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<br />MISSOURI RIVER BASIN PROGRAM
<br />Quarterly Progress Report
<br />October-December 1959
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<br />Chemical Quality
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<br />The chemical-quality investigations supported by Missouri River Basin
<br />project funds were increased slightly in response to needs for information and
<br />an increase in funds for the fiscal year, Several changes in station operation
<br />were made and stations in operation during the quarter were as follows: Con-
<br />tinuous record, 6 (a year ago, 10), monthly sampling, 24 (a year ago, 19),
<br />intermittent sampling, 26 (a year ago, 24), Although the total number of sta-
<br />tions in operation was three more than a year ago, there were four fewer
<br />continuous-record stations. Field work was in progress on several ground-
<br />water projects, and analysis of samples was kept current,
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<br />Sediment Investigations
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<br />The preparation and review of reports was intensified considerably,
<br />including work on compilation of basic records for the 1957 and 1958 water
<br />years, and work on special reports for six river sub-basins and several ground-
<br />water projects, Preliminary data for the 1957 and 1958 water years were
<br />released to interested agencies in the Basin.
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<br />Chemical-quality investigations in progress under the regular program
<br />of the Geological Survey included operation of ten continuous-type stations in
<br />the Federal irrigation network, and collection of data under cooperative pro-
<br />grams with the States of Nebraska, South Dakota, and Wyoming.
<br />
<br />The sediment investigations supported by Missouri River Basin project
<br />funds were increased in response to needs for information and an increase in
<br />funds for the fiscal year. Several changes in station operations were accom-
<br />plished, and station operations during the quarter were as follows: Continuous
<br />record, 13 (a year ago, 12), monthly sampling, 8 (a year ago, 6), intermittent
<br />sampling, 6 (a year ago, 0), Included were two stations in the Wind River sub-
<br />basin operated as a part of the Departmental Wind River program and supported
<br />by funds transferred from the Bureau of Reclamation. Studies of total sediment
<br />load in Five Mile Creek also were supported by the Bureau of Reclamation,
<br />
<br />Work on the preparation and review of reports was increased consider-
<br />ably, including compilation of basic records for 1957 and 1958 water years, and
<br />special reports for five sub-basins,
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<br />Sediment investigations in progress under the regular program of the
<br />Geological Survey included studies of the trap efficiency of one detention
<br />reservoir in Ne,braska and one in Colorado and operation of one station in Iowa
<br />and two in Colorado in collaboration with the Soil Conservation Service. Co-
<br />operative programs with the States of Kansas and Wyoming were continued,
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<br />
<br />Frank C. Ames
<br />Branch Area Chief
<br />January 4, 1960
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