ML20198N069

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Forwards Results of Dam Safety Insp Re Category 1 Standby Nuclear Svc Water Pond Dam
ML20198N069
Person / Time
Site: Catawba  
Issue date: 01/13/1998
From: Tam P
NRC (Affiliation Not Assigned)
To: Gordon Peterson
DUKE POWER CO.
References
TAC-M99239, NUDOCS 9801200243
Download: ML20198N069 (4)
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Text

{{#Wiki_filter:. _ _ _ _ s -t January 13, 1998 Mr. G:ry R. P;t::rson Site Vice President Catawba Nuclear Station Duke Energy Corporation 4800 Concord Road York, E, .n Carolina 29745-9635

SUBJECT:

CATAWBA NUCLEAR STATION - RESULTS OF DAM SAFETY INSPECTION RELATED TO THE CATEGORY I STANDBY NUCLEAR SERVICE WATER POND DAM (TAC NOS. M99239 AND M99240)

Dear Mr. Pe;erson:

On February 27,1997, an inspection was conducted at the Catawba Nuclear Station of the Category l Standby Nuclear Service Water Pond Dam. The inspection was performed by personnel from the NRC and Federal Energy Regulatory Commission (FERC). By letter dated July 17,1997, you provided updated information regarding a house downstream of the dam. Enclosed please find the final report prepared by FERC and endorsed by the NRC. The conclusion of the inspection was that there were no conditions observed that would ' indicate any immediate concerns regarding the integrity of the dam and associated control facilities. Included in the report (see page 13)is a list of observations and recommendations that we discussed with your staff on February 26,1997, to ensure the continued safety of the dam consistent with the Federal Guidelines for Dam Safety (1979) and the Dam Safety Program Act defined in the Water Resources Act of 1996. These five items could, if left unattended, result in confusion and/or lead to safety problems. Please provide a written r sponse to these five items within 180 days of receipt of this letter. We appreciate the support provided by your staff before and during the inspection. If you have any questions regarding the report, please contact me at (301) 415-1451. Sincerel'/, IkerbaM,Niorhroject Manager - Project Directorate 11-2 Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation Dock:t Nos. 50-413 and 50414

Enclosure:

FERC Inspection Report g~8 g 4 LhC *L gA ' y y 7q" cc w/ encl: See next page Distribution with enclosure eDoolsetElo-PUBLIC PDil-2 Reading i (S{ { f Distribution w/o enclosure B. Boger J. Johnson, Ril D. Rom, T-7 J98 ACRS B. Boger C. Ogle, R-il DOCUMENT NAME: G:\\ CATAWBA \\ CAT 99239.LTR To receive a copy of this documer.t, indicate in the box: "C" = Copy pout attachment / enclosure "E" = Copy with cttachment/ enclosure "N" = No copy /f OFFICE DRPE\\PDil 2\\PM PDil-2\\LA / NMSS PD@ l NAME-PTam:en (Y'M LBerry Q) DRom DT HBirkfvf DATE-01/Q/95 - 01/f/98 01/11/98 01/1098 't(,"" M{ 9001200243 980113 e PDR ADOCK 05000413 C-H* I C PDR a

(_ --..-_,.--n-- . -. ~ -. -. l' I: I f'(( . UNITED' STATES - . NUCLEAR REGULATORY COMMISSION a y f WASHINGTON, D. C. 20686 January 13, 1998

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Mr. Gary R. Peterson l ~ L Site Vice President Catawba Nuclear Station - Duke Energy Corporation 4800 Concord Road e York, South Carolina 29745-9635'

SUBJECT:

. CATAWBA NUCLEAR STATION - RESULTS OF DAM SAFETY INSPECTION REl.ATED TO THE CATEGORY l STANDBY NUCLEAR SERVICE WATER POND - .] DAM (TAC NOS, M99239 AND M99240) l 1 i ear Mr. Peterson-D . On February 17,1997, an inspaction was conducted at the Catawba Nuclear Station of the Category I Standby Nucisar Service Water Pond Dam. The inspection was performed by personnel from the NRC and Federal Energy Rege'atory Commission (FERC). By letter dated July 17,1997, you provided updated information regarding a house downstream of the dam. - Enclosed please find the final report prepared by FERC and endorsed by the NRC. The cenclusicn of the inspection was that there were no. conditions observed that would ] indicate any immediate concems regarding the integrity of the dam and associated control facilities, included in the report (see page 13) is a list of observations and recommendations that we discussed with your staff on February 26,1997, to ensure the continued safety of the dam consistent with the Federal Guidelines for Dam Safety (1979) and the Dam Safety Program Act defined in the Water Resources Act of 1996. These five items could, if left unattended, result in confusion and/or lead to safety problems. Please provide a written . response to these five items within 180 days of receipt of this letter. We appreciate the support provided by your staff before and during the inspection. If you have . any questions regarding the report, please contact me at (301) 415-1451. Sincerely, h Petsr. Tam, Senior Project Manager Project Directorate ll-2 Division of Reactor Projects - 1/Il. Office of Nuclear Reactor Regulation - 4

