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2016-07-13_PC_Agenda_Packet
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2016-07-13_PC_Agenda_Packet
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7/11/2016 4:10:15 PM
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Response Action Plan and Construction Contingency Plan June 10, 2016 <br />Attachment C <br />Former PIK Terminal, Roseville, MN <br />Previous test locations are shown on Figure 2. Please refer to the investigation <br />documents associated with Leak#1326 and SR387 for the results of the soil, <br />groundwater, and soil vapor investigation conducted on the property. <br /> <br />1.4 Proposed Development Plans <br /> <br />No development is proposed at this time. <br /> <br />2. MONITORING PLAN <br /> <br />2.1 Overview <br /> <br />The goal of the voluntary response actions is to appropriately manage any impacted soil, <br />concrete, or bituminous that is encountered during concrete and bituminous removal in <br />accordance with risk-based criteria established by the MPCA, and properly dispose of <br />any impacted soil, concrete, or bituminousat a permitted solid waste landfill. Soil <br />below the concrete and bituminous is known to be impacted with volatile organic <br />compounds (VOCs), gasoline range organics (GRO), and diesel range organics (DRO). <br />2.2 Concrete and Bituminous Crushing and Stockpiling <br />The general contractor responsible for concrete and bituminous removal, crushing <br />oversight, and consolidation will be Forest Lake Contracting. <br />Site security will be the responsibility of the general contractor. It is expected that <br />fencing and signage will be furnished to alert pedestrians to keep out of the <br />construction zone. <br />The area of concrete and bituminous that is to be removed is shown on Figure 3. <br />Material removal will be performed by conventional excavation equipment. The <br />property currently features four above grade monitoring wells that will not be removed <br />or otherwise disturbed as part of this work. Concrete or bituminous parking and drive <br />areas surrounding the wells may need to be removed with hand tools or small <br />excavators to avoid damage by large equipment. Any wells that are damaged will be <br />promptly repaired or replaced. Erosion control will be implemented in accordance with <br />the permit. All permits will be obtained by the contractor as necessary. <br /> <br />Crushing operations will be located on the far western edge of the property; the <br />maximum distance from residential areas east of Langton Lake. The contract for the <br />crushing operations will require the crushing contractor to have on-site water available <br />to control visible dust. The project manager with Forest Lake Contracting has indicated <br />that the material to be crushed is approximately 60% concrete and 40% bituminous and, <br />based on his experience, adding bituminous to the mix reduces dust generation. The <br />crushing equipment will also have a misting system over the chute where material exits <br />3 <br /> <br />
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