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Category:CORRESPONDENCE-LETTERS
MONTHYEARML20195J1741988-11-29029 November 1988 Provides Supplemental Response to Violations Noted in Insp Rept 50-518/87-01.Corrective Actions:Completion of Procedure on Prescribing Preventive Maintenance Requirements Rescheduled for 890301 ML20151E7511988-07-14014 July 1988 Responds to NRC Re Violations Noted in Insp Repts 50-518/87-01 & 50-520/87-01.Corrective Actions:Reviewed Vendors Storage & Preventive Maint Instructions Against Tech Spec 01.00.15.14.03 & Revised Topical Rept TVA-TR75-1A ML20150B9001988-03-0101 March 1988 Forwards Insp Rept 50-518/87-01 on 871216-18 & Notice of Violation.Allegation Partially Substantiated.Problem Re Practice of Allowing Nuclear safety-related Equipment to Be Downgraded & Moved Out of Storage to Weather Revealed ML20215A1581986-12-0909 December 1986 Final FOIA Response to Request for Documents Re Welding,Mfg & Const Deficiencies Concerning Tdi.Forwards App E Documents.Documents Also Available in PDR ML20211K5531986-12-0303 December 1986 Partial Response to FOIA Request for Records from Vendor Insp Branch,Ie,Re Tdi.Documents Identified in App C Available in Pdr.Documents in App D Available in PDR Under FOIA Number 86-656 & Requester Name ML20205F7571986-08-0808 August 1986 Forwards Insp Repts 50-518/86-01 & 50-520/86-01 on 860717- 18.No Violations or Deviations Noted ML20206H8001986-06-0909 June 1986 Forwards Request for Addl Info Required to Complete Review of Site Stablilzation Plan.Site Visit Requested 2 Wks After Receipt of Response ML20138Q8301985-12-0303 December 1985 Further Response to FOIA Request for Records Re Voluntary or Required Redress of Sites Where Const Was Terminated, Including Crbr & Legal Analysis.Forwards App E Documents.App D & E Documents Available in Pdr.Photographs Also Available ML20133N7321985-10-24024 October 1985 Forwards Proposed Cancellation Plans for Plants Officially Canceled on 840829.Requests Withdrawal of CPPR-150,CPPR-152, CPPR-172 & CPPR-173.W/two Oversize Drawings ML18029A3981985-02-27027 February 1985 Responds to RM Diggs 850117 & 0211 Ltrs Re Determination of Fees for Const Extension Requests.Util Supports NRC Determination & Will Submit Fees ML20096F8471984-09-0505 September 1984 Forwards Motion to Terminate Appellate Jurisdiction.W/O Encl.Related Correspondence ML20093F0921984-05-22022 May 1984 Responds to NRC Re Violations Noted in IE Insp Repts 50-518/84-01 & 50-520/84-01.Corrective Actions:Matl & Equipment Will Be Maintained Per Requirement Documents & Permanent Structures Will Be Thoroughly Inspected Annually ML20090B3551984-05-22022 May 1984 Forwards Response to Unresolved Items in IE Insp Repts 50-518/84-01 & 50-520/84-01.Corrective Actions:Util Prepared Preventive Maint Document Establishing Guidance for Protection,Preservation & Periodic Insp of Matls ML20084R6521984-02-24024 February 1984 FOIA Request for Computer Printout from Sept 1980 to Present of Civil Penalty Info on 27 Listed Nuclear Facilities.Sample Format Encl ML20077G6661983-07-27027 July 1983 Part 21 Rept Re Circuit Breakers Mfg Between Nov 1981 & Feb 1982.Breakers Should Be Inspected for Broken Puffer Linkage Studs.Stud Identified as Part Number 192247A.List of Circuit Breakers for Nuclear Plants Encl ML20073S8591983-05-0505 May 1983 Forwards Details of Deferral Plans for Hartsville Nuclear Plant A. Yellow Creek Plan Submittal Delayed Until 830513 ML20071B9741983-02-24024 February 1983 Reiterates 830121 Request for CP Extension Until 870901 to Permit Final Decision Re Future of Nuclear Units Based on Load Growth/Demand.Deferral Plan Details to Be Submitted by 830506 ML20069Q3661982-11-30030 November 1982 Forwards Socioeconomic Monitoring & Mitigation Rept, & Const Employee Monitoring Errata Rept ML20065S3791982-10-26026 October 1982 Informs of Discussions Re Leasing Portions of Site to Lansdowne Steel & Iron Co for 10 Yrs.Description of Site Portions Under Consideration Encl.Cp for Sites Withdrawn ML20065F8371982-09-13013 September 1982 Forwards Response to NRC Re Violations Noted in IE Insp Repts 50-518/82-08 & 50-520/82-08.Corrective Actions:Qc Investigation Rept Written to Prevent Use of Protective Coatings & PVC Conduit Covered & Stored ML20069D5161982-09-10010 September 1982 Forwards Socioeconomic Monitoring & Mitigating Rept,Sept 1981 ML20055C0611982-08-0606 August 1982 Forwards Info Re QA for Deferred Plants,In Response to NRC .Possible Cancellation of Some Units Will Be Discussed at Future Meeting of TVA Board of Directors ML20062H7541982-07-16016 July 1982 Forwards IE Insp Repts 50-518/82-09,50-519/82-08, 50-520/82-09 & 50-521/82-08 on 820601-04 & 28-30.No Noncompliance Noted ML20054M2121982-06-29029 June 1982 Responds to Appeal Re Denial of FOIA Request for Documents Re Atlas Machine & Iron Works,Inc.Forwards Me Resner 811109 & 820113 Memos to File ML20054K1531982-06-23023 June 1982 Informs That Final Deficiency Repts for Listed Nonconformances Will Not Be Submitted Until Final Decision Is Made Re Const of Projects ML20055A1061982-06-17017 June 1982 Forwards IE Insp Repts 50-518/82-07,50-519/82-07, 50-520/82-07 & 50-521/82-07 on 820503-14 & 21-28.No Noncompliance Noted ML20054D6501982-02-19019 February 1982 Submits Final Response Re IE Bulletin 80-20, Failures of Westinghouse Type W-2 Spring Return to Neutral Control Switches. No Westinghouse Type Switches Used in Facilities