ML052090304

Appendix B Snec Calculation Dose Assessment of Results.

ML052090304
Person / Time
Site:	Saxton File:GPU Nuclear icon.png
Issue date:	07/31/2005
From:	GPU Nuclear
To:	Office of Nuclear Reactor Regulation
References
Download: ML052090304 (53)

Text

Appendix B SNEC Calculation Dose Assessment of Results

ORIGINAL SNEC CALCULATION COVER SHEET CALCULATION DESCRIPTION Calculation Number Revision Number Effective Date Page Number E900-04-008 0 / (67 1 of 10 Subject Assessment of E900-03-030, Rev 0 - Seal Chambers - Survey Plan Question I - Is this calculation defined as 'In QA Scope'? Refer to definition 3.5. Yes 0E No a Question 2 - Is this calculation defined as a 'Design Calculation"? Refer to definitions 3.2 and 3.3. Yes 0 No I Question 3- Does the calculation have the potential to affect an SSC as described in the USAR? Yes 0 No 0D 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 Originator's 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 APPROVAL SIQNATURES Calculation Originator P. Donnachie/ Date 6/i//a9 Technical Reviewer B. Brosey/lY Date Additional Review A. Paynter Date Additional Review Date SNEC Management Approval Date

F?-- SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-04-008 l0 Page 2 of 10 Subject Assessment of E900-03-030, Rev 0 - Seal Chambers - Survey Plan 1.0 PURPOSE 1.1 The purpose of this calculation is to review and update a previous survey design developed for the three (3) Seal Chambers. These areas are Class I survey units and are located adjacent to the Discharge Tunnel. The original survey design was E900-03-030 (see Reference 3.1). The reason for this update is that new surface DCGLw values have now been reviewed and are concurred for use by US NRC. The new DCGLW values are lower than the values previously used in Reference 3.1.

DCGLw Comparison Values FSS Calculation No. Original Surface DCGLw (dpmI100 cm2) Original Volumetric DCGLw (pClg)

E900-03-030, Rev 0 GA = 8,543 (6,407 A.L.) 6.38 (4.78 A.L.) for Cs-137 FSS Calculation No. Updated Surface DCGLw (dpmI100 cm') Updated Volumetric DCGLw (pClfg)

E900-04-008, Rev 0 GA = 7,650 (5,737 A.L.) 3.19 (2.39 A.L.) for Cs-137 1.2 As a result of this assessment no additional FSS surveys are needed to augment the previous survey design developed in Reference 3.1.

2.0

SUMMARY

OF RESULTS 2.1 A review has been performed of the data collected during the original FSS survey of the Seal Chamber 1, 2 and 3 areas under SR-103 (Reference 3.2). Attachments 1-1 to 1-4 indicate that all 31 randomly placed static survey points taken with a Ludlum 2350-1 w/43-68B probe, showed no net surface activity concentrations above the previously defined surface DCGLw limit (6,407 dpm/100 cm2 = 646 ncpm).

2.2 The revised surface DCGLw value per Attachment 2-5 is 5,737 dpm/100cm2 . Using the COMPASS program a new static DCGLw limit has been calculated for all the Seal Chambers (see Attachments 3-1 to 3-19). The minimum COMPASS calculated static limit for measurement is 578 ncpm.

2.3 The original mix used.in Reference 3.1 was 96.4 % Cs-137 and 2.6% Ni-63. The new mix assessment (Attachments 2-1 to 2-6) indicates that the predominant radionuclide mix is 85.1% Cs-137 and 13.9% Sr-90 both of which contribute 99% of the total counting efficiency. Co-60 and Pu-239 account for the remaining 1% of the mix and are not considered contributors to the total counting efficiency. Since both Cs-137 and Sr-90 make up 99% of the mix the new total counting efficiency has improved over the previous one calculated in Reference 3.1 (i.e. 96.4% Cs-137).

2.2 The detection efficiency for this area was originally corrected by an efficiency loss factor based on a surface roughness assessment of the concrete material in this area. For comparison, detection efficiency correction factors for the previous survey design and the current assessment are provided below.

, SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-04-008 I) Page 3 of 10 Subject Assessment of E900-03-030, Rev 0 - Seal Chambers - Survey Plan Detection Efficiency Data FSS Calculation No. Ei Cs  % Cs-137 Efficiency Loss Factor countsldisintegration E900-03-030, Rev 0 0.509 0.5 0.96.4 0.33 0.080

% Sr-90 &

FSS Calculation No. Cl es Cs-137 Efficiency Loss Factor counts/disintegration E900-04-008, Rev 0 0.509 0.5 0.99 0.33 0.083 2.3 The overall counting efficiency for this assessment has been increased by the use of the latest mix as shown below.

1-(0.080/0.083) = 0.037 x 100% resulting in an -4% increase In detection efflciency from the previous survey design.

2.4 These new parameters were incorporated into the Compass computer program to assess the consequences of this overall efficiency gain (Reference 3.3). A re-assessment of the MDCscan and action levels are also performed.

2.5 Gas Flow Proportional Counter (GFPC) Measurements 2.5.1 As a result of this assessment, GFPC scanning and fixed-point measurements have met the original design criteria and do not need to be performed again.

2.6 Nal Scanning Measurements 2.2.1 From Reference 3.2, the results of all Nal scanning of the all three Seal Chambers indicated less than the action level (2 200 gross cpm). Therefore, no additional Nal scan work is necessary.

3.0 REFERENCES

3.1 SNEC Calculation No. E900-03-030, "Seal Chambers - Survey Plan", Rev 0,11-17-03.

3.2 SNEC Survey Request No. SR-103, SSGS Discharge Tunnel Seal Chambers".

3.3 Compass Computer Program, Version 1.0.0, Oak Ridge Institute for Science and Education.

3.4 GPU Nuclear, SNEC Facility, SSGS Discharge Tunnel Drawing, SNECRM-018 Sheet 1, Rev 0.

3.5 ISO 7503-1, Evaluation of Surface Contamination, Part 1: Beta-emitters (maximum beta energy greater than 0.15 MeV) and alpha-emitters, 1988.

3.6 SNEC Procedure E900-IMP-4500.59, "Final Site Survey Planning and DQA".

3.7 Plan SNEC Facility License Termination Plan.

3.8 SNEC Calculation No. E900-03-012, Effective DCGL Worksheet Verification.

3.9 SNEC procedure E900-IMP-4520.06, "Survey Unit Inspection in Support of FSS Design".

3.10 MicroShield, Computer Radiation Shielding Code, Version 5.05-00121, Grove Engineering.

- -= SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-04-008 0 Page 4 of 10 Subject Assessment of E900-03-030, Rev 0 - Seal Chambers - Survey Plan 3.11 SNEC procedure E900-IMP-4520.04, "Survey Methodology to Support SNEC License Termination".

3.12 NUREG-1575, 'Multi-Agency Radiation Survey and Site Investigation Manual", August, 2000.

3.13 Microsoft Excel 97, Microsoft Corporation Inc., SR-2,1985-1997.

4.0 ASSUMPTIONS AND BASIC DATA 4.1 This assessment and resulting survey design adjustment uses an effective surface gross activity DCGLw and volumetric Cs-137 surrogate DCGLw values developed for and reported in Attachments 2-1 to 2-6.

4.1.1 Cs-137 and Sr-90 account for the majority (99%) of the total activity in the current sample mix.

Cs-1 37 and Sr-90 provide the only reasonably detectable radionuclide in this mix. Cs-1 37's detection efficiency has been checked by SNEC personnel using ISO standard 7503-1 methodology (Reference 3.5). Sr-90's detection efficiency is higher than Cs-137 but has not been documented. For purposes of this calculation the Sr-90 detection efficiency will be considered the same as Cs-137. The SNEC facility uses only the lowest reported efficiency for any of the instruments available for the survey work as input to the survey design process.

4.2 The current version of Compass (version 1.0) does not perform correctly when using the gross activity option for multiple radionuclides. Therefore, an alternative was implemented for this survey design. This alternative involves several small changes that will not negatively impact the survey design process. These changes are:

4.2.1 For this survey design, the effective efficiency will be calculated using the following:

.*i = 0.509 x [any surface condition correction factor (i.e. 0.33) that impacts efficiency e.g., the impact from an increase in the average distance between the detector and source caused by a rough surface (uneven source area)].

• Cs = [0.5 (ISO for Cs-137 energy betas)] x [the fraction of Cs-137 in the source area, which would be 1 for the Cs-137 calibration source or 0.917 for Cs-137 in the SSGS footprint]

4.2.2 A radionuclide was created in the library of Compass called "Gross Activity". This radionuclide has the same nuclear parameters as Cs-137 (half-life, decay time, etc.).

The effect will be (when called up) that "Gross Activity" will replace Cs-137 on the printout from the Compass program (administrative impact only).

4.2.3 Only "Gross Activity" will be used in the Compass program for this survey design.

However, the Area Factors (AF) input to Compass will be for Co-60, which is the more conservative of all SNEC AF values for radionuclides present in the mix. Note that Co-60 AF values are very close to Cs-137 AF values. There is no significant impact from using Co-60 area factors.

4.3 The GFPC detectors physical probe area is 126 cm2, and the instrument is calibrated to the same source area for Cs-1 37. The gross activity DCGLw is taken to be 5,737 dpm/1 00 cm2

a nt SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-04-008 0 Page 5 of 10 Subject Assessment of E900-03-030, Rev 0 - Seal Chambers - Survey Plan x (126 cm2 physical probe area/100 cm2 ) = 7,229 x (0.99 disintegration of Cs-137 & Sr-90 disintegration in mix) x ci (0.509) x e, (0.5) x 0.33 (distance factor) which yields 601 net cpm above background (COMPASS calculated 578 ncpm). The 0.083 count per disintegration counting efficiency considers both the Cs-137 and Sr-90 contaminants.

4.4 Background Explanation - The GFPC instrument was used for both steel and concrete surfaces so background was evaluated for both types of materials. A 211 cpm background value is the mean value from the Williamsburg steel. The Intake Tunnel entrance way was used as representative concrete background yielding a value of 340 cpm. Since the Seal Chambers are a sub-surface structure a correction to the mean open-window background is necessary for both material types. In section 4.12.1 the corrected values are 223 +/- 56.8 cpm for concrete and 164 +/- 17.7 cpm for steel. Regardless of either of these two values, the actual variability from Seal Chamber 2 is higher and was used in the original calculation to yield the number of randomly placed static survey points. Seal Chamber No. 2 has a variability of 244 +/- 68.1 cpm.

Background is determined in each Seal Chamber (SC) area at the time of the survey process based on closed window readings of the material type to be surveyed. The closed window mean for each Seal Chamber (I to 3) was 138, 138 and 197 cpm respectively. The mean of the closed window measurements on steel from SC3 was 153 cpm. Then the action level of 300 ncpm (specified in the original calculation) plus these backgrounds would have been 438 (300+138), 438 (300+138), 497 (300+197) and 453 (300+153) cpm.

These alarm points meet the requirements for scanning the Seal Chamber surfaces using the new radionuclide concentration mix.

With the new mix these areas had an adequate number of fixed-point measurements based on the original calculation with the exception of Seal Chamber 2. However, when the values from the final status survey results (fixed points) are used to adjust the original estimate of variability, the actual number of fixed point measurements would be adequate based on the revised DCGL. Therefore, the number of points chosen for each area was sufficient (9 for SC I and 2, and 13 for SC3). The downcomers in SC3 were considered separately and 9 points were placed on them collectively. The downcomers represent the majority of all steel surfaces in the Seal Chambers.

4.5 Data From the Original Calculation No. 900-03-030 - From Attachment 14-2 in the original calculation (Seal Chamber 1), the DCGL was determined to be 646 cpm. The LBGR was set to 450 cpm. Thus the number of randomly chosen static points indicated was 8. The MDCstatic for concrete was determined to be 719 dpm/100 cm2 . The steel value was determined to be -600 dpm/100 cm2. The MDCscan was reported to be 1,411 dpm/100 cm2 for a concrete surface. The steel MDCscan value was determined to be 1,167 dpm/100 cm2 . These numbers were identical for Seal Chambers 2 and 3.

4.6 The new DCGL was determined to be 578 cpm based on the newest mix for theses areas.

An appropriate LBGR was determined to be 475, 440, and 490 for Seal Chambers 1, 2, & 3 respectively and 525 cpm (for steel in SC3). The number of randomly chosen points is calculated to be 8, 9, and 9 for Seal Chambers 1, 2, & 3 and 8 for the extemal steel surface of the down comers in Seal Chamber 3. The original alarm set-point was 300 cpm above background for all areas and surfaces. Based on the corrected Seal Chamber 1 concrete values, an MDCstatic value of 734 dpm/100 cm2 for each of these areas concrete can be calculated. A steel MDCstatic value of 620 dpm/100 cm2 is also calculated. A recalculation

E m SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-04-008 0 Page 6 of 10 Subject Assessment of E900-03-030, Rev 0 - Seal Chambers - Survey Plan of the MDCscan values yields 1,442 for concrete and 1,210 dpm/100 cm2 for steel. These values are not much different than the original and are below the DCGL so the new values meet the expected criteria.

4.7 Nal Scans of Small Rough Surface Areas - The original calculation disallowed any survey with a GFPC of surfaces that were too rough or corroded (steel). The results of the survey (Attachment 1-1, SR-103), indicated that there were approximately 15.1 square meters of this type of surface present in the three survey units (from Section B of SR-103). Then the fraction of total area that was scanned using the alternate criteria (a 44-10 Nal probe), was 15.1 m2/(73+71+109 M2 ) x 100% = 6%. Additionally, the Nal scan depends only on the Cs-137 content of the mix. Since the new mix is only 85.119% the MDCscan and MDCstatic values must be corrected as well.

