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Category:ENVIRONMENTAL IMPACT APPRAISALS
MONTHYEARML20217K8821999-10-22022 October 1999 Environ Assessment & Fonsi.Proposed Action Would Revise Analysis for Design Basis loss-of-coolant Accident to Include Dose Contribution from Previously Unevaluated Radioactivity Release Pathway ML20211H9731999-08-27027 August 1999 EA & Fonsi Re Licensee 990319 Application for Amend to License NPF-49,to Support Rerack of SFP to Maintain Capability to Fully Offload Core from Reactor as Facility Approaches End of Operating License ML20207L7391999-03-0505 March 1999 Environ Assessment & Finding of No Significant Impact Re Exemption from 10CFR50,app R,Sections Ii.G & Iii.J to License DPR-65.Three Fire Areas at Plant Do Not Fully Meet Requirements ML20217P2971998-04-30030 April 1998 Environ Assessment & Finding of No Significant Impact Re Proposed Corporate Restructuring of Central Maine Power Co. (Revised Copy) ML20217K5431998-04-24024 April 1998 Environ Assessment & Finding of No Significant Impact Re Issuance of Order of Transfer of Control of License NPF-49 to Extent Held by Util,Which Holds Partial Ownership Interest in Unit 3,located in New London County,Ct ML20202B9191997-11-25025 November 1997 Environ Assessment & Finding of No Significant Impact Re one-time Schedular Exemption from Containment Local Leak Rate Testing Requirements of 10CFR50,App J,Option A,Sections III.D.2.(a) & III.D.3 ML20080Q9051995-02-28028 February 1995 Environ Assessment & Finding of No Significant Impact Re Proposed Amend to Relax Setpoint Tolerance for Pressurizer SV & Main Steam SV ML20078L2041995-02-0303 February 1995 Environ Assessment & Finding of No Significant Impact Re Issuance of Amend to License NPF-49 to Util for Operation of Plant,Unit 3.Action Would Revise TS 3.5.2.a by Granting one-time Extension of Allowable RHR Pump Outage Time ML20073H9691994-09-30030 September 1994 EA & Fonsi Supporting Issuance of Amend from DPR-65 Which Would Provide Temporary Relief from 2-year Schedular Requirement Associated W/Type B & C Periodic Containment LLRT ML20067B2851994-02-14014 February 1994 Environ Assessment & Finding of No Significant Impact Re Mod of Spent Fuel Pool ML20044D9801993-05-13013 May 1993 Environ Assessment & Finding of No Significant Impact Re Exemption from Requirements of 10CFR50,App J,Paragraph III.C.1 ML20127C9581993-01-11011 January 1993 Environ Assessment & Finding of No Significant Impact Re 931118 Request for one-time Extension of Test Period for Type B & C Tests Required by 10CFR50,app J from 930205,until Next Refueling Outage,But No Later than 931205 ML20126H6921992-12-30030 December 1992 Environ Assessment & Finding of No Significant Impact Re Issuance of One Time Exemption from 10CFR50,app J ML20126F2041992-12-17017 December 1992 Environ Assessment & Finding of No Significant Impact Re Application for License Amend for Four Kv Bus Undervoltage Testing ML20126F4061992-12-16016 December 1992 Environ Assessment & Finding of No Significant Impact Re Proposed Amend to License DPR-65,modifying Facility TS in Area of Table 3.3-3,Table Notation & Action Statements ML20126E8021992-12-16016 December 1992 Environ Assessment & Finding of No Significant Impact Re Proposed Amend to Facility License,Adding High Containment Pressure Signal as Input to Msi & Reducing Feed Isolation Portion of Msi from 60 to 14 ML20126E7831992-12-16016 December 1992 Environ Assessment & Finding of No Significant Impact Re Proposed Amend to License NPF-49,revising TS to Extend Required Surveillance Testing for EDG on one-time Basis ML20116K6331992-11-10010 November 1992 EA & Finding of No Significant Impact Re Application for Amend to License Re Rev to TS to Increase Surveillance