ML20085M592
| ML20085M592 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 11/11/1991 |
| From: | ENTERGY OPERATIONS, INC. |
| To: | |
| References | |
| RTR-NUREG-1437 AR, S, WM, NUDOCS 9111110203 | |
| Download: ML20085M592 (13) | |
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ENCLOSURES (O (imMnt.A A do U
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Attachment to APo-90/0235
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9p Page 1 of 15 Industry Survey In Support of License Renewal Rulemaking
- 1. WASTE MANAGEMENT QUESTIONS A. Spent Fuel QUESTION # 1
' Which of the following current techniques for at-reactor storage are you using and how?
(a) Re-racking of spent fuel (b) Deleted (c) Above ground dry storage (d) Longer fuel burnup (c) Other (please specify)
ANSWER (a) Re-racking of spent fuel - liigh density f uel storage racks have been installed in Grand Gulf's storage pools.
(d) Longer fuc1 burnup - Puel is currently being replaced on 18-month intervals.
QUESTION # 2 ,
Do you plan on continuing the use of these current techniques for at-reactor storage of spent fuel during the remaining time of your operating license or do you expect to change or modify them in some way?
M4ShTR (a) Re-racking of spent fuel - No further changes or modifications are anticipated for the fuel storage racks.
(d) longer fuel-burnup - An extension to the length of fuel cycles may be considered when it becomes technically and economically feasible.
NUMARCRP/SCMPFLR - 1
" Attaciunent to Apo-90/0235
.i Page 2 of 15 0
QUESTION # 3 Which of the following techniques for at-reactor storage do you anticipato using until off-site spent fuel storage becomes available and how?
(a) Re-racking of spent fuel (b) Deleted (c) Above ground dry storage (d) bonger fuel burnup s (e) Other (please specify)
ANSWER (c) Above ground dry storage - Grand Gulf is exploring the possibility of adding an above ground dry storage facility for use when the present storage pool reaches maximum capacity.
QUESTION # 4 Will the techniques described abovu be adequate for continued at-reactor storage of spent fuel for the operating lifetime of the plant, including a 20 year period of license renewal, or are you developing other plans?
ANSVER If above ground dry storage is psed, additional dry storage facilities may be constructed at Grand Gulf.
QUESTION # 5 Do you anticipate the need to acquire additional land for the storage of spont-fuel for the operating lifetime of the plant, including a 20-year period of license renewal? If so, how much land? When would L.is acquisition occur? Where?
ANSWER The need to acquire additional land for storage of spent fuel is not anticipated for the operating lifetime of the plant, including a 20-year period of licence renewal.
NUFJWCRP/SCMPFLR - 2
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s' Attachmont io AIO-90/0235 Pago 3 of 15 W
QUESTION 4 6 to you anticipato any addit ional connt ruct ion act ivit y on-sito, or immediatoly adjacent to the lower plant, annociated with the continued at-reactor nitrage of spent-fuol for the opetuting 1.ifetime of the plant, including a 20-year period of licenne renewal'l ANSWEH Yen QUESTION 8 'l If you annworod yes to question 6, briefly descrit>e thin construction activity.
ANSWER Construction activities would encompass all aspecto relating to building an atovo ground utorage facility.
D. - 1,ow-1.evel Radioactive Wast o Management QUESTION # 1 Under the current scheme for 11RW disposal (i.e. , LLRW tenendments Act of 1985 and regional compacts) is thero current.ly or will sufficient capacity for wasten generated during the licenso renewal period be available to your plant (s)? If so, what in the baniu for this conclucion? ,
ANSWER Grand Gulf is a member of the Southeastern Compact. Tho Barnwell wasto disposal sito is currently being used. The proposed North Carolina dir.posal site in tentatively echeduled for implementation in 1993. Sufficient wanto capacity will be made available in accordance with Southeastern compact agreements.
QUESTION N 2 If for any reason your plant in denied accens to a licensed dispacal nite for a short period of timo, what planc do you have for continued I.I.RW dispocal?
NUMARCRp/SCMPFLR - 3
d' Attachment to AIO-90/0235 page 4 of 15 ANSWER There are no other plans for continued LLRW disposal except at licensed waste disposal uites.