Nal MDC Values (dpmO100 cm2- Cs-137)

Original MDCscan Background (cpm) Conversion (cpmluRih) Scan Rate (cmlsec) 4993 100 176.08 5 For the previous calculation, the corrections necessary to convert to a gross activity DCGL (A.L.) are then applied as shown below.

ginal GA MDCscan GA DCGL (A.L)

'Cscan Cs-137 Fraction MDCscan < Limit ?

93 0.96364 5181 6407 yes For the new mix the numbers are as follows:

final GA MDCscan GA DCGL (A.L)

Cscan Cs-137 Fraction MDCscan < Umit ?

3 0.85119 5866 5737 No The scan limit exceeds the A.L. limit using the new mix. On the other hand, the actual DCGL limit for Cs-1 37 is 6511 dpm/100 cm2 . So the result is still OK - overall. But, 200 gross cpm is used as the action level. Background in these areas for the Nal detector can be estimated from the least contaminated Seal Chamber (1), which had a mean of 63 cpm (from SR-1 03). Since the action level triggers on gross cpm, a worst-case condition is in a low background area. Then 200 - 63 cpm = -138 net cpm that could have been missed without alarming the instrument. The actual instrument used for the survey had an conversion efficiency of 177.185 cpm/uR/h (from the original survey records) Then 138 ncpm x 1 uR/h/177.185 cpm = 0.7788 uR/h/(0.348 uR/h per 22.492 pCicm2) = (11,175 dpm/100 cm2 )/0.85119 = 13,129 GA dpm/100 cm2. This is the maximum value that could have been missed in the 15.1 m2 area if background was at the lowest mean value.

The 15.1 m2 of area may be broken down further as follows:

M, SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-04-008 0 Page 7 of lo Subject Assessment of E900-03-030, Rev 0 - Seal Chambers - Survey Plan

• Seal Chamber 1 = -4.3 m2 (AF = 3.61, Cs-1 37),

• Seal Chamber 2 = -4.8 m2 (AF = 3.46, Cs-1 37),

• Seal Chamber 3 = -5.9 m2 (AF = 3.13, Cs-137).

A conservative area factor of 3.13 (Cs-137) can be applied to the new DCGL value of 7,650 dpm/1 00 cm2 yielding a GA DCGL of 23,945 dpm/100 cm2 (17,958 dpm/1 00 cm2 75%

admin level) for each of these rough surface areas. Thus the sensitivity of the Nal detector was adequate to meet the surface contamination limit when area factors are applied.

Finally, the Nal detector responds to both surface and volumetric contamination and a significant portion of the 138 net cpm may not be surface phenomena at all, but is an exposure rate from volumetric contamination of the concrete (in pCi/g). Volumetric contamination must be considered using an entirely different approach.

4.8 Impact of Volumetric Contamination - Samples taken at Nal alarm points yielded a maximum concentration of 4.3 pCi/g Cs-137, with a range of values from 0.6 to 4.3 pCi/g (2.53 pCi/g mean). In addition, a Nal measurement was taken at each fixed-point location in each Seal Chamber. These measurements can be used to develop a mean concentration for each Seal Chamber. The mean count rates are:

• Seal Chamber 1 = 62.5 cpm

• Seal Chamber 2 = 97.2 cpm, and

• Seal Chamber 3 = 121.3 cpm Using the lowest measured value from Seal chamber 1 as an estimate of background, a mean volumetric concentration for the three survey units can be determined. Then:

• Seal Chamber I = 62.5 - 55.2 cpm = 7.3 cpm/177.185 cpm/uR/h = 0.0412 uR/h/0.2448 uR/h per pCi/g = 0.17 pCi/g average Cs-137.

• Seal Chamber 2 = 97.2 - 55.2 cpm = 42 cpm/1 77.185 cpm/uR/h = 0.237 uR/h/0.2448 uR/h per pCi/g = 0.97 pCi/g average Cs-137.

• Seal Chamber 3 = 121.3 - 55.2 cpm = 66.1 cpm/177.185 cpm/uR/h = 0.3731 uR/h/0.2448 uR/h per pCi/g = 1.52 pCi/g average Cs-137.

The floor area of Seal Chamber 3 is used as the modeled area size yielding an exposure rate of 2.448E-04 mr/h per pCi/g Cs-137, and assumes a depth of 1"for the contamination layer.

Then the total exposure rate at the center of Seal Chamber 3, 1 meter from the floor using a Cs-137 concentration of 1.0 pCi/g is:

Floor = 7.195E-05 mr/h Ceiling = 3.214E-05 mr/h Large Walls = 1.174E-04 mr/h x 2 2.348E-04 mr/h Small Walls = 6.051E-06 mr/h x 2 = 1.2102E-05 mr/h

SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-04-008 0 Page 8 of 10 Subject Assessment of E900-03-030, Rev 0- Seal Chambers - Survey Plan Which yields = 3.51 E-04 mr/h per pCi/g x 1.52 pCilg (mean concentration for worst case Seal Chamber 3) = 5.335E-04 mr/h x 2000 hrs = 1.07 mr -=1.07 mrem/y.

Undisturbed concrete (building occupation, not renovation) does not yield a significant additional contribution from inhalation or ingestion pathways. Therefore, the direct exposure pathway is the only important dose.

4.9 The Area Factors for this survey unit is shown below (Co-60). These values were input to the Compass computer program. The lower limit area factor for areas less than I square meter is the value 10.1. Area factors for values listed in the following table, are interpolated from the data by Compass.

AREA (m') AREA FACTOR 1 10.1 4 3.4 9 2.0 16 1.5 25 1.2 36 1 5.0 CALCULATIONS 5.1 All major calculations are performed internal to applicable computer codes or within an Excel spreadsheet. These calculations are discusses in the Assumptions and Basic Data section above.

6.0 APPENDICES 6.1 Attachments 1-1 to 1-6 are an "information only" copy of the SR-103 FSS summary results (Reference 3.2).

6.2 Attachments 2-1 to 2-6 are the latest SNEC sample results for nine (9) samples used to develop a representative mix for this survey unit. These sample results were reviewed and concurred with by the US NRC and its contractor ORISE.

6.3 Attachments 3-1 to 3-19 are new COMPASS output reports for Seal Chambers 1, 2 and 3.

These attachments also include Williamsburg background values and Seal Chamber variability measurements.

6.4 Attachments 4-1 to 4-11 contain the Microshield Version 5.05 exposure rate analyses for Seal Chamber 3.

s ep SNEC CALCULATION SHEET Calculation Number . Revision Number Page Number E900-04-008 0 Page 9 of 10 Subject Assessment of E900-03-030, Rev 0- Seal Chambers - Survey Plan Exhibit I SNEC Facility Individual Radionuclide DCGL Values ()

25 mremly Limit 4 mrem/y Goal 25 mremly Limit (All Pathways) (Drinking Water)

Radionuclide Surface Area Open Land Areas Open Land Areas lb' (dpml100cm ) (Surface & Subsurface) (Surface & Subsurface)

(pCi/g) (pcilg)

Am-241 2.7E+01 9.9 2.3 C-14 3.7E+06 2 5.4 Co-60 7.1 E+03 3.5 67 Cs-137 2.8E+04 6.6 397 Eu-152 1.3E+04 10.1 1440 H-3 1.2E+08 132 31.1 Ni-63 1.8E+06 747 1.9E+04 Pu-238 3.OE+01 1.8 0.41 Pu-239 2.8E+01 1.6 0.37 Pu-241 8.8E+02 86 19.8 Sr-90 8.7E+03 1.2 0.61 NOTES:

(a)While drinking water DCGLs will be used by SNEC to meet the drinking water 4 mrem/y goal, only the DCGL values that constitute the 25 mrem/y regulatory limit will be controlled under this LTP and the NRC's approving license amendment.

(b) Listed values are from the subsurface model. These values are the most conservative values between the two models (i.e.,

surface &subsurface).

-- _ aSNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-04-008 0 Page 10 of 10 Subject Assessment of E900-03-030, Rev 0 - Seal Chambers - Survey Plan Exhibit 2 Survey Design Checklist Calculation No. l Location Codes E900-04-008 l Seal Chambers 1, 2, & 3 reassessment Status Reviewer ITEM REVIEW FOCUS l(Circle One) Initials & Date Has a survey design calculation number been assigned and is a survey design summary N/AfN/

. description provided? Q ) j1N/

2 I

Are drawings/diagrams adequate for the subject area (drawings should have compass headings)? _

Yes, AD 3 Are boundaries properly Identified and is the survey area classification clearly indicated? Yes 4 Has the survey area(s) been properly divided into survey units IAW EXHIBIT 10 Yes,(q) 5 Are physical characteristics of the area/location or system documented? YesN) 6 Is a remediation effectiveness discussion included? Yes/ N/A 7 Have characterization survey and/or sampling results been converted to units that are NA comparable to applicable DCGL values?

8 Is survey and/or sampling data that was used for determining survey uni variance included? X ? N/A 9 Is a description of the background reference areas (or materials) and their survey and/or N/A sampling results included along with a lustification for their selection? (___'

10 Are applicable survey and/or sampling data that was used to determine variability included? e N/A W1the condition of the survey area have an Impact on the survey design, and has the Vlill eae s /A probable impact been considered in the design? __ _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 Ye IA design?_

13 Are all necessary supporting calculations and/or site procedures referenced or included? (CD N/A 14 Has an effective DCGLw been identified for the survey unit(s)? @DNNIA 15 Was the appropriate DCGLrF.c Included in the survey design calculation? e , N/A 16 Has the statistical tests that will be used to evaluate the data been identified? Ye) N/A 17 Has an elevated measurement comparison been performed (Class I Area)? < Y N/A 18 Has the decision error levels been identified and are the necessary justifications provided? Ye N/A 19 Has scan instrumentation been identified along with the assigned scanning methodology? es N/A 20 Has the scan rate been identified, and is the MDCscan adequate for the survey design? es N/A 21 Are special measurements e.g., in-situ gamma-ray spectroscopy required under this design. Yes and Isthe survey methodology, and evaluation methods described? Yes 22 Is survey Instrumentation calibration data included and are detection sensitivities adequate? YesfiR/IA 23 Have the assigned sample and/or measurement locations been clearly identified on a diagram Yes 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 :Yes /

clearly indicated? r sN/A 25 For sample analysis, have the required MDA values been determined.? Ye /

26 Has any special sampling methodology been identified other than provided in Reference 6.3? Yes, N/A A D NOTE: a copy of this completed form or equivalent, shall be included within the survey design calculation.

RESULTS

SUMMARY

FOR SR-103 SR-103 was issued to perform FSS of the SSGS Seal Chambers. These survey units are Class 1 areas. Seal Chamber #1 is 73.1 M2, S.C. #2 is 70.9 M2, S.C. #3 including 4 downcomers is 109.4 i 2. This SR covers survey units SS8-1, 8-2, 8-3(S.C. #3 and downcomers). The survey design calculation number is E900-03-030. The SR required the following radiological measurements:

• Surface Scan Measurements Using a 2" x 2' Sodium Iodide Detector - required for all areas not able to be surveyed by the 43-68B Detector. Scan within 2" of surface and performed at a rate not exceeding 5 cm/second. The action level was > 200 gross cpm.

• Surface Scan Using the L-2350 with 43-68B GFPC Detector- 100% scan is required. Scan within 2' of surface at a rate not exceeding 2.2 cmn/second. The action level is > 300 above ABCR.

• Static Measurements Using a 2" x 2" Sodium Iodide Detector - obtain 5-minute static measurements at the locations listed in the SR at a fixed distance of 2 inches.

• Static Measurements Using the L-2350 with 43-68B GFPC Detector - obtain 1-minute static measurements at the locations listed in the SR on contact with the surface.

• Concrete Samples - obtain core bore samples (approx. 4 in depth) of areas indicating activity in excess of the scan action levels. If no action level is exceeded, obtain at least sample from each Seal Chamber In the location indicating the highest activity (Nal scan).

• Steel Scraping Samples - obtain asample (minimum 25 cc) of steel surfaces indicating activity in excess of the scan action levels.

• Loose Surface Contamination (Smear Survey) - obtain at least one smear at each static measurement location listed on the SR, (following the static measurement).

• Additional measurements may be obtained as requested by the SR Coordinator.

• QC Repeat Measurements / Replicate Analysis - A minimum of 5% of all measurements and sampling will be re-performed and analyzed using identical methodology and IAW E900-IMP-4520.04.

1. Summary of Scan Results A. Surface Scan Measurements Using the 2"x 2" Nal Detector Surface scans were performed in the areas not able to be surveyed using a GFPC detector. These areas were extremely corroded steel, core bores, and rough concrete. Action level was 200 gross cpm.

Results: All areas indicated levels below action level.

Page 1 of 4 ,YC/leA7L ,C.. /-

B. Surface Scan Using the L-2350 with 43-68B GFPC Detector Surface scans were performed on all surfaces in the seal chambers with the exception of surfaces of either extremely corroded steel, core bore holes, or rough concrete for a total of 15.1 m2 of area. These areas were therefore surveyed using a 44-10 detector. Action level was 300 ncpm.

Results: All areas indicated activity below action level except for an area in Seal Chamber #2. A 1-minute static measurement was obtained of the surface indicating the highest activity (designated AP1-1). This measurement indicated 337 ncpm. The total surface area indicating elevated activity is approx. 1.3 m2.

C. Non-Biased Static Measurements Using a 44-10 Nal Detector Static measurements were obtained in each location listed on the SR. There was no action level.

