ML20085H342

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Monthly Operating Rept for Feb 1965 for Saxton Nuclear Experimental Corp
ML20085H342
Person / Time
Site: Saxton File:GPU Nuclear icon.png
Issue date: 02/28/1965
From:
SAXTON NUCLEAR EXPERIMENTAL CORP.
To:
Shared Package
ML20083L048 List: ... further results
References
FOIA-91-17 NUDOCS 9110280242
Download: ML20085H342 (5)
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.. 5s F AXT0!J 'l"01?AR EXPDlIl4 ENTAL COTtp0P.ATION i Operau enn Hannrt for Februau 1963

1. OCIEML The scheduled plant outage which was begun on January 22, 1965 was ,

continued throughsut this report period.

! The major work effort during the month was directed toward the installation l of the supercritical technology test loop. The piping work is being done by the 1 National Valve Company of Pittsburgh, Pa. and the electrical work is being done by Electrical Associates, Inc. of Altoona, Pa. The work is being supervised by perconnel of the Westinghouse Nuclear Power Services Department, t

On February let the fuel shipping cask containing irradiated fuel rods

#101 (defect), #321 (defeet), #330, and #754 was removed from the containment vessel and retumed to the Westinghouse Post Irradiation Facility at Waltz Mill, Pa.

Daring the week of February 15th an inspection team assigned by the Savannah River Operations Office of the AEC made an inventory of the special nuclear material on hand at Saxton; reviewed the procedures for cocputing nuclear material consumed ard produced; and audited the Icase material records that are kept at Saxton. ,

2 EIP17tUJ22TAL PROGMH Several attempts were made to view the inner-most rods of the center fuel  ;

assembly in the core with a boroscope. Much difficulty was experienced in making the i o boroscope operable. The observations that were made showed the crud deposition on ,

! the rods to be as hesvy or heavier than that seen on the fuel rods of the 3x3 subassembly removed from the center of the fuel assembly. The inspection had to be halted when the light failed in the boroscope. Further inspections will be made wnen the work schedule permits.

3. OFERATDJG TESTS l

The radiation monitoring system circuits were tested on February 17th.

4. MAINTENANCE The principal items of mechanical maint.anance for the month included preparing the irradiated fuel shipping cask for return to Westinghouse Post Irradiation Facility; machining and lapping the seat ring arvi plug of valve HIC-23V; .

eler.ning the blowdown meter and installing a new disc in it; replacing the discs in severt.; of the valves aseccie.ted with the RWDF gas decay tanks; replacing the belts on the RWDF exhaust t.ir handler; enlarging the inside diameter of the lantern rings in the e.tuffing boxes of charging pump no.11 -repairing the. latch mechanism-cn the outor door of the containment vessel main access air lock; fabricating an underwater-sweeper and cienning the storage well floor; replacing a shear pin on the NWDT ec ar.: mixer; replacing the PMDF evaporator demister drain line with a largor one; insulating the RWDF evaporator level column; lapping the seat and disc of fas purification system letdown valve lIC-21V; and cleaning the boric acid fraa the stans of shut-off valves on instruments located inside the contairunent vessel. .

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The major ite:w of electrical maintenance included fabricating a ne'.

undere.'ater light for une during fuel handling; rsect;ering the preseurizer heater cables; replacing the 0.H. tube on the area radiation monitor being used in the containment vessel; cutting back the cable and traaking the cable connections to ,

the detector and the cable seals to tne enclosure for the detector in power range '

channel B; replacing a broken bushing on the drive bar of a line contactor on the inverter-diverter; cleaning and calibrating the service water flow toensuring instrument channel FIC-25; replacing a 0.H. tube on the area radiation monitor ElA-2 in the charging room; replacing the diaphragm in the vacuu~ breaker for Rh'DF gas compressor No.1; replacing the batteries in two " cutie pie" radiation survey meters; cleaning the control air pitot valve on the deaerator steara regulating valve; and replacint the high voltage transformer in the radiation monitor located in the health physics office.

$. C}EMISTRY The main coolant syPtan was it, v 1 sh".tdown condition throughout the month.

