ML18010A272

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Final Status Survey Final Report Volume 3, Chapter 6, Survey Area Release Record for Land Survey Area 10, Survey Unit 5, Appendix P-1
ML18010A272
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Site: 07000036
Issue date: 12/13/2017
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Westinghouse
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Westinghouse Proprietary Class 3

@ 2013 Westinghouse Elcctic Company LLC. All Righs Reserved.

Westing[ouse Hematite Decommissioning Proj ect NUMBER:

TITLE:

HDP.INST-FSS.LSA1 O.O5 Final Status Survey Plan and Instructions for Survey Area & Unit: LSA 10-05 0

December 4,2013 REVISION:

EFFECTIVE DATE:

Approvals:

Author:

Owner:

Michelle E. Bresnahan Joseph S. Guido

Revision: 2 Page P-l of 10 HDP-PR-FSS-701, Final Status Surrey Plan Development APPENDIX P-l FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS Surwey Area: LSA-10

==

Description:==

Bwial Pits Open lanxl Area Surwey Unit: 5

==

Description:==

Section 5

1. Verify Survey Unlt Isolation & Control
a. Survey Unit properly isolated and/or controlled (indicated by outlining the area with green rope and posting the appropriate signage) as required by HDP-PR-HP-6O2, Data Packnge Developmery! and Isolation and ControlMeasures to Support Final Status Survey?

YesFl Nofl (If 'T.{o", discontinue survey desigrr until area furnover requirements have been met)

L Evaluatc Flnal Remedial Action Support Survey (RASS) Data

a. NumberofRASS Samples: 8
b. Record analytical results and summary statistics for each RASS sample
c. Are all RASS results less, or equal to the appropriate DCGLw?

Yes[ NolFl

d. If "No", have remaining locations of elevated concentration been evaluated? N/Aff-] Yesf NoT=l (ff 'tlo", discontinue eurvy design rurtil investigation is complete.)
e. Have elevated areas identified by gamma walkover surveys been investi gated?

Yesfl N"fl (If '11o", then tenninate sun/ey doigp and perform additional investigation and repeat the planning p,rocess)

f.

Are the Initial Characterization and RASS data suffrcient to support FSS Design? Yesf, Noil (If 'T.Io-, terminate survey design, perform additional characterization or remediation and repeat the plarming process.)

3. Deflne the Survey Unlt Classificadon Write a short description of the survey unit based on historical use and remedial activities:

LSA-I 0-05 is a section of the sorlh burial pit that contained both docunrented (between 1965 and 1970) and udocurpnted (pre-1965) burial pits.

Classification: I Survey Unit Area (m2): 1245

a. Has the Classification changed from the Initial Classificdion as indicated in DP Ctr,. 14? YesEl NoE (If 'Yes", then include a copy of Appendix P-5, Survey Unit Classification Change Form.')

Quality Record Westinshouse Non-Proprietary Class 3 u-234 (oCi/s) u-235 (oCi/s) u-238 (oCi/s)

Tc-99

(&r/el 11r-232 (oCile)

R.a-226 (oCi/s)

Minimum 2.06E+00 1.048-01 8.49E-01 NR 1.00E-01 8.908-02 Maximum 1.028+01 5.66E-01 2.508+00 NR

6. r-0E-01 4.60E-01 Mean 5.47E+00 2.978-01.

1 - 70E+00 NR 3.458-01 3.06E Median 4.89E+00 2.54E-01.

1.87E+00 NR J - b5E-Ua 2.95E-01 Standard Devidion 3.038+00

r. bv-E-u1
b. _LJ.L-Ul-NR 1.878-01 1.29E-01

Revision: 2 Page P-2 of 10 HDP-PR-FSS-7O1, Final Status Surrey Plan Development APPENDD( P-l FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS

b. Is the Survey Unit area less than the maximum size forthe Classification?

YoF-] No[f l (If 'T.Io'0, then terminate survey design and evaluate dividing the survey unit into multiple suwey units.)

4. Define the Surogatc Evaluatlon Area (SEA)
a. Select the appropriate SEA as input to calculating scan sensitivity and variability in the RASS SOF.

Plant Soils SEA -

Tc-99 SEA f Burial Pit SEA F]

5. Deflne Flnal Survey Unit Condidons E No Excavations, Paved/Partially Paved or Excavated but not Backfrlled lFl Excavated and to be Backfrlled fl Excavated and Backfrlled Note: If a portion of a Survey Unit is paved, then Surface Soil strata begins at the bottom of the paved surface and extends 15 cm from that point below gade. The lower depth of the Root Strata remains at 1.5 m below grade. The pavement is then treated as a separde stnrctural Survey Unit within the Survey Area
6. Dellne the TSrpe of FSS Samples and Measurements
a. Select the appropriare types of samples and measuremerrts fon FSS of this Survey Unit that corresponds to the final condition and survey classification of the Survey Unit.

