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Category:ENVIRONMENTAL IMPACT APPRAISALS
MONTHYEARML20202B9191997-11-25025 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 ML20126H6921992-12-30030 December 1992 Environ Assessment & Finding of No Significant Impact Re Issuance of One Time Exemption from 10CFR50,app J 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 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 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 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 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 ML20054E7241982-05-28028 May 1982 Eia Supporting Amends 84 & 77 to Licenses DPR-21 & DPR-65, Respectively 1997-11-25
[Table view] Category:TEXT-ENVIRONMENTAL REPORTS
MONTHYEARML20206J5161998-12-31031 December 1998 Annual Environ Protection Plan Operating Rept for Jan-Dec 1998 ML20206J5361998-12-31031 December 1998 Monitoring Marine Environ of Long Island Sound at MNPS,1998 Annual Rept 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 ML20247B6391997-12-31031 December 1997 Annual Environ Protection Plan Operating Rept for Jan-Dec 1997 ML20247B6411997-12-31031 December 1997 Monitoring Marine Environ of Long Island Sound at Millstone Nuclear Power Station Waterford,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 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 ML20148K6671997-04-30030 April 1997 Quarterly Aquatic Toxicity Monitoring Rept for April 1997 for Millstone, Discharge Serial Numbers 001A,001B,001C & 006 ML20149F8311997-04-30030 April 1997 NPDES Discharge Monitoring Rept, for Apr 1997,revised 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 ML20141H3781997-03-31031 March 1997 NPDES Discharge Monitoring Rept for March 1997,revised ML20138H6971997-03-31031 March 1997 Mnps Monthly Discharge Monitoring Rept for March 1997 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 ML20140C4181997-01-31031 January 1997 Monthly Discharge Monitoring Rept for Jan 1997, Reissued & Revised ML20149F8241997-01-31031 January 1997 NPDES Discharge Monitoring Rept, for Jan 1997,revised ML20210H0281996-12-31031 December 1996 1996 Annual Rept Re Monitoring Marine Environ of Long Island Sound at Mnps B16425, Annual Radiological Environ Operating Rept, Jan-Dec 19961996-12-31031 December 1996 Annual Radiological Environ Operating Rept, Jan-Dec 1996 ML20140F2351996-12-31031 December 1996 Monitoring Marine Environ of Long Island Sound at Millstone Power Station,Waterford,Ct Annual Rept 1996 ML20140F2281996-12-31031 December 1996 Annual Environ Protection Plan Operating Rept for Unit 3, Jan-Dec 1996 ML20149F8191996-12-31031 December 1996 NPDES Discharge Monitoring Rept, for Dec 1996,revised 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 ML20149F8001996-06-30030 June 1996 NPDES Discharge Monitoring Rept, for June 1996,revised ML20149F7961996-05-31031 May 1996 NPDES Discharge Monitoring Rept, for May 1996,revised ML20149F7931996-04-30030 April 1996 NPDES Discharge Monitoring Rept, for Apr 1996,revised ML20149F7871996-03-31031 March 1996 NPDES Discharge Monitoring Rept, for Mar 1996,revised ML20129F7821996-03-20020 March 1996 Fall 1995 - Winter 1996 Refueling Outage at Millstone Nuclear Power Station Unit 1 & Extended Shut Down of All Mnps Units Relative to 1996 Larval Winter Flounder Season 1998-12-31
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e 7590-01 UNITED STATES NUCLEAR REGULATORY COMMISSION ;
NORTHEAST NUCLEAR ENERGY COMPANY MILLSTONE NUCL_ EAR POWER STATION,, UNIT NO. 3 DOCKETNO._50,,4M ENVIRONMENTAL ASSESSMENT AND FINDING OF NOSIGNIFICANTIM, pag A
The U. S. Nuclear Regulatory Comission (the Commission) is considering issuance of an exemption from the requirements of Appendix J to 10 CFR Part 50 and an associated license amendment to Northeast Nuclear Energy Company, et al.
(the licensee) for the Millstone Nuclear Station, ULit No. 3, located at the licensee's site in New London County, Connecticut.
EMYIRONFENTAL ASSESSMENT Identification of Proposed Action:
The licer.see is requesting an exemption from Paragraph III.A.3 of 10 CFR Part 50 Appendix J "Primary Reactor Containment Leakage Testing for Water-Cooled Power Reactors" to permit the use of the mass-peint method of primary contairsent leakage testing. In 1973, Appendix J was issued to established requirements for primary containment leakage testing and incorporated by reference ANS! N45.4-1972, "Leakage Rate Testing of Containment Structures for Nuclear Reactors." This standard requires that containment leakage caleclations be perfomed by using either the point-to-point method or the total time method. .
