E910-05-036, Submittal of Final Status Survey Report for Saxton Nuclear Experimental Corporation, Saxton Steam Generating Station Structural Surfaces - Firing Aisle SS13
| ML052090275 | |
| Person / Time | |
|---|---|
| Site: | Saxton File:GPU Nuclear icon.png |
| Issue date: | 07/22/2005 |
| From: | Kuehn G GPU Nuclear Corp |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| E910-05-036 | |
| Download: ML052090275 (127) | |
Text
GPU Nuclear, Inc.
CdU Three Mile Island Nuclear Station NUCLEAR Route 441 South Post Office Box 480 July 22, 2005 Middletown, PA 17057-0480 E910-05-036 Tel 717-948-8461 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Gentlemen, Subject Saxton Nuclear Experimental Corporation (SNEC)
Operating License No., DPR-4 Docket No. 50-146 FSS Report for SSGS Firing Aisle The purpose of this letter is to submit for your review the attached FSS Report for SSGS Firing Aisle. One CD-ROM is included in this submission. The CD-ROM labeled: 'FSS Report - SSGS Firing Aisle - Publicly Available" contains the following 5 files:
Document Title File Name File Size (Mbytes)
Main Report 001 ASS Report- SSGS Firing 0.195
__________________________Aisle.pdf Appendix A (pages 1-6) 002 - Appendix A (1-6).pdf 7.84 Appendix A (attachments I to 14) 003 - Appendix A (attachments 1 45.6
__________________________to 14).pdf Appendix B 004 - Appendix B.pdf 14.4 Appendix C 005 - Appendix C.pdf 7.41 If you have any questions on this information, please contact Mr. Art Paynter at (814) 635-4384.
Sincerely,
/2A.KuehnfO Program Director, SNEC cc: NRC Project Manager NRC Project Scientist, Region 1 Mr. Tim Bauer, ORISE Project Leader 0AED
Final Status Survey Report For Saxton Nuclear Experimental Corporation Saxton Steam Generating Station Structural Surfaces - Firing Aisle SS13 89,1VI ttl in
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Table Of Contents Executive Summary
1.0 Purpose and Scope
2.0 Survey Area Description 3.0 Operating History 3.1 Plant Operations 3.2 Survey Area Remediation Status 4.0 Site Release Criteria 5.0 Final Status Survey Design / DQO Process 6.0 Final Status Survey Results 6.1 Summary for Survey Unit SS13-1 6.2 Summary for Survey Unit SS13-2 7.0 Data Assessment 7.1 Assessment Criteria 7.2 Summary of Overall Results 7.3 Survey Variations 7.4 Quality Control Measurements 8.0 Final Survey Conclusions 9.0 References 10.0 Appendices i
Executive Summary This report presents the results and conclusions of the final status survey (FSS) of the Class 3 structural surfaces of the Saxton Nuclear Experimental Corporation (SNEC) facility designated as SS13. This FSS includes surveys of residual structural surfaces (e.g. concrete) of the firing aisle of the Saxton Steam Generating Station of the SNEC site and was conducted in the summer of 2003.
The FSS was performed in accordance with the SNEC License Termination Plan (LTP). The firing aisle survey area was divided into two survey units. Each unit consisted of relatively flat residual structural surfaces. Data was collected from each survey unit in accordance with the specific survey design data collection requirements. The following is a summary of the measurements performed:
- 1) Automated position sensitive large area detector surface contamination monitor (SCM) scans of about 15% of the surface area.
The SCM surveys were conducted by a contractor utilizing a large area position sensitive gas flow proportional counter. Portions of the survey units could not be surveyed with this equipment because of the large size of this detector and surface irregularity but coverage percentages were adequate.
The collected FSS survey data demonstrate that the 640 square meters of the SSGS firing aisle survey area meets the radiological release criteria for unrestricted use specified in 10CFR20.1402. Therefore GPU Nuclear, Inc.
concludes that the area meets the NRC requirements and may be released for unrestricted use.
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1.0 Purpose and Scope
This report presents the results and conclusions of the final status survey of the residual structural surfaces of the SSGS firing aisle consisting of two survey units designated SS13-1 and SS13-2 west of the SNEC facility. It provides the information required by 10CFR50.82(a)(11) and the SNEC license termination plan (LTP) to demonstrate that this area meets the radiological criteria for unrestricted use specified in I OCFR20.1402.
This report describes the radiological data collected in two survey units consisting of two Class 3 survey units of residual structural surface of the SSGS firing aisle. This report only addresses the FSS performed on this specific area .
The format of this report follows the guidance contained in reference 9.2.
2.0 Survey Area Description The SSGS firing aisle is Class 3 impacted structural surface located up to about 6 feet underground to the west of the SNEC facility. The survey unit encompasses about 640 square meters of concrete. Because the area was clearly delineated as floors and walls, the survey area was divided into two survey units. The two survey units are discussed below. The individual survey unit designations are derived from table 5-2 of the SNEC LTP (reference 9.3).
Survey unit SS13-1 is a Class 3 residual concrete surface of the SSGS firing aisle. It consists of the floor of the main firing aisle area - a surface about 6 feet below grade. The survey unit is approximately 560 square meters.
Survey unit SS13-2 is a Class 3 residual concrete surface of the SSGS firing aisle. It consists of the walls of the main firing aisle area extending from the floor slab about 6 feet below grade up to the boiler.pad at grade level. The survey unit is approximately 80 square meters.
3.0 Operating History 3.1 Plant Operation The Saxton Nuclear Experimental Corporation (SNEC) facility included a pressurized water reactor (PWR), which was licensed to operate at 23.5 megawatts thermal (23.5 MWTh). The reactor, containment vessel and support buildings have all been removed. The facility is owned by the Saxton Nuclear Experimental Corporation and is licensed by GPU Nuclear, Inc. The SNEC facility is maintained under a Title 10 Part 50 license and associated Technical 2-of 10
Specifications. In 1972, the license was amended to possess but not operate the SNEC reactor.
The facility was built from 1960 to 1962 and operated from 1962 to 1972 primarily as a research and training reactor. Steam from the SNEC reactor was directed to the adjacent Saxton Steam Generating Station (SSGS) to generate electricity.
Other shared systems also introduced SNEC activity into the SSGS and the main SNEC discharge entered the SSGS discharge tunnel. After shutdown in 1972, the SNEC facility was placed in a condition equivalent to the current SAFSTOR status. Since then, it has been maintained in a monitored condition. The fuel was removed in 1972 and shipped to a (now DOE) facility at Savannah River, SC, who is now the owner of the fuel. .As a result of this, neither SNEC nor GPU Nuclear, Inc. has any further responsibility for the spent fuel from the SNEC facility. The building and structures that supported reactor operation were partially decontaminated by 1974. The SSGS was dismantled circa 1974.
In the late 1980s and through the 1990s, additional decontamination and disassembly of the containment vessel and support buildings and final equipment and large component removal was completed. Final decontamination and dismantlement of the reactor support structures and buildings was completed in 1992. Large component structures, pressurizer, steam generator, and reactor vessel were removed in late 1998. Containment vessel removal (to below grade) and backfill was completed in late 2003. Currently, decontamination, disassembly and demolition of the SNEC facility buildings and equipment has been completed and the facility is in the process of Final Status Survey for unrestricted release and license termination.
3.2 Survey Area Remediation Status No known remediation occurred in the firing aisle.
4.0 Site Release Criteria The site release criteria applied to the structural surface areas of the SSGS firing aisle correspond to the radiological dose criteria for unrestricted use per 10CFR20.1402. The dose criteria is met "if the residual radioactivity that is distinguishable from background radiation results in a Total Effective Dose Equivalent (TEDE) to an average member of the critical group that does not exceed 25 mrem/yr, including that from groundwater sources of drinking water, and that the residual radioactivity has been reduced to levels that are as low as reasonably achievable (ALARA)".
Levels of residual radioactivity that correspond to the allowable dose to meet the site or survey unit release criteria for structural surfaces were derived by analyses using a building re-use scenario. The dose modeling for this scenario is 3 of 10
explained in the SNEC LTP (reference 9.3). The derived concentration guideline levels (DCGL) shown in Table 5-1 of the SNEC LTP form the basis for satisfying the site release criteria.
Residual radioactivity sample results for the surfaces were used to calculate a surrogate Cs137 DCGL. The adjusted surrogate DCGL was developed using the methodology described in the SNEC LTP section 5.2.3.2.3 based on nuclide specific DCGLs from Table 5-1 of the LTP.
An adjustment was made to the surrogate Cs137 DCGL to address the de-listed radionuclides as described in the LTP section 6.2.2.3. SNEC has instituted an administrative limit of 75% of the DCGL for all measurement results. The de-listed radionuclides are conservatively accounted for in this 25% reduction since the de-listed radionuclides were only 4.7% of the dose contribution. These adjustment factors are discussed in section 6 of the SNEC LTP.
5.0 Final Status Survey Design and DQO The SNEC calculation providing the design of the survey for these survey units is provided in Appendix A. Scans of the two Class 3 survey units covered 13% of SS13-1 and 28% of SS13-2. Scans were conducted using an automated .position sensitive large area gas flow proportional counter ("Surface Contamination Monitor" - SCM).
No fixed point measurements were performed. Because of the manner in which the SCM measures continuously and collects position information as well, SCM scanning is equivalent to continuous, full coverage static measurements. Section 5.4.3 of the SNEC LTP provides for use of such positionally sensitive scanning in lieu of fixed point measurements when the scanning system has a detection limit a small fraction of the DCGL (e.g. 10%). MARSSIM section 6.7.1 requires that fixed point measurements be capable of detecting the DCGL. In addition, section 6.4.1 of MARSSIM briefly discusses the potential use of modem, positionally referenced survey instrumentation. The maximum MDC observed for a 100cm area in the SCM scanning was less than 50% of the DCGL. Although the LTP recommends lower detection limits for use of the SCM as fixed point measurements, the use of the SCM results for direct measurements is acceptable because the detection limits meets the MARSSIM requirements.
Therefore, no static measurements are required.
The survey design uses a surrogate Cs137/gross beta effective DCGL developed from radionuclide mix analyses from samples collected before the Final Status Survey in the vicinity of the survey unit. The mix was based on radionuclide mix data (including the hard-to-detects listed in Table 5-1 of the LTP) primarily from the SSGS basement footprint area (attachment 2 of appendix A).
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Cs137, Co-60, Am241, and Pu239 were positively detected in one or more of these samples and are accounted for in the adjusted surrogate DCGL. Additional sample results obtained later were used to modify the mix after the survey. The following table (Table 1) presents the Data Quality Objectives (DQO) and other relevant information from the survey design package.
Table I - DQO/Design DQO/Design Parameter SS13-1, SS12-2 SNEC Design Caic. # E900-03-019 MARSSIM Classification 3 Survey Unit Area 2 (m ) 560, 80 Statistical Test NlA**
Type 1 decision error (a) N/A Type 2 decision error (1B) N/A LBGR (cpm) N/A Estimated ac (dpm/lOOcm 2 ) N/A Relative Shift (A/a) N/A Number of static points NIA DCGLw* (Cs137 13571 dpm/100cm 2 ) 13571 75%Admin Limit* (s137 10178 dpm/1OOcm 2 )
DCGLw (Cs137 cpm) N/A Action Level (cpm) N/A Scan MDC (dpm/100cm2) 6547 SNEC Survey Request # SR84 Scan Survey Instrument SCM
- this table presents final design DCGL and action level values from appendix C
- because the SCM performs continuous scans with positional information that are equivalent to full coverage fixed point surveys, some MARSSIM design parameters are not applicable (e.g. LBGR, number of static points, etc.). The SCM produces results directly in dpm/1 00cm2 so cpm based factors are not used.
6.0 Final Status Survev Results The following sections provide the survey summary results for each survey unit as required by the respective design. Summary data was taken from reference 9.8 and 9.9 which are filed in the SNEC history files.
6.1 Survey Unit SSI3-1 6.1.1 Scan survey 5.of 10
Scan measurements were made in SS13-1 using the automated SCM system with a design MDCscan of 6547 dpm/1OOcm 2 (section 2.1.10 on page 3 of appendix A). Actual scan MDC was 3622 dpm/1OcrM2(reference 9.9). The adjusted surrogate gross beta DCGLw for this survey unit for the SCM scans was 13571 dpm/100cm and the 75% administrative limit was 10178 dpm/1OOcm 2 (table 6 of appendix C).
Of the 560 square meters of this survey unit, portions were inaccessible to the SCM scanning for various reasons, particularly uneven surfaces not amenable to large probe automated scanning. Since this is a Class 3 area, scanning was not attempted on all of the surface. Of the 560 square meters, 74.4 were actually scanned. Therefore about 13 percent of the survey unit was scanned which is consistent with coverage requirements for Class 3 survey units.
All SCM surveys indicated activity less than the 75% administrative limit for a minimum 1 square meter grid averaging. One square meter averages are applied to the SCM data since this is the minimum size of an area for emc testing per the SNEC LTP. No follow-up 43-68 scans were required.
6.1.2 Fixed point measurements This survey unit was scanned using an automated position sensitive proportional counter. This survey unit did not receive fixed point direct static measurements.
As discussed in Section 5.0, the SCM is equivalent to continuous static measurements of the entire surface scanned.
6.2 Survey Unit SS13-2 6.2.1 Scan survey Scan measurements were made in SS13-2 using the automated SCM system with a design MDCscan of 6547 dpm/1OOcm 2 (section 2.1.10 on page 3 of appendix A). Actual scan MDC was at most 4304 dpm/100cm 2(reference 9.9).
The adjusted surrogate gross beta DCGLw for this survey unit for the SCM scans was 13571 dpm/1OOcm 2 and the 75% administrative limit was 10178 dpm/1OOcm 2 (table 6 in appendix C).
Of the 80 square meters of this survey unit, portions were inaccessible to the SCM scanning for various reasons, particularly uneven surfaces not amenable to large probe automated scanning. Since this is a Class 3 area, scanning was not attempted on all of the surface. Of the 80 square meters, 22 were actually scanned. Therefore about 28 percent of the survey unit was scanned which is consistent with coverage requirements for Class 3 survey units.
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All SCM surveys indicated activity less than the DCGLw for a minimum 1 square meter grid averaging. One square meter averages are applied to the SCM data since this is the minimum size of an area for emc testing per the SNEC LTP. No follow-up 43-68 scans were required.
6.2.2 Fixed point measurements This survey unit was scanned using an automated position sensitive proportional counter. This survey unit did not receive fixed point direct static measurements.
As discussed in Section 5.0, the SCM is equivalent to continuous static measurements of the entire surface scanned.
7.0 Data Assessment 7.1 Assessment Criteria The final status survey data has been reviewed to verify authenticity, appropriate documentation, quality, and technical acceptability. The review criteria for data acceptability are:
- 1) The instruments used to collect the data were capable of detecting the radiation of the radionuclide of interest at or below the investigation levels.
- 2) The calibration of the instruments used to collect the data was current and radioactive sources used for calibration were traceable to recognized standards or calibration organizations.
- 3) Instrument response was checked before and, when required, after instrument use each day data was collected.
- 4) Survey team personnel were properly trained in the applicable survey techniques and training was documented.
- 5) The MDCs and the assumptions used to develop them were appropriate for the instruments and the survey methods used to collect the data.
- 6) The survey methods used to collect the data were appropriate for the media and types of radiation being measured.
- 7) Special instrument methods used to collect data were applied as warranted by survey conditions, and were documented in accordance with an approved site Survey Request procedure.
- 8) The custody of samples that were sent for off-site analysis were tracked from the point of collection until final results were provided.
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- 9) The final status survey data consists of qualified measurement results representative of current facility status and were collected in accordance with the applicable survey design package.
If a discrepancy existed where one or more criteria were not met, the discrepancy was reviewed and corrective action taken (as appropriate) in accordance with site procedures.
The statistical test does not need to be performed for this final status survey since the data clearly show that the survey unit meets the release criteria because all measurements in the survey units are less than or equal to the DCGLw.
7.2 Summary of Overall Results SS13-1 had no alarm points during scan surveys of approximately 13% of the surface. Scan MDCs were adequate. Fixed point measurements were not required consistent with the SNEC LTP and MARSSIM for automated position sensitive survey equipment. Scan fraction and elimination of fixed point measurements meets LTP and MARSSIM requirements.
SS13-2 had no alarm points during scan surveys of approximately 28% of the surface. Scan MDCs were adequate. Fixed point measurements were not required consistent with the SNEC LTP and MARSSIM for automated position sensitive survey equipment. Scan fraction and elimination of fixed point measurements meets LTP and MARSSIM requirements.
7.3 Survey Variations (Design, survey request, LTP) 7.3.1 Portions of the survey units could not be scanned using the SCM automated detector system. However, this was considered in the design that expected scanning of accessible areas.
7.4 QC comparisons 7.4.1 Scan surveys Areas were rescanned as QC duplicates. The QC rescans did not identify any activity above alarm points and so are in agreement with the primary scans and support the same conclusion that the survey unit passes. QC scans were conducted on 6.6 m2 of the survey area, which represents about 6.9 percent of the 96 square meters originally scanned. This exceeds the minimum 5%
required.
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7.4.2 Fixed Point measurements Since no fixed point measurements were required due to the unique nature of SCM scanning, no specific fixed point QC measurements were made.
8.0 Final Survey Conclusions The Structural Surfaces of the SSGS firing aisle survey units SS13-1, SS13-2 final status survey was performed in accordance with the SNEC LTP, site procedures, design calculations, and Survey Request requirements. FSS data was collected to meet and/or exceed the quantity specified or required for each survey unit design. The survey data for each survey unit meets the following conditions:
- 1) The average residual radioactivity on the surfaces is less than the derived surrogate DCGLw in all of the survey units.
- 2) All measurements were less than the DCGLw in units SS13-1 and SS13-2.
These conditions satisfy the release criteria established in the SNEC LTP and the radiological criteria for unrestricted use given in 10CFR20.1402.
Therefore it is concluded that the SNEC Structural Surface Areas of the SSGS firing aisle designated SS13 are suitable for unrestricted release.
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9.0 References 9.1 SNEC Facility Site area grid map Drawing number SNECRM-020 9.2 SNEC procedure E900-ADM-4500.60 "Final Status Survey Report" 9.3 SNEC License Termination Plan 9.4 NUREG 1575 "Multi-Agency Radiation Survey and Site Investigation Manual" (MARSSIM), revision 1 August 2000 9.5 COMPASS computer program, Version 1.0.0, Oak Ridge Institute for Science and Education 9.6 SNEC procedure E900-IMP-4500.59, "Final Site Survey Planning and DQA" 9.7 SNEC procedure E900-IMP-4520.04, "Survey Methodology to Support SNEC License Termination" 9.8 SNEC Survey Request (SR) # SR084 9.9 Shonka Research Associates, Inc. "Final Report for SCM Survey of Saxton Nuclear Experimental Corporation", March 3, 2005 10.0 Appendices Appendix A - SNEC Calculation E900-03-019 - uShonka SSGS Footprint
& CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design" (14 pages plus numerous attachments)
Appendix B - SNEC Calculation E900-03-019 - "Shonka SSGS Footprint
& CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design" (14 pages plus numerous attachments) Revision 1 Appendix C - DCGL Calculation Logic - SSGS Footprint 10 of 10
Appendix A Survey Design
SNEC CALCULATION COVER SHEET CALCULATION DESCRIPTION Calculation Number Revision Number Effective Date Page Number E900-03-019 0 - 1 of 14 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Question 1 - Is this calculation defined as 'in QA Scope'? Refer to definition 3.5. Yes Z No Ea Question 2- Is this calculation defined as a 'Design Calculation'? Refer to definitions 3.2 and 3.3. Yes 0 No a Question 3 - Does the calculation have the potential to affect an SSC as described in the USAR? Yes Ea No 0 NOTES: If a 'Yes answer is obtained for Question 1,the calculation must meet the requirements of the SNEC Facility Decommissioning Quality Assurance Plan. If a 'Yes answer is obtained for Question 2, the Calculation Originators immediate supervisor should not review the calculation as the Technical Reviewer. If a 'YES' answer is obtained for Question 3, SNEC Management approval is required to implement the calculation. Calculations that do not have the potential to affect SSC's may be implemented by the TR.
DESCRIPTION OF REVISION APPROV IGNAT7 RES ..
Calculation Originator P. Donnachie I Date g/h y/0-3 Technical Reviewer R. Holmesl Date Additional Review Date Additional Review Date SNEC Management Approval A. Paynteri Date
? SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 0 Page 2 of _14 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design 1.0 PURPOSE 1.1 The purpose of this calculation is to provide the survey design guidance to be followed for conducting final status surveys (FSS) in the Saxton Steam Generation Station (SSGS) footprint and the adjacent CV Steam Pipe Tunnel (805' elev.). The SSGS footprint consists of the "Firing Aisle" (806' elev.), SSGS Basement Area (790' elev.) and Seal Chamber 1 & 2 Roof areas (-803' elev.). The CV Steam Pipe Tunnel extends off the northeast corner of the SSGS footprint.
1.2 Shonka Research Associates (SRA) will conduct scan surveys using procedures reviewed and approved by SNEC. These procedures are attached as Appendices.
2.0
SUMMARY
OF RESULTS 2.1 The following information will be used to conduct the applicable FSS for this survey design:
2.1.1 The SSGS Footprint area is divided into eleven (11) survey units, i.e. six (6) Class 1, two (2) Class 2 and three (3) Class 3 survey units.
2.1.2 The SSGS Survey Unit (SU) Numbers are as follows (See Attachments 7 & 8 for survey unit locations):
SU Number Area Description Classification Area (m2) '.
SS13-1 Firing Aisle Floor (806') 3 560 SS13-2 Firing Aisle Walls 3 80 SS14-1 Basement Floor (790') 1 75 SS14-2 Basement Floor (790') ' 1 75 SS14-3 Basement Floor (790') 2. 1 88 SS14-4 Basement Floor (790') 1 77 SS14-5 Basement Floor (790') 1 56 SS15 Basement Wall (East End) 1 100 SS16 Basement Walls Up to 2 2 240 meters SS17 Basement Walls > 2 meters 3 350 SS18 Seal Chamber 1 & 2 Roofs 2 32 Note 1: Area and linear dimensions are approximations.
Note 2: Basement floors will include walls of trenches where possible.
2.1.3 The CV Steam Pipe Tunnel (SSGS Side) consists of three parts: floor, walls and ceiling. Since characterization information in this tunnel is limited and radioactive steam passed through it, the entire area has been classified as Class 1. This area is not described in the current Revision 2 of the SNEC LTP. However, this area will be included in Table 5-2 under the SSGS section in the next LTP revision. The CV Steam Pipe Tunnel is divided into three (3) Class I survey units.
