NRC Inventory of Dams 

U.S. Nuclear Regulatory 

Commission 

Prepared by G. E. Lear, 0. 0. Thompson 

NUREG-0965 
NOTICE 

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~---------------------------

GPO Printed copy price: $5.50 __ 
NRC Inventory of Dams 

Manuscript Completed: November 1982 

Date Published: January 1983 

Prepared by 

G. E. Lear, 0. 0. Thompson 

U.S. Nuclear Regulatory Commission 

Washington, D.C. 20555 

NUREG-0965 

ABSTRACT 

The NRC Inventory of Dams has been prepared as required by the charter of the 

NRC Dam Safety Officer. The inventory lists 51 dams associated with nuclear 

power plant sites and 14 uranium mill tailings dams (licensed by NRC) in the 

U.S. as of February 1, 1982. 

Of the 85 listed nuclear power plants (148 units), 26 plants obtain cooling 

water from impoundments formed by dams. The 51 dams associated with the 

plants are: 

(1) located on a plant site (29 dams at 15 plant sites) 

(2) located off site but provide plant cooling water (18 dams at 11 

additional plant sites) 

(3) located upstream from a plant (4 dams) -- they have been identified as 

dams whose failure, and ensuing plant flooding, could result in a 

radiological risk to the public health and safety 

The dams that might be considered NRC 1 s responsibility in terms of the Federal 

dam safety program are identified. This group of dams (20 on nuclear power 

plant sites and 14 uranium mill tailings dams) was obtained by eliminating 

dams that do not pose a flooding hazard (e.g., submerged dams) and dams that 

are regulated by another Federal agency. 

The report includes the principal design features of all dams and related 

useful information. 

i i i 

CONTENTS 

Page 

ABSTRACT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii 

ACKNOWLEDGMENTS.................................................. vii 

1 BACKGROUND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 

2 PURPOSE AND SCOPE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 

3 DISCUSSION.................................................... 2 

3.1 Dams Associated with Nuclear Power Plants Sites ....... . 

3 .1.1 Onsite Dams ................................. . 

3.1.1.1 Dams Classified as Seismic 

2 

3 

Category I........................ 3 

3.1.1.2 Dams Not Classified as Seismic 

Category I........................ 3 

3.1.2 Offsite Dams ................................ . 

3.1.2.1 Offsite Dams Providing Cooling 

Water................... . . . . . . . . . . 4 

3.1.2.2 Offsite Dams Located Upstream....... 4 

3.2 Uranium Mill Tailings Dams ............................ . 5 

4 IDENTIFICATION OF FGDS DAMS.................................. 6 

5 REFERENCES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 

APPENDIX A - SUMMARY OF DAMS AND WATER SOURCES ASSOCIATED WITH 

NUCLEAR POWER PLANT SITES 

APPENDIX B - PRINCIPAL DESIGN FEATURES OF ONSITE DAMS 

APPENDIX C - PRINCIPAL DESIGN FEATURES OF URANIUM MILL TAILINGS 

DAMS LOCATED IN NON-AGREEMENT STATES 

APPENDIX D - PRINCIPAL DESIGN FEATURES OF OFFSITE DAMS 

APPENDIX E - URANIUM MILLS LOCATED IN AGREEMENT STATES 

v 

ACKNOWLEDGMENTS 

The compilation of information in this report was a cooperative effort by many 

NRC staff, including the NRC Standing Dam Safety Advisory Group members who 

helped develop the report format and who, with assistance from their colleagues, 

provided many helpful review comments. The comments from the Regional Offices 

were also a valuable contribution. 

Particular appreciation is due to Andrew Ryan, a cooperative education student 

in the Engineering Division during January-August 1982, who performed a major 

part of the search of NRC files to compile the inventory. 

vii 

NRC STANDING DAM SAFETY ADVISORY GROUP 

George E. Lear, Office of Nuclear Reactor Regulation 

Dam Safety Officer, Chairman 

Owen 0. Thompson, Office of Nuclear Reactor Regulation Deputy Dam Safety Officer 

Rex G. Wescott, Office of Nuclear Reactor Regulation 

Donald A. Nussbaumer, Office of State Programs 

John F. Kendig, Office of State Programs 

Daniel Gillen, Office of Nuclear Material Safety and Safeguards 

Peter J. Garcia, Office of Nuclear Material Safety and Safeguards 

Leon L. Beratan, Office of Nuclear Regulatory Research 

Thomas J. Nicholson, Office of Nuclear Regulatory Research 

Robert E. Shewmaker, Office of Inspection and Enforcement 

Eugene Gallagher, Office of Inspection and Enforcement 

John F. Klucsik, Office of the Executive Legal Director 

ix 

NRC INVENTORY OF DAMS 

1 BACKGROUND 

The Federal Dam Safety Program was initiated by President Carter in 1977 

(Ref. 1). As part of that program, NRC submitted a report on its practices 

relating to dam safety (Ref. 2) to an interagency committee for their review. 

After reviewing the input from all participating Federal agencies, the committee prepared the Federal Guidelines for Dam Safety (FGDS) (Ref. 3). In a memorandum to the Chairman of NRC (et al.) dated October 4, 1979 (Ref. 4), President Carter requested that 11 the head of each Federal Agency responsible for or 

involved with ... regulation ... of dams adopt and implement the Federal Guidelines.11 The Federal Guidelines recommend that each Agency•s Dam Safety Officer 

should 11 ... maintain an inventory of agency dams ... 11 and, in reports to FEMA on 

NRC progress in implementing the Federal Guidelines (Refs. 5 and 6), the NRC 

committed to prepare the inventory. 

2 PURPOSE AND SCOPE 

The primary purpose of this study was to identify all dams that could, in any 

way, be considered NRC dams in the context of the Federal Guidelines. A secondary purpose was to identify the particular dams for which the Federal Guidelines 

may be applicable and for which the NRC might be considered 11 responsible 11 in 

terms of the Federal Guidelines. These dams are described as FGDS dams. 

The study included all nuclear power plants that were operating or under construction and all uranium mills licensed by the NRC, as of February 1, 1982. 

For nuclear power plant sites, the inventory includes water-retaining structures that meet the Federal Guidelines definition of a dam (i.e., more than 

25 ft high or retaining more than 50 acre-ft of water) and that 

(1) are located onsite (i.e., on a nuclear power plant site), or 

(2) are located offsite and provide cooling water for nuclear power plant 

operations, or 

(3) are located offsite, upstream from a nuclear power plant, and have been 

identified as dams whose failure, and resulting plant flooding, could 

result in a radiological risk to the public health and safety. 

The inventory also includes all dams associated with uranium milling operations 

that are licensed by the NRC (i.e., uranium mill tailings dams that are not 

located in Agreement States). 

The information provided in this report was obtained from NRC files (pr{marily 

license application documents such as Safety Analysis Reports). During~the 

file search, other useful information was recorded. The data provided in this 

report for reference include 
(1) sources of normal and emergency cooling water for each nuclear power plant 

(Appendix A) 

(2) a listing of other onsite water-retaining structures that do not meet the 

definition of a dam (e.g., ponds, canals, basins) (Appendix A) 

(3) identification of the Federal agency that regulates each listed offsite 

dam--all offsite dams were, coincidentally, found to be regulated by 

another Federal agency (Appendix A) 

(4) the principal design features of all onsite dams (Appendix B) and all 

uranium mill tailings dams (Appendix C) 

(5) descriptive features of listed offsite dams (Appendix D) 

(6) a listing of uranium mills located in Agreements States (Appendix E) 

This study did not include a rigorous check of actual field conditions for conformance with the information obtained from the NRC documents. Because there 

are often field changes during construction and operation of a facility, the 

information provided in this report should be used judiciously. 

3 DISCUSSION 

3.1 Dams Associated with Nuclear Power Plant Sites 

On February 1, 1982, there were 85 nuclear power plants (148 units) operating 

under construction or proposed in the United States, and 26 of these plants 

obtain cooling water from impoundments formed by dams; 11 of the 26 plants use 

preexisting offsite impoundments only, 5 use both onsite and offsite impoundments, and 10 use onsite impoundments only. 

Appendix A lists all the plants included in the study and identifies the normal 

and emergency cooling water sources associated with each plant, and all onsite 

or offsite dams that impound cooling water. 

A listing of other onsite water-retaining structures (ponds, canals, basins, 

etc., that do not meet the definition of a dam) and related comments are also 

provided for each plant. 

There are 33 impoundments (listed in Appendix A) for the 26 relevant plants 

because some plants have more than one impoundment. There are 51 dams listed 

because some impoundments are formed by more than one dam. The details of 

these groups of dams/impoundments are as follows: 

Onsite Dams 

Seismic 

Category I 

Impoundments 4 

Dams 14 

Other 

Than 

Seismic 

Category I 

10 

15 

2 

Offsite Dams 

Providing Upstream 

Plant Water 

15 

18 

4 

4 

Total 

33 

51 
3.1.1 Onsite Dams 

Of the 29 onsite dams, 14 dams are classified as seismic Category I and 15 are 

not classified as seismic Category I. The principal design features of these 

onsite dams are provided in Appendix B. The information was obtained from NRC 

files (predominantly the PSAR and FSAR), and the details generally include dam 

height and crest length, reservoir capacity, freeboard, drainage area, inspection programs, and typical cross-sections. Information that is missing from 

the descriptions was not available in the NRC files reviewed. 

3.1.1.1 Dams Classified as Seismic Category I 

The 14 seismic Category I dams impound emergency cooling water for 10 plants as 

follows: 

Catawba 

Clinton 

Comanche Peak 

Farley 

Harris (2 dams) 

McGuire 

North Anna (2 dams) 

Oconee 

Summer (3 dams) 

Wolf Creek 

Three of these plants (Farley, McGuire, and North Anna) have independent emergency impoundments. At the Harris site, the Main Dam has been designated as 

seismic Category I, but emergency cooling water is impounded by the Auxiliary 

Dam that isolates an arm of the main reservoir. The remainder of the seismic 

Category I impoundments are formed in an arm of a principal reservoir by submerged or partially submerged dams, and they are not included in the listing of 

FGDS dams in the conclusion of this report because their failure would not pose 

a flood hazard. 

3.1.1.2 Dams Not Classified as Seismic Category I 

Of the 15 onsite dams that are not classified as seismic Category I, 14 dams 

impound normal cooling water for 9 plants, as follows: 

Braidwood 

Clinton 

Comanche Peak 

Dresden 

LaSalle 

Midland 

North Anna* 

South Texas 

Wolf Creek (6 dams) 

At one plant (McGuire), the onsite dam that is not seismic Category I provides 

storage for wastewater. 

All of these dams are included in the listing of FGDS dams in the conclusion of 

this report. Some of these dams are licensed by a State agency. 

3.1.2 Offsite Dams 

Of the 22 offsite dams listed in Appendix A, 18 form impoundments that provide 

cooling water for nuclear power plants. The remaining 4 dams are upstream 

*Also used for alternate source of emergency cooling water. 

3 
from nuclear power plants, and they have been identified as dams whose failure, 

and ensuing plant flooding, could result in a radiological risk to the public 

health and safety. Descriptive features of these offsite dams are provided in 

Appendix D, based primarily on information obtained from the inventory of dams 

prepared by the U.S. Army Corps of Engineers (Ref. 7). 

3.1.2.1 Offsite Dams Providing Cooling Water 

Cooling water for normal operations (and in 4 cases for emergency operation) of 

nuclear power plants is obtained from 15 offsite impoundments formed by 18 offsite dams. All of the offsite dams are regulated by another Federal agency and 

therefore are not included in the listing of FGDS dams in the conclusion of 

this report. The dams in this category (Dam Name, Regulatory Agency, and 

associated nuclear power plant) are as follows: 

Chickamauga Dam (TVA) - Sequoyah and Watts Bar 

Conowingo Dam (FERC) - Peach Bottom* 

Cowans Ford Dam (FERC) - McGuire 

Dardanelle Dam (COE) - Arkansas 

Dresden Island Lock and Dam (COE) - Dresden 

Frees Creek Dams (3 dams) (FERC) - Summer 

Guntersville Dam (TVA) - Bellefonte 

Keowee and Little River Dams (Lake Keowee) (FERC) - Oconee 

Lake Robinson Dam (FERC) - Robinson* 

Lake Wylie Dam (FERC) - Catawba 

Pickwick Landing Dam (TVA) - Yellow Creek 

Rancho Seco Dam (FERC) -Rancho Seco 

Sherman Dam (FERC) - Yankee Rowe* 

Vernon Dam (FERC) - Vermont Yankee* 

Wheeler Dam (TVA) - Browns Ferry 

3.1.2.2 Offsite Dams Located Upstream 

Dams located upstream from nuclear power plants are considered in the NRC 

licensing process if dam failure could lead to flooding of a nuclear power 

plant that could result in a radiological risk to the public health and safety. 

Four dams that meet this criterion have been identified in Appendix A and are 

included in Appendix D. They are (Dam Name, Federal Regulatory Agency, and 

Plant Name): 

Harriman Dam (FERC), 6 miles upstream from Yankee Rowe 

Jocassee Dam (FERC), 10 miles upstream from Oconee 

*Impounds normal and emergency cooling water 

4 
Montgomery Lock and Dam (FERC), 3 miles upstream from Beaver Valley 

Watts Bar Dam (TVA), 2 miles upstream from Watts Bar 

All of these dams are regulated by other Federal agencies (FERC or TVA) and 

therefore are not included in the listing of FGDS dams in the conclusion of 

this report. In addition, it appears that any other offsite dams upstream from 

nuclear power plants are not within NRC purview because they are either too 

small or too far removed from a nuclear power plant to pose a flooding hazard 

that would result in a radiological risk to the public health and safety. 

3.2 Uranium Mill Tailings Dams 

The uranium mill tailings dams that are licensed by NRC are as follows: 

Urani urn Mi 11 

Bear Creek 

Federal American Partners 

Gas Hi 11 s 

Highland 

Lisbon 

Lucky Me Gas Hills 

Moab 

State 

Wyoming 

Wyoming 

Wyoming 

Wyoming 

Utah 

Wyoming 

Utah 

(Pathfinders) Shirley Basin Wyoming 

(Petrotomics) Shirley Basin Wyoming 

Shootering Canyon 

Split Rock 

Sweetwater 

White Mesa 

Utah 

Wyoming 

Wyoming 

Utah 

Number of Dams Comments 

1 Licensee investigating 

raising of dam 

2 No more raises planned 

1 No more raises planned 

1 No more raises planned 

1 Dam is one of a series 

1 One more raise planned 

1 Seepage problems 

1 

1 

1 

1 

1 

1 

No more raises planned 

None 

One more raise planned 

One more raise planned 

None 

Dam is one of a series 

The listing shows that there are 14 uranium mill tailing dams located at 13 

uranium mills that are licensed by NRC. They are located in Wyoming (10 dams) 

and Utah (4 dams). The TVA Edgemont Uranium Mill in South Dakota was not 

included in the study because it is no longer operating and is undergoing 

reclamation. In cases where dams were constructed in a series, so that flow 

from an upstream failure would be retained by a downstream dam, only the furthermost downstream dam currently being utilized has been included. This is the 

case at the Lisbon Mine and Mill, the Lucky Me Gas Hills Mill, the Pathfinder 

Shirley Basin Mill, and at the White Mesa Uranium Mill. 

5 
Appendix C provides the principal design details of each of the uranium mill 

tailings dams listed above, such as dam height and length, reservoir capacity, 

surface area, inspection programs, etc. It also provides a typical crosssection of each dam. All sources of information are noted at the bottom of the 

forms; most of the information was obtained from the latest consultant's construction reports. Missing information was not available in the documents 

reviewed. 

All of these dams are included in the listing of FGDS dams in the conclusion of 

this report. 

Although uranium mill tailings dams in Agreement States have not been included 

in this inventory, Appendix E identifies the uranium mills in Agreement States 

where there may be tailings dams. This information was obtained from the 

"Directory and Profile of Licensed Uranium Recovery Facilities" (Ref. 8). 

4 IDENTIFICATION OF FGDS DAMS 

The inventory shows that there are 51 dams that form 33 impoundments associated 

with nuclear power plant sites in the United States, as described in Section 3.1 

of this report. 

Dams for which the Federal Guidelines may be applicable and for which the NRC 

might be considered "responsible" in terms of the Federal Guidelines (FGDS dams) 

were identified by eliminating those dams that are judged to not be in this 

category, i.e., 

(1) dams that are submerged or isolate an arm of a principal impoundment 

because their failure would not pose a flood hazard (the principal dam 

would be the FGDS-designated dam) 

(2) dams that are regulated by another Federal agency (Corps of Engineers, 

Federal Energy Regulatory Commission, or Tennessee Valley Authority) 

because these agencies already have regulatory authority for Federal 

Guidelines aspects of these dams 

(3) dams that are too small or too far removed from a nuclear power plant site 

to pose a flooding hazard to a plant because these dams are not within NRC 

regulatory authority 

The NRC inventory of 51 dams (33 impoundments) associated with nuclear power 

plant sites contains 20 FGDS dams (14 impoundments) as follows (Nuclear Power 

Plant Name, State, Dam Name): 

Onsite, seismic Category I dams (5 dams, 4 impoundments): 

Farley (Ala.)- Category I Holding Pond Embankment 

McGuire (N.C.)- Standby Nuclear Service Water Pond Dam 

North Anna (2 dams) (Va.)- Service Water Dikes 1 and 2 

Harris (N.C.)- Main Dam 

Onsite dams that are not seismic Category I (15 dams, 10 impoundments): 

Braidwood (Ill.)- Cooling Pond Embankment 

Clinton (Ill.) -Main Dam 

6 
Comamche Peak (Tex.)- Squaw Creek Dam 

Dresden (Ill.)- Spray Pond Impoundment 

LaSalle (Ill.)- Cooling Pond Dike 

McGuire (N.C.)- Wastewater Collection Basin Dam 

Midland (Mich.)- Cooling Pond Dike 

North Anna (Va.)- North Anna Dam 

South Texas (Tex.)- Cooling Pond Embankment 

Wolf Creek (6 dams) (Kans.)- Main Dam and Saddle Dams (i) through (v). 