ML20041C1091982-02-18018 February 1982 Forwards Hartsville Nuclear Plants Socioeconomic Monitoring & Mitigation Rept,Hnp SMR-10,810331, as Required by Cps. Continuing Info Will Be Provided on Semiannual Basis ML20040E8381982-01-0606 January 1982 Ack Receipt of IE Insp Repts 50-518/81-20,50-519/81-20, 50-520/81-20 & 50-521/81-20.Corrective Actions:Insp & Const Personnel Instructed to Begin Lightly Scarifying Layers on All Backfill ML20040C1361981-12-29029 December 1981 Responds to NRC 811117 Ltr Re Violations Noted in IE Insp Repts 50-518/81-18,50-519/81-18,50-520/81-18 & 50-521/81-18. Corrective Actions:Preventive Maint Requirements for RHR Pumps Will Be Performed Quarterly ML20039A2811981-12-0404 December 1981 Notifies That Environ Const Noise Monitoring Procedures Will Be Revised at Hartsville & Yellow Creek & Terminated at Phipps Bend.Changes Caused by Slowdown & Cessation of Const. Summary of Const Noise Monitoring Program History Encl ML20040C2651981-11-16016 November 1981 Submits Final Response to IE Bulletin 81-02,Suppl 1,re Potentially Deficient Valves.No Subj Valves Installed at Plants ML20010H3481981-08-14014 August 1981 Responds to IE Bulletin 80-20, Failures of Westinghouse Type W-2 Spring Return to Neutral Control Switches. No Subj Switches Have Been Identified at Facilities.Util Awaits Info from GE for Final Resolution.Next Response by 811030 ML20010A3291981-07-30030 July 1981 Forwards HNP SMR - 9, Socioeconomic Monitoring & Mitigation Rept for Apr-Sept 1980 ML20009G3291981-07-23023 July 1981 Submits Final Response to IE Bulletin 80-21,per NRC 801106 Ltr.Ge & Valve Vendors Indicate No safety-related Valves Have Parts Mfg by Malcolm Foundry Co,Inc ML20009E9871981-07-21021 July 1981 Advises That Planned Start of Excavation for Intake & Discharge in Cumberland River Will Be Delayed Until Aug 1982,per Attachment C of CP ML20009G1271981-07-15015 July 1981 Interim Deficiency Rept Re High Pressure Core Spray Component Wiring Discrepancies.Corrective Action Date for Hardware & Software Will Be 810730 Instead of 810630. Revised Vendor Drawings Have Not Been Received ML20009D9311981-07-0808 July 1981 Forwards Response to IE Bulletin 81-03, Flow Blockage of Cooling Water to Safety Sys Components by Corbicula Sp (Asiatic Clam) & Mytilus Sp (Mussel). ML20009D7321981-07-0808 July 1981 Responds to IE Bulletin 81-02, Failure of Gate Type Valves to Close Against Differential Pressure. No Deficient Valves Are Being Supplied for Use at Facility.Addl Rept Will Be Provided by 811016 ML20009G7571981-07-0606 July 1981 Responds to NRC 810604 Ltr Re Violations Noted in IE Insp Repts 50-518/81-08,50-519/81-08,50-520/81-08 & 50-521/81-08. Corrective Actions:Procedure Revised to Include Requirement for Writing Notification of Change Rept within Three Days ML20009A4881981-07-0202 July 1981 Forwards Info Re Implementation of NUREG-0313,Revision 1,in Response to NRC 810226 Ltr.Addl Info for Hartsville & Phipps Bend Will Be Provided in Respective FSARs Tentatively Scheduled for Sept 1983 Submittal ML20009D9461981-06-15015 June 1981 Submits Third Interim Response to IE Bulletin 80-20 Re Failure of Westinghouse W-2 Control Switches.Work Continuing W/Westinghouse on Resolution of Control Switches. GE Collecting Requested Info.Final Rept Ready by 810814 ML20004E9381981-05-27027 May 1981 Submits Second Interim Response to IE Bulletin 80-21, Valve Yokes Supplied by Malcolm Foundry Co,Inc. No Valves W/Vendor Parts Found at Plants.Final Rept,Including GE Input on NSSS Valves, Will Be Filed by 810731 ML20004E6281981-05-22022 May 1981 Responds to NRC 810114 Ltr Re Violations Noted in IE Insp Repts 50-518/80-24 & 50-520/80-24.Corrective Actions:Mods Will Be Enriched on Engineering Change Notifications to Improve Visual Identifications ML20126L0161981-05-22022 May 1981 Forwards Addl Info Re Flammability of Suspended Ceiling Tile in Control Rooms & Replacement Panels to Be Used at Browns Ferry.Interim Rept on Hartsville & Phipps Bend Sent 810114. Info Constitutes Final Response to ML20004E7121981-05-22022 May 1981 Forwards Final Supplemental Response to NRC 810114 Ltr Re Violations Noted in IE Insp Repts 50-518/80-24 & 50-520/80-24.Corrective Actions:Mod to Be Encircled on ECN to Improve Visual Identification of Affected Change Areas ML19346A1151981-05-15015 May 1981 Responds to NRC 810320 Ltr Re Violations Noted in IE Insp Repts 50-518/81-04,50-519/81-04,50-520/81-04 & 50-521/81-04. Corrective Actions:Qcirs Will Be Reviewed & Upgraded as Required & Audit Will Be Conducted by QA Unit ML19346A1161981-04-17017 April 1981 Responds to NRC 810320 Ltr Re Violations Noted in IE Insp Repts 50-518/81-04,50-519/81-04,50-520/81-04 & 50-521/81-04. Corrective Actions:Welders Restricted to Limits of Qualifications ML19347E0911981-04-0303 April 1981 Forwards Justification for Delay in Meeting 821001 Date for Having Operational Upgraded Emergency Response Facility,As Required by Item III.A.1.2 of NUREG-0737.Response for Hartsville & Phipps Bend Will Be Provided by 811009 ML19347E0051981-04-0101 April 1981 Forwards Response to IE Bulletin 80-23, Failures of Solenoid Valves Mfg by Valcor Engineering Corp. Valcor Valves Cited in Bulletin Are Not in Use at Plants 1988-07-14
[Table view] Category:INCOMING CORRESPONDENCE
