NCD980602163_19820702_Warren County PCB Landfill_SERB C_Deviation from Approved Construction Plans-OCR

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N o rt h Carolina Department of
Crime Control ~J
. _& Public Safety ·
512 N. Salisbury 2>treet P. 0 Box 27687 Raleigh 27611-7687 [phone]
J0mes B. Hunt, Jr., Governor July 2, 1982 Heman R. Clail~, .s~creli:lnJ
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Mr. Charles Jeter
Regional Administrator
EPA, Region IV
345 Courtland Street
Atlanta, GA 30365
Re: N. C. Superfund Project
PCB Landfill
Deviation from Approved Construction Plans
Dear Mr. Jeter:
Groundwater monitoring wells have recently been installed at the
Warren County PCB Landfill as part of its construction activity. While
apparently meeting EPA standards, they do not conform to North Carolina
Standards which require additional grouting and use of a bentonite
seal above the well screen. I am requesting that North Carolina be al-
lowed to install four additional groundwater monitoring wells to replace
the four existing unsatisfactory groundwater monitoring wells. These
replacement wells will be:
l) Installed within 10 feet of the existing wells .
2) Installed with a bentonite seal above the well screen.
3) Installed with grout extending from land surface to the top of
the bentonite seal.
4) Screened so as to provide monitoring capability for at least
the top ten feet of the surficial saturated zone at its lowest
expected elevation.
5) Developed using drilling mud or revert as approved on June 24,
1982 via field letter (Tom Karnoski -N. C. Solid and Hazardous
Waste Management Branch to Robert Boone -Sverdrup & Parcel).
6) Installed as soon as possible.
Mr. Charles Jeter
Page 2
July 2, 1982
7) Wells will be clearly labeled as monitor wells, not to be used
as a source of water supply.
8) Sampled (2 replicates) to assure background quali t y data is
similar to background samples collected from the original wells
prior to any waste disposal. If background water quality deviates
from that of the original wells, a new background water quality
data base line must be established for the new wells as originally
required and prior to any waste disposal.
Upon acceptance of the new wells, the original wells will be abandoned
in accordance with North Carolina standards.
If you have any questions, please contact me.
\<JWPj r:jj
cc: Jim Scarborough
0. \<J. Strickland
Perry Nelson
Gene Roberts
Frank Rainey
Jack Reavis
Bi 11 Raney
Bob Jansen
Tom Karnoski ✓-
Sin rely, .
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1{i/b!!i;l,. Jr'-<. --0
Assistant to the Secretary