Test Interval,Allowed Outage Time & Channel Bypass Times for Certain Instrumentation in RCS & ESF Actuation Sys ML20098D6161992-05-20020 May 1992 Environ Assessment & Finding of No Significant Impact Re Proposed Amend to OL to Reflect Transfer of Control of Util ML20090C6791992-03-0303 March 1992 Environ Assessment & Finding of No Significant Impact Re 900328 Request for License Amend,Revising Tech Specs to Improve Overall Diesel Generator Reliability & Performance by Conforming Plant Requirements to Generic Ltr 84-15 ML20066D3501991-01-0808 January 1991 Environ Assessment & Finding of No Significant Impact Re Request for Exemption from Certain Requirements of 10CFR50, App J,Sections Iii.A & Iii.C Concerning Type C Testing of Containment Isolation Valves ML20069P5411991-01-0404 January 1991 Environ Assessment & Finding of No Significant Impact Re Changes to Tech Specs Associated W/Cycle 4 Operation ML20062C7101990-10-24024 October 1990 Environ Assessment & Finding of No Significant Impact Re Licensee Request for Exemption from Requirements of App E to 10CFR50,Section IV.F.3 ML20011E7571990-02-13013 February 1990 Environ Assessment & Finding of No Significant Impact Re 890720 & 1016 Applications for Amend to License NPF-49. Amend Revises Formula for Calculating Power Distribution Limits & Reflects Functions of Radiation Monitors RE41 & 42 ML19332D1371989-11-27027 November 1989 Environ Assessment & Finding of No Significant Impact Re 870817 Application for Amend to License DPR-21,revising Reactor Protection Sys Trip Level Settings ML19325E3811989-10-24024 October 1989 Environ Assessment & Finding of No Significant Impact Revising Tech Specs to Decrease Reactor Trip Set Point & Allowable Value for Reactor Coolant Pump ML20245C9491989-06-20020 June 1989 Environ Assessment & Finding of No Significant Impact Re 890124 Application for Amend to License NPF-49,revising Tech Specs to Permit Use of High Enrichment Fuel (Up to 5.0 Weight Percent U-235) at Facility ML20244C1801989-06-0606 June 1989 Environ Assessment & Finding of Not Significant Impact Re Util Applications for Amend to License DPR-21,increasing Spent Fuel Pool Capacity to 3,229 Fuel Assemblies Plus 20 Defective Fuel Containers ML20206E1321988-11-14014 November 1988 Environ Assessment & Finding of No Significant Impact Re Exemption from Requirements of 10CFR50,App J,Paragraph III.A.3 & Associated License Amend to Permit Use of Mass Point Method of Primary Containment Leakage Testing ML20154Q5491988-09-27027 September 1988 Environ Assessment & Finding of No Significant Impact Re Exemption from Requirements of 10CFR50.54(w)(5)(i) ML20151L9821988-07-27027 July 1988 Environ Assessment & Finding of No Significant Impact Re 861222 Application for Amend to License DPR-21.Amend Would Extend License Expiration Date ML20151S1131988-04-0808 April 1988 Environ Assessment & Finding of No Significant Impact Re Exemption from Requirements of 10CFR50,App R Concerning Separation of Auxiliary Feedwater Isolation Valves,Per 880229 Request ML20149M8151988-02-24024 February 1988 Environ Assessment & Finding of No Significant Impact Supporting Proposed Removal of Limitation Restricting Storage of Consolidated Spent Fuel Boxes to Five,Per 860521 Application to Amend License DPR-65 ML20235T1331987-10-0505 October 1987 Notice of Environ Assessment & Finding of No Significant Impact Supporting Util 870710 Request for Exemption from Certain Requirements of 10CFR50,App J ML20214P2571987-05-27027 May 1987 Environ Assessment & Finding of No Significant Impact Re Util 860521 Application for Amend to Tech Specs to Allow for Storage of Consolidated Spent Fuel at Facility.Eis Unwarranted ML20214H7171987-05-19019 May 1987 Environ Assessment & Finding No Significant Impact