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• <br /> City Inspections Department and local well contractors. <br /> Another way in which to identify unsealed wells is to look for clues: some clues are: <br /> • windmills, usually would use wind power to draw water out of a well <br /> ♦ unaccounted for pipes or areas in the foundation where pipes used to run <br /> • the building was constructed and occupied prior to municipal water being available to that area <br /> ♦ well pits or shacks <br /> a magnetometer may be used to identify metallic objects within 3-4 feet underground <br /> FRIGE <br /> •CFCs (chlorofluorocarbons) and HCFCs (hydrochlorofluorocarbons) are man-made refrigerants <br /> that destroy the ozone layer. <br /> •CFCs and HCFCs must not be released into the atmosphere. These refrigerants must be <br /> recovered by technicians certified by a U.S. EPA approved program using proper refrigerant <br /> recovery equipment. <br /> • Examples of appliances that contain CFCs and HCFCs include: <br /> • refrigerators ♦ dehumidifiers ♦ central air conditioners <br /> • room air conditioners ♦ vending machines • heat pumps <br /> • freezers ♦ chillers • ice machines <br /> I • food display cases I • water coolers I <br /> •Refrigerant substitutes (including HFC-134a) must also be recovered and not vented to the <br /> atmosphere. <br /> iiliEniMigninininginEMEMENENETIRE <br /> E <br /> •Some fire extinguishers contain halons which destroy the ozone layer. <br /> •Halons must be recaptured when recharging, servicing, or retiring the unit. There are a number <br /> of companies in Minnesota that have the proper halon recovery equipment. <br /> •Halons can be used as total flooding agents in areas such as computer rooms, libraries, spaces <br /> floors, and near electronic and medical equipment. <br /> •Halons are also found in some portable fire extinguishers. <br /> Halon fire extinguishers must be removed from the facility prior to demolition. <br /> . 7ON LAND LL ACCEPT _ :E.:;::::>:>:>:»>:::>;::.:::i::::: <br /> mmoiii <br /> :igi:::::i*..�::;;::.::.::.::.;;:.:<. Ag E A D ACCE 'TA. L <V4`A :>: <br /> . .:. ... .. :. <br /> In the disposal of demolition debris, certain materials may or may not be acceptable at the <br /> Demolition Land Disposal Facility (Demo LDF). Certain Demo LDFs have Industrial Solid Waste <br /> Management Plans (IS`VMP) that allow them, under special provisions, to accept some of the <br /> following materials. <br /> • 4 <br />