NCD980602163_19830117_Warren County PCB Landfill_SERB C_Post-closure maintenance-OCR

Ronald H. Levine, M.D., M .P.H.
ST A TE HEAL TH DIRECTOR
DIVISION OF HEAL TH SERVICES
P.O . Box 2091
Raleigh, N.C. 27602-2091
January 17, 1983
MEMORANDUM
TO: Ronald H. Levine, M.D., M.P.H.
State Health Director
Division of Health Services
FROM: q.;0strickiand, Head
SUBJECT:
Solid & Hazardous Waste Management Branch
Environmental Health Section
Warren County PCB Landfill
The State of North Carolina has the responsibility to properly maintain
the PCB landfill in Warren County following its closure. These post-closure,
long-term maintenance tasks are related to short-term, temporary work that
needs to be performed until the weather will permit the contractor to
complete construction. The following is a list of those tasks:
A. Access Control and Site Security
Procedures to control access and provide protection for the groundwater
monitoring wells and easily damaged landfill components need to be
implemented as soon as possible. The contractor is hesitant to put
up his final fence until he has completed the landfill construction.
This conceivably could be next April or May. Local residents currently
wander freely around the site.
B. Removal of Water from Leachate Collection Sy stem
Water currently inside the landfill needs to be removed immediately to
protect the integrity of the liner system. EPA permit conditions
specify that any water discovered in the leachate collection systems
be removed o~ a monthly basis. Sverdrup and Parcel's water removal,
treatment, and disposition system has been designed; but the equipment
has yet to be purchased or installed. A Class II wastewater treatment
plant operator needs to be provided to run the system legally.
C. Miscellaneous tasks that need to be performed by the contractor include:
1. Concrete pads for leachate collection pipes
2. Manhole covers for treatment works
3. Cover cap for leachate detection system
4. Final length of treatment works effluent line
ST A TE OF NORTH CAROLINA
Jomes B Hunt. Jr/ Sarah T Morrow, MD . MPH DE PARTMEt✓T OF HUMAN RE SO.URCES GOvEPt•,OR SECRET ARY
Memorandum
Page 2
January 17, 1983
5. Regrading of eastern portion of landfill to eliminate ponding
water.
6. Repair holes in top liner
7. Finish construction of final cap
D. Tasks whose financial responsibility has yet to be resolved:
1. Contingency funds (fuel, etc.) to operate pump stations
2. Any additional activated carbon that may be needed in treatment
works
3. Monitoring and analysis of treated water prior to land application
4. Final disposition of used (contaminated) activated carbon, sand
filter, treatment works structures, and surface impoundment liner
5. Stabilization and maintenance of access roads to groundwater
monitoring wells and stream sampling locations.
6. Materials to provide N. C. Solid & Hazardous Waste Management
Branch means to determine existence and depth of leachate
7. Carbon filter for gas vent if required by EPA
8. An inspection, at least once a week, to determine potential site
problems (i.e., erosion, vandalism, etc.)
9. Routine engineering inspection to determine subsidence, function-
ability of leachate collection systems, liner systems, etc.
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