A ~ SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 0 Page 3 ofJ4_4 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design 2.1.4 The Survey Unit Numbers for these CV Steam Pipe Tunnel (SSGS Side) are as follows:
SU Number Area Description Classification Area (m2)
SS22-1 CV Steam Pipe Tunnel floor 1 20 SS22-2 CV Steam Pipe Tunnel walls 1 45 SS22-3 CV Steam Pipe Tunnel ceiling 1 15 2.1.5 The number of static measurement points will be developed, as applicable, after SRA completes their survey and results are reviewed by the FSS group.
2.1.6 The minimum scan coverage for Class 1 areas will be 100%, Class 2 areas, 50%
and for Class 3 areas, 10-50%.
2.1.7 Scan speed will be set in accordance with SRA procedures and the SNEC MDCsC =n value calculated for structure surfaces.
2.1.8 The SSGS Footprint and the adjacent CV Steam Pipe Tunnel have different surface DCGLW values. For this design the following DCGLw values apply:
SSGS Footprint - 13,095 dpm/100 cm 2 CV Steam Pipe Tunnel - 7628 dpm/100 cm 2 These values are the 75% administrative limits for the surrogate Cs-137 values calculated in Attachments 3 & 5.
2.1.9 As a guideline for elevated measurement (hot spot) determination a surface area DCGLemc will use an apriori Cs-137 surface area factor for a 1-M2 area equal to 11.
These values are calculated to be:
SSGS Footprint- 144,045 dpm/100 cm 2 CV Steam Pipe Tunnel - 83,908 dpm/1 00 cm2 Note: If an elevated measurement (hot spot) is detected a dimensional analysis will be made of the hot spot and the appropriate area factor will be applied from SNEC LTP Table 5-15a.
2.1.10 The MDCSCan values for this design that SRA must achieve are:
SSGS Footprint - 6547 dpm/100 cm2 CV Steam Pipe Tunnel - 3814 dpm/100 cm 2 2.1.11 Areas greater than the DCGLW must be identified, documented, marked, and bounded to include an area estimate.
2.1.12 Class 1 areas with surface deformations that cannot be surveyed by Shonka will be identified by marking or painting around the suspect area's perimeter.
Di t . SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 I 0 l Page 4 of 14 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design 2.1.13 Remediation is indicated when any area exceeds 3 x the DCGLW for any scan measurement or when the value for any area of -1 square meter is greater than the DCGLem. Note: If additional remediation is performed the survey unit design is void.
2.1.14 Gas flow proportional counter (GFPC) will be used lAW SRA procedures.
3.0 REFERENCES
3.1 SNEC Facility License Termination Plan.
3.2 Procedure E900-IMP-4500.59, "Final Site Survey Planning and DQA".
3.3 SNEC procedure E900-IMP-4520.04, "Survey Methodology to Support SNEC License Termination".
3.4 SNEC procedure E900-IMP-4520.06, uSurvey Unit Inspection in Support of FSS Design".
3.5 NUREG-1575, "Multi-Agency Radiation Survey and Site Investigation Manual", August 2000.
3.6 SRA Procedures - See Appendix Section 6.0.
3.7 SNEC Calculation E900-03-012, "Effective DCGL Worksheet Verification."
4.0 ASSUMPTIONS AND BASIC DATA 4.1 SRA procedures to be used to perform scan surveys.
4.2 SNEC LTP section 2.2.4.1.5 and Figure 2-25 provide a description of the SSGS Footprint.
4.3 Attachment 6 provides figure of the CV Steam Pipe Tunnel (SSGS Side).
4.4 Remediation History The Saxton Steam Generating Station (SSGS) Footprint consists of multiple levels. The upper level, "Firing Aisle" (-806' El), contained little or no contaminated surfaces.
However, several drain lines contained levels of Cs-137 that was discemable above typical background values. The majority of this piping was removed during the remediation process. Any impacted piping that is to be left behind will be sampled and surveyed in accordance with SNEC site procedures.
The lower level, SSGS Basement Area (-790'), was surveyed and sampled in stages because of elevated ground water levels, which would have normally resided to a depth several feet above the floor (-790'). Water was pumped from region to region at this elevation to allow the completion of the characterization process on the walls and floor sections of the basement area. Results from surveys and sampling in this region show somewhat contaminated surfaces exist on the floor and in the sump areas at this lower elevation. Tie lines (piping) between sumps were also contaminated and were cut out.
Surface drain lines and miscellaneous piping that were impacted and accessible were removed. Other piping in this region that showed elevated levels of residual contamination and will be treated in accordance with SNEC site procedures.
. SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 l0 Page 5 of 144 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Characterization results for the SSGS area are presented in the SNEC LTP, Tables 2-3a through 2-3d and 2-29. This is a complex structure both physically and radiologically.
Table 5-2 provides the survey classifications that result from the complete characterization data for this area.
The west end of the CV Steam Pipe Tunnel exited the southwest side of the pipe tunnel that surrounds the CV. The CV Steam Pipe Tunnel then connected to the SSGS. The tunnel is known to have had trace amounts of surface contamination from leaking steam pipes. All piping has been removed from this tunnel. It is presently sealed at its end with a metal and/or concrete block wall. Since this area was potentially surface contaminated and since it was not physically isolated from the SSGS, it poses some questions as to just how well SSGS cleanup was accomplished prior to demolition. In 2001 surface scans and loose contamination surveys were performed in 2001. Results from these surveys indicated <1000 dpm/100 cm2 beta-gamma and <15 dpm/100 cm2 alpha for removable surface contamination, surface scans <100 ncpm (RM-14) and <0.1 mr/hr general area.
On 8/14/03 paint chips were taken from the tunnel wall. An evaluation of these chips determined that there was no surface activity between the paint layer and the bare wall.
This paint was determined to have been part of the original structure and not used to cover up contamination. Gamma scans (ref. gamma log numbers 5-14471 and 1-14472) performed on the paint chips indicated no radionuclides above minimum detectable activity (MDA). Therefore, there was no reason to remove paint prior to FSS.
4.5 This survey determines the effective DCGL, value for Cs-137 using the spreadsheet mix in Attachments 3 & 5. A 25% reduction to the effective DCGL, was performed to address de-listed radionuclides. The SNEC facility has instituted an administrative limit of 75% for the allowable dose for all measurement results. The de-listed radionuclide dose is accounted for within the 75% administrative limit.
4.6 Radionuclide mixes used to determine effective DCGLW were taken from Attachments 2 &
4.
4.7 The MDCCn calculation is determined based on LTP section 5.5.2.5. The calculation simply reduces the applicable DCGLW by 50%.
4.8 Special measurements including gamma-ray spectroscopy are not included in this survey design.
4.9 Static and other survey measurements may be conducted as applicable after review of the SRA survey is completed. This design will be revised to incorporate these surveys as determined by the FSS group.
4.10 The survey design checklist is listed in Attachment 1.
5.0 CALCULATIONS SSGS Footprint
- The required DCGLw =17,461 x 0.75 = 13,095 dpm/100 cm2.
- The MDCSn = 13,095 x 0.5 =6547 dpm/100 cm2.
- DCGLnm for 1 m2 = 13,095 X AF of 11 = 144,045 dpm/100 cm2.
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 0 Page 6 of4__1 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design CV Steam Pipe Tunnel
- The required DCGLw = 10,170 x 0.75 = 7628 dpm/100 cm2.
- The MDCSxn = 7628 x 0.5 = 3814 dpm/100 cm2.
- DCGL,,, for 1 m2 = 7628 X AF of 11 = 83,908 dpm/100 cm2 .
6.0 APPENDICES 6.1 Attachment 1, Survey Design Checklist.
6.2 Attachment 2, Sample Results for SSGS Footprint 6.3 Attachment 3, SSGS Footprint Effective Area DCGL- for Cs-137 (dpm/100 cm2) 6.4 Attachment 4, Sample Results for CV Pipe Tunnel (SSGS Side) 6.5 Attachment 5, CV Tunnel (SSGS Side) Effective Area DCGL for Cs-1 37 (dpm/100 cm2) 6.6 Attachment 6, CV Steam Pipe Tunnel (SSGS Side) Figure 6.7 Attachment 7, SSGS Footprint Firing Aisle & Top of Seal Chambers 6.8 Attachment 8, SSGS Footprint Basement (790')
6.9 Attachment 9, SRA SCM Procedure 001, Rev 6, Confirmation and Calibration of the Incremental Encoder.
6.10 Attachment 10, SRA SCM Procedure 005, Rev 6, Requirements for Completion of the Survey Using the SCM.
6.11 Attachment 11, SRA SCM Procedure 006, Rev 4, Performance of a Position Calibration on a PSPC.
6.12 Attachment 12, SRA SCM Procedure 007, Rev 7, Source Response Check and Performance Based Check of any PSPC Detector Configuration Installed on the SCM.
6.13 Attachment 13, SRA SCM Procedure 008, Rev 3, Conduct of Operations for Surveys Using the SCM/SIMS:
6.14 Attachment 14, SRA SCM Procedure 011, Rev 1, Survey Naming Convention when Using the SCM.
BEVY SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 0 Page 7 of _14 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Attachment 1 Survey Design Checklist Calculation No. 69 Location Code: See attached design for location codes.
___6900-03-019 iTEM IT MR F C SStatus VEW FOCUS REVIEW Reviewer (Circle One) I itials & Date srve desgn alcuatin nuberbeen assigned and is a survey design summary I a Ha oe NA Has1asur y desi lcu on ption provided? ( N/A 2 Are drawingstdiagrams adequate for the subject area (drawings should have compass e /A headings)?i 3 Are boundaries properly identified and is the survey area classification clearly indicated?
4 Has the survey area(s) been properly divided into survey units lAW EXHIBIT 10 (go sNM)l 5 Are physical characteristics of the area/location or system documented? e N/A 6 Is a remediation effectiveness discussion included? (@ N/A 7 Have characterization survey andlor sampling results been converted to units that are (1 N/A comparable to applicable DCGL values?
8 Is survey and/or sampling data that was used for determining survey unit variance included? Yes,(N) is a description of the background reference areas (or materials) and their survey and/or Yes, ONiA sampling results included along with a justification for their selection? _ _
10 Are applicable survey and/or sampling data that was used to determine variability included? Yes ITA_
11 Will the condition of the survey area have an impact on the survey design, and has the 6eDs WA probable impact been considered in the design?h Has any special area characteristic including any additional residual radioactivity (not 12 previously noted during characterization) been identified along with its impact on survey Yes (
design?
13 Are all necessary supporting calculations and/or site procedures referenced or Included? NtA 14 Has an effective DCGLw been identified for the survey unit(s)? N/A 15 Was the appropriate DCGLEMc included in the survey design calculation? oe N/A 16 Has the statistical tests that will be used to evaluate the data been identified? Yes N/A 17 Has an elevated measurement comparison been performed (Class 1 Area)? es) N/A 18 Has the decision error levels been identified and are the necessary justifications provided? Yes A 19 Has scan instrumentation been identified along with the assigned scanning methodology? CY NWA 20 Has the scan rate been identified, and is the MDCscan adequate for the survey design? tes)NA 21 Are special measurements e.g., in-siu gamma-ray spectroscopy required under this design, Yesa; and is the survey methodology, and evaluation methods described? ___
22 Is survey instrumentation calibration data included and are detection sensitivities adequate? (Ys) WA 23 Have the assigned sample and/or measurement locations been clearly identified on a diagram Ye N/A or CAD drawing of the survey area(s) along with their coordinates?
24 Are investigation levels and administrative limits adequate, and are any associated actions ll A clearly indicated? A _"
25 For sample analysis, have the required MDA values been determined.? Yes, A 26 Has any special sampling methodology been identified other than provided in Reference 6.3? Yes NA NOTE: a copy of this completed form or equivalent, shall be included within the survey design calculation. Us
?-- SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 0 Page 8of_4__
Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Attachment 2 Sample Results for SSGS Footprint T 112 (d T 12 (d) T 12 (d) T 12 (d) T 12 (d) T 12 (d) 1 157861.051 1925.23275 1 11019.59251 32050.68751 8813847.751 10446.151 Am.241 Co4O Cs-137 PU.23S Pu.239 SrO90 LocattonlDesciptlon Am.24t Co40 Cs-t37 PUF23J PLF239S S.90 SSGS FodptM AV-134. t7-S.Wd *2 0.0995 0.0327 1.3931 0.0014 0.0060 0.0277 e
Sedma Ittese . SSGS East SurnP 25, AV183. Wa of 0.0875 1.9646 78.9405 0.0292 0.0400 SSGS Fodtr AT.139 e 6 0.0199 0.0328 0.2508 0.0068 0.0050 0.0185 SSGS FO t AT.139. 9'.12.Wef 54 0.0199 0.0328 0.3065 0.0015 0.0050 0.0167 SSGSFo1rttAW-132 2V. Weit 3 0.0090 0.0262 0.4365 0.0019 0.0060 0.0278 SSGS Fhot Wes't Ttwe SumP be AV-134 (PurPed) 0.1294 0.1329 6.2384 0.0068 0.0120 0.0185 SSGS FOCtO East TLrne Smp eAV-133 (PalnPd) 0.1990 0.2459 91.0626 0.1952 0.2000 0.0556 SSGS FodotpoCdteofat Tw*re AW.132 (Pamped) 0.0398 0.1330 5.1214 0.0146 0.0160 0.0186 SSGS Fort, WdX47 Pumped Sedwt 0.0697 1.0260 72.0571 0.2932 0.1700 SSGS NatlhSump 0.0040 0.0510 2.4127 0.0039 0.0030 0.0094 SSGS SE Sump. AU-133. SR-0003 0.0139 0.3941 150.4871 0.0029 0.0040 0.0189 SSGS SAh East SumP SedmwtAV-133 0.0889 0.3847 84.0773 0.0647 0.0381 0.1473 SSGS Mezywe E st. SR-0004 0.7064 1.6667 37.5482 0.3240 0.3300 0.1702 SSGS Nari Sump Paibe a - 4' Fpe 0.0528 0.2091 4.1717 0.0098 0.0040 0.0474 SSGS. East. DiSk 91 0.2890 1.5060 627.5376 0.0452 0.1450 0.0474 SSGS Foc t. East. SR-0004. NW &Smp 0.1356 0.1 o7 11.0809 0.0030 0.0030 0.0858 SSGS Fotwt. C.er Seaci. Ccre Ba e2. as kX. .1ra StuJctre 0.0478 0.0308 0.2580 0.0482 0.0490 0.0572 SSGS 790'E... East - Debtm FrwrmRerp Stad Smllt FPie 0.1097 3.1170 2999.1594 0.0690 0.0800 0.0382 SSG6 S 4-'ros O0 Lrre -Sump to SumP - 79 S. 0.0670 0.3719 111.1883 0.1442 0.0875 0.1386 SSGS Foctp Sampe 4 5. Caw et Flom Cre - SR-56. Bukdv Studire 0.1320 0.0569 3.7134 0.1158 0.0386 0.0168 Me an= , 1.16E401 5.76E-01 214E+02 6.91E.02 6.21E-02 5.34E-02
% o1Tolal. 0.054% 0.268% 99.593% 0.032% 0.029% 0.025%
Modanz 7.86E402 1.71E401 8.66E+00 2.19E42 2.70E22 3.30E-02 Slgman ,1.56E41 8.47E4 1 6.70E+02 9.80E42 8.68E42 4.96E-02 2 Sigma + Y *ean= 4.27E401 2.27E+00 1.55E+03 2.65E401 2.36E401 1.53E401
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 0 Page 9 of_14_
Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Attachment 3 SSGS Footprint Effective Area DCGL for Cs-1 37 (dpml100 cm2)
Effective DCGL Calculator for Cs-137 (dpmf100 cm^M2) 1 ls fvi l 17498 IdpnM1O cM2 l 13124 ldpnflOO cM2 l 25 nrvy TEDE Unit C ur37t i~~ -UT Cs Adirfsbade Lk* f1 SAM PLE N0(s)n lSSGS;FoSpdnt I 17461 ldpnr100crn2 l 13095 IdprVlDOcnm2 IXsSNECALil 75% 1 SanVk Input (pCUg. Individual Units Allowed dpnlOO0 Beta dpWIDO Alpha dpnYOO0 Isotope uCI, etc.) % o Total (dprrVlO0 cnm`2) cmnr2 mnem-y TEDE cmr 2 c_ __2
. Am-241 4.27E-01 0.027% 27 4.81 4.45 - A4.81 __Am-241 2 C-14 0.000% 3,700,000 0.00 0.00 0.00 C4 3 Co-60 2.27E+00 0.146% 7,100 25.57 0.09 25.57 . . Co-60 4 C-137*0"r* gi*M5E.03-,, qe,,r9.784% C-Vema,000 AM746.65,,w~ ~2,15 59- -vfx 74W.6 w~~W S 17~
5 Eu-152 0.000% 13,000 0.00 0.00 0.00 WA Eu-152 6 H-3 0.000% 120,000,000 0.00 0.00 NotDetectable . H-3 7 NI-63 0.000% 1,800,000 0.00 0.00 Not Detectable NA-Ni63 8 Pu-238 2.65E-01 0.017% 30 2.99 2.49 : 2A 299 Pu-238
< Pu-239 2.36E-01 0.015% 28 2.66 2.37 A 2.66 Pu-239 IC Pu-241 0.000% 880 0.00 0.00 Not Detectable I N /A- Pu-241 11 Sr-90 1.52E-01 0.010% 8.700 1.71 0.00 1.71 Sr-90 100.000% 17498 25.0 17488 10 --- I 4
Ma~dmumi Peffrissblbe dpnVIOO crnv2
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 0 Page 10 of 14 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Exhibit 4 Sample Results for CV Pipe Tunnel (SSGS Side)
SNEC SAMPLE RESUL TS LAB or LAB No. LocationlIoscriptia" 8WXT. 0102059-01 CV Tunnel Sediment conposite. 01 SNEC Sample No. 359 CV Tunnel Comments:
Other Identifier l CV Yard Soil Analysis Date=> February 14, 2001 Isotope pCIV (solilds) or pCmllf wmrlorpci liftsmeirs) 1 Am-241 < 0.18 2 C-14 < 9.34 J Cm-243 _____
4 Cm-244 < 0.18
- Eu-154 < 0.09 0 Eu-155 < 0.67 1 Fe-55 < 54.99 2 H-3 < 9.4 I Nb-94 < 0.03 4 Ni-59 < 43.81 6 Ni-63 < 4.02 S Pu-238 < 0.55 7 Pu-239 <0.22 B Pu-240 <0.22 S Pu-241 44.69 o Pu-242 < 0.22 1 Sb-125 < 1.03 2 Sr-90 9.67 2 Tc-99 < 1.91 4 U-234 1.12
! U-235 < 0.46 B U-238 1.46 Other Isotopes
- pCvg (soilids) or pCUI(Wwatirl or pCI (if snears)
On-she Analysis for Cs-1i37 On-site Analysis for Co-60 On-site Analysis for H-3 1-129 < 5.02 Gross Alpha 17.1 Gross Beta K-40 _
Ra-226 _
Th-232 _
Cm-242 < 0.19 Th-22S _
Np-237 < 0.24 Ce-144 < 1.33
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 0 Page 11 of 14 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Exhibit 5 CV Tunnel (SSGS Side) Effective Area DCGL for Cs-1 37 (dpm/1 00 cm2 )
Effective DCGL Calculator for Cs-137 (dpmil00 cmA2) I I 10705 IdprmOO cm^2 l 8029 Idpml100 Cm^2 250:1mremly TEDE Umit 0431 iX7,Os-t137Admki~v
,UmftCf sbfiv. f SAMPLE NO(si ICV Steam Tunnel ISSGS Slde) 10170 ldpml100 cmA2 l 7628 ldpml00 cm^2 ictSNEC ALTI 75%
Sanple Input (pCUg, Individual Limits Allowed dpmMOO Beta dpml100 Alpha dpml100 Isotope uCketc.) %ofTotal (dpmr100cmA2) cm^2 mrenVyTEDE cm^2 cm^2
. Amn-241 _0.C0% 27 O .00) OO :WA O.. Arn-241 2 C-14 9.34E+00 0.710% 3,700,000 75.99 0.00 75.99 . A C-14 3 Co-60 1.26E+00 0.096% 7,100 10.25 0.04 10.25 -A Co-So 4 Cs137.* 'i25E4Oe -5.W04% i-2a,O00 ai01OVD.13-j ,
-'9.CB .. 1O170
-A .C.1374ytsX 5 Eu-152 0.000% 13,000 0.00 O.0 .00 Eu-152 6 H-3 0.00% 120,000,000 0.0 0.00 Not Detectable WA H-3 7 Ni-63 O.OD0% 1,800,000 0.00 0.00 Not Detectable A Ni-63 I Pu-238 5.50E-01 0.042% 30 4.47 3.73 A 4.47 Pu-238 I Pu-239 2.20E-01 0.01 7% 28 1.79 1.6D WA 1.79 Pu-239 10 Pu-241 4.47E+01 3.397% 880 363.6D 1033 Not Detectable ' A Pu-241 11 Sr-90 9.67E+00 0.735% 8,700 78.68 0.23 78.68 Sr-90 100.0C0n6 10705 25.0 10335 6 Maximum Permissible dpnMO0 cm^2
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 0 Page 12 of _14_
Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Exhibit 6 CV Steam Pipe Tunnel (SSGS side)
South Wall i
68.5 E 73-East Wall 24' I
CV Tunnel Floor H - Opening
- Opening 488' I-- - ---- I Opening -A, 73' 68.51 i
North Wall
. -SNECCALCULATION SHEET.'
Calculation Number Revision Number Page Number E900-03-019 0 Page 13 of 14 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Attachment 7 SSGS Footprint Firing Aisle & Top of Seal Chambers NORTH
_ + _
TOP OF SEAL CHAMBER I & 2 SSI8 (floor)
TOP OF SEAL CHAMBER3 SSGS FIRING AISLE & SEAL CHAMBER TOPS PLAN EL. 806'-0'
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 0 Page 14 of 14_
Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Attachment 8 SSGS Footprint Basement (790')
SSGS FOOTPRINT PLAN EL. 790'-O"
Control Copy ___
Shonka Research Associates. Inc.
4939 Lower Roswell Roaid, Suite 106 Marietta GA 30068 770-309-7606 Surface Contamination Monitor SCM Procedure 001, Rev6 Confirmation and Calibration of the Incremental Encoder
SCM PROCEDURE 001, REV6 DATE: 9/7101 PAGE 2 OF 14 TITLE. CONFIRMATION AND CALIBRATION OF THE INCREMENTAL ENCODER Table A 1. Revision Table REVIEWED BY: D. DEBORD BRIEF
SUMMARY
OF CHANGES Added details on how to name the survey name that is also the SCVI filename.
