ML20072E785

Suppl 2 to Environ Rept - OL Stage

ML20072E785
Person / Time
Site:	Marble Hill
Issue date:	06/30/1983
From:	PSI ENERGY, INC. A/K/A PUBLIC SERVICE CO. OF INDIANA
To:
Shared Package
ML20072E758	List: ML20072E755 ML20072E785
References
ENVR-830630, NUDOCS 8306270149
Download: ML20072E785 (46)

Text

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MH 1&2 ER-OL INSTRUCTION SHEET To update your copy-of the Marble Hill Nuclear Generating Station - Units 1 and 2 Environmental Report - Operating License Stage,.please remove the indicated pages and replace them'with the attached Supplement 2 pages.

REMOVE INSERT VOLUME 1 Contents Page ii Contents Page ii Page 2.0-iv Pages 2.0-iv and 2.0-iva Page.2.1-23 Page 2.1-23*

Page 2.6-3 Page 2.6-3 and 2.6-3a VOLUME 2 Contents Page ii Contents Page ii Page 5.1-3 Page 5.1-3*

Page 5.1-9 and 5.1-10 Pages 5.1-9, 5.1-10, 5.1-10a Page 5.1-12 Pages 5.1-12 and 5.1-13 Pages 5.1-20 through 5.1-23 Pages 5.1-20'through 5.1-23 Figures 5.1-1 and 5.1-2 Figures 5.1-1 and 5.1-2 Page 6.0-iv Page 6.0-iv Page 6.1-39 Pages 6.1-39 and 6.1-39a Pages 6.1-54 through 6.1-56 Pages 6.1-54, 6.1-55, 6.1-56, 6.- 1-5 6 a, 6.1-56b, 6.1-56c

. Figures 6.1-5 through 6.1-8 Figures 6.1-5 through 6.1-11 Page Q290.6-1 Page Q290.6-1 Page Q290.7-1 Page Q290.7-1 Page Q290.8-1 Page Q290.8-1 After Page Q470.6-1 Supplement 2 Tab followed (do not remove) by Pages S2-1 and S2-2

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j CONTENTS (Cont'd)

VOLUME 2

j Chapter 13.0

- References 2

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Supplement 1

- NRC Ouestions and Responses 2

l Supplement 2

- Voluntary Revisions 2

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TABLE OF CONTENTS (Cont'd)

PAGE 2.4 HYDROLOGY 2.4-1 2.4.1 Surface Water Hydrology 2.4-1 2.4.1.1 Ohio River Basin Characteristics 2.4-1 2.4.1.2 Ohio River Flow Characteristics 2.4-1 2.4.1.3 Physical, Chemical and Biological Characteristics of Surface Water 2.4-2 2.4.2 Groundwater Hydrology 2.4-3 2.4.2.1 Regional and Onsite Use 2.4-3 2.4.2.2 Groundwater Conditions 2.4-3 2.4.2.2.1 Uplands 2.4-4 2.4.2.2.2 Valley Bottoms 2.4-4 2.4.3 Water Quality Standards 2.4-4 2.4A WATER OUALITY STANDARDS FOR ALL WATERS WITHIN THE STATE OF INDIANA (330 IAC 1-1) 2.4A-1 2.5 GEOLOGY 2.5-1 2.5.1 Rough Creek Graben 2.5-1 2.5.2 Alluvial-Glaciofluvial Deposits 2.5-1 2.5.3 Seismicity 2.5-1 2.6 REGIONAL 'iISTOR]C, ARCHAEOLOGICAL, ARCHITEC-TURAL, SCENIC, CULTURAL, AND NATURAL FEATURES 2.6-1 2.6.1 History 2.6-1 2.6.2 Archaeology 2.6-1 2.6.2.1 Floodplain 2.6-1 2.6.2.2 Railroad Corridor 2.6-2 2.6.2.3 Marble Hill to Columbus 765 kV Trans-mission Line Corridor 2.6-2 l

2.6.2.4 Marble Hill to Jefferson Transmission l-Line Corridor 2.6-3 2.6.2.5 Elizabethtown to Gwynneville Transmission Line Corridor 2.0-3 2.6.2.5.1 Elizabethtown Substation 2.6-3 2.6.2.5.2 Gwynneville Substation 2.6-2 2

2.6.3 Natural Landmarks 2.6-3a l

2.6A CORRESPONDENCE CONCERNING ARCHAEOLOGICAL SITES 2.6A-1 2.7 NOISE 2.7-1 2.7.1 Survey Results 2.7-1 2.7.1.1 Leg 2.7-1 2.7.1.1.1 winter Baseline Results 2.7-1 2.7.1.1.2 Summer Baseline Results 2.7-1 l

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MH 1&2 ER-OL TABLE OF CONTENTS (Cont'd)

PAGE 2.7.1.3 Construction Noise 2.7-2 O

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TABE 2.1-3 (Cont'd)

PROJECTED DISTANCE AND 1980 2030 DIRECTICN a

b CITY STATE POPULATION popgng77eg (in miles)

Taylorville KY 801 1,167 39.5 S Jonesville IN 213 276 39.6 NW Rising Sun IN 2,478-3,607 39.8 NE Crandall IN 176 320 39.9 WSW Milan IN 1,556 2,348-34.9 NNE Moores Hill IN 566 918 40.1 NNE Westport IN 1,450

. 2,078 40.2 N valley Station (U)

KY 24,474 39,320 40.7 SSW Fredericksburg IN 233 346 41.4 WSW Elizabethtown IN 603 942 41.9 NNW Napoleon IN 246 335 41.9 N Frankfort KY 25,973 52,421 42.1 SW Milhousen IN 214 273 42.1 N Aurara IN 3,816 4,703 42.6 NE Medora IN 853 1,134 42.8 WNW Elizabeth IN 178 263 43.6 SW Campbellsburg IN 695 896 44.1 W New Middletown IN 115 171 44.3 SW Shepherdsv111e KY 4,454 11,244 44.5 SSW Livonia IN 120 162 45.0 W Corydon IN 2,724 4,115 45.3 SW Hardinsburg IN 298 443 45.7 WSW Cry Ridge KY 1,250-2,720 46.0 E Saltillo IN 134 171 46.0 W Fairfield KY 169 358 46.4 S Lawrenceburg IN 4,403 5,615 46.5 NE Crittenden KY 597 1,299 46.8 ENE Stamping Ground KY 562 1,136

-47.1 ESE Greendale IN 3,795 4,839 47.2 NE williamstown KY 2,502 5,444 47.4 E Sunman IN 924 1,396 47.6 NNE D

Bloomfield KY 954 1,495 47.9 S

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Corinth KY 258 561 48.0 E

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Hartsville IN 379 621 48.0 NNW Walton KY 1,651 3,811 48.3 ENE Milltown IN 1,006 1,566 48.4 WSW Columbus IN 30,292 40,493 48.8 NNW Newpoint IN 296 341 49.2 N Lawrenceburg KY 5,167 11,868 49.3 SE Batesville '

IN 4,152 5,528 49.4 NNE i

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l Sources a.

