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<br />PGSF WMVD Storm and Combined Sewer - Construction Package 2 Removal and Disposal of Contaminated Soils <br />Project No. 180162 02 61 00 - 6 <br /> <br />B. Implement environmental controls in accordance with Contract Documents prior to the <br />start of excavation. <br />C. Strip and stockpile noncontaminated soil separately from contaminated material, for <br />areas that are considered to be below action levels based on field screening as specified <br />herein. Be responsible for protecting this material from becoming contaminated. This <br />may include covering the soil with plastic sheeting. Dispose of such soil that becomes <br />contaminated as a result of work activities at own expense. <br />D. Excavate areas of contamination in compliance with the Contaminated Material Handling <br />Plan. Limit the potential for contaminated material to be mixed with uncontaminated <br />material during excavation. Dispose of such mixed soil that becomes contaminated as a <br />result of work activities at Contractor’s own expense. <br />E. Maintain a log of the materials and visible signs of contamination encountered during <br />excavation for each area of excavation. <br />F. Divert surface water to prevent entry into the excavation. Minimize infiltration of water <br />that enters excavation. Dispose of such water that enters excavation as a result of work <br />activities at Contractor’s own expense. Limit dewatering to that necessary to ensure <br />adequate access, a safe excavation, and to ensure that compaction requirements can be <br />met. <br />G. Contain water generated during dewatering until collection and analysis of samples. <br />H. Contain contaminated water and store on Site in accordance with applicable federal, <br />state, and local disposal regulations until analytical results are obtained. <br />I. Provide approved containers, vehicles, equipment, labor, signs, labels, placards and <br />manifests, and associated disposal notices and notifications, necessary for <br />accomplishment of the Work. <br />3.03 CONTAMINATED MATERIAL STAGING <br />A. For suspected contaminated material, place material in a staging unit immediately after <br />excavation while awaiting test results. Use staging units that are in good condition and <br />constructed of materials that are compatible with the material or liquid to be staged. If <br />multiple staging units are required, clearly label each unit with an identification number <br />and keep a written log to track the source of contaminated material in each staging unit. <br />B. Isolate known and/or suspected contaminated soil from the environment. <br />C. Water-tight roll-off units lined with 6 mils thick plastic sheeting may be used to stage the <br />contaminated material. Place an impermeable cover over the units to prevent <br />precipitation from contacting the stored material. Remove and store liquid that collects <br />inside the units. <br />D. Staging units with known and suspected contaminated materials must be clearly labeled <br />with the source, date generated, and type of material. Keep a written log to track the <br />source of contaminated materials in each staging unit.