Text

To Safety and Mission Assurance Directorate, Plum Brook Reactor Facility Supplemental Characterization Report for the Plum Brook Reactor Facility
	ML050470048
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Site:	Plum Brook File:National Aeronautics and Space Administration icon.png
Issue date:	12/16/2004
From:	; US National Aeronautics & Space Admin (NASA), John H. Glenn Research Ctr at Lewis Field
To:	; NRC/FSME
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	Download: ML050470048 (162)
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l SAFETY AND MISSION ASSURANCE DIRECTORATE Plum Brook Reactor Facility

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SUPPLEMENTAL CHARACTERIZATION REPORT FOR THE PLUM BROOK REACTOR FACILITY Revision 0 December 16, 2004

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SAFETY AND MISSION SAFETY AND MISSION ASSURANCE DIRECTORATE Plum Brook Reactor Facility SUPPLEMENTAL CHARACTERIZATION REPORT FOR THE PLUM BROOK REACTOR FACILITY Revision 0 December 16, 2004

'I SAFETY AND MISSION ASSURANCE DIRECTORATE SUPPLEMENTAL CHARACTERIZATION REPORT FOR THE PLUM BROOK REACTOR FACILITY APPROVALS:

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In J mes Crocker Pro ect Manager, Montgomery Watson Harza

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Date heryl Leepek I

Resident Engineer, U. S. Army Corps of Engineers Date NASA Decommissioning Project Manager

NASA PBRF DECOMMISSIONING PROJECT CHANGE/CANCELLATION RECORD DOCUMENT TITLE: Supplemental DOCUMENT NO:

REVISION NO: 0 Characterization Report for the Plum Brook Reactor Facility Revision 0: Initial issue of Procedure

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Supplemental Characterization Report CONTENTS 1.0 SITE CHARACTERIZATION 1-1 1.1 OVERVIEW....................................

1-1 1.2 PREVIOUS INVESTIGATIONS....................................

1-1 2.0 CHARACTERIZATION ORGANIZATION, TRAINING, AND PROCEDURES.

2-1 2.1 TRAINING...............................................

2-1 2.2 PROCEDURES...............................................

2-1 2.3 CHARACTERIZATION SURVEY PACKAGES.....................

.......................... 2-2 2.4 SURVEY DATA MANAGEMENT SYSTEM (SDMS)............................................... 2-3 2.5 SURVEY MEASUREMENT LOCATION CODES...............................

................ 2-3 3.0 CHARACTERIZATION APPROACH...............

........... 3-1 3.1 SITE PREPARATION..................

3-1 3.2 INITIAL AREA CLASSIFICATIONS

........................ 3-1 3.3 CHARACTERIZATION SURVEY ACTION LEVELS........................................... 3-2 3.4 CHARACTERIZATION SURVEY DESIGN

........................ 3-3 3.5 INSTRUMENTATION AND SELECTION

........................ 3-4 3.6 MINIMUM DETECTABLE CONCENTRATION (MDC)........................................... 3-5 3.7 SURVEY PROTOCOLS/REQUIREMENTS

........................ 3-8 3.7.1 Alpha Surface Scans................................................. 3-8 3.7.2 Beta Surface Scans................................................. 3-8 3.7.3 Gamma Surface Scans................................................. 3-9 3.7.4 Exposure Rate Measurements.....................

............................ 3-9 3.7.5 Direct Surface Contamination Measurements/Sampling............

............ 3-9 3.7.6 Removable Contamination Measurements...........................................

3-10 3.7.7 Material Sampling................................................. 3-10 3.8 DETERMINATION OF RADIONUCLIDE DISTRIBUTION............................................ 3-10 3.8.1 Core Bore Sampling............................................... 3-10 3.8.2 Removable Surface Contamination Sampling...................................... 3-10 3.9 QUALITY ASSURANCE...............................................

3-11 Plum Brook Reactor Decommissioning Project i

Revision 0 December 16, 2004

Supplemental Characterization Report CONTENTS 4.0 CHARACTERIZATION SURVEY RESULTS.

4-1 4.1 IMPACTED STRUCTURES.......................................

4-1 4.1.1 Class 1 Structures.......................................

4-1 4.1.2 Class 2 Structures......................................

4-2 4.1.3 Class 3 Structures.......................................

4-3 4.2 NON-IMPACTED STRUCTURES

.................................... 4-3 4.3 ENVIRONS INSIDE THE PBRF FENCE 4-4 4.3.1 SurveyUnit #1 (A2400301Cx)................................

4-8 4.3.2 Survey Unit #2 (A2400 302Cx)................................

4-8 4.3.3 Survey Unit #3 (A2400 303Cx)................................

4-8 4.3.4 Survey Unit #4 (A2400 304Cx)................................

4-8 4.3.5 Survey Unit #5 (A2400 305Cx)................................

4-9 4.3.6 Survey Unit #6 (A2400 306Cx)................................

4-9 4.3.7 Survey Unit #7 (A2400 307Cx)................................

4-10 4.3.8 Survey Unit #8 (A2400 308Cx)................................

4-10 4.3.9 Survey Unit #9 (A2400 309Cx)................................

4-10 4.3.10 Survey Unit #10 (A2400 31OCx)................................

4-11 4.3.11 Emergency Retention Basin (A2100 101 Cx)................................

4-11 4.4 ENVIRONS OUTSIDE THE PBRF FENCE 4-12 4.4.1 Areas Immediately Adjacent to PBRF Fence....................................... 4-12 4.4.2 Pentolite Ditch (A2300 10lCx)......................................

4-13 4.5 PREVIOUSLY UNCLASSIFIED AREAS 4-14 4.6 DOWNGRADED CLASSIFICATIONS 4-15 4.7 SYSTEMS......................................

4-15

4.8 BACKGROUND

4-15 4.8.1 Material Background.......................................

4-17 4.8.2 Environs Background......................................

4-17 4.8.3 Background Results.......................................

4-17 Plum Brook Reactor Decommissioning Project Revision 0 December 16, 2004

Supplemental Characterization Report CONTENTS LIST OF TABLES Table 3 Characterization Survey Action Levels...............................................................

3-3 Table 3 Survey Instrumentation Used for PBRF Characterization....................................... 3-7 Table 4 Subsurface Soil Samples...............................................................

4-5 Table A Impacted Structures Characterization Data Summary............................................ A-1 Table A Environs Characterization Data Summary...........................................................

A-10 LIST OF FIGURES Figure 4 Site Environs Survey Units & Sample Locations................................................... 4-7 Figure 4 Plum Brook Station..............................................................

4-16 LIST OF ATTACHMENTS Attachment A Characterization Survey Data Summaries Attachment B Survey Data Management System Reports Reactor Building Area 4, Shop Area (Cl i i 203C1)..................................................... B-1 Reactor Building Count Room (Cliii 204C1).............................................................. B-4 Reactor Building Roof & Exterior Walls (C 1111 301 C i)............................................... B-9 Hot Laboratory Hot Cells 1-7 (Ci1 112 107C 1).............................................................. B-18 Hot Laboratory Hot and Cold Lavatory (C1 12 205C1)............................................... B-30 Hot Laboratory Roof & Exterior Walls (C1 12 301iC1)............................................... B-42 Reactor Services Equipment Building Roof & Exterior Walls (D1 131 405C1)........... B-48 Reactor Fan House Roof & Exterior Walls (C1 132 301C1)......................................... B-53 Waste Handling Building Roof & Exterior Walls (C1 133 301iC1)............................... B-59 Reactor Primary Pump House Exterior Walls (C1 134 301C2)..................................... B-65 Reactor Office & Laboratory Building Crawl Space, Area 7 (C1 141 210C1).............. B-71 Reactor Office & Laboratory Building First Floor Office Area (C 1141 211 Cl).......... B-76 Reactor Office & Laboratory Building Second Floor Offices (C I141 213C1)............. B-82 Reactor Office & Laboratory Building Roof & Exterior Walls (Ci 141 215C1).......... B-90 Environs Outside Perimeter Fence (A2500 301I1)........................................................ B-99 Plum Brook Reactor Decommissioning Project iii Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project iIii Revision 0 December I16, 2004

Supplemental Characterization Report 1.0 SITE CHARACTERIZATION 1.1 Overview This Supplemental Characterization Report presents additional information used for the classification of survey areas in accordance with applicable guidance contained in NUREG 1575. The information has been collected through ongoing facility radiological characterization efforts and contains characterization data that was not part of the original Decommissioning Plan submittal. Additional supplemental reports will be submitted as the characterization efforts continue throughout the decommissioning process.

This characterization data was collected and evaluated in accordance with site procedures that implement the PBRF Characterization Plan. The scope and objectives of the characterization program and the staff organization that manages the program are described in the PBRF Characterization Plan (MW-PL-02-004).

1.2 Previous Investigations Section 2.2 of the Decommissioning Plan describes the radiological status of the Plum Brook Reactor Facility at the start of the decommissioning project. It presents a historical site assessment of past facility operations, assesses the radiological impact of those operations, and presents the results of two radiological characterization studies performed at the facility and the conclusions that these studies produced. These studies included a radiological survey performed in 1985 by Teledyne Isotopes and a 1998 confirmatory study performed to verify the results of the 1985 study. These studies provided the basis for determining the radiological classification of survey areas that was presented in the Decommissioning Plan. These studies and initial area classifications also provided the basis for establishing the methodology that would be used in designing the Final Status Surveys for the facility and for developing a Plan for continued radiological characterization.

In approving the Decommissioning Plan, the U. S. Nuclear Regulatory Commission approved the methodology proposed for developing a Final Status Survey Plan and the methodology to be used in performing a dose pathway analysis used in establishing the DCGLs for evaluating residual radioactivity against the radiological release criteria presented in 10 CFR 20 subpart E.

The Decommissioning Plan presented preliminary site specific radionuclide DCGLs that were based on the earlier characterization data and preliminary hydro-geologic characteristics.

Plum Brook Reactor Decommissioning Project 1-1 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project I -1 Revision 0 December 16, 2004

Supplemental Characterization Report Continuing radiological characterization and a more recent site specific hydro-geologic study have resulted in changes to the classification of some of the survey areas identified in the Decommissioning Plan, classification of some areas that were not specifically classified in the Decommissioning Plan, and changes in the radionuclide DCGLs calculated for the site.

The characterization data collected since submittal of the Decommissioning Plan is included in the attachments to this report. The sections of this report that follow discuss the design of the characterization surveys, the instrumentation used in performing the surveys, and the results of those surveys. Included is a discussion of the survey results, and the impact of the results on the prior survey area classifications. This report is used to support the data and technical discussions contained in the recently submitted Final Status Survey Plan.

Plum Brook Reactor Decommissioning Project 1-2 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project 1-2 Revision 0 December 16, 2004

Supplemental Characterization Report 2.0 CHARACTERIZATION ORGANIZATION, TRAINING, AND PROCEDURES The Decommissioning Plan and the PBRF Decommissioning Project Operations Plan provide descriptions of the PBRF decommissioning team organization including position descriptions and responsibilities. The Operations Plan functions as a "roadmap" for project execution. Its purpose is to define operating procedures for the Federal Sector Team and the contractors to execute the decommissioning of the PBRF. Refer to the Decommissioning Plan and the Operations Plan for further information regarding the PBRF D&D project organization, responsibilities, and position descriptions.

MWH is providing the necessary personnel, materials, and subcontractors to perform all contracted phases of the decommissioning, including performance of the characterization survey described in the Characterization Plan. MWH performed and is continuing to perform the characterization survey in accordance with the protocols and process presented in the plan, using written survey instructions and approved procedures.

2.1 Training Specific training on the contents and requirements contained in the Characterization Plan was provided to personnel that performed surveys, collected samples, and/or handled radioactive materials in radiological areas in accordance with MW-PL-02-006, "FSS/Characterization Supervisor and Technician Training Plan". The training was provided to ensure that personnel had sufficient knowledge to perform work activities in accordance with the requirements of the Characterization Plan and the Decommissioning Plan.

2.2 Procedures Characterization survey activities were conducted in accordance with written approved procedures to ensure quality and employee and public safety. These procedures are controlled and implemented in accordance with site programs.

Procedures used to perform site characterization included the following;

PBRF-CS-001 - Characterization Sample Identification and Chain-of-Custody

PBRF-CS-002 -Data Quality Management Guidelines for Off-Site Laboratories

PBRF-CS-007 -Issue, Control and Accountability of Characterization/FSS Portable Radiological Instrumentation

PBRF-CS-01 1 - Operation of the Ludlum Model 2350 Data Logger Survey Instrument Plum Brook Reactor Decommissioning Project 2-1 Revision 0 December 16, 2004

Supplemental Characterization Report

PBRF-CS-015 - Characterization Survey Design, Package Generation and Survey Implementation

PBRF-CS-016 - Material Background Determination 2.3 Characterization Survey Packages A Characterization Survey Package was developed for each survey unit or area.

These survey package instructions were developed according to the guidance provided in MARSSIM regarding field sampling plans for radiological surveys.

The survey package instructions described the number, type, and location of direct measurements and samples with the analyses to be performed. Specific survey package instructions are developed to sufficiently address characterization survey objectives for each area to be surveyed in accordance with the characterization plan for structure surfaces, systems and environmental areas.

The survey packages are the primary method of controlling and tracking the hard copy records of survey results. Characterization survey packages were developed in accordance with PBRF-CS-015 "Characterization Survey Design, Package Generation and Survey Implementation". During the performance of the survey, the survey package(s) were updated with the results of direct measurements as well as the results of any special surveys or sample analyses performed.

Survey package development involved the performance of walk-downs and worksheet preparation. During the walk-down, details regarding the physical survey area are compiled, such as type of area (structure, system or environ),

surfaces in the area (wall, floor, ceiling, surface soil, etc.,) and metric dimensions in meters. Data from previous surveys are also reviewed and utilized as appropriate. A Characterization Survey Package contains the following:

1) A detailed description of the survey areas and/or survey units, as applicable,

2) Photographs, drawing or drawings of the survey area and/or survey units, as applicable,

3) The operational history of the survey area including summary data from previous surveys,

4) Characterization survey instructions,

5) The location codes developed uniquely for the area,

6) The types and number of survey measurements and/or samples prescribed for the survey,

7) Any survey support requirements,

8) Any health and safety requirements, Plum Brook Reactor Decommissioning Project 2-2 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project 2-2 Revision 0 December 16, 2004

Supplemental Characterization Report

9) Any RWP requirements,

10) Any specific survey instructions for abnormal conditions that may be encountered within the survey area, and

11) The survey instrument data downloads and sample analysis report hard copies.

A combination of photographs and drawings is developed for each survey package depicting each survey unit. The survey area/unit drawings are annotated with the location of the characterization survey measurements. Implementation, completion and review signature blocks in the survey packages are used to initiate and track the progress of the characterization surveys. Prior to implementing the survey package instructions, the FSS/Characterization Manager as well as the USACE Health Physicist review and approve each survey package. Following completion of the survey implementation, data analysis, and evaluation, the survey packages were reviewed to ensure that the data satisfied the survey objectives.

2.4 Survey Data Management System (SDMS)

A Survey Data Management System was developed to assist in managing the data generated during site characterization survey, post remediation survey, and final status survey operations. The SDMS has a modular structure that incorporates a database (DB) storage repository to include folders, file structure, and DB tables for each function of the process. Survey data collected during the project was downloaded from survey instruments into database tables specific to each measurement type for storage, analysis, and reporting.

2.5 Survey Measurement Location Codes To facilitate database queries and reporting utilizing the SDMS, each characterization survey measurement and sample collected was assigned a unique survey measurement Location Code (LC). The LC system also provided for measurement traceability back to a specific location on a survey area drawing and a marking at the location where the survey measurement or sample was taken. A combination of the first two location codes is the designation for the survey unit and the location of the measurement. The four remaining 5 character sections designate the area classification, the material to be surveyed, the type of surface, the type of measurement, the detector used, and the location of the measurement.

Plum Brook Reactor Decommissioning Project 2-3 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project 2-3 Revision 0 December 16, 2004

Supplemental Characterization Report 3.0 CHARACTERIZATION APPROACH Survey categories for site characterization are designated as surfaces and structures, systems, and environs (surface and sub-surface soils, sediments and groundwater) for both "impacted" and "non-impacted" locations based on the likelihood of the area being contaminated.

Radiological characterization surveys were performed prior to decontamination/

remediation activities within individual survey units to the extent practicable. The characterization data obtained will allow finalization of both planned remediation activities and waste management planning, the development of the FSS Plan and design of post-remediation and final surveys for each area. The site characterization survey includes both scans, direct measurements, and media samples of structural surfaces, scan surveys of surface soils, and collection and analysis of both surface and subsurface soils. Measurements and samples were collected to define the lateral and vertical extent of the contamination based on the results of initial surveys. The characterization surveys are designed, performed, evaluated, and documented in accordance with guidance provided in MARSSlIM.

3.1 Site Preparation In support of performing characterization surveys, facility surfaces and land areas were cleared of all loose equipment and materials to the maximum extent possible using RP work instructions and existing approved procedures. Materials showing detectable radioactivity were placed into appropriate radioactive waste containers for either disposal at a low level radioactive waste disposal site or to be sent to a licensed waste processor for further processing in accordance with the Waste Management Plan and procedures. In environmental survey areas, the area was cleared of debris and/or vegetation to eliminate physical obstructions.

Characterization survey package instructions included measurements and samples for any remaining loose equipment or materials in an area.

3.2 Initial Area Classifications Based upon the operational history of the PBRF buildings and the surrounding area, most of the facility was considered to be impacted with a few areas initially classified as non-impacted. All areas that were known to require decontamination (or remediation) were classified as Class 1 areas. Some of the surrounding support areas were classified as either Class 2 or 3. Non-impacted areas are adjacent to the Class 2 or Class 3 areas.

Plum Brook Reactor Decommissioning Prolect 3-1 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project 3-1 Revision 0 December 16, 2004

Supplemental Characterization Report Surveys performed in 1985 and 1998 identified Class 1 impacted areas containing radioactive contamination at levels that will require decontamination prior to subsequent final status survey. The primary purpose of performing additional characterization surveys in areas of known radiological contamination is to bound the nature and extent of the contamination. Characterization survey locations selected in these areas were biased based upon the previous 1985 and 1998 survey results. Survey designs developed for areas classified as either non-impacted or impacted Class 2 or Class 3 included a combination of systematic and biased direct survey measurements and area scans to supplement what was already known about the radiological condition of the areas.

To facilitate site characterization, the PBRF buildings and site were divided into characterization survey areas based on each major structure or land area. These survey areas were then subdivided into survey units in a manner to minimize logistical concerns and optimize work flow. Minimal consideration was given to maintaining the total surface area (quantity of surface requiring evaluation) within survey unit size guidelines provided in MARS SIM. Instead the survey unit designation, when practicable, focused on the operational history within the survey area to assign units within each survey area. The survey areas and preliminary characterization survey units for the PBRF site are listed in Table A-1. The initial classification associated with each survey area was based upon the Decommissioning Plan. Each survey area and unit was assigned a unique number (Survey Package ID) to facilitate handling of information and data via the SDMS database.

3.3 Characterization Survey Action Levels In accordance with the Decommissioning Plan, DCGLs were used to determine the Action Levels for non-radionuclide specific direct measurements of radioactive contamination. The Action Levels are necessary to facilitate the appropriate acquisition of meaningful direct measurements in the field. These action levels were used to guide characterization efforts with regard to bounding the vertical and lateral extent of detected radioactive contamination. The interim site-specific DCGLs presented in the Decommissioning Plan for volumetric material samples (surface soils & sediments) were used as action levels for bulk media samples. These action levels are presented in Table 3-1.

Generally, the Action Levels for scan surveys were established at 50% of the interim site-specific DCGLs. However, technicians were instructed to identify any sustained count rates above background for follow-up surveys and/or sampling.

Plum Brook Reactor Decommissioning Project 3-2 Revision 0 December 16, 2004

Supplemental Characterization Report When conducting characterization activities for the Pentolite Ditch environs the action level for gamma scans of surface soils was further refined to 3,000 cpm above background. This count rate corresponded to a scan MDC of approximately 7 pCi/g for Cs-137, which corresponds to slightly less than 50% of the interim site specific DCGL from the Decomnmissioning Plan. Any areas that were identified as being above this action level were identified for follow-up surveys and sampling.

Table 3-1, Characterization Survey Action Levels Direct Measurements on Structural Surfaces l

Interim Site Specific DCGL I from Decommissioning Plan o

60Co 16,000 dim 1OOcm2 241p~617 J dpm/lOOcm' Volumetric Material Samples Interim Site Specific DCGL from Decommissioning Plan

_CS_

18 pCi/g 60CO 4.6 pCi/g 9OSr 32 pCi/g 3.4 Characterization Survey Design Characterization survey results will be used to determine the estimated standard deviation (used to calculate the relative shift) for FSS in accordance with MARSSIM section 5.5.2.2. MARSSIIM recommends a survey population of 5 to 20 as sufficient to successfully establish this parameter. For performance of characterization surveys at the PBRF, a minimum survey population of eight sample locations was chosen. The method chosen to determine measurement and sample locations used a systematic approach, with additional biased "bounding" measurements collected, as necessary.

Alpha and beta scans and direct measurements for total surface contamination as well as smear samples for removable alpha and beta surface contamination were acquired for the characterization of building structural, system and equipment surfaces. Areas of elevated count rate identified during the scans received additional direct measurements and samples. The degree of scan surveys performed in Class 1 open land and structural survey areas varied between survey areas. The basis for the scan coverage was the effort sufficient to allow for the adequate bounding of areas of radiological contamination within these areas and to provide sufficient radiological information to develop waste volume estimates and remediation plans. In Class 2 and 3 areas, the function of the scan survey provides for the discovery of radiological contamination versus bounding and as such, required a more extensive scan survey effort. Scan survey coverage Plum Brooky Reactor Decommissioning Project 3-3 Revision 0 December 16, 2004

Supplemental Characterization Report implemented to support the characterization of Class 2 & 3 open land and structural survey areas/units was sufficient to give reasonable assurance that all radioactive materials within these areas had been identified. Judgmental emphasis was given to scanning areas that based upon operational history or inherent processes would have a high probability of exhibiting radiological conditions in excess of the action levels if any areas were to exist.

3.5 Instrumentation and Selection The criterion for selecting radiological survey instrumentation and detectors was based upon the assurance that an instrument's detection sensitivity was sufficient to detect the radionuclides of concern at or below minimum detection requirements. Data Logger instrumentation was employed with a variety of detectors for direct measurements of alpha and beta surface contamination as well as exposure rate measurements. The Data Logger is a portable micro-processor computer based counting instrument capable of operation with NaI(Tl) gamma scintillation, plastic scintillation, gas-flow proportional, G-M, and ZnS scintillation detectors. The instrumentation used for characterization is presented in Table 3-2.

Detector selection depended upon the type of survey, surface contour and survey area size. Large area (125 cm2) alpha and beta scintillation detectors were typically used for both direct alpha and direct beta measurements. The 15.5 cm2 G-M detector was used for direct beta measurements in smaller areas where the large area beta detector did not fit and in areas of high background where a shielded detector was required. Exposure rate measurements and gamma scans were performed using 2"x 2" NaI (TI) gamma scintillation detectors.

The majority of smear sample counting and analysis for removable alpha and beta contamination was performed using a low background automatic gross alpha/beta counter. Tritium smear sample counting and analysis was performed using a quench corrected liquid scintillation counter. The liquid scintillation counter could also be setup, calibrated, and utilized for counting other hard-to-detect radionuclides suspected or known to be present at the PBRF. Samples for gamma isotopic analysis were counted and analyzed using a high purity germanium (HPGe) gamma spectroscopy system. Samples that were analyzed by gamma spectroscopy included soil, sediment, water, filters or smears, and various other bulk materials such as concrete and asphalt.

All data loggers, associated detectors and all other portable instrumentation used for characterization were calibrated in accordance with applicable, approved procedures using National Institute of Standards and Technology (NIST) traceable sources and calibration equipment. Calibration labels showing the Plum Brook Reactor Decommissioning Project 3-4 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project 3-4 Revision 0 December 16, 2004

Supplemental Characterization Report instrument identification number, calibration date and calibration due date are attached to all portable field instruments.

3.6 Minimum Detectable Concentration (MDC)

The MDCs for the detectors used during the characterization survey were adjusted to approximately equal to or less than 50% of the applicable action level. Two different types of MDCs were utilized, one for direct surface contamination measurements, MDCs*f, and one for field scanning of surfaces, MDCsa.. These are calculated differently and each was incorporated into the survey instructions as appropriate. The equation used for calculating the MDCstti, for direct measurements using field instrumentation is as follows:

-+

3.29

+

MtDC ts tb E (

)4 100 Where: MDCstaic Minimum Detectable Concentration (dpm/100 cm 2)

Rb

=

Background Count Rate (cpm) tb

=

Background Count Time (min) ts

=

Sample Count Time (min)

A

=

Detector Area (cm2 )

E

=

Detector Efficiency (c/d)

The equation used to calculate the MDCsc,, for surfaces is as follows:

d' *

/ 6 MDCscan =_l_

A Ei*Es*VP* A Where: MDCs.

=

Minimum Detectable Concentration (dpm/100 cm2) d' Decision error taken from Table 6-5 of MARSSIM i

=

Observation counting interval (scan speed divided by the detector width) bi

=

Background count per observation interval Ei

=

Detector Efficiency (c/d), (21I efficiency per ISO-7503)

Plum Brook Reactor Decommissioning Project 3-5 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project 3-5 Revision 0 December 16, 2004

Supplemental Characterization Report Es Surface Efficiency (typically around 50% for beta contamination on concrete) p Surveyor Efficiency (typically 50%)

A Detector Area (cm2)

NOTE: In alpha scanning situations with very low alpha background (around one to three counts-per-minute), the guidance and methods contained in MARSSIM Appendix J are more applicable for determining Alpha MDC,,.. However, no such low-background situations were encountered in areas that required alpha scans during characterization activities.

For scanning soil with a sodium iodide gamma detector, the MDCs,,, values presented in Table 6.7 of MARSSIM were used. According to NUREG-1727, the MDCsC, values presented in Table 6.7 of MARSSIM provide an acceptable estimate of MDCsca, for the survey.

The MDC for the gamma spectral analysis of soil was based on sample count times sufficient to detect at 50% or less of the volumetric action level specified in Table 4-1. The gamma spectroscopy system was operated such that for 60Co and 13 7Cs, a MDC of less than 0.5 pCi/g was maintained. The MDC for the alpha/beta smear counter was based on sample count times sufficient to detect at 5% or less of the structural surface action level specified in Table 4-1. The MDC for the liquid scintillation counter for analysis of tritium contamination was based on sample count times sufficient to detect at 5% or less of the interim site-specific DCGL for tritium specified in the Decommissioning Plan.

Plum Brook Reactor Decommissioning Prolect 3-6 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project 3-6 Revision 0 December 16, 2004

Supplemental Characterization Report Table 3-2, Survey Instrumentation Used for PBRF Characterization Instrument/

Detector Type Radiation Calibration I

Detector Type Detected Source Use Ludlum Model Platic Scnila Direct beta 2350-1 with 44-116 Pl25 cm)

Beta "Tc measurements and detector beta scan surveys.

Ludlum Model ZnS Scintillator Direct alpha 2350-1 with 43-90 2

Alpha measurement detector (125 cm2) surveys.

Ludlum Model Large area gas-99T Floor Monitor 2350-1 with 43-37 flow proportional Alpha and/or beta 23OTh((X) detector for beta detector (582 cm2) scan survey.

Ludlum Model Shielded GM Direct beta 2350 with. 4440 99Tc (,3) surveys; detector or equal (15.5 cm2)Beta Beta scans.

Ludlum Model Gamma exposure 2350 with. 44-10 Nai (Tl)

G 37Cs (m)mrate and gamma detector or equal scans.

Thermo Hand-E StltIandB 99 Tc Count ZnS Scintillator Alpha and Beta 230Th ((a)

Smear counting 99Tc(P),Smear and air Tennelec S5-XLB Gas Proportional Alpha and Beta 2307b ((o),

Sme antir Protean Planchet Shielded Gas-flow 99Tc (,3),

Counter proportional Apha and Beta 23 Th (Smear counting Packard Liquid Photo-multiplier Low Energy Beta, H

Tritium Smear Scintillation tube (PMT) and including Tritium

'4C (

fcouti Counter or Equal Liquid Scintillator and C-14 63Ni*

countng ORTEC IPGe Nuclide detector based HG Gamma energy M d identification and Gamma e

and intensity ixe gamma quantification of Spectrometer media samples.

After January 1,2005, the Packard liquid scintillation counter will be setup for 63Ni.

Plum Brook Reactor Decommissioning Project 3-7 Revision 0 December 16, 2004

Supplemental Characterization Report 3.7 Survey Protocols/Requirements The characterization survey of building surfaces consisted of surface scans (beta and gamma); direct alpha and direct beta measurements, and smears for removable gross alpha, removable gross beta and, in some cases, tritium analysis.

The characterization survey of the asphalt-paved areas consisted of surface scans (beta and gamma) and direct alpha and direct beta measurements. The survey of the facility grounds consisted of gamma scans and soil sampling for gamma spectroscopy analysis. Surveys were performed as follows:

3.7.1 Alpha Surface Scans Alpha scans were only performed in areas where there was previous knowledge of alpha contamination. That knowledge was gained either through previous characterization activities or ongoing operational health physics surveys. Alpha scans were generally performed on 100% of concrete and tile floor surfaces. However, in at least one characterization package, the lower walls (walls to two meters) were also scanned. The scans were performed using a Ludlum 2350 Data Logger with either a Ludlum 43-90 probe (125 cm2 zinc sulfide scintillator covered with 0.8 mg/cm2 aluminized mylar) or a Ludlum 43-37 probe (582 cm2 gas flow proportional detector covered with 0.8 mg/cm2 aluminized mylar).

Technicians listened to the data logger's audible output while simultaneously observing the digital readout for any indications of elevated counts. Scans were performed holding the detector 1/4" from the surface and moving at the rate of one detector width every two seconds.

All areas of elevated contamination were identified for further evaluation.

3.7.2 Beta Surface Scans Beta scans were performed as instructed in each survey package over accessible floor, wall, and ceiling interior surfaces; exterior walls and roofs; and asphalt and concrete paved areas typically using a large area (125 cm2) plastic scintillator. In some case, a large-area (582 cm ) gas proportional detector was used for large floor and roof areas. Generally, in Class 1 areas 100% of accessible surfaces were scanned. In Class 2 areas at least 50% of accessible surfaces were scanned. The amount of surface area scanned in Class 3 areas varied. In all cases, biased scans were performed to provide sufficient assurance that areas of potential residual radioactivity were identified. Technicians listened to the data logger's audible output while observing the instrument readout for any indication of elevated counts. Beta scans of surfaces were typically performed holding the detector approximately 1/4 inch to 1/2 inch from the surface and moving the detector at a rate of one detector width per second over the Plum Brook Reactor Decommis.ioning Project 3-8 Revision 0 December 16, 2004 Plum Brookc Reactor Decommissioning Project 3-8 Revision 0 December 16, 2004

Supplemental Characterization Report area. All areas of elevated contamination were identified for further investigation and potential decontamination.

3.7.3 Gamma Surface Scans Gamma scans were performed as instructed in each survey package. Scans were performed in some inside areas and in all outdoor soil areas of the PBRF, above the surfaces of soils, floors, building roofs, as well as outside buildings around asphalt and concrete paved areas and immediately around the buildings. Typically, a 2"x 2" NaI (TI) gamma scintillation detector was used with a data logger to help identify any areas of residual contamination in the soil or the building interior. When scanning, the detector was moved in a serpentine manner in close proximity with the surface while listening to the audible output of the instrument. The digital display readout was also observed for any elevated counts detected. Any areas where a noticeable increase in the count rate was detected were flagged for further investigation and/or sampling.

3.7.4 Exposure Rate Measurements Exposure rate measurements were performed as instructed in each survey package inside the facility structures above the floor, and outside the building around the asphalt and concrete paved areas and around the buildings. A 2"x 2" NaI (Tl) gamma scintillation detector was used with the data logger to help identify any areas of residual contamination in the soil or the building interior. The exposure rate measurements were performed at survey measurement locations on building floors and the outside grounds with the detector 1 meter above the surface and no closer to 1 meter proximity with any other surface. The exposure rate measurement count time was integrated for 15 to 60 seconds as required by survey package instructions.

3.7.5 Direct Surface Contamination Measurements/Sampling Direct surface contamination measurements, for total alpha contamination and total beta contamination, were taken on the structural surfaces of the buildings and on concrete or asphalt paved areas within each survey area/unit as instructed in each survey package. The direct alpha and direct beta measurements were typically performed using large area (125 cm2) scintillation detectors in combination with a data logger instrument. Direct alpha measurements were generally performed at 10% of the beta survey locations if the direct beta survey results indicated greater than 1,000 dpm/l 00cm2.

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Supplemental Characterization Report 3.7.6 Removable Contamination Measurements Smears were taken for removable alpha and beta analysis at each direct beta contamination measurement location as instructed in each survey package. Smears were taken by applying moderate pressure to the smear and wiping the smear over an area of approximately 100 cm2. Smears were taken for removable tritium analysis at direct beta contamination measurement locations as instructed in each survey package. Tritium smears were first moistened with deionized water and then, with light pressure, wiped over an area of approximately 100 cm2. The smear was then placed into a 20 ml scintillation vial for subsequent preparation and analysis according to approved procedures.

3.7.7 Material Sampling Material samples including concrete cores, roofing materials, soil, sediment, and sludge were collected as instructed in each survey package.

Approximately one to two liters of material were collected, dried, homogenized, and sieved. The on-site gamma spectroscopy system was used for analyses of samples.

3.8 Determination of Radionuclide Distribution Core bore and removable structural surface contamination sampling was performed to determine the depth of fixed contamination and establish the attendant radionuclide profiles for use in dose assessments, DCGL development, and Final Status Survey planning.

3.8.1 Core Bore Sampling Core bore sampling for concrete covered surfaces involved the use of a core drill with a 3-inch diameter diamond bit. The cutting of the concrete was performed with water applied to the cutting bit so as not to overheat and preserve the cutting surface.

3.8.2 Removable Surface Contamination Sampling Smear samples were taken for removable alpha, beta, and tritium analysis.

Smear samples were collected in accordance with the methods described in section 4.7.6, above.

Samples were subsequently analyzed using either the onsite gamma spectroscopy system or sent to an off-site laboratory for full isotopic analysis. Analyses results and illustrations depicting the locations of all core bores and smear samples are provided in Attachment A to the Final Status Survey Plan.

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Supplemental Characterization Report 3.9 Quality Assurance This PBRF Characterization Plan was developed according to the essential elements of the quality assurance and quality control (QA/QC) program for the PBRF decommissioning and is subject to the PBRF Quality Assurance Plan, QA-O1. The QA/QC program elements for the PBRF D&D are as follows:

1) Establishment/implementation of plans, procedures, and protocols for the field operations,

2) Actions to assure that the procedures are understood and followed by the implementing staff, and

3) Documentation of the data collected.

The specific QA/QC program components applied for the characterization are as follows:

1) Selection of personnel,

2) Establishment of project plans and procedures,

3) Documentation of survey data and sample analyses,

4) Personnel training,

5) Selection of appropriate instruments to perform the surveys,

6) Proper instrument calibration and daily functional checks, and

7) Management oversight of characterization activities relative to the adherence to procedures, protocols, and documentation requirements.

Details of these elements are set forth in the implementing procedures used during characterization. The day-to-day characterization operations and the associated data acquisition and recording were guided and conducted in compliance with these QA/QC requirements.

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Supplemental Characterization Report 4.0 CHARACTERIZATION SURVEY RESULTS 4.1 Impacted Structures 4.1.1 Class 1 Structures Class 1 areas are defined as areas that have, or had prior to remediation, a potential for radioactive contamination (based on site operating history) or known contamination (based on previous contamination surveys) above the DCGL. Examples of Class 1 areas include:

1) site areas previously subjected to remedial actions,

2) locations where leaks or spills are known to have occurred,

3) former burial or disposal sites,

4) waste storage pits, and

5) areas with contaminants in discrete solid pieces of material and high specific activity.

The following structures are considered to be Class 1. Illustrations depicting facility area designators and survey area classifications can be found in Attachment D of the Final Status Survey Plan for the Plum Brook Reactor Facility.

Containment Vessel: Areas 2 and 17, Quads A-D, Canal E, Sub-Pile Room, Elevator Pit, and Stairwells

Reactor Building: Areas 1, 20, 21, 22, and 33, and Canals F, G, and H

Hot Laboratory Building Cells 1 - 7, the mezzanine above all seven cells, Cold Work Area & Air Lock, Manipulator Repair Shop, Lavatory Areas, Hot Work Area, Hot Handling Area, Canal J, Canal K, Hot Dry Storage, Decontamination Areas, Room 27 Mezzanine, and Hot Pipe Tunnel

Services Equipment Building Cold Pipe Tunnel, part of Room 19A (Chemical Storage), and part of Area 1.

Primary Pump House Rooms 1-8

ROLB Utility Tunnel, New Fuel Vault, and 2nd Floor Lab

Fan House interior

Waste Handling Building interior

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Supplemental Characterization Report Summaries of available characterization data for these areas are provided in Attachment, Table A-1. Reactor Building Areas 1, 20, 21, and 22; Hot Laboratory Cold Work Area and Hot & Cold Lavatory; PPH Rooms 1-8; and ROLB New Fuel Vault and 2nd Floor Offices/Lab were initially Class

2. The ROLB Utility Tunnel was unclassified previously.

4.1.2 Class 2 Structures Class 2 areas are defined as areas that have, or had prior to remediation, a potential for radioactive contamination or known contamination, but are not expected to exceed the DCGL. To justify changing the classification from Class 1 to Class 2, there should be measurement data that provide a high degree of confidence that no individual measurement would exceed the DCGLw. Other justifications for reclassifying an area as Class 2 may be appropriate based on site-specific considerations. Examples of areas which may be classified as Class 2 areas include:

1) locations where radioactive materials were present in an unsealed

form,

2) potentially contaminated transport routes,

3) areas downwind form stack release points,

4) upper walls and ceilings of buildings or rooms subjected to airborne radioactivity,

5) areas handling low concentrations of radioactive materials, and

6) areas on the perimeter of former contamination control areas.

The following structures are considered to be Class 2:

Reactor Building Mezzanine Offices and Roof

Hot Laboratory Roof, Vestibule and First Floor Office

ROLB Northeast, Southeast and Middle Stairwells, Elevator Areas, Areas 11, 14, 15, and 16, Instrument Areas, parts of Rooms 109-111, parts of Rooms 121-126, first-and second-floor Restrooms, first-floor Lavatory and Janitor's Closet, Pipe Chase, Rooms 112-116, parts of Rooms 117-120, first-floor East-West Hallways, and Roof

Fan House Building Roof and Exterior Walls

Waste Handling Building Roof and Exterior Walls

WEMS

SEB Roof, Mezzanine (Area 14 and Room 19) and 1st Floor (except shop and equipment room)

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Supplemental Characterization Report Summaries of available characterization data for these areas are provided in Attachment, Table A-1. The Primary Pump House Exterior Walls &

Roof was previously Class 3. All other areas were previously classified as impacted, Class 2.

4.1.3 Class 3 Structures Class 3 areas are defined as any impacted areas that are not expected to contain residual activity, or are expected to contain levels of radioactivity at a small fraction of the DCGLW, based on site operating history and previous radiological surveys. Examples of areas which may be classified as Class 3 include:

1) buffer zones around Class 1 or Class 2 areas, and

2) areas with very low potential for residual contamination but insufficient information to justify a non-impacted classification.