  • Docket Nos150-413'and 50-414 6

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Enclosure:

= Inspection Report by FERC.
~

f cc w/ encl:LSee next page

C J Catawba Nuclear Station J cc:- Mr. M. S. KNian - North Carolina ' Electric Membership Regulatory Compliance Manager Corporation Duke Energy Corporation P. O. Box 27306 4800 Concord Road Paleigh, North Carolina 27611 York, South Carolina 29745 Senior Resident inspector Mr. Paul R. Newton U.S. Nuclear Regulatory Commission . Legal Department (PB055) 4830 Concord Road Duke Energy Corporation York, South Carolina 29745 422 South Church Street Charlotte, North Carolina 28242 Regions! Administrator, Region ll U. S. Nuclear Reg'.alatory Commission J. Michael McGarry, Ill, Esquire Atienta Federal Center Winston and Strewn 61 Forsyth Street, S.W., Suite 23T85 1400 L Street, NW Atlanta, Georgia 30303 Washington, DC 20005 Max Batavia, Chief North Carolina Municipal Power - Bureau of Radiological Health Agency Number 1 - South Carolina Department of 1427 Meadowwood Boulevard Heath and Environmental Control P. O. Box 29513 2600 Bull Street Raleigh, North Carolina 27626 Columbia, South Carolina 29201 Mr. Peter R. Harden, IV L. A. Keller - Account Sales Manager Manager-Nuclear Regulatory Westinghouse Electric Corporation Licensing Power Systems Field Sales Duke Energy Corporation P. O. Box 7288 526 South Church Street Charlotte, North Carolina 28241 Charlotte, Norti Carolina 28242-0001 ' County Manager of York County Saluda River Electric York County Courthouse P. O. Box 929 York, South Carolina 29745 Laurens, South Carolina 29360 Piedmont Mun!cipal Power Agency Ms. Karen E. Long 121 Village Drive Assistant Attorney General Greer, South Carolina 29651 North Carolina Department of Justice P. O. Box 629 Raleigh, North Carolina 27602 Elaine Wathen, Lead REP Planner ' Division of Emergency Management 116 West Jones Street Raleigh, North Carolina 27603-1535 -.- -u--- v-

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Catawba Nuclear Station cc: Mr. T. Richard Puryear-. Owners Group (NCEMC) - Duke Energy Corporation 4800 Concord Road York, South Carolina 29745 Richard M. Fry, Director Division of Radiation Protection North Caroline Department of Environment, Health, and Natural Resources - 3825 Barrett Drive Raleigh, North Carolina 27609-7721 ) i d I.. 4 ,.,w y s. -.. +..- ~w .o

a e FEDERAL ENERGY REGULATORY COMMISSION ATLANTA REGIONAL OFFICE Perkridge 85 North Building 3125 Presidential Parkway Suite 300 Atlanta, Georgia 30340 (770) 452-2360 AUG 211997 Standby Nuclear Service Water Pond Dam Catawba Nuclear Station Mr. Joseph J. Holonich, Chief Uranium Recovery Branch Division of Waste Management Office of Nuclear Material Safety and Safeguards U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001

Dear Mr. Holonich:

As requested in your August 4, 1997, letter we are forwarding three copies of the final version of the operation inspection report for the Standby Nuclear Service Water Pond Dam at the Catawba Nuclear Station. We have modified the draft report in accordance with your request to reflect the fact that the dwelling originally located at the left downstream toe of the dam was removed subsequent to the inspection conducted in February 1997. As a result of this action, the dam is now considered to have a " Low" hazard potential. The five recommendations included in the draft report for improving maintenance and operation of the dam are still considered appropriate. We appreciate the opportunity to assist you with your dam safety program. If there are questions regarding this report, please contact Mr. Jason J. Chen of this office at 770/452-2363, extension 25. Sincerely, r Jerrold W. Gotzmer, P.E. Acting Director Enclosure 9fDi15v 69/ ,40)