Re Licensee Exemption from Requirements of 10CFR50.49, Environ Qualification of Electric Equipment Important to Safety for Nuclear Power Plants ML20206A9871987-04-0606 April 1987 Environ Assessment & Finding of No Significant Impact Re Util Applications for Exemptions from Certain Requirements of 10CFR50,App R Concerning Nonconforming Fire Protection Features ML20207L8881987-01-0808 January 1987 Environ Assessment & Finding of No Significant Impact Re Util 861008 Request for Exemption from Requirements of 10CFR50,App R Concerning 8 H Battery Lighting Units for Operation of Safe Shutdown Equipment.Eis Unwarranted ML20141M7881986-02-0404 February 1986 Notice of Environ Assessment & Finding of No Significant Impact Re Requests for Exemption from Requirements of 10CFR50,App R,Granting Relief in Eight Fire Areas ML20137B4421985-12-16016 December 1985 Environ Assessment & Finding of No Significant Impact Supporting Amend to License DPR-65,authorizing Increase of Spent Fuel Pool Storage Capacity ML20136G9351985-11-12012 November 1985 Environ Assessment & Finding of No Significant Impact Supporting Exemption from 10CFR50.71(e)(3) Re Submittal of Updated FSAR within 24 Months of Ltr Notifying Licensee That SEP Completed ML20126A7691985-05-21021 May 1985 Environ Assessment & Finding of No Significant Impact Supporting Issuance of Exemption from Portion of Requirements of GDC 4 ML20054E7241982-05-28028 May 1982 Eia Supporting Amends 84 & 77 to Licenses DPR-21 & DPR-65, Respectively 1999-08-27
[Table view] Category:TEXT-ENVIRONMENTAL REPORTS
MONTHYEARML20217K8821999-10-22022 October 1999 Environ Assessment & Fonsi.Proposed Action Would Revise Analysis for Design Basis loss-of-coolant Accident to Include Dose Contribution from Previously Unevaluated Radioactivity Release Pathway ML20211H9731999-08-27027 August 1999 EA & Fonsi Re Licensee 990319 Application for Amend to License NPF-49,to Support Rerack of SFP to Maintain Capability to Fully Offload Core from Reactor as Facility Approaches End of Operating License ML20207L7391999-03-0505 March 1999 Environ Assessment & Finding of No Significant Impact Re Exemption from 10CFR50,app R,Sections Ii.G & Iii.J to License DPR-65.Three Fire Areas at Plant Do Not Fully Meet Requirements B17754, Annual Radiological Environ Operating Rept for Millstone Nuclear Power Station,Units 1,2 & 3. with1998-12-31031 December 1998 Annual Radiological Environ Operating Rept for Millstone Nuclear Power Station,Units 1,2 & 3. with ML20206J5361998-12-31031 December 1998 Monitoring Marine Environ of Long Island Sound at MNPS,1998 Annual Rept ML20206J5161998-12-31031 December 1998 Annual Environ Protection Plan Operating Rept for Jan-Dec 1998 ML20217P2971998-04-30030 April 1998 Environ Assessment & Finding of No Significant Impact Re Proposed Corporate Restructuring of Central Maine Power Co. (Revised Copy) ML20217K5431998-04-24024 April 1998 Environ Assessment & Finding of No Significant Impact Re Issuance of Order of Transfer of Control of License NPF-49 to Extent Held by Util,Which Holds Partial Ownership Interest in Unit 3,located in New London County,Ct B17201, Annual Radiological Environ Operating Rept Mnps Radiological Environ Monitoring Program Jan-Dec 19971997-12-31031 December 1997 Annual Radiological Environ Operating Rept Mnps Radiological Environ Monitoring Program Jan-Dec 1997 ML20247B6411997-12-31031 December 1997 Monitoring Marine Environ of Long Island Sound at Millstone Nuclear Power Station Waterford,Ct ML20247B6391997-12-31031 December 1997 Annual Environ Protection Plan Operating Rept for Jan-Dec 1997 ML20202B9191997-11-25025 November 1997 Environ Assessment & Finding of No Significant Impact Re one-time Schedular Exemption from Containment Local Leak Rate Testing Requirements of 10CFR50,App J,Option A,Sections III.D.2.