Not Excavated. Paved/Partiallv Paved or Excavded and to be Backfilled:

Excavated but not Bacldrlled:

lF strface Soil (<lScm) Samples.

l* Surface Soil Samples taken from any remaining surface soil strda and Root Strata Soil Samples taken at the same locations as Surface Samples, composited over the entire root strata.

lF Root Strata Soil Samples composited from f ] noot Strda Soil Samples composited from exposed l5cmto 1.5m.

grade to l.5m and Deep Strata Soil Samples taken at the same locations as Root Samples of the top l5cm ofthe deep strata Note: If the SOF of the Root Strala sample Fl Oeep Strda Soil Samples of the top 15 cm of the exceeds 0.5, a composite sample is collest exposed Deep Strata.

from 1.5 meters to an appropriate depth (deep stratum)

Excavated and Backfilled Scan Measurements:

l-Core through backfrll layer to the lowest F lO(P/o Scan Coverage of Exposed Soil.

point where remediation occurred and composite a sample from a coring that n

o/o Scan Coverage of Exposed Soil.

extends one meter deeper than the lowest point where remediation occurred.

lrl Other Qudrty Record Westinghouse Non-Proprietary Class 3

Revision: 2 Page P-3 of 10 IIDP-PR-FSS-701, Final Strtus Survey Plan Development APPENDD( P-l FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS

7. Define Derived Concentnttion Guidellne Levels (IICGL)
a. Select the appropriate DCGL for each Radionuclide of Concern (ROC) based on the corresponding SEA and tlre Uniform Conceptual Site Model (CSM).

o If Tc-99 was measured during the characterizationiRASS survey, then the "Measure Tc-99" DCGI-S will be used from Appendix A of HDP-PR-FSS-701.

e If Tc-99 was not measured in the characterization/RASS survey, then the modified V-235 DCGL

("Infer Tc-99") will be used from Appendix A HDP-PR-FSS-701.

DeeD NOTE: The Uniform DCGL will be used to calculated the number of samples in the statistical survey population.

8. Calcailate Ore Number of Samples in the Stattstical Surrey Populadon NOTE: The Stdistical Survey Population is rodinely derived based on the Uniform DCGL.

o Alternatively, if the Survey Unit excavation extends into multiple CSMs (e.g. surface, root &

d*p), then the DCGt{s) from the most limiting strata can be used with the equations below; OR o If the excavation significantly extends into the deep strata" then the alternate approach presented in section 8.2. 5 of HDP-PR-FSS-701 may be used for determining the mean SOF and weighted standard deviation that accotrnts for the reduced dose from the deeper surface, i.e., by weighting the Root stratum and Excavation DCGI-values.

o The values used in the following equations (SOFmcan and ossp) can be found in the tables from Section 2b and Sestion 7a.

a. Calculate a mean SOF for the charactertzation/RASS survey data set.

ea.,"' - conou-r,.

  • cono,r-o,
  • c*",r-o.
  • cotot"-oo
  • concro-,"r
  • c*oo-rro D\\rrMc : DCGL,T-r, DcGLu-235 DcGLu-23s DCGLT"-ee DcGLft-232 DCGLR"-226 Lower Bound ofthe Grey Region (LBGR) : SOFl,r"- :0.42
b. Calculate the mean and standard deviation in the SOF for the charafrerization/RASS survey data set.

NOTE: For the calculation of SOFMssn and osor, include the concentration for Tc-99 if it was measured. If Tc-99 was not measured-include the modifiedU-235 DCGL and omit Tc-99 concentration term.

Quality Record Westinghouse Non-Class 3 Surface Strata (pCi/e)

Root Strata (oCi/s)

Deep Strata' (pCi/e)

Uniform (oCi/s) u-234 508.5 235.6 872.4 195.4 u-235 204 145 5.8 u-238 297,6 l8i 3 551 168.8 Tc-99 l5l

30. I 74 25.1 Th-232 + C 47 2

5.2 2

Ra-226 + C 5

2.1 5.4 t.9 Strate DCGLs corresnond to t}le Excavation Scenario DCG A

Revision: 2 Page P-4 of 10 HDP-PR-FSS-7O1, Final Status Survey Plan Development APPENDD( P-l FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS r' Used in worlcsheet survvy design Survey Unit osqp:

0.12 n

Background osor:

0.13 l"-l

c. Define the Decision Errors.

Type I Error: 0.05 Type II Error : 0.10 NOTE: The Tlpe II Error is set d 0.10 initially but it may be adjusted with RSO concurrence.

d. Calculale the Relative Shift.

Relative Shift= 1-LBGR osor Relative Shift:

4'33

e. Is the Relative Shift between I and 3?

Yes[- NolT o If "Yes", then continue to step lof.

o If 'T.[o", then adjust the LBGR as necessary to achieve a relative shift between I and 3. In order to accomplish this, the LBGR may be set as low as the MDC for the analytical technique.

Adjusted LBGR: 0.61 Adjusted Relative Shift:

3.00

f.

