ML18010A279
| ML18010A279 | |
| Person / Time | |
|---|---|
| Site: | 07000036 |
| Issue date: | 08/01/2013 |
| From: | Bresnahan M Westinghouse |
| To: | Office of Nuclear Material Safety and Safeguards |
| Shared Package | |
| ML18010A247 | List:
|
| References | |
| HEM-17-72 | |
| Download: ML18010A279 (22) | |
Text
© 2013 Westinghouse Electric Company LLC. All Rights Reserved.
(9 Westinghouse I
.t(., '
- ,.... 1
... 'l '.,
I
- t.
,.. ~.l!-'
- ..,* :~*:
'{,.
~
Hematite Decommissioning Project NUMBER:
HDP-INST-FSS-LSAt0-08 TITLE:
Final Status Survey Plan and Instructions for Survey Area & Unit: LSA 10-08 (Bladder Dam and New Berm Installation)
REVISION:
l EFFECTIVE DATE:
August 1, 2013 Approvals:
Author:
Owner:
Michelle E. Bresnahan Joseph S. Guido
Revision: 2 Page P-1 of 10 HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-1 FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS Survey Area: LSA-I 0 Survey Unit: 08
==
Description:==
Burial Pits Open Land Area
==
Description:==
NE Comer ofLSA 10-02 (Berm)
- 1. Verify Survey Unit 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-602, Data Package Development and Isolation and Control Measures to Support Final Status Survey?
Yes~ No!:]
(If "No", discontinue survey design until area turnover requirements have been met.)
- 2. Evaluate Final Remedial Action Support Survey (RASS) Data
- a.
Number ofRASS Samples:
6
- b.
Record analytical results and summary statistics for each RASS sample U-234 U-235 U-238 Tc-99 Th-232 Ra-226 (pCi/g)
(oCi/g)
(pCi/Q)
(pCi/g)
(pCi/g)
< oCi/!!)
Minimum 1. 52E+OO 7. 00E-02 9.00E-01 NR
<=BKGD
<=BKGD Maximum 6.76E+Ol 3. 72E+OO 9.90E+OO NR 4.00E-02 l. SOE-01 Mean 2. 33E+Ol
- 1. 27r.:+OO 5.29E+OO NR
<=BKGD
< - BKGD Median 1.43E+Ol 7.GOE- 01 5.lOE+OO NR
<=BKGD
<= BKGD Standard 2. 46E+Ol
- l. 36E+OO
- 4. 26E+OO NR 2.14E-01 l.54E-01 Deviation
- c.
Are all RASS results less, or equal to the appropriate DCGLw?
- d.
If"No", have remaining locations of elevated concentration been evaluated?
(If No", discontinue survey design until investigation is complete.)
Yes~ No[F]
N/Aif} Yes[J Nolij
- e.
Have elevated areas identified by gamma walkover surveys been investigated?
YesE] No[C]
(If No, then t=inate survey design and perform additional investigation and repeat the planning process)
- f.
Are the Initial Characterization and RASS data sufficient to support FSS Design?
YesE: Noe]
(IfNo", terminate survey design, perform additional characterization or remediation and repeat the planning process.)
- 3. Define the Survey Unit Classification Write a short description of the survey unit based on historical use and remedial activities:
This survey wut was developed to support the ~
installation ofa new be1m in the NE comer ofLSA l 0-02.
SEE AlTACHEMENTFOR DETAIL
~
g\\ 1\\r~
Classification:
Survey Unit Area (m2) :
11 0.5
- a.
Has the Classification changed from the Initial Classification as indicated in DP Ch. 14? Yes[J No~
(If "Yes", then include a copy of Appendix P-5, Survey Unit Classification Change Form.)
Quality Record Westinghouse Non-Proprietary Class 3
Revision: 2 Page P-2 of 10 HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-1 FINAL ST A TUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS
- b.
Is the Survey Unit area less than the maximum size for the Classification?
Yes~ NofFl (If "No", then tenninate survey design and evaluate dividing lhe survey unit into multiple survey units.)
- 4. Define the Surrogate Evaluation Area (SEA)
- a.
Select the appropriate SEA as input to calculating scan sensitivity and variability in the RASS SOF.
Plant Soils SEA F Tc-99 SEA r Burial Pit SEA ~
S. Define Final Survey Unit Conditions
[CJ No Excavations, Paved/Partially Paved or Excavated but not Back.filled
!Pl Excavated and to be Dack.filled
[D Excavated and Backfilled 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 grade. The lower depth of the Root Strata remains at 1.5 m below grade. The pavement is then treated as a separate structuraJ Survey Unjt within the Survey Area
- 6. Define the Type of FSS Samples and Measurements
- a.
Select the appropriate types of samples and measurements for FSS of this Survey Unit that corresponds to the finaJ condition and survey classification of the Survey Unit.
Not Excavated, Paved/Partially Paved or Excavated and to be Backfilled:
Excavated but not Backfilled:
[F Surface Soil (< 15cm) Samples.
[F Root Strata Soil Samples composited from 15cm to 1.5m.