(a) & III.D.3 ML20199B6921997-10-31031 October 1997 Aquatic Toxicity Monitoring Rept for Millstone Station Dsn 001B for Oct 1997 ML20211D2061997-09-17017 September 1997 NPDES Noncompliance Notification:On 970912,2,872 Gallons of Wastewaters from Tank Were Processed Through Demineralizers & Filters.Hydrazine Was Detected at 0.370 Ppm.Dept Will Be Notified When Concentration Is Greater than 350 Ppb ML20216F0571997-08-29029 August 1997 NPDES Noncompliance Notification:On 970811,gallons of Wastewaters from Aerated Waste Monitoring Tank Were Processed Through Demineralizers & Filters Associated W/Dsn 001B-2.All Limits Met by Wastewaters ML20198E9041997-07-31031 July 1997 Ecological Studies Proposed for 1998 at Mnps ML20216F2321997-07-31031 July 1997 Quarterly Aquatic Toxicity Monitoring Rept for Jul 1997 for Millstone Station ML20216F1601997-07-31031 July 1997 Monthly Discharge Monitoring Rept for Jul 1997 for Millstone Nuclear Power Station ML20198F5611997-06-30030 June 1997 Discharge Monitoring Rept for June 1997 for Millstone Nuclear Power Station ML20216E8341997-05-31031 May 1997 Corrected Page 7 & Water Quality Data Summary Table for NPDES Discharge Monitoring Rept for May 1997, for Millstone Nuclear Power Station ML20140D9571997-05-30030 May 1997 NPDES Noncompliance Notification:Between 970504-08, Discharges of Wastewater Containing Hydrazine Occurred.Due to Maint Activities,Normal Pathways Could Not Be Used & Waste Water Directed to RBCCW Sump ML20148G3061997-05-0909 May 1997 NPDES Noncompliance Notification:On 970412-0507,trace Amounts of Hydrazine in Wastewaters in HLW Drain Tanks Associated W/Dsn 001C-2 Discovered ML20149F8311997-04-30030 April 1997 NPDES Discharge Monitoring Rept, for Apr 1997,revised ML20148K6671997-04-30030 April 1997 Quarterly Aquatic Toxicity Monitoring Rept for April 1997 for Millstone, Discharge Serial Numbers 001A,001B,001C & 006 ML20140C5721997-04-30030 April 1997 Mnps Discharge Monitoring Rept for Apr 1997 ML20149K0921997-04-30030 April 1997 Quarterly Aquatic Toxicity Monitoring Rept - April 1997 Chemistry Rept: Part 3, for Discharge Number 001A ML20138E7901997-04-14014 April 1997 NPDES Noncompliance Notification:On 970319,approx 300 Gallons of Waste Water Was Drained from Millstone 3 Reactor Plant Closed CWS & Discharged Via Dsn 001C-9 ML20138E9771997-04-0909 April 1997 NPDES Noncompliance Notification:On 970315-29,wastewaters Containing Small Amounts of Hydrazine Detected in HLW Drains Tanks Associated W/Dsn 001C-2 ML20138H6971997-03-31031 March 1997 Mnps Monthly Discharge Monitoring Rept for March 1997 ML20141H3781997-03-31031 March 1997 NPDES Discharge Monitoring Rept for March 1997,revised ML20138F0271997-03-26026 March 1997 NPDES Noncompliance Notification:On 970218,normal Pathway Could Not Be Used for Discharge of Wastewaters Due to Maint Activities Associated W/Hxs at Unit 2 ML20137N5021997-02-28028 February 1997 NPDES Monthly Discharge Monitoring Rept for Feb 1997 ML20149F8281997-02-28028 February 1997 NPDES Discharge Monitoring Rept, for Feb 1997,revised ML20135A1951997-02-11011 February 1997 NPDES Noncompliance Notification:Between 970111-0201, Discharges of Wastewater Containing Trace Amounts of Hydrazine Occurred.Due to Maint Activities,Normal Pathway Could Not Be Used & Wastewater Directed to RBCCW Sump ML20149F8241997-01-31031 January 1997 NPDES Discharge Monitoring Rept, for Jan 1997,revised ML20140C4181997-01-31031 January 1997 Monthly Discharge Monitoring Rept for Jan 1997, Reissued & Revised ML20149F8191996-12-31031 December 1996 NPDES Discharge Monitoring Rept, for Dec 1996,revised ML20140F2281996-12-31031 December 1996 Annual Environ Protection Plan Operating Rept for