JUMP CONTENT US EPA UNITED STATES ENVIRONMENTAL PROTECTION AGENCY SEARCH RELATED TOPICS THE GREAT LAKES SHARE FACEBOOK TWITTER PINTEREST CONTACT GREAT LAKES FACTS WEST ERIE DOMINANT PHYSICAL CULTURAL HERITAGE NORTH CANADA MILES VAST INLAND FRESHWATER WATER RECREATION HOST LARGEST SURFACE SYSTEM POLAR ICE CAPS FRESH FRESH WATER SUPPLY PHYSICAL FEATURES ATLAS THIRD EDITION AVAILABLE PUBLICATION SERVICE BATHYMETRY DATA MAPS GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY BASIN PARTS THE UNITED STATES NEARLY CANADIAN AGRICULTURAL PRODUCTION AMERICAN FARM PRODUCTION POPULATION PEOPLE THE CANADIAN DEFINED ENGINEERING THE BASIN DRAIN CHANNELS COMBINATION POLITICS RIDEAU EXCEPTION ORANGE POLYGON LAWRENCE CLEAN WATER ACT DEFINES THE US DETAIL NORTHEAST BOUNDARIES HYDROLOGIC UNIT CODES CHANGE DISPLAY COUNTIES OR REPORT BED BUGS CHEMICALS TOXICS CLIMATE CHANGE ENVIRONMENTAL INFORMATION LOCATION LIVING HEALTH CLEANUP LEAD MOLD RADON INDEX LAWS BUSINESS SECTOR TOPIC COMPLIANCE EXECUTIVE ORDERS POLICY GUIDANCE REGULATIONS ADMINISTRATOR CURRENT LEADERSHIP ORGANIZATION CHART STAFF DIRECTORY BUDGET RESULTS JOBS INTERNSHIPS HEADQUARTERS OFFICES REGIONAL LABS RESEARCH CENTERS EPA ADMINISTRATOR GRANTS NO FEAR ACT DATA PRIVACY SECURITY INSPECTOR GENERAL NEWSROOM OPEN GOVERNMENT WHITE HOTLINES FOIA REQUESTS QUESTIONS YOUTUBE FLICKR INSTAGRAM LAST