Results: All measurements are listed in the table below:

D. Static Measurements Using the GFPC Detector Static measurements were obtained in each location listed on the SR.

Results: All measurement pairs' results were below the established DCGLW of 646 ncpm. The following table lists the locations with the results:

Page 2 of 4 X/-

Smear Results Shielded Unshielded (ncpm/100cm 2 ) Shielded Unshielde4 S.C. # - S.C. # -

Reading Reading Reading Reading Static (gross Beta-T Static (gross (gross (gross Location I cpm) cpm) Gamma I Alpha Location cpm) cpm)

(1o% eff.) (30% eff.)

E. Concrete Samples Four concrete samples were obtained, including a QC sample taken at S.C. #2 API-1. The highest result indicated 4.3 +/- 0.5 pCi/g Cs-137, <0.1 pCVg Co-60. All samples indicated positive Cesium contamination ranging from 0.6 to 4.3 pCi/g. The average achieved MDA for Co-60 was 0.1 pCi/g.

Page 3 of 4 /, G z.e.A t /- $

F. Steel Scraping Samples None were required.

G. Loose Surface Contamination (Smear Survey) 40 smears were taken. Results indicated <MDC for beta-gamma (166 dpm/100 Cm 2 ) and <MDC for alpha (11.6 dpm/100 cm) for all seal chambers. Isotopic analysis of smears indicated <1.2 E -5 uCi/group Cs-137, <9.0 E

-6 uCi/group Co-60.

H. Quality Control (QC) Measurements and Comparisons

• Repeat Scan/Static Measurements and Surface Soil Sampling was performed and met the applicable acceptance criteria established in Section 4.6 of E900-IMP4520.04 except for one static measurement comparison in S.C. #1, FP #5. shielded reading. Following an investigation, no obvious cause for this failure could be concluded. Since this measurement pairs' net difference is less than 10% of the established DCGL the failure does not negatively impact the validity of the survey data. The results are accepted.

• Replicate Analysis was performed on 8 smears and on the smear composite. Results meet the requirements stated in E900-QAP-4220.02.

2. Exceptions and Discrepancies:

A. Seal Chamber #2: Survey Point #9 is located 18' closer to the east wall than the survey design calculation Indicates. This was due to an omission on the part of the survey designer of an 18-inch ledge not included In the calculation. Survey designer and SR Coordinator notified.

B. Seal Chamber #3: Survey Point #12 was relocated 4 inches to the east to capture surface area. The survey design had placed the point within the air space of a window. Survey designer and SR Coordinator notified.

C. The QC static measurement comparison failed to meet the requirements established in E900-IMP-4520.04.

As stated in section IH, this failure does not adversely impact the validity of the static measurements. The results are accepted.

David Sarge (GRCS) pV g Date l;9. q3 Page 4 of 4 7XCC.At1Cfr + /_ /

E900-IMP-4520.04 EXHIBIT 10 ORiGiNAL

, L> ...:--.eSURVEY DATA VERIFICATION ANDVAL-IDATIONFORM 2

,sre,.!..O ineU tNambr it'l SS8-1, SS8-2, and SS8-3 SR lSRNumber 4.

0103

. Checkt eanropriap. answer for eactestion i

1. Was each radiological Instrument capable of detecting the radiation of Interest at or below the Investigation X level? It not, acceptable compensatory measures have been taken.

2. Did each radiological Instrument have a current calibration and were radioactive sources used for calibration X traceable to recognized standards or calibration organizations?

3. Was each radiological instrument source checked daily (before and, where required, after use)? X

4. Were survey team personnel properly trained In the applicable survey techniques, and was the training X -

adequately documented?

5. Were the MDCs and the assumptions used to develop them appropriate for the Instruments and survey X methods used to collect the data?

6. Were the survey methods appropriate for the media and types of radiation being measured? X

7. If special measurement methods were used to collect data, were they properly documented In accordance with X approved site procedures?

8. Were the samples adequately tracked from their collection point (Field Sample Collection Sheet) and through X the analysis process In accordance with the SNEC Sample Chain of Custody Program? _

9. Were the data collected Inaccordance with the Survey Design Package and Survey Request? X

10. Were the data representative of current site conditions? X

11. If Survey Request Investigation levels were exceeded, was appropriate action taken? X

12. Were at least 5% of all survey and/or sample points randomly re-sampled and/or re-surveyed using Identical X methodology contained Inthe Survey Request per Section 4.6.27

13. Were the samples analyzed In accordance with requirements contained in the Survey Request Sample X Analysis Sheet?

14. Did all sample analyses meet the MDA requirements contained In the Survey Request Sample Analysis Sheet X and Step 4.5.2 (10% of the applicable DCGLs)?

15. Were at least 5% of FSS samples obtained under the Survey Request re-analyzed? Were replicate analysis X calculations performed per Section 4.6.3?

16. Were documented Investigations performed for all survey and/or sample QA/QC non-agreements (Questions X 12 & 15 above) and were corrective actions Implemented as necessary?

17. Has the GRCS summary of surveying/sampling results been completed per Step 4.7.3? X NOTES: If the question does not apply to the survey package, check the N/A (not applicable) box. If a 'No' answer Is obtained above, the GRCS should Initiate corrective action In accordance with site procedures. Document actions taken and/or justifications In the 'Comments' section below. Attach additional sheets as necessary.

Question #9 Response:

As stated on the SR Closeout, Seal Chamber #2 Survey Point #9 is located 18' closer to the east than the survey design calculation indicated. This was due to an omission of an eighteen-inch' ledge not included into the calculation. Additionally, S.C. #3, Survey Point #12 was relocated 4 inches to the east to capture surface area. The survey design had placed the point within the air space of a window. Survey designer and SR Coordinator notified.

GRCS (print/sign) I D. Sarge / NhJ'_ I Date l 12/09/03 1",M0acltvt<eq7 /_5-

SNEC SURVEY REQUEST DATA SR 0103 SAMPLE NUMBER GAMMA LOG# ANALYSIS ADDITIONAL SAMPLE SAMPLE SAMPLE DESCRIPTION SAMPLE SAMPLE RESULTS/2-SIGMA RESULTS/2-SIGMA DATE TIME WEIGHT(gl VOLUME (cc)

UNCERTAINTY UNCERTAINTY SX SM 4335 1-15001 Cs-137 <1.2E-5uCi 11/24/03 1500 Seal Chambers 1.2, & 3 and Downcomers - N/A N/A Co-60 <9E-6 uCi Fixed Point smears Additional Info SX CW4337 5-15033 Cs-137 0.6 pCi/g 0.14 11/26/03 0820 SS8-1 Seal Chamber #1 FP-1 120 100 Co-60 <0.1 pCi/gPCI/a Additional Info SX CW4338 1-15032 Cs-137 4.3 pCi/g 0.5 p 11/26/03 0845 SS8-2 Seal Chamber #2 AP-1 130 100 Co-60 <0.1 pClgCi/g Additional Info SX CW4339 1-15030 Cs-137 3.9 pCi/g 0.5 p 11/26/03 0855 SS8-2 Seal Chamber #2 FP-1QC 128 100 Co-60 <0.1 pCi/g Additional Info SX CF 4340 5-15031 Cs-137 1.3 pCi/g 0.2 p 11/26/03 0915 SS8-3 Seal Chamber #3 FP-5 143 100 Co-60 <0.1 pCi/gCi/g Additional Info Tuesday, December 16,2003 Pae I of Page o1

/cle4 7- G

DCGL Calculation Logic-Seal Chamber Survey Unit: SNEC Seal Chamber

11.

Description:

The purpose of this calculation is to determine a representative isotopic mix for the three Seal Chambers from available sample analyses. The effective surface area and volumetric DCGLWs are then determined from the mean percent of applicable samples.

Ill. 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 Seal Chamber 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 Usting - This table provides the best overall representation of data selected and decayed from Table 1. In Table I 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 Pu-239 mean percent values were averaged using only samples 3 & 4. In addition, the mean percent value calculated from sample 1 for Sr-90 and sample 5 for Co-60 were not averaged throughout the spreadsheet, since these samples were the only ones where the respective nuclide was positive. This results in higher mean 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-137 for each radionudide. 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 Pu-239 ratios were averaged using only samples 3 & 4. In addition, the ratio values calculated from sample 1 for Sr-90 and sample 5 for Co-60 were not averaged throughout the spreadsheet, since these samples were the only ones where the respective nuclide was 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.

/g>CA M>+ /

Table 6: Effective DCGL Calculator for Cs-137 (dpm/100 cmA2) - This table provides the surface gross activity DCGLW calculation results from data derived from Table 4.

Table 7: Effective DCGL Calculator for Cs-1 37 (in pCUg) - This table provides the surrogate volumetric modified Cs-137 DCGLW calculation results from data derived from Table 5.

IV. Summary - Since the Seal Chambers are concrete structures the release limit is primarily based on the surface area DCGLW. However, some Seal Chamber concrete surfaces have volumetric contamination (before remediation). Therefore, a volumetric DCGLW Is also determined. Using the above data selection logic tables the calculated gross activity DCGLW for surface area is 7,650 dpm1O00 cm2 . The Cs-137 volumetric DCGLW is 3.19 pCVg. 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 J7 0CA*1 7 t -

TABLE 1 -Data Lisfing (pCUgJ Decay Date 1I1500M4 SNEC SampleDolI H4-3 Sr-90 Co40 Cs-13? Am-241 Pu-238 Pu-239 Pu-241 C-14 Ni-63 Eu-162 Analysis Date Elased (ci 3.58 0.2 0.01 1.05 0.032 0.015 015 2.22 0.115 7.59 0.04 November 9,2001 797 SX105D99034I i i 0.09 62 0.05 0.04 0.04 July 22, 1999 1638 0.6 1,9 0.3 Om05 Om.09 November 17, 1999 1520 SXSSD99258 11 SXSSD99IOO lllll I 1 0.3 43 0.02 0.401S 0,0071 November 17, 1999 1520 0.783 e Q.02i 0.373 44.1 t 04 0.0O4M 0l 117 2.83 0.143 0.354 0.141 December 10,2003 36 SX1I3CP00841 lIiilI1 l l :003 i 0.11 _______ 0.11 I March 29, 2001 1022

_0 54.6 _ 0.44 I March 29, 2001 1022 SX13CP00t N l lllI T 03 1 3.9 3I 1 r T 1 T T IIU80.10 March 29, 2001 1022 SXCF108 IIIIM I 11.9 0r 0.04 0.03 0.056 0.049 0.038 6.9 3.1 24.8 0.17 June 28, 2001 931 TABLE 2.Decayed UisUng (pCilg)

T112 T1Q T112 TIQ2 T1Q2 T112 T12 T1Q2 T112 T12 TIQ2 1 4485.27 1 10446.15 11925.232751 11019.5925 1 157861.05 132050.687518813847.751 5259.6 12092882.5136561.525 4967.4 l

ISNEC SampleNoI I H-3 Sr40O Co-4O Cs-137 Am-241 Pu-238 Pu-2319 Pu-241 C-14 l1i-63 Eu-152 Analysis Date l SXCF971 l 12EF0 l 1,9E.41 I7SM .OE+O0 3.2E.2 l E&Z 1.5E.02 l2.0E4o 1.IE(11 7.5E+00 l3.6E2 November 9,2001 e 5.OE.02 5.6E+01 15..2 3.9E42 41OE42 July 22,1999 ISXiSsD99207 _

3.5E01 117E+00 773. O0 4.8E4039.OE.03 _____ November17,1999 I I"tE41 3.9E+01 l 1l 1.5E.03 l .1E-03 ____l_ l November 17,1999 SXSD100OO 7,E410 2lE.02 T .7EiM1 4.AE.O1 44 1 4.UE.02 1E2 2.8E+00 l 1.;iE01 3.5E41 T1AE41 December10, 2003 SX13CP00541

___ LIE.02: 1.0E401I 9S02 I___l March 29,2001 SX13CP00644 1 l3. 1 5.I1+01 _____l 3E.1 March 29, 2001 I 1 2.1E.02 I 3.3EX+00 I1 I1 1 _ _ _ tOE41 March 29, 2001 ISXCF1098 1.03E-01 6511E4;l226E112 283E 02 T5.58E.02 I 4.80E-02 I 3.80E02 I 6.I0EO 3.1E00 2.44E401 I'4SE 1I June 28, 2001 KEY I IYellow Shaded Background = Positive Result Gray Shaded Background = MDA i 3

TABLE 3 - Decayed Listing of Positive Nuclides & MDAs Removed (pCilg)

SNEC Sample No Location/Description Sr-90 Co-60 Cs-137 Pu-239 Total (pCi~g)

_ SXCF971 0.190 0.999 1.188 2 SX5D9 1 5579331 4_ 39.080 0.007 39.087 0.368 44.000 44.368 6 SX13CPOO 0.103 0.103 7 SX13CPOO 51.201 51.201 8 SX13CP00644 3.273 3.273 TABLE 4 - Mean Percent of Total for Positive Nuclides SNEC Sample No LocationlDescri tion Sr-90 Co-60 Cs-137 Pu-239 Total l SXCF971 15.96% 84.04% 100.00%

2 SX10SD990034 e 100.00% 10000%

3 SX5SD99257 ____=___l_ 99.48% 0.52% 100.00%

4 SX55D99258 9998% 0.02% 100.00%

0.83% 99.17% 100.00%

6 SX13CP00641 1l0.00% 100.00%

7 SX13CP00643 ______ 100.00% _ 100.00%

8 SX13CP00644 100.00% T 100.00%

Mean= 1.60E-O I 8.30E-03 9.78E-01 2.68E-03 1.15 sigma=:l_l_ 0.056 0.004 l _l Mean ' of Total=l 13.89% 0.72% 85.15% 0.23% 100.00%

[ TABLE 6 - Ratio to Cs-I 37 for Positive Nuclides l SNEC Sample No I Sr-90 Co-60 Cs-1 37 Pu-239 Total I SXCF971 I 0.190 l _ l 1.000 l 1.19 2 SX10SD990034 I he l 1.000 l 1.00 3 SXSSD99257 I

• I 1.000 0.005 1.01 4 SX5SD99258 j 1.000 0.000 1.00 5 SXSDIOO 0.008 1.000 l 1.01 6 SX13CP00641 1.000 _ 1.00 7 SX13CPOO43 _I _ It_1.000 1 1.00 8 SX13CP00644 - l 1.000 l 1.00 1.90E-01 8.37E-03 1.OOE-00 2.70E-03 1.20 Sigma=* 0.000 0.004 Mean % of Total=* 15.82% 0.70% 83.26% 0.22% 100.00 4

r~ I

Table 6

_ Effective DCGL Calculator for Cs-137 (dpml100 cmA2) _ _ ___

- 7650 ]dpmIIOOcmA21 5737 JdpmlOO cmA2

._ 25.0 mremty TEDE Limit___ ___ __= _ l_l _l_l SAMPLE liOls)4Seal Chambers __ _ 6511 jdpmliOOcmA2 4883 Idpmt100cmA2

._ _ __ __________ __ _____ I 75 -I _ ..

