ML20083N981
| ML20083N981 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 04/30/1984 |
| From: | GEORGIA POWER CO. |
| To: | |
| Shared Package | |
| ML20083N978 | List: |
| References | |
| ENVR-840430, NUDOCS 8404190348 | |
| Download: ML20083N981 (43) | |
Text
- - _
VOGTLE OLSER O INSERTION INSTRUCTIONS AMENDMENT 2, APRIL 15, 1984 Page/Section Instruction
- t. 2.1-3 Replace
- t. 2.1-17 Replace 3.0 Table of Contents, p. 3-v Replace through p. 3-vi
() p. 3.6-3 through 3.6-4
- p. 3.6-7 through 3.6-9 Replace Replace
- p. 3.9-1 Replace
- p. 3.9-2 Add
- t. 3.9-1 through t. 3.9-3 Add
- f. 3.9-1 through f. 3.9-2 Add
- p. 4.2-1 Replace
- t. 5.2-1 (Sheets 1 of 2, 2 of 2) Replace
- p. 5.5-1 through p. 5.5-2 Replace
() p.
p.
5.6-1 through p. 5.6-2 5.7-1 through p. 5.7-2 Replace Replace
- t. 6 .1- l' (Sheet 1 of 4) Replace
- t. 12.1-4 Replace
- p. Q-i through Q-ii Replace t.-E100.1-1 (Sheets 4 of 6, 5 of 6) Replace
- p. QE290.4-1 through QE290.4-2 Replace
- p. QE290.4-3 Add
- p. QE290.6 Replace
- p. OE451.9-1 Replace
! [%)) p. QE451.9-2 through p. Q' 21.9-4 Add l p. QE451.10-1 Replace
- t. E451.12-1 (Sheets 1 of 2, 2 of 2) Rep; ace
. I)
Acknowledgement Receipt-to this package
. Sign and return the
~the address' indicated Revision Insertion Instructions Use and discard 8404190348 B40415 T 'i PDR ADOCK 05000424 V _C_.__. PDR_ _
VEGP-OLSER-2 TABLE 2.1-3
(} 1980 POPULATION BY SECTORS 1- To 50-Mile 50- to 500-Mile l2 Sector Radius Totals Radius Totals
(} N NNE 51,171 14,423 5,381,854 7,318,870 NE 10,773 5,323,684 ENE 12,638 1,201,216 E 4,087 375,454 ESE 10,310 120,590 SE 4,225 66,298
() SSE 8,078 1,231,420 5,784,624 I I S 6,203 SSW 7,995 392,318 SW 5,140 910,827 WSW 13,316 3,001,790 l
W 6,975 3,394,724 WNW 47,379 4,949,989 NW 103,027 3,635,743 NNW 76,174 7,231,986 381,914 50,322,387 O
i O
Amend. 1 2/84
' Amend. 2 4/84
. _ . . - _ _ _ . - . - _- _ ._ _-_---_ __. _ _._ _._. _ =
VEGP-OLSER-2 TABLE 2.1-17 gi O POPULATION BY SEGMENT FOR SOUTH-SOUTHEAST SECTOR (50 TO 500 MILES)
Year Mile
(} (Ring 1 50 1987 5,619 2007 6,357
__2028 7,617 60 4,615 6,116 8,100 70 4,845 6,338 8,141 85 108,636 136,822 164,380 100 114,807 137,670 173,377 150 15,338 18,915 21.864 200 NA NA NA 350 26,960 33,785 379,612 500 1,154,710 1,490,623 1,888,704 2
Total 1,435,530 1,836,526 2,651,795 O
O O
O Amend. 1 2/84 Amend. 2 4/84
I' r
t 1
i i
() VEGP-OLSER-3 4
LIST OF TABLES i.
t
() 3.2-1 Plant Power Level Versus Gross Heat Rate ,
3.4-1 Summary of Circulating Water System Design Parameter
}- Changes 1- 3.4-2 GPC Water Chemistry Criteria for Cooling Tower Operation 3.6-1 Summary of Biocide and Chemical Use at VEGP .-
3.6-2 Liquid Effluent Water Quality Summary i
3.6-3 VEGP Preoperational Cleaning Wastes (Per Unit) 3.7-1 Sanitary Waste Design Parameters '
I Physical Characteristics of VEGP Transmission Lines 3.9-1.
t
+ 3.9-2 Physical Characteristics of VEGP Transmission Lines ;
i 2
, .3.9-3 Land Use Categories occupied by Transmission Corridors f 7
l Liquid Waste Processing System Capacities 3A-1 '
4 i .
i t
i .-
10:
5 l .
3-v ,
. Amend.'2~f4/84,
. . _ . - - - - ,. . - . - _ . . ._ . _ _ _.;-.s. . - . . . - _ . _ . . _ , . _,..,-.-..-..,._.___...--...-,.-,s
i VEGP-OLSER-3 h LIST OF FIGURES 3.1-1 Site Plot Plan h 3.3-1 Plant Water Use 3.4-1 General Heat Dissipation Flow Diagram 3.4-2 Intake Structure and Canal h 3.4-3 Natural Draft Cooling Tower Performance Curve l
3.4-4 Outfall Structure Design .
l 3.9-1 Transmission Line Routing'
! 2 3.9-2 Transmission Line Routing!
O l
O O
O 1
3-vi 4/84)
Amend. 2
/ >
(_ l VEGP-OLSER-3 As discussed in subsections 3.3.1 and 3.4.1, makeup water is supplied to the main cooling towers from the Savannah River.
During normal operation the makeup flow is varied to replenish
(~]
\_/ circulating water system losses due to evaporation, drift, and blowdown. Blowdown flow is varied to maintain the circulating water cycles of concentration between two and six.
The circulating water chemical injection system provides acid
(, ,} and chlorine to maintain proper pH and control biological
\' growth. Sulfuric acid, 66 Baume', is added to the circulating water system through metering pumps at a rate sufficient to reduce alkalinity and maintain the pH that will result in a Ryznar Index of between 7.0 to 7.5 to balance scaling and corrosion effects. Chlorine is added to the system to control biological growth in the tower-condenser system. Chlorine is injected as a gas dissolved in water.
The river water makeup system will be continuously chlorinated 2 as necessary during the Corbicula spawning season up to a level of 10 ppm providing a free available chlorine concentration of 1 ppm.
Chlorine is diffused into the suction of the river makeup water (F ')
pumps at the river intake structure. Grab samples are taken at the discharge of the river makeup water pumps to monitor i chlorine concentrations.
Chlorine is injected directly at the circulating water system intake structure. Grab samples will be taken from the natural draft cooling tower blowdown line to monitor chlorine concentrations.
The amount of chlorine added depends upon the rate of biological growth in the circulating water. In general, intermittent chlorination to produce approximately 0.2 mg/l free available
N chlorine in the circulating water is expected. During the l1
,/ summer, because of increased biological growth on warm days, chlorine is injected from usually 1 to 3 times / day. During the winter when chlorine demand is low, a single weekly injection period is required. During Corbicula spawning season (section 2.1), chlorination will be continuous up to a level of 10 mg/l providing a 1.0 mg/l free available chlorine. The maximum free available chlorine in the blowdown will be limited to an average of 0.2 mg/l with a maximum spike of 0.5 mg/1. Chlorination rates will vary depending on system conditions. Maximum system design chlorination rate is 10,000 lb/ day. At present, the EPA 1
does not have an effluent limitation on total residual chlorine for cooling tower blowdown. Operating experience with other cooling towers within the region have shown a total residual chlorine concentration in the blowdown usually less than 0.1 mg/1. The. total residual chlorine concentrations of the cooling tower blowdown at the VEGP should be in the same range as that 3.6-3 Amend. 1 2/84 Amend. 2 4/84
VEGP-OLSER-3 l
found at other cooling towers within the region. The system is l1 designed to ensure that the station effluent meets EPA chlorine effluent limitations (section 5.1.1).
Discharge from the two natural draft cooling towers is combined h in a sump, with discharge from the nuclear service cooling water towers and other station liquid wastes discharged from the waste water retention basin. The sump liquid is combined with other station effluents as discussed in subsection 3.6.3 and discharged to the Savannah River.
