HLA Engineering and Land Surveying, Inc. - Grandview Main Sewage Lift Station Upgrades

Grandview Main Sewage Lift Station Upgrades

The City of Grandview’s Main River (Euclid) Lift Station was originally constructed in the 1950’s and is a wetwell/drywell configuration lift station.  All wastewater from the City of Grandview flows to the Euclid Lift Station to be pumped across the Yakima River to the City’s Wastewater Treatment Plant.  The lift station has undergone several upgrades, including the addition of a backup engine-driven pump, headworks structure, and 100,000-gallon capacity emergency storage basin in 2000, which addressed redundancy and reliability concerns.  In 2014, as part of the Wastewater Pumping Facility Improvements, the main lift pump components of the lift station were improved with replacement of the existing pumps and piping, expansion of the existing drywell structure, and construction of a new “self-cleaning” trench-type wetwell, improving pump performance, maintenance access, and worker safety; correcting pump and piping system failures; and addressing hazardous and corrosive gas issues.

The primary clarifier sludge pumping facility was originally constructed in 1967 at the same time as the City’s pretreatment plant.  The below-grade pump station was replaced as part of this project, with a new above-ground facility that included space for the addition of a future primary clarifier pump.  These improvements provided a better working space and conditions for maintenance of equipment.  The improvements also included the addition of a grinder ahead of the new rotary-lobe positive displacement pumps for improved pump protection.

Sources of Project Funding:

  • USDA Loan
Total Project Cost: $3,472,455

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