All 14 uranium mill tailings dams in the NRC inventory of dams are classified 

as FGDS dams. They are as follows (Mill Name, State): 

Bear Creek (Wyo.) 

Federal American Partners (2 dams) (Wyo.) 

Gas Hills (Wyo.) 

Highland (Wyo.) 

Lisbon (Utah) 

Lucky Me Gas Hills (Wyo.) 

Moab (Utah) 

(Pathfinders) Shirley Basin (Wyo.) 

(Petrotomics) Shirley Basin (Wyo.) 

Shootering Canyon (Utah) 

Split Rock (Wyo.) 

Sweetwater (Wyo.) 

White Mesa (Utah) 

5 REFERENCES 

(1) Memorandum from President Carter to the Chairman of the Nuclear Regulatory 

Commission (and to heads of other Federal agencies dealing with dams), 

April 23, 1977. 

(2) Letter from E. Case (NRC) to P. Smith (Office of Science and Technology 

Policy, Executive Office of the President), Subject: 11 Nuclear Regulatory 

Commission, Summary of Practices Relating to Dam Safety, 11 September 2, 

1977. 

(3) Federal Coordinating Council for Science, Engineering and Technology, 11 Federal Guidelines for Dam Safety, 11 June 25, 1979. 

(4) Memorandum from President Carter to the Chairman of the Nuclear Regulatory 

Commission (and to heads of other Federal agencies dealing with dams), 

October 4, 1979. 

(5) Letter from W. Dircks (NRC) to J. Macy, Director (FEMA), Subject: 11 Progress Report, Implementation of Federal Guidelines for Dam Safety, U.S. 

Nuclear Regulatory Commission, January 1, 1980, 11 March 12, 1980. 

(6) Letter from H. Denton (NRC) to L. Giuffrida, Director (FEMA), Subject: 11 Second Progress Report, Implementation of Federal Guidelines for Dam 

Safety, U.S. Nuclear Regulatory Commission, December 31, 1981, 11 

December 30, 1981. 

7 
(7) U.S. Army Corps of Engineers, 11 National Program of Inspection of Dams, 11 

Office of the Chief of Engineers, May 1975. 

(8) Argonne National Laboratory, 11 Directory and Profile of Licensed UraniumRecovery Facilities, 11 May 1981 (Final Draft). 

8 
Appendix A 

Summary of Dams and ~later Sources 

Associated wtth Nuclear Power Plant Sites 

Arkansas 

Bailly 

Beaver Valley Bellefonte 

Big Rock Point 

Braidwood 

Browns Ferry Brunswick 

Byron 

Callaway 

Ca 1 vert Cl iffs 

Catawba 

Clinton 

Comanche Peak 

Cook 

Cooper Station 

Crystal River 

Davis-Besse 

Diablo Canyon Dresden 

Duane Arnold 

Farley 

Fermi 

Fitzpatrick 

Fort Calhoun 

Fort St. Vrain 

Ginna 

Grand Gulf 

Haddam Neck 

Harris 

Hartsv111 e 

Hatch 

Hope Creek 

Humboldt Bay Indian Point 

Kewaunee 

LaCrosse 

LaSalle 

Limerick 

Maine Yankee 

Marble Hill 

McGuire 

A-1 

Midland 

r1i 11 stone 

Monticello 

Nine r~il e Point 

North Anna 

Oconee 

Oyster Creek 

Palisades 

Palo Verde 

Peach Bottom 

Perry 

Pilgrim 

Point Beach 

Prairie Island 

Quad Cities 

Rancho Seco 

River Bend 

Robinson 

Salem 

San Onofre 

Seabrook 

Sequoyah 

Shoreham 

Skagit/Hanford 

South Texas 

St. Lucie 

Summer 

Surry 

Susquehanna 

Three Mile Island 

Trojan 

Turkey Point 

Vermont Yankee 

Vogtle 

WNP 1, 2, 4 

WNP 3, 5 

Waterford 

Watts Bar 

Wolf Creek 

Yankee Rowe 

Yell ow Creek 

Zimmer 

Zion 
Summary of Dams and Water Sources 

Associated with Nuclear Power Plant Sites 

P (lant ~arne UnitSJ 

Arkansas 

(2) 

Bailly 

(1) 

Beaver Valley 

(2) 

Bellefonte 

(2) 

Big Rock Point 

( 1 ) 

Braidwood 

(2) 

Browns Ferry 

(3) 

Brunswick 

(2) 

Byron 

(2) 

Callaway 

(2) 

On-Site Dams Off-Site Dams 

Cat 1 Non-Cat I (Regulatory Aqency) 

1 (N) 

Dardanelle (N) 

(COE) 

Montgomery Lock & 

Dam (COE) 

Guntersville (N) 

(TVA) 

14heeler (N) 

(TVA) 

N = water source for normal operations 

E = water source for emergency operations 

B = water source for both normal and emergency operations 

- = no dams 

A-2 

Other Water Sources 

(Comments) 

Dugout spray pond on-site {E) 

Lake Michigan (B) 

Ohio River (B) r~ontgomery Lock & Dam is 

3 miles upstream 

Emergency intake in Tennessee 

River Channel (E) 

Lake Michigan (B) 

Kankakee River supplies on-site 

impoundment. 

Emergency water in depression in bottom of impoundment. 

Emergency intake in Tennessee 

River Channel (E) 

Intake from Snows Marsh, fed 

from Cape Fear River (B). 

Discharge to Atlantic Ocean. 

·Big Rock River (B) 

Missouri River (N) 

Dugout pond on-site (E) 
Summary of Dams and Water Sources 

Associated with Nuclear Power Plant Sites 

~lant same On-Site Dams Off-Site Dams 

Units Cat 1 Non-Cat I (Requlatorv Aoencv) 

Calvert Cliffs - - - (2) 

Catawba 

(2) 1 (E) - Lake Wylie (N) 

(FERC) 

Clinton 1 (E) 1 (N) - (l) 

Comanche Peak 1 (E) 1 (N) -

(2) 

Cook - - - (2) 

Cooper Station - - -

(l) 

crystal River - - - (l) 

Davis-Besse - - - ( 1 ) 

Diablo Canyon - - - (2) 

N = water source for normal operations 

E = water source for emergency operations 

B = water source for both normal and emergency operations 

- = no dams 

A-3 

Other(Water So)rces Comments 

Chesapeake Bay (B) 

Cat. I dam isolates an arm 

of Lake Wylie 

Cat. I dam is submerged 

Cat I dam isolates an arm of 

non-Cat. I (Squaw Creek 

Reservoir). 

Lake Michigan (B) 

i•1i ssouri River (B) 

Gulf of Mexico (B) 

Lake Erie (B) 

Dike on-site separates marsh 

from Lake (per Bureau of 

Sports Fisheries & Wildlife). 

Pacific Ocean (B) 
Summary of Dams and Water Sources 

Associated with Nuclear Power Plant Sites 

Plant Name I On-Site Dams Off-Site Dams Other(Water Sources 

1Units) Cat 1 Non-Cat I (Regulatory Aqency) Comments) 

Dresden - 1 (N) Dresden Island (N) Cooling water is pumped from 

(3) (COE) Dresden Island reservoir into 

on-site impoundment (Spray Pond) via canals that hold 

emergency supply of 9 million 

gallons (E). 

Duane Arnold - - - Cedar River (B) 

( 1 ) 

Farley 1 (B) - - Chatahoochee River provides 

(2) make-up for on-site 

impoundment that supplies cooling towers. 

Fermi - - - Lake Erie (B) 

( 1 ) 

Fitzpatrick - - - Lake Ontario (B) 

( 1 ) 

Fort Calhoun - - - Missouri River (B) 

( 1 ) 

Fort St. Vrain - - - South Platte River and St. Vrai 

( 1 ) Creek (N) 

Two dugout spray ponds on-site 

Ginna - - - Lake Ontario (B) 

(1} 

Grand Gulf 

{2) - - - Wells beside Mississippi River 

Basin under cooling towers (E). 

N = water source for normal operations 

E = water source for emergency operations 

B = water source for both normal and emergency operations 

- = no dams 

A-4 

n 

(E) 

(N). 
Plant Name 

(Units) 

Haddam Neck 

( 1 ) 

Harris 

(4) 

Hartsville 

(2) 

Hatch 

( 2) 

Hope Creek 

(2) 

Humboldt Bay ( 1 ) 

Indian Point 

(3) 

Kewaunee 

( 1 ) 

LaCrosse 

(l) 

LaSalle 

(2) 

Summary of Dams and Water Sources 

Associated with Nuclear Power Plant Sites 

On-Site Dams Off-Site Dams Other Water Sources 

Cat 1 Non-Cat I (Regulatory Agency) (Comments) 

- - - Connecticut River (B) 

1 (E) - Cat. I dam isolates an arm of 

1 (N) on-site Main Reservoir 

- - - No information obtained 

- - - Altamaha River provides make-u 

for cooling towers (B) 

- - - Delaware River (B) 

- - - Humboldt Bay (B) 

- - - Hudson River (B) 

- - - Lake Michigan (B) 

- - - Mississippi River (B) 

- 1 (N) - Illinois River provides water 

impoundment; emergency water i 

depression at bottom (E). 

- - -

p 

to 

n 

Limerick Schuylkill River (N) 

(2) Dugout spray ponds on-site (E) 

Maine Yankee - - - ( 1 ) 

N = water source for normal operations 

E = water source for emergency operations 

B = water source for both normal and emergency operations 

- = no dams 

A-5 

Black River (B) 
Summary of Dams and Water Sources 

Associated with Nuclear Power Plant Sites 

Plant Name On-Site Dams Off-Site Dams 

(Units) Cat 1 Non-Cat I (Requlatorv Aqency) 

Marble Hill - - - (2) 

McGuire 1 (E) 1 Cowans Ford (N) 

(2) (FERC) 

~1idland 1 (N) 

(2) 

Millstone - - - ( 3) 

t1onticello - - - ( 1 ) 

Nine Mile Point - - - (2) 

North Anna 2 (E) 1 (B) - (3) 

N = water source for normal operations 

E = water source for emergency operations 

B = water source for both normal and emergency operations 

- = no dams 

A-6 

Other Water Sources 

(Comments) 

Ohio River (B) 

Non-Category I dam is for 

wastewater storage 

Tittabawassee River provides 

water to non-Category I 

impoundment,emergency water 

in depression at bottom of 

impoundment (E). 

Long Island Sound (B) 

Mississippi River provides norm 

make-up water for cooling tower 

(N ~. Emergency makeup water 

beneath cooling towers (E). 

L~ke Ontario (B) 

North Anna Dam~provides normal 

cooling water. It also provide 

makeup water to the independent 

emergency impoundment. Due to 

its Category I design it 

operates during both normal 

and emergency modes. 

al 

s 

s 
lant Name 

Units) 

Oconee 

(3) 

Oyster Creek 

(l) 

Palisades 

(l) 

Summary of Dams and Water Sources 

Associated with Nuclear Power Plant Sites 

On-Site Dams Off-Site Dams Other Water Sources 

Cat 1 Non-Cat I (Reaulatorv Aaencv) (Comments) 

1 (E) - Lake Keowee (N) Jocasse Dam is 10 miles upstre 

Little River (N) Cat. I Dam is submerged within 

Jocasse (all FERC) Lake Keowee (impounded by both 

Lake Keowee and Little River 

Dam). 

- - - Intake fro~ Forked River (B). 

discharge to Oyster Creek. 

Small fire protection pond 

on-site. 

- - - Lake Michigan (B) 

am. 

Palo Verde - - - City wastewater treatment plan ts 

(3) 

Peach Bottom - - Conowingo (B) 

(2) (FERC) 

Perry - - - (2) 

Pilgrim - - - (l) 

Point Beach - - - (2) 

N = water source for normal operations 

E = water source for emergency operations 

B = water source for both normal and emergency operations 

- = no dams 

A-7 

provides make-up for cooling 

towers which is stored in 

an on-site pond (N). On-site 

spray ponds (E). 

Gonowi ngo Reservoir pt·ovi des 

make-up for cooling towers. 

Lake Erie (B) 

Cape Cod Bay (B) 

Lake Michigan (B) 
~lant Name 

Units) 

Prarie Island 

(2) 

Quad Cities 

(2) 

Rancho Seco 

( 1 ) 

River Bend 

( 1 ) 

Robinson 

(1) 

Salem 

(2) 

San Onofre 

(3) 

Seabrook 

Summary of Dams and Water Sources 

Associated with Nuclear Power Plant Sites 

On-Site Dams Off-Site Dams Other(Water Sources 

Cat 1 Non-Cat I (Reaulatorv Aaency) Comments) 

- - - Mississippi River (B) 

- - - Mississippi River (B) 

- - Rancho Seco (N) Folsom South Canal ( supp 1 emente 

(FERC) by Rancho Seco Reservoir) 

provides make-up water to cooli 

towers (N). Dugout spray ponds 

on-site (E). 

- - - Mississippi River provides make-up for cooling towers (B) 

- - Lake Robinson (B) - (FERC) 

- - - Delaware River (B) 

- - - Pacific Ocean (B) 

- - - Atlantic Ocean provides normal 

make-up for cooling towers (N). 

d 

ng 

(2) Wells on-site provide emergency 

Sequoyatt - - Chickamauga (N) 

(2) (TVA) 

N = water source for normal operations 

E = water source for emergency operations 

B = water source for both normal and emergency operations 

- = no dams 

A-8 

make-up (E). 

Emergency intake in Tennessee 

River channel (E). 
Summary of Dams and Water Sources 

Associated with Nuclear Power Plant Sites 

lant ~arne On-Site Dams Off-Site Dams 

Units Cat 1 Non-Cat I (Regulatory Aqency) 

Shoreham - - - ( 1 ) 

Skagit/Hanford - - - (2) 

South Texas 1 (N) - (2) 

St. Lucie - - - (2) 

Sumer 3 (E) (3) Frees Creek (N) 

( 1 ) (FERC) 

Surry - - (2) 

SusquehaRna - - (2) 

Three r1i 1 e - - - Island (2) 

Trojan - - - ( 1 ) 

Turkey Point - - - (2) 

N = water source for normal operations 

E = water source for emergency operations 

B = water source for both normal and emergency operations 

- = no dams 

A-9 

Other(~ater So)rces Comments 

Long Island Sound (B) 

Columbia River ~rovides normal 

make-up for coaling towers (N). 

Buried tank on-site provides 

emergency make-up. (E). 

Colorado River supplies on-site 

cooling pond (N). Dugout pond 

on-site (E). 

Atlantic Ocean (B). Alternate 

Cat. I intake structure 

provided. 

3 Category I dams isolate arm 

of Frees Creek Reservoir. 

James River (B) 

Susquehanna River provides norm 

make-up for cooling towers (N). 

Dugout pond on-site (E). 

Susquehanna River (B) 

Columbia River (B) 

Biscayne Bay provides make-up f~} 2000 acres of cooling canal 

(B . 

al 

s 
Summary of Dams and Hater Sources 

Associated with Nuclear Power Plant Sites 

Plant Name 

(Units) 

Vermont Yankee 

(l) 

Vogtle 

(2) 

~JNP l , 2, 4 

(3) 

\~NP 3, 5 

(2) 

\·laterford 

( 1 ) 

·.:::tts 3ar 

(2) 

~·io 1 f Creek 

( l ) 

Yankee Ro1·1e 

(l) 

On-Site Dams I Off-Site Dams 

Cat l Non-Cat I (Regulatory Agency) 

1 (E) 6 (N) 

I Vernon Lake (B) 

(FERC) 

! 

' ',./atts !3arJ 

Chickamauga (N) 

(both TVA) 

Harriman, 

Sherman (B) 

(both FERC) 

;1 = water source for normal operations 

E = v1ater source for emergency operations 

3 = water source for both normal and er:1ergency operations 

- = no dams 

A-10 

Other(\·later Sources 

Comments) 

Lake provides make-up for 

emerg. cooling towers. 

Savannah River (N). Wet 

cooling tower basin provides 

emergency make-up for 

cooling towers (E). 

Columbia River (N). 

Dugout spray ponds on-site (E). 

Wells on-site orovide normal 

make-up for co~ling towe~s (N) I Wet cooling tower basin provides 

1 emergency make-up water (E). 

i t1ississippi River (N). Wet 

I cooling tower basin provides 

j emergency make-up water for i cooling towers (E). 

! E~ergency intake in Tennessee 

! River channel (E). 

