final status survey report volume iii - pond parcel excavation backfill … · 2020-01-04 ·...

ATTACHMENT ATABLE OF CONTENTS

* FIGURE A-1 Gross Gamma Background and Scanning Survey Results - Lift 1








* FIGURE A-9 Systematic Soil Core Sampling Locations

QA\P4000NPA4072\PSS Repotts\Volurm IIP\Suve Unit FSSB 00'Atiaehmern A\Attachment A toc.doc

Bai

Alachmelt A, Figure A-1Gross Gamma Batkgrouod and Scamning SuNey Results

ckgrounds are 1 minute readings. SuNey Unit Kalser*FSSB-004 LiR No. I

CPM Nal#3

82000

77000

72000

67000

62000

57000

52000

47000

42000

Scanning readings are recorded at I second intervals.

n 6 ,r . . 6.,>S.,;:: ~~~~~CI-pp_',... > i..j.--"; '' ' _ -

Alachment A, Figure A-2 0Gross Gamma Background and Scarninig SuNey Results

SuNey Unit Kaiser-FSSBO004 -R No. 2Backgrounds are 1 minute readings.

CPM N81 �

�22'��

99000

94000

89000

84000

79000

74000

69000

64000

59000

54000

49000

44000

c 1-7

W_2

Scanning readings are recorded at 1 second intervals.

ANtahmeot A, FigureA 3Gross Gamma Background and Say irig SuNey Results

Svey Uniq t Kaiser*FSSB 004 -It No 3

iCPMN8I# 3 & #6122000

117000

112000

107000

102000

97000

92000

87000

82000

77000

72000

67000

62000

57000

52000

at 1 second intervals. 4700042000

C-L%

40-'%

Scanning readings are recorded;

Backgrounds are 1 minute readings.

Iwld-�

Allachment A, Figure A4Gross Gamma Background and Scanning Survey Results

Survey Unit Kaiser-FSSB*004 Lift No. 4CPM Nal # 6

12000

107000

102000

97000

92000

87000

82000

77000

72000

67000

recorded at 1 second intervals.62000

C-Ze

e "'ICP

Scanning results are

Backgoundi

Attachment A, FigureA5 AGross Gamma Background and Scanning Survey Results

Survey Unit Kaiser-FSSB*004 Lit No. 5s are 1 minute readings.

CPM Nal # 6125000

120000

115000

105000

i95000

90000

85000

80000

75000

7000065000

60000

55000Scanning readings are recorded at 1 second intervals. 50000

45000

C, O~


c-b-_

D__

Ntachmetl , Figure 6Gross Gamma Backgroupd and Scanning SuNey Results

Suqey Unit Kaiser*FSSB004 LifR No. 6CPM Nal # 6

97000

92000

87000

82000

77000

72000

67000

62000

| 10!57000

52000

47000

horded at 1 second intervals.42000

Cn

aj4~

Scanning readings are rec


,_*

1%.

Attachment A, Figure A-7Gross Gamma Background and Scanning Survey Results

Survey Unit Kaiser-FSSB-004 -Lift No. 7

CPMNal#4&#6

107000

102000

97000

92000

87000

82000

77000

72000

67000

62000

5 are recorded at 1 second intervals. 57000

52000 c

.0-9�

Scanning readings

C +Z

0 Attachment A, Figure A-8 0Gross Gamma Background and Scanning Survey Results

Survey Unit Kaiser-FSSB-004 -Lift No. 8Backgrounds are 1 minute readings.

CPM Nal # 6rX

.nw--P, MM--

VW-01�

102000

97000

92000

87000

82000

77000

72000

67000

62000

57000

52000

19-- ajd--"�pf-�

.0-W-111,

M�- -- 25P-TV;pown- -- -�

.- , V M " ,�.:e�

Scanning readings are recorded at 1 second intervals.C-b--3,

1 _

3

7

II

L

hN -L =

h =

91 4.5m12.6m 30

SCALE - FEET0 30

�- - -- Mmmmmml

AREA = 1,647m2 9 0SCALE - METERS

9

1

* SYSTEMATIC SOIL CORE SAMPLING LOCATION SYSTEMATICSURVEY

FIGURE A-9SOIL CORE SAMPLING LOCATIONSUNIT KAISER - FSSB-004BASED ON RANDOM START POINT AND

AN EQUAL DISTANT TRIANGULAR GRID FINAL STATUS SURVEYTHORIUM REMEDIATION PROJECT

TULSA. OKLAHOMA FACILITY* RANDOM START POINTPREPARED FOR

KAISER ALUMINUM & CHEMICAL CORPORATION,- TULSA, OKLAHOMA

APPROVE ED- 3 -3 -CxCHECKE4K6Jo --3- 5- obDRAWN DEB 01/30/06

DRAWING NUMBER

PA4072074I ft!!n E&R

______________________________________ &

,� ��IL�II',o -AZI I

ATTACHMENT BTABLE OF CONTENTS

* Soil Survey Unit Worksheet No. 1


Q:\P4000\PA4072\FSS RcportsWoolume IlI\Suvey Unit FSSB 004\Attachrnent B - Soil Survey Unit Worksheets\Attachment B tocrdoc

Soil Survey Unit Work Sheet No. IFinal Status Survey

Thorium Remediation ProjectTulsa, Oklahoma Facility

Kaiser Aluminum & Chemical Corporation

1. Soil Survey Unit: Kaiser-FSSB-004

2. Description: Pond Parcel Excavation Backfill Unit

3. Net Th-232 Acceptance Criteria (pCilg): 31.1

4. Dimensions (m): Approximately 45 meters x 36 meters; Area, A (m2):..1647

5. Estimate of Gross Gamma Scan Background Readings (cpm)

Average: 80.000 Minimum: 50.000 Maximum: 100,000

6. Based on the maximum background gross gamma scan reading, the scan MDC (Minimum Detectable

Concentration of Th-232), the corresponding N (Minimum Number of Required Samples) and L (Triangular

C;rid Node Length) for a standard 2,000 m2 Class I survey unit are:

* Gross Gamma Scan MDC (pCi/g): 5.7

* Minimum Number of Samples (N): 9 Triangular Grid Node Length (L): 16.0 m

7. If the area of the Survey Unit is less than 2,000 n2 , recalculate the corresponding Triangular Grid Node

Length (LI) for the Survey Unit Area (A), using the following formula: LI = (A/(0.866 x 9 ))'2: 14.5

8. If N is greater than 9 and the A is other than 2,000 in2, recalculate the corresponding Triangular Grid Node

Length (LI) using the following formula LI = (A/(0.866 x N))"/2: N/A

S'. If A is greater than 2,000 n 2 and N is equal to 9, recalculate the minimum number of samples (Ni)

corresponding to a Triangular Grid Node Length (L) of 16 m using the following formula NI = A / (0.866 x

162), N,: N/A

10. Calculate the height (h) of the equilateral triangle with side length equal to L (or (LI) using the following

formula: h = ((L2 - (U2)2 )82: 12.6 m.

(Q:AP4000\PA4072\FSS Repots\Volume lIrSurvey Unit FSSB 04\Attachment B - Soil Survey Unit WorksheetuiSoil Survey Unit Worksheet No. I doc

I Soil Survey Unit Worksheet No. 2Random Number Generator for Start Point

Final Status SurveyThorium Remediation Project

Tulsa, Oklahoma FacilityKaiser Aluminum & Chemical Corporation

SURVEY UNOT: KAISER-FSSB-004

RANDOM START POINTx axis. ( Meters) y axis ( Meters)

40 1 lower boundupper bound

x axis y axis

45 36

cn

North3

(0,0) x axis

Q:\P4000\PA41)72FSS; ReportsVdoure IrSurvey Unit FSSB 004\Attachment B -Soil Survey Unit Worksheets'Soil Survey Unit Worksheet No. 2

ATTACHMENT C

LABORATORY ANALYTICAL RESULTS

Outreach- 'laboratory

i amW NorthAspenAL #Token Arrow. OK 74012(918) 251-2515FAX (918) 251.0008

tilc 10jbIrIt 0 IJune 7, 2005

David WeyantKaiser Aluminum & Chemical7311 E. 41st StreetTulsa, OK 74145

Project: Kaiser Thorium Remediation PA-4000-4072OUTREACH LAB ID: 20050396

Dear Mr. Weyant:

Please find enclosed the analytical report for your samples received in our laboratory onMay 26, 2005. Thirty three soil samples were received in good condition and analyzedfor Thorium-232. by Gamma Spectroscopy without drying and grinding and PercentMoisture with an expedited 5 work-day turn. Results were faxed June 7, 2005.

All Quality Control for the requested analyses is reported on the analytical report. Thelaboratory control standard and duplicates for all analyses were within method controllimits.

Your samples will be returned as requested.

Thank you for choosing Outreach Laboratory and if you have any questions, please callUs at 918-251-2515.

Laboratory

ODEQ ID #9517I)EQ LIC.:#27522-01

CERT. ID #OK001

Client:Client Project:Lab Number:Date Reported:Date Received:Page Number:

Kaiser AluminumThorium Remediation

200503966/7/05

5/26/05I of 9

Outreacl'Aboratoiy

LuI North ASpen.. oken Arrow. OK 74012(918) 251-2515FAX (918) 251-0008

Analytical ReportResult UnitsMethod DL Prep

DateAnalysis AnalystDate

Lab ID:Client ID:Date Sample]:Matrix:

20050396-01K-6755/25/05 10:05:00 AMSoil

Th-232 HASL 300Radiochemical Analyses

22.5 +/- 0.482 pCi/g 0.550 5/27/05 SD

Percent MoistureInorganics Analyses

ASTM D2216-92 16.6 % 5126105 5/27/05 RT

Lab ID:Client ID:Date Sampled:Matrix:

20050396-02K-6765/25/05 10:17:00 AMSoil


22.6 +/- 0.534 pCi/g . 0.990 5/27/05 SDInorganics Analyses

ASTM D2216-92 20.1 %Percent Moisture 5/26/05 5/27/05 RT


Th-232

Percent Moisture

20050396-03IK-6775/25/05 10:29:00 AMSoil

Radiochemical Analyses* HASL 300 22.8 +/- 0.607 pCVg

Inorganics AnalysesASTMD2216-92 15.9 %

0.972 5/27/05 SD

5/26/05 5/27/05 RT


Th-232

Percent Moisture

20050396-041"678.5/25/05 10:41:00 AMSoil

Radiochernical Analyses* 22.1 +1- 0.522 pCi/gHASL 300

ASTM D2216-'

0.573 5 5/27/05 SD

92Inorganics Analyses

16.5 % 5/26105 5/27/05 RT

BDL Bclow Daection Limit



200503966/7/05

5/26/052 of 9

Outreadclaboratory

t North Aspenj .,roken Arrow, OK 74012

(918) 251-2515FAX (918) 251-0008


DateAnalysisDate

Analyst


20050396-05K-6795/25/05 10:43:00 AMSoil

Radiochemical Analyses18.6+/-0.418 pCi/gTh-232 HASL 300 0.513 5/27/05 SD

Inorganics AnalysesASTM D2216-92 17.3 %Percent Moisture 5/26105 5/27/05 RT


Th-232

20050396-06K-6805125/05 10:53:00 AMSoil

Radiochemical Analyses20.0 +/- 0.451 pCi/gHASL 300 0.801 5/27/05 SD

Inorganics AnalysesASTM D2216-92 18.6 %Percent Moisture 5/26/05 5/27/05 RT

Lab ID:Client ID:Date Sampled::Matrix:

Th-232

Percent Moisture

20050396-07KC-681S/25105 11:04:00 AMSoil

Radiochemical AnalysesHASL 300 21.3 +1- 0.469 pCi/g

Inorganics AnalysesASTM D2216-92 16.6 %

0.524 5/27/05 SD

5/26/05 5/27/05 RT


Th-232

2D0050396-08K.-6825J25/05 11:13:00 AMSoil


Inorganics AnalysesASTMD2216-92 18.1 %Percent Moisture 5/26/05 5/27/05 RT

BDL= Below Deiection Limit

RI,,UY



200503966/7/05

5/26/053 of9

Outreadi-Waboratoly.1 North Aspent4Lo 'oken Arrow, OK 74012

(918) 251-2515FAX (918) 25 1-0008




20050396-09K-6835/25/05 11:21:00AM

SoilRadiochemical Analyses

18.6 +/- 0.434 pCi/gTh-232 HASL 300 0.567Inorganics Analyses

ASTM D2216-92 14.6 %

5/27/05 SD

5126105 5/27/05 RTPercent Moisture

Lab ID:Client ID:Date Sampleil:Matrix:

Th-232

20050396-10K-6845/25105 11:31:00 AMSoil

Radiochemical Analyses20.2 +/- 0.431 pCilgHASL 300 0.528 5/27/05 SD



Th-232

20050396-111Z-6855/25/05 11:39:00 AMSoil


Inorganics Analyses9.7 %Percent Moisture ASTM D2216-92 5/26/05 5/27/05 RT


Th-232

20050396-12K}-6865/25/05 11:50:00 AMSPoil



BDL = Below Dcection Limit



200503966/7/05

5/26/054of9

Outreadclaboratoly

vI,, J I W orth Aspeni) 3roken Afrow. OK 74012

(918) 251-2515FAX (918) 251-0008




20050396-13K-6875/25/05 11:56:00 AMSoil

Radiochemical AnalysesHASL 300 22.0 +/- 0.501 pCi/g

Inorganics Analyses* ASTM D2216-92 17.1 %

Th-232

Percent Moistire

0.677 5/27/05 SD

5/26/05 5/27/05 RT


20050396-14K-6885/25/05 12:04:00 PMSoil


18.8+/-0.404 pCi/gInorganics Analyses

92 18.4 %.

0.504 5/27/05 SD

Percent Moisture ASTM D2216-! 5/26/05 5/27/05 RT


Th-232

Percent Moisture

2;0050396-15K-689'125/05 12:11:00 PMSoil



0.878 5/27/05 SD

5/26/05 5/27/05 RT


Th-232

Percent Moistwe

20050396-16K-6905/25/05 12:18:00 PMSoil

Radlochemical AnalysesHASL 300 24.2 +/- 0.618 pCVg


0.757 5/27/05 SD

5126/05 5/27/05 RT

BDL = Below De tctiort LimityIU~y



200503966/7/05

5/26/055of9

Outreadikaboratomy

i I I NorthAspenK B *roken Arrow, OK 74012(918) 251-2515FAX (918) 251 -0008


DateAnalysisDate

Analyst

Lab ID:

Client ID:

Date Sampled:

Matrix:

20050396-17

K-6915/25/05 12:26:00 PMSoil



Th-232

Percent Moisture

0.842 5/27/05 SD

5126105 5/27/05 RT

Lab ID:

Client ID:Date Sampled:

Matrix:

Th-232

Percent Moisture

20050396-18K-692

5/25105 12:35:00 PM


HASL 300 19.2 +/-.0.414 pCi/g


0.566 5/27/05 SD

5/26/05 5/27105 RT

Lab ID:


Matrix:

Th-232

Percent Moisture

20050396-19

K-693

5/25/05 12:42:00 PMSoil



0.852 5/27/05 SD

5/26/05 5/27/05 RT

Lab ID:


Matrix:

Th-232

Percent Moisture

2,0050396-20

IC-694

5/25/05 12:48:00 PM

SoilRadiocheinical Analyses

27.5 +/- 0.679 pCi/gHASL 300

ASTM D2216-!

0.766 5/27/05 SD


15.1 % 5/26/05 5/27/05 RT

BDL= Below Detection Limit



200503966/7/05

5n26/056 of 9

Outreadl- Laboratory

,.I North Aspen4i) .roken Arrow. OK 74012

(918) 251-2515FAX (918) 2510OOE



Lab ID:Client ID:Date Sample,:Matrix:

20050396-21K-6955125/05 12:50:00 PMSoil


16.9 +/- 0.432 mg/lInorganics Analyses

92 14.5 %

0.672 5/27/05 RT

Percent Moisture ASTM D2216-5 5126/05 5127/05 RT


Th-232

Percent Moisture

20050396-22K-6965/25/05 3:00:00 PMSoil

Radiochemical AnalysesHASL 300 25.0 +1- 0.536 mg/I


0.557 5127/05 RT

5/26/05 5/27/05 RT


20050396-231<-6975/25/05 3:16:00 PM

Soil


23.3 +/- 0.620 mg/iInorganics Analyses

92 14.3 %

1.04 5/27/05 RT

Percent Moisture ASTM D2216-5 5/26/05 5/27/05 RT


Th-232

Percent Moistu e

20050396-24K-6985/25/05 3:23:00 PMSoil

Radiochemical AnalysesHASL 300 26.3 +/- 0.578 mg/i


0.665 5/27/05 RT

5/26/05 5/27/05 RT

BDL= Below Dthction Limit



20050396617/05

51261057of9

OutreadcW aboratomy

It ,,,d I North Aspen" droken Arrow, OK 74012

(918) 251-2515FAX (918) 2510008


DateAnalysisDate

Analyst


20050396-25K-6995125/05 3:30:00 PMSoil



Th-232

Percent Moisture

0.572 S/27/05 RT

5/26/05 527/05 RT

Lab ID:Client ID:Date Samplek:Matrix:

Th-232

Percent Moisture

20050396-26K-7005125105 3:32:00 PMSoil



0.458 5/27/05 RT

5/26/05 5/27/05 RT

* Lab ID:Client ID:Date Sampled:Matrix:

:20050396-27K-7015/25/05 3:46:00 PM

Soil


18.3 +/- 0.514 mg/iInorganics Analyses

92 15.0 %

1.20 s527/os RT

Percent Moisture ASTM D2216-4 5126/05 5/27/05 RT


20050396-28IC-7025125/05 3:54:00 PMSoil


24.4 +1- 0.566 mg/lInorganics Analyses

92 15.1 %

0.844 5/27/05 RT


BDL= Below Dfectiori Limit

Client:.Client Project:Lab Number:Date Reported:Date Received:Page Number:


- 20050396

6/7/055/26/05

8of9

Outreacd! 'aboratory

(WW .1 North Aspendroken Arrow, OK 741012(918) 251-2515FAX (918) 25 1.0008



Lab ID:Client ID:Date Samplec:Matrix:

Th-232

Percent Moisture

20050396-29K-7035125105 4:02:00 PMSoil

Radlochemical Analyses23.9 +1- 0.499 mg/lHASL 300

ASTM D2216-5

0.575 5/27/05 RT


12.5 % 5/26/05 5/27105 RT


Th-232

Percent Moisture

20050396-301K-7045n5/os 4:10:00 PM

Soil.R

HASL 300

ASTM D2216-92

adiochemical Analyses21.8 +/- 0.505 mg/i

Inorganics Analyses13.6 %

0.739 527105 RT

5/26/05 5/27/05 RT


2;0050396-31IC-7055/25/05 4:28:00 PM^Soil

Radlochemical Analyses24.2 +/- 0.551 mg/l 0.538 5/27/05 RTTh-232 HASL 300

Inorganics AnalysesASTM D2216-92 . 16.5 %Percent Moisture 5/26/05 S/27105 RT


Thb-232

Percent Moisture

20050396-32f-7065/25/05 4:32:00 PMSoil

Radiochemical AnalysesHASL 300 21.9 +/- 0.468 mg/i


0.526 t527/05 RT

5/26/05 5/27/05 RT

BDL5 Below DWtection Limit

OUTREACHLABORATORY

311 North AspenDmf-S A------ ^/ SA^4 f

I«WrN:;zs Ir% % VX \" I %j

Phone: (918) 251-2515Fax: (918) 251-0008

CHAIN CUSTODYResults To: Companyanyl -s Moj I dor

"r -kl . Name 1* NN (S. N,6fb^L_

I

Bill To:

Companym &%2r')Mi.f P.ftf n-

9 %' IA Address~gl\\E.I 6-G . .I_I - --- City "' -State- D Zip MYltr

7 % <~ta: Phonesj*:8K4 -Z.Z-- Fax# -4 I'sNr" 4 Z1:i

Namn _A I lA A'IA

AddresT4hl -Z -,-%41-1 u _

PO#

PROJECT #

PROJECT NAME

-hAb - _ 47if>AS, 40\a1. __ 4,7'

R STED TURNAROUND TIME S k tv(DITI 1AL CHAR ES MAYAPPLY)f

S Y I _ I

C0NTAI

ERS

CONTAINERSIZE

PLASTICOR

GLASS

A Xt.qt

PRESERVATIVEI

1. HNO3 pH42. lee 4-C3. Hat pHd24. H2SO4 pHdS. N*OH pH>11

-4.-

-~ M.~trS,,0S

4_,

-.J- 4

(I.E. FIllREMARKS

ITERED, UNTIflTERED,AS, COMPOSITE)

lv.-CUVAUEPL' ' \

ID\DAIX

SAMPLED SAMPL 1 MARl) /, GR

C__ - -- -- 4-* ti- . AD.\ . _ _ _lKzW.I '

o - .__ . / 7 1 H I

csi 6 6q, _ =_ _ _ _=_________=__-

Wmi=io°* V 7 -2 4tAl- 16 . . __ S __t _ __ _ __l

-: DAE- _ O

I DA 626~IME&,Z;..RECEIVED B D-._; ~ aA

A *.R4 MMRU

RELINQUISHED B ME -RECEIVED BY: DATE TIME__My signature on this chain of cust dicates that I am authorized by the above company to release samples for analys. The company agrees to pay the entire balance upon receIpt | [K%"; "'; t'ofsamplaelaarlItIsunderstood and agreed that any balance caried over thirty (30) dy k subject to a t piSePr month (18% per annun) fate charge. In t evnt of defaut the companybecomes legally liable for any reasonable atomey andlor conectlon fes and an related coadt nscessary to remIt the entire balance to Outreach Tchnologe Inc. (Outreach Ldboratory).

SAMPLE RETURWDISPOSALAO nornhazardous sampies shabedisposed o M otdaysafterIsUeoffinaltOolAftnottieruwfi be r tumedet cgents exspenseC. -Y * ' - r. 9 i

OUTREACHLABORATORY

CHAIN.Z" CUSTODY

311 North AspenBroken Arrow, OK 740i2Phone: (918) 251-2515Fax: (918) 251-0008

-

Results To:

Fs , t - _cm -e0 6 A

I t

REMARKSt.E. FILTERED, UNFITERED,

GRAB, COMPOSITE)

RELINQUISHED BY: 2 DATE TIME RECEIVED BY: DATE TlMiMy signature on this chain o1 custody form cates that I em authorized by the above company to reiease samples for analysis. The company agrees to pay th entire balance upon receiptot sample data and It Is understood and agreed that any balance carried over thirty (30) days Is sutbec to a 1.6% per month (13% per annum) late charge. In the ewnt oi default, the Companybecomes legally lPable for any reasonable attorney and/or collection fees and all related cost necessary to remit te entire balance to Outreach Technologies, Inc. (Outreach Labotoy).

SAMPLE RETiURN/DISPOSAL' Al non-hazardous samples shall be disposed of 30 days after sue Of ginal report. Al othere wil be returned at clents epense.

SAMPLE Lo IN

.Ce-t

Date Received: 5/25/05 12:47:17

Sample ClientNumber Sample lD

Lab Number: 20050396

Date Container ContainerMatrix Sampled Type Size

Due: 612/05

Custody SealSeal IntactPreservation

20050396-01 A K-675Percent M mista SLpec

Tb-232 by Gammna Spec

Soil

20050396-02 A K-676Percent Moisture (LOD)

Th-232 by Gamma Spec

Soil

05125/05 Plastic

05/25105 Plastic

05/25/05 Plastic

16oz

160z

16oz

None

None

None

No No

No No

No No20050396-03 A K-677Percent Moisture (LOD)Th-232 by Gamma Spec

Soil



Soil 05/25/05 Plastic 16oz None No No


Th-232 by Gamma Spec .

Soil 05/25/05 Plastic

05125105 Plastic

16 oz

16oz

None

None

No No

No No20050396-06 A K-680Percent Moisture (LOD)


Soil

20050396-07 A K-681 SoilPercent Moisture (LOD)


05/25/05 Plastic 16oz None No No


I Th-232 by Gamma Spec

Soil

20050396-09 A K-683Percent Moisture (LOD)Th-232 by Gamma Spec

Soil

05/25/05 Plastic

05/25/05 Plastic

05/25105 Plastic

16 oz

16 oz

None

None

None

No No

No No

No No20050396-10 A K-684 Soil 16 ozDParp I

Percent :ire (LOD)

Th-232 b, ,mma Spect-1


Soil '05/25/05 Plastic

05/25/05 Plastic

16oz

* 16oz

None

None

No No

No No20050396-12 A K-686Percent Moisture (LOD)Th-232 by Gamma Spec

Soil


Soil 05/25/05 Plastic 16oz * None No No


Soil 05/25105 Plastic 16oz None No No



20050396-16 A K-690Percent Moisture (LOD)Thn-232 by Gamma Spec

Soil

Soil

05/25/05 Plastic

05/25/05 Plastic

16 oz

60oz

None

None

No No

No No


Soil 05/25/05 Plastic 16oz None No No



Soil

Soil

Soil

05/25/05 Plastic

05/25105 Plastic

05/25/05 Plastic

16oz

16oz

16oz

None

None

None

No No

No No

No No. 20050396-20 A K-694Percent Moisture (LOD)


_ ,

Perce .sture (LOD)

Th-232 uy Gamma Spec

20050396-22 A K-696Percent Moisture (LOD)TIh-232 by Gamma Spec

Soil

Soil

Soil

05125105 a_ Plastic.7

05/25/05 Plastic

05/25105 Plastic

05/25/05 Plastic

16oz

16oz

16oz

16oz

None

None

None

None

No _J

No No

No No

No No




Soil .