U.S. Department of Cornmerce (1981a, Tables 1 and 2: U.S. Department l

of Comerce 1981b, Tables 1 and 2).

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Sargent & Lundy DEMOG Program.

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inclusion in the National register of Historic Places by both the

\\m-Indiana SHPO and the Keeper of the National Register (see Appendix 2.6A).

The mitigation plan for this site, which 1

includes moving the tower and avoiding the archaeological finding, has been approved by the Indiana SHPO and the USNRC (see Appendix 2.6A).

2.6.2.4 Marble Hill to Jefferson Transmission Line Corridor The Marble Hill to Jefferson Transmission Line is described in detail in ER-OL Section 3.9.

Archaeological reconnaissance of the corridor will begin in 1983.

Results of this survey will be available following completion of the study.

2.6.2.5 Elizabethtown to Gwynneville Transmission Line Corridor The Elizabethtown to Gwynneville Transmission Line and associated substations are described in detail in ER-OL Section 3.9.

Archaeological reconnaissance of the corridor will begin in 1984; results will be available following completion of the survey.

Results of archaeological reconnaissance of the substations are presented in the following subsections.

2.6.2.5.1 Elizabethtown Substation A Phase 1 archaeological reconnaissance of the proposed 765 kV Elizabethtown Substation was completed in August 1980.

s The Phase I reconnaissance, which included inspection of exposed ground areas and shovel probes, was conducted throughout an 80-acre tract of land in which the 10-acre substation will be located.

Two prehistcric sites (12 B 428 and 12 B 198) were recommended for evaluation.

Subsequent Phase II test excavations at 12 B 428 indicated that no cultural deposits have been preserved below the exinting disturbed plowzone; no additional investigations were recomtended.

Undisturbed prehistoric 2

cultural deposits were encountered in portions of 12 B 198.

However, the material found was limited to lithic debris (chert flakes and thermally cracked stone) of unspecific cultural affiliation, and additional studies were not recommended.

It was determined that neither site meets the criteria of eligibility for nomination to the National Register of Historic Places.

In conclusion, construction and operation of the Elizabethtown Substation will not affect significant archaeological resources.

2.6.2.5.2 Gwynneville Substation l

A Phase I archaeological reconnaissance of the proposed Gwynneville 765 kV Substation was completed in March 1983.

The Phase I reconnaissance was conducted throughout a 106-acre tract of land in which the 16-acre substation will be located.

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Three prehistoric sites (12 Sh 142, 12 Sh 143, and 12 Sh 147) and

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one historic site (12 Sh 148) were recommended for Phase II evaluation.

The Phase II test excavations indicated that sites 12 Sh 142, 12 Sh 143, 12 Sh 147, and 12 Sh 148 do not meet the criteria for nomination to the National Register'of Historic Places.

No sub-plowzone artifacts, features, or cultural stratigraphy were located.

The deep plowing that has been conducted on these sites has disturbed any artifact patterns 2

associated with the prehistoric and historic phases of the si s.

Beccuse of this disturbance, the sites were not recommended potentially significant.

In conclusion, construction and operation of the Gwynnevi)'

Substation will not affect any significant archaeological recources.

2.6.3 Natural Landmarks The information for this subsection i p

.ed in Subsection 2.3.3 of the ER-CP except for the f6

.2g additions.

The cemetery on the Marble Hill site pr4perty has been enclosed with a fence to prevent disturbance du-g construction.

Controlled access to the cemetery will be et

.ained throughout operation of Marble Hill 1&2.

Natural areas at are located in the vicinity of the transmission line corridots are listed in ER-OL l

Table 3.9-1.

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CONTENTS (Cont'd)

VOLUME Chapter 13.0

- References 2

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Supplement 1

- NRC Questions and Responses 2

Supplement 2

- Voluntary Revisions 2

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between 1977 and 1981 has been toward increasing Corbicula density.

Corbicula density in the vicinity of the Marble Hill site is considered to be oscillating above the optimum carrying capacity of the ecosystem of the Ohio River; it is expected to reach an equilibrium density sometime in future.

Due to the relatively small volume of heated water that will be discharged from Marble Hill 1&2 to the Ohio River, no significant impact upon the benthic community, including Corbicula, is anticipated.

5.1.3.2 Thermal Effects on Fish The preoperational ecological monitoring data collected from 1977 through 1981 confirm the results of the baseline studies conducted in 1974.

In general, the predominant species of adult fish in the Ohio River in the vicinity of the Marble Hill site are gizzard shad, emerald shiner, and channel catfish, followed by sauger, longnose gar, and freshwater drum.

As shown in ER-CP Table 5.1-6, gizzard shad, channel catfish, and longnose gar have been found in the Wabash River at temperatures of up to approximately 940 F; freshwater drum, although slightly less tolerant of high temperatures, has been found at temperatures in excess of 900 F.

Oak Ridge National Laboratory (1981, pp.

4-2, 4-3, 4-4, and 4-8) reports the following upper lethal temperatures for the predominant fish found in the Ohio River in the vicinity of the Marble Hill site:

Gizzard shad 31.70 C (89.00 F) 4 Emerald shinec 37.70 C (99.90 F)

Channel catfish 38.00 C (100.40 F)

Sauger 30.40 C (86.70 F) l i

Freshwater drum 34.00 F (93.20 F)

These values, with the exception of the value for sauger, represent the critical thermal maximum, generally considered to j

be the point at which locomotory activity becomes disorganized and the fish loses its ability to escape from adverse conditions (Oak Ridge National Laboratory 1981, p.