MONTHYEARML20195J1741988-11-29029 November 1988 Provides Supplemental Response to Violations Noted in Insp Rept 50-518/87-01.Corrective Actions:Completion of Procedure on Prescribing Preventive Maintenance Requirements Rescheduled for 890301 ML20151E7511988-07-14014 July 1988 Responds to NRC Re Violations Noted in Insp Repts 50-518/87-01 & 50-520/87-01.Corrective Actions:Reviewed Vendors Storage & Preventive Maint Instructions Against Tech Spec 01.00.15.14.03 & Revised Topical Rept TVA-TR75-1A ML20133N7321985-10-24024 October 1985 Forwards Proposed Cancellation Plans for Plants Officially Canceled on 840829.Requests Withdrawal of CPPR-150,CPPR-152, CPPR-172 & CPPR-173.W/two Oversize Drawings ML18029A3981985-02-27027 February 1985 Responds to RM Diggs 850117 & 0211 Ltrs Re Determination of Fees for Const Extension Requests.Util Supports NRC Determination & Will Submit Fees ML20096F8471984-09-0505 September 1984 Forwards Motion to Terminate Appellate Jurisdiction.W/O Encl.Related Correspondence ML20093F0921984-05-22022 May 1984 Responds to NRC Re Violations Noted in IE Insp Repts 50-518/84-01 & 50-520/84-01.Corrective Actions:Matl & Equipment Will Be Maintained Per Requirement Documents & Permanent Structures Will Be Thoroughly Inspected Annually ML20090B3551984-05-22022 May 1984 Forwards Response to Unresolved Items in IE Insp Repts 50-518/84-01 & 50-520/84-01.Corrective Actions:Util Prepared Preventive Maint Document Establishing Guidance for Protection,Preservation & Periodic Insp of Matls ML20084R6521984-02-24024 February 1984 FOIA Request for Computer Printout from Sept 1980 to Present of Civil Penalty Info on 27 Listed Nuclear Facilities.Sample Format Encl ML20073S8591983-05-0505 May 1983 Forwards Details of Deferral Plans for Hartsville Nuclear Plant A. Yellow Creek Plan Submittal Delayed Until 830513 ML20071B9741983-02-24024 February 1983 Reiterates 830121 Request for CP Extension Until 870901 to Permit Final Decision Re Future of Nuclear Units Based on Load Growth/Demand.Deferral Plan Details to Be Submitted by 830506 ML20069Q3661982-11-30030 November 1982 Forwards Socioeconomic Monitoring & Mitigation Rept, & Const Employee Monitoring Errata Rept ML20065S3791982-10-26026 October 1982 Informs of Discussions Re Leasing Portions of Site to Lansdowne Steel & Iron Co for 10 Yrs.Description of Site Portions Under Consideration Encl.Cp for Sites Withdrawn ML20065F8371982-09-13013 September 1982 Forwards Response to NRC Re Violations Noted in IE Insp Repts 50-518/82-08 & 50-520/82-08.Corrective Actions:Qc Investigation Rept Written to Prevent Use of Protective Coatings & PVC Conduit Covered & Stored ML20069D5161982-09-10010 September 1982 Forwards Socioeconomic Monitoring & Mitigating Rept,Sept 1981 ML20055C0611982-08-0606 August 1982 Forwards Info Re QA for Deferred Plants,In Response to NRC .Possible Cancellation of Some Units Will Be Discussed at Future Meeting of TVA Board of Directors ML20054K1531982-06-23023 June 1982 Informs That Final Deficiency Repts for Listed Nonconformances Will Not Be Submitted Until Final Decision Is Made Re Const of Projects ML20054D6501982-02-19019 February 1982 Submits Final Response Re IE Bulletin 80-20, Failures of Westinghouse Type W-2 Spring Return to Neutral Control Switches. No Westinghouse Type Switches Used in Facilities ML20041C1091982-02-18018 February 1982 Forwards Hartsville Nuclear Plants Socioeconomic Monitoring & Mitigation Rept,Hnp SMR-10,810331, as Required by Cps. Continuing Info Will Be Provided on Semiannual Basis ML20040E8381982-01-0606 January 1982 Ack Receipt of IE Insp Repts 50-518/81-20,50-519/81-20, 50-520/81-20 & 50-521/81-20.Corrective Actions:Insp & Const Personnel Instructed to Begin Lightly Scarifying Layers on All Backfill ML20040C1361981-12-29029 December 1981 Responds to NRC 811117 Ltr Re Violations Noted in IE Insp Repts 50-518/81-18,50-519/81-18,50-520/81-18 & 50-521/81-18. Corrective Actions:Preventive Maint Requirements for RHR Pumps Will Be Performed Quarterly ML20039A2811981-12-0404 December 1981 Notifies That Environ Const Noise Monitoring Procedures Will Be Revised at Hartsville & Yellow Creek & Terminated at Phipps Bend.Changes Caused by Slowdown & Cessation of Const. Summary of Const Noise Monitoring Program History Encl ML20040C2651981-11-16016 November 1981 Submits Final Response to IE Bulletin 81-02,Suppl 1,re Potentially Deficient Valves.No Subj Valves Installed at Plants ML20010H3481981-08-14014 August 1981 Responds to IE Bulletin 80-20, Failures of Westinghouse Type W-2 Spring Return to Neutral Control Switches. No Subj Switches Have Been Identified at Facilities.Util Awaits Info from GE for Final Resolution.Next Response by 811030 ML20010A3291981-07-30030 July 1981 Forwards HNP SMR - 9, Socioeconomic Monitoring & Mitigation Rept for Apr-Sept 1980 ML20009G3291981-07-23023 July 1981 Submits Final Response to IE Bulletin 80-21,per NRC 801106 Ltr.Ge & Valve Vendors Indicate No safety-related Valves Have Parts Mfg by Malcolm Foundry Co,Inc ML20009E9871981-07-21021 July 1981 Advises That Planned Start of Excavation for Intake & Discharge in Cumberland River Will Be Delayed Until Aug 1982,per Attachment C of CP ML20009D9311981-07-0808 July 1981 Forwards Response to IE Bulletin 81-03, Flow Blockage of Cooling Water to Safety Sys Components by Corbicula Sp (Asiatic Clam) & Mytilus Sp (Mussel). ML20009D7321981-07-0808 July 1981 Responds to IE Bulletin 81-02, Failure of Gate Type Valves to Close Against Differential Pressure. No Deficient Valves Are Being Supplied for Use at Facility.Addl