Woods Trailer and RV Park

Woods Trailer & RV Park|Lebanon, OR|72 GPM - 28' TDH

jweddell50gpm - 100gpm, Mixed Use Development, Pacific, Resorts/ Golf Courses, Wastewater

An RV park needed this package lift station to meet the municipal sewage requirements for the residents at the park. Pumping with low flow and low head conditions, the duplex Goulds submersible pumps are sized to efficiently fit the 14’ deep, 4’ diameter wet well. An outdoor UL listed control panel utilizes floats for liquid level-sensing and includes an autodialer for communications and alarm notifications. The complete system was installed at finish grade with traffic rated hatches to provide a low profile for the residential area.

San Andreas Sanitary District California

San Andreas Sanitary District | San Andreas, CA | 75 GPM - 28' TDH

jweddell50gpm - 100gpm, Pacific, Schools, Wastewater

A new school needed this package lift station to pump stored wastewater every 24 hours. The sump was oversized by design to hold in excess of 5,000 gallons of sewage that would be pumped out at specified medium pumping rate to a low-level shutoff float control. The submersible solids handling pumps in a duplex configuration are accessible by a crane installed on the top slab. An outdoor UL listed control panel is tied-in to an onsite generator for backup power and utilizes an autodialer for communications.

Pacific Gas and Electric Company

PG&E Power Plant|Colusa, CA|300 GPM - 23' TDH

jweddell300gpm - 500gpm, Equipment Washdown, Industrial, Industrial Water, Pacific, Power Generation, Stormwater, Stormwater Runoff, Wastewater

These three package lift stations were designed to meet medium flows of industrial process water with added low flows of industrial stormwater and wastewater. Submersible centrifugal pumps in a duplex configuration were specified to meet the peak flows and water chemistry identified for each pump station. UL listed control panels with floats for liquid level-sensing and basic alarms comprise the system controls for the lift stations. These packaged lift stations were integrated into stormwater, processing, and wastewater plans for the new construction of the Colusa Generating Station.

Sammamish Plateau Water

Pacific Properties | Sammamish, WA | 85 GPM - 75' TDH

jweddell50gpm - 100gpm, Meter Vaults, Municipal Collection, Now & Future Expansions, Pacific, Residential Development, Sewer System Expansion, Urban Growth, Wastewater

This medium flow sewage lift station was designed for a new development to meet the Sammamish Plateau Water and Sewer District lift station design standards. These standards specify a PLC controller with touchscreen HMI, SCADA options, a precast concrete valve vault, wet well, meter vault, and duplex submersible pumps. In addition to these design standards, this lift station needed to tie-in to an existing force main owned by the District. Romtec Utilities provided the tie-in force main designs and calculations as well as VFDs (variable frequency drives) to match the changing flow and pressure conditions of the existing force main.

Husky Stadium

University of Washington|Seattle, WA|346 GPM - 40' TDH

jweddell300gpm - 500gpm, Grinder Vault, Municipal Collection, Pacific, Schools, Sewer System Expansion, Slurry/Gritty Water, Valve Vaults, Wastewater, Wastewater Featured

The renovation of the University of Washington’s Husky Stadium required a new lift station to handle medium flows of wastewater. Robust, 10hp Vaughan Chopper pumps were used in a duplex configuration to macerate solids and to pump under unpredictable conditions. The lift station, valve vault, and the access hatches were designed as traffic rated to accommodate loading/unloading next to the main grandstand. The UL listed control panel starts, stops, and alternates each pump cycle at levels measured by Noltaniva float sensors.