Major Expansion for LeSourdsville Water Reclamation Facility

Hazen and Sawyer Designing Phased Improvements for Butler County

LeSourdsville Water Reclamation Facility

(Cincinnati, OH – October 29, 2009) – Hazen and Sawyer was recently awarded a design contract for the Phase 2 Improvements to the LeSourdsville Water Reclamation Facility (WRF) by Butler County Water and Sewer Department (BCWS). Butler County is located in Southwest Ohio and is one of the fastest growing areas in the Cincinnati metro area.

In 2007, Hazen and Sawyer completed a Facility Master Plan for the LeSourdsville WRF. The Master Plan included plans for upgrade and expansion of the facility to increase its dry and wet weather capacities in three phases, along with the inclusion of measures to facilitate its compliance with anticipated future changes in regulatory limits.

Hazen and Sawyer recently completed design of the Phase 1 Improvements, which included operability and reliability improvements, including a new septage receiving facility, vactor unloading area, additional dewatering centrifuge, sludge pumping improvements, demolition of the existing RBC train, and improvements to the effluent aeration facility. These improvements are currently under construction.

The Phase 2 Improvements will include expansion of the rated annual average capacity of the plant from 12 million gallons per day (mgd) to 15 mgd, and will increase wet weather hydraulic capacity from 32 to 70 mgd. Improvements include:

  • New influent pump station
  • New preliminary treatment facility with fine screening and grit removal
  • New aeration basins with fine bubble aeration
  • New blower building
  • Replacement of existing secondary clarifier mechanisms in three existing clarifiers
  • Upgrades to existing RAS/WAS pump station
  • Construction of one new secondary clarifier and new second RAS/WAS pump station
  • Conversion of existing oxidation ditch to flow equalization storage
  • New 3MW generator and power distribution equipment

The design is being carried out in two steps. The first phase includes the new biological treatment system and the generators /power feed facilities. These improvements are being designed on an accelerated schedule (by December 2009) to allow regulatory approval prior to implementation of proposed new regulations that would cost BCWS up to $6M in additional improvements. The second phase includes the remainder of the improvements and will be completed in 2010.

Since our founding in 1951, Hazen and Sawyer has focused on two things: providing safe drinking water and controlling water pollution. Our range of services encompasses the planning, design, and construction management of water and wastewater-related projects – from clean water treatment, storage, and distribution to wastewater and stormwater collection, treatment, and reuse.

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