ML12095A386

Fnr Characterization Package Workbook SP-017 Building Roof

ML12095A386
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Site:	University of Michigan
Issue date:	02/14/2012
From:	Occupational Safety & Environmental Health University of Michigan
To:	NRC/FSME
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ML120950629	List: ML12095A378 ML12095A380 ML12095A381 ML12095A382 ML12095A383 ML12095A384 ML12095A385 ML12095A386 ML12095A387
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FNR Characterization Package Workbook SP-017 Building Roof Master Copy Bartlett Services, Inc

I I Package Log No: FNR-SP-017 I Survey Area: 7 I Survey Units: 7-1 Survey Unit/Area

Description:

FNR Roof and Vent Stack Exterior SURVEY PACKAGE COVER SHEET Survey Type: Characterization Survey Survey Objectives:

1. Confirm that the FNR Roof is a non-impacted area.

2. Alternately, if detectable licensed radioactive materials are measured, demonstrate that the FNR Roof and Vent Stack meet release criteria.

3. Obtain measurements and supporting documentation of sufficient quality for the Final Status Survey Report.

Package Contents: 5. Survey Maps with Field Annotation

" Document Change Control Form 6. Raw Data - Survey Forms & Field Notes

" Survey Unit Walkdown Notes 7. Survey Data Processing Forms

• Survey Design Worksheet 8. Sample Information Forms

" Survey & Sampling Instructions 9. Sample Chain of Custody Forms

" Drawing and Document References 10. Smear Counting Results

11. Vendor Laboratory Analysis Reports Attachments 12. UM Sample Analysis reports

1. Photographs (Figures 1 through 13. Data Summary Report

9) 14. JHA & Attendance Sheets

2. SP-0 17 Addendum 15. Reference Material

3. Survey Maps & Forms 16. Correspondence

4. Survey Timeline 17. 6/11/07 Power Point Presentation, "Radiological Survey of FNR Roof'.

18. Superseded Information Survey Package Implementation: _ __/____ ___

Rock P. Neveau / /

Radiological Engineer Ptinted Name Signature, Date Bruce J. Mann ,4 ( '2- _ _ _,- _ _

Health Physics Supervisor Printed Signature Date Name Implementation Comments:

Survey Package Closure:

Radiological Engineer Printed Signature Date Name Health Physics Supervisor Printed Signature Date Name Package Closure Comments:

SP-017 Pkg FormsRev03 Page I of 19 12/12/2007 Rev 03

Package Log No: FNR-SP-017 Survey Area: 7 Survey Units: 7-1 Survey Unit/Area

Description:

FNR Roof and Vent Stack Exterior Survey Package Document Control Change Form Change # Description Initiator/Date RE 01 Revised instructions to: B. Mann /20-

1. Add collection of smears in PML reference Jun-07. per C.

area at the 18 randomly selected locations. Becker

2. Perform gamma scan survey of PML request.

Reference Area. This requires that the reference area be gridded into two meter grids.

3. Collect samples from the PML stacks.

4. Modified List of attachments to add: B. Mann 25-

5. Survey Timeline Jun-07

6. UM Tennelec S5 XLB smear count reports

7. Vendor laboratory sample analysis reports

8. Pre-Job hazard briefing attendance sheets.

9. JHA for FNR Roof Characterization Survey Pkg SP-017

10. Survey maps with field annotation.

11. Raw measurement data sheets and field notes.

12. 6/11/07 Power Point presentation, "Radiological Survey of FNR Roof'.

13. Superseded Survey Package pages.

02 Correction to Page 1 of Attachment 3, Survey B. Mann Forms, Instrument Information. Typos corrected 09-Jul 07.

- detector serial Nos. HV and instrument efficiency.

03 Package revision 03. Incorporate Addendum B. Mann and Change cover sheet, list of attachments. 12/11/07 This is to provide improved organization of supporting information.

SP-0 17 Pkg FormsRev03 Page 2 of 19 12/12/2007 Rev 03

I Package Log No: FNR-SP-0 17 1 Survey Area: 7 I Survey Units: 7-1 Survey Unit/Area

Description:

FNR Roof and Vent Stack Exterior Survey Unit Walkdown Record Walkdown Checklist:

1. Confirm dimensions of roof sections and confirm draft survey grid map.

2. [M Measure vent stack height. Examine the vent stack - can access be gained from the roof for the survey of the interior surfaces (separate survey package)?

3. F] Confirm locations and details of roof drain openings. Examine the roof drain openings - can the drains be accessed for sampling and survey?

4. x Describe the materials; roof coverings, flashing, gutters, vent stack exterior.

5. x Is roof surface dust or sediment present to provide material for samples of surface deposits?

6. x Note the condition of the roof- is it amenable to scan survey with the floor monitor?

7. x Identify any preparation work that must be accomplished prior to the actual survey.

8. x Evaluate the safety issues - fall protection requirements and other advance preparation.

9. x Walkdown and examine the PML roof, particularly the south end. Is it suitable for use as a reference area?

10. E] Take photographs of roof for planning aids.

Walkdown Notes (from 5/10/07)

1. Dimensions of roof confirmed. The roof is in excellent condition - precautions will be taken to avoid damage.

2. The Vent Stack height measured (9 ft). It is not planned to access the vent stack interior from the FNR roof for surveys. It was determined that it would be safer to access to the stack interior from the vent pipe chase at the Cooling Tower elevation.

