corrective action plan for corrective action ljnit 254 .../67531/metadc...doe/n\”-678 corrective...
TRANSCRIPT
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NevadaDOE/NV- 678
EnvironmentalRestorationProject
Corrective Action Plan forCorrective Action LJnit 254:Area 25 R-MADDecontamination FacilityNevada Test Site, Nevada
Controlled Copy No.: IT;!l[[()[[[]
Revision: O
December 2000
Environmental Restoration
.— .
Nevada Operations Office
DISCLAIMER STATEMEN’1’
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Avtiil Jblc for a pr(xxssing fee 10 U.S. [kpartmtmt of”J3wrg) and its contract ors,” in paper, !r~)m:
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DoE/N\”-678
CORRECTIVE ACTION PLAN FORCORRECTIVE ACTION UNIT 254:
AREA 25 R-MAD DECONTAMINATION FACILITY,NEVADA TEST SITE, NEVADA
Controlled Copy No.:
Revision O
December 2000
Prepared for the U.S. Department of EnergyNevada Operations Office
under Contract No. DE-A C08-96NV 11718
THIS PAGE INTENTIONALLY LEFT BLANK
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DOEtNV-678
CORRECTIVE ACTION PLAN FORCORRECTIVE ACTION UNIT 254:
AREA 25 R-MAD DECONTAMINATION FACILITY,NEVADA TEST SITE, NEVADA
Approved By: Date: \41Z/00
Industrial Sites Project
Approved By:[
Due: ,~h+do
Runore C. Wyco~ DireEnvironmental Resto
...Ill
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TABLE OF CONTENTS
ACRONYMS AND ABBREVIATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. viiExecutive Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..............i~
1.() INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . ...11.1 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1]~ Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...151.3 CorrectiveA ctionPlanC ontents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...15
’70 DETAILED STATEMENTOFWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...172.1 Approved Alternative Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...17
2.1.1 Planning, Si[e Preparation. and Permits . . . . . . . . . . . . . . . . . . . . . . . . 172.1.1.1 SSHASP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ., . . . . . . ...172.1.1.2 FOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...172.1.1.3 NEPA Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...172.1.1.40ther Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...18
2.1.2 Field Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...182.1.2.1 PerformRadiologicalS urveys. . . . . . . . . . . . . . . . . . . . . . . ...1 82.1.2.2 Expand Fenced Area and Move Debris . . . . . . . . . . . . . . . . . . . 182.1.2.3 Perform Hantavirus Cleanup and Remove Roots . . . . . . . . ...182.1.2.4 Disconnect Electrical and Water Sources . . . . . . . . . . . . . . . . . 192.1.2.5 Identify and Encapsulate ACMs . . . . . . . . . . . . . . . . . . . . . ...192.1.2.6 Remove and Segregate Building Materials . . . . . . . . . . . . . . . . 192.1.2.7 Remove Impacted Sediment and Surficial Soil . . . . . . . . . . . . . 192.1.2.8 Demolition of Building 3126..... . . . . . . . . . . . . . . . . . . . ...202.1.2.9 Grout Underground Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202.1.2.10 Remove Surface ofConcrete Foundation . . . . . . . . . . . . . . ...202.1.2.1 l Decontaminate Equipment, Remove Fence, and Release Site .20
2.2 ConstructionQualityAssurance/ Quality Control . . . . . . . . . . . . . . . . . . . . ...212.3 Waste Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-.....21
2.3.1 Waste Minimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....~l2.3.2 Construction Waste . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....~l2.3.3 Petroleum Hydrocarbon Waste. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...232.3.4 Hazardous Waste . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ......~~2.3.5 Low-Level Radioactive Waste. . . . . . . . . . . . . . . . . . . . . . . . . . . ......~~2.3.6 Mixed Waste . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...242.3.7 Container Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...242.3.8 Site Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...252.3.9 Personnel Training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....~~
2.4 Remediation Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..~~2.5 Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...28
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TABLE OF CONTENTS (continued)
Rc\ I~ICIn {)
Ddlc I)cccmkl 17. 20(M)
3.() SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ,293.1 Project Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . ., . . . . . . . . . . . . . . . . . ...29
,W
~.~ Field Work Closure Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...29
4.() REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...31D
DISTRIBUTION LIST
FIGURES
Figure l- Location ofCAU 254 at the Nevada Test Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2Figure 2- Location ofCAU 254 in the R-MAD Compound . . . . . . . . . . . . . . . . . . . . . . . . . . ...3Figure 3- Site Plan ofCAU 254: Area 25 R-MAD Decontamination Facility . . . . . . . . . . . . ...4
TABLES
Table l- Summary ofCADDSample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...6Table 2-Management Summary ofWaste Types Anticipated to degenerated. . . . . . . . . . ...22Table 3- Summary ofVerification Samples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...27
APPENDICES
A Project Organization
B Comment Response Documentation
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ACRONYMS AND ABBREVIATIONS
ACMASTBNCADDCAIPCAPCASCAUcmCocCRCDOEDOE/NVdpm
EPAEZFFACOFMPftgalinLLLWmm3mg/Lmgfkg
asbestos-containing materialabove-ground tankBechtel NevadaCorrective Action Decision DocumentCorrective Action Investigation PlanCorrective Action PlanCorrective Action SiteCorrective Action Unit .centimeterConstituent of ConcernContamination Reduction CorridorU.S. Department of EnergyU.S. Department of Energy, Nevada Operations Officedisintegrations per minuteU.S. Environmental Protection AgencyExclusion ZoneFederal Facility Agreement and Consent OrderField Management Planfootgalloninchliterlow-level radioactive wastemetercubic metermilligram per litermilligram per kilogram
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C,4P - CA(’ N,] ?W
Arc~ 25 R- NIAI) I)CCOII I-.I. II II!
SCCIIOII A{’RO & ABBRl \Rcvlbl,)ll II
D.I[r. Dee,.,l]tx( I?. 20(MI
ACRONYMS AND ABBREVIATIONS
NACNDEPNEPANTSPALPCBpCi/gpCi/LPocPPEPRGQCR-MADRadConRCRAREOPRMARWPSHSOSSHASPSvocTCLPTPHTSCATSDFug/LUTSVocWMAyd>
Nevada Administrative CodeNevada Division of Environmental ProtectionNational Environmental Policy ActNevada Test SitePreliminary Action Levelpolychlorina[ed biphenylspicocuries per grampicocuries per liter .
Performance Objective for CertificationPersonal Protective EquipmentPreliminary Remediation Goalquality controlReactor Maintenance, Assembly, and DisassemblyRadiological ControlResource Conservation and Recovery ActReal Estate/Operations PermitRadioactive Materials AreaRadiological Work PermitSite Health and Safety OfficerSite-Specific Health and Safety Plansemi-volatile organic compoundToxicity Characteristic Leachate Proceduretotal petroleum hydrocarbonsToxic Substance Control ActTreatment, Storage, and Disposal Facilitymicrograms per literUniversal Treatment Standardvolatile organic compoundWaste Management Areacubic yard
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EXECUTIVE SUMMARY
The Area 25 Reactor Maintenance, Assembly. and Disassembly Decontamination Fucilitj isidentified in (he Federal Facility Agreemen[ and Consent Order (FFACO) as Correc[i\e ActionUnit (CAU) 254. CAU 254 is located in Area 25 of the Nevuda Tes[ Site and consists of a singleCorrcc[ive Action Site CAS 25-23-06. CAU 254 will be closed, in accordance with the FFAC()of 1996.
CAU 254 was used primarily to perform radiological decontamination and consists of’Building 3126, two outdoor decontamination pads, and surrounding soil within an exislin:
perimeter fence. The site was used [o decontaminate nuclear rocket test-car hardware andtooling from the early 1960s through the early 1970s, and to decon[aminute a military tunk in the
early 1980s.
The site characterization results indicate that, in places, the surficial soil and building materialsexceed clean-up criteria for organic compounds, metals, and radionuclides. Closure activities
are expected to generate waste streams consisting of nonhazardous construction waste.petroleum hydrocarbon waste, hazardous waste, low-level radioactive waste, and mixed waste.Some of the wastes exceed land disposal restriction limits and will require off-site treatmentbefore disposal.
The recommended corrective action was revised to Alternative 3- “Unrestricted ReletiseDecontamination, Verification Survey, and Dismantle Building 3126,” in an addendum toCorrection Action Decision Document.
[he
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1.0 INTRODUCTION
This Corrective Action Plan (CAP) describes the closure activities planned to UI1OWUnrcs[ric>[ulrelease of the Reactor Maintenance, Assembly. and Disassembly (R-MAD) Dccontamina[it)nFacility. The R-MAD Decontamination Facility is identified in the Federal Facilit) Agrccm~’nland Consent Order (FFACO) of 1996 as Corrective Action Unit (CAU) 254 (FFACO. lW() )which consists of Conective Action Site (CAS) 25-23-06, Decontamination Facili[>,Remediation of CAU 254 and CAS 25-23-06 is required under the FFACO (FFAC(), 1996).
1.1 PURPOSE
The purpose of this CAP is to provide the strategy and methodology to close CA U 254 forunrestricted access and use of the site above the ground surtice. Use restrictions will l-wnecessary to prohibit intrusive activities into, and beneath, the concrele foundtition.
CAU 254 is located in Area 25 of the Nevada Test Site (NTS). The NTS is loca[edapproximately 100 kilometers (62 miles) northwest of Las Vegas, Nevada (Figure I ). CAU 254is located within the R-MAD complex (Figure 2) and consists of Building 3126. two outdot)rdecontamination pads, and surrounding areas within an existing fenced area mc~suringapproximately 50 x 37 meters (m) ( 160 x 120 feet [ft]) (Figure 3). The R-MADDecontamination Facility was used from the early 1960s to the early 1970s as part of the NuclearRocket Development Station program to decontaminate test-car hardware and tooling. The sitewas reactivated in the early 1980s to decontaminate a radiological y contaminated militarv [ank.