Note: Jfthe SOF of the Root Strata sample exceeds 0.5, a composite sample is collect from 1.5 meters to an appropriate depth (deep stratum)
Excavated and Backfilled
[r Core through back.fill layer to the lowest point where remediation occurred and composite a sample from a coring that extends one meter deeper than the lowest point where remediation occurred.
F Surface Soil Samples taken from any remairung surface soil strata and Root Strata Soil Samples taken at the same locations as Surface Samples, composited over the entire root strata.
Pl Root Strata Soil Samples composited from exposed grade to 1.5m and Deep Strata Soil Samples taken at the same locations as Root Samples of the top 15cm of the deep strata
~ Deep Strata Soil Samples of the top 15 cm ofthe exposed Deep Strata.
Scan Measurements:
IE]
lr l 100% Scan Coverage of Exposed Soil.
___ % Scan Coverage of Exposed Soil.
Other _______ _
Quality Record Westinghouse Non-Proprietary Class 3
Revision: 2 Page P-3 of 10 HDP-PR-FSS-701, Final Status Survey Plan Development A PPENDIX P-1 FINAL ST A TUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS
- 7. Define Derived Concentration Guideline Levels (DCGL)
- a.
Select the appropriate DCGL for each Radionuclide of Concern (ROC) based on the corresponding U-234 U-235 U-238 Tc-99 SEA and the Uniform Conceptual Site Model (CSM).
- IfTc-99 was measured during the characterization/RASS survey, then the "Measure Tc-99" DCGLs will be used from Appendix A ofHDP-PR-FSS-701.
- IfTc-99 was not measured in the characterization/RASS survey, then the modified U-235 DCGL
("Infer Tc-99") will be used from Appendix A HDP-PR-FSS-701.
Surface Strata Root Strata Deep Strata 1
Uniform (pCi/g)
(oCi/g)
(oCi/g)
(pCi/g) 508.5 235.6 872.4 195.4 20.4 7
14.5 5.8 297.6 183.3 55 1. l 168.8 151
- 30. 1 74 25.1 Th-232 + C II 7 2
5.2 2
Ra-226 t C 5
- 2. 1 5.4 1.9
- 1.
The Deep Strata DCGLs correspond to the Excavation Scenario DCGL from Appendix A of HDP-PR-FSS-701.
- 8. Calculate the Number of Samples in the Statistical Survey Population NOTE: The Statistical Survey Population is routinely derived based on the Uniform DCGL Alternatively, if the Survey Unit excavation extends into multiple CSMs (e.g. surface, root &
deep), then the DCGL(s) from the most limiting strata can be used with the equations below; OR lfthe excavation significantly extends into the deep strata, then the alternate approach presented in sec.-tion 8.2.5 of HDP-PR-FSS-701 may be used for determining the m ean SOF and weighted standard deviation that accounts for the reduced dose from the deeper surface, i.e., by weighting the Root stratwn and Excavation DCGLw values.
The values used in the following equations (SOFmcan and crsoF) can be found in the tables from Section 2b and Section 7a.
- a.
Calculate a mean SOF for the characterization/RASS survey data set.
SOF Concu.23'4 Concu-:z:u Concu_231 ConcTc-99 Concn 232 + Conc Ra-n 6 M- =
+
+
+
+
DCGLu.23'4 DCGLu-:z:u DCGLu-zi*
DCGLTc-9'1 DCGLn_232 DCGLRa_226 Lower Bound of the Grey Region (LBGR) = SOFMean = 0.37
- b.
Calculate the mean and standard deviation in the SOF for the characterization/RASS survey data set.
NOTE: For the calculation of SOFMcan and OsoF, include the concentration for Tc-99 if it was measured. If Tc-99 was not measured, include the modified U-235 DCGL and omit Tc-99 concentration term.
0 cr u - 234
+
cru - 21,
+
cr u - 238
+
crT<- 99
+
crTh-2J2
+
0Ra-2u t(
)2 (
)2 (
)2 (
)2 (
)2 (
)2) sOF -1 DCGLu-n, DCGL 0 _ 23, DCGL0 _238 DCGLT*-99 DCGLTh-zn DCGL1ta-2.z.s Quality Record Westinghouse Non-Proprietary C lass 3
Revision: 2 Page P-4 of 10 HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-1 FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS Survey Unit O"soF =
Background cr soF=
0.30
- 0. 13
,/ Used in worksheet survey design r;; I Fl
- c.
Define the Decision Errors.
Type I Error = 0.05 Type II Error = 0.10 NOTE: The Type I I Error is set at 0.10 initially but it may be adjusted with RSO concurrence.
- d.
Calculate the Relative Shift.
- e.
Relative Shift= _l _-L_B_* G_R_
O"soY Relative Shift =
- 2. 11 Is the Relative Shift between 1 and 3?
lf"Yes", then continue lo step Jf~\\1,\\\\\\~
YesW NoC If "No", then adjust the LBGR as necessary to achieve a relative shift between 1 and 3.
accomplish this, the LBGR may be set ac, low as the MDC for the analytical technique.
Adjusted LBGR =
NA Adjusted Relative Shift =
2.1 1 In order to
- f.
