ML043500258
| ML043500258 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 12/07/2004 |
| From: | Donna Anderson, Broutigom T, Pillsbury G Maine Yankee Atomic Power Co |
| To: | NRC/FSME |
| References | |
| FA-0100-03, Rev 0 | |
| Download: ML043500258 (28) | |
Text
MAINE YANKEE FINAL STATUS SURVEY RELEASE RECORD FA-0100 CONTAINMENT BUILDING SURVEY UNIT 3 Prepared By: __ _ _ _ Date: ?7-30--o JYSS Engineer -Xinature Printed Same Reviewed By: Date: t- I - oa F, Specialist - Signature Printed Name Reviewed By: A. {9ftd Date: it /;/ao Indcpendent Review - Signature Approved By: ¢ X Date: 11,.3e si le perintend f gnature Printed Name Approved By: W ig eDate:
SS, OP - Signature Printed Name Revision 0
MAINE YANKEE FINAL STATUS SURVEY RELEASE RECORD FA-0100 CONTAINMENT BUILDING SURVEY UNIT 3 A. SURVEY UNIT DESCRIPTION Survey Unit 3 is located in Survey Area FA 0100, the Containment Building interior. The Containment Building is located in the restricted area between the Fuel Building and the Spray Building centered at site coordinates 407,575 N and 623,810 E. The Containment Building is shown in relation to other major site structures in map FA 0100. All maps referenced in this release record are provided in Attachment 1, unless otherwise noted.
Survey Unit 3 consisted of the surfaces of the Containment Building equipment pedestals (bare steel liner) and the sump located on the -4 foot elevation. The physical configuration of Survey Unit 3 in relation to the remaining survey units in the Containment Building is provided in map FA 01 00-UNITS (Attachment 1).
The survey unit has a surface area of approximately 291.2 in2 .
B. SURVEY UNIT DESIGN INFORMATION The survey unit was known to have been contaminated to levels in excess of the release limits and required an extensive remediation effort prior to FSS. Given the high probability of residual contamination, the area was designated a Class I survey unit per the LTP.
The survey unit design parameters are shown in Table 1. Given a relative shift of 1.3, it was determined that 21 direct measurements were required for the Sign Test. Each sample location was determined using a fixed square grid with a random start point. These locations are presented on survey map FA 0100-U3-DIRECTS (Attachment 1). Once the direct readings were completed, removable contamination samples were obtained at each measurement location.
A 100% scan coverage of the area was required. The survey was designed to include 179 scan grids of approximately 2 m2 area each. Instrument scan setpoints were conservatively set below the DCGLENIc, as shown in Table 2-2 (Attachment 2). The location of the scan grids is shown on maps FA 0100-U3-PI through P3, FA 0100-U3-Sl through S3, and FA 0100-U3-SUMP (Attachment 1).
To accommodate measurement geometry requirements for surfaces of non-uniform smoothness, the SHP-360 and 43-68 probes were used to augment the scan survey. First, a 43-37 scan was performed on all surfaces, including those unlikely to meet geometry requirements for that model of probe. Then a repeat scan, using the SHP-360, was performed on areas with surface irregularities that required a smaller probe size. Ninety-degree surface junctures (i.e., wall-floor junctures) were scanned using the 43-68 probe with a reduced efficiency.
Background values were established for each particular instrument probe application based on ambient background values in the survey area. No material backgrounds were included because of the minor background contribution from bare steel. The background values, listed in Table 1, were used to establish net activity for direct measurements, scan investigation levels, and to confirm the scan MDCs used were appropriate.
FA-0100-03, Revision 0 Page 2 of 28
The instruments used in this survey unit are listed by model and serial number in Attachment 2 (Table 2-1). Scan MDCs are also listed in Attachment 2 (Table 2-2) and are also compared to the DCGL, the investigation level, and the DCGLEMIC. As shown in this table, the scan MDC is less than the investigation criteria in all cases, thus providing high confidence (95% or higher) that an elevated area would be detected in the scanning process. Since the investigation level at the alarm setpoint was always less than the design DCGLEMC, no EMC sample size adjustment was necessary.
