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___ __ __ ______ _
tJluMltroIUNI IHID 1laquo
DATE RECEIVED lmiddot- z2~cr2 PRDCESSOR~
il I
LOS ALAMOS LOu ALAMOS NATiONAL LADOnATOnV
ENVIRONMENTAL RESTORATION
~1IlJ Complala 011 floltls Indicatu if not appllcnblo or ilppropriltltc plan so writo loOibly
A~t~lic 0 III HX Clu middot C~lto~y f i9 CUltlOulpul C01ltocl
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Cnll~ftl~ Oi1I11buliQn llillf
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RECORD CATFGDRY_-b---_ P lur PlOurllrnmnllc 0 R for 1Iloruflcul
RECORD FILMED IYN) _10__
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Pltn Pfcldto PUIChl ntqutll npl Acln h6pm
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RECORD PACKAGE II -_shy
Record Proceliing facIIIY ER Recoru Indell FOfnl
(Side 1 01 21
I ~Iudy I Iphnr od rIipllOn 6 rOIl Plio Olhlf ________
~ middotmiddot
1
RECORD LOCATION ________ IlndiclIl lUClllio 1)1 f OIl) il nul 111noodi
tart II Comploto all flolds Indicntn if not appl1cltlblo or ltlpprOpriilO plCaso writo laoibiy Uso ER Rocord Indox Form Uochmcnt Sheet II noodod
ATIACHMENTS FILMED YN1 __--__ (Wuru ulllllthnIItlll lu lilly IJcud IIII1I1Jd71
TECII AnEMS) PIIS NOIS) ~----------~~-------
-
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LOCATION ____ ____________ IIIIdicltlu IUClilioll 01 IIllltchIIIl
ADS NOISI STRUCTURE HO(SIIMOA
tIIIImiddot1I fltlOlOl1
2( shy I Ss Olo
11111111111111111111111111111111111 10893
_________ _
________ _
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Pllrt III Com plato all fields indicnto if nOI applicablo or approprlatc plc[Jso wrilo loOil)ly Usc ER RIYCOfd Indfx Form 4 rraellmenr Sheer if ncedod
was IYOtS) DOCUMEHi TO ontCIHATOIl HAMES
-
CORRECTION lyIN)_---____ CORRECTED If_shy110 Ihl~ 0 cooelloll 10 I oeod poouuly 1)OCOHd~d1)
CORRECTION DESCRIPTION IOptionnl) _shy
REVISE__SUPERCEDE~ DHETEc=
ATTACHMENT LIST
I
ER Record Index r-orm Koyword List J ISido 1 01 2)- I
K~lYQRDS Clrclo rolovnnt KEYWORDS Irom tl10 list bolow for ER Record II _~_t_~J______ MISCELLANEOUS (List othor indoxinn crilfJria as nocussnry phwso writo logibly)
I r
1
HSWA (HIIIIIHJOUD unt - EvncuntionControllod Distribution Abandon Sollt W0910EvaluntlonCoroClIdmlumAboleoround Tnnk AmunltIllunlu)EvaporatorCorroctlvo ActionCnlssonAbsorption HydrolooYExcnvCltlonCorrospondenceCalibrationAbstract HygienoExclusionCritoriaCunyonACClllorator
ExhnustCapacitorAccoss ImplomontiltlonExporimontDotaCnustlcAccldont ImplosionExplosivoCEAHP lCohulI~ivuAccunluilltion Impound mont Ellvrollllont~l Asuo~OI1 EXlJosuroAcid Inactive11m) fl091lU15 PuUllIInl ExtonslonActivo IncinoflJtorComont ExtrnctionAdmlnistrotlvo IndustrialCEHCLA Dccontilminil lionADS (clvllv Dill Shout) (Comprohonsivl) Injection Wull FacilityDuicicncyAdsorption lvlrurHllUlIllIl RO~1I01l~0I InorganicFarmDolivorablcsCOlllPUII~lIl1un 1111ltAlC (Iomlc EnOllllV InspectionLlIILJillly Acll FAXConoml~llul Domolition
InstullatlonCortificntionACrllll FonceDescription IntorimCQslumAgondll FieldDotlctlon Intorim Action ChalnmiddotofmiddotCustodyAgrooment IntornalChnmlJor(8[j) IntE1rvlowChango Control Alpha FIMAD (Fllcilily lUI InventoryI(ollllIlion MIIlOrtl~I
rtnlyulu IIIIt ()i~flIIlY Chango Ordur Amorlclum
InvostigationChDrgoAnJlysis IRM IInlritrl flurnnululFindinoCh[lrtAnolytlcal DO E 10)IIrlnwlll 01 MIWUIIFiroEMIUY)ChecklistAOC (AI~n 01 CorllII) IsotopoFiring Sito 000 (011111 QUlllilyChumlco)provol IWP lIglnllltlloli 1lulk Plnn)FiscalOLJjoclv~ulChromIumQuiror
Five Yenr Plall DraftClollnupARAR (AppllcuLJI Lilb JobFlowch)r~Dr[llnagoRIVltn1 or AIlIlIOlJlut~ Clourancc Lnboriltorynlllull~rll~IlI1 FluidDrainlinoClothing LaooonFormArchuoloG DrnwinoClosuro LandArchlvo FrameworkDrillingCMIIRA ICulIlIclivo LilndlillArlJn FrucDrop Towar MllnHIIOU LilundryII IIpldegII lonl II tionIH I 111001111 IualArsonic Drum
Acllun LaachAsbostos Dry Wall CMSFS (CurroctivlI LeadAlphalt GllrnmilDump
MOIIKUI1J9 Sluuvl LunkAssossment GnsDunlicillusFuoilrillty Stul) Lonnlbullbull oo AultJi GenerationCommunt Lotterbull _ o o bullbullbullbull o_ GenericEcologyComlltiltoo limitB1clorin GeoclwmislryEffluontCommunltv Roliltions L1noiBtriurn GoologyEI S UlVirolllllulllrllllllllllctComplianco liquid511l10rllrlillBasolino Goophv 5ics Comprussod Gns ListEmissionBCP 1011110 ChnnUII Glnss I3renker Complitor Modolino LogPro)Jo~1J1l Englneorlng Glove Box Computer OulPut LogbookBods En vIrollUlllUP GrnphConcorn o bull o o bull o Oormod Aroa EPA IEvirolllllonl1 GuidancoConcroto Plotoctiull AUuncy)OOfyllium MagazlnoGunConcurronco EQuipmont -nnallomorlDOeln bull ooo oo o o o o o
Configurntion ERDA IEllalOV RonlchBiology MnnholampHnndiinoComgttruc lion nnd l)vultIIIInl MapIJlnnk l4l~rdousAtlllinl ~ II Il 110111Contnlnar MiltorialBolor I~ErosionContlllnmcl1t MDA (Mlltolllll Di~1l0NnlHE (HiUh for-pluivErrorntnmlnant AruntHistoryESampH (~IIVIIOIIIIIUlltContract ModinHoloSlIluly u HUliithlControl MoolingHorne Owner Estimntu llllwCOOfIl 1nJ q4m 9fd llQl
bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull
ER Rocord Index Form Iltoord Ust
OSHA (OccupnllonoM(mo Sulety amp HanUhMercury Atlrnlnllr ollon)
Motal OU IOpllloblo Unit)Microform
OutfltllJMinimization Outline Minutes MIS (MllnnQomerl PAAFA (PrellmlnnryInlorrnntlon System)
d W t ADle~onlUnl IlCIlAMI xe a Q FocllllY AeleBMlOnl) MOA (Memo 01 AgrClomonl PCB IPolychorlnnletl Modol Modification Mon(y (Alloenllonbull
Approprilltlon Buduolbull Coal Fundinu oIC)
MonitorinyMonthly Roport MortLlr Impact Area MOU (Meno or
Undorulondlno) MSA Major SYftlem
AcqulolllClnl
NEPA INnllonol Invironrl1onlol Policy Icl)
NFA INo FUllhor Aclion) Nltmto NMED INow Moxlco
environmenlal Dlvinlun) NMEID (Ne Mexico
Environmenlal Inproomunl Dlviolon)
NOD (Nollcd 01 Duflcioncy) Nonmiddotoxplosivo Notebook Notif iClllion NPOES (Nnllonnl pollulllnl
DlaehurgD Ellrnlnnllon Synlom)
NRC (NuclOllr Rouulolory Cornn~810n)
Nuclear Observation Offmiddotgas 011 Open Opon Burning Operation Order Oroanlc Orl)anizHion
Biphonyl) Permit Parsonal Notes Porsonnal Personnel Qualification ~ hoto Plot StudY PipePit Plan PI LInt Plutonium
Pollution Polonium Polaroid Potontinl Presentation Proventlon PrioritY Proceduro Program Programmatic Project Project Loader Propellant Property Proposal Protection Protocol PAS (Polanllnl RuiaUbU
Silo) Public Pump Purchase ICQuest
QULllity OA tCUIIIIly Auournnco) QP ICunllw Procduro) Quartorly Roport
Rodloactivu Radiochemistry
Rlldlonuclldo Rationalo RCRA IRouourco
COn6ll1vollun lind rloeovorv Acll
Roactor Rocalpt
Acknowledgment Rocommendation Reconnaissance I~ocords Hocovory Rocyclo Roduction Reforence Rugulation Holoaso Romodiation Removal Report Request Requirements Reseorcl I~csin Bed Rosolutlon Resourco Responso I~estoratlon I~ostriction
Retults Reviow Revision AFIJRI (lICHA FllcrlilY
Invo 11 unIi onHolllQdlul Irlloolllllllioll)
Ri~k RPr- IRlJcoldu IIUCOllulllU
Fnciliy) SafolY StJlamander SlIlvago Sample Satnplino Plan Sanitary Satellite SCll0duiu Scope Scmlgt OUlonation Sito Scroening Scrubber Security Seep
Sominar Semivolatilo Septic Sower Shaft Shell Shot Silvor Site Sludge Soil Solid Solvent SOP IHndnrmiddotJ Opofnlinu
Irocodurotl SOW (Sllel1lonl (It icopn
ofWr) Specillc Spill Slllck Stcndord Sllltistics Steamline sectloel SJoraDc~ Strontium
lt ~ructurl gt
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StudY Subcontractor Subsurfaco SummtJry SUlnp Supporr Surfnce Survoillanco-- Survc Swipo SWMU liolitl uul
Mnr1I0Dmlll11 Urlill SyslUm
Tank Task TCLP Toxicil
Chlllllclorielic L~lIchlllll Pfocodurol
TOO ITJchnicnl Documenl Doncllptioll)
Tocllnicul Tecllnical Team Tocllnoloo V Telephone Record Test Area
(Side 2 01 2) Testing TLO IrorcluM~rconl
Doil1l~lrrl
TOC (Toblo of Conlonlu) Townsi( Toxic Tracking Traininl) TrLlncriplion Tranler TrOlnslormcr Trll nsport Treatment Trench Trip Hepor Tritium TRU (Trn~urnnic)
TSCA ITo)re 5ulllllnncor Conllol Acll
Tuballoy Tuff
Underoround Urnnium Uri no USGS (Unll~tl Inlen
G~olouicnl ur~)
UST IUrderO(lund ilorollo Tnnl-tli
Utility Validation Varillnce VE IVllruo (1lIIIn~~111 V(lltillltion Vorilicnticl1 Video Volatile Volume Wnrohousc
W~ WIlier VI3S (Wor (3rIIII-UOIIII
lIocluto) Weapon ell Work Working Group
Zinc
los A l afll~
L - 047- S ER Record I 0 11 OOObLtf I
LAmiddot9047middotMS
UC-70 Issued November 1981
The Decommissioning of TA-21-153
A 227 Ac Contaminated Old Filter Building
Johnny A Harper Raymond Garde
l1J(cS If n01rnnl1J~ LosAlamos National Laboratory 0)~ ~UC9JU u U 0)~ Los AlamoSNew MeXICO 87545
TilE DECOHHISSroNING OF 1-21-153 7
AI ONTANINATEfJ llLll FIl TER BUILllIl
by
ABSTRACT
217 An ex a st ir fil er hUlldlng o ntami ated with - Ac w~s decommissioned rj he Los Alamos Na ti nal Laboral-I)ry Los Alamos N~w M ~ leO n 1978 The blJilding was c(nstrwcted in the 1a e 19~Os to clean exhaust air from
TA - l DP ~tp t was 11 lerV1CPT
un 11 Mar ch j I Th project nvolv ~ reliminay deeon a ination
Lsman ling he bllliding and bLlrYlr1g he debris -It an on-sitp wast d i sposals 0 age area
This repor t pr esents he rj eta i Is on the de ommissionshylng procedJ1 es the health physics I the waste management the enJironmtnmen 81 SHvpillancp and osts fo the or r a 1 on
I INTRODUCT
Tn he late 1940s a f11 er btl Idlng was cons r ucted at the Los A amos
Natlonal Labora 01 y Los Alamos Npw Mexico to c l ean the xhallst ai r from
several bUll lngs at T chnicl Arpa (TA )-21 DP East S le o The structure
designated as TA-21-153 [Fig ) ~o nststed o f 2
a a tlyenJ-sro-y fl am and ~ilsonary bJl l ln8 (Fig 3 2 a n 3 ) wlth 200 m of 2
gr und floor ara and 811 m of serono story floor ar a
h 2 llnea l meters -f me a1 d ud (flg 4)
C an ltionai plnllll f1Ler lous1n~s Wl t el ct omatic filters (Fig
5) anel
d Iyen blowers and we sack
2and 10) Onl y 0 3 dsscm of alpha activi y was detec _d inside h blolers
and Stacks
T~ dr y fil te r ( Fig 11) wer r emoved No alpha activi y wa3 d_tected
prob-ably because they had been installed a f ter he ftlter buddIng was no longer
in operat i on during a precleaning operation in 1970 Access doors were cut into
the prec l pitator frames (whic h housed the dry iller to ex pose the
elect rornatic fil ters (FIg 12) These fil ter s wet P lJt lnto sect io said spr ay 2
painted pri or to remo v ~l The maXlmum alpha actlvlty de ected wa$ 12 dlsscm
The transi ional plenlll11 was lsolated from the hUll1ing T s inter lor
sheet lock walls were 5 ripped an placed 1 0 p l astIc-lined cardboard boxes (Flg
13) The surface were painted The extenor LlI faces of h blow room and
the tranSl tional plenum ( Fig 14) w r e manLlally str ipped of theIr asbps~os
t r ans ite siding The rema inlng sheet rock walls 0 the ransl~ional plenum were
remove A chain saw was used to sever the blowpr room (Fig 15) ind the
transi 10nal p l e n um f om t he buildIng pr oper t then a frtln -end 10lder was used
to collapse t h e structur es (Figs 16 and 17) Water was uspd for d u con 01
The enso i ng ubble was loaded Int o plastic-lined dLfllp trucks (FIg 18)
For protec lon of the war kers du r ing the next ph~s a second hIgh
efr~cienc y fl1 tered vent lation system WI h an auflow r ate of 19 m 3s was
co nnected to the bUIld i ng (rIg 19) The r emalnlng electromatl f11 ters in ljP
the bLlilding were removed in plas ie-lined cardboard boxes and bar elS -he 2
maximum alpha actllity detected was 12 dls5cm on the ground floor ~o acti v ity could b detected i n the seoond stoy
The building interior was mopped with w~ er anr lrrl Y rjln d Fig 20
Asphal mi x d with latex paint was pouted lnto all dral llnes The 1loors were
coated wl t h 1 25 em a he muture EXCIIlinatio n of the bUllhng intenor
i ndicated no detectable alpha activity and the a1rbor ne contamination was (for
the f irst time d ur lng the operat o n ) lower th n he max im m perml 551 ble
concent r ation val ues
The build i ng was razed with a bul ldoze (Figs 21 and 22) and a front-end
l oader
Me 81 structures we r e cu t into manageable pieces with torch s for eas of