Suspended solids deposition in the circulating water system is controlled through the use of dispersants, as required. The dispersant is selected and used according to specific needs.
Mud and other solids are deposited in the bottom of the cooling tower basin. These wastes are discussed in paragraph 3.6.4.1.
3.6.1.2 Nuclear Service Cooling Water (NSCW) System The VEGP utilizes one operating and one apare NSCW tower per unit as described in the Final Safety Analysis Report (FSAR) section 9.2.1. During normal operation, the blowdown flow is varied to maintain the cycles of concentration to between two and eight.
Acid and chlorine injection is provided to control pH and to inhibit biological growth. Sulfuric acid (66 Baume') is added as required to maintain a pH that will result in a Ryznar index of 7.0 to 7.5 to balance scaling and corrosion effects. Tower chlorination varies usually from three times per day on warm l1 summer days to one time per week during the winter. A dispersant is applied as needed to control tne suspended solids contents.
Chlorine is injected in the NSCW pump discharge. Grab samples will be taken from the blowdown line to monitor chlorine concentrations. The maximum free available chlorine concentration will be limited to an average of lll 0.2 ppm with a maximum spike of 0.5 ppm in the blowdown.
Chlorination rates will vary depending on system conditions.
Maximum system design chlorination rate is 2000 lb/ day. There is only a remote possibility of the NSCW system becoming i contaminated with Corbicula. That remote possibility occurs if river water makeup is provided for the NSCW system. If that occurs prolonged continuous chlorination will be employed to ensure that there is no infestation of the NSCW system b)
Corbicula. Total residual chlorine concentrations in the blowdown will be similar to that discussed for the main circulating water system. g 3.6-4 Amend. 1 2/84
\_/' VEGP-OLSER-3 concentration. This will be followed with a rinse of demineralized water.
(_) 2. Rust and mill scale will be removed from the system by circulating a heated organic acid solution for several hours.
- 3. Following the cleaning, the system will be flushed
(, ) with rinses consisting of demineralized water
\m) and/or passivating chemicals.
Estimated total water volume used in a complete cleaning would be approximately 9,000,000 gal per unit. Wastes from this flushing process will be directed to the waste water retention basin, construction sediment retention basin, or the startup ponds for suspended solids removal before discharge to the Savannah River. The startup ponds consist of one unlined pond with a capacity of 5 x 10' gal for short term storage and one lined (0.100-in. high-density polyethylene) pond with a capacity of 3 x 10' gal for long term storage. The waste water retention basin is described in section 3.6.3. The majority of
- the water flushings from the fire protection system, potable
( l water system, and utility water system will be directed to site 2
[/ storm drains. From the storm drains, the flushings will discharge to one of the two construction sediment retention basins for suspended solids removal. A small quantity of flush water will be collected in building drains which discharge to the waste water retention basin. Other station systems that are water flushed will discharge to either the waste water retention basin or the unlined startup pond for suspended solids removal.
All chemical cleaning flushings will be dischargodto the lined startup pond for treatment prior to discharge. The waste water from the startup ponds and waste water retention basin i3 discharged to the blowdown sump. Assuming that water flushing is sufficient, the startup waste is subject to EPA effluent limitations and standards for low volume wastes.
If chemical cleaning is required, treatment in the startup ponds will conform to EPA effluent limitations for metal cleaning wastes as discussed in subsection 5.1.1. The estimated quantities of chemicals used for chemical cleaning is shown in table 3.6-3.
Periodic nonradioactive operational equipment cleaning wastes will also be discharged to the waste water retention basin l2 and/or startup ponds. The amount of cleaning waste involved will not be greater than that used during preoperational cleaning.
3.6-7 Amend. 2 4/84
VEGP-OLSER-3 3.6.2.4 Water Treatment Plant 0
The water treatment plant is essentially the same as discussed in CPSER subsection 3.7.3. Howevur, there is only one water treatment plant due to the decrease in the plant size from four to units.
3.6.2.5 L_i_ quid Radioactive Wastes Systems for processing liquid radioactive wastes are described in subsection 3.5.2. Final discharge of effluents from the liquid radioactive waste processing system will meet 10 CFR 20 requirements for release into the Savannah River and EPA effluent limi tati ons for low volume waste as discussed in subsection 5.1.1.
3.6.2.6 Turbine Building and Miscellaneous Building and Area Drains The turbine building miscellaneous building and area drains are discussed in FSAR subsection 9.3.3. Oily wastes are treated by an oily waste separator and meet the EPA effluent limitations for low volume waste oil discharge as discussed in subsection 5.1.1.
O 3.6.3 LIQUID DISCHARGE
SUMMARY
As shown in figure 3.3-1, the low volume waste streams are collected in the waste water retention basin. The basin is a l1 corrosion-proof, epoxy-lined basin that provides aeration and l2 retention time for the wastes. The basin consists of two compartments, one side being used to hancle normal waste streams and the other compartment providing holdup capacity for waste requiring treatment. Each compartment is sized for the waste generated for both units. Any treatment of the waste is done manually as needed based on the results of periodic samples.
The solids removed from the waste water retention basin is discussed in subsection 3.6.4.
Liquid wastes from the waste water retention basins, the blowdowns from the nuclear service cooling water towers and natural draft towers, and any dilution flow necessary to-meet 10 CFR 20 limits are combined in the blowdown sump. The liquid radwaste is injected into the discharge pipe downstream of the blowdown sump.
The characteristics of the waste streams and of the combined effluent discharge to the Savannah River are shown in table O
Amend. 1 2/84 3.6-8 Amend. 2 4/84
VEGP-OLSER- 3 3.6-2. The plant waste discharge conforms to the requirements' discussed in subsection 5.l*.1.
3.6.4 CHEMICAL AND BIOCIDE SOLID WASTES The VEGP chemical and biocide solid wastes consist of settled solids from the waste water retention basins and the cooling tower basins and salt drift emissions from the cooling towers.
3^.6.4.-3 "Se_ttled Solids Removal Each natural draft cooling tower has a solid deposition rate of approximately 2.5 lb/ min into the basin. The. basins have a desilting channel'that leads to the 24-in. blowdown line which goes to the blowdown sump for discharge into the river. The towers are also equipped with access ramps so that silt and sludge buildup may be removed. T: is expected to occur during normal plant outages. Cooling towe. uludge will be disposed of in~an approved upland disposal site.
j3 . Solids' removed from the waste water retention basin will also be
( ). disposed of in an upland disposal site. Previous operating experience'has revealed that.these solids and' cooling tower 1 ll
. settled solids are not hazardous (see section 5.6.3) and can be L disposed'of in an approved upland disposal site.
3.6.4.2 . Cooling Tower Salt Drift-Emissions Salt drift emissions from the natural draft cooling towers for a'-
four-unit plant areidiscussed in CPSER subsection 5.3.2. The l NRC staff concluded'(FES paragraph 5.5.1.1) that the effects of
' deposition of cooling tower salt drift would be negligible. The decrease in plant-size from four to two units further reduces
/' these effects. Additional information on salt drift emissions 1
(,)y is provided in' response toquestionsLE290.3 and E451.17.
(.
p g
Q) 13.6-9 Amend. 11 2/84
VEGP-OLSER-3 3.9 TRANSMISSION FACILITIES The environmental effects of the operation and maintenance of the transmission facilities are addressed in section 5.5.
This section addresses changes in the transmission system since the Construction Permit Stage Environmental Report (CPSER) and the Construction Permit Stage Final Environmental
~~
{~ . Statement {FES).
1 Figure 3.9-1 illustrates the transmission system proposed in the CPSER and evaluated in the FES. This system included six corridors containing eight 500-kV lines and three 230-kV lines. This system would have impacted approximately 12,660 acres, w Figure 3.9-2 indicates the currently proposed transmission
= system. This system is based on current planning studies evaluating substation and interconnection needs for the Georgia intergrated transmission network. Changes from the CPSER are due to a reduction from a four-unit plant to a two-unit plant as well as changes to construction schedules
[^\
\-
of substations and lines. The system described in figure 3.9-2 supersedes past system descriptions in the CPSER and intervening changes such as those described in D. E. 2 .
