ML18010A276
| ML18010A276 | |
| Person / Time | |
|---|---|
| Site: | 07000036 (SNM-0033) |
| Issue date: | 09/18/2013 |
| From: | Bresnahan M Westinghouse |
| To: | Office of Nuclear Material Safety and Safeguards |
| Shared Package | |
| ML18010A247 | List:
|
| References | |
| HEM-17-72 | |
| Download: ML18010A276 (19) | |
Text
0 2013 Westinghouse Electric Company LLC. All Rights Reserved.
8 Westinghouse Hematite Decommissioning Project NUMBER:
HDP-INST-FSS-LSAl0-09 TITLE:
Final Status Survey Plan and Instructions for Survey Area & Unit: LSA 10-09
("VOC Pit" in LSA 10-06)
REVISION:
0 EFFECTIVE DATE:
September 18, 2013 Approvals:
Author:
Michelle E. Bresnahan Owner:
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-10 Survey Unit:
9
==
Description:==
Btuial Pits Open Land Area
==
Description:==
VOC Pit in LSA I 0-06
- 1. Verify Survey Unit Isolation & Control
- a.
Survey Unit properly isolated and/or controlled (indicat.ed 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?
Yes1;7J No!:]
(If"No", discontinue survey design until area twnover requirements have been met.)
- 2. Evaluate Final Remedial Action Support Survey (RASS) Data
- a.
Number of RASS Samples:
5
- b.
Record analytical results and summary statistics for each RASS sample U-234 U-235 U-238 Tc-99 To-232 Ra-226 (oCi/e:)
(pCi/g)
(pCi/e:)
(pCi/e:)
(pCi/e:)
(pCi/g)
Minimum
< MDA
< MDA
< MDA NR
- 1. 43E- 01 9. 91E- 02 Maximum S.75E+OO 1. 77E-01 2.27E+OO NR 1.12E- 01 4. 62E- 01 Mean 3. SSE+OO
- 1. 23E- 01
- 8. 41E-01 NR
- 4. 41E- 02 2.32E-01 Median 4. lSE+OO 1.45E- 01
< MDA NR
- 1. lSE-01 2. 07E- 01 Standard 2. 1 9E+OO 7.13E- 02 1. 1 6E+OO NR
- 1. 19E- 01
- 1. 36E-01 Deviation
- c.
Are all RASS results less, or equal to the appropriate OCGLw?
- d.
If"No", have remaining locations of elevated concentration been evaluated?
(If No", discontinue survey design until investigation is complete.)
Yes~ No[F]
NIA~ Yese] Nor]
- e.
Have elevated areas identified by gamma walkover surveys been investigated?
Yes~ No 0 (If No", then temunate 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]
(If No", 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:
LSA I 0-09 is a srm.ll pit contaminated with VOCs within the fuotprint ofLSA I 0-06. Reirediation of this area was perfonned to an acceptable extent (groundwater was reached) before di<;continuing.
Classification:
Survey Unit Area (m2):
140
- a.
Has the Classification changed from the Initial Classific.ation as indicated in DP Ch. 14? YeslO No~
(IfYes", 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 ATOS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS
- b.
Is the Survey Unit area less than the maximum size for the Classification?
YesW] No[F]
(If No", then terminate swvey design and evaluate dividing the swvey unit into multiple survey units.)
- 4. Define the SUJTOgate 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 W°1
- 5. Define Final Survey Unit Conditions ID No Excavations, Paved/Partially Paved or Excavated but not Backfilled
!Pl Excavated and to be Backfilled l!J 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 structural Survey Unit 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 final 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.
IF Root Strata Soil Samples composited from 15cm to 1.5m.
Note: If the 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 Core through backfill 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 remaining surface soil strata and Root Strata Soil Samples taken at the same locations as Surface Samples, composited over the entire root strata.
r] 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 W] Deep Strata Soil Samples of the top 15 cm of the exposed Deep Strata.
