DELTA WASTEWATER TREATMENT PLANT UPGRADES

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1 Delta, Ohio Environmental and Electrical Engineering, Grant Administration Cost $2.6 million $3.2 million OWDA Loan 1,100 SF Admin Building Addition MGD Average Daily Flow 1.5 MGD Peak Capacity Professional Services 2013 Construction: 2014 Mike Atherine, P.E., Project Manager Steve Wonderly, P.E., Project Engineer DELTA WASTEWATER TREATMENT PLANT UPGRADES PDG was the prime consultant for the planning, design and construction of improvements to the Village of Delta s wastewater treatment plant. Work consisted of new motors, and variable frequency drives and PLC control for the four raw sewage pumps; and a new mechanical fine screen to replace the grinder and masonry building to enclose the screen. We replaced the aerated grit removal equipment with vortex style grit removal equipment, replaced the decanters in the SBR tanks and modified the influent piping to the SBR tanks, and replaced the SBR blowers. Submersible waste sludge pumps were installed in the SBR tanks. Improvements were made to the sludge holding tanks including structural rehabilitation, diffused aeration and new blowers. An ultraviolet disinfection system replaced the chlorine disinfection equipment and a new administration building with a laboratory was constructed. WWTP Upgrades Screen Replacement New Building Grant Administration Dan D. Miller, Mayor 401 Main Street Delta, Ohio (voice) (fax) mayor@villageofdelta.org

2 Put-in-Bay, Ohio Environmental and Electrical Engineering, and Construction Administration Project Cost $3.5 million PUT-IN-BAY WASTEWATER TREATMENT PLANT IMPROVEMENTS $1,192,000 OPWC/ARRA/Corps of Engineers Grants 500,000 GPD 1.32 MGD Peak Wet Weather Jack A. Jones, P.E., Principal-in-Charge Michael Atherine, P. E., Project Manager Steve Wonderly, P.E., Environmental Dan L. Knott, P.E., Electrical Doug Nusser, Construction Administration Michelle L. Hister, Grants Administration PDG was the prime consultant for the design and construction of improvements to Put-In-Bay s wastewater treatment plant. The project involved the installation of a third Sequencing Batch Reactor (SBR) treatment basin; replacement of the PLC control system, raw sewage pumps, SBR equipment in the two existing tanks, the chlorine disinfection system with an ultraviolet disinfection system; and the addition of an innovative tipping sludge de-watering system and blower building. The expanded plant has an average day capacity of 500,000 GPD and a peak wet weather capacity of 1.32 MGD. The Village received funding assistance from the American Recovery and Reinvestment Act (ARRA), Ohio Public Works Commission (OPWC), and The Corps of Engineers (Section 594) consisting of $1,192,000 in grants, and funding the remaining costs in low-interest loans. Wastewater Treatment Plant Construction Administration Construction Observation UV Disinfection System New Building Grant Administration Mr. Doug Knauer, Village Administrator Village of Put-in-Bay 157 Concord Avenue Put-in-Bay, Ohio

3 Wood County, Ohio BAIRDSTOWN WASTEWATER TREATMENT AND COLLECTION Engineering, Grant Writing/Administration Cost Engineers Estimate Contract A (gravity sewers, pump stations and force main) $2,216,000 Contract B (WWTP) $3,674,000 Bids Contract A - $1,985,438 Contract B - $3,020,000 OEPA WPCLF Principal Forgiveness ($3.49 M) CDBG OWDA unsewered communities Grant Estimated completion date October 31, 2017 Denise M. Plummer, P.E. Project Manager Steven R. Wonderly, P.E., Project Engineer Joel Sharrit, Electrical Design PDG provided design and construction engineering for the installation of sanitary sewers, 2 pump stations and a new oxidation ditch WWTP in Bloomdale that would be able to handle Bloomdale s existing flow and add the flow from the unsewered community of Bairdstown. Project Elements 6800 LF of 8 gravity sanitary sewer 27 manholes 15,500 lf of 4 force main, including 2 railroad crossings Two (2) 90 gpm submersible pump stations 100,000 gpd oxidation ditch WWTP including a screening building, oxidation ditch, 2 clarifiers, sludge holding tank, sludge drying bed and an administration building. Mr. Jerry Greiner, President Northwestern Water & Sewer District Middleton Pike Bowing Green, Ohio district@nww

4 Grafton, Ohio Environmental and Electrical Engineering, Construction Administration and Observation, Start-up Assistance Project Cost $10.5 million 1.5 MGD Daily Capacity 4.5 MGD Peak Capacity Michael Atherine, P.E., Project Manager Jack A. Jones, P.E., Principal-in-Charge Douglas A. Nusser, Construction Administration Steven R. Wonderly, P.E., Project Engineer Daniel L. Knott, P.E., Electrical Engineer WASTEWATER TREATMENT PLANT SCADA SYSTEM PDG was the prime consultant for the design and construction of phased improvements to the existing wastewater treatment plant consisting of a four-basin Sequencing Batch Reactor (SBR) type treatment process, cloth disk filter type tertiary treatment system, self-cleaning ultraviolet disinfection system, chemical feed facilities for phosphorous removal, dried sludge cake storage building, PLC based automated control system, demolition and renovation of existing treatment plant components, control building laboratory improvements, diesel engine generator standby power system, influent raw wastewater self-cleaning screen, two 400,000-gallon aerobic sludge holding tanks, computerization of plant controls, 1.5-meter-wide sludge dewatering press, 5 MG equalization basin, and miscellaneous buildings. The treatment plant has a capacity of 1.5 MGD on an average daily basis with a peak hydraulic capacity of 4.5 MGD. The project also involved modifications to sanitary sewer lines, repairs to manholes and several thousand feet of sanitary sewer extension from 12-inch to 24-inch diameter. The cloth disk filter type tertiary filter system, which is the first system in Ohio, was selected over conventional sand filters because of its compact footprint and ease of operation. WWTP Improvements Construction Administration/ Observation Building Renovations Screen Replacement SBR Treatment Process David DiVencenzo President of Council Village of Grafton

5 Grafton Wastewater Treatment Plant Improvements The project also included the design and installation of a plant Supervisory Control and Data Acquisition (SCADA) system for control, monitoring and alarming of the entire wastewater plant facility with remote monitoring via an internet connection. The SCADA system include Allen Bradley programmable logic controllers with local HMI as well as a plant wide HMI employing Wonderware software. PDG was responsible for the design of the system in clouding I/O, equipment selection, panel design, functional control description, programming requirements specification, screen requirements development, field installation design, checkout and start-up of wiring system. An independent system integrator was a responsible for the programming and system integration with plant equipment and the remote internet connection based on the design developed by PDG.