Individual Sample Input Limits Allowed Beta dpml100 Alpha dpml1OO Isotope (PCl'g, uCI, etc.)  % of Total (dpmtlOO cmA2) dpml1OO cmA2 mremlyTEDE cm^2 cm^2 1 Am.241 0.000% 27 °° 0.00 0 0.00 Am-241 2 C-14 0.000% 3,700,000 0.00 0.00 0.00  :% C.14 3 Co-60 8.30E-03 0.722% 7,100 55.26 0.19 55.26 Co-60 W3- M t MM-04 W WM19% N-A , -01 bvss1120wf -~vAKMV^> ", P6511.-2M ...................................... C137 Z-(N 5 Eu-152 6 .- 3 0.000%

00 0 0

13,000 120,000,000 -. 000 0.00 0000 0.00 ..

0.00 ot Detectable .

Eu-152

.3-7 Nl.63 0.000% 1,800,000 0.00 0.00 flot Detectable  : NI-63 I 8 Pu-238 0.000% 30 0.00 0.00 .  :: 0.00 Pu.238 r',311 9 Pu.239 2,68E-03 0.233% 28 17.84 15.93 17.84 Pu.239 1i Pu-241 _ 0.000% 880 0.00 0.00 Hot Detectable  :: Pu-241 il Sr-90 1.60E; O i 13.925% 8,700 1065.23 3.06 1065.23 Sr-90 1)1.1 _ _ 100.000% 7650 25.0 7632 18 I Maximum Permissible 1/\ __ __ _dpmtl1O cmA2 .

5

Table 7 75'; I-OrrAr*W~w"UW ... ... I_. = .= t. "T.._9=I.

Effective DCGL .1.Calculator

... Ii for Cs-I37 (inpClg4 i _ _ __ _ _ __ _ _

1 3.83 IpCig 1 2.87 Ip g

.,P, I

- lrWWIttA

- -. - - - - - - -- I -- -- I- -'- I-SAMP~iiLE HUMElE(sp

~Scal Chambers

- 9 -. I--

I ______ ____ .L 31.39% 25.0 mremly TEDE Limit _

___I I 1 pcifg I 2.39 1pCilg

. . _i I = .

32.14% M4I mremy Drinkina Water (MW)Limit 7Chedcfor 25 wremly Sample Input (pClg.uCl,% 25 mremVy TEDE A - Allowed pCi'g for This Sample I Isotope of Total, etc.)  % of Total LImits (pCItg) 25 mremiy TEDE mremly TEDE Am.241 0 000% 9.9 0 co 0 00 003Am.241 C.14 0 000% 2.0 0 00 0 00 iC14 C Co-60 0.0084 0.697% 3.5 0.03 Cs.137? 1.0000 -83 259% 6.6 3.19 3 .79 CsCs 1307 Eu-152 0.000%

P 0000 i

-- -10.1 - -0 . Eu.152 H13.0 000% 132 0.00 0.00 j, H-3 0.000% 747 W000 .0.00 . M~~-63

k Pu-238 Pu.239 0.0027 _

0. 0 0.225%

1.8 1.6 0.00 001 0.00 Puu238 C11:5 0304 .Pu239 z Pu.241 0 000% 86 - 000 0.00 Pu8Pu 241

-i- Sr.90 0.1900 15.819% 1.2 0 61 3 96 5 r.90 1

1.20E+00 I 100.000% 3.83 7.848 1.286 Maximum PermIssible Maximum To Use ThIs Information, pCi1 l Permissible pCitg Sample Iput Units Mrust Be In (26 mremly) (4 mremfy) nCIa nof %of ,~~- ThtL. v.

. , . --- r-:

6

%JVJ Building Surface Survey Plan Survey Plan Summary Site: NEW SEAL CHAMBERS Planner(s): BHB Survey Unit Name: Seal Chamber 1 A Comments:

Area (M2 ): 73 Classification: 1 Selected Test: WRS Estimated Sigma (cpm): 34.5 DCGL (cpm): 578 Sample Size (N/2): 8 LBGR (cpm): 475 Estimated Conc. (cpm): -46 Alpha: 0.050 Estimated Power 1.00 Beta: 0.100 EMC Sample Size (N): 8 Prospective Power Curve A. _

r-_

_9 _=

cI_

iv _

E -

E _

-100 0 100 200 300 400 500 600 700 Net Beta (cpm)

Power - DCGL - - Estimated Power LBGR

• 1-beta COMPASS v1.0.0 614HE004 Page 1 ATTACHMENT I

Building Surface Survey Plan Contaminant Summary DCGLw Contaminant (dpm/1O cm')

Gross Activity 5,737 Beta Instrumentation Summary Gross Beta DCGLw (dpm/100 cm): 5,737 Total Efficiency: 0.08 Gross Beta DCGLw (cpm): 578 ID Type Mode Area (cm')

18 GFPC Beta 126 1

Contaminant Energy Fraction' Inst. Eff. Surf. Eff. Total Eff.

Gross Activity 187.87 1.0000 0.51 0.16 0.0831 Average beta energy (keV) [N/A indicates alpha emission]

2Activity fraction Gross Survey Unit Mean (cpm): 187 i 28 (1-sigma)

Count Time (min): 1 Number of Average Standard MDC Material BKG Counts (cpm) Deviation (cpm) (dpm/100 cm')

Concrete 31 233 34.5 734 COMPASS vixx. 6/412004 Page 2 ATT*ACHMENT

• ig IVU UICIMUWW *1PI* I *.

Elevoted Meosurement'Comparison tEM 1for Beta

• Fodow the orderof eadhtab belowto perform the EMC.

[1lJEntetSaewmi- Iun Ifcie .2)ErI&ScanMNDCPcets l .l .}VENCRSu2 Scan MDCRe9Quired per Contmrninant

.I , I Contaninant I DCGLw I AreaFactor I Scan MDCRequired I Gross Activity 5.737 1.99 11.417 9--

J Statistical )esign 4 Hot Spot Design N12: Fl8 Actual Scan MDC'. l1.442.

Bounded Area (mff: l 9.1 Area Fector I N/A.

Area Factor l 1.99 BoundedArea(rrn): l- NA

.DCGLw-. IK-737 Post-EMCMd2: F B Scon MDCRequired. 11.41?

(

im No akond sa&iles are reqed bause the aca

' dpm/1 00 crr 2 sani MDC isI than te DCGLw for each (ccrk F EnabliTrainins vi nn ATTACHMENT 3 _,-3 _

SEAL CHAMBER No. 1 JG1135 Instrument 126218 95080 SS8.1 FSS-407 BHB No. Location Date Time Detector Counts Count Time (sec) Mode Designator ShieWed Unshielded 2 SS8-1 FP1S 1113/2003 9:57 1 1.49E+02 60 SCL Shielded 1.49E+02 3 SS8-1 FP1U 11/3/2003 9:58 1 1.76E+02 60 SCL Unshielded B 1.76E+02 4 SS8-1 FP2S 11/3/2003 10:00 1 1.87E+02 60 SCL Shielded 1.87E+02 S SS8-1 FP2U 11/3/2003 10:01 1 1.84E+02 60 SCL Unshielded p 1.84E+02 6 SS8-1 FP3S 1113/2003 10:02 1 1.63E+02 60 SCL Shielded 1.63E+02 7 SS8-1 FP3U 11/31Z003 10:04 1 1.77E+02 60 SCL Unshielded 1.77E+02 8 SS8-1 FP4S 1113/2003 10:05 1 1.05E+02 60 SCL Shielded 1.05E+02 _

9 SS8-1 FP4U 11/3/2003 10:06 1 1.66E+02 60 SCL Unshielded _ 1.66E+02 10 SS8-1 FP5S 1113/2003 10:07 1 1.18E+02 60 SCL Shielded 1.18E+02 11 SS8-1 FP5U 11/3/2003 10:08 1 1.86E+02 60 SCL Unshielded 1.86E+02 12 SS8-1 FP6S 1113/2003 10t10 1 1.21E+02 60 SCL Shielded 1.21E+02 13 SS8-1 FP6U 111312003 10:11 1 2.59E+02 60 SCL Unshielded_ 2.59E+02 14 SS8-1 FP7S 111312003 10:12 1 1.08E+02 60 SCL Shielded 1.08E+02 15 SS8-1 FP7U 11/3/2003 10:13 1 1.89E+02 60 SCL Unshielded 1.89E+02 16 SS8-1 FP8S 1113/2003 10:14 1 1.35E+02 60 SCL Shielded 1.35E+02, 17 SS8-1 FP8U 11/3/2003 10:15 1 1.90E+02 60 SCL Unshielded 1.90E+02 18 SS8-1 FP9S 1113/2003 10:23 1 1.38E+02 60 SCL Shielded 1.38E+02 19 SS8-1 FP9U 11/3/2003 10:24 1 1.55E+02 60 SCL Unshielded 1.55E+02 20 SS8-1FP1OS 111312003 10:25 1 -1.03E+02 60 SCL Shielded 1.03E+02 21 SS8-1FP10U 1113/2003 10:26 1 2.05E+02 60 SCL Unshielded 2.05E+02 22 SS8-1FP11S 1113/2003 10:28 1 1.20E+02 60 SCL Shielded 1.20E+02 23 SS8-lFP11U 1113/2003 10:29 1 1.67E+02 60 SCL Unshielded 1.67E+02 24 SS8-1FP12S 11f3/2003 10:30 1 1.23E+02 60 SCL Shielded 1.23E+02 25 SS8-1FP12U 1113/2003 10:31 1 1.91 E+02 60 SCL Unshielded 1.91E+02 26 SS8-1FP13S 1113/2003 10:33 1 1.49E+02 60 SCL Shielded 1.49E+02 27 SSB-1FP13U 111312003 10:34 1 1.77E+02 60 SCL Unshielded 1.77E+02

.28 SS8-1FP14S 11/3/2003 10:35 1 1.22E+02 60 SCL Shielded 1.22E+02 29 SS8-1FP14U 1113/2003 10:36 1 1.54E+02 60 SCL Unshielded 1.54E+02 30 SS8-1FPItS 113l2003 10:38 1 1-34E+02 60 SCL Shielded 1.34E+02 31 SS8-1FP15U 11/3/2003 10:39 1 1.65E+02 60 SCL Unshielded 1.65E+02 32 SS81FP16S 111312003 10:40 1 1.53E+02 60 SCL Shielded 1.53E+02 33 SS8.1FP16U 11/3/2003 10:41 1 2.37E+02 60 SCL Unshielded 2.37E+02 34 SS8-1FP17S 1113/2003 10:43 1 1.78E+02 60 SCL Shielded 1.78E+02 35 SS8-1FP17U 1113/2003 10:44 1 1.74E+02 60 SCL Unshielded 1.74E+02 36 SS8-1FP18S 1113/2003 10:46 1 1.81E+02 60 SCL Shielded 1.81 E+02 _ I 37 SS8-1FP18U 11/3/2003 10:47 1 2.19E+02 60 SCL Unshielded B 2.1 92+02 Minimum = 1.03E+02 1.54E+02 Maximum = 1.87E+02 2.59E+02 Mean : 1.38E+02 1.87E+02 Sigma > 2.62E+01 2.77E+01 ATTACHMENT. 3L-

Williamsburg Concrete Background Measurements

.7122N21 Instrument 95348 RLM6220 Time -Doetector Counts Cout Timne (sec) Mode Deskjnator FSS-001 BHB

