ML051950501
| ML051950501 | |
| Person / Time | |
|---|---|
| Site: | Saxton File:GPU Nuclear icon.png |
| Issue date: | 03/11/2005 |
| From: | Brosey B FirstEnergy Corp |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| E910-05-030 E900-05-402, Rev. 0 | |
| Download: ML051950501 (82) | |
Text
Appendix B-1 (pages 1 -1 1)
Filter SNEC CALCULATION COVER SHEET CALCULATION DESCRIPTION Calculation Number Revision Number Effective Date Page Number E900-05-002 0
3//,L//C I
of 11 Subject PENELEC Switch Yard, Class I Area - Survey Design Question 1 - Is this calculation defined as 'In OA Scope'? Refer to definition 3.5. Yes 0 No [3 Question 2 - Is this calculation defined as a 'Design Calculation'? Refer to definitions 3.2 and 3.3. Yes 0 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.
DESCRIPTION OF REVISION APPROVAL SIGNATURES Calculation Originator B. Brosey/
w Technical Reviewer R. Holmes/ o og Additional Review A. Paynterl g L Additional Review I
A ll1 SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-002 l
0 l
Page 2 of 11 Subject PENELEC Switch Yard, Class 1 Area - Survey Design 1.0 PURPOSE 1.1 The purpose of this calculation is to develop a survey design for the eastern most section of the PENELEC Switch Yard. The entire Switch Yard is shown on Attachment 1-1 and the eastern portion is shown on Attachment 1-2. This section of the switch yard is composed of a Class 1 open land area, several Class 1 concrete block structures, Class 3 unpainted concrete support structures, hazardous equipment and other support structures that will not be surveyed. The following designations apply (see diagrams on Attachment 1-3 to 1-4 and photos of each concrete base structure on Attachment 1-5 through 1-21):
1.1.1 PS3a (Class 3) Unpainted Concrete Structures = -187 m2 1.1.2 PS3-2 -(Class 1) Concrete Block Walls = -4.2 m2 1.1.3 PS4 (Class 1) Open Land Area = - 1,612 m2 1.2 The PENELEC Switch Yard is an operational electrical distribution facility. The eastern portion of the Switch Yard lies mainly in site area OL2. Transformers, switching devices and cabling carry extremely dangerous levels of electricity up to -115,000 volts. Therefore, SNEC management has designated only select items/areas to be the subject of a Final Status Survey. A detailed justification and basic safety considerations for a limited survey approach is provided in Attachment 1-22. Accordingly, the following items/areas will not be surveyed under this survey design:
1.2.1 Steel support structures, light poles or any other metallic structure or component, 1.2.2 Soil sampling, and scanning will not be performed in areas near equipment designated by SNEC management as a 'HAZARD AREA" (see Attachment 1-22).
1.2.3 Soil sampling below the yard grounding mat will not be performed. The grounding mat is at a depth of approximately 16".
2.0
SUMMARY
OF RESULTS The following information should be used to develop a survey request for these survey units.
2.1 The effective DCGLw values are listed below. The US NRC has reviewed and concurred with the methodology used to derive these values. See Attachment 2-1 to 2-8.
Table 1, DCGLw Values l Gross Activity DCGLw (dpm/100 cm2) l Volumetric DCGLw (pCUg - Cs-137) l 44,317 (33,238 A.L.)
5.75 (4.31 A.L.)
NOTE 1: A.L is the site Administrative Limit (75% of effective DCGLw)
NOTE 2: Decay date is December 15, 2004 2.2 Soil Survey Design - PS4-1 2.2.1 Scanning of soil (and gravel materials) shall be performed using a 2" D bV 2" L Nal detector with a Cs-137 window setting. The window will straddle the Cs-1 37 662 keV full energy peak width. The instrument conversion factor shall not be less than the lowest functional value reported on Attachment 3-1 (209 cpmfuR/h - Cs-137).
2.2.2 The MDCscan is determined using the MicroShield model of Attachment 4-1. Initial MDCscan calculations for soil are shown on Attachments 4-2 and 4-3.
G o d1 SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-002 0Page 3 of 11 Subject PENELEC Switch Yard, Class 1 Area - Survey Design Table 2, Soil Scanning Parameters MDCscan (pCIg) - Cs-137 Scan Speed (cm/sec)
Maximum Distance from Surface
% Coverage' 3.2 25 4' (gap between detector face & soil surface) 100%
NOTE: See Attachment 4-2 for calculation of MDCscan value for soils.
- Except in Hazard Area' designations (see Attachment 1-22).
2.2.3 Soil should be scanned using a serpentine pattern that is -0.5 meters wide.
2.2.4 Background has been measured in the Switch Yard area and ranges from about 100 cpm to 200 cpm (see Reference 3.1). If a count rate of greater than 300 Cross cpm is encountered during the scanning process, the surveyor should stop and locate the boundary of the elevated area. The surveyor should then mark the elevated area with stakes or other appropriate marking methods. Sample the elevated areas(s) lAW SNEC procedure E900-IMP-4520.04 (Reference 3.2).
2.2.5 Sampling points are to be clearly marked. identified and documented.
2.2.6 All survey personnel shall be trained to identify 300 gross cpm based on the audible instrument response.
2.2.7 Other instruments of the type specified in Section 2.2.1 above may be used during the FSS, but they must demonstrate a detection efficiency at or above the value listed in Section 2.2.2.
2.2.8 The minimum number of sampling points indicated by the Compass computer program for this survey unit (Reference 3.3) is 16 (see Compass output - -1 to 5-4). Sampling depth should not be more than the top -16 inches (40 cm) of soil in most areas, and not be deeper than the grounding mat. When sampling in an area where more recent crushed stone has been applied, collect two (2) samples per location whenever possible. One (1) from the new upper layer and one (1) from the older lower materials.
2.2.9 VSP (Reference 3.4) is used to plot all sampling points on the included diagrams.
The actual number of random start systematically spaced measurement points may be greater than that required by the Compass computer code because of any or all of the following:
placement of the initial random starting point (edge effects),
odd shaped diagrams, and/or coverage concerns (see Attachment 6-1 for VSP sampling point locations - VSP output) 2.2.10 The starting points for physically locating sampling sites are based on measurements from a local landmark (as noted on Attachment 6-1). Some sampling points may need to be adjusted to accommodate obstructions/hazards within the survey area. Contact the SR coordinator to report any difficulties encountered when laying out systematic grid sampling points (see also Section 1.2).
_SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-002 I
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Page 4 of 11 Subject PENELEC Switch Yard, Class 1 Area - Survey Design 2.2.11 When an obstructionmhazard is encountered that will not allow collection of a sample, contact the cognizant SR coordinator for permission to delete the samplina noint.
NOTE If remediation actions are taken as a result of this survey, this survey design must be revised or re-written entirely.
2.3 Unpainted Concrete and Concrete Block Surfaces - PS3a-1 & PS3-2 2.3.1 There are two Class 1 drain line retainer walls in the east Switch Yard area. These are shown on Attachment 7-1 (item No. 1 & 2), with assigned random start systematic measurement point locations (from Compass -
Reference 3.3). In addition, there are numerous other unpainted concrete structures in the Switch Yard.
These items are shown on Attachment 7-2 along with their assigned random start systematic measurement point locations (see also Attachment 13-1 to 13-4 and 14-1 to 14-3 for Compass output for these structures).
2.3.2 All concrete surfaces shall be scanned with a GFPC survey instrument. The detection efficiency for Cs-1 37 beta radiation shall be no less than 23.9% (et).
2.3.3 The fraction of Cs-1 37 in this sample mix is presented on Attachment 2-8 as 0.599.
A mean efficiency loss factor for weathered concrete is determined from -1 to be approximately 0.285 (based on area inspection results shown on Attachment 9-1 through 9-3 and Reference 3.13). This value will be used for both concrete block and unpainted concrete surfaces, and yields the following detection efficiency factors.
Table 3, GFPC Detection Efficiency Data l
i l
l% Cs-137 Efficiency Loss Factor counts/disintegration l 0.478 0.5 59.9 1
0.285 0.041 2.3.4 The calculated MDCscan results are shown below for both unpainted concrete and concrete block materials.
Table 4, GFPC MDCscan Data MDCscan Material Type (dpml100 cm2)'
Minimum No. of Static Points Action Level Assigned During Phase I Scanning Concrete Block 3,487 11*
1400 gross cpm (Class 1)
Unpainted Concrete 3,306 11*
1000 gross cpm (Class 3)
'As calculated by the Compass computer program (Reference 3.3), Attachment 13-4 and 14-3.
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-002 0
Page 5 of 11 Subject PENELEC Switch Yard, Class I Area - Survey Design 2.3.5 Class 1 concrete block surfaces require 100% scan coverage in all accessible areas.
Class 3 coverage is typically judgmental up to 10% coverage IAW Reference 3.5.
Because of safety issues there is a significant amount of surface area in the Switch Yard that will not be surveyed. Therefore, at a minimum, items 5, 8, 9, and 18 should have 100% of all accessible surfaces scanned (see Attachment 1-2 for the locations of these items and their photos in Attachment 1-8, 1-11, 1-12, and 1-21).
NOTE If the action level for the Class 3 area (unpainted concrete) is exceeded, the survey unit should be re-classified and re-surveyed IAW Reference 3.5, Table 5-7. To ensure that an elevated count rate is the result of Cs-137 contamination, sample any concrete surface location above the action level and gamma scan the sampled materials.
2.3.6 Sampling Concrete Surfaces 2.3.7.1 Sample any location that is above the action level cited is Section 2.3.2 above. Remove the first 1" of concrete to yield a volume of at least 200 cc to ensure an adequate counting MDA for Cs-1 37.
3.0 REFERENCES
3.1 SR-1233, PENELEC Switch Yard, Trench & Sumps & Yard Soil Survey Results, 12/22/04.
3.2 SNEC Procedure E900-IMP-4520.04, "Survey Methodology to Support SNEC License Termination".
3.3 Compass Computer Program, Version 1.0.0, Oak Ridge Institute for Science and Education.
3.4 Visual Sample Plan, Version 2.0 (or greater), Copyright 2002, Battelle Memorial Institute.
3.5 SNEC Facility License Termination Plan.
3.6 SNEC Procedure E900-IMP-4500.59, 'Final Site Survey Planning and DQA".
3.7 GPU Nuclear, SNEC Facility, 'Site Area Grid Map', SNECRM-020, Sheet 1, Rev 2, 1/29/03.
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 NUREG-1575, "Multi-Agency Radiation Survey and Site Investigation Manual", August, 2000.
3.11 Microsoft Excel 97, Microsoft Corporation Inc., SR-2, 1985-1997.
3.12 SNEC Calculation No. E900-03-018, "Optimize Window and Threshold Settings for the Detection of Cs-137 Using the Ludlum 2350-1 and a 44/10 Nal Detector", 817/03.
3.13 SNEC Calculation No. 6900-02-028, GFPC Instrument Efficiency Loss Study.
3.14 Saxton Soil Remediation Project Report, 1994.
3.15 SNEC Facility Site Area Grid Map, Revision 4.
jiv e
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-002 0
Page 6 of 11 Subject PENELEC Switch Yard, Class I Area - Survey Design 4.0 ASSUMPTIONS AND BASIC DATA 4.1 The Compass computer program is used to calculate the required number of random start systematic samples to be taken in these survey units (Reference 3.3).
4.2 Soil and sediment samples from the Switch Yard area are used as the initial estimate of variability for the area. These results are shown on Attachment 10-1.
4.3 Using the GFPC values shown in the Table 3, the estimated MDCscan values for both types of concrete are shown in Table 4. Both of these calculated values depend on backgrounds for like materials as shown on Attachment 11-1 and 11-2.
4.4 Switch Yard concrete variability measurements are shown on Attachment 12-1.
4.5 The MARSSIM Sign Test will be applicable for the soil survey design. No background subtraction will be performed under this criteria during the DQA phase. The concrete surface area survey design requires the WRS testing criteria.
4.6 Compass output for the concrete block wall materials are shown on Attachment 13-1 to 13-4.
4.7 Compass output for unpainted concrete base structures is shown on Attachment 14-1 to 14-3.
4.8 The number of points chosen by Compass are located on the survey map for the survey unit by the Visual Sample Plan (VSP) computer code (Reference 3.3).
4.9 Reference 3.6 was used as guidance during the survey design development phase.
4.10 The site area drawing used to determine the physical extent of this area is listed as Reference 3.7.
4.11 Remediation History Scoping and characterization surveys using the guidance of NUREG/CR 5849, were conducted in this area in late 1993. Additional surveys followed remediation of impacted surfaces which was performed in 1994. The results are reported in Reference 3.14.
Reference 3.15 defines the current MARSSIM Class 1 impacted areas for the SNEC Facility Site. As reported in the 1994 report (Reference 3.14), the following grids in the substation (using the current XY coordinate system) were identified as 'requiring remediation".
