ML19318D059
| ML19318D059 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 06/30/1980 |
| From: | SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | |
| Shared Package | |
| ML19318D058 | List: |
| References | |
| ENVR-800630-01, ENVR-800630-1, NUDOCS 8007070270 | |
| Download: ML19318D059 (21) | |
Text
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VIRGIL C. SUMdER NUCLEAR STATION f OPERATING LICENSE ENVIRONMENTAL REPORT AMENDMENT 5 INSTRUCTION SHEET 4
The following instructional information and check list is being furnished i O to help insert Amendment No. 5 into the Virgil C. Summer Nuclear Station 3
OLER.
I Since in most cases the original OLER contains information printed on both sides of a sheet of loose leaf paper, a new sheet is furnished to replace sheets containing superseded material. As a result, the front or back of a sheet may contain information that is merely reprinted rather than changed.
Discard the old sheets and insert the new sheets, as listed below. Keep these instruction sheets in the front of Volume I to serve as a record of changes.. ,
I l
i REMOVE _ INSERT Pages 3.6-9 Pages 3.6-9 l i 3.7-1 - 3.7-2 3.7 3.7-2 6.1-3 - 6.1-4 6.1 6.1*-4
! 6.1-5 - 6.1-6 6.1 6.1-6 i
6.1-7 - 6.1-8 6.1 6.1-8 i 6.1-9 - 6.1-10 6.1 6.1-10 6.1-37 6.1-37 1 6.1-39 6.1-39 6.1-55 6.1-55 i 6.1-56 6.1-56 I
- Figure 6.1-1 Figure 6.1-1 i
! Pages 7.1 7.1-14 Pages 7.1 7.1-14 7.1-22 7.1-22 7.1-25 7.1-25 i1 C:)-
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AMENDMENT 5
.,847791627q) JUNE 1980
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1 TABLE 3.6-1 i
l CilARACTERIST1CS OF STEAM CENEPATOR BLOWDOWN (Based on continuous dis:harge) i Concentration (mg/1) Average Discharge l Constituent Maximum U) Average (Ibs/yr) pil 0 25 C 10.0 8.9 N/A
- Free flydroxide (CACO3 ) 0.15 0.15 82 l Sodium 0.5 0.1 55
' Chloride 0.3 0.15 82 Ammonia 0.5 O.25 137 3
Ilydrazine 150 Negligible Negligible Silica 5 1.0 548
! Iron 1.0 0.5 273 I
Copper 1.0 273 Suspended Solids 0.5 l5
- 9.0 3.0 Flow (gpm) 250 125 N/A l
(1) Maximum valves are based on startup conditions which may occur once per year, j
discharggng approximately three steam generator volumes - equivalent to l 0.4 x 10 lb/yr.
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3.6-9 i
! AMENDMENT 5 ;
JUNE 1980 ["
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O V
3.7 SANITARY AND OTHER WASTE YSTDIS 3.7.1 SANITARY TREATMENT FACILITIES n) u The sanitary system handles domestic wastes from the rest room and cafe-teria facilities.
q The waste is collected in a lift station and pumped to the waste treat-ment area. Treatment consists of aeration followed by stabilization and chlorination. The effluent from the chlorine contact tank is combined with the other wastes and discharged to the Monticello Reservoir via the circulating water discharge channel.
The following criteria were used as a basis for design of the sanitary waste system:
- 1. - Plant work force 225 maximum, including refueling Q personnel
- 2. Gallons per capita per day 100
- 3. Founds of BOD per capita 0.20 The following is an estimate of the characteristics of the anticipated domestic sewage flow:
- 1. Solids Concentrations (estimated based on normal domestic sewage) l
- a. Settlable 20 ml/l .
l
- b. Suspended solids 200 mg/l (Oj c. Dissolved solids 800 mg/l ,
- d. Floating (oils and greases) 50 mg/l
- 2. Oxygen Demand of Waste l 1
- a. BOD 240 mg/l 5
q ,/ b. COD 800 mg/l l
- 3. Color That of normal domestic sewage '
- 4. pil That of normal domestic sewage 1
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v 3.7-1 l l
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- 5. Alkalinity 200 mg/l
- 6. Non-biodegradable organic Trace
- 7. Surfactants That of normal domestic sewage
- 8. Phosphorus 8.0 mg/l
- 9. Nitrogen 4.0 mg/l
- 10. Toxic compounds None anticipated The waste is normal domestic sewage and can be treated by conventional methods. Secondary treatment is provided by the use of an aerated lagoon, followed by a stabilization pond.
