ML061220322

License NS-1, N. S. Savannah Annual Report for Cy 2005

ML061220322
Person / Time
Site:	NS Savannah
Issue date:	02/28/2006
From:	Koehler E US Dept of Transportation, Maritime Admin
To:	Alexander Adams NRC/NRR/ADRA/DNRL
References
Download: ML061220322 (25)

Text

U.S. Department 400 Seventh Street, S.W.

of Transportation Washington, D.C. 20'590 Maritime Administration February 28, 2006 U.S. Nuclear Regulatory Commission ATTN: Alexander Adams, Mail Stoo 012-G13 Washington, DC 20555-0001

Subject:

License NS-1, Docket No. 50-238; N.S. SAVANNAH Annual Report for CY 20(15

Dear Mr. Adams:

This letter constitutes the Maritime Administration's (MARAD) annual report of activities for the Nuclear Ship SAVANNAH (NSS) for Calendar Year 2005. The SAVANNAH remains securely moored at MARAD's James River Reserve Fleet, near Newport News, Virginia. The physical facility status is substantially unchanged from CY 2004.

A number of significant activities were completed and undertaken onboard the NSS during CY 2005.

Most notably, MARAD completed its corrective action in response to violation number 2001-201-Cl1, and submitted a letter reply on that subject on March 18, 2005. An internal reorganization resulted in reestablishment of the SAVANNAH Technical Staff in May 2005 as the organizational unit responsible for all NSS program activities. Radiological and environmental characterization scoping surveys were performed in March-April 2005 to support pre-decommissioning planning; unexpected results th refrom required additional surveys and destructive sampling activities that were conducted through August 2005. Results of these activities were presented to the NRC in a public meeting in Rockville on November 2,2005.

As has become routine practice, the details of these activities are found in the two enclosed documents; a) the minutes of the NSS Review and Audit Committee annual meeting held at the James River Reserve Fleet on December 15, 2005, and b) the NSS Annual (Radiological) Survey prepare&

by General Health Physics, Inc. Additional activities not included in the committee minutes, as well as several, regulatory reports are incorporated within the remainder of this letter.

DecommissioningFundingStatement (ref. I0 CFR 50.750() and 50. 75(e,) (iv)):

The N.S. SAt VANNAH (NSS) and its nuclearreactorarefederally ownedfacilities,representedby the UnitedStates Departmentof Transportation,actingby andthrough the MaritimeAdministration. As such,fundingfor the decommissioning and disposalof the NSS reactorand nuclear systems components and waste must be providedby appropriationsfromthe UnitedStates Congress.

MARAD maintainsnoffunding reserve, nor does it accumulate or collectfunds as describedin the CFR reference. As has been previously noted in correspondenceanddialogue, the Congress

..A

N.S. SAVANNAH CY 2005 Annual Report License NS-1, Docket No. 50-238 February 28, 2006 appropriatedfundsto commence decommissioning of the NSSbeginning in FY2005. Appropriated funds in .FY's 2005 and 2006 total$5.0Mless rescissions. The President'sFY2007 Budget Request includes an additional$10. OM to continue NSS activities. Additionalfundingrequests are expected to be developedand includedinfuture budgets. MARAD expects to complete a comprehensive decommissioning cost estimate in CY2006.

Changes. Tests and Experiments [ref: IO CFR 50.59(d)(2)I:

In August 2005, MARAD conducteddestructive samplingof the NSS Reactor Pressure Vessel wall, outer two core thermalshield barriers,and innerand outerannularwalls ofthe Neutron Shield Ta'ik for the purpose ofradiologicalclassification. MARAD completed a 50.59 evaluation of the experiment, usingthe most recentformalFSAR and correspondenceandsafety evaluationscontained in the severallicensingactions completed subsequent to that FSAR.

Other significant activities onboard the SAVANNAH included a number of familiarization and orientation tours for senior Department of Transportation and MARAD officials and staff. Also during the calendar year MARAD hosted pre-decommissioning site inspections and Q&A sessions for potential decommissioning bidders, and engineering/planning contractors. These activities were conducted within the bounds of the Technical Specifications, yet represented a substantially increased level of activity onboard the ship as compared to any year since the ship relocated to the James River Reserve Fleet in 1994.

