Text

Suppl 4 to Environ Rept - OL Stage
	ML20079N035
Person / Time
Site:	River Bend
Issue date:	02/28/1983
From:	; GULF STATES UTILITIES CO.
To:	;
Shared Package
ML20079N014	List: ML20079N035; RBG-14-461, Forwards Suppl 4 to Environ Rept - OL Stage & Amend 7 to FSAR (Filed in PDR Category K).Affidavit of Svc Encl;
References
	ENVR-830228, NUDOCS 8303030430
	Download: ML20079N035 (190)
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o RIVER BEND STATION ENVIRONMENTAL REPORT OPERATING LICENSE o

STAGE SUPPLEMENT 4

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s Acknowledgement of Receip't of Supplement to Environmental Report-Operating License Stage.

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River Bend Station

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r Please sign, date, and return this sheet to:

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L. Dietrich

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N Lead Licensing Engineer Stone & Webster Engineering Corporation 1

3 Executive Campus P.O. Box 5200 o;

Cherry Hill, N.J.

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i Receipt of Supplement 4

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Operating License Stage is acknowledged.

's, My copy has been brought to current status and superseded pages have been removed and destroyed, as applicable.

Change my addre'ss as follows:

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[] Please reassign this manual to:

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Date Signature Print name of person to whom ER-OLS is assigned Set number f

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SUPPLEMENT 4 INSERTION INSTRUCTIONS RIVER BEND STATION ENVIRONMENTAL REPORT - OPERATING LICENSE STAGE

'The following instructions are for the insertion of Supplement 4 into the RBS ER-OLS.

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Chapter Section Title Volume 1

INTRODUCTION 1

1.1 The Proposed Project 1

1.2 Status of Reviews and Approvals 1

1.3 Substantive Informational Changes from Construction Permit Stage 1

2 ENVIRONMENTAL DESCRIPTIONS 1

2.1 Description of the Station Location

-1 2.2 Land 1

2.3 Water 1

2.4 Ecology 1

2.5 Socioeconomics 2

2.6 Geology 2

2.7 Meteorology 2

2.8 Ambient Air Quality 2

2.9 Ambient Noise 2

2.10 Related Federal Project Activities 2

APPENDICES 2A, 2B, and 2C 3

3 PLANT DESCRIPTION 3

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3.1 External Appearance and Plant Layout 3

3.2 Reactor Steam - Electric System 3

3.3 Plant Water Use 3

3.4 Cooling System 3

3.5 Radioactive Waste Management Systems 3

3.6 Nonradioactive Waste Systems 3

3.7 Power Transmission Systems 3

3.8 Transportation of Radioactive Materials 3

4 ENVIRONMENTAL IMPACTS OF CONSTRUCTION 3

4.1 Land Use Impacts 3

4.2 Hydrological Alterations and Water Use Impacts 3

4.3 Ecological Impacts 3

4.4 Socioeconomic Impacts 3

4.5 Radiation Exposure to Construction Workers 3

4.6 Measures and Controls to Limit Adverse Impacts During Construction 3

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Supplement 4 i

February 1983

RBS ER-OLS TABLE OF CONTENTS Chapter Section Title Volume 5

ENVIRONMENTAL IMPACTS OF STATION 3

OPERATION 3

5.1 Land Use Impacts 3

5.2 Hydrological Alterations, Plant Water Supply, and Water Use Impacts 3

5.3 Cooling System Impacts 3

5.4 Radiological Impacts of Normal Operation 4

5.5 Nonradioactive Waste System Impacts 4

5.6 Transmission System Impacts 4

5.7 Uranium Fuel Cycle Impacts 4

5.8 Socioeconomic Impacts 4

5.9 Decommissioning 4

5.10 Measures and Controls to Limit Adverse Impacts During Operation 4

APPENDIX SA 4

5 ENVIRONMENTAL MEASUREMENTS AND MONITORING PROGRAMS 4

6.1 Thermal 4

6.2 Radiological 4

6.3 Hydrological 4

6.4 Meteorological 4

6.5 Biological 4

6.6 Chemical 4

6.7 Other Monitoring Programs 4

7 ENVIRONMENTAL IMPACTS OF POSTULATED ACCIDENTS INVOLVING RADIOACTIVE MATERIALS 4

7.1 Plant Accidents 4

7.2 Transportation Accidents 4

8 THE NEED FOR THE PLANT 4

4 9

ALTERNATIVES TO THE PROJECT 4

Supplement 4 ii February 1983

RBS ER-OLS CHAPTER 1 INTRODUCTION 1

This Environmental Report - Operating License Stage (ER-OLS) is submitted in fulfillment of the requirements of 10CFRS1 and in support of the application for a license to operate the River Bend Station - Units 1 and 2 nuclear power plant.

This ER-OLS is based on the content and format guidelines of Regulatory Guide 4.2, Revision 2, and the Environmental Standard Review Plans (NUREG-0555) issued by the Nuclear Regulatory Commission (NRC) in May 1979.

Information from the Construction Permit Stage Environmental Report is restated here for completeness with additional discussion provided, as needed.

Gulf States Utilities Company (GSU) originally submitted an Environmental Report-Construction Permit State

( ER-CPS) to the commission in mid-1973 in support of the River Bend Statica Construction Permit (CP) Application.

Subsequently 1

in Septeeber 1973 the Construction Permit Application was docketed and docket numbers 50-458 and 50-459 were assigned L

to the project.

In September 1975 site work was authorized under the issuance of a Limited Work Authorization (LWA).

Then in March 1977 ccustruction Permit Numbers CPPR 145 and

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CPPR 146 were grant (d for Units 1 and 2, respectively.

In 1980 the NRC granted GSU a construction permit amendment allowing Cajun 21ectric Power Cooperative (CEPCO) to become a

30 percent co-owner in River Bend Station - Unit 1.

Unit 2 is currently solely owned by GSU.

Prior to granting this amendment, the Rural Electrification Administration (REA),

according to its regulations, issued a

Final 4

Supplemental Environmental Impact Statement (FSEIS) ( 1 ) which adopted the Final Environmental Statement (FES) issued by the Atomic Energy Commission (currently the NRC) in September 1974.

In fulfillment of the regulations as stated in 10CFR51, GSU in behalf of itself and for CEPCO has prepared this Environmental Report-Operating License Stage (ER-OLS).

GSU is act?ing as project manager and is responsible for the

design, construction, and operation of River Bend Station (RBS).

1.1 THE PROPOSED PROJECT River Bend Station is located in West Feliciana Parish, Louisiana, 3 km (2 mi) east of the Mississippi River and 1.1-1 l,

1

RBS ER-OLS approximately 38 km (24 mi) north-northwest of Baton Rouge, Louisiana.

The reactors for River Bend Station are warranted for a core thermal power of 2,894 MWt.

Reactor power output at rated plant operating conditions is 2,887 MWt, which corresponds to a net station electrical output of approximately 936 MWe.

Each reactor has a design core thermal power of 3,015 MWt (105 percent of reactor warranty steam flow exiting the vessel) for evaluating the design of components, systems, and structures in support of reactor operation.

Dissipation of waste heat will be accomplished through a closed-cycle system, utilizing multi-cell mechanical-draft cooling towers.

Makeup water will be withdrawn from the Mississippi River through submerged intake screens and suction pipelines to a

dry pit pumphouse structure.

Blowdown from the main cooling water system is discharged to the river through a buried pipe located downstream of the intake structure.

The

, transmission system is composed of three r:utes, 80 percent of which are located adjacent to or parallel with existing rights-of-way.

The length of the routes combined totals a distance of 129.2 km (80.2 mi).

The scheduled completion date of construction and fuel loading for Unit 1 is April 1985, with an anticipated commercial operation date of December 1985.

Unit 2 is currently not scheduled and only those facilities commen to Unit 1 have been constructed; however, the environmental impacts presented in this report are conservatively based on two-unit operation.

Supplement 4 1.1-2 February 1983 0

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RBS ER-OLS T ABLE 1. 2-1 FEDERAL, STATE, AND LOCAL AUTHOaIZATIONS Authorization Date of Agency Required Authority Pe guest Status U.S. GOVERNMENT Army Corps or Dredging and main-Section 10 of the 9/5/74 Pormit No. LMHOD-SP Engineers tenance of a slip, Rivers and Harbors (Mississippi) 870 construction and Act of 1899 issued 10/15/76.

maintenance of (33 U.S.C 40 3) ;

Extension granted 7/7/78.

intake and dis-FWPCA Section 404 Additional extension charge structures, (P.L.92-500, 86 granted 1/16/80.

and a barge dock Stat 816)

Construction of Section 10 of the 7/18/77 Permit No. LMNOD-SP transmission lines Rivers and Harbors (Mississippi River) 990 across Mississippi Act of 1899 Issued 10/25/77.

River Construction of Section 10 of the 8/2/79 Permit No. LMNOD-SP transmission lines Rivers and Harbors (Thompson Creek) 6 across Thompson Act of 1899 Issued 2/13/80.

(Route 2) l4 Creek Construction of Section 10 of the 10/27/81 Permit No. LMNOD-SP transmission lines Rivers and Harbors (Thompson Creek) 7 across Thompson Act of 1899 Issued 1/15/82.

creek (Poute 3)

Construction of Section 10 of the 8/25/81 Permit No. LMNOD transmission line Rivers and Harbors (Comite River) 6 across Comite Act of 1899 Issued 4/8/82.

River Nuclear Limited WorA Atomic Energy Act 6/25/75 Issued 9/5/75.

Regulatory Authorization of 1954 as amended, Commis sion and 10CFR50 Construction Atomic Energy Act 9/24/73 Construction Permit Permit of 1954 as amended, No. CPPR 145 and and 10CFR50 CPPR 146 issued 3/25/77.

Extension granted 12/27/82.

l Supplement 4 1 of a February 1983

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RBS ER-OLS I

TABLE 1.2-1 (Cont)

Authorization Date of j

Agency Required Authority Regnest Status 2

Construction Per-Atomic Energy Act 13/26/19 Granted 10/3/80.

mit Amendment and of 1954 as amended, Unit 1 Joint and 10CFR50 Cwnership Operating Atomic Energy Act 4/81 Application submitted License of 195g as amended, and under review.

and 10CFR50 Special Nuclear Atomic Enetgy Act Six montha Future Materials of 1954 as amended, prior t o License and 10CFR70 delAv3ry of j

in-core detectors.

By-Product Nuclear 1DCFR30 12/9/92 Application Submitted Material License and under review.

Federal Aviation River crossing 14CFR77 7/14/77 Approval granted Administration by transmission 7/28/77.

towers Environmental NPDES permit for FWPCA Section 402 S/21/75 Permit No. LA0047112 Protection construction (P.L.92-500) issued 12/18/75.

Agency Request for addi-tional discharge granted 4/29/76.

4 NPDES permit for FWPCA Section 402 9/5/74 Permit No. LA0042731 operation (P.L.92-500) issued 8/4/78.

J Supercedes Permit No.

1 LA0047112.

Training Center FWPCA Section 402 6/30/82 Draft Permit No. LAOO63886 l

Sanitary Waste (P.L.92-500) issued 1/7/83.

Disc harge 4

i Supplement 4 2 of 4 February 1983

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O RBS ER-OLS TABLE 1.2-1 (Cont)

Authorization Date of Agency Required Authority pequest Status STATE OF TEXAS Public Utility Certificate of Article 1446C of 1 G/14 /77 Approval granted Commission Public Conve-Vernons Annotated 3/21/78 under nience and Neces-Civil Statutes, Public Docket Number 857.

sity to construct, Utility Regulatory own, and operate Act Units 1 and 2 and transmission lines STATE OF LOUISIANA Stream Control Waste water dis-La. Revised 6/25/74 Approval granted Commission (LSCC) charge permit Statutes of 1950, 10/25/74. Request (Now water Pol-Title 56, for additional lution Control Section 1439(5) discharge granted Division of 11/21/78.

Of fice of Envi-ronmental 1/5/83 Request for additional Af f airs) outfalls submitted.

Training Center La. Revised 6/30/02 Permit No. WP0302 Sanitary Waste Statutes of 1950, effective 11/23/82.

Disc harge Title 56, Section 1439(5)

Certification for FWPCA Section 401 12/2/74 LSCC refused to EFA Permit (P.L.92-500) act 12/13/74.

(Section 401 This constitutes Certification) waiver of Section 401 requirements.

Department of Industrial La. Sanitary 10/4/79 Approval granted Natural landfill Code, Chapter X, 11/19/79.

Resources para. 10.52 Hazardous waste Act 449, 1979 1/21/80 Granted 1/22/80.

generator identi-Legislature, fication number and Hazardous Waste Management Program Rules and Regulations l

Supplement 4 3 of 4 February 1983 i..

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O RBS ER-OLS TABLE 1.2-1 (cont)

Authorization Date of Agency Re quired Authority geguest Status Air Control Burning of con-LACC regulations 10/4/79 Approval granted Commission (LACC) struction wastes amended through 11/19/79.

j (Now the Air 2/20/78 Pollution control Division of the Diesel emissions LACC regulations Future Future Of fice of Envi-amended through ronmental 2/20/78 Af f airs) a Health and Wells 5/ 14/ 16 Approval granted l

Human Resources registration 10/21/76.

Administration i

Hignway Construction of La. Stat. Rev.

11/26/74 Permit No. 96025 i

Department road between Title 48, Sec. 301 issued 2/24/75.

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Rte. 965 and and 344 Permit extended US Rte. 61 6/17/75.

(North Access Road) i Wildlif e and Administrative La. Stat. Rev.

Future Future l

Fisneries scientific col-Title 56, j

Commission lection permit for Sec. 104H and surveys or moni-318, (1950) toring WEST FELICI ANA PARISH Police Jury Road modifications Approval granted i

11/5/74.

Pipelines and elec-2/12/80 Approval granted trical conduit 2/27/80.

crossing under Folice Jury Road l.

i Supplement 4 4 of 4 February 1983

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RBS ER-OLS i

CHAPTER 2 TABLE OF CONTENTS (Cont)

Section Title Page l

2.8.5 EPA Attainment /Nonattainment and Class I Area Designations 2.8-3 2.8.6 Conclusions 2.8-3 2.9 AMBIENT NOISE 2.9-1 2.10 RELATED FEDERAL PROJECT ACTIVITIES 2.10-1 j

APPENDIX 2A HYDROGP.APHIC STUDIES REPORT APPENDIX 2B ALLIGATOR BAYOU FLOCD STUDY PRESENT BAYOU HYDROLOGY

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APEE14 DIX 2C POPULATION DISTRII:UTION i

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Supplement 4 2-v February 1983 l

RBS ER-OLS CHAPTER 2 LIST OF TABLES Table Number Title 2.2-1 LAND USES OF PARISHES WITHIN 10 KM OF THE RIVER BEND STATION IN 1972 2.2-1 LAND USES OF PARISHES WITHIN 10 KM OF THE RIVER BEND STATION IN 1972 2.2-2 PIPELINES IN THE VICINITY OF RIVER BEND STATION 2.2-3 INDUSTRIAL AND MANUFACTURING FIRMS AND EXTRACTIVE OPERATIONS WITH 10 KM 2.2-4 MAJOR RECREATION AREAS WITH 10 KM 2.2-5 AGRICULTURAL PRODUCTION OF CROPS AND ANIMALS FOR FOUR PARISHES WI1HIN 10 KM FOR 1978 2.2-6 LAND USE DATA Oh ROUTE I 2.2-7 LAND USE DATA ON ROUTE II 2.2-8 LAND USE DATA ON ROUTE III 2.2-9 LAND TYPES CROSSED BY TRANSMISSION CORRIDORS 2.2-10 LAND USE CATEGORIES FOR LOUISIANA PARISHES WITHIN 80 KM OF RIVER BEND STATION IN 1972 2.2-11 MAJOR LAND USE CATEGORIES FOR MISSISSIPPI COUNTIES WITHIN 80 KM OF RIVER BEND STATION IN 1979 2.2-12 FOUR PRINCIPAL AGRICULTURAL PRODUCTS IN LOUISIANA: ACREAGE, YIELD, AND PRODUCTION IN 1978 FOR THE THREE FARMING AREAS IN LOUISIANA WITHIN 80 KM OF RIVER BEND STATION 2.2-12a TOTAL KG CROPS (MAJOR) PER SECTOR, 1978 2.2-12b TOTAL CATTLE AND CALF PRODUCTION 2

(NO. OF HEAD) PER SECTOR, 1978 Supplement 2 2-vi March 1982

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o /y~+3+%y t b,J %g ,w.., SITE MAP ) tw Cg. ps, w p ), f.w 't' W f'\\ s ) ~v, U \\ ye q! RIVER BEND STATION A g. g. [ (S ENVIRONMENTAL REPORT - OLS c-9 SUPPLEMENT 4 FEBRUARY 1983

BBS ER-CLS 2 O) 2.2 LAND \\v 2.2.1 The Site and Vicinity 2.2.1.1 The Site The parcel of property on which River Eend Station is located contains a total of 1,352 ha (3,342 acres), of which nearly all but the land located in transportation rights-of-way is cwned by GSU. The major land use on the property is the electric generating and transmission facilities required by the two-unit station. A description of station facilities and their land requirements is included in Section 4.3.1. Property boundaries and station layout are presented in Fig. 2.1-3. There are several other land uses on or adjacent to the property that will continue during station operation. As indicated in Fig. 2.1-3, the property is bounded on the northeast by US Highway 61, the major road between St. Francisville and Baton Rouge. Other roads that cross the property include State Poad 965 and Police Jury Foad which is its extension; River Road (a minimum maintenance Police Jury Foad) and River Access Road connecting Fiver Road tc Police Jury Road (with a spur to the Kildlife Management Lake) ; and North Access

Road, constructed between US g

Highway 61 and State Road 965. Of these only River Access \\ Road and North Access Road belong to Gulf States Utilities. River Road and Police Jury Bcad belong to West Feliciana Parish; others are state or federally owned. None of these roads will be closed to public use because of normal station operation. Under emergency conditions, access tc the plant by way of State Road 965 and tc North Access Road will te limited. A 3.6-km ( 2. 3-m i) section of the Illinois Central Gulf Railway crosses the property. The right-of-way is in railway company ownership. This section of the Slaughter tc Woodville line carries only freight and has daily service on demand. Traffic averages one train daily 5 days a week on the

line, which is a

local between Zee and St. Francisville(1). An existing 69-kV transmission line belonging to Gulf States Utilities crosses the property on an abandoned railroad line that runs roughly parallel to the Mississippi River. This transmission line serves the St. Francisville region and the Louisiana State Penitentiary in Angola. 2.2-1

RBS ER-OLS The Starhill Radio Tower is located just north of the intersection of State Road 965 and North Access

Road, approximately 1 km (0.6 mi) from the Unit 2 reactor, the nearer of the two units.

This microwave tower is part of the long-distance telephone relay line between Lake City, Florida and Houston, Texas. It is an installation for which access 24 hr a day, 7 days a we ik is required for routine maintenance and emergencies <2) The microwave tower and its 0.7-ha (1.7-acre) parcel will continue to be owned and operated by American Telephone and Telegraph. Access will not be restricted during operation of River Bend Station. No major residential areas are located adjacent to the site, but a small residential area is presently located on GSU property along State Road 965. In addition, there is one house on US Highway 61 adjacent to the North Access Road. 4 Upon plant startup, land leases on the River Bend property will be discontinued, as well as housing leases along State Road 565. Residents of the house on US Highway 61 will be permitted to stay. The western portion of the property is a wildlife management area which will contain a lake of approxinately 13.8 ha (34.2 acres). A road will be constructed from the River Access Road to the Wildlife Management Lake. This area will lend itself to use as an outdoor classroom where principles and practices of conservation may be taught to local schoolchildren. A path around the lake's edge will provide 4 access. A land and wildlife management policy is being developed for the River Bend Property. Approximately 950 acres of the site are considered wetlands by the Louisiana Wildlife and Fisheries Commission and the U.S. Fish and Wildlife Service. Construction within onsite wetlands has been limited to the extent

possible, in compliance with Executive Order 11990 (Protection of Wetlands).

Approximately 15 acres were removed for construction of River Access Road and the embayment. About 830 acres of the site are Mississippi River floodplain. West Creek and a portion of Grants

Bayou, and their associated floodplains, are included within the site boundary.

. In accordance with Executive Order 11988 (Floodplains), construction activities in floodplains have been minimized to the extent possible. Adequate flood protection is provided for plant structures and equipment. Supplement 4 2.2-2 February 1983 O

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f'If M 'd XL T r r L M ENVIRONMENTAL REPORT - OLS

~ SUPPLEMENT 4 FEBRUARY 1983

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2. 4 - 4 (3

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SUPPLEMENT 4 FEBRUARY 1983

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LEGEND

'**Q. J VICKSBURG COLLINS-WAVERLY ASSOCIATION (LEVEL TO NE ARLY SILTY FL')ODPLAIN SOIL ) MEMPH:S LCRING ASSOCIATION 4 ; /\\ )% (GENTLY TO STEEPLY S!LTY SOIL) jg;E. , d. S.I. SHARKEY-COMMERCE ASSOCI ATION g ." h/' (LEVEL TO NEARLY LEVEL. LOAMY FLOOOPL AIN SOIL) /il,a4 3 NV' p.m 2 [*jTY .h wj.,o h-W p) NOTES k "*.000 [' ' l I VERTICAL DATUM ,r-MEAN SEA LEVEL AS ESTABLISHED BY U S ,. \\..,/ COAST AND GEODETIC SURVEY \\ l j\\ }~, Y N~ ",L':,T p

h t;{ f; 51 y.