I Dutton's letter'to D. G. Eisenhut of February 1, 1982.
Two 23OrkV lines will go from VEGF to Goshen. These lines y' y will snare a common right-of-way approximately 19 miles in length with the existing 230-kV line which goes from Plant s'
Wilson to Goshen.
A short single 230-kV line will go from VEGP to South Carolina Electric and Gas (SCEG). The exact right-of-way for this line has not been established.
l r8
(' ) A 500-kV line'will go from VEGP to Plant Scherer. This line z ' ~' - s will be approximately 152 miles long. This line is routed
\v - ' via the existing Wadley Substation but will not be initially
_ :v. interepnnected at that point. This line is also routed via
~
.the Wal'lacelDam area, ~the site of a future substation.
v
- m y . '
, 3 > '
~ (>~j' 'NN This "Ai500-hV line will go from VEGP to the Thalmann Substation.
line d a routed by a proposed substation at Effingham e
iMcIntohh)'lyut will not interconnected at that point. The u -VEGPm --Thalmann,line will be'approximately 159 miles in
_' length;.
I u
+-m ~ . ~
l '
i- It'is projected'6 hat the en' tire network illustrated on figure i'3.9-2 will affect apprpx_imately 6,200 acres. 1his is a
- s. s as '
N, .
A s . C'
' yi
- 3 C ' ~
N. \3.9-1 Amend. 2 4/84 x3' 3* My, , +
?\ p 'v,
._ %. L J',. ,
+$.
VEGP-OLSER-3 g
reduction in the environmental impact from that originally evaluated at the Construction Permit Stage of approximately 12,600 acres.
Table 3.9-1 provides details on the basic electrical design parameters including design voltage, line capacity, conductor type and configuration, spacing between phases, and minimum conductor clearances to ground. Table 3.9-2 indicates the lengths, widths, and area of rights-of-way. Table 3.9-3 indicates the land use categories impacted by the l transmission lines. The categories correspond to those given in the CPSER and (FES) .
The basic structural design parameters for the 500-kV and 230-kV structures are the same as those described in section
! 5.4.1 of the CPSER. In addition, the general methods of 2 l construction are also the same as those provided in the CPSER.
Insofar as feasible and practical, route selection has been guided by the Federal Power Commission publication, " Electric Power Transmission and the Environment" and the Department of Interior / Department of Agriculture publication entitled
" Environmental Criteria for Electric Transmission Systems."
Due consideration has been given to the avoidance of possible conflicts with any known natural or manmade areas where adverse effects of the environment could result. GPC coordinates with the appropriate agencies within the State of Georgia for determination of whether any structures or site of historical or archaeological significance will be q disturbed and any required mitigating returns. These actions are consistent with the requirements of the VEGP Construction Perrait condition 3E(1) and the commitments summarized in section 4.5 of the (FES) .
O O
3.9 Amend. 2 4/84
~. . ;,
't l' , . ,
t i TABLE 3.9-1
- i. .
PHYSICAL CHARACTERISTICS OF VFJP TRANSMISSION LINES I
VECP-Coshen VEGP-Coshen (White) (Black) VEGP-Thaimann VEGP-Plant. Scherer 230-kV Line , 230-kV Line 500-kV Line 500-hV Line
- 1. Structure type Guyed li-frame Guyed H-f rame Fou r-l egged rigid Four-legged rigid base base ,
~
- 2. Structure materia l Calvan! red steel Galvanized ' steel Galvanized steel Galvanized steel D 3. Nominal height 80 ft - 100 i'. 80 ft - 10O ft 80 ft - 100 ft 80 ft - 100 ft
- 4. Li r.e length (mitirs) \ s18.8 18.8 ( 159 152 2
- _, . 1M _
Number of lines 1 at 230 kV - 1 a t 230 kV
~
- 5. 1 at 500 kV 1 at 500 kV
- 6. 40 i na .1 span sxy 1300 rt 1300 rt d 1300 rt 1300 rt
- 7. Number of structures / 4 - 4.5 4 - 4.5 -
4 - 4.5 4 - 4.5 miles- <::
tr>
- 8. ' Conductor type / size Two" bundles 795 Two bundles 795 Three bundled 1113 Three bundled 1113 O kemil ACSR kemii AC5R kemi1 ACSR kemil ACSR f
- 9. Phase / phase clea rarece - 23 ft 23 ft 28 ft 28 ft h en
- 10. Conductor ground 27 ft s 27 ft 33 ft 33 ft. tu clearance at maximum 'i "
30 operating conditi' ,
[
u D
CL N
b N
00 b
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I i t 2 2 L M f - - - - - - -
( - - - - - 6 6 - -
5 N W 2 O /
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I S f S o I 8 9 5 s t . 2 M h f 7 3 3 5 - - - - -
S d t
5 1 1 3 - - - - -
N i A W 7 R t 3
1 T n e
P r e 6 4 2 2 2 G r t 8 6 4
- E r f 4 . 2 9 6 8 3 2 - -
9 V i D 0 2 4 4 1 1
6 8 5 1
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L S h B C t n
A I n t T T e f S L 5 - - - - -
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_ R r A e H r 3 C e s G h n . a L c o o G E
_ S i N C A t n & S C t n
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r ds as V o W
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m es n t e a l m t n l m - w a
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ta l a a o ta l r o ta t
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a kODG. M ,N0b0
O O O O O O O TABLE 3.9-3 LAND USE. CATEGORIES OCCUPIED BY TRANSMISSION CORRIDORS Classi fication of_ R/W ( Acres)
Fields and Name or Line/Section ' 'ooded Cultivated Wetlands Urban Pinos Ha rdwood S Plant Vogt le-Wad ley-Wa llace Dam-Plant Scherer 500-kV transmission line o Plant Vogtle-Wadley section 280 232 224 7 --
e Wadley-Wallace Dam section 419 310 257 13 4 e . Wallace Dam-Plant Scherer section 534 313 96 16 5 e Total 1233 855 577 36 9 i
Plant Vogtle-Erringham-Thalmann 500-kV transmission line(*)
2 e Plant Vogtle-Erringham section 408 455 385 42 o Erringham-Thaimann section 866 to 130 8 9 2 o
- v e Total 1274 1185 393 51 --
f e
Plant Vogtle-Goshen No. 1, No. 2, and No. 3 275 220 123 8 2 230-kV transmission line to
- c I
4 4
- a. Some notland acreages were also classified and counted as woodlands.
. m 3
.CL N
, A N
i CD a b
O CHATTAMOOCHEE NATIONAL FOREST O 4 l
L gg O A8 NESVISLE LAKE ALVIN W. VOGTLE ALLATOONA ELECTRIC GENER AttNG PLANT ATLAN KLONDIKE U$TA OCONEE N A TION OR 05 N FOREST NORTH CORRlQQR og
{ nn o - ALVtN w, yngygg 5 NUCLE AR PLANT
/ 2Jo KV WEST CO R RIDOR W A V NE 5 BO RO SOUTHW E ST CQ R RIDO R W AOLE Y SOUTH MACON 3
O COLUMaug I FORT BENNING BON AI R E
$AVANNgg i.