The Corrective Action Investigation Plan (CAIP) (United States Department of Energy, NCVAOperations Office [DOE/NV], 1999a) described the site history, outlined a site characterizationplan, and proposed preliminary action levels (PALs) as clean-up goals to achieve unrestrictedrelease. Site characterization activities were performed in January and February 2000,” andreported in the Corrective Action Decision Document (CADD) (DOE/NV, 2000h). The Ncj;ldaDivision of Environmental Protection (NDEP) approved the CADD (DOWNV, 20()()b) whichrecommended “Corrective Action Alternative 2- Unrestricted Release Decontamination undVerification Survey.” This decision to leave Building 3126 standing was changed to removal ofBuilding 3126 in an addendum (DOWNV, 2000a) which recommends “Corrective ActionAlternative 3- Unrestricted Release Decontamination, Verification Survey, and [Iismtin[leBuilding 3126.”
The soil beneath the concrete foundation was not investigated in the site characterization nor wasit included in the approved alternative (DOE/NV, 2000a). The “acid drain lines” in the ct)ncretcfoundation were grouted in the site characterization investigation (Bechtel Nevada [BN ]. 2000h)and are not included in the amended approved alternative (DOE/NV, 2000 b). Site closure will,therefore, allow unrestricted access and use of the site above the ground surf~ce t-mlwill includeusc restrictions to prohibit intrusive activities into. and beneath, the concrete foundation.
1
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FIGURE 1LOCATION OF CAU 254 AT THE NEVADA TEST SITE
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1, EXPLANATION
I_kK22= Budding~ Paved Road and Areas———- Burled Acid Waste Line-------- Buned Sewage Lme—-—. — R-MAD Perimeter Fence
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IEXISTING PERIMETER FENCE WILL BE EXTENDED TO THE NORTHWEST]ANO WILL BE uSEO TO DESIGNATE T+IE WORK AREA EXCLUSION ZONE
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Modlfled from CADD (DOE/NV, 2000)
FIGURE 3SITE PLAN OF CAU 254:
AREA 25 R-MAD DECONTAMINATION FACILITY
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In the site characterization investigation, various soil and building materials were sumplecl andanalyzed for potential constituents of concern (COCS). The analytical results were presen[cxl inthe CADD (DOE/NV, 20(X)) and are summarized in Table 1. The following PALs wereexceeded:
●
●
●
●
●
●
●
The U.S. Environmental Protection Agency (EPA) Resource Conservation and l<ccoi CI!Act (RCRA) toxicity characteristic hazardous waste (EPA. 1998a) for wwnic
(5.() milligrams per liter lmg/Ll Toxicity Cbracterislic Leachate Procedure ITCLP 1 ~Acadmium ( 1.0 mg/L TCLP), and Universal Treatment Standard (UTS ) (EPA. 1’)07 ) forarsenic (5.0 mg/L TCLP) and cadmium (0.19 mg/L TCLP).
EPA F-listed hazardous wastes (EPA, 1998b): acetone (F~~~); benzene (F(JW): carb{)lldisulfide (F005); ethylbenzene (FO03);toluene(FO05); 1,1, l-trichloroethme (NW ):trichloroethene (FO02); and xylenes (FO03 ).
EPA Toxic Substances Control Act (TSCA) (U.S. Department of Energy [DOE I. 1999and EPA, 1999b) waste treatment level for polychlorinated biphenyls (f>C13s) (50 m#kg).
The EPA 1999 Industrial Preliminary Remediation Goals (PRGs) for organic compoundsand total metals (EPA, 1999a): PCB-isomer Arochlor- 1254 ( 1.0 milligram per kilogrm[mg/kg]), PCB-isomer Arochlor- 1260 ( 1.0 mg/kg), bis(2-ethylhexy l)phthalate ( 180mg/kg), arsenic (2.7 mg/kg), chromium (450 mg/kg), and lead ( 1,000 mg/kg).
NDEP petroleum hydrocarbon action level of 100 mg/kg for petroleum hydrocarbons(Nevada Administrative Code [NAC], 1996).
Asbestos-containing materials (ACMS).
Radiological release limits.
There are a number of different radiological release limits that can be applied at CAU 254.Surface activity limits for release of material from radiological areas are listed in the NV/YMPRadiological Control Manual (RadCon Manual) (DOE/NV, 1999b). Background volumetriclimits are listed in the NTS Performance Objective Criteria for Certification (POC) ofNonradioactive Hazardous Waste (BN, 1995) and are intended to distinguish hazardous wus[e(with no added radioactivity) from mixed waste (hazardous waste with any added radio~c[i~i[y ),without regard to whether there is any increased health risk. Risk-based volumetric limits (“sumof fractions”) for NTS Class 111landfills are listed in the operating permits (DOE/NV, 1997ti und1997b) and allow non-hazardous industrial solid waste to contain some added radioactivi( y(without any added radiological risk) before requiring disposal as low-level radioactive waste(LLW). Although neither the POC limits (BN, 1995) nor the “sum of fractions” limits(DOE/NV, 1997a and 1997b) were developed for use as release criteria. the “sum of !rac[i[ms”limi[s (DOE/NV, 1997a and 1997b) will be used to guide soil cleanup at CAU 254 bec:Iusc i[ is
based on actual real-world health risks.
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l_ABLE 1: SUMMARY OF CADD SAMPLE RESULTS (continued)I i I I I I I I I I I 1
5 Bay comer
-k
enviro;ediment 25400502
SE Bay drain” enviro;ediment 25400501~enler Bay drain enviro
vater & sediment 25400539
Jtility Room --- envir~--—
hain ~diment 25400512
dE Pad opening envlmsmsd;ediment 25400509
~E pad wenin~ &E@&-;ediment I254OO51O- .—— ——dE Pad opening Tenviro
~
;oil O-2.5H 25400546
;W Pad opening en~ro ““;edi~nt 25400511
;W Pad opening en~ro;oil O-1.5ft 25400548
;OIL
)ckgrndl !background;oil 2-3ft ]254!XXM3jckgrndl Ibackground;oil O-4in 125400004t--)ckgrnd2;oil 2-3ft
~:gkhc:d
)ckgrnd2 background;oil O-4in 25400006
)orehole03 “enviro;oil O-1ft 25400007
5 CHARACTERISTIC~ ~ AND LISTED RAD PROBABLEo -* z HAZARDOUS
ANALYTES EXCEEDtNG TSCA, CRITERIA WASTEa aa a WASTES (m@kg PRG, OR NDEP LIMtTS (m@kg EXCEEDED STREAM
~ ; unless otherwise indicated) (POC or FORunless otherwiseg ~ indicated) SUM) DISPOSAL
o 0~ g
%:=:---T=i=Ri;i:-Arochlor-1 260 (23)> PRG (1 .0);
it----- -t—---–--––––––FO03 Acetone (0.082
—
(0.04). fz-:”;;--Arsenic (12) > PRG (2.7); Lead-(1,200)> PRG (1,000).
Arochlor-1260 (23)> PRG (1 .0);
Arsenic (3.3) > PEG (2.7).
Arochlor-1260 (30) > PRG (1 .0):
+A~?niS_ (3 ~) > PRG 1.0.
+* Arochlor-1260 (1 .1) > PRG (1.0),
IL ~~ ‘“-‘--- ‘- ‘“‘---‘-——*+ 1Arochior-1260 (2.5) > PRG (1 .O);-
Arsenic (3.8) > PRG (2.7)
V* Arochlor-1260 (19) > PRG (1 .0),
[.
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>POC >SUM———
>POC >SUM
>POC >SUM
>P(X
>POC >SUM—
>POC >SUM
>P(X
>POC >SUM
>P(x
LLW
NA
LLW
Class Ill
LLW
Class Ill
NA
NA
NA
NA
NA
TABLE 1: SUMMARY OF CADD SAMPLE RESULTS (continued)
orehole03 enviro
oil 2-3ft 25400008—.——mehole04 enviro
oil O-1ft 25400009
orehole04 eflviro
oil 2-3ft 254OOO1O
oreho~e05 enviro
oil O-1ft 25400011
orehole05 enfir;
oil 2-3ff 25400012
orehole06 enviro
oil O-1ff 25400013—.orehole06 enviro
oil 2-3ff 25400014
orehole07 “” enviro
oil O-1ft 25400015
orehole07 enviro
oil 2-3fl 25400016
orehole08 enviro
oil O-1ft 25400017
ienviro”orehole08oil 2-3ft :::yl 8orehole09oil O-lft :25400023
orehole09 ‘du~ 023
oil O-1ft 25400025
lorehole09 “env/msmsd
oil 2-3ft ;25400024
lorehole10 enviro
oil O-lft 25400026
CHARACTERISTICAND USTEDHAZARDOUS
WASTES (m@kgunless otherwise
indicated)
_——
.—
.—
.—
—
~NALYTES EXCEEDING TSCA,PRG, OR NDEP LIMITS (m@kg
unless otherwise indicated)
—. —
— —
4roChlor-1260 (2.2) > PRG
—
1.0).