3. Locations and details of roof drains confirmed. The roof drains are readily accessible - the covers are not bolted.

4. The roof consists of two inches of insulating material covered by a 60 mil thick EPD membrane (Ethylene Propylene with diene monomers). It is bordered by metal flashing; the vent stack is painted steel.

5. The roof is free from dust or sediment except at the roof drain openings and the Cooling' Tower exhaust vent frames.

6. The roof is in good condition, with a smooth surface regular surface except in the vicinity of the roof drains and should readily accommodate a floor monitor for scan surveys. It is anticipated that we will scan up to 25% of the roof surface (roof surface area is - 450 mnE).

7. Light housekeeping cleanup support will be requested to remove rust & scale from the roof beneath cooling tower louvers and to remove leaves and twigs from the PML roof south section.

8. For work on the portion of the roof that is at the PML elevation, the frames of cooling tower louvers can be used as anchor points for fall-arrest cables. There are several wasp nests in the cooling tower louvers in the FNR walls at the PML roof elevation (sprayed with pesticide 5/14/07).

9. The PML roof is of the same vintage as the FNR - It is planned to use the S. end of the PML roof as a "reference area" for the FNR roof survey.

10. The Reactor Laboratory Manager recommended that a few measurements be taken on the outside of the cooling tower louvers - mineral deposits from secondary cooling water are present on a few of the louvers.

11. Samples of the roof material itself are not planned, but candidate material sampling locations are:

the cooling tower exhaust vent frame and roof drains.

12. Scale maps will be required for FNR roof and the reference area on the south end of the PML.

End of Notes SP-017 Pkg FormsRev01 Page 3 of 19 6/25/2007 Rev 0 1

Package Log No: FNR-SP-017 I Survey Area: 7 ] Survey Units: 7-1 Survey Unit/Area

Description:

FNR Roof and Vent Stack Exterior Survey Design Worksheet

==

Description:==

The FNR main roof is at elevation 894 ft. and of dimensions 54 ft. (N-S) by 60 ft. 8 in.

(E-W) .This survey unit also includes the FNR 3 rd floor roof surfaces at the PML roof elevation bordering the FNR 4 th floor on the east and north. The roof is of "built-up" construction overlying a poured low-density concrete roof slab. It consists of two inches of insulating material covered by a 60 mil thick EPD membrane (Ethylene Propylene with diene monomers). It is bordered by metal flashing. The main roof is sloped to drain into two sumps located near the center of the roof area.

These sumps drain into piping that connects to the storm sewer in the southwest comer of the FNR Beam Port floor. The FNR building vent stack is located near the northwest comer of the roof and extends 9 ft. above the roof line. The Cooling Tower exhaust fans vent through a large opening (8.5 x 24.5 ft.) located in the north-central part of the main roof.

The sections of the roof on the north and east sides of the FNR building at elevation 875 ft., 19 ft.

below the FNR Roof, are of similar construction to the main roof. This portion of the roof drains to two roof drains located near the north and east walls of the FNR which connect to the storm sewer piping in the east side of the Beam Port Floor.

Survey Unit History: The FNR roof was replaced in 2001. There is no history of significant release of radioactive particulates from the FNR stack. [Historical Site Assessment, CH2MHill 2003]. It is noted that the FNR Roof is also downwind from the PML stacks.

Design Assumptions:

The FNR Historical Site Assessment (HSA) report identified the FNR Roof as un-impacted, i. e.,

having low likelihood of contamination from licensed radioactive materials. However, there are three potential pathways for contamination of the roof by licensed radioactive materials. These are:

• FNR stack which exhausted nine feet above the roof

• PML stacks which are located just south of the FNR roof (FNR Pool trunks and fume hood exhausted from PML Stack 2).

• The Cooling Tower exhaust vents are at the FNR roof level.

There is no record of recent radiological surveys of the roof, so a conservative survey design will be applied. The FNR exhaust stack (interior) is identified as impacted in the HSA (it will be covered under a separate survey package). The exterior of the FNR exhaust stack will be included with the survey of the roof.

Theroof survey design assumptions follow MARSSIM survey guidance for a Class 2 structural survey unit. A single survey unit is established for the roof including the surfaces at both elevations.

The survey design for total surface activity measurements is based on the Wilcoxon Rank Sum (WRS) test with a survey reference area. However, the planning assumption is that ere are no actual residual contamination deposits on the roof, so the "sigma" value is small and )very large, hence the 4-calculated number of measurements will be small, (less than 10) for both the roof survey unit and reference area. For survey planning purposes, the default assumption is that at least 18 locations will be selected on triangular grids with random start location on the FNR Roof and on the reference area.

This will assure sufficient statistical power of the WRS test at the decision error probabilities: a = 0.05 and B = 0.05 regardless of the A/s value.

The performance criteria for instrument selection are based on default surface activity DCGLs for Co-SP-017 Pkg FormsRev01 Page 4 of 19 6/25/2007 Rev 01

Package Log No: FNR-SP-017 j Survey Area: 7 1 Survey Units: 7-1 Survey Unit/Area

Description:

FNR Roof and Vent Stack Exterior 60 (beta) and U-235 (alpha). These are 7100 dpm/100-cm 2 and 100 dpm/100-cm 2 , respectively. The selection criteria are as follows:

• Surface Gamma Scan: no numerical criterion (the 44-10 is not calibrated for measurements of gamma activity from surface, or near-surface, contamination.