Rept Will Be Provided by 811016 ML20009G7571981-07-0606 July 1981 Responds to NRC 810604 Ltr Re Violations Noted in IE Insp Repts 50-518/81-08,50-519/81-08,50-520/81-08 & 50-521/81-08. Corrective Actions:Procedure Revised to Include Requirement for Writing Notification of Change Rept within Three Days ML20009A4881981-07-0202 July 1981 Forwards Info Re Implementation of NUREG-0313,Revision 1,in Response to NRC 810226 Ltr.Addl Info for Hartsville & Phipps Bend Will Be Provided in Respective FSARs Tentatively Scheduled for Sept 1983 Submittal ML20009D9461981-06-15015 June 1981 Submits Third Interim Response to IE Bulletin 80-20 Re Failure of Westinghouse W-2 Control Switches.Work Continuing W/Westinghouse on Resolution of Control Switches. GE Collecting Requested Info.Final Rept Ready by 810814 ML20004E9381981-05-27027 May 1981 Submits Second Interim Response to IE Bulletin 80-21, Valve Yokes Supplied by Malcolm Foundry Co,Inc. No Valves W/Vendor Parts Found at Plants.Final Rept,Including GE Input on NSSS Valves, Will Be Filed by 810731 ML20004E7121981-05-22022 May 1981 Forwards Final Supplemental Response to NRC 810114 Ltr Re Violations Noted in IE Insp Repts 50-518/80-24 & 50-520/80-24.Corrective Actions:Mod to Be Encircled on ECN to Improve Visual Identification of Affected Change Areas ML20126L0161981-05-22022 May 1981 Forwards Addl Info Re Flammability of Suspended Ceiling Tile in Control Rooms & Replacement Panels to Be Used at Browns Ferry.Interim Rept on Hartsville & Phipps Bend Sent 810114. Info Constitutes Final Response to ML20004E6281981-05-22022 May 1981 Responds to NRC 810114 Ltr Re Violations Noted in IE Insp Repts 50-518/80-24 & 50-520/80-24.Corrective Actions:Mods Will Be Enriched on Engineering Change Notifications to Improve Visual Identifications ML19346A1151981-05-15015 May 1981 Responds to NRC 810320 Ltr Re Violations Noted in IE Insp Repts 50-518/81-04,50-519/81-04,50-520/81-04 & 50-521/81-04. Corrective Actions:Qcirs Will Be Reviewed & Upgraded as Required & Audit Will Be Conducted by QA Unit ML19346A1161981-04-17017 April 1981 Responds to NRC 810320 Ltr Re Violations Noted in IE Insp Repts 50-518/81-04,50-519/81-04,50-520/81-04 & 50-521/81-04. Corrective Actions:Welders Restricted to Limits of Qualifications ML19347E0911981-04-0303 April 1981 Forwards Justification for Delay in Meeting 821001 Date for Having Operational Upgraded Emergency Response Facility,As Required by Item III.A.1.2 of NUREG-0737.Response for Hartsville & Phipps Bend Will Be Provided by 811009 ML19347E0051981-04-0101 April 1981 Forwards Response to IE Bulletin 80-23, Failures of Solenoid Valves Mfg by Valcor Engineering Corp. Valcor Valves Cited in Bulletin Are Not in Use at Plants ML20004E7171981-03-31031 March 1981 Suppls Response to NRC 810114 Ltr Re Violations Noted in IE Insp Repts 50-518/80-24 & 50-520/80-24.Final Response to Be Submitted Before 810531 ML20004E6311981-03-31031 March 1981 Responds to NRC 810114 Ltr Re Violations Noted in IE Insp Repts 50-518/80-24 & 50-520/80-24.Corrective Actions:Ge Has Been Requested to Document Mods Re Engineering Change Notifications & Drawings ML19352A2601981-03-16016 March 1981 Responds to NRC 810211 Ltr Re Violations Noted in IE Insp Repts 50-518/80-27,50-519/80-25,50-520/80-27 & 50-521/80-23. Corrective Actions:Procedures Re Concrete Placement Initiated ML19350B4601981-03-13013 March 1981 Forwards Plan for Implementing Mussel Monitoring Program Requirements in Cp.Excavation for Discharge Diffuser Tentatively Scheduled for Oct 1981.Prediffuser Const Monitoring Will Be Initiated in Near Future ML19341D0411981-02-10010 February 1981 Provides Addl Response to IE Bulletin 80-20 Re Westinghouse Type W-2 Switches.Info from GE Re Stride Portion of Facilities Has Not Been Received.Info Anticipated by 810615 ML19350A4461981-02-0606 February 1981 Responds to NRC 810114 Ltr Re Violations Noted in IE Insp Repts 50-518/80-24 & 50-520/80-24.Corrective Actions:All Currently Open Notification of Change Repts Will Be Reviewed for Inclusion of Cause & Action to Prevent Recurrence ML20062L5351981-01-28028 January 1981 Forwards Schedule of Submittals Re Ultimate Capacity Analyses for Mark III Containments ML20003A0871981-01-20020 January 1981 Corrects Numbers on Util 810109 & 12 Interim Deficiency Repts Re Pressure Drop in Essential Svc Water Piping & Standby Gas Treatment Design Deficiency ML20062L3871981-01-0505 January 1981 Responds to IE Bulletin 80-21, Valve Yokes Supplied by Malcolm Foundry Co,Inc. Util Awaiting Vendor Response That Parts Do Not Contain Malcolm Foundry Yokes.Final Rept Will Be Filed by 810527 ML20002D0051980-12-29029 December 1980 Forwards Response to IE Bulletin 80-23 Re Failure of Valcor Engineering Corp Solenoid Valves.Valcor Solenoid Valves V70900-21-1 & V70900-21-3 Not Used.Util Waiting for Vendor Response on Valves in Package Components ML19340D4731980-12-23023 December 1980 Forwards Oct 1980 Socioeconomic Monitoring & Mitigation Rept 1988-07-14
[Table view] Category:UTILITY TO NRC