RADCRITERIA
EXCEEDED(POC or
SUM)
.-
>P(3C
—
-—
>Poc
>Poc
1
> Poc
I
I
,I
I
PROBAB1WASTE
STREANFOR
DISPOSA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
~
NA
NA
TABLE 1: SUMMARY OF CADD SAMPLE RESULTS (continued)
SAMPLESAMPLE
.OCATION AND Typ~DANDMEDIA
NUMBERI
I)oreholel O
mil 2-3ft -.—.fireholel 1mil O-1H
xxeh~el 1;oil 2-3fl
firehole12
;oil O-1ft
xxehoiel-2;oil 2-3ft
]oreholel 3jOil O-1ft
]&rehok~ 3;oil 2-3ft
]oreholel 4
50il O-1ft
]oreholel 4soil 2-3ft]oreholel 5
$OilO-1ff
3orehole15SOil2-3ft3orehole16;oil O-1ft~orehole16soil 2-3ft
~oreholel 750il O-1ft~oreholel 7soil 2-3ft
enviro25400027
enviro25400028
enviro25400029
env~o25400030
enviro125400031
1
enviro
254.~32
!enviro
1-25400033
1 ---
enviro25400034
tenviro– -‘-!254LH3035
enviro
:254~36
enviro,25400037
enviro25400038
1enviro
.254~39_
enviro25400043enviro25400044 ($
CHARACTERISTICAND LISTEDHAZARDOUS
WASTES (mg/kgunless otherwise
indicated)
—.——-
—
—
-. —
_.. — —
.———.——.\iI
LNALYTES EXCEEDING TSCA,JRG, OR NDEP LIMITS (m@kgunless otherwise indicated)
—
.—
——
.—
RADCRITERIAEXCEEDED
(POC orSUM)
●Poc
●Poc
.Poc
3ROBABLE
WASTESTREAM
FORDISPOSAL
NA
NA—
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
TABLE 1: SUMMARY OF CADD SAMPLE RESULTS (cnntinlmd)— — — — —------ ——. ____ -.= . . . . . . ..- --I 1 7 ! , ,
ICHARACTERISTIC
AND LISTEDRAD PROBABLE
HAZARDOUSANALYTES EXCEEDING TSCA, CRITERIA WASTE
‘a’”--- ‘–-kgPRG, OR NDEP LIMITS (m@kg EXCEEDED STREAM
iunless otherwise indicated) , (POC or FOR
:lyj~)glglgl“,,, =-= “.,,=, 4 se
1“#4*#..B*aA\ I SUM) DISPOSALm, ,U,l.caw”,
I IUnderline denotes dt.mlicate of rmecedina samgle,> = Greater than (analyfe is greater than regulatory level)< = Less than (analyte is less than regulatory level)
Class Ill = NTS Class Ill industrialsolid waste landfillHAZ. hazardous waste
LLW = low-level radioactive wastemg/kg = milligram(s) per kilogrammgl = milligram(s) per literMW = mixed waste
u NA = not applicableNDEP = Nevada Division of Environmental ProtectionPCBS = polychlorinated biphenyls (Arochlor)
pCi/g = picoCuries per gram
POC = background radiological levels (see text)PRG . Preliminary Remediaton Goal
RCRA . Resource Conservation and Recoverey Act
SVOCS = semivolatile organic compounds
SUM = “Sum of Fractionsm criteria for NTS Class Ill landfills
TCLP = Toxicity Characteristic Leachate ProcedureTSCA = Toxic Substances Controt ActTPH . total petroleum hydrocarbons
UTS = Universal Treatment StandardVOCS. votatiie organinc compounds
Duplicate samples are indicated by ‘dupm sample type and underlining
Wastes exceeding treatment standards and therefore requiring treatment are indicatedas “LLW (IreatPCB),” .HAZ (Ireal arsenic),.and “MW (treat Cd)..
Background radiological levels established in POC (BN, 1995).
137Cesium: 3 picocuries per gram (pCi/g); 2mPu?@Pu?@Pu: 0.5 pci/g; and 2%: 10 pCi/g
NTS Class Ill Landfill ‘Sum of Fractions- criteria (SUM) (DOE/NV, 1997a and 1997b).
Sum of 241Am, 242Cm, ‘“Cm, 237NP,2WPU, 2WPU, 2@Pu, ‘Ra, 2QTh >10 pCi/g.
Sum of 137Cs, lWEU, ‘Na, ‘Nb, ‘Ni, 2d1Pu, ‘.Sir, %c, 2UU, 2%, 2% >100 pCi/g.
{’AIJ C’.A1”N,) 254Arc.I ?5 R-MAO Dw(m I. ICIIII)
Scclloll INTRO[)[’CTIOSR<\1>,,)1)()D.IIc l),tc[t)hct 13. 21K)II
Asbestos-containing materials (ACMS) were identified at CAU 254. These ACMS include the
outer coating on the above-ground storage tank (AST), insulation on pipe corners, and interiortransite wallboard. An asbestos abatement plan will be prepared before ACMS are removed h)trained workers who will isolate the ACMS using chemical fixatives, wrapping the ACMS inplastic, or by using other approved methods. The ACMS will then be placed in (he appmpriti[cwaste stream.
The EPA TSCA (DOE, 1999 and EPA, 1999b) waste treatment level for PCBS (50 mg/kgexceeded in three samples:
● An area of the north loft wall insulation that appeared stained was sampled and toL
was
d to
contain Arochlor- 1260 at 760 mg/kg. A duplicate sample contained Arochlor- 1260 atonly 37 mg/kg. The sampling location was later examined but no further staining couldbe found and the impacted area is believed to have been completely removed bysampling. The TSCA limit was not exceeded in the other five insulation samples,
● An area of the loft floor wood was sampled and found to contain Arochlor- 1260 at230 mg/kg, The sampling location was later examined but no evidence of a spill wasfound. If a stained area existed as evidence of a spill, then the impacted areu wascompletely removed by sampling. If the elevated concentrations are due to dried pain[applied to the loft floor, which was observed, then the waste is considered PCB bulkproduct waste for which the TSCA limit does not apply. The seven paint samples werenot analyzed for PCBS.
9 The turbulator vent stack filter was sampled and found to contain Arochlor- 1260 at180 mg/kg. The sample was submitted in four containers and three were returned fromthe analytical laboratory. Other than the filter media in these sample containers, no otherturbulator vent stack filter media was found at the site and the entire filter is believed tohave been collected as the sample. Although the elevated PCB concentrations could bedue to the filter product, which would be considered PCB bulk produc[ waste, theremaining sample will be considered as exceeding the TSCA limit and will requiretreatment before being disposed as LLW.
The CADD (DOE/NV, 2000b) reported that a sample of water and sediment from the centerfloor drain was analyzed for VOCS and radionuclides, and was found to contain acetone
(82 micrograms per liter [ug/L]), 2-butanone (23 ug/L), cesium- 137 ( 1,350 picocuries per liter[pCi/L]), strontium-90 (7,400 pCi/L), and uranium-235 (151 pCi/L). Cleanup of this waste inthe acid drain lines was not discussed and the NDEP approved the CADD (DOE/NV, 2000b)with the condition that subsurface piping be addressed in the CAP (NDEP, 2000). Waste in theacid drain lines and the acid drain lines themselves are not considered further because. fol]owingsample collection, no water or sediment remained and the acid drain lines were grouted closed(BN, 2000b). All remaining ungrouted subsurface drain lines will be grouted during closureactivities. Subsurface drain pipes beyond the concrete foundation are not addressed in this CAU254 CAP as they are part of another CAU (CAU 262).
9
m
w
14
CAP CAL N,) 25AArc.! ?5 R-MAD Dcc{)n f,.k’il)[iSCLIIOI1 IN”I’ROI)(’(V 10s
Kc\I~IOI) II
{).lIL. [kC’C~lltXl ] .{. ~t~~(~
1.2 SCOPE
The purpose of Corrective Action Alternative 3, as recommended in the CADD Addendum(DOE/NV. 2000a). is to achieve closure through the following activities:
● Removal and disposal of contaminated soil and building materials.● Verification that all contaminated soil and building materials have been removed,● Release of the remaining facility for unrestricted ticcess and use.
The scope of work for closure of CAU 254 includes the following field activities:
●
●
●
●
●
●
●
●
●
●
●
1.3
Perform radiological surveys.Expand fenced area and move debris.Perform Hantavirus cleanup and remove roots.Disconnect electrical and water sources.Remove and encapsulate ACMS.Remove and segregate building materials.Remove impacted sediment and surflcial soil.Demolition of Building 3126.Grout underground piping.Remove sutidce of concrete foundation.Decontaminate equipment, remove fence, and release site
CORRECTIVE ACTION PLAN CONTENTS
This document is divided into the following sections in accordance with the approved FFACOCAP outline:
● Section 1.0- Introduction (Purpose, Scope, and Contents)
● Section 2.0- Detailed Statement of Work (Approved Alternative Implementation,Construction Quality Assurance / Quality Control, Waste Management andMinimization, Remediation Verification, Permits)
● Section 3.0- Schedule
● Section 4.0- References
The following sections and appendices, as outlined in the FFACO, have not been included:
● Section 4.0- Post-Closure Plan (Inspections, Monitoring, Maintenance and Repiiir)This section is not necessary pending approval of clean closure.
● Appendix Al - Engineering Specifications and Drawings
15
CAP CA(’ N,, 2.$4
Arcd 25 R-MAD r)ec{m FJCIIII)kLtll)ll IfiTROD1’CTIO\
Rcbl.loll 1)
1).IIC Ikcclllkl I 3 3MKI
This appendix is not warranted for the site as there are no construction or engineeredcover requirements for closure.
● Appendix A2. Sampling and Analysis PlanThe sampling and analysis requirements for the site are detailed in Section 2.4 “Clei.m-upVerification,” A separate sampling and analysis plan, therefore, is not included as tin
appendix.
● Appendix A3. Project OrganizationThis appendix is included as Appendix A.
The appendices included in this document are provided as follows:
● Appendix A: Project Organization
● Appendix B: Comment Response Documentation
16
CAP CAU No. 254Ar~a ?5 R-MAD DIXOII FJCII!IY
Scdton: DETAILED SOWRev)si[)n:OD.IIc December 13, 2000
2.0 DETAILED STATEMENT OF WORK
2.1 APPROVED ALTERNATIVE IMPLEMENTATION
This section describes how the approved corrective action alternative will be implemented.The approved alternative is unrestricted release decontamination and verification survey.As discussed previously in this document, the correction action alternative recommended in theCADD (DOE/NV, 2000b) was changed to Alternative 3 in an addendum (DOE/NV, 2000a)which adds the removal of Building 3126. The scope of the approved alternative consists of thefollowing activities.
