• 929 Geology and Geophysics Library (Leith)
• 74 Wisconsin's Water Library
• 4 Memorial Library
• 3 Verona Shelving Facility
• 2 Map Library (Robinson)
• 1 Steenbock Library
• 1 Wendt Commons Library - Closed

• 1,676 Books
• 68 Microforms
• 36 Maps, Atlases
• 4 Computer file
• 2 Photos, Drawings, Prints

• 442 Groundwater
• 386 Mathematical models
• 304 Hydrogeology
• 231 Computer simulation
• 220 Aquifers
• 129 Environmental aspects
• 120 Water-supply
• 118 Pollution
• 117 Water quality
• 85 Water table
• 82 Quality
• 64 Hydrology
• 53 Computer programs
• 51 Measurement
• 51 Water levels
• 49 Streamflow
• 48 Simulation methods
• 42 Water withdrawals
• 41 Data processing
• 41 Stream measurements
• 36 Saltwater encroachment
• 34 Hydrologic models
• 33 Water
• 32 Artificial groundwater recharge

• 60 United States. Environmental Protection Agency
• 56 United States. Department of Energy
• 38 United States. National Park Service
• 37 United States. Department of Energy. Nevada Operations Office
• 26 United States. Bureau of Reclamation
• 24 National Regional Aquifer Systems Analysis Program (U.S.)
• 21 New Jersey. Department of Environmental Protection
• 21 Southwest Florida Water Management District (Fla.)
• 20 National Water-Quality Assessment Program (U.S.)
• 19 United States. Army. Corps of Engineers
• 18 Hill, Mary Catherine
• 18 Nassau County (N.Y.). Department of Public Works
• 17 Reilly, Thomas E
• 17 United States. Bureau of Land Management
• 17 Washington (State). Department of Ecology
• 16 Masterson, John P
• 16 South Florida Water Management District (Fla.)
• 14 Barlow, Paul M
• 14 St. Johns River Water Management District (Fla.)
• 13 Harbaugh, Arlen W
• 13 Idaho. Department of Water Resources
• 13 Suffolk County (N.Y.). Department of Health Services
• 13 Walter, Donald A
• 12 Goode, Daniel J

• 1,715 English

• 104 California
• 90 Florida
• 82 Nevada
• 78 New York (State)
• 68 United States
• 58 Texas
• 54 New Mexico
• 47 Arizona
• 47 Minnesota
• 47 New Jersey
• 46 Massachusetts
• 43 Washington (State)
• 38 Idaho
• 34 Pennsylvania
• 32 Utah
• 31 Wisconsin
• 30 Indiana
• 29 Tennessee
• 27 Ohio
• 26 Kansas
• 25 Virginia
• 22 Arkansas
• 21 Hawaii
• 21 South Carolina
• 20 Georgia

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