QA REVIEW BY: D. SHONKA I DATE:
.!-I i 9/7/01 EFFECTIVE DATE: 9/7/01
SCM PROCEDURE 001, REV6 DATE: 917101 PAGE 3 OF 14 TITLE: CONFIRMATION AND CALIBRATION OF THE INCREMENTAL ENCODER
- 1. Purpose This procedure establishes the methods for calibration and verification of the incremental encoder included on the SCNI.
- 2. Scope and Limitations This procedure applies to version 2.0 or later of the process software. Any SCM used to conduct a rollins survey must have completed a valid encoder confirmation. Perform a new encoder confirmation if any of the followin2 occur.
- 1. Maintenance on the encoder
- 2. Disassembly/re-assembly of the cart
- 3. Adding a new computer, software. or encoder to the cart.
- 4. 24 months since last confirmation
- 5. Operator notices anomalies in the reported strip length Perform a calibration whenever the mean of an encoder confirmation exceeds I ,error.
ITEM DESCRIPTION The Surface Contamination Monitor is a mobile platform SCNI containing detectors. support electronics, and data logger used for conducting radiological survevs.
Incremental Encoder Electronic device used to measure rotation .
l eMaximum survey speed determined to support required Taret Survey SpeedDA A ..... M m D.e NIDA NRlnirn um Detectable Activity...
- 4. General Information The incremental encoder provides a method of determining the distance traveled by the SCN. The encoder turns and generates TTL level pulses at regular intervals. A calibration factor in pulses per inch allows the SCNI to determine distance by number of pulses. This calibration factor could be determrined by dividing the pulses per rotation by the circumference of the wheeL To reduce the impact of measurement error this procedure determines the calibration factor by rolling the cart a known distance and dividing by the pulses received by the counter card in the SCM to get a pulselin factor.
SCM PROCEDURE 001, REVS DATE. 9/7101 PAGE 4 OF 14 TITLE. CONFIRMATION AND CALIBRATION OF THE INCREMENTAL ENCODER The user must be cautious to operate the SCM in straight lines parallel to the measuring tape. Failure to do so can result in distance errors of more than 1%.
- 5. Materials, Equipment, and Supplies Table 2. Materials, Equipment, and Supplies.
ITEM SPECIFICATION SCM\l Model 3 SCMI Process Software Version 2.0 or later Tape Mleasure 3() ft. 1() m. or longer
........................................................................... I.............................................................................................................................................
Tape must be suitable for securing tape measure to tloor surface such as electrical tape.
- 6. Responsibilities 6.1. Operator
- 6. 1.1. Reads and becomes familiar with this procedure hecore pertorming calibration.
6.1.2. Has successfully completed SCNI I trainine.
- 6. 1.3. Performs measurements in accordance to this procedure.
- 7. Procedure NOTE: Anv means that is ssitablefor securing the tape ,neasure to thel7oo} may be suibstitutedfor electrical tape.
7.1. Confirmation of encoder for use in US mode 7.1.1. Secure the tape measure to the floor with a piece of electrical tape at the zero inch mark.
7.1.2. Extend the tape measure and secure it to the floor at a distance not less than 30 feet with a second piece of electrical tape.
7.1.3. Record the distance in inches on the "Incremental Encoder Calibration Verification Data Sheet for Use in Inch Mode" provided in Appendix A.
7.1.4. If the SCMI is powered off, turn on the system and launch the process software.
SCM PROCEDURE 001, REV6 DATE, 97101 PAGE 5 OF 14 TITLE: CONFIRMATION AND CALIBRATION OF THE INCREMENTAL ENCODER 7.1.5. If the target survey speed is less than 2 in/sec, set the motor controller to 2 in/sec, else set the motor controller to the tar-et survey speed.
7.1.6. Enter a new survey name. See SCMI Procedure 011.
7.1.7. Position the SCMI at either piece of electrical tape.
- 7. 1.8. Initiate the measurement by pressing the <Enter> key.
7.1.9. Roll the cart forward until and line up with the opposite piece of electrical tape.
NOTE: The cart must be kept traveling in a straight line. The operatorma! use the tape measure and a fired point on the frame to guide the cart. In addition, take care when aligning the cart to the tape to avoid parallarerror.
- 7. 1.10. Complete the measurement by pressing the <Enter> key.
7.1. 11. Record the reported strip length in inches on the "Incremental Encoder Calibration Verification Data Sheet for Use in Inch Mlode" provided in Appendix A.
7.1.12. Follow the soitware prompts and repeat steps 7.1.7- 7.1.1 I lwo additional times.
- 7. 1. 13. Proceed to Section S. 1 and perform acceptance criteria calculations.
7.2. Confirmation of encoder for use in metric mode 7.2. 1. Secure the tape measure to the floor with a piece of electrical tape at the zero meter mark.
7.2.2. Extend the tape measure and secure it to the floor at a distance of 10 meters or more with a second piece of electrical-tape. J 7.2.3. Record the distance in meters in the "Actual Distance" blaiik on the Incremental Encoder Calibration Verification Data Sheet for Use in Metric Mode" provided in Appendix B.
7.2.4. If the SCNI is powered off, turn on the system and launch the process software.
7.2.5. If the target survey speed is less than 2 irdsec, set the motor controller to 2 in/sec. else set the motor controller to the target survey speed.
7.2.6. Enter a new survey name. See SCMI Procedure 011, "Survey Namine Convention when Usine the SCM".
7.2.7. Position the SCNI at either piece of electrical tape.
7.2.8. Initiate the measurement by pressing the <Enter> key.
SCM PROCEDURE 001, REVI DATE. 917101 PAGE 6 OF 14 TITLE: CONFIRMATION AND CALIBRATION OF THE INCREMENTAL ENCODER 7.2.9. Roll the cart forward and line up with the opposite piece of electrical tape.
VOTE: The cart must be kept traveling in a straightline. The operatormail use the tape measure and a fixed point on the frame to guide the cart. In addition, take care iwhen aligning the cart to the tape to avoid parallarerror.
7.2. 10. Complete the measurement by pressing the <Enter> key.
7.2.11. Record the reported strip lengths in inches in the Strip Distance Table on the form "'Metric NMode Incremental Encoder Calibration Verification Form" provided in Appendix B.
7.2.12. Follow the software prompts and repeat steps 7.2.7- 7.2.1 1 two additional times.
7.2.13. Proceed to Section 8.2 and perform acceptance criteria calculations.
7.3. Encoder Calibration This section uses the "Encoder Calibration Data Sheet" provided in Appendix C.
7.3.1. Perform conhirmation measurements outlined in 7.1 or 7.2 depending on mode of operation.
7.3.2. Record the mean of the three confirmation measurements in the "Distanceold.- blank.
7.3.3. Record the old encoder calibration constant (found on line 7 of the FMI.DEF file) in the "Constantold" blank.
7.3.4. Record the target distance in the "DistanceT rC" blank. ,r S ;
mode the target distance will be the actual distance travelqd. Use Equation 4 to calculate the target distance for Metric mode.
7.3.5. Calculate, the new encoder constant using Equation 1.
Equation 1. Calculation for encoder constant.
CONS TANTO1d
- DISTANCEO1d!
!CONSTANT, DISTA2cET, 7.3.6. Record the new encoder constant in the "Constant VCW' blank.
7.3.7. Update Line 7 of F M.DEF with the new encoder constant.
7.3.8. Perform encoder confirmation in steps 7.1 or 7.2 depending on mode of operation.
SCM PROCEDURE 001, REVS DATE., 917101 PAGE 7 OF 14 TITLE., CONFIRMATION AND CALIBRATION OF THE INCREMENTAL ENCODER
- 8. Acceptance Criteria 8.1. Acceptance Criteria for US mode 8.1.1. Calculate the mean of the three measurements and ensure that it is within I % of the actual distance traveled by the SCMNI.
8.1.2. Calculate the percent deviation from the mean for each of the three measurements using equation 2 and ensure that the deviation for each measurement is below 3%-.
Equation 2. Calculation for percent deviation from the mean.
,Deviarion.,= l lean,,e, -Measuremenrflfl Vfean.:,,,
8.1.3. Record the mean and percent deviation from the mean for each measurement on the "Incremental Encoder Calibration Verification Data Sheet for Use in Inch Nlode- provided in Appendix A.
S.1.4. If the deviation trom the mean is largzer than 3% for any measurement. repeat the confirmation test or troubleshoot encoder svstem.
- 8. 1.5. If the mean of the thrce measurements differs from the actual distanct hv more than 1%,r. proceed to 7.3 and perform calibration.
8.2. Acceptance Criteria for Metric mode 8.2. 1. Convert the Actual Distance in meters to Target Distance in inches using Equation 4. Equation 3 provides the derivation.
Equation 3. Target distance in inches derivation.
100,e ee
- TarqgezDistance,,c, = AcntalDistanceme,e, X X chlpIxd?
5cm I Pues, Equation 4. Calculation of target distance in inches.
. TargetDistance. nc = ActualDistanceme, x 4inch meer 8.2.2. Record target distance on the form "Incremental Encoder Calibration Verification Data Sheet for Use in Metric Mode" provided in Appendix B.
8.2.3. Record the mean and percent deviation from the mean for each measurement on the "Incremental Encoder Calibration Verification Data Sheet for Use in Metric Mode" provided in Appendix B.
8.2.4. Calculate the mean of the three measurements and ensure that it is within I% of the target distance.
SCM PROCEDURE 001, REV6 DATE. 917101 PAGE 5 OF 14 TITLE. CONFIRMATION AND CALIBRATION OF THE INCREMENTAL ENCODER Equation 5. Calculation.... for percent deviation from the mean for metric mode.
.io . Meani,",, - Measurement1.,h Deviation. = Meanmch l
8.2.5. Calculate the percent deviation from the mean for each of the three measurements using Equation 5 and ensure that the deviation for each measurement is below 3%.
8.2.6. If the deviation from the mean is lar-er than 3% for any measurement. repeat the confirmation test or troubleshoot encoder.
98.2.7. If the mean of the three measurements differs from the target distance by more than I%. proceed to 7.3 and perform calibration.
- 9. References 9.1. NIA
- 10. Required Records 10.1. Incremental Encoder Calibration Verification Form 10.2. SCM Procedure 011, 'Survey Naming Convention when Using the SCM"
- 11. Appendices 11.1. Appendix A: Incremental Encoder Calibration Verification Data Sheet for Use in Inch Mode 11.2. Appendix B.: Incremental Encoder Calibration Verification Data Sheet for Use in Metric Mode
.I 11.3. Appendix C: Encoder Calibration Data Sheet II
SCM PROCEDURE 001, REVS DATE. 917101 PAGE 9 OF 14 TITLE: CONFIRMATION AND CALIBRATION OF THE INCREMENTAL ENCODER Appendix A Incremental Encoder Calibration Verification Data Sheet for Use in Inch Mode
- 1
SCM PROCEDURE 001, REVS DATE. 917/01 PAGE 10 OF 14 TITLE: CONFIRMATION AND CALIBRATION OF THE INCREMENTAL ENCODER Inch Mode Incremental Encoder Calibmrion Verffication Forfn DATE: SCM SERIALNUMBER:
SCM SPEED: ACTUAL IN/SEC DISTANCE: IN Table 3. Strip lengths.
MEASUREMENT l DISTANCE (INCHES) DEVIATION FROM MEAN l 2 1 ___ 1 _ __ _
2 MEAN l XXXXXXXX MEAN VARIANCE FROM ACTUAL DISTANCE: _ _
INITIALS MEAN VARIANCE FROM ACTUAL DISTANCE LESS THAN 1%;
INITIALS DEVIATION FROM MEAN FOR EACH MEASUREMENT WITHIN 3°' OF THE ACTUAL MEASUREMENTS INITIALS PASSED INITIALS FAILED WHY:
PERFORMED BY: DATE:
REVIEWED BY: DATE:
SCM PROCEDURE 001, REV6 DATE. 9/7101 PAGE 11 OF 14 TITLE. CONFIRMATION AND CALIBRATION OF THE INCREMENTAL ENCODER Appendix B Incremental Encoder Calibration Verification Data Sheet for Use in Metric Mode
.1
SCM PROCEDURE 001, REV6 DATE. 9/7101 PAGE 12 OF 14 TITLE: CONFIRMATION AND CALIBRATION OF THE INCREMENTAL ENCODER Metric Mode Incremental Encoder Calibration Verification Form DATE: SCM SERIALNUMBER:
SCM SPEED: INISEC ACTUAL DISTANCE: METERS TARGET DISTANCE: -INCHES Table 4. Strip lengths.
MEASUREMENT l DISTANCE (INCHES) f DEVIATION FROM MEAN (%o)
I I _ __I ___
2 _ __ _ __
l I1 MEAN l l XXXXXXXX MEAN VARIANCE FROM ACTUAL DISTANCE: °:
INITIALS MEAN VARIANCE FROM ACTUAL DISTANCE LESS THAN 1%'
INITIALS DEVIATION FROM MEAN FOR EACH MEASUREMENT WITHIN 3%aOF THE ACTUAL MEASUREMENTS INITIALS PASSED INITIALS FAILED WHY:
PERFORMED BY: DATE:
REVIEWED BY: DATE:
SCM PROCEDURE 001, REVS DATE., 917101 PAGE 13 OF 14 TITLE: CONFIRMATION AND CALIBRATION OF THE INCREMENTAL ENCODER Appendix C Encoder Calibration Data Sheet
SCM PROCEDURE 001, REVS DATE.' 9/71 PAGE 14 OF 14 TITLE: CONFIRMATION AND CALIBRATION OF THE INCREMENTAL ENCODER Encoder Calibration Form DATE: _ SCM SERIALNUMBER:
SCM SPEED: IN/SEC ACTUAL DISTANCE: INCH Note fhis test at thi <ntendedi speednI ethe surse~y Is
- ies 2Grilsecf surves speed f e~~~~~
- ~~. a g ',. Je~
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INITIALS LINE 7 OF FM.DEF UPDATED WITH CONSTANTNw INITIALS PERFORM ENCODER CONFIRMATION INITIALS PASSED INITIALS FAILED WHY:
PERFORMED BY: DATE:
REVIEWED BY: DATE:
Control Copy ___
Shonika Rcsearch .\Associates Itic.
4939 Lower RosweU Road. Suite 106 Mfarierta G.\ 30068 770,409-7606 Surface Contamination Monitor SCM Procedure 005, Rev6 Requirements for Completion of a Survey Using the SCM 4.
SCM PROCEDURE 005, REV6 DATE: 7117103 PAGE 2 OF 9 TITLE: REQUIREMENTS FOR COMPLETION OF A SURVEY USING THE SCM Table A 1. Revision Table BRIEF
SUMMARY
OF CHANGES Updated responsibility section, general typos, made references to response and 005 MN.),farcial i 97..01 dailv checks uniform, added
! ! reference to SCM Procedure lI OOG and 011.
Added text that references I 006 i 1. Kellev D. DeBord 7. 17. 0 th MDCs set forbythe client to sections 4.1 and 7.. 4.5
- w QA REVIEW BY: D. SHONKA I DATE:
I X _ j 7/17/03 i EFFECTIVE DATE: 7/17/03 A
SCM PROCEDURE 005, REV6 DATE 7/17103 PAGE 3 OF 9 TITLE.: REQUIREMENTS FOR COMPLETION OF A SURVEY USING THE SCM
- 1. Purpose This procedure details the requirements for completion ofa survey using the SCMN1.
- 2. Scope and Limitations This procedure applies to version 2.0 or later of the SC.MI process softvare.
ITEM DESCRIPTION The Surtace Contamination .Monitor is a mobile platform SCMI containing detectors. support electronics, and data logger used for conducting radiological surveys.
Survyc Information Mlanagement Svstem - SIMIS is flexible and comprehensive interfacing software for the SRA SCM. SLS processes the SCNI instrument data with a sophisticatcd data parser, integrated spreadsheet, and powerful special functions such SL\1S as spatial data filters. SlIMS provides the most flexible reporting system available for printing survey records or complete stand-alone survey reports. S-IAS contains all the tools needed to meaninifuliv communicate between the SCNI and the data analysis teamn.
Position Sensitive Proportional Counter- This is a radiation detector that is capable of establishing where alongtfie detectora pulse is sensed (the system is described in NNUREG/CR-6450).
PSPC The detectors are similar in efficiency to other counters, but have backgrounds associated with small area detectors (5cm x 5cm).
This results in improved sensitivity, due to low background, and specific identification of the location of the radioactivity. The PSPCs may be fabricated in any length.
SRC Source Response Check - Determines if the system is operating the same from dav-to-dav.
Performance Based Check - Determines the svstem efficiency and performance.
SCM PROCEDURE 005, REVO DATE: 7117103 PAGE 4 OF 9 TITLE: REQUIREMENTS FOR COMPLETION OF A SURVEY USING THE SCM
- 4. General Information 4.1. Rolling Mode Check the wheel encoder upon arrival on site per "SCMI Procedure 001I '. Check the PSPC per "SCMvf Procedure 007".
The Project Mlanager establishes the survev speed based on the isotopes of concern and the desired sensitivities set forth bv the client. The SCMN system is capable of concurrent alpha, beta and ganmma surveys.
An SCNI survey uses the concept of sun ey strips. SINIS reassembles the strips to provide complete documentation of a survey without requiring any manual transfer of data. The operator makes a crude sketch of tile area and indicates the direction and start point of each strip. Record the filename of the sunrev on the sketch and if available.
note a reference coordinate for one of the comers of the survev area. The surface does not need to be pre-gidded. Mlark the surface into survey lanes using a chalk line or other markings. The w-fheel encoder enables tracking ofdistance down each lane.
Markings on the detector hoLusing- allow the operator to align the detector to the lane.
Each lane is twice as wide as the detector. Typical survey lanes arc about 12 feet w ide.
Start the SCM sofhare if it is not already active and enter the sunrey parameters:
- Survey Name (Filename).
e Room ID. and
- Equipment ID.
Use the speed indicator on the computer display to adjusted to the proper survey speed.
After establishing the speed, disengaged the motor and position the SCM vith the. front of the first PSPC at least 10 cm before the start of the first survey lane. Start the motor and begin logging data as the leading edge of the first PSPC enters the survey lane by pressing the <Record>.button. The motor maintains a constant speed, while the operator guides the cart down the lane unless using the fly-by-wire or autonomous carts. Upon reaching the end of the lane. press the <Stop> button on the SCMN screen and optionally disengaged the motor. Position the cart to record the next lane. Repeat this process until completing the survey.
Change the filename and optionally the Room ID to prepare the instrument for the next survey area. The display provides information during the survey process, such as.
survey name, strip number, distance traveled in strip, target speed and current speed, alarm set points, and detector data. Two different display types for the detector data exist in the SCNI process software. For a pixilated image of the flux from the floor with color corresponding to intensity, select the visualization screen. For a more
SCM PROCEDURE 005, REV6 DATE 7117/03 PAGE 5 OF 9 TITLE. REQCIIREMENTS FOR COMPLETION OF A SURVEY USING THE SCM traditional feel, select the bar graph screen that has rows corresponding to roughly 4-inch bins across the detector. The system also provides visual and audible alarms to the user to indicate problems with operating parameters such as speed. The SCNI logs data to the disk drive from anv combination of the detectors while the <Record> kev is active. This permits reassembly of the data in the SLCIS application.
4.2. Corner Mode Use the comer detector operated in a data-logging mode to survev areas not accessible wvith the SC.M0 attached to the motor driven cart. The output of corner mode is compatible with S1NIS. The comer detector is a PSPC operated in a similar fashion to the SCNI rolling survey, but with a fixed time interval for each detector placement and data acquisition. The Project Manager establishes the time inten al to provide a sensitivitv that is consistent with that established for the rolling mode.
Mleasure out 10 cm strips along the surface being measured. Start the SCNI software if it is not already active and enter the survey parameters: Survey Name (Filename).
Room ID. and Equipment ID. Position the detector between the first set of marks and press <Record> button in the SCM'A process software. At the end of the preset time interval, the system stops recording. Move the detector into the next position. and record the next strip. Repeat this process until completing the survey.
Materials, Equipment, and Supplies Table 2. Materials, Equipment, and Supplies.
ITEM SPECIFICATION SCM Mlodel 3 SCMI Process Soffivare Version 2.0 or later PSPC Typical lengths include 0.9 and L.S meter Tape Measure 30 ft, 10 m. or longer Chalk Line 30 ft. 10 m. or longer depending on survey lane length Check Source Alpha. beta or gamma as appropriate
- 6. Responsibilities 6.1. Project Manager 6.1.1. Reads and becomes familiar with this procedure.
6.1.2. Ensures all surveys are performed according to this procedure.
SCM PROCEDURE 005, REVS DATE. 7117103 PAGE 6 OF 9 TITLE: REQUIREMENTS FOR CONfPLFTION OF A SURVEY USING THE SCM 6.1.3. Establishes the rolling mode speed and detector height.
6.1.4. Establishes the comer mode count time and detector height.
6.2. Operator 6.2.1. Reads and becomes familiar with this procedure before perfoming calibration.
6.22.2. Performs all surveys according to this procedure.
6.2.3. Operates the SCO during the survey.
6.2.4. Guides and monitors the SCMl's speed throughout the surnees.
6.2.5. Has successfully completed SCM I training.
- 7. Procedure 7.1. SCM Preparation 7.1.1. Remove the protective cover fromt tile detector housiiw.
7.1.2. Set the detector housing to the proper height tbr the survey.
Perform alpha surveys With the detector set at 1;'"above tile surface or as directed by the Project Manager. Be!a surveys may vary from U/4" to 3;4" depending on thie isotope. Verify the setting with the Project NManager.
- 7. 1.3. Set the high voltage control on the electronics module to "Alpha' for alpha surveys and "Beta" for beta surveys.
7.1.4. Power on the G.-M Rate Mleter, if conducting a concurrent GLM survey.
7.1.5. Purge the detector and insure that P- 10 gas flow is indicated on the outlet flow Qauoes.
7.1.6. If this is the initial project survey perform steps 7.2; else proceed to step7.3.
7.2. Confirmation of Operation (Performed at beginning of project and as required by referenced procedures) 7.2.1. Launch SCM process software.
7.2.2. Verify PSPC position response. In addition, if required, perform a position calibration in accordance with "SCLM Procedure 006".
SCM PROCEDURE 005, REV6 DATE. 7117103 PAGE 7 OF 9 TITLE: REQUIREMENTS FOR COMPLETION OF A SURVEY USING THE SCM 7.2.3. Perform encoder calibration per "SCMv Procedure 001". Perform the encoder calibration at the beginning of each project, and after maintenance affecting the encoder wheel.
