upstream and downstream ends. A cleanout is provided for the collection system <br />manifold at the north berm of the lateral expansion area. <br />Construction of the lateral expansion liner will cover the western manholes of the <br />Segment 2 leachate collection system. The manholes will be replaced by a direct piping <br />system. These leachate collection laterals for Segment 2 can be cleaned by power <br />rod/power jet equipment from the eastern manholes, if necessary. Specialized <br />equipment is available on a contractual basis for cleaning six-inch perforated pipes up <br />to 1,200 feet in length. The following vendors are able to perform cleaning of the <br />collection laterals from one end: <br />• Florida Jetting Service - Clearwater, Florida (813) 797-8013 <br />Contact: Graham Townes <br />F-19 <br />