As always, MARAD is most appreciative of the support that NRC extends to the SAVANNAH.

Please feel free to contact me at any time if you have any questions regarding MARAD's N.S.

SAVANNAH activities.

Sincerely, Erhard W. Koehler Senior Technical Advisor, N.S. SAVANNAH Enclosures

N.S. SAVANNAH CY 2005 Annual Report License NS-1, Docket No. 50-238 February 28, 2006 E. Koehlcr\ek\02-28-2006 cc: MAR-600, 610 (rf, wc), 610.1, 610.2, 610.3, 610.4, 611 (pg, jw), 612, 613 MRG-7100, 7600 (fh), 7700 General Health Physics (J. Davis)

U.S. Army Humphreys Engineer Center (D. Breeden)

U.S. Department 400 Seventh Street, S.W.

of Transportation Washington, D.C. 20590 Maritime Administration Nuclear Ship SAVANNAH Minutes of the Annual Meeting of the Review and Audit Committee Covering Calendar Year 2005 James River Reserve Fleet Fort Eustis, Virginia December 15, 2005 License NS-1 Docket No. 50-238

. 7

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N/S SAVANNAH Review & Audit Committee CY 2005 Annual Meeting December 15, 2005 Minutes of the Calendar Year 2005 annual meeting of the Nuclear Ship SAVANNAH Review and Audit Committee, held at the James River Reserve Fleet on Wednesday, December 15, 2005.

I. MEMBERS PRESENT:

Erharc. Koehler*, Senior Technical Advisor /Committee Chair John Wiegand, Decommissioning Program Manager Greg Thornton, Facility Site Manager John ETavis*, General Health Physics, Inc. (rep USACE)

Fred Hoffmann*, James River Reserve Fleet Michael Buonopane, Volpe Centert Chris Zevitas, Volpe Center Guests present and participating in the meeting included John Osborne, a subcontractor for Sayres and Associates, Inc., and Bill Halloran of the Volpe Center II. AGENDA TOPICS See attachment 1 for the agenda and agenda topics.

III. WELCOME Mr. Koehler convened the meeting at 09:30 am. A quorum was present. The meeting was convened for the purpose of discussing those topics within the purview of the members present, and to support the annual reporting requirements to the NRC.

Section 3.6 of the NSS Technical Specifications (TS) requires the Review and Audit Committee to meet at least annually to review and discuss events of the preceding period. The committee last met on August 30, 2005 (to discuss Classification of the RPV), at the James River Reserve Fleet (JRRF), aboard the NS SAVANNAH. The minutes of that meeting were briefly reviewed without comment.

IV. DISCUSSION A. Significant Events of CY 2005:

Mr. Koehler opened the committee's discussion of significant events following an introduction of all present at the

• Denotes member required for quorum.

t U.S. :Dept of Trans; Research and Innovative Technology Admin; Volpe National Transportation Systems Center 1

N/S SAVANNAH Review & Audit Committee CY 20(05 Annual Meeting December 15, 2005 meeting. Mr. Koehler then identified the following significant events:

1. Decommissionilg Planning Activities In late 2004, MARAD accepted an unsolicited proposal submitted by WPI* to conduct a radiological and environmental characterization scoping survey of the ship. The physical work was performed onboard the ship in March and April 2005. The survey made two significant findings with respect to physical conditions on the ship.

First, the dose rates measured in proximity of the Reactor Pressure Vessel and Neutron Thermal Shield tank were much less than predicted by calculation (updated in 2003/2004 by WPI). Second, WPI discovered Primary Cooling water in both steam generator u-tube heat exchangers.

The initial response to the discovery of the primary system watert was to conduct a more detailed survey to quantify the quantity and location of remaining water.

The revised estimate indicates approximately 1,500 gals of Primary Cooling water in the lower head of the RPV, lower legs of the primary piping to the pressurizer and to/from each steam generator heat exchanger.

