Excavating And Earthmoving Work – Losone (Ti) Contract For Works By Disposal Contractor. Description Of Tasks The Works Concern The Environmental Remediation And Final Arrangement Of 5 Objects Affected In The Past By Military Activities (Objects Called Lots Ii-Vi). As Part Of The Rehabilitation - The Subject Of This Contract - All Works Related To The Remediation Of The Polluted Grounds Must Be Carried Out, According To The Current Regulations On The Matter (Osites, Opsr And Osoil) And The Final Arrangement Of The Land. In Particular, Demolition, Controlled Excavation, Processing, Recycling, Transport, Disposal Of Materials With Different Degrees Of Contamination And Final Land Arrangement Works Will Have To Be Carried Out. Characterization And Quantification In The Areas Affected By The Rehabilitation Project, Numerous Investigations Have Been Carried Out Over The Years, As Part Of Ositi Procedures. These Investigations Have Allowed A Preliminary Characterization Of The Land Involved In This Contract And An Indicative Quantification Of The Land Intended For Excavation And Disposal. The Investigations Confirmed The Widespread Presence Of Pollution In The Land, Attributable To Military Activities. The Main Pollutants Detected Are: - Heavy Metals (Pb, Sb, Hg) - Pfas On The Basis Of The Technical Investigations Available, The Following Quantities Were Estimated (Excavation And Excavation Material Involved In The Project) Divided Into The Respective Pollution Classes According To Opsr: Material S Polluted By Dangerous Substances 8650 T Material E Heavily Polluted 15900 T Material B Slightly Polluted 3950 T Material T Slightly Polluted 4350 T Unpolluted Material A 650 T (Approximate Quantities) For The Remediation Works, A Specific Work Procedure Has Been Pre-Established Which Includes Controlled Excavation, Preliminary Processing On Site, Analytical Assessments, Transport And Final Disposal.
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