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<br /> <br /> <br /> <br /> <br /> <br />March 6, 2023 <br /> <br />Board of Public Works <br />City of South Bend <br />1316 County City Building <br />227 West Jefferson Boulevard <br />South Bend IN 46601 <br /> <br />RE: Renewal of Industrial Wastewater Discharge Permit <br /> <br />Dear Board Members: <br /> <br />The Division of Environmental Services recommends approving the renewal of the Industrial <br />Discharge Permit for Unifrax 1 LLC at the March 14, 2023, Board of Public Works Meeting. <br /> <br />Unifrax 1 LLC engages in the production of high temperature ceramic fiber insulation. Unifrax 1 <br />LLC requirements were reviewed for necessary changes to ensure the industrial permit remains <br />legally substantiated. After review of requirements and historical data, the following changes <br />have been made. <br />• BOD5 sampling frequency has been changed from Quarterly to a Monthly requirement. <br />• Total Suspended Solids sampling frequency has been changed from Quarterly to a <br />Monthly Requirement. <br />• pH sampling frequency has been changed from a Quarterly to a Monthly requirement. <br /> <br />If you should have any questions, please do not hesitate to contact me (574) 235-5798 or at <br />sshane@southbendin.gov. <br /> <br />Sincerely, <br /> <br /> <br />Serena Lozano-Shane <br />Pretreatment Manager <br />City of South Bend <br />Division of Environmental Services, Department of Utilities <br />(574) 235-5798 <br />sshane@southbendin.gov <br />Enclosure(s) <br /> Agenda Request form- Industrial Discharge Permit Board of Public Works Signature Page, Part <br />II- Monitoring Requirements, Permit Briefing Memo <br /> <br />CITY OF SOUTH BEND JAMES MUELLER, MAYOR <br />DEPARTMENT OF PUBLIC WORKS <br />ERIC HORVATH, DIRECTOR <br /> <br /> <br /> <br /> <br /> <br />