At this tine, a licensee who wishes to use mass-point must submit an application for exemption from the Appendix J requirement that containrent integrated leak rate tests will conform to ANSI N45.4 The exemption proposed 8811170414 881114 DR ADOCK 0500 Q3
, -2 v by the licensee would be granted until a proposed revision to Appendix J, which will permit use of the mass-point method, becomes effective. In the mass-point ,.
method, the mass of air in containment is calculated and plotted as a function
[
of time and leakage is calculated from the slope of the linear least squares.
With the present developments in technology, the mass-point method has gained increasing recognition.
The superiority of the :nass-point method becomes apparent when it is conpared with the two other methods. In the total time method, a series of leakage rates is calculated on the basis of air mass differences between an initial data point and each individual data point thereafter. If for any rewson (such ae instrurent error, lack of temperature equilibrium, ingassing or outgassing) the initial data point is not accurate, the results of the test will be affected. In the point-to-point method, the leak rates are based on the na!4 difference between each pair of consecutive points which are then averaged to yield a single leakage rate estimate. Fathen,atically, this can be shown to be the difference between the air mass at the beginning of the test and the air mass at the end of the tett expressed as a percentage of the containment air mass. It follows from the above that the point-to-point method ignores any mass readings during the test and thus the leakage rate is calculated on the basis of the difference in mass between two reasurenents taken at the beginning and at the end of the test, which are 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> apart.
The licensee's request and bases for exemption are cor)tained in a letter dated August 11, 1988.
, The licensee has also requested changes to the Technical Specifications that are related to the containment leak rate test. By arplication for license amendment dated August 11, 1988, the licensee requested changes to Millstone Unit 3 Technical Specification (TS) 4.6.1.3, "Containment Leakage " to allow for use of ANSI /AN3 Standard 56.8-1981 for "mass-point" detemination of containment leakage rate.
A "Notice of Consideration of Issuance of Amendment to Facility Operating License and Proposed No Significant Hazards Consideration Determination ar.d Opportunity for Hearing" regarding the proposed changes to TS 4.6.1.? was published in the FEDERAL REGISTER on September 21, 1988 (53 FR 36672).
The Need for,,T,he Prop,0,seQct, ion:
The exemption and associated license amendment are needed to allow use of the mass point analysis method at Millstone Unit No. 3.
Enviror. men,t,al,Jmpactsoftheoroposed Action:
The erraticism of the total time method creates a higher probability of unnecessarily failing a containment integrated leakage rate test (note that the calculational procedure is independent of containn,ent tigh+.ncss) possibly resulting in increased test frequency, critical path outage time, and exposure to test personnel.
Radiological releases will not be greater than previously detemined, nor does the proposed exemption otherwise affect r.',diological plant effluents, or have any other environmental impact. Therefore, the Comis.sion concludes that there are no measurable radiological or non-radiolostcal environmental impacts associated with the proposed exemption and associated license amendment,
l
', .a.
Alternatives to the Prop ged Action:
It has been concluded that tFere is no measurable impact associated with the proposed exemption and asse,ciated license amendment; any alternatives to the exemption and associated license amendnent would have either essentially the same or greater envirennental impact, i
Alternative Use of Resources:
- This action does not involve the use of any resources different from or 2
- beyond the scope of resources used during normal plant operation, which were
. assessed in the Final Environrental Statenent relating to plant operation, i t NUREG-1064, dated December 1964, t
i Agencies _and Persons Consulted: !
The Comission's staff reviewed the licensee's request that supports the proposed exemption. The staff did not consult other agencies or persons.
i FINDING OF _p,0,SIGNIFI,CApT, If, PAC,T Based upon the foregoing environmental assessment, the Comission concludes that the proposed action will not have a significant effect on the quality of I the hunan environment. Accordingly, the Comission has detemined r.ot to prepare l an environmental inpact statement for the proposed exemption and associated license amendment. i i
For further details with respect to this action, see the request for :
exemption and applich'. ion for license amendment dated August 11, 1988. A :opy !
of the above is available for public inspection at the Comission's Public f
f i
4 l
i 4 i*
, Document Room, The Gelman Building, 2120 L Street, NW, Washington, C.C., 20555, i
and at the local public document room located at the Waterford Public Library, 49 Rope Ferry Road, Route 156, Waterford, Connecticut 06385.
Dated at Rockville, Maryland this 14th day of November , 1988, FOR THE NUCLEAR REGULATORY COMMISSION
,oh IF. Stolz, Direct '
Pr ject Directorate I-4 vision of Reactor Projects-l/II Of fice of Nuclear Reactor Regulation i
1 I
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