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T i

RIVER BEND STATION 4:; ENVIRONMENTAL REPORT - -OUS. ~ I-. SUPPLEMENT 4 FEBRUARY 1983

-x ~ - - - - - - - - - - I A n I k l 3 ~ z $~ggl,,f%s,'j;;g f/ n I l_ ^ j ;; '/ 7 0 Q-34 j y" ; -S 6 l .F;. typ n. 7 Xt: l9 / D/. 1 y 2 5 1 / - A E i M L: k, .x 'o N.- a 27 NOTE: x

UNDEC 4
MOOgl f'4 J

/ 26 f* 25,/ k -( -z. J y ~ g' J%

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d

F. :

SWEETGUM, WATER OAK, GREEN ASH, SYCAMORE l 205) SWEETGUM, 'NATER OAK, HACKBERRY, SHUMARD OAK SWEETGUM, WATER OAK, CHERRYBARK OAK, WHITE ASH, HACKBERRY, COW OAK .J BOXELDER, HACKBERRY, SWEETGUM, SYCAMORE SWEETGUM, LOBLOLLY PINE B LOBLOLLY PINE, SWEETGUM CD1 LOBLOLLY PINE, AMERICAN BEECH, SWEETGUM LOBLOLLY PINE BOTTOMLAND FOREST 1L TUPELOGUM, BALDCYPRESS TUPELOGUM, HACKBERRY, ASH fh# (N ' HACKBERRY, BOXELDER, ASH, SYCAMORE PONDS h(( SM ALL M AMM AL TRAPPING AREAS (H ABITATS I,II, UI) MEADOWS AND PASTURES ,,, l l l-24, 27-34 UPLAND MEADOWS AND PASTURES SC ALE - M ETERS 25,26 BOTTOMLAND MEADOWS AND PASTURES 300 2000 3000 4000 i e i i SCALE-FEET FIGURE 2.4-4 2 BASAL AREA / ACRE tSTOCKED-51.3 FT R ATELY STOCKED-lOS FT2 BASAL AREA / ACRE SITE VEGETATIVE COVER RIVER BEND STATION ENVIRONMENTAL REPORT-OLS SUPPLEMENT 4 FEBRUARY 1983

RBS ER-OLS / lV) TABLE OF CONTENTS Chapter Section Title Volume 1 INTRODUCTION 1 1.1 The Proposed Project 1 1.2 Status of Reviews and Approvals 1 1.3 Substantive Informational Changes from Construction Permit Stage 1 2 ENVIRONMENTAL DESCRIPTIONS 1 i 2.1 Description of the Station Location 1 2.2 Land 1 2.3 Water 1 2.4 Ecology 1 2.5 Socioeconomics 2 2.6 Geology 2 2.7 Meteorology 2 2.8 Ambient Air Quality 2 2.9 Ambient Noise 2 2.10 Related Federal Project Activities 2 APPENDICES 2A, 2B, and 2C 3 (~'N 3 PLANT DESCRIPTION 3 (,) 3.1 External Appearance and Plant Layout 3 3.2 Reactor Steam - Electric System 3 3.3 Plant Water Use 3 3.4 Cooling System 3 3.5 Radioactive Waste Management Systems 3 3.6 Nonradioactive Waste Systems 3 3.7 Power Transmission Systems 3 3.8 Transportation of Radioactive Materials 3 4 ENVIRONMENTAL IMPACTS OF CONSTRUCTION 3 4.1 Land Use Impacts 3 4.2 Hydrological Alterations and Water Use Impacts 3 4.3 Ecological Impacts 3 4.4 Socioeconomic Impacts 3 4.5 Radiation Exposure to Construction Workers 3 4.6 Measures and Controls to Limit Adverse Impacts During Construction 3 ( Supplement 4 i February 1983

RBS ER-OLS TABLE OF CONTENTS Chapter Section Title Volume 5 ENVIRONMENTAL IMPACTS OF STATION 3 OPERATION 3 5.1 Land Use Impacts 3 5.2 Hydrological Alterations, Plant Water Supply, and Water Use Impacts 3 5.3 Cooling System Impacts 3 5.4 Radiological Impacts of Normal Operation 4 5.5 Nonradioactive Waote System Impacts 4 5.6 Transmission System Impacts 4 5.7 Uranium Fuel Cycle Impacts 4 5.8 Socioeconomic Impacts 4 5.9 Decommissioning 4 5.10 Measures and Controls to Limit Adverse Impacts During Operation 4 APPENDIX 5A 4 6 ENVIRONMENTAL MEASUREMENTS AND MONITORING PROGRAMS 4 6.1 Thermal 4 6.2 Radiological 4 6.3 Hydrological 4 6.4 Meteorological 4 6.5 Biological 4 6.6 Chemical 4 6.7 Other Monitoring Programs 4 7 ENVIRONMENTAL IMPACTS OF POSTULATED ACCIDENTS INVOLVING RADIOACTIVE MATERIALS 4 7.1 Plant Accidents 4 7.2 Transportation Accidents 4 8 THE NEED FOR THE PLANT 4 4 9 ALTERNATIVES TO THE PROJECT 4 Supplement 4 ii February 1983

RBS FR-OLS CHAPTER 2 TABLE OF CONTENTS (Cont) Section Title Page 2.8.5 EPA Attainment /Nonattainment and Class I Area Designations 2.8-3 4 2.8.6 Conclusions 2.8-3 2.9 AMBIENT NOISE 2.9-1 2.10 RELATED FEDERAL PROJECT ACTIVITIES 2.10-1 APPENDIX 2A HYDROGRAPHIC STUDIES REPORT APPENDIX 2B ALLIGATOR BAYOU FLOOD STUDY PRESENT BAYOU HYDROLOGY APPENDIX 2C POPULATION DISTRIBUTION 4 l l l l f i l l Supplement 4 2-v February 1983 0

RBS ER-OLS CHAPTER 2 LIST OF TABLES Table Number Title 2.2-1 LAND USES OF PARISHES WITHIN 10 KM OF THE RIVER BEND STATION IN 1972 2.2-1 LAND USES OF PARISHES WITHIN 10 KM OF THE RIVER BEND STATION IN 1972 2.2-2 PIPELINES IN THE VICINITY OF RIVER BEND STATION 2.2-3 INDUSTRIAL AND MANUFACTURING FIRMS AND EXTRACTIVE OPERATIONS WITH 10 KM 2.2-4 MAJOR RECREATION AREAS WITH 10 KM 2.2-5 AGRICULTURAL PRODUCTION OF CROPS AND ANIMALS FOR FOUR PARISHES WITHIN 10 KM FOR 1978 2.2-6 LAND USE DATA ON ROUTE I 2.2-7 LAND USE DATA ON ROUTE II 2.2-8 LAND USE DATA'ON ROUTE III 2.2-9 LAND TYPES CROSSED BY TRANSMISSION CORRIDORS 2.2-10 LAND USE CATEGORIES FOR LOUISIANA PARISHES WITHIN 80 KM OF RIVER BEND STATION IN 1972 2.2-11 MAJOR LAND USE CATEGORIES FOR MISSISSIPPI COUNTIES WITHIN 80 KM OF RIVER BEND STATION IN 1979 2.2-12 FOUR PRINCIPAL AGRICULTURAL PRODUCTS IN LOUISIANA: ACREAGE, YIELD, AND PRODUCTION IN 1978 FOR THE THREE FARMING AREAS IN LOUISIANA WITHIN 80 KM OF RIVER BEND STATION 2.2-12a TOTAL KG CROPS (MAJOR) PER SECTOR, 1978 2.2-12b TOTAL CATTLE AND CALF PRODUCTION 2 (NO. OF HEAD) PER SECTOR, 1978 Supplement 2 2-vi March 1982

RBS ER-OLS 2.5 SOCIOECONOMICS ) \\~/ 2.5.1 Demography The demographic information presented in this chapter is derived from 1976 data which was the most current data when this report was originally compiled'2,25 This information is used in Sections 2.2, 4.4.2, and 5.8.2. Reformatted and 4 updated (based on 1980 census results) data on permanent population distribution is listed in Appendix 2C. This data is utilized in Sections 5.4 and Appendix SA. River Bend Station is located adjacent to the Mississippi River in the southwest portion of West Feliciana

Parish, approximately 4 km (2.5 mi) southeast of the town of St.

Francisville and about 28 km (17 mi) north of the nearest boundary of the city of Baton Rouge. In 1976 West Feliciana Parish had an estimated population of 8,619 at an average density oi 7.8 people per sq km (21.3 people per sq mi)'1,25 This population density is considerably lower than the state average of 34 people per sq km (86.6 people per sq mi), and lower than the average densities of the other parishes within 20 km (12 mi) of the station. The 1976 population and population density for the five parishes within 20 km of the station are shown in Table 2.5-1. Parish boundaries are shown in Fig. 2.5-1. Im) The 80-km (50-mi) area surrounding the station contains portions or all of 19 Louisiana parishes and 5 Mississippi counties. Also within 80 km are portions of the Baton Rouge Standard Metropolitan Statistical Area (SMSA) and the Lafayette SMSA. Political boundaries of parishes and population centers within 80 km are shown on Fig. 2.5-2. The year 1985 is being used as the year of initial plant operation for population projection purposes. Since 1985 is 8 months past the expected commercial operation date of April 1984, it provides a conservative estimate of total population. l 2.5.1.1-Population within 20 km (12 mi) l The total 1980 population within 20 km of the station is estimated to be 32,880, a 1 percent decrease over the 1970 total'1,3'. This population is projected to increase to approximately 34,604 by the year 2000 and to about 41,117 by j 2030<2,3> The 70-km area contains portions of West Feliciana, East Feliciana, East Baton

Rouge, West Baton l

Rouge, and Pointe Coupee Parishes and portions or all of five population centers:

St. Francisville, New

Roads,

Jackson, Slaughter, and Zachary.

Parish boundaries and population centers are shown in Fig. 2.5-1. ( (O L _) Supplement 4 2.5-1 February 1983 m-.m. =-7

RBS ER-OLS Of the five population centers in the area, the town of Zachary, containing approximately 6,001 people in

1976, is the largest in population size'2)

Following Zachary in population size are New Roads,

Jackson, St.

Francisville, and Slaughter with estimated 1976 populations of 4,081, 3,199, 1,446, and 690 people, respectively<2> Current and O Supplement 4 2.5-la February 1983

.. = RBS ER-OLS O I i l J i i THIS PAGE INTENTIONALLY BLANK I l O t 4 I Supplement 4 2.5-lb February 1983 l

RBS ER-CES projected population estimates for the five parishes and five towns are shcwn in Table 2.5-2. lll It is expected that a large proportion of the population growth in the 20-km area will cccur around the northern fringes of the city of Baton Rouge, with the satellite ccmmunities absorbing much of the city's excess population. This expectation is reflected in the growth of the town of Zachary, which is expected to reach a population of 8,859 in the year

2030, a

79 percent population increase over its 1970 population (1,3). Population growth between 1960 and 1976 in the five parishes composing the 20-km area is shcwn in Table 2.5-3. Population distribution within 4 km of the station is based on a door-to-door survey conducted during December 1979 and January 1980(*). Between 4 and 10 km, population distribution is based on a house count from Louisiana Department cf Transportation maps and U.S. Geological Survey maps on which houses have been symtolically identified ( 5,*). Houses were used to estimate the area population by applying a factor of 3.88 persons per household for each house in West Feliciana Parish and 3.74 persons per househcid for each house in Pointe Coupee Parish (7). Population figures within 10 km of the site were then adjusted by multiplying the population value by the county growth factors, supplied by the University of New

Orleans, which used the cohort-component method to obtain the required projection ( 1 ).

Polar-grid sector populations between 10 and 20 km are based on 1970 U.S. Census data and state population projections (1,3). Sector populations were determined by l aesuming that the population of a minor civil division (e.g., ward or to%n) is evenly distributed over its l geographic area. The proportion of each civil divisicn's area in each grid sector was then determined and applied tc l each civil division's total pcpulation, yieldino the population in each grid sector. Fopulaticn projections, based on 1975 projections supplied by the University of New

Orleans, were applied to each civil division, assuming that each portion would maintain its relative share of any population change.

Population density was calculated by dividing the populaticn in each sector by its lana area. Population distribution within a 20-km radius of the plant for 1970 through 2030 is shown in Fig. 2.5-3 through 2.5-9 and listed in Tables 2.5-4 through 2.5-10. Transient population within 20 km of the station is limited due to the rural character of the area. There are, however, a number of school, industry, and recreation facilities in the area that create daily and seasonal changes in sector 2.S-2

RBS ER-CES Grace Episcopal Church, Louisiana's second oldest Protestant (~'N church, was built in 1827 in St. Francisville, Acts of \\_-) Incorporation and Investiture followed in 1829. Shelled during the Civil Kar, the church began a rebuilding program with final restoration in the 1880s. The church is located in the center of St. Francisville, apprcximately 5.7 kN (3.5 mi) west-northwest of the site. Both Propinquity and Grace Episcopal Church in St. Francisville are within the historic district that was nominated for inclusion in the National Register of Historic Places in the Spring of 1979. The area covers more than four blocks. Bounded by Royal and Ferdinand Streets, the district includes private homes, a court house, law offices, a

bank, and town hall.

The West Feliciana Historical Society is attempting to extend these boundaries in order to further preserve St. Francisville history (33). The

Cottage, a

series of buildings erected from 1795 to 1859, was originally the home of "The Fighting Butler Family." Andrew Jackson is known to have stopped there atter the Battle cf New Orleans. The Cottage contains much of the original furniture, and 15 plantaticn outbuildings are still standing. It is situated on US Highway 61, approximately 11.2 km (7.0 mi) ncrtin-northwest of the site. Overnight accommodations are available in the home. (m) Rosedown Plantation, listed by the state of Louisiana as a place of historic interest, is located about 5.8 km (3. 6 mi) northwest of the site on State Highway 10. Rosedcwn Plantation was a Spanish grant made in 1789. Daniel Turnbull built the present Rcsedown in 1835. The house and the 17th century style gardens at Rosedown are completely restored and stand as a museum of the Old Scuth. 2.5.3.2 Arenaeolcgical Significance An archaeological investigation was performed through archival research and foot investigation in December 1971 and was updated on October 9, 1972. From these investigations it was learned that Indian 3 traversed the area but no archaeological remains were found that were indicative cf long-term village cccupation(3*). Sites 4 and 5 on Fig. 2.5-18 locate the areas where historic campsite artifacts were found. Additional information is found in Section 2.5.3.4. l (D \\,) 2.5-15

RBS ER-OLS 2.5.3.3 Natural Landmarks There are no natural landmarks within 16 km (10 mi) of the site listed in the National Register of Natural Landmarks through December 1979. 2.5.3.4 Historic and Archaeological Significance Along Transmission Rights-of-Way The only National Register of Historic Places property within 2 km (1.2 mi) of any of the three transmission corridors is the Port Hudson Battlefield, which is 11.8 km (7.4 mi) south-southwest of River Bend, crossed by Route II. Section 2.2.2 describes the corridor. The archaeological significance of this area is discussed in the following paragraphs. Route II passes within 2 km (1.2 mi) of the Baker Heritage Museum, a site of historic interest recognized by the state of Louisiana and local communities. The museum is on Mississippi and Adams Streets in Baker, Louisiana, one block east of State Road 19. The museum includes a general store and rural life exhibits housed in a turn-of-the-century home cas-37) 3 Eighteen archaeological and historical sites, five of which pertain to the Port Hudson Battlefield

area, are located within 2 km (1.2 mi) of the transmission corridors.

These sites were located through use of archaeological files and

maps, and subsequent foot investigations and construction surveys by state archaeologists.

The locations attest to the presence of peoples during prehistoric and historic eras and include mounds, campsites, forts,

villages, and house sites.

Table 2.5-36 and Fig. 2.5-18 locate and identify the archaeological and historical sites within 2 km (1.2 mi) of the transmission corridors. ~ Prior to construction, an archaeological investigation of the River Bend site was performed by Robert W.

Neuman, a

professional archaeologist from Louisiana State University. i l His investigation uncovered three campsite areas around Site 5 on Fig. 2.5-18. However, the artifacts did not indicate long-term village occupation or mound sites. Several other sites are located partially or totally within the transmission corridors <as,as> Among these are the Riddle g Cemetery at Site 6, Spot Find No. 1, and the Civil War 3 breastworks at Sites 8, 9, and 18. Sites identified as 8 i through 11 and 18 are located within the Port Hudson Battlefield site. Supplement 4 2.5-16 February 1983 O

~t 938 695 449 504 l,256 337 332 \\ II= <( 2 m % lE a. 131 5 T 944 4 68 ". ' s y u Ill a 4 M / 11

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t 20Km 2,059 ) I 034 Jochson n 2,930 2,799 ) l 323 384 Sloughter PARISH ~~" ST FELICI AN A RbOGE PARI B AT 4,140 Zachor'y 4,243 9,441 9,508 FIGURE 2.5-8 2020 POPULATION DISTRIBUTION WITHIN 20 KILOMETERS RIVER BEND STATION l ENVIRONMENTAL REPORT-OLS l SUPPLEMENT 4 FEBRGE 1983

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42 \\ RIVER BEND STATION ENVIRONMENTAL REPORT-OLS SUPPLEMENT 4 FEBRUARY 1983

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p' . I nN i/ VALLEYS p l Q'1 l 6 L\\ <r Jj )$ ,I [,9h \\ jc;,j? *J!, h LEGENO: CITRONELLE FORMATION f"l-j, -/, h O PORT HICKEY FORMATION y r/ $ HOLOCENE FLOODPLAIN Y f $g jf QQ~ \\ i TQ fi ~s h h ,l~',a'i&g},'f;h i 'i' '"' "" "" '?" 2 !k SCALE - FEET Pd h ',,w, }}(h a v4 Is - Q'q Fu fg) n METERS FIGURE 2.6-1 ,{ eti ' ) ('- eP SITE GEOLOGIC MAP c ~) ~C / / RIVER BEND STATION ENVIRONMENTAL REPORT - OLS SUPPLEMENT 4 FEBRUARY 1983

i RBS ER-OLS () annual wind direction at the site and Ryan Airport was east i during the concurrent 2-yr period. The least prevalent annual wind directions at the site and Ryan Airport-during the concurrent period were southwest and south-southwest, respectively. The prevailing and least prevalent annual wind directions at Ryan Airport during the 30-yr period were southeast and west-northwest, respectively. The differences between the frequent and least frequent aforementioned wind directions were due in part to the following: Observer Bias: The observer at the National Weather Service (NWS) tended to report the wind direction to the primary 8 of the 16 compass points. Conversion Bias: After January 1,

1964, wind directions were observed to tens of degrees and converted to the 16 point code for the meteorological data tape.

Thirty deg sectors were considered for the

north, east,

south, and west compass points and 20-deg sectors for the remaining 12.

. ("') The conversion procedure produced a () frequency bias in the four principal compass points. Averaging Period: For an hourly NWS wind direction observation, the observer estimates the wind direction during only a few minutes of the hour. After January 1,

1964, every 3-hr observations were used for the NWS meteorological data tape.

An hourly onsite wind direction observation was determined by averaging the valid minute wind direction data (Section

6. 4.1. 5) recorded during the hour.

Summeries of 30- and 150-ft wind persistence episodes at the River Bend site for the period March 17, 1977 through March 16,

1979, are presented in Tables 2.7-31 and 2.7-32,

/ respectively. The maximum wind persistence episodes at the 30-and 150-ft levels were 20 hr from the south and east-northeast, and 32 hr from the east-southeast, respectively. A summary of wind persistence episodes at Ryan Airport for the period January 1, 1949 through

RBS ER-OLS December 31, 1964, is presented in Table 2.7-33. The maximum wind persistence episode was 89 hr from the southeast. g 2.7.3.11 Stability Atmospheric stability was classified according to the temperature gradient values listed for the seven Pasquill stability categories' in Regulatory Guide 1.23(26'. Joint wind

speed, wind direction, and atmospheric stability summaries, based on wind speed and wind direction at the 30-ft level on the meteorological tower for the period March 17, 1977 through March 16,

1979, are provided in Tables 2.7-34 through 2.7-41.

Tables 2.7-42 through 2.7-73 provide seasonal joint frequency distributions for the 30-ft winds. Similar information for the same onsite data period for the 150-ft wind speed and wind direction parameters is presented in Tables 2.7-74 through 2.7-81 and Tables 2.7-82 through 2.7-113 for the annual and seasonal

periods, respectively.

In the joint frequency summaries, separate tabulations are made for calm winds (hourly average wind speeds equal to or below anemometer or winn direction sensor threshold speed, whichever is higher) and for variable winds (hourly average wind speeds between threshold and 2 mi/hr when hourly average wind direction ranges are greater than or equal to 120 deg azimuth). 2.7.3.12 Topographical Description The topography in the area is essentially flat, with some small rolling hills. The greatest elevation within 5 mi of ~ the site is 220 ft msl which is 125 ft higher than plant grade. The general topography within 5 mi of the plant site is shown in Fig. 2.7-16 and topography out to 50 mi is provided in Fig. 2.7-17. Topographic cross sections for each of 16 22.5 deg sectors radiating from the plant are given in Fig. 2.7-18 through 2.7-25 for distances out to 5 mi. The effect of topography on both short-term and long-term diffusion estimates for the site is expected to be insignificant because of the relatively flat terrain of the area. l Supplement 4 2.7-10 February 1983 O l

RBS ER-OLS [v-s} 2.7.5 Long-Term (Routine) Diffusion Estimates 2.7.5.1 Objective Annual average CHI /Q and D/Q estimates for continuous and intermittent releases were calculated for each of the 16 22.5-deg sectors at receptor locations used to determine the maximum individual and population dose receptors. These CHI /Q and D/Q factors are used in Section 5.4 to estimate the radiation dose to man through a variety of pathways as described in that section. Grazing season values were represented by annual average values since the season was conservatively assumed to exist year-round. The methodology described in Regulatory Guide 1.111, Revision 1 provided guidance for the aforementioned analysis (ta). The distances by sector between the nearest significant receptor location (used to determine the maximum individual receptor) and the midpoint between the Units 1 and 2 containment buildinas are provided in Table 2.7-115. The minimum distances by sector between the property and restricted area boundaries, and the routine release points are in Table 2.7-116. The release point design parameters are in Table 2.7-117. The resultant CHI /Q and D/Q values for the maximum individual receptors and the population dose receptors are displayed in Tables 2.7-118 through 2.7-129. l2 O) (, 2.7.5.2 Calculation Techniques 2.7.5.2.1 Nomenclature 2.032 = (2/n)b (2n/16) * (dimensionless) 3.14159... (dimensionless) m = exp = 2.71828... (dimensionless) ET = Entrainment coefficient (dimensionless) 0 = Terrain recirculation j factor (dimensionless) C= Building shape l coefficient (dimensionless) l x = Downwind receptor distance (m) o = Vertical dispersion g coefficient (' ) m ('] 2.7-15 '% ) Supplement 2 March 1982 l I

RBS ER-OLS Dao 30-foot average wind = speed (m eec-1) Gaso 150-foot average wind = speed (m sec-1) (CHI /Q) Average concentration = normalized by source strength (see m-3) (CHI /Q) D = Depleted CHI /Q (sec m-3) F Momentum flux (m* sec-2) = m hb = Building height (m) h Release height (m) = r he = Effective release height (m) hpr = Nonbuoyant plume rise (m) ht= Topographic height of receptor above plant grade (m) d = Stack or vent diameter (m) ce = Efflux velocity (m sec-1) N = Total number of valid (dimensionless) hours of wind in all sectors for applicable averaging period 6/Q = Relative deposition rate normalized by source strength (m-1) D/Q = Relative deposition per unit area normalized by cource strength (m-2) G= Ground release (dimensionless) (subscript) 2.7-16

RBS ER-OLS 2.9 AMBIENT NOISE Two ambient surveys have been conducted in the vicinity of the River Bend site. The first survey was performed in June 1972 prior to construction and the latter in January 1980 during Unit 1 construction. Refer to Section 6.7 for the noise survey methodology and Section 5.8.1.2 for the assessment of the effects produced by the operational sound levels. Noise Sampling Area The noise sampling area is shown in Fig. 2.9-1. In general, i the terrain surrounding the site is mostly wooded except for the Mississippi

River, some open

fields, and farmland.

