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MONTHYEARML22340A1952022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 10, Tables ML22340A1662022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 14.2, Tables 14.2.5-1 to 14.2.8-1 (Unit 2) ML22340A1672022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 14.1, Core and Coolant Boundary Protection Analysis (Unit 2) ML22340A1682022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 14, Table 14.0-1 (Unit 2) ML22340A1712022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 2, Tables ML22340A1542022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 5, Tables ML22340A1752022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 14.1, Tables 14.1.0-1 to 14.1.12-1 (Unit 2) ML22340A1732022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 14.A-G, Radiation Sources (Appendix 14A) (Unit 1) ML22340A2052022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 1, Tables ML22340A1972022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 7, Tables ML22340A2002022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 3, Figures (Unit 2) ML22340A1962022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 14.3, Figures 14.3.1-1A to 14.3.4-75 (Unit 1) ML22340A1722022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 14.2, Figures 14.2.5-1 to 14.2.8-8 (Unit 2) ML22340A1862022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 6, Tables ML22340A1802022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 3, Tables (Unit 1) ML22340A1812022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 11, Tables ML22340A1782022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 9, Tables ML22340A1772022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 14.1, Tables 14.1-1 to 14.1.13-1 (Unit 1) ML22340A1792022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 14.3, Figures 14.3.1-1A to 14.3.3-8 (Unit 2) AEP-NRC-2022-62, 1 to Updated Final Safety Analysis Report, Chapter 14.3, Reactor Coolant System Pipe Rupture (Loss of Coolant Accident) (Unit 1)2022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 14.3, Reactor Coolant System Pipe Rupture (Loss of Coolant Accident) (Unit 1) ML22340A2112022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 13, Tables ML22340A2082022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 14.4, Revision 19, Environmental Qualifications Analyses (Unit 1) ML22340A2072022-11-30030 November 2022 1 to Updated Final Safety Analysis Report, Chapter 3, Tables (Unit 2) ML22340A2062022-11-30030 November 2022 1 to Updated Final Safety 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ML21125A5902021-04-19019 April 2021 0 to Updated Final Safety Analysis Report, Chapter 3, Tables (Unit 2) ML21125A5932021-04-19019 April 2021 0 to Updated Final Safety Analysis Report, Chapter 11, Tables ML16336A3952016-10-24024 October 2016 Donald C. Cook Nuclear Plant, Units 1 & 2, Revision 27 to Updated Final Safety Analysis Report, Chapter 2, Table 2.2-19 ML16343A0542016-10-24024 October 2016 Donald C. Cook Nuclear Plant, Units 1 & 2, Revision 27 to Updated Final Safety Analysis Report, Chapter 11, Figure 11.6-2A, Fuel Assembly Flow Chart ML16336A3722016-10-24024 October 2016 Donald C. Cook Nuclear Plant, Units 1 & 2, Revision 27 to Updated Final Safety Analysis Report, Chapter 2, Table 2.1-12 ML16336A4002016-10-24024 October 2016 Donald C. Cook Nuclear Plant, Units 1 & 2, Revision 27 to Updated Final Safety Analysis Report, Chapter 2, Table 2.6-3 ML16343A0512016-10-24024 October 2016 Donald C. Cook Nuclear Plant, Units 1 & 2, Revision 27 to Updated Final Safety Analysis Report, Chapter 11, Figure 11.2-1, Integrated Exposure as a Function of Distance from Containment Building ML16336A3702016-10-24024 October 2016 Donald C. Cook Nuclear Plant, Units 1 & 2, Revision 27 to Updated Final Safety Analysis Report, Chapter 2, Table 2.1-9 ML16336A3972016-10-24024 October 2016 Donald C. Cook Nuclear Plant, Units 1 & 2, Revision 27 to Updated Final Safety Analysis Report, Chapter 2, Table 2.5-1 ML16336A3762016-10-24024 October 2016 Donald C. Cook Nuclear Plant, Units 1 & 2, Revision 27 to Updated Final Safety Analysis Report, Chapter 2, Table 2.2-2 2022-11-30
[Table view] Category:Letter