BA-129, BA-130, AY-130, BB-129 (Switch Yard Drainage Path" (SYDP)) & BC-129 (SPDP)
f-SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-002 0
Page 7 of 11 Subject PENELEC Switch Yard, Class I Area - Survey Design The pre and post remediation "grid average Cs-137 concentration" results in pCi/g from these areas are given in the report as follows:
GdNo.
pCUg (pre) pCIg (post)
BA-129 3.2 0.67 BA-130 1.17 0.39 AY-130 4.1 1.9 AZ-130 3.14 1.72 BB-129 3.65 0.76 (SYDP)
BC-129 3.65 0.76 (SYDP)
The following additional grids were surveyed and activity guidelines - no remediation required":
samples were found to be "within Grid No.
pCI/g AY-131 1.93 AY-132 0.09 AZ-131 1.68 AZ-132 0.33 BA-131 0.65 BA-132 0.27 BD-129 0.77 BD-130 0.37 BE-129 0.51 4.12 The soil survey design uses Cs-137 as a surrogate to bound the average concentration for all SNEC facility related radionuclides in the survey unit. The effective DCGLw is just the permitted Cs-137 concentration (6.6 pCi/g) lowered to compensate for the presence (or potential presence) of other SNEC related radionuclides. In addition, an administrative limit (75%) has been set that further lowers the permissible Cs-137 concentration to an effective DCGLw for this radionuclide.
The PENELEC Switch Yard is adjacent to the OL1 area and part of the Switch Yard is in the 0L2 area so that the sample mix is assumed to be the same as that currently assigned to the CV yard area. The sample list was decayed to December 15t', 2004. In all, twenty three (23) sample results were used to determine the best representative mix.
4.13 The sample database used to determine the effective radionuclide mix has been drawn from previous samples that were assayed at off-site laboratories. This list is shown on -1 to 2-8, and includes (23) analysis results. Review of the data shows several radionuclides have not been positively identified at any significant concentration.
These radionuclides have been removed from the data set and will not be considered further. Radionuclides removed include Am-241, C-14, Eu-152, Ni-63, Pu-238, Pu-239 and
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-0502 0
Page 8 of 11 Subject PENELEC Switch Yard, Class I Area - Survey Design Pu-41. Additionally, the data shows Cs-137 to be the predominant radioactive contaminant found in the area. Sr-90 on the other hand, was positively identified in only one (1) sample.
H-3 was identified as a positive contaminant in six (6) samples, and Co-60 was identified in three (3) samples.
The decayed sample results were input to the spreadsheet titled 'Effective DCGL Calculator for Cs-137" (Reference 3-8) to determine both the effective volumetric DCGLw and gross activity DCGLw values for this area. The output of this spreadsheet is shown on -8.
The Nal scan MDC calculation is determined based on a 25 cm/sec scan rate, a 1.38 index of sensitivity (95% correct detection probability and 60% false positive) and a detector sensitivity of 209 cpm/uR/h for Cs-137. Additionally, the detection system incorporates a Cs-1 37 window that lowers sensitivity to background in the survey unit. The resulting range of background values varies from about 100 cpm to -200 cpm. The resulting MDCscan is
-3.2 pCilg (see Attachment 4-2 and 4-3).
4.14 The survey units described in this survey design were inspected by SNEC personnel. A copy of portions of the SNEC facility inspection report (Reference 3.9), is included as -1.
4.15 No special area characteristics including any additional residual radioactivity (not previously noted during characterization) have been identified in this survey area.
4.16 The decision error for this survey design is 0.05 for the a value and 0.1 for the 1 value.
4.17 "Special measurements" (as described in the SNEC LTP) are not included in this survey design.
4.18 No additional sampling will be performed lAW this survey design beyond that described herein.
4.19 SNEC site radionuclides and their individual DCGLw values are listed on Exhibit I of this calculation.
4.20 The survey design checklist is listed in Exhibit 2.
4.21 Area factors applicable in the soil survey unit are provided on Attachment 5-1. Area factors are not applicable in Class 3 areas.
5.0 CALCULATIONS 5.1 All calculations are performed internal to applicable computer codes or within an Excel spreadsheet.
6.0 APPENDICES 6.1 -1, is a diagram of the PENELEC Switch yard area showing all three area Classifications.
6.2 -2, is a diagram of only the Class 1 area of the Switch Yard with each concrete base structure identified by number.
6.3 -3, is a drawing of both Class 1 concrete block structures (items 1 & 2).
6.4 -4, is a drawing of each Class 3 unpainted concrete base structure in the Switch Yard Class 1 area.
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-002 0
Page 9of1l Subject PENELEC Switch Yard, Class I Area - Survey Design 6.5 -5 to 1-21, are photos of the concrete base structures in the Switch Yard area.
6.6 -22, is the justification for a limited survey of the Switch Yard and some basic safety concerns for this area.
6.7 -1 to 2-8 is the sample results from the OL1 area in addition to the DCGL calculation sheets (decayed to December 15, 2004).
6.8 -1, is a copy of the calibration data from typical Nal radiation detection instrumentation that will be used in this survey.
6.9 -1, is a MicroShield model of a soil volume used to determine the exposure rate from a 1 pCi/g Cs-137 source term in a cylindrical geometry of six (6) inches in depth for an assumed density of 1.6 g/cc.
6.10 Attachment 4-2 and 4-3, is the soil MDCscan calculation sheets.
6.11 -1 to 5-4, is the Compass output for the soil within the Class 1 area of the Switch Yard.
6.12 -1, is the sample point locations with dimensions for the Class 1 soil area.
6.13 Attachment 7-1, is the diagram of Class 1 concrete block structures showing static measurement points.
6.14 Attachment 7-2, is the diagram of Class 3 unpainted concrete base structures showing static measurement point locations.
6.15 Attachment 8-1, is the Cs-1 37 efficiency factor determined from Reference 3.13.
6.16 Attachment 9-1 to 9-3, is the results of the inspection report from the Switch Yard area.
6.17 Attachment 10-1, is soil sample results from characterization of the Switch Yard.
6.18 1-1 and 11-2, are GFPC concrete background measurements.
6.19 2-1, is GFPC concrete variability measurements from the PENELEC switch Yard.
6.20 Attachment 13-1 to 13-4, are Compass output results for concrete block structures (items 1 and 2).
6.21 4-1 to 14-3, are Compass output results for unpainted concrete base structures.
CSNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-002 0
Page 10 of 11 Subject PENELEC Switch Yard, Class 1 Area - Survey Design Exhibit I SNEC Facility Individual Radionuclide DCGL Values (a) 25 mremly Limit 4 mremly Goal 25 mremly Limit (All Pathways)
(Drinking Water)
Radionuclide Surface Area Open Land Areas Open Land Areas (b)
(dpml100cm2)
(Surface & Subsurface)
(Surface & Subsurface)
(pCilg)
(pcig)
Am-241 2.7E+01 9.9 2.3 C-14 3.7E+06 2
5.4 Co-60 7.IE+03 3.5 67 Cs-1 37 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 3.0E+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 mremly goal, only the DCGL values that constitute the 25 mrernly 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).
G o d
SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-002 I
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Page 11 of 11 Subject PENELEC Switch Yard, Class I Area - Survey Design Exhibit 2 Survey Design Checklist Calculation No.
lLocation Codes
_E900-05-002 lPS3a-1, PS3-2, PS44 (PENLEC Switch Yard)
Status Reviewer ITEM REVIEW FOCUS (Circle One) Initials & Date I
Has a survey design calculation number been assigned and is a survey design summary NIA description provided?
2 Are drawings/diagrams adequate for the subject area (drawings should have compass e
N/A 1
1 /O
______headings)?
3 Are boundaries properly identified and is the survey area classification clearly Indicated?
)
N/A4 4
Has the survey area(s) been properly divided into survey units LAW EXHIBIT 10 s N/A 5
Are physical characteristics of the area/location or system documented?
6 Is a remediation effectiveness discussion included?
N/A 7
Have characterization survey and/or sampling results been converted to units that are comparable to applicable DCGL values?
Yo 8
Is survey and/or sampling data that was used for determining survey unit variance included?
(7e)
NoA 71 I 9
Is a description of the background reference areas (or materials) and their survey and/or
/I sampling results included along with a justification for their selection?
N/AxL..
10 Are applicable survey and/or sampling data that was used to determine variability included?
es NIA 2
1 1
~Will the condition of the survey area have an impact on the survey design, and has the probable impact been considered in the design?
__es N/O Has any special area characteristic including any additional residual radioactivity (not 12 previously noted during characterization) been identified along with its Impact on survey Yesg N design?
a_____
13 Are all necessary supporting calculations and/or site procedures referenced or Included?
CIsA 3/7/
14 Has an effective DCGLw been identified for the survey unit(s)?
e NIA 15 Was the appropriate DCGLEmc included in the survey design calculation?
es NIA n7 5-16 Has the statistical tests that will be used to evaluate the data been Identified?
6e NIA 17 Has an elevated measurement comparison been performed (Class I Area)?
e NIA
)/i/
18 Has the decision error levels been identified and are the necessary justifications provided?
(e NIA
>1 19 Has scan instrumentation been identified along with the assigned scanning methodology?
es NIA
//0 20 Has the scan rate been identified, and is the MDCscan adequate for the survey design?
e NI 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?
Yes.e X
./
22 Is survey instrumentation calibration data included and are detection sensitivities adequate?
n)dNIA 23 Have the assigned sample and/or measurement locations been clearly identified on a diagram i)
NIA or CAD drawing of the survey area(s) along with their coordinates?
X 24 Are investigation levels and administrative limits adequate, and are any associated actions l NIA clearly indicated?
25 For sample analysis, have the required MDA values been determined.?
- Yes, Yes,@)_
26 Has any special sampling methodology been identified other than provided In Reference 6.3?
Yes,(NIA)
NOTE: a copy of this completed form or equivalent, shall be included within the survey design calculation.
Appendix B-1 (attachment 1-1 to 1-8)
137
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BC4 BBf i 136 135 134 133 132 131 130 (tf 129 128 6-BG IT I
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BF BE BD BC BB BA AZ AY H
BAO AZ4 AY CP 137 PeNELEC Switch Yard 135 133 1
130 129 12E3 136 134 132 131 C (Q
Switch Yard Class 1 Area 131 130 129 128
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BB 17 B
~AY 131 130 129 128 (C9Z-
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Appendix B-1 (attachment 1-22 to 2-4)
The following are the FirstEnergy specific requirements applicable to entry and work in substations. Please note that other routine safety requirements such as use of PPE, switching & tagging, confined space, etc., are not covered here From subsection 411 "Substations" of section 400 "Electrical Safety" of the FirstEnergy uEnergy Delivery Accident Prevention Handbook" the following precautions are to be observed when working in or near Company substations that may be applicable to your question:
411.1 Employees assigned to work in substations or perform switching must be:
(a) Properly qualified through training or work experience.
(b) Familiar with the equipment being operated and knowledgeable of the "Manual of Operations".
411.5 When handling material and equipment, care must be taken to maintain minimum approach distances. (Approach distances are covered in section 412) 411.6 before driving into a substation, radio antennas on vehicles must be lowered and secured in place.
411.8 A qualified person must escort all unqualified personnel when entering a substation.
(Qualified persons are defined in OSHA 29 CFR 1910.269) 412 Minimum Safe Working Distances from Energized Conductors or Equipment 412.1 Unless properly protected, qualified personnel must maintain minimum working distances and clear hot-stick distances from uninsulated and energized equipment as outlined in the following:
A table follows showing the minimum clearances. The shortest applicable is 2'-1" from 1.1 kV to 3'-2" for 115 kV. Please note however that these distances only apply to uQualified Personnel".
412.3 Employees/contracted personnel not electrically qualified per the requirements of 29 CFR 1910.269 must maintain a minimum approach of at least 10 feet from energized conductors and equipment.
Note that except for some Company specific terminology, these requirements come from OSHA 29 CFR 1910.
For Final Status Survey (FSS) work in the Saxton Penelec Substation, Radiological Controls technicians who are not electrically qualified per the requirements of 29 CFR 1910.269 must maintain a minimum approach of at least 10 feet from energized conductors and equipment.
Much of the lattice support structure and almost all of the components in the substation are inaccessible to personnel not so qualified. In addition, the ground surface within 10 feet of un-insulated energized equipment would be inaccessible for FSS.
ATTACHMNENNUJ-
DCGL Calculation Logic-CV Yard Soil & Boulders Survey Unit: SNEC Containment Vessel (CV) Yard Soil and Boulders
- 11.
==
Description:==
The purpose of this calculation is to determine a representative isotopic mix for the CV Yard Soil and associated Boulders from available sample analyses.
The effective 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 six (6) 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 sample analyses. Results are from scoping, characterization, and pre/post remediation surveys. The samples consist of soil media that was 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 yellowlshaded background fields while MDA values are noted in the gray shaded fields.
Table 2: Decayed Listing - This table decays the data from Table 1. Half-life values (days) are listed above each respective nuclide column. Samples are decayed from the respective analysis date to January 15, 2004. Positive results are denoted in a yellow background field while MDA values are noted in the gray shaded fields.
Table 3: Decayed Listing of Positive Nuclides & MDAs Removed - This table provides the best overall representation of the data. Non-positive nuclide columns have been removed as well as all the MDA values. Therefore, 11 nuclides have been reduced to four (4).
Table 4: Ratio to Cs-137 for Positive Nuclides -This table provides the calculation methodology for determining the surrogate ratio to Cs-137 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 5. Note that the mean percent values were averaged using only the positive sample results in each column. In some cases only a single nuclide value (e.g. Sr-90) had a positive result. This value is listed as the value in the mean result field. This results in higher "mean percent of total values in the mix, which are conservative.
Note: From Table 4 only the "mean % of total" values are used as input to the "Effective DCGL Calculation Spreadsheet" as illustrated in Table 5.
Table 5: Effective DCGL Calculator for Cs-137 (in pCilg) -This table provides the surrogate volumetric modified Cs-137 DCGLW calculation results from data derived from Table 4.
IV.
Summary - Since the CV Yard and Boulders are volumes of soil or rock material, existing in place or in a pile, the release limit is primarily based on the volumetric DCGLW. Using the above data selection logic tables the calculated Cs-1 37 volumetric DCGLW is 5.73 pCi/g. This value will be reduced by 25% as part of SNEC's requirement to apply an administrative limit as discussed in the License Termination Plan (LTP).
1 ATTACHMENT
.Z -
TABLE 1 *Date Listing pCUg)
LOC5,lo,-DewsiptoosI H.!
I [
S.a0 I
0C.60 I
-137 C0 Tunnel Sedmenl Compoase. OL0 9,40E.00 I
967E00 I
1.26E.00 1.25E.03 2
SMSS 3
1 SXSL I M 7.LOOM2 5.9oEM I I
I I
I I
I S O2 1
S5XSL 69 5orth CV' Yali Sol! AY.127. 810 El, Sampb:e. O15 S
SXSLIII$
6 SXSL122 7 1 SXSL S3S
., ICh CV Yad 50 0AY.125, 8045 El, Sample 2.OLI liorh CV Yall,Sil AY-12, 798' EI, Sample 2 OL N0,7h CV Yard S0oil AX -29, 930 El, Sample o 4. OL IihCV VALL SomI 0AZ-30 SampleS.OLI AX-129. 3.3. SoSl. CV SE Sid. 65 FNol CV. E00 El.. OL1 AX4-28, 3.1 Sol, CV Tnnel Easl 6S Fiom CV 6509 El. 0t1 4.88E'00 I
SX 1 I132
[.... XSL5270 SO.SLiZO SO SI.2 6-4 3.44E00 4.9~Eo00 2.98Eo00 1.13Eb01 1.15E.01 2.O0EnG 1.89E.00 1.900.00 529E402 2.179E02 536S-02 I
2.43.02 4.77E000 I 1.83E.01 I 8,94E.02 I 4.00E-02 1 3.-00 1 2,06E.01 I 8.75E00 I 8.62E42 3.0E42 1.00E402 I 4.38E00 I 3.10E.02 1 1.600.2 I 7.00-E03 I 11E+.0 I 4.ICE-00 I 7.78E000 I 40i.0042 SXSL2971 CVAea -EasCYArOil Pile -MFAle, 12 ian 53p.
OLI I
SX I - Bol0om 10
- 0. too celie, I OL0 3.00E02 I
6.OOE02 1.00E-01 I I
0.25E.01 I 7.00E-03 I 5.00E.03 I 5.00E43 I 3.69f01 I 8.60E-02 I 3.41E000 I 3.0fE.02 SXSL3ii2 SDII Pxe. tV Yard, T
[
EAsl CV Mlrd. Soil P~le* 300E0ST Side (IS Deplh). 01?
S., P,10. CV Y.a.ld Si, Fee On EA8St Side. SR.37. OLI Eas, CV Yard. Sm)t Pile 9 Top 16 Depth). OL4 CV Y.,1,5 Soil,. Viea S de, API.?.
I11 2.97E.02 5
0.00E42 3.000-01 I I
I I
I I
I 5 I SXS01353 SXSL 4142 22 23 SX I- \\188e Sde AP01-7OLi 2.23E000 3.16E-02 I 5.00-E02 I 5.00E41 SX k.ilsS 6ide. AP1.7. A11 2.2ff.-0 2.77E.0 I
2 LIMA I
3.90E00 77E642 1
A 012 I
'3U.0ff
.S
'*'
L"
.L..................L 1.
1 ARI r 7.
2 -Deayed i imit, lCIIrOt
-. L Z
'J'_'_
_r_
In 4j\\3K1 T72 T12 T12 T.2 T 12 T1,2 I112 T12 SIIEC S18 L0i0 1
I I
COV Tunel I
CVT 10446.15 1925.23275 Sr-Si Co-SO 9.01E.00 8.59E001 4.0E.02 5.11E-02 1S7E402 SXSSL99219 Soboolare Sa-ple.29 (0.61), AY.12.0 OL I SXSLS63 Iidrth CV Yar.d Soil BA0.27.S 62 Es, SamPIe* 0,01.2 SXSL1009 1lohri CS' Yar Soil AY-127. S11 El. Sample 8.0 OLI SXSL!16 SloTS CV Yars Soil AY-12E, 604 Et. Sample 1 2.0 OL SXSL1122 715 Orsh tY 4.l129 7S9 El 0I. 504 I '.
I 8.55E-01 I 9.59E.02 1 4.62E.02 1 3.27E02 I 3.50E 4.47E.00 SXSL153 SXsL0612 SXSLI270 SXSS.218 sxsL2e4t
_10l,7hCV YsAW S oil AX129 a803' E SampIe r 4 OL1 Slorsh CV Yard SolI AZ130, Sample *5.01. I AX.129. 3-3? Soil. CV SE Side S' From CV. 654 E l. OLI.
4AX128.
34 Soil, CV Tu7e0E0,1 F r'fom CV. t00 EI. OLI Anults Wef1 0-2. 6So 10 Depth. OL CV Aea -Ea 61 Yard Dl I Pile Midd7le. I 2 Way 55l, 01t CV Area -Sas I Yad DOit Pile Pollom ll8Ials 0
top celel, 0 2.28E02 2.44E.02 2J6E42 7,220.03 4.60E-00 l 1.030Et I 8.83E.02 I 4,00E.02 3.42E 201.3E:O6 900211.-
98- 0.0 11M E-02 2.180*91 I 3,69#02 I 6.86E.03 1 T.0OE.03 11.870E
>.6
'01
'00_
'00
'00.
'00.
+00 01
- 09 41 _
T12 I S1osello 7.
98' 15 20 2.10E-01 1O0E8 01 I 485E 4 2 I Jone27 2s o
2 I s67 T 12 T 12 l
Decay Date 2.06E.01 I 8.66E00 I 797E.02 I Jose 25.2002 l 565 3.93E000 C 7.53E*0 1 6.170-02 j
Juy 2S 2005 1 90s 287E.02 I
548E.02 5.37E41t lM-rh 8. 2082 l 680 SXSL33O I0 Eas$ 00CVY58 Soil PPinl f 60 on 50, Sim 50 SXSL314t9 15 1801.3163 25 S11SL542 22 6061454 1
23 S0S14149
_ 5o Pill CV YAW, Three Feet -6 Ew8t Sise SP-37, 0L1
_*0 005 C Yard. Sosi Psle Q 3 on6181 Side 76' 506561 015 So0l Ple, CV Yar.d Sir Feel on E1st Side, SR-37. 15
_ 7 CV VY d, S6,i PsIe QTop ;S" Depth).0OLI CV1 YAW Soil -5lest Site, 8P61,0 OL 2.85t402 5.81E42 1,7 0 0.0 0 1 6 4E
.02 I 1.000-02 7.S9t41 6.9003 J 4.5t.03 5.090-3 3.45tJ 5.61E01 1.22E4000 3.99E-03 I 4.95E-03 5.00E403 3.52E0-
,30t.-02 3.65E-00 3.54E-02 Au00st 30. 2002 520 2.18E000 3,23E.02 I 4.S1E402 0.94E-01 1,76E-02 6,69E.02 2.02E402 Octobe, 2. 20031 105 KEY Yelosw Shaded Background = Positive Result Gray Shaded BackgroUnd = MDA 2
('93
-E
.r CJ TABLE 3 - Decayed Listing of Positive Nuclides & MDAs Removed (pCi/g)
SIJEC Sample lo LocationDescription N 3 Sr-90 Co-60 Cs-137 Total pCilg 1
CV Tunnel CV Tunnel Sediment Composite. OL1 9,O1E+OO 8.59E.01 1.17E+03 1175.89 2
SI9SL9921S Subsutace Sample 529 (0.6'). AY-128S OLI 5.36E-01 0.54 3
SXSL1063 lorth CV Yard Soil 8A-127, 812 El. Sample a S. OL2 4.20E0oo 8.55E-01 5.05 4
SXSL1089 tlorth CV Yard Soil AY.127, 810' El, Sample: 3. OL1 2.78EE00 1.24E+00 4.02 S
SXSL111S llorth CV Yard Soil AY.728. 804 El, Sample s 2. OL1 4.47E400 1.74E+00 6.21 3
SXSt122 lorth CV Yard Soil AY.129. 798 El, Sample :2. 0Lt 3.15E+00 4.60E+00 7.76 7
SXSLI130 Niorth CV Yard Soil AX-129. 803 El, Sample :4. OLI 4.58E+00 2.44E-02 2.18E+01 26.42 8
SXSL1132 lNorth CV Yard Soil AZ-130. Sample :5. 01.
2.73E+00 2.50E+00 8.23 9
SXSL1270 AX-129. 3-3. Soil. CV SE Side 5 FProm CV, 800 El., OL1 2.1E+01 21.82 10 SXSL1281 AX-128. 3-1. Soil. CV Tunnel East 5' From CV. 800 El. OL1 4.14E+00 4.14 11 SXSL2649 Anulus Well. A-2. 61 10 0Depth.OL1 5.74E-01 0.57 13 SXSL2871 CV Area - East Yard Dirt Pile. Middle. 1 2 Way Up. 01.
5.37E-01 0.54 14 SXSL2872 CV Area - East Yard Dirt Pile - Bottom (also top center), OL1 9.58E-02 0,10 Is SXSL3140 East CV Yard. Soil Pile @S' on Cest Side (8 Depth). OL1 7.99E.01 0.80 18 SXSL3142 Soil Pile. CV Yard. Thr ee Feet on East Side, SR-37. OL1 5.81E.01 0.60 17 SXSL3145 East CV Yard. Soil Pile d 3' on East Side (8" Depth), OL1 1.22E+00 1.22 18 SXSL3149 Soil Pile. CV Yard. Six Feet on East Side, SR-37. OL1 2.90E.01 0.29 19 SXSL3153 East CV Yard. Soil Pile Q Top (6 Depth). OL1 2.91E.01 0.29 21 SXSL4142 CV Yard Soil. West Side. API-7. OL1 8.94E-01 0.89 22 XL814143 CV Yard Soil - West Side. AP1-7. OL1 4.97E-01 0.50 23 SXSL41J9 CV Yard Soil - Wfest Side. API-7., OL1
_6.74E.02 3.87E+00 3.94 TABLE 4 -Ratio To Cs-137 for Positive Nucildes SIIEC Sample llo LocationDescription H-3 Sr-90 Co-SO Cs-137 Total I
CV Tunnel CV Tunnel Sediment Composite, OL1 7.71E-03 7.35E.04 1.OOE+0O 1.01 2
SX9SL99219 Subslface Sample 02g (0-5 ). AY-128. OL1 1.OOE+O0 1.00 3
SXSL1063 Nlorth CV Yard Soil DA-127. 812 El, Sample 85, OL2 4.91E.00 1.QOE.00 5.91 4
SXSL1089 llorh CV Yard Soil AY-127, 810' El, Sample :3. OL 2.23E+00 1.OOE+00 3.23 5
SXSL111 tlorth CV Yard Soil AY.128. 804 El. Sample :2. OLI 2.57E+00
_._OE+003 3.57 6
SXSL1122 tlorth CV Yard Soil AY-129, 798' El. Sample a 2, OL1 6.85E-01 1.OOE+00 1.68 7
SXSLI13O llorth CV Yard Soil AX-129, 8038El. Sample
- 4. OL1 2.10E-01 1.12E-03 1.OOE+OO 1.21 8
SXSL1132 llorth CV Yard Soil AZ-130. Sample :5. OL1 1.09E+00 1.O0E+00 2.09 9
SXSL1270 AX-129. 3-3. Soil, CV SE Side 5' From CV, 800 El.. OL1 1.OOE+OO 1.00 10 SXSL1281 AX-123. 3-I. Soil. CV Tunnel East 5 From CV, 800 El. OL1 1D.OOE'OO 1.00 11 SXSL2649 AnuluIs Well. A-2, S to 10 Depth, OL1 1.OOE+00 1.00 13 SXSL2871 CV Area - East Yard Dirt Pile -Middle, ;2 Way Up. 0L 1.OOE+OO 1.0o 14 SXSL2872 CVlAre x East Yord Dirt Pile-Bottom (also top center). O11 1.OOE+00 1.00 15 SXSL3140 East CV Yard. Soil Pile a8 6 on Weast Side (68 Depth). OL1 1OOE+00 1.00 16 SXSL3142 Soil Pile. CV Yard. Three Feet on East Side. SR-37. OL1 1.OOE+00 1.00 17 SXSL3145 East CV Yard. Soil Pile @ 3' on East Side (6S Depth). OL1 1.OOE+00 1.00 19 SXSL3149 Soil Pile, CV Yard. Six Feet on East Side, SR.37. OL1 1.OOE+00 1.00 19 SXSL3153 East CV Yard. Soil Pile Q Top (6 Depthl.011 O1.00E+00 1.00 21 SXSL4142 CV Yard Soil -West Side, APt-7. OL.
1.OOE+OO 1.00 22 SXSL4143 CV Yard Soil -West Side. AP1-7 1
OL1 1.OOE+OO 1.00 23 SXSL4149 CV Yard Soil -West Side, API-7. OL1 1.74E-02 1.OOE+Oo 1.02 lMeani Sigma r~ean ot Total
=I I.SF+Ofl I
7,71F-03 6, 7F.ll 1
1-t I,
I I I.-
I 65.9 %
0 26%
l 0 2i'%
l 33.7 l
1._.....
3 c( 5LC
Table 5 75%
Effective DCGL Calculator for Cs.137 (in pCilg) l 16.98 IpCi/g l 12.74 JpCi/g I
SAtMPLE IIUI.1BER(s)=>ICV YARD SOIL & BOULDER SAMPLES I
5.73 IICig 1 4.30 IlCi U 17.45%
25.0 rniremny TEDE Limit 7.79%
mrrrirpm' Drinkinra Viater MM~V
-1i C-)
F'.'
2I 41 S
6 7
8 9
1 0 1 1 Sample Input (pCi~g. uCi.
25 mremiy TEDE Isotope of Total. etc.)
of Total Limits (pCiig)
Ain-241 0 000%O 9.9 C-14 0 000%
2.0 Co-60 u.0064 0 2113%
3.5 Cs-137 1.000 33 73O%
6.6 Eu-1 52 0 000%
10.1 H-3 1BI499
, j 786%
132 Ni-63 0 0(10%
747 Pu-238 0 000%
1.8 Pu-239 0 000%
1.6 Pu-241 0 000%
86 Sr-90 0.UO77 0 260%
1.2 li Check fot 25 rt emni i A - Allowed pCi~g for 25 mremiy TEDE 0 00 0 00 0 04
-; 73 j
0 00 1 1 17 43 0 00 R
0 00 0 00 0 00 004 16.98 This Sample Mremiy TEDE.
0 00 0 00 0016 3 769 0 00 0 37 i
0 00 0 00q 0 00 0 16 an-241
--14l o-60
-s-137 u-152 1-3 11-63
'u-239
'u-241 Ir-90 2.96E+00 100.000%
4 Maximum Permissible Maximum pCicg Permissible pCitg (25 mremiyJ (4 mremnvy)
To Use This Information.
Sample Input Units Must Be Inl pCilg not % of Total.
I 4
Appendix B-1 (attachment 2-5 to 3-1)
CV YARD SOIL BOULDERS TABLE 3 - REDUCED LISTING - DECAYED - MDA's REMOVED (Exceot Cs-137)
EC S..
N.
LAB No.
L.Olpdon..pcri.lion H-3 Sr-CO Co-O Co.137 ToWl pCil 1
CV~onne; BWXT 0
0102059-01 CVTunnl i rWioMC..poo4e ()1, 8.81E+00 7.81E-01 114ES+03 115423 2 XSL0101174 SubaulIM Seanp,.#2890-). AY-126, 01k 5.25E-01 0 53 3
SNoSLDt2C3 TV eYdn.-818 118184.1 0
V OI 0
BA127O 812 El, Sompn.0 5, 1L 3,98E+00 8.37E-01 4 82 4
Nor100CV.
edy OlO;L184.2 RonhlVYaleSo lAY-127 8I10El, SoMpn 103, OLI 2164E+00 1.22E+00 388 6
NX8hY115 7.1.4no.80028 L1 184-3 8
CVYord Soil AY-128, 804 El Snmpl d2,03i 4.25E+00 1.70E+00 595 6
SXSL122 Tol no.80021 L19W4 NorthCVYordSolAY-128, 7985El0 S 10 2,0)11 2.99E+00 4.51E+00 750 7
SX0IVY130 Teld ln,80522L1 -
NonhCVordSoilW AX-129,803El, S 1mp0#4,1LI 434E+00 218E-02 214E+01 2573 8
I8L(
132 TOd no.0023; 11984.
Noro CVY.rd SoiIAZ.130, SOP1.05, O1 2.59E+00 2.45E+00 S
54 9
SXSL1270 8WXT, 0108055402 AX-129 3-3, Soil, CV S Sd 4
Frsw CV, 00 El, 011
_O 2.14E+01 21 37 10 SXS11281 BWXT, 01080664-1 AX,128. 3-1, Soil, CVTunnel Eas1 Fro CV, 80 El, UL 405E+00 405 11 S3XSL2649 T7.dy.n.73220; 118077.2 AulO Well. A-2. 6to 10 D0aph, OL Cw__
6*
11 060 13 SXSL2871 T.1dyn.-71949; L17838-11 CVAlO.-EaStYardDirPile-Middla, 12 Way Up, 1
6.=41 053 14 5iXS12572 Tolodyn-71948; L17838-10 CV Ar.
8 Ent Yard Dlt Pile - Bo40on (al.. top cnbr), 01a I 9-_E 0 09 15 SXSL3140 BWXT.1030.C03-10401 Ent CV Yard. 8.il Plbo d'onWc l Side(8 De8hb OL; 7.e3E-01 0 78 18 SXSL3142 Telodyne-L20328.3 Soil Pilb CV Ya.d. Threeo Fed on Ea8t Sid., SR 37C 1 6.6
-41 0 67 17 8X5L3145 BWXT,1030403-10411 E88. CV YVnd, Soil Pilb C on East Side (8-DeCth). O I 1.20E+00 i 20 1a SXSL3140 Teledyn0; L203264 Soll Pile CV vIrd. Sh F.X on East Side, SR-37, OL 2*4f-01 0 28 19 SXSL3153 WT.103003-01 E4st CV Yard. SoII Pile a Top 0 Non), 0; i 2.85E-01 0 28 21 SXSL4142 Tel dyne; L22187-2 CV Y d Soil. Went Side, API-I, C0I I 876141 0 88 22 SXSL4143 Tel dyne; 122187-3 CV VgnJ S.o. -Weat Sid., AP1-7, 011I 4A611 0 40 23 800L4140
- 70.
no; 132187-4 CV YVrd Soil -Waa Side, AP1-7, Ol
.597E4-02 3.7?S140 305 TABLE 4- % OF TOTAL CALCULATION i SNEC S.nple No t
1 CV Tunnel C) 2 SX95L99219
(
3 SXsL1083
=
44 SXSL01009 SXSL111S
=
8 SX61122 J
7 SXSL1130
=
LB No.
- BWXT, 0102069801 111074 Tel.pdyn"0018; 19164-1 Te1.dyno400198 19184-2 Telodync80020; 119184C3 Telody.-80021; L19184.4 TO.Idym4o0022; L19184.5 Tnlcdys410023; 19184.8 BWXT, 0108015-02 BWXT, 0108055401 H-3 Sr-90 Co080 C.-137 Total 0.78%
1 a
1 Is 10 14 (16 I
In N
17 I
21 22 SXS31 132 S3XS1270 SXSL1281 SXS12849 sXSL2871 T.
17.2 3-11 8.10 SXSL2872 SXSL3140 BWXT,1030.003-10-01 8
XSL3142 Telidyne,; L20326-3 I
SXSL3145 I
BWXT,10304003.10-01 8 (SXSL3149 Teledyne; L20320.4 SXSL3315 BWXT,1030.003.10-01 83XSI 4142 SX8L4143 SXSL4149 n SiSl - Wear M.oa Sigmal M-an SL ol T00.W, 2 s0m.
MoonW
% of Tla.,
0.007635 0.241 i I
0.009 1 0282 39.20% [ 0.04%
/
0.40%
59.85%
1.03E+00I 7.63E-03 2.27E-02 I 1.40E-00 l 2.47 4137,O~01592%
5L6.
1 /1t12005
- 4. 5 CV Yard Soil & Boulders C OCp
CV YARD SOIL BOULDERS i
0 i
I I
i 1
1 11 I
I II 11 2
2 2
l TABLE 5 - RATIO TO Cs-i37 1 NEC Sanopl No LAB No.,
LCVTuntSd-nnoipfloO H.3 S9,90 Co840 C..137 T0ta1 I
CV Tunnel BWXT. 0102069-01 CV Ton-1I Sedimant Compoe., U0I 7.70E-03 6.85E-04 I 1.OOEnO0 1 01 2
SX95L99219 111074 SUo0050500 OtrIlO #t9 (04)L AY-126, O
_0__
1_ E+0 100 3
&XSL1063 Tslsdy-e40018; L19104-1 Noth CV Y.1W Bl 0AY-127 017 El, Sanpl. #5, SL12 4.76E+00 t.00E+0O 6 76 SXSL1080 Ts.edyoe-019; L10184-2 NOONh CV Ya SWIl AY1-127, 8`10' El, Soo.p4o#3, 01-1 2.1800 1,00E500 3,16 5
SXSL1 lIO T.1ls1Yn,-81020; 1-19184-3 Nonh CVY*,d WOIAY-128, 80401f, SO0mp102, 01-2.50E+00 10E+00 3500 6
XSL1122 T.Idyn..84D21i:11184-4 Norlh CV Y0.0 00lAY0-120 798EI, Oon.pItt2 OL' 6.f4E-01 100E+00 100 7
SXSL1130 T.lady..o0022; L19184.
North CV YrW Soil AX0120, 803 El, Strrp1 N 4,4 OL1 2.03E-01 1 01 E-03 1 OOE+00 1 20 S
&XSL1132 T.Isdyrr.0023;18184-8 North CV Y SEd oiAZ-130, ShF rple# S. 0YOL 1.06E+00 1 00+00 2 0d S XSL1270 BWXT, M0100882 AX129138.33.
Soil, CV SE 014. SPIFra.CV. SW0 It. 01.1 1.00E+00 100o 0
SXSL1281 BWXT, 0180806-01 AX0-128,3.1, WI, CV TurW~t East 0 Prom CV. 80801.l OL 1.00E+00 [
100o I
SX&L2349 T.BWdXo-73220; 118077-2 AI.
Woll. A-,
A-216 to U ptr, O; I 1OE40+
I 00 3
XSL2871 T71dynm,71949; L17838.11 CV At. oE*.t Yrd Dirt PiMlddelM 1 1 0Way Up, OL 1068400 100 14
&XSL2S72 T.Idyn-.71948; L1738-1S CV Al"- Esat Yd Dirt P-BctorlM (SWLt.P atr). OL I 1.00-00 I 100 S
SXSL3140 BWXT,10304-03.10.d1 East CV Yard, S00 Pil C 0
on Wfltt SLt (tr Dept), OL I 1.00E+00 1 00 6
SXSL3142 Teledyne; L2032z6 r0.1 PR., CV Yard, Th-ee Feeron
-Est Side. 0R437. O 1 1.004+40 100 7
SXSL3145 BWXT,1030 003.10.01 Est CV YV.d, Soll PIL C 3'on Ent Slde J8O Doe), 0Q1 1OOE+OO 10i 8
OXSL3149 Teladyna; L20326.4 MI P1.F, CV YaLd. Si.0est 00 East Side, SR-37. OL 1.0061144 1 D0 8
SX5L3153 BWXT.1030403-10-01 E.6tCV Yard. &oii Pk r Top(T D(0r h). Ol 1.00E+00 1 oo I
&XSL4142 Tladyre.; L22187.2 CV Yard Sol-WetltSide. AP1,7,0 1.0440 100 2
0XL-43 Tlaye
.12217 CV Ya14d11Soil
- 01W4SW, A081.7. O11
- 1.
4+00 1 00 3
SXSL4143 Tledyn,; L22187-4 CV Y14 nl&o - WOt Sild., API-, QLl 1.67-E02 1.008140 1 02 Mean-1+890991 02007699 0 005808 1
2.90 Sigr-0 Sloa 1001 ToIOI.
2 SVgn.a Me.-~
100 f T.Wc
- 1. A5 0 000 0 000 I
+
A A
I V__
I 65 11%- I U.
27%o U,0.20% I 34+40% 10U.0U0%
520E+00o1 7,70E-03 1 2 3 0022 3
83,47%
0.12%
0,37%
16.04Yo 100.00%
KEY 10 Yell. B..k.r.und = Pouilve Re.Irt Iarple No-ln-pr-sn1nlt-ve or Locked any Po-lIire lnlorma-ton t/1112005 0-5 CV Yard Soil & Boulders C
ciY7
I m
Effective DCGL Calculator for Cs-137 (in pCi/g)
SAMPLE NUMBERWs}=ICV YARD SOIL & BOULDER SAMPLES - Decaved tn 1211/-51 75%
REENNMIE 1
16.70 IpCi/9 1 12.63 1 pCi/9 I
167 jpigI 1.3 I~~
I 17.39%
25.0 I rc /
FS
.E iX 4SE mrem/y TEDE Limit I- - -h nAinGtin W--m.- InII-m I
5.75 IpCi/9 1 4.31 I pCi/g I
7.104 1
2 3
4 5
6 7
8 9
10 11 Sample Input IpCilg, uCi, % of 25 mremly TEDE Isotope Total, etc.)
% of Total Limits (pClIg)
Am-241 0.000%
9.9 C-14 0.000%
2.0 Co-60 0.0058 0.200%
3.5 Cs-137 1t0000 34.429%
6.6 Eu-152 0.000%
10.1 H-3 1.8910 65.106%
132 Ni-63 0.000%
747 Pu-238 0.000%
1.8 Pu-239 0.000%
1.6 Pu-241 0.000%
86 Sr-90 0.0077 0.265%
1.2 vl Check for 25 mrem/y A -Allowed pCUg for 25 mremly TEDE 0.00 0.00 0.03 5.75 0.00 10.87 0.00 0.00 0.00 0.00 0.04 This Sample To Use ThhEDEuin Smi Inu0nh.
ut eI p0 o
%.0 IfTb km-241 0-14 00-60 Os-137 Eu-152 4-3 41-63 Plu-238 5u-239 Plu-241 5r-90 2.90E+00 I 100.000%
16.70 Maximum Permissible pCi/g 1
(26 mremly)
Maximum Permissible pClg (4 mremly)
L
% _fToa i
iI (\\)
i I
C 0 00
Effective DCGL Calculator for Cs-1 37 (dpm/100 cmA2)
I I
44317 ldpm/100 cmA2 I 33238 ldpml100 cmA2 25.0 mrem/y TEDE Limit 26527 dpm/100 cmA2 l
19895 dpm/100 cmA2 SAMPLE NO(s)=l kV YARD Soil & Boulder Samples 12-15-04 I
In 175%
Sample Input (pCi/g, uCi, etc.)
Individual Limits Allowed dpm/100 Isotope Beta dpm/100 cmA2 Alpha dpm/100 cmA2
% of Total (dpm/100 cmA2) cmA2 mrern/y TEDE I
..)
..O IM
__Am-241 0.000%
27 0,00 0.00 N/A 0.00 Am-241 2C-14 0.000%
3,700,000 0.00 0.00 0.00 N/A C-14 3 Co-60 4.OOE-01 0.400%
7,100 177.29 0.62 177.29 N/A Co-60 4-
_/A Eu-152 0.000%
13,000 0.00 0.00 0.00 NIA Eu-152 H-3 3.92E+01 39.204%
120,000,000 17374.09 0.00 Not Detectable NiA H-3 7 Ni-63 0.000%
1,800,000 0.00 0.00 Not Detectable WNA Ni-63 8 Pu-238 0.000%° 30 0.00 0.00 N/A 0.00 Pu-238 9 Pu-239 I
0.000%
28 0.00 0.00 I
WA 0.00 Pu-239 1
I 0
I Pu-241 Sr-90 5.40E-01 0.000%
0.540%
100. 000%
880 8,700 0.00 239.34 0.00 0.69 Not Detectable A.A N/A Pu-241 Sr-90 239.34 N/A t
I I*
I 44317 25.0 26943 0
I a
a Maximum Permissible dpm/100 cmA2 Co(4
i 2-350 INS I KR UMI N 1 AND) PROBF[ IF C11 IIN(CY ( fHART 1 ?1 03-05S Remv e 1 619 G8 & 1 17566 Add 129407 I
Inst.+
(-III Dui AP F)
Prohc I Cal IDc cIo1 K iii 4V I
16 Oil 9
ATTACHMENT 3
L-CV10
Appendix B-1 (attachment 4-1 to 5-4)
MicroShield v5.05 (5.05-00121)
GPU Nuclear Page
Date:
By:
Checked:
Case
Title:
Soil
==
Description:==
Soil Density 1.6 glcc, 6" Deep Cylinder @ 5" from Surface Y Geometry: 8 - Cylinder Volume - End Shields Height Radius
- 1 x
O crr 0.O ir Source Dimensions 15.24 cm 28.21 cm Dose Points Y
27.94 cm 11.0 in Shields Dimension Mat.
2325.091 in3 Coni A
6.0 in 11.1 in z
0 cm 0.0 in Density 1.6 0.00122 Shield Name Source Air Gap erial crete ir Nuclide Ba-137m Cs-1 37 Grouping curies 5.7670e-008 6.0962e-008 Source Input Method: Actual Photon Energies becquerels yCicm3 2.1338e+003 1.5136e-006 2.2556e+003 1.6000e-006 Bq/cm3 5.6003e-002 5.9200e-002 Buildup The material reference is : Source Integration Parameters Radial Circumferential Y Direction (axial) 40 40 40 Energy MeV 0.0318 0.0322 0.0364 0.6616 Activity photons/sec 4.418e+01 8.150e+01 2.966e+01 1.920e+03 Fluence Rate MeV/cm2/sec No Buildup 6.794e-06 1.306e-05 7.236e-06 6.179e-02 Results Fluence Rate MeV/cm 2/sec With Buildup 8.222e-06 I1.591e-05 9.448e-06 1.091e-01 Exposure Rate mR/hr No Buildup 5.659e-08 1.051 e-07 4.11 1e-08 1.198e-04 Exposure Rate mR/hr With Buildup 6.849e-08 1.280e-07 5.368e-08 2.115e-04 TOTALS:
2.075e+03 6.182e-02 1.091e-01 1.200e-04 2.118e-04 ATTACRAENT L4
--- ~=
Nal Scan MDC Calculation-CV Soil.mcd Nal Scan MDC Calculation b ::=-200 p := 0.5 HSd := 56.42
=SR
- 25 d :=1.38
.~..I Conv :-:209.771 M. :-oupt:- -. -- 1 4 MS,,,-,output :,2.115 HS d
= 2.257 SR Observation Interval (seconds) 0 i:HS d SR Observation Interval (seconds)
(b-O i),
bi:=6 60 MDCR i :=
'd-i)
\\60 MDCR -j 100.629 net counts per minute MDC
- =MDCRi suCRey MDRsurveyor:
r-NM CR..1.42.311 MDC surveyor = 1431 MDCR surveyor net counts per minute MDC scan :
Conv MDER MDER = 0.678
[tR/h MS output 1 10 MDC scan 3.208 pCi/g
. sca 111212005 4 of 5 1/1212005 4 of 5 ATTACHMENT--
Nal Scan MDC Calculation-CV Trench.mcd where:
b = background in counts per minute b= background counts in observation interval Conv-Nal manufacturers reported response to energy of contaminant (cpm/uRlh) d = index of sensitivity (Table 6 5 MARSSIM), 1. 38 = 95% of correct detection's. 606 false positives HSd = hot spot diameter (in centimeters)
MDCSC n = Minimum Detectable Concentration for scanning (pCi/g)
MDCRj = Minimum Detectable Count Rate (ncpm)
MDCRntIo, = MDCR, corrected by human performancefactor (ncpm)
MDER = Minimum Detectable Exposure Rate (uRlh)
MSO,,p, = MicroShield output exposure rate for I pCf/g of contaminant (mRlh) 0j = obervation Interval (seconds) p = human performancefactor SR = scan rate in centimeters per second NOTE This is an example of an MDCscan calculation that is valid for a specific set of site conditions including the computer model used, soil density, soil moisture content, surveyor efficiency, ground cover, soil background and other variables that influence the calculated results.
However, this and similar scan MDC's have been deemed valid for survey planning.
2125/2005 5 of 5 212512005 5 of 5 ATTAO TE N 1 -
Site Report Site Summary Site Name:
Planner(s):
SY OPEN LAND AREA - Class 1 BHB Contaminant Summary NOTE:
Surface soil DCGLw units are pCi/g.
Building surface DCGLw units are dpmnl 00 cm2.
Contaminant Cs-1 37 Type Surface Soil DCGLw 4.31 Screening Value Used?
No Area (ml) 10,000 2,500 400 100 25 1
Area Factor 1
1.3 1.4 1.6 2
12.4 rnunxec 8,4 n n
%.'JMrj4a vI.U.U ATA2M)2005 ATTACHM~ENT-
-,L Page 1
%9 Surface Soil Survey Plan Survey Plan Summary Site:
SY OPEN LAND AREA - Class 1 Planner(s):
BHB Survey Unit Name:
PENELEC Switch Yard - Class 1 Area Comments:
Survey Unit = PS4-1 Area (mi2):
1,612 Classification Selected Test:
Sign Estimated Sigma (pCi/g):
DCGL (pCi/g):
4.31 Sample Size (N):
LBGR (pCi/g):
3.5 Estimated Conc. (pCi/g):
Alpha:
0.050 Estimated Power:
Beta:
0.050 EMC Sample Size (N):
Scanning Instrumentation:
Nal 2" by 2" (w) 1 0.47 16 0.9 1
16 Prospective Power Curve I...
5* 0.9
_ 0.8 0.7 J-t 0.6 X0.5 in,~.4 0.3 i0.2 E 0.1 C-O
=
F___
=
I I
I11
-I
-I I-I
-1 I___I III_
_I 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Soil Concentratiex pCi1g), including background DCGL Estimated Power 1-beta 5.0 Power LBGR COMPASS v1.0.0 1/12/2005 ATT7CHMENT___.
Z-Page 1 cfu
Surface Soil Survey Plan Contaminant Summary DCGLw Inferred Modified DCGLw Scan MDC Contaminant (pCig)
Contaminant Ratio (pCUg)
(pCIlg)
Cs-1 37 4.31 NIA N/A NIA 3.2 Contaminant Cs-1 37 Survey Unit Estimate (Mean +/- 1-Sigma)
(pC g) 0.91 +/- 0.47 Reference Area Estimate (Mean +/- I-Sigma)
(pCilg) 0.28 +/- 0.39 UUMAbbS v1.0.0 111212005 Page 2 ATTACHMENT
I=aM.MT=
!IvT..I--z-.z 4 I N
F,., 7 I I I
'M I
.1 1.1 -
. i..
-1. -
I 1,.
I I
I I
I I - -
AL7A
A.Jzi
M
.44*
*1 r
Ee.Qted Measurernent Comparison (EE Enter in a description for the scanning instr; measured contaminant Click the CALCUL results. All entered and calculated scan M
.RnnnrlIncnlmnitinnnoor-intinn-Mfl%
(j~ Noadtoalsmle rerqurdbeasete cul No
.i Noitinal samples are requted because the actual
-scan MDC is less I
than the DCGLw.
l_
OK
- 1
. z.sY I.-
0 Contaminant -
I -,Scan MDC l I Cs-137 3.2 Enter Scan MDC Scan MDC:
<S-.E i NUREG-1507.
Statistical Design Hot Spot Design N: l 16 Actual Scan MDCl 3.2 Bounded Area (m): l 1 00.i8 AreaFactor N/A Area Factor. l 1.6 BoundedArea(m?: l N/A DCGLw. l 4.31 Post-EMCN: l 16
.Scan MDC Required: l N/A F Enable Training Card Help.. --
v G
1BAK NET ATTACHMENT
-
'-J,
I :
Appendix B-1 (attachment 6-1 to 1 0-1 )
PENELEC Class 1 Soil Area
-1,600 Square Meters 14 113 390"
_T 13 14 12>
73 390" 338" 281" 410" jI A
I-
\\9 zw 0
Item No. 1 Back 10 End/
11 22 Front Face Fn 7
4 Top Item No. 2 End,/-7-,-2rn-1 Front Face Switch Yard Concrete Block Walls ATTACHMENT 7 I
Switch Yard Unpainted Concrete Item No. 9 10 I$
E2' 51 14 di
]
Item No. 7 I
I iL 150v 11 T
1 20' 12 u
-v Item No. 10e I
V9 Item No. 10a Item No. 18 ATTACHMENT
Cs-1 37 Efficiency Loss with Distance From Source I
1.0 C0 0CZ L._
0 C
4-)
w 0.8 0.6 0.4 I
Data: DatalLoss Model: ExpDecayl ChiA2 = 0.00018 yO 0.03536 XO 0
to Al 1.00693 t1 1.61706
+/-0.02118
+/- 0.01 809
+/-0.07558
.I, _1 _._ _ ` -. -- - - - -.
I Fit = yO+A1 e A(_(xxO)It1)
I jl1
,.I I I
0.2 I
0.0 0
0.5 1.0 1.5 S
I 2.0 2.5 3.0 Inches from 150 cm2 Source AC4M NT
' 1-
Exhibit I Survey Unit Inhnectlon Check Shet pgC IU"'IGJAL SEC7i N
t-3.UVY UNiTINSPE gT t
RiPtiON :
Survey Unit # r PS3 Survey Unit Location l Penelec Switchyard Date 11/15/
l TIme l1400 Inspection Team Members D.Sarge
- .;..Ss YL'Nli NiECTioN VSCoiE Inspection Requirements (Check the appropriate Yes/No answer.)
Yes No NIA I.
Have suff1liert surveys (i.e., post remedietlon. characterization, etc.) been obtained for the survey unt7 X
- 2.
Do the surveys (from Cuestion 1) demonstrate that the survey unit will most lkeiV pass the FCC?
X 3
Ia tha physical work (i.e.. rernedlatlon & housexeeping) in or around the survey unit compleIe7 v
4 Have all tools, non-permanent eCuipment, and material not neoded to perform thre FSS been rermoved?
Xi
_t I
5 Are the survey surf aces relatively free of loose debris (Ie., dirn concrete dust, metal filings, etc.)?
X
- 6.
Are the survey surfaces relatively free of liquids (i.e., water. moisture, o, etc,)?
X 7
Are the =rvey surfaces free of all paint, which has the potential to shield radiation?
X
- e.
Have the Surface Messurement Test Areas (SMTA) been eclablished? (Reotr to Exhibit 2 for instructions.)
X a
Have the Surface Measurement Tect Areas (SMTA) data been cIlected (Reer to Exhibh 2 for instru;:lSnz.)
X
- 10. Are the survey surfaces earily accessbab7 (No scalfflemn, high teach. etc. is nteded to perform the FSS)
X l
- 11. Is liChting adequate to perform the FSS7 X
- . t! the ere3 Industnelly safe to perform the FSS7 (Evaluate potential fall & trip hazards, confined spaces. etc.)
j X
- 13. Have photographs been taken showing the overall condition of the area7 X
- 14. Have all un".tisfactcry conC.tion3 been resolved7 X
NOTE: IfH No aftser is obtained above, the inspector should immediately correct the problem or initiate corrective actions through the responsible ste depanment, as applicable. Document actions taken unCdor justifiction3 I thc Cornrner ts ses In below. Attach dditional aheel3 &o necesaary.
Comments.
Response to Question A: Switrhyard has old equipment, debri3, and building material laying about. Notified L.
Shamenek.
Response to QuestIon 5: Various pads and rail trough hold loose sediment. Notified L. Snamenek.
Response to Quastion 6. Freestanding water is present in the rail trough. Notified L. Shamenek.
Response to Question 12: Hign voltage is present in Switchyard. All personnel ^,hali be briefed of hazards prior to entrv.
- urvey Unit inspector (pnnt'sign) 0 Serge 1 j Date j 111151i4 Survey Designer (pintasign) i
/ T.
Date i1ItIlDS ATMACHMENT q
-i WrlI rvIzi 0WL LI.
T s
- s A
l, r [
tI
42l
'a iEXHISIT3 u
^Surface measurement Test Area (SNMTA) Data Sheet SECTioN iD£5CRIPT1ON SMTA Number SMTA-PS3-1 Survey Unit Number PS3 SMTA Location Penelec Switchyard - South pads Survey Unit Inspector I D. Sarge Date 11/15/04 Time 1400
..., 'EEXION 2 -BCALtr'R lINZDRMATION &¢PERSoNNEL INVOLVED Caliper Manufacturer Caliper Model Number Caliper Serial Number Calibration Due Date (as applicable)
Rad Con Technician ID. Serge f
'/..
Date 11)15104 Time 1400 Survey Unit Inspector Approval D. Serge Date 11(15/04
- ;-N :,-, -...EA..,SE~o3#UREZJ RESULTS.................
SMTA Grid Map & Measurement Results in Units of mm (insert Results in White BlocKs Below) e:1 7
- 1.
1 2t
- 1;
."Ci.
-'f l
1S
'-2D I2.
3.:
i§:
1t 2,i 20f 32S 4
1 1
22 -
34 Averag es u.1 me mm Average Messurement - mm Comments All South pads indicate moderate to severe degradation on tops and sides.
Ground/electrical feed conduit pipes area Integrated Into pad. Diameters range from Y2 to 4 inches.
Metal footings are present on many of the south pads.
Eleven depth readings were obtained on pad #5 with a tape measure.
Results ranged from 1.5 to 2.5 inches.
Additional Measurements Required I
II f
S i
I ATTACHMENT 9
N~ODvfd A11113V.:2 0--ZN i T%77 7-E'.60 V006/51i-tl
RG-i rIEXHIBIr 3 Surface Measurement Tect Area (SN:TA) Doa Sheea r
.S EFT1ON 1 -.
SMTA Number SMTA-PS3-2 S
Survey Unit Number PS3 SMTA Location Penelec Switchyard - South Center pad Survey Unit Inspector D. Serge Date 11115104 Time 1420 SECTION 2 -CALtPER INFORMATION PER$oNNEL INVOLVED Caliper Manufacturer Caliper Model Number Caliper Serial Number Calibration Due Date (as applicable)
Rad Con Technician
). Serge
/
Date l 1115104 Time 1420 Survey Unit Inspector Approval DSere Date 11/15104
,.SECTION 3.-EASUFEMENTIREtSULTS SMTA Grid Map & Measurement Results in Units of mm (lnsert Results In White Blocks Below)
Comments 1
n 7;
1i
- 1
- i.
Pad indicates moderate to severe degradation on tops and sides.
'i
- 1.
2
-32 Ground/electrical feed conduit pipes area integrated Into pad. Diameters range from 'A to 4 inches.
Ton depth readings were obtained on pad with a tape measure.
.4:
1 22 '
21' 34 Results ranged from 1.5 to 3.5 inches.
- .;^
12 18:
'24
-30 34
+/- Average Measurement mm Additional Measurements Required
-I ATTACHMENT NT_
NQ:KJV6i A1I-11OV-oa LIEU5E9PI8 ZE :S80 r,10Z;/131/T E
7; d
SWITCH YARD SAMPLES Sample No.
Cs-137 (pCi/g)
Co-60 (pCI/g)
Location Type SXSL8075 1.5 0.16 BE-137 AP1 SXSL8076 1.3 0.14 BE-137 AP2 SXSL8077 1.2 0.15 BE-137 AP3 SXSL8078 2.1 0.11 BC-129 AP1 SXSL8079 1.2 0.14 BC-129 AP2 SXSL8080 1.3 0.12 BC-129 AP3 SXSD8827 1.2 0.09 SAN S SUMP FP3 SXSD8823 1.1 0.12 S/W TRENCH FP2 SXSD8829 0.85 0.12 SMN N SUMP FP1 SXSD8830 1.3 0.1 S/W N SUMP FP1 QC SXSL8831 0.33 0.11 S/
SP-1 SXSL8832 0.51 0.09 SY SP-2 SXSL8833 0.67 0.07 S/Y SP-3 SXSL8834 0.25 0.08 S/
SP-4 SXSL8835 0.69 0.08 SN SP-5 SXSL8836 0.89 0.11 Sty SP-6 SXSL8837 0.29 0.08 SY SP-7 SXSL8838 0.56 0.09 SY SP-8 SXSL8839 0.66 0.07 SY SP-9 SXSL8840 0.54 0.1 S/Y SP-10 SXSL8841 0.95 0.11 SN SP-1 1 SXSL8842 1.3 0.1 SN SP-12 SXSL8843 0.23 0.09 SN SP-13 Average=>
0.91 0.11 STDEV=>
0.47 002 SWITCH YARD SAMPLES Sample No. ~s-137 (pCi/g Co-60 (pCi/g)
Location Type SXCF8122 0.14 0.14 CONCRETE SP-1 SXCF8123 0.18 0.19 CONCRETE SP-1QC SXCF8124 0.42 0.2 CONCRETE SP-2 SXCF8125 0.34 0.13 CONCRETE SP-3 Average=>
0.27 0.17 STDEV=>
0.13 0.04 ATTA'CHVENT 2.
c.I3
Appendix B-1 (attachment 11-1 to 12-1)
BACKGROUNDS FOR CONCRETE BLOCK LS6 126188 DH5959 SR-1 38 BHB No.
Location Date Time Detector Counts Count Time (sec) Mode Designator Shielded Unshielded 2
CONC FP1S 6/15/2004 8:40 1
244 60 SCL Shielded 272 3
CONC FP1U 6/15/2004 8:42 1
272 60 SCL Unshielded 244 4
CONC FP2S 6/15/2004 8:44 1
207 60 SCL Shielded 319 5
CONC FP2U 6/15/2004 8:45 1
319 60 SCL Unshielded 207 6
CONC FP3S 6/15/2004 8:58 1
281 60 SCL Shielded 337 7
CONC FP3U 6/15/2004 9:00 1
337 60 SCL Unshielded p 281 8
CONC FP4S 6/1512004 9:01 1
264 60 SCL Shielded 3
314 9
CONC FP4U 6/15/2004 9:03 1
314 60 SCL Unshielded _
264 10 CONC FP5S 6/15/2004 9:04 1
267 60 SCL Shielded 348 11 CONC FP5U 6/15/2004 9:06 1
348 60 SCL Unshielded _
267 12 CONC FP6S 6/15/2004 9:09 1
224 60 SCL Shielded 366 13 CONC FP6U 6/15/2004 9:10 1
366 60 SCL Unshielded 224 14 CONC FP7S 6/15/2004 9:12 1
268 60 SCL Shielded 388 15 CONC FP7U 6/15/2004 9:13 1
388 60 SCL Unshielded 268 16 CONC FP8S 6/15/2004 9:15 1
252 60 SCL Shielded 1 248 17 CONC FP8U 6/15/2004 9:16 1
248 60 SCL Unshielded 252 18 CONC FP9S 6/15/2004 9:18 1
266 60 SCL Shielded 337 19 CONC FP9U 6/15/2004 9:20 1
337 60 SCL Unshielded 266 20 CONC FP10S 6/15/2004 9:21 1
258 60 SCL Shielded 347 21 CONC FP10U 6/15/2004 9:22 1
347 60 SCL Unshielded 258 22 CONC FPI1S 6/15/2004 9:24 1
256 60 SCL Shielded 328 23 CONC FP11U 6/15/2004 9:25 1
328 60 SCL Unshielded 256 24 CONC FP12S 6/15/2004 10:15 1
270 60 SCL Shielded 381 25 CONC FP12U 6/15/2004 10:16 1
381 60 SCL Unshielded 270 26 CONC FP13S 6/15/2004 10:17 1
232 60 SCL Shielded 363 27 CONC FP13U 6/15/2004 10:18 1
363 60 SCL Unshielded 232 28 CONC FP14S 6/15/2004 10:20 1
279 60 SCL Shielded 13 368 29 CONC FP14U 6/15/2004 10:21 1
368 60 SCL Unshielded 279 30 CONC FP15S 6/15/2004 10:22 1
270 60 SCL Shielded 334 31 CONC FP15U 6/15/2004 10:24 1
334 60 SCL Unshielded p 270 32 CONC FP16S 6/15/2004 10:25 1
293 60 SCL Shielded 371 33 CONC FP16U 6/15/2004 10:26 1
371 60 SCL Unshielded p 293 34 CONC FP17S 6/15/2004 10:29 1
240 60 SCL Shielded 344 35 CONC FP17U 6/15/2004 10:30 1
344 60 SCL Unshielded P 240 36 CONC FP18S 6/15/2004 10:31 1
267 60 SCL Shielded 355 37 CONC FP18U 6/15/2004 10:33 1
355 60 SCL Unshielded _
267 38 CONC FP19S 6/15/2004 10:34 1
224 60 SCL Shielded 294 39 CONC FP19U 6/15/2004 10:35 1
294 60 SCL Unshielded _
224 40 CONC FP20S 6/15/2004 10:36 1
333 60 SCL Shielded 396 41 CONC FP20U 6/15/2004 10:38 1
396 60 SCL Unshielded 3 333 Minimum 2.07E+02 2.48E+02 Maximum >
3.33E+02 3.96E+02 Median 2.65E+02 3.46E+02 Mean 2.60E+02 3.41 E+02 Siqma 2.77E+01 3.77E+01 f',~
,,irENI 12 t- -- 1-.