Eight measurement locations were selected to represent the acoustical environment in the vicinity of the site. Measurement location 1 is situated on the southeast edge of St. Francisville, approximately 2 km (1.25 mi) west-northwest of the site. This is the only-population center within a 4.8-km (3-mi) radius of the site. Measurement locations 2, 3, 4, 5, and 7 were selected as typical of the rural-f arm areas. Location 6 was selected at the intersection of Route 61, Route.966, and Police Jury Road to measure representa tive traf fic noise in the vicinity of roads near the site. Location 8 is in the general proximity .g of the Crown Zellerbach Papermill on Route 964, which is one of the major industrial areas surrounding the site. The exact locations of the measurement positions are described in Table 2.9-1. 1972 Survey This survey was conducted during June 15-16, 1972, prior to any construction at the River Bend site. The dominant noise source for the majority of the locations was insect noise, which masked all other sources with the exception of the papermill, the dominant noise source at location 8. With the insect noise, the minimum sound levels at all locations ranged from 49 to 56 dBA, which is equivalent to those found in a " Normal Suburnan Residential" area ( 3 ).

However, when the sound levels were adjusted to eliminate insect noise, the minimum calculated sound levels ranged from 31 to 39 dBA and are typical of a " Rural Community," with the exceptions of measurement locations 3, 4, and 8, which have generally higher sound levels due to their proximity to the papermillC S ).

The residual minimum A-weighted sound levels measured during the daytime and nighttime hours at the eight locations are presented in Table 2.9-2. 2.9-1

RBS ER-OLS 1980 Survey During January 9-10, 1980, a second ambient noise survey was conducted. There was little construction activity ongoing at that time. The reactor mat was poured January 15 through 17, 1980. Accordingly, no significant contributing noise-producing construction activity was in progress at that g time.

Also, approximately two-thirds of the noise measurements were obtained during nonworking hours.

The principal contributors to the noise environment remained basically the same as for the 1972 survey. Big Cajun No. 2 - Units 1, 2, and 3, a coal-fired power plant located across the Mississippi River approximately 2 km (1.25 mi) from the River Bend site, was not yet on-line at the time of this survey. These units are scheduled for startup in the early 1980s. The 1972 measurement locations remained the same with the exception of the following three adjustments. Location 2 was relocated approximately 900 m (3,000 ft) north of the radio tower on the perimeter of the new site boundary. Measurement location 3, inaccessible due to muddy roads, was relocated on the River Access Road, approximately 30 m (100 ft) west-southwest from a 69-kV transmission line onsite. Measurement location 8 had to be abandoned because of current inaccessibility to private property on which the papermill is located. The significant noise sources of this survey were a papermill and highway traffic. The insect noise was absent due to the winter season. A comparison of the insect-corrected levels for the 1572 survey with the measured levels of the 1980 curvey is presented in Table 2.9-2 and shows good agreement, with the exception of locations 2 and 6 which are 5-8 dBA higher. Highway traffic and the papermill noise contributed to the ambient sound levels at locations 2 and 6 being slightly higher than was anticipated in the 1972 survey estimate. The minimum ambient sound levels at all seven locations ranged from 34 to 41 dBA and are typical of a " Rural Community"'ll. The sound level data from the 1980 survey is reported in Table 2.9-2. Table 2.9-3 presents the measured equivalent sound level data for the seven measurement locations which was used in the determination of outdoor day-night sound levels (Ldn). The day-night sound level is the A-weighted equivalent sound level with a 10 dB penalty applied to sound occurring at nighttime and was developed by the EPA in 1974 as a descriptor for assessing community noise (2'. Since the 1972 survey was conducted prior to the development of

Ldn, only residual sound levels were acquired.

The 1980 survey was designed to obtain both residual data for compari.3on with Supplement 4 2.9-2 February 1983

i RBS ER-OLS. the 1972 results and statistical-data for the Ldn impact . assessment. Whereas the residual sound levels only describe the background sound, the day-night sound level takes into account intrusive noise events as well as background sound. i t' l 2 + i l l 4 } l i .I 1 1 i l t I Supplement 4 2.9-2a February 1983 i

RBS ER-OLS O l l i i THIS PAGE INTENTIONALLY BLANK l O i I i l Supplement 4 2.9-2b February 1983 0

l s~ et It 42l 42l IQ i 3 g, f 4,.. '6:: Z 4 5 965 c 3 Mll f ,: y ^ , ' StFrancisvilk n0Rm gg, ACCESS g l 10 f0A0 6 966 -A i C F I ,p ^ l $8 g B I ". S ' 'O e .S I 75 M CLIC lI 3 \\ g Po$$Q RIVER Attg$$ gy. x D f f g 4 d D & g5ON

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[h @h"v POSITION DESCRIPTION NUMBER O b 966 q 1 PECAN GROVE DRIVE, ST. FRANCISVILLE b +o k 2. ROUTE 965,900M (3OOOFT.) NORTH z OF RADIO TOWER \\ \\ Q' m" 3 RIVER ACCESS ROAD,30M (IOO FT.) WSW OF 69KV TRANSMISSION LINE C o' 4. POLICE JURY ROAD, POWELL FOREST p 67 PLANTATION, THE BROADBENTS + 5. POLICE JURY ROAD, STAR HILL CHURCH 7 6. INTERSECTION OF ROUTE 61, POLICE JURY ROAD G ROUTE 966 l 7. ROUTE 964,1.3 Km. (0.8 Mi.) NORTH OF f ILLINOIS CENTRAL GULF RR 964 O 1972 SURVEY POSITIONS 2,3 & 8 w RAILROAD H HOSPITAL l D CEMETARY f C CHURCH B CHURCH AND CEMETARY s A AUDIBON LAKES CAMP RESORT ILLINOIS CENTRAL GUL g RIVER BEND STATION 61 l FIGURE 2.9-1 AMBIENT SOUND LEVEL 0 1 2 MEASUREMENT LOCATIONS SC ALE-MILES 2 4 SCALE-KILOMETERS RIVER BEND STATION ENVIRONMENTAL REPORT - OLS SUPPLEMENT 4 FEBRU RY 1583

RBS ER-OLS [/T TABLE OF CONTENTS x_ Chapter Section Title Volume 1 INTRODUCTION 1 1.1 The Proposed Project l' 1.2 Status of Reviews and Approvals 1 1.3 Substantive Informational Changes from Construction Permit Stage 1 2 ENVIRONMENTAL DESCRIPTIONS 1 2.1 Description of the Station Location 1 2.2 Land 1 2.3 Water 1 2.4 Ecology 1 2.5 Socioeconomics 2 2.6 Geology 2 2.7 Meteorology 2 2.8 Ambient Air Quality 2 2.9 Ambient Noise 2 2.10 Related Federal Project Activities 2 APPENDICES 2A, 2B, and 2C 3 (j 3 PLANT DESCRIPTION 3 g (_ 3.1 External Appearance and Plant Layout 3 3.2 Reactor Steam - Electric System 3 3.3 Plant Water Use 3 3.4 Cooling System 3 3.5 Radioactive Waste Management Systems 3 3.6 Nonradioactive Waste Systems 3 ~ 3. 7 Power Transmission Systems 3 3.8 Transportation of Radioactive Materials 3 4 ENVIRONMENTAL IMPACTS OF CONSTRUCTION 3 4.1 Land Use Impacts 3 4.2 Hydrological Alterations and Water Use Impacts 3 4.3 Ecological Impacts 3 4.4 Socioeconomic Impacts 3 4.5 Radiation Exposure to Construction Workers 3 4.6 Measures and Controls to Limit Adverse Impacts During Construction 3 } Supplement 4 i February 1983

RBS ER-OLS TABLE OF CONTENTS Chapter Section Title Volume 5 ENVIRONMENTAL IMPACTS OF STATION 3 OPERATION 3 5.1 Land Use Impacts 3 5.2 Hydrological Alterations, Plant Water Supply, and Water Use Impacts 3 5.3 Cooling System Impacts 3 5.4 Radiological Impacts of Normal Operation 4 5.5 Nonradioactive Waste System Impacts 4 5.6 Transmission System Impacts 4 5.7 Uranium Fuel Cycle Impacts 4 5.8 Socioeconomic Impacts 4 5.9 Decommissioning 4 5.10 Measures and Controls to Limit Adverse Impacts During Operation 4 APPENDIX 5A 4 6 ENVIRONMENTAL MEASUREMENTS AND MONITORING PROCRAMS 4 6.1 Thermal 4 6.2 Radiological 4 6.3 Hydrological 4 6.4 Meteorological 4 6.5 Biological 4 6.6 Chemical 4 6.7 other Monitoring Programs 4 7 ENVIRONMENTAL IMPACTS OF POSTULATED ACCIDENTS INVOLVING RADIOACTIVE MATERIALS 4 7.1 Plant Accidents 4 7.2 Transportation Accidents 4 8 THE NEED FOR THE PLANT 4 4 l l l 9 ALTERNATIVES TO THE PROJECT 4 1 Supplement 4 ii Fe'ruary 1983 o

4 I APPENDIX 2C i l POPULATION DISTRIBUTION i l FEBRUARY 1983 l l l i l l l ~

= RBS ER-OLS I ) APPENDIX 2C N./ POPULATION DISTRIBUTION LIST OF TABLES Number Title 2C-1 1980 Population Distribution Within 10 Miles of RBS 2C-2 1985 Population Distribution Within lO. Miles of RBS 2C-3 1990 Population Distribution Within 10 Miles of RBS 2C-4 2000 Population Distribution Within 10 Miles of RBS 2C-5 2010 Population Distribution Within 10 Miles of RBS 2C-6 2020 Population Distribution Within 10 Miles of RBS 2C-7 2030 Population Distribution Within 10 Miles of RBS 2C-8 Current and Projected Populations of Parishes and Towns Within 10 Miles b (,/ 2C-9 1980 Population Distribution Within 50 Miles of RBS 2C-10 1985 Population Distribution Within 50 Miles of RBS 2C-11 1990 Population Distribution Within 50 Miles of RBS 2C-12 2000 Population Distribution Within 50 Miles of RBS 2C-13 2010 Population Distribution Within 50 Miles of RBS 2C-14 2020 Population Distribution Within 50 Miles of RBS 2C-15 2030 Population Distribution Within 50 Miles of RBS d Y q

RBS-ER-OLS APPENDIX 2C POPULATION DISTRIBUTION i LIST OF FIGURES Number Title i l 2C-1 Population Sectors Within 10 Miles 2C-2 Population Sectors Within 50 Miles i l l [ O l i t Supplement 4 2C-ii February 1983 I l

RBS ER-OLS (^') APPENDIX 2C V Population distribution within a 10-mi radius of the River Bend Station for the years 1980,

1985, 1990,

2000, 2010,

2020, and 2030 is listed by distance and direction in Tables 2C-1 through 2C-7.

Figure 2C-1 shows sector locations within the 10-mi area. Current and projected population estimates of the portions of the five parishes, West Feliciana, East Feliciana, West Baton Rouge, East Baton Rouge, and Pointe Coupee, and all or major portions of the three

towns, St. Francisville, New

Roads, and

Jackson, that comprise the 10-mi radius of the River Bend Station are listed in Table 2C-8.

Population distribution within a 50-mi radius of the River Bend Station for the years 1980,

1985, 1990,

2000, 2010,

2020, and 2030 is listed by distance and direction in Tables 2C-9 through 2C-15.

Figure 2C-2 identifies sector locations between 10 and 50 mi of the River Bend Station. Population distribution within 3 mi of the station is based on a door-to-door survey conducted during December 1979 and January 1980(1) Between 3-and 10-mi population distribution is based on a house count from U.S. Geological gS t ) Survey maps on which houses have been symbolically identified (2) and field reconnaissance in June 1982. Houses were used to estimate the area population by applying a persons per household factor to the dwellings in each minor civil division (e.g., a ward or town). Population figures within 10 mi of the site were then adjusted by multiplying the population value by the county growth factors, supplied by the University of New Orleans, which used the cohort-i3) component method to obtain the required projection Polar-grid sector populations between 10 and 50 mi are based on 1980 U.S. Census data and state population projections <a,4,s,s,7) Sector populations were determined by assuming that the population of a minor civil division (e.g., ward or town) is evenly distributed over its geographic area. The proportion of each civil division's area in each grid sector was then determined and applied to each civil division's total population, yielding the population in each grid sector. Population projections based on 1980 census figures supplied by the University of New Orleans were applied to each civil division, assuming that each portion would maintain its relative share of any population change. () Supplement 4 2C-1 February 1983 V

1 RBS ER-OLS 2C References 1. Gulf South Research Institute. Livestock Survey for Radiation Exposure Pathways within a 3 1/10 mi (5 km) Radius of GSU's River Bend Nuclear Power Plant Site. March 1980. 2. U.S. Geological Survey Quadrangle Maps: Weyanoke, 1965 (P1-72); Elm

Park, 1965 (P1-72);

New

Roads, 1962 (PR-80);

Port

Hudson, 1963 (PR-80); St. Francisville, 1965 (P1-72); Erwinville, 1962 (PR-80);

LaCour, 1965 (P1-72);

Jackson, 1954; Morganza, 1968; Zachary, 1963 (PR-80); Laurel Hill, 1965 (P1-72);

and

Walls, 1963 (Pr-70, 80).

3. Maruggi, V; Kemp, A; and Fletes, R. Interim Projections to 2000 for Louisiana and for Louisiana Parishes - Series 1 Report. University of New Orleans Division of Business and Economic Research and the Louisiana State Planning Office. August 1982. 4.

Sivia, T.

B., Regional Economic Projection Series: U.S. Regional Projections 1980-2000. National Planning Association. REPF 80-R-1, Summary Table 6.5, Mississippi. 5. U.S. Department of Commerce Bureau of the Census. Number of Inhabitants - Louisiana, 1980 Census of Population. PC 80-1-A20. Washington, DC. 6. U.S. Department of Commerce Bureau of the Census. Number of Inhabitants - Mississippi, 1980 Census of Population. PC 80-1-A26. Washington, DC, January 1982. 7. Stone and Webster Engineering Corporation. Computer Program EN-253 Population Allocation Program.

Boston, MA, September 1982.

Supplement 4 2C-2 February 1983 0

f RBS ER-OLS () TABLE 2C-1 1980 POPULATION DISTRIBUTION WITHIN 10 MILES OF RIVER BEND STATION .i Distance (miles) Total Direction 0-1 1-2 2-3 3-4 4-5 5-10 0-10 N O 86 82 29 352 491 1,040 NNE 12 231 27 39 6 222 537 NE 6 21 15 0 56 2,285 2,383 ENE O 29 15 20 58 1,150 1,272 E 5 11 0 20 12 228 276 ESE 2 0 18 72 17 657 766 SE O O 4 0 110 1,943 2,057 SSE O O 2 O O 354 356 S O 4 0 0 0 980 984 SSW O O O 7 274 989 1,270 SW O O O O O 4,245 4,245 WSW O O O 2 2 4,141 4,145 W O O 1 0 5 0 6 WNW O O 169 694 21 21 905 5 NW 20 19 93 620 412 383 1,547 NNW 15 131 82 33 30 434 725 TOTAL 60 532 508 1,536 1,355 18,523 22,514 1 Supplement 4 1 of 1 February 1983 J _. -.. -..,... _, _ _.. -.. -,,.,,..., _,..... ~ _. _,. _ ....,. -..... ~ _, - _,,. _, _ _ -. _.., - r,.

RBS ER-OLS () TABLE 2C-2 1985 POPULATION DISTRIBUTION WITHIN 10 MILES OF RIVER BEND STATION Distance (miles) Total Direction 0-1 1-2 2-3 3-4 4-5 5-10 0-10 N O 83 84 30 364 508 1,074 NNE 12 238 28 39 6 230 553 NE 6 22 15 0 58 2,432 2,533 ENE O 30 16 20 61 1,226 1,353 E 5 11 0 21 14 244 295 ESE 2 0 18 77 18 713 828 SE O O 4 0 117 2,140 2,261 SSE O O 2 O O 389 391 S 0 4 0 0 0 1,036 1,040 SSW O O O 8 288 1,045 1,341 SW O O O O O 4,477 4,477 WSW 0 0 0 3 3 4,358 4,364 W 0 0 1 0 5 0 6 WNW O O 175 750 21 21 967 NW 21 19 96 986 426 396 1,944 NNW 15 134 84 33 30 448 744 I TOTAL 61 546 523 1,967 1,411 19,663 24,171 Supplement 4 1 of 1 February 1983

_.. =_ RBS ER-OLS TABLE 2C-3 1990 POPULATION DISTRIBUTION WITHIN 10 MILES OF RIVER BEND STATION Distance (miles) Total Direction 0-1 1-2 2-3 3-4 4-5 5-10 0-10 N O 92 87 -31 378 529 1,117 NNE 13 248 28 41 6 238 574 NE 6 22 16 0 60 2,614 2,718 ENE O 31 16 21 64 1,317 1,449 E 5 12 0 22 15 261 315 ESE 2 O' 19 82 19 773 895 SE O O 4 0 125 2,335 2,464 SSE O O 2 O O 424 426 S O 4 0 0 0 1,093 1,097 i SSW .O O O 8 304 1,100 1,212 SW O O O O O 4,719 4,719 WSW O O O 3 3 4,593 4,599 W O O 1 0 5 0 6 WNW O O 182 780 23 22 1,007 NW 21 20 99 1,035 442 413 2,030 NNW 16 140 88 35 32 468 779 ) TOTAL 63 569 542 2,058 1,476 20,899 25,607 %./ 4 l l i a l l I Supplement 4 1 of 1 February 1983 O L

RBS ER-OLS TABLE 2C-4 2000 POPULATION DISTRIBUTION WITHIN 10 MILES OF RIVER BEND STATION Distance (miles) Total Direction 0-1 1-2 2-3 3-4 4-5 5-10 0-10 N O 109 103 37 444 622 1,315 NNE 15 291 34 48 7 280 675 NE 8 26 19 0 72 3,058 3',183 ENE O 36 19 25 26 1,543 1,699 E 6 14 0 26 17 306 369 ESE 3' O 23 96 23 902 1,047 SE O O 5 0 148 2,710 2,863 SSE O O 3 0 0 492 495 S O 5 0 0 0 1,199 1,204 SSW O O O 9 333 1,207 1,549 j SW O O O O O 5,173 5,173 WSW O O O 3 3 5,056 5,062 W O O 2 0 6 0 8 WNW O O 214 918 27 27 1,186 NW 25 24 117 1,216 520 485 2,387 NNW 19 164 103 40 36 549 911 () TOTAL 76 669 642 2,418 1,712 23,609 29,126 1 a Supplement 4 1 of 1 February 1983 O

RBS ER-OLS ( TABLE 2C-5 2010 POPULATION DISTRIBUTION WITHIN 10 MILES OF RIVER BEND STATION i Distance (miles) Total Direction 0-1 1-2 2-3 3-4 4-5 5-10 0-10 N O 124 118 42 509 711 1,504 NNE 17 333 39 54 8-321 772 NE 9 30 22 0 82 3,651 3,794 ENE O 43 12 2 28 88 1,844 2,025 E 7 16 0 30 21-366 440 4 ESE 3 0 26 115 27 1,048 1,219 SE O O 6 0 176 3,091 3,273 SSE O O 3 0 0 564 567 S O 6 O' O O 1,324 1,330 SSW O O O 10 368 1,331 1,709 SW O O O O O 5,707 5,707 WSW O O O 3 3 5,598 5,604 W O O '2 0 7 0 9 WNW O O 245 1,052 31 30 1,358 NW 29 28 134 1,394 596 555 2,736 NNW 22 189 118 46 42 629 1,046 () TOTAL 87 769 735 2,774 1,958 26,770 33,093 J l l i { f Supplement 4 1 of 1 February 1983 O ! V

RBS ER-OLS TABLE 2C-6 w/ 2020 POPULATION DISTRIBUTION WITHIN 10 MILES OF RIVER BEND STATION Distance (miles) Total Direction 0-1 1-2 2-3 3-4 4-5 5-10 0-10 N O 144 138 49 588 822 1,741 i NNE 20 386 45 65 10 372 898 NE 10 35 25 0 95 4,381 4,546 ENE O 48 25 33 101 2,215 2,422 E 8 18 0 35 24 439 524 ESE 3 0 30 138 33 1,213 1,417 SE O O 7 0 212 3,468 3,687 SSE O O 3 0 0 640 643 S O 7 O O O 1,459 1,466 SSW O O O 11 404 1,466 1,881 SW O O O O O 6,278 6,27C WSW O O O 4 4 6,183 6,191 W O O 2 0 7 0 9 WNW O O 284 1,216 35 35 1,570 NW 34 32 155 1,614 688 641-3,164 NNW 25 218 137 54 50 728 1,212 () TOTAL 100 888 851 3,219 2,251 30,340 37,649 Supplement 4 1 of 1 February 1983