2.1.1 Planning, Site Preparation, and Permits
Prior to beginning corrective action field activities, planning documents and permits must beprepared, such as the Site-Specific Health and Safety Plan (SSHASP), Field Management Plan(FMP), National Environmental Policy Act (NEPA) checklist, Real Estate/Operations Permit(REOP), Radiological Work Permit (RWP), and utility clearance/excavation permit.
2.1.1.1 SSHASP
A SSHASP (including a Preliminary Hazard Analysis and Hazard Assessment) will be preparedand the signed original, or a copy, will be kept at the work site by the Site Health and SafetyOfficer (SHSO). The work site SSHASP will be available for review and signature by allworkers prior to beginning work. The SHSO will also maintain a material safety data sheet file,available for review, of chemicals brought to the site, The SSHASP will provide a detailed, job-speciflc plan covering physical and environmental hazards, protection against accidents andexposure of workers to contamination. It will also discuss weather/air monitoring, accidentreporting, and emergency procedures. Additional copies of the SSHASP will be kept on file inthe BN Environmental Restoration and BN Environment, Safety, and Health Division offices inMercury, Nevada.
2.1.1.2 FMP
A FMP will be prepared for the closure activities. The FMP will outline how the work will beaccomplished and will include an integrated safety management plan and a detailed schedule forthe project. In addition, the FMP will identify the responsible parties for each aspect of theproject and will indicate how decisions will be made. Copies of the FMP will be available at thework site and kept on file in the BN Environmental Restoration office in Mercury. Nevada.
2.1.1.3 NEPA Checklist
A NEPA checklist, and any subsequent documentation, will be completed prior to beginning anyexcavation activities at the site. If necessary, a follow-up survey will be performed and willreport on the condition of existing trees, shrubs, grassed areas, cultural resources, sacred sites,
17
CAP CAU No. 254AIeJ 25 R-M/lD Decon FJcIII[y
Section: DETAILED SO\V
Rcvlslon: ()
DJ[c: Dccen)bcf 13, 2(NLI
and wildlife immediately adjacent to the area which may be affected by construction activities,equipment and material storage areas, and access routes. Based on the findings of this survey.the excavation activities at the R-MAD Decontamination Facility will follow all applicablefederal, state, and local laws, regulations, and permits for protection of the environment.
2.1.1.4 Other Permits
Other permits required before beginning clean-up activities include the REOP and the RWP. Inaddition, a utility clearance / excavation permit will be completed before excavation activitiesare initiated.
2.1.2 Field Activities
2.1.2.1 Perform Radiological Surveys
Radiological surveys will be performed continuously during CAP closure activities to monitorworker exposures, to determine waste disposition, and to verify cleanup. At the conclusion ofclean-up activities, a final demarcation radiological survey will be performed before releasingthe site for unrestricted access and use.
Impervious surfaces that are radiologically contaminated will be removed or remediated toradiological activity release levels indicated in Table 4-2 of the RadCon Manual (DOE/NV,1999 b). Porous materials, such as wood and soil, that are radiologically contaminated orpotentially contaminated will be removed or remediated to “sum of fractions” levels (DOE/NV,1997a and 1997 b).
2.1.2.2 Expand Fenced Area and Move Debris
In order to provide additional room to facilitate site cleanup, the existing fenced area will beexpanded to the northwest by approximately 30-60 m (100-200 ft). Existing debris, locatedoutside the northwest fence, will be moved farther out, and will be later combined and disposed,as appropriate with waste generated from the CAU 254 cleanup.
2.1.2.3 Perform Hantavirus Cleanup and Remove Roots
Potential Hantavirus-bearing animal waste (droppings from rodents and rodent-eating owls) inBuilding 3126 will be removed by qualified workers. In addition, roots from outside plants haveinvaded the restroom covering much of the floor. The organic matter in Building 3126 is notsuspected of being LLW but will be surveyed with field instruments to determine if any of thewaste is radiologically impacted.
m
m
m
18
?J ,2,4 Disconnect Electrical and water sources
Electrical and water service to Building 3126 will be permanently terminated before any wires.conduit, junction boxes, pipes, pumps, or tanks are cut or removed as part of, or in support of,the clean-up work. After reviewing available construction drawings and schematics, [heelectrical service will be terminated by a qualifled electrician or lineman and the water servicewill be terminated by a qualified plumber or pipefit[er.
2.1.2.5 Identify and Encapsulate ACMS
ACMS have been identified in the AST coating, pipe-elbow coatings, and transite wallboard, und
will be removed and handled by qualified workers. After this waste has been safely
encapsulated. it will be placed in the appropriate waste stream for disposal.
2.1.2.6 Remove and Segregate Building Materials
Impacted building materials such as wallboard, insulation, lumber, and pipes will be removedand segregated into appropriate waste streams before Building 3126 is demolished. Impactedconcrete surfaces may be removed after demolition. Unimpacted building materials andequipment may also be removed before building demolition if needed [o access impactedbuilding materials or if it can be economically reused or recycled. Fluids may still exist inpiping, pumps, tanks, air compressor, overhead crone gearbox, and door dampers. If present,these fluids will be drained and collected in suitable containers for disposal or recycling. 1(necessary, samples will be collected for analysis. Precautions will be taken to minimize spillsand exposure to potentially hazardous constituents and conditions, such as pressurization. Dueto the sequence of steps, this task should be initiated as early as possible to provide time todevelop strategies to sample, drain, and dispose the fluids, if encountered.
2.1.2.7 Remove Impacted Sediment and Surficial Soil
Impacted sediment and surflcia] soil has been identified around the general perimeter of Building3126, and as small discrete “hot spots” measuring up to 1 million disintegrations per minute(dpm) beta-gamma and 14,000 dpm alpha. The surilcia] soil in the north yard and withinapproximately 1.8 m (6 ft) of the southeast half of Building 3126 and adjoining outdoor pads willbe removed to a depth of 7.5 to 15 centimeters (cm) (3 to 6 inches (in]) and disposed in an on-site (NTS) LLW landfill. Radiological surveys will be performed to determine if additional “ho[spots” exist and need to be removed,
PCBS in concentrations slightly over the PRG were found in two soil samples (#254(X)015 and#25400054) from 0 to 0.3 m (O to 1 ft) depth (Figure 3). Deeper samples from both locutions(().6 to ().9 m [2 to 3 ft] depth) were below PRGs. Soil in these two locations will be removed toa depth of ().6 m (2 ft) over an area of approximately 1 square meter ( 11 square feet) and soveritlcation samples will not be necessary.
Sediment in the northeast and southwest pad openings (Figure 3) was determined to contain
radionuclides over “sum of fractions” clean-up levels, Arochlor- 1260 arsenic over PRGs, and nohazardous wastes. Samples of the underlying soil exceeded only the Arochlor- 1260 PRG.
19
CAP CA1’ N(I ?54
.Ared 25 R-hi AD DCC(lI1 F.xllll)
SCCIIOII DE7”A11.ED Sol!
Rc\l\ loll 1)D.llt [)CC’CITI!W!lj. ?()(M)
Therefore, [he sediment and underlying soil in the northeast and southwest pad openings will be
removed to depths of at least 0.76 m (2.5 f[) and ().46 m ( 1.5 h), respectively, and will bedisposed as LLW. Portions of the concrete pads may need to be removed or undermined in orderto remove the impacted soil. Radiological surveys will serve as verification that no mdio]ogical“hot spots” remain. Samples will be collected to verify no Arochlor- 1260 above the PRGsremain. A source of backfill will identified and the excavations will be backfilled and wheel-compacted to grade.
2.1.2.8 Demolition of Building 3126
The remaining building shell will be demolished. The debris will be radiologically surveyed anddisposed in an appropriate landfill. Most, if not all, of this waste is expected to be belowRadCon Manual (DOE/NV, 1999b) surface contamination release limits and disposed asconstruction waste.
2.1.2.9 Grout Underground Piping
The acid drain lines have already been grouted closed (BN. 2000b). Underground pipingassociated with fresh water inlet, outflowing sewage, and decontamination fluid supply will begrouted closed with either cement or a fast-curing chemical grout. Some piping, such as theoutflowing sewage lines, may be completely clogged with rootlets. At a minimum, the upper-most vegetative matter will be removed so that the openings to the drain lines can be filled with agrout plug at least 5 cm (2 in) thick. Subsurface drain lines beyond the concrete foundation arepart of another CAU.
2.1.2.10 Remove Surface of Concrete Foundation
The uppermost surface (approximately 0.3 cm [1/8 in]) of the concrete foundation will beremoved (using shotblast or similar method) until verified below RadCon Manual (DOE/NV,1999b) surface contamination release limits. This activity will generate an estimated volume of3 m~ (4 yd3) of mixed waste.
2.1.2.11 Decontaminate Equipment, Remove Fence, and Release Site
Equipment that becomes contaminated during the clean-up activities will be decontaminated on-site. Hand-held equipment will be cleaned with a solution of laboratory-grade cleanser andwater, and rinsed with clean water. Cleaning solutions and rinsate will be contained in a drum.If larger pieces of equipment require decontamination, a decontamination pad will be establishedby lining a bermed area large enough to hold the heavy equipment. The equipment will bedriven onto the pad and pressure washed. Rinsate will be held in the bermed area pnd allowed toevaporate unless it is in excess of what the bermed area can hold. Excess rinsate will be pumpedinto drums. Rinsate remaining at the end of closure activities will be disposed as outlined inSection 2.3 of this Closure Plan. When dry, the plastic liner will be radiologically surveyed andthen appropriately handled and disposed.
After the site has been verified clean, the perimeter fence and remaining warning signs will beremoved and disposed, and the site will be released for unrestricted use.