Determine the Number of Samples (N forthe Sign test or N/2 forthe WRS tesQ required corresponding to the Type I error, Type II Error and the Relative Shift.

r If the Sign Test has been chosen as the statistical test, then use Appendix E of HDP-PR-FSS-701 to determine N.

o If the WRS Test has been chosen as the statistical test, then use Appendix F of HDP-PR-FSS-701 to determine N/2.

No. of Samples (N orN/2):

8

9. Calculat the Scan MDC for Total Uranium o When U-235 is reported as negative or zero and U-238 is reported as positive, set the sample enrichment to O.'7Io/o (ndural uranium).

o When U-235 is reported as positive and U-238 is reported as negative or z,er.c., set the sample enrichment to 100%o (highly enriched).Note : When both U-235 and U-238 dad;aare reported as positive, calculate ttre U-238/U-235 ratio for each sample and use Appendix G of HDP-PR-FSS-701, to determine the uranium enrichment that corresponds to the mean U-238:U-235 ratio.

a. Calculate and record the average Uranium enrichment for the survey unit using the enrichment calculated for each individual sample.

Average Enrichment 7o7o1 2'91 NOTE: The Activity Fractions ( / ) for each radionuclide that corresponds to the mean enrichment in the following calculatio,ns is obtained from Appendix G of HDP-PR-FSS-701.

If the Uniform DCGL is not used, and the excavation extends into multiple CSMs (e.g. surface, Quahty Record Westinghouse Nur-Proprietary Class 3

Revision: 2 Page P-5 of l0 HDP-PR-FSS-701, Final Status Surwey Plan Development APPENDIX P-l FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVBY UNITS root & deep), then the most conservative DCGI,s should be used in the following calculation.

b. Calculate a DCGL* for Total Uranium DCGL.*,' =

-fr-"n

.fu-rr,

..fr-"r, DCGLu_2y DCGLu_23s DCGL,_238 DCGlorotu for Total Uranium :

82'4 pCi/g

c. Identify the Radiological Instrumerfi that will be used for scanning.

F 2"x2" NaI Detector F FIDLER NaI Detector [F other

d. Calculate the Scan MDC for the selected instnrment NOTE: 2x2 Sodium Iodide (wittr surveyor efficiency factor of 0.5 and a background count rate of 10,000 cpm).

If the instrument is not a2"x 2" NaI detector, or if the background count rate exceeds 10,000 cpm, the MDC.crl can be determined in accordance with DP Ch. 14, section 14.4.4.2.9 (Reference 5.1) of HDP-PR-FSS-7O1.

,ScenMDC=

fu-ru fu-rr,

.fu-u" 7383pCi/ g 4.9pCil g 62.8pci/ g MDq"e, for Total Uranium: 83.8 pCi/g

10. Cdcallate the Scan MDC forTh-?32 and Ra-226
a. Selectthe appropriate DCGI4, forTh-232 andRa-226 corresponding to the soil strdathd will be exposed at the time of FSS and the SEA where the survey unit is located.

TL-232DCGI"4': 2 pCi/g Ra-226DCGt*,: l'9 pcle NOTE: If the Uniform DCGL is not used and the excavation extends into multiple CSMs (e.g. surface, root &

deep), then the most conselative DCGL forthe strata should be used. With RSO concurence, the alternate approach as presented in DP Ch. 14, section 14.4.3.1.10 (Reference 5.1) of HDP-PR-FSS-7Ol may be used in lieu of using the most conservalive.

b. Identify the Radiological Lrstrument that will be used for scanning.

E 2"x 2" NaI Detector lr FIDLER Na[ Detector ll.-_ Other

c. Calculate the Scan MDC forthe selected instrument Note: Table 6.4 of NUREG-1507 (Reference 5.8) of HDP-PR-FSS-701 has calculated an MDC."* of 1.8 pCilg for th-232 and 2.8 pCi/gforR:a-226 when using a2"x2" NaI detector.

Note: If the selected instrumerrt is not a 2"x2" NaI detector, then the MDCsce'r can be determined in accordance with DP Ch 14 section 14.4.4.2.9 (Reference 5.1) of HDP-PR-FSS-701.

MDCscn forTh-232 :

1.8 pCr/g MDCscar forRa-226: 2.8 pCr/e NOTE: If a value is not applicable, mark as N/A.

itv Record Westinghouse Non-Propielry Class 3

Revision: 2 Page P-6 of 10 HDP-PR-FSS-701, Final Status Survey PIan Development APPENDD( P-l FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS

11. Adjust the Statistical Sample Population Stue (N or N/2) for Scan MDC
a. If the survey unit is either Class 2 or 3, then proceed to step 12.
b. Divide the total area of the survey unit by the Number of Samples (N or N/2) calculated in step 8f to calculate the area bounded by the statistical sample population.