RBS ER-OLS TABLE 2C-7 2030 POPULATION DISTRIBUTION WITHIN 10 MILES OF RIVER BEND STATION Distance (miles) Total Direction 0-1 1-2 2-3 3-4 4-5 5-10 10 N O 167 158 57 680 953 2,015 NNE 23 447 52 74 11 429 1,036 NE 12 41 29 0 109 5,246 5,437 ENE O 56 29 38 118 2,658 2,899 E 10 21 0 41 30 528 630 ESE 4 0 35 166 39 1,394 1,638 SE O O 8 0 254 3,842 4,104 SSE O O 4 0 0 716 720 S O 8 0 0 0 1,604 1,612 SSW O O O 12 445 1,609 2,066 SW 0-0 0 0 0 6,899 6,E99 WSW O O O 4 4 6,821 6,829 W O O 3 0 8 0 11 WNW O O 328 1,407 40 40 1,815 NW 39 37 179 1,865 796 744 3,660 NNW 29 252 158 62 56 842 1,399 () TOTAL 117 1,029 983 3,726 2,590 34,325 42,770 Supplement 4 1 of 1 February 1983 O

} A G J q l RBS ER-OLS TABLE 2C-8 CURatENT AND PROJECTED POPULATIONS OF PARISHES AND TOWNS WITHIN 10 MI Parish or Town 1980(1) 1990 2000 2010(33 2020(3) 2030(3) East Baton Rouge Parish 366,191 444,076(28 514,822(a3 581,429 642,697 698,826 East Feliciana Parish 19,015 21,807(2) 25,504(a3 30,503 36,645 43,956 Jackson (town) 3,133 3,593(3) 4,202(33 5,026-6,038 7,242 Pointe Coupee Parish 24,045 26,740(a) 29,306(28 32,329 35,574 39,081 New Roads (town) 3,924 4,364(33 4,783(3) 5,276 5,805 6,378 West Baton Rouge Parish 19,086 22,241(an 24,959(a) 28,268 31,756 35,492 West Feliciana Parish 12,186 13,476(a8 15,761(2) 18,005 20,773 23,971 St. Francisville (town) 1,471 1,958(38 2,234(3s 2,505 2,839 3,225 1 i 4 i 1 I Sources: j 1. Bureau of the Census. Number of Inhabitants - Louisiana, 1980 Census of Population. PHC80-V-20, Louisia na. U.S. Dept. of Commerce, Washington, D.C. 2. Maruggi, V.; Kemp, A; and Fletes, R. Interim Projections to 2000 for Louisiana and for Louisiana Parishes - Series 1 Report. University of New Orleans D! tision of Business and Economic Research and the Louisiana State Planning Of fice. August, 1982. 4 3. Stone & Webster Engineering Corporation. Computer Program EN253 Pop. Alloc. Program. Boston, MA. Septemter 1982. Supplement 4 1 of 1 February 1983 l

RBS ER-OLS TABLE 2C-9 } 1980 POPULATION DISTRIBUTION WITHIN 50 MILES OF RIVER BEND STATION Distance (miles) Total Direction 0-10 10-20 20-30 30-40 40-50 0-50 N 1,040 732 2,524 1,205 3,787 9,288 NNE 537 529 984 2,141 2,267 6,458 NE 2,383 2,403 3,173 2,710 3,209 13,878 ENE 1,272 3,678 3,099 2,215 2,971 13,235 E 276 2,831 5,059 3,116 12,575 23,857 ESE 766 16,151 17,095 9,386 11,375 54,773 SE 2,057 33,718 90,914 37,980 19,150 183,819 SSE 356 28,932 156,266 30,299 22,983 238,836 S 984 2,798 6,378 12,500 4,410 27,070 SSW 1,270 2,923 3,978 2,429 6,046 16,646 SW 4,245 3,599 2,378 5,202 17,203 32,627 WSW 4,415 14,165 2',643 4,875 35,262 40,390 W 6 1,409 3,139 2,480 4,925 11,959 WNW 905 631 1,560 4,753 11,176 19,015 NW 1,547 1,816 4,764 1,424 3,744 13,295-NNW 725 813 947 1,496 2,554 6,535 () TOTAL 22,514 104,428 304,901 124,201 163,637 719,681 i 1 i Supplement 4 1 of 1 February 1983 n v i 4 ,.-e -.,-,,,--n .-..,-m, r --,,,,,,,ya,,,-,--,----,.,.m

7. - -, -,. _ - -

ww.. ,e_ ,-,-~,

1 5 RBS ER-OLS TABLE 2C-10 1985 POPULATION DISTRIBUTION WITHIN 50 MILES OF RIVER BEND STATION Distance (miles) Total Direction 0-10 10-20 20-30 30-40 40-50 0-50 N 1,074 753 2,574 1,232 3,938 9,571 i NNE. 553 546 1,004 2,168 2,231 6,592 NE 2,533 2,561 3,252 2,732 3,234 14,312 ENE 1,353 3,920 3,301 2,254 3,050 13,878' E. 295 3,025 5,536 3,151 13,471 25,478 ESE 828 17,872 19,161 11,262 13,417 62,540 SE 2,261 37,363: 101,324 44,001 22,531 207,480 SSE 391 32,022 172,955 33,320 26,144 264,832 S 1,040 3,026 6,894 13,052 4,661 28,673 4 SSW 1,341 3,110 4,174 2,650 6,724 17,999 SW 4,477 3,796 2,532 C,705 19,203 35,713 WSW 4,364 1,544 2,772 5,090 36,892 50,662 W 6 1,483 3,289 2,592 5,150 12,520 h.'IW 967 662 1,643 5,034 11,864 20,170 NW 1,944 1,878 4,924 1,509' 3,963 14,218 NNW 744 839 965 1,542 2,628 6,718 () TOTAL 24,171 114,400 336,300 137,294 179,191 791,356 i l l h l Supplement 4 1 of 1 February 1983 , O i I ,, ~ _. . - ~.

i. RBS ER-OLS () TABLE 2C-11 1990 POPULATION DISTRIBUTION WITHIN 50 MILES OF RIVER BEND STATION ' ' Distance (mi) Total Direction 0-10 10-20 20-30 30-40 40-50 0-50 N 1,117 782 2,669 1,278 4,116 9,962 NNE 574 568 1,041 2,227 2,391 6,801 4 NE 2,718 2,753 3,382 2,778 3,290 14,921 ENE 1,449 4,218 3,550 2,310 3,150 14,677 E 315 3,259 6,021 3,198 14,399 27,192 ESE 895 19,547 21,218 13,287 15,609 70,556 SE 2,464 40,891 111,533 50,281 26,153 231,322 SSE 426 35,020 189,149 36,336 29,503 290,434 S 1,094 3,263 7,428 13,651 4,930 30,369 SSW 1,412 L,307 4,383 2,886 7,454 19,442 SW 4,719 4,002 2,690 6,248 21,315 38,974 WSW 4,599 1,627 2,918 5,349 38,812 53,305-W 6 1,563 3,456 2,724 5,414 13,163 WNW 1,007 697 1,734 5,349 12,612 21,399 NW 2,030 1,956 5,129 1,602 4,202 14,919 NNW 779 871 1,001 1,600 2,711 6,962 TOTAL 25,607 124,324 367,302 151,104 196,061 864,398 1

RBS ER-OLS ("N TABLE 2C-12 2000 POPULATION DISTRIBUTION WITHIN 50 MILES OF RIVER BEND STATION Distance (miles) Total Direction 0-10 10-20 20-30 30-40 40-50 0-50 N 1,315 871 2,771 1,328 4,377 10,662 NNE 675 638 1,081 2,319 2,480 7,193 NE 3,183 3,221 3,597 2,900 3,433 16,334 ENE 1,699 4,935 4,151 2,415 3,352 16,552 E 369 3,810 6,983_ 3,254 16,285 30,701 ESE 1,047 22,667 25,254 17,925' 20,579 87,472 SE 2,863 47,403 130,981 63,761 33,889 278,897 SSE 495 40,540 218,957 41,898 36,149 338,039 S 1,204 3,664 8,332 14,566 5,390 33,156 SSW 1,549 3,654 4,715 3,364 8,997 22,279 SW 3,173 4,365 2,995 7,404 25,654 45,611 WSW 5,062 1,784 3,206 5,889-42,799 58,740 W 8 1,719 3,803 2,998 5,967 14,495 WNW 1,186 777 1,903 5,967 14,074 23,907 NW 2,387 2,288 5,955 1,783 4,662 17,075 NNW 911 1,000 1,040 1,690 2,858 7,499 3 () TOTAL 29,126 143,356 425,724~179,461 230,945 1,008,612 J, s Supplement 4 1 of 1 February 1983 O

RBS ER-OLS [ ) TABLE 2C-13 %./ 2010 POPULATION DISTRIBUTION WITHIN 50 MILES OF RIVER BEND STATION Distance (miles) Total Direction 0-10 10-20 20-30 30-40 40-50 0-50 N 1,504 996 3,175 1,518 4,032 12,025 NNE 772 730 1,237 2,583 2,689 8,011 NE 3,794 3,851 4,109 3,145 3,723 18,622 ENE 2,025 5,902 4,960 2,600 3,646 19,133 E 440 4,536 8,008 3,395 18,348 34,727 ESE 1,219 25,656 29,265 23,091 26,065 105,296 SE 3,273 53,537 149,808 78,239 42,677 327,534 SSE 567 45,789 247,317 47,662 43,943 385,278 S 1,330 4,144 9,433 15,876 5,988 36,771 SSW 1,709 4,070 5,170 3,929 10,765 25,643 SW 5,707 4,840 3,359 8,759 30,549 53,214 WSW. 5,601 1,969 3,581 6,642 48,293 66,089 W 9 1,904 4,267 3,381 6,727 16,288 WNW 1,358 868 2,102 6,732 15,882 26,942 NW 2,736 2,614 6,787 2,006 5,240 19,383 NNW 1,046 1,145 1,187 1,867 3,081 8,326 ( TOTAL 33,093 162,551 483,765 211,425 272,448 1,163,282 l l n-l ~ Supplemear 4 1 of 1 February 1983 ,O ! v l

. = - RBS ER-OLS () TABLE 2C-14 2020 POPULATION DISTRIBUTION WITHIN 50 MILES OF RIVER BEND STATION Distance (miles) Total Direction 0-10 10-20 20-30 30-40 40-50 0-50 N 1,741 1,163 3,739 1,782 5,371 13,796 NNE 898 851 1,458 2,956 2,952 9,115 NE 4,546 4,621 4,802 3,489 4,127 21,585 ENE 2,422 7,088 5,958 2,838 4,008 22,814 E 524 '5,414 9,067 3,571 20,540 39,116 ESE 1,417 28,455 33,222 28,862 32,156 124,112 SE 3,687 59,178 167,790 93,781 52,389 376,825 SSE 643 50,652 273,578 53,357 52,477 430,707 S 1,466 4,650 10,594 17,323 6,643 40,676 SSW 1,881 4,514 5,666 4,556 12,724 29,341 SW 6,278 5,323 3,756 10,281 35,875 61,513 WSW 6,191 2,164 4,016 7,544 54,860 74,775 W 9 2,104 4,813 3,840 7,637 18,403 WNW 1,570 969 2,315 7,588 17,905 30,347 NW 3,164 3,016 7,808 2,257 5,888 22,133 NNW 1,212 1,332 1,391 2,091 3,349 9,375 TOTAL 37,649 181,494 539,973 246,116 318,901 1,324,133 i l Supplement 4 1 of 1 February 1983 4

RBS ER-OLS ) I TABLE 2C-15 2030 POPULATION DISTRIBUTION WITHIN 50 MILES OF RIVER BEND STATION Distance (miles) Total Direction 0-10 10-20 20-30 30-40 40-50 0-50 N 2,015 1,366 4,492 '2,131 6,017 16,021 4 NNE 1,036 1,002 1,752 3,446 3,278 10,514 NE 5,437 5,545 5,694 3,932 4,651 25,259 ENE 2,899 8,502 7,144 3,131 4,437 26,113 E 630 6,448 10,171 3,796 22,870 43,915 ESE 1,638 31,076 37,138 35,230 38,835 143,917 SE 4,104 64,347 184,972 110,383 63,049 426,855 i SSE 720 55,142 297,846 59,029 61,814 474,551 S 1,612 5,180 11,837 18,949 7,372 49,950 SSW 2,066 4,991 6,222 5,246 14,879 33,404 SW 6,899 5,848 4,196 11,972 41,647 7C 562 WSW 6,829 2,377 4,514 8,606 62,580 84,906 W 11 2,324 5,448 4,381 8,709 20,873 WNW 1,815 1,081 2,549 8,545 20,163 34,153 NW 3,660 3,480 8,993 2,537 6,612 25,282 NNW 1,399 1,548 1,662 2,368 3,667 10,644 TOTAL 42,770 200,257 594,630 283.,682 370,580 1,491,919 4 ( t Supplement 4 1 of 1 February 1983 ~s J ,w--- g nn--.- - -,..,,,,,.,.,,,......,,. ,.m..,,,

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-o N NNW NNE NW WEST FEL I C I ANA PARI Sd WNW t, Francisvi le \\) W gs ' fS S N FI is 5 PO I NTE C0UPEE PAR I SH r New Roads WSW tn RIVER -p E/ p d BA go l J t \\ g / RO \\ f PAF l SW WEST BATON I ROUGE ) PAR IS H f SSW / SSE j S

CX A t ]. NE F l +\\ b ackson s ENE p LEGEND: 1980 POPULATION OF TOWNS JACKSON 3,133 NEW ROADS 3,924 ST. FR ANCISVILLE 1,471 EAST

L I C I ANA PAR I SH j

ESE o i a 3 4 s l I I i 1 1 ST 10 MILES SCALE-MILES TON UGE t iSH SE FIGURE 2C-1 POPULATION SECTORS WITHIN 10 MILES RIVER BEND STATION ENVIRONMENTAL REPORT - OLS SUPPLEMENT 4 FEBRUAR 1983

a N NNW NNE q ADAMS { I \\ COUNTY FRANKLI Q\\ COUNTY ONCORDIA ,. M, .d NW PARISH ,w v WILKIN SON COUNT WNW AVOYELL ES -( MLS SISS IPPI PARIS -/ LOUIS 1 ANA ~ f

/SS/Sg EST FELICIANA m

EAST FELIC f PARISH . Jack on } IT W ".M" 10 20' R I EAST ko^yh ST. LANDRY POINTE COUPEE PA RIS H PARI S H PARISH # 8 ' I* " " ' WEST Rouge i g BATO N

S*
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-N. en / N 3 P loque mine

ASCE Brecut Bridge IBERVILLE sW ST.

M ARTIN PARISH ARISH ) i 1. I ssw sse IBERIA f g PARISH

\\ ^ CX b NE i LMITE COUNTY ENE I LEGEND: 1980 POPULATION AMITE CITY 4,301 , q BAKER 12,865 O BATON ROUGE 219,419 ]ANA I BR E AUX BRIDGE 5,922

[f DENHAM SPRINGS 8,563 E

5 DONA LDSONVIL LE 7,9 O f 4 I . z ct GONZALES 7,287 ST. HELENA p. E JACKSON 3,333 PARISH q NEW ROADS 3,924 l

g m,,,

OPELOUSAS 18,903 0 40 City PLAQUEMINE 7,521 f PORT ALL EN 6,114 ZACHARY 7,297 / ~*

SMSA(STANDARD METROPOLITAN STATISTICAL LIVINGSTON AREA) BOUND A RY PARISH 50 MILES O

5 1,0 2,0 3,0 4,0 s Denham SC ALE-M I L E S Sprines ESE \\.

NSION

"\\* 'ARIS H OnZOles SE FIGURE 2C-2 f Sonv ell 3 POPULATION SECTORS WITHIN 50 MILES RIVER BEND STATION ENVIRONMENTAL REPORT - OLS SUPPLEMENT 4 FEBRUARY 1983 - r

RBS ER-OLS () CHAPTER 2 QUESTIONS AND RESPONSES TABLE OF CONTENTS 1 NRC Supplement Q&R Question No. No. Page No. E470.1 2 2.1-1 E310.7 2 2.1-2 E470.2 2 2.2-1 E290.6 2 2.2-2 E240.1 1 2.3-1 E240.2 1 2.3-2 E240.3 1 2.3-3 E240.4 1 2.3-6 E240.5 2 2.3-7 E240.6 1 2.3-8 E240.7 1 2.3-9 E240.8 1 2.3-10 O E240.9 2 2.3-11 E240.10 1 2.3-12 E240.11 1 2.3-13 E240.12 1 2.3-14 E240.13 1 2.3-15 E240.14 2 2.3-16 E291.1 2 2.3-17 E291.2 2 2.3-18 E291.3 2 2.3-19 E291.4 2 2.3-20 E291.12 2 2.3-21 E240.27 3 2.3-22 E240.28 3 2.3-23 E240.34 3 2.3-24 E291.13 2 2.4-1 E310.9 2 2.5-1 E310.10 4 2.5-2 E451.1 1 2.7-1 E451.2 1 2.7-2 E451.3 2 2.7-3 Supplement 4 Q&R 2-i February 1983 N

RBS ER-OLS CHAPTER 2 QUESTIONS AND RESPONSES TABLE OF CONTENTS NRC Supplement Q&R Question No. No. Page No. E290.1 2 2.9-1 E290.2 4 2.9-2 v.290.3 2 2.9-3 E'90.4 2 2.9-4 E260.15 1 2B-1 E24).32 3 2B-3 E240.33 3 2B-4 O l l Supplement 4 Q&R 2-ii February 1983 O

RBS ER-OLS 1 QUESTION E310.9 (2.5) Identify any impacts to cultural resources which could i potentially result from the operation and maintenance activities related to the plant and transmission-lines.

RESPONSE

_ Refer to Section 5.1.3 for the information requested. 1 1 i 1 j r e L i i l I i 4 t 4 I. l J Supplement 2 Q&R 2.5-1 March 1982 i 4 l

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RBS ER-OLS l QUESTION E310.10 (2.5) Refer to question 311.5 which requested that population data be provided in the English system of miles. In

addition, use the 1980 Census to update the projected population figures presented in Table 2.5-2, Tables 2.5-5 through Table 2.5-10, Tables 2.5-17 through Table 2.5-22.

Also, update Figures 2.5-4 through Figure 2.5-16. Describe the methodology and assumptions used for updating.

RESPONSE

The response to this request is provided in new Appendix 2C. 4 O Supplement 4 Q&R 2.5-2 February 1983 O

t 4 RBS ER-OLS <~ (s) QUESTION E451.3 (2.7.4) The total accuracy of each time-averaged variable should include the errors due to

sensors, processors, recorders, and data reduction.

Provide the error in each hourly averaged variable due to data reduction.

RESPONSE

There are no reduction errors in data collected by a digital data collection system. Temperature, dewpoint, and vertical temperature difference are sampled once per minute as " grab samples." Precipitation is totaled for each minute. Wind speed and wind direction are processed through a 60-second analog filter (the filter errors were considered in the overall errors presented in the ER resulting in minute values. All these minute values are placed on the magnetic tape from which hourly averaged values are determined. Infrequently (approximately 4 percent of the 2-year period), values could not be obtained from the data logger; thus, the strip charts (analog data collection system) were used. There is error in reducing a strip chart trace to produce hourly average values. Analog data reduction errors which were used to determine the total errors in each hourly {T) averaged ~ variable and the total data processing errors, are presented in revised Section 6.4.1.5. l2 s_ () Supplement 2 Q&R 2.7-3 March 1982 V

RBS ER-OLS O l l 2 THIS PAGE INTENTIONALLY BLANK O l Supplement 4 Q&R 2.7-4 February 1983 l l

RBS ER-OLS () QUESTION E290.1 (2.9) Provide a brief listing or discussion of noise-sensitive land uses within three miles of the River Bend Station (i.e., residences,

schools, hospitals,

churches, cemeteries).

Indicate their locations with respect. to the station and with respect to the ambient noise survey sampling locations.

RESPONSE

There are a total-of ten (10) noise-sensitive land uses within three (3) miles of the River Bend site. Figure 2.9-1 has been modified to define and indicate the locations of noise-sensitive land uses and their proximity with respect to the ambient noise measurement locations. OV ({;) supplement 2 Q&R 2.9-1 March 1982

RBS ER-OLS QUESTION E290.2 (2.9) Indicate the kinds of outdoor construction activities that were ongoing at the station during the 1980 sound level survey. Indicate the extent to which any of the sample data may have been influenced by the construction activity.

RESPONSE

The response to this request is provided in revised g Section 2.9. O Supplement 4 Q&R 2.9-2 February 1983 0

A RBS ER-OLS i - /~'\\ CHAPTER 3 PLANT DESCRIPTION 3.1 EXTERNAL APPEARANCE AND PLANT LAYOUT The complex of buildings that make up River Bend Station is j located in a thickly wooded area on a slight rise east of the Mississippi River. The main plant buildings are more than-1.6 km (1 mi) away from US Highway 61, which passes northeast of the 1,352-ha (3,342-acre) GSU property. The dense native growth along the roadside and scattered patches of timber, such as sweetgum, loblolly pine, hickory, Shumard oak, and water oak, screen the station from highway traffic. 2 The highway elevation is about 25 ft above the site grade. As the plant is approached from North Access Road leading off US Highway 61, the buildings are first seen above the

treetops,

.and then the station appears as a composition of 'large, simple concrete masses dominated by the twin cylindrical forms of the reactor building structures. _The. upper portions of the turbine

building, normal switchgear

building, and auxiliary boiler and water treatment building are enclosed in fluted-metal-siding.