transpor t The debris was sent to the radioactive wste disposalstorage site
I n plasti c - lined tarpaulin-covered dtJrlp trLlcks (Fig 23) Contamlnated oil
was remove i a s i milar manner
IV WASTE MANAGEMENT
All wastes generated by t hlS operation were br1P middot 1n shallow Plts
( F g 214) at the Laboratorys radioactIve waste disposalsto(a~e S1 TI-51~
located 14 km ltrom he decommissionlng si t e Was =5 cons is ing or 66~ m~ of
b Ild11S debris and 285 m3 of contarnlnate oil wer dlSPOS d 0- in tllls manlier
All was S were t ansport doh dIsposal SIt 1n a au In-c()vnred tilTH
or flat-bed trucks Trucks loaders and bLllldozets lled to oad r ransmiddot)rt
contaminated materials were moni tor ed durIng e job and derontamin Prt
necessary Washing with water was suffic i e n t 0 r fmove ~)- conamiralfn
V ENVIRONMENT AL S URVEILLANCE
The Labora ory s EnvHonmental Surveilianc I( ur- ~lonitored t ll oPIj 1
with its rOLl ine air sCITlpllng ne work 3 (Tabl I) FOur of hf nf rby ~iJTlPl~ middot 1 t middot I d f 227A d t d d T bl IIIs t a t Ions were se ec Ive y exanll ne or c an 13 eca y 3olgnter Cl bull
Filter papers from he 25 s~ple locations we e colI c ed wepkly and malY2~rj
after a 7-10 day de cay pe lad Jo mea3oltable elpvA ion in gross alpha a~llVl v
was detec ed dw 109 the perlod of de omrnsslonlng
When decommlsSlonlng pe rsonne thought th
nJl ronrn n al group sam pl d the drpa f r Cflnflrr ncF A vaJ I ~jn fJ1 grn
alphagm of soil (th det etlan 11m it of thp Laboratoty s Z~lS ~ros ll~wj
2meaSurement system wa3 determinerl to be as low as prac lCClhle (lLAP) T J(
Labolato ys Health D vision Office and the Los Alamo Area rCfi 0 tn
Department of Energy concur red (Appendix)
The area was contour ed and reveg_tat ed with natIve g rasses (FlP 2~)
J I COST
Th ploject required 102 working rlays ( ver 6-month per ) ) and
cost of $276 300 Stlbcontr ae or manpower and qul pnent (Tabl In) C(l~ oJ I
$188 500 Laboratory costs for he a th hYSlcw and management werp pR7 FO)
po
TABLE 11
AIR SAMPLI G RESULTS FOR TA-21 - 153 OPERAT10NS
_-orn 5 ~ bull Dr E t ~TPe L~ AI rpos rt II re I III re
1 3 middot 0Q 1 ~ bull O Q o~ bull D 2 1 ~ 03 147 19 150 - 20 66 - ~ I_a bull 1 Q
1 9 - O S 18 - 0 1 O 6C 1 I - o lt
190 ~ 20 90 1 20 86 1 11 180 - 20
50 J e OB bull 0 3 1 8 0 5 I gt bull O~ 6 bull 0 middot 170 - 20 190 20 107 = 1U 160 ~ 20
508ns 2 5 + 06 0gt bull O ~ O10~ 0 bull D 5Z - 12 11 _~O - I 6 l
55n8 20 bull 05 1 1 0 n - ~3 09 bull Di no ~ O 80 20 06 = I 17 1 q
t22n8 0 7 bull O tt bull 0 oe bull 0 bull 1 ~ ~ I
17 1 lt1 no )0 110 10 230 JD
61Osn8 0 9 middot 0S 0 5 0 3 D q bull O If 08 95 JO 5 10 72 1 18 I - ~
611zna 3 o ~ 18 bull 0 5 I bull O ~ 2 bull D~ 260 )0 139 18 - P 160 ~ 0
n o 20 bull 05 1 a bull D 1 bull o~ ~5 ~ IOU 20 0 I) H -
707176 1 5 bull D9 36 bull 0shy bull 0 3 62 ~ ISO 20 ~l - ~
7111178 1 9 bull O ~ 2- + 0 7 2~ o~ 151 19 180 20 18
7124n8 0 6 bull 0 2 0 Q2 middot 019 D 02 0 bull I) 17 00 ~J -Q gt~
bull bull 0 10 bull 0 ~ bull o ~ ~ - b~6 3 S
an 178 15 bull o 1103 1 bull 0 3 6 l OJ bO fj
BIJlnS o I Ii bull l 5 5 ~ 0 S 52 ~
5 - 1 2 120 bull 1 250 ]0
9()517a 58 1 T2 bull 03 8 - I
9118178 2~ bull 0 6 3 I bull 07 2 0 bull ~ 5
U) 1 6 4 s u
OJ l ns ~O bull Ct 12 bull O b 16 bull 0 5 15 o ~ gt2 ~ 7 116 bull 6 ~O 5 SZ
G e aho d no middot 1lt1lnol o f ctln1lt1t or It 1 PdJale du hterbull
Alcorn Stut 1 Opp rOIlIl Dlon II 4
ly 2250 bullbullu or DecaamiSlshy
bUK lJ Ippro Ionlng SltA
laotIy 12S0 outh t or OeeaI1~ -
degOP tast Se Trua t 350 north wesL or lite
Phn (ST P) 10 lu lonln Slle
approu ely
~U ~ 1 rpo rt t alPro lat ~ 1 ~ 501) SOltit- tJLhe n or IItc usloli Sl tf
7
l
1
I I 1
~~-J _ _ ___ ---0
- 1--shy 1 -
(J i t middot T
F1g 1 L-2 L or CAs t r -
Fig J T i South r l eva t ioo TA-21-1 3 Il I l
Fl~ Tr a nsit ional pJ num a ter duct f_rnovaL
fi 7 T mporary f II trd middotmiddothJUSL vstem for I ansition L ~lmiddotnllrn
fig L Fill 10 Rt1I1ovll of tJCk Packag ing f ftack
11
Pig 15 Fig 1tl Separnion )r 1 ~ bullr 1 om fro) Cnl1ip~ln$ thegt hlovr I Jr building
Fig 17 r 11aps j nc he I r~n iri0nnl plvnu~
fl 1 R in fOr IsLd inr dllSl 11 It r I
1
Fig 2 -i bull Loa il~ of d ~r15 TypicaJ burial ~t ~adLoactiv
) 5 c J lt po 1 I
Fi 25 Rehabill tated s tee
11
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
~HII
Pi A-3 Poslconloucing 5 mpling resull~
_________ _
________ _
II 11M vd Itldn I~id 1ol~
Pllrt III Com plato all fields indicnto if nOI applicablo or approprlatc plc[Jso wrilo loOil)ly Usc ER RIYCOfd Indfx Form 4 rraellmenr Sheer if ncedod
was IYOtS) DOCUMEHi TO ontCIHATOIl HAMES
-
CORRECTION lyIN)_---____ CORRECTED If_shy110 Ihl~ 0 cooelloll 10 I oeod poouuly 1)OCOHd~d1)
CORRECTION DESCRIPTION IOptionnl) _shy
REVISE__SUPERCEDE~ DHETEc=
ATTACHMENT LIST
I
ER Record Index r-orm Koyword List J ISido 1 01 2)- I
K~lYQRDS Clrclo rolovnnt KEYWORDS Irom tl10 list bolow for ER Record II _~_t_~J______ MISCELLANEOUS (List othor indoxinn crilfJria as nocussnry phwso writo logibly)
I r
1
HSWA (HIIIIIHJOUD unt - EvncuntionControllod Distribution Abandon Sollt W0910EvaluntlonCoroClIdmlumAboleoround Tnnk AmunltIllunlu)EvaporatorCorroctlvo ActionCnlssonAbsorption HydrolooYExcnvCltlonCorrospondenceCalibrationAbstract HygienoExclusionCritoriaCunyonACClllorator
ExhnustCapacitorAccoss ImplomontiltlonExporimontDotaCnustlcAccldont ImplosionExplosivoCEAHP lCohulI~ivuAccunluilltion Impound mont Ellvrollllont~l Asuo~OI1 EXlJosuroAcid Inactive11m) fl091lU15 PuUllIInl ExtonslonActivo IncinoflJtorComont ExtrnctionAdmlnistrotlvo IndustrialCEHCLA Dccontilminil lionADS (clvllv Dill Shout) (Comprohonsivl) Injection Wull FacilityDuicicncyAdsorption lvlrurHllUlIllIl RO~1I01l~0I InorganicFarmDolivorablcsCOlllPUII~lIl1un 1111ltAlC (Iomlc EnOllllV InspectionLlIILJillly Acll FAXConoml~llul Domolition
InstullatlonCortificntionACrllll FonceDescription IntorimCQslumAgondll FieldDotlctlon Intorim Action ChalnmiddotofmiddotCustodyAgrooment IntornalChnmlJor(8[j) IntE1rvlowChango Control Alpha FIMAD (Fllcilily lUI InventoryI(ollllIlion MIIlOrtl~I
rtnlyulu IIIIt ()i~flIIlY Chango Ordur Amorlclum
InvostigationChDrgoAnJlysis IRM IInlritrl flurnnululFindinoCh[lrtAnolytlcal DO E 10)IIrlnwlll 01 MIWUIIFiroEMIUY)ChecklistAOC (AI~n 01 CorllII) IsotopoFiring Sito 000 (011111 QUlllilyChumlco)provol IWP lIglnllltlloli 1lulk Plnn)FiscalOLJjoclv~ulChromIumQuiror
Five Yenr Plall DraftClollnupARAR (AppllcuLJI Lilb JobFlowch)r~Dr[llnagoRIVltn1 or AIlIlIOlJlut~ Clourancc Lnboriltorynlllull~rll~IlI1 FluidDrainlinoClothing LaooonFormArchuoloG DrnwinoClosuro LandArchlvo FrameworkDrillingCMIIRA ICulIlIclivo LilndlillArlJn FrucDrop Towar MllnHIIOU LilundryII IIpldegII lonl II tionIH I 111001111 IualArsonic Drum
Acllun LaachAsbostos Dry Wall CMSFS (CurroctivlI LeadAlphalt GllrnmilDump
MOIIKUI1J9 Sluuvl LunkAssossment GnsDunlicillusFuoilrillty Stul) Lonnlbullbull oo AultJi GenerationCommunt Lotterbull _ o o bullbullbullbull o_ GenericEcologyComlltiltoo limitB1clorin GeoclwmislryEffluontCommunltv Roliltions L1noiBtriurn GoologyEI S UlVirolllllulllrllllllllllctComplianco liquid511l10rllrlillBasolino Goophv 5ics Comprussod Gns ListEmissionBCP 1011110 ChnnUII Glnss I3renker Complitor Modolino LogPro)Jo~1J1l Englneorlng Glove Box Computer OulPut LogbookBods En vIrollUlllUP GrnphConcorn o bull o o bull o Oormod Aroa EPA IEvirolllllonl1 GuidancoConcroto Plotoctiull AUuncy)OOfyllium MagazlnoGunConcurronco EQuipmont -nnallomorlDOeln bull ooo oo o o o o o
Configurntion ERDA IEllalOV RonlchBiology MnnholampHnndiinoComgttruc lion nnd l)vultIIIInl MapIJlnnk l4l~rdousAtlllinl ~ II Il 110111Contnlnar MiltorialBolor I~ErosionContlllnmcl1t MDA (Mlltolllll Di~1l0NnlHE (HiUh for-pluivErrorntnmlnant AruntHistoryESampH (~IIVIIOIIIIIUlltContract ModinHoloSlIluly u HUliithlControl MoolingHorne Owner Estimntu llllwCOOfIl 1nJ q4m 9fd llQl
bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull
ER Rocord Index Form Iltoord Ust
OSHA (OccupnllonoM(mo Sulety amp HanUhMercury Atlrnlnllr ollon)
Motal OU IOpllloblo Unit)Microform
OutfltllJMinimization Outline Minutes MIS (MllnnQomerl PAAFA (PrellmlnnryInlorrnntlon System)
d W t ADle~onlUnl IlCIlAMI xe a Q FocllllY AeleBMlOnl) MOA (Memo 01 AgrClomonl PCB IPolychorlnnletl Modol Modification Mon(y (Alloenllonbull
Approprilltlon Buduolbull Coal Fundinu oIC)
MonitorinyMonthly Roport MortLlr Impact Area MOU (Meno or
Undorulondlno) MSA Major SYftlem
AcqulolllClnl
NEPA INnllonol Invironrl1onlol Policy Icl)
NFA INo FUllhor Aclion) Nltmto NMED INow Moxlco
environmenlal Dlvinlun) NMEID (Ne Mexico
Environmenlal Inproomunl Dlviolon)
NOD (Nollcd 01 Duflcioncy) Nonmiddotoxplosivo Notebook Notif iClllion NPOES (Nnllonnl pollulllnl
DlaehurgD Ellrnlnnllon Synlom)
NRC (NuclOllr Rouulolory Cornn~810n)
Nuclear Observation Offmiddotgas 011 Open Opon Burning Operation Order Oroanlc Orl)anizHion
Biphonyl) Permit Parsonal Notes Porsonnal Personnel Qualification ~ hoto Plot StudY PipePit Plan PI LInt Plutonium
Pollution Polonium Polaroid Potontinl Presentation Proventlon PrioritY Proceduro Program Programmatic Project Project Loader Propellant Property Proposal Protection Protocol PAS (Polanllnl RuiaUbU
Silo) Public Pump Purchase ICQuest
QULllity OA tCUIIIIly Auournnco) QP ICunllw Procduro) Quartorly Roport
Rodloactivu Radiochemistry
Rlldlonuclldo Rationalo RCRA IRouourco
COn6ll1vollun lind rloeovorv Acll
Roactor Rocalpt
Acknowledgment Rocommendation Reconnaissance I~ocords Hocovory Rocyclo Roduction Reforence Rugulation Holoaso Romodiation Removal Report Request Requirements Reseorcl I~csin Bed Rosolutlon Resourco Responso I~estoratlon I~ostriction
Retults Reviow Revision AFIJRI (lICHA FllcrlilY
Invo 11 unIi onHolllQdlul Irlloolllllllioll)
Ri~k RPr- IRlJcoldu IIUCOllulllU
Fnciliy) SafolY StJlamander SlIlvago Sample Satnplino Plan Sanitary Satellite SCll0duiu Scope Scmlgt OUlonation Sito Scroening Scrubber Security Seep
Sominar Semivolatilo Septic Sower Shaft Shell Shot Silvor Site Sludge Soil Solid Solvent SOP IHndnrmiddotJ Opofnlinu
Irocodurotl SOW (Sllel1lonl (It icopn
ofWr) Specillc Spill Slllck Stcndord Sllltistics Steamline sectloel SJoraDc~ Strontium
lt ~ructurl gt
(
StudY Subcontractor Subsurfaco SummtJry SUlnp Supporr Surfnce Survoillanco-- Survc Swipo SWMU liolitl uul
Mnr1I0Dmlll11 Urlill SyslUm
Tank Task TCLP Toxicil
Chlllllclorielic L~lIchlllll Pfocodurol
TOO ITJchnicnl Documenl Doncllptioll)
Tocllnicul Tecllnical Team Tocllnoloo V Telephone Record Test Area
(Side 2 01 2) Testing TLO IrorcluM~rconl
Doil1l~lrrl
TOC (Toblo of Conlonlu) Townsi( Toxic Tracking Traininl) TrLlncriplion Tranler TrOlnslormcr Trll nsport Treatment Trench Trip Hepor Tritium TRU (Trn~urnnic)
TSCA ITo)re 5ulllllnncor Conllol Acll
Tuballoy Tuff
Underoround Urnnium Uri no USGS (Unll~tl Inlen
G~olouicnl ur~)
UST IUrderO(lund ilorollo Tnnl-tli
Utility Validation Varillnce VE IVllruo (1lIIIn~~111 V(lltillltion Vorilicnticl1 Video Volatile Volume Wnrohousc
W~ WIlier VI3S (Wor (3rIIII-UOIIII
lIocluto) Weapon ell Work Working Group
Zinc
los A l afll~
L - 047- S ER Record I 0 11 OOObLtf I
LAmiddot9047middotMS
UC-70 Issued November 1981
The Decommissioning of TA-21-153
A 227 Ac Contaminated Old Filter Building
Johnny A Harper Raymond Garde
l1J(cS If n01rnnl1J~ LosAlamos National Laboratory 0)~ ~UC9JU u U 0)~ Los AlamoSNew MeXICO 87545
TilE DECOHHISSroNING OF 1-21-153 7
AI ONTANINATEfJ llLll FIl TER BUILllIl
by
ABSTRACT
217 An ex a st ir fil er hUlldlng o ntami ated with - Ac w~s decommissioned rj he Los Alamos Na ti nal Laboral-I)ry Los Alamos N~w M ~ leO n 1978 The blJilding was c(nstrwcted in the 1a e 19~Os to clean exhaust air from
TA - l DP ~tp t was 11 lerV1CPT
un 11 Mar ch j I Th project nvolv ~ reliminay deeon a ination
Lsman ling he bllliding and bLlrYlr1g he debris -It an on-sitp wast d i sposals 0 age area
This repor t pr esents he rj eta i Is on the de ommissionshylng procedJ1 es the health physics I the waste management the enJironmtnmen 81 SHvpillancp and osts fo the or r a 1 on
I INTRODUCT
Tn he late 1940s a f11 er btl Idlng was cons r ucted at the Los A amos
