NCD980602163_19790604_Warren County PCB Landfill_SERB C_EPA Approval and Conditions-OCR

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APPENDIX C
EPA Approval and Conditions
For the Warren County
PCB Disposal Site
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©EPA
June 4, l 979
4AH-RM
Honorable James IL tlunt
Governor of :iorth Carolina
State Capitol
Raleigh, North Carolina 27611
Dear Governor Hunt:
On February 17, 1973, the United St11tc'.; [11'/irori;::cntJl Prot'..:cth·
,\~ency ((P;\) published final r1?qulc1tio11:-; in t i ,,: F,:,Jenl Pc'1is:!?r
(43 FR 71S0-7164) on Polychlorinated flipi:f~11 ·1ls C?t3~). Ji~-Gos.:ii-
ancJ Marldnq. These regulation,; v1 r•r1~ ,1;:,r:1 1<i!.!•~ by ti;•_• F1.: '·:->r,-,1 :'.-.:q1-;:,:r-
{ 43 FR 33918-33920} on /\ti I, 11H ;:: • 19 ;;~. l : :~', ~ r~'.J u 1 u :..'i°r)-lis -p-ro':i' i ;)°( :~-·-
the cJisposJl of PCBs at J11•,' '.ii tr. n()t ,,1,Dr.>v1"f h·t the Ef'i'. ,1 ftt:.:r
/\cril 18, 1973, and these rrquliltio,1•; 11•c:u~r~ tlnt th? C\·:n cr ~n ,./'Jr"
opcrJtor of il chemical \·1c1stt! 1.-,ncifi i l w.•:·,! for t.11 1! ,iL:·os,il of r:~;::
submit infoni:ation in accord,in,-,~ vlit!1 Srr::r:.inn 7;;1_,;:, (h;_,:::icul .!;;.;~c
Landfills, to the Regional Ad:'linistr.itor ~c.,r r~vi;.;i-1.
in accorrfonce with the al.Jove rc>fr::rC'.:lC:f"~t ,·(~'JUl,Hions, .1 fo,,::,i: c1;11:1~-
cation \-1as fi1~d \'lith tl,is office duLc:c! L,!c.;r:i :bcr 1:-!, 197;:, ;-:.::11u~s~inq _
approval of a site in Harren County, r:.-1r~IJ C,iroli11J 1·1hich •.-,ii1 !,(•
01·med and opcrJted by the State of ::cirt:1 C,1rol in.:i und us1:d Coi· ti,c
disposal of PCB contaminated soil frnlit U1e nigh.,,a/ shoulders iii tile
State and from the Fort Gragg 111il i tJry r0.s2r·1,Jtion. /\ pui)l ic he ,1ring
was held in H,1rrenton, f-lorth Carolino 011 Jr1nuary •L 1'.)79, fr.r p..Jb:ic
input. Tne hec1ring record \-lu'i held uper1 1H11.il Ja,:uc1ry 12, 197:i, for
additional written public input into tllr. Jecisinn process.
Tl11~ result of EPA's rcvic1-1 is th.1t tllr riropos,r.d ~itc will llih~t all the
technical requirements for a chcmicJ1 \'lt.1",tc lirndfill JS requfrcd in
Section 761.41 (b), when constructed in Jccurdance 1-1itl1 t!u! enclos~cJ
conditions to this approv.:il except fur the followin<J:
(1) 761.41(b)(l)(vi) ";\rtificia1 liner tllickness 30 ;ni1. or
great(?r."
(2) 761.-~l(b)(Z) "ihc site sll,1l; i.,,: ,j L lcJst fifty fe~!L f1·,J1 ,, the
ne..ir~st groumh·1at~r."
(3) 76i.41(b)(5)(iii)(J) "Ch1orin,,~,.d Or!JJnic:;."
Ti1esr~ thn!e rc11uirer.:rnts ,in~ 11\!rd •v •::., i •,. ,i for l.:!e 1·:.:c..1~•"1:, ~;1·11::1 in
th,~ e11closeJ tcclrni ca 1 re 1: i ti•.-,. Y111;r r1:••ue". ~ f.il ,,,.ii-Jc t:10. lc:,1r:;1 : ~c:
co11ection s:1s tr.m undcrncilt!i t:a! 1 iw:r· is d!::1;i1;d :or tile rec:-:;or:s
stc1tcJ in the enclosed i.e(h:i ical 1·r":ir·.-1 .
