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Page 3 Community Development October 3, 1988 pump valves were closing. This situation is much the same as the problem reported in the 1975 water system report. These pressure tests indicate that, due to operational problems with the current water system, low pressures may still result in the area of Western Avenue and Lovell. These low pressure situations do provide periodic inconveniences to existing residences in the neighborhood. This situation has been reported to the Public Works Department and has been verified by the field tests. POSSIBLE SOLUTIONS In order to prov__.e a more stable system pressure, it is suggested that in conjunction with the development of the Concordia site, additional watermain loops be constructed. Currently, the existing watermain system in the area consists of a 16 inch main running east and west on.County Road B-2 from Dale to Western, an eight inch main on Minnesota which dead -ends near the east property line of the proposed Concordia site, and an eight inch watermain on Dale which runs north and south between Cope and Lovell. It is suggested that the existing system be looped in conjunction with the project by extending a watermain connection to the existing eight inch line on Dale running in an east and west direction through the projec�. Also, a north/south connection to the existing 16 inch main on County Road B-2 should be provided. The dead-end main on Minnesota should be extended and connected to this internal system. Also, it is desirable, if possible, to provide watermain loops for the dead-end lines on the cul-de-sacs on Grandview and Lovell. This loop watermain system will provide watermain strengthening which will lessen the impact of pump operation on the water system. The looping of these mains should provide a more stable system and pressure fluctuations will not be as severe. Also, the looped system will provide a second source of water supply for the area and will enhance water quality and improve resident's safety, because the water system will have feed points from two directions instead of a single dead-end line. It should be noted, however, that this watermain looping will not eliminate the pressure fluctuation situation. However, the watermain loop will strengthen the system and insure that the new development will not compound the existing pressure fluctuation problems. That is, after the development is completed and the suggested watermain loops installed, the pressure problem should be no worse than it is in the present situation. Also, we have discussed with the consultant other ways to improve the pressure situation in the area. These possible solutions will be discussed briefly along with a preliminary estimate of cost as follows: