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I I I I I I I I I I I I I I I I I I I CHAPTER IV PLAN OF DEVELOPMENT Physical Plan Existing - The existing physical plan is shown in Figure 3. It con- sists of 10,640 feet of 2-inch pipe, 2,510 feet of 4-inch pipe, 6,840 feet of 6-inch pipe, 600 feet of 12-inch pipe, 18 fire hydrants, and approximately 53 line valves. Over 52 percent of the distribution lines are 2-inch pipe. The 2-inch lines are quite old and are the reason behind most maintenance and replacement costs. Through our network analysis and fire hydrant tests done by the Bancroft Fire District it can be seen that the present distribution system does not provide adequate fire protection. Fire hydrant inspections done in August, 1978, are shown in Table 10. Not all hydrants in the Kelton Heights Water District were inspected. To provide adequate fire protection and domestic requirements the pre- sent system needs all 2-inch lines replaced with minimum 6-inch lines and adequate looping. Proposed - The proposed prOject is shown in Figure 4. It consists of 8,770 feet of 6-inch line, 2,100 feet of 8-inch line, and 6 new fire hydrants. The proposed system replaces all 2-inch line with a minimum of 6-inch line. Additional looping for fire flow is provided by extension of existing mains in S. Eaton Street and S. Ames Street; and new line on W. Mississippi and W. Ohio Avenue. Also shown on the proposed facilities plan is an 8-inch line con- necting to the 30-inch DWD conduit at W. Ohio Avenue and Sheridan Boulevard extending to the 6-inch line at W. Ohio Avenue and the existing easement, which is proposed by others. This line will pro- vide additional pressure and supply from the 30-inch conduit. The proposed system provides for adequate supply rates to meet both domestic requirements and a minimum fire flow of 1,000 gpm at a minimum residual pressure of 20 psi. 17