CY-07-104, Revision 1 to the Final Status Survey Reports for Phase VI and VII

Revision 1 to the Final Status Survey Reports for Phase VI and VII

ML073130469
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	06/28/2007
From:	Gerard van Noordennen Connecticut Yankee Atomic Power Co
To:	Document Control Desk, NRC/FSME
References
CY-07-104
Download: ML073130469 (15)

Text

CONNECTICUT YANKEE ATOMIC POWER COMPANY 362 INJUN HOLLOW ROAD EAST HAMPTON, CT 06424-3099.

kHADDAM NECK PLANT CY-07-104 Docket No. 50-213 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555-001 Haddam Neck Plant Revision 1 to the Final Status Survey ReDorts for Phase VI and VII The Phase VI and Phase VII Final Status Survey (FSS) Final Reports were submitted to the NRC on February 20, 2007 and May 28, 2007, respectively. This letter submits Revision 1 to the Phase VI and VII FSS Final Reports. Revision 1 addresses comments provided by the NRC Staff during their review of the reports, clarifies figures, adds scan area maps for survey units, and provides editorial changes.

This revision is provided in hard copy with instructions-to change out pages in the original reports and also provides compact diskettes containing the revised release records.

We trust that this information is satisfactory. Ifyou have any questions or. require any additional information, please contact me at (860) 573-5523.

Sincerely, 6-Dato7 Date Gerard P. van Noordennen Director, Regulatory Affairs and Quality Assurance

Enclosures:

1. Instructions for Replacing Pages and Figures in Phase VI and VII FSS Final Reports

2. Compact diskettes of revised documents cc: S. J. Collins, NRC Region I Administrator T. B. Smith, NRC Project Manager L. Kauffman, Decommissioning Branch,. NRC Region I E. L. Wilds, Jr., Director, CT DEP Division of Radiation

Haddam Neck Plant Phase VI and VII Final Status Survey Instruction for Removal/ Insertion of Pages Phase VI and Phase VII Insert/Remove/Replace Page (s) Effective Date/

Books Revision PHASE VI Phase VI, Book 7 In Attachment 1 June 2007 Rev. 1 Survey Area 9522-0001 add Figure 9, 10, and 11 Phase VI, Book 16 In Attachment 1 June 2007 Rev. 1 Survey Area 9539-0001 add Figure 8 Phase.VI, Book 17 In Attachment 1 June 2007 Rev. 1 Survey Area 9539-0002 add Figure 8 PHASE VII Phase VII, Book 1 Replace Page 5 June 2007 Rev. 1 Table 1-1 Phase VII, Book 2 In Attachment 1 June 2007 Rev. 1 Survey Area 9302-0000 add Figure 5 Phase VII, Book 3 Remove all figures after figure 1 June 2007 Rev. 1 Survey Area 9306-0000 and replace with Figures 2, 3, 4, and 5 Phase VII, Book 15 Replace Page 12 June 2007 Rev. 1 Survey Unit 9514-000 Release Record Phase VII, Book .16 In Attachment 1 June 2007 Rev. 1 Survey Area 9514-0001 add Figure 5 (Addendum 1)

CY Decommissioning Project SCAN AREA LOCATION MAP & WORKSHEET SURVEY AREA #: 9522 SURVEY UNIT #: 0001 DESCRIPTION OF AREA: Southeast Grounds (non-protected area) 0002 9522-0002 7) 16 Figure 9 June 2007 Rev. 1 I

CY Decommissioning Project SCAN AREA LOCATION MAP & WORKSHEET SURVEY AREA #: 9522 SURVEY UNIT #: 0001 DESCRIPTION OF AREA: Southeast Grounds (non-protected area)

SCAN AREA #s I & 2 o007 oOlO Afea #1 0014 Q009 Scan :2 Q0~12'  !