Natlonal Labora 01 y Los Alamos Npw Mexico to c l ean the xhallst ai r from
several bUll lngs at T chnicl Arpa (TA )-21 DP East S le o The structure
designated as TA-21-153 [Fig ) ~o nststed o f 2
a a tlyenJ-sro-y fl am and ~ilsonary bJl l ln8 (Fig 3 2 a n 3 ) wlth 200 m of 2
gr und floor ara and 811 m of serono story floor ar a
h 2 llnea l meters -f me a1 d ud (flg 4)
C an ltionai plnllll f1Ler lous1n~s Wl t el ct omatic filters (Fig
5) anel
d Iyen blowers and we sack
2and 10) Onl y 0 3 dsscm of alpha activi y was detec _d inside h blolers
and Stacks
T~ dr y fil te r ( Fig 11) wer r emoved No alpha activi y wa3 d_tected
prob-ably because they had been installed a f ter he ftlter buddIng was no longer
in operat i on during a precleaning operation in 1970 Access doors were cut into
the prec l pitator frames (whic h housed the dry iller to ex pose the
elect rornatic fil ters (FIg 12) These fil ter s wet P lJt lnto sect io said spr ay 2
painted pri or to remo v ~l The maXlmum alpha actlvlty de ected wa$ 12 dlsscm
The transi ional plenlll11 was lsolated from the hUll1ing T s inter lor
sheet lock walls were 5 ripped an placed 1 0 p l astIc-lined cardboard boxes (Flg
13) The surface were painted The extenor LlI faces of h blow room and
the tranSl tional plenum ( Fig 14) w r e manLlally str ipped of theIr asbps~os
t r ans ite siding The rema inlng sheet rock walls 0 the ransl~ional plenum were
remove A chain saw was used to sever the blowpr room (Fig 15) ind the
transi 10nal p l e n um f om t he buildIng pr oper t then a frtln -end 10lder was used
to collapse t h e structur es (Figs 16 and 17) Water was uspd for d u con 01
The enso i ng ubble was loaded Int o plastic-lined dLfllp trucks (FIg 18)
For protec lon of the war kers du r ing the next ph~s a second hIgh
efr~cienc y fl1 tered vent lation system WI h an auflow r ate of 19 m 3s was
co nnected to the bUIld i ng (rIg 19) The r emalnlng electromatl f11 ters in ljP
the bLlilding were removed in plas ie-lined cardboard boxes and bar elS -he 2
maximum alpha actllity detected was 12 dls5cm on the ground floor ~o acti v ity could b detected i n the seoond stoy
The building interior was mopped with w~ er anr lrrl Y rjln d Fig 20
Asphal mi x d with latex paint was pouted lnto all dral llnes The 1loors were
coated wl t h 1 25 em a he muture EXCIIlinatio n of the bUllhng intenor
i ndicated no detectable alpha activity and the a1rbor ne contamination was (for
the f irst time d ur lng the operat o n ) lower th n he max im m perml 551 ble
concent r ation val ues
The build i ng was razed with a bul ldoze (Figs 21 and 22) and a front-end
l oader
Me 81 structures we r e cu t into manageable pieces with torch s for eas of
transpor t The debris was sent to the radioactive wste disposalstorage site
I n plasti c - lined tarpaulin-covered dtJrlp trLlcks (Fig 23) Contamlnated oil
was remove i a s i milar manner
IV WASTE MANAGEMENT
All wastes generated by t hlS operation were br1P middot 1n shallow Plts
( F g 214) at the Laboratorys radioactIve waste disposalsto(a~e S1 TI-51~
located 14 km ltrom he decommissionlng si t e Was =5 cons is ing or 66~ m~ of
b Ild11S debris and 285 m3 of contarnlnate oil wer dlSPOS d 0- in tllls manlier
All was S were t ansport doh dIsposal SIt 1n a au In-c()vnred tilTH
or flat-bed trucks Trucks loaders and bLllldozets lled to oad r ransmiddot)rt
contaminated materials were moni tor ed durIng e job and derontamin Prt
necessary Washing with water was suffic i e n t 0 r fmove ~)- conamiralfn
V ENVIRONMENT AL S URVEILLANCE
The Labora ory s EnvHonmental Surveilianc I( ur- ~lonitored t ll oPIj 1
with its rOLl ine air sCITlpllng ne work 3 (Tabl I) FOur of hf nf rby ~iJTlPl~ middot 1 t middot I d f 227A d t d d T bl IIIs t a t Ions were se ec Ive y exanll ne or c an 13 eca y 3olgnter Cl bull
Filter papers from he 25 s~ple locations we e colI c ed wepkly and malY2~rj
after a 7-10 day de cay pe lad Jo mea3oltable elpvA ion in gross alpha a~llVl v
was detec ed dw 109 the perlod of de omrnsslonlng
When decommlsSlonlng pe rsonne thought th
nJl ronrn n al group sam pl d the drpa f r Cflnflrr ncF A vaJ I ~jn fJ1 grn
alphagm of soil (th det etlan 11m it of thp Laboratoty s Z~lS ~ros ll~wj
2meaSurement system wa3 determinerl to be as low as prac lCClhle (lLAP) T J(
Labolato ys Health D vision Office and the Los Alamo Area rCfi 0 tn
Department of Energy concur red (Appendix)
The area was contour ed and reveg_tat ed with natIve g rasses (FlP 2~)
J I COST
Th ploject required 102 working rlays ( ver 6-month per ) ) and
cost of $276 300 Stlbcontr ae or manpower and qul pnent (Tabl In) C(l~ oJ I
$188 500 Laboratory costs for he a th hYSlcw and management werp pR7 FO)
po
TABLE 11
AIR SAMPLI G RESULTS FOR TA-21 - 153 OPERAT10NS
_-orn 5 ~ bull Dr E t ~TPe L~ AI rpos rt II re I III re
1 3 middot 0Q 1 ~ bull O Q o~ bull D 2 1 ~ 03 147 19 150 - 20 66 - ~ I_a bull 1 Q
1 9 - O S 18 - 0 1 O 6C 1 I - o lt
190 ~ 20 90 1 20 86 1 11 180 - 20
50 J e OB bull 0 3 1 8 0 5 I gt bull O~ 6 bull 0 middot 170 - 20 190 20 107 = 1U 160 ~ 20
508ns 2 5 + 06 0gt bull O ~ O10~ 0 bull D 5Z - 12 11 _~O - I 6 l
55n8 20 bull 05 1 1 0 n - ~3 09 bull Di no ~ O 80 20 06 = I 17 1 q
t22n8 0 7 bull O tt bull 0 oe bull 0 bull 1 ~ ~ I
17 1 lt1 no )0 110 10 230 JD
61Osn8 0 9 middot 0S 0 5 0 3 D q bull O If 08 95 JO 5 10 72 1 18 I - ~
611zna 3 o ~ 18 bull 0 5 I bull O ~ 2 bull D~ 260 )0 139 18 - P 160 ~ 0
n o 20 bull 05 1 a bull D 1 bull o~ ~5 ~ IOU 20 0 I) H -
707176 1 5 bull D9 36 bull 0shy bull 0 3 62 ~ ISO 20 ~l - ~
7111178 1 9 bull O ~ 2- + 0 7 2~ o~ 151 19 180 20 18
7124n8 0 6 bull 0 2 0 Q2 middot 019 D 02 0 bull I) 17 00 ~J -Q gt~
bull bull 0 10 bull 0 ~ bull o ~ ~ - b~6 3 S
an 178 15 bull o 1103 1 bull 0 3 6 l OJ bO fj
BIJlnS o I Ii bull l 5 5 ~ 0 S 52 ~
5 - 1 2 120 bull 1 250 ]0
9()517a 58 1 T2 bull 03 8 - I
9118178 2~ bull 0 6 3 I bull 07 2 0 bull ~ 5
U) 1 6 4 s u
OJ l ns ~O bull Ct 12 bull O b 16 bull 0 5 15 o ~ gt2 ~ 7 116 bull 6 ~O 5 SZ
G e aho d no middot 1lt1lnol o f ctln1lt1t or It 1 PdJale du hterbull
Alcorn Stut 1 Opp rOIlIl Dlon II 4
ly 2250 bullbullu or DecaamiSlshy
bUK lJ Ippro Ionlng SltA
laotIy 12S0 outh t or OeeaI1~ -
degOP tast Se Trua t 350 north wesL or lite
Phn (ST P) 10 lu lonln Slle
approu ely
~U ~ 1 rpo rt t alPro lat ~ 1 ~ 501) SOltit- tJLhe n or IItc usloli Sl tf
7
l
1
I I 1
~~-J _ _ ___ ---0
- 1--shy 1 -
(J i t middot T
F1g 1 L-2 L or CAs t r -
Fig J T i South r l eva t ioo TA-21-1 3 Il I l
Fl~ Tr a nsit ional pJ num a ter duct f_rnovaL
fi 7 T mporary f II trd middotmiddothJUSL vstem for I ansition L ~lmiddotnllrn
fig L Fill 10 Rt1I1ovll of tJCk Packag ing f ftack
11
Pig 15 Fig 1tl Separnion )r 1 ~ bullr 1 om fro) Cnl1ip~ln$ thegt hlovr I Jr building
Fig 17 r 11aps j nc he I r~n iri0nnl plvnu~
fl 1 R in fOr IsLd inr dllSl 11 It r I
1
Fig 2 -i bull Loa il~ of d ~r15 TypicaJ burial ~t ~adLoactiv
) 5 c J lt po 1 I
Fi 25 Rehabill tated s tee
11
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
~HII
Pi A-3 Poslconloucing 5 mpling resull~
I
ER Record Index r-orm Koyword List J ISido 1 01 2)- I
K~lYQRDS Clrclo rolovnnt KEYWORDS Irom tl10 list bolow for ER Record II _~_t_~J______ MISCELLANEOUS (List othor indoxinn crilfJria as nocussnry phwso writo logibly)
I r
1
HSWA (HIIIIIHJOUD unt - EvncuntionControllod Distribution Abandon Sollt W0910EvaluntlonCoroClIdmlumAboleoround Tnnk AmunltIllunlu)EvaporatorCorroctlvo ActionCnlssonAbsorption HydrolooYExcnvCltlonCorrospondenceCalibrationAbstract HygienoExclusionCritoriaCunyonACClllorator
ExhnustCapacitorAccoss ImplomontiltlonExporimontDotaCnustlcAccldont ImplosionExplosivoCEAHP lCohulI~ivuAccunluilltion Impound mont Ellvrollllont~l Asuo~OI1 EXlJosuroAcid Inactive11m) fl091lU15 PuUllIInl ExtonslonActivo IncinoflJtorComont ExtrnctionAdmlnistrotlvo IndustrialCEHCLA Dccontilminil lionADS (clvllv Dill Shout) (Comprohonsivl) Injection Wull FacilityDuicicncyAdsorption lvlrurHllUlIllIl RO~1I01l~0I InorganicFarmDolivorablcsCOlllPUII~lIl1un 1111ltAlC (Iomlc EnOllllV InspectionLlIILJillly Acll FAXConoml~llul Domolition
InstullatlonCortificntionACrllll FonceDescription IntorimCQslumAgondll FieldDotlctlon Intorim Action ChalnmiddotofmiddotCustodyAgrooment IntornalChnmlJor(8[j) IntE1rvlowChango Control Alpha FIMAD (Fllcilily lUI InventoryI(ollllIlion MIIlOrtl~I
rtnlyulu IIIIt ()i~flIIlY Chango Ordur Amorlclum
InvostigationChDrgoAnJlysis IRM IInlritrl flurnnululFindinoCh[lrtAnolytlcal DO E 10)IIrlnwlll 01 MIWUIIFiroEMIUY)ChecklistAOC (AI~n 01 CorllII) IsotopoFiring Sito 000 (011111 QUlllilyChumlco)provol IWP lIglnllltlloli 1lulk Plnn)FiscalOLJjoclv~ulChromIumQuiror
Five Yenr Plall DraftClollnupARAR (AppllcuLJI Lilb JobFlowch)r~Dr[llnagoRIVltn1 or AIlIlIOlJlut~ Clourancc Lnboriltorynlllull~rll~IlI1 FluidDrainlinoClothing LaooonFormArchuoloG DrnwinoClosuro LandArchlvo FrameworkDrillingCMIIRA ICulIlIclivo LilndlillArlJn FrucDrop Towar MllnHIIOU LilundryII IIpldegII lonl II tionIH I 111001111 IualArsonic Drum
Acllun LaachAsbostos Dry Wall CMSFS (CurroctivlI LeadAlphalt GllrnmilDump
MOIIKUI1J9 Sluuvl LunkAssossment GnsDunlicillusFuoilrillty Stul) Lonnlbullbull oo AultJi GenerationCommunt Lotterbull _ o o bullbullbullbull o_ GenericEcologyComlltiltoo limitB1clorin GeoclwmislryEffluontCommunltv Roliltions L1noiBtriurn GoologyEI S UlVirolllllulllrllllllllllctComplianco liquid511l10rllrlillBasolino Goophv 5ics Comprussod Gns ListEmissionBCP 1011110 ChnnUII Glnss I3renker Complitor Modolino LogPro)Jo~1J1l Englneorlng Glove Box Computer OulPut LogbookBods En vIrollUlllUP GrnphConcorn o bull o o bull o Oormod Aroa EPA IEvirolllllonl1 GuidancoConcroto Plotoctiull AUuncy)OOfyllium MagazlnoGunConcurronco EQuipmont -nnallomorlDOeln bull ooo oo o o o o o
Configurntion ERDA IEllalOV RonlchBiology MnnholampHnndiinoComgttruc lion nnd l)vultIIIInl MapIJlnnk l4l~rdousAtlllinl ~ II Il 110111Contnlnar MiltorialBolor I~ErosionContlllnmcl1t MDA (Mlltolllll Di~1l0NnlHE (HiUh for-pluivErrorntnmlnant AruntHistoryESampH (~IIVIIOIIIIIUlltContract ModinHoloSlIluly u HUliithlControl MoolingHorne Owner Estimntu llllwCOOfIl 1nJ q4m 9fd llQl
bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull
ER Rocord Index Form Iltoord Ust
OSHA (OccupnllonoM(mo Sulety amp HanUhMercury Atlrnlnllr ollon)
Motal OU IOpllloblo Unit)Microform
OutfltllJMinimization Outline Minutes MIS (MllnnQomerl PAAFA (PrellmlnnryInlorrnntlon System)
d W t ADle~onlUnl IlCIlAMI xe a Q FocllllY AeleBMlOnl) MOA (Memo 01 AgrClomonl PCB IPolychorlnnletl Modol Modification Mon(y (Alloenllonbull
Approprilltlon Buduolbull Coal Fundinu oIC)
MonitorinyMonthly Roport MortLlr Impact Area MOU (Meno or
Undorulondlno) MSA Major SYftlem
AcqulolllClnl
NEPA INnllonol Invironrl1onlol Policy Icl)
NFA INo FUllhor Aclion) Nltmto NMED INow Moxlco
environmenlal Dlvinlun) NMEID (Ne Mexico
Environmenlal Inproomunl Dlviolon)
NOD (Nollcd 01 Duflcioncy) Nonmiddotoxplosivo Notebook Notif iClllion NPOES (Nnllonnl pollulllnl
DlaehurgD Ellrnlnnllon Synlom)
NRC (NuclOllr Rouulolory Cornn~810n)
Nuclear Observation Offmiddotgas 011 Open Opon Burning Operation Order Oroanlc Orl)anizHion
Biphonyl) Permit Parsonal Notes Porsonnal Personnel Qualification ~ hoto Plot StudY PipePit Plan PI LInt Plutonium
Pollution Polonium Polaroid Potontinl Presentation Proventlon PrioritY Proceduro Program Programmatic Project Project Loader Propellant Property Proposal Protection Protocol PAS (Polanllnl RuiaUbU
Silo) Public Pump Purchase ICQuest
QULllity OA tCUIIIIly Auournnco) QP ICunllw Procduro) Quartorly Roport
Rodloactivu Radiochemistry
Rlldlonuclldo Rationalo RCRA IRouourco
COn6ll1vollun lind rloeovorv Acll
Roactor Rocalpt
Acknowledgment Rocommendation Reconnaissance I~ocords Hocovory Rocyclo Roduction Reforence Rugulation Holoaso Romodiation Removal Report Request Requirements Reseorcl I~csin Bed Rosolutlon Resourco Responso I~estoratlon I~ostriction
Retults Reviow Revision AFIJRI (lICHA FllcrlilY
Invo 11 unIi onHolllQdlul Irlloolllllllioll)
Ri~k RPr- IRlJcoldu IIUCOllulllU