C I 1
Williamsburg Concrete Background Measurements 37122N21 Instrument95348 RLM6220 Time Detector Counts CountTime(sec)
Mode Designator FSS-001 BHB CACA OMA H
OP ;
YIAP 0
BKGNU 1
Source Check 2
BKGND 4A Surce (.herk 1/4/20U2 8:52 1
1/4/2002 9:07 1
1/4/2002 10:05 2
11412002 10:39 2
1.79E+05 4.40E+01 1 51F+05 1 0Uu 60 1800 60
'DUL InIal Background p
SCL Source p
SCL Inital Background ca concreteCF(cvm),
rLO.OOE4OO SCL Source a
Shielded Unshielded 15 CON AlS 1/4/2002 13:00 1
2.78E+02 60 SCL Shielded 16 CON A1U 114/2002 13:02 1
3.88E+02 60 SCL Unshielded B
17 CON A2S 1/4/2002 13:20 1
2.39E+02 60 SCL Shielded 18 CON A2U 1/412002 13:21 1
2.22E+02 60 SCL Unshielded 13 19 CON A3S 1/412002 13:28 1
2.39E+02 60 SCL Shielded 20 CON A3U 1/4/2002 13:30 1
2.62E+02 60 SCL Unshielded 21 CON A4S 1/4/2002 13:36 1
2.45E+02 60 SCL Shielded 22 CON A4U 1/4/2002 13:38 1
2.71E+02 60 SCL Unshielded 23 CON ASS 1/4/2002 13:58 1
2.00E+02 60 SCL Shielded 24 CON A5U 1/4/2002 14:00 1
2.82E+02 60 SCL Unshielded JP 25 CON A6S 1/4/2002 14:03 1
1.84E+02 60 SCL Shielded 26 CON A6U 1/4/2002 14:05 1
3.1OE+02 60 SCL Unshielded B
27 CON A7S 1/4/2002 14:09 1
1.98E+02 60 SCL Shielded B
28 CON A7U 1/4/2002 14:10 1
3.15E+02 60 SCL Unshielded B
29 CON A8S 114/2002 14:19 1
2.34E+02 60 SCL Shielded 30 CON A8S 1/4/2002 14:22 1
2.31 E+02 60 SCL Shielded 31 CON A8U 1/4/2002 14:24 1
2.88E+02 60 SCL Unshielded 32 CON A9S 1/4/2002 14:31 1
2.65E+02 60 SCL Shielded 33 CON A9U 1/4/2002 14:33 1
2.89E+02 60 SCL Unshielded Bi 34 CON AlOS 11412002 14:42 1
2.46E+02 60 SCL Shielded B
35 CON A10U 1/412002 14:43 1
3.16E+02 60 SCL Unshielded P
36 CONA11S 1/412002 15:10 1
1.95E+02 60 SCL Shielded 37 CON A11U 1/4/2002 15:12 1
2.94E+02 60 SCL Unshielded B
38 CON A12S 1/4/2002 15:13 1
2.21 E+02 60 SCL Shielded 39 CON A12U 114/2002 15:14 1
2.84E+02 60 SCL Unshielded 40 CON A13S 1/4/2002 15:23 1
1.74E+02 60 SCL Shielded 41 CON A13U 114/2002 15:24 1
2.94E+02 60 SCL Unshielded 13 42 CONA14S 1/4/2002 15:25 1
1.96E+02 60 SCL Shielded 43 CON A14U 1/4/2002 15:26 1
3.33E+02 60 SCL Unshielded B
44 CON A15S 1/4/2002 15:28 1
2.16E+02 60 SCL Shielded 45 CON A15U 1/4/2002 15:29 1
3.45E+02 60 SCL Unshielded P
46 CONA16S 1/4/2002 15:30 1
1.83E+02 60 SCL Shielded 47 CON A16U 1/4/2002 15:31 1
3.13E+02 60 SCL Unshielded 48 CON A17S 1/4/2002 15:33 1
1.82E+02 60 SCL Shielded 49 CON A17U 1/4/2002 15:34 1
3.22E+02 60 SCL Unshielded 50 CON A18S 1/4/2002 15:35 1
1.84E+02 60 SCL Shielded 51 CON A18U 1/4/2002 15:36 1
3.24E+02 60 SCL Unshielded B
52 CON A19S 1/4/2002 15:37 1
1.91 E+02 60 SCL Shielded 53 CON A19U 1/4/2002 15:39 1
3.07E+02 60 SCL Unshielded B
54 CON A20S 1/4/2002 15:40 1
1.94E+02 60 SCL Shielded 55 CON A20U 1/412002 15:41 1
3.33E+02 60 SCL Unshielded 56 CON A21S 1/4/2002 15:57 1
2.23E+02 60 SCL Shielded 57 CON A21U 1/4/2002 15:58 1
2.92E+02 60 SCL Unshielded 58 CON A22S 1/4/2002 15:59 1
1.72E+02 60 SCL Shielded 59 CON A22U 1/4/2002 16:00 1
2.80E+02 60 SCL Unshielded B
60 CON A23S 1/4/2002 16:01 1
1.94E+02 60 SCL Shielded 61 CON A23U 1/4/2002 16:02 1
3.29E+02 60 SCL Unshielded 62 CON A24S 1/4/2002 16:04 1
1.87E+02 60 SCL Shielded 63 CON A24U 1/4/2002 16:05 1
3.48E+02 60 SCL Unshielded 64 CON A25S 1/4/2002 16:06 1
2.07E+02 60 SCL Shielded 65 CON A25U 1/4/2002 16:07 1
3.72E+02 60 SCL Unshielded 66 CON A26S 1/4/2002 16:09 1
2.09E+02 60 SCL Shielded 67 CON A26U 1/4/2002 16:10 1
3.26E+02 60 SCL Unshielded 68 CON A27S 1/4/2002 16:11 1
2.07E+02 60 SCL Shielded 3
69 CON A27U 1/4/2002 16:12 1
3.30E+02 60 SCL Unshielded 70 CON A28S 1/4/2002 16:14 1
2.30E+02 60 SCL Shielded 71 CON A28U 1/4/2002 16:15 1
3.06E+02 60 SCL Unshielded 3
72 CON A29S 1/4/2002 16:20 1
2.13E+02 60 SCL Shielded P
73 CON A29U 1/4/2002 16:21 1
2.58E+02 60 SCL Unshielded ft 74 CON A30S 1/4/2002 16:24 1
2.33E+02 60 SCL Shielded 3
75 CON A30U 1/4/2002 16:25 1
2.89E+02 60 SCL Unshielded J
76 CON A31S 1/4/2002 16:28 1
1.84E+02 60 SCL Shielded 77 CON A31U 1/4/2002 16:29 1
2.63E+02 60 SCL Unshielded Source Check 1/4/2002 17:27 1
1.70E+05 60 SCL 2.78E+02 3.88E+02 2.39E+02 2.22E+02 2.39E+02 2.62E+02 2.45E+02 2.71 E+02 2.OOE+02 2.82E+02 1.84E+02 3.1OE+02 1.98E+02 3.15E+02 2.34E+02 2.31 E+02 2.88E+02 2.65E+02 2.89E+02 2.46E+02 3.16E+02 1.95E+02 2.94E+02 2.21 E+02 2.84E+02 1.74E+02 2.94E+02 1.96E+02 3.33E+02 2.16E+02 3.45E+02 1.83E+02 3.13E+02 1.82E+02 3.22E+02 1.84E+02 3.24E+02 1.91 E+02 3.07E+02 1.94E+02 3.33E+02 2.23E+02 2.92E+02 1.72E+02 2.80E+02 1.94E+02 3.29E+02 1.87E+02 3.48E+02 2.07E+02 3.72E+02 2.09E+02 3.26E+02 2.07E+02 3.30E+02 2.30E+02 3.06E+02 2.13E+02 2.58E+02 2.33E+02 2.89E+02 1.84E+02 2.63E+02 z1.72E+02 2.22E+02 1 2.78E+02 3.88E+02
> 2.11E+02 I 3.06E+02 Minimum -
Maximum Mean -
Cin- -
9 RQrF.&
I 1 Ac6F-ni IA 2
Switch Yard Concrete Measurements No. Location 111112004 Counts Count Time (sec) Mode Designator SR-0174 FSS-1131 BH4B Conc,'ete CF(corn) -
.OEO Shielded Unshielded 1
FP# 1 Shielded 2.36E+02 60 SCL Shielded 2.36E+02 2
FP# 1 Unshielded 3.95E+02 60 SCL Unshielded 3.95E+02 3
FP# 2 Shielded 2.41 E+02 60 SCL Shielded 2.41 E+02 4
FP# 2 Unshielded 5.64E+02 60 SCL Unshielded 5.64E+02 5
FP# 3 Shielded 2.45E+02 60 SCL Shielded 2.45E+02_____
6 FP# 3 Unshielded 4.14E+02 60 SCL Unshielded 4.14E+02 7
FP# 4 Shielded 2.75E+02 60 SCL Shielded 2.75E+021 8
FP# 4 Unshielded 4.67E+02 60 SCL Unshielded 4.67E+02 9
FP# 5 Shielded 2.08E+02 60 SCL Shielded 2.08E+02 10 FP# 5 Unshielded 4.42E+02 60 SCL Unshielded 4.42E+02 1 1 FP# 6 Shielded 2.30E+02 60 SCL Shielded 2.30E+02 1 2 FP# 6 Unshielded 6.1I1E+02 60 SCL Unshielded 6.1 1E+02 1 3 FP# 7 Shielded 2.57E+02 60 SCL Shielded 2.57E+02 14 FP# 7 Unshielded 6,04E+02 60 SCL Unshielded W6.04E+02 1 5 FP# 8 Shielded 2.30E+02 60 SCL Shielded 1
2.30E+02 1 6 FP# 8 Unshielded 5.99E+02 60 SCL Unshielded 013 5.99E+02 1 7 FP# 9 Shielded 2.63E+02 60 SCL Shielded 2.63E+02 18 FP# 9 Unshielded 1.08E+03 60 SCL Unshele 1.08E+03 1 9 FP# 10 Shielded 2.52E+02 60 SCL Shielded 2.52E+02 20 FP# 10 Unshielded 1,03E.03 60 SCL Unshielded 1.03E+03 21 FP# 1 1 Shielded 2.27E+02 60 SCL Shielded 2.27E+02 22 FP# 11 Unshielded 5.67E+02 60 SCL Unshielded 5.67E+02 23 FP# 12 Shielded 2.46E+02 60 SOL Shielded 32,46E+02 24 FP# 12 Unshielded 6.05E+02 60 SCL Unshielded 6.05E+02 25 FP# 13 Shielded 3.07E+02 60 SCL Shielded 3.07E+02 26 FP# 13 Unshielded 7.02E+02 60 SCL Unshielded PI____
7.02E+02 27 FP# 14 Shielded 2.42E+02 60 SCL Shielded 2.42E+02 28 FP# 14 Unshielded 6.49E+02 60 SCL Unshielded 6.49E+02 29 FP# 15 Shielded 2.47E+02 60 SCL Shielded 32.47E+02 30 FP# 15 Unshielded 1.05E+03 60 SCL Unshielded 1.05E+03 31 FP# 16 Shielded 2,58E+02 60 SCL Shielded p2.58E+021 32 FP# 16 Unshielded 1.03E+03 60 SCL Unshielded 1.03E+03 33 FP# 17 Shielded 2,91 E+02 60 SCL Shielded 2.91 E+02 34 FP# 17 Unshielded 6.43E+02 60 SCL Unshielded A____
6.43E+02 35 FP# 18 Shielded 2.39E+02 60 SCL Shielded 2.39E+02 36 FP# 18 Unshielded 5.13E+02 60 SCL Unshielded 5.13E+02 37 FP# 19 Shielded 3.1 OE+02 60 SCL Shielded pj 3.10E+02 38 FP# 19 Unshielded 8.89E+02 60 SCL Unshielded -
I8.89E+02 39 FP# 20 Shielded 2.47E+02 60 SCL Shielded 2.47E+02_____
40 FP# 20 Unshielded 7.48E+02 60 SCL Unshielded 7.48E+02 41 FP# 21 Shielded 2.39E+02 60 SCL Shielded 2.39E+02_____
42 FP# 21 Unshielded 6.53E+02 60 SCL Unshielded p6.53E+02 43 FP# 22 Shielded 2.70E+02 60 SCL Shielded 2.70E+02_____
44 FP# 22 Unshielded 5.44E+02 60 SCL Unshielded 5.44E+02 45 FP# 23 Shielded 2.22E+02 60 SCL Shielded 2.22E+021_____
46 FP# 23 Unshielded 4.63E+02 60 SCL Unshielded 4.63E+02 47 FP# 24 Shielded 2.65E+02 60 SCL Shielded 2.65E+02_____
4 FP24Unshielded 5.38E+02 60 SCL Unshielded 5.38E+02 49 FP# 25 Shielded 2.79E+02 60 SCL Shielded 2.79E+02_____
50 FP# 25 Unshielded 7,72E+02 60 SCL Unshielded II 7.72E+02 51 FP# 26 Shielded 2.23E+02 60 S
Shedd 32.Es2_____
52 FP# 26 Unshielded 3.54E+02 60 SCL UShielded 2.23E+02 53 FP# 27 Shielded 2.1 1E+02 60 SCL Shielded 32.1 1E+02 54 FP# 27 Unshielded 5.36E+02 60 SCL Unshielded 5.36E+02 55 FP# 28 Shielded 2,62E+02 60 SCL Shielded 32.62E+02 56 FP# 28 Unshielded 4.89E+02 60 SCL Unshielded 4.89E+02 57 FP# 29 Shielded 2.45E+02 60 SCL Shielded
[32.45E+02_____
58 FP# 29 Unshielded 4.02E+02 60 SCL Unshielded 4.02E+02 59 FP# 30 Shielded 2.58E+02 60 SCL Shielded2.8-2 60 FP# 30 Unshielded 4.72E+02 6SLUnhedd13 2472E+02 Minimum 2~.08+2 35E Maximum 3.10E.02 1E+03 Mean 2.51E+026.28E+02 Sioma 2-48E01 2.05Ej02 NT>4
Appendix B-1 (attachment 13-1 to 14-3)
aWSite Report Site Summary Site Name:
Planner(s):
Switch Yard Concrete BHB Contaminant Summary NOTE:
Surface soil DCGLw units are pCig.
Building surface DCGLw units are dpml100 cm'.
Screening Contaminant Type DCGLw Value Used?