• Surface Beta Scan: 3500 dpm/100-cm 2 (50% of DCGL)

" Total Surface Beta Measurements: 1750 dpm/100-cm 2 (25% of DCGL)

• Total Surface Alpha Measurements: 25 dpm/100-cm 2 (25% of Screening level DCGL for U-235)

SRemovable Surface Beta Measurements: 70 dpm/1 00-cm 2 (1%of DCGL)

• Removable Surface Alpha Measurements: 25 dpm/100-cm 2 (25% of default DCGL for U-235)

Action - investigation levels are also established as fractions of the applicable DCGLs:

• Surface Gamma Scan: detectable sustained increase above background (audible response)

• Surface Beta Scan: detectable sustained increase above background (audible response)

• Total Surface Beta: 3500 dpm/100-cm 2 (50% of DCGL)

• Total Surface Alpha: 50 dpm/100-cm 2 (50% of Screening level DCGL for U-235)

• Removable Surface Beta: 700 dpm/100-cm 2 (10% of DCGL)

• Removable Surface Alpha: 25 dpm/100-cm 2 (25% of Screening Level DCGL for U-235)

Survey and Sampling Instruction Form General Instructions:

1. The roof areas on elevations 894 ft. and 875 ft. and the reference area are to be marked off in two meter grids. The grids are to be marked on the roof with, chalk line, paint markers, or other durable markers. The grids are marked to be consistent with the survey map grid layout.

2. The grid numbers as shown on the survey maps will be used to identify survey locations; for scans, total surface activity measurements, sample locations and any special measurements. See Survey Map SP-01 7-01 for the grid layout of the roof.

3. The survey will consist of:

a. Gamma-scan survey of the entire roof area and the reference area (excluding Cooling Tower exhaust).

b. Surface beta scan survey of a minimum of 20% of the roof surface area. (20% of the accessible area of the roof is equivalent to 22 grids) This includes 20-two-meter grids selected at random plus additional grids selected by the technician to include locations of possible deposition, e.g., down-wind of the vent stacks around roof drains, etc.

c. Total surface beta activity measurements (one-minute count) are to be taken at locations in the 20 grids selected at random as shown on survey map SP-017-01.

d. Total surface alpha activity measurements (one-minute count) are to be taken at locations in the 20 grids selected at random as shown on survey map SP-0 17-01.

e. Smears (100-cm 2) collected at each of the 20 grids selected at random and at the 18 selected locations in the reference area.

f. Samples of loose scale and debris from roof drain openings, the Cooling Tower fan exhaust vent frame and the PML stacks..

g. Smear or material samples from the four PML vent stack interiors.

of 19 6/25/2007 Rev 01 PageS Pkg FormsRev0l SP-017 Pkg SP-017 FormsRevO I Page 5 of 19 6/25/2007 Rev 01

Package Log No: FNR-SP-017 I Survey Area: 7 1 Survey Units: 7-1 Survey Unit/Area

Description:

FNR Roof and Vent Stack Exterior

4. Additional one-minute total surface beta measurements are to be taken to ensure that areas of the roof downwind of the FNR stack and the PML stacks are surveyed (north and east of the stacks). The prevailing wind direction is from the southwest.

5. Additional measurements may be selected by the Survey Technician on a judgment basis, considering locations where deposition could occur or where scan surveys show indications above background. Additional measurements may also be directed by the Reactor Laboratory Manager, Assistant Laboratory Manager or by Project Radiation Protection management and supervisory personnel. Such directions are to be documented on the comment section of the Survey Forms.

.6. The south end of the PML roof has been established as a reference area for the survey. Eighteen total surface activity measurements are to be collected at designated locations chosen at random (on a triangular grid).

Specific Instructions:

1. Background Survey

a. Perform a minimum of five background measurements with each detector (one-minute scaler counts) on the FNR Roof and the Reference Area unless directed otherwise.

b. The detectors include those used for gamma scans (LMI 44-10 Nal), surface beta scans (LMI 44-142 and LMI 239-1F Floor Monitor) and total surface activity measurements (LMI-44-142, beta &

LIM 43-92, alpha). Record the data on Part II of the Survey Form. Record the location of each background measurement on the appropriate survey map.

c. Take several background measurements with the LMI 44-142 on the accessible portions of the PML stacks (south side) for use as backgrounds for the survey of the FNR Stack.

2.. Gamma Scan Survey

a. Using the 44-10, 2x2 in. Sodium Iodide detector coupled to an LMI 2221 scaler-ratemeter, perform a walkover gamma scan survey of the entire FNR roof and PML reference area.

b. Set the instrument to "fast" response and use the earphones to listen for an increase in the audible response.

c. Maintain the detector within one to two inches from the roof surface moving the detector from side-to-side while slowly walking forward on a straight path (serpentine pattern).

d. Cover the entire accessible roof surface - walk the roof in straight paths about one meter apart using the two-meter grid marks as guides.

e. The detector speed is to be maintained between 0.5 and one meter per second.

f. Note that the gamma scan sensitivity of the LMI 44-10 is not quantified for surfaces such as the FNR roof. The objective is to identify areas that exhibit direct gamma radiation counts that are distinguishable above the LMI 44-10 background count rate.

g. Listen for any increases in the count rate as indicated by the audible response. Compare the count rates to the background count rate as determined in Part I of these instructions.

h. Pause and investigate any areas where the detector response exceeds the background count rate.

