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Complaint Investigation Summary Report*5105 <br /> COMPLAINT ID: CO0054992 Site Location: 1805 HARBOR ST <br /> Activity Summary <br /> Activity Date Recorded by <br /> 06/21/2022 Printed relevant complaint documentation. ERNEST <br /> Investigated complaint number CO0054992. Complaint states mineral run off is <br /> contaminating the near by <br /> waterway. Discussed storm drain run off with Robert Mentelos Plant Manger. He <br /> indicated storm water run off <br /> does not go to city water system. All water collected by storm drains is collected in <br /> a storm water separator. <br /> Robert M. indicates storm water is released to delta after being separated by the <br /> storm water separator. Storm <br /> water is monitored by the facility. Residual liquid left in the storm water separator is <br /> pumped out and disposed of <br /> as hazardous waste. Ore is brought in from rail cars and stored under a canopy <br /> then loaded to ships using a <br /> conveyor. Loading operations were discussed with Robert M.. He indicated tarps <br /> are used to collect any mineral <br /> ore lost from loading operations. The ore is also watered to prevent the ore from <br /> turning to dust during the <br /> loading process. <br /> 5105.rpt Page 2 of 2 <br />