7.3. Survey Setup 7.3. 1. If this is the beginning of a shift, perform PSPC daily source response check (SRC) per "SCNI Procedure 007". Perform the SRC at the beginning of each shift. Perform periodic performance based response checks (PBC) during the survey in accordance with "SCNI Procedure 007".
7.3.2. Mlake a crude sketch of the survey area including distances, if a CAD drawing is not available.
7.3.3. Identifv and mark survey lanes using a tape measure and chalk line or other markings.
7.3.4. Indicate strip locations and directions on sketch with arrows.
7.3.5. Record the Filenamie of the survey on the sketch.
7.3.6. ldcntifv SW comer on drawing and if available provide a reference coordinate.
7.4. Rolling Survey Operations 7.4.1. When prompted, enter a survey name and record the name on the sketch. See "SC.MI Procedure 01 1" for survey naming conventions.
7.4.2. Confirm the PSPC detector in the "Supervisor/Select Detectors" screen.
7.4.3. Confirm the operation mode is set to "Encoder".
7.4.4. Return to the operations screen.
7.4.5. Set the survey speed in the "Operator/Alarm Set Points" screen.
Survey speed for alpha surveys is normally I "/sec. Beta survey speeds may vary from 2"/sec. to 6"/sec. Verify the speed for the survey with the Project Manager who will determine one that meets the survey NIDCs.
7.4.6. Engage the motor and adjust the speed.
7.4.7. Disengage the motor.
7.4.S. Select the "Visualization" Screen.
7.4.9. Position the SCM with the front of the first PSPC at least 10 cm before the start of the first survey lane.
7.4.10. Start the motor and begin logging data as the leading edge of the first PSPC enters the survey lane by pressing the <Record> button.
SCM PROCEDURE 005, REV6 DATE. 7117103 PAGE 8 OF 9 TITLE: REQUIREMENTS FOR COMPLETION OF A SURVEY USING THE SCM 7.4.1 1. Guide the SCMI down the strip.
7.4.12. Upon reaching the end of the strip, disengage the motor.
VOTE:
.4nv1 d1eviaitionliroml the survelanale(s{trip pcta/t wvill/ result int errorsin tilhe imappilng ofs5wiface activitv.
7.4 .13. Press the <Stop> button on the operations screen.
7.4.14. Position the detector at the be2inning of the next strip aligning the markings on the detector housing with the chalk lines on the floor.
The detector housing is typically marked 10cm from each end.
7.4.1 5. Repeat steps 7.4.9 to 7.4.14 for all strips in the survey.
7.4. 16. Perform performiance based checks in accordance with -SCNI Procedure 00,".
7.5. Corner Detector Operations 7.5.1. Use the Comer detectors to acquire data in areas that arc normally not accessible to the SCNI used with the motor driven car,.
7.5.2. Set up of the comer detectors for binning constants, high voltage settings. and baseline source response checks is the same as other PSPCs.
7.5.3. Confirm tile operation mode is set to "Comer".
7.5.4. Set the timer for the time necessary to obtain count times consistent with the speed of the motor driven SCMI for the same.
area. The timer should be set for a value equal to the.'Width of the detector, typically 10 cm, divided by the travel speed/iVeri fy the timer setting with the Project Mlanager.
7.5.5. If a survey name has not been provided, enter a survey name that reflects the area (consistent with the survey name used with the motor driven cart). The "SCIM Procedure 01 1" details the naming of surveys.
7.5.6. Draw a sketch of the area, if a CAD drawing is not available.
7.5.7. Denote the location of each strip taken with the corner detector.
including any overlaps with other strips.
7.5.8. Press the <Enter> key on the keyboard or press the remoted pendant <Record> button to acquire a strip. The count will complete at the end of the preset time.
SCM PROCEDURE 005, REVS DATE: 7117103 PAGE 9 OF 9 TITLE: REQUIREMENTS FOR COMPLETION OF A SURVEY USING THE SCM 7.5.9. Perform performance based checks in accordance with SCNI Procedure 007.
- 8. Acceptance Criteria None - Specific procedures provide acceptance criteria for calibration activities.
- 9. References 9.1. SCM Procedure 001 "Confirmation and Calibration of the Incremental Encoder on Encoder Equipped Models of the SCM".
9.2. SCM Procedure 007 "Source Response Check and Performance based Checks of any PSPC Detector Configuration Installed on the SCM".
9.3. SCM Procedure 008 "Conduct of Operations for Surveys Using the SCM/SIMS". SCM Procedure 011 "Survey Naming Convention when Using the SCM".
- 10. Required Records All data acquired during the sun'ey is transferred to SIMS for processing. Thle -SCMN Procedure 00S" details the maintenance of all survev records.
- 11. Appendices NNA
Control Copy __
%/SXt\
Shonka Research Associates, Inc.
4939 Lower Roswell Road, Suite 1()
Marietta GA 30068 770-509-7606 Surface Contamination Monitor SCM Procedure 006, Rev4 Perfonnance of a Position Calibration on a PSPC
- A
SCM PROCEDURE 006, REV4 DATE. 317101 PAGE 2 OF I TITLE: PERFORMANCE OF A POSITION CALIBRATION ON A PSPC Table A 1. Revision Table REVIEWED BY: D. DEBORD REVISION AUTHOR(S)
REVIEWER(S) DATE
(()4 (X4 I. Marcial I'1 Ivarill
$=.w *' no Added revisioncoverrsheet sheet. and I
QA REVIEW BY: D. SHONKA l DATE:
S 1I 917/01 EFFECTIVE DATE: 9/7/01
SCM PROCEDURE 006, REV4 DATE. 9r7I01 PAGE 3 OF S TITLE: PERFORMANCE OF A POSITION CALIBRATION ON A PSP0
- 1. Purpose This procedure details the requirements for performing a position calibration of a PSPC detector array.
- 2. Scope and Limitations This procedure applies to version 2.0 or later of the Surf~ace Contamination M\onitor process software.
ITEM DESCRIPTION The Surface Contamination Monitor is a mobile platform containing SCNI detectors. support electronics, and data logger used for conducting radiolo!ical surveys.
Survev Inormation lanagemment Svstem - SHIMS is flexible and comprehensive interfacing software for the SRA SCMl. SIMS processes the SCNI instrument data with a sophisticated data parscr. intcgratcd spreadsheet. and powerful special functions such as spatial data filters. SIMS provides the most flexible reportimn system available for printing survey records or complete stand-alone survey reports. SIMS contains all the tools needed to meaninfullv communicate between the SCMI and the data analysis team.
Position Sensitive Proportional Counter - This is a radiation
. detector that is capable of establishing where along the detector a pulse is sensed (the system is described in NUREG/CR-6450). The detectors are similar in efficiency to other counters, by have Cbackgrounds associated with small area detectors (5rnfi x 5cm).
,This results in improved sensitivity, due to low background, and I specific identification of the location of the radioactivity. ihe manufacturer of PSPCs makes them in any length.
Peak Edge .The channel that is halfway between the maximum and minimum of the peak on the side of the peak facing the nearest MHV connector.
- 4. General Information The design of the SCM acquisition system allows several detector configurations. To this end, the acquisition engine and software provides for adjustments to allow for the differences between the attributes of the different detector configurations. The most important of these adjustments is the position calibration.
SCM PROCEDURE 006, REV4 DATE. 917101 PAGE 4 OF 6 TITLE: PERFORMANCE OF A POSITION CALIBRATION ON A PSPC The position calibration allows the software to take the recorded information by the acquisition system and map it to a position on the detector.
- 5. Materials, Equipment, and Software Table 2. Materials, Equipment, and Saftware.
ITEM SPECIFICATION
._ __ .......... ~~~~~~~~~.... .......................................
___........._._..............__._._._..._....... ._.A.._
SCNI
.~~~~~~~~~~~~~~~~~~~~~~~~.
Mdodel ______......................
......_..w. _........ .. ............... . .....___- __ ........
l SCM Process Software Version 2.) or later PSPC ...
Tvpical lengths include 0.9 and 1.8 meter Collimated alpha source or other source if'collimated alpha Check Source Isnot available STITCHER Version 3.0 or later VISU!SPECT Version 3.()or later-l
- 6. Responsibilities 6.1. Operator 6.1.1. Reads and becomes farniliar with this procedure before performing calibration.
6.1.2. Performs al] measurements according to this procedure.
6.1.3. Has successfullv completed SCNI I and SCMI II Training.
- 7. Procedure 7.1. Perform Confirmation of Position Calibration :
7.1.1. Connect a pre-amp module to each end of the detector array.
7.1.2. Place the source at the end of the intended active area of the array.
7.1.3. Press the <Acquire> button in the SCMI process software to start a one-minute acquisition.
- 7. 1.4. Verify that the peak occurs at the outer edges of the display screen.
7.1.5. If the peak does not occur at the outer edge of the display, perform steps 7.2.
. 1.6. Repeat steps 7.1.2 to 7.1.5 for the left end of the intended active area of the array.
7.1.7. Return to the operations screen.
SCM PROCEDURE 006, REV4 DATE: 97101 PAGE 5 OF 6 TITLE. PERFORMANCE OF P PosmoN CALIBRATION ON A PSPC 7.2. Set Binning Constants 7.2.1. Press the <Setup> button.
7.2.2. Press the <Supervisor> button.
7.2.3. Press the <Calibrations> button.
7.2.4. Press the <Detector Position> button.
7.2.5. Enter the position analyzer by pressing <Use Position Analyzer>
button.
7.2.5.1. Edit Detector Binning Constants using the following steps:
7.2.5.2. Place a hiih-count rate, collimated alpha source at the far left end (as you are looking at the detector from the operator's position). When using a recount detector, place the source at the left end of the primary (rear) detector. Detector ends are normally marked with tape and are inboard of the NIHV connectors. Typically. detector ends are 1) cm from the outside edge of the PSPC.
7.2.5.3. Press the (Binning Constants) button.
7.2.5.4. Press the <L> button to start an acquisition. This function positions the cursor near the left peak.
7.2.5.5. Usc the left or right arrows as necessary to position the cursor at the peak edue.
7.2.5.6. When the cursor is set, move the source to the right end of the detector. For a recount assembly, place the source under the left edge of the recount (front) detector.
7.2.5.7. Press the <L> button again to set the left channel. This action causes the cursor to move to the right peat.
7.2.5.8. Use the left or right arrows as necessary to position the cursor at the peak edge.
7.2.5.9. Press the <R> button to set the right channel.
7.2.5.10. Press the <ESC> key to return to the position analyzer screen.
7.2.6. The computer will calculate the slope and intercept using the left and right channels identified by the peaks.
7.2.7. If the detector array contains more than I detector, perform step 7.3.
7.3. Set Detector Endpoints using the Following Steps:
7.3.1. Press the <Acquire> button to start a one-minute acquisition.
7.3.2. Move a high-count rate, collomated alpha source to each end of each detector.
SCM PROCEDURE 006, REV4 DATE. 917101 PAGE 6 OF 6 TITLE: PERFORMANCE OF A POSITION CALIBRATION ON A PSPC 7.3.3. Record the peak edge of each peak.
7.3.4. Press the <Quit> button to exit the position analyzer.
7.3.5. Press the <Set Detector End Points> button to edit the detector endpoints.
7.3.6. Enter the endpoint for each detector.
7.3.7. Press the <Save> button.
7.3.8. Press the <Return to Operations> button.
- 8. Acceptnce Criteria End point verification indicates that the peak from the collimated source appears at the outer edges of the computer display screen.
- 9. Appendices 9.1. None
Control Copy #
Slionka Researcih Associates, Inc.
4939 Lowver Roswell Road, Suite 106 Mlarietta GA\ 30068 770-509-7606 Surface Contamination Monitor SCM Procedure 007, Rev7 Source Response Check and Performance Based Check of any PSPC Detector Configuration Installed on the SCM
3CM PROCEDURE 007, REV7 DATE: 7117103 PAGE 2 OF 12 TITLE: SOURCE RESPONSE CHECK AND PERFORMANCE BASED CHECK OF ANY PSPC DETECTOR CONFIGURATION INSTALLED ON THE $CM Table A 1. Revision Table REVIEWED BY: 0. DEBORD BRIEF
SUMMARY
OF REVISION AUTHOR(S) CHANGES REVIEWER(S) DATE Added cover sheet, revision sheet, Project lManager responsibilities, made l I . uniform tile namnin,2 of ;
006 1M. 0()6 l IS. .larial M1arcial X
997.T0011 checks nbrfeaigand added reference
~SCN\I Procedure 0 11. WAdded I ! .si-rna evaluation to acceptance criteria. Quality
' Control>> Performance
.. IBased Added action upon failure to meet acceptance criteria.
Section S. 1.2 and S.2.1 0(7 J. Kellw D. DeBord 7.17 I 3 include the changces. In step
-. :l 7, .1 .1 0 the steps to rcpeat arc
- 7. 1.7 to 7.1.9 not 7.1.5 to 7.1.7. FomiattinL was added to section S.
QA REVIEW BY: D. SHONKA l DATE:
7/17103 EFFECTIVE DATE: 7/17/03
SCM PROCEDURE 007, REV7 DATE: 7117103 PAGE 3 OF 12 TITLE: 3OURCE RESPCVNSE CHECK AND PERFORMANCE BASED CHECK OF ANY PSVC DETECTOR CONFIGURATION INSTALLED ON THE SCM
- 1. Purpose This procedure details the requirements for baseline source response checks (SRC),
daily SRCs and Perfomiance Based Checks (PBC) of any PSPC detector configuration installed on the SCML.
- 2. Scope and Limitations This procedure applies to version 2.0 or later of the SCMI process software.
ITEM DESCRIPTION The Surface Contamination Monitor is a mobile platform SCMI containing detectors. support electronics, and data logger used for conducting radiological surveys.
Survey Infomiation Mlanagement System - SIMS is flexible and comprehensive interfacing soflwarc for the SRA SCMI. SINIS processes the SCMI instrument data with a sophisticated data parser, integrated spreadsheet. and powerful special functions such SINIS as spatial data filters. SIMS provides the most flexible reporting system available for printing survey records or complete stand-alone survey reports. S1NIS contains all the tools needed to meaningfully communicate between the SCNI and the data analysis team.
Position Sensitive Proportional Counter - This is a r-ltion detector that is capable of establishing where along the detector a pulse is sensed (the system is described in NUJREG/CR-6450).
The detectors are similar in efficiency to other counters, but have PSPC backgrounds associated with small area detectors (5cm x Scm).
This results in improved sensitivity, due to low background. and specific identification of the location of the radioactivity. The PSPCs may be fabricated in any length.
Source Response Check - Determines if the system is operating the SRC same from day-to-day.
Performance Based Check - Determines the system efficiency and PBC performance.
SCM PROCEDURE 007, REV7 DATE. 7117103 PAGE 4 OF 12 TITLE: SOURCE RESPONSE CHECK AND PERFORMANCE BASED CHECK OF ANY PSPC DETECTOR CONFIGURATION INSTALLED ON THE SCM 4 General Information Normal operation of the SCM with a PSPC requires daily SRCs to assure that the PSPC is performing within acceptable limits. Perform this procedure at the beginning and end of each shift for each detector in use. Compare the results to the results of the dailv SRC to the baseline SRC for this project. Use the initial daily SRC for a project as the baseline SRC.
Any time a system parameter changes. take a new baseline SRC for comparison with proceeding days. Examples of altered parameters would be:
- 1. Change in high voltage.
- 2. Calibration source changed.
Perfonn Performance Based Checks (PBC) frequently through out the course of the survev. The PBCs establish the sxstem performance during the survev and are the basis for the detector efflciencv. Moreover, the PBCs affect the reported surface activitv output by SLNIS.
- 5. Materials, Equipment, and Supplies Table 2. Materials, Equipment, and Supplies.
ITEM SPECIFICATION SCIM Miodel 3 SCMI Process Software Version 2.0 or later PSPC Typical lengths include 0.9 and 1.3 meter NIST traceable source for PBCs used to establish
-.1 efficiencv. Use the same source for ail comp-risons Check Source between the baseline SRC and the daily SRCfneed not be NIST traceable).
- 6. Responsibilities 6.1. Project Manager 6.1.1. Reads and becomes familiar with this procedure.
6.1.2. Evaluates SRCs that fail the acceptance criteria.
6.2. Operator 6.2.1. Reads and becomes familiar with this procedure before performing calibration.
6.2.2. Performs all measurements are according to this procedure.
6.2.3. Has successfully completed SCM Level I training.
SCM PROCEDURE 007, REV7 DATE 7117103 PAGES OF 12 TITLE: 3OURCFZRESPONSE CHECK AND PERFORMANCE BASED CHECK Ort ANY PSPC DETECTOR CONFIGURATION INSTALLED ON THE SCM
- 7. Procedure 7.1. Source Response Check Measurement.
7.1.1. If this is a baseline SRC, use the form in Appendix A, "Baseline Source Response Check Form"; otherwise, use the form in Appendix B, "Daily Source Response Check Form". Usc this procedure for all detectors regardless of configuration. Perform all source response checks with the detector and source stationary. If desired, use a source holder so that the placement of the source to the detector is repeatable.
7.1.2. Enter the EneryviPosition analvzer by following these steps:
7.l.2. l. Press the <Setup> button.
7.1.2.2. Press the <Supervisor> button.
7.1.2.3. Press the <Calibrations> button.
7.1.2.4. Press the <Detector Position> button.
- 7. .2.5. Press the <Use Position Analyzcr> button.
- 7. 1.3. Mntake sure that there are no sources under the detector.
- 7. 1.4. Start Acquisition by pressing the <Acquire> button.
7.1.5. When the 1-minute timed acquisition ends, integrate the entire spectrum and record the measured background for the entire spectrum.
- 7. 1.6. Record the measured background on the appropriate forrf in the column labeled "Total Counts" and the row labeled "Background for Entire Array".
7.1.7. Place calibration source under the center of the detector or in contact with mylar or protective screen. When the SCNI is setup for rolling mode, it is often quicker to place the source on the ground and roll the cart to position the source under the detector. When surveying in corner mode, it is often quicker to turn the PSPC over and place the source directly on the mylar or protective screen. In any case, assure that the source to detector geometry is the same as when the baseline SRC was taken.
7.1.8. Start Acquisition by pressing the <Acquire> button.
7.1.9. When the 1-minute count is complete, record the count with calibration source on the data table in the appropriate row for the given detector of the appropriate form in the column labeled "Total Counts".
SCM PROCEDURE 007, REV? DATE: 7117103 PAGE 6 OF 12 TITLE: SOURCE RESPONSE CHECK OND PERFORMANCE BASED CHECK OF ANY PSPC DETECTOR CONFIGURATION INSTALLED ON THE SCM 7.1.10. Repeat Steps 7.1.7-7.1.9 for each detector in the PSPC array.
7.2. Source Response Check Evaluation 7.2.1. For each detector, subtract the recorded background entered in the data table in the rowv labeled "Background for Entire Array- from the recorded "Total Counts" for each detector. Enter the result in the block "Total Background Subtracted Counts".
.\Voe: If this procedureis being dlone to establish a baseline. it is now complete.
If this is a comnperison to baseline. proceed to step .7.2.2 7.2.2. Copy values in the column labeled "Total Background Subtracted Counts" from the baseline forrm for each detector onto the form "Daily Source Response Check Foml" in the column labeled "Total Baseline Background Subtracted Counts" provided in Appendix B.
7.2.3. For each detector perform the calculation shown in Equation I and record the value in the block "Percent Difference from Baseline Measurement" on the form in Appendix B.
Equation 1. Calculation of percent difference from baseline.
IT,,al B13t-AgrOIj Sub, rterld CoLniJs -Tolal Baselne BSacAgSrounI Shnr-ac:ed1 Ltuziws Tuilal Base'line Back graund SubctractIe Counts
..'. a.Compare these values with the acceptance criteria contained in Step S.1.2. If the value is greate. than the acceptance criteria. notify the Project Manager.
7.3. Performance Based Check Note: Petforbi the Petformnzance Based Check (PBC) wvit/h the detectors opiratingin the mnode in which the surveys bounded by the Performance Based Ciecks wvill be peiformzed.
7.3.1. Perform periodic PBCs throughout the course of the survey. Perform PBCs at the beginning of the shift, at least once per 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> of surveying, and at the completion of each shift.
7.3.2. Perform all PBCs using the same source. The source used for efficiency determination is acceptable but not required to be used.
7.3.3. Obtain PBCs in the same performance manner as normal surveys, i.e.
SCM speed and detector height, or timer setting and height for comer detectors.
7.3.4. Establish a survey file name for the Performance Based Checks. See SCM Procedure 01I for file naming conventions.
SCM PROCEDURE 007, REV7 DATE: 7117103 PAGE 7 OF 12 TITLE: SOURCE RESPONSE CHECK AND PERFORMANC' BASED CHECK OF ANY PSPC DETECTOR CONFIGURATION INSTALLEDON THE SCM 7.3.5. Place the source on the floor and perform a survey of the area, operating the SCMI in accordance with SRA Procedure 005. For rolling surveys, center the source along the PSPC axis 1.0 m from the leading edge of the first detector before rolling the cart over the source. For comer surveys place source on detector mylar or protective screen.
7.3.6. For comer surveys, press the <Record> button and wait until acquisition is complete. For rolling surveys press record. then start motor. Continue strip until last detector is 1.0 m past the source.
7.3. 7. Repeat the survey 3 times for each PBC.
7.3.3. Record the time, filename. strip numbers, and the source used in the logbook or survey foomi.
7.3.9. Evaluation of the PBCs for the duration of the survey occurs in the survey report issued upon completion of the sunrey.
8.1.2. Daily SRCs are acceptable if all "Percent Difference from Baseline Measurement" values are less than 20%. If a system fails to meet the acceptance criteria, all survey data taken since the last acceptable PBC or SRC will be rejected. Also, the system should be removed from service until the failure is resolved.
8.2. PBCs 3 3.2.1. Use SIMS software to process the PBC data files. Estabfish a control chart indicating the mean and "2-sigma" and "3-sigma" values.
Evaluate subsequent PBCs against the "2-sigma" and "3-sigma" criteria and for indications of adverse trends. If more than I of the 3 measurements obtained during a PBC is greater than the "2-sigma" or if any measurement is greater than "3-sigma", the PBC fails. Surveys bounded by a failed PBC are considered invalid. If a system fails to meet the acceptance criteria, all survey data taken since the last acceptable PBC or SRC will be rejected. Also, the system should be removed from service until the failure is resolved.
SCM PROCEDURE 007, REVW DATE. 7/17/03 PAGE 8 OF 12 TITLE: SOURCE RESPONSE CHECK AND PERFORMANCE BASED CHECK OF ANY PS3C DETECTOR CONFIGURATION INSTALLED ON THE SCM
- 9. References 9.1. SCM Procedure 005 "Requirements for Completion of a Survey Using the SCM".
