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<br />I <br />I <br />I <br />I <br />I <br />I, <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I, <br /> <br />As a result of these obstacles, the District has been forced to operate under substitute <br />supply plans for the past several years just to meet its existing demand. A functional <br />Robbins Reservoir is essential to solving the District's current problems and meeting <br />future demand. It will allow capture of spring runoff in the Beaver Creek drainage as <br />well as storage of Mesa Creek water by exchange, thereby providing a reliable, <br />deliverable source of augmentation water, and allow the District to implement its <br />augmentation plans. It will also provide the regulatory function needed to moderate <br />streamflow fluctuations for the benefit of downstream users during the winter. <br /> <br />Exhibit B includes a copy of a yield analysis for Robbins Reservoir by Resource <br />Engineering, Inc. dated January 10, 1997. The report is on the yield that can be expected <br />from Robbins Reservoir based upon a 50 AF active storage capacity and the water rights <br />currently in place or pending (judicial approval of the exchange of Mesa Lakes water into <br />Robbins is pending, but there are no substantial obstacles to its approval). The report <br />concludes that a yield of a minimum of 100 AF annually will be available, and as much <br />as 200 AF under appropriate conditions. <br /> <br />VI. Field Investigations <br /> <br />Photographs were taken of the site and are included in Exhibit D showing the present <br />condition of the dam and site area. Field investigations were made on the existing <br />reservoir site and dam. Exhibit D includes a topography map for the dam and the <br />reservoir site area. <br /> <br />The field investigation shows that the dam and reservoir site are located in a natural <br />depression area well suited for a dam and reservoir. The natural terrain narrows down <br />to minimize the length of the dam required for storage of water as proposed. <br /> <br />Soils samples were taken as shown in the preliminary soils report included in Exhibit D. <br />The material is classified as a lean clay with varying amounts of sand and gravel. The <br />permeability value indicates the soil is very impervious to moisture penetration and is <br />suitable for dam fill. The soil analysis indicates that local materials can be used for <br />embankment for the dam construction. Most of the rip rap for the dam face will be <br /> <br />9 <br />