1\·iatts Bar Dam is 2 miles 

upstream. 

Category I Dam is submerged. 

Main dam and 5 saddle dams 

1 form non-Cat. I reservoir. 

Harriman Dam is 6-mtles 

upstream. 
Plant Name 

(Units) 

Yellow Creek 

( 1 ) 

Summary of Dams and Water Sources 

Associated with Nuclear Power Plant Sites 

On-Site Dams Off-Site Dams Other(Water S~)rces Cat 1 Non-Cat I (Requlatorv Aqencv) Comments 

- - Pickwick Landing (N) Dugout spray ponds onsite 

(TVA) 

(E). 

Zimmer - - - Ohio River provides make~up 

( 1 ) 

Zion - - - (2) 

85 plants 14 15 22 

148 units 

N = water source for normal operations 

E = water source for emergency operations 

B = water source for both normal and emerg~ncy operations 

- = no dams 

A-ll 

for cooling towers (B). 

Lake Michigan (B). 

Appendix B 

Principal Design Features of Onsite Dams 

Braidwood 

Catawba 

Clinton 

Comanche Peak 

Dresden 

Farley 

(Shearon) Harris 

LaSalle 

B-1 

McGuire 

Midland 

North Anna 

Oconee 

South Texas 

Summer 

Wolf Creek 
i 

I ! EJlioT•NG GROUNO L --~--~~~------- --

i ~·-o· 

BRAIDWOOD STATION 

FINAL SAFETY ANALYSIS REPORT 

FIGURE 2. 4-35 

DIKE SECTION AND DETAILS 

B-2 
Principal Design Features of 

On-Site !Jams 

Date: June 1982 

1. Licensee (01·mer) Commonwealth Edison Co. 

2. Plant name Braidwood Dam name Cooling Pond Embankment ------~------~--------------

NRC Docket No. 50-456/457 

3. Location: State Illinois County _w_,_·l_l __ _ 2. S"miles from 6rcl~<~v:c.od 

4. Downstream population centers 

Name Morris. 11 1. Popu 1 at ion _,...:8::..;,!..!1..:!.9.:!.4 _____________ _ Distance 18 mi + 

5. Rad. Hazard (Cat. I): No Inundation Hazard (L, M~ H) 

6. Dam Characteristics: 

7. 

Purpose Norma 1 cooling water 

Type Homogenous earthfi 11 

Height 20' 

Length 63 300' 

Crest Width 14' 

Slopes 3:1 

Hydrology: 

Drainage area 5.3 sg miles 

Storage: normal 22,300 acre-ft 

Elevations: 

Top 600' 

Spillway 595.75' 

Norm. Pool 595' 

Max. Pool 598' 

Freeboard 2' 

Surface area __ 2_47_5_a_cr_e_s ___ _ 

Maximum 34,000 acre-ft 

Spillway type _O=e:.:e ______________________ _ 

Discharge Cap. ~2io!2...,.9~0_c=...f!..::s~-----------------------

8. Year construction started __ _;1..;;.9-'-76.::;_ _______ completed ----!1:...:::9~8:::..0 __ _ 

9. Licensed by -----------------------------------------------

10. Regular inspection: Bimonthly water flow (amount of water flow into sample 

wells around the dam); Bimonthly sedimentation checked. 

11 . COE Inventory Reference # ___ No_n_e _____________________________ _ 

12. References· FSAR Section 2.4.8, Region III Paul Pelke 

13. Comments ----------------------------------------------------------

Prepared By: 

B-3 
OJ 

I 

..!==> 

W POND 

·-------

S. N. S. W. POND DAM 

TYPICAL SECTION 

JO 0 

~~ 

l(:;il• 

MAX POND EL 

JO c;o 

leet 

t

AM 

Q' N~~- --- 40' ~--_.iQ'_ 

RIP RAP ---~lr r -t· ,1 <£>< ---;- • . "" "" "' 

/-GROUP 

IZ:f !(2' sr EL 5~~_<!-

~-"--- r.ae!"~.r~~~ , ~ 

PI 

P5 

LAKE WYLIE ····,M12 ---~r ~----/-f_U~- AX ~[!,_559~!_ DRAIN ISEEDETAIL) 

_ _..-:: !!!__ ZONED BlANKET ·-

~l ~t;:;:;·, " e> ;, ~~; -~~ -- '"". 1---- ''" ----=-~ _____ ....c=-_9~c...l!~-BOTTOM 

----- (!v EL 5450 ----

------ "~ 

·- ~ ---

~~ - ------- BORING A-116 

----- ~~ :wt'l w.wr- ·---- --PREPARED FOU 'M'~"~' - --- -- -~- 71\\\V$~--1 --------·w;;_."'"'~-- APPROX. TOP ROCK-----

>' ~~J-- ., ' 5101't:. Hlt'HAP -' I I· ,., .:.. __ :::::::;-:-;:-:-/ ,1:./(\\ -. I tn lt.H MATt.HIAL 

I. l ----.:.:_:::-·."~-.~~~ . \'k ).- ·. ---::::::-'>.ltf'I -~ ,, • ---??· ·\ lLv)c 

~=~-g~~~~~=:=:~~c'\- c_ '}_~_?;~~l~b)c_,_ -~ j f•M:: tnlt.k • UJ.'\H~l tllllH til ANKE J OHAit-4 Ar H ~45 0-tO"MIN 

81 A NIH T CHAIN AUOVf Et ~4~ 0- 6~MIN · 

BLANKET fJRAIN DETAIL 

1 

~ 

<' II 1 (. 8 Ill ll 

BORING A-119 NQIL 

BLANKET DRAIN fOLlOWS THE CONTOUR 

Of TilE NATURAL LAKE BOTTOM ABOVE 

EL5450 AND EXISTS BETWEEN El 5450 

6 fL5700 ORIGINAL GRADE AS fOLLOWS 

BLANKET DRAIN BEGINS AT EL 570 0 

AT STATION 0.50; Sl.OPES TO H 5450 

AT STATION 2 oOO; LEVEl AT £l 545 0 

BETWEEN STATIONS 2o00AN04 .00, 

SLOPES TOEL 5600 AT SIATION 5o00; 

TIIENCE TO EL570 0 AI STATION 7.00 

A TOE DllAIN IS CONSTRUCTED ABOVE 

EL 5 70 0 ORIGINAL GRADE 

TYPICAL SECTION, STANDBY IIUCI EAR 

SERVICE WATER POND DAM 

~m CATAWUA NUClEAR STATION 

~ Figure 2.5.6-1 
Principal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee (Owner) Duke Power Co. 

2. Plant name Catawba Dam name Standby Nuclear Service Water Dam --------------------------- NRC Docket No. 50-413/414 

3. Location: State South Carolina County York ------- miles fror.: 

4. Downstream population centers 

Name -------------- Popu 1 at ion ------------- Distance ______ _ 

5. Rad. Hazard (Cat. I): Yes 

6. Dam Characteristics: 

Purpose --~Em~e~r~g~e~nc~y~c~o~o~ll~·n~g~wa~t~e~r __ ___ 

Type ___ ...:H.:.::O:.:.:.m:::::o..:2.ge::..:n.:.::o~u~s_e::..:a~r....::tc:..:h..:..f..:..il!-l,__ __ _ 

Height --=-75~'--------------­

Length __ 1.....;7.....;1..:.0_' ---------

Crest Width .;3~5 ..... ' ----------

Slopes 3: 1 

7. Hydrology: 

Drainage a rea _.;!.4.!.:1 O~a~c..:..re,._,s,__ ______ _ 

Storage: normal 560 acre-ft 

Inundation Hazard (L, M~ H) 

Elevations: 

Top 595' 

Spi 11 way _5...,7__.1 ... '___________ _ 

Norm. Pool ,..S.t.J.Zl..._' __________ _ 

Max. Poo 1 :758~2~-:-"'3'----------:--­ Freeboard 12.7' upstream, 2.8'downstream 

Surface area 46 acres ___ _ Maxi~um 1200 acre-ft 

Spillway type Open pipe ------------------------------------------------ Discharge Cap. -3S.,_,O.__,.c.,_f"""s ---------------------

8. Year construction started-------- completed _1_9_80_+ ___ _ 

9. Licensed by _ _;A..:.::s:.....!:.p.::.:e r:._:.R~e~g ::...· -=G~u~i d::..:e::........:.l~ . .:..:12::..:7 __________________ _ 

10. Regular inspection: 

11. COE Inventory Reference#---------------------------------

12. References FSAR 2.4 9.2.1 9.2.5 

13. Comments Standby Nuclear Service Water Darn isolates an area of lake Wylie 

Note differences in upstream/downstre3no freeboard during Standard ProjiGt Flood 

which would be caused by failur,e of Cowans Ford Dam. 

Prepared By: 

B-5 
OJ 

I 

0'1 

NORMAL POOL EL.690.0'] 

1'- s" RIPRAP ON 9" 

FILTER lr B 9"FILTER I 

DEPTH VARIES FROM 5'-o" TO 15'-o" 

I MEDIUM TO DENSE, FINE TO COARSE 

SAND, SOME GRAVEL ALLUVIAL I 

AND/OR OUTWASH MATERIALS ) ___J 

40 

~ 'l:? hrv CLAY, LITRE SAND AND FWE 

GRAVEL I TYPE A CCMPIICTED FILL../ 

TYPICAL DAM SECTION 

0 40 

--- -- SCALE IN FEET 

I'" 22' -to" .. 11'-5" ~~---11'5"·-----j 

.,~~AM - .,~· 

I

'.! CROWN OF DAM 

EL. .~Z.04' I '}A lt!:T I 

80 

4" TOPSOIL AND SEEDING 

4----

-~'' 

STiFF TO VERY STIFF CL..etEY SILT WITH 

SCME SA~O AND GRAv'EL ftLLTNQIAN TILL) 

i'-6" RIPRAP 

9" FILTER J[ 

9" FILTER I --4" TOPSOIL t..·~: SE~)IN..J 

I 

{SILTY CLAY' LITTLE SAND AND FINE I l

- '"'~""" . ~~""'"' 7 I 

r-------\ j 

DETAIL A 

o a ~ 

-- SCALE -----~ IN FEET 

t'-6" RIPRAP ON 9" 

FILTER li B 9" FILTER I 

AIN 

ORGANIC TOPSOIL AND WEATHERED 

ALLUVIAL MATERIAL 

CLINTON POWER STATION 

FINAL SAFETY ANALYSIS REPORT 

FIGUIRE 2.4-14 

TYPICAL DAM CROSS SECTIO~ 
Principal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee (Owner) Clinton Power Co. 

2. 

3. 

4. 

5. 

5. 

Plant name _-=...:...:..:.;=~--,------- Clinton Dam name ___ ..:.M:.::a..:.i n:.:.....:D:.::a::;.;m ___ ...,..._ 

NRC Docket No. 50-461/462 

Location: State Illinois County De Witt _i miles fro!!: Clinf,.\1 

Do'ltnS tream population centers 

Name Middletown Populati.on --------- Distance 22 mj 

Rad. Hazard (Cat. I): No 

Dam Characteristics: 

Purpose Normal cooling water 

Type l:iomogenaus earthfi JJ 

Height _56_._8_' _________ _ 

Length _3o_o_o_' _________ _ 

Crest \-li dth 22' 

----------- Slopes -=-3 ~= 1~----------

Inundation Hazard (L, M~ H) 

Elevations: 

Top 711 8' 

Spillway -=..69::.:0~'-------­

Norm. Pool ~69~0'!-'-:-------­

Max. Pool 708.8 

-~----------- Freeboard 3.0' 

------------ 7. Hydrology: 

Drainage area 296 sq miles Surface area 4895 acres 

Storage: normal 74t200 acre ft Maximum -----------

Spillway type Ogee (service), Open (emergency) 

Discharge Cap. 33,200 cfs (service), 102,700 (emergency) 

8. Year construction started-------- completed Oct. 12 , 1977 

9. Licensed by Illinois Dept. of Transportation 4/7/76 

10. Regular inspection: Seepage, settlement, horizontal movement. Monitoring 

frequencY unknown. 

11. COE Inventory Reference !I ------------------------

12. References FSAR Sec. 2.4, 2.5.6, 9.2.5 -----------~--~---------------------

Prepared By: 

B-7 
co 

I 

co 

------·-- ~--~---------------------··-

t 8AffU OIK( 

..L.A.I<.f NOHI)At W S £l 69Q_Q_ 

~ WS....lb. tz50 y- ___-=:::;::::JI ~ 

Ulllt.IAT£ H[AT SINK 

BOTTON £L. 668.5 

I 

·'' 

t &A.fflf OIKE 

1/EL 616 0 

,o· ..:o.. 11:,'-o" - .. _ ...... ~ ---

J -o" SOIL CEMENT '\ 

II ----- 'COWPACTEO BACAFILL (TYP[ A Jl. 

-

~ 

5 

{__ 

I.O(NIN.) ,.. SOTlOM (Jf £)(~::~---- -~~~ ILUNOrAiiJiu_------,;JM~UnrSECTJQN B 0 

~ 

Yl 

SCAL[ N FHT 

1: su:a•.,:_;.c,(~ OAM 

jT/E:..67~0 t:-:f. ~:~:::~.C~M~N~T I_ ~Q-..::~--- -:j 

c-

__ _!E_tl..!•!!7ll~5'----------;;:-;;;;;~

EL 668 5 51---=,.~ 

.-:::.:::---< ~ 1L _{!._§_ 10 ~ 

-:::-- . -

t~~ 

z'-~· SOIL CEMENT----------;-__:__---:::-::.:_-------- 6 :NOOM /9' COMPACTED BACKFILL ---=- -5 fcOMPA~TEO :UACKfU ITVPE A'."-. L ~--------------:::::::.___ ~~~(MINI 11::::,_ 1'5"- l.5 ~ 

_ (TYPE Cl ----- --~ ------01, """~ UOT!~~-EXCAVA~~~- ILLINOIAN TILL -------ffJUJ~ ... -=• I IK>'-o"l -- ------ _o_•~ ~~ ------------ --· -- -- ---1 

' ' ' SECTJQ!L_~- o 

~ 

lO 

NOTES 

I REFER TO FIGURE 2 4·23 FOA LOCATION Of SECTIONS 

ULTIMATE HEAT SlhK 

BOTTON fl. 6685 ~ 

- Jl l51111N I 

-ULTIMATE HEAT SINK 

&:;;T":"OM £: ... 669 5 

' 

CLINTON POWER STATION 

FINAL SAFETY ANALYSIS REPORT 

FIGURE 2.4-24 

ULT I MAlE !tEAT S IIIK SECT IONS 
Principal Design Features of 

On-Site £lams 

Date: June 1982 

1. Licensee (01·sner) CTinton Power Co. ---------------------------------------------------- 2. Plant name Clinton Dam name Submerged Category I Dam --------------------------- NRC Docket No. 50-461/462 

3. Location: State Illinois County _D_e __ w_i t_t __ _ b miles fror.: (l;.,b) 

4. Downstream population centers 

Name Middletown Popu 1 at ion __ ;:.;62::..;6::.._. __________ __ Distance 22 -=-=----

5. Rad. Hazard (Cat. I): Yes Inundation Hazard (L, 1-1', H) None 

6. Dam Characteristics: 

Purpose Emergenq cooling water Elevations: 

Type Homogenous earthfi 11 Top 675' 

Height 17' Spillway 

Length 2350' Norm. Pool 675' 

Crest Width 30' Max. Pool 675' 

Slopes 5:1 Freeboard 

7. Hydrology: 

Drainage area Surface area 112 acres 

Storage: norma1 650 acre-ft Maxir.1um 650 acre-ft 

Spillway type None 

Discharge Cap. 

8. Year construction started ---------------completed ___ 19_7-'-7_+ ____ _ 

9. Licensed by -----------------------------------------------

10. Regular inspection: No routine inspection of submerged dam for seepage or 

settlement. Monitoring of sedimentation but frequency unknown. 

11 . COE Inventory Reference # -------------------------------------------------

13. Comments Soil-cement mixture, 2 feet thick, covers outside of dam for 

drawdown and seepage protection. Submerged Category I dam isolates an area of main 

Reservoir. 

Prepared By: 

B-9 
.,., 

I 

..... 

0 

-------, 

6 .,,. ... ·~~·· ,._ .................... ~., ., ._ ... ;, ......... ,, ..... t:-. -I•" C.• ,.. .. _., i JJ~::';:~.,.!:; .. ; ..... -,;:,.~ .. ,., fN,QI'If & ..,...,..;~,,.1' ,, .,. ' 

JJ" (,' ,...._ ....,. ~~-~-, ~ r ..... •' p ..... ,,.,.., .,~ :.~ =•• ~.!:~·· ·:.· ··-~·;_::-,~., ~;.;=-;?:-·_···\"'~- -!!:.:::"' .. •li. · ruao' 1 • ... , --......___,~}•' 

""''-"'"-

1'~·-=--

~-----·-";' ~-- "'"~' - -~";.. .z. -----

~•~·bzu2i ' .. \ /-'··- · r · ... --.._ -!... Zl'- - ' \ \ ) '. \ ( ', 4 \. -·--- ,. ,,,., .,.,,._ .... 