9.2. SCM Procedure 011 "Survey Naming Convention when using the SCM".
- 10. Required Records None.
- 11. Appendices 11.1. Appendix A, Baseline Source Response Check Measurements Form 11.2. Appendix B, Daily Source Response Check Measurements Form Is
SCM PROCEDURE 007, REVW DATE! 7117103 PAGE 9 OF 12 TITLE.: SOURCE RESPONSE CHECK AND PERFORMANCE BASED CHECK OF ANY PSPC DETECTOR CONFIGURATION INSTALLED ON THE SCM Appendix A Baseline Source Response Check Form
.j
SCM PROCEDURE 007, REV7 DATE: 7117103 PAGE 10 OF 12 TITLE: SOURCE RESPONSE CHECK AND PERFORMANCE BASED CHECK OF ANY PSPC DETECTOR CONFIGURATION INSTALLED ON THE SCM Baseline Source Response Check Fonn SCM CONFIGURATION: SCM SERIALNUMBER:
HIGH VOLTAGE SETTING:
SOURCE SERIAL NUMBER OR ID: ISOTOPE:
TOTAL DETECTOR SERIAL NUMBER TOTAL COUNTS BACKGROUND SUBTRACTED COUNTS BACKGROUND FOR ENTIRE NIA NIA ARRAY DETECTOR #1 DETECTOR #2 DETECTOR #3 DETECTOR #4 DETECTOR #5 ENTER NIA FOR ALL NON-EXISTING DETECTORS PERFORMED BY: DATE:
REVIEWED BY: DATE:
SCM PROCEDURE 007, REV7 DATE. 7117103 PAGE 11 OF 12 TITLE. SOURCE RESPONSE CHECK AND PERFORMANCE BASED CHECK OF ANY PSPC DETECTOR CONFIGURATION INSTALLED ON THiE SCM Appendix B Daily Source Response Check Form
.4
SCM PROCEDURE 007, REV7 DATE. 7/17103 PAGE 12 OF 12 TITLE: SOURCE RESPONSE CHECK AND PERFORMANCE BASED CHECK OF ANY PSPC DETECTOR CONFIGURATION INSTALLED ON THE SCM Daily Source Response Check Fonn DAILY SOURCE RESPONSE CHECK CONFIGURATION SCM CONFIGURATION: SCM SERIALNUMBER:
HIGH VOLTAGE SETTING:
SOURCE SERIAL NUMBER OR ID: _ ISOTOPE:_
BASELINE SOURCE RESPONSE CHECK CONFIGURATION DATE:_
SCM CONFIGURATION: SCM SERIALNUMBER:
HIGH VOLTAGE SETTING:
SOURCE SERIAL NUMBER OR ID: ISOTOPE:
ENTER NIA FOR ALL NON-EXISTING DETECTORS INITIALS NO MEASUREMENT VARIES MORE THAN 20% FROM BASELINE INITIALS PASSED INITIALS FAILED WHY:
PERFORMED BY DATE:
REVIEWED BY:, -
DATE:
Control Copy #
Shonka Research Associates, Inc.
4939 Lower Roswell Road, Suite 106 Marietta GA 30068 770-509-7606 Surface Contamination Monitor SCM Procedure 008, Rev3 Conduct of Operations for Surveys Using the SCM/SIMS
SCM PROCEDURE 005, REV3 DATE: m7Ioi PAGE 2 OF 21 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING THE SCM/SIMS Table A_1. Revision Table REVIEWED BY: D. DEBORD REVISION AUTHOR(S) CHANGES REVIEWER(S) DATE Updated survey
) a 3
- I M){Marcial01 / N1. ,,.;9/ 7documentation P3ed. control form.
- / ~added reference to SCMI Procedure 0 11.
- 1j QA REVIEW BY: D. SHONKA DATE:
, A-- 6. S 9/7/01 EFFECTIVE DATE: 9/7/01
SCM PROCEDURE 008, REV3 DATE.- 917101 PAGE 3 OF 28 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USINC THE SCM/SIMS
- 1. Purpose This procedure establishes guidance and requirements for processing, documenting, and archiving data in support of surveys conducted with the SCMINSIvIS.
- 2. Scope and Limitations This procedure applies to version 2.() or later of the SCMI process software.
This procedure applies to all surveys performed by SPA to fulfill contractual obligations to clients or for in-house use.
This procedure does not apply to the documentation for clients that require use of their own data handling procedures: however. the requirements contained herein may still be appropriate for such instances if they do not conflict with client requirements.
ITEM DESCRIPTION The Surface Contamination Monitor is a mobile platform containimw.
SCMVI detectors. support electronics. and data logger used for conductin-radiological surveys.
Survey Information MNvanazement Svstem - SENIS is flexible and comprehensive interfacing software for the SRA SCMA. SLAMS processes the SCMv instrument data with a sophisticated data SLIS .parser. integrated spreadsheet. and powerful special functions such as spatial data filters. SENIS provides the most flexible reporting system available for printing survey records or complete stfnd-alone :
survey reports. SINIS contains all the tools needed to rmeaningfully communicate between the SCM and the data analysis team.
.......... -v.............. ............... .. _.......... _..................... . ........... ... . ... ........ . .. . ....... ..................... -.........
A data.processing feature of SIMS that allows group processing of Bac .s .multiple survey block fies. A group of files may be saved as a Batch Processins!
Batch Processing File so that the batch may be run again at a later date.
The DOS directory titled with the Project Name. This directory is
.SIS Survey used to store all elements of the survey. A detailed directory Dstructure is identified in this procedure.
SCM PROCEDURE 008, REV3 DATM 917101 PAGE 4 OF 23 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING THE SCMISIMs ITEM DESCRIPTION Position Sensitive Proportional Counter - This is a radiation detector that is capable of establishing where along the detector a pulse is sensed (the system is described in NUREG/CR-6450). The detectors are similar in efficiency to other counters, but have backgrounds associated with small area detectors (5cm x 5cm).
This results in improved sensitivity, due to low background, and specific identification of the location of the radioactivity. The PSPCs may be fabricated in any length.
Contact Sheet A list of phone numbers and addresses.
- PackingList A detailed list of all items shipped or carried by survey team
.members in support of the survey.
A daily meeting attended by survey team members conducted prior to beginning any work. The meeting serves to assign tasks and
.Plan of the Dav (POD) inform members of any operations by team members or by other teams that may affect survey activities. A daily safety meeting should be conducted as part of the Plan of Day meeting.
. A detailed description of the contractual requirements for the Scope of \Nork; survcv.
QOS IOut-of-scope work
CAD Computer Aided Design Master Drawing A diagram. map. or other drawing of the survey areas.
A daily record of survey activities maintained by the Survy, LTechnician. The logbook contains any observations, pfobleems, or obstacles encountered during the survey. If survey forms are not provided, it may be used to document survey sketches.
A notebook used to organize and provide quick access to logisticaL yN procedural. and administrative survey documentation.
A survey is divided into sections called survey blocks. The size of Survey Block the survey block is typically limited for convenience to 15 meters by 15 meters or 20 meters by 10 meters.
The name assigned to the individual survey blocks. The name Su e N e should be a valid DOS file name of no more than 8 characters as it will be used to archive electronic files. See SCM Procedure 011 for file namin2 conventions.
SCM PROCEDURE 008, REV3 DATE: 9M10 PAGE 5 OF 21 TITLE: CONDUCT OF OPERATIONS FOR sURVEYS USING THE SCMISIMS ITEM DESCRIPTION
. Auto Generated Stylized survey records automatically generated by SIMS without
. Survey Records operator intervention.
Text file automatically generated by SIMS without operator SueyTable .intervention. This file typically has the Survey Name, highest 1(X) cm area. number of meters. number of meters exceeding I(X)cm
- Summary .imit. highest microR/hr and PSPC efficiency.
Nlaster Survey A compilation of the Auto Generated Survey Table Summaries for
. Table each section of th- survev.
The Survey Report Volume (SRV) serves to catalog the Auto
. Generated Survey Records. The SRV will consist of one or more
. binders sectioned with dividers using the same structure as the sub-
- Survey Report directories in the SLNIS data directory. Substitution of CD Volume presentation of the data instead of hard copy files in binders is a client option. The Mlaster Survey Table should appear as the first page and an Auto Generated Survey Table Summary should be the first sheet for each survey section.
, ~~~~~~~~~. _............. ..... . . .._......... .. .. . _............................_._.._......___
The act of rcvicwing. inspecting. testing. checking. auditing. or otherwise determining and documenting whether items, processes.
services. or documents conform to specified requirements. With
. respect to computer code development. verification is the process Vof evaluating the products of a software development phase to Verifcation provide assurance that they meet the requirements defined for them
. by the previous phase. As applied to completed computer codes.
. verification means to demonstrate the capability of the code to
- produce valid results for test problems encompassing the range of
. permitted usage defined by the code's documentation.
- 4. General Information Performance of surveys requires designation of the following staff members:
- 1. Project Manager,
- 2. Survey Technicians.
- 3. Office Manager, and
- 4. Quality Assurance (QA) Reviewer.
The size of the survey dictates the number of Survey Technicians, but for small surveys the Project Manager may assume the responsibilities of the Survey Technician. Persons directly involved with the survey may not serve as Quality Assurance Reviewer.
The Project Manager is responsible for planning, organizing logistics, supervising survey performance, documenting the survey, and processing survey data. The Project Manager is responsible for choosing the methods and procedures needed to complete all
SCM PROCEDURE 008, REV3 DATE: 9I7i01 PACE 6 OF 28 T'ITLE:CONDUCT OF OPERATIONS FOR SURVEYS USING THE SCM/SIMS deliverable items for the survey, for performing the required tasks, and for documenting the process in a manner that reflects high professional standards.
Survey Technicians are responsible for operation and maintenance of the SCM during the course of the survey. They perform surveys in accordance with SRA and local site procedures. Survey Technicians must complete the SRA training courses required for operation of the SCNI. In the event more than one individual is involved in the accumulation of survey data. each individual shall be considered a Survey Technician.
For larger surveys the Project Mlanager may appoint a Survey Lead Technician. The Survey Lead Technician will assist the Project Manager in supervising and organizing survey activities.
The Office Mlanger assists the survey team by providing clerical and logistical support.
The Office Nlanager is responsible for maintaining controlled copies of any documents provided to the client. The Office Manager approves all revisions to any deliverable documents. Additionally, the Office lanader maintains the survey archive upon completion ofthe tinal deliverables of the survev. The Office MNlanager may function at the survev site. the home office. or at a remote location.
The QA reviewer insures completion of all required elements of the survey: that the completed survey is in accordancevwith all applicable procedures: and addresses all contractual survey items. In addition. the QA reviewer performs a final check on deliverable documents to ensure that there are no eramrnaical. spelling, or punctuation type errors: that page numbering is correct: that all tables Andre with Auto Generated Survey Records: that all cross-references are correct: etc. Survey documentation must be completed and ready for deliverv (i.e. resolution of comments must be finished) before QA review can take place.
- 5. Materials, Equipment and Supplies Table 2.
Materials, Equipment, and Supplies.
ITEM. SPECIFICATION SCMN MNodel 3 SCMN Process Software Version 2.() or later PSPC Typical lengths include 0.9 and 1.8 meter
............................ .voo*-*ss ~-v*----*-------------*e--e..
SIMNS Workstation Capable of running the current version of S[MS SUIVIS Current Version Zip Disk(E) or other removable disk media for use with the Removable Media .IOMEGA Zip Drive or compatiable drive.
PKZIP or WINzip (current version) data compression File Compression Software utilities. Software should be capable of creating self-extracting files. _... .. ........ ...... _. .. _. ...... _
SCM PROCEDURE 008, REV3 DATE: 9r7io0 PAGE 7 OF 23 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING THE SCMISIMS ITEM SPECIFICATION Backup Hardware and Seagate Backup (current version) - utility for transfemng Software . data to tape cartridges. Tape cartridges must be compatible with tape drive.
Binders 3-rine or other binders for securing loose paper.
Lo~books Suitable for using in the field.
- 6. Responsibilities 6.1. Project Manager 6.1.1. Has completed SCMI Level I and Level 11 training and SIMS Level I and Level II.
6.1.2. Reads and becomes lfamiliar with this procedure.
6.1.3. Conducts planning of survey logistics and performance requirements.
6.1.4. Determines relevant proccedurcs.
6.1.5. Coordinates survev loListics.
6.1.6. Assembles Survey Notebook.
6.1.7. Ensures that the survey is performed in accordance with SRA proccdurcs.
6.1.8. Reads daily Survey Technician logs and compiles master log.
6.1.9. Distributes and collects daily QA documents.
6.1.110. Conducts dailv Plan of Dav meeting to each shift.
6.1. 11. Maintains Survev Notebook in accordance with this procedure.
6.1.12. Collects, maintains, and processes survey data using SIMS.
6.1.13. Transfers survey data and documents to Office Manager for storage upon completion of survey.
6.2. Survey Technician 6.2.1. Has completed SCM Level I training at a minimum.
6.2.2. Reads and becomes familiar with this procedure before conducting surveys.
6.2.3. Performs surveys in accordance with this procedure and procedures provided by the ProJect Manager.
6.2.4. Provides text and diagrams describing survey pattern for each survey block in accordance with this procedure.
6.2.5. Maintains daily logbook in accordance with this procedure.
6.2.6. Performs and documents daily QA checks.
SCM PROCEDURE 006, REV3 DATE !97i01 PAGE 8 OF 23 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING THE SCM/SIMS 6.3. Office Manager 6.3. 1. Transmits completed report and other deliverables to the client.
6.3.2. Maintains control of deliverable documents throughout the revision process.
6.3.3. Maintains the survey archive in accordance with this procedure.
6.4. Quality Assurance Reviewer 6.4.1. Reads and becomes familiar with this procedure before reviewing survey documentation.
6.4.2. Reviews completed survey documentation to insure completion of all required elements. that the completed survey is in accordance with all applicable procedures. and addresses all contractual items.
- 7. Procedure 7.1. Pre Deployment Preparation 7.1.1. Designate the Project vlanacer.
7.1.2. Choose a pro ject name. SIMS uses this name to catalog documents in the SENIS directory structure. The project name should be a single word ot no more than 8 characters.
7.1.3. The Project ,Mlanager creates a directory on the SIMIS workstation using the Project Name.
7.1.3.1. The Pro ject Mlanager maintains control of the documents in these directories during the course of the survey; however.
control transfers to the Office Manager upon completion of the survey.
- 7. 1.3.2. Anv of the directories may include sub-directories to organize the stored data. For example, on large surveys a directory may contain multiple sub-directories for separate sections of the survey. The naming convention should aid in identification of the particular areas. For example, use directory names such as exterior, interior, bldgl, elevI, etc.
If using a Survey Identification Code, then use that code as the directory name. Typically, the "_..QRaw" and "_SRaw" directories do not have sub-directories. Create at a minimum the following sub-directories under the Project name directory as shown in Table 3. Any references this procedure makes to the directories in Table 3 includes the sub-directories created under them.
SCM PROCEDURE oo0,REV3 DATE.S 917101 PAGE 9 OF 28 TITLE: CONDUCT Or, OPERATIONS FOR SURVEYS USING THE SCM/SIMS Table 3. Directories on SIMS computer.
DIRECTORY NAME USAGE Stores all SCM Source Response Check and Performance Based Check
_QRaw files transferred from the SCMI and not processed by SIMS.
SRaw Stores all SCNI survey iles transferred from the SCMI and not
_ processed by SRIMS.
CAD Site drawings and maps.
Admin Time sheets. expense reports. etc.
Correspondence Any correspondence between SRA staff and client.
Documents Completed Auto Generated Survey Records (ASGR) and tables.
This directory contains oridinal AGSRs and tables before they were revised. Copy original AGSRs here before generating new or revised Documents\B ackup.
reports or records. The backup directories should be numbered sequentially.
Data Use this directory to store survev data.
Pictures Tlis directory contains dieital irnaes of the site and survey process.
ThILs directory contains any reports or survey rccords issued internally or to a client. Reports may include status reports. final reports.
Reports executive summaries. survcv records. etc. Each type of report should have its own directory. For example. all alpha reports could go into the alpha sub-directory.
7.1.4. Devclop the survey plan.
7.1.5. Compile a packing list to include both company and personnel items.
Managzement and all survey team members should review thetinitial draft. Management and each survey team member should receive a copy of the packing list prior to departure. Use the packing list in Appendix B, "Sample Packing List". as a guide.
7.1.6. Assemble a Survey Notebook as outlined in this section. The Survey Notebook shall contain at a minimum the following sections 7.1.6.1. Contact Sheet - The contact sheet provides an easily accessible list of phone numbers and addresses. Place the sheet on the cover or insert as the first page of the Survey Notebook. Appendix A, "Sample Contact Sheet", lists a sample contact sheet and should contain the following information at a minimum as shown in Table 4.
SCM PROCEDURE 008, REV3 DATE. 9/701 PAGE 10 OF 21 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING 7TE SCMISIMS Table 4. Contact sheet information in Survey Notebook.
ITEM Client phone number and address.
Emergency contact phone numbers for all team members.
Hotel phone number and address.
Room numbers should be added as they become available.
Local internet access numbers.
Site phone number and address.
A contact number in the event that the notebook is found.
7.1.6.2. Mlaps and directions.
7.1.6.3. Scope of Work.
7.1.6.4. Safetw - The safetv section should at a minimum contain the following items as shown in Table 5.
Table 5. Safety Items in Survey Notebook.
ITEM Site Safety Plan.
Applicable NISDS Sheets.
Medical - Includes items such as ibTmunization records. respirator qualification, staff medicines, etc.
7.1.6.5. Procedures - All SRA and site procedures to be used during survey.
7.1.6.6. Source Certification Documentation.
7.1.6.7. Trainings Records.
7.1.6.8. Packiniz List.
7.1.6.9. Shipping - The shipping section should at a minimum contain the following items as shown on Table 6.
SCM PROCEDURE 008, REV3 DATE: 9W1M01 PAGE 11 OF 28 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING THE SCMIIMS Table 6. Shipping sheet information.
ITEM Blank Commercial Invoice Blank Shipper's Declaration for Dangerous Goods form Client shipping labels DOT Label with UN number Federal Express Airbill Federal Express Dangerous Goods Airhill Instructions for shipping P-I()
Insurance certificate NON-FLAMMNIABLE GAS labels SPA shipping labels 7.1.6.110. Parts and Expenses - Envelope for rcceipts.
7.1.6.1 1. Travel - Reservations. flicht information, and envelope bor tickets.
7.1.6.12. Backup copies of all software to be used on site.
7.1.7. Ensure that all items on the packing list have been shipped or prepared for transport.
7.2. Deployment 7.2.1. Arrival and Initial Start-up 7.2. 1. 1. Check in with site contact. Confirm requirementsvfor security and disposition of check sources and P-10 cylinders.
7.2.1.2. Conduct Safety Meeting.
7.2.1.3. Conduct Plan of Day M9leeting.
7.2.1.4. The Pro ject Manager should distribute logbooks, initial QA forms. and daily QA forms.
7.2.1.5. Conduct a walk through inspection of the survey area to assess any needed adjustments to the survey plan.
7.2.1.6. Identify a staging area, a secure storage area, and an area to set up data processing (SIMIS).
SCM PROCEDURE 008, REV3 DATE 9/7101 PAGE 12 OF 23 TITLE: CONDUCT Or. OPERA 7 IONS FOR SURVEYS USING THE SCM/SIMS 7.2.1.7. Place all shipped and hand carried equipment into the designated staging area and conduct an inventory check using the Packing List.
7.2.1.8. The Pro ject Manager assembles the SINIS workstation and tests SINIS while the Survey Technicians assemble and perform required QA checks on the SCMI(s).
7.2.1.9. As each SCNI completes QA checks. the Pro ject Manager will collect and verify the generated QA documentation.
7.2.1.1 . Create a directory titled "C:\FM5\Data\Transf'er" in the SCNI software directory of each SCNI. If the directory already exists. delete its contents.
7.2. 1. 1. The Survey Team assures the SCMI's is ready for field operations and assigns a survey area. The Project Mlanager ensures the Survey Technician(s) understand the survev naminu convention and orientation.
7.2.2. Daily Startup 7.2.2. 1. Conduct Safetv Meetin-7.2.'.2. Conduct Plan of Day leeting 7.2.2.3. Distribute Iogbooks and daily QA forms.
7.2.2.4. As each SCMI completes daily QA checks. the Project MIana er collects and verifies its QA documentation.
7.2.3. Daily Survey Activities .
7.2.3.1. Survey Technicians perform surveys in accordance'with SRA Procedure 005. Direct any questions regarding procedures to the Project Manager.
7.2.3.2. Survey Technicians record in the logbook the sketch of each survey block detailing the pattern used to conduct the survey.
Use arrows to designate the start point, end point and direction of each survey strip. Place an asterisk in the southwest corner (or as designated'by the Project Manager) of the survey block to identify the orientation of the survey block in SIMS. If the survey block is not oriented to the cardinal directions, provide another indication of orientation.
7.2.3.3. Maintain the logbook with the following formats as shown in Table 7.
SCM PROCEDURE 008, REV3 DATE: 9701 PAGE 13 OF 25 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING THE SCMISIMS Table 7. Logbook formats.
ITEM Each day should begin on a new page.
The date should appear in the upper right corner of each page.
Each morning the Survey Technician should note P- l() Gas level, time on site, and action items from the Plan of Day meeting..
The name and start time of each survey block should be noted in the left mar-in.
If survey forms are not provided, use the logbook to record the survey sketch.
Note any obstacles, problems. or unique observations in the logbook as they occur.
Each recorded observation should include time of day.
7.2.3.4. The Project M'Vanager transfers survey data files from each SCLM to SIMS periodically throughout the day. Files should he transferred a minimum of twice a day. Every SCMI should participate in each transfer session. The individual file transfers should occur between survcv blocks so as not to impede survey efforts. Each transfer should be conducted as shown in Table S.
Table 8. Transfering data from the SCM to removable media'.
STEP DESCRIPTION l I Label a floppy disk with each SCM serial number or ID.
2 Exit the SCMI software.
3*= Using file compression software, create a transfer file that contains all of the Survey Header Files (*.svy) and Survey Data Files (*.(??) in the SCNI directory.
4 MNove the transfer file to the floppy disk.
5 Once the transfer tle resides on the floppy disk. move all Survey Header Files and Survey Data Files to the "C:\FM15\Data\Transfer" directory.
6 Restart the SCMI software and return control to the Survey Technician.
- Repeat the steps in this table for each SCIM.
- The detector configuration files currently have a similar rile extension as the Survey Data Files.
DO NOT transfer or delete the detector configuration files!
