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<br />. jC:: <br /> <br />"- <br />'" <br /> <br />, . i-v~'-, <br />aemiCal Quality and sediment~/ 1\'l.)1E(~""'D~fP:\1] <br />Missouri River Basint< U1l tC <br />Den 01957 <br /> <br />001885 <br /> <br />Quarterly Progress Report <br />July-September 1957 <br /> <br />COLO, VIA WI <br />CONSERVATION BOARD <br /> <br />Chemica:!. Quality <br /> <br />The chemical-quality program supported by Missouri River Basin Pro- <br />ject funds consists of investigations of chemical quality of both surface and <br />ground water and preparation of reports based on these investigations. <br />Investigations will be reduced materially for the fiscal year as a whole <br />owing to reduction of funds and to completion of some project investiga- <br />tions by other agencies; however, the work ievel for this quarter was in- <br />creased owing to addition of several stations during the quarter, and <br />retention of several stations to the end of the quarter in order to com- <br />plete the records through the water year. Changes made and to be made are <br />indicated in the list of stations given in the Program Section of this report. <br /> <br />Work was continued in connection with collection and analysis of <br />samples and preparation of chemical-quality sections for reports of ground- <br />water resources of several areas. <br /> <br />Other chemical-quality investigations in progress during the quarter, <br />but supported by funds from sources other than the Missouri River Basin Pro- <br />ject, included the following: Operation of 14 irrigation network stations <br />supported by funds appropriated directly to the Geological Survey; studies of <br />three lakes in the Red River of the North Basin in cooperation with the Corps <br />of Engineers; compilation and evaluation of available data for the Platte <br />River basin in Wyoming, and operation of two stations in the North Platte <br />River Basin in cooperation with the State of ~lyoming; compilation of all <br />chemical-quality data obtained in South Dakota by the Geological Survey, and <br />investigation of the occurrence of selenium, fluoride, and boron in waters of <br />selected areas in South Dakota in cooperation with the State of South Dekota. <br /> <br />2edimentation <br /> <br />The sediment program supported by Missouri River Basin Project :funds <br />consists of investigations of sediment discharge and sediment characteristics <br />of selected streams in basins of all major tributaries to the l~ssourl River, <br />special studies of hydraulic parameters associated with sediment transport, <br />and preparation of reports based on these investigations. Investigations will <br />be reduced materially for the fiscal year as a whole owing to reductions <br />in funds and completion of some project investigations of other agencies; <br />however, the work level for this quarter remained about the same as last <br />year because stations started and discontinued nearly balanced. Changes made <br />and to be made are indicated in the list of stations given in the Program <br />Section of this report. <br /> <br />Sedimentation investigations conducted as a part of the Departmental <br />Wind River Program were continued. A part of this investigation is supported <br />by funds transferred by the Bure!\u of Reclemation. Investigations in the <br />Cheyenne River Basin are also supported by Bureau of Reclamation funds. <br /> <br />Studies of upland erosion and deposition were conducted in association <br />with hydrologic studies in land-treatment projects in the Willow Creek area <br />near Fort Peek, Montana; the Wind River and Bighorn BaSins, Wyoming; and the <br />Box Creek area in the Cheyenne Basin, Wyoming. Sediment surveys were made on <br /> <br />\ <br /> <br />