E900-05-027, Experimental Corporation Final Status Survey Report for OL6 and OL10, Snec Calculation Sheet

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Experimental Corporation Final Status Survey Report for OL6 and OL10, Snec Calculation Sheet
ML052010671
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Site: Saxton File:GPU Nuclear icon.png
Issue date: 07/14/2005
From:
GPU Nuclear Corp
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
E900-05-027, Rev 0
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Text

ORIGI NAL SNEC CALCULATION COVER SHEET

-CALCULATION DESCRIPTION Calculation Number Revision Number Effective Date Page Number E900-05-027 lo0 I of 9 Subject OL6 and OLIO Open Land Area - Survey Design Question 1 - Is this calculation defined as 'in QA Scope'? Refer to definition 3.5. Yes 0 No El Question 2- Is this calculation defined as a 'Design Calculation"? Refer to definitions 3.2 and 3.3. Yes 0 No El NOTES: If a 'Yes answer is obtained for Question 1,the calculation must meet the requirements of the SNEC Facility Decommissioning Quality Assurance Plan. If a 'Yes' answer is obtained for Question 2. the Calculation Originator's immediate supervisor should not review the calculation as the Technical Reviewer.

DESCRIPTION OF REVISION "Non-substantive Chancges". Entry by B.H. Brosev. 7111105 Description of Change to Calculation Affected Pages Section 1.1, Corrected total area to 22,436 m2 2 of 9 Table 4. Corrected OL10-3 entry (it was incorrectly fisted as OL10-1) 4 of 9 Replaced Attachment 2-1 to 2-3 which contained a missed piece of information that does Attachment 2-1 to 2-3 not In any way impact the calculation. Sampled areas for two samples was In error. I APPROVAL SIGNATURES Technical Reviewer Additional Review Additional Review

f- SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-027 0 Page 2 of 9 SAtec OL6 and OL10 Open Land Area - Survey Design 1.0 PURPOSE 1.1 The purpose of this calculation is to develop a survey design for SNEC site open land areas designated 0L6, and OL10 in the northern portion of the SNEC site. These areas are collectively -22.436 square meters in total surface area, and are divided into three (3) -

Class 2 survey units and one (1) Class 1 survey unit. This design applies only to open land areas. Additional designs may be developed for structural surfaces in these areas as deemed appropriate by SNEC management (where applicable). These areas are shown on Attachment 1-1.

1.2 OL10 is sub-divided into three (3) survey units while OL6 is considered one survey unit even though it is located in three (3) separate locations. These survey units have the following approximate surface areas:

  • OL10-1, -6,800 square meters,
  • OL10-2, -6,860 square meters,
  • 0L1 -3, -7,000 square meters, and
  • 0L6, -1,775 square meters 2.0

SUMMARY

OF RESULTS The following information should be used to develop a survey request for these survey units.

The effective DCGLw value is listed below for these survey units. The US NRC has reviewed and concurred with the methodology used to derive these values. See Attachment 2-1 through 2-3.

This mix is developed from samples taken from the OL6 area.

Table 1, DCGLw Values l SurveyUnits l VolumetricDCGLw(pC1g-Cs-137) l All 6.54 (4.9 A.L.)

NOTE. A.L Is the site Administrative Umit (75% of effective DCGLw) 2.1 Survey Design 2.1.1 Scanning of soil (and fill materials) shall be performed using a 2" D by 2" L Na!

detector with a Cs-1 37 window setting (Reference 3.1). The window shall straddle the Cs-137 662 keV full energy peak width (see typical calibration information on Attachment 3-1).

2.1.2 The instrument conversion factorlefficiency shall not be less than 206 cpmluRth -

Cs-137.

2.1.3 Other instruments of the type specified in Section 2.1.1 above may be used during the final status survey (FSS), but must demonstrate detection efficiencies at or above the value listed in Section 2.1.2.

nt_ SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-027 0 Page 3 of 9 Subject 0L6 and OL10 Open Land Area - Survey Design Table 2, Soil Scanning Parameters MDCscan (pCUg) - Cs-13rl Scan Speed (cmlsec) Maximum Distance from Surface 5.97 25 4' (gap between detector face & soil surface)

See Attachment 4-1 through 4-3 for actual calculations' 2.1.4 If a count rate greater than the action level of Table 2 is encountered during the scanning process, the surveyor should stop and locate the boundary of the elevated area. The surveyor should then mark the elevated area with stakes and/or other appropriate marking methods. To complete the investigation, sample elevated areas(s) IAW SNEC procedure E900-IMP-4520.04 (Reference 3.2), and Section 2.2 of this calculation.

2.1.4.1 Class 1 and Class 2 soil should be scanned using a serpentine pattern that is

-0.5 meters wide.

2.1.4.2 Scanning locations are randomly chosen on a per grid basis. Grids that can not be accessed should be clearly noted along with the reason for not completing the scan in that area. Scanning of partial grid areas is permitted with adequate documentation.

2.1.4.3The minimum number of scan locations are identified, and listed in Table 3 (see Attachment 5-1 for actual locations). Additional judgmentaVrandomly chosen grids are provided for the Class 2 areas so that a 50% scanning goal can be achieved even if some grid areas (or grid sections) are deemed inaccessible. There is no need to scan these extra grid areas if the minimum scanning goal is attained in the Class 2 areas (i.e., -50% coverage). Class 1 areas are scanned at 100% coverage for all available grids.

Table 3, Scanning Coverage Survey Unit Target Number of Grids to be Scanned Coverage OL10-1 -50% 34 needed (38 provided)

OL10-2 -50% 34 needed (38 provided)

OL10-3 -50% 35 needed (40 provided) 0L6 (all 3 sections) -100% All available See Attachment 5-1.

2.1.5 The minimum number of randomly located sample points required for these survey units is listed in the following Table (see Compass output on Attachment 6-1 through 6-11). The surveyor should attempt to collect all samples listed below, but must collect the minimum values listed for each survey unit.

r_- SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-027 I 0 l Page 4 of 9 Subject 0L6 and OL10 Open Land Area - Survey Design Table 4, Randomly Located Sample Points Survey Unit No. of Samples OL10-1 14 min. (18 provided)

OL1-02 14 min. (19 provided)

OL10-3 14 min. (18 provided)

OL6 16 min. (20 provided)

See Attachment 7-1 to 7.6 (7-6 = key (x, y) coordinates).

2.1.6 Sampling depth should be IAW Section 2.2.

2.1.7 Because the MDCscan (soil) is greater than the DCGLwc, 137. the Class 1 survey unit is evaluated lAW the 1Hot Spot" design criteria. No additional samples are necessary (see Attachment 6-11).

2.1.8 VSP (Reference 3.3) is used to plot some scan and sample point locations in the included diagrams (see Attachment 5-1, and 7-1 to 7-5). The actual number of random start systematically spaced measurement points may be greater than that required by the Compass computer code because of any or all of the following:

  • placement of the initial random starting point (edge effects),
  • odd shaped diagrams, and/or
  • coverage concerns 2.1.11 The starting points for physically locating sample sites in these survey units are based on measurements from key site grid pins (see Attachment 7-1 to 7-5 and 7-6 for key x, y coordinates). Sampling points are positioned using coordinates/measurements developed from these markers and the current site grid map.

2.1.12 Some sampling points may need to be adjusted to accommodate obstructions within these survey units. Contact the SR coordinator to report any difficulties encountered when laying out sampling points.

2.1.13 When an obstruction is encountered that will not allow collection of a sample, contact the cognizant SR coordinatorfor permission to delete the sampling point.

NOTE If remediation actions are taken as a result of this survey, this survey design must be revised or re-written entirely.

2.2 Sample elevated areas(s) IAW SNEC procedure E900-IMP-4520.04 (Reference 3.2) and the following.

2.2.1 Collect one meter deep samples at all locations listed in Attachments 7-1 to 7-5.

K- SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-027 0 Page 5 of 9 Subject OL6 and OL10 Open Land Area - Survey Design NOTE I Since the site surface dose model is 1 meter in depth, 1 meter deep samples must be collected to satisfy the initial sampling requirements of Section 2.1.5 (of this design).

Sections 4.2.3, 4.2.6 or 4.2.7 of site procedure E900-IMP-4520.04 are applicable when satisfying sampling requirements of this calculation.

2.2.2 Collect samples below one (1) meter (in 1 meter increments) to base materials (bed rock, bolder layers, etc.) at the following locations:

  • in OL10-2, sample points 10, 12,16 & 18
  • in OL6, sample point 15 NOTE 2 The area between grid lines -1 17 and -111, north of about the BJ grid line is an elevated area rising at least 8 feet above the surrounding grade. It appears to be a depository of building rubble and soils from earlier site excavations. Thus this area has been assigned several deep sampling requirements.

2.2.3 Clearly mark, identify and document all sample locations.

2.2.4 As a part of the investigation process, sample any location that is above the action level cited is Table 2.

3.0 REFERENCES

3.1 SNEC Calculation No. E900-03-018, 'Optimize Window and Threshold Settings for the Detection of Cs-137 Using the Ludlum 2350-1 and a 44/10 Nal Detector", 817/03.

3.2 SNEC Procedure E900-IMP-4520.04, 'Survey Methodology to Support SNEC License Termination".

3.3 Visual Sample Plan, Version 2.0 (or greater), Copyright 2002, Battelle Memorial Institute.

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

3.5 Plan SNEC Facility License Termination Plan.

3.6 SNEC Procedure E900-IMP-4500.59, uFinal Site Survey Planning and DQA7.

3.7 SNEC Survey Request No. SR-0151, SR-0152, SR-153, SR-0161, and SR-01163 covering areas in and around OL6 and OL10, August 2004.