Soil

Soil

05/25/05 Plastic 16oz

16oz

None No No

No05/25105 Plastic None -No



20050396-29 A K-703Percent Moisture (LOD)Th-232 by Gamma Sped

Soil

Soil

Soil

05/25/05 Plastic

05/25/05 Plastic

05/25/05 Plastic

16oz

16 oz

16oz

None

None

None

No No

No No

No No


Soil

Soil

05/25/05 Plastic

05/25/05 Plastic

16 oz

60oz

None No No

No20050396-31 A K-705 None No

ge 3

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SUB-REPORT

SURVEY UNIT KAISER-FSSB-005

TABLE OF CONTENTS

Pau

1.0 BACKGROUND

2.0 SUJRVEY ACTIVITIES AND RESULTS

2 1 Gross Gamma Scan2.2 Systematic Soil Core Sampling2.3 Wilcoxon Rank Sum (WRS) Testing

3.0 SUMMARY OF FINDINGS

I

2

237

9

ATTACHMENTS

ATTACHMENT A:

ATFACHMENT B:

ATTACHMENT C:

Figure A-I Gross Gamma Background and Scanning Survey Results - Lift 1Figure A-2 Gross Gamma Background and Scanning Survey Results - Lift 2Figure A-3 Gross Gamma Background and Scanning Survey Results - Lift 3Figure A-4 Gross Gamma Background and Scanning Survey Results - Lift 4Figure A-5 Gross Gamma Background and Scanning Survey Results - Lift 5Figure A-6 Gross Gamma Background and Scanning Survey Results - Lift 6Figure A-7 Gross Gamma Background and Scanning Survey Results - Lift 7Figure A-8 Systematic Soil Core Sampling Locations

Soil Survey Unit Worksheet No. 1Soil Survey Unit Worksheet No. 2

Laboratory Analytical Results

Q:\P4000\PA4072\FSS Reports\Volume llP\Survey Unit FSSB 005\FSSB 005 TOC.doc

Final Status Survey ReportVolume III - Pond Parcel Excavation Backfill Units

Sub-Report No. BCM-005Survey Unit Kaiser-FSSB-005Thorium Remediation Project


March 22, 2006

1.0 BACKGROUND

This sub-report documents the results of pond parcel excavation backfill unit final status surveyactivities completed as part of the Thorium Remediation Project at the Tulsa, Oklahoma facility(Figure 1). Specifically, this technical report addresses the final status survey of Survey UnitKaiser-FSSB-005, which consists of a unit of Below Criteria Material or BCM (less than 31.1net pCi/g Th-232 material) placed in an excavation resulting from the removal of radiologically-affected soil from the Retention Pond area. Survey Unit Kaiser-FSSB-005 is considered a Class1 survey unit with an approximate base surface area of 1,716 m2. It is located on the east side ofthe pond parcel within the excavation bottom associated with Survey Unit Kaiser-FSS-016(Figure 3). The survey unit is bordered by excavation backfill Survey Unit Kaiser-FSSB-006 tothe north, a wall of non-impacted soil (clean import borrow material) to the south and east(partially - along the Specific Systems Property), excavation backfill Survey Unit Kaiser-FSSB-003 to the east (partially), and excavation backfill Survey Units Kaiser-FSSB-007 and Kaiser-FSS]B-008 to the west.

A total of seven 2-foot layers (lifts) of BCM was placed in Survey Unit Kaiser-FSSB-005.

Sepaxate distinct final status surveys were completed for the pond parcel excavation bottomsurvey units prior to backfilling with BCM. The final status survey of the pond parcelexcavation bottom survey units is documented in Volume I of the Final Status Survey Report.

Q7v4OOQN'A4O12\FIZ Rcpors\VoIumc U !W iythnSt 0Iss 'Jn5 teddx 1 Revision 03/22/06

2.0 SURVEY ACTIVITIES AND RESULTS

This section of the sub-report presents the final status survey data for the BCM placed withinSurvey Unit Kaiser-FSSB-005. The final status survey consisted of a gross gamma scan of eachplaced 2-foot lift of BCM and systematic soil core sampling upon completion of the BCM unit.

2.1 Gross Gamma Scan

Each 2-foot lift of BCM was surveyed through a 100 percent coverage gamma scan to confirmaccej)table radiological conditions and identify any elevated areas. During the scanning of eachlift, the detector was held close to the BCM surface (1 to 2 inches) and moved in a serpentinepattern. Approximate equal-distant background measurements were also obtained at 1-meterabove the ground surface for each lift of BCM placed. A statistical summary of the backgroundsurvey and 100 percent coverage gamma scan of each BCM lift placed in the survey unit isprovided below in Table 1.

Table I - Gross Gamma Scan Results SummaryLift No. of Scan Std.

Area 2-sec. Rate Ave. Dev. Min. Max. MedianName Date (ne) Scans (m/s) (cpm) (cpm) (cpm) (cpm) (cpm)

I i~ftScan 7/01/05 1,716 1,526 0.56 91,233 11,998 39,753 106,458 94,597Ist liftCu7/01/05 1,716 21 N/A 80,088 8,014 65,526 91,038 80,661

Scan 7/09/05 1,544 1,450 0.53 102,301 7,386 64,782 134,420 102,335-2"llifB gr 7/09/05 1,544 12 N/A 94,972 3,606 86,871 99,895 95,9863rdli:ftScan 7/12/05 1,390 1,131 0.61 104,526 8,693 79,530 145,432 104,283

Bkgrd. 7/12/05 1,390 12 N/A 95,770 4,986 85,910 102,891 96,229

Scan 7/14/05 1,000 1,010 0.50 86,638 8,286 53,714 119,869 84,745

Bkgid. 7/14/05 1,000 10 N/A 79,323 4,846 73,619 91,581 78,261

Scan 7/19/05 590 507 0.58 87,034 14,695 64,268 146,998 81,526uiq -ft

____ 7/19/05 590 6 N/A 77,325 9,838 66,097 91,702 74,3256hliftScan. 7/21/05 560 583 0.48 78,401 2,149 72,442 86,572 78,407-eift

d 7/21/05 560 6 N/A 71,439 1,745 69,200 72,991 72,2787/h liftScarL___ 7/22/05 430 493 0.44 77,493 2,512 70,136 84,653 77,510

Bkg____ 7/22/05 430 8 N/A 70,203 2,164 68,619 75,075 6,5

Q W40OCxA40f7lMS Repa%\Vol-e I1BS-y Unit FSSB 005\SSB 005 teadoc 2 Revision 03/22/06

Contour maps of the gross gamma background and final (as-left condition) scanning surveyresults are presented by BCM lift on Figures A-1 through A-7 contained in Attachment A.The 100 percent coverage gross gamma scan of the 2-foot lifts did not indicate the presence ofsmall areas (1 m2) of elevated activity (above the DCCL for the site).

2.2 Systematic Soil Core Sampling

The final status survey also consisted of systematic soil core sampling based on a random startpoint and an equal-distant triangular grid. The Minimum Number of Core Samples (core holes)Required (N) based on the scan MDC was determined to be 9, as documented on Soil SurveyUnit Worksheet No. 1 (Attachment B). Once N was determined, the Survey Unit Area (A) of1,716 M2 along with the N of 9 were used to calculate the Triangular Grid Node Length (L) of14.8 meters and the Height of the Equilateral Triangle h of 12.9 meters. A random start pointwas generated using the random number feature of Excel and documented on Soil Survey UnitWorksheet No. 2 (Attachment B).

A layout of the soil sampling locations is provided on Figure A-8 contained in Attachment A.The soil core sample locations were demarcated in the field using a GPS unit. A total of 9 coreholes (sample locations) were installed on the grid prescribed over the survey unit (Core Nos.through 9). Core Segments of BCM (typically 3 feet in length) were scanned in the field in 1-foot increments. The 1-foot increments were also characterized by a 1 minute static count ofgross, gamma activity. The results are presented below in Table 2.

Table 2 - Soil Core Segment Gross Gamma Survey ResultsSegment Core Depth Gross Scan Gross Static Net Static

Core Core Length Below Surface Rate Count CountNumber Segment (inches) (ft) (kcpm) (cpm) (cpm)

1 A 36 1 29 30,867 5,2471 A 2 29 31,517 5,8971 A 3 29 30,280 4,6601 B 36 4 29 28,854 3,2341 B 5 29 32,054 6,4341 B 6 29 32,723 7,1031 C 36 7 32 34,312 8,692_ C 8 33 35,878 10,258

1 C 9 32 31,892 6,2721 D 36 10 32 33,172 7,5521 D 11 _ 33 34,377 8,7571 D 12 32 31,691 6,0711 E 36 13 31 33,622 8,0021 E 14 31 32,526 6,9061 E 15 32 33,758 8,1381 F 36 16 32 33,371 7,7511 F 17 32 32,493 6,873_ F 18 33 32,524 6,9042 A 36 1 26 29,984 4,3642 A 2 27 29,222 3,6022 A 3 27 31,317 5,697

Q:7P40MIAf4072l. S ReportsVol.mc IWSam~y Unit FSSB 005VSSB 005 rcdoc 3 Revision 03/22/06

Segment Core Depth Gross Scan Gross Static Net StaticCore Core Length Below Surface Rate Count Count

Number Segment (inches) (ft) (kcpm) (cpm) (cpm)2 B 36 4 28 31,590 5,9702 B 5 29 32,345 6,7252 B 6 29 34,472 8,8522 C 36 7 28 33,768 8,1482 C 8 29 32,377 6,7572 C 9 30 33,937 8,3172 D 36 10 32 34,822 9,2022 D 11 34 34,776 9,1562 D 12 38 37,625 12,0052 E 36 13 29 31,656 6,0362 E 14 30 32,002 6,3822 E 15 30 31,025 5,4053 A 36 1 31 32,237 6,6173 A 2 30 32,559 6,9393 A 3 31 31,777 6,1573 B 36 4 32 33,900 8,2803 B 5 33 36,423 10,8033 B 6 38 37,442 11,8223 C 36 7 33 33,461 7,8413 C 8 36 34,423 8,8033 C 9 33 35,170 9,5503 D 36 10 34 32,635 7,0153 D 11 34 31,929 6,3093 D 12 35 35,551 9,9313 E 36 13 30 32,503 6,8833 E 14 31 33,164 7,5443 E 15 32 34,411 8,7913 F 36 16 30 31,862 6,2423 F 17 31 31,521 5,9013 F 18 30 31,041 5,4214 A 36 1 28 28,652 3,0324 A 2 30 33,221 7,6014 A 3 31 31,817 6,1974 B 36 4 28 29,831 4,2114 B 5 29 32,385 6,7654 B 6 30 31,789 6,1694 C 36 7 31 32,657 7,0374 C 8 33 34,739 9,1194 C 9 32 31,098 5,4784 D 36 10 31 31,416 5,7964 D _11 32 30,286 4,6664 D 12 31 29,677 4,0574 E 36 13 33 34,676 9,0564 E 14 36 36,445 10,8254 E 15 34 30,416 4,7964 F 48 16 30 30,750 5,130

tyeWIrA4onFSs tPOdiPOIC [sU wi FSSB OOMSES QOS c Ldw 4 Revision 03/22/06


Number Segment (inches) (ft) (kcpm) (cpm) (cpm)4 F 17 31 33,853 8,2334 F 18 31 33,466 7,8464 F 19 32 31,314 5,6945 A 36 1 30 31,367 5,7475 A 2 30 32,234 6,6145 A 3 29 31,550 5,9305 B 36 4 32 31,559 5,9395 B 5 30 30,375 4,7555 B 6 31 32,265 6,6455 C 36 7 30 31,498 5,8785 C 8 30 32,376 6,7565 C 9 30 31,306 5,6865 D 36 10 30 32,568 6,9485 D 11 31 34,045 8,4255 D 12 32 31,688 6,0685 E 36 13 31 32,463 6,8435 E 14 32 31,810 6,1905 E 15 31 30,997 5,3776 A 36 1 26 25,562 -586 A 2 26 25,415 -2056 A 3 26 26,755 1,1357 A 36 1 32 33,045 7,4257 A . 2 33 33,030 7,4107 A 3 32 31,153 5,5337 B 36 4 27 32,572 6,9527 B 5 30 31,664' 6,0447 B 6 29 25,855 2357 C 36 7 29 31,762 6,1427 C 8 30 31,917 6,2977 C 9 29 29,785 4,1658 A 48 1 27 33,172 7,5528 A 2 28 32,940 7,3208 A 3 29 32,261 6,6418 A 4 28 26,978 1,3589 A 48 1 31 30,968 5,3489 A 2 31 32,732 7,1129 A 3 30 31,874 6,2549 A 4 30 32,031 6,411

. Count: 105 10S 105Average: 31 32,161 6,541Std. Dev.: 2.3 2,159 2,159

_ Minimum: 26 25,415 -205Maximum: 38 37,625 12,005

_ Median: 31 32,234 6,614'NtStatic Count values (cpm) are equal to the Gross Static Count minus a background value of 25,620

cpm based on the average of 5 consecutive 1-minute counts performed with the detector on top of thetable used to scan the cores, prior to scan activities.

Q'TP4000AA4072T3S Rqes\Vol-mc IIIiSa.veytWt FSSB 005PFSSB 005 k~tdoc 5 Revision 03/22/06

A composite sample representing each core segment was then prepared by combining each set ofthree 1-foot increments in a bucket and breaking up the cores. The final segment of core may beless than or greater than 3 feet depending on the point at which virgin material was encountered.A saaiple (usually between 500 and 800 grams) was taken from each composite and forwardedto Outreach for analysis of Th-232 activity concentration. Analytical results are provided belowin Table 3. Analytical data reports are contained in Attachment C.

Table 3 - ystematic Soil Core Com osite Sample ResultsSegment Core Std.

Core Core Length Composite Depth Th-232 Error MDCNuraber Segment (in.) Sample No. (ft) (pCi/g) (pCi/g) (pCilg)

I A 36 K-833 1 17.0 0.535 0.512l B 36 K-834 4 17.8 0.489 0.622I C 36 K-835 7 25.0 0.550 0.565I D 36 K-836 10 26.4 0.677 1.26I E 36 K-837 13 22.6 0.478 0.555l F 36 K-838 16 19.2 0.484 0.7932 A 36 K-828 1 17.0 0.424 0.707:2 B 36 K-829 4 15.4 0.380 0.663:2 C 36 K-830 7 14.7 0.376 0.4722 D 36 K-831 10 21.3 0.568 0.7282 E 36 K-832 13 18.2 0.382 0.5593 A 36 K-839 1 17.8 0.387 0.5293 B 36 K-840 4 20.5 0.555 0.7533 C 36 K-841 7 29.1 0.504 0.6183 D 36 K-842 10 29.7 0.680 0.9043 E 36 K-843 13 22.5 0.828 0.8013 F 36 K-844 16 21.5 0.524 0.5304 A 36 K-856 1 15.6 0.348 0.6054 B 36 K-857 4 18.4 0.738 0.9304 C 36 K-858 7 23.5 0.541 0.8714 D 36 K-859 10 17.0 0.643 0.8354 E 36 K-860 13 21.3 0.495 0.5244 F 48 K-861 16 19.4 0.746 0.8865 A 36 K-851 1 19.0 0.476 0.8905 B 36 K-852 4 21.8 0.523 0.9925 C 36 K-853 7 22.5 0.901 0.8395 D 36 K-854 10 27.1 0.577 0.5655 E 36 K-855 13 19.6 0.774 0.8926 A 36 K-845 1 2.23 0.131 0.3937 A 36 K-848 1 25.5 1.11 1.317 B 36 K-849 4 21.0 0.908 0.8357 C 36 K-850 7 20.8 0.785 0.8368 A 48 K-847 1 12.9 0.279 0.4639 A 48 K-846 1 24.1 0.907 0.847= Count: 34_ ._ Average 20.2_ . . Sid. Dev.: 5.11-

Minimum: 2.23Maximum: 29.7

_ Median: 20.7 1

Q.?4O009A4072ZFSS RqprWts\Vole Hl~vyU.it FM 005'iSSBn 00 .da 6 Revision 03/22/06

The gross and net Th-232 activity concentrations for all 34 systematic composite samples werebelow the BCM surrogate value of 31.1 pCi/g net Th-232 activity concentration (DCCL). Themaximum gross Th-232 activity concentration was 29.7 pCi/g. The average gross Th-232activity concentration was 20.2 pCi/g. The standard deviation of the 34 composite samples was5.11, which fell above the estimated standard deviation of 4.4 used to calculate the minimumnumber of samples required in the decommissioning plan.

Since the estimated variance (standard deviation) is greater than the variance used to calculatethe minimum number of samples required (N), N was recalculated using the measured varianceof 5.11 to ensure enough samples were taken, as follows:

Paramount to determining the minimum number of samples is the determination of the relativeshift, delta over sigma (A./a). Delta is equal to the DCGL minus the lower-bound gray region(LBGR) value. The LBGR value is arbitrarily set at one-half the DCGL value to start thedetermination. Sigma is an estimate of the variability in a set of sample analysis results from asurvey unit. In the DP, the estimate of sigma used was based on the standard deviations inTh-2'32 activity measured in survey units during the FSS sampling of the adjacent landremediation final survey. The net Th-232 activity concentration of 31.1 pCi/g was used as theDCCL and A was equal to 31.1 - 15.55, or 15.55. Delta divided by the sigma of 4.4 resulted in arelative shift of 3.53 which is rounded to 3.5 for the purpose of determining the required numberof samples. The number of samples was then looked up in Table 5.3 of MARSSIM (9 forselected alpha and beta error rates of 0.05).

Using the original net DCCL value of 3 1.1 pCi/g, a recalculation of N results in a delta of (31.1 -15.55) of 15.55 and a relative shift of (15.55 / 5.11) of 3.04. The resulting N for a standard Class1 survey unit of 2,000 m2 is 9 (MARSSIM Table 5.3). Nine systematic core samples were takenresulting, in 34 1-meter composite samples.

2.3 'Wilcoxon Rank Sum (WRS) Testing

The analytical results for the systematic soil core composite samples were evaluated using theprocedure contained in Appendix C, Volume I of this Final Status Survey Report (WilcoxonRank Sum Test). The evaluation showed that the survey unit core sample results meet the DPstatistical criterion based on the first statistical test as described below.

If the difference (29.1 pCi/g) between the maximum survey unit soil sample activityconcentration (29.7 pCi/g) and the minimum reference background area soil sample activityconcentration (0.60 pCi/g) is less than DCCL (31.1 pCi/g), then the survey unit meets the releasecriterion. Table 4 presents a summary of the data used to complete the statistical evaluation ofthe survey unit.

Q.T4001A4072PSS Requ\olSme IWSuyey Uit ISSB 005\ss 00s tetoc7 Revision 03/22/06

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Table4 -Reference Group and Survey Unit Sample ResultsReference Th-232 Survey Unit Th-232

GIroup Sample ID (pCi/g) Group Sample ID (pCi/g)RI 330 1.22 S1 K-828 17.0= R2 66 0.84 S2 K-829 15.4R3 76 0.97 S3 K-830 14.7R4 160 1.20 S4 K-831 21.3= R5 356 1.45 S5 K-832 18.2R6 91 0.97 S6 K-833 17.0R7 61 0.92 S7 K-834 17.8R8 238 0.60 S8 K-835 25.0R9 252 1.63 S9 K-836 26.4

RIO 341 1.61 SIO K-837 22.6Rll 44 1.29 S11 K-838 19.2R12 365 0.74 S12 K-839 17.8R13 266 1.62 S13 K-840 20.5R14 378 0.77 S14 K-841 29.1R15 82 1.43 S15 K-842 29.7RI6 32 1.36 S16 K-843 22.5R17 22 1.07 S17 K-844 21.5R18 273 0.84 S18 K-845 2.2R19 277 1.12 S19 K-846 24.1R2() 336 1.36 S20 K-847 12.9R21 145 0.86 S21 K-848 25.5= R22 295 1.26 S22 K-849 21.0R23 104 1.45 S23 K-850 20.8R24 301 0.76 S24 K-851 19.0R25 51 1.72 S25 K-852 21.8R26 333 0.89 S26 K-853 22.5= R27 306 1.41 S27 K-854 27.1R28 69 0.82 S28 K-855 19.6_ R29 157 0.91 S29 K-856 15.6R30 92 1.37 S30 K-857 18.4R31 32 1.36 S31 K-858 23.5R32 67 1.18 S32 K-859 17.0R33 235 1.18 S33 K-860 21.3R34 255 1.42 S34 K-861 19.4

Average: 1.16 Average: 20.2Std. Dev.: 0.30 . Std. Dev.: 5.11Minimum: 0.60 _ Minimum: 2.23Maximum: 1.72 Maximum: 29.7Median: 1.19 Median: 20.7

Q:.74(O07A4072,FSS ReputVlmce Swvy Unit FSSB OM5SSB 005 tabdw 8 Revision 03/22/06


Survey Unit Kaiser-FSSB-005 which consists of a unit of BCM placed in an excavation resultingfrom. the removal of radiologically-affected soil from the Retention Pond area, is considered aClass 1 survey unit with an approximate base surface area of 1,716 in2. It is located on the eastside of the pond parcel within the excavation bottom associated with Survey Unit Kaiser-FSS-016 (Figure 3). The survey unit is bordered by excavation backfill Survey Unit Kaiser-FSSB-006 to the north, a wall of non-impacted soil (clean import borrow material) to the south and east(partially - along the Specific Systems Property) and south, excavation backfill Survey UnitKaiser-FSSB-003 to the east (partially), and excavation backfill Survey Units Kaiser-FSSB-007and Kaiser-FSSB-008 to the west.

A total of seven 2-foot layers (lifts) of BCM was placed in Survey Unit Kaiser-FSSB-005.

The acceptance criterion for BCM survey units at the Tulsa facility is the DCCL of 31.1 pCi/gnet Th-232 activity concentration. The final status survey consisted of a gross gamma scan ofeach placed 2-foot lift of BCM and systematic soil core sampling upon completion of the BCMunit. The results of the final status survey activities were as follows:

The 100 percent coverage gamma scan of each lift (final as-left condition) did notindicate the presence of small areas (1 m2) of elevated activity (greater than the DCCLfor the site).

i* All 34 systematic composite sample results (gross and net) were below the BCMsurrogate value of 31.1 pCi/g net Th-232 activity concentration (DCCL).Ts She analytical results meet the DP statistical criterion based on the first statisticalevaluation of the data (WRS Test procedure).

The results of the final status survey activities show that Survey Unit Kaiser-FSSB-005 meets theDP acceptance criteria.

QP4OC7PA4M7UFSS RkeprtVolume IlrSwwy Unit FSSB 005\MSSB 005 tcld% 9 Revision 03/22/06

I










Q:'P4000\1A4072\PSS Reports\Volure ITI\urvey Unit FSSI3 0O5\Attachmernt A\Attaehnmit A toc~doc

Attachment A, Figure A-IGross Gamma Background and Scanning Survey Results CPM Nal # 7

Survey Unit Kaiser-FSSB-005 -Lift No. 1 , 1 ,1 . c0


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Attachment A, Figure A4Gross Gamma Background and Scanning Surey Results

Survey Unit Kaiser-FSSB-005- Lift No, 4

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CPM Nal # 7Attachment A, Figure A-5Gross Gamma Background and Scanning Survey Results

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Gross Gamma Background and Scanning Survey ResultsSurvey Unit Kaiser-FSSB-005 -LiR No. 6

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1* SYSTEMATIC SOIL CORE SAMPLING LOCATION

BASED ON RANDOM START POINT ANDAN EQUAL DISTANT TRIANGULAR GRID

* RANDOM START POINT

FIGURE A-8SYSTEMATIC SOIL CORE SAMPLING LOCATIONS

SURVEY UNIT KAISER - FSSB-005FINAL STATUS SURVEY

THORIUM REMEDIATION PROJECTTULSA, OKLAHOMA FACILITY

PREPARED FOR

KAISER ALUMINUM & CHEMICAL CORPORATION_ TULSA, OKLAHOMA

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APPROVE[ { -3 ':5 -C

CHECKEdR D 3 -

DRAWN DEB 01/30/06DRAWING NUMBER

PA4072073A Penn E&R

Environmental & Remediaton zInc.

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Q: ~P400\1'A4072\FSS Reports\Volume firSurvey Unit FSSB 005\tachment D - Soil Survey Unit Workslmu\csAttachnnent B toc-doc

Soil Survey Unit Work Sheet No. 1Final Status Survey



L. Soil Survey Unit: Kaiser-FSSB-005


t. Net Th-232 Acceptance Criteria (pCi/g): 31.1

4. Dimensions (m): Approximately 21 meters x 83 meters; Area, A (m2): 1,716

'. Estimate of Gross Gamma Scan Background Readings (cpm)

Average: 80.000 Minimum: 50.000 Maximum: 100.000



cGrid Node Length) for a standard 2,000 rn2 Class I survey unit are:



7. If tie area of the Survey Unit is less than 2,000 n2 , recalculate the corresponding Triangular Grid Node

Length (LI) for the Survey Unit Area (A), using the following formula: LI = (A/(0.866 x 9))112: 14.8

8. If N is greater than 9 and the A is other than 2,000 in2, recalculate the corresponding Triangular Grid Node

Length (LI) using the following formula LI = (A/(0.866 x N))'"2: N/A

9. If A is greater than 2,000 m.2 and N is equal to 9, recalculate the minimum number of samples (NI)

corresponding to a Triangular Grid Node Length (L) of 16 m using the following formula N, = A / (0.866 x

162), N.: N/A


formula: h = ((L2 - (IJ2)2)t2: 12.9 mi.

Q.\P4000\'A4072\FSS Reports\Volume llrSurveyUnt FSSB OO5\Attacnment B- Soil Survey Unh Worksheets\Soil Survey Unit Worksheet No. I.doc




SURVEY UNIT: KAISER-FSSB-005

RANDOM START POINTxaxs( Meters) y axis (Meters)


0

(0, 0)North

x axis

QAP4000\PA40T2fSS Reports\olurne fI\ISurvey Unit FSSB OO5Attachmnent B - Soil Survey Unit Worksheets\Soil Survey Unit Worksheet No. 2

ATTACIMENT C


Outreach.Laborator(

North Aspen,ken Anovw. OK 74)12

j918) 251-2515FAX (918) 251-0008

August 22, 2005

David WeyantKaiser Aluminum & Chemical7311 E.41st StreetTulsa, OK 74145

Project: Kaiser Thorium Remediation PA40004072OUTREACH LAB ID: 20050586

Dear Mr. Weyant:

Please find enclosed a revised page 7 of your report 20050586. In the original report,the sample ID was inadvertently omitted from sample #28. Since we have onlycorrected one ID and no results have changed, we have provided only that page to insertin your report.

We apologize for the inconvenience.

Thank you for choosing Outreach Laboratory and if you have any questions, please callus at 918-251-2515.

Laboratory tor

ODEQ ID #9517DEQ LIC. #27522-01

CERT. ID #OK001

1( L

alient:Client Project:Lab Number:Date Reported:Date Received:Page Number:


200505868/2/05

7/271057 of 10

Outreachllaboratory

d . North Aspen(1 _ A3ken Arrow. OK 70 I1Z

9)18) z51-2515FAX (918) 251-0008 Analytical Report

Result UnitsMethod DL PrepDate

Analysis AnalystDate .

