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              Armstrong Wastewater Reclamation Plant Upgrade

               

              Armstrong Wastewater Reclamation Plant Upgrade

               

              Armstrong Wastewater Reclamation Plant Upgrade

               

              Armstrong Wastewater Reclamation Plant Upgrade

               

              Armstrong Wastewater Reclamation Plant Upgrade

               

              Armstrong Wastewater Reclamation Plant Upgrade

               

              Armstrong Wastewater Reclamation Plant Upgrade

               

              Armstrong Wastewater Reclamation Plant Upgrade

               

               

              Armstrong Wastewater Reclamation Plant Upgrade
              Marietta, Pennsylvania

              Contract: $1,650,000

              Design-Build Team Members
              Owner: Armstrong World Industries, Inc.
              Engineer: US Filter Engineering & Construction, Inc.
              Design-Build General Contractor: US Filter Engineering & Construction, Inc.

              Design-Build Subcontractor: Johnston Construction Company

              Key Accomplishments:

              • Acceptance of Johnston’s alternate design concept for concrete tanks in lieu of steel at a cost savings of $30,000.
              • Fabricated and painted steel piping in a job-built shelter in the winter before installation to accelerate completion.
              • Used hot water from nearby wastewater treatment plant processes using a series of hoses to keep curing concrete warm during cold weather installations.

              Project Description:

              Johnston combined forces with US Filter and worked the project as a design-build team providing a fixed price in the proposal stage. US Filter entered into a negotiated fixed price contract of about $4 million for the 500,000 gallon per day wastewater recycling plant. Johnston Construction had a subcontract of $1.65 million with US Filter.

              The facility is a wastewater recycling plant located in Marietta, PA. It was designed and constructed to recycle process water from a ceiling tile manufacturing plant. It is designed as a zero discharge system with provision to discharge to the township sewer in an emergency.

              Tankage included a 131' diameter, 20' high concrete tank divided into an equalization basin, clarifier, extended aeration tank and a water storage tank. It also included a pump & blower metal building by Parkline, modifications to the existing pumping station, various chemical feed systems and interconnecting piping. Other system installations included: Davco clarifier and coarse bubble diffusers, three 250 HP Hoffman blowers, two 9.3 HP Goulds horizontal centrifugal sludge transfer recycling pumps, two 25 HP Goulds horizontal centrifugal effluent pumps, a one HP Goulds submersible pump, and two 20 HP Nagle centrifugal equalization transfer pumps.

              The project was implemented as a fast tracked project, with Johnston beginning construction at the 60% design point.

              The project was completed on schedule despite a difficult winter of concrete work.

               

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