TABLE 1 SURVEY UNIT DESIGN PARAMETERS Survey Unit Design Criteria Basis Area 291.2 m; Section 5, LTP, Class 1 (Reference 1)
Number of Direct Measurements 21 Based on an LBGR of Required 9,000 dpm/100 cm2 , sigma of 6,853' dpm/100 cm, and a relative shift of 1.3.
Type I = Type II = 0.05 Sample Area 13.9 m' 291.2 m2 / 21 samples' Sample Grid Spacing 3.7 m (13.9)1 Scan Grid Area 2 m' (approximately) O_ _______
Area Factor 3.6 50 m2/13.9 m; per LIP, Revision 3 Scan Survey Area 291.2 m' Class I - 100%
Background .- -;1- t ; , '
43-68 Direct and Scan 584 dpm/IOO cm- Ambient only (flat surfaces)
SHP-360 Scan 940 dpm/I 00 cm2 Ambient only (surface irregularities) _
43-68 Junctures 1,519 dpm/l00 cm 2 Ambient only 43-37 Scans (flat surfaces) 334 dpnml 00 cm 2 Ambient only Scan Investigation Level DCGL plus background See Table 2-2 (maximum) (Attachment 2)
DCGL 18S,000 dprm,/1 00 cm' LTP, Rev. 3 (Reference 1)T Design DC LEMC 164,800 dpm/1 00 cm 2 LTP, Rev. 3 (Reference-IT)
C. SURVEY RESULTS Twenty-three direct measurements were made in Survey Unit 3. All direct measurements were less than the DCGL. Direct measurement data are presented in Table 2.
Scanning resulted in 21 verified alarms. Thirteen alarms occurred while scanning flat surfaces with the 43-37 probe, four with the SHP-360 while surveying irregular surfaces, and four while surveying junctures with the 43-68 probe. The subsequent investigation work is discussed in the following section.
From LTP Revision 3, Table 5-lA for Containment El. -2 ft., A0100 2 This survey unit was initially designed for N=21 samples. The N=21 design led to a survey unit map with 23 locations on the systematic grid.
FA-0100-03, Revision 0 Page 3 of 28
TABLE 2 DIRECT MEASUREMENTS Sample Location Gross Activi c im INet Activity, (Table 1 Background Subtracted)
___ __ ___ __dpm /100 cm 2 FAOIOO-3-M001 883 298 FAO100-3-M002 1,135 551 FA0100-3-M003 481 -103 FA0100-3-M004 433 -152 FAOIO0-3-M005 570 -14 FA0lOO-3-M006 592 7 FAOI0O-3-M007 695 III FAOI0O-3-M008 1,094 510 FAOIOO-3-M009 808 224 FA0100-3-MOl0 1,195 611 FAO100-3-M011 709 125 FAOIOO-3-M012 765 180 FAOIOO-3-M013 515 -70 FAOIOO-3-M014 572 -12 FA0100-3-M015 613 29 FA0IOO-3-M016 527 -58 FAOI0O-3-M017 810 226 FAO100-3-M018 789 204 FA0100-3-M019 1,116 532 FA0100-3-M020 594 10 FA0IOO-3-M021 582 -2 FAOIOO-3-M022 2,073 1,489 FAOIOO-3-M023 810 226 Sample Mean 798 214 Median 709 125 Standard Deviation 355 355 Sample Range 433 - 2,073 -152 - 1,489 D. SURVEY UNIT INVESTIGATIONS PERFORMED AND RESULTS The initial scan process identified 21 locations of potentially elevated activity. An investigation was performed for each location using survey investigation package XAO100-03. The investigation of grid Ml 77 for the 43-37 alarm identified one additional area of elevated activity (i.e., two locations in grid 177). The investigation results and assessment are summarized in Attachment 3 (Table 3-1).
