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Institution
Collection
2,005
Gov Pub Electronic
1,493
Storage Gov Pub
586
Gov Pub Microfiche
90
CO Gov Pub Electronic
30
Main Books 3rd Floor
27
Storage Folded Maps
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22
Electronic Access
16
Spec Coll 3rd Floor
6
Storage Gov Pub Media
4
Spec Coll Energy 3rd Floor
1
New Books 1st Floor
1
Reserve 1st Floor
1
Spec Coll Oversize 3rd Floor
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Format
Subject
Water quality
539
Groundwater
416
Water-supply
311
Groundwater Quality
304
Water Pollution
199
Stream measurements
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198
Hydrology
189
Hydrogeology
159
Aquifers
156
Streamflow
131
Groundwater Pollution
120
Nutrient pollution of water
100
Water quality management
94
Groundwater flow
78
River sediments
78
Suspended sediments
72
Water resources development
70
Water Composition
61
Runoff
57
Water chemistry
54
Pesticides Environmental aspects
52
Water quality biological assessment
51
Coal mines and mining Environmental aspects
41
Lakes
39
Sediment transport
38
Rivers
38
Water table
37
Land use Environmental aspects
37
Urban runoff
37
Water levels
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Author
2,218
Geological Survey (U.S.)
1,396
Geological Survey (U.S.),
298
National Water-Quality Assessment Program (U.S.)
113
United States. Environmental Protection Agency
89
United States. Bureau of Reclamation
73
United States. Bureau of Land Management
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71
United States. National Park Service
47
U.S. Fish and Wildlife Service
47
United States. Army. Corps of Engineers
40
United States. Environmental Protection Agency. Office of Water
39
United States. Department of Energy
36
United States. Bureau of Indian Affairs
34
California. State Water Resources Control Board
28
New York (State). Department of Environmental Conservation
27
Geological Survey (U.S.). Water Resources Division
23
New Jersey. Department of Environmental Protection
23
Washington (State). Department of Ecology
22
Wisconsin. Department of Natural Resources
21
Missouri. Division of Environmental Quality
20
United States. Environmental Protection Agency,
19
Belitz, Kenneth
19
Colorado. Department of Public Health and Environment. Water Quality Control Division
19
Kansas. Department of Health and Environment
19
SpringerLink (Online service)
19
Wells, J. V. B.
18
Florida. Department of Environmental Regulation
17
Ground Water Ambient Monitoring and Assessment Program (Calif.)
17
Illinois. Environmental Protection Agency
17
Pennsylvania. Department of Environmental Protection
16
Southwest Florida Water Management District (Fla.)
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Genre
115
Maps
72
Statistics
61
Periodicals
26
Technical reports
14
Databases
12
Conference papers and proceedings
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10
Handbooks and manuals
9
Bibliographies
6
Annual reports
5
Case studies
5
Congresses
5
Dictionaries
5
Drawings
3
Bathymetric maps
3
Catalogs
3
Electronic government information
3
Legislative hearings
3
Serial publications
2
Academic theses
2
Directories
2
Gazetteers
1
Abstracts
1
Electronic journals
1
Examinations
1
Geographic information systems
1
History
1
Indexes
1
Interactive multimedia
1
Legislative materials
1
Remote-sensing maps
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Literary Form
Region
468
United States
307
Colorado
230
California
176
Florida
145
Texas
121
Wisconsin
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115
Kansas
109
Minnesota
109
Oregon
105
New York (State)
99
Washington (State)
85
Pennsylvania
84
North Carolina
82
Ohio
77
New Jersey
75
Idaho
72
Colorado River Watershed (Colo.-Mexico)
71
Nevada
69
Missouri
67
Arizona
63
Utah
62
Wyoming
55
Illinois
55
Mexico, Gulf of
55
Missouri River Watershed
54
Mississippi River Watershed
53
Virginia
52
Georgia
52
Louisiana
51
Massachusetts
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