CORRESPONDENCE_2013-2014 - Laserfiche WebLink

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fv � Pond #3 includes a spill way that allows the non -contact water to flow directly into the North Fork of Little Johns Creek. However, the non -contact water is sampled and analyzed in accordance with Forward Landfill Storm Water Monitoring Plan before the elevation of the non - contact water in the pond is at the spillway elevation. If the non -contact water is unacceptable for release, the liquid will be transferred to the double lined leachate evaporation ponds. During the recent past, this location has been more than sufficient to retain all stormwater throughout the season, and no non -contact water has been discharged to the creek or relocated to the double - lined leachate ponds. During the 2013-2014 wet season, the top deck of the Austin Road Unit of the Forward Landfill slopes primarily to the south and has been graded to drain to a series of culverts and five (5) downdrains. The non -contact water is then directed to the sedimentation ponds via a system of v - ditches. Downdrains were constructed during the 2012-2013 winter season to prevent erosion. V -ditches along the north and west of Austin Road Unit were improved and graded to direct non - contact water to the existing sedimentation pond or the lift station. Stormwater that drains along the vegetated northern slope of the Austin Road Unit is collected in a ditch that borders the perimeter road. Historically, stormwater that has accumulated in this ditch has been manually pumped to the stormwater retention ponds, and this process will continue as necessary. During the 2012-2013 winter season, Forward Landfill added a lift station at the eastern end of the ditch so that accumulated stormwater is automatically pumped to the stormwater pond when necessary. 4. Leachate All active WMUs are built to Subtitle "D" standards and have complete leachate collection and removal systems (LCRSs) installed. Leachate is collected at the sump located in each WMU and directed to one of two leachate evaporation ponds. One pond is located in the southwest corner of the southern portion of the Forward Landfill. The other is located directly west of WMU FU -03. The volume of leachate discharged to the leachate ponds is recorded in an onsite log. The site will be routinely inspected for leachate seeps from the landfill slopes. The inspections will be performed daily and any observed leachate seeps will be recorded in the inspection log. If seeps are observed, the site engineer will be contacted and the cause of the seep will be investigated. The LEA will also be notified.