Water Treatment Plant – Lakengren Water Authority –
Preble County, Ohio
The Lakengren Water Authority (LWA) located in Preble
County, Ohio provides water and sewer service to a
community developed around Lakengren Lake in 1970. The
water system currently serves over 1,300 homes in the
development. The LWA obtains water from three shallow
sand and gravel wells that pump to a central treatment
facility. The source water contains elevated levels of
iron and manganese. Rapid growth in the development
resulted in the need to evaluate the capacity of the
existing facilities and develop a long-term plan for
meeting future water needs.
We were hired to design the new filtration facility
along with upgrades to each of the well pumps. The
facility is designed to treat 685 gpm and includes
induced draft aeration, chemical addition, rapid rate
gravity filtration, detention, and high service pumping.
The filter is an open-type, four cell filter of concrete
construction. The filter media consists of sand and
anthracite. Chemical treatment includes the addition of
chlorine. Potassium permanganate is also added to aid in
the treatment process. Filtered water passes through a
below-grade 100,000-gallon concrete reservoir before
being pumped to distribution with three vertical turbine
high service pumps.
Backwash waste from the filter flows by gravity to a
red water detention basin before being pumped through a
force main to the LWA sanitary system. The project
included a pump station at the red water detention basin
and over 800 feet of force main.
Jackson County Water Company –
New water System and Treatment Plant – Jackson, OH
Prior to the construction of this project, the Jackson
County Water Company, Inc. (JCWC) obtained potable water
to supply its distribution system for its current 5,000
customers from several water producers within the
region. These included the City of Jackson, the City of
Wellston, Ross County Water Company, Inc., and Scioto
Water, Inc. Jackson and Wellston, which provided more
than 80 percent of the water purchased by JCWC,
primarily use surface water.
 As
growth continued within the JCWC system and within the
systems operated by the source water suppliers, it
became apparent that the current raw water supply would
not be adequate to meet the demand placed on it for the
21st century. This became the impetus for the largest
water project funded by the USDA for Ohio, known as the
Jackson Water 2000 North (Phase 7) Improvement Project.
By developing a new supply and treatment facility, not
only would JCWC gain an adequate source to meet its
system growth, but the volume previously purchased by
JCWC from the Cities of Jackson and Wellston would now
be available to support residential, commercial, and
industrial growth within these communities.
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