1-3).

The value for I

sauger represents the temperature at which 50% of a group of test fish were alive after exposure for 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br />.

No-information on the upper lethal temperature for longnose gar is readily available.

However, this species is generally considered to be tolerant of relatively high temperature (see ER-CP Table 5.1-6).

i Inasmuch as the maximum predicted temperature of the blowdown from Marble Hill 1&2 is approximately 890 F under extreme conditions (see ER-OL Table 5.1-1), it is unlikely that upper

(~T lethal temperatures will tur exceeded for any of the predominant (m) l 5.1-3

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towers.

Occurrence of downwash is determined from wind speed and 1

direction relative to the towers and from the effluent velocity

l of the cooling tower discharge.

Downwash criteria incorporated in the model are based upon laboratory and field studies of i

a

. cooling tower aerodynamics.

The model does not indicate the frequency of fog, but only of downwash that may lead to fog.

The new model computations for November 1978 through October 1979 indicate downwash conditions on 1422 hours0.0165 days <br />0.395 hours <br />0.00235 weeks <br />5.41071e-4 months <br />, or 16% of the time.

This frequency is significantly lower than the annual frequency of 25% given for ground-level fog in ER-CP Subsection 5.1.7.2.1.

The new results suggest that the fog frequency estimates in the ER-CP are highly conservative.

On the basis of the original model results, the most recent computations, and surveys of observed cooling tower fogging effects (Carson 1980, p. 300; Hanna 1978, p.

13), it is concluded that the fog estimates presented in ER-CP Table 5.1-13 and Figure 5.1-12 are overestimates.

Carson (1980, p. 300) and Hanna (1978, p.

13) state that ground fog from mechanical draft cooling towers does not extend beyond 200 to 500 meters from the towers.

The estimates in the ER-CP indicate rare fog occurrences out to 1000 i

meters, with most occurrences within 400 meters.

Cooling tower fog usually occurs when winds have a substantial component normal to the long axis of the mechanical draft cooling towers.

The maximum ground fog frequency at Marble Hill 1&2 will O

be east and northeast of the cooling towers, as shown in ER-CP Figure 5.1-12, in accord with-the tower orientation and prevailing wind directions.

j ER-CP Subsection 5.1.7.2.2 discusses the possibility of ground fog at great distances (50 km or farther) from the cooling towers.

There have been no confirmed observations of such fog, and it appears highly unlikely that cooling tower-induced fog

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will ever occur at such distances from Marble Hill 1&2.

Most authorities now believe that cooling towers do not cause ground fog in any circumstance other than downwash near mechanical draft towers (Carson 1980, p. 300; Hanna 1978, p. 13).

5.1.4.3 Effects of Drift An analysis of the magnitude and impacts of cooling tower drift was presented in ER-CP Subsection 5.1.7.3.

That analysis was r

l based upon an assumed drift rate of 0.02% of the combined circulating water and nonessential service water flow, or 2

approximately 120 gpm per unit.

Manufacturers' specifications for the circulating water cooling towers at Marble Hill 1&2 now indicate that the actual drift rate will be no greater than 0.008% of the revised water flow, or approximately 52 gpm per h

unit.

This value represents a decrease by a' factor of approximately 2.3 in the quantity of drift from that assumed for the ER-CP analysis. The ER-CP analysis was also 2

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SUPPLEMENT 2 5.1-9 JUNE 1983

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based on an expected total dissolved solids (TDS) concentration in the circulating water of 1500 mg/ liter; more recent 2

calculations indicate an average TDS concentration of 1635 mg/ liter.

ER-OL Tables 5.1-6 through 5.1-9 and Figure 5 1-2 update the data presented in ER-CP Tables 5.1-14 through 5.1-18 and Figure 5.1-13 to take into account the lower drift rate, the higher TDS concentration, and the 1978-1979 meteorological data.

All 2

modeling results from the ER-CP have been scaled in accordance with these changes in cooling tower parameters and meteorological frequencies.

It is assumed that the original drift droplet size distribution (see ER-CP Table 5.1-14) is applicable to the new drift rate.

The distribution was originally derived as typical for modern mechanical draft cooling towers (see response to Question 102, Supplement I to the ER-CP).

It is believed that the drift deposition data presented in ER-OL Tables 5.1-6 through 5.1-9 and Figure 5.1-2 are conservative, since the modeling assumed a 100% capacity factor and all drift emissions from a point source at the center of the cooling tower area.

5.1.4.4 Other Effects The Marble Hill 1&2 circulating water cooling towers will discharge large quantities of heat and moisture to the atmosphere.

It has been suggested that such inputs of energy and

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water could lead to detectable changes in local weather

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phenomena, such as increased cloudiness or precipitation.

Present knowledge of atmospheric processes is inadequate to define a firm limit of energy input above which significant

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meteorological responses may occur.

However, many sources of magnitude similar to or greater than the Marble Hill 1&2 cooling t

towers have operated for long periods without measureable effects.

As stated in NUREG-0097, the Final Environmental i

Statement for Marble Hill 1&2 (USNRC 1976, p.

5-5), "there is no evidence that...(cooling towers)... cause significant changes in local weather conditions."

The visible plumes from the Marble Hill 1&2 circulating water cooling towers will often resemble small natural clouds.

The modeling that has been performed indicates that in 19% of the visible plune occurrences the cooling tower plumes will rise into l

the base of an existing overcast cloud layer.

In a few cases, especially in summer, the plumes may evaporate, to reappear as small cumulus clouds at a higher altitude where natural clouds already exist.

Thus, the cooling towers will occasionally cause the formation of l

small clouds.

In cold weather they may cause the formation of a long, narrow layer of stratus-type clouds at altitudes far above the ground.

As discussed in Subsection 5.1.4.1.2 of this report, the frequency and size of these tower-induced clouds are too small to cause a significant increase in cloudiness or decrease I

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MH 1&2 ER-OL in sunlight.