Area Bounded by the Statistical Sample Population (A*) :

155.6

^2 URANIUM

c. Is the Scan MDC for the selected instrument less than the DCGI-* that was calculated for Total Uranium? (compare values from step 9b and 9d)

Yes[ Nofl (Ifyes proceedto step llk)

d. Usingthe Area Factors in Appendix H of HDP-PR-FSS-701, calculate a Total Uranium AF for each listed area using the Activity Fractions (/) for e ach radionuclide that corresponds to the mean enrichment from Appendix G of HDP-PR-FSS-701.

tdu I

Jv-s Iv-o, fu-u

)

uLvLr'rN 'lAF.-" occt.^* Ar*rr" DcGq*- AF*, Dc%*)

Area (m")

15337s 10000 3000 I 000 300 100 30 t0 J

1 AFrotatu 1.00 l.l3 t.l8 1.18 2.35 3.39 4.69 6.79 13.89 29.39 NOTE: The AFs for the Uniform strata will generally be used. The RSO may approve use of AFs from the Surface, Root or Deep CSMs, or the Excavation Scenario'

e. Find the Area Factor (AFrot ru) calculated in the previous step that corresponds to the area bounded by the Statistical Sample Population (A* ).

AF1oflr for the Bounded Area (A* ) :

3'l

f.

Multiply the DCGI-* calculated for Total Uranium by the Area Factor (AFroru) to derive a DCGLeLaq for Total Uranium.

DCGLn,rc for Total Uranium :

252'83 pCr/e

g. Is the MDC."- for the selected instrument less than the DCGLauc that was calculaled for Total Uranium?

NArJ YesFl Nofl (If "Yes" then proceed to step l lk.)

h. Calculate a new AF (AFeuc) corresponding to the MDCsca,r for the selected instrument by dividing the MDCscs'r bythe DCGLw.

AFe1,rc for Utotal :

NA

i.

Find the Area (A') thd corresponds to the Area Factor (AFeMc).

A'forUtotal :

NA Quality Record Westinghouse Non-Proprietary Class 3

Revision: 2 Page P-7 of l0 HDP-PR-FSS-701, Final Strtus Survey Plan Development APPENDTX P-l FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS

j.

Calculate an Adjusted Number of Samples (Ner.,rc) for the Statistical Sample Population size that corresponds to the bounded Asrr,rc.

Ar,,

nnrc =-A, Nnrrc corresponding to A' for Utotal :

NA THORIUM-232

k. Is the MDCsss,, for Th-232less than the DCGLw ?

Yes[9 No,L (If "Yes" then proceed to step 11r)

L Find the Area Factor (AF) in Appendix H that corresponds to the area bounded by the Statistical Sample Population (A*).

AFn'-zrz forthe Bounded Area (A*) :

NA

m. Multiply the DCGLry for Th-232 by the Area Factor (AF) to derive a DCGLer,,rc for T\\-232 DCGLsvc forTh-232 : NA pCr/g
n. Is the MDC'.- for T\\-232less than the DCGLeyg that was calculated for T"h-232?NAg Yes! No,L (If 'oYes" then proceed to step I 1r)
o. Calculate a new AF (AFeruc) corresponding to the MDCscan for the selected instrument by dividing the MDCsca'r by the DCGL..,.

Alpuc fotTh'232 :

NA

p. Find the Area (A') that corresponds to the Area Factor (AFertrc).

A' for 1\\-232:

NA NOTE: The Area Factors for T\\-232 can be found in Appendix H of HDP-PR-FSS-701.

q. Calculate an Adjusted Number of Samples (Ner,ac) for the Statistical Sample Population size that corresponds to the bounded Aeuc.

Asr

^nrc =_IJ_

NsMq correspondingto A' for T\\-232 :

NA RADIUM-226

r.

Is the MDCs"r,,for Ra-226less than the DCGLw ?

YesfJ NoEJ (If "Yes" then proceed to step 12)

s. Find the Area Factor (AF) in Appendix H that corresponds to the area bounded by the Statistical Sample Populalion (A*).

AFp"-226 for the Bounded Area (A*) :

3.57 Quality Record Westinghouse Non-Proprietary Class 3

Revision: 2 Page P-8 of 10 HDP-PR-FSS-7O1, Ffurat Strtus Surwey Plan Development APPENDD( P-l FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS

t.

Multiplythe DCGI* for Pta-226 by the Area Factor (AF) to derive a DCGLSMc forF.a-226 DCGLauc forRa-226 :

6.79

u. Is the MDC""* for Ra-226less than the DCGLel,,rc that was calculated for P.a-226?NA[f Yes[F No[F (If "Yes" then proceed to step 12)
v. Calculate a new AF (AFBuc) corresponding to the MDC.crn forthe selected instnrment by dividing the MDCscan bythe DCGtq' AFsMq fotka-226 -

NA

w. Find the Area (A') that corresponds to the Area Factor (AFer"rc).

A'for Fia-226 --

NA

x. Calculate an Adjusted Number of Samples (NeMc) for the Statistical Sample Population size that corresponds to the bounded Asuc.

