ML042950099

Trojan Nuclear Plant Final Survey Reports Turbine Building and Control Building Interiors, Volume 1 of 2

ML042950099
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Site:	Trojan File:Portland General Electric icon.png
Issue date:	10/12/2004
From:	Portland General Electric Co
To:	NRC/FSME
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Trojan Nuclear Plant Final Survey Reports Turbine Building and Control Building Interiors Volume 1 of 2

Final Survey Report Turbine Building and Control Building Interiors Portland General Electric

TROTAN FIkAL SURVEY REPORT-TiIRBIN & CONTROL. BUILDING INTFRIORS TABLE OF CONTENTS EXECUTIVE

SUMMARY

....................... v

1. INTRODUCTION ....................... 1-1 1.1 PURPOSE AND SCOPE .1-1

1.2 DESCRIPTION

.1-1 1.3 SITE RELEASE CRITERIA .1-2 1.3.1 APPLICATION OF THE SITE RELEASE CRITERIA .1-2 1.3.2 DERIVED CONCENTRATION GUIDELINE LEVEL .1-2

2. FINAL SURVEY DESIGN ..................... 2-1 2.1 SURVEY UNITS .. 2-2.1.1 CLASSIFICATION .2-1 2.1.2 SURVEY UNIT SIZE..........................................................................................2-1 2.1.3 IDENTIFICATION NOMENCLATURE .2-2 2.2 INSTRUMENTATION .. 2-2 2.2.1 PORTABLE INSTRUMENTATION .2-2 2.2.2 LABORATORY INSTRUMENTATION .2-4 2.3 SURVEY METHODS .. 2-5 2.3.1 SCAN MEASUREMENTS .2-5 2.3.2 STATIC MEASUREMENTS .2-6 2.3.3 SUPPLEMENTAL MEASUREMENTS .2-7 2.3.4 MEASUREMENT LOCATION IDENTIFICATION .2-7 2.4 SURVEY PERFORMANCE .. 2-8 2.4.1 SAMPLE HANDLING .2-8 2.4.2 DATA INVESTIGATION .2-8 2.4.3 DATA RECORDING .2-8 2.4.4 DATA MANAGEMENT .2-9 2.4.5 QUALITY CONTROL MEASUREMENTS .2-9 2.4.6 PROCEDURES .2-10 2.4.7 TECHNICAL BASIS DOCUMENTS .2-10 2.4.8 CONTROL OF VENDOR SUPPLIED SERVICES .2-11 2.4.9 TRAINING .2-11

3. FINAL SURVEY RESULTS ....................... 3-1 3.1 TURBINE BUILDING INTERIOR.. 3-1 i

TROJAN FNMA. SUR VEY REPORT- TURBIFN& CONTROL.BUILDfNG INTERIORS 3.2 CONTROL BUILDING INTERIOR............................................................................... 3-2

4. DATA ASSESSMENT .......................................... . 4-1 4.1 DATA VERIFICATION AND VALIDATION . .4-1 4.1.1 DATA QUALITY .4-1 4.1.2 GRAPHICAL DATA REVIEW .4-2 4.1.3 BASIC STATISTICAL COMPARISONS .4-2 4.2 SATISFACTION OF THE SITE RELEASE CRITERIA . .4-4 4.2.1 CONDITION #1-MEAN TEST .4-4 4.2.2 CONDITION #2 - ELEVATED MEASUREMENT COMPARISON 4-4 4.2.3 CONDITION #3 - SIGN TEST .4-4 4.2.4 CONDITION #4 - ALARA EVALUATION .4-5

5. FINAL SURVEY CONCLUSION ......................................... 5-1

6. REFERENCES....................................................................................................................... 6-1 APPENDIX A - SURVEY PREPARATION ACTIVITES....................................................... A-1 APPENDIX B - SURVEY UNIT

SUMMARY

REPORTS - TURBINE BUILDING INTERIOR .................................... B-1 APPENDIX C - SURVEY UNIT

SUMMARY

REPORTS - CONTROL BUILDING INTERIOR .................................... C-l ii

TROAN FINAL SURVEY REPORT- TURBINE & CONTROL BUILDING INTERIORS TABLES Table Title Table 2-1 Summary of Operational Survey Data Table 2-2 Final Survey Procedures Table 3-1 Summary of Final Survey Results Table 4-1 Satisfaction of Conditions for Site Release iii

TROJAN FIMAr. St4R VEY REPORT- TURRINEP & CONTROL RUILDING INTFRIORS FIGURES Figure Title Figure 1-1 Trojan Plant Layout Figure 3-1 Turbine Building - Elevation 27' and 35' Figure 3-2 Turbine Building - Elevation 45' Figure 3-3 Turbine Building - Elevations 63' and 69' Figure 3-4 Turbine Building - Elevation 93' Figure 3-5 Control Building - Elevation 45' Figure 3-6 Control Building - Elevation 61' Figure 3-7 Control Building - Elevation 77' Figure 3-8 Control Building - Elevation 93 and 105' iv

TROJlAN FINA L. SURVEY REPORT-TURBINE & CONTROL BUIlDING INTRFORS EXECUTIVE

SUMMARY

This report presents the results and conclusions of the final survey conducted by Portland General Electric Company of the Turbine and Control Building interiors. These buildings adjoin one another and are located adjacent to the Auxiliary and Containment Buildings. Contaminated plant systems, components, and structural surfaces were removed or otherwise remediated as part of the decommissioning process. A final survey of remaining equipment and structural surfaces within the Turbine and Control Buildings was performed (embedded pipe and remaining plant systems are addressed separately). Final survey data collection began in July 2002 and was completed in August 2004.

The final survey was performed in accordance with the final survey process described in PGE-1061, "Trojan Nuclear Plant Defueled Safety Analysis Report and License Termination Plan (PGE-1078)," referred to as the LTP. The equipment and structural surfaces within the Turbine and Control Buildings were divided into 48 survey units, encompassing 52,420 square meters of surface area, and classified according to their potential for containing residual radioactivity. Nine survey units were classified as Class 1, 10 survey units as Class 2, and 29 survey units as Class 3. Survey data were collected from each survey unit according to data collection patterns and frequencies established for each classification. Scan measurements were performed over approximately five percent of the entire surface area and a total of 1,483 static measurements were collected as final survey data. In addition, 1,363 supplemental removable surface radioactivity measurements were collected.

The final survey data demonstrate that each survey unit meets the radiological criteria for unrestricted use specified in 10 CFR 20.1402. Based on the results of the final survey, Portland General Electric Company concludes the Turbine and Control Building interiors meet the regulatory requirements for release to unrestricted use.

v

TROJAN FINAL SURVEYREPORT- TURBINE & CONTROL RUILDING INTFR!OR.

1. INTRODUCTION 1.1 PURPOSE AND SCOPE This report presents the results and conclusions of the final survey of the Turbine and Control Building interiors. It provides the informiation required by 10 CFR 50.82(a)(I 1), which demonstrates that the Turbine and Control Building interiors meet the radiological criteria for unrestricted use specified in 10 CFR 20.1402. This report also documents the final survey was performed in accordance with the final survey process described in PGE-1061, "Trojan Nuclear Plant Defueled Safety Analysis Report and License Termination Plan (PGE-1078)," hereinafter referred to as the LTP.

1.2 DESCRIPTION

The Turbine and Control Buildings, shown in Figure 1-1, adjoin one another and are found near the center of the industrial portion of the plant site adjacent to the Auxiliary and Containment Buildings. Their respective interior surface areas are shown in the following table.

Interior Surface Area Surfaces Area m Turbine Building 40,707 Control Building 11,713 Total Surface Area: 52,420 The Turbine Building is located west of the Containment and Control Buildings. It houses the plant's secondary side components, including the turbine generator, condenser, and feedwater equipment.

The Control Building is located between the Auxiliary and Turbine Buildings. It houses the main control room, cable spreading room, computer and telephone rooms, RP offices, and served as the primary access area for the Radiologically Controlled Area.

The Turbine and Control Building interiors were prepared for final survey by a series of decommissioning activities, including radiological characterization, limited dismantlement and remediation, and turnover to final survey. A general description of these activities is given in Appendix A. Detailed decommissioning information as well as a brief radiological history is contained in the LTP, Section 3. Radiological characterization data were gathered and analyzed.

The results guided decisions regarding the need for, extent of, and most effective means of remediation. Contaminated equipment, components, and structural surfaces were removed for disposal or remediated, as needed, and then systematically turned over for final survey. An assessment of the operating and radiological history established the initial classification of Turbine and Control Building areas. In their post-final survey configuration, the Turbine and Control Building interiors remain largely as they existed during operations; however, contaminated areas have been remediated and left in a bare configuration.

1-1

TRO JAN El MA I. SURVEY REPORT- TUMRINE & CONTROL BUILDING INTFRIORS 1.3 SITE RELEASE CRITERIA The site release criteria applied to the final survey of the Turbine and Control Building interiors correspond to the radiological criteria for unrestricted use given in 10 CFR 20.1402, which are:

1. Dose Criterion: The residual radioactivity that is distinguishable from background radiation results in a Total Effective Dose Equivalent (TEDE) to an average member of the critical group that does not exceed 25 mrem/yr, including that from groundwater sources of drinking water; and

2. ALARA Criterion: The residual radioactivity has been reduced to levels that are as low as reasonably achievable (ALARA).

1.3.1 APPLICATION OF THE SITE RELEASE CRITERIA Levels of residual radioactivity that correspond to the allowable radiation dose and ALARA levels of the site release criteria were derived by analysis of various scenarios and pathways (e.g., direct radiation, inhalation, ingestion) through which exposures could occur. These derived levels, referred to as Derived Concentration Guideline Levels (DCGLs), form the basis for the following four conditions which, when met, satisfy the site release criteria:

1. The average residual radioactivity above background is equal to or below the DCGL;

2. Individual measurements, representing small areas of residual radioactivity which exceed the DCGL, do not exceed the elevated measurement comparison DCGL;

3. Where one or more individual measurements exceed the DCGL, the average residual radioactivity passes the Sign statistical test; and

4. Remediation is performed where it is ALARA to reduce the levels of residual radioactivity to below the concentrations necessary to meet the DCGLs.

The manner in which these conditions were met is described in Section 4.2.

1.3.2 DERIVED CONCENTRATION GUIDELINE LEVEL The residual radioactivity concentration levels on equipment and structural surfaces remaining in the Turbine and Control Buildings were compared to a gross activity DCGL of 21,000 dpm/100 cm 2 . Areas within the Control Building which were located inside the main Radiologically Controlled Area (RCA) were compared to a gross activity DCGL of 7,500 dpm/100 cm2 . The gross activity DCGLs were derived for surface residual radioactivity and developed using the methodology described in the LTP, Section 4.2.3, based on the radionuclide-specific screening DCGLs given in the LTP, Table 4-1.

1-2

TROJA N FINAl. NURVEYREPORT-TURBINE & CONTROL RUILDING INTERIORM 1.3.2.1 Primary-to-Secondary System Leakage Gross Activity DCGL The gross activity DCGL of 21,000 dpm/100 cm 2 was developed for application to structures where the principal contamination mechanism would have been from primary-to-secondary system leakage. Samples were collected from representative structures or components associated with the secondary system where the radioactivity detected would be due to primary system leakage into the secondary system. The samples were used to establish the radionuclide distribution of surface residual radioactivity. The samples were sent to an offsite laboratory for analysis and the laboratory results were used to calculate a gross activity DCGL value for each sample.

Several radionuclides of interest were detected in each of the samples. The single radionuclide detected in all the samples was 137 Cs. It accounted for the highest activity concentration, ranging from 83 to 99% of the total activity, in all but one of the samples. In that one sample, 63 Ni had the highest activity concentration and 137 Cs accounted for only 31% of the total activity. For all samples, alpha emitters were either not detected by sample analysis or were detected at activity concentrations that are insignificant in terms of dose contribution.

For purposes of calculating the DCGL, radionuclides of interest that were not detected were assumed present at their minimum detectable concentration (MDC). At their MDC, none of the radionuclides exceeded 10% of their respective screening DCGLs and therefore were not included in the DCGL calculation. There was some variability in relative radionuclide fractions when one sample was compared to another. Therefore, the most conservative calculated value, 21,000 dpm/100 cm2, was selected as the gross activity DCGL. The radionuclide distribution assumed for this DCGL is shown in the following table.

Primary-to-Secondary System Leakage Gross Activity DCGL Radionuclide Distribution Acti Surface Activity Fraction DCGL Dose Radionuclide raction ccrmGL Fraction/ a Contribution

~~cenn dm10C2 CLFractionDGL of DCGL (inre/y) 60Co 1.14E-01 7.1E+03 1.60E-05 0.335 8.4 37Cs 8.86E-01 2.8E+04 3.17E-05 0.665 16.6 Totals: 1.OOE+00 4.77E-05 1.000 25.0 Notes

'This value is calculated by dividing the Activity Fraction/DCGL value for the radionuclide by the sum of the Activity FractionfDCGL values for all the radionuclides.

1.3.2.2 Radiologically Controlled Area (RCA) DCGL The gross activity DCGL of 7,500 dpmn100 cm 2 was developed primarily for application to interior surfaces of the Auxiliary Building and related RCAs. Samples from nine locations were collected to conservatively represent the radionuclide distribution found on the interior surfaces of the Auxiliary Building. The sample locations were not biased towards any particular group of Auxiliary Building systems, rooms, or elevations. Sample locations were randomly selected from a population of areas on the floors and walls in the Auxiliary Building where fixed surface contamination was detected. The samples were collected prior to remediation and sent to an l-3

TROJAN RIVA SUtRVEY REPORT- TURRINE & CONTROL. RutIL DING INTERMOR offsite laboratory for analysis. The laboratory results were used to calculate a gross activity DCGL value for each sample.

Several radionuclides of interest were detected in each of the samples. The two radionuclides detected in all the samples were 63 Ni and 13 7 Cs. They accounted for the highest activity concentrations, ranging from 76 to 100% of the total activity, in all but one of the samples. In that sample, 3H had the highest activity concentration of 49%, compared to 44% for 63 Ni and 137 Cs combined. For all samples, alpha emitters were either not detected by sample analysis or were detected at activity concentrations that are insignificant in terms of dose contribution.

For purposes of calculating the DCGL, radionuclides of interest that were not detected were assumed present at their minimum detectable concentration (MDC). They were included in the DCGL calculation where their MDC exceeded 10% of their respective screening DCGLs. There was some variability in relative radionuclide fractions when one sample was compared to another. Therefore, the most conservative calculated value, 7,500 dpm/100 cm2 , was selected as the gross activity DCGL. The radionuclide distribution assumed for this DCGL is shown in the following table.

RCA Gross Activity DCGL Radionuclide Distribution Surface Activity DCGL Dose Radionuclide Activity Screening DCGL Fraction/ Fraction Contribution Fraction (dpni/100DCGL Fcto of DCGL (mrem yr) 3H 0.007 1.2E+08 5.57E-1 1 <0.001 <0.1 14C 0.015 3.7E+06 3.94E-09 <0.001 <0.1 60 Co0.146 7.1E+03 2.06E-05 0.154 3.9 U3 Ni 0.207 1.8E+06 1.15E-07 0.001 <0.1 9°Sr 0.003 8.7E+03 3.63E-07 0.003 <0.1 0.611 2.8E+04 2.1813-05 0.163 4.1 23°Pu <0.001 3.OE+01 7.83E-06 0.058 1.0 z39n40pU <0.001 2.8E+01 5.59E-06 0.041 1.0 2 41 Pu 0.009 8.8E+02 9.89E-06 0.073 1.8

' 4 Am 0.001 2.7E+01 5.2013-05 0.388 9.7 24 3 iz44Cm 0.001 3.9E+01 1.60E-05 0.119 3.0 Totals: 1.000 --- 1.34E-04 1.000 25.0 Notes

'This value is calculated by dividing the Activity FractionfDCGL value for the radionuclide by the sum of the Activity Fraction/DCGL values for all the radionuclides.

1-4

TROJAN FINAL SURVEY REPORT- TMRBINE & CONTROLk UILDING INTERIORS Figure 1-1 Trojan Plant Layout 1-5

TROJA FTAT. SUR VEYRFPORT- TURBINE & CONTRO. BURIMDING INTERMORS

2. FINAL SURVEY DESIGN The final survey was designed and performed-as described in the LTP, Section 4. The Data Quality Objectives (DQO) process was used to ensure that the final survey results were of sufficient quality to support the final decision. The Turbine and Control Building interiors were divided into survey units of proper size, which were categorized and classified according to the type and potential of residual radioactivity. Instrumentation and survey methods, appropriate to the type of radiation being measured, were used to collect scan, static, and supplemental measurements. The measurements were collected in accordance with administrative and quality controls instituted to provide assurance of accurate results.

2.1 SURVEY UNITS The Turbine and Control Building interiors were divided into 48 survey units based on the physical characteristics, the potential for elevated residual radioactivity, and the size of the area with similar potential for residual radioactivity. The survey units were categorized as structures with surface residual radioactivity, where the building occupancy dose model is applied.

2.1.1 CLASSIFICATION Survey units were classified as Class 1, Class 2, or Class 3 based on the potential for residual radioactivity. Areas with residual radioactivity that exceeded the DCGL prior to remediation were divided into nine Class 1 survey units. Areas with residual radioactivity detectable above background levels, but that did not exceed the DCGL prior to remediation, were divided into 10 Class 2 survey units. Areas with residual radioactivity not expected to be detectable above background levels were divided into 29 Class 3 survey units.

The classification process incorporated the working hypothesis that all areas had a potential for residual radioactivity above the DCGL. This initial assumption meant that a survey unit was initially considered Class 1 unless a basis for classification as Class 2 or Class 3 was identified.

Early in the final survey planning process, little or no characterization data were available.

Elevated radiation levels from contaminated surfaces, components, and equipment prevented the collection of meaningful radiological data. Some surfaces were physically inaccessible. During the course of decommissioning, the contaminated components and equipment were removed, surfaces were made accessible, and a substantial amount of characterization data was collected.

The data, summarized in Table 2-1, showed that these areas could be properly classified as Class 2 or Class 3. This approach was consistent with that described in the LTP, in which areas are initially considered Class 1 areas unless a basis for classification as Class 2 or Class 3 is identified. Both scan and static measurement data collected during final survey confirmed the classification decisions made.

2.1.2 SURVEY UNIT SIZE The Turbine and Control Building interiors were divided into survey units ranging in size from 3 to 8,926 M2 . Survey units were sized to ensure that survey data points were relatively uniformly distributed among areas of similar potential for residual radioactivity. Survey units were 2-1

TROJAN FINAL SURVEY REPORT- TURRBNE & CONTRO . RUUJ)DING INTERIORS designed to have relatively simple shapes unless an unusual shape was appropriate for the operational history of the area. Where possible, existing building characteristics such as horizontal and vertical structural supports, walls, and rooms were used to define the boundaries of the survey units.

Class 1 survey units were 102 m2 in floor area or less; Class 2 survey units were 1,052 m2 in floor area or less. Class 3 survey units were limited by practical considerations.

2.1.3 IDENTIFICATION NOMENCLATURE Each survey unit was identified by a seven-digit identification code. The first digit represents the survey unit category. A single category code, S, for structure with surface residual radioactivity, was used. The next two digits represent the reference map identification code. For the Turbine Building, "02" was used; for the Control Building, "06" was used. The next three digits represent the plant elevation. Where the survey unit was other than a floor surface, this number represents the plant elevation from which the survey unit was accessed. The last digit is an alpha sequential survey unit designator that was assigned in sequential order of the survey unit being created. The following figure illustrates the survey unit identification code for the 2 nd survey unit beginning at Elevation 63' of the Turbine Building.

Survey Unit Identification Nomenclature Category Code Plant Elevation/System (alpha) Number (numeric)

S 0 2 0 6 3 B I - T Reference Map ID Survey Unit Code (numeric) Designator (alpha) 2.2 INSTRUMENTATION Portable and laboratory instrumentation capable of detecting the radiation types and energies of interest were selected, calibrated, and maintained for final survey data collection. Commercially available radiation detection and measurement instrumentation was selected based on reliable operation, detection sensitivity, operating characteristics, and expected performance in the field.

Radioactive sources used for calibration purposes are traceable to the National Institute of Standards and Technology (NIST).

2.2.1 PORTABLE INSTRUMENTATION Scan and static surface radioactivity measurements were performed using the Ludlum Model 2350-1 data logging survey meter with one of three types of Ludlum detectors: gas-flow proportional (GFP), Geiger-Mueller (G-M), or beta scintillation. The following table gives the model number and a description of the detectors used.

2-2

TROJAN FINAL. SURVIY RFPORT- TURBINE & CONTROL RUII.flYNG INTERIORS Portable Instrumentation Radiation Detectors Ludlum Detector Model 43-68 43-68(S)a 44-9 44-116 Detector Type GFP G-M Scintillation Radiation of Interest beta, gamma beta, gamma beta Measurement Type scan, static scan, static static Detector Area 126 cm 2 15 cm 2 126 cm" Window Thickness 0.8 mg/cm2 1.7 mg/cm" 1.2 mg/cm' Window Material mylar mica mylar Background (cpm)b C 210 to 290 30 to 40 220 to 440 Instrument Efficiency (cnts/dis)c 0.39 to 0.45 0.16 to 0.24 0.33 to 0.37 Source Efficiency (cnts/dis) 0.50 0.30 0.50 0.50 Total Efficiency (cnts/dis)c 0.20 to 0.23 0.12 to 0.14 0.08 to 0.12 0.17 to 0.19 Count Time (min) 1 1 1 1 Static MDC (dpm/100 cm2 )C 300 to 350 500 to 580 1,850 to 2,920 340 to 470 Scan MDC (dpm/100 cm2 )c, 690 to 820 1,150 to 1,370 5,740 to 9,460 N/A Notes a (S) denotes detector used with concrete scabbled surface source efficiency.

b Background count time is 1 minute.

c A range of values is given where multiple detectors were used.

d Scan MDC assumes 5 cm/sec scan rate and 7.5 cm detector width, for an equivalent count time of 0.025 min.

2.2.1.1 Calibration and Maintenance Survey instruments were calibrated for the radiation types and energies of interest. The following table provides typical information on the calibration sources used.

Typical Portable Instrumentation Calibration Sources Source Radiation Source Radio- Source 27r Surface Description of Interest Geometry nuclide Activity Emission Rate Acrylic-backed, w/0.9 lox 15 cm 99 23,000 6,800 mg/cm2 mylar cover plate Tc dpm fl/min/100 cm2 Stainless steel-backed beta 4.1 cm dia. 99Tc 20,000 12,000 P/min electroplated Tc metal b disk _ dpm Radionuclide mixture ratios and varying energies were accounted for during calibration by using a calibration source with a conservative average energy as compared to the weighted average energy of the radionuclide mixture.

A total efficiency was established for GFP and G-M detectors used to survey the smooth surfaces. The total efficiency is the product of the instrument efficiency and the source (or surface) efficiency for a specified survey geometry or measurement technique. The instrument efficiency, i.e., the ratio between the net count rate of the instrument and the 27r surface emission rate of a radiation source, was determined by counting the source with the detector in a fixed 2-3

TROJAN PFMIA L SIRVEYREPORT- TURRINE & CONTROL RUlLDING INTERIORS position from the source (reproducible geometry). Ajig was used to create the reproducible geometry and a source to detector distance of I cm was normally used. A value of 0.5 was used for the source efficiency for smooth surfaces; a value of 0.3 for concrete scabbled surfaces.

These values were established based on beta energies of the expected radionuclide distribution and on surface geometry considerations. The source efficiency for beta particle emission is the ratio between the number of radiation particles emerging from the measurement surface of the area being surveyed (the source) and the total number of radiation particles being released within that source per unit time.

2.2.1.2 Instrument Response Instrument response was checked before and after instrument use each day. A check source was used that emitted the same type of radiation (i.e., beta-gamma) as the radiation being measured and that gave a similar instrument response (see the preceding table). The response check was performed using a specified source-detector alignment that could easily be repeated. If the instrument failed its response check, it was not used until the problem was resolved.

Measurements made between the last acceptable response check and the failed check were evaluated and, if appropriate, discarded.

2.2.1.3 Minimum Detectable Concentration A minimum detectable concentration (MDC) was determined for each instrument and scan and static measurement method that were used for survey data collection. Instruments used for scan measurements were capable of detecting radiations of interest to an MDC of less than 20% of the DCGL at a scan rate of 5 cm/sec. The exception to this was the Model 44-9 pancake GM detector, which was capable of detecting radiations of interest to an MDC of 25% of the DCGL.

Instruments used for static measurements were capable of detecting radiations of interest to an MDC of less than 40% of the DCGL with a count time of one minute.

2.2.2 LABORATORY INSTRUMENTATION On-site laboratory instruments were used to perform gas proportional counting of removable surface radioactivity samples (smears). Removable surface radioactivity measurements were performed using the Tennelec Model LB5100 GFP alpha/beta counting system described in the table below.

Tennelec Model LB5100 Parameter Specification Detector Type GFP Radiation Detected Beta Measurement Type Removable surface radioactivity

.Detector Description 57 mm dia. Detector with 80 pg/cm 2 mylar window Background (cpm) 2 to 48 Efficiency (cnts/dis) 0.33 to 0.34 Count Time (min) 2 MDC 14 to 52 dpm/100 cm2 2-4

TROJAN FINAL SUR VEY REPORT- 7TRBINK & CONTROL BUILDING INTERIORS 2.2.2.1 Calibration and Maintenance The Tennelec Model LB5 100 was calibrated for the radiation types and energies of interest by counting a radionuclide standard and comparing the results with the actual concentration on the certificate of calibration provided by the manufacturer of the radionuclide standard. The following table provides typical information on the radionuclide standards used.

Typical Laboratory Instrumentation Calibration Sources Source Radiation Source Source Radionuclides Source Material of Interest Geometry Density of Interest Activity Stainless steel- beta 4.1 cm dia. N/A137CS 45,900 dpm backed metal beta Disk Stainless steel- beta 4.1 cm dia. N/A 13 7cs 15,500 dpm backed metal Disk 2.2.2.2 Daily Qualitv Control Standardization Quality Control (QC) standardization was performed on the Tennelec Model 5100 prior to use each day. A QC standard was used that emitted the same type of beta radiation in the same type of counting geometry as the radiation being measured. Count results were graphed and reviewed for trends in detector performance. No count results fell outside the acceptable QC band and no negative trends were identified in instrument performance.

2.2.2.3 Minimum Detectable Concentration The Tennelec Model 5100 was capable of detecting radiations of interest to less than 1% of the DCGL with a two minute count time.

2.3 SURVEY METHODS Survey methods, as described in the following sections, were applied to collect scan and static measurements of surface residual radioactivity, and removable surface radioactivity measurements from structural surfaces.

2.3.1 SCAN MEASUREMENTS Scan measurements were performed to locate radiation anomalies that might indicate elevated areas of residual radioactivity that require further investigation. The level of scan coverage was proportional to the potential for finding elevated areas of residual radioactivity based on the history of the survey unit.

Where no remediation had occurred, inaccessible surfaces (e.g, inside cracks or small bore penetrations) were assumed to have the same level of residual radioactivity as that found on adjacent accessible surfaces. Accessible surfaces were surveyed the same as other structure surfaces. Where remediation had occurred, an approximation of the residual radioactivity on the 2-5

TROJAN FINAL SURVEY REPORT- TURBINE & CONTROL BUILDING INTERIORS inaccessible surface was made and the accessible surfaces were surveyed the same as other structure surfaces except that they were included in the scan coverage area when scanning was done at less than 100% coverage (i.e., Class 2 survey unit).

2.3.1.1 Scan Coverage Scan measurements of Class 1 survey units were performed over 100% of the surface area. Scan measurements of Class 2 survey units were performed over 10 to 33% of the surface area. For Class 3 survey units, scan measurements were performed over 1 to 10% of the surface area. In Class 2 and Class 3 survey units, those areas with the highest potential for elevated residual radioactivity (e.g., walkways, corners, remediated surfaces), based on professional judgment, were selected for scanning. The percent of scan coverage was determined based on the number and size of the selected areas.

2.3.1.2 Surface Residual Radioactivity Structure surfaces were scanned for beta-gamma emitting radionuclides. Typically, the detector was held less than 2 cm from the surface and moved at 5 cm/sec over an area of one square meter. Once the selected area was scanned, the latched value was electronically entered into the data logger memory. As a matter of practice, the instrument ratemeter alarm was usually set at approximately 0.8 times DCGL. The audible alarm would alert the surveyor that radiation levels are approaching the DCGL. The surveyor would respond by identifying the size of the area exceeding the alarm setpoint, mark the location in the field, and then attempt to capture the maximum radiation level within the elevated area. An investigation was performed where the maximum radiation level exceeded the investigation level.

Normally, the Ludlum Model 43-68 GFP detector with the data logger in ratemeter latching mode was used. For areas with size or geometry constraints, the Ludlum Model 44-9 pancake G-M detector was used.

Structure surfaces were not scanned for alpha-emitting radionuclides. Radiological characterization data indicated that alpha emitters were either not present or were present at activity concentrations that were insignificant in terms of dose contribution. Therefore, alpha-specific measurements of surface residual radioactivity were not performed.

2.3.2 STATIC MEASUREMENTS Static measurements were collected at a frequency and at representative locations throughout the survey unit such that a statistically sound conclusion regarding the radiological condition of the survey unit could be developed.

2.3.2.1 Surface Residual Radioactivity Static measurements to detect beta-gammra emitting surface residual radioactivity on structure and plant system surfaces were normally collected using the Ludlum Model 43-68 GFP detector with the data logger in scaler mode. For areas with access or geometry constraints, the Ludlum 2-6

TROJAN FINAL NURVEY RFPORT- TURRINE & CONTROI. BUILDING INTERIORS Model 44-9 pancake G-M detector or Model 44-116 beta scintillation detector was used. For each discrete measurement, the detector was placed on or near the surface to be measured, a one-minute count was taken, and the value was electronically entered into the data logger memory.

2.3.2.2 Number of Measurements To simplify the final survey process and to ensure conservatism without an associated unreasonable expenditure of resources, a minimum number of 30 static measurements per survey unit were collected. This number of measurements provided a sample population of sufficient size to assure statistical confidence in the conclusions drawn from the survey data (see Section 4.1.3.3).

2.3.2.3 Measurement Locations Measurement locations in Class 1 and Class 2 survey units were selected using a random-start systematic spacing method based on a reference coordinate system appropriate for the survey unit. Scale drawings, maps, or photographs of the survey unit were prepared, along with an overlay of the reference coordinate system. A random number generator provided the coordinates of the starting point. Subsequent measurement locations were distributed around the starting point in a systematic pattern across the survey unit area. In some cases, this led to more than the minimum number of 30 static measurements being collected.

For Class 3 survey units, measurement locations were selected using the random selection process (i.e., the reference coordinate system and a random number generator). A random number generator provided the coordinates of each measurement location.

Measurement locations that did not fall within the survey unit area or that could not be surveyed due to health and safety considerations were replaced with other measurement locations determined using the random selection process.

2.3.3 SUPPLEMENTAL MEASUREMENTS Supplemental measurements to detect removable beta-gamma emitting surface residual radioactivity on structure surfaces were collected at static measurement locations. These measurements (i.e., smears) were collected to verify removable surface radioactivity was no more than 10% of the gross activity DCGL. Smears were counted in the laboratory using the Tennelec Model LB5100.

2.3.4 MEASUREMENT LOCATION IDENTIFICATION Measurement locations were clearly identified and documented to ensure they could be relocated if necessary. Actual measurement locations were permanently marked in the field and on survey maps. A unique number identifies each measurement location. The number convention, described in Section 2.4.4, allows survey data to be referenced to specific measurement locations identified on the photographs, drawings, or maps of the survey unit.

2-7

TROJA N FINAI. SIIRVEY REPORT-TURBINE & CONTROL BUIll DING INTERIORS Physical gridding was used where practical and useful. It provided a mechanism for referencing scan measurements to a specific location. Permanent marker was used to mark the physical grid layout. The basic grid pattern used was a one-meter square grid.

2.4 SURVEY PERFORMANCE 2.4.1 SAMPLE HANDLING Smear samples collected for laboratory analysis were tracked. When sample custody was transferred (e.g., when samples were sent to the lab for analysis), a sample tracking record accompanied the sample for tracking purposes. The sample tracking (or chain of custody) record documented the custody of samples from the point of collection until final results were obtained.