Mark areas that exhibit a sustained increase above background, > 1.5 times the average background count rate.

i. Mark areas determined to be above the LMI 44-10 background. Mark on the roof surface and on a survey map that shows the roof marked with two-meter grids.

j. It is not required to record gamma scan observed gcpm in each grid on a survey data form. Record the range of observed gcpm for each traverse in the comments section.

SP-017 Pkg FormsRev01 Page 6 of 19 6/25/2007 Rev 01

Package Log No: FNR-SP-017 1 Survey Area: 7 Survey Units: 7-1 Survey Unit/Area

Description:

FNR Roof and Vent.Stack Exterior Surface Beta Scan Surveys

a. Perform surface beta scans of the 20 designated two-meter grids identified on the survey map.

b. Maintain the detector at 1/4 inch from the surface and move the detector across the surface at a speed no greater than one detector width per second.

c. In addition to the designated grids, scan selected grids downwind of the FNR Stack and downwind of PML Stack 2 (north and east of the stacks).

d. The Ludlum Floor Monitor or the LMI 44-142 detector may be used for surface scan surveys. The LMI 44-142 detector is to be used in areas where the floor monitor cannot fit, or maintain the prescribed distance from the surface.

e. Use the audio response (with head phones) to identify any areas where a count rate increase (above background) is noted.

f. Delineate any locations where a sustained- increased count rate (audible increase or by meter/scaler response) is confirmed. Mark the boundary on the roof and on a survey map. If an elevated area extends beyond grid boundaries, follow it to define the area as necessary.

g. Record the highest count rate observed in each grid that is scanned (from the digital rate meter).

This is to be done by mentally noting the highest digital count rate during the scan. Record the highest scan count rate whether or not "elevated" count rates were observed. Record in units of gross counts per minute (g-cpm).

h. Scan the exterior surface of the FNR Vent Stack using an LMI 44-142 detector. Cover at least 20% of the surface area of the stack.

i. Using a LMI 44-142 detector, scan the Cooling Tower air intake Louvers (on the portion of the roof at the PML elevation) where mineral deposits (from cooling tower water) are visible. See Figure 8 photo. Mark any locations where the audible count rate is determined to be above background.

j. If needed to survey locations that are inaccessible to the floor monitor and the 44-142 detector, a pancake probe (LMI 44-9) is used to scan the locations.

NOTE: The beta scan survey is designed under the assumption that the scan sensitivity is < 3500 dpm/100-cm2, i. e., < 50% of the limiting surface DCGL (7100 dpmr/100-cm 2 for Co-60).

4. Total Surface Activity Measurements

a. Perform total surface beta measurements (one-minute scaler counts) with an LMI 44-142 detector at each of the 20 locations identified on survey map SP-017-01 for the FNR.

b. Perform total surface beta measurements (one-minute scaler counts) with an LMI 44-142 detector at each of the 18 locations on the PML roof identified on survey map SP-017-02.

c. Perform total surface alpha measurements (one-minute scaler counts) with an LMI 43-92 detector at each of the 20 locations identified on survey map SP-017-01.

d. Perform total surface alpha measurements (one-minute scaler counts) with an LMI 43-92 detector at each of the 18 locations on the PML roof identified on survey map SP-017-02.

e. Locate each total surface activity measurement by identifying the appropriate grid shown on the survey map. Select the measurement location within the grid using judgment - an accuracy of+

one foot is sufficient. It is not necessary to mark the measurement location on the roof.

f. In addition to the 20 locations, take at least one total surface beta measurement on each area (if any) of the FNR where an increased count rate was observed during the scan survey including the FNR Vent Stack and the Cooling Tower Intake louvers.

5. Smears and Material Samples

a. Collect a 100 cm2 smear from each of the 20 selected grids on the FNR roof and the 18 designated SP-017 Pkg FormsRevO g 7 of 19 Page 6/25/2007 Rev 01

Package Log No: FNR-SP-017 1 Survey Area: 7 I Survey Units: 7-1 Survey Unit/Area

Description:

FNR Roof and Vent Stack Exterior locations on the PML reference area.. Use standard 49 mm smears. Count each for alpha and beta for a minimum of 1 minute.

b. Collect samples of the loose material from the drain openings on the FNR main roof and from the roof of the 3 rd floor at the PML elevation. See Figure 7 photo for an example. Include material from the roof surface and the drain opening. Place the material from each drain opening in a separate 500 ml plastic bottle. Not all of the drains are good sampling candidates as they do not contain much material.

c. Collect a 100 cm2 smear sample from inside each of the four PML stacks (or from the ventilation ducting in the PML downstream of the exhaust fans). Ensure that the smears are labeled to include the stack No. Count each smear for gross alpha and beta activity. %.,- d.-o- C V "r,, (.10TY

d. Collect a sample of the loose material from the Cooling Tower exhaust frame. Include rust, scale and lichen material. See Figure 9 photo. Place the material in a 500 ml plastic bottle. Mark the sample location on the survey map (SP-0 17-01)

e. If detectable activity above background is observed during the scan or direct measurement surveys, collect a sample of the loose scale on the Cooling Tower intake louvers (PLM elevation, north side of FNR). See Figure 8. Place the material in a 500 ml plastic bottle. Mark the sample location on the survey map (SP-017-01).

f. Label each sample container with the sample number using the following convention: SP-0 17-01, 02 etc, where the numbers 01, 02 are sequential numbers.