The shutbn cooling systta var operated to reove residual core heat. A summary of the analyses of samples taken fron the shutdown cooling syste during the month are Shutdown C Q li nq Systm Mininum Maxitmtm pH 6.15 6.33 Conf. activity, umhos 13.2 13.6 y Saun, ppm 727 747 Chlorides, ppm 0.010 0.010 Gross Beta-Gamma 15 Min. (degassed), ue/cc 0.176 0.702 An antlysi., of a saraple taken from the shutdown cooling system for gross centut activity gave a value of 0.078 uc/cc.

he gross radioactiv3 ty in the storage well water decreased fram a high of 1,61 x it.M uc/ce to 7.45 x 1r>-5 ue/cc during the month.

Daring the raonth an investigation was made of tritium concentration in the main coolant water. Tne taximum concentration detemined in the saraples analyzed was 0.592 ue/cc. A program in being developed for sample analysis to ensure that effluent is always within 10 CFR 20 limits and that personnel can not receive an excessive body burden of tritium in any on site activity. Our preliminary conclusion is.that there has been no excessive personnel exposure and that the large dilution of effluent by Saxton Steam Station condenser cooling water is adequate to maintain 10 CFR 20 s' 7dards.

6. RADIATION AND WASTE DISP 0 CAL Radiation surveying consisted of routine plant site surveys, C.V. during shutdown, fuel cask shipnent, waste drums for storage and shipment, teleflex wires upon removal for maintenance, and waste truck prior to leaving site. The following maximum readings were takent v

A:. t r.a . .>. . h up a r'. fo r r n ry 'm . . . . _,y inentio2 Radiation Headine.

heactor Dc :/. 6tur i nW.) 3$mrom/hrbeta-gawa  :

Reactor Dm ( t vam.ent port) 100 mrom/hr beta-gamma heactor Deck Scant m at ga. ting) 80 mram/hr beta-gamma heutor Deck (ams reach over storage rack) 210 mrem /hr beta-gama OperatingDeck(overstoragewell) 50 mrem /hrbeta-gamma Operating Deck (at storage well protective rope) 19 tram /nrbeta-gam 8 Primary compartment 70 rram/nr Octa-gana Prinary Compartnent M.C.

side -pump volute) )

pressurizer 18 mrm/nr beta-gamn.a Pricory Compartment side - steam generator) 14 mrem /hr beta samma i

Primary Compartment generalupperlevel) 20 mram/hr beta-gama Primary Compartment general lower level) 25 mrm/nr beta-gamma ,

Primary Compartment (contact - recen. HX) 90 mre/hr beta-graama Primary Compartment (contact - non-regen. HX) 60 mrom/hr beta-gamma Auxiliary) outlet Compartment (shutdown coolin6 pump 100mrum/hrbeta-gamma Auxiliary Compartment shutdown cooling HI) 60 mrem /nr beta-gama Auxiliary Compartment discharge tank - bottom) 1$0mram/hrbeta-gamma Auxiliary Compartment discharge tank - top) 35mrm/hrbeta-gamma Auxiliary Compartment (general - lower level) 10mram/nrbeta-gamma Rh*DF

.s Evaporator (underbottom) 90 mram/hr beta-gama Evaporator (contact outside upper level) 60mran/hrbeta-gama Drum Storage Area (at HRA fence) 6.5 mrem /hr beta-gama

  • lasteDrum(contact)

. 120 mrem /te beta-gama Waste Drum (meter) 10 mrem /hr beta-gama C&A Dui3dinn Chemical lab Hot Sink (1" from drain) 4.0mren/hrbeta-gamma >