Fnciliy) SafolY StJlamander SlIlvago Sample Satnplino Plan Sanitary Satellite SCll0duiu Scope Scmlgt OUlonation Sito Scroening Scrubber Security Seep
Sominar Semivolatilo Septic Sower Shaft Shell Shot Silvor Site Sludge Soil Solid Solvent SOP IHndnrmiddotJ Opofnlinu
Irocodurotl SOW (Sllel1lonl (It icopn
ofWr) Specillc Spill Slllck Stcndord Sllltistics Steamline sectloel SJoraDc~ Strontium
lt ~ructurl gt
(
StudY Subcontractor Subsurfaco SummtJry SUlnp Supporr Surfnce Survoillanco-- Survc Swipo SWMU liolitl uul
Mnr1I0Dmlll11 Urlill SyslUm
Tank Task TCLP Toxicil
Chlllllclorielic L~lIchlllll Pfocodurol
TOO ITJchnicnl Documenl Doncllptioll)
Tocllnicul Tecllnical Team Tocllnoloo V Telephone Record Test Area
(Side 2 01 2) Testing TLO IrorcluM~rconl
Doil1l~lrrl
TOC (Toblo of Conlonlu) Townsi( Toxic Tracking Traininl) TrLlncriplion Tranler TrOlnslormcr Trll nsport Treatment Trench Trip Hepor Tritium TRU (Trn~urnnic)
TSCA ITo)re 5ulllllnncor Conllol Acll
Tuballoy Tuff
Underoround Urnnium Uri no USGS (Unll~tl Inlen
G~olouicnl ur~)
UST IUrderO(lund ilorollo Tnnl-tli
Utility Validation Varillnce VE IVllruo (1lIIIn~~111 V(lltillltion Vorilicnticl1 Video Volatile Volume Wnrohousc
W~ WIlier VI3S (Wor (3rIIII-UOIIII
lIocluto) Weapon ell Work Working Group
Zinc
los A l afll~
L - 047- S ER Record I 0 11 OOObLtf I
LAmiddot9047middotMS
UC-70 Issued November 1981
The Decommissioning of TA-21-153
A 227 Ac Contaminated Old Filter Building
Johnny A Harper Raymond Garde
l1J(cS If n01rnnl1J~ LosAlamos National Laboratory 0)~ ~UC9JU u U 0)~ Los AlamoSNew MeXICO 87545
TilE DECOHHISSroNING OF 1-21-153 7
AI ONTANINATEfJ llLll FIl TER BUILllIl
by
ABSTRACT
217 An ex a st ir fil er hUlldlng o ntami ated with - Ac w~s decommissioned rj he Los Alamos Na ti nal Laboral-I)ry Los Alamos N~w M ~ leO n 1978 The blJilding was c(nstrwcted in the 1a e 19~Os to clean exhaust air from
TA - l DP ~tp t was 11 lerV1CPT
un 11 Mar ch j I Th project nvolv ~ reliminay deeon a ination
Lsman ling he bllliding and bLlrYlr1g he debris -It an on-sitp wast d i sposals 0 age area
This repor t pr esents he rj eta i Is on the de ommissionshylng procedJ1 es the health physics I the waste management the enJironmtnmen 81 SHvpillancp and osts fo the or r a 1 on
I INTRODUCT
Tn he late 1940s a f11 er btl Idlng was cons r ucted at the Los A amos
Natlonal Labora 01 y Los Alamos Npw Mexico to c l ean the xhallst ai r from
several bUll lngs at T chnicl Arpa (TA )-21 DP East S le o The structure
designated as TA-21-153 [Fig ) ~o nststed o f 2
a a tlyenJ-sro-y fl am and ~ilsonary bJl l ln8 (Fig 3 2 a n 3 ) wlth 200 m of 2
gr und floor ara and 811 m of serono story floor ar a
h 2 llnea l meters -f me a1 d ud (flg 4)
C an ltionai plnllll f1Ler lous1n~s Wl t el ct omatic filters (Fig
5) anel
d Iyen blowers and we sack
2and 10) Onl y 0 3 dsscm of alpha activi y was detec _d inside h blolers
and Stacks
T~ dr y fil te r ( Fig 11) wer r emoved No alpha activi y wa3 d_tected
prob-ably because they had been installed a f ter he ftlter buddIng was no longer
in operat i on during a precleaning operation in 1970 Access doors were cut into
the prec l pitator frames (whic h housed the dry iller to ex pose the
elect rornatic fil ters (FIg 12) These fil ter s wet P lJt lnto sect io said spr ay 2
painted pri or to remo v ~l The maXlmum alpha actlvlty de ected wa$ 12 dlsscm
The transi ional plenlll11 was lsolated from the hUll1ing T s inter lor
sheet lock walls were 5 ripped an placed 1 0 p l astIc-lined cardboard boxes (Flg
13) The surface were painted The extenor LlI faces of h blow room and
the tranSl tional plenum ( Fig 14) w r e manLlally str ipped of theIr asbps~os
t r ans ite siding The rema inlng sheet rock walls 0 the ransl~ional plenum were
remove A chain saw was used to sever the blowpr room (Fig 15) ind the
transi 10nal p l e n um f om t he buildIng pr oper t then a frtln -end 10lder was used
to collapse t h e structur es (Figs 16 and 17) Water was uspd for d u con 01
The enso i ng ubble was loaded Int o plastic-lined dLfllp trucks (FIg 18)
For protec lon of the war kers du r ing the next ph~s a second hIgh
efr~cienc y fl1 tered vent lation system WI h an auflow r ate of 19 m 3s was
co nnected to the bUIld i ng (rIg 19) The r emalnlng electromatl f11 ters in ljP
the bLlilding were removed in plas ie-lined cardboard boxes and bar elS -he 2
maximum alpha actllity detected was 12 dls5cm on the ground floor ~o acti v ity could b detected i n the seoond stoy
The building interior was mopped with w~ er anr lrrl Y rjln d Fig 20
Asphal mi x d with latex paint was pouted lnto all dral llnes The 1loors were
coated wl t h 1 25 em a he muture EXCIIlinatio n of the bUllhng intenor
i ndicated no detectable alpha activity and the a1rbor ne contamination was (for
the f irst time d ur lng the operat o n ) lower th n he max im m perml 551 ble
concent r ation val ues
The build i ng was razed with a bul ldoze (Figs 21 and 22) and a front-end
l oader
Me 81 structures we r e cu t into manageable pieces with torch s for eas of
transpor t The debris was sent to the radioactive wste disposalstorage site
I n plasti c - lined tarpaulin-covered dtJrlp trLlcks (Fig 23) Contamlnated oil
was remove i a s i milar manner
IV WASTE MANAGEMENT
All wastes generated by t hlS operation were br1P middot 1n shallow Plts
( F g 214) at the Laboratorys radioactIve waste disposalsto(a~e S1 TI-51~
located 14 km ltrom he decommissionlng si t e Was =5 cons is ing or 66~ m~ of
b Ild11S debris and 285 m3 of contarnlnate oil wer dlSPOS d 0- in tllls manlier
All was S were t ansport doh dIsposal SIt 1n a au In-c()vnred tilTH
or flat-bed trucks Trucks loaders and bLllldozets lled to oad r ransmiddot)rt
contaminated materials were moni tor ed durIng e job and derontamin Prt
necessary Washing with water was suffic i e n t 0 r fmove ~)- conamiralfn
V ENVIRONMENT AL S URVEILLANCE
The Labora ory s EnvHonmental Surveilianc I( ur- ~lonitored t ll oPIj 1
with its rOLl ine air sCITlpllng ne work 3 (Tabl I) FOur of hf nf rby ~iJTlPl~ middot 1 t middot I d f 227A d t d d T bl IIIs t a t Ions were se ec Ive y exanll ne or c an 13 eca y 3olgnter Cl bull
Filter papers from he 25 s~ple locations we e colI c ed wepkly and malY2~rj
after a 7-10 day de cay pe lad Jo mea3oltable elpvA ion in gross alpha a~llVl v
was detec ed dw 109 the perlod of de omrnsslonlng
When decommlsSlonlng pe rsonne thought th
nJl ronrn n al group sam pl d the drpa f r Cflnflrr ncF A vaJ I ~jn fJ1 grn
alphagm of soil (th det etlan 11m it of thp Laboratoty s Z~lS ~ros ll~wj
2meaSurement system wa3 determinerl to be as low as prac lCClhle (lLAP) T J(
Labolato ys Health D vision Office and the Los Alamo Area rCfi 0 tn
Department of Energy concur red (Appendix)
The area was contour ed and reveg_tat ed with natIve g rasses (FlP 2~)
J I COST
Th ploject required 102 working rlays ( ver 6-month per ) ) and
cost of $276 300 Stlbcontr ae or manpower and qul pnent (Tabl In) C(l~ oJ I
$188 500 Laboratory costs for he a th hYSlcw and management werp pR7 FO)
po
TABLE 11
AIR SAMPLI G RESULTS FOR TA-21 - 153 OPERAT10NS
_-orn 5 ~ bull Dr E t ~TPe L~ AI rpos rt II re I III re
1 3 middot 0Q 1 ~ bull O Q o~ bull D 2 1 ~ 03 147 19 150 - 20 66 - ~ I_a bull 1 Q
1 9 - O S 18 - 0 1 O 6C 1 I - o lt
190 ~ 20 90 1 20 86 1 11 180 - 20
50 J e OB bull 0 3 1 8 0 5 I gt bull O~ 6 bull 0 middot 170 - 20 190 20 107 = 1U 160 ~ 20
508ns 2 5 + 06 0gt bull O ~ O10~ 0 bull D 5Z - 12 11 _~O - I 6 l
55n8 20 bull 05 1 1 0 n - ~3 09 bull Di no ~ O 80 20 06 = I 17 1 q
t22n8 0 7 bull O tt bull 0 oe bull 0 bull 1 ~ ~ I
17 1 lt1 no )0 110 10 230 JD
61Osn8 0 9 middot 0S 0 5 0 3 D q bull O If 08 95 JO 5 10 72 1 18 I - ~
611zna 3 o ~ 18 bull 0 5 I bull O ~ 2 bull D~ 260 )0 139 18 - P 160 ~ 0
n o 20 bull 05 1 a bull D 1 bull o~ ~5 ~ IOU 20 0 I) H -
707176 1 5 bull D9 36 bull 0shy bull 0 3 62 ~ ISO 20 ~l - ~
7111178 1 9 bull O ~ 2- + 0 7 2~ o~ 151 19 180 20 18
7124n8 0 6 bull 0 2 0 Q2 middot 019 D 02 0 bull I) 17 00 ~J -Q gt~
bull bull 0 10 bull 0 ~ bull o ~ ~ - b~6 3 S
an 178 15 bull o 1103 1 bull 0 3 6 l OJ bO fj
BIJlnS o I Ii bull l 5 5 ~ 0 S 52 ~
5 - 1 2 120 bull 1 250 ]0
9()517a 58 1 T2 bull 03 8 - I
9118178 2~ bull 0 6 3 I bull 07 2 0 bull ~ 5
U) 1 6 4 s u
OJ l ns ~O bull Ct 12 bull O b 16 bull 0 5 15 o ~ gt2 ~ 7 116 bull 6 ~O 5 SZ
G e aho d no middot 1lt1lnol o f ctln1lt1t or It 1 PdJale du hterbull
Alcorn Stut 1 Opp rOIlIl Dlon II 4
ly 2250 bullbullu or DecaamiSlshy
bUK lJ Ippro Ionlng SltA
laotIy 12S0 outh t or OeeaI1~ -
degOP tast Se Trua t 350 north wesL or lite
Phn (ST P) 10 lu lonln Slle
approu ely
~U ~ 1 rpo rt t alPro lat ~ 1 ~ 501) SOltit- tJLhe n or IItc usloli Sl tf
7
l
1
I I 1
~~-J _ _ ___ ---0
- 1--shy 1 -
(J i t middot T
F1g 1 L-2 L or CAs t r -
Fig J T i South r l eva t ioo TA-21-1 3 Il I l
Fl~ Tr a nsit ional pJ num a ter duct f_rnovaL
fi 7 T mporary f II trd middotmiddothJUSL vstem for I ansition L ~lmiddotnllrn
fig L Fill 10 Rt1I1ovll of tJCk Packag ing f ftack
11
Pig 15 Fig 1tl Separnion )r 1 ~ bullr 1 om fro) Cnl1ip~ln$ thegt hlovr I Jr building
Fig 17 r 11aps j nc he I r~n iri0nnl plvnu~
fl 1 R in fOr IsLd inr dllSl 11 It r I
1
Fig 2 -i bull Loa il~ of d ~r15 TypicaJ burial ~t ~adLoactiv
) 5 c J lt po 1 I
Fi 25 Rehabill tated s tee
11
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
~HII
Pi A-3 Poslconloucing 5 mpling resull~
bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull
ER Rocord Index Form Iltoord Ust
OSHA (OccupnllonoM(mo Sulety amp HanUhMercury Atlrnlnllr ollon)
Motal OU IOpllloblo Unit)Microform
OutfltllJMinimization Outline Minutes MIS (MllnnQomerl PAAFA (PrellmlnnryInlorrnntlon System)
d W t ADle~onlUnl IlCIlAMI xe a Q FocllllY AeleBMlOnl) MOA (Memo 01 AgrClomonl PCB IPolychorlnnletl Modol Modification Mon(y (Alloenllonbull
Approprilltlon Buduolbull Coal Fundinu oIC)
MonitorinyMonthly Roport MortLlr Impact Area MOU (Meno or
Undorulondlno) MSA Major SYftlem
AcqulolllClnl
NEPA INnllonol Invironrl1onlol Policy Icl)
NFA INo FUllhor Aclion) Nltmto NMED INow Moxlco
environmenlal Dlvinlun) NMEID (Ne Mexico
Environmenlal Inproomunl Dlviolon)
NOD (Nollcd 01 Duflcioncy) Nonmiddotoxplosivo Notebook Notif iClllion NPOES (Nnllonnl pollulllnl
DlaehurgD Ellrnlnnllon Synlom)
NRC (NuclOllr Rouulolory Cornn~810n)
Nuclear Observation Offmiddotgas 011 Open Opon Burning Operation Order Oroanlc Orl)anizHion
Biphonyl) Permit Parsonal Notes Porsonnal Personnel Qualification ~ hoto Plot StudY PipePit Plan PI LInt Plutonium
Pollution Polonium Polaroid Potontinl Presentation Proventlon PrioritY Proceduro Program Programmatic Project Project Loader Propellant Property Proposal Protection Protocol PAS (Polanllnl RuiaUbU
Silo) Public Pump Purchase ICQuest
QULllity OA tCUIIIIly Auournnco) QP ICunllw Procduro) Quartorly Roport
Rodloactivu Radiochemistry
Rlldlonuclldo Rationalo RCRA IRouourco
COn6ll1vollun lind rloeovorv Acll
Roactor Rocalpt
Acknowledgment Rocommendation Reconnaissance I~ocords Hocovory Rocyclo Roduction Reforence Rugulation Holoaso Romodiation Removal Report Request Requirements Reseorcl I~csin Bed Rosolutlon Resourco Responso I~estoratlon I~ostriction
Retults Reviow Revision AFIJRI (lICHA FllcrlilY
Invo 11 unIi onHolllQdlul Irlloolllllllioll)
Ri~k RPr- IRlJcoldu IIUCOllulllU
Fnciliy) SafolY StJlamander SlIlvago Sample Satnplino Plan Sanitary Satellite SCll0duiu Scope Scmlgt OUlonation Sito Scroening Scrubber Security Seep
Sominar Semivolatilo Septic Sower Shaft Shell Shot Silvor Site Sludge Soil Solid Solvent SOP IHndnrmiddotJ Opofnlinu
Irocodurotl SOW (Sllel1lonl (It icopn
ofWr) Specillc Spill Slllck Stcndord Sllltistics Steamline sectloel SJoraDc~ Strontium
lt ~ructurl gt
(
StudY Subcontractor Subsurfaco SummtJry SUlnp Supporr Surfnce Survoillanco-- Survc Swipo SWMU liolitl uul
Mnr1I0Dmlll11 Urlill SyslUm
Tank Task TCLP Toxicil
Chlllllclorielic L~lIchlllll Pfocodurol
TOO ITJchnicnl Documenl Doncllptioll)
Tocllnicul Tecllnical Team Tocllnoloo V Telephone Record Test Area
(Side 2 01 2) Testing TLO IrorcluM~rconl
Doil1l~lrrl
