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

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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:
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 §761.4l(b)(6)(iii).
If you have any questions regarding this please call Don Hunter
of my staff at 404/881-3433.
Sincerely yours,
~Di~inson, Chief'
Hazardous Waste Section
Residuals Management Branch
Enclosure
• t,lt' :::>l.KLt. L<'.,.UI.J\Ji 'if/A Ji.• ¼ 0 I MIL( ~ mt. 1000 0 1000 2000 3000 4000 5000 6000 7000 FEfT • .. ~ I 5 0 I KILOMETER E=C: E-3 E-3 E-3 E-3 j ----------3 CONTOUR INTERVAL 10 FEET ~. . AFroN., /Vt: 7t . o•ru"" \. ( A \II /./ Jfl/./.r-.'\\ll "-,~ ,,,,,, ""A' MEAN SEA LEVEL " 'I>, ~ \II l'..'111.' . ~·· M \v ;-/f \V J\v(\\ ll:"o_'\ u , .. \..., ~tC :~ -~ ' ~~. . ?: :~ 1 I ' =~~~!:li_ •/ ,~\i\.,_ '.i~~f~ · · I ,~iJ~~ ~~f~, EPA DESIQlATED S1'RFJ\M SAMPL.rnG ~IONS KEY: ur -Unnarred OS -~ Tributary US -earn Upstream ✓(~\\\(\ ~ f ~,-'/\\ ~-\\JI ..,,.~. ""~--. . • . . I;> ~-· RC -Richneck Creek ... JW»1~· ~ "\l . " ,,/-J...._ ~.;.,)' :~ i· . • "._::~ .. w-~~ S""~\,' .fA\-v/ ~ 0 -DS: N36o I/.\.\...........,. 20'30 3" "fJi"t ~~~ ~~ "', lW/1' ~ '?<111~~ . 05i -11~ /;'---.__ ~~ . "~I 41. -• NSS•2Q' ~ · \ ,-.,~ ~· • ·I=, -J'~~f ~ --~,(~ ~~~lJA( IYA-,via'y,P_ ~'m~f ,VJr:Jj'. ~~4~ . .,....,_ W78°0'
~-:•·ecle~~ Register / Vol. 44, No. 106 / Thursday, May 31, 1979 / Rules and Regulations 31553
,e1ce&s•1TY to protect ega~st such~
and may waive the reqwrement., IJl
approval for that incinerator. Any
.ng and waiver under this
~aragraph must be stated in writi&.g
included ea part of the approval.
,) Persons Approved. An approval
designate the persons who own and
1 are authorized to operate the
r.erator, and will apply only to such
sons, except as provided in
agraph (6) below.
7) Final Appro1·al. Approval of an
inerator will be in writing and signed
the Regional Administrator. The
;:iroval will state all requirements
;:ilicable to the approved incinerator.
8) 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 lo operate
~ incinerator. The transferor must also
":ll"lt 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
msferor's EPA incinerator approval.
ithin 30 days of receiving such
itification and affidavit. EPA will issue
1 amended approval substituting the
ansferee'a name for the transferor's
1me, or EPA may require the transferee
apply for a new incinerator approval.
the latter case, the transferee must
Jide by the transferor's EPA approval
1lil EPA issues the new approval to the
ansferee ..
.l'IleX l{
(i) ln•place soil thickness, 4 feet or
compacted soil liner thickness. 3 feet
(ii) Permeability (cm/sec), equal to or
less than 1 X 10-1; ,
(iii) Percent soil passing No. 200 Sieve.
>30;
(iv} Liquid Limit, >30; and
(v} Plasticity lndex > 15.
(2) Synthetic Membrane Liners.
Synthetic membrane linen 1ball be used
when. in the jud8menl of the Regional
Administrator. the hydrologic or
·geologic conditions at the landfill.
require 1uch a liner in order to provide
at least a permeability equivalent to the
soils in (1) above. Whenevei.a 1ynthetic
liner is used at a landfill 1ite. ,pedal
precautions shall be tak·en·to inaure that
its integrity is maintained and that ii ia
chemically compatible with PCBa.