3.8 GPU Nuclear, SNEC Facility, "Site Area Grid Map", SNECRM-020, Sheet 1, Rev 2, 1/29/03.

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

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

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

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

Ap m SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-027 I0 Page 6 of 9 Subject OL6 and OL10 Open Land Area - Survey Design 4.0 ASSUMPTIONS AND BASIC DATA 4.1 The Compass computer program is used to calculate the required number of random start systematic samples to be taken in the survey unit (Reference 3.4).

4.2 Characterization soil samples from this area are used as the initial estimate of variability.

These results are shown on Attachment 8-1. The grid locations where these samples were taken are also shown (Reference 3.7).

4.3 The MARSSIM Sign Test is applicable for this survey design. No background subtraction will be performed under this criteria during the application of the DQA.

4.4 The number of points chosen by Compass are located on the survey map for the survey unit by the Visual Sample Plan (VSP) computer code (Reference 3.4).

4.5 Reference 3.5 and 3.6 were used as guidance during the survey design development phase.

4.6 Typical background values in the 0L6 and OL10 are less than 300 cpm (Reference 3.7).

For purposes of calculating the MDCscan value used for planning purposes, background is assumed to be approximately 200 cpm.

4.7 The site area drawing used to determine the physical extent of the area is listed as Reference 3.8.

4.8 Remediation History No significant remediation has occurred in the OL10 areas with respect to open land area.

No significant concrete structures exist in this area. Those that do exist will be addressed in separate survey designs as deemed appropriate by SNEC management.

0L6 areas have been remediated to a depth of several feet. Subsequent sampling has shown these areas to now be less than the applicable DCGLw. This area is a Class 1 area.

4.9 This survey design uses Cs-137 as a surrogate to bound the average concentration for all SNEC facility related radionuclides in the survey unit. The effective DCGLw is just the permitted Cs-137 concentration (6.6 pCi/g) lowered to compensate for the presence (or potential presence) of other SNEC related radionuclides. In addition, an administrative limit (75%) has been set that further lowers the permissible Cs-1 37 concentration to an effective DCGLw for this radionuclide.

4.10 The sample database used to determine the effective radionuclide mix for the OL10 area has been drawn from samples that were assayed at off-site laboratories. This list is shown on Attachment 2-2. The data shows Cs-1 37 to be the predominant radioactive contaminant found in these areas.

The decayed set of sample results were input to the spreadsheet titled "Effective DCGL Calculator for Cs-137' (Reference 3.9) to determine the effective volumetric DCGLw values. The output of this spreadsheet is shown on Attachment 2-3.

4.11 The Nal scan MDC calculation is determined based on a 25 cm/sec scan rate, a 1.38 index of sensitivity (95% correct detection probability and 60% false positive) and a detector sensitivity of 206 cpm/uRlh for Cs-137. Additionally, the detection system incorporates a Cs-1 37 window that lowers sensitivity to background in the survey unit.

SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-027 0 Page 7 of 9 Subject 0L6 and OL10 Open Land Area - Survey Design 4.12 The survey units described in this survey design were inspected by site personnel. A copy of portions of the SNEC facility post-remediation inspection report (Reference 3.10), is included as Attachment 9-1 to 9- *? .

4.13 No special area characteristics including any additional residual radioactivity (not previously noted during characterization) have been identified in this survey area.

4.14 The decision error for this survey design is 0.05 for the a value and 0.1 for the f3 value.

4.15 'Special measurements' (as described in the SNEC LTP) are not included in this survey design.

4.16 No additional sampling will be performed IAW this survey design beyond that described herein.

4.17 SNEC site radionuclides and their individual DCGLw values are listed on Exhibit I of this calculation.

4.18 The survey design checklist is listed in Exhibit 2.

4.19 Area factors are shown as part of Compass output (see Attachment 6-1).

5.0 CALCULATIONS 5.1 All calculations are performed internal to applicable computer codes or within an Excel spreadsheet.

6.0 APPENDICES 6.1 Attachment 1-1, is a diagram of survey areas 0L6 and OL10 areas (northern sector of SNEC site).

6.2 Attachment 2-1 to 2-3 is the sample results from the 0L6 site area. In addition, the DCGL calculation sheet has been included.

6.3 Attachment 3-1, is a copy of calibration data from typical Nal radiation detection instrumentation that may be used in this survey area (IAW Section 2.1.2).

6.4 Attachment 4-1 through 4-3, is the MDCscan calculation and supporting MicroShield output for volumetric materials.

6.5 Attachment 5-1, is the scan locations for the OL1 0 survey units.

6.6 Attachment 6-1 through 6-11, are Compass output for the 0L6, and the OL10 areas showing the number of required sampling points for these survey units.

6.7 Attachment 7-1 to 7-6, are the sample point locations with key coordinates for each survey unit own shon Attachment 7-6.

6.8 Attachment 8-1, is the soil variability results for selected soil samples from the 0L6 and OL10 areas.

6.9 Attachment 9-1 to 9- & , is a copy of selected portions of the inspection reports for these survey units.

AFtr~ K SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-027 0 Page 8 of 9 Subject 0L6 and OLI0 Open Land Area -Survey Design Exhibit I SNEC Facility Individual Radionuclide DCGL Values (a) 25 mremly Limit 4 mremly Goal 25 mremly Limit (All Pathways) (Drinking Water)

Radionuclide Surface Area Open Land Areas Open Land Areas (b)

(dpm/100cm2) (Surface & Subsurface) (Surface & Subsurface)

(pci/g) (pCi!9)

Am-241 2.7E+01 9.9 2.3 C-14 3.7E+06 2 5.4 Co-60 7.1 E+03 3.5 67 Cs-1 37 2.8E+04 6.6 397 Eu-152 1.3E+04 10.1 1440 H-3 1.2E+08 132 31.1 Ni-63 1.8E+06 747 1.9E+04 Pu-238 3.OE+01 1.8 0.41 Pu-239 2.8E+01 1.6 0.37 Pu-241 8.8E+02 86 19.8 Sr-90 8.7E+03 1.2 0.61 NOTES:

(a) While drinking water DCGLs will be used by SNEC to meet the drinking water 4 mremly goal, only the DCGL values that constitute the 25 mrem/y regulatory limit will be controlled under this LTP and the NRC's approving license amendment (b) Listed values are from the subsurface model. These values are the most conservative values between the two models (i.e..

surface & subsurface).

ai m SNEC CALCULATION SHEET Calculation Number Revision Number Page Number E900-05-027 l 0 l Page9of 9 Subject OL6 and OLI0 Open Land Area -Survey Design Exhibit 2 Survey Design Checklist Calculation No. lLoration Codes E900-05-027 IOL6 & OLI 0 Open Land Areas Status Reviewer REVIEW FOCUS (Circle One) Initials & Date Has a survey design calculation number been assigned and is a survey design summary description provided?

2 Are drawings/diagrams adequate for the subject area (drawings should have compass Ye N 4*5 headings)? NA46 3 Are boundaries properly identified and is the survey area classification clearly indicated? N/A IYe 4 Has the survey area(s) been properly divided into survey units LAW EXHIBIT 10 Ye N/A '1-5 Are physical characteristics of the areaflocation or system documented? ( Nj/A£ 6 Is a remediation effectiveness discussion included?

7 Have characterization survey and/or sampling results been converted to units that are e N/A comparable to applicable DCGL values?

8 Is survey and/or sampling data that was used for determining survey unit variance included? N/ A q4105 9 Is a description of the background reference areas (or materials) and their survey and/or 412JI.,

sampling results included along with a justification for their selection? Y e s ,

10 Are applicable survey and/or sampling data that was used to determine variability included? "/N/A 11 Will the condition of the survey area have an impact on the survey design, and has the Yes, probable impact been considered in the design? Y s _G_ _

Has any special area characteristic incduding any additional residual radioactivity (not 12 previously noted during characterization) been identified along with its impact on survey Yest 13 Are all necessary supporting calculations and/or site procedures referenced or included? (Yes,"21/

14 Has an effective DCGLw been identified for the survey unit(s)? CYs N/A 15 Was the appropriate DCGLEUc included in the survey design calculation?

16 Has the statistical tests that will be used to evaluate the data been identified? () N/A 17 Has an elevated measurement comparison been performed (Class 1 Area)? Yes,.1 4N,/js, 18 Has the decision error levels been identified and are the necessary justifications provided? (i) N/A L/of 19 Has scan instrumentation been identified along with the assigned scanning methodology? (S) N/A 20 Has the scan rate been identified, and is the MDCscan adequate for the survey design? CD N/A Lit I 21 Are special measurements e.g., in-situ gamma-ray spectroscopy required under this design, N/A and is the survey methodology, and evaluation methods described? X .2~'

22 Is survey instrumentation calibration data included and are detection sensitivities adequate? s N/A L5 23 Have the assigned sample and/or measurement locations been clearly identified on a diagram l Al or CAD drawing of the survey area(s) along with their coordinates? V esj NM I&II 24 Are investigation levels and administrative limits adequate, and are any associated actions clearly indicated? Ye N/A 25 For sample analysis, have the required MDA values been determined.? Yes, N/A 26 Has any special sampling methodology been identified other than provided in Reference 6.3? Yes N5 NOTE: a copy of this completed form or equivalent, shall be included within the survey design calculation.