TOC (Toblo of Conlonlu) Townsi( Toxic Tracking Traininl) TrLlncriplion Tranler TrOlnslormcr Trll nsport Treatment Trench Trip Hepor Tritium TRU (Trn~urnnic)
TSCA ITo)re 5ulllllnncor Conllol Acll
Tuballoy Tuff
Underoround Urnnium Uri no USGS (Unll~tl Inlen
G~olouicnl ur~)
UST IUrderO(lund ilorollo Tnnl-tli
Utility Validation Varillnce VE IVllruo (1lIIIn~~111 V(lltillltion Vorilicnticl1 Video Volatile Volume Wnrohousc
W~ WIlier VI3S (Wor (3rIIII-UOIIII
lIocluto) Weapon ell Work Working Group
Zinc
los A l afll~
L - 047- S ER Record I 0 11 OOObLtf I
LAmiddot9047middotMS
UC-70 Issued November 1981
The Decommissioning of TA-21-153
A 227 Ac Contaminated Old Filter Building
Johnny A Harper Raymond Garde
l1J(cS If n01rnnl1J~ LosAlamos National Laboratory 0)~ ~UC9JU u U 0)~ Los AlamoSNew MeXICO 87545
TilE DECOHHISSroNING OF 1-21-153 7
AI ONTANINATEfJ llLll FIl TER BUILllIl
by
ABSTRACT
217 An ex a st ir fil er hUlldlng o ntami ated with - Ac w~s decommissioned rj he Los Alamos Na ti nal Laboral-I)ry Los Alamos N~w M ~ leO n 1978 The blJilding was c(nstrwcted in the 1a e 19~Os to clean exhaust air from
TA - l DP ~tp t was 11 lerV1CPT
un 11 Mar ch j I Th project nvolv ~ reliminay deeon a ination
Lsman ling he bllliding and bLlrYlr1g he debris -It an on-sitp wast d i sposals 0 age area
This repor t pr esents he rj eta i Is on the de ommissionshylng procedJ1 es the health physics I the waste management the enJironmtnmen 81 SHvpillancp and osts fo the or r a 1 on
I INTRODUCT
Tn he late 1940s a f11 er btl Idlng was cons r ucted at the Los A amos
Natlonal Labora 01 y Los Alamos Npw Mexico to c l ean the xhallst ai r from
several bUll lngs at T chnicl Arpa (TA )-21 DP East S le o The structure
designated as TA-21-153 [Fig ) ~o nststed o f 2
a a tlyenJ-sro-y fl am and ~ilsonary bJl l ln8 (Fig 3 2 a n 3 ) wlth 200 m of 2
gr und floor ara and 811 m of serono story floor ar a
h 2 llnea l meters -f me a1 d ud (flg 4)
C an ltionai plnllll f1Ler lous1n~s Wl t el ct omatic filters (Fig
5) anel
d Iyen blowers and we sack
2and 10) Onl y 0 3 dsscm of alpha activi y was detec _d inside h blolers
and Stacks
T~ dr y fil te r ( Fig 11) wer r emoved No alpha activi y wa3 d_tected
prob-ably because they had been installed a f ter he ftlter buddIng was no longer
in operat i on during a precleaning operation in 1970 Access doors were cut into
the prec l pitator frames (whic h housed the dry iller to ex pose the
elect rornatic fil ters (FIg 12) These fil ter s wet P lJt lnto sect io said spr ay 2
painted pri or to remo v ~l The maXlmum alpha actlvlty de ected wa$ 12 dlsscm
The transi ional plenlll11 was lsolated from the hUll1ing T s inter lor
sheet lock walls were 5 ripped an placed 1 0 p l astIc-lined cardboard boxes (Flg
13) The surface were painted The extenor LlI faces of h blow room and
the tranSl tional plenum ( Fig 14) w r e manLlally str ipped of theIr asbps~os
t r ans ite siding The rema inlng sheet rock walls 0 the ransl~ional plenum were
remove A chain saw was used to sever the blowpr room (Fig 15) ind the
transi 10nal p l e n um f om t he buildIng pr oper t then a frtln -end 10lder was used
to collapse t h e structur es (Figs 16 and 17) Water was uspd for d u con 01
The enso i ng ubble was loaded Int o plastic-lined dLfllp trucks (FIg 18)
For protec lon of the war kers du r ing the next ph~s a second hIgh
efr~cienc y fl1 tered vent lation system WI h an auflow r ate of 19 m 3s was
co nnected to the bUIld i ng (rIg 19) The r emalnlng electromatl f11 ters in ljP
the bLlilding were removed in plas ie-lined cardboard boxes and bar elS -he 2
maximum alpha actllity detected was 12 dls5cm on the ground floor ~o acti v ity could b detected i n the seoond stoy
The building interior was mopped with w~ er anr lrrl Y rjln d Fig 20
Asphal mi x d with latex paint was pouted lnto all dral llnes The 1loors were
coated wl t h 1 25 em a he muture EXCIIlinatio n of the bUllhng intenor
i ndicated no detectable alpha activity and the a1rbor ne contamination was (for
the f irst time d ur lng the operat o n ) lower th n he max im m perml 551 ble
concent r ation val ues
The build i ng was razed with a bul ldoze (Figs 21 and 22) and a front-end
l oader
Me 81 structures we r e cu t into manageable pieces with torch s for eas of
transpor t The debris was sent to the radioactive wste disposalstorage site
I n plasti c - lined tarpaulin-covered dtJrlp trLlcks (Fig 23) Contamlnated oil
was remove i a s i milar manner
IV WASTE MANAGEMENT
All wastes generated by t hlS operation were br1P middot 1n shallow Plts
( F g 214) at the Laboratorys radioactIve waste disposalsto(a~e S1 TI-51~
located 14 km ltrom he decommissionlng si t e Was =5 cons is ing or 66~ m~ of
b Ild11S debris and 285 m3 of contarnlnate oil wer dlSPOS d 0- in tllls manlier
All was S were t ansport doh dIsposal SIt 1n a au In-c()vnred tilTH
or flat-bed trucks Trucks loaders and bLllldozets lled to oad r ransmiddot)rt
contaminated materials were moni tor ed durIng e job and derontamin Prt
necessary Washing with water was suffic i e n t 0 r fmove ~)- conamiralfn
V ENVIRONMENT AL S URVEILLANCE
The Labora ory s EnvHonmental Surveilianc I( ur- ~lonitored t ll oPIj 1
with its rOLl ine air sCITlpllng ne work 3 (Tabl I) FOur of hf nf rby ~iJTlPl~ middot 1 t middot I d f 227A d t d d T bl IIIs t a t Ions were se ec Ive y exanll ne or c an 13 eca y 3olgnter Cl bull
Filter papers from he 25 s~ple locations we e colI c ed wepkly and malY2~rj
after a 7-10 day de cay pe lad Jo mea3oltable elpvA ion in gross alpha a~llVl v
was detec ed dw 109 the perlod of de omrnsslonlng
When decommlsSlonlng pe rsonne thought th
nJl ronrn n al group sam pl d the drpa f r Cflnflrr ncF A vaJ I ~jn fJ1 grn
alphagm of soil (th det etlan 11m it of thp Laboratoty s Z~lS ~ros ll~wj
2meaSurement system wa3 determinerl to be as low as prac lCClhle (lLAP) T J(
Labolato ys Health D vision Office and the Los Alamo Area rCfi 0 tn
Department of Energy concur red (Appendix)
The area was contour ed and reveg_tat ed with natIve g rasses (FlP 2~)
J I COST
Th ploject required 102 working rlays ( ver 6-month per ) ) and
cost of $276 300 Stlbcontr ae or manpower and qul pnent (Tabl In) C(l~ oJ I
$188 500 Laboratory costs for he a th hYSlcw and management werp pR7 FO)
po
TABLE 11
AIR SAMPLI G RESULTS FOR TA-21 - 153 OPERAT10NS
_-orn 5 ~ bull Dr E t ~TPe L~ AI rpos rt II re I III re
1 3 middot 0Q 1 ~ bull O Q o~ bull D 2 1 ~ 03 147 19 150 - 20 66 - ~ I_a bull 1 Q
1 9 - O S 18 - 0 1 O 6C 1 I - o lt
190 ~ 20 90 1 20 86 1 11 180 - 20
50 J e OB bull 0 3 1 8 0 5 I gt bull O~ 6 bull 0 middot 170 - 20 190 20 107 = 1U 160 ~ 20
508ns 2 5 + 06 0gt bull O ~ O10~ 0 bull D 5Z - 12 11 _~O - I 6 l
55n8 20 bull 05 1 1 0 n - ~3 09 bull Di no ~ O 80 20 06 = I 17 1 q
t22n8 0 7 bull O tt bull 0 oe bull 0 bull 1 ~ ~ I
17 1 lt1 no )0 110 10 230 JD
61Osn8 0 9 middot 0S 0 5 0 3 D q bull O If 08 95 JO 5 10 72 1 18 I - ~
611zna 3 o ~ 18 bull 0 5 I bull O ~ 2 bull D~ 260 )0 139 18 - P 160 ~ 0
n o 20 bull 05 1 a bull D 1 bull o~ ~5 ~ IOU 20 0 I) H -
707176 1 5 bull D9 36 bull 0shy bull 0 3 62 ~ ISO 20 ~l - ~
7111178 1 9 bull O ~ 2- + 0 7 2~ o~ 151 19 180 20 18
7124n8 0 6 bull 0 2 0 Q2 middot 019 D 02 0 bull I) 17 00 ~J -Q gt~
bull bull 0 10 bull 0 ~ bull o ~ ~ - b~6 3 S
an 178 15 bull o 1103 1 bull 0 3 6 l OJ bO fj
BIJlnS o I Ii bull l 5 5 ~ 0 S 52 ~
5 - 1 2 120 bull 1 250 ]0
9()517a 58 1 T2 bull 03 8 - I
9118178 2~ bull 0 6 3 I bull 07 2 0 bull ~ 5
U) 1 6 4 s u
OJ l ns ~O bull Ct 12 bull O b 16 bull 0 5 15 o ~ gt2 ~ 7 116 bull 6 ~O 5 SZ
G e aho d no middot 1lt1lnol o f ctln1lt1t or It 1 PdJale du hterbull
Alcorn Stut 1 Opp rOIlIl Dlon II 4
ly 2250 bullbullu or DecaamiSlshy
bUK lJ Ippro Ionlng SltA
laotIy 12S0 outh t or OeeaI1~ -
degOP tast Se Trua t 350 north wesL or lite
Phn (ST P) 10 lu lonln Slle
approu ely
~U ~ 1 rpo rt t alPro lat ~ 1 ~ 501) SOltit- tJLhe n or IItc usloli Sl tf
7
l
1
I I 1
~~-J _ _ ___ ---0
- 1--shy 1 -
(J i t middot T
F1g 1 L-2 L or CAs t r -
Fig J T i South r l eva t ioo TA-21-1 3 Il I l
Fl~ Tr a nsit ional pJ num a ter duct f_rnovaL
fi 7 T mporary f II trd middotmiddothJUSL vstem for I ansition L ~lmiddotnllrn
fig L Fill 10 Rt1I1ovll of tJCk Packag ing f ftack
11
Pig 15 Fig 1tl Separnion )r 1 ~ bullr 1 om fro) Cnl1ip~ln$ thegt hlovr I Jr building
Fig 17 r 11aps j nc he I r~n iri0nnl plvnu~
fl 1 R in fOr IsLd inr dllSl 11 It r I
1
Fig 2 -i bull Loa il~ of d ~r15 TypicaJ burial ~t ~adLoactiv
) 5 c J lt po 1 I
Fi 25 Rehabill tated s tee
11
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
~HII
Pi A-3 Poslconloucing 5 mpling resull~
los A l afll~
L - 047- S ER Record I 0 11 OOObLtf I
LAmiddot9047middotMS
UC-70 Issued November 1981
The Decommissioning of TA-21-153
A 227 Ac Contaminated Old Filter Building
Johnny A Harper Raymond Garde
l1J(cS If n01rnnl1J~ LosAlamos National Laboratory 0)~ ~UC9JU u U 0)~ Los AlamoSNew MeXICO 87545
TilE DECOHHISSroNING OF 1-21-153 7
AI ONTANINATEfJ llLll FIl TER BUILllIl
by
ABSTRACT
217 An ex a st ir fil er hUlldlng o ntami ated with - Ac w~s decommissioned rj he Los Alamos Na ti nal Laboral-I)ry Los Alamos N~w M ~ leO n 1978 The blJilding was c(nstrwcted in the 1a e 19~Os to clean exhaust air from
TA - l DP ~tp t was 11 lerV1CPT
un 11 Mar ch j I Th project nvolv ~ reliminay deeon a ination
Lsman ling he bllliding and bLlrYlr1g he debris -It an on-sitp wast d i sposals 0 age area
This repor t pr esents he rj eta i Is on the de ommissionshylng procedJ1 es the health physics I the waste management the enJironmtnmen 81 SHvpillancp and osts fo the or r a 1 on
I INTRODUCT
Tn he late 1940s a f11 er btl Idlng was cons r ucted at the Los A amos
Natlonal Labora 01 y Los Alamos Npw Mexico to c l ean the xhallst ai r from
several bUll lngs at T chnicl Arpa (TA )-21 DP East S le o The structure
designated as TA-21-153 [Fig ) ~o nststed o f 2
a a tlyenJ-sro-y fl am and ~ilsonary bJl l ln8 (Fig 3 2 a n 3 ) wlth 200 m of 2
gr und floor ara and 811 m of serono story floor ar a
h 2 llnea l meters -f me a1 d ud (flg 4)
C an ltionai plnllll f1Ler lous1n~s Wl t el ct omatic filters (Fig
5) anel
d Iyen blowers and we sack
2and 10) Onl y 0 3 dsscm of alpha activi y was detec _d inside h blolers
and Stacks
T~ dr y fil te r ( Fig 11) wer r emoved No alpha activi y wa3 d_tected
prob-ably because they had been installed a f ter he ftlter buddIng was no longer
in operat i on during a precleaning operation in 1970 Access doors were cut into
the prec l pitator frames (whic h housed the dry iller to ex pose the
elect rornatic fil ters (FIg 12) These fil ter s wet P lJt lnto sect io said spr ay 2
painted pri or to remo v ~l The maXlmum alpha actlvlty de ected wa$ 12 dlsscm
The transi ional plenlll11 was lsolated from the hUll1ing T s inter lor
sheet lock walls were 5 ripped an placed 1 0 p l astIc-lined cardboard boxes (Flg
13) The surface were painted The extenor LlI faces of h blow room and
the tranSl tional plenum ( Fig 14) w r e manLlally str ipped of theIr asbps~os
t r ans ite siding The rema inlng sheet rock walls 0 the ransl~ional plenum were
remove A chain saw was used to sever the blowpr room (Fig 15) ind the
transi 10nal p l e n um f om t he buildIng pr oper t then a frtln -end 10lder was used
to collapse t h e structur es (Figs 16 and 17) Water was uspd for d u con 01
The enso i ng ubble was loaded Int o plastic-lined dLfllp trucks (FIg 18)
For protec lon of the war kers du r ing the next ph~s a second hIgh
efr~cienc y fl1 tered vent lation system WI h an auflow r ate of 19 m 3s was
co nnected to the bUIld i ng (rIg 19) The r emalnlng electromatl f11 ters in ljP
the bLlilding were removed in plas ie-lined cardboard boxes and bar elS -he 2
maximum alpha actllity detected was 12 dls5cm on the ground floor ~o acti v ity could b detected i n the seoond stoy
The building interior was mopped with w~ er anr lrrl Y rjln d Fig 20
Asphal mi x d with latex paint was pouted lnto all dral llnes The 1loors were
coated wl t h 1 25 em a he muture EXCIIlinatio n of the bUllhng intenor
