The Nags Head office of
Hobbs, Upchurch & Associates designed the Camden Village Core Wastewater
Treatment Plant for Camden County, North Carolina. The project consisted of
preparing a Preliminary Engineering Report, applying for grants, and detailed
design of the system.
In preparing the Preliminary Engineering Report, the sewer service area was
determined by examining land use patterns, soil characteristics, availability
of useable potable water, and growth projections. A combination of gravity
sewer and force mains were proposed for the collection system. The treatment
facility will consist of a mechanical treatment plant providing tertiary
treatment utilizing spray irrigation for disposal.
Grants were applied for and received from the USDA Rural Center and the Clean
Water Management Trust Fund (CWMTF). The Rural Center contributed $3,000,000 in
the form of an Unsewered Community Grant. The CWMTF contributed $2,564,011 due
to the failing septic systems in the project area. The Camden County School
system provided $450,000 since they will be one of the major users of the
system and Camden County provided $500,000 through a Tax Growth Loan.
Due to recent changes in North Carolina Environmental Policy Act, the project
required an Environmental Assessment. The initial flow for the first phase of
the project is 60,000 GPD. Additional flow is expected from three developers
currently negotiating agreements with Camden County. The collection system
consists of 6,200 LF of 8-inch PVC gravity sewer, 7,800 LF of 4-inch PVC force
main, 2,000 LF of 6-inch PVC force main, 93,500 LF of 8-inch PVC force main,
and nine pump stations. The mechanical treatment plant consists of aeration
clarification with sand filters to provide treatment to reuse standards. This
is necessary due to the spray field site. The spray field site is former
agricultural land that has parallel ditches spaced approximately every 200
feet. By treating to reuse quality standards the ditch buffers are reduced from
100 feet to 25 feet. Green Ash trees will be planted and harvested every 10 to
12 years for wood chips that may be used for pulp, energy, or mulch.
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