SCM PROCEDURE 008, REV3 DATE: 91701 PAGE 14 OF 28 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING THE SCM/I'IMS Table 9. Transfer of data from removable media to SIMS.
STEP l DESCRIPTION I Using file compression software, extract the Survey Header Files and Survey Data Files from each floppy into the "Data" directory of the SIMIS Survey Directory.
2 lIf a removable media has not been prepared. insert a blank removable media into the removable media drive and create a directory labeled 'Transfer".
3 Copy the Survey Header Files and Survey Data Files from the "Data" directory of the SINIS Survey Directory into the 'Transfer" directory of the removable media. This serves as a temporary archive of survey data.
4 Nlove the Survey Header Files and Survey Data Files from the "Data" directory of the ShNIS Survey Directory into their respective sub directories. Source Response Checks and Performance Based Checks survey tiles ego into the lQRaw" directory. Survey tiles -o into the "_SRaw- directorv.
s Erase the tiles from the removable media used to transfer SCN.\ data to prepare them for the next tile transfer.
7.2.3.5. Print and review Mlaster Survey Table for comparison with reports and survey records.
7.2.3.6. [f time and resources permit. compare values in Auto Generated Survey Records with corresponding values on Master Survey Tables.
NOTE: All reports and survey records sltold he printed and reviewed before demobilization.
7.2.4. Daily Data Processinizg 7.2.4. 1. Update Survey Report Volume.
Verity Auto Generated Survey Table Summary (STS Fie) entries with values in the corresponding individual Auto Generated Survey Records (AGSRs).
- Place AGSRs into the proper sections of the Survey Report Volume.
- Place an updated copy of the Master Survey Table at the beginning of the Survey Report Volume.
7.2.4.2. Complete any outstanding data transfers.
7.2.4.3. Mlove completed Auto Generated Survey Records to the "Documents" directory.
SCM PROCEDURE 008, REV3 DATE: 9W711 PAGE 15 OF 28
'TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING THE SCM/SIMS 7.2.4.4. Consolidate any tables created by Batch Processing into the Master Survey Table.
7.2.4.5. Process outstanding data files as described in Table 10.
Table 10. Steps to process data files.
STEP I DESCRIPTION I Draw the survey block on the Master Drawin2 if available.
2 Label the arid with the Survey Nare and place an asterisk in the lower left corner of the survey block as viewed in SIMS if available. The lower left corner typically represents the southwest corner.
3 Usin2 SrNIS and the survey sketch stitch the survey.
4 l Repeat steps I through 3 for all transferred survey files.
Batch process Auto Generated Survey Records and tables for all recently stitched surveys. Apply appropriate background values to activity limits if backgrounds have been calculated.
6 Move completed Auto Generated Survey Records to the "Document" directorv.
7 Consolidate any tables created bv Batch Proc-ssin t into the laster Survey Table.
___- Print and review laster Survev Table.
9 If time and resources permit. print any unprinted Auto Generated Survey Records.
10I If time and resources permut. compare values in AGSRs with corresponding values on Nlaster Survey Tables.
- The SIMS Batch Processor writes the auw-enerzted tables to die directory in which the Batch Processine File is stored.
- AIl reports and survey records should be printed and reviewed before demobilization.
7.2.5. Revision of Auto Generated Survey Records 7.2.5.1. Create a backup sub-directorv in the relevant "Document" directory.
7.2.5.2. Mlove current version of Auto Generated Survey Records into the backup directory. The backup directories should be numbered sequentially.
7.2.5.3. Follow steps 5 through 8 in Table 10 to regenerate records.
7.3. Post Deployment 7.3.1. Records
SCM PROCEDURE 005, REV3 DATE: 9/7101 PAGE 15 OF 28 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING THE SCMISIMS 7.3. 1.1. The Office Manazer maintains all controlled copies of any final record, report or executive summary.
7.3.1.2. The Office Mulanager may revise any controlled copies. The Office Manager distributes any revised document to the survey team members for comments.
7.3. 1.3. Upon completion of the final revision, the Office Manager presents the report and other deliverables to the QA Reviewer for verification.
7.3. 1.4. After QA approval of the report. the Office MOanager conveys the report and other deliverables to the client.
7.3.2. Survey Archive 7.3.2.1. Upon completion of all reports. the Project ZManager turns over all survey documentation and materials to the Office Manaeer.
7.3.2.2. The Office Mlanager places all lfinalized material into the survey archive that includes at a minimum the items shown in Table 11.
Table 11. Materials turned over and archived.
ITEM Logbook(s)
SINIS Software SIMS Survey Directory MIlaster Drawing and other site drawings Contract paper work Survey Notebook J Survey Report Volume (i.e. printouts of Auto Generated Survey Records)
Video Tape(s), if taped Computer media containing survey data file backup Copies of any other paper work provided to the client 7.3.2.3. The SIMS Survey Directory should be archived to backup tape.
SCM PROCEDURE 008, REV3 DATE. 9/7101 PAGE 17 OF 23 TITLE: CONUUCT OF OPMRATIONS FOR SURVEYS USING THE SCM/SIMS 7.3.2.4. Secure all of the items listed in Table 11, the backup tape of the SIMS Survey Directory, and any other documentation pertaining to the survey in a document storage box labeled with the Project Name and date.
7.3.2.5. After QA review, the box should be stored in accordance with office document archive procedures.
7.3.2.6. Place a sign out sheet in the box. Log any removal of any material from the box.
7.4. Quality Assurance Review 7.4.1. As soon as is practical following the receipt of a survey for review, the Quality Assurance reviewer shall:
7.4. 1.1. Verify general grammar. spelling, punctuation. etc. for correctness.
7.4.1.2. Verifv that statements are clear and precise.
7.4.1.3. Recalculate numerical problems to insure that no -calculator type" errors have occurred (this includes verification of spreadsheet cell formulas).
7.. 1.4. Verify that all assumptions are clearly documented and are valid.
7.4.1.5. Verify that data tables are correct. valid and that table entries are consistent with the data from the Auto Generated Survev Records.
7.4.1.6. Verifv that the survev documentation contains all of the information necessary for complete reconstruction at a later date.
7.4.1.7. Verify that the SINIS Survev Directory matches what was archived on the tape backup.
7.4.2. Upon full completion of the QA review, hold a meeting with the Project MIanacer and Office Mlanager to discuss comments and resolve issues if necessary.
7.4.3. Upon receipt of a revised survey, the QA reviewer shall first ascertain the scope of the revisions (major or minor).
7.4.4. If only minor edits (those that do not affect results or conclusions) have been made, then QA review should consist of a read through of the documentation to insure that the changes made were appropriate and that no more are necessary.
SCM PROCEDURE 008, REV3 DATE: 9/7101 PAGE 13 OF 23 TITLE: CONDUCT OF OPERATIONS FOR SUR.'EYS USING THE SCMISIMS 7.4.5. If major changes have been made, then a full review as described in step 7.4.1 is required.
7.4.6. Once all issues have been resolved satisfactorily, complete and sign the Survey Documentation Control Sheet. (see Appendix C, "Survey Documentation Control Sheet").
7.4.7. Complete and sign the Survey QA Review Sheet. (see Appendix D, "Survey QA Review Sheet').
7.4.S. Return the survey documentation to the Office M0anager.
- 8. Acceptance Criteria Survey Documentation Control Sheet and Survey QA Review Sheet (with signatures) are complete.
All survey documentation has been archived.
All voided/superseded survey revisions arc marked as such onl their rcspective Survey Document Control Sheets.
- 9. References 9.1. SRA Procedure 005 "Requirements for Completion of a Survey Using the SCM"
- 10. Required Records The following records shall be maintained for the life of the company as shown in Table
- 12. Record maintained upon completion the survey.
SCM PROCEDURE 008, REVW DATE. 9M01 PAGE 19 OF 28 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING THE SCMISIMS Table 12. Record maintained upon completion the survey.
ITEM All completed survey reports regardless of revision status Logbook SIMIS Software Version used in survey SIMIS Survey Directory Site Drawings Survey Notebook Survey Report Volume Video Tape or digital photos Computer media containing survey data tile backup I 1. Apendices 11.1. Appendix A, "Sample Contact Sheet" 11.2. Appendix B, "Sample Packing List" 11.3. Appendix C, "Survey Documentation Control Sheet" 11.4. Appendix D, "Survey CA Review Sheet"
SCM PROCEDURE 008, REV3 DATE 917101 PAGE 20 OF 28 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING THE SCMISIMS Appendix A Sample Contact Sheet
DATE: 9s7101 PAGE 21 OF 28 SCM PROCEDURE 008, REVa TITLE': CONDUCT OF OPERATIONS FOR SURVEYS USING THE SCMISIMS SRA CONTACT SHEET HANFORD DEPLOYMENT NAME 1 PHONE NUMBER INTERNET ACCESS INFO National AOL Accesss Number (E(X)) 245-(113 Local AOL Accesss Number (630) 435-1054 DON'S EMERGENCY CONTACTS Wife Cell I(404) 351-168()
Home 1(770) 781-9292 Cell l (404) 668-7606 l l BOB'S EMERGENCY CONTACTS Wile l (770) 578-83 62 Cell l(678) 296-4815 l l CHARLIE'S EMERGENCY CONTACTS Wife l (35') 628-5707 Cell l (720) 841-5377 SITE INFO Marty Phalen (Joh Site Contact) (Cell) (89 15) 263-9(X) 1 SRA INFO Shonk-a Research Associates. Inc. (770) 509-7606 Hotel Address and Phone Site Address and Phone Client Address and Phone Number: Number: Number:
Holiday Inn 205 Remminston Blvd.
Boling Brook IL 6044O Phone: (509)943-44(X)
If this notebook is found please contact Shonka Research Associates at (888) 509-7606
SCM PROCEDURE 008, REVW DATE WM PAGE 22 OF 28 TITLE: CONVUCT OF OPERATIONS FOR SURVEYS USING THE SCMISIMS Appendix B Sample Packing List 5
SCM PROCEDURE 008, REV3 DATE: 97101 PAGE 23 OF 25 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING THr SCMISIMS BONUS Packing List Don Toolbox, Electronics (Gray)
Knit Cap 37Pin Terminal Block Bag Alligtor Leads (3)
Brief Case Connector. \1HV (2)
Cold Weather Gear Connector. BNC (2)
Hard Hat Connector. BNC. T (I)
Hot Sauce Electrical Tape Leatherman GLPT. Red Organizer Liquid Tape Hotcl 0 wlConfirmation iN.E. Power R.ie!l Heat (;oun Cir Conjirmation i Heat Shrink Nl.M Extended Cables Saletv Glasses Pin extension lead.
S.Iietv Shoes iSub~naniijl Fnot Wcani Q-Dope Shavine Kit Scoich Tape Solder Tie-Wraps ismall. med. lirgei Joe Tweeker Knit C.ip Wire Bait Wire Stripprsr Coild %%'ctherGiear Hlrd Hat Satet% 0l.1 e.C Toolbox. Nvylar (Red)
SAICiv Shles iSuhirantial F;%.iW-,,ri Anrwle Wire Roll *Ii Shavi ne Kit MVl.ir Roll i(3 Razzor Blade.
S&otch Tape SCMNI #1 Silver Solder Cables. BNC. H VPA-DLG '21 Solder Extractor Cables. DB37 ) Soldeenng Iron Cable. DB9. Encoder cable. I1,er Tape Roll 3)
Cables. Power. AC (2)
Detectr Mounting Brackets ( )
Deiector. Model 2 PSPC. 6' (2) Toolbox, SCM (Yellow)
Detector. Model 2 PSPC. 4 (f) Adapter. BINC Female to Ban.ana Electronics (NIM. DLG. HVPAi BoMtle Wrench Extension Cord (I) Buney Cords (3)
Flow Gauge. Inlet Chalk. Powdered S Flow Gauge. Outlet Chalk. Sticks or Paint Sticks Frame. SCM. Motorized Chalk Line Lunch Box PC Channel Locks Dasl4t2 Crescent Wrench 12)
CTR-S Detector. Combustible Gas W/kharger MHV Cables (2) Dykes Motor Exacto Knife M.1ctor Contrciler Flash Light P-10 bottles (1) Hex Wrenches, ball ended Ietric)
Plug, gas. quick connect (3) Hex Wrenches, ball ended (US)
Regulator Measure Tape. 100 Surge Suppresser. ISOBAR. I 0db Filter Pliers. Needle No e Tubing. Tygon (3) Sacew Driver. Philips (3).
Sacew Driver. Standard 2')
SCM 02 Socket Set Cables. BNC. HVPA-DLG (2) Source. Cs-137. 100 cm Cables. DB37 (2) Spare BNC (I)
Cable. DB9. Encoder able. Spare DB37 (1)
Cables. Power. AC (2) Tape. Scotch Detector Mounting Brackets (2) Teflon Tape Detector. Model 2 PSPC. 6' (2) Tie Wraps. Large (25)
Detector. Model 2 PSPC. 4- (2) Tweeker Electronics (NIM. DLG. HVPA)
Extension Cord (11
SCM PROCEDURE 008, REV3 DATE: 917101 PAGE 24 OF 2B TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING ThE SCII/SIMS Flow Gauge, Inlet Flow Gauge. Outlet Test Equipment Frame. SCM. Motorized BNC cables (2)
Lunch Box PC Scope. Hand Held. Fluke 105B Dasl402 Tesn Leads CTR-5 MHV Cables (2)
Motor Motor Controller INfisc.
P-10 bottles (1) Clip Board (2)
Plug, gas. quick connea (3) Disk. }.S" (t boxi Regulator Legal Pad Pencil. ()
SurgeSuppresser. ISOBAR. 120db Filter Tubing. Tygon 13) Pens(4)
Baiterie.t. C cell 06)
B.mneries. D cell (2)
GNI Probe ESP-II Check Sources DB9.BNC Cable Soruce. Cs. l0tMcrnE2 MtHV Cable Cs Cerltiicate Source. Am.241 Camera Softwvare and Data Files Cahle. BNC. Remote to DLG (I )
( *te
.' SCM\I version 4.x Camrrcorder Power "uppiyandi power cable Cimcorder Remote Copy of Bonus SCM version Copyo01 Vi.Tj.¶TVCt 3.X C(imcorder Tapes (:S)
Copy ot Sitncher 3.
(Cracorder to Snappy Calie WPhonom Camrrcorder WV/cive C:.amcorder wxide angle Jens Documentation Mount Plate. Trip.l Lough,4k t21 Sn.appy M.rketing Folders i :;
Procedures .ianu.l SlNIS Rad Worker 11 Re.sprator qiualilit tel CABLE. LAP LINK Survey Notebook Computer
(:umpiece Set ot Schematics Mouse Kevhoard Phone Cii-le Spare Parts Monitor ti'1 ; Cable. Power. AC Mint isobhar DAS 1402 Keyboard Lee-son Motor Bo.ard Mouse. BSI S P-10 Battles (Z)
Tubing (I Box)
Extenston Cord (12 Guagel
- Hard Drives Removed anti hand carried.
I Shipping Containers Frame & 2' Detecacr Box t I Elecaeniz Box #a Tool Boxes Box 13 P-10(4) Box $4 Detecors. 4' Box M5 Don's Suitcase Checked Luggable Carry-on
SCM PROCEDURE 008, REVW DATE. 9M01 PAGE 25 OF 23 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USING THE SCMISIMS Appendix C Survey Documentation Control Sheet
SCM PROCEDURE 008, REV3 DATE' 9s7m01 PAGE 26 OF 28 TITLE: CONDUCT OF OPE11ATIONS FOR SURVEYS USING THE SCMISIMS SHONKA RESEARCH ASSOCIATES, INC, Survey Documentation Control Sheet DESCRIPTION ! VALUE CLIENT 1 PROJECT I TASK NUMBER CLIENT TRACKINa NUMBER DESCRIPTION EXAMPLE l VALUE SURVEYAREA CODE AI(XN)-B W SURVEY UNIT CODE lIX SURVEY LOCATION ELEMENT l FZIXI&
SURVEY CLASSIFICATION ELEMENT l l_l LwC SURVEYREASON CODE SURVEYMEDIA CODE I I SURVEY DETECTOR ELEMENT lAB -W125 I ()l SURVEY RECORD NUMBER OR SCM FILENAME AB604O1Z SURVEY MAP FILENAME AND REFERENCE Floorl.DXF I COORDINATES IN (X, Y, Z ) [METERS1 1 (29.5. 12.5. Q) I PERFORMED BY: DATE:
PERFORMED BY: DATE:
REVIEWED BY: DATE:
THIS SURVEY HAS BEEN VOIDED OR SUPERSEDED BY:
(SURVEY IDENTIFICATION CODE)
SCM PROCEDURE 008, REV3 DATES 9/7101 PAGE 27 OF 28 TITLE: CONDUCT OF OPERATIONS FOR SURVEYS USWNG THE SCMISIMS Appendix D Survey QA Review Sheet I
SCM PROCEDURE 008, REV3 DATE: 9(7101 PAGE 28 OF 28 TITLE: CONDUCT OF OPERATIONS.FOR SURVEYS USING THE SCMJSIMS SHONKA RESEARCH -ASSOCIATES, INC.
Survey QA Review Sheet THE UNDERSIGNED HAS REVIEWED THIS SURVEY IN ACCORDANCE WITH THE METHOD(S) INDICATED BELOW.
- 1. SURVEY REPORT Review to determine that the data tables are consistent with the Auto Generated Survev A Records.
8I Review report to ensure that backgrounds have be-n considered and applied.
c Review body of report and vcrify that general grammar. spelling. punctuation. etc. arc correct Other:
- 2. DOCUMENTATION R-.view to determine that the survey documentation has been validated. meets aSl A requirements for deliverable items. and that the documentation contains all necessary information for reconstruction at a later date.
B Review to verify that the tape backup is complete.
CI Ensure that the Survey Archive has been performed.
DII Other:
- 3. DELIVERABLE ITEMS A Ensure that all deliverable items due the client have been completed.
B Ensure that all deliverable items are prepared for transmission to client.
c Other:
- 4. OTHER REVIEWED BY: DATE:
Control Copy #
Shonka Research Associates, Inc.
4939 Lower Roswe!l Road, Suite 106 Marietta GA 30068 770-509-7606 Surface Contamination Monitor SCM Procedure 011, Revl Survey Naming Convention when Using the SCM I
SCM PROCEDURE 011, REVI DATE. 9)7l01 PAGE 2 OF B TITLE: SURVEY NAMING CONVENTION WHEN USING THE SCM Table Al. Revision Table __._ .
REVIEWED BY: D. DEBORD BRIEF
SUMMARY
OF REVISION AUTHOR(S) . CHANGES RE9IIEWER(S/i DATE w QA REVIEW BY: D. SHONKA I DATE:
EFFECTIV DATE 9709/7/01 EFFECTIVE DATE: 9/7/01
SCM PROCEDURE 011, REVI DATEz 9/7101 PAGE 3 OF 8 TITLESURVEY NAMING CONVENTION WHEN USING THE SCM4 I sPurpose This procedure establishes the methods for naming surveys when using the SCMI. The SCNI saves data to a filename that is identical to the survey name entered by the SCMI operator into the process software. Therefore, the survey name is currently limited to 8 alphanumerics.
- 2. Scope and Limitations This procedure applies to any use of the SCMNI when logeing data.
- 3. Definitions and Acronyms
_Table 1. Definitions and Acronyms. _______
ITEM DESCRIPTION The Surface Contamrination Monitor is a mobile platform SCI .ontaining detectors. support electronics. and data logger used for conductingu radiological survcvs.
... .............................. .............................................. z ......................................................................... 4; Survey Nle;surcment T ep. This code identifies the type ot survey: alpha. beta. garrmia.
Code quality assuranc. etc.
Survey Operating Mlodc This code identities the operating mode: rolling. corner or Code merged.
SCM ID Code This code identifies the SCM serial number.
This code identifies the survey number. This number starts at I and increments throughout the survev for a given Survey Measurement Type Code. Survey Operating Mfode
.Code, and SCNI ID Code.
This code identifies when a survey relates to another
- SurveyInterrelated Code previous survey of the same survey block.
- Survev Identification Code S(S Iy d This code provides a namrin convention for surveys.
(SIC)
The defined objects are: Survey Measurement Type Code.
SCMI SIC Objects Survey Operating Nlode Code, SCNI ID Code, Survey Sequence Code, and the Survey Interrelated Code.
SCMI SIC Fundamental The SIC is made up of elements and numbers. An element Objects is an alphanumeric.
Fundamental Object Data Each SCNI SIC Fundamental Object has a data type defined
.Type .as I alphanumeric or 1 digit.
Survey Strip A continuous data set logged by the SCM.
SCM PROCEDURE 011, REVI DATE., 917101 PAGE 4 OF 8 TITLE: SURVEY NAMINC CONVENTION WHEN USING THE SCM ITEM DESCRIPTION Survey Stitch A process of assembling survey strips into on rile for data analvsis.
Survey Block A group of survey strips stitched into one spatial image.
- 4. General Information The survey name holds values to he!p the SINIS data processor immediately identify the tile. The survey name is made up of SCI Survey Identification Code (SIC) objects: Survey Measuremcnt Type Code. Survey Operating MIode Code. SCMYl ID Code. Survey Sequence Code. and the Survey Interrelated Code.
- 5. Materials, Equipment, and Supplies Table.2 . Materials, Equipment, and Supplies.
ITEM SPECIFICATION SC.MI Mlodel 3 SCNI Proccss Software Version 2.() or later
- 6. Responsibilities 6.1. Operator
- 6. 1.1. Reads and becomes tfamiliar with this procedure before performing an SCOM survey.
6.1.2. Has successful!y completed SCM I training.
- 7. Procedure 7.1. Survey Naming Canvention The diagram in Appendix A. "SC4 S-Character SIC Diagram", shows the SCNM SIC.
- 7. 1.1. The first two characters designate the Survey Measurement Type and Purpose. Table 3 shows the allowed values.
SCM PROCEDURE 011, REVI DATE: 91701 PAGE 5 OF 8 TITLE: SURVEY NAMING CONVENTION WHEN USING THE SCM Table 3. Allowed values for the Survey Measurement Type and Purpose.
SURVEY PURPOSE CODE DESCRIPTION R l Source Response Check P Performancc Based Check C Calibration Check S Survev B Background Survey Z Informational Survev A Alpha Survev SURVEY MEASUREMENT DESCRIPTION TYPE CODE A ! Aiha Survev B l Beta Survev G lGamrnaSurvev N INuctron Survev X I Alpha Beta and Gamma Survev Y l Alpha and Beta SUrvev i NV l Wheel Encoder Confirnation I.1.2. The third character designates as the Survey Operating Mode Code. Table 4 shows the allowed values. Use the merged code when combining the survev strips in a rolling survey with the survey strips of a corner survey.
