Waste
is brought to the landfill or transfer station by vehicles
that collect it from household and businesses throughout Carteret,
Craven and Pamlico counties. At the transfer stations, the
waste is re-loaded into large tractor-trailer trucks for transportation
to the regional landfill. Transfer stations are located on
NC 306 North in Grantsboro (Pamlico County) and on Hibbs Road
in Newport (Carteret County).
All
waste entering the landfill is weighed on the scales
and directed to the proper disposal site, either solid
waste, yard waste or inert debris.
For
residential customers with small amounts of household
waste or trash, a convenient drop-off center has been
constructed. This area is paved and elevated to make
disposal easy and convenient. A box is also located
here for the free disposal of appliances.
Waste
is compacted at the "working face' by large compacting
machines to maximize the use of air space within the
landfill cell. Maximum compaction means lower costs
and less use of landfill space. At the end of each day,
the working face is covered with dirt or another approved
material.
After
waste is deposited into the landfill, it begins to decompose.
One of the byproducts of waste decomposition is the
production of landfill gas. The predominant substance
in landfill gas is methane. Methane is a greenhouse
gas and contributes to global warming, so CRSWMA is
required to collect and burn this gas rather than release
it to the atmosphere. This combustion occurs 24 hours
per day, 7 days per week. While the blue flame is not
visible in the daytime, at night the flame can be seen
shooting 12 to 15 feet above the flare station pictured
here.
Water
that passes through decomposing waste is called "leachate".
To protect the groundwater, CRSWMA utilizes a very complex
system of liners and water collection systems. The water
collected in this system is aerated in large collection
ponds and then treated in the City of New Bern's state-of-the
art wastewater treatment system.
After
a landfill cell is full, CRSWMA proceeds to permanently
close the area. Closure includes placing additional
liner materials on the outside of the cell, gas collection
wells are installed and a drainage system is installed
to ensure that stormwater is controlled as it comes
down the side slopes.
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