6. Survey of PML Roof Reference Area

a. Mark the measurement locations on the PML reference area roof surface (# I through 18). Mark the reference area into 2 meter grids.. Coordinates of the reference area measurements are shown on Survey Design Map No. 2. The measurement locations may be established by measuring distances from the coordinate system origin at the NW comer of the reference area.

b. These are to be one-minute scaler counts with an LMI 44-142 detector.

c. Take a total surface beta measurement and a total surface alpha measurement at each of the locations identified on the survey map for the PML Roof reference area.

7. Survey Data Recording

a. See the attached survey forms (Attachment 3).

b. Complete the header information on each sheet of the survey form.

c. Complete the instrument information table in Part I.

d. Document background measurements in Part II.

e. Record each total surface activity survey measurement and beta scan maximum cpm for each grid in Part III, survey measurement data form.

f. Use a separate measurement data form for the Reference Area

g. For each material sample record the following in Part IV.

" Show the sample location on the survey map (Map No. SP-017-01) using the triangle icon with sequential sample No.

• Date sample collected

• Description of sample material

• Sample container (500 ml bottle, zip-lock bag, etc.)

" Name of person who collected the sample.

Use the comment sections on the forms to document any discrepancies to conditions assumed in the instructions or any other explanatory information.

SP-017 Pkg FormsRev01 Page 8 of 19 6/25/2007 Rev 01

Package Log No: FNR-SP-017 Survey Area: 7 Survey Units: 7-1 Survey Unit/Area

Description:

FNR Roof and Vent Stack Exterior Characterization Package References Package Log No: FNR-SP-017 Survey Area: 7 Survey Units: 7-1 Survey Unit/Area

Description:

FNR Roof and Vent Stack Exterior

1. General

References:

A. FNR Decommissioning Plan, Rev 1, 2006. § 1.2.3 provides a general description of the FNR Building.

B. The Historical Site Assessment [CH2MHill, January 2003], § 5.2 identifies the FNR Roof as a non-impacted area.

C. The FNR Decommissioning Environmental Report [CH2MHill, June 2004] § B.4.2.2, indicates that the prevailing wind direction in the Ann Arbor area is from the southwest.

2. Drawings:

Drawing No. Description Dwg No. M-9, Smyth, Reactor Building, Heating and Ventilating, 3 rd and 4th Floor Hinchman & Grylls, 1/24/55 Plans Dwg No. A-5, Smyth, Reactor Building, Roof Plan and Details Hinchman & Grylls, 1/24/55 Dwg No. A-6, Smyth, Reactor Building, Sections Hinchman & Grylls, 1/24/55 Sheet A2. 1, U of Michigan Phoenix Laboratory and Ford reactor Roof Replacement, Roof Facilities Planning & Design, Level Plan 5/15/2001 SP-0 17 Pkg Forms Page 9 of 19 6/12/2007 Rev 0

SP-017 Survey Maps and Data Forms

I I

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Ford Nuclear Reactor Survey Map Reference Area for FNR! Roof S-urve -Ufiiif-7-tr 16 17 18 Suface Area = 133.87 sq. m Grid Spacing = 2 nm FNR P-DWG-7ý Date': 6/4/2007 Map-No.- PO017-O2 14 15 11

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FNR Survey Package SP-017 1:0ll Attachment 2 - Survey Design Map No. 1 R+

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Survey Design for 20 Direct Measurements Visual Sample Plan -Triangular Grid - Random Start 5/18/07 File: SP-017_OlAl 0-J2 -8 -6 -4 -2 02 4 6 8 10 12 14 16 I

FNR Survey Package SP-017

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Survey Design for 18 Direct Measurements Visual Sample Plan - Triangular Grid - Random Start Reference Area for FNR Roof Survey 5/18/07 File: SP_017-02 C%1 U U U

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FNR-SP-0 17, Attachment 3 -Survey Forms Survey No.:2007-1262 Survey Unit No.7-1 Survey Pkg. SP-107 SHEET _ OF 7 I. Instrument Information Instrumentation Comments:

1. Cable length is 6 ft on detectors in sets No. I through 4.

2. Instrument efficiency is determined with a Tc-99 calibration source.

II. Background Measurements Location => PML Roof FNR Roof Instrument Isrmn e Instrument Set Instrument Set set Instrument Set No. 1 No. 2 No. 1 No. 2 Notes Measurement No.No Count (cpm) Count (cpm Count Count (Cpm)(cpm)

(cpm) time time time time (min) (min) _ (m in) (min) 295 1 1.5 2 299 1 1.0 2 Alpha detector.

1 2951. 2 2991.0_ face up 2 282 1 0.5 2 284 1 2.0 2 Alpha detector.

2 face up 276 1 2.0 2 270 1 0.5 2 Alpha detector.

3 face up 4 272 1 0.5 2 260 1 0.5 2 Alpha detector.

face up 5 2Alpha detector.

280 1 2.0 2 298 1 15.0 2 face down 235 1 NA NA 278 1 3.5 2 Against FNR stack 6

7 NA NA ýNA NA NA NA 0.0 2 Alpha detector.

face up Grid 105 NA NA NA NA NA NA 4.5 2 Alpha detector.

8 face up Grid 105 NA NA NA NA NA NA 1.5 2 Alpha detector.