Determine the Number of Samples (N for the Sign test or N/2 for the WRS test) required corresponding to the Type I error, Type II Error and the Relative Shill.
lfthe Sign Test has been chosen as the statistical test, then use Appendix E ofHDP-PR-FSS-701 to detennine N.
lfthe 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 or N/2) =
I 0
- a.
NOTE:
When U-235 is reported as negative or zero and U-238 is reported as positive, set the sample enrichment to 0.71 % (natural uranium).
When U-235 is reported as positive and U-238 is reported as negative or zero, set the sample enrichment to 100% (highly enriched).Note: When both U-235 and U-238 data are reported as positive, calculate the U-238/U-235 ratio for each sample and use Appendix G ofHDP-PR-FSS-701, to determine the uranium enrichment that corresponds lo the mean U-238:U-235 ratio.
Calculate and record the average Uranium enrichment for the survey unit using the enrichment calculated for each individual sample.
Average Enrichment(%) __
4_.2_8 __
The Activity Fractions (/)for each radionuclide that corresponds to the mean enrichment in the following calculations is obtained from Appendix G ofHDP-PR-FSS-701.
If the Uniform DCGL is not used, and the excavation extends into multiple CS Ms (e.g. surface, Quality Record Westinghouse Non-Proprietary Class 3
Revision: 2 HDP-PR-FSS-701, Fina.I Status Survey Plan Development APPENDIX P-1 Page P-5 of 10 FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS root & deep), then the most conservative DCGLs should be used in the following calculation.
b.
Calculate a DCGLw for Total Uranium DCGL.,.,,,.u f u-u,.
+
f u-m
+
f u - 238 DCGLu_,,.
DCGLu-cm DCGLu-m DCGLwTo1.U for Total Uranium =
79.2 pCi/g
- c.
Identify the Radiological Instrument that will be used for scanning.
w 2"x 2" NaI Detector F
FIDLER Nal Detector
[F Other ___ ___ _
- d.
Calculate the Scan MDC for the selected instrument NOTE: 2x2 Sodium Iodide (with surveyor efficiency factor of0.5 and a background count rate of J 0,000 cpm).
If the instrument is not a 2"x 2" NaI detector, or if the background count rate exceeds 10,000 cpm, the MDCsca1 can be determined in accordance with DP Ch. 14, section 14.4.4.2.9 (Reference 5.1) ofHDP-PR-FSS-701.
ScanM:I:X:
fu-n.
+
f u-2n
+ _ f._u-2J_a_
7383pCi l g 4.9pCi lg 62.8pCilg MDCscwo for Total Uranium =
85.5 pCi/g
- a.
Select the appropriate DCGL.v for Th-232 and Ra-226 corresponding to the soil strata that will be exposed at the time of FSS and the SEA where the survey unit is located.
2 Th-232 DCGL.v =
pCi/g Ra-226 DCGLw =
1.9 pCi/g NOTE: If the Uniform DCGL is not used, and the excavation extends into multiple CSMs (e.g. surface, root &
deep), then the most conservative DCGL for the strata should be used. With RSO concurrence, the alternate approach as presented in DP Ch. 14, section 14.4.3.1.10 (Reference 5.1) ofHDP-PR-FSS-701 may be used in lieu of using the most conservative.
- b.
Identify the Radiological Instrument that will be used for scanning.
~
2"x 2" NaI Detector IC_
FIDLER NaI Detector IC_ Other _ _____ _
- c.
Calculate the Scan MDC for the selected instrument Note: Table 6.4 ofNUREG-1507 (Reference 5.8) ofHDP-PR-FSS-701 has calculated an MDCscan of 1.8 pCi/g for Th-232 and 2.8 pCi/g for Ra-226 when using a 2"x 2" NaI detector.
Note: If the selected instrument is not a 2"x 2" Nal detector, then the MDCscan can be determined in accordance with DP Ch. 14, section 14.4.4.2.9 (Reference 5.1) ofHDP-PR-FSS-701.
1.8 pCi/g MDCscan for Ra-226 =
2.8 pCi/g NOTE: Ifa value is not applicable, mark as NIA.
Quality Record Westinghouse Non-Proprietary Class 3
Revision: 2 HDP-PR-FSS-701, Final Status Survey Plan Development A PPENDIX P-1 Page P-6 of 10 FINAL ST A TUS SURV EY SAMPLING PLAN FOR SOIL SURVEY UNITS
- 11. Adjust the Statistical Sample Population Size (N or N/2) for Scan MDC
- a.
If the survey unit is either C lass 2 or 3, then proceed to st ep 12.
- b.
Divide the total area of the survey unit by the Number of Samples (Nor N/2) calculated in step 8fto calculate the area bounded by the statistical sample population.
Area Bounded by the Statistical Sample Population (Asu) =
11.1 m
2 URANIUM
- c.
Is the Scan MDC for the selected instrument less than the DCGLw that was calculated for Total Uranium? (compare values from step 9b and 9d)
Yes[C No~J (If yes proceed to step 11 k)
- d.