Unit 3, Jan-Dec 1996 ML20140F2351996-12-31031 December 1996 Monitoring Marine Environ of Long Island Sound at Millstone Power Station,Waterford,Ct Annual Rept 1996 B16425, Annual Radiological Environ Operating Rept, Jan-Dec 19961996-12-31031 December 1996 Annual Radiological Environ Operating Rept, Jan-Dec 1996 ML20210H0281996-12-31031 December 1996 1996 Annual Rept Re Monitoring Marine Environ of Long Island Sound at Mnps ML20138H0421996-12-31031 December 1996 Annual Radioactive Effluent Rept for 1996 ML20149F8161996-11-30030 November 1996 NPDES Discharge Monitoring Rept, for Nov 1996,revised ML20135B2061996-11-22022 November 1996 NPDES Noncompliance Notification:On 961116,small Leak of Water Was Discovered at B Radiation Waste Test Tank & Discharged Into Catch Basin.Tank Contained Boric Acid at Time of Incident.Calculation Has Been Performed Re Acid ML20134M1701996-11-15015 November 1996 NPDES Noncompliance Notification:On 961106,discovered Water in Turbine Bldg Sump That Overflowed Onto Floor.Caused by Open Drain Line from C Hotwell.Water Remained in Sump & Trench & No Discharge to Environ Occurred ML20134K5181996-11-0505 November 1996 NPDES Noncompliance Notification:On 961030,identified Spill of Approx 200 Gallons of Rpccw Water,Flowing Into Floor Drain Leading to Auxiliary Bldg Sump.Jumper Hose Installed to Isolate Pipe for Maint ML20149F8131996-10-31031 October 1996 NPDES Discharge Monitoring Rept, for Oct 1996,revised ML20149F8091996-09-30030 September 1996 NPDES Discharge Monitoring Rept, for Sept 1996,revised ML20149F8061996-08-31031 August 1996 NPDES Discharge Monitoring Rept, for Aug 1996,revised ML20149F8041996-07-31031 July 1996 NPDES Discharge Monitoring Rept, for Jul 1996,revised 1999-08-27
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7590-01 UNITED STATES NUCLEAR 2EGULATORY COMMISSION NORTHEAST NUCLEAR ENERGY COMPANY DOCKET.NO.: 50-423 ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT The U. S. Nuclear Regulatory Commission (the Commission) is considering issuance of an Exemption from a portion of the reouirements of General Design
- Criterion 4 (10 CFR 50, Appendix A) to the Northeast Nuclear Energy Company (the applicant) for the Millstone Nuclear Power Station, Unit 3, loc ted at the applicant's site in Waterford, Connecticut.
ENVIRONMENTAL ASSESSMENT:
Identification of Proposed Action:
The Exemption would permit the applicant not to consider dynamic loading effects associated with postulated pipe breaks in eight locations per loop in the Millstone Nuclear Power Station, Unit 3 primary coolant system on the basis of advanced calculational methods for assuring that piping stresses would not result in rapid piping failure; i.e.,
pipe breaks.
Noticed in the Federal Register on May 29, 1985 (50 FR 21954) 8506130463 850605 DR ADOCK 05000423 PDR j
7F90-01 Need for Proocsed Action:
The proposed exemption is needed in order to permit the applicants not to install protec.tive devices such as pipe whip restraints and jet shields related to 32 postulated break locations in the primary coolant icws. Analysis snows tr.at pipe breaks, which these oevices are cesigned to pro-tect against, will not occur. On the other hand the presence of these devices increases inservice inspection time in the containment and their elimination would tend to lessen the occupational doses to workers and facilitate inservice inspections. General Design Criterion (GDC) 4 requires that structures, systems anc componer.ts important to safety shall be appropriately protected against dynamic effects including the effects of discharging fluids that may result from equipment failures, up to and including a double-ended rupture of the largest pipe in the reactor coolant system (Definition of LOCA).