"G'.:::.-1 ~ 

• :1 .. ~IU-1 ...... ,.,.,.._,..,,...,.. ,I Jr .... _.. ',£!l • -- .. •o;4 ......._ ·~ _,;.,.. ',..,, •I' _,,.,..-~ ... -.; .. ,. ..... 

. !. ,, .,\ .......... ~. --......._ 

~I ·. \ \ .. \ . I •I'· \ .. ·,,I, .. _... ---- 1 

I \ ,,,· \<.: -,-\ ~ ""1 -' '"' ') --.. ----- I 

•. , _..,/ ', ,·( :,·\,· \\: \ \ .. -~- ________ :::::~:;:!_~--- ---~--- ~-"!'J w •••••• 

------------ - . '\ .. \: '. '' X - --1 ... - - ~::-:=~ !:!L.:=·.:::.ic~-===-*"'" . --.-~ : r o~-- "C_ '""''"*1. '-·········1 

::-.:".~;: , 

t.: ', T;r;:.:!';,.;,' ' . ' \ ~:~~"~ ·'[--.',--~ ........ ) -·-····~-- .. - .. ._.... .•. Z.-;::-;._,.;::-""~·- -z----~--

--};"=E:tfz::~~i;~.~r~:~~.- ~--= ·~== :~~ . -~-~- ~-- ~~;}~~~L-.o=:o=""'"'"'"'~-d,~~"-, ""='_occ=~-----

Ix.E.li<.£:.1.. .. -'.!d ~ M! !1 MfLt•.T~.I.J..Q.!:i 

t ~ .. I.stc...2L...Rte!!e..e . ..tM.OC.-'1!<!1.ti!. 

~:..-. . 

Iii'··-___ ~:..-=~C·-·· £>?" .;.~"(\! 

--):> -· ~ ~- .1\ I ~ ::-.-.-~,';- .; :..---- li 

/;>-r~: :/fi:.~-~~:: ._-· 

t '0,) ~ "7";(::- ~y ~ .. /~ --:-:::._ ~- •'1•-- "' ..-~ .~···{ -··I·'-·' _; __ ;:;::-__ ;:-: -·-·"' f... o ... , .......... .-•u.. •••• I ~ ,__, JQ··~· .. 

'J' ... :;t~- :;:...-.:-• .::::~-- &. ~ .._..., ,,._ 1 • Ill .. • c•••• n eo .... ...,. !.:bZ,7 ~ .!I ~~;::.•··-:· .... ·-··-···~-~, .. ~ I . . , -J .. --- 1 --'---- U.2. T Q!;.~L.:!r 1-----"'-:.. ___ T, ____ = _w-:;~---;;--..._ -'>li.... 2L.l..4Aitl_.f!d~l1M'-!:!.L 

• I I ~...,.. .. ""? \ f~:';;7 L,---...._, 

" pe TAll ·c: f'AU fi..AIUlL!s;"_.llJiAL!l . .Ou ILU 

llUAJ.L.~ 

~....0C.l~J. .. 

•. 1 . , .. ! rrik! 

:) . - --"·---..~--- .-. ·~- ..... '1::«",.:;::::;:_. ·-=~----- ' . ""' --~~;-' -------------- L~_;.. .... -/. 'L.,. ___ 

_ __....-:J 

-----~£1-~i:r.:~~t; -~; ... t;;;; .. ! ! 

....,... ! ay<_,.,,w •-~- . - ~,;.-~- QVI!b' 6\JILD .. _QfAClfl>AM 

~ru tQtt Et'.9 Jlf.lHJ. .. RI2~1!YI~'£..~lS;l!2!:l 

t>.~·-..,·~-: ·: !~ ~ ~:;~.':::·--~~.! .. -=·---~~ ... ., .. ~~--~ "\ -,'1._ 

C"~h- ':~ _; .':-'-::_~ "~-L:fl 5ernou <J;) llJM.\~Ctlf Pt: AI( S f S 

FINAL SAFE Tv A.'4Al¥SI:ia REKlfH 

UNifS I .. UIJ 2 

S C R DAM fMBANKMfNT 

StCitON AND Of TAl.$ 

;~ol ,.~ -·2 ... 17 
Principal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee (Owner) Texas Utilities Generating Co. 

2. 

3. 

4. 

5. 

6. 

7. 

Plant name -=.:;:.:.:.:.:..:..;:......:....;:.;.:..:....,..~----- Comanche Peak Dam name Squaw Creek Dam 

r!RC Docket No. 50-445/446 

Location: State Texas County Somervi 11 mi 1 es fror.: 

Dm·mstream population centers 

Name Glen Rose Populat~on 1,550 (year 1970) Distance 4.5 mi 

Rad. Hazard (Cat. I) : No Inundation Hazard (L, M~ H) 

Dam Characteristics: 

Purpose Normal cooling water Elevations: 

Type 

Height 

Length 

Crest Width 

Slopes 

Hydrology: 

Rockfill 

150' 

4360' 

20' 

3:1 

Top 796' 

Spi 1lway _7_7_5_' --------

Norm. Pool 

i~ax. Poo 1 ____.z~gwo'-L.z -------

Freeboard 5.3' -------------

Drainage area 64 sq mi Surface area ---------- Storage: normal 152,000 acre-ft Maxi~um 

--~---------------- Spillway type Ogee (service), Open channel (emergency), 783' msl 

Discharge Cap. 22,500 cfs (service) 108,600 cfs (emergency) 

8. Year construction started ---------------completed __ 19_8_0-=+~-

9. Licensed by Texas Dept of \:later Resources. #2871 

10. Regular inspection: According to the National Dam Safety Inspection Program 

by the Texas Sept of Water Resources for the COE 

11 . COE Inventory Reference # ---------------------------------------

12. References SER Sec. 2.4, FSAR Sec. 2.4, 2.-5.6 -------------~---------~-------------------------

13. Comments ---------------------------------------------------------

Prepared By: 

B-11 
:I 

B-12 
Principal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee (01-mer) Texas Utilities Generating Co. 

2. Plant name Comanche Peak Dam name Safe Shutdown Dam --------------~-----------

NRC Docket No. 50-445/446 

3. Location: State --~T~ex~a~s~-- County Somervi 11 miles frol'!l 

4. Downstream population centers 

Name Glen Rose Population 1,550 (in 1970) Distance 4.5 mi 

5. Rad. Hazard (Cat. I): Yes Inundation Hazard (L, M~ H) None :..:..=;.::....,....__ 

6. Dam Characteristics: 

Purpose Emergency cooling water Elevations: 

Type Rockfill Top 796 1 

Height _.....,._ ________________ __ Spi 11 way _:...:.76:::..:9:..! •.::.5_1 --------

Length 1470 1 Norm. Poo 1 ..:..7.!..;72::::.;·:..:5:....1 ___________ _ 

Max. Pool 790.5 1 

Freeboard 5. 51 

~~-------

7. Hydrology: 

Drainage area 3. 47 sq miles Surface a rea -----------------

Storage: normal 367 acre-ft Maximum 457 acre-ft 

Spillway type Open channel 

Discharge Cap. --------------------------------------

8. Year construction started--------------- comjJleted May 1979 

9. Licensed by ------------------------------------------------

10. Regular inspection: 

11 . COE Inventory Reference # ------------------------------------------------

12. ~eferences SER Sec. 2.4, 3.8, FSAR Sec. 2.5.6, 9.2.5 

13. Comments The Safe Shutdown Dam isolates an area of Squaw Creek Reservoir 

Prepared By: 

B-13 
SECTION C·C SHl ~;, ....... 

5ECT!Cr-J D·D CH'l x..a., .•.•.•. 

5E.CTION e.-=. CH} ac...w.&-1······ 

DIKE. 5ECTIONS 

Figure 3.9 Dresden 

B-14 

! 

I 

~, 1J.O.o't 
Principal Design Features of 

'Jn-Site Dams 

Date: ·June 1982-

1. Licensee (Owner) Commom·1ealth Edison Co. 

2. Plant name Dresden Dam name Spray Pond Impoundment --~~~~~~-------

~RC Docket "o. 50-237/249 

3. Location: State Illinois County Grundy 9 mi 1 es fror.: Morns 

4. Downstream population centers 

Name Morris, Ill. Popu 1 at i_ on __ 8_,_19_4 ______ _ Distance 9 mi · 

5. Rad. Hazard (Cat. I) : No Inundation Hazard (L, r-r. H) H 

6. Dam Characteristics: 

Purpose Norma 1 cooling water Elevations: 

Type Earthfill Top 527' 

Height 17' Spillv1ay 

Length Norm. Pool 522' 

Crest Hidth Max. Pool 

Slopes 3:1 Freeboard 5' 

7. Hydrology: 

Drainage area Sur7ace area 1275 acres 

Storage: norma 1 8,100 acre-ft i~axbui:l J2...250 acre-ft 

S;Ji llway type 

Discharge Cap. 

8. Year construction started-------- completed _1._.9w.Z_._l ___ _ 

9. Licensed by ------------------------

10. Regular inspection: 

11. COE Inventory Reference # 1L 43 '3 ~--~~--------------------------------

12. References FSAR, Region III Paul Pelke 

13. C.om:nents Embankment has failed in past and is a hazard to nearby school on the 

------------------------------------------ west. Spray pond is filled by water pumped from Dresden Island Reservoir. 

Pre;)ared By: 

B-15 
'::'• ~•tst •o&own ,r-rr, 0[1'&1~ 

DAM SECTION 

SCAt,.[ •If 'UT 

'0• C•tST llQ&Ow&• 

/""iii :)(1'&1~ 

~---J.~--------------------~-----~_._:_:_:_~_··_~ __ :~~~,_·~_.:_·_~_!~_._·_·_·"~---~-'------~~----~~~~~~so..-r=if ,,,., ,~,!!..I~ 

···o· 

Jz-.o• I 

DIKE SECTION 

<l·o· t ,·.o· 1·0" 

\ 1" 'a-.CTl'O &H~...,.[ 

.... 

CREST DETAIL 

B-16 

ALABAMA POWER COMPANY 

JOSEPH M. FARLEY NUCLEAR PLANT 

FINAL SAFETY ANALYSIS REPORT 

STORAGE POND EMBANKMENT C~EST 

DETAIL AND COMPACTION DATA 

FIGURE 2B7-17 
Principal Design Features of 

On-Site Dams 

Date: ,June 1982 

l. Licensee (Owner) Alabama Power Co. 

2. Plant name Farle~ Dam name Category I Holding Pond 

Embankment 

NRC Docket No. 50-348/364 

3. Location: State Alabama County Houston miles fror.: 

4. Do'tmstream populetion centers 

Name -------- Population --------- Distance ___ _ 

5. Rad. Hazard (Cat. I): Yes Inundation Hazard (L, M~ H) 

6. Dam Characteristics: 

Purpose Cooling towers makeup, emerg. Elevations: 

Type Homogenous earthfi 11 Top 195' 

Height 55' Spillway 186' 

Length 3900' Norm. Pool 185' 

Crest Width 30' Max. Pool 192.2' 

Slopes 4:1, 3:1 Freeboard 2.8' 

7. Hydrology: 

Drainage area 325 acres Surface area 100 acres 

Storage: norma 1 1570 acre-ft Maximum 2370 acre-ft 

Spillway type 

Discharge Cap. 2020 cfs 

8. Year construction started --------completed __ 1_9_7_9_+ __ 

9. Licensed by------------------------

10. Regular inspection: 

11. COE Inventory Reference#----------------------------

12. References FSAR Sec. 2.4.8, 9.2.5 

13. Comments Failure of embankment would drain right into Chatahoachie River. 

Pond is filled by pumping from river. 

Prepared By: 

B-17 
OJ 

I 

...... 

(X) 

!r:tWhlh n:.cn -

.... 1.4171 

'111::.•110 IIQC.k """'' ,.,. aoc.c ~"·'-

--~--~~~~~~r.n~~td~~~~~-~~~~ 

TY.I!ICAL SECTIO,_, ~···so" 

l..tiTA •• 'I. ~-NINH.T ....... 

i~---

1 .. ,.,,.... ... ,. 

. 11--- . {:0"""' .... 

/r!;-f:J~~ 

-..li!E.I!!..M6 

SHEARON HARRIS NUCLEAR POWER Pl 

Carolina Power & Light Company 

FINAL SAFETY ANALYSIS REPORT 

MAIN DAM 

PROFILE & TYPICAL SECTION 

FIGURE 2.6.6·2 

REF DWG: CAR·2167·G·6241IREV 21 
Principal Design Features of 

On-Site Dams 

Date: ,June 1982 

1. Licensee (Owner) Carolina Power & Light Co. 

2. Plant name (Shearon) Harris Dam name Main Dam ~~~~----------~-

rlRC Docket No. 50-400/401 I 402/403 

3. Location: State North Carolina County Wake __,;=-=---- miles fror.: 

4. Downstream population centers 

Name ___ L,_.l....;.l_i n.....:g:...t_o_n __ _ Popu 1 at i. on __ 1_2_4_2 _____ _ Distance 15mi. 

5. Rad. Hazard (Cat. I): No/Yes , Inundation Hazard {L, N', H) Not by functlon 5ut by design 

6. Dam Characteristics: 

Purpose _No+-rm_a_l_c_oo_l_i_n..::.g_w_a_t_e_r __ _ 

iype ____ Ro_~~k~f_il_l ______________ __ 

Height __ l_o_a_~----------­

Length __ 1_5_5_0_' ---------

Crest l~idth _2_5_' ________ _ 

Slopes 2:1 -~~---------

7. Hydrology: 

Ora ina ge a rea _ _..;..7..;...1 .....:s~q_m..;..i;...;l...;:;e.:;..s -------

Storage: normal 70,000 acre-ft --~-------

Elevations: 

Top 2co• 

Spillway 220' 

Norm. Pool 220' 

Max. Pool 249' 

Freeboard 11. i I 

Surface area --------- Maxi r.1um __ 2_7_0.:.., O....;O.....:O_a..;_c;;.;.r.....:e'--..;..ft..:;__ __ _ 

Spillway type _ _..;..Og~e;.;:e-....:.;:(2:;..!.) ___________________ _ 

Discharge Cap. 14,190 cfs 

8. Year construction started completed 1979 + ------------ 9. Licensed by-----------------------

10. Regular inspection: Contains settlement monuments, piezometers and seepage 

monitors. Monitoring frequency unknown. 

11. COE Inventory Reference II -------------------------

12. References FSAR Vol. 4 Sec. 2.5.6, Vol. 3 Sec. 2.4 

13. Comments -----------------------------------

Prepared By: 

B-19 
...... Tiw.JILDA...OR 

~'-~l..'l .... 'l.CIQ 

TYPIC:A~ ~e,cTlOioJ 

,.jTA. 1, .. 00 i~ICU ~t•OO j•t."Z.O' 

SHEARON HARRIS NUCLEAR POWER PLANT 

Carolina Power & Light Company 

FINAL SAFETY ANALYSIS REPORT 

AUXILIARY DAM- PROFILE AND 

TYPICAL SECTIONS 

FIGURE 2.5.6-4 

B-20 

1 ~~-g 1 ~~~~a;.1.~o !tU· 18•~ ""P )! .. CO 

.... :ru. I ! '::~~·~;~~;.;~.~~~ i .-~-~~-~ ·~::!;~ 

:i."e;.!/~ . I r-~~~ ... .c~.-.:.-~r-~'.000 ,~· 
1. Licensee (Owner) 

Principal Design Features of 

On-Site Dams 

Date: June 1982 

Carolina Power and Light Co. 

2. Plant name (Shearon) Harris Dam name _ _.A~u.!.Cxu.i..~..1 l.u· aur_,_y..JD.!..!ia!llJm~.--____ _ 

NRC Docket No. 50-400/401/402/403 

3. Location: State North Carolina County Wake _..:;==---- miles fro~ 

4. Downstream population centers 

Name _-.:L:..:i..:.l...:..l ,.:..:. n.:.;;gt...:t.=.o n:.,:__ __ Popu 1 at ion __ _..:....:12=-4:..=2:..___ ___ _ Distance 15 mi 

5. Rad. Hazard (Cat. I): Yes 

6. Dam Characteristics: 

Purpose --=E"'-m;.;;.e:....rg""'e~n;.;;.cy"---'c;.;;o~o..;..l ,-'. n.:.ogc...;.;.wa;;;..t:.:e~r __ 

Type __ ;.:;Ro::.:c:.:.:k:.:..f...:..i 1:...1=----------

Height _..:.7..:c3_' ----------

Length _....;4..;:..06.:.:0:....'---------

Crest Width --=2:..::0_' ---------

Slopes 2.5:1 

7. Hydrology: 

Drainage area --=2..:.... 4.:.:3:.....::.sq~m:...:..i...:..le::..:s:._ __ _ 

Storage: normal 5250 acre-ft 

Inundation Hazard (L, M, H) 

Elevations: 

Top 260' 

Spillway 252' 

Norm. Pool 252' 

Max. Pool 256' 

Freeboard 4.0' 

Surface area ----------- MaxiQUm 7,200 acre-ft 

Spillway type -~O~e::.:e"----------------------

D i scha rge Cap. _ ..... 5~0.::.30=--:::c:...:.f.::.s _____________ _ 

8. Year construction started-------- completed __ 1..:..97;...;9:.......+~-

9. Licensed by -----------------------

10. Regular inspection: Settlement monuments and piezometers. No seepage 

monitors. Monitoring frequency unknown. 

