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3. EXISTING WASTEWATER FACILITIES <br /> <br />Subsequent upgrades to the original facilities and the addition of new facilities have been <br />completed since the initial facilities were put into operation. Table 3.1.3-2 summarizes the <br />major construction contracts associated with facility upgrades and additions. The end result <br />of these construction projects is the facility as it stands today. <br /> <br />TABLE 3.1.3-2 <br />Conveyance Pump Station Upgrades <br />MWMC Facilities Plan, Eugene-Springfield <br /> <br /> Construction Project Year Description <br /> <br />Fillmore Pump Station Improvements 1996 Serves area west of central downtown Eugene. Updated <br /> station with five submersible pumps and variable speed <br /> controls <br /> <br />West Irwin Pump Station 1998 Updated pump station with new pumps and drives <br />Improvements <br /> <br />Barger-Greenhill Pump Station 1999 Serves southwestern Eugene, along with the Terry Street <br /> pump station. Pumps raw sewage from 1725 Legacy Street <br /> to the Terry Street force main. <br /> <br />Division Street Pump Station 2001 Upgraded and replaced control panel <br /> <br />Oakway Pump Station 2002 Constructed new pump station with three pumps and variable <br /> speed controls <br /> <br />Division Street Pump Station 2001 Upgraded and replaced control panel <br /> <br />3.1.4 Conveyance System Pump Stations <br />In all there are 47 pump stations throughout Eugene and Springfield that contribute flow to <br />the WPCF. Figure 3.1.4-1 shows the locations of the major wastewater collection system <br />pipelines and pump stations. Inflows to the WPCF consist of three components. The first is <br />the West Bank Interceptor (WBI), a 72-inch-diameter gravity pipeline (herein called the <br />Gravity System). This component is capable of delivering a flow of 100 mgd to the screw <br />pumps at the WPCF. The second component is a pump station/force main system from the <br />east side of the Willamette River (East Side Pump Station System). This system consists of <br />the Willakenzie pump station and force mains. The final inflow component is a system of <br />pump stations and force mains conveying flows to the WPCF from the west (West Eugene <br />Pump Stations System). <br /> <br />MWMC_3.0_REV11.DOC 3-3 <br /> <br /> <br />