Lab ID:Client ID:

* Date Sampled:Matrix:

20050586-25K-8527/26105 2:40:00 PMSoil


21.8 +/- 0.523 pCi/gInorganics Analyses

92 11.3 %

0.992 7/29/05 RT

Percent Moisture ASTM D2216- 7/28/05 7/29/05 RT


Tb-232

20050586-26K-8537/26/05 2:45:00 PMSoil

Radiochemical Analyses22.5 +/- 0.901 pCi/gHASL 300 0.839 7/29105 RT



Th-232

Percent Moisture

20050586-27]K-8547/26/05 2:50:00 PMSoil

Radiochemical AnalysesHASL 300 27.1 +/-0.577 pCig


0.565 8/1(05 RT

7/28/05 7/29/05 RT


Th-232

Percent Moisture

20050586-28IC-8557/26/05 2:55:00 PMSoil

Radiochernical AnalysesHASL 300 19.6 +/- 0.774 pCVg


0.892 8/1/05 RT

7/28/05 7/29/05 RT

BDL = Below D tection Limit

K).

q

OutreadiLaboratory

I North Aspen_ ' oken Arrow, OK 74012

i918) 251-2515FAX (918) 251-0008

-P�-August 2, 2005

David WeyantKaiser Aluminum & Chemical7311 E.41st StreetTulsa, OK 74145

~;4; ~I-l

Project: Kaiser Thorium Remediation PA-4000-4072OUTREACH LAB ID: 20050586

Dear Mr. Weyant:

Please find enclosed the analytical report for your samples received in our laboratory onJuly 27, 2005. Thirty-four soil samples were received in good condition and analyzedfor Thorium-232 by Gamma Spectroscopy without drying. and grinding and PercentMoisture with an expedited 5 work-day turn. Results were faxed early on 8/2/05.




ODEQ ID #9517I)EQ LIC. #127522-01

CERT. ID #OK001


OutreadcLaboratory

ki I North Aspen4g1' token Arrow. OK 70102

(918) 251-2515FAX (918) 251-0008


200505868/2/05

7/27/05I of 10

Analysis AnalystDate


Date


Th-232

Percent Moisture-

20050586-01K-8287/26/05 9:51:00 AMSoil*



0.707 7/28/05 SD

7/28/05 7/29/05 RT


Th-232

Percent Moisture

20050586-02K-8297/26/05 10:02:00 AMSoil



0.663 7/28/05 SD

7/29/05 RT7/28/05

Lab ID:Client ID:Date.Sampled:

Matrix:

Th-232

Percent Moisture

20050586-03K-8307/26/05 10:13:00 AMSoil



0.472 7/28/05 SD

7/28/05 7/29/05 RT


20050586-04K-831'7126/05 10:27:00 AM'Soil


Inorganles AnalysesASTM D2216-92 17.8 %

Th-232

Percent Moisture

0.728 7/28/05 SD

7/28/05 7/29/05 RT

BDL = Below D:tection Limit



200505868/2/05

7/27/053 of 10

OutreadiI I kaboratotyL I North Aspens roken Arrow. OK 7401Z(918) 251-2515FAX (918) 2551-0008 Analytical Report




20050586-09K-8367/26/05 11:28:00 AMSoil

Radiochemical AnalysesHASL 300 26.4 +/- 0.677 pCVg


Th-232

Percent Moisture

1.26 7/28/05 SD

7/28/05 7/29/05 RT


Th-232

Percent Moisture

20050586-10K-8377126105 11:28:00 AMSoil



0.555 7/28/05 SD

7/28105 7/29/05 RT


Th-232

Percent Moisture

20050586-11K-8387/26/05 11:32:00 AMSoil

Radiochiernical AnalysesHASL 300 19.2 /- 0.484 pCi/g

Inorganics AnalysesASTM D2216-92 .. 17.4 %

0.793 7/28/05 SD

7/28/05 7/29105 RT


Th-232

Percent Moisture

20050586-12K-8397/26/05 11:41:00 AMSoil

Radiocheuiical AnalysesHASL 300 17.8 +/- 0.3 87 pCi/g

Inorganics AnalysesASTM D2216-92 ' 15.2 %

0.529 7/28/05 SD

7/28/05 7/29/05 RT

%.4J BDL= Below D:tection Limit



20050586812/05

7/27/054 of 10

Outreadi- Laboratoiy

i i I North Aspen\jdj, .oken Arrow. OK 74012

1918) 251-2515FAX (918) 251-0008




20050586-13K-8407126/05 11:52:00 AMSoil

Radiochemical Analyses20.5 +1- 0.555 pCi/gTh-232 HASL 300 0.753


7/28105 SD

7/29/05 RT7/28/05Percent Moisture


Th-232

Percent Moisture

20050586-14K-8417/26/05 12:00:00 PMSoil

Radiochemical AnalysesHASL 300 29.1 +!- 0.504 pCi/g


0.618 7/28/05 SD

7/28/05 7/29/05 RT

* Lab ID:Client ID:Date Sampled:

* Matrix:

Th-232

Percent Moisture

20050586-15K-8427/26/05 12:20:00 PMSoil

Radiochemical Analyses29.7 +/- 0.680 pCi/gHASL 300

ASTM D2216-!

0.904 7/28/05 SD


12.9 % 7/28/05 7/29/05 RT


Th-232

Percent Moisture

20050586-16}K-8437/26/05 1:40:00 PMSoil

Radiochemical AnalysesHASL 300 22.5 +/- 0.828 pci/g


0.801 7/29/05 SD

7/28/05 7/29/05 RT

JBDL = Below Detection Limit

Client:Client Project:Lab Number:Date Reported:

Date Received:Page Number:

OutreachLaboratoay

X I North Aspen~ Yoken Arrow. OKI'4012,918) 251-2515

FAX (918) 2514O00O


200505868/2/05

7/27/055 of 10



Date


Th-232

Percent Moisture

20050586-17K-8447/26/05 1:50:00 PMSoil

Radiochemical AnalysesHASL 300 21.5 +/- 0.524 pCilg


0.530 7/29/05 SD

7/28105 7/29/05 RT

* Lab ID:Client ID:Date Sample,:Matrix:

Th-232

Percent Moisture

20050586-18K-8457/26/05 1:55:00 PMSoil

HASL 300Radiochemical Analyses

2.23 +/- 0.131 pCilgInorganics Analyses

16-92 10.7 % .

0.393 7/29/05. SD

ASTM D22 7/28/05 7/29105 RT


Th-232

Percent Moisture

20050586-19K-8467/26/05 2:05:00 PMSoil



7/29/050.847 SD

7/28/05 7/29/05 RT


Th-232

Percent Moisture

20050586-201:-8477126/05 2:10:00 PMSoil

Radiochemical AnalysesHASL 300 12.9 +1- 0.279 pCVg


0.463 7/29/05 RT

7/28/05 7/29/05 RT

,,j ) BDL - Below Detection Limit

Client:Client Project:Lab Number:

I Date Reported:Date Received:Page Number:


200505868/2/05

7/27/056 of 10

OutreadcLaboratoly

L , I North Aspensoken Arrow, OK 7401ZM918) 251-25 15

FAX (918) 251-0008 Analytical ReportResult UnitsMethod DL Prep



Th-232

Percent Moisture

20050586-21K-8487/26/05 2:20:00 PM


25.5 +/- 1.11 pCi/gHASL 300

ASTM D2216-5

1.31 7/29/05 RT


14.8 % 7/28/05 7/29/05 RT

Lab ID:Client ID:Date Samplet:Matrix:

Th-232

) Percent Moistire

20050586-22K-8497/26/05 2:20:00 PM


HASL 300 21.0 +/- 0.908 pCilgInorganics Analyses

ASTM D2216-92 . 11.1 %

0.835 7/29105 RT

7/28/05 7/29/05 RT


Th-232

Percent Moisture

20050586-23K-850'7/26/05 2:35:00 PMSoil


ASTM D2216-

0.836 7/29/05 RT


1 13.8 % 7/28/05 7/29/05 RT


20050586-24}i-8517/26/05 2:35:00 PMSoil



Th-232

Percent Moisture

0.890 7/29/05 RT

7/29/05 RT7/28/05




200505868/2/05

7/27/057 of 10

Outreadclaboratoly

I North Aspen'i~4 .roken Arrow, OK 1401Z

(918) 251-2515FAX (918) 251 -OOe Analytical Report




Th-232

Percent Moisture

20050586-25K-8527/26/05 2:40:00 PMSoil


ASTM D2216-.

0.992 7/29/05 RT


11.3 % 7/28/05 7/29/05 RT

Lab 1ID:Client ID:-Date Sampled:Matrix:

Th-232

20050586-26K-8537126/05 2:45:00 PMSoil

Radiochemical Analyses22.5 +/- 0.901 pCi/gHASL 300 0.839 7/29/05 RT

Inorganics AnalysesASTM D2216-92 12.1 %Percent Moisture 7128/05 7/29/05 RT

Lab ID:Client ID:

. Date Sampled:Matrix:

20050586-27K-8547/26/05 2:50:00 PMSoil


* 27.1 +/- 0.577 pCi/gInorganics Analyses

92 . 12.3 %

0.565 8/1/05 RT

* Percent Moisture ASTM D2216-' 7/28/05 7/29/05 RT


Th-232

Percent Moisture

20050586-28

7/26/05 2:55:00 PMSpoil


Inorganics Analyses0.892 8/1/05 RT

ASTM D2216-92 8.1 % 7/28/05 7/29/05 RT

E / BDL= Below Detectioii Limit


Outreadc'Iaboratolyi X North Aspen

L1' roken Arrow. OK 74 012(918) 251-2515FAX (918) 251.0008


20050586812/05

7127/058 of 10


Analyticail Report



20050586-29K-8567/26/05 3:05:00 PM

Soil



92 10.7 %

0.605 8/1/05 RT



20050586-30K-8577126/05 3:10:00 PMSoil



92 12.6 %

0.930 811/05 RT

Percent Moisture ASTM D2216-S 7/28/05 7/29/05 RT

Liab ID:Client ID:Date Sampled:Matrix:

20050586-31K-8587/26/05 3:20:00 PMSoil

Radioclhenical AnalysesHASL 300 23.5 +/- 0.541 pCi/g

Inorganics AnalysesTh-232

Percent Moisture

0.871 8/1/05 RT

ASTM D2216-92 13.9 % 7/28/05 7/29/05 RT


20050586-32K-8597/26/05 3:25:00 PMSoil


Inorganics AnalysesASTMD2216-92 .11A %

Th-232

Percent Moisture

0.835 8/1/05

7/28/05 7/29/05

RT

RT

ij! S BDL = Below Detection Limit

Client:Client Project:.Lab Number:Date Reported:Date Received:Page Number:

OutreadiLaboratoty

I North Aspenroken Arrow, OK 7.101Z

' ,918) 251-2515FAX (918) 251.0008


200505868/2/05

7/271059 of 10


Analytical Report



Th-232

Percent Moisture

20050586-33K-8607/26/OS 3:35:00 PMSoil

Radiochemical AzialysesHASL 300 21.3 +/- 0.495 pCi/g


0.524 8/1/05 RT

7/28/05 7/29/05 RT


Th-232

ilbJ 'Percent Moisture

20050586-34K-8617/26/05 3:40:00 PMSoil

RHASL 300

ASTM D2216-92

adiochenical Analyses* 19.4 +/- 0.746 pCi/g


0.886 8/1/05 RT

7/28/05 7/29/05 RT

BDL= Below Dection Limit

Client:Client Project:Lab Number:Date Reported:

OUtreLd . Date Received:Laboratory -Page Number:

L I Nor Aspen'I .Y Jroken Aro , OK74 M1Z

(918) 251-2515FAX (918) 251 -0008


20050586

8/2/057/2710510 of 10

QC Report

Parameter Blank LCS LCSD DUP MS MSD Date%REC %REC RPD RPD %REC %REC RPD

Ar 7- i t 7netoi5AcZ28

Ac228

Am-24 1

Am-241

Co-60

Co-60

Cs-137

Cs-137

Percent Moisturc

Percent Moisturc

t.3

91.0

94.0

96.0

93.0

97.0

95.0

100.0

89.0

95.0

96.0

97.0

96.0

9.5

5.5

0.6

2.9

0.0

0.7

7/29/05

7/29/05

7/28/05

7/29/05

7(28/05

7129/05

7/28/05

7/29/05

7/29/05

10.3

4.5

Lab Approval:

iv'. BDL= Below Detection Limit

4 JUTREACHLABORATORY

_E

CHAIN 6',C'USTODYResults To:

A~tBFov'K

7z. ,5ftq

Company)A. I $AName~ AGr

Addra~n "7ThI S

- (IC eI,1. 4i-t.-.

I . . %� -6-

- � IL . )L -\I-

Bill To:

Company b~t f~ri %NamAGJIU I gIRL /4p t D MAa.t-"4:7h " &I

311 North AspenBroken Arrow, OK 74012Phone: (918) 251-2515Fax: (918) 251-0008

--- - - -'11

Ph#one 4 1-71 IAddrss 7111 . \If I-!!~'~1

a 4,QA -state-cM- -ZIP,7-14.1(4r.

PO# C0'MV. VP p_±u_-PROJECT # *17- z -f~ 7tf 1 l , A - L*9. -\j - 1 It

PROJEC NAME 91 N m

RE ESTED TURNAF~Rf)&TIME P? I n1(A'DDIEONAL CHARGES MAY APPLY) T

~^A%. )& --

C0NTA

NERS

CONTAINERSIZE

PLASTICOR

GLASS

PRESERVATIVEN

1. HNO3 pH<22. e dc4'C3. MCI pHd4. H2S04 pH14S. NHON pHb11

L/.

~A, ,ri-(71

C.

_ -!q

Q3

t-icrr...0 �

0tt=P4

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12111REMARKS

(I.E FILTERED, UNFILTERED,GRAB, COMPOSITE)CtIEM SAMP - /

11DtATE

SA50D- lINtM

SAAID /tmu

%.Z I -

EL - _ _c

Ir~ -

I q..N I_ \1(LS-- I -,),I If It i.? I J[ V - t\ -- I I I -. h� I I L� I . --- - . . . - Li ". - - - - - -- - - - - -14I .1 - I I - I - - I

I

RECEIVEDRCEV / 31i"

RELINQUISHED BY: DATE TIME RECEIVED BY: DATE TIME -_'My signature on this chain of custody form IndIcates that I am authorized by the above company to release sample* for analysis. The company agrees to pay the ent balance upon receiptof sample data and it is understood and agreed that any balance carried over thirty (30) days Is subject to a 1.5% per month (18% per annum) late charge. In the event of defaulth te company

becomes legally liable for any reasonable attorney and/or collectIon fees and at related costs neessary to remIt the entire balance to Outreach Technologies, Inc. (Outreach Laboatory).

I l

TAUPIt r RETLIRNa~t)POSAL An non-hazardous samolee shall be disposed of 30 days after Issue of final report. An others will be returned at clents expense.

rC-''''_JUTREACHLABORATORY


CHAIN (h -USTODYResultsTo: Company l#(A\ \7 -A"r -i p % 1

t\I& $i_ Name ('NtN a.% _______

cs~kk Address 7'fl~ C ~A I a2 I ___

I. '-$ ~7. f " Ci tY%&A -.&State-1.Zip-...2fI ~t

,B l hn- - _ M---2Qa iN -I 4-I

Bill To:

Company A/V %IC' r' P It"0"I , - 1

Name ZAmJrA (ak 1/A -_,V~ K.I Aj

I Address nl ,N L I l I--I Ciftq .40 I .. stateflhinkzip 1 tjN

nra

P°#%\' 7n so1 gA)%sez- k - IPROJECT# LM.M '._ -_ J4e7z.PROJECTNAME4+ - 0oVb k AI(M ;JRF'QUESTED TURNAROUND TIMES !XAPtaW14(~O~TIONAL4HARGES MAY APPLY) -E ,Q , Xz..17

NC0NTA

NERS

CONTAINERSIZE

PLASTICOR

GLASS

PRESERVATIVEN

1. HNO3 pH<22. fce <4C3. HCI pHId4. H2SO4 pHc2S. NsOH pb111

-IIt '

;.�t0 60Z- �tj - e

= r,.

'_9 t- 0

.47- ... 1-1 - - - - -- -- - .. ---- - / REMARKSI.r Fi-TERED, UNFITERED,

GRAB, COMPOSITE.�---�.- - '�-*----1�--*r - - 1*-

91=ClIENT SAWL-

iDTIME

SAMPID | MAT1R"

-<' 4 - 77__'7o-,*L-

'.¶.,

1__ 1l--

-

REN EDIME i'Y BYRECEiV

RELINQUISHED BY: DATE . .1ME_ _ RECEIVED BY. DATF TIME_-

tAy signature on thliS chain of custody form IndIcates that I am authorized by the above company to release ample for ann ysb:The company agr to py th ntir bal upon reIotof sample data and it Is understood and agreed that any balance carred over thirty (30) days I stuitect to a 1.S% per month (i 8% per annum) late charge. In the event oi default, th Company

becomes legally tiable for any reasonable attorney and/or cotection fees and aS related coals necessary to remit the entire balance to Outreach Technologies. Inc. (Outreach Laboratory).

e -Alt .'- e ne [n- . An h .- 4-.. - n h.M s- Pised of 30 days after Issue of fInal report At others wilt be returned at cllenrs expense.

4#. JUTREACHLABORATORY

-3,1 1 iN - b* Aspen C'

Broken Arrow, OK 74012r hone: (918) 251-2515Fax: (918) 251-0008

H -A

CHAIN k. CUSTODYI-r

Results To:

a If %-%%

.7..- zX t 6 { 1I- -Z IM

Copn-y&W? AmJ!b X1tName ZloA~ . 1A'Af~

Ardra" n il~~ C U I ZY1 Si I.

Bill To:

Companytv w9s 1 P , S

Name 5 b ,/t2 , A )> ( D !

||Addresst3) I v I A, lI I State -t 9 '

cityA23VA= .State C& Zip. !7!1 L ~t

Plhnei - 'tIFax #1 & X27. ]

WAI A =0

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PROJECTI# CO,{ V, 7 ?-4 - M9 I \PROJECTNAME iji'-YCt? (¶Ž N

REOES D TURNAROUND TIME S 0 L(ADOOANA CHARGES MAYAPPL

SA4E 4 ,S2 ps5\oeattire X 'j v>

#C0NTA

NERS

CONTAINER PRESERVATIVESIZE I

1. HNO3 pH<22. ka c4-C

PLASTIC 3. HCI pHcdOR 4. 12041 pH>1t

GLASS 5. NsOH ptbll

'1

AFO-.o 0 l-1

,, -, - t.0r '7

REMARKS(I.E FILTERED, UIMTERED,

CUIEWTSAMPMIE - DATIE 11mI %- GRAB, COMPOSITIE)IDa SAMIMD SANIPM mAumI

- - ' LIJ

I<''I.k2.-,zi

CA Iagu

C I ..- , I. /. ~ - I - .~o

EVDA)2E F Y// RECEIVED QY: A DAM(;;M/ y -i

RELINQUISHED B Y : DATE TIME RECEIVED BY: -DATETIME

Ity Ignature on this chain of custody form Indicates that I am authorized by the above company to release Samrpl for analysis. Tho company agrea to pay the entire balance upon receipt Iof sample data and It Is understood and agreed that any balance carrled over thirty (30) days I sub ect to a 1.5% per month (18% per annum) late charge. In th ent of deft hew company

becomes legally nlable for any reasonable attorney and/or coltection fees and alt related costs necessary to remit the entire balance to Outreach Technologies, Inc. (Outreach Laboratory).

_ . . ___ ___ _ - - - .h n - .- -. - N. ~ f 1A aa aft, ian- ntf final rawrt An others vA'be returned at clienra expense.

Dae.,eie:./ 7051:4:5 a Nmbr. 0508 .7 ..Z~ -"iu~, :

.. Tt

20558-5 .14 8280505$716/0 Nasffc Lo. .Ne ~~o~ .

Sa pent. ostue C'o

)ta

,l.e

lbh6232 y Gamma Spe'C .&.~

5-5.'5...5-

255803A K-43 9 .So _07/26 -- flast c. -16 oz None , . o

20050586-02 A SO31~i 7260 ~ si' lo o N

Percent Moistre, (LOT))

TH-,232 by Gaffmra Spec'

20050586.0 A -3 .Soil .07/26/05 Patc 6ozNN

Percent Moisture (LOD))


2005'0586-04 A. K-831 .oil . ~ 07/26/05 .. matic' 16'oz. . None, No .0 No.

Percent Moisture (LOD). .. . , .....

Tlh-232 by Gamma Spec

20050586-07 A,. K-834 2 Soil' 07126/05 Plastic 16 0z None -No'. No

Percent Moisture (LOD) . . ...

..~.. "~

Th-232 byGamima Sped .

200S0586-06 A .K-833 Soil' 07/26/05 -Plastic - 16 oz None- ~ ..... .Nor., No',

~Percent Moisture (LOD))

Th-232 by Gamma Spec.

20050586-07 A K-8346 --~Soitd - 0'7/26105, elstic,. " '.16' No-,Nn N

Percent Moist re (LOD. . ..... ..

.......

.-

.T-23 b Gam ma. So..cc

.. . . .. .... . ... -.

20 58- A, K-837 00...... .. :o 07(26/05 . laic * 1oz >N nNo o

r . ... .. -

072..t, 12erf6/05'-- 'SI.None. - rN

Percent,

.-. ,.4 .-

Th;232 y,(3rrniSpec.. 4

T h 4 3 2 G am m '...n.J...r ......

peF~ent Moisture (LOt).:- .,...-,..,..

.

.W~-232 by Gamnma SPtc ..

'20 0 5 05 8 6 -2 3 ,A :K -8 5 '10N a

16 . -NI .

PercenMoSUCLD.Th-Ž32by Gamma Spec:..

20050586-24 A k-ssi . .. ~~~~~ 07/26105..Plsi16oIon . fo,.. .,.o

Percent Moisture (LOD)) -

14 . ,*.

'Fb.232 by Gammna Spec.

.K . .As

20050586--25 A (5 Noe N

i .$9i

PercenMitur (LOD)

Th.232 by Gamma Spec.

20050586-26 A K-853 Soil 07/26/05 Plastic 16 oz None No 'No

Percent Moisture (LOD)

Th.232 by Gamma Spec.

20050586-27 A K-854 Soil 07/26/05 Plastic 16 oz None No . No-

Percent Moisture (LOD)) . .... ....-

.... . - 7 i .

20050586-28 1(455 Soil07126/05J. .Plastic- io .& oe~~:o . N

Percent Moistur (LOD)I.TiIZbGamma Spec

200505862-29 A K-856- Soil 0/60 lsi 6o oe..oN

PecetMoistuire (i.OD).

.....

T-23.2 by Gairma Spe

. .16 oz-oe4 NV .NO-'

200505.86-310A K-857 .Patc '~-.X: .4.

P e rc e nt. W i d-e.-

'20050586-32 A 185 Si 07215;"7~si

6 o~nce , '~'1 ~N205563 C86,

Soil 07/26/05 lsi""~ 6b hn-. 1.Xr

*_

Percent Moistut (LO)-

Th-232 by.Gamma Spe

. -. '.J'~.

20050586-34:A- -861'.

.Sz 0/60. lsi 6ozNn c


-.2 b.'Gi

na pe

CONTAINER INSPE ION

IICoolers 4 Custody Seals.Broken yg Temperature .iie-ft Blue Ice Wet Ice'. -Radiaio'l yrmvalSAMPLE INSPECTION

..

. .. ~,.. ..CUS;edy Seals Broken - Chain of Custody Record&/N Labels in TactJ/N Radiation Survey Complete Y/N

Anomalies:

Inspected By:

DATE'.Q2121 &

QA or Designee Review:2

/O

Sample Custodian Reviw DT

Project..Note

~..t .

4

SUB-REPORT


TABLE OF CONTENTS

1.0 B ACKGROUND


2.1 Gross Gamma Scan2.2 Systematic Soil Core Sampling2.3 Wilcoxon Rank Sum (WRS) Testing


I

2

238

10

ATTACHMENTS

ATTACHMENT A:

ATTACHMENT B:

ATTIACIHIENT C:

Figure A-1 Gross Gamma Background and Scanning Survey Results - Lift 1Figure A-2 Gross Gamma Background and Scanning Survey Results - Lift 2Figure A-3 Gross Gamma Background and Scanning Survey Results - Lift 3Figure A-4 Gross Gamma Background and Scanning Survey Results - Lift 4Figure A-5 Gross Gamma Background and Scanning Survey Results - Lift 5Figure A-6 Gross Gamma Background and Scanning Survey Results - Lift 6Figure A-7 Systematic Soil Core Sampling Locations

Soil Survey Unit Worksheet No. ISoil Survey Unit Worksheet No. 2


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March 22, 2006

1.0 BACKGROUND

This sub-report documents the results of pond parcel excavation backfill unit final status surveyactivities completed as part of the Thorium Remediation Project at the Tulsa, Oklahoma facility(Figure 1). Specifically, this technical report addresses the final status survey of Survey UnitKaiser-FSSB-006, which consists of a unit of Below Criteria Material or BCM (less than 31.1net pCi/g Th-232 material) placed in an excavation resulting from the removal of radiologically-affected soil from the former Reserve Pond area. Survey Unit Kaiser-FSSB-006 is considered aClas3 1 survey unit with an approximate base surface area of 2,177 m2. It is located on the northside of the pond parcel within the excavation bottom associated with Survey Unit Kaiser-FSS-017 (Figure 3). The survey unit is bordered by a wall of non-impacted soil (clean import borrowmaterial) to the north (along Fulton Creek), excavation backfill Survey Units Kaiser-FSSB-009and Kaiser-FSSB-010 to the west, excavation backfill Survey Units Kaiser-FSSB-003 andKaiser-FSSB-004 to the east, and excavation backfill Survey Units Kaiser-FSSB-003, Kaiser-FSS]3-005, and Kaiser-FSSB-007 to the south.

A total of six 2-foot layers (lifts) of BCM was placed in Survey Unit Kaiser-FSSB-006.

Separate distinct final status surveys were completed for the pond parcel excavation bottomsurvey units prior to backfilling with BCM. The final status survey of the pond parcelexcavation bottom survey units is documented in Volume I of the Final Status Survey Report.

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Each 2-foot lift of BCM was surveyed through a 100 percent coverage gamma scan to confirmacceptable radiological conditions and identify any elevated areas. During the scanning of eachlift, the detector was held close to the BCM surface (1 to 2 inches) and moved in a serpentinepattern. Approximate equal-distant background measurements were also obtained at 1-meterabove the ground surface for each lift of BCM placed. A statistical summary of the backgroundsurvey and 100 percent coverage gamma scan of each BCM lift placed in the survey unit isprovided below in Table 1.

Table 1 - Gross Gamma Scan Results SummaryLift No. of Scan Std.