Using the Area Factors in Appendix Hof HDP-PR-FSS-701, calculate a Total Uranium AF for each listed area using the Activity Fractions (/) for each radionuclide that corresponds to the mean enrichment from Appendix G ofHDP-PR-FSS-701.
A~~
I DCGL x (
/u.'IJ4
/u.m
+
/u.m
)
-.1..u APu 'D4 x DC0£...u,,.
APu.n, x DCOL.,u m A Pu 211 x DCOL *. u.211 Area (m2) 153375 10000 3000 1000 300 100 30 10 3
I AFTota1U 1.00
- 1. 13
- 1. 17
- 1. 17 2.34 3.37 4.68 6.76 13.83 29.27 NOTE: The AFs for the Uniform strata will generally be used. The RSO may approve use of /\\Fs from the Surface, Root or Deep CS Ms, or the Excavation Scenario.
- e.
Find the Area Factor (AFTotaJu) calculated in the previous step th.at corresponds to the area bounded by the Statistical Sample Population (Asu ).
AFTotU for the Bounded Area (Asu) =
6.6
- f.
Multiply the DCGLw calculated for Total Uranium by the Area Factor (AFTotU) to derive a DCGLEMC for Total Uranium.
- g.
- h.
- i.
DCGLr::Mc for Total Uranium =
525.2 1 pCi/g Is the MDCscan for the selected instrument less than the DCG4Mc that was calculated for Total Uranium?
NACJ Yes~ No~
(If"Yes" then proceed to step llk.)
Calculate a new AF (AFEMC) corresponding to the M DCscan for the selected in strument by dividing the MDCscan by the OCGLw.
AFEMC for Utotal =
NA Find the Area (A' ) that corresponds to the Area Factor (AFEMc).
A ' for U~tal =
NA Quality Record Westinghouse Non-Proprietary C lass 3
Revision: 2 Page P-7 of 10 HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-1 FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS J.
Calculate an Adjusted Number of Samples (NEMc) for the Statistical San1ple Population size that corresponds to the bounded AEMC*
Asu NE.MC=--
A' Na,ic corresponding to A' for Utotal =
NA THORIUM-232
- k.
ls the MDCscan for Th-232 less than tJ1e DCGLw ?
(If "Yes" then proceed to step l lr)
Yes~ No~
- l.
Find ilie Area Factor (AF) in Appendix H that corresponds to ilie area bounded by the Statistical Sample Population (A511).
AFTo.232 for the Bounded Area (Asu)
NA m. Multiply the DCGLw for Th-232 by the Area Factor (AF) to derive a DCGLEMc for Th-232 DCGLEMC for Th-232 =
NA pCi/g
- n.
Is the MDCscan for Th-232 less than the DCGLEMc that was calculated for Th-232?
NAE, Yes[_, No[_,
(If"Yes" ilien proceed to step l lr)
- o.
Calculate a new AF (AFEMd corresponding to the MDCscan for the selected instrument by dividing the MDCscan by the DCG Lw.
AFEMC for Th-232 =
NA
- p.
Find the Arca (A' ) that corresponds to the Area Factor (AFEMC)-
A' for Th-232 =
NA NOTE: The Area Factors for Th-232 can be found in Appendix H ofHDP-PR-FSS-701.
- q.
Calculate an Adjusted Number of Samples (NEMC) for the Statistical Sample Population size that corresponds to the bounded AEMC*
Asu N
=--
EMC A'
N'c corresponding to A ' for Th-232 =
NA RADIUM-226
- r.
Is the MDCscan for Ra-226 less than the DCGLw ?
(If "Yes" then proceed to step 12)
YesCJ No~
- s.
Find the Area Factor (AF) in Appendix II that corresponds to the area bounded by the Statistical Sample Population (Asu).
AFRa.226 for the Bounded Area (Asu) =
8.91 Quality Record Westinghouse Non-Proprietary Class 3
Revision: 2 HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-1 Page P-8 of 10 FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS
- t.
Multiply the DCGLw for Ra-226 by the Area Factor (AF) to derive a DCGLE:Mc for Ra-226 DCGLEMC for Ra-226 =
16.93
- u.
ls the MDC.scan for Ra-226 less than the DCGLEMC that was calculated for Ra-226?
NJ\\["r YesW No[r (If "Yes" then proceed to step 12)
- v.
Calculate a new AF (AFEMc) corresponding to the MDCscan for the selected instrument by dividing the MDCscan by the DCGLw AFEMC for Ra-226 =
NA
- w. Find the Area (A' ) that corresponds to the Area Factor (AFEMc).
A ' for Ra-226 =
NA
- x.
Calculate an Adjusted Number of Samples (NEMC) for the Statistical Sample Population size that corresponds to the bounded Ai;Mc-A su NEMC =--
A' NEMc corresponding to A' for Ra-226 NA
- 12. Calculate the Grid Spacing
- a.
Larger of N from step 8f and the maximum value ofNEMC from l lj, llq or llx.
CNEMc[max] or N) =
10
- b.
ls the Survey Unit a Class 3 Survey Unit?