6 FORT g STEWART HATCH BAX LE Y f
ALBANY i
C3 r i O OKEFENOKEE f N ATIONAL WILOLIF E i
/
/
REFUCE /
I 14298-4 /
)
. 1 l
l O ALVIN W. VOGTLE TRANSMISSION LINE ROUTING ELECTRIC GENER ATING PLANT QOTPb O Pona UNIT 1 AND UNIT 2 FIGURE 3.9-1 433 9 Amend. 2' 4/84
, _ _ m 4
O CHATT AHOOCHEE N A TION AL FOREST O J G Ae N SveLLE L ER ALVIN W. VOGTLE ALLAT OON A ELECTRIC CENE R ATING PLANT ATLANTA C Q I AUGUSTA OCONEE W ALLACE DAM FORT 05 N O ES . 230 KV PLANT scgG 230Kv SCHERER 500 KV e WADLEY COLUMSUS O I FORT SENNING EF FINGH AM (MCIN TOSH)
I SAVANNAH b
FORT ST EW A RT P g HATCH SAMLEY f ALSANy I
I
-- Y O OKEFENOKEE N A TIONAL WILOLIF E ,
{
REFUGE 14298-4 l
t l
O ALVIN W. VOGTLE TRANSMISSION LINE ROUTING GeorgiaPower n pj;"'M["jpANl'LANT FIGURE 3.9-2 433.,
Amend. 2 4/84
I l
l l
VEGP-OLSER-4 I 4.2 TRANSMISSION FACILITIES CONSTRUCTION The environmental effects of transmission facilities
- construction were addressed in section 5.4 of the Construction Permit Stage Environmental Report (CPSER). Changes in the
-transmission line rights of way since that report are provided in section 3.9. These changes illustrated that the projec'ted 2 impacts were less than those given in the CPSER. Actions taken by Georgia Power Company to comply with the conditions of the Construction Permit relative to transmission line construction are. addressed in chapter 13 of the VEGP-OLSER.
LO .
i
.. .. .~
10:. -
p:
- Amend. 2 00070i
'4.2-1f .
4/84:
- i.
TABLE 5.2-1 (SIIEET 1 OF 2)
DIFFUSION AND DEPOSITION ESTIMATES FOR ALL RECEPTOR LOCATIONS Release Point: Plant Vent / Wake-Split Season: Annual Computer Run ID: VX-3 Distance Distance Distance to Nea r- to Nea r- to Nea r-est Milk Depleted est Meat Depleted est Milk Depleted X/Q X/Q D/Q Animal X/Q X/Q D/Q Coat X/Q X/Q D/Q Cow (m) (*) Is/m 31 _(m 41 (s/m 31 3 (s/m3) is/m31 (m4 1 Direction (s/m31 ( m )(a) __LsLm 1 1m 4 ) r m i(*3 N -
2.5E-08 2.2E-08 8.2E-11 -
2.5E-08 2.2E-08 8.2E-11 -
2.5E-08 2.2E-08 8.2E-11 NNE -
2.6E-08 2.30-08 9.0E-11 -
2.6E-00 2.3E-08 9.0E-11 -
2.6E-08 2.3E-08 9.0E-11 NE -
3.5E-08 3.2E-08 1.1E-10 -
3.5E-08 3.2E-08 1.1E-10 -
3.5E-08 3.2E-08 1.1E-10 ENE -
2.9E-08 2.6E-08 1.3E-10 -
2.9E-08 2.6E-08 1.3E-10 -
2.9E-08 2.6E-08 1.3E-10 E -
2.2E-08 2.0E-08 1.6E-10 -
2.2E-08 2.0E-08 1.6E-10 -
2.2E-08 2.0E-08 1.6E-10 ESE -
2.2E-08 1.9E-08 1.4E-10 -
2.2E-08 1.9E-08 1.4E-10 -
2.2E-08 1.9E-08 1.4E-10 SE -
2.3E-08 2.0E-08 1.1E-10 6920 2.6E-08 2.3E-08 1.4E-10 -
2.3E-08 2.0E-08 1.1E-10 I m<:
SSE -
1.3E-08 1.2E-08 6.4E-11 -
1.3E-08 1.2E-08 6.4E-11 -
1.3E-08 1.2E-08 6.4E-11 O m
S -
2.0E-08 1.8E-08 8.1E-11 7242 2.0E-08 1.8E-08 9.4E-11 -
2.0E-08 1.8E-08 8.1E-11 $
SSW -
1.8E-08 1.6E-08 9.1E-11 7805 1.8E-08 1.6E-08 9.4E-11 -
1.8E-08 1.6E-08 9.1E-11 b m
SW -
3.6E-08 3.2E-08 1.4E-10 4828 5.9E-08 5.3E-08 3.2E-10 -
3.6E-08 3.2E-08 1.4E-10 %
1 WSW -
2.8E-08 2.5E-08 1.2E-10 3862 6.2E-08 5.6E-08 3.9E-10 -
2.8E-08 2.5E-08 1.2E-10
- W -
2.5E-08 2.3E-08 1.1E-10 5713 3.6E-08 3.2E-08 1.9E-10 -
2.5E-08 2.3E-08 1.1E-10 WNW -
2.4E-08 2.2E-08 8.7E-11 4184 4.7E-08 4.3E-08 2.5E-10 -
2.4E-08 2.2E-08 8.7E-11 NW -
2.8E-08 2.6E-08 8.1E-11 6437 3.5E-08 3.2E-08 1.2E-10 -
2.8E-08 2.6E-08 8.1E-11 NNW -
2.6E-08 2.4E-08 7.6E-11 -
2.6E-08 2.4E-08 7.60-11 -
2.6E-08 2.4E-08 7.6E-11 OO 3D G. .G NH l
ag a. Receptor distance greater than 8000 m is indicated by (-); diffusion values given are for 8000 m; data collected in NN spring or 1983. 2 i co co i AA i
A
/\ .
U \
l TABLE 5.2-1 (SHEET 2 OF 2)
Distance Distance to Near- to Nea r- Nea rest est Resi- Depleted est Veg. Depleted Site Depleted dence X/Q X/Q 3 0/Q Ga rden X/Q X/Q D/Q Bounda ry X/Q X/Q D/Q Di rec t i on (mi*3 t (s/m3) (s/m 1 ( m-2 ) ( m l(83 (s/m3) (s/m3) [m -21 (mi f*3 (s/m3) (s/m31 (m-23
! N -
2.5E-08 2.2E-08 8.2E-11 -
2.5E-08 2.2E-08 8.2E-11 1344 1.4E-07 1.2E-07 1.3E-09 NNE -
2.6E-08 2.3E-08 9.0E-11 -
2.6E 08 2.3E-08 9.0E-11 1097 1.9E-07 1.7E-07 1.8E-09 NE -
3.5E-08 3.2E-08 1.1E-10 -
3.5E-08 3.2E-08 1.1E-10 1097 2.0E-07 1.8E-07 2.3E-09 I ENE -
2.9E-08 2.6E-08 1.3E-10 -
2.9E-08 2.6E-06 1.3E-10 1097 1.8E-07 1.7E-07 2.8E-09 j E -
2.2E-08 2.0E-08 1.6E-10 -
2.2E-08 2.0E-08 1.6E-10 1369 1.2E-07 1.1E-07 2.7E-09 ESE -
2.2E-08 1.9E-08 1.4E-10 -
2.2E-08 1.9E-08 1.4E-10 1817 9.4E-08 8.4E-08 1.6E-09 SE $150 3.5E-08 3.1E-08 2.3E-10 6920 2.6E-07 2.3E-07 1.4E-10 1866 8.3E-08 7.4E-08 1.2E-09 1
SSE -
1.3E-08 1.2E-08 6.4E-11 -
1.3E-08 1.2E-08 6.4E-11 1773 4.8E-08 4.4E-08 7.0E-10 S ,7242 1.9E-08 1.7E-08 9.4E-11 7242 2.0E-08 1.8E-08 9.4E-11 1(42 6.8E-08 6.1E-08 9.2I-10 <
IM O
SSW 7483 1.SE-08 1.7E-08 1.0E-10 7805 1.8E-08 1.6E-08 9.4E-11 1680 7.7E-08 7.0E-08 1.1E-09
't SW 4828 5.9E-08 5.3E-08 3.2E-10 7725 3.7E-08 3.4E-08 1.4E-10 146P 1.7E-07 1.6E-07 1.2E-09 h WSV 1931 1.2E-07 1.1E-07 1.1E-09 1931 1.2E-07 1.1E-07 1.1E-09 1462 1.5E-07 1.4E-07 1.8E-09 b n
W 5713 3.6E-08 3.2E-08 1.9E-10 7081 2.8E-08 2.6E-08 1.3E-10 1462 1.2E-07 1.1E-07 1.5E-09 P3 I
W WNW 3701 5.3E-08 4.9E-08 3.1E-10 3701 5.3E-08 4.9E-08 3.1E-10 1649 1.0E-07 9.4E-08 1.0E-09
! NW 3701 6.0E-08 5.6E-08 2.9E-10 3701 6.0E-v8 5.6E-08 2.9E-10 2240 8.5E-08 7.8E-08 6.30-10 I NNW -
2.6E-08 2.4E-08 7.6E-11 -
2.6E-08 2.4E-08 7.60-11 1840 9.4E-08 8.5E-08 7.7E-10 i
i
, yp BB oo i 33 C.. .CL
, hJ Fd
~
j #* N a. Receptor distance greater than 8000 m is indicated by (-); di rrusion va lues given a re for 8000 m; data collected in 2
);)) spring or 1983.