In response to the much lower RPV dose rates, MARkD determined to conduct physical sampling of the RPV outer wall, selected internals, and the Neutron Thermal Shield Tank, and develop actual radiological profile of the constituent materials. The sampling was accomplished in August 2005, by drilling a series of holes from the exterior circumference of the NTS tank through to the second interior thermal shield baffle. The collected sample material was removed from the ship and analyzed in accordance with Part 61 requirements. The draft results

• WPI previously held contracts with MARAD in 2002 thru 2004 to perform decommissioning planning and studies; develop emergency response plans and training programs; and oversee implementation of MARAD's SAVANNAH Emergency Radiological Assistance Team (SERAT).

t Previous reports since 1976 established the expected baseline - that all remaining primary system water was entrained in the Reactor Pressure Vessel lower head, below the lowermost primary leg nozzles. In the 30 years since, the shio has been subjected to normal movements caused by sea action, and list/trim adjustments made for towing and drydocking. Such movements are theorized to have caused the migration of water from the RPV lower head.

2

N/S SAVANNAH Review & Audit Committee CY 20015 Annual Meeting December 15, 2005 from this testing indicates that the RPV will be a CLASS A waste package.

The RPV sampling results and other items were presented to the NRC in a public meeting on Nov. 2 nd, 2005 as well as to each of the potential waste disposal sites (Barnwell and Envirocare of Utah) and their host states of Utah and South Carolina.

Other pre-decommissioning planning activities are described in the following paragraphs.

2. Oreanization In 2005, MARAD re-established the SAVANNAH Technical Staff (STS) as an organizational entity within the Office of Ship Operations. Erhard Koehler heads the STS and is supported by: John Wiegand, the Decommissioning Program Manager; and Cindy Bearor, Documentation Manager. We soon hope to welcome Greg Thornton permanently, as the Facility Site Manager. We have also asked the DOT Volpe Center to help us with some of our activities as is represented by their presence here today. We also anticipate that Argonne National Laboratory (DOE Facility) and US Merchant Marine Academy at Kings Point (Engineering Department) will also soon join us on the team.

3. License Activities MARAD completed its correction of conditions contributing to license violation 2001-201-01 in March 2005, and submitted a letter reply to NRC on March 18, 2005.

Further discussion of this item is in paragraph V.D of this report.

It is anticipated that we will dry-dock the ship during calendar year 2006 in preparation for upcoming decommissioning activities. The STS also plans to declare formally our intent to decommission in mid-year.

MARAD contracted with Sayres and Associates, Inc. to provide support in re-establishing MARAD's licensing support activities. Specifically they have been assisting with the Quality Assurance Program. They also conducted a regulatory self-assessment to determine our licensing base-line. This document will assist in setting the stage for the licensed operations preparatory 3

N/S SAVANNAH Review & Audit Committee CY 2005 Annual Meeting December 15, 2005 to our license amendment requesting permission to decommission the facility. Some preliminary changes will be submitted in early calendar year 2006 regarding cur organization changes in preparation for decommissioning.

4. Technical Specification Revisions Substantive revisions to the Technical Specifications are in development, and will be discussed further elsewhere.

B. JRRF Annual Activities:

Fred Hoffmann provided a brief review of JRRF activities regarding the NS SAVANNAH. These included:

• Routine scheduled maintenance onboard the ship.

• Response to alarms as they appear.

• The annual underwater hull survey was completed in March 2005.

• Hanging Anode System (fleet cathodic protection) is in working order.

o We will need to service the on-board system during dry-docking to ensure that it is in good working order when layberthed. Mr. Hoffmann suggested the possibility of welding more sacrificial anodes on the hull - (2) anodes forward on the bow and additional anodes on the rudder. These can be made available to use from the fleet. The JRRF will place a pallet of zinc anodes on deck prior to departure for dry-docking.

C. Radiological Surveillance and Monitoring John Davis indicated that quarterly radiological surveys indicated no noticeable changes to measured dose rates.