20
CAP CAU N(I 254
Arcd 2S R-MAD Occon I-.I,IlIt\s~~ti,>llDETA[LE[) S())\’
Rc\l\lon (1
I)JIC [Icccfllbcf Il. 2(MM)
2.2 CONSTRUCTION QUALITY ASSURANCE / QUALITY CONTROL
Construction activities will consist primarily of removing Building 3126, the uppermos[ surt’ticcof the concrete pad, and contaminated soil. No structures will be constructed and no
permeability or compaction testing will be necessary. Therefore, no construction qutility
assurance or quality control is required. The FFACO CAP outline Appendix A 1, “EngineeringSpecifications and Drawings, “ is not applicable and is not included.
2.3 WASTE MANAGEMENT
Waste streams generated at CAU 254 will include construction waste, petroleum hydrocarbonwaste, hazardous waste (including hazardous waste exceeding the UTS arsenic limit andrequiring treatment), LLW (including LLW exceeding the TSCA PCB limit and requiringtreatment), and mixed waste (including mixed waste exceeding the UTS cadmium limit andrequiring treatment). This section discusses waste management practices that will be usedduring closure activities at CAU 254. Staging areas for the various waste streams will be Ioca[edin the area to the northwest that will be enclosed by the expanded perimeter fence.
Table 2 summarizes waste management practices that will be used during closure activities wCAU 254. Waste will be managed in accordance with state and federal regulations, DOE orders,and BN procedures, including BN Company Directive CD-0442-O 10, Waste Mana~ement andPermitting (BN, 1999) and BN Organization procedure OP-215 1.304, Radioactive WasteTrackinz. Handlin~. and Mana~ement at the NTS (BN, 2000a).
2.3.1 Waste Minimization
All work activities will follow the BN Waste Minimization and Pollution Prevention Program.Care will be taken to segregate the waste streams to avoid the generation of additional waste.
2.3.2 Construction Waste
Approximate] y 100 m3 ( 130 yd3) of construction waste is estimated to be generated duringclosure activities and will consist of all construction waste that meets the following criteria:
● May contain organic compounds and metals above PRGs.● Does not contain characteristic or listed RCRA hazardous wastes.● Does not contain TPH above the NDEP action level.● May contain radionuclides over background P(IC limits if disposed in a NTS Class 111
landfill, but does not exceed higher “sum of fractions” limits.
21
SCCIIOII. DEI’AILED S()\\
RCVISIUI] O[)im! [)uxmher 13, ?()()()
TABLE 2: MANAGEMENT SUMMARY OF WASTE TYPESANTICIPATED TO BE GENERATED
MEDIA WASTE TYPE MANAGEMENT PRACTICE
Construction waste will consist of non-hazardous and non-radioactive
Haul waste in bulk or in approved containers and
building material waste.dispose in on-site (NTS) Class Ill landfill.
Hazardous waste will consist ofAccumulate waste in 208-L (55 gal) drum, stage m
90-day hazardous waste accumulation area, haulcompressor antifreeze, air filters, and
off -site for disposal. Some hazardous waste will
Buildingoffice bench wood.
require treatment.
materials Accumulate waste in B-25 or similar containers,
LLW will consist of some debris. stage in radioactive materials area (RMA), haul to
on-site (NTS) LLW disposal site.
Mixed waste will consist of lumberAccumulate waste in appropriate B-25 or similar
building products and concrete wastecontainer, haul to on-site (NTS) mixed waste
from shotblast.disposal site. Some mixed waste will requiretreatment.
Petroleum hydrocarbon waste may
OilAccumulate waste in 208-L (55 gal) drum, recycle
consist of oil from the air compressor,overhead crane, and door dampers.
or dispose in on-site (NTS) Class Ill landfill.
Sediment LLW will consisting of sediment andAccumulate waste in B-25 or similar containers,
and soil soil.stage in RMA, haul to on-site (NTS) LLW disposalsite,
PPE and trash generated during
handling of nonhazardous and non-Haul waste in bulk or in approved containers anddispose in on-site (NTS) Class i II landfill.
radioactive construction waste.
PPE and trash generated duringAccumulate waste in 208-L (55 gal) drum, stage in
handling of listed hazardous waste.90-day hazardous waste accumulation area, haul
PPE and off-site for disposal.trash
PPE and trash generated duringAccumulate waste in B-25 or similar containers,
handling of LLW.stage in RMA, haul to on-site (NTS) LLW disposalsite.
PPE and trash generated duringAccumulate waste in appropriate B-25 or similar
handling of mixed waste.container, haul to on-site (NTS) mixed waste
~ ~dis osal site.n-rcc..w 1 Ea.
Industrial, hazardous, low-level radioactive, and mixed wastes will be managed in accordance with BN CD-0442.01 O, “WasteManagement and Permmlng” (BN, 1999).
Low-level and mixed waste WIII be managed in accordance w!th BN OP-2151 .304, Rewson 2, “Radioactive Waste Tracking,
Handhng, and Management at the NTS” (BN, 2000a).
Hazardous, low-level. and mixed waste will be Placed into atwowlate containers, labeled, and staged In a dewnated waste
management area. If necessary, absorbent material will be added. Appropriate paperwork (Package Inventory, Waste Traveler,
Packaging Certification, Radioactive Material Shipping Record or Radtoacttve Material Shlppmg Exception Record, Waste
Shipment Checklisl, and Certification Statement) will be completed prior to sh!pment for disposal
Reusable PPE (coveralls, boots, respirators, etc.), If used, will be returned to the Area 6 Decon Laundry for cleamng and reuse
21
CAP CAL’ N,, 254
Are.I ?5 R.M4D I)ccim t-JcII II\SCXIIW1 Dl:’1 AI I.E1) soi~
Rc\l.l{)H ()
[).IIC I)cccmllcr I ~ 2(HI()
Construction waste is expected to include most of the building structure. Specific items include
structural beams, exterior walls and roof, hot water tanks, air compressor, the AST, insu]ution,and nonhazardous personal protective equipment (PPE ). This waste will be transported in bulkor in approved containers using flat-bed semi-trailers, end-dump trucks, dumpsters, or othersuitable equipment, to an appropriate on-site (NTS) Class III landfill.
2.3.3 Petroleum Hydrocarbon Waste
Less than 208 L (55-gal) of petroleum hydrocarbon waste is estimated to be generated. Thispetroleum hydrocarbon waste will meet the following criteria:
● Contains TPH above the NDEP action level.● May contain organic compounds and metals above PRGs.● Does not contain characteristic or listed RCRA hazardous waste.● May contain radionuclides over background POC limits if disposed in a NTS Class 111
landfill, but does not exceed higher “sum of fractions” limits.
This waste is expected to consist any remaining oil from the air compressor, overhead cranegearbox, and door dampers. This waste will be contained in a drum, recycled if possible, ordisposed in an appropriate on-site (NTS) Class III landfill.
2.3.4 Hazardous Waste
Approximately 208 L (55 gal) of hazardous waste is estimated to be generated during closureactivities and will consist of all waste that meets the following criteria:
● Contains characteristic and/or listed RCRA hazardous waste.● May contain TPH above the NDEP action level.● May contain organic compounds and metals above PRGs.● Does not exceed radiological background POC limits.
Hazardous waste will include compressor antifreeze (containing arsenic [DO(M] above TCLP andUTS limits and therefore requiring treatment), the office bench (containing acetone [F()()3] andtoluene[F005]), and decontamination bay air filters (containing acetone [F003]). This waste willbe handled following hazardous waste requirements and treated (as necessary) and disposed byan off-site hazardous waste TSDF contractor.
23
CAP - CAL’ N,, 254Arcd 25 R-MAD Dccon FJCIIII)
SCCIIOII. DEIAILED sowRc\l\lol) (1
L)JIC I)cccmhcr 13,2(NN)
2.3.5 Low-Level Radioactive Waste
Approximately 100 ms (130 yds) of LLW is estimated to be generated during closure activitiesand will consist of all waste that meets the following criteria:
● Contains radionuclides above “sum of fractions” limits.● May contain TPH above the NDEP action level.● May contain organic compounds and metals above PRGs.● Does not contain characteristic or listed RCRA hazardous waste.
This waste is expected to include all the sediment and soil. and some debris. This waste will beplaced in B-25 (or similar) containers and disposed in an on-site (NTS) LLW landfill. Theturbulator vent stack filter exceeds the TSCA PCB limit and will require treatment beforedisposal.
2.3.6 Mixed Waste
Approximately 50 m~ (65 yd~) of mixed waste is expected to be generated during closureactivities and will consist of all waste that meets the following criteria:
● Contain radionuclides over background POC limits.● Contains characteristic or listed RCRA hazardous waste.● May contain TPH above the NDEP action level.● May contain organic compounds and metals above PRGs.
Mixed waste is expected to include most of the lumber building materials from the interior ofBuilding 3126 including the loft floor wood (PCB bulk product waste), insulation from thesoutheast bay door, the first railroad tie, and all of the concrete shotblasting waste. Hazardouswastes include acetone (FO03), cadmium (DO06), carbon disulfide (FO05), ethylbenzene (F003).toluene (FO05), 1,1,1 -trichloroethane (FO02), trichloroethene (FO02), and xylenes (FO03). Thiswaste will be place in B-25 (or similar) containers and appropriately disposed. Wood from thesoutheast bay door exceeds the UTS limit for cadmium and will require treatment beforedisposal.
2.3.7 Container Management
Standard drums (208 L [55 gal]) will be used for limited volumes of petroleum hydrocarbonwaste. hazardous waste, and investigation-derived decontamination fluids. B-25 boxes will beused for LLW and mixed waste and filled to meet their weight capacity, which is anticipated [obe 3.600 kilograms (8,000 pounds). Debris will first be placed in the B-25 boxes, followed bysediment, soil. and compactable waste (such as PPE and trash) to fill void spaces. After a boxhas been filled, the waste package will be closed according to BN OP-215 1.304, “RadioactiveWaste Tracking, Handling, and Management at the NTS” (BN, 2000a).” If a box is notcompletely filled to capacity at the end of a work day, then the lid will be closed without
24
CAP - CAL: No 2W
Arc~ ?5 R.MA[) Dcx’011 [. ILIIII\
sccII(m DETAILED S()~\
Rc\ I!,lorl ()
[).IIc t)ccc[uhcl 13. ?IKNI
securing the clips and tamper-indicating tape will be placed on the box. Drums containing freeliquids will be stored on spill containment pallets or within plastic-lined bermed pits.
