Chernobyl Nuclear Accident Congressional Hearings Transcript

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51 EVENT DESCRIPTION SUMMARY AND STATUS 15 ON APRIL 26, 1986, AT APPROXIMATELY 1:23 AM, EXPLOSION(S) OCCURRED AT THE CHERNOBYL NUCLEAR POWER PLANT IN U.S.S.R. REACTOR HAD BEEN PREVIOUSLY OPERATING AT 7% POWER PRIMARY SYSTEM BOUNDARY FAILURE PROBABLY CAUSED BY OVERPRESSURIZATION DUE TO SUDDEN POWER INCREASE SUBSEQUENT HYDROGEN EXPLOSION(S) AND GRAPHITE FIRE DECAY HEAT PLUS HEAT FROM GRAPHITE FIRE PRODUCED TEMPERATURES SUFFICIENT TO MELT FUEL GRAPHITE FIRE HAS BURNED DOWN, SOME OR ALL OF MOLTEN CORE MATERIAL IS PROBABLY ON REACTOR CAVITY FLOOR CONCERN FOR MOLTEN CORE PENETRATION THRU SUPPRESSION POOL BASEMATS SOVIETS HAVE STATED THAT REACTOR IS STABILIZED AND ARE REPORTED FILLING SUPPRESSION POOL CAVITY WITH CONCRETE (WITH INTERNAL COOLING) AND INJECTING NITROGEN INTO CORE REGION THERE ARE MANY POSSIBLE SCENARIOS FOR CHERNOBYL THAT CAN LEAD TO THE DAMAGED CORE (BUT STILL DO NOT KNOW WHAT THE ACTUAL SEQUENCE OF EVENTS WAS)
52 16 SOURCES OF ENVIRONMENTAL DATA ELEVATED LEVELS OF RADIOACTIVITY DETECTED IN MORE THAN 10 COUNTRIES SWEDEN AND FINLAND PROVIDED ACTIVITY MEASUREMENTS AS A FUNCTION OF TIME BEGINNING SHORTLY AFTER THE ACCIDENT
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CHERNOBYL NUCLEAR ACCIDENT DOCUMENT
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About BACM Research - PaperlessArch
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days, so they left nearly everythin
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The 1986 Report of the U.S. Departm
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S. Hrg. 99-869 THE CHERNOBYL ACCIDE
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COMMITTEE ON ENERGY AND NATURAL RES
Page 16 and 17: BOSTON PUBLIC LIBRARY THE CHERNOBYL
Page 18 and 19: statement of Senator J. Bennett Joh
Page 20 and 21: We will contiue to work to make nuc
Page 22 and 23: . - the foreign reactor market that
Page 24 and 25: STATEMENT OF HON. HOWARD M. METZENB
Page 26 and 27: 11 with the wrong report. He came u
Page 28 and 29: 13 The residents of the state of Oh
Page 30 and 31: 15 Yes, I am not satisfied with eve
Page 32 and 33: 17 We accomplished our work by coll
Page 34 and 35: 19 Senator Metzenbaum. Mr. Chairman
Page 36 and 37: 21 The work of the Task Force was t
Page 38 and 39: 23 On May 3 the State Department se
Page 40 and 41: 25 The first elevated levels of rad
Page 42 and 43: 27 8 Foreign data received suggeste
Page 44 and 45: 29 By way of comparison, you might
Page 46 and 47: 31 - 2 - around the world. In the i
Page 48 and 49: 33 4 - In addition to these meeting
Page 50 and 51: 35 - 6 radiological release mechani
Page 52: 37 DESCRIPTION OF THE CHERNOBYL SIT
Page 55 and 56: 40 SIX OPERATING PUMPS (8 PUMPS TOT
Page 57 and 58: 42 .'ill a* O > S 2s5Sg sxs.f 2-53
Page 61 and 62: 46 10 I. 3 c o u .>$ «o
Page 63 and 64: 48 12 H
Page 65: 50 14 SUPPRESSION POOL ARRANGEMENT
Page 69 and 70: 54 18 EXTRAPOLATION FACTORS (BACK T
Page 71 and 72: 56 20 FUTURE PLANS PREPARE REPORT I
Page 73 and 74: 58 The Department's Nuclear Safety
Page 75 and 76: 60 STATEMENT OF MARY L. WALKEK ASSI
Page 77 and 78: 62 to minimize and manage risks so
Page 79 and 80: 64 Third, the United States nuclear
Page 81 and 82: 66 The priority the Department plac
Page 83 and 84: 68 of the reactor core melted. Unli
Page 85 and 86: 70 Introduction As a member of the
Page 87 and 88: 72 questions concerning fuel behavi
Page 89 and 90: 74 While each of these areas are pa
Page 91 and 92: 76 promises to be able to demonstra
Page 93 and 94: 78 The Chairman. Thank you. Dr. Bun
Page 95 and 96: 80 The most important actions we ca
Page 97 and 98: 82 Nonetheless, I will try to recou
Page 99 and 100: 84 I doubt If I can today convert e
Page 101 and 102: 86 All of our eggs are In the baske
Page 103 and 104: 88 8 safety margins and more fall -
Page 105 and 106: 90 10 The existing emergency planni
Page 107 and 108: 92 12 Further, If we want to ensure
Page 109 and 110: 94 14 never survive the kind of pro
Page 111 and 112: 96 firmed, but at least suspected t
Page 113 and 114: The Chairman. If we were to 98 have
Page 115 and 116: 100 2 THE FACT OF THE MATTER IS, MR
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102 THE SOVIET UNION ALSO AGREED TH
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104 6 MR. CHAIRMAN, IT WILL DO US L
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106 12 tific developments. includin
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108 14 The participating States a^^
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no speculation in the press that it
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112 than the Soviet Union. They hav
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114 We find that as a glimmer that
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116 Mr. Denton. I don't have that a
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118 My next question is what is the
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120 Mr. Meyers. These are the Easte
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122 Los Anpeles Times, 5/22/86 Radi
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124 us trig au m ifistead of a u to
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126 have it go through a peer revie
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128 Mr. Meyers. Mr. Chairman, may I
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130 -2- The health assessment subgr
