ML20151M441
| ML20151M441 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 12/31/1987 |
| From: | Gucwa L GEORGIA POWER CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| SL-4450, NUDOCS 8804250054 | |
| Download: ML20151M441 (13) | |
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D1 CLOSURE ANNUAL EtNIRONMENTAL OPERATING REPORT FOR 1987 SPECIFICATIONS In accordance with Section 5.4.1 of the VEGP non-radiological Environmental Protection Plan (EPP), Appendix B to Operating License No. NPF-68, this report contains the following inform 3 tion related to Plant Vogtle operations for the calendar year 1987.
A. Sumaries and analyses of the results of the environmental protection activities required by Subsection 4.2 of the EPP.
B. Comparisons of the 1987 monitoring activities with pre-operational studies, operational controls and with previous monitoring reports.
C. An assessment of the observed impacts of plant operations on the environment.
D. A list of EPP non-compliances and the corrective actions taken to remedy them.
E. A list of changes in station design or operation, tests, and experiments made in accordance with subsection 3.1 of the EPP which involved a potential unreview d environmental question.
F. A list of non-routine reports submitted in accordance with Section 5.4.2 of the EPP.
DISCUSSION A. Sumaries, Analyses, and Interpretation of the results of Environmental Monitoring Activities
- 1. Aquatic Monitoring - h ere was no NRC requirement to perform aquatic monitoring in 1987. Liquid effluent monitoring was performed under the State of Georgia NPDES Permit No. CA 0026786,
- 2. Terrestrial Monitoring - Not required.
- 3. Maintenance of Transmission Line corridors
- a. There was no herbicide use on the VEGP-related transmission corridors during the year 1987.
- b. There was no clearing or maintenance-related activities within
! the Ebenezer Creek or Francis Plantation areas in 1987.
l c. Maintenance activities within the designated culturr.1 properties located on the VEGP transmission corridors were conducted in accordance with the "Cultural Resource Management Plan - VEGP Associated Transmission Routes Operations and Maintenance". This plan was developed by Georgia Power Company in conjunction with, and has the approval of the State of Georgia Historic e l
Prem,ervation officer. ,35 t 8804250054 871231 '
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WCICSURE (C0tRI!NED)
ANNUAL EINIRONMDRAL OPERATING REPORT IVR 1987
- d. Noise Monitoring - There were no noise complaints received by Georgia Power Company during 1987 in association with the VEGP-related high voltage lines.
D. Comparisons of the 1987 Monitoring Activities with Pre-Operational Studies, Operational Controls and Previous Monitoring Reports.
Because no routine non-radiological environmental monitoring programs were required in 1987, these comparisons were not required to be performed.
C. An Assessment of the Observed Impacts of Plant Operations on the Environment W ere was no significant adverse environmental impact associated with P1. ant Vogtle operations during calendar year 1987.
D. A List of EPP Non-compliance and the Correctivo Actions Taken to Remedy hem There were no EPP non-compliances at VEGP during 1987.
E. A List of Changes in Station Design or Operation Test and Experiments Made in Accordance with Subsection 3.1 of the EPP Which Involved a Potential Unreviewed Environmental Duestion
- 1. On July 17, 1987, the Georgia Power Company Environmental section was requested by VEGP management to evaluate for environmental impact the substitution of liquid sodium hypochlorite for gaseous chlorine in the Vogtle chlorination systems. After review it was determined by Environmental Affairs that the proposed operational change did not meet the definition of an unreviewed environmental question. Supporting documentation can be found in Appendix 1.
- 2. During August of 1987, the Georgia Power Company Environmental Affairs section was requested by VEGP management to evaluate the environmental impact which may be associated with increasing the circulating water system's cycles of concentration from 4 to 10. After review it was determined by Environmental Affairs that the proposed operational change would not result in a significant adverse environmental impact as defined in Section 3.1 of the EPP and should not be classified as an unreviewed environmental question. Supporting documentation can be found in Appendix 2.
F. A List of Non-Routine Reports Subnitted in Accordance with Sectica 5.4.2 of the EPP There were no non-routine events reported in 1987.
