ML20085G925

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Monthly Operating Rept for Dec 1969 for Saxton Nuclear Experimental Corp
ML20085G925
Person / Time
Site: Saxton File:GPU Nuclear icon.png
Issue date: 12/31/1968
From:
SAXTON NUCLEAR EXPERIMENTAL CORP.
To:
Shared Package
ML20083L048 List: ... further results
References
FOIA-91-17 NUDOCS 9110280080
Download: ML20085G925 (7)
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0:mrations P.epor_t for Decei,er 3969 b

1.

012:DaL The scheduled plant outage which was begun on October 18, 1960, vac continued throughout this report period. The major effort dur!.ng this period consicted of preparation of the n.ain coolant systen for inopertion and installation of the recirculation systan.

The reactor vocsc1 head bolts were cleaned and sandblasted for inspection by the 'Magnaglo" method.

An underwater television camera with a renote screen was used to inspect the reactor internals with limited succces.

The installation of the check valves in the safety injection systen uan caapicted on December 3 Work continued on the insta11ntion of the recirculation cyste piping both in the auxiliary conpartracnt and in the storace voll.

The recirculation pwaps ucre roccived on iite on Deccabar 31.

f2.angcc were installed on the preocurizer spray line to enable installation of new cackets on t.io proscurizer spray flanco. The pressurizer cafcLy valve raanifold,incorporatin; a loop scal,was installed and wolded to the proccurizer.

2 MP RIrmTAL P:tatA:.

I The Data Acquicition Sycten arrived on site and was installed in tho i

'!cstinghouco c;:perimental roun. A control panel was built for the new flux l

detectvr rystca being installed for Core III.

3.

OPO.ATICHAL TESTS Tne S!CO fire and eva::uation alanas were tested on Deca:ber 6,13, The monthly test of the radiation monitoring systus was canpleted on Deccaber 6 1

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S!!LC Operations Report for Deca-ber 1968..... //2 4.

MAI"Tm/J:0E The principal itms of mechanical maintenance during the month included preparation of the main coolant piping for inspection; rmoval and disassembly of the pressurizer safety valves; rotating the main coolant pump; cleaning and wire brushing the reactor vessel head and head bolt can; painting the head bolt can with primer; replacing the manway and handhole on the stem generator secondary side; repairing the fork lift truck; painting the component cooling heat exchanger; disasombling the charging system check valve for repairs; installing a new head on the sewage treatment plant chlorine pump; proccasing eignt drums of radioactive waste; water proofing and painting the insulation on the monitor tank and discharge tank piping; repairing the steam coils in the containment vessel inlet air handler; insulating the safety injection outdoor piping; replacing belts on the EIDF cxhaust fan; sandblasting the reactor vessel heat bolts; rotating the main coolant pump rotor manually; and lowering the instrument frame into the upper core barrel.

The major items of electrical and instrument maintenance included calibration of the monitor tank level indicators; replacing the GJi tube in the count room beta counter; calibration of the evaporator level controller; checking the specific gravity of the station service batteries; repairing the containment vessel labitron; repairing the containment vessel particulate filter feed alam circuit; repairing the chart drive on the start-up recorder; cleaning and recoating the containment vessel deweel; installing gaskets in the process instrumentation d/p cells and sealing the electrical penetrations on the l

pressure transmitters; repairing the 11gaid scintillation spectrometer timer circuit; calibration of the E.DF hydrogen analyrer; nogged ng the two source rance nuclear instrumentation channels; cleaning and repairing the regulating valvo on the EDF tank annulus bubbler; replacing the cadon vanes in the portable alpha monitor pump; and replacing electronic tubes in the radiation monitoring recorder amplifier.

l 5.

CHD4ISTRY 1

The main coolant system was in a cold shutdown condition throughout the entire month with the core transferred to the fuel storage rack. The main coolant was mixed with the storage voll water. A summary of the analyacs l

perfomed on the storage well during the month is given in the table below:

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Storace Ucil Samples Minimum Maxitmm pH at 25 0 5.10 5.39 Conductivity, umhos 5 89 6.72 Doron, ppa 1063 1898 Chlorides, ppn

<- 0.005, 4 0.005 Gross Deta Gamma (15 Min. Degassed) ue/cc 1.Olx10-> - 2.83x10-3 Tritium,ue/cc 1.10x10-2 1.20x10-2

SllEC Operations Report for Deecmber 1968

.... #3 A component cooling system sampic analyzed had a pli of 8.82 and conductivity of 1120 u-hos.

The chramate concentration was 435 ppa and the gross beta-garna activity was 1.49x10-5 ue/cc.

6.

RADIATIO'1 A' D UASTE DISPOSAL Radiation surveying consisted of routine plant surveys, C.V. during shutdown and materials shipnents.

The following maxiran radiation readings were takent location Radiation Reading C&A Daildine Maste Drum (baling machine) 1.7 mran/hr beta-ga:r.a Charging Pump (contact with cha:nber) 25 mrcrn/hr beta-garm Sample Room (door of sample panel) 1.2mrom/hrbota-camma Chcaical Inb Hot Sink (l" from drain) 4.7 mran/hr beta-gamma RUDF' Evaporator (under bottom) 12 nran/hr beta-garsa Evaporator (contact outside upper level) 7 nrm /hrbeta-gamma Drum Storage Area (at HRA fence) 5 0 mran/hr beta-gnmma

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Prhary Compartment (general upper level) 120 nrcrn/hr beta-ga'na Primar/ Compartment (contact MC pump volute) 1100 mran/hr beta-ga na Primary Ccepartment (S.O. bottom) 350 mram/hr beta-gama Primary Ccrnpartment (pressurizer bottan) 110 mran/hr bota-ga=a Primary Ccrnpartment (general lower level) 50 mrem /hr beta-garna Pri* nary Campartment (Rogen. HK) 300mrea/hrbeta-gamma Primary Compartment (Hon-Regen. HI) 10 mran/hr beta-gamma Auxiliary Equip. Compt. (S.C.H.X.)