The stabilization pond was sized assuming a loading rate of 15 pounds of BOD 5
/ cre/ day. The effluent from this stabilization pond is chlorinated before combination with effluents from the other treatment facilities and discharge to Monticello Reservoir.
Based on the assumed loadings, the percentage of reductions and final ef-fluent charact -istics are anticipated as follows:
Percent Concentrations Reduction (mg/1)
Suspended Solids 80 30 l5 BOD 90 25 5
Dissolved oxygen Not applicable 5 Chlorine residual Not applicable 0.5 3.7.2 STORM DRAINAGE 0
Plant site drainage, with the exception of rain falling upon a thin strip of land along the service water pond, is intercepted and conducted away from the Monticello Reservoir and the service water pond, to the h
south and west of the plant. The storm drainage system is designed for O
3.7-2 AMENDMENT 5 l JUNE 1980
. Water quality parameters'and their frequency-of measurement for each station are shown.in Table 6.1-1. .In addition to these measurements,
-temperature, conductivity,' transparency, dissolved oxygen, and pH will be monitored at biological sampling stations during the field surveys.
Water quality parametcrs to be measured as part of the abiotic monitor-ing program were selected primarily for some or all of the following reasons:
- 1. -The parameters will provide a measure of existing environmental levels of materials which may be released in various quantities from the Virgil C. Summer Nuclear Station.
- 2. Baseline or construction data are available for comparison with preoperational' data.
- 3. The parameters are particularly important for assessment of the 1
well being of biological communities.
The State of South Carolina has prescribed concentration limita-
~
4.
tions for those prameters in state surface waters.
O Measurement of'the selected parameters will provide the basis for a com-prehensive asscasment of the impact of plant operation on the water
' quality in the study area.
Water samples will be collected with a Van Dorn sampler. If appro-priate, preservatives will be added to the samples before they are sent to the laboratory for analysis. Instrumentation and laboratory tech-
, niques.used in measuring each parameter are indicated in Table 6.1-1.
6.1.1.2 Ecological Parameters ,
6.1.1.2.1 General Monitoring Program 1
A monitoring program similar to the baseline study will be implemented in Parr and Monticello Reservoirs and in the Broad River near the Parr AMENDMENT 1 6.1-3 OCTOBER 1978
O Hydroelectric Project facilities. This program will be instituted one year prior to the initial commercial operation of the Virgil C. Summer Nuclear Station.
O The general field monitoring program will involve in-depth, seasonal field studies of the following biological parameters: vascular hydro-phytes, phytoplankton, zooplankton, ichthyoplankton, benthic macroin-vertebrates, and fish. The planned scope of the biological sampling program and the primary list of references for species identification 3
are summarized in Table 6.1-2. Important spawning areas will be iden-tified and assessed during the preoperational monitoring studies. The locations of all sampling stations, with the exception of the control station (Station P), are shown in Figure 6.1-1. This control station will be on the Broad River in Chester County, above the NL is Shoals Dam 29 river miles upstream of Parr Dam. e Sampling stations in the Broad River and Parr Reservoir will be the same as those surveyed during all or portions of the baseline monitoring program. Teven sampling stations will be located in the main por'. ion of l5 Monticello Reservoir. These stations will be positioned at various distances from the intake and discharge structures of the Virgil C. 1 Summer Nuclear Stacion. Placement of the stations in this manner will help assure that spatial variations of levels of plant impacts can be detected. In addition to these seven sites, Station H will be located in l5 the northern portion of Monticello Reservoir. This station will provide data on biological communities in the portion of the reservoir that will be unaffected by water level fluctuations caused by operation of the FPSF and heat input from the Virgil C. Summer Nuclear Station. Sampling stations and scopt will be modified should results indicate that such a change is justified.