QUESTION # 3 In a couple of pages, please describe the specific methods 01 LLRW management currently utill:ed .,y your plant. What percentage of your current LLRW (by volume) in managed by:
t Id45WER (a) Waste Compaction?
Volume reduction, i.e., super-compaction and incineration, account f or 40% of our buried waste volume.
(b) Waste begregation Ithrough special controls or segregation at radiation check point)?
Solid waste generated within contamination areas is handled as contamin=.ted Dry Activated Waste (DAW) . Building trash is monitored for contamination prior to release from the controlled area.
(c) Decontamination of wastes?
Grand Gulf currently does not decontaminate any of its waste.
(d) Sorting of waste prior to shipment?
Grand Gulf sorts out metals f ron. DAW which is 3% of burial volume. ,
(e) Other (please identify)?
Rosin at the Grand Gulf Nuclear Station is currently processed by dowatering. This process volume accounts for 60% of the burial volume.
QUESTION # 4 In a couple of pages, please describe the anticipated plans for LLRW management to be utilized by your plant (s) during the remainder of the operating license and through the license renewal term. What percentage of your anticipated waste (by volume) w11]
be managed by:
NUMARCRP/SCMPFLR - 4
i Attachment to APo-90/0235 Pago 5 of 15 ANSWER (a) Waste compaction?
Grand Gulf will continuo to uso incineration and super-co paction of Dry Activated Waste (DAW) which lu 40% of wasto volume.
(b) Waste segregation (through special controls or segregation at radiation check pointe)?
2 o
Metals, which is 3% of waste volumo, will be removed from DAW waste stream. ,
(c) Decontamination of wastes?
Grand Gulf anticipates using metal smelting / reclamation which is 3% of the DAW volume.
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(d) Sorting of waste prior to shipment?
Motals will be removed from DAW wanto stream, l
(e) Other (please identify)?
i Resin vitrification for dewatered resin which in 60% of waste
- volume, e
i QUESTION # 5 3
Do you anticipato the need to acquire-additional land for tho
- storage of LLRW for the operating lifetime of the plant, including i
a 20-year period of license renewal? If so, how much land? When
' would this acquisition = occur?. Where? (If answer 19 "yoc", 3-4 sentences) ,
ANSWER L The need to acquiro additional land for storage of LLRW is not anticipated for the operating lifetime of the plant, including a 20-year period of licenso renewal.
. -QUESTION N 6 F
To provide information on the timing of futuro low-level wasto streams,__if you answered yes to question.#9, over what periods of timo are those activities contemplated?
ANSWER No major plant modifications are anticipated.
NUMARCRP/SCMPFLR - 5
Attachment to APO-90/0235 A
Page 6 of 15 QUESTION # 7 Do you anticipate any additional construction activity, or insnediately adjacent to the power plant site, associated with temporary LLRW storago for the operating lifetime of the plant, including a 20-year period of license renewal? (yes/no)
ANSWER No.
QUESTION # 8 If you answered yes to question 7, briefly describe this construction activity (e.g., storage areas for steam generator components or olher materials exposed to reactor environment).
ANSWER Nuno.
QUESTION # 9 To provide information on future low-level waste streams which may effect workforce levels, expo"ure, and waste compact planning, do you anticipate any major pl.nt modifications or refurbishment that are likely to generate unusual volumes of low-level radioactive waste prk r to, or during, the relicensing period for the plant?
If so, please describe those activities. Also, what types of modifications do you anticipate to be necessary to achieve license renewal operation through a 20-year license renewal term?
ANSWER No major plant riodifications are anticipated, i
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L NUWdtCRP/SCHPFLR - 6 L
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Attachment ' o APO-90/0235 Page 7 of 15 II. AQUATIC RESOURCE QUESTIONS QUESTION // 1 Post-licensing modifications and/or changes in operat ions of int nhe and/or discharge systems may have altered the ef f ect s of t he power plant on aquatic resources, or may have been made specif ically to mitignte irnpacts that were not anticipated in the design of the plant. Describe any such n,odifications and/or opeintienal changes to the condenser cooling water intake and discharf,e systems since the issuance of the Opernting License. 1 ANSWER No operational changes or modifications have been innde to either t he intake or discharge systems which would alter the effect on aquatic resources since issuance of Grand Gulf's Operating bicense.