Scan Measurements:
IE]
lr l 1000/o Scan Coverage of Exposed Soil.
___ % Scan Coverage of Exposed Soil.
Other --------
Quality Record Westinghouse Non-Proprietary Class 3
Revision: 2 HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-1 Page P-3 of 10 FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS
- 7. Deftne Derived Concentration Guideline Levels (DCGL)
- a.
Select the appropriate DCGL for each Radionuclide of Concern (ROC) based on the corresponding 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 foCi/e:)
(oCi/e:)
(oCi/g)
(oCi/e:)
508.5 235.6 872.4 195.4 20.4 7
14.5 5.8 297 6 183.3 551. l 168.8 151 30.1 74 25.1 Th-232 + C 4.7 2
5.2 2
Ra-226 + C 5
2.1 5.4 1.9
- 1.
The Deep Strata DCG-Ls correspond to the Excavation Scenario DCGL from Appendix A of HDP-PR-FSS--701.
NOTE: The Uniform DCGL will be used to calculated the number of samples in the statistical survey population.
- 8. Calculate the Number of Samples in the Statistical Survey Population NOTE: The Statistical Survey Population is routinely derived based on the Uniform DCGL Ahernatively, iftbe 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 If the excavation significantly extends into the deep strata, then the alternate approach presented in section 8.2.5 ofHDP-PR-FSS-701 may be used for detenruning the mean SOF and weighted standard deviation that accounts for the reduced dose from the deeper surf ace, i.e., by weighting the Root stratum and Excavation DCGLw values.
The values used in the following equations (SOFmean 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.
SOFw- = Conc0 *234 + Conc0 _235 + Cono0 _238 + ConcTc-99 + Conc1h_232 + ConcRa-:zu DCGL0 *234 DCGL0 _235 DCGL0 _231 DCGLTc-99 DCGLn,_232 DCGLRa-2:26 Lower Bound of the Grey Region (LBGR) = SOFMcan = 0.17
- b.
Calculate the mean and standard deviation in the SOF for the cbaracterization/RASS survey data set.
NOTE: For the calculation of SOFMean and Osop, 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 11-234
+
cr u-2Js
+
O u - 233
+
crTc-951
+
crTh-232
+
crRa-226
(
J2 (
J2 (
J2 (
J2 (
Jz (
J2)
SOF -
, OCGL 11_234 DCGL11_235 DCGL11_238 OCGL Tc-5'51 DCGLTh-2l2 OCGLRa-Z26 Quality Record Westinghouse Non-Proprietary Class 3
Revision: 2 HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-1 Page P-4 of 10 FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS Survey Unit OsoF =
Background crsop=
0.09 0.13
,/ Used in worksheet survey design Fl WI
- c.
Define the Decision Errors.
Type I Error = 0.05 Type II Error = 0.10 NOTE: The Type 11 Error is set at 0.10 initially but it may be adjusted with RSO concurrence.
- d.
Calculate the Relative Shift.
R la.
Shift 1-LBGR e tive
=---
Relative Shift =
6.25
- e.
Is the Relative Shift between 1 and 3?
Yes[F Now' If"Yes", then continue to step lOf.
If "No", then adjust the LBGR as necessary to achieve a relative shift between 1 and 3. In order to accomplish this, the LBGR may be set as low as the MDC for the analytical technique.
Adjusted LBGR =
0.3 Adjusted Relative Shift =
5.38
- 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 11 Error and the Relative Shift.
If the Sign Test has been chosen as the statistical test, then use Appendix E of HDP-PR-FSS-701 to determine N.
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 or N/2) =
7
- 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 to 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(%) _ _ 7_7_._88 __
The Activity Fractions ( f) for each radionuclide that corresponds to the mean enrichment in the following calculations 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, Quality Record Westinghouse Non-Proprietary Class 3
Revision: 2 HDP-PR-FSS-701, Final 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 1
DCGL,.,,.,.u=~~~~~~~~~~~~
fu-234
+
fu-2!JS
+
f u-231 DCGLu-=
DCGLu-r,s DCGLu_,,.