O 6.1-4 AMENDMENT 5 JUNE 1980
/
- species will be made in the field when possible; representative speci-mens of unknown macrophytes will be collected, marked as to their point of observation, and sent to the laboratory for identification to the lowest practicable taxon. Stand densities will be estimated.
Results of field observations will be compiled as a species list for the study area. A map of the area will also be-prepared to show those locations which were observed to support significant macrophyte popula-4 tions, if any exist.
I 6.1.1.2.1.2 Phytoplankton f
Phytoplantkon will be sampled according to the schedule in Table 6.1-2; 5 the purpose is to determine the species composition, diversity, and biomass. Duplicate composite samples of the water column from the bottom of the photic zone to the water surface will be collected at each station using a pump.
O In the laboratory, each phytoplankton sample will be concentrated by settling in one liter columns for 120 hours0.00139 days <br />0.0333 hours <br />1.984127e-4 weeks <br />4.566e-5 months <br />. Forty milliliters of i conunercial formalin will be added to the column contents to promote sed iinentation. After settling, the supernatant will be siphoned from
, the top of the column, and the phytoplankton concentrate placed into a Sedgwick-Rafter (S-R) cell and analyzed by identifying and counting phytoplankton in one to three standardized whipple disc strips at 300X.
Proportional count diatom slides will be prepared with Hyrax mounting J
-O medium to determine S-R cell diatom densities and identification.
Glycerine jelly slide mounts may be used for some phytoplankton iden-tifications.
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6.1-5 AMENDMENT 5 JUNE 1980
- _ , . . _ . . ~ . . .
Phytoplankton densities represent the number of cells per liter of water l Sg the equation is expressed as :
Phytoplankton/ liter = C WD-V x SR-V CV TV OS-V TV-FV where:
C = uve age number of organisms counted from 3 strips. O SR-V = Sedgwick-Rafter cell volume (mm ).
WD-V = Standardized Whipple disc strip-volume (mm ).
CV = Concentrate volume (ml) .
OS-V = Original sample volume (liters).
TV = Total column height (ml).
FV = Formalin volume (ml).
Plankton biomass will be determined in the laboratory after enumeration of the organisms. The water samples will be filtered through a Milli-pore HA filter, or equivalent, of known weight, using standard apparatus.
1 The samples will then be dried to constant weight, ashed, and reweighed so that the ash free dry weight can be calculated.
O Data collected on phytoplankton populations in both Parr Reservoir and the Broad River will be compared to baseline and construction monitoring data. Analysis of data from Monticello Reservoir will focus on the trophic conditions and succession of species assemblages in the newly created impoundment.
6.1.1 2.1.3 Zooplankton Zooplankton will be sampled quarterly to determine the species compo-O sition, diversity, and biomass. Duplicate zooplankton samples will be obtained by vertically towing a plankton net from the bottom to the water surface. Laboratory procedures for identification and enumeration will be similar to those described for phytoplankton.
O 6.1-6 AMENDMENT 5 JUNE 1980
m
' Data collected-on zooplankton populations in Parr_ Reservoir and the
- -
' Broad River will be compared to baseline and construction monitoring data. Analysis of data from Monticello Reservoir will focus on the i trophic conditions and evolution of species in the newly created impoundment.
6.1.1.2.1.4 Ichthy'oplankton
-Fish eggs and larvae will be sampled according to the schedule in Table l5
- j. 6.1-2. The sampling transects specified for Monticello Reservoir are located near the intake and discharge structures for the FPSF and the f Virgil C. Summer Nuclear. Station. In addition, there will be general i sampling locations along the shoreline in.the upper.end of Monticello
[ Reservoir. Sampling will be accomplished by pumping a known volume of
' water through'a net or by towing a net through the water. The specific l method employed will be determined according to observed conditions. 1 However, in each case, a known vol.ume of water will be filtered.