V. REVIEW OF TECHNICAL SPECIFICATION REQUIREMENTS In accordance with paragraph 3.6.3 of the TS, the Committee is specifically required to review the following items:

4

N/S SAVANNAH Review & Audit Committee CY 2005 Annual Meeting December 15, 2005 A. Proposed changes to Technical Specifications.

AI draft of proposed changes is still in development.

There has been a long-standing desire on the part of the committee membership to review and revise the TS. At this time the STS is contemplating a change in the staff organization as presented in the technical specifications in order to position the "license house" for decommissioning.

This change will replace the tech spec in whole to accommodate this organization change and allow for layberthing the ship alongside a pier. This is currently being referred to as an v'administrative amendment." The current planning schedule calls for a final document by the end of December 2005 i'author's note - the revised TS remains under development in February 2006).

B1. Proposed changes or modifications to the vessel's controlled radiation area entry alarm system or containment system.

• The reactor shield plug in way of the personnel air-lcck entrance way into the containment vessel (aft manway) was removed to support the characterization survey by WPI.

The plug is stowed adjacent to the manway.

• The committee discussed restoring the chain fall system to permit safe removal and replacement of the shield plug during pre-decommissioning activities. Further investigation will be made before deciding on a course of action.

• WPI restored ventilation to the Containment Vessel to carry out personnel access during characterization activities. The modified system uses the nitrogen purge piping for supply and exhaust. Supply air is provided from the ship's interior dehumidified air distribution ducting. The discharge of the ventilation cycle is through a HEPA filter located in the secondary containment. This system mimics the installed (disabled)

CV ventilation system, which was determined incapable of restoration at the time. The modified system was retained after the characterization activities were completed to facilitate periodic CV entries during pre-decommissioning.

5

N/S SAVANNAH Review & Audit Committee CY 200C5 Annual Meeting December 15, 2005 C. Substantive changes to radiation surveys or security surveillance procedures.

1. Radiation Surveys Based on the results of the Characterization Survey completed by WPI, a recommendation was made to reduce the scope of the routine monitoring and surveillance program by removing survey locations in cargo holds number 1, 2 and 3. No decision was made at the meeting.

2. Security Surveillance Procedures Routine security surveillance continued throughout CY 2005.

D. Reported violations of Technical Specifications No new TS violations were cited during the reporting period.

On March 18, 2005 MARAD submitted its letter reply to violation number 2001-201-01, noting that the conditions described (failure to have a health physicist on call within two hours of the ship and failure to have an Emergency Radiological Assistance team available) as a violation of TS Section 3.1 had been corrected. The NRC response noted the correction, and anticipates a future audit to validate the correction.

E. License Event Reports No LER's were noted during the reporting period.

F. Annual reports to the NRC The CY 2004 annual report was submitted to the NRC by letter dated March 4, 2005.

VI. OTHER TOPICS AL. Security Issues None were noted.

B. Funding A dedicated appropriation to fund SAVANNAH activities was approved by Congress and signed by the President in FY 2005.

The President's Budget request for FY 2006 continues to include SAVANNAH funding. At the time of the meeting, the FY 2006 Department of Transportation appropriations bills were 6

N/S SAVANNAH Review & Audit Committee CY 2005 Annual Meeting December 15, 2005 being reconciled in conference committee, and MARAD is operating on a Continuing Resolution.

C. Status of SERAT

• The SERAT Team conducted a training exercise and drill in January 2005. The team deployed to the ship.

• A table-top drill was conducted in March 2005. {Note:

this originally planned as a full drill, but reduced to table top drill due to weather. The completion of this drill was the last activity required to complete the correction of violation 2001-201-01 (see previous note).

• We are due for a drill in February - March 2006 time frame.

• Jefferson Labs (DOE facility) is funded through August 2006 to provide emergency radiological health physics coverage in support of MARAD and SERAT activities.

• The committee discussed the necessity to retain a SERAT capability once the ship shifts to layberth in 2006.

John Davis noted that if the layberth is Baltimore, he is within two-hours driving distance.