DCGLwTotu for Total Uranium =
93.5 pCi/g
- c.
Identify the Radiological Instrument that will be used for scanning.
W 2"x 2" Nal Detector F
FIDLER Nal Detector
[r Other ___
- d.
Calculate the Scan MDC for the sele.cted instrument NOTE: 2x2 Sodium Iodide (with surveyor efficiency factor of0.5 and a background cowit rate of 10,000 cpm).
If the instrument is not a 2"x 2" Nal detector, or if the background count rate exceeds 10,000 cpm, the MDCsao can be detennined in accordance with DP Ch. 14, section 14.4.4.2.9 (Reference 5.1) ofHDP-PR-FSS-701.
fu-234
+
fu-2:,s
+
f u-238 1383pCilg 4.9pCilg 62.8pCilg MDCsan for Total Uranium =
142.5 pCi/g
- a.
Select the appropriate DCGLw 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.
Th-232 DCGLw =
2 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 DCG L 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" Nal Detector IC.
FIDLER Nal 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" Nal 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.
2.8 pCi/g NOTE: If a value is not applicable, mark as N/ A Quality Record Westinghouse Non-Proprietary Class 3
Revision: 2 HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-1 Page P-6 of 10 FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS
- 11. Adjust the Statistical Sample Population Size (N or N/2) for Scan MDC
- a.
Jfthe 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 8fto calculate the area bounded by the statistical sample population.
Area Bounded by the Statistical Sample Population (Asu) =
20.0 m2 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)
Yesl.C_ No~
(If yes proceed to step l lk)
- 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 of HDP-PR-FSS-701.
Aflr<<o =
I DCOJ..
x (
/u.n,.
+
fu.m
+
fu.a
)
.r..u AP.,.,,. X DCGL.,u.n,.
Aflu,m X ocai..,.,.lJS AF.,,a X DCOJ....11.,,.
Area(m")
153375 10000 3000 1000 300 100 30 10 3
1 AFTctaJU 1.00 1.14 1.18 l.18 2.51 3.78 5.36 7.82 15.98 33.66 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 (AFTctaJU) calculated in the previous step that corresponds to the area bounded by the Statistical Sample Population (Asu ).
AFT<llU for the Bounded Area (Asu ) =
6.5
- f.
Multiply the DCGLw calculated for Total Uranium by the Area Factor (AFTotU) to derive a DCGLsMc for Total Uranium.
- g.
DCGLEMc for Total Uranium =
605.87 pCi/g Is the MI>Cscan for the selected instrument less than the DCG1£Mc that was calculated for Total Uranium?
NACj Yes~
(If "Yes then proceed to step llk.)
No!:]
- h.
Calculate a new AF (AFEMC) corresponding to the MI>Cscan for the selected instrument by dividing the MDCscan by the DCGLw.
AFEMc for Utotal =
NA
- 1.
Find the Area (A' ) that corresponds to the Area Factor (AFEMc).
A' forUtotal =
NA Quality Record Westinghouse Non-Proprietary Class 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 Sample Population size that corresponds to the bounded AEMC*
Asu NEMc=A' NEMc corresponding to A' for Utotal =
NA THORIUM-232
- k.
Is the MDCscan for Th-232 less than the OCGLw ?
(If "Yes" then proceed to step llr)
Yese:, No[.,
- l.
Find the Area Factor (AF) in Appendix H that corresponds to the area bounded by the Statistical Sample Population (Asu).
AF1b.232 for the Bounded Area (Asu) =
NA
- m. Multiply the OCGLw for Th-232 by the Area Factor (AF) to derive a OCGLEMc for Th-232 OCGLEMc for Th-232 = NA pCi/g
- n.
Is the~ for Th-232 Jess than the OCGLEMc that was calculated for Th-232?