FA-0100-03, Revision 0 Page 4 of 28
E. SURVEY UNIT DATA ASSESSMENT An analysis of the direct sample measurement results, including the mean, median, standard deviation, and sample range, are provided in Table 2. The direct measurements were all below the DCGL without subtracting background. The maximum result, with background subtracted, is equivalent to 1,489 dpm/l 00 cm 2 . When adjusted for background (ambient background subtracted), the mean residual contamination level is 214 dpm/100 cm 2 . For a DCGL of 18,000 dpm/100 cm2 , this is equivalent to an annual dose rate of 0.0036 mrem/y.3 The 21 alarms were investigated as shown in Table 3-1 of Attachment 3 and determined to be less than 1.2% of the Elevated Measurement Comparison unity limit, thereby satisfying the EMC criterion.
F. ADDITIONAL DATA EVALUATION Attachment 4 provides additional data evaluation associated with Survey Unit 3, including relevant statistical information. Based on survey unit direct measurement data, this attachment provides the Sign Test Summary, Quantile Plot, Histogram, and Retrospective Power Curve.
- 1. The Sign Test Summary provides an overall summary of design input (Table 1) and resulting calculated values used to determine the required number (N) of direct measurements (per LTP Section 5.4.2). The Sign Test Summary is a separate statistical analysis that also calculates the mean, median, and standard deviation of the direct measurements.
The critical value and the result of the Sign Test are provided in the Sign Test Summary Table, as well as a listing of the key release criteria. As shown in the table, all of the key release criteria were clearly satisfied for FSS of this survey unit.
- 2. The Quantile Plot was generated from direct measurement data listed in Table 2 and indicates general symmetry about the median. The data set and plot are consistent with expectations for a Class I survey unit. There is no reason to conclude that the data set represents other than random variations in a Class I basement survey unit. It also should be noted that the maximum net activity (1,489 dpm/100 cm2 at location M022) is well below the DCGL of 18,000 dpm/100 cm .
- 3. A histogram plot was also developed on the direct measurement values. This plot shows that the direct data were essentially a log-normal distribution with one outlier.
- 4. A Retrospective Power Curve was constructed based on FSS results. The curve shows that the survey unit having a mean residual activity at a small fraction of the DCGL, has a high probability ("power") of meeting the release criteria. Thus, it can be concluded that the direct measurement data support rejection of the null hypothesis, providing high confidence that the survey unit satisfied the release criteria and that the data quality objectives were met.
3 This annual dose equivalent is based on LTP Table 6-1 1 which shows the contaminated concrete dose contribution (for surfaces contaminated at the DCGL) to be 0.301 mrem/y.
FA-0100-03, Revision 0 Page 5 of 28
As mentioned in Section B, removable contamination samples were obtained at each (direct) measurement location. In that this survey unit involved a (backfilled) basement and not a standing building, the removable contamination measurements were not applicable to release decisions for the survey unit. However, the samples were obtained and evaluated, indicating less than MDA values for alpha (i.e., < 1.7 dpm/l 00 cm 2 ) and beta activity equal to a maximum of 57.4 dpm/100 cm2 . Thus, in comparison with the mean survey-unit net activity (Table 2), the removable contamination sampling effort indicated that the activity is fixed.
G. CHANGES IN INITIAL SURVEY UNIT ASSUMPTIONS ON EXTENT OF RESIDUAL ACTIVITY The survey was designed as a Class I area; the results were consistent with that classification.
The post-remediation direct measurement sample standard deviation was less than the design sigma. Thus, a sufficient number of sample measurements were taken.
1I. LTP CHANGES SUBSEQUENT TO SURVEY UNIT FSS The FSS of Survey Unit 3 was designed and performed using the criteria of the approved LTP (Revision 3 Addenda, Reference 3) and the license amendment for activated concrete (Reference 4).
I. CONCLUSION The FSS of this survey unit was designed based on the LTP designation as a Class I area. The survey design parameters are presented in Table 1. The required number of direct measurements was determined for the Sign Test in accordance with the LTP. As presented in Table 2, all beta direct measurements were less than the DCGL of 18,000 dpm/1 00 cm2 .