(If "Yes", then continue to step 13)
Yes[r Nol9
- c.
Calculate Grid Spacing (L).
1 W : Triangular Grid L =
Area
.866(N or N/2)
Cc: Square Grid L =
Area (Nor N/2)
Grid Spacing (L) for Survey Unit =
3.57
- 13. Generdte a 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 system in accordance with step 8.2.10 of HDP-PR-FSS-701.
- c.
Using the reference coordinate system, ascertain coordinates for each sample location.
m
- d.
Designate sample locations, 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% of the Statistical Sample Population as QC Samples in accordance with Quality Record Westinghouse Non-Proprietary Class 3
Revision: 2 Page P-9 of 10 HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-1 FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS HDP-PR-FSS-703, Final Status Survey Quality Control (Reference.S.9) of HDP-PR-FSS-701.
- b.
Designate QC sample locations, and location coordinates 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 t.akjng them. Necessary biased samples will he explained on Appendix P-3, FSS Sample Instructions.
- d.
Using the reference coordinate system, detennine 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:
Class l c_ Class 2 F Class 3
- b.
Based on the Survey Unit Classification, the scan coverage in this Survey Unit is;
~
100% Scan Coverage of exposed soil IF
% Scan Coverage of exposed soil
- c.
Designate any specific scan locations as detcnnined necessary, on Appendix P-3, FSS Sample instructions and at1ach a copy of that form to this FSSP.
16.InvestigationLevels
- a.
The Survey Unit is:
c_ Class 3
- 1) Scan Investigation Levels are set at:
NA cpm Sample Investigation I.cvels are set at.SO% of the DCGLw when expressed as the SOF.
- b.
The Survey Unit is: IF Class 2
- 2) Scan Investigation Levels are set at:
NA cpm Sample Investigation Levels are set at the DCGLw when expressed as the SOF.
- c.
The Survey Unit is:
~ Class 1
- 3) Scan Investigation Levels are set at:
9289 cpm Sample Investigation Levels are set at the DCGLw when expressed as the SOF.
- 17. Survey Instructions and Sample Measurement Locations and Coordinates FSSP Approval Attach a copy of completed fonns as appropriate:
Appendix P-3, FSS Survey Sample Instructions, W Appendix P-4, FSS Sample Measurement Locations & Coordinates c_ Appendix P-.S, FSS Unit Classification Change Form r;; Appendix P-6, FSS Field Log W Survey Unit Figure c_ Other:
Quality Record Westinghouse Non-Proprietary Class 3
Revision: 2 HDP-Pn-FSS-701, Final Status Survey Plan Development APPENDIX P-1 Page P-10 of 10 FINAL STATUS SU RVEY SAMPLING PLAN FOR SOIL SURVEY UNITS
- 18. FSSP Approval Prepared by :
Peer Reviewed by :
Approved by (RSO):
QuaJity Record A1 i cl..tt\\i 'orts~
~acJ. (PriJJtevect ~
~~
(Pr~ Nam_ c_) --
'e/j,rint Name)
Westinghouse on-Proprietary Class 3 (Dru c)
C -, -- G (Dale)
ATIACHMENT to FSS Survey Plan for LSAl0-08 Berm Removal & Installation in NE Corner of LSAl0-02 Appendix P-1 Section 3. Define the Survey Unit Classification Survey Unit LSAl0-08 was created to support the total remediation of LSAl0-02 (portion of the north burial pit). The northeast portion of LSA l 0-02 which consists of bermed soils that divert the Oow of the creek east of the burial pit will become its own survey unit, LSA 10-08.
In order to complete remediation, the existing berm must be excavated, characterized, and replaced as expeditiously as possible to prevent the creek from flowing into the remediated portions of the north burial pit.
The engineer planning the excavation and instaJJation of the new berm estimates the footprint to be approximately 900-sq. ft (83.6-m2), with approximate length of 45-ft and approximate width of 20-ft. Based on experience performing excavations and remediation, Radiological Engineering added additional surface area around the estimated extent of excavation to accommodate for installation of a bladder dam, movement of heavy equipment, foot traffic of support personnel and heavy equipment, and the load-out/load-in of soils.
The total estimated surface area for LSAl0-08 is 108.l-m2 (orl,164-ft2). lt will be located in the northeast comer of the north burial pit and will be bordered by the current western edge of the creek. These locations are pre-excavation approximations - based on extensive walk downs with engineering, excavation supervisors, the Project Field Superintendent, subcontractor SMEs, and multiple GPS measurements. Radiological Engineering compiled this information to best determine what the final extent of excavations will be.
In order to accurately finalize the surface area ofLSAl0-08, additional GPS measurements will be performed immediately after the existing berm has been removed and prior to the installation of the new berm. Once this "extent-of-excavation" has been established and measured, FSS Technicians will enter the area to perform characterization using GWS, statistical analysis of the GWS measurements, and soil sampling (systematic & biased).
After this review, the soil samples will be sent off-site for analysis. To minimize the potential for impact from rain events to the north burial pit, the new berm will be installed after the on-site analysis by gamma spectroscopy and data review. While Tc-99 results will not be avai !able, process knowledge the history of this area show very low potential for the presence of Tc-99.