The following areas are considered to be Class 3:

Reactor Building Count Room, Area 4, and Exterior Walls

Hot Laboratory External Walls 1st Floor Offices, Conference Room, 2nd Floor Offices, Crawl Space, and Exterior Walls

SEB Mezzanine, Pit Area and Shop & Storage, Basement Auxiliary Equipment Room, Water Treatment Pump Room, Clear Well Area, Pit Area and Electrical Room.

Reactor Security Building Summaries of available characterization data for these areas are provided in Attachment, Table A-1. The Reactor Building Count Room and Area 4 and ROLB 2nd Floor Offices, and Crawl Space were originally Class 2.

The Reactor Security Building was unclassified previously.

The Reactor Precipitator (1157) was initially classified as a Class 3 structure. This structure has been demolished, leaving only the concrete base.

4.2 Non-Impacted Structures The Reactor Service Equipment Building (1131), Reactor Gas Services Building (1135), Reactor Water Tower (1151), Reactor Substation (1161), Reactor Security Building (1191), Reactor Compressor Building (1136), Reactor Cryogenic and Gas Supply Farm and Building (1195 & 9837), and Reactor Gas Storage Structure (1196) were initially classified as non-impacted structures. With the exception of Plum~~~~~~~~~~ ~~

~~

~

Bro Recoeomsinn rjc 43Rvso eebr1,20 Plum Brook Reactor Decommissioning Project 4-3 Revision 0 December 16, 2004

Supplemental Characterization Report the Reactor Substation (1161), Reactor Service Equipment Building (1131) and Reactor Security Building (1191), these structures have been demolished and disposed of, leaving only the base concrete foundations.

All equipment, i.e., transformers, panels, etc., have been removed from the Reactor Substation (1161). The underground structure beneath the Reactor Substation has not yet been characterized.

Based on characterization results, all areas of the Reactor Service Equipment Building (1131) have been reclassified as Class 1, 2, or 3. The Reactor Security Building (1191) has been reclassified as Class 3. Consequently, there are no remaining PBRF structures that are considered non-impacted.

4.3 Environs Inside the PBRF Fence Survey Area 2400 (A2400) encompasses all open land areas inside the Plum Brook Reactor Facility (PBRF) fence line. This survey area includes open land areas and paved surfaces such as roads and lay down areas. The fenced area is approximately 27 acres. A portion of the Storm Drain System traverses many of the survey units approximately four feet below grade.

A2400 was divided into ten (10) survey units of similar size. Within each survey unit, 100% of the accessible land areas were scanned for gamma radiation.

Contact and one-meter gamma measurements and surface soil samples were conducted in each identified location. Subsurface soil sampling was also conducted within each survey unit.

Subsurface soil sample locations were selected in the following manner:

A sample was collected at biased locations that were identified as a former spill location.

A sample was collected at biased locations that were identified during surface soil sampling.

Samples were collected randomly in FSS Class 3 areas in accordance with MARSSIM guidelines.

Samples were collected using a random start location and triangular grid pattern in FSS Class 1 and Class 2 areas in accordance with MARSSIM guidelines.

Duplicate samples were collected within each survey unit at a frequency of 1 duplicate sample for every 20 samples collected.

Generally, surface and subsurface soil samples were collected at each location to groundwater or refusal.

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Supplemental Characterization Report Each four (4) foot tube of soil was identified as an individual sample and typically the first one (1) foot below the top 6 inches (15 cm) and the last one (1) foot of soil above groundwater or refusal, was analyzed onsite by gamma spectroscopy.

Samples near a subsurface system or structure were also identified for analysis.

Once the samples were analyzed, and activity above the action level was identified (50% of the Unity Test), then adjacent vertical samples from the same location were selected for gamma spectroscopic analysis to determine the vertical extent of the elevated activity.

The estimated total number of sample locations, estimated total number of samples to be analyzed and the estimated total number of samples collected for each area are provided in the table below:

Table 4-1, Subsurface Soil Samples Estimated Total Estimated Estimated Number Number of Area Number of of Samples to be Sampes Locations Analyzed Collected SurveyUnit 1 14 28 112 Survey Unit 2 27 54 216 Survey Unit 3 47 94 376 Survey Unit 4 12 24 896 Survey Unit 5 43 86 344 Survey Unit 6 114 228 912 Survey Unit 7 42 84 336 Survey Unit 8 67 134 536 Survey Unit 9 45 90 360 Survey Unit 10 14 28 112 O/S PBRF 20 40 160 F en c e__

ERB 30 60 240 Pentolite Ditch 24 48 192 Total 499 998 3,992 An illustration depicting site environs survey units and sample locations is provided in Figure 4-1, below.

The Emergency Retention Basin (ERB) (A2100) was initially classified as Class 1 and surveys indicate that the classification is justified.

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Supplemental Characterization Report The following surveys and sampling have been performed or are currently being performed for the PBRF Environs (A2400) and the ERB (A2100):

The entire accessible land surface areas of A2100 and A2400 have been scanned for gamma radiation.

415 surface soil samples have been collected and measured in the onsite laboratory by gamma spectroscopic analysis.

Approximately 480 out of 499 subsurface soil sample locations have been collected and to date 234 samples have been analyzed onsite.

The specific survey unit characterization summary information is provided in the following sections.

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I Supplemental Characterization Report Figure 4-1, Site Environs Survey Units & Sample Locations 0

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Supplemental Characterizzation Report 4.3.1 Survey Unit #1 (A2400 301Cx)

Survey Unit #1 consists of the far southwest portion of the fenced in area of PBRF.

Forty-eight (48) surface soil samples were collected. To date, 19 subsurface soil samples have been analyzed from Survey Unit #1. Sample analysis results are provided in Attachment A, Table A-2.

4.3.2 Survey Unit #2 (A2400 302Cx)

Survey Unit #2 consists of the far southeast portion of the fenced in area of PBRF.

Fifty-one (51) surface soil samples were collected. To date, 32 subsurface soil samples have been analyzed from Survey Unit #2. Sample analysis results are provided in Attachment A, Table A-2.

4.3.3 Survey Unit #3 (A2400 303Cx)

Survey Unit #3 encompasses the open land areas in the middle southwest portion of the fenced in site.

A radioactive materials area is located in the northeast section of the survey unit. The radioactive materials area is used as a staging area for waste containers awaiting shipment.

Contact and one-meter gamma measurements and surface soil samples were conducted in each identified location. The maximum contact gamma measurement was 230.4 micro-Roentgen/hour (puR/hr) taken at location #3 on the south side of the WHB pad. The maximum one-meter gamma measurement was 351.4,uR/hr, also taken at location #3. Additionally, forty-seven (47) surface soil samples were collected and analyzed by gamma spectroscopy.

To date, 64 subsurface soil samples have been analyzed from Survey Unit

3. Sample analysis results are provided in Attachment A, Table A-2.

4.3.4 Survey Unit #4 (A2400 304Cx)

Survey Unit #4 encompasses the open land in the middle southeast portion of the fenced area. The northern two-thirds of the ERB are located within the survey unit boundary along the south side. The basin is not included as part of this survey unit. However, the dike surrounding the northern ERB is included in this survey unit.

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Supplemental Characterization Report Eight (8) elevated areas were identified during gamma scan and thirty-two (32) additional locations were identified for follow-up surveys and sampling. The maximum contact gamma measurement was 13.90 AR/hr.

The maximum one-meter gamma measurement was 14.57 pR/hr.

Additionally, forty (40) surface soil samples were collected and analyzed by gamma spectroscopy.

To date, 23 subsurface soil samples have been analyzed from Survey Unit

4. Sample analysis results are provided in Attachment A, Table A-2.

4.3.5 Survey Unit #5 (A2400 305Cx)

Survey Unit #5 encompasses the open land in the mid-west portion of the fenced area. The survey unit borders Line 2 road to the west. The Hot Retention Area (HRA), the Reactor Fan House (FH), the WHB, the Reactor Security Building (RSB) and a portion of the Reactor Hot Laboratory Building (HLB) cover a large portion of the area of this survey unit.

As a result of the scan, no areas of elevated gamma radiation were identified during the survey. However, field notes indicate that gamma scans were not conducted in all areas due to elevated background radiation levels that were present in the north and east portions of the survey unit.

The elevated background radiation levels are due to the proximity of the WEB and its associated operations. The maximum contact and 1-meter gamma measurements were 98.97 and 199.11 ILR/hr respectively. Forty-five (45) surface soil sampling locations were identified throughout the survey unit. Sample analysis results are provided in Attachment A, Table A-2.

To date, no subsurface soil samples have been analyzed from Survey Unit

5.

4.3.6 Survey Unit #6 (A2400 306Cx)

Survey Unit #6 encompasses the open land in the mid-east portion of the fenced area. The Reactor Cold Retention Basins (CRB) resides in the northwest comer of this survey unit. The location of the former Reactor Substation also resides along the north survey unit border.

As a result of the scan, one area of elevated gamma radiation was identified west of the CRB. The maximum contact and 1-meter gamma measurements were 32.51 and 18.35 AtR/hr respectively. Forty-four (44) surface soil sampling locations were identified throughout the survey unit.

Sample analysis results are provided in Attachment A, Table A-2.

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Supplemental Characterization Report To date, no subsurface soil samples have been analyzed from Survey Unit

6.

4.3.7 Survey Unit #7 (A2400 307Cx)

Survey Unit #7 encompasses the open land areas in the middle northwest portion of the fenced-in site. The ROLB, RB, PPH, GSB and part of the HLB reside within this survey unit.

The maximum contact and 1-meter gamma measurements were 65.48 and 84.54,uR/hr respectively. Twenty (20) surface soil sampling locations were identified throughout the survey unit. Sample analysis results are provided in Attachment A, Table A-2.

Subsurface soil samples are currently being collected. To date, no subsurface soil samples have been analyzed from Survey Unit #7.

4.3.8 Survey Unit #8 (A2400 308Cx)

Survey Unit #8 encompasses the open land in the middle northeast portion of the fenced area. Several large structures are included in this survey unit, including the SEB, the Cooling Tower foundation, a portion of the Reactor Precipitator, a portion of the Reactor Sludge Settling Basins (SSB) and a portion of the CRB.

As a result of the gamma scan, five (5) areas of elevated gamma radiation were identified. The maximum contact and 1-meter gamma measurements were 77.60 and 19.17 PR/hr respectively. Forty-five (45) surface soil sampling locations were identified throughout the survey unit. Sample analysis results are provided in Attachment A, Table A-2.

To date, no subsurface soil samples have been analyzed from Survey Unit

8.

4.3.9 Survey Unit #9 (A2400 309Cx)

Survey Unit #9 encompasses open land areas in the northern portion of the fenced site area. Several paved areas and small structural foundations are located within the unit. The survey unit borders the north fence line of the site between the east and west boundaries. A portion of the Reactor Precipitator and the SSB reside in this survey unit.

As a result of the gamma scan, no area of elevated gamma radiation was identified. The maximum contact and 1-meter gamma measurements were 49.45 and 51.52 /iR/hr respectively. Forty-two (42) surface soil sampling locations were identified throughout the survey unit: Sample analysis results are provided in Attachment A, Table A-2.

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Supplemental Characterization Report To date, no subsurface soil samples have been analyzed from Survey Unit

9.

4.3.10 Survey Unit #10 (A2400 31OCx)

Survey Unit #10 encompasses the open land on the extreme northern portion of the fenced site. The foundation of the Reactor Air Compressor Building and the Reactor Cryogenic Farm and Building reside in this survey unit. Several paved surfaces traverse the area mostly around the two structures. Several small trees are located within the unit as well as typical native grasses.

As a result of the scan, no area of elevated gamma radiation was identified. The maximum contact and 1-meter gamma measurements were 27.75 and 29.01 /uR/hr respectively. Thirty-six (36) surface soil sampling locations were identified throughout the survey unit. Sample analysis results are provided in Attachment A, Table A-2.

To date, no subsurface soil samples have been analyzed from Survey Unit

10.

4.3.11 Emergency Retention Basin (A2100 l0lCx)

The Emergency Retention Basin (ERB) is a component of the Water Effluent Monitoring System (WEMS). A series of in-stream monitors in the WEMS would reposition the sluice gates in the discharge canal to divert the flow to the ERB when radioactivity levels in the effluent path exceeded a preset limit. The effluent liquid was held in the ERB until it met effluent discharge level requirements. The area of the ERB is approximately 51,487 ft2. The survey unit is flat, generally deforested and populated with native field grasses. The survey unit is surrounded on all sides by an earthen berm that is approximately fifteen (15) feet in height.

Twenty-four (24) elevated areas were identified during gamma scan for follow-up surveys and sampling. The maximum contact gamma measurement was 60.05 /LRIhr. The maximum one-meter gamma measurement was 39.35 tR/hr. Additionally, twenty-four (24) surface soil samples were collected. Sample analysis results are provided in Attachment A, Table A-2.

To date, forty-nine (49) subsurface soil samples have been analyzed within the ERB. Sample analysis results are provided in Attachment A, Table A-2.

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Supplemental Characterization Report 4.4 Environs Outside the PBRF Fence 4.4.1 Areas Immediately Adjacent to PBRF Fence This area encompasses land surface area that immediately surrounds the Plum Brook Reactor Facility (PBRF) perimeter fence boundary to an outermost distance of up to 50 feet. The area immediately surrounding the PBRF fence boundary was not previously classified.

The area was scanned for gamma radiation to identify additional survey and sampling locations. Surveys required under this package included gamma scans and static measurements, and gamma spectroscopic analysis of surface and subsurface soil samples.

Gamma scans were conducted over 100% of the open land areas around the perimeter of the PBRF fence line. Thirty-seven (37) sample locations were identified. Contact and 1-meter gamma dose rates were conducted at each location. The maximum contact dose rate was 15.77,IR/hr east of the WEMS sump. The maximum 1-meter gamma exposure rate was 14.78 jAR/hr at the northern end of the PBRF site. This 1 -meter exposure rate was due to elevated background radiation from a High Integrity Container (HIC) stored nearby.

Thirty-nine (39) surface soil samples were collected, including 2 Quality Assurance/Quality Control samples (QA/QC). Sample analysis results are provided in Attachment A, Table A-2. Eleven (11) surface soil sample locations displayed significant activity levels. All of the elevated surface soil sample locations were identified in an area east of the WEMS sump.

To date, no subsurface soil samples have been analyzed from within this survey unit.

The results of the characterization indicate that the initial classification of a majority of the area adjacent to the PBRF fence as a Class 3 area is correct. A Class 1 area (approximately 250 ft2) outside the PBRF fence immediately adjacent to the WEMS sump has been identified. However, further analysis of subsurface soil samples is necessary to accurately characterize this area.

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Supplemental Characterization Report 4.4.2 Pentolite Ditch (A2300 101Cx)

The Pentolite Ditch received all water from the Water Effluent Monitoring Station and was the primary effluent release pathway for the Plum Brook Reactor Facility. Pentolite Ditch drains from west to east with the termination of the ditch at the interface with Plum Brook. An unnamed stream enters Pentolite Ditch approximately 1,450 feet east of the WEMS Canal Outfall.

This survey area initially encompassed a 33 foot grid imposed over the approximate 3,500 ft length of the Pentolite Ditch (including small parts of Plum Brook and the unnamed stream). The total surface area of this survey unit is 115,500 ft2.

During the performance of gamma scan surveys conducted within the immediate Pentolite Ditch area, elevated activity was discovered. As part of the effort to bound elevated activity areas, surveys were performed north and south of original survey area identified along Pentolite Ditch.

Elevated activity areas were bounded and surface soil samples were collected. During the FSS/Characterization weekly meeting, held on 09/02/04, it was determined that the elevated activity that was identified predominantly on the flat areas south of the Pentolite Ditch may have derived from past dredging operations of the ditch. This determination resulted from information provided by former site employees who had been involved in the dredging operations.

The expanded survey area boundary currently encompasses the Pentolite Ditch and the bounded areas (approximately 15,000 ft2) north and south of the ditch. The total surface area of this survey unit is approximately 130,500 ft2.

Gamma scans were conducted over 100% of the accessible areas of the ditch bank and bounded land areas around the ditch to determine elevated locations for follow-up surveys and sampling. Contact and 1-meter gamma dose rates were conducted at each location. The maximum contact dose rate was 200.5 AR/hr south of the ditch. The maximum 1-meter gamma exposure rate was 70.3,uR/hr, also south of the ditch.

Fifty-eight (58) surface soil samples were collected and the results indicated that thirty-nine (39) samples contained significant activity. The sample containing the highest activity was collected south of the Pentolite Ditch. Sample analysis results are provided in Attachment A, Table A-2.

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Supplemental Characterization Report Sixty-four (64) sediment samples were collected throughout the length of Pentolite ditch and the results indicated that twenty-five (25) samples contained significant activity with the maximum activity being south of the WEMS outfall. Sample analysis results are provided in Attachment A, Table A-2.

Collection of subsurface soil samples is ongoing. Subsurface sediment samples will be collected during the remediation phase of Pentolite ditch.

The results of the characterization indicate that the initial classification of Pentolite Ditch as Class 1 is correct. Additionally, based on surveys and sampling of areas adjacent to the ditch and historical evidence, parts of those areas were incorrectly classified as non-impacted, but have been reclassified as impacted, Class 1 in accordance with MARSSIM guidance.

Characterization activities remain ongoing in this area to ensure that the lateral and vertical extent of impact is properly bounded.

4.5 Previously Unclassified Areas All or parts of the following PBRF areas were not previously classified for Final Status Survey. The current classifications of these areas, provided in tables A-1 and A-2, were assigned based either on the results of characterization surveys or on known history and radiological status of the area. Detailed reports of available characterization data for these areas are included in Attachment B, Survey Data Management System Reports.

Reactor Building Roof & Exterior Walls - Class 2 & 3 respectively

Hot Laboratory Building Hot Cells - Class 1

Hot Laboratory Building Lavatory Areas - Class 1

Hot Laboratory Building Hot Work Area - Class 1

Hot Laboratory Building Hot Handling Area - Class 1

Hot Laboratory Building Hot Dry Storage - Class 1

Hot Laboratory Building Room 19, Removable Slabs, & Area Above HDS -

Class 1

Hot Laboratory Building Roof & Exterior Walls - Class 2 & Class 3 respectively

Reactor Services Equipment Building Roof & Exterior Walls - Class 2 &

Class 3 respectively

Reactor Fan House Building Roof & Exterior Walls - Class 2

Waste Handling Building Operating Areas - Class 1

Waste Handling Building Roof & Exterior Walls - Class 2

Reactor Primary Pump House Building Roof & Exterior Walls - Class 1 Plum Brook Reactor Decommissioning Project 4-14 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project 4-14 Revision 0 December 16, 2004

Supplemental Characterization Report

Reactor Office & Laboratory Building Utility Tunnel - Class 1

Reactor Office & Laboratory Building Roof & Exterior Walls - Class 2 &

Class 3 respectively

Open Land Areas Outside the PBRF Fence - Class 1/3 4.6 Downgraded Classifications As a result of characterization surveys, all or parts of the following PBRF areas were downgraded from the initial classifications presented in Table 4-2 of the PBRF Decommissioning Plan. Detailed reports of characterization data for these areas are included in Attachment B, Survey Data Management System Reports.

Reactor Building Shop Area (Area 4) - Class 2 to Class 3

Reactor Building Count Rooms - Class 2 to Class 3

Reactor Office & Laboratory Building Crawl Space (Area 7) - Class 2 to Class 3

Reactor Office & Laboratory Building First Floor Offices - Class 2 to Class 3

Reactor Office & Laboratory Building Second Floor Offices - Class 2 to Class 3 4.7 Systems The only plant systems that are expected to be surveyed to FSS protocols are buried and embedded piping. Minimal characterization has been conducted on these systems and characterization is ongoing. However, radiological survey data collected during fixed equipment removal activities indicate that many of these systems contain contamination levels that exceed the interim site-specific DCGLs for structural surfaces.

4.8 Background

The PBRF project developed a procedure, PBRF-CS-0 16, intended to provide the basis for material background determination using the guidance and methods described in NUREG-1575, MARSSIM. This procedure details the methods used to determine the natural background radioactivity associated with materials that will be surveyed to demonstrate compliance with the established release criteria.

Background measurements were made on several types of construction material from PBS facilities that were reasonably believed to not have been impacted by operations at the PBRF. Soil samples from remote, onsite locations were also taken and analyzed to be used as background data for soils.

Figure 4-2, below, illustrates the location of the PBRF in relation to the areas of the Plum Brook Station site where background studies were conducted.

Plum Brook Reactor Decommissioning Project 4-is Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project 4-15 Revision 0 December 16, 2004

Supplemental Characterization Report Figure 4-2, Plum Brook Station BOGARK ROAD

/

TA 3394 Mzv

/

13--91197 35 2KE1TO RAOATYD OA I"

ROAD 843 5 SCHE9298ID R5 ROA0

~89Toi-9203 103 261 7

2 311

's~

PLUM BR4OO42K128S114TION' Plum Brook Reactor Decommissioning Project 4-16 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project 4-16 Revision 0 December 16, 2004

Supplemental Characterization Report 4.8.1 Material Background The natural levels of radioactivity in plant construction materials affects direct measurements for total activity. To quantify this effect, a background study was performed at the Space Power Facility and the Engineering Building (Building 7141) on the PBS. The study included direct measurements for total beta activity on painted, unpainted and epoxy-coated concrete, concrete block, ceramic tile, porcelain fixtures, brick, asphalt, and other miscellaneous materials. Other materials encountered during the characterization survey such as glass, carpeting, and steel were not included in the background study since their natural radioactivity is not expected to contribute significantly to direct measurements for total beta activity. Survey personnel used the same instruments for the structural background survey as were used for the characterization survey and are anticipated for use during final status survey. Survey techniques complied with approved procedures and supporting documentation. Project personnel did not use these results to correct data gathered from similar surfaces during the characterization survey. However, it is anticipated that background results will be subtracted from similar surfaces during the final status survey.

4.8.2 Environs Background The purpose of the environmental background study was to measure and document the direct gamma radiation levels present in the environment from surface soil, rock and sediment. Survey personnel used the same instruments for the environmental background survey as were used for the characterization survey and are anticipated for use during final status survey. Survey sampling and measurement techniques complied with approved procedures and supporting documentation. Each soil and sediment sample was analyzed in the on-site laboratory by gamma spectroscopy. Duplicate samples were sent to a USACE validated off-site laboratory for a confirmatory gamma spectral analysis. Survey measurement and sample locations were from an undisturbed open land area and road cut ditch on the PBS along Fox Road in close proximity to the North Columbus Avenue intersection. Figure 4-2, above, illustrates the location of the PBRF in relation to the areas of the Plum Brook Station site where background studies were conducted.

4.8.3 Background Results The analysis of data collected during the background reference area study is currently on-going and will be frlly reported in a future revision to this report.

Plum Brook Reactor Decommissioning Project 4-17 Revision 0 December 16, 2004 Plum Brookc Reactor Decommissioning Project 4-17 Revision 0 December 16, 2004

Attachment A Characterization Survey Data Summaries

(:

Supplemental Characterization Report Table A Impacted Structures Characterization Data Summary Estimated Floor Floor Total FSS Initial Slgmad Mean Net Maximum Net Facility or Survey Area Area Area Surface biaiga 2

Total Beta Total Beta (ft2)3 (oSv)

Area Classification Classification0 (dpm/100cm)

(dpm/100cm 2)

(dpm/100cm2)

Reactor Building (Building 1111):

Inside Containment Vessel

Area 2 - Work Space Inside CV @ 0' 4,019 374 2,244 Class 1 Class 1 Char Pending Char Pending Char Pending (Cl l16Cx)

Area 17 - Test Area Inside CV at -25' 1,350 126 756 Class 1 Class 1 Post Decon Post Decon Post Decon

Area 18 - Canal E (C1110 111Cx) 1,281 120 720 Class 1 Class 1 Post Decon Post Decon Post Decon

Area 23 - Quad A (C 1110 107Cx) 803 75 450 Class 1 Class 1 Post Decon Post Decon Post Decon

Area 24 - Quad B (C1110 108Cx) 813 76 456 Class 1 Class 1 Post Decon Post Decon Post Decon

Area 25 - Quad C (C1110 109Cx) 803 75 450 Class 1 Class 1 Post Decon Post Decon Post Decon

Area 26 - Quad D (Cl 110 1 10Cx) 637 60 360 Class I Class 1 Post Decon Post Decon Post Decon

Area 29 - Sub-Pile Room (C1110 101Cx) 157 15 90 Class 1 Class 1 Post Decon 38,108 78,775

Area 30- Elevator Pit and Stair Well 210 20 120 Class I Class I Char Pending Char Pending Char Pending 10,073 941 5, 646_______

Reactor Building (Building 1111):

)_

= _____::::

Outside Containment Vessel CArea 1-General Floor Area C

grade 9,4491 878 5,268 Class 1/2 Class 2 Char Pending l

Char Pending Char Pending (C l I ii 207C x)j

Area 3 - Canals Canal F (ClIII 104Cx) 382 36 216 Class I Class I Post Decon Post Decon Post Decon o Canal G (C111I 105Cx) 5801 541 324 Class 1 Class 1 Post Decon l

687,144 6,107,314

- Canal H (Cl I1 103Cx) 455 43 T 258 Class 1 Class 1 Post Decon l

13,212 T

54,926

Area 4 - Shop Area (C III 203Cx) o Rooms 102 &103, Exp Ctrl Annex 806 75 450 l Class 3e Class2 2 1

Room 104, Office 4001 38 228 Class 3e Class 2 J

220 144 551 oRoom105 Office 4411 411 246 Class3e l

Class2 2 1

Count Rooms (C111 204Cx)

_ I i_:_:

o Room 5, Experiment Control Room 1,156 j 108 J 648 Class 3 e Class 2 o Room 6, Counting 801 8

48 Class 3e Class 2 I

o Room 7, Janitor Closet 124 12 72 Class 3 e Class 2 608 335 1952 o Room 8, Restroom 498 47 282 Class 30 Class 2 Room 9, Locker 197 19 114 Class 3 e Class 2 o Room 10, Personnel Decontamination D 120 12 72 Class 3' Class 2

-Area 11-OfficeAreaMezzanine (Cl1I 208Cx)

- Room 15, Reactor Control Room 872 82 492 Class 2 Class 2 6,254 2,957 17,749 o Room 16, Restroorn, +12 Elevation 80 8

48 Class 2 Class 2 o Room 28, Storage 87 9

54 Class 2 Class 2 o Rooms 202/203, Elec Equip & Parts Storage 806 75 450 Class 2 Class 2 a Room 204, Office 400 38 228 Class 2 Class 2

- Room 205,Office 441 41 246 Class 2 Class 2 Plum Brook Reactor Decommissioning Project A-i Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project A-l Revision 0 December 16, 2004

(

Supplemental Characterization Report Table A Impacted Structures Characterization Data Summary Estimated Floor Floor Total FSS Initial Sigmad Mean Net Maximum Net Faiiyor SuvyArea Area Area Surface OC2)

Total Beta Total Beta Facility y

(ft2)a (mi

2)

Area Classificationb Classificationc (dpml c

(dpm/IOOcm 2)

(dpmIO00cm 2) o Room 206, Office 171 16 96 Class 2 Class 2 o Room 207, Office 171 16 96 Class 2 Class 2 o Room 208, Office 171 16 96 Class 2 Class 2 o Room 209, Office 171 16 96 Class 2 Class 2 o Pipe Chase 46 5

30 Class 2 Class 2

Area 20 - Work Area @ -15' (ClII1 202Cx)n 7,790 724 4,344 Class 1 Class 2 Char Pending Char Pending Char Pending

Reactor Bldg Sub-basement (Cl I I I 20ICx)

N:._-____::

o Area 21 - Work Area @ -25' 3,013 280 1,680 J Class I Class 2 7,720 6,280 25,058 o Area 22 - Pump Room Area + Roof 1,366 127 762 Class 1/2 Class 2

Penthouse Areas (Cl11 209Cx) o Room 31, East Penthouse N/A N/A N/A N/A' 1

Class 2 N/A N/A N/A o Room 32, West Penthouse N/A N/A N/A N/AI Class 2

Area 33 - Air Lock I & 2 (C1111 206Cx) 121 12 72 Class I Class I Char Pending Char Pending Char Pending

30,840 2,878 17,268 -

Building Exterior (C ii11 30ICx)

Building Roof 28,084 2,609 2,609 Class 2 e N/A 1,1 6

5 1 Building Exterior Walls 13,110 1 218 1,218 Class 3 N/A N

82,107 7,646 26,741 Hot Laboratory (Building 1112):

Hot Cells (C1112 107Cx)

'Room 1, Hot Cell #1 342 32 192 Class 1 N/A

'Room 2, Hot Cell #2 138 13 78 Class 1 N/A oRoom 3, HotCell #3 96 9

54 Class 1 e N/A

'Room 4, Hot Cell #4 64 6

36 Class 1e N/A Post Decon 1,547,828 11,664,262

'Room 5, Hot Cell #5 64 6

36 Class e

N/A oRoom 6, Hot Cell #6 64 6

36 Class eI N/A

'Room 7, Hot Cell #7 64 6

36 Class 1 e N/A Mezzanine above Hot Cells 1-2 1,000 93 558 Class I Class 1/2 Post Decon 151,979 597,660 (C l1 12 109C x)_

C Mezzanine above Hot Cells 3-7 1,005 94 564 Class 1 Class 1/2 Post Decon 989,411 4,462,502 Cold Work Areas (C1112 203Cx_

oRoom 8, Cold Work Area + Air Lock 2,219 207 1,242 Class1 Class2

'Room8A,Vestibule 44 5

30 Class2 Class2 P

D 1

oRoom 9, Manipulator Repair Shop 409 38 228 l Class 1 Class2 2 PostDecon 11,398 288,801

'Room10,Office 117 1 1 66 Class2 Class2 2

Lavatory Areas (C 112 205Cx)

- Room 11, Locker Area 217 21 126 Class 1 '

N/A Post Decon 1 1,834 78,234

' Room 12, Cold Lavatory 1

1421 14 84 Class 1 e N/A

- Area 13 - Pipe Space 61 6

36 1 Class 1 I

N/A

- Room 14, Change Room 183 181 1081 Class 1 e N/A Plum Brook Reactor Decommissioning Project A-2 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project A-2 Revision 0 December 16, 2004

(

(-

Supplemental Characterization Report Table A Impacted Structures Characterization Data Summary Estimated Floor Floor Total F S Initial Sigmad Mean Net Maximum Net Facility or Survey Area Area Area Surface SSItalg 2

Total Beta Total Beta (ft2)

(im2)

Area Classificationb Classificatione (dpm/100cm2)

(dpm/1OOcm 2)

(dpm/100cm 2)

(m2)

Room 15, Hot Lavatory 279 26 156 Class e N/A

Room 15A, Closet 24 3

18 Class I e N/A

Room 16, Hot Work Area (C1112 202Cx) 2,155 201 1,206 Class 1 e N/A Post Decon 628,257 1,667,274

Hot Handling Area (C1112 106Cx) o Room 17, Hot Handling Room 692 65 l 390 Class 1 Class 1/2 Post Decon l

Post Decon l

Post Decon

" Area 26 - Valve Pit 1841 18 1 1081 Class 18 N/A I

__I_

I__

"Area 18-Canal J (Cl1 12 105Cx) 435 41 246 Class 1 Class 1 Post Decon Post Decon PostDecon

Hot Dry Storage (C1112103Cx)

" Room 19, Hot Dry Storage 900 84 504 Class I e N/A o Room 19A, Off-Gas Clean-up 174 17 102 Class 1 e N/A Post Decon Post Decon Post Decon Room 19. Removable Slabs & area above 74 444 Class 1 N/A Post Decon Post Decon Post Decon

Area 20 - Canal K (Cl 112 104Cx) 799 75 450 Class I Class I Post Decon Post Decon Post Decon

Decontamination Areas (Cl 112 204Cx)

_________i'

___i.

Room 21, Storage + Roof 2461 23J 138 Class I Class 1/2 Room 22, Repair Shop 646 61 366 Class 1 Class 1/2 j

3 "Room 23, Decontamination Room 387 36 216 Class 1° Class 1/2 Post Decon 396,111 1,602,360

" Room 24, Storage 5911 551 330 Class 1 Class 1/2 I

I

Hot Pipe Tunnel (C1112 108Cx)

"Area 25A - Hot Pipe Tunnel 1,413 132 792 Class 1 _

Class I "Area 25B - Hot Pipe Tunnel 1,474 137 822 Class I Class 1 Post Decon Post Decon Post Decon "Area 25C-HotPipeTunnel 1,112 104 624 Class 1 Class1 "Room 27, Mezzanine (C1112 112Cx) 1,412 132 792 Class I Class 1/2 Char Pending Char Pending Char Pending "BuildingExterior (C1112 301 Cx)

"Building Roof 14,134 l 1,313 1,313 [

Class2e N/A 360 917 "Building Exterior 14,047 r 1,305 T 1,305 l Class 3e N/A 265 48,126 J 4,487 T 13,832 1 Plum Brook Reactor Decommissioning Project A-3 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project A-3 Revision 0 December 16, 2004

(

Supplemental Characterization ~Report Table A Impacted Structures Characterization Data Summary Estimated Floor Floor Total FSS Initial Sigmad Mean Net Maximum Net Faiiyor SuvyArea Area Area jSurface ba2 Total Beta Total Beta Reactor Service Equipment Building (1131)

SEB First Floor Areas (D1131 403Cx) o Area I - Shop & Equipment 2,218 207 1,242 Class 1/3 Non-Impacted o Room 1, Chem. Lab & Record 394 37 222 Class 2/3 Non-Impacted o Room 2, Counting 143 14 84 Class 2/3 Non-Impacted o Room 3, Office 173 17 102 Class 2/3 Non-Impacted o Room 4, Corridor 104 10 60 Class 2/3 Non-Impacted o Room 5, Office 87 9

54 Class 2/3 Non-Impacted o Room 6, Locker 162 16 96 Class 2/3 Non-Impacted Room 7, Janitors Closet 28 3

18 Class 2/3 Non-Impacted o Room 8, Restroom Vestibule 16 2

12 Class 2/3 Non-Impacted 321 545 1,134 o Room 9, Vestibule 52 5

30 Class 2/3 Non-Impacted o Room 10, Corridor 195 19 114 Class 2/3 Non-Impacted o Room 11, Control Room 1,083 101 606 Class 2/3 Non-Impacted Room 12, Chlorine 105 10 60 Class 2/3 Non-Impacted o Room 13, Water Treatment 3,752 349 2,094 Class 2/3 Non-Impacted o Room 15, Boiler 1,667 155 930 Class 2/3 Non-Impacted o Room 16, Parts and Storage 290 27 162 Class 2/3 Non-Impacted o Room 17, Vertical Lift 149 14 84 Class 2/3 Non-Impacted o Room 18, Engine Room 5,372 500 3,000 Class 2/3 Non-Impacted

SEB Mezzanine Areas (D1131 404Cx)

Room 1A, Instrument Repair 221 21 126 Class 3 Non-Impacted Room 2A, Instrument Repair 270 26 156 Class 3 Non-Impacted o Room 3A, Instrument Repair 320 30 180 Class 3 Non-Impacted 1,819 1,564 4,859 o Area 14 - Mezzanine 358 34 204 Class 2/3 Non-Impacted o Room 19, Chemical Storage 1,526 142 852 Class 2/3 Non-Impacted Room 19A, Chemical Storage 393 37 222 Class 1/3 Non-Impacted Post Decon 12,791 91,375

Cold Pipe Tunnel (D 1131 406Cx) o Area 23 - CPT (under SEB) 1,890 176 1,056 Class 1 Class 3 oArea 23 - CPT (from 1131 to 1152) 1,098 103 618 Class I Class 3 Area 23 - CPT (under 1152) 570 53 318 Class 1 Class 3 Post Decon 21,824 92,897 oArea 23 - CPT (from 1151 to 1152) 366 35 210 Class I Class 3 I

oArea 23 - CPT (under 1151) 111 11 66 Class 1 Class 3 oArea 23 - CPT (from 1111 to 1131) 2,347 219 1,314 Class 1 Class 3

SEB Basement Areas (D0 131 402Cx) o Room 20, Auxiliary Equipment 1,020 l 95 570 Class 3 Non-Impacted Room 21, Water Treatment Pump 1,543 144 864 Class 3 Non-Impacted Area 22 - Clear Well 423 1 40 240 Class 3 Non-Impacted oArea 24-Generator/Compressor Pit 460 43 258 Class 3 Non-Impacted 319 501 1,021 o Room 25, Electrical & Batteries 914 l 85 510 Class 2/3 Non-Impacted Area 26-Pit 88 9

54 Class 3 Non-Impacted o Closet, Basement 40 1 4

24 Class 3 Non-Impacted l

Plum Brook Reactor Decommissioning Project A4-4 Revision 0 December 16, 2004

)

(

Supplemental Characterization Report Table A Impacted Structures Characterization Data Summary Estimated Facility or Survey Area Area lArea Surf ace b

(dpm/100cm 2 Total Beta Total Beta (ift )

M ra lsifcto Classificationc Oc (dpm/1O0CM2)

(dprn1lOOCM2)

Building Exterior (DW131 405Cx) 3 C

Building Roof 16,985 1.578 1,578 Class2e N/A 199 4

699 Building Exterior Walls 4,2 831 383 Class 3' e A

51,056 4,763 18,773 Fan House Building (1132):

i

First Floor Operating Area (C1132 201Cx)

Room 1, Operating Area 2,772 258 1,548 Class I Class 1/2 o Room 2, Restroom 94 9

54 Class 1 Class 1/2 o Room 3, Janitor's Closet 55 6

36 Class 1 Class 1/2 Char Pending Char Pending Char Pending o Room 4, Deionizer 155 15 90 Class 1 Class 1/2 Room 5, Office 64 6

36 Class 1 Class 1/2

Basement Areas (C1132 102Cx)

___i-__--

oRoom 6, Air Monitor 174 17 102 Class 1 Class I oRoom 7, Sump Room 217 21 126 Class 1 Class I o Room 8, Equipment Room 2,906 270 1,620 Class I Class 1 o Area 9, Tunnel to Rx Bldg 1111 420 40 240 Class 1 Class 1 Post Decon Post Decon Post Decon o Area 10, Stairwell 96 9

54 Class I Class i o Resin Pit 136 13 78 Class 1 Class 1 o Pipe Trench 1831 18 108 Class 1 Class 1

Building Exterior (C1132 301Cx)

"Building Roof 3,897 1 362 362 1 Class 2e N/A 186 99 580 "Building Exterior Walls 4445 1 413 413 1 Class2e J

N/A 15,614 1 1,457 [

4,867 Waste Handling Building (1133):

Operating Areas (C1133 104Cx)

"Room 1, Operating Area 1,951 l 182 l 1,092 Class 1 C Class 1/2 "Room 2, Decontamination 414l 39 l 234 Class 1 C lass1/2 Post Deoon Post Decon Post Decon "Area 16 - Stair Housing 97 1 101 60 Class 1 e N/A

Laundry Area (C1133 201Cx)

"Room 3, Laundry 222 21 126 Class I Class 1/2 "Room 4, Clean Clothing 171 16 96 Class 1 Class 1/2

- Room 5, Storage 85 8

48 Class I Class 1/2

" Room 6, Laboratory 155 15 90 Class 1 Class 1/2 "Room 7, Office 150 14 84 Class I Class 1/2

" Room 8, Corridor 121 12 72 Class I Class 1/2 Char Pending Char Pending Char Pending