2.4.2 DATA INVESTIGATION Locations, identified by scan or static measurements, with residual radioactivity that exceeded the DCGL were marked and investigated. Scan measurements were performed over 100 percent of the area being investigated. Static measurements in the form of scalar or integrated counts were performed at locations with the highest concentration of residual radioactivity. A posting plot was also generated to document the area investigated and the levels of residual radioactivity found.

A single data investigation was performed. Scan measurements identified a small area (less than 2 m2) of elevated residual radioactivity with levels up to 29,000 dpm/100 cm2 in survey unit S02035A. The area of the survey unit containing the elevated measurements was separated out into a new survey unit and remediated. The new survey unit (S02035E) was reclassified as a Class 1 survey unit and resurveyed. The details of the investigation are included in survey unit summary reports (see Appendix B).

2.4.3 DATA RECORDING Measurement data were corrected for instrument efficiency, source efficiency, detector area, and measurement size as applicable, and recorded in units appropriate for comparison to the DCGL.

The recording units were dpmI/100 cm2 . Measured numerical values were recorded and included values below the MDC. Instrument and material backgrounds were not subtracted from residual radioactivity measurements gathered using portable instrumentation. Instrument background was subtracted from measurements analyzed using laboratory instrumentation.

Measurement results stored as final survey data constitute the final survey of record and are included in the data set for each survey unit. The data were used for calculations to determine compliance with the site release dose criterion. The affected data were stored as characterization data where a survey unit was remediated and/or reclassified during final survey.

2-8

TROJAN FINAL SURVEY REPORT- TURBINE & CONTROL RUILTI)NG INTERIORS 2.4.4 DATA MANAGEMENT The Survey Data Management System (SDMS) was used to store and process survey data. The SDMS is an electronic database that contains the final survey data and constitutes the quality record. Administrative controls for maintaining data integrity were incorporated into the software design. SDMS applications were tested as part of two separate tests: factory acceptance testing performed by the vendor and site acceptance testing performed by the Final Survey organization. A test plan and procedure were developed and documented for each functional module. Documented test results include the acceptance test objectives, test results, test discrepancies, and corrective actions taken to resolve the discrepancies.

Raw survey data captured in the Ludlum Model 2350-1 data logger were downloaded, electronically converted to recording units, and uploaded to the SDMS. Other data, such as laboratory data, were manually entered into the SDMS for analysis.

For electronic storage and retrieval purposes, each survey measurement is identified by a unique 15-digit code. The first seven digits are the survey unit Identification (ID) code (see Section 2.1.3). The last eight digits are the measurement ID code. The first two digits of the measurement ID code identify the type of measurement, as shown in the following table, and the last six digits are the unique measurement location ID.

Measurement Type Codes Type Code 7 Type Description 01 Static surface beta 04 Removable beta smears 08 Surface scanning beta Records of survey data include the surveyor identification, measurement type, measurement location, measurement instrumentation used, measurement results, and time and date measurement was taken.

2.4.5 QUALITY CONTROL MEASUREMENTS Quality Control (QC) measurements were performed to identify, assess, and monitor measurement error and uncertainty attributable to measurement methods or analytical procedures used in the survey data collection process. Two types of QC measurements were performed on a regular basis: QC checks and repeat measurements. A third type of QC measurement, duplicate sample analysis, was performed but is unrelated to the final survey of the Turbine and Control Building interiors. Duplicate sample analysis is performed for volumetric (not surface) residual radioactivity. Where discrepancies were identified or acceptance criteria were not met, an evaluation was performed to determine the cause and identify any necessary follow-up actions.

2-9

TROJAN FINAL SURVEY REPORT- TURRINE & CONTROL BRUiL DiNG 7NTER7ORS 2.4.5.1 OC Checks Ten direct observations of survey set-up and close-out activities and scan and static measurements were performed. The observations were reviewed with the surveyors and follow-up actions such as on-the-spot correction, surveyor refresher training, changes in work process, development of good practices, and procedural corrections and improvements were taken.

2.4.5.2 QC Repeat Measurements A set of fifteen repeat measurements was collected at each of three measurement locations. The selected measurement locations represented a range of residual radioactivity from 4,000 to 12,000 dpm/100 cm 2 . For each data set, the mean value was calculated and compared to the original measurement value. Measurement accuracy was deemed acceptable where the original measurement fell within +/-20% of the mean of the repeat measurement data set. The original measurements for the measurement locations selected met the QC acceptance criterion.

2.4.6 PROCEDURES Final survey activities were implemented and controlled using approved plant procedures. A list of those procedures is given in Table 2-2.

2.4.7 TECHNICAL BASIS DOCUMENTS Calculations and memoranda were prepared to document methods that were used, how the methods were derived, underlying assumptions for decisions that were made, the basis for deviations, and other information that warranted documentation. The technical basis documents developed to support/conduct the final survey of the Turbine and Control Building interiors are listed in the table below.

Calculations Number Title FSC 2002-03 Gross Activity DCGL for the Auxiliary Building FSC 2002-04 Gross Activity DCGL for Systems, Structures, and Components Impacted Due to Primary to Secondary System Leakage FSC 2002-05 Area Factors for Use with the Auxiliary Building Gross Activity DCGL FSC 2002-07 Remediation Levels for the Auxiliary Building Gross Activity DCGL FSC 2002-08 Remediation Levels for the Primary to Secondary Affected Areas DCGL FSC 2003-03 Site Specific Scabbled Concrete Source Efficiency Factor FSC 2003-06 Area Factors for Use with the Primary to Secondary Affected Areas DCGL FSC 2003-07 Survey Unit Sizing for MDC Scan Values Exceeding Auxiliary Building Gross Activity DCGL 2-10

TROJAN FINAL U'JRVEYREPORT-TURBINE & CONTROL RBUILT)N INTERIORS Memoranda Number Title FS-007-03 Turbine Building Final Survey FS-017-03 Auxiliary and Fuel Building Corridor Classification FS-018-03 Beta Surface Scans with a Pancake GM Survey Instrument FS-019-03 Scan MDC Evaluation for Auxiliary Building Survey Unit Designs 2.4.8 CONTROL OF VENDOR SUPPLIED SERVICES Quality-related services, shown in the following table, were procured from qualified vendors whose internal Quality Assurance (QA) program was subject to approval in accordance with the Trojan QA Program.

Vendor Supplied Services Vendor Service Ludlum Measurements, Inc. Instrument repair and calibration services Isotope Products Laboratories NIST-traceable calibration and check sources Thermo Nutech Characterization sample analysis Duke Engineering Characterization sample analysis SAIC Characterization sample analysis 2.4.9 TRAINING Final survey data collection and technical support staff members were initially trained and qualified in procedures performed by them, and received annual refresher training thereafter.

Surveyors completed scan and static survey practical training on a semi-annual basis. The following table lists the lesson modules developed and used to provide the training.

Final Survey Training Program Module - Title FS-S-11-LP Final Survey Plan Overview FS-S-22-LP Survey Unit Design FS-S-33-LP Survey Instruments/Data Collection FS-S-55-LP Scan and Static Survey Practical FS-S-66-LP Survey Data Processing FS-S-77-LP SDMS Overview FS-S-88-LP Annual Refresher Training 2-11

TROJAN FINAL SURVEY REPORT- TURBINE & CONTROL BUILDING INTFRIORS Table 2-1 Summary of Operational Survey Data Survey Operational Survey Resultsb ID Description (dpml100 cm2) Class Code' _Coverage Total I Removable 1121 3 Turbine Buildin S02027A TB Elev 27'Neutralizing Tank Room <5% l 5.000 <1,000 x S02027B TB Elev 27' Condensate Pmp Area Lwr Walls/Firs <5% < 50,00 <1,000 x __

S02027C TB Elev 27'Turbine Building Sump - East Side 100% < 50,000 <1,000 x _

S02027D TB Elev 27' Cond Pump Area Uppr Walls/Ceiling <5% < 5,000 <1,000 x S02027E TB Elev 27' Condensate/Feedwtr Htr Drn Pmp Pits <5% < 5,000 <1,000 x S02035A TB Elev 35'East of Condenser <5% S 5,000 <1,000 x S02035B TB Elev 35' NE Corner - Small Floor Area 100% < 5,000 <1,000 _ xI S02035C TB Elev 35' West Side & Under Condenser <5% < 5,000 <1,000 I IX S02035D TB Elev 35' SW Corner Area 100% < 30,000 <1,000 x I S02035E TB Elev 35' Circulating Water Piping Area 100% 5 29,000 <1,000 x _

S02045A TB Elev 45' North Wall (to Elev 93') <5% 5 5,000 <1,000 x S02045B TB Elev 45' CB Walkway North Wall <5% 5 5,000 <1,000 x S02045C TB Elev 45' East of Column Line U <5% 5 5,000 <1,000 X S02045D TB Elev 45' West of Column Line U <5% 5 5,000 <1,000 x S02045E TB Elev 45' Stm Packing Exhaust Drn Trough Flr <5% 5 50,000 <1,000 x _

S02045F TB Elev 45' Conc ColFloor SW Corner Cond A 100% < 80,000 <1,000 x __

S02045G TB Elev 45' SE Stairwell & Freight Elevator Area <5% 5 5,000 <1,000 x S02045H TB Elev 45' Survey for Release Facility Floor 25% 5 5,000 <1,000 x S02045J TB Elev 45' Survey for Release Fac Walls/Ceiling <5% 5 5,000 <1,000 _ x S02045K TB Elev 45' Crane Bay/Breezeway (less N Wall) <5% 5 5,000 <1,000 _ x S02063A TB Elev 63' Floor, Walls, Ceiling, & Equipment <5% 5 5,000 <1,000 x S02063B TB Elev 63' Main Steam Stop Valve Area 100% < 50,000 <1,000 x _

502063C TB Elev 63' Air Ejector Area on Floor 100% <50,000 <1,000 x S02069A TB Elev 69' Switchgear Area Floors/Walls/Ceiling <5% 5 5,000 <1,000 x S02093A TB Elev 93' North Wall <5% 5 5,000 <1,000 _ x S02093B TB Elev 93' Feedwater Heater 5 & 6 Area <5% N/Ac <1,000 x S02093C TB Elev 93' East Turbine Floor Area <5% N/Ac <1 000 _ x S02093D TB Elev 93' Cond Air Dischrge Mon/Ejector Area 100% 5 15,000 <1,000 x _

S02093E TB Elev 93' South Turbine Floor and Shroud <5% 5 5,000 <1,000 _ x S02093F TB Elev 93' West Turbine Floor <5% 5 5,000 <1,000 x S02093G TB Elev 93' Main Bay E, So, W Walls & Ceiling <5% < 5,000 <1,000 x S02093H TB Elev 93' Turbine Deck Equipment Surfaces <5% 5 5,000 <1,000 x

_ Control Buildi= _I S06045A CB Elev 45' I&C Shop & Office Areas <5% < 5,000 <1,000 x S06045B CB Elev 45' Counting Room (inside RCA) 80% < 5,000 <1,000 x S06045C CB Elev 45' SE Stairwell (inside RCA) 100% < 5,000 <1,000 x S06045D CB Elev 45' SE Elev/Shft/Eqp Rm (inside RCA) 80% < 5,000 <1,000 x S06045E CB Elev 45' RP Offices, Restrooms, & Lobby <5% 5 5,000 <1,000 x S06045F CB Elev 45' SW StairwellVElev/Shaft/Equip Rm <5% 5 5,000 <1,000 x S06045G CB Elev 45' RCA Access Area (inside RCA) 20% < 5,000 <1,000 x S06054A CB Elev 54' HVAC & RP/Ops Break Areas <5% < 5,000 <1,000 x S06061A CB Elev 61' "B" Switchgear/Tele/Mech Rms <5% < 5,000 <1,000 x S06065A CB Elev 65' "B" Electrical Auxiliaries <5% < 5,000 <1,000 _ x S06077A GB Elev 77' Cable Spreading Room <5% 5 5,000 <1,000 x 2-12

TROJAN FINAL .SURVEY REPORT-TURBINE & CONTROL RUILDING INTERIORS Table 2-1 Summary of Operational Survey Data Survey Operational Survey Resultsb C ID Description (dpm/100 cm 2) Class Codea Coverage Total Removable 1 2 3 Control Building (cont.)

S06077B CB Elev 77'Elev Lobby/Computer/Mech Rms <5% < 5,000 <1,000 _ x S06093A CB Elev 93'Control Room & Shift Mgr's Office <5% < 5,000 <1,000 x S06093B CB Elev 93' Cold Lab/Elev 102' Viewing Gallery <5% < 5,000 <1,000 S06093C CB Elev 93'Containment Access Area <5% < 5,000 <1,000 x S06105A CB Elev 105'Mechanical Room <5% < 5,000 <1,000 x Notes:

' See Section 2.1.3 for description of survey 1D code nomenclature.

2 b Survey results reported to nearest 1,000 dpm/100 cm and represent pre-remediation values.

' Survey data not available as part of survey unit release record.

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TROJAN FAINAL .UPRVP Y RPPORT- TI1RR~hTPo rnvTRnT. RrE .UIwDG iArTTpRnp.V Table 2-2 Final Survey Procedures Number Title TPP 14-24 Transfer of Turnover Units TPP 16-1 Material/Service Procurement and Control Process (forpurchasingfinal survey materialsand services)

TPP 18-4 Trojan Nuclear Plant Quality Assurance Records Management Program (for finalsurvey quality records processing)

TPP 18-9 Trojan Calculations (for creatingtechnicalbasis documents)

TPP 18-10 Control of Quality-Related Computer Programs (for SDMS revision validations)

TPP 20-40 Control of Areas Surveyed for Final Site Release TPP 22-1 Trojan Training Program (for documentingfinal survey staff training)

RP 95 Ludlum M2350-1 Data Logger Calibration Procedure (fordata logger electronic calibrations/checksonly)

RP 159 Conduct of Portable/Semi-Portable Radiation Protection Instrument Program (for instrument tagging and calibrationsticker)

RP 450 Final Survey Administrative and Quality Controls RP 451 Final Survey Unit Design RP 452 Final Survey Data Collection RP 453 Final Survey Data Processing RP 454 Final Survey Background Reference Areas RP 455 Final Survey Quality Control Measurements RP 456 Control & Operation of Data Logger Survey Instruments RP 457 Development and Application of Derived Concentration Guideline Levels RP 458 Final Survey Remediation Levels and ALARA Evaluations RP 459 Final Survey Instruments Calibration Program RP 460 Final Survey Data Management RP 461 Groundwater Sample Collection RG 20-10 SDMS Applications Instructions CL 161 LB5 100 Planchet Counting System Calibration Procedure LI 162 LB5 100 Planchet Counting System Operation 2-14

TROJAN FM/Al. SUR VEY REPORT- TURRINE & CONTROL BUIL DING? NTTRIORS

3. FINAL SURVEY RESULTS Final survey scan, static, and supplemental data were collected from the Turbine and Control Building interiors. Scan measurements were perforned over approximately 2,700 m2 and a total of 1,483 static measurements were collected as final survey data. Table 3-1 summarizes the final survey results. In addition, 1,363 supplemental removable surface radioactivity measurements (or smears) were collected, with results all less than 1,000 dpm/100 cm2 . One data investigation was performed of a location of approximately 2 m2 of surface area identified by scan measurements with residual radioactivity above the DCGL. A detailed summary of final survey data for each survey unit is given in the survey unit summary reports in Appendices B and C.

Scan measurement data are provided in the Supplement. Measurement results given in the following sections are for direct surface beta measurements, unless otherwise noted.

3.1 TURBINE BUILDING INTERIOR The Turbine Building interior, shown in Figures 3-1 through 3-4, comprises nine Class I survey units, five Class 2 survey units, and 18 Class 3 survey units.

For Class 1 survey units, the surface area of each survey unit ranged from 10 to 244 in 2 . Scan measurementswere erformedover 10%ofthesurfaceareawithresults ranging from 590 to 19,000 dpm/100 cm , with a single small area up to 29,000 dpm/1O cm0. Static measurements were collected from 30 to 40 locations in each survey unit, with results ranging from 180 to 12,000 dpm/100 cm2 . Average measured values ranged from 1,100 to 2,200 dpm/100 cm2 .

Scan measurements identified a single location with elevated residual radioactivity in survey unit S02035A. Data investigations revealed less than 2 m2 of surface area with residual radioactivity above the DCGL, and radioactivity levels up to 29,000 dpm/100 cm 2 . The area was removed from the survey unit, remediated and resurveyed. Post-remediation survey results showed radioactivity levels up to 12,000 dpm/100 cm2 .

For Class 2 survey units, the surface area of each survey unit ranged from 3 to 1,440 M2 . Scan measurements were performed over 10% to 33% of the surface area, with results ranging from 640 to 3,500 dpm/100 cm2 . Static measurements were collected from 30 to 42 locations in each survey unit. Static measurement results ranged from 570 to 3,900 dpm/100 cm 2 , with average measured values ranging from 970 to 2,800 dpml/00 cm 2 .

For Class 3 survey units, the surface area of each survey unit ranged from 66 to 8,926 M2 . Scan measurements were performed over 1% to 10% of the surface area, with results ranging from 400 to 4,300 dpm/100 cm2 . Static measurements were collected from 30 to 40 locations in each survey unit. Static measurement results ranged from 280 to 2,200 dpm/100 cm 2 , with average measured values ranging from 450 to 1,200 dpm/100 cm2 .

3-1

TROJAN FINAL. SURVEY REPORT- TURBINE & CONTROL RULDfINGL NTERLOR=

3.2 CONTROL BUILDING INTERIOR The Control Building interior, shown in Figures 3-5 through 3-8, comprises five Class 2 survey units and 11 Class 3 survey units. No areas were identified with elevated residual radioactivity above the DCGL. The surface area of the Class 2 survey units ranged from 123 to 530 M2 . Scan measurements were performed over 10 to 20% of the surface area, with results ranging from 770 to 3,100 dpm/100 cm2 . Static measurements were collected from 30 to 33 locations in each survey unit. Static measurements results ranged from 490 to 2,500 dpm/l 00 cm 2 , with average measured values ranging from of 1,000 to 1,200 dpm/100 cm2 .

For the Class 3 survey units, the surface area of each survey unit ranged from 540 to 1,355 m 2 .

Scan measurements were ?erformed over 2 to 5% of the surface area, with results ranging from 580 to 2,000 dpm/100 cm . Static measurements were collected from 30 locations in each survey unit. Static measurement results ranged from 390 to 1,600 dpm/100 cm2 , with average measured values ranging from 680 to 1,100 dpm/100 cm 2 .

3-2

( C (

TROJAN FINALSUlRVFY REPORT- TURRINE *&COrNTROI. BUILMDUNG INTFRIORS Table 3-1 Summary of Final Survey Results Survey Scan Measurements Static Measurements Survey .s.tClass Area (mn)" (dpm/100 cm 2) (dpm1I00 cmz)

ID Code' DecitodF1Coverage Lowj High Nme Lowv 1 Ia lHg I od'Dsrpo IT2 Floor' Other (/;laulVlte Number valeeMeantj V11'ghe I (%) l*alu Val e lValue ~lValuce Turbine Building S02027A TB Elev 27'Neutralizing Tank Room x 123 416 4% 760 1,300 30 390 800 1,200 S02027B TB Elev 27' Condensate Pump Area Lower Walls/Floors x 102 142 100% 1,000 13,000 30 720 1,500 2,600 S02027C TB Elev 27' Turbine Building Sump - East Side x _ 38 106 100% 590 3,200 30 870 1,900 2,800 S02027D TB Elev 27' Condensate Pump Area Upper Walls/Ceiling x 0 145 4% 520 1,200 30 340 700 1,200 S02027E TB Elev 27' Condensate/Feedwater Htr Drain Pump Pits __ x 4 62 4% 810 2,600 30 280 450 1,100 S02035A TB Elev 35' East of Condenser x 276 519 10% 480 2,100 30 360 680 1,200 S02035B TB Elev 35' NE Comer - Small Floor Area _ x _ 3 0 33% 3,500 3,500 30 1,90 2,800 3,900 S02035C TB Elev 35' West Side & Under Condenser _ _ x 570 476 7% 540 4,300 30 560 1,200 2,200 S02035D TB Elev 35' SW Comer Area x _ 5 18 100% 1,200 5,400 30 940 1,600 3 400 S02035E TB Elev 35' Circulating Water Piping Area x _ 8 7 100% 1,100 19,000 30 860 2,100 12,000 S02045A TB Elev 45' North Wall (to Elev 93') x 0 757 5% 700 1,400 30 470 680 1,000 S02045B TB Elev 45' CB WalkwayNorth Wall x 0 122 5% 760 1,400 30 540 760 1,300 S02045C TB Elev 45' East of Column Line U x 1,933 3,066 5% 400 1,500 30 320 750 1,100 S02045D TB Elev 45' West of Column Line U x 1727 3,332 5% 460 1,800 30 380 860 1,300 S02045E TB Elev 45' Steam Packing Exhaust Drain Trough Floor x __ 74 0 100% 670 2,900 33 180 1,00 2,300 S02045F TB Elev 45' Concrete Column/Floor SW Corner Cond A x _ _ 32 0 100% 1,900 2,700 30 1,300 1,600 1,800 S02045G TB Elev 45' SE Stairwell & Freight Elevator Area I _x 79 401 5% 620 2,000 30 470 730 1,400 S02045H TB Elev 45' Survey for Release Facility Floor _ x _ 342 0 15% 1,300 1,700 30 1,1OC 1,200 1,400 S02045J TB Elev 45' Survey for Release Facility Walls/Ceiling x 0 1,381 3% 990 1,600 30 440 900 1,200 S02045K TB Elev 45' Crane Bay & Breezeway (less North Wall) x 326 1,032 4% 830 1,800 30 520 950 1,400 S02063A TB Elev 63' Floor, Walls, Ceiling, & Equipment _ _ x 1,378 3,895 1% 590 2,000 30 370 820 1,200 S02063B TB Elev 63' Main Steam Stop Valve Area x _ 10 0 100% 2,300 3,200 30 1,700 2,200 5,100 S02063C TB Elev 63' Air Ejector Area on Floor x 70 0 100% 1,100 3,100 40 920 1,100 2,200 S02069A TB Elev 69' Switchgear Area Floors/Walls/Ceiling x 674 2,000 1% 720 1,700 30 540 1,100 1,400 S02093A TB Elev 93' North Wall x 0 596 5% 680 1,100 30 470 590 690 S02093B TB Elev 93' Feedwater Heater 5 & 6 Area x 742 1,284 2% 650 1,300 30 440 810 1,100 S02093C TB Elev 93' East Turbine Floor Area x - 1_

1052 0 10% 950 1,500 30 570 970 1,200 S02093D TB Elev 93' Cond Air Discharge Monitor/Ejector Area x __ 36 0 100% 770 2,800 33 550 1,700 2,300 S02093E TB Elev 93' South Turbine Floor and Shroud x _ 415 1,025 10% 640 1,500 42 640 1,100 j1,0 3-3

C { C.

TRO IAN FINAl. StIRVFYRFPORT- TIIRBINF & CONTROL BIJULDING INTERIORS Table 3-1 Summary of Final Survey Results Survey Scan Measurements Static Measurements Survey.DCde .

Description Class Area (m2)b (dpm/100 cm2) (dpml/100 cm2)

ID od' Cveagel ow1 igiF Nme Low Meae light IDCoeFloor lcOtlerd (%) ValueI Value' Number lValuelMeane IValue Turbine Building (cont.)

S02093F TB Elev 93'West Turbine Floor x 873] 0 10% 1,300 1,800 30 ] 1,100 1,300 1,400 S02093G TB Elev 93'Main Bay E, So, W Walls & Ceiling _ _ x 01 8,926 1% 710 1,470 40 480 890 1,700 S02093H TB Elev 93'Turbine Deck Equipment Surfaces x 01 107 1% 760 1,400 30 1490 .760 1,200 Control Building S06045A CB Elev 45'I&C Shop & Office Areas x 205 486 3% 880 1,500 30 630 940 1,200 S06045B CB Elev 45'Counting Room (inside RCA)' x 16 107 20% 1,000 2,900 31 810 1,200 2,500 S06045C CB Elev 45'SE Stairwell (inside RCA)' x 69 309 10% 940 1,800 33 690 1,000 1,400 S06045D CB Elev 45'SE Elevator/Shaft/Equip Rm (inside RCA) x 19 300 15% 770 1,700 30 570 1,000 1,500 S06045E CB Elev 45'RP Offices, Restrooms, & Lobby x 240 743 5% 700 1,500 30 640 920, 1,400 S06045F CB Elev 45'SW Stairwell/Elevator/Shaft/Equipment Rm _ _ x 99 672 5% 1,100 1,700 30 560 1,100 1,400 S06045G CB Elev 45'RCA Access/Egress Area (inside RCA)' _ x 90 440 10% 850 3,100 31 490 1,000 2,300 S06054A CB Elev 54'HVAC and RP/Ops Study/Break Areas x 220 672 2% 1,000 1,800 30 460 920 1,300 S06061A CB Elev 61"'B" Switchgear/Telephone/Mechanical Rms x 351 976 3% 640 2,000 30 390 850 1,400 S06065A CB Elev 65"'B" Electrical Auxiliaries x 222 616 2% 580 1,400 30 390 740 1,300 S06077A CB Elev 77'Cable Spreading Room x 470 885 3% 720 1,500 30 710 1,100 1,600 S06077B CB Elev 77'Elevator Lobby/Computer/Mechanical Rms _ _ x 132 408 3% 690 1,400 30 390 680 1,100 S06093A CB Elev 93'Control Room & Shift Manager's Office x 369 901 3% 700 1,600 30 460 760 1,200 S06093B CB Elev 93'Cold Lab and Elev 102'Viewing Gallery x 147 514 5% 930 1,800 30 650 1,100 1,600 S06093C CB Elev 93'Containment Access Area _ x_ 78 373 10% 890 1,700 30 650 1,000 1,500 S06105A CB Elev 105'Mechanical Room _I x 157 427 3% 830 1,700 30 6501 9201 1,400 Notes:

' See Section 2.1.3 for description of survey ID code nomenclature.

b Where survey unit consists of walls or ceilings only, survey unit was sized so as to preserve dose modeling assumptions.

CIncludes floor surface area only.

dIncludes balance of surface area in survey unit.

'Survey results reported to two significant digits.

r RCA gross activity DCGL of 7,500 dpm/100cm 2 applied to these survey units; primary-to-secondary leakage gross activity DCGL of 21,000 dpm/100 cm 2 applied to all other survey units.

3-4

TROJAN FINAL SUR VEYREPORT- TURBINE & CONTROL BUILDING INTERIORS

4. DATA ASSESSMENT Final survey data were reviewed to ensure that they were of a sufficient type, quantity, and quality such that conclusions could be drawn with confidence regarding the radiological condition of the survey unit. Conclusions were drawn and documented in a separate release record prepared for each survey unit. A summary of the release record for each survey unit is given in Appendices B and C.

4.1 DATA VERIFICATION AND VALIDATION Data were reviewed to verify Data Quality Objectives (DQOs) established in the final survey design were met. Graphical representations and statistical comparisons of the data were made which provided both qualitative and quantitative information about the data. An assessment was performed to verify the data supported the underlying assumptions necessary for the statistical tests, if applicable.

4.1.1 DATA QUALITY The final survey data were verified authentic, appropriately documented, and technically defensible. Specifically, the following conclusions were made:

1. The instruments used to collect the data were capable of detecting the radiation of interest at or below the investigation level.

2. The calibration of the instruments used to collect the data was current and radioactive sources used for calibration were NIST traceable.

3. Instrument response was checked before and, where required, after data collection each day.

4. The MDCs and the assumptions used to develop them were appropriate for the instruments and the survey methods used to collect the data.

5. The survey methods used to collect the data were appropriate for the media and types of radiation being measured.

6. Special measurement methods used to collect the data were applied as warranted by survey conditions.

7. The custody of samples collected for laboratory analysis was tracked from the point of collection until final results were obtained.

8. The final survey data set consists of qualified measurement results that are representative of the current facility status and randomly collected as prescribed by the survey design.

4-1

TROJANFINAL SUR VEYREPORT- TURBINE & CONTROL BUILDING INTERIORS 4.1.2 GRAPHICAL DATA REVIEW Survey data were graphed to identify patterns, relationships, or potential anomalies in the data that might go unnoticed using purely numerical methods. A frequency plot was used to examine the general shape of the data distribution.

4.1.3 BASIC STATISTICAL COMPARISONS Statistical quantities (range, median, and standard deviation) were calculated for the final survey data set for each final survey unit. The calculated quantities were compared to the test values shown in the following table.

Basic Statistical Comparisons Statistical Quantity Test Value Failure Response Range (R) R

• 5a Examine data for outliers Median (Q) II (fi - mean) / a I

• 0.5 Examine data for outliers and anomalies Standard Deviation (a) a

• 0.2 x DCGL Determine if more measurements are necessary Where the statistical quantity failed the comparison, the data set and/or survey design assumptions were examined. The following table summarizes the statistical quantity failures.

Statistical Quantity Failures Survey Calculated Acceptance Reason for Failure Unit Value Criterion umb of High/Low Value Balance of Data Unit _________ Outliers (dpm/100 cm 2), (dpm/100 cm 2)2 Range Test S02027E 849 *804 1 1,000 <1,000b S02035C 1,607 < 1,426 1 2,000 <1,000b S02063B 3,452

• 3,308 2 5,000c <3,000 S02063C 1,286

• 1,003 1 2,000 <1,000b Median Test S02045B l 0.546 l *0.500 l N/A l N/A l N/Ad S02093G 0.555

• 0.500 N/A N/A N/Ad Standard Deviation Test No test failures Notes:

a Values rounded to nearest 1,000 dpm/100 cm2 .

b Small standard deviation due to tight data set population distribution.

' Average value of both outliers.

dRight-skewed data set.

4-2

TROJAN FINAL SURVEY REPORT- TURBINE & CONTROL BUILDING INTERIORS 4.1.3.1 Range Test Where the range was greater than 5 standard deviations, the data were examined for outliers.

Outliers usually represented true extreme values of a distribution, such as areas of elevated residual radioactivity, and indicated more variability in the population than was expected. There were four range test failures; however, no data were discarded. The failures were generally caused by a very tight distribution with one or two outliers with elevated results compared to the rest of the data set.

4.1.3.2 Median Test Failure of the median test indicates large differences between the mean and the median and is an indication of the skewness in the data, warranting an examination of the data for outliers or anomalies. There were two median test failures; however, no data were discarded. The failures were caused by right-skewed data sets.

4.1.3.3 Standard Deviation Test Where the value of the calculated standard deviation was larger than that estimated in the survey design (the initial design value was 0.2 x DCGL), an insufficient number of measurements may have been taken and additional measurements may have been necessary. There were no failures of the standard deviation test.

As an additional measure of assurance, a retrospective power analysis was performed to verify the power of the Sign test would have been sufficient based on a minimum of 30 measurements collected and an actual standard deviation larger than that estimated in the survey design. The largest standard deviation from actual survey data collected was used (survey unit S02035E) along with survey design values contained in the LTP, Appendix 4-2, to construct the power analysis. The results, shown in the table below, indicate that fewer than 15 measurements per survey unit would have provided a sample population of sufficient size to assure statistical confidence in the conclusions drawn from the survey data. Therefore, the number of measurements collected was in ali cases adequate.

Retrospective Power Analysis Data Parameter Value Standard Deviation (a) 0.1 x DCGL Lower Bound of Gray Region (LBGR) 0.4 x DCGL False Positive Decision Error (a) 0.05 False Negative Decision Error (P) 0.05 Minimum Size of Sample Population <15 4-3

TROJAN FINAL SURVEYREPORT- TURBINE & CONTROL BUILDING INTERIORS 4.2 SATISFACTION OF THE SITE RELEASE CRITERIA Four conditions were established that, when met, satisfy the site release criteria (see Section 1.3.1). These conditions were applied to each survey unit as shown in Table 4-1.

4.2.1 CONDITION #1 - MEAN TEST Condition #1 requires that the average residual radioactivity above background be less than or equal to the DCGL. To determine if Condition #1 was met, the mean of the final survey unit data set for each survey unit was compared to the DCGL. In all cases, the average residual radioactivity was less than 0.2 x DCGL. Therefore, each survey unit satisfies Condition #1.