I}. Decommissioning No formal action on decommissioning was undertaken in CY 2005; however, substantial pre-decommissioning activities were undertaken as described herein. A decommissioning amendment request is anticipated in CY 2006.

E. License Amendment No license amendments were prepared or submitted during CY 2005. Two license amendments are under development for proposed submittal in CY 2006. The first will revise the TS, to include substantial revisions to the described MARAD organization, and to permit the ship to be berthed at a layberth (commercial pier) outside of the JRRF. The second amendment will combine the PSDAR and Decommissioning authorization request.

7

N/S SAVANNAH Review & Audit Committee CY 2005 Annual Meeting December 15, 2005 F. Independent Oversight Committee In the proposed Technical Specification revision, the Review and Audit Committee will be redefined to function as an independent oversight committee.

G. Status of RPV Waste Classification The preliminary review of the waste classification study based on drill sampling performed, indicates that the RPV as a package meets the criteria for CLASS A. This means that the nuclear waste may be disposed of either at Barnwell, SC or in the Envirocare of Utah site.

II. Other

1. Action Items

i. Volpe to take action on identifying DOE Points of Contact for other disposal sites.

8

GENERAL HEALTH PHYSICS, INC.

7217 LOCKPOTPL #203 LoRON VA 22079 703 550-7525, 1-800 247-6572 FAx: 703 550-7525 Februaiy 16, 2006 Mr Erhardt Koehler Division of Ship Maintenance & Repair U.S. Maritime Administration Washington DC 20590

Dear Sir:

Attached is the 2005 report for the NS Savannah. Two water activities are irregular, because of high dissolved solids in the sample. High dissolved solids result in a small sample volume. The samples are for the I st quarter part aft and 2nd quarter stb aft.

If you have any questions please feel free to contact me.

Sincerely yours, CHP President

V!E7S Savana[Zh Annual Suney Location uREM/hr Alpha dpm/100cm 2 Beta dpm/100 cm 2 NAVIGATION BRIDGE Pilot House at helm 3.0 13 mda Bridge Wing port side 3.0 mda mda Fire Stat. #1 near chart rm 2.0 mda mda Fan rm port side gen. rm 3.5 mda mda E.O.G. rm 4.0 mda mda BOAT D)ECK Chief Eng. State rm port side 3.5 mda mda Cpt. State rm starboard side 2.5 mda mda Fire Stat. #2 port side 3.0 mda mda Officer`s lounge aft 3.5 mda mda Hallway floor port side 3.0 mda mda Forward state rm starboard side 3.0 mda 42 Hallway floor forward center 3.5 mda mda PROMENADE DECK Top of reactor hatch 4.0 mda mda StarboEird side of reactor hatch 4.5 mda 56 Top of Hatch #4 3.5 mda mda Between Hatch #3 & #4 3.5 mda mda Bow center of deck 3.5 mda mda Center of Main Lounge 4.0 mda mda Center of Veranda 3.5 11 mda Fire Stat. #7 starboard side 3.0 mda mda Between Veranda & Swimming Pool 4.0 mda mda Library 3.5 mda mda Thursday, February 16, 2006 age I of 9 A1O6t) g7 4  ?

Location uREM/hr Alpha dpmllO00cm 2 Beta dpm/1lOO cm 2 Hallway in front of Main Lounge 3.0 mda mda Veranda port side forward 4.0 mda mda Bar at Veranda 4.5 mda mda REACTOR SPACE Hot pipe forward entry hatch 31 x x I meter forward of tab tank 15 x x At lab tank 33 x x Pipe elbow port side forward 50 x x