e, x, 4
VEGP-OLSER-5 5.5 EFFECTS OF OPERATION AND MAINTENANCE OF THE TRANSMISSION SYSTEMS (3l ~
The environmental effects of transmission lines were addressed in the Construction Permit Stage Environmental Report (CPSER)
- j. subsection 5.4.1. This section provides an update of the information presented in the CPSER. Transmission lines are
,S sited in accordance with several construction permit conditions (see Final Environmental Statement (FES) section 4.5) and thus,
() any operational impacts should be minimal.
5.5.1 ENVIRONMENTAL EFFECTS OF OPERATION OF THE TRANSMISSION '
SYSTEMS Transmission line environmental effects other than appearance can be classified into two categories, electrostatic or electromagnetic fields and corona-induced effects. These effects are sometimes referred to as nonionizing and ionizing radiation, respectively.
nx ,<
Environmental effects of high voltage lines have been under study by the electric power industry for many years. These effects include radio-and television interference and audible noises and biological effects. ,
One biological effect results from the induced voltages that electrical fields an produce. The possibility of electrical shock exists if a grounded person touches a conducting object that is insulated from the ground. For large objects (e.g.,
metal fences), the induced voltage could cause a painful discharge shock. Accordingly, fences and other large metal objects near transmission lines are routinely grounded according to the National Electric Safety Code.
(~)
\~/
Another poscible effect of transmission lines which has been investigated relates to potential disruption of pacemaker performance. However,-no serious effects to pacemaker patients from transmission lines has been reported. The most probable effect would be for a demand-type pacemaker to' revert to the asynchronous mode of operation, which pulses the heart at a.
S regular rate and represents a safety mode that is not
['J necessarily~ harmful.
5.5.1.1 ELECTROSTATIC-ELECTROMAGNETIC FIELD EFFECTS'
- (') Any conductor energized at a voltage to ground and carrying
(/ current produces electrical fields in the air or resulting space surrounding the conductor. The voltage produces a-vertical electrostatic field, and the current produces a horizontal 5.5-1
VEGP-OLSER-5 electromagnetic field between the conductor and ground. When a partially insulated object is introduced in that space, a current can be induced in the body by either or both fields.
This is a basic cause for concern from a biological standpoint The magnitude of the elsctrostatic field is a function of the applied voltage and the distance to ground. It can be calculated for given line designs and is usually expressed in kV/m measured at a height above ground equal to an average person's height. The maximum field strength under high voltage lines in the United States varies from 1 to 12 kV/m, with.the highest stresses at 765 kV. These values are maximum at only one point in the span, under the highest load current and the maximum ambient temperature which reduces clearance to ground to a minimum. BasedonmeasurementstakenonGeorgiaPowerCompanyLl (GPC) 500-kV lines, field strengths are a maximum of 5.2 kV/m 38 il ft from center, and 2.8 kV/m 75 ft from center at the edge of (2 right of way. These measurements were taken 1 m above ground ;
level. The electromagnetic field under a 500-kV transmission I line at ground level will not exceed 0.55 G maximum. By '
comparison, the earth's natural magnetic field is 0.59 G.
5.5.1.2 Corona Effects If the voltage on a given conductor is raised high enough, the conductor will go into corona, which is the breakdown (i.e.,
ionization) of the surrounding insulation media, in this case, air. Also, at normal voltage, if there is a sharp point or discontinuity on the line, such as a water droplet on the conductor or insulator breakage, the air in that local area could be stressed beyond the corona start level and breakdown will occur.
The corona arc produces radiated signals with both high and low frequency components, which can affect radio and television reception in low signal to noise reception areas. Utilities have addressed both these annoying effects either through proper initial design requirements or local maintenance.
During rain or fog, condensation or collection can cause many water droplets on the conductor, which can put the whole line in corona at normal voltage. This produces a low level audible noise which can be annoying to residents of nearby houses, particularly in rural areas. The larger the individual g conductor diameter, the lower the audible noise level; however, the problem tends to be exaggerated as transmission voltage is increased. Whether this low level noise (maximum 50 to 55 dB) is more annoying than other aversive noises remains to be proven.
5.5-2 Amend. 2 4/84 u
O x_/ VEGP-OLSER-5 5.6 OTHER EFFECTS This section discusses other effects of station operation that have not been covered in other sections of this report or covered in the Construction Permit Stage Environmental Report (CPSER) section 5.4.
.- 5.6.1 NOISE The VEGP will make noise during normal operation. However, community complaints about plant noise are not anticipated because the area is sparsely populated.
5.6.1.1 Predicted Plant Property Line Noise Levels Noise levels were predicted for seven locations along the property line during full plant operating conditions.
Predictions were made using Edison Electric Institute's Electric Power Plant Environmental Nois<a Guide.(1' The
'() significant sound-producing plant components were identified, and the effects of directional sources,-distance, and other ,
i attenuation factors were considered. The predicted levels for each location are listed in table ~5.6-1. Ambient noise levelt
- at the seven. locations were measured during a sound level survey prior to plant.startup (see section 2.7); these are also included in table 5.6-1.
5.6.1.2 ' Community Reaction to Plant' Noise
.The noise guide concludes that the most' complete procedure r3 available for evaluating the impact of plant noise on
-( ,) surrounding communities is the Modified Composite Noise Rating System (MCNR). Applying this procedure resulted in a "no reaction" prediction for:each of the seven locations 1as shown in
. table 5.6-1. l2 g
() 5~.6.2 ~ AUXILIARY BOILER, DIESEL GENERATOR, AND FLUID ~ BED DRY WASTE PROCESSOR EMISSIONS.
Air emissions.resulting from operation of the-auxiliary boiler, diesel generator, f]uid bed dry waste processor, and conform-7~3 ance;to applicable air-quality regulations are' addressed in-( ! section 3.7.
\
2/84
~
5.6-1 . Amend. 2 e
VEGP-OLSER-5 5.6.3 OTHER WASTES Any waste which has been designated as a hazardous waste by the Environmental Protecti.on Agency or any appropriate state agency shall be managed in compliance with all applicable regulations.
O O
O O
O 5.6-2
VEGP-OLSER-5 5.7 RESOURCES COMMITTED N, The operation of the VEGP will involve the commitment and use of
various natural resources and will result in certain irretriev-able and irreversible commitments of natural resources. Because of the reduction from four units to two units at VEGP, the committed resources will be substantially reduced from those summarized in the Final Environmental Statement and chapter 10 I
of the Construction Permit Stage Environmental Report (CPSER).
_ Air, water, and land commitments are retrievable upon cessation of plant operation. At the end of the useful life of this plant, the buildings could be removed and the grounds returned to essentially their original condition; however, it is most likely that the concrete structures would remain (subsection 5.8).
The irretrievable resources committed at the VEGP would be the uranium used in the form of nuclear fuel and the materials used for construction of the plant. Of these resources committed, only the nuclear fuel is unique, because the commitment and use of air, water, land, and construction materials would be similar for a fossil plant.