e OPERATION INSPECTION REPORT for THE NUCLEAR REGULATORY COMMISSION Inspection by FEDERAL ENERGY REGULATORY COMMISSION Atlanta Regional Office Date of inspection February 26. 1997 Dam (name) Standby Nuclear Service Water Pond (SNSWP) Location Catawba Nuclear Station York South Carolina (County) (State) NRC Licensed Project Catawba Nuclear Station . Licensee Duke Power Company Features of the Dam and Impoundment Inspected and Embankment. Outlet Structure. Instrument Pier. and immediate vicinities Inspected by Jason J. Chen Weather Cloudy and warm 55 F Accompanied by Messrs. P. Tam and D. Rom (NRC-hoi! W. Shoemaker and C. Ey of Duke Power Company Summary Based on observations during the field inspection; review of design documents, maintenance

records, and instrumentation monitoring data; and discussions with NRC representatives and Duke Power Company (Duke) employees, structural features of the SNSWP dam and appurtenant structures appear to be in satisfactory condition and adequately maintained.

No conditions were observed which should impair the immediate safety and permanence of the development workc. Inspection and maintenance related recommen-dations were provided as a result of this inspection. A list of these recommendations is included in the text of the report. At the time of the inspection, SNSWP level was at elevation 574.2 feet msl and Lake Wylie level at elevation 567.7 feet msl. An engineering data sheet, a project location map, and plan and sectional views of the project structures follow. i4UG211997 Submitted JA, e j/ Jasoned. Chen, P. E. 0

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Catswba Nuclear Station Appendix 2. Chapter 2 Tables and Hgures Table 2-66. Standby Nuclear Service Water Pond Pertinent pond and dam featuns an tabulated in this table. Pond Drainage area at the dam 410 acms Water surface elevation, nonnal full pond 571.0 ms! Maximum storm surchuget 10.3 ft Surface area, water surface at elevation 571.0 46 acres Volume, water surface at elevation $71.0 560 acre ft Usable volume, between elevation 542.75 (SSSW intake) 560 acre ft and elevation 571.0 Estimated average annual surface evaporation 160 acn ft Estimated average annualinflow 464 acre ft PMP inflow peak 3650cfs Evaporation losses avera;;e 42 inches per year Evaporation losses - maximum 50 inches per year Maximum drawdown elevation LOCA conditions 567.0 ms! Volume at maximum drawdown elevation 390 acre ft Dam Compacted Earth Fill - Group i Designed for normal and seismic loadings Crest elevation 595.0 ms! Maximum height 75 ft Length of cast 1710 ft Width of crest 35 ft Freeboard, maximum flood level on Lake Wybe side 2.8 ft Maximum hunicane waves with Lake Wyhc at full pond 4.5 ft elevation Slope protection - Stone Riprap - 8 Discharge at maximum storm surcharge 380 efs Q1 OCT 1991)

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e i 1 l A. ' safety of the Project. All accessible areas of the SNSWP structures were inspected on February 26, 1997. No conditions were ) identified that represent an immediate danger to the safety and permanence of the projects works. 1. Dam. Dikes, and Annurtenant structures The SNSWP was j constructed by closing a natural cove of Lake. Wylie with an earth dam. The SNSWP provides emergency cooling water for the ] nuclear units at the Cataw'ba Nuclear station. The SNSWP dam is a 1,710-f oot-lor.g earth fill structure with a maximum height of 75 feet. The differential head between the upstream SNSWP and the downstream Lake Wylie is only 6 to 7 feet. No utility lines or tunnels are reportedly located within or beneath the dam. A concrete outlet structure and an instrument pier are located at the right abutment. a. SNSWP Dam. The dam is an earth fill embankment structure and was found to te in a stable condition. No signs of significant distress were observed such as sliding, sloughing, settling, or other movements on either the downstream or upstream faces.. Photograph 1 presents an overall upstream view, looking frou the left end. The upstream slope, as well as the top and the ' downstream slo,r., are protected from erosion by dumped riprap stones. The photograph shows riprap stones with different colors, an indication the materials come from different sources. Photograph 2 shows the crest of the dam. Roadbed-size crushed stone material was placed over the riprap stones for traffic purposes. No cracks or settlement were observed on the crest. Photograph 3 presents an upstream view of the left portion of

.o -s-the dam. Photograph-4 shows a road from the left end of:the crest ~ turning-to - the downstream toc for : access to a boat ramp

(Photograph 5).