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Accordingly, the W.Jrren County. Nn1·th C,,n;! ;,;., -;1:c ,., L:': .;•,med crn d c;..;er:1tcj
by the State of !·lorth Carolina for tl1t~ Ji:J\.:.,l: ,,f ;:-,::_ co .. ~::,·1~1Jt:::d 11 igr.'.,Jy
shoulder soil is hereby approved ~ul.J .1cct : , :.:,,~ •.:n ::1 :s-.::d ,:r~nriit~ur~s JS a
chemical \-1aste landfill as authorized in :.;i) t~f':-:, P,1r~ 761. lt is ur.derstocd
by EPA and the State of North Carol inJ thJc. U1 i::, Jppro,.::.: ic; ba :-2s ::11 the
conceptual design only and thJt the finul const :·1Jcthr. pl.:.:1s ,1nd :.peci Fi ca-
tions (if any) must be approved in writL10 by r.fli~ office ~rior t::i
the initiation of construction.
This approval is net to be construed to be apprc v1 l f:r inci~eration,
storage, marking or records and monitoring. We will continue to work
with you in any way we can ta expedite a puhl ic health oriented and
environmentally sound solution to the PCl3 problem in i·lorth C~rol i na.
Sincerely yours, · -2~L(l_-~ ohn C. White c•
Regional AdministrJtor
Endosures
cc: Herbert L. Hyde, Secretary
NC Dept. of Crime Control
& Public Safety
MarsLJll Staton, Chief
Sanitary Engineering Secbori
Division of Health Services
NC Dept. of Human Resources
Jerry Perkins. Head
Solid Waste & Vector Control
N.C. Dept. of Human Resources &
Division of Health Services
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Approval Corid1ti0ns fo,· the PCJ Ui-:;Do::;.::1 Site 0.-11,ed
And Operated by the St,1te of florth Cii 1·01 inJ in
Warrer. County, ~lnrth C.:.r:;l in<1 on the Proo':!rty Described
in C-overnor Hunt's Cec21r.jer 12, 1:)72, i1.pp1 i.:Eiun a.:; C-·i ,.·:j
by Carter C. ?8;Je Jnd LincJ \·L P•i ~c round ir. De~J 8c".Jk 278,
Pase 252.
A. General Requirements (a11 r::;:orts sho,~ld :,: sent to the Regional
Administrator, Attention: Ja:i:eS H. Sorbrou<;h):
1. Notify EP,"\ at least tr,o wc~:<s in ,.H1·::.11c~ of th~ expected star"t of
·construction.
2. Notify EPA at least t,·.o ·,;eeks in c:dv,rnce of the initiation of disposal
of PCB waste at the s~te.
J. Send EPA the data which is re1uircd ~Y 43 FR 761.41{b)(5), monitoring
systems for baseline ar.::1 Oi1 tne frclluencics sp~cified.
4. 1-iaintain re:::ords as .soecifiP.d in 43 Fi~ 761,45(b)(3) as 'appropriate
and submit 1·lithin 90 9ns after cl 1)SJr"~ of the site to the P.egiona1
Administrator. ·
5. Advise EPA irrrnedi~tely of any c•1~n<Je'i, ttlterJtions or divergences
in the operational and manage:"'i,:ii ~ol icics and pr'Jcedures as out-
lined in the documents submitted ij1 :.upport of 1:he application.
6. Report to EPA any instance of de~ection of PCBs through the 1'!10nitor-
ing program i1111iediately.
B. Technical Conditions of Approval:
1. The one foot of cover to be placed only on the middle 20 feet to
30 feet of the first lift of waste to preclude shunting any infil-
tration to the side walls.
2. A soils engineering firm shall be employed to provide quality control
during the construction of the'clay-silt liner.
J. Engineering expertise shall be provided by the State or a consulting
firm on-site during all operation~ to provide and assure conformance
with the final plans. Such as!;ur,rnce !;hull be furnished to the
Regional Administrator .:it the co:11pletio11 of the project \'11th a copy
of "as built" plans.
4. A record shall be plilccd on the r,·;ip~rty deed i~hii:h !;tipulates
the particulJr bou11d.1ry of the di~;,;i•;,:il ,1r~.1 cind 1·1Jste cofltaincd
therein with the associated \-,aste clc ·✓Jt:ions.
5. The State shall maintain an "ttll ·.,,~.1t_1i,-r" -1cces~ r0ar1 indi:fi ,,itely
to permit access to the site and to :',Ki 1 i ccHe co 11 ec ti on of 5amp 1 es
from r.;onitoring well~.
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6. Waste •.-Jil1 be corn;,acted as rr.uch ~s rruc::ii:Jbl~ \·lith tracked equipment to iJrevent settler.ent aft~r closure~.
i. AppropriJ te eras ~on contrn 1 ~cas~res shJ 11 be applied during excava-tion, filling and after clo~urc to minimize erosion.
6. Trucks used for hauling the waste ~u~t be covered.
9. The fin-11 '.)]a;;s ~nd sped fic.:th:ns (~ i-Jny) shall be submitted to the Region2.l Ad:7iinistr.:tor (>-\ttcntion: J<J.111es H. Scarbrough) and written approval received prior to the initiation of construction.