..onJsow Figure 10 June 2007 Rev. 1

CY Decommissioning Project SCAN AREA LOCATION MAP & WORKSHEET SURVEY AREA #: 9522 SURVEY UNIT #: 0001 DESCRIPTION OF AREA: Southeast Grounds (non-protected area)

SCAN AREA # 3 0006

,a #3 0008 9522-O 0011 o007 Figure I11 June 2007 Rev. 1

A 0 100

- if MAO7*w, soenlmomm ConnocutYtkve AtomiAcPower Compeny Scan Am Lwahm for Suvuy Unt 9539-0001 Jiwne2O07Rev. I

w N"1 Ccrmectku Ymkw AtmwiPowwC4NDINJy

&=a Amw Locahm ANDWvy for Uit 9539-(J0 June2007Rev. 1

Connecticut Yankee Atomic Power Company Haddam Neck Plant Connecticut Yankee Atomic Power Company Haddam Neck Plant FinalStatus Survey FinalReport - Phase VII May, 2007 Table 1-1 Phase VH Survey Unit Classification and Description List Survey Survey Class General Description of the Survey Unit l Area Unit 2

9302 0000 3 Northwest Protected Area Grounds (3,490 m )

9306 0000 2 Southwest Protected Area Grounds (5,878m 2) 9312 0001 1 Containment (Former Radiologically Controlled Area) (1,975m 2 )

9312 0002 1 Spent Fuel Building (SFB) (Former Radiologically Controlled Area) (1,975 m2 )

9312 0003 1 Southwest 115kV Switchyard ( Former Radiologically Controlled Area) (1,486 M2 ),

9312 0004 1 Former Radiologically Controlled Area North of the Primary Auxillary Building and Tank Farm (1,586 M2 )

9312 0005 1 Former Radiologically Controlled Area Tank Farm (1,460 M2) 9312 0006 1 Primary Auxiliary Building (PAB) (Former Radiologically Controlled Area) (1,754 M2) 9312 0007 1 Radiologically Controlled Area /RRF Bldg./ 115 kV East Footprint (1,566 M2 )

9312 0008 1 115 kV West Side GW Treatment Facility (Former Radiologically Controlled Area)

(1,351 M 2) 9312 0009 1 Former Radiologically Controlled Area East Trench North (1,511 mi2 )

9312 0010 1 Radiologically Controlled Area, East Trench South / MWST A&B (1,365 m 2 )

9313 0000 2 Central Site Grounds (8,266 M2 )

9514 0000 3 West Primary Parking Lot (18,757 M2) 9514 0001 2 East Primary Parking Lot (8,739 mi2) 9801 0000 A Subsurface Soils in the Radiologically Controlled Area (15,788 m2 )

9802 0000 B Subsurface Area Associated with the West Industrial Site Grounds (non-protected area)

(18,292, m')

9803 0000 C Subsurface Area Associated with the North Grounds (non-protected area) (35,485 m 2)

(1) Refer to Section 3.2 for a more detailed description.

5 June 2007 Rev. 1

II 9302-0000 I-En -Sm~m SCAN AREA 01 0 jE 33 SCAN AREA 02 Conoim 'ut Yankee Atomic Power Compmay DAte: ovMOr by:. It Figure 5 Sudwc Survey Unit9302-O(00 P- 0 Cak.

June 2007Rev. 1

9312-0003 9306-0000 20 47 9312-0008 02 17 16 10 18 06 0 01 13 am*Lomw 0

09 12 05 08 19 0 110 04 15

?mwc 11 14 07 9304-0002 9304-0001 COmnamWcu YankeeAftm PowwaConpWz Dat,.Arl2907 Figure2 Swk Locom u ff swwy Unit 93O6-Km Revilkw 0 a nby.R.