132 131 130 29 128 127 INe 126 2 03 -0 10I -0 1, II0 -~ -1 11" t I ll" "II "I II 106 l. 107 106 106 Id 03 10 101 106 06 9 ST F , F- 1-=--I- -- --

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a 00_.iZLt1 0 1 #78. 0/ 0 ?I,,I ATTACHENT C0 0)

DCGL Calculation Logic - SNEC Facility Open Land Area OL6 & OL10 Survey Units: SNEC Site survey unit named OL6 and OL10

11.

Description:

The purpose of this calculation is to determine a representative isotopic mix from available sample analyses for the OL6 and the OL10 survey areas of the SNEC Facility site. The effective volumetric DCGLWs are then determined from the mean percent of applicable samples.

Ill. Data Selection Logic Tables: The radionuclide selection logic and subsequent DCGL calculations are provided in five (5) tables. These tables were developed using Microsoft Excel. Table explanation is as follows.

Table 1: Raw Data Listing - This table provides a list of four (4) representative sample analysis results. Results are from scoping, and characterization survey activities of the OL4, OL5 & OL6 site areas (adjacent to OL1 0). The samples consist of soil samples that were taken in support of the aforementioned activities. As applicable, a sample number, sample location/description, radionuclide concentrabon, and analysis date are provided for each sample. Positive nuclide concentrations are noted with yellow shaded background fields while MDA values are noted in the gray shaded fields.

Table 2: Reduced Data Listing of Positive Results, MDAs Removed - This table provides the best overall representation of the raw data from table 1. Non-positive nuclide columns have been removed as well as all the MDA values leaving four (4) sample results. Thus, eleven (11) nuclides have been reduced to five (5) in this table.

Table 3: Decayed Sample List of Positive Results - This table decays the data from Table 2. Half-life values (in days) are listed above each respective nuclide column. Samples are decayed from their respective analysis date to March 15, 2005. Only positive results were decayed.

Table 4: Ratio to Cs-1 37 for Positive Sample Data - This table provides the calculation methodology for determining the surrogate ratio to Cs-1 37 for each radionuclide. From this information the mean, and mean % of total are calculated. The mean % of total values (normalized to 100%) are then used to calculate the effective volumetric DCGLW per MARSSIM equation 1-14.

See Table 5. Note that the mean percent values were averaged using only the positive sample results in each column. In some cases only a single nuclide value (e.g. Pu-238) had a positive result. This value is listed as the mean value in the tabulation. Therefore, this treatment results in a higher mean percent of total' value for the mix, which is considered a conservative approach.

Table 5: Effective DCGL Calculator for Cs-137 (in pCig) - This table provides the surrogate volumetric modified Cs-137 DCGLW calculation results from data derived from Table 4.

IV. Summary - The OL6 and OL10 site areas (OL4 & OL5 are adjacent to these areas), are largely soils and or rock material thus the release limit is based on a volumetric DCGLW. Additionally, these areas are in close proximity of each other. Using the above data selection logic tables the calculated Cs-1 37 surrogate volumetric DCGLW is 6.54 pCi/g. This value is reduced by 25% as part of the SNEC facilities commitment to apply an administrative limit as discussed in the License Termination Plan (LTP). Thus this methodology is considered a conservative approach.

ATTACHMEV1EN C

TARI F I RAW DATA I S-TING I SNEC Sample No LAB No. LocationlDescription H-3 Sr-90 Co4 CS-137 Am-241 Pu-238 Pu.239 Pu-241 C-14 Ni43 Eu.152 AnalysIs Da"e SXSL5345 Teledyne, L23623-1 & L23663-.1RI BN-106, AP-1 @1Z'. OL6 0.519 0.0181 0.126 378 .Q95 0,0218 0.0026 1.48 0.1 2.7 0.769 May 27, 2004 SXSL4722 Teledyne; L23550-4 GRID BN-114, AP2, OL6 0.491 I 0.0394 0.068 I 64.6 l 0.0144 0.028 2.92 i 0.14916.1 April 15, 2004 SXSL4873 Teslsne; L23650-2 GRID BF-118, AP1, 0L4 0.606 0.0341 2.15 213 1 0.0423 0.0423 0.0695 1.62 0.184 27.4 .657 April 28, 2004 SXSL4665 Teledyne; L23305-1 GRID BP-93 S.Soll - OL5 0,642 0.285 0.216 714 l 0. 09 0.0157 0157

.1 01711 0. April 7, 2004 KEY Yellow Shaded Background - Positive Result IGray Shaded Background - MDA TABLE 2, REDUCED DATA LISTING OF POSITIVE RESULTS, MDAs REMOVED SNEC Sample No LAB No. Locatlon/Descriptlon Sr-90 Co-60 Cs-137 Pu-238 Pu-239 Analysis Date SXSL4665 Teledyne; L23305-1 GRID BP-93 S.Soil - 0L5 0.285 0.216 714 004 SXSL4722 Teledyne; L23550-4 GRID BN-1 14, AP2, 0L6 0.0394 64.6 II A 15, 2004 SXSL4873 Teledyne; L23550-2 GRID BF-118, AP1, 0L4 0.0341 2.15 213 0.0423 0.0695 April 28, 2004 SXSL5345 Teledyne, L23663-1 & L23663-I RI BN-106, AP-1 @ 12", 0L6 0.0181 0.126 378 May 27, 2004 TABLE 3, DECAYED SAMPLE LIST OF POSITIVE RESULTS T 112 (d) T 112 (d) T 1/2 (d) T 1/2 (d) T 112 (d) Decay Date 10446.2 1925.23 11019.59 32050.7 8813848 3/15/2005 SNEC Sample No LAB No. Location/Descriptlon Sr-90 Co60 Cs-I 37 Pu-238 Pu-239 Elapsed (d) Analysis Date SXSL4665 Teledyne; L23306-1 GRID BP-93 S.Soil - 0L5 0.279 0.191 698.807 342 April 7, 2004 SXSL4722 I Teledyne; L23550-4 GRID BN-1 14, AP2, 0L6 0.039 I 63.257 I Il 334 lApril 15, 2004 SXSL4873 Teledyne; L23560-2 GRID BF-118, AP1, 0L4 0.033 1.915 208.743 0.042 0.069 321 April28, 2004 SXSL5345 Tel ne, L23663-1 &L23663-1RI BN-106,AP-1 @12", 0L6 0.018 0.113 371.122 292 Ma 27, 2004 2

ATHACMEN'

TABLE 4, RATIO TO Cs-137 FOR POSITIVE SAMPLE DATA SNEC Sample No LAB No. Location/Description Sr-90 Co-60 Cs-137 Pu-238 Pu-239 Analysis Date SXSL5345 Teledyne, L23663-1 & L23663-IRI BN-106, AP-1 @ 12", 0L6 0.00040 0.00027 1.00000 _ __ _ May 27, 2004 SXSL4722 Teledyne; L235504 GRID BN-114, AP2, 0L6 0.00061 1.00000 April 15, 2004 SXSL4873 Teledyne; L23550-2 GRID BF-118, AP1, 0L4 0.00016 0.00918 1.00000 0.00020 0.00033 April 28, 2004 SXSL4665 Teledyne; L23305-1 GRID BP-93 S.Soil - 0L5 0.00005 0.00031 1.00000 April 7, 2004 Mean=> 0.00030 0.0033 1.0000 0.0002 0.0003 STDEV=> 0.00025 0.0051 0 . Total Normalized to 100%=> 0.03% 0.32% 99.59% 0.02% 0.03% 100.00%

Table 5 75%

Effective DCGL Calculator for Cs-1 37 (in pCilg)  ! 6.56 Ip'ig 1 4.92 jpCi/g SAMPLE 1lUMBER(sJ* 0L6 Op en Land At e.

15.30% 25.0 mu em.' TEDE Limit 6.54 pCig 4.90 pCl!g 0.45% _ mi enty Deinkit Wate. IDWI Limit Sample Inputthl UI_

(i)Cg, tCil, 25 mfemly TEDE A - Allowed pClito Value Checked ftom This Sample Isotope etco. 'of Total Limits fpCigl 25 menemly TEDE Column A oe B nmuemtyTEDE 1 Ami-241 °0.000% 9 9 - ° °ltA241 z C-14 0.000% 2.0 0.00 11000 0.00 C-14 3 Co-60 0.0033 0.324% 3.5 0.02 0.02 0.02 Co40 4 Cs-137 1.0000 99.593% 6.6 6.54 3.79 Cs-137 s Ei-.152 0.000% 10.1 _°° 0.00 0.00 _uu-1 52 6 H-3 0.000% 132 0.00 0.00 0.00 H-3 7 Ni-63 0.000% 747 l 000 _000 l000 li43 a Pu-2338 0.0002 0.020% 1.8 9 Pu-239 0.0003 0.033% 1.6 OM 0.00 0.01 29 i* Pti-241 0.000% 86 .0.000 P24 1'l Si-90 0.0003 0.030% 1.2 .. 0.00 .0.00 00 I9 i1.OOE+00 100.000% 6.56 225.32 6.56 3*25 0.018 Maximum Poo missfle Maximum To Use This hioi mlion l pCilg Pe. missile pClg Sample hptd Ur*s Must Be in 425 littem.: 44 muenvy) Icln 3

ATTACHMENT a f3_ C 0o

2350 INSTRUMENT AND PROBE EFFICIENCY CHART 02/22105 Added 2350-1 #126218 with 43-68 #095080 and 2350-1

  1. 126188 with 43-68 #099186. Returned from DURATEK following calibration. Typical - 2" by 2" Nal (w) Inst Response InsL# Cal Due AP# Probe - Cal Due cpn/mRfh 95361 6/25/05 P&W 25686 Pk 6/28/05 211,799 98620 12/01/05 G&W 196022 Pk 12/01/05 204,609 I__ __