MONTHYEARIR 05000315/20230042024-01-31031 January 2024 Integrated Inspection Report 05000315/2023004 and 05000316/2023004 ML24004A1582024-01-19019 January 2024 Exemption from Select Requirements of 10 CFR Part 73 (EPID L-2023-LLE-0039 (Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting)) AEP-NRC-2024-01, Emergency Plan Revision 482024-01-0808 January 2024 Emergency Plan Revision 48 AEP-NRC-2023-56, Report Per Technical Specification 5.6.6 for Inoperability of Unit 1 Post Accident Monitoring Reactor Coolant (Loop 3 Cold Leg) Wide Range Temperature Recorder Thermal Sensor2023-12-20020 December 2023 Report Per Technical Specification 5.6.6 for Inoperability of Unit 1 Post Accident Monitoring Reactor Coolant (Loop 3 Cold Leg) Wide Range Temperature Recorder Thermal Sensor ML23352A3502023-12-19019 December 2023 Dc. Cook Nuclear Power Plant, Units 1 Biennial Licensed Operator Requalification Program Inspection and Request for Information ML23338A2642023-12-0505 December 2023 Confirmation of Initial License Examination AEP-NRC-2023-45, Unit 2 - Schedular Exemption for Enhanced Weapons, Firearms, Background Checks, and Security Event Notifications Implementation2023-11-16016 November 2023 Unit 2 - Schedular Exemption for Enhanced Weapons, Firearms, Background Checks, and Security Event Notifications Implementation IR 05000315/20234042023-11-0606 November 2023 Cyber Security Inspection Report 05000315/2023404 and 05000316/2023404 ML23310A1152023-11-0606 November 2023 Notification of the NRC Baseline Inspection and Request for Information, Inspection Report 05000316/2024002 IR 05000315/20234032023-09-19019 September 2023 Security Baseline Inspection Report 05000315/2023403 and 05000316/2023403 IR 05000315/20230112023-08-31031 August 2023 Functional Engineering Inspection - Commercial Grade Dedication Report 05000315/2023011 and 05000316/2023011 ML23242A1832023-08-30030 August 2023 Notification of NRC Baseline Inspection and Request for Information; Inspection Report05000315/2023004 AEP-NRC-2023-40, Annual Report of Loss-of-Coolant Accident Evaluation Model Changes2023-08-29029 August 2023 Annual Report of Loss-of-Coolant Accident Evaluation Model Changes IR 05000315/20234022023-08-11011 August 2023 Security Baseline Inspection Report 05000315/2023402 and 05000316/2023402 AEP-NRC-2023-34, Supplement to Request for Approval of Change Regarding Neutron Flux Instrumentation2023-08-0202 August 2023 Supplement to Request for Approval of Change Regarding Neutron Flux Instrumentation IR 05000315/20230022023-07-24024 July 2023 Integrated Inspection Report 05000315/2023002 and 05000316/2023002 ML23178A2422023-06-28028 June 2023 Reassignment of the U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch III IR 05000315/20230122023-06-22022 June 2023 Biennial Problem Identification and Resolution Inspection Report 05000315/2023012 and 05000316/2023012 IR 05000315/20235012023-06-21021 June 2023 Emergency Preparedness Biennial Exercise Inspection Report 05000315/2023501 and 05000316/2023501 AEP-NRC-2023-29, Core Operating Limits Report2023-06-19019 June 2023 Core Operating Limits Report ML23159A0192023-06-13013 June 2023 Information Meeting with a Question and Answer Session to Discuss NRC 2022 End-Of-Cycle Plant Performance Assessment of Donald C. Cook Nuclear Plant, Units 1 and 2 AEP-NRC-2023-32, Response to NRC Regulatory Issue Summary 2023-1 Preparation and Scheduling of Operator Licensing Examinations2023-06-0606 June 2023 Response to NRC Regulatory Issue Summary 2023-1 Preparation and Scheduling of Operator Licensing Examinations AEP-NRC-2023-33, Renewable Operating Permit2023-06-0505 June 2023 Renewable Operating Permit AEP-NRC-2023-30, Follow-Up Notification of Ph Non-Compliance for Turbine Room Sump2023-06-0101 June 2023 Follow-Up Notification of Ph Non-Compliance for Turbine Room Sump AEP-NRC-2023-27, Annual Radiological Environmental Operating Report2023-05-15015 May 2023 Annual Radiological Environmental Operating Report ML23131A3282023-05-11011 May 2023 D.C. Cook Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000315/2023404 and 05000316/2023404 IR 05000315/20230012023-05-0303 May 2023 Integrated Inspection Report 05000315/2023001 and 05000316/2023001 AEP-NRC-2023-19, Annual Radioactive Effluent Release Report2023-04-30030 April 2023 Annual Radioactive Effluent Release Report ML23117A0062023-04-27027 April 2023 Review of the Spring 2022 Steam Generator Tube Inspections Report