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— 132 and ask my questions. If he
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134 Mr. Denton. I do not think they
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136 Senator Melcher. To clarify you
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^ 138 human error then, leading to
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140 are 25 BWR units with Mark I co
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142 engineering safeguards for ther
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144 STATEMENT SUBMITTED FOR THE REC
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146 2 - Process Heat for the chemic
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. 148 - ^ THE HEAT IS TRANSPORTED B
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150 Senator Domenici. Mr. Taylor, w
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152 Of that, over the many, many ye
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154 statement to Senate Committee o
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. 156 have become vital and continu
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158 NRC and our industry to produce
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s" 160 on the facts and to ensure t
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. 162 the fuel elements and light w
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164 generations of RBMK designs to
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166 • Third, the design appears t
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168 and ramifications of flow and h
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— 170 Senator Domenici. Thank you
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172 Soon we will have seen a fivefo
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174 Testimony to the Energy and Nat
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176 o The June 1986 folder entitled
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178 Corporate Evaluations Evaluatio
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180 EVENT ANALYSIS AND INFORMATION
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182 accessible from remote terminal
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184 o INPO has also developed good
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186 Members of the full Board are l
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. 188 NATIONAL ACADEMY FOR NUCLEAR
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" 190 o In May and June of 1985, th
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192 identified during INPO evaluati
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194 increased awareness at all leve
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196 o Collective radiation exposure
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198 Establishment of these long-ter
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200 Senator Domenici. Thank you, ve
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202 STATEMENT SUBMITTED FOR THE REC
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. 204 -2- capacity, and has long be
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206 • 4- Temperature Stability Th
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208 In addition. It also appears th
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210 Senator Domenici. Thank you. Dr
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212 The billions of dollars per yea
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214 As a nuclear physicist who has
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216 industry and strong reaction fr
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218 -5- Nevertheless, despite our o
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220 Citizen groups are going to int
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] 222 -9- Footnotes and References
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224 THE BULLETIN OF THE ATOMIC SCIE
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226 clear power plants since 1975
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228 Jan Beyea, a physicist, is a se
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230 ... a filtered vent system coul
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232 It is possible that it will tak
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234 Senator Domenici. I appreciate
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APPENDIX Responses to Additional Co
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. . 239 A2 . As noted above, we wou
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241 QUESTION 1. Some people have sa
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243 QUESnON_l. (Continued) 3 - For
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245 QUESTION C.tt . What do we know
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247
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: 249 -S-Vi9S>-ftv\.S>6)N^>^ -^'S^V
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251 QUESTION 2. (Continued) - 2 - P
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253 fiU E S no N_2 . (Continued) -
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255 QUESTION 3 . Just to set the re
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257 QUESTION 5. If you were to choo
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259 2UEST|0N_5. (Continued; 3 - Fir