- -__.A j 0jSAA_

0 A- - -

UKUNU 114/2002 8:52 7.26L+03 1800 SCL Inital Background 1 1 Source Check 114/2002 9:07 1 1.79E.05 60 SCL Source j 2 BKGND 1/412002 10:05 2 4.40E+01 1800 SCL Inital Background a Concrete CF~cnm) = l 73 14 Source Check 11412002 10:39 2 1.51 E+05 60 SCL Source a Shielded Unshlelded 15 CON A1S 11412002 13:00 1 2.78E+02 60 SCL Shielded 2.78E+02 16 CONA1U 1/4/2002 13:02 1 3.88E+02 -60 SCL Unshielded _ 3.15E+02 17 CON A2S 1/4/2002 13:20 1 2.39E+02 60 SCL Shielded B 2.39E+02 18 CON A2U 11412002 13:21 1 2.22E+02 60 SCL Unshielded B 1.49E+02 19 CON A3S 114t2002 13:28 1 2.39E+02 60 SCL Shielded B 2.39E+02 20 CON A3U 1/412002 13:30 1 2.62E+02 60 SCIL Unshielded B i _ 1.89E+02 21 CON A4S 1/4/2002 13:36 1 2.45E+02 60 SCL Shielded 2.45E+02 22 CON A4U 1/412002 13:38 1 2.71E+02 60 SCL Unshielded B 1.98E+02 23 CON A5S 1/4/2002 13 58 1 2.00E+02 60 SCL Shielded B 2.10E+02 24 CON ASU 11412002 14:00 1 2.82E+02 60 SCL Unshielded B 2.UgE+02 25 CON A6S 1/4/2002 14:03 1 1.84E+02 60 SCL Shielded B 1.84E+02 26 CON A6U 1112002 14:05 1 3.10E+02 60 SCIL Unshielded B - 2.37E+02 27 CON A7S 1/4/2002 14:09 1 1.98E+02 60 SCL Shielded 1.98E+02 28 CON A7U 1/412002 14:10 1 3.15E+02 60 SCL Unshielded B 2.42E+02 29 CON A8S 1/412002 14:19 1 2.34E+02 60 SCL Shielded 2.34E+02 30 CON A8S 1/412002 14 22 1 2.31E+02 60 SCL Shielded 2.311E+02 31 CON ABU 11412002 14:24 1 2.88E+02 60 SCL Unshielded B 2.15E+02 32 CON A9S 114/2002 14:31 1 2.65E+02 60 SCL Shielded q0 2.65E+02 33 CON A9U 4412002 14:33 1 2.89E+02 60 SCL Unshielded A 2.16E+02 34 CON A10S 1/412002 14:42 1 2.46E+02 60 SCL Shielded B 2.46E+02 35 CON A1OU 1/412002 14:43 1 3.16E+02 60 SCIL Unshielded B 2.43E+02 36 CONAI1S 1/412002 15:10 1 1.95E+02 60 SCL Shielded _ 1.95E+02 37 CONA11U 1/4/2002 15:12 1 2.94E+02 -60 SCL Unshielded B 2.21E+02 38 CON A12S 1/4t2002 15:13 1 2.21E+02 60 SCL Shielded _ 2.21 E+02 39 CON A12U 1/4/2002 15:14 1 2.84E+02 60 SCL Unshielded A 2.11E+02 40 CON Al3S 114/2002 15:23 1 1.74E+02 60 SCL Shielded 1.74E+02 41 CON A13U 1/412002 15:24 1 2.94E+02 60 SCL Unshielded f 2.21E+02 42 CON A14S 1/412002 15:25 1 1.96E+02 60 SCL Shielded B 1.96E+02 43 CON A14U 11412002 15:26 1 3.33E+02 60 SCL Unshielded _ 2.60E+02

-44 CON A15S 1/412002 15:28 1 2.16E+02 -60 SCL Shielded _ 2.16E+02 45 CON A15U 1/412002 15:29 1 3.45E+02 60 SCL Unshielded _ 2.72E+02 46 CON A16S 1/4t2002 15:30 1 1.83E+02 60 SCL Shielded _ 1.83E+02

.47 CONA16U 1/412002 15:31 1 3.13E+02 60 SCL Unshielded 2.40E+02 48 CON A17S 1/4i2002 15:33 1 1.82E+02 60 SCL Shielded B 1.82E+02 49 CONA17U 1/4/2002 15:34 1 3.22E+02 60 SCL Unshielded B 2.49E+02 50 CON A18S 11412002 15:35 1 1.84E+02 60 SCL Shielded D 1.84E+02

-51 CON A18U 1/4/2002 15:36 1 3.24E+02 -60 SCL Unshlelded X 2.51E+02 52 CON A19S 1/412002 15:37 1 1.91E+02 60 SCL Shielded _ 1.91 E+02 53 CON A19U 1/412002 15:39 1 3.07E+02 60 SCL Unshielded B 2.34E+02 54 CON A20S 1/412002 15:40 1 1.94E+02 60 SCL Shielded 1.94E+02 55 CON A20U 1/412002 15:41 1 3.33E+02 60 SCL Unshielded B 2.60E+02 56 CON A21S 11412002 15:57 1 2.23E+02 60 SCL Shielded _ 2.23E+02 57 CON A21U 1/412002 15:58 1 2.92E+02 60 SCL Unshielded P 2.19E+02

-68 CON A22S 1/412002 15.59 1 1.72E+02 60 SCL -Shielded 3 1.72E+02 59 CON A22U 1/412002 16:00 1 2.80E+02 60 SCL Unshielded _ . 2.17E+02 60 CON A23S 1/412002 16:01 1 1.94E+02 60 SCL Shielded 1.94E+02 61 CON A23U 1/412002 16:02 1 3.29E+02 60 SCIL Unshielded 1 2.56E+02 62 CON A24S 1/412002 16:04

• 1 1.87E+02 60 SCL Shielded 1 1.87E+02 63 CON A24U 1/412002 16:05 1 3.48E+02 60 SCL Unshielded 0 2.75E+02 64 CON A25S 11412002 16:06 1 2.07E+02 60 SCL Shielded P 2.07E+02

-65 CON A25U 11412002 16.07 1 3.72E+02 -60 SCI. Unshielded _ _ 2.99E+02 66 CON A26S 1/412002 16:09 1 2.09E+02 60 SCL Shielded _ 2.09E+02 67 CON A26U 1/412002 16:10 1 3.26E+02 60 SCL Unshielded _ 2.53E+02 68 CON A27S 1/412002 16:11 1 2.07E+02 60 SCL Shielded B 2.07E+02 69 CON A27U 1/412002 16:12 1 3.30E+02 60 SCL Unshielded B 2.57E+02 70 CON A28S 1/412002 16:14 1 2.30E+02 60 SCL Shielded _ 2.30E+02 71 CON A28U 1/412002 16:15 1 3.06E+02 60 SCL Unshielded 0 2.33E+02 72 CON A29S 1/412002 16:20 1 2.13E+02 -60 SCL Shielded 0 2.13E202 73 CON A29U 1/412002 16:21 1 2.58E+02 60 SCL Unshielded _ 1.85E+02 74 CON A30S 1/412002 16 24 1 2.33E+02 60 SCL Shielded 2.33E+02 75 CON A30U 1/412002 16:25 1 2.89E+02 60 SCL Unshielded B 2.16E+02 76 CON A31S 1/412002 16:28 1 1.84E+02 60 SCL Shielded 1.84E+02 77 CON A31U 1/4/2002 16:29 1 2.63E+02 60 SCL Unshielded P 1.90E+02

- Source Check 1/412002 17:27 1 1.70E+05 60 SCL - P Minimum > 1.72E+02 1.49E+02

-Max~mum=- +/-2i7SE+02 -3LSE+02 Mean 2.11 E+02 2.33E+02 Siama = 2.69E+01 3.45E+01 ATTACHMENT ~ J~

'z3' Building Surface Survey Plan Survey Plan Summary Site: NEW SEAL CHAMBERS Planner(s): BHB Survey Unit Name: Seal Chamber 2 A Comments:

Area (m2 ): 71 Classification: 1 Selected Test: WRS Estimated Sigma (cpm): 57.8 DCGL (cpm): 578 Sample Size (N/2): 9 LBGR (cpm): 440 Estimated Conc. (cpm): 2 Alpha: 0.050 Estimated Power: 1.00 Beta: 0.100 EMC Sample Size (N): 9 Prospective Power Curve 09

, 0.9 A.

= 0.8 HI

- 0.7 F L L _ W _

t 0.6 C

__ I

: D _VI k* 0.5~

= 1 _-

--0.4 so

_-Hv E 0.3

=_ A _

e:,0.2 _ I I_-

E 0.1 AO I IIS -~

0 100 2010 300 400 Soo 600 700 Net Beta (cpm)

- Power - DCGL - - Estimated Power

- LBGR

• I-beta COMPASS v1.0.0 61412004 Page 1 ATTACHMENT--N.

Building Surface Survey Plan Contaminant Summary DCGLw Contaminant (dpm/100 cm')

Gross Activity 5,737 Beta Instrumentation Summary Gross Beta DCGLw (dpm/100 cm'): 5,737 Total Efficiency: 0.08 Gross Beta DCGLw (cpm): 578 ID Type Mode Area (cm')

18 GFPC Beta 126 Contaminant Energy' Fraction2 Inst. Eff. Surf. Eff. Total Eff.

Gross Activity 187.87 1.0000 0.51 0.16 0.0831 1Average beta energy (keV) [NMA indicates alpha emission]

2Activity fraction Gross Survey Unit Mean (cpm): 235 +/- 58 (1-sigma)

Count Time (min): 1 Number of Average Standard MDC Material BKG Counts (cpm) Deviation (cpm) (dpml100 cm')

Concrete 31 233 34.5 734 COMPASS v1.0.0 614/2004 Page 2 ATTACHMENT -7

I 1 PI = = I !1191;I

, T 7ME t TR~~7zI' -n,1 Elevated leasurement Comparison (EMC) for Beta I,.. Follow the order of each tab below to perform the EMC.

t 11)

Enter Scanning Instrument Efficiencief 21 Enter Scan MDC Parameters l 3)View EMC Results i.* ..

I I Scan MDC Required per Contaminant Contaminant DCGLw* I Area Factor Scan MDC Re uired l GrossActivity 5,737 2.31 13,252 I---.

.Statistical Design Hot Spot Design II N/2: [ 9 ActualScanMDO'.: l 1,442 Bounded Area(m): 1 7.9 AreaFactor. l[N/A Area Fector l 2.31 Bounded Area (m2): I NIA DCGLwl: l 5.737 Post-EMC N/2: F 9 Scan MDC Required*: l 13.252

• dpm/100 cm2 (j\ .No additional samples aie required because the actual W scan MDC is'less than the DCGLw for each contaminant.

i tII 49 .,& 17 Enable Traininc I I I VI.U.U A1TACHME ENLA-  ;

- SEAL CHAMBER No. 2 BNW7 Instrumentlt26179 94819 SS8-2 FSS-409 BHB No. Location Date Time Detector Counts CountTime(sec) Mode Designator Shielded Unshielded 4 SS8-2FP2S 1113/2003 10.02 1 1.38E+02 60 SCL Shielded 1.38E+02 5 SS8-2FP2U 111312003 10:03 1 2.09E+02 60 SCL Unshielded _ 2.09E+02 6 SS8-2FP3S 11N2003 10:06 1 1.18E+02 60 SCL Shielded 1.18E+02 7 SS8-2FP3U 111312003 10:07 1 2.27E+02 60 SCL Unshielded 11_ 2.27E+02 8 SS8-2FP4S 111312003 10:09 1 1.15E+02 60 SCL Shielded 1.15E+02 9 SS8-2FP4U 111312003 10:10 1 3.06E+02 60 SCL Unshielded aI 3.06E+02 10 SS8-2FP5S 111312003 10.11 1 1.18E+02 60 SCL Shielded _1.18£+02 11 SS8-2FP5U 111312003 10:13 1 2.53E+02 60 SCL Unshielded _ 2.53E+02 12 SS8-2FP6S 113/O03 10:15 1 1.19E+02 60 SCL Shielded 1.19E+02 13 SS8-2FP6U 1113/2003 10:16 1 2.24E+02 '60 SCL Unshielded _ 2.24E+02 14 SS8-2FP7S 1113/2003 10:18 1 1.30E+02 60 SCL Shielded 1.30E+02 15 SS8-2FP7U 11312003 10:19 1 3.97E+02 60 SCL Unshielded _ 3.97E+02 16 SS8-2FP8S 11/312003 10:22 1 1.48E+02 60 SCL Shielded 1.48E+02 17 SS8-2FP8U 11/3/2003 10:23 1 3.12E+02 60 SCL Unshielded _ 3.12E+02 18 SS8-2FP9S 1113/2003 10:25 1 1.42E+02 60 SCL Shielded _ 1.42E+02 19 SS8-2FP9U 111312003 10.26 1 2.70E+02 60 SCL Unshielded __1 2.70E+02 20 SS8-2FP10S 1113/2003 10:28 1 1.04E+02 60 SCL Shielded _ 1.04E+02 21 SS8-2FP10U 111312003 10:29 1 1.32E+02 60 SCL Unshielded of 1.32E+02 22 SS8-2FPI1S 111312003 10:31 1 1.32E+02 60 SCL Shielded _ 1.32E+02 23 SS8-2FP11U 111312003 10:33 1 2.91E+02 60 SCL Unshielded D 2.91E+02 24 SS8-2FP12S 111312003 10:34 1 1.63E+02 60 SCL Shielded 1.63E+02 25 SS8-2FP12U 1132003 10:36 1 1.90E+02 60 SCL Unshielded _ 1.90E+02 26 SS8-2FP13S 111312003 10:38 1 1.61E+02 60 SCL Shielded A 1.61E+02 27 SS8-2FP13U 1113/2003 10:39 1 1.98E+02 60 SCL Unshielded _ 1.98E+02 28 SS8-2FP14S 1113/2003 10:42 1 1.64E+02 60 SCL Shielded P 1.64E+02 29 SS8-2FP14U 1113/2003 10:43 1 1.87E+02 60 SCL Unshielded DI 1.87E+02 30 SS8-2FP15S 111/3/2003 10:48 1 1.74E+02 60 SCL Shielded I 1.74E+02 31 SS8-2FP15U 1113/2003 10.50 1 3.20E+02 60 SCL Unshielded _ 3.20E+02 32 SS8-2FP16S 1113/2003 10:52 1 1.41E+02 60 SCL Shielded 1.41E+02 33 SS8-2FP16U 11f312003 10:53 1 1.71E+02 60 SCL Unshielded B 1.71E+02 34 SS8-2FP17S 1113/2003 10:55 1 1.69E+02 60 SCL Shielded 1.69E+02

.35 SS8-2FP17U 1113/2003 10:56 1 2.16E+02 60 SCL Unshielded 2.16E+02 Mhhinmln i.04E+02 l.I32E+02 Maxlmumzj 1.74E+021 3.97E+02

-Moan 8I .14E+021 2A4E+02 Slgma=l 2.18E+01 6.81E+01 ATrACHMENTL-3 -.. 2

SEAL CHAMBER No. 2 1N8487 Instrument 126179 94819 7SS8-2 FSS-409 BHB No. Location Date Time Detector Counts Count Time (sec) Mode Designator Shielded Unshielded 4 SS8-2FP2S 1113/2003 10:02 1 1.38E+02 60 SCL Shielded 1.38E+021 5 SS8-2FP2U 11/3/2003 10:03 1 2.09E+02 60 SCL Unshielded_ 2.09E+02 6 SS8-2FP3S 111312003 10:06 1 1.1BE+02 60 SCL Shielded 1.18E+02 7 ;SS8-2FP3U 111312003 10:07 1 2.27E+02 60 SCL Unshielded 2.27E+02 8 SS8-2FP4S 11t3/2003 10:09 1 1.15E+02 60 SCL Shielded 1.15E+02

.9 SS8-2FP4U 111312003 10:10 1 3.06E+02 60 SCL Unshielded 3.06E+02 10 SS8-2FP5S 11t3/2003 10:11 1 1.18E+02 60 SCL Shielded 1.18E+02_

11 SS8-2FP5U 11/3/2003 10:13 1 2.53E+02 60 SCL Unshielded_ 2.53E+02 12 SS8-2FP6S 11/3/2003 10:15 1 1.19E+02 60 SCL Shielded 1.19E+02 X 13 SS8-2FP6U 11/3/2003 10:16 1 2.24E+02 60 SCL Unshielded S 2.24E+02 14 SS8-2FP7S 11/3/2003 10:18 1 1.30E+02 60 SCL Shielded 1 .30E+02 15 SS8-2FP7U 11/3/2003 10:19 1 3.97E+02 60 SCL Unshielded p 3.97E+02 16 SS8-2FPES 113/2003 10:22 1 1.48E+02 60 SCL Shielded 1.48E+02 17 SS8-2FP8U 11/3/2003 10:23 1 3.12E+02 60 SCL Unshielded_ 3.12E+02 18 SS8-2FP9S 11/3/2003 10:25 1 1.42E+02 60 SCL Shielded 1.42E+02 19 SS8-2FP9U 11/3/2003 10:26 1 2.70E+02 60 SCL Unshielded 2.70E+02 20 SS8-2FP10S 11/3/2003 10:28 1 1.04E+02 60 SCL Shielded 1.04E+02 21 SS8-2FP1OU 111/3/2003 10:29 1 1.32E+02 60 SCL Unshielded p 1.32E+02 22 SS8-2FP11S 1113/2003 10:31 1 1.32E+02 -60 SCL Shielded 1.32E+02 23 SS8-2FP1IU 11/3/2003 10:33 1 2.91E+02 60 SCL Unshielded p 2.91 E+02 24 SS8-2FP12S 11t3/2003 10:34 1 1.63E+02 60 SCL Shielded 1.63E+02 25 SS8-2FP12U 11/3/2003 10:36 1 1.90E+02 60 SCL Unshielded 1.90E+02 26 SS8-2FP13S 11/3/2003 10:38 1 1.61E+02 -60 SCL Shielded 1.61E+02 27 SS8-2FP13U 1113/2003 10:39 1 1.98E+02 60 SCL Unshielded- 1.98E+02 28 SS8-2FP14S 1113/2003 10:42 1 1.64E+02 60 SCL Shielded 1.64E+02 29 SS8-2FP14U 1113/20u3 10:43 1 1.87E+02 60 SCL Unshielded T3 1.87E+02 30 SS8-2FP15S 11/3/2003 10:48 1 1.74E+02 60 SCL Shielded 1.74E+02 31 SS8-2FP15U 1113/2003 10.50 1 3.20E+02 60 SCL Unshielded 3.20E+02

.32 SS8-2FP16S .11/2003 10:52 1 1.41E+02 60 SCL Shielded 1.41E+02 33 SS8-2FP16U 1113/2003 10:53 1 1.71E+02 60 SCL Unshielded 1.71E+02 34 SS8-2FP17S 1113/2003 10:55 1 1.69E+02 60 SCL Shielded 1.69E+02 35 SS8-2FP17U 1113/2003 10:56 1 2.16E+02 60 SCL Unshielded 2.16E+02 36 2-FP1 12/9/2003 - 1 1.73E+02 60 SCL Shielded 1.73E+02 37 2-FP1 1219/2003 - 1 2.63E+02 60 SCL Unshielded 2.63E+02 38 2-FP2 12/9/2003 - 1 1.40E+02 60 SCL Shielded 1.40E+02 39 2-FP2 12/9/2003 - 1 2.28E+02 60 SCL Unshielded 2.28E+02 40 2-FP3 12/9/2003 - 1 1.21E+02 60 SCL Shielded 1.21 E+02 41 2-FP3 12/9/2003 - 1 2.34E+02 60 SCL Unshielded 2.34E+02 42 2-FP4 12/9/2003 - 1 1.61 E+02 60 SCL Shielded 1.61 E+02 43 '2-FP4 12/9/2003 - 1 1.95E+02 60 SCL Unshielded 1.95E+02 44 2-FP5 12/9Q2003 - 1 1.42E+02 60 SCL Shielded 1.42E+02 45 2-FP5 '12/912003 -. I 2.10E+02 60 SCL -Unshielded

• 2.10E+02 46 2-FP6 12/9/2003 - 1 1.30E+02 60 SCL Shielded 1.30E+02 47 2-FP6 12/9/2003 - 1 2.57E+02 60 *SCL Unshielded 2.57E+02 48 2-FP7 1219/2003 - 1 1.03E+02 60 SCL Shielded 1.03E+02

-49 2-FP7 12/9/2003 - 1 2.07E+02 60 SCL Urnshielded - . 2.07E+02 50 2-FP8 12/9/2003 - 1 1.26E+02 60 SCL Shielded 1.26E+02 61 2-FP8 12/9/2003 - 1 -1.94E+02 60 SCL *Unshielded . 1.94E+02

_~~~~~~~~~~C e __.

_ _A

_AA9_e AA 52 2LFP9 12M72003 - 1 1.25EE+V2 60 SCL Shielded F 1.25E+02 53 2-FPa 12193 - I .,7.6E+02 60 .SCL U Jnshielded 1.76E+02

.. finkwm. 1.03E+02 1-32E+02 Maximum = 1.74E+02 3.97E+02 Mean = 1.38E+02 2.35E+02 Sigma =,j 2.12E+01 5.78E+01 ATTACHMENT---,? - /O

N-p Building Surface Survey Plan Survey Plan Summary Site: NEW SEAL CHAMBERS Planner(s): BHB Survey Unit Name: Seal Chamber 3 A Comments: Concrete Area (m2 ): 85 Classification: I Selected Test: WRS Estimated Sigma (cpm): 34.5 DCGL (cpm): 578 Sample Size (N/2): 9 LBGR (cpm): 490 Estimated Conc. (cpm): 21 Alpha: 0.050 Estimated Power. 1.00 Beta: 0.100 EMC Sample Size (N): 9 Prospective Power Curve

- 1 V.. I I I CA

.I II :1 C 0.9 I,_

I- T _

TIllT1

_ T_ __ I_ I-_I IT C .

0.5 .I I t

_ 0.4 I-I

- 0.3 .  : I t0.2

.I

.O I - __I__ _

= 0.1 . i=-

. ... i I 0 100 2010 300 400 500 600 700 Net Beta (cpm)

- Power - DCGL - - Estimated Power

- LBGR

• 1-beta COMPASS v1.0.0 61412004 Page 1 ATTACHMENT A - 11

Building Surface Survey Plan Contaminant Summary DCGLw Contaminant (dpm/100 cm')

Gross Activity 5.737 Beta Instrumentation Summary Gross Beta DCGLw (dpm/100 cm'): 5,737 Total Efficiency: 0.08 Gross Beta DCGLw (cpm): 578 ID Type Mode Area (cm2) 18 GFPC Beta 126 Contaminant Energy' Fraction' Inst Eff. Surf. Eff. Total Eff.

Gross Activity 187.87 1.0000 0.51 0.16 0.0831 Average beta energy (keV) [NIA indicates alpha emission]

' Activity fraction

• Gross Survey Unit Mean (cpm): 254* 27 (1-sigma)

Count Time (min): I Number of Average Standard MDC Materi lal BKG Counts (cpm) Deviation (cpm) (dpm/100 cm2)

Concrf ete 31 233 34.5 734 COMPASS v1.0.0 614/2004 Page 2 ATTACHMENT 3 L& A

• fl* A r-WWOc 92_"-77, .. t2. t.t.-iX

- ... ... ..- 1,- ,.-,2 I Ap I - -

'i4 -L'T= lg.'., - ILI XI P_

Elevated Measurement Comp~ison (EMC) for Beta

,~. Followthe order-of each tab belowto perform the EMC.

1)Enter Scanning Instrument Efficiencie{ 2] Enter Scan MDC Parameters 3) View EMC Results Scan MDC Required per Contaminant Contaminant l DCGLW* I Area Factor Scan MDC Required* I Gross Activity 5,737 1.97 11.302 I .

Statistical Design. Hot Spot Design N/2: l T Actual Scan MDC.: l 1.442 BoundedArea(m2): l 9.4 AreaFactor I N/A Area-Factor l 1.97 BoundedArea(ml): I N/A DCGLw'*. 1 5.737 Post-EMC N12: l 9 Scan MDC Required*: l 11.302 I _3VMl L .

• dpm/1 00 cm2 No additional samples are required because the actual scan MDC is less than the DCGLw for each contaminant WoEnable Traininc Ir.-.- 1 vl.0.O ATTACHMENT3. -

• 1J

SEAL CHAMBER No. 3 CONCRETE BB7173 Instrument'126188 SS8-3 SS8-3 FSS-395 BHB Nn I roation Date Time Detector Counts Count Time (sec) Mode Designator Shielded Unshielded 2 SS8-3 FP1S 10129/2003 8:38 1 1.53E+02 60 SCL Shielded 1.53E+02_

3 SS8-3 FPIS 10/2912003 8:40 1 2.47E+02 60 SCL Unshielded 2.47E+02 4 SS8-3 FP2S 10/29/2003 8:42 1 1.67E+02 -60 SCL Shielded 1.67E+02 5 SS8-3 FP2S 10129/2003 8:43 1 2.43E+02 60 SCL Unshielded 2.43E+02 5 SS8-3 FP3S 10129/2003 0:46 1 1.98E+02 60 SCL Shielded 1.98E+02 7 SS8-3 FP3S 10/2912003 8:47 1 2.36E+02 60 SCL Unshielded 2.36E+02 SS8-3 FP4SE 101291203 8:49 1 1.73E+02 60 SCL Shielded 1.73E+02 9 SS8-3 FP4S 10/29/2003 8:50 1 2.28E+02 60 SCL Unshielded 2.28E+02 10 SSB-3 FP5S 10/2912003 8:51 1 1.96E+02 60 SCL Shielded 1.96E+02 _

11 SS8-3 FP5S 10/29/2003 8:52 1 2.53E+02 60 SCL Unshielded 2.53E+02 12 SS8-3FP6S 10/2912003 0:55 1 2.15E+02 60 SCL Shielded 2.15E+02 13 SS8-3 FP6S 10129/2003 8:56 1 2.95E+02 60 SCL Unshielded 2.95E+02 14 SS8-3 FP7S 10/29/2003 8:58 1 1.87E+02 60 SCL Shielded 1.87E+02 15 SS8-3 FP7S 10/2912003 8:59 1 2.20E+02 60 SCL Unshielded 2.20E+02 16 SS8-3 FP8S 1012912003 9:01 1 1.71 E+02 60 SCL Shielded 1.71E+02 17 SS8-3 FP8S 10/2912003 9:02 1 2.41E+02 60 SCL Unshielded 2.41 E+02 18 SS8-3 FP9S 10129/2003 9:04 1 1.82E+02 60 SCL Shielded 1.82E+02 19 SS8-3 FP9S 1012912003 9:05 1 2.55E+02 60 SCL Unshielded 1 2.55E+02 20 SS8-3 FP1OS 1012912003 9:48 1 1.71E+02 60 SCL Shielded 1.71E+02 21 SS8-3FPIOS 10/29/2003 9:49 1 2.23E+02 60 SCL Unshielded 2.23E+02 22 SS8-3 FP11S 1012912003 9:51 1 2.04E+02 60 SCL Shielded 2.04E+02 23 SS8-3FPIIS 101912003 9:52 1 2-65E+02 60 SCL Unshielded 2.65E+02 24 SS8-3 FP12S 10/29/2003 9:53 1 1.84E+02 60 SCL Shielded 1.84E+02 25 SS8-3 FP12S 1012912003 9:55 1 2.13E+02 60 SCIL Unshielded 2.13E+02 26 SS8-3 FP13S 10/29/2003 9:56 1 2.07E+02 60 SCL Shielded 2.07E+02

