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.

Assembling of the Concrete Wet Well in a Large Hole

Commercial Development | Newark, DE | 60 GPM - 16' TDH

jweddell50gpm - 100gpm, Apartment Complexes, Eastern, Wastewater

A commercial development in Delaware required this wastewater lift station to handle low flows of sewage from a new fast food restaurant and retail stores. Tsurumi cutter pumps in a duplex configuration macerate solids any in the wastewater to pass through the force main diameter. This lift station pumps a short distance with low head to a nearby gravity collection system that flows to treatment. A UL listed control panel was supplied for complete electrical controls with Nolta Niva floats for in-well liquid level-sensing.

Union Pacific Railroad|Cheyenne, WY|100 GPM - 22' TDH

jweddell50gpm - 100gpm, Collection Systems, Equipment Washdown, Mountain, Oil/Water Separators, Railyards, Replacements & Retrofits, Stormwater Runoff, Wastewater

The Union Pacific Depot in Cheyenne, Wyoming needed two new sewer lift stations to replace its existing sewer collection system. Each lift station included three precast concrete vault structures, a wet well, valve vault, and metering vault. Both systems use 2 hp Ebara Vortex® sewage pumps in duplex configurations that are explosions proof rated for Class I, Division I locations. The valve assemblies comprise Val-Matic Cam-Centric® plug valves and Swing-Flex® check valves with pressure gauges. Endress and Hauser PROline® electromagnetic flow meters measure the sewage flows for both lift stations. These in-ground valve and meter assemblies were fitted with heat tracing to provide reliable frost protection with Raychem and Digitrace components.

City of Clovis New Mexico

The City of Clovis | Clovis, NM | 100 GPM - 15.4' TDH

jweddell50gpm - 100gpm, Mountain, Municipal Collection, Sewer System Expansion, Wastewater

An expanding sewer system for annexed land required this packaged wastewater lift station. Duplex submersible solids handling pumps are designed to meet the medium flow requirements and pass solids up to a 2” diameter. To save space, the system valves are integrated into the discharge piping in the sump. An outdoor control panel utilizes floats for liquid level-sensing and an intrinsically safe barrier for in-well electrical components. The electrical controls are wall mounted.

Geothermal Power Facility in Nicaragua

Geothermal Power Plant|San Jacinto, Nicaragua|100 GPM - 24.9' TDH

jweddell50gpm - 100gpm, Power Generation, Wastewater

A commercially owned geothermal power facility in Nicaragua purchased this package lift station to meet its medium wastewater flows. Shipping the major components for this system required precise documentation and plans. Duplex submersible chopper pumps, in-well check valves, and plug valves with valve cans are some of the major below grade components of this system. The outdoor UL listed control panel utilizes floats for liquid level-sensing and includes an autodialer for communication. The complete Romtec Utilities package system was owner-installed as part of its phase I development.