AWWA ACE63069

The town of Exeter, New Hampshire's Kingston Road booster pumping station was hard-pressed to meet its existing needs, much less the demands of a proposed new 142-unit retirement community. The town found the proposed development to be the final straw in pushing peak demands beyond the capacity of the 265-gallon-per-minute (gpm) station, but in the end was provided a modernized station of sufficient capacity, free of charge, pumping more flow with less electrical consumption. In accordance with its policy, the town required the developer to pay for all review, design engineering, and physical improvements to the station. At the town's request, CDM modeled the water distribution system to evaluate the impacts to the suction side of the booster pumping station. While the analysis revealed that increasing the pump station capacity from 265 to 350 gpm would have a negligible impact (less than 1 psi) on system pressures on the suction side of the pump station, the facility lacked the firm capacity needed to pump this flow with one pump out of service. A review of the affected wastewater collection and pumping systems was also performed, although the sewerage system is beyond the scope of this paper. Includes figures.