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April 8, 2014 <br />Atkinson,5. REGIONAL WATER QUALITY CONTROL BOARD (Staff Contact- Ross <br />rrr <br />a. 1 (A.3) <br />Proposed as Part of the Project: <br />Existing measures to discourage birds from the landfill will be continued. <br />Surface area of ponds will be limited to the extent feasible. <br />Current Status: Existing measures to discourage birds from the landfill will <br />be continued. In addition, a falconer is used to deter birds. The surface area <br />of the ponds is limited to the extent feasible. <br />b. 44 (F.1) <br />Proposed as Part of the Project: <br />As part of the design plans for the proposed landfill, Forward Landfill <br />completed calculations of the 1000 -year peak discharges. The hydraulic <br />and drainage study was used to design appropriate drainage controls. <br />Drainage controls were designed to prevent contact between surface <br />water and refuse. Site run-on and run-off control facilities consist of drains <br />and perimeter ditches that channel surface water to lined holding and <br />evaporation ponds on the site. The surface -water collection drain system <br />will be designed to divert the water to the storm water collection basin in <br />the southwest comer of the current Austin Road Landfill, at times when <br />enough surface water accumulates to have discharged into the collection <br />basin. All waste at the proposed Forward Landfill will be separated from <br />the north and south branches of Littlejohns Creek by a levee system or <br />other acceptable method designed to protect the site from a 100 -year <br />flood event. <br />The project includes channel reconfiguration and localized flood protection <br />berms to isolate the landfill surfaces from floodwaters. <br />The project design also includes provision of replacement floodplain area <br />and storage volume in an easement along the relocated North Branch of <br />the South Fork of South Littlejohns Creek. <br />The channel and floodplain storage easement are designed to <br />accommodate the 100 -year, 24-hour storm. The design also includes a <br />three-foot freeboard. <br />Current Status: The stormwater control measures are being implemented as <br />discussed above -and in _accordance with the JTD. The floodplain easement <br />has been maintained. <br />Page 24 <br />