This unit was created within a Class I area, and will also be a Class 1 survey unit.
_J
Sample ID U-234 SS-BP-011-SF 6.88 SS-BP-012-DV 12.71 SS-BP-014-DV 35.48 SS-BP-024-DV 15.82 SS-BP-024-SV 67.59 NB-89-4.5-SL 1.52 Average Appendix P-1 HDP-PR-FSS-701 U-235 U-238 0.38 1.43 0.68 0.90 1.95 9.90 0.84 8.20 3.72 9.30 0.07 2.00 Quality Record U-238/U-235 Ratio Enrichment 3.76 4.00 1.32 10.60 5.08 3.00 9.76 1.60 2.50 5.90 28.57 0.60 4.28
nun
-0 23
-0 57 007 090 I 52 0 32 ma.,
0 18 D 04 Jn 990 67 59 13-80 mean
-005
-0 25 I 27 S 29 23 33 3 48 median
-003
-024 076 5 10 14 27 I 02 st de\\*
- 0. 15 0.21 I 36 J 26 24 58 5 27 6
ffil h!UI wilh Rl(kground AdiUStnH:oJ)
~ Mill.
I!!ill
.L!fil 1/l,ll
~ !i.:22 SS-BP-011-SF
.o 14
-0 57 0.38 143 6 88 0.78 SS-BP-012-0V
-0.0J
-0. 10 068 0 90 12 7 1 126 SS-OP--014-DV
-023
-0 25 I 95 9.90 35 48 041 SS-BP-024-DV
-002 004 0.84 8 20 15K2 4.29 SS-AP4l24-SV 0 18
-0 23 3 72 9 ]O 67.59 13.80 1"8-89-4 5-SL
-0 39 007 2 00 l 52 032 Printed. 8/1/20138.19,w, FSS Calculaoon Sheet SEA (bunal pit)
Zone u
Infer T<:99
)CS DCGLw um Il!ill
!.!.ill l.!.ill.
1.9 2
58 168 8 Av*Conc RA226 nm
!.!ill.
rm U 00 0.00 I 27 5 29 SOF Mlli Th232
~
!.!.ill.
000 000 0 22 0.03 1..!!.!,.R 1 0 37
,R, Jo,;,.* Shift I 2 1070
.l!ll!
!i.:22 Mm Ihfil 195.4 25 I 0 15 0.21
.\\!:b!!
IS:!!
Mill Th2J2 23 33 348 0 0~
0 II
.l!ll!
!i.:22 0 12 0 14 SI I 0 30 Jtdn J.!.ill filJll 1.36 J 26 stdtv / SOF JJ.m
!im 0 23 0 03 LSA10-08 RASS Data Analysis
!ilH
~
24 58 5.27 J.!.lli
!12!
0 13 0 21 WoiwSl'liNI VtrtlOl'I 2 0 P~1of 1
Revision: 2 Page P-1 of 4 Survey Arca:
Survey Unit:
Comments:
HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-3 10 08
==
Description:==
==
Description:==
REVJSON 1: 8/1 /2013 FSS SAMPLE INSTRUCTIONS Burial Pits Open Land Area NE Corner of LSA I 0-02 (Benn)
The survey unit is classified as MARSS1M Class I and is a small portion of what was formerly the northeast cover of LSA I 0-02. This is a new survey unit that arose from the need to complete the full remediation of LSA 10-02 by removal of the earthen benn that diverts the creek running north-south along the eastern border of the north burial pits.
The engineer planning the excavation and installation of the new berm estimates the footprint to be approximately 900-sq. ft (83.6-m2), with approximate length of 45-ft and approximate width of 20-ft. Based on experience performing excavations and remediation, Radiological Engineering added additional surface area around the estimated extent of excavation to accommodate for installation of a bladder dam, movement of heavy equipment, foot traffic of support personnel and heavy equipment, and the load-out/load-in of soils.
The total estimated surface area for LSA I 0-08 was 108. l-m2 (or I, l64-ft2). After excavation, the final surface area is 1 12. 7-m2. As previously stated, this survey unit will be located in the northeast corner of what is currently LSA I 0-02 and its western border will run along what is now the current western edge of the creek. These locations are pre-excavation approximations - based on extensive walk downs with engineering, excavation supervisors, the Project Field Superintendent, subcontractor SM Es, and multiple GPS measurements.
Radiological Engineering compiled this information to best determine what the final extent of excavations wi 11 be.
In order to accurately finalize the surface area of LSA 10-08, additional GPS measurements wi ll be performed immediately after the existing berm has been removed and prior to the installation of the new berm. Once this "extent-of-excavation" has been establ ished and measured, FSS Technicians wi ll enter the area to perform characterization using GWS, statistical analysis of the GWS measurements, and soil sampling (systematic & biased).
After this review, the soil samples wi ll be sent off-site for analysis. To minimize the potential for impact from rain events to LSA I 0-02, the new berm wi II be installed after the on-site analysis by gamma spectroscopy and data review. While Tc-99 results will not be available, process knowledge of the history of this area show very low potential for the presence of Tc-99.