" Room 9, Janitor's Closet 19 2

12 Class 1 Class 1/2

" Room 10, Closet 15 1 2

12 Class I Class 1/2 "Room 11, Contaminated Change 122 12 72 Class I Class 1/2

" Room 12, Clean Restroom 120 12 72 Class 1 Class 1/2

" Room 13, Corridor 127 12 72 Class 1 Class 1/2

" Pipe Chase 21 2

12 Class I Class 1/2

Room 14, Boiler Room (1133 202Cx) 411 39 234 l Class 1 Class 1/2 Char Pending Char Pending I

Char Pending Plum Brook Reactor Decommissioning Project A-5 Revision 0 December 16, 2004

(

Supplemental Characterization Report Table A Impacted Structures Characterization Data Summary Estimated Floor Floor Total FSS Initial Slgmad Mean Net Maximum Net Facility or Survey Area Area Area Surface bgm 2

Total Beta Total Beta (ft2)a (Mi2)

Area Classificationb Classificationc (dpmllO0cm)

(dpm/lOOcm2)

(dpm/100cm2)

Basement Work Areas (C1133 102Cx) oRoom 15, Access & Work Area 1,563 J 146 876 ]

Class 1 Class 1 Post Decon Post Decon Post Decon o Room 19, Access Tunnel 347 1 33 1981 Class 1 Class 1

Evaporator Work Areas (C1133 103Cx) o Room 17, Preparation 406 38 228 Class I Class 1 Post Decon Post Decon Post Decon

Room 18, Evaporator 406 38 228 Class 1 ClassI I

I

Mezzanine (C1133 105Cx) 1,350 126 756 Class 1 e N/A Char Pending Char Pending Char Pending

Building Exterior (C1133 301Cx)

__;________i Building Roof 4,726 1 4391 439 1 Class2e N/A oBuilding Exterior Walls 3,821 l 355 355 l Class 2 N/A 164 14,869 1 1,391 1 4,376 1 Primary Pump House (1134)

^,.-

Interior Rooms (C0134 201Cx)

k__'_:.___-_-;

oRoom 1, Pump 171 16 96 Class 1 Class 2 Room 2, Pump 171 16 96 Class 1 Class 2 J

o Room 3, Pump 171 16 96 Class I Class 2 Post Decon 1,052,432 5,288,932 o Room 4, Heat Exchanger 1,073 100 600 Class 1 Class 2 1,046,611 4,986,792 o Room 5 149 14 84 Class 1 Class 2 o Room 6, Bypass Deionizer 257 24 144 Class 1 Class 2

Exterior Rooms (C1134 202Cx)

Room 7 636 1 60 360 Class 1 Class2 oRoom8 990 92 552 Class1 Class2 l

Post Decon 6,998 275,028 o Mezzanine 544 51 306 Class I Class2 2

Resin Pit (01134 203Cx) 136 1 3 78 Class 1 Class 2 Post Decon Post Decon Post Decon

Building Exterior (C1134 301Cx) oBuilding Roof' 5,220 485 485 1 Class 1 e N/A 1,010 846 3,311 oBuildingExteriorWalls 4,316 l 406 406 I Class1 N/A I

1 8

13,834 l 1,293 l 3,303 Plum~~~

Bro Reco Deomsinn Prjc A_

Reiin0Dcebr1,20 Plum Brook Reactor Decommissioning Project A-6 Revision 0 December 16, 2004

(

Supplemental Characterization Report Table A Impacted Structures Characterization Data Summary Estimated Floor Floor Total FSS Initial Sigmad Mean Net Maximum Net Facility or Survey Area Area Area Surface Classification2b Classificationc (dpm/100cm2)

Total Beta Total Beta Reactor Office and Laboratory Building (1141)

______I

Area 1, Northeast Stair Hall (C1 141 203Cx) 291 l 28 r 168 T Class 2 r

Class 2 T

631 J

818 1,575

Elevator Areas (Cl 141 202Cx)

Area 2, Elevator &Shaft 60 i

6 36 Class 2 Class2 oArea 3, ElevatorSMachinery 143 14 84 Class2 Class2 j

380 941

Vault Areas (Cl 141 206Cx) o Area 4, Cold Test Area 2,491 232 1,392 Class I Class 2

Area 5, Airway 700 66 396 Class 1 Class 2

Area 8, Vestibule 99 10 60 Class I Class 2

Area 9, Restroom 82 8

48 Class 1 Class 2 o Area 10, Janitor's Closet 38 4

24 Class 1 Class 2 8,234 3,204 38,865

Area 11, Building Service Equipment 1,767 165 990 Class 2 Class 2 400 586 2,155 o Area 14, Tool Crib 265 25 150 Class 2 Class 2

Area 15, General Shop Area 813 76 456 Class 2 Class 2

Area 16, Telephone Exchange 303 29 174 Class 2 Class 2

Area 17, Vault 188 18 108 Class I Class 2

Area 6, Sump (C1141 208Cx) 530 50 300 Class 1 Class 2 321 209 781

Area 7, Crawl Space (Cl 141 21OCx) 3,782 352 2,112 Class 3 e Class 2 121 450 608

Instrument Areas (Cl 141 207Cx) i

° Area 12, Counting Rooms 357 34 204 Class 2 Class 2 l

Area 13, Electronic Shop 317 30 180 Class 2 Class 2 880 715 2,589 o Area 13A, Calibration Room 177 17 102 Class 2 Class 2

Utlity Tunnel (Cl 141 209Cx) 2,064 192 192 Class I e N/A Post Decon Post Decon Post Decon

First FloorOffices (C1141 211Cx) r

- Lobby 505 47 282 Class 3' Class 2 565 263 1,664

_Room10,Office 214 20 120 ClaSS3_

Class 2 o Room 100, Office 214 20 120 Class 3e Class 2 o Room 102, Office 214 20 120 Class 3 l

Class 2 o Room 103, Office 209 20 120 Class 3e Class 2 o Room 104, Office 176 17 102 Class 3e Class 2

- Room 105, Office 191 18 108 Class 3e l

Class 2

- Room 106, Office 176 17 102 Class 3e Class 2 o Room 107, Office 214 20 120 Class 3e Class 2

- Room 108, Office 197 19 114 Class 3e Class 2 o Room 109/110/111, Classroom 653 61 366 Class 2/3e t

Class 2 o Room 121, Conference 484 45 270 Class 2/3 l

Class 2

- Room 122, Office 300 28 168 Class 2/3e Class 2

- Room 123, Office 197 19 114 Class 2/3' l

Class 2 oRoom124,Office 200 19 114 Class2/3 l

Class2 Plum Brook Reactor Decommissioning Project A-7 Revision 0 December 16, 2004

(

Supplemental Characterization Report Table A Impacted Structures Characterization Data Summary Estimated Floor Floor Total FSS I

Si d

Mean Net Maximum Net Facility or Survey Area Area Area Surface b

M2)

Total Beta Total Beta (fe)a (in

2)

Area Classification Classificationc (dpmllOOcm)

(dpm-IOOCM 2)

(dpm/100cm2)

(M2)

Room 125, Office 200 19 114 Class 2/3e Class 2

Room 126, Office 212 20 120 Class 2/3e Class 2 o Restroom, Men's, +0 Elevation 177 17 102 Class 2 Class 2

Restroom, Women's +0 Elevation 158 15 2

Class 2 Class 2 o Lavatory, +0 Elevation 32 3

18 Class 2 Class 2

Janitor's Closet, +0 Elevation 30 3

18 Class 2 Class 2 o Pipe Chase, +0 Elevation 39 4

24 Class 2 Class 2 o Hallways, +0 Elevation North/South 307 29 174 Class 3' Class 2

First Floor Work Areas (Cl 141 212Cx) o Room 112, First Aid 303 29 174 Class 2 Class 2 o Room 113, Office 100 10 60 Class 2 Class 2

" Room 114, Health & Safety Operations 406 38 228 Class 2 Class 2

Room 115, Office 341 32 192 Class 2 Class 2 o Room 116, Receiving 209 20 120 Class 2 Class 2 1,028 528 3,026

" Room 1171118, Electronic Laboratory 768 72 432 Class 1/2 Class 2

Room 119/120, Electronic Laboratory 642 60 360 Class 1/2 Class 2

" Hallways, +0 Elevation East/West 1,725 161 966 Class 2 Class 2

Middle Stairwell (C1 141 204 Cx) 196 19 114 Class 2 Class 2 436 497 1,527

Southeast Stairwell (C1141 205Cx) 196 19 114 Class 2 Class 2 2,080 1,490 6,438 "Second Floor Offices (C1141 213Cx)

" Room 200, Office 202 19 114 Class 3e Class 2

" Room 201, Office 214 20 120 Class 3 e Class 2

" Room 202, Office 214 20 120 Class 3e Class 2

" Room 203, Office 214 20 120 Class 3e Class 2

Room 216, Office 214 20 120 Class 3e Class 2 "Room 217, Library 480 45 270 Class 3 e Class 2

Room 218, Office 214 20 120 Class 3e Class 2

Room 219, Offce 214 20 120 Class 3e Class 2

" Room 220, Office 214 20 120 Class 3e Class 2 742 305 3,564

Room 221, Office 214 20 120 Class 3 e Class 2

" Room 222, Office 523 49 294 Class 3 e Class 2

Room 223, Office 214 20 120 Class 3e Class 2

" Restroom, Men's, +12 Elevation 134 13 78 Class 2 Class 2

" Restroom, Women's +12 Elevation 45 5

30 Class 2 Class 2

" Janitors Closet 1, +12 Elevation 28 3

18 Class 3e Class 2

" Hallways, +12 Elevation North/South 727 68 408 Class 3e Class 2 Plum Brook Reactor Decommissioning Project A-8 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project A-8 Revision 0 December 16, 2004

(

(C Supplemental Characterization Report Table A Impacted Structures Characterization Data Summary Estimated Floor Floor Total FS$

Initial Sigmad Mean Net Maximum Net Facility Survey Area (ft~e)

(mi

2)

Area Classificationb Classification' (dpm/100cm)

(dpm/100cm2)

(dpmI/100cm 2)

(M2)

Second Floor Work Areas (C1141 214Cx) o Room 204, Materials Laboratory 345 33 198 Class 1 Class 2 o Room 205, Materials Laboratory 301 28 168 Class I Class 2 o Room 206, Materials Laboratory 345 33 198 Class 1 Class 2 o Room 207, Chem. Lab Storage 352 33 198 Class I Class 2 o Room 207A, Counting 160 15 90 Class 1 Class 2 Room 208, Office 164 16 96 Class 1 Class 2 o Room 208A, Darkroom 133 13 78 Class 1 Class 2 Room 208B, Darkroom 133 13 78 Class 1 Class 2 Room 209, Chem. Laboratory 312 29 174 Class 1 Class 2 65,994 39,099 293,254

Room 210, Chem. Laboratory 312 29 174 Class 1 Class 2

Room 2111212, Chem. Laboratory 695 65 390 Class 1 Class 2

Room 213, Chem. Laboratory 349 33 198 Class 1 Class 2

Room 213A, Chem. Laboratory 362 34 204 Class I Class 2 o Room 214/215, Chem. Laboratory 417 39 234 Class 1 Class 2 o Janitor's Closet 2, +12 Elevation 23 3

18 Class 1 Class 2

Pipe Chase, +12 Elevation 33 4

24 Class I Class 2 o Hallways, +12 Elevation East-West 855 80 480 Class 1 Class 2

Building Exterior (Cl 141 215Cx) o Building Roof 11,540 1,072 l 1,072 l

Class 2e N/A 650 J

783

Building Exterior Walls 18,675 1,735 1 1,735 l

Class 3' N/A III Hot Retention Area (1155)

'All Areas (C1155 102Cx) 4,050 377 2,262 Class 1 Class 1 J Char Pending l Char Pending Char Pending Reactor Security Building (1191) i All Areas (D1191 401 Cx)_

Room 100, Visitor Control 470 44 264 Class 3 Non-Impacted Room 101, Utility 28 3

18 Class 3 Non-Impacted 222 177 523 Room 102, Fumace 52 5

30 Class 3 Non-Impacted Lavatory 34 4

24 Class 3 Non-Impacted Building Exterior (C1191 402Cx) 1,701 158 158 Class 3 Non-Impacted 91

-12 138 2,285 214 494

'Area estimated from facility drawings.

bCharacterization Survey Units are not reflective of the anticipated FSS areas.

' Initial classifications taken from Table 4-2 of the Decommissioning Plan.

d Large Sigma values for areas specified in this table shall be recalculated using post remediation survey information.

e Supporting documentation for new area classifications and area classification downgrades is provided in Attachment B, Survey Data Management System Reports f Reactor Building Penthouse structures have been removed.

g The structure of the Hot Lab Decontamination Room has been removed. The floor area where the structure once stood will be classified and surveyed as indicated.

NOTE: The term "Post Decon", as used in the above table, indicates areas where characterization data could not be collected due to high levels of residual radioactivity remaining on structural surfaces.

Additional data will be collected in these areas after decontamination occurs.

Plum Brook Reactor Decommissioning Project A-9 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project A-9 Revision 0 December 16, 2004

I Supplemental Characterization Report Table A Environs Characterization Data Summary Survey ISurvey FSS I

initial

[D

,.d Sim"Mean t

maximum PBRF Survey Area Area

)

e(a Classifaation b Package ID Isotope d Sigma Measuremen Measurement Emergency Retention Basin

'co 0.6009 0.56406 2.1436 Cl 1 3 7 CS 9.7326 13.079 37.653 60Co 1.727 2.149 7.610

All Areas (A2100 101Cx) 60,000 5,575 Class 1 Class I C3 137Cs 18.690 37.72 81.940

'bCo 0.1143 0.1381 0.7049 C4 137cs 1.128 1.224 4.459 Effluent Pathways

Drainage Systems (Storm Sewers)

N/A N/A Class I Class I Cl 131CS Char Pending Char Pending Char Pending

Pentolite Ditch & Environs (A2300 574,000 53,327 Class 1/Non-

'co 1.737 1.120 16.65

'; lex) 5 0

32 Class.I im acted el_

137CS J

109.3 37.51 1,019 Environmental Areas-;

'co 0.01326 0.05172 0.08278 137Cs 0.10468 0.29297 0.48578 60O 0.16979 0.11662 0.87453

South Southwest Unit (A2400 301Cx) 125,000 11,613 Class 2/3 Class 3 C2 137cs 0.09363 0.21873 0.44134

'co 0.02906 0.06827 0.08004 C3 137Cs 0.07320 0.09891 0.2587

'Co 0.01164 0.04291 0.06650

South Southeast Comer (A2400 Cl 13 7Cs 0.07518 0.23082 0.36748 302Cx) 60Co 6.0365 1.8708 37.151 Note: Contains the WEMS Spill area, the 122,891 11,417 Class 1/2 Class 1/3 C2 137cs 3.0 1.37 27.90 south ERB berm and portions of the east and Cs_39.250 15.327 217.90 west ERB berm.

Cw'Co 0.03374 0.07008 0.1639 C3 1 3 7 Cs 0.7132 0.2687 5.293 Plum Brook Reactor Decommissioning Project A-JO Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project A-10 Revision 0 December 16, 2004

(

Supplemental Characterization.Report Table A Environs Characterization Data Summary PBRFSurveyArea Survey Survey FSS Initial ID Isoto d

Sigma; Mean Maximum PBFSre raArea Area c~siitob Package I Istpe Measurement Measurement

______Classification_____Classifi)a (in2 onc (pC,/g, (pCilg)

(polig)

C1 CO 0.00181 0.04259 0.04662 37Cs 48.003 19.657 150.58

"~co 0.09183 0.09689 0.22770

Southwest Unit (A2400 303Cx)

C2 137cs 95.371 110.51 207.50 Note: Contains portions of the WHB Spill 125,000 11,613 Class 1/2/3 Class 1/3 "wCo 0.03692 0.07894 0.1263 Area and the Waste Storage Pad.

C3 CS 0.73 0.0724 0.2 3705 26.73 0.08724 153.2 C"CO 0.02039 0.05180 0.09207 13 7 Cs 2.566 0.6389 22.52

'Co 0.00741 0.04558 0.06258 C1 137cs 0.08350 0.26198 0.42556

-Southeast Unit (A2400 304Cx)

'co 0.01652 0.07273 0.08990 Note: Contains the north ERB berm and 105,895 9,838 Class 1/2 Class 3 C2

'17CS 0.1658 0.2793 1.060 portions of the east and west ERB berm.

0.02478 0.0583 1.060 C3 CO 0.02478 0.05683 0.08088 03 137CS 0.4235 0.2109 2.606 G"Ca 0.02666 0.05054 0.10171

Northwest Unit (A2400 305Cx)

C1 37C 0.47620 0.05106 1.5037 Note: Contains the HRA, WHB, FH, portions 108,608 10,091 Class 1/2 Class 1/3 C"Co 0.47620 0.07325 1.5203 of the Hot Lab, and portions of the WHB spill

'o 00490035017 area.

02 3c

_ s 0.2784 0.3151 1.449

""CO 0.01475 0.04701 0.07637

Northeast Unit (A2400 306Cx)

C1 137cs 0.09803 0.23683 0.38934 Note: Contains the CRA's and ERB Spill 117,542 10,921 Class 1/2 Class 3 3 Co 0.06809 0.1199 0.329 Areas 2co 0.06809 0.1199 0.3239

_137Cs 1.261 0.5769 8.185

'1Co 0.00421 0.03420 0.03973

North Northwest Unit (A2400 307Cx)

Cs 0.12943 0.26071 0.49599 Note: Contains the Rx Bldg. ROLB, PPH, 74626 6,933 Class 1/2 Class 1/3 02 60Co 0.00735 0.03369 0.05632 portions of the Hot Lab, and PPH resin spill 7462 6,3 ls'/

Cas13C 37Cs 0.02758 0.05655 0.12184 C3aCo 132.0 86.46 604.8 03 'Cs 0.1697 0.365 0.7686 Plum Brook Reactor Decommissioning Project A-li Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project A-ll Revision 0 December 16, 2004

(

Supplemental Characterization Report Table A Environs Characterization Data Summary Survey Survey FSS Initial MIsotope Sigma; Mea n

Maximum PBRF Survey Area Area Area bPackage 1D Istpe Sim Measurement Measurement

)a (2

Classificationb Classificationc (pCi/g)

(pCilg)

(pCilg) in0a 0.00401 0.04431 0.05089 Cl 137cs 0.11521 0.26315 0.43784

- North Northeast Unit (A2400 308Cx) 6°Co 0.7439 1.216 4.914 Note: Contains the SEB, and porlions of the 121,072 11,248 Class 1/2 Class 3 C2 137 Sludge Basins and Precipitator.

"Cs 24.50 4.595 162.3 60Co 0.01902 0.05014 0.06873 C3 137Cs 0.05269 0.08165 0.3466 n3Co 0.01073 0.04560 0.07090

Northern Unit (A2400 309Cx) 13 7Cs 0.09318 0.23966 0.39998 Note: Contains portions of the Precipitator 110,287 10,246 Class 1/2/3 Class 3 and portions of the Sludge Basins.

C2

'lco 0.01325 0.04299 0.05908

'37Cs 0.1390 0.2868 0.7121

'GCo 0.00925 0.04903 0.06385

- Far Northern Unit (A2400 310Cx)

Cl 137Cs 0.16384 0.30677 0.61130 Note: Contains the Compressor Bldg, Gas 89,817 8,345 Class 3 Class 3 C2 13Co 0.02835 0.06782 0.1038 Storage Structure and Cryogenic and Gas 1 3 7 0s 0.1667 0.3156 0.7604 Supply Fanm.

'cO 0.01718 0.04392 0.05579 C3 1370s 0.06154 0.09394 0.2161

Open land areas outside the PBRF

'lCo 0.7930 0.6555 4.567 Fence (A2500 301 11) 1,524,748 141,649 Class 1/3Q N/A el Note: Areas to serve as buffer zones to 137Cs 4.036 2.106 19.080 impacted areas inside the fence (estimated)

-;,3,259,486 302,816

' Area estimated from facility drawings.

b Characterization Survey Units are not reflective of the anticipated FSS areas.

' Initial classifications taken from Table 4-2 of the Decommissioning Plan.

d Large Sigma values for areas specified in this table shall be recalculated using post remediation survey information.

Plum Brook Reactor Decommissioning Project A-12 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project A-12 Revision 0 December 16, 2004

Attachment B Survey Data Management System Reports NOTE The "Prescribed Number of Measurements" and "Action Level" input values were intentionally omitted when these reports were generated from the SDMS. Omission of these inputs has no effect on the reported measurement results.

The actual values for these data points can be found in the original reports contained within each respective survey package archive.

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: Cl Ii i 203CI Package Type:

Structure Survey Area Name:

Reactor Building (11 11)

Survey Unit Name:

Area 4 Stts*a Sumay w

0

Reaarm Snaitffi; y Mean:

144 Mean MDC:

425 Median:

153 Minimum MDC:

364 Standard Deviation:

220 Maximum MDC:

472 Range:

798 Action Level:

O Minimum:

-245 Test Pirformed Maximum:

551 No. Collected > Prescribed Yes

'Number of Uearsurements Max MDC c 50% Action Level No Prescribed:

0 Measurements >. Action Level Yes Collected:

8 Measurement Mean > Action Level Yes Reported:

N No. Measurement > Action Level 7

Survey Measurement Results by Download File, SurfacelMaterial, Room/ltem and SML Download ID S§urrace De'tector/ Rcorn:'t'.SML:

S~amplet Mireasure-

'GrosdW'NtB'eia~'

teit

~ate~lal Count l~if N'o:'

(4)'

COunt' -

menxt -:3e Resut'

'ActLevel-DL041008-003 FL1C2 B02FS 102(3 00004 1.00 452 1718 109

-109 DL041008-003 FL1D2 B02FS 00104 00008 1.00 414 1,543 202

-202 DL041008-003 FL1GI B02FS 00105 00008 1.00 413 1,527 198

-196 DL041008-003 FL1M1 B02FS 00005 00002 1.00 469 1,930 196

-196 DL041008-003 WL1D2 B02FS 00104 00005 1.00 472 2,307 551

-551 DL041008-003 WL1M1 B02FS 00005 00001 1.00 364 1.096 71

-71 OL041008-003 WL1M1 B02FS 00105 00007 1.00 405 1,352 71

-71 DL041008-003 WLtM1 B02FS 102/3 00003 1.00 405 1.052

-245 245 Download File, Average and/or Single Point (SP) Background Summary DLD41008-003 FL1C2 B02GS 102t3 00004 1.00 295 295 1,609 3L041008-003 FL1D2 B02GS 00104 00006 1.00 246 246 1,342 DL041008-003 FLIG1 B02GS 00105 00008 1.00 244 244 1,331 DL041004-003 FL1M1 B02GS 00005 00002 1.00 318 318 1,734 DL041008-003 WL1D2 B02GS 00104 00005 1.00 322 322 1,758 DL041008403 WLlMI B02GS 00005 00001 1.00 188 188 1,025 DL041008-003 WL1MI B02GS 00105 00007 1.00 235 235 1,282 DL041008-003 WLtM1 B02GS 102/3 00003 1.00 238 238 1,298 Characterization Survey Summary Report Page 1 of 2 03-Dec-04 MPWNH Constructors Plum Brook Reactor Decommissioning Project B-i Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-1 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: Cl III 203C1 Package Type:

Structure Survey Area Name:

Reactor Building (III1)

Survey Unit Name:

Area 4 QC Survey Measurement Results by Download File, SurfacelMaterial, Roomlltem and SML bodlidID Sufaed~~or i

a' aMsum;

.'G

-1 "Net-Beta rest OW01C034005 CLIGi 302QS C00005 00009 1.00 383 1.776 269

289 QC Download Flle, Average and/or Slngle Polnt (SP} Background Sunnmary DLO410SCB405 CL1G1 3C2PS 000085 00009 1.00 3s9 359 1,508 Download File, Instrumnent Summary and Survey Technician Mc Count frAra 1Sur vey DonodID M30SN DtMfe Be tc men(

1 Et R&Uekc... chnL&4l DL04t0CB-003 180715 44-116 PR788384 125 0.1467 PAM7843 aLo41008-0o0 180715 44B116 PR180386 125 0.1905 DPM0271 CharacterizatIon Survey Summary Report Page 2 of 2 03-Dec-04 (aMIVV Constructors Plum Brook Reactor Decommissioning Project B-2 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-2 Revision 0 December 16, 200.4

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky. Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS Survey Package Number: Cl 111 203C1 Package Type:

Structure Survey Area Name:

Reactor Building (Ii1)

Survey Unit Name:

Area 4

-S -tatistical SuMmay itieasurenienf Sonsitivi-ty a Activity P Activity ldnr/1 m2) (dom1100 cmn) a LLD 0 LLD (d=m11O cm2) Cdom/100 cmri Mean:

Median:

Standard Deviatlon:

Range:

Minimum:

0.35 7.70

-0.43 8.06 1.54 7.39 3.50 26.13

-0.43

-1.74 Mean LLD:

13.54 16.72 Minimum LLD:

13.54 16.72 Maximum LLD:

13.54 16.72 Action Level, 0.00 0.00 m -_^14

'Test PArtrn.ad '"

F.

-:-: I Maximum:

3.07 24.39 a

p Numrbe of Measdrements 2 '

Prescribed:

0 No. Collected a Prescribed Yes Yes Collected:

9 Max LLD < S0% Action Level No No Measurements > Action Level Yes Yes Measurement Mean > Action Level Yes Yes No. Measurement > Action Level 2

8 Loose Surface Contamination Results by Sample File, SurfacelMaterial, Roomiitem and SML Sampte ID Surae/etco/R rtr SWL

%AcvtI a

~ L15_,

a ciit LLd

,atrirhnt temNo (LC6~ ~(dpm/10OO

&n2) (pm it.00 cm2) lorrill cml dpm/1i00 e2

.(C) Type (LC6) "

c

~-~~'

CS041011-029 FLI Lai 4

FL 1-2 3.07 13.54

-1.74 16.72 CS041011-029 FLI Lai 4

FL 1-9 QA

-0.43 13.54 4.79 16.72 CS041011-029 FLI L01 4

FL 3-4

-0.43 13.54 1.52 16.72 CS041011-029 FLI L01 4

FL 4.8

-0.43 13.54 8.06 16.72 CSO41011-029 FLI L01 4

FL 5-8

-0.43 13.54 11.33 16.72 CS041011-028 WLI L01 4

WL 1-1

-0.43 13.54 8.06 16.72 CS041011-028 WL1 L01 4

WL343

-0.43 13.54 8.05 16.72 CS041011-026 WLI LO1 4

WL4-5

-0.43 13.54 4.79 16.72 CS041011-028 WLt LO1 4

WL5.7 3.07 13.54 24.39 16.72 Characterization Survey Summary Report Page 1 of I 03-iec-04 (011WH Constructors Plum Brook Reactor Decommissioning Project

.8-3 Revision 0 December 16. 2004 Plum Brook Reactor Decommissioning Project

' B-3 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: Cl1 1204CI Package Type:

Structure Survey Area Name:

Reactor Building (111 1)

Survey Unit Name:

Count Room StatiaicaSUnMaq-~"

~

MauietSnliiy Mean:

335 Mean MDC:

446 Median:

155 Minimum MOC:

388 Standard Deviation:

808 Maximum MDC:

513 Range:

2,094 Action Level:

0 Minimum:

-142

-J$'

Teat Performed Maximum:

1,952 No. Collected 2 Prescribed Yes

uinbr of Measurements Max MDC - 50% Action Level No Prescribed

0 Measurements > Action Level Yes Collected:

10 Measurement Mean > Action Level Yes Reported:

10 No. Measurement > Action Level 7

Survey Measurement Results by Download File, SurfacelMaterial, Room/ltem and SML D dnrpa (D ~

C S'rae etectorT Rfoom

' ML 'Sa'ple i~Measur~e-' Cross- <

e~t

'T)s

-i 1eiiaie 'Count

-Itemko.

2

)

O~ijot-n deMnt Bet

'AR'esult '(ActLevet-(C)

Tie$

MDC q

-Rsul DL041008-004 FL1C1 8O2FS 00006 00010 1.00 513 2,465 376

-378 DL041008-004 FL1C2 B02FS 00007 00007 1.00 469 1,969 234

-234 DL041008-004 FLIC2 BO2FS 00009 00003 1.00 488 1,740

-142 142 DL041008-004 FLIC2 BO2FS 00008 00005 1.00 442 2,127 594

-594 DL041008-004 FLIGI B02FS 00010 00001 1.00 448 1,761 185

-185 DLO41008-004 WLIM1 B02FS 00007 00008 1.00 414 1 287

-49 49 DLG41008-004 WL1M1 802FS 00008 00000 1.00 404 1,243

27 27 DL041008-004 WLIM1 BO2FS 00009 00004 1.00 389 1.278 98

-98 DL041008-04 WLIM1 802FS 00010 00002 1.00 388 1,292 125

-125 DL041008-004 WL1Y1 B02FS 00006 00011 1.00 509 4,008 1,952

-1.952 Download File, Average and/or Single Point (SP) Background Summary DL041008-004 FL1C1 B02GS 00006 00010 1.00 383 383 2,089 DL041008-004 FL1C2 802GS 00007 00007 1.00 318 318 1.734 DL041008-004 FL1C2 B02GS 00008 00005 1.00 281 281 1.532 OL041008-004 FL1C2 B02GS 09009 00003 1.00 345 345 1,881 DLO41008-004 FLIGI B02GS 00010 00001 1.00 289 289 1.576 OL041008-004 WL1M1 802GS 00007 00008 1.00 245 245 1.338 DLO41008-004 WLIM1 B02GS 00008 00006 1.00 233 233 1,271 DLO41008-004 WL1M1 B02GS 00009 00004 1.00 216 216 1.178 CharacterizatIon Survey Summary Report Page I of 2 07-Dec-04 MW/H Cons5ructors Plum Brook Reactor Decommissioning Project B-4 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-4 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONTNG Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: Cl 11I 204C1 Package Type:

Structure Survey Area Name:

Reactor Building (111 1)

Survey Unit Name-Count Room Download File, Average andlor Single Point (SP) Background Summary DonodI S 0~eDtc of

-Skmor 8kgd

Skgd.&'.

3igd 6~-`

(L~3 Ty~

(mi)n)i X

DL041008-004 WLIM1 802GS 00010 00002 1.00 214 214 1,167 DLO41008-004 WL1Y1 B02GS 00006 00011 1.00 377 377 2.058 QC Survey Measurement Results by Download File, SurfacelMaterial, Roomltem and SML DL041008-006 FL1C2 B020S 00010 60009 1.00 394 1,667 63

-63 QC Download File, Average andlor Single Point (SP) Background Summary Down6load10D Surae IaorRc~S l>

Bkd O--kgdd sk~g~et~

Maera CuitItmNo 1.6)

CT1tfle"

_'Counts

iot, (l.C4)'

4-or DL04100-006 FL1C2 B02PS 00010 00009 1.00 382 382 t6804 Download File, Instrument Summary and Survey Technician

_cdl i

MS D

DLo4100C8004 180715 44-116 PR188384 125 0.1467 PAM7843 DL041008-006 180716 44118 PR188386 125 0.1905 DRM0271 Characterization Survey Summary Report Page 2 of 2 07-Dec-04 (aJ bVV4i Construc tors Plum Brook Reactor Decommissioning Project B-S Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-5 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS Survey Package Number: C1111 204CI Package Type:

Structure Survey Area Name:

Reactor Building (III1)

Survey Unit Name:

Count Room Surrmaze ont',10nsldfvtt, Mean:

39 Mean MDC:

75 Median:

39 Minimum MDC:

75 Standard Deviation:

Maximum MDC:

75 Range:

0 ActIon Level:

0 Minimum:

39 M

estPerFormedY:

Maximum:

39 No. Collected a Prescribed Yes Number ot Measuremn t Max MDC c 50% Action Level No Prescribed 0

Measurements > Action Level Yes Collected 1

Measurement Mean > Action Level Yes Reported I

No. Measurement > Action Level 1

Survey Measurement Results by Download File, SurfacelMaterial, Roomitem and SML 0L041026004 WL1Y1 A03FS 00006 00011 1.00 75 49 39

-3 Download File, Average and/or Single Point (SP) Background Summary

-. :r..:r DL041026-004 WL1Y1 A03GS 00008 0001t 1.00 1

t 10 ac Survey Measurement Results bv Download File. Surface/Material. Roomlitem and SML a

e-P a,~.~

~

aesut-DLO41105-014 WL1Y1 A03QS 00006 00011 1.00 22 126 126

-128 QC Download File. Average and/or Single Point (SP) 8ackqround Summary DwL0411s WL1Y MP 0C00O 00011 1.00 0L041105-014 WL1Y1 A03PS 00008 00011 1.00 0

0 0

Characterization Survey Summary Report Page 1 of 2 a MWJH Constructors 07-Dec-04 Plum Brook Reactor Decommissioning Project B-6 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-6 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS Survey Package Number: ('1111 204C1 Package Type:

Structure Survey Area Name:

Reactor Building (lI I 1)

Survey Unit Name:

Count Room Download File, Instrument Summary and Survey Technician X-1NU:'t rA"fre, DL041026-004 201186 43-90 PR203396 125 0.082 PAM7843 DL041105-014 203W69 43-90 PR188387 125 0.10825 TEM5562 Characterization Survey Summary Report Page 2 of 2 07-Dec4A a PAWN constructors Plum Brook Reactor Decommissioning Project B-7 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-7 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS Survey Package Number: Cl11 1204CI Package Type:

Structure Survey Area Name:

Reactor Building (1111)

Survey Uait Name:

Count Room

-s Statistlcai:Sumwmeiy

i'->'0sraurmitsnil

-- i a Activity i3 Activity a LLD i LLD (dpmJ100 crm) (dpm/100 cm!

(dprn1100 cm2) (dpmiiOO cm2)

Mean:

-0.11 11.92 Mean LLD:

13.54 16.72 Median:

-0.43 14.59 Minimum LLD:

13.54 16.72 Standard Deviation:

1.06 9.89 Maximum LLD:

13.54 16.72 Range:

3.50 29.40 Action Level:

0.00 0.00 Minimum:

-0.43 1.74 rest Performed Maximum: -

3.07 27.66 a

3

-;< l umber of areasurements PrescrIbed:

0 No. Collected a Prescribed Yes Yes Callacted:

11 Max LLD - 50% Action Level No No Measurements : Action Level Yes Yes Measurement Moan > Action Level No Yes No. Measurement > Action Level 1

9 Loose Surface Contamination Results by Sample File, SurfacelMaterial, Roorn/ltem and SML AcS*"

S t1

~ Mt~rai-C~jn Iem o.'(LQ) dpn

&ni)

(pm/00cm)(dmt1060 cm2)i ~(0dp m / to cm2 CS041011-030 FL1 L01 N/A FL 10-1 40.43 13.54 27:66 16.72 CS041011-030 FL1 L01 N/A FL 10-9QA

-0.43 13.54 1.52 16.72 CS041011-030 FL1 L01 N/A FLP-10

-0.43 13.54 8.06 16.72 CSOA10114030 FLI L01 N/A FL7-7

-0.43 13.54

-1,74 16.72 CS041011-030 FL1 L01 N/A FL8-5

-0.43 13.54 21.13 16.72 CS041011-030 FLI L01 N/A FL 9-3

-0.43 13.54

-1.74 16.72 CS0410tt-031 WL1 L01 NIA WL 10-2

-0A3 13.54 21.13 16.72 CS0410114031 WL1 L01 N/A WLS-11

-0.43 13.54 8.06 16.72 CS041011-031 WL1 L01 N/A WL74

-4OA3 13.54 17.86 16.72 CS041011-031 WLt L01 N/A WL34 3.07 13.54 14.59 16.72 CS0410114031 WL1 L01 N/A WL9-4

-0.43 13.54 14.59 16.72 Characterization Survey Summary Report Page 1 of I a

MVWH Constructor5 07-Dec-04 Plum Brook Reactor Decommissioning Project B-8 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-8 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: C111 301C1 Package Type:

Structure Survey Area Name:

Reactor Building (1111)

Survey Unit Name:

Reactor Building Roof & Exterior Walls lealua ><Measuremnrt'SenatftyM-S--

Statisica Summary;

~

,,-4^Ft' X%

Mean:

Median:

Standard Deviation:

Range:

Minimum:

Mean MDC:

Minimum MDC:

404 298 298 1,156 5,349

-160 Maxlmum:

5,188

.3-Number of Measurements Prescribed:

0 Collected:

28 Reported:

28 Maximum MDC:

633 Action Level:

0

'-';g-'

Teat i'ertormed

__2 No. Collected > Prescribed Yes Max MDC e 50% Action Level No Measurements > Action Level Yes Measurement Mean > Action Level Yes No. Measurement > Action Level 25 Survey Measurement Results by Download File, Surface/Material, Roomiltem and SML

'DownboadlD'- ^Suriac Dcectcr/Room or -SML<;,:S~anip Miease

'Grss

'Ncet~ea' Tesat (LC) Tpe LCS

~

~ ~Tli~

M C

~

'z1~>Re ult)"

DL041105-010 BEIM1 B02FS 00006 00001 1.00 415 1,772

-8 8

DL041105-010 BEIM1 B02FS 00007 00001 1.00 476 2,515 155

-155 DLO411C6 C10 3E1M1 802FS 00008 00001 1.00 528 3,099 181

-181 OL041105010 BEIM1 B02FS 00009 00001 1.00 340 1,235 55

-55 DL040928-007 RF1G1 802FS 00005 00001 1.00 413 4,584 3,234 4,234 DLQ40928-007 RF1G1 B02FS 00005 00002 1.00 404 2,918 1,647

-1,647 DLc40928-007 RFIGI B02FS 00005 00003 1.00 371 1.527 464

-464 DLc40928-007 RF1G1 B02FS 00005 00004 1.00 424 1,761 364

-354 DL040928-007 RF1IGI 02FS 00005 00005 1.00 395 1,756 540

-540 DLo40928-007 RF1Gt 802FS 00005 00008 1.00 441 1,952 425

-425 0L040928-007 RF1IG1 B02FS 00005 00007 1.00 400 3,588 2,339

-2,339 DL040928-007 RF1G1 802FS 00005 00008 1.00 409 2,040 731

-731 DLo41007-002 RF1GI S02FS 00006 00001 1.00 342 1,293 173

-173 DL041007-002 RF1G1 B02FS 00005 00003 1.00 325 1,013 4

-4 OL041013-001 RFIG1 802FS 00005 00003 1.00 579 8,692 5,188

-8,188 DL041020-002 RF1IG1 802FS 0005 00007 1.00 466 2,167 120

-120 DL041123-001 RF1IG1 802FS 00002 00026 1.00 298 1.044 200

-200 DL041123-001 RF1G1 802FS 00005 00021 1.00 323 1,507 511

-511 DL041123-001 RF1G1 802FS 00005 00022 1.00 329 1.489 453

-453 DL041123-001 RF1G1 B02FS 0005 00023 1.00 452 2,400 404

-404 OLC41123-001 RF1IG1 802FS 00005 00024 1.00 347 1,484 329

-329 DL041123-001 RF1G1 802FS 00005 00025 1.00 313 1.338 404

-404 DL041123-001 RF1G1 802FS 0005 00027 1.00 374 1.618 267

-267 Characterization Survey Summary Report Page 1 of 3 03-Dec04 (a

MW Constructors Plum Brook Reactor Decommissioning Project B-9 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-9 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONLNG Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS SurveyPackageNumber: Cli 301C1 Package Type:

Structure Survey Area Name:

Reactor Building (1111)

Survey Unit Name:

Reactor Building Roof & Exterior Walls Survey Measurement Results by Download File, SurfacelMaterlal, Room/Item and SML Dd~n~oa 1~S to i~

L M n jd rs at it Test

(

10) yp 0 :

'~ 0Twn aMDC n 4Qf Laesu -

DL041123-001 RF1GI 802FS 00005 00028 1.00 338 1.307 213

-213 DL041007-002 RF1M1 B02FS 00005 00002 1.00 352 1,160

-36 36 DL041007-002 RFIM1 302FS 00005 00004 1.00 318 1,164 200

-200 DL041013-001 RF1M1 B02FS 00005 00004 1.00 833 4,057

-160 160 DL041020-002 RF1M1 8O2FS 00005 00008 1.00 522 2,614 23

-23 Download File, Average and/or Single Point (SP) Background Summary bDownoiad ID Srfae;i Dii Roo*m F

S-ii Bi'd kg-d -i'B Bkgd S kdg B-et

DL041105-010 BElM1 802GS 00006 00001 1.00 424 424 1,781 DLO41105-010 BElM1 B02GS 00007 00001 1.00 562 562 2,360 DL041105-010 BE1M1 B02GS 00008 00001 1.00 695 695 2,919 DLO41105-010 BE1MI B02GS 00009 00001 1.00 281 281 1,180 0L040928-007 RF1G1 802GS 00005 00001 1.00 244 244 1,331 DLo40928-007 RF1G1 B02GS 00005 00002 1.00 233 233 1,271 DL040928-007 RFIG1 B02GS 00005 00003 1.00 195 195 1,063 DL040928-007 RF1G1 B02GS 00005 00004 1.00 258 258 1,407 DL040928-007 RF1G1 802GS 00005 00005 1.00 223 223 1216 DL040928-007 RF1G1 B02GS 00005 00006 1.00 280 280 1,527 0D040928-007 RF1G1 802GS 00005 00007 1.00 229 229 1,249 DL040928-007 RF1G1 B02GS 00005 00008 1.00 240 240 1,309 DL041007-002 RF1G1 B02GS 00005 00001 1.00 252 252 1,120 DL041007-002 RFIGI 802GS 00005 00003 1.00 227 227 1,009 DL041013-001 RF1G1 B02GS 00005 00003 1.00 830 830 3,504 01041020-002 RF1G1 B02GS 00005 00007 1.00 444 444 2.047 DL041123-001 RFIG1 B02GS 00002 00026 1.00 190 190 844 DL041123-001 RF1GI B02GS 00005 00021 1.00 224 224 996 DLo41123-001 RFIG1 802GS 00005 00022 1.00 233 233 1,036 DL041123-001 RF1G1 B02GS 00005 00023 1.00 449 449 1,996 0L041123-001 RF1G1 802GS 00005 00024 1.00 260 260 1,156 DL041123-001 RF1G1 B02GS 00005 00025 1.00 210 210 933 DL041123-001 RF1G1 802GS 00005 00027 1.00 304 304 1,351 DL041123-001 RF1G1 B02GS 00005 00028 1.00 246 246 1,093 DL041007-002 RF1M1 802GS 00005 00002 1.00 269 269 1,196 DL041007-002 RF1M1 802GS 00005 00004 1.00 217 217 964 Characterization Survey Summary Report Page 2 of 3 03-Dec-04

/^

MVH Constructors Plu Bro Reco Deosinn Prjc B-Reiso 0 Deeme 16 2004 Plum Brook Reactor Decommissioning Project B-10 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky. Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: ClI11 301C1 Package Type:

Structure Survey Area Name:

Reactor Building (I I 1 1)

Survey Unit Name:

Reactor Building Roof & Exterior Walls Download File, Average and/or Single Point (SP) Background Summary

..,x..

