Zone 9
Area: 2,482 acres
Natural Creeks: < 1 mile
Earth Channels: 1 mile
Concrete Channels: 2 miles
Underground Pipes: 14 miles
Improved Creeks: < 1 mile
San Leandro (partial)
Belvedere
Pump Station D1
Pump Station F
Pump Station H
Featured Projects
Maintaining and Improving Pump Stations
Location: San Leandro
Anticipated Completion: Ongoing
Pump stations reduce flooding by moving stormwater from underground pipes to a higher elevation so it can flow by gravity toward San Francisco Bay. However, much of the equipment in Zone 9 is very old and near the end of its service life. In 2019, the District assessed several aging pump stations in Zone 9 to identify needed repairs and upgrades. In 2024, District engineers replaced a generator at Pump Station H to improve reliability during power outages.
Because the proposed benefit assessment increase was not approved in June 2025, the identified pump station deficiencies will need to be deferred. The District will continue to prioritize its limited one revenue toward urgent and critical equipment repairs as needed.
Urgent Pump Station (F-1) Intake Pipe Repair
Location: San Leandro
Year Completed: 2023
In December 2022, a small sinkhole was observed above the F-1 pump station intake pipe. Further investigation revealed that a section of the corrugated metal intake pipe, located just outside the pump station sump, had collapsed and required replacement. The repair work included excavation and trenching; salvaging and reusing suitable excavated material as backfill; removal and disposal of the damaged 42-inch corrugated metal pipe; and installation of a 42-inch Class III reinforced concrete pipe to restore full pump station functionality.
Urgent Pump Station Engine 3 Rehabilitation
Location: San Leandro
Year Completed: 2017
The project rehabilitated Pump Unit No. 3 at the Line F-1 Pump Station. Work included removing and disassembling the pump unit, associated piping, and equipment; transporting components; fully disassembling and coordinating with District staff for inspection and identification of deficiencies; performing necessary repairs to restore design tolerances; replacing the damaged motor-to-pump shaft coupling; removing and refabricating the pump shafts; reassembling and testing the unit; performing site cleanup; and completing standard maintenance on the pump system, along with all miscellaneous work required to complete the overhaul of Pump Unit No. 3.