NAE, Yes[_, No[..,
(If "Yes" then proceed to step l lr)
- o.
Calculate a new AF (AFEMc) corresponding to the MDCscan for the selected instrument by dividing the MOCscan by the OCGLw.
AFEMc for Th-232 =
NA
- p.
Find the Area (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*
N
=Asu EMC A'
NEMc corresponding to A ' for Th-232 =
NA RADIUM-226
- r.
Is the MDCscan for Ra-226 less than the OCGLw ?
(If"Yes"then proceed to step 12)
Yes[J NoeJ
- s.
Find the Area Factor (AF) in Appendix H that corresponds to the area bounded by the Statistical Sample Population (Asu).
AFRa.226for the Bounded Area (Asu) =
7.45 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 DCG.LsMc for Ra-226 DCG.LsMc forRa-226 =
14.16
- u.
Is the MI>Cscan for Ra-226 less than the DCG.LsMc that was calculated for Ra-226?
NA[r YesW No[r (If "Yes" then proceed to step 12)
- v.
Calculate a new AF (AFEMc) corresponding to the MDCsan 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 AsMC*
N
=Asu EMC A'
NEMc corresponding to A > for Ra-226 =
NA
- 12. Calculate the Grid Spadng
- a.
Larger of N from step 8f and the maximum value of NEMc from llj, llq or llx.
(NEMc(max] or N) =
7
- b.
ls the Survey Unit a Class 3 Survey Unit?
(If "Yes", then continue to step 13)
Yes[P No19' C.
Calculate Grid Spacing (L).
~
Triangular Grid L =,~--Are
- a--
V.866(N or N/2)
Grid Spacing (L) for Survey Unit =
- 13. Generate a Survey Map
[::c: Square Grid 4.81 L -
~
~~
- a.
Assign a unique identification nwnber 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 5.9) ofHDP-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 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:
~ Class 1 C.. Class 2 r Class 3
- b.
Based on the Survey Unit Classification, the scan coverage in this Survey Unit is;
~
100% Scan Coverage of exposed soil fF
% 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:
C.. Class 3
- 1) Scan Investigation Levels are set at:
NA Sample Investigation Levels are set at 50% of the DCGLw when expressed as the SOF.
- b.
The Survey Unit is:
[F Class 2
- 2) Scan Investigation Levels are set at:
NA Sample Investigation Levels are set at the DCGLw when expressed as the SOF.
- c.
The Survey Unit is:
W-Class 1 cpm cpm
- 3) Scan Investigation Levels are set at:
6428 cpm Sample Investigation Levels are set at the DCGLw when expressed as the SOF.
- 17. Survey Instmctions and Sample Measurement Locations and Coordinates FSSP Approval Attach a copy of completed forms as appropriate:
~ Appendix P-3, FSS Survey Sample Instructions,
~ Appendix P-4, FSS Sample Measurement Locations & Coordinates
.c_ Appendix P-5, FSS Unit Classification Change Form
~ Appendix P-6, FSS Field Log
~ Survey Unit Figure C. Other:
Quality Record Westinghouse Non-Proprietary Class 3
Revision: 2 HDP-PR-FSS-701, FinaJ Status Survey Plan Development APPENDIX P-1 Page P-10 of 10 FINAL STATUS SURVEY SAMPLING PLAN FOR SOIL SURVEY UNITS
- 18. FSSP Approval Prepared by :
Peer Reviewed by :
Approved by (RSO):
Quality Record Westinghouse Non-Proprietary Class 3 q:?f~-/J (Date) t:J-1i-rs (Date)
Sample ID 6461-SS-130906-05-01-0N 6461-SS-130906-05-02-0N 6461-SS-130906-05-03-0N 6461-SS-130906-05-04-0N 6461-SS-130906-05-05-0N Average HDP-PR-FSS-701 Appendix P-1 Data for Enrichment Cale.
