Sutter Medical Center|Santa Rosa, CA|90 GPM - 25.1' TDH

jweddell50gpm - 100gpm, Hospitals, Odor Control, Pacific, Wastewater

The construction of this new hospital required a package lift station system to handle medium flows of wastewater. This comprehensive system includes five below-grade vaults. Four concrete vaults comprise the valve vault, metering vault, odor control vault, and wet well. Additionally, an 18,000 gallon fiberglass vault was included as an overflow tank for emergency backup storage. Tsurumi cutter pumps in a duplex configuration start and stop pumping cycles on level with primary and backup float controls. The outdoor UL listed control panel controls the total operation of the system valves, meters, sensors, pumps, and additional electrical.

Public Animal Shelter|Berkeley, CA|75 GPM - 25' TDH

jweddell50gpm - 100gpm, Hospitals, Pacific, Wastewater

A newly constructed public animal shelter required this package lift station to meet low sewage flows with additional animal waste. The difficulties associated with pumping animal waste required submersible solids-handling pumps in a duplex configuration. Variable frequency drives were included for electric phase conversion in order to utilize the appropriate pumps with the available power. A UL listed control panel includes float controls for liquid level-sensing and an autodialer with a basic alarm for emergency notifications.

Lake Union Park in Seattle Washington

Seattle Parks and Recreation|Seattle, WA|145 GPM - 20.8' TDH

jweddell100gpm - 300gpm, Municipal Collection, Pacific, Wastewater

A renovation of South Lake Union Park required a package lift station configured to meet the medium sewage flow requirements for a municipal and commercial wastewater system. Submersible solids handling pumps in a duplex configuration are protected from turbulence and cascading influent by a drop bowl. A separate below-grade valve vault holds the valves, gauges, indicators, and actuators. A UL listed control panel utilizes float controls for primary and backup liquid level-sensing and is housed in a nearby control building.

St. Helena Napa Valley's Main Street

The City of St. Helena|St. Helena, CA|254 GPM - 49.5' TDH

jweddell100gpm - 300gpm, Municipal Collection, Pacific, Sewer System Expansion, Wastewater

This municipal lift station in the Napa Valley was designed to handle medium sewage flows and medium head conditions. Flygt sewer pumps were supplied in a duplex configuration to integrate with the Tops Basin and discharge elbows. The complete structural components of this lift station were designed to finish two feet above-grade to be above the flood plain for the area. A proprietary control device and pressure transducer provide the system electrical controls.

Home Depot|Perris, CA|900 GPM - 16' TDH

jweddell500gpm - 1,000gpm, Detention Pond Pumping, Detention Ponds, Pacific, Parking Lot Drainage, Stormwater, Stormwater Runoff, Warehouse/Fulfillment Centers

The construction of a new Home Depot required a large detention pond and a new pump station to handle stormwater from the commercial development. This economical pump station uses 7.5hp Ebara pumps in a duplex configuration to meet the required flow rates to empty the detention pond. Parallel force mains were included with valve cans to provide simple and inexpensive piping and control valves. This submersible system uses cost-effective precast concrete barrels and a monolithic base to construct strong and reliable sump.