98642 9/28/05 B&W 185844 Pk 9/28/05 209,771 98647 11/02/05 G &Y 211667 Pk 11/02/05 213,180 117566 01/05/06 ROR 402PK 01/13/06 205411 117573 5/18/05 O& Y _ 211674 Pk 5/18/05 212,173 129407 12/17/05 White _ 206280 12/17/05 222,724 129423 5/18/05 P &Y 211687 Pk 5/18/05 213,539 129440 11/01/05 O&W 210938 Pk 11/01/05 196,636 126198 11/22/05 R&W l_ l_ 196021 11/22/05j 210398 I Diff-rm MW-MT-ob U. D.I Caiu o1y inVc (lOmY o 100)

ATTACW-I1ENT *-t*3

MicroShield v5.05 (5.05-00121)

GPU Nuclear Page :1 File Ref:

DOS File: SOIL.MS5 Date:

Run Date: IMarch 29, 2005 By:

Run Time: 33:38:06 PM Checked:

Duration : ('0:00:03 Case

Title:

Soil

Description:

Soil Density 1.45 glcc, 6" Deep Cylinder @ 4" from Surface Geometry: 8 - Cylinder Volume - End Shields Source Dimensions Height 15.24 cm 6.0 in Radius 28.21 cm 11.1 in Dose Points X Y z

  1. 1 0 cm 27.94 cm 0cm 0.0 in 11.0 in 0.0 in Shields Shield Name Dimension Material Density Source 2325.091 in3 Concrete 1.45 Air Gap Air 0.00122 Source Input Grouping Method: Actual Photon Energies Nuclide curies becquerels uCi/cm3 Bq/cm 3 Ba- 137m 5.2264e-008 1.9338e+003 1.3717e-006 5.0753e-002 Cs-137 5.5247e-008 2.0441e+003 1.4500e-006 5.3650e-002 Buildup The material reference is : Source Integration Parameters Radial 60 Circumferential 60 Y Direction (axial) 60 Results Enermy Activity Fluence Rate Fluence Rate Exposure Rate ExDosure Rate MeV photons/sec MeV/cm 2 /sec MeV/cm 2 /sec mR/hr mR/hr No Buildup With Buildup No BuilduD With Buildup 0.0318 4.003e+01 6.785e-06 8.211 e-06 5.652e-08 6.840e-08 0.0322 7.386e+01 1.305e-05 1.589e-05 1.050e-07 1.278e-07 0.0364 2.688e+01 7.222e-06 9.428e-06 4.103e-08 5.357e-08 0.6616 1.740e+03 5.968e-02 1.023e-01 1.157e-04 1.983e-04 TOTALS: 1.881e+03 5.971 e-02 1.023e-01 1.159e-04 1.986e-04 ATrvtqnr z4M J

Nal Scan MDC Calculation- CV Soil.mcd Nal Scan MDC Calculation b := 200 p :- 0.5 HS d := 56.42 SR:= 25 d := 1.38

-4 Conv := 206 MS output 1-15710 HS d HS d = 2.257 ObservationInterval (seconds)

SR i HS d ObservationInterval (seconds) 1 SR

('bo b-:= 6 60 b ; = 7.523 Counts MDCR i:= Id . i-MDCR ; = 100.629 net counts per minute MDCR; surveyor :=

MDCR surveyor = 142.311 net counts per minute MDCR surveyor MDERC Conv MDER = 0.691 gR/h MDER MDC scan 1 10 MS output 3 MDC scan = 5.971 pci/9 41612005 4 of 5 ATTACHWANT -- -

Nal Scan MDC Calculation- CV Soil.mcd where:

b = backgroundin counts per minute b= backgroundcounts in obsenrazioninterval Conm = Nal manufacturersreportedresponse to energy ofcontaminant (cpm/uR/h) d = index of sensitivity (Table 6.5 MARSSJM), 1.38 = 95% ofcorrect detection's, 60%false positives HSd = hot spot diameter (in centimeters)

MDCsc,,, = Minimum DetectableConcentrationfor scanning (pCoig)

MDCR, = Minimum Detectable Count Rate (ncpm)

MDCRsunoor = MDCR correctedby human performancefactor (ncpm)

MDER = linimum Detectable Exposure Rate (uRlh)

MSO.fpt = MicroShield output exposure ratefor I pCilg ofcontaminant (mRPh)

O = oberrationInterval (seconds) p = humanperformancefactor SR = scan rate in centimetersper second NOTE This is an example of an MDCscan calculation that is valid for a specific set of site conditions, and assumptions. These variables include the computer model used, soil density, soil moisture content, surveyor efficiency, ground cover, soil background radionuclide content and other variables that influence calculated results. However, this scan MDC's has been deemed appropriate for initial survey planning purposes at this site location.

5 of 5 41612005 416t2005 5 of 5 ATTA CSaN 1NT--3-So~

132 113 130 129 *26 127 126 125 124 I23 I22 21 120 119 *18 117 116 775 714

  • 3 112 it, 110 109 106 707 106 I0D I04 03 102 707 100 90 go 97 06 56 94 93 92 pi 90 89 6 ----- -- --l--r

--- I---l--- --- l---I--F--- -[

MA4 MA3 OL6 & OL10 OPEN LAND SURVEY UNITS - SCAN AREAS IN BLUE

\RAYSTOWN BRANCH M.- JUNIATA RIVER +#7j

.O6- ,vv 0 0 a OM06 O8 _ OL 6 OL0O70ABNEDHEASTV~$9 L8 #2 0L80 03, - t.,,F\nt .. ,*i 00 -1OLO 0--

_ #73 o 1 00 0 2 o oo A , I1 M9- _ -6 0 0 + 0 0 0 CUREN_

. h * *g ( XRC~l lEpoNNNGATTACHMENT 5 - 1

Site Report Site Summary Site Name: OLl0 Open Land Areas Planner(s): BHB Contaminant Summary NOTE: Surface soil DCGLw units are pCi/g.

Building surface DCGLw units are dpnml00 cm2.

Screening Contaminant Type DCGLw Value Used? Area (m') Area Factor Cs-1 37 Surface Soil 4.90 No 1 28.7 25 4.7 100 3.6 400 3 2,500 2.3 10,000 1 COMPASS v1.0.0 41812005 Page 1 ATTACHMENT ( 2..

Surface Soil Survey Plan Survey Plan Summary Site: OL10 Open Land Areas Planner(s): BHB Survey Unit Name: OL1 0-1 Comments:

Area (M2): 6,800 Classification: 2 Selected Test: Sign Estimated Sigma (pCi/g): 0.33 DCGL (pCi/g): 4.90 Sample Size (N): 14 LBGR (pCi/g): 4.4 Estimated Conc. (pCi/g): 0.4 Alpha: 0.050 Estimated Power: 1 Beta: 0.100 Prospective Power Curve 0.9 ---

0.8 -

- 0.7 -I

0.6 ----

4 0-

  • 0.5 -~

- 0.4 .

4 0.3 -

60.2 E 0.1 -

0 2 3 4 5 6 Soil Concentration (Cilg), nacluiling background

- Power - DCGL - - Estimated Power

- LBGR a 1-beta COMPASS v1.0.0 418/2005 Page 1 ATTA.!-,SFMNT & 2-CoT

Surface Soil Survey Plan Contaminant Summary DCGLw Inferred Modified DCGLw Scan MDC Contaminant (PCi/g) Contaminant Ratio (pC~Ug) (pCiIg)

Cs-137 4.90 N/A NIA NIA N/A Survey Unit Estimate Reference Area Estimate (Mean +/- 1-Sigma) (Mean I 1-Sigma)

Contaminant (pci9)___ _ (pCig9)

Cs-1 37 0.45 +/- 0.33 0.28 t 0.39 COMPASS v0.0.0 4tt2W05 Page 2 ATTACHMENT-k-- 3

Surface Soil Survey Plan Survey Plan Summary Site: OLIO Open Land Areas Planner(s): BHB Survey Unit Name: OL1 0-2 Comments:

Area (m2): 6,860 Classification: 2 Selected Test: Sign Estimated Sigma (pCi/g): 0.33 DCGL (pCi/g): 4.90 Sample Size (N): 14 LBGR (pCUg): 4.4 Estimated Conc. (pCi/g): 0.4 Alpha: 0.050 Estimated Power: 1 Beta: 0.100 Prospective Power Curve

-I

! 0.9

_ 0.8

- 0.7 ci t 0.6

  • ' 0.5

_ 0.4

. 0.3

_0.2 E 0.1 0

0 1 2 3 4 5 6 Soil Concentainn pCi/g), incluling backgrnuml

- Power - DCGL -- Estimated Power

- LBGR

  • 1-beta COMPASS v1.0.0 418/2005 Page 1 YrrA-,t oi2 W (9r ., yi COG

Surface Soil Survey Plan Contaminant Summary DCGLw Inferred Modified DCGLw Scan MDC Contaminant (pCIlg) Contaminant Ratio (pCI1g) (pCi/g)

Cs-1 37 4.90 N/A N/A NIA N/A Survey Unit Estimate Reference Area Estimate (Mean I -Sigma) (Mean 1-Sigma)

Contaminant (pig) (pCIg)__

Cs-137 0.45 +/- 0.33 0.28 +/- 0.39 COMPASS v1.0.0 418/2005 Page 2 ATTAVrP'Ju? 'KtT 1 . S