11. COE Inventory Reference !! -------------------------

12. References FSAR Sec. 2.5.6, 2.4 

13. Comments Auxiliary Dam isolates an arm of Main Reservoir 

Prepared By: 

B-21 
OJ 

I 

N 

N I 

Varies 

Varies 2-d'V~ies 

-1 

-< 

"''J n r 

):a ... > r- - "''J ~ Ill .,., r > 

"' ...... .., Ul r ~in ~fll .,., c: I'll 

::0 ::0 -4 0 

):a .,., o( 0 r- ~ 

0 !'l zC ...... U1 ~ z ~ I r -1 .,., ...... ~ -< n ° iii ~ ::ulll In I'll -1 In , > In 0-t .,., ::u - n -4 0 

;::! z 0 

:z 

15'-o" Varies 

Dike 

Top of Dike Elevation 

6-d'ls'-d' 

Varies from 705'-o" to 

706'-i'(Final After 

Settlement)---.. ---1---.. 

T~ of Road Ele~atlon , ,. Vanes from 705-8 to 707-3 

~ Undisturbed Wedron silty clay till ~ 

LEGEND 

I. Not to acale . 

Normal Water 

Lt'~el El. 700'.-0" 

Remove 

T9P Soil 

2'-d' 

xis tine; 
Principal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee (Owner) Comr:1om·1ea lth Edison Co. 

2. Plant name LaSalle Dam name Cooli~g Pond Dike --~~~~----~~---------- ---------------------~ 

rmc Docket ilo. 50-373/374 

3. location: State Illinois county __ L_a_sa_l_l_e __ miles fror.: 

4. Downstream population centers 

Name -------------- Population ------------------- Distance 

5. Rad. Hazard (Cat. I)~ No 

6. Dam Characteristics: 

Purpose Nonnal cooling v1ater 

Type Homogenous earthfill 

Inundation Hazard (L, M~ H) 

Elevations: 

Top 707' 

-------

----------------------- Height 40' Spillway ------------------ Length 37,942' Norm. Pool 700' --~~------------

Crest \olidth 12' 

~~------------------- ~1ax. Pool ------------------- Slopes ___ --.:..3..:..: 1"'--------------- Freeboard ------------------- 7. Hydrology: 

Drainage area --------------------- Surface a rea 2, 058 acres 

Storage: not·mal 31,706 acre ft Haxii.lum ------------------- Spi 11 way type ------------------------------ Discharge Cap. 

8. Year construction started completed 82+ --------------- -~~-------

9. Licensed by -------------------------------------

10. Regular inspection: 

11. COE Inventory Reference# ---------------------------------------------- 12. References FSAR Sec. 2.4, 2.5.6 

13. CDm~ents Cooling pond contains an excavated depression for emergency cooling 

water purposes. 

Prepared By: 

B-23 
co 

I 

N 

~ 

!ii 

~ ., 

"' b ELEVATION 

760 -

.:H!:_ST 

O:J 

...,a 

z <= 

~~ 

.. ~ 

w"' 

'Z~ 

t!" 

I RIPRAP 

747 Ln~~~~ SNSO p':''D fUL_~F'OOL ,/ .. l -~ 

El £VAT I ON 

~LEVATION 740 ,. 740 - Ot'l-2 

'~*"' "'ffi" ~-;~ ---

,~·~ •~> ~ I 

S'-'lFACE I ' ~~---~ ' 

720 

700 

680 -

660 -

640 -

,~~.,.... 

.,;,t:_ QPAINA 

:;: _- .,_c,-\ / ut BLAI,,U 

\--------~-c~ \_ I~ ------

BLANKET 

OISCHAR~~:~E~IPE WITH (OFFSET 62 , ) ··~1t:.~." 

SlAIIIL 1n0 GAUUNU11AHA t.tY~l 

_ ;tECT IC}N I; 1_, 

Lt:<,lNO 

1

- ]S SlANDAMO Pl'NEfiUTI0/1 

IH·)IS lANCE 

1 IILOfl~ f-TI 

BOlliNG fti'-"IINAHO 

( 

E""::;.l~.K"~~·~ 

~----. 

'100 ... ------ r ~o ., ,. ~0 )• ," 

SO.Lf IN H::lit 

0 10' JO• 

~t<llilCMAL 

0 10' JO' 

~'11:1\llr...t.L 

':1. 

~ 

~ I 

u 

i -~ 

.............................. 

~--

............. 

-- ...... 

..... ----,11 

___ 7 ________ --

PREPARED 

FDUNOA T I ON _j 1 

EMBANKt-ENT 

..... / ....... _ ,/ 

___ .:>.-- _____ / 

LAW ENGINEERING TESTING CO 

CHAHLOrT .E NORTH CAROLINA 

DUKE POI'i~" _n COMPANY 

~clJUIRE NL:CLE.!R SUTtON 

/ 

/ 

ELE"VAT I ON 

- 760 

- 740 

- 720 

._ ?L.O 

- 680 

_ 72C 

- 700 

- 680 

lie • : ~ : . ~ •. 

~e .• F • ;<.:re 
Principal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee (Owner) Duke Power Co. 

2. Plant name _.;..M;.::c.:;G=.u1.:...:.r...:e:.__ ________ Dam name Standby Nuclear Service Water Dam 

NRC Docket No. _.....;5;.;:0;_-..;:.36::..;9;.:../~3.:...70:...,__ 

3. Location: State North C'arolina County Lincoln ------ miles fror.: 

4. Downstream population centers 

Distance Name -------- Population--------- ---- 5. Rad. Hazard (Cat. I): Yes 

6. Dam Characteristics: 

Purpose _E=m;.;.:e:;.:.r .... g..:::ce:.:..nc:::.y'--"c..:::co.:;;.o.:...l ,...:.. n.:.og~,...;.;.w.::.a t.:;;.e::.:r __ 

Type __ ..:.H:.::o.;;.:m=.og4 e:.:.n:.::o..::u::.s_e::.:a:.:r..::t:.:..:h.:..f1.:....1.:...1:.__ __ _ 

Height __ 6::..:0=-'-----------

Length --'1-=2..::..60::....' ________ _ 

Crest Width -=.36=--' ---------

Slopes 2. 5: 1 

7. Hydrology: 

Ora ina ge a rea __ 1:..:.7...:.1-=.;ac:..:r...::e:.:::s ____ _ 

Storage: normal 578 acre-ft 

Inundation Hazard (L, M~ H) 

Elevations: 

Top 748.5 

Spillway 

Norm. Pool 740' 

Max. Pool 742.5' 

Freeboard 6.0' 

Surface area ---------

Maximum -----------

Spillway type --------------------------

Discharge Cap.-~-----------------

8. Year construction started-------- completed 1980 + 

9. Licensed by------------------------

10. Regular inspection: Piezometers-weekly (6 mos.), monthly (6 mas), -~quarterly 

thereafter until 1 year after initial unit 1 operation~. Vertical and Horizontal movement 

and V. N?tched Wier.(seepage). Monthly (6 mas) and quarterly until 1 year after 

11. COE Inventory Reference # -------------------------

12. References FSAR Appendix 2G 

13. Comments Monitoring frequency after 1 year after initial unit 1 operation is 

unknown. 

Prepared By: 

B-25 
Typical cross-section not available 

B-26 
Principal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee (Owner) Duke Power Co. 

2. Plant name McGuire Dam name Wastewater Collection Basin Dam --------------~-----------

NRC Docket No. 50-369/370 

3. Location: State North Carolina County Lincoln miles frol!l 

4. Downstream population centers 

Name --------------- Population ---------- Distance ---- 5. Rad. Hazard (Cat. I): No Inundation Hazard (L, M~ H) 

6. Dam Characteristics: 

Purpose Wastewater Storage Elevations: 

Type !:lomogecous eadbfj ll Top 697' 

Height 32' Spillway 

Length 190' Norm. Pool 

Crest \·/i dth 20' Max. Pool 

Slopes 2:1 Freeboard 7' 

7. Hydrology: 

Drainage area 171 acres Surface area 

Storage: norma 1 Maxir.1um 

Spillway type 

Discharge Cap. 

8. Year construction started completed 1980 + ---------------

9. Licensed by ----------------------------------------

10. Regular inspection: 

11 . COE Inventory Reference # ----------------------------------------

12. References FSAR App. 2G -~~~~~~-------------------------------------

13. Comments ---------------------------------------------------

Prepared By: 

B-27 
OJ 

I 

N 

00 

1--

UJ 

UJ 

'!: 

7 

0 

1-

"' > 

... 

-' 

... 

640 

~ 620-, 

600 ~ 

------·- ·-· '\} 

COOL! NG POND 

----

ORIGINAL/ 

GROUND SURFACE 

EXPLA'iATION 

ZONE MATERIAL 

CD {!: IMPERVIOUS FILL 

Q) RANDOM FILL 

G) SAND ORAIN 

0~@ r;RAVEL 

® @ RIPRAP 

® TOPSOIL & SEEDING 

G) FOUNDATION !LOOSE SAND, 

SILT ANO FIRM CLAVI 

® F OUNDAT I'JN 

!GLACIAL TILLI 

WI.I.E. 

l. WHERE Z[)NE\1) MATERIAL OCCURS, THE 

CUTOFF TRENCH INTERCEPTS ZONEm 

AND PENETRATES 2 FEET INTO ZONE(J 

ZONE \1) WAS ASSU~EO AS SHOWN FOR 

CONSERVATISM IN SLOPE STABILITY 

ANALYSIS. 

2. FOR DESCRIPTION OF THE 8 ZONES 

SEE FIGURE 2.5-19. 

® 

SEE NOTE 

0 

"'ORIGINAL GROUND SURFACE 

>!EFERE'iCE • 

S~E FIGURE 2.5-46 FOR LOCATION 

OF CROSS SECTION 

~ 10 20 40 60 

~=·....,..-- r= 1 

SCALE IN FEET 

CONSUMERS POWER COMPA:-IY 

MIDLAtiD PLANT UiUTS 1 & 2 

FINAL SAFETY ANALYSIS REPOR1 

Dike Section G 

(SK-G-125, Rev 2) 

FSAR Figure 2.5-53 

I/'!! ~·· ·i;j--·· J 
Principal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee (Owner) Consumers Power Co. 

2. P 1 ant name _.:..:M..:.i d:..l,_,a:..:.n,_,d __ ___,._,.. _____ Dam name Coo 1 i ng Pond p j ke 

NRC Docket No. 50-329/330 

3. Location: State Michigan 

4. Downstream population centers 

Name ----------- Populati.on --------- Distance 

5. Rad. Hazard (Cat. I): No 

6. Dam Characteristics: 

Purpose _N..:.o:..;.rm..;.;.;.;;:a...;..l._c:..:o:...:o..:.l...;..i ;.;.na........,;.w:...:a:...:t.;::.er;__ __ _ 

Type __ ..;;E.;;.;.ar_t"""h'"'"f-'-i "'-11'----------

Hei ght __ 2:..:8:..;.'-----------

Length ------------- Crest Hidth ----------- Slopes 3:1, 3.5:1 

7. Hydrology: 

Inundation Hazard (L. M~ H) 

Elevations: 

Top 632' 

Spillway 627' 

Norm. Pool 627 t 

Max. Pool 627. 

Freeboard 5.0' 

----

Drainage area ----------

Storage: normal 12,600 acre-ft 

Surface area ~~.;::.:..:~;____ 880 acres ___ _ Maxi~um 12,600 acre-ft 

Spillway type---------------------------

Discharge Cap. 

8. Year construction started-------- completed ._1...;;.9.;..78~---

9. Licensed by------------------------

10. Regular inspection: 

11. COE Inventory Reference#-----------------------------

12. References FSAR ---~"""--------------------------------------

13. Comments The coo 1 i ng pond contains an e;(cavated depression ·for emergency 

cooling \'later purposes. 

Prepared By: 

B-29 
ltiP ltAP 

w.Ax. WS EL 2~ ~-0\ 

NORMAL WS EL.Z~Ct.O~....:== ~ 

~ 30' 'I- TOP OF ROAD 

~;;::::::;:::::;:· :::::........_ CREST EL. 2"·0' 

GltOUNO 

liNE 

TYPICAL CROSS SECTION 

0 10 100 

I I I ICALI- PIIT 

B-30 

ISO 

I 

DAM AND SPILLWAY 

NORTH ANNA RIVER 

NORTH ANNA POWER STATION 

UNITS I AND 2 
Principal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee (Owner) Virginia Electric Power Co. 

2. Plant name ........!N.!.::o:.!.r..:o.t:.!.h..:.A~n~na~-........ ----- Dam name North Anna Dam 

NRC Docket No. 50-404/405 

3. Location: State _.:..v,_·r ..... g.:..in~i:..::a __ miles fror.: 

4. Do'lmstream population centers 

Name -------- Populati_on --------- Distance 

5. Rad. Hazard (Cat. I): No/Yes ; Inundation Hazard {L, 1·1', H) Not by tunct1on but 

6. Dam Characteristics: by design 

Purpose Normal cooling water Elevations: 

Type Homogenous earthfill Top 265' 

Height _ ___:_95;;..'---------- Spillway 

Length 5000' Norm. Pool 250' 

Crest Width ...;3;..;;0~'--------- Max. Pool 255' 

Slopes 2.5:1 Freeboard 10' 

7. Hydrology: 

---

Drainage area 343 sq miles 

Storage: normal 305,000 acre-ft 

Spil1'11ay type concrete gravity 

Surface area ---------

Maximum 373,000 acre-ft 

Discharge Cap. _1:.::0:.:5.z., O::.:O::.::O:....:::.cf~s=---------------

8. Year construction started------- completed 1975 + 

9. Licensed by -----------------------

10. Regular inspection: Horizontal and vertical displacement, seepage, pore 

pressure. Monitoring frequency unknown. 

11 • COE Inventory Reference t1 _.:..VA;_;___I_7_7..:;.o.;;:2 __________________ _ 

12. References FSAR Sec. 2.4, 3.8.3 

13. Comments This reservoir provides normal cooling and make-up water to the 

standby service reservoir. 

Prepared By: 

B-31 
OJ 

I 

w 

N 

TOP OF 

COMPACTED 

t CREST 

20' 

DUMPED ROCK SLOPE PROTECTION 

MAXIMUM W.S. ELEV. 315' 

----- -- BOTTOM 

ELEV. 305' 

ELEV. l-2' SELECT EARTH LINING 

_7 '-.... ~COMPACTED SAND FILTER 

2' COMPACTED COARsE OJ I "-coMPACTED COARSE FILTER FILTER BLANKET J 

~~VARIES 

2' COMPACTED SANDFILTER BLANKET CROSS SECTION OF DIKE 

SCALE I II= 20' 

IMPOUNDING DIKE 

SERVICE WATER RESERVOIR 

NORTH ANNA POWER STATION 

UNITS I AND 2 
Pr1ncipal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee (Owner) Virginia Electric Power Co. 

2. Plant name North Anna Dam name Service Hater Dikes & 2 --------------~-----------

NRC Docket No. 50-404/405 

3. Location: State Virginia County ------ miles fror.: 

4. Downstream population centers 

Name ------------ Population---------- Distance ______ _ 

5. Rad. Hazard (Cat. I): Yes Inundation Hazard (L, M~ H) 

6. Dam Cha racteri st i cs: 

Purpose Emergecc'l ccclicg lltatet: Elevations: 

Type ecckfi l l Top 320' 

Height Spi 11way 

Length Norm. Pool 

Crest Width Max. Pool 

Slopes 2·]. 3:] Freeboard 5.0' 

7. Hydrology: 

Drainage area 9 acres Surface area 

Storage: nonna 1 88 act:e-ft Maxir.1um 

Sp i 11 way type 

Discharge Cap. 

8. Year construction started--------------- completed-------

9. L i ceased by ----------------------------------------------

10. Regular inspection: Horizontal and vertical displacement. seopage 

Monitoring frequency unknown. 

11 . COE Inventory Reference # ----------------------------------------------

12. References FSAR Sec. 9.2, 3.8.4. 

13. Comments Service Water Dikes 1 and 2 impound a separate reservoir which 

obtains make-up water from Lake Anna. 

Prepared By: 

B-33 
Typical cross-section not available 

B-34 
Principal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee (Owner) Duke Power Co. 

2. 

3. 

4. 

5. 

6. 

Plant name Oconee 

NRC Docket No. 50-287 

Location: State South Carolina County 

Dovmstream population centers 

Rad. 

Dam 

Name Population 

Hazard (Cat. I): Yes 

Characteristics: 

Purpose _-J;JEm.we::..~r..!dg~e.u:nc~-,y~c,..a'l.l.o.J..ll.u· n~g~wa ..ute::..~r:.:..__ 

Type ---------------

Height -----------------

Length ------------- Crest \~i dth ------------ Slopes----------------

7. Hydrology: 

Drainage area ----------

Storage: norma 1 

Dam name Submerged Dam 

mi 1 es fror.: 

Distance ---- Inundation Hazard (L, M~ H) None 

Elevations: 

Top ----------------

Spillway-------------

Norm. Pool 

Max. Pool 

Freeboard ----------------

Surface area ------------- Maximum ----------------

Spillway type --------------------------

Discharge Cap.-~-----------------

8. Year construction started---------------- completed --------

9. Licensed by --------------------------------------

10. Regular inspection: 

11. COE Inventory Reference fi ---------------------------------

12. References ----------------------------------------------- 13. Comments Dam isolates an arm of I ake Keowee created by Lake KeOIMee Da~ 

and Little River Dam. 