Adequate soil underlining and ,oil cover
shall be provided to prevent exceaaive
stress on the liner and lo prevent
rupture of the liner. The liner muat have
a minimum thickness of 30 mila.
(3) Hydrologic Condition& The bottom
of the lar,dfill 11hail be r.bove the
historical high groundwater table a1
provided below. Floodpla.ina,
ahorelands. and groundwater recharge
areas shall be avoided. There shall be
no hydraulic connection between the
site and standing or flowing aw-face
water. The site shall have monitorin8
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 Protection. (i} Uthe landfill
site is below the 100-year floodwater
elev!ltion, the operator shall provide
761.41 Chemical waste lanctfllls. surface water diversion dikes a:round
· the perimeter of the landfill site with a
(a) General. A cheatlcal waste landfill mini.mum height equal to two feet above
sed for the disposal of PCBs and PCB the 100-year floodwater elevation.
:en.s shall be approved by the Agency . · (ii) If the landfill site ia above the 100-
:egional Administrator pursuant to year floodwater elevation. the operators
,aragraph (c) of this section. The landfill shall provide diversion atructures
hall meet all of the requirements ·· capable of diverting all of the surface
oecified in paragraph (b) of this water runoff from a 24-hour, ZS.year ection, unless a waiver from tliese
b d s.torm. · cquirement3 is o taine pursuant to (S} Topogrop,~y. The landfill site shall
iaragraph (c)(4) of lhis section. In be located in an area of low to moderate
;ddition, the landfill shall meet any relief to m1,Lmize erosion and to help
,lher requirements that may be pre"·ent landslides or slumping.
,rescribed pursuant to paragraph (c){3) (6) Monitoring Systems. (i) Water
if this section. Sampling. (A) For all sites receiving
(b) Technical Requirements. PCBs, the ground end surface water
~equirements for chemi::al waste from the disposal site area shall be
andfills used for the disposal of PCBs samp!ed prior to commencing operations
1.nd PCB ltem:i are as follows: under an approval provided in
(1) Soils. The landfill site shall be § ;'61.41(c) for use as baseline data.
ocated in thick. relati\·ely impermeable (BJ Any surface watercourse
ormations such as la:-ge-area clay pans. designated by the Regional
,Vhere this is not possilile, the son shall Admlnistrator using the authority
iave a high clay end silt content with provided in § 761.41(c)(3)(ii) shall be
he following parameters: sampled et least montl-Jy when the
landfill is being used for disposal
operatior:.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 than once every SIX
month.s after final closure or the
disposal area. .
(ii) Croundwat~r Monitor Wells. (A) If
underlying earth materials are
homogenous. impermeable. and
uniformly. sloping in one direction, only
three aampling points shall be
.necessary. These three points shall be
equally spaced on a line through the
center of the disposal area and
extending from the area of highest water
table elevation to the area of the lowest
water table elevation on the property.
(BJ All monitor wells ahall be cased
and the annular space between the
monitor zone (zone of saturation) and
the surface shall be completely
backfilled with Portland cement or an
equi\·alent material and plugged with
Portland cement to effectively prevent
percolation of surface waler into the
well bore. The well opening at the
aw-face shall have a removable cap to
provide accesa and to prevent entrance
of rainfall or storm water 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 applicable State or Federal
discharge sta:idards or recycled to the
chemical waste landfill.
(iii) Water Analysis. As a mi!limwn,
all sam;,les shall be an1lyzed for the
following parameters, 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 anal)·tical procedures for
these parameter, shall comply with
those specified in 40 CFR Part 136 as
amended in 41 .FR 5Zi."9 on December 1,
1976.
(A) PCBs.
(BJ pH.
(CJ Specific Conductance.
(OJ Chlorinated Organics.-~,.-e .... rd
(7) Leachate Collection. A leachate
collection monitoring system shall be
Installed above the chemical waste
landfill. Leachate collection systems
shall be monitored montiLy for quantity
and physicocheatlcal c!laracteristics of
leachate produced. The leachate shou!d
be either treated to acceptable limits for
dischar;ie in accordance with a State or
Federal permit or di~posed of by another
State or FederaUy appro\·ed method.
Water analysis shall be conducted as
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