Environmental Protection Agency http://www.epa.state.oh.us/ Department of Housing and Urban Development http://www.hud.gov/ Department of Natural Resources http://www.ohiodnr.com/ Department of Transportation http://www.dot.state.oh.us/ Prevailing Wage Rates http://wagehour.bes.state.oh.us./w3/webwh.nsf?Opendatabase Public Works Commission http://www.pwc.state.oh.us/page1.htm