Charging Pump (contact with chamber) 40 mrem /hr beta-gamma SampleRoom(atdoorofpanel) 3.5 mrem /hr beta-gama Sample Storage Dram (contact) 25 mrem /hr beta-gamma WasteDrum(balingmachine-contact) 13 mrem /hrbeta-gamma Contamination surveying consisted of routine plant site surveys, curveys of the C.V. during shutdown, fuel shipping cask prior to shipment, new fuel rods, waste drums for storage and miscellaneous equipment. The clean and controlled areas were generally uithin tne " Clean Area" limits with the exception of pemanent exclusion areas. All areas were cleaned periodically, within practical limitations, to minimize the amount of smearable contamination. The following contamination readings were takant Ineation Contamination Reading 15/DF Pump Room 258 d/m/ smear beta-gama V Evaporator Room 1110 d/m/eme tr beta-garaa Concentrates Room 291 d/m/mvar beta-gama L _ _ _ _ _ _ , _ _ _ . - ___._ _-.- -_--- -- ~ .. - - - _ - -

. p;1 Tr Iuntion Cont e.instion Hendt nc

@,Buildinr.

Charging Pump Chamber 63000 d/m/amear beta-grem

! Charging Room Floor 700 d/u/cmear beta-gamma l Sample Room Sink 440 d/m/amear beta-gm

. Seple Room Floor 110 d/m/sneter beta-gama

{ ursr.ics; hb Hot Sink 1350 d/m/cmear beta-garraa C . '. ,

Her.ncr Deck 345000 d/m/mnear beta-cama Aux 1Acry Campartment (lower icvel) 1790 d/m/cmear beta-gemma Primary Compartment (equipment) 31500 d/m/ smear beta-gamma Primary Conpartnent (floor) 6150 d/m/ smear beta-gama Operating Deck 568 d/m/ smear beta-gamma Storage Well Bridge 974 d/m/amear beta-gamma Liquid and gaseous effluents from the S!EC site for the month of February 1965 were as follows:

(Curie) (Curie) (Curie)

Effluent Activity Activity Activity v 7ype Thin Month

  • Year To Date het 12 Monn +M Liquid 0.001813 0.002643 0.014259 Air, Xe 2.215237 10.825648 48.056605 Air, I-131 0.000047 0.000266 0.000818 Air, H.F.P. 0.022152 0.108256 31.243305 Six barrels of vaste were drummed for temporary storage and thirty drums vert shipped from the site.

Radiation exposure for all personnel as measured by film badges for the month of January,1965 were a iAximum of 290 mrom with an average of 23 mrem.

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. .. e M T v 7 5 tt].;Ta retru-ry YI).h _1965 NUCIEAR , UNIT HONTH YTAR 70 DATE TIMES CRITICAL NO. 0 0 377 HOURS CRITICAL HRS. . 0 $14 4 H ,457 63 TI)15 SCRIJ22'; ()%L A;) NO. 0 1 17

  • ?!PIS SCPJJ2'ID (IllADVERTANT) NO. 0 0 25 THEFJil, POLIER ODiERATION HWH 0 9,497...- 187,763 44 A7Uu.CL mRWP WDgtU 0 454.$1 8,457.00 CONTROL RCD POSITIONS AT DiD OF HONTH AT H2UILIIIi1UH PNER OP O Wt 11:N CO.tIANT BORON __ 734 P!H RODS OUT - INCHES NO. 1 -

NO. 2 -

NO. 3 No. 4 NO. 5 No. 6 -

- f.IIcTaicAL utnT gon73 ytAR TO nATE GROSS ODIERATION HWH 0 1,595.00 31,202.00 STATION SE3VICE }MH 91.570 286.12 6,817.68 STATION SERVICE 5 - 12.20 21.85 AVO. PIANT EFFICIDiCY - HWH(e)/WH(t)  % 0 16.79 16.69 AVG. GENERATION HUNNING ( 0 HRS) NW 0 3,103.H 3,313.37 PIANT IDAD FACTOR -

(AVO. ODJ. POR MONTH / MAX. IDAD)  % 0 31.80 28.05 AUXILIARY STFAM SUPPLY - !!UcLFAR STFAM SUPPLIED BY RFJJT'.1, HRS. 0 514.00 8,56% E2 IMLF EVAPORATOR OP3J.'.:;N HRS. 0 0 u, :. .:. 00

  • RI}%RF.5: Mc oper:'.icn for tr.c uonth of Februt.ry due to the inattilttion c. the experica A.. sapercritical loop.

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