City of Wenatchee in Washington

The City of Wenatchee|Wenatchee, WA|375 GPM - 125' TDH

jweddell300gpm - 500gpm, Municipal Collection, Municipal Lift Station Replacement, Pacific, Replacements & Retrofits, Wastewater

This municipal lift station replacement was configured to handle medium flows of sewage from a large area of Wenatchee, Washington. This deep wet well was constructed from precast concrete and includes Tnemec interior coating. Vaughan Chopper Pumps in a duplex configuration were selected to macerate solids and alternate pumping cycles. A PLC with a touchscreen interface provides an easy and flexible control panel. The primary level-sensing device is a pressure transducer with floats backup level-sensing. This control panel also uses soft starters to reduce current inrush to the 30 hp pumps.

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.

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.

Tesoro Oil and Water Separator Pump

Tesoro Corporation|Port Angeles, WA|400 GPM - 30' TDH

jweddell300gpm - 500gpm, Industrial, Industrial Water, Oil & Gas, Oil/Water Separators, Pacific, Stormwater, Stormwater Runoff

A remote Tesoro Corporation industrial site needed this stormwater pump station to handle water discharged from an oil/water separator which processes on-site runoff. Submersible centrifugal pumps were used in a duplex configuration in this shallow wet well. The 7.5 hp Ebara explosion-proof pumps were sized to meet low flow, medium head conditions for stormwater. Check valves and plug valves were integrated into the discharge piping in the well for a simple and cost-effective design. The precast concrete wet well and the access hatch are both pedestrian rated.

City of Shafter in California

The City of Shafter|Shafter, CA|400 GPM - 28.5' TDH

jweddell300gpm - 500gpm, Pacific, Replacements & Retrofits, Wastewater

A suburb of the City of Shafter required a lift station package to repair and rehabilitate an existing wastewater sump. Duplex submersible centrifugal pumps and discharge pipe mounting brackets were fitted to a concrete slab poured in the bottom of the existing manhole. The Romtec Utilities package included the proper components to operate in this 26-foot-deep sump. An outdoor MultiSmart control panel utilizes conductive probes for primary and backup level controls and an autodialer for communications. This retrofit package saved about 60% the cost of a new lift station.