Most long visible plumes and tower-induced clouds i

will occur in winter and during naturally cloudy weather, so that the impact is further minimized.

A number of studies have been performed to determine whether cooling towers can cause changes in precipitation.

Snowfall from cooling towers has been observed on a few occasions of very cold i

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5.1.4.5.1 Combinatien of Coolino Tower Plumes T:m plumes from the cooling towers at Marble Hill 1&2 and those at the Trimble County Generating Station will occasionally combine and mix.

This is,likely to occur only when winds are

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directed along the line joining the two plants, i.e.,

from the northwest or southeast.

For other wi,nd directions, the plumes will not mer.ge until they are far downwind of both sources, by which time both are.likely to have dispersed and evaporated.

Northwest and southeast winds had a combined frequency of occurrence of approximately.8% according to the 1978-1979 meteorological data from the Marble Hill site; this represents the maximum occurrence of direct plume combination for this, period.

Whether or not the, plumes actually mix when winds are from the northeast or southeast will depend on their relative t

altitudes.

Combination of the cooling tower' plumes from the two stations will have little effect except for an increase in the size and length of the combined plumes when both are visible.

The modeling analysis done for this report indicates that the Marble Hill circulating water cooling tower plumes will be visible over the Trimble County Generating Station approximately 50 hours5.787037e-4 days <br />0.0139 hours <br />8.267196e-5 weeks <br />1.9025e-5 months <br /> per year.

According to data <in thesTrimble County Draft Environmental Impact Statement (EIS) (USEPA 1978a, p. TA-129),

plumes from that station will be visible.over Marble Hill 1&2 O,

approximately~35 hours per. year.

Thus,~it is estimated that there will be approximately 85 hours9.837963e-4 days <br />0.0236 hours <br />1.405423e-4 weeks <br />3.23425e-5 months <br /> per year when merger er close approach of the two-sets of cooling tower plumes'results in a larger visible plume than would result from either_ station

, individually. lThese occasions of plume merger will usually be on cloudy or rainy days, and there will be no significant reduction in sunlight ilue to the, combination.

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L In other situations the visible part of>the cool'ing tower plumes from both power stat 1ons.will have disappeared before the plumes merge.

There will then be no observable effect of merger.

It was concluded in the Trimble County Final,EIS (USEPA 1978b,

p. 2-4) that the worst-case humidity increase due to the cooling towers at each station will be 3%)or less, and that the

" interaction potential of cooling' tower plumes is remote."

l.

-ThereWillbesometoverlappiIgoft'hedriftdepositionpatterns from the.two stations' cooling towers.

Both sets of towers will have their maximum solids deposition to the north and northeast, but the respective peak deposition areas will be on opposite l

sides of the Ohio River.

Based on the estimated deposition l' s(p' ttern for Marble Hill 1&2 from this report and that for Trimble a

!I County from its Draft EIS (USEPA 1978a,.'p. TA-133), the point of maximum combined drift deposition will'be approximately.2.5 km north of the Trimble County plant on the. Kentucky side of the L

Ohio River.

The annual average solids deposition rate there will j

b Lapproximately 50 kg/ hectare-year.

This is less than rates l2 V

SUPPLEMENT 2 5.1-12 JUNE 1983

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MH 1&2 ER-OL (O) shown to have adverse effects on vegetation (Mulchi and Armbruster 1974, p. 385).

The drift deposition rate at Marble Hill 1&2 due to operation of the Trimble County Generating Station is indicated to be 1.2 kg/ hectare-year (Figure 6.3.1-2A, Trimble County Draft EIS),

while that at Trimble County Station due to operation of Marble Hill will be approximately 10 kg/ hectare-year (see ER-OL Figure 2

5.1-2).

The Trimble County Station deposition rates are generally smaller than Marble Hill's because of the higher altitude of emission from Trimble County's natural draft cooling towers; drift particles are thus usually dispersed over a larger area before they are deposited on the ground.

The difference may be less than indicated in the above comparison, however, because of the different terrain elevations at the Marble Hill and Trimble County Station sites.

5.1.4.5.2 Combination of Coolino Tower and Stack Plumes Units 1 and 2 of the Trimble County Generating Station will emit approximately 2000 g/sec of sulfur dioxide (SO,) from the plant stacks.

These emissions will be at an altitude of 372 metcrs above mean sea level (MSL).

The Marble Hill 1&2 cooling towers have an emission altitude of 255 meters MSL.

Combination of the Marble Hill cooling tower plume and the Trimble County-stack effluent plume may occur during the 3% to 6%

r's) of the time that winds are from the northwest.

(When winds are I\\~'

from the southeast the stack plume will normally pass over the Marble Hill site.well above'the Marble Hill cooling tower plume.)

The combination of the cdoling tower and stack plumes will have no significant effect on plume chemistry or pollutant concentrations.

It is' believed that moisture accelerates the formation of sulfates in a power plant stack effluent plume,

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though the detailed chemistry of SO, transformation into sulfates 3

in the' atmosphere is not: fully understood.

There have been n

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} reports' of increased acidity where cooling tower plumes mix with stack plumes (Hanna 1978, p. 18).

However, the moisture that could be added to the Trimble County stack plume by theeMarble Hill cooling towers will not be significant in magnitude or frequency of occurrence compared to other sources.

Large quantities of water vapor are naturally presentsin the atmosphere much of the time, the Trimble County stack plume is expected to mix Gith its own cooling tower plume more frequently than with y

Marbls Hill's, and abundant moistere will already be present in s

the scrubbed stack plume at emission.

Interactions of the cooling tower plumes and stack plume from Marble Hill 1&2 and the Trimble County Generating Station were considered in the Trimble County Final EIS (USEPA 1978b, p. 2-4).

In that document, the U.S. Environmental Protection Agency stated that there are no standards or regulations concerning sulfates, and that any potentia:sradiological interactions would have (Vg "relatively minor" impactsi SUPPLEMENT 2 2

5.1-13 JUNE 1983 E.