. O In the laboratory, fish larvae and eggs will be separated from plankton and debris. When the samples contain less than 100 larvae, each specimen will be measured and weighed. If larger numbers of organisms are obtained, subsampling will be accomplished. Data analysis will be conducted to document taxonomic composition and relative abundance.
Densities of eggs and larvae will be compared by statistical tests to j determine significant spatial and temporal variations in distribution.
.The data will be used to evaluate spawning time of taxa encountered and the utilization of the various portions of the reservo.ir as spawning 1
t habitat.
6.1.1.2.1.5 Benthic Macroinvertebrates O
!. The benthic macroinvertebrates will be sampled on a quarterly' basis to
' determine species composition,. diversity, abundance, and biomass.
4 6.1-7 AMENDMENT 5 s JUNE 1980
<.- . . _ _ . . 4 -_ ._ _ .. ... _ _ . _ ._ _ .,_._..___._u
Triplicate benthos samples will be collected with an Ekman dredge from sampling stations. All samples will be sieved with a U.S. Standard No.
30 wire mesh sieve and preserved.
Macroinvertebrates will be sorted in the laboratory, and then placed under a dissecting microscope for identification and enumeration. The mean number of organisms collected in the samples will be computed and reported as numbers per square meter. Species diversity and equata-bility will be calculated from the data.
The data from Parr Reservoir and the Broad River will be compared to baseline and construction monitoring information to determine the impact of fluctuating water levels. Data collected from surveys at stations in Monticello Reservoir will be used to document the process of colonization by benthic organisms in the newly created impoundment.
I 6.1.1.2.1.6 Fish O
The fish population of Parr and Monticello Reservoirs and the Broad 5 River will be sampled according to the schedule in Table 6.1-2. The objectives will be to determine the following: species composition, distribution, relative abundance, age and growth, length-weight relationships, condition factors, sex ratios and gonad conditions, standing crop, and parasitism. Items 2-6 described below will be j accomplished for collected specimens of the species which are listed in Table 6.1-3.
O
- 1. Fish Collection Fish will be collected with electrofishing equipment, gill nets, fyke nets, and hoop nets. Rotenoning will be conducted annually. Shoreline areas around transects will be sampled by electrofishing for one hour at each location. Stunned fish will be ret rieved and held for process-ing. Stations will also be sampled by gill, fyke, and hoop nets, as appropriate for conditions at that site. Nets will be set 6.1-8 AMENDMENT 5 JUNE 1980
perpendicular to the shoreline for approximately 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. At the end of this period,'the nets will be retrieved, ,'nd captured fish will be held for processing. Fish collected by these techniques will be iden-tified, counted, and the locality and date of ccliection recorded.
Species composition, distribution, and relative abundance will be determined from these data.
O Fish samples will be collected by roteoning at Stations C, I, K, and P V to establish standing crop estimates and to refine abundance informa- 5 tion derived from other sampling methods. An area will be completely blocked off with square mesh nets. Fish will be collected outside the nets with electrofishing gear. The total length will be measured, and individual fish will be marked for later recognition by clipping the lower lobe of the caudal fin. The marked fish will be released within the enclosed area and e lowed to remain for a period of 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. The enclosed area will be checked the following morning for dead fish.
I 1
s
) A rotenone solution will be applied to the blocked ares and thoroughly mixed. It will be assumed that all fish (marked and unmarked) are equally susceptibic to the toxicant. Distressed fish will be col-lected, sorted to species, counted, weighed, measured, sexed, and a scale sample taken. All marked specimens will be counted.
- 2. Age and Growth Scales will be removed from the left side between the lateral line and dorsal fin of most important fish species. In the laborato q, impres-sions of scales from each fish in the sample will be made on cellulose acetate slides. The impressions will be projected on a plane surface
,O so that the annuti can be counted and distances between them measured.
O Calculations of fish length at successive annulus formation will be in
}
j accordance with the method of Lee (1) . Other age and growth determina-tion techniques will be implemented for those species for which scale studies _are not possible, a l 6.1-9 )
AMENDMENT 5 JUNE 1980
F O
The data obtained as a result of fish scale analysis will provide in-sight into the growth rate of each fish sampled for successive periods during its lifetime. Such information will allow a general assessment of changes in habitat quality from the standpoint of fish growth rates.