Photograph 6. presents a view of_the downstream slope, looking toward the right_ abutment. No depressions were observed-on the surface of the riprapped slope. Photograph 7 presents a' view-of the Icft portion of the downstrean slope. Seepage was observed from the middle height of the drain ditch at the downstream right abutment-(Photograph-8). The exit point of the seepage was at a-level _ higher than the upstream pond level. Thus, the source of the seepage appears to be runoff from the hillside of the right ~ abutment, and has no. relation with the SNSWP. No-other seepage areas were observed at the dam. Photograph 9 shows the downstream view--of Lake Wylie. The old cofferdam used in the construction of ~' the SNSW? dam can be seen in this photograph. c. outlet structure and Instrument Pier. The outlet i structure is located on the shoreline several hundred feet to the right from the dam (Photograph 10). This concrete structure +- protects the outlet pipe which is used to release-water when the pond' level is above the. full pond design level (Photograph 11).

The top of the-structure is covered with a heavily-reinforced 2-foot thick concrete. slab for missile protection.

No signs of significant_- deterioration such as cracking-or spalling were

observed on any parts of
the exterior faces.

/The_ instrument pier is for_ access to the temperature probe. The_ pier appeared:to be in a satisfactory condition. No signs of rusting..or instabilit'y;were noted (Photograph 12). ..a.-.- ~..

. d. ENSWP and Wylie Reservoir. The SNSWP shoreline was inspected from the dam and upstream abutments. From visual observations, no significant erosion of the shoreline or accumulation of trash or debris were noted (Photographs 5 and 12). Duke's representative reported that a minor washout was observed on ~the shoreline southwest of the dam during the annual inspection in 1996. The area was repaired with riprap stones. The shorelino of the Wylie reservoir immediately downstream of the SNSWP dam was observed from the dam and no conditions of instability were noted (Photograph 9). 2. Instrumentation. The SNSWP dam is monitored by 8 piezometers and 12 surface monuments (Attachment 1). Presently piezometers are read quarterly and surface monuments are surveyed annually. Photograph 13 shows the gravel walkway access to piezometer 3 located in the middle height of the downstream slope. Readings for the piezometers in the embankment are within historical levels (Attachment 2). A review of the piezometer readings indicate that piezometer-7 had some anomalous measurements. A close observation of piezometer 7 reveals that a depression ring is around the pipe of this instrument and rain water might cause these readings (Photograph 14). Modification of the surrounding area to prevent water ponding and cleaning and testing of this instrument is necessary to ensure its proper functioning. Surface monument surveys for vertical movement is referenced from the benchmark located at the right abutment (Photographs 15- -and 16). The-benchmark is periodically checked against a permanent benchmark installed in foundation rock located in the Reactor

, building. Survey data indicate that surface monumento were surveyed monthly from the dam completion date of March 1978 to March 1987, then no measurements were taken until November 1993, when the survey was resumed and has been taken annually since then. Survey data indicated a zero vertical movement (settlement) to the north and approximately 0.1 inch settlement to the south between 1987 and 1993. Therefore, it appears there was no adverse effect on the overall monitoring program caused by the gap of six years. Survey data indicate that the SNSWP dam experienced settlements ranging from approximately 0.1 inch to the north (left) portion to 1 inch-to the south (right) portion (Attachment 3). The deep section is in the south portion and the measured 1 inch settlement since 1978 appears to be reasonable. The annual survey should be maintained. However, it is recommended that an offset survey to monitor horizontal movement should be conducted. 3. Downstream Hazard Potential. There was a dwelling 'a located at the lef t downstream toe area at the time of this inspection (Photograph 7). It appeared this structure may be affected by a failure of the SNSWP dam. Other structures shown on Photograph 9 probably would not be affected since their foundations are located above the water level of Wylie lake. In accordance with FERC criteria, the SNSWP dam would be classified as having a "Significant" hazard potential.

However, the dwelling was subsequently removed by the licensee between April and July 1997.

Therefore, this dam is classified as a " Low" hazard potential structure.

4. Consultant's Safety Inspection Reports.

There are no inspection reports prepared by a consultant.

