NCD980602163_19900713_Warren County PCB Landfill_SERB C_Maintenance and Operations at the PCB Landfill-OCR

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State of North Carolina
Department of Environment, Health, and Natural Resources
. Division of Solid Waste Management
P.O. Box 27687 · Raleigh, North Carolina 27611-7687
James G. Martin, Governor
William W. Cobey, Jr., Secretary
MEMORANDUM
TO: J. Gordon Layton
THROUGH: Jim Coffey
FROM: Bobby Lutfy
July 13, 1990
RE: MAINTENANCE AND OPERATIONS AT THE PCB LANDFILL
William L. Meyer
Director
Several modifications in the leachate collection and disposal
system are necessary in order to determine the amount of leachate
being generated, the recharge rate, and the levels of PCB in the
treated leachate prior to disposal. There is also a need to restrict
access to the leachate lagoon.
A water level indicator and accessory equipment should be
purchased and installed in the leachate collection system in order to
determine the water level in the system and calculate the recharge
rate. A leachate storage container should be purchased and installed
to store the leachate until it can be analyzed in order to decide the
proper method of leachate disposal.
In order to restrict access to the leachate lagoon, a fence
should be installed around this area. Over the past few months there
has been evidence that "three-wheelers" (or some other type of small
all-terrain-vehicles) have been operating in the lagoon. In order to
protect the public safety and minimize any liability to the State of
North Carolina, it is very important that a fence be constructed to
inhibit access to this area.
Fencing-in the area of the leachate lagoon would also facilitate
the problem of where to place a storage container for the leachate.
If the leachate lagoon were to be fenced in, the leachate storage
container could be placed in the bottom of the lagoon. This would
restrict public access to the leachate storage tank while the
leachate was being held for analysis prior to disposal. The leachate
lagoon would serve as a built-in secondary containment system in the
event of a leak in the storage tank. Due to the design of the
present leachate collection and treatment system, this seems to me to
be the safest, easiest and most cost effective way to modify the
existing system to enable the leachate to be held prior to disposal.