A number of the following acreage figures have changed since publication of the CPSER. These changes are ,due to various reasons, such as reduction in the number of units and design changes. The following resources are committed for the operation of the VEGP:
A. Land
- 1. Site - The VEGP site consists of 3169 acres of land. A list of plant facilities and acreages is found in subsection 2.1.3. The plant facilities will occupy approximately 717 acres of the site, thus changing their use from agricultural and timber production to electrical generation. The remaining 2452 acres will either be managed in accordance with acceptable land management I techniques or be landscaped, fertilized, and reseeded after construction is completed. At the end of the useful life of the plant, the land can be returned to agricultural or other uses with the necessary expenditures of money and human effort.
- 2. Transmission lines - The offsite transmission line rights of way will consist of approximately 6200 l2 acres which will be removed from the growing of timber and agricultural products; however, this land can be returned to its former state if desired.
5.7-1 Amend. 1 2/84 Amend. 2 4/84
VEGP-OLSER-5
- 3. Access railroad - The offsite access railroad spur will consist of approximately 386 acres which will be removed from the growing of timber and agricultural products; however, this land can be returned to its former state if desired.
- 4. The total area of the plant site, the transmission line rights of way, and the access railroad spur is approximately 6500 acres, which is about 0.12 percent of the land within a 50-mile radius of the site. The acreage used is very similar to the land within the 50-mile radius. No unique or unusual areas will be consumed by the land use.
B. Water Savannah River water converted to water vapor by operation of the VEGP cooling towers represents a minor loss to the Savannah River (at maximum consumptive use: approximately 1.2 percent of 5800 ft'/s at low flow and 0.6 percent of 10,300 ft'/s at average flow). This water vapor will be returned in the form of precipitation due to natural phenomena. Groundwater used for makeup, drinking, etc., will be obtained from wells at a maximum rate of approximately 2300 gal / min and average rate of approximately 1333 gal / min. The VEGP water consumptive use is discussed in subsection ,
3.3.3.
C. Uranium The reactors are fueled with uranium dioxide pellets enriched in the fissionable isotope U-235. The initial fuel load for each core consists of 193 fuel assemblies divided into regions with average enrichments of 2.1, 2.6, and 3.1 weight percent U-235. Each enrichment region represents approximately one-third of the initial core. Fuel requirements for operation of the reactors depend upon fuel management practices. h However, a typical annual cycle would require replacement of approximately one-third of each core annually. Assuming 75 percent capacity, the plant would require an annual commitment per reactor of approximately 440,000 lb of U 30s (natural uranium),
assuming no reprocessing of spent fuel. Over the lh plant's 40-year life, this represents a commitment of approximately 17,600 tons of Uso s or approximately 0.5 percent of the total estimated uranium resources in the United States in the forward-cost category of $100 per lb of U 3 0 or less.
lh 5.7-2
l'}
t., j VEGP-OLSER-6 TABLE 6.1-1 (SHEET 1 OF 4)
RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM f-]y
'w Sample Medium
_and Location Frequency Analysis r^w Airborne particulates Continual sampler Radioiodine
(_) and radioiodine operation with cannister:
sample collection I-131 Indicator stations weekly 7 - Simulator Particulate building sampler:
(1.5 miles SE) gross beta activity 10 - Meteorogogical following tower filter change; ca>
(1.1 miles SSW) composite (by location) for 16 - Hancock gamma isotopic Landing Road quarterly
(')h
's (1.4 miles NNW)
Nearest community
35 - Girard (7.5 miles SSE) l2 Control station 36 - Waynesboro (15 miles WSW) l( \) Direct radiation Quarterly , Gamma dose Thermoluminescent dosimeters (see table 6.1-2
, for locations)
)
8"'g s
Amend. 2 4/84
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{.-
\ .
VEGP-OLSER-Q i NUCLEAR REGULATORY COMMISSION QUESTIONS AND RESPONSES INDEX VOGTLE ELECTRIC GENERATING PLANT - UNITS 1 AND 2 4
O. OPERATING LICENSE STAGE ENVIRONMENTAL REPORT NRC DOCKET NUMBERS 50-424 AND 50-425 OLSER q .
NRC Question Section/ Subsection Keywords E100.1 -
Summary of significant changes since Construction Permit
- review E290.1 2.2.1 Requests for site terrestrial ecology studies E290.2 F2.2-1 Site vegetation map E290.3 3.6.4.2 Salt drift emissions E290.4 3.9 Transmission line right-of-way E290.5 5.5.2 Herbicide use E290.6. T12.1-4 Location of aerial crossings over navigable waters
, E290.7- -
Requests for aerial photographs of site '
E291.1 2.4 Surface water quality data E291.2 2.4 USGS water quality data a-~ -
-E291.3 2.4 Pollutant types and sources
.( that influence water quality near the site E291.4 3.3- Clarification of water flowrates
) E291.5 F3.3-1 Clarification of " normal design conditions" i E291.6 3.3 Potential for short circuiting ,
of makeup water to the 7s blowdown line
)
E291.7 3.3, 3.4 Clarification of river. water makeup system flowrates' Q-i. Amend. 1 2/84
VEGP-OLSER-Q OLSER NRC Question Section/ Subsection Keywords E291.8 3.6 Chlorine injection and control / monitoring points E291.9 3.6 Proposed chlorination program and expected concentrations E291.10 3.6 Corbicula control E291.11 5.3.1 Plant chemical and biocide discharge E291.12 12.1 Copy of discharge pipe water quality certification E291.13 2.2.2.3 GPC's response to IE Bulletin 81-83 on Corbicula abundance E291.14 2.2.2.5.2 Other zooplankton studies conducted on the Savannah River E291.15 3.6.1.1 Corbicula spawning season E291.16 5.1.3.1 Status of CWA Section 316(b) demonstration E291.17 6.1 Requests for site ecological studies E291.18 6.1.1.2 Requests for site ecological studies E291.19 6.1.4.2.1.5
Reference:
Georgia Coastal 2
Fisheries Investigation E311.1 2.1.1 Exclusion area boundary reference point h E311.2 2.1.2 1980 census data used for population projections E311.3 2.1.3 Distance and direction of towns, villages, etc., within lh 10 miles of the site E320.1 8.1 Justification of capacity factors used O
Q-ii Amend. 1 2/84 Amend. 2 4/84
. . _ - _ .- - - _- = . _ _ - ~_
r VEGP-OLSER-Q TABLE E100.1-1 (SHEET 4'OF 6)
OLSER CPSER Description of Change 3.7 3.7, 3.8 No significant change in the design of
- the sanitary treatment facility.
Fluid bed dry waste processor emissions to air.
3.8 3.6.5, 5.4.2 Transportation of new fuel and spent fuel is set forth in 10 CFR 51.20, table S-4.
i' 3.9 3.2 Number of transmission line rights-of-way reduced from six corriders containing eight 500-kV lines and three 230-kV lines occupying 12,600 acres to four corridors 2 containing two 500-kV lines and four 230-kV lines occupying approximately 6200 acres.
4
() 4.0 4.0 No discussion required concerning construction impacts. ;
4.4 -
Radiological impact on Unit 2 construction workers from the operation of Unit 1.
4 5.1.1 5.1 Revised U.S. EPA effluent limitation guidelines for steam electric generating plants. Operational-(NPDES) permit application submitted.
5.1. 2 - 5.1.1, 5.1.3 Change in design of discharge system from a submerged multiport diffuser to a
'(f-')s
_, ;' single-point discharge pipe. . The-thermal
, . effects of the VEGP effluent is updated.
5.1.3 5.1.3 Intake and discharge structure design change. Studies submitted to NRC
<~s., evaluating impacts of each design'on
() aquatic of the Savannah River.
5.1.4 5.1.5,.3.1.1 Environmental effects of operating the heat dissipation. system effectively halved.
-n. 5;2, 5.5- Radiation doses calculated according to
( J- 5.2
~~' Regulatory Guide 1.109. Doses remain--
- lower 1than design _ objectives of NRC.
Amend.'1. 2/84 9 _ Amend._2c 4/84
() VEGP-OLSER-Q TABLE E100.1-1 (SHEET 5 OF 6)
OLSER CPSER Description cf Change 5.3 5.3 Impacts reduced in OLSER due to design changes, reduction of plant size, and revised U.S. EPA effluent limitation guidelines for steam electric generating plants. Discharge regulated by NPDES permit.