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DiCLOSURE (C0tRINUED)
APPDOIX 1 DNIRCt@tDEAL RE. VIEW Or liYIO'.HIORITE SUBSTI'IVIION
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404 554 9961 APPENDIX 1 gm v.go, prot.ci ENVIRONMENTAL REVIEW 0F Georgia Power HYP0 CHLORITE SOLUTION '
July 17,1987 RE: Plant Voctle Units 1 & 2 Use of Liquid Sodium Hypochlorite l
} u( t File No: X8BB02 j Log No: NOC-00440 =di Security Code: NC 907 FROM: G. Bockhold IN 84.CET:' T0: B. Woodall Please e oluate the impact to the environment due to VEGP stopping the use of gaseous chlorine for all chlorinations on site i 1 - and starting to use liquid sodium hypochlorite for all chlorinations. We currently have a 6,000 gallon storage tank at the Unit one cooling - tower which needs to be evaluated for potential spills. We inteno l to chlorinate monthly during the clam season to maintain a residual of ^1 ppm for 5 consecutive days. The rest of the time the normal l chlorination practicer of 0.5 ppm maximum will be maintained. I If more infonnation is neeoed, please contact Bob Hand at i exten,iion 3279. l CH/mh ,.
${dD.Hallman r
g(,y hoe, h No B. Hand NORMS l i Al-1
APPENDIX 1 (CONTINUED) Interoffice Cerrespendence ENVIRONMENTAL REVIEW OF GeorgiaPowerA
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HYPOCHLORITE SOLUTION August 3, 1957 SODIIM BYPOCERITE REVIDi Plant Vogtle Files X8BE01 Log: PSE 1076 Mr. George Dockhold: In accordance with section 3.1 A mendix B of the VEGP operating license, the design change involving tw substitution of sodium hypochlorite for chlorine gas as a biocidal agent in the plant's circulating water system was reviewed for adverse envircomental impact in the following areas.
- 1) Spill or Leak Potential. Airborne chlorine health and environmental hazards due to leaks or spills are greatly reduced using the sodium hypochlorite due to the low volatility of the chlorine within the liquid. Possible threats of groundwater and surface water contamination are reduced using the hypochlorite solutien because of the ability to provide secondary contairunent around the j liquid.
- 2) oaerational Concerns. Se property by which both c uorine gas and the hypochlorite solution possess biocidal qualities is based on the same chemical principle; the disassociation of the chlorine molecule in water to ' produce fras chlorine radicals. However, because the 1ypochlorite solution is only 154 by weight chlorine seven times the amount by weight of the hypochlorite will be needed to achieve the same chlorine l residual that was achieved using chlorine gas. Se .
j dechlorination system will remove both substances with l the same efficiency and should not be affected by the ' change. l
- 3. Increased salt Drift. Se injection of 150 gallens of 154 sodium hypochlorite for cne hour daily would increase the total dissolved solids (TDS) content of the d ag tower by 3.3 pga (sodium chloride) daily. Se increase would not be cumulative due to the fact the circulating water cooling tower basin volume is exchanged every 20.6 hrs. at blowdown rate of 5,000 gpn.
S e VEGP final Environmental statement (IES) staten that the total mineral depositon rate for the circulating water cooling towers would be .18 kg/ha-mo of which less than .045 kg/ha-ino is sodium chloride. nese calculations were based on circulating water 2Ds valve of 250 ppn. We addition of 3.3 ppn sodium chloride would have no measurable effect on the total mineral deposition valves. Se sodium chloride value would remain well below the 1 to 2 kg/ha-ac stated in the NRC l Regulatory Guide NURIrr-0555 section 5.3.3.2 to be l "generally not damaging to plants." m Al-2
e .. - APPENDIX 1 (CONTINUED) ENVIRONMENTAL REVIEW OF
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HYPOCHLORITE SOLUTION i 1 J In summary the design change does not meet the criteria of an "Unreviewed Environmental Question" as defined in Section 3.1 Appendix B of the VEGP operating license. If you have any questions concerning this evaluation contact Darahyl Dennis at Extension 8-526-7064.