ML23114A1142023-04-25025 April 2023 Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection AEP-NRC-2023-23, Annual Report of Individual Monitoring for 20222023-04-24024 April 2023 Annual Report of Individual Monitoring for 2022 AEP-NRC-2023-24, Notification of Ph Non-Compliance for Turbine Room Sump2023-04-12012 April 2023 Notification of Ph Non-Compliance for Turbine Room Sump AEP-NRC-2023-20, Annual Report of Property Insurance2023-04-0303 April 2023 Annual Report of Property Insurance AEP-NRC-2023-15, Decommissioning Funding Status Report2023-03-28028 March 2023 Decommissioning Funding Status Report ML23076A0212023-03-20020 March 2023 Request for Information for NRC Commercial Grade Dedication Inspection; Inspection Report 05000315/2023011; 05000316/2023011 IR 05000315/20234012023-03-16016 March 2023 Security Baseline Inspection Report 05000315/2023401 and 05000316/2023401 ML23066A1882023-03-0707 March 2023 Information Request to Support Upcoming Problem Identification and Resolution (Pi&R) Inspection at Donald C. Cook Nuclear Plant IR 05000315/20220062023-03-0101 March 2023 Annual Assessment Letter for Donald C. Cook Nuclear Plant, Units 1 and 2 (Report 05000315/2022006 and 05000316/2022006) IR 05000315/20220042023-02-0101 February 2023 Integrated Inspection Report 05000315/2022004 and 05000316/2022004 and Exercise of Enforcement Discretion AEP-NRC-2023-11, Form OAR-1, Owner'S Activity Report2023-01-31031 January 2023 Form OAR-1, Owner'S Activity Report IR 05000315/20230102023-01-31031 January 2023 Phase 4 Post-Approval License Renewal Inspection Report 05000315/2023010 and 05000316/2023010 AEP-NRC-2023-02, Request for Approval of Change Regarding Neutron Flux Instrumentation2023-01-26026 January 2023 Request for Approval of Change Regarding Neutron Flux Instrumentation ML22363A5622023-01-0404 January 2023 Relief Request ISIR-5-06 Related to ASME Code Case N-729-6 Supplemental Examination Requirements of Reactor Vessel Closure Head Penetration Nozzles AEP-NRC-2022-66, Report Per Technical Specification 5.6.6 for Inoperability of Unit 2 Post Accident Monitoring Neutron Flux Monitoring2022-12-15015 December 2022 Report Per Technical Specification 5.6.6 for Inoperability of Unit 2 Post Accident Monitoring Neutron Flux Monitoring AEP-NRC-2022-46, Notification of Deviation from Electric Power Research Institute (EPRI) Materials Reliability Program 2019-008, Interim Guidance for NEI 03-08 Needed Requirements for Us PWR Plants for Management of Thermal Fatigue in2022-12-12012 December 2022 Notification of Deviation from Electric Power Research Institute (EPRI) Materials Reliability Program 2019-008, Interim Guidance for NEI 03-08 Needed Requirements for Us PWR Plants for Management of Thermal Fatigue in ML22340A1392022-11-30030 November 2022 Submittal of Revision 31 to Updated Final Safety Analysis Report and 10CFR50.71(e) Updated and Related Site Change Reports IR 05000315/20220112022-11-0404 November 2022 Design Basis Assurance Inspection (Teams) Inspection Report 05000315/2022011 and 05000316/2022011 IR 05000315/20220032022-10-28028 October 2022 Integrated Inspection Report 05000315/2022003 and 05000316/2022003 AEP-NRC-2022-58, U1C31 Steam Generator Tube Inspection Report2022-10-24024 October 2022 U1C31 Steam Generator Tube Inspection Report AEP-NRC-2022-61, Request for Relief Related to American Society of Mechanical Engineers (ASME) Code Case N-729-6 Supplemental Examination Requirements, ISIR-5-062022-10-24024 October 2022 Request for Relief Related to American Society of Mechanical Engineers (ASME) Code Case N-729-6 Supplemental Examination Requirements, ISIR-5-06 2024-01-08
[Table view] Category:Technical Specifications
MONTHYEARML22046A2332022-06-21021 June 2022 Issuance of Amendment Nos. 360 and 342 Regarding Change to the Technical Specification Requirement for Containment Water Level Instrumentation ML21125A5762021-04-19019 April 2021 9 Technical Specification Bases, List of Effective Pages (Unit 2) ML21125A5482021-04-19019 April 2021 2 to Technical Specifications Bases, List of Effective Pages (Unit 1) ML20366A1552021-01-15015 January 2021 Issuance of Amendments Nos. 357 and 336 Regarding Revision to Technical Specifications Bases Control Program ML20329A0012021-01-12012 January 2021 Issuance of Amendment No. 356 Regarding Updating the Reactor Coolant System