- 3. Length-Weight Relationship Fish collected will be measured and weighed.
- 4. Condition Factor Condition factors (K) will be calculated for individual fish, and the mean condition factor for each species in each centimeter group will be determined. The formula K
)
= W/L will be used for all condition factor determinations (where the weight, W, is in grams; and the total 1
length, L, is in centimeters).
0
- 5. Sex Ratios and Gonad Condition Specimens will be sexed in the field. Gonads will be classified accord-ing to the method presented in Table 6.1-4.
- 6. Standing Crop Estimate A system of mark and recapture using the Petersen estimate formula (2) will be employed to determine the standing crop.
- 7. Parasites A visua. examination for ectoparasites from all captured fish will be conducted.
O AMENDMENT 1 APRIL 1978 6.1-10
- s 1
TABLE 6.1-1 i
I WATER QUALITY MONITORING PROGRAM FOR THE i PRE-OPERATIONAL PHASE OF THE VIRGIL C. SUMMER NUCLEAR STATION LO Analysis Technique (
Station Number ( } Parameter J
I CONTINUOUS MONITORING 4
i . 12 Water Temperature Continuous Recording Meters Dissolved Oxygen Conductivity PH l
I 17 Water Temperature Continuous Recording Meter 2
MONTHLY MONITORING i 1, 5A, 11, 12 Water Temperature EPA i- Dissolved Oxygen EPA (electrode)
Conductivity ASTM D1125-64, A
{
pH ASTM D1293-65 a
Transparency Secchi Disc
! Turbidity ASTM D1889-71 BOD SM 507 l5 '
I' TSS ASTM D1888-67, A TDS ASTM D1887-67, A l5 l Total Alkalinity ASTM D1067-70, C Total Hardness ASTM D1126-67, B i
QUARTERLY MONITORING 1
7 2, 14, 16, 18 Same parameters as monthly, above, at Stations 1, 5A, 11, 12'
< plus 1
~~
i l, 2, 5A, 11 Ammonia ASTM D1426-74, B j '12, 14;'16, 18 Nitrate SM 419D
! Mercury EPA Total Phosphorus ASTM D515-72, B l5 1
6.1-37 AMENDMENT 5- 'l
" 1 JUNE 1980 i i
o o o o o o o .
i TABLE 6.1-2 1
SUMMARY
OF SCOPE OF WORK FOR THE PREOPERATIONAL BIOLOGICAL SAMPLING PROGRAM Sampling. References W Sampling Station Frequency Species Identification 4 Program Component Vascular Hydrechytes Shorelines of Parr and Quarterly Reference 10 Monticello Reservoirs ,
Phytoplankton I, K, L, M, N, and O Monthly References 11-19 l5 B, C, D, H, I, and P Quarterly ;
-Zooplankton B, C, D, and H through P Quarterly References 20-22 i
Ichthyoplankton B, C, I, K and N Weekly y References 23, 24 H. J, L, M, O and P Biweekly 2 1l5 m B, C, and H through P Biweekig r Monthly i ,
u
- Benthic Macroinvertebrates B, C. D, and H through P. Quarterly References 25-34 t Fish B, C, D, and H through P Quarterly 5 Referencer, 35-39 l5 i
4 1
l Late February through June.
2 2
. July through September. l I 3 '
l October through January. 5 4
i Electrofishing will be conducted at these stations; locations for rotenoning are discussed in .
! .Section 6.1.1.2.1.6.
i 5
j In addition to the spring (April) quarterly sampling, fish are sampled at Stations I and M three weeks prior to and three weeks after the scheduled sampling.
