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Bell Gardens outlines operation, maintenance concerns for new subsurface cistern at Ford Park
Summary
City staff updated the council on the John Hansen Ford Park infiltration system: a 21.5-acre-foot underground cistern that diverts dry-weather flows to reduce bacteria and metals reaching the LA River and to recharge the Central Basin; staff flagged sediment accumulation, instrumentation calibration problems, and an estimated initial O&M of $100,000.
City staff and project consultants presented an update on the John Hansen Ford Park infiltration system on Jan. 12, describing the constructed subsurface storage and infiltration system, early operational experience and maintenance needs.
Public Works Director Bernie Aniguez and project consultant/designer Desi Alvarez described the facility as a 21.5 acre-foot (roughly 7 million gallons) buried infiltration basin composed of stacked precast concrete galleries placed beneath the ball fields at John Hansen Ford Park. "It's a 21 and a half acre foot retention and infiltration basin that's buried under the ball fields," Alvarez said, walking the council through the main components: a diversion slot in the storm drain, a gate valve and splitter, two large hydrodynamic separators for pretreatment, and a precast cistern where the water infiltrates to…
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