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DL041013-001 RFiMi 802GS 00005 00004 1.00 999 999 4,217 DL041020-002 RF1M1 B02GS 00005 00008 1.00 562 562 2,591 QC Survey Measurement Results by Download File, Surface/Material, Roomiltem and SML

_e DL041105-011 BE1M1 802QS 00006 00001 1.00 378 1,579 118

-118 DL040928-005 RF1G1 3020S 00005 a0004 1.00 371 1,906

81

-56t QC Download File, Average andfor Single Point (SP) Background Summary DL041105011 BE1M1 B02PS 00006 00001 1.00 345 346 1,461 DL040928-0O5 RFtG1 e02Ps 00005 00004 1.00 29s 296 1,324 Download Filo, Instrument Summaryand Survey Technician DL040928u005 180739 44116 PR1S383-125 017885 SLM2556 DL040928 007 160715 44-116 PRtSB3S4 125 0.1487 SLM2555 DL041007-002 189088 44-116 PR197315 125 0.18 PAM7843 DL0410134001 192808 44-116 PR197314 125 0.1895 TOG7534 DL0410204002 193707 44e116 PR203147 125 0.1735 TDG7534 DL0411064tO0 180716 44-11a PR188386 125 0.1905 SLM2558 DL04110t-011 192606 44-116 0

R197314 125 0.189S ter DL041123-001 192088 44-115 PR197315 125 0.18 TDG7534 I

Characterization Survey Summary Report Page 3 of 3 03-Dec-04 PAMWFH Construrtors Plum Brook Reactor Decommissioning Project B-il Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-l1l Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS Survey Package Number: Cl 11301C1 Package Type:

Structure Survey Area Name:

Reactor Buildhng (1111)

Survey Unit Name:

Reactor Building Roof & Exterior Walls Sttstiald Sunia Senstivit d C_

Mean:

79 Mean MDC:

48 Median:

50 Minimum MDC:

25 Standard Deviation:

88 Maximum MDC:

79 Range:

199 Action Level:

0 Minimum:

8 3

Test Parformed '

MaxImum:

207 No. Collected a Prescribed Yes "Numberof Measurements Max MDC c 50% Action Level No Prescribed 0

Measurements> Action Level Yes Collected 4

Measurement Mean > Action Level Yes Reported 4

No. Measurement > Action Level 4

Survey Measurement Results by Download File, Surface/Material, Room/item and SML Rcoin~Mi~

asie-ross NetAlpha

-eat Doila ID Surfacei/

betectori

-Sapeg Mei:e~t i

DL040928-008 RF1G1 A03FS 00006 00001 1.00 25 41 41

-41 DL040928-008 RF1G1 A03FS 00005 00002 1.00 25 8

8

-8 DL040928-008 RF1G1 A03FS 00005 OOC03 1.00 79 75 58

-58 DL040928-008 RF1G1 A03FS 00005 00004 1.00 63 216 207

-207 Download File, Average and/or Single Point (SP) Background Summary pha DL040928-008 RF1Gt A03GS 00005 00001 1.00 0

0 0

DL040928-008 RF1Gt A03GS 00005 00002 1.00 0

0 0

DL040928-OOS RF1Gt A03GS 0000 00003 1.00 2

2 17 DL040928-008 RF1G1 A03GS 00005 00004 1.00 1

1 8

Download File. Instrument Summary and Survey Technician 0L040928-0O8 180718 43-90 PR188388 125 0.0965 DRM0271 Characterization Survey Summary Report Page 1 of I 03-Dec-04 (MWVH Constructors Plum Brook Reactor Decommissioning Project B-12 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-12 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA MEASUREMENT RESULTS SurveyPackageNumber: Cli 301C1 Package Type:

Sticture Survey Area Name:

Reactor Building (III1)

Survey Unit Name:

Reactor Building Roof & Exterior Walls S_.A ttlstical Summiry (con-cts -,

Ciatlt Summaryiil meter).

72 7.43_Pah Mean:

7.24 Mean:

7.43 Median:

7.24 Median:

7.43 Standard Deviation:

Standard Deviation:

Range:

0.00 Range:

0.00 Minimum:

7.24 Minimum:

7.43 Maximum:

7.24 Maximum:

7.43 Contact Survey Measurement Results by Download File, Surface/Material, Roomiltem and SML SgEii DL041119-004 RFIG1 G01FN 00005 00003 7,578 7.2 1 Meter Survey Measurement Results by Download FIle, Surface/Material, Roomlitem and SML OdwnfriladI'11 Surface Dq IML-LoPM Material

')on-yo trn

-;-4X oUnWs.

at DL041119-004 RFIG1 G02FN 0000 00003 7,775 7A Download File, Instrument Summaryand Survey Technician 0L041119-004 189094 44-10 PR196943 B.28E+10 PAM7843 I The Gamma Cal Factor used to convert the counts per minute Into an exposure rate was obtained using a Cs-137 source.

CharacterIzatIon Survey Summary Report Page 1 of I 03-Dec-04

\\ffJ1 MlJWH Constructors Plum~~

Bro Reco Deomsinn Prjc B.

Reiin0Dcebr1,20 Plum Brook Reactor Decommissioning Project B-13 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS Survey Package Number: C1111 301CI Package Type:

Structure Survey Area Name:

Reactor Building (1 1 1)

Survey Unit Name:

Reactor Building Roof & Exterior Walls s' ;Statisttcsi StumnarS

-' 'A$f S

Measurement Sersistlvity --

,.3!.

a Activity a Activity a LLD 3 LLD (dpm/1CO cm')

(dpm/100 cm')

(dpm/lOO cm')

(dpm/100 cm')

Mean:

0.39 8.81 Mean LLD:

12.82 17.03 Median:

-. 42 5.88 Minimum LLD:

11.91 16.72 Standard Deviation:

2.01 9.44 Maxlmum LLD:

13.54 17.36 Range:

6.98 28.38 Action Level:

0.00 0.00 Minimum:

-0.43 1.74 Maximum:

6.55 26.62 a

3 Number ofMeasu'rements..a::

Prescribed:

° No. Collected 2 Prescribed Yes Yes Collected:

14 Max LLD c 50% Action Level No No Measurements > Action Level Yes Yes Measurement Mean : Action Level Yes Yes No. Measurnement ActicnLevel 2

11 Loose Surface Contamination Results by Sample File, Surface/Material, Roomiltem and SML fSamhp ID Suwfacel DetectorrRon ir

vit

'LLD Activit"'aTLL Pvfatearal Count ItemNo.

(LC6$.-'mw0 c p

m cm') (Wdpml100 cm) (dpm/100 cm')

,t,(LC4);,

CS04111s-001 BE1 L01 a

8E1-1-1 4.23 12.06 28.62 17.25 CS041115-001 BE1 LO1i BE1-1-2 3.16 12.06 10.65 17.25 CS041115-001 8E1 L01 6

BE1-1-3 6.55 12.06 7.45 17.25 CS041115-001 361 L01 3

BE1-1-4

-0.23 12.06 4.28 17.25 CSO41011-027 RF1 L.01 5

RF45.1

-0.43 13.54 21.13 16.72 C8041011-027 RF1 L01 5

RF1-5-2

-0.43 13.54 1.52 16.72 CS041011-027 RF1 L01 8

RF1-5-3

-0.43 13.54

-1.74 18.72 CS041011-027 RF1 L01 5

RF1-5-4

-0.43 13.54 1.52 16.72 CS041011-027 RF1 L01 5

RFI-5-5 40.43 13.54

-1.74 16.72 CS041011-027 RF1 L01 5

RFI-5S

-0.43 13.54

-1.74 16.72 CS041104-001 RF1 L01 5

RF1-5-5

-0.20 11.91 18:99 17.36 CS041104401 RF1 L01 5

RF1-56

-0.20 11.91 16.99 17.36 CS041202-089 RF1 Lol 5

5-7 40.42 13.10 4.30 17.17 Characterization Survey Summary Report Page 1 of 2 03-Dec-04 1ft MVl-Constructors Plum Brook Reactor Decommissioning Pro]ect B-14 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-14 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS SurveyPackage Number:

Clii1 301C1 Package Type:

Structure Survey Area Name:

Reactor Building (I L I 1)

Survey Unit Name:

Reactor Building Roof & Exterior Walls CS041202-089 RF1 L01 5

54

.0.42 13.10 17.08 17.17 Characterization Survey Summary Report Page 2 of 2 03-Oec-04 8

MLVH Constructors Plum Brook Reactor Decommissioning Project B-iS Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-15 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA SPECTRAL ANALYSIS RESULTS Survey Package Number: C1III 301CI Package Type:

Structure Survey Area Name:

Reactor Building (1111 )

Survey Unit Name:

Reactor Building Roof'& Exterior Walls Co-60 (pClg)

Cs-137 (pCUg)

Unity Test Mean:

N/A 4.669E-01 0,03 Median:

N/A 4.669E-01 0.03 Standard Deviation:

N/A 2.335E-01 0.01 Range:

N/A 4.669E-01 0.02 Minimum:

N/A 4.669E-01 0.02 Maximum:

N/A 4.669E-01 0.04 g -Mo e inert t'Stnistv l

-n$.

Co-O6 (pCi/lg Cs-137 (pCUg)

Mean MDC:

8.199E-02 8.035E-02 Minimum MDC:

5.570E202 5.528E-02 Maximum MDC:

9.848E-02 1.384E-01 Action Level:

3.80 11.71

f,.,

fr;;-r

.x-'>7

'Numie>o rtdtieasurements¢ - - -...

Co-50 (pCVgl Ca-137 (pCi/g)

Prescribed:

0 0

Collected:

4 4

Positve Results:

0 1

Co460 (pCI/g)

Cs-137 (pCga)

Unity Test No. Collected > Prescribed Yes Yes Max MDC e 10% Action Level Yes Yes Measurements > Action Level No No No Measurement Mean > Action Level NIA No No No. Measurement > Action Level 0

0 8

Gamma Spectral Analysis Results bvSample File. Surface/Material. Roomfitem and SML MaerefCoin~Itm o

LCJ~~.

~il&~M~

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~DC Teat CSO41011-010 RF1 L11 5

1 148 8.9i8E-02 5.40E-02 CS041011-012 RF1 Lt1 5

2 155.3 8.421E-02 6.929E-02 CS041027-003 RF1 L11 5

3 132.8 9.848E-02 1.384E-01 CS041027-004 RF1 L11 5

4 234.8 5.570E-02 4.869E-01 5.528E-02 Characterization Survey Summary Report Page 1 of 2 07-Dec-04 a

MNWH Constructors Plum Brook Reactor Decommissioning Project B-i 6 Revision 0 December 16, 2004 Plum Brookc Reactor Decommissioning Project B-16 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOIN1MMISSIONING Sandusky, Ohio GAMMA SPECTRAL ANALYSIS RESULTS SurveyPackageNumber: Cl11 301CI Package Type:

Structure Survey Area Name:

Reactor Building (1 1)

Survey Unit Name:

Reactor Building Roof & Exterior Walls QC Gamma Spectral Analysis Results by Sample File, SurfacelMaterlal, Roomlitern and SML Sape ID qrfgce/ Oeet/on&M apl a ISO It6 s-3 XC.3 hl al Count Ite; t

t N

t T

U, CSo41011-11 RF1 Q11 5

2 99.5 1.314E-01 1.861E-01 8.570E-02

For smears counted by gamma spectral analysis (S4mple Weght I g) thc actual reporting units are Total Activity In pCI.

Legend Yellow -0.9 to 9.9X AL Other Plant Derived Radionuciides Identified

.9.-

-A-1-4 1 tt' 91 Nso4 0.J.1 EII t I4 I I

I CS041011-.010 CS04I1011-012 CS041027..003 J 1

__II l_l_

I CS041027-004 i

_ A..

I Characterizatlon Survey Summary Report Page 2 of 2 07-Dec-04 a

MWH Constructors Plum Brook Reactor Decommissioning Project B-i 7 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-17 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS SurveyPackageNumber: C1112 107CI Package Type:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot Cells 1-7 Structural Surfaces St stticaI Summary Mean:

Median:

Standard Deviation:

Range:

1,547,828 205,724 3,417,053 11,661,065 Mean MDC:

Minimum MDC:

Maximum MDC:

1.711 559 6,469 Action Level:

0

&1, Test Perifmed Minimum:

3,196 Maximum:

11,664,262 dNumber of Maiureient Prescribed:

Collected:

Reported:

0 24 24 No. Collected a Prescribed Max MDC c 50% Action Level Measurements > Action Level Measurement Mean > Action Level No. Measurement > Action Level Yes No Yes Yes 24 Survey Measurement Results by Download File. SurfacelMaterial, Roomrltem and SML D ownoa ID SOr ac D tectorl RMrt~ '

M Sa p e tta ue ~

rod §

NetlBela, test

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OL031004-001 FLIMI 802FS 00007 G0001 0.50 2,377 522,047 494,785

-494,785 DL031004-001 FLIMI B02FS 00007 00002 0.50 1,875 466,084 449,224

-449,224 OL031104-003 FL1Mt B02FS 00005 00001 0.50 6.489 9,694,766 9,489,710 -9,489,710 DL031104-003 FLIMI 802FS 00005 00002 0.50 1,050 164,925 159,766

-159.766 DL031204-005 FLtM1 B02FS 00003 00001 0.50 3,075 11,710.159 11.664.262 11,664,262 DL031204-005 FLtM1 B02FS 00003 00002 0.50 6,145 9,878,551 9,693,607.9,693,607 DL031204-005 FL1Mt B02FS 00004 00001 0.50 1,053 2,068,037 2,060,641 -2,060,841 DL031204-005 FLIMt B02FS 00004 00002 0.50 1,149 160,421 154,206

-154,206 0L031004401 WLIC2 B02FS 00007 00002 0.-0 1,179 63,355 58,804

-56,804 OL031004-001 WLIM1 B02FS 00007 00001 0.60 1,145 74,411 68,243 468,243 OL031104-003 WLUM1 BO2FS 00008 00001 0.50 836 108,271 105,047

-105,047 DL031104-003 WLtM1 B02FS 00005 00002 0.50 1,081 230,430 224,953

-224,953 DL031204-005 WLIMI B02FS 00003 00001 0.50 2,201 93,589 70,243

-70,243 DL031204-005 WL1M1 B02FS 00003 00002 0.50 2,123 888,682 854,981

-864,981 DL031204-005 WL1M1 B02FS 00004 00001 0.50 736 49,327 46.850

-46.850 OL031204-005 WL1Mt B02FS 00004 00002 0.50

.110 274,794 269,009

-269,09 DL031004-001 WU1C2 B02FS 00007 00001 0.50 926 70,757 66,776

-66,776 DL0311044003 WU1C2 802FS 00008 00002 0.50 750 6.776 3,196

-3,196 DL031204-005 WU1C2 B02FS 00003 00001 0.50 1,017 239.131 234,299

-234,299 DL031204-005 WU1C2 B02FS 00003 00002 0.50 1.176 257,832 251,318

-251,318 DL031204-005 WU1C2 B02FS 00004 00001 0.50 810 114,121 111,103

-111,103 DL031204-005 WU1C2 B02FS 00004 00002 0.50 749 183,065 186.495

-188,495 DL031004-001 WU1MI B02FS 00007 00002 0.50 1,474 418,430 408,103

-408,103 Characterization Survey Summary Report Page 1 of 3 07-Dec-04 (aPWH Constructors Plum Brook Reactor Decommissioning Project B-iS Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-18 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: Cl1 12 107Cl Package Type:

Structure Survey Area Name:

Hot Laboratory (1I1 12)

Survey Unit Name:

Hot Cells 1-7 Structural Surfaces Survey Measurement Results by Download File, Surface/Material, Room/Item and SML Dic~1l~adID Sui~itscDetactoir/ R

.orr L - Sanl iere-'

rcsi Netbeta i-T DL031104-003 WU1M1 B02FS 00005 00001 0.50 559 15,439 14,047

-14,047 Download File, Average and/or Single Point (SP) Background Summary DorMadID surfaoW etaltrIti

'~i$<. kgd E kgd-\\->-

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Bkdg3e~t DL031004-001 FL1M1 B02GS 00007 00001 0.50 2,917 5,634 27,262 DL031004-001 FL1M1 B02GS 00007 00002 0.50 1,804 3.608 16,860 DL031104-003 FL1Mt 802GS 00005 00001 0.50 21,941 43,882 205,056 OL031104-003 FL1MI B02GS 00005 00002 0.50 552 1.104 5,159 DL031204-005 FL1 Mt B02GS 00003 00001 0.50 4,911 9,822 45,897 DL031204-005 FLiMt DO2GS 00003 00002 0.50 19,789 39,578 184,944 DL031204-005 FLIM1 B02GS 00004 00001 0.50 556 1,112 5,196 DL0312044005 FLIMl B02GS 00004 00002 0.50 655 1,330 6,215 DL031004-001 WL1C2 802GS 00007 00002 0.50 701 1;402 6,551 DL031004-001 WL1M1 B02GS 00007 00001 0.50 e60 1,320 B,168 DL0311044003 W1IM1 B02GS 00005 00001 0.50 345 690 3,224 DL031104-003 WLIM1 802GS 00005 00002 0.50 858 1,172 5,477 DL031204-005 WLIMI 902GS 00003 00001 0,50 2,498 4,996 23,346 DL031204-005 WL1M1 B02GS 00003 00002 0.50 2,322 4,644 21.701 DL031204-005 WL1MI 802GS 00004 00001 0.50 265 530 2,477 DL0312044005 W1MI Bo2GS 00004 00002 0.50 619 1,238 5,785 DL031004-001 WU1C2 B02GS 00007 00001 0.50 426 852 3,981 DL031104-003 WU1C2 B02GS 00005 00002 0.50 276 552 2,579 DL031204-005 WUIC2 BO2GS 00003 00001 0.50 517 1,034 4,832 DL031204-005 WU1C2 B02GS 00003 00002 0.50 697 1,394 6,514 DL031204-005 WU1C2 B02GS 00004 00001 0.50 323 646 3.019 D0L31204-005 WU1C2 802GS 00004 00002 0.50 275 550 2.570 DL031004-001 WU1M1 B02GS 00007 00002 0.50 1.105 2,210 10,327 DL031104-003 WUIMI B02GS 00005 00001 0.50 149 296 1,393 Download File, Instrument Summary and Survey Technician

'....3..t eteor-Ar r

E, Ol~~I~ M35 btModl~~Gti~~ISN acniia DL031004-001 180718 44-116 PR187571 125 0.1712 BA08861 DL031104-003 180718 44-116 PR187571 125 0.1712 BA08861 Characterization Survey Summary Report Page 2 of 3 07-Dec.04

(

MWH Constructors Plum Brook Reactor Decommissioning Project B-19 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-19 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: Cli 12 107C1 Package Type:

Structure Survey Area Name:

Hot Laboratory (1 112)

Survey Unit Name:

Hot Cells 1-7 Structural Surfaces Download File, Instrument Summary and Survey Technician Download ID M2350 $N I tI7e 44-116 PR187571 125c An DL031204-005 180718 44-118 PR187571 125 0.1712 BAO8661 Characterization Survey Summary Report Page 3 of 3 07-Dec-04 (a

MVH Constructors Plum Brook Reactor Decommissioning Project B-20 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-20 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMNISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS SurveyPackageNumber:

C1112107CI Package Type:

Structure Survey Area Name:

Hot Laboratory ( 112)

Survey Unit Name:

Hot Cells 1-7 Structural Surfaces Mean:

133 Mean MDC:

51 Median:

42 Minimum MDC:

18 Standard Deviation:

205 Maximum MDC:

80 Range:

899 Action Level:

0 Minimum:

-18 Teatparormed Maximum:

882 No, Collected ? Prescribed Yes Numbe ofMasurements Max MDC < 50% Action Level No Prescribed 0

Measurements > Action Level Yes Collected 24 Measurement Mean : Action Level Yes Reported 24 No. Measurement > Action Level 21 Survey Measurement Results by Download File, Surface/Material, Roomiltem and SML Matril oun IemNo~(L8)

O~n hrhtj~Aiia Result

'(A

'Lvei (LO3 Typ (LS) 4~Trne-~

MC'

~Result DL030904-003 FLIMI A03FS 00007 00001 1.00 18 42 42

-42 DL030904-003 FLIM1 A03FS 00007 00002 1.00 18 6

6

-6 DL031104-001 FL1MI A03FS 00005 00001 1.00 57 232 220

-220 DL031104-001 FL1MI A03FS 00005 00002 1.00 6B 36 18

-18 OL0312044003 FL1MI A03FS 00003 00001 1.00 46 18 12

-12 DL031204-003 FL1M1 A03FS 00003 00002 1.00 48 888 882

-882 DL031204-003 FL1M1 A03FS 00004 00001 1.00 46 304 298

-298 DL031204-003 FL1MI A03FS 00004 00002 1.00 18 77 77

-77 DL030904-003 WL1C2 A03FS 00007 00002 1.00 73 24 0

0 DL030904-003 WL1M1 A03FS 00007 00001 1.00 46 30 24

-24 OL031104-001 WL1MI A03FS 00005 00001 1.00 73 54 30

-30 DL031104-001 WLIMI A03FS 00005 00002 1.00 73 18

-S 6

DL031204-003 WULMI A03FS 00003 00001 100 48 30 24

.24 DL031204-003 WLIMi A03FS W0003 00002 1.00 57 113 101

.101 DL031204-003 WL1M1 A03FS 00004 00001 1.00 46 30 24

-24 DL031204-003 WL1M1 A03FS 00004 00002 1.00 18 42 42

-42 DL030904-003 WUIC2 A03FS 00007 00001 1.00 46 42 36

-36 DL031104-01 WU1C2 A03FS 00005 00002 1.00 66 0

-18 18 DL031204-003 WUIC2 A03FS 00003 00001 1.00 66 179 161

-161 DL031204-003 WU1C2 A03FS 00003 00002 1.00 73 477 453

-453 DL0312044003 WU1C2 A03FS 00004 00001 1.00 46 101 95

-95 DL031204-003 WU1C2 A03FS 00004 00002 1.00 80 393 363

-363 DL030904-003 WUIMI A03FS 00007 00002 1.00 46 298 292

-292 Characterization Survey Summary Report Page 1 of 3 07-Dec.04 (a MW) Constructors Plum Brook Reactor Decommissioning Project B-21 Revision 0 December 16, 2004 Plum Brookc Reactor Decommissioning Project B-21 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS SurveyPackageNumber:

C1112107C1 Package Type:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot Cells 1-7 Structural Surfaces Survey Measurement Results by Download File, Surface/Material, Roomfltem and SML

-~

DL031104-001 WU1MI A03FS 00005 0001 1.00 57 36 24

-24 Download File. Average and/or Single Point (SP) Background Summary D;

g BAliph DL030904403 FLIMI AO3GS 00007 00001 1.00 0

0 0

0L030904-003 FL1 MI A03GS 00007 00002 1.00 0

0 0

OL031104-001 FLIMI A03GS 00005 00001 1.00 2

2 12 OL031104-001 FLIMI A03GS 00005 00002 1;00 3

3 18 DL031204-003 FLIMI A03GS 00003 00001 1.00 1

1 6

DL031204-003 FLIMI A03GS 00003 00002 1.00 1

1 taS OL031204-003 FLIMI A03GS 00004 00001 1.00 1

1 6

DL031204-003 FLIM1 A03GS 00004 00002 1.00 0

0 0

DL030904-003 WLIC2 A03GS 00007 00002 1.00 4

4 24 01030904-003 WLIM1 A03GS 0000?

00001 1.00 I

1 e

OL031104001 WL1M1 A03GS 00005 00001 1.00 4

4 24 DL03110"401 WLtM1 A03GS 00005 00002 1.00 4

4 24 DL031204-003 WLIM1 A03GS 00003 00001 1.00 1

1 6

DL031204-003 WL1MI A03GS 00003 00002 1.00 2

2 12 DL031204-003 WLIM1 A03GS 00004 00001 1.00 1

1 6

DL031204-003 WLIM1 A03GS 00004 00002 1.00 0

0 0

DL030904-003 WU1C2 A03GS 00007 00001 1.00 1

1 6

DL031104-001 WUtC2 A03GS 0005 00002 1.00 3

3 1a DL0312044003 WU1C2 A03GS 00003 00001 1.00 3

3 18 DL031204-003 WUIC2 A03GS 00003 00002 1.00 4

4 24 DLO31204-003 WUIC2 A03GS 00004 00001 1.00 1

I a

DL031204-003 WU1C2 A03GS 00004 00002 1.00 5

6 30 DL030904-003 WUlMi A03GS 00007 00002 1.00 1

1 6

DL031104001 WU1M1 A03GS 00006 00001 1.00 2

2 12 Download File, Instrument Summary and Survey Technician U:

DL003004-003 180716 43-90 PRiSB387 125 0.1343 BA08861 DL031104-01 180718 43.90 PR188387 125 0.1343 BADa661 Characterization Survey Summary Report Page 2 of 3 07-Dec-04

(

MWN Constructors Plum Brook Reactor Decommissioning Project B-22 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-22 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky. Ohio DIRECT ALPHA MEASUREMENT RESULTS SurveyPackageNumber: C1112 107CI Package Type:

Structure Survey Area Name:

Hot Laboratory (I 112)

Survey Unit Name:

Hot Cells 1-7 Structural Surfaces Download File, Instrument Summary and Survey Technician Setetoru SrVey Da 1Model',

[3-9O P

7 12d0133 an DL031204-003 180716 43-90 PRIBS837 125 0.1343 BAD8861 Characterization Survey Summary Report Page 3 of 3 07-Dec-04 MWVH Constructors Plum Brook Reactor Decommissioning Project B-23 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-23 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA MEASUREMENT RESULTS SurveyPackageNumber:

Cl11 107CI Package Type:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot Cells 1-7 Structural Surfaces Statistical summary (coitacti 7.dStaitical StmmiY(1'Mnter) plbthr Mean:

181.87 Mean:

77.67 Median:

84.00 Median:

48.05 Standard Deviation:

236.98 Standard Deviation:

83.65 Range:

844.44 Range:

374.88 Minimum:

16.44 Minimum:

16.55 Maximum:

880.88 Maximum:

391.42 Contact Survey Measurement Results by Download File, Surface/Material, Roomnlitem and SML onbSID

&'~e DO4 f

Oti p

SLp<

~

'/

1/2 (L

-lh)

DL030904-004 FL1M1 GO1FN 00007 W0001 337,144 414.6 DL030904-004 FLIM1 G01FN 00007 00002 120,076 147.8 DL031104-02 FL1M1 GO1FN 00005 00001 542,444 667.0 DL031104-002 FL1MI G01FN 00005 00002 40,304 49.6 DL031204-004 FL1MI GOtFN 00003 00001 559,588 688.1 DL031204-004 FL1MI G01FN 00003 00002 700,112 860.9 DL031204-004 FLIMI GOIFN 00004 00001 67,192 82.8 OL031204-004 FL1MI G01FN 00004 00002 41,628 51.2 CL030904-004 WL1C2 G01FN 00007 00002 109,432 134.8 DLo30904-004 WLIM1 G01FN 00007 00001 84,768 104.2 DL031104-002 WLIMI G01FN 00005 00001 17,220 21.2 OL031104-002 WL1M1 GO0FN 00005 00002 39,168 48.2 DL031204-004 WL1MI GOFN 00003 00001 248,288 305.3 DL031204-004 WL1M1 GO1FN 00003 00002 170,932 210.2 DL031204-004 WL1M1 GOIFN 0004 00001 17,664 21.7 DL031204-004 WLIMI GOIFN 00004 00002 95,960 118.0 CL030904-004 WU1C2 GO1FN 00007 00001 45,840 66.4 DL031104.002 WU1C2 GOFN 80005 0002 268616 32.7 DL031204-004 WU1C2 GO1FN 00003 00001 86,836 69.9 OL031204-004 WU1C2 G01FN 00003 0002 69,436 85.4 OL031204-004 WU1C2 GOIFN 0004 00001 13.372 16.4 OL031204-004 WU1C2 GOIFN 0004 00002 17,324 21.3 DL030904-004 WUlM1 G01FN 00007 00002 113,508 139.6 CL031104-002 WU1M1 GOIFN 00005 00001 14,848 18.3 1 Meter Survey Measurement Results by Download File, Surface/Material, Room/litem and SML Characterizatlon Survey Summary Report Page 1 of 2 MIJWVt Constructors 07-Dec-04 Plum Brook Reactor Decommissioning Project B-24 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-24 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA MEASUREMENT RESULTS SurveyPackageNumber: C1112 107C1 PackageType:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot Cells 1-7 Structural Surfaces OL030904-004 FL1M1 G02FN 00007 00001 97,860 120.3 dLm3o9q4-.04 FLIM1 G02FN 00007 00002 45,616 66.3 OL031104-002 FLIMI G02FN 00005 00001 24912 30.6 DL031104-002 FLIMI G02FN 00005 00002 28,160 34.8 OL031204-004 FLIM1 G02FN 00003 00001 98,400 121.0 DL031204-004 FL1M1 G02FN 00003 00002 163,012 200.4 DL031204-0G4 FLIM1 G02FN 00004 00001 18,876 23.0 DL031204-004 FL.M1 G02FN 00004 00002 19,004 23.4 DL030904-004 WLIC2 G02FN 00007 00002 55,496 68.2 DL030904-004 WLIM1 G02FN 00007 00001 62,320 76.6 DL031104-002 WLtM1 G02FN 00005 00001 14,096 17.3 DL031104-002 WL1M1 G02FN 00005 00002 29,056 35.7 0L031204-004 WL1MI G02FN 00003 00001 318,324 391.4 DL031204-004 WL1MI G02FN 00003 00002 133,712 164.4 DL031204-004 WL1M1 G02FN 00004 00001 16,284 20.0 0L031204-004 WL1MI G02FN 00004 00002 34,140 42.0 DL030904-004 WU1C2 G02FN 00007 00001 44,016 54.1 OL031104-002 WU1C2 G02FN 00005 00002 19.168 23.6 DL0312044004 WUlC2 G02FN ooD03 00001 76,980 94.7 OL031204-004 WU1C2 G02FN 00003 00002 91,372 112.4 DL031204-004 WU1C2 G02FN 00004 00001 15,788 19A DL031204-004 WU1C2 G02FN 00004 00002 13,458 16.5 D1.030904.004 WuI M G02FN 00007 00002 78,576 96.6 DL031104-002 WUlM1 G02FN 00005 00001 17,352 21.3 Download File, Instrument Summary and Survey Technician WonodI

-M3501w 51 SN t

0L031204-004 189094 44-10 PR196943 4.88aE10 BAO8661 OL031104-002 189094 44-10 PR196943 4.88E+10 BAD8661 oL030904-004 189094 44-10 PR196943 4.88E+10 SA57861 Thc Gamrma Cal Factor used to convertthe counts per minute into an exposure rate was obtained usingsa Cs-137 source.

Characterization Survey Summary Report Page 2 of 2 07-Dec-04 (Ma3'4H Constructor Plum Brook Reactor Decommissioning Project B-25 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-25 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONLNG Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS SurveyPackageNumber:

C1112 107C1 Package Type:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot Cclls 1-7 Struotural Surfaces

.Stiatist iSaral Sy a Activity A Activity a LLD 8 LLD (dpm/100cmn,)

(dpm/100c1i

(_dpm/100 cm)(dpmr/00 crnr )

Mean:

1.81 3.617.91 Mean LLD:

13.95 22.29 Median:

2.98 3,371.26 Minimum LLD:

13.95 22.29 Standard Deviation:

1.81 1,847.92 Maximum LLD:

13.95 22.29 Range:

3.51 5,720.38 Action Level:

0.00 0.00 Minimum:

-0.53 1,242.87 Test Peifor ed Maximum:

2.98 6,963.23 a

2: Numbr of Measuremnents1D-C--

Prescribed:

0 No. Collected 2 Prescribed Yes Yes Collected:

6 Max LLD 4 60% Action Level No No Measurements > Action Level Yes Yes Measurement Mean -Action Level Yes Yes No. Measurement > Action Level 4

6 Loose Surface Contamination Results by Sample File, Surface/Material, Roomlitem and SML Sainp etr Sce/

ttor p R-mdfA t

Mtreral tiont item-k.-

N10*(46J c)ill~

CS031004-008 FL1 L02 N/A WLI1411 2.98 13.95 3,346.76 22.29 CS031004-008 FLI L02 NIA WLIt4-2 2.98 13.95 3,431.70 22.29 CS031004-009 WL1 L02 NIA WUl-4-1 298 13.95 3,395.76 22.29 CS031004-009 WL1 L02 NIA WU1 4-2

0.53 13.95 8,963.23 22.29 CS031004-007 WU1 L01 NIA iL114-1

-0.53 13.95 1,242.87 22.29 CS031004-007 WUL Lot0 NIA FL1-4-2 2.98 13.95 3,327.16 2229 Characterization Survey Summary Report Page 1 of I NjMWH ConstrtuctOrs 07-Dec-04 Plum Brook Reactor Decommissioning Project

.B-26 Revision 0 December 16, 2004 Plum Brook ReactorDecommissioning Project B-26 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONIXG Sandusky, Ohio GAMMA SPECTRAL ANALYSIS RESULTS SurveyPackageNumber: C1112 107CI Package Type:

Structure Survey Area Name:

Hot Laboratory (l 112)

Survey Unit Name:

Hot Cells 1-7 Structural Surfaces Co-SO (pCUI)

Cs-137(pCQg}

UnityTest Mean:

7.232E+03 9.896E+04 Median:

3,232E.02 4.759E+03 273.51 Standard Deviation:

Range:

Minimum:

1.030E+02 2.173E+02 Maximum:

Co-so (pCi/g)

Cs-137 (pCi/g)

Mean MDC:

Minimum MDC:

Maximum MDC:

Action Level:

3.80 11 71 a S -t; i ^i -c,

?f umbsr of tMearentents - ;]1kro~~

Co-SO (pCl/g)

Cs-137 (pCi/g)

Prescribed:

a 0

Collected:

0 O

Positve Results:

0 0

_Co-SO (pCl)

Cs-137 (pCI1g)

Unity Test No. Collected l Prescribed Yes Yes Max MDC c 10% Action Level Yes Yes Measurements > Action Level No No No Measurement Mean > Action Level Yss Yes No No. Measurement>Action Level 1t 15 0

Gamma SPectral Analvsis Results bv Samole File. SurfacelMatefial, Roomltem and SML Sannpie-10 Sur

'ffriRtc t io' 7

7C>>F---ife7 Unity; Matria C~ i~

~ ~

T t

~M C DC,-M~ Test CS031004-002 WU1 L07 N/A NIA 1

1.030E+02 2.139E+01 1.7S9E+04 7.613E+01 CS031004-017 WU1 L07 N/A N/A I

2.139Ei01 2.173E+02 1.353E+01 CS031204-022 WU1 L07 N/A N/A I

4,434E+02 2.139E+01 1.556E+03 4.035E+01 9

CS031204-025 WU1 L07 N/A N/A 1

2.575E+02 2.139E*01 3.359E+03 3.807E+01 CS031004-016 WLI L07 N/A N/A 1

2139E+01 4.759E+03 3.807E+01 CharacterIzatlon Survey Summary Report Page 1 of 3 07-Dec-04 (aPW1NH Con~structo s Plum~~~~~~~~~~~~~~~~~~

Bro.eco eomsinn rjc

-7Rvso eebr1,20 Plum Brook Reactor Decommissioning Project B-27 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA SPECTRAL ANALYSIS RESULTS SurveyPackageNumber: C1112 107C1 PackageType:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot Cells 1-7 Structural Surfaces Gamma SPeotral Analysis Results by Sample File, SurfacelMaterlal, Roomlitem and SML Sam~e I Suface7D abi ty CS031104-002 WL1 L07 NIA NWA 1

6.307E+03 4.843E+01 7.634E+03 1.002E+021

=

CS031204-021 WL1 L07 N/A N/A 1

3.232E+02 2.139E+01 8.6762+02 2.669+61M M CS031204-024 WL1 L07 N/A NIA 1

1.886E402 2.139E+01 1.608E+03 3.055E+01 CS031704-011 WL1 L07 1

NIA 1

1.309E+04 B.974E+01 2.277E+05 2.864E+02 CS031004-001 FLI L07 NIA NIA 1

1.447E+02 2.139E+01 5.7062+03 3.563E+01M CS031004-015 FLI L07 N/A N/A 1

2.139E+01 2.819E+05 2.314E+02 8

CS031104-001 F1 L07 N/A NIA 1

2,223E+04 7.856E+01 9.353E+04 2.011E202J CS031204-020 FL1 L07 NIA NIA 1

2.139E201 1.709E+03 3.003E+01 0S031204-023 FLI L07 NIA N/A 1

1.040E+02 2.139E+01 3.410E+03 2.380E+01 0S031704-010 FLI L07 1

N/A 1

3.637E+04 1.140E+02 8.025E05 4.95512+02H

For smears counted by gamma spectral analysin (Sample Weigbt - I g) thc actual reporting units are Total Activity In pCI.