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261 SMilII2!!_Z- ^° "^ "°" ^^^^ ^
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263 SMilllO^l-^- You attended the I
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I A 265 QU E ST 1 N_ 1 , year ago,
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267 QUESTION 10. (Continued) 3 - in
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269 QUESTION 10. (Continued) - 5 Wi
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271 QUESTION 10. (Continued) - 7 su
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I 273 QUESTION 10. (Continued) - 9
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: i 275 QUESTION 11. (Continued) -
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277 QUESTION 12. (Continued) - 2 -
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279 QUESTION 1 2. (Continued) - 4 -
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281 UNITED STATES NUCLEAR REGULATOR
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283 g U E S T 1 N 13. What are the
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I 285 POST-HEARING QUESTIONS AND AN
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287 2 maintained current. Computer
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289 QUESTIONS FROM CHAIRMAN JAMES A
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297 -2- Answer 7 (continued): posse
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299 -2- Answer 8 (continued): The S
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301 -2- Answer 9 (continued): The f
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303 Answer 10 j. -- xu (continued):
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305 nUESTION FROM CHAIRMAN JAMES A.
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307 QUESTION FROM CHAIRMAN JAMES A.
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309 Answer 14 (continued); 2. Early
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311 Answer 15 (continued): verifica
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313 -2- Answer 16 (continued): Desi
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315 -2- Answer 17 (continued): forc
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317 POST-HEARING QUESTIONS AND ANSW
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319 2 b. By legislation, existing D
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321 Question 3: Has the DOE designe
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, 323 JAMU A. WeCLUW. OAHO. CHAMHAN
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PROF. DR. RUDOLF SCHULTEN Direklor
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327 Questions from Senator Wallop 1
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329 i-ooi trnl Electric Power Resea
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: 331 J. A. McClure -2- July 08, 19
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333 J, A. McClure -4- July 08, 1986
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.. 335 ES, TUESDAY. JUNE 3. 1986 NE
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337 INPO RESPONSES TO QUESTIONS BY
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339 Answer: INPO's strength is in i
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SAN 341 SENATE COMMITT-E ON F'-'fm;
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343 Answer There is wide participat
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S. Hrg. 102-765 EFFECTS OF THE ACCI
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,,0S10H PUBUC UBRWV- COMMITTEE ON E
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EFFECTS OF THE ACCIDENT AT THE CHER
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It is clear that the remaining RBMK
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the Federal prosecutor of the USSR
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With growing urgency, the Ukrainian
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We did check soil samples and radia
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11 the cancer registry data in gene
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13 we are medical investigators and
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15 standard of medical diagnostic a
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17 nobyl. An American-Ukrainian Med
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19 The temperatures, however, were
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21 down on the kind of horizontal p
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23 those who got, shall we say, bla
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25 Well, in the May 1992 issue of t
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27 people just haven't complained a
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29 — physicians that come in. Bec
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31 tumor registries together. There
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33 like on the 1st of January 1995
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35 Ukraine, and two in Lithuania. T
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37 the training of the operators, e
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39 issue. The directions that the w
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41 Further, there is no easy way of
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43 I thank you for your attention.