Pressure-Temperature Limits ML20322A4282021-01-0606 January 2021 Issuance of Amendment Nos. 355 and 335, Revision to Technical Specifications to Adopt Technical Specification Task Force Traveler 567, Revision 1, Add Containment Sump TS to Address GSI-191 Issues AEP-NRC-2020-78, License Amendment Request Regarding a Change to the Steam Generator (SG) Program to Allow for a One-Time Deferral of SG Inspections2020-12-14014 December 2020 License Amendment Request Regarding a Change to the Steam Generator (SG) Program to Allow for a One-Time Deferral of SG Inspections ML19170A3622019-08-0101 August 2019 Issuance of Amendment Approval of Application of Proprietary Leak-Before-Break Methodology for Reactor Coolant System Small Diameter Piping ML17131A2772017-06-0707 June 2017 Issuance of Amendments License Amendment Request Regarding Containment Leakage Rate Testing Program ML16195A0042016-08-0404 August 2016 Issuance of Amendments to Revise Technical Specifications to Adopt Technical Specifications Task Force - 523, Generic Letter 2008 01, Managing Gas Accumulation ML14197A0972015-11-30030 November 2015 Issuance of Amendment Regarding Restoration of Normal Reactor Coolant System Pressure and Temperature Consistent with Previously Licensed Conditions ML15328A4512015-11-19019 November 2015 Enclosures 1 - 5: Affirmation, Description of Proposed Changes, Probabilistic Risk Assessment Technical Adequacy, and CNP Units 1 & 2 TS Pages Marked to Show Proposed Changes ML15187A0022015-07-10010 July 2015 Issuance of Amendment No. 328 (Exigent) Regarding Revision to Technical Specifications for Engineered Safety Feature Actuation System AEP-NRC-2015-62, Exigent License Amendment Request Regarding Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation2015-06-29029 June 2015 Exigent License Amendment Request Regarding Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation ML15076A2262015-04-0606 April 2015 Issuance of Amendments Adoption of TSTF-427, Allowance for Non-Technical Specification Barrier Degradation on Supported System Operability, Revision 2 AEP-NRC-2015-05, Correction of Technical Specification Typographical Error2015-02-0202 February 2015 Correction of Technical Specification Typographical Error ML14282A1182014-11-20020 November 2014 Issuance of Amendments Regarding Containment Divider Barrier Seal AEP-NRC-2014-09, License Amendment Request to Revise Technical Specification Section 5.5.14, Containment Leakage Rate Testing Program2014-03-0707 March 2014 License Amendment Request to Revise Technical Specification Section 5.5.14, Containment Leakage Rate Testing Program ML13282A2142013-10-0909 October 2013 Issuance of Amendment Revision to Technical Specification 3.6.9, Distributed Ignition System (Dis) (Emergency Circumstances) AEP-NRC-2013-79, License Amendment Request Regarding Restoration of Normal Reactor Coolant System Operating Pressure and Temperature Consistent with Previously Licensed Conditions, with Enclosures 1 Through 52013-10-0808 October 2013 License Amendment Request Regarding Restoration of Normal Reactor Coolant System Operating Pressure and Temperature Consistent with Previously Licensed Conditions, with Enclosures 1 Through 5 ML11182A1782011-07-28028 July 2011 License Amendment, Issuance of Amendments Cyber Security Plan AEP-NRC-2009-71, Response to Request for Additional Information Regarding a License Amendment Request Associated with the Large-Break Loss-of-Coolant Accident Analysis Methodology2009-11-20020 November 2009 Response to Request for Additional Information Regarding a License Amendment Request Associated with the Large-Break Loss-of-Coolant Accident Analysis Methodology AEP-NRC-2009-23, License Amendment Request Regarding Large Break Loss-of-Coolant Accident Analysis Methodology2009-03-19019 March 2009 License Amendment Request Regarding Large Break Loss-of-Coolant Accident Analysis Methodology ML0903502102009-01-14014 January 2009 License Amendment Request to Revise Operating Licenses DPR-58 and DPR-74, Appendix B, Environmental Technical Specifications, Part II, Non-Radiological Environmental Protection Plan ML0826004692008-09-0404 September 2008 Supplement to Emergency Diesel Generator Maximum Steady State Frequency Amendment Request ML0815108932008-05-28028 May 2008 Correction of Amendment No. 304 for Unit 1 and 287 for Unit 2, (Tac