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<br /> <br /> <br />City of Pleasanton, CA (0012108.00) 1-6 Woodard & Curran, Inc. <br />Pleasanton Long-Term Sewer CIP October 6, 2025 <br />TABLE 1-4: SEWER SIPHONS <br />Siphon Location Construction <br />Date <br />Number of <br />Siphon <br />Barrels <br />Length <br />Linear Feet1 <br />Size Pipe <br />Material Inches <br />S-5 Laguna Vista <br />Siphon 1988 1 600 10 VCP <br />S-8 Siphon 1968 1 440 14 MJCIP <br />Meadowlark Siphon 2018 2 1410 8 PVC <br />Highland Oaks <br />Siphon 1965 2 300 10, 14 CIP <br />Amberwood Siphon 1986 2 350 8 DIP <br />Nobhill Siphon 1966 2 400 8 DIP <br />Laguna Creek <br />Siphon 2002 2 620 8 DIP <br />West Las Positas <br />Siphon 1968 2 500 15 VCP <br />Total, Linear Feet: 4620 <br />Total, Miles: 0.875 <br />1. Total length of siphon pipes for multiple-barrel siphons <br />1.3.2 Sewer Lift Stations <br />The City of Pleasanton owns and operates eleven (11) sewer lift stations throughout its wastewater <br />collection system. The collection system discharges to the Dublin San Ramon Services District Wastewater <br />Treatment Plant (DSRSD WWTP). Figure 1-2 below displays the location of the 11 wastewater lift stations <br />in relation to the DSRSD WWTF. <br />While the oldest station was installed in 1968, the stations were primarily constructed in the 1980s and early <br />2000s, and several stations have also been more recently upgraded. The lift stations have two general <br />configurations: three (3) are dry-pit stations and the remaining eight (8) are wet pit stations with submersible <br />pumps. The sizes of the pumps varies from 2 to 60 horsepower (HP) and total station capacity ranges <br />between 0.4 MGD and 7.6 MGD. A summary of lift station installation dates, size, firm capacity, and standby <br />generator size is included in Table 1-5. Table 1-6 includes information on the force mains to which each <br />lift station discharges. <br />In addition to the City’s lift stations, the East Amador Lift Station (EALS), which is owned and operated by <br />DSRSD, conveys flow from the City of Pleasanton to the DSRSD WWTF. Although DSRSD is responsible for <br />the condition assessment and implementation of improvements needed to this lift station, the City is <br />responsible for funding these improvements. An allocation for those costs has been included in the long - <br />term CIP. EALS is not listed in Tables 5 and 6 since it is not owned by the City of Pleasanton. <br /> <br />Page 216 of 323