CONNECTICUT YANKEE ATOMIC POWER COMPANY

kHADDAM NECK PLANT

362 INJUN HOLLOW ROAD EAST HAMPTON, CT 06424-3099.

CY-07-104

Docket No. 50-213

U.S. Nuclear Regulatory CommissionAttention: Document Control DeskWashington, D.C. 20555-001

Haddam Neck PlantRevision 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 tothe NRC on February 20, 2007 and May 28, 2007, respectively. This letter submitsRevision 1 to the Phase VI and VII FSS Final Reports. Revision 1 addressescomments 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 theoriginal reports and also provides compact diskettes containing the revised releaserecords.

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

Sincerely,

Gerard P. van NoordennenDirector, Regulatory Affairs and Quality Assurance

6-Dato7Date

Enclosures: 1. Instructions for Replacing Pages and Figures in Phase VI andVII FSS Final Reports2. Compact diskettes of revised documents

cc: S. J. Collins, NRC Region I AdministratorT. B. Smith, NRC Project ManagerL. Kauffman, Decommissioning Branch,. NRC Region IE. L. Wilds, Jr., Director, CT DEP Division of Radiation

Haddam Neck PlantPhase 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 RevisionPHASE VIPhase VI, Book 7 In Attachment 1 June 2007 Rev. 1Survey Area 9522-0001 add Figure 9, 10, and 11Phase VI, Book 16 In Attachment 1 June 2007 Rev. 1Survey Area 9539-0001 add Figure 8Phase.VI, Book 17 In Attachment 1 June 2007 Rev. 1Survey Area 9539-0002 add Figure 8PHASE VIIPhase VII, Book 1 Replace Page 5 June 2007 Rev. 1Table 1-1Phase VII, Book 2 In Attachment 1 June 2007 Rev. 1Survey Area 9302-0000 add Figure 5Phase VII, Book 3 Remove all figures after figure 1 June 2007 Rev. 1Survey Area 9306-0000 and

replace with Figures 2, 3, 4, and 5Phase VII, Book 15 Replace Page 12 June 2007 Rev. 1Survey Unit 9514-000Release RecordPhase VII, Book .16 In Attachment 1 June 2007 Rev. 1Survey Area 9514-0001 add Figure 5 (Addendum 1)

CY Decommissioning ProjectSCAN AREA LOCATION MAP & WORKSHEET

SURVEY AREA #: 9522 SURVEY UNIT #:DESCRIPTION OF AREA: Southeast Grounds (non-protected area)

0001

0002

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16

Figure 9 June 2007 Rev. 1

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CY Decommissioning ProjectSCAN AREA LOCATION MAP & WORKSHEET

SURVEY AREA #: 9522 SURVEY UNIT #: 0001

DESCRIPTION OF AREA: Southeast Grounds (non-protected area)

SCAN AREA #s I & 2

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Figure 10 June 2007 Rev. 1

CY Decommissioning ProjectSCAN AREA LOCATION MAP & WORKSHEET

SURVEY AREA #: 9522 SURVEY UNIT #:

DESCRIPTION OF AREA: Southeast Grounds (non-protected area)

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Connecticut Yankee Atomic Power Company Haddam Neck PlantConnecticut Yankee Atomic Power Company Haddam Neck Plant

Final Status Survey Final Report - Phase VII May, 2007

Table 1-1 Phase VH Survey Unit Classification and Description ListSurvey Survey Class General Description of the Survey Unit lArea Unit

9302 0000 3 Northwest Protected Area Grounds (3,490 m2)

9306 0000 2 Southwest Protected Area Grounds (5,878m 2)

9312 0001 1 Containment (Former Radiologically ControlledArea) (1,975m 2)

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

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

),

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

9312 0005 1 Former Radiologically Controlled Area TankFarm (1,460 M2)

9312 0006 1 Primary Auxiliary Building (PAB) (FormerRadiologically Controlled Area) (1,754 M2)

9312 0007 1 Radiologically Controlled Area /RRF Bldg./ 115kV East Footprint (1,566 M2 )

9312 0008 1 115 kV West Side GW Treatment Facility(Former Radiologically Controlled Area)(1,351 M2)

9312 0009 1 Former Radiologically Controlled Area EastTrench North (1,511 mi2)

9312 0010 1 Radiologically Controlled Area, East TrenchSouth / 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 ControlledArea (15,788 m2)

9802 0000 B Subsurface Area Associated with the WestIndustrial Site Grounds (non-protected area)(18,292, m')

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

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

5 June 2007 Rev. 1

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WEST PRIMARY PARKING LOTSURVEY 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 withthe total area, and location(s) based on the likelihood of finding elevatedactivity during FSS. Survey data collected to date indicates a low probability offinding areas of elevated activity. Nevertheless, the identification of discretesources of elevated activity in 1980 justifies some scan coverage.

Based on the historical site assessment and the characterization data available, itwas determined that three (3) original scan areas were established. The totalsurface area to be scanned was approximately 10% of the survey unit.Additionally, Addendum #1 to the FSSP established the need for a fourth scanarea under the "8-plex" trailer complex-on the asphalt that was to remain afterlicense termination. A map of the scan grid locations is provided in Attachment1.

For this Class 3 survey unit, the "Investigation Level" for area scanning and soilsample measurement results are those levels specified in LTP, Table 5-8. Table4 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 andArea 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 toinvestigative) 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 survey1.05 pCi/g Sr-90 unit

Approximately 10%of the area. Addendum

Scan Survey Area #1 to the FSSP required The LiP requires judgmentalCoverage 25% of the surface area scanning coverage for Class 3

of asphalt that is to survey unitsremain, to be scanned.

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

(1) The survey design used a much smaller value for the Operational DCGL than providedby Table 2 to conservatively account for the contribution to the total dose from existing andfuture 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 thebounding dose from existing and future groundwater has been established based on fielddata (reference CY memo ISC 06-024.)

June 2007 Rev. I 12

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