ML20216F389
| ML20216F389 | |
| Person / Time | |
|---|---|
| Site: | Waltz Mill |
| Issue date: | 04/15/1960 |
| From: | Kirkman R US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Mann M US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20216F225 | List:
|
| References | |
| FOIA-98-100 NUDOCS 9804170050 | |
| Download: ML20216F389 (5) | |
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PRIORlfY -> ,m TWX NR 215 FM ROBERT W KIRKMAN DIRECTOR INSPECTION DIVISION fhgCg ,
.USAEC NEW YORK OPERATIONS OFFICfE NEW YORX NY
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'TG NS AT9NIC ENERGY COMMISSION DIV 0F INSPECTION WASHINGTON 3 C ATTN BR M u MANN CMA ASST DIRECTOR FOR COMPLIANCE APRIL AS PER YOUR TELEPHONE REQUEST CMA INFORMATION OBTAINED DURING INITIAL INVESTIGATION OF WTR REACTOR CMA WALT 2 MILL CMA PENNSYLVANIA. FOLLOWS CLN REACTOR HAD BEEN OPERATING AT STEADY STATE OF FORTY MW WITH A PRIMARY COOLANT FLOW OF FIFTEEN THOUSAND GPM PD IN CONNECTION WITNge. ..e REspCEB. FLOW EXPERIMENTS CMA POWER LEVEL WAS CUT TO THIRTY NW AT ABOUT ,
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IN NORMAL REACTOR INSTRUMENTATION WAS,_ .-
(nu.J'EEEN c..- MUNDRED ON APRIL 3 PD ,
, gn9.yyy y SERVICE AND A CHAMBER CMA USED IN BUBBLE VOID EXPERIMENTS WAS" CONN P TO A ppSH RECORDER ON A BALCONY IN, THE REACTOR VAPOR CONTA}$ymni usu
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FUEL ELEMENT CHANNELS. ,PD
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TCf3 WERE NOT .BELIEVE3 TO GIVE g. CURATE j '
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SINCE NEAT TRANSFER CALCULATIONS SHOWEB T1 TAT'ACTUA$hTEMPERAY AGREE WITH THE FIRST ELEMENT PD M' >
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PAGE TWO AN OPERATOR CMA A SHIFT SUPERVISOR AND A. PRESSESKY CMA MGR OF SCIENTIFIC SUPPORT SECTION CMA WERE IN CONTROL ROOM PD M. SCHULTZ CMA WTR MGR CMA WAS IN REACTOR BLDG OVSERVING BRUSH RECORDINGS PD AT NINETEEN FIFTY HOURS PRIMARY FLOW REDUCTION STARTED PB AT.20"NhafREh;.
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~NOURS CMA PRIMART COOLANT VAS AT FIVE THOOSAND TWO RUNDRED'y$k j [
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GPM CMA POWER AT THIRTY MW PD FIRST ELEMENT TC"S A.VERAGED ONE HUNDRED,g EIGHTY EIGHT DEGREES FAHRENHEIT CMA SECOND ELEMENT AVERAGED TWO HUNDRED FITTY TWO DEGREES FAHRENHEIT PD AT TWENTY TWENTY HOURS POWER INCREASE 9 TO THIRTY SEVEN MW CMA THEN LEVELED OUT AT THIRTf FIVE MW PD FIRST ELEMENT TC"S TWO HUNDRED THREE BEGREE FAHRENHEIT PD SECOND ELEMENT TC"S TWO HUNDRED EIGHTY THREE DEGREE FAHRENHEIT PD PERTURBATIONS ON BRUSH RECORDER CORRESPONDED TO ONE HUNDRED FIFTY KW CMA SIMILAR TO FORMER REDUCED FLOW EXPERIMENTS PD AT TWENTY THIRTY $ FOUR HOURS CNA POWER INCREASED TO FORTY MW CMA FIRST ELEMENT TC"5 AT TWO HUNDRED "O ENDECIREE'F'ANRENNEIT CMA SECOND ELEMENT'ATERAGiBM"MI@MN 1 l WINETY'TWO DEGREE FAHRENHEIT PD BRUSH RECORDER PERTURBATIONS INCREA 3.