These buildings, together with open metal frame structures such as switchyards, yard tanks, and transformers, are painted with ~ a dominant color to provide contrast with the natural color of untextured concrete. The plant exhaust duct. rises about 195 ft -(290 ft msl) above plant grade and is covered by j fluted-metal siding. This duct releases waste gases to the i atmosphere above all other plant structures. Locations and elevations of all plant gaseous release points are shown in Fig. 3.1-1. l The major-plant structures cover approximately 51 ha i isenteredthroughtheofficeandservicebuilding,l2 I and are arranged as shown in Fig. 3.1-2. The (126 acres) station which contains principal personnel space. It is a i three-story building with a facade of bronzed glass to i. reflect the surrounding trees and the sky. The building is j constructed of precast concrete panels, which contrast with the bronzed glass. The reactor building structure housing the steel containment is the dominant feature of this station. The smooth finish of the concrete walls accentuates their curvature which terminates in a shallow dome. This cylindrical structure is a large vertical element which tends to balance the /"% Supplement 2 3.1-1 March 1982 . N, 1 i .-,_..m

RL5 ER-OLS proportions of the

lower, rectangular buildings grouped around it and completes the geometric composition of the station.

The Training

Center, which will also house the Emergency Operations Facility, will be located outside the plant security boundary but on GSU property near the intersection 2

of U.S. Highway 61 and the North Access Road. This basically commercial type building has a " plantation" facade designed to blend with the antebellum culture of the area. Permanent station roads and parking areas are asphalt paved, with lane markings painted in either yellow or white. A spur track from the Illinois Central Gulf Railroad line links the turbine and fuel buildings to the major railroad network for transporting waste products and other materials. The site is landscaped to enhance the appearance of the buildings. Except at the entrances, where grass and shrubs of low profile are used to define walkways, the natural aspect of the wooded slopes and fields of meadow grass is retained. Trees frame vistas as well as baffle utilitarian

areas, where

possible, when consistent with security requirements.

At the conclusion of the construction activities, the facilities used for temporary construction buildings, laydown of equipment, construction switchyard, and parking during the construction stage will be removed and the land restored. The land will be graded and seeded to promote the return of vegetative cover. Sedimentation basins and pits for the disposal of wastes from concrete operations, will be backfilled with soil when full. Areas used for the stockpiling of spoils will be allowed to revert to a natural state. The area occupied by the landfill facility will be reseeded when the facility is no longer required. ' Details of the site restoration plan are provided in Section 4.1. Visual Impact on Surrounding Areas In order to assess visual impact, visually sensitive and intensive land uses within 10 km (6.25 mi) of River Bend Station were identified. These included residential concentrations, major transportation routes, historic sites, and recreational attractions within approximately 10 km and properties listed on the National Register of Historic Places within 16 km (10 mi) of River Bend Station. All are Supplement 4 3.1-2 February 1983

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RBS ER-OLS 3.3 PLANT WATER USE 3.3.1 Water Consumption Fig. 3.3-1 presents a schematic flow diagram of station water use and includes expected

maximum, average, and minimum flowrates.

Systems described are discussed in detail in Sections 3.4, 3.5, and 3.6. 3.3.1.1 Station Cooling Systems The station cooling systems consist of the circulating water system for main condenser cooling, the normal service water system for various station heat exchangers, and the standby service water system used in the event of an accident or during abnormal conditions. Condenser cooling water and normal service water for each unit are cooled by four mechanical-draft cooling towers. The standby service water system operates in conjunction with the standby cooling towers and the water storage facilities of the ultimate heat sink (UHS). A circulating water pump discharge flowrate of 511,560 gpm per unit is required for condenser cooling and tower l blowdown during normal operation. Cooling water is pumped l1 f w) t, from the cooling tower basins through the tube side of each '~' main condenser and then returned to the cooling towers. To maintain the desired condenser circulating water quality, a constant 2,200 gpm of water per unit is discharged as blowdown to the Mississippi River from the circulating water system. To replace water losses resulting from

blowdown, tower

drift, and tower evaporation, makeup water is pumped at an average rate of 13,870 gpm per unit from the 11 Mississippi River to the cooling tower basins through a water treatment system consisting of clarifiers.

Sulfuric acid is added to the makeup water for pH adjustment, and sodium hypochlorite is applied intermittently to the circulating water to prevent fouling of heat exchanger surfaces and other piping by aquatic growth. A sludge dilution tank is provided to receive the clarifier underflow. The sludge is diluted to a solids concentration range of 0.5 percent to 4 percent (by weight) using raw river water at a flowrate of approximately 500 gpm. The diluted mixture is then pumped to the Mississippi River. Normal station service water is pumped from the cooling tower basins to the various station service water heat (% Supplement 1 3.3-1 October 1981 V

RBS ER-OLS exchangers and then returned to the cooling towers. Among the heat exchangers are those whose operation is considered essential to remove heat resulting from a loss-of-coolant accident or ensure a safe shutdown during abnormal conditions. The auxiliary building unit

coolers, containment unit coolers, standby diesel generator

coolers, and main control room air-conditioning water chillers are the essential heat exchangers supplied by the normal service water system.

This system also supplies cooling water to four residual heat removal heat exchangers in the event of reactor shutdown. The normal service water system also supplies cooling water to the nonessential heat exchangers, including reactor plant component cooling water (RPCCW) heat exchangers, turbine plant component cooling water (TPCCW) heat exchangers, hydrogen

coolers, an alternator cooler, turbine lube oil coolers, electrohydraulic control equipment

coolers, air-conditioning water chillers in the turbine and radwaste buildings, and drywell unit coolers.

A normal flowrate of 50,900 gpm per unit is required for service water. An additional flow of 11,600 gpm per unit is required if the residual heat removal heat exchangers are in operation. The extreme minimum river flow near the site is about 100,000 cfs, and sufficient makeup water is available on a continuous basis for the operation of station cooling systems. Each unit has a complete standby service water system and UHS complex consisting of a mechanical-draft cooling

tower, 4

with a 6,500,000 gallon water storage facility. A maximum flow of approximately 35,000 gpm is required to provide adequate cooling for essential equipment. System cooling requirements are reduced to approximately 22,000 gpm after the first day of operation, when a large portion of reactor residual heat is removed. Standby service water can be supplied to those essential components cooled by the normal service water system and the residual heat removal heat exchangers in the event that the normal service water system or normal cooling towers are inoperative. Each standby cooling tower and UHS can also be used to dissipate residual heat produced when a reactor is shut down for refueling and to provide makeup water to the fuel pool. Interfaces between the normal cooling water supply and the standby service water system allow for automatic isolation of the normal service water system and initiation of standby cooling upon loss of normal cooling. Both service water Supplement 4 3.3-2 February 1983

RBS ER-OLS (" TABLE 3.5-5 (Cont) V} B. Activation / Corrosion Products (independent of failed fuel) M.P.C.(1) D.C. Radio (Conc. in Water) (Conc. in Discharge) Dc/mpc Nuclide uCi/ml Canal uCi/cc (50,000 uCi/sec) Na-24 2.0-04 1.7-09 8.5-06 P-32 2.0-05 1.3-10 ~6.5-06 Cr-51 2.0-03 4.0-09 2.0-06 Mn-54 1.0-04 4.8-11 4.8-07 Mn-56 1.0-04 1.3-09 1.3-05 Fe-55 8.0-04 6.8-10 8.5-07 Fe-59 6.0-05 2.0-11 3.3-07 Co-58 1.0-04 1.4-10 1.4-06 Co-60 5.0-05 2.7-10 5.4-06 Ni-63 3.0-05~ 6.9-13 2.3-08 -Ni-65 1.0-04 7.5-12 7.5-08 Cu-64 3.0-04 4.4-09 1.5-05 Zn-65 1.0-04 1.4-10 1.4-06 Zn-69m 7.0-05 3.2-10 4.6-06 Zr-95 6.0-05 5.4-12 9.0-08 Zr-97 2.0-05 1.1-12 5.5-08 s V) I Nb-95 1.0-04 5.3-12 5.3-08 Ag-110m 3.0-05 6.8-13 2.3-08 W-187 7.0-05 7.5-11 1.1-06 H-3 3.0-03 1.0-05 3.3-03 l4 l '2' Source: 10CFR20, Appendix B, Table II, Column 2. (2) Exponents to Base 10 such as 3 x 10-6 are listed as 3.0-06. Supplement 4 2 of 2 February 1983 mU

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o G'c-- + ;y: ( 'n i, .s _i p 'y p a f, ,9 ~ ~ ..,..., f r,/ ', \\ .9 y . '/- G_'; <.] , g m%gV' l-Q 7,y,. ~ 7 ' cy ^y ep^g cW FIGURE 5.3-38 , k g ' M. - ly g d, g %g S V Y 6 M_ A // h D MAXIMUM HOURLY AIRBORNE SALT )f^ gy$7i ? ${ g CONCENTRATION (ug/m3) FROM ROUND , L )T p d'r /7 t W-MECHANICAL DRAFT COOLING TOWERS u-s ,A s o_ M' y,dgig^L j3 <d-a. g,psC RIVER BEND STATION x,f 4'L[. I O.nJJ d'y ~4 ENVIRONMENTAL REPORT - OLS SUPPLEMENT 4 FEBRUARY 1983 l RBS ER-OLS [D \\ TABLE OF CONTENTS Chapter Section Title Volume 1 INTRODUCTION 1 1.1 The Proposed Project 1 1.2 Status of Reviews and Approvals 1 1.3 Substantive Informational Changes from Construction Permit Stage 1 2 ENVIRONMENTAL DESCRIPTIONS 1 2.1 Description of the Station Location 1 2.2 Land 1 2.3 Water 1 2.4 Ecology 1 2.5 Socioeconomics 2 2.6 Geology 2 2.7 Meteorology 2 2.8 Ambient Air Quality 2 2.9 Ambient Noise 2 2.10 Related Federal Project Activities 2 APPENDICES 2A, 2B, and 2C 3 ( 3 PLANT DESCRIPTION 3 (,}j 3.1 External Appearance and Plant Layout 3 3.2 Reactor Steam - Electric System 3 3.3 Plant Water Use 3 3.4 Cooling System 3 3.5 Radioactive Waste Management Systems 3 3.6 Nonradioactive Waste Systems 3 3.7 Power Transmission Systems 3 13. 8 Transportation of Radioactive Materials 3 4 ENVIRONMENTAL IMPACTS OF CONSTRUCTION 3 4.1 Land Use Impacts 3 4.2 Hydrological Alterations and Water Use Impacts 3 4.3 Ecological Impacts 3 4.4. Socioeconomic Impacts 3 4.5 Radiation Exposure to Construction Workers 3 4.6 Measures and Controls to Limit Adverse Impacts During Construction 3 (^ Supplement 4 i February 1983 L . ~. - 6 RBS ER-OLS TABLE OF CONTENTS Chapter Section Title Volume 5 ENVIRONMENTAL IMPACTS OF STATION 3 OPERATION 3 5.1 Land Use Impacts 3 5.2 Hydrological Alterations, Plant Water Supply, and Water Use Impacts 3 5.3 Cooling System Impacts 3 5.4 Radiological Impacts of Normal Operation 4 5.5 Nonradioactive Waste System Impacts 4 5.6 Transmission System Impacts 4 5.7 Uranium Fuel Cycle Impacts 4 5.8 Sccioeconomic Impacts 4 5.9 Decommissioning 4 5.10 Measures and Controls to Limit Adverse Impacts During Operation 4 APPENDIX 5A 4 6 ENVIRONMENTAL MEASUREMENTS AND MONITORING PROGRAMS 4 6.1 Thermal 4 6.2 Radiological 4 6.3 Hydrological 4 6.4 Meteorological 4 6.5 Biological 4 6.6 Chemical 4 6.7 other Monitoring Programs 4 7 ENVIRONMENTAL IMPACTS OF POSTULATED ACCIDENTS INVOLVING RADIOACTIVE MATERIALS 4 7.1 Plant Accidents 4 7.2 Transportation Accidents 4 8 THE NEED FOR THE PLANT 4 4 9 ALTERNATIVES TO THE PROJECT 4 Supplement 4 ii February 1983 RBS ER-OLS [') Concentrations of radionuclides accumulate in vegetation- 'v growing year round in the vicinity of the site. The model used for estimating the transfer of radionuclides from the atmosphere to vegetation considers deposition on foliage and uptake from soil for all radioiodines and particulates, - except tritium and carbon-14. The concentration of carbon-14 in vegetation is estimated by assuming that its-ratio to the natural carbon in the vegetation is the same as the ratio' of carbon-14 to natural carbon in the atmosphere surrounding the vegetation. The concentration of tritium in vegetation is calculated from its concentration in water vapor surrounding the vegetation. Vegetation is assumed to be exposed to station effluents for 60 days before being picked during the growing season and has an agricultural productivity yield of 2 kg/sq m. Table 5.4-5 lists the calculated concentration of radionuclides in vegetation grown at the location of the maximum individual resident's garden, 1,260 m northwest of the site. Foliage retention factors of 0.2 for particulates and 1.0 for elemental radiciodines from airborne deposition are

~~used, as recommended in Regulatory Guide 1.109.~~

The annual average absolute humidity for this area is estimated to be 12.9 g/cu m. 5.4.3 Dose Rate Estimates for Man f(, Calculated doses tothemaximumoffsiteindividualandthel" radius year 2010 population are based on the gaseous 50-mi and liquid releases shown in Section 3.5. The mathematical models and assumptions used to calculate these doses are given in Appendix SA. 5.4.3.1 Liquid Pathways Tables 5.4-6 through 5.4-9 present the calculated doses to the maximum individual from liquid pathways. The tables present the calculated total body and organ doses for the l four age groups - adult, teen, child, and infant. Table 5.4-10 presents a comparison of the maximum individual calculated doses from liquid effluents to the design objectives of Appendix I limits (1) 5.4.3.2 Gaseous Pathways Tables 5.4-11 through 5.4-21 present the calculated doses to maximum individuals from gaseous pathways. These tables present the calculated total body and organ doses for the four age groups -

adult, teen,

child, and infant.

The analysis was performed for locaticns where an existing /~N Supplement 4 5.4-7 February 1983 r 1'u-i e y- ,7 .m -.. ~ - - - RBS ER-OLS resident, milk cow, and beef animal was identified (8) Each analysis considers pathways for the specified location. For

example, if a garden and a beef animal existed at the same farm, the maximum individuals residing at that farm are analyzed for submersion, inhalation, ground deposition, ingestion of vegetation, and consumption of beef meat pathways.

It was assumed that a vegetable garden could exist at each location. The. consumption of deer and grey squirrel was also considered. Tables 5.4-11 through 5.4-14 present the doses to the maximum individuals living at the estimated maximum residence location. This location was assumed to be the site of the maximum beef animal. Tables 5.4-15 through 5.4-18 present the estimated doses to the maximum individuals living at the maximum milk cow location. Table 5.4-19 presents estimated doses to individuals from the consumption of cow milk from a hypothetical cow grazing at the site boundary. Tables 5.4-20 and 5.4-21 present dosec to individuals from consumption of deer meat and squirrel meat, respectively. Table 5.4-10 presents the comparison of the maximum individual calculated doses from gaseous effluents to the design objectives of Appendix I limits (2) Annual calculated gamma air dose and beta air dose values were determined and are compared to the 10CFR50 design objective limit values in Table 5.4-10(2) 5.4.3.3 Direct Radiation from Facility The station is designed so that neither solid nor liquid radioactive wastes are stored outside shielded buildings, thus limiting the maximum dose rate at the property boundary to 1 mrem /yr. 5.4.3.4 Annual Population Doses 5.4.3.4.1 50-mi Radius Population Doses u Table 5.4-22 presents the calculated annual total body and thyroid doses from gaseous and liquid pathways to the population projected for the year 2010 which reside within an 50-mi radius of the site. Supplement 4 5.4-8 February 1983 O RBS ER-OLS m ( ) 5.4.3.4.2 Contiguous U.S. Population Doses Population dose commitments are calculated for all (Regulatory l4 employing individuals living within 50 mi of the facility the same models used for individual doses Guide 1.109). In addition, population doses associated with the export of food crops produced within the 50-mi region l4 and the atmospheric and hydrospheric transport of the more mobile effluent species, such as noble gases, tritium, and carbon-14, have been considered. Equations from the NRC Computer Code GASPAR and LADTAP were used to calculate the doses to contiguous U.S. population, shown in Table 5.4-22. 5.4.3.4.2.1 Noble Gas Effluents itisassumedthatl" reaches the Beyond 50 mi, and until the effluent northeastern corner of the United States. all the noble gases are dispersed uniformly in the lowest 1,000 m of the atmosphere. Decay in transit was also considered. Beyond this point, noble gases having a half-life greater than 1 yr (e.g., Kr-85) were assumed to mix completely in the troposphere of the world with no removal mechanisms operating. Transfer of tropospheric air between + the northern and southern hemispheres, although inhibited by wind patterns in the equatorial

~~region, is considered to yield a~~

hemisphere average tropospheric residence time of ("')s about 2 yr with respect to hemispheric mixing. Since this s time constant is quite short with respect to the expected midpoint of plant life (20 yr), mixing in both hemispheres can be assumed for evaluations over the life of the nuclear facility. This additional population dose commitment to the U.S. population was evaluated. 5.4.3.4.2.2 Iodines and Particulates Released to the Atmosphere Effluent nuclides in this category deposit onto the ground as the effluent moves downwind, which continuously reduces thedepositionmodelinRegulatoryGuide1.111l4 remaining in the plume. Within 50 mi of the concentration the facility, was used in conjunction with the dose models in Regulatory Guide 1.109. Site-specific data concerning production, within50miofthel4 transport, and consumption of foods reactor were used. Excess food not consumed within the southern l4 50-mi distance was accounted

~~for, and additional food production and consumption representative of the part of the country was assumed.~~

Doses obtained in this manner were then assumed to be received by the number of individuals living within the direction sector and distance previously described. The population density in this sector ./ ) Supplement 4 5.4-9 February 1983 kJ d my --m----m-- y- .,z- ,y -m-- .---.-e RBS ER-OLS is taken to be representative of the eastern United States, which is about 160 people /sq mi. 5.4.3.4.2.3 Carbon-14 and Tritium Released to the Atmosphere Carbon-14 and tritium were assumed to disperse without deposition in the same manner as Kr-85 over land.

~~However, they do interact with the oceans.~~

This causes the carbon-14 to be removed with an atmospheric. residence time of 4 to 6 yr with the oceans being the major sink. From this, the equilibrium ratio of the carbon-14 to natural carbon in the atmosphere was determined. This same ratio was then assumed to exist in man so that the dose received by the entire population of the U.S. could be estimated. Tritium was assumed to mix uniformly in the world's hydrosphere, which was assumed to include all the water in the atmosphere and in the upper 70 m of the oceans. With this

~~model, the equilibrium ratio of tritium to hydrogen in the environment can be calculated.~~

~~The same ratio was assumed to exist in~~

~~man, and was used to calculate the population dose, in the same manner as with carbon-14.~~

5.4.3.4.2.4 Liquid Effluents lBeyond 50 mi, it was assumed that all liquid effluent 4 nuclides except tritium have deposited on the sediments so they make no further contribution to the population exposures. The tritium was assumed to mix uniformly in the world's hydrosphere and to result in an exposure to the U.S. population in the same manner as discussed for tritium in gaseous effluents. Using the preceding approaches, the calculated U.S. population doses were 45 manrem to the whole body and 48 nanrem to the thyroid. 5.4.4 Impacts to Man 5.4.4.1 Maximum Individual Doses The calculated annual radiation doses to the maximum individual from liquid and gaseous pathways are presented in Tables 5.4-6 through 5.4-9 and Tables 5.4-11 through 5.4-21. As can be seen from these tables and Table 5.4-10, the calculated annual radiation doses are below the 10CFR50, Appendix I design objectives <ti, For the liquid

~~releases, it was assumed that the maximum individual obtains drinking water from the downstream public Supplement 4 5.4-10 February 1983~~

RBS ER-OLS / / water supply. The maximum individual was assumed to consume 'w/ fish and invertebrates caught at the edge of the initial mixing zone. This location was also used in calculating the dose from swimming. Boating was assumed to occur in the outfall area. Shoreline recreation was analyzed at the closest shore of the Mississippi River. 5.4.4.1.1 Liquid Pathways The calculated maximum organ dose to the maximum individual from liquid pathways was 0.8 mrem /yr to a child's thyroid. This dose was primarily a result of the consumption of fish. It is assumed that the child consumes 6.9 kg of fish per year which was caught at the edge of the initial mixing zone. The maximum annual dose resulting from the consumption of duck obtained from the edge of the initial mixing zone was 0.0017 mrem to the adult bone. 5.4.4.1.2 Radioiodine and Particulate Pathways For the gaseous releases, a separate analysis was performed for each location of the maximum residence, milk

~~cow, and beef animal.~~

Each location was analyzed for submersion, /"'} inhalation, ground deposition, and ingestion of vegetation. (_j The consumption of deer and grey squirrel was also considered. The calculated dose to the maximum individual from gaseous pathways was 4.5 mrem /yr to an infant's thyroid. It represents a hypothetical infant who lived at the residence corresponding to the maximum cow location 1.3 km north-northwest. A majoritp of this. dose is due to the consumption of cow milk. The thyroid dose from the ground deposition is conservatively assumed to be equivalent to the calculated total body dose as directed by Regulatory Guide 1.109. 5.4.1.1.3 Immersion Doses from Noble Gases The doses from immersion in noble gas effluents are presented in Table 5.4-10. 5.4.4.2 Population Dose The calculated annual doses for the population residing l4 within a 50-mi radius of the site are presented in Table 5.4-22. For the liquid effluents, the calculated whole body and thyroid doses are 0.44 and 0.068 manrem per l4 [~ Supplement 4 5.4-11 February 1983 D) RBS ER-OLS

~~year, respectively.~~

The calculated doses from gaseous lpathwaysare 1.8 manrem/yr whole body and 4.1 manrem/yr 4 thyroid. These doses were calculated for a projected population in the year 2010 of 1,163,282 people within 50 mi of the site. The milk, meat, and vegetation 50-mi radius crop yield, as well as the 50-mi radius sport fish