Nos. MD6317 & MD6318) - Tech Specs ML0812302692008-04-28028 April 2008 Tech Spec Pages for Amendments 305 and 288 Regarding Maximum Ventilation System Filter Pressure Drop ML0812302702008-04-28028 April 2008 Tech Spec Pages for Amendments 304 & 287 to Add a Surveillance Requirement for When Offsite Power Is Provided Via Backfeed Through the Main Transformer and a Unit Auxiliary Transformer ML0806600672008-03-0505 March 2008 Tech Spec Page for Amendments 302 & 285 to Revise a Specification Inadvertently Omitted by Previous Amendments Power Range Neutron Flux High Negative Rate Trip Function ML0801106652008-01-11011 January 2008 Tech Spec Pages for Amendments 301 and 284 Regarding Operational Test of the Reactor Trip on Turbine Trip ML0800800492008-01-0404 January 2008 Technical Specifications, Correction of Amendment No. 282 Containment Sump Modifications Per Generic Letter 2004-02 ML0735204032007-12-17017 December 2007 Technical Specifications, Issuance of Amendment RTS and ESFAS Bypass Testing Capability ML0729501002007-10-18018 October 2007 Technical Specifications, Issuance of Amendments Containment Sump Modifications Per Generic Letter 2004-02 (TAC Nos. MD5901 & MD5902) ML0725306592007-09-19019 September 2007 Technical Specifications, Issuance of Amendment Replacement of Resistance - Temperature Detectors and Associated Piping ML0714200712007-05-11011 May 2007 Technical Specification Change of Conditional Surveillance Frequency ML0710100972007-04-0606 April 2007 Technical Specification Page Correction of Administrative Error in Amendment No. 298, Steam Generator Tube Integrity ML0708607652007-03-14014 March 2007 Corrections to Technical Specification Table of Contents ML0708101332007-03-14014 March 2007 D.C. Cook, Technical Specifications, Steam Generator Integrity ML0700305172006-12-26026 December 2006 Supplement to Application for Technical Specification (TS) Improvement Regarding Steam Generator Tube Integrity ML0628303132006-10-0606 October 2006 D.C. Cook, Tech Spec Pages for Amendment 296, Regarding Elimination of the Resistance Temperature Detector (RTD) Bypass Loop ML0624901142006-09-0101 September 2006 D.C. Cook, Technical Specification Pages Re AC Sources - Operating ML0618801572006-07-0505 July 2006 Technical Specifications Pages Regarding Leakage ML0616004492006-05-31031 May 2006 Application for Amendment to Revise Technical Specification Surveillance Requirement for Channel Calibration of Overtemperature Differential Temperature and Overpower Differential Temperature Reactor Protection System Functions ML0610805842006-04-21021 April 2006 Correction of Amendments Technical Specifications, Conversion to Improved Format ML0610404022006-04-13013 April 2006 Technical Specification - Issuance of Amendment Under Emergency Circumstances Regarding Diesel Generator Votage Limit Requirements ML0607603742006-03-0707 March 2006 Application for Amendment to Revise Technical Specification 5.5.2, Leakage Monitoring Program. ML0604400222006-02-10010 February 2006 Technical Specifications, Delete the Power Range Neutron Flux High Negative Rate Trip Function ML0601700302006-01-12012 January 2006 Tech Spec Pages for Amendments 292 and 274 Regarding Elimination of Requirements for Monthly Operating Reports and Occupational Radiation Exposure Reports ML0527303202005-09-30030 September 2005 Tech Spec Pages for Amendments 291 and 273 Safety Evaluation Regarding Allowed Outage Time Extension for the Emergency Diesel Generators ML0526900432005-09-23023 September 2005 Tech Spec Pages for Amendments 290 and 272 Requirements of Improved Technical Specification Surveillance Requirement 3.8.1.8 with the Wording of Previous Technical Specification SR 4.8.1.1.2.e.11 with Minor Editorial.. 2022-06-21
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U.S. NUCLEAR REGULATORV MISSION DOCKET NUMBER NAG FORM 195 (2-76) $ 0-3(S FILE NUMBER NRC.DISTRIBUTION FOR PART 50 DOCKET MATERIAL %nuts FROM: DATE OF DOCUMENT Mr Rusche Indiana & Michigan Pwr Co 12-28-76 New York, NY DATE RECEIVED GALETTE D G Hume R 'NOTORIZED PROP INPUT FORM NUMBER OF COPIES RECEIVED KORIGINAI I7IUNCLASSIFIED DCOPV 3 signed DESCRIPTION ENCLOSU RE Ltr notarized 12-28-76....trans the following: Amdt to OL/Change. to. the. Tech Specs: Consist of revision to Appendix B with regard to periphyton collection methods...............