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~, $$11 NUNDRED, EW FOR SIX SECO !DS PB CONTROL ROOM;NEg g ,3 g 7,a 4 Y
7 LETEU RECO,RDER 3ROPPED R4PIBLY TO SEVENTEEN 'MW CM.A uF21'.ST'
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ER PB ~ AT TVENTT' THIRTY FIVE NDURS^CMA< AWTe POWES- l a, y.g . %w.w r a. pm . y g,M@g.t.- Wg ,
@FotTI'MW CMA AND NUMBER NINE ROD BROVE FULL OUT SCLW CONTEGL
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DN TCNED'To NUMBER EIGHT WHICH DROVE FULbeUT PD AT TWENTYJ7EIRTY'"
S!I HOURS CMA REACTOR 79P RADIATION MONITOR COMMENCED ALARMING PD. -
POWER 9AS NOV FORTY MW CMA FIRST ELEMENT TC's AT-TW#t h
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PAGE THREE #2 .3-FAHRENHEIT CMA SECOND ELEMENT AT TWO HUNDRED NINETY FIVE BEGREE FAHRENHEIT CMA BRUSH RECORDINGS INDICATED FIVE HUNDRED KW PERTURBATIONS
.PD REACTOR WAS CUT BACK TO FIFTEEN MW AND THEN AS ALL RABIATION/WGNITOE
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ALARMED.CMA THE REACTOR VAS' SCRAMMED P3 FOLL0VING TEcS044M.,0Eg ,
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. TION REQUEST'VAS SOUNDED OVER FEMCO'STSTEM P3 NEALTN PNYSICISTM CMA 3. WILLHOIT CMA REMAINED TO CONDUCT PRELIMINARY SURVEYS CONSISTING OF AIR SAMPLES CMA SMEAR SAMPLES AND DIRECT READINGS P3 RESULTS OF SOME DIRECT READINGS AS RECORDED AT AT TWENTY ONY HUNBRED ARE AS FOLLOWS CLN FIVE R/HR TWO METERS FROM HEAD TANK MONITOR FORTY MR/HR IN CONTROL ROOM ONE R/HR AT REACTOR TOP FOUR R/HR AT HEAD TANK EXCLUSION FENCE -
.FIRST ASSDBLT POINT WAS AT GUARD M9USE AT MAIN GATE SUTgE g Tg 9n 0F TWO HUNDRED MR/NR AT THIS POINT CMA ALL PERSONNEL PROCEEDED BT CAR 70' LICENSEE'S GUEST NGUSE PAREN SEUBERT HOUSE PAREN ABOUT ONE TNIRDMdd*
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. ME8ZABIAN M6USE PAREN A COUNTING.5% TION, WAS.h, ff[
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WERE NEGATIVE INDICATING. THAT' HIGH kEVELS. 47. RADIATI.0N RE985 .
AN ESTIMATED MAIIMUM TEN THOUSAND CURIES OF FISSION PRODUC TAINES IN ELEVATED EAD TANX P3 A EAD TANK GASEGUS MONIT03: WENT OFF j -
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,;,.. w *+4F4 p p,.7,g, i SCALE IMMEDIATELY FeLLeWING S, CRAM PB .y4UT., FIVE2NINUTES,1& Tete i;)p .
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PAGE FOUR.
WAS CHANGED ON THIS INSTRUMENT AND IN A SHORT TIME GASEQUS ACTIVITY RETURNES TO BACKGROUND COUNT PD LICENSEE"S EXTRAPOLATION OF THIS CHART ESTIMATED THAT ABOUT EIGHT HUNDRED CURIES OF GASEGUS ACTIVITY WAS RELEASED TO THE ATMOSPHERE IN THIS FIVE MINUTE INTERVAL PB THIS; CSA NOVEVER CNA IS AN ESTIMATE INASMUCH AS THIS MeNITOR WAS OFF SCALE FeR FIVE MINUTES PD IT IS DELIEVEB THAT ALL ACTIVITY RELEASED WAS ARGON CMA IENON AND KRYPTON GASES INASMUCH AS RECORDS OF ENVIRON-MENTALSURVEYS PAREN SOIL CMA WATER AND VEGETATION SAMPLES PAREN HAVE ALL DEEN NEGATIVE PB NUCLEAR SCIENCE AND ENGINEERING COMPANY PRESENTLY CONDUCTING SIMILAR ENVIRONMENTAL SURVEYS ON SITE AND IN SURROUNDING TOWiE OF MADISON CMA YUK 0N CMA AND NEW STANTON PD TELEPH0NED RESULTS OF THESE SURVEYS HAVE ALL DEEN NEGATIVE TO DATE PD MAJSRITY OF SURVEYS REPORTEDLY BEING CONDUCTED IN B0WN WIND DIRECTI4N WHICH WAS FROM NSRTHEAS AT APPRSIIMATELY THREE TO FIVE MILES PER HOUR CMA IN f-DRIZZLBif $" '
RAIN CMA. AT THE TIME 0F THE INCIDENT PB THERE WERE Ne $VEREIPOSURES Te PERSONNEL PD URINE AND BLett SAMPLES TAKEN ON ALL PERS4NS A'S'S9C'IATED WE l INCIDENT HAVE BEEN NEGATIVE PD CLEANUP SPERATIONS NAVE BEGUN hSENk
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SF ESTINATED FIVE TO TEN TH6USAND CURIES OF ACTIVITY /FReM TveiRUND 7
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. ~ .: _ . ; wkw: mig: .. - l FOR Y TN69SANs dALL9NS OF WATER HAS BEGUN USING IGN EXCHANGE ,RESNSl PDr AR FUEL IS BEING DISCHARGED To CANAL PD SUSPECTED fRUPTUREB;ELMENTg VILL BE EIANINED IN HST' CELLS PD THE SECGNb TC INSTRUMENTED NI,s REPSRTEBLY TIGHT IN THE GRID PLATE PD WE DELIEVE TNATTHIS IS A TYPE "
QUGTE A UNQUSTE INCIDENT DUE TO ONE PAREN OUR ESTIMATIeN OF LENGTH 0F TIM' E #F SHUTBOWN 0F ONE WEEK CMA TWO PAREN ESTIMATED RELEASE OF ACTIVITY AND THREE PAREN ESTIMATED COST GF DECONTAMINATIGN PD fv s..... f . .
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ARE BEING CONBUCTED IN OUR GPINION CMA UNLOABING AND C ,
a.co N AND NO IN A SATISTACTORY MANNER WITH NO SPREA ?.
MORE BETA f8LLOW GVEREXPSSURES TO PERSONNEL PD REF INSPECTISN JRR AND JRS .
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