A Sign Test Summary analysis demonstrated that the Sign Test criteria were satisfied. The direct measurement sigma was determined to be less than that used for design, thus indicating that a sufficient number of samples were taken.
The Retrospective Power Curve shown in Attachment 4 confirmed that sufficient samples were taken to support rejection of the null hypothesis, providing high confidence that the survey unit satisfied the release criteria and the data quality objectives were met. Attachment 4 also revealed that direct measurement data represented essentially a log-normal distribution, with variance consistent with expectations for a Class I survey unit.
The scan survey design for this survey unit was developed in accordance with the LTP with significant aspects of the design discussed in Section B and Table 1. Attachment 3 shows the areas identified by verified alarms and provides the results of the investigation actions. The areas under investigation were evaluated using the appropriate area factor. The survey unit was determined to satisfy the elevated measurement comparison unity rule per the LTP methodology.
In addition, while not part of the release decision criteria, removable contamination sampling confirmed that the majority of remaining activity in this basement survey unit was fixed.
It is concluded that FA0100 Survey Unit 3 meets the release criteria of IOCFR20.1402 and the State of Maine enhanced criteria.
FA-0100-03, Revision 0 Page 6of28
J. REFERENCES
- 1. Maine Yankee License Termination Plan, Revision 3, October 15, 2002
- 2. Maine Yankee letter to the NRC, MN-02-061, dated November 26, 2002
- 3. NRC letter to Maine Yankee, dated February 28, 2003
- 4. Maine Yankee letter to NRC, MN-03-049, dated September 11, 2003 FA-0100-03, Revision 0 Page 7 of 28
Attachment 1 Survey Unit Maps FA-0100-03, Revision 0 Page 8 of 28
Maine Yankee AlaiiieYankeeDeco))oilissioitizgProjectSlrlrtejFot-i i MapID#: FA0100 Decommissioning Team I ee Survey Type: - Characterization - Turnover N Final Status Survey I Survey Area Name: Reactor Containment Building Note: Grid based on Maine State Coordinate System (West Zone) NAD 1927 623.000 E 623.500 E 624,000 E 624,500 E 625,000 E Survey Area: FA0100 MN God>N FA-0100-03, Revision 0 Page 9 of 28
DecommissinniYngTeem I aize Yankhee Decommtt.issiontinzg Project Survey S uap I MapID# FA 0100-UNITS Surveylype: [E Vefification [J Turnover Z Finof Stoik Survey IAre Ncme: Containment Bldg. (Internal)17' el. & below I
I I
I FA-0100-03, Revision 0 Page 10 of 28
Mailne Yanakee Decormmissioning Project Survey lap MapD#FA O100-U3-DIRECTS Surveylype: M Verification D Turnover E Fincl Status Survey ISurvey Aea Name: Containment Bldg. Survey Unit 3 FA-0100-03, Revision 0 Page II of 28
49.5"Tl ID
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- I, S , . ,, -.* . I X,5 00 CA Ao o 0 M064 M065 ,M066 ,M067 ,M068 ' M069 jM070 ,M071 ,M072 ,M073 ,M074 ,M075lia AnLoo 4, 3 Pump Base 3 3
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Mane Yankee MIainte Yanhee Decommissiotinzg Project Survey llap l MopID# FA 0100 U3-S1 Decoarwnissioninc Team I Survey Type: [ Venlicalion E] Turnover N Final StatSurveSu ruveyArea Name: Containment Bldg. Survey Unit 3 Inboard (toward ICI)
- 13ft.-
M102 I M101 M100 I ft. I _______________
M099 M098 M097
- loft.-
M083 M084 M105 M108 HIO M094 M091 M082 M081 M080 M079 M104 M107 14ft.
M095 M092 i _ t --I -4 I M096 M093 M078 M076 M103 M106 I
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,- 4- -
- lOft.-
M085 M086 M087 I l Oft.
