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Institution
Collection
619
Gov Pub Electronic
347
Storage Gov Pub
197
Gov Pub Microfiche
79
CO Gov Pub Electronic
9
Main Books 3rd Floor
7
Storage Folded Maps
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4
Electronic Access
2
Audio and Visual 1st Floor
1
Flat Maps 2nd Floor
1
Oversize 3rd Floor
1
Spec Coll 3rd Floor
1
Storage Gov Pub Media
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Format
Subject
Groundwater Quality
311
Water quality
161
Water quality management
159
Hydrogeology
144
Groundwater Pollution
107
Aquifers
more ...
98
Water-supply
76
Drinking water
72
Groundwater flow
48
Groundwater
35
Pesticides Environmental aspects
32
Hydrology
28
Water levels
28
Water table
24
Water quality Measurement
23
Nitrates Environmental aspects
23
Water chemistry
22
Water resources development
21
Groundwater Sampling
21
Water Nitrogen content
20
Land use Environmental aspects
20
Wells
19
Water Pollution
16
Springs
15
Geochemistry
15
Monitoring wells
15
Sanitary landfills Environmental aspects
14
Saltwater encroachment
13
Geology
13
Water Pesticide content
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Author
648
Geological Survey (U.S.)
458
Geological Survey (U.S.),
105
National Water-Quality Assessment Program (U.S.)
64
Colorado. Department of Public Health and Environment. Water Quality Control Division
64
Source Water Assessment and Protection Program (Colo.)
44
California. State Water Resources Control Board
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29
Belitz, Kenneth
25
United States. Environmental Protection Agency
23
Ground Water Ambient Monitoring and Assessment Program (Calif.)
22
California. State Water Resources Control Board,
21
Wyoming. Department of Agriculture
20
Fram, Miranda S.
19
Belitz, Kenneth,
19
Wyoming. Department of Environmental Quality
18
United States. Department of Energy
18
Welch, Alan H.
17
New Hampshire. Water Resources Division
15
United States. Environmental Protection Agency. Office of Water
15
Williams, Rhea P.
12
United States. Bureau of Land Management
11
Christenson, Scott C.
11
Eddy-Miller, Cheryl A.
11
Milby Dawson, Barbara J., 1964-
10
Andrews, William J., 1962-
10
Metro Wastewater Reclamation District (Colo.)
10
Remley, Kendra J.
9
United States. National Park Service
8
Arkansas Geological Commission
8
Colorado. Oil and Gas Conservation Commission
8
Dumouchelle, D. H.
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Language
Genre
47
Maps
13
Statistics
11
Handbooks and manuals
7
Technical reports
6
Electronic government information
4
Conference papers and proceedings
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4
Databases
4
Periodicals
3
Bibliographies
3
Congresses
2
Dictionaries
2
Documentary films
2
Government publications
2
Nonfiction films
1
Case studies
1
Environmental films
1
Feature films
1
Interviews
1
Surveys
1
Video recordings
1
Video recordings for the hearing impaired
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Literary Form
Region
116
Colorado
111
California
67
United States
53
Florida
45
Nevada
35
New York (State)
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33
Minnesota
32
Wyoming
31
Oklahoma
30
Pennsylvania
28
Idaho
27
Kansas
27
Tennessee
27
Washington (State)
25
Arizona
25
New Jersey
25
Wisconsin
24
Michigan
23
New Hampshire
23
North Carolina
23
Utah
22
Ohio
20
Georgia
20
Texas
20
Virginia
18
Indiana
18
Maryland
18
Nebraska
17
Arkansas
17
Massachusetts
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Call Number
Year of Publication