,rf Mfsa~a~gfl June 2007Rev. 1

9312-0003 9306000 9312-0008 0.060

-0.016 -0.033 0.083 0.060 0.007 oat 0.011 0.048

-0.013 0.030 0.001 0.002

-0.006 -0.033 0 11. 2m

-0.006 -0.002

~am 0.013 0.028 0.007 9304-0002 9304-0001 Cwwonm~tt YamkeAteaniPow~wapmny Figuic3 DWhp oho aqigm. byE~

. RMA~ wsa Wi CeAqum-137PbmtigPotforSwvoy Urnit 9364OOM JAzm2007Rcv. 1

I 1.

9312-0003 9306-0000 9312-0008

-0.046 47 0.010 -0.007 0.022 0.008 0.006 O CApAtn~e~

0.002 0.026 0.000 0.015 0.005 0.004 0.005 -0.020 no 0.011 -0.001 0.092 0.003 NAMmsTvi

-0.001 9304-0002 9304-0001 4-...

Caznacdcu Yikw Aft=icPowmw anmy Figur= 4 Revidoe60 c~eby.R.

Ch~ MausaWil CobaXt60 PoetngPlotfor Survey Unit 9306-0 (KJ Jne 2007Rev. 1

SCAN GRID 1 9306-0000 C~mnwcdao Ykd.AftwnPowuccerf.y Smi GdLoemwMap frvuy w UnNOW4'AX Jume2007Rev. I

WEST PRIMARY PARKING LOT SURVEY UNIT 9514-0000 RELEASE RECORD The LTP does not require a specific scanning coverage for Class 3 survey units.

The fraction of scanning coverage is determined during the DQO process with the total area, and location(s) based on the likelihood of finding elevated activity during FSS. Survey data collected to date indicates a low probability of finding areas of elevated activity. Nevertheless, the identification of discrete sources of elevated activity in 1980 justifies some scan coverage.

Based on the historical site assessment and the characterization data available, it was determined that three (3) original scan areas were established. The total surface area to be scanned was approximately 10% of the survey unit.

Additionally, Addendum #1 to the FSSP established the need for a fourth scan area under the "8-plex" trailer complex-on the asphalt that was to remain after license termination. A map of the scan grid locations is provided in Attachment 1.

For this Class 3 survey unit, the "Investigation Level" for area scanning and soil sample measurement results are those levels specified in LTP, Table 5-8. Table 4 provides a synopsis of the survey design.

Table 4 - Synopsis of the Survey Design()

Feature Design Criteria Basis Survey Unit Land 18,757 m2 Based on AutoCAD-LT and Area Visual Sample Plan calculations Type 1 and Type 2 errors were Number of 15 random (in addition 0.05, sigma was 0.04 pCi/g, and Measurements to 3 biased and I the LBGR was adjusted to 0.91 to investigative) maintain Relative Shift in the range of 1 and 3.

5.38 pCi/g Cs-137 Administratively set to achieve Operational DCGL 2.59 pCi/g Co-60 seventeen (17) mrem/yr TEDE (2) 1.05 pCi/g Sr-90 Soil Investigation 5.38 pCi/g Cs-137 The Operational DCGL meets the Level 2.59 pCi/g Co-60 LTP criteria for a Class 3 survey 1.05 pCi/g Sr-90 unit Approximately 10%

of the area. Addendum Scan Survey Area #1 to the FSSP required The LiP requires judgmental Coverage 25% of the surface area scanning coverage for Class 3 of asphalt that is to survey units remain, to be scanned.

Scan Investigation Detectable over Administratively set to achieve Level background seventeen (17) mrem/yr TEDE (2)

(1) The survey design used a much smaller value for the Operational DCGL than provided by Table 2 to conservatively account for the contribution to the total dose from existing and future groundwater which had not been established at the time of planning this FSS.

(2) The allowable dose for soil in this survey unit is seventeen (17) mrem/yr TEDE as the bounding dose from existing and future groundwater has been established based on field data (reference CY memo ISC 06-024.)

June 2007 Rev. I 12

Afne2W7Rff. 1