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<br />e <br /> <br />. <br /> <br />Memorandum <br />August 15, 1995 <br />Page Two <br /> <br />is stored in Gurley Reservoir which has a capacity of about 11,000 acre-feet. The average <br />annual yield of the FWDC system, including both storage and early season flow through the <br />reservoir, is about 24,000 acre-feet per year. By comparison, total annual municipal water use <br />for the Norwood-Wright's Mesa area amounts to less than 180 acre-feet per year. <br /> <br />At present there are some problems in distinguishing Norwood's surface rights from Gurley <br />Reservoir releases in the Gurley Ditch during the irrigation season. In addition, there is a lack <br />of long-term records for Norwood's use of its decreed municipal rights. A portion of the <br />proceeds from a Construction Fund loan would be used to establish a flow measurement and <br />recording program to assist in resolving this problem. <br /> <br />Based on limited available data, WestWater Engineering derived an estimate of water rights <br />yields as of March 1995 in Table IV -G of the feasibility report (copy attached). The table <br />indicates that for both municipal rights as well as Norwood's shares in the FWDC, the <br />average year yield would amount to 429 acre-feet and the firm, or dry-year, yield would be <br />206 acre-feet. <br /> <br />As documented in my memorandum to the Board of July 17, 1995, Norwood has acquired an <br />additional 50 shares in the FWDC. The new shares should increase the firm yield by about <br />50 acre-feet to a total of 256 acre-feet assuming the same minimum yield of one acre-foot <br />per share as in Table IV -G of the feasibility report <br /> <br />Prooosed Proiect <br /> <br />The proposed project consists of a new raw water reservoir with a capacity of about 100 acre- <br />feet. The purpose of the reservoir is to store water during the summer or fall for use in the <br />winter months when, according to the bylaws of the FWDC, water cannot be released from <br />Gurley Reservoir. <br /> <br />The feasibility study indicates that the average water use in the Norwood service area for the <br />period October 1988 to July 1991 was about 167 acre-feet per year. Average water use is <br />projected to increase to about 400 acre-feet per year at the end of the next 40 years. At that <br />time, it is estimated that Norwood would be using about 250 acre-feet per year from the <br />FWDC system. <br /> <br />Annual supply appears to exceed average annual demands at the present time (256 acre-feet <br />vs. 167 acre-feet). The problem, however, is in the distribution of annual supplies. <br />Norwood's municipal surface and sub-surface rights are inadequate to provide a full supply in <br />the winter months while in the summer months there is an excess of water available from the <br />combination of municipal rights and Norwood's shares in the FWDC released from Gurley <br />Reservoir. <br />