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CCR Projects

Hollow Rock

Project Description

The Site consists of a 150 acre Class III Residual Solid Waste landfill located in Jefferson County, Ohio, and associated facilities to manage leachate and stormwater. The residual waste placed in the landfill primarily consists of gypsum generated by air-pollution control equipment at a coal-fired power plant. The original landfill design is comprised of fourteen cells, of which five have been constructed.

Leachate is collected within each landfill cell sump and conveyed to the leachate storage basins. The leachate in the basins is pumped into tanker trucks and managed off-site. Leachate generation rates are a concern as currently one cell is open and the other four cells only have temporary soil cover.

Due to certain project objectives and uncertainties, KEY was tasked with developing a flexible closure plan to allow the client to explore various opportunities while maintaining compliance with the Federal CCR Rule and Ohio EPA permit requirements.

Activities Performed

As part of pre-acquisition due diligence, KEY completed a Phase I Environmental Site Assessment according to ASTM E1527 and identified Site Recognized Environmental Conditions (RECs), Historical Recognized Environmental Conditions (HRECs), Controlled Recognized Environmental Conditions (CRECs), and Observations.

During project transition activities KEY assisted with site permit transfers such as the Title V air permit, NPDES permit, and annual site operating license. KEY has assisted with the update of Site-specific plans such as the Stormwater PollutionPrevention Plan (SWPPP) and Spill Prevention, Control, and Countermeasure (SPCC) Plan.

KEY developed a compliance schedule including sampling dates, report submittals, and recently completed the Annual Landfill Inspection as required by the CCR Rule. Key is also preparing the Annual Operations Reports as required by the OEPA.

In order to reduce operating costs, KEY has completed a leachate generation analysis and evaluated alternate transportation via a 2.2 mile pipeline. There are several primary pipeline design challenges including: aerial crossings over several hills, a valley, and roadways along the existing conveyor route; potential freezing as the pipeline is exposed; and, batch mode operations. To minimize insulation and heating costs, the pipeline design is including the ability to clear the line with a pipe pig between batch pumping events. KEY has proposed to complete the work under a design-build contract approach.

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