Legend -

Yellow - 0.9 to 9.9X AL Other Plant Derived Radionuclides Identified Sampie ID Nb-94 I Agtn Wm'IE~ie t T

.234 CiU 356 I A i Irmd43

-Cm-245 f CS031004-002 II CS031004-017

~

L CS031204-022 J j

l mo CS03I1204-025 CS031004-016 1 I

"oc-Characterization Survey Summary Report Page 2 of 3 07-Dec-04 (a

MWVH Constructors Plum Brook Reactor Decommissioning Project B-28 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-28 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA SPECTRAL ANALYSIS RESULTS Survey Package Number: Cl 112 107C1 Package Type:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot Cells 1-7 Structural Surfaces Other Plant Derived Radionucildes Identified Samplea D

I Nb9 tAgAO:m Eu-i rE Tg.T Lb235 Ain44ct Cm-94 cm-245 (ec,,

l-E...................

.F.

_.. D,g._. o......

CS031104-002 l

CS0312044021 CS031204.024

.L1__

CS031704-011 4.584E-02!

I 7.143E+02l YDC =

1.S30E+02 '

3.8 a95E+02l CS031004-001 I

I_

CS031004-015 j

CS031 104-01 I

CSO31 204-020I Mac C5031204-023 CS031704-010 1.340E 03 I

0 1.735E+03 c-

.92E+02 9.420E+02!

1 7299E402!

Characterization Survey Summary Report Page 3 of 3 07-Dec-04 (a

MWH Consiructor5 Plum Brook Reactor Decommissioning Project B-29 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-29 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACTLITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: C 1112 2OSCI Package Type:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot and Cold Lavatory

a Statstical Summary MeasuriemnitSnsit

'ty Mean:

11.834 Mean MDC:

492 Median:

1.556 Minimum MDC:

3'8 Standard Deviation:

19,804 Maximun MDC:

706 Range:

78,347 Action Level:

0 Minimum:

-113 aTeste PrFormi r md-:;--

Maximum:

78234 No. Collected 2 Prescribed Yes

-Numbr

'of Measurements Max MDC c 50% Action Level No Prescribed:

0 Measurements > Action Level Yes Collected:

37 Measurement Mean : Action Level Yes Reported:

37 No. Measurement > Action Level 35 Survey Measurement Results by Download File, Surface/Material, Roomiitem and SML Dow'nkoad l6 -: Surfacvi Dtectorf-it'r>;

i2, mmi¶t"'-

Grs;^e M

t

.<w M.'

- at~ri

'ount f tem'ho. -ALC'r =->Cfnt',a-.'mnt.

M Be> '-' ~Res~'.'

DL020404-001 CLIGI B02FS 00001 00001 1.00 395 12,200 10,469

-10,469 DL020504-003 CLIGI B02FS 00002 00001 1.00 469 1,820

-113 113 DL020404-001 FL1C3 B02FS 00001 00001 1.00 387 2,230 573

-573 OL020404-001 FLIC3 BO2FS 00001 00002 1.00 409 3,364 1,507

-1,507 DL020404-001 FL1C3 B02FS 00001 00003 1.00 395 2,053 322

-322 DL020504-003 FL1C3 B02FS 00002 00001 1.00 442 2,234 517

-517 DLC20904-001 FL1C3 8O2FS 00003 00001 1,00 471 3,617 1,556

-1,555 DL021704-001 FL1C3 BO2FS OO004 00001 1.00 555 34,303 31,022

-31,022 DL021704-001 FL1C3 B02FS 00004 00002 1.00 428 23.843 21,920

-21,920 DL021804-002 FL1C3 B02FS 00008 QOOQ1 1.00 557 40,023 37,107

-37,107 DL021804-002 FL1C3 BO2FS 00005 00002 1.00 528 10,276 7.564

-7,684 DL021804-002 FL1C3 SU2FS 00005 00003 1.00 530 11,720 9,084

-9,084 DL021804-002 FL1C3 302FS o0o0s OO004 1.00 523 6,551 3,995

-3,995 DL021804-002 FL1C3 BO2FS 00005 00005 1.00 506 7,322 4,930

-4,930 DL021804-002 FL1C3 B02FS 00005 00006 1.00 550 45,397 42,556

-42,556 DL021804-002 FL1C3 B02FS 00005 00007 1.00 507 30,416 28,014

-28,014 DL021804-002 FL1C3 B02FS 00005 00008 1.00 544 69,411 65,636

-66,636 DL021804-002 FLIC3 302FS 00008 00001 1.00 534 80,911 78,234

-78,234 DL021804-002 FL1C3 302FS 00006 00002 1.00 497 55,238 52,935

-52,935 DL020504-003 WL1G1 B02FS 00002 00001 1.00 432 12,777 11,144

-11,144 0L020504-003 WL1GI B02FS 00002 00002 1.00 463 10,189 8,300 4,300 DL021704-001 WL1Y1 B02FS 00004 00001 1.00 540 4,806 1,707

-1,707 DL021804-002 WLIY1 B02FS 00005 00001 1.00 706 8,037 3,299

-3,299 Characterization Survey Summary Report Page 1 of 3 07-Dec-04 (a MVH Constructors Plum Brook Reactor Decommissioning Project B-30 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-30 Revision a December I16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: Cl 12 205CI Package Type:

Stucture Survey Area Name:

Hot Laboratory (I 1 12)

Survey Unit Name:

Hot and Cold Lavatory Survey Measurement Results by Download File, Surface/Material, Roomiitem and SML OL020404-001 WU1GI BO2FS 00001 00002 1.00 353 1,507 110

-110 0L020504-003 WU1G1 B02FS 00002 00002 1.00 429 1,574

-39 39 OL020404-001 WU1Y1 B02FS 00001 00001 1.00 439 3,403 1,252

-1,252 DL020504-003 WUIYI 802FS 00002 00001 1.00 482 3,218 1,166

-1,166 DL020904-001 WUIYI B02FS 00003 00001 1.00 472 3,963 1,886

-1,888 DL021704-001 WU1Y1 302FS 00004 00001 1.00 499 3,849 1,206

-1,206 DL021704-001 WU1Y1 802FS 00004 00002 1.00 487 3,521 1,015

-1,015 DL021704-001 WU1YI B02FS 00004 00003 1.00 475 3,273 891

-891 OL021804-002 WU1Y1 302FS 00006 00001 1.00 620 4,752 1,117

-1,117 DL021904-004 WUIY1 a02FS 00005 00001 1.00 498 3,327 1,014

-1,014 DL021904-004 WU1Y1 302FS 00005 00002 1.00 573 4.061 977

-977 DL021904-004 WUlY1 BO2FS 00005 00003 1.00 516 3,864 1,359

-1,309 DL0219044004 WU1Y1 B02FS 00005 00004 1.00 480 3,411 1.266

-1.268 DL021904-004 WU1Y1 B02FS 00005 00005 1.00 498 3,556 1,238

-1,238 Download File, Average andlor Single Point (SP) Background Summary DL020t404001 CL1G1 802GS 00001 O0001 1.00 441 441 1,731 DL020504-003 CL1 G1 B02GS 00W02 W0001 1.00 393 393 1,934 DL020404-001 FL1C3 802GS 00001 O00t0 1.00 422 422 1,657 DL0204044001 FU1C3 B02GS 00001 00002 1.00 473 473 1,857 DL020404-001 FL1C3 802GS 00001 00003 1.00 441 441 1,731 DL020504-003 FL1 C3 B02GS 00002 O000t1 1.00 349 349 1,717 DOL20904-001 FL1C3 B02GS 00003 00001 1.00 44t 441 2,061 DL021704-001 FL1 C3 B02GS 00004 00,0t 1.00 792 792 3,281 DL021704-001 FLt C3 B02GS 00004 00002 1.00 464 464 1,922 DL021604-002 FL1 C3 802GS 0000S -00001 1.00 624 824 2,916 DL0218044002 F'L1C3 B02GS 00005 00002 1.00 559 559 2,612 D1-0211804-002 F1.C3 B02GS 00006 00003 1.00 564 564 2,636 DL0218044002 FL1 C3 B02GS 00005 00004 1.00 S47 547 2,558 DL021804 002 FL1C3 802GS 00005 W0005 1.00 512 512 2,393 DL0218044002 FL1C3 B02GS 00005 00006 1.00 E08 608 2,841 DL0218044002 FLtC3 BO2GS 00005 00007 1.00 514 514 2,402 OL0218044002 FLtC3 B02GS 00005 00008 t.00 594 594 2,776 Dbwk~d ~ ~ra~

~e~ctr~~i

~ IL 8kd kg 8~c Okg e_

Characterization Survey Summary Report Page 2 of 3 07-Dec.04 a

MtN.N Construrotor5 Plum Brook Reactor Decommissioning Project B-31 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-31 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: C112 205CI Package Type:

Structure Survey Area Name:

Hot Laboratory (I 1 12)

Survey Unit Name:

Hot and Cold Lavatory Download File, Average and/or Single Point (SP) Background Summary DL021804-002 FL1C3 B02GS 00006 00001 1.00 573 573 2,678 DLO21804-002 FL1C3 B02GS 00006 00002 1.00 493 493 2,304 DL020504-003 WL1G1 602G1 00002 00001 1.00 332 332 1,633 DLo20504-003 WL161 B02GS 00002 00002 1.00 384 384 1,889 0L021704-001 WL1Yi a02Gs 00004 00001 1.00 748 748 3,099 OL02180"40a2 WL1Y1 802GS 00005 00001 1.00 1,014 1,014 4,738 DL020404-001 WU1G1 802GS 00001 00002 1.00 355 356 1,397 DLo20504-003 WU1G1 802GS 00002 00002 1.00 328 328 1,614 DL020404-Go1 WU1Y1 B02GS 00001 00001 1.00 548 548 2,151 DLo20504-003 WUIYI B02GS 00002 00001 1.00 417 417 2,052 DL020904-001 WUIYI B02GS 00003 00001 1.00 444 444 2,075 DL021704-001 WU1Y1 B02GS 00004 00001 1.00 E38 638 2,643 0L021704-001 WUIY1 B02GS 00004 00002 1.00 808 605 2,506 DL021704-01 WU1Y1 802GS 00004 00003 1.00 575 575 2,382 DL021804-002 WU1Yl B02GS 00006 00001 1.00 778 778 3,636 oL021904-004 WU1 802GS 00005 00001 1.00 495 495 2,313 DLo21904-004 WUIYI B02GS 00005 00002 1.00 880 860 3,084 DL021904-004 WU1Y1 802GS 00005 00003 1.00 534 534 2,495 OL021904.004 WU1Y1 B02GS 00005 00004 1.00 459 459 2,145 0L02190"404 WU1Y1 B02GS 00005 00005 1.00 496 498 2,318 Download File, Instrument Summary and Survey Technician DL020404-001 180716 44-116 PR188386 125 0.2038 JPH5419 DLO20504-003 193707 44-118 PR203147 125 0.1628 JPW4121 DL020904-001 180718 44-118 PR187571 125 0.1712 JPH5419 DL021704-001 180739 44-118 PR188383 125 0.1931 BADs661 DL021804-002 180718 44-116 PR1s7571 125 0.1712 BA08661 DL021904-004 180718 44 -16 PR187571 125 0.1712 BAD8661 Characterization Survey Summary Report Page 3 of 3 07-Dec.04 MIWH Constructors Plum Brook Reactor Decommissioning Project

.B-32 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-32 PRevision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS Survey Package Number: C1112 205CI Package Type:

Structure Survey Area Name:

H-ot Laboratory (1112)

Survey Unit Name:

Hot and Cold Lavatory statitsica Summery

42.

MeasurementSentivty Mean:

41 Mean MDC:

41 Median:

37 Minimum MDC:

19 Standard Deviation:

33 Maximum MDC:

76 Range:

151 Action Level:

0 Minimum:

0

->s.TeatPerforne e

Maximum:

151 No. Collected a Prescribed Yea Number)of Measuroients Max MDC < 50% Action Level No Prescribed a

Measurements > Action Level Yes Collected 30 Measurement Mean > Action Level Yes Reported 30 No. Measurement > Action Level 28 Survey Measurement Results by Download File, Surface/Material, Rooml/tem and SML Sur~eI eteor1

~om r SL - <Sapje t~teau~~-

-Gros NtAfpha Teat DL020604-401 CL1G1 A03FS 00001 00001 1.00 76 25 0

0 DL020604-001 FL1C3 A03FS 00001 00002 1.00 19 12 12

12 DL021604-002 FLIC3 A03FS 00004 00001 2.00 41 28 12

-12 DLD21604-002 FLIC3 A03FS 00004 00002 2.00 29 25 18

-18 DL021704-D05 FLIC3 A03FS 00003 00001 2.00 34 28 19

-19 DL0219G4-003 FL1C3 A03FS 00005 00001 2.00 44 74 55

-55 DL021904-003 FL1C3 A03FS 00005 00002 2.00 47 22 0

0 DL021904-003 FL1C3 A03FS 00005 00003 2.00 44 55 37

-37 DL021904-003 FL1C3 A03FS 00005 00004 2.00 41 22 6

-6 DL021904-003 FLIC3 A03FS 00005 00005 2.00 50 132 108

-108 DL021904-003 FLIC3 A03FS 00005 00006 2.00 52 74 46

-46 DL02194003 FL1C3 A03FS 00005 00007 2.00 34 15 a

46 DL021904-003 FLIC3 AO3FS 00005 00008 2.00 38 163 151

-151 DL021904-003 FLIC3 A03FS 00006 00001 2.00 38 34 22

-22 DL021904-003 FL1C3 A03FS 00006 00002 2.00 29 37 31

-31 DL020S04-001 WL1G1 A03FS 00002 00001 1.00 47 56 50

-SD DL020504-001 WL1G1 A03FS 0002 00002 1.00 47 25 19

-19 DL021704-005 WL1Y1 A03FS D004 00001 2.00 30 40 34

-34 DL021904-003 WL1Y1 A03FS 00005 00001 2.00 47 74 52

-52 DL020504-001 WU1Y1 A03FS 00001 0001 1.00 69 43 25

-25 DL020604-001 WU1Yt A03FS 00002 00001 1.00 19 62 62

-62 DL021704-005 WU1Y1 A03FS 00003 00001 2.00 34 37 28

-28 DL021704-005 WU1Y1 A03FS 00004 00001 2.00 30 84 78

-78 Characterization Survey Summary Report Page 1 of 3 07-Dec.04 (9

MWVH Constructors Plum Brook Reactor Decommissioning Project B-33 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-33 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECONMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS Survey Package Number: Cl 112 205C1 Package Type:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot and Cold Lavatory Survey Measurement Results by Download File, Surface/Material, RoomlItem and SML Download ID

§aicIS etcr F Rcuo-or~zple. :

eau -G viNeAlpha C'

~ ~~~r~t Ie~io ~8}~~ ~crut~ mnt~~ Aph~

Result

(.atLevel.-

OL021704-005 WU1Y1 A03FS 00004 00002 2.00 24 53 50

-50 DL021904-003 WUIY1 A03FS 00005 00001 2.00 50 49 25

-25 DL021904-003 WUIYI A03FS 00005 00002 2.00 50 95 71

-71 DL021904-03 WU1Y1 A03FS 00005 00003 2.00 44 55 37

-37 DL021904-003 WUlYl A03FS 00005 00004 2.00 44 59 40

-40 DL021904-003 WU1Y1 A03FS 00005 00005 2.00 29 74 68

-68 DL021904-003 WU1Y1 A03FS 0000o 00001 2.00 34 71 62

-42 Download File, Average and/or Single Point (SP) Background Summary DL020604-001 F1C3 A03GS 00001 00002 1.00 0

0 0

DL021604-002 FL1C3 A03GS 00004 00001 2.00 5

3 15 DL021604-002 FL1C3 A03GS 00004 00002 2.00 2

1 3

DL02t704-005 FL1C3 A03GS 00003 00001 2.00 3

2 9

DL021904-003 FLIC3 A03GS 00005 00001 2.00 6

3 18 DL020904-003 FLtC3 A03GS 00005 00002 2.00 7

4 22 DL021904-003 FL1C3 A03GS 00008 00003 2.00 6

3 18 DL021904-003 FLtC3 A03GS 00005 00004 2.00 5

3 1S DL021904-03 0

FLtC3 A03GS 00006 00005 2.00 8

4 25 DL021904-003 FL1C3 A03GS 00005 00006 2.00 9

5 28 DL021904-003 FLtC3 A03GS 00005 00007 2.00 3

2 9

DL021904-003 FLtC3 A03GS 00005 00008 2.00 4

2 12 DL021904-003 FL1C3 A03GS 00006 00001 2.00 4

2 i2 DL021904-003 FLtC3 A03GS 00006 00002 2.00 2

4 5

DL020804-001 WL1G1 A03GS 00002 00001 1.00 1

1 8

DL020804-001 WLIG1 A03GS 00002 00002 1.00 1

1 6

DL021704-005 WL1Y'1 A03GS 00004 00001 2.00 4

2 1

2 DL021904-003 WUY1 A03GS 00005 00001 2.00 7

4 22 DL020804-001 WU1Y1 A03GS 00001 00001 1.00 3

3 19 DL020604-001 WUlY1 A03GS 00002 00001 1.00 0

0 0

D01021704-005 WU1Y1 A03GS 00003 00001 2.00 3

2 9

DL021704-005 WUIYI A03GS 00004 00001 2.00 2

2 8

DL021704-005 WU1Y1 A03GS 00004 00002 2.00 2

1 3

OL02704005 WU1Y A0GS 000 0002 200 1

Characterization Survey Summary Report Page 2 of 3 07-Dec-04 6

MWH Construitors Plum Brook Reactor Decommissioning Project B-34 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-34 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS Survey Package Number: C1112 205C1 Package Type:

Structure Survey Area Name:

Hot Laboratory (I 112)

Survey Unit Name:

Hot and Cold Lavatory Download File, Average andlor Single Point (SP) Background Summary Mbnbd D

Sracel qee&

o t

kd Bg Bd lh lam 'io -'~51 CoiDntfne Couts Con t

ct

= ;'o~

DL021904-003 WU1Y1 A03GS 00005 00001 2.00 8

4 25 DL021904-003 WUIY1 A03GS 00005 00002 2.00 8

4 25 DL021904-003 WUiY1 A03GS 00005 00003 2.00 6

3 18 DL0219044003 WU1Y1 A03GS 00005 00004 2.00 B

3 1S 0L021904-003 WU1Y1 A03GS 00005 00005 2.00 2

1 6

DL021904-003 WU1Y1 A03GS 00006 00001 2.00 3

2 9

Download File, Instrument Summaryand SurveyTechnician DL020604-001 189094 43-90 PR203395 125 0.1289 JWT5700 OL021604-002 180715 43-40 PR1SB389 125 0.1299 aA08661 DL021704-00S 189094 43-0 PR203395 125 0.1289 BAD8661 DL021904-003 180715 43-90 PR1S8389 125 0.1299 BAD8661 Characterizatlon Survey Summary Report Page 3 of 3 07-Dec.04 (aMU'H Con~structors Plum Brook Reactor Decommissioning Project B-3S Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-35 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA MEASUREMENT RESULTS Survey Package Number: C1112 205C1 Package Type:

Structure Survey Area Name:

Hot Laboratory ( 1112)

Survey Unit Name:

Hot and Cold Lavatory v=.S,,,ifca.IS.umar (c'nhct)

-ds'cl'Sumrn ijr~,

meterS pdhr erOW Mean:

Median:

Standard Deviation:

Range:

Minimum:

Maximum:

1622 Mean:

16.11 Median:

4.12 Standard Deviation:

12.89 Range:

9.90 Minimum:

22.59 Maximum:

18.67 20.94 6A1 22.56 B.S1 31.37 Contact Survey Measurement Results by Download File, SurfacelMaterial, Roomiltem and SML DL022404-001 CLOGW GO1FN 00001 00001 12,484 116 DL022404-001 FLIC3 G01FN 00004 00001 22,564 21.4 OL022404-001 FLIC3 GOIFN 00004 00002 14,020 13.3 OL022404-001 FLIC3 GOIFN O0005 00001 23,844 22.6 OL022404-001 FLIC3 GOIFN 00005 00002 17,492 16.6 0L022404-001 FL1C3 GOIFN 00005 00003 15,644 14.7 DL022404-001 FL1C3 GOIFN 00005 00006 20,852 19.8 DL022404-001 FL1C3 GOIFN 00005 00007 17,004 16.1 DL022404-001 FL1C3 G01FN 00005 00008 19,796 18.8 DL022404-001 FL1C3 G01FN 00006 00001 20,862 19.8 DLO22404-001 FLIC3 GOIFN 00006 00002 18,760 15.9 DL022404-001 WL1G1 GOIFN 00002 00001 10,916 10.3 DL022404-001 WL1G1 GOIFN 00002 00002 10,446 9.9 1 Meter Survey Measurement Results by Download File, SurfacolMaterlal, Roomlitem and SML 4Qovrnoa

,'S 9

E

<cpoa DL022404-001 CL1G1 G02FN 00001 00001 9,300 66s DL022404-001 FI1C3 G02FN 00004 00001 22,736 21.5 DL022404-001 FL1C3 Go2FN 00004 00002 15,866 14.8 DL022404-001 FL1C3 G02FN 00005 00001 23,376 22.1 DLo22404-001 FL1C3 G02FN 00005 00002 23,176 22.0 DL022404-001 FL1C3 G02FN 00005 00003 22,552 21.4 DL022404-001 FL1C8 G02FN 00005 00006 22108 20.9 DL022404-001 FL1C3 Go2FN 00005 00007 1B,424 17.5 DL022404-001 FL1C3 G02FN 00005 00008 16,492 15.6 DL022404-001 FL1C3 G02FN 00006 00001 33,116 31.4 Characterization Survey Summary Report Page I of 2 07.Dec-04 I

MWH Constructors Plum Brook Reactor Decommissioning Project B-36 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-36 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA MEASUREMENT RESULTS Survey Package Number: Cl 112 205C1 Package Type:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot and Cold Lavatory DLo22404-001 FL1C3 G02FN 00006 00002 26,495 25.1 DLo22404-001 WL1G1 G02FN 00002 00001 11,324 10.7 DL022404-001 WL1G1 G02FN 00002 00002 11,408 10.8 Download File, Instrument Summary and Survey Technician

6tcto M8I S DL022404-001 180716 44-10 PR188337 6.33E+10 BAD6661

The Gamma Cal Fattor used to convert the counts per minute Into an exposure rate was obtained using a Cs-137 source.

Characterization Survey Summary Report Page 2 of 2 07-Dec04 (a

M1iVH Cons;t.urctors Plum Brook Reactor Decommissioning Project B-37 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-37 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS Survey Package Number: C1112 205C1 Package Type:

Structure Survey Area Name:

Hot Laboratory (I 1 12)

Survey Unit Name:

Hot and Cold Lavatory u

Statisical Summary>

1' ~

rea entaitftyi Mean:

Median:

Standard Deviation:

Range:

Minimum:

3 ACUVIty 3 ACUMvy (dpM/100 cm-)

1-pm/

cn-)

0.38 149.01

-0.46 13.85 1.53 434.99 3.60 2.499.18

-0.51

-5.75 a LLU J$ LLD (dpmJ100cmi)

(dpm/100crnm)

Mean LLD:

13.73 22.59 Minimum LLD:

13.43 21.55 Maximum LLD:

13.90 23.14 Action Level:

0.00 0.00 S;S --,--

Tesat ierformed

- z-

.- 5=-

Maximum:

3.09 2,493.43 a

-N' Nmberctl~easuremefs:

Prescribed:

0 No. Collected 2 Prescribed Yes Yes Coilected:

37 Max LLD c 50% Action Level No No Measurements > Action Level Yeas Yes Measurement Mean > Action Level Yes Yes No. Measurement > Action Level 9

31 Loose Surface Contaminatlon Results by Sample File, SurfacelMaterial, Room/item and SML CS020804-004 CLt L01 N/A 11

-0.41 13.43

-1t38 21.70 CS020604-004 CLI L01 NtA 4

-0.41 13.43 47.52 21.70 CS020304-003 FLI L01 NIA 1

-0.41 13.43 5.15 21.70 CS020504-003 FL1 L01 N/A 2

3.09 13.43 537.66 21.70 CS020504-003 FL1 L01 N/A 3

-0.41 13.43 24.75 21.70 0S020504-003 FLt L01 N/A 7

-0.41 13.43 1.88 21.70 CS021704002 FLt LOt N/A t

-0.45 13.64 18.33 21.55 CS022404-003 FL1 LOi N/A 1

-0.51 13.90 20.39 23.14 CS022404-003 FL1 Lai N/A 10

-0.51 13.90 79.19 23.14 CS022404-003 FLI L01 N/A 11 2.99 13.90 30.19 23.14 CS022404-003 FLt L01 N/A 12

-0.51 13.90 39.99 23.14 CS022404-003 FLI L01 N/A 13 2.99 13.90 415.68 23.14 CS022404-003 FL1 L01 N/A 14

-0.51 13.90 298.07 23.14 Characterization Survey Summary Report Page 1 ot2 07-Dec-04

(

MWHI Constructors Plum Brook Reactor Decommissioning Project B-38 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-38 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACIILITY DECOMMISSIONING Saadusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS Survey Package Number: C1112 205CI Package Type:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot and Cold Lavatory CS022404-003 FL1 LD1 NIA 2

-0.51 13.90 10.58 23.14 CS022404-003 FL1 L01 N/A 21

-0.51 13.90 102.06 23.14 0S022404-003 FL1 L01 N/A 22 2.99 13.90 219.57 23.14 CS022404-003 FL1 L01 N/A 7

-0.51 13.90 2,493.43 23.14 CS022404-003 FL1 L01 N/A 8

-0.51 13.90 869.78 23.14 CS022404-003 FL1 L01 NIA 9

-0.51 13.90 180.46 23.14 CS020604-006 WL1 L01 NiA a

-0.41 13.43 1.88 21.70 CS020604-006 WL1 L01 NIA 9

-0.41 13.43 1.88 21.70 CS022404-004 WL1 L01 NWA 15 2.99 13.90

-2.48 23.14 CS022404-004 WL1 L01 N/A 3

-0.51 13.90

-5.75 23.14 CS020604-005 WU1 L01 N/A 10 3.09 13.43 14.95 21.70 CS020604-005 WUt L01 N/A 12 3.09 13.43 1.88 21.70 CS020804-005 WUt L01 N/A 5

-0.41 13.43 1.88 21.70 CS020804-005 WU1 L01 N/A 6

-0.41 13A3 5.15 21.70 C8021704-003 WU1 L01 3

1 3.05 13.64

-1.27 21.55 CS022404-005 WU1 L01 NIA 18

-0.51 13.90 13.88 23.14 CS022404-005 WU1 L01 N/A 17

-0.51 13.90 10.58 23.14 CS022404-005 WU1 L01 NIA 1t

-0.51 13.90 4.05 23.14 0C022404-005 WU1 L01 N/A 19

-0.51 13.90 0.78 23.14 C8022404-005 WU1 LC1 NIA 20

-0.51 13.90

-5.75 23.14 CS022404-005 WU1 L01 NIA 23 2.99 13.90 0.78 23.14 CS022404-005 WU1 L01 NIA 4

-0.51 13.90 13.85 23.14 CS022404-005 WU1 L01 N/A 6

-0.51 13.90

-2.48 23.14 CS022404-005 WU1 L01 NIA a

-0.51 13.90 86.12 23.14 Characterizatlon Survey Summary Report Page 2 of 2 07-Dec-04

(

MWH Construrtors Plum Brook Reactor Decommissioning Project

.B-39 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-39 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA SPECTRAL ANALYSIS RESULTS Survey Package Number: C1112 205CI Package Type:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey UTnit Name:

Hot and Cold Lavatory t~~~~--.

utiauai Sumrnary 9

,-*sg^.,-A.<

,59.

CO-60BpClg)

Cs-137 (pClg)

Unity Test Mean:

NIA 2.962E+01 Median:

NWA 2.962E201 6.32 Standard Deviation:

NIA Range:

N/A Minimum:

N/A 2.962E+01 Maximum:

NWA

.$.>. ?,-.,

.v.;:'<'.

t:.-

tme M

llSrnsitivitfty

<xz>sR2s,.>t Co-60 (OCV01 CS-137 oUlfot)

Mean MDC:

Minimum MDC:

Maximum MDC:

Action Level:

3.80 11,71 Co-60 (pCl/g)

Cs-137 (pCig_

Prescribed:

0 0

Collected:

a 0

Positva Results:

0 0

Co-so (pCig)

Cs-137 (pCl/g)

_nTest No. Collected l Prescribed Yes Yes Max MDC - 10% Action Level Yes Yes Measurements > Action Level No No No Measurement Mean > Action Level NiA Yes No No. Measurement > Action Level 0

1 0

Gamma Spectral AnalYsis Results bv Samole File. Surface/Material. Roomlntem and SML 0 R.y Sample~~M ITSr-eItco/

'--r s3 s13 U~

CS030104-01i FLI L07 N/A N/A 1

2.139E+01 2.962E+01 1.857E+01

-For imears counted by gamma spectral analyNIs (Sam1le Welgt-I it) the actual reporting units are Tolt Activity in pCi.

Legend.

Yellow - 0.9 to 9.9X AL Characterization Survey Summary Report Page 1 of 2 07-Dec.04 (aPWH Cntutr Plum Brook Reactor Decommissioning Project B-40 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-40 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA SPECTRAL ANALYSIS RESULTS SurveyPackageNumber: C1112205CI Package Type:

Structure Sarvey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot and Cold Lavatory a

11ay Other Plant Derived Radlonuclides Identified CS030104-003 l

A d oI I

I__!

Characterization Survey Summary Report Page 2 of 2 07'Dec-04 (aMWH Constructor-s Plum Brook Reactor Decommissioning Project B-41 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: Cl 112 301C1 Package Type:

Stucture Survey Area Name:

Hot Laboratory ( 1 112)

Survey Unit Name:

Hot Lab Roof& Exterior Walls

S. -;tStatistriealSummary Messuremen tiensvit

-- 1.....

.d.;-. lOsi~ecm Mean:

360 Mean MDC:

397 Median:

378 Minimum MOC:

323 Standard Deviation:

265 Maximum MDC:

514 Range:

929 ActIon Level:

0 Minimum:

-13 Test Peformed Maximum:

917 No. Collected > Prescribed Yes Numiber of Measurermnt '1_.

Max MDC < 50% Action Level No Prescribed:

0 Measurements > Action Level Yes Collected:

14 Measurement Mean > Action Level Yes Reported:

14 No. Measurement> Action Level 13 Survey Measurement Results by Download File, Surface/Material, Room/Item and SML

,~.,

(L03 rye (lCS)'at$

2,DC-f.

Reault-DL041025-005 8E1C2 B02FS 00002 00001 1.00 411 1,918 556

-556 0L041025-005 8E1C2 802FS 00004 00001 1.00 492 2,893 917

-917 DL041025-005 3E1C2 B02FS 00005 00001 1.00 403 1,801 498

-498 DL041025-005 BE1C2 B02FS 00007 00001 1.00 403 2,003 699

-699 OL041025-005 BE1C2 B02FS 00008 00001 1.00 422 1,934 493

-493 DL041025-005 BE102 B02FS 00009 00001 1.00 408 1,764 424

-424 DL041025-005 BE1C2 B02PS 00009 00W02 1.00 413 1,653 275

-275 DL0410254005 3E1M1 302FS 00003 00001 1.00 514 2,336 175

-175 DL041026-007 RF1C1 B02FS 00008 00001 1.00 337 1,558 405

-405 DL041026-007 RF1C1 B02FS 00008 00002 1.00 352 1,808 350

.350 DL04102S-007 RF1G1 302PS 00006 00W03 1.00 369 1.488 97

-97 0L041026-007 RF1G1 B02FS 00006 00004 1.00 375 1,490 51

-51 DL041026-007 RF1Gt 302FS 00006 00005 1.00 323 1.165 114

-114 DL041026-007 RF1G1 B02FS 00006 00006 1.00 331 1,098

-13 13 Download File, Average andhor Single Point (SP) Background Summary DoWnload ID

&fk g

gdgd Beta OL041025-005 BE1C2 B02GS 00002 00001 1.00 257 257 1,362 DL0410254-05 BE1C2 802GS 00004 00001 1.00 373 373 1,976 DL041025-005 BE1C2 802GS 00005 00001 1.00 248 246 1,303 0L041025-005 BE1C2 B02GS 00007 00001 1.00 246 248 1,303 Characterization Survey Summary Report Page I of 2

(

MWH Constructors 03-Dec044 Plum Brook Reactor Decommissioning Project B-42 Revision 0 December 16, 2004 Plum Brookc Reactor Decommissioning Project B-42 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: Cl 112 301CI Package Type:

Structur Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot Lab Roof & Exterior Walls Download File, Average and/or Single Point (SP) Background Summary DL041025-005 BE1C2 B02GS 00008 00001 1.00 272 272 1,441 DL041025-005 BEtC2 302GS 00009 00001 1.00 253 253 1,340 DL041025-005 BEtC2 B02GS 00009 00002 1.00 260 260 1,377 DLD4102S405 3E1M1 B02GS 00003 00001 1.00 408 408 2,182 DL041026-007 RF1C1 B02GS 00008 00001 1.00 273 273 1,153 DL041028-007 RF1C1 B02GS 00008 00002 1.00 298 298 1,258 DL041026-007 RF1G1 B02GS 00008 00003 1.00 329 329 1,389 DL041026-007 RF1G1 802GS 00006 00004 1.00 341 341 1,440 DL041028-007 RF1G1 B02GS 00008 00008 1.00 249 249 1,051 DL041026-007 RFIG1 802GS 00006 00006 1.00 263 283 1,110 QC Survey Measurement Results by Download File, SurfacelMaterial, Room/item and SML OowriloadEl: ~su r Q&iaotect&n/-R zSLT ansr&ea9siire'@

Gr--- Ne8tai ft-

,ielCun'letw

&8.Cutnen, a

RMIit (ActLewl1 DL041025406 BEIC2 802QS 00007 00001 1.00 318 1,554 536

-536 0L041026M005 RF1G1 B020S 00006 00005 1.00 342 1,281 102

-102 0L041028"05 RF1G1 B020S 00008 00008 1.00 381 1,472 157

-157 QC Download File, Average and/or Single Point (SP) Background Summary DL041025-006 BEIC2 802PS 00007 00001 1.O0 241 24f 1,017 DL041026-005 RF1G1 302PS 00006 00005 1.00 277 277 1,179 DL041026-005 RF1G1 B02PS 00008 00006 1.00 309 309 1,315 Download File, Instrument Summary and Survey TechnicIan DL041025.005 180718 44-116 PR187571 125 0.151 PAM7843 DL041025-005 192608 44-116 PR197314 125 0.1895 RDF6510 DL041026-005 189094 44-116 PR197312 125 0.188 JGS8492 DL041026-007 192608 44-116 PR197314 125 0.1895 PAM7843 Characterization Survey Summary Report Page 2 of 2 03-Dec-04 (a MVWH Consoructors Plum Brook Reactor Decommissioning Project B-43 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-43 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECONMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS Survey Package Number: Cl 112 301C1 Package Type:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot Lab Roof & Exterior Walls

'ttist cal Summiar

-Y$

Measuremet Senitlvfty;:'

a Activity 3 Activity a LLD 3 LLD (dpm/100 cmi) (dpm100 orn)

(dprn/10 cm')

(dpm/100 cmrn Mean:

0.19 12.55 Mean LLD:

11.99 16.15 Median:

-0.21 1116 Minimum LLD:

1199 16.15 Standard Deviation:

1.12 9.11 Maximum LLD:

11.99 16.15 Range:

3.36 35.14 Action Level:

0.00 0.00 Minimum:

-0.21 158 TestPerFormid Maximum:

3.17 3872 a

3 Number of Measurements Prescribed:

0 No. Collected 2 Prescribed Yes Yes Collected:

17 Max LLD ' 50% Action Level No No Measurements ;-Action Level Yes Yes Measurement Mean > Action Level Yes Yes No, Measurement> Action Level 2

17 Loose Surface Contamination Results by Sample File, Surface/Material, Roomlitem and SML Sample

', Suri/ao iketeri Room'e'r SM c

,1 LLb

,'~Ativi -

LL' M--uaE ttatral &ount iewnN&

(L' (dpmtOO ci-t ri~) (pm/100 cml')(dprn'm 0 cm2) (dprni~OO cm')

I,-'t thiN.

11-03)~

yo (L.C5) ~

CS0410274002 8E1 L01 N/A BE12-1 40.21 11.99 11.16 1615 C8041027-002 BE1 Lol N/A BE1-341 3.17 11.99 7.97 1615 CS041027-002 8E1 L01 NMA BE1-4-1 0.21 11.99 4.77 16.15 CS041027-002 BEI L01 N/A BE15.1

-0.21 11.99 4.77 16.15 CS041027-002 021 L01 N/A 3El-7-1

.0.21 11.99 1.58 16.15 CS041027-002 BE1 Lo1 N/A 3E1-7-1 CC

-0.21 11.99 7.97 16.15 CS041027-002 BE1 L01 NiA 821-81

-0.21 11.99 14,3S 16.15 CS041027-002 BE1 L01 NIA BE1-9-1

-0.21 11.99 36.72 16.15 CS041027-002 BE1 L01 N/A BE1-9-2

-0.21 11.99 23.94 16.15 CS041027-009 RF1 L01 6

RFI-6-1

-0.21 11.99 20.75 16.15 CS041027-009 RF1 L01 6

RF1-42

-0.21 11.99 11.16 1B.15 CS0410274009 RF1 L01 6

RFI-6-3

-0.21 11.99 7.97 16.15 CS041027-009 RF1 L01 6

RFI-6-4 3.17 11.99 7.97 16.15 CharacterizatIon Survey Summary Report Page I of2 MW)-W Constru2otos 03-Oec(C4 Plum Brook Reactor Decommissioning Project B-44 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-44 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS Survey Package Number: C1112 301C1 Package Type:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot Lab Roof & Exterior Walls CS041027-009 RF1 L01 6

RFI644

-0.21 11.99 11.16 16.15 C8041027-009 RF1 L01 a

RFt4-6

-0.21 11.99 17.55 16.15 CS041027-009 RF1 L01 6

RF1-6-8QC

-0.21 11.99 23.94 16.15 CS041027-009 RF1 L01 6

RF65-8-QC

-0.21 11.99 4.77 16.15 CharacterIzation Survey Summary Report Page 2 of 2 03-Dec-04 MVIWH Constructors Plum Brook Reactor Decommissioning Project

.8-45 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-45 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILlTY DECOMMISSIONING Sandusk-y, Ohio GAMMA SPECTRAL ANALYSIS RESULTS Survey Package Number: C1 112 301CI Package Type:

Structure Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

HIot Lab Roof & Exterior Walls Co480 (PCilg)

Cs-137 (PMig)

Unity Test Mean:

NIA 2.705E-01 0.13 Median:

MIA 2.705E-41 0.07 Standard Deviation:

NIA 1.572E-O1 0.14 Range:

N/A 2.527E-0t 0.29 Minimum:

N/A 2.483E-01 0.05 Maximum:

N/A 2.927E-01 0.33 eE-e'>aSHS A;N._.

netnfenivt'- -.-.-,l!

