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2. Reconnaissance of ground-water resources in the lower Gunnison River Basin, southwestern Colorado
3. Reconnaissance of mine drainage in the coal fields of eastern Pennsylvania
4. A reconnaissance of the water resources of the central Guanajibo Valley, Puerto Rico
5. Reported withdrawals and estimated use of water in Oklahoma during 1982
6. Results of geohydrologic test drilling in the eastern Snake River plain, Gooding County, Idaho
7. Results of test drilling and hydrogeology of Capps Coal Field, Alaska
8. Results of the U.S. Geological Survey's second international interlaboratory analytical comparison study : standard reference water samples M-86 (major constituents), T-87 (trace constituents), and P-5 (precipitation snowmelt)
9. Runoff and chemical loading in small watersheds in the Twin Cities Metropolitan Area, Minnesota
10. Reconnaissance of surficial geology, regolith thickness, and configuration of the bedrock surface in Bear Creek and Union Valleys, near Oak Ridge, Tennessee
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