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MH 1&2 ER-OL TABLE 5.1-6 EXPECTED RATE OF DEPOSITION OF DRIFT SOLIDS DISTANCE FROM CENTER OF COOLING TOWER AREA

. DIRECTION FROM (meters)

COOLING TOWERS 100 200 300 500 1,000 5,000 10,000 N

197 503 218 152 113 11 4

NNE 260 724 312 219 163 17 6

NE 210 539 239 178

-131 12 5

ENE 133 341 171 168 122 8

2 l

E 95 247 139 174 122 7

1 ESE 65 174 103 131 98 6

2 SE 49

-125 67 76 56 4

1 SSE 39 106 71 103 74 4

1 (D

(_s/

S 68 174 86 83 62 5

1 2

SSW 81 207 98 82 62 6

1 SW 105 269 133 126 93 6

1 WSW 109 278

-120 86 67 7

1 W-

'128 332 142 96 73 7

4 WNW 105 265 107 57 42 5

1 NW 121 307 119 55 40 6

2 NNW 105 270 114 78 46 5

2

-Note:

Deposition. values are in kg/ hectare-year; to convert to pounds / acre-month, multiply values by 0.074.

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TABLE 5.1-7 AREA AFFECTED BY VARIOUS MAGNITUDES OF DRIFT RESIDUE DEPOSITION

,w m RANGE OF SOLIDS DEPOSITION OTAL AREA (kg/ hectare-year) a (hectares)b

> 500 1,0 250 - 499 9.0 200 - 249 11.5 150 - 199 33.5 100 - 149 165 2

50 -

99 580 10 -

49 5000 5 - 9.9 7600 2 - 4. 9 25,000

<2

>30,000 j

"To convert deposition values to pounds / acre-month, multiply by 0.074.

To convert area to acres, multiply by 2.47.

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TABLE 5.1-8 GROUND-LEVEL CONCENTRATION OF DRIFT MINERALS IN AMBIENT AIR FOR MARBLE HILL 1 & 2 COOLING TOWERS DISTANCE MAXIMUM 24-HOgRAVERAGE ANNUAL AVERAGE 3

(meters)

(ug/m )

(ug/m )

100

<0.2

<0.05 200 1.9 0.19 300 15.5 1.8 500 34.5 4.2 2

1,000 16.6 2.0 2,000 7.1 0.7 5,000 1.0 0.1 10,000 0.14 0.019 i

d SUPPLEMENT 2 5.1-22 JUNE 1983 1

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O TABLE 3.1-9 4

COMPARISONS OF GROUND-LEVEL CONCENTRATIONS OF DRIFT MINERALS WITII AIR QUALITY STnNDARDS i

7' INDIANA AIR QUALITY STANDARDS COMPLIANCE AVERAGING MAXIMUM DRIFT MINERALS FOR SUSPENDED PARTICULATE WITII TIME CONCENTRATIONS (pg/m3)

PRIMARY (ug/m3)

SECONDARY (ug/m3)

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O KILOMETERS MARBLE HILL NUCLEAR GENERATING NOT2: ISOPLETH VALUES ARE esvinoyugurat a$ar". Spe',$,sc t, CENSE STAGE a2 a

IN HOURS / YEAR FIGURE 5.1-1 FREQUENCY OF VISIBLE COOLING TOWER PLUMES FOR THE PERIOD NOV,1978 TO OCTOBER 1979 SUPPLEMENT 2 JUNE 1983

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KILOMETERS STATION - UNITS 1 & 2 ENVIRONMENTAL REPORT - OPERATING LICENSE STAGE NOTE: ISOPLETH VALUES ARE FIGURE 5.1,c IN Kg/ HECTARE-YEAR ANNUAL AVERAGE DEPOSITION RATE OF DRIFT SOLIDS l

l SUFPLEMENT 2 JUNE 1983 l

MH 1&2 ER-OL

(T CHAPTER 6.0 - EFFLUENT AND ENVIRONMENTAL MEASUREMENTS N._j/

AND MONITORING PROGRAMS LIST OF FIGURES NUMBER TITLE 6.1-1 Locations of Aquatic Ecology Sampling Stations Near the Marble Hill Site for 1977-1981 6.1-2 Flight Line Map of Color Infrared Photography Coverage, May 1977 6.1-3 General Locations of Permanent Vegetation and Soil Sampling Plots 6.1-4 Nested Circular Plots for Vegetation Sampling (Numbers Represent Plot Radii) 6.1-5 Onsite Air and Soil Radioactivity Monitoring Sampling Locations 6.1-6 Onsite Direct Radiation Monitoring Sampling Locations 6.1-7 Onsite Groundwater and Surface Water and Downstream Fish, Invertebrate, and Shoreline Sediment Monitoring Sampling Locations 6.1-8 Offsite Air and Soil Radioactivity Monitoring 2

. Sampling Locations 6.1-9 Offsite Direct Radiation Monitoring Sampling Locations 6.1-10 Offsite Terrestrial Monitoring Sampling Locations

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6.1-11 Air, Water, Terrestrial, Fish, Invertebrate, and

(

A-Shoreline Sediment Control Sampling Locations t

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'ss SUPPLEMENT 2 6.0-iv JUNE 1983

MH 1&2 ER-OL

(~'

regulatory guide and the USNRC's Branch Technical Position on "An

\\

Acceptable Radiological Environmental Monitoring Program" (1979).

The PERMP is scheduled to begin in January 1983, approximately 3.5 years before fuel arrives at the site.

The objectives of the PERMP include the following:

a.

to identify probable critical pathways for radiation that should be monitored after the station begins operation; b.

to measure background radiation levels and their variations along anticipated critical pathways in the area surrounding the station; c.

to train personnel in the use of monitoring equipment and procedures; and d.

to evaluate monitoring equipment and procedures for use in the operational environmental radiological monitoring program.

The Environmental Report - Construction Permit Stage (ER-CP) for Marble Hill 1&2 stated that a detailed description of the PERMP would be presented in the ER-OL.

Details of the PERMP are

, presented in the following subsections.

4 l()

6.1.5.1 Samplinc Media, Locations, and Frequency ER-OL Table 6.1-8 summarizes the samples and analyses planned for l

the Marble Hill 1&2 PERMP.

The media to be sampled include the most important radiation dose pathways.

ER-OL Table 6.1-9 summarizes the code used to identify samples and the approximate direction and distance from the station of each of the sampling locations.