Table 4. Allowed values for the Survey Operating Mode Code.
SURVEY OPERATING MODE DESCRIPTION CODE R Rolling or scanning survey.
C Comer or static measurement survey.
MN A merged survey.
7.1.3. The fourth character designates as the SCMI ID Code. This code is the serial number of the SCMA and will be a dieit from zero thru 9. When merging survey data from 2 different SCils, then enter this object as '2".
SCM PROCEDURE 011, REVI DATE 9M101 PAGE 6 OF 8 TITLE: SURVEY NAMINs' CONVENTION WHEN USING THE SCM Table 5. Allowed values for the SCM ID Code.
SCM ID CODE I DESCRIPTION 0-9 SCMI serial number.
Z Use this code when merging data from 2 different SC1ls that where used on the same survey block.
7.1.4. The fifth, sixth and seventh characters is designated as the Survey Sequence Code. This code is a sequentially incrementing number used for a eiven Survey Measurement Type Code. Survey Operating Mode Code. and SCNI ID Code.
Table 6. Allowed values for the Survey Sequence Code.
SURVEY SEQUENCE DESCRIPTION I CODE I (X)-999 l Sequential survcy number. I 7.1.5. The eighth character designates the Survey Interrclated Code. Use this code when pertorming a repeat. invesigation. or other survey ot a previous survey.
Table 7. Allowed values for the SCM ID Code.
SCM ID CODE I DESCRIPTION A thru Y A sequential character that increments tir each repeated survey or related survey.
Z Use the Z code as a placcholder so that the SCMI file names are all 3-characters long.
- 8. References 8.1. N/A
- 9. Required Records 9.1. N/A
- 10. Appendices 10.1. Appendix A, "SCM 8-Character SIC Diagram"
SCM PROCEDURE 011, REVI DATES 917101 PAGE 7 OF 8 TITLE: SURVEY NAMING CONVENTION WHEN USING THE SCM Appendix A SCM 8-Character SIC Diagram
SCM PROCEDURE 011, REVI DATE: 917/01 PAGE 8 OF 8 TITLE: SURVEY NAMING CONVENTION WHEN USING THE SCM Figure 1. SCM 8-Character SIC.
I SCM IChiatclev SIL
]
I-tI h chAP u cnai u .a. u it I 4.39,c lcfar Foomal p go m 1 H* SHC A
- Alph . H li l.. U a hIt.e. Il.u.i9 0 liIN. 9 0 lhfu 9 A r l e J P
- PeC a Bela C . Conet C*Cilbbeation Cm a . ,4 . UtigjeJ Allowed S
- Siamney II flessleon - - sC il II)
Vdale s
- M1g Survey X Alpha, Be1.. t h~i element becomes Z Z
namhn and Gamma suvyI~ebteIule the same SCM
- 4l Inomhn Y . Alpha anJ Dab element is usaed *hen a ptobably not uied Bel a osr i sseIs i y Is 11tel d e * ,tl.
W . Wheel Al.IeI~ htmyb Encodet a.Iel~e 0 coiling sutvey of a
-J &McSuvey SCM B-CiAIIfACTEI1 SIC irnitialDesigjn Mnm 09!r5I01 1.19 AWIN 3 e PagelIof i a C;ilyrtrjl;l 2601 Shunrka flea 9uaern Associales All fitll ;ls AdIS!CIV8Ifl
Appendix B Survey Design Revision 1
ORIGINAL SNEC 9ALCULATION COVER SHEET
'CALCULATION DESCRIPTION Calculation Number Revision Number Effective Date Page Number E900-03-019 1 1017103 1 of 14 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Question 1 - Is this calculation defined as 'In QA Scope'? Refer to definition 3.5. Yes El No E]
Question 2 - Is this calculation defined as a 'Design Calculation"? Refer to definitions 3.2 and 3.3. Yes 0i No al Question 3- Does the calculation have the potential to affect an SSC as described in the USAR? Yes E No 0 NOTES: If a 'Yes' answer Is obtained for Question 1, the calculation must meet the requirements of the SNEC Facility Decommissioning Quality Assurance Plan. If a "Yes' answer is obtained for Question 2, the Calculation Originators immediate supervisor should not review the calculation as the Technical Reviewer. If a 'YES' answer is obtained for Question 3, SNEC Management approval is required to Implement the calculation. Calculations that do not have the potential to affect SSC's may be implemented by the TR.
DESCRIPTION OF REVISION
- 1. Page 2, Section 2.1.2 - Add Survey Unit SS14-6 to include SSGS basement floor trench walls that were surveyed by Shonka.
- 2. Page 4 - Add new Reference 3.8 - This new reference provides additional information for FSS work to be performed in trenches and sumps in the SSGS basement.
- 3. Page 14 -Add SS14-6 reference to print.
Note: Revisions are noted by change bars in right margin.
APPROY ALNATURES _
Calculation Originator P. Donnachie/ ,_ }/ Date 1/0/7703 Technical Reviewer R. Holmes/ 't Date /0/7 L .3 Additional Review Date Additional Review K I r Date SNEC Management Approval A. Paynter/ \ Date BocA o 3
- '.SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 l 1 Page 2 of 14_
Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design 1.0 PURPOSE 1.1 The purpose of this calculation is to provide the survey design guidance to be followed for conducting final status surveys (FSS) in the Saxton Steam Generation Station (SSGS) footprint and the adjacent CV Steam Pipe Tunnel (805' elev.). The SSGS footprint consists of the "Firing Aisle" (806' elev.), SSGS Basement Area (790' elev.) and Seal Chamber 1 & 2 Roof areas (-803' elev.). The CV Steam Pipe Tunnel extends off the northeast corner of the SSGS footprint.
1.2 Shonka Research Associates (SRA) will conduct scan surveys using procedures reviewed and approved by SNEC. These procedures are attached as Appendices.
2.0
SUMMARY
OF RESULTS 2.1 The following information will be used to conduct the applicable FSS for this survey design:
2.1.1 The SSGS Footprint area is divided into twelve (12) survey units, i.e. seven (7)
Class 1, two (2) Class 2 and three (3) Class 3 survey units.
2.1.2 The SSGS Survey Unit (SU) Numbers are as follows (See Attachments 7 & 8 for survey unit locations):
SU Number Area Description Classification Area (mi) I SS13-1 Firing Aisle Floor (806') 3 560 SS13-2 Firing Aisle Walls 3 80 SS14-1 Basement Floor (790') 1 75 SS14-2 Basement Floor (790') 1 1 75 SS14-3 Basement Floor (790') 1 88 SS14-4 Basement Floor (790') 1 77 SS14-5 Basement Floor (790') ' 1 56 SS14-6 Basement Trench Walls 1 -20 SS15 Basement Wall (East End) 1 100 SS16 Basement Walls Up to 2 meters 2 240 SS17 Basement Walls > 2 meters 3 350 SS18 Seal Chamber I & 2 Roofs 2 32 Note 1: Area and linear dimensions are approximations.
Note 2: Basement floors will include walls of trenches where possible. Reference 3.8 covers additional FSS work inside sumps and trenches. I 2.1.3 The CV Steam Pipe Tunnel (SSGS Side) consists of three parts: floor, walls and ceiling. Since characterization information in this tunnel is limited and radioactive steam passed through it, the entire area has been classified as Class 1. This area is not described in the current Revision 2 of the SNEC LTP. However, this area will be included in Table 5-2 under the SSGS section in the next LTP revision. The CV Steam Pipe Tunnel is divided into three (3) Class I survey units.
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 1 Page 3 of4__1 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design 2.1.4 The Survey Unit Numbers for these CV Steam Pipe Tunnel (SSGS Side) are as follows:
SU Number Area Description Classification Area (m) I SS22-1 CV Steam Pipe Tunnel floor 1 20 l SS22-2 CV Steam Pipe Tunnel walls 1 45 SS22-3 CV Steam Pipe Tunnel ceiling 1 15 2.1.5 The number of static measurement points will be developed, as applicable, after SRA completes their survey and results are reviewed by the FSS group.
2.1.6 The minimum scan coverage for Class 1 areas will be 100%, Class 2 areas, 50%
and for Class 3 areas, 10-50%.
2.1.7 Scan speed will be set in accordance with SRA procedures and the SNEC MDCscan value calculated for structure surfaces.
2.1.8 The SSGS Footprint and the adjacent CV Steam Pipe Tunnel have different surface DCGLW values. For this design the following DCGLW values apply:
SSGS Footprint - 13,095 dpm/100 cm2 CV Steam Pipe Tunnel - 7628 dpm/100 cm2 These values are the 75% administrative limits for the surrogate Cs-137 values calculated in Attachments 3 & 5.
2.1.9 As a guideline for elevated measurement (hot spot) determination a surface area DCGLemc will use an apriori Cs-137 surface area factor for a 1-M 2 area equal to 11.
These values are calculated to be:
SSGS Footprint- 144,045 dpm/100 cm2 CV Steam Pipe Tunnel - 83,908 dpm/100 cm 2 Note: If an elevated measurement (hot spot) is detected a dimensional analysis will be made of the hot spot and the appropriate area factor will be applied from SNEC LTP Table 5-1 5a.
2.1.10 The MDCScn values for this design that SRA must achieve are:
SSGS Footprint - 6547 dDm/100 cm2 CV Steam Pipe Tunnel - 3814 dpm/100 cm2 2.1.11 Areas greater than the DCGLW must be identified, documented, marked, and bounded to include an area estimate.
2.1.12 Class I areas with surface deformations that cannot be surveyed by Shonka will be identified by marking or painting around the suspect area's perimeter.
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 Page 4 of 14 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design 2.1.13 Remediation is indicated when any area exceeds 3 x the DCGLW for any scan measurement or when the value for any area of -1 square meter is greater than the DCGLemc. Note: If additional remediation is performed the survey unit design is void.
2.1.14 Gas flow proportional counter (GFPC) will be used lAW SRA procedures.
3.0 REFERENCES
3.1 SNEC Facility License Termination Plan.
3.2 Procedure E900-IMP-4500.59, 'Final Site Survey Planning and DQA".
3.3 SNEC procedure E900-IMP4520.04, 'Survey Methodology to Support SNEC License Termination".
3.4 SNEC procedure E900-IMP-4520.06, "Survey Unit Inspection in Support of FSS Design".
3.5 NUREG-1575, "Multi-Agency Radiation Survey and Site Investigation Manual", August 2000.
3.6 SRA Procedures - See Appendix Section 6.0.
3.7 SNEC Calculation E900-03-012, "Effective DCGL Worksheet Verification."
3.8 SNEC Calculation E900-03-025, "SNEC Area Trench & Sump Survey Design."
4.0 ASSUMPTIONS AND BASIC DATA 4.1 SRA procedures to be used to perform scan surveys.
4.2 SNEC LTP section 2.2.4.1.5 and Figure 2-25 provide a description of the SSGS Footprint.
4.3 Attachment 6 provides figure of the CV Steam Pipe Tunnel (SSGS Side).
4.4 Remediation History The Saxton Steam Generating Station (SSGS) Footprint consists of multiple levels. The upper level, "Firing Aisle" (-806' El), contained little or no contaminated surfaces.
However, several drain lines contained levels of Cs-137 that was discemable above typical background values. The majority of this piping was removed during the remediation process. Any impacted piping that is to be left behind will be sampled and surveyed in accordance with SNEC site procedures.
The lower level, SSGS Basement Area (-790'), was surveyed and sampled in stages because of elevated ground water levels, which would have normally resided to a depth several feet above the floor (-790'). Water was pumped from region to region at this elevation to allow the completion of the characterization process on the walls and floor sections of the basement area. Results from surveys and sampling in this region show somewhat contaminated surfaces exist on the floor and in the sump areas at this lower elevation. Tie lines (piping) between sumps were also contaminated and were cut out.
Surface drain lines and miscellaneous piping that were impacted and accessible were removed. Other piping in this region that showed elevated levels of residual contamination and will be treated in accordance with SNEC site procedures.
I -. _SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 1 l Page 5 of_14_
Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Characterization results for the SSGS area are presented in the SNEC LTP, Tables 2-3a through 2-3d and 2-29. This is a complex structure both physically and radiologically.
Table 5-2 provides the survey classifications that result from the complete characterization data for this area.
The west end of the CV Steam Pipe Tunnel exited the southwest side of the pipe tunnel that surrounds the CV. The CV Steam Pipe Tunnel then connected to the SSGS. The tunnel is known to have had trace amounts of surface contamination from leaking steam pipes. All piping has been removed from this tunnel. It is presently sealed at its end with a metal and/or concrete block wall. Since this area was potentially surface contaminated and since it was not physically isolated from the SSGS, it poses some questions as to just how well SSGS cleanup was accomplished prior to demolition. In 2001 surface scans and loose contamination surveys were performed in 2001. Results from these surveys indicated <1000 dpm/100 cm2 beta-gamma and <15 dpm/100 cm2 alpha for removable surface contamination, surface scans <100 ncpm (RM-14) and <0.1 mr/hr general area.
On 8/14/03 paint chips were taken from the tunnel wall. An evaluation of these chips determined that there was no surface activity between the paint layer and the bare wall.
This paint was determined to have been part of the original structure and not used to cover up contamination. Gamma scans (ref. gamma log numbers 5-14471 and 1-14472) performed on the paint chips indicated no radionuclides above minimum detectable activity (MDA). Therefore, there was no reason to remove paint prior to FSS.
4.5 This survey determines the effective DCGLW value for Cs-137 using the spreadsheet mix in Attachments 3 & 5. A 25% reduction to the effective DCGLW was performed to address de-listed radionuclides. The SNEC facility has instituted an administrative limit of 75% for the allowable dose for all measurement results. The de-listed radionuclide dose is accounted for within the 75% administrative limit.
4.6 Radionuclide mixes used to determine effective DCGLW were taken from Attachments 2 &
4.
4.7 The MDCscan calculation is determined based on LTP section 5.5.2.5. The calculation simply reduces the applicable DCGLW by 50%.
4.8 Special measurements including gamma-ray spectroscopy are not included in this survey design.
4.9 Static and other survey measurements may be conducted as applicable after review of the SRA survey is completed. This design will be revised to incorporate these surveys as determined by the FSS group.
4.10 The survey design checklist is listed in Attachment 1.
5.0 CALCULATIONS SSGS Footprint
- The required DCGLw = 17,461 x 0.75 = 13,095 dpm/100 cm2.
- The MDCScn = 13,095 x 0.5 = 6547 dpm/100 cm2.
- DCGLemc for I m2 = 13,095 X AF of I1 = 144,045 dpm/1 00 cm2.
- SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 1 Page 6 of_14_
Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design CV Steam Pipe Tunnel
- The required DCGLw = 10,170 x 0.75 = 7628 dpm/100 cm2.
- The MDCsn = 7628 x 0.5 = 3814 dpm/100 cm2.
- DCGLemc for 1 m2 = 7628 X AF of 11 = 83,908 dpm/1 00 cm2 .
6.0 APPENDICES 6.1 Attachment 1, Survey Design Checklist.
6.2 Attachment 2, Sample Results for SSGS Footprint 6.3 Attachment 3, SSGS Footprint Effective Area DCGLW for Cs-1 37 (dpm/l00 cm2 )
6.4 Attachment 4, Sample Results for CV Pipe Tunnel (SSGS Side) 6.5 Attachment 5, CV Tunnel (SSGS Side) Effective Area DCGL for Cs-1 37 (dpm/1 00 cm2 )
6.6 Attachment 6, CV Steam Pipe Tunnel (SSGS Side) Figure 6.7 Attachment 7, SSGS Footprint Firing Aisle & Top of Seal Chambers 6.8 Attachment 8, SSGS Footprint Basement (790')
6.9 Attachment 9, SRA SCM Procedure 001, Rev 6, Confirmation and Calibration of the Incremental Encoder.
6.10 Attachment 10, SRA SCM Procedure 005, Rev 6, Requirements for Completion of the Survey Using the SCM.
6.11 Attachment 11, SRA SCM Procedure 006, Rev 4, Performance of a Position Calibration on a PSPC.
6.12 Attachment 12, SRA SCM Procedure 007, Rev 7, Source Response Check and Performance Based Check of any PSPC Detector Configuration Installed on the SCM.
6.13 Attachment 13, SRA SCM Procedure 008, Rev 3, Conduct of Operations for Surveys Using the SCM/SIMS:
6.14 Attachment 14, SRA SCM Procedure 011, Rev 1, Survey Naming Convention when Using the SCM.
ai m SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 I I I Page 7 of4__1 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Attachment I Survey Design Checklist Calculation No. l Location Code: See attached design for location codes.
___ __6900-03-019 I _ _ __ _ _
Status Reviewer ITEM REVIEW FOCUS (Circle One) Initials & Date I Has a survey design calculation number been assigned and is a survey design summary description provided? )0*/ff 1°143 2 Are drawings/diagrams adequate for the subject area (drawings should have compass NIA 3 headings)?
3 Are boundaries properly identified and is the survey area classification clearly indicated? JeV N/A I *lo3 4 Has the survey area(s) been properly divided into survey units IAW EXHIBIT 10 N/A 5 Are physical characteristics of the areaflocation or system documented? s) N/A Q JL;3 6 Is a remediation effectiveness discussion included?Ye NMA-/A 43 7 Have characterization survey and/or sampling results been converted to units that are comparable to applicable DCGL values? DN/A vEs 8 Is survey and/or sampling data that was used for determining survey unit variance included? Yes,(i X Is a description of the background reference areas (or materials) and their survey and/or Yes, Li sampling results included along with a justification for their selection? Yese_______
10 Are applicable survey and/or sampling data that was used to determine variability included? Yes,Ž ) 64N 11 Will the condition of the survey area have an impact on the survey design, and has the probable impact been considered in the design? N/A Has any special area characteristic including any additional residual radioactivity (not 12 previously noted during characterization) been identified along with its impact on survey Yes 10
____design? 0 IO1 13 Are all necessary supporting calculations and/or site procedures referenced or included? (Yes) N/A 1017 14 Has an effective DCGLw been identified for the survey unit(s)? Ye N/A 6 kQ,3 15 Was the appropriate DCGLEmc included in the survey design calculation? (Yes) N/A 1//7/03 16 Has the statistical tests that will be used to evaluate the data been identified? 0 -to3 17 Has an elevated measurement comparison been performed (Class 1 Area)? Ye, N/A7 18 Has the decision error levels been identified and are the necessary justifications provided? YesC(NA) dDD7 £7 19 Has scan instrumentation been identified along with the assigned scanning methodology? (Yes) N/A 20 Has the scan rate been identified, and is the MDCscan adequate for the survey design? (Y NM P&11,pZ7 21 Are special measurements e.g., in-situ gamma-ray spectroscopy required under this design, Yes ,
and is the survey methodology, and evaluation methods described? e 22 Is survey instrumentation calibration data included and are detection sensitivities adequate? (nY N/AM 23 Have the assigned sample and/or measurement locations been clearly identified on a diagramI or CAD drawing of the survey area(s) along with their coordinates? e7/1,3 24 Are investigation levels and administrative limits adequate, and are any associated actions ( N/AF clearly indicated?a 25 For sample analysis, have the required MDA values been determined.? Yes,~o&3 26 Has any special sampling methodology been identified other than provided in Reference 6.3? Yes,/ I NOTE: a copy of this completed form or equivalent, shall be included within the survey design calculation.
C-- SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 I 1 l Page 8 of_14_
Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Attachment 2 Sample Results for SSGS Footprint T 112 (d) T 1t2 (d) T 112 (d) T 112 (d) T 1/2 (d) T 112 Id) 1 .~7091 nAZ 101f; V5')70 I iini a oOw I '5,YnIOArA70 IPA VARA7 7 1IiAAAO 101I Am-241 Co40 Ca1S37 Pu-238 Pu.239 Sr-SO Location/Doeeription Am-241 Co-40 Ca-I37 Pu-238 Pu-239 Sr-S0 SSGS Footprint AV-134, 0I'.T Welt n2 0.0995 0.0327 1.3931 0.0014 0.0060 0.0277 Sednient Phase .SSGS East Surnp Q 2S.AV1t3. Wen #1 0.0875 1.9646 78.9405 0.0292 0.0400 SSGS ForVprlt AT.139 a S 0.0199 0.0328 0.2508 0.0068 0.0050 0.0185 SSGS FoutpnintAT-139. S?1Z,WON#4 0.0199 0.0328 0.3065 0.0015 0.0050 0.0167 SSGS Footprint AW-132 a 21:.Wa #3 0.0090 0.0262 0.4365 0.0019 0.0060 0.0278 SSS Footprint Wst Turbin Sump AuAAV-134 (Pumpd) 0.1294 0.1329 6.2384 0.0068 0.0120 0.0185 SSGS FotPrint East Turbine Sump Area AV-133 (Pumped) 0.1990 0.2459 91.0626 0.1952 0.2000 0.0556 SSGS Footprint collecion Tank AreaAW-132 (Pumped) 0.0398 0.1330 5.1214 0.0146 0.0160 0.0186 SSGS FootpriItnWen # 7 Pumped Sedment 0.0697 1.0260 72.0571 0.2932 0.1700 SSGS NmrthSump 0.0040 0.0510 2.4127 0.0039 0.0030 0.0094 SSGS SE Sump. AU-133, SR-0003 0.0139 0.3941 150.4871 0.0029 0.0040 0.0189 SSGS South Est Sump Sediment AVt133 0.0889 0.3847 84.0773 0.0647 0.0381 0.1473 SSGS Mezzanine. East SR-0004 0.7064 1.6667 37.5482 0.3240 0.3300 0.1702 SSGS North Sump Penetrrtion - 4 Pipe 0.0528 0.2091 4.1717 0.0098 0.0040 0.0474 SSGS, East Disk # I 0.2890 1.5060 627.5376 0.0452 0.1450 0.0474 SSGS Footprint East SR-0004. NW Sump 0.1356 0.1077 11.0809 0.0030 0.0030 0.0858 SSGS Foolprint, Center Secton, Core Bare 2. Disk #1. Buildng Stnrcture 0.0478 0.0308 0.2580 0.0482 0.0490 0.0572 SSGS 7W El. East bDebris From Pump Stand SrnadPipe 0.1097 3.1170 2999.1594 0.0690 0.0800 0.0382 SSGS 4- CrossOver Lhne- Sump to Sump. 79 El. 0.0670 0.3719 111.1883 0.1442 0.0875 0.1386 SSGS Footpnnt Salmoo #S. Concrete Flor Cor SR-6 Buidog Structure 0.1320 0.0569 3.7134 0.1158 0.0386 0.0168 Moan= 1.16E-01 6.76E-01 2.14E+02 t.91E-02 6&21E-02 5.34E-02
%of Totat= 0.054% 0.268% 99.593% 0.032% 0.029% 0.025%
Medtann= 7.86E-02 1.71E-01 8.66E+00 2.192-02 2.70E-02 . 3.30E-02 Stgma= 1.56E-01 8.47E-01 6.70E+02 9.80E-02 8.68E-02 4.96E-02 2 S$gma
+ Moan= :4.27E-01 2.27E+00 1.55E+03 2.65E-01 2.36E-01 I 1.53E-01
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 1 Page 9 of_.14_
Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Attachment 3 SSGS Footprint Effective Area DCGL for Cs-137 (dpm/100 cm 2)
Effective DCGL Calculator for Cs-137 (dpm/100 cmA2) l i 1 17498 ldpm/10Ocm'2 l 13124 1dpmtlOOcmA2 250mrmly TEDE Umit C5s-Mi 7aUhliJF A Ce- 13T37Administraveb L at-,'
SAMPLE NO(s)= ISSGS Footprint I 17461 ldpm/100cm^2 1 13095 ldpmIiOO cm^2 I nSNEC ALx 75%
Sample Input (pCUg, Individual Limits Allowed dpm1DOO Beta dpml100 Alpha dpml1OO Isotope ucl,etc.) %ofTotal (dpmI100cm42) cmA2 mremlyTEDE cmA2 cm^2 1 Am-241 4.27E-01 0.027% 27 4.81 4.45 , 4.81 Pu-241 2 C-14 0.000% 3,700,000 0.00 0.00 0°00. A C-14 3 Co-60 2.27E+00 0.146% 7.100 25.57 0.09 25.57 Co-60 4 Cs-1 37i!407 VIA155EO0 .r# 99.784% ,th*28,000 Z17460.65 V I4n 5.59 [4t17460.6 X. Cs-3 s Eu-152 0.000% 13,000 0.00 0.00 0.00 MA Eu-1 52 6 H-3 0.000% 120,000,000 0.00 0.00 Not Detectable H-3 7 Ni-63 0.000% 1,800,000 0.00 0.00 Not Detectable Ni-63 8 Pu-238 2.65E-01 0.017% 30 2.99 2.49 . .. 99 2*.:.WA IPu-238 9 Pu-239 2.36E-01 0.015% 28 2.66 2.37 ..'.,.:;.wA: .',.,. 2.66' Pu-239 10 Pu-241 0.000% 880 0.00 0.00 Not DetectableIs.I , .. *NIA .. ., *. Pu-241 11 Sr-90 1.52E-01 0.010% Sr-90 8,700 1.71 0.00 1.71 .: Sr-90 Sr-90 I I + 4 I - - --
100.000% 17498
_______ 25.0 17480
_______ I 10 Maximum Permissible a dpmJl10O
- cm^2 I.