N

A"t

^. EMc A,

Nr.-uc corresponding to A' for Ra-226 :

NA

12. Calculate the Grid Spacing
a. I-arger of N from step 8f and the maximum value of NpMs from 1lj, I lq or I lx.

(Nelrcfmax] or N) :

8

b. Is the Survey Unit a Class 3 Survey Unit?

(If "Yes", then continue to step l3)

c. Calculate Grid Spacing (L).

Yes[F No[F

[F tnrr,*tar Grid L=

lI squarecria L=

Crrid Spacing (L) for Survey Unit:

13.41

13. Generate r Survey Map a-Assign a unique identification number to each sample in the Statistical Sample Population using the guidance and direction provided in Appendix M of HDP-PR-FSS-701.
b. Generate a graphic representation of the Survey Unit with dimensions and boundaries corresponding to the established reference coordinate systetn in accordance with step 8.2. 10 of HDP-PR-FSS.7O1.
c. Using the reference coordinate system, ascertain coordinates for each sample location.
d. Designate sample locdions, and location coordinates on Appendix P-4, FSS Sample & Measurement Locations & Coordinates and attach a copy of that form to this FSSP.
e. Attach a copy of the developed Survey Map with sample locations to this FSSP.
14. QC & Biased Samples
a. Randomly choose 5%o of the Stdistical Sample Populdion as QC Samples in accordmce with Record Westinghouse Non-Proprietary Class 3

Revision: 2 Page P-9 of 10 HDP-PR-FSS-701, Final Status Survey Plan Development APPENDD( P-l FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS HDP-PR-FSS-703, Final Stohts Survey Quality Control (Reference 5.9) of HDP-PR-FSS-701.

b. Designate QC sample locations, and location coordindes on attached Appendix P-4, FSS Sample

& Measurement Locations & Coordinates.

c. Designate if any biased samples will be taken at the discretion of the survey designer and the basis for taking them. Necessary biased samples will be explained on Appendix P-3, FSS Sample Instructions.
d. Using the reference coordinate system, determine coordinates for each biased sample location.
e. Designate biased sample locations, and location coordinates on attached Appendix P-4, FSS Sample &

Measurement Locations & Coordinates.

15 Scan Coverage

a. The Survey Unit is:

v Class 1 l-* Class 2 f

Class 3

b. Based on the Survey Unit Classification, the scan coverage in this Survey Unit is;

[l7 100%o Scan Coverage of exposed soil F-

-%o Scan Coverage of exposed soil

c. Designate any specific scan locations as determined necessary, on Appendix P-3, FSS Sample Instructions and attach a copy of that form to this FSSP.
16. Investigation Levels
a. The Survey Unit is: l-- Class 3
1) Scan Investigation kvels are set at:

NA cpm Sample Investigation kvels are set at5Oo/o of the DCGL* when expressed as the SOF.

b. The Survey Unit is: [f Class Z
2) Scan Investigation kvels are set at:

NA cpm Sample Investigation Irvels are set at the DCGI* when expressed as the SOF.

c. The Survey Unit is: 17 Class 1
3) Scan Investigation kvels are set at:

4562 cpm Sample Investigation L.evels are set at the DCG[* when expressed as the SOF.

17. Suney Instmctions and Sample Measurement Locations and Coordinatts FSSP Approval Attach a copy of completed forms as appropriate:

tr Appendix P-3, FSS Survey Sample Instructions, tr Appendix P-4 FSS Sample Measurement Locations & Coordinotes f Appendix P-5, FSS Unit Classi/ication Change Form l7 Survey Unit Figrre f-other:

Quality Record Westinghouse Non-Proprietary Class 3

Revision: 2 Page P-10 of l0 HDP-PR-FSS-701, Final Status Surwey Plan Development APPENDIX P-l FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS 1& FSSP Approval Prepared by :

Peer Reviewed by :

Approved by (RSO):

Jvl'o\\llu Bustulo,t*

(Print Namc)

Q,e, i< Neu'en,*

h.#S lz-'a{-t;t (Datc)

(PrintNamcL oSe?L erv /t2)

Quality Record Westinghouse Non-Class 3

LSA-10-05, Rev. 0, 12/4/2013 Page P-1 of 5 HDP-PR-FSS-701, Final Status Survey Plan Development (Revision 2)

APPENDIX P-3 FSS SAMPLE INSTRUCTIONS Quality Record Westinghouse Non-Proprietary Class 3 Survey Area:

10

==

Description:==

Burial Pits Open Land Area Survey Unit:

05

==

Description:==

Section 5 Comments:

The LSA-10-05 survey unit is classified as MARSSIM Class 1. LSA-10-05 is located in the southern half of the Burial Pit Open Land Area. The area that comprises the footprint of LSA-10-05 was used to bury radioactive and chemical wastes during the operational lifetime of the Hematite Fuel Fabrication Facility. Documented burial pits, under the governance of the Atomic Energy Commissions regulations, were generated between 1965 and 1970. Also, undocumented waste burials were thought to have occurred pre-1965.