+ c- , 7 5. Du? n's Inspection Procram. Duke's periodic inspection and maintenance program is summarized as follows: Inspection Frequency Performed by Last Inspection Visual Quarterly CNSIC 12/2/96 Piezometers Quarterly CNSIC 12/2/96 Surface Monuments Annually survey crew 11/13/96 Engineering Annually CNSE 11/11 & 12/96 CNSIC - Catawba Nuclear Station Instrument Crew CNSE - Catawba Nuclear Station Engineering B. Oggration and Maintenance. The project appeared to be adequately maintained and no adverse safety related problems were identified by this inspection or by recent inspections conducted by Duke's staff. Also, no significant deficiencies in maintenance of the project were noted during this inspection. 1. Dam and Appurtenant structures. Riprap cover on the crest and upstream and downstream faces of the embankment appears to be adequately controlling erosion. The riprap appeared to be free of vegetative growth. During this inspection, no conditions were noted which require emergency actions. 2. Spillway Gates and standby Power. Not applicable as there are no gated spillways associated with the SNSWP. The outlet structure controls the pond level by gravity flow through a steel pipe. 3. Power Plant. Not applicable as there are no hydro generation units associated with the SNSWP. 4. Reservoir. Based on observations during this inspection, the reservoir appeared to be clean and free of debris. No excessive erosion of the shoreline was noted by visual inspection from the dam and its abutments. During Duke's annual

. inspection in 1996, a washout area was observed at the south side of the pond and riprap was placed to correct this slope instability. This was a small area and had no significant effect on the water volume of the pond required for the standby cooling service for the reactor units. 5. RasAIda. Design and construction records including as-built drawings and a final safety analyais report are maintained 2 by Duke at the site and at the corporate office in Charlotte, North Carolina. These documents are also maintained at the NRC-HQ offices in Washington, D. C. 6. Emergenc'_t Action Plan (k1D). Any emergency actions associate with the SNSWP are part of the overall emergency evacuation plan for the Catawba Nuclear stetion. No separate EAP exists for the SNSWP at this time. There is a dwelling located at the downstream left toe area which could be affected by a failure of the SNSWP dam i' the ficor level ir lower than the pond level (Photograph 7). This should be verified. According to FERC criteria, an EAP is required for a project with a "Significant" hazard potential classification. C. Enviro.ngental. Public Use and safety. No items of questionable public safety were observed or reported during this t reporting period. The dam and pond are closed to the public. The area is fenced and access gates are locked. Existing public safety features appear adequate and are properly maintained. No additional actions to protect life and property were required as a result of the inspection. D. Matters of commission Interest. 1. Additions. Betterments. Leassa. Retirements. or Needed Extensigna. None.

. 2. Requiring commission Action. None. 3. Project compliance. No applicable. E. Findincts and Followup Action. The inspecticn team did not observe any conditions that should adversely affect the iwnediate safety and permanence of the project. A meeting was held at the site on the afternoon of February 26, 1997, and the following observations and recommendations were discussed with NRC and Duke representatives: F 1. Increane the inspection frequency for the dam from quarterly to mont'hly. 2. Rework the area surrounding piezometer P-7 to prevent ponding rain water and clean and test this instrument to ensure its proper functioning. 3. Conduct offset surveys of the surface monuments to i moritoring horizontal movement, 4. A d d a s u r f a c e m o n u m e n t o n t o p o f t h e o u t l e t' s t r u c t u r e t o monitor its vertical and horizontal movements. 5. Conduct periodic surveys of the reference benchmark in the plant from a USGS benchmark. p

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. b T Photograph 1 02/16/97 Upstream view of the SNSWP dam, looking from the crest on the left. o s ( Photograph 2 02/26/97 A view of the dam crest, looking toward the left (north). e

a, Photograph 3 02/26/97 Upstream slope of the left portion. \\ Photograph 4 02/26/97 Left abutment of the dam; the road along the downstream toe accesses a boat ramp.

l c. ? s' ~ ,,'j.=;.T -f 4.4...,, -c.--N'"' ~,* 7, ', ',.. ~ ', ' M 7.; - 4 ,f:,,hh$,N,/), hb5 - Photograph 5 02/26/97 Boat ramp located just to the left of the dam. A Photograph 6 02/26/97 Riprapped downstream slope, looking from the left toe.

j ! l I j i 1 1 i l I ,1 l l Photograph 7 02/26/97 l The left portion of the downstream slope. Note d the dwelling located at the other side of the toe road at the time of this inspection. This dwelling was removed between April and July 1997. i Photograph 8 02/26/97 The drainage ditch at the downstream right abut-ment. Note seepage exits at the middle height of the ditch. r \\

. 1 ,4 0 k. ,.2: 20 v4i ll1 s Photograph 9 02/26/97 A view of the downstream Lake Wylie, looking from the top of the SNSWP dam. Note the breached cofferdam used for the construction of the dam (arrow). i. Y -s. .s c h w+