4.2.2 CONDITION #2 - ELEVATED MEASUREMENT COMPARISON Condition #2 requires that individual measurements, representing small areas of residual radioactivity that exceed the DCGL, do not exceed the elevated measurement comparison (EMC)

DCGL. To determine if Condition #2 was met, the individual measurements that exceeded the DCGL would have been compared to the EMC DCGL. In this case, however, there were none.

Therefore, the survey unit satisfies Condition #2.

The EMC DCGL was developed using the methodology and the area factors provided in the LTP, Appendix 4-1. The radionuclide-specific area factors given in the LTP could not be used directly to develop the EMC DCGL since the gross activity DCGL was derived based on a radionuclide distribution and not on a single radionuclide. Instead, a weighting method was applied using the radionuclide distribution and the relative activity fractions used to derive the gross activity DCGL. The radionuclides of interest were those used in the derivation of the gross activity DCGL. Area factors for use with the gross activity DCGL were calculated for areas of elevated residual radioactivity of I mi2 , 4 i 2 , and 9 m2 in size.

4.2.3 CONDITION #3 - SIGN TEST Condition #3 requires that where one or more static measurements exceed the DCGL, the average residual radioactivity passes the Sign statistical test. To determine if Condition #3 was met, the Sign test would have been applied to the final survey data set of any survey unit with one or more static measurement above the DCGL. In this case, however, there were none.

Therefore, each survey unit satisfies Condition #3.

The Sign statistical test was not applied to the final survey data set of any survey unit since none had one or more static measurements that exceeded the DCGL. The data provided statistically significant evidence that the level of residual radioactivity in the survey unit does not exceed the site release dose criterion. The results of the statistical test are the basis for the decision that the survey unit is acceptable for unrestricted release can be made with sufficient confidence and without further analysis. The Wilcoxon Rank Sum (WRS) statistical test was not used.

If all data measurements in the data set are less than the DCGL, the data set will always pass the Sign test. Therefore, the Sign test is not performed on such a data set.

4-4

TROJANFINAL SURVEYREPORT- TURBINE & CONTROL BUILDING INTERIORS 4.2.4 CONDITION #4 - ALARA EVALUATION Condition #4 requires that remediation be performed where it is ALARA to reduce the levels of residual radioactivity to below the concentrations necessary to meet the DCGLs. The levels of residual radioactivity were considered ALARA once remediation actions, considered to be cost effective, were taken. To determine if Condition #4 was met, an ALARA evaluation was performed for every Class I or Class 2 survey unit. In all cases, the ALARA evaluation verified that remediation was performed where it was ALARA to do so. Therefore, each survey unit satisfies Condition #4.

The ALARA evaluation ensured that: (1) residual radioactivity had been reduced to levels that are as low as reasonably achievable, and (2) efforts to remove residual radioactivity were commensurate with the level of risk the residual radioactivity poses. The ALARA evaluation examined various remediation actions to determine which actions, if any, have a net benefit in further reducing the levels of residual radioactivity. The evaluation compared residual radioactivity levels to calculated remediation levels (see Appendix A) for possible remediation actions. The remediation action was taken where the level of residual radioactivity exceeded the remediation level. Conversely, if the concentration was less than the remediation level, the level of residual radioactivity was documented as ALARA and the remediation action was not performed. By their classification, Class 3 survey units are considered ALARA and no evaluation is performed.

4-5

C, (C (

TROJAN FINAL SUIRVFY REPORT- TlURRINF & CONTROL BlUILDING INTFRIORS Table 4-1 Satisfaction of Conditions for Site Release Class Condition #1 Condition #2 Condition #3 Condition #4

Conclusion:

Survey Clao Mean Test EMC Sign Test ALARA Satisfies ID Code Description  % of Area Max I% or S+ Critical Rad Levels Remediated Release 1 3Mean I DCGL (2)l Value EMC Value Value ALARA? to ALARA? Criteria?

_ Turbine Building S02027A TB Elev 27'Neutralizing Tank Room x 800 4% --- --- --- Y N/A Y S02027B TB Elev 27'Condensate Pmp Area Lower Walls/Firs x 1,500 7% --- --- --- N Y Y S02027C TB Elev 27'Turbine Building Sump - East Side x 1,900 9% _-. --- --- N Y Y S02027D TB Elev 27' Condensate Pmp Area Upper Walls/Ceil ___ x 690 3% .-.

--- --- --- Y N/A Y S02027E TB Elev 27'Condensate/Feedwater Htr Drn Pmp Pits _ x 450 2% --- --- --- --- --- Y N/A Y S02035A TB Elev 35'East of Condenser I_x 680 3% --- --- --- --- Y N/A Y S02035B TB Elev 35'NE Corner - Small Floor Area x 2,800 13% --- --- --- --- --- Y N/A Y S02035C TB Elev 35'West Side & Under Condenser x 1,200 6% --- --- --- --- --- Y NiA Y S02035D TB Elev 35'SW Corner Area x 1,600 8% --- --- --- --- --- N Y Y S02035E TB Elev 35'Circulating Water Piping Area x 2,100 10% ... --- --- --- --- N Y Y S02045A TB Elev 45'North Wall (to Elev 93) x 680 3% --- --- --- --- Y N/A Y S02045B TB Elev 45'CB Walkway North Wall x 760 4% ..- --- --- --- Y N/A Y S02045C TB Elev 45'East of Column Line U x 750 4% _---

-. Y N/A Y S02045D TB Elev 45'West of Column Line U x 860 4% --- - ... . Y N/A Y S02045E TB Elev 45'Steam Packing Exhaust Drain TrouRh Flr x _ 1,100 5% --- --- --- -- --- Y S02045F TB Elev 45'Concrete Column/Fir SW Corner Cond A x 1,600 8% --- --- --- --- N Y Y S02045G TB Elev 45' SE Stairwell & Freight Elevator Area x 730 3% --- --- --- --- --- Y N/A Y S02045H TB Elev 45'Survey for Release Facility Floor x 1,200 6% = - .--- --- --- Y N/A Y S02045J TB Elev 45'Survey for Release Facility Walls/Ceil _ _ x 900 4% ---- --- --- --- Y N/A Y S02045K TB Elev 45'Crane Bay & Breezeway (less N Wall) x 950 5% --- --- --- --- Y N/A Y S02063A TB Elev 63'Floor, Walls, Ceiling, & Equipment x 820 4% --- --- --- --- Y N/A Y S02063B TB Elev 63'Main Steam Stop Valve Area x 2,200 10% --- --- --- N Y Y S02063C TB Elev 63'Air Eiector Area on Floor x 1,100 5% --- N Y Y S02069A TB Elev 69'Switchgear Area Floors/Walls/Ceiling ___ x 1,100 5% --- --- --- --- -- Y N/A Y S02093A TB Elev 93'North Wall x 590 3% --- --- -- -- - Y N/A Y S02093B TB Elev 93'Feedwater Heater 5 & 6 Area x 810 4% --- ... .-. --- --- Y N/A Y S02093C TB Elev 93'East Turbine Floor Area x 970 5% --- --- --- --- --- Y N/A Y S02093D TB Elev 93'Cond Air Dischrge Monitor/Ejector Area x _ 1,700 8% -- --- Y N/A Y 4-6

( ( C TRO IAN FINAL SURVEY REPORT- TURRINE & CONTROL BUILDING INTERIORS Table 4-1 Satisfaction of Conditions for Site Release Cl Condition #1 Condition #2 Condition #3 Condition #4

Conclusion:

Survey Description ass Mean Test EM C Sign Test ALARA Satisfies ID Cod2  % of Area Max % of S+ Critical Rnd Levels Remediated Release 1 2 3 Mean DCGL (m2) Value EMC Value Value ALARA? to ALARA? Criteria?

S02093E TB Elev 93'South Turbine Floor and Shroud x 1,100 5% - Y N/A Y S02093F TB Elev 93' West Turbine Floor x _ 1,300 6% --- -.-- --- --- Y N/A Y S02093G TB Elev 93' Main Bay E, So, W Walls & Ceiling x 890 4% - -- --- Y N/A Y S02093H TB Elev 93'Turbine Deck Equipment Surfaces x 760 4% Y N/A Y

_ Control Building S06045A CB Elev 45'I&C Shop & Office Areas _ x 940 4% --- --- --- --- Y N/A Y S06045B CB Elev 45'Counting Room (inside RCA)' x 1,200 16% --- --- --- --- Y N/A Y S06045C CB Elev 45'SE Stairwell (inside RCA)' _ x _ 1,000 13% --- l

• Y N/A Y S06045D CB Elev 45'SE Elev/Shaft/Equip Rm (inside RCA)' l-x _ 1,000 13% --- --- --- --- Y N/A Y S06045E CB Elev 45'RP Offices, Restrooms, & Lobby x 920 4% --- --- --- --- --- Y N/A Y S06045F CB Elev 45'SW Stairwell/Elevator/ShaftVEguip Rm x 1,100 5% -- --- W --- --- Y N/A Y S06045G CB Elev 45'RCA Access/Egress Area (inside RCA)Y _ x _ 1,000 13% l l --- Y N/A Y S06054A CB Elev 54'HVAC and RP/Ops Study/Break Areas _ _ x 920 4% = -- -- _y_ Y N/A Y S06061A CB Elev 61 "'B" Switchgear/Telephone/Mech Rms l_ _ x 850 4% --- --- --- --- Y N/A Y S06065A CB Elev 65"'B" Electrical Auxiliaries x 740 4% --- --- --- --- --- Y N/A Y S06077A CB Elev 77'Cable Spreading Room _ - x 1,100 5% ---- --- --- --- Y N/A Y S06077B CB Elev 77'Elevator Lobby/Computer/Mech Rnis _ x 680 3% --- --- --- Y N/A Y S06093A CB Elev 93' Control Room & Shift Manager's Office ___ x 760 4% --- *--

--- --- Y N/A Y S06093B CB Elev 93'Cold Lab and Elev 102'Viewing Gallery _ _ x 1,100 5% - --- -- --- --- Y N/A Y S06093C CB Elev 93'Containment Access Area _ x _ 1,000 5% - --- ----- ---

_ Y N/A Y S06105A CB Elev 105'Mechanical Room _ - x 920 4% --- --- y N/A Y

'RCA gross activity DCGL of 7,500 dpm/100cm2 applied to these survey units; primary-to-secondary leakage gross activity DCGL of 21,000 dpm/I00cm 2 applied to all other survey units.

4-7

TROJAN FNAr[ .SURVEYRMPORT- TURBRIN & COAITROL BUL fIMWNG INTERIORS

5. FINAL SURVEY CONCLUSION The final survey of the Turbine and Control Building interiors was performed in accordance with the LTP and its implementing procedures. Final survey data of adequate quantity and quality were collected from each of the 48 survey units. The survey data for each survey unit showed:

1. The average residual radioactivity, which included the background distribution, was less than the DCGL.

2. Since there were no small areas of residual radioactivity that exceeded the DCGL, individual measurements did not exceed the EMC DCGL.

3. Since no individual measurements exceeded the DCGL, the average residual radioactivity passed the Sign statistical test.

4. Remediation was performed where it was ALARA to reduce the levels of residual radioactivity to below the concentrations necessary to meet the DCGLs.

These conditions satisfy the site release criteria established in the LTP and the radiological criteria for unrestricted use given in 10 CFR 20.1402 (see Section 1.3). Therefore, it is concluded that the Turbine and Control Building interiors are suitable for release to unrestricted use.

5-1

TROJAN FINA. SUR VEY REPORT- TURRIB'NF & CONTROL Bl lItNG INTERIORS

6. REFERENCES 6-1 Code of Federal Regulations, Title 10, Part 20.1402, "Radiological Criteria for Unrestricted Use."

6-2 Portland General Electric Company Topical Report PGE-1061, "Trojan Nuclear Plant Defueled Safety Analysis Report and License Termination Plan (PGE- 1078)"

6-3 Portland General Electric Company Topical Report PGE-8010, "Trojan Nuclear Quality Assurance Program."

6-4 Portland General Electric Company, "Trojan Nuclear Plant Radiological Site Characterization Report," Revision 0.1, February 8, 1995.

6-1

TROJAN FINAL SURVEY REPORT- TURRINE & CONTROL B1U.IDING INTERIORS APPENDIX A SURVEY PREPARATION ACTIVITIES This appendix provides a general description of decommissioning activities in the nature of a historical assessment that was used to determine the final survey classification of each of the areas within the Turbine and Control Buildings. Detailed decommissioning information as well as a brief radiological history is found in the LTP, Section 3.

The Turbine and Control Buildings were prepared for final survey by a series of decommissioning activities, including radiological characterization, dismantlement or demolition, remediation, and turnover to final survey. Radiological characterization data were gathered and analyzed. The results guided decisions regarding the need for, extent of, and most effective means of remediation. Areas were remediated as needed, and then systematically turned over for final survey. An assessment of the operation and radiological history established the initial classification of areas within the Turbine and Control Buildings.

RADIOLOGICAL CHARACTERIZATION Radiological characterization of the Turbine and Control Buildings was completed in two phases. The initial radiological characterization was performed as Phase I. It is documented in the "Trojan Nuclear Plant Radiological Site Characterization Report," Revision 0.1, dated February 8, 1995. Phase II involved routine radiological surveys, referred to as operational surveys. These surveys were used to support dismantlement and remediation activities. Areas that were not, or could not be, surveyed during Phase I were surveyed during Phase II. Based on the surveys gathered as part of Phase II characterization, the predominant beta-gamma emitters on structure surfaces affected by primary system to secondary system leakage were found to be 60 Co and '37 CS.

DISMANTLEMENT AND DEMOLITION ACTIVITIES Most of the components and equipment in the Turbine and Control Buildings were left as found during plant operations. Highly contaminated structures, equipment, and components were removed and disposed of.

REMEDIATION ACTIVITIES Remaining structural and equipment surfaces were remediated using a variety of techniques ranging from wiping to surface material removal. Removable surface radioactivity was remediated via simple means such as wiping down an area and vacuuming to collect dirt and loose radioactivity from recesses and corners. These were considered good practices and were typically applied. Grinding or abrasive blasting were used to remove fixed radioactivity from steel and surfaces other than concrete. Concrete surfaces were remediated by scabbling.

A-1

TROJAN FINAL SURVEY REPORT- TURBINE & CONTROL BUILDING INTERIORS Remediation levels were established for various types of remediation actions such as scrubbing, grinding, abrasive blasting, and scabbling. Remediation levels were developed using an unbiased analysis of remediation actions that could both avert future dose (a benefit to society) and cost money (a potential detriment to society). They are based on the methodology and assumptions given in the LTP, Section 2.4.2. Where the level of residual radioactivity exceeded the remediation level, the remediation action was taken. Conversely, if the concentration was less than the remediation level, the level of residual radioactivity was considered ALARA and the remediation action was not performned.

The remediation levels applied to the Turbine and Control Building interiors are given below.

Remediation Levels Remediation Action Level (dpm/100 cm 2 )

Action Primary-to-Secondary RCA DCGL Leakage DCGL Hand scrubbing 25,000 7,000 Grinding 30,000 N/A Abrasive blasting 65,000 18,000 Scabbling 78,000 22,000 TURNOVER A systematic approach was established for the turnover of the Turbine and Control Building interiors from the Decommissioning organization to the Final Survey organization.

Dismantlement and remediation activities were completed in areas that could be isolated or controlled in such a manner as to minimize the potential for the reintroduction of contamination from ongoing decommissioning activities in adjacent or nearby areas. These work areas were then prepared for final survey data collection. The Turbine and Control Building interiors were divided into 14 work areas, listed in the following table, each of which was turned over separately.

Prior to turnover, a walkdown of the work area was performed when the final configuration was known, usually near or after the completion of dismantlement and remediation activities. The physical state of the area and the scope of work necessary to prepare it for final survey were assessed during the walkdown. Requirements for access, isolation, and control were also addressed during the walkdown. Support activities necessary to conduct the final survey, such as scaffolding, interference removal, and electrical tag-outs, were identified. Safety concerns such as access to confined spaces, high walls, and ceilings were also identified.

Tools, equipment, and materials not needed for final survey data collection were removed.

Housekeeping and clean-up activities were completed. Scaffolding and other temporary equipment needed for final survey data collection were put in place. Administrative and physical controls were instituted to minimize the possibility of introducing radioactive material from ongoing decommissioning activities in adjacent or nearby areas. These measures included A-2

TROJAN FINAL SUR VEYIREPORT- TURRINE & CONTROL. RU!LIDING INTERIORS personnel training, installation of barriers to control access to the area, installation of postings with access/egress requirements, and removing access to the area.

Turnover List Turnover Checklist Work Area Description Number 34 Turbine Bldg Elev. 27' - all areas 36 Turbine Bldg Elev. 35' - north, east, & south platforms 37 Turbine Bldg Elev. 63' & 69' - all areas 52 Turbine Bldg Elev. 35' - west platform 53 Turbine Bldg Elev. 45' -balance of areas (see # 124, 125, & 141 below) 62 Turbine Bldg Elev. 93' - FW Htr 5/6 area & remediated SW comer area 86 Control Bldg Elev. 61', 77', 93' (except Containment access area), & 105' 105 Turbine Bldg Elev. 45' - train/crane bay & hoistway 115 Turbine Bldg Elev. 93' - balance of areas (see # 62 above) 124 Turbine Bldg Elev. 45' - SE elevator/stairwell 125 Turbine Bldg Elev. 45' - survey for release areas 141 Turbine Bldg Elev. 45' - Control Bldg passageway 144 Control Bldg Elev. 45' & 93' - balance of areas outside RCA 147 Control Bldg Elev. 45' - areas inside RCA (counting room, elevator, stairway)

HISTORICAL ASSESSMENT AND INITIAL CLASSIFICATION Based on an assessment of relevant historical information, an initial classification was assigned to the structural surfaces and equipment remaining following the completion of dismantlement, demolition, and remediation activities.

Information used in the assessment included the operational and radiological history of the area, the remediation activities performed in the area, and the radiological characterization data .

collected during decommissioning prior to turnover. Measurement results given in the following sections are for direct surface beta measurements, unless otherwise noted.

TURBINE BUILDING INTERIOR The Turbine Building interior was generally designated a Class 3 area. Areas where radioactivity was discovered were designated Class 1 areas. Areas which at one time had been within an RCA were designated Class 2 areas. Operational survey measurement results for both Class 2 and Class 3 areas indicated levels of residual radioactivity less than 5,000 dpm/I00 cm 2 .

Operational survey measurements for the Class 1 areas detected radioactivity levels up to 80,000 dpm/100 cm 2 . For Class 2 areas, operational survey measurement results were less than 5,000 dpm/100 cm2 . Smear results for all areas indicated removable surface radioactivity less than 1,000 dpm/100 cm2 .

A-3

TROJAN FINAL SURVEY REPORT- TURRbVE & CONTROL. RUflOIDNG INTFRIORS CONTROL BUILDING INTERIOR The Control Building interior was designated a Class 3 area, with the exception of those areas which at one time had been within an RCA. Those areas were designated Class 2 areas.

Operational survey measurement results for both Class 2 and Class 3 areas indicated levels of residual radioactivity less than 5,000 dpm/l 00 cm 2 . Smear results indicated removable surface radioactivity less than 1,000 dpm/100 cm2 .

A-4

TROJAN FINAL SURVEY REPORT- TURBINEAND CONTROL BUILDING INTERIORS APPENDIX B SURVEY UNIT

SUMMARY

REPORTS - TURBINE BUILDING

-Survey Unit ID Code Page(s)

S02027A. ... B-2 through B-7 S02027B .. B-8 through B-12 S02027C .. B-13 through B-17 S02027D .. B-18 through B-22 S02027E .. B-23 through B-27 S02035A .. B-28 through B-31 S02035B.. B-32 through B-36 S02035C .. B-37 through B-40 S02035D .. B-41 through B-44 S02035E.. B-45 through B-48 S02045A.. B-49 through B-52 S02045B .. B-53 through B-56 S02045C .. B-57 through B-60 S02045D .. B-61 through B-64 S02045E .. B-65 through B-68 S02045F .. B-69 through B-72 S02045G.. B-73 through B-76 S02045H.. B-77 through B-80 S02045J .. B-81 through B-93 S02045K .. B-94 through B-101 S02063A.. B-102 through B-105 S02063B .. B-106 through B-109 S02063C.. B-110 through B-113 S02069A .. B-114 through B-117 S02093A.. B-118 through B-121 S02093B .. B-122 through B-126 S02093C.. B-127 through B-130 S02093D .. B-131 through B-134 S02093E .. B-135 through B-138 S02093F 9..-139 through B-142 S02093G.. B-143 through B-148 S02093H.. B-149 through B-152 B-1

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027A Survey Unit Name: TB 27' Elevation - Neutralizing Tank Room Data Quality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2; 100e+004 Statistical Quantities Measurement Name:

Minimum Value 3.930e+002 Maximum Value 1.164e+003 Range 7.710e+002 Median 8.433e+002.

Std. Deviation 2.179e+002 Mean 7.999e+002 95% UCL 8.674e+002 Measurement Values Location Value Location Value 000001 4.083e+002 000018 5.380e+002 000002 5.266e+002 000019 4. 731e+002 000003 6.639e+002 000020 8.204e+002 000004 9.081e+002 000021 9.882e+002 000005 1.164e+003 000022 8.738e+002 000006 8.852e+002 000023 7.402e+002 000007 9.386e+002 000024 1.076e+003 000008 9.272e+002 000025 9.119e+002 000009 8.318e+002 000026 8.929e+002 000010 8.547e+002 000027 6.487e+002 000011 8.890e+002 000028 6.258e+002 000012 1.023e+003 000029 1.137e+003 000013 1.084e+003 000030 3.930e+002 000014 8.280e+002 000015 8.127e+002 000016 4.235e+002 000017 7.097e+002 B-2

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027A Survey Unit Name: TB 27' Elevation - Neutralizing Tank Room Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 771 Test Value Criteria Acceptable? Median: 844 Range 771 1,089 Pass Mean: 800 Median 0.200 0.500 Pass Std Dev: 218 Mean 800 10,500 Pass Minimum: 393 Std Dev 218 4,200 Pass Maximum: 1,164 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequencv Distribution 80%S 70%

s:40%-v o 20%.09' 10%Sg....'

0%

0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,D000 499 999 1,499 1,999 2,499 2,999 3,499 3.999 4,499 4,999 5,499 Aleasured Radioactivity (dpni/100 cne)

Number of Observation Plot Parameters Interval High End Low End Observations Frequency

1. of measurements: 30 1 499 0 4 13%

1. of intervals: 11 2 999 500 21 70%

Interval increment: 500 3 1,499 1,000 5 17%

Minimum: 0 4 1,999 1,500 0 0%

Maximum: 5,499 5 2,499 2,000 0 0%

6 2,999 2,500 0 0%

Comment: 7 3,499 3,000 0 0%

NONE 8 3,999 3,500 0 0%

9 4,499 4,000 0 0%

10 4,999 4,500 0 0%

11 5,499 5,000 0 0%

Total: 30 100%

B-3

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027A Survey Unit Name: TB 27' Elevation - Neutralizing Tank Room judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 4 Measurement Units: dpm/100cm2 Investigation Level: 21,000 Minimum Value: 763 Maximum Value: 1,308 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/100cm 2 Investigation Level: 2,100 Minimum Value: 5 Mean: 10 Maximum Value: 16 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data.

B-4

(. TROJANFINAL SURVEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

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FINAL SURVEY RESULTS

SUMMARY

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,mmO 5 so 17 ISTUJ LOOKING SOUTH LOOKING NORTH

• T COLLP 77 AT VIY A-A 20AMTULFS DATE TROJAN FINAL SURVEY WI" rL ,73' 1-7.7,oo3 £ I Z 3 4 5 MWMM.AV / /.61 Im TI, fa~ulW.ZDUM TP#K rtm B-6 .

C C TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS c,

FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027A Survey Unit Name: TB Neutralizing Tank Room - 27' Elevation Static Measurement Locations Map m

aso8 IL 45'-r

• @) 0 I L 3 SO CSTEL) MT LOOKING SOUTH LOOKING NORTH W A4 . m A C-CIs

. B.

63SOASO~m LOOKING SOUTH ATv ATVIEW E-S- c> TROJA-N FINL SSURVEY MP REVISI O D D^1EFzzz T 1 ATDCW AT E

__~ ._ 3 z 4 5 12 _-_

t'0 rC F TEAN 2 I-OV-1 AL/ aI-I (1 £IL( I W I T I LD-CSCMUTM-I IrJT" A JZD 1TWt Im g¶vyly lUI

• v B-7

TROJANFINAL SURVEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027B Survey Unit Name: TB Condensate Pump Room - Low Walls/Floor Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e000 Measurement # Of Measurement TYpe Codb Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2. 100e+004 Statistical Quantities Measurement Name:

Minimum Value 7.243e+002 Maximum Value 2.562e+003 Range 1.838e+003 Median 1.614e+003 Std. Deviation 5.089e+002 Mean 1.453e+003 95% UCL 1.611e+003 Measurement Values Location Value Location Value 000001 1.009e+003 000018 1.067e+003 000002 1. 102e+003 000019 7.898e+002 000003 8.553e+002 000020 7.243e+002 000004 1. 691e+003 000021 2.058e+003 000005 1.871e+003 000022 1.762e+003 000006 8.630e+002 000023 9.632e+002 000007 1.807e+003 000024 1.167e+003 000008 1 .910e+003 000025 1.536e+003 000009 1.826e+003 000026 1.955e+003 000010 9.092e+002 000027 1.929e+003 000011 1.936e+003 000028 1.897e+003 000012 9.786e+002 000029 1.820e+003 000013 1.787e+003 000030 1.916e+003 000014 9.169e+002 000015 8.630e+002 000016 2.562e+003 000017 1.117e+003 B-8

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS SUAMMARY Survey Unit ID Code: S02027B Survey Unit Name: TB Condensate Pump Room - Low Walls/Floor Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 1,838 Test Value Criteria Acceptable? Median: 1,614 Range 1,838 2,544 Pass Mean: 1,453 Median 0.316 0.500 Pass Std Dev: 509 Mean 1,453 16,800 Pass Minimum: 724 Std Dev 509 4,200 Pass Maximum: 2,562 All data less than DCGL; Sign statistical test not required.. DCGL: 21,000 Number of Observation Plot Parameters Interval High End Low End Observations Frequency

1. of measurements: 30 1 499 0 0 0%

1. of intervals: 11 2 999 500 9 30%

Interval increment: 500 3 1,499 1,000 5 17%

Minimum: 0 4 1,999 1,500 14 47%

Maximum: 5,499 5 2,499 2,000 1 3%

6 2,999 2,500 1 3%

Comment: 7 3,499 3,000 0 0%

NONE 8 3,999 3,500 0 0%

9 4,499 4,000 0 0%

10 4,999 4,500 0 0%

11 5,499 5,000 0 0%

Total: 30 100%

B-9

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027B Survey Unit Name: TB Condensate Pump Room - Low Walls/Floor Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 100 Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 1,027 Maximum Value: 13,040 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/lOOcm2 Investigation Level: 2,100 Minimum Value: 2 Mean: 9 Maximum Value: 18 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investipation Summary No investigation required for this survey unit. No anomalous measurement data.

B-10

(

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027B Survey Unit Name: TB Condensate Pump Room - Low Walls/Floor Static Measurement Locations Map

%4AI-L I MM1$\-2SOM LONG SOTH AT CoLLe 71 LOOING NORTH LOOKN EAST ATVMl - ATROUNLE S O)AM I TROJAN FINAL SURVEY IK. Son27027I8 S10N "M s k2TE D .

• I 2 3 4 S PIWMPDYMy P4^ED BY RC IFC ISM l DATE s>i- I 91-27-63 2 2

T1DECHP14 7rox;/Z0-j bfi -. =aIZ AMX0CtR2 C BY 9=TIC2 Om M PL_ CaB 43 Mi" C-461 ILE"ATME VIW" s57?/Cs B-1I

C (c TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS

(

FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027B Survey Unit Name: TB Condensate Pump Room - Low Walls/Floor Static Measurement Locations Man LOOKING WEST AT M. ME T I TpROTJN PT1061 I CUIVi HS~~~I Isef71lno I_ t

• tre I ___ I _M NO. I M.

I IVAXZ zE., rR7AM1 By R C RAYMOO IREMM21DATE I M Lovm BY I IMo RVWDiMC IC-4ha lll 2 t / .3* FEMM WAM WIATEERt ~ nUMP 1I I

F KMI anxwK YEW I tB Sr-rICS B-12

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027C Survey Unit Name: TB 27' Elevation - East Side Turbine Sump Data Oualitv Values Type 1 Error  : 5..000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN . WRS 1 30 DPM/100 CM2 2.100e+004 Statistical Quantities Measurement Name:

Minimum Value 8.711e+002 Maximum Value 2.846e+003 Range 1.975e+003 Median . 1.994e+003 Std. Deviation 4.864e+002 Mean 1.938e+003 95% UCL 2.088e+003 Measurement Values Location Value Location Value 000001 2.078e+003 000018 2.097e+003 000002 2.291e+003 000019 1.826e+003 000003 2.846e+003 000020 1.858e+003 000004 2.091e+003 000021 1.678e+003 000005 1.897e+003 000022 1. 613e+003 000006 2.568e+003 000023 1.878e+003 000007 1.981e+003 000024 1.723e+003 000008 2.665e+003 000025 1.800e+003 000009 2.471e+003 000026 2.258e+003 000010 2.007e+003 000027 9.292e+002 000011 2.149e+003 000028 1. 129e+003 000012 2.065e+003 000029 8.711e+002 000013 1.878e+003 000030 8.904e+002 000014 2.239e+003 000015 1. 891e+003 000016 2.349e+003 000017 2. llOe+003 B-13

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027C Survey Unit Name: TB 27' Elevation - East Side Turbine Sump Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 1,975 Test Value Criteria Acceptable? Median: 1,994 Range 1,975 2,432 Pass Mean: 1,938 Median 0.116 0.500 Pass Std Dev: 486 Mean 1,938 16,800 Pass Minimum: 871 Std Dev 486 4,200 Pass Maximum: 2,846 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 45% -

40%1

>. 35% _ _ '*

30%

0  % -0

° '°Y' S$1 .' pb.. heI

'5%

o 10 % I ~tr,

.i1 $ti5-0 S00 1,000 1,500 2,000 2.500 3.000 3.500 4,000 4.500 5,000 499 999 1,499 1.999 2,499 2.999 3.499 3,999 4.499 4.999 5,499 Measured Radioactivity (dpmi/OO cm 2 )

Number of Observation Plot Parameters Interval High End Low End Observations Frequency

1. of measurements: 30 1 499 0 0 0%

1. of intervals: 11 2 999 500 3 10%

Interval increment: 500 3 1,499 1,000 1 3%

Minimum: 0 4 1,999 1,500 11 37%

Maximum: 5,499 5 2,499 2,000 12 40%

6 2,999 2,500 3 10%

Comment: 7 3,499 3,000 0 0%

NONE 8 3,999 3,500 0 0%

9 4,499 4,000 0 0%

10 4,999 4,500 0 0%

11 5,499 5,000 0 0%

Total: 30 100%

B-14

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027C Survey Unit Name: TB 27' Elevation - East Side Turbine Sump Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 100 Measurement Units: dpmn/lOOcm 2 Investigation Level: 21,000 Minimum Value: 593 Maximum Value: 3,230 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/lOOcm 2 Investigation Level: 2,100 Minimum Value: 5 Mean: 9 Maximum Value: 21 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data.

B-15

C C TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS

(

FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Codc: S02027C Survey Unit Name: TB 27' Elevation - East Side Turbine Sump Static Measurement Locations Map I4 LOOKING WEST Al CDLLiC T

/

PLAN VIEW OF ROOM 82 AT fL..W4" SINTUfS nRWT DATE TROJAN FINAL SURVEY 11, r.

. 45r MPNM W2SZ7C3t I REtIS1C4NO. H" TEIOGm i, PREPARED BY iR C RAYMON AREVIW4 SIOWE I-

_9_S- I FI 2 3 '4 CED BY __IV __EIE E C-4S1

.I---

TEaCN" 2, hed (t'& 11 I 1--2.0 SCM.! S( nt R IwT.Mfor fI P OSM ALD VkV AMA

r. . rI .w I"e a _ - ~ v B-16

(I C TROJAN FINAL SUIRVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS

(

FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027C Survey Unit Name: TB 27' Elevation - East Side Turbine Sump Static Measurement Locations Map

.EL 11H<r XW EL.