Remediation in LSA-10-05 consists of two areas that were excavated because of VOC contamination. These excavations resulted in multiple benching requiring systematic sampling of the sidewalls. The following instructions do not address the sampling of sidewalls for this area. An addendum will be written and attached to these instructions to provide direction for the sampling.

END OF COMMENTS

LSA-10-05. Rev. 0. l2l4l20l3 Page P-2 of 5 HDP-PR-FS$701, Final Status Survey Plan Development @evision 2)

APPENDIX P-3 FSS SAMPLE INSTRUCTIONS Gamma Walkover SurveY (GWS):

Scan Coverage 1007o accessible excavation floors and walls Scan MDC 83.8 pCi/g Total Uranium (1,512 ncpm)

Investigation Action Level (lAL) 4,562 net cpm Systematic Sampling Locations:

Depth Number of Sample Comments These samples will be taken on a systematic grid.

0-15cm 0

15cm-1.5m 0

> 1.5m 8

Biased Survev/Sampling Locations:

Biased samples may be collected during Gamma Walkover Surveys (at the discretion of the HP Technician), after statistical analysis ofthe survey data, or at the direction of Radiological Engineering.

Instrumentation Ludlum 2221 with 44-10 (2x2 NaI) detector Used for gamma walkover survey and to obtain static count rates at biased measurement locations.

General Instructions:

l. Summarize daily work activities on the log sheets provided in Appendix P-6. Provide a description of site conditions (including the condition of isolation controls), samples collected and the status of gamma walkover surveys for every shift that involves work in this survey unit. In the event that a situation arises where the survey instructions cannot be followed as written, stop work and contact Radiological Engineering for resolution. All changes to the survey instructions shall be approved by the RSO before continuing work and be documented in the FSS Field Log.
2. In accordance with HDP-PR-FSS-701, Final Status Survey Plan Development (\\ec.8.4.2), documentation of activities performed, equipment used, potential safety hazards that may be encountered during the performance of characteriaation activities (along with associated confols) will be documented using the FSS Daily Task Briefing log sheet.
3. A gamma walkover survey (GWS) will be performed using a 2"x2" NaI (Tl) detector. Move the survey probe in a serpentine pattern approximately 6-inches off-set from centerline to the body (e.g., "shoulder-to-shoulder") with the probe as close to the surface as possible; maintaining the detector as close as possible to the surface (nominally not to exceed l-in. distance from the surface). The meter will be moved at a speed of approximately I foot per second or less. The gamma walkover survey will cover the percentage of the accessible surface areas within the area of interest as indicated in the table above. Notiff Radiological Engineering of any areas, conditions or constraints where surveying (or subsequent sampling) may not be possible. Document the conditions and any resolutions in the FSS Field Log.
4. A GPS system and data logger should be interfaced with the meter. The downloaded information will then be used to prepare maps illustrating relative count rates and to perform statistical analysis of the data. If a GPS data Quality Record Westinghouse Non-Proprietary Class 3

LSA-10-05, Rev. 0, l2l4l20l3 Page P-3 of5

).

HDP-PR-FSS-701, Final Status Survey Plan Development (Revision 2)

APPENDIX P-3 FSS SAMPLE INSTRUCTIONS logging system is not available, contact Radiological Engineering to determine specific instructions for performing and documenting gamma walkover surveys.

This is a Class I Survey Unit. Each sample location will be selected systematically and have associated GPS coordinates specified. In the case of inaccessible sampling locations additional pairs of random sample coordinates may be generated with the Radiological Engineering's approval in order to identi! an acceptable sampling location.

A map of the survey unit showing predetermined sample locations with associated GPS coordinates will be generated. A copy of the sample map and survey locations will be aftached to the survey instruction.

Veri$ that isolation controls established in accordance with HDP-PR-HP-602 are in place prior to the start of FSS.

Ensure isolation controls include, as necessary, the use of "waddles", a berm, or trenching to minimize the potential for contaminated soils and water from surrounding areas to cross the boundary of this unit.

Perform daily pre and post QC source checks in accordance with HDP-PR-HP-416.

At each systematic soil sampling location a composite soil sample will be collected from each location and depth as determined after the completion of excavation (and will be provided in Appendix P-4). The systematic sample locations will include 0 (zero) samples taken at a depth of 0 - 15 cm (surface) and 0 (zero) samples collected at a depthofl5cm1.5m(root)and8(eight)samplescollectedatadepthofl.5mtol.65m(deep).

Biased soil sampling locations may be determined at the discretion of the HP Technician during the performance of the GWS. Biased soil sampling locations may also be determined at the discretion of Radiological Engineering based on statistical analysis of the survey/sampling data or process/historical knowledge of the area. Biased soil samples will be collected in a manner similar to systematic soil sampling locations. Radiological Engineer and/or the HP Technician will log the reason for collection of biased samples in the Field Log sheet and record the location of biased samples on Appendix P-4 of this survey instruction.

