The Consultant shall oversee the tank cleaning, waste collection and disposal. Residual product and sludge from the UST shall be collected in a vac truck for off-site disposal. The work area shall be monitored for the presence of combustible vapors and oxygen during the field activities. The waste material including residual product and sludge shall be disposed at an off-site licensed facility for recycling. Waste manifests shall be obtained. Tank Removal and Disposal. The area around the tank shall be excavated and the tank shall be removed for examination. Excavated soils shall be temporarily stockpiled and the excavation area shall be examined for evidence of discharge of petroleum product and soil/groundwater contamination based on visual observations and field screening using an organic vapor meter (OVM). The tank and piping shall be disposed at a scrap yard. Post-Excavation Soil Sampling and Laboratory Analysis shall be conducted pursuant to removal of the UST and piping, post-excavation soil sampling shall be performed in accordance with the “NJDEP Field Sampling Procedures Manual” and as per the summary of soil sampling and analysis required in accordance with N.J.A.C. 7:26E-6.3(b). The excavation area shall be backfilled with excavated overburden soils and suitable fill material. A clean fill certificate for the backfill material shall be provided with the UST Closure Report.