Si-ye.S '17 30 o LOOKING WEST LOOKING SOUTh Tn ba aiAAT AT VIEWS-M~

Tt 4 M 4 SO 71

_ _ _ _ a.i-r lo I oLL34'r 24 S .M M.. W-LOOKING NORTH LOOKING EAST AT EV C-C AT EY D-0 TROJAN FINAL SURVEY St~4A U~ 8 PA 4T Cw *"D. e ~ 66" 2 CS2 i~E II 4 SL S AT B3 SPN D.EVISEbATE 4 5 P FT S W51KIE IW Y CA £1DWO PM E 10-4 Tw04 2 =WE A-4*DNM WXNEMEATrwI Y M Wu MMW

,E B-17

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027D Survey Unit Name: TB 27' Elevation - Condensate Pump Room Upper Walls and Ceiling Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2.100e+004 Statistical Quantities Measurement Name:

Minimum Value 3.352e+002 Maximum Value 1.160e+003 Range 8.248e+002 Median 5.567e+002 Std. Deviation 2.868e+002 Mean 6.940e+002 95% UCL 7.829e+002 Measurement Values Location Value Location Value 000001 9.131e+002 000018 4.007e+002 000002 8.784e+002 000019 4 .315e+002 000003 9. 285e+002 000020 3. 776e+002 000004 1. 152e+003 000021 8.322e+002 000005 1.067e+003 000022 4.777e+002 000006 5.586e+002 000023 4.354e+002 000007 9.285e+002 000024 5.432e+002 000008 4. 315e+002 000025 3.352e+002 000009 9.632e+002 000026 5.548e+002 000010 8. 514e+002 000027 4.084e+002 000011 6.049e+002 000028 3.930e+002 000012 1.067e+003 000029 4.662e+002 000013 1.133e+003 000030 4.970e+002 000014 1. llOe+003 000015 1.160e+003 000016 4.546e+002 000017 4.662e+002 B-18

TROJAN FINAL SUR VEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027D Survey Unit Name: TB 27' Elevation - Condensate Pump Room Upper Walls and Ceiling Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 825 Test Value Criteria Acceptable? Median: 557 Range 825 1,434 Pass Mean: 694 Median 0.478 0.500 Pass Std Dev: 287 Mean 694 10,500 Pass Minimum: 335 Std Dev 287 4,200 Pass Maximum: 1,160 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequencv Distribution 50-/

45%

rxs _ . _ _ _ _ _ _ _ _ _ _ _

430% ~

35%

25%

20V% -

15% _ j_

.0 10 ~1 5% - ' T '

01%

0 Soo 1,000 1,500 2,000 2,500 3,000 3.500 4,000 4,500 5.000 499 999 1.499 1.999 2,499 2.999 3,499 3.999 4,499 4,999 5.499 Measured Radioactivity (dprnO100 cm2 )

Number of Observation Plot Parameters Interval High End Low End Observations Frequency

1. of measurements: 30 1 499 0 13 43%

1. of intervals: 11 2 999 500 11 37%

Interval increment: 500 3 1,499 1,000 6 20%

Minimum: 0 4 1,999 1,500 0 0%

Maximum: 5,499 5 2,499 2,000 0 0%

6 2,999 2,500 0 0%

Comment: 7 3,499 3,000 0 0%

NONE 8 3,999 3,500 0 0%

9 4,499 4,000 0 0%

10 4,999 4,500 0 0%

11 5,499 5,000 0 0%

Total: 30 100%

B-19

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027D Survey Unit Name: TB 27' Elevation - Condensate Pump Room Upper Walls and Ceiling Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage(%): 4 Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 523 Maximum Value: 1,247 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/lOOcm 2 Investigation Level: 2,100 MinimumValue: 2 Mean: 11 Maximum Value: 18 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data.

B-20

( Cd TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS

(

FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027D Survey Unit Name: TB 27' Elevation- Condensate Pump Room Upper Walls and Ceiling Static Measurement Locations Map 7T 77 t 71 7 LOOIN SOT T 4"' @ ' .

_______CEVE PLAN VIEW OF RWHM 82 MRTW.LO LOOKIN VEST------

AT__

COL LIM v

• 4 r. T

. EL TRANFNA-URE LOOKING NORTH LOOK1NG EAST fL/LM -- -'-ztAT ATa COL 8

/a L0SWT0KIWUNAWEST \L. a7M- Ms. HD SIN ISE

-- } 3KI OKING -A- - MC ,, I SN4A I 3l-27 B-21

C, C TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS C

FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027D Survey Unit Name: TB 27' Elevation - Condensate Pump Room Upper Walls and Ceiling Static Measurement Locations Map 4

LOOKMG SwH AT aLx W 71

a. 45'-V a.7-

a. 27-V LOOKING NORTH LOOKING EAST AT YIEW - AT CCULLE S 21NAR MM CLeM DATE TROJAN. FINAL SURVEY K.? M SS22027D AMMON -

T a oe;5~

Ae d.; Sf-,7-200o - 9 I 2 3 4 5 pfAFD BY fRC RAYH>O REVISICNDATE 1I-27-43 SE&E 9(TEUt aEC BY DIVIO REC! _ .C-41 TIECHMM 2 br;Ll W7-s CONEUATE tFW AREA rawcET I PI#LM.m rVLF A 1 VA 1WW VIEW f U 1 __X W B-22

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027E Survey Unit Name: TB 27' Elevation - Condensate Pump and Heater Drain Pits Data Quality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2. 100e+004 Statistical Quantities Measurement Name:

Minimum Value 2. 819e+002 Maximum Value 1.131e+003 Range 8:491e+002 Median 4.203e+002 Std. Deviation 1.607e+002 Mean 4.470e+002 95% UCL 4.968e+002 Measurement Values Location Value Location Value 000001 6.750e+002 000018 5.368e+002 000002 3.338e+002 000019 5.444e+002 000003 6. 156e+002 000020 4.332e+002 000004 3.857e+002 000021 4.448e+002 000005 3. 931e+002 000022 4.639e+002 000006 2.819e+002 000023 4.409e+002 000007 3.041e+002 000024 4. 601e+002 000008 3.523e+002 000025 5.291e+002 000009 2.930e+002 000026 4.984e+002 000010 3.152e+002 000027 5.023e+002 000011 3.004e+002 000028 3.719e+002 000012 3.264e+002 000029 3. 911e+002 000013 3.746e+002 000030 4. 601e+002 000014 4.265e+002 000015 4. 117e+002 000016 4.141e+002 000017 1. 131e+003 B-23

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027E Survey Unit Name: TB 27' Elevation - Condensate Pump and Heater Drain Pits Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 849 Test Value Criteria Acceptable? Median: 421 Range 849 804 See comment below Mean: 447 Median 0.165 0.500 Pass Std Dev: 161 Mean 447 10,500 Pass Minimum: 282 Std Dev 161 4,200 Pass Maximum: 1,131 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Freauencv Distribution 90%

SO%

70 /.

W 60% _

1..

50%-

40%

30%

I.

0 20%

10%

0 Soo 1.000 14,00 2,000 2.500 3.000 34500 4,000 4.500 S.000 499 999 1.499 1.999 2.499 2.999 3,499 3,999 4,499 4999 5,499 2

Measured Radioactivity (dpm lOO cm )

Number of Observation Plot Parameters Interval High End Low End Observations Frequency

1. of measurements: 30 1 499 0 23 77%

1. of intervals: 11 2 999 500 6 20%

Interval increment: 500 3 1,499 1,000 1 3%

Minimum: 0 4 1,999 1,500 0 0%

Maximum: 5,499 5 2,499 2,000 0 0%

6 2,999 2,500 0 0%

Comment: 7 3,499 3,000 0 0%

Range failure is a test artifact due to a very 8 3,999 3,500 0 0%

small standard deviation, and data set range. 9 4,499 4,000 0 0%

Range test is probably not appropriate for a 10 4,999 4,500 0 0%

data set where 100% of the values are less 11 5,499 5,000 0 0%

than 1,250 dpm. All data are valid & accepted. Total: 30 100%

B-24

TROJANFINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027E Survey Unit Name: TB 27' Elevation - Condensate Pump and Heater Drain Pits Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 4 Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 811 Maximum Value: 2,641 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm,1/OOcm 2 Investigation Level: 1,050 Minimum Value: 2 Mean: 9 Maximum Value: 16 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data.

B-25

C C S TROJAN FINAL SUR VEY REPORT- TURBBINE AND CONTROL BUILDING INTE'RIORS

(

FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02027E Survey Unit Name: TB 27' Elevation - Condensate Pump and Heater Drain Pits Static Measurement Locations Map m M 0 m PLAN VIEW OF ROOH 82 EL27- J.5 ,y /.I 1 i

- I ISO H 32 so "-

Ž1 ICaV CST=} W 3WEM)

' I, BOlr A1 F= 1,4 M61 DOEVELOPED ELEVATION FI3T-2 p Mg'/J PLudl( 'pir ATI' Ti G3_w p'A/-J _ rrr "bINA-5A107 bor mOr DEVELOPED ELEVATION pump pir w f frl.

lTE I-DW73- ~ w Im0n nw a r / 1 ... SI ___

TROJAN FINAL SURVEY 0 A a S Iiw _ W z YIIe 0.

1sn I e PPrRED r-JJffOWS REVISM" i AYE 1 N211-63 tRX W OEC BY DW WREFE Ic-4n TOiM 2

• -v 2b:

v _

.4-g-o

- _ i m 2A FEW V W P-WIru g t<

_T _ rrZ 4 _ i 1 ,- , vw- . _z I B-26

C TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Codc: S02027E Survey Unit Name: TB 27' Elevation - Condensate Pump and Hcater Drain Pits Static Measurement Locations Map I I 40 m m m PLAN VIEW OF ROOM 82 I1 32 so N -

US SO

&rnhtlOr DEVELOPED ELEVATION CopJvP A7p p~mp par aE nf nT.

m Im X I I TROJAN FINAL SURVEY

. boLtcs

-  ?~mY S 4wu f l4. ~ .a ~IrI 2  ; - s

• t PREPMR BY 27E tJJf.W t 1 1RI"VIBIt14DATE On-10-4.1 Ufl96siqotm5 k S }( > qg1/Zm3 IED BY D FEI WE I

WR M z

P

_mO 1, ... - - ... .....

B-27

TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035A Survey Unit Name: TB 35' Elevation - East Side Turbine Data Ouality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2.100e+004 Statistical Quantities Measurement Name:

Minimum Value 3.583e+002 Maximum Value 1.244e+003 Range 8.857e+002 Median 5.413e+002 Std. Deviation 2.897e+002 Mean 6.752e+002 95% UCL 7.650e+002 Measurement Values Location Value Location Value 000001 8.900e+002 000018 4.623e+002 000002 9.978e+002 000019 9.555e+002 000003 4.469e+002 000020 1. 121e+003 000004 8.437e+002 000021 9. 401e+002 000005 9.593e+002 000022 5.856e+002 000006 9.940e+002 000023 5.124e+002 000007 4.431e+002 000024 9.362e+002 000008 3.583e+002 000025 9.054e+002 000009 4.122e+002 000026 4.700e+002 000010 3.622e+002 000027 3.891e+002 000011 4.007e+002 000028 5.702e+002 000012 3.853e+002 000029 1.244e+003 000013 9.670e+002 000030 3.737e+002 000014 4.007e+002 000015 1.067e+003 000016 3.622e+002 000017 5.008e+002 B-28

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035A Survey Unit Name: TB 35' Elevation - East Side Turbine Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 886 Test Value Criteria Acceptable? Median: 541 Range 886 1,449 Pass Mean: 675 Median 0.463 0.500 Pass Std Dev: 290 Mean 675 10,500 Pass Minimum: 358 Std Dev 290 4,200 Pass Maximum: 1,244 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 50%

45%

40%

5, 35% "

'.301%

25%

201%

0 500 1,000 I,500 2.000 2.500 3.000 3,500 4,000 4,500 5,000 499 999 1.499 1.999 2.499 2.999 3.499 3.999 4.499 4,999 5.499 Iseasured Radioactivity (dpnV100 cm2)

Number of Observation Plot Parameters Interval High End Low End Observations Frequency

1. of measurements: 30 1 499 0 13 43%

1. of intervals: 11 2 999 500 14 47%

Interval increment: 500 3 1,499 1,000 3 10%

Minimum: 0 4 1,999 1,500 0 0%

Maximum: 5,499 5 2,499 2,000 0 0%

6 2,999 2,500 0 0%

Comment: 7 3,499 3,000 0 0%

NONE 8 3,999 3,500 0 0%

9 4,499 4,000 0 0%

10 4,999 4,500 0 0%

11 5,499 5,000 0 0%

Total: 30 100%

B-29

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035A Survey Unit Name: TB 35' Elevation - East Side Turbine Jud2mental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 10 Measurement Units: dpmlOOcm2 Investigation Level: 21,000 Minimum Value: 478 Maximum Value: 2,130 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/100cm 2 Investigation Level: 1,050 Minimum Value: 2 Mean: 10 Maximum Value: 22 Standard Deviation: 5 Discussion of Anomalous Measurement Data Investigation Summary Reason for Investigation: One scan measurement (location 018) exceeded the investigation level.

Elevated Measurement Comparison (EMC):

DCGL (Investigation Level): 21,000 Measurement Units: dpm/l OOcm 2 Maximum Value: 29,320 Size of Area Exceeding DCGL (m2 ): 2 Size of Survey Unit (m2 ): 795 Survey Unit Area >DCGL (%): <0.3 EMC Value: N/A Action Taken: Created a new Class I survey unit to encompass small area delineated by investigation survey.

Basis for Action Taken: Research of past maintenance activities for this area identified a steam trap leak that was repaired in 1989, which may have been the source of this contamination.

B-30

( CF TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035A Survey Unit Name: TB 35' Elevation - East Side Turbine Static Measurement Locations Map

.4~

PLAN VIEW 1- TRO-JAN FINAL SURVEY no"ne EAT!

ma Ad ; Je/'//I A. I 9.4T 7I " E YUMA REM30I DATE )2763 M." X - '/ - s-Zv..G . If ELLTATZ t 3."-f lotai4 2 N o fM

, . S z M Qw

- - - P IL imsw~ 0 u'. hLamITWA bW IrItT ICz B-31

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035B Survey Unit Name: TB 35' Elevation - Northeast Comer Small Floor Area Data Ouality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.OOOe+O0O Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2.100e+004 Statistical Quantities Measurement Name:

Minimum Value 1.866e+003 Maximum Value 3.874e+003 Range 2.008e+003 Median 2.942e+003 Std. Deviation 5.225e+002 Mean 2. 812e+003 95% UCL 2.974e+003 Measurement Values Location Value Location Value 000001 2.208'e+003 000018 2.069e+003 000002 2.535e+003 000019 2.693e+003 000003 1.952e+003 000020 3.107e+003 000004 2.599e+003 000021 2.757e+003 000005 2.780e+003 000022 3. 182e+003 000006 3.246e+003 000023 2.983e+003 000007 3. 050e+003 000024 3.329e+003 000008 3.874e+003 000025 3. 005e+003 000009 3.348e+003 000026 2.445e+003 000010 2.900e+003 000027 2.539e+003 000011 3.272e+003 000028 1.866e+003 000012 3.359e+003 000029 2.309e+003 000013 3.363e+003 000030 1.926e+003 000014 3.276e+003 000015 3. 107e+003 000016 3.182e+003 000017 2. 106e+003 B-32

TROJANFINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035B Survey Unit Name: TB 35' Elevation - Northeast Corner Small Floor Area Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 2,008 Test Value Criteria Acceptable? Median: 2,942 Range 2,008 2,612 Pass Mean: 2,812 Median 0.247 0.500 Pass Std Dev: 522 Mean 2,812 16,800 Pass Minimum: 1,866 Std Dev 522 4,200 Pass Maximum: 3,874 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 50%

45% -

40%

1 35% . '

I.30%-

s 25% -

ci20V.6

°10% *+;_'5 ^

5%

0% .H 0 500 1.000 1.500 2,000 2.500 3,000 3,500 4,000 4,500 5.000 499 999 1.499 12999 2,499 2,999 3.499 3.999 4,499 4.999 5.499 Measured Radioactivity (dpm100 cm2)

Number of Observation Plot Parameters Interval High End Low End Observations Frequency

1. of measurements: 30 1 499 0 0 0%

1. of intervals: 11 2 999 500 0 0%

Interval increment: 500 3 1,499 1,000 0 0%

Minimum: 0 4 1,999 1,500 3 10%

Maximum: 5,499 5 2,499 2,000 5 17%

6 2,999 2,500 8 27%

Comment: 7 3,499 3,000 13 43%

NONE 8 3,999 3,500 1 3%

9 4,499 4,000 0 0%

10 4,999 4,500 0 0%

11 5,499 5,000 0 0%

Total: 30 100%

B-33

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035B Survey Unit Name: TB 35' Elevation - Northeast Corner Small Floor Area Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 33 Measurement Units: dpm/100cm2 Investigation Level: 21,000 Minimum Value: 3,539 Maximum Value: 3,539 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/100cm 2 Investigation Level: 2,100 Minimum Value: 0 Mean: 10 Maximum Value: 19 Standard Deviation: 5 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data.

B-34

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035B Survey Unit Name: TB 35' Elevation - Northeast Corner Small Floor Area Static Measurement Locations Map

/I-J B-35

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035B Survey Unit Name: TB 35' Elevation - Northeast Corner Small Floor Area Static Mcasuremcnt Locations Map B-36

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035C Survey Unit Name: TB 35' Elevation - West Side Condenser Area and Sump Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2. 100e+004 Statistical Quantities Measurement Name:

Minimum Value 5.607e+002 Maximum Value 2.168e+003 Range- 1.607e+003 Median 1. 175e+003 Std. Deviation 2.852e+002 Mean 1.171e+003 95% UCL 1.259e+003' Measurement Values Location Value Location Value 000001 1. 173e+003 000018 6. 081e+002 000002 1.264e+003 000019 5.607e+002 000003 1. 192e+003 000020 1.050e+003 000004 1.311e+003 000021 1.287e+003 000005 1.216e+003 000022 1.145e+003 000006 1.153e+003 000023 1.133e+003 000007 1. 169e+003 000024 1.046e+003 000008 9.634e+002 000025 1.489e+003 000009 1.062e+003 000026 1.327e+003 000010 1.220e+003 000027 2. 168e+003 000011 1.177e+003 000028 1.177e+003 000012 1.133e+003 000029 1.117e+003 000013 1. 331e+003 000030 1.042e+003 000014 1.303e+003 000015 6.357e+002 000016 1.271e+003 000017 1.406e+003 B-37

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035C Survey Unit Name: TB 35' Elevation - West Side Condenser Area and Sump Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 1,607 Test Value Criteria Acceptable? Median: 1,175 Range 1,607 1,426 See comment below Mean: 1,171 Median 0.014 0.500 Pass Std Dev: 285 Mean 1,171 10,500 Pass Minimum: 561 Std Dev 285 4,200 Pass Maximum: 2,168 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Number of Observation Plot Parameters Interval High End Low End Observations Frequency

1. of measurements: 30 1 499 0 0 0%

1. of intervals: 11 2 999 500 4 13%

Interval increment: 500 3 1,499 1,000 25 83%

Minimum: 0 4 1,999 1,500 0 0%

Maximum: 5,499 5 2,499 2,000 1 3%

6 2,999 2,500 0 0%

Comment: 7 3,499 3,000 0 0%

Range failure is a test artifact due to a very 8 3,999 3,500 0 0%

small standard deviation and a single 9 4,499 4,000 0 0%

measurement value greater than 1,500 dpm. 10 4,999 4,500 0 0%

All data are valid and accepted. 11 5,499 5,000 0 0%

Total: 30 100%

B-38

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035C Survey Unit Name: TB 35' Elevation - West Side Condenser Area and Sump Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 7 Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 542 Maximum Value: 4,279 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/lOOcm 2 Investigation Level: 1,050 Minimum Value: 4 Mean: 10 Maximum Value: 18 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data.

B-39

c Ci TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS C

FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035C Survey Unit Name: TB 35' Elevation - West Side Condenser Area and Sump Static Measurement Locations Map 4q im L MW AEA TROJAN FINAL SURVEY II1AWM>_ CD2S35 ' I wrYIW4 .- Ib REVISIN 01TE l I-27--

7ur s .. - .*A-A) Iij I*Z X .dn_ D10/1 ' 0 1 2 3 4 5 PfP"?RD BY aIECE BY H E TURSA

_ DdO IFEOCE 17FxVH a __I2.O 1 1;MLO(J33 s

'SCALE (METERS1 A IP

^i6M 7UPIA BmDDM ELEVA.IN 3-fT

.-) //f7 /-

B-40

TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035D Survey Unit Name: TB 35' Elevation - Southwest Corner by Condenser "A" Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 bPM/100 CM2 2.100e+004 Statistical Quantities Measurement Name:

Minimum Value 9.386e+002 Maximum Value 3.441e+003 Range 2.502e+003 Median 1.721e+003 Std. Deviation 6.202e+002 Mean 1.606e+003 95% UCL 1.798e+003 Measurement Values Location Value Location Value 000001 2.343e+003 000018 2.171e+003 000002 2.286e+003 000019 2.063e+003 000003 2.121e+003 000020 3.441e+003 000004 2. 102e+003 000021 1.835e+003 000005 2.387e+003 000022 1.854e+003 000006 1.030e+003 000023 1.721e+003 000007 1.026e+003 000024 1.721e+003 000008 9.921e+002 000025 1.867e+003 000009 1.038e+003 000026 1.007e+003 000010 1. llOe+003 000027 9.386e+002 000011 1.049e+003 000028 1.187e+003 000012 1.007e+003 000029 9.844e+002 000013 1. 171e+003 000030 1.034e+003 000014 9.692e+002 000015 2. 108e+003 000016 1.905e+003 000017 1.721e+003 B-41

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035D Survey Unit Name: TB 35' Elevation - Southwest Corner by Condenser "A" Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 2,502 Test Value Criteria Acceptable? Median-' 1,721 Range 2,502 3,101 Pass Mean: 1,606 Median 0.185 0.500 Pass Std Dev: 620 Mean 1,606 16,800 Pass Minimum: 939 Std Dev 620 4,200 Pass Maximum: 3,441 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frenuencv Distribution 35%

>a I..

I

.0 0 500 1,000 1,500 2.000 2.500 3.000 3,500 4.000 4,500 5,000 499 999 1.499 1.999 2.499 2.999 3,499 3.999 4.499 4.999 5,499 Measured Radioactivity (dpmn100 cmI)

Number of Observation Plot Parameters Interval High End Low End Observations Frequency

1. of measurements: 30 1 499 0 0 0%

1. of intervals: 11 2 999 500 4 13%

Interval increment: 500 3 1,499 1,000 10 33%

Minimum: 0 4 1,999 1,500 7 23%

Maximum: 5,499 5 2,499 2,000 8 27%

6 2,999 2,500 0 0%

Comment: 7 3,499 3,000 1 3%

NONE 8 3,999 3,500 0 0%

9 4,499 4,000 0 0%

10 4,999 4,500 0 0%

11 5,499 5,000 0 0%

Total: 30 100%

B42

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035D Survey Unit Name: TB 35' Elevation - Southwest Corner by Condenser "A" Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 100 MeasurementUnits: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 1,196 Maximum Value: 5,372 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/lOOcm 2 Investigation Level: 2,100 Minimum Value: 3 Mean: 9 Maximum Value: 16 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data.

B-43

C TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035D Survey Unit Name: TB 35' Elevation - Southwest Corner by Condenser "A" Static Measurement Locations Man

-4

- I I EL-I LOOKING SOUTH LOOKING WEST SOUTH WALL WEST WALL '

PLAN VIEW 51"rMnS Sreg DATE TROQJAN FINAL SURVEY LMAWlOI C. ftEVISlMu M~ Pi

. . 0 1 2 3 4 5 rI W Bya Mi YUM IacV1SMNDAt jI1-2&-63 TEOMa, 2 de4 SCALE WMETERS) CHM BYD-W 1EcE AMC.A DURIIM RT bimRnDe EILEYATN35-Ff

-srW r 1 B-44

i TROJANFINAL SURVEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035E Survey Unit Name: TB 35' Elevation - Circ Vater Piping Area Data Quality Values Type. 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2.100e+004 Statistical Quantities Measurement Name:

Minimum Value 8.564e+002 Maximum Value 1.206e+004 Range 1.120e+004 Median 1.420e+003 Std. Deviation 2.372e+003 Mean 2.146e+003 95% UCL 2. 881e+003 Measurement Values Location Value Location Value 0000 01 9.708e+002 000018 1.454e+003 000002 9.413e+002 000019 2.163e+003 000003 8.564e+002 000020 2.156e+003 000004 1.104e+003 000021 1.602e+003 000005 9.302e+002 000022 1.362e+003 000006 9.450e+002 000023 1.281e+003 000007 1.203e+003 000024 1.381e+003 000008 1.691e+003 000025 1.226e+003 000009 1.986e+003 000026 1.454e+003 000010 8.627e+003 000027 1.333e+003 000011 1.528e+003 000028 1.436e+003 000012 1.206e+004 000029 1.347e+003 000013 1.499e+003 000030 1.403e+003 000014 1.381e+003 000015 2.200e+003 000016 4.481e+003 000017 2.366e+003 13-45

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035E Survey Unit Name: TB 35' Elevation - Circ Water Piping Area Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 11,204 Test Value Criteria Acceptable? Median: 1,420 Range 11,204 11,862 Pass Mean: 2,146 Median 0.306 0.500 Pass Std Dev: 2,372 Mean 2,146 16,800 Pass Minimum: 856 Std Dev 2,372 4,200 Pass Maximum: 12,060 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Freuencv Distribution 70%

U UI-

,0 0o 0 1.500 3,000 4,500 6,000 7.500 9,000 10.500 12.000 13.500 15.000 1.499 2.999 4,499 5.999 7.499 S.999 10.499 11.999 13.499 14.999 16.499 Measured Radioactivity (dpmI100 cm 2 )

Number of Observation Plot Parameters Interval High End Low End Observations Frequency

1. of measurements: 30 1 1,499 0 19 63%

1. of intervals: 11 2 2,999 1,500 8 27%

Interval increment: 1,500 3 4,499 3,000 1 3%

Minimum: 0 4 5,999 4,500 0 0%

Maximum: 16,499 5 7,499 6,000 0 0%

6 8,999 7,500 1 3%

Comment: 7 10,499 9,000 0 0%

NONE 8 11,999 10,500 0 0%

9 13,499 12,000 1 3%

10 14,999 13,500 0 0%

11 16,499 15,000 0 0%

Total: 30 100%

B-46

TROJAN FINAL SURVEY REPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035E Survey Unit Name: TB 35' Elevation - Circ Water Piping Area Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 100 Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 1,091 Maximum Value: 19,170 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/lOOcm 2 Investigation Level: 1,050 Minimum Value: 5 Mean: 11 Maximum Value: 33 Standard Deviation: 5 Discussion of Anomalous Measurement Data Investigation Summarv No investigation required for this survey unit. No anomalous measurement data.

B-47

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02035E Survey Unit Name: TB 35' Elevation - Cire Water Piping Area Static Measurement Locations Map ki A.N ZZE

,zt B-48

TROJANFIXAL SURVEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045A Survey Unit Name: TB 45' -93' Elevations -North Interior Wall Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2.100e+004 Statistical Quantities Measurement Name:

Minimum Value 4.693e+002 Maximum Value 1. 015e+003 Range 5.457e+002 Median 6.277e+002 Std. Deviation 1.556e+002 Mean 6.794e+002 95% UCL 7.277e+002 Measurement Values Location Value Location Value 000001 9. 081e+002 000018 5. 113e+002 000002 9.425e+002 000019 5.800e+002 000003 5.151e+002 000020 5.876e+002 000004 1. Olle+003 000021 5.495e+002 000005 8.738e+002 000022 6. 181e+002 000006 1. 015e+003 000023 6.296e+002 000007 9.425e+002 000024 5.533e+002 000008 5.685e+002 000025 6.372e+002 000009 5. 914e+002 000026 5.189e+002 000010 7.708e+002 000027 6. 181e+002 000011 7.822e+002 000028 6.792e+002 000012 6.296e+002 000029 5.876e+002 000013 7.250e+002 000030 6.716e+002 000014 4.693e+002 000015 6.830e+002 000016 6.258e+002 000017 5.876e+002 B-49

TROJANFINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045A Survey Unit Name: TB 45' - 93' Elevations -North Interior Wall Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 546 Test Value Criteria Acceptable? Median: 628 Range 546 778 Pass Mean: 680 Median 0.331 0.500 Pass Std Dev: 156 Mean 680 10,500 Pass Minimum: 469 Std Dev 156 4,200 Pass Maximum: 1,015 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 100%

90% -

80%.

,~70%

t.60%

e 50%-

40%1 20%

IW 10%

0 500 1.000 1,500 2,000 2.500 3,000 3.500 4.000 4,500 5.000 499 999 1.499 1,999 2,499 2.999 3,499 3.999 4,499 4,999 5,499 Mleasured Radioactivity (dpmIlOO cm2 )

Number of Observation Plot Parameters Interval High End Low End Observations Frequency

1. of measurements: 30 1 499 0 1 3%

1. of intervals: 11 2 999 500 27 90%

Interval increment: 500 3 1,499 1,000 2 7%

Minimum: 0 4 1,999 1,500 0 0%

Maximum: 5,499 5 2,499 2,000 0 0%

6 2,999 2,500 0 0%

Comment: 7 3,499 3,000 0 0%

NONE 8 3,999 3,500 0 0%

9 4,499 4,000 0 0%

10 4,999 4,500 0 0%

11 5,499 5,000 0 0%

Total: 30 100%

B-50

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045A Survey Unit Name: TB 45' - 93' Elevations - North Interior Wall Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 5 Measurement Units: dpm/100cm 2 Investigation Level: 21,000 Minimum Value: 704 Maximum Value: 1,406 Measurement Type: Removable Beta Number of Measurements: N/A Measurement Units: N/A Investigation Level: N/A Minimum Value: N/A Mean: N/A Maximum Value: N/A Standard Deviation: N/A Smears were not obtained at static measurement locations during Final Survey. Smears taken in the survey unit area during operational surveys indicated no removable contamination, with all smears less than 1,000 dpm/100cm2 .

Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data.

B-51

TROJAN FINAL SURVEY REPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045A Survey Unit Name: TB 45' - 93' Elevations - North Interior Wall Static Measurement Locations Map S02045A Sto-tac, LOCATIONS 63' El.

Turbine Building, North WaN (Interior, Facing North)

A2b I IA LLŽ t\4 d / 8 -I al Date Survey Tec Hician Ad,~c: rfi(d4*; I p./. -X.. Survey Technivian flsnnf

• Ho, A, . .