Area 2-sec. Rate Ave. Dev. Min. Max. MedianName Date (m) Scans (nis) (cpm) cpm (cpm) (cpm) (cpm)

1st liftScan 7/21/05 2,177 1,347 0.81 79,844 5,421 62,048 98,734 79,7691st liftBk _d. 7/21/05 2,177 18 N/A 76,056 4,435 69,639 85,044 75,5212 liltScan 7/26/05 2,177 1,782 0.61 75,193 7,014 61,558 98,695 74,505:ff 1i ftBkgrd. 7/26/05 2,177 18 N/A 69,785 5,215 63,123 79,554 69,0663ra liltScan 7/30/05 2,177 1,608 0.68 100,124 4,778 63,352 116,289 100,997

a lilftBkgrd. 7/28/05 2,177 13 N/A 93,711 5,975 80,839 100,933 95,112

Scan 8/02/05 2,177 1,926 0.57 106,245 8,019 92,020 144,501 104,954

Bk grd. 8/02/05 2,177 15 N/A 94,366 3,564 86,982 101,386 94,7365 liftScan 8/05/05 2,177 1,720 0.63 91,574 5,837 79,186 121,049 91,3185 l:ftBk grd. 8/05/05 2,177 15 N/A 83,612 2,080 79,168 86,294 84,1726 liftScan 8/09/05 2,177 1,501 0.73 93,097 3,285 77,864 109,502 92,8416 I¶T

_Bkgrd 8/09/05 2,177 12 N/A 85,430 1,784 81,752 87,590 86,160

Contour maps of the gross gamma background and final (as-left condition) scanning surveyresults are presented by BCM lift on Figures A-1 through A-6 contained in Attachment A.

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The 100 percent coverage gross gamma scan of the 2-foot lifts did not indicate the presence ofsmal I areas (1 m2) of elevated activity (above the DCCL for the site).


The final status survey also consisted of systematic soil core sampling based on a random startpoint and an equal-distant triangular grid. The Minimum Number of Core Samples (core holes)Required (N) based on the scan MDC was determined to be 9, as documented on Soil SurveyUnit Worksheet No. 1 (Attachment B). The default Class 1 Survey Unit Area (A) of 2,000 mIalong with the N of 9 were used to calculate the Triangular Grid Node Length (L) of 16.0 metersand the Height of the Equilateral Triangle (h) of 13.9 meters. Since A was greater than 2,000 m2 ,

the number of samples (Ni) was recalculated (10) to correspond to the L of 16.0 meters. Arandom start point was generated using the random number feature of Excel and documented onSoil Survey Unit Worksheet No. 2 (Attachment B).

A layout of the soil sampling locations is provided on Figure A-7 contained in Attachment A.The soil core sample locations were demarcated in the field using a GPS unit. A total of 12 coreholes (sample locations) were installed on the grid prescribed over the survey unit (Cores Nos. 1through 1.2). Core segments of BCM (typically 3 feet in length) were scanned in the field in 1-foot increments. The 1-foot increments were also characterized by a 1 minute static count ofgross gamma activity. The results are presented below in Table 2.

Table 2 - Soil Core Segment Gross Gamma Survey ResultsSegment Core Depth Gross Scan Gross Static Net Static

Core Core Length Below Surface Rate Count CountNumber Segment (inches) (ft) (kcpm) (cpm) O

1 A 42 1 26 26,922 4,277I A 2 27 26,206 3,5611 A 3.5 27 26,578 3,9332 A 36 1 26 29,739 7,0942 A 2 29 30,035 7,3902 A 3 29 31,481 8,8362 B 36 4 25 26,034 3,3892 B 5 26 25,968 3,3232 B 6 26 25,810 3,1653 A 36 1 29 32,855 9,5403 A 2 29 34,015 10,7003 A 3 29 32,982 9,6673 B 36 4 27 28,300 4,9853 B 5 30 32,486 9,1713 B 6 28 29,297 5,9823 C 36 7 32 33,752 10,4373 C 8 31 33,831 10,5163 C 9 32 35,732 12,4173 D 60 10 26 27,965 4,6503 D 11 26 28,693 5,3783 D 12 27 26,939 3,6243 D 13 27 25,006 1,691

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Number Segment (inches) (ft) (kcpm) (cpm) (cpm)L3 D 14 27 28,969 5,6544 A 36 1 31 35,125 11,8104 A 2 33 36,004 12,6894 A 3 32 35,458 12,1434 B 36 4 27 29,691 6,3764 B 5 27 29,495 6,1804 B 6 28 32,272 8,9574 C 36 7 32 34,522 11,2074 C 8 33 33,648 10,3334 C 9 34 38,045 14,7304 D 36 10 28 27,883 4,5684 D 11 28 28,958 5,6434 D 12 29 29,334 6,0194 E 36 13 24 25,789 2,4744 E 14 24 26,725 3,4104 E 15 24 25,274 1,9595 A 36 1 31 33,164 10,5195 A 2 33 33,505 10,8605 A 3 35 35,748 13,1035 B 36 4 27 29,037 6,3925 B 5 28 28,851 6,2065 B _ 6 29 29,815 7,1705 C 36 7 28 30,623 7,9785 C 8 28 30,088 7,4435 C 9 28 28,348 5,7035 D 48 10 29 31,774 9,1295 D 11 30 31,048 8,4035 D 12 31 31,828 9,1835 D 13 32 33,060 10,4156 A 36 1 28 31,962 8,6476 A 2 29 32,607 9,2926 A 3 32 33,142 9,8276 B 36 4 27 28,728 5,4136 B 5 28 29,728 6,4136 B 6 27 28,681 5,3666 C 36 7 29 .32,391 9,0766 C 8 29 32,398 9,0836 C 9 29 34,799 11,4846 D 36 10 27 28,724 5,4096 D 11 28 28,895 5,5806 D 12 27 27,357 4,0427 A 36 1 28 29,374 6,7297 A 2 30 31,761 9,1167 A 3 31 31,538 8,8937 B 36 4 27 28,766 6,1217 B 5 28 30,314 7,669

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Number Segment (inches) (ft) (kcpm) (cpm) (cpm)7 B _ 6 29 29,804 7,1597 C 36 7 30 30,242 7,5977 C 8 31 31,601 8,9567 C 9 31 31,597 8,9527 D 36 10 28 30,065 7,4207 D 11 28 29,526 6,8817 D 12 30 31,348 8,7038 A 36 1 30 33,700 11,0558 A 2 31 28,608 5,9638 A 3 31 33,227 10,5828 B 36 4 29 30,353 7,7088 B 5 29 30,724 8,0798 B 6 29 28,817 6,1728 C 36 7 30 31,871 9,2268 C 8 31 31,513 8,8688 C 9 30 30,410 7,7658 D 36 10 26 26,436 3,7918 D 11 27 28,646 6,0018 D 12 27 28,352 5,7079 A 36 1 28 30,800 7,4859 A 2 29 31,721 8,4069 A 3 30 31,316 8,0019 B 36 4 30 30,806 7,4919 B _ 5 29 28,948 5,6339 B 6 30 28,592 5,2779 C 36 7 29 32,705 9,3909 C 8 30 33,933 10,6189 C 9 31 32,036 8,7219 D 36 10 26 29,418 6,1039 D 11 27 27,155 3,8409 D 12 27 27,890 4,57510 A 36 1 30 32,069 9,42410 A 2 32 32,489 9,84410 A 3 34 34,378 11,73310 B 36 4 29 28,914 6,26910 B 5 29 29,756 7,11110 B 6 31 30,452 7,80710 C 36 7 29 31,641 8,99610 C 8 30 27,743 5,09810 C 9 32 32,267 9,62210 D 48 10 27 28,268 5,62310 D 11 29 29,960 7,31510 D 12 28 28,417 5,77210 D 13 28 29,404 6,75911 A 36 1 33 32,914 9,59911 A 2 32 32,639 9,324

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Number Segment (inches) (ft) (kcpm) (cPm) (cpm)11 A 3 34 35,988 12,67311 B 36 4 28 31,131 7,81611 B 5 28 31,552 8,23711 B 6 29 30,731 7,41611 C 36 7 37 35,406 12,09111 C 8 38 35,230 11,91511 C 9 37 39,204 15,88911 D 60 10 28 31,567 8,25211 D 11 30 29,034 5,71911 D 12 32 32,175 8,86011 D 13 28 30,139 6,82411 D 14 30 30,246 6,93112 A 36 1 34 34,855 12,21012 A . 2 34 34,250 11,60512 A 3 35 34,536 11,89112 B 36 4 29 30,863 8,21812 B 5 30 31,479 8,83412 B 6 31 31,048 8,40312 C 36 7 28 29,958 7,31312 C 8 32 32,382 9,73712 C 9 3 1 30,354 7,70912 D 48 10 29 31,370 8,72512 D 11 30 31,570 8,92512 D 12 31 32,110 9,46512 D 13 31 30,722 8,077

Count: 139 139 139Average: 29 30,843 7,876

. Std. Dev.: .5 2,670 2,646. . Minimum: 24 25,006 1,691

Maximum: 38 39,204 15,889. Median: 29 30,731 7,816

Net Static Count values (cpm) are equal to the Gross Static Count minus a background value of either22,645 cpm (Core Nos. 1, 2, 5, 7, 8, 10, and 11) or 23,315 cpm (Core Nos. 3, 4, 6, 9, and 11), based onthe average of 5 consecutive 1-minute counts performed with each detector on top of the table used toscan the cores, prior to scan activities.

A composite sample representing each core segment was then prepared by combining each set ofthree 1-foot increments in a bucket and breaking up the cores. The final segment of core may beless than or greater than 3 feet depending on the point at which virgin material was encountered.A sample (usually between 500 and 800 grams) was taken from each composite and forwardedto Outreach for analysis of Th-232 activity concentration. Analytical results are provided belowin Table 3. Analytical data reports are contained in Attachment C.

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Table 3 - Systematic Soil Core Composite Sample ResultsSegment Core Std.

Core Core Length Composite Depth Th-232 Error MDCNumber Segment (in.) Sample No. (ft) (pCi/g) (pCi/g) (pCi/g)

1 A 42 K-938 1 19.4 0.464 0.8892 A 36 K-939 1 15.2 0.447 0.5302 B 36 K-940 4 22.0 0.559 0.812= 3 A 36 K-934 1 23.6 0.911 0.697:3 B 36 K-935 4 28.4 0.633 0.8203 C 36 K-936 7 26.1 0.929 0.6843 D 60 K-937 10 17.6 0.407 0.7034 A 36 K-909 1 28.1 1.18 0.958it B 36 K-910 4 29.7 1.12 1.14it C 36 K-911 7 27.6 1.16. 0.9594 D 36 K-912 10 23.4 0.897 0.622

E 36 K-913 13 15.7 0.662 0.760= A 36 K-905 1 18.1 0.694 0.500.; B 36 K-906 4 18.3 0.663 0.481.; C 36 K-907 7 22.3 0.980 0.9685 D 48 K-908 10 27.4 1.04 0.7256 A 36 K-901 1 18.9 0.690 0.7976 B 36 K-902 4 19.6 0.829 0.808

C 36 K-903 7 16.3 0.577 0.554D 36 K-904 10 22.0 0.920 0.906

7 A 36 K-897 1 18.2 0.491 0.621J B 36 K-898 4 20.8 0.909 0.7767 C 36 K-899 7 11.6 0.408 0.3747 D 36 K-900 10 24.2 1.03 0.8678A 36 K-914 1 26.2 0.911 0.782

B 36 K-915 4 26.3 1.09 0.9433 C 36 K-916 7 28.1 0.993 0.7588 D 36 K-917 10 22.9 0.994 0.8769 A 36 K-918 1 31.5 1.18 0.7389_ B 36 K-919 4 29.1 1.25 0.9069 C 36 K-920 7 22.0 0.948 0.8059 D 36 K-921 10 21.3 0.753 0.657

11) A 36 K-922 1 25.0 1.08 0.89511) B 36 K-923 4 26.2 0.994 0.66811) C 36 K-924 7 26.5 0.724 0.98210 D 48 K-925 10 20.8 0.853 0.95711 A 36 K-926 1 23.8 0.674 0.9091I B 36 K-927 4 23.7 0.909 0.65011 C 36 K-928 7 25.4 0.702 0.85111 D 60 K-929 10 21.7 0.824 0.73712! A 36 K-930 1 23.7 0.723 0.876

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Segment Core Std.Care Core Length Composite Depth Th-232 Error MDC

Number Segment (in.) Sample No. (ft) (pCi/g) (pCi/g) (pCi/g)1]2 B 36 K-931 4 28.1 0.765 0.9581.2 C 36 K-932 7 26.2 0.975 0.8101]2 D 48 K-933 10 22.4 0.634 0.826

= Count: 44

= Average: 23.1Sid. Dev.: 4.38

. _ . Minimum: 11.6Maximum: 31.5

_ Median: 23.5

The gross and net Th-232 activity concentrations for 43 of the 44 systematic composite sampleswere below the BCM surrogate value of 31.1 pCi/g net Th-232 activity concentration (DCCL).The gross Th-232 activity concentration for Sample K-918 (Core No. 9, Segment A - 31.5pCi/g) slightly exceeded the DCCL value. However, the net Th-232 activity concentration forthe sample (30.4 pCi/g) was below the DCCL value. The average gross Th-232 activityconcentration was 23.1 pCi/g. The standard deviation of the 44 composite samples was 4.38,which fell below the estimated standard deviation of 4.4 used to calculate the minimum numberof samples required in the decommissioning plan.

2.3 Wilcoxon Rank Sum (WRS) Testing

The analytical results for the systematic soil core composite samples were evaluated using theprocedure contained in Appendix C, Volume I of this Final Status Survey Report (WilcoxonRank. Sum Test). The evaluation showed that the survey unit core sample results meet the DPstatistical criterion based on the first statistical test as described below.


Table 4 - Reference Group and Survey Unit Sample Results

Reference Th-232 Survey Unit Th-232Group Sample ID pCi/ g )Group Sample ID (pCi/g)

RI 219 1.01 Si K-897 18.2R2 90 1.37 S2 K-898 20.8R3 80 1.25 S3 K-899 11.6R4 45 1.23 S4 K-900 24.2R5 207 1.56 S5 K-901 18.9R6 222 1.19 S6 K-902 19.6R7 46 0.58 S7 K-903 16.3

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Reference Th-232 Survey Unit Th-232Group Sample ID (pCi/g) Group Sample ID (pCilg)R8 45 1.23 S8 K-904 22.0R9 359 0.74 S9 K-905 18.1RIO 195 1.48 S10 K-906 18.3R11 245 1.11 Sil K-907 22.3RI2 208 0.79 S12 K-908 27.4R13 171 1.16 S13 K-909 28.1R14 305 1.50 S14 K-910 29.7R15 312 1.26 S15 K-911 27.6R16 97 1.09 S16 K-912 23.4R17 58 1.04 S17 K-913 15.7R18 89 0.87 S18 K-914 26.2R19 192 1.32 S19 K-915 26.3R20 103 1.12 S20 K-916 28.1R21 290 1.31 S21 K-917 22.9R22 9 0.86 S22 K-918 31.5R23 44 1.29 S23 K-919 29.1R24 307 1.02 S24 K-920 22.0R25 321 1.03 S25 K-921 21.3R26 78 1.04 S26 K-922 25.0R27 263 1.54 S27 K-923 26.2R28 150 1.50 S28 K-924 26.5R29 93 0.67 S29 K-925 20.8R30 310 1.42 S30 K-926 23.8R31 196 0.91 S31 K-927 23.7R32 199 0.66 S32 K-928 25.4R33 316 1.13 S33 K-929 21.7R34 113 1.28 S34 K-930 23.7R35 1 0.98 S35 K-931 28.1R36 309 2.04 S36 K-932 26.2R37 290 1.31 S37 K-933 22.4R38 355 0.96 S38 K-934 23.6R39 27 1.24 S39 K-935 28.4R40 347 0.90 S40 K-936 26.1R41 174 0.78 S41 K-937 17.6R42 192 1.32 S42 K-938 19.4R43 112 1.50 S43 K-939 15.2R44 198 0.92 S44 K-940 22.0

Average: 1.15 Average: 23.1Std. Dev.: 0.29 Std. Dev.: 4.38Minimum: 0.58 Minimum: 11.6Maximum: 2.04 Maximum: 31.5Median: 1.15 Median: 23.5

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Sunrey Unit Kaiser-FSSB-006 which consists of a unit of BCM placed in an excavation resultingfrom the removal of radiologically-affected soil from the Retention Pond area, is considered aClass 1 survey unit with an approximate base surface area of 2,177 m2. It is located on the northside of the pond parcel within the excavation bottom associated with Survey Unit Kaiser-FSS-017 (Figure 3). The survey unit is bordered by a wall of non-impacted soil (clean import borrowmaterial) to the north (along Fulton Creek), excavation backfill Survey Units Kaiser-FSSB-009and Kaiser-FSSB-010 to the west, excavation backfill Survey Units Kaiser-FSSB-003 andKaiser-FSSB-004 to the east, and excavation backfill Survey Units Kaiser-FSSB-003, Kaiser-FSSB-005, and Kaiser-FSSB-007 to the south.

A total of six 2-foot layers (lifts) of BCM was placed in Survey Unit Kaiser-FSSB-006.


. The 100 percent coverage gamma scan of each lift (final as-left condition) did notindicate the presence of small areas (1 m2) of elevated activity (greater than the DCCLfor the site).

O The gross and net Th-232 activity concentrations for 43 of the 44 systematic compositesamples were below the BCM surrogate value of 31.1 pCi/g net Th-232 activityconcentration (DCCL). The gross Th-232 activity concentration for Sample K-918 (CoreNo. 9, Segment A - 31.5 pCi/g) slightly exceeded the DCCL value. However, the netTh-232 activity concentration for the sample (30.4 pCi/g) was below the DCCL value.The analytical results meet the DP statistical criterion based on the first statisticalevaluation of the data (WRS Test procedure).


Q:%P4OWAA4C=FSS RpVol-e ylkit FSSB OO6$SSB 006 ados 10 Revision 03/22/06









Q:0P4000\1A4072\TSS RepoxIs\Volume IMSurvey Unk FSSB 006\Atchment MAtt3chment A toc.doc

WMNal#7

FI'

Atchmeot A, Figure A-1Gross Gamma Background and Scarling SuNey Results

SuNey Unit Kaiser-FSSB 006 LiR No. I920 0 C

8 0 0 0

820 0 C

- 0 0- C> CD C:


Scanning results are recorded at 2 second intervals,C-LU7-

* CPM Nal #7

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Attachment A, Figure A2Gross Gamma Background and Scanning Suqey Results

Surey Unit KaiserFSSB-OO6 Lift No. 29 2 0 00o DO4C

8 0 00,' CoC: :


bg

0

Scanning readings are recorded at 2 secc)nd intervals.

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*CPM Nal #7 Aftachment A, Figurep 3Gross Gamma Background and Say ing Surey Results

Suqey Unit KaiseroF$SB036 Lift No. 3-1 5000~

-1 0 0 00c~cz

-1 -i 5000c c

-1 -I 0000 c

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Gross Gamma Background and Scanning SuNey ResultsSuNey Unit Kaiser-FSSB006 - R No. 4I

-1 :2 -0-I za --a C:) gc_ C>

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-u -I z~tC3CDOC

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9000c c

92000

8000~


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.

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Altachment A, Figure A-5Gross Gamma Background and Scanning SuNey Results

SuNey Unit Kaiser-FSSB*006- LiR No. 5Backgrounds are 1 minute readings.

bg

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-1 1 8000

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AachmentA, Figure AGross Gamma Backgrond and Scanning Suqey Results

SuIey Unit Kaiser FSSBH 6 Lift No. 6


. ~p


N0

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I1

1II8

2

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3 1

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1 2)SCALE - FEET

030 30

9 0SCALE - METERS

9

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* SYSTEMATIC SOIL CORE SAMPLING LOCATIONBASED ON RANDOM START POINT ANDAN EQUAL DISTANT TRIANGULAR GRID

*OR4

0 RANDOM START POINT




PREPARED FOR

KAISER ALUMINUM & CHEMICAL CORPORATIONTULSA, OKLAHOMA

APPROVEDI/ 3-3 - tx.CHECKEd<:o 3 - 3 -0(c

DRAWN DEB 01/30/06DRAWING NUMBER

PA4072072A Penn E&R___ Enviromnnnt & Remediafo Inrc.




Q:\P4000\PA4072\FSS RepansWolurt Bl1Suvey Unit FSSB 0M6AtaUxew=I 1B - Soi1 Survt-y Unit Wovkslree\A~ttnchenet B toc~doc




1. Soil Survey Unit: Kaiser-FSSB-006 .


3. Net Th-232 Acceptance Criteria (pCi/g): 31.1

4. Dimensions (m): Approximately 60 meters x 36 meters; Area, A (n2): 2,177

5. Estimnate of Gross Gamma Scan Background Readings (cpm)




Grid Node Length) for a standard 2,000 m2 Class 1 survey unit are:



7. If the area of the Survey Unit is less than 2,000 m2, recalculate the corresponding Triangular Grid Node

Length (LI) for the Survey Unit Area (A), using the following formula: LI = (A/(0.866 x 9))'2: N/A

8. If N is greater than 9 and the A is other than 2,000 n 2, recalculate the corresponding Triangular Grid Node

Length (LI) using the following formula LI = (A/(0.866 x N))'12: N/A

9. If A is greater than 2,000 in2 and N is equal to 9, recalculate the minimum number of samples (N1)

corresponding to a Triangular Grid Node Length (L) of 16 in using the following formula N1 = A / (0.866 x

115 ), Ml: 10

11). Calculate the height (h) of the equilateral triangle with side length equal to L (or (LI) using the following

formula: h = ((L2 - (L/2)2) 2: 13.9 m.

Q:'14000\E A4072\FSS Repoons\Volunne IlDSurvey Unit FSSB 006\Attaclutent B -Soil Survey Unit Worksheets\Soil Survey Unit Worksheet No. I.doc





RANDOM START POINT

Ix axis ( Meters) y axis ( Meters)

16 I 4 I lower boundupper bound

to

( 0,0)

Northx axis

Q:WP40OOOPA4072FSS ReportslVolurne IfISurvey Unit FSSB 006lAttachrnent B - Soil Survey Unit WorksheetsSoil Survey Unit Worksheet No. 2

ATTACHMENT C


Outreach')oratory

,v OKC 740;:2(918) Z51-Z515rAX (918) 251-0008

- AEL

August 19, 2005


Y_ IFY'>1/ d 6

Project: Kaiser Thorium Remediation PA40004072OUTREACH LAB ID: 20050646

Dear Mr. Weyant:

Please find enclosed the analytical report for your samples received in our laboratory onAugust 15, 2005 for the above captioned project. Forty-four soil samples were receivedin good condition and analyzed by Gamma Spectroscopy without drying and grindingand Percent Moisture with a expedited 5 work day turn. Results were faxed on 8/19/05.

All Quality Control- for the requested analyses is reported on the analytical report. Thelaboratory control standard and duplicates for all analyses were within method controllimits.


Thanik you for choosing Outreach Laboratory and if you have any questions, please callus at 918-251-2515.

Laboratory

ODEQ ID #9517DEQ LIC. #27522-01

CERT. ID #OK00l


Kaiser Aluminum

Thorium Remediation

20050646

8/19/05

8/15/05

I of 12

OutreachV boratoly

Jiu .4orth Aspen' een Arow. OK 74012(918) 251-2515FAX (91 8) Z5 1-0008

Analytical Report



Lab ID:

Client ID:Date Sampled:Matrix:

Th-232

Percent Moistwe

20050646-01

K-897

8/12/09 9:00:00 AMSAil

Radiochemical AnalysesHASL 300 18.2+/-0.491 pCi/g


0.621 8/15/05 SD

8/18/05 8/19/05 MD

Lab ID:

Client ID:

Date Sampled:Matrix:

Th-232

Percent Moistwue

LabiD:

Client'ID:Date Sampled:

Matrix:

2005064-02

K-898&812/05 9:01:00 AMS-Dil



0.776 8/15/05 SD

8/18/05 8/19/05 MD

21D050646-03

K-899

8/12/05 9:10:00 AM

Soil


11.6 +/- OA08 pCi/gInorganics Analyses

0.374 8/15/05 SD

Percent Moisture ASTM D2216-92 16.4 % 8/18/05 8/19105 MD

l

Lab ID:

Client ID:


Th-232

2D050646-04

K-900

8./12/05 9:15:00 AMSoil


Inorganics AnalysesASTM D2216-92 14.9 %Percent Moisture 8/18/05 8/19/05 MD

BDL= Below DNtection LimitKYA'



200506468/19/058/15/052 of 12

Outreach- boratory~ 4oith Aspen,,.,)ken Arrow, OK 74012(918) 251-2515rAX (918) 25140008 Analytical Report




Th-232

Percent Moisture

20050646-05K-9018/12/05 9:30:00 AMSoil


Inorganics AnalysesASTM D2216-92. 16.1 %

0.797 8/15/05 SD

8/19/05 MD8118105

Lab ID:Client ED:Date Sampled:Matrix:

2(1050646-06K-9028/12/05 9.40:00 AMSoil



Th-232

Percent Moisture

0.808 8/15/05 SD

8/19/05 MD8/18/05


Th-232

Percent Moisture

20050646-07K-9038/12/05 9:42:00 AMScil

Radiochemical Analyses16.3 +/- 0.577 pC/gHASL 300

ASTM D2216-!