Co-60 (iCU)a C--137 flCI/g)

Mean MDC:

4.831E-01 3.985E-01 Minimum MDC:

1.397E-01 1.534E-01 Maximum MDC:

1.295E+00 9.269E-01 Action Leval:

3.80 11.71 NU o f44 Measurements

~~~Co460 (pCwg)

C-3 Prescribed:

0 0

Collected:

4 4

Positve Results:

0 2

Co-40 (pCg)

Cs-37 (pCi/g)

Unity Teast No. Collected a Prescribed Yes Yes Max MDC < 10% Action Level Yea Yes Measurements > Action Level No No No Measurement Mean > Action Level NUA No No No. Measurement > Action Level 0

a O

Gamma Soectral Analvsis Results bv Samole File. SurfacejMaterlal, Room/item and SML CS041027-005 RF1 L11 6

1 10.1 1.295E+00 9.289E-01 CS041027-006 RF1 L1t 6

2 61.4 2.130E-01 2.483E-01 1.700E-0 t

CS041027-007 RF1 LII a

3 45.9 2.849E-01 1.43SE-01 CS041027-008 RF1 L11 6

4 93.6 1.397E-01 2.927E-01 1.534E-01 M Characterization Survey Summary Report Page 1 of 2 07-Dec-04

(

MW1H Constructors Plum Brook Reactor Decommissioning Project B-46 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-46 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA SPECTRAL ANALYSIS RESULTS SurveyPackageNumber: C1112301CI Package Type:

Stucture Survey Area Name:

Hot Laboratory (1112)

Survey Unit Name:

Hot Lab Roof & Exterior Walls

-For smears counted by gamma spectral analysl (Sample Weight = I g) thu actual reporting units are Total Activlty in pCi.

Legend -

Yellow -0.9to9.9XAL Other Plant Derived Radionuclides Identified iSample jD Nb-b41 Ag-O~im :L E152- :.,~

Tt.................

U..

2-235

- Axpiii-C-4i3 1Cm:2iS (pCJ/tg) hg IPU9 Ch/j)4 (plI)

(P9~)

I(tiC~g) I (p~tIg)

(PXl~

(pi~

(p9~

t,_f~

.i CS0410274005 I

HDCw 050O41027-006I_

CS041027-007 CS041027-008 l

"nC-Characterization Survey Summary Report Page 2 of 2 07-Dec-04 (a

MWH Constructors Plum Brook Reactor Decommissioning Project 8-47 Revision 0 December 16, 2004 Plum Brookc Reactor Decommissioning Project B-47 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: D1 131 405CI Package Type:

Structure Survey Area Name:

Reactor Service Equipment Building (1131)

Survey Unit Name:

Exterior Walls and Roof taitical Summa~r'y M su nntSiltlt Mean:

487 Mean MDC:

450 Median:

499 Minimum MDC:

404 Standard Deviation:

199 MaxImum MDC:

493 Range:

615 Action Level:

0 Minimum:

84 Test PerfoIrnme Maximum:

699 No. Collected 2 Prescribed Yes

,Number of Mea ureen Max MDC < 50% Action Level No Prescribed:

0 Measurements > Action Level Yes Collected:

8 Measurement Mean -Action Level Yes Reported:

8 No. Measurement > Action Level 8

Survey Measurement Results by Download File, Surface/Material, Roomiltem and SML wnloi&ID SurfaWe/W elactorf Roortro te',

Material Caount Item i N

t' Cout '

nt a i Result

('ActLevel DLOS13044002 BE1C2 Bo2FS 00003 00001 1.00 443 2,376

354

-854 DLOS13044002 BE1C32 B02FS 00004 00001 1.00 493 2,681 531

-531 DL051304402 RFtG1 802FS 0000 0001 1.00 404 2121 699

-699 OL051304-002 RF1G1 802FS 00006 00002 1.00 450 1.948 84

-84 OL051304-002 RF1G1 B02FS 00008 00003 1.00 443 20682 300

-300 DL051304-002 RFIG1 802FS 00006 00004 1.00 455 2,251 438

-438 DL051304-002 RF1G1 802FS 00008 00005 1.00 462 2,435 561

-561 DL051304-002 RF1G1 B02FS 00008 00008 1.00 438 2,150 467

-467 Download File, Average andlor Single Point (SP) Background Summary Download ID S'urfa/

13etect&r/ Roon

.W~

>> k

.iiqd

. Bkved kg

' <8ikdg'ta-.'

DL051304-002 BE1C2 802GS 00003 00001 1.00 350 350 1,722 DL051304-002 BE1C2 802GS 00004 00001 1.00 437 437 2,180 DL051304-002 RFIGi Bo2GS 00006 00001 1.00 289 289 1,422 DL051304-002 RFIGI 802GS OO008 00002 1.00 379 379 1,85S DL051304-002 RFIG1 802GS 00006 00003 1.00 358 358 1,751 DL051304-002 RF1G1 B02GS 00008 00004 1.00 370 370 1,820 DL051304-002 RF1G1 802GS 00006 00005 1.00 381 381 1.875 DL051304-002 RF1G1 802GS 00008 00008 1.00 342 342 1.683 Characterization Survey Summary Reporl Page 1 of 2 03-Dec-04 N

rVIWH Constructors Plum Brook Reactor Decommissioning Project

.B-48 Revision 0 December 16, 2004 Pluxm Brook Reactor Decommissioning Project B-48 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: DI 131 405CI Package Type:

Structure Survey Area Name:

Reactor Service Equipment Building (113 1)

Survey Unit Name:

Exterior Walls and Roof Download File, Instrument Summary and Survey Technician 0L051304-c02 193707 44-11 PR203147 i25 0.1626 SLM2556 Characterization Survey Summary Report Page 2 of 2 03-0ec-04 (a

MWH Constructors Plum Brook Reactor Decommissioning Project B-49 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-49 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS Survey Package Number: D1131 40SCI Package Type:

Structure Survey Area Name:

Reactor Service Equipment Building (113 1)

Survey Unit Name:

Exterior Walls and Roof

' StastklSunrnary

'as'uhrne tSensiffvity' '

0,:

Mean:

160 Mean MDC:

35 Median:

169 Minimum MDC:

9 Standard Deviation:

91 Maximum MDC:

50 Range:

279 Action Level:

0 Minimum:

40 T.'

2 est Performed Maximum:

320 No. Collected 2 Prescribed Yes Number of Measurements Max MDC < 50% Action Level No Prescribed 0

Measurements > Action Level Yes Collected 8

Measurement Mean > Action Level Yes Reported 8

No. Measurement > Action Level 8

Survey Measurement Results by Download File, Surface/Material, Room/item and SML Do'wnlor ID' S'drfscel Oetecfo/i'Rcr wMLA s~mp~e. -

iesure-

'G p

i~

T:-te

...9M-.>R-bteisii Count ltenQ~

No. -tL~l'.'.&nt6--enta:~ Aiphe^>Result (ActLevel -

,~

(l.31 ype

~

~flr~

~Result`)

(L0C4), <.':

W t>O~(i¶Of)I~VOO DL051304-001 BE1C2 A03FS 00003 00001 2.00 38 53 40

-40 DL051304-001 BE1C2 A03FS 00004 00001 2.00 30 186 180

-180 0L051304-001 RF1Gt A03FS 00006 00001 2.00 50 242 217

-217 DL061304-001 RF1G1 A03FS 00006 0002 2.00 30 56 s0

-50 DL051304-001 RF1G1 A03FS 00006 00003 2.00 48 180 158

-158 DL051304-001 RF1G1 A03FS 00006 00004 2.00 38 133 121

-121 DL051304-001 RF1G1 A03FS 00006 00005 2.00 34 329 320

-320 DL051304-001 RF1G1 A03FS 00006 00006 2.00 9

196 196

-196 Download File, Average andlor Single Point (SP) Background Summary D~wto~ 10 Sursce Deecte/Roo o~SM Bkki 6d Bk8dg Apha'

$ (L4)n (idZ.

OL051304-001 9E1C2 A03GS 00003 00001 2.00 4

2 12 OL051304-001 BE1C2 A03GS 00004 00001 2.00 2

1 6

DL051304-001 RFIG1 A03GS 00006 00001 2.00 8

4 25 DL051304-001 RF1G1 A03GS 00006 00002 2.00 2

1 6

DL051304-001 RF1G1 A03GS 00006 00003 2.00 7

4 22 DL051304-001 RFIGI A03GS 00006 00004 2.00 4

2 12 DL051304-001 RFIG1 A03GS 00006 0000 2.00 3

2 9

DL051304-001 RFIG1 A03GS 00006 00006 2.00 0

0 0

Characterization Survey Summary Report Page 1 of 2 03-Dec-04 l

MWN Constructors Plum Brook Reactor Decommissioning Project

.8-SO Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-50 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS SurveyPackage Number: D1131 405CI Package Type:

Structure Survey Area Name:

Reactor Service Equipment Building (1 131)

Survey Unit Name:

Exterior Walls and Roof Download File, Instrument Summary and Survey Technician DL051hn 19c Mu12 DL05304-0f1 18994 43.90 PR203395 125 0.1289 SLS7891 Characterization Survey Summary Report Page 2of2 03-Dec.04 P 1WH Constructors Plum Brook Reactor Decommissioning Project B-Si Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-51 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMSSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS Survey Package Number: Dl 131 40iCI Package Type:

Structure Survey Area Name:

Reactor Service Equipment Building (I 13 1)

Survey Unit Name:

Exterior Walls and Roof

'^StatistfcaI~inmamrnirj

'-mi

.>. Measurnmein'tSensiltlvltyr-a Activity

,3 Activity c LLD S LLD

_ dpm/100 ctn2) (dpm/100c cM)l (dpm/l0ocm )

Mean:

2.71 14.89 Mean LLD:

13.13 16.49 Median:

3.15 9.79 Minimum LLD:

13.13 1649 Standard Deviation:

2.92 11.32 Maximum LLD:

13.13 18.49 Range:

7.00 29.40 Action Level:

0.00 0oca Minimum:

-0.35 1.62 Maximum:

8.65 31.02 a

Number'of Meaurements-Prescribed:

0 No. Collected 2 Prescribed Yes Yes Collected:

8 Max LLD < 50% Action Level No No Measurements > Action Level Yes Yes Measurement Mean > Action Level Yes Yes No. Measurement > Action Level 8

Loose Surface Contamination Results by Sample File, Surface/Material. Roomiltem and SML CS051304-001 BE1 L01 NIA 1

3.18 13.13 4.89 18.49 CS051304-001 BE1 L01 NIA 2

-0.35 13.13 1.52 16.49 CS051304-002 RF1 L01 N/A 1

3.15 13.13 24.49 1e.49 CS051304-002 RF1 L01 N/A 2

-0.35 13.13 S.16 16.49 CS051304-002 RF1 L01 NIA 3

6.65 13.13 8.16 16.49 CS051304-002 RF1 L01 NiA 4

3.15 13.13 11.42 16.49 CS051304-002 RF1 L01 N/A 8

-0.35 13.13 27.76 16.49 CS051304-002 RF1 L01 NIA 8

5.65 13.13 31.02 16.49 Characterization Survey Summary Report Page 1 of I (Ti MUVH Constructors 03-Dec-04 Plum Brook Reactor Decommissioning Project B-S2 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-52 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS SurveyPackageNumber:

C1132301CI Package Type:

Structure Survey Area Name:

Fan House (1132)

Survey Unit Name:

Exterior Walls and Roof

-StatistIcal Summary

~

t>E-Measurernent Senaglt -f --

Mean 99 Mean MDC:

413 Median:

74 Minimum MDC:

355 Standard Deviation:

188 Maximum MDC:

468 Range:

709 Action Level:

Minimum:

-129 TestPerformed; Maximum:

880 No. Collected a Prescribed Yes Number of Measurements Max MDC e S0% Action Level No Prescribed:

0 Measurements > Action Level Yes Collected:

20 Measurement Mean > Action Level Yes Reported:

20 No. Measurement > Action Level 14 Survey Measurement Results by Download Fleo, Surface/Materlal, Room/ltem and SML

~

I-ioad ib-Sutiacel 0Detcrt Roor r

SgIL~

Sepe '

GrcssI ietSit&' ~Test R"d (Adeecili DL041103-013 BE1C2 B02FS 00001 00001 1.00 390 1,911 340

-340 DL041103-013 SEIC2 802FS 00001 00005 1.00 374 2,016 580

-580 DL041103-013 BE1M1 BO2FS 00001 00002 1.00 373 1,598 168

-188 DL041103-013 BE1Mt B02FS 00001 00003 1.00 428 1.823

-78 76 DL041103-013 BEIM1 B02FS 00001 00004 1.00 460 2,087

-118 118 DL041103-013 BE1M1 B02FS 00001 00008 1.00 374 1,474 38

-38 DL041103-013 BE1M1 B02FS 00001 00007 1.00 355 1.365 76

-76 DL041103-013 BE1M1 B02FS 00001 00008 1.00 380 1.228

-105 105 0L041103-013 RFIGI B02FS 00002 00001 1.00 432 2.17S 244

-244 DL041103-013 RF1G1 B02FS 00002 00002 1.00 401 1,571

-88 88 DLo41103-013 RF1G1 B02FS 00002 00003 1.00 386 1,897 164

-164 DLo41103-013 RF1G1 B02FS 00002 00004 1.00 411 1,797 55

-55 DLo41105-018 RFtG1 B02FS 00002 00001 1.00 416 1,697 74

-74 0L041105-018 RF1G1 B02FS 00002 00002 1.00 434 1,840 74

-74 DL041105-018 RFIG1 B02FS 00002 00003 1.00 412 1.992 401

-401 DL041105-018 RFIGI 802FS 00002 00004 1.00 458 2,075 101

-101 DL041105-018 RFIM1 B02FS 00002 OOD01 1.00 468 2,116 51

-51 DL041105-018 RFIMI 802FS 00002 00002 1.00 448 1,761

-129 129 DLO41105-018 RF1M1 B02FS OD002 00003 1.00 421 1.849 189

-189 DL041105-018 RFIM1 B02FS 00002 00004 1.00 468 2,010

-58 55 Characterization Survey Summary ROport Page 1 of 3 03-Dec-04 G

MWH Constructors Plum Brook Reactor Decommissioning Project B-53 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-53 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECONIMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: C1 132 301CI Package Type:

Structure Survey Area Name:

Fan House (1132)

Survey Unit Name:

Exterior Walls and Roof Download File, Average and/or Single Point (SP) Background Summary DownloadID I

Surfa Det

/

Bk Bkgd r -

e M~e~ICunt ltam No (LOS) "<C nt-ilrre Cut CoUnt l~OaI 0 L3~ ~Type--(LOS),-

Rate-DLO41103-013 BE1C2 B02GS 00001 00001 1.00 374 374 1,571 DL041103-013 3E1C2 B02GS 00001 00005 1.00 342 342 1,438 DL041103-013 SE1MI 802GS 00001 00002 1.00 340 340 1,428 DL041103-013 BE1M1 B02GS 00001 00003 1.00 452 452 1,898 DL041103-013 BEIM1 B02GS 00001 OW04 1.00 525 525 2,205 DL041103-013 BE1M1 802GS 00001 0006 1.00 342 342 1.436 DL041103-013 BEIMI B02GS 00001 00007 1.00 307 307 1,289 DL041103-013 BEtMI B02GS 00001 00008 1.00 317 317 1,331 DL041103-013 RF1G1 B02GS 00002 00001 1.00 450 460 1,932 DL041103-013 RF1G1 802GS 00002 00002 1.00 395 395 1,659 DL041103-013 RF1G1 802GS OOD02 00003 1.00 365 365 1,533 DL041103-013 RF1G1 B02GS 00002 00004 1.00 415 415 1,743 DL041105-018 RFIGt B02GS 00002 00001 1.00 352 352 1,623 DL041t05-018 RFI1G B02GS 00002 00002 1.00 383 383 1,7R0 DL041105-018 RFIG1 802GS 00002 00003 1.00 345 345 1,591 DL041105-018 RFIG1 B02GS 00002 00004 1.00 428 428 1,973 DL041105-018 RF1M1 BO2GS 00002 00001 1.00 448 448 2,066 0L041105-018 RF1M1 B02GS 00002 00002 1.00 410 410 1,890 DL041105-014 RF1M1 B02GS 00002 00003 1.00 360 360 1,880 DL041105-018 RF1M1 B02GS 00002 00004 1.00 448 448 2,066 QC Survey Measurement Results by Download File, SurfacelMaterial, Room/iltem and SML DL04t103-011 EE1C2 B02CIS 0001 00001 1.00 328 1,773 784

-784 DL0411034011 RF1G1 B02QS 00002 00001 1.00 408 1,938 316

-316 QC Download File, Average and/or Single Point (SP) Background Summary Dowinload ID rS--urfacel Delectorf R;hoomfp 6

Bkg

.'3Bd Bkdg Bets

~ vaterilai Cokt.

ter Po(,8 on~m ounts 1 coun-a Coril

-TM Rate (LC4 DL041103-011 BE1C2 B02PS 00001 00001 1.00 227 227 1,009 DL041103-011 RFtG1 B02PS 00002 00001 1.00 365 365 1622 Characterization Survey Summary Report Page 2 of 3 f

MWH ConStructarS 03-Dec-04 Plum Brook Reactor Decommissioning Project B-54 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-54 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: C1132 301C1 Package Type:

Structure Survey Area Name:

Fan House (1132)

Survey Unit Name:

Exterior Walls and Roof Download File, Instrument Summary and Survey Technician DL041103-011 189088 44-11e PR197315 125 0.18 PAM7843 DL041103-013 180716 44-116 PR186386 125 0.1905 TDG7534 DL041105-018 203468 44-116 PR203147 125 0.1735 TDG7534 Characterization Survey Summary Report Page 3 of 3 03-Dec-04 e ivi Constructors Plum Brook Reactor Decommissioning Project B-SS Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-55 PRevision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS SurveyPackageNumber:

C1132 301CI Package Type:

Structure Survey Area Name:

Fan House (1132)

Survey Unit Name:

Exterior Walls and Roof Statistial Summary =

S M.:~

e riasurement Sealstlvft - :-t o Activity 3 Activity o LLD 3LLD (dpm/100 cm')

(dpmlloo c_)

(dpm/tOO cm')

tdpm1100 cm-)

Mean:

0.22 10.60 Mean LLD:

11.91 17.36 Median:

-0.20 9.00 Minimum LLD:

11.91 17.36 Standard Deviation:

1.20 8.71 Maximum LLD:

11.91 17.36 Range:

3.38 22.37 Action Level:

0.00 0.00 Minimum:

-0.20 1.01 TestPerormed Maximum:

3.18 23.38 a

I

Number of Measurements

. T Prescribed:

0 No. Collected Z Prescribed Yes Yes Collected:

8 MaxLLDe5O%ActionLevel No No Measurements > Action Level Yes Yes Measurement Mean -Action Level Yes Yes No. Measurement > Action Level 1

8 Loose Surface Contamination Results by Sample File, Surface/Material, Roomlitem and SML CS041108-003 RF1 L01 2

RFIMI-2-1 40.20 11.91 10.60 17.36 CS041108-003 RF1 L01 2

RF1MI-2-2

-0.20 11.91 1.01 17.36 CSD41108-003 RF1 L01 2

RFlMl12-3

-0.20 11.91 23.38 17.36 CS041108-003 RF1 L01 2

RFIM1-2-4

-0.20 11.91 1.01 17.36 CS041108-004 RF1 L01 2

RFIGI-2-1

-0.20 11.91 20.18 17.36 CS041108.004 RF1 L01 2

RF11-2-2 3.18 11.91 16.99 17.36 CS041108-004 RF1 L01 2

RFlGI-243

-0.20 11.91 4.21 17.36 CS041108-004 RF1 L01 2

RF11-2-4

-0.20 11.91 7.40 17.36 Characterization Survey Summary Report Page 1 of 1 03-Dec-04 a

MWH Constrtctors Plum Brook Reactor Decommissioning Project

.B-S6 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-56 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA SPECTRAL ANALYSIS RESULTS SurveyPackageNumber: C1132301CI Package Type:

Structure Survey Area Name:

Fan House (1132)

Survey Unit Name:

Exterior Walls and Roof 7

j S2 F i'

Co-60 (pCI/g)

Cs-137 (pCi/g)

Unity Test Mean:

NIA 4A64E-01 0.05 Median:

NIA 4.464E-01 0.05 Standard Deviation:

NIA 3.096E-1 0.02 Range:

N/A 6.564E-01 0.03 Minimum:

N/A 2.365E-01 0.03 Maximum:

N/A

.564E-01 0.06

-- -: - - -'Me u'r'"e en itivi' Co-60 (9CVig)

Cs-137 (pCiI9)

Mean MDC:

1.398E-01 1.191E-1 Minimum MDC:

7.63SE-02 4.978E-02 Maximum MDC:

2.319E-01 1.908E-1 Actien Level:

3.80 11.71 uerof iauretnents Co-SO (PCug)

Cs-137 (=Ci/g)

Prescribed:

0 0

Collected:

4 4

Positve Results:

0 2

Co-60 MgCig)

Cs-137 (pClg)

UnitY Test No. Collected ? Prescribed Ycs Yes Max MOC < 10% Action Level Yes Yes Measurements > Action Level No No No Measurement Mean > Action Level N/A No No No. Measurement > Action Level 0

0 0

Gamma Soectral Analvsis Results by Sample File. Surface/Material. Roomlitem and SML Sampleib Surfaf iettorI R om rd S

Z CoDt eCsctor.

7 Tni i MaeilCjrt tmio.-i

~ght MOC;jtReait

~

Test CS041108-011 RF1 L01 2

1 109.9 1.190E401 6.564E401 1.345E4.1 CS041108-012 RF1 LO 2

2 56.4 2.319E-01 1.908E401 CS041108-013 RF1 L01 2

3 171,3 7.635E-02 2.365E-01 4.978E-42 CS041108"14 RFI L01 2

4 99.6 1.313E-01 1.014E-01 Characterization Survey Summary Report Page 1 of 2 07-Dec.04

( MIAJVl Construr~tors Plum Brook Reactor Decommissioning Project B-57 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-57 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAIEMMA SPECTRAL ANALYSIS RESULTS Survey Package Number: Cl 132 301C1 Package Type:

Structure Survey Area Name:

Fan House (1132)

Sarvey Unit Name:

Exterior Walls and Roof QC Gamma Spectral Aralysis Results by Sample Flle, Surface/Material, Roomiltom and SML SampeID 'tiaaei tedor..RtR e

Co=41108-O1O RF1 002 2

1 42,1 3.106E-01 2.77CE41

F~or smvatr counted hy gamma spectral analysis (Sample NVelght -

gl the actual report-dg units arc Total Activity in pCI.

Lend-Yelluw-0.9t99XAI.

Unit" Test (i'

Ote Pln S-..veI Aaevl,~

Ot~nDerived Radionucildes ldenttfie ed CS041108-011 4 21 2.145E.OO

'011j MDtC a>

2706E+Xj CSO4110&.-012 I

4.328E4O1 2

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5 0.9-t7 9.480E.l A

041108-013 I

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tfDC1"1 2 14SEl00 CS041108-014 dtDC ll Characterization Survey Summary Report Page 2 of 2 07-Dec-04 (a) 1AMV-H Constr'uctor-s Plum Brook Reactor Decommissioning Project B-58 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-58 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS SurveyPackageNumber: C1133301C1 Package Type:

Structure Survey Area Name:

Waste Handling Building (1133)

Survey Unit Name:

Exterior Walls and Roof

.. :-Sttstlcal urnmm '

MesuremientSensitvity Mean:

is Mean MDC:

414 Median:

-12 Minimum MDC:

340 Standard Deviation:

164 Maximum MDC:

582 Range:

528 Action Level:

0 Minimum:

-180 i-Tet Pi'rmed Maximum:

349 No. Collected 2 Prescribed Yes Number of Measurements Max MDC - S0% Action Level No Prescribed:

0 Measurements > Action Level Yes Collected:

20 Measurement Mean > Action Level Yes Reported:

20 No. Measurement > Action Level 9

Survey Measurement Results by Download File, Surface/Material, Room/item and SML Downtlad D SIut cel)Delect T:oML >Sjip MDeai Gross

'NSet BWa

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DL041103-014 BEtM1 B02FS 00001 00001 1.00 376 1,340

-113 113 0L041103-014 8E1M1 B02FS 00001 00002 1.00 358 1,419 105

-105 CL041103-014 SE1M1 B02FS 00001 00003 1.00 340 1,272 92

-92 DL041103-014 6E1M1 B02FS 00001 00004 1.00 365 1,306

-59 59 DL041103-014 3E1M1 B02FS 00001 00005 1.00 399 1,512

-134 134 DL041103-014 BE1M1 B02FS 00001 00006 1.00 386 1,562 29

-29 DL041103-014 3E1M1 B02FS 00001 00007 1.00 411 1,625

-122 122 DL041103-014 BEIM1 B02FS 00001 00008 1.00 486 2,339

-151 151 DL041111-009 BEIM1 B02FS 00001 00020 1.00 582 3,914 349

-349 DL041103-014 RF1G1 B02FS 00002 00001 1.00 424 1,696 34

-34 DL041103414 RF1G1 B02FS 00002 00003 1.00 388 1,730 176

-176 OL041103-014 RF1G1 B02FS 00002 00004 1.00 374 1,781 340

-340 DLO411 5-019 RFIGI 302FS 00002 00001 1.00 420 1,485

-166 166 OL0411D5-019 RF1G1 B02FS 00002 00002 1.00 391 1,406

-15 18 OL041I0--019 RF1G1 902FS 00002 00003 1.00 415 1,886 277

-277 DLD41i05-019 RF1G1 802FS 00002 00004 1.00 441 1,812

-14 14 OL041105-019 RF1M1 S02FS 00002 00001 1,00 420 1,646

-9 9

DLO4110S-019 RF1M1 B02FS D0002 00002 1.00 402 1,388

-124 124 DL041105-019 RF1M1 B02FS 00002 00003 1.00 443 1.58 14

-14 DLO41105-019 RF1M1 802FS 00002 00004 1.00 453 1,752

-180 180 Characterization Survey Summary Report Page 1 of 3 03-Dec.04 GPAVUIH Construc~tors Plum~~~~~~~~~~~~~~~~~~

Bro.eco eomsinn rjc

-9Rvso eebr1,20 Plum Brook Reactor Decommissioning Project B-59 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS SurveyPackageNumber: C1133 301CI Package Type:

Structure Survey Area Name:

Waste Handling Building (1133)

Survey Unit Name:

Exterior Walls and Roof Download file, Average andlor Single Point (SP) Background Summary DovlodI Surate~al eter r Rom r L.nBR Bg

';g B^Bi

'd8ota' DL041103-014 BE1M1 802GS 00001 00001 1.00 346 346 1,453 DL041103-014 BEIMI B02GS 00001 00002 100 313 313 1,314 DL041103-014 aBElM1 02GS 00001 00003 1.00 281 281 1,180 DL041103-014 BE1M1I B02GS 00001 00004 1.00 325 325 1,365 DL041103-014 BEIM1 B02GS 00001 00005 1.00 392 392 1,646 DL041103-014 BE1MI B02GS 00001 00008 1.00 365 365 1,533 OL041103-014 BE1M1 B02GS 00001 00007 1.00 416 418 1,747 DL041103-014 BE1M1 B02GS 00001 00008 1.00 593 593 2.490 DL041111-009 BE1M1 B02GS 00001 00020 1.00 849 S49 3,565 DL041103-014 RF1GI B02GS 00002 00001 1 00 444 444 1,865 DL041103-014 RF1G1 B02GS 00002 00003 1.00 370 370 1,554 DL041103-014 RF1G1 B02GS 00002 00004 1.00 343 343 1,440 DL041105-019 RF1G1 802GS O0002 00001 1.00 358 358 1,651 01041105-19 RF1G1 B02GS 00002 00002 1.00 309 309 1,425 DL041105-019 RFIG1 BO2GS 00002 00003 1.00 349 349 1,609 DL04110-019 RF1G1 B02GS 00002 00004 1.00 396 396 1,526 OL041105-019 RFIM1 B02GS 00002 00001 1.00 359 359 1.S55 DL041105-019 RF1M1 B02GS 00002 00002 1.00 328 328 1,512 DL041105-019 RF1M1 802GS 00002 00003 1.00 400 400 1,844 OL041105-019 RF1M1 B02GS 00002 00004 1.00 419 419 1,932 QC Survey Measurement Results by Download File, Surface/Material, Room/ltem and SML Dtoacd ID S-eei t

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-356 QC Download File, Average and/or SIngle Point (SP) Background Summary

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01041103-012 BE1M1 Bo2PS 00001 00001 1 00 233 233 1.036 DL041103-012 RFIGI Bo2PS 00002 00001 100 321 321 1,427 Characterization Survey Summary Report Page 2 of 3 2T MWI-Constructors 03-Dec-04 Plum Brook Reactor Decommissioning Project B-60 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-60 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS SurveyPackageNumber: C1133301Cl Package Type:

Structure Survey Arca Name:

Waste Handling Building (1133)

Survey Unit Name:

Exterior Walls and Roof Download File, Instrument Summary and Survey Technician

R

.~

etecor~re

~

oncey, DL041103-012 19088 44-11B PR197315 125 0.18 PAM7843 DL041103-014 180716 44-116 PR188386 125 0.1905 JGS8492 DL041105-019 203488 44-116 PR203147 125 0.1735 CHM2299 DL041111-009 180718 44-116 PR188386 125 0.1905 JGS8492 Characterization Survey Summary Report Page 3 of 3 03-Dec-04 MaAWH Constructors Plum Brook Reactor Decommissioning Project B-61 Revision 0 December 16, 2004 Plum Brookc Reactor Decommissioning Project B-61 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMIMIISSIONING Sandusky. Ohio GAMMA MEASUREMENT RESULTS SurveyPackage Number: C1133301C1 Package Type:

Structure Survey Area Name:

Waste Handling Building (1133)

Survey Unit Name:

Exterior Walls and Roof Statistical Summary contact) ts'

-I A,

tamfstlctl SuM'ary (1 Mete')

Mut Bohr Mean:

48.60 Mean; 20.44 Median:

46.60 Median:

20.44 Standard Deviation:

Standard Deviation:

Range:

0.00 Range:

0.00 Minimum:

48.80 Minimum:

20.44 Maximum:

46.80 Maximum:

20.44 Contact Survey Measurement Results by Download File, Surface/Material, Room/item and SML

~Mt~ia Cutay P

(Loy d~rate DLO41l11-007 BElMi G01iN 00001 00020 48,275 46.6 I Meter Survey Measurement Results by Download File, Surface/Materlal, Room/litem and SML Downlloaoi 0 D

Siiiacei '

i~tt

i.

no 1

'74.

S5ML.. ;.)

Logged Exi6ure DL041111-007 BEIMI G02FN 00001 00020 21,178 20.4 Download File, Instrument Summary and Survey Technician f.:,,e,,

DL041111-007 201186 44-10 PR198942 6.22E+16 TDG7534

^ The Gamma Cal Factor used to convert the counts per minute into an enxpoure rate was obtained using a Cs-137 source.

Characterization Survey Summary Report Page 1 of 1 03-Dec-04

)

MWHI Constructors Plum Brook Reactor Decommissioning Project

.8-62 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-62 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS SurveyPackageNumber:

C1133301CI Package Type:

Structure Survey Area Name:

Waste Handling Building (1133)

Survey Unit Name:

Exterior Walls and Roof Statitic uMeasrement SenstIvityi.,

a Activity

,3ACtivity o LD pLLD (dprn1DOO cm2) (dpm/100 c=2)

(dpmr100 cmx) (dpmt100 cm')

Mean:

0.48 7.08 Mean LLD:

11.91 17.36 Median:

-0.20 4.21 Minimum LLD:

11.91 17.36 Standard Deviation:

1.39 9:09 Maxlmum LLD:

11.91 17.36 Range:

3.38 31.95 Action Level:

0.00 0.00 Minimum:

-0.20

-2.18

. 4-m-. -7 Teat Performed

"_a Maximum:

3.18 29.77 a

. Number af Meiaeurimenti '

Prescribed:

0 No. Collected 2 Prescribed Yes Yes Collected:

20 Max LLD -c 50'h Action Level No No Measurementr > Action Level Yes Yes Measurement Mean > Action Level Yes Yes No. Measurement > Action Level 4

17 Loose Surface Contamination Results by Sample File, SurfacelMaterial, Room/item and SML CS041103-06 BE1 LOI 1

BE 1-1 3.18 11.91 4.21 17.36 CS041103-006 BE1 L01 1

BE 1-2 3.18 11.91 1.01 17.36 CS041103-008 BE1 L01 1

BE 1-3

-0.20 11.91 4.21 17.36 CS041103-006 BE1 L01 1

BE 1-4 40.20 11.91

-2.t8 17.36 CS041103-006 BE1 L01 I

BE 1-5 3.18 11.91 4.21 17.36 CS041103-006 BEI L01 1

BE1-8

-0.20 11.91 4.21 17.36 CS041103-008 3E1 L01 I

BE 1-7

-0.20 11.91 7.40 17.36 CS041103-006 BE1 L01 1

BE 1-8 3.18 11.91 10.60 17.36 CS041103-008 RFI L01 2

RF2-1

-0.20 11.91 26.57 17.36 CS041103-008 RF1 L01 2

RF 2-2

-0.20 11.91

-2.18 17.36 CS041103-008 RF1 L01 2

RF24

-0.20 11.91 1,01 17.36 CS041103-CQ8 RF1 L01 2

RF2-4

-0.20 11.91 13.79 17.36 CS041108-001 RF1 L01 2

RF1GI-2-1

-0.20 11.91 16.99 17.36 Characterization Survey Summary Report Pago I of (21 MWiH Constructorm 03-Dec-04 Plum Brook Reactor Decommissioning Project B-63 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-63 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS SurveyPackageNumber:

C1133 301CI Package Type:

Structure Survey Area Name:

Waste Handling Building (1133)

Survey Unit Name:

Fxterior Walls and Roof CS041108-001 RF1 LOt 2

RF1Gl-2-2

-0.20 11.91 29.77 17.36 CS041108-001 RF1 L01 2

RFIG1-2-3

-0.20 11.91 13.79 17.36 CS041108-001 RF1 L01 2

RFIGI-2-4

-0.20 11.91

-2.18 17.3S CS041108-001 RF1 L01 2

RFlMI-2-1

-0.20 11.91 7.40 17.36 CS041108-001 RF1 L01 2

RFlMI-2-2

-0.20 1191 1.01 17.36 CS041108-001 RF1 L01 2

RFlM1-2-3

-0.20 11.91 1.01 17.38 CS041108-001 RF1 L01 2

RF1M1-2-4

-0.20 11.91 1.01 17.36 Characterization Survey Summary Report Page 2 of 2 03-Dec-04 a

MWH Constructors Plum Brook Reactor Decommissioning Project

.B-64 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-64 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: C1134 301C2 Package Type:

Structure Survey Area Name:

Primary Pump House (1134)

Survey Unit Name:

Primary Pump House Exterior Walls (Rev. 0)

Statistical Summari

<i.

Mean:

846 Mean MDC:

357 Median:

572 Minimum MDC:

282 Standard Deviation:

1,010 Maximum MDC:

538 Range:

3,071 Action Level:

0 Minimum:

240 Test Perorred' Maximum:

3,311 No. Collected2 Prescribed Yes

-. Number of Measurments Max MDC e 50% Action Level No Prescribed:

0 Measurements > Action Level Yes Collected:

8 Measurement Mean > Action Level Yes Reported:

8 No. Measurement > Action Level 8

Survey Measurement Results by Download File, SurfacelMaterlal. Roomiltem and SML Doiload1lD Suriare/ Detectoroift

i. or ap easb N__i DL041012-003 BEIC2 B02FS 00001 00001 1.00 335 1,706 568

-566 OL041012-003 8E1C2 802FS 00001 00002 1.00 282 1,372 578

-578 DL041012-003 BE102 802FS 00002 00001 1.00 332 1,870 751

-751 DL041012-003 BE1C2 802FS 00002 00002 1.00 296 1.165 287

-287 DLO41018-004 3E1C2 302FS 00003 00001 1.00 357 1,471 240

-240 DLO41018-004 3E1C2 B02FS 00003 00002 1.00 337 1,533 444

-444 DL041018-004 3E102 B02FS 00003 00003 1.00 379 1,978 591

-591 DLO41018-004 BE1C2 302FS 00003 00004 1.00 538 68173 3,311

-3,311 Download File, Average andlor Single Point (SP) Background Summary D

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~Rate 0L041012-003 3E1C2 302GS 00001 00001 1.00 270 270 1,140 DL041012-003 BE1C2 802GS 00001 00002 1.00 188 188 794 DL041012-003 BE1C2 802GS 00002 00001 1.00 265 265 1,119 DLO41012-003 BE1C2 B02GS 00002 00002 1.00 208 208 878 DLO41018-004 3E1C2 B02GS 00003 00001 1.00 277 277 1,231 DL041018-004 3E1C2 802GS 00003 00002 1.00 245 245 1,089 OL041018-004 3E1C2 802GS 00003 00003 1.00 312 312 1,387 DL041018-004 BE1C2 802GS 00003 00004 1.00 644 644 2,862 Characterization Survey Summary Report Page 1 of 2 07-Dec-04 fa~ P.WV4 Con5trtIptors Plum Brook Reactor Decommissioning Project

.B-6S Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-65 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: Cl 134 301C2 Package Type:

Structure Survey Area Name:

Primary Pump House (I 134)

Survey Unit Name:

Primary Pump House Exterior Walls (Rev. 0)

QC Survey Measurement Results by Download File, Surface/Material, RoomIltem and SML Dcwnload ID -S' acal Detal~ Room W-Si r

Zasire --

Grcs -: Noi§et et DL041012-005 BE1C2 B02QS 00002 00003 1.00 301 1,138 280

-280 QC Download File, Average and/or Single Point (SP) Background Summary owntoad D suracai DiOectoom or SM I6 Blkg9 Bkgdg-igd Bkdg Beta Material Cut151N.

66 LmCe) Ccithe'7Cu C6unt (dopono cmy (Lr ) -~p (LY

'mn)YRt 0L041012-005 BE1C2 B02PS 00002 00003 1.00 193 193 8se Download File, Instrument Summary and Survey Technician 0L041012-003 192608 44-11t PR197314 125 0.1895 PAM7843 DLo41012-005 189088 44.118 PR197315 125 0.18 PAM7843 DLO41018-004 189088 44-118 PR19731S 125 0.18 PAM7a43 Characterization Survey Summary Report Page 2 of 2 07-Dec-04 (a rWV/Ui Constructors Plum Brook Reactor Decommissioning Project 3-66 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-66 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS Survey Package Number: C1134 301C2 Package Type:

Structure Survey Area Name:

Primary Pump House (1134)

Survey Unit Name:

Primary Pump House Exterior Walls (Rev. 0)

Statistical umma MeasuremantSent itlltmty Mean:

44 Mean MCC:

22 Median:

44 Minimum MDC:

22 Standard Deviation:

Maximum MDC:

22 Range:

Action Level:

0 Minimum:

44 Test Performed i-Maximum:

44 No. Collected 2 Prescribed Yes Number oa Mecsureentas Max MDC c 50% Action Level No Prescribed 0

Measurements > Action Level Yes Collected 1

Measurement Mean > Action Level Yes Reported 1

No. Measurement> Action Level 1

Survey Measurement Results by Download File, SurfacelMaterial, Roomlitem and SML i

urtece DeetrP ogr-M7Siiqe Mau Grs Nt Alpa Ts atirfal Cortie o(~)Cunt M'

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3 25 Characterizatlon Survey Summary Report Page 1 ot2 0

rVI'H Constructors 07-Dec-04 P l u m ~~ ~ ~ ~

~ ~ ~ B r o R e c o D e o m s i n n P r j c B.

R e is o 0 D e e m e 1 6 2 0 04_

Plum Brook Reactor Decommissioning Project B-67 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS Survey Package Number: Cl1134 301C2 Package Type:

Structure Survey Area Name:

Primary Purnp House (I1134)

Survey Unit Name:

Primary Pump House Exterior Walls (Rev. 0)

Download File, Instrument Summary and Survey Technician Wd~fbtrArea JSurvey~

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Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAIMMA MEASUREMENT RESULTS Survey Package Number: C] 134 301C2 Package Type:

Structure Survey Area Name:

Primary Pump House (1134)

Survey Unit Name:

Primary Pump House Exterior Walls (Rev. 0)

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23.14 Mean:

13.32 Median:

22.69 Medlan:

13.27 Standard Deviation:

1.07 Standard Deviation:

0.17 Range:

2.29 Range:

0.38 Minimum:

22.44 Minimum:

13.18 Maximum:

24.74 MaxImum:

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The Gamma Cal Factor used to convert the eounts per minute Into an exposure rate was obtained using a Cs-137 sou rec.

Characterization Survey Summary Report Page 1 of I 07-Dec-04 (aPM'PJH Constructors Plum Brook Reactor Decommissioning Project B-69 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-69 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS Survey Package Number: C1134301C2 Package Type:

Structure Survey Area Name:

Primary Pump House (1134)

Survey Unit Name:

Primary Pump House Exterior Walls (Rev. 0) ti..;

s umisiticalSurnmari Q.

%e; tasiirement a Adtvity A Actftvi (dpm/100 cm') (dpm/100 cmn)

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-0.25 12.75 8.40 10.20 32.67 1.88 34.53 a LLD P LLD (dpml/o0 cm ) (dpmI100 cm')

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12.54 15.91 Minimum LLD:

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12.54 15.91 Action Level:

0.00 0.00 Test Performed-Number of Measuremert Prescribed:

0 No. Collected > Prescribed Yea Yes Collected:

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2-2

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2-3

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C2-3-1

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C243-2

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C2-3-4 40.25 12.54 34.53 15.91 Characterization Survey Summary Report Page 1 of 1 07-Dec-04 (a NJUN Consiructors Plum Brook Reactor Decommissioning Project B-70 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-70 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: C1141210CI Package Type:

Structure Survey Area Name:

Reactor Office and Laboratory Building (1141)

Survey Unit Name:

Crawl Space, Area 7 n.St'ab-stttcal Sunmar MeasurementSens ty i

-79 2!

Mean:

450 Mean MDC:

332 Median:

490 Minimum MOC:

303 Standard Deviation:

121 Maximum MDC:

356 Range:

346 Action Level:

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262

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608 No. Collected 2 Prescribed Yes Number of MeasurenentI Max MDC c 50% Action Level No Prescribed:

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-304 1LO4101O-015 CLICI BO2FS 00003 00003 1.00 356 1,554 282

-262 0L041019-015 WLIC1 B02FS 00002 00001 1.00 340 1,554 384

-384 0L041019-015 WL1C1 B02FS 00002 00002 1.00 331 1,663 553

-553 0L041019-015 WL1C1 B02FS 00002 00003 1.00 303 1,431 507

-507 DL041019-015 WLICI B02FS 00002 00004 1.00 331 1,718 608

-608 DL041019-015 WLIC1 BO2FS 00002 00005 1.00 331 1,604 494

-494 Download File, Average and/or Single Point (SP) Background Summary DL041019-015 CLtC1 B02GS 00003 00001 1.00 249 249 1,051 DL041019-015 CLiC1 802GS 00003 00002 1.00 282 262 1,191 CL041019-015 CL1C1 B02GS 00003 00003 1.00 306 30S 1,292 OL041019-015 WL1C1 802GS 00002 00001 1.00 277 277 1,169 DL041019-015 WL1C1 B02GS 00002 00002 1.00 263 263 1,110 DL041019-015 WL1CI 602GS 00002 00003 1.00 219 219 925 DL041019-015 WLIC1 802GS 00002 00004 1.00 263 263 1,110 CL041019-015 WL1C1 B02GS 00002 00005 1.00 263 263 1,110 Characterization Survey Summary Report Page 1 of 2 03-Dec-04 aM WH Constructors Plum Brook Reactor Decommissioning Project B-71 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-71 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: C1141 210CI Package Type:

Structure Survey Area Name:

Reactor Office and Laboratory Building (1141)

Survey Unit Name:

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@ MWH Constructors Plum Brook Reactor Decommissioning Project B-72 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-72 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS Survey Package Number: C1 141 210CI Package Type:

Structure Survey Area Name:

Reactor Offlce and Laboratory Building (1141)

Survey Unit Name:

Crawl Space, Area 7 Statistical Summar-,y easementS itivity Mean:

52 Mean MDC:

82 Median:

52 Minimum MDC:

82 Standard Deviation:

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82 Range:

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Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA MEASUREMENT RESULTS Survey Paclkage Number: Cl 141 210C1 Package Type:

Structure Survey Area Name:

Reactor Office and Laboratory Building (1141)

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Crawl Space, Area 7 b~j

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1.82 Range:

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8.32 Maximum:

7.7S 0.47 1.29 6.50 8.19 Contact Survey Measurement Results by Download File, Surface/Material, Roomiltem and SML