Prepared By: 

B-35 
to 

I 

w 

C) 

2.5' SOIL- CEMENT-\ 

\NORMAL MAX. OPER 

W.S.EL. 4!!.0 r·EL.VARIES 

\ . . . 30.0-35.0 __ \_::~ ___ - ---

\·MIN. OPER. -~-cW.S. EL. 25.5 

3 I I ---

\.NORMAL MAX. OPER. 

1 W.S. EL. 4!!.0 

~L 

EMBAt~ENT 116-" 1 STABILIZED ROAD 

25' I ~: ,I i. EL. VARIES (67.00 MAX., 65.75 MIN.) 

~ 3 ! I 

S~ NO CtjiMNEY 

TOP SOIL 8 SEEDING 

······ ... 

COMPACTED CLAY FILL 

VARIES 30'- 45' 

1

-12' -- .... --j 

--·~ BERM I 1·1 INSPECTION I 1 . ' ROAD 1 

·.:: t DITCH 

t RELIEF WELLS- _j 

t;;-:;gl ------·--.---------------:---:-~ "'_,_ --- -~,I INSPECTION TRENCH SAND DRAINAGE BLANKET 

TYPICAL SECTION THROUGH EMBANKMENT 

SCALE: I" • 30' 

t 

OIIKE 

12' -STABILIZED ROAD 

~ t TOE DRAIN \ 

t TOE DITCHNOTE: SECTION SHOWN REPRESENTS 

TYPICAL SECTION. SAND DRAINAGE 

BLANKET AND TOE DRAIN APPLIES 

TO APPROXIMATELY 6% OF 

EMBt-'JKI~ENT FERIMETER FCR 

MORE. DETAILS OF VARIATIONS 

IN THIS CROSSECTION SEE F.S.A.R. 

SECTION 2.!5.6. 

-- _sz.. .1 

r IJ' ~EL.52.0 ~-1..}_ L. .. ----~~ , .. 2.5' SOIL-CEMfiH "7 

\

MIN. OPER. 

'] ~ ~--~L 25 5 

CLAY FILL .. "" 

TYPICAL SECTION THROUGH DIKE 

SCALE: 1"•30' 

v SOUTH lEXAS PROJECT 

UNITS l & 2 

COOLING RESERVOIR 

EI\GAI~KfiEIH AND INTERIOR DIKE: 

TYPICAL SlCTIP'IS 

rJ(,I_'!;f. 2 ~.8-3 
Principal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee ( 01-mer) Houston Lighting and Power Co. 

2. Plant name ___;S:...;o..;;;u..;.t;.;.h_;T:...;e:.:..:x..:;:.a.:..s_..,.._..------- Dam name Cooling Pond Embankment 

NRC Docket No. 50-498/499 

3. Location: State _T_ex_a_s ___ _ County Matagorda mi 1 es fror.: 

4. Downstream population centers 

Name -------- Population --------- Distance ___ _ 

5. Rad. Hazard (Cat. I): _N_o _____ _ 

6. Dam Characteristics: 

Purpose Normal cooling water 

Type Eartbfill 

Height -~~..:r_ ________ _ 

Length ------------- Crest Width 16' ----------- Slopes 2. 5: 1 , 3: 1 

7. Hydrology: 

Drainage area----------

Storage: normal ---------

200,000 acre-ft 

Inundation Hazard (L, M~ H) 

Elevations: 

Top 66' 

Spillway 49.s· 

Norm. Pool 49' 

Hax. Pool 51' 

Freeboard 15' 

Surface area 7,000 acres 

Maximum 220,000 acre-ft 

Spi 11 way type _--~,Q~gfl'ie'Cie.,.., ~s ..... l ..... i""'d ..... i wr:JSH9f"a..~;.t~es~----------------

Discharge Cap. 4,000 cfs 

8. Year construction started-------- completed------

9. Licensed by ------------------------

10. Regular inspection: Piezometers, seepage monitors. vertical and horizontal 

movement. Monitoring frequency unknown. 

11. COE Inventory Reference#-------------------------

12 R·eferences FSAR Sec 2.4, 2.5.6 . --~~~~~~~~-----------------------

13. Comments --~De~s~i~g~n_ba_s_i_s_fl~o~o~d~w~il~l~c~a~us~e~e~m~b~an~k~m~e~n~t_t~o~f~a~il~·~~S~ur~r~o~u~n~d~in~g~a~r..;.ea~-----

is a barren flood plain. Cooling pond filled by Colorado River by pump. 

Prepared By: 

B-37 
ltOT(' 

ell'fST COV(~[CI ••n• ':ll'USIO[CI 

SlOfo[ ~0'1 •IIM .. IC£11ll'tT 

s.t:IIVICI: ... T[JI ,_0100 

1110-.t.r.. NGH W£r£JIU¥Hll..q:s.o 

____,.,..,.--

-~-

~ ~ ~ ~ ~ m o ~ ~ ~ 

;l05~•..C£ '~ •ur <ftOI,I C! .. TDILNOI: 

TYPICAL SECTION - NORTH OAM 

~,. 

;:II(Sf COv[III[O Will' :IIUSM(O 

STO.C •o- T • .III',IC.AIII.ITT 

st:II¥1C( W£t1U 1'0110 

·>H :•<~ :~~·.· . .:. :' ·- . ~ ~ -~- ... 

SOUTH CAROliNA ELECTRIC & GAS CO. 

VIRGIL C. SUMMER NUCLEAR STATION 

:-ypical Section :->orth i:lam 

?i..;ure 2.5-133 

'"o'"''"'l "'~" WATEit L[¥1:1. n. u~o. 

liCIT( 

$[(1'£G[ COIITil'Ol ll.IJIUT IS CONSTitUCT[O 

0' lt(SIOU£1. ClAY 

no' · · · ' 300 110 ti.O 2..0 !20 tOO !IO oiO 140 •20 •00 10 

460 

so •oo oto ••o ••o 110 zoo 220 z•o 110 210 Joo no J40 no 110 •oo •to 310 

TYPICAL SECTION - SOUTH CAM 

3'-0" RIPRAP 

ZONE 0 ROCK 

2-3'-0- FILTERS 

40' 

2o' zrt I 

t:£__ 

~~~~~.-..o,--;ozno--~•oo;,~~~--i~,-~.o~~~~--~o--~~~~~~--~~--~~~~,oo~~.~,o~~,~~~~~~ DISTANCE FROM CENTERLINE, FHT 

TYPICAL SECTION-EAST DAM 

B-38 

AKENDHEKT 7 

AUGUST I 1978 

SOUTH CAROLINA ELECTRIC & GAS CO. 

VIRGIL C. SUMMER NUCLEAR STATION 
Principal Design Features of 

On-Site Dams 

Date: Jyne 1982 

1. Licensee (Owner) South Carolina Electric and Gas Co. 

2. Plant name .....::.Su::.:mm=e:..:.r __________ Dam name North-Hest, South & East Dams 

NRC Docket No. 50-395 

3. Location: State South Carolina County Fairfield miles fror.: 

4. 001'/DStream population centers 

Name Peak Populati_on __ s_ao ______ _ Distance 2 mil~ 

5. Rad. Hazard (Cat. I): Yes 

6. Dam Characteristics: 

Purpose _E_m_e_rg::..e_n_c..:.y_c_o_o_l_i_ng.::....-w_a_t_e_r __ 

Type ___ H_o_m_o..:;g_en_o_u_s_e_a r_t_h_f_i _11 ___ _ 

Height 129 1 , 98', 28' 

Length 3400 1 , 765 1 , 1150 1 

Crest Width --------~--- Slopes 3:1 -------------- 7. Hydrology: 

Drainage area ----------

Storage: normal 1,200 acre-ft 

Inundation Hazard (L, M~ H) 

Elevations: 

Top 438 1 

Spillway----------

Norm. Pool 425 1 

----------------- Max. Poo 1 430 1 

---------- Freeboard 1.4' 

---------------

Surface area --------- Maximum 1,600 acre-ft 

Spi 11 way type None --~-------------------------

Discharge Cap.-----------------------

8. Year construction started completed December 1979 ----------

9. licensed by-----------------------------

10. Regular inspection: Vertical and horizontal moyement. piezometers, slope 

stability, drains. Monitoring freqyency unknown. 

11. COE Inventory Reference# ----------------------------- 12. References FSAR Sec. 2.4, 9.2.5 

13. Comments These 3 seismic Category I dams isolate an arm of Frees Creek Reservior. 

Prepared By: 

B-39 
0:1 

I 

.j:::o 

0 

4 '5E!:DED T.:>P::OIL -~ " 

ld-d ""'" 

rl 3 ,r-:::·· 

/ 

/_jl 

/I 

/ 

/ 

/ 

/ 

MAIN DAM 

?l'j:. ~I'TAIL "A" 

~M~l Ol"e"A TI>JC. Le"eL ;:L.f0/!>7.0' 

/ 

et..I02S.O' I I I I~ l:c (//. I "'" "'TiNG 6RAl71a 

<; j f>- t2c, .o'6iAAIJIJLAR~I~~ eu:IC:T --r-_ _L ------ - ------ ------~- ~ 

;L' I 

c:;.'f-.!A~. SIZE I<IPFAP 

-----~ ~--~--~-- -------~---wl ____ f OZo<: < <0 "E vA..-iON -~7)~-

Tl PICAL 5E.CTION 

MAIN (;>AIV'\ 

'jl 

Rev. 6 

10/81 

WOLF CREEK GENERATING STATION 

UNIT NO. I 

DeTAIL ·;::;:.. 1 FINAL sAFETY ANALYSis REPORT 

FIGURE 2.5-llSa 

TYPICAL SECTION - HAIN DAM 
Principal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee (Owner) Kansas Gas & Electric Co. 

2. Plant name Wolf Creek Dam name Main Dam --~~~~~--~-----------

NRC Docket No. 50-482 

3. Location: State Kansas County ____ Coffey _.;:.... __ miles fror.: 

4. Downstream population centers 

Name ---------- Popu 1 at ion -------------- Distance ____ _ 

5. Rad. Hazard {Cat. I): _No~------

6. Dam Characteristics: 

Purpose Normal cooling water 

Type l:lomogej:IOIJS eartb4>i 11 

Height .....J..uu..;..._ _________ _ 

Length 12,260 1 

Crest Width 28 1 

--------------------- Slopes 3:1 

7. Hydrology: 

Inundation Hazard (L, M~ H) 

Elevations: 

Top 11 oo' ---------

Spillway ~Ja~a~a~~---------------

Norm. Poe 1 ... J.u.08o.Zt...1 __________ _ 

Max. Pool 1095 1 

----------- Freeboard 5.0 1 

------------------

Drainage area 27.4 sq miles Surface area -------------- Storage: normal 111 280 acre-ft Maxi~um 5 -----------------

Spillway type 100 1 Ogee (service) 5 500 1 Open c11t (emerg) 

Discharge Cap. 60,076 cfs (combiRed) 

8. Year construction started -----------completed ___ 1_98_2""""""""+ ___ _ 

9. Licensed by-----------------------------

10. Regular inspection: Pore •.vater pressure. settlement, piezometers, and 

horizontal movement is monitored as per Reg. Guide 1.70. 

11. COE Inventory Reference§------------------------------

12. References FSAR Sec. 2.3, SER Sec. 2.4. 

13. Comments The non-seismic Category I reservoir is formed by the Main earn and 

Saddle Dams I through V. 

Prepared By: 

B-41 
Typical cross-section not available 

B-42 
Principal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee (Owner) Kansas Gas & Electric Co. 

2. Plant name __ W::.:o~l'-!.f......:::.Cr:..:e::.:e:..::k:__ _______ Dam name Saddle Dam I through V 

NRC Docket No. _...:::5.::=.0-_48=2 ___ _ 

3. Location: State Kansas _;..;.:;~..;;..;:,. ___ _ Collnty _ _.:C...;:co..:....ff.;..;e=><y~- miles fror.: 

4. Downstream population centers 

Name -------- Populati.on ---------- Oi stance ---- 5. Rad. Hazard (Cat. I): No 

6. Dam Characteristics: 

Purpose Cooling lake retainers 

Type Homogenous earthfill 

Height 5' - 38' 

Length -------------

Crest Width-----------

Slopes 3:1 --------------- 7. Hydrology: 

Drainage area 27.4 sq miles 

Storage: · norma 1 -------

Inundation Hazard (L, M~ H) 

Elevations: 

Top 1100' 

Spillway ~N~o~D~e-------------­

Norm. Pool ...;1...:.0.:..8:_7_' -------

Max. Pool 1 095' -~---------- Freeboard 5. 0' __;,~-------------

Surface area --------- Maxi~um ----------------- Spillway type None -~~------------------------------------

Discharge Cap. ---------------------------

8. Year construction started--------- completed 1982 + 

9. Licensed by ---------------------------------

10. Regular inspection: Settlement monuments only. Dam No. 4 also has piezometers. 

Monitoring frequency unknown. 

11. COE Inventory Reference IJ ----------------_:..-----------------

12. References FSAR Sec 2. 3 _..;__ ________________________________________________ _ 

13. Comments All but Saddle Dam #4 are founded above elev. 1087• which is the 

normal water level. These dams act only to retain the reservoir during severe 

flooding. See also Wolf Creek Main Dam. 

Prepared By: 

B-43 
56CTIOW A-A. 

T .. ,._, 

=-

1 WOLF CREEK GENERATlNG STATION 

UNIT NO. I 

FINAL SAFETY ANALYSIS REPORT 

FIGURE 2. 5-117 

TYPICAL SECTION - UHS DAM 

B-44 
Principal Design Features of 

On-Site Dams 

Date: June 1982 

1. Licensee (01·mer) Kansas Gas & Electric Co. 

2. Plant name \~ol f Creek Dam name Submerged Category I Cooling Dam 

NRC Docket No~ 50-482 

3. Location: State Kansas County Coffey miles fror.: 

4. Downstream population centers 

Name -------- Population------------ Distance ------ 5. Rad. Hazard {Cat. I): Yes 

6. Dam Characteristics: 

Purpose _E=m:.:.;:e:.;..r...il.g.::.en:..:.;c::..=y~c.::.oo=-l.:...i:....;.n...il.g:...w.:..:.a=-t;:.;e:.;..r __ _ 

Type __ H;.:,;o;;.;,;m.;.;o..-.g.;;.en:..:..o;;..:u:..:;s;.....;:.e.::;.a rt:.....;;.;.h.:...f:...i ..;..11.;.._ _____ _ 

Height _..:..;18=-'--------------

Length _1.:...7:...0:....;.0_' ------------

Crest \~i dth 20' 

~--------------

51 opes __ 4_: 1'---------------

7. Hydrology: 

Drainage area ----------

Storage: normal 

Inundation Hazard (L. W, H) _N_o_ne ____ _ 

Elevations: 

Top 1076' 

Spillway -~~IQ<HR~&f-----------­

Norm. Pool +~lQ~S""'?'-'----------­

Max. Pool ---------- Freeboard -----------------

Surface area 95 acres ---------- Maxi::1Um ------------------- Spillway type None --~---------------------------------- Discharge Cap. 

8. Year construction started __ 9..;../_78 _____ completed---------

9. Licensed by---------------------------------

10. Regular inspection: Lateral movements, seepage and sedimentation buildup. 

Monitoring frequency unknown. 

11. COE Inventory Reference H ---------------------------

12. References -~FS~A~R~Se~c~-~2.:....3~-----------------------------------

13. Comments Submerged Category I Cooling Dam is within the on-site Main Reservoir. 

Prepared By: 

B-45 

Appendix C 

Principal Design Features of 

Uranium Mill Tailings Dams 

Located in Non-Agreement States 

Bear Creek Uranium Mill 

Fed. American Partners Uranium Mill 

Gas Hills Uranium Mill 

Highland Uranium Mill 

Lisbon Mine and Mill 

Lucky McGas Hills Uranium Mill 

C-1 

Moab Uranium Mill 

Shirley Basin Uranium Mill 

Shootering Canyon Uranium Mill 

Split Rock Uranium t~ill 

Sweetwater Uranium Mill 

White Mesa Uranium Mill 
Pr1nc1pal Design Features of 

Uranium Mill Tailings Dams 

Date July 1982 

1. Licensee (Owner) Rocky Mountain Energy Co. (Bear Creek Uranium Co.) 

2. Mill Name Bear Creek Uranium Mill Dam Name ------------------ 3. NRC Docket .a 40-8452 rr 

4. Location: State Wyoming County Converse 

5. Dam Characteristics: 

Type Earthfi 11 Crest l4idth 20' 

Height 60' Slopes 2: 1 , 3d 

Length 1500' Freeboard 10.0 I 

- Present top elev. 5160 Proposed final elev. 

II 'L•' ilt 

..m.i l.lfS"T'R£AI1 

---- ~ o v.Jr..l S-ry. e: l\l1 

Typical Cross-Section 

6. Hydrology: 

/ 

'1 --~,~~·~~ .. .rr _ , !'" ~nell~ 

~!~Q ~------------~ 

I 

5"142 

Surface area 26 acres ~~~~-------------------------------------------

Storage: normal 2770 acre-ft 

7. Year construction started stage 1, 1977 

max. 3570 acre-ft 

completed stage 2, 1981 

8. Regular inspection Daily inspection for any release of radioactive materials. 

9. References Chen and Associates Construction Reports Feb. 2, 1981 and April 21, 

1978. 

10. Comments Before the addition,slopes were 3:1 and 2.5:1, they now are 2:1. 

Licensee will raise the dam to 5180' in 1983. 

Prepared by 

C-2 
Principal D~sign Features of 

Uranium Mill Tailings Dams 

Date July 1982 

1. Licensee (Owner) Federal American Partners 

2. Mill Name Fed. American Partners Uranium Mill Dam Name Tai 1 ings Dam No. 1 

3. NRC Docket .IJ. 40-4492 r. 

4. Location: State Wyoming County Fremont 

5. Dam Characteristics: 

Type Homogenous earthfill 

Height 49 1 

Length gao• s.o• 

Present top elev. 6445 Proposed final elev. 6445 -------------------

Typical Cross-Section 

?RE.oJIOUS 

t e--'&M.lt(I'1£N'T" 

6. Hydrology: 

3 

( ~rr.c•r~ll 6Ait.T"f<IL\.) 

~---------------~------~6396 

Surface area 23 acres + 

Storage: normal max 419.2 acre-ft . ----------------------- 7. Year construction started comp 1 eted 1978 

-------------- 8. Regular inspection Daily visual inspection (documented) 

9. References 

f·1ay 5, 1978 

F. M. Fox and Associates 11 Proposed Extensions of Tailings Dams 1 & 2 11 

10. Comments This pond is used for storing fluids which are pumped from tailings 

pond No. 2 (see next page). No more raises are planned. 

Prepared by 

C-3 
Principal Design Fea~tures of 

Uranium r·1111 Tailings Dams 

Date July 1982 

1. Licensee (Owner) Federal Americal Partners 

2. Mill Name Fed American partners Uranium Mill Dam Name Tailings Dam No. 2 

3. NRC Docket # __ ---=:4u.D~.=-.::r.4:t.49~2;..._ ______________________ _ 

4. Location: State _.~~,Wy~o.wm.u.i.u.n~g ------ County Fremont 

5. Oam Characteristics: 

Type Homogenous earthfjll 

Height -~---------------­

Length--------------

Present top elev. __ .... fi S.._.lu.D'-----

Typical Cross-Section 

6. Hydro 1 ogy: 

Surface area 70 acres 

Storage: norma 1 

Crest 14idth __ ...!=.l:o!...'----------

Slopes ----..lt..:.:..~.l _________ _ 

Freeboard ___ _..s~·,l,Lo_•·---------

Proposed final elev • .w6:..~.5.ulO"'-'--------

" 7..o' " 

max. ---------------- 7. Year construction started completed ___ ll..::l9!.LZBa__ _____ _ 

8. Regular inspection Daily visual inspection (documented} 

9. References F, M, Fox and Associates. "Revision of Design for Tailings Dam!?." 

,July 19, 1 gza 

10 C t Fluids are decanted to pond #1. No more raises are planned. • ommen s 

C-4 Prepared by 
Principal Design Features of 

Uranium Mill Tailings Dams 

Date July 1982 

1. Licensee (Owner) Union Carbide Corp. 

2. Mill Name Gas Hills Uranium Mill Dam Name ------------------ 3. NRC Docket # __ 4_0_-2_9_9 __________________________________ _ 

4. Location: State Wyoming Natrona 

----------------- County 

5. Dam Characteristics: 

Type Zoned earthfill 

Height~~-------------------­

Length -------------

Present top elev. _ _.z .... a ..... n .... 3_' ___ _ 

Typical Cross-Section 

6. Hydrology: 

Surface area 24 acres 

Storage: normal 300 acre-ft 

7. Year construction started 

12 1 

Crest \4idth -------------

Slopes 3:1 upstream, 2:1 downstream 

Freeboard 5.0' 

----------------------------- Proposed final elev. 7003' 

C...orll't.e-~1> 

~A-loll:> 

~ 

C. I-"''{ 

------------------

420 acre-ft 

max. -------------------

completed 1979 

--------------------- 8. Regular inspection Daily, weekly and monthly documented jnspectjons, 

9. References Final Environmental Statement (NRC) July 1980. Dames and Moore 

Report Sept. 10, 1979. 

10. Comments This pond is part of an underground disposal system and contains 

only liquids. One other disposal site is being reclaimed at present. All futur-e 

disposal will be underground. Open pipe spillway at elev. 6998. 

Prepared by 

C-5 
Principal Design Features of 

Uranium Mill Tailings Dams 

Date July 1982 

1. Licensee (Owner) Exxon Minerals Corps. 

2. Mill Name Highland Uranium Mill Dam Name ------------------- 3. NRC Docket# _---..:4!.::0~-~8.!..:10:::.::2=-------------------------

4. Location: State -~W.L.YO:::.:m.:.:..i:.:.n.:.;:qL._ ______ _ County Converse 

5. Dam Characteristics: 

Type Earthfi 11 

Height 125 1 

Length 

Present top elev. 5250 1 

Typical Cross-Section 

6. Hydrology: 

Surface area 

Storage: normal 

7. Year construction started 

8. Regular inspection 

Crest Width ---=2:..::0:...1 _________ _ 

S1opes 2:1 upstream, 2.5:1 downstream 

Freeboard ---------------------------- Proposed final elev. 5250 1 