0.554 8/15/05 SD


15.6 % 8/18/05 8/19/OS MD


20050646-08

K-9048/12/05 9:58:00 AMSoil



Th-232

Percent Moisture

0.906 8/15/05 SD

8/18/05 8/19/05 MD

BDL = Below Detection Limit



200506468/19/058/15/053of12

Outreach' bortory.14oken Arrow, OK 7401Z(918) ZSI-2515FAX (918) 251 -0008 *Analytical Report




20050646-09K.-905&'12/05 9:45:00 AMSDil

Th-232

Percent Moistuwe

HASL 300

ASTM D2216-'

Radiochemical Analyses18.1+/-0.694 pCi/g 0.500 8/15105 SD


14.1 % 8118105 8/19/05 MD


2D0050646-10K.-9068112/05 9:55:00 AMSoil


18.3 +1- 0.663 pCi/gInorganics Analyses

92 14.8 %

0.481 8/15/05 SD

HILI. Percent Moistue ASTM D2216-' 8/18/05 8/19/05 MD


Th-232

Percent Moisture

20050646-11}K-9078112/05 10:00:00 AMSoil r



0.968 8/1505 SD

8/18/05 8/19/05 MD


Th-232

Percent Moisture

20050646-12}K-9088/12/05 10:10:00 AMSoil



0.725 8/15105 SD

8/18/05 8/19/05 MD

FBDL= Below Detection Limit

<4Am



200506468/19/058/15/054 of 12

Outreach' boratory

.dort Aspen,..,kae Arrow. OK 7401Z(918) 2SI-2515FAX (918) Z51-0008 Analytical Report


AnalysisDate

Analyst


Th-232

Percent Moistuzu

20050646-13K-9098/12/05 10:10:00 AMSoil

Radiochemical AnalysesHASL300 28.1 +/- 1.18 pCi/g


0.958 8/16/05 SD

8/18/05 8/19/05 MD


20050646-14K-9108/12/05 10:38:00 AMSoil



92 16.2 %

1.14 8/16105 SD

4i.'I Percent Moishre ASTM D2216-! 8/18/05 8/19/05 MD


20050646-15K-9118/12/05 10:26:00 AMSoil

Radiochemical AnalysesRASL 300 27.6 +/- 1.16 pCi/g

Inorganics AnalysesASTM D2216-92 16.3- %

Th-232

Percent Moisture

0.959 8/16/05 SD

8/18/05 8/19/05 MD


Th-232

Percent Moisture

20050646-16KC-91281/12/05 10:33:00 AMSoil



0.622 8/16/05 SD

8/18/05 8/19/05 MD

B3DL = Below Detct~ion Limit

K)sjJ



200506468/19/0581151055of 1

OutreachV borator),kenAr~ow, OK 740 1Z

(918) Z51-2515FAX (918) ZSI.0008 Analytical Report




Th-232

* Percent Moisture

20050646-17K-9138/12/05 10:36:00 AMSoil


Inorganics Analyses'ASTM D2216-92 13.1 %

0.760 8/16/05 SD

8/18/05 8/19/05 MD

LAb ID:Client ID:Date Sampled:Matrix:

20050646-18K-9148/12/05 10:30:00 AMSoil



lb-232

icky .Percent Moisture

0.782 8/16/05 SD

8/18/05 8/19/05 MD


lh-232

Percent Moisture

20050646-19K--9158/12/05 10:45:00 AMSail



0.943 8116/05 SD

8/18/05 8/19/05 MD

Lab ID:Client ID:-Date Sampled:Matrix:

Th-232

Percent Moisture

20050646-20K-9168/12/05 10:55:00 AMSoil



0.758 8/16/05 SD

8/18/05 8/19/05 MD

BDL -Below Deection Limit



200506468/19/058/15/056 of 12

Outreachi. lboratory

i.Ivken Anow. OK 74012(918) 251-2515FAX (918) Z51-0008 Analytical Report




20050646-21K.-917

8/12/05 11:05:00 AMSDil



92 15.9 %

0.876 8/16/05 SD

Percent Moisture ASTM D2216-! 8/18/05 8/19/05 MD

Lab ID:Client ID:

.'Date Sampled:Matrix:

2D050646-22IC-9188/12/05 10:50:00 AMSoil

Radiochemical AnalysesHASL300 31.5+/- 1.18 pCi/g


Thb-232

.Percent Moisture

0.738 8/16/05 SD

8/18/05 8/19/05 MD

Lab ID:Client ID:Date Sampled:'Matrix:

20050646-23XC-919

8/12/05 11:00:00 AMSoil


29.1,+/- 1.25 pCi/gInorganics Analyses

0.906 8/16/05 SD

Percent Moisture ASTM D2216-92 14.5 % 8/18/05 8/19/05 MD


20050646-24K-9208/12/05 11:07:00 AMSoil


Inorganics AnalysesASTM D2216-92 132 %

Th-232

Percent Moisture

0.805 8/16/05 SD

8/18/05 8/19/05 MD

BDL -Bclow IDtection Limit


Outreach- 1oiatory

"o 4ortt AspenBroken Arrow, OK 74012(918) Z51-2515FAX (918) 251 40008


200506468/19/05

8/15/057 of 12



Date


Th-232

Percent Moistwe

20050646-25K-9218112/05 11:14:00 AMSoil



0.657 8/16/05 SD

8/18/05 8119/05 MD


20050646-26K.-922812/05 11:15:00 AMSoil


Inorganics AnalysesASTM D2216-92 17A %

Th-232

Percent Moistwe

0.895 8/16/05 SD

8/18/05 8/19/05 MD


20050646-27K'-9238112/05 11:25:00 AMSoil


262 +/- 0.994 pCi/gInorganics Analyses

92 15.6 %

0.668 8/17/05 SD



Th-232

Percent Moisture

20050646-28IC-9248/12/05 11:35:00 AMSoil



0.982 8/17/05 SD

8/18/05 8/19/05 MD

BDL Below Detection Limit

Client:Client Project:Lab Number:Date Reported:Date Received:Page Number.

Kaiser Aluminum

Thorium Remediation2Q050646

8/191058/151058 of 12

Outreach. 'otatory

a'Iorth Aspe4roken Arrow. OCK 7401 2

(918) 251-2515rAX (918) 251-0008 Analytical Report




210050646-29K.-9258'12/05 11:40:00 AMSDii

Radiochemical Analyses20.8 +/- 0.853 pCi/g*Th-232 HASL 300 0.957 8/17/05 SD



20050646-30K-9268/12/05 11:23:00 AMS-Dil

Radiochemical Analyses.23.8 +/- 0.674 pCi/glh-232 HASL 300 0;909 8/17/05 SD

Inorganics AnalysesASTM D2216-92 18.2 %Percent Moistwe 8/18/05 8/19/05 MD


20050646-31K-927&'12/ 05 11:32:00 AMSDII

Radiochemical Analyses23.7 +/- Q.909 pCVgTh-232

Percent Moisture

HASL 300

ASTM D2216-!

0.650 8/17/05 SD


.13.9 % 8/18/05 8/19/05 MD


Th-232

Percent Moisture

20050646-32K-928812/05 11:42:00 AMSoil



0.851 8/17/05 SD

8/18/05 8/19/05 MD

BDL= Below Detectiom Limit

Client:Client Project:Lab Number.Date Reported:Date Received:Page Number:


200506468/19/058/15105

9 of 12Outreach

- boratoryBroken Arrow. OK 7401 2(918) 251-2515FAX (918) 251-0008 Analytical Report




20050646-33KI-9298/12/05 11:48:00 AMSoil

Radiochemical Analyses21.7 +/- 0.824 pCi/gTh-232 HASL 300 0.737 8/17/05 SD

Inorganics AnalysesASTM D2216-92 9.9 %Percent Moistwr 8/18/05 8/19/05 MD


20050646-34K:-9308/12/05 12:05:00 PMSoil


Inorganics AnalysesASTM D2216-92 13.7 %Percent Moisture 8/18/0S 8/19/05 MD


20050646-35K-9318/12/05 12:10:00 PMSoil


28.1 +/-0.765 pCi/g

Inorganics Analyses92 15.3 %

0.958 8/17/05 SD

8/18/05 8/19/05 MDPercent Moisture ASTM D2216-'


Th-232

20050646-36K-932

8/12/05 12:20:00 PMSoil


Inorganics AnalysesASTM D2216-92 13.2 %Percent Moistuwe 8/18/05 8/19/05 MD




200506468/19/058/15/0510 of 12

Outreach, boratory

YjY .40rhAdPDioken Arrow. OK 74012(918) Z51-2515FAX (918) 7.5t.0008 Analytical Report

Result UnitsMethod DL *PrepDate



Th-232

Percent Moisture

20050646-37}i-9338/2105 12:30:00 PMSoil

Radiochemical AnalysesHASL 300 22.4 +/- 0.634 pCVg

Inorganics AnalysesASTMD2216-92 ' 15.7 %

0.826 8/17/05 SD

8/18/05 8/19/05 MD


Th-232

Percent Moistwe

20050646-381Co-9348112/05 12:24:00 PMSon



0.697 8/17/05 SD

8/18/05 8/19/05 MD


2D050646-39K.-935&'12/05 2:14:00 PMSoil



Th-232

Percent Moistwue

0.820 8/17/05 SD

8118/05 8119/05 MD


20050646-40K.-936

'12105 2:15:00 PMSDil

Thl-232 HASL 300Radiochemical Analyses

26.1 +1- 0.929 pCi/gInorganics Analyses

92 13.8 %

0.684 8/17/05 SD

8/19/05 MDPercent Moisture ASTM D2216-' 8/18/05

BDL =Below Detcction Limit



200506468/19/05

8/15/05

i1 of 12Outreach

W 13oratory1 r Aspen

Žt(Cfl'AffoW. OK 74012(918) Z51-7515FAX (918) 251-0008 Analytical Report




Th-232

Percent Moisture

20050646-41K-9378/12/05 2:34:00 PMSoil



0.703 8/17/05 SD

8/18/05 8/19/05 MD


20050646-42K-9388/2105 2:15:00 PMSoil




2(1050646-43K-9398112/05 2:30:00 PMSoil

Th-232 IIASL 300Radiochemical Analyses

15.2 +/- 0.447 pCi/gInorganlcs Analyses

92 9.7 %

0.530 8/18/05 SD



Th-232

20050646-44K-9408/12/05 2:40:00 PMSoil



* BDL=Bclow Detection Limit

Client:Client Project:

riP7 Lab Number:Date Reported:

Outreach Date Received:',)oiatory Page Number:

b.wen Affow, OK 74012(918) 251-2515FAX (918) Z51 -0008


200506468/19/058/15/0512 of 12

QC Report

Parameter Blank LCS LCSD DUP MS MSD Date%REC %REC RPD RPD %REC %REC RPD

Ac228

,Ac228

Ac228

Ant-241

Am-241

Amn-241

Co-60

Co-60

CO-60

Cs-137

Cs-137

Cs-137

Percent Moisture

'ercent Moisture

ql YI eercentMoisture

20.0

4.0

15.7

8117105

8/16/05

94.0

100.0

89.0

95.0

94.0

93.0

94.0

96.0

96.0

101.0 7.7

101.0 0.8

87.0 1.9

100.0 5.5

101.0 7.1

90.0 2.9

100.0 5.5

98.0 1.6

96.0 0.3

U16t05

U17105

U15105

8/16t05

8117105

U15t05

U16105

U17105

8/15105

U19(05

8119/05

U19/05

1.3

0.3

4.1

Lab Approval:

BDL= Below D:tection Limit

F

C I O CUST. .O

..CHAIN Oe CUSTODY

..-

* (' OUTREACH4 LABORATORY

:3l NorionAspenBroken Arrow, OK74012 .Phone: (918) 251-2515Fax: (918) 251-0008

* : '

Results To : Cmay f' -A 4 A: CwN ,:Dc

Name ..

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PRESERVATIVE

1. HNO3 pH"2. Ice 4C3. HCI pH<24. "2SO4 pH25. NOON pHt1.REQUESTED TRNAROUND TIME : 1 h

(ADDITIONAL APES MAY APELY)

SAMPLER X ,

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EI RME. . ECEIVEDBY V;

RELi' N D Y _DATE TIME . RECEIVED BY DATE 1TMEMy sgnaturO on thbs chaln of custody form indicatea I am euthorlisd by the above comhpiny to relnase samles fr analysist n The company agrees to pay the dntlre balance upon receoptol senip'tedata and Rt is undieritotd arn agreed thet balance ianted over tdhltyp(0 daS subect to a 1 Pe o erannum) lte charge In the evento 6 defalteut cotne nybecomes legally ttabl for any reasonable attorey andl/or collection fees and all'related cost$ nkecesary to remitt the endre balance to Outreach Technotogle, nc. (utreach Laboratory).as lgafy Pblofor ny oisnabo atorn c~ncdoi S.h .ch.ogls, It (vtrliI

OUTREACH.LABORATORY

. CHAIN.OF CUSTODY

* v-

tults To: :CompanyV&k(&l(7 : 'Wt.Ik 7eI'it t. .

Name 9AD t- C . \ N1 A4_ I . C * I I.E . q--

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Cornp'anyka P& I fkA 4 ) 2311 North Aspen.Brok.rn Arrow, OK 74012Phone: (918) 251-2515Fax: (918) 251-0008

.. rent _-.,%-A u 'I.l

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PRESERVATIVE#

1. HNO3 pH<22 ice 'C3. MCI pH1d4. H25104 pH<2S. N&OH pH>11

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IA9i. _ __'._ _iX____ q .f'-1 1: I T I________=___7__

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H .M~Y~EVE D 7 //'JTIMLE..J2

RELINQUISHED BY: O ATEETIM F _ RECEIVED BY- DAT -IMy signature on this chain of custody form Indic es tat I am authorized by the above cornpany to reease sample, for anati The company agrree to pay the t rof sample data and it is urderstood and agreed that any baiance canied over thirty (30) day. b iubtecttoa 1.5% por month (18% per annum) ldte charge In the *ntoid

I AlRI5 HAN. ftr reR f.-i" mw, rmami tJ6.t* rnA ael related cottS necesoary to remilt the entire blaance to Outreach Technologies Inc (Outreach LiboratorY)

I IWYAtJ

4- OUTREACHLABORATORY

CHAIN OtCUSTODY ::.r .. . . I ... "k - , .., ..

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.311 North Aspen.. . .-;Broken Ar o-v;0- OK 1 -I40.

Phone: (918) 251-2515Fax: (918) 251-0008

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9 1t- NameZ4M\t: SY Al

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Addresslh P. M-wt- A7.ciw~~~~A -o. State (S Vv. ZP79|

PO# MVT- j&?-7

PROJECT # P A -o 40% - \44 r7

PROJECTNAME PhpvEt_ ' ( Cia,

REQU TURNAROUND TIME T D >t(ADDITI C GES MAY APP

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RELIN DSA BY R . DATE . TIM E.. RECEIVED BY: -DATETIMF ..

My signature on this chaln of custody fom tndijites that I am. authorlzed by the aboVe cOmpny t release $amples fot analysuis Te company agnres to pey the entire bal-a uden necelpt,of sample data and It Is understood and agreed that any balance carried overthirty (30) dayiissuecttoa 15% per month (1Operannum) fate chirge In the ivent f cefatit the company|

-- t ^'4'." tIN I 'nd aS relted cost necesurY t6 emit the entdr balance to Outreach~echtoioiolea. Inc. (Outrsah Laortory).,

.OUTREACH4 LABORATORY

-~31i Norrn Aspen.-Broken Arrow, OK 74012- Ct -,

*Phone: (918) 251-2515Fax: (918) 251-0008

Result To:. CHAIsn 0 C ST D . . .r. .P UT. -:

Copn J\4 .~Af~~tviv . BilTO:rpay* _IEq~

NaC.M! m:Žt4~ oman .

AAA'-" 1' __________________

1.4'' _ -5---'I Ur

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RELINOUISHED BY: . .. DATE TIME RECEIVED BY. DATEi-TI.TiME -

My signature on this chatin of custody lorm edes that I amuthiorized by the above company to release eample. for analyasis The company agrees to pay the entinr balance upon reelpt

of sample data and it lh undetst6od and. ag t that any balaneeecarried ove;l ty (30) datys is subfect toe a iS% per month (18% per annum) late charge. In the *vent ;o deault the company

becomes legally liable tofrny reasonable attciney aqd/or coectilbn fees and an related costa necessary to remit the entire balance to Outreach Thrinolloges, Inc. (Outreach Ltaboratory).

: e-

SAMPLE. L-,'IN

Ae:z

Date Received: 8/15/05 10:25:40

Sample ClientNzymber Sample ID

Lab Number:

DateMatrix. Sampled

Soil 03/12/09

20050646

ContainerType

Plastic

ContainerSize

Due: 8119/05

Custody SealSeal IntactPreservation



Yes Yes16 oz None Yes Yes



Soil


Soil

08/12/05 Plastic

08/12/05 Plastic

08/12/05 Plastic20050646-04 A K-900Percent Moisture (LOD)


Soil

16oz

16 oz

16 oz

l60z.

16 oz

None Yes

None Yes

None Yes

Yes

Yes

Yes

Yes

Yes


Th-232 by'Gammna Spec

Soil 08/12/05 Plastic None Yes

20050646-06.A K-902Percent Moisture (LOD)





Soil

20050646-08 A K-904* Percent Moisture (LOD)


Soil

08/12/05 Plastic

08/12/05 Plastic

08/12/05 Plastic

08/12105 Plastic

16 oz

60oz

16 oz

None

None

Yes

Yes

Yes

Yes

Yes

Yes

Yes


TE-232 by Gamma Spec

Soil None

Soil20050646-10 A.- K-906 : ' .16oz None Yes- A

Percents re (LOD)Th-232 by Gamma Spec

20050646-11 A .K-907Percent Moisture (LOD)Th-232 bv Gamma Spec

20050646-12 A v- MOPercent Moisture (LOD)

Th.232 by Gamma Spec

Soil

Soil

Soil

Soil

08/12/05 Plastic

08/12/05 Plastic

16 oz

16 oz

16 oz

16 oz

None Yes

None Yes

Yes

Yes

Yes

Yes




08/12/05 Plastic . None Yes

08/12/05 Plastic None Yes









Soil

Soil

Soil

Soil

08/12/05 Plastic

08/12/05

08/12/05

Plastic

Plastic

16 oz

16oz

16oz

16 oz

None .

None

Yes

Yes

Yes

Yes

Yes

Yes

None Yes -

08/12/05 Plastic None Yes



Soil

Soil

08/12/05 Plastic

08/12/05 Plastic

16oz

16 oz

None Yes Yes

YesNone Yes

20050646-2- - K-917Percent Moisture (LOD)Th-232 by Gamma Spec

08/12/05 isticSoil 16 0z I0rNone

20050646-22 A K-918 Soil

* Th-232 by Gamma Spec

08/12/05 Plastic 16oz None Yes Yes


Soil

20050646-24 A K-920Percent Moisture (LOD)Th-232 by Gamma Spec.

Soil


Soil


Soil

08/12105 Plastic

08/12105 Plastic

08/12/05 Plastic

08/12/05 Plastic

08/12/05 Plastic

08/12/05 Plastic

08/f2/OS Plastic

16oz

16oz

16oz

16 oz

16 oz

16oz

16 oz

60oz

None Yes

None Yes

None Yes

None Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes


Soil None Yes



Soil

Soil

Soil

None Yes

None Yes


08/12/05

08/12/05

Plastic None Yes

20050646-31 A K-927 Soil Plastic 16 oz None Yes Yes

Percent '- :re (LOD)



Th-232 bv Gamma Spec

Soil 08/12/05 Plastic 16 Cz None Yes Yes

2005eo0646-3J A Y-929



S Al


Tb-232 by Gamma Spec

Soil



Soil

20050646-36 A K-932



Soil

08/12/Q5 Dl-ets'

08/12/05 Plastic

08/12/05 Plastic

08/12/05 Plastic

08/12/05 Plastic

08/12/05 Plastic

08/12/05 Plastic

16CZ

20050646-37 A K-933



Soil

16oz

16oz

16oz

16 oz

16 oz

16 6z

16 oz

16oz

None Yes

None Yes

Yes

None

None Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

20050646-38 A K-934

. Percent Moisture (LOD)


Soil None Yes


ltb-232 by Gamma Spec

Soil None Yes



Soil 08/12/05

08/12105

Plastic

Plastic

None Yes

20050646-41 A K-937Percent Moisture <LOD)


Soil None Yes

l-

20050646e K-938Percefit,..,isture (LOD)




(7.08/12105 V 'lasticSoil

Soil

Soil

08/12/05 Plastic

16 oz

l6oz

16 oz

None Yes

None Yes Yes



08/12/05 Plastic None Yes Yes

CONTAINER INSPECTION

# Coolers Custody Seals Broken - Y/ I Temperature . Blue Ice I Wet Ice Radiation Surve3

SAMPLE INSPECTION

Custody Seals Broken . Chain of Custody Record3/N Labels in Tact b3l Radiation Survey Complete /N

Anomalies: .

'so2 fixed Iremovable

Inspected By: DATE

QA or Designee Review: DATE

Sample Custodian ei } 5-6

Project Notes:

SUB-REPORT


TABLE OF CONTENTS

Page

1.0 BACKGROUND




I

2

2310

12

ATTACHMENTS

ATTA.CHIRENT A:

ATTACHIMENT B:

A¶TACHMENT C:

Figure A-I Gross Gamma Background and Scanning Survey Results - Lift 1Figure A-2 Gross Gamnma Background and Scanning Survey Results - Lift 2Figure A-3 Gross Gamma Background and Scanning Survey Results - Lift 3Figure A-4 Gross Gamma Background and Scanning Survey Results - Lift 4Figure A-S Gross Gamma Background and Scanning Survey Results - Lift 5Figure A-6 Gross Gamma Background and Scanning Survey Results - Lift 6Figure A-7 Gross Gamma Background and Scanning Survey Results - Lift 7Figure A-8 Gross Gamma Background and Scanning Survey Results - Lift 8Figure A-9 Systematic Soil Core Sampling Locations



Q:\P4001)\PA4072\FSS Reports\Volume TI\Survcy Unit FSSB 007\FSSB 007 TOC.doc




March 22, 2006

1.0 BACKGROUND

This sub-report documents the results of pond parcel excavation backfill unit final status surveyactivities completed as part of the Thorium Remediation Project at the Tulsa, Oklahoma facility(Figure 1). Specifically, this technical report addresses the final status survey of Survey UnitKaise:r-FSSB-007, which consists of a unit of Below Criteria Material or BCM (less than 31.1net pCi/g Th-232 material) placed in an excavation resulting from the removal of radiologically-affected soil from the Retention Pond area. Survey Unit Kaiser-FSSB-007 is considered a Class1 survey unit with an approximate base surface area of 1,381 m2. It is located on the east side ofthe pond parcel within the excavation bottom associated with Survey Unit Kaiser-FSS-018(Figure 3). The survey unit is bordered by excavation backfill Survey Units Kaiser-FSSB-006and Kaiser-FSSB-010 to the north, excavation backfill Survey Unit Kaiser-FSSB-008 to thesouth, excavation backfill Survey Unit Kaiser-FSSB-005 to the east, and excavation backfillSurvey Units Kaiser-FSSB-010 and Kaiser-FSSB-012 to the west.

A total of eight 2-foot layers (lifts) of BCM material was placed in Survey Unit Kaiser-FSSB-007. It should be noted that BCM was placed in excavation backfill Survey Units Kaiser-FSSB-007 and Kaiser-FSSB-008 simultaneously.


Q.74OJ.O72'PSS RdsW~olmc 1\thiISSD UniSt 00 1TFtdo0 1 Revision 03/22/06




Each 2-foot lift of BCM was surveyed through a 100 percent coverage gamma scan to confirmacceptable radiological conditions and identify any elevated areas. During the scanning of eachlift, the detector was held close to the BCM surface (I to 2 inches) and moved in a serpentinepattern. Approximate equal-distant background measurements were also obtained at 1-meterabove the ground surface for each lift of BCM placed. A statistical summary of the backgroundsurvey and 100 percent coverage gamma scan of each BCM lift placed in the survey unit isprovided below in Table 1.

Table 1 - Gross Gamma Scan Results Summary (cpm)

Lift No. of ScanArea 2-sec. Rate Ave. Stdev. Min. Max. Median

Name Date (n) Scans (mi/s) (cpm) (cpm) cpm (cpm) (cpm)1st liflScan 08/31/05 1,381 1,911 0.36 97,690 10,817 39,382 123,471 100,24415' lif:Bkgrd. 09/01/05 1,381 12 N/A 92,754 5,361 84,353 100,719 93,6092 liftScan 09/06/05 1,381 1,553 0.44 98,919 13,138 46,964 143,394 96,9972x -ritBkgr._ 09/06105 1,381 12 N/A 89,036 7,083 76,746 100,391 86,6703' liftScan 09109105 1,240 1,845 0.34 93,552 11,406 29,830 161,330 92,5423 liftBg. 09/09/05 1,240 12 N/A 86,941 3,397 82,597 93,166 85,9924 liftScan 09/12/05 1,120 1,476 0.38 87,774 11,684 45,547 136,442 87,7334 lftBkgrd. 09/12/05 1,120 15 N/A 80,519 5,956 68,967 90,837 80,2325 liftEScan 09/14/05 1,000 1,227 0.41 70,900 9,248 43,635 99,800 70,256T HiltBkgrd. 09/14/05 1,000 10 N/A 62,458 4,946 51,532 70,791 62,347

6liit_Scan 09/19/05 1,000 1,622 0.31 91,800 9,237 40,750 115,647 92,2616 lii t

_Bkd. 09/20/05 1,000 8 N/A 89,234 4,144 84,013 96,274 88,9457 li 02tScan___ 09/22/05 1 ,000 1,763 0.28 89,208 11,114 63,916 134,182 92,376

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Lift No. of ScanArea 2-sec. Rate Ave. Stdev. Min. Max. Median

Name Date (m) Scans (mis) (cpm) (cpm) (cpm) c Acpm)Vh liftBkgrd. 09/23/05 1,000 8 N/A 76,607 9,359 66,700 94,834 74,5008l Li(tScan _ 09/27/05 760 782 0.49 83,777 9,162 66,341 111,928 85,276

Bkgrd. 09/27/05 760 13 N/A 78,067 7,618 66,126 89,817 79,030

Contour maps of the gross gamma background and final (as-left condition) scanning surveyresults are presented by BCM lift on Figures A-1 through A-8 contained in Attachment A.The )L00 percent coverage gross gamma scan of the 2-foot lifts did not indicate the presence ofsmall areas (1 m2) of elevated activity (above the DCCL for the site).


The final status survey also consisted of systematic soil core sampling based on a random startpoint and an equal-distant triangular grid. The Minimum Number of Core Samples (core holes)Required (N) based on the scan MDC was determined to be 9, as documented on Soil SurveyUnit Worksheet No. 1 (Attachment B). Once N was determined, the Survey Unit Area (A) of1,381 m2 along with the N of 9 were used to calculate the Triangular Grid Node Length (L) of13.3 meters and the Height of the Equilateral Triangle (h) of 11.5 meters. A random start pointwas generated using the random number feature of Excel and documented on Soil Survey UnitWorksheet No. 2 (Attachment B).

A layout of the soil sampling locations is provided on Figure A-9 contained in Attachment A.The soil core sample locations were demarcated in the field using a GPS unit. A total of 9 coreholes (sample locations) were installed on the grid prescribed over the survey unit (Core Nos. Ithrough 9). The core holes were of various depths depending on the location within the surveyunit. Core segments of BCM (typically 3 feet in length) were scanned in the field in 1-footincrements and were also characterized by a 1 minute static count of gross gamma activity. Theresults are presented below in Table 2.