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INDIANA gt MICHIGAN POWER COMPANY P. O. BOX 18 BO WL I N G G R E EN STAT!ON NEW YORK, N. Y. 10004 December 28, 1976 Donald C. Cook Nuclear Plant Docket No. 50-315 License No. DPR-58 c'0CKg'ED ue>>~
Mr. Benard C. Rusche, Director Office of Nuclear Reactor Regulati U.S. Nuclear Regulatory Commission Washington, D.C. 20555
Dear Mr. Rusche:
This letter is a request for changes to our Appendix B Technical Specification Section 4.1.2.1.1.4 and Table 4.1.2-1. ". We have attached revised pages 4.1-21 and 4.2-6 to indicate the changes we propose.
Section 4.1.2.1.1.4, "Periphyton, " currently requires the use of artificial substrates set in the lake at specified locations for periphyton collection. Dr. J. C. Ayers of the Great Lakes Research Division of the University of Michigan, under whose direction all aquatic studies are performed at the site, believes that the objective of this section would be better served by diving to observe periphyton growth on the intake and discharge structures and the surrounding riprap and by analysis of samples hand collected during such dives. (Such observations and sampling of periphyton are being carried out during the dives required by section 4.1.2.1.4) . The reasons for our request to modify this specification are:
- 1) The natural conditions of shifting sand bottom and severe wave action along the shore of southeastern Lake Michigan are such that stable substrates are absent, and the region preoperationally was essentially devoid of periphyton. Postoperationally, the region-is still essentially devoid of periphyton and post-operational bottom conditions are not different from preoperational conditions.
- 2) The only substantial aggregation of periphyton between New Buffalo harbor 15 miles to the south 40%
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1 Mr. Benard C. Rusche December 28,'976 and St. Joseph harbor ll miles to the north is on the Coo'k Plant's submerged intake and discharge structures and the riprap surrounding them. From these substrates we have preoperational (1973, 1974) and post operational data on species composition and growth, from visual inspection and collections by our divers.
- 3) Periphyton organisms loosened from the intake structures by waves, currents, and winter ice are entrained into the plant where they are sampled monthly in entrained phytoplankton.
From these samples we have species compositions and organism densities for the preoperational months of 1975 and the postoperational months of 1975 and 1976.
From items 2. and 3. immediately above, we receive (from an existing periphyton community) more data than could be obtained from artificial substrates deployed in April through November and harvested in May through November, as Specification 4.1.2.1.1.4, now requires.
- 5) From items 2. and 3. above, we receive data ideally suited to determinations of abundance changes, changes in population composition, changes in diversity, or changes in other population parameters which might be due to plant operation as Specification 4.1.2.1.1.4~I requires.
- 6) The use of artificial substrates at 1 meter below stillwater level, as Specification 4.1.2.1.1.4.. now requires, would 'be open to the dual criticisms that the substrate might differentially favor or suppress colonization by periphytic organisms (thus acquiring a population different from that on Cook Plant's iron and stone) and that differences in amounts of light reaching the artificial collectors and the riprap might produce differences between the populations (this is pointed out in the Specification).
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Mr. Benard C. Rusche 3 December 28,, 1976 Therefore, we request that section 4.1.2.1.1.4< be changed as shown on the attacheQ revised pages 4.1-21 and 4.2-6. A diving schedule consistent with section 4.1.2.1.4 .
is included.