Appropriate labels and relevant information will be marked on each container with an indeliblemarker. The information will be legible and clearly visible for inspections. Pertinent data ma~be written on duct tape or a blank adhesive label affixed
The containers will be labeled with information such as:
● RAD Track label or drum identification number,● Type of waste in container.s Location waste was derived from.● Date of accumulation.
to the side of the container.
as i.appropriate.
● Awaiting/pending analysis if sampling is required.● The words “Hazardous Waste” on containers of hazardous and mixed waste.
2.3.8 Site Control
Closure activities for CAU 254 will involve a controlled work area in which only qualifiedpersonnel may enter and only with the permission of the Construction Site Superintendent or theSHSO. Personnel entering this “exclusion zone” (EZ) must be essential to the immediate taskand wear appropriate PPE. Personnel qualifications and PPE required for the EZ may bedowngraded or upgraded by the SHSO as site conditions change. Personnel entering or exitingthe EZ will pass through the contamination reduction corridor (CRC) or “hot line” where theywill don or doff appropriate PPE, and receive radiological frisking, if necessary. The areaoutside the EZ and CRC will be considered the support zone. Warning signs will be posted atkey locations in the support zone directing all personnel arriving at the site (including visitors) toreport to the Construction Site Superintendent or SHSO. Additional signs will be posted alongthe EZ boundary to warn personnel not to enter.
Unintentional release of contaminants beyond the EZ will be minimized though use of PPE,radiological frisking, equipment decontamination, and minimization and suppression of dustgeneration. All equipment and materials will be radiologically surveyed prior to removal fromthe EZ. Waste management areas (WMAS) will be located in the support zone, adjacent to theEZ. The proposed EZ. CRC, and support zone are shown in Figure 3.
2.3.9 Personnel Training
All personnel will be required to read and understand the SSHASP prior to working tit the si[c.A tailgate safety briefing will be conducted every day before the start of work, and, as needed. asactivities or circumstances change. In addition. all personnel entering the EZ will require U.S.Occupational Safety and Health Administration Hazardous Waste Operations and EmergencyResponse initial 40-hour training, current 8-hour refresher training, and current RadiologicalWorker II training. All personnel responsible for packing LLW or mixed waste will be required
25
CAP - CAU No 254
Arcd ?5 R-MAD Dccon Fdclllt)Scc[ion DETAILED SOW
Rcvlslml (1[)wL! [)cccn)her 13 ?[)()()
to read and understand BN OP-215 1.304. “Radioactive Waste Tracking, Himdling, andManagement at the NTS” (BN, 2000a).
2.4 REMEDIATION VERIFICATION
Site remedia(ion will consist of removal of sediment, soil, building materials, and concretesurfaces that are above clean-up levels for organic compounds. metals, and radiologicalcontamination. Verification will consist of confirming tha[ no contamination above clean-uplevels remains. Verification radiological surveys will confirm that the remaining building shell(if left standing), concrete foundation, and soil excavations me below surfxe contiiminu[ionrelease levels specified in the RadCon Manual (DOE/NV. 1999 b). In addition, verificationsamples will be collected and analyzed for radioisotopes and the following COCS (see Table 3):
● Five verification samples of the concrete foundation will be collected after the uppermostsurface has been removed and radiological surveys no longer indicate remaining “hotspots.” The site characterization investigation identified two locations that exceeded the100-mg/kg NDEP action level for petroleum hydrocarbons (510 mg/kg in sample25400549 and 150 mg/kg in sample 25400563). Two other locations exceeded (he1-mg/kg PRG for Arochlor- 1260 (3.0 mg/kg in sample 25400545 and 2.4 mg/kg insample 25400559). One other sample exceeded the 2.7-mg/kg PRG for arsenic(16 mg/kg in sample 25400558). The two verification samples for petroleumhydrocarbons will be analyzed for TPH. The two verification samples for Arochlor- 1260will be analyzed for PCBS. The one verification sample for arsenic will be analyzed fortotal metals.
● Two verification samples of soil will be collected after contaminated sediment and soilbeneath the openings in the northeast and southwest pads have been removed andradiological surveys no longer indicate remaining “hot spots.” In sediment samples fromboth openings, radionuclides exceeded the “sum of fractions” level and the PRGs forboth Arochlor- 1260 and arsenic. In the deepest characterization sample from eachopening, 25400546 (O to 0.75 m [0 to 2.5 ft] depth) and 25400548 (O to 0.45 m[0 to 1.5 ft] depth), only Arochlor- 1260 was present above the PRG. The soil beneath thenortheast and southwest pad openings will be excavated to depths of at least 0.75 and0.45 m (2.5 and 1.5 ft), respectively, and deeper if necessary as indicated by visualindications (staining or discoloration) or radiological survey. The two verificationsamples will be analyzed for PCBS (see Table 3).
Quality control (QC) samples will be collected and will include a blind duplicate, matrixspike/matrix spike duplicate, and rinsate blank (see Table 3). Samples will be collected by handusing decontaminated stainless-steel scoops, and placed into proper containers. Excavationdepths are not expected to exceed a depth of 1.2 m (4 ft), but may be necessary to removecontamination. Personnel will not be allowed in excavations deeper than 1.2 m (4 ft) and sosamples will be collected from a decontaminated bucket of the excavation equipment ifnecessary. Verification samples will be identified by the original characterization samplenumber (for example, “25400549”) and adding suffix “-V 1.“
26
CAP CAL’ N,, 25-I
Arcd 25 R-MAD [km EJCIIII)
SCCIIOII DtI~A[lXD SON
Rcvlslcm ()D.i[c [)ccunbcl I ~ 2000
------ . . . . . . . . . . . -- -------- .-. -.. . . . . . . --I ABLE 3: SUMMAHY Ul_ Vtf+l~IUA I IUN SAMPLES
SAMPLEIDENTIFICATION
SAMPLE TYPE<
25400549-V1 Regular
25400563-V125400545-V125400559-V125400558-V125400546-V125400548-V1
TBD
RegularRegularRegularRegularRegularRegular
QC Duplicate
SAMPLE MATRIX I ANALYTICAL PARAMETER
Solid - Concrete ITPH and Rad Isotopes
Solid - ConcreteSolid - Concrete
Solid - ConcreteSolid - ConcreteSolid - SoilSolid - Soil
Solid - Soil
TPH and Rad IsotopesPCBS and Rad Isotopes
PCBS and Rad IsotopesMetals and Rad IsotopesPCBS and Rad IsotopesPCBS and Rad Isotopes
TBDTPH, PCBS, Total Metals, Rad
25400000-V1 CIC Rinseate Liquid - WaterIsotopes
1 1 I
i double volume of one regular sample will be collected for QC matrix spike/matrix spike duplicatA duplicate of one regular sample will be collected for QC duplicate analysis.
TPH (EPA SW846 Method 8015B Modifieda) sample in 250 ml glass jar.
PCB (EPA SW846 Method 8082’) sample in 250 ml glass jar.
Total Metal (EPA SW846 Method 6010B/7470Aa and 7471 A“) in 250 ml glass jar,
Radiological Isotope sample in 500 ml nalgene bottle:
Isotopic Uranium (ASTM 3972-97b and ASTM Cl 000-90’)
Isotopic Plutonium (ASTM 3865-97” and ASTM Cl 001 -90’)
Strontium-90 (ASTM D5811 -95’)
Gamma Spectrometry (EPA 901.1 g and HASL 300’)
a - EPA Test Methods for Evaluating Solid Waste, 3rd Edition, Parts 1-4 (EPA, 1996)b - Standard Test Method for for Isotopic Uranium Water by Radiochemistry (ASTM, 1997a)
c - Standard Test Method for RadioChemical Determination of Uranium Isotopes in Soil byAlpha Spectroscopy (ASTM, 1995b)
d - Standard Test Method for Plutonium in Water (ASTM, 1997b)
e - Standard Test Method for Radiochemical Determination of Plutonium in Soil by AlphaSpectroscopy (ASTM, 1995a)
f - Standard Test Method for Strontium-90 in Water (ASTM, 1995c)
9- prescribed procedure for Measurements of Radioactivity m Drinking Water (EPA, 1980)h - Environmental Measurements Laboratory Procedures Manual (DOE, 1997)
27
CAP CAL! No ?54
Aru 25 R-MAD Duwn }.ic II II\SCCIIOI1 DE”I’AI LED Soj\
Ilc\l.l, )11(1
l)J(c I)ccemlwr 13. 2(NHI
If verification sample “25400549-V 1” exceeds the NDEP or PRG limit, additional concrete,sediment, or soil will be removed and another verification sample. “25400549-V2”” will becollected and analyzed. All samples will be cooled [o 4° Celsius (40) Fahrenheit) and transportedto the BN Environmental Technical Services under strict chain-of-custody procedures.
2.5 PERMITS
This project may require, but is not limited to. the following permits:
● REOP Permit establishes a mechanism that provides DOE/NV authorization and controlof real estate and the operations conducted under the purview of DOE/NV.
● Excavation, Trenching, and Demolition Permit documents coordination and concurrencewith appropriate NTS departments.
● Hot Work Permit documents personnel and their roles, responsibilities, and trainingneeded to perform hot work.
A copy of these permits will be kept at the project site by the construction superintendent,technical lead, or SHSO.