Surface Soil Survey Plan Survey Plan Summary Site: OLI0 Open Land Areas Planner(s): BHB Survey Unit Name: OL1 0-3 Comments:

Area (M2): 7,000 Classification: 2 Selected Test: Sign Estimated Sigma (pCi/g): 0.33 DCGL (pCi/g): 4.90 Sample Size (N): 14 LBGR (pCi/g): 4.4 Estimated Conc. (pCi/g): 0.4 Alpha: 0.050 Estimated Power: 1 Beta: 0.100 Prospective Power Curve

-I 5 0.9 N

CA 0.5

_ 0.7

'a i 0.6 0.3

- ;~0.5

r_0.4 U

4 0.3 L 0.2

?E 0.1 0 1 2 3 4 5 6 Soil Ceoceniraen.n (pCilg, including backgxruni

- Power - DCGL - - Estimated Power

- LBGR

  • l-beta COMPASS v1.0.0 4J812005 Page 1 Co0

'REZ-5/ Surface Soil Survey Plan Contaminant Summary DCGLw Inferred Modified DCGLw Scan MDC Contaminant (pCl/g) Contaminant Ratio (pCilg) (pClIg)

Cs-137 4.90 NIA NIA NIA NIA Survey Unit Estimate Reference Area Estimate (Mean +/- 1-Sigma) (Mean +/- 1-Sigma)

Contaminant (pC11g) (pCIlg)

Cs-1 37 0.45 +/- 0.33 0.28 +/- 0.39 V1.D.0 LUMPAbS vi.0.0 41812005 COMPASS 4A812005 Page 2 ATTACHMENT 6 * > .~:

Site Report Site Summary Site Name: OL6 Open Land Area Planner(s): BHB Contaminant Summary NOTE: Surface soil DCGLw units are pCVg.

Building surface DCGLw units are dpm/100 cm2.

Screening Contaminant Type DCGLw _ _

Value Used? Area (m') Area Factor Cs-1 37 Surface Soil 4.90 No 28.7 25 4.7 100 3.6 400 3 2,500 2.3 10,000 1 41812005 Page 1 COMPASS u1.0.0 COMPASS vi.0.0 4U8/2005 Page I ATT^^W;t= 6 . 8

Surface Soil Survey Plan Survey Plan Summary Site: OL6 Open Land Area Planner(s): BHB Survey Unit Name: OL6 Comments: INCLUDES THREE LOCATIONS Area (m 2): 1,775 Classification: 1 Selected Test: Sign Estimated Sigma (pCi/g): 1.7 DCGL (pCi/g): 4.90 Sample Size (N): 16 LBGR (pCi/g): 2.6 Estimated Conc. (pCi/g): 2.6 Alpha: 0.050 Estimated Power: 1 Beta: 0.100 EMC Sample Size (N): 16 Scanning Instrumentation: 2" by 2" Nal (w)

Prospective Power Curve X _ _ _

sj 09 -_ _ _ _ _____

0.8 c _______

-0.7 0.6

  • 0.5

-C _n ___._

4 0.4 _ _

- 0.3 ___

60.2-_ _

D 0.1 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Soil Concextrteix (aCi/g), icliiding backgrsmil

- Power DCGL - Estimated Power

- LBGR Il-beta COMPASS v1.0.0 4J812005 Page 1 ATTACNWENT 6 -

MYSurface Soil Survey Plan Contaminant Summary DCGLw Inferred Modified DCGLw Scan MDC Contaminant (pCi/n) Contaminant Ratio (pCIg) (pCi/g)

Cs-1 37 4.90 N/A N/A N/A 5.971 Survey Unit Estimate Reference Area Estimate (Mean t I-Sigma) (Mean +/- I-Sigma)

Contaminant (pCIlg) (pC11g)

Cs-I 37 2.6 +/- 1.7 0.28 +/- 0.39 COMPASS v1.0.0 418/2005 Page 2 ATTAC09MENTL

If! XI U,

  • x  :;  :: f 101 xi ison (EMC)

Q_ No additional sample, e reqwed because the actual scan MDC iless than the requoed scan MDC. ing instrumentation used.Then enterascan MDCforeach ALCULATE buttontoviewthe integrated survey design scan MDCand DCGL unts are in pCig.

Scanning Instrumentation

Description:

12" by 2' Nal (w)

-Enter Scan MDC Contaminant. -,. Il Scan MDC: l: -I Cs-1 37 5.971 l CALcuJLATE:. I Statistical Design-. Hot Spot Design N: l 16 Actual Scan MDC: 5.971 BoundedArea(m5: l 110.9. AreaFactor l NJA AreaFactor. l 3.58 . .BoundedArea(m): NIA I DCGLw. l 4.90 -.Post-EMC N: l 16 Scan MDC Required: 17.5 I .;

- rw Enable Training Card Help

. i .. i .

vi .0.0 8AK NEXI ATTACHMEiNT 6 /

132 131 130 120 128 127 126 12$ 124 123 122 121 120 11 1 a 1t7 '18 115 114 113 112 I 11 109 108 107 106 06 104 103 IT7-A--OL P LA SURVEY UNITS-----------

F ', 1-~MA4 n .

+

r- MA3

~RAYSTOWN BRANCH OL6 & OL IO OPEN LAND SURVEY UNITS t

BR _ \ X BR B0 __- JUNIATA RIVER o +#74t\\_ 0 0 7\

BP _OOO- 2

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  1. 73 r7 3H 811t _

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132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 BT BS FI i I IV BR

, -MA4 0M & OL0O OPEN LAN OL6 RAYSTOWN BRANCH BO __ - i mJUNIATA RIVER e OW 4P-BP -

BO -

BN_

BM_

4 +15 +1 BL_

OL1O-2 BK_

BJ_

I (10 11 #192

,t 19 m BI BH -

BG_

BF BE _

ATTACHMENT 7 -Z

TTACHMENT -.3 104 103 102 101 100 99 98 97 96 95 94 93 92 91

,ND SURVEY UNITS ATTACKMENT e *__

CI Z

125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 BT BS T -e

_ _ _ I I I BR OL6 OPEN LA fVD SURVEY UNIT RAYSTOWN BRANCH ow-A BQ JUNIATA RIVER OW-4R-0 W4

-- CONCRETE BP -

BO _

BN_

Bm _tOL6 11 1! 13 .

BL 8_1 9+ 1/

  1. 54 BK _ '+ t't 6 $7 #70 0
  • I ABANDONED AIR SAMPLING BJ

_ 2Q(9 3)+ 4 STATION t 2 3 #92 By l l ....... ::::::::: lll: .........  : Al_

I r t%,

OL10-1 SURVEY UNIT OL-6 SURVEY UNIT KEY GRID COORDINATES (in Metersi KEY GRID COORDINATES (in Meters)

Location Grid No. (X,. Y) Location Grid No. (X, Y)

No.1 BE- 24 3 7 No. I BI-125 3 4 No. 6 BI-130 0 4 No.2 BJ-125 9 3 No.4 BG-125 2 6 No. 3 BJ-124 9 3 No. 4 BJ-123 9 3 OL10-2 SURVEY UNIT No. 5 BK-125 3 2 KEY GRID COORDINATES (in Meters) No. 6 BK-124 4 2 Location Grid No. (X, Y)- No.7 BK-123 4 2 No.1 BA-117 3 5 No.8 BL-125 9 1 No.2 BE-117 3 3 No. 9 BL-124 9 1 No. 3 BE-115 5 3 No.10 BL-123 9 1 No.4 BE-113 7 3 No.11 BL-125 3 9 No. 5 BG-112 8 2 No.12 BL-124 4 9 No.6 BI-117 3 1 No.13 BL-123 4 9 No.10 BK-116 4 1 No.14 BN-114 5 7 No. 15 BN-113 5 7 OL10-3 SURVEY UNIT No.16 BN-112 5 7 KEY GRID COORDINATES in Meters) No.17 BO-114 10 5 Location Grid No.' (X, Y) No.18 BO-112 0 5 No. 1 BK-107 2 5 No.19 BM-106 1 8 No. 2 BK-105 3 5 No. 20 BN-106 6 7 No. 6 BM-108 1 3 No.15 BR-95 9 8 No.16 BR-92 0 8 No. 17 BP-91 1 10 No.18 BM-91 1 3 AA4 k,* fcWT, -q - G