~~harvest, are presented in Appendix SA.~~

Annual population doses to the contiguous U.S. from liquid and gaseous pathways are given in Table 5.4-22. The ,l calculated doses to the U.S. population are 45 manrem to the I whole body and 48 manrem to the thyroid. 5.4.5 Impacts to Biota Other than Man The exposure pathways and the concentrations of radionuclides in the environment are discussed in previous sections. The doses to terrestrial and aquatic organisms other than man resulting from these radionuclides are presented in the following sections and tables. Calculated internal and external dose rates to biota are based on the model and assumptions presented in Appendix SA. 5.4.5.1 Doses through Gaseous Pathways Tables 5.4-23 and 5.4-24 present the calculated external and h internal doses, respectively, to biota other than man from gaseous pathways. These doses are calculated for a terrestrial animal residing at the restricted area boundary. The external dose rates for terrestrial animals are based on methodology used to calculate external dose rates for man. 5.4.5.2 Doses through Liquid Pathways Table 5.4-23 shows the maximum calculated external doses from submersion in water at the edge of the initial mixing zone and exposure to sediments at the closest accessible shoreline from the point of discharge. Table 5.4-24 shows the maximum calculated internal doses due to the bioaccumulati on process. 5.4.5.3 Direct Radiation Deses The station is designed

~~o that neither solid nor liquid radioactive wastes are stored outside shielded buildings, thus limiting the maximum dose rate to 1 mrad /yr.~~

The dose rates to biota other than man are expressed in units of millirads per year rather than millirems per year, since millirem is the unit used specifically to express the effect of radiation on human tissue. This external exposure rate Supplement 4 5.4-12 February 1983 (* \\. l RBS ER-OLS I TABLE 5.4-2 i ESTIMATED RADIONUCLIDE CONCENTRATIONS (PCI/L) IN EFFLUENT (a3 AND RECEIVING WATER UNITS 1 AND 2 closest Edge of Peoples Water l Discharge Accessible Initial Service company Isotope Concentration shoreline (23 Mixine Zonet 3 Donaldsonville(33 H-3 1.03+04 9.09+02 9.09+02 4.16-01 + NA-24 1.68+00 1.48-01 1.48-01 1.02-05 P-32 1.23-01 1.09-02 1.09-02 4.58-06 CR-51 3.93+00 3.46-01 3.46-01 1.52-04 I MN-54 4.71-02 4.15-03 4.15-03 1.89-06 MH-56 1.23+00 1.09-01 1.09-01 7.45-10 FE-55 6.73-01 5.93-02 5.93-02 2.71-05 FE-59 2.02-02 1.78-03 1.78-03 7.93-07 CO-58 1.35-01 1.19-02 1.19-02 5.34-06 CO-60 2.69-01 2.37-02 2.37-02 1.09-05 NI-63 6.73-04 5.93-05 5.93-05 2.72-08 NI-65 7.41-03 6.52-04 6.52-04 3.95-12 CU-64 4.38+00 3.85-01 3.85-01 1.90-05 2N-65 1.35-01 -1.19-02 1.19-02 5.41-06 i ZN-69M 3.14-01 2.77-02 2.77-02 1.61-06 i BR-83 1.80-01 1.58-02 1.58-02 4.75-11 BR-84 1.35-02 1.19-03 1.19-03 1.15-30 EE-85 2.02-05 1.78-06 1.78-06

0. 0 RB-89 5.05-02 4.45-03 4.45-03 1.46-55 SR-89 6.62-02 5.83-03 5.83-03 2.61-06 SR-90 4.71-03 4.15-04 4.15-04 1.90-07 SR-91 4.38-01 3.85-02 3.85-02 8.62-07 SR-92 2.69-01 2.37-02 2.37-02 2.78-10 Y-91 3.14-02 2.77-03 2.77-03 1.24-06 Y-92 5.39-01 4.74-02 4.74-02 6.63-09 Y-93 4.71-01 4.15-02 4.15-02 1.15-06 ZR-95 5.28-03 4.64-04 4.64-04 2.09-07 2R-97 1.10-03 9.68-05 9.68-05 8.02-09 NB-95 5.16-03 4.55-04 4.55-04 2.01-07 Mo-99 8.64-01 7.61-02 7.61-02 2.26-05 i

~~TC-99M 1.35+00 1.19-01 1.19-01 4.70-07 TC-101 2.58-02 2.27-03 2.27-03 2.91-59 RU-103 1.35-02 1.19-03 1.19-03 5.27-07 RU-105 9.54-02 8.40-03 8.40-03~~

~~6. 12-09~~

] RU-106 2.02-03 1.78-04 1.78-04 8.12-08 AG-110M 6.73-04 5.93-05 5.93-05 2.70-08 TE-129M 2.58-02 2.27-03 2.27-03 1.00-06 d TE-131M 2.92-02 2.57-03 2.57-03 4.53-07 TE-132 4.71-03 4.15-04 4.15-04 1.32-07 I-131 2.81+00 2.47-01 2.47-01 9.76-05 ] Supplement 4 1 of 2 February 1983 i O O ? RBS EE-OLS a TABLE 5.4-6 ANNUAL DOSES TO MAXIMUM INDIVIDUAL IN THE ADULT GROUP FROM LIQUID EFFLUENTS Maximum Individual Liquid Pathways Annual Dose (arem/yr) Total Pathway Body Skin Bone Liver Thyroid Kidney Lung GI-Tr a ct Potable water 4.2-05

~~0. 0 1.1-05 4.6-05 2.1-04 3.8-05 3.3-05 3.5-05~~

= Fish consumption 1.5-02 s 0.0 5.7-02 2.2-02 7.2-01 1.2-02 3.5-03 2.4-02 Invrt. consumption 5.5-03 0.0 1.4-02 1.5-02 4.3-02 4.6-03 1.9-03 4.1-02 Shoreline recreation ' 1.3-03 1.5-03 1.3-03 1.3-03 1.3-03 1.3-03 1.3-03 1.3-03 Fresh vegetation 8.0-06

~~0. 0 5.6-06 9.9-06 2.9-05 5.3-06 3.6-06 3.0-06 Stored vegetation 6.3-05 0.0 4.1-05 7.8-05 2.4-05 4.1-05~~

~~-2.9-05 2.6-05 Duck consumption 7.7-05~~

~~0. 0 1.7-03 1.3-04 2.5-06 1.2-05 1.5-06 2.0-04 i~~

~~Swimming exposure 5.3-05 7.2-05 5.3-05 5.3-05 5.3-05 5.3-05 5.3-05 5.3-05 Boating exposure 1.7-04 2.3-04 1.7-04 1.7-04 1.7-04 1.7-04 1.7-04~~

~~1. 7-04 TOTAL DOSE 2.2-02 1.8-03 7.4-02 3.9-02 7.6-01 1.8-02 7.0-03 7.6-01 i~~

i i NOTE: 2. 6-05 = 2.6 x 10-5 l Supplement 4 1 of 1 February 1963 I - - _ - ~ _ _ .. _ _ -... _.. ~.. _ _.... s 6 I w i RBS ER-OLS l f TABLE 5.4-7 F ANNUAL DOSES TO MAXIMUM INDIVIDUAL IN THE TEEN GROUP l FROM LIQUID EFFLUENTS [ Marimum Individual Liquid Patt. ways Annual Dose terem/yri Pathway B ody Skin Pone Liver Thyroid Kidney Lung GI-Itagt Potacle water 2.8-05 0.0 1.0-05 3.6-05 1.6-04 3.4-05 2.4-05 2.5-05 Fish consumption 1.1-02 0.0 6.1-02 2.2-02 6.8-01 1.5-02 3.4-03 1.9-02 4 Invrt. cons umption 4.5-03

~~0. 0 1.5-02 1.5-02 4.1-02 5.7-03 2.1-03 3.0-02 f~~

Shoreline recreation 7.2-03 8.4-03 7.2-03 7.2-03 7.2-03 7.2-03 7.2-03 7.2-03 Fresh vegetation 4.5-06 0.0 5.0-06 8.2-05 2.3-05 8.5-06 2.7-06 2.3-06 i y Stored vegetation 6.4-05 0.0 6.8-05 1.2-04 3.0-05 9.3-05 4.0-05 3.2-05 4 l Duck consumption 6.2-05

~~0. 0 1.4-03 1.0-04 1.9-06 8.4-05 1.4-06 1.4-04 l~~

f Swimming exposure 3.0-04 4.1-04 3.0-04 3.0-04 3.0-04 3.0-04 3.0-04 3.0-04 Boating exposure 1.7-04 2.3-04 1.7-04 1.7-04 1.7-04 1.7-04 1.7-04 1.7-04 TOTAL DOSE 2.3-02 9.0-03 8.5-02 4.5-02 7.3-01 2.9-02 1.3-02 5.7-02 l4 I i [ i 9 I L i t NOTE:

~~1. 7-0 5 = 1.7 x 10-5 i~~

Supplement 4 1 of 1 Feb ruary 1983 r d RBS ER-OLS } TABLE 5.4-8 ANNUAL DOSES TO MAXIMUM INDIVIDUAL IN THE CNILC GROUP FROM LIQUID EFFLUENTS I Maximum Individual Liquid Pathways Annual Dose (mres/yrt Total j l Pathway Body _ Skin Bone Liver Thyroid Kid ney Lung GI-7 tact Potatle water 4.9-05 0.0 2.9-05 7.0-05 4.3-04 5.4-05 4.6-05 4.6-05 4 i Fish consumption 7.9-03

~~0. 0 7.8-02 2.0-02 7.5-01 1.1-02 2.0-03 9.1-03 j~~

~~Invrt. consumption 4.2-03 0.0 2.0-02 1.3-02 4.7-02 3.7-03 1.9-03 1.6-02 I Shoreline recreation 1.5-03 1.8-03 1.5-03 1.5-03 1.5-03 1.5-03 1.5-03 1.5-03 l Fresh vegetation 3.8-06~~

0. 0 8.7-06 1.0-05 3.4-05 5.0-06

3. 1- 06 2.5-06

~~. Stored vegetation 7.3-05~~

~~0. 0 1.6-04 2.0-04 4.8-05 9.3-05 6.2-05 4.7-05 i~~

Duck consumption 5.8-05 0.0 1.4-03 7.6-05 1.5-06 5.4-06 8.5-07 4.1-05 Swimming exposure 1.9-04 2.5-04 1.9-04 1.9-04 1.9-04 1.9-04 1.9-04 1.9-04 Boating exposure 9.7-05 1.3-04 9.7-05 9.7-05 9.7-05 9.7-05 9.7-05 9.7-05 I l' TOTAL DOSE 1.4-02 2.2-03 1.0-01 3.5-02 8.0-01 1.7-02 6.6-03 2.7-G2 4 l 1 i 1 1 NOTE: 2. 8-0 5 = 2.8 x 10-5 Supplement 4 1 of 1 February 1983 i ..__m._..__ ._.---__--._._.-.m.___ 4 l 1 i i l RBS ER-OIA TABLE 5.4-9 ANNUAL DOSES TO MAXIMUM INDIVIDUAL IN THE INFANT GROUP FROM LIQUID EFFLUENTS Maximum Individual Liquid Pathways Annual Dose f a re m/yrt Total Pathway Body Skin Bone Liver Thyroid Kidney Lura GI-Tr agt I l l Potable water 4.7-05 M 8.1-05 7.6-05 6.5-04 5.4-05 4.6-05. 4.4-05 j s j TOTAL DOSE 4.7-05 0.0 8.1-05 7.6-05 6.5-04 5.4-05 4.6-05 4.4-05 f i l i i 3 l i l t ) I j i i 1 t f 1 l NOTE: 2. 6-0 5 = 2.6 x 10-5 lj Supplement 4 1 of 1 February 1983 1 ~ - -. RBS ER-OLS (\\ TABLE 5.4-22 CALCULATED POPULATION DOSE COMMITMENT l4 50 mi POPULATION DOSE Annual Dose per Reactor Unit Total Body Thyroid (manrem) (manrem) Natural radiation background (1' 1.2+05 Liquid effluents c2> 4.4-01 6.8-02 y Noble gas effluents 8.0-01 8.0-01 Rac'ioiodines and particulates < 3 > 1.0+00 3.3+00 CONTIGUOUS U.S. POPULATION DOSE Annual Dose per Reactor Unit Total Body Thyroid (manrem) (manrem) 7-sg Liquid effluents (28 4.4-01 6.9-02 Noble gas effluents 1.3+00 1.8+00 4 Radioiodines and particulates<3) 4.3+01 4.6+01 NOTE: 8.8+04 = 8.8 x 104 '1' Natural Radiation Exposure in the United States. U. S. Environ-mental Protection Agency, ORP-SID-72-1 (June 1972); using the average state background dose (100 mrem /yr) and year 2010 l. projected population of 1,163,282. I '2'The radiological doses presented in this table for the liquid t effluents are based on two-unit operation. (Refer to Table 5.4-10, Note 1, for further clarification). The per reactor unit values would be approximately one-half the two-unit operation values. (3' Carbon-14 and tritium have been added to this category. Supplement 4 1 of 1 February 1983 OO ngd'f'y ,gry~ tsyg,g9 =wt g[y.pf. d ~x 64 E C ., g v og& l g 3 -} > t, i 3% r \\ q i O .+

~~K_. ~ qf ii(1 i~~

~~u a. \\ } fn,.,g j4 'c . % L< y,~~

q[Q

[. j a ((

~~4 l >.s ^O. .. NhA NV '#ip Er~~

~~g" g.;.! >~~

k l i,. J :Qj,:'y 4' i '., .n, e s p N j ' ma_ y n u, a r%' $r?n x ) i1 1 e, i 1 n , m ') y+hr s%jm*-3,4 y l '['J %I b .h ' y w hli 't t. ?'s > d{ W c. a &, %g l+ " + ! ~'+ N-s 4 yf i A,. t ',dnwZ [0T[ %N 'A. :y,'h

w[

bh ) n' ~ .s l z a ,y f l Y'r,j' . k ;,tf \\ i ('(, q ~ 4 - & x? h f f ' mf ' w;. f ^f p>,s 7 hsl ?, )4,.Ve? do f n M> qm};f v1c; p. f m<gg%g ~ _ g 7, s'; .m ,,..,.; q - pyw. ~.4 j , x y, r w pt 4.. d .o g u_r / h*"" j e k'5 ($1 ( ur, g ~ > cl : l ,~ m' ?g >' E ~ I., 1[ft,.;x,A f 9