In recent submittals the applicant has provided information to show by advanced fracture mechanics techniques that the detection of small flaws by either inservice inspection or leakage monitoring systems is assured long before flaws in the piping materials can grow to critical or unstable sizes which could lead to large break areas such as the double-ended guillotine break or its equivalent.
The NRC staff has reviewed and accepted the applicant's conclusion. Therefore,
+he NRC staff agrees that censideration of the dynamic loading effects associated with a postulated double-ended guillotine break in the primary pressure coolant loop piping need not be reouired as a design basis accident for pipe protective devices and jet sheilds. Accordingly, the NRC staff agrees that an exemption from GDC 4 is appropriate, t
7590-01 Environrental Impact of the Proposed Action:
The proposed Exemption would not affect the environmental impact of the facility.
No credit is given for the restraints and barriers to be eliminated in calculating accident doses to the environment.
While the pipe whip restraints and jet impingement barriers would minimize the damage from jet forces and whipping from a broken pipe, the calculated limitation on stresses required to support this Exemption assures that the probability of pipe breaks which could give rise to such foreas are extremely small; thus, the pipe whip restraints and jet shields would have no significant effect on overall plant accident risk.
The Exemption does not otherwise affect radiological plant effluent.
Like-wise, the relief granted does not affect non-radiological plant effluents, and has no other environmental impact. The elimination of the pipe whip restraints and jet impingement shields would tend to lessen the occupational doses to workers inside containment. Therefore, the Commission concludes that there are no significant radiological or non-radiological impacts associated with this Exemption.
_ The proposed Exemption involves design features located entirely within the restricted area as defined in 10 CFR 20.
It does not affect plant non-radicactive effluents and has no other environmental impact.
Therefore, the Commission concludes that there are no non-radiolooical impacts associated with this proposed Exemption.
-w t
7590-01 Since we have concluded that there are no measurable negative environ-mental impacts associated with this Exemption, any alternatives would not provide any significant additional protection of the environment. The alter-native to the compliance would be to require literal compliance with GDC 4.
Alternative Use of Resources:
This action does not involve the use of resources not previously considered in the Final Environmental Statement related to the-cperation of the Millstone Nuclear Power Station, Unit 3.
Acencies and Persons Contacted:
The NRC staff reviewed the applicant's request anc applicable documents referenced therein that support this Exemption for the Millstone Nuclear Power Station, Unit 3.
The NRC did not consult other agencies or persons.
FINDING 0F NO SIGNIFICANT IMPACT The Commission has determined not to prepare an environmental impact statement for this action.
Based upon the environmental assessment, we conclude that this action will not have a significant effect on the quality of the human environment.
Fcr details with respect to this action, see the reauest for exemption dated September 12, 1984 and additional information provided by the applicant in a letter dated October 18, 1964.
These documents, utilized in the NRC staff's technical evaluation of the exemption request, are available for public inspection at the Commission's Public Document Room, 1717 H Street,
)
a 7590-01 N. W., Washington, D. C., and at the Local Public Document Room at the Waterford Public Library, Rope Ferry Road, Route 156, Waterford, Connecticut. The staff's technical evaluation of the exemption request will be published with the exemp-tion and will also be available for inspect on at both locations listed above.
Dated at Bethesda, Maryland this.hdayof
,1985.
FOR THE NUCLEAR REGULATORY COMMISSION
/5 GeorgeW.Knightod,ActingAssistant Director for Licensing Division of Licensing DISTRIBUTION Docket File NRC PDR Local PDR PRC System NSIC
.LBf1 Rdg MRushbrook ELDoolittle-0 ELD, Attorney JKopeck TMNovak HThompson
- SEE PREVIOUS PAGE FOR CONCURRENCES LB#1:DL LB#1:DL OELD LB#1:DL AE
,:DL
- BJYoungblood T)Srak 03/14/85 03/14/85 05/21/85 05/21/85 05/p?/ /85