B-52

TROJAN FINAL SURVEY REPORT-SUPPLEMENTTO CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045B Survey Unit Name: TB - North Interior Wall Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2.100e+004 Statistical Quantities Measurement Name: Minimum Value 5.380e+002 Maximum Value 1.255e+003 Range 7.170e+002 Median 6.372e+002 Std. Deviation 2.254e+002 Mean 7.605e+002 95% UCL 8.303e+002 Measurement Values Location Value Location Value 000001 6.639e+002 000018 6.067e+002 000002 6.448e+002 000019 5.380e+002 000003 6.716e+002 000020 5. 418e+002 000004 6.258e+002 000021 5.991e+002 000005 5.991e+002 000022 6.219e+002 000006 8.318e+002 000023 6.296e+002 000007 9.806e+002 000024 5.876e+002 000008 5.647e+002 000025 6.181e+002 000009 9.806e+002 000026 6.067e+002 000010 1. 156e+003 000027 5.952e+002 000011 1.057e+003 000028 6.563e+002 000012 1.149e+003 000029 6.448e+002 000013 1. 019e+003 000030 6. 105e+002 000014 1.099e+003 000015 1.255e+003 000016 1.049e+003 000017 6. 105e+002 B-53

TROJAN FINAL SURVEY REPORT- SUPPLEMENTTO CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045B Survey Unit Name: TB - North Interior Wall Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 717 Test Value Criteria Acceptable? Median: 638 Range 717 1,127 Pass Mean: 761 Median 0.546 0.500 See comment below Std Dev: 225 Mean 761 10,500 Pass Minimum: 538 Std Dev 225 4,200 Pass Maximum: 1,255 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequencv Distribution 90. CM t70%- C. 6thA r 501% o 240% t 30%S 10.%a 0 Soo 1,000 1.500 2,000 2.500 3,000 3,500 4,000 4,500 5.000 499 999 1,499 1.999 2.499 2,999 3.499 3,999 4,499 4,999 5.499 Measured Radioactivity (dpmJIOO cm2 ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

     # of measurements:                  30                   1            499            0                 0           0%
            # of intervals:              11                  2             999          500               23          77%

Interval increment: 500 3 1,499 1,000 7 23% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% Median failure is a test artifact caused by a 8 3,999 3,500 0 0% slightly right skewed data set, resulting in a 9 4,499 4,000 0 0% median test value that just exceeds the 0.5 10 4,999 4,500 0 0% acceptance value. All data are valid and accepted. 11 5,499 5,000 0 0% Total: 30 100% B-54

TROJAN FINAL SURVEY REPORT- SUPPLEMENT TO CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045B Survey Unit Name: TB - North Interior Wall Measurement Type: Surface Scanning Beta Scan Coverage (%): 5 Measurement Units: dpm/I00cm2 Investigation Level: 21,000 Minimum Value: 755 Maximum Value: 1,406 Measurement Type: Removable Beta Number of Measurements: N/A Measurement Units: N/A Investigation Level: N/A Minimum Value: N/A Mean: N/A Maximum Value: N/A Standard Deviation: N/A Smears were not obtained at static measurement locations during Final Survey. Smears taken in the survey unit area during operational surveys indicated no removable contamination, with all smears less than 1,000 dpm/100cm 2 . Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-55

( Tri C IA J PIMA I '11P VP V 7RPfPRT-( TUIRBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045B Survey Unit Name: TB - North Interior Wall Static Measurement Locations Map S02045B STATIC MEASUREMENT LOCATIONS Paint Une OL T eh n a D t-,.e Survey Techniclan Date North Interfor Wan (facing north) of CB north wa"wuy

                                        / 7/30/Loi0t.

Survey Technicran Date B-56

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045C Survey Unit Name: TB - East of Column Line U Data Ouality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2. 100e+004 Statistical Quantities Measurement Name: Minimum Value 3.183e+002 Maximum Value 1. 108e+003 Range 7.897e+002 Median 8. 561e+002 Std. Deviation 2.254e+002 Mean 7.512e+002 95% UCL 8.211e+002 Measurement Values Location Value Location Value 000001 8.662e+002 000018 4. 915e+002 000002 8.783e+002 000019 5. 116e+002 000003 3.948e+002 000020 5. 157e+002 000004 8.944e+002 000021 9. 951e+002 000005 4.311e+002 000022 9.145e+002 000006 8.460e+002 000023 5.680e+002 000007 9. 991e+002 000024 1. 031e+003 000008 8.742e+002 000025 8.057e+002 000009 8.903e+002 000026 9.790e+002 000010 5.962e+002 000027 5.922e+002 000011 3.183e+002 000028 9.105e+002 000012 5.116e+002 000029 7.574e+002 000013 1. 108e+003 000030 3.747e+002 000014 8.823e+002 000015 7.856e+002 000016 9.306e+002 000017 8.823e+002 B-57

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045C Survey Unit Name: TB - East of Column Line U Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 790 Test Value Criteria Acceptable? Median: 856 Range . 790 1,127 Pass Mean: 751 Median 0.465 0.500 Pass Std Dev: 225 Mean 751 10,500 Pass Minimum: 318 Std Dev 225 4,200 Pass Maximum: 1,108 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 90* 80% 70%

             ~60%

A, 50*,;'

             =40%

t 30% o20,

             .0%

0 500 1,000 1.500 2,000 2.500 3.000 3.500 4,000 4,500 5,000 499 999 1.499 1,999 2.499 2,999 3,499 3.999 4.499 4.999 5,499 Measured Radioactivity (dpn-100 cn2 ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                    30                   1            499            0                 5         17%
            # of intervals:               11                   2             999         500                23         77%

Interval increment: 500 3 1,499 1,000 2 7% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% B-58

TROJAN FINAL SURVEY REPORT-TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045C Survey Unit Name: TB - East of Column Line U Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 5 Measurement Units: dpm/100cm 2 Investigation Level: 21,000 Minimum Value: 399 Maximum Value: 1,515 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/100cm 2 Investigation Level: 1,050 Minimum Value: 3 Mean: 9 Maximum Value: 16 Standard Deviation: 3 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-59

( C *c. TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045C Survey Unit Name: TB - East of Column Line U Static Measurement Locations Map Jbo f- .. . -- -- ..

b. wy rF a a .z I AH 10 O -3 (D .1 ... T6.;

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                                                 .;  ~~'     ,4                                                                          4         12        5 TROJAN FINAL SURVEY K-KI  K."q*PrR M-MPIV.,%                                                          ORMWIIG Ie.      W r4C                -EVI5ION N.          so 1      el" FWARcE sr       ft        ..

YPOO .IREIINDT "S3/3 _ ffc J A. I CFEEN -- I wr _I_? M.'-K- 1Ztv-Lj,&1 z st--xz IARE A OCrw*P I IM I ISiKi PSUWL.* [Lt V*T 1Th COAIMdR ANA PLANTI! V 4~511

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B-60

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045D Survey Unit Name: TB - West of Column Line U Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.OOOe-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1___30_________________C__________________e_________----________________ 130 DPM/100 CM2 . .0e04 - - Statistical Quantities Measurement Name: Minimum Value 3.814e+002 Maximum Value 1.275e+003 Range 8.936e+002 Median 8.900e+002 Std. Deviation 1.945e+002 Mean 8.569e+002 95% UCL 9. 172e+002 Measurement Values Location Value Location Value 000001 4.854e+002 000018 8.399e+002 000002 3. 814e+002 000019 7.744e+002 000003 4.354e+002 000020 9.593e+002 000004 1.017e+003 000021 8.630e+002 000005 8.977e+002 000022 1.275e+003 000006 1.063e+003 000023 9.323e+002 000007 8. 129e+002 000024 8.977e+002 000008 8.823e+002 000025 7.282e+002 000009 1. 017e+003 000026 7. 127e+002 000010 8.630e+002 000027 5. 471e+002 000011 9.478e+002 000028 1. 102e+003 000012 8.630e+002 000029 9.439e+002 000013 8.938e+002 000030 9.555e+002 000014 7.744e+002 000015 9.747e+002 000016 8 .861e+002 000017 9.824e+002 B-61

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045D Survey Unit Name: TB - West of Column Line U Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 894 Test Value Criteria Acceptable? Median: 890 Range 894 973 Pass Mean: 857 Median 0.170 0.500 Pass Std Dev: 195 Mean 857 10,500 - Pass Minimum: 381 Std Dev 195 4,200 Pass Maximum: 1,275 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequencv Distribution 80%- 70% V 60% V 50% e 40% I 30% o 20% 10%* I X_ 0 500 1,000 1500 2.000 2.500 3,000 3.500 4.0DD 4,500 5,000 499 999 1,499 1,999 2,499 2,999 3,499 3.999 4,499 4,999 5,499 Measured Radioactivity (dpmflOO cm2 ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                 30                   1            499            0                 3          10%
           # of intervals:              11                  2            999          500               22          73%

Interval increment: 500 3 1,499 1,000 5 17% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% B-62

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045D Survey Unit Name: TB - West of Column Line U Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 5 Measurement Units: dpm/100cm 2 Investigation Level: 21,000 Minimum Value: 460 Maximum Value: 1,764 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/IOOcm 2 Investigation Level: 1,050 Minimum Value: 2 Mean: 9 Maximum Value: 16 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-63

C. C TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS ( FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045D Survey Unit Name: TB - West of Column Line U Static Measurement Locations Man 4. 141J.%.M ff12 1 N

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                      /. -~ 7Po                                                                              CPIECKEO BY    _                      AG PEPERENCE I
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                                        -w B-64

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045E Survey Unit Name: TB - Steam Packing Exhauster Drain Trough Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 33 DPM/100 CM2 2. 100e+004 Statistical Quantities Measurement Name: Minimum Value 1.843e+002 Maximum Value - : 2.308e+003 Range 2. 124e+003 Median 9.855e+002 Std. Deviation 5.004e+002 Mean 1.118e+003 95% UCL 1.266e+003 Measurement Values Location Value Location Value 000001 8. 125e+002 000018 4.025e+002 000002 8.764e+002 000019 9.892e+002 000003 8. 614e-i-002 000020 1.140e+003 000004 9.855e+002 000021 8.350e+002 000005 8.726e+002 000022 9.479e+002 000006 8.388e+002 000023 9.592e+002 000007 9.291e+002 000024 1.019e+003 000008 7.410e+002 000025 1.076e+003 000009 6.131e+002 000026 1.687e+003 000010 8.275e+002 000027 1.774e+003 000011 1.843e+002 000028 1.594e+003 000012 6.733e+002 000029 1.994e+003 000013 9.554e+002 000030 2-308e+003 000014 1.046e+003 000031 2. 041e+003 000015 1.016e+003 000032 1.954e+003 000016 1.061e+003 000033 1.894e+003 000017 9.968e+002 B-65

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045E Survey Unit Name: TB - Steam Packing Exhauster Drain Trough Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 2,124 Test Value Criteria Acceptable? Median: 986 Range 2,124 2,502 Pass Mean: 1,118 Median 0.265 0.500 Pass Std Dev: 500 Mean 1,118 16,800 Pass Minimum: 184 Std Dev 500 4,200 Pass Maximum: 2,308 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequencv Distribution TC a. 0 0 500 1,000 1.500 2.000 2,500 3,000 3,500 4,000 4,500 5,000 499 999 1,499 1,999 2,499 2,999 3,499 3.999 4,499 4,999 5,499 2 Measured Radioactivity (dpm/lOO cm ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                   33                   1            499            0                 2           6%
            # of intervals:              11                   2            999          500                17         52%

Interval increment: 500 3 1,499 1,000 6 18% Minimum: 0 4 1,999 1,500 6 18% Maximum: 5,499 5 2,499 2,000 2 6% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 33 100% B-66

TROJAN FINAL SURVEY REPORT-TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045E Survey Unit Name: TB - Steam Packing Exhauster Drain Trough Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 100 Measurement Units: dpm/100cm 2 Investigation Level: 21,000 Minimum Value: 665 Maximum Value: 2,939 Measurement Type: Removable Beta Number of Measurements: 33 Measurement Units: dpm/100cm 2 Investigation Level: 2,100 Minimum Value: 2 Mean: 9 Maximum Value: 15 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investipgation Summary No investigation required for this survey unit. No anomalous measurement data. B-67

( ( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS (- FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045E Survey Unit Name: TB - Steam Packing Exhauster Drain Trough Static Measurement Locations Man F.-.p:y  ;' 4-0 ,,% - PLAN VIEW OF ROOM 82 a I 2 3 4 5 SCALE W(TMRS TROJAN FINAL SURVEY qwT Koa KR or .S W. I- MAP MM 5w45 FIREYISmt &(. L W Vnol ~f Ift M.? PREPARED BY In C HIYMD TREYISN CDATEI=-1W A.StHfKV PT I " VU i V

                                                                                    .CECKED BY       IWO                       REFERECE   A-3
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I I sSTEr4 PWN fl at . B-68

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045F Survey Unit Name: TB - Concrete Column/Floor Southwest Condenser "A" Data Ouality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2.100e+004 Statistical Quantities Measurement Name: Minimum Value  : 1.267e+003 Maximum Value 1.837e+003 Range 5.700e+002 Median 1.565e+003 Std. Deviation 1.245e+002 Mean 1.574e+003 95% UCL 1. 612e+003

• Measurement Values Location Value Location Value 000001 1.562e+003 000018 1.510e+003 000002 1.504e+003 000019 1.703e+003 000003 1.453e+003 000020 1.568e+003 000004 1.549e+003 000021 1.683e+003 000005 1. 619e+003 000022 1.760e+003 000006 1.696e+003 000023 1.267e+003 000007 1.549e+003 000024 1.837e+003 000008 1.709e+003 000025 1.414e+003 000009 1.414e+003 000026 1.453e+003 000010 1.472e+003 000027 1.530e+003 000011 1.542e+003 000028 1.587e+003 000012 1.575e+003 000029 1.792e+003 000013 1. 510e+003 000030 1.645e+003 000014 1.453e+003 000015 1.58 le+003 000016 1.587e+003 000017 1.683e+003 B-69

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045F Survey Unit Name: TB - Concrete Column/Floor Southwest Condenser "A" Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 570 Test Value Criteria Acceptable? Median: 1,565 Range 570 623 Pass Mean: 1,574 Median 0.069 0.500 Pass Std Dev: 125 Mean 1,574 16,800 Pass Minimum: 1,267 Std Dev 125 4,200 Pass Maximum: 1,837 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 90% 70% 60%

             ~50%

cm40*

             ~30%

o 20* 10% 0% 0 500 1,000 1,500 2,000 2500 3.000 3.500 4.000 4.500 5,000 499 999 1,499 1,999 2,499 2,999 3,499 3.999 4,499 4,999 5.499 Measured Radioactivity (dpmr100 cm2 ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

     # of measurements:                  30                   1            499           0                 0           0%
            # of intervals:              11                  2             999         500                 0           0%

Interval increment: 500 3 1,499 1,000 7 23% Minimum: 0 4 1,999 1,500 23 77% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% B-70

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045F Survey Unit Name: TB - Concrete Column/Floor Southwest Condenser "A" Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 100 Measurement Units: dpm/100cm 2 Investigation Level: 21,000 Minimum Value: 1,899 Maximum Value: 2,722 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/lOOcm 2 Investigation Level: 2,100 Minimum Value: 2 Mean: 10 Maximum Value: 16 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-71

C TROJAN FINAL SURVEY REPORT- TO TURBINE AND CONTROL BUILDING INTERIORS! FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045F Survey Unit Name: TB - Concrete Column/Floor Southwest Condenser "A" Static Measurement Locations Man EL 71'.2 30 9

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                                                             -STEEL NOT IN SU1RVEY UNIT tD   1 18 SO.M4TERS-

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               /    _77'? EZ111Z77t1ZIZZ=17,777      ,                                                  DRA '     Pa. I S02045F        I t1REVISION . lt PKPAREO    BY   I" C FthymO       REtISION ODAE        93/1/03 tDOCECO t       I             ._        R0WSEW E     Il    -    _ __

VIEW A-A 2 5 SCALE(tKETERS) UA TRl 8.JK.CIIG gL.45 f1 Al COUAEE O' & I LOOING EAST EXtil~ up tLNgCt'ttI 5 MOM^II VIEtS B-72

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045G Survey Unit Name: TB 45' Elevation - Southeast Stairwell/Freight Elevator Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2.100e+004 Statistical Quantities Measurement Name: Minimum Value 4.662e+002 Maximum Value 1.356e+003 Range 8.898e+002 Median 6.125e+002 Std. Deviation 2.753e+002 Mean 7.317e+002 95% UCL 8. 170e+002 Measurement Values Location Value Location Value 000001 7.243e+002 000018 5.548e+002 000002 7. 127e+002 000019 4.739e+002 000003 4.893e+002 000020 5.663e+002 000004 1.133e+003 000021 6.357e+002 000005 1. 356e+003 000022 5.047e+002 000006 1.052e+003 000023 4.662e+002 000007 5.317e+002 000024 6. 010e+002 000008 8.476e+002 000025 6.781e+002 000009 5.895e+002 000026 4.931e+002 000010 6.241e+002 000027 5.008e+002 000011 1.14Oe+003 000028 5.278e+002 000012 8.861e+002 000029 4.854e+002 000013 1.217e+003 000030 1.229e+003 000014 1.144e+003 000015 6.858e+002 000016 5.432e+002 000017 5.586e+002 B-73

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045G Survey Unit Name: TB 45' Elevation - Southeast Stairwell/Freight Elevator Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 890 Test Value Criteria Acceptable? Median: 613 Range 890 1,376 Pass Mean: 732 Median 0.433 0.500 Pass Std Dev: 275 Mean 732 10,500 Pass Minimum: 466 Std Dev 275 4,200 Pass Maximum: 1,356 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 70% 60*

¢50* t I.40%

30* 20% 0 10% 499 999 1,499 I,999 2.499 2,999 3,499 3.999 4,499 4,999 5,499 Measured Radioactivity (dpnVoO cB Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                    30                   1            499           0                 5          17%
           # of intervals:                11                   2            999         500                18          60%

Interval increment: 500 3 1,499 1,000 7 23% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% B-74

TROJAN FINAL SURVEY REPORT-TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045G Survey Unit Name: TB 45' Elevation - Southeast Stairwell/Freight Elevator Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 5 Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 620 Maximum Value: 2,033 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/lOOcm 2 Investigation Level: 1,050 Minimum Value: 48 Mean: 66 Maximum Value: 86 Standard Deviation: 9 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-75

(, C TROJAN FINAL SURVEYREPORT- TURBINEAND CONTROL BUILDING INTERIOIRS ( FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045G Survey Unit Name: TB 45' Elevation - Southeast Stairwell/Freight Elevator Static Measurement Locations Map i

1 36 s14 DfI'I 5101

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I 71

I IS s14 0EurAS1 lCYM DO= WREC*

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                                               ,    ,j                                                                       FR1H        ElEvATOR I, sGIAMlEL
                                                                                                                                                               ,¢< _

B-76

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045H Survey Unit Name: TB 45' Elevation - Survey for Release Area Floorr Data Oualitv Values Type 1 Error  : 5.OOOe-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2. 100e+004 Statistical Quantities Measurement Name: Minimum Value 1.062e+003 Maximum Value 1.434e+003 Range 3.720e+002 Median 1.242e+003 Std. Deviation 9. 647e+001 Mean 1.248e+003 95% UCL 1.278e+003 Measurement Values Location Value Location Value 000001 1.273e+003 000018 1.396e+003 000002 1.139e+003 000019 1.346e+003 000003 1.120e+003 000020 1.204e+003 000004 1.162e+003 000021 1.265e+003 000005 1.169e+003 000022 1.173e+003 000006 1.242e+003 000023 1.365e+003 000007 1.307e+003 000024 1.315e+003 000008 1.066e+003 000025 1.365e+003 000009 1.062e+003 000026 1.196e+003 000010 1.158e+003 000027 1. 311e+003 000011 1.200e+003 000028 1.235e+003 000012 1.189e+003 000029 1.227e+003 000013 1.434e+003 000030 1.330e+003 000014 1.373e+003 000015 1.330e+003 000016 1.242e+003 000017 1.242e+003 B-77

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045H Survey Unit Name: TB 45' Elevation - Survey for Release Area Floorr Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 372 Test Value Criteria Acceptable? Median: 1,242 Range 372 482 Pass Mean: 1,248 Median 0.061 0.500 Pass Std Dev: 96 Mean 1,248 16,800 Pass Minimum: 1,062 Std Dev 96 4,200 Pass Maximum: 1,434 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 100%. a 80% U 70% - 60%- 01 C: 50% 0 40% - 30% - 0 20% i 10%  : R n% I.;i 0 500 1,000 1.500 2.000 2,500 3.000 3.500 4,000 4,500 5,000 499 999 1,499 1.999 2,499 2,999 3.499 3,999 4.499 4,999 5.499 Measured Radioactivity (dpm/100 cm2 ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                    30                   1             499            0                 0           0%
           # of intervals:                 11                 2              999          500                 0           0%

Interval increment: 500 3 1,499 1,000 30 100% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% B-78

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045H Survey Unit Name: TB 45' Elevation - Survey for Release Area Floorr Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 15 Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 1,254 Maximum Value: 1,715 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/lOOcm 2 Investigation Level: 2,100 Minimum Value: 46 Mean: 65 Maximum Value: 88 Standard Deviation: 10 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-79

(. (. ( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045H Survey Unit Name: TB 45' Elevation - Survey for Release Area Floorr Static Measurement Locations Map 4 lI I3 0 t 2 3 - 4 5 SME OCTERSM B-80

TROJAN FINAL SURVEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045J Survey Unit Name: TB 45' Elevation - Survey for Release Walls/Ceiling Data Quality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement .# Of Measurement TYpe Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2. 100e+004 Statistical Quantities Measurement Name: Minimum Value 4.380e+002 Maximum Value 1.232e+003 Range 7.940e+002 Median 8.629e+002 Std. Deviation 2.328e+002 Mean 8.989e+002 95% UCL 9.710e+002 Measurement Values Location Value Location Value 000001 8.386e+002 000018 8.573e+002 000002 5.990e+002 000019 8. 011e+002 000003 1.131e+003 000020 8.685e+002 000004 1.123e+003 000021 6.402e+002 000005 1. 138e+003 000022 5.466e+002 000006 1.213e+003 000023 1.063e+003 000007 1.232e+003 000024 7.263e+002 000008 1.198e+003 000025 7.674e+002 000009 8.011e+002 000026 4.380e+002 000010 9.134e+002 000027 6.327e+002 000011 1.022e+003 000028 1. 108e+003 000012 1.172e+003 000029 1.217e+003 000013 7.937e+002 000030 7.225e+002 000014 8.798e+002 000015 6. 813e+002 000016 6.739e+002 000017 1. 168e+003 B-81

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045J Survey Unit Name: TB 45' Elevation - Survey for Release Walls/Ceiling Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 794 Test Value Criteria Acceptable? Median: 863 Range 794 1,164 Pass Mean: 899 Median 0.154 0.500 Pass Std Dev: 233 Mean 899 10,500 Pass Minimum: 438 Std Dev 233 4,200 Pass Maximum: 1,232 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequencv Distribution U;1 0 0 50D 1.(XX 1.500 2,0 2500 3.000 3.500 4,000 4.500 5.000 499 999 1,499 1.999 2,499 2.999 3,499 3,999 4,499 4,999 5,499 Measured Radioactivity (dprni100 cnm) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                 30                   1            499             0                  1          3%
           # of intervals:             11                   2            999           500                17         57%

Interval increment: 500 3 1,499 1,000 12 40% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% B-82

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045J Survey Unit Name: TB 45' Elevation - Survey for Release Walls/Ceiling judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 3 Measurement Units: dpm/100cm 2 Investigation Level: 21,000 Minimum Value: 985 Maximum Value: 1,639 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/100cm 2 Investigation Level: 1,050 Minimum Value: 48 Mean: 64 Maximum Value: 82 Standard Deviation: 8 Discussion of Anomalous Measurement Data Investigation Summarv No investigation required for this survey unit. No anomalous measurement data. B-83

( C (: TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045J Survey Unit Name: TB 45' Elevation - Survey for Release Walls/Ceiling Static Measurement Locations Map B-84

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045J Survey Unit Name: TB 45' Elevation - Survey for Release Walls/Ceiling Static Measurement Locations Man B-85

f '( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045J Survey Unit Name: TB 45' Elevation - Survey for Release Walls/Ceiling Static Measurement Locations Man r. B-86

C C TROJAN FINAL SURVEY REPORT- TURB!NEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045J Survey Unit Name: TB 45' Elevation - Survey for Release Walls/Ccilinj Static Measurement Locations Man LOOKING NORTH 8

• 2 3 4 5 ATCM.tjNE 45 5w "_5 SCAtEWEPTRS1 TROJAN FINAL SURVEY MPt O. YEYMOt S82545J4 I NO. lo By PREPARED K C RAYMNCI PEMI(NDDATE 105-12-04

           ?wsstw,/f1J
        ,Totci         2AlH f    Lid-If !M                                                                                     IA.3 CHECKEBY    IC 0 OLSONI     Dw0 7MEROf!

nam Ae At IZ SUMVFYFOR IELAE FACRY

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                                                                                  =
                                                                                                                           *tg -4   nflj B-87

C( TROJAN FINAL SURVEY REPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045J Survey Unit Name: TB 45' Elevation - Survey for Release Walls/Ceiling Static Measurement Locations Map _150 H

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• 0. w O a 0

LOOKING SOUTH ATCILW 5sz 2 AM 0 4 0

         , .tv l4  WqUm  01 1 ,95 TROJAN FINAL SURVEY T.V 4; 190a x
              -t -    **

A.I -' 0y

y PW MS932U45J0 PCEAO BYY C1ECKrD BY AIWEAMtONT

_ DESlTlt A C 0 OLSON

                                                                                                                                &AYEY REII NM1)

I REVISION OATE OWOREFM YRFatEAI E vEim TlNJVATIOR In 1 S-12-04 4-3 rPAcaLTY S." _ . U O sn B-88

C., TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVE:Y RESULTS

SUMMARY

Survey Unit ID Code: S02045J Survey Unit Name: TB 45' Elevation - Survey for Release Walls/Ceiling Static Measurement Locations Map LOOKING EAST LOOKINMWEST ATYIEV" AT YE - 5 4 W eYTROJAN FINAL SURVEY

                /        tW                                   K.                       MAP_          4d1 I U545J6        RE IS           *i 1
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                                                                                              ~

CBY ARC RAYO lCD 0 DA I DwoREFOWCE jA-3

                                                                                                                                   -4 9Y5BI24 i                                           AREet                 MY O WMADiVE fMIEA   FAGLM

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                                                                                                                             ,K4  ~,_A B-89

(. (: TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS (s FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045J Survey Unit Name: TB 45' Elevation - Survey for Release Walls/Ceiling Static Measurement Locations Map Ait . wC A &-Z ¶.V1a 2 EL 5- ' EL 45 LOOKING EAST LOOKING WEST AT Y1F f-f ATCM. rY FPO a I 'O s I I 2 3 4 5 Swdfcks SE (TtnS s Wftm 4 pt . . p, Q TROJAN FINAL SURVEY iw iam~ I457 REnVSION"CL Its ' Of DID my cC C MIG EVSON OATE 13 4 MW.uM- VoLKEO MY -c CaLSO I I -DWQRFEECI nc~-t St AIPaVVET FOR RO.AK FACS..TY mTt UVMATMNmve ItS - ,. a B-90

(7 ( ( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045J Survey Unit Name: TB 45' Elevation - Survey for Release Walls/Ceiling Static Measurement Locations Map Z MEN OPEN so M @ Q @ N 4OMOI SLUOCKi _____ EL By-Ir Isom ISO 4 SOM K-'I~ tt@4TEEalUI E e

                    .5 so M LOOKING WEST                                              LOOKING EAST                   LOOKING NORTH         LOOKNG SOUTH AT         4?         AT M..IE 4?

ATCLINE r Ar t.LU V SCOC ow"? KM4#n".q TROJAN FINAL SURVEY

                                                                                                           .-         sms224s     IsvWS10" w
                                               $WM           ,.
                LAZI    Ag              /J7ID       :                                                  In E           cRAMND C              SIWON DATE   15-2-4

-ED(EDl BY C LEA OLSON DilO 0 tA-5CSKbEtIRSI II I- I-' El£YEATIN VIS B-91

C (i ( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045J Survey Unit Name: TB 45' Elevation - Survey for Release Walls/Ceiling Static Measurement Locations May B-92

C C C TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045J Survey Unit Name: TB 45' Elevation - Survey for Release Walls/Ceiling Static Measurement Locations-Map

                                                        /l"      5T I'              4 ft        A IIAs'b , a 2 C. w-r tIL 57-EL 4W-f LOOKM 3 EAST AT LLD V FM4 as AV a TROJAN FINAL SURVEY
          /Du   .ijreb~   ajh 5 6                                                   ~ ID10.

M~URE By y 88245AS AS CD RYMO ftEVXS!HNO. IREVISION DATE 1Joe U- -_ A.fi~

            ,z  &U      v  S   4-        S-/-.71A  i                                   OCECKE Y       C DB       DWOPE FM FaiEA IYEEA INCE I-3 FAC.n

_ DEwTwN 0EUPAT~TDVIEWI M " Y" B-93

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS SUMMNIARY Survey Unit ID Code: S02045K Survey Unit Name: TB 45' Elevation - Crane Bay and Breezeway Data Qualitv Values Type 1 Error  : 5.OOOe-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2. 100e+004 Statistical Quantities Measurement Name: Minimum Value 5. 151e+002 Maximum Value 1.370e+003 Range 8.549e+002 Median 9.520e+002 Std. Deviation 2.519e+002 Mean 9.538e+002 95% UCL 1.032e+003 Measurement Values Location Value Location Value 000001 9.272e+002 000018 6.792e+002 000002 7.937e+002 00 0019 1.305e+003 000003 1.278e+003 000020 1.293e+003 000004 5.647e+002 000021 1.206e+003 000005 1.24 Oe+003 000022 1. 179e+003 000006 1.042e+003 000023 6.906e+002 000007 8.089e+002 000024 9.654e+002 000008 5.685e+002 000025 1.091e+003 000009 8.585e+002 000026 1.034e+003 000010 1.164e+003 000027 5.151e+002 000011 1.240e+003 000028 8. 051e+002 000012 6.983e+002 000029 8 . 013e+002 000013 6.334e+002 000030 9.654e+002 000014 9.386e+002 000015 8. 051e+002 000016 1. 152e+003 000017 1.370e+003 B-94

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045K Survey Unit Name: TB 45' Elevation - Crane Bay and Breezeway Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 855 Test Value Criteria Acceptable? Median: 952 Range 855 1,260 Pass Mean: 954 Median 0.007 0.500 Pass Std Dev: 252 Mean 954 10,500 Pass Minimum: 515 Std Dev 252 4,200 Pass Maximum: 1,370 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Freauencv Distribution 60% 50% 40% 6., 20% 0 0 500 1000 19500 2,000 250D 3,000 3500 4,000 45W 5,000 499 999 1.499 1.999 2,499 2.999 3.499 3,999 4,499 4999 5,499 Measured Radioactivity (dpnV&100 cm2) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                  30                   1            499             0                 0           0%
           # of intervals:               11                  2            999           500                17         57%

Interval increment: 500 3 1,499 1,000 13 43% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% B-95

TROJAN FINAL SURVEY REPORT-TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045K Survey Unit Name: TB 45' Elevation - Crane Bay and Breezeway Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 4 Measurement Units: dpmn100cm 2 Investigation Level: 21,000 Minimum Value: 827 Maximum Value: 1,791 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/100cm 2 Investigation Level: 1,050 Minimum Value: 39 Mean: 60 Maximum Value: 83 Standard Deviation: 11 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-96

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045K Survey Unit Name: TB 45' Elevation - Crane Bay and Breezeway Static Measurement Locations Man B-97

(. (I ( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045K Survey Unit Name: TB 45' Elevation - Crane Bay and Breezeway Static Measurement Locations Man I if EL. S¶'-g I. .. I I I Iliv I 0 1 S H 2150 (STEEU tl5 50 H 18LOCE) (STEELPLATE ONWALL I C] l 21C e.:, B 3 4 5 5 = VJT7^"a n P w. 7 ELEVATION LOOKING EAST TROJAN FINAL SURVEY It NAPNO. SB45(2 REVISIONN lI

      $-,W               M                  Im-    /   wt                    ATCOLLIE B                             PPEPMO PREPAREDBY By  R C RAYNOI M

D=A 1REYTEIGN' "i  : 12/2/9 1 5/2 /94 T.-K - x- , R 4 e, -

                                                       ;-,f,-Vy                                                  CHEED BY   C0 S TT DUO9lEERDHM IMAM    TADI TRDDiSAY A,-3 BREEZE WAY noworwo                                                                                                  DESCRIPTION

{i^ LM & EfLVATZN VV

                                                                                                                                                         &I B-98

( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045K Survey Unit Name: TB 45' Elevation - Crane Bay and Breezeway Static Measurement Locations Map S I 2 3 4 5

                                                                                      $4d{W~Sr~f                     MYERS)

PAWV Pt - Pt* W ." Ptv.II. TROJAN FINAL SURVEY MAPNM S52345C REVISION"M Ms PREPAREDBY A C MYMOND REYISIONDATE 19528/34 CHEKEDDBY E 0 OLSOi DvO IVCERECE IA3 AFUE QET . U1DE BULDZDITA(INSAY & BEZEWAY IF.~ TDESCT1I4 CtIuM wuI

                                                                                                                     'U~.A 9P- *'

B-99

c C TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045K Survey Unit Name: TB 45' Elevation - Crane Bay and Breezeway Static Measurement Locations Man 9 i i 0 90 9 z i i 13 SO M ISUEEU i i I I i I i i i i i -I I ~- Ii

