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Forwards 710225 & 0312 memos covering 710223 meeting w/util on plant dome & 710224 Tech Spec meeting attended by LM Varela & RC Lewis.

Accession Number: ML19289B371

Date Released: Saturday, November 7, 2020

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• ML20084K399 - Forwards rept re cracking of concrete in spherical section of containment dome during tendon tensioning operation on plant containment structure. (3 page(s), 8/11/1970)
• ML20084K214 - Forwards Div of Compliance justification for position re necessity to pull at least six tendons from containment dome & minutes from Task Force 710209 meeting. (3 page(s), 2/11/1971)
• ML20084K380 - Forwards viewgraphs used by Div of Compliance at ACRS Aug meeting re review of piping sys stresses & installation. (21 page(s), 8/19/1970)
• ML20084K114 - Forwards LD Low 710212 memo & Div of Compliance recommendation re tendon insp in accordance w/S Hanauer 710219 memo. (1 page(s), 2/19/1971)
• ML20084K373 - Forwards rept on cracking of containment concrete.Initially reported by 700810 telcon. (4 page(s), 8/20/1970)
• ML20084K192 - Discusses conversation w/util re AEC concerns w/repair procedure of containment dome.Meeting should be established to discuss two alternatives Task Force suggested.Concrete not to be placed until matter resolved w/AEC & ACRS. (1 page(s), 2/11/1971)
• ML20084K131 - Forwards util incident rept dtd 720215,per recent conversation.W/o rept. (1 page(s), 2/16/1972)
• ML20084K353 - Forwards summary of 700916 meeting w/util & Bechtel in Bethesda,MD re facility containment dome. (1 page(s), 10/2/1970)
• ML20084K106 - Inquiry Memo re 710219 inquiry as to current status of repair effort of plant containment dome.Dome failure investigation & repair effort approx 90% completed w/effort continuing on preparation of concrete surface. (2 page(s), 2/19/1971)
• ML20084K081 - Forwards draft Div of Reactor Stds "Proposed Insp & Test Programs Turkey Point Containment," revised in accordance w/Task Force 710209 meeting.Div of Compliance 710212 recommendations also encl. (2 page(s), 2/19/1971)
• ML20084K340 - Forwards rept re current status of investigations of cracking of prestressed concrete containment structure. Preliminary info forwarded on 700820. (3 page(s), 10/26/1970)
• ML20084K242 - Forwards rept describing concrete placement program for containment dome scheduled for Feb 1971.W/o rept. (1 page(s), 1/25/1971)
• ML20084K359 - Forwards, "Exam & Evaluation of Concrete Taken From Containment Dome of Florida Power & Light,Turkey Point 3, Reactor," final rept.W/o encl. (2 page(s), 9/15/1970)
• ML20084K268 - Forwards rept of 710120 visit to plant re observations of dome on containment vessel. (1 page(s), 1/27/1971)
• ML20084K348 - Forwards rept re current status of investigations of cracking of prestressed concrete containment structure at facility.Preliminary info forwarded on 700811. (3 page(s), 10/12/1970)
• ML20084K367 - Summary of 700824 & 25 meeting w/US Army Const Research Lab in Champaign,IL re facts on concrete failure of dome.AEC did not intend for lab to investigate structural adequacy of design. (2 page(s), 9/8/1970)
• ML20084K394 - Expresses appreciation for pictures taken by Region II re containment concrete problem,received prior to ACRS meeting.Picture quality excellent. (1 page(s), 8/17/1970)
• ML20084K256 - Forwards Assist Insp Rept on 710113-14,conducted to assist in exam of North-South meridional joint for evidence of voids in region of expanded metal.No voids,cracks or poor concrete noted. (2 page(s), 1/21/1971)
• ML20084K347 - Advises that JCAE informed on 701008 of status of investigations into concrete cracking problem in containment dome at facility,contained in 701009 rept. (1 page(s), 10/12/1970)
• ML20084K317 - Forwards "Preliminary Draft of Containment Dome Rept." Supplemental rept will be submitted after completion of concrete removal work.Readings of added instrumentation will be included in proof test rept. (1 page(s), 12/11/1970)
• ML20084K974 - "Div of Compliance Monthly Rept,Jan 1971." (1 page(s), 1/31/1971)
• ML20084K332 - "Div of Compliance Monthly Rept,Nov 1970." (1 page(s), 11/30/1970)
• ML20084K294 - Forwards rept re containment dome.Concrete placement scheduled for 710210 & completion of post-tensioning will be two months thereafter.Proof test will be conducted after completion of final const step.W/o rept. (1 page(s), 12/23/1970)
• ML20084K250 - Summary of 710114 meeting w/util & Bechtel in Gaithersburg, MD re plant dome.Resolution of questions concerning adequacy of repair,test & surveillance requires immediate attention. (3 page(s), 1/18/1971)
• ML20084K387 - Lists ACRS comments following presentation by LL Beratan re cracking of plant concrete dome.Split cylinder tests for tensile strengh should be requested if concrete cylinders available. (1 page(s), 8/17/1970)