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Table 2 - Soil Core Segm ent Gross Gamma Survey ResultsSegment Core Depth Gross Gross Static Net Static

Core Core Length Below Scan Rate Count CountNumber Segment (inches) Surface (ft) (kcpm) (cPm) (cPm)L

1 A 36 1 30 31,154 6,3361 A 2 29 30,628 5,8101 A 3 30 28,711 3,8931 B 36 4 31 32,443 7,6251 B 5 31 33,162 8,3441 B 6 35 36,767 11,949I C 36 7 31 31,390 6,5721 C 8 32 32,441 7,6231 C 9 32 33,615 8,7971 D 48 10 31 32,571 7,7531 D 11 32 32,664 7,8461 D 12 34 33,071 8,2531 D 13 33 31,485 6,6672 A 36 1 32 32,362 7,5442 A 2 34 33,216 8,3982 A 3 33 32,704 7,8862 B 36 4 29 28,196 3,3782 B 5 29 29,697 4,8792 B 6 30 20,117 -4,7012 C 36 7 30 30,934 6,1162 C 8 32 32,827 8,0092 C 9 31 32,832 8,0142 D 36 10 34 36,177 11,3592 D 11 35 36,713 11,8952 D 12 35 34,804 9,9862 E 36 13 29 30,634 5,8162 E 14 29 27,787 2,9692 E 15 29 27,660 2,8423 A 36 1 29 28,649 3,8313 A 2 30 30,518 5,7003 A 3 32 31,591 6,7733 B 36 4 28 28,324 3,5063 B 5 30 27,989 3,1713 B 6 30 31,493 6,6753 C 36 7 30 31,563 6,7453 C 8 31 33,729 8,9113 C 9 33 33,489 8,6713 D 36 10 32 34,861 10,0433 D 11 32 30,266 5,4483 D 12 33 33,164 8,3463 E 36.5 13 29 30,409 5,591

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Segment Core Depth Gross Gross Static Net StaticCore Core Length Below Scan Rate Count Count

Number Segment (inches) Surface (ft) (kcpm) (CPm) (cpm)3 E 14 30 29,753 4,9353 E 15.5 30 27,861 3,0434 A 36 1 29 30,346 5,5284 A 2 30 30,284 5,4664 A 3 30 29,823 5,0054 B 36 4 28 29,028 4,2104 B 5 29 30,760 5,9424 B 6 31 31,312 6,494

4 C 36 7 30 32,519 7,7014 C 8 31 33,261 8,4434 C 9 36 35,595 10,7774 D 36 10 31 31,971 7,1534 D 11 32 31,410 6,592.4 D 12 33 33,923 9,1054 E 36 13 30 31,829 7,0114 E 14 31 32,203 7,3854 E 15 30 33,622 8,8045 A 36 1 33 31,978 7,1605 A 2 34 33,586 8,7685 A 3 34 35,897 11,0795 B 36 4 28 28,827 4,0095 B 5 30 29,466 4,6485 B 6 30 30,891 6,0735 C 36 7 34 33,129 8,3115 C 8 33 34,061 9,2435 C 9 34 37,619 12,8015 D 36 10 29 30,573 5,7555 D 11 29 29,726 4,9085 D 12 29 31,351 6,5335 E 12 13 26 28,972 4,1546 A 36 1 27 30,393 5,5756 A 2 30 30,841 6,0236 A 3 30 30,230 5,412

6 B 36 4 27 27,692 2,8746 B 5 28 28,698 3,880

6 B 6 28 27,744 2,9266 C 36 7 30 33,823 9,0056 C 8 31 33,960 9,142

6 C 9 33 36,006 11,1886 D 36 10 27 28,408 3,5906 D 11 30 33,225 8,407

6 D 12 32 32,044 7,226

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Number Segment (inches) Surface (ft) (kcpm) (cPm) m6 E 36 13 30 30,871 6,0536 E 14 30 31,388 6,5706 E 15 30 31,982 7,1647 A 36 1 32 32,525 7,7077 A 2 36 36,468 11,6507 A 3 35 35,298 10,4807 B 36 4 28 31,506 6,6887 B 5 30 31,995 7,1777 B 6 30 29,488 4,6707 C 36 7 34 35,343 10,5257 C 8 34 36,084 11,2667 C 9 36 38,586 13,7687 D 36 10 30 30,231 5,4137 D 11 30 52,118 7,3007 D 12 32 32,299 7,4817 E 36 13 32 31,489 6,6717 E 14 32 32,974 8,1567 E 15 32 32,581 7,7638 A 36 1 28 31,625 6,8078 A 2 30 33,213 8,3958 A 3 33 32,523 7,7058 B 36 4 29 30,301 5,4838 B 5 29 28,753 3,9358 B 6 30 30,450 5,6328 C 36 7 32 34,514 9,6968 C 8 35 34,495 9,6778 C 9 36 36,040 11,2228 D 36 10 31 32,794 7,9768 D 11 33 32,516 7,6988 D 12 33 32,784 7,9668 E 36 13 27 29,413 4,5958 E 14 27 28,527 3,7098 E 15 28 26,358 1,5409 A 36 1 30 31,817 6,9999 A 2 30 35,119 10,3019 A 3 32 33,954 9,1369 B 36 4 29 30,365 5,5479 B 5 29 28,540 3,7229 B 6 29 29,948 5,1309 C 36 7 29 35,921 11,1039 C 8 34 36,611 11,7939 C 9 37 38,891 14,073

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Number Segment (inches) Surface (fO (kepm) (cpm (pm)9 D 36 10 28 32,058 7,2409 D 11 30 31,158 6,3409 D 12 33 33,897 9,0799 E 36 13 28 32,493 7,6759 E 14 30 31,680 6,8629 E 15 32 31,931 7,113

Count: 131 131 131Average: 31 31,904 7,086Std. Dev.: 2.3 2,688 2,688

_ Minimum: 26 20,117 -4,701Maximum: 37 38,891 14,073

_Median: 30 31,971 7,153'Net Static Count values (cpm) are equal to the Gross Static Count minus a background value of 24,818cpm, the average of 5 consecutive 1-minute counts performed with the detector on top of the table used toscan the cores, prior to scan activities.

A composite sample representing each core segmentwas then prepared by combining each set ofthree 1-foot increments in a bucket and breaking up the cores. The final segment of core may beless than or greater than 3 feet depending on the point at which virgin material was encountered.A sample (usually between 500 and 800 grams) was taken from each composite and forwardedto Outreach for analysis of Th-232 activity concentration. Analytical results are provided belowin Table 3. Analytical data reports are contained in Attachment C.

Table 3- Systematic Soil Core Composite Sample ResultsSegment Composite Th-232 Std. MDC

Core Core Length Sample Core (pCi/g) Error (pCi/g)Number Segment (in.) No. Depth (ft) (pCi/g)

1 A 36 K-1065 1 21.7 1.10 0.7781 B 36 K-1066 4 20.7 1.09 0.6231 C 36 K-1067 7 25.8 2.21 0.7391 D 48 K-1068 10 26.7 1.19 0.5222 A 36 K-1069 1 24.2 1.15 0.6472 B 36 K-1070 4 23.5 0.989 0.5182 C 36 K-1071 7 22.5 1.06 0.6312 D 36 K-1072 10 21.0 1.37 0.8412 E 36 K-1073 13 15.7 0.866 0.6433 A 36 K-1074 1 19.7 1.16 0.6803 B 36 K-1075 4 20.5 1.05 0.4633 C 36 K-1076 7 27.8 1.13 0.5413 D 36 K-1077 10 25.2 1.28 0.7013 E 36.5 K-1078 13 26.5 1.14 0.5394 A 36 K-1079 1 14.8 1.11 0.7504 B 36 K-1080 4 26.1 1.40 0.778

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Segment Composite Th-232 Std. MDCCore Core Length Sample Core (pCi/g) Error (pCi/g)

Number Segment (in.) No. Depth (ft) (pCi/g)4 C 36 K-1081 7 20.5 1.95 0.878it D 36 K-1082 10 32.8 2.20 0.862it E 36 K-1083 13 28.2 1.23 0.5455 A 36 K-1084 1 26.5 1.30 0.665

B 36 K-1085 4 23.7 1.29 0.863C 36 K-1086 7 20.4 1.11 0.747D 36 K-1087 10 25.6 1.05 0.569E 12 K-1088 13 21.6 1.24 0.933

6 A 36 K-1089 1 21.3 1.21 1.026 B 36 K-1090 4 17.9 1.54 1.116 C 36 K-1091 7 20.1 1.26 0.7006 D 36 K-1092 10 25.0 1.80 0.7406 E 36 K-1093 13 23.6 2.09 0.8257A 36 K-1094 1 24.3 1.31 0.7527 B 36 K-1095 4 21.5 1.33 0.6437C 36 K-1096 7 27.9 1.61 0.7767 D 36 K-1097 10 24.9 2.36 0.959E 36 K-1098 13 23.9 1.41 0.7118 A 36 K-1099 1 20.4 0.964 0.5928 B 36 K- 100 4 18.7 0.982 0.7438 C 36 K-1101 7 24.1 2.27 0.9148 D 36 K-1102 10 25.5 1.46 0.6538 E 36 K-1103 13 18.2 0.851 0.6859 A 36 K-1104 1 18.7 0.778 0.7319 B 36 K-1105 4 16.6 1.40 0.9089 C 36 K-1106 7 26.2 1.38 0.6549 D 36 K-1107 10 28.1 1.32 1.209 E 36 K-1 108 13 22.7 1.14 0.537

= Count: 44= Average: 23.0

Std. Dev.: 3.75_ Minimum: 14.8

Maximum: 32.8_ Median: 23.6

The gross and net Th-232 activity concentrations for 43 of the 44 systematic composite sampleswere below the BCM surrogate value of 31.1 pCi/g net Th-232 activity concentration (DCCL).The gross and net Th-232 activity concentrations for Sample K-1082 (Soil Core No. 4, SegmentD - 32.8 pCi/g gross/31.7 pCi/g net) slightly exceeded the net DCCL value. The followingfactors were considered in the evaluation of the sample result:

* The onsite cave count result (25.4 pCi/g) for Sample K-1082 was considerably lower thanthe laboratory result (32.8 pCi/g).

QAP4OWC W072'FS1 Rep.l\Votme M\Stvey Vit FSSB 007SSB 007 Tadx R Revision 03/22/06

e The core scan data for Core No.4, Segment D did not indicate activity significantlygreater than the average of the core segments (see Table 4 below).

* Sample K-1082 represents about a tenth of the total volume of the Core No. 4, SegmentD composite.

Table 4 - Soil Core Segment Gross Gamma Survey Results - Core No. 4, Segment DSegment Core Depth Gross Gross Static Net Static

Core Core Length Below Scan Rate Count CountNumber Segment (inches) Surface (ft) (kcpm) (cpm) PML

4 D 36 10 31 31,971 7,1534 D 11 32 31,410 6,5924 D 12 33 33,923 9,105

Average: 31 31,904 7,086Results of all 131 Std. Dev.: 2.3 2,688 2,6881-foot segments: Minimum: 26 20,117 -4,701

Maximum: 37 38,891 14,073= Median: 30 31,971 7,153

To further evaluate the activity concentration of the core sample, the remaining core compositewas mixed again and nine additional samples were prepared and forwarded to Outreach foranalysis. The results of the original and additional samples of Core No. 4, Segment D arepresented below in Table 5.

Table 5 - Soil Core No.4, Segment D Composite Sample ResultsSample Th-232 (pCilg) Std. Error (pCi/g) MDC (pCi/g)K-1346 24.0 1.18 0.446K-1347 25.3 1.18 0.995K-1348 22.4 0.946 0.691K-1349 23.8 0.912 0.388K-1350 25.9 1.20 0.990K-1351 22.0 0.948 0.861K-1352 21.1 0.911 1.05K-1353 28.3 1.05 0.425K-1354 21.7 0.852 0.388K-1082 32.8 2.20 0.862

Average: 24.7Std. 9ev.: 3.59Minimmurn: 21.1Maximum: 32.8MedWan: 23.9

Including the original analysis result of Sample K-1082, the average Th-232 activityconcentration for Core No. 4, Segment D is 24.7 pCi/g. The average of the 10 samples was usedto represent Core No. 4, Segment D in the statistical analysis of the survey unit. The final soilactivity concentration statistics for Survey Unit Kaiser-FSSB-007 are presented below in Table6:

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Table 6 - Final Survey Unit Th-232 Activity ConcentrationTh-232 Activity Concentration Statistic Th-232 (pCi/g)

Average: 22.8Std. Dev.: 3.45Minimum: 14.8Maximum: 28.2

Median: 23.6

The standard deviation of the 44 composite samples was 3.45, which fell below the estimatedstandard deviation of 4.4 used to calculate the minimum number of samples required in thedecommissioning plan.

2.3 )Vilcoxon Rank Sum (WRS) Testing

The analytical results for the systematic soil core composite samples were evaluated using theprocedure contained in Appendix C, Volume I of this Final Status Survey Report (WilcoxonRan}; Sum Test). The evaluation showed that the survey unit core sample results meet the DPstatistical criterion based on the first statistical test as described below.

If the difference (27.5 pCi/g) between the maximum survey unit soil sample activityconcentration (28.2 pCilg) and the minimum reference area soil sample activity concentration(0.70 pCi/g) is less than DCCL (31.1 pCi/g), then the survey unit meets the release criterion.Table 7 presents a summary of the data used to complete the statistical evaluation of the surveyunit.

Table 7 - Reference Group and Survey Unit Sample ResultsReference Th-232 Survey Unit Th-232

Group Sample ID (pCi/g) Group Sample ID 00/g )RI 9 0.86 St K-1065 21.7R2 29 0.90 S2 K-1066 20.7R3 35 1.07 S3 K-1067 25.8R4 49 0.99 S4 K-1068 26.7R5 54 1.24 S5 K-1069 24.2R6 77 0.80 S6 K-1070 23.5R7 78 1.04 S7 K-1071 22.5R8 87 0.98 S8 K-1072 21.0R9 134 0.75 S9 K-1073 15.7R10 141 0.97 Slo K-1074 19.7R1 150 1.50 Sli K-1075 20.5R12 155 1.04 S12 K-1076 27.8R13 160 1.20 S13 K-1077 25.2R14 168 1.30 S14 K-1078 26.5R15 1_ 174 0.78 S15 K-1079 14.8R16 188 1.25 S16 K-1080 26.1

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Reference Th-232 Survey Unit Th-232Group Sample ID (pCi/g) Group Sample ID (pCi/g)

R17 203 1.43 S17 K-1081 20.5R18 215 1.13 S18 K-1082* 24.7R19 228 1.62 S19 K-1083 28.2R20 237 0.70 S20 K-1084 26.5R21 241 1.49 S21 K-1085 23.7R22 244 1.50 S22 K-1086 20.4R23 247 1.33 S23 K-1087 25.6R24 250 1.18 S24 K-1088 21.6R25 251 1.32 S25 K-1089 21.3R26 254 1.16 S26 K-1090 17.9R27 257 1.31 S27 K-1091 20.1R28 279 1.03 S28 K-1092 25.0R29 292 0.93 S29 K-1093 23.6R30 304 0.99 S30 K-1094 24.3R31 306 1.41 S31 K-1095 21.5R32 314 1.16 S32 K-1096 27.9R33 322 1.38 S33 K-1097 24.9R34 323 0.87 S34 K-1098 23.9R35 332 0.95 S35 K-1099 20.4R36 334 0.82 S36 K-11O0 18.7R37 336 1.36 S37 K-i 101 24.1R38 340 1.10 S38 K-1 102 25.5R39 347 0.90 S39 K-1 103 18.2R40 348 0.87 S40 K-1 104 18.7R41 356 1.45 S41 K-1105 16.6R42 364 1.31 S42 K-1106 26.2R43 367 1.02 S43 K-1 107 28.1R44 380 1.20 S44 K-1108 22.7

Average: 1.13 Average: 22.8Std. Dev.: 0.24 Std. Dev.: 3.45Minimum: 0.70 Minimum: 14.8Maximum: 1.62 Maximum: 28.2Median: 1.12 Median: 23.6

*K.1082 - Is the average of 10 samples of the composite for Core No. 4, Segment D.

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Survey Unit Kaiser-FSSB-007 which consists of a unit of BCM placed in an excavation resultingfrom the removal of radiologically-affected soil from the Retention Pond area, is considered aClass 1 survey unit with an approximate base surface area of 1,381 m2 . It is located on the eastside of the pond parcel within the excavation bottom associated with Survey Unit Kaiser-FSS-018 (Figure 3). The survey unit is bordered by excavation backfill Survey Units Kaiser-FSSB-006 and Kaiser-FSSB-010 to the north, excavation backfill Survey Unit Kaiser-FSSB-008 to thesouth, excavation backfill Survey Unit Kaiser-FSSB-005 to the east, and excavation backfillSurvey Units Kaiser-FSSB-010 and Kaiser-FSSB-012 to the west.

A total of eight 2-foot layers (lifts) of BCM material was placed in Survey Unit Kaiser-FSSB-007. It should be noted that BCM was placed in excavation backfill Survey Units Kaiser-FSSB-007 and Kaiser-FSSB-008 simultaneously.

The acceptance criterion for BCM survey units at the Tulsa facility is the DCCL of 31.1 pCi/gnet Th-232 activity concentration. The final status survey consisted of a gross gamma scan ofeach -placed 2-foot lift of BCM and systematic soil core sampling upon completion of the BCMunit. The results of the final status survey activities were as follows:

* The 100 percent coverage gamma scan of each lift (final as-left condition) did notindicate the presence of small areas (1 in2) of elevated activity (greater than the DCCLfor the site).

* The gross and net Th-232 activity concentrations for 43 of the 44 systematic compositesamples were below the BCM surrogate value of 31.1 pCi/g net Th-232 activityconcentration (DCCL). The gross and net Th-232 activity concentrations for Sample K-1082 (Soil Core No. 4, Segment D - 32.8 pCi/g gross/31.7 pCi/g net) slightly exceededthe net DCCL value. The average of all of the core composite samples for Core No. 4Segment D (including the original result) was used to represent the segment and the result(24.7 pCi/g) was below the surrogate value of 3 1.1 pCi/g of Th-232.

* The analytical results meet the DP statistical criterion based on the first statisticalevaluation of the data (WRS Test procedure).


Q.V4W .V0Z Rqfl.m MSa it FSSB 007\S B 007Tatdo 12 Revision 03/22/06











Q:\P4000\PA4072\FSS Repots\Volume IU\Survey Unit FSSB 007\AttachnIent A\Atacbmcnt A toc doc

Abchment A, Figure AGros Gamma Background and Shy in§ Svbeo Reslts

Subey Uit Kaiser FSSBIo71 LifR No, 1

CPM Nal #7

-1 1O 00 CO00 010-5000

10 00 003I I=5 G3I3 GCIGi0000C85C00C

800C30

75000

70000IP5 Z 0 C

X5 3 3 O O

-&-55000 C

50000 C

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Aflchment A, Figure Ak2Grog Gamma Baigrovod aOd ShIog Suney ResWlts

SWeyUntKaiserMFSSIBO1* LfR No.2

CPM Nal # 7

1350

-1 _-C3CC

-1 1' 0000O C

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Atachmet A, Fglre A3 CPM Nal # 7

Gross Gamma Background and Sunning Suqey ResultsSudey Vnit Kaiser FSS V01* LiR No, 3

Backgrounds are 1 minute readings. Af.IT 2

Scanning readings are recorded at 2 second intervals.CCs

b\ \l

Atachment A, Figure A4Gross Gamma Background and Scanning SuNey Results

SuNey Unit Kaiser-FSSB007 -Lilt No. 4

CPM Nal # 7130000

125000

1,20000

115000

110000

1 050001 00000

95000

90000

85000

80000

75000

70000

65000

6000055000

50000

45000


Scanning readings are recorded at 2 second intervals.60991

c57-

CPM Nal # 7

>\

'Mnxl

Alachment A, Figure A-5Gross Gamma Background and Scanning Surey Results

Surey Unit Kaiser-FSSB007 LitR No. 5

94ooo

O0O0O

a84o0o

79000

7Q40o

3i9000

e;4QOO

59003o

E5440

4*04o0

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O MS ~I\--Atachment A, Figulre A*6

Gross Gamma Bkgro d and She ing Subey ResvltsSubey Unit KaiwrFSSB001 LiR No. 6

CPM NIal #711Q5000

1 1 0000

1 05000

1 00000

95000

90000

85000

8000075000

7Q0000

Q5000

C3QQQQ

55000

50000

45000

a40000



4llachmept A, FigreA 41Gros Gamma Backgroud ad id Sluey Results

SuNey ULPil Kaiser-FSSB0 1 Lift No. 1

CPM Nal # 71 250001 20000

l 1 , 1 -15000

1 1 0000

1 05000

100000

95000

90000

85000

8000075000

70000

E5oooEfOOOO


-poX


O " �-,Alachment A, Figure A8

Gross Gamma Background and Scanning SuNey ResultsSuqey Unit Kaiser*FSSB*007 LiR No. 8

CPM Nal # 7-1050000100000

89-5000

800000

7E5000

70000

.150000

C30000

I QQO

In OsQOQO

1%,O

Olackgrounds are 1 minute readings.

CYX

qw°°

Ss2ls.


(0

N(0c"I

Ll

(DNN(N(0D(N

LUI

N0 I- - - - - - - - -

F

N 409353

N 409253

L . - - - - - - - - - - - - - - - - - - - - - -i

L

h N = 9L = 13.3mh = 11.5mAREA = 1,381m 2

SCALE - FEET030 30

9 0SCALE - METERS

9

LSYSTEMATIC SOIL CORE SAMPLING LOCATIONBASED ON RANDOM START POINT ANDAN EQUAL DISTANT TRIANGULAR GRID




PREPARED FOR

KAISER ALUMINUM & CHEMICAL CORPORATIONTULSA, OKLAHOMA

0 RANDOM START POINT

APPROVE~ !5- 3.- o 14

CHECKEbk; t--':, <3 - oeDRAWN DEB 01/30/06

DRAWING NUMBER

PA4072027AI Penn E&R

Environmenbtl & Remediation, Inc.

, to--




Q:'P4000\FA4072\FSS Reports\Voluffe rSurvey Unit FSSB 00O7Attachment B -Soil Survey Unit Worksheets\Attachment B toe doc




1. Soil Survey Unit: Kaiser-FSSB-007


3. Net Th-232 Acceptance Criteria (pCi/g): 31.1

4. Dimensions (m): Approximately 30 meters x 46 meters; Area, A (m2): 1.381

5. Estimatc of Gross Gamma Scan Background Readings (cpm)




Grid Node Length) for a standard 2,000 m2 Class I survey unit are:

* Gross Ganna Scan MDC (pCi/g): 5.7

* Minimum Number of Samples (N): 9 Triangular Grid Node Length (L): 16.0 in

7. If the area of the Survey Unit is less than 2,000 n 2, recalculate the corresponding Triangular Grid Node

Length (LI) for the Survey Unit Area (A), using the following formula: L, = (A/(0.866 x 9))112: 13.3 m

8. If N is greater than 9 and the A is other than 2,000 m2, recalculate the corresponding Triangular Grid Node

Length (LI) using the following formula Li = (A/(0.866 x N))112: N/A

9: If A is greater than 2,000 rn2 and N is equal to 9, recalculate the minimum number of samples (NI)

corresponding to a Triangular Grid Node Length (L) of 16 m using the following formula N1 = A / (0.866 x

152 ), N,: N/A


formula: h = ((L2 - (LU2) 2f: 11.5 M.

Q:nP4OOO\'A4072\FSS Rcports\Volme IlWSurvey Unit FSSB 007\Attachnent B - Soil Survey Unit WorksheetsASoil Survey Unit Worksheet No. Idoc

1 Soil Survey Unit Worksheet No. 2Random Number Generator for Start Point




RANDOM START POINTx axis (Meters) y axis (Meters)


Northa

(0,0) x axis

O:-J'40OOPA40Or2\FSS ReportsVolurne 1I~RSurvey Unit FSSB 007VWtachmrent B - Soil Survey Unit Work~sheets\Sod Survey Unit Worksheet No. 2

ATTACHMENT C


Outreacht iiboratory

Nth AspenAoken AMow., OK 74012

(918) 251 -2515FAX (918) 251-0008

November 15, 2005 R4 ob 6/. F;O,-


Project: Kaiser Thorium Remediation PA-40004072OUTREACH LAB ID: 20050810

Dear Mr. Weyant:

Please find enclosed the amended analytical report for the above mentioned projectoriginally reported on 11/7/05. The following eighteen samples were reanalyzed uponyour request: #4 - #7, #9i #11 - #14, #18 - #20, #23, #28, #31, #32, #35, and #44.Normally we would charge for reanalysis if the results are not significantly different.Although, they were not, we did not charge you based on our previous conversation.


* Your samples will be returned as requested.


Laboratory Di

%1; ACCa,7

ODEQ ID #9517DEQ LIC. #27522-01 c -' £

CERT. ID #OK001



2005081011/15/05

10/7/051 of 11

Outreach-tborator(

k1,1 I; I North AspenKL.kroken Arrow, OK 74)12

(918) 251-2515FAX (918) 251-0008 Analytical Report

Result UnitsMethod DL Prep Analysis AnalystDate Date


Th-232

Percent Moisture

20050810-01K-1 06510/4/05 9:15:00 AMSoil

Radiochemical AnalysesHASL300 21.7+/- 1.10 pCi/g

Inorganics AnalysesASTM D2216-92 . 16.1 %

0.778 10/18/05 SD

10/8/05 10/10105 RT

Lab ID:Client ID:Date Sampled:Matrix: -

20050810-02K-106610/4/05 9:43:00 AMSoil



Th-232

4I,. |I PercentMoistvre

0.623 10/18/05 SD

10/8/05 10/10/05 RT.

Lab ID:Client ID:

* Date Sampled:Matrix:

Th-232

Percent Moisture

20050810-03IC-106710/4/05 9:52:00 AMIoil


Inorganics Analyses.ASTMD2216-92 20.6 %

0.739 10/18/05 SD

10/8/05 10/10/05 RT


Thorium 232

Percent Moistwe

20050810-041-106810/4/05 10:01:00 AMSoil

Radiochemical AnalysesHASL 300 26.7+/- 1.19 pCi/g.