5.4 5.3 Sanitary treatment plant has no significant design changes. Sanitary waste effluent regulated under the NPDES permit. Release of sanitary waste will not adversely impact the Savannah River.
5.5 5.4.1 Additional information on the health effects, noise levels, electrical field strengths, and corona effects are 2 p . .
presented in the OLSER.
t 5.6 -
Ambient noise level compared with ,
predicted operational noise level. No !
adverse community impacts anticipated. -
5.7 10.0 Reduction from four to two units will substantially reduce the resources committed summarized in the CPSER (water, land, uranium, and construction material).
5.8 9.0 New information presented on decommissioning. ^
-yg 6.1 5.5 Biological and radiological
~
t
)_ preoperational monitoring programs conducted to update-those presented in the'CPSER.
6.2 ~ 5.5 Operational radiological monitoring 7y program established by the Radiological t
m j- Effluent Technical Specifications.
Aquatic' monitoring-program established by the NPDES permit.
6.3 --
New information presented. Environmental.
,S monitoring programs carried out by public t ! agencies near.the VEGP are cited.
V Amend. 1 2/84 Amend. 2- 4/84
=
r~
k_-)/ VEGP-OLSER-Q Question E290.4 (OLSER 3.9)
(' This section states that changes to the transmission line
(.)) rights-of-way since the Construction Permit (CP) were provided to the Nuclear Regulatory Commission (NRC) by letter dated February 1, 1982, from D. Dutton, Georgia Power Company (GPC),
to D. Eisenhut, NRC. The maps included with this letter show a completely new 500-kV line going from the Vogtle plant to the Effingham plant.
(~}
Because this proposed line has never been evaluated by NRC we will need the following information if different from information already provided:
A. Basic electrical design parameters, including transmission design voltage or voltages, line capacity, conductor type and configuration, spacing between phases, minimum conductor clearances to ground, maximum predicted electric field strength (s) at 1 m above ground, the predicted electric field strength (s) at the edge of the right-of-way in kilovolto per meter (kV/m),
f and the design basis for these values.
(k ') B. Predicted noise levels resulting from transmission- ,
system operation. +
C. Basic structural design parameters, including illustrations and descriptions of towers, conductors, and other structures, with dimensions, materials, color, and finish.
D. Topographic maps (15-minute scale as a rule) or aerial photographs showing the proposed corridor or corridors and all existing major high-voltage corridors in the region.
s
( I E. Lengths, widths, and area of rights-of-way, including modifications and/or use of existing rights-of-way and other facilities for the proposed project.
F. General methods of construction, e.g., tower
--g foundations, stringing, location of access roads, span
! length, and clearing of rights-of-way.
G. If available, tower and substation locations.
Attachment 2 of the February 1, 1982 letter labels the Vogtle to
,y
- North Goshen line as 230 kV. Does this mean that the two 500-kV
- lines proposed at the CP stage (Final Environmental Statement-Construction Permit (FES-CP), page 3-40) between these two points QE290.4-1 Amend. 1 2/84
VEGP-OLSER-Q will not be built? Provide details of any modifications to this line from that proposed at the CP stage.
Attachment 2 also shows a line going from the Vogtle plant to Wadley with a short spur to Waynesboro. Provide details of any modifications of this line since the CP stage. h
Response
Section 3.9 of the VEGP-OLSER has been amended to provide a h description of the current planned transmisson system associated with VEGP Units 1 and 2. The following addresses responses to the specific items requested in question 290.4.
A. Table 3.9-1 has been added to the VEGP-OLSER to address basic electrical design parameters. Section 5.5 of the VEGP-OLSER has been amended to address electric field strengths. These field strengths were based on measurements taken 1 m above the ground by Georgia Power Company on existing 500-kV lines.
B. Predicted noise levels under 500-kV lines are addressed
- in section 5.5.1.2 of the VEGP-OLSER.
C. Basic structural design parameters for the VEGP transmission line structues (230 kV and 500 kV) are the same aa those described in the Construction Permit Stage Environmental Report (CPSER), section 5.4.1.3.
D. Topographic maps illustrating proposed corridors and existing corridors in the region were provided for the staff's inspection during the March 21-22, 1984 site visit.
E. Section 3.9 of the VECP-OLSER has been amended to include table 3.9-2 which illustrates the lengths and widths of proposed transmission corridors and table 3.9-3 showing the land-use categories affected.
F. General methods of construction were discussed with the staff during the March 21-22, 1984 site visit. It was noted that these methods are the same as described in section 5.4.1.2 of the CPSER.
G. Specific tower locations have not been identified for much of the proposed transmission system. Tower locations for the VEGP-Wadley portion of the transmission system were reviewed by the staff during O
Amend. 1 2/84 QE290.4-2 Amend. 2 4/84
[
VEGP-OLSER-Q l 1
i the March 21-22, 1984 site visit. Substation ;
i locations, existing and possible future additions, are !
I illustrated on figure 3.9-2 of the VEGP-OLSER. l l
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} Question E290.6 (OLSER Table 12.1-4) j e
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This table shows that authorization for a permit for aerial h- crossing over navigable waters is required from the U.L. Army ;
Corps of Engineers. Indicate where this river crossing is to i take place.
t R_e_sponse l l i
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Permits for aerial crossing over navigable waters for the !
9 VEGP/Thalmann line have been obtained for two locations: l2 l'
- 1. The Altamaha River near Evert, Georgia, between i McIntosh and.Glynn Counties.
L 2. Ogeechee River near Richmond Hill, Georgia, between I Bryan and Chatham Counties. f Table 12.1-4 has been amended to include these permits. l i
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[QE290.6'1 Amend. 2 4/84
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() VEGP-OLSER-Q Question E451_.9 _(Regulatory Guide 4.2, section 6.1.3, and Safety Review Plan 2.3.31_(_FSAR 2.3.2)
O
(_j Table 2.3.2-2 of the FSAR presents the parameters measured on the Vogtle meteorological tower, the heights of measurement, and the instrument and/or sensor characteristics. Provide estimates of the overall system accuracy for each parameter, considering errors introduced by the sensor, cable, signal conditioner, and data reduction process, and compare these system accuracies with k'_)T those presented in Regulatory Guide 1.23.
Response
The VEGP meteorological tower has both analog and digital recording. Both look at the same signal (parallel) for redundancy.
Wind Speed Regulatory Guide 1.23 calls for an accuracy of time-averaged values to +0.5 mph and a starting speed of anemometer <1 mph. The values for wind speed recording on the meteorological
[}
N- tower are instantaneous values with a starting speed of anemometer (0.6 mph). Parameter accuracy estimate is as follows: 2 e Wind speed transmitter - il percent e Translator - +0.1 percent e Recorder (analog strip chart)~- +0.5 percent Parameter Accuracy = (+0.01)2 +
(10.001)2 + (+0.005)2 gy = +1.12 percent = +0.56 mph (Wind speed range of 0-50 mph)
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~j Amend. 1 2/84 QE451.9-1 Amend. 2 4/84
VEGP-OLSER-Q O
Wind Direction Regulatory Guide 1.23 calls for an accuracy of instantaneous recorded values +5 . Parameter accuracy estimate for the meteorological tower is as follows:
e Wind direction transmitter - +1 percent e Translator - +0.1 percent e Recorder (analog strip chart) - +0.5 percent Parameter Accuracy = (10.01)2 + (+0.001)2 + (+0.005)"
= 11.12 percent = +6.0 (Wind direction range of 540 )
2 Differential Temperature Regulatory Guide 1.23 calls for an accuracy of +0.1 C = 0.18 F.
Parameter accuracy estimate for the meteorological tower is as follows:
e Thermistor - +0.15 C = 0.0090 e Translator - +0.1 percent e Recorder (analog strip chart) - +0.5 percent Parameter Accuracy = (+0.009)2 + (+0.001)2 + (10.005)8
= +1.03 percent = 0.31*F (AT range of 30 F: -10 F to 20 F)
O O
O QE451.9-2 Amend. 2 4/84
__ _ _ __ _ __ - _ . _ . . _ . ._. _ _ _ . _ . . _ _ . _ - _ , _ . . ~ . _ - _ _ - - _ _ _ - .
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, All the hbove accuracies were calculated considering: an analog recorder. accuracy gf 20.5 percent; data is also recorded in parallel via data couplet and magnetic tape; and the stated Oa accuracy of the data coupler is 10.1 percent. Data is recorded
.overy 60 s.~
Eutimated meteorological tower accuracies recorded on
,a magnetic tape are:
e Wind speed parameter =
(+0.001)" + (+0.001): + (+0.001):
, = 1.009 percent = +0.5045 mph
~,
e Windsdirbction parameter =
(+0.001): + ( 0.001): +
(+0.001)2 2
= 1.009 percent = +5.45 e Differential temperature = +0.009)2 + (+0.001)" + (+0.001)"
parameter .
