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<br />. <br /> <br />. <br /> <br />A new project in the metropolitan area of Denver was initiated <br />in August. It involves studies of small watersheds in urban areas <br />in cooperation with the Inter-County Regional Planning Commission. <br />The overall program includes participation by the consulting firm <br />of Wright-McLaughlin Engineers, who are responsible for producing <br />a manual on urban drainage design. The first year's effort by the <br />Geological Survey will be largely one of establishing a network of <br />streamflow stations on small urban watersheds. <br /> <br />Another new project was initiated with the Air Force Academy. <br />The purpose will be to replace a well abandoned because of reduced <br />yield. The Survey will select the site and supervise the drilling. <br />The Pueblo Ordnance Depot has asked for a more extensive appraisal <br />of the water supply. The project will involve test drilling to <br />determine where water is most readily available. A similar project <br />is nearing completion in the vicinity of Rocky Mountain National <br />Park Headquarters. The Headquarters is in need of an increased <br />water supply particularly during the summer months. <br /> <br />Of particular significance is the development of a new technique <br />for estimating the effects of well withdrawals on the depletion of <br />streamflow. The method was developed by one of our senior engineers, <br />Mr. Clifford T. Jenkins. It will permit the ready computation of <br />the effects of any well or group of wells on the depletion of the <br />rate of flow or volume of flow in streams such as the Arkansas <br />River valley. Our next step is to prepare a map for the Arkansas <br />Valley which will facilitate the application of this method in that <br />area. Mr. Jenkins' new technique is the subject of a journal article <br />for the National Water Well Association and will be available to <br />the general public within a few months. <br /> <br />. <br />1179 <br /> <br />2 <br />