i ndicated no detectable alpha activity and the a1rbor ne contamination was (for
the f irst time d ur lng the operat o n ) lower th n he max im m perml 551 ble
concent r ation val ues
The build i ng was razed with a bul ldoze (Figs 21 and 22) and a front-end
l oader
Me 81 structures we r e cu t into manageable pieces with torch s for eas of
transpor t The debris was sent to the radioactive wste disposalstorage site
I n plasti c - lined tarpaulin-covered dtJrlp trLlcks (Fig 23) Contamlnated oil
was remove i a s i milar manner
IV WASTE MANAGEMENT
All wastes generated by t hlS operation were br1P middot 1n shallow Plts
( F g 214) at the Laboratorys radioactIve waste disposalsto(a~e S1 TI-51~
located 14 km ltrom he decommissionlng si t e Was =5 cons is ing or 66~ m~ of
b Ild11S debris and 285 m3 of contarnlnate oil wer dlSPOS d 0- in tllls manlier
All was S were t ansport doh dIsposal SIt 1n a au In-c()vnred tilTH
or flat-bed trucks Trucks loaders and bLllldozets lled to oad r ransmiddot)rt
contaminated materials were moni tor ed durIng e job and derontamin Prt
necessary Washing with water was suffic i e n t 0 r fmove ~)- conamiralfn
V ENVIRONMENT AL S URVEILLANCE
The Labora ory s EnvHonmental Surveilianc I( ur- ~lonitored t ll oPIj 1
with its rOLl ine air sCITlpllng ne work 3 (Tabl I) FOur of hf nf rby ~iJTlPl~ middot 1 t middot I d f 227A d t d d T bl IIIs t a t Ions were se ec Ive y exanll ne or c an 13 eca y 3olgnter Cl bull
Filter papers from he 25 s~ple locations we e colI c ed wepkly and malY2~rj
after a 7-10 day de cay pe lad Jo mea3oltable elpvA ion in gross alpha a~llVl v
was detec ed dw 109 the perlod of de omrnsslonlng
When decommlsSlonlng pe rsonne thought th
nJl ronrn n al group sam pl d the drpa f r Cflnflrr ncF A vaJ I ~jn fJ1 grn
alphagm of soil (th det etlan 11m it of thp Laboratoty s Z~lS ~ros ll~wj
2meaSurement system wa3 determinerl to be as low as prac lCClhle (lLAP) T J(
Labolato ys Health D vision Office and the Los Alamo Area rCfi 0 tn
Department of Energy concur red (Appendix)
The area was contour ed and reveg_tat ed with natIve g rasses (FlP 2~)
J I COST
Th ploject required 102 working rlays ( ver 6-month per ) ) and
cost of $276 300 Stlbcontr ae or manpower and qul pnent (Tabl In) C(l~ oJ I
$188 500 Laboratory costs for he a th hYSlcw and management werp pR7 FO)
po
TABLE 11
AIR SAMPLI G RESULTS FOR TA-21 - 153 OPERAT10NS
_-orn 5 ~ bull Dr E t ~TPe L~ AI rpos rt II re I III re
1 3 middot 0Q 1 ~ bull O Q o~ bull D 2 1 ~ 03 147 19 150 - 20 66 - ~ I_a bull 1 Q
1 9 - O S 18 - 0 1 O 6C 1 I - o lt
190 ~ 20 90 1 20 86 1 11 180 - 20
50 J e OB bull 0 3 1 8 0 5 I gt bull O~ 6 bull 0 middot 170 - 20 190 20 107 = 1U 160 ~ 20
508ns 2 5 + 06 0gt bull O ~ O10~ 0 bull D 5Z - 12 11 _~O - I 6 l
55n8 20 bull 05 1 1 0 n - ~3 09 bull Di no ~ O 80 20 06 = I 17 1 q
t22n8 0 7 bull O tt bull 0 oe bull 0 bull 1 ~ ~ I
17 1 lt1 no )0 110 10 230 JD
61Osn8 0 9 middot 0S 0 5 0 3 D q bull O If 08 95 JO 5 10 72 1 18 I - ~
611zna 3 o ~ 18 bull 0 5 I bull O ~ 2 bull D~ 260 )0 139 18 - P 160 ~ 0
n o 20 bull 05 1 a bull D 1 bull o~ ~5 ~ IOU 20 0 I) H -
707176 1 5 bull D9 36 bull 0shy bull 0 3 62 ~ ISO 20 ~l - ~
7111178 1 9 bull O ~ 2- + 0 7 2~ o~ 151 19 180 20 18
7124n8 0 6 bull 0 2 0 Q2 middot 019 D 02 0 bull I) 17 00 ~J -Q gt~
bull bull 0 10 bull 0 ~ bull o ~ ~ - b~6 3 S
an 178 15 bull o 1103 1 bull 0 3 6 l OJ bO fj
BIJlnS o I Ii bull l 5 5 ~ 0 S 52 ~
5 - 1 2 120 bull 1 250 ]0
9()517a 58 1 T2 bull 03 8 - I
9118178 2~ bull 0 6 3 I bull 07 2 0 bull ~ 5
U) 1 6 4 s u
OJ l ns ~O bull Ct 12 bull O b 16 bull 0 5 15 o ~ gt2 ~ 7 116 bull 6 ~O 5 SZ
G e aho d no middot 1lt1lnol o f ctln1lt1t or It 1 PdJale du hterbull
Alcorn Stut 1 Opp rOIlIl Dlon II 4
ly 2250 bullbullu or DecaamiSlshy
bUK lJ Ippro Ionlng SltA
laotIy 12S0 outh t or OeeaI1~ -
degOP tast Se Trua t 350 north wesL or lite
Phn (ST P) 10 lu lonln Slle
approu ely
~U ~ 1 rpo rt t alPro lat ~ 1 ~ 501) SOltit- tJLhe n or IItc usloli Sl tf
7
l
1
I I 1
~~-J _ _ ___ ---0
- 1--shy 1 -
(J i t middot T
F1g 1 L-2 L or CAs t r -
Fig J T i South r l eva t ioo TA-21-1 3 Il I l
Fl~ Tr a nsit ional pJ num a ter duct f_rnovaL
fi 7 T mporary f II trd middotmiddothJUSL vstem for I ansition L ~lmiddotnllrn
fig L Fill 10 Rt1I1ovll of tJCk Packag ing f ftack
11
Pig 15 Fig 1tl Separnion )r 1 ~ bullr 1 om fro) Cnl1ip~ln$ thegt hlovr I Jr building
Fig 17 r 11aps j nc he I r~n iri0nnl plvnu~
fl 1 R in fOr IsLd inr dllSl 11 It r I
1
Fig 2 -i bull Loa il~ of d ~r15 TypicaJ burial ~t ~adLoactiv
) 5 c J lt po 1 I
Fi 25 Rehabill tated s tee
11
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
~HII
Pi A-3 Poslconloucing 5 mpling resull~
LAmiddot9047middotMS
UC-70 Issued November 1981
The Decommissioning of TA-21-153
A 227 Ac Contaminated Old Filter Building
Johnny A Harper Raymond Garde
l1J(cS If n01rnnl1J~ LosAlamos National Laboratory 0)~ ~UC9JU u U 0)~ Los AlamoSNew MeXICO 87545
TilE DECOHHISSroNING OF 1-21-153 7
AI ONTANINATEfJ llLll FIl TER BUILllIl
by
ABSTRACT
217 An ex a st ir fil er hUlldlng o ntami ated with - Ac w~s decommissioned rj he Los Alamos Na ti nal Laboral-I)ry Los Alamos N~w M ~ leO n 1978 The blJilding was c(nstrwcted in the 1a e 19~Os to clean exhaust air from
TA - l DP ~tp t was 11 lerV1CPT
un 11 Mar ch j I Th project nvolv ~ reliminay deeon a ination
Lsman ling he bllliding and bLlrYlr1g he debris -It an on-sitp wast d i sposals 0 age area
This repor t pr esents he rj eta i Is on the de ommissionshylng procedJ1 es the health physics I the waste management the enJironmtnmen 81 SHvpillancp and osts fo the or r a 1 on
I INTRODUCT
Tn he late 1940s a f11 er btl Idlng was cons r ucted at the Los A amos
Natlonal Labora 01 y Los Alamos Npw Mexico to c l ean the xhallst ai r from
several bUll lngs at T chnicl Arpa (TA )-21 DP East S le o The structure
designated as TA-21-153 [Fig ) ~o nststed o f 2
a a tlyenJ-sro-y fl am and ~ilsonary bJl l ln8 (Fig 3 2 a n 3 ) wlth 200 m of 2
gr und floor ara and 811 m of serono story floor ar a
h 2 llnea l meters -f me a1 d ud (flg 4)
C an ltionai plnllll f1Ler lous1n~s Wl t el ct omatic filters (Fig
5) anel
d Iyen blowers and we sack
2and 10) Onl y 0 3 dsscm of alpha activi y was detec _d inside h blolers
and Stacks
T~ dr y fil te r ( Fig 11) wer r emoved No alpha activi y wa3 d_tected
prob-ably because they had been installed a f ter he ftlter buddIng was no longer
in operat i on during a precleaning operation in 1970 Access doors were cut into
the prec l pitator frames (whic h housed the dry iller to ex pose the
elect rornatic fil ters (FIg 12) These fil ter s wet P lJt lnto sect io said spr ay 2
painted pri or to remo v ~l The maXlmum alpha actlvlty de ected wa$ 12 dlsscm
The transi ional plenlll11 was lsolated from the hUll1ing T s inter lor
sheet lock walls were 5 ripped an placed 1 0 p l astIc-lined cardboard boxes (Flg
13) The surface were painted The extenor LlI faces of h blow room and
the tranSl tional plenum ( Fig 14) w r e manLlally str ipped of theIr asbps~os
t r ans ite siding The rema inlng sheet rock walls 0 the ransl~ional plenum were
remove A chain saw was used to sever the blowpr room (Fig 15) ind the
transi 10nal p l e n um f om t he buildIng pr oper t then a frtln -end 10lder was used
to collapse t h e structur es (Figs 16 and 17) Water was uspd for d u con 01
The enso i ng ubble was loaded Int o plastic-lined dLfllp trucks (FIg 18)
For protec lon of the war kers du r ing the next ph~s a second hIgh
efr~cienc y fl1 tered vent lation system WI h an auflow r ate of 19 m 3s was
co nnected to the bUIld i ng (rIg 19) The r emalnlng electromatl f11 ters in ljP
the bLlilding were removed in plas ie-lined cardboard boxes and bar elS -he 2
maximum alpha actllity detected was 12 dls5cm on the ground floor ~o acti v ity could b detected i n the seoond stoy
The building interior was mopped with w~ er anr lrrl Y rjln d Fig 20
Asphal mi x d with latex paint was pouted lnto all dral llnes The 1loors were
coated wl t h 1 25 em a he muture EXCIIlinatio n of the bUllhng intenor
i ndicated no detectable alpha activity and the a1rbor ne contamination was (for
the f irst time d ur lng the operat o n ) lower th n he max im m perml 551 ble
concent r ation val ues
The build i ng was razed with a bul ldoze (Figs 21 and 22) and a front-end
l oader
Me 81 structures we r e cu t into manageable pieces with torch s for eas of
transpor t The debris was sent to the radioactive wste disposalstorage site
I n plasti c - lined tarpaulin-covered dtJrlp trLlcks (Fig 23) Contamlnated oil
was remove i a s i milar manner
IV WASTE MANAGEMENT
All wastes generated by t hlS operation were br1P middot 1n shallow Plts
( F g 214) at the Laboratorys radioactIve waste disposalsto(a~e S1 TI-51~
located 14 km ltrom he decommissionlng si t e Was =5 cons is ing or 66~ m~ of
b Ild11S debris and 285 m3 of contarnlnate oil wer dlSPOS d 0- in tllls manlier
All was S were t ansport doh dIsposal SIt 1n a au In-c()vnred tilTH
or flat-bed trucks Trucks loaders and bLllldozets lled to oad r ransmiddot)rt
contaminated materials were moni tor ed durIng e job and derontamin Prt
necessary Washing with water was suffic i e n t 0 r fmove ~)- conamiralfn
V ENVIRONMENT AL S URVEILLANCE
The Labora ory s EnvHonmental Surveilianc I( ur- ~lonitored t ll oPIj 1
with its rOLl ine air sCITlpllng ne work 3 (Tabl I) FOur of hf nf rby ~iJTlPl~ middot 1 t middot I d f 227A d t d d T bl IIIs t a t Ions were se ec Ive y exanll ne or c an 13 eca y 3olgnter Cl bull
Filter papers from he 25 s~ple locations we e colI c ed wepkly and malY2~rj
after a 7-10 day de cay pe lad Jo mea3oltable elpvA ion in gross alpha a~llVl v
was detec ed dw 109 the perlod of de omrnsslonlng
When decommlsSlonlng pe rsonne thought th
nJl ronrn n al group sam pl d the drpa f r Cflnflrr ncF A vaJ I ~jn fJ1 grn
alphagm of soil (th det etlan 11m it of thp Laboratoty s Z~lS ~ros ll~wj
2meaSurement system wa3 determinerl to be as low as prac lCClhle (lLAP) T J(
Labolato ys Health D vision Office and the Los Alamo Area rCfi 0 tn
Department of Energy concur red (Appendix)
The area was contour ed and reveg_tat ed with natIve g rasses (FlP 2~)
J I COST
Th ploject required 102 working rlays ( ver 6-month per ) ) and
cost of $276 300 Stlbcontr ae or manpower and qul pnent (Tabl In) C(l~ oJ I
$188 500 Laboratory costs for he a th hYSlcw and management werp pR7 FO)
po
TABLE 11
AIR SAMPLI G RESULTS FOR TA-21 - 153 OPERAT10NS
_-orn 5 ~ bull Dr E t ~TPe L~ AI rpos rt II re I III re
1 3 middot 0Q 1 ~ bull O Q o~ bull D 2 1 ~ 03 147 19 150 - 20 66 - ~ I_a bull 1 Q
1 9 - O S 18 - 0 1 O 6C 1 I - o lt
190 ~ 20 90 1 20 86 1 11 180 - 20
50 J e OB bull 0 3 1 8 0 5 I gt bull O~ 6 bull 0 middot 170 - 20 190 20 107 = 1U 160 ~ 20
508ns 2 5 + 06 0gt bull O ~ O10~ 0 bull D 5Z - 12 11 _~O - I 6 l
55n8 20 bull 05 1 1 0 n - ~3 09 bull Di no ~ O 80 20 06 = I 17 1 q
t22n8 0 7 bull O tt bull 0 oe bull 0 bull 1 ~ ~ I
17 1 lt1 no )0 110 10 230 JD
61Osn8 0 9 middot 0S 0 5 0 3 D q bull O If 08 95 JO 5 10 72 1 18 I - ~
611zna 3 o ~ 18 bull 0 5 I bull O ~ 2 bull D~ 260 )0 139 18 - P 160 ~ 0
n o 20 bull 05 1 a bull D 1 bull o~ ~5 ~ IOU 20 0 I) H -
707176 1 5 bull D9 36 bull 0shy bull 0 3 62 ~ ISO 20 ~l - ~
7111178 1 9 bull O ~ 2- + 0 7 2~ o~ 151 19 180 20 18
7124n8 0 6 bull 0 2 0 Q2 middot 019 D 02 0 bull I) 17 00 ~J -Q gt~
bull bull 0 10 bull 0 ~ bull o ~ ~ - b~6 3 S
an 178 15 bull o 1103 1 bull 0 3 6 l OJ bO fj
BIJlnS o I Ii bull l 5 5 ~ 0 S 52 ~
5 - 1 2 120 bull 1 250 ]0
9()517a 58 1 T2 bull 03 8 - I
9118178 2~ bull 0 6 3 I bull 07 2 0 bull ~ 5
U) 1 6 4 s u
OJ l ns ~O bull Ct 12 bull O b 16 bull 0 5 15 o ~ gt2 ~ 7 116 bull 6 ~O 5 SZ
G e aho d no middot 1lt1lnol o f ctln1lt1t or It 1 PdJale du hterbull
Alcorn Stut 1 Opp rOIlIl Dlon II 4
ly 2250 bullbullu or DecaamiSlshy
bUK lJ Ippro Ionlng SltA
laotIy 12S0 outh t or OeeaI1~ -
degOP tast Se Trua t 350 north wesL or lite
Phn (ST P) 10 lu lonln Slle
approu ely
~U ~ 1 rpo rt t alPro lat ~ 1 ~ 501) SOltit- tJLhe n or IItc usloli Sl tf
7
l
1
I I 1
~~-J _ _ ___ ---0
- 1--shy 1 -
(J i t middot T