MONTHYEARML20195J1741988-11-29029 November 1988 Provides Supplemental Response to Violations Noted in Insp Rept 50-518/87-01.Corrective Actions:Completion of Procedure on Prescribing Preventive Maintenance Requirements Rescheduled for 890301 ML20151E7511988-07-14014 July 1988 Responds to NRC Re Violations Noted in Insp Repts 50-518/87-01 & 50-520/87-01.Corrective Actions:Reviewed Vendors Storage & Preventive Maint Instructions Against Tech Spec 01.00.15.14.03 & Revised Topical Rept TVA-TR75-1A ML20133N7321985-10-24024 October 1985 Forwards Proposed Cancellation Plans for Plants Officially Canceled on 840829.Requests Withdrawal of CPPR-150,CPPR-152, CPPR-172 & CPPR-173.W/two Oversize Drawings ML18029A3981985-02-27027 February 1985 Responds to RM Diggs 850117 & 0211 Ltrs Re Determination of Fees for Const Extension Requests.Util Supports NRC Determination & Will Submit Fees ML20096F8471984-09-0505 September 1984 Forwards Motion to Terminate Appellate Jurisdiction.W/O Encl.Related Correspondence ML20090B3551984-05-22022 May 1984 Forwards Response to Unresolved Items in IE Insp Repts 50-518/84-01 & 50-520/84-01.Corrective Actions:Util Prepared Preventive Maint Document Establishing Guidance for Protection,Preservation & Periodic Insp of Matls ML20093F0921984-05-22022 May 1984 Responds to NRC Re Violations Noted in IE Insp Repts 50-518/84-01 & 50-520/84-01.Corrective Actions:Matl & Equipment Will Be Maintained Per Requirement Documents & Permanent Structures Will Be Thoroughly Inspected Annually ML20073S8591983-05-0505 May 1983 Forwards Details of Deferral Plans for Hartsville Nuclear Plant A. Yellow Creek Plan Submittal Delayed Until 830513 ML20071B9741983-02-24024 February 1983 Reiterates 830121 Request for CP Extension Until 870901 to Permit Final Decision Re Future of Nuclear Units Based on Load Growth/Demand.Deferral Plan Details to Be Submitted by 830506 ML20069Q3661982-11-30030 November 1982 Forwards Socioeconomic Monitoring & Mitigation Rept, & Const Employee Monitoring Errata Rept ML20065S3791982-10-26026 October 1982 Informs of Discussions Re Leasing Portions of Site to Lansdowne Steel & Iron Co for 10 Yrs.Description of Site Portions Under Consideration Encl.Cp for Sites Withdrawn ML20065F8371982-09-13013 September 1982 Forwards Response to NRC Re Violations Noted in IE Insp Repts 50-518/82-08 & 50-520/82-08.Corrective Actions:Qc Investigation Rept Written to Prevent Use of Protective Coatings & PVC Conduit Covered & Stored ML20069D5161982-09-10010 September 1982 Forwards Socioeconomic Monitoring & Mitigating Rept,Sept 1981 ML20055C0611982-08-0606 August 1982 Forwards Info Re QA for Deferred Plants,In Response to NRC .Possible Cancellation of Some Units Will Be Discussed at Future Meeting of TVA Board of Directors ML20054K1531982-06-23023 June 1982 Informs That Final Deficiency Repts for Listed Nonconformances Will Not Be Submitted Until Final Decision Is Made Re Const of Projects ML20054D6501982-02-19019 February 1982 Submits Final Response Re IE Bulletin 80-20, Failures of Westinghouse Type W-2 Spring Return to Neutral Control Switches. No Westinghouse Type Switches Used in Facilities ML20041C1091982-02-18018 February 1982 Forwards Hartsville Nuclear Plants Socioeconomic Monitoring & Mitigation Rept,Hnp SMR-10,810331, as Required by Cps. Continuing Info Will Be Provided on Semiannual Basis ML20040E8381982-01-0606 January 1982 Ack Receipt of IE Insp Repts 50-518/81-20,50-519/81-20, 50-520/81-20 & 50-521/81-20.Corrective Actions:Insp & Const Personnel Instructed to Begin Lightly Scarifying Layers on All Backfill ML20040C1361981-12-29029 December 1981 Responds to NRC 811117 Ltr Re Violations Noted in IE Insp Repts 50-518/81-18,50-519/81-18,50-520/81-18 & 50-521/81-18. Corrective Actions:Preventive Maint Requirements for RHR Pumps Will Be Performed Quarterly ML20039A2811981-12-0404 December 1981 Notifies That Environ Const Noise Monitoring Procedures Will Be Revised at Hartsville & Yellow Creek & Terminated at Phipps Bend.Changes Caused by Slowdown & Cessation of Const. Summary of Const Noise Monitoring Program History Encl ML20040C2651981-11-16016 November 1981 Submits Final Response to IE Bulletin 81-02,Suppl 1,re Potentially Deficient Valves.No Subj Valves Installed at Plants ML20010H3481981-08-14014 August 1981 Responds to IE Bulletin 80-20, Failures of Westinghouse Type W-2 Spring Return to Neutral Control Switches. No Subj Switches Have Been Identified at Facilities.Util Awaits Info from GE for Final Resolution.Next Response by 811030 ML20010A3291981-07-30030 July 1981 Forwards HNP SMR - 9, Socioeconomic Monitoring & Mitigation Rept for Apr-Sept 1980 ML20009G3291981-07-23023 July 1981 Submits Final Response to IE Bulletin 80-21,per NRC 801106 Ltr.Ge & Valve Vendors Indicate No safety-related Valves Have Parts Mfg by Malcolm Foundry Co,Inc ML20009E9871981-07-21021 July 1981 Advises That Planned Start of Excavation for Intake & Discharge in Cumberland River Will Be Delayed Until Aug 1982,per Attachment C of CP ML20009G1271981-07-15015 July 1981 Interim Deficiency Rept Re High Pressure Core Spray Component Wiring Discrepancies.Corrective Action Date for Hardware & Software Will Be 810730 Instead of 810630. Revised Vendor Drawings Have Not Been Received ML20009D9311981-07-0808 July 1981 Forwards Response to IE Bulletin 81-03, Flow Blockage of Cooling Water to Safety Sys Components by Corbicula Sp (Asiatic Clam) & Mytilus Sp (Mussel). ML20009D7321981-07-0808 July 1981 Responds to IE Bulletin 81-02, Failure of Gate Type Valves to Close Against Differential Pressure. No Deficient Valves Are Being Supplied for Use at Facility.Addl Rept Will Be Provided by 811016 ML20009G7571981-07-0606 July 1981 Responds to NRC 810604 Ltr Re Violations Noted in IE Insp Repts 50-518/81-08,50-519/81-08,50-520/81-08 & 