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Attachment A <br />FACILITY DESCRIPTION <br />including printed circuit <br />Metal plating and metal finishing, PP <br />a lications, are imp <br />ortant 1 <br />fabrication and protective coating <br />. Prod <br />Twin Cities area from these meta <br />to industry in the T he area s manufacturing <br />many of t <br />coating firms are used by product treatments <br />businesses- ;--vision of these essential <br />ominencein electronics and <br />h tech <br />contributes thmanufacturing and associated high <br />computer relatedare 94 companies engaged in some form of <br />industries. There <br />metal finishing business in the Twin Cities0 <br />asfinishing- <br />process residuals from,metal he discharge <br />Waste metals occur <br />ws now <br />Federal water pollution cont roedlchemicallwastes. firms <br />of these toxic metals as sewer established under <br />Tinted circuit shoes and metal finishing <br />Electroplating, P pretreatment standard <br />l with p <br />forced to Comply <br />are now faced with a choice xbctmetal two <br />the Clean Water ► their <br />basic pretreatment methods for removing <br />b It is noted imhrovedin-house <br />discharges from their wastewater* <br />waste reduction and P <br />water reduction measures, <br />"housekeeping" <br />measures are inherent to both of these basic <br />methods: conventional sy stems which <br />in-house pretreament usingizes amide, and -sal <br />chemically reduces chromium, <br />hyda c <br />oxidesludges for disp <br />precipitates heavy metals <br />as a hazardous waste, and hich allows for optimal <br />Centralized treatme(prnt im (primarily through the use of ion <br />es of scale. <br />recovery of metals (P h improved economy. <br />exchange technologies) throng le access <br />to avoid <br />facility Provides more feasible access o <br />A centralized it allows ge provides <br />secondary material markets► -sal costs, and it p <br />costly hazardous waste land disposal <br />necessary research <br />for a greater resourceP <br />activities and capital investments. <br />olitan area companies have <br />joined together <br />Twenty-eight metrop facility (the <br />veld a centralized treatmeiaualdwastevwater discharges. <br />to develop <br />managing their res <br />Facility) Recovery <br />Corporation (MR <br />C� is the business <br />The Metropolitan <br />entity established to develop the Facility. <br />A-1 <br />