CASE STUDIES
Clear choice for enduring wastewater equipment at Heritage Lake
Thirty years on since the opening of its first dedicated wastewater treatment plant, The Clear Creek Conservancy District (CCCD) has more than doubled flow capacity at the coveted Heritage Lake in Indiana from 400,000 gallons a day to 900,000 gallons a day.
In expanding the plant, which has added a third oxidation ditch (and rerated the existing two), a third Clarifier and converted the chlorine- contact tank to an Ultraviolet light system, the upgrade has also included intricate refurbishment of around 50% of the inlet equipment, which was found to be in excellent working order, despite being in service for over three decades.
Located just 30 miles west of Indianapolis, surrounded by natural beauty that provides waterside living that is second to none, the 320-acre Heritage Lake certainly appears to have it all for the residents of its 3000 lots (1689 homes). It most certainly has an exemplary wastewater treatment
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operation that has served this community that began life there in 1972.
As the plant approached 90% of its design capacity due to an inevitable growth in population, CCCD began looking keenly at the measures needed to continue to provide the best possible wastewater treatment service. An early warning sewer-ban letter from the IDEM (Indiana State Department of Environmental Management) had been received as a polite nudge that action would be necessary at some point. Not that this very well-run plant needed any reminder. Wastewater Treatment Operator and Operations Manager, Doug Clodfelter has been at CCCD since 1990, when two small package plants were seriously struggling to contain the increasing amount of flow that was coming in. Danville-based consulting engineers Curry & Associates were appointed to design the first main treatment plant in the early 1990s, with Lakeside Equipment Corporation of
| July 2025 |
draintraderltd.com
Bartlett, Illinois chosen to provide a range of wastewater solutions, including two oxidation ditches.
‘Very favourably in terms of our investment’
“It has proved to be a very wise decision,” said Doug Clodfelter. “Sandblasted, cleaned and repainted, it is incredible to think just how much of this 30-year-old Lakeside equipment is still perfectly good to keep using. Not surprisingly, after three decades, when tanks were drained down and everything was opened up by our contractor, Patterson Horth, plenty of underwater pipes and angle irons (that hold the covers on the rotors) were found to be rusted. Some were still ok, but Lakeside and Ken Sobbe from their equipment representative, FACO, advised us on parts that maybe looked fine, but wouldn’t last as long as we wanted to. This approach to continuing where possible with existing equipment throws up some unknowns. It certainly presents challenges to the supply
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