. 27 SS8-3FP13S 1`129)2003 -9:58 1 2.56E+02 60 SCL Unshielded 2.56E+02 28 SS8-3 FP14S 10129/2003 9:59 1 2.11E+02 60 SCL Shielded 2.11 E+02 29 SS8-3 FP14S 1012912003 10:00 1 2.56E+02 60 -SCL inshielded 2.56E+02 30 S8-3 FP15S 10129/2003 10:02 1 2.24E+02 60 SCL Shielded 2.24E+02 31 SS8-3fP15S 1012912003 10:03 1 2.-78E+02 60 SCL Urtshielded p 2.78E+02 40 SS8-3FP20S 1012912003 10:21 1 2.30E+02 60 SCL Shielded 2.30E+02

. 41 SS8-3FP20S 10/2912003 10:22 1 .2.68E+02 60 5SCL Unshielded 2.68E+02 42 SS8-3 FP21S 10129/2003 10:25 1 2.14E+02 60 SCL Shielded 2.14E+02 _ __

43 SSS-3 FP21S 10/29/2003 10:27 1 2.95E+02 60 SCL Unshielded 2.95E+02 44 SS8-3 FP22S 1012912003 10:30 1 2.35E+02 60 SCL Shielded 2.35E+02_

45 SS8-3 FP22S 10129/2003 10:31 1 2.87E+02 60 SCL Unshielded 2.87E+02 46 SS8-3 FP23S 10129/2003 10:34 1 1.92E+02 60 SCL Shielded 1.92E+02 47 SSB-3 FP23S 1012912003 10:35 1 2.20E+02 60 SCL Unshielded 2.20E+02 48 5S8-3 FP24S 1012912003 10:37 1 2.24E+02 60 SCL Shielded 2.24E+02 60 SCL Unshieldedp 3.04E+02 f1.53E+

49 SS8-3 FP24S 102912003 10:39 1 3.04E+02 Minimum > 2.13E+02 "MaxImumr 2.35E+02 3.04E+02 Mean > 1.97E+02 2.54E+02

-slmm -a> 2.32E+01 2.73E+01 ATTACHM" ENN.- L..-(iY -

LV& Building Surface Survey Plan Survey Plan Summary Site: NEW SEAL CHAMBERS Planner(s): BHB Survey Unit Name: Seal Chamber Steel Comments:

Area (m2 ): 24 Classification: 1 Selected Test: WRS Estimated Sigma (cpm): 17.7 DCGL (cpm): 578 Sample Size (N/2): 8 LBGR (cpm): 525 Estimated Conc. (cpm): -5.9 Alpha: 0.050 Estimated Power 1.00 Beta: 0.100 EMC Sample Size (N): 8 Prospective Power Curve

-9; . I _ _

4-0.81I I

-9II Ca C,

-0_41 n- I _

I r-

-4 _ _

P.

-1 3-I_____

00 0 100 200 300 400 s00 600 Net Beta (cpm)

- Power - DCGL - Estunated Power

- L8GR

• 1-beta COMPASS v1.0.0 61412004 Page 1 ATTACHMENT 3, ____

Building Surface Survey Plan Contaminant Summary DCGLw Contaminant (dpml100 cm")

Gross Activity 5,737 Beta Instrumentation Summary Gross Beta DCGLw (dpm/100 cm2): 5,737 Total Efficiency: 0.08 Gross Beta DCGLw (cpm): 578 ID Type Mode Area (cm')

18 GFPC Beta 126 Contaminant Energy' Fraction' Inst. Eff. Surf. Eff. Total Eff.

Gross Activity 187.87 1.0000 0.51 0.16 0.0831

' Average beta energy (keV) [N/A Indicates alpha emission]

Activity fraction Gross Survey Unit Mean (cpm): 158 t 11 (1-sigma)

Count Time (min): 1 Number of Average Standard MDC Material BKG Counts (cpm) Deviation (cpm) (dpml100 cm')

Steel 37 163.9 17.7 620 COMPASS v1.0.0 61412004 Page 2 ATTACHMENT 3N_/6_

Rif  ! 1 Elevated Measurement Comparison (EMC) for Beta Followthe orderof each tab belowto perform the EMC.,

.11 Enter Scanning Instrument EIficiencief 2)Enter Scan MDC Parameters 3) View EMC Results

. . j

• ; i Scan MDC Required per Contamine ant f JI II Contaminant I DCGLw l Area Factor I Scan MDC Required l Gross Actiity 5,737 5.63 32.299

- r .^

• ,i EI Statistical Design Hot Spot Design

!rI fl Actual Scan MDC 1 : l 1.210 NJ2:

Bounded Area (mr): j 3.0 Area Factor: l N/A Area Factor. l 5.63 Bounded Area (m2): l N/A DCGLw*: l 5,737 Post-EMC N/2: l 8

. # Scan MDC Required*:' l 32.299 ~~[ I s i

• dpmJ1 00 cm2 No additional samples are required because the actual scan MDC isless than the DCGLw for each contaminanL F Enable Traininc vl.0.0 [ZPK ATTACHWEENT 3 -_7

SEAL CHAMBER-No. 3 STEEL 887173 Instrument126188 SS843 SS843 FSS-395 BH8 No. Location Date Time Detector Counts CountTime(sec) Mode Designator Shielded Unshlelded 32 SS8-3 FP16S 10/29/2003 10:04 1 1.58E+02 60 SCL Shielded _ 1.58E+02 33 SS8-3 FP16S 1012912003 10:06 1 1.64E+02 60 SCL Unshielded B_ 1.64E+02 34 SS8-3 FPi7S 10/29/2003 10:08 1 1.47E+02 60 SCL Shielded B 1.47E+02 -_ -

35 SS8-3 FP17S 10/29/2003 10:10 1 1.53E+02 60 SCL Unshielded Bp 1.53E+02 36 SS8-3 FPtBS 10/29/2003 10:13 1 1.61E+02 60 SCL Shielded [ 1.61E+02 _

37 SS8-3 FP18S 10/29/2003 10:14 1 1.70E+02 60 SCL Unshielded B t.70E+02 38 SS8-3 FP19S 10/29/2003 10:16 1 1.44E+02 60 SCL Shielded B 1.44E+02 39 SS8-3 FP19S 10t29/2003 10:17 1 1.46E+02 60 SCL Unshielded _ 1.46E+02 Minimum = 1.44E+02 1.46E+02 Maximumr= 1.61E+02 1.70E+02 Mean = 1.53E+02 1.58E+02 Sigma =j 8.27E+00 1.08E+01 ATTACHMENT 3- Z

Wllllamsburc Steel Backo~rcund Measurements SR-48 37122N21 Instrunment 95348 RRJR9291 Time Detector Counts Count Time (sc) Mode Designator FSS-004 BHB V N 11I14izUUz 0:41 1 v.D4t:uj lowJ bUL rutal Bacsgrouno p ai5 cirfcpmjf 1 47 U Source Check I1I/1442002 V.54 I 1.TorE.05 60 SCL Source B Shielded Unshielded 2 STEELAIS 11/14/2002 10:32 1 2.13E-02 60 SCL Stuelded 2.13E+02 _

3 STEELAIU 11/14r2002 10:33 1 2.04E.02 60 SCL Unshelded 2E I 1.57E+02 4 STEELA2S 1111412002 10:37 1 2.03E402 60 SCL Shielded O I 2.03E+02 I I -

5 STEELA2U t11/412002 10:38 1 225E-02 60 SCL Unshkelded O 1.78E+02 6 STEELA3S 11/1442OO2 10:39 1 1.85E-02 60 SCL Shielded O 1.85E+02 7 STEELAWU 11/1412002 10:40 1 2.09E+02 60 SCL Unshielded 6 . .62E502 8 STEELA4S 11/1412002 10:42 1 2.03E+02 60 SCL Shielded 2.03E+02 S STEELA4U 1I1/4I2002 10:43 1 1.67E-02 60 SCL Unshielded O I .20E+02 10 STEELASS 11t1412002 10:44 1 1.55E02 60 SCL Shielded i 1.55E502 11 STEELA5U 11/1442002 10:45 1 2.26E.02 60 SCL Unshielded LI 1.79E+02 12 STEELA6S 1111412002 10:46 1 192E.02 60 SCL Shielded O 1.92E+02 1S STEELA6U 1111442002 10:47 1 1.95E+02 60 SCL Unshielded O 1.45E+02 14 STEELA7S 11/14/2002 10:48 1 1.96E-02 60 SCL Shielded _ 1.96E+02 15 STEELA7U 1I14142002 10:50 1 2.01E+02 60 SCL Unshieded L 1.54E+02 16 STEELASS 11142002 10:51 1 2.15E+02 60 SCL Shielded 2.15E+02 17 STEELA8U 1111412002 10:52 1 2.38E.02 60 SCL Unshielded L 1.91:E+02 18 STEELAgS 11/1442002 10:53 1 2.00E+02 60 SCL Shielded 2.OOE+02 19 STEELA9U 11/144202 10:54 1 1.92E.02 60 SCL Unshielded 1.85E+02

.20 STEEIAIS 1141442002 1to:5 1 1.83E+02 60 SCL Shiekded 1.83E+02 21 STEELAIQU 1J14202 10:57 1 2.25E+02 60 SCL Unshielded L 1.71E+02 22 STEELA11S 1111442002 10:58 1 1.95E+02 60 SCL Shielded 1.95E+02 23 STEELA1IU t11/142002 10:59 1 2.ISE.02 60 5CL Unshielded 1t.eE+02 24 STEELA12S 11/1442002 1100 1 1.77E+02 60 SCL Shelded 1.77E+02 25 STEELA12U 11)142002 11:01 1 2.34E.02 60 SCL Unshielded L 1.87E+02 26 STEELA13S 11t1442002 11:03 1 2-02E+02 60 SCL Shielded 2.02E+02 27 STEELA13U 11/1412002 1105 1 2.t8E+02 60 SCL Unshielded L 1.71E.02 28 STEELA14S 11/1412002 11:06 1 1289E+02 60 SCL Shielded 1.89E+02 29 STEELA14U 11/1442002 11:07 1 1.99E+02 60 SCL Unshielded 30 STEELA1SS 11t1442002 11:08 1 2.16E+02 60 SCL Shielded 2.16E+02 31 STEELA1SU 1111442002 11:09 1 2.15E+02 60 SCL Unshielded L 32 STEELAt8S 11/1442002 11:10 1 1.88E+02 60 SCL Shielded 1.88E+02 33 STEELA16U 11/1442002 11:11 1 2.05E+02 60 SCL Unshielded L 1.58E+02 34 STEELAI7S 11)14/2002 11:13 1 2.12E+02 60 SCL -Shielded 2.12E+02 35 STEELA17U 11/1412002 11:14 1 2.11E+02 60 SCL Unshieided L 1.64F+02 1A68E+02 36 STEELA18S 11/14420 11:15 1 2.00E02 60 SCL Shielded 2.00E+02

• 37 S=EELA18U 11/1442002 11:16 1 1.93E+02 60 SCL Unshielded L 1.455402 38 STEELA19S 11/1412002 11:17 1 1.84E+02 60 SCL Shielded 1.84E+02 39 STEELAt9U 11/1412002 11:18 1 2.09E502 60 SCL Unshielded L 1.625+02 40 STEELA20S 111/412002 11:19 1 1.94E+02 60 SCL Shieded 1.94E+02 41 STEELA20U 11/1442002 1t120 1 2.30E+02 6o SCL Unshielded LI 1.83E+02 42 STEELA21S 1141442002 11:22 1 .2.IE n2 60 SCL Shielded 2.1OE+02 43 STEELA21U 11t1442002 1123 1 1.93E+02 60 SCL Unshielded L I .46E+02 44 STEELA22S 11/1442002 11t24 1 2.05E+02 60 SCL Shielded 2.05E+02

-45 STEELA22U 11414/2002 11t25 1 19.GE+02 60 SCL Unshkielded 1444-02 46 STEELA23S 11/1412002 1126 1 1.77E+02 60 SCL Shielded 1.77E+02 47 STEELA23U 11/1442002 1127 1 1.98E+02 60 SCL Unshielded L 1.51 E+02 48 STSELA24S 11/1442002 1128 1 t.88E-02 60 SCL Shielded 1.88E+02 49 STEELA24U 11/1442002 11t30 1 2.44E502 60 SCL Unshieided LI 1.97E+02 50 STEELOCItS 11/1442002 11:33 1 2.13E+02 - 60 SCL Shielded 2.13E+02 51 STEELOC1U 11/1442002 11:34 1 2.1OE+02 60 SCL Unshielded 1.63E+02 52 STEELQC19S 11/1442002 11:38 1 1.80E+02 60 SCL Shielded 1.80E+02 53 STEELOC19U 1111442D02 1137 1 1.99E+02 60 SCL Unshielded 1.52E+02 STEELBIS 1t11442002 13:09 1 2s25+E02 60 SCL Shielded 2.25E.02 59 STEEL8tU 11/1442002 13:10 1 1.94E502 60 SCL Unshbided L 1.47E502 60 STEELB2S 11/14/2002 13:12 1 1.78E+02 60 SCL Shielded 1.785402 f1 6TEELB2U 11114/2002 13:13 1 2.50E+02 60 SuL Unshielded L 2.03E+02 62 STEELB3S 11/14/2002 13:14 1 2.03E+02 60 SCL Shielded 2.03E+02 63 STEELB3U 11/14/2002 13:15 1 2.I1E+02 60 SCL Unshielded L 1.8S4E+02 64 STEELB4S 11/1412002 13:17 1 2.03E+02 60 SCL Shielded 2.03E+02 65 STEELB4U 11/14/2002 13:18 1 1.78E+02 60 SCL Unshielded L 1.315E+02 68 STEELBSS 11114/2002 13:19 1 2.32E+02 60 SCL Shieded 2.32E+02 87 STEELBSU 11/14/2002 1320 1 2.08E+02 60 SCL Unshbieded L 1 .61E502 e8 STEELB6S 11/1442002 1322 1 2.22E+02 60 SCL Shielded l ~222E+O=

69 STEELB6U 11/14/2002 13:23 1 222E502 60 SCL Unshielded L 1.75E+02 70 STEELB7S 11/14/2002 1324 1 2.21E-02 60 SCL Shielded 2.21E+02 71- STEELB7U 1111442002 13:25 1 2.18E+02 60 SCL Unshielded L 1.71 E+02 72 STEEL48S 11/14/2002 13:26 1 2.18E+02 60 SCL Shielded 2.18E402 73 STEEL88U 11/1412002 13:28 1 2.15E+02 60 SCL Unshielded L 1.68E+02 74 STEEL49S 11`14/2002 13:29 1 1.90E+02 60 SCL Shielded 1.90E+02 75 STEEL9U 11/14202 13:30 1 2.17E+02 60 SCL Unshielded 1 1.70E+02 76 STEELBIOS 11114/2002 13:41 1 245E+02 60 SCL Shielded 2.45E+02 77 STEELB1OU 11/1412002 13:42 1 2.32E+02 60 SCL Unshielded LI I 1.85E+02 78 STEELOC85S 11114/2002 13:44 1 1.81E+02 60 SCL Shielded 1.81 E+02 79 STEELOCBSU 11/14/2002 13:45 1 2.13E+02 60 SCL Unshielded 1.66E+02 Minimum..=::21.5,5E.02 1 .20E+02 Maximum. 1 :!2.4 E 2.03E+02-Mear? - 1 2.O1E+02 1.64E+02

-Qkn,.