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• S'scs: sctE FEIRSIM E, rti ptema W*M3." . Z TROJAN FINAL SURVEY IWQ RWslN MM

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shjIEE" MRE BY BSCIONG DAME !M/2/4 vw _ Ia U O £CHtEDKBY IC OLSON O I MMOREF]R E IA3 INTA/MONINT rTwUDE 3ame, TYlt AY , BaEVAY

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B-100

C TROMAN FINAL SURVEY REPORT- TTIRBINF AND CONTROL BUILDING INTERIORS C,, FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02045K Survey Unit Name: TB 45' Elevation - Crane Bay and Breezeway Static Measurement Locations Man

                                                    -22 SO N ItLOCK)
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                                                                                           -,W  "-                           SrAE ETSRSI TROJAN FINAL SURVEY t           8Z450      I REVISION .      ISO jlMO nm  ,po@ D,P  ~

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                                  'to.Ol                                                  MRE      8Y   R C RAYMONOIREVISION ATE      10/20/54 CEECLDOBY   IC 0 OLSON IWvOfIlENCE IA-3
                             - Z5    -   -/I -'

IAEAAcWTX DESRUUPTION I TI II Ft W TRAN BY TTM M WAY YEZE L -.- B-101

TROJAN FINAL SURVEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02063A Survey Unit Name: TB 63' Elevation - Turbine, Large Area Data Quality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2. lOOe+004 Statistical Quantities Measurement Name: Minimum Value 3.699e+002 Maximum Value 1.217e+003 Range 8.471e+002 Median 9.208e+002 Std. Deviation 2.567e+002 Mean 8.233e+002 95% UCL 9.029e+002 Measurement Values Location Value Location Value 000001 9.747e+002 000018 7.975e+002 000002 9.362e+002 000019 1.125e+003 000003 1.002e+003 000020 1.002e+003 000004 1.094e+003 000021 1.002e+003 000005 9.208e+002 000022 1.217e+003 000006 9.208e+002 000023 1.067e+003 000007 9.092e+002 000024 5.548e+002 000008 6. 010e+002 000025 4.315e+002 000009 4.700e+002 000026 4.354e+002 000010 8.669e+002 000027 4.007e+002 000011 1.079e+003 000028 5.702e+002 000012 1.067e+003 000029 5.278e+002 000013 5.394e+002 000030 3.699e+002 000014 1.021e+003 000015 9.362e+002 000016 9.863e+002 0000017 8.746e+002 B-102

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02063A Survey Unit Name: TB 63' Elevation - Turbine, Large Area Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 847 Test Value Criteria Acceptable? Median: 921 Range 847 1,284 Pass Mean: 823 Median 0.380 0.500 Pass Std Dev: 257 Mean 823 10,500 Pass Minimum: 370 Std Dev 257 4,200 Pass Maximum: 1,217 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequencv Distribution C)

          .0
          .0 0     500     1,000     1.500   2,000     2.500  3,000   3.500     4,000    4,500    5,000 499    999     1,499     1.999   2,499     2,999  3,499   3.999     4,499    4.999    5.499 Measured Radioactivity (dpm/100 cm2 )

Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                   30                    1           499            0                 5          17%
            # of intervals:              11                    2           999          500                15         50%

Interval increment: 500 3 1,499 1,000 10 33% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% B-103

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02063A Survey Unit Name: TB 63' Elevation - Turbine, Large Area judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): I Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 585 Maximum Value: 2,033 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/1OOcm 2 Investigation Level: 1,050 Minimum Value: 0 Mean: 8 Maximum Value: 15 Standard Deviation: 3 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-104

V; C.' ( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02063A Survey Unit Name: TB 63' Elevation - Turbine, Large Area Static Measurement Locations Man EAST SIDE GRATI FLOOR REAS N4~J~i I!I -1l 5

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0P - -- l t SICNATURES PRINT SIGN DATE , TROJAN FINAL SURVEY ORAVDI NM 1S63A IREVISIONOm In nrf PJJNSOA JY REVISIONODAM 12/24/1 TECHNICIANI I1 2345 SC/I.E KTERS) OM BY llD MRFERECE . DiO TECHNICIAN2 4, l . .A 4-.2t *2 PN TUBIM NU.IN ELEVATO 3FT

                                                                    '-' -                                        X  ,        7     C                    -                                 fTU      l~~~bblJC1lIl>                          -

B-105

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02063B Survey Unit Name: TB 63' Elevation - Turbine Main Steam Stop Floor Area Data Quality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2.100e+004 Statistical Quantities Measurement Name: Minimum Value 1.697e+003 Maximum Value 5.149e+003 Range 3.452e+003 Median 2.091e+003 Std. Deviation 6. 61 6e+0 02 Mean 2.228e+003 95% UCL 2.433e+003 Measurement Values Location Value Location Value 000001 1 . 910e+003 000018 2. 155e+003 000002 1. 813e+003 000019 2.097e+003 000003 2.187e+003 000020 2.194e+003 000004 1.923e+003 000021 2.265e+003 000005 1. 871e+003 000022 2.155e+003 000006 1.981e+003 000023 2.497e+003 000007 2.078e+003 000024 3.839e+003 000008 1.697e+003 000025 2. 310e+003 000009 1.826e+003 000026 2.129e+003 000010 2. 103e+003 000027 2.310e+003 000011 2.039e+003 000028 5.149e+003 000012 2.013e+003 000029 2.226e+003 000013 2.123e+003 000030 2.039e+003 000014 2.084e+003 000015 1.974e+003 000016 1.858e+003 000017 2.000e+003 B-106

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02063B Survey Unit Name: TB 63' Elevation - Turbine Main Steam Stop Floor Area Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 3,452 Test Value Criteria Acceptable? Median: 2,091 Range 3,452 3,308 See comment below Mean: 2,228 Median 0.208 0.500 Pass Std Dev: 662 Mean 2,228 16,800 Pass Minimum: 1,697 Std Dev 662 4,200 Pass Maximum: 5,149 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Freauenev Distribution U

           .:0I Gr a

Tk 0 0 1,ODO 2OO 3,000 4,000 5.000 6.000 7,000 8,000 9,000 10,000 999 1.999 .999 3.999 4.999 5.999 6.999 7.999 8,999 9,999 10,999 Measured Radioactivity (dpmn1OO cmg) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

     # of measurements:                    30                  1            999            0                  0          0%
            # of intervals:                11                  2          1,999        1,000                  9        30%

Interval increment: 1,000 3 2,999 2,000 19 63% Minimum: 0 4 3,999 3,000 1 3% Maximum: 10,999 5 4,999 4,000 0 0% 6 5,999 5,000 1 3% Comment: 7 6,999 6,000 0 0% Range failure is a test artifact due to two values 8 7,999 7,000 0 0% greater than 3,000 dpm and a relatively small 9 8,999 8,000 0 0% standard deviation. All data are valid and 10 9,999 9,000 0 0% accepted. 11 10,999 10,000 0 0% Total: 30 100% B-107

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02063B Survey Unit Name: TB 63' Elevation - Turbine Main Steam Stop Floor Area Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 100 Measurement Units: dpm/100cm 2 Investigation Level: 21,000 Minimum Value: 2,324 Maximum Value: 3,183 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/100cm 2 Investigation Level: 2,100 Minimum Value: 3 Mean: 10 Maximum Value: 16 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-108

c ( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS ( FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02063B Survey Unit Name: TB 63' Elevation - Turbine Main Steam Stop Floor Area Static Measurement Locations Map

          -0                                      0 l 0

STW VrVE. Al"A SIGNAftTES PRINT SIGN DATE TROJAN FINAL SURVEY NDRAVMt S6263S iftmsure NM Ns TECpqCIANI PA.JL- d ft7eo 0 1 2 3 45 PREPARED BY P.J.JU*dSON 1REVISIN4DATE _2/25/3 QEC BY TVO REFEDENCE 147A. f? . z SCALE (METERS) TECHNICIAN 2 JI V BI

• IIJ, 1 T hf ~ VJUNHIBLIXIMM*DEJATMN 3-fT tIr

                                                                                                 ... I, J.1- ... =C.Lr.eIe63.          R    -

B-109

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02063C Survey Unit Name: TB 63' Elevation - Turbine Air Ejector Area Floor Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 40 DPM/100 CM 2 2. 100e+004 Statistical Quantities Measurement Name: Minimum Value 9.219e+002 Maximum Value 2.208e+003 Range 1.286e+003 Median 1.074e+003 Std. Deviation  : 2.005e+002 Mean 1.106e+003 95% UCL 1.160e+003 Measurement Values Location Value Location Value Location Value 000001 1.134e+003 000018 1.146e+003 000035 1.030e+003 000002 1.046e+003 000019 9.740e+002 000036 1. 126e+003 000003 9.219e+002 000020 1.002e+003 000037 1.247e+003 000004 1.014e+003 000021 1.030e+003 000038 1.203e+003 000005 1.070e+003 000022 1.026e+003 000039 1.002e+003 000006 9.580e+002 000023 1. 150e+003 000040 1.166e+003 000007 9.420e+002 000024 1. 114e+003 000008 9.901e+002 000025 1. OlOe+003 000009 1.062e+003 000026 1. 146e+003 000010 1.062e+003 000027 1. 09Be+003 000011 1.102e+003 000028 1.086e+003 000012 1.082e+003 000029 9.700e+002 000013 1. 050e+003 000030 1.078e+003 000014 1.022e+003 000031 1.227e+003 000015 1. llOe+003 000032 2.208e+003 000016 1. 190e+003 000033 9.660e+002 000017 1.355e+003 000034 1.134e+003 B-110

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02063C Survey Unit Name: TB 63' Elevation - Turbine Air Ejector Area Floor Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 1,286 Test Value Criteria Acceptable? Median: 1,074 Range 1,286 1,003 See comment below Mean: 1,106 Median 0.161 0.500 Pass Std Dev: 201 Mean 1,106 16,800 Pass Minimum: 922 Std Dev 201 4,200 Pass Maximum: 2,208 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution T.0 0 0 500 1,.00 1.500 2T000 2,500 3,000 3.500 4,000 4.500 5.000 499 999 1.499 1,999 2499 2.999 3,499 3.999 4,499 4,999 5,499 Measured Radioactivity (dpnm100 cm2) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

     # of measurements:                   40                   1            499            0                 0           0%
            # of intervals:               11                  2             999          500                 7         18%

Interval increment: 500 3 1,499 1,000 32 80% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 1 3% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% Range failure is a test artifact due to one value 8 3,999 3,500 0 0% greater than 2,000 dpm and a relatively small 9 4,499 4,000 0 0% standard deviation. All data are valid and 10 4,999 4,500 0 0% accepted. 11 5,499 5,000 0 0% Total: 40 100% B-111

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02063C Survey Unit Name: TB 63' Elevation - Turbine Air Ejector Area Floor Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 100 Measurement Units: dpm/100cm 2 Investigation Level: 21,000 Minimum Value: 1,074 Maximum Value: 3,133 Measurement Type: Removable Beta Number of Measurements: 40 Measurement Units: dpm/100cm 2 Investigation Level: 2,100 Minimum Value: 3 Mean: 10 Maximum Value: 21 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-1 12

C ( I IO TROJANA FINA L SUIRVEY REPORT- TUIRBINE AN ROLw CNT ( BUILDING. INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02063C Survey Unit Name: TB 63' Elevation - Turbine Air Ejector Area Floor Static Measurement Locations May

           -q SIGNATURES           PRINT                 SIGN        DATE                                           TROJAN FINAL SURVEY DRAVIN N   iSVeaB3C      IREVTSION    MM     leg Is I    -

TECHNICIANI ?L A'- 6z> , MMeAEreDBY 1P.J. J0= LYO DAiTEi IFv25/I93_ CHEOCEBY I I 0w FEFERErCEI TI I q TECHNICIAN2 A/ 1M&I! 1U haft;2eYlelZ7x:=S- 50LI S61L r~s I~ Am,UVTf3IT rl~eMe L.R AEXATIIBN Aa2rA- =L~P a:-T CXZI rI c:zu.s. CfELF w mlI;rr..cJetsF v^zzz., B-1 13

TROJAN FINAL SURVEY REPORT-TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02069A Survey Unit Name: TB 69' Elevation - Turbine Switchgear Data Quality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2.100e+004 Statistical Quantities Measurement Name: Minimum Value 5.380e+002 Maximum Value 1.416e+003 Range 8.780e+002 Median 1.103e+003 Std. Deviation  : 2.521e+002 Mean 1.060e+003 95% UCL 1. 138e+003 Measurement Values Location Value Location Value 000001 1. 122e+003 000018 1.305e+003 000002 1.099e+003 000019 1. 107e+003 000003 1.057e+003 000020 1.244e+003 000004 1. 194e+003 000021 5.647e+002 000005 1. 164e+003 000022 1.416e+003 000006 1.095e+003 000023 1.351e+003 000007 1. 061e+003 000024 6.448e+002 000008 1.084e+003 000025 1.305e+003 000009 1.076e+003 000026 1.263e+003 000010 1.095e+003 000027 5.571e+002 000011 1.149e+003 000028 5.38Oe+002 000012 9. 501e+002 000029 1.152e+003 000013 1.080e+003 000030 6.716e+002 000014 1. 156e+003 000015 1.183e+003 000016 1.408e+003 000017 7. 021e+002 B-1 14

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02069A Survey Unit Name: TB 69' Elevation - Turbine Switchgear Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 878 Test Value Criteria Acceptable? Median: 1,103 Range 878 1,260 Pass Mean: 1,060 Median 0.171 0.500 Pass Std Dev: 252 Mean 1,060 10,500 Pass Minimum: 538 Std Dev 252 4,200 Pass Maximum: 1,416 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequencv Distribution 90%- 80%

          ;'U 70%

S 60X' 01

          °    40%                 'T' wt 30b 0    20%

l0% 0o% 0 500 ,ooo 1.500 2,000 2.500 3.000 3.500 4,000 4.500 5,000 499 999 1,499 1,999 2,499 2.999 3,499 3,999 4,499 4,999 5.499 Measured Radioactivity (dpmI100 cm2 ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                      30                  1            499            0                 0            0%
             # of intervals:                11                 2             999          500                 7          23%

Interval increment: 500 3 1,499 1,000 23 77% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% B-115

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02069A Survey Unit Name: TB 69' Elevation - Turbine Switchgear Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): I Measurement Units: dpm/100cm2 Investigation Level: 21,000 Minimum Value: 715 Maximum Value: 1,713 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/100cm2 Investigation Level: 1,050 Minimum Value: 2 Mean: 8 Maximum Value: 15 Standard Deviation: 3 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-116

( (I TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS ( FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02069A Survey Unit Name: TB 69' Elevation - Turbine Switchgear Static Measurement Locations Map

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• pm SIONATURES PRINT BATE.I2Bw E .T TROJAN FINAL SURVEY . PdSEVlSIO tECvICIN I.. 3 0 1 2 34 5 R EPARD PRCCRES No2I Y BY PJWMSN JHNSON II ISE M DE TE 1B 4/53 1 MAI4M~LOCAIWM rscI.4CIA z 4J J
• SCALE (METERS) CEK I m Dim ELATTEN.

IISWTH sr7-7r/c sS fMt kWE/L0KI5* A110NI~\5 R-B-117

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093A Survey Unit Name: TB 93' Elevation - North Interior Wall Data Oualitv Values Type 1 Error  : 5.OOOe-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2. lOOe+004 Statistical Quantities Measurement Name: Minimum Value 4.655e+002 Maximum Value 6.868e+002 Range 2.213e+002 Median 5.857e+002 Std. Deviation 5.187e+001 Mean 5.896e+002 95% UCL 6.057e+002 Measurement Values Location Value Location Value 000001 5.227e+002 000018 6.067e+002 000002 5. 914e+002 000019 6.792e+002 000003 4.655e+002 000020 6. 105e+002 000004 5.266e+002 000021 6.487e+002 000005 5.991e+002 000022 5.685e+002 000006 6.372e+002 000023 6.525e+002 000007 6.219e+002 000024 6.525e+002 000008 5.380e+002 000025 5.266e+002 000009 5.495e+002 000026 5.456e+002 000010 5.685e+002 000027 6.219e+002 000011 5.609e+002 000028 6. 181e+002 000012 5.838e+002 000029 5.647e+002 000013 5.723e+002 000030 5.800e+002 000014 5.876e+002 000015 5.456e+002 000016 6.868e+002 000017 6.563e+002 B-118

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093A Survey Unit Name: TB 93' Elevation - North Interior Wall Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 221 Test Value Criteria Acceptable? Median: 586 Range 221 269 Pass Mean: 588 Median 0.038 0.500 Pass Std Dev: 54 Mean 588 10,500 Pass Minimum: 466 Std Dev 54 4,200 Pass Maximum: 687 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Freauencv Distribution 120% -

           '   100%

w

0

            =1U*

C.

            =   60*

tw40% _r I 0 20% 0% 0 500 1.000 1.500 2.000 2.500 3,000 3.500 4,000 4,500 5,000 499 999 1.499 1,999 2499 2.999 3.499 3.999 4,499 4,999 5,499 Measured Radioactivity (dpnm100 cm2 ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

     # of measurements:                    30                   1            499            0                 1            3%
             # of intervals:         - 11                      2             999          500                29          97%

Interval increment: 500 3 1,499 1,000 0 0% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% B-119

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093A Survey Unit Name: TB 93' Elevation - North Interior Wall Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 5 Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 673 Maximum Value: 1,056 Measurement Type: Removable Beta Number of Measurements: N/A Measurement Units: dpm/lOOcm 2 Investigation Level: N/A Minimum Value: N/A Mean: N/A Maximum Value: N/A Standard Deviation: N/A Smears were not obtained at static measurement locations during Final Survey. Smears taken in the survey unit area during operational surveys indicated no removable contamination, with all smears less than 1,000 dpm/lOOcm 2 . Discussion of Anomalous Measurement Data Investigation Summarv No investigation required for this survey unit. No anomalous measurement data. B-120

C . _ TROJAN FINAL SURVEY REPORT- TURBINEAND CONTROL BUJLDJNG INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093A Survey Unit Name: TB 93' Elevation - North Interior Wall

                                               - Static Measurement Locations Map su, ,                                                                        p This ;Ti                                        t rea not accessed for safety consid 3rations VWndcyws                                                                         Grated VWndows
                  *o         box       o0 bL   071                                                    ii.

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                       &.1,(bl~' &/9
                      .Survey re'chnician                Date SurveyTe hni n                    Date ROIJ /a                    <3-s-       110                                               093Asml.cad B-121

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093B Survey Unit Name: TB - Feedwater Heater Area 5 and 6 Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000a-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2.100e+004 Statistical Quantities Measurement Name: Minimum Value 4.414e+002 Maximum Value 1. 118e+003 Range 6.766e+002 Median 8.828e+002 Std. Deviation 2.155e+002 Mean 8. 114e+002 95% UCL 8.781e+002 Measurement Values Location Value Location Value 000001 9.232e+002 000018 9.799e+002 000002 8.787e+002 000019 1. 041e+003 000003 9.880e+002 000020 9.273e+002 000004 9.273e+002 000021 9.516e+002 000005 4.981e+002 000022 5.547e+002 000006 8.706e+002 000023 8.584e+002 000007 8.-746e+002 000024 5.385e+002 000008 8.787e+002 000025 5. 183e+002 000009 4.900e+002 000026 5.062e+002 000010 9.313e+002 000027 4.981e+002 000011 9.354e+002 000028 9.597e+002 000012 8.868e+002 000029 1. OOOe+003 000013 8.503e+002 000030 1.118e+003 000014 4.414e+002 000015 1.057e+003 000016 4.657e+002 000017 9.921e+002 B-122

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093B Survey Unit Name: TB - Feedwater Heater Area 5 and 6 Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 677 Test Value Criteria Acceptable? Median: 883 Range 677 1,077 Pass Mean: 811 Median 0.332 0.500 Pass Std Dev: 215 Mean 811 10,500 Pass Minimum: 441 Std Dev 215 4,200 Pass Maximum: 1,118 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 80% 70%- SO% In0X-u: 40%

          ;. 30%
             ~20%

10% 0 500 1,000 1t500 2,000 2.500 3.000 3.500 4.000 4,500 5 000 499 999 1,499 1,999 2,499 2,999 3.499 3.999 4.499 4.999 5,499 Mleasured Radioactivity (dpnVlO0 crn2) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                    30                    1            499            0                 5          17%
           # of intervals:                11                    2            999          500               21          70%

Interval increment: 500 3 1,499 1,000 4 13% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% B-123

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093B Survey Unit Name: TB - Feedwater Heater Area 5 and 6 Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 2 Measurement Units: dpm/100cm 2 Investigation Level: 21,000 Minimum Value: 648 Maximum Value: 1,294 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/lOOcm 2 Investigation Level: 1,050 Minimum Value: 3 Mean: 10 Maximum Value: 18 Standard Deviation: 3 Discussion of Anomalous Measurement Data Investigation Summarv No investigation required for this survey unit. No anomalous measurement data. B-124

(7 C ( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093B Survey Unit Name: TB - Feedwater Heater Area 5 and 6 Static Measurement Locations Map sr4rIcs B-125

(C. ( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093B Survey Unit Name: TB - Feedwater Heater Area 5 and 6 Static Measurement Locations Map B-126

TROJAN FINAL SURVEY REPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093C Survey Unit Name: TB - 93' Elevation - East Turbine Floor Data Ouality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2. 100e+004 Statistical Quantities Measurement Name: Minimum Value 5.669e+002 Maximum Value 1.166e+003 Range 5. 991e+002 Median 9.820e+002 Std. Deviation 1.236e+002 Mean 9.738e+002 95% UCL 1. 012e+003 Measurement Values Location Value Location Value 000001 1. 118e+003 000018 8.746e+002 000002 1.077e+003 000019 5.669e+002 000003 1.166e+003 000020 1. 012e+003 000004 1.077e+003 000021 1.OOOe+003 000005 9.151e+002 000022 9.799e+002 000006 1.142e+003 000023 9.840e+002 000007 1.077e+003 000024 9.354e+002 000008 1. 142e+003 000025 9. 516e+002 000009 9.597e+002 000026 8. 179e+002 000010 1.004e+003 000027 8.260e+002 000011 1.093e+003 000028 8.908e+002 000012 1.004e+003 000029 1.073e+003 000013 9.516e+002 000030 9.070e+.002 000014 8.260e+002 000015 8.908e+002 000016 9.597e+002 000017 9.921e+002 B-127

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093C Survey Unit Name: TB - 93' Elevation - East Turbine Floor Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 596 Test Value Criteria Acceptable? Median: 982 Range 596 616 Pass Mean: 974 Median 0.065 0.500 Pass Std Dev: 123 Mean 974 10,500 Pass Minimum: 570 Std Dev 123 4,200 Pass Maximum: 1,166 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Freciuencv Distribution 60b r.. S. 0 500 ,.000 1.500 2,000 2.500 3,000 3.500 4,000 4.500 5,000 499 999 1,499 1.999 2499 2.999 3.499 3.999 4,499 4,999 5.499 Measured Radioactivity (dpmlO0 cm2) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                  30                   1            499           0                 0            0%
           # of intervals:              11                   2            999         500                17          57%

Interval increment: 500 3 1,499 1,000 13 43% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% B-128

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093C Survey Unit Name: TB - 93' Elevation - East Turbine Floor judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 10 Measurement Units: dpm/IOOcm 2 Investigation Level: 21,000 Minimum Value: 951 Maximum Value: 1,464 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/100cm 2 Investigation Level: 2,100 Minimum Value: 5 Mean: 11 Maximum Value: 20 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-129

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERI.ORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093C Survey Unit Name: TB 93' Elevation - East Turbine Floor Static Measurement Locations Man v - 1 -'. e e;

                                               *I 9          (9          '          q iI Q       -

ingmEM I I A 1- '

                                       .-.- ,,.                         i_ ,-,I

• Poio r mccleb 8:7c~fUcADCR.

S I Z 34 5 stME w(EIER) TROJAN FINAL SURVEY

         " e.o    " .l jI6,                                                                                O NWMV         Sx      .IRMVSIONDO.        IU
                                      *      .                                                                                   FtEVISI10 DAYS 1111/03 3!                                                               =EpRf 0   By       lC  "VPQ
        *0.4,m&__oKW I

I

                           /i            3-:5^2-ou
                                                    / V COHCKED 1c.

_ n. er

                                                                                                     -11.1-1zs
                                                                                                                   -             owGEDECRPEN I( _

nAIC bAOUK0 IIAT0M 134f 1 OLM VKV IV r/tflC B-130

TROJAN FINAL SURVEY REPORT-TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093D Survey Unit Name: TB 93' Elevation - Ejector Floor Area Data Quality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Tvpe Code Meas. Unit DCGL SGN WRS 1 33 DPM/100 CM2 2. 100e+004 Statistical Quantities Measurement Name: Minimum Value 5.479e+002 Maximum Value 2.320e+003 Range 1.772e+003 Median 1.950e+003 Std. Deviation : 6.422e+002 Mean 1.675e+003 95% UCL 1.864e+003 Measurement Values Location Value Location Value 000001 2.199e+003 000018 6.325e+002 000002 1.850e+003 000019 2.179e+003 000003 6.325e+002 000020 2.273e+003 000004 6.325e+002 000021 1.917e+003 000005 2.260e+003 000022 1.903e+003 000006 1.836e+003 000023 2. 166e+003 000007 2.166e+003 000024 1.950e+003 000008 2.085e+003 000025 7.534e+002 000009 2.166e+003 000026 6.688e+002 000010 6.728e+002 000027 2.320e+003 000011 5.479e+002 000028 1.944e+003 000012 1. 883e+003 000029 2.045e+003 000013 1.917e+003 000030 1.971e+003 000014 1.957e+003 000031 1.971e+003 000015 2.226e+003 000032 1.950e+003 000016 2.159e+003 000033 6.97Oe+002 000017 7.332e+002 B-131

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093D Survey Unit Name: TB 93' Elevation - Ejector Floor Area Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 1,772 Test Value Criteria Acceptable? Median: 1,950 Range 1,772 3,211 Pass Mean: 1,675 Median 0.429 0.500 Pass Std Dev: 642 Mean 1,675 16,800 Pass Minimum: 548 Std Dev 642 4,200 Pass Maximum: 2,320 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 35% 30'SE% 4I0% 20Y._% 0 500 1.000 1.500 2,000 2,500 3.000 3,500 4.000 4,500 5.000 499 999 1,499 1999 2.499 2,999 3,499 3.999 4.499 4,999 .5.499 Measured Radioactivity (dpm/100 cm2) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

      # of measurements:                 33                  1            499            0                 0           0%
            # of intervals:              11                  2            999          500                 9         27%

Interval increment: 500 3 1,499 1,000 0 0% Minimum: 0 4 1,999 1,500 12 36% Maximum: 5,499 5 2,499 2,000 12 36% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% Bimodality of data set is an artifact of the 8 3,999 3,500 0 0% two predominant material types - concrete 9 4,499 4,000 0 0% and metal. Data set passed acceptance criteria. 10 4,999 4,500 0 0% All data valid and accepted. 11 5,499 5,000 0 0% Total: 33 100% B-132

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093D Survey Unit Name: TB 93' Elevation - Ejector Floor Area Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 100 Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 769 Maximum Value: 2,808 Measurement Type: Removable Beta Number of Measurements: 33 Measurement Units: dpm/100cm 2 Investigation Level: 2,100 Minimum Value: 5 Mean: 11 Maximum Value: 19 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-133

C C TROJAN FINAL SURVEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS ( FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093D Survey Unit Name: TB 93' Elevation - Ejector Floor Area Static Measurement Locations Map

                                                                                                                I to
                                          ,                       EL. 93t6'                                CL)

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CLS' i2ect, = = _ 1 .1.. sa C&1cJ.tAtmeal >; > Jrf J4 z I~to t PLAN VIEW OF TROJtAN. FIN^L SURVEY

                                                                                 . MAPNO.              5     UP         REVISION NO.           _E
                                                 .                               PREPARE        BY MACRPNO.                                          E PL0N.- IREISISN HU  lEAwz

__**CHECKED BY =EEEC A.5 _ ESCOINOER " E A DA19EJ!t

                                                                                                                                            *5EA B-134

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093E Survey Unit Name: TB - South Floor and Turbine Shroud Exterior Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit. DCGL SGN WRS 1 42 DPM/100 CM2 2.100e+004 Statistical Quantities Measurement Name: Minimum Value 6.397e+002 Maximum Value 1.445e+003 Range 8.053e+002 Median 1.147e+003 Std. Deviation  : 2.369e+002 Mean 1.057e+003 95% UCL 1.119e+003 Measurement Values Location Value Location Value Location Value 000001 1.090e+003 000018 1.256e+003 000035 7.976e+002 000002 1.370e+003 000019 8.252e+002 000036 8.134e+002 000003 1.208e+003 000020 7.858e+002 000037 7.818e+002 000004 1.291e+003 000021 1.271e+003 000038 7.542e+002 000005 1.189e+003 000022 1.445e+003 000039 9. 161e+002 000006 1.090e+003 000023 1.370e+003 000040 8.687e+002 000007 1.125e+003 000024 1.291e+003 000041 8.726e+002 000008 1.208e+003 000025 1. 177e+003 000042 7.976e+002 000009 6.397e+002 000026 1.256e+003 000010 7. 621e+002 000027 7.937e+002 000011 1.169e+003 000028 8.173e+002 000012 6.673e+002 000029 1.228e+003 000013 1.335e+003 000030 8.845e+002 000014 1.248e+003 000031 1.335e+003 000015 1.287e+003 000032 1.228e+003 000016 1.256e+003 000033 8.805e+002 000017 1.232e+003 000034 7.897e+002 B-135

TROJAN FINAL SURVEYREPORT-TURBINEAND CONTROL BUILDING INTERIORS - FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093E Survey Unit Name: TB - South Floor and Turbine Shroud Exterior Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 805 Test Value Criteria Acceptable? Median: 1,147 Range 805 1,184 Pass Mean: 1,057 Median 0.379 0.500 Pass Std Dev: 237 Mean 1,057 16,800 Pass Minimum: 640 Std Dev 237 4,200 Pass Maximum: 1,445 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequencv Distribution 60%

r. 7

           = 30i         ~

t~o20%

          .0 0       500     1.000    1,500  2,000      2,50   3,000   3,500     4,000    4,500    5,000 499      999     1.499    1.999  2.499      2999   3.499   3.999     4.499    4.999    5.499 Measured Radioactivity (dpm/100 cm)

Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                     42                   1           499            0                 0           0%
           # of intervals:                 11                  2            999          500                18         43%

Interval increment: 500 3 1,499 1,000 24 57% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% l 5,499 5,000 0 0% Total: 42 100% B-136

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093E Survey Unit Name: TB - South Floor and Turbine Shroud Exterior Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 10 Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 640 Maximum Value: 1,480 Measurement Type: Removable Beta Number of Measurements: 42 Measurement Units: dpm/100cm 2 Investigation Level: 2,100 Minimum Value: 3 Mean: 10 Maximum Value: 18 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-137

( ( ( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093E Survey Unit Name: TB - South Floor and Turbine Shroud Exterior Static Measurement Locations Map 9_ L4Z 9 9.* i_*-r I -- 11t _o 11':- _1...__..__ i Il ll._ II30o r-] I 5I L 1.4- 4 I(&%2 i 2SP F-e: Z,7

                                                                                                                       '04 HI 7.rLII . Ii                 jzq F                                                               0          ]             4 R.

n-94 I 7 L 0- --- - -

                                       \-itMWTM                                                           IL         \    2 t SML IETZ Al E 1911C           IIET             UBIN      FLOOU RLANTK AT EL 1241`t MIR3NE FLOOR PLAN S74r1C5 B-138

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093F Survey Unit Name: TB 93' Elevation - West Turbine Floor Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit . DCGL SGN WRS 1 30 DPM/100 CM 2 2.100e+004 Statistical Quantities Measurement Name: Minimum Value 1.078e+003 Maximum Value 1.441e+003 Range 3.630e+002 Median 1.307e+003 Std. Deviation 8.955e+001 Mean 1.294e+003 95% UCL 1. 321e+003 Measurement Values Location Value Location Value 000001 1.358e+003 000018 1.303e+003 000002 1.346e+003 000019 1.398e+003 000003 1.279e+003 000020 1.121e+003 000004 1. 311e+003 000021 1.429e+003 000005 1.200e+003 000022 1.315e+003 000006 1.244e+003 000023 1.394e+003 000007 1.244e+003 000024 1.441e+003 000008 1.248e+003 000025 1.287e+003 000009 1. 331e+003 000026 1.315e+003 000010 1.335e+003 000027 1.335e+003 000011 1.244e+003 000028 1.177e+003 000012 1.414e+003 000029 1.181e+003 000013 1.271e+003 000030 1.267e+003 000014 1.208e+003 000015 1.323e+003 000016 1.410e+003 000017 1.078e+003 B-139

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093F Survey Unit Name: TB 93' Elevation - West Turbine Floor Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 363 Test Value Criteria Acceptable? Median: 1,307 Range 363 448 Pass Mean: 1,294 Median 0.150 0.500 Pass Std Dev: 90 Mean 1,294 16,800 Pass Minimum: 1,078 Std Dev 90 4,200 Pass Maximum: 1,441 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequencv Distribution 300% 90%J a w Cr 70%- 4" 60% - I- 50% I.2 40% 30% -

          .0 0      20*%

10% 0% 0 500 1.000 1,500 2,000 2.500 3,000 3.500 4.000 4,500 5,000 499 999 1,499 1,999 2,499 2.999 3.499 3,999 4.499 4,999 5,499 Measured Radioactivity (dpm/100 cm 2 ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                     30                  1             499            0                 0             0%
             # of intervals:               11                  2             999          500                 0             0%

Interval increment: 500 3 1,499 1,000 30 100% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% B-140

TROJAN FINAL SURVEY REPORT-TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093F Survey Unit Name: TB 93' Elevation - West Turbine Floor Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage(%): 10 Measurement Units: dpm/100cm2 Investigation Level: 21,000 Minimum Value: 1,313 Maximum Value: 1,796 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/lOOcm 2 Investigation Level: 2,100 Minimum Value: 5 Mean: 10 Maximum Value: 18 Standard Deviation: 3 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-141

( C TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS (C FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093F Survey Unit Name: TB 93' Elevation - West Turbine Floor Static Measurement Locations Map I 2 345 Sera Go rr I TROJAN FINAL SURVEY

        "    twmm,Pto, 41        9                                                                       IDRovumBY  I     _     I_[VISIW4IEN      Ii PPAREDBY   NC o f ~ R YSIN3 DAE          3317/

0ECKD BY OVaRIEEIECE

        ?t O. I M b - &A     f l   / 9   -0' -.f .         -                                                              R=IUD1 Ouninm  ELLYATUlID   TfT By     W.- _   _, ew-  l,,
                                       ,wf       J-Isawso ADOS
                                                                - I                                     I RnNmI                     KM__ __ nr 574rlc-s B-142

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093G Survey Unit Name: TB - East, West, and South Walls and Ceiling Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 40 DPM/100 CMZ 2.100e+004 Statistical Quantities Measurement Name: Minimum Value 4.809e+002 Maximum Value 1.656e+003 Range 1.175e+003 Median 6.744e+002 Std. Deviation  : 3.896e+002 Mean 8.909e+002 95% UCL 9.946e+002 Measurement Values Location Value Location Value Location Value 000001 7.702e+002 000018 6.685e+002 000035 1.289e+003 000002 5.904e+002 000019 6.294e+002 000036 1.561e+003 000003 1.044e+003 000020 4.809e+002 000037- 1.379e+003 000004 1.009e+003 000021 6.490e+002 000038 1.479e+003 000005 1.024e+003 000022 6.490e+002 000039 1.505e+003 000006 7.194e+002 000023 6.412e+002 000040 1.591e+003 000007 1.056e+003 000024 6.803e+002 000008 1. 071e+003 000025 5.669e+002 000009 5.004e+002 000026 6.490e+002 000010 4. 848e+002 000027 5.395e+002 000011 4. 926e+002 000028 6.881e+002 000012 6. 490e+002 000029 6.294e+002 000013 5.591e+002 000030 6.294e+002 000014 5. 943e+002 000031 1.596e+003 000015 6. 646e+002 000032 1.410e+003 000016 6.803e+002 000033 1. 518e+003 000017 6. 412e+002 000034 1. 656e+003 B-143

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093G Survey Unit Name: TB - East, West, and South Walls and Ceiling Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 1,175 Test Value Criteria Acceptable? Median: 675 Range 1,175 1,948 Pass Mean: 891 Median 0.555 0.500 See comment below Std Dev: 390 Mean 891 10,500 Pass Minimum: 481 Std Dev 390 4,200 Pass Maximum: 1,656 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 50% U as 40% a' I..