9 NAI NA NA NAINANA 1.5 2 face up Grid 105 Background Measurement Comments:

1. Background measurements taken on roof surfaces on 6/21/07 at locations throughout the FNR roof and PML reference area.

2. All beta measurements were taken with Instrument Set No. 1 and with detector sensitive face toward roof.

3. Alpha measurements taken with Instrument Set No. 2 and with detector in position as noted.

SP-0 17 Survey FormsRev02 Sheet I of 7 Rev02 7/11/2007

FNR-SP-017, Attachment 3 -Survey Forms Survey No.:2007-1262 Survey Unit No.7-1 Survey Pkg. SP-107 SHEET 2- OF 7 Il. Survey Measurement Data Form Location PML Roof Reference Area Alpha Gamma Remov Remov Beta Total Total Scan a 03 Instr. Surface Instr. Surface Instr. Activity activity activity Notes Grid Set Activity Set Activity Set (gcpm (dpm/10 (dpm/10 No. No. (gcpm) No. (gcpm) No. NaI) 0-cm 2 ) 0-cm 2) 01 1 311 2 16.5 4 6808 5.58 22.790 02 1 275 2 12.5 4 6961 3.72 15.19 03 NA NA NA NA 4 6667 NA NA 04 1 251 2 7.5 4 9396 1.86 72.17 y count effect of PML wall parapet 05 NA NA NA NA 4 7322 NA NA 06 1 278 2 8.5 4 6996 5.58 49.38 07 1 259 2 6.5 4 6780 5.58 53.18 08 NA NA NA NA 4 9688 NA NA y count effect of PML wall parapet 09 1 287 2 14.0 4 7260 3.72 32.29 10 1 301 2 8.0 4 6782 11.16 43.68 11 NA NA NA NA 4 6909 NA NA 12 1 286 2 4.5 4 8449 3.72 20.89 y count effect of PML wall parapet 13 NA NA NA NA 4 7184 NA NA 14 NA NA NA NA 4 6862 NA NA 15 NA NA NA NA 4 7545 NA NA 16 NA NA NA NA 4 7954 NA NA 17 NA NA NA NA 4 7476 NA NA 18 1 292 2 12.0 4 6338 5.58 32.29 19 1 267 2 8.5 4 6690 5.58 20.89 20 NA NA NA NA 4 10307 NA NA y count effect of PML wall parapet 21 1 283 2 13.5 4 6868 1.86 36.09 22 1 303 2 14.0 4 6904 14.88 32.29 23 NA NA NA NA 4 6417 NA NA 24 1 272 2 10.5 4 9763 3.72 32.29 y count effect of PML wall parapet 25 NA NA NA NA 4 6535 NA NA 26 1 265 2 9.5 4 6496 9.30 32.29 27 1 290 2 9.0 4 6760 7.44 39.88 28 NA NA NA NA 4 10172 NA NA y count effect of PML wall parapet 29 1 279 2 14.5 4 6013 3.72 5.7 30 1 278 2 11.0 4 6482 9.30 3.80 31 NA NA NA NA 4 7211 NA NA

FNR-SP-0 17, Attachment 3 -Survey Forms Survey No.:2007-1262 Survey Unit No.7-1 Survey Pkg. SP-107 SHEET 3 OF 7 32 1 273 2 4.5 4 10202 3.72 15.19 y count effect of PML wall parapet 33 NA NA NA NA 4 5755 NA NA 34 NA NA NA NA 4 6139 NA NA 35 NA NA NA NA 4 6063 NA NA 36 NA NA NA NA 4 8026 NA NA y count effect of PML wall parapet Comments:

1. Beta TSA by JR Grey on 6/21/07 with instrument set No. 1 & 1 minute counts.

2. Alpha TSA by N Campbell on 6/21/07 using instrument set No. 2 & 2 minute counts.

3. Smears collected on 6/22/07 by JR Grey. Counted by UM Tennelec S5 XLB on 6/25/07.

4. Gamma scan survey of PML Roof on 6/25 & 6/26/07 by JR Grey using instrument set No. 4.

III. Survey Measurement Data Form Location FNR Roof Max. P3 Max. Total Scan Total Gamma Surface ot Survey Removable Removabl Count Surface j3 Scan Activity Notes Point Grid Instrument Activity e Activity Rate Activity Activity (gcpm)

No. No. Set No. (cL-dpm) (836pm) (gcpm) (gcpm) (gcpm NaI)

NA 1 4 for y scan NA NA NA NA 6780 NA V\

NA 2 4 for yscan NA NA NA NA 6458 NAVi NA 3 4for scan NA NA NA NA 6320 NA NA 45 4 for y scan NA NA NA NA 7680 NA 0,-1 NA 4forscan NA NA NA NA 6900 NA -"

NA 6 4 foryyscan NA NA NA NA 5722 NA NA 7 4 for y scan NA NA NA NA 5905 NA NA 8 4 for y scan NA NA NA NA 6519 NA NA 9 4 for*y scan NA NA NA NA 6200 NA NA 10 4 foryyscan NA NA NA NA 5579 NA NA 11 4 for y scan NA NA NA NA 6128 NA NA 12 4 for -1scan NA NA NA NA 5694 NA NA 13 4 foryyscan NA NA NA NA 6011 NA NA 14 4 for y scan NA NA NA NA 6640 NA NA 15 4 for y scan NA NA NA NA 6210 NA NA 16 4 foryscan NA NA NA NA 5859 NA NA 17 4 for y scan NA NA NA NA 8322 NA y scan interf from Pool blocks below 1 18 1 for 3 TSA 2 7.44 17.09 346 290 9307 13.5 03scan on sed spot for ca TSA was 450 cpm, 9307 cpm y is from FNR wall NA 19 NA NA NA NA NA 5209 NA NA 20 NA NA NA NA NA 4663 NA 2 21 Tennelec for 1.86 32.29 332 264 4618 15.0 smears NA 22 NA NA NA NA NA 6028 NA