The locations of the onsite airborne radioactivity monitoring stations and onsite direct radiation monitoring stations are shown in ER-OL Figures 6.1-5 and 6.1-6.

Onsite groundwater, surface water, fish, invertebrate, and shoreline sediment monitoring locations are shown in ER-OL Figure 6.1-7.

The locations of offsite airborne radioactivity and direct 2

radiation monitoring stations are shown in ER-OL Figures 6.1-8 and 6.1-9.

Offsite milk, peach, and tobacco monitoring locations are shown in ER-OL Figure 6.1-10.

ER-OL Figure 6.1-11 shows the locations of all control radiation monitoring stations (air, water, and terrestrial) in this program.

i t

6.1.5.2 Data Analysis, Analytical Sensitivity, and Data Presentation l

The samples will be e.nalyzed by radiochemical methods that are similar to or better than those outlined in the U.S. Atomic Energy Commission Health and Safety Laboratory's " Procedures

(

SUPPLEMENT 2 6.1-39 JUNE 1983 l

l MH 1&2 ER-OL 4

O Manual" (USAEC 1972).

The analytical procedures will result in detection capabilities equal to or better than those outlined in the USNRC's Branch Technical Position (1979, Table 2).

These detection capabilities are shown in ER-OL Table 6.1-10.

ER-OL, O

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TABLE 6.1-9 SAMPLING LOCATIONS FOR TIIE RADIOLOGICAL MONITORING PROGRAM SAMPL)

DISTANC[

b EXPOSURE PATHW AYS CODE' DIRECTION (miles)

REMARKS Air Monitoring i-

m. Airborne 020301/

NE 0.2 Northwest corner of cemetery east of Unit I cooling tower.

Particulates ?

030301 Airborne 021202/

WSW l.3 Meteorological station 1 - near Elizabeth Church.

lodine 031202 020001/

SSE 0.5 Behind (east) guardmuse at Gate 1.

030001 020101/

N 0.7 located behind guardmune at north gate to site (near Little 030101 Saluda Creek).

020500/

E 7.3 Bedford, Kentucky substation. 0.7 mile east of KY 421 on Z

030500 Cuts V Lane.

Z

[

021206/

WSW 5.7 New Washington substation pote No. 737-996. 1he substation p

031206 is acrosa the street from Disciples of Christ Church.

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-020111/

N 11.0 North Madison (PSI) service center on Clifty Drive.

M A

030111

'J8 t

1 021029/

SSW 29.0 LG&E Power Station at 3rd Street and River Road, touisville.

2 g

031029 6

Direct Radiation 010101 N

0.7 Behind guard shack at the north gate to the Marble flill site Monitorirg (TLD)

(attached to utility pole).

010201 NME 0.8 Floodplain; attached to cement based pole located between the tw9 cement block well buildings north of the pumping station.

010300 NE 0.2 Northwest corner of cemetery, east of cooling tower No.1.

TLD attached to chain link fence.

j 0I0301 NE 0.4 Floo@lains on meteorological tower No. 2 fence.

ZM trj m 010401 ENE 0.4 located on secord cement-based pole north of the pumping i

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station (first cement-based pole east of the floodplain road).

-l PM i

OZ 010501 E

0.4 South of pumping station on utility pole immediately west of small yellow building (first pole south of diseturge structure).

]

0 0601 ESE 0.6 located on a maple tree at the east edge of a clearing approx-y Imately 0.4 mile south of pumping station.

See footnotes on last page of table.

e

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TABLE 6.1-9 (CONT'D) 1 AMPLE b DISTANCE EXPOSURE PATHWAYS CODE DIRECTION (miles)

REMARKS Direct Radiation 010701 SE 0.6 Located on fifth fence post east of Marble Hill Road along Monitoring (TLD) the fence bordering the site east of gate 1.

(Cont'd) 010001 SSE 0.5 Attached to fence post behind (east) guardhouse at gate 1.

010901 5

0.5 Attached to thirtieth fence post west of gate 1.

011001 SSW 0.5 Located on fence post west of Marble littl Inn along Marble Hill Road (north side of road).

011101 SW 0.6 Attached to second pole east of the guard shnek at the gate 3 entrance to the site.

011202 WSW 1.3 Meteorological toner near Elizabeth Church.

011301 W

0.6 Located on the first pole west of the small drainage ditch running under the fence north of the Ceco Lord Warehouses m

(southwest of materials building).

p sn F-*

011401 WNW 0.6 Attached to the chaintink fence directly in front of the taree M

i wooden utility pole that is northwest of the Materials Dullding in the Newberg Leydown area.

2 y

h 011501 NW 0.5 Located northwest of cooling tower 0.

The TLD is attached to the small tulip tree on the west edge of the access road tg (approximately 300 feet from the gate behind the spoil area).

O!!601 NNW 0.8 Located on the chain link fence bordering the Newburg area northwest of materials building.

010105 N

4.6 Located on PSI pole no. 714-971, which is located at the 'T*

formed where 400 West meets 500 South.

010205 NNE 4.3 Located on South Central Bell pole no. 53 4.0 miles south on KY 625.

Q fn 010209 NNE 8.4 Attached to a pole behind (east) the Milton Substation, which CC is located at the junction of KY 625 and KY 1255.

Z 'O M 'O 010304 NE 3.4 Located on South Central Dell pede no. 23, which is approxi-mately 7.0 miles south of KY 411 on KY 625.

g 010404 ENE 3.7 Attached to pole no. 4*4 This pole is located on KY 625 wZ near Mount Pleasant.

d N

See footnotes on last page of table.

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1 TABLE 6.1-9 (CONT'D)

SAMPLk b DtfrANCE EXPOCURE PATHWAYS CODE DIRECTION (miles)

REMARKS Direct Radiation 010505 E

4.6 Attached to pole no. 38. This is the third pole past the black-Monitoring (TLD) top road on the south side of KY 625 east of Poplar Ri4e (Cont'd)

Church.

010508 E

7.3 Located at Bedford Substation 0.7 mile east of KY 421 on Cuts V Lane.

010605 ESE 4.2 Attached to pole no. 32, which is located approximately 2.5 miles west of KY 42 on KY 754.

0107C5 SE

~ 4.2 Attached to pole no. 23189, which is located approximately 3.6 miles west of KY 42 on the road immediately south of the large Bray Orchards building.