0.522 11/14/05 SD

10/10/05 RT10/8/05

Lab ID:Client ID:

K.i~ Date Sampled:Matrix:

20050810-05K-106910/4/05 10:06:00 AMSoil

Radiochemical AnalysesBDL = Below Dcetction Limit



2005081011/15/05

10/71052 of 11

Outreadc-- boratoryi North Aspen

Broken Arrow. OK 74012(918) 251-2515FAX (918) 251-0008 Analytical Report


AnalysisDate

Analyst

Thorium 232

Percent Moistare

HASL 300 24.2 +/- 1.15 pCi/gInorganics Analyses

ASTM D2216-92 16.8 %

0.647 11/14/05 SD

10/8/05 10/10/05 RT

Lab ID:Client ID:Date Sampled!:Matrix:

Thorium 232

Percent Moisture

20050810-06K-107010/4/05 10:15:00 AMSoil



0.518 11/14/05 . SD

10/8/05 10/10/05 RT


Thorium 232

Percent Moisture

20050810-07-I-1071

1014/05 10:22:00 AMSoil

Radiochemical Analyses,HASL 300 22.5 +1- 1.06 pCi/g


0.631 11/14/05 SD

10/8/05 10/1 0105 RT


Th-232

Percent Moisture

20050810-08K}-107210/4/05 10:29:00 AMSoil

R.HASL 300

ASTM D2216-92

adiochemical Analyses21.0 +/- 1.37 pCi/g


0.841 10/18/05 SD

10/8/05 10110/05 RT


Thorium 232

iiL; 2ercent Moistute

2D050810-09K.-107310/4/05 10:37:00 AMSDil



0.643 11/14/05 SD

10/8/05 10/10/05 RT

BDL= Below De~cction Limit



2005081011/15/05

1on/7o3 of II

Outreach.xboratory

. 2) - is No.th AspenBrokenArow, OK7401Z(918) 251-2515FAX (918) 251-0008 Analytical Report




20050810-10K-107410/4/05 10:46:00 AMSoil



Eh-232

Percent Moisture

0.680 10/18/05 SD

10/8/05 10/10/05 RT

Lab ID:* Client ID:


Thorium 232

Y, Percent Moisture

20050810-111K-107510/4/05 10:53:00 AMSoil



0.463 11114/05 SD

10/8/05 10/10/05 RT

' Lab ID:'Client ID:* Date Sampled:Matrix:

Thorium 232

'Percent Moisture

20050810-12}i-107610/4/05 11:00:00 AMSoil

Radiochemical AnalysesHLASL 300 27.8+/- 1.13 pCi/g


0.541 11/14/05 SD

10/8/05 10/10/05 RT

* Lab ID:Client ID:.Date Sampled:Matrix:

* Thorium 232

Percent Moisture

20050810-13K-10771014/05 11:07:00 AMSoil



0.701 11/14/05 SD

10/8/05 10110/05 RT

Lab ID:7lient ID:


* 20050810-14K-107810C/4/05 11:14:00 AMSoil

Radiochemical AnalysesBDL = Below Detcction Limit

Client:Client Project:Lab NumberDate Reported:Date Received:Page Number:


2005081011/15/OS

10onlos

4 of 11Outreachtboratory

_i, . I North Aspen4X Droken Arrow, OK 74012

(918) 251-2515FAX (918) 251-0008 Analytical Report


AnalysisDate

Analyst

* Thorium, 232

Percent Moisture

HASL 300 26.5 +/- 1.14 pCilgInorganics Analyses

ASTM D2216-92 22.9 %

0.539 11/14/05 SD

10/8/05 10/10/05 RT

Lab ID:Client ID:Date Sampled:

.Matrix:

Th-232

Percent Moisture

20050810-15K-107910/4/05 11:21:00 AMSoil

Radiochemuical AnalysesHASL 300 14.8 +/- 1.11 pCi/g


0.750 10/19/05 SD

10/8/05 10/10105 RT


20050810-16IC-108010/4/05 11:27:00 AMSoil



92 16.8 %

0.778 10/24/05 SD


Lab ID:Client ID:bate Sampled:Matrix:

Thb-232

Percent Moisture

20050810-17I -1081

10/4/05 11:34:00 AMSoil



, 0.878 10124/05 SD

10/8/05 10/10105 RT


Thorium 232

hi Percent Moisture

20050810-18K:-108210/4/05 11:40:00 AMSrDil



0.862 11/10/05 SD

10/8/05 10110/05 RT

BDL= Below Delection Limit

Client: .Client Project:Lab Number:Date Reported:Date Received:Page Number:


2005081011/15/05

10/7/055 of 11

OutreachiboratoryNorth Aspen

Broken Arrow. OK 74012(918) 251-2515FAX (918) 251 -0008 Analytical Report




20050810-19K-108310/4/05 11:50:00 AMSoil

Radiochemical Analyses28.2 +/- 1.23 pCi/gThorium 232

Percent Moisture

HASL 300 0.545 11/14/05 SDInorganics Analyses

ASTM D2216-92 22.2 % 10/8/05 10/10/05 RT


1:0050810-20IC-108410/4/05 1:10:00 PMWoil



Thorium 232

1.e ,4 Percent Moisture

0.665 11/14/05 SD

10/8/05 10/10O5 RT

Lab ID:Client ID:

*Date Sampled:Matrix:

Th-232

Percent Moistwe

20050810-21I:-108510/4/05 1:17:00 PMSoil



0.863 10/24/05 SD

10/8/05 10/10/05 RT


20050810-22K-108610/4/05 1:26:00 PMSoil

Radiochemical AnalysesHASL 300 20.4 +t- 1.11 pCitg


Th-232

Percent Moisture

0.747 10/24/05 SD

10/8/05 10/10/05 RT

Lab ID:-lient ID:

' Date Sampled:

Matrix:

20050810-23K-10871014105 1:30:00 PMSoil

Radiochemical AnalysesBDL= Bclow Defection Limit



2005081011/15/05

10/7/056of 11

Outreach- tIboratony

i 5 North AspenBrcoken Arrow. OK 74)12(918) 251-2515FAX (918) 251-0008 Analytical Report


AnalysisDate

Analyst

Thorium 232

Percent Moisture

HASL 300

ASTM D2216-92


18.6 %

0.569 11/14/05 SD

10/8/05 10/10/05 RT

Lab ID:Client ID:Date Samplefd:Matrix:

Th-232

Percent Moisture

20050810-24K-108810/4105 1:40:00 PMSoil



0.933 10t24/05 SD

10/8/05 10/10/05 RT


Th-232

Percent Moisture

20050810-25KC-108910/4/05 1:45:00 PMsoil


ASTM D2216-!

1.02 10/24/05 SD


16.0 % 10/8/05 10/10/05 RT


Th-232

Percent Moisture

20050810-26XC-109010/4/05 1:50:00 PMSoil



* 1.11 10/24/05 SD

10/8/05 10/10/05 RT


Th-232

Percent Moisture

20050810-271:-1091

10/4/05 1:55:00 PMSoil



0.700 10/25/05 SD

10/8/05 10/10/05 RT

BDL -Below Defection Limit



2005081011115105

10/7/057of 11

Outreachbmoratotiy

I North AspenBroken Arrow, OK 74)12(918) 251-2515FAX (918) 251-0008 Analytical Report




20050810-28K-109210/4/05 2:00:00 PMSoil

Radiochemical Analyses25.0 +/- 1.80 pCi/gThorium 232 HASL 300 0.740 11/10/05 SD



Th-232

Percent Moistvre

20050810-29K-109310/4/05 2:00:00 PMSoil


ASTM D2216-!

0.825 10/25/05 SD


20.6 % 10/8/05 10/10/05 RT


Th-232

Percent Moisture

20050810-30IC-109410/4/05 2:05:00 PMSoil

Radiochemical AnalysesHASL 300 .24.3 +/- 1.31 pCilg


0.752 10/25/05 SD

10/8/05 10/10/05 RT

-Lab ID:Client ID:Date Sampled:Matrix:

20050810-31}K-109510/4/05 2:10:00 PMSoil



Thorium 232

Percent Moisture

0.643 11110/05 SD

10/8/05 10/10/05 RT

Lab ID:.lient ID:

'LvJ Date Sampled:Matrix:

20050810-32K-109610/4/05 2:15:00 PMSoil

Radiochiemical AnalysesBDL = Below Dctcction Limit

Client:Client Project:Lab Number.Date Reported:Date Received:Page Number:


2005081011/1510510/7/OS8 of 11

OutreachIboratory

<i. 1 North AspenBroken Arrow. OK 74012(918) 251-2515FAX (918) 251-0008 Analytical Report


AnalysisDate

Analyst

Thorium 232

Percent Moisture

HASL 300 27.9 +/- 1.61 pCi/gInorganics Analyses

ASTM D2216-92 20.5 %

0.776 11/10/05 SD

10/8/05 10/10/05 RT


.Th-232

Percent Moisture

20050810-33K-109710/4/05 2:30:00 PMSoil



0.959 10/25/05 SD

10/8/05 10/10/05 RT


'~ILJJ' Matrix:

*Th-232

Percent Moisture

20050810-34K-1098 -

1014/05 2:35:00 PM,Soil

Radiochemical AnalysesHASL300 23.9+/-1.41 pCi/g


0.711 10/25/05 SD

1018/05 10110105 RT

Lab ID:Client ID,Date Sampled:

* Matrix:

Thorium 232

Percent Moisture

20050810-35K-10991014/05 3:22:00 PMSoil



0.592 11/14/05 SD

10/8/05 10/10/05 RT

* Lab ID:Client ID:Date Sampled:Matrix:

Th-232

Percent Moislure

20050810-36K-11001014105 3:32:00 PMSoil

Radiochemical Analyses18.7 +/- 0.982 pCifgHASL 300

ASTM D2216-!

0.743 10/25/05 SD

92

Inorganics Analyses15.9 % 10/8/05 10/10/05 RT

BDL = Below Dctection Limit


* Kaiser AluminumThorium Remediation

2005081011115105

10/7/059of 11

OutreachI boratory

I North AspenBroken Arrow, OK 7401 2(918) 251-2515FAX (918) 251-0008 Analytical Report




Th-232

Percent Moisture

20050810-37K-1i10110/4/05 3:40:00 PMSoil

Radiochemical AnalysesHASL 300 24.1 +/-2.27 pCi/g


0.914 10/25/05 SD

10/8/05 10/10/05 RT


Tli-232

20050810-38IC-110210/4/05 3:47:00 PMSoil




Th-232

Percent Moistute

20050810-39-i-1103

10/4/05 4:00:00 PMSoil


ASTM D2216-'

0.685 10/26/05 SD


19.2 % 10/8/05 10/10105 RT


Th-232

Percent Moisture

2005081040K-110410/4/05 4:20:00 PMSoil



0.731 10/26/05 SD

10/8/05 10/10/05 RT

Lab ID:L~ Client ID:


20050810-41K-110510/4/05 4:24:00 PMSoil

Radiochemical AnalyscsBDL = Below Detection Limit



2005081011/15/05

10/7/0510 of I1

Outreachb1oratory

mu SWi North AspenBroken Arrow, OK 740 22(918) 251-2515FAX (918) 25140008 Analytical Report


AnalysisDate

Analyst

Th-232 HASL 300 16.6 +/- 1.40 pCi/gInorganics Analyses

16.4 %

0.908 10/26/05 SD

Percent Moisture ASTM D2216-92 10/10/05 1011I/05 RT


2:0050810-42

IC-110610/4/05 4:11:00 PMsoil

Th-232 HASL 300Radiochemrical Analyses


92 18.9 %

0.654 10/26/05 SD

Percent Moisture ASTM D2216-S 10/10/05 10/11/05 RT


L.ji Matrix:

Th-232

Percent Moisture

2:0050810-43IC-110710/4/05 4:16:00 PMSoil



1.20 10/26/05 SD

10/10/05 10/11/05 RT


Thorium 232

Percent Moisture

2.0050810-44IC-1 108

10/4/05 4:22:00 PMSoil



0.537 11/14/05 SD

10/10/05 10/11/05 RT

BDL= Below DMtection Limit

C JUTREACHLABORATORY Results To:

ettt -Y311 North AsDen .Broken Arrow, OK 74012 CM 7- 47q -Phone: (918) 251-2515Fax: (918) 251-0008 11

CHAIN 6. MUTODYCompany \A A. AL21,M '~

Nameb M It

Address~7U\nw '

le

1:iiI lo:

comoarnv A4MSIC / tz- tB----r- z. -- r*� M �

NarreL) k .9

Address 1ll11f E

Ig

q It-1~ %S7 r-

city~b A . StatenK jip__..t Wy.

PO# A 46-7Z 2 CONTAINER PRESERVATIVEC SIZE .*

PROJECT# L+%~'7'i'f 0 1. HN0 3 pMt< j.EN 2. Ice<4'C .

PROJECT NAME h T5v N PLASTIC 4 HCl pHd 5

(ADDITO AL HARGE MAY PP Y)A OR* ' 1t 2SO4 pHd 'J 2 ~ %

REOUE TURNAROUND TIME 5. NSOHSp111(A MN D U 4 ' N I

SAMPL. R) REMARKS

% Ors ;J(I.E. FILTERED, UNFILTERED,S SpMP" A E nME MATRKX Q GRAB, COMPOSITE)

__2- .- I

A- eI-

8.:1g r le -__1 _1Hz*-K/~\ <__ RRXX. /

.II' .. 1 % t_ .___ RXzRT=

4.u_\2 ' __\o~q___ yzN

B.- .lME1,Y __ECEIVED B____________

|RE=LINQUISHED BY |C1 ATE -TIME RE=CEiVE:D BY .. DATF -TIMF

My signature on this chain of custody form InIalites that I amn authorized by the above company to release samples for enalysl. The company agrees to pay the enti babanc upot receiptof sample data and It Is understood and agreI$ that aty balance carned over thirty (30) days Is subject to a 1.5% per month (18% por annum) late charge. In the event od default the companybecomes legally Pable for any reasonable attomey andtor collection fees and an related coots necessary to remit the entire balance to Outreach Technologies. Inc. (Outreach Laboratory).

"I.Wf l I.- I Y

4-t t_

'4JUTREACH-LABORATORY

INCHAIN C. MUTODY.

I,--rit-


q

.. Results To:LOW,,b. '

IAI 12 799-'4Its67

Company " - / bh 7Name IAddressPh 'a hL R I a S

Clt:\J Sr ~A -tateZJZ '- zi 7 1 t-Phon.l t313. Fatx #1t-a U Al I7

Bill To:

Company Aa RŽI ir-Z P A fl

Name i.A-(X A

AddresS3 1l ¶ .* 'q I~ v, ,-CltyA.X~....State-!4...zip27 N I._ I

PO # K 0 A % -41 a? L c CONTAINER PRESERVATIVE _POET4 7C SIZE S6

PROJECT# N /~k ' WQ - t TOT0 1. HNO3 pH-d C 3PROJECT NAME N\'t 2L L Zf~" 2 . fe MCIp4 4

MEA OR S. N&SO pHd1REU ES7D T1URNAROUND T G s NTONpGLASS(ADDITIOA HARGES MAYALPPILY) N

SAMPLE M s . R REMARKS

' Sna IL .s (I.E. FILTERED, UNFILTERED,CtlT ' MPnE GRAB, COMPOSITE)

- I _ S =AMA rk;J j._I TX 6 xT

- -T

I

C, 2I Lk~-•"..