-* SNEC CALCULATION SHEET -
Calculation Number Revision Number Page Number E900-03-019 Page 10 of 1i4_
Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Exhibit 4 Sample Results for CV Pipe Tunnel (SSGS Side)
SNEC SAMPLE RESULTS LAB or LAB No. Location/Description BWXT. 0102059-01 CV Tunnel Sedmient Composite. CLI SNEC Sample No. 359 CV Tunnel Carmments:
Other Identifier CV Yard Soil Analysis Date=> February 14, 2001 Isotope pCug (soilids) or pC/i (it water) or pCI (if smears)
¶ Am-241 < 0.18 2 C-14 ( 9.34 3 Cm-243 _
4 Cm.244 < 0.18
, Co-60 1.26 6 Cs-134 < 0.19 7 Cs-137 1250 a Eu-152 < 0.13 9 Eu-154 < 0.09 10 Eu-155 < 0.67 1t Fe-55 < 54.99 12 H-3 < 9.4 13 Nb-94 < 0.03 14 Ni-59 < 43.81 1 Ni-63 < 4.02 16 Pu-238 < 0.55 17 Pu-239 <0.22 18 Pu-240 < 0.22 19 Pu-241 < 44.69 20 Pu-242 < 0.22 21 Sb-125 (1.03 22 Sr-90 9.67 23 Tc-99 1.91 24 U-234 1.12 25 U-235 < 0.46 26 U-238 1.46 Other Isotopes pCUg (soilids) or pCiti (if water) or pCI (if smears)
On-site Analysis for Cs-t37 On-slte Analysis for Co-60 On-site Analysis for H-3 1-129 < 5.02 Gross Alpha 17.1 Gross Beta -
K-40 _.
Ra-226 -
Th-232 _.
Cm-242 < 0.19 Th-228 _
Np-237 < 0.24 Ce-144 < 1.33
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 1 Page 11 of 14 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Exhibit 5 CV Tunnel (SSGS Side) Effective Area DCGL for Cs-137 (dpml100 cm2)
Effective DCGL Calculator for Cs-137 (dpm/100 cmA2) r 10705 dpm/l100 cm^2 l 8029 ldpml1O0 cm^2 l250 nmromly TEDE Limit Cs37.Um LlrnIt.f -4t Ct3 A trallve Lhim*t 9J SAMPLE NO(s)= Zcv Steam Tunnel (SSGS Side) 1 10170 ldpml100 cm^2 7628 ldpml00 cm^2 J5SNECALIY;I 75%
Sample Input (pC11g, Individual Umits Ailowed dpml00 Beta dpm/100 Alpha dpm/100 Isotope uci, etc.) % of Total (dpml1 00 cm^2) cmA2 mremly TEDE cm^2 cmA2 1 Am-241 I 0.000% 27 0.00 0.00 W.-:A ; 0.00 Am-241 2 C-14 9.34E+00. 0.710% 3,700,000 75.99 0.00 75.99 A C-14 3 Co-60 1.26E+00 0.096% 7,100 10.25 0.04 10.25 WU Co-60 4 CS-4374Ws03 I T12SE-03.AW~ *,O95.0% =f128.00O: W10iOi3,p i t .0 V11 1WA Cs-137).Q5W s Eu-152 0.000% 13,000 0.00 0.00 0.00 WA Eu-152 II H-3 0.000% 120,000,000 0.00 0.00 Not Detectable ,A H-3 7 Nl.63 0.000% 1,800.000 0.00 0.00 Not Detectable i A Ni-63 a Pu-238 5.50E401 0.042% 30 4.47 3.73 .......iWA 4.47 Pu-238 9 Pu-239 2.20E-01 0.017% 28 1.79 1.60 .
- A 1.79 Pu-239 10 Pu-241 4.47E-O1 3.397% 880 363.60 10.33 Not Detectable PU-Z41 P2A 11 Sr-90 9.67E+00 0.735% 8,700 78.68 0.23 78.68 tiA Sr-90 100.000% 10705 25.0 10335 6 Maximum permissible dpmv100 cm^2
- 'SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-03-019 1 Page 12 of 14 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Exhibit 6 CV Steam Pipe Tunnel (SSGS side)
South Wall 68.5E 73' East Wall 1 24-1 Opening Floor CV Tunnel
- Opening l ADDn.
Ir -0 - - -
Opening - I73 68.5' i
North Wall
SNEC CALCULATION SHEET-:
Calculation Number Revision Number Page Number E900-03-019 1 Page 13 of 14 Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Attachment 7 SSGS Footprint Firing Aisle & Top of Seal Chambers NORTH TOP OF SEAL -
CHAMBER I & 2 SS18 (floor)
TOP OF SEAL CHAMBER 3 SSGS FIRING AISLE & SEAL CHAMBER TOPS PLAN EL. 806'-O"
SN..:.-SEC CALCUL TION SHEET ,. e' . .- ; - ;
Calculation Number Revision Number Page Number E900-03-019 1 Page 14 of _14_
Subject Shonka SSGS Footprint & CV Steam Pipe Tunnel (SSGS Side) FSS Survey Design Attachment 8 SSGS Footprint Basement (790')
vSS15 (East Wall)
SS14-1 (floor)l -C (i)
(St 2cD 55 1 -6Glo~reh.
e6~ Se £10) e)ave1 SSGS FOOTPRINT PLAN EL. 790'-O"
Appendix C DCGL Calculation Logic
DCGL Calculation Logic-SSGS Footprint Survey Unit: Saxton Steam Generating Station (SSGS) Footprint
- 11.
Description:
The purpose of this calculation is to determine a representative isotopic mix for the SSGS Footprint from available sample analyses. The effective surface area and volumetric DCGLWs are then determined from the mean percent of applicable samples.
IlI. Data Selection Logic Tables: The radionuclide selection logic and subsequent DCGL calculations are provided in seven (7) tables. These tables were developed using Microsoft Excel. Table explanation is as follows.
Table 1: Data Listing - This table, which has been extracted from a larger database, provides a list of the most representative SSGS Footprint sample analyses. Results are from scoping, characterization, and pre/post remediation surveys. The samples consist of various sediments and concrete cores that were taken in support of the aforementioned surveys. As applicable, a sample number, sample location/description, radionuclide concentration, analysis date are provided for each sample. Positive nuclide concentrations are noted with yellow/shaded background fields while MDAs are noted in the gray shaded fields.
Table 2: Decayed Listing - This table provides the best overall representation of data selected and decayed from Table 1. In Table 1 half-life values (days) are listed above each respective nuclide column. Samples are decayed to the date noted above Table 1 (e.g. January 15, 2004). Positive results are denoted in a yellow background field while MDA values are in a gray background.
Table 3: Decayed Listing of Positive Nuclides & MDAs Removed- This table provides the decayed values of positive nuclides selected in Table 2. In addition MDA values have been removed from this table.
Table 4: Mean Percent of Total for Positive Nuclides - This table provides the calculation methodology for determining the relative fractions of the total activity contributed by each radionuclide. From this information the mean, sigma, and mean % of total are calculated.
The mean % of total values is used to calculate the surface gross activity DCGLW per MARSSIM equation 4-4. See Table 6. Note that the Am-241 mean percent values were averaged using only samples 1 & 9. In addition, the mean percent value calculated from sample 9 for Co-60 and Pu-239 were not averaged throughout the spreadsheet, since this sample was the only one where these respective nuclides were positive. This results in higher Omean percent of total' values in the mix, which are conservative.
Table 5: Ratio to Cs-1 37 for Positive Nuclides - This table provides the calculation methodology for determining the surrogate ratio to Cs-1 37 for each radionuclide. From this information the mean, sigma, and mean % of total are calculated. The mean % of total values is used to calculate the volumetric DCGLW per MARSSIM equation 1-14. See Table 7. Note that the Am-241 ratios were averaged using only samples I & 9. In addition, the ratio values calculated from sample 9 for Co-60 and Pu-239 were not averaged throughout the spreadsheet, since this sample was the only one where the respective nuclides were positive. This results in higher mean percent of total values in the mix, which are conservative.
Note: From Tables 4 and 5 only the "mean % of total" values are used as input to the "Effective DCGL Calculation Spreadsheet" as illustrated in Tables 6 and 7.
Table 6: Effective DCGL Calculator for Cs-1 37 (dpm/1 00 cmA2) - This table provides the surface gross activity DCGLW calculation results from data derived from Table 4.
I
Table 7: Effecive DCGL Calculator for Cs-I 37 (in pCilg) - This table provides the surrogate volumetric modified Cs-137 DCGLW calculation results from data derived from Table 5.
IV. Summary - Since the SSGS Footprint is a concrete structure the release limit is primarily based on the surface area DCGLW. However, some SSGS Footprint concrete surfaces have volumetric contamination. Therefore, a volumetric DCGLW is also determined. Using the above data selection logic tables the calculated gross activity DCGLw for surface area is 13,615 dpm/I00 cm2 . The Cs-1 37 volumetric DCGLw is 6.56 pCi/g. These values would be reduced by 25% as part of SNEC's requirement to apply an administrative limit as discussed in the License Termination Plan (LTP).
2
TABLE 1- Data ListIng (pC~g)
I I
7 SNEC Samole Wru"174o~
52110MM0035 No I3 I __
1 10.02 Sr-NoI 10.2 Co-NO I 31 Cs-137 I 85 5.51 Am-241I Pu-239 16.88.0<2 10.03 10.04 0 01 0.15 I 016 Pu.239
[
Pu-241I I .JLI 1
C-14 I 3.12
[
I-Ni.63 1.3 IEu-1SO I- 0.21 1 Analysis j Apdl 25, June6, Daes 2000j
--2000 1--- 1 8----
Elapsed Time 1360 1318 (d) 3 SXCI`12110 SMS FoobktCedirillefforstom BW6#7.MWk#i NOSo~rbItileOmcveBe#~hk1
- 1. I 0.06 1 0.04 I 0.17 I OM04 I 0.04 I OM<4 i 639 3.72 1 7.33 1 DA I July 20,2001 909 I noXCF3NoI rCure.WJN 2 WiiiW 0.54A 3.33 0132 0.1161 0*30 2.4 8.191 2.39 0.132 1 May 5,2003 J 255 JI 52CF423 N I 0.81I 0.025 I 0.038 1 40.2 1 4XV AO 0.32 I 024 1 [ III 014 [ 2.5 10.191I November 18203 58 I] SXCF4325 J SG ictr 1 03704 1 O.24 I 0.022 I 14.4 1j 32J 0.0241[ J 80 8j IN I 0.W13 0.334 [jOM November 18,2003 j 58 7 WOF'no IWO~dm~a NSIL Dea0t U00
- I- - - -
O6hE I A.026 I 8.821 2.7 AM.25 I MM36 0 &M05 1 3.0M _013 IS 0.552 001 GI November24.2003 52 sJ1 50C433 j
.5 .--
MiSFs~"rSSI44AP.I ii i WOi 0.2311. 0.0092f M 0.11 0.0039 1.1 0.11 t ~
2.94 0.11 November 25,20031 51 NJSXCF82S I t"1104MAO Ikf11.7 10.05 1 201 1 60 10.291 M004 J 0.145 [6U.hI[ 3.60 j 7373 1 ~0.311 May 42001 j 986
_____ ____________ ______ _____TABLE 2.Decayed Li tng (pC Ug) _ _ _ _ _ _ _ __ _ _ _ _ _
T112 TI 2 T112 T112 T12 Tir2 TI!2 Ti!2 T112 TI12 T112
______4485.27 10446.15 1925.23275 11019.5925 157861.05 32050.6875 8813841375 5259.6 2092882.5 36561.525 4961.4 SNEC Sample No Location!Description N.3 Sr-NO co-Go Cs.137 Am.-241 Pu-238 Pu-239 Pu-241 C-14 Ni.N3 Eu-11S2 Total(PC~N 1 SXIOGWNO321 2P.IG.A2&iAV83We#i _ 134E40 7806E018.75E-02 I.9E4 4,060 8_______0.03 2 SXINSNOO3 $SIG hle~kseW1213.2 12E0 5.066.003.90E. 14E2 1.E2 1.160 6.79 3 SXCF 1210 50? Coe Crehe2ek1 1.03E.0<1 5.65EV0 2106.2 2.55.01 4V0ER0 4.060 4 S06"2 .064 3360 1.2DE6~0 1.560< 27.87 SXCF3531 S7SocwoiorcrUaoa 1964 .6 5360 3640 1.3241 1.15E.01 I16 2.3660<1.1* 2380 260 11.01 S SXCF4323 55 1.,P403.12.55 MR64 4.01641- 1.54W 323E1 2.41-0 1J5. 1A7E* 2.564 1.951 45.38 6 5XCF4325 51IMoNA4,e1,Set 77*1 2A.426.< 2.24W IIA3Et1 1.2.0 2A1E-2 1,8.2I560 1.4113I6*"1A 3.346 0ONEX02 11.34 7 SXCF4330 5565 Pulaski 55144 SeeS 1.Sleet 7.LW0M 96.<1 2311E
.02 I 2.73E.02
.260 23EM ItM R 13.E962 0 MEG I* 13.0E6.0I 1.366.0< I 0.516*1100.096* 1,36 N SXCF4336N 55 _______ 1 0.0<E0 2.95 2.396*2 1I."0.< i 92063 1 1.17W 3.0*4 1160< 61 [2.946MMf 40 11.116*1 21.82 I SXCFn2 I _ __ __ _ 11.00<.0 4AW I 1.41E*00I 6206402 I 2.86* I 4.5062 I 1.456*1It I5960<
3.6064 7.59E4 I[2310E*1 649.82 KEY I I Yellow Shaded Background = Positive Resl I IGray Shaded Background = MDA 3
TABLE 3 - Decayed Libtina of Positive Nuclides & MDAa Removed I ClUal 1 _ 7AE*01 8J7SE402 I I 1 78.12 2 SXIOS00O)NI I I __ I I _ = 5.06 SXCFI 210 255E941 1 .25 SXCF3531 3.67 SXCF 4323 40.05 SXCF4326 14.35 I SXCF4330 2.72 8 SXCF4336 16.85 9 I SXCF828 IA51E41 622.16 Mean= 1.45E.01 88.55 Sigma=
M.an %ofTotal= . .
1.59% 1 98.03% I 0.16% 100.00%
TABLE 4 - Mean Percent of Total for Positive Nuclides SNECSampe No LouomonlDescriptNon Co-0 C0.137 Am-241 Pu-239 Total I SXIOGV032i s$ maitPhallEb_ 18 spp2".Ay1N3 IWMln 99.89% o0.1% 100.00%
2 SXIOSDO0368 SS lt^uT ArelAW-32 100.00%
dl_ 100.00%
3 SXCF1210 SSGS F Center S Cteeos Otk#N 01 MO00 100.00%
4 SXCF353t Si cow.n Ftoelcore 9. SRi 100.00% 100.00%
5 SXCF4323 7 86 1 100.00% 100.00%
6 SXCF4325 ^$069 Ao.? 9NSSice
$ 1, `01110% 100.00%
7 SXCF4330 5 5iS 85142 SWSs 1.1 I =1J0% 100.00%
N SXCF4336 ISG l~o wUriSSl4-IAP" I______
100.00%
9 SXCF826 :SE.tsktl 0.23% 99.70% 0.05% 0.02% 100.00%
Mearc 2.27E.03 1.00E.00 7.92E-04 2.33E.04 1.00 Sigma=* 0.001 O.OOOS MeanXof Total, 0.23% 99.67% 0.08% 0.02% 100.00%
TABLE 5 - Ratio to C- 137 for Positive Nuclides
&NECS..
I SXIOGMM 2
3 SX10S0030 SXCF12i1 I
'1f I 4§- "I lAILIW I1 I 1l-1.00 4 SXCF3S3i r ] _ _ 1 0_E_110_ _ _ 100 6 SXCF4323 1.00E.00 1.00 S SXCF4325 I 1 _II _ ~1A E-.0 I _ I__ _ I_ 1.00 IAOE40 1.00
_ ___ __ 2__ _ _ 1 1.00 2.27E43 t.6E404 l 2.34E.44 1.00 Metan 2.27E.03 1.00E-00 7.93E.04 I 2.34E.04 1.00 Uian.-:
Meon % of Total=
4
Table 6 Effective DCGL Calculator for Cs-137 (dpml100 cmA2) I Ms,~"~ W II
- - --- - - - - .. -J I..
13615 jdpmlD11cmA2j 10211 -dpm1iOO cmA2 25.01mremly TEDE Limit -- --. - - - - - - - -- ----
-' ' - '. ' - '-I-' -'--' -- - '--'---'-
- --- 1. 1-- -.- "
lSAMPLE lo0s)=] SSGS AREA 13571 jdpmlGO cmA2 10178 IdpmiiOOcm-2 lliSNECAL4 75%
Individual Sample input Limits Allowed Beta dpml100 Alpha dpml1O0 IIsotope (pCilg, uCi, etc.) '; of Total (dpmlIO cmA2) dpml10 cm^2 mremly TEDE cmA2 cmA2 i Am.241 7.92E-04 0.079% 27 10.75 9 95 10.75 Am.241 2 C.14 0.000% 3,700,000 0.00 0.00 0 00 C.14 3 Co.60 2.27E-03 0.226% 7,100 30.81 0.11 30.81 tU4i,,,, ,, Co.60 4 Ci:13LAM4RAiM, tll1tOOEiDOIU4., R 2,%99.62% ,, It 1357O.590 12 t1 .... .. cB.137 "
5 Eu-152 0.000% 13,000 0.00 0 00 0 00 .... Eu-152 6H.3 0.000% 120,000,000 0.00 0.00 Hot Detectable - V
- H-3 7 N1i-63 0.000% 1,800,000 0.00 0.00 Hot Detectable - -63 E Pu.238 0.000% 30 0.00 0.00 0 00 0.itrA Pu.238 s Pu.239 2.33E.04 0.023% 28 3.16 2 82 : 3 16 Pu.239 10 Pu-241 0.000% 880 0.00 0.00 hot Detectable ] Pu-241 11 Sr-90 0.000% 8,700 0.00 0.00 0 00 Sr.90 100.000% 13615 25.0 13601 14 Maximum Il . ~Permissib',e dpm?100 cm^12 5
Table 7
- - --- j ~ S c'A 1 1. -... p I
- 1. I ... I
-I
_ _ -L. lNSE;I 75'o I -. _______________ I Effective DCGL Calculator for Cs- 137 (In pCUg) 6.58 IpCUg I 4.94 IpCVg i1 SAMPLE HUMBER(s)r}
.. .. I SSGS AREA
-_-I .I_- _
'- '1 I ------
.. -. L_ . .-- ..
15.24% 25.0 mremly TEDE Limit . I. 6.56 1 4.92 IpCi1uIg 0.35% mrem.v Drinkino Water (DW) Limit i Cheik for 25 rtemey I
Sample Input I Isotope Am.241 (pCig, uCi, %
of Total, etc.) %of Total 0.001 0 079%
25 mremly'TEDE Limits (pCltg) 9.9 20.01 A . Allowed pCirg for 25 mremly TEDE iy0 Value Checked from Column Aor E 0 01 This Sample mremV TEDE O00 10 mwwwo I Am.241 2 C.14 0 000% 2.0 0.00 0 00 ° co 14 C-lC 3 Co-60 0.0023 0 226% 3.5 0 01 01 0 02 C s 137 4 CSO 37 1.0000 99 671% 6.6 6.56 1 .
6 Eu.152 0 000% 10.1 0.00 0.00 6 H.3 0 000% 132 0 00 0 00 7 111.63 0 000% 747 0 00 8 Pu-238 0 000% 1.8 00.00 00 0 00 EPu.-238 9 Pu.239 0.0002 0 023% 1.6 0 00 0O00 000 cPu.239 10Pu.241 0 000% 856 000a Do 0 00 Pu.241 11Sr.90 _0.00% 1.2 .0 00 _ 000 cSr.90 1
1.OOE400 I 100.000% . . . . . I 6.58 - 284.22 ____________I 6.58 3.810 1 0.014 Maximum Permissible Maximum To Use This Information, pClvg Permissible pCIg Sample Input Units Must Be In (25 mremly) (4 mremky) pCi/g not %of Toal.
6