'Hot' pipe near entry hatch x mda mda Containment vessel middle of catwalk 15 mda mda Lab tank surface 7.5 mda 48 Open valve next to lab tank 10 x x Containment vessel middle of catwalk 8.0 x x Piping at the port side forward catw 9.5 x x Middle of catwalk port side 27 mda mda Piping at the port side middle of ca 19 mda mda Valve handle port side aft 12 x x Damp nrea on floor middle of catwalk 13 16 mda Containment vessel starboard side af 49 x x Inside entry hatch pipe x mda mda FAN ROOM At floor rm center 3.0 x x Electric motor 4.5 mda mda Control box 2.5 mda mda CABIN Bi B2 On drums of PC's in Cabin B-i 3.5 mda mda Averago reading of Cabin B-3 4.0 x x On floorof Cabin B-i x mda mda Drum lid in Cabin B-I x mda 52 III EIICIIEIIEIIVI Ir II E II E II VI I rl II VI ICIIV II VI I F1II C 1113 11V II E II r, II E II r, II r II E II E II E II Ell C II E II ICII E 1113 II C II ICII C II VI IC: II E I Thursday, February 16, 2006 Page 2 of 9

Location uREM/hr Alpha dprnllO0cm 2 Beta dpm/1lOO cm 2 STB3 STABILIZER RM At entrance door 3.0 x x Average background 4.5 x x Catwal Lower level x mda mda Catwalc Upper level x mda mda PORT STABILIZER RM At access hatch 3.0 x x At cat~alk upper level 8.0 x x At internally contaminated strainer 28 x x Diaphragm valve 32 x x Pipe to left of diaphragm valve 65 x x Internally contaminated valves x mda mda Control valve lower deck x mda mda Volume! Chambers x mda 46 Elbow diaphragm valve x mda mda STB CHARGING PUMP RM Outside hatch 3.5 x x Inside hatch 10 mda mda Center of floor x mda mda Pipe back of pump motor 60 mda mda Pipe in back of pump x mda mda Top of pump x mda mda Backside of pump x mda mda Center of floor 21 mda 39 Outside. of hatch x mda mda Air ducl at pump x mda mda Pump riotor x mda mda PORT CHARGING PUMP RM Outside. door 1m from deck 5.5 x x Betweei pumps 27 x x Thursday, February 16, 2006 Page 3 of 9

Locati'on uREM/hr Alpha dpmllO00cm 2 Beta dpm/1lOO cm 2 Deck at hatch x mda mda Acccess hatch x mda mda Deck by pumps x mda mda Floor between pumps x mda mda Pump in front of rm x mda mda x

COLD CHEM LAB Background in Cold Chem Lab 8 x x Ventilalion system/lead blanket 49 x x Drain (IDdeck) 240 x x Fume hood (D deck) 29 x x Top of storage tank 30 x x Air samnpler (D deck) 36 x x Floor under air sampler (D deck) 15 x x Ledge of fume hood 60 x x Floor ir front of ventilation system 11 x x Ventilaltion system 17 x x Ledge of fume hood (D deck) x mda mda Drain (C'deck) x mda mda Floor under air sampler (D deck) x mda mda Floor front of vent system (C deck) x mda mda Air Sampler (D deck) x mda mda Floor uinder fume hood x mda 58 Shelving (C deck) x mda mda Top of storage tank x mda mda Valve near floor (D deck) x mda mda HOT CHEM LAB Background in hot chemn lab 5.0 x x Waste collection tank I11 x x Sink 4.0 x x Doorway to hot chemn lab 3.5 x x Under sink 3.5 x x II 3IICIEIE II I CI. ICII10I1 III1,II C113IIV I 3 1 711C I17 I I II I rIICIIVII131 C 1 IIEl 113IIEIILII EIIC I V IC1 Thursday, February 16, 2006 Page 4 of 9

Location uREM/hr Alpha dpmllO0cm 2 Beta dpm/1lOO cm 2 Sink drain 8.0 mda mda Inside waste collection tank 6.0 mda mda Fume hood inside 3.5 mda mda Floor inside door 4.0 mda mda Intake for hood 2.5 mda mda CARGO HOLD 2B3 Floor s':arboard side forward 3.0 mda mda Floor st:arboard side center 3.0 mda mda Floor sltarboard side aft 3.0 mda mda Floor aft center 4.0 mda mda Floor part side aft 2.5 mda mda Floor p~rt side center 4.0 mda mda Floor p~rt side forward 3.5 mda mda Floor forward center 3.5 mda mda CARGO HOLD 2C 2.5 mda mda Floor part side center 3.0 mda mda Floor port side forward 3.5 mda mda Floor forward center 2.5 mda mda Floor slarboard side forward 2.5 mda 44 Floor slarboard side center 3.5 mda mda Floor slarboard side aft 3.5 mda mda Floor al't center 4.0 mda mda Floor port side aft 3.5 mda mda Floor 14, cargo hold 3.0 mda mda CARGC) HOLD 2D Starbocird aft 4.5 mda mda Starboard amidships left 2.5 mda mda StarboE'rd amidships right 3.0 mda' mda Starboard bow 3.0 mda mda Centerline bow 2.5 mda mda Thu rsday, February 16, 2006 Page 5 of 9