- sp W. R.' Woodall, Jr.
cc: Messrs. Don Hopper Steve Ewald Don Hallman S. F. D'Amico EV 917-181 l l l 1 i 6 Al-3
ENCLOSURE (COtRINUED) lg APPENDIX 2 DNIRCNMENTAL REVIEW OF THE VEGP OPERATIONAL CHANGE INVOLVItP3
'AN INCREASE IN THE CIRCULATING WATER SYSTEM'S SOLIDS CYCLE 3 OF CONCDERATION
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M" APPENDIX 2
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ENVIRONMENT E REV!EW 0F THE VEGP Post 0"y'ce Box , t600,"$$87M OPERATIONAL CHANGE INVOLVING ' 4o4 554 9961 AN INCRE4TEli THE CIRCULATING - l.'ATER SYSTEM'S SOLIDS CYCLE 0F CONCENTRATION L w . e m .ci GeorgiaPower RE: Plant Vogtle - Units 1 & 2 Circulatin'g Water Cycles of Concentration - File No: X8BB02 f P Log No. NOC-00463 Security Code: NC 1) FROM: G. Bockhold 'I N T0: W. R. Woodall IIADl0 LOGICAL SAFET Please evaluate the impact to the environment due to VEGP increasing the cycles of concentration in the circulating water systems from 4 cycles to 10 cycles. The purpose is to optimize the chemical treatment of the circulating water to keep the cost as low as practicable and yet still effectively maintain the quality of the cooling tower fill without damaging the condenser tubes. If more infonnation is needed, please contact Bob Hand at extension 3279. xc: S. C. Ewald f D. M. Hopper . . ,- '. - D. F. Hallman bi R. C. Hand ' i NORMS i { l e ( A2-1
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inter ffica Ccrrespondence Georgia Power d November 2, 1987 APPENDIX 2 (CONTINUED) ENVIRONMENTAL REVIEW 0F THE VEGP OPERATIONAL CHANGE INVOLVING A~N INCREASE IN THE CIRCULATItjG cul Water System Cycle of Concentration increase WATER SYSTEM'S SOLIDS CYCLE File No. X8BE01 0F CONCENTRATION PSE 1986 MR. D. M. HOPPER: his evaluation is in response to Mr. George Bockhold's request to determine if I a proposed operational change involving an increase in the solids cycle of concentration to ten of the circulating water system would constitute an unreviewed environmental question as defined in the Vogtle Environmental Protection' Plan. he operational change is being initiated by the chemistry l group to optimize their chemical treatment program and protect the structural l integrity of the cement fill material in the cooling towers. l We have reviewed the proposed ac,tivity and determined that the increase in ! cycles of concentration will not result in a significant or even measurable adverse environmental impact as defined in Section 3.1 of the Vogtle Environ-mental Protection Plan and should not be classified as an unreviewed environmental question. h e proposed change in the circulating water system operation would affect three l operational aspects addressed by the Vogtle Final Environmental Statement (FES) which were previously evaluated by the NRC or the Atomic Safety and Licensing Board. Wese operational aspects are as follows:
- 1. Cooling Tower Mineral Drift Deposition l
! In Appendix K of the FES it was stated that at a cycle of concentration of 4, mineral drift deposition frca the cooling towers would be a maximum of
.18 kg/ha-mo of which less than .045 is Nacl. Attached is a letter from l
Dr. Morton I. Goldman of NUS Corporation who is the author of the mineral drift deposition models for the vogtle cooling towers. We letter states that mineral deposition rates are directly proportional to cycle of concen-l trations. his indicates that the Vogtle cooling tower mineral deposition ' rate at a cycle of concentration of ten would be a maximum of .45 kg/ha-mo of whicll 4 Hrr kg/ha-mo would be Nacl. Since it is stated in Nureg-0555 sec 5.3.3.2 that Nacl deposition rates of up to 2 kg/ha-mo is generally damaging to plants, no significant increase above that previously evaluated in the FES will occur. %e ASLB reviewed the highest predicted salt deposition value of .15kg/ha-mo near the site boundary as well as the higher erroneous 1.58 kg/ha-mo value. We changes in the cycle of concentration will not significantly increase any adverse environmental impact considered by the ASLB, since the levels associated with the proposed change will still fall well below the levels previously evaluated by the ASLB.
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APPENDIX 2 (CONTINUED) -
' ENVIRONMENTAL REVIEW OF THE VEGP OPERATIONAL CHANGE INVOLVING _ _
AN INCREASE IN THE CIRCULATING WATER SYSTEM'S SOLIDS CYCLE _ 0F CONCENTRATION
- 2. Liquid Effluent Water Quality he values for the predicted liquid effluent water quality survey listed in Table 4.5 of the FES will be proportionally higher for circulating water blowdown at a cycle of concentration of ten, with the exception of flow.