In addition we request a change in the schedule of fish larvae tows in the lake as specified in Table 4.1.2-1, (also on page 4.2-6). The fish section of this table indicates that fish larvae open water field samples, also used for fish egg collection, shall be taken April-November during ecological monitoring of the Cook Plant,. During October and November we are presently required to sample for fish larvae and eggs at the following open water stations: Stations C and D South Cook at the 20 and 30 foot contours; Station G and H at the 20 and 30 foot contours off Warren Dunes State Park; and Station I North Cook at the 20 foot contour.
The accompanying table gives the results of our field larvae open water sampling for 1973-75. In summary, no larvae or eggs were collected in October 1973 at any station. November was not sampled Que to bad weather. In 1974 a few alewife larvae (34/1000m3 at the suxface and 60/1000m3 at. 8m) were collected at Station H, Warren Dunes.
No other larvae were collected in either month during 1974.
In October 1975, 168 alewife larvae/1000m3 were captured at Station G, Warren Dunes. At Station C, South Cook, 131 trout-perch larvae/1000m3 were also taken in October. No othex larvae were taken in either month during 1975. No fish eggs have been collected in any open water field tows during October-November of 1973-1975.
The above data may be compared with that of our 1973 annual report, Section C "Vertical, diel and seasonal distribution of fish larvae and eggs in the inshore waters of southeastexn Lake Michigan" (In: Inshore Lake Michigan fish populations near the Donald C. Cook Nuclear Plant, 1973.
Jude et al., 1975. Spec. Rep. No. 52, Gxeat Lakes Research Division, Univ. of Mich., Ann Arbor) . This section demon-strates that many more larvae and eggs are collected during peak fish spawning periods in the study area (spring-summer) than in October and November. Larvae and eggs in spring and
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1 Mr. Benard C. Rusche December 28~, 1976 summer samples frequently reach thousands of organisms per 1000m . It is evident from our data that October and November larvae sampling occurs well after most fish have spawned in the study axea.
In addition, no larvae of any Great Lakes fish known to spawn in lakes during fall and winter have ever been observed in October-November field larvae samples.
Such fall-winter spawners would include lake herxing, fourhorn (deepwater) sculpin, lake whitefish, brown trout, brook trout, burbot, lake trout and bloater. Relative scarcity of these species in the study area is believed to be responsible for absence of their larvae.
Alewives, spottail shiners and smelt, whose larvae are frequently encountered in the study area numerically comprised 95.5% of our standard series catch in 1973 and 93.2%
in 1974. To date we have nevex captured brook trout.
Fourhorn sculpin, lake herxing, and bloater prefer deeper
( 30 ft.) water for spawning. Burbot spawn later in south-ern Lake Michigan, probably into December and January (indicated by our gonad data) . Lake trout are reported to spawn over rocks and rubble rather than over sand,. Brown and brook trout spawn more often in rivers and streams than in lakes.
Because we collect so few larvae and no eggs in October and November, and because fall-winter spawners do not appear to breed 'near the Cook plant during these months, we pxopose omission of October and November open water field larvae sampling in the futuxe. This would include stations C,D,G,H, and I, described above. We believe we have already obtained sufficient data regarding October-November fish larvae and egg abundance and identity to justify this request for the change shown on the bottom of the attached revised page 4.2-6.
These proposed changes would not change the intent of the specifications which are to monitor periphyton as an indicator of the effects of Cook Nuclear p3:ant operation
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Mr. Benard C. Rusche December 28;. 1976 on the actuatic environment, and to determine the environmental impact. of plant operation on the fish populations in the vicinity of the plant.
Very truly yours, xg st Vice Presid t JT:mam Attachment Sworn an/ subscribed to before me this RE day of December, 1976 in New York County, New York Notary Public DAVID G. HUME NOTARY PUBLIC, Stefe of New York No. 314608113 Quelified in New York Counly Commission Expires Merch 30, 1977 cc: G. Charno ff R. C. Callen P. W. Steketee R. Walsh R. J. Vollen R. W. Jurgensen Bridgman R. S. Hunter
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3 C TABLE 1. Number of fish larvae (<25.4 mm total length) per 1000 m captured during \
October and November of 1973, 1974 and 1975 from the Cook Plant and Warren Dunes open water stations. Larvae tows only. AL = alewife, TP. = trout-perch.
