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<br />Auguot 1952 <br /> <br />-----'., <br />) <br />, / <br />. GEOLOGICAL SURVEY <br />'---------- <br /> <br />~~!"':"fi'';:y1Ji'l7'\\ <br />~ \~~ L:~ Ji '\;~ i.c:1 UJ <br /> <br />SEP 31952 <br /> <br />'.LOItADO 'VII ^ TER <br />CQl!I.8IRV^,/ON bOARD <br /> <br />." <br /> <br />. <br /> <br />( '.' <br /> <br />WATER RESOURCES INVESTIGATIONS <br /> <br />Ground water. - "Routine periodic water-level measuremcuts in <br />observatio;;- w"lls me Plaue and recording gages on wells serviced in <br />accordance with previous scheduling. Preliminary office calculations, <br />map preparation, and sJ.1llilar work performed on field projects. Office <br />review and preparation of reports for publication continued. Progress <br />mede also included the following: <br /> <br />MONTANA <br /> <br />Field work continued on the Gallatin Valley area; one <br />contract test hole (492ft during llonth) completed at a depth of 882 <br />ft; 8 pumping tests were '.'lade and 40 sq 1.li of reconnaissance geologic <br />Dlapping completed; spirit levels were run to 19 wells; 34 wells were <br />in~entoried; 35 samples of outcrop formations and water-bearing <br />~aterials obtained for laboratory analyses. Field work continued on <br />the Crow ARcncy Indian Reservation; 37 samples (139ft of test hole) <br />of water-bearing materials obtained for laboratory analyses; 40 sq mi <br />of reconnaissance geologic mapping and 523ft (22 holes) of jetted test <br />holes completed; 22 wells were inventoried and spirit levels run to 151 <br />observation wells; advice was given Crow Agency concerning enlargement <br />of the town water supply from ground-water sources. Observation wells <br />measured in the Crow Creek and Townsend Valley areas <br />. . <' blO <br />\,.UN)t.i~" 1...11.....~ ",,~ ' <br /> <br />SOUTH DAKOTA <br /> <br />Two "till" aquifer performance pumping tests completed on <br />the Oahe-James River project; 2 long term pumping tests in the Lake <br />vdkota silts continued. Observation wells in the Angostura project <br />area wer0 measured. Recording gages serviced in the Fort Randall dam <br />area.. <br /> <br />\HOMING <br /> <br />Field draft of a reconnaissance report on the Horse-Cherry <br />Creek basins transmitted to U. S. Bureau of Reclamation and Washington, <br />D. C. offices for administrative review. Observation wells measured on <br />the Riverton project, ,llieatland Flats, and Glenda areas. Preliminary <br />work done on the reconnaissance report of the North Platte River basin <br />below Douglas and Laramie. <br /> <br />2390 <br />