U-234 U-235 U-238 4.15 0.13 0.00 3.15 0.17 1.93 0.00 0.00 2.27 5.75 0.18 0.00 4.70 0.14 0.00 Quality Record U-238/U-235 Ratio Enrichment 0.00 HEU 11.69 1.40 0.00 HEU 0.00 HEU 0.00 HEU 77.88
Revision: 2 Page P-l of 4 Survey Area:
Survey Unit:
Comments:
10 09 HDP-PR-FSS-701, Final Status Survey Piao Development APPENDIX P-3
==
Description:==
==
Description:==
FSS SAMPLE INSTRUCTIONS Burial Pits Open Land Area VOC Pit in LSA I 0-06 The survey unit is classified as MARSSIM Class l. LSA 10-09 is a small excavated pit within the footprint ofLSA 10-06. The foot print ofLSA 10-09 covers a small area that was necessary to excavate due to the presence ofVOC contamination. There were no radiological concerns related to the excavation. LSA 10-09 was excavated down to the phreatic surface. Environmental sampling confirmed that there was no DNAPL (dense non-aqueous phase liquid) present and therefore excavation could be discontinued in accordance with the SAP.
LSA I 0-09 is a new survey unit created out of a need to backfill this "low point in LSA l 0-06 to prevent ground water infiltration. After FSS is complete, the collected soil samples will be sent off-site for analysis. To minimize the potential for impact from rain events and groundwater infiltration, the pit will be backfilled after on-site analysis by gamma spectroscopy of the FSS samples and data review is completed. 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 Class 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 Survev (GWS):
Scan Coverage 100% accessible excavation floors and walls Scan MDC 142.0 pCi/g Total Uranium (1,512 ncpm) 6,428 net cpm*
Investigation Action Level (IAL)
- magnitude of IAL is due to small survey unit size, a more restrictive lAL of 4,000 ncpm wiU be used.
Systematic Sampling Locations:
Depth Number of Sample Comments 0 - 15 cm 0
These samples will be taken on a 15 cm - l.5 m 0
systematic grid.
> l.Sm 7
Biased Survev/Samplin2 Locations:
Biased samples may be collected during Gamma Walkover Surveys (at the discretion of the HP 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 222 L with 44-10 (2x2 Nal) detector static count rates at biased measurement locations.
General Instructions:
- 1.
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 RSO before continuing work and be documented in the FSS Field Log.
- 2.
This is a Class I Survey Unit. Class L units are gridded to identify the systematic sampling locations. Each sample location will have associated GPS coordinates specified. ln the case of inaccessible sampling locations additional pairs of random sample coordinates may be generated with the Radiological Engineering's approval in order to identify an acceptable sampling location.
- 3. A map of tl1e survey unit showing predetermined sample locations with associated GPS coordinates wiU be generated. A copy of the sample map and survey locations will be attached to the survey instruction.
- 4.
Verify that isolation controls established in accordance with HDP-PR-HP-602 are in place prior to the start of FSS.
- 5.
Perform daily pre and post QC source checks in accordance with HDP-PR-HP-416.
Quality Record Westinghouse Non-Proprietary Class 3
Revision: 2 HDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-3 FSS SAMPLE INSTRUCTIONS Page P-3 of 4
- 6.
Additional sampling may be required, based on results of the GWS, or as determined by Radiological Engineering.
- 7.
At each systematic soil sampHng location a composite soil sample will be collected from each location and depth as determined after tbe completion of excavation (and will be provided in Appendix P-4). Tbe systematic sample locations will include O (zero) samples taken at a depth of O - 15 cm (surface) and O (zero) samples collected at a depth of 15 cm - J.5 m (root) and 7 (seven) samples collected at a depth of 1.5 m to 1.65 m (deep).
- 8.
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.
Specific Instructions:
Gamma Walkover Surveys (GWS)
- l.
Perform a gamma walkover of the survey unit holding the probe as close to the surface as possible, in accordance with HDP-PR-FSS-711. A GPS system and data logging should be interfaced with the meter whenever possible.
ff a GPS system is not available, contact Radiological Engineering.