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Catawba Nedear Station Appendis 2. Chapter 2 Tables and Dgures l y,, rl d 7, J. .1 / i I T T ? l f f-I j r e J. W '. Ej I{g i I I A l Ja k k k_ s 1 1 ) !.J. ,g a. g ) o i E4 l-l) '+ g-3 1 4 ]__ ag a. 3.5 s gj ! li 7 i i I2-3 T l 11 1 I3 11 ~~ ~ i =lf! l I i 1 5 5 1 i Figure 2 201 (Part 2 of 5). SNSW Pond Dam Piaometric Readings

Catawba Nuclear Staelon Appendiz 2. Chapter 2 Tables and ngwes I I J. 2 i a g+ l 9A .L 1 L g ) aJ / l _- 3 d 2 s ( J. 1 l L 1 ] i g E I A l j 1 g. j 3 s, 1 g s I -{ i c j - r a I 1' ] ! 9 a ,'; g .4 ,,, f I I I I I Figure 2 201 (Part 3 of 5). SNSW Pond Dam Piczometric Readings

Catawba Nuclear Station Appendix 2. Chapter 2 Tandes and Hgures ( b L i I , r i i. lj 7

L 1.

~ I ~ k~ t-i r 2 ] a 2 d - i 1 I. 1 l L t u 3 h } L f I i 'lI T I ( 1 _-1 la, _5 _1 1( s. 1 o 3 I \\ -l 1 i i \\i :] t h8 s, 1 i N,1 3 2g: i i i s

i..;

a = t g ;. gIi s a a i s i e a as ii a. Rgure 2 201 (Part 4 of 5). SNSW Pond Dam Picronectric Readings e i

Cr.sewbo Nedear moon APPendia 2. Chapter 2 Tables and figures ( ]h 1$ J j i .1 f a .a !.4 }' .i ( 1 s. J i l J'b J ac. I2 .s a ( .. I. I .11

> I Jjg I 1 lj*]'

3 I t Ia , q> 'l I 4 >\\ a

r y.

ly -e J. J 1 Er l\\ lt f = g -i Hgure 2 201 (Part 5 of 5). $NSW Pond Dam Picrometric Readings

Readir.g (FT) T T M 8 8 m 5 m o u o e 6/29/84 7 7 ll .g 8/24/84 i i ll c i 10/17/84 l l l ); .l i 12/31/84 i .i , i. i. i i 1 2/14/85 l l l l l l 4/9/85 l 6/7/85 l l l l l 4s 'l l .W c t,. 7/29/85 i .i ing l-l l l 11 l 9/23/85 l l l l .i lh. l g g i 11/25/85 l l lhl]l > [ 1/17/86 l l l l l 0 l l l l 'y y l k ( j g l l l l l,,n, l = i e l,' 5/18/86 W.i l l l l d l l Ei' 11/19/86 l l l l l I i II $/28/87 i i It. i I. e 12/2/87 l l l l -l p >' l i 4/25/88 i 10/10/88 l l l l l .i .i 3/28/89 u i. i. l i 8/31/89 l l l l tl l 2/15/90 v s m I i T,8 m,,a u,, i 8 n

Readi.1g (FT) 2 2 8 o w I N cm o w a 7/27/90 11/19/90 3/6/91 l l l >l l .i i 6/17/91 i 10/3/91 l l e l l 12/31/91 3/24/92 l l l g l l 6/8/92 .i i 9/2/92 l l l l l l 1 I 12/2/92 i i l .. l l l l T. 3/3/93 l l l l l i 5/13/93 g j g n essa j j l e i $ 11/17/93 l 3 l l l l l p<( l l 3 3/1/94 l l N. m 5/23/94 3 a I i a. s n 8/19/94 l l l l l 3 2/2/95 i 4/24/95 l l l l l 7/20/95 .i Iq e 9/27/95 l l l l l i i 1/3/96 3/26/96 l l .i l l i 6/17/96 i < B e 9/25/96 l l i l l l 0 12/2/96 i >l ll < l> l3 3 3

Reading (FT) 2 8 d w w m 5 a e o 7/27/90 l l l l l 11/19/90 i .N'. 3/6/91 l l l l l l l ll l i i 6/17/91 iii l i I 10/3/91 l l l l l l l ll l 12/31/91 ,o t. 3/24/92 l l l l l l i s '. l 6/8/92 f l l. i i 9/2/92 l l l l l l d' i l l i 12/2/92 i i 3/3/33 l l l l l l l l l l 1 i 3-i n 5/13/93 i P. T O m w O 1 3 11/17/93 3 ll l l m 3/1/94 l l l l l l o 5/23/94 .i 2 l l l l 8/19/04 l l l 2/2/95 4/24/95 l l l l l l-d.e l l 7/20/95 i o. i. 9/27/95 l l l l l l l 1/3/96 i .i 3/26/96 l l l l l l l l 6/17/96 W '. t i 9/25/96 l l l l l l glh l .i I .d 12/2/96 ll o 3 m, ~