Location uREM/hr Alpha dpmll 00cm 2 Beta dpm/1lOO cm 2 Ports.I...e bow... .. .. ... . 3..0.... .. . .. .. . .. .. . .. . . . .. . . . .. .. . .. . . . .... .

Port side amishps3.0 mda mda Port side aftshps3.5 mda mda Centerline aft 2.5 mda mda Average 3.5 x x Maximum 4.5 x x 2 TANK, TOP Floor forward & starboard of sailboat 2.5 mda mda Floor sailboat center port side 3.0 8 mda Floor sailboat aft starboard 3.0 mda mda Floor sailboat center starboard 3.5 mda mda CARGO HOLD 38 At stairwell entering hold 3.5 mda mda Floor center forward 2.5 mda mda Floor s:arboard side forward 4.0 mda mda Floor starboard side center 3.0 mda mdda Floor s4arboard side aft 2.5 mda mda Floor canter aft 2.5 mda mda Floor port side aft 3.5 mda mda Floor at display center 2.5 mda mda Floor part side forward 2.5 mda mda Averag e 3.5 x x Maximum 4.0 x x CARGC) HOLD 3C Floor sltarboard side 3.0 mda mda Floor sltarboard center 2.5 mda mda At door starboard aft 3.0 mda mda Center aft vent 2.0 mda 38 Floor p~rt side aft 3.5 mda mda Floor port side center 3.5 mda mda Thursday, February 16, 2006 Page 6 of 9

Location uREM/hr Alpha dpmllO00cm 2 Beta dpm/1lOO cm 2 Floor starboard forward 3.0 mda mda Vent ccenter forward 3.0 mda mda Average 3.5 x x Maximum 3.0 x x CARGO HOLD 3D Floor port side forward 3.0 mda mda Floor port aft 3.5 mda mda Floor center aft 3.0 mda mda Floor sltarboard aft 2.5 mda 46 Floor sltarboard forward 3.5 mda mda Floor forward center 2.5 mda mda CARGO HOLD 4B3 Men's restrm 3.0 mda mda Floor port side center 3.5 mda mda Floor by door to 3B3 port side 2.5 mda mda Floor b:, handrail port side 3.5 mda mda Floor by handrail starboard side for 4.0 14 mda Floor by handrail starboard side cen 3.5 mda mda Floor by handrail starboard side aft 3.0 mda mda CARGO HOLD 4C Port side aft 4.0 x x Centerline aft 11 x x Starboard side aft 3.5 x x Max. reading along stern bulkhead 16 x x Floor at aft center (@Max. Reading) 4.5 mda mda Starboard forward floor 4.0 mda mda CARGO HOLD 4D Floor at stem bulkhead 3.5 mda mda Floor starboard side 3.0 mda mda HIM IIClIE IIEl IC lir IIci IIS,IIC] Irl IIVI ICIIVI IV.II171111. Ila lit!IIVI Ir IIINIIr II11IIMI ICIIIN, IIElIcIlEllm II InII 13II CIICl ICIICIIE IIa I Thursday, February 16, 2006 Page 7 of 9