50-521/81-08. Corrective Actions:Procedure Revised to Include Requirement for Writing Notification of Change Rept within Three Days ML20009A4881981-07-0202 July 1981 Forwards Info Re Implementation of NUREG-0313,Revision 1,in Response to NRC 810226 Ltr.Addl Info for Hartsville & Phipps Bend Will Be Provided in Respective FSARs Tentatively Scheduled for Sept 1983 Submittal ML20009D9461981-06-15015 June 1981 Submits Third Interim Response to IE Bulletin 80-20 Re Failure of Westinghouse W-2 Control Switches.Work Continuing W/Westinghouse on Resolution of Control Switches. GE Collecting Requested Info.Final Rept Ready by 810814 ML20004E9381981-05-27027 May 1981 Submits Second Interim Response to IE Bulletin 80-21, Valve Yokes Supplied by Malcolm Foundry Co,Inc. No Valves W/Vendor Parts Found at Plants.Final Rept,Including GE Input on NSSS Valves, Will Be Filed by 810731 ML20004E6281981-05-22022 May 1981 Responds to NRC 810114 Ltr Re Violations Noted in IE Insp Repts 50-518/80-24 & 50-520/80-24.Corrective Actions:Mods Will Be Enriched on Engineering Change Notifications to Improve Visual Identifications ML20004E7121981-05-22022 May 1981 Forwards Final Supplemental Response to NRC 810114 Ltr Re Violations Noted in IE Insp Repts 50-518/80-24 & 50-520/80-24.Corrective Actions:Mod to Be Encircled on ECN to Improve Visual Identification of Affected Change Areas ML20126L0161981-05-22022 May 1981 Forwards Addl Info Re Flammability of Suspended Ceiling Tile in Control Rooms & Replacement Panels to Be Used at Browns Ferry.Interim Rept on Hartsville & Phipps Bend Sent 810114. Info Constitutes Final Response to ML19346A1151981-05-15015 May 1981 Responds to NRC 810320 Ltr Re Violations Noted in IE Insp Repts 50-518/81-04,50-519/81-04,50-520/81-04 & 50-521/81-04. Corrective Actions:Qcirs Will Be Reviewed & Upgraded as Required & Audit Will Be Conducted by QA Unit ML19346A1161981-04-17017 April 1981 Responds to NRC 810320 Ltr Re Violations Noted in IE Insp Repts 50-518/81-04,50-519/81-04,50-520/81-04 & 50-521/81-04. Corrective Actions:Welders Restricted to Limits of Qualifications ML19347E0911981-04-0303 April 1981 Forwards Justification for Delay in Meeting 821001 Date for Having Operational Upgraded Emergency Response Facility,As Required by Item III.A.1.2 of NUREG-0737.Response for Hartsville & Phipps Bend Will Be Provided by 811009 ML19347E0051981-04-0101 April 1981 Forwards Response to IE Bulletin 80-23, Failures of Solenoid Valves Mfg by Valcor Engineering Corp. Valcor Valves Cited in Bulletin Are Not in Use at Plants ML20004E7171981-03-31031 March 1981 Suppls Response to NRC 810114 Ltr Re Violations Noted in IE Insp Repts 50-518/80-24 & 50-520/80-24.Final Response to Be Submitted Before 810531 ML20004E6311981-03-31031 March 1981 Responds to NRC 810114 Ltr Re Violations Noted in IE Insp Repts 50-518/80-24 & 50-520/80-24.Corrective Actions:Ge Has Been Requested to Document Mods Re Engineering Change Notifications & Drawings ML19352A2601981-03-16016 March 1981 Responds to NRC 810211 Ltr Re Violations Noted in IE Insp Repts 50-518/80-27,50-519/80-25,50-520/80-27 & 50-521/80-23. Corrective Actions:Procedures Re Concrete Placement Initiated ML19350B4601981-03-13013 March 1981 Forwards Plan for Implementing Mussel Monitoring Program Requirements in Cp.Excavation for Discharge Diffuser Tentatively Scheduled for Oct 1981.Prediffuser Const Monitoring Will Be Initiated in Near Future ML19341D0411981-02-10010 February 1981 Provides Addl Response to IE Bulletin 80-20 Re Westinghouse Type W-2 Switches.Info from GE Re Stride Portion of Facilities Has Not Been Received.Info Anticipated by 810615 ML19350A4461981-02-0606 February 1981 Responds to NRC 810114 Ltr Re Violations Noted in IE Insp Repts 50-518/80-24 & 50-520/80-24.Corrective Actions:All Currently Open Notification of Change Repts Will Be Reviewed for Inclusion of Cause & Action to Prevent Recurrence ML20062L5351981-01-28028 January 1981 Forwards Schedule of Submittals Re Ultimate Capacity Analyses for Mark III Containments ML20003A0871981-01-20020 January 1981 Corrects Numbers on Util 810109 & 12 Interim Deficiency Repts Re Pressure Drop in Essential Svc Water Piping & Standby Gas Treatment Design Deficiency ML20062L3871981-01-0505 January 1981 Responds to IE Bulletin 80-21, Valve Yokes Supplied by Malcolm Foundry Co,Inc. Util Awaiting Vendor Response That Parts Do Not Contain Malcolm Foundry Yokes.Final Rept Will Be Filed by 810527 ML20002D0051980-12-29029 December 1980 Forwards Response to IE Bulletin 80-23 Re Failure of Valcor Engineering Corp Solenoid Valves.Valcor Solenoid Valves V70900-21-1 & V70900-21-3 Not Used.Util Waiting for Vendor Response on Valves in Package Components ML19340D4731980-12-23023 December 1980 Forwards Oct 1980 Socioeconomic Monitoring & Mitigation Rept 1988-07-14
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.i 400 Chestnut Street Tower II March 13,1981 g,g 0
C MAR 191991 >- j lu mesma assuren Mr. Darrell G. Eisenhut, Director -
Division of Licensing T /.[
U.S. Nuclear Regulatory Comission y , . j. t '"'
Washington, DC 20555
Dear Mr. Eisenhut:
In the Matter of the Application of the ) STN 50-518 Tonnessee Valley Authority ) STN 50-519 STN 50-520 STN 50-521 Enclosed is TVA's plan for implementing each monitoring requirement of the mussel monitoring program described in Attachment C of the Hartsville Nuclear Plant Construction Permit (CP) dated May 9,1977.