• ML20084K065 - Advises of conversation w/J Varela at plant site re containment dome tendon exam.Following four days of insp,one tendon completely examined. (1 page(s), 5/6/1971)
• ML20084K152 - Confirms 710203 & 04 discussions re repair of containment dome.Total number of damaged wires cannot be determined until all wires examined in damaged areas.Comments by Technical Support Branch encl as 710201 memo. (1 page(s), 2/12/1971)
• ML20084K357 - Discusses current status of containment dome investigation. General reservations re adequacy of other plant containment bldgs noted due to lack of clues as to cause of failure. Further insps desirable. (1 page(s), 9/25/1970)
• ML20084K330 - Forwards summary of info required for evaluating adequacy of proposed repair re concrete cracking of containment dome,per 701202 telcon. (5 page(s), 12/4/1970)
• ML20084K073 - Informs that set of 21 slides which depict damage to dome at plant & seen at Feb ACRS meeting,being sent under separate cover. (1 page(s), 4/19/1971)
• ML20084K284 - Forwards JM Varela comments re licensee containment dome rept submitted to AEC on 701221.Concurs w/comments. (1 page(s), 1/13/1971)
• ML20084K327 - Advises of concern re licensee proposal to substitute Pennesuco aggregate for Oolite previously used in concrete for dome.Substitution requires approval from Directorate of Reactor Licensing. (1 page(s), 12/10/1970)
• ML20084K349 - Forwards interim rept, "Containment Dome Concrete Investigation." (1 page(s), 10/5/1970)
• ML20084K134 - Forwards Div of Reactor Stds latest rev of alternate insp & test programs for plant dome repair.Number of tendons to be removed in Alternative 2 not yet determined. Discussion before review w/applicant necessary. (1 page(s), 2/17/1971)
• ML20084K336 - Inquiry memo re 701102 telcon informing AEC of current status of investigation of containment dome concrete failure. (2 page(s), 11/3/1970)
• ML20084K343 - Forwards rept to Director of Regulation re facility. (1 page(s), 10/12/1970)
• ML20084K362 - Forwards L Beratan 700911 memo to JP O'Reilly re independent concrete analysis of util. (1 page(s), 9/14/1970)
• ML20084K145 - Forwards Div of Reactor Stds latest rev of alternative insp & test programs for plant dome repair.Number of tendons to be removed in Alternative 2 not yet determined.Discussion before review w/applicant necessary. (1 page(s), 2/17/1971)
• ML20084K377 - Discusses arrangements made w/US Army Const Engineering Research Lab at Champaign,IL re analysis of concrete samples from containment.Objective of exam of test samples of spalled concrete is to determine fracture cause. (2 page(s), 8/20/1970)
• ML20084K025 - Summarizes 710222-23 headquarters meeting w/util re reactor dome & removal of damaged tendons.Rebar w/damage not exceeding 1/4-inch indentations considered acceptable. (2 page(s), 2/25/1971)
• ML20084K036 - Summary of 710223 meeting w/util & Bechtel in Bethesda,MD re containment dome failure to establish degree of repair & surveillance of dome acceptable to AEC.Also summarizes 710224 Tech Spec meeting re unresolved items. (2 page(s), 3/12/1971)
• ML20084K086 - Draft, "Proposed Insp & Tech Programs Turkey Point Containment." (9 page(s), 2/15/1971)
• ML20084K092 - Confirms recommendation that requirement for removal of six tendons for exam be included in Alternate Position 2 of 710209 proposal.Details encl. (11 page(s), 2/12/1971)
• ML20084K158 - Comments & conclusions re licensee repair program of containment dome.No evidence of poor joint,cracks volds or weak bonding of concrete to expanded metal mesh.Further consideration warranted for proposed anchor bolt spacing. (2 page(s), 2/1/1971)
• ML20084K262 - IE insp rept on 710113-14.No voids,cracks or poor concrete noted.Insp conducted to examine North-South meridional joint for evidence of voids in region of expanded metal & other repair work pertinent to dome repair. (5 page(s), 1/21/1971)
• ML20084K275 - Trip rept of 710120 visit to plant re plans for replacement of dome concrete & review of specs for work.Concrete removal operation satisfactory. (3 page(s), 1/27/1971)
• ML20084K288 - Comments on containment dome rept submitted by util on 701221. (3 page(s), 1/12/1971)
• ML20084K323 - "Preliminary Draft of Containment Dome Rept." (59 page(s), 12/11/1970)
• ML20084K350 - Interim rept, "Containment Dome Concrete Investigation." (19 page(s), 10/2/1970)
• ML20084K355 - Summary of 700916 meeting w/util & Bechtel in Bethesda,MD re concrete failure of containment dome. (3 page(s), 9/30/1970)
• ML20084K365 - Summary of 700908 meeting w/US Army Const Research Lab in Champaign,IL re test data & preliminary rept on spalled concrete from containment dome.Final rept will be available prior to next ACRS meeting. (2 page(s), 9/11/1970)