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<br />OthCI" valves which would be necessa."y for the cfficient opCl'ation of the NCDWA <br /> <br />system include manual blowoff valves and manual air release valves. These <br /> <br /> <br />valves would assist in dt'aining and filling-the t."ansmission line. The use of <br /> <br />pressure rel ief valves is advised in conjunct ion with each pl-essul'e .'educing <br /> <br />valve.- Relief valves would p,"ovide pt"otection against excessive line pressures <br /> <br />should a PRV malfunction. <br /> <br />The hydraulic calculations fOl" the p."oposed system are given in Table 1. <br />Exhibit 1, which follows Table 1, is a map of the se."vice area including pipe <br />sizes and apPl'oximate locat ions. The maximum day dem~nd in the year 2000 is <br />given at each member's service point on Exhibit 1. An initial const."uction <br />cost estimate fo.' the system shown on Exhibit 1 is given in Table 2. <br /> <br />18 <br /> <br />. <br />. , <br />