6 mran/hr beta-garna Auxiliary Equip. Compt.

D.T. top) 10 mran/hr beta-gamma Auxiliary Equip. Compt.

D.T. bottcrn) 30 mran/hr beta-gamma Auxiliary Eq

p. Compt.

generallowerlevel) 3 mran/hr beta-gamma Reactor Dock water Icyc1 at grating) 600 mran/hr beta-gamma Reactor Deck waist level) 650 mran/hr beta-gama Roactor Deck storagewellrailing) 600 mran/hr beta-gama Instrument Frame 2500 mran/hr beta-sama ReactorVessel(defueled) 750mrom/hrbeta-gamma i

5::LC Operationo Report for Deem.ber 1968

..... #4 Contr.ination curveying consisted of routine plant sito curveys, surveys of materials chipped, tools, equipment and C.V. during shutdown. The cican areau ucre within the " Clean Arca" 11~.its.

The controlled arcan were j

generally within the " Clean Arca" limito. The controlled area van cleaned frequently to keep and/or to return it to the " Clean Area" limito.

The exclusion areas ucro cleaned periodically to ninimize the n'aount of cmcarable contamination.

The followinC contamination lovelo ucre observod

_Iccati on Contamination Readinr.

C&A Tui] ding Charging Pump Chamber 20400 d/m/nmear bota-gamma Charging Pump Chamber 4.10 d/m/sncar alpha Charging Room floor 693 d smear beta-gar.a Sample Roca Sink 00700 d smear bota-gamma Saaple Exan Sink 4 10 d, amcar alpha Sample Room Floor 554 d / smear beta-cara Chemical lab Hot Sink 777 d/m/cmcar beta-gn=.a Chenical lab liot Sink

<10d/m/smearalpha RitDP Shipping Room floor 4100 d/m/nmcar beta-gn=a C.V.

Operating Dock 5250 d/m/ smear beta-gar.a Operating Dock

<10d/m/cmearalpha ReactorDeck(head) 45.100 d /nmear beta-gama Reactor Deck (hcad) 4 10 d smear alpha Frimary Compartment (grating))

2890 d /cmearbeta-gamma Primar/- Campartment (grating

<.10d/m/cmearalpha Liquid and gaseous offluento from the SEC site for the month of Decc~ber, 1968, were as follows:

(Curie)

(Curie)

(Curie)

Effluent Activity Activity Activity Tyne This Month Year to Date Last Twelve Months Liquid 0.000255 0.009276 0.009276 Tritium 0.120000 7.689117 7.689117

  • Air, Xe 0.000507 18.598902 18 598902 Air, I-131 0.000000 0.000494 0.000494 Air, M.P.P.

0.000005 0.185989 0.185989

  • Contains a 0.193 curie correction for August 1968 l

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P SliEC Operations Report for j

Deerr.ber 1968..

  1. 5 Three barrels of wasto ucro dramed for temporary otorage. lio drums were chipped frcri the oito.

Radiation exposures for all SEC personnel as measured by film i

badges fer the month of llovember 1968 were a maximum of $25 mran with an average af 123 4 mrom.

Radiation exposures for all vici+.ing personnel as measured by film baasca for the month of liovcaber 1968 were a maximum of 46 mrea with an average of 1.5 mrom.

The averace radiation exposure for all personnel as measured by i

film badges for the month of liovember 1968 was 82 5 mraa.

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OPEPJsTING STATISTICS

}!ONTH DC D YEAR 1968 JWCIFAR UNIT H0!E YrAR TO DATE TDE CRITICAL NO, 0

281 823 HOURS CRITICAL HRS.

0 2,375.49 22,948.49 TDIES SCRA171ED (MAltUAL)

NO.

0 122 449

  • TDE SCRM71ED (INADVDtTANT)

NO.

0 11 42 TitERMAL PCNER GENERATION

} Nil 0

51,389.92 429,359.85 AVERAGE IURNUP

}MD/HTU 0

4,194.00 18,029 03 CONTROL R0D PmITIONS AT DiD OF HONTil AT MUILINtIUM POWUt OF 0

HWt MAIN COOLANT DORON PIH RODS 00T - INC}E 0

0 NO. 1 0

NO. 2 NO. 3 NO. 4 0

NO. 5 0

NO. 6 0

ELECTRICAL p?IIT MONTH YEAR TO DATE OROSS ODIERATION INH 0

9,149.8 72,426.3 l

STATION SERVICE FNH 94.75 2,957.50 15,173 40 STATION SERVICE 0

31.29 20.81 AVO. PLANT EFFICID;CY - }NH(e)/)MH(t) 0 17.00 16.07 AVG. GDIEPATION RUNNING ( 0 itRS) nt 0

4,451.85 3,461.11 PIANT IDAD FACTOR -

(AVO. GDJ. FOR }!ONTH/ PAX.14AD) 0 16.53 19.52 AUXILIARY STFJpt SUPPLY - NUCIEAll STFAM SUPPLIED BY REACTOR HRS.

0 2,108.65 19,259.74 IMDF EVAPORATOR OPERATION.

HRS.

196.5 856.46 7.414.86

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