Area (mi)
Area Factor Gross Activity Building Surface 33,238 No 36 1
25 16 9
4 1
o S' llylvf 1.2 1.5 2
3.4 10.1 10.1 COMPASS v1.0.0 111412005 Page 1 ATTACHMENT_
-_ENT_
V-Building Surface Survey Plan Survey Plan Summary
.1 1.........-
......-, I..
-I, - - -,
Site:
Planner(s):
Survey Unit Name:
Comments:
Area (m2):
Selected Test:
DCGL (cpm):
LBGR (cpm):
Alpha:
Beta:
Switch Yard Concrete BHB PENELEC Switch Yard Block Walls Survey Unit = PS3-2 4
Classification:
WRS Estimated Sigma (cpm):
1,675 Sample Size (N/2):
1,300 Estimated Conc. (cpm):
0.050 Estimated Power:
0.100 EMC Sample Size (N):
1 205 11 288 1.00 11 Prospective Power Curve 0.
21 0.9 A
O.
i 0.5
_ 0.4 0.3 60.2 V 0.1 el-I I-I i
x i
==
F
=-
=
==z
-l-t_
I v
-1 I_
I I
I t
I I
=I
=
200 400 600 800 1000 1200 1400 1600 1800 2000 Net Beta (cput)
Power DCGL Estimated Power LBGR l-beta COMPASS v1.0.0 1114/2005
-I
,:s Page 1
~
Building Surface Survey Plan Contaminant Summary__
Contaminant Gross Activity DCGLw (dpml100 cm')
33,238 Beta Instrumentation Summary Gross Beta DCGLw (dpmln100 cm'):
Total Efficiency:
Gross Beta DCGLw (cpm):
33.238 0.04 1,675 ID Type 30 GFPC Mode Beta Area (cm')
126 Contaminant Gross Activity Energy' 187.87 Fraction' 1.0000 Inst. Eff.
0.48 Surf. Eff.
0.09 Total Eff.
0.0408 I Average beta energy (keV) [N/A indicates alpha emission]
2 Activity fraction Gross Survey Unit Mean (cpm): 628 +/- 205 (1-sigma)
Count Time (min): 1 Number of BKG Counts Average (cDrMI Material Concrete Block Standard Deviation (cpm) 37.7 MDC (dpml1 00 cm')
1,762 1 20 340.5 COMPASS v1.0.0 111412005 Page 2 ATTACHM'ENT 1-
ml
=Li
~)
ZZZTn.-xi Elevated Measurement Comparison (EMC) for Beta, Followthe order of each tab belowto perform the EMC.'.
- 1) Entr ScagInsrumentEfFiien
l-DCGLW l
Area Factor l
Gross Activity 33.238 10.10 r
Statistical Design Hi N12:l 11Adual S
Bounded Area (m2:
[.4 Area
.AreaFactor l10.10 BbundedAr DCGLw: l 33.238 Post-El Scan MDC Required*: l 335.704 dpm/1 00 crn2 No addtional st an MDC is k contaflrt i; Enable Traininc vi.ao f:
- 3) View EMC Result: -
ont Scan MDC Required*
335.704 it Spot Design rn MD,: I 3.487 Factor. I N/A ea (m2): I N/A MC N/2:
I 11 I
tamrples are tequired because the actual bss than the DCGLw for each
'7 OK i1 l
ATT7AC H; VUN T 1-i3
,60,
'-o Building Surface Survey Plan Survey Plan Summary Site:
Planner(s):
Survey Unit Name:
Comments:
Area (m2):
Selected Test:
DCGL (cpm):
LBGR (cpm):
Alpha:
Beta:
Switch Yard Concrete BHB PENELEC Switch Yard Unpainted Conc.
Survey Unit = PS3Z1 187 Classification:
WRS Estimated Sigma (cpm):
1,675 Sample Size (N/2):
1,300 Estimated Conc. (cpm):
0.050 Estimated Power:
0.100 3
205 11 322 1.00 Prospective Power Curve 1-
. 0.9 -1
- 0.8 0.6 0.4 ZI 0.5-0.4 E 0.3 E6 0.2-____
0~
200 400 600 800 1000 1200 1400 Net Beta (epit)
Power DCGL LBGR 1-beta 1600 1800 2000 Estimated Power COMPASS v1.0.0 1t14/2005 I
x a
Page 1 CI%
Building Surface Survey Plan Contaminant Summary DCGLw Contaminant (dpm/100 cm')
Gross Activity 33,238 Beta Instrumentation Summary Gross Beta DCGLw (dpmn100 cm2):
Total Efficiency:
Gross Beta DCGLw (cpm):
33,238 0.04 1,675 ID Type Mode Area (cm')
30 GFPC Beta 126 Contaminant Energy' Fraction' Inst Eff.
Surf. Eff.
Total Eff.
Gross Activity 187.87 1.0000 0.48 0.09 0.0408 Average beta energy (keV) [N/A indicates alpha emission)
'Activity fraction Gross Survey Unit Mean (cpm): 628 *205 (1-sigma)
Count Time (min): 1 Number of Average Standard MDC Material BKG Counts (cpm)
Deviation (cpm)
(dpm/100 cm')
Concrete 31 306 34.5 1,673 COMPASS v1.0.0 111412005 Page 2 ATTACH r;E NTj
NOTE: This is a Class 3 survey unit (unpainted concrete base structures). To show the MDCscan value, the data was input as a Class 1 survey unit. No other use is intended.
BHB 1/21/05
%!IlitiollIU.%..1%iiiplltk.f,-I.-"Tiar.-M.fn
IW
.V, -,,
,I - --, --.- " -- ' "-
JJ0 4
I
'.
4.-
I
.
I.
Elevated Measurement Comparison (EM for Beta -
=order of each tab belowto perform the EMC.
- 1) Enter Scaning Institinent Effici 2)EnterScanMDCParareter:
Arearcactor Scan MDC Required*
Gross Actmty 3,23U 1.41 48UbU Statistical Design Hot Spot Design
-N12: j 11 Actual Scan MDCt. j 3,Ub BoundedArea(mr2): l17.0 AreaFactor l N/A Area Factor l 1.47 BoundedArea(ni): l N/A.
DbCLw'.
3338.-
Post-EMCN/2: l 1
Scan MDC Rcquircd'. l 4860 I dpm/IUUr crn F
W E Ftimbke Tririniri Y1.0.0 No addtional sarnoles are ieamred because the actual scan MDC is less than the DCGLw for each corontaant.
- E -OK 11 ATTjACHI,1vENT -3
Appendix B-2
SURVEY REQUEST CONTINUATION SHEET SR NUMBER l
0193 l AREA/LOCATION I PS3al, PS3-2, PS4-1 SPECIFIC SAMPLING/SURVEY INSTRUCTIONS OR COMMENTS RESULTS
SUMMARY
FOR SR-0193 SR-0193 was issued to obtain radiological survey and sampling data to ensure Final Site Survey activities are complete. The survey units covered under this SR are PS3al, PS3-2, PS4-1 (grids are listed in the SR). The SR required the following radiological measurements.
- Surface scan measurements using a 2" x 2" Nal detector (set to identify Cs-1 37) and Gas Flow Proportional Counter (calibrated to Cs-1 37). Survey techniques will be lAW the SR.
- A total of 19 Site Surface Dose Model (SSDM) sample points were provided for samples to be taken for analysis in area PS4-1. SNEC Calculation Sheet using 'COMPASS' program required 16 samples to be taken.
Site Surface Dose Model Samples: Obtain samples as directed in the SR. Obtain a sample 6 inches in depth.
A total of 11 static measurements were required in area PS3a-1. A total of 11 static measurements were required in area PS3-2. This number of static measurements per survey unit is based on the 'Compass" computer program.
QC Repeat Measurements: A minimum of 5% of all surface scan measurements, surface static measurements and sampling were re-performed using identical methodology. SSDM sampling was performed by taking a second sample from the same drill hole.
QC Repeat Analysis (Replicate): A minimum of 1 sample per SR of all SSDM samples were analyzed using identical methodology.
Additional sampling/surveys were performed at the request of the SR coordinator.
- 1. Summary of Results A. Surface Scan Measurements (2" x 2" Nal Detector)
A 100% surface scan was required of all accessible areas of certain grids, lAW the SR. A total of 89.50%
of PS4-1 a Class 1 area was surveyed, which is well within design basis.
Results: One grid, BA-1 30 contained three (3) locations greater than the action level. No other areas indicated activity above the action level of 300 GCPM (gross counts per minute). (See section #5)
Appenadi 5-2 Page I of 3 6/29/2005
SURVEY REQUEST CONTINUATION SHEET SR NUMBER 0193 AREA/LOCATION PS3al, PS3-2, PS4-1 SPECIFIC SAMPLING/SURVEY INSTRUCTIONS OR COMMENTS B. Surface Scan Measurements (GFPC)
A total of 100.00% of PS3-2 a Class 1 area was surveyed which is design basis. A total of 79.35% of PS3a-1, a Class 3 area was surveyed, which is well within design basis.
Results: No areas in unit PS3-2 indicated activity above the action level of >1400 GCPM (gross counts per minute). No areas in unit PS3a-1 indicated activity above the action level of >1000 GCPM C. Surface Static Measurements Design random static measurements were required in units PS3a-1 and PS3-2. In unit PS4-1 static measurements were taken in the locations of the elevated measurements.
Results: In area PS3-2, with 15 static points measured, no points exceeded the action level of > 1400 gcpm. In area PS3a-1, with 15 static points measured, no points exceeded the action level of > 1000 gcpm.
In area PS4-1, 3 static measurements were all greater than the action level at AP-1: 366 gcpm, AP-2: 525 gcpm and AP-3: 358 gcpm, which would be expected occur. (See section 4)
D. Site Surface Dose Model Sampling Twenty eight (28) SSDM samples were obtained. Two (2) SSDM QC samples were taken. These samples were statistically spaced based on a random starting point due to the lack of noticeable elevated activity during final post remediation scan/static surveys. (See section 4)
Results: Nine (9) SSDM samples taken for this SR were less than MDA. MDA activity range is from 0.05 pCi/g to 0.07 pCi/g (for the surrogate isotope, Cs-137). For the Nineteen (19) samples, not including QC samples, that did contain Cs-137activity greater than the sample MDA, activities ranged from 0.32 pCi/g to 1.23 pCi/g. No other licensed isotopes identified for this particular SR.
- 2. Quality Control (QC) Measurements and Comparisons
- Repeat Scan measurements Static Measurements and SSDM samples were performed and met the applicable acceptance criteria established in Section 4.6 of E900-IMP-4520.04.
QC scan measurements were repeated for 6.74% of the area scanned in unit PS3a-1. QC scan measurements were repeated for 23.81% of the area scanned in unit PS3-2.. QC scan measurements were repeated for 5.09% of the area scanned in unit PS4-2.
QC scan measurements were repeated for 6.67% of the area scanned in unit PS3a-1. QC scan measurements were repeated for 6.67% of the area scanned in unit PS3-2.
SSDM sample QC measurements were repeated for 7.14% of SSDM samples.
Page 2 of 3 6,129120o5
SURVEY REQUEST CONTINUATION SHEET SR NUMBER 0193 AREA/LOCATION PS3al, PS3-2, PS4-1 SPECIFIC SAMPLING/SURVEY INSTRUCTIONS OR COMMENTS
- 3. Quality Control Sample Recounts Repeat QC replicate recount - SNEC has determined that, at a minimum, one SSDM sample from each SR will have replicate gamma spectroscopy counts performed on them. In the case of this SR, 3 SSDM sample had replicate counts performed; sample #2-23334, #2-23332 and #5-23335, satisfying this requirement. In addition, monthly, approximately five per cent (5%) of all samples counted on the gamma spectroscopy system or Tri-Carb system, lAW SNEC Procedure E900-QAP-4220.02, are required to be counted for replicate analysis. (e.g. FSS soil samples) E900-IMP-4520.04 requires 5%
replicate recounts.
- 4. Exceptions and Discrepancies
- In area PS4-1 the 89.50% scan survey equates to 100% of the accessible surface areas. Items precluding 100% survey were concrete and covered in survey unit PS3-2 or PS3a-1.
- Three elevated measurements were located in grid BA-130. These elevated areas were sampled IAW.
SR Continuation Sheet.
- The SR/SD called for sampling of newly laid gravel, then sampling of soil to a depth of 4 inches. Instead of the nineteen samples called for, 28 samples were obtained at 19 locations.
- 5. Special Note(s)
- As stated previously, as this is a Class 1 area, scan coverage of approximately 100% of accessible areas will suffice to show due diligence in survey technique for release of the site for unrestricted use.
This SR is unique in that it contains Class 3 material in a class 1 area. The class 3 area also met site requirements for survey methodology.
- One QC soil sample was taken.
- Of the twelve (12) samples taken for resolution of the APs, one (1) sample was <MDA (for Cs-1 37) at 0.05 pCi/g. The eleven other samples showed positive Cs-137 activity from 0.12 pCi/g to 11.31 pCi/g
- AP-2 had a static QC measurement performed which read 453 gcpm.
- A replicate sample was performed on investigational samples for the AP #5-23852 Flo 0s S.~ M 6& -1 1
645/of Print/Signature bate Page 3 of 3 612912005