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Artificial-recharge investigation near Aurora, Nebraska: 2-year progress report
William F. Lichtler, David I. Stannard, Edwin Kouma
1979, Open-File Report 79-1492
This report presents the results of the first 2 years of a 4-year investigation of potential for artificial recharge and recharge methods that might be used to mitigate excessive aquifer depletion in Nebraska.A Quaternary sand-and-gravel aquifer near Aurora, Nebr., was recharged by injecting water through a well at a rate...
Relation between proposed developments of water resources and seepage from the All-American Canal, eastern Imperial Valley, California
Omar J. Loeltz, S. A. Leake
1979, Open-File Report 79-744
A two-layer digital model designed for this study indicated that sealing of the Coachella branch of the All-American Canal would cause an eventual increase in seepage from the All-American Canal of about 15,000 acre-feet annually. Sealing of both the Coachella Canal and the segment of the All-American Canal between Pilot...
Mahd Adh Dhahab: Precambrian epithermal gold deposit, Kingdom of Saudi Arabia
Robert W. Luce, James R. O’Neil, R.O. Rye
1979, Open-File Report 79-1190
The largest and most productive mine in Saudi Arabia in ancient and modern times has been Mand adh Dhahab. Country rocks in the district are pyroclastic and clastic rocks that belong to the Halaban group of late Precambrian age. From oldest to youngest, the units are: andesite, lower agglomerate, lower...
Streamflow statistical summaries for Colorado streams through September 30, 1975: Volume 1: Missouri River, Arkansas River, and Rio Grande Basins
Harold E. Petsch
1979, Open-File Report 79-681
Statistical summaries of daily streamflow data for 246 stations east of the Continental Divide in Colorado and adjacent States are presented in this report. Duration tables, high-flow sequence tables, and low-flow sequence tables provide information about daily mean discharge. The mean, variance, standard deviation, skewness, and coefficient of variation are...
Water-quality reconnaissance of lakes in Voyageurs National Park, Minnesota
G. A. Payne
1979, Open-File Report 79-556
Water samples were collected from three lakes in Voyageurs National Park to assess chemical and biological water quality in March and August 1977. Bottom material samples were also collected and analyzed for chemical quality. Results of the analyses show that the water system was dilute; specific conductance ranged from 32...