se- Ieassalr7 Sample C-. nL10 G PCLl Sa Ng*

No. Gnts in OLo C SXSL6699 BK-103, SPI 014 SXSL6725 BK-124, API 43 SXSi6700 BK-103, SP2 013 SXSL6726 BK-124 AP2 2.5 SXSL6701 BL-103, SPI 015 SXSL6727 BJ-124, API 42 SXSL6702 BL-103SP2 0.14 SXSL6728 BJ-124. AP2 28 SXSL6703 BM-103. SPI 0.18 SXSL6821 BJ15I API 2 SXSL6704 BM-103. SP2 O0. SXSL6822 OJ-125. AP2 29 SXSL67O5 BK-104, SPI 017 SXSL6823 8.-125, AP3 2 SXSL6706 BK-104, SP2 014 SXSL6024 BK-125. SPI 1.7 SXSL6707 BL-104, SPI 013 SXSL6825 BK-t25, SP2 14 SXSL6706 BL-104 ,SP2 013 SXSL6826 8L-125s SPI 2.9 SXSL6709 BM-104 SPI 0.12 SXSL6027 BL-125 SP2 29 SXSL67tO IM-104 SP2 0.1 SXSL6832 BK-125, SPI 17 SXSL6711 _L 013 SXSL6833 BL4124 AP1 28 SXSL6722 BJ-110, SPI 0.1 SXSL6834 BL-124, SP2 23 SXSL673 BJ-110,SP2 012 SXSL6840 BJ-123 SPI 0 65 SXSL671 BK-105 SPI 025 SXSL6841 BJ-123. SP2 05 SXSL6772 BK-05, SP2 0.14 SXSL6042 B5-123, SP2 0.46 SXSL6773 BL-105, SP1 009 SXSL6843 BK-123, SPI 2 SXSL6774 B-t105, SP2 0.14 SXSL6844 BK-123, SP2 1.9 SXSL677S BK-16, SPI 0o18 SXSL6845 BL-123, SPt 01O SXS16T76 BK-16. SP2 0.08 SXSL6846 BL-123, SP2 08 SXSL6777 BL-106 SPI 0.1 SXSL7354 B-125, AP1 33 SXSL6778 8-106, SP2 0.18 SXSL7355 8B-125,API 4 8 SXSL6779 BK-107. SP1 0.17 SXSL7356 BU25, AP2 33 SXS16780 BK-107, SP2 048 SXSL7357 81-25, AP3 1.2 SXSL697S BG-1 12, API 027 SXSL7358 8125, AP4 4 5 SXSL6976 8G-1 12 AP2 056 SXSL737O 8-125. API 47 SXSL7M)9 BF-112. SP1 08 SXSL7371 8125, AP2 18 SXSL70O1 BF-112, SP2 046 SXSL73372 B-2

- AP3 83 SXSL701 BE-112, SPI 06 SXSL7373 BU25, AP4 3 SXSL7012 BE-12

- SP2 066 o.- 2-6 SXSL7013 BE-113 SPI 093 S7DEV- 1.7 SXSL7014 BE-113 SP2 06 SXSL7017 SE-1A sPi 06 SXSL7018 BE-114 .SP2 07 SXSL7023 8B-117 SPI 09 SXSL7024 8B-117 SP2 02o SXSL70-3 BC-117?SPI 056 SXSL7037 BC-1 t SP2 063 SXSL72tO B8-117, API 0.13 SXSL7230 BCl12, LA2 03 SXSL7375 BB-17. SPI 0 88 SXSL6540 BK-119-1 025 SXSL6566 BK-114-1 0 28 SXSL6578 IBJ-114-1 03 SXSL6M1 s1- 14-1 028 SXSL6S54 BU-1s-1 03 SXSL6587 BJ-115-1 0 24 SXSL6607 B1-16-1 0.16 SXSL6610 BU-17-1 016 SXSL6613 BS-117- 06 SXSL6616 BH-118-1 05 SXSL6619 B5-116-1 0.12 SXSL6625 BK-117-1 025 SXSL6628 81-117-1 03 SXSL6666 BK-118-1 013 SXSL6669 BJ-119-1 04 SXSL66S8 S-1 19-1 055 SXSL6691 B1-119-i 0 16 SXSL68M8 8M-125 SPI 0.7 SXSL6M2S BM-125. SP2 0.5 SXSL6835 BM-124 SPI 06 SXSL6836 BM-W24.SP2 I SXSL6837 BM-124, SP2 09 SXSL6919 BK-122, SPI 08 SXSL6920 BK-122, SP2 1 SXSL5921 BL-122, SPI 05 SXSL6M22 BL-122. SP2 05 SXSL6923 BL-121, SPI 066 SXSL6924 BL-121 SP2 06 SXSL6925 BM-121, SPI 1 SXSL6926 BM-121t SP2 095 SXSL6s6S BM-123, SP2 07 SXSL5969 BM-t22 SPI 1.2 SXSL7262 I8J-126 SPI 08 SXSL7263 BJ-126, SP2 1.2 SXSL7264 BK-126, SPI 1 SXSL7265 BK-126, SP2 039 SXSL279 BE-123, SP1 06 SXSL72aO BE-123. SP2 1.1 SXSL1'279 BF-123, SP1 12 SXSL7298 BF-123, SP2 0.2 UeW,-" 0.45 S7DEV.> oM3 ArACHIAEN

Exhibit 1 Survey Unit Inspection Check Sheet ORIGINAL SECTION 1 - SURVEY UNIT INSPECTION DESCRIPTION Survey Unit # OL6 Survey Unit Location Northeast Quad. of Grid Map Date 115/05 Time 1145 Inspection Team Members K. Lane SECTION 2 - SURVEY UNIT INSPECTION SCOPE Inspection Requirements (Check the appropriate Yes/No answer.) Yes No N/A

1. Have sufficient surveys (i.e., post remediation, characterization, etc.) been obtained for the survey unit? X
2. Do the surveys (from Question 1) demonstrate that the survey unit will most likely pass the FSS? X
3. Is the physical work (i.e.. remediation & housekeeping) in or around the survey unit complete? X
4. Have all tools, non-permanent equipment, and material not needed to perform the FSS been removed? X
5. Are the survey surfaces relatively free of loose debris (i.e., dirt, concrete dust, metal filings, etc.)? X
6. Are the survey surfaces relatively free of liquids (i.e.. water, moisture, oil, etc.)? X
7. Are the survey surfaces free of all paint, which has the potential to shield radiation? X
8. Have the Surface Measurement Test Areas (SMTA) been established? (Refer to Exhibit 2 for instructions.) X
9. Have the Surface Measurement Test Areas (SMTA) data been collected? (Refer to Exhibit 2 for instructions.) X
10. Are the survey surfaces easily accessible? (No scaffolding, high reach, etc. is needed to perform the FSS) X
11. Is lighting adequate to perform the FSS? X
12. Is the area industrially safe to perform the FSS? (Evaluate potential fall & trip hazards, confined spaces, etc.) X
13. Have photographs been taken showing the overall condition of the area? X
14. Have all unsatisfactory conditions been resolved? X NOTE: If a 'No' answer is obtained above, the inspector should immediately correct the problem or initiate corrective actions through the responsible she department, as applicable. Document actions taken and/or justifications in the 'Comrnents' section below. Attach additional sheets as necessary.

Comments:

Response to Question 3,4,5 BI-125 contains sawhorse barrier. BN-112 has many rock piles from excavation.

Response to Question 12 BM-106 has roped off small hole approximately 3' x 3'.

Survey Unit Inspector (print/sign) Kevin Lane /

11 ---

Survey Designer (print/sign) I . b) H3R0SE' E 9?a -o5-- 6z7

Exhibit I Survey Unit Inspection Check Sheet ORIGINAL SECTION 1 - SURVEY UNIT INSPECTION DESCRIPTION Survey Unit # l OL 0 Survey Unit Location Northeast Quad. of Grid Map Date 4/15/05 l Time I 1100 Inspection Team Members K. Lane SECTION 2 - SURVEY UNIT INSPECTION SCOPE Inspection Requirements (Check the appropriate Yes/No answer.) Yes No N/A

1. Have sufficient surveys (i.e., post remediation, characterization, etc.) been obtained for the survey unit? X
2. Do the surveys (from Question 1) demonstrate that the survey unit will most likely pass the FSS? X 3 Is the physical wordg (i e . remediation & housekeeping) in or around the survey unit complete? X
4. Have all tools, non-permanent equipment, and material not needed to perform the FSS been removed? X
5. Are the survey surfaces relatively free of loose debris (i.e.. dirt, concrete dust, metal filings, etc.)? X
6. Are the survey surfaces relatively free of liquids (i.e., water, moisture, oil, etc.)? X
7. Are the survey surfaces free of all paint, which has the potential to shield radiation? X
8. Have the Surface Measurement Test Areas (SMTA) been established? (Refer to Exhibit 2 for instructions.) X
9. Have the Surface Measurement Test Areas (SMTA) data been collected? (Refer to Exhibit 2 for instructions.) X
10. Are the survey surfaces easily accessible? (No scaffolding, high reach, etc. is needed to perform the FSS) X
11. Is lighting adequate to perform the FSS? X
12. Is the area industrially safe to perform the FSS? (Evaluate potential fall & trip hazards, confined spaces, etc.) X
13. Have photographs been taken showing the overall condition of the area? X
14. Have all unsatisfactory conditions been resolved? X NOTE: If a 'No' answer is obtained above, the inspector should immediately correct the problem or initiate corrective actions through the responsible site department, as applicable. Document actions taken and/or justifications in the 'Comments' section below. Attach additional sheets as necessary.

Comments:

Response to Question 3,4,5 Grass getting high on french drain mound. BN-126 contains fallen trees. BO-116 contains 40%

multifloral rose jagger bushes on steep bank. BM-115 contains concrete block approx. 30" x 30". BP-111 and BO-1 11 wash out to river trip hazard. BO-1 09 (2) concrete REMP well heads approx. 2' x 2'. BN-91 contains stumps and fallen trees. BK-110 to 105 contains silt, fence and straw bales. BI-112 abandoned air sampling station concrete pad.

Response to Question 10 Majority of grids along riverbank are steep and unsafe to survey.

Response to Question 12 Survey unit has many tripping hazards such as fallen tree limbs and rough terrain.

Survey Unit Inspector (print/sign) Kevin Lane I/ Date 4115105 Survey Designer (print/sign) I ,. Ijg b / ., k Date C-.

A/Ja-Is OD- 65 q- a?