QUESTION (/ 2 Summarize and desc e.be (or provide docun,entat ion of) any known impacts on aquatic resourcos (e.g., fish kills, vietations cf discharge permit conditions) or National Pollutant Discharge Climination System (NPDES) enforcemet actions that have occurred since issuance of the Opernting Licerse. Ilow have t'.iese ht:en r esolved or changed over time? (The resporse to thin question g,yould indicate whether impscts are ongoing or were the result of start-tWqroblems that werr subsequently resolved.)
ANSWER Pish kills reported at Grand Gulf since the issunnce of the Operating Licensn were associated with chemical spills or problems with water treatment injection systems. These problems have since been resolved and are not expected to reoccur.
19_85 _ Ush_ Kill _jftGGNd_Sg il@AtJias_11Lf Dat- Noverrber 4, , 98!
Cense Betz Power e 3641 discharge
Description:
Acheckvaiveonthe Bet z Powerline 3641 addit ion system failed, n~llowing Betz Powerline 3641, n ,icrobial cc>ntrol l ngent, to illl the piping system feeding the Plant Serv ice W.9 te r ( PSW) . The total amount of Detr Powerline 3641 disd arged was estimated between 40 and 100 gallons.
Approximat ely 29,000 fish were killed in Sediment B ns n result of this incident.
NUMARCRP/SCMPFhR - 7
Attachment to APO-90/0235 Page 8 of 15 Actions Taken: 1) Procedural requitements for chemical characterization of non-routine' discharges before they occur have been strengthened. 2) The Betz Powerline 3641 addition system was redesigned to ensure a faulty check valve would not lead to unmonitored releases to the PSW and 3) isolation valves were installed en outfalls to allow isolation of Sediments Basins A and D.
fleforence: 1985 Annual Environmental Operating Report 1987 - Fish Kill in GGNS SedlmcitLilnin_Il Date: November 20, 1987 Cause: Calgon 11-102 Biotido
Description:
During a planned bus outage, the valve which supplies Plant Service Water (PSW) Makeup to the fire Water storage tank opened. This resulted in continuous flow which overflowed to the storm drains leading to Sediment Basin B. Since the blocide injection system had not been secured, the overf low contained Calgon 11 102. The total, volume injected was approximately 32 gallons. An estimated 25,000 fish were killed as a result of this incident.
Action Taken: Administrative controls governing nonradiological discharges were changed to require suspension of blocide treatment during periods when PSW flow is diverted from its normal pathway.
Reference:
1987 Annual Environmental Operating Rnport Question # 3 Changes to tha NPDES _ permit during ope' ration of the plant could indicate whethe.: water quality parameters were determined to have no significant impacts (and were dropped from monitoring requirements) or were subsequently raised as a water quality issue. Provide a brief summary of changes (and when they occurred) to the NPDES permit for the plant since issuance of the Operating License.
ANSWER The NPDES permit has been revised and the application for reissuance is currently under review hy state regulators. Water quality monitoring requirements are expected to decrease which indicate that plant operation has had minimal or no impact on the aquntic environment.
NUMARCRP/SCMPFhR - 8
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Attachment to APO-90/0235 Page 9 of 15 i .
QUEST 1014 # 4 An examination of trends in the ef fects on aquatic resources nonitoring can indicate whether impacts have increased, decreased, or renain relatively stable during operation. Describe and sum:narize (or proviris documentation of) resultr of nonitoring of water quality and acua* N biota (e.g. , related to 11PDES permits, Environmental Tecnnical Specifications, site-specific nonitoring required by f ederal or state agencies). What trends are apparent over time?
A!43WER i
Chlorine minimization (Ref erence FES L.6.3, pg. 5-6), has caused a decrease in the ef fects on aquatic resources conitoring. Due to using alternative bloci. des which have been evaluated, tested and approved by the Stato prior to use, the plant has minimized the use of chlorine.
The development of a bicassay program to test blocides prior to use hau helped safeguard against events such as the cases (fish kills) deceribed in Question tio. 2. Due to these alternatives, plant operations has had no effect on the biota.
Total Sucponded Solids (TSS) results obtained in the sedimentation basins during construction were elevated, but have decreased and rennined stable since construction of Unit 1 has been completed and suspension of Unit 2 construction.
