Division of Materials and Waste Management (DMWM), Class I and Class II Composting Operator Certification Program , comments due March 7, 2016 . Division of Materials and Waste Management (DMWM), Construction and Demolition Debris (C&DD) Operator Certification Program , comments due March 7, 2016 . Division of Surface Water (DSW), Public Hearing and Comments for Proposed Water Quality Standards Rules , April 5, 2016 . Save the date for our May 11, 2016 Dredged Material - Make it Your Business - Digging Up Ideas Workshop . Location: Lorain County Community College. Don't miss this opportunity to explore ways Ohio can repurpose dredged material from Lake Erie's harbors - join policymakers in discussing what you need to make your dredged material product or idea a reality. More details to follow soon. Visit our Lake Erie Dredged Material Program website for additional information on this issue. Please email Leanne Greenlee or call (614) 705-1012 with questions.