END OF COMMENTS Quality Record Westinghouse Non-Proprietary C lass 3
Revision: 2 Page P-2 of 4 HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-3 FSS SAMPLE INSTRUCTIONS Gamma Walkover Survey (GWS):
Scan Coverage I 00% accessible excavation noors and walls Scan MDC 85.5 pCi/g Total Uranium ( 1,5 12 ncpm) 9,289 net cpm*
Investigation Action Level (IAL)
- magnitude of lAL is due to small survey unit size, a more restrictive JAL of 4,000 ncpm will be used.
Systematic Sampling Locations:
Depth Number of Sample Comments 0
15 cm 0
These samples will be taken on a 15 cm 1.5 m 5
systematic grid that will be developed upon completion of the excavation of
> I.Sm 10 the current berm.
Biased Survev/Samoline: Locations:
Biased samples may be collected during Gamma Walkover Surveys (at the discretion of the I IP Technician), after statistical analysis of the survey data, or at the direction of Radiological Engineering.
instrumentation Used for gamma walkover survey and to obtain Ludlum 2221 with 44-10 (2x2 Nal) detector static count rates al biased measurement locations.
General Instructions:
I.
Summarize daily work act1v1t1es 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. ln the event that a situation arises where the survey instructions cannot be followed as written, stop work and contact Radiological Engineering (or RSO) for resolution. All changes to the survey instructions shall be approved by Radiological Engineering (or RSO) before continuing work and be documented by the GWS Technician (or Radiological Engineer) in the FSS f ield Log.
- 2.
This is a Class 1 Survey Unit. Class I units are gridded to identify the systematic sampling locations. Each sample location will have associated GPS coordinates specified. In the case of inaccessible sampling locations additional pairs of random sample coordinates may be generated with the RSO or his designee's approval in order to identify an acceptable sampling location.
- 3.
A map of the survey unit showing predetermined sample locations with associated GPS coordinates will be generated alter the extent of excavation for the current earthen berm has been completed and the GPS coordinates have been established. A copy of the sample map and survey locations will be attached to the survey instrnction after the final extent of excavation has been established.
- 4.
Verify that isolation controls established in accordance with HDP-PR-HP-602 are in place prior to the start of FSS.
Qua I it:y Record Westinghouse Non-Proprietary Class 3
Revision: 2 HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-3 FSS SAMPLE INSTRUCTIONS
- 5.
Perform daily pre and post QC source checks in accordance with HDP-PR-HP-4 16.
Page P-3 of 4
- 6.
Additional sampling may be required, based on results of the GWS, or as determined by Radiological Engineering.
- 7.
Sample locations will be established after the full extent of excavation has been completed.
At each systematic soil sampling location a composite soil sample will be collected from each location and depth as detcnnined after the completion of excavation (and will be provided in Appendix P-4). The systematic sample locations will include O (zero) samples taken at a depth of O - 15 cm (surface) and 5 (five) samples collected at a depth of 15 cm - 1.5 m (root) and 10 (ten) samples collected at a depth of 1.5 m to 1.65 m (deep).
- 8.
Biased soil sampling locations may be detennined 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 wi ll be collected in a manner similar to systematic soil sampling locations. Radiological Engineer and/or the I IP Technician will log the reason for collection of biased samples in the Survey Instruction log sheet and record the location of biased samples on Appendix P-4 of this survey instruction.
Specific Instructions:
Gamma Walkover Surveys (GWS)
I.
Perfonn a gamma walkover of the survey unit holding the probe as close to the surface as possible, in accordance with HDP-PR-HP-711. A GPS system and data logging should be interfaced with the meter whenever possible. If a GPS system is not available, contact Radiological Engineering.
- 2.
Move at a speed of 1-foot per second or less. Swing the survey probe in a serpentine pattern with a swing radius approximately "shoulder-to-shoulder" (i.e., approx. 9-in on either side of the centerline). The GWS will cover all accessible surface areas with the survey unit or a specific region of interest (ROI).
- 3.
Look and/or listen for locations that exhibit anomalous readings (e.g., count rates in excess of the area background count rate and/or count rates that exceed the IA L for this unit).
- 4.
Mark the location(s) exhibiting anomalous readings and ensure the location is logged to facilitate future investigations (for example, use a tlag, stake, or other marking resistant to anticipated environmental conditions).
Paint may be used to temporarily mark the area in lieu of immediately placing a flag/stake/etc.
- 5.
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 (Appendix P-6).
NOTE: If field conditions limit the ability lo pcrfonn contact readings, collect readings as close as practical and log the issue for each location in the rss Field Log and applicable survey forms. Contact Radiological Engineering (or RSO) regarding the issue for each location.
- 6.
GPS (and associated data logger) is the preferred method for performing G WS.
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 lAL and send the survey data to Radiological Engineering.
- b.
Radiological Engineering: Provide statistical analysis to determine population characteristics of the survey data set and identify any areas requiring additional surveys or sampling. Contact IIP 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 detem,ine 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 Q ua] ity Record Westinghouse Non-Proprietary Class 3
Revision: 2 throughout the shift.
HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-3 FSS SAMPLE INSTRUCTIONS Sampling Page P-4 of 4 I.
Collect soil samples in accordance with HOP-PR-I IP-7 1 I al locations identified in LSA I 0-08 afler the extent of excavation has been established and the GPS coordinates have been provided. Note that additional biased sampling locations may also be listed as determined by the GWS or as detennined 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.
- 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 (or HP Supervision) on the results obtained from monitoring the locations of biased sampling to receive instrnctions for further investigation or the need for additional excavation.
- 5.
Obtain and record the count rate on contact with features other than so il within the excavation. (e.g., native rock).
Record the nature and extent of features other than so il found within the excavation in the FSS Survey Log and contact Radiological Engineering (or RSO) to determine addit ional characterization methods, if necessary.
- 6.
All samples collected as part of this survey will be analyzed at an off-site laboratory by gamma spectroscopy for uranium and gamma emitting radionuclide (Th-232, Am-24 1, etc.), and for Tc-99 by liquid scintillation counting or ICPMS.
- 7.
Submit samples for analysis following sample chain of custody requirements contained in H DP-PR-QA-006.
Prepared by:
Peer Reviewed by:
Approved by (RSO):
Quality Record v1/l;l,L,lfe o~s~ ~
(Print Name)
(Signature)
/
i ac K /iJe ~
(Print Name)
I bv rt?J C I JO ~,7/)
(Pfint Name)
(Si~ature)
Westinghouse Non-Proprietary Class 3 toJt/,~
(Date) f-I.J.
(Date) g,/-13 (Date)
Revision: 2 Page P-1 of I HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-4 FSS SAMPLE & MEASUREMENT LOCATIONS & COORDINATES Survey Area:
No.
LSA I 0
==
Description:==
Burial Pits Open Land Area Survey Unit:
No.
08
==
Description:==
NE Comer ofLSA J 0-02 (Berm)
S T
urvcv vpe: s *1 s r
01 amp mg Cl "fi ass1 1cahon:
Measurement Surface Type Start Depth End Depth Easting Northing or Sample ID orCSM (feet)
(feet)
(X Axis)*
(Y Axis)*
L100801BRSOO Root s
0 2.5 827409.7 865391.0 L100802BESOO Deep s
2.5 3
827409.7 865391.0 L100803BESOO Deep s
0 o.s 827412.8 865379.4 L100804BRSOO Root s
0 1.5 827421.3 865387.9 L100805BESOO Deep s
1.5 2
827421.3 865387.9 L100806BESOO Deep s
0 0.5 827424.4 865376.3 Ll00807BRSOO Root s
0 4.5 827432.9 865384.8 Ll00807BRQOO Root Q
0 4.5 827432.9 865384.8 L100808BESOO Deep s
4.5 5
827432.9 865384.8 Ll00809BESOO Deep s
0 0.5 827427.5 865364.7 L100810BESOO Deep s
0 0.5 827436.0 865373.2 Ll00811BRSOO Root s
0 3.5 827444.5 865381.7 Ll00812BESOO Deep s
3.5 4
827444.5 865381.7 L100813BESOO Deep s
0 0.5 827447.6 865370.1 L100814BRSOO Root s
0 2.5 827456.1 865378.6 L100815BESOO Deep s
2.5 3
827456.1 865378.6
- Distance in feet from southwest corner of the surface.
Surface:
Floor = F, Wall = W, Ceiling = C, Roof - R CSM; Surface, Root, Deep or Unifonn Type:
Systematic = S, QC = Q, Diased = B, Investigation = I Quality Record Westinghouse Non-Proprietary Class 3
LSA-10-02 LSA-11-01 Li00804BRS00 LI 00805BES00 LI00807BRSOO Ll00808BESOOi--.._---------.... -------1 Ll00807BRQOO LI 00806BESOO LSA-10-08 LI 00811 BRSOO Li00812BES00 L1008 l4BRSOO Li00815BES00 Li008IOBES00 L100813BESOO LEGEND:
Sample Locations D LSA Boundary C]LSA-10-08
[_J Burial Pit Area 0Haul Road 0Culvert Surface Water 0
Diversion N
~
WWE s
0 10 Feet Requested By:
Documcou'Reason:
M Bresoahan Final Status Survey LSA-10-08 FSS Sampling Locations Hematite Decommissioning Project Jefferson County Hematite, MO Prepared By:
Rev:
DJH I
Size:
8.5xll Date 08~1-13
LSA-10-02 LSA-10-0S 110.5 m2
~
LSA-11--0I LEGEND:
LSAC D
omerPoint LSA Bound o,LSA-10-08 a,y
[ __ J Bunal Pit A D
rea Haul Road D
euivert Surface Water 0
Diversion N w**.
. E s
0 Document/R Final S cason:
tatus Survey LSA-10-08 r----~B-oundary Hematite D
~-:------ I ecomm1ssionin Jefferson Co g ProJect H
unty ematite, MO Prepared By.
Rev:
Size*
8.5xl I Date:
08-01-13