~~q l~~

~~~ 4.'; . g~/h R~?f~p'[}jS/ IWh l a o m d l . j % ' 'l, i L~~

f'

~~,g..- ~r/> 9.. s. c( ') \\; 1\\ ' pW=g ' y L ' Q. (higf - m 'l j' (~~

?f

~~\\y I $ / l.'fNkY)p> drdhh,g.,9%hkhv6dh-b? , +,; 1 < a. gg gggw l l i f _} "u %.t.p. 'f r-Q NOTES: ('gf'~~

~~1. VERTICAL DATUM:~~

~~h [f.'h[h,,, MEAN SEA LEVEL AS ESTABLISHED BY U.S. COAST AND GEODETIC SURVEY y /i .m . (P4 [ 9 O~~

~~2. DISTANCE FROM CENTERLINE REACTOR No. I q / f.2 'O[ ~~~

3.LON VALUES: LEO VALUES + 6 dB 369/5' f ~, $d,j/ 'N TO PROPERTY BOUND = 3035.15' ,7[;d l/J1 'h' ^U /,d [) J ' /d,r. 4 FOR CALCULATED LEVELS WITH TREE /.. W } M.' 8 7 ATTENUATION SEE TABLE 5.8-1 Al ** /. f ( / sy i g @ NEAREST RESIDENCE AFFECTED '$[ [,L. BY STATloN NolSE .M ' ' v. ? ' ,1. s, ? /d J' i; }[ : ~ [ [ (. 'l L Y .L-

~~'5/~~

.jf' + I-o 500 1000 isoo 2000 2500 ['@,[f . SN l i FEET ~ t i j ') '.55 '.t 45 40 ,-di J. wJ, m d f'? -[~c ) g?fq'W%,\\,d-(~ 3P i %@&fA y?,.f:y : ?'? ? '?*? *? i )i rN METERS L ~ N.j U.y N Q }ln ; V y.- 4 i )+ ,o c. %f y'. ik' p

~~d. ' ' @y :;,[,,'~~

a 4-kb?f j j'I, fu:gf&' sQvb y k 4>.rW,,g FIGURE 5.8 -I -]fx STATION SOUND LEVEL CONTOURS ~j g (dBA Leq VALUES) = + RIVER BEND STATION l ENVIRONMENTAL REPORT-OLS l SUPPLEMENT 4 FEBRUMiY7583 RBS ER-OLS (J} APPEbmIX SA DOSE CALCULATION MODELS AND ASSUMPTIONS Calculation of dose rates to biota other than man was performed by means of the computer programs ARRRG and CRITER(18, developed at the Pacific Northwest Laboratory of Battelle Memorial Institute under contract to the Atomic Energy Commission (AEC) currently the U.S. Nuclear Regulatory Commission (USNRC). The calculation of the dose rate to white tailed deer and grey squirrel and the resultant dose to the maximum individual from the consumption of these animals was performed using SWEC's computer code BAMBIE which employs the methodology of CRITER and Regulatory Guide 1.109, Revision 1(1,2> Except where noted, the calculation of doses to man was performed using the methodology described in Regulatory Guide 1.109, Revision 1. Bioaccumulation factors used in ARRRG and CRITER have been updated to correspond to the latest published values in Regulatory Guide 1.109, Revision O (plants), and Regulatory Guide 1.109, Revision 1 'all others)<2> See Section 5.4.2.3.1 for additional information en bioaccumulation factor usage. A summary of the dose models and a list of assumptions used (~3 for the site are contained in this appendix and Tables SA-1 ( ) through SA-4. Internal Doses to Aquatic Organisms Aquatic organisms were considered to receive an internal dose rate from uptake and concentration of radiochemicals in the water and from exposure through the food chain. Dose rates to primary organisms were calculated directly from radioisotopic concentrations in the discharge water. The dose rate through the food chain was estimated for secondary organisms such as muskrats and raccoons feeding on primary organisms whose radionuclide content was estimated in the first calculation. Equations used by CRITER for these calculations are as i follows: (DR) = AE bi (5A-1) (~') Supplement 4 5A-1 February 1983 \\m) l l RBS ER-OLS i where: (DR)g = Dose rate for radionuclide i (mrad /yri Eg = Effective absorbed energy, MeV/ dis in organ of interest bi = Specific body burden of nuclide 1 (pCi/kg) \\ dis-Kg-mrad A = Conversion factor = 0.0187 PCi-yr-MeV b. = C. B. 1 iw 1 where: C, = Concentration of nuclide i in water (pCi/1) 1 Bf = Bioaccumulation factor for nuclide 1 (pCi/kg per pCi/1) The concentration in water C is calculated from: fy ORMiip 1,119 exP (-A tp) C = i iw F (5A-2) where: Q. = Release rate of nuclide 1 ( C.'./yr ) 1 R. = Reconcentration factor to estimate recycling of 1 effluent dimensionless M = Mixing ratio at point of exposure (1/ dilution P factor) F = Flow rate of the liquid effluent (cu ft/sec) A = Radiological decay constant of nuclide 1 (hr-1) i t = Transit time for nuclides to reach point of P exposure (hr) 1,119 = Constant to convert Ci/yr per cu ft/see to pCi/l Supplement 4 5A-2 February 1983 RBS ER-OLS rfy/ The total body dose rate to a secondary organism was calculated asti): DR'i = 0.365 b P'D'i g (5A-3) where: DR'i Total body dose rate to secondary organisms = due to nuclide i (mrad /yr) 0.365 = Kg-day /g-yr

~~b. = Specific body burden of nuclide i (pCi/kg) 1 P'~~

Consumption rate of primary organisms by the = secondary organism (g/ day) 70,000 D (man) E 1 g 1 E. (man) m' 1 and D = Total body dose conversion factor for man i(man) for radionuclide 1 (mrem /pC1) E.(man) Effective absorbed energy for man for = 1 radionuclide 1 (Mev/ dis) E[ = Effective absorbed energy for secondary organism for radionuclide 1 (Mev/ dis) m' Mass of secondary organism = 70,000 = Total body raass of adult (grams) The actual equation used by CRITER was of the form: O R H E' exp (-1 t ) 'D /E (man) DR' = 2.86 x 10' O g (5A-4) /~N ( ) Supplement 4 SA-3 February 1983 v 1 RBS ER-OLS where: DR' = Total body dose rate to secondary organisms (mrad /yr) n = 136, the number of radionuclides 2.86 x 10' = (0.365) (1,119) (70,000) All other parameters are as previously defined. Exposure to Shoreline Deposits n DRs =U SD g 1"' (5A-5) n UMWf 111,900 ORT exp (-) t) 1-exp(A t)'D p p DR' = p g i=1 (5A-6) where: Duration of exposure to external radiation U = P sources (hr/yr) f = Shore width factor = 0.2 (river shoreline) W Radiological half-life of isotope i in days T. = 1 S. = Effective surface contamination (pCi/cu m) 1 n = 136 = Number of isotopes 111,900 = Factor to convert from (Ci/yr)/(cu ft/sec) to pCi/l and to account for the proportionality con-stant used in the sediment radioactivity model t = Total time the sediment is exposed to the contaminated water normally taken to be the operating lifetime of the facility (hr) ipr = Dose conversion factor for radionuclides D deposited in river sediments (mrad /hr per pCi/m2) Supplement 4 5A-4 February 1983 RBS Eh OLS /, / ') All other parameters are as previously defined. V Dose for Swimming and Water Surface Exposure UM p p t) Og f j gp RD (DR) pr " 1119 p FKp i=1 (5A-7) where: (DR)pr = Total body dos primary and secondary orge . rad /yr) K = Hemispherical escrection constant = 1 for swim-ming and 2 for boating n = 136 = Number of isotopes All other parameters are as previously defined. Dose from Immersion in Gaseous Effluents (s These doses were calculated in the same manner as doces to humans with appropriate changes in the assumptions and (,/ values used as shown in Table SA-4. 4 Dose to Humans Dose rates to humans were calculated using the equations recommended in Regulatory Guide 1.109, Revision 1. Doses from Liquid Pathways The generalized equation for calculating radiation doses to humans via liquid pathways is: (C. ) (U ) (D. .) R = aipj 1p ap alp) (5A-8) where: R . = Annual dose to oroan j of an individual of age alpJ group a from nuclide i via pathway p, in mrem /yr [} Supplement 4 5A-5 February 1983 s/ RBS ER-OLS C = Concentration of nuclide i in the media of IE 2 pathway p, in pCi/1, pCi/kg, or pCi/m U = Exposure time or intake rate (usage) associated ap with pathway p for age group a, in hr/yr, 1/yr, or kg/yr (as appropriate) D . = Dose factor, specific to age group a, radio-alp 3 nuclide i, pathway p and organ j, in mrem /pCi ingested or mrem per hr/pCi per sq m from exposure to deposited activity in sediment or on the ground. 1. Potable Water MU p ap apj = 1,100 R QDi aipj exp (-A tp) i (SA-9) where: Total annual dose to organ j of individuals R . = aP3 of age group a from all of the nuclides i in pathway p, mrem /yr Mixing ratio (reciprocal of the dilution M = P factor) at the point of exposure (or the point of withdrawal of drinking water or point of harvest cf aquatic food), dimensionless F = Flow rate of the liquid effluent in cu ft/sec Q. = Release rate of nuclide i, Ci/yr 1 Radioactive decay constant of nuclide i, A. 2 1 in hr-2 tp = Average transit t..me required for nuclides to reach the point of exposure. For inter-nal dose, tp is the total time elapsed between release of the nuclides and inges-tion of food or water, in hours 1,100 = Factor to convert from (Ci/yr)/(cu ft/sec) to pCi/l Supplement 4 5A-6 February 1983 RBS ER-OLS k,) All the other symbols are as previously defined. 2. Aquatic Foods U M 1,100 ap p 7 Q,B R D exp (-A t ) = apJ F L 1 ip aipj ip i (5A-10) where: Bip = Equilibrium bioaccumulation factor for nuclide i in pathway p, expressed as the ratio of the concentration in biota (in pCi/kg) to the radionuclide concentra-tion in water (in pCi/1), in 1/kg All the other symbols are as previously defined. 3. Doses from Shoreline Deposits U MW ap p apj = 110,000 U GTD F i f aipj 1 n ( ). exp (-A tf p) 1-exp (-A t I gb (SA-11) where: W = Shore-width factor that describes the geometry of the exposure, dimensionless Ti = Radiological half-life of nuclide i, days b = Period of time for which sediment or soil t is exposed to the contaminated water, in hours 110,000 = Factor to convert from (Ci/yr)/(cu ft/sec) to pCi/l and to account for the propor-tionality constant used in the sediment radioactivity model All the other symbols are as previously defined. m ) Supplement 4 5A-7 February 1983 RBS ER-OLS 4. Doses from Foods Grown on Land with Contaminated Water veg animal D C D iV aipj + ap gg aipj Rapj " ap i i (5A-12) where: C = Concentration of radionuclide i in the iV edible portion of crop species V in pCi/kg C.u = Concentration of radionuclide i in the l animal product (meat or milk) in pCi/Kg or pCi/l All other terms are as previously defined. 5. Dose from Ingestion of Wild Duck Although this pathway is not specified in Regulatory Guide 1.109, Revision 1, it has been calculated for the maximum individual using the following equation: From Equation SA-8: R.. (Cip) (Uap) (Dalp 3) = alp 3 where: R.. = Annual dose to organ j of an individ-alp 3 ual of age group a from nuclide i via pathway p (ingestion of duck) C. = Concentration of nuclide i in the duck 1p in pCi/kg U = Intake rate of duck for age group a in ap kg/ year D.. = Dose factor for radionuclide i, age alp 3 group a, and organ j in mrem /pCi ingested Supplement 4 5A-8 February 1983 RBS ER-OLS Os where: g (SA-13) (D1 f) fish + (B f) invertebrates Cip " Clw f (O ) (S + (B f) aquatic plants, g i g maat where: Cip = Annual average of concentration in the water of radionuclide at the point of the duck's consumption of fish, invertebrates and/or aquatic plants in pCi/l Bi = Bioaccumulation factor for radionuclide i in pCi/kg per pCi/1 (V~') f = Fraction of total diet, dimensionless Qg = daily feed (kg/ day) = Stable element transfer coefficient Simeat for meat, dimensionless g A. = Decay constant for radionuclide i 1 in hr-1 td = Distribution time, the time elapsed between catching the duck and consumption of the duck where: GM -A t i p Ciw = 1,100 P F (5A-14) tn = Transit time between the point of release and the point where the duck consumes its food n) (G Supplement 4 5A-9 February 1983 RBS ER-OLS All other symbols are as previously defined. The internal dose from consumption of duck is estimated for a hunter postulated to consume approximately 5.0 lb of duck during a year. The food intake of the duck is assumed to be composed of 100 percent aquatic plants having a bioaccumulation of 0.1 that of algae (28 This assumed diet is conservative, since a substantial portion of the duck diet during the hunting season will be waste grains from fields and would not contribute to the duck body burden from liquid effluents (4,5,88 The entire diet is assumed to come from the mixing zone. This assumption is conservative, since ducks eating outside the mixing zone will hava a lower radionuclide intake. 6. Doses from Swimming and Boating The doses from swimming and boating were calculated using the methodology described in WASH 1258(75 The equation for calculation of external dose to skin and total-body from swimming (water immersion) or boating (water surface) is: ORii (DR) Pr 1,119 M U D. exp (-A.tp) = FKp p p 1pr 1 i (5A-15) where: (DR)Pr = Annual dose to organ r (skin or total-body) from all radionuclides in pathway p (swimming or boating), in mrem /yr Q1 = Release rate of nuclide i, Ci/yr R. = Reconcentration factor to estimate 1 recycling of effluent, dimensionless M = Mixing ratio at the point of exposure P (reciprocal of dilution factor), dimensionless i Supplement 4 5A-10 February 1983 g RBS ER-OLS [V) U = Usage (exposure time), in hr/yr P Dipr = Dose factor: a number specific to a given nuclide i, pathway p (swimming or boating) and organ r (skin or total-body) which is used to calculate radia-tion doses from exposure to a given radionuclide concentration, in mrem /hr per pCi/l A. = Radiological decay constant of 1 nuclide i, in hr-2 t = Transit time for nuclides to reach P point of exposure, in hr F = Flow rate of the liquid effluent, in cu/ft sec K = Geometry correction factor equal to 1 P for swimming and 2 for boating, dimen-sionless (no credit is taken for the shielding provided by the boat) 1,119 = Constant which converts from (Ci/yr)/ ( (cu ft/sec) to pCi/l L Doses from Air Pathways g A. Gamma and Beta Doses from Noble Gases Discharged to the Atmosphere 1. Annual Gamma and Beta Air Doses from Noble Gas Releases Y (r,0) or D (r,0) = 3.17x10' o [X/0] (r,0) DFforDF D g g 1 (SA-16) where: DY (r,0),DO(r,0) = Annual gamma and beta air doses at distance r in the sector at angle 0 l from the discharge point in I rarad/yr 'h Supplement 4 5A-11 February 1983 (D RBS ER-OLS Q. = Release rate of the radionuclide 1 1, in Ci/yr [X/Q](r,0) = Annual average gaseous dispersion factor at distance r in sector in sec/cu m Y B DFf,DFi = Gamma and beta air dose factors for a uniform semi-infinite cloud of radionuclide i, in mrad-cu m/pCi-yr 3.17x104 = Number of pCi per Ci divided by the number of sec per yr 2. Annual Total Body Dose from Noble Gas Releases DT(r,0) =S Xi(r,0)DFS p (5A-17) .1 where: D,(r,0) = Total body dose due to ammersion T 4 a semi-infinite cloud at distance r in sector 0, in mrem /yr Sp = Atten'2ation factor that accounts for dose reduction due to shield-ing provided by residential structures, dimensionless g(r,0) = Annual average ground-level con-X centration of radionuclide i at distance in sector 0, in pCi/cu m DF6i = Total body dose factor for a semi-infinite cloud of radionuclide i which includes the attenuation of 5 g/sq m of tissue, in mrem-cu m/pCi-yr Supplement 4 5A-12 February 1983 RBS ER-OLS / ) 3. Annual Skin Dose from Noble Gas Release ~ 1%J DS(r,0) + xg(r,0)DFSg 1.11 S Xi(r,0)DF = p i i (5A-18) where S D,(r,0) = Annual skin dose due to immersion in a semi-infinite cloud at the distance r in sector 0, in mrem /yr DFSi = Beta skin dose factor for a semi-infinite cloud of radionuclide i, which includes the attenuation by the outer dead layer of skin, in mrem-cu m/pci-yr 1.11 = Average ratio of tissue to air energy absorption coefficients All other parameters are as previously defined. (^} B. Doses from Radioiodines and Other Radionuclides (Not (_j Including Noble Gases) Released to the Atmosphere 1. Annual Organ Dose from External Irradiation from Radionuclides Deposited onto the Ground Surface G(r,0) = 8760 S CG (r,0 ) DFG D (5A-19) p 13 i where: G D, (r,0) = Annual dose to the organ j at ] location (r,0), in mrem /yr Sp = Shielding factor that accounts for the dose reduction due to shield-ing provided by residential struc-tures during occupancy, dimension-less n (V) Supplement 4 5A-13 February 1983 RBS ER-OLS 1 G C.(r,0) = Ground plane concentration of rad-1 ionuclide i at distance r in sector 0, in pCi/sq m DFG j = Open field ground plane dose con-i version factor for organ j from radionuclide i, in mrem-sq m/pCi-hr 8,760 = Number of hours in a year 2. Annual Organ Dose from Inhalation of Radionuclides in Air A D. (r,0) =R x. (r,0) DFA.. Ja a 1 13a i (5A-20) where: A D. (r,0) = Annual dose to organ j of an indi-Ja vidual in the age group a at loca-tion (r,0) due to inhalation, in mrem /yr R = Annual air intake for individuals in the age group a, in cu m/yr x (r,0) = Annual average concentration of 1 radionuclide i in air at location (r,0), in pCi/cu m DFA.. = Inhalation dose factor for radio-13" nuclide i, organ j, and age group a, in mrem /pC1 3. Annual Organ Dose from Ingestion of Atmospherically Released Radionuclides in Food (Vegetation,

~~Milk, Meat -~~

i.e., beef and game animals such as deer and grey squirrel) Supplement 4 5A-14 February 1983 RBS ER-OLS p NY UfC[(r,0)+U$C$(r,0) D (r,0) DFIija = ag i +U CY(r,0)+U f Ch(r,0). F L a1 a11 (5A-21) where: 1 (r, 0 ), C? (r, 0 ), = Concentrations of radionuclide i C 1 in produce (nonleafy vegetables, fruits and grains) milk, leafy vetgetables, and meat respective-ly, at location (r,0) in pCi/kg or pCi/l L F C, (r,0),C, (r,0) = Annual dose to organ i of an indi-1 1 vidual in age group a from ingestion of produce, milk, leafy vegetables, and meat at location (r,0) in mrem /yr [/) DFI.. \\_ 13a = Ingestion dose factor for radionuclide i, organ j, and age group a in mrem /pCi n ~ f,f = Respective fractions of the g y ingestion rates of produce and leafy vegetables that are pro-duced in the garden of interest D D. (r,0) = Annual dose to the org== i of 3 an individual in age group a a from ingestion of produce, milk, leafy vegetables, and meat at location (r,0), in mrem /yr b UV,U",UF,U = Annual intake (usage) of produce, a a a a milk, meat, and leafy vetgetables, respectively, for individuals in age group a, in kg/yr or 1/yr [ ] Supplement 4 5A-15 February 1983 V' RBS ER-OLS General Expression for Population Doses The general expression for calculating the annual population-integrated dose is: D$ = 0.001 7 P D f J L d jda da d a (SA-22) where: DS = Annual population-integrated dose to organ j ] (total body or thyroid), in manrems or thyroid manrems P = Population associated with subregion d jda = Annual population-integrated dose to organ j D (total body or thyroid) of an average individual of age group a in subregion d, in mrem /yr f Fraction of the population in subregion d that = da is in the age group a 0.001 = Conversion factor from mrem to rem The Equation 5A-22 used in conjunction with the preceding l equations and average adult usage factors was used to j calculate the population doses. l For further refinements on the preceding equation used to calculate the doses to man see Regulatory Guide 1.109, Revision 1. In addition to the site-specific data listed in Tables SA-1 through SA-4, the following is a list of information and ER Section references that was used in the analysis. Supplement 4 5A-16 February 1983 J RBS ER-OLS () _Information ER Section 1. Meteorology and radial distance for the 16 cardinal compass directions to the nearest: a. Property Boundary 2.7.5 b. Residence, milk cow, meat 2.7.5 animal, and garden 2. Population distribution for the year 2010 2.5.1 3. Present meat production distribution 2.2.3 4. Present milk production distribution 2.2.3 5. Present vegetable production distribution 2.2.3 4

~~O l~~

~~i l l RBS ER-OLS SA References 1.~~

Soldat, S.K.,

Robinson, N.M.,

and Baker, D.A. Models and Computer Codes for Evaluating Environmental Radiation Doses. Battelle Pacific Northwest Laboratories, Richland, WA, February 1974. BNWL-1754, 2. Regulatory Guide 1.109 Revision 1, October 1977. Calculation of Annual Doses to Man From Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10CFR50, Appendix I. 3. Regulatory Guide 1.109, March 1976. Calculation of Annual Doses to Man From Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10CFR50, Appendix I, March 1976. 4. Kortright, F.H. The

~~Ducks, Geese, and Swans of NortP America.~~

~~The Stackpole Company. Harrisburg, PA, 1942. 5.~~

Martin, A.C.,

Zim, H.S.,

~~and~~

~~Nelson, A.L.~~

American Wildlife and Plants - A Guide to Wildlife Food Habits. Dover Publications Incorporated, New York, NY, 1951. 6. Waterfowl Tomorrow. U.S. Dept. of Interior, Bureau of Sports Fisheries and Wildlife of the Fish and Wildlife Service, Washington, DC, 1964. 7. Atomic Energy Commission. Final Environmental Statement Concerning Proposed Rule Making Action; Numerical Guides for Design Objectives and Limiting Conditions for Operation to Meet the Criterion ("as low as practicable") for Radioactive Material in Light Water Cooled Nuclear Power Reactor Effluents. Washington, DC, July 1973. Supplement 4 5A-18 February 1983 0 RBS ER-OLS .,m ( ) TABLE SA-1 PARAMETERS AND ASSUMPTIONS USED IN EQUATIONS FOR ESTIMATING DOSES TO HUMANS 2 F = Effluent flow rate = 9.8 ft /sec Tp = Transit time (Tables 5A-2 and SA-3) Dp = Dilution factors (Tables SA-2 and SA-3) 2 I = Irrigation rate = 0.104(1/m /hr) fi = Fraction of year crops are irrigated = 1.0 (12 months) p = Fraction equilibrium ratio of C14 =1 (continuous release); = 0.073 (intermittent release) Cow feed consumption rate = 24 kg/ day [ wet weight] Qf = fp Fraction cf year cows graze on pasture = 1.0(100%) = Fraction of daily feed which is pasture fs = grass = 0.62 3 Absolute humidity = 12.9 g/m H = Uap = Recreational usage factor (hr/yr of exposure): i-Maximum individual Child Teen Adult Shoreline 14.0 67.0 12.0 Swimming 28.0 45.0 8.0 Boating 29.0 52.0 52,0 N Uap: Population Child Teen Adult Shoreline 9.5 47.0 8.3 Swimming 12.0 19.0 3.5 2 Boating 17.0 29.0 29.0 Vp = Total commercial U.S. fish harvest = 2.33x10' kg/yr 50 mi commercial fish harvest = 3.4x108 kg/yr Vdp = Vdp' = 50 mi sports fish harvest = 3.4x108 kg/yr Vdp 50 mi milk production = 1.1x108 1/yr 4 = Vdp 7 50 mi meat production = 5.20x10 kg/yr = Vdp 50 mi vegetation production = 4.4x108 kg/yr = NOTE: Input parameters and assumptions used in dose equations will be taken from Regulatory Guide 1.109, Revision 1. Site-specific information will be used for the above parameters. Supplement 4 1 of 1 February 1983 v .m_. U 1 5 EBS ER-OLS TABLE SA-4 ASSUMPTIONS USED IN ESTIMATING DOSES TG BIOTA values Assigned Primary organisms secondary organisms Pa rameter Eish, Crustaceans, Mollusks, Algael Muskrat Heron Duck Deer Sguirrel Eaccoon. Al{igator R Recirculation 0 0 0 0 0 0 factor F Flow rate (c f s) 9.8 9.8 9.8 9.8 9.8 9.8 9.8 9.8 M Mixing ratio-0.088 0.088 0.088 0.088 0.098 0.088 1/ dilution t act or

0. 2 0.2 W Shore width

0. 2

0. 2

0. 2

0. 2 factor K Water immer-1 1

~~1 sion Water sur-2 2 face Efftetive radius (cm) 2 6 11 5 45.0~~

~~2. 5 14.0 17.8 M Mass (kg) 1 4.6 0.91 58.97 0.41 12.0 38.56 P Fooo con-sumption (gpd)~~

Aquatic plants 100 54.0 Fish 600 275 200 Invertebrate U Usage (hr/yr) Shoreline 8,766 2,922 2,922 4,383 - 2,191 1,972 Water immersion 8,766 2,922 6,974 Water surf ace 8,766 2,922 4,383 - t Holdup time (hr) 0 0 0 0 0 0 Residence time (mo) 12 12 12 12 12 12 12 12 Supplement 4 1 of 3 February 1983 RBS ER-OLS CHAPTER 6 LIST OF TABLES Table Number Title 6.2 PREOPERATIONAL AND OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 6.2-2 SPECIAL INTEREST THERMOLUMINESCENT DOSIMETER LOCATIONS 6.2-3 RADIOCHEMICAL ANALYTICAL SENSITIVITIES 6.4-1 PERTINENT SENSOR CHARACTERISTICS 6.4-2 COMPARISON OF HOURLY WEATHER PARAMETERS RECORDED BY DATA LOGGER AND STRIP CHART RECORDERS FOR JANUARY 20, 1979 6.4-3 DATA RECOVERY PERCENTAGES BY PARAMETER FOR THE PERIOD MARCH 17, 1977 THROUGH MARCH 16, 1979 6.5-1 WATER QUALITY PARAMETERS SAMPLED IN THE MISSISSIPPI RIVER DURING INTERIM STUDIES -s 6.6-1 METHODS OF ANALYSES OF GROUNDWATER SAMPLES 6.6-2 CHEMICAL AND THERMAL MONITORING 8 6-iii l RBS ER-OLS CHAPTER 6 LIST OF FIGURES Figure Number Title 6.2-1 RADIOLOGICAL ENVIRONMENTAL MONITOR LOCATIONS 6.2-2 RADIOLOGICAL ENVIRONMENTAL MONITOR 4 LOCATIONS 10 KM RADIUS 6.5-1 AQUATIC BIOLOGY SAMPLING STATIONS ESTABLISHED DURING BASELINE STUDY 6.5-2 AQUATIC SAMPLING STATIONS - INTERIM MONITORING, 1974-1931 6.5-3 AQUATIC SAMPLING STATIONS - PREOPERATIONAL AND OPERATIONAL MONITORING, 1981-1985 6.7-1 DATA ACQUISITION SYSTEM O 6-iv O l RBS ER-OLS [/] 6.2 RADIOLOGICAL \\_ Parts 20 and 50 of 10CFR require that radiological environmental monitoring programs be established to provide data on measurable levels of radiation and radioactive materials in the site area. In

~~addition, Appendix I~~

to 10CFR50 requires the evaluation of the relationship between the quantities of radioactive material released in ef fluents during normal operation, including anticipated operational occurrences, and the resultant radiation doses to individuals from principal pathways of exposure. The River Bend Station environmental monitoring program will be conducted to determine the effectiveness of in-plant measures used for controlling the release of radioactive materials. Surveillance will be established to identify changes in the use of unrestricted areas (e.g., for agricultural purposes), to provide a basis for nodifications in the monitoring programs for evaluating doses to individuals from principal pathways of exposure (identified l in Section

~~5. 4),~~

and to better ensure that resultino radiation doses to the public will be minimal. The results of the environmental radiological monitoring i program are intended to confirm that the measured i concentrations of radioactive materials and lev.els.of radiation are not greater than federal limitations. The 7-s ( ) program provides measurements of radiation and radioactive materials in those pathways which lead to the highest potential radiation exposures of individuals, resulting from station operation. The radiological monitoring prograf for the station will-be conducted in two phases: the preoperational phase and the operational phase. The preoperational phase will be conducted during the. 2 yr period prior to commercial ope ration. This phase is designed to determine background levels of radioactivity and to identify important pathways of exposure to man and biota. Following this period, modifications to the preoperational