This plan is intended to clarify several points in Attachment C of the CP. Excavation for the discharge diffuser is tentatively scheduled to comence in October 1981. TVA has obtained an Endangered Species Permit from the U.S. Fish and Wildlife Service enabling TVA to conduct the required monitoring effort. Pre-diffuser construction monitoring will be initiated by TVA in the near future. This monitoring should provide valuable information in determining existing mussel numbers and environmental conditions in the river to evaluate if the requirements established in the CP are applicable under present river conditions.
.In accordance with the CP, TVA will give a three-week notice to the NRC staff, the Intervenors, the U.S. Fish and Wildlife Service, the EPA, and the State of Tennessee before the initiation of dredging ac tivity.
Very truly yours, TDINESSEE VALLEY AUTHORITY h DA \
L. M. Mills, Manager Nuclear Regulation and Safety Enclosure cc: See page 2 Coc) 8103200577 A
-- _ = _ - - . - _ _ - _ _ _ - _ . - .
Mr. Darrell G. Eisenhut, Director March 13,1981 cc (Enclosure):
Mr. Kenneth E. Black
. Regional Director
, U.S. Fish and Wildlife Service P.O. Box 95067 ,
Atlanta, Georgia 30347 '
Mr. Leroy J. Ellis III, Esq.
Chancery Building 421 Charlotte Avenue Nasnville, Tennessee 37219 Mr. Gary Meyers Executive Director TWRA P.O. Box 40747 Ellington Agricultural Center Nashville, Tennessee 37204 Dr. Robert J. Neff Associate Professor Department of Molecular Biology Vanderbilt University Nashville, Tennessee 37203 Mr. Robert B. Pyle, Esq.
Suite 204 1700 Hayes Street Nashville, Tennessee 37203
, Mr. Howard Zeller, Acting Director Enforcement Division U.S Environmental Protection Agency Region IV 345 Courtland Street, NE Atlanta, Georgia 30308
Enclosure PRE-DIFFUSER CONSTRUCTION
- 1. " Square meter grid sa=ples will be collected along approx 1=ately 30 transects at 50-foot intervals approximating those established during the Dece=ber 1976 mussel survey. The number of quadrats established on each transect will depend on the width of the mussel bed at that particular transect. The square meter grid will be placed on the bottom at approxi=ately 20-foot intervals and all mussels will be care-fully removed and examined and immediately returned to the river.
This reassessnent of the =ussel bed prior to the initiation of dif fuser construction is necessary because a visit to the Cumberland River and Hartsville site in July 1977 revealed that mussels were being removed ,
from the Dixon Island mussel bed by co==ercial mussel fishermen."
TVA ce= ment: This work will be conducted during mid-su==cr 1981 by scuba divers exactly as specified above. Results of the survey will be used as follows: (1) to quantitatively and qualitatively describe the mussel f auna on the Dixon Island bed in order to determine if mussel fishermen have significantly affected these populations since the comprehensive survey of 1976 and (2) to map concentrations of mussels on the bed for use in place =ent of sediment traps.
- 2. " Prior to the initiation of instream construction activities, sediments in the area of diffuser construction and downstream will be sampled and characterized as to particle size and total volatile solids.
This will provide a baseline of data for evaluating the depostirn 3f sediments resulting from the excavation activities. The follouing procedures will be followed for this activity:
A. Core sampler will be utilized.
B. Ivo transects will be established at the site of dredging--10 sa=ples will be taken.
C. Three transects will be established'on the Dixon Island mussel bed--
15 samples will be taken."
TVA comments: This work will be conducted during late winter or early spring 1981 following above procedures. In addition to the purpose stated in item I under Post-Dif fuser Excavation Period, these data will be used to determine if river flow can be regu-laced to control sedimentation by controlling water velocities in the vicinity of Dixon Island mussel bed and to determine flow rates which best flush sediment from the Dixon Island mussel bed.
- 3. " Chemical constituents of the sediments will be determined prior to the diffuser construction. An elutriate test will be perfor ed to detect any significant release of contaminants in the material to be dredged.
Six samples will be collected in the area to be dredged and 3 samples will be collected on the Dixon Island mussel bed. Sa=ples will be analyzed for Hg, Pb, As, Cd, Cu, Zn."
TVA co==ent: Samples for these analyses will be collected at the same locations as those in Ite= 2 above, and analyses will be performed following standard procedures. Results of thess tests will be used to deter =ine if changes in construction procedures should be considered.
4 " Sedimentation trapa will be placed by Scuba divers at specified intervals along the length of the Dixon Island =ussel bed downstream of the proposed dredging operation to esti= ate the loss of and acce=ulation of =aterials in the sediments (to be continued throughout the instrea= dredging ac tivJ. ties) . A control station (1 transect) upstres= of the dredging operation will be monitored to detect natursi sedi=entation rates for co=parative. ourposes." ,
TVA co==ent: Sediment =easuring devices are currently being designed by TVA engineers. Once designed, tested, and constructed in sufficient nu=bers, devices to measure sedinent depth will be placed by scuba divers upstrea= of the dredge site and on the Dixon Island =ussel bed. This will probably occur during =tuau==er 1981. The nu=ber
- of traps to be used and exact place =ent locations will be deter-
=ined af ter cespletion of sedi=ent characterization and pre-dif fuser excavation mussel survey. These results will provide information on natural sedi=entation at upstrea= and downstrea:
locations as well as infor:ation on botto= lead sediment transport.
- 5. " Scuba divers will search the area from Dixon Islanc downstrea= to the upper edge of the Dixon Island =ttssel bed and re=ove any isolated nussel speci= ens. Any speci= ens found will be placed on or in the substrate of an established =ussel bed."
TVA co==ent: During =idsu==er 1981 scuba divers will wearch the area fro = CuRM 284.1 to Dixon Island for isolated mussel specimens, re=o-a these specimens, and place the= on the Dixon Island =ussel bed (i.e., the nearest =ussel bed).
DIFFUSER EXCAVATION PERIOD
- 1. " Prior to initiation of the dredging activity, the Per=ittee shall give three weeks written notice of the planned construction schedule to the NRC Staff, the Intervenor, the U.S. Fish and Wildlife Service, the U.S.
Environ = ental Protection Agency and the State of Tennessee."
TVA co= cent: Notifications will bc =ade as specified.
