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Attachment 9 <br />tFACILITY <br />DESCRIPTION <br />Metal plating and metal finishing, ted circuit <br />fabrication and <br />' <br />protective coating applications,nare important <br />to industry in the Twin Cities <br />area. <br />coating firms are used by many ofthe area'�stmanufacturingmetal <br />businesses. Provision of these essential product treatments <br />contributes to the <br />Twin Cities' prominence in electronics and <br />computer related manufacturing and <br />associated high tech <br />industries. There are 94 companies engaged in some <br />' <br />form of <br />metal finishing business in the Twin Cities. <br />Waste metals occur as process residuals from metal finishing. <br />Federal water Pollu*ion <br />control laws now limit the discharge <br />of these toxic metals as sewered chemical <br />wastes. <br />Electroplating, printed circuit shops and metal finishing firms <br />forced to comply with <br />' <br />pretreatment standards established under <br />the Clean Water Act, are now faced with <br />a choice between two <br />basic pretreatment methods for removing their toxic metal <br />discharges from <br />their wastewater. It is that in <br />water reduction measures, waste reduction nand dimproved-house <br />"housekeeping" <br />measures are inherent <br />methods: to both of these basic <br />- In-house pretreatment using conventional systems which <br />chemically reduces chromium, oxidizes cyanide, and <br />precipitates heavy metals as hydroxide sludges for disposal <br />as a hazardous waste, and <br />Centralized treatment and recovery which allows for optimal <br />recovery of metals (primarily through the use of ion <br />exchange technologies) through improved economies of scale. <br />A centralized facility provides more feasible access to <br />secondary material markets, it allows generators to avoid <br />costly hazardous waste land disposal costs, and it <br />for a greater resource pool to fund necessary researchactivities and capital investments. <br />Twenty-eight metropolitan area companies have <br />ined tog <br />to develop a centralized treatment and recovery ofacilityether (the <br />Facility) for managing their residual waste water discharges. <br />' The Metropolitan Recovery Corporation (MRC) is the business <br />entity established to develop the Facility. <br />1 <br />1 <br />1 <br />A-1 <br />