~~phase, resulting from experiences with procedures and equipment, will be incorporated into the operational phase to establish a more efficient monitoring program.~~

~~Guidelines for the radiological monitoring program are outlined in: 1) Regulatory Guide 8.1, 2) A Branch Technical Position on Radiological Environmental Monitoring Program Requirements, and~~

~~3) Radiological Effluent Technical Specification (R ETS) for conformance to the provisions of 10CFR50, Appendix I.~~

~~The radiological surveillance program l l~~

~~6. 2-1 o~~

l i l . \\1 RBS ER-OLS the River Bend site will be based on these recommended programs (2,2,3) 6.2.1 Preoperational Monitoring The preoperational environmental monitoring program will be instituted 2 yr prior to commercial operation. The purposes of this program are: 1) to measure background radiation levels and their variations along the anticipated c ri tical pathways near the station; 2) to train personnel, and 3) to evaluate procedures, equipment, and techniques. The elements (sampling medium and type of analysis) of both the preoperational and operational programs will be essentially the same. The duration of the preoperational program and specific mediums sampled are as follows: 6 months 1 yr 2 yr Airborne iodine Airborne particulates Direct radiation Iodine in milk Milk Fish and inverte-(while animals Surface water brates are on pasture) Drinking water Food products Shoreline sedi-ment The preoperational radiological monitoring program is summarized in Table 6.2-1. A map showing tentative locations of monitoring stations and nearest receptors is provided in Fig. 6.2-1. 6.2.1.1 Sampling Locations, Techniques, and Frequencies 6.2.1.1.1 Atmospheric Discharges Particulates Tentative locations for five indicator and one control continuous air monitoring stations have been selected. 4 Three samples will be collected in different sectors with the highest calculated annual average ground-level D/Q, i.e., north-northeast,

~~north, no' h-northwest directions.~~

One additional sample will be take' Jrom the vicinity of a community having the highest calculated annual average grour,-level D/Q (i.e., St. Francisville, 5.0 km, west-northwest). One additional sample will be taken from a control location 15 to 30 km from the plant in a southwest (least~ prevalent) wind direction. A sample will be taken near the embayment on GSU property to monitor the impact on site air quality from Big Cajun No. 2 operation. Supplement 4 6.2-2 February 1983 e i RBS ER-OLS O) Airborne particulate samples will b'e collected by drawing ( air at 3 x 10-2 cu m/ min through a filter. After passing through the

~~Tilter, the air passes through an iodine cartridge.~~

~~The dust filters will be changed weekly or as required by dust loading, whichever is more frequent. After standing for 3 or 4 days to allow the daughter isotopes of radon and thoron to~~

~~decay, the filters will be assayed weekly for gross beta activity and examined quarterly for gamma isotopes.~~

Airborne Iodine The indicator and control sampling stations will utilize iodine cartridges, which will be replaced and assayed weekly for radioactive iodine-131. 6.2.1.1.2 Direct Radiation Forty-two thermoluminescent dosimeter (TLD) stationswillbel4 established to measure offsite exposure due to direct radiation. An indicator station will be located in each of 16 compass directions surrounding the plant near theg property / restricted area boundary. Another set of indicator l g stations will be located within a 6-to 10-km range of the site in each of the 16 compass directions. Sevenstationsl4 [^} will be located in areas of special interest, such as local (,_/ population centers, schools, or milk animal pastures. These special locations are listed in Table 6.2-2. Three other stations will be maintained as control stations located at a distance of 15 to 30 km in the southwest,

~~east, and north directions.~~

~~The indicator stations will contain two TLDs. One TLD will be replaced and read~~

~~monthly, the other quarterly.~~

The background stations will contain four TLDs. Two will be replaced and read monthly, the other two quarterly. 6.2.1.1.3 Ingestion Milk Milk appears to be the most direct and the most sensitive means for monitoring iodine-131 (the limiting isotope) in terrestrial pathways. The known locations of milk animals within a 5-km radius of the plant in 1980 are listed in Table 2.7-115 for dose assessment purposes. These locations, specifically 1,600 m NW, 1,400 m N, and 1,300 m N-NW, were identified in the Livestock Survey for g Radiation Exposure Pathways within a 3 1/10 mi (5-km) Radius of GSU's River Bend Nuclear Power Plant, as prepared by Gulf [) Supplement 4 6.2-3 February 1983 V RBS ER-OLS South Research Institute (GSRI), March 1980. In a subsequent effort to establish milk sampling stations for the monitoring program at these locations, it was determined that the milking animals no longer existed. Accoraing to the referenced Branch Technical Position on Radiological Environmental Monitoring Program Requirements, the maximum organ dose to the individual at the 5-km distance in the highest dose potential areas (W,

~~WNW, NW, and NNW) was determined and found to be 0.30 (from cow milk) and 0.75 mrem (from goat milk) in the WNW location.~~

Although this value is significantly less than 1 mrem / year, milk a surveillance program will be implemented. The number of sampling sites selected and their respective locations, and the location of the control sample site differs from those recommended in the referenced Branch Technical Position. Justification for these alternates is provided. Samples from the McKowen Dairy, located 6 km ESE from the 4 station, will be obtained for gamma isotropic and iodine-131 analysis semimonthly when animals are on

~~pasture, and monthly at other times.~~

This sampling site is the only known location within the 5-to 8-km distance from which milk samples can be readily obtained. A control sample from milking animals at the Louisiana State Penitentiary, located approximately 35 km NW of the station, also will be analyzed at the same frequency. This site, 35-km distant, is the most practical location from which to obtain control samples. The milking animal locations used in the Appendix I analysis to evaluate the radiation dose to individuals from the cow-milk-man pathway (Section 5.4) differs from that used in this sampling program. The Appendix I analysis is based on the milking animal locations identified in the GSRI s"rvey. The analysis remains applicable however, since these milking animals were present at the time the analysis was being performed and are the most conservative (highest dose potential) from the cow-milk-man pathway. Food Products i Three samples of broadleaf vegetation grown in the offsite locations of the highest calculated annual average ground-level D/Q will be taken for gamma isotopic analysis on the edible portion of the

~~plant, if milk samples are not available.~~

This analysis will be done monthly when crops are available. Samples of broadleaf vegetation will be l2 obtained from a 40-sq m onsite garden in the sector with the s highest calculated annual average ground-level D/Q, if Supplement 4 6.2-4 February 1983 ll RBS ER-OLS 1 A a () offsite samples are not obtainable. A control sample of l2 similar vegetation will be obtained from the Louisiana State Penitentiary at Angola. The potential radiological impact of station operation on nearby vegetable crops, including the sweet

~~potato, was reviewed.~~

No waterborne pathway to man exists via the sweet potato. Irrigation and surface and ground waters in the station vicinity do not reach the vegetable croplands, since there is no use of Mississippi River water for sweet potato or other vegetable crop. Impact to vegetables near the station from normal gaseous releases will be insignificant, as discussed in Section 5.4. The milk pathway provides a greater potential impact to man, and vegetable sampling will be conducted only if milk samples are not available. 6.2.1.1.4 Liquid Discharges Surface Water River water will be collected at the control station located approximately 4.2 km upriver from the plant liquid discharge

~~outfalls, at the St. Francisville ferry crossing.~~

River water will also be collected at a point approximately 3.9 km 1 downstream from the plant liquid discharge outfalls, near (/) Crown-Zellerbach paper mill, where the plant effluent is (_ completely mixed with river water. Weekly samples for gamma isotopic analysis will be composited and analyzed monthly; g weekly samples for tritium analysis will be compo,s,ited and analyzed quarterly. Drinking Water A monthly composite sample of the raw intake at the first downriver water supply (Peoples Water Service Company Bayou Lafourche, River Mile 175.5) will be collected and analyzed on the same schedule as that of surface water. Analysis of gross beta and isotopic gamma activity will be performed. Since the calculated dose for the consumption of I; 3 Supplement 4 6.2-4a February 1983 x_/ aK v RBS ER-OLS O l l 1 l THIS PAGE INTENTIONALLY LEFT BLANK. i l O Supplement 4 6.2-4b February 1983 RBS ER-OLS [ water is less than 1 mrem per year, composite analysis of \\-- iodine-131 will not be performed (Section 5.4). A composite analysis for tritium will be performed quarterly. Similar analyses of a sample from the upstream control station at l, the St. Francisville ferry

~~crossing, located 4.2 km l~~

upstream, will be performed. Groundwater Preoperational groundwater radioactivity data will be col-l1 lected on a quarterly basis beginning 1 yr prior to opera-tion. Samples will be obtained from a downgradient well and 4 an upgradient control well located on the site property. Shoreline Sediment one sample of shoreline sediment will be selected for semiannual gamma analysis from the east bank of the Mississippi River near the Crown-Zellerbach papermill. This is upstream of shoreline areas with existing or potential recreational value and public access. Fish and Invertebrates One sample of each commercially and recreationally impcrtant '%g species will be taken seasonally or semiannually from the y,,/ vicinity of the plant liquid discharge points for gamma 1 isotopic analysis on edible portions. One sample of the species in an area upstream of the discharge will also same i be monitored. These samples will be collected and provided by commercial fisherman at the preceding location. 6.2.1.2 Radiological Sample Analyses The radiological monitoring program will adhere to the standards outlined in Regulatory Guide 4.15, Revision 1, February

~~1979, for quality assurance of the surveillance i~~

methods used. Results will be confirmed through participation in the Environmental Protection Agency's Environmental Radioactivity Laboratory Intercomparisons Studies Program. Typical detection capabilities for the environmental sample analyses are provided in Table 6.2-3. 6.2.2 Operational Monitoring The purpose of the operational monitoring program is to monitor for radiological releases along pathways identified in the preoperational program. The operational program will Supplement 4 6.2-5 February 1983 (v} l

w

,yn .,-.,__,.,,n._
RBS ER-OLS begin when commercial operation begins and will continue throughout the life of the plant. Following the O l l l l l Supplement 1 6.2-Sa October 1981
f \\ (/) \\ sm RBS ER-OLS TABLE 6.2-1 PREOFERATIONAL AND CPERATIONAL RADIOIDGICAL ENVIPONMENTAL HONITOh1NG PROGRA5( Exposure Patn.ay Numcer of Samples Sampling and Type, Frequen cy, and/or Sample and Locationsta) Collection Freguencyta) and Analysis AIBECBUE Radiciodine and Samples from 6 locations: Continuous sampler Padioiodine cannister: Particulates operation with sample analyze weehly for 3 samples in different sectors collection weekly or I-131 l= of the highest calculated annual as required by dust average ground-level D/Q loading, whichever is (NNE, N, hNW). more frequent I sample from the vicinity of a Particulate sampler: community having the highest Gross beta radio-calculated annual average ground-acti'rity following level D/C (St. Francisville, 5 km WNW). filter changet a), composite (by location) for gamma 1 sample onsite batween the isotopic (3) quarterly station and the river (near embayment). 1 sample from a control location 15-30 km (10-20 mi) distant and in the least prevalent (SW) wind direction (*) DIRECT BADIATION 42 staticns with two or more dosimeters Monthly or quarterly Gamma dose monthly or to be placed as follows: 1) an inner quarterly ring of stations in the general area of the property / restricted area boundary and an outer ring in the 6-to 10-km range from the site, with a station in each sector of each ring (16 sectors x 2 rings = 32 stations) 2) the balance cf the stations, 10, are to be placed in the special interest areas designated in Table 6.2-2, and in 3 areas to serve -as contrcl stations (SW, E, and N, between 15 and 30 km).. Supplement 4 1 of~3 February 1983
( h L.) J R RBS ER-OLS TABLE 6.2 (Cent) Exposure Pathway Number of Samples Sampling and Type, Frequency, and/cr sample and Locations (s) Collec;1on Freguencytt) and. Analysis WATEEBOhNE Surfacets) 1 sample, 4.2 km upstream from the Composite sample over Gamma isotopic analysis plant liquid discharge outfalls, at 1-month period monthly. Composite for 1 St. Francisville ferry crossing tritium analyses quarterly 1 sample 3.9 km aownstream from the plant liquid discharge outfalls, near Crown-Zellertach paper mill Drinking 1 sample from the nearest composite sample Composite for downstream water supply monthly Gross beta and gamma (Baycu Lafourcne, River Mile 175.5) isotopic analyses monthly. Composite 1 sample 4.2 km upstream for tritium analysis quarterly Grcund 1 sample from downgradient source Quarterly Gamma isotopic and tritium analysis quarterly 1 sample f rom upgradient source Sediment f r om 1 sample from downstream area Semiannually Gamma isotopic analyses Shoreline near Crown-Zellerbach papermill semiannually INGESTICN Milk 1 sample from milking animals Semimonthly when ani-Gamma isotopic and I-131 at the AcKowen dairy (6 km ESE) mais are on pasture, analysis semimonthly when monthly at other times animals are on pasture; monthly at other times I sample from milking animals at a control location (Louisiana State Penitentiary) 35 km NW Fish and I sample of each commercially and Sample in season, or Gamma isotopic l Invertebrates recreationally important species semiannually if they analysis on edible in vicinity of discharge plant are not seascnal portions (provided by 1 sample of same species in areas not commercial fisherman) influenced by plant disch'Tge Supplement 4 2 of 3 February 1983
O O O RBS EF-OLS TABLE 6.2-1 (Cont) Exposure Patnway Number of Samples Samplina ano Type, Frequency, ar.d/or Sample and Locations (as collection Freguencyt: 3 and Analysis Focd Products 3 samples cf broadleaf vegetation Monthly when available Gamma isotopic grown nearest off site locations analysis on edible of Lighest calculated annual portion average ground-level C/G (NNE, i 1 N, NNW) If milk sampling is not j pertormed. If offsite samples are not octainal le, an onsite garden will provide brcadleaf vegetation samples. 1 sample of each of the similar Monthly when available vegetation grown 35 xm NW at 4 = Angola from the Louisiana State Penitentiary I l (8)The number, medium, f requency, and location of sampling may vary. At tires, it may not be possible or I practical to obtain samples of the medium of choice at the most desireo location or time. In these instances, suitable j alternative mediums and locations will be chosen for the particular pathway in question. (a > Particulate sample f alters will te analyzed f or gross beta 24 hr or more af ter sampling to all, w for radon and thoron daughter decay. It gross beta activity in air or water is greater than 10 times the yearly mea a of control samples for any medium, gamma isctopic analysis will te performed on the individual samples. (3) Gamma isotop;c analysis means the identification and quantification of gamma-emitting radionuclides that may be attributable to the effluents from the facility or from weapons testing fallout. (**The purpcse of this sample is to cbtain background information. If it is not practical to establish control locations in accordance with the distance and wind direction criteria, other sites which provide valid background data may be substituted. (5)The upstream sample will be taken at a distance beyond influence of the discharge. The downstream sample will be taken in an area teyond but near the mixing zone. Supplement 4 3 of 3 February 1983
RBS ER-OLS [ TABLE 6.2-2 SPECIAL INTEREST THERMOLUMINESCENT DOSIMETER LOCATIONS Map i ID Distance No.* Location (km) Direction 1 Edge of New Roads 10.0 SW Population Center 2 Air Sampling Station on 2.8 SSW f River Access Road 3 West Feliciana 4.0 NW Parish Hospital 4 Bains School Complex 9.5 NNW 4 5 Edge of Jackson 12.0 NE Population Center i 6 Edge of St. Francis-6.0 NW ville = 4 7 East Louisiana State 12.0 NE s/ Hospital i
~~See Fig.~~
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~~~ /v "A %w. & ~r,V. !)i"k, S 90 cp 1./. ') I FIGURE 6.2-1 v7 h 3%% 1 n p 8~. y e 'f, /,., a - @m RADIOLOGICAL ENVIRONMENTAL y ,.., t 5,, c,' 4 c - r a ' 1~~
~~1.,;'~~
~~9e %e^ n y[Q:M, ri ( A l MONITOR LOCATIONS-PLAN Mf _ !.i N]Q X , k,[N 4~~
q
,9 hf, ' _. % %)y rh dj ! RIVER BEND STATION gfsn,g< d .Gf ENVIRONMENTAL REPORT-OLS + ,,e o c/ )o r8 SUPPLEMENT 4 FEBRbARY 1983
I I'5 "* 3 ) N NNW NNEj c 421 e '4 u NW <ri "\\ 35km NW FROM SITE 10 I A S y. WNW [ f6 965 ,. (d 3 Francisville 10 i S66 SW W P I 0 6'5 'S / S-I E ~ 90I k PCUC i D 964 G c@ 2 WSW; ^ F - / s I. p***. D 10 o
~~jsos p~~
~~= New { S Roads~~
~~M4 l~~
~~"e 415 5 O.-(15 TO 30 k m SW~~
+,
4 FROM SITE) ,fe, SSW SSE \\\\ 3 ._N
~ ~. - cN' h b I' 5 ? ~ 565 . $4 l L NE Jackson k 4 LEGEND: 4 D C ~~ h FEDERAL HIGHWAYS e STATE ROADS TENE f AIRFIELD N FERRY CROSSING 966 q W+ RAILROADS 4 m-. a. [o {.. j O AIR MONITORING STATION I e [ e THERMOLUMINESCENT DOSIMETERS (TLD) p
~~(Ng) SPECIAL INTEREST TLD(SEE TABLE 6.2-2 )~~
67 M MILK SAMPLINGS S SHORELINE SEDIMENT SW SURFACE WATER [ E {,3 g), V V EGETATION ) F FISH AND INVERTEBRATES l 964 W O 1 2 I I i SCALE-MILES ESE I L'LI IS 'CF.HT R AL GULF SC ALE - KILOMETERS 61 c FIGURE 6.2-2 SE RADIOLOGICAL ENVIROMENTAL MONITOR LOCATIONS 10 km RADIUS l RIVER BEND STATION ENVIRONMENTAL REPORT -OLS SUPPLEMENT 4 FEBRUARY 1983
RBS ER-OLS \\ CHAPTER 7 (J ENVIRONMENTAL IMPACTS OF POSTULATED ACCIDENTS INVOLVING RADIOACTIVE MATERIALS 7.1 PLANT ACCIDENTS This section discusses the radiological environmental impact of River Bend Station as required by 10CFR51, and as based on the accident assumptions provided in Environmental Standard Review Plan, Section 7.1 (1,2) For each accident the following is provided: 1. A description of a representative type of accident appropriate for each accident class together with its basic assumptions 2. A determination of the radiclogical doses for each classification accident as it applies to River Bend Station. Table 7.1-1 identifies the accidents considered. /g Table 7.1-2 gives a summary of the radiological doses of ( ) each accident to a hypothetical maximum exposed individual at the exclusion area boundary, as defined in 10CFR100(3) Table 7.1-3 summarizes the population doses for each accident at an 80-km radius utilizing the projected demography for the year 2000. The demographic .ata and CHI /Q values at the 50 percent probability level that were used in these analyses can be found in Sections 2.5.1 and 2.7, respectively. Both the demographic data and CHI /Q values were based on the most recently available information at the time of analyses performance, thus providing more representative individual and population doses. Calculations of doses to individuals and population are performed in accordance with the methods of NRC Regulatory Guide 1.3 and Regulatory Guide 1.145'*,58 Population doses result from adjusting the individual dose by a factor incorporating population density and CHI /Q values for each specific sector. Supplement 4 7.1-1 February 1983 I~sb s_- l
RBS ER-OLS 7.1.1 Design Basis Accidents 7.1.1.1 Trivial Incidents Class These incidents are included and evaluated under routine 1 release in accordance with Appendix I to 10CFR50 in 2 Section 5.4. 7.1.1.2 Small Releases Outside Containment Class These releases include releases from small spills or leaks of radioactive materials outside the containment. These included and evaluated under routine releases releases are l in accordance with Appendix I to 10CFR50 in Section 5.4. 2 7.1.1.3 Radwaste System Failures Class 7.1.1.3.1 Equipment Leakage or Malfunction The soure.e for this event is the largest radioactive storage tank which would be a rupture of an off gas system charcoal delay bed. This would cause the release of 25 percent of the average inventory on the bed. The source of activity bed is based upon the expected reactor coolant steam for a activities. The effective charcoal delay bed holdup time for krypton is 9.2 hr and for xenon is 211 hr. The duration of the accident is assumed to be 2 hr. The calculated dose at the exclusion area boundary is given in Table 7.1-2. The integrated dose to the population is given in Table 7.1-3. 7.1.1.3.2 Release of Waste Gas Storage Tank Contents This event is similar to the previous accident with the exception that 100 percent of the bed inventory is released to the atmosphere. The calculated dose at the exclusion area boundary is given in Table 7.1-2. The integrated dose to.the population is given in Table 7.1-3. Supplement 2 7.1-2 March 1982
E RBS ER-OLS ^ CHAPTER 8 T3E NEED FOR THE PLANT f i On March 26, 1982 the Nuclear Regulatory Commission (NRC) amended its regulations in 10CFR Part 51 to provide
~~that, for National Environmental Policy Act (NEPA) purposes, need for power issues need not be addressed by applicants for i~~
operating licenses for nuclear power plants in environment reports to the NRC. t i O i l Supplement 4 8.1-1 February 1983 l [ l l
RBS ER-OLS p 10.4 BENEFIT-COST BALANCE \\.y/ 10.4.1 Benefits 10.4.1.1 Direct Benefits The primary benefit of River Bend Station is the generation of electric power to meet the growing demand in the Gulf States system. This project will produce approximately 12.88 billion kWh/yr which will go to residential, industrial, and commercial customers throuThout the service area. 10.4.1.2 Indirect Benefits Benefits incident to the construction and operation of the project are mainly economic in nature, such as payment of
~~taxes, increased employment, and money spent in Louisiana and other parts of the country for engineering, materials, and fuel processing.~~
All of these benefits are presented in Sections 4.4.2 and 5.8.2. Other' benefits incident to the construction and operation of the project include the following. The extensive biological studies which have been completed [ or are under way are adding to the present knowledge of the \\- biota of the Lower Mississippi River. These. studies which are being conducted by Louisiana State University are discussed in detail in several sections of this report. Similar extensive studies of the
~~geology, hydrology, archaeology, and meteorology of the area have already contributed significantly to man's knowledge of the environment.~~
The facility will contribute to tourism. The operation of the visitors center will attract visitors. This will have the positive effect of increasing the exposure of the already existing tourist attractions discussed in Section 2.5.3. Positive steps will be taken to acquaint visitors to the site with these other tourist attractions. Gulf States proposes to construct an outdoor classroom and a nature trail which, along with the Wildlife Management Lake, will be used for educational purposes. Supplement 4 10.4-1 February 1983
RBS ER-OLS 10.4.2 Costs 10.4.2.1 Direct Costs The cost to construct River Bend Station - Unit 1 and common facilities is estimated to be $2.3 billion. The estimated annual cost to operate Unit I for the first 5 yr, including interest on investment, overhead,
~~taxes, depreciation and other operating maintenance, insurance and full costs are as follows:~~
l Annual Cost of Operation 1984 (8 mo.) 321,200,000 l 1985 471,768,000 1986 463,277,000 1987 458,092,000 1988 455,454,000 l 1989 (4 mo.) 151,490,000 For the first full year (1985) of commercial operation, a breakdown of the total estimated operational costs is as follows: mils /kWh 1 Fixed Costs 377,829,000 68.0 Nuclear Fuel 58,910,000 10.6 l Operations and Maintenance 35,029,000 6.3 Total 471,768,000 85 mils /kWh l Decommissioning costs for Unit 1 are estimated to be i approximately $47 million, as described in Section 5.9.2. 1 10.4.2.2 Indirect Costs The indirect costs due to environmental impacts summarized in previous sections of this
chapter, while difficult to

quantify, have been investigated and are believed not to be significant when compared to the benefits derived from the project.
~~l 1 l Supplement 1 10.4-2 October 1981 1 I l 1 1}}~~

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