Dow Chemical Company

Dow Chemical Company|Plaquemine, LA|350 GPM - 90' TDH

jweddell50gpm - 100gpm, Central, Oil & Gas, Wastewater

This package wastewater lift station replacement was delivered largely preassembled for quick and simple installation by the customer. This procedure provided an expertly designed lift station that would uphold the privacy values of the facility. The fiberglass wet well arrived with mounting hardware, discharge piping, and the valve assembly preinstalled. Only the duplex solids handling pumps needed to be lowered after installation of the sump. An outdoor UL listed control panel was designed with float controls for liquid level-sensing and included an autodialer for communications.

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.

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.