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45 • WERs that have not been turn
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47 thank you for convening this hea
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I am am 49 INTRODUCTION My name is
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1 . 51 The Ukrainian Ministry of He
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53 information on the actual doses
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55 First, it is well known that wit
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57 1) The U.S. Government should in
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59 Level of malignant tumors of Lym
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61 Level of Malignant Diseases amon
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63 The Level of non-malignant hemat
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65 The Children of Chornobyl Relief
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2 67 TB8TIMOHT Of rr«d K, MattlMT,
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pnxlucing ihere 69 Pan H 4. Public
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• , t ( (iiiiiii i M 71 P«n H ev
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73 TESTIMONY OF WLADIMIR WERTELECKY
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. 75 education. The same comprehens
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77 Should epidemics and other medic
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. 79 Massive psychological effects
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81 American-Ukrainian Medical Scien
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83 circumstances in Ukraine, there
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85 flep:acaBHa AyMa yKpaiHM Kojieri
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I I 87 C.KHOliA (DMKl'AHUI Mxl'AIlK
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89 MiHiCTepCTBO OXOpOKH 3flopoB'a P
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. 91 m XAPKIBCbKA OBflACHA AEP>«AB
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93 U.S. Senate Committee on Environ
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95 What Happened The Chernobyl acci
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97 -? 15 U) (0 < Figure 1. Estimate
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99 form lava.' This material ran th
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101 V) S O aċo V) (A « aQ. 3 W f
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103 Unit 4 of ChernoSvt A'PP after
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105 3 O) (0 £ Q. O o
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107 •M E Mr -n. 136 \sss .4U>-^
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109 Natural processas of decay have
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Ill Clean up actions should be take
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113 those involved in 1986 and part
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115 Prepared Statement of Murray Fe
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117 with those who are classified a
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119 economies. Economic chaos and h
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121 Table 1.—Operating Reactors i
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123 FORMULA FOR FUNDING American as
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125 their transition to a new forms
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127 Table 1.—Cost Estimate—Cont
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129 Nuclear Materlai;s Management U
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131 Weeks Seven and Eight—Prelimi
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133 Four sets dictation and transcr
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. Develop 135 Ukrainian entrepreneu
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137 be achieved during the first ph
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139 tion measures. As required, the
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141 and services. The laboratory wi
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143 The reactor vessel, primary shi
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145 • fixation, • restrictions
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147 environmental compartment to an
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149 In order to plan for and accomp
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151 4.1.2.2 Ground Water Contaminat
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— 153 should provide direction on
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— 155 relative sensitivity of the
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. . and . . they 157 ( Prepared Sta
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. . and 159 generator. The result i
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161 5 mln hectares of agricultural
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' 163 Not only Ukraine, but the who
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165 taking forceful steps to help c
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167 late seventies." ^° Although t
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169 actors; this information gap ma
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171 To encourage this implementatio
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173 production is solid fuels, eith
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175 the energy efficiency of the ec
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177 ' Because closing costs will in
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. May BOSTON PUBLIC LIBRARY ..Hopki
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BOSTON PUBLIC LIBRARY 9999 U^/ 0275
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. 'HE LEGACY OF CHORNOBYL 1986 TO 1
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COMMISSION ON SECURITY AND COOPERAT
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THE LEGACY OF CHORNOBYI^1986 TO 199
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— The Helsinki Commission is very
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and its Belarus but any single coun
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Over 10 years after the events, I c
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Mr. Smith. Thank you very much, Mr.
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— 11 If you look at standardized
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13 births. We find it difficult to
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15 leagues have made a long-term co
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17 7's commitment? Of the assistanc
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19 burg is not too far. Greographic
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21 Mr. Smith. Dr. Feshbach, can you
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23 One of the problems with the Int
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25 Mr. KuzMA. There's quite a large
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— 27 bombardment of low-level rad
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29 are proposals that Kyiv be procl
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31 good people there, everywhere, a
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33 Only one percent of the territor
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35 an extent possible the consequen
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37 up of the Consequences of the Ac
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39 Ukrainian people realized that t
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41 presses the brake pedal to slow
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43 The "Sarcophagus" facility was t
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45 8 Rivers and lakes in the vicini
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47 10 According to maximum estimati
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49 12 Immediately after the acciden
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51 14 experienced radiation doses t
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53 16 ECONOMIC CONSEQUENCES Over th
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55 18 LEGISLATION ON CHORNOBYL The
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57 20 children affected by the Cher
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59 22 - ensuring proper infrastruct
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61 24 private religious, non-profit
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63 26 environmental effects of radi
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65 STATEMENT BY ALEXANDER B. KUZMA
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67 uncontaminated. Two weeks ago, a
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69 towards other health concerns ex
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71 the enoimity of the task that li
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73 Testimony of Dt. Natalia Lakiza-
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75 About 5 mln people continue to l
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77 Changes in the childbearing func
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79 - a possible many-fold increase
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This is a U.S. Government publicati
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