- 2.
Move at a speed of I -foot per second or Jess. 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 JAL for this unit).
- 4.
Mark the Jocation(s) exhibiting anomalous readings and ensure the location is logged to facilitate future investigations (for example, use a flag, 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 witb the area of interest on the Field Log (Appendix P-6).
NOTE: If field conditions limit the ability to perform contact readings, collect readings as close as practical and log the issue for each location in the FSS 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 perfonning 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 JAL 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 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.
Quality Record Westinghouse Non-Proprietary C lass 3
Revision: 2 BDP-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 HDP-PR-FSS-71 1 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 l 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 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 of6 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.g., 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.
AJI 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 l, etc.), and for Tc-99 by liquid scintillation counting or ICPMS.
- 9.
Submit samples for analysis following sample chain of custody requirements contained in HDP-PR-QA-006.
Prepared by:
Peer Reviewed by:
Approved by (RSO):
Qua lity Record (Date)
(Date)
CJ-18-l:l (Date)
Westinghouse Non-Proprietary Class 3
Revision: 2 Page P-1 of l BDP-PR-FSS-701, Final Status Survey Plan Development APPENDIX P-4 FSS SAMPLE & MEASUREMENT LOCATIONS & COORDINATES Survey Area:
No.
LSA 10
==
Description:==
Burial Pits Open Land Area
==
Description:==
Survey Unit:
No.
09 voe Pit in LSA 10-06 s
T urvey _ype:
S *1 S 01 amp lin Lg Cl
'fi ass* 1cation:
1 Measurement Surface Type Start Depth End Depth Northing Easting or Sample ID orCSM (feet)
(feet)
(Y Axis)*
(X Axis)*
L100901BESOO Deep s
0 0.5 865059.5 827780.9 L100902BESOO Deep s
0 0.5 865048.4 827769.8 Ll00903BESOO Deep s
0 0.5 865044.4 827785.0 L100904BESOO Deep s
0 0.5 865037.3 827758.7 L100904BEQOO Deep s
0 0.5 865037.3 827758.7 L100905BESOO Deep s
0 0.5 865033.3 827773.9 L100906BESOO Deep s
0 0.5 865029.2 827789.0 L100907BESOO Deep s
0 0.5 865018.1 827777.9
- Distance in feet from southwest comer of the surface.
Surface; Floor = F, Wall = W, C.eiling = C, Roof= R CSM; Surface, Root, Deep or Uniform Type; Systematic = S. QC= Q, Biased = 8, Investigation = l Quality Record Westinghouse Non-Proprietary Class 3
LSA-10-05 BP South 3 BP South 4 Northing: 865043.2 Easting: 827747.2
- Northing: 865066.8 Easting: 827780.5 LSA-10-09 140m 2 BP South 5 LSA-10-07 BP South 6 LEGEND:
Comer Point D LSA Boundary CJ LSA-10-09 D BP Excavation Unit t:J Burial Pit Area 0
10 20 Feet LSA-10-09 Burial Pit Area Requested By:
M. Bresnahan Document/Reason:
Final Status Survey Hematite Decommissioning Project Jefferson County Hematite, MO Prepared By:
Rev:
DJH 0
Size:
8.Sxl I Date:
09-18-13
LSA-10-05 BP South 4 LSA-10-09 Ll00905BES00 Ll00906BESOO BP South 5 LSA-10-07 LEGEND:
Sample Location D LSA Boundary c::J LSA-10-09 D BP Excavation Unit t:J Burial Pit Area 0
10 20 Feet LSA-10-09 Systematic Sample Locations Requested By:
Document/Reason:
M. Bresnahan Final Status Survey Hematite Decommissioning Project Jefferson County Hematite, MO Prepared By:
Rev:
DJH 0
Size:
8.Sxl 1 Date:
09-17-13