            =   30%

aW 20% 0 0 500 1.000 1.500 2,000 2,500 3.000 3.00 4.000 4.500 5,000 499 999 1.499 1.999 Z499 2999 3.499 3.999 4.499 4,999 5,499 2 Measured Radioactivity (dpmIlOO cm ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

      # of measurements:                    40                   1             499           0                 3           8%
            # of intervals:                  11                  2             999         500                22         55%

Interval increment: 500 3 1,499 1,000 9 23% Minimum: 0 4 1,999 1,500 6 15% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% Median failure is a test artifact resulting from a 8 3,999 3,500 0 0% slightly right skewed data set due to use of two 9 4,499 4,000 0 0% detector types (GFP & beta scint) for data 10 4,999 4,500 0 0% collection. The 10 beta scint measurements are 11 5,499 5,000 0 0% greater than 1400 dpm, while the 30 GFP are Total: 40 100% less than 1100 dpm, resulting in a median test value ethat just exceeds the 0.5 acceptance value. All data are valid and accepted. B-144

TROJAN FINAL SURVEY REPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093G Survey Unit Name: TB - East, West, and South Walls and Ceiling Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): I Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 707 Maximum Value: 1,473 Measurement Type: Removable Beta Number of Measurements: 40 Measurement Units: dpm/1OOcm 2 Investigation Level: 1,050 Minimum Value: 0 Mean: 9 Maximum Value: 18 Standard Deviation: 3 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-145

C ( TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093G Survey Unit Name: TB - East, West, and South Walls and Ceiling Static Measurement Locations Map 5r7r 7C-S B-146

(. TROJAN FINAL SURVEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093G Survey Unit Name: TB - East, West, and South Walls and Ceiling Static Measurement Locations Map EL,15- I ML. tCAfN RAIL SUPOT au"I aE21 MElS mma eL 314,. k_q7=z I~~ $ j_ II

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TROJAN FINAL SURVEY H aP l M2 REVISION1.E 0MIKED BY RCR fEVSON DRTE IYO REC 2I-3 OE~KEDBY ONOPD RF JR~ IFCl nws 00s nooco I3-7-6 rmrnT qYELEVATION 71WDe MUN ucrU RVTMIVIEV CZ LIM I B-147

C I TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RE4SULTS

SUMMARY

Survey Unit ID Code: S02093G Survey Unit Name: TB - East, West, and South Walls and Ceiling Static Measurement Locations Map Q Q Q

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CM6U REVISIONDATE I u)-28-e3 b DWREIDIENCEI A-TpCC ,-,I" ~ -17.0' WCALEWE TES) I RWO1nNX I 53' ELEVATlM4 TUR1?EBUIIM DESCR'IPION1 11"A11U VIW"-

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ILSU I V S ~7-47IcS .MNZj B-148

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093H Survey Unit Name: TB 93' Elevation - Turbine Deck Equipment Data Oualitv Values Type 1 Error  : 5.OOOe-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 30 DPM/100 CM 2 2.100e+004 Statistical Quantities Measurement Name: Minimum Value 4.887e+002 Maximum Value 1.189e+003 Range 7.003e+002 Median 7.213e+002 Std. Deviation 1.707e+002 Mean 7.624e+002 95% UCL 8. 153e+002 Measurement Values Location Value Location Value 000001 6.294e+002 000018 9. 148e+002 000002 5.982e+002 000019 6.803e+002 000003 6.373e+002 000020 7.585e+002 000004 1.189e+003 000021 9.070e+002 000005 8.406e+002 000022 1.173e+003 000006 7. 1 5e+002 000023 1.032e+003 000007 8.093e+002 000024 8.327e+002 000008 5.904e+002 000025 5.982e+002 000009 6. 451e+002 000026 6.764e+002 000010 8.601e+002 000027 4.887e+002 000011 6.842e+002 000028 5.200e+002 000012 6. 881e+002 000029 6.842e+002 000013 6.646e+002 000030 7.897e+002 000014 9.696e+002 000015 7.663e+002 000016 8. 015e+002 000017 7. 311e+002 B-149

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093H Survey Unit Name: TB 93' Elevation - Turbine Deck Equipment Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 700 Test Value Criteria Acceptable? Median: 722 Range 700 854 Pass Mean: 762 Median 0.240 0.500 Pass Std Dev: 171 Mean 762 16,800 Pass Minimum: 489 Std Dev 171 4,200 Pass Maximum: 1,189 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 100% 90% 80% 70%

            ~J60%

I. 50% _ 40%

            ,2   0%

20% 20% 0 500 1,000 1.500 2,000 2.500 3,000 3.500 4,000 4.500 5,000 499 999 1.499 1,999 2.499 2.999 3,499 3.999 4,499 4,999 5.499 Measured Radioactivity (dpm/100 cm2 ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                    30                  1             499           0                  1          3%
           # of intervals:                 11                 2             999         500                26         87%

Interval increment: 500 3 1,499 1,000 3 10% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% B-150

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093H Survey Unit Name: TB 93' Elevation - Turbine Deck Equipment Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 1 Measurement Units: dpm/100cm 2 Investigation Level: 21,000 Minimum Value: 764 Maximum Value: 1,420 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/100cm 2 Investigation Level: 2,100 Minimum Value: 3 Mean: 10 Maximum Value: 20 Standard Deviation: 4 Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. B-151

C C TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS ( FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S02093H Survey Unit Name: TB 93' Elevation - Turbine Deck Equipment Static Measurement Locations Map 4-0 SIL 2 34 S I TROJAN FINAL SURVEY PAeS * .. N" w M,,,, 1OA4VIlG to. I IS2M) lISVISION mm le lD e Ia c H ,. I VISM0 D^tE l03/I!#03

C SX

                                                                                           'CKED                    IVO REFERENCL I
             'Sc.-,                                   .,_ _          _       ___         go&A     _         taled_     J.aftOOhir wal IU-I            I                      -  -I.-           mm sr71Cc.0 S (,A;R //A%77oJj anew z      tj       f~ ry 4GL            eusuA;-g         5{&     / STm, B-152

TROJANFINAL SURVEY REPORT- TURBINEAND CONTROL BUILDING INTERIORS APPENDIX C SURVEY UNIT

SUMMARY

REPORTS - CONTROL BUILDING Survey Unit ID Code Page(s) S06045A.................................................................................................................C-2 through C-5 S06045B .... C-6 through C-9 S06045C .... C-O through C-16 S06045D .... C-17 through C-22 S06045E .... C-23 through C-26 S06045F .... C-27 through C-32 S06045G .... C-33 through C-39 S06054A.............................................................................................................C-40through C-43 S06061A.............................................................................................................C-44 through C-47 S06065A.............................................................................................................C-48 through C-51 S06077A.............................................................................................................C-52 through C-55 S06077B .... C-56 through C-59 S06093A.............................................................................................................C-60 through C-63 S06093B .... C-64 through C-67 S06093C .... C-68 through C-71 S06105A.............................................................................................................C-72 through C-75 C-1

TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045A Survey Unit Name: CB 45' Elevation - I&C Shop/Offices Data Qualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2. 100e+004 Statistical Quantities Measurement Name: Minimum Value 6.255e+002 Maximum Value 1.220e+003 Range 5.945e+002 Median 8.973e+002 Std. Deviation 1. 501e+002 Mean 9.345e+002 95% UCL 9.810e+002 Measurement Values Location Value Location Value 000001 8.445e+002 000018 9.774e+002 000002 7.076e+002 000019 1.005e+003 000003 6.255e+002 000020 1. 013e+003 000004 1.138e+003 000021 1.063e+003 000005 1.083e+003 000022 8. 210e+002 000006 9.657e+002 000023 8.327e+002 000007 1. 153e+003 000024 7.467e+002 000008 1.220e+003 000025 1.142e+003 000009 8.562e+002 000026 7.702e+002 000010 8.210e+002 000027 8.132e+002 000011 8.288e+002 000028 8.601e+002 000012 8.953e+002 000029 1. 122e+003 000013 1.106e+003 000030 1.020e+003 000014 8.875e+002 000015 1.005e+003 000016 8.992e+002 000017 8. 132e+002 C-2

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045A Survey Unit Name: CB 45' Elevation - I&C Shop/Offices Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 594 Test Value Criteria Acceptable? Median: 897 Range 594 750 Pass Mean: 935 Median 0.250 0.500 Pass Std Dev: 150 Mean 935 10,500 Pass Minimum: 626 Std Dev 150 4,200 Pass Maximum: 1,220 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 70% 20%_ 0 S5O 1.000 1.500 2,000 2,500 3,000 3.500 4,000 4,SOO 5.000 499 999 1,499 1.999 2,499 2.999 3.499 3,999 4,499 4,999 5,499 Measured Radioactivity (dpnf100 cm) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                   30                     1           499           0                 0           0%
           # of intervals:               11                     2           999         500                18         60%

Interval increment: 500 3 1,499 1,000 12 40% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE. 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% C-3

TROJANFINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045A Survey Unit Name: CB 45' Elevation - I&C Shop/Offices Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 3 Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 876 Maximum Value: 1,460 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/1OOcm 2 Investigation Level: 2,100 Minimum Value: 3 Mean: 10 Maximum Value: 23 Standard Deviation: 5 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-4

(( I TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045A Survey Unit Name: CB 45' Elevation - I&C Shop/Offices Static Measurement Locations Map C-5

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045B Survey Unit Name: CB 45' Elevation - Counting Room Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 31 DPM/100 CM2 7.500e+003 Statistical Quantities Measurement Name: Minimum Value 8.085e+002 Maximum Value 2. 511e+003 Range 1.703e+003 Median 9.235e+002 Std. Deviation 6.315e+002 Mean --- .  :. 1.239e+003.... 95% UCL 1.432e+003 Measurement Values Location Value Location Value 000001 8.975e+002 000018 8. 419e+002 000002 9.012e+002 0'00019 9.235e+002 000003 8. 122e+002 000020 9.086e+002 000004 8.864e+002 000021 8.975e+002 000005 9.828e+002 000022 1.050e+003 000006 8.159e+002 000023 1. 016e+003 000007 8.085e+002 000024 1.031e+003 000008 8.159e+002 000025 2.393e+003 000009 8.493e+002 000026 2.393e+003 000010 9.457e+002 000027 2.294e+003 000011 8.827e+002 000028 2.486e+003 000012 8.159e+002 000029 2.350e+003 000013 9.865e+002 000030 2.511e+003 000014 9.605e+002 000031 2.238e+003 000015 9.828e+002 000016 9.197e+002 000017 8.233e+002 C-6

TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045B Survey Unit Name: CB 45' Elevation - Counting Room Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 1,702 Test Value Criteria Acceptable? Median: 924 Range 1,702 3,157 Pass Mean: 1,239 Median 0.500 0.500 Pass Std Dev: 631 Mean 1,239 6,000 Pass Minimum: 809 Std Dev 631 1,500 Pass Maximum: 2,511 All data less than DCGL; Sign statistical test not required. DCGL: 7,500 Data Frequencv Distribution 80% W 60%

           "I 0'  50Y%  _           t I-  40% -

30% -

          '9 0    20%            I 10% a 0-s       -   I.rt V/*

0 500 1.000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 499 999 1.499 1,999 2,499 2.999 3,499 3.999 4,499 4,999 5,499 Measured Radioactivity (dprn100 cm 2) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                     31                       1          499            0                 0           0%
            # of intervals:                11                      2           999          500                21          68%

Interval increment: 500 3 1,499 1,000 3 10% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 6 19% 6 2,999 2,500 1 3% Comment: 7 3,499 3,000 0 0% NONE. 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 31 100% C-7

TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045B Survey Unit Name: CB 45' Elevation - Counting Room Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage(%): 20 Measurement Units: dpm/lOOcm 2 Investigation Level: 7,500 Minimum Value: 1,012 Maximum Value: 2,946 Measurement Type: Removable Beta Number of Measurements: 31 Measurement Units: dpm/lOOcm 2 Investigation Level: 750 Minimum Value: 34 Mean: 61 Maximum Value: 76 Standard Deviation: 11 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-8

C. ( TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS ( FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045B Survey Unit Name: CB 45' Elevation - Counting Room Static Measurement Locations Map i 1# So HK) \ LA II

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CEILING VIEW LOOKING WEST AT 8M" I IS SOHM I -I I A LOOKING NORTH LOOKING EAST LOOKING SOUTHI e- -+ LOOKING WEST AT COL.UHE48 AT CD.LIE 1 AT YVEW C-C L_- ATCM.L INe I I 2 3 4 5 SCA f TE AfSIt 9,0"T PEFOf Pr Ws MET. TROJAN FINAL SURVEY sicOftws P*Nf J i, 8 ?HSPHOY. U41 114 REVISION le PREPARED BY f C MOND REVISION DATE l04 MMtL zA334- Y, l CHECKED BY J C(PUER DO REFWEI-2 Tcor10_ *. s AREA/tWTXfET p COU4Tl3 ram _DESCRLPTIN 13 P4OCE T3 ELEVATION YIEV C-9

TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045C Survey Unit Name: CB 45' Elevation - Southeast Stairwell Data Quality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement TYpe Code Meas. Unit DCGL SGN NRS 1 33 DPM/100 CM 2 7.500e+003 Statistical Quantities Measurement Name: Minimum Value 6.868e+002 Maximum Value 1.355e+003 Range 6.682e+002 Median 9.806e+002 Std. Deviation 2. 160e+002 Mean 1. 021e+003 95% UCL 1.084e+003 Measurement Values Location Value Location Value 000001 1.179e+003 000018 1.259e+003 000002 1.355e+003 000019 9.806e+002 000003 8.089e+002 000020 6.868e+002 000004 1.168e+003 000021 9.005e+002 000005 7.746e+002 000022 8.967e+002 000006 7.822e+002 000023 7.860e+002 000007 1.179e+003 000024 7.135e+002 000008 1.072e+003 000025 8.127e+002 000009 8. 165e+002 000026 1.152e+003 000010 1.286e+003 000027 7.708e+002 000011 1.313e+003 000028 1.252e+003 000012 8. 013e+002 000029 1.278e+003 000013 1.313e+003 000030 1.175e+003 000014 1.160e+003 000031 9.158e+002 000015 8.242e+002 000032 9.386e+002 000016 8.547e+002 000033 1.255e+003 000017 1.221e+003 C-10

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045C Survey Unit Name: CB 45' Elevation - Southeast Stairwell Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 668 Test Value Criteria Acceptable? Median: 981 Range 668 1,080 Pass Mean: 1,021 Median 0.184 0.500 Pass Std Dev: 216 Mean 1,021 6,000 Pass Minimum: 687 Std Dev 216 1,500 Pass Maximum: 1,355 All data less than DCGL; Sign statistical test not required. DCGL: 7,500 Data Freauencv Distribution W U r-0 tU 0 I.500 2,000 2,500 3,000 3.500

                                             .999 s X     da499 Xivi999  3,499     3,999 Measu red Radioactivi ty (d pm/1 00 cmb Number of     Observation Plot Parameters                             Interval High End Low End Observations Frequency
     # of measurements:                33                   1             499              0             0           0%
             # of intervals:           11                   2              999           500            17         52%

Interval increment: 500 3 1,499 1,000 16 48% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE. 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 33 100% C-11

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045C Survey Unit Name: CB 45' Elevation - Southeast Stairwell Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 10 Measurement Units: dpm/lOOcm 2 Investigation Level: 7,500 Minimum Value: 941 Maximum Value: 1,788 Measurement Type: Removable Beta Number of Measurements: 33 MeasurementUnits: dpm/lOOcm 2 Investigation Level: 750 Minimum Value: 43 Mean: 61 Maximum Value: 82 Standard Deviation: 9 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-12

(. TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045C Survey Unit Name: CB 45' Elevation- Southeast Stairwell Static Measurement Locations Map 4-0 t2 So H

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(C C TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045C Survey Unit Name: CB 45' Elevation - Southeast Stairwell Static Measurement Locations Map CE 53 3SON i \<STsEOEIFC0?RMCA

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C C TROJANFINAL SURVEY REPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045C Survey Unit Name: CB 45' Elevation- Southeast Stairwell Static Measurement Locations Map

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(. ( TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS ( FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045C Survey Unit Name: CB 45' Elevation - Southeast Stairwell Static Measurement Locations Map E B o-d 0 o < I.- 0 I

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TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045D Survey Unit Name: CB 45' Elevation - Southeast Elevator, Shaft and Equipment Room Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code - Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 7.500e+003 Statistical Quantities Measurement Name: Minimum Value 5.740e+002 Maximum Value 1.453e+003 Range 8.790e+002 Median 1. 171e+003 Std.; Deviation 2.968e+002 Mean. - . . 1.042e+003. -. 95% UCL 1.134e+003 Measurement Values Location Value Location Value 000001 1.148e+003 000018 7.476e+002 000002 1. 389e+003 000019 1.258e+003 000003 1.194e+003 000020 1.215e+003 000004 1.300e+003 000021 1.201e+003 000005 1. 027e+003 000022 1.311e+003 000006 6. 944e+002 000023 1.392e+003 000007 7. 511e+002 000024 1.322e+003 000008 7. 015e+002 000025 5.740e+002 000009 6.767e+002 000026 7.370e+002 000010 1.332e+003 000027 6.626e+002 000011 1. 190e+003 000028 1.446e+003 000012 7.051e+002 000029 1.453e+003 000013 1.152e+003 000030 1.233e+003 000014 1.254e+003 000015 5. 917e+002 000016 7. 901e+002 000017 8.220e+002 C-17

TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045D Survey Unit Name: CB 45' Elevation - Southeast Elevator, Shaft and Equipment Room Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 879 Test Value Criteria Acceptable? Median: 1,171 Range 879 1,484 Pass Mean: 1,042 Median 0.433 0.500 Pass Std Dev: 297 Mean 1,042 6,000 Pass Minimum: 574 Std Dev 297 1,500 Pass Maximum: 1,453 All data less than DCGL; Sign statistical test not required. DCGL: 7,500 Data Frequency Distribution 70% 601% 4.~50%1

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30

          =o 20Y._ 61 10%

0% 0 500 1,000 1,500 2.000 2,500 3,000 3,500 4,000 4,500 5,000 499 999 1,499 1.999 2,499 2.999 3,499 3,9"9 4,499 4,999 5.499 Measured Radioactivity (dpm/100 cm2 ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                     30                   1            499            0                 0           0%
           # of intervals:                 11                   2             999         500                12         40%

Interval increment: 500 3 1,499 1,000 18 60% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE. 8 3,999 3,500 0 .0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% C-18

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045D Survey Unit Name: CB 45' Elevation - Southeast Elevator, Shaft and Equipment Room Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 15 Measurement Units: dpm/1OOcm 2 Investigation Level: 7,500 Minimum Value: 772 Maximum Value: 1,690 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/lOOcm 2 Investigation Level: 750 Minimum Value: 39 Mean: 61 Maximum Value: 76 Standard Deviation: 10 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-19

C ( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS ( FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045D Survey Unit Name: CB 45' Elevation - Southeast Elevator, Shaft and Equipment Room Static Measurement Locations Map

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( C TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS ( FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045D Survey Unit Name: CB 45' Elevation- Southeast Elevator, Shaft and Equipment Room Static Measurement Locations Map

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( C ( TROJAN FINAL SIR VEY REPORT- T1'RBINE AN)) CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045D Survey Unit Name: CB 45' Elevation - Southeast Elevator, Shaft and Equipment Room Static Measurement Locations Map I-

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TROJANFINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045E Survey Unit Name: CB 45' Elevation - Radiation Protection Offices and Lobby Area Data Oualitv Values Type . Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2.100e+004 Statistical Quantities Measurement Name: Minimum Value 6.372e+002 Maximum Value 1.381e+003 Range 7.438e+002 Median 9.062e+002 Std. Deviation 1.793e+002 Mean 9.182e+002 95% UCL 9.738e4002 Measurement Values Location Value Location Value 000001 8.776e+002 000018 7.326e+002 000002 9.997e+002 000019 6.944e+002 000003 8.814e+002 000020 9.234e+002 000004 8.890e+002 000021 6.639e+002 000005 9.310e+002 000022 6.906e+002 000006 1.171e+003 000023 7.364e+002 000007 7. 631e+002 000024 9.806e+002 000008 1.217e+003 000025 1.019e+003 000009 9.501e+002 000026 1.087e+003 000010 9.921e+002 000027 1. 072e+003 000011 7.631e+002 000028 8. 318e+002 000012 1. 152e+003 000029 7.822e+002 000013 1.381e+003 000030 9. 615e+002 000014 6.372e+002 000015 1.080e+003 000016 8.318e+002 000017 8.547e+002 C-23

TROJAN FINAL SURVEY REPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045E Survey Unit Name: CB 45' Elevation - Radiation Protection Offices and Lobby Area Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 744 Test Value Criteria Acceptable? Median: 906 Range 744 896 Pass Mean: 918 Median 0.069 0.500 Pass Std Dev: 179 Mean 918 10,500 Pass Minimum: 637 Std Dev 179 4,200 Pass Maximum: 1,381 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 801% 701% 3F0% s.. 3 01%

          -0 30~'

o20%: d . 10% 0 500 1,000 1,500 2,000 2.500 3,000 3.500 4,000 4,500 5,000 499 999 1,499 1,999 2,499 2,999 3,499 3,999 4.499 4,999 5,499 Measured Radioactivity (dpmilOO cm2 ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                         30                   1            499            0                 0            0%
            # of intervals:                    11                  2             999          500                21          70%

Interval increment: 500 3 1,499 1,000 9 30% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE. 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% C-24

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045E Survey Unit Name: CB 45' Elevation - Radiation Protection Offices and Lobby Area Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 5 Measurement Units: dpm/100cm 2 Investigation Level: 21,000 Minimum Value: 698 Maximum Value: 1,546 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/lOOcm 2 Investigation Level: 1,050 Minimum Value: 43 Mean: 61 Maximum Value: 88 Standard Deviation: 11 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-25

(7 (7 ( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045E Survey Unit Name: CB 45' Elevation - Radiation Protection Offices and Lobby Area Static Measurement Locations Man C-26

TROJAN FINAL SURVEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045F Survey Unit Name: CB 45' Elevation - Southwest Stainvell and Elevator Shaft Data Qualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2. 100e+004 Statistical Quantities Measurement Name: Minimum Value 5.609e+002 Maximum Value 1.377e+003 Range 8.161e+002 Median 1.103e+003 Std. Deviation 2.360e+002 Mean 1.064e+003 95% UCL . 1. 137e+003 Measurement Values Location Value Location Value 000001 1.255e+003 000018 1.377e+003 000002 8.280e+002 000019 1.084e+003 000003 5.723e+002 000020 9.501e+002 000004 5.609e+002 000021 1.Olle+003 000005 1.244e+003 000022 1. 133e+003 000006 1. 198e+003 000023 1.229e+003 000007 5.723e+002 000024 1.065e+003 000008 6. 410e+002 000025 1.355e+003 000009 1.370e+003 000026 1.236e+003 000010 1.213e+003 000027 1.145e+003 000011 1.313e+003 000028 1.030e+003 000012 9.386e+002 000029 1.122e+003 000013 1.026e+003 000030 1.240e+003 000014 1.248e+003 000015 1.038e+003 000016 1.004e+003 000017 9.158e+002 C-27

TROJANFINAL SURVEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045F Survey Unit Name: CB 45' Elevation - Southwvest Stairwell and Elevator Shaft Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 816 Test Value Criteria Acceptable? Median: 1,103 Range 816 1,180 Pass Mean: 1,064 Median 0.166 0.500 Pass Std Dev: 236 Mean 1,064 10,500 Pass Minimum: 561 Std Dev 236 4,200 Pass Maximum: 1,377 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution s0o% w U 1z.

          .2 0

0 500 1,000 X.500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 499 999 1,499 1,999 2,499 2.999 3,499 3,999 4,499 4,999 5,499 Measured Radioactivity (dpm/100 cm 2) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                   30                     1          499            0                 0           0%
            # of intervals:              11                    2           999          500                 8         27%

Interval increment: 500 3 1,499 1,000 22 73% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7. 3,499 3,000 0 0% NONE. 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% C-28

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045F Survey Unit Name: CB 45' Elevation - Southwest Stairwell and Elevator Shaft Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 5 Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 1,095 Maximum Value: 1,698 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpmll 00cm2 Investigation Level: 1,050 Minimum Value: 43 Mean: 62 Maximum Value: 88 Standard Deviation: 11 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-29

( C. TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS ( FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045F Survey Unit Name: CB 45' Elevation - Southwest Stairwell and Elevator Shaft Static Measurement Locations Map 4-4 SOH q ICNCETEI tW.TEtt u 5 so m (15TOt.

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a PR", pSf- __A pk;/-/,  ! PREPAEDI OC OCKEBY I- AAcC0t IOME VC MC2M R C MWHO IREVISICNDATE It5-4 J COOE muuTHOllM DvO R FlmvJI I IB MAN &4 frf1 E B LLVRW 2 E=VA%1l SWWI VI~EW W _______________--II C-30

C c TROJAN EJAAL SUR VEY REPORT- TURRI'NE AND CONTROL BUILDING INTERIORS C FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045F Survey Unit Name: CB 45' Elevation - Southwest Stairwell and Elevator Shaft Static Measurement Locations Map Ct % 09- 0 A

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C-31

( TROJAN ( FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING C INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045F Survey Unit Name: CB 45' Elevation - Southwest Stairwell and Elevator Shaft Static Measurement Locations Map o_ .