FNR-SP-0 17, Attachment 3 -Survey Forms Survey No.:2007-1262 Survey Unit No.7-1 Survey Pkg. SP-107 SHEET__ OF 7 3 23 Tennelec for 9.30 17.09 325 282 5281 17.0 smears NA 24 NA NA NA NA NA 6256 NA NA 25 NA NA NA NA NA 6217 NA 4 26 Tennelec for 3.72 22.79 356 216 6000 13.0 smears NA 27 NA NA NA NA NA 8512 NA NA 28 NA NA NA NA NA 7469 NA NA 29 NA NA NA NA NA 5200 NA NA 30 NA NA NA NA NA 4700 NA NA 31 NA NA NA NA NA 4703 NA NA 32 NA NA NA NA NA 5630 NA NA 33 NA NA NA NA NA 5782 NA NA 34 NA NA NA NA NA 5949 NA NA 35 NA NA NA NA NA 5912 NA NA 36 NA NA NA NA NA 6018 NA 5 37 Tennelec for 9.30 62.68 396 324 9933 9.5 y scan - effect of smears N wall of FNR NA 38 NA NA NA NA NA 6747 NA 6 39 Tennelec for 11.16 53.18 300 265 4770 14.0 smears NA 40 NA NA NA NA NA 4778 NA

'A 41 NA NA NA NA NA 4971 NA 7 42 Tennelec for 3.72 7.60 303 300 5476 12.5 smears NA 43 NA NA NA NA NA 5853 NA 8 44 Tennelec for 1.86 18.99 356 312 6368 18.0 smears NA 45 NA NA NA NA NA 5920 NA NA 46 NA NA NA NA NA 5695 NA NA 47 NA NA NA NA NA 9145 NA y scan - effect of N wall of FNR NA 48 NA NA NA NA NA 7240 NA NA 49 NA NA NA NA NA 5198 NA NA 50 NA NA NA NA NA 5084 NA NA 51 NA NA NA NA NA 5140 NA NA 52 NA NA NA NA NA 6730 NA NA 53 NA NA NA NA NA 6764 NA NA 54 NA NA NA NA NA 6924 NA NA 55 NA NA NA NA NA 6718 NA NA 56 NA NA NA NA NA 6692 NA NA 57 NA NA NA NA NA 8925 NA y scan - effect of N wall of FNR 9 58 Tennelec for 0.0 5.70 442 343 8391 24.0 on sed. deposit smears NA 59 NA NA NA NA NA 5727 NA

FNR-SP-017, Attachment 3 -Survey Forms Survey No.:2007-1262 Survey Unit No.7-1 Survey Pkg. SP-107 SHEET___ OF 7 NA 60 NA NA NA NA NA 5346 NA 110 61 Tennelec for 3.72 41.78 329 260 5926 17.0 smears NA 62 NA NA NA NA NA 6305 NA 11 63 Tennelec for 1.86 15.19 333 280 6767 18.0 481 f3TSA on smears sed deposit NA 64 NA NA NA NA NA 6216 NA NA 65 NA NA NA NA NA 6335 NA 12 66 Tennelec for 1.86 32.29 338 335 6573 18.5 smears NA 67 NA NA NA NA NA 8380 NA Yscan effect of roof parapet NA 68 NA NA NA NA NA 8419 NA y scan - effect of FNR N wall NA 69 NA NA NA NA NA 6698 NA NA 70 NA NA NA NA NA 6052 NA NA 71 NA NA NA NA NA 6012 NA*

NA 72 NA NA NA NA NA 6553 NA NA 73 NA NA NA NA NA 5822 NA NA 74 NA NA NA NA NA 6077 NA NA 75 NA NA NA NA NA 6293 NA NA 76 NA NA NA NA NA 6740 NA

,13 77 Tennelec for 9.30 55.08 344 289 8715 25.5 389 3TSA on smears sed deposit NA 78 NA NA NA NA NA 8752 NA y scan - effect of FNR N wall 14 79 Tennelec for 3.72 18.99 310 267 6480 9.5 smears NA 80 NA NA NA NA NA 6209 NA NA 81 NA NA NA NA NA 6048 NA 15 82 Tennelec for 3.72 20.89 376 264 6442 16.5 smears NA 83 NA NA NA NA NA 6172 NA 16 84 Tennelec for 7.44 20.89 356 277 5884 13.0 smears NA 85 NA NA NA NA NA 5924 NA NA 86 NA NA NA NA NA 6178 NA NA 87 NA NA NA NA NA 9064 NA y scan effect of roof parapet NA 88 NA NA NA NA NA 8366 NA NA 89 NA NA NA NA NA 7301 NA NA 90 NA NA NA NA NA 8810 NA NA 91 NA NA NA NA NA 8169 NA NA 92 NA NA NA NA NA 7419 NA NA 93 NA NA NA NA NA 7120 NA

