• 3,965 Geology and Geophysics Library (Leith)
• 264 Memorial Library
• 185 Wisconsin's Water Library
• 25 Map Library (Robinson)
• 20 Steenbock Library
• 18 Verona Shelving Facility
• 6 Middleton Shelving Facility
• 6 Wisconsin Historical Society Library
• 3 Wendt Commons Library - Closed
• 2 WHS State Archives Preservation Facility
• 1 Temporary Relocation Library
• 1 Wisconsin Historical Society Archives

• 5,442 Books
• 1,200 Maps, Atlases
• 133 Microforms
• 79 Journals, Magazines, Newspapers
• 2 Computer file

• 1,067 Pollution
• 1,045 Quality
• 997 Water quality
• 865 Aquifers
• 837 Water-supply
• 738 Environmental aspects
• 591 Hydrogeology
• 421 Geology
• 417 Groundwater flow
• 394 Water table
• 288 Water
• 259 Hydrology
• 184 Artesian wells
• 170 Measurement
• 142 Water quality management
• 138 Mathematical models
• 133 Nitrates
• 133 Wells
• 132 Water levels
• 115 Water resources development
• 97 Pesticides
• 96 Water chemistry
• 93 Sampling
• 92 Analysis

• 207 National Water-Quality Assessment Program (U.S.)
• 154 United States. Department of Energy
• 144 United States. Environmental Protection Agency
• 113 California. State Water Resources Control Board
• 92 United States. Bureau of Land Management
• 84 Southwest Florida Water Management District (Fla.)
• 84 United States. Bureau of Reclamation
• 82 Kentucky Geological Survey
• 69 Belitz, Kenneth
• 69 Maryland Geological Survey
• 62 New York (State). Department of Environmental Conservation
• 62 United States. Bureau of Indian Affairs
• 56 United States. National Park Service
• 55 National Regional Aquifer Systems Analysis Program (U.S.)
• 54 Arizona. Department of Water Resources
• 51 Louisiana. Department of Transportation and Development
• 51 United States. Army. Corps of Engineers
• 47 St. Johns River Water Management District (Fla.)
• 47 Wyoming. State Engineer's Office
• 46 Ground Water Ambient Monitoring and Assessment Program (Calif.)
• 44 South Florida Water Management District (Fla.)
• 42 Washington (State). Department of Ecology
• 41 California. Department of Water Resources
• 41 Meinzer, Oscar Edward, 1876-1948

• 6,695 English

• 496 United States
• 444 California
• 338 Florida
• 251 New York (State)
• 209 Nevada
• 203 Arizona
• 193 New Mexico
• 193 Texas
• 183 Colorado
• 156 Washington (State)
• 155 Idaho
• 154 Wyoming
• 140 Minnesota
• 138 Kentucky
• 125 Pennsylvania
• 117 Utah
• 116 Tennessee
• 115 New Jersey
• 114 Kansas
• 111 Nebraska
• 110 Louisiana
• 109 Hawaii
• 108 Arkansas
• 105 Michigan
• 104 Massachusetts

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