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'5, s' = 0.91 percent = + 0.273 E = 0.15*C 9 d s e Ambient temperature = ( +,0. 0022 5 ) 2 + (+0.001)' +
(10.001)2 s, patameter.
s
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+0.266 percent = 10.319"F = 10.177 C
=
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e Rain gauge paramet'ur s
=
(+0.005)2 +
(1 0 001)' + (+0.001)2 l s. s,
= \ O'.5519 percent = 0.519" H 2O 1:
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VEGP-OLSER-Q Ambient Temperature Regulatory Guide 1.23 calls for an accuracy of +0.5 C.
Parameter accuracy estimation for the meteorological tower is as ,
follows:
e Thermistor - = +0.00225
+0.15 C = +0.27 F = {20 e Translator - +0.1 percent e Recorder (analog strip chart) - +0.5 percent ,
Parameter Accuracy = (+0.00225)2 +
(+0.001)2 +
(10.005)2
= +0.557 percent = +0.67 F = +0.37 C (Ambient temperature range i
l of -10 F to 110 F) 2 l
Rain Gauge (No guidelines per Regulatory Guide 1.23) ,
Parameter accuracy estiraate for the meteorological tower is as h follows:
e Rain gauge transmitter - +0.5 percent e Translator - +0.1 percent e Recorder (analog strip chart) - 10.5 percent ParameterAccuracy=f(+0.005): + (+0.001)2 + (+0.005)2
= 0.714 percent = 0.0714" H O 4
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I QE451.9-4 Amend. 2 4/84
VEGP-OLSER-Q Question E451.10 (Safety Review Plan 2.3.3) (FSAR 2.3.2)
- The technique for measuring vertical temperature gradient at the k VEGP site is not clear from the information presented in table 2.3.2-2 of the Final Safety Analysis Report (FSAR). Vertical temperature gradient is most often measured directly (e.g.,
through a resistance bridge circuit) to obtain the measurement system accuracy for this parameter specified in Regulatory Guide 1.23.
Generally, the subtraction of two temperature measurements is considerably less accurate than a direct mensure of temperature difference. At other sites reviewed by the Nuclear Regulatory Commission, an accuracy of vertical temperature gradient determined by the subtraction of two temperatures has often exceeded the specification in Regulatory Guide 1.23.
A. Provide an expanded discussion of the measurement of vertical temperature gradient and clarify the measurement technique.
_s B. If vertical temperature gradient is determined by i subtraction of two temperatures, (1) indicate whether the sensers are matched at installation and .
I replacement; (2) indicate the " drift" between sensors found at instrument calibration; (3) identify the ,
average period considered for the determination of temperature difference; and (4) clarify the computational procedures for the determination of temperature difference (i.e., is temperature difference computed for each interrogation of the sensors or from an ensemble average of temperature measurements).
Response
r~N . .
( ,) Vertical temperature gradient (on-the old tower'at the VEGP) is measured directly, through a resistance bridge circuit. The differential temperature is determined ~using two-linear thermistor temperature probes. These probes and a resistor network-form two resistive voltage divider strings,'one for each-rs probe. A change in temperature causes a, change in the probe 2
' ',)
resistance and therefore a change in the voltage in'the resistor network. An FET switch chops the dc voltage levels producing a square wave ac signal whose peak-to-peak.value-is the difference of the sensor voltages. This ac' signal'is amplified and-
-chopped, producing a dc-level' proportional to the difference of
,~ the temperature probes.
i Amend. 1 2/84' QE451.10 Amend. 2 4/84~
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I i ' TABLE E451.12-1~(SHEET 1 OF 2)
EXTENDED'OUTAGS PERIODS SINCE DECEMBER 1972 CAUSES OF THE OUTAGE AND CORRECTIVE ACTIONS TAKEN l
F i rst Yea r - December 4. 13J2 through December 3. 1973 2
~
- Pa rametec Outaae Perlod Cause Corrective Action
- Wind speed 33' feet .6/14/73 - 7/12/73 Lightning Replaced damaged equipment l
. Wind speed 33 reet. 5/24/73 - 5/30/73' Replacement or instrument NA booms 6/14/73 - 7/12/73 wind speed 150 feet. Lightning Replaced damaged. equipment i Wind direction 33 feet 6/14/73.- 7/12/73 Lightning' Replaced damaged equipment i
i Wind direction 150 reet 5/24/73 - 5/30/73 Replacement of instrument NA t boom
- Wind direction 150 feet 6/14/73 - 7/12/73 . Lightning Replaced damaged equipment 4 i M !
i . Delta-T.(150 reet'- 33 feet) 6/14/73 - 7/12/73 Lightning Replaced damaged equipment O
! 'O .
12/22/72:- 12/27/72
. Temperature ambient .
. Tempe ra tu re amb ient '
Records incomplete -
h
.6/14/73 .7/12/73 Lightning Replaced damaged equipment h i J Temperature dew point' M l 12/22/72.- 12/26/72 Records incomplete -
lc I l 4
Temperature dew point ' 6/14/73 - 7/12/73 Lightning- Replaced damaged equipment O 1
. Precipitation:
. P rec i pi ta t ion '
3/31/73 - 5/1/73-6/14/73 - 7/12/73 Bad potentiometer on rain gage Lightning Replaced potentiometer Replaced damaged equipment l2 Second Yea r - April 4. 1977 throuah April 3. 1978 Pa rame te r - Outaae Period Cause Corrective Action j
~
' De l ta-T ( 150 reet . 33 fee t ) - 5/14/77.-.5/22/77 Strip chart recorder ra ilure Replaced the rollowing:
amplifier, cha r t-d rive
>> motor, powe r supply, modu la to r i I
. 1 t$ to s -m -
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O ;O O o o .o o TABLE E451.12-1 (SHEET 2 OF'2)
T h i rd Yea r - Ap r i l is. 1978 through April 3. 1979 Pa ramete r Outage Period Cause Corrective Action Wind [ speed 33 re'et ! '7/1/78 - 7/7/78 Lightning Replaced damaged parts Wind speed 150 feet 7/1/78 7/7/78 Lightning Replaced damaged pa rts Wind direction 33 feet' 7/1/78 - 7/7/78 Lightning Replaced damaged parts Wind direction 150 feet 7/1/78 - 7/7/78 Lightning Replaced damaged parts
-Delta-T..(150 feet - 33 feet) 7/1/78 - 7/7/78 Lightning. Replaced damaged parts (Temperature ambient 7/1/78 - 7/10/78' Lightning Replaced damaged parts Temperature dew point 7/1/78 .7/7/78 Lightning Replaced damaged parts 2 Temperature dew point 8/21/78 - 8/25/78 Lightnir.; Replaced damaged pa rts Precipitation 7/1/78 - 7/7/78 Lightning Peplaced damaged parts h O
Precipitation 8/21/78 ,9/8/78. Lightning. Replaced damaged parts I2 7 O
Fourth Year - April 14 1980 through April 3. 1981 h M
Pa ramete r .. Outage Period Cause Corrective Action W Delta-T.(150 feet - 33 feet) 10/13/80 - 10/20/80 Faulty aspirator motor Replaced motor sii u ta
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,( .a. Information for the fourth year was taken f rom check sheets only.
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