~~~-----------

I 

].. 

fiLL 

' / 

5"".ot~O I 

fl\t-.~g 1: 

_ oR\G I NI\L bAM 

max. _____ 9~2~0~a~c~r~e~-~ft~----------

comp 1 eted _....l9ot.~o8.u.1 _______ _ 

9. References Dames and Moore Report 11 Design of Centerline Constructed Height 

Increases" Oct 26, 1976 

10 C t Phase 2 of raising was completed in 1981 at elev. 5250'. No • ommen s 

more raises are planned. 

C-6 Prepared by 
Principal Design Features of 

Uranium Mill Tailings Dams 

Date July 1982 

1. Licensee (Owner) ...;R.:..;i~o-=-:.A l.:..;gi!,;o;.:;;m:....;:.;Co;;.:r..tp:..._ __________________ _ 

2. Mi 11 Name ·_...;;;;..;...;;=.:..:....;;..;...;..;..:.=....=.:.:.;::_;:.:..:...:....:... Lisbon Mine and Mi 11 ________ Dam Name Lower Pond Dam 

3. 

4. 

5. 

NRC Docket # 40-8084 

Location: State Utah 

Dam Characteristics: 

Type Homog~nous earthfi 11 

Height _.:..7.::.5_' ---------

Length -----------

Present top elev. 6661 I 

Typical Cross-Section 

6. Hydrology: 

Surface area 

Storage: normal 

7. Year construction started 

8. Regular inspection 

County San Juan 

Crest ~~idth --J..>J..-----------

Slopes 1.5:1 upstream. 2.5:1 downstrPam 

12.0 I 

Freeboard --------------------------

Proposed final elev. 6671' 

'!IR£\1\0V.S 

Ctl~fr!Jit.Mt£ Nj 

(:s:H91.'tll'4o f"ll.l.) 

---------------

max • _--~.ol 2~0.LLOJ.,.,CCa.,c.r~e::.-f"-t'---------

camp 1 ete d _--~,.;19::u8;)..1'----------

9. References Dames and Moore Report "Proposed Raise of lower TailiRgi Ci~,· 

March 17 1981. 

10. C011111ents A 55' upper pond dam also exists and would flow jnto the lower nand 

if it failed. Dam was raised by the downstream method No more raises 

are planned. 

C-7 Prepared by 
Principa1 Design Features of 

Uranium f1ill Tailings Dams 

Date July 1982 

1. Licensee (Owner) Pathfinder Mines Corp. 

2. t~ill Name Lucky McGas Hills. Uranium Mill Dam Name _#~~.-4..:__::D:.:::a~m _____ _ 

3. NRC Docket# __ 4_0_-_22_5_9------------------------

4. Location: State Wyoming ---------------------- County Fremont 

5. Dam Characteristics: 

Type Zoned earthfill 75 1 

Crest l·lidth ---------------

Length 2200' ~~~---------------- Freeboard ------------------------------ Present top elev. 6243' 

-------- Proposed final elev. __ 6_2_5_6_' ______ _ 

~---.J, {..N3' 

Typical Cross-Section 

I 

6 !\8 

6. Hydrology: 

Surface area \ 45" (\(. ( E.l. ~n7) 

Storage: normal lo'3ao.c.f+(£1.6:1i8);3~1foa<"H(EI.m7)max. 4,000 acre-ft (elev. 6243) 

7. Year construction started 1961 ( 19Bo- -¥s) completed e 1 ev 6243' , 1981 

8. Regular inspection Weekly by the owner, monthly by a qualified mine engineer. 

Daily visual inspections. 

9. References Chen and Associates Soil and Foundation Investigation April 1978. 

"Staged Construction #4" June 12, 1981. 

10. Comnents Proposed final elev. is 6256' msl. Dams are situated in series 

at this mill, with plans for a total of 5 dams. 

C-8 Prepared by 
Principal Design Features nf 

Uranium Mill Tailings Dams 

1. Licensee (Owner) Atlas Minerals 

2. Mill Name Moab Uranium Mill 

3. NRC Docket # 40-3453 

4. Location: State Utah 

,Jo 

J:: Dam Characteristics·: 

Type Homogenous earthfi 11 

Height 

Length 76oo• 

Present top elev. 

Typical Cross-Section 

6. Hydro 1 ogy: 

Surface area 

Storage: normal 

7. Year construction started 

4-oSS 

' ' ' ' ' 

' ftt£-l"''""s ,_,, (t\<!.~NII:.t\E.MT ' 

' 

Date July 1982 

Dam Name ----------------

County Grand 

20 1 

Crest \~idth --------------

Slopes 2.5":1 2·4-:1 

Freeboard ----~~~-------------------

Proposed final elev. --~4~07~6~·-----------

.mr.' IE 'l-o' 

...tof.n11 SO:.tT'f+ +-erAST" 

~He>ArJI<'MWIS 

max. ---------------------- completed 1982 + -------~---------

8. Regular inspection Monthly piezometer readings at 28 points. Daily visual ~ncl 

quarterly documented inspections, annual technical evaluation. 

9. References Dames and Moore Report of Stability Analysis June 4, 1981. 

10. Comments Bordered by the Colorado River. Three seepage areas have been 

observed: one on Northern, Western and Southern embankments. Dam raised by 

upstream method on N, S, E sides and by downstream method on west side. 

Prepared by C-9 
Principal Design Features of 

Uranium Mill Tailings Dams 

1. Licensee (Owner} Pathfinder Mines Corp. 

2. Mill Name Shirley Basin Uranium Mill 

Date July 1982 

Dam Name #5 Dam ~--~-------------

3. NRC Docket# _ 4_0_-_6_62_2 __________________________ _ 

4. Location: State Wyoming 

-------------- County Carbon 

5. Dam Characteristics: 

Type Homogenous earthfill 20' 

Crest Width -------------

Height __ 6::..:0:...'------------

Length __ 6_,_o_o_o_' --------

Slopes 2:1 upstream, 2.5:1 downstream 

Freeboard -~~---------------

Present top elev. 7110' Proposed final e1ev. _....~,7...~,1 ..... 10"'--' ------

'7110' 

Typical Cross-Section 

70~0' 

6. Hydrology: 

Surface area 

Storage: normal max. 3300 acre-ft 

7. Year construction started 1975 

---------- comp 1 eted __ 1_97_7 _______ _ 

8. Regular inspection Daily visual inspections. weekly water leyels and 

monument measurements. and monthly piezometer water levels 

9. References Dames and r4oore Report "Redesign Final Stage No. 5 Tailings 

Dam" , Dec 3, 1976. 

10. Comments Dam built by downstream method. Where height of dam is less 

than 30', no chimney drain has been installed. Dams are situated in series 

at this mill. 

Prepared by 

C-10 
Principal Design Features of 

Uranium Mill Tailings Dams 

Date July 1982 

1. Licensee (Owner) Petrotomics Co. 

---------------------------------------- 2. Mill Name Shirley Basin Uranium Mill Dam Name ------------------- 3. NRC Docket # 40-6659 --------------------------------------------- 4. Location: State Hyoming Carbon 

------------------------ County 

5. Dam Characteristics: 

Type Homogenous earthfill 

Height ____ 7_5_' _______ _ 

Length __ 6_, 9_0_0_' _______ _ 

Pr:sent top e1ev. 7100' 

Typical Cross-Section 

6. Hydrology: 

Surface area 160 acres 

Storage: normal 

7. Year construction started 1963 

50' 

Crest \·1idth ---------------

Slopes _2_._s_:1 ___________ _ 

Freeboard 12' 

------------------------------------ Proposed final elev. 

-- """--, 

?R.S:VI.,v.'S ', 

ettfYrt.~Kttt:~-r ', 

~o' 

' 

max. --------------------------

completed 1980 ----------- ------------------ 8. Regular inspection As per Reg. Guide 3.11. -----------------------------------------------

9. References Chen and Associates Construction Report and Drawings, Jan. 16, 1980. 

10. Comments Do not know if future raises are planned. 

C-11 Prepared by 
Principal Design Features of 

Uranium Mill Tailings Dams 

Date July 1982 

1. Licensee (Owner) Plateau Resources Inc. 

2. Mill Name Sbootering Canyon llranjum Mj11 Dam Name ------------- 3. NRC Docket # --~.L:.C.o..:2J:l.------------------------

4. Location: State --~,llu.t..g,a.uh _______ _ County Garfield 

5. Dam Characteristics: 

Type Zoned earthfj J J 

Height 85 1 (St-..~e I), 1181 (Stoae E) 

Length -----------

Present top elev. 4433 1 

-------

Typical Cross-Section 

6. Hydrology: 

Crest Width Stage I - 80' Stage II - 20' 

Slopes ----~~------------- I Freeboard /3 -~-

Proposed final elev. __ 44_6_6__(:....S...:.t_ag:::..e_I_I~) __ so; 

SA.tJb 

(;(1.."\lltL. 

C. o tU!• L.£. 'S 

8oLC.'-"t>e:f\ S 

Surface area 68 acres (Drainage area - 222 acres) 

Storage: normal max. at elev. 4466 1 , 2800 acre-ft 

7. Year construction started comp 1 eted ...;.1..;;..98~0;;.._ ______ _ 

8. Regular inspection Visual inspection every work shift 

9. References Woodward-Clyde, Stage I Final Design report May 1979. 

10. Comments Dam to be constructed in two stages, stage I to elev. 4433' and 

stage 2 to elev. 4466'. Tailings will not be placed against the dam until 

C-12 Prepared by 
Principal Design Features of 

Uranium Mill Tailings Dams 

Date July 1982 

1. Licensee (Owner) Western Nuclear roc. ~~~~~~~~---------------------------------

2. 

3. 

4. 

5. 

Mi 11 Name ---"'~..l-lo-....l.lo.lo~~:..l;!.!JL.L.li!IUL....!.;.!..!..J..l------- Split Rock Uranium Mill Dam Name ----------

NRC Docket ..IJ. 

1T 40-1162 

Location: State Wyoming 

Dam Characteristics: 

Type Earthfill 

Height 50' 

Length 

Present top elev. 6410' 

Typical Cross-Section 

County Fremont 

Crest \~idth --------------

Slopes 5:1 upstream, 3:1, downstream 

Freeboard 3-5' 

------------------- Proposed final elev. 6444' ------------ C,cf/0' 

6. Hydrology: 

Surface area 

Storage: normal 225 x 106 ft3 (elev. 

64 f+T<O '"'"+) -

max. 300 x 106 ft3 (elev. 6444) 

7. Year construction started completed----------

8. Regular inspection 'Jl~d;1 o."'ol. Cl.!uo.rterlj doc\JWievde!..( ,·VIspec:f,~.,s al'ln.tJo..l iec!-.vuc-a.l 

evo.lvo.:t.~V\ . 

9. References D'Appolonia Construction Report, Feb. 1980 

10. Comments Dam rajsed by centerline method ysing coarser grained tailings 

fpr fj 11. final raise (to eley. 6444} estimated to pe jn 1990. 

Prepared by 

C-13 
1. Licensee {Owner) 

Principal Design Features of 

Uranium Mill Tailings Dams 

Minerals Exploration Co. 

2. Mill Name Sweetwater Uranium Mill 

Date July 1982 

Dam Name ------------------- 3. NRC Docket# __ 4_0_-_8_58_4 _________________________ _ 

4. Location: State Wyoming County Sweetwater 

------------- 5. Dam Characteristics: 

6. 

7. 

8. 

Type Zoned earthfill 

so• 

Height ------------------

20 1 

Crest Width ---------------- 2:1 

Slopes ---------------

Length 6,300• per•..,e.ter (l4-5o'x l?oo') Freeboard s.o• 

-------------------------------- Present top elev. 6680 Proposed final elev. 