I M088 M089 M090 Outboard FA-0 100-03, Revision 0 (toward wall) Page 15 of 28
Maine Yankee Decommissioning Team I MaineYankeeDeconmntission in" rProjec ProecAraSurveyMaprvey LI-laS IMIDp FA0100-U3-S2 Survey Type: f] Verification [] lurnover ZFinal StoiLu Survey ISurvey Area Namne: Containment Bldg. Survey Unit 3_
Inboard (toward ICI)
- 13ft.-
I M135 I M134 M133 l Oft. _._..~~I___!__
I M132 M131 M130
- loft.-
I r3 r3M110 l M M127 M124 M109 r Mill M138 M141
_i___ Ii '
W. I _ I 1 M128 M125 M112 M113 M114 M137 M140 14ft.
___________i_____ __________ _ _ __,___ _ .__________ __________
'I M129 M126 M115 I [ M117 M136 M139
©D M116 i
- loft.
M118 M119 M120 1 lOft.
'I M121 M122 M123 Outboard FA-0100-03, Revision 0 (toward wall) Page 16 of 28
FA 01 00-U3-S3 Mdane Yank Decorimissioning learn l
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MaopeeIDecommissioning l MaplD#
Survey lype [fl Verification, E: Turnover M Final StaliA Surey ISurveyArea Name: Containment Bldg. Survey Unit 3 Inboard (towa rd ICI)
- 13ft.-
I I I I M168 M167 M166 lIt _ - I __ !
M165 M164 M163 I-
-l oft.-
I c M143 O 0 I M160 M157 M142 M144 M171 1M174 M161 M158 M145 M14 4
M147I Mj M170 M173 14ft.
II M162 M159 M148 i M150 M169 M172 14 M149 1 0
- loft.-
M151 M152 M153 I 10ff .
M154 M155 M156 Outboard FA-0100-03, Revision 0 (toward wall) Page 17 of 28
Maine Yankee Maine YankeeDeco.rtrnissioningiProject Sirvuey lap IMcID#FAO1OOU3-SUMP DecoMMIssiong eam SuveyType: E] Verification LI Turnover 3 FinalStatus Survey SuveyAiea Nome: Containment Bldg. Survey Unit 3 Rx. Bldg. Sump
< 54%
It I24"-D M177 I
t 30" M176 M175 M178 I,
M179 Rx. Bldg. Sump FA-0100-03, Revision 0 Page 18 of 28
Attachment 2 Survey Unit Instrumentation FA-0100-03, Revision 0 Page 19 of 28
TABLE 2-1 INSTRUMENT INFORMATION E-600 SIN Probe SIN (type) 2617 190752 (43-37) 2618 190752 (43-37) 2488 190327 (43-37) 1641 148938 (43-68) 1927 149071 (43-68) 2621 148932 (43-68) 2488 148938 (43-68) 1933 149075 (43-68) 1927 148934 (43-68) 1625 459 (SHP-360) 2618 455 (SHP-360) 2488 446 (SHP-360) 1641 446 (SHP-360)
TABLE 2-2 INSTRUMENT SCAN MDC, DCGL, INVESTIGATION LEVEL, AND DESIGN DCGLEIC 43-68 1 43-68 SIIP-360 43-37 Flats uJunftures ace Flats D o IIrregularities J_
Scan MDC 722 1,875 2,247 1,404 (dpm/100 cm2 ) (Note 1) (Note 1) (Note 1) (Note 1)
DCGL 2 18,000 18,000 18,000 18,000 (dp miIOO0 cm )__ _ _ _ _ _ _
Investigation Level1 18,797 19,400 (Alarm Setpoint) 16,931 19,98L8,77l1,40 dpm/10O cm 2 < DCGL - DCGL plus -DCGL plus plcgrus (Reference 2) Background Background (Note 2)
Design DCGLEMC (dpm/100 cm 2 ) 64,800 64,800 64,800 64,800 (from RR Table 1)
NOTES: 1. Scan MDC from LTP Rev. 3, Table 5-6 was adjusted for a change in efficiency due to different material and/or geometry.
