NCD980602163_19820421_Warren County PCB Landfill_SERB C_John E. Dickinson letter to O.W. Strickland-OCR

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"' % ~ s W UNITED STATES ENVIRONMENTAL PROTECTION AGENCY .,, ~ ~"''◄tPRO'~<-"' APR 2 ;1 1982 REGION IV ~
345 COURTLAND STREET f t\~CE/ V(O,
4AW-RM ATLANTA. GEORGIA 30308 .~ l
Mr. O. W. Strickland, Head
Bureau of Solid & Hazardous Waste Mgmt.
NC Dept. of Human Resources
Post Office Box 2091
Raleigh, North Carolina 27602
Dear Mr. Strickland:
1-.-t,,. ,~ ~-
: 5'; APR 23 1982 ~ r--' .._ ~ ~I -~-(,~· ,V'J' ~ ..... JtAsrE ~ti-.~'f
On March 31, 1982, Don Hunter of my staff attended a meeting at
your office regarding the recently approved Warren County PCB
landfill. After the meeting, he visited the site with Bill Meyers
of your staff. While at the site, Mr. Hunter took the opportunity
to examine the surface runoff patterns and stream flow for the
purpose of designating stream sampling locations per Region IV's
approval conditions for the landfill (see December 14, 1981,
approval letter).
These locations are identified on the enclosed map by point mark
and by latitude and longitude. At each of these locations and at
the times and frequencies provided for in the approval, both water
and sediment samples shall be taken and analyzed for the parameters
found at 40 CFR §761.41(b)(6)(iii).
If you have any questions regarding this please call Don Hunter
of my staff at 404/881-3433.
Sincerely yours,
~Einson, Chief,
Hazardous Waste Section
Residuals Management Branch
Enclosure
MH 5Y.," 9ii"Mil5 • ~ ~,-~ . '~\ _s ~ ~ ~ ~~. Y;·' ' .)\.,nLL ! «:'+ VI.N I MIL[ l o 1000 0 1000 2000 3000 ◄000 f>()()() 6000 7000 FEET ,, ~~ . 'Irv' I 5 0 I KILOMETER e==r::: F--3 E--3 F--1 E-3 I CONTOUR INTERVAL 10 FEET DATUM IS MEAN SEA LEVEL Arr(),..,~ //& 7 ~ ,,,,.,, '1tlaJ ~ ·a ~111.•·-~ -. ·••-~u "n ta-,)'~,;\\ ~111' \V f-/(\V J\v(\\ f\:'b_"' u ,'fr(, .~;~Jitt~~, EPA DESIQ.lATED SI'REAM SAMPLING LCOtl'IONS KEY: RC -Richneck Creek ur -Unnarred Tributary OS -Downstream US -Upstream ~-~ ,· .,JfJf))/~ ·~· . '-'-t. 'I . r , -os~1~36·020•·30·.·3" ~ _ W7A0oq•s3.9" Jr{' ~~;:'1'.~·111\\v.: ... ~ -~'-'2dc..,~---·· ~~ -~ ' ~-05.5' .1 l
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•.. y•ecle;al Register / Vol. 44, No. 106 / Thursday, May 31, 1979 / Rules and Regulations 31553
.,-cess•JJ)' to protect against such a
'~nd may waive the requirement., in
approval for that incinerator. Any
.ng and waiver under this
~aragraph must be stated in writi,.g
included as part of the approval.
.j Persons Approved. A:n approval
designate the persons who own and
J are authorized to operate the
r.erator, and will apply only to such
sons, except as provided in
agraph (6) below.
7) Final Approl'al. Approval of an
inerator will be in writing and signed
the Regional Administrator. The
:>roval will state all requirements
?licable to the approved incinerator.
S) Transfer of Property. Any person
.o owns or operates an approved
:inerator must notify EPA at least 30
ys before transferring ownership in
~ incinerator or the property it stands
on, or transferring the right to operate
: incinerator. The transferor must also
1-:f?'Jt to EPA. at least 30 days before
ch transfer, a notarized affidavit _
;ned by the transferee which states
at the transferee will abide by the
insferor's EPA incinerator approval.
ithin 30 days of receivin8 such
1tification and affidavit.. EPA will issue
, amended approval substituting the
ansferee's name for the transferor's
1me, or EPA may require the transferee
apply for a new incinerator approval
the latter case, the transferee must
)ide by the transferor's EPA approval
1til EPA issues the new approval to the
ansferee ..
J'IleX l{
761.41 Chemical waat• landfills.
(a) General. A chemical waste landfill
sed for the disposal of PCBs and PCB
:rffis shall be approved by the Agency
:eg\o:ial Administrator pursuant to
aragraph (c) of this section. The landfill
hall meet all of the requirements ..
oecified i..'l paragraph (b) of th.is
ection, unless a waiver from these
cquircment.:1 is obtained pursuant to
iaragraph (cl[4) of this section. In
,ddition, the landfill shall meet any
,ther require.:nents that may be
Jrescribed pursuant to paragraph (c)[3)
Jf this section. ,
(b) Technical Requirements.
