Contaminated Soil Removal. Unless approved by the City, contaminated soils that are being removed shall be loaded directly into truck trailers that shall transport the soils directly to disposal facilities and not stockpiled onsite or elsewhere. If the City approves the temporary stockpiling of soils onsite, then Contractor shall cover the soil with visqueen (or other suitable material) within 1 hour. The building shall be flushed with full outdoor air for seven (7) Days prior to occupancy. Full capacity of the HVAC system shall be used for at least 2.5 ACH (air changes per hour), provided by temporary fans. During this time, the interiors shall be thoroughly cleaned, the HVAC ducts vacuumed, and air and HVAC system filters replaced.