NOTE: If trash, waste, or other non-native materials are observed during sample collection, stop sampling activities and notify HP Supervision (or Radiological Engineering) before collecting samples at any sample location in the unit.

All samples collected as part of this survey will be analyzed at an off-site laboratory by gamma spectroscopy for uranium and gamma emitting radionuclides and for Tc-99 by liquid scintillation counting or ICPMS.

7.

8.

9.

10.

I l.

Specific Instructions:

NOTE: Unless otherwise indicated, the performance of these specific instructions is the responsibility of the HP Technician.

Before Beginning Work

l. Rad. Engineer/IlP Technician: Verifu, each shift, that isolation controls, established in accordance with HDP-PR-HP-602, are in place prior to the start of FSS using the Daily Task Briefing log sheet.

NOTE: LSA l0-05 is bordered on the North by LSA-10-04, to the South by LSA-10-07, to the East by LSA 06, and to the West by LSA-08-14 and LSA-08-09. There are no burial pit areas being excavated directly adjacent to LSA-l0-05 however; a physical barrier will be in place to minimize the potential for cross contamination from the surrounding LSAs with the exception of the shared boundary of LSA-10-06 and LSA-10-07. Also the ground naturally slopes toward LSA-08-14 so it was not necessary for a physical barrier between LSA-10-05 and LSA 14.

2. Rad. Engineering/IlP Technician: Walk the area looking specifically for any debris material (e.g. asphalt, plastic, concrete, etc...) that may indicate further remediation efforts are necessary.
3. Rad. Engineer/IlP Technician: Perform a daily task-specific briefing; documenting the attendants, planned work activities, anticipated hazards, and contols on the FSS Daily Task Briefing log sheet.

NOTE: If soil sampling to a depth greater than one foot is required, ensure HDP Safety & Health are aware Quality Record Westinghouse Non-Proprietary Class 3

LSA-10-05, Rev. 0, l2l4l20l3 Page P-4 of 5 HDP-PR-FSS-701, Final Status Survey Plan Development (Revision 2)

APPEI\\DIXP-3 FSS SAMPLE INSTRUCTIONS of the activity, an Excavation Permit (Form HDP-PR-EHS-021-1) has been performed for the work area, and underground utilities have been identified and marked.

Gamma Walkover Surveys (GWS)

l. Establish a general area background, in accordance with HDP-PR-FSS-71 l
2. Perform a gamma walkover of the survey unit holdiqg the probe as close to the surface as possible, in accordance with HDP-PR-FSS-71l.
a. Look and/or listen for locations that exhibit anomalous readings (e.g., count rates in excess of the area background count rate andJor count rates that exceed the IAL for this unit).
b. Mark the location(s) exhibiting anomalous readings to facilitate possible future investigations (for example, use a flag, stake, or other marking resistant to anticipated environmental conditions).
3. At each location where anomalous readings occur, perform a more detailed point survey of the area. Pause and place the survey probe as close as possible to the surface to define and record the total count rate associated with the area of interest on the Field Log.

NOTE: If field conditions limit the ability to perform contact readings, collect readings as close as practical.

Contact HP Supervisor (or Radiological Engineering) regarding the issue for each location. The HP Technician, HP Supervisor and/or Radiological Engineer will log the issue (and resolution) for each location in the FSS Field Log and on applicable HDP survey forms.

4. GPS (and associated data logger) is the preferred method for performing GWS.

When a GPS and data logger is used, down load and provide the survey data to a GIS Specialist.

a. GIS Specialist: Provide colorimetric maps indicating survey coverage and measurements exceeding the IAL and send the survey data to Radiological Engineering.
b. Radiological Engineering: Provide statistical analysis to determine population characteristics of the survey data set and identiff any areas requiring additional surveys or sampling. Contact HP Technician to mark additional locations requiring survey or sampling as described above in Step 5 of these Specific Instructions.

If a GPS and data logger cannot be used to perform GWS in any portion of this survey unit, the HP Technician will contact Radiological Engineering to determine compensatory survey methods. Radiological Engineering will log the compensatory methods in the FSS Survey Log.

Download the survey data at the end of each shift. To minimize data loss, periodically save the GWS data set throughout the shift.

Sampling l

Collect soil samples in accordance with HDP-PR-FSS-711 at locations identified in Appendix P-4. Note that additional biased sampling locations may also be listed as determined by the GWS or as determined by Radiological Engineering.

2. Collect one duplicate sample for every 20 samples. A minimum of one duplicate sample is required for each survey unit.
3. Care should be exercised to ensure the entire sample is included from within the depths specified for sampling.

When collecting the composite samples, vegetation and native debris/rocks with a diameter greater than I inch should be discarded.