F1g 1 L-2 L or CAs t r -
Fig J T i South r l eva t ioo TA-21-1 3 Il I l
Fl~ Tr a nsit ional pJ num a ter duct f_rnovaL
fi 7 T mporary f II trd middotmiddothJUSL vstem for I ansition L ~lmiddotnllrn
fig L Fill 10 Rt1I1ovll of tJCk Packag ing f ftack
11
Pig 15 Fig 1tl Separnion )r 1 ~ bullr 1 om fro) Cnl1ip~ln$ thegt hlovr I Jr building
Fig 17 r 11aps j nc he I r~n iri0nnl plvnu~
fl 1 R in fOr IsLd inr dllSl 11 It r I
1
Fig 2 -i bull Loa il~ of d ~r15 TypicaJ burial ~t ~adLoactiv
) 5 c J lt po 1 I
Fi 25 Rehabill tated s tee
11
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
~HII
Pi A-3 Poslconloucing 5 mpling resull~
TilE DECOHHISSroNING OF 1-21-153 7
AI ONTANINATEfJ llLll FIl TER BUILllIl
by
ABSTRACT
217 An ex a st ir fil er hUlldlng o ntami ated with - Ac w~s decommissioned rj he Los Alamos Na ti nal Laboral-I)ry Los Alamos N~w M ~ leO n 1978 The blJilding was c(nstrwcted in the 1a e 19~Os to clean exhaust air from
TA - l DP ~tp t was 11 lerV1CPT
un 11 Mar ch j I Th project nvolv ~ reliminay deeon a ination
Lsman ling he bllliding and bLlrYlr1g he debris -It an on-sitp wast d i sposals 0 age area
This repor t pr esents he rj eta i Is on the de ommissionshylng procedJ1 es the health physics I the waste management the enJironmtnmen 81 SHvpillancp and osts fo the or r a 1 on
I INTRODUCT
Tn he late 1940s a f11 er btl Idlng was cons r ucted at the Los A amos
Natlonal Labora 01 y Los Alamos Npw Mexico to c l ean the xhallst ai r from
several bUll lngs at T chnicl Arpa (TA )-21 DP East S le o The structure
designated as TA-21-153 [Fig ) ~o nststed o f 2
a a tlyenJ-sro-y fl am and ~ilsonary bJl l ln8 (Fig 3 2 a n 3 ) wlth 200 m of 2
gr und floor ara and 811 m of serono story floor ar a
h 2 llnea l meters -f me a1 d ud (flg 4)
C an ltionai plnllll f1Ler lous1n~s Wl t el ct omatic filters (Fig
5) anel
d Iyen blowers and we sack
2and 10) Onl y 0 3 dsscm of alpha activi y was detec _d inside h blolers
and Stacks
T~ dr y fil te r ( Fig 11) wer r emoved No alpha activi y wa3 d_tected
prob-ably because they had been installed a f ter he ftlter buddIng was no longer
in operat i on during a precleaning operation in 1970 Access doors were cut into
the prec l pitator frames (whic h housed the dry iller to ex pose the
elect rornatic fil ters (FIg 12) These fil ter s wet P lJt lnto sect io said spr ay 2
painted pri or to remo v ~l The maXlmum alpha actlvlty de ected wa$ 12 dlsscm
The transi ional plenlll11 was lsolated from the hUll1ing T s inter lor
sheet lock walls were 5 ripped an placed 1 0 p l astIc-lined cardboard boxes (Flg
13) The surface were painted The extenor LlI faces of h blow room and
the tranSl tional plenum ( Fig 14) w r e manLlally str ipped of theIr asbps~os
t r ans ite siding The rema inlng sheet rock walls 0 the ransl~ional plenum were
remove A chain saw was used to sever the blowpr room (Fig 15) ind the
transi 10nal p l e n um f om t he buildIng pr oper t then a frtln -end 10lder was used
to collapse t h e structur es (Figs 16 and 17) Water was uspd for d u con 01
The enso i ng ubble was loaded Int o plastic-lined dLfllp trucks (FIg 18)
For protec lon of the war kers du r ing the next ph~s a second hIgh
efr~cienc y fl1 tered vent lation system WI h an auflow r ate of 19 m 3s was
co nnected to the bUIld i ng (rIg 19) The r emalnlng electromatl f11 ters in ljP
the bLlilding were removed in plas ie-lined cardboard boxes and bar elS -he 2
maximum alpha actllity detected was 12 dls5cm on the ground floor ~o acti v ity could b detected i n the seoond stoy
The building interior was mopped with w~ er anr lrrl Y rjln d Fig 20
Asphal mi x d with latex paint was pouted lnto all dral llnes The 1loors were
coated wl t h 1 25 em a he muture EXCIIlinatio n of the bUllhng intenor
i ndicated no detectable alpha activity and the a1rbor ne contamination was (for
the f irst time d ur lng the operat o n ) lower th n he max im m perml 551 ble
concent r ation val ues
The build i ng was razed with a bul ldoze (Figs 21 and 22) and a front-end
l oader
Me 81 structures we r e cu t into manageable pieces with torch s for eas of
transpor t The debris was sent to the radioactive wste disposalstorage site
I n plasti c - lined tarpaulin-covered dtJrlp trLlcks (Fig 23) Contamlnated oil
was remove i a s i milar manner
IV WASTE MANAGEMENT
All wastes generated by t hlS operation were br1P middot 1n shallow Plts
( F g 214) at the Laboratorys radioactIve waste disposalsto(a~e S1 TI-51~
located 14 km ltrom he decommissionlng si t e Was =5 cons is ing or 66~ m~ of
b Ild11S debris and 285 m3 of contarnlnate oil wer dlSPOS d 0- in tllls manlier
All was S were t ansport doh dIsposal SIt 1n a au In-c()vnred tilTH
or flat-bed trucks Trucks loaders and bLllldozets lled to oad r ransmiddot)rt
contaminated materials were moni tor ed durIng e job and derontamin Prt
necessary Washing with water was suffic i e n t 0 r fmove ~)- conamiralfn
V ENVIRONMENT AL S URVEILLANCE
The Labora ory s EnvHonmental Surveilianc I( ur- ~lonitored t ll oPIj 1
with its rOLl ine air sCITlpllng ne work 3 (Tabl I) FOur of hf nf rby ~iJTlPl~ middot 1 t middot I d f 227A d t d d T bl IIIs t a t Ions were se ec Ive y exanll ne or c an 13 eca y 3olgnter Cl bull
Filter papers from he 25 s~ple locations we e colI c ed wepkly and malY2~rj
after a 7-10 day de cay pe lad Jo mea3oltable elpvA ion in gross alpha a~llVl v
was detec ed dw 109 the perlod of de omrnsslonlng
When decommlsSlonlng pe rsonne thought th
nJl ronrn n al group sam pl d the drpa f r Cflnflrr ncF A vaJ I ~jn fJ1 grn
alphagm of soil (th det etlan 11m it of thp Laboratoty s Z~lS ~ros ll~wj
2meaSurement system wa3 determinerl to be as low as prac lCClhle (lLAP) T J(
Labolato ys Health D vision Office and the Los Alamo Area rCfi 0 tn
Department of Energy concur red (Appendix)
The area was contour ed and reveg_tat ed with natIve g rasses (FlP 2~)
J I COST
Th ploject required 102 working rlays ( ver 6-month per ) ) and
cost of $276 300 Stlbcontr ae or manpower and qul pnent (Tabl In) C(l~ oJ I
$188 500 Laboratory costs for he a th hYSlcw and management werp pR7 FO)
po
TABLE 11
AIR SAMPLI G RESULTS FOR TA-21 - 153 OPERAT10NS
_-orn 5 ~ bull Dr E t ~TPe L~ AI rpos rt II re I III re
1 3 middot 0Q 1 ~ bull O Q o~ bull D 2 1 ~ 03 147 19 150 - 20 66 - ~ I_a bull 1 Q
1 9 - O S 18 - 0 1 O 6C 1 I - o lt
190 ~ 20 90 1 20 86 1 11 180 - 20
50 J e OB bull 0 3 1 8 0 5 I gt bull O~ 6 bull 0 middot 170 - 20 190 20 107 = 1U 160 ~ 20
508ns 2 5 + 06 0gt bull O ~ O10~ 0 bull D 5Z - 12 11 _~O - I 6 l
55n8 20 bull 05 1 1 0 n - ~3 09 bull Di no ~ O 80 20 06 = I 17 1 q
t22n8 0 7 bull O tt bull 0 oe bull 0 bull 1 ~ ~ I
17 1 lt1 no )0 110 10 230 JD
61Osn8 0 9 middot 0S 0 5 0 3 D q bull O If 08 95 JO 5 10 72 1 18 I - ~
611zna 3 o ~ 18 bull 0 5 I bull O ~ 2 bull D~ 260 )0 139 18 - P 160 ~ 0
n o 20 bull 05 1 a bull D 1 bull o~ ~5 ~ IOU 20 0 I) H -
707176 1 5 bull D9 36 bull 0shy bull 0 3 62 ~ ISO 20 ~l - ~
7111178 1 9 bull O ~ 2- + 0 7 2~ o~ 151 19 180 20 18
7124n8 0 6 bull 0 2 0 Q2 middot 019 D 02 0 bull I) 17 00 ~J -Q gt~
bull bull 0 10 bull 0 ~ bull o ~ ~ - b~6 3 S
an 178 15 bull o 1103 1 bull 0 3 6 l OJ bO fj
BIJlnS o I Ii bull l 5 5 ~ 0 S 52 ~
5 - 1 2 120 bull 1 250 ]0
9()517a 58 1 T2 bull 03 8 - I
9118178 2~ bull 0 6 3 I bull 07 2 0 bull ~ 5
U) 1 6 4 s u
OJ l ns ~O bull Ct 12 bull O b 16 bull 0 5 15 o ~ gt2 ~ 7 116 bull 6 ~O 5 SZ
G e aho d no middot 1lt1lnol o f ctln1lt1t or It 1 PdJale du hterbull
Alcorn Stut 1 Opp rOIlIl Dlon II 4
ly 2250 bullbullu or DecaamiSlshy
bUK lJ Ippro Ionlng SltA
laotIy 12S0 outh t or OeeaI1~ -
degOP tast Se Trua t 350 north wesL or lite
Phn (ST P) 10 lu lonln Slle
approu ely
~U ~ 1 rpo rt t alPro lat ~ 1 ~ 501) SOltit- tJLhe n or IItc usloli Sl tf
7
l
1
I I 1
~~-J _ _ ___ ---0
- 1--shy 1 -
(J i t middot T
F1g 1 L-2 L or CAs t r -
Fig J T i South r l eva t ioo TA-21-1 3 Il I l
Fl~ Tr a nsit ional pJ num a ter duct f_rnovaL
fi 7 T mporary f II trd middotmiddothJUSL vstem for I ansition L ~lmiddotnllrn
fig L Fill 10 Rt1I1ovll of tJCk Packag ing f ftack
11
Pig 15 Fig 1tl Separnion )r 1 ~ bullr 1 om fro) Cnl1ip~ln$ thegt hlovr I Jr building
Fig 17 r 11aps j nc he I r~n iri0nnl plvnu~
fl 1 R in fOr IsLd inr dllSl 11 It r I
1
Fig 2 -i bull Loa il~ of d ~r15 TypicaJ burial ~t ~adLoactiv
) 5 c J lt po 1 I
Fi 25 Rehabill tated s tee
11
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
~HII
Pi A-3 Poslconloucing 5 mpling resull~
2and 10) Onl y 0 3 dsscm of alpha activi y was detec _d inside h blolers
and Stacks
T~ dr y fil te r ( Fig 11) wer r emoved No alpha activi y wa3 d_tected
prob-ably because they had been installed a f ter he ftlter buddIng was no longer
in operat i on during a precleaning operation in 1970 Access doors were cut into
the prec l pitator frames (whic h housed the dry iller to ex pose the
elect rornatic fil ters (FIg 12) These fil ter s wet P lJt lnto sect io said spr ay 2
painted pri or to remo v ~l The maXlmum alpha actlvlty de ected wa$ 12 dlsscm
The transi ional plenlll11 was lsolated from the hUll1ing T s inter lor
sheet lock walls were 5 ripped an placed 1 0 p l astIc-lined cardboard boxes (Flg
13) The surface were painted The extenor LlI faces of h blow room and
the tranSl tional plenum ( Fig 14) w r e manLlally str ipped of theIr asbps~os
t r ans ite siding The rema inlng sheet rock walls 0 the ransl~ional plenum were
remove A chain saw was used to sever the blowpr room (Fig 15) ind the
transi 10nal p l e n um f om t he buildIng pr oper t then a frtln -end 10lder was used
to collapse t h e structur es (Figs 16 and 17) Water was uspd for d u con 01
The enso i ng ubble was loaded Int o plastic-lined dLfllp trucks (FIg 18)
For protec lon of the war kers du r ing the next ph~s a second hIgh
efr~cienc y fl1 tered vent lation system WI h an auflow r ate of 19 m 3s was
co nnected to the bUIld i ng (rIg 19) The r emalnlng electromatl f11 ters in ljP
the bLlilding were removed in plas ie-lined cardboard boxes and bar elS -he 2
maximum alpha actllity detected was 12 dls5cm on the ground floor ~o acti v ity could b detected i n the seoond stoy
The building interior was mopped with w~ er anr lrrl Y rjln d Fig 20
Asphal mi x d with latex paint was pouted lnto all dral llnes The 1loors were
coated wl t h 1 25 em a he muture EXCIIlinatio n of the bUllhng intenor
i ndicated no detectable alpha activity and the a1rbor ne contamination was (for
the f irst time d ur lng the operat o n ) lower th n he max im m perml 551 ble
concent r ation val ues
The build i ng was razed with a bul ldoze (Figs 21 and 22) and a front-end
l oader
Me 81 structures we r e cu t into manageable pieces with torch s for eas of
transpor t The debris was sent to the radioactive wste disposalstorage site
I n plasti c - lined tarpaulin-covered dtJrlp trLlcks (Fig 23) Contamlnated oil
was remove i a s i milar manner
IV WASTE MANAGEMENT
All wastes generated by t hlS operation were br1P middot 1n shallow Plts
( F g 214) at the Laboratorys radioactIve waste disposalsto(a~e S1 TI-51~
located 14 km ltrom he decommissionlng si t e Was =5 cons is ing or 66~ m~ of
b Ild11S debris and 285 m3 of contarnlnate oil wer dlSPOS d 0- in tllls manlier
All was S were t ansport doh dIsposal SIt 1n a au In-c()vnred tilTH
or flat-bed trucks Trucks loaders and bLllldozets lled to oad r ransmiddot)rt
contaminated materials were moni tor ed durIng e job and derontamin Prt
necessary Washing with water was suffic i e n t 0 r fmove ~)- conamiralfn
V ENVIRONMENT AL S URVEILLANCE
The Labora ory s EnvHonmental Surveilianc I( ur- ~lonitored t ll oPIj 1
with its rOLl ine air sCITlpllng ne work 3 (Tabl I) FOur of hf nf rby ~iJTlPl~ middot 1 t middot I d f 227A d t d d T bl IIIs t a t Ions were se ec Ive y exanll ne or c an 13 eca y 3olgnter Cl bull
Filter papers from he 25 s~ple locations we e colI c ed wepkly and malY2~rj
after a 7-10 day de cay pe lad Jo mea3oltable elpvA ion in gross alpha a~llVl v
was detec ed dw 109 the perlod of de omrnsslonlng
When decommlsSlonlng pe rsonne thought th