- 2. Investigation level was calculated for only 126 cm2 of detection surface area.
FA-0100-03, Revision 0 Page 20 of 28
Attachment 3 Investigation Table FA-0100-03, Revision 0 Page 21 of 28
TABLE 3-1 INVESTIGATION TABLE Scan Alarm Scan Investigation l DCGLEMC Comparison Alarm Initial Max. Area Elevated Area DCGLEMc Elevated Area Grid No. Setpoint Scan Scaler Area Factor DCGLEMC Activity Comparison
______________ _____ Vclue (cpm)' (cm2) (AF)6 (dpmn/I 00 CM2) (dPM/ I 00 cm 2 )7 Factor M006 (43-37) 8,800 8,930 (2,410) N/A N/A N/A N/A < DCGL M077 (43-37) 8,800 37,200 23,400 800 625 1.13E+07 56,277 5.00E-03 M080 (43-37) 8,800 20,700 (3,690) N/A N/A N/A N/A < DCGL M085 (43-37) 8,800 11,660 (635) N/A N/A N/A N/A < DCGL M142 (43-37) 8,800 21,100 13,040 320 1,563 2.81 E+07 31,361 1.12E-03 M146 (43-37) 8,800 19,000 9,400 230 2,174 3.91 E+07 22,607 5.78E-04 M147 (43-37) 8,800 15,500 (841) N/A N/A N/A N/A < DCGL M148 (43-37) 8,800 14,400 (6,710) N/A N/A N/A N/A < DCGL M149 (43-37) 8,800 25,300 21,800 230 2,174 3.91 E+07 52,429 1.34E-03 M155 (43-37) 8,800 16,960 10,250 230 2,174 3.91 E+07 24,651 6.30E-04 M161 (43-37) 8,800 27,700 8,230 230 2,174 3.91 E+07 19,793 5.06E-04 M165 (43-37) 8,800 12,780 7,110 N/A N/A N/A N/A < DCGL 4 Junctures were surveyed with an alarm setpoint of 3600 cpm while the data was evaluated at 3120 cpm. SHP-360 surveys wvere performed with an alarm setpoint of 1000 cpm while the data was reviewed at 800 cpm.
5 Scan alarms occurring with the 43-37 were investigated with the 43-68 detector. All 43-37 alarm grids were rescanned with a 43-68 probe and an alarm setpoint of 7000 cpm. Values shown in parenthesis indicate peak hold readings during the 43-68 scans that were below tihe investigation level.
6 For investigation purposes, consistent with LTP dose modeling for basement concrete surfaces and LTP Section 6.8.1, a conservative area factor was determined by the formula of AF = 50 m2/actual size of the elevated area.
7 As an additional conservatism, the background and survey unit mean activity have not been subtracted in calculating the elevated area activity.
FA-0100-03, Revision 0 Page 22 of 28
Scan Alarm Scan Investigation _____DCGLENIC Comparison Alarm Initial Max.