Reading (FT) m m w w w w w w w w Q N N N N CD N, ci co 8 a w o u os a w 7/27/90 '.1 T, 11/19/90 .i 3/6/91 l l l i,gi l l l l l 6/17/91 10/3/91 l l l l 9: l l l 12/31/91 .i 3/24/92 l l l si l l l l l .i 6/8/92 i 9/2/92 l l l i l l l l l 12/2/92 li. i T (, 3 i g' l l l l l [ 3/3/93 l l l l o 5/13/93 r. g 8/9/93 l l l l l l U a t a k $ 11/17/93 l l l l l 3 i lH i 3/1/94 l l . Li,l l l l l l 2 m 5/23/94 . g o. .i .i 8/19/94 l l l l l l l l l l 2/2/95 i 4/24/95 l l l l p l l .l l l l 7/20/95 i o d,i . l l l l l 9/27/95 l l l i 1/3/96 .i 3/26/96 l l l .l l l l l l l 6/17/96 i aio .i i< l l l l l l 9/25/96 l l l j t i t r r i ll n ei o

CATAWBA SNSW DAM SETTLEMENT READINGS 3/3/78 4/10/78 5/5/78 6/2/78 7/7/78 8/4/78 9/1/78 10/20/78 11/3/78 12/1/78 1/5/79 _SMs1 593.770 593.730 593.780 593.7_60 593.750 593.735 593.743 593.714 593.743 593.744 593.739 _SM#2 594.170 594.130 594.170 594.150 594.140 594.125 594.143 594.108 594.136 594.128 594.118 SM*3 594.730 594.690 594.730 594.700 594.710 594.675 594.693 594.656 594.678 594.687 594.676 SM*4 595.010 594.970 595.010 594.980 594.980 594.955 r,94.973 594.941 594.968 594.967 594.959 SM*5 594.640 594.600 594.650 594.610 594.600 594.585 594.603 594.556 594.596 594.597 594.59'! SMs6 594.690 594.660 594.700 594.670 594.650 594.635 594.653 594.624 594.644 594.656 594.644 _SM#7 594.400 594.370 594.390 594.370 594.345 594.375 594.351 594.362 594.370 594.363 SM#8 594.420 594.380 594.430 594.420 594.400 594.390 594.418 594.408 594.406 594.415 594.413 SM*9 594.080 594.060 594.100 594.090 594._070 594.055 594.095 594.085 594.075 594.077 594.066 SM#10 593.550 593.540 593.560 593.560 593.550 593.525 593.563 593.5B8 593.550 593.562 593.559 SMF11 L593.290 593.290 593.300 593.310 593.300 593.280 593.298 593.309 593.308 593.303 593.300 2 SMf12 592.920 592.930 592.920 592.920 592.930 l 592.895 592.910 592.928 592.926 592.937 592.913 SM*1 0.000 -0.040 0.010 -0.010 -0.020 -0.035 -0.027 -0.056 -0.027 -0.026 -0.031 _SM *2 0.000 -0.040 0.000 -0.020 -0.030 -0.045 -0.027 -0.062 -0.034 -0.042 -0.052 SM*3 0.000 -0.040 0.000 -0.030 -0.020 -0.055 -0.037 -0.074 -0.052 -0.043 -0.054 SM*4 0.000 -9.040 0.000 -0.030 -0.030 -0.055 -0.037 -0.069 -0.042 -0.043 -0.051 SM#5 0.000 -0.0a0 0.010 -0.030 -0.000 -0.055 -0.037 -0.084 -0.044 -0.043 -0.048 _SM*6 0.000 -0.030 0.010 -0.020 -0.040 -0.055 -0.037 -0.066 -0.046 -0.034 -0.046 _SM*7 0.000 -0.030 -0.010 -0.030 -0.055 -0.025 -0.049 -0.038 -0.030 -0.037 s SM#8 0.000 -0.040 0.010 0.000 -0.020 -0.030 -0.002 -0.012 -0.014 -0.005 -0.007 SM*9 0.000 -0.020 0.020 0.010 -0.010 -0.025 0.015 0.005 -0.005 -0.003 -0.014 g SM#10 0.000 -0.010 0.010 0.010 0.000 -0.025 0.013 0.018 0.000 0.012 0.009 SMF11 0.000 0.000 0.010 0.020 0.0;0 -0.010 0.008 0.018 0.018 0.013 0.010 M SMF12 0.000 0.010 0.000 0.000 0.010 -0.025 -0.010 0.008 0.006 0.017 -0.007 ty l Page 1

