10 CFR 50.71(e) - Maritime Administration - U.S. Department of ...

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Updated Final Safety Analysis Report - (STS-004-002)Table 13-1 Non-Radiological Area SummaryDeck/compartmentsNo. of areasevaluatedDose rate foundContamination foundNavigation Bridge Deck 8 Background All < backgroundBoat Deck 10 Background All < backgroundPromenade Deck 2 Background All < background“A” Deck 20 Background All < background“B” Deck 44 Background All < background“C” Deck 31 Background All < background“D” Deck 11 Background All < backgroundWeather Deck (“A” Deck) fwdand aft15 Background All < background14’ Flat Deck 5 Background All < backgroundHold Deck 6 38 μR/hour* All < backgroundCargo Hold Number 4 (aft) 5 250 μR/hour** All < backgroundMachinery Casing, boat to “C”Deck4 Background All < backgroundEngine and Control Rooms 8 Background All < backgroundHold Number 5, engineering space 2 Background All < background* Hold Deck had a pipe running under the deck plate in the passageway that read 38 μR/hour oncontact. This pipe ran through a portion of the crossover area also. The pipe is for theequipment drain and waste collection (PD) system. Lower dose rates were recorded at variousareas of the passageway above the deck plates.** Hold Number 4, “D” Deck Starboard, had readings on the aft bulkhead up to 250 μR/hour. Thisappears to be shine from the Cold Water Chemistry Lab, upper level [originally the RadiationMonitoring Room (C-deck level, forward of the reactor compartment Frames 99- 102)].13.1.4 Radiological AreasTable 13-2 provides a summary of radiological condition found during the evaluation of radiologicalareas excluding the containment vessel and the reactor compartment. The values listed aremaximums.Table 13-2 Radiological Area SummaryDeck/compartmentsDose ratefoundHot Chemistry Lab, “D” deck off of the control room Background < 1000Contaminationfound(dpm/100cm 2 )Rev. VI 136
Deck/compartmentsUpdated Final Safety Analysis Report - (STS-004-002)Dose ratefoundContaminationfound(dpm/100cm 2 )Port Forward Stabilizer Room, upper level off of 14’ flat 8 μR/hour All < backgroundPort Forward Stabilizer Room, lower level 150 μR/hour All < backgroundFan Room “B” Deck, starboard side Background All < backgroundStateroom B-1 (radiological waste storage) Background All < backgroundCold Water Chemistry Lab, upper level (originallyRadiation Monitoring Room, C-deck level)Cold Water Chemistry Lab, lower level (originallyRadiation Sampling Room, D-deck level)50 μR/hour All < background2000 μR/hour Max 3904Hold #4, “D” Deck, starboard 250 μR/hour All < backgroundBuffer Seal Charge Pump Rooms, port and starboard 180 μR/hour All < backgroundHealth Physics Lab., “A” Deck (originally OperatingRoom and Dispensary)Hold Deck, outside containment, port-to-starboardcrossover passageHold Deck, outside containment, port and starboardpassages5 μR/hour Max 122125 μR/hour All < background38 μR/hour All < background13.1.5 Reactor Compartment (Secondary Containment)As described in Chapter 4.3, the reactor compartment surrounds the containment vessel and forms asecondary containment around the containment vessel. Table 13-3 summarizes radiologicalconditions found during the evaluation of the reactor compartment. The lower level of the reactorcompartment was sometimes called the secondary shield area because it was an “area” (i.e., volume)enclosed by the secondary shield.Table 13-3 Reactor Compartment Radiological SummaryDeck/compartments Dose rate found Contaminationfound (dpm/100cm 2 )“B” Deck, access area aft of reactor Background All < background“B” Deck, area forward of reactor Background All < background“C” Deck forward, access from “B” deck Background All < background“A” Deck around cupola Background All < backgroundTop of Cupola 4 μR/hour All < backgroundRev. VI 137
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10 CFR 50.71(e) - Maritime Administration - U.S. Department of ...

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