Somel

-wv##

> -l t 1 E+01t l

• Be w

.77E+01

- - w ATTACHMENT3 _L~JL

MicroShield v5.05 (5.05-00121)

GPU Nuclear Page :1 File Ref:

DOS File: SC3B6AS5 Date:

Run Date: June 1, 2004 By:

Run Time: 1:52:22 PM Checked:

Duration : 00:00:22 Case

Title:

Seal Chamber 3

Description:

Floor -1" Thick Model Geometry: 13 - Rectangular Volume Source Dimensions Length -2.54 cm 1.0 in Width 777.24 cm 25 ft6.0 in

-Height 175.26 cm 5ft9.O in Dose Points x .Y z

1. 1 10.16cm 87.63 cm 388.62 cm 4.0 in 2ft10.5in 12ft9.0in z Shields Shield Name Dimension Material Densitv Source 2.11e+04 in3 Concrete 2.35 Air Gap Air. 0.00122 Source Input Grouping Method : Actual Photon Energies Nuclide curies becquerels uCi/cM 3 Bq/CM 3 Ba-137m 7.6918e-007 2.8460e+004 2.2231e-006 8.2255e-002 Cs-1 37 8.1309e-007 3.0084e+004 2.3500e-006 8.6950e-002 Buildup The material reference is : Source Integration Parameters X Direction 40 Y Direction . 40 Z Direction 40 Results Ener-v Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV photons/sec MeV/cm2 /sec MeV/cm 2 /sec mR/hr mR/hr No Buildup - With Buildup No-Buildup With Buildup 0.0318 5.892e+02 1.097e-05 1.330e-05 9.139e-08 1.108e-07 0.0322 1.087e+03 2.111e-05 2.574e-05 1.699e-07 2.072e-07 0.0364 3.956e+02 1.172e-05 1.533e-05 6.659e-08 8.71 Oe-08 0.6616 2.561e+04 7.948e-02

• 1.263e-01

• 1.541e-04 2.448e-04

,~4,.J V/I

-Page :2 DOS File: SC3B.MS5 Run Date: June 1, 2004 Run Time: 1:52:22 PM Duration : 00:00.:22 Energy Activitv Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV photgns/sec MeV/cm 2 /sec .MeV//cm 2/sec mR/hr nmR/hr No Buildup With Buildup No Buildup With Buildup TOTALS: 2.768e+04 7.952e-02 1.263e-01 1.544e-04 2.452e-04 s~cla8Vt A-

MicroShield v5.05 (5.05-00121)

GPU Nuclear Page :1 File Ref:

DOS File: SC3B.MS5 Date:

Run Date: June 1, 2004 By:

Run Time: 2:29:02 PM Checked:

Duration : 00:00;19 Case

Title:

Seal Chamber 3

Description:

Floor - 1" Thick Model Y Geometry: 13 -Rectangular Volume wurce Dimensions Length 2.54 cm . 1.0 in Width ;77.24 cm 25 ft 6.0 in Height I175.26cm 5ft9.0in Dose Points x Y z

1. 1 102.54 cm 87.63-cm 388.62 cm 3 ft 4.4 in 2ft 10.5 in 12ft9.0 in Shields Shield Name Dimension Material Density Source .346 -m3 Concrete 2.35 Air Gap Air 0.00122 Source Input Grouping Method : Actual Photon Energies Nuclide curies becquerels wCi/cm,3 Bq/cm 3 Ba-137m 7.6918e-007 2.8460e+004 2.2231 e-006 8.2255e-002 Cs-1 37 8.1309e-007 3.0084e+004- 2.3500e-006 8.6950e-002 Buildup The material reference is : Source Integration Parameters X Direction 40 Y Direction . 40 Z Direction 40 Results Energy Activitv Fluence Rate *Fluence Rate Exposure Rate Exposure Rate MeV photons/sec MeV/cm 2 /sec MeV/cm 2/sec mR/hr mR/hr No Buildup With Buildup No Buildup With Buildup 0.0318 5.892e+02 4.894e-06 5.975e-06 4.076e-08 4.977e-08 0.0322 1.087e+03 9.41ge-06

• 1.157e-05 - 7.581e-08 9.312e-08 0.0364 3.956e+02 5.247e-06 6.912e-06 2.981 e-08 3.927e-08 0.6616 2.561e+04 2.785e-02 3.702e-02 5.400e-05 7.177e-05

Page :2 DOS File: SC3B.MS5 Run Date: June 1, 2004 Run Time: 2:29:Q2 PM Duration : 00:00:19 Energy Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV/m 2/sec 2 MeVIcm /sec __ mR/hr mR/hr MeV photfsi/sec No Buildup With Builduy No Buildup With Buildup TOTALS: 2.768e+04 2.787e-02 3.704e-02 5.415e-05 7.195e-05 11G 4CIJWPve V-M

MicroShield v5.05 (5.05-00121)

GPU Nuclear Page :1 File Ref.:

DOS File: SC3ROOF.MS5 Date:

Run Date: June 1, 2004 By:

Run Time: 2:39:26 PM Checked:

Duration : 00:00:19 Case

Title:

Seal Chamber 3

Description:

Roof - 1" Thick Model Y Geometry: 13 - Rectangular Volume Source Dimensions Length 2.54 cm 1.0 in Width 777.24 cm 25 ft 6.0-in Height 175.26 cm 5 ft 9.0 in

. Dose Points x Y z

1. 1 207.340:2 cm 87.63 cm 388.62 cm 6ft9 3.6 in 2 ft 10.5 in 12 ft 9.0 in z Shields Shield Name Dimension MatEerial Density Source 2.11e+04 in3 Conccrete 2.35 Air Gap Alir 0.00122 Source Input Grouping Method : Actual Photon Energies Nuclide curies becquerels uCilcm 3 Bq/cm3 Ba-1 37m 7.6918e-007 2.8460e+004 2.2231e-006 8.2255e-002 Cs-1 37 8.1309e-007 3.0084e+004 2.3500e-006 8.6950e-002 Buildup The material reference is : Source Integration Parameters X Direction 40 Y Direction 40 Z Direction 40 Results Energy Activity Fluence Rate Fluence Rate -Exposure Rate. Exnosure Rate MeV photons/sec MeV/cm 2/sec MeV/cm 2 /sec mR/hr mR/hr No Builduq With Buildup No Buildup With Buildun 0.0318 5.892e+02 2.414e-06 2.967e-06 2.011e-08 2.471e-08 0.0322 1.087e+03 4.649e-06 5.749e-06 3.742e-08 4.626e-08 0.0364 3.956e+02 2.600e-06 3.448e-06 1.477e-08 1.959e-08 0.6616 2.561e+04 1.288e-02 1.653e-02 2.497e-05 3.205e-05

Page , : 2 DOS File: SC3ROOF.MS5 Run Date: June 1, 2004 Run Time: 2:39:26 PM Duration : 00:00:19 Energy Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV Photgns/sec MeV/cm 2 /sec MeV/cm 2/sec - mR/hr .mR/hr No Buildup With Buildup No Buildup -With Buildup TOTALS: 2.768e+04 1.289e-02 1.654e-02 2.504e-05 3.214e-05 J~cl^~1-6

MicroShield v5.05 (5.05-00121)

GPU Nuclear Page :1 File Ref.:

DOS File: SC3W.MS5 Date:

Run Date: June 1, 2004 By:

Run Time: 2:34:31 PM Checked:

Duration : 00:00:19 Case

Title:

Seal Chamber 3

Description:

Wall - 1" Thick Model Y Geometry: 13 -Rectangular Volume Source Dimensions Length 2.54 cm 1.0 in Width 777.24 -cm 25.ft 6.0 in Height 304.8 cm 10'ft 0.0 in Dose Points x Y z

1. 1 90.17 cirn 152.4cm 388.62 cm 2 ft 11.5 in 5 ft 0.0 in 12 ft 9.0 in z Shields Shield Name Dimension IMaterial Density Source 3.67e+04 in3 C'oncrete 2.35 Air Gap Air 0.00122 Source Input Grouping Method : Actual Photon Energies Nuclide curies becquerels uCi/cm 3 Bq/cm 3 Ba-137m 1.3377e-006 4.9495e+004 2.2231 e-006 8.2255e-002 Cs-1 37 1.4141e-006 5.2321e+004 2.3500e-006 8.6950e-002 Buildup The material reference is : Source Integration Parameters X Direction 40 Y Direction 40 Z Direction 40 Results Energy Activity

• Fluence Rate Fluence Rate Exposure Rate - Exposure Rate MeV photons/sec MeV/cm2 lsec MeV/cm 2/sec mR/hr mR/hr No Buildup With Buildup No Buildup With Buildup 0.0318 1.025e+03 7.135e-06 8.713e-06 5.943e-08 7.257e-08 0.0322 1.8p1 e+03 1.373e-05 1.688e-05 1.105e-07 1.358e-07 0.0364 6.880e+02 7.662e-06 1.01Oe-05 4.353e-08 5.739e-08 0.6616 4.454e+04 4.399e-02 6.042e-02 8.529e-05 1.171 e-04

, 4,1 Pn V- 7

Page . :2 DOS File: SC3W.MS5 Run Date: June 1, 2004 Run Time: 2:34:31 PM Duration : 00:00:19 Energy Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV photgns/sec MeV/cm 2/sec MeV/cm 2/sec -mR/hr mR/hr No Buildup With Buildup No Buildup With Buildup TOTALS: 4.814e+04 4.402e-02 6.046e-02 8.550e-05 1.174e-04 V--

MicroShield v5.05 (5.05-00121)

GPU Nuclear Page :1 File Ref:

DOS File: ENDWLSC3.MS5 Date:

Run Date: June 1, 2004 By:

Run Time: 2:45:23 PM Checked:

Duration : 00:00:19 Case

Title:

Seal Chamber 3

Description:

Side Wallf - 1" Thick Model qeometry: 13 -Rectangular Volume Source Dimensions Length 2.54 cm 1.0 in Width 175.26 cm 5ft 9.0 in

-Height 304.8 cm 10 ft 0.0 in Dose Points x Y

1. 1 391.16 cm 152.4 cm 87.63 cm 12 ft 10.0 in 5 ft 0.0 in 2 ft 10.5 in Shields Shield Name Dimension Material Densitv Source 8280.0 in3 Concrete 2.35 Air Gap Air 0.00122 Source Input Grouping Method : Actual Photon Energies Nuclide curies becquerels Cicicm Bq/cm 3 Ba-137m 3.0164e-007 1.1161e+004 2.2231e-006 8.2255e-002 Cs-1 37 3.1886e-007 1.1798e+004 2.3500e-006 8.6950e-002 Buildup The material reference is : Source Integration Parameters X Direction 40 Y Direction 40 Z Direction 40 Results Energy Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV photons/sec MeV/cm 2 /sec MeV/cm 2/sec mR/hr mR/hr No Buildup

• With Buildup No Buildup With Buildup 0.0318 2.311 e+02 5.174e-07 6.408e-07 4.31 Oe-09 5.337e-09 0.0322 4.263e+02 9.970e-07 1.243e-06 8.023e-09 1.OOOe-08 0.0364 1.551e+02 5.591 e-07 7.473e-07 3.177e-09 4.246e-09 0.6616 1.004e+04 2.502e-03

• 3.111e-03 4.851e-06 6.032e-06 A

J C/ ,. - c/

rage ,. :z DOS File: ENDWLSC3.MS5 Run Date: June 1, 2004 Run Time: 2:45:23 PM Duration : 00:00:19 Energy Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV photons/sec MeVIcm 2/sec *MeV/cm 2/sec mR/hr mR/hr No Buildup With Buildup No Buildup With Buildup TOTALS: 1.085e+04 2.504e-03 3.114e-03 4.866e-06 6.051e-06

/71 c X$4.j /-/D

Seal Chamber 3

• -*-:* a.

• .. a.. .** '.* S*.

• a.

$ K.

.-...1 I:K.::A I '1 I 001 I1 I*

Ceiling Floor

- .306" I

1 89C East Wall 2 3 4 5 6 7 8 9 10 West Wall b2 b00:

Window End Wall Sections

.; .4 120" South Wall 17 X;/_ X ' me East Wall V\\ V North Wall (Mirror Image)

/9/ci(5? 7'M- //