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lr~~In III -:"I.. ---- t-tl 6 I A d g t; ( ( 11" ( -H-77-T - H a S 2 SCALE 3 4 eVETERS)tc 5 P SU" nPit PER rPl.m9 TROJAN FINAL SURVEY SnTIS LK S4P 1~ 364 ~S REYIS1G~I?BL 9, FREPARED BY R CRAW REYSI DATE r4e-15-4 1Q111- 4 4 12C 12wy E A lDI REFEREC n *CNIA D IJ COOfR -2 GfL4ITEST STA~WNELL & ELEVATOR S1MT

                 -UMM:                                   mWe-r,                                         I DEFSaI-TIO    I                EILEiTM" Vnm nU -  I-V3 C-32

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045G Survey Unit Name: CB 45' Elevation - RCA Access/Egress Area Data Ouality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 31 DPM/100 CM 2 7.500e+003 Statistical Quantities Measurement Name: Minimum Value 4.922e+002 Maximum Value 2.298e+003 Range 1.806e+003 Median 7.593e+002 Std. Deviation  : 6.236e+002 Mean 1.048e+003 95% UCL 1.238e+003 Measurement Values Location Value Location Value 000001 5.800e+002 000018 7.326e+002 000002 6.067e+002 000019 6.067e+002 000003 7.173e+002 000020 6.830e+002 000004 7.326e+002 000021 7.135e+002 000005 5.609e+002 000022 6.105e+002 000006 6.525e+002 000023 7.593e+002 000007 8.204e+002 000024 8.738e+002 000008 7.708e+002 000025 2.063e+003 000009 9.425e+002 000026 2.248e+003 000010 8.738e+002 000027 2.248e+003 000011 8.280e+002 000028 2.298e+003 000012 8. 165e+002 000029 2.178e+003 000013 4.922e+002 000030 2.190e+003 000014 7.440e+002 000031 1.930e+003 000015 7.059e+002 000016 8.471e+002 000017 6.677e+002 C-33

TROJAN FINAL SURVEY REPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045G Survey Unit Name: CB 45' Elevation - RCA Access/Egress Area Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 1,806 Test Value Criteria Acceptable? Median: 759 Range 1,806 3,118 Pass Mean: 1,048 Median 0.464 0.500 Pass Std Dev: 624 Mean 1,048 6,000 Pass Minimum: 492 Std Dev 624 1,500 Pass Maximum: 2,298 All data less than DCGL; Sign statistical test not required. DCGL: 7,500 Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:              31                   1          499       0              1           3%
           # of intervals:           11                 2           999     500             23         74%

Interval increment: 500 3 1,499 1,000 0 0% Minimum: 0 4 1,999 1,500 1 3% Maximum: 5,499 5 2,499 2,000 6 19% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE. 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 31 100% C-34

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045G Survey Unit Name: CB 45' Elevation - RCA Access/Egress Area Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 10 Measurement Units: dpm/l00cm 2 Investigation Level: 7,500 Minimum Value: 847 Maximum Value: 3,089 Measurement Type: Removable Beta Number of Measurements: 31 MeasurementUnits: dpm/lOOcm 2 Investigation Level: 750 Minimum Value: 46 Mean: 62 Maximum Value: 76 Standard Deviation: 7 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-35

C TR(2JAiV FINAL SUR VEYYREPORT- TURBINE AND CONTROL BUILDING INTERIfORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045G Survey Unit Name: CB 45' Elevation - RCA Access/Egress Area Static Measurement Locations Map PLAN VIEW OF RWOMS 11,14,15,16,22 CEIUNG VIEW OF ROOMS 11,14,15,16,22 VMtY PIVP Eo KR W 413 AV. .7 NWP ?. TROJAN FINAL SURVEY 10481 IY1REVISIONm I _Xi 6-S PARED BY iR C MYHOD I lSR~n SO M1-4 E CHECKED BY 3J CD I UW REFERECE A-n

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____ . A *- I 2 J 4 5 I _ N I RC^ AHEOWERE ARM SOIE4E DTESI ESRU-TI1 _ PLAN a Cmm VIEW

                                                                                                                                                      *ut 4. 1 C-36

(C C TROJANFINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS ( FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045G Survey Unit Name: CB 45' Elevation - RCA Access/Egress Area Static Measurement Locations Map LOOKING EAST LOOKING WEST LOOKING NORTH LOOKING SOUTH ATFOt Z2 AT R4ON22 ATA14 ZZ ATFW ZI Li omL2SQ14 L so m ,SHciER) 03100 tGYB)VER2 MOW.NER) LOOKING WEST LOOKING EAST LOOKING NORTH LOOKING SOUTH LOOKING SOUTH LOOKING NORTH AT t15 ATRiD t5 AT ig A-A ATYIEW t AT Rl 15 AT FO 15 - 3 4 ROO 15 110M 15 SCAI.E 04ETER9tstE Rom ?talo PKtP 412MY. ._ TROJAN FINAL SURVEY

• 8S U4502 RMESL4 NO. Its FEDHY t C tM ID 1MV13U3N DATE 140 4 _

EDBy J tWU mmo REs1E AI-2 n 1 * / 't . DES OPETA AESS WREA ITIOt

• LE ATIWHYns C-37

C- (: C TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045G Survey Unit Name: CB 45' Elevation - RCA Access/Egress Area Static Measurement Locations Map C-38

(. C I\ TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06045G Survey Unit Name: CB 45' Elevation - RCA Access/Egress Area Static Measurement Locations Map LOOKING WEST LOOKING EAST AT CM. LW N' AT FQC*I U & U Foo is LOOKING EAST LOOKING WEST LOOKING SOUTH LOOKING WEST AT VE J-J AT YEWtK-ATY3V " AT yE' H "m11 _M U5< I 0 Sr"W 3VY..9 TROJAN FINAL SURVEY A WW 36404 I3IO NM. 16 MAPNM P1MVE BY ft C MHOM IMnhS DATE US-9"4

        -Tt     I9 yroRmmla.)g r^                 novl  LI c4  -0                         C

• 1 2 3 4*

fCKED Y 1 MEAWCOMMENI J _ D_ rA FP1153 mCE- _- MU sCAtz n DEStRV' _ .- ELEVATM VX" Fm 4 C-39

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06054A Survey Unit Name: CB 54' Elevation - RP/OPS Break Area Data Ouality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement TYpe Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2. 100e+004 Statistical Quantities Measurement Name: Minimum Value 4. 613e+002 Maximum Value 1.278e+003 Range 8.167e+002 Median 8. 914e+002 Std. Deviation : 2. 117e+002 Mean 9.153e+002 95t UCL 9.808e+002 Measurement Values Location Value Location Value 000001 8. 914e+002 000018 6.568e+002 000002 8.836e+002 000019 6.725e+002 000003 8.914e+002 000020 1.095e+003 000004 8.758e+002 000021 1.278e+003 000005 1.063e+003 000022 9.774e+002 000006 8.836e+002 000023 4. 613e+002 000007 1.200e+003 000024 1.189e+003 000008 6.177e+002 000025 1.216e+003 000009 9.735e+002 000026 1.060e+003 000010 7.350e+002 000027 1.020e+003 000011 7.976e+002 000028 1. 114e+003 000012 7.702e+002 000029 9.539e+002 000013 8. 132e+002 000030 5.864e+002 000014 1.056e+003 000015 7.858e+002 000016 7.115e+002 000017 1.228e+003 A2 C-40

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06054A Survey Unit Name: CB 54' Elevation - RPIOPS Break Area Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 817 Test Value Criteria Acceptable? Median: 891 Range 817 1,058 Pass Mean: 915 Median 0.115 0.500 Pass Std Dev: 212 Mean 915 10,500 Pass Minimum: 461 Std Dev 212 4,200 Pass Maximum: 1,278 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 70% e= 5 = 1~40% 030% 0 30% 0 500 1,000 1.500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 499 999 1,499 1,999 2,499 2,999 3,499 3,999 4,499 4.999 5,499 Measured Radioactivity (dpmn100 cm2) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                  30                   1            499            0                 1           3%
           # of intervals:               11                 2             999          500                18         60%

Interval increment: 500 3 1,499 1,000 11 37% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE. 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% C-41

TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06054A Survey Unit Name: CB 54' Elevation - RP/OPS Break Area Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 2 MeasurementUnits: dpm/100cm 2 Investigation Level: 21,000 Minimum Value: 1,013 Maximum Value: 1,845 Measurement Type: Removable Beta Number of Measurements: 30 MeasurementUnits: dpm/100cm2 Investigation Level: 2,100 Minimum Value: 3 Mean: 10 MaximumValue: 18 Standard Deviation: 3 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-42

TROJANFINAL SURVEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06054A Survey Unit Name: CB 54' Elevation - RP/OPS Break Area Static Measurement Locations Map C-43

TROJANFINAL SUR VEYREPORT- TURBINEEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Sunrey Unit ID Code: S06061A Survey Unit Name: CB 61' Elevation - "B" Switchgear, Mechanical Rooms Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2. 100e+004 Statistical Quantities Measurement Name: Minimum Value 3.870e+002 Maximum Value 1.425e+003 Range 1.038e+003 Median 7. 166e+002 Std. Deviation  : 3.238e+002 Mean 8.538e+002 95% UCL 9. 541e+002 Measurement Values Location Value Location Value 000001 5.686e+002 000018 6.160e+002 000002 7.502e+002 000019 3.870e+002 000003 6. 081e+002 000020 6. 199e+002 000004 6. 081e+002 000021 9.555e+002 000005 5.962e+002 000022 1.414e+003 000006 6.949e+002 000023 8. 410e+002 000007 5.252e+002 000024 1. 319e+003 000008 1.117e+003 000025 1.141e+003 000009 6.278e+002 000026 5.607e+002 000010 1.204e+003 000027 6. 910e+002 000011 8.568e+002 000028 1.346e+003 000012 1.181e+003 000029 1.271e+003 000013 1.279e+003 000030 1.425e+003 000014 7.384e+002 000015 6. 120e+002 000016 5.883e+002 000017 4.699e+002 C-44

TROJANFINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06061A Survey Unit Name: CB 61' Elevation - "B" Switchgear, Mechanical Rooms Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 1,038 Test Value Criteria Acceptable? Median: 717 Range 1,038 1,619 Pass Mean: 854 Median 0.424 0.500 Pass Std Dev: 324 Mean 854 10,500 Pass Minimum: 387 Std Dev 324 4,200 Pass Maximum: 1,425 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Freouencv Distribution 50s-45%- 40% - ______________________________ 35%- t, r. 30%/ C 25% 20%X t 0 15% 10*I 0 250 500 750 1,000 1,250 1.500 1.750 2,000 2,250 2,500 249 499 749 999 1,249 1.499 1,749 1,999 2,249 2.499 2.749 2 Measured Radioactivity (dpnI100 cm ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                  30                   1            249            0                 0           0%
            # of intervals:              11                  2            499          250                 2           7%

Interval increment: 250 3 749 500 14 47% Minimum: 0 4 999 750 4 13% Maximum: 2,749 5 1,249 1,000 4 13% 6 1,499 1,250 6 20% Comment: 7 1,749 1,500 0 0% NONE. 8 1,999 1,750 0 0% 9 2,249 2,000 0 0% 10 2,499 2,250 0 0% 11 2,749 2,500 0 0% Total: 30 100% C-45

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06061A Survey Unit Name: CB 61' Elevation - "B" Switchgear, Mechanical Rooms Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 3 MeasurementUnits: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 643 Maximum Value: 2,039 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/lOOcm 2 Investigation Level: 1,050 Minimum Value: 3 Mean: 8 Maximum Value: 16 Standard Deviation: 4 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-46

C ( ( TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06061A Survey Unit Name: CB 61' Elevation - "B" Switchgear, Mechanical Rooms Static Measurement Locations Man 15 oLP ., Ito 22 32 5 ~ ~ ~ v FMC

                  ,          ,'..                                                       _   _  _   _     _     _ __.q 82DMT~tES     PRIHT          SINDATE                 /TROJAN                                FINAL SURVEY TtaEa~z                                         4                     CLY       ~~Y WAl      =    1lOOsar+

C-47

TROJANFINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06065A Survey Unit Name: CB 65' Elevation - Electrical Auxiliary Area Data Ouality Values Type 1 Error  : S.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM2 2.100e+004 Statistical Quantities Measurement Name: Minimum Value 3.872e+002 Maximum Value 1.304e+003 Range 9.168e+002 Median 6.038e+002 Std. Deviation 2.915e+002 Mean 7.345e+002 95% UCL 8.249e+002 Measurement Values Location Value Location Value 000001 8.933e+002 000018 5.904e+002 000002 5.138e+002 000019 1.143e+003 000003 1. 304e+003 000020 5.713e+002 000004 4. 639e+002 000021 6.748e+002 000005 5.751e+002 000022 1.235e+003 000006 6. 671e+002 000023 5.713e+002 000007 4.754e+002 000024 5.751e+002 000008 7.285e+002 000025 6.748e+002 000009 1.273e+003 000026 5.099e+002 000010 3.872e+002 000027 1.139e+003 000011 1.254e+003 000028 6.940e+002 000012 7. 937e+002 000029 5.368e+002 000013 4. 064e+002 000030 5.406e+002 000014 6.173e+002 000015 5.559e+002 000016 5.023e+002 000017 1.169e+003 C-48

TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06065A Survey Unit Name: CB 65' Elevation - Electrical Auxiliary Area Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 917 Test Value Criteria Acceptable? Median: 604 Range 917 1,458 Pass Mean: 735 Median 0.449 0.500 Pass Std Dev: 292 Mean 735 10,500 Pass Minimum: 387 Std Dev 292 4,200 Pass Maximum: 1,304 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequencv Distribution 707Y. U Cr t

          .0 0      500     1.000     1.500  2.000     2.500   3.000    3,500     4,000    4,500    5,000 499     999     1,499     1,999  2.499     2.999   3.499    3,999     4,499    4,999    5.499 Measured Radioactivity (dpm'1 00 cm 2)

Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                    30                   1            499             0                 4         13%
            # of intervals:               11                  2             999           500                19         63%

Interval increment: 500 3 1,499 1,000 7 23% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE. 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% C-49

TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06065A Survey Unit Name: CB 65' Elevation - Electrical Auxiliary Area Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 2 MeasurementUnits: dpm/100cm2 Investigation Level: 21,000 Minimum Value: 579 Maximum Value: 1,417 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/100cm2 Investigation Level: 2,100 Minimum Value: 3 Mean: 9 Maximum Value: 17 Standard Deviation: 3 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-SO

(1/4 ( ( TROJANFINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06065A Survey Unit Name: CB 65' Elevation - Electrical Auxiliary Area Static Measurement Locations Map C-51

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06077A Survey Unit Name: CB 77' Elevation - Cable Spreading Room Data Quality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 2 1 30 DPM/100 CM 2. 100e+004 Statistical Quantities Measurement Name: Minimum Value 7.079e+002 Maximum Value 1.624e+003 Range 9.161e+002 Median 9.988e+002 Std. Deviation 2.759e+002 Mean 1.115e+003 95% UCL 1.201e+003 Measurement Values Location Value Location Value 000001 9.988e+002 000018 9.842e+002 000002 9.648e+002 000019 1. 168e+003 000003 1.406e+003 000020 9.794e+002 000004 7.855e+002 000021 1.474e+003 000005 1.343e+003 000022 9.018e+002 000006 1. 421e+003 000023 9.552e+002 000007 1.411e+003 000024 1. 610e+003 000008 7.079e+002 000025 9.309e+002 000009 1.571e+003 000026 1.474e+003 000010 7.467e+002 000027 9. 891e+002 000011 8.436e+002 000028 1.057e+003 000012 8.679e+002 000029 1.624e+003 000013 1.096e+003 000030 9.164e+002 000014 8.533e+002 000015 1.338e+003 000016 9.988e+002 000017 1.038e+003 C-52

TROJANFINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06077A Survey Unit Name: CB 77' Elevation - Cable Spreading Room Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 916 Test Value Criteria Acceptable? Median: 999 Range 916 1,380 Pass Mean: 1,115 Median 0.421 0.500 Pass Std Dev: 276 Mean 1,115 10,500 Pass Minimum: 708 Std Dev 276 4,200 Pass Maximum: 1,624 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 60% 501%

             =40%

3. 20%h 0% 01/. 0 500 1.000 11,500 2.000 2.500 3,000 3,500 4.000 4,500 5,000 I 499 999 1 499 1.999 2,499 2,999 3,499 3,999 4.499 4,999 5,499 2 Measured Radioactivity (dpm lOO cm ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                    30                   1            499            0                 0           0%
           # of intervals:                11                   2            999          500                16         53%

Interval increment: 500 3 1,499 1,000 11 37% Minimum: 0 4 1,999 1,500 3 10% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE. 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% C-53

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06077A Survey Unit Name: CB 77' Elevation - Cable Spreading Room Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 3 Measurement Units: dpm/100cm2 Investigation Level: 21,000 Minimum Value: 719 Maximum Value: 1,536 Measurement Type: Removable Beta Number of Measurements: 30 MeasurementUnits: dpm/100cm2 Investigation Level: 2,100 Minimum Value: 5 Mean: 10 Maximum Value: 20 Standard Deviation: 4 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-54

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06077A Survey Unit Name: CB 77' Elevation - Cable Spreading Room Static Measurement Locations Mali SIGNATURES PRINT SIGN DATE TECHNICIAN I ,4Ad / tA /l Lk ,0 A A -7 2. ' TECHNICIAN 2 ; " e°4 /O" / ,02w

                                                                                        /

TROJAN FINAL SURVEY DRAWING NM S06077A REVISION NO. 100 PREPARED BY PJOHNSON EISIN DATE 07-18-02 0 1 2 3 4 5 SCALE (METERS) CHECKED BY IDWO REFERENCE I AREA DESCRIPTION CONTROL BUMD S ELEVATION 77-FT 1 ~CABLE SPFADO MMO FILE NAWE/WCATID \M C-55

TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FiNAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06077B Survey Unit Name: CB 77' Elevation - Lobby, Computer, and Mechanical Rooms Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2. 100e+004 Statistical Quantities Measurement Name: Minimum Value 3.872e+002 Maximum Value 1. 112e+003 Range 7.248e+002 Median 6. 441e+002 Std. Deviation 1.942e+002 Mean 6.771e+002 95% UCL 7.373e+002 Measurement Values Location Value Location Value 000001 9.854e+002 000018 7.093e+002 000002 9.355e+002 000019 5.444e+002 000003 S.473e+002 000020 1.035e+003 000004 1. 112e+003 000021 8.588e+002 000005 5.828e+002 000022 5.521e+002 000006 8. 128e+002 000023 5.789e+002 000007 4. 678e+002 000024 5.061e+002 000008 5.291e+002 000025 4.448e+002 000009 5.023e+002 000026 4.217e+002 000010 6.250e+002 000027 3.872e+002 000011 7.438e+002 000028 6.633e+002 000012 5.253e+002 000029 7.515e+002 000013 6.019e+002 000030 7.553e+002 000014 9.087e+002 000015 6.825e+002 000016 7.706e+002 000017 4 .716e+002 C-56

TROJANFINAL SURVEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06077B Survey Unit Name: CB 77' Elevation - Lobby, Computer, and Mechanical Rooms Data Oualitv Values Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 725 Test Value Criteria Acceptable? Median: 644 Range 725 971 Pass Mean: 677 Median 0.171 0.500 Pass Std Dev: 194 Mean 677 10,500 Pass Minimum: 387 Std Dev 194 4,200 Pass Maximum: 1,112 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                30                  1         249       0              0           0%
           # of intervals:            11                 2          499     250              5          17%

Interval increment: 250 3 749 500 14 47% Minimum: 0 4 999 750 9 30% Maximum: 2,749 5 1,249 1,000 2 7% 6 1,499 1,250 0 0% Comment: 7 1,749 1,500 0 0% NONE 8 1,999 1,750 0 0% 9 2,249 2,000 0 0% 10 2,499 2,250 0 0% 11 2,749 2,500 0 0% Total: 30 100% C-57

TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06077B Survey Unit Name: CB 77' Elevation - Lobby, Computer, and Mechanical Rooms Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 3 MeasurementUnits: dpm/lOOcm2 Investigation Level: 21,000 Minimum Value: 685 Maximum Value: 1,448 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/100cm 2 Investigation Level: 1,050 Minimum Value: 2 Mean: 9 Maximum Value: 18 Standard Deviation: 4 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-58

( ( TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS C. FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06077B Survey Unit Name: CB 77' Elevation - Lobby, Computer, and Mechanical Rooms Static Measurement Locations Map 4$- SURVEYPERFRMED PERRP 452 RET. JSI. SIONATURES /P rT SN DATE TROJAN FINAL SURVEY

                                                                                           .RADI    m .        W77        IREYISD   NM    Joe TEDW*N4  I2                                        Z03                              PREMED BY        P.T49ww       ItREV!om DATE   In7im aI      3    4S 5 CHECM BY         J.            I DWO WFAC      I

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C-59

TROJANFINAL SUR VEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06093A Survey Unit Name: CB - Control Room, Interior Data Ouality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN W1RS 1 30 DPM/100 CM 2 2.lOOe+004 Statistical Quantities Measurement Name: Minimum Value 4.626e+002 Maximum Value 1.236e+003 Range 7.734e+002 Median 6.760e+002 Std. Deviation 2.271e+002 Mean 7.635e+002 95% UCL 8.339e+002 Measurement Values I Location Value Location Value 000001 9.492e+002 000018 6.341e+002 000002 1.089e+003 000019 5.304e+002 000003 5.464e+002 000020 9.771e+002 000004 4.626e+002 000021 5.304e+002 000005 1.073e+003 000022 5.663e+002 000006 1.236e+003 000023 6.34le+002 000007 1. 117e+003 000024 6.700e+002 000008 1. 157e+003 000025 8.016e+002 000009 9. 851e+002 000026 1.097e+003 000010 7.298e+002 000027 6.581e+002 000011 5. 464e+002 000028 6.301e+002 000012 7. 059e+002 000029 6.421e+002 000013 6.820e+002 000030 8.096e+002 000014 5.464e+002 000015 7.418e+002 000016 5. 982e+002 000017 5. 583e+002 C-60

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06093A Survey Unit Name: CB - Control Room, Interior Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 773 Test Value Criteria Acceptable? Median: 676 Range 773 1,136 Pass Mean: 763 Median 0.385 0.500 Pass Std Dev: 227 Mean 763 10,500 Pass Minimum: 463 Std Dev 227 4,200 Pass Maximum: 1,236 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Freguency Distribution 4, 0 0 500 1.000 1.500 2,000 2.500 3,000 3.500 4,000 4.500 5,000 499 999 1,499 1,999 2,499 2,999 3,499 3,999 4,499 4,999 5,499 Measured Radioactivity (dpmn100 emr) Number of Observation Plot Parameters Interval High End LowEnd Observations Frequency

    # of measurements:                   30                  1            499            0                 1           3%
           # of intervals:               II                 2             999          500               23          77%

Interval increment: 500 3 1,499 1,000 6 20% Minimum: 0 4 1,999 1,500 0 0%. Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE. 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% C-61

TROJAN FINAL SURVEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06093A Survey Unit Name: CB - Control Room, Interior Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage(%): 3 Measurement Units: dpm/lOOcm 2 Investigation Level: 21,000 Minimum Value: 697 Maximum Value: 1,641 Measurement Type: Removable Beta Number of Measurements: N/A Measurement Units: NIA Investigation Level: N/A Minimum Value: N/A Mean: N/A Maximum Value: N/A Standard Deviation: N/A Smears were not obtained at static measurement locations during Final Survey. Smears taken in the survey unit area during operational surveys indicated no removable contamination, with all smears less than 1,000 dpm/100cm 2 . Discussion of Anomalous Measurement Data Investigation Summary No investigation required for this survey unit. No anomalous measurement data. C-62

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06093A Survey Unit Name: CB - Control Room, Interior Static Measurement Locations Map C-63

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06093B Survey Unit Name: CB 93' Elevation - Cold Lab and 102' Elevation View Gallery Data Oualitv Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement TYpe Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2. lOOe+004 Statistical Quantities Measurement Name: Minimum Value *6.487e+002 Maximum Value 1.606e+003 Range 9.573e+002 Median 1.078e+003 Std. Deviation  : 2.253e+002 Mean 1.054e+003 95% UCL 1.124e+003 Measurement Values Location Value Location Value 000001 6.487e+002 000018 1.328e+003 000002 7.784e+002 000019 1.370e+003 000003 1.076e+003 000020 1.126e+003 000004 1.080e+003 000021 1.255e+003 000005 1.202e+003 000022 1.030e+003 000006 9.730e+002 000023 6.944e+002 000007 8.089e+002 000024 8.127e+002 000008 9.692e+002 000025 7.097e+002 000009 1.080e+003 000026 1.206e+003 000010 1.023e+003 000027 1.225e+003 000011 1.316e+003 000028 8.280e+002 000012 1.606e+003 000029 7.937e+002 000013 1.133e+003 000030 1.206e+003 000014 1.072e+003 000015 9. 615e+002 000016 1.198e+003 000017 1. llOe+003 C-64

TROJANFINAL SUR VEY REPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06093B Survey Unit Name: CB 93' Elevation - Cold Lab and 102' Elevation View Gallery Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 957 Test Value Criteria Acceptable? Median: 1,078 Range 957 1,127 Pass Mean: 1,054 Median 0.106 0.500 Pass Std Dev: 225 Mean 1,054 10,500 Pass Minimum: 649 Std Dev 225 4,200 Pass Maximum: 1,606 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 70%. 601% 50%/ I.40% 30% 20 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 499 999 1,499 1,999 2.499 2.999 3.499 3,999 4,499 4,999 5,499 2 Measured Radioactivity (dpm/100 cm ) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                 30                     1          499            0                 0             0%
          # of intervals:              11                     2          999          500                11           37%

Interval increment: 500 3 1,499 1,000 18 60% Minimum: 0 4 1,999 1,500 1 3% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE. 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% C-65

TROJANFINAL SUR VEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06093B Survey Unit Name: CB 93' Elevation - Cold Lab and 102' Elevation View Gallery Jud2mental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 5 Measurement Units: dpm/l00cm2 Investigation Level: 21,000 Minimum Value: 925 Maximum Value: 1,783 Measurement Type: Removable Beta Number of Measurements: 30 MeasurementUnits: dpm/lOOcm 2 Investigation Level: 1,050 Minimum Value: 42 Mean: 66 Maximum Value: 88 Standard Deviation: 11 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-66

C C TROJAN FINAL SUR VEY REPORT- TURBINE AND CONTROL RUILDINO INTERIORS C FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06093B Survey Unit Name: CB 93' Elevation - Cold Lab and 102' Elevation View Gallery Static Measurement Locations Map 4-0 PLAN VIEW OF ROOMS 59, 61, 62, 66, 71 & 74

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                       . K V     Ott IP gPtDMV W   m  Ip            KM    "D. I

_= fM D BY RJ'AMY P RY1S! DATE d t-"4 T10"c1v I- acst 6ez.o I 2 3 4 5 BY J. SUUEDCTERUM IWA mCO BUXDM ET I Trwl.Ic1~2eVA 1; Elk t16-2 COLDAIL.LEVATML= & W TEVW OJ.DRY fufi C-67

TROJAN FINAL SURJEYREPORT- TURBINAEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06093C Survey Unit Name: CB - 93' Elevation - Containment Access Area Data Ouality Values Type 1 Error  : 5.000e-002 Type 2 Error  : 5.OOOe-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Tvpe Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2. lOOe+004 Statistical Quantities Measurement Name: Minimum Value 6.525e+002 Maximum Value 1.477e+003 Range 8.245e+002 Median 9.999e+002 Std. Deviation 2.385e+002 Mean 9.965e+002 95% UCL 1.070e+003 Measurement Values Location Value Location Value 000001 1.042e+003 000018 1.293e+003 000002 1.244e+003 000019 9.005e+002 000003 9.768e+002 000020 7 . 135e+002 000004 1.183e+003 000021 1.339e+003 000005 8.700e+002 000022 1. 190e+003 000006 1.023e+003 000023 1.171e+003 000007 7.479e+002 000024 1.095e+003 000008 7.860e+002 000025 1.377e+003 000009 1. llOe+003 000026 7. 631e+002 000010 1. 045e+003 000027 8.433e+002 000011 1.309e+003 000028 8.204e+002 000012 6.525e+002 000029 1.149e+003 000013 7.440e+002 000030 1.477e+003 000014 8.738e+002 000015 7.059e+002 000016 7.822e+002 000017 6.677e+002 C-68

TROJAN FINAL SUR VEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06093C Survey Unit Name: CB - 93' Elevation - Containment Access Area Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 824 Test Value Criteria Acceptable? Median: 1,000 Range 824 1,192 Pass Mean: 997 Median 0.015 0.500 Pass Std Dev: 238 Mean 997 16,800 Pass Minimum: 653 Std Dev 238 4,200 Pass Maximum: 1,477 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution 60% 50h/2 e 40-1,1 g 30%

            -20%/fi 10%

0... 0 Soo 1.000 1,500 2.000 2.500 3,000 3.500 4,000 4,500 5.000 499 99 1,499 1.999 2,499 2.999 3,499 399 4,499 4,99 5,499 Measured Radioactivity (dpnV100 cmr) Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                   30                     1          499            0                 0           0%

Yof intervals: 11 2 999 500 15 50% Interval increment: 500 3 1,499 1,000 15 50% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE. 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% C-69

TROJANFINAL SUR VEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06093C Survey Unit Name: CB - 93' Elevation - Containment Access Area Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage(%): 10 MeasurementUnits: dpm/l00cm2 Investigation Level: 21,000 Minimum Value: 893 Maximum Value: 1,682 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/100cm 2 Investigation Level: 2,100 Minimum Value: 45 Mean: 63 Maximum Value: 86 Standard Deviation: 9 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-70

(. ( TROJANFINAL SURVEYREPORT- TURBINEAND CONTROL BUILDING INTERIORS (7 FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06093C Survey Unit Name: CB - 93' Elevation - Containment Access Area Static Measurement Locations Man

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TROJAN FINAL SURVEY C WPAVDO sow = I3REYZSEt4W TT..au t s, 2 y / D PEA D BY lU:IUY1 O I IJf N EWSIO fOATE S1o"0MW 2Pf

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TROJANFINAL SURVEY REPORT- TURBINEAND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06105A Survey Unit Name: CB 105' Elevation-Mechanical Room Data Oualitv Values Type 1 Error  : 5.OOOe-002 Type 2 Error  : 5.000e-002 Relative Shift  : 3.000e+000 Measurement # Of Measurement Type Code Meas. Unit DCGL SGN WRS 1 30 DPM/100 CM 2 2.100e+004 Statistical Quantities Measurement Name: Minimum Value 6.451e+002 Maximum Value 1.368e+003 Range 7.229e+002 Median 8.640e+002 Std. Deviation  : 2.159e+002 Mean 9.243e+002 95% UCL 9. 912e+002 Measurement Values Location Value Location Value 000001 8.406e+002 000018 9. 148e+002 000002 9.618e+002 000019 6.725e+002 000003 9.266e+002 000020 1.060e+003 000004 7.858e+002 000021 1.142e+003 000005 8.562e+002 000022 8 718e+002 000006 8.367e+002 000023 8.288e+002 000007 7.702e+002 000024 1.251e+003 000008 1.368e+003 000025 1.212e+003 000009 1.185e+003 000026 1.306e+003 000010 9.852e+002 000027 7'.037e+002 000011 1.282e+003 000028 7.741e+002 000012 1. 099e+003 000029 7. 194e+002 000013 9.031e+002 000030 7.389e+002 000014 6.451e+002 000015 7.233e+002 000016 6.529e+002 000017 7.115e+002 C-72

TROJANFINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06105A Survey Unit Name: CB 105' Elevation - Mechanical Room Measurement Data Statistical Evaluation Statistical Comparisons Statistical Quantities Calculated Acceptance Range: 723 Test Value Criteria Acceptable? Median: 864 Range 723 1,079 Pass Mean: 924 Median 0.280 0.500 Pass Std Dev: 216 Mean 924 10,500 Pass Minimum: 645 Std Dev 216 4,200 Pass Maximum: 1,368 All data less than DCGL; Sign statistical test not required. DCGL: 21,000 Data Frequency Distribution s0%. 70% W r, M0-. l~ 1. 4, 40% S 30% - _ " t 4, 0

              =0%E 0       500     1,000     1.500  2,000     2,500   3.000   3,500     4,000    4,500    5.000 499      999     1,499     1,999  2,499     2,999   3,499   3,999     4.499    4.999    5.499 Measured Radioactivity (dpmn100 cn 2 )

Number of Observation Plot Parameters Interval High End Low End Observations Frequency

    # of measurements:                    30                   1            499            0                 0           0%
           # of intervals:                11                  2              999         500               21          70%

Interval increment: 500 3 1,499 1,000 9 30% Minimum: 0 4 1,999 1,500 0 0% Maximum: 5,499 5 2,499 2,000 0 0% 6 2,999 2,500 0 0% Comment: 7 3,499 3,000 0 0% NONE. 8 3,999 3,500 0 0% 9 4,499 4,000 0 0% 10 4,999 4,500 0 0% 11 5,499 5,000 0 0% Total: 30 100% C-73

TROJAN FINAL SUR VEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS FINAL SURVEY RESULTS

SUMMARY

Survey Unit ID Code: S06105A Survey Unit Name: CB 105' Elevation - Mechanical Room Judgmental and Miscellaneous Measurement Data Measurement Type: Surface Scanning Beta Scan Coverage (%): 3 Measurement Units: dpm/100cm 2 Investigation Level: 21,000 Minimum Value: 832 Maximum Value: 1,726 Measurement Type: Removable Beta Number of Measurements: 30 Measurement Units: dpm/100cm 2 Investigation Level: 1,050 Minimum Value: 3 Mean: 10 Maximum Value: 20 Standard Deviation: 5 Discussion of Anomalous Measurement Data No investigation required for this survey unit. No anomalous measurement data. C-74

C ( TROJAN FINAL SURVEYREPORT- TURBINE AND CONTROL BUILDING INTERIORS C FINAL SURVEY RESULTS

SUMMARY

• Survey Unit ID Code: S02093H Survey Unit Name: TB 93' Elevation - Turbine Deck Equipment Static Measurement Locations Map SLIPMY PERFIPlEO PERAP 452 REV.1 SICNATS PRINT SIGN GAlE TECHNICIAI SqtYR -
• 2 TECIHICIAN / __VII

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                                                                                                                  -   .      1    I   4   -   .

ScAt 000R TROJAN FINAL SURVEY MAP NM tBRA lI RECYISIR M ni PREPMAEDBY l RAYIONO REVISION DATE I-17-3 I CHECK MY __ __ O RE Cs A_-74 OO" I In-U L _D I I I ON MIR nag r MIECHNICIL E lu0 - C-75}}