010605 SSE 4.4 TLD is located on a utility pole containing a large green box 3

and platform. This pole is located on the southwest side of Z

Bethlehem along Bethlehem Road.

H H

010909 S

8.6 Attached to pole no. 206 located along a gravel lane just west I

of the Oldham Co. Water District buildirg or, the east edge of

[

Westport, Ky.

mA 010905 S

4.4 Attached to PSI pole no. 790-340 located approximately 0.5 2

s mile west of Bethlehem on Bethlehem Road.

O U

011005 SSW 4.6 Located on a pole along Flint Ri%e Road 2.6 miles south of Bethel Church.

011105 SW 4.4 Attached to PSI pole no. 720-134 at the Otto Substation.

Otto Substation is located 0.5 mile south of bethlehem Road on Doyer Road, t'

011205 WSW 4.2 Attaebed to the seventh pole east of Taflinger Road on the north side of Carroll Road (Taflinger Road is 1 mile east of New Washington on Bethlehem Road).

C-4 f/3 CC 011206 WSW 5.7 Attached to pole no. 717-998 immediately west of the New

{

Washington Substation.

011305 W

4.3 Attached to pole no. 6I located south, just off Marble Hill p

e3 Road, along the 1st road east of Rt. 62.

CD M WZ 011405 WNW 4.3 Attached to a pylar tree approximately 80 feet east of Rt. 62 8

along the south side of the railroad tracks leading to Marble 1011.

g See footnotes on last page of table.

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TABLE 6.1-9 (CONT'D)

SAM PI,5 blSTANCE b

EXP9SUME PATHWAYS COD E" DIRECTION (miles)

'REMAaMS Direct Radiation 011505 NW 4.7 located on the 12th pole west of Saluda on the south side -

Monitoring (TLD) of Road 600 South.

(ContM) 0I1605 NNW 4.8 located on pole no. 791-197 which is along Road 500 south-east of Paynesville Road.

010111 N

11.0 located at North Medison Service Station on Clifty Drive.

011029 SSW 29.0 located at LG&E Generating Station at 3rd Street ard River Road, louisville.

01I422 WNW 22.0 Attached to pole no. 729-979 located in the northwest corner of the Ist Assembly Church parking lot, Austin, Indiana.

Z Drinking Water 091025 SSW 25.0 Surface water composite sample from louisville Water Com-m m

Monitoring pany's 11. E. Payne Water Treatment Plant.

H P

Surface Water 110101 ENE 0.5 located 0.5 mile upstream of Intake structure.

O M

I Monitoring y

110501

.E 0.5 Located 0.5 mile downstream of dischargo structure.

g 2

m Groundwater 10020I NNE 0.6 Marble flill Station floodplain potable wells, g

Monitoring OV 1

Terrestrial Monitoring

a. Milk 061607 NNW 6.1 Dairy located along Garrel Road approximately 2.5 miles north-east of Saluda.

060505 E

4.9 Dairy located approximately 10.0 miles south of KY 421 on KY 625.

j

061003, SSW 2.4 Dairy located 4.7 miles east of Rt. 62 on flethlehem Road.

06I186 SW 16.0 Dairy located 3.0 miles southwest of Charlestown on Rt. 403.

qm CC l

Zm b.

Fruits and 071502 NW l.5 Reed's peach orchard.

Mm Vegetables M

071229 WSW 29.0 Huber Orchards, Sierlight, Indiana.

HM

• U 080104 N

3.9 lbrner residence. located 0.5 mile south of Road 500 S on River Road.

(

M See footnotes on last page of table.

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TABLE 6.1-9 (CONT'D)

SAMPL)

DISTANCE b

EXPOSURE PATHWAYS CODE' DIR ECTION (miles)

REMARKS Terrestrial Monitoring (Cont'd)

b. Fruits and 001112 SW

!!.2 Zollman residence, located 5.2 miles north of Monroe Street Vegetables on Ttumet Mill Road.

(ContM) 050105 N

4.5 Hall residence. Located on Road 500 S. 2.6 miles from the junction I mile north of Saluda.

051116 SW 16.0 Kines residence. located on Monroe $treet, Charlestown, Indiana.

e. Soil 040101 N

0.7 Same location as 020101.

040301 NE 0.2 Same location as 020301.

3 i

Z m

040801 SSE 0.5 Same location as 020801.

H H

041204 WSW l.3 Same location as 021202.

m I

N 040508 E

7.3 Same location as 020508.

041206 WSW 5.7 Same location as 021206.

2 fo 040111 N

11.0 Same location as 020111.

p i

041029 SSW 29.0 Same lention as 021029.

Fish, Invertebrates',

and Shoreline Sediment Monitoring

a. Fish 120105 N

5.0 located 5.0 miles upstream from intake structure.

120501 E

0.5 located 0.5 mile south of pumping station.

b. Shoreline j

qg Sediment 130105 N

5.0 Same Ina9 tion as 120105.

I CC Zm 130501 E

0.5 Same loestion as 120501.

MT M

e. Invertebrates 140105 N

5.0 Same location as 120105.

HM

[

140501 E

0.5 Same location as 120501.

wZ 8

M See footnotes on last page of table.

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MH 1&2 ER-OL TABLE 6.1-9 (CONT'D)

.C aSample Code Designations:

SAMPLE TYPE SECTOR DISTANCE 01 = TLD 01 = N Broken down into 1 mile rings.

02 = Air Particulate 02 = NNE Consistent with NUREG-0654.