Biochemical Oxygen Demand (BOD) results for Unit 1 Sewage Treatment Plant were elevated during refueling outages, but remained stable thereafter.
Water quality monitoring results f rom January 1987 t o April 1990 are indicative of the previous years uince the plant was declared operational.
For aquatic biota, there was no monitoring requirements set forth in the 11PDES Permit or the Environmental Protection Plan (EPP) (Reference FES 5.6.4 and GGNS Operating License (OL) EPP 2.1); therefore, this part of the question is not applicable.
QUESTION # 5 Sunnarize types and numbers (or provide documentation) of organisms entrained and impinged by the condenser cooling water system since issuance of the operating License. Describe any seasonal patterns associated with entrainment and impingement. How has entrainment and impingement changed over time.
NUMARCRP/SCMPFLR - 9
Attachment to AIC-90/0235 Page 10 of 15 ANSWER Not applicable. Wat et is obt ained f rom a r adial well nyr. tem and not removed directly f rom the river; tbref ore, no impingement or entrainment of organisms will occur (Referenco FES S.6.1).
QUESTION W 6 Aquatic habitat enhancement or rectoration of f orts (e.g. , anadromous fluh runs) during operation may have enhanced the biological conununities in the vicinity of the plant. Alt ernatively, degradation of habitat or water quality may have resulted in loss of biological resources near the site. Describe any changes to aquatic habitats (bath enhancement aad degradation) in the vicinity of the power plant since the issuance of the Operating License including those that may have resulted in different plant impacts than those initially predicted.
AH9WER )
As responded in Question No. 2, fish have been killed in Sediment liasin il by Grand Guli Nuclear Station (GGNS) activities. These instances caused by GGNS have been mitigated by restocking affected areas on several occasions on an as-needed basis. There has not been any degradation of habitat or water quality since 1suunnte of the operating License.
QUESTION # 7 Plant operations may have had positive, negative, or no impact on the use of equatic resources by others, liarvest by commercial or recreational fishermen may be constrained by plant operation.
Alternatively, commercial harvesting may be relatively large compared
'lant. Describe (or provide withfishlossescausedbythe,husesof documentat ion for) other rtearb vaters affected by cooling water n y s te..u, (u.g. , swimming, boating, annual harvest by commercial and recreationai fisheries) and how t; :se impacts have changed since issuance of the Operating Licensq ,
ANSWER plant operations at Grand Gulf has had no impact on the use of aquatic resources by others.
NUMARCitP/SCMPFtk - 10
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'. At t achmont to Ap0-90/023fi Pago 11 of 15 QUESTION 4 0 ,
Describe other sourcos of impacts on aquatic resources (e.g., industrial discharges of the power plants, agricultural runoff) that could contribute to cumulat.ive impacts. What are the relativo contributions by parcent of these sourceu, including the contribution due to the power plant, to overall water quality .agradation and losses of aquatic biota?
ANSWER Approximately 10% of the plant's 5-mile radius is used for pasture and cropland, and approximately 104 is used for industrial uso. Since these sources have dif ferent dischargo- paths and runof f s, there is no cunulativo impact (Ref erence FER 2.2.3.2.1 and 4.1.4.2) .
The potential of agricultural effects on aquatic life is given by referenco in FER 2.2.3.2.1 which discusses the consequences of tho use of Endrin, a chlorinated hydrocarbon datormined to bo the cause of a catastrophic fish kill on the lower Mississippi River from Memphis to the river's mouth during 1963-1964.
QUESTION N 9 Provido a copy of your Section 316(a) and (b) Demonstration Report required by the Clean Wasto Act. What Section 316(a) and (b) determinations have been mado by the regulatory authoritlos?
ANSWER A copy of Grand Gulf's Demonstration Report Section 316 (a) and (b) is not available.
Regulatory authorities have decided that plant operations has had no -
impact as a rocult of thermal discharges. When the NPDES permit la reissued, upon review by state regulators, no thermal monitoring activities will be required except under special circumstancos of low river level or reduced operating power lovels.