10. A leachJte collection syst1m with J ~ump and access which will allow pumping out of ~nv collected leachate is required ~bove and below the clay liner.
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UNITED STATES ENVIRO: 1•1.1ENTAL Pf~OTECTIOt~ AGENCY
June 4, 1979
:'~c:m.ical ?ev'!.e,; -:::-:~c.3.l '.-!2.:.; :e L.J.nif .il 1 t'•1r
PCB Subr:u:ted ty :::e State of iJcr:h C<'.lrul.:.na
TO· Jo~'1 c. ~·1h.!.te
Regier.al Adr.u..'1.is~ra:or
:!-'.e State of Nor"":h Carolina subm.1tted nn apr,l~c:ition for the approval
of a c!isi:osal site in Warr-en County, North C.."u•olina on Dece:iber-12, ~978.
The Tec.r..nical review has been performed. Th~ results of applying the
criteria found 1.'1 FR 761.41(b) to the a.ppl1c:-it1on are a::; follows :
(b) (1) Soils -~e site 1s not 1n a "thick, relati•,ely !..i:pem~able
fonnat1on zuch as la~e-area clay p.'.il'1.::. '' Therefore, the soi:s are evaluat
on the following criteria;
" Required ?rooo3ed
(1) Soll Uner tr.J.ckness 3 ft. (cgnpacted) 5 ft. (canpacted)
(11) Pe~abil1ty (o:vsec) lXlo-7 or 6.8'.(10-8 OC'
(0.0000001) co.opooooo68)
(1+1) Percent Soll Passing ~ 30 75 Ave.t:"age
No. 200 Sieve
(1v) Liquid Limit 2, 30 51 Average
(v) Plas t1c1 ty Ir..dex ~ 15 l.8 Average
(vi) Art1.f1c1al Liner 30 m.11. None pr-oposeo!/
1/ A waiver was requested t'or thls requirement. The pr1r.'la.1:1 Just1f1cat1on
-!'or the waiver was that tl1~ State wo11ld tn::;tead place a 10 m.11. plastic
liner "umbrella'' top on tht:! landfill covcC"t:.•d by two feet or soil which
would be seeded With gra:,s .::in:i sloped. 'l'his design woulrt minimize arr;/
rainwater 1nf1ltrat1on into the lar.d.!'111. 'l'his waiver-C"equest shJuld
be approved.
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(2) !-1yd:-clc~· -':1:e ~1te is l.ocated on :~::-~ c:--~:;t cf a r-iJ~ at l.::.t1-
tude 36,J 2D' l.3", longitude 70~ 0':)' jo" .111d !_::; ilbr)11c the 10:) ':~Jr
flood level. ':'his 1s '11:?r-if'i,:--:l by t:'.:c (J .~:. !:ie0lo-~lc:-i..l :,uc"1<~:1 ( :.:t:e
letter Gt,;:! ::ove;..ber-29, 197:3 , to ,;c':'!'.'/ -::. ?eri(!.rn). T.'ie tot:-:,.1 of
the waste will not be 50 f~et ;1JJove t-:h.! i~r:JWJti'.-7.tr.!::-. ~e r:Lin.1.r.tt-:-t
distance will be held t:, lC f-=G:: a:J,)ve th~ ~e.1..:or.cl ::~:;11 ~_:r')UI:,j,r2.tec-
table. ~e St.1te requested a ;..c1iver :·,.Jr :hl::; cr·iter!.or.. In r ;~vle'fl:.ng
the justification of th~ \\':li:::::r, I ln•,,. :.;,:ncl;..: ~e,J ::::-.at tr:e cl:i,:r liner
1n the bottc.~ of ~!1e t:-ench plu:; tt:•: 1 "'..:ier on cop of the \•a:::e •..,h.!.ch
will act as an t..-nbr-ella for-L•1filtr-::it~on pre·,entlon, plus t:-:e :;ar.hate
collection ~ystem and s1r.ip above ?J;,i i)r'!Lr,w t::e clay liner will
sufficiently protect r,ubl!c heal th ;?J:::i tr:·~ 0rr,·1romer.t fran 1•u:1~asor.able
r.sk of injury" as 3t1pulatc-J by f:.3.r•:.:!:,r·apii 76l.4l(c)(4). 'Therefore,
this waiver sr.ould be <1rmroved as r'f~-i'..!~~t;c-,J.
(3) Flood Protection -The application 3to..tcs tr~t the dlver-s.!.6n z~ructures
will be designed to diveqn the 24 hour, 25 year-runoff fr-an tlie <1ctive
poc-t1on of t:-..e lan::iflll.