NOTE: If a discrete source of radiation (e.9., a fuel pellet) is discovered during the performance of sampling activities, contact HP Supervision or Radiological Engineering. Pause any additional characterization work in the immediate area and use a plastic bag to contain the material. Label the plastic bag per HDP-PR-HP-201, Section 8.2 "Labeling Radioactive Material" and transfer the material from the survey unit for controlled storage in the Quality Record Westinghouse Non-Proprietary Class 3

LSA-10-05, Rev. 0, 12/412013 Page P-5 of5 HDP-PR-FSS-701, Final Status Survey Plan Development (Revision 2)

APPEI\\DIX P-3 FSS SAMPLE INSTRUCTIONS Building 230 Sample Cage via physical turnover to the shift Sample Custodian.

4. Monitor the count rates observed at all accessible surfaces within close proximity (e.g., 2 meter diameter) of each biased sampling location, as practical. Note any accessibility issues and discuss compensatory measures with supervision.
a. Contact and brief Radiological Engineering on the results obtained from monitoring the locations of biased sampling to receive instructions for further investigation or the need for additional excavation.
5. Collect bias samples from the surface to a depth of 6 inches.
6. Monitor the count rates within the depression created by the collection of biased soil samples.
7. Obtain and record the count rate on contact with features other than soil within the excavation. (e.9., native rock).

Record the nature and extent of features other than soil found within the excavation in the FSS Survey Log and contact Radiological Engineering to determine additional characterization methods, if necessary.

8. Submit samples for analysis following sample chain of custody requirements contained in HDP-PR-QA-006.

Prepared by:

Peer Reviewed by:

Approved by (RSo):

Quality Record (fi,cl"lliB.xs*lo*

(Print Name) flo,K //evu,n (Print Name) tl.?

J0S47V ce-i n.

(Print Name) ttlqlts (Date) 17'o 7* 2tt\\

(Date)

/z-o{- /3 (Date)

Westinghouse Non-Proprietary Class 3 Signature)

Revision: 2 Page P-1 of 1 HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-4 FSS SAMPLE & MEASUREMENT LOCATIONS & COORDINATES Quality Record Westinghouse Non-Proprietary Class 3 Survey Area:

No.

LSA 10

==

Description:==

Burial Pits Open Land Area Survey Unit:

No.

05

==

Description:==

Section 5 Survey Type:

Soil Sampling Classification: 1 Measurement or Sample ID Surface or CSM Type Start Depth (feet)

End Depth (feet)

Northing (Y Axis)*

Easting (X Axis)*

L100501BES00 Deep S

0.0 0.5 865073.9 827626.8 L100502BES00 Deep S

0.0 0.5 865042.8 827595.7 L100502BEQ00 Deep Q

0.0 0.5 865042.8 827595.7 L100503BES00 Deep S

0.0 0.5 865031.4 827638.2 L100504BES00 Deep S

0.0 0.5 865000.3 827607.1 L100505BES00 Deep S

0.0 0.5 865020.0 827680.7 L100506BES00 Deep S

0.0 0.5 864988.9 827649.6 L100507BES00 Deep S

0.0 0.5 864977.5 827692.1 L100508BES00 Deep S

0.0 0.5 864966.2 827734.6

  • Distance in feet from southwest corner of the surface.

Surface; Floor = F, Wall = W, Ceiling = C, Roof = R CSM; Surface, Root, Deep or Uniform Type; Systematic = S, QC = Q, Biased = B, Investigation = I

LEGEND:

a Corner Point fl rss Survey Unit n

gP Excavation Unit f]

Burial PitArea

-r-RR Spur x-- Fence N:86511 N: 865065.2 E:827663.9 N: 865045.4 E:827560.4 N: 865019.2 N: 864981.6 E:827648.7 N: 864970 E:827673.9 N: 864954.4 E:827704.5 0

20 40 Feet LSA Corner Points LSA-10-05 Hematite Decommissioning Project Jefferson County Hematite, MO Date:

1l-27-13

LEGEND:

O Systematic Samples I

rss survey unit n sP Excavation Unit n*iut Pit Area

--t-- RR Spur

>e-Fence L1005018 BP South 1 o

L100502B8S00 Lr0o502BEQ00 o

6_05 Ll00505BES00 0

20 40 Feel t==--

FSS Systematic Sampling LSA-10-05 Hematite Decommissioning Project Jefferson County Hematite. MO

HDP-PR-FSS-7o1 Appendix P-1 (Addendum) 2.9125 Quality Record Samole lD u-23/.

u-235 u-238 U-238/U-235 Ratio Enrichment 5272-RA-130516-05-01 8.75 0.48 2.60 5.42 2.80 5272-RA-1 30516-05-02 4.37 0.23 2.16 9.27 1.70 5272-RA-1 3051 6-05-03 3.00 0.16 1.11 6.81 2.30 5272-RA-130516-05-04 2.06 0.10 1.78 17.12 1.00 5272-RA-130516-05-05 7.28 0.40 0.85 2.13 6.90 5272-RA-130516-05-06 2.59 0.14 1.11 7.93 2.OO 5272-RA-1 3051 6-05-07 10.25 0.57 1.95 3.45 4.40 5272-RA-130516-05-08 5.42 0.29 2.05 6.97 2.20 Average

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