,~equirements for chemi:al waste
.andfills used for the disposal of PCBs
i.'ld PCB ltem:i are as follows:
(1) Soils. The landfill site shall be
.ocatcd in thick. relatively impermeable
formations such as large-area clay pans.
Where lhis is not possil,le, the soil shall
~ave a high clay end silt content with
the following parameters:
(i) In-place soil thickness, 4 feet or
compacted soil liner thickness, 3 feet;
(ii) Permeability (cm/sec), equal to or
less than 1x10-7;
(iii) Percent soil passing No. 200 Sieve,
>30; .
(iv) Liquid Limit, >30; and
(v) Plasticity Index > 15.
(2) Synlhelic Membrane Liners,
Synthetic membrane liners shall be used
when. in the judgment of the Regional
Administrator, the hydrologic or
·geologic conditions at the landfill.
require such a liner in order to provide
at least a permeability equivalent to the
soils in (1) above. Whenever.a synthetic
liner is used at a landfill site, special
precautions shall be taken to inaure that
its integrity is maintained and that it it
chemically compatible with PCBa.
Adequate soil underlining and soil cover
shall be provided to prevent exceaaive
stress on the liner and to prevent
rupture of the liner. The liner muat have
a minimum thickness of 30 mi.la.
(3) Hydrologic Conditions. The bottom
of the lar,dfill 11hail be "hove the
historical high groundwater table a,
provided below. Floodplain&,
shore\ands, and groundwater recharge
areas shall be avoided. There shall be
no hydraulic connection between the
site and standing or flowing surface
water. The site shall have monitoring
wells and leachate collection. The
bottom of the landfill liner system or -
natural in-place soil barrier shall be at
least fifty feet from the historical high
water table.
(4) Flood Protec/ion. (i) If the landfill
si!e is below the 100-year floodwater
elev!ltion, the operator shall provide
surface water diversion dikss a.round
the perimeter of the landfill site with a
minimum height equal to two feet above
the 100-year floodwater elevation.
· (ii) If the landfill site ia above the 100-
year floodwater elevation. the operator,
shall provide diversion atructures
capable of diverting all of the surface
water runoff from a 24-bour, 25-year
storm. ·
(5) Topograp,~y. The landfill site shall
be located in an area of low to moderate
relief to minimize erosion and to help
prevent landslides or slumping.
(6) Monitoring Systems. (i) Water
Sampling. (A) For all sites receiving
PCBs, the ground and surface water
from the disposal site area shall be
samp!cd prior to commencing operations
under an approval provided in
§ ;'61.41(c) for use as baseline data.
(BJ Any surface watercourse
designated by the Regional
Adminis:.ator i;sing the authority
provided in § 761.41(c)(3)(ii) shall be
sampled al least monti-Jy when the
landfill is being used for disposal
opera tior.s.
(C) Any surface watercourse
designated by the Re~ional
Administrator using the authority
provided in§ 761 .4l(c)(J)(ii) shall be
sampled for a time period specified by
the Regional Administrator on a .
frequency of no less I.ban once every six
months aiter final closure of the
disposal area. .
(ii) Cround.,,,,·ot~r Monitor Wells. (A) I!
underlying earth materials are
homogenous. impermeable. and
uniformly. sloping in one direction. only
three sampling points shall be
.necessary. Tbeae three points shall be
equally spaced on a line through the
center of I.he disposal area and
extending from the area of highest water
table elevation to the area of the lowest
waler table elevation on the property.
(BJ All monitor wells 11hall be cased
and the annular space between the
monitor zone (zone of saturation) and
the surface shall be completely
backfilled wilh Portland cement or an
equh,aleot material and plugged with
Portland cement to effectively prevent
percolation of surface waler into the
well bore. The well opening at the
surface shall have a removable cap to
provide access and to prevent entrance
of rainfall or stormwater runoff. The
well shall be pumped to·remove the
volume of liquid initially contained in
the well before obtaining a sample for
analysis. The discharge shall be treated
to meet applic11ble State or Federal
discharge sta:1dards or recycled to the
chemical waste land.5!.l.
(iii) Waler Analysis. As a mL'1imum,
all sam;,les shall be an3lyzed for the
following parameter,, and all data and
records of the sampling and analysis
shall be maintained as required in
Annex. VI-§ 761.45(d)(l). Sampling
methods and analytical procedures for
these parameter.i shall comply with
those specified in 40 CFR Part 138 as
amended in -n fR 5:!i.'9 on December 1,
1976.
(Al PCBs.
(Bl pH.
(C) Specific Conductance.
(D) Chlori.11at1,d Organics.-.ll-,te,._. phd
(7) Leachate Collection. A leachate
collection monitoring system shall be
installed above the chemical waste
landfill. Leachate collection systems
sha II be monitored monthly for quantity
and physicochemical characteristics of
leachate produced. The leachate shou!d
be either treated to acceptable lunHs for
discha~e in accordance with a Stale or
Federal permit or disposed of by another
State or Federally approved method.
Water a:-ialysis shall be conducted as
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