( 11) Topography -The topoJroph:1 ~ t the prcpo:11:t.l slte ls low tn rode rote.
The approv·a.:. sliou.l.d be r.or.ditioned to r~!u1re all p~act1cal e~roion
prevention rea:i:.:res to be used.
(5) (1) MonitoM:-o ::yste?'..s
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a. 'Ihe application ~t.J.tes th.:it h·t::cltne ~htn. wlll be co'!.!~ctc.-J
prior to final approval. 'lr.c uppr·ova.l sooulr1 be so conJi :::toned.
b. The application states tr.at th'? sur-facP. ::tr•.:ams and the i;,::-cund-
water will be scJ:r.pled ronthl.Y l,,ir·L'1J!; op,:?rotlon. 'I''ne apprc,;-1al
should be so condi:ior.ed by r~.1rcrt·L,ig to pac-8graph 761.4l(b) (5).
c. B1-a.nnual r.x:>n1tor1r.g will qe Jone after closur~.
(11) Gr~dwate:-:-1on1tor.1ng Wells
The application states that ther.P-·.-11.11 b~ co['l.';t~;.ctrY.i an:i loc-..ated
as required. EPA starr sh.>uld vet'lfy th'= location of these 1n
the field.
~111) Water An.:uysis
The analysis for dtl.orirn.ted hydruc.::1:'bC'mS 1s re-:;uested to be
waived. The regul.at1oro were writLr.!!I Cur cu;:r;-crclal fac1lit:e:,;
\olh.ich would be <lls~sl.n,~~ or rr .. ,.ny c:Lt"t\~:~.•nt ~"1~tc:;. Since PC3 is
the only \-.71.Ste ~h1ch will t>e di:-;i.,i:;, .. : ln r.t11:. :;1!:e, t:1ere 1r. ;~o
point to rn)n1tor1f}f; ror ott~cr d1L1..w.!..::~t::.~.1 orc..1n.!.c:;. 1111;; ·,,a!v~:--
should be :i~orcw~d.
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(6) Leachate Collection
The cr-orose,j des1.rn t.ioes not show a le"lch:i..te c~l:.ect:cn .'3JZ ~~:'."! un'"':e~
the i1ner w req u1 r'=U by t!ie n:~~'U.13. t 1 on. r:..~cau::~ cf t::e ;g-:-::.:na·.-:a tet"
pr-ox1.mity 2.nd the dernori.ztro.ted pu:Jlic COCIL'.~r-n, I recanr.i:r.d that c1.
leachate collection ::;y::;::~'.l o.nd :c:;:r:ir, L•.! :r:.~.'J..lk•l 1..r.cier tl:e soil llner
to monitoc· the !..ntcgr-ity of ttc sol l l.!.nt:r-. In add.:. t Lon, the leachate
collection !j:,•s t~ above t:ie ::;oU ltn,~r :;; r.:,iud t',•: r·e:1u i.r~J wi ::: :::::,~
appro~r-iate :.:~np to provi,ie tiK' :-:-echa..'1::-:~ r.,) A-1 i0w ptr:-::,1.!",-; cut ot' ari::;
leachate collectP.d to pre·1ent ar,v :,l.~:111'~snnt: :i:,rdr:".!11::: hea1 t:..:ilc!up
on the clay liner. Therefore, th13 \·..-.ilver :..;hould noc he nnnr-c·;-:,i.
(7) Operatior.s
'!he operat1.on.::; plari subm1 ttc-<l 1:; ~:-i.: L:.:r'a1;:.:crJ wl th :h~ except :on of
the one foot of clean soll to he pi.:1c,:.-J on t~p or f 1r~ t lift r: :· .,as t~.
This clean soil 1s to be u..~j to prcwmt the t!'i.ld:s_ fran t2.k!.:-..; t)lt
contaminated soil on the wheels. TI1i~ 0r1e foot .:;honld be r·~s tr-ir.ted
to the middle 20 to 30 ffrt or th,~ t:-en~:1 r.o a:; not to pr-oVide a
shunt to the side walls :,,; · .ould any inf 11 t r~t 1cn occur. This t'~!J tri·:~
tion Will allow any 1nf1ltr:it1on to pr·ocP,~d co"m thr-or.ieh the i,;,:i::;te
to the leachate collection system which wculd lead it to the s~--::p
for pumping oot.
(8) Support~ Fac111t1es -The :;upr;nrttri;_s f~cll1tle3 are sat1:;fact0t'"'J
as described. No rrention wa3 rracte of lon:;-t~rm rra.!.nteri;,..nce of :r.e
access r-oad. 'The approval soould be condlticned to insure th:...~ all-
wea:th~r acce:.3 1s na1nt.1.1nc...•d. --