Wese higher values will not produce a significant increase in any adverse environmental impact associated with the previously reviewed plant's liquid effluent quality.
- 3. Decreased Cooling Tower Blowdown Volume me increase in cooling tower cycle of concentrations will reduce the blowdown per tower from 5,000 gpn to 1,630 gpn. %e resulting decrease in available dilution flow will be supplemented by the use of the liquid radwaste dilution line if required. he decrease in cooling tower blowdown should also result in a discharge thermal plume of a smaller area than originally reported.
Although the increase in cooling tower cycle of concentrations would result in changes of some previously evaluated issues in the FES, these changes do not result in a significant increase in any environmental impact, thus should not be classified as an unrevired Environmental Question as defined in Section 3.1 of the Vogtle Environmental Protection Plan. In accordmce with Section 3.1 of the Vogtle EPP, this assessment will be included in the Vogtle Annual Environmental Operating Report. If you have questions or consnents, please advise. s W. R. Woodall, Jr. NDO:pd xc: G.B. D.F.H. L.T.G. D.C.D. EV 917-181 l A2-3
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. APPENDIX 2 (CONTINUED) . - - ENVIRONMENTAL REVIEW 0F THE VEGP OPERATIONAL CHANGE INVOLVING COFFOPA M AN INCREASE IN THE CIRCULATING e,e m. m WATER SYSTEM'S SOLIDS CYCLE WM " " " 0F CONCENTRATION h40frTU N i. - " N. Se. D.
July 24, 1987 MIG-723 Mr. Dan Warren Southern company Services, Inc. P.O. Box 2625 Birmingham, AL 35202
Dear Dan:
This is to confirm our telephone conversation of today in l respect to the effect of changes in the cooling tower concen- ! tration factor on drift deposition density as presented in l our report, "An Evaluation of Cooling Tower Drift Deposition i at the Vogtle Electric Generating Plant" (NUS-4662), dated ! January 29, 1985. l As I indicated, the deposition density is directly l proportional to the cooling tower emission rate (source term); i.e., a change in concentration factor which increases the solids content in the circulating water (and drift) will in-crease the drift deposition density by the same ratio. Thus a threefold increase in dissolved solids will result in a three-I fold increase in deposition density over that presented in our report. If we can be of further assistance, please do not hositate to contact me. Very truly yours, 11 ifWW Morton . Goldman MIG:pg
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~' i - 'i Ge org:a Power Company
'W6 333 PlCdmont Avance
.( Attanta, Georg'a 30308 -
.Te:ephone 404 5266526 Ma,hng Address, Post Off:ce Box 4545 A:tanta. Georg:a 30302 L
Georgia Power L T. Gucwa - the southern electrc system Manager Nuclear Sa'ety and Ocensing. SL-4450 0868m X7GJ17-V650 April 15, 1988 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Hashington, D.C. 20555 PLANT V0GTLE - UNIT 1 NRC DOCKET 50-424 OPERATING LICENSE NPF-68 ANNUAL ENVIRONMENTAL OPERATING REPORT Gentlemen: In accordance with Section 5.4 of the Vogtle Electric Generating Plant Environmental Protection Plan (Appendix B to Operating License NPF-68), enclosed is the Annual Environmental Operating Report for 1987. Should there be any questions in this regard, please contact this office at any time. Sincerely, L. T. Gucwa JAE/im
Enclosure:
Annual Environmental Operating Report for 1987 c: Georaia Power Comoany Mr. P. D. Rice Mr. G. Bockhold, Jr. GO-NORM 3
.U. S. Nuclear Regulatory Commission Dr. J. N. Grace, Regional Administrator Mr. J. B. Hopkins, Licensing Project Manager, NRR (2 copies)
Mr. J. F. Rogge, Senior Resident Inspector-0perations, Vogtle h
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ENCLOSURE r i l PLANT VOGTLE - UNIT 1 t NRC DOCKET 50-424 4 OPERATING LICENSE NPF-68 ANNUAL DNIRONMENTAL OPERATING REPORT FOR 1987 J P A a Y
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