DESIGN-BUILD REPLACEMENT OF ON-SITE SODIUM HYPOCHLORITE GENERATION SYSTEM INCLUDING NEW CLORTEC CT-300 SYSTEM, REMOVAL OF OBSOLETE CT-200 SYSTEM, TRANSFER PUMPS, CHEMICAL PIPING, HVAC UPGRADES, ELECTRICAL WORK, INSTRUMENTATION.
Johnston Construction Company
- Johnston Construction Company performed design-build construction services for the VWPA Sixth St. WTP Hypo Generation Project in Susquehanna Township, Dauphin County, Pennsylvania.
- The project included design and installation of a new on-site sodium hypochlorite generation system and removal of the existing obsolete on-site hypo generation system at Veolia Water Pennsylvania’s Sixth Street Water Treatment Plant.
- JCC contracted directly with Veolia Water Pennsylvania, Inc. under Task Order Agreement No. 16265, with Johnston Construction Company identified as the Contractor.
- The Sixth Street Water Treatment Plant is a 12 MGD water treatment facility consisting of pretreatment, filtration, and disinfection processes, serving customers across portions of Dauphin, Perry, and Cumberland Counties.
- The project included replacement of the obsolete ClorTec Model CT-200 backup hypo generation system with a new ClorTec Model CT-300 on-site sodium hypochlorite generation system.
Electrical Services Division
- Electrical Services Division, LLC performed electrical construction work for the VWPA Sixth St. WTP Hypo Generation Project in Harrisburg, Pennsylvania.
- The project included design and installation of a new on-site sodium hypochlorite generation system and removal of the existing obsolete on-site hypo generation system at Veolia Water Pennsylvania’s Sixth Street Water Treatment Plant.
- ESD performed its work under subcontract to Johnston Construction Company for the electrical work associated with the Veolia Sodium Hypochlorite Generation System, Susquehanna Township Project No. C24b502.
- ESD’s scope included conduit, wire, connections, demolition / relocation of existing equipment on the mezzanine, temporary hypo system wiring, NEMA 4X PVC panels for equipment if required, miscellaneous breakers, instrumentation support, testing, startup, and closeout.
- The electrical work was based on De Nora Drawings 1 through 6, Addenda 1 and 2, BRE / ESD proposal from Ron Owens dated April 9, 2024, and the BRE / ESD control estimate.
Additional project details
- JCC replaced an aging on-site sodium hypochlorite generation system to improve reliability and simplify maintenance at Veolia’s Sixth Street Water Treatment Plant.
- The work combined process equipment replacement with chemical piping, building, electrical, and controls improvements.