RELINQUISHED BY . . DATE .TIME - RECEIVED SBYAE . TM .My signature on this chain of custody form Indit that I am authorized by the above cOm'panvy to release sample. for analysis. The company agrees to pay the entore balance tiport receiptof sample data and RIls understood and agreed .Iany balance carrIed over thirty (30) days Is subject to a 1.5% per morth (I18% per annum) late charge. In Ithe event oi defalt fth companybecomes legally lable for any reasonable attorney andl/or collectson teest and oll related cogta necesealy to remfl the entire balance to Outreach Technologles. Inc (Outreach Latboratoe).-

~~~~~~~m T t@ -_ =.2Z

( JUTREACHLABORATORY

I -

CHAIN 6. CUSTODYt.E-

311 North AsbenBroken Arrow, OK 74012Phone: (918).251-2515Fax: (918) 251-0008

, ' Results To:

L4.zcA'

ot I1,4 -06o1)

Address _filV

r

z l 4I ~1 W.

Company -k ~& Axux'3 .9C2d-Name' Q Lb a,%4y&A

Bill To:

Name' pm AJ57AA jA A

City W- A State-- -l~pj 14 (1 q _Phone/Ž la&' 3 Q1 4 Fax #1 N -1 iMŽ -bL

PO# it'-A. _l.A C CONTAINER PRESERVATIVE

PROJECT# rb 0 1. HNO pHd 2 a-~Ak~Sn. N2.Ic.ACj

PROJECT NAME h'"-" T PLASTIC 3. HtiCpHd . _

R ESTED TURNAROUND TIME 2oA OR S. H2S0H pHd 1(ARE 5INAL CHARGES MAY APPLY) I GLASS. NO1,NE

SAsg eR REMARKS

| 4DATi!iR ^ TIME (I. || t.E. FILTERED, UNFILTERED,CLIE4SAMLE ATE IMEGRAB, COMPOSITE)10 SAMLEDh SAMPIED MATRIc.

h - 1 - w 14 W1 t fi . N /G '

. _- qq _ i-t -

A9E-r>>p TM ME(LECE VEDe "AE 7 Z1 rIfi fi

|My signature on this chanocuodfomnd ta tIm authorkzed by the above company to release samples for anayssis. The company agrnees to pay th entin balance tipon recelpt |beoe lrpegatylabt fr aisnyreastonabl attoe and/or collection fee and aitrelated cat nesar 10rmt te Inthr baac to Oureact Tchoompsn.Otec Lbntoy)

JUTREACH: CHAIN % DUSTOIY.LI

Results To: Company N&61QftL -. hla r! 3 4 * (. Bill To: -

LABORATORY [ I-- L' 6aName itIWNZ R. M~ (L CompanY, APA-A

n Address{ll 2. % 7 Namea

)K 74012 n 4 City- 41r StateJ ! 41 :I Address-Jn iMI| li. I.. -lb . t . . . . . . . .. .. t.A

314ia -!4 a.s pBroken Arrow, C

lPhone: (918)Fax: (918) 251-0008 I no /('4 i Fax# _ - I |It 1 4\IP. taie -p W

_ A_

PO CONTAINER PRESERVATIVE 3C: SIZE 1-

PROJECT# p 0 Si 1. HN03 Pfl A)kA~N 2. Ice c41C-

PROJECT NAME A. OR 4 N2S4plf_

REQ ESEDTURNAROUNDTIME 7 I a .t NsOH pHA16(ADD TION CHARGE MAY A PLY) N

E CSAMZ NR . q

\&gnatre s

CLIENT SAMIKE DATE WMECE SAMPLIED SAPIPU M X AUTFI

iz it \ XI X v. =- = Z. :

*R14

~4'.,,

i.. ,*C.-.,

. .

.-. ._/ =__ .st~ ..KS

REMARKS(i.E. FILTERED, UNFILTEF

GRAB, COMPOSITE)

(46. V nc-

1, = I /_/ Y If -

_ i == I

. - _

tED,

Ill I I i II

B DE_ ECM4IERECEIVED BY: D AT V

RELINQUISHED BY: _DATE__, _TIME.._......RECEIVED BY:__________

My'sIgnature on ts chain of custody Indlc hat I am authorized by the above companyto release samples for analysis. The company agrees to pay the entire balance pon receiptof sample data and It s understood and agreed that any balance carried over thirty (30) days is subject to a 1.5% per rnonth (18% per nnum) late charge. In the event od default t companybecomei legally liable for any reasonable attorney and/or Collection fees and an related coats necessary to remit the entire balance to Outreach Technologies. Inc. (Outreach Laboratory)_

SAMPLE Lb irt

Date Received: 10/7/05 10:35.25

SampleNumber

ClientSample ID

Lab Number:

Date'SampledMatrix

ContainerType

ContainerSize

20050810 . Due: 11/4105.

PreservationCustody SealSeal Intacf

20050810-01 A K-1065.Percent Moisture (LOD)


Soil 10/04/05 Plastic 16oz : None Yes Yes




20050810-03 A . K-1067Percent Moisture (LOD)



16oz

16oz

16oz

None

None Yes

Yes

Yes

Yes

Yes20050810-04 A K-1068Percent Moisture (LOD)







Soil 10/04/05

10/04/05

Plastic

Plastic

16 oz

16 oz

None Yes Yes

YesSoil None Yes




20050810-08 A K-1072. Percent Moisture (LOD)


Soil. 10/04/05 Plastic

16oz

16 oz

16 oz

None

None

Yes

Yes Yes

Yes

Yes

Yes

20050810-09 A K-1073Percent Moistuie (LOD)


Soil 10/04/05 Plastic. None Yes

20050810-10 A K-1074 Soil 10/04/05 Plastic 16 oz None Yes

Percent ht C(LOD)

Th-232 by purma Spec

Soil20050810-11 A K-1075Percent Moisture (LOD)


20050S10-12 A K-1076



10/04/05 *Plastic

Soil

Soil

10/04/05

10/04/05

Plastic

Plastic

16 oz

16 oi

16 oz

None Yes

Nnne Yes

Yes

Yes

Yes20050810-13 A K-1077



None Yes




10/04/05 Plastic

16 oz

16 oz

None

None

Yes Yes

Yes - Yes20050810-15 A K-1079Percent Moisture (LOD)


Soil









Soil 10/04/05 Plastic .

16 oz

16 oz.

16 oz

16oz

16oz

None

None

None

Yes

.Yes

Yes

Yes

Yes

Yes

Yes.

Yes


I h-232 by Gamma Spec

Soil 10/04/05 Plastic None

None

Yes

YesSoil20050810-20 A K-1084Percent Moisture (LOD)


10/04/05 Plastic

C20050810-21k K- 1O085

Percent M%.-.dre (LOD)









Soil

Soil

Soil

Soil

Soil

Soil

-. _i

10/04/05 - tic

10/04/05. Plastic

10/04/05 Plastic

10/04/05 Plastic

10/04/05 Plastic

101 Plastie

t~ ja/,a_,7

16 oz

16 oz

16 oz

16oz

16 oz

16 oz

None

Nbne

Yes

Yes

None Yes

Ye-

Yes

Yes

Yes

Yes

Yes.

None Yes

None

None

Yes

Yes

* 20050810-27 A K-1091Percent Moisture (LOD)


Soil 10/04/05 Plastic 16oz None Yes Yes





20050810-30 A K-1094rercen; 2itu e A LO)


Soil

Soil

Soil

* 10/04/05 Plastic

10/04/05 Plastic

10/04/05 Plastic

16 oz

16 oz

16 oz

None . Yes

None Yes

Yes

Yes

YesNone Yes

20050810-31 A .X-1095 Soil 10/04/05 Plastic 16 oz None Yes Yes

rTrcenh;3 b e (L.a ) .Th-232 by . a.maSpec

.MC

* Soil20050810-32 A K-1096Percent Moisture (LOD)





10/04105 Plastic 16 Oz. None Yes Yes

'Soil

Soil

Soil '

Soil

10/04/05 Plastic

10/04/05 Plastic

16 oznews



20050810-36 A K- 100Percent Moisture (LOD)


10/04/05 Plastic.

16oz

16 oz

16 oz

None Yes

None. Yes

Yes

Yes

Yes10/04/05 Plastic None Yes

20050810-37 A K-1 101Percent Moisture (LOD)






Soil

Soil

Soil

Soil

Soil

10/04/05 Plastic

10/04/05 Plastic

10/04/OS Plastic

10/04/05 Plastic

10/04/05 Plastic

16 oz

16oz

16oz

16 oz

16oz

None

None

Yes

* Yes


Th-232 b- Ga-mma .. Sp



None

None N

None

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Ce-:ZUUtlUS1U-4" ;K-1 1U6

Percent M; re (LOD)


'10/04/05 ;- ticSoil



20050810-44 A K-1 108Percent Moisture (LOD)Th-232 by Gamma Spec

Soil

Soil

10104105 Plastic

16 oz

16 oz

16 oz

None Yes Yea

Yes

Yes

None Yes

. 10/04/05 Plastic * None Yes

CONTAINEf INSP

# Coolers !

SAMPLE INSPECT

Custody Seals Broki

ECTION I

Custody Seals Broken - YIN Temperature Blue Ice/ Wet Ice Radiation Survey fixed removable

'ION

!n - Y/N Chain of Custody Recor 'IN Labels In TactA/N Radiation Survey Complete Y/N

Anomalies:

Inspected By:

QA or Designee Review:

Sample Custodian Review

DATE

:tDATE EI/ ZI

DATE 1 7-t 5

Project Notes:

Outreachboratory

KV~ken. w. OK740o December 13,2005(918) Z51-2515FAX (918) 251-0008


Project: Kaiser Thorium Remediation PA-40004072OUTREACH LAB ID: 20050987

Dear Mr. Weyant:

Please find enclosed the analytical report for your samples received in our laboratory onDecember 07, 2005 for the above captioned project. Ten soil samples were received ingood condition and analyzed by Gamma Spectroscopy without drying and grinding andPercent Moisture with an expedited 5-work day turn. Results were faxed early on12/13/05.



Thank you for choosing Outreach Laboratory and if you.have any questions, please callus at 918-251-2515.

Lboato

OD)EQ ID #9517V, DIQ LIC. #27522-01

CERT. ID #OK001


Kaiser Aluminum.Thoriuin Rernediation

2005098712113/05

12/7/05I of 3

(Outreachl5oratory .

,,lNoth Aspen2!iok en Arrow. OK 74012(918) 251-2515FAX (918) 251-0008

Analytical Report



Lab ID:* Client ID:


Thorium 232

:Percent Moisture

2(1050987-01K-134612/6/05 2:00:00 PMSoil

Radiochemical AnalysesHASL300 24.0+/- 1.18 pCig


0.446 12/8/05 SD

12f7/05 12/8/05 RT


20050987-02K-134712/6/05 2:05:00 PMSoil

Thorium 232

tXV Percent Moisture


ASTM D2216-

0.995 12/8/05 SD


23.0 % 1217/05 12/8/05 RT


20050987-03K-134812:/6105 2:10:00 PMSoil

Radiochemical Analyses22.4 +1- 0.946 pCilgThoriurn 232

* Percent Moistut e

RASL 300

ASTM D2216-'

0.691


21.9 %

12/8/05 SD

12/7/05 12/8/05 RT


Thorium 232

24)050987-04K-134912/6/05 2:15:00 PMS Dil


Inorganics AnalysesASTM D2216-92 21.6 %Percent Moistuwe 12/7/05 12/8/05 RT

Lab ID:

4,.y Client ID:Date Sampled:Matrix:

20050987-05K-1350

12/6/05 2:20:00 PMSoil

Radiochemical AnalysesBDL = Below Dctcctioni Limit

'p'I



2005098712/13/05

12/7/052of3

Outreachlboratorytl1. ortti Aspen

Kliake= Arrow, OK 74C12(918) 251-2515rAX (918) 251-0008

Analytical Report


AnalysisDate

Analyst

Thorium 232

Percent Moisture

HASL 300

ASTM D2216-92


21.8 %

0.990 12/8/05 SD

12/7/05 12/8/05 RT


* Matrix:

20050987-06K-135112/6/05 2:25:00 PMSill

Radiochemical AnalysesHASL 300 22.0 +/- 0.94 8 pCi/g


* Thorium 232

Percent Moisture

0.861 12/8/05 SD

12/7/05 1218/05 RT

Lab ID:Client ID:

Fate Sampled:Matrix:

Thorium 232

20050987-07K4135212/6/05 2:30:00 PMSoil




Thorium 232

20050987-08K-135312/6/05 2:35:00 PMScil




Thorium 232

20050987-09

K-135412/6/05 2:40:00 PMSoil


Inorganics Analyses21.9 %Percent Moisture ASTM D2216-92 12/7/05 12/8/05 RT



Outreach- boratory

iU,Fluo North AspenqJken AlrTo OK 7401Z

(918) Zs5-25i5TAX (918) 251-0008

* . ,

&aiser itiummumii

Thoriun Remediation20050987

12/13/0512/7/05

3 of 3



Date

Lab ID:. . Client ID:

Date Sampled:* Matrix:

20050987-10

K-1325

12/6/05 1:02:00 PMSoil

Radiochemical AnalysesHASL300 34.1 +/- 1.58 pCi/g


* Thorium 232

Percent Moisture

1.31 12/9105 SD

12t7/05 12/8/05 RT

QC Report

* Parameter

i c228

; Amn-241

CO-60

Cs-137

Percent Moisture

Blank LCS LCSD%REC %REC RPD

DUPRPD

MS MSD%REC %REC RPD

Date

NC

57.0

96.0

86.0

95.0

94.0

97.0

50.0

1.9

12.0

1217/OS

12/7/05

12217105

12J7105

12/8/OS6:9

paLab Approval:


OUTREACH1*LABORATORY

311 North Aspen.Broken Arrnw OK 74012' . -phone: (918) 251-2515 . 'M

*F v (89R1-AfR

:CHAIi CUSTODY :.. I t; .

,, , .. . .. . : ... .. * ...

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Results fo:

9c%'L4.Lzc,~L` - ,)

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PO# V 4 r N 4 L II.PROJECT# A- - L. _ .v ! hPROJECTNAME l ' - A , &V5' O4REOUESD TURNAROUND TIME(ADDITIO A HARGES MAYAPPLY)

SAM AM PLI\

C0N

A

NIP.R

.5

CONTAINERSIZE

PLASTICOR

GUASS

PRESERVATIVEU

1. HNO3 pH<22. lcs <4Ca. Ha1 pHd4. H2SO4 pH4s. NaOH pH611

J

C-,

I-

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Q Div;Iffule (t-.REMARKS

(L.E. TERED, UNILERED,GRAB, COMPOSITE)-~~f^ii~K -.. l SS 11 -- -- l A"Eit I MRu

ID SAM11D

~ - \3 { 2- O AIA±FŽ o cX 15 l A h~i -X--~- }k - ______ _ 7- '.-a1 I _ _ ._ _ _ _ _ _ _ _ _ _ n

-. _1 '4 Xo t_ _ X_ _ _ _ _ _ _XJ TXWI i/i'q' - t_ X, .1.Z4 17-I;w~w __" c

1 ~ ~~ \.•2 __S ~ _ t:o__ ______<vX-, l

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I IJ \t.. I . F 1 I .t. .00 ,,l I/ D D7 E f;TIMEi > 4 rRECEIVEDBY: = / DATEŽ ;2L/;llMvtL

RELINQUISHED BY: DATE. TIME RECEIVED-BY.: DATE . T1ME-. :|My signature on this chain of custody I tes that I am authorized by the above company to release sample Th company agree to pay the erdIre balance upon recelptof sample data and It Is understood and a ed that any balance carrled over thirty (30) days Is subject to a 1.5% per mith (18% perannum) late charge. In the eved of default, the companybecomes legally liable for any reasonable attomy and/or collection fees and at related costs necessary to remit the entire balance to Outreich Technologies, Inc (Outreach Laboratory)

SAMPLE RETUIN/DISPOSAU At non hazar s shal b a sp d O 30 days after issu i fInal reporCAtn others *' be retumed at clienti e54nen|

SAMPtC IGIN Gle

Date Recelved: 12/7/05 10:42:35

SampleNumber

ClientSample ID

Lab Number:

DateMatrix Sampled

z^;A 1 t MVUJ

Q0050987

ContainerType

£r l1tic

ContainerSize

i6 oz

* Due: 12114/05

Custody SealSeal Intact

20050987-01 A K-1346Gamma Spec - Thorium 232

Pcrcent Moisture (LOD)

Preservntion

None Yes Yes


. Percent Moisture (LOD)

Soil



.Soil .

12/06/05 Plastic

12/06/05 Plastic

12/06/05 Plastic20050987-04 A K-1349Gamma Spec - Thorium 232Percent Moisture (LOD)

20050987-05 A K-1350Gamma Spec - Thorium 232Percent Moisture (LOD)

Soil

Soil

Soil

12/06/05

12/06/05

Plastic

Plastic

16.oz

16 oz

16oz

16 oz

16oz

16oz

16oz

None Yes

None

None Yes

Yes

None Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

20050987-06 A K-1351Gamma Spec - Thorium 232Percent Moisture (LOD)

None Yes

20050987-07 A K-1352Garmma Spec - Thorium 232


Soil 12106/05 . Plastic None Yes

20050987-08 A K-1353Gamma Spec - Thorium, 232Percent Moisture (LOD)

Soil 12106/05 Plastic None Yes



20050987-10 A K-1325

Soil 12/06/05

12/06/05

Plastic

Plastic

16oz

16'oz

None Yes Yes

YesSoil None Yes

Pnera I

Perce c ture(LOD) tI

CONTAINER INSPECTION

# Coolers Custody Seals Broken 0 Temperature Ice

SAMPLE INSPECTIONSample Seal Broken NA Chain of Custody Record Labels In Tact

Anomalies

fC

- Radiatfon Survey: <300 cpm

Radiation Survey Complete . .0

Inspected By: CJ DATE 1X ,~ ^2 -7 12 4

QA or Designee Review: DAAE I/'7 ('>Sample Custodian Review. ATE

Project Notes:

SUB-REPORT


TABLE OF CONTENTS

Page

1.0 BACKGROUND

2.0 SURVESY ACTIVITIES AND RESULTS



I

2

238

11

ATTACHMENTS

ATTACHMENT A:

ATTA.CUMENT B:

ATTA.CIMENT C:

Figure A-1 Gross Gamma Background and Scanning Survey Results - Lift IFigure A-2 Gross Gamma Background and Scanning Survey Results - Lift 2Figure A-3 Gross Gamma Background and Scanning Survey Results -Lift 3Figure A4 Gross Gamma Background and Scanning Survey Results - Lift hFigure A-5 Gross Gamma Background and Scanning Survey Results - Lift 5Figure A-6 Gross Gamma Background and Scanning Survey Results -Lift 6Figure A-7 Gross Gamma Background and Scanning Survey Results - Lift '7Figure A-X Gross Gamma Background and Scanning Survey Results - Lift 18Figure A-9 Systematic Soil Core Sampling Locations



Q:\P400OOPA4072\FSS Reports\Volume lMhurvcy Unit FSSB OO8\FSSB 008 TOC.doc




March 22, 2006

1.0 BACKGROUND

This sub.-report documents the results of pond parcel excavation backfill unit final status surveyactivities completed as part of the Thorium Remediation Project at the Tulsa, Oklahoma facility(Figure 1). Specifically, this technical report addresses the final status survey of Survey UnitKaiser-F'3SB-008, which consists of a unit of Below Criteria Material or BCM (less than 31.1net pCi/g Th-232 material) placed in an excavation resulting from the removal of radiologically-affected soil from .the Retention Pond area. Survey Unit Kaiser-FSSB-008 is considered a Class1 survey unit with an approximate base surface area of 1,431 m2. It is located on the east side ofthe pond. parcel within the excavation bottom associated with Survey Unit Kaiser-FLSS-019(Figure 3). The survey unit is bordered by excavation backfill Survey Unit Kaiser-FSSB-007 tothe north, excavation backfill Survey Unit Kaiser-FSSB-005 to the east, by a wall of non-impacted soil (clean import borrow material) to the south, and excavation backfill Survey UnitKaiser-FSSB-012 to the west.

A total of eight 2-foot layers (lifts) of BCM material was placed in Survey Unit Kaiser-FSSB-008. It should be noted that BCM was placed in excavation backfill Survey Units Kaiser-FSSB-007 ;nd Kaiser-FSSB-008 simultaneously.


Q-4WOONA4072UMS Repnsq\Vdoue UlS-Wy t FSS1 00MS8 0t Ad= Revision 03/22/06



2.1 G(ros:s Gamma Scan

Each 2-foot lift of BCM was surveyed through a 100 percent coverage gamma scan to confirmacceptable radiological conditions and identify any elevated areas. During the scanning of eachlift, Ihe detector was held close to the BCM surface (1 to 2 inches) and moved in a serpentinepattern. Approximate equal-distant background measurements were also obtained at 1--meterabove the ground surface for each lift of BCM placed. A statistical summary of the backgroundsurvey and 100 percent coverage gamma scan of each BCM lift placed in the survey unit isprovided below in Table 1.

Table 1-- Gross Gamma Scan Results Summar_Lift No. of ScanArea 2-sec. Rate Ave. Stdev. Min. Max. M edian

Name Date (m) Scans (mis) (cpm) (cpm) (cpm) (cpm) (epn)1s, lif tScan 08/31/05 1,431 1,309 0.55 99,018 9,411 37,640 118,249 101,352IS, lif tB . 09/01/05 1,431 12 N/A 81,973 18,553 32,953 98,886 88,0862 dliftScan 09/06/05 1,340 1,006 0.67 81,052 9,884 43,046 112,995 78,859

B 09/06/05 1,340 12 N/A 73,702 4,775 65,939 81,415 72,248

Scan 09/08/05 1,280 1,491 0.43 92,686 9,270 46,242 140,000 92,770

Bgd 09/09/05 1,280 12 N/A 85,758 2,634 81,835 89,885 85,0714 l-ift-Scan 09/12/05 1,120 961 0.58 75,728 8,497 54,680 106,056 74,926

Bg 09/12/05 1,120 12 N/A 70,185 4,163 60,335 76,079 70,478

Scan 09/14/05 1,000 711 0.70 52,752 8,058 41,032 78,494 49,942

Bkgr1. 09/14/05 1,000 8 N/A 49,959 8,176 42,107 63,551 45,930_6 1liftScan 09/19/05 1,000 1,167 0.43 103,707 7,047 63,478 131,627 104,099

B ca 09/20/05 1,000 8 N/A 96,162 2,654 92,003 98,619 97,123

Scan 09/22/05 940 747 0.63 67,371 6,571 55,400 99,234 66,092

Q:\?4OOaU A4072NFSS ReponAWol~me II\Srwy Mt F=S OOV'JSSB 00S tavdoc 2 Revision 03/22/06

Lift No. of ScanArea 2-sec. Rate Ave. Stdev. Min. Max. M edian

Name Date ( m2 Scans (MIs) (cPm) (cpm) pm) (cpm) jc:y L

Bkgd. _ 09/23/05 940 8 N/A 61,185 2,360 56,687 64,056 61,502

Scan 09/27/05 710 670 0.53 66,251 4,324 53,943 81,686 66,421

d. 09/27/05 710 8 N/A 61,879 3,115 57,792 66,804 62,435

Contour maps of the gross gamma background and final (as-left condition) scanning surveyresults are presented by BCM lift on Figures A-I through A-8 contained in Attachment A.The 100 percent coverage gross gamma scan of the 2-foot lifts did not indicate the presence ofsmall areas (1 m2) of elevated activity (above the DCCL for the site).


The final status survey also consisted of systematic soil core sampling based on a random' startpoint: and an equal-distant triangular grid. The Minimum Number of Core Samples (core holes)Required (N) based on the scan MDC was determined to be 9, as documented on Soil SurveyUnit Worksheet No. 1 (Attachment B). Once N was determined, the Survey Unit Area (A) of1,431 m2 along with the N of 9 were used to calculate the Triangular Grid Node Length (L) of13.6 meters and the Height of the Equilateral Triangle (h) of 11.7 meters. A random star. pointwas generated using the random number feature of Excel and documented on Soil Survey UnitWorksheet No. 2 (Attachment B).

A layout of the soil sampling locations is provided on Figure A-9 contained in Attachment A.The :oil core sample locations were demarcated in the field using a GPS unit. A total of 9 coreholes (sample locations) were installed on the grid prescribed over the survey unit (Core Nos. 1through 9). The core holes were of various depths depending on the location within the surveyunit. Core Segments of BCM (typically 3 feet in length) were scanned in the field in 1-footincrements and were also characterized by a 1 minute static count of gross gamma activity. Theresults are presented below in Table 2.

Q 4?A407MWS Rq prtAVo= e UlrSom t nSaSSB cc, te.Ldc3 Revision 0:3/22/06

Table 2 - Soil Core Segment Gross Gamma Survey ResultsSegment Core Depth Gross Gross Static Net Static

Core Core Length Below Scan Rate Count CountNumber Segment (inches) Surface (ft) (kcpm) (cPm) (

I A 36 1 30 34,388 8,743I A 2 31 34,135 8,4901 A 3 32 35,547 9,9021 B 36 4 31 29,915 4,2701 B 5 31 27,782 2,137

=1 B 6 29 26,796 1,1511 C 36 7 31 33,612 7,9671 C 8 32 29,793 4,1.48

= I = C 9 31 35,358 9,7,131 D 36 10 28 33,046 7,4011 D _1 30 30,081 4,436I D 12 30 29,045 3,4001 E 48 13 30 32,150 6,5051 E 14 32 31,077 5,4321 E 15 32 31,067 5,4221 E 16 31 29,822 4,1.772 A 36 1 30 32,259 6,6142 A 2 31 33,860 8,2, 152 A 3 33 38,823 13,1782 B 36 4 29 31,781 6,1362 B 5 30 28,713 3,0682 B 6 32 30,980 5,3352 C 36 7 31 32,537 6,892__2 C 8 33 32,128 6,4832 C 9 35 36,796 11,1512 D 36 10 32 34,890 9,2452 D 11 32 31,361 5,7162 D 12 32 33,864 8,219

= 2 2 E 24 13 28 31,113 5,4682 E 14 28 29,439 3,7943 A 36 1 27 28,143 2,4983 A 2 27 30,258 4,6133 A 3 28 29,445 3,3003 B 36 4 28 27,940 2,2953 B ' 5 28 26,749 1,1 043 B 6 28 29,796 4,1513 C 36 7 30 31,448 5,3033 C 8 31 30,523 4,3783 C 9 32 34,827 9,1823 D 36 10 30 30,533 4,13883 D 11 30 27,987 2,3423 D 12 31 29,547 3,902

_3 36 13 28 29,395 3, 7503 E 14 29 31,492 5,:473 E 15 30 30,978 5,333

I .

Q:J74W2a ads7M; RtpWtsXVolie UDS.o it FSSB OOidFSSB 0S (tdm 4 Revision 03/22/06

Segment Core Depth Gross Gross Static Net IStaticCore Core Length Below Scan Rate Count Count

Number Segment (inches) Surface (ft) (kcpm) (cPm) (Cp)4 A 36 1 32 31,876 6,2314 A 2 32 31,167 5,5224 A 3 33 35,414 9,7694 B 36 4 30 30,960 5,3154 B 5 30 28,966 3,3214 B 6 31 30,048 4,4034 C 36 7 32 33,644 7,9994 C 8 33 35,369 9,7244 C 9 36 36,129 10,4844 D 36 10 31 31,333 5,6884 D 11 31 30,790 5,1454 D 12 32 29,182 3,5374 _ E 48 13 34 31,560 5,9154 E 14 34 33,843 8,198

. 4 E 15 36 32,425 6,7804 E 16 35 33,841 8,1965 A 36 1 31 33,156 7,511

= 5 5 A 2 31 31,814 6,1695 A 3 32 32,150 6,f 055 B 36 4 28 29,826 4,1815 B 5 29 28,192 2,5475 B 6 29 29,292 3,6475 C 36 7 29 32,197 6,5525 C 8 31 32,944 7,2995 C 9 32 34,475 8,E;305 D 36 10 30 30,431 4,7865 D 11 29 28,737 3,0925 D 12 29 31,065 5,4205 _ 48 13 32 32,500 6,8555 E 14 32 32,928 7,2 835 E 15 32 32,057 6,4125 E 16 31 28,347 2,7026 A 36 1 31 30,167 4,5226 A 2 31 31,005 5,36606 A 3 32 31,928 6,2836 B 36 4 28 28,115 2,4706 B 5 27 27,878 2,2336 B 6 28 28,309 2,6646 C 36 7 32 33,293 7,6486 C 8 32 31,714 6,(0696 C 9 33 35,848 10,2036 D 36 10 29 32,868 7,2236 D 11 30 30,074 4,4296 D 12 30 31,595 5,9506 E 36 13 29 29,607 3,9626 = IE_ 14 28 30,355 4,710

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Number Segment (inches) Surface (ft) (kcpm) (cPm) (cPI,)l6 E 15 28 29,768 4,1237 A 36 1 28 30,506 4,8617 A 2 29 32,426 6,7817 A 3 32 33,344 7,699-7 B 36 4 28 31,300 5,6557 B 5 27 29,938 4,2937 B 6 29 31,793 6,1487 C 36 7 29 33,064 7,4197 C . 8 31 32,136 6,4917 C 9 32 38,436 12,7917 D 36 10 30 29,503 3,E587 D 11 30 32,239 6,5947 D 12 31 30,540 4,E957 E 48 13 29 33,404 7,7597 E 14 31 34,855 9,2.107 E 15 31 33,609 7,9647 E 16 32 35,520 9,8758 A 36 1 29 31,647 6,0028 A 2 30 30,815 5,1708 A 3 32 32,243 6,598_8 B 36 4 28 31,192 5,5478 B 5 28 28,272 2,6278 B 6 29 29,225 3,5808 C 36 7 29 33,056 7,4 118 C 8 30 34,042 8,2.978 C 9 31 36,021 10,3768 D 36 10 29 31,658 6,0138 D 11 28 28,302 2,6578 D 12 29 31,067 5,4,228 E 36 13 28 31,520 5,8758 E 14 30 31,997 6,2.528 E 15 30 27,390 1,7459 A 36 1 27 30,615 4,9709 A 2 28 30,773 5,1.289__ 9 A 3 30 32,787 7,1.429 B 36 4 28 28,805 3,1.609 B 5 28 27,054 1,4099 B 6 28 28,234 2,5899 C 36 7 30 32,881 7,2,369 C 8 31 34,171 8,5269 C 9 33 34,029 8,3849 D 36 10 30 31,252 5,6079 D 11 29 30,652 5,0079 D 12 30 31,355 5,7109 E 60 13 30 31,938 6,2939 E 14 31 32,573 6,928

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Number Segment (inches) Surface (ft) (kcpm) (cPm) (cpm9 E 15 31 32,226 6,'819 E 16 31 27,648 2,0039 E 17 31 30,767 5,122

= = = Count: 140 140 140Average: 30 31,494 5,,50

= = = Sid. Dev.: 1.9 2,356 2,356Minimum: 27 26,749 1,J04

=== Maximum: 36 38,823 13,178Median: 30 31,358 5,713

Static Count values (cpm) are equal to the Gross Static Count minus a background value of 25,645cpm, the average of 5 consecutive 1-minute counts performed with the detector on top of the table used toscan the cores, prior to scan activities.

A composite sample representing each core segment was then prepared by combining each set ofthree 1-foot increments in a bucket and breaking up the cores. The final segment of core may beless Ihan or greater than 3 feet depending on the point at which virgin material was encountered.A sample (usually between 500 and 800 grams) was taken from each composite and forwardedto Outreach for analysis of Th-232 activity concentration. Analytical results are provided belowin Table 3. Analytical data reports are contained in Attachment C.

Table 3 --Systematic Soil Core Composite Sample ResultsSegment Composite Std.

Core Core Length Sample Core Th-232 Error MDCNumber Segment (in.) No. Depth (ft) (pCilg) (pCi/g) (pCi/g)

I A 36 K-Il lS 1 27.4 1.54 0.6901 B 36 K-1116 4 16.3 0.701 0.739I C 36 K-1117 7 18.6 0.885 0.7931 D 36 K-1118 10 19.2 1.02 0.614= E 48 K-1119 13 23.5 1.25 0.675

2 A 36 K-1120 1 21.7 1.26 0.6692 B 36 K-1121 4 18.2 1.23 0.6802 C 36 K-1122 7 20.6 1.29 1.322 D 36 K-1123 10 23.6 1.40 0.6612 E 24 K-1124 13 23.4 1.35 0.6183 A 36 K-1125 1 9.47 0.528 0.6023 B 36 K-1126 4 14.9 1.28 0.7883 C - 36 K-1127 7 20.3 1.22 0.6213 D 36 K-1128 10 22.0 1.70 0.6583 E 36 K-1129 13 22.0 1.47 0.7514 A 36 K-1135 1 20.8 1.61 _1.184A B 36 K-1136 4 21.1 1.92 0.846A. C 36 K-1137 7 26.3 2.31 0.631

D 36 K-I 138 10 24.2 1.52 0.945E 48 K-I 139 13 24.8 1.47 0.648

-_ A 36 K-I 130 1 22.0 1.79 0.649

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Segment Composite Std.Core Core Length Sample Core Th-232 Error YMDC

Number Segment (in.) No. Depth (ft) (pCi/g) (pCilg)_p i/g). B 36 K-1 131 4 18.9 0.845 0.667

C 36 K-1 132 7 23.0 2.18 0.805.D 36 K-1 133 10 18.8 1.15 0.687

E 48 K-1134 13 26.6 2.33 0.938(; A 36 K-1140 1 20.6 1.16 1.056 B 36 K-1 i41 4 15.8 1.03 1.02( C 36 K-1 142 7 22.6 2.04 0.7986 D 36 K-1 143 10 24.2 1.59 0.8056 E 36 K-1144 13 15.3 1.25 0.548

A 36 K-1 145 1 22.2 2.02 0.864B 36 K-1 146 4 15.5 0.905 0.784

7 C 36 K-1147 7 21.6 1.91 0.781S D 36 K-1148 10 19.0 1.31 1.147 E 48 K-1149 13 23.0 1.72 0.6473 A 36 K-1150 1 17.2 0.715 0.9338 B 36 K-1151 4 22.9 1.45 0.7708 C 36 K-1152 7 26.5 1.16 0.6648 D 36 K-1 153 10 24.1 1.17 1.198 E 36 K-1154 13 25.7 2.37 0.7209 A 36 K-1155 1 18.9 0.936 0.7559 B 36 K-1156 4 17.4 1.07 0.5229 C 36 K-1157 7 21.2 1.42 1.089 D 36 K-1158 10 24.0 1.36 0.7699 E 60 K-1159 13 24.9 1.15 0.763

Count: 45= = Average: 21.1

St. Dev.: 3.70Minimum: 9.47 = =Maximum: 27.4Median: 21.7

The gross and net Th-232 activity concentrations for all 45 systematic composite samples werebelow the BCM surrogate value of 31.1 pCi/g net Th-232 activity concentration (DCCL). Themaximum gross Th-232 activity concentration was 27.4 pCi/g. The average gross Th-232activity concentration was 21.1 pCi/g. The standard deviation of the 45 composite samples was3.70, which fell below the estimated standard deviation of 4.4 used to calculate the minimumnumber of samples required in the decommissioning plan.

2.3 'ilcoxon Rank Sum (WRS) Testing

The analytical results for the systematic soil core composite samples were evaluated using theprocedure contained in Appendix C, Volume I of this Final Status Survey Report (WilcoxonRank Sum Test). The evaluation showed that the survey unit core sample results meet the I)Pstatistical criterion based on the first statistical test as described below.

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Table 4 -- Reference Group and Survey Unit Sample ResultsReference Th-232 Survey Unit Th-232

Group Sample ID (pCi/g) Group Sample ID (pCL'g)R1 331 0.55 Si K-1115 27.4R2 205 1.05 S2 K-1116 16.3R3 173 0.86 S3 K-1117 18.GR4 178 0.71 S4 K-118 19.2R5 283 1.18 S5 K-1119 23.'5R6 56 1.17 S6 K-1120 21.7R7 292 0.93 S7 K-1121 18.2R8 361 0.47 S8 K-1122 20.6R9 161 1.20 S9 K-1 123 23.6RIO 206 1.02 S10 K-1124 23.4Rll 130 0.94 Sll K-1125 9.47R12 104 1.45 S12 K-1126 14.9R13 20 1.38 S13 K-1127 20.:3R14 222 1.19 S14 K-1128 22.0R15 226 0.99 S15 K-1 129 22.0R16 146 1.23 S16 K-1130 22.0R17 30 1.25 S17 K-1 131 18.9R18 180 0.96 S18 K-1 132 23.0R19 34 1.12 S19 K-1133 18.8R20 29 0.90 S20 K-1 134 26.6R21 181 1.35 S21 K-1135 20.8R22 161 1.20 S22 K-1136 21.1R23 27 1.24 S23 K-1137 26.3R24 309 2.04 S24 K-1138 24.2R25 297 0.85 S25 K-1139 24.3R26 132 1.48 S26 K-1140 20.6R27 243 0.77 S27 K-1 141 15.8R28 166 1.32 S28 K-1142 22.6R29 = 216 0.64 S29 K-i 143 24.2R30 169 1.19 S30 K-1 144 15.3R31 243 0.77 S31 K-1145 22.2R32 31 1.33 S32 K-1146 15.5R33 8 1.24 S33 K-1 147 21.6R34 67 1.18 S34 K-1 148 19.0R35 159 1.46 S35 K-1 149 23.0R36 325 1.50 S36 K-1 150 17.2R37 312 1.26 S37 K-1151 22.9R38 19 0.36 S38 K-1 152 26.5R39 14 1.13 S39 K-1 153 24.1R40 = 333 0.89 S40 K-1 154 25.7

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Reference Th-232 Survey Unit Th-232(;roup Sample ID (pCi/g) Group Sample ID (pCibg)

R41 90 1.37 S41 K-1155 18.9R42 252 1.63 S42 K-1156 17.4R43 86 0.88 S43 K-1 157 21 .'2R44 286 1.13 S44 K-1158 24.0R45_ 39 0.70 S45 K-1159 24.9

Average: 1.10 Average: 21.1.Std. Dev.: 0.32 Std. Dev.: 3.70Minimum: 0.36 Minimum: 9.4.7Maximum: 2.04 Maximum: 27.4fMedian: 1.17 Median: 21.:7

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Survey Unit Kaiser-FSSB-008 which consists of a unit of BCM placed in an excavation resultingfrom. the removal of radiologically-affected soil from the Retention Pond area, is considered aClass 1 survey unit with an approximate base surface area of 1,431 rn2. It is located on the eastside of the pond parcel within the excavation bottom associated with Survey Unit Kaiser-FSS-019 (Figure 3). The survey unit is bordered by excavation backfill Survey Unit Kaiser-FSSB-007 to tha north, excavation backfill Survey Unit Kaiser-FSSB-005 to the east, by a wall of non-impacted soil (clean import borrow material) to the south, and excavation backfill Survey UnitKais.r-FSSB-012 to the west.

A total of eight 2-foot layers (lifts) of BCM material was placed in Survey Unit Kaiser-]SSB-008. It should be noted that BCM was placed in excavation backfill Survey Units Kaiser-FSSB-007 .md 1Kaiser-FSSB-008 simultaneously.


* The 100 percent coverage gamma scan of each lift (final as-left condition) did notindicate the presence of small areas (1 m2) of elevated activity (greater than the DCCLfor the site).

* All 45 systematic composite sample results (gross and net) were below the BCMsurrogate value of 3 1.1 pCi/g net Th-232 activity concentration (DCCL).

* Thie analytical results meet the DP statistical criterion based on the first statisticalevaluation of the data (WRS Test procedure).


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final status survey report volume iii - pond parcel excavation backfill … · 2020-01-04 ·...

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