'NA 94 NA NA NA NA NA 7091 NA NA 95 NA NA NA NA NA 7641 NA

FNR-SP-0 17, Attachment 3 -Survey Forms Survey No.:2007-1262 Survey Unit No.7-1 Survey Pkg. SP-107 SHEET (0 OF 7 NA 96 NA NA NA NA NA 7061 NA INA 97 NA NA NA NA NA 9156 NA y scan - effect of N wall of FNR 17 98 Tennelec for 1.86 17.09 324 318 6381 17.5 smears NA 99 NA NA NA NA NA 6841 NA NA 100 NA NA NA NA NA 7471 NA 18 101 Tennelec for 9.3 28.49 205 288 5770 14.0 smears NA 102 NA NA NA NA NA 6079 NA 19 103 Tennelec for 14.86 17.09. 279 263 6768 12.0 smears NA 104 NA NA NA NA NA 6386 NA NA 105 NA NA NA NA NA 6189 NA 20 106 Tennelec for 3.72 13.29 278 284 6773 12.0 smears 21 74* NA NA NA NA 252 NA 12.0 22 83* NA NA NA NA 314 NA 19.0 23 19* NA NA NA NA 295 NA 11.0 24 09* NA NA NA NA 290 NA 15.5 25 Stack NA NA NA 293 297 NA 14.0 26 Stack NA NA NA NA 231 NA NA 27 Stack NA NA NA NA NA NA 22.5 f28 58 NA NA NA NA 402 NA NA 3402 cpm on sediment I_ I deposit 29 98 NA NA NA NA 335 NA NA 3 33 5 cpm on sediment deposit 30 21 NA NA NA NA 439 NA 10.0 3439 cpm on Cooling Tower exhaust frame

31. 21 NA NA NA NA 319 NA 89.0 a 89 cpm on cool twr exh frm 32 38 NA NA NA NA 212 NA NA Cooling Tower intake frame 33 38 NA NA NA NA 222 NA NA Cooling Tower intake frame Comments:

1. Total surface beta measurements by JR Grey on 6/21/07 using instrument set No. 1.

2. Total surface alpha measurements by N Campbell on 6/21/07 using instrument set No. 2

3. Smears collected on 6/20/07 by JR Grey. Smears were counted on the UM Tennelec S5 XLB 6/21/07. The alpha MDA was reported as 5.03 dpm and the beta MDA as 22.81 dpm

4. Gamma scan survey of FNR Roof on 6/22 and 6/25/07 by JR Grey using instrument set No. 4.

5. Scan survey of Cooling Tower exhaust frame just above the steel frame with LMI 44 count rate range of 2500 to 2900 cpm. This contrasts to count rate on the roof surface of- 5000 to 6000 cpm.

6. Grids marked with asterisk designate extra judgment TSA P3 measurements. downwind from PML and FNR Stacks. . k ý -USA

+ 47st"1~

FNR-SP-017, Attachment 3 -Survey Forms Survey No.:2007-1262 SurveyUnit No.7-1 Survey Pkg. SP-107 SHEET L OF 7 IV - Sample Information Sequential Location Date & Time Material Collected Container Comments No (Grid No.) Collected Description By FNR-RF-01 PML 14,18 6/22/07 0900 Dry deposits R.Neveau 20 ml scint. Dry debris & sediment in vial local low noint from water FNR-RF-02 PML 14,18 6/22/07 0915 Dry deposits R.Neveau 20 ml scint. Replicate of FNR-RF-01 vial FNR-RF-03 FNR 63 6/22/07 0950 Dry deposits R.Neveau 20 ml scint. Dry debris & sediment in vial local low noint from water FNR-RF-04 FNR 40 6/22/07 1000 Rust & scale R. Neveau 125 ml poly Material from Cooling bottle Tower Exhaust frame FNR-RF-05 FNR 31 6/22/07 1000 Moss & lichens R. Neveau 125 ml poly Material from Cooling bottle Tower Exhaust frame FNR-RF-06 FNR 88 6/22/07 1030 Dry deposits R.Neveau 20 ml scint. Dry debris & sediment in vial local low point from water FNR-RF-07 FNR 58 6/22/07 0950 Dry deposits R.Neveau 20 ml scint. Dry debris & sediment in via local low noint from water FNR-RF-08 FNR 62 6/25/07 0800 Drain catchment R. Neveau 20 ml scint FNR roof drain debris FNR 22 6/25/07 0815 Drain catchment R. Neveau 20 ml scint FNR roof drain FNR-RF-09 debris FNR-RF-10 FNR 92, 93 6/25/07 0830 Drain catchment R. Neveau 20 ml scint FNR 3d floor roof drain FNR -_ F -10 d eb ris ___________ ro ofd rain FNR-RF-11 FNR 67 6/25/07 0845 Drain catchment R. Neveau 20 ml scint FNR 3 rd floor roof drain FNR-RF-11_ debris FNR-RF-12 FNR 58 6/26/07 0900 Dry deposits R. Neveau 20 ml poly Dry.debris & sediment in bottle local low point from water FNR-RF-13 FNR 31 6/26/07 0830 Moss & lichens R. Neveau 125 ml poly Material from Cooling bottle Tower Exhaust frame FNR-RF-14 FNR 41 6/26/07 0845 Rust & scale R. Neveau 125 ml poly Material from Cooling bottle Tower Exhaust frame FNR-RF-15 i-4 ,-27-'

AU55, pl 7,1_______

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