SURVEY REQUEST CONTINUATION SHEET SR NUMBER l 0216 l AREA/LOCATION OL6 SPECIFIC SAMPLING/SURVEY INSTRUCTIONS OR COMMENTS RESULTS

SUMMARY

FOR SR-0216 SR-0216 was issued to obtain radiological survey and sampling data to ensure Final Site Survey activities are complete. The survey unit covered under this SR is 0L6 (grids are listed in the SR). The SR required the following radiological measurements.

  • Surface scan measurements using a 2" x 2" Nal detector (set to identify Cs-137). Survey techniques will be lAW the SR.
  • A total of 20 Site Surface Dose Model Samples (SSDM) were provided to be taken for analysis. SNEC Calculation Sheet using 'COMPASS' program required 16 samples to be taken.
  • Site Surface Dose Model Samples (Auger Method). Obtain samples as directed in the SR. Using the auger, obtain a sample 1 meter in depth.
  • QC Repeat Measurements: A minimum of 5% of all surface scan measurements and sampling were re-performed using identical methodology. SSDM sampling was performed by taking a second sample from the same drill hole.
  • QC Repeat Analysis: A minimum of 1 sample per SR or 5%, whichever is greater, of all SSDM samples were analyzed using identical methodology.
  • Additional sampling/surveys were performed at the request of the SR coordinator.
1. Summary of Results A. Surface Scan Measurements (2" x 2" Nal Detector)

A 100% surface scan was required of all accessible areas of certain grids, lAW the SR. A total of 100.99%

of this Class 1 area was surveyed, which is well within design basis. (See Exceptions and Discrepancies, #4)

Results: With the exception of one location in grid 61--125, no areas indicated activity above the action level of > 350 GCPM (gross counts per minute).

B. Surface Static Measurements A static measurement was obtained in B1-125 at alarm point (AP) 1.

Results: AP-1: 529 gcpm.

Page 1 of 3 5/31/2005

SURVEY REQUEST CONTINUATION SHEET SRNUMBER l 0216 l AREA/LOCATIONl OL6 SPECIFIC SAMPLING/SURVEY INSTRUCTIONS OR COMMENTS C. Site Surface Dose Model Sampling Twenty (20) SSDM samples were obtained. Two (2) SSDM QC samples were taken. These samples were statistically spaced based on a random starting point due to the lack of noticeable elevated activity during final post remediation scan/static surveys.

Results: Twelve (12) SSDM samples taken for this SR did not contain Cs-137. MDA activity range is from 0.06 pCig to 0.18 pCilg (forthe surrogate isotope, Cs-137). Forthe eight (8) samples, not including QC samples that did contain Cs-137, activities were 0.22 pCi/g to 0.81 pCi/g. No other licensed isotopes identified for this particular SR.

2. Quality Control (QC) Measurements and Comparisons
  • Repeat Scan measurements and SSDM samples were performed and met the applicable acceptance criteria established in Section 4.6 of E900-IMP-4520.04. QC scan measurements were repeated for 6.69% of the area scanned. SSDM sample QC measurements were repeated for 10.00% of SSDM samples.
3. Quality Control Sample Recounts
  • Repeat QC replicate recount - SNEC has determined that, at a minimum, one SSDM sample, or five per cent (5%) of SSDM samples from each SR will have replicate gamma spectroscopy counts performed on them. In the case of this SR, 2 SSDM samples had replicate counts performed; samples
  1. 1-23954 and sample #1-23974, satisfying this requirement.
4. Exceptions and DiscrepanciestS
  • The total area scanned of 100.99% value is due to a variance in estimated area taken from the Survey Design used in writing the SR, versus land area actually measured during survey of the area.
  • When the actual land area surveyed value is used and the obstructions due to trees and the Juniata River is taken into account the actual percentage of land scan surveyed is 99.58% which equates to 100% of accessible areas.

Page 2 of 3 5/31t2005

SURVEY REQUEST CONTINUATION SHEET SR NUMBER l 0216 l AREA/LOCATIONl OL6 SPECIFIC SAMPLING/SURVEY INSTRUCTIONS OR COMMENTS

5. Special Note(s)
  • As stated previously, as this is a Class 1 area, scan coverage of approximately 100% will suffice to show due diligence in survey technique for release of the site for unrestricted use.
  • QC Static measurement taken at AP-1 was 623 gcpm.
  • One (1) SSDM sample was taken at the AP. Three (3) additional samples were taken to bound the AP to ensure no activity migration has occurred. All samples were taken in grid BI-125.
  • Cs-1 37 activity found in soil at the AP was 1.53 pCig.
  • One (1) bounding sample showed activity greater than MDA at 0.26 pCi/g.
  • MDA for samples taken for AP resolution ranged from 0.05 to 0.12 pCilg.
  • A replicate sample for sample #1-23887 was performed.

g yW 57. 6 Print/Signature Date Page 3 of 3 5/3 1/2005

SURVEY REQUEST CONTINUATION SHEET SR NUMBER l 0217 l AREA/LOCATION l OL10-1 SPECIFIC SAMPLING/SURVEY INSTRUCTIONS OR COMMENTS RESULTS

SUMMARY

FOR SR-0217 SR-0217 was issued to obtain radiological survey and sampling data to ensure Final Site Survey activities are complete. The survey unit covered under this SR is OL10-1 (grids are listed in the SR). The SR required the following radiological measurements.

  • Surface scan measurements using a 2 x 2" Nal detector (set to identify Cs-137). Survey techniques will be JAW the SR.
  • A total of 18 Site Surface Dose Model sample (SSDM) points were provided to be taken for analysis.

SNEC Calculation Sheet using 'COMPASS" program required 14 samples to be taken.

  • Site Surface Dose Model Samples (Auger Method). Obtain samples as directed in the SR. Using the auger, obtain a sample 1 meter in depth.
  • QC Repeat Measurements: A minimum of 5% of all surface scan measurements and sampling were re-performed using identical methodology. SSDM sampling was performed by taking a second sample from the same drill hole.
  • QC Repeat Analysis: A minimum of 1 sample per SR or 5%, whichever is greater, of all SSDM samples were analyzed using identical methodology.
  • Additional sampling/surveys were performed at the request of the SR coordinator.
1. Summary of Results A. Surface Scan Measurements (2" x 2" Nal Detector)

A 100% surface scan was required of all accessible areas of certain grids, lAW the SR. A total of 55.45%

of this Class 2 area was surveyed, which is well within design basis.

Results: With the exception of one location in grid BH-125, no areas indicated activity above the action level of > 350 GCPM (gross counts per minute).

B. Surface Static Measurements A static measurement was obtained in BH-125 at alarm point (AP) 1.

Results: AP-1: 498 gcpm.

Page I of 3 5/31/2005

-- ISURVEY REQUEST CONTINUATION SHEET SR NUMBER 0217 AREA/LOCATION I OL10-1 I SPECIFIC SAMPLING/SURVEY INSTRUCTIONS OR COMMENTS I C. Site Surface Dose Model Sampling Eighteen (18) SSDM samples were obtained. Two (2) SSDM QC samples were taken. These samples were statistically spaced based on a random starting point due to the lack of noticeable elevated activity during final post remediation scan/static surveys.

Results: Nine (9) SSDM samples taken for this SR did not contain Cs-137. MDA activity range is from 0.06 pCi/g to 0.15 pCVg (for the surrogate isotope, Cs-137). For the nine (9)samples, not including C samples that did contain Cs-137, activities were 0.09 pCVg to 0.50 pCi/g. No other licensed isotopes identified for this particular SR.

2. Quality Control (QC) Measurements and Comparisons
  • Repeat Scan measurements and SSDM samples were performed and met the applicable acceptance criteria established in Section 4.6 of E900-IMP-4520.04. QC scan measurements were repeated for 5.83% of the area scanned. SSDM sample QC measurements were repeated for 11.11% of SSDM samples.
3. Quality Control Sample Recounts
  • Repeat CC replicate recount - SNEC has determined that, at a minimum, one SSDM sample, or five per cent (5%) of SSDM samples from each SR will have replicate gamma spectroscopy counts performed on them. In the case of this SR, 2 SSDM samples had replicate counts performed; samples,
  1. 1-23994 and sample #2-23996, satisfying this requirement.
4. Exceptions and Discrepancies
  • The grids requiring 100%/ scan that were not scanned to this standard had obstacles such as power poles and trees located within the grid areas. This equates to 100% of the accessible grid area being surveyed.
  • Grid BG-124 was changed to grid BG-125 on SR by the SR Coordinator.
  • Sample Points (SP) 6 & 7 taken at a depth of 6' due to being north of the Penelec electric substation.

Page 2 of 3 611/2005 Page 3 of 3 sqnlnnnv

SURVEY REQUEST CONTINUATION SHEET SRNUMBER 0217 AREAILOCATION OL10-1 SPECIFIC SAMPLING/SURVEY INSTRUCTIONS OR COMMENTS

5. Special Note(s)
  • As stated previously, as this is a Class 2 area, scan coverage of approximately 30-50% will suffice to show due diligence in survey technique for release of the site for unrestricted use.
  • QC Static measurement taken at AP-1 was 468 gcpm.
  • One (1) SSDM sample was taken at the AP. Three (3) additional samples were taken to bound the AP to ensure no activity migration has occurred. All samples were taken in grid BH-1125.
  • Cs-1 37 activity found in soil at the AP was 3.13 pCi/g.
  • One (2) bounding samples showed activity greater than MDA at 0.10 pCi/g and 1.11 pCilg.
  • MDA for samples taken for AP resolution ranged from 0.06 to 0.12 pCilg.
  • A replicate sample for sample #1-23882 was performed.