- 2. " Sedimentation traps will continue to be placed at the sa:e stations used in the pre-diffuser excavation period. The traps will be returned twice per 3-hour dredging crew working shif t (once after 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and once after S hours) during excavation of approxi=ately the first 1,000 cubic yards of =aterial. Additional sedi=entation traps will be placed at the same stations to provide a =easure of the aggregate (total) deposi-tion of silt which results from the construction activity during the excavation period. Applicant will deter =ine the depth of sediment deposited in the traps. If one-quarter inch or = ore aggregate sedi=ent
3 l .
is found to have been deposited in at least two sa=ple traps, dredging
- vill be stopped. Dredging may be resumed if later observation of sedi-ment traps shows that the aggregate sediment deposition has been reduced i
. to less than one-quarter inch. Before using any artificial means to re=ove the sediment, Applicant will obtain the concurrence of the Department of Interior."
k TVA co==ent: Various sediment trap designs are currently being
); evaluated. The design which appears most promising is best described as a tray rather than a trap and uses ultrasonic freq-uencies to measure depth of sediment accumulated on the tray. If this design is selected, scuba divers will place trays at the same locations used in Item 4 under Pre-Diffuser Construction.
The trays will then be checked every four hours as specified--it ,
will not be necessary for scuba divers to return the trays to surface since this design will provide a surface " read out" from a deck or shore unit. All trays will be monitored throughout !
t instream dredging, l,
! Sediment tray results during the Diffuser Excavation Period will ,
be compared to results from the Pre-Diffuser Construction Perfod i to document differences in sediment deposition between the two
- periods. If sedi=ent accu =ulation en at least two trays on the Dixon Island mussel bed is 1/4 inch or = ore, dredging vill be '
stopped. Dredging will be resumed when sediment depth decreases below 1/4-inch.
I 3. " Turbidity levels of the river above and below the dredging activities l
will be measured at 1-meter depth intervals from surface to the bottom and averaged over the water colu=n to document changes in i natural turbidity levels resulting from these activities. Samples will be taken hourly during excavation.' Natural turbidity levels of record 4
as defined in the Hartsville Nuclear Plant's ER will be the feedback criteria for regulating the rate of instreas dredging. Maximum docu-
- mented levels of turbidity are 85 ppm (JTU)." l L
LTVA comment: Turbidity measurements at 1-eeter depth intervals
, upstream of the diffuser dredge site will document natural or base-l .line- turbidity levels during the period of instream dredging.
Turbidity measurements downstream of the diffuser construction site will provide information on.the increase in turbidity result-
- ing f rom construction activity. Turbidity will be measured at- a j midpoint on .the Dixon Island mussel bed approxi=ately 600 feet ,
downstream of the dredge site. If turbidity increases cause the
- downstream reading to exceed 85-JIU, then the rate of dredging i may be slowed, although the controlling criterion will be a 50 percent reduction in the depth of 0.1 percent of the light trans-mission with reference to an upstream control as specified in. item 4 below.
I
- 4. . " Measurement of light intensity in the vater colu=n will be perfor=ed ,
!- with a submarine. photometer both above and below the dredging activi- I k
. ties. Measurements will be made hourly during excavation. A 50
- percent reduction in the depth of 0.1 percent of the light trans-
~ mission at some selected point'at the mussel bed' relative to an i 4
--,e - -- .; ,,a -u .,, .,A-.-, n ~ _ . . , , ,,. , - -
_4 upstream location (above the dredging activities) will be the feed-back criteria for instituting corrective mitigative acuisns."
TVA comment: Light transmissibility measure =ents will be made hourly at a control point upstream of Dixon Island and at a mid-point on the Dixon Island mussel bed approximately 600 feet down-stream of the construction site. If a 50 percent reduction in the depth of 0.1 percent of light transmission relative to the upstream control occurs, corrective action will be initiated to comply with the above criterion.
- 5. "Should the aggregate silt deposition or turbidity levels or light pene-tration data indicate a need for mitigative action, the inspector will report his findings and make his reco==endation to the praject environ-mental engineer, who will present these findings and rectne.endations to the project =anager. The project manager will make the caeision on the citigative actions to be taken, i.e. , to slow down or halt construction."
TVA co==ent: These directives will be followed.
- 6. " Dissolved oxygen, pH, conductivity, and te=perature profiles will be made at upstream and downstream locations to document any perturbations of these parameters."
TVA ce==ent: These parameters will be monitored every four hours at the same locations as light intensity measure =ents (see Item 4 in this section). These results will be evaluated and reported as specified in item 8 below.
- 7. "During blasting activities, mussels will be placed by scuba divers at established intervals from the area of the blasting to deter =ine if mussels on the Dixon Island bed are harmed by shock waves from these activities. No threatened or endangered species vill be used."
TVA comment: If blasting is required, ten specimens of a non-endangered mussel species will be placed at 10-foot intervals, starting at a point 10 feet from the blast out for 100 feet.
Holes will be drilled for blasting charges to reduce blasting effects.
- 8. "Within 30 days after completion of the dredging activity, the Permittee shall submit to the NRC Staff a su==ary report of the results of the monitoring plan with copies to the Intervenors, the U.S. Fish and Wild-life Service, the U.S. Environmental Protection Agency and the State of Tennessee."
TVA comment: As directed, the su==ary report will be sub=itted -
'vithin 30 workint days after co:pletion of dredging activity.
POST-DIFFUSER CONSTRUCIION
- 1. "A post-diffuser construction survey of sediments in the area of the ditruser and mussel bed will be conducted to document any perturbation of river sediments as a result of these construction activities. A total of 5 samples will be collected from each of three transects approxi-mating those established in Pre-diffuser construction (2)."
TVA co==ent: A core sampler will be used to collect samples for particle size and total volatile solids from the same locations on the Dixon Island mussel bed that were sampled in the Pre-Diffuser ,
Construction period (see Item 2 of that section). The two transects within the excavation corridor sampled during Pre-Dif fuser Construc-tion will not be sampled during Post-Dif fuser Construction. This is the area that has been dredged and backfilled with rock. This work will be performed as soon af ter completion of instream construc-tion at conditions and scheduling permit.
- 2. " Transects approxima ting those established during the pre-dif fuser con-struction survey will be established at 50-foot intervals beginning at the upper end of the mussel bed (CRM 284.1). Square acter sangjas will be taken along the transect. Mussels recovered from the square meter grids will be carefully removed and examined and i==ediately returned to the river. This qualitative and quantitative data will serve as.a reevaluation of the mussels found on the Dixon Island mussel bed following completion of the diffuser construction activities."
TVA comment: This survey will be conducted by scuba divers as specified above after completion of discharge diffuser construction.
i