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.O O O O O O Page 4 of 9 O
TABLE.6.1-15 (Continued)
Sample Locations Exposure Pathway Criteria for Selection of Sampling and Loca- Type'and Frequency of and/or Sample Sample Number and Location Collection Frequency tion (l) Mi/Dir Analysis ,
WATERBORNE, B 1 Control sample to be . 22(3) 12-15 M 1 (continued) ~ taken at a location on the ,
receivinE river, suffi-ciently far upstream such that-no effects of pumped storage operation are anticipated.
C ,1 Indicator sample from 17 24.7 S '
5~
location'immediately upstream of the nearest
- downstream municipal '
&g water. supply w
D 1 Indicator sample to be Crab sampling 23(3) <1 E As in V above.
monthly (5) 1 4 taken in the upper reser-voir,of the r unped storage facility.
E 1 Indicator sample to be 24(3) 4.7 N y taken in the upper reser-voir's non-fluctuating B recreational area.
F 1 Control sample to be 18(3) 16.5 S 1 l
taken at a location on a separated unaffected watershed reservoir. t 26 Onsite Gamma isotopic and V. Ground Water A 2 Indicator samples to 1 4 g Quarterly sampling (7) grab 27 Onsite tritium analyses !
m be.taken within the ex- quarterly.(7) l clusion boundary and in g
gh. the direction of , poten--
' O tiall,y affected ground u water supplies.
<7
Pcs 5 ef 9 U TABLE 6.1-1 (Continu d) '
Sample Locations Exposure Pathway Criteria for Selection of Sampling and Loca- Type and Frequency of r'=d/or_ Sample Sample Number and Location Collection Frequency tion (I) Hi/Dir Analysis _
WATERBORNE, B 1 Control sample from an (continued) unaffected location. 16 28.0 W 1
VI. Drinking A 1 Indicator sample from Monthly grab nearby public ground sampling (5) 28 1.3 ESE Monthly (5) gansna isotopic Water water. supply source. andgrossBetg7 nalyses I and quarterly tritiumi 4 analyses B 1 Indicator (finished Monthly grab 17 24.7 S water) sample from the sampling (5) 5
+[ nearest downstream 4
- water supply.
INGESTION Semi-monthly when 14(4) 5.2 W GammaisotopicandI-g
- VII. Hilk(5) A 1 Indicator sample to analysis semi-monthly be taken at the location animals grp on 1 of one of the dairies Pasture,187 monthly whenanimalsare(o$,t 4 other times.(5) pasture; monthly 5 most like}y)to(5) affected.(2 be other times B 1 Control sample to be 16 28.0 W I
taken at the location of a dairy 10-20 miles dis- l1 tant and not in the most prevalent wind direction.(2)
Monthly when available(5) 6 1.1 ESE Camma Isotopic C 1 Indicator gra is (for-1 4 age) sample to ba taken at one of the locations El beyond but as close to the E exclusion boundary as e- practicable where the E highest offaite sectoral ground level concentra-
" tions are anticipated.(2)
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/N 7.1.2.7 Class 7.0: Spent Fuel Handling Accident 7.1.2.7.1 Fuel Assembly Drop in Fuel Storage Pool
('\.
' '/
In this accident, it is postulated that a fuel assembly drop occurs as a result of the mishandling of a spent fuel assembly. The accident is assumed to result in damage to one row of fuel rods in the assembly. () V The activity released from the damaged fuel rods bubbles through the spent fuel pool vater covering the assembly, and most of the radioactive iodine is entrained. The remaining radioactivity is released to the fuel handling building atmosphere above the pool where it is exhausted through the fuel handling building charcoal exhaust system. The activity release for this accident is based on the following assump-tions:
- 1. The gap activity (1 percent of the total noble gas and halogen
('S) activity in the rod) in one row of fuel rods from an average assem-s bly which had operated at full power for 650 days is released to the spent fuel pool at the time of the accident.
- 2. The accident occurs 1 week following reactor shutdown.
- 3. The spent fuel pool water retains a large fraction of the halogen gap activity because of solubility and hydrolysis. Noble gases are not retained by the water. An iodine decontamination factor of 500 is used in the analysis.
- 4. The fission products not retained in the water are released to the (m,) air above the pool and exhausted to the plant vent through charcoal filters with an iodine removal efficiency of 99 percent.