Print/Signature Date Page 3 of 3 5/31/2005

SURVEY REQUEST CONTINUATION SHEET SR NUMBER 0218 AREAILOCATION OL10-2 SPECIFIC SAMPLING/SURVEY INSTRUCTIONS OR COMMENTS RESULTS

SUMMARY

FOR SR-0218 SR-0218 was issued to obtain radiological survey and sampling data to ensure Final Site Survey activities are complete. The survey unit covered under this SR is OL10-2 (grids are listed in the SR). The SR required the following radiological measurements.

  • Surface scan measurements using a 2" x 2" Nal detector (set to identify Cs-1 37). Survey techniques will be IAW the SR.
  • A total of 19 Site Surface Dose Model (SSDM) sample points were provided to be taken for analysis.

SNEC Calculation Sheet using OCOMPASS" program required 14 samples to be taken.

  • Site Surface Dose Model Samples (Auger Method). Obtain samples as directed in the SR. Using the auger, obtain a sample 1 meter in depth.
  • Site Surface Dose Model Samples (Track Hoe Method). In areas where the auger does not penetrate the ground, obtain samples in areas as directed by the SR.
  • QC Repeat Measurements: A minimum of 5% of all surface scan measurements and sampling were re-performed using identical methodology. SSDM sampling was performed by taking a double size batch of soil and dividing it into 2 separate samples.
  • QC Repeat Analysis: A minimum of 1 sample per SR of all SSDM samples were analyzed using identical methodology.
  • Additional sampling/surveys were not performed.
1. Summary of Results A. Surface Scan Measurements (2" x 2" Nal Detector)

A 100% surface scan was required of all accessible areas of certain grids, IAW the SR. A total of 54.11%

of this Class 2 area was surveyed, which is well within design basis. (See section #4)

Results: No areas indicated activity above the action level of >350 GCPM (gross counts per minute).

B. Surface Static Measurements No static measurements were obtained.

Results: Not Applicable.

Page 1 of 3 6/16/2005

I SURVEY REQUEST CONTINUATION SHEET I SR NUMBER 0218 AREA/LOCATIONl OLIO-2 SPECIFIC SAMPLINGISURVEY INSTRUCTIONS OR COMMENTS C. Site Surface Dose Model Sampling Twenty five (25) SSDM samples were obtained. Two (2) SSDM QC samples were taken. These samples were statistically spaced based on a random starting point due to the lack of noticeable elevated activity during final post remediation scan/static surveys. (See Section 5)

Results: Sixteen (16) SSDM samples taken for this SR were less than MDA. MDA activity range is from 0.05 pCi/g to 0.17 pCilg (forthe surrogate isotope, Cs-137). Forthe nine (9) samples, not including QC samples, that did contain Cs-1 37 greater than the sample MDA, activities ranged from 0.10 pCi/g to 0.37 pCilg. No other licensed isotopes identified for this particular SR.

2. Quality Control (QC) Measurements and Comparisons
  • Repeat Scan measurements and SSDM samples were performed and met the applicable acceptance criteria established in Section 4.6 of E900-IMP-4520.04. QC scan measurements were repeated for 5.39% of the area scanned. SSDM sample QC measurements were repeated for 8.00% of SSDM samples.
3. Quality Control Sample Recounts
  • Repeat QC replicate recount - SNEC has determined that, at a minimum, one SSDM sample from each SR will have replicate gamma spectroscopy counts performed on them. In the case of this SR, 2 SSDM samples had a replicate count performed; sample #2-24034 and #2-24114, satisfying this requirement. In addition, monthly, approximately five per cent (5%) of all samples counted on the gamma spectroscopy system or Tri-Carb system, lAW SNEC Procedure E900-QAP-4220.02, are required to be counted for replicate analysis. (e.g. FSS soil samples) E900-4MP-4520.04 requires 5%

replicate recounts.

4. Exceptions and Discrepancies
  • A total of 3,800 m2 was designed for complete scanning. Due to trees, gullies, rocks, poles and steep slopes 3,711.94 m2 was actually scanned. See individual surveys for more detailed information.
  • SSDM sample points (SP) 12B, SP-16B, and SP18B, depths were 1 meter to 2 meters.

Page 2 of 3 6116/2005

SURVEY REQUEST CONTINUATION SHEET SR NUMBER l 0218 lAREA/LOCATION I OL10-2 SPECIFIC SAMPLING/SURVEY INSTRUCTIONS OR COMMENTS

5. Special Note(s)
  • As stated previously, as this is a Class 2 area, scan coverage of approximately 10%-50% will suffice to show due diligence in survey technique for release of the site for unrestricted use.
  • The Track-Hoe was needed for the above sample points due to overlying debris that prevented access to the site base soil. As all calculations for the release of the site for unrestricted use are based on the amounts of radioactivity present in the base soil, the debris needed to be removed for correct sampling methodology.

C/419 I 1W4/X1/,15 Print/Signature

/5%! Date Page 3 of 3 6f16/2005

SURVEY REQUEST CONTINUATION SHEET SR NUMBER l 0219 l AREAILOCATION I OLIO-3 SPECIFIC SAMPLING/SURVEY INSTRUCTIONS OR COMMENTS RESULTS

SUMMARY

FOR SR-0219 SR-0219 was issued to obtain radiological survey and sampling data to ensure Final Site Survey activities are complete. The survey unit covered under this SR is OL10-3 (grids are listed in the SR). The SR required the following radiological measurements.

  • Surface scan measurements using a 2" x 2" Nal detector (set to identify Cs-137). Survey techniques will be 1AW the SR.
  • A total of 18 Site Surface Dose Model (SSDM) sample points were provided for samples to be taken for analysis. SNEC Calculation Sheet using "COMPASS" program required 14 samples to be taken.
  • Site Surface Dose Model Samples (Auger Method). Obtain samples as directed in the SR. Using the auger, obtain a sample 1 meter in depth.
  • QC Repeat Measurements: A minimum of 5% of all surface scan measurements and sampling were re-performed using identical methodology. SSDM sampling was performed by taking a second sample from the same drill hole.
  • QC Repeat Analysis: A minimum of I sample per SR or 5%, whichever is greater, of all SSDM samples were analyzed using identical methodology.
  • Additional sampling/surveys were not performed.
1. Summary of Results A. Surface Scan Measurements (2" x 2" Nal Detector)

A 100% surface scan was required of all accessible areas of certain grids, lAW the SR. A total of 45.41%

of this Class 2 area was surveyed, which is well within design basis.

Results: No areas indicated activity above the action level of >350 GCPM (gross counts per minute).

B. Surface Static Measurements No static measurements were obtained.

Results: Not Applicable.

Page l of 3 6116/2005

SURVEY REQUEST CONTINUATION SHEET SR NUMBER - 0219 l AREAILOCATION l OL1O-3 SPECIFIC SAMPLING/SURVEY INSTRUCTIONS OR COMMENTS C. Site Surface Dose Model Sampling Fifteen (15) SSDM samples were obtained. Two (2) SSDM QC samples were taken. These samples were statistically spaced based on a random starting point due to the lack of noticeable elevated activity during final post remediation scan/static surveys.

Results: Fourteen (14) SSDM samples taken for this SR were less than MDA. MDA activity range is from 0.04 pCig to 0.17 pCilg (for the surrogate isotope, Cs-137). For the one (1)sample, not including QC samples, that did contain Cs-1 37 activity greater than the sample MDA, activity was 0.15 pCilg. No other licensed isotopes identified for this particular SR.

2. Quality Control (QC) Measurements and Comparisons
  • Repeat Scan measurements and SSDM samples were performed and met the applicable acceptance criteria established in Section 4.6 of E900-IMP-4520.04. QC scan measurements were repeated for 6.29% of the area scanned. SSDM sample QC measurements were repeated for 13.33% of SSDM samples.
3. Quality Control Sample Recounts
  • Repeat QC replicate recount - SNEC has determined that, at a minimum, one SSDM sample, or five per cent (5%) of SSDM samples from each SR will have replicate gamma spectroscopy counts performed on them. In the case of this SR, 1 SSDM sample had a replicate count performed; sample
  1. 5-24014, satisfying this requirement.
4. Exceptions and Discrepancies I*
  • Trees and the bank of the Raystown Branch of the Juniata River precluded 100% survey of the grids listed in the SR. See individual surveys for area not surveyed in each grid.
  • Six (6)grids were deleted by the SR Coordinator due to being underwater/river bank too steep; with the Design Engineer's concurrence.
  • Survey Design package calls for a minimum of 35 grids to be scanned in the area covered by this SR.

By deleting 6 grids a total of 34 grids were scanned. (see Section 5 for details)

  • SP-14, SP-15, SP-16 were deleted by the design engineer due to either being in the river or being on too steep a slope for safe sampling.
  • SP-3 depth of penetration halted at 0.5 meters due to rock formations.

Page 2 of 3 6/16!2005

SURVEY REQUEST CONTINUATION SHEET SR NUMBER l 0219 l AREA/LOCATIONl OL10-3 SPECIFIC SAMPLING/SURVEY INSTRUCTIONS OR COMMENTS

5. Special Note(s)
  • As stated previously, as this is a Class 2 area, scan coverage of approximately 10%-50% will suffice to show due diligence in survey technique for release of the site for unrestricted use.
  • Per discussion with the unit Design Engineer at approximately 1030 EDT on 612/05, the number of grids designed by the program was intended to provide 50% coverage of the area. As the areas surveyed provided sufficient scanned area for this Class 2 area release no further action is required for documentation purposes.

A, /41[V, I-Print/Signature Date Page 3 of 3 6116/2005

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