C el . D G H 8 >M 6n-S. Cook 6a-N. Cook 9m-S. Cook 6a-N. Dunes 9n-M. Dunes *21.2/n-Cook *21.4n<<w. Dunes Honth Depth(m) Day Night Day Night Day Night Day Night Day Night Day Night Day Night 1973 Oct 0 0 0 0 0 0 0 0 0 0 (8)
- 0 0 0 0 0 0 0 0 0 2 (14)* 0 0 0 0 0 0 0 0 0 ST (20)* 0 0 0 0 .0 0 0 0 0 Nov 0 1
2 ST 1974 Oct 0 0 0 0 0 0 0 0 34AL 2 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0' 6 0 0 0 0 0 0 0 8 0 0 0 '0AL Nov 0 0 0 0 0 2 0 0 0 0 4 0 0 ~
0 0 6 0 0 0 0 8 0 0 1975 Oct 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (8)
- 0 0 0 0 0 '0 0 0 0 0 0 0 0 0 4 (14)* ' 0 131TP 0 ' 0 0, 0 0 168AL 0 0 0 0 0 0 6 (20)* 0 0 0 0 0 0 0. 0 0 0 0 0 0 8 0 0 0 0 Nov 0 0 0 0 0 0 0 0 0 0 0 0 0 2 (8)e' 0 0 0 0 0 0 0 0 0 0 0 0 4 (14)* 0 0 0 0 0 0 0 0 0 0 0 0 0 6 (20)* 0 0 0 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0
<The depths for tous.at stations E and N are given in parenthesis.
S ecification Field Method Periphyton on the intake and discharge structures and the sur-rounding riprap shall be visually inspected and samples hand-collected during the months of April through October (see Specification 4.1.2.1.4.).
Monthly samples of entrained phytoplankton at the intake shall be examined 'for periphytic species and the abundances thereof obtained.
'reservation of samples shall be the same as for samples collected in the regular sampling scheme of the general ecological survey.
Labator Method The laboratory methods used shall be the same as those used for phytoplankton in the regular sampling scheme of the general ecological survey see Specification 4.1.2.1.1.2. except th'at each month from April through October a wet-mounted sample from
.the intake structure shall be examined also.
Re ortin Re uirement As"specified in Section 5.4.
Basis Periphyton are attached algae growing upon solid substrates, consequently they are fixed in position. Ef their substrates are located where the Plant 'discharge can reach them, the periphyton may respond .by abundance changes, changes in population composition, changes in diversity, or changes in other population parameters. Statistically significant differences between preoperational and operational population parameters will be noted gnd the relationship to Plane operation investigated.
- 4. 1-21
TABLE 4.1.2-1 (Continued)
MONTHS AND STATIONS USED FOR GENERA ECOLOGICAL SURVEY (See. Table 4.1.2-2 for transect locations and distances from shore) 30 stations (as shown below)
Zone 0
SDC-l-l SDC-1-2 SDC-1-3 SDC-.5-1 SDC-.25-1 SDC-.5-3 Inner DC-1 DC-2 DC-3 NDC-. 5-1 NDC-.25-1 DC-4 NDC-l-l NDC-1-2 NDC-.5-3 SDC-7-1 SDC-7-3 SDC-7-5 SDC-4-1 SDC-7-2 SDC-7-4 Outer SDC-2-1 SDC-2-3 SDC-4-3 NDC-4-1 NDC-2-3 NDC-4-3 NDC-7-1 NDC-7-3 NDC-7-5
~Divin Months: 7 (April, May, June, July, August, September, October)
One sample from the intake structure to be examined in'et-mount each month.
Entrained Peri h ton Months: 1'2 Duplicate samples from the intake forebay shall, each month, be identified and counted by the method used for phytoplankton in the regular sampling scheme of the general ecological survey.
Fish Months: 8 (APril through November)
Eleven permanent stations were established in the area of the Cook Plant and Warren Dunes State Park (control site). Two seining stations (A and B) north and south of the plant and three gillnetting, trawling and fish larvae stations (C and D) south of the plant and I north of the plant in 20 and 30 feet of water were established. A gillnetting station is located at station J north of the plant (30 ft of water). A fish larvae station (E) in 70 feet of water was also established for the months of April through August.
At Warren Dunes State Park (control location) one seining station (F); two stations (G and H) in water. depths of 20 and 30 'feet for gillnetting, trawling and fish larvae; and one station (H) fished during April 'through August at, 70
. foot of water. depth for fish larvae were established. Fish larvae tows shall be conducted at ten stations. No fish larvae tows need be taken during October and November..
4.2-6
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