U.I'STftltA~ ~· 

r,t.'o' "'o~ N<!f~J'T'Ilf£.A 1'1 

Typital Cross-Section 

~A~S 

"lo' 

Mill· 7' 

Hydrology: 

Surface area 60 acres 

Storage: normal 2,000 acre-ft max. 2,500 acre-ft 

Year construction started l~ZZ completed 1977 

Regular inspection Quarterl~ eiezometer readings and regular visual inseection 

for seepage. cracking etc. Fyll annyal inspection. 

9. References Dames and Moore Report 11Desjqn of Tailings Retention Basin11 • 

March 16. 1 977 

10. Comments The bench on upstream side is for elacement of tailings pipe and 

will eventually be covered. Estimated life of dam before it is filled with 

tailings is 11 years. 

C-14 Prepared by 
Principal Design Features of 

Uranium Mill Tailings Dams 

Date July 1982 

1. Licensee (Owner) Energy Fuels Nuclear Inc. 

2. Mill Name Hhite Mesa Uranium Mill Dam Name Cell 3 dike 

3. NRC Docket# _...:..40~-..:.8=6=81.:.,__ _____________________ _ 

4. Location: State Utah --~~--------------

County San Juan 

5. Dam Characteristics: 

Type Homogenous earthfi 11 

Height 42' 

Length 2,500 + 

Present top elev. 5610 

Typical Cross-Section 

6. Hydrology: Exca.va.fecl 

70. ,/,;,qs P()nd 

Crest \~idth ___ 20:::..'-----------

S 1 opes ....::3:..:.:~1---------------- __ _ 

Freeboard 5.0' 

~~----------------------

Proposed final elev. __,5:..l:l:6-~.l .... o ______ _ IE 1-D' ll 

Surface area eac'-l cell ~o oc "to Go cH. 

Storage: norma 1 max. -------------

7. Year construction started 1978 completed ___ 19_7_9 ______ _ 

8. Regular inspection Daily, manthJy1and quarterly documented inspections. 

Annual technical evaluation. 

9. References D'Appolonia Engineers Report. Tailings Management System, 

10. Comments Tailings are deposjted jn cells formed by successjye downstream 

embankments. Cell 1 (upstream) is used for evaporation; Cell 2 is being filled; 

Cell 3 dike is a safety dike tp retain spjlls from cell 2. A total gf 5 cells is 

planned. Dams do have spillways. Prepared by 

C-15 

Appendix D 

Principal Design Features of Offsite Dams 

Associated with Nuclear Power Plant Sites 

(Alphabetically by dam name) 
Principal Design Features of 

Off-Site Dams 

Dam Name - Chickamauga Dam 

Owners/Regulatory Agency - TVA/TVA 

Associated Nuclear Power Plants - Sequoyah and Watts Bar 

Relevance to Nuclear Power Plants - rlormal cooling water 

Type - Gravity/Earth Year Completed - 1940 

Height - 103•, s,aoo• long Capacity - 739,000 acre-feet 

River Impounded - Tennessee 

Principal Function - Hydroelectric 

COE Inundation Hazard - High COE Inventory # - TN6504 

Dam Name - Conowingo Dam 

Owner/Regulatory Agency - Susquehanna Power Co/FERC 

Associated Nuclear Power Plants - Peach Bottom 

Relevance to Nuclear Power Plant - Normal cooling water 

Type - Concrete gravity Year Completed - 1928 

Height - 98 1 

Capacity - 310,000 acre-feet 

River Impounded - Susquehanna Principal Function - Hydroelectric COE Inundation Hazard - High 

COE Inventory # - MD97 

Dam Name - Cowans Ford Dam 

Owner/Regulatory Agency - Duke Power Co/FERC 

Associated Nuclear Power Plant - McGuire 

Relevance to Nuclear Power Plants - Normal cooling water 

Type - Gravity/Earth 

Year Completed - 1963 

Height - 115 • 

Capacity- 1,092,429 acre-feet 

River Impounded - Catawba 

Principal Function - Hydroelectric 

COE Inundation Hazard - High COE Inventory#- NC132 

D-2 
Principal Design Features of 

Off-Site Dams 

Dam Name -Dardanelle Dam 

Owner/Regulatory Agency - Corps of Engineers/ COE 

Associated Nuclear Power Plants - Arkansas 

Relevance to Nuclear Power Plants - Normal cooling water 

Type - Concrete gravity 

Year Completed - 1969 

Height - 66' 

Capacity - 48€,200 acre-feet 

River Impounded - Arkansas 

Principal Function- Hydroelectric COE Inundation Hazard - High COE Inventory # - AR162 

Dam Name - Dresden Island Lock and Dam 

Owner/Regulatory Agency - Corps of Engineers/COE Associated Nuclear Power Plant - Dresden 

Relevance to Nuclear Power Plants - Normal cooling water 

Type - Concrete gravity 

Year completed - 1933 

Height - 29' 

Capacity - 12,000 acre-feet 

River Impounded - Illinois 

Principal Function - Navigation COE Inundation Hazard - Medium 

COE Inventory # - IL2 

Dam Name - Frees Creek (3 dams) 

Owner/Regulatory Agency - South Caroline Electric & Gas Co./FERC 

Associated Nuclear Plants - Summer 

Relevance to Nuclear Power Plants - Normal cooling water 

Type - Year Completed - 1976 

Height - Capacity - 400,000 acre-feet 

River Impounded - Principal Function - Hydroelectric 

COE Inundation Hazard - COE Inventory # - (Built after 1973 inventory) 

D-3 
Principal Design Features of 

Off-Site Dams 

Dam Name - Guntersville Dam 

Owner/Regulatory Agency - TVA/TVA 

Associated Nuclear Power Plant - Bellefonte 

Relevance to Nuclear Power Plants - Normal cooling water 

Type - Gravity/Earth Year Completed - 1939 

Height - 74' 

Capacity- 1,052,000 acre-feet 

River Impounded - Tennessee 

Principal Function - Hydroelectric 

COE Inundation Hazard - High COE Inventory # - AL1412 

Dam Name - Harriman Dam 

Owner/Regulatory Agency - New England Power Co./FERC 

Associated Nuclear Power Plant - Yankee Rowe 

Relevance to Nuclear Power Plants - Upstream flood potential 

Type - Hydraulic Earthfill 

Year Completed - 1924 

Height - 196' 

Capacity - 116,000 acre-feet 

River Impounded - Deerfield 

Principal Function - Hydroelectric 

COE Inundation Hazard - High 

COE Inventory # - VT25 

Dam Name - Jocasse Dam 

Owner/Regulatory Agency - Duke Power Co/FERC 

Associated Nuclear Power Plants - Oconee 

Relevance to Nuclear Power Plants - Upstream flood hazard 

Type - Rockfill 

Year Completed - 1973 

Height - 385' 

Capacity- 1,315,670 acre-feet 

River Impounded - Keowee 

Principal Function - Hydroelectric COE Inundation Hazard - High COE Inventory # - SC529 

D-4 
Principal Design Features of 

Off-Site Dams 

Dam Name - Lake Keowee 

Owner/Regulatory Agency - Duke Power Co./FERC 

Associated Nuclear Power Plant - Oconee 

Relevance to Nuclear Power Plants - Normal cooling water 

Type - Gravity/Earth Year Completed - 1970 

Height - 70' 

Capacity - 500,000 acre-feet 

River Impounded - Keowee 

Principal Function - Hydroelectric COE Inundation Hazard - High COE Inventory # - SC706 

Dam Name - Lake Robinson 

Owner/Regulatory Agency - Carolina Power & Light Co/FERC 

Associated Nuclear Power Plants - Robinson 

Relevance to Nuclear Power Plants - Normal and emergency cooling water 

Type - Earthfi 11 

Year Completed - 1900 

Height - 50' 

Capacity- 31,000 acre feet 

River Impounded - Black Creek 

Principal Function - Hydroelectric COE Inundation Hazard - High COE Inventory # - SC632 

Dam Name - Lake Wylie Dam 

Owner/Regulatory Agency - Duke Power Co./FERC 

Associated Nuclear Power Plants - Catawba 

Relevance to Nuclear Power Plants - Normal cooling water 

Type - Earthfill 

Year Completed - 1900 

Height - 57' 

Capacity - 282,000 acre-feet 

River Impounded - Catawba 

Principal Function - Hydroelectric COE Inundation Hazard - High COE Inventory # - SC687 

D-5 
Principal Design Features of 

Off-Site Dams 

Dam Name - Little River Dam 

Owner/Regulatory Agency - Duke Power Co./FERC 

Associated Nuclear Power Plants - Oconee 

Relevance to Nuclear Power Plants - Normal cooling water 

Type - Earthfill 

Year Completed - 1969 

Height - 155' 

Capacity- 1,273,000 acre feet 

River Impounded - Little River 

Principal Function - Hydroelectric COE Inundation Hazard - High COE Inventory # - SC531 

Dam Name - Montgomery Lock and Dam 

Owner/Regulatory Agency - COE/COE 

Associated Nuclear Power Plant - Beaver Valley Relevance to Nuclear Power Plant - Upstream flood potential Type - Concrete gravity Height - 35' 

Capacity- 57,500 acre-feet 

River Impounded - Ohio 

Principal Function - Navigation COE Inundation Hazard - Low 

COE Inventory # - PA128 

Dam Name - Pickwick Landing Dam 

Owner/Regulatory Agency - TVA/TVA 

Associated Nuclear Power Plants - Yellow Creek 

Relevance to Nuclear Power Plants - Normal cooling water 

Type - Gravity/Earth 

Year Completed - 1938 

Height- 91' 

Capacity- 1,105,000 acre-feet 

River Impounded - Tennessee 

Principal Function - Hydroelectric COE Inundation Hazard - High COE Inventory # - TN7101 

D-6 
Principal Des1gn Features of 

Off-Site Dams 

Dam Name - Rancho Seco Dam 

Owner/Regulatory Agency - Sacramento Municipal Utility District/FERC 

Associated Nuclear Power Plant - Rancho Seco 

Relevance to Nuclear Power Plants - Emergency cooling water 

Type - Earthfill 

Year Completed - 1972 

Height - so• 

Capacity - 2,850 acre-feet 

River Impounded - Hadselville Creek 

Principal Function - Hydroelectric COE Inundation Hazard - Low 

COE Inventory # - CA825 

Dam Name - Sherman Dam 

Owner/Regulatory Agency - New England Power Co/FERC 

Associated Nuclear Power Plants - Yankee Rowe 

Relevance to Nuclear Power Plants - Normal and emergency cooling water 

Type - Gravity/Earth 

Year Completed - 1927 

Height - 110 1 

Capacity - 5,540 acre-feet 

River Impounded - Deerfield 

Principal Function - Hydroelectric COE Inundation Hazard - Low 

COE Inventory # - MA43 

Dam Name - Vernon Dam 

Owner/Regulatory Agency - Connecticut River Power Co./FERC 

Associated Nuclear Power Plant-"- Vermont Yankee 

Relevance to Nuclear Power Plants - Normal cooling water 

Type - Gravity/Other Year Completed - 1937 

Height - 60 1 

Capacity - 222,000 acre-feet 

River Impounded - Connecticut 

Principal Function - Hydroelectric COE Inundation Hazard - High COE Inventory # - NH97 

D-7 
Pr1ncipal Design Features of 

Off-Site Dams 

Dam Name - Watts Bar Dam 

Owner/Regulatory Agency - TVA/TVA 

Associated Nuclear Power Plants - Watts Bar 

Relevance to Nuclear Power Plants - Upstream flood potential 

Type - Gravity/Earth Year Completed - 1942 

Height - 105' 

Capacity- 1,175,000 acre-feet 

River Impounded - Tennessee 

Principal Function - Hydroelectric COE Inundation Hazard - High COE Inventory # - TN12102 

Dam Name - Wheeler Dam 

Owner/Regulatory Agency - TVA/TVA 

Associated Nuclear Power Plants - Browns Ferry Relevance to Nuclear Power Plants - Normal cooling water 

Type _cconcrete gravity 

Year Completed - 1936 

Height - 60' 

Capacity- 1,071,000 acre-feet 

River Impounded - Tennessee 

Principal Function - Hydroelectric COE Inundation Hazard - High COE Inventory # - AL1411 

D-8 
Appendix E 

Uranium Mills Located 

in Agreement States 

E-1 
State 

Colorado 

New Mexico 

Texas 

Washington 

Uranium Mills Located in Agreement States 

Contact Uranium Mill Owner/Mill Name 

Mr. Albert J. Hagle, Director 1. 

Radiation & Hazardous Waste 

Control Division 

Cotter Corporation/ Canyon City Mill 

Office of Health Protection 2. Homestake l•1ining Co./ 

Dept. of Public Health Pitch Mill 

4210 East 11th Ave. 

Denver, Colorado 80220 3. Union Carbide Corp./ (303 320-8333 ext. 6246 Uravan Mi 11 

Mr. Alfonso Topp, Chief 1. Anaconda Co./ 

Radiation Protection Bureau Bluewater Mill 

Environmental Improvement Div. 

P.O. Box 968 2. Homestyle f1ining Co./ 

Santa Fe, New Mexico 87504 Grants Mill 

(505) 827-5271 ext. 279 

Mr. David K. Lacker, Chief 

Bureau of Radiation Control 

Texas Dept. of Health 

1100 West 49th Street 

Austin, Texas 78756 

(512) 835-7000 

3. Kerr-McGee Nuclear Corp./ Ambrosia Lake Mill 

4. Sohio-Reserve Co./ 

L-Bar Mi 11 

5. United Nuclear Corp./ 

Church Rock Mill 

1. Chevron Resources Co./ 

Panna Maria Mill 

2. Continental Oil, Pioneer 

Nuclear/Conquista Mill 

Mrs. Nancy Kirner, Supervisor 1. Dawn Mining Co./ 

Radioactive Materials Ford Mill 

Dept. of Social & Health 

Services 2. Western Nuclear Inc./ 

Mail Stop LD-11 Sherwood Mill 

Olympia, Washington 98504 

(206) 753-3459 

E-2 
NRC FORM 335 U.S. NUCLEAR REGULATORY COMMISSION 

1. REPORT NUMBER (AuignlldbyOOCJ 

111·811 

BIBLIOGRAPHIC DATA SHEET NUREG-0965 

4. TITLE AND SUBTITLE (A del Volume No., if approprisr.J 2. (LeBVII bllll!k} 

NRC Inventory of Dams 3. RECIPIENT'S ACCESSION NO. 

7. AUTHORISI 5. DATE REPORT COMPLETED 

George E. Lear, NRC Dam Safety Officer MONTH I YEAR 

Owen 0. Thompson, NRC Deput_v Dam Safety Officer Nov. 1982 

9. PERFORMING ORGANIZATION NAME AND MAILING ADDRESS (Include Zip Code} DATE REPORT ISSUED 

U.S. Nuclear Regulatory Commission MONTH I YEAR 

Dam Safety Officer Jan. 1983 

Mail Stop P-214 6. (Leave blank} 

Washington, D.C. 20555 

8. (Leave blank J 

12. SPONSORING ORGANIZATION NAME AND MAILING ADDRESS (Include Zip Code) 

U.S. Nuclear Regulatory Commission 10. PROJECT/TASK/WORK UNIT NO. 

Dam Safety Officer 11. FIN NO. Mail Stop P-214 

Washington, D.C. 20555 

13. TYPE OF REPORT I PERIOD COVERED (lnclustve dates) 

Technical Report throuah Auaust 1982 

15. SUPPLEMENTARY NOTES 14. (Leave blank) 

16. ABSTRACT 1200 words or less} 

The NRC Inventory of Dams has been prepared as required by the charter of the NRC Dam 

Safety Officer. The inventory lists 51 dams associated with nuclear power plant sites 

and 14 uranium mill tailings dams (licensed by NRC) in the U.S. as of February 1, 1982. 

Of the 85 listed nuclear power plants (148 units), 26 plants obtain cooling water from 

impoundments formed by dams. The 51 dams associated with the plants are: (a) located 

on a plant site (29 dams at 15 plant sites), (b) located off-site but provide plant 

cooling water (18 dams at 11 ad~itional plant sites), (c) located upstream from a plant 

(4 dams) -- they have been identified as dams whose failure, and ensuing plant flooding, could result in a radiological risk to the public health and safety. The dams that might be considered NRC's responsibility in terms of the Federal dam safety program are 

identified; this group of dams ~0 on nuclear power plant sites and 14 uranium mill 

tailings dams) was obtained by eliminating dams that do not pose a flooding hazard te .g. submerged dams) and dams that are regulated by another Federal agency. The report includes the principal design features of all dams and related useful information. 

17. KEY WORDS AND DOCUMENT ANALYSIS 17a. DESCRIPTORS 

Dam Safety Nuclear Power Plant Dams 

Tailings Dams 

Waste t4anagement 

17b. IDENTIFIERS/OPEN-ENDED TERMS 

18. AVAILABILITY STATEMENT 19. SECURITY CLASS (Th•s report! 21. NO. OF PAGES 

Unlimited Unclassified 

20. SECURITY CLASS (Thts page! 22. PRICE 

Uncl a"d -F; orf s 

NRC FOR, 335 111-811 


UNITED STATES 

NUCLEAR REGULATORY COMMISSION 

WASHINGTON, D.C. 20555 

OFFICIAL BUSINESS 

PENAL TV FOR PRIVATE USE, $300 

FOURTH CLASS MAIL 

POSTAGE & FEES PAID 

USNRC 

WASH. D. C 

PERMIT No ..Y.:§l