The calculated activity release for this accident is given in Table
,m
( ,) 7.1-7. The calculated doses are tabulated in Table 7.1-3.
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O The possibility of a fuel-handling incident in the fuel handling build-ing is equally as remote as that within the reactor building as discussed in Section 7.1.2.6.1. Design considerations and administrative controls are esse'ntially the same as those discussed earlier. Only one assembly - can be handled at a time, and the design is such that the assembly is continuously immersed. Spent fuel at rest in the storage racks is positioned by positive re-straints in an always suberitical array (no credit taken for boric acid in the water), and it is impossible to insert a spent fuel assably in other than prascribed locations. 7.1.2.7.2 lleavy Object Drop Onto Fuel Rack This accident is defined as the dropping of a heavy object onto the spent fuel storage racks such that all of the fuel rods in an average assembly are damaged. Again, the spent fuel pool water would retain a large frac-tion of the halogen activity with any escaping activity being exhausted to the plant vent through charcoal filters. The activity release for this accident is based on the same assumptions as listed in Section 7.1.2.7.1 for the spent fuel assembly drop acci-dent, except that it is assumed that the gap activity from all the fuel rods in an average assembly is released at the time of the accident, 10 days following reactor shutdown. Crane design will preclude this event. 5 O O 7.1-14 AMENDMENT 5 JUNE 1980
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LASSIFICATION OF POSTULATED ACCIDENTS AND OCCURRENCES No. of Class Description Examples 1 Trivial incidents Small spills Small leaks inside containment 2 Miscellaneous small releases outside Spills containment Leaks and pipe breaks 3 Radwaste system failures Equipment failure Serious malfunction or human error 4 Events that release radioactivity into the Fuel failures during normal operation y primary system (BWR) Transients outside expected range of r.
variables 1 5 Events that release radioactivity into the Class 4 and steam generator leak primary and secondary system (PWR) 6 Refueling accidents inside containment ' Drop fuel element Drop heavy object onto fuel Mechanical malfunction or loss of cooling in transfer tube 7 Accidents to spent fuel outside containment Drop fuel element Drop heavy object onto fuel
- l5 Drop shielding cask 8 Accident initiation events considered in Reactivity transient hB design-basis evaluation in the Safety Rupture of primary piping y@ Analysis Report Flow decrease g, 5 Steam line break
$f o 9 Severe hypothetical failures See Section 7.1.2.9 rn
- Not Applicable, see Secti on 7.1.2.7.2 l!
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TABLE 7.1-3 (Continued) Page 2 of 3 Whole Body Dose Thyroid Exclusion Population Dose Inhalation Dose Accident Distance 50 Miles Exclusion Distance Class Description (Rem) (Man-Rem) (Rem) _ 6.0 Refueling Accidents
-3 6.1 Fuel Bundle Drop 3.3 x 10- 1.5 x 10 1.6 x 10-
-6 -6 6.2 IIeavy Object Drop onto Fuel Storage 7.5 x 10 3.5 x 10- 3.0 x 10 7.0 Spent Fuel llandling Accident
-5 -1 -5 7.1 Fuel Assembly Drop in Fuel Storage Pool 3.0 x 10 1.4 x 10 1.5 x 10
," 7.2 lleavy Object Drop onto Fuel Rack
- l5
-3 7.3 Fuel Cask Drop Outside Buildings 3.2 x 10- 1.5 x 10 6.1 x 10-8.0 Accident initiation Events Considered in SAR 8.1 Loss of Coolant Accidents
-5 -2 -0 Small Pipe Break 1.1 x 10 7.8 x 10 1.9 x 10 large Pipe Break 2.2 x 10- 1.0 x 10 1.3 Break in Instrumentation Line from Primary Not Applicable u 8.2 Control Rod Accidents E -3 1 e Rnd Ejection Accident (PWR) 2.3 x 10 1.1 x 10 1.4 x 10-
$d Rod Drop Accident (BWR) Not Applicable w
- Not Applicable, see Section 7.1.2.7.2 5
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