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DL041019-012 FL101 GO1FN 00001 00001 8,508 6.5 OL41019-012 FL1GI G01FN 00001 00002 8,112 8.1 DL041019-012 FL1G1 G01FN 00001 00003 8,272 8.3 DL041019-012 FLIGI GO1FN 00001 00004 7,460 7.5 DLo41019-012 FL1G1 G01FN 00001 00005 7,736 7.7 DL041015-012 FLlGi GO1FN 00001 00006 7,812 7.8 DL041019-012 FLIG1 GOIFN 00001 00007 7,944 7.9 DL041019-012 FL1G1 G01FN 00001 00008 8,324 8.3 1 Meter Survey Measurement Results by Download File, SurfaceiMaterlal, Roomiltem and SML Downioad ID u-SOuria's/'

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Characterizatlon Survey Summary Report Page 1 of I 03-Dec-04 (aMIVVH Cons-tructors Plum Brook Reactor Decommissioning Project

.8-74 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-74 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS Survey Package Number: Cl 141 210C]

Package Type:

Stiucture Survey Area Name:

Reactor Office and Laboratory Building (1141)

Survey Unit Name:

Crawl Space, Area 7

=Stati'stical'Summry fMeasurementSenavt.U o Acivity 3 Activity a LLD I LLD (dpm/100 cm')

(dpm/100 cm)

_dpm/100 cm')

(dpm/100 cmr)

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-0.25 10.57 Mean LLD:

12.54 15.91 Median:

0.25 5.13 Minimum LLD:

12.64 15.91 Standard Deviation:

0.00 13A7 Maximum LLD:

12.54 15.91 Range:

0.00 42.47 Action Level:

0.00 0.00 Minimum:

-0.25 1.83 Test Psrformed Maximum:

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.:"Number of Measurements.

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0 No. Collected 2 Prescribed Yes Yes Collected:

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-0.25 12.54 8.40 15.91 CS0410194O1 WL1 L01 N/A CLU-3-3

0.25 12.54 1.86 15.91 CS041019-001 WL1 L01 N/A CL1-34

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-0.25 12.54 14.93 15.91 CS041019-001 WL1 L01 NIA WLI-2-2

-0.25 12.54 1.86 15.91 CS041019-001 WL1 L01 NIA WL1-2-3

-0.25 12.54 11.65 15.91 CS041019-001 WLI L01 NIA WL1-2-4

-0.25 12.54 5,13 15.91 CS041019-001 WL1 L01 N/A WLI-2.5

-025 12.54 1.85 15.91 Characterization Survey Summary Report Page 1 of 1Ii MWH Construotors 03-Cec-04a 114Cntuor Plum Brook Reactor Decommissioning Project

.8-75 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-75 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: C1141 21 ICI Package Type:

Structure Survey Area Naame:

Reactor Office and Laboratory Building (1141)

Survey Unit Name:

First Floor C E2 I

Surai'Summary --

I ;' '

)ffices, Lobby, Conference Room, Classroom, Janitor f

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263 121 565 18,01

-137 Mean MDC:

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471 442 Maximum MDC:

503 Action Level:

0 TTest ertormied

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1,684 Number of Measurements

- ti Prescribed:

Collected:

Reported:

0 No. Collected 2 Prescribed Max MDC < 50% Action Level Measurements > Action Level Measurement Mean > Action Level No. Measurement > Action Level Yes No Yes Yes 10 16 Survey Measurement Results by Download File, Surface[Material. Room/item and SML Down~oad iD Surfacal; Datector/ -R~oom SiAL.Sieiie M

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Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS SurveyPackageNumber: Cl141 211C1 Package Type:

Structure Survey Area Name:

Reactor Office and Laboratory Building (1141)

Survey Unit Name:

First Floor Offices, Lobby, Conference Room. Classroon, Janitor Download File, Average and/or Single Point (SP) Background Summary DL040707-004 FL1G1 802GS 0001t OOO0t 1.00 357 357 1,980 DLo40707-004 FL1Gc 8O2GS 00016 00001 1.00 311 311 1,708 DL040707-004 FL1G1 302GS 00019 00001 1.00 288 288 1,53t DL040707 004 FL1G1 B02GS 00021 00001 t 00 297 297 1,S31 DL040707-004 FL1G1 802GS 00025 00001 1.00 323 323 1,774 DL040707-005 FL1G1 802GS OOO0t W0001 1.00 362 362 t,988 DL040707 005 FL1 GI 802GS 00007 00001 t.00 277 277 1,521 DL040707-005 FLIG1 B02GS 00011 00001 1.00 357 357 1,960 DL040707-005 FL1G1 B02GS 00018 00001 1.00 311 311 1,708 DL040707-005 FL1GI B02GS 00017 00001 1.00 319 329 1,752 DL040707-005 FL1 GiB02GS 00019 00001 1.00 288 297 1,581 OL040707-005 FLIGI BO2GS 00020 00001 1.00 297 297 1,631 DL040707-005 FLIG1 B02GS 00025 00001 1.00 353 323 1,774 DL040707-004 FLiY1 B02GS 00001 00001 1.00 312 312 1.978 Download File, Instrument Summary and Survey Technician Downloadre lD

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MWH Constructors Plum Brook Reactor Decommissioning Project

.B.-77 Revision 0 December 16, 2004 Pluwm Brook Reactor Decommissioning Project B-77 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS SurveyPackageNumber:

C1141 211CI Package Type:

Structure Survey Area Name:

Reactor Office and Laboratory Building (I 141)

Survey Unit Name:

First Floor Offices, Lobby, Conference Roor, Classroorn, Janitor

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0 01D040707-006 FLlG1 A03FS 00021 00001 1.00 84 22 11

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-33 Download Flie, Average andhor Single Point (SP) Background Summary LDL40707-006 FL1G1 A03GS 00007 0C001 1.00 1

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Characterization Survey Summary Report Page 1 of 2 03-Dec-04 IWNH Constructors Plum Brook Reactor Decommissioning Project

.B-78 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-78 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio _

DIRECT ALPHA MEASUREMENT RESULTS Survey Package Number: Cl 141 21 ICI Package Type:

Structure Survey Area Name:

Reactor Office and Laboratory Building (1141)

Survey Unit Name:

First Floor Offices, Lobby, Conference Room, Classroom, Janitor Download File, Instrument Summary and Survey Technician DL040707-006 180716 43-90 PR188387 125 0.073125 SLM2556 Characterization Survey Summary Report Page 2 of 2 03-Dec-04 a

M1WH Constructors Plum Brook Reactor Decommissioning Project B-79 Revision 0 December 16, 2004 Plum Brookc Reactor Decommissioning Project B-79 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONLNG Sandusky, Ohio GAMMA MEASUREMENT RESULTS SurveyPacksigeNumber: C1141 211CI Package Type:

Structure Survey Area Name:

Survey Unit Name:

Reactor Office and Laboratory Building (I 14 1)

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OL040707-003 FLIG1 G01FN 00007 00001 7,868 7.7 OL040707-003 FL1G1 GOWFN 00011 00001 12,284 12.0 CL040707-003 FLIGI GOIFN 00016 00001 7,256 7.1 OL040707-003 FLIGI GOIFN 00017 00001 7,164 7.0 OLo40707-003 FLIGI G01FN 00019 00001 6,836 6.5 DL040707-003 FL1Gi G01FN 00021 00001 7,076 6.9 OL040707-003 FL1G1 GOtFN 00025 00001 6,904 6.8 OL040707-003 FLIYI GO1fN 00001 00001 10,624 10.4 1 Meter Survey Measurement Results by Download File, Surface/Material, Roomiltem and SML DL040707-003 FLIGI G02FN 00007 00001 7,952 7.8 DL040707-003 FLtG1 G02FN 00011 00001 10,768 10.6 DL040707-003 FLiG1 G02FN 00016 00001 7,372 7.2 DL040707-003 FL1Gt G02FN 00017 00001 7,716 7.6 CL0407074003 FL1GI G02FN 00019 00001 6,880 6.7 DL040707-003 FLIGI G02FN 00021 00001 7,560 7.4 OL040707.003 FL1G1 G02FN 00025 00001 7,816 7.7 CL040707-003 FLiY1 GO2FN 00001 00001 9,452 9.3 Download File, Instrument Summary and Survey Technician Dopoa 2 50 N taborSN

~

X'l 5

" reaniceW DL040707-003 180718 44-10 PR188338 5.13E+10 BAD8681

' The Camma Cal Factor used to convert the counts per minute Ita an exposure mte was obtained usiag a Cs-137 source.

Characterization Survey Summary Report Page I of 1 03-Dec-04 S

MWH Constructors Plu m~~ ~~ ~ ~ ~

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R e c o D e o m s i n n P r j c

- 0R v s o e e b r 1, 2 0 Plum BrookReactor Decommissioning Project B-80 Revision 0 December 16, 2004

Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS Survey Package Number: Cl 141 21 ICi Package Type:

Structure Survey Area Name:

Reactor Office and Laboratory Building (I 141)

Survey Unit Namc:

First Floor Offices, Lobby. Conference Room, Classroom, Janitor Statistcal Summary

-i t Sej viy a Activity Acivity LLD 3 LLD (dpml100 cm') (dalg/100 cmi (dpml0 cmi (dpm/00 cm2)

Mean:

-0.06 5.31 Mean LLD:

13.85 20.26 Median:

-0.50 4.49 Minimum LLD:

13.85 20.26 Standard DeviatIon:

1.24 4.19 Maximum LLD:

13.85 20.26 Range:

3.50 13.06 Action Level:

0.00 0.00 Minimum:

-0.50

-0.40 TeatPerformed r

Maximum:

3.00 12.68 a

iNumber of Measuremnenta Prescribed:

0 No. Collected a Prescribed Yes Yes Collected:

8 Max LLD 4 50% Action Level No No Measurements > Action Level Yes Yes Measurement Mean > Action Level No Yes No. Measurement > Action Level 1

7 Loose Surface Contamination Results by Sample File, Surface/Material, Room/litem and SML Sample lB Surfacql Oetaf' Room'or

,ML

-

Action Level Yes Collected: 31 Measurement Mean > Action Level Yes Reported: 31 No. Measurement > Action Level 18 Survey Measurement Results by Download File. Surface/Material, Roomlitem and SML Dbnioad ID Sarlce/Detectorl Roomior'~;.LK SampieS Ueas~re 3; ~Grdob; -~Nit eta ret -. b, < Material Count Item Nb, (gCZ)CC-' nt' C ieiit-Bi'te Result (ActLevel-DL090303-001 CL1Gt 802FS 00002 00001 0.50 430 1.107 133 -133 DLO90303-001 FL1C1 802FS 00005 00001 0.50 448 1523 463 -463 DL090303-001 FL1CI 802FS 00007 00001 0.50 425 1,680 738 -738 DL090303-001 FLIGI 802FS 00001 00001 0.50 400 1,044 212 -212 DL090303-001 FL1Gi 802FS 00002 00001 0.50 381 1,080 306 -306 DL090303-001 FLIG1 B02FS 00003 00001 0.50 448 1.193 133 -133 OL090303-001 FLIG1 B02FS 00004 00001 0.50 429 1,091 126 -126 CL090303-001 FLIGI B02FS 00009 00001 0.50 434 1.123 133 -133 OL090303-001 FLIGI B02FS 00010 00001 0.50 454 1,178 86 -88 OL090303-00i FLIGI B02FS 00011 00001 0.50 417 1,115 204 -204 DL090303-001 FLIGi B02FS 0012 00001 0.50 424 928 -16 16 OL090303-001 FLIGI B02FS 00014 00001 0.50 414 1,256 381 -361 OL090303-001 FLiG1 Bo2FS O015 00001 0.50 434 989 0 0 DLC90303-001 FLiG1 B02FS 00016 00001 0.50 425 1,201 251 -251 DL090403-004 FL1Gi B02FS 00013 00001 0.50 S05 1,636 -9 9 DLos0403-004 FLIGI B02FS 00017 00001 0.50 571 1,636 178 -178 DL090303-001 FL1Y1 B02FS 00006 00001 0.50 456 2.709 1,609 .1,609 DL090303-001 FLIY1 B02FS 00008 00001 0.80 469 2,685 1,515 -1,515 GL090303-001 WLIGI B02FS 00008 00001 0.50 437 4,689 3,54 -3,564 DLO90303-001 WUIGI B02FS 00001 00001 0.50 394 974 165 -165 DL090303-001 WU1G1 802FS 00003 00001 0.50 435 793 -204 204 DL090303-001 WU1Gt 802FS 00004 00001 0.50 442 871 -157 157 DLOS0303-001 WUlGI B02FS 00009 00001 0.50 419 809 -110 110 Characterization Survey Summary Report Page 1 of 3 03-Dec-04 MW1H Cornstructors Plum Brook Reactor Decommissioning Project .B-82 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-82 Revision 0 December 16, 2004 Supplemental Characterization Report_ NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Package Number: C1141 213CI Package Type: Structure Survey Area Name: Reactor Office and Laboratory Building (1141) Survey Unit Name: Structural Surfaces, 2nd Floor Offices Survey Measurement Results by Download File, SurfacelMaterial, Roomlitem and $ML -Dou rload~D 8surice' Daectcr3Romg oe -; Saipm, e M^ N' Be'taBl: 'e{s DL090303-001 WU1G1 B02FS 00010 00001 050 427 895 -63 63 DL090303-001 WUIG1 B02FS 00011 00001 0.50 445 864 -181 181 OL090303-001 WUIG1 B02FS 00012 00001 0.50 414 840 -55 55 DL090303-001 WU1G1 B02FS 00014 00001 0.50 392 793 -8 8 DL090303-001 WUIG1 B02FS 00015 00001 0.50 452 919 -212 212 DL090303-001 WU1G1 802FS 00016 00001 0.50 440 784

267 287 DL090403-004 WU1GI B02FS 00013 00001 0.50 478 1,570 579

.579 DL0904034004 WUIG1 B02FS 00017 00001 0.50 573 1,458 -9 9 Download File, Average and/or Single Point (SP) Background Summary DownloadiO $urtace/ DefctcrrRoor. Si4 Bkg Bkgd 'kdg Bet' M akterda l t Countf' IterfSo2-CountTlir ' Co'unts ^"l Count '^' iOn (LC3) y C0 i m) CLC4) ~, DL090303-001 CLIGI B02GS 00002 00001 0.50 124 248 974 DL090303-001 FLICI B02GS 00005 00001 0,50 135 270 1,060 DL090303-001 FLICI B02GS 00007 00001 0.50 121 242 950 DL090303-001 FLIG1 B02GS 00001 00001 0.50 108 212 832 DL090303-001 FL1G1 B02GS 00002 00001 0.50 98 192 754 DL090303-001 FLtGI B02GS W0003 00001 0.50 135 270 1,060 DL090303-001 FL1G1 B02GS 00004 00001 0.50 123 246 988 0L090303-001 FL1GI B02GS 00009 00001 0.50 126 252 989 DL090303-001 FLIGI 802GS 00010 00001 0.50 139 278 1,091 DL090303-001 FLIGI B02GS 00011 00001 0.50 115 232 911 DL090303-001 FL1G1 B02GS 00012 00001 0.50 120 240 942 0L090303-001 FLIGI B02GS 00014 00001 0.50 114 228 895 0L090303-001 FLIG1 Bo2GS 00015 00001 0.50 126 252 989 DL090303-001 FLIGI B02GS 00015 00001 0.50 121 242 950 DL090403-004 FLIG1 B02GS 00013 00001 0.50 176 352 1,845 DL090403-0G4 FL1G1 B02GS 00017 00001 0.50 186 312 1,458 0L090303-001 FL1Y1 B02GS 00008 00001 0.50 140 280 1,099 DL090303-001 FL1Y1 B02GS 00008 00001 0.50 149 298 1,170 DL090303-001 WL1G1 B02GS 00008 00001 0,50 128 256 1,005 DL090303-001 WU1G1 B02GS 00001 00001 0.50 103 205 809 DL090303-001 WU1G1 802GS 00003 00001 0,50 127 254 997 DL090303-001 WU1Gi B02GS 00004 00001 0.50 131 262 1.028 L.090303.001 WU1G1 B02GS 00009 00001 0.50 117 234 919 Characterization Survey Summary Report Page 2 of 3 03-Dec-04 1 MWH Construitors Plum Brook Reactor Decommissioning Project B-83 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-83 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS SurveyPackageNamber: C1141213CI Package Type: Structure Survey Area Name: Reactor Office and Laboratory Building (1141) Survey Unit Name: Structural Surfaces, 2nd Floor Offices Download File, Average andlor Single Point (SP) Background Summary Download I Suf8e( etcto! Rom0"g kgd i D Sd

i.

Bkd Beta 0L050303-001 WU1G1 302GS 00010 00001 0.50 122 244 958 DL0903034001 WUIGI B02GS 00011 00001 0.50 133 268 1,044 DL0903034001 WU1GI B02GS 00012 00001 0.50 114 228 895 DL090303-001 WU1G1 B02GS 00014 00001 0.50 102 204 801 DL090303-001 WU1G1 B02GS 00015 00001 0.50 144 288 1,131 OL090303-001 WU1G1 B02GS 00018 00001 0.50 130 280 1,021 DLO90403-004 WU1G1 B02GS 00013 00001 0.50 106 212 991 DL090403-004 WU1G1 B02GS 00017 00001 0.50 157 314 1,467 Download File, Instrument Summary and Survey Technician DL090303-001 180716 44-116 PR188386 125 0.2038 JPH5419 DL090403)004 180718 44-118 PR187571 125 0.1712 JPH5419 Characterization Survey Summary Report Page 3 of 3 03-Dec.04 4 MWH Constructors Plum Brook Reactor Decommissioning Project .B-84 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-84 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS Survey Package Number: C1141 213C1 Package Type: Structure Survey Area Name: Reactor Office and Laboratory Building (1141) Survey Unit Name: SLructural Surfaces, 2nd Floor Offices Statisitlca l u; 'ary Mkir n M Mean: 19 Mean MDC: 49 Median: 9 Minimum MDC: 29 Standard Deviation: 44 Maximum MDC: 69 Range: 232 Action Level: 0 Minimum:

19 l4 Tes't Peirforred' Maximum:

213 No. Collected 2 Prescribed Yes Number of Measurements '-i>.i Max MDC < 50% Action Level No Prescribed 0 Measurements > Action Level Yes Collected 31 Measurement Mean > Action Level Yes Reported 31 No. Measurement > Action Level 20 Survey Measurement Results by Download File, Surface/Material, Room/Item and SML DownloadID' Suifat~ te I r Room or?" $ SLarni iMaasurge ' Grcss ivi'XAidjta ^ et CL050303-002 CL1G1 A03FS 00002 00001 2.00 65 43 -3 3 DL090303-002 FLIC1 A03FS 00005 00001 2.00 41 96 80 -80 DL090303-002 FLIC1 A03FS 00007 00001 2.00 38 71 S9 -59 OL090303-002 FLIGI A03FS 00001 00001 2.00 50 28 3 -3 DL090303402 FL1Gt A03FS 00002 00001 2.00 47 28 6 -6 DL090303-002 FLIGI A03FS 00003 00001 2.00 55 53 22 -22 DL090303-002 FL1Gt A03FS 00004 00001 2.00 89 34 -19 19 DL09303-002 FL1G1 A03FS 00009 00001 2.00 52 46 19 -19 DL090303-002 FL1G1 A03FS 00010 00W01 2.00 44 28 9 -9 DL090303-002 FL1GI A03FS 00011 00001 2.00 47 31 9 -9 DL0903034002 FL1G1 A03FS 00012 00001 2.00 47 15 -6 6 OL050303-002 FL1GI A03FS 00014 00001 2.00 47 53 31 -31 DL090303-002 FL1G1 A03FS 00015 00001 2.00 44 31 12 -12 OL090303-002 FL1G1 A03FS 00016 00001 2.00 55 25 -6 6 DL090403-003 FL1G1 A03FS 00013 00001 2.00 38 31 18 -18 DL090403-003 FLIGI A03FS 00017 00001 2.00 38 15 3 -3 DL090303-002 FLIYI A03PS 00006 00001 2.00 85 139 93 -93 DL030303-002 FLIYI A03FS 00008 00001 2.00 65 62 15 -15 DL090303.002 WL1GI A03FS 00008 00001 2.00 55 244 213 -213 OL090303-002 WUIGI A03FS 00001 00001 2.00 50 43 19 -19 DL090303-002 WU1G1 A03FS 00003 00001 2.00 55 40 9 -9 DL090303402 WU1G1 A03FS 00004 00001 2.00 67 34 -15 16 OL090303-002 WU1G1 A03FS 00009 00001 2.00 30 28 22 -22 Characterization Survey Summary Report Page 1 of 3 03-Dec.04 MWJH Constructor-Plum Brook Reactor Decommissioning Project .B-8S Revision 0 December 16, 2004 Plum Brook: Reactor Decommissioning Project B-85 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS SurveylPackage Number: C1141213CI Package Type: Structure Survey Area Name: Reactor Office and Laboratory Building (1141) Survey Unit Name: Structural Surfaces, 2nd Floor Offices Survey Measurement Results by Download File, Surface/Material, Room/item and SML Download ID SurfaI AetedtoriR SML l a G oss Net Ah "(Lt4)~ Ty (LCSI

flM6 0L0903034002 WU1G1 A03fS 00010 00001 2.00 44 12

-6 6 L0090303-002 WU1G1 A03FS 00011 00001 2.00 55 22 .9 9 DL090303-002 WU1G1 A03FS 00012 00001 2.00 38 34 22 .22 D0L90303-002 WUtGt A03FS 00014 00001 2.00 47 12 -9 9 OL090303-002 WU1G1 A03FS 00015 00001 2.00 47 9 -12 12 DL090303-002 WU1G1 A03FS 00016 00001 2.00 38 12 0 0 DL090403.003 WU1G1 A03FS 00013 00001 2.00 41 12 -3 3 DL090403-003 WUIGI A03FS 00017 00001 2.00 29 31 24 .24 Download File, Average and/or Single Point (SP) Background Summary towntloadiD Surfaw/ O~tictor/ Rooorn;*- -S1 ad -- 9kgd B-9d sBkd9Alphai .. 'atiedir ~Cint Item No (.C t Trrne Counts i, Coun' Cdpow1007' DL090303-002 CL1G1 A03GS 00002 00001 2.00 15 8 46 0L090303-002 FL1C1 A03GS 00w00 00001 2.00 5 3 15 OL090303-002 FLICI A03GS 00007 00001 2.00 4 2 12 OLo90303-002 FLtG1 A03GS 00001 00001 2.00 8 4 25 D0090303-002 FLiG1 A03GS 00002 00001 2.00 7 4 22 LD090303-002 FL1Gi A03GS 00003 00001 2.00 10 5 31 0L090303-002 FL1G1 A03GS 00004 00001 2.00 17 9 53 DL090303-002 FL1Gi A03GS 00009 00001 2.00 9 5 28 01090303-02 FLIGI A03GS 00010 00001 2.00 6 3 19 DL090303402 FLIG1 A03GS 00011 00001 2.00 7 4 22 OL090303-002 FL1G1 A03GS 00012 00001 2.00 7 4 22 DL090303-002 FLiG1 A03GS 00014 00001 2.00 7 4 22 01090303-002 FLOG1 A03GS 00015 00001 2.00 6 3 19 0L090303-002 FLIGI A03GS 00016 00001 2.00 10 5 31 01090403-003 FLIG1 A03GS 00013 00001 2.00 4 2 12 DL090403.003 FLIGI A03GS 00017 00001 2.00 4 2 12 DL090303-002 FL1Y1 A03GS 00006 00001 2.00 15 8 46 0L090303-002 FL1Y1 A03GS 00008 00001 2.00 15 8 46 DL090303-002 WL1G1 A03GS 00008 00001 2.00 10 5 31 0L090303-002 WUIGI A03GS 00001 00001 2.00 8 4 25 DL090303-002 WU1GI A03GS 00003 00001 2.00 10 5 31 DL090303-002 WU1G1 A03GS 0004 00001 2.00 16 8 49 DL090303-002 WU1G1 A03GS 00009 00001 2.00 2 1 6 Characterization Survey Summary Report Page 2 of 3 03-Dec.04 ( MWH Constructors Plum Brook Reactor Decommissioning Project B-86 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-86 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS Survey Package Number: C1141 213C1 Package Type: Structure Survey Area Name: Reactor Office and Laboratory Building (114 ) Survey Unit Name: Structural Surfaces, 2nd Floor Offices Download File, Average and/or Single Point (SP) Background Summary downioad0D SurlFace ---- trTRo o OS5cB-vBkgd BkgF 13kigA 1a -M1iar oit(et4.e~) >~~fm on atun (epc1o - (L~3) Tyke P.5 7 ) P DL090303-002 WUG1S A03GS 00010 00001 2.00 6 3 12 0L090303-002 WU1Gi A030S 00011 00001 2.00 10 5 31 DL090303-002 WU1GI A03GS 00012 00001 2.00 4 2 12 DL090303-002 WUiGi A03GS 00014 00001 2.00 7 4 22 DL090303-002 WU1GI A03GS 00015 00001 2.00 7 4 22 DL090303-002 WUIGI A03GS 00016 00001 2.00 4 2 12 OL090403-003 WU1Gi A03GS 00013 00001 2.00 5 a 15 DL090403.003 WUIGi AO3GS 00017 00001 2.00 2 1 6 Download File, Instrument Summary and Survey Technician DaI'tMOS S debr&~ fArea 2 U~hjiri DL090303-002 180731 43-90 PRt88390 125 0.1295 BAO8661 DL090403-003 180715 43-90 PR18S389 125 0.1307 JPW4121 Characterization Survey Summary Report Page 3 of 3 03-Dec-04 ( MW34 Constructors Plum Brook Reactor Decommissioning Project B-87 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-87 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS Survey Package Number: C1141 213CI Package Type: Srructure Survey Area Name: Reactor Office and Laboratory Building (1141) Survey Unit Name: Scructural Surfaces. 2nd Floor Offices a Activity 3 Activity a LLD , LLD (dpmMOO cm') (dpm/100cmrn (dpml100cmm) (dpm/100cm') Mean: Median: Standard Deviation: Range: Minimum: 0.92 0.20 2.49 8.66 -0.20 3.32 40.01 6.14 19.97 -3.34 Mean LLD: 14.82 20.01 Minimum LLD: 14.82 20.01 Maximum LLD: 14.82 20.01 Action Level: 0.00 0.00

A<,~~~~t

.4 ,,4"' S TitP ne--' Maximum: &46 18.63 a -Number of Measurerents3 Prescribed: 0 No. Collected 2 Prescribed Yes Yea Collected: 31 Max LLD < 50% Action Level No No Measurements > Action Level Yes Yes Measurement Mean > Action Level Yes Yes No. Measurement > Action Level a 14 Loose Surface Contamination Results by Sample File, Surface/Material, Room/item and SML CS090303-006 CL1 L01 NIA CL1 2 1 -0.20 14.82 6.65 20.01 CS090303-003 FLI Lo1 N/A FL1 10.1 -0.20 14.82 6.65 20.01 CS090303-003 FL1 L01 NIA F'LP11 0.20 14.82 16.63 20.01 CS090303-003 FL1 LOt NIA Ft 11.1 -0.20 14.82 -0.01 20.01 CS090303-003 FL1 L01 NIA FL1 12-1 -0.20 14.82 -0.01 20.01 CS090303-003 FL1 L01 NIA FL1 14-1 -0.20 14.82 -0.01 20.01 CS09030-03 FL1 L01 N/A FLI 15-1 .0.20 14.82 -3.34 20.01 CS090303-03 FLI L01 N/A FL1 16.1 -0.20 14.82 3.32 20.01 CS090303-003 FL1 L01 N/A FL1 2.1 -0.20 14.82 -3.34 20.01 CS090303-003 FL1 L01 N/A FL1-4-1 -020 14.82 16.63 20.01 CS090303.003 FL1 L01 N/A FP1 5-1 4.13 14.82 3.32 20.01 CS090303-003 FL1 1.01 NIA FL1 6-1 8.46 14.82 -0.01 20.01 CS090303-003 FL1 L31 NIA FL1 7-1 4.13 14.82 -3.34 20.01 Characterization Survey Summary Report Page 1 of 2 03-Dec.04 (aMWH Constructors Plum~~~~~~~~~~~~~~~~~~ Bro.eco eomsinn rjc -8Rvso eebr1,20 Plum Brook Reactor Decommissioning Project B-88 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS SurveyPackage Number: C1141 213C1 Package Type: Structure Survey Area Name: Reactor Office and Laboratory Building (1141) Survey Unit Name: Structural Surfaces. 2nd Floor Offices CS090303-003 FLI L01 N/A FLI 8-1 4.20 14.82 6.65 20.01 CS090303-003 FLI L01 NMA FL1 9-1 -0.20 14.82 6.65 20.01 CS090303-003 FLI L01 N/A FL1.3.1 -0.20 14.82 -3.34 20.01 CS090403-003 FLl L01 N/A FL1 13-1 4.13 14.82 9.98 20.01 CS090403-003 FL1 L01 N/A FL1 17-1 -0.20 14.82 -0.01 20.01 CS090303-005 WL1 L01 N/A WL1 8-1 -0.20 14.82 6.65 20.01 CS090303-004 WU1 LOt N/A WU1 10-1 -0.20 14.82 -3.34 20.01 CS090303-004 WU1 L01 N/A WU1 1-1 4.13 14.82 -3.34 20.01 CS090303-004 WU1 L01 N/A WU1 11-1 40.20 14.82 -0.01 20.01 CS090303-004 WU1 L01 N/A WU1 12-1 -0.20 14.82 -0.01 20.01 CS090303-004 WU1 L01 N/A WU1 14-1 -0.20 14.82 3.32 20.01 CS090303-004 WU1 L01 N/A WU1 18-1 8.46 14.82 -0.01 20.01 CS090303-004 WU1 L01 N/A WU1 16-1 -0.20 14.62 6.65 20.01 CS090303-004 WU1 L01 N/A WU1 4-1 -0.20 14.82 18.63 20.01 CS090303-004 WU1 L01 N/A WU1 9.1 -0.20 14.82 13.30 20.01 CS090303-004 WU1 L01 N/A WUI-3-1 -0.20 14.82 -0.01 20.01 CS090403-004 WU1 L01 NMA WU1 13-1 .0.20 14.82 -0.01 20.01 CS090403-004 WU1 L01 N/A WU1 17-1 -0.20 14.82 -0.01 20.01 Characterization Survey Summary Report Page 2 of 2 03-Decr04 (a MWUH Constructors Plum Brook Reactor Decommissioning Project B-89 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-89 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS SurveyPackageNumber: C1141 215CI Package Type: Structure Survey Area Name: Reactor Office and Laboratory Building (1141) Survey lnit Name: ROLB Roof & Exterior Walls (Rev. 0) ~ don Oat f-, e Mean: 783 Mean MDC: 370 Median: 685 Minimum MDC: 293 Standard Deviation: 650 Maximum MDC: 452 Range: 2,413 Action Level: 0 Minimum: -72 .Test Perfomed-Maximum: 2.340 No. Coliected 2 Prescribed Yes Number of Meaisrements Max MDC c 50% Action Levei No Prescribed: 0 Measurements > Action Level Yes Collected: 32 Measurement Mean > Action Level Yes Reported: 32 No. Measurement > Action Level 31 Survey Measurement Results by Download File, Surface/Material, Roomiltem and SML w loiiad iD Suaricef etectcr7 Room'or-SM MNi o e Casare Gircss heiB0ta r fst, Materil Cout ternN& (L)*~ ~ ite Rsult,(~~v1 DL041004-003 8E181 B02FS 00001 00001 1.00 444 2,853 929 -929 DL041004-003 8E1B1 802FS 00001 00002 1.00 433 2,627 800 -800 DL041004-OC3 BE1Bt B02FS 00001 00003 1.00 452 2,818 822 -622 DLD41004-03 3E1B1 802FS 00001 00004 1.00 443 3,013 1,093 .1,093 0L041004403 3E181 802FS 00001 00005 1.00 308 951 49 -49 DL041004-003 BE1e1 802FS 00001 00008 1.00 443 2,738 822

822 DL041004-003 BE1B1 BD2FS 00001 00007 1.00 440 2,938 1,044

-1,044 DL041004-003 3E1B1 802FS 00001 00008 1.00 436 2,89 1.031 -1,031 DL041118-001 BE1B1 802FS 00001 00009 1.00 385 2,822 1,387 -1,387 DL041118C001 3E1Bi 802FS 00001 00010 1.00 384 2,858 1,427 -1,427 DL041118-001 BE1B1 B02FS 00001 00011 1.00 388 2,920 1,458 -1,458 DL041118-001 BE1B1 BO2FS 00001 00012 1.00 367 2,954 1,887 -1,567 DL041020-005 RF1G1 B02FS 00002 00001 1.00 377 1,443 120 -120 DL041020-005 RFIG1 B02FS 00002 00002 1.00 384 2,144 775 -775 DL041021-003 RF1G1 B02FS 00002 00003 1.00 293 1,148 291 -291 DL041021-003 RFIGI BC2FS 00002 00004 1.00 329 1,693 595 -495 DL041021-003 RF1G1 B02FS 00002 00005 1.00 299 1,026 131 -131 DL041021-003 RF1G1 B02FS 0002 00008 1,00 348 1,672 439 -439 DL041021-003 RF1G1 802FS 00002 00007 1.00 319 1,178 152 -152 DL041021-003 RF1G1 802FS 00002 00008 1.00 311 1,402 431 -431 DL041122-003 RFIGI 802FN GRIT2 SUB09 1.00 2,340 2,340 -2,340 DL041122-003 RF1G1 302FN GRIT2 SUB10 1.00 2,034 2,034 -2,034 DL041122-003 RF1GI B02FN GRIT2 SUB11 1.00 2,200 2,200 -2,200 Characterization Survey Summary Report Page 1 of 3 03-Dec-04 1 MWH Constructors Plum Brook Reactor Decommissioning Project B-90 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-90 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS SurveyPackageNumber: C1141 215CI Package Type: Structure Survey Area Name: Reactor Office and Laboratory Building (1141) Survey Unit Name: ROLB Roof & Exterior Walls (Rev. 0) Survey Measurement Results by Download File. SurfacelMaterlal, Roomlitem and SML Dowloa ID' Gcs~"'et Beta lie"Tst ie~, urlDte bf Row*6"PL avir e t k DL041122-003 RF1G1 B02FS 00002 TOPOI 1.00 356 2,289 1,009 -1,009 DL041122-003 RF1G1 B02FS 00002 TOP03 1.00 349 1,417 187 .187 DL041122-003 RFIG1 802FS 00002 TOP05 1.00 358 1,221 -72 72 DL041122-003 RFtG1 ao2FS 00002 TOP07 1.00 335 1,374 247 -247 DL041122-003 RFtGI B02FS 00003 00001 1.00 357 1,796 511 -511 DL0411224003 RF1G1 B02FS 00003 00002 1.00 374 1,804 391 .391 DL041122-003 RF1G1 B02FS GRIT2 TOPOG 1.00 342 1,434 260 -260 DL041122-003 RF1G1 Bo2FS GRIT2 TOPtO 1.00 336 1,340 209 .209 DL041122-003 RF1G1 B02FS GRIT2 TOP11 1.00 349 1,523 294 -294 Download File, Average andhor Single Point (SP) Background Summarv 'Download ID' Surfaci'Det~tr/ Room o S*9XMtpm; Bild Bkgd '^ -- kgd 8'kdj Bei'- DLO41004-003 BE1B1 B02GS 00001 00001 1.00 433 433 1,924 DL041004-003 BE1B1 802GS 00001 00002 1.00 411 411 1,827 DL041004403 BE181 B02GS 00001 00003 1.00 449 449 1,995 DL041004-003 BE1B1 B02GS 00001 00004 1.00 432 432 1,920 DL041004-003 BE1B1 802GS 00001 00006 1.00 203 203 902 DL041Wt-003 SE1B1 B02GS 00001 00006 1.00 431 431 1,918 DL041004-003 BE1B1 802GS 00001 00007 1.00 426 426 1,893 DL041004-003 BE181 BU2GS 00001 00008 1.00 418 418 1,858 DL041118-001 BE1BI B02GS 00001 00009 1.00 323 323 1,436 DL041118-001 BE1B1 B02GS 00001 00010 1.00 322 322 1,431 DL041118-001 8E1B1 32GS 00001 00011 1.00 329 329 1,462 DL041118-001 BE131 B02GS 00001 00012 1.00 292 292 1,298 DL041020-005 RF1G1 802GS 00002 00001 1.00 287 287 1,323 DL041020-005 RF1G1 B02GS 00002 00002 1.00 297 297 1,369 DLp410214003 RF1G1 B02GS 00002 00003 1.00 203 203 857 DL041021-003 RFIG1 B02GS 00002 00094 1,00 260 260 1,098 DL041021-003 RF1G1 802GS 00002 00005 1.00 212 212 895 DL0410214003 RFIGI B02GS 00002 00006 1.00 292 292 1,233 DL041021-003 RF1GI 802GS 00002 0007 1.00 243 243 1,026 DL0410214003 RF1G1 B02GS 00002 00008 1.00 230 230 971 DL041122-003 RF1G1 B02GS 00002 TOP01 1.00 301 301 1,281 DL0411224003 RF1G1 8026S 00002 TOPO3 1.00 289 289 1,230 Characterization Survey Summary Report Page 2 of 3 03-Dec.04 i WVH Constructors Plum Brook Reactor Decommissioning Project B-91 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-91 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT BETA MEASUREMENT RESULTS Survey Packagc Number: C1141 215C1 Package Type: Structure Survey Area Name: Reactor Office and Laboratory Building (1141) Survey U; nit Name: ROLB Roof & Exterior Walls (Rev. 0) Download File, Average and/or Single Point (SP) Background Summary Download iD &rfficr,/ Dete'ctorl Rcomorn-c-2.;SiLJ Okd 8i SgBkgd Bkdg Bte't' ~ MaiM"oup itm'~'2~(tC~ Cuntl'ne Cu~tz~C unt '"'tlv ooort. 0L041122-003 RF1G1 BO2GS 00002 TOPO5 1.00 304 304 1,294 DL041122-003 RF1G1 802GS 00002 TOPF7 1.00 265 265 1,128 DLC411224003 RFtG1 802GS 00003 00001 1.00 302 302 1,285 DL041122-003 RFIGI B02GS 00003 00002 1.00 332 332 1,413 DL041122-003 RF1G1 802GS ORIT2 TOPO9 1.00 276 276 1.174 DL041122-003 RFIGI BO2GS GRIT2 TOPIO 1.00 266 266 1.132 DL041122-003 RF1G1 802GS GRIT2 TOP11 1.00 209 289 1.230 QC Survey Measurement Results by Download fib1, Surface/Material, Room/ktem and SML Donloa iD 'suffcI DetiC m/ ~ -sanpo '4e@ire'o 5Grs NetBeta ~Tost

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n1'N2~LC Cout ~ihen ~ ~ `~Resiylt (ActL44e-DL041004-004 BE181 8020S 00001 00001 1.00 409 2,525 802 -802 DL041021-005 RF1GI 8024S 00002 00007 1.00 303 1,345 430 -430 DLO410214005 RFIG1 B02QS 00002 00006 1.00 319 1.460 443 -443 QC Download File, Average and/or Single Point (SP) Background Summary -~ ~ ~ ~ `7 loii: iD Sur t-t-co'iS M, ~' '" ' -Bk *.-; -'-g - '0 -B W -- eta Q~~odI u~~e~o cr~ S

k~

kgk4 d B8kr. eta DL041004-004 BE1B1 B02PS 00001 0001 t.00 408 408 1,722 DLC41021-005 RF1G1 BC2PS 00002 00007 1.00 215 215 915 DL041021-005 RF1G1 302PS 00002 00008 1.00 239 239 1.017 Download File, Instrument Summary and Survey Technician DL041004-003 189088 44-116 PR197315 125 0.18 CEN8425 DL041004-004 192608 44-116 PR197314 125 0.1895 DRM0271 0L041020-006 193707 44-116 PR203147 125 0.1735 TDG7534 DL041021-003 192608 44-116 PR197314 125 0.1895 TDG7534 DLC41021-005 189094 44-116 PR197312 125 0.180 JGS8492 DL041118-001 189088 44-118 PR197315 125 0.18 PAM7843 DL041122-003 203473 44-116 PR197312 125 0.186 TDG7534 Characterization Survey Summary Report Page 3 of 3 03-Dec-04 (a MPAWH Constructors Plum Brook Reactor Decommissioning Project B-92 Revision 0 December 16, 2004 Plum Brookc Reactor Decommissioning Project B-92 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Onio DIRECT ALPHA MEASUREMENT RESULTS Survey Package Number: C1141 215Cl Package Type: Sructiure Survey Area Name: Reactor Office and Laboratory Building (1141) Survey Unit Name: ROLB Roof & Exterior Walls (Rev. 0) StafstloalSummary 4 Measurementy8eiif f viy Mean: 59 Mean MDC: 39 Median: s9 Minimum MDC: 25 Standard Deviation: 30 Maximum MDC: 75 Range: 91 Action Level: 0 Minimum: 17 Test Perormed Maximum: 107 No. Collected a Prescribed Yes Number o1 Measurements Max MDC c 50% Action Level No Prescribed 0 Measurements > Action Level Yes Collected 7 Measurement Mean > Action Level Yes Reported 7 No. Measurement > Action Level 7 Survey Measurement Results by Download File, SurfacelMaterlal, Room/item and SML a I Cea~eGrs NetAlpi Tet Maelter Cont itemr No. (LC Con manjint A-Xpha 'R-i (ctyr 'irt DL041105-017 BE13t A03FS 00001 00004 1.00 53 41 33 -33 OL0411054017 BE1B1 A03FS 00001 00007 1.00 25 17 17 -17 DL041105417 BEtBI A03FS 00001 00008 1.00 25 83 83 -83 DLC41118-002 BE181 A03FS 00001 00009 1.00 75 68 59 -59 DL041118-002 3EtB1 A03FS 00001 00010 1.00 29 107 107 -107 DL041118-002 BE181 A03FS 00001 00011 1.00 29 59 59 -49 DL041118-002 BE1B1 A03FS 00001 00012 1.00 29 59 59 -s9 Download File, Average and/or Single Point (SP) Background Summary o i lDa' rial Coiirit 'tem 'g. Ekgd r< B irgd BkdgAlpha .w DL041105-017 BE181 A03GS 00001 00004 1.00 1 1 8 DL041105-017 BE181 A03GS 00001 00007 1.00 0 0 0 DL041105-017 BE1B1 A03GS 00001 00008 1.00 0 0 0 DL041118-002 BE1B1 A03GS 00001 00009 1.00 1 1 10 DL041118-002 BE1B1 A03GS 00001 00Q10 1.00 0 0 0 DL041118-002 BE1B1 A03GS 00001 00011 1.00 0 0 0 DLO41118-002 BE1B1 A03GS 00001 00012 1.00 0 0 0 Characterization Survey Summary Report Page 1 of 2 03-Dec.04 ( MVVHiConstructors Plum Brook Reactor Decommissioning Prolect .8-93 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-93 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio DIRECT ALPHA MEASUREMENT RESULTS SurveyPackage Number: C1141 215CI Package Type: Structure Survey Area Name: Reactor Office and Laboratory Building (1141) Survey Unit Name: ROLB Roof & Exterior Walls (Rev. 0) QC Survev Measurement Results bv Download File, Surface/Matertal, RoomIltem and SML -,iwrioadlD Surfac-e Dete cforfx § orn S Saj r ZW Ttst IIa- :` 'Material rbut ti No (kCt)-.un 'rnent 'lh~elt Riut DL04110 -015 3E1B1 A03QS 00001 00004 1.00 57 69 52 -52 QC Download File. Average andlor Sinale Point (SPI Backaround Summary Surface) De'-teor-/' ik:A pbI Dwla D matei al Counts temh-No-J-6..i~f Cohunts Cut rrp10ar (LC3) .Typ'q n -~ cp) OL041105-015 SE1BI A03PS 00001 00004 1.00 1 1 7 Download File, Instrument Summary and Survey Technician -~ ~ 'etectorra L-Sre Do~t~ D rM2S50~s s~dl ~ r~i2 ,f:canc "Tecrn DL041105-015 203469 43-90 PRI88387 125 0.10825 TEM5552 OL041105-017 180718 43'90 PRt88388 125 0.0985 SLM2556 DLD41118-002 192608 43-90 PR203396 125 0.082 JG88492 Characterization Survey Summary Report Page 2 of 2 03-Dec44 MJt'JlIA Constructors Plum~~ ~ ~ Bro eco eomsinn rjc -4Rvso eebr1,20 Plum Brook Reactor Decommissioning Project B-94 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMINATION MEASUREMENT RESULTS SurveyPackageNumber: C1141 215C1 Package Type: Structure Survey Area Name: Reactor Office and Laboratory Building (1141) Survey Unit Name: ROLB Roof & Exterior Walls (Rev. 0) .- 4<' Ststical Summaryt M Senslthtj 2 a Actavty PActivIty a LLO , LLD (dpmll00 cmJ (dpm/100 cm2) dR_(dpml100 cm2_pmI100 cm') Mean: 0.51 8.74 Mean LLD: 12.33 16.77 Median: -0.21 8.20 Minimum LLD: 12.27 16.39 Standard Deviation: 1.46 8.02 Maximum LLD: 12.65 17.12 Range: 3.62 20.07 Action Level: 0.00 0.00 Minimum: '0.33 -2.07

Teat,

= erormd Maximum: 3.29 18.00 a 'Numnbir Ot' Measu'remnents Prescribed: O No. Collected a Prescribed Yes Yes Collected: 18 Max LLD c 50% Action Level No No Measurements > Action Level Yes Yes Measurement Mean ; Action Level Yes Yes No. Measurement > Action Level 4 17 Loose Surface Contamination Results by Sample File, Surface/Material, Room/Item and SML .L MateialCout Itm N: (C8).~pi100~rn2 (dni/00 bn'}(dpr~ 00 cm2) (dprri/10O cm' CS041116-041 BE1 L01 1 BE 1-1 3.13 12.27 1.13 17.12 CS041116-041 BE1 L01 I BE 1-2 3.13 12.27 10.71 17.12 CS041116-041 BE1 LO0 1 BE 1-3 -0.26 12.27 7.52 17.12 CS041116-041 BE1 L01 1 BE 1-4 40.26 12.27 -2.07 17.12 CS041116-041 BE1 L01 1 BE 1-5 40.26 12.27 1.13 17.12 CS041116-041 BE1 L01 1 BE 1.6 -0.26 12.27 4.32 17.12 CS041116-041 SE1 L01 t BE 1-7 -0.26 12.27 7.52 17.12 CS041116-041 BE1 LOt 1 BE 1-8 3.13 12,27 13.91 17.12 CS041021-001 RF1 L01 2 RF2-1 4.21 12.31 18.00 16.39 CS041021-001 RF1 L01 2 RF2.2 40.21 12.31 4.93 16.39 CS041021-001 RF1 L01 2 RF2-3 -0.21 12.31 8.20 16.39 CS041021-001 RF1 L01 2 RF2-4 3.29 12.31 14.73 10.39 CS041021-001 RF1 L01 2 RF245 -0.21 12.31 8.20 16,39 Characterization Survey Summary Report Page 1 of 2 MVWH Constructors 03-Dec-04 Plum Brook Reactor Decommissioning Project B-95 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-95 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio REMOVABLE CONTAMITNATION MEASUREMENT RESULTS SurveyPackageNumber: C1141215C1 Package Type: Structure Survey Area Name: Reactor Office and Laboratory Building (1141) Survey t nit Name: ROLB Roof & Exterior Walls (Rev. 0) CSO41O21-001 RF1 L01 2 RF2-6 -0.21 12.31 14.73 16.39 CS041021-001 RF1 L01 2 RF 2-7 -021 12.31 1.67 16.39 CS041021-401 RF1 Lo1 2 RF2-8 -0.21 12.31 11.47 16.39 CS041123-050 RF1 L01 N/A 3-1 -0.33 12.65 14.04 16.86 CS041123-050 RF1 L01 N/A 3-2 -0.33 12.65 17.23 16.86 Characterization Survey Summary Report Page 2 of 2 03-Dec-04 (a MVH Constructors Plum Brook Reactor Decommissioning Project B-96 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-96 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky. Ohio GAMMA SPECTRAL ANALYSIS RESULTS Survey Package Number: C1141 215CI Packagc Type: Structure Survey Area Name: Reactor Office and Laboratory Building (I 14 1) Survey Unit Namc: ROLB Roof & Exterior Walls (Rev. 0) Ceo0 (pal/g) _Cs-37 (pCitg) Unity Test Mean: NtA 1.769E-01 0.04 Median: N/A 1.788E-01 0.04 Standard Deviation: NIA 1.380E-02 0.01 Range; NtA 3.001E-02 0.02 Minimum: N/A 1.600E-01 0.03 Maximum: NUA 1.900E-01 0.06 z o >s---s b-. e n ty lesrnen~niv ~. Co-60 (pClg) __Cs-137 (pCV19) Mean MDC: 1.491E-01 1.042E-01 Minimum MDC: 1.129E-01 7.364E-02 Maximum MDC: 2.151E-41 1.402E-01 Action Level: 3.80 11.71