ElvtdAe rdN.Scan Sae AraArea Area DCGLEMC Elevated Area ElvtdAeDGL DCGLEMC C Elevated Area Grid No. Setpoint Value Scaler Ae2a FVactor (dpm/1200 CM) Activity Comparison (p) 4 (epm cme (dpm/160 cmm/100 CM 2 7
) Factor M177 (43-37) (Area 1) 8,800 11,020 25,000 125 4,000 7.20E+07 60,125 8.35E-04 M177(43-37) (Area 2) 8,800 11,020 30,200 50 10,000 1.80E+08 72,631 4.04E-04 M143 (43-68-Juncture) 3,120 6,870 3,250 100 5,000 9.00E+07 20,310 2.26E-04 M175 (43-68-Juncture) 3,120 19,390 21,500 1500 333 6.OOE+06 134,358 2.24E-02 M177 (43-68-Juncture) 3,120 5,350 5,760 200 2,500 4.50E+07 35,996 8.00E-04 M179 (43-68-Juncture) 3,120 6,500 5,950 200 2,500 4.50E+07 37,183 8.26E-04 M045 (SHP-360) 800 1,191 1,160 180 2,778 5.OOE+07 27,256 5.45E-04 M142 (SHP-360) 800 5,630 2,840 200 2,500 4.50E+07 66,729 1.48E-03 M148 (SHP-360) 800 1,180 2,630 50 10,000 1.80E+08 61,795 3.43E-04 M150 (SHP-360) 800 1,310 979 200 2,500 4.50E+07 23,003 5.1 lE-04 DCGL Survey Unit Mean Survey Unit N/A N/A N/A N/A N/A 18,000 214 1.19E-02 Remainder Total 4.94E-02 FA-0 100-03, Revision 0 Page 23 of 28
Attachment 4 Statistical Data FA-0100-03, Revision 0 Page 24 of 28
Survey Package FA-0100 Unit 3 Surface Sign Test Summary
- '7 - -' vauat on lnputValiues---ii.C. ,
- omnient ;.i i; Survey Package: FA-0100 Containment Building Survey Unit: 03 Evaluator: GP DCGLw: 18,000 DCGLenmc: 64,800 LBGR: 9,000 Sigma: 6,853 Type I error: 0.05 Type II error: 0.05 Total Instrument Efficiency: 33.0%
2 126 Detector Area (cm ):
Choosing 'N/A' sets material Material Type: N/A background to i0" act~~~~ > 4 t' bi4 ;i ,mit.-
-;~~t o-A - acltvles Zl,: 1.645 ZI.PB 1.645 Sign p: 0.903199 Calculated Relative Shift: 1.3 Relative Shift Used: 1.3 Uses 3.0 if Relative Shift >3 N-Value: 17 N-Value+20%: 21 .-
Number of Samples: 23 Median: 125 Mean: 214 Net Static Data Standard Deviation: 355 Total Standard Deviation: 355 SRSS Maximum: 1,489
-i,' J',['.'irig.n, _Com ts<7B^.
Adjusted N Value: 23 S+ Value: 23 Critical Value: 15
,,E-@;<^ Critera'atsfcin <.q',<>-o~.!--a' r o r -4c Sufficient samples collected: Pass Maximum value <DCGL',: Pass Median value <DCGL,: Pass Mean value <DCGL,: Pass Maximum value <DCGLe,,: Pass Total Standard Deviation <=Sigma: Pass Sign test results: Pass Tesre uniital Stesallcodtins: Pass ____________ommet________
The survey unit passes all conditional Passi FA-0100-SW-SurfaceSign 7129/04 3:49 PM FA-0100-03, Revision 0 Page 25 of 28
FA-0100 SU-3 Quantile Plot 1600 1400 1200 E
1000 *1 0 ......... . . . . . . .........
C 0
VO C co o Q 800 I
- Activity (dpm/100 0 C 0. cm2) Ii 600 00 w'
- Median (dpm/100 C
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400 cm2) *1
.- W 200 U
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'VI
._ A_
.ram
-200 50- 75 . ... Al
-400 Percent
One-Sample T-Test Report Page/Date/Time 2 11/22/04 10:41:37AM Database C:\Program Files\NCSS97\FA0100 SU-3.SO Variable C2 Plots Section Histogram of FA-0100, SU-3 U)
E CD E
z Activity (dpm100 cm2)
FA-0100-03, Revision 0 Page 27 of 28
One-Sample T-Test Power Analysis Page/Date/Time 2 7/29/04 3:40:33 PM Chart Section Retrospective Power Curve 1.0- . ------..... .
0.8-0.6- i L..
. .. \ . .
0)
.I 0~
0.4-0.2-I I Il 0.0 _ I 0 5000 106oo 15000 20000 Survey Unit Mean (dpm/1 00 cm2)
FA-0100-03, Revision 0 Page 28 of 28