NUMARCRP/SCMPFLR - 11
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l Attachmont to ApO-90/0235 Pago 12 of 15 III. SOCIDECONOMIC QUESTIONS i
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QUESTION N 1 To understand the importance of the plant and the dogrou of its socioeconomic impacts on the local region, ontimato the number of permanent workers on-sito for the most recent year for which data are l available. i ANSWER I
1989 estimate Permanent workers onsito - 995 QUESTION N 2 To understand the importance of the plant to the local region, and how that has changed over timo, estimato the average number of permanent workers on site, in five-year increments starting with the issuance of the plant's Operating License. If ponnible, provido this information for each unit at a plant site.
ANSWER 12-month ivorago Data available for last 12-months only.
Permanont workers onsite - 1,007 QUESTION N 3 To understand the potential impact of continued operation for an additional 20 years beyond the original licensing term, please provide for the following three cases:
(a) a typical planned outage; (b) an ISI outage; and (c) the largest single outage (in terms of the number of workers involved)_that has occurred to dato NUMARCRP/SCMPFLR - 12
Attacimmnt to APO-90/023h Page 13 of 15 i
An ent imat e of additional workern involved (for the entire outage and for each principal task), length of outage, months and year in which work occurred, and coat. Also, est im.st e occupatlonal dosen received by permanent and temporary workers during each principal task.
ANSWER Grand Gulf has completod, to date, three Refueling Outages that were similar in scope. The information provided in developed from Refueling Outage No. 3 activities.
(a) A typical planned outage ,
See Item C below for detailc.
(b) An ISI Outage IS1 activities have been performed as part of the scheduled refueling outage. To date, there have been no ISI findingu which warrents a special ISI Outage.
(c) The largest singic outage (in terms of the number of workers involved) that han occurred to date.
Data from Refubling Outage No. 3 activition are provided below.
Principal Taska l No. Of Workern Involved i
I e Refueling Activities j 22 I
e LP Turbine N1 \ 126 I
. sRva 1 23 l
e Valve Maintenance (500 l 100 Valves) l I
e Modifications j 487 (including ADilRS) I l
e llealth Physicista j 70 I
e Quality Control l 100 NUMARCRP/SCMPFLR - 13
Attachment to APO-90/0235 Page 14 of 15 I
General Dat a e Additional Workers involved.... 1296 e Length of outage............... 43 days 1 e Months and year................ March & April, 1989 e Cost........................... $26.8 Million 1
e Occupational Dosen Total Dose for RF03 = 335.139 REM Total Dose - Permanent Workers
- 75.500 REM !
Total Dose - Temporary Workora = 259.639 REM Tank Permanent Workers Temporary Workers Refueling 0.973 22.005 LP Turbine 0.129 0.287 SRV 3.760 B.370 Valve Maintenance 21.80G 34.108 Modifications 2.561 34.022 llcalty Physicists 12.220 20.114 Quality Control 0.610 38.183 QUESTION N 4 To understand the plant's fiscal importance to specific jurisdictions, for 1980, 1985, and the latest year for which data are availablu, estimato the entire plant's taxable assenced value and the amount of taxes paid to the state and to each local taxing jurisdiction. ,
ANSWER See Ad Valorem Tax payments for the Grand Gulf Nuclear Station on next page.
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NUMARCRP/SCMPFLR - 14
Attachment to A10-90/0235 Page 15 of 15 Entergy Operations, Inc.
i Ad Valorem Tax Payments For Selected Years
- Taxing Assessed Taxes Year Authority Value Paid 1980 Claiborne County 153,685,151 6,838,989 Warren County 255,198 13,556 Adams County 2,480,000 165,912 flinda County 21,301 861 City of Jackson 16,786 904 City of Vicksburg 8,907 463 Total 156,467,343 7,020,685 1985 Claiborne County 371,563,272 14,405,933 Warren County 400,130 22,054 Adamn County 9,630,000 490,167 Ilinds County 82,848 2,479 City of Jackson 73,831 5,953 City of Vicksburg 8,016 626 Total 381,750,097 14,927,212 1989 State of Mississippi 959,670,502 19,193,410 liinds County 10,723,344 686,110 Claiborne County 8,567,217 456,204 City of Jackson 401,544 46,888 City of Clinton 1,302 90 Total 979',372,909 20,382,702 tiUMARCRP/SCMPF1.R - 15
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