Location uREM/hr Alpha dpmllO00cm 2 Beta dpm/1lOO cm 2 Under barrier rope 3.5 8 mda Floor sltarboard side forward 2.5 mda mda Floor port side forward 3.0 mda mda Floor port side center 4.0 mda mda Floor pr~rt side aft 3.0 mda mda 4 TANK TOP At laddear entering hold forward 3.5 mda mda CylindrIcal equipment on floor forwa 2.5 mda mda Cylindrical equipment-center of hold 3.0 x x Averag3 background 3.0 x x At wall port side aft 2.5 x x Platform center aft 3.0 x x Platform starboard side aft 3.5 x x At wall starboard side aft 3.0 x x Cylindrical equipment on floor forwa 3.5 mda mda Floor slarboard side forward 2.5 mda mda Floor slarboard side center 3.0 mda mda FLoor starboard side aft 3.5 mda mda Floor slarboard side aft 3.5 mda mda Wall center aft 3.5 mda mda Floor port side aft 2.5 mda 56 Floor port side center 3.0 mda. mda Floor port side forward 3.0 mda mda x-- No measurement required MDA for alpha = 6.5 dpm/100 cm2 MDA for beta =35.0 dpm/100cm2 Thursday, February 16, 2006 Page 8 of 9

Tid Exposure(2005)

Badge Nuimber 1st Half(MR) 2nd Half (MR) Total (nmR) o are 29 29 58 I are 38 32 70 2 are 23 25 48 3 are 23 26 49 4 are 25 27 52 5 are 23 29 51 6 are 23 25 48 7 are 22 24 46 8are 26 27 53 9 are 23 25 48 10 are 23 24 47 11 are 24 25 49 12 are 20 22 42 13 are 21 19 38 14 are 21 24 45 15 are 22 24 46 16 are 21 24 45 17 are 37 33 70 18 are 28 26 54 19 are 21 23 44 20 are 25 25 50 21 are 20 19 39 22 are 32 34 66 23 are 21 23 44 24 are 21 22 43 25 are 19 22 41 26 are 22 25 47 27 are 15 24 48 I t r sd, y, . e br uar y 16, 2 Iii . , . . . . .. . . . . . II - - . ... . . .. C . - . g eIIo .f. . 2.

Thursday,; F'ehruaryI6, 2006 -!izf' Page I of 2

Bad4,ge Number Ist Half (nR) 2nd Half(MR) Total (mR) 28 are 21 21 42 29 are 20 23 43 30 are 23 22 45 31 are 18 20 38 32 are 19 1s 37 33 are 18 20 38 Tihursil.ty, Februiary16, 2006 Page 2 of 2

Water Activity 2005 Fieldl Field2 Field3 Field4 FieldS Field6 Quarter Location Alpha(pCi/l) Alpha LLD Beta(pCiA) Beta LLD 1st Port Fwd 24.66+1-1937 73.87 164.3+/-36.46 71.17 Port Aft <LLD 5.7 11.54+/-3.66 7.76 2nd Stb Fwd <LLD 2.7 10.08+1-1.95 3.53 Stb Aft <LLD 73.88 <LID 68.92 3rd Port Fwd <LID 2.94 6.91+1-1.78 3.55 Port Aft <LLD 3.67 <LLD 5.21 4th Stb Fwd 3.06+/-1.1 2.86 <LLD 3.63 Stb Aft <LLD 2.86 8.97+/-1.89 3.53 Page! of 1

1. Name?

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Sediment Activity 2005 Field Fied2 Fied3 Field4 FieldM Field6 Quarter Location Alpha(pCi/gr) Alpha LLD Beta(pCi/gr) Beta LLD

)st PortFwd <LLD 3.01 8.61+1-1.40 2.7 Port Aft <LLD 2.98 9.11+/-1.43 2.71 2nd Stb Fwd <LLD 3.01 6.45+/-1.29 2.70 Stb Aft <LLD 2.95 6.40+/-1.30 2.69 3rd Port Fwd <LLD 2.84 7.8+1-1.37 2.71 Port Aft 3.70+/-1.88 3.67 10.88+/-1.34 2.70 4th Stb Fwd <LLD 3.01 7.29+/-1.31 2.71 Stb Afl <LLD 3.01 6.15+/-1.28 2.70 Thursday. February 16, 2006 Page I of I