NCD980602163_19830630_Warren County PCB Landfill_SERB C_Environmental Monitoring of the PCB Disposal Facility-OCR

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Ronald H. Levine, fv'.i.D., M.P.H.
DIVISION OF HEALTH SERVICES
P.O. Box 2091
Raleigh, N.C. 27602-2091
MEMORANDUM
TO:
FROM:
SUBJECT:
June 30, 1983
0. W. Strickland, Head
Solid & Hazardous Was.te Management Branch
Environmental Health Section
Thomas C. Karnoski, Environmental Engineer )C~
Solid & Hazardous Waste Management Branch
Environmental Health Section
Environmental Monitoring of the PCB Disposal Facility
STATE HEALTH DIRECTOR
Environmental monitoring of the PCB disposal facility to identify releases
from the landfill consists of select sampling and analyses of groundwater,
::su.1.l:e1\.:e wci~~~, .::.::::! ::::'.!"!:"f~,:e ~.13ter sediments. Analytical paraineters dictated
by EPA are pH, specific conductivity, and total PCB for groundwater and
surface water and total PCB for purface water sediments. All sampling,
analytical, ·and security chain of· custody procedures rigidly follow EPA
and N. C. Division of Health Services accepted methodologies.
Locations of the four groundwater monitoring wells were designated by EPA
as were the four surface water and surface water sediment sampling points
(see attachment).
The following identifies the dates that environmental monitoring events took
··.place:
Pre-Operation Monitoring of Groundwater to Determine Background Quality
August 20, 1982
August 30, 1982
September 6, 1982 '
Pre-Operational Monitoring of Surface Water and Surface Water Sediments
to Determine Background Quality
July 7, 1982
August 3, 1982
August 10, 1982
Ooerational Phase Monitor:tng of Groundwater, Surface Water and Surface
Water Sediments
October 5, 1982
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Memorandum
Page 2
June 30, 1983
Post-0 erational Phase Monitorin of Gr undwater Surface Water and Surface
Water Sediments (to occur indefinitely wice each year)
November 29, 1982
May 16, 1983
To date, all monitoring activity has indicated no release of PCB's are
occurring at the disposal facility. All analytical data is available as
a part of public record.
A functional aspect of the landfill's design is a mechanism to remove free
liquid from the waste mass and hence eliminate material that has migration
(or release).potential. Pumping of the leachate collection system commenced
on March 7, 1983 and continued at various intervals through June 1,· 1983.
Approximately 5,000 gallons of free liquids were removed from the landfill
and treated at the landfill's treatment works. Below are dates where water
analytical work was .conducted on influent and effluent water of the treat-
ment system:
March 7, 11, 14, 16, 21, 22, 23, 24, 28, 29, 30
April 1, 5, 7, 11, 12, 13, 14, 18, 19, 20, 25, 26, 27
May 10, 25
June 1 ··---· ··•
The highest concentration of PCB's detected in the influent water was 2.47
ppb [J..47 (10-7)% by weight]. All effluent analyses show PCB concentrations
less than .1 ppb D.(10-8)% by weight]. Att ached are allowable concentrations
of PCB's in food and feed products according to 29 CFR 109(B). Effluent from
the treatment works meets EPA drinking water standards.
Over fifty-five private drinking water wells from residents in the area around
the landfill were sampled in January of 1983. All analytical data showed no
detectable levels of PCB's.
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Attachments
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