03 = Airborne Iodine 03 = NE 04 = Soil 04 = ENE O-1=

1 05 = Cabbage 05 = E 1-2=

2 06 = Milk 06 = ESE 2-3=

3 07 = Fruit 07 = SE 3-4=

4 08 = Tobacco 08 = SSE 4-5=

5 09 = Drinkirg Water 09 = S 10 - 11 = 11 10 = Groundwater 10 = SSW 11 = Surface Water 11 = SW 12 = Fish 12 = WSW 2

(/

13 = Shoreline Sediments 13 = W 14 = Invertebrates 14 = WNW 15 = N W 16 = NNW ID Numbers are written in following order:

Sample Type Sector Distance Examples:

051103

Cabbage, SW Sector 3 mile ring 011501 TLD NW Sector 1 mile ring bDirection and distance are measured from the vent stack.

clnvertebrates will be sampled at each of the fish and sediment locations if they are available.

s 3UPPLEMENT 2 6.1-56c JUNE 1983

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soo' imo-FIGURE 6*1-5 N

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E SUPPLEMENT f JUNE 1983 e

9SO(,McNW-o 9

MH 1&2 ER-OL QUESTION 290.6 Identify locations and acreages by crop type for agricultural lands within the salt drift isopleths of 50 and 100 kg/ hectare / year depicted in Figure 5.1-2 of the ER-OL.

RESPONSE

Maps depicting locations and acreages by crop type within the predicted 50 and 100 kg/ hectare / year drift deposition isopleths were provided to the U.S. Nuclear Regulatory Commission on June 24, 1983.

The 50 and 100 kg/ hectare / year areas were derived from the revised drift deposition analysis described in the response to Question 290.7.

i SUPPLEMENT 2 Q290.6-1 JUNE 1983

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MH 1&2 ER-OL

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QUESTION 290.7 Why are the annual average drift deposition values shown in ER-OL Figure 5.1-2' higher than maximum values presented in the applicant's presentation in the FES-CP, page 5-8, given a reduction in drif t rate from :0.02% of the flow to 0.008% of flow?

RESPONSE

The drift deposition values cited in the FES-CP were extracted from the applicant's drift deposition analysis presented in Subsection 5.1.7.3.1 of the Marble Hill Environmental Report -

Construction Permit Stage (ER-CP).

The ER-CP and FES-CP both contain deposition values in English units (lb/ acre-month).

The FES-CP also contains the equivalent values in metric units (kg/ hectare-month).

A comparison of the metric values and English values on page 5-8 of the FES-CP indicates that the metric values should actually be approximately 6 times higher in order to correctly correspond to the English values.

If the deposition values in lb/ acre-month from the FES-CP are converted to kg/ hectare-year and compared with the values shown in ER-OL Figure 5.1-2, the FES-CP values are found to be higher than the ER-OL values by a factor consistent with the change in the drift rate.

This comparison is shown in Figure Q290.7-1.

The change

('~xy,)

in the deposition is not uniform because different periods of meteorological data were used in the FES-CP and ER-OL analyses.

In responding to this question, it was discovered that the drift deposition analysis originally presented in the ER-OL was based on a total dissolved solids (TDS) concentration in the circulating water of 1500 mg/1.

Although this concentration was the correct value at the Construction Permit stage, the TDS concentration in the circulating water is now expected to average 1635 mg/l (see ER-OL Tables 3. 6-2 and 5. 3-1).

For consistency and conservatism, the drift deposition analysis has been revised using the higher TDS concentration.

The revised values have been incorporated in Supplement 2 to ER-OL Subsection 5.1.4, which was provided to the U.S. Nuclear Regulatory Commission on June 24, 1983.

As expected, the revised values are still generally lower than those presented at the Construction Permit stage and entail no significant change in environmental impacts from those originally presented in the ER-OL.

I n(,,)'

SUPPLEMENT 2 0290.7-1 JUNE 1983

r~T MH 1&2 ER-OL QUESTION 290.8 Provide aerial color infrared photographs of the areas expected to receive maximum cooling tower salt drift.

RESPONSE

Aerial color infrared photographs covering the area within the predicted 50 and 100 kg/ hectare / year drift deposition isopleths were provided to the U.S. Nuclear Regulatory Commission on June 24, 1983.

The photographs were taken in June 1983 to allow for complete foliage development.

o SUPPLEMENT 2 0290.8-1 JUNE 1983

MH 1&2 ER-OL

()

SUPPLEMENT 2 VOLUNTARY REVISIONS Supplement 2 consists of voluntary revisions to the

~

following. portions of the ER-OL:

Subsection 2.6.2.5 Elizabeth to Gwynneville Transmission Line Corridor (Archaeology)

Subsection 5.1.4 Atmospheric Effects of Heat Dissipation Facilities Table 5.1-6 Expected Rate of Deposition of Drift Solids Table 5.1-7 Area Affected by Various Magnitudes of Drift Residue Deposition Table 5.1-8 Ground-Level Concentration of r

Drift Minerals in Ambient Air for Marble Hill 1&2 Cooling Towers Table 5.1-9 Comparisons of Ground-Level f"N Concentrations of Drift Minerals

(,)

with Air Quality Standards Figure 5.1-1 Frequency of Visible Cooling Tower Plumes for the Period November 1978 to October 1979 Figure 5.1-2 Annual Average Deposition Rate of Drift Solids Subsection 6.1.5 Radiological Monitoring Table 6.1-9 Sampling Locations for the Radiological Monitoring Program l

Figure 6.1-5 Onsite Air and Soil Radioactivity i

Monitoring Sampling Locations Figure 6.1-6 Onsite Direct Radiation Monitoring Sampling Locations Figure 6.1-7 Onsite Groundwater and Surface Water and Downstream Fish, Invertebrate, l

and Shoreline Sediment Monitoring Sampling Locations

{h N

s SUPPLEMENT 2 JUNE 1983 i

S2-1 l

MH 1&2 ER-OL A( )

SUPPLEMENT 2 VOLUNTARY REVISIONS (Cont'd)

Figure 6.1-8 Offsite Air and Soil Radioactivity Monitoring Sampling Locations rigurc 6.1-9 Offsite Direct Radiation Monitoring Sampling Locations Figure 6.1-10 Offsite Terrestrial Monitoring Sampling Locations Figure 6.1-11 Air, Water, Terrestrial, Fish, Invertebrate, and Shoreline Sediment Control Sampling Locations Q290.6-1 Request for Crop Type Information Q290.7-1 Cooling Tower Drift Deposition Values Q290.8-1 Request for Color Infrared Photograph These revisions, along with related changes to the tables of O

contents, have been incorporated into the report as changeout pages or entirely new pages.

I i

i i

V' SUPPLEMENT 2 JUNE 1983 S2-2 i

-