nJl ronrn n al group sam pl d the drpa f r Cflnflrr ncF A vaJ I ~jn fJ1 grn
alphagm of soil (th det etlan 11m it of thp Laboratoty s Z~lS ~ros ll~wj
2meaSurement system wa3 determinerl to be as low as prac lCClhle (lLAP) T J(
Labolato ys Health D vision Office and the Los Alamo Area rCfi 0 tn
Department of Energy concur red (Appendix)
The area was contour ed and reveg_tat ed with natIve g rasses (FlP 2~)
J I COST
Th ploject required 102 working rlays ( ver 6-month per ) ) and
cost of $276 300 Stlbcontr ae or manpower and qul pnent (Tabl In) C(l~ oJ I
$188 500 Laboratory costs for he a th hYSlcw and management werp pR7 FO)
po
TABLE 11
AIR SAMPLI G RESULTS FOR TA-21 - 153 OPERAT10NS
_-orn 5 ~ bull Dr E t ~TPe L~ AI rpos rt II re I III re
1 3 middot 0Q 1 ~ bull O Q o~ bull D 2 1 ~ 03 147 19 150 - 20 66 - ~ I_a bull 1 Q
1 9 - O S 18 - 0 1 O 6C 1 I - o lt
190 ~ 20 90 1 20 86 1 11 180 - 20
50 J e OB bull 0 3 1 8 0 5 I gt bull O~ 6 bull 0 middot 170 - 20 190 20 107 = 1U 160 ~ 20
508ns 2 5 + 06 0gt bull O ~ O10~ 0 bull D 5Z - 12 11 _~O - I 6 l
55n8 20 bull 05 1 1 0 n - ~3 09 bull Di no ~ O 80 20 06 = I 17 1 q
t22n8 0 7 bull O tt bull 0 oe bull 0 bull 1 ~ ~ I
17 1 lt1 no )0 110 10 230 JD
61Osn8 0 9 middot 0S 0 5 0 3 D q bull O If 08 95 JO 5 10 72 1 18 I - ~
611zna 3 o ~ 18 bull 0 5 I bull O ~ 2 bull D~ 260 )0 139 18 - P 160 ~ 0
n o 20 bull 05 1 a bull D 1 bull o~ ~5 ~ IOU 20 0 I) H -
707176 1 5 bull D9 36 bull 0shy bull 0 3 62 ~ ISO 20 ~l - ~
7111178 1 9 bull O ~ 2- + 0 7 2~ o~ 151 19 180 20 18
7124n8 0 6 bull 0 2 0 Q2 middot 019 D 02 0 bull I) 17 00 ~J -Q gt~
bull bull 0 10 bull 0 ~ bull o ~ ~ - b~6 3 S
an 178 15 bull o 1103 1 bull 0 3 6 l OJ bO fj
BIJlnS o I Ii bull l 5 5 ~ 0 S 52 ~
5 - 1 2 120 bull 1 250 ]0
9()517a 58 1 T2 bull 03 8 - I
9118178 2~ bull 0 6 3 I bull 07 2 0 bull ~ 5
U) 1 6 4 s u
OJ l ns ~O bull Ct 12 bull O b 16 bull 0 5 15 o ~ gt2 ~ 7 116 bull 6 ~O 5 SZ
G e aho d no middot 1lt1lnol o f ctln1lt1t or It 1 PdJale du hterbull
Alcorn Stut 1 Opp rOIlIl Dlon II 4
ly 2250 bullbullu or DecaamiSlshy
bUK lJ Ippro Ionlng SltA
laotIy 12S0 outh t or OeeaI1~ -
degOP tast Se Trua t 350 north wesL or lite
Phn (ST P) 10 lu lonln Slle
approu ely
~U ~ 1 rpo rt t alPro lat ~ 1 ~ 501) SOltit- tJLhe n or IItc usloli Sl tf
7
l
1
I I 1
~~-J _ _ ___ ---0
- 1--shy 1 -
(J i t middot T
F1g 1 L-2 L or CAs t r -
Fig J T i South r l eva t ioo TA-21-1 3 Il I l
Fl~ Tr a nsit ional pJ num a ter duct f_rnovaL
fi 7 T mporary f II trd middotmiddothJUSL vstem for I ansition L ~lmiddotnllrn
fig L Fill 10 Rt1I1ovll of tJCk Packag ing f ftack
11
Pig 15 Fig 1tl Separnion )r 1 ~ bullr 1 om fro) Cnl1ip~ln$ thegt hlovr I Jr building
Fig 17 r 11aps j nc he I r~n iri0nnl plvnu~
fl 1 R in fOr IsLd inr dllSl 11 It r I
1
Fig 2 -i bull Loa il~ of d ~r15 TypicaJ burial ~t ~adLoactiv
) 5 c J lt po 1 I
Fi 25 Rehabill tated s tee
11
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
~HII
Pi A-3 Poslconloucing 5 mpling resull~
IV WASTE MANAGEMENT
All wastes generated by t hlS operation were br1P middot 1n shallow Plts
( F g 214) at the Laboratorys radioactIve waste disposalsto(a~e S1 TI-51~
located 14 km ltrom he decommissionlng si t e Was =5 cons is ing or 66~ m~ of
b Ild11S debris and 285 m3 of contarnlnate oil wer dlSPOS d 0- in tllls manlier
All was S were t ansport doh dIsposal SIt 1n a au In-c()vnred tilTH
or flat-bed trucks Trucks loaders and bLllldozets lled to oad r ransmiddot)rt
contaminated materials were moni tor ed durIng e job and derontamin Prt
necessary Washing with water was suffic i e n t 0 r fmove ~)- conamiralfn
V ENVIRONMENT AL S URVEILLANCE
The Labora ory s EnvHonmental Surveilianc I( ur- ~lonitored t ll oPIj 1
with its rOLl ine air sCITlpllng ne work 3 (Tabl I) FOur of hf nf rby ~iJTlPl~ middot 1 t middot I d f 227A d t d d T bl IIIs t a t Ions were se ec Ive y exanll ne or c an 13 eca y 3olgnter Cl bull
Filter papers from he 25 s~ple locations we e colI c ed wepkly and malY2~rj
after a 7-10 day de cay pe lad Jo mea3oltable elpvA ion in gross alpha a~llVl v
was detec ed dw 109 the perlod of de omrnsslonlng
When decommlsSlonlng pe rsonne thought th
nJl ronrn n al group sam pl d the drpa f r Cflnflrr ncF A vaJ I ~jn fJ1 grn
alphagm of soil (th det etlan 11m it of thp Laboratoty s Z~lS ~ros ll~wj
2meaSurement system wa3 determinerl to be as low as prac lCClhle (lLAP) T J(
Labolato ys Health D vision Office and the Los Alamo Area rCfi 0 tn
Department of Energy concur red (Appendix)
The area was contour ed and reveg_tat ed with natIve g rasses (FlP 2~)
J I COST
Th ploject required 102 working rlays ( ver 6-month per ) ) and
cost of $276 300 Stlbcontr ae or manpower and qul pnent (Tabl In) C(l~ oJ I
$188 500 Laboratory costs for he a th hYSlcw and management werp pR7 FO)
po
TABLE 11
AIR SAMPLI G RESULTS FOR TA-21 - 153 OPERAT10NS
_-orn 5 ~ bull Dr E t ~TPe L~ AI rpos rt II re I III re
1 3 middot 0Q 1 ~ bull O Q o~ bull D 2 1 ~ 03 147 19 150 - 20 66 - ~ I_a bull 1 Q
1 9 - O S 18 - 0 1 O 6C 1 I - o lt
190 ~ 20 90 1 20 86 1 11 180 - 20
50 J e OB bull 0 3 1 8 0 5 I gt bull O~ 6 bull 0 middot 170 - 20 190 20 107 = 1U 160 ~ 20
508ns 2 5 + 06 0gt bull O ~ O10~ 0 bull D 5Z - 12 11 _~O - I 6 l
55n8 20 bull 05 1 1 0 n - ~3 09 bull Di no ~ O 80 20 06 = I 17 1 q
t22n8 0 7 bull O tt bull 0 oe bull 0 bull 1 ~ ~ I
17 1 lt1 no )0 110 10 230 JD
61Osn8 0 9 middot 0S 0 5 0 3 D q bull O If 08 95 JO 5 10 72 1 18 I - ~
611zna 3 o ~ 18 bull 0 5 I bull O ~ 2 bull D~ 260 )0 139 18 - P 160 ~ 0
n o 20 bull 05 1 a bull D 1 bull o~ ~5 ~ IOU 20 0 I) H -
707176 1 5 bull D9 36 bull 0shy bull 0 3 62 ~ ISO 20 ~l - ~
7111178 1 9 bull O ~ 2- + 0 7 2~ o~ 151 19 180 20 18
7124n8 0 6 bull 0 2 0 Q2 middot 019 D 02 0 bull I) 17 00 ~J -Q gt~
bull bull 0 10 bull 0 ~ bull o ~ ~ - b~6 3 S
an 178 15 bull o 1103 1 bull 0 3 6 l OJ bO fj
BIJlnS o I Ii bull l 5 5 ~ 0 S 52 ~
5 - 1 2 120 bull 1 250 ]0
9()517a 58 1 T2 bull 03 8 - I
9118178 2~ bull 0 6 3 I bull 07 2 0 bull ~ 5
U) 1 6 4 s u
OJ l ns ~O bull Ct 12 bull O b 16 bull 0 5 15 o ~ gt2 ~ 7 116 bull 6 ~O 5 SZ
G e aho d no middot 1lt1lnol o f ctln1lt1t or It 1 PdJale du hterbull
Alcorn Stut 1 Opp rOIlIl Dlon II 4
ly 2250 bullbullu or DecaamiSlshy
bUK lJ Ippro Ionlng SltA
laotIy 12S0 outh t or OeeaI1~ -
degOP tast Se Trua t 350 north wesL or lite
Phn (ST P) 10 lu lonln Slle
approu ely
~U ~ 1 rpo rt t alPro lat ~ 1 ~ 501) SOltit- tJLhe n or IItc usloli Sl tf
7
l
1
I I 1
~~-J _ _ ___ ---0
- 1--shy 1 -
(J i t middot T
F1g 1 L-2 L or CAs t r -
Fig J T i South r l eva t ioo TA-21-1 3 Il I l
Fl~ Tr a nsit ional pJ num a ter duct f_rnovaL
fi 7 T mporary f II trd middotmiddothJUSL vstem for I ansition L ~lmiddotnllrn
fig L Fill 10 Rt1I1ovll of tJCk Packag ing f ftack
11
Pig 15 Fig 1tl Separnion )r 1 ~ bullr 1 om fro) Cnl1ip~ln$ thegt hlovr I Jr building
Fig 17 r 11aps j nc he I r~n iri0nnl plvnu~
fl 1 R in fOr IsLd inr dllSl 11 It r I
1
Fig 2 -i bull Loa il~ of d ~r15 TypicaJ burial ~t ~adLoactiv
) 5 c J lt po 1 I
Fi 25 Rehabill tated s tee
11
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
~HII
Pi A-3 Poslconloucing 5 mpling resull~
po
TABLE 11
AIR SAMPLI G RESULTS FOR TA-21 - 153 OPERAT10NS
_-orn 5 ~ bull Dr E t ~TPe L~ AI rpos rt II re I III re
1 3 middot 0Q 1 ~ bull O Q o~ bull D 2 1 ~ 03 147 19 150 - 20 66 - ~ I_a bull 1 Q
1 9 - O S 18 - 0 1 O 6C 1 I - o lt
190 ~ 20 90 1 20 86 1 11 180 - 20
50 J e OB bull 0 3 1 8 0 5 I gt bull O~ 6 bull 0 middot 170 - 20 190 20 107 = 1U 160 ~ 20
508ns 2 5 + 06 0gt bull O ~ O10~ 0 bull D 5Z - 12 11 _~O - I 6 l
55n8 20 bull 05 1 1 0 n - ~3 09 bull Di no ~ O 80 20 06 = I 17 1 q
t22n8 0 7 bull O tt bull 0 oe bull 0 bull 1 ~ ~ I
17 1 lt1 no )0 110 10 230 JD
61Osn8 0 9 middot 0S 0 5 0 3 D q bull O If 08 95 JO 5 10 72 1 18 I - ~
611zna 3 o ~ 18 bull 0 5 I bull O ~ 2 bull D~ 260 )0 139 18 - P 160 ~ 0
n o 20 bull 05 1 a bull D 1 bull o~ ~5 ~ IOU 20 0 I) H -
707176 1 5 bull D9 36 bull 0shy bull 0 3 62 ~ ISO 20 ~l - ~
7111178 1 9 bull O ~ 2- + 0 7 2~ o~ 151 19 180 20 18
7124n8 0 6 bull 0 2 0 Q2 middot 019 D 02 0 bull I) 17 00 ~J -Q gt~
bull bull 0 10 bull 0 ~ bull o ~ ~ - b~6 3 S
an 178 15 bull o 1103 1 bull 0 3 6 l OJ bO fj
BIJlnS o I Ii bull l 5 5 ~ 0 S 52 ~
5 - 1 2 120 bull 1 250 ]0
9()517a 58 1 T2 bull 03 8 - I
9118178 2~ bull 0 6 3 I bull 07 2 0 bull ~ 5
U) 1 6 4 s u
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Alcorn Stut 1 Opp rOIlIl Dlon II 4
ly 2250 bullbullu or DecaamiSlshy
bUK lJ Ippro Ionlng SltA
laotIy 12S0 outh t or OeeaI1~ -
degOP tast Se Trua t 350 north wesL or lite
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approu ely
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7
l
1
I I 1
~~-J _ _ ___ ---0
- 1--shy 1 -
(J i t middot T
F1g 1 L-2 L or CAs t r -
Fig J T i South r l eva t ioo TA-21-1 3 Il I l
Fl~ Tr a nsit ional pJ num a ter duct f_rnovaL
fi 7 T mporary f II trd middotmiddothJUSL vstem for I ansition L ~lmiddotnllrn
fig L Fill 10 Rt1I1ovll of tJCk Packag ing f ftack
11
Pig 15 Fig 1tl Separnion )r 1 ~ bullr 1 om fro) Cnl1ip~ln$ thegt hlovr I Jr building
Fig 17 r 11aps j nc he I r~n iri0nnl plvnu~
fl 1 R in fOr IsLd inr dllSl 11 It r I
1
Fig 2 -i bull Loa il~ of d ~r15 TypicaJ burial ~t ~adLoactiv
) 5 c J lt po 1 I
Fi 25 Rehabill tated s tee
11
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
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l
1
I I 1
~~-J _ _ ___ ---0
- 1--shy 1 -
(J i t middot T
F1g 1 L-2 L or CAs t r -
Fig J T i South r l eva t ioo TA-21-1 3 Il I l
Fl~ Tr a nsit ional pJ num a ter duct f_rnovaL
fi 7 T mporary f II trd middotmiddothJUSL vstem for I ansition L ~lmiddotnllrn
fig L Fill 10 Rt1I1ovll of tJCk Packag ing f ftack
11
Pig 15 Fig 1tl Separnion )r 1 ~ bullr 1 om fro) Cnl1ip~ln$ thegt hlovr I Jr building
Fig 17 r 11aps j nc he I r~n iri0nnl plvnu~
fl 1 R in fOr IsLd inr dllSl 11 It r I
1
Fig 2 -i bull Loa il~ of d ~r15 TypicaJ burial ~t ~adLoactiv
) 5 c J lt po 1 I
Fi 25 Rehabill tated s tee
11
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
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Pi A-3 Poslconloucing 5 mpling resull~
Fl~ Tr a nsit ional pJ num a ter duct f_rnovaL
fi 7 T mporary f II trd middotmiddothJUSL vstem for I ansition L ~lmiddotnllrn
fig L Fill 10 Rt1I1ovll of tJCk Packag ing f ftack
11
Pig 15 Fig 1tl Separnion )r 1 ~ bullr 1 om fro) Cnl1ip~ln$ thegt hlovr I Jr building
Fig 17 r 11aps j nc he I r~n iri0nnl plvnu~
fl 1 R in fOr IsLd inr dllSl 11 It r I
1
Fig 2 -i bull Loa il~ of d ~r15 TypicaJ burial ~t ~adLoactiv
) 5 c J lt po 1 I
Fi 25 Rehabill tated s tee
11
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
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Pig 15 Fig 1tl Separnion )r 1 ~ bullr 1 om fro) Cnl1ip~ln$ thegt hlovr I Jr building
Fig 17 r 11aps j nc he I r~n iri0nnl plvnu~
fl 1 R in fOr IsLd inr dllSl 11 It r I
1
Fig 2 -i bull Loa il~ of d ~r15 TypicaJ burial ~t ~adLoactiv
) 5 c J lt po 1 I
Fi 25 Rehabill tated s tee
11
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
~HII
Pi A-3 Poslconloucing 5 mpling resull~
1
Fig 2 -i bull Loa il~ of d ~r15 TypicaJ burial ~t ~adLoactiv
) 5 c J lt po 1 I
Fi 25 Rehabill tated s tee
11
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
~HII
Pi A-3 Poslconloucing 5 mpling resull~
R PR DUCTION OF FIGURE TO DEPARTNE T F ENERGi
u H
0 a bull
a
0
bull 0
bull middotn ~ t o- 0 0 bull _
~ 1J 0 a
bull bull t Ibull a I h~ bull 0
0bull bull 0 bull
bull bull bull bull bull
bull 0 0 bull 0
0
0 0 tI middotmiddotJ0 0 u o 0 c) raquo bull +bull middot
0 0
bull 0 bull 0 o 0 bull ~~ ~ ~~
r U1l o bull o 0 bull o 0 o bullbull + o 0 0 bull
H
1 middot11 -[ 1 ~
Q Gn J JO~ tn)t bull 0-111 lOc G ~ Jo pOJot_ bull Ct_-~~gt~ _~_~
~
ltgtu 0_ 0 g O~ ~ UJ ~-
Fig A- I F g fL- 2 S rfa ~e soil sampling r esul ts _ Spot clean-up so pllng r middotuits
rilll NCI
a Q
+0 o ~ 0 HMmiddot 11 +
0 0 r 1)- H-56 + 0
01 1m 0 0
0 0 0
0 + 0
NMto()~o Gtou_ptu Iy lt lDnO amp I bull 11 middot41 ( 1))4bull Goon IC1 111 10 DO thYLf~
~HII
Pi A-3 Poslconloucing 5 mpling resull~
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