9
u
w
28
CAP CAIJ Nc, ?$lArcu ?~ R-hfAD ~CCOll f. JcIIIl>
SCCIIOI) S(’HEDLJLE.
kc~lslorl ()
1).itc [)cccmbcr 13, 2000
3.0 SCHEDULE
3.1 PROJECT SCHEDULE
The schedule provided here is tentative. The schedule may require modifications if conditionsexist that are outside the assumptions on which the schedule is developed. The DOE/NV willkeep the NDEP appraised of any conditions that may impact the project. In the even[ that the
project schedule requires modifications, the DOE/NV will consult with NDEP personnel prior to
initiating any changes.
3.2 FIELD WORK CLOSURE SCHEDULE
The following tentative schedule is planned for field work:
● Prepare for Field Work January-February 200”1
9 Remediation Field Work March-May 2001
● Management and Disposal of Waste March-August 2001
Field work will be done in the safest and most efficient manner possible. Sufficient flexibilityhas been placed in the project schedule to account for minor difficulties (weather. equipmentbreakdown, etc.). The schedule may require modification if conditions exist that are outside theassumptions on which the schedule was developed.
29
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30
CAP CAIJ No 254
Aru 25 R-MAD km!] FWIIII)
SccIIon REFERENCES
Rck 1>1{)11()I)dlc l)cccmbcr 13. 2(MHI
4.0 REFERENCES
American Society for Testing and Materials, 1995a. Standard Test Method for RadiochemicalDetermination of Plutonium in Soil by Alpha SDectrosco~y, C1OOI -90, Philadelphia. PA.
American Society for Testing and Materials, 1995b. Standard Test Method for RadiochemicalDetermination of Uranium Isotot)es in Soil bv Alpha SDectroscoDy, C 1000-90.Philadelphia, PA.
American Society for Testing and Materials, 1995c. Standard Test Method for Strontium-9(1 inWater D5811 -95, Philadelphia, PA.— ~
American Society for Testing and Materials, 1997a. Standard Test Method for Isotopic Uraniumin Water by RadiochemistrY, D-3972-97, Philadelphia. PA.
American Society for Testing and Materials, 1997b. Standard Test Method for Plutonium inWater, D-3865, Philadelphia, PA.
ASTM, see American Society for Testing and Materials.
BN, see Bechtel Nevada.
Bechtel Nevada, 1995. Nevada Test Site Performance Obiective Criteria for Certification ofNonradioactive Hazardous Waste, Rev. O, G-E 11/96.01, Las Vegas, NV.
Bechtel Nevada, 1999. “Waste Management and Permitting,” Rev. O, Company DirectiveCD-0442.01 O, Las Vegas, NV.
Bechtel Nevada, 2000a. “Radioactive Waste Tracking, Handling, and Management at the NTS,”Rev. 2, Organization Procedure OP-215 1.304, Las Vegas, NV.
Bechtel Nevada, 2000b. Record of Communication between Curtis Obi (BN) and Jeff Johnson(IT Corporation) regarding sampling and grouting of acid waste floor drains (e-mail),Las Vegas, NV.
DOE, see U.S. Department of Energy.
DOE/NV, see U.S. Department of Energy, Nevada Operations Office.
EPA, see U.S. Environmental Protection Agency.
Federal Facility Agreement and Consent Order. 1996. Agreed to by the Nevada Division ofEnvironmental Protection, the U.S. Department of Energy, and the U.S. Department ofDefense.
31
CAP CAU No 254
Areii 25 R-MAD Decor] I-oclll!}
Secvlon REFERENCES
Revlslon ()1).llc [)cccrl)tw( 13. ?()()(1
FFACO. see Federal Facility Agreement and Consent Order.
NAC, see Nevada Administrative Code,
NDEP, Nevada Division of Environmental Protection.
Nevada Administrative Code, 1996. NAC 445A, “Corrective Action.” As adopted by theNevada Environmental Commission, September, Carson City, NV.
Nevada Division of Environmental Protection. 2000. Letter dated July 11. XXX),from Paul J.Liebendorfer (NDEP) to Runore C. Wycoff (DOWNV). “Approval of Final CorrectiveAction Decision Document, Corrective Action Unit 254, Area 25 R-MADDecontamination Facility, Federal Facility Agreement and Consent Order,” U-son City,NV.
U.S. Department of Energy, 1997. The Procedures Manual of the Environmental MeasurementsLaboratory, Vol. 1, 28[hEdition, HASL-300.
U.S. Department of Energy, 1999. Guidance Booklet on Stora~e and Disposal ofPolvchlorinated Bi~henvl (PCB) Waste, DOE/EH-4 13-9914, Washington, D.C.
U.S. Department of Energy, Nevada Operations Office, 1997a. Permit for Area 6 HydrocarbonDis~osal Site Class 111Industrial Solid Waste Dis~osal Site, Permit SW/ 13/097/02(revised June 2000), Las Vegas, NV.
U.S. Department of Energy, Nevada Operations Office, 1997b. Permit for Area 9 U 10CDis~osalSite Class III Industrial Solid Waste Disposal Site, Permit SW/1 3/097/03 (revised June2000), Las Vegas, NV.
U.S. Department of Energy, Nevada Operations Office, 1999a. Corrective Action lnvesti~ationPlan for Corrective Action Unit 254: Area 25 R-MAD Decontamination Facilitv, Nevada
Test Site, Nevada, DOE/NV--557, Las Vegas, NV.
U.S. Department of Energy, Nevada Operations Office, 1999b. NV/YMP Radiological ControlManual, DOE/NV/l 1718-079, Las Vegas, NV.
U.S. Department of Energy, Nevada Operations Office, 2000a. Addendum to Corrective ActionDecision Document for Corrective Action Unit 254: Area 25 R-MAD DecontamintitionFacilitv. Nevada Test Site. Nevada, DOE/NV-619-ADD, Las Vegas, NV.
U.S. Department of Energy, Nevada Operations Office, 2000b. Corrective Action DecisionDocument for Corrective Action Unit 254: Area 25 R-MAD Decontamination Facilitv,Nevada Test Site. Nevada, DOE/NV--6l9, Las Vegas, NV.
U.S. Environmental Protection Agency, 1980. Prescribed Procedures for Measurements ofRadioactivity in Drinking Water, EPA-600/4-80-032, Washington, D.C.
CAP CA(} N() 254
Arcd ?S R.NIAD Decor] }. JCIIII$
Sec[,[m REFERENCESuc\l\ loll ()
[).IIc I)ccenlhul 13, 2( I(J(I
U.S. Environmental Protection Agency, 1996. Test Methods for EvalutitinS Solid Waste,Phvsical/Chemical Methods. SW-846, CD ROM PR97-5(]1928GE1 which con[tiinsupdates for 1986, 1992, 1994, and 1996, Washington, D.C.
U.S. Environmental Protection Agency, 1997. Title 40 Code of Federal Regulations 268.48.“Universal Treatment Standards,” Washington, D.C.
U.S. Environmental Protection Agency, 1998a. Title 40 Code of Federal Regulations 261Subpart C--Characteristics of Hazardous Waste. Washington. D.C.
U.S. Environmental Protection Agency, 1998b. Title 40 Code of Federal Regulations 261Subpart D--Lists of Hazardous Wastes, Washington, D.C.
U.S. Environmental Protection Agency, 1999a. Region 9 Preliminary Remediation Goals(PRGs) 1999. San Francisco, CA.
U.S. Environmental Protection Agency, 1999b, Title 40 Code of Federal Regulations 761.62.“Disposal of PCB Bulk Product Waste,” Washington, D.C.
33
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34
APPENDIX A
PROJECT ORGANIZATION
The following are the DOE/NV project contacts:
Runore C. WycoffDivision DirectorNevada Environmental Restoration Projec[U.S. Department of Energy. Nevada Operations OfficeP.O. Box 98518Las Vegas, NV 89193-8518(702) 295-0250
Janet L. Appenzeller-WingProject ManagerIndustrial Sites ProjectU.S. Department of Energy, Nevada Operations OfficeP.O. Box 98518Las Vegas, NV 89193-8518(702) 295-0461
The identification of the project Health and Safety Oftlcer and the Quality Assurance Officer canbe found in the appropriate DOE plan. However, personnel are subject to change and it issuggested that the Project Manager be contacted for further information. The Task Manager willbe identified in the FFACO Biweekly Activity Report prior to the star[ of field activities.
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APPENDIX B
COMMENT RESPONSE DOCUMENTATION
DOCUMENT REVIEW SHEET
Document Title/Number: Corrective Action Plan for Corrective Action Unit 254: Area 25 R-MAD Decontamination FacilityDocument Date: November 2, 2000Revision Number: OOriginator/Organization: Bechtel Nevada Environmental Restoration.Date Comments Due: December 1.2000Reviewer/Organization: John A. Won g. Environmental Scientist. NDEP
CommentNumber/ Type’ Comment Comment Response Accept
Location
1. M Correct the typographical error in the second Comment accepted. The typographical Y
Executive sentence (replace or with ofi. error has been corrected.
Summary.3rdparagraph
Page 1 of 5
DOCUMENT REVIEW SHEET
CommentNumber/ Type’ Comment Comment Response AcceptLocation
2. M In the final CADD, approved on July 11, Comment accepted. An addendum [o the Y
Executive 2000, DOE/NV selected corrective action approved CADD has been issued withSummary, alternative - Unrestricted Release revised cost estimates and the selection
4[hparagraph Decontamination and Verification Survey. of Alternative 3. The text in the CAPIn the CAP, DOE is proposing possible will be revised to reflect the change.
demolition of Building 3126. Anydeviations from the approved CADD wi!lrequire an addendum to that document. Theaddendum should describe in detail activitiesassociated with dismantling Building 3126.Failure to amend the CADD will result inNDEP disapproving the CAP since theapproved CADD will not have beenimplemented.
o C[mlmcn[ “T>pcs: hl=hltindator! S= Suggested Page 2 of 5
.