~~~~~~'r;-7 i

Numnber0 t

i lauenet ~ M:- -s-1 C,--5>:-,< Co-5R01(g) Cs-137 (pCilq) Prescribed: 0 O Collected: 4 4 Positve Results: 0 4 Co-GO (pCi/g) Cs-137 (pCilg) Unity Test No. Collected ? Prescribed Yes Yes Max MDC < 10% Action Level Yes Yes Meaaurementa > Action Level No No No Measurement Mean > Action Level NIA No No No. Measurement > Action Level a 0 0 Gamma Soectral Analvsis Results bv Sampia File. Surface/Material. RoomIltem and SML Sample i~ Surfacf Detetomori n-SM pl e.S -tfa sG0 .17 -1 i8Tf w CS041022-001 RF1 L11 2 N/A 10t.8 1.235E-01 1.861E-01 8.060E-02 CS041022-002 RFt L11 2 NIA 115.8 1.123E-01 1.600E-01 7.364E-02 CS041022403 RF1 11 2 N/A 60.8 2.151E-01 1.714E-01 1.402E4-1 CS041022-004 RF1 L11 2 N/A 90.4 1.447E-0 1.90oE-ol 1.225E-01 Characterization Survey Summary Report Page 1 of 2 07-Dec-04 G iAH Constructors Plum~~~~~~~~~~~~~~~~ Bro Reco Deomsinn.rjc -7Rvso eebr1,20 Plum Brook Reactor Decommissioning Project B-97 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMIUISSIONING Sandusky, Ohio GAMMA SPECTRAL ANALYSIS RESULTS Survey Package Number: Cl 141 215CI Package Type: Structure Survey Area Name: Reactor Office and Laboratory Building (1141) Survey Unit Name: ROLB Roof & Exterior Walls (Rev. 0) I For smears counted by gamma sprstral analysis (SampleWedgst= 1 g) the actual reporting unils are Total Activity In pCi. Legend. Yellow - 0.9 to 9.9X AL Other Plant Derived Radlonuelides Identified Sarspie-l Ng-94 [Ag-lOim -E 1> N-234' l u-f9; E-Ar241 l Cis-243 Cm-245 I(pcrfai IpCIg) (pclu) ( l/g) (pci) (pCI/13) l (pC-LC(/) CS041022-4c1 1.134E-01l 2.328E+00 l 2.84E-1 MOC l4,66BEa02 l .0OE+00 l l 3.44. t-: CS041022-002 2.404E+00 moo-l l l 2.&W-w0 CS041022-003 ll C041022-004 I .,ouIc~-J CharacterizatIon Survey Summary Report Page 2 of 2 07-Dec-04 ( ltWhIi Constructors Plum Brook Reactor Decommissioning Project B-98 Revision 0' December 16, 2004 Plum Brookc Reactor Decommissioning Project B-98 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA MEASUREMENT RESULTS SurveyPackageNumber: A250030111 Package Type: Environ Survey Area Name: Outside Perimeter Fence Survey Unit Name: Outside Perimeter Fence - Environs - SU1 (Rev. 0) 'Staticat Summauy (contac) 'Statistical Summariy(1 Imetr) ry Mean: Median: Standard Deviation: Range: Minimum; Maximum: 9.16 Mean: 7.76 Median: 2.87 Standard Deviation: 9.65 Range: 6.12 Minimum: 15.77 Maximum: 8.42 7.70 2.16 8.51 6.27 14.78 Contact Survey Measurement Results by Download File, Surface/Material, Roomiltern and SML -0o.wn to ad 'i O S u rf o P e i ctd r gi i i-oi ' - F - - SM L.. a f i g e f E x i' a re DL041021-009 LASi G01FN 00001 0001 7,242 7.0 DL041021-009 LAUS1 G01fN 00001 00002 7,975 7.8 DL041021-009 LAISI GOFN 00001 00003 7,528 7.3 DL041021t009 LAISI GOFN 00001 00004 7,291 7.1 DL041021-009 LAtSI GOtFN 00001 00005 8,944 8.8 DL041021-009 LA1S1 GO0FN 00001 00006 6,911 6.7 DL041021-009 LAIS1 G01FN O001 00007 6,287 6.1 DL041021-009 LA1Si GOFN 00001 00008 7,085 6.9 DL041021-009 LA1Si GOFN 00001 00009 7,092 6.9 DL041021009 LAISI GO1FN 00001 00010 7,370 7.2 DL041021-009 LA1SI G01FN 00001 O0011 11,753 11.4 DL041021-009 LA1SI G01FN 00001 00031 9,814 9.8 DL041022-05 LAISI G01FN 00001 00012 10,252 10.0 DL041022-005 LAISI GOiFN 00001 00013 13,373 13.0 DL041022-005 LAIS1 GOFN 00001 00014 10,343 10.1 DL0410224005 LAiS1 G01FN 00001 00015 8.735 8.5 DL041022-005 LAIS1 G01FN 00001 00016 8,055 7.8 DL041022-005 LA1SI G01FN 00001 00017 8.430 8.2 DL041022-005 LAU Si G01FN 00001 00018 7.520 7.3 DL041022-005 LAISI G01FN 00001 00019 7,285 7.1 DL041022-005 LA1SI G01FN 00001 00020 7,119 8.9 DL041022-005 LAIS1 G01FN 00001 00021 7,452 7.3 DL0410224005 LAIS1 GOFN 00001 00022 8,040 7.8 DL041022-005 LAISI G01FN 00001 00023 7,029 6.8 DL041022-005 LA1S1 G01FN 00001 00026 7,822 7.6 DL041022-005 LAIS1 GOFN 00001 00027 8,196 8.0 DL0410224005 LAIS1 GOIFN 00001 00028 7,886 7.7 DL0410224005 LA1SI G01FN 00001 00029 7.000 6.8 Investigation Survey Summary Report Page 1 of 3 03-Dec-04 ( MWHI Constructors Plum Brook Reactor Decommissioning Project B-99 Revision 0 December 16, 2004 Plum Brook Reactor D ecom missilo ning Project B-99 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky. Ohio GAMMA MEASUREMENT RESULTS Survey Package.Number: A2500 30111 Package Type: Environ Survey Area Name: Outside Perimeter Fence Survey Unit Name: Outside Perimeter Fence - Environs - SUI (Rev. 0) DL041022-05 LAU15 G01FN 00001 00030 7,078 6.9 DLO41026-001 LA1S1 G01FN 00001 00024 13,673 13.4 DL041026-001 LAISI GOIFN 00001 00025 12.404 12.1 DL060904-001 LA1S1 GO1FN 00001 00052 15.462 15.5 DLO60904-001 LAISI G01FN 00001 00053 12.443 12.4 OL060904-001 LAUS1 GO1FN 00001 00054 15,771 15.8 DL060904-001 LAISI G0tFN 00001 00055 13,208 13.2 DL050904-001 LA1Si GOIFN 00001 00056 13,981 14.0 DL0S0904-001 LAIS1 GOlFN 00001 00057 13,771 13.8 1 Meter Survey Measurement Results by Download File, SurfacelMaterlal, Roomrltem and SML DL0410214009 LA151 G02FN 00001 00001 8,773 6.6 DL041021-009 LA1SI G02FN 00001 00002 7,321 7.1 DL041021-009 LA1S1 G02FN 00001 00003 7,256 7.1 DLO41021-009 LA1Sl G02FN 00001 00004 6,954 8.8 OL041021-009 LA151 G02FN 00001 00005 6,679 8.5 DL0410214009 LA1SI G02FN 00001 00006 6,724 6.5 OL041021-009 LA1Si G02FN 00001 00007 6,440 6.3 OL041021-009 LA151 G02FN 00001 00008 B,596 6.4 DLO410214009 LAUSI G02FN 00001 00009 6,691 6.5 DLD41021-009 LAUS1 G02FN 00001 00010 86863 6.7 DLO41021-009 LAUS1 G02FN 00001 00011 10,286 10.0 DLO41021-009 LAIS1 G02FN O0001 00031 8,405 8.2 DLO410224005 LA1S1 G02FN 00001 00012 9,509 9.3 0L041022-005 U1A5l Go2FN 00001 00013 11,318 11.0 DL0410224005 LAUSI G02FN 00001 00014 9,952 9.7 DL041022-05 LAISI G02FN 00001 00015 8,563 8.3 DL041022-005 LA1S1 Go2FN 00001 00016 8,222 8.0 DL041022-005 LA1S1 GO2FN 00001 00017 S,067 7.9 DL041022-005 LA1S1 G02FN 00001 00018 7.501 7.3 DLO41022-005 LA1S1 GO2FN 00001 00019 7,031 6.8 DL041022-006 LA1S1 GO2FN 00001 00020 6,667 6.5 DL041022-005 LA1S1 G02FN 00001 00021 7,203 7.0 DLO410224005 LA1S1 G02FN 00001 00022 8,1S3 7.9 DL041022-005 LA1S1 G02FN 00001 00023 6.952 6.8 DL041022.005 LA1S1 G02FN 00001 00026 7,914 7.7 DL041022-005 LA15S G02FN 00001 00027 7,396 7.2 OL041022-005 LA1S1 G02FN 00001 00028 8,353 8.1 DLO41022-00s LA1St G02FN 00001 00029 6,736 6.6 Investigation Survey Summary Report Page 2 of 3 03-Dec-04 G MUH Constructors Plum Brook Reactor Decommissioning Project .8-100 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-100 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA MEASUREMENT RESULTS Survey Package Number: A2500 30111 Package Type: Environ Survey Area Name: Outside Perimeter Fence Survey Unit Name: Outside Perimeter Fence - Environs - SU I (Rev. 0) DL041022-005 LA151 G02FN 00001 00030 6,718 6.5 0L041026-001 LA1S1 G02FN 00001 00024 15,118 14.8 DL041026-001 LAUS1 G02FN 00001 00025 12,606 12.3 DL050904-001 LA1SI G02FN 00001 00052 11,206 11.2 DL060904-001 LAUSI G02FN 00001 00053 10.796 10.8 DL060904-001 LAISI G02FN 00001 00054 11,257 11.3 DLo60904-001 LA1S1 G02FN 00001 00055 11,356 11.4 DL060904-001 LAUSI G02FN 00001 00056 11,774 11.8 DL060904-001 LAUS1 G02FN 00001 00057 10,766 10.8 Download File, Instrument Summary and Survey Technician Do'm"'a '.r

rvey DKlaD M

§5 N DetMbde De~rSN ClFc~ <~i DL041026-001 193707 44-10 PR198931 6.14E+10 PAM7843 DL041022-005 203470 44-10 PR196941 6.16E+10 RDF6510 DL041021-009 203470 44-10 PR196941 6.16E+10 PAM7843 DL060904-001 180715 44-10 PR188344 6.OOE+10 JPW4121

The Gamma Cal Factor uied to convert the coants per minute into an exposure rate was obtained using a Cs-137 source.

Investigatlon Survey Summary Report Page 3 of 3 03-Dec.04 MWIH Constructors Plum Brook Reactor Decommissioning Project B-101 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-101 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky. Ohio GANIMA SPECTRAL ANALYSIS RESULTS Survey Package Number: A2500 301II Package Type: Environ Survey Area Name: Outside Perimeter Fence Survey Unit Name: Outside Perimeter Fence - Environs - SUI (Rev. 0) Stattdilcal Su a Co-60 (pcyg) Cs-137 (pCQg) Unity Test Mean: 6.5X5E-01 2.105E+00 019 Median: 2.878E-01 2.869E-01 0.03 Standard Deviation: 7.930E-01 4.03SE+00 0.36 Range: 4.567E+00 1.897E+01 1.58 Minimum: 3.250E-02 1.158E-01 0.02 Maximum: 4.587E+00 1.908E+01 1.60 .. i i.. \\- A'\\ f"- .-c-..y-..'easurimeintSe-nsitivity R->L<::--4;,s,-- Co-60 (pC-Lg) Cs-137 (pCi/g) Mean MDC: 4.386E-02 6.366E-02 Minimum MDC: Z833E-02 1.847E-02 Maximum MDC: 7.182E-02 1.241E-01 Actlon Level: 3.80 11.71 -3.-i 9o.Numibe o'fleasueasaenlans'.-:,o__- . 2-,'-' Co-SO_ (pC1) Cs-137 (pCi/g) Prescribed: 0 0 Collected: 37 37 Posltve Results: 17 37 Co 60 (pCi/p) Cs-137 (pCi/g) Unity Test No. Collected 2Prescribed Yes Yes Max MDC c 10% Action Level Yea Yes Measurements > Action Level Yes Yes No Measurement Mean > Action Level No No No No. Measurement > ActIon Level I 1 3 Gamma Snectral AnalvsIs Results by Samnle File. Surface/Material. Roomiltem and SML ' Satnip'l'e ID' Sutrfd 'Dcor oom c'r'ML.5§i~imwla'"Co: CsC~0O Ct13 Unity' CS04102-001 SAl L04 1 1 311.5 4.198E-02 2.037E-01 5.476E-0202 CS041025-002 SAl L04 1 2 337.4 8.293E-02 3.876E-02 1,887E-01 2.527E-02 CS041025.003 SA1 L04 1 3 388 3.371E-02 3.417E-01 4.859E-02 CS041025-004 SAl L04 1 4 382.5 3.250E-02 3.419E-02 2.724E-01 6.45SE-02 Cs041025-005 SAl L04 1 5 405.5 3.225E-02 3.350E-01 3.6482-02 investigation Survey Summary Report Page 1 of 6 07-Dec.04 MWH-Construc~tors Plum Brook Reactor Decommissioning Project B-102 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-102 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA SPECTRAL ANALYSIS RESULTS Survey Package Number: A2500 30111 Package Type: Environ Survey Area Name: Outside Perimeter Fence Survey Unit.Name: Outside Perimeter Fence - Environs - SUI (Rev. 0) Gamma SPectral Analysis Results by Sample File. SurfacelMateriall Roomiltem and SML Sampbe ID Surfarce Dete;torJ R~oot or;................. >hL-ample o-0-6 Ca 137 Cs fG-37 Unity~ Maan t erla Count item No. (LC8) ^Weigjht Result. MDC R esult-MOC Test-CS041025-006 SAt L04 1 6 386.3 3.385E-02 4.186E-01 4.324E-02 CS041025-007 SAl L04 1 7 431.6 2.833E-02 2.358E-01 1.847E-02 CS041025-008 SA1 L04 1 8 401.7 3.256E-02 2.710E-01 4.807E-02 CS041025.009 SAl L04 1 9 384.9 3.584E-02 3.787E-01 4.377E-02 CS041025-010 SAt L04 1 10 369.7 3.537E-02 2.328E-01 8.602E-02i CS041025-011 SAt L04 1 11 368.6 1.149E+00 6.404E-02 2.082E+OO 8.907E-02 2 CS041025-012 SA1 L04 1 31 390 1.018E-01 3.353E-02 1.158E-01 5.977E-02 CS041025-013 SA1 L04 1 12 315.5 2.878E-01 6.309E-02 2.009E+00 4.191E-02,- 0S041025-015 SAl L04 1 13 326.6 5.568E-01 6.114E-02 7.115E+00 9.567E-02 CS041025-016 SAl L04 1 14 326.2 3.519E-01 3.935-E02 2.227E+00 8.602E-02 CS041025-017 SAl L04 1 15 310.6 5.5916-02 4.211E-02 1.882E-01 6.070E-02 CS041025-018 SA1 L04 1 16 323.3 4.045E-02 1.940E-01 4.235E-02 CS0410254019 SAt L04 1 17 304.1 4.301E-02 2.703E-01 6.350E-02 GS041025-020 SA1 L04 1 18 338 3.869E-02 2.021E-01 5.439E-02 CS041025-022 SAl L04 1 19 319.6 4.092E-02 2.922E-01 5.851E-02M CS041025-023 SAl L04 1 20 318.6 4.105E-02 2.532E-01 5.243E-02 CS041025-024 SAt L04 1 21 310.1 4.217E-02 2.987E-01 7.966E602 CS041025-025 SAl L04 1 22 333.2 3.925E-02 1.761E-01 4.678E.02 C0541025-026 SAl L04 1 23 311.5 1.022E-01 4.198E-02 2.869E-01 8.907E-02 3 CS041025-027 SAl L04 1 26 316.8 5.825E-02 4.128E-02 2.266E-01 5.803E4-02 CS041025-028 SA1 L04 1 27 318 5.190E-02 2.877E-01 4.777E-02 CS041025-029 SA L04 1 23 320.4 4.082E-02 2.530E401 7.275E-02U M CS041025-030 SA1 L04 1 29 352.1 3.714E-02 2.313E-01 5.130E-02 CS041025-031 SAt L04 1 30 386 3.388E-02 1,860E601 4.763E-02 CS041026-001 SAl L04 1 25 288 4.573E-02 3.845E-01 7.893E-02 CS041026-002 SA1 L04 1 24 356.6 1.464E-01 3.6676-02 2.7106-01 5.287E-02 Investigation Survey Summary Report Page 2 of 6 07-Dec-04 GMWH Construrtors Plum~ Bro Reco Deomsinn Prjc -0 eiin eebr1,20 Plum Brook Reactor Decommissioning Project B-103 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA SPECTRAL ANALYSIS RESULTS Survey Package Number: A2500 30111 Package Type: Environ Survey Area Name: Outside Perimeter Fence Survey Unit Name: Outside Perimeter Fence - Environs - SU I (Rev. 0) Gamma Soectral Analvsis Results by Samole File, Surfaca/Material, Room/litem and SML Sample D uSureDl eCf $Co- >Cst7 7 nit --Watria 'Count Itemn No.(C~1/igr e~f DC Rs"it MD Test "(O) Type (LOS) (g1)- 'JACLW) 1PCIW) '(p041' Cl/9) ),,',(-.'C,4-- CS061004-001 SA1 L04 1 52 297 1.278E+00 7.070E-02 1.908E+01 1.066E-01 1.97 CS061004-002 SA1 L04 1 53 297.2 2.302E-01 6.017E-02 3.835E+00 6.497E-02, CS061004-003 SA1 L04 1 54 349.5 6.629E-01 6.395E-02 6.997E+00 7.320E-02m m CS061004-004 SAl L04 1 55 315.7 8.478E-01 7.182E-02 9.114E+00 9.701E-02 1.00 CS061004.005 SAl L04 1 56 296.2 6.322E-01 4.415E-02 7.665E+00 1.092E-41j CS061004-006 SA1 L04 1 57 281 4.567E+00 4.6854E-02 1.071E+01 1.241E-01 2.12 QC Gamma Spectral Analysis Results by Sample File, Surface/Material, Room/Item and SML Maera Cwi tb,1e02L ,gh' Vi~t~ MDO; R.iit MDC -Test CS041025-014 SAl Q01 1 12 299.7 2.674E-01 4.364E-02 2.306E+00 8 E2422Ef2fa CS041025-021 SAl Q01 1 18 363,4 5.265E-02 2.464E-01 4.971E-02 i 'Forsmwarv4countedbygamina spetral tnalysis (SampleWmglht-I gitbcactual reportingunitsareTotal Activityin pCi. Legend - _M Yellow - 0.9 to 9.9X AL Other Plant Derived Radlonucildes Identifled Sample D Nb-94 A64108m If Of-t 6 2 T-'-4 U 235 Am-241 Cm243 Cm-245 i CS041025-001 CS041025-002 13712.00 i

Cat, I

1.213E-+O CS041025-003 2.235E-2 j 1192E+00 DC 2 E35E-02 1.151E+l0 CS041025-004 1.442E+0! Investigation Survey Summary Report Page 3 of 6(@ iM/lWH Constructors 07-Dec04C Plum Brook Reactor Decommissioning Prolect B-104 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-104 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA SPECTRAL ANALYSIS RESULTS Survey Package Number: A2500 30111 Package Type: Environ Survey Area Name: Outside Perimeter Fence Survey Unit Name: Outside Perimeter Fence - Environs - SU1 (Rev. 0) Other Plant Deriyed Radlonuclides Identified Sample jD I Nbo4 I Ag-I1O-i E -iC5 i U-235 Am-245 Ivd (pc() (ps 01g 4C s (p() (eC1g) (p01(g) CS041025-005 i 1,13iEe00 1 748E-01 1MC l i l j 9.473E-4? l _.27___ 01_! _ ii j CS041025-0D6 jl_100E+03l j i CS041025-007 i 9.40GE-01 M DC.> j iE ___ I _l_j CS041025-008 .320E-00 l 1.199E-01 bDCO .117Eo0 l t.337E-01 [ CS041025-009 1 319E+00 l 2.468E-01 MOC J.

0890 2.064E-014 CS041025-010 1

j292E+00 l2940E-01 WCD 1.23l2+00 3.490E01 CS04102641 1 j j437E 3.279E41 Maco j j l l1352E-00 3,762E-01j_ CS041025-012 0.018.42 M EO00 MOC 9.211E401 l CS041025-013 j j j1 3+ l! YONo jJ 1.082E+00 CS041025-015 j 512SE-0l 9.ss6E41 M04

2.l90041 t.3SEo0o CS041025-015 j

1.7t4E+00 1.254E-1l IHO"' I I lE. 0,l 1.530E41l CS041025-017 j 1.478E+.0 Wc' J 7.4W5E.00 I CS041025-01 8 CS041025-019 i CS041025-020 1l.766E-02 I j l 050E+00 3.005E-01 MOCC 2.713E-02 ! l.127E+00 3.700E40 1 CS041025-022 0 1339E+0O uoC 1 1.08WE.0O Investigation Survey Summary Report Page 4 of 6 07-Dec-04 G JiV-I Constructors Plum Brook Reactor Decommissioning Project B-lOS Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-105 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GATMMA SPECTRAL ANALYSIS RESULTS Survey Package Number: A2500 30111 Package Type: Environ Survey Area Name: Outside Perimeter Fence Survey Unit Name: Outside Perimeter Fence - Environs - SUI (Rev. 0) Other Plant Derived Radlonuclides Identified. Saizmple: IP Nb-AgC687 Eu-i52 I. U4 Th-234 1U-235 im-24iCm-243 Cm-245'

='s.;4 lt-)I

,.U)S~P A,.I~f S.0. I {PCI -~~.)S Pif.g...t728 CS041025-023 l 493E0Ol ACDC l l1.297E+00 j CS0410254024 1 l l1 2S0E+O00 NDC-l l.275E+00 CS041025402S5 f l f d24 NDC I l 3.261E-0tl CS041025-026 1.190E.00 l NOM j j 1.2852-00 [ CS04102S427 j 13ddEtOO DC l 1.7OE+I00 CS041025-028 1.852E200 Mac.' 11.4415+00 t CS041025-029 1.09CE+0OO NOCo 1.083E+00 CS041025-030 7.835E01 CS041025-031 1.288E+00 AWC D .069E+OC CS041026-001 1341E. C 00 OC j1.524E100 CS041026-002 NfDC _Il_ I CS0610044001 l4.509E-1 9.772E41 l ll2E868E41 NDC l-1,458E-01 3.7'7E-01 _l 2.707E-01 CS061004-002 3.704-01 MffDC-ff 1.505E47 CS061004-003 1 751 E-01 3;477E401 1.072El00 T MDC-, 1.002E401 l1.082E401 l l1.5655E+l0 CS081004-004 2.254E-01 5.897E.01 1.418E+00 OOCi 9.218E-02! 7375E-01 1.586E+00 CS061004-005 ! 2.041E-01 Z103E401 1,222E-00 1.508E-01 AMDC l 1.092E t 1.4se-01 l115E+00 2.0165E01 Investigation Survey Summary Report Page a of 6 07-Dec-04 ( MWH Constructors Plum Brook Reactor Decommissioning Project .8-106 Revision 0 December 16, 2004 Plum Brook Reactor Decommissioning Project B-106 Revision 0 December 16, 2004 Supplemental Characterization Report NASA PLUM BROOK REACTOR FACILITY DECOMMISSIONING Sandusky, Ohio GAMMA SPECTRAL ANALYSIS RESULTS Survey Package Number: A2500 30111 Package Type: Environ Survey Area Name: Outside Perimeter Fence Survey Unit Name: Outside Perimeter Fence - Environs -SU 1 (Rev. 0) Other Plant Derived Radi nueiides Identified Sample iD lNbI 4 A AQN4 rn e a ° 2 uc I Ain-241 cn^,243 1Cm245I -pCit) (pCfg) (p0V4, I') (PC/g(pCpCUI (9 (PClIg)r (PCU' 0861004.008 1.593E-01 1920E-01 4.375E01 12.144ECO t/DCo .35BE-01 1.352C-01 t5 O0192-1 ! .925+0I Investigation Survey Summary Report Page 6 of 6 07-Dec-04 (MWHJI Constructors Plum Brook Reactor Decommissioning Project B-i 07 Revision 0 December 16, 2004 Pluwm Brook Reactor Decommissioning Project B-107 Revision 0 December 16, 2004

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