DOCUMENT REVIEW SHEET
CommentNumber/ Type” Comment Comment Response AcceptLocation
3-. M NDEP opposes the position taken in this Comment accepted. Text has been YSec. 1.1. paragraph. During review of both the CAIP revised to handle the solvents as F-listedpage 12, (Liebendorfer: Wycoff, August 17, 1999) and wastes.
I” paragraph CADD (Liebendorfer:Wycoff, July 11,2000), NDEP commented that wastesassociated with the subject compoundswould need to be handled as listed wastes.The detection of these compounds andsolvents at the decontamination facility is anindication that the solvents were used fortheir intended purposes; therefore, it isappropriate they be listed versuscharacteristic hazardous waste.
4. M ‘k.. the effort and cost to decontaminate . . .“ Comment accepted. An addendum to the Y
Sec. 2.1. Decontamination is already part of the approved CADD has been issued with
page 17, selected alternatif’e. If dismantling Building revised cost estimates and the selection
I” paragraph 3126 is a possibility, an addendum to the of Alternative 3. The text in the CAP
3r~sentence previously -appro~’ed CADD needs to be mill be revised to reflect the change.
submitted.
ii (-(wrlment Types. hl=Nlandal{wy S=suggesled Page 3 of 5
DOCUMENT REVIEW SHEET
CommentNumber/ Type” Comment Comment Response AcceptLocation
5. M What is meant by, “. . . unless radiological Comment accepted. Text has been Y
Sec.2.1 .2.3 instrumentation is available . . .“? Will the revised to state more clearly that organic
page 18, droppings and vegetation be screened or material exists inside the building
last sentence not? If the materials and waste are not including animal droppings and rootsLLW, they should not be disposed as such. from outside plants that have invaded the
restroom. This organic matter is notsuspected of being LLW but will besurveyed with field instruments todetermine if any waste is radiologicallyimpacted.
DOCUMENT REVIEW SHEET
CommentNumber/ Type’ Comment Comment Response AcceptLocation
6. M Same as comment 5. Comment accepted. Text has been YSec.2.1 .2.6, revised to state more clearly that (he
page I9, CADD determined much of the interiorsecond bullet lumber building materials to be mixed
waste. Wood materials will be surveyedwith field instruments to verify they areradiologically impacted.
7. M What will be used to solidify the fluid prior Comment accepted. Text has been YSec.2.3.7, to disposal if fluids are determined to be revised to state that antifreeze/coolant
page 25.1” uncontaminated and oil are the only liquids expected.paragraph, The antifreeze/coolant was determined in
last sentence the CADD to be hazardous waste thatalso exceeds the UTS for arsenic. Anyremaining antifreeze/coolant will requiretreatment before disposal. The CADDdetermined the oil to be u’ithinbackground radiological levels and anyremaining oil will be either recycled orappropriately disposed.
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DISTRIBUTION LIST
DISTRIBUTION LIST*Provide copy of initial distribution or Revision (); remainder of list gc[s Revision () if approvedwithout changes. The entire list receives Revision 1, if issued.
Nevada Division of Environmental Protection
Paul LiebendorferBureau of Federal FacilitiesDivision of Environmental Protection333 W. Nye Lane, Room 13BCarson City, NV 89706-0866
Mike McKinnonBureau of Federal FacilitiesDivision of Environmental ProtectionSawyer State Building555 E. Washington, Suite 4300Las Vegas, NV 89101-1049
U.S. Department of Enercv
Janet Appenzeller-WingEnvironmental Restoration DivisionU.S. Department of Energy, Nevada Operations OfficeP.O. BOX 98518 M/S 505Las Vegas, NV 89193-8518
Sabine T. CutiisEnvironmental Restoration DivisionU.S. Department of Energy, Nevada Operations OfficeP.O. BOX 98518 M/S 505Las Vegas, NV 89193-8518
Sabrina LawrenceEnvironmental Restoration DivisionU.S. Department of Energy, Nevada Operations OfficePO. BOX 98518 M/S 505Las Vegas, NV 89193-8518
U.S. Department of EnergyOffice of Scientific and Technical InformationP.O. Box 62Oak Ridge, TN 37831-0062
2 (Controlled)*
1 (Controlled)*
1 (Uncontrolled)*
1 (Uncontrolled)*
1 (Controlled)*
1 (Uncontrolled,electronic copy )
DISTRIBUTION LIST (continued)
U.S. De~artment of Energy (continued)
U.S. Department of EnergyNevada Operations OfficeTechnical Information Resource CenterP.O. BOX98518, M/S 505Las Vegas, NV 89193-8518
Manager, Southern NevadaFFACO Public Reading RoomP.O. BOX 98521, M/S NLV040Las Vegas, NV 89193-8521
Manager, Northern NevadaFFACO Public Reading RoomNevada State Library and Archives Federal Publications100 North Stewart StreetCarson City, NV 89701-4285
Bechtel Nevada
Correspondence ControlBechtel NevadaP.O. BOX98521 M/S NLVO08Las Vegas, NV 89193-8521
Environmental Management LibraryBechtel NevadaP.O. BOX98521. M/S NLV080Las Vegas, NV 89193-8521
Ann HeidemaBechtel NevadaP.O. BOX98521, M/S NLV022Las Vegas, NV 89193-8521
Wayne JohnsonBechtel NevadaP.O. BOX98521, M/S NTS306Las Vegas, NV 89193-8521
1 (Uncontrolled)
1 (Controlled) &1 (Uncontrolled)
1 (Uncontrolled)
1 (Uncontrolled)*
1 (Uncontrolled) *
1 (Uncontrolled) *
1 (Uncontrolled) *
DISTRIBUTION LIST (continued)
Ilechtel Nevada (continued)
Steve Nacht I (Uncontrolled)*
Bechtel NevadaP.O. BOX 98521 M/S NTS306Las Vegas, NV 89193-8521
Dennis GustafsonBechtel NevadaP.O. BOX98521 M/S NTS306Las Vegas, NV 89193-8521
Curtis ObiBechtel NevadaP.O. BOX 98521 M/S NTS306Las Vegas, NV 89193-8521
Jan CowleyBechtel NevadaP.O. BOX 98521 M/S NTS 110Las Vegas, NV 89193-8521
Shannon ParsonsBechtel NevadaP.O. BOX 98521 M/S NTS110Las Vegas, NV 89193-8521
IT Corporation
Brad JacksonIT CorporationP.O. BOX 93838, M/S NLV439Las Vegas, NV 89193-3838
IT FFACO Support OfficeIT CorporationP.O. BOX 93838, M/S NLV439Las Vegas, NV 89193-3838
1 (Uncontrolled)*
1 (Uncontrolled)*
1 (Uncontrolled)*
1 (Uncontrolled)*
2 (Uncontrolled) *
1 (Controlled)
,..
RECORD OF TECHNICAL CHANGE
Technical Change No. 1 Paoe ] of 3=——
Project/.TobNo. WBS 104010306140 Date 5/18/2001
Projec&UobName CAU 254. Area 25 RMAD Decontaminate ion Facili tt’
The following technical changes (including justification) are requested by:
Dennis Gwafson Task Manager
(Fhme) (Title)
The project time will be Unchan~ed)..
Applicable Project-Specific Document(s): Corrective Action Plan for Corrective Action Unit 254, Area 25
Decontamination Facility Nevada Test Sire, Nevada
.Approvcd By
hldLlstriai Sites projecI
EnvironnlellLll Restoration Division
C[ienl No[ified Yes_ No_ Dim
NDEP Concurrence YU —No— Date
ConWiIctChangeOrder Required Yes_ No
Contract Chmge Order No.
TechmicalChangeNo. 1
Project/Job No. 799417.00040035
ProjectiJobName_ CAU254.Area25 IUvMDDecontaminationFaciliW
Pa:e 2 of 3—.
Date 5/18/2001
This Record of Technical Change describes additional remediation verification work to be performed at
CAU 254 under Section 2.4, Remediation Verification, of the CAP to ensure clean closure of this CAU.
The following paragraph describes the additional work to be pelformed:
Radioactive impacted soil adjacent to the decontamination pads (see attached figure) will be excavated
and disposed at the appropriate Nevada Test Site permitted land fill. Soil samples will be collected for
analysis to verify clean-up criteria have been met. The soil samples will be analyzed by Gamma
Spectrometry since Cesium-137 (CS-137)is the predominate radionuclide in the soil and can be easily
quantified using Gamma Spectrometry. AII other raclionuclides m-ea fraction of the CS-137 activity and
can be calculated from scaling factors developed from Area 25 Deactivation and Dismantling (D&D) waste
streams. The average radionuclide concentrations of all soil samples collected will not exceed 7 pico Curies
per gram (pCi/g) for CS-137, and no individual sample will exceed 21 pCi/g for CS-137. If this criterin is
not met, additional excavation and verification sampling will be done.
6-in Waler Line 1
\
NORTH YARD
>) SOUTH YARD:)
47 t
,.
ft
>..—.—w-—-—-—x—--—-—-x--—-—-—-~
Ii/~y$+-.-—.—x--—-.-—.--x-—.—--.—r—.—
34ft<0
.g ; ~c,.mc%
z“2 g~=
$:v .2,= g
Ag
4-in Vitrified Clav Poe
‘———~R=o=iv~W=er—————
SEIELD
10X12= Izosf20x34= 170s!47x18= 846sf /47X38= 046 sf27x12=
/
324 sfTdal = 2306sf
-;VA 0,5-ft thick layer is1153cf, ar43cy.Witha l,25flufffac:or1441 cfor54cy,
Modified from CADD (DOE/NV, 2000)
PRELIMINARY ESTIMATE OF AIU3AL EXTENT OFLOW-LEVEL RADIOACT~ WASTE SOIL TO BE REMOVED
AT CAU 254: AREA 25 R-MAD DECONTAMINATION FACILITY