CATAWBA FMSW DAM SETTLEMENT READe0GS l 2/2/79 3/2/79 4/10/79 L I79 6/1/79 7/6/79 8/3/79 9/11/79 10/8/79 11/7/79 12/15/79 SM

  • 1 593.759 593.722 593.730 593.728 593.707 593.705 593.698 593.694 593.701 593.709 593.701

~ EiF2 534155 594.115 594.127 594.118 594.100 594.095 594.091 594.084 594.091 594.099 594.091 -~ S ~-~SM*3 594.703 594.666 594.669 594.667 594.655 594.645 594.641 594.644 594.641 594.649 594.639 SM#4 594.995 594.956 594.964 594.960 594.940 594.935 594.939 594.933 594.936 594.939 594.939 SM*5 594.618 594.590 594.601 594.595 594.575 594.569 594.576 594.570 594.578 594.586 594.579 SM*6 594.680 594.641 594.650 594.643 594.629 594.617 594.624 594.613 594.318 594.641 594.626 SM87 594.390 594.353 594.363 594.360 594.346 594.335 594.346 594.339 594.338 594.358 594.341 SM*8 594.435 594.411 594.410 594.414 594.393 594.382 594.382 594.369 594.380 594.391 594.391 SM*9 594.082 594.068 594.063 594.065 594.050 594.041 594.051 594.044 594.043 594.066 594.045' S*A#10 593.564 593.559 593.551 593.545 593.538 593.523 593.530 593.$38 593.543 593.561 593.537 SM#11 593.296 593.284 593.283 593.270 593.280 593.268 593.282 593.279 593.282 593.281 593.276 SM*12 593.910 592.900 592.898 592.897 552.899 592.899 592.903 592.901 592.901 592.896 592.896 i ( SM#1 -0.001 -0.048 -0.040 -0.042 -0.063 -0.065 -0.072 -0.076 -0.069 -0.061 -0.069 SM#2 -0.015 -0.055 -0.043 -0.052 -0.070 -0.075 -0.079 -0.086 -0.079 -0.071 -0.079 y13 -0.027 -0.064 -0.061 -0.063 -0.075 -0.085 -0.089 -0.086 -0.089 -0.081 -0.091 SM#4 -0.015 -0.054 -0.046 -0.050 -0.070 -0.075 -0.071 -0.077 -0.074 -0.071 -0.071 SMt5 -0.022 -0.050 -0.039 -0.045 -0.065 -0.071 -0.064 -0.070 -0.062 -0.054 -0.061 SM#6 -0.010 -0.049 -0.040 -O047 -0.061 -0.073 -0.066 -0.077 -0.072 -0.049 -0.064 SM#7 -0.010 -0.047 -0.037 -0.040 -0.054 -0.065 -0.054 -0.061 -0.062 -0.042 -0.059 SM*8 0.015 -0.009 -0.010 -0.006 -0.027 -0.038 -0.038 -0.051 -0.040 -0.029 -0.029 SM*9 0.002 -0.012 -0.017 -0.011 -0.030 -0.039 -0.029 -0.036 -0.037 -0.014 -0.035 SM#10 0.014 0.009 0.001 -0.005 -0.012 -0.027 -0.020 -0.012 -0.007 0.011 -0.013 SM*11 0.006 -0.006 -0.007 -0.020 -0.010 -0.022 -0.008 -0.011 -0.008 -0.009 -0.014 SM*12 0.990 -0.020 -0.022 -0.023 -o.021 -0.021 -0.017 -0.019 -0.019 -0.024 -0.024 Page 2

i CATAW8A SNSW DAM SETTLERENT READMGS b i ~ ~ i I 4 1 1/10/80 2/11/80 3/10/80-4/4/80 5/2/80 6/6/80 7/3/80 8/12/80 9/5/80 10/3/80 11/14/80 i f. 1 SM81 593.690 593.683 593.707 593.715 593.699 59s.711 593.709 593.717 593.723 593.709 593.724 i SM82 594.079 594.073 594.087 594.095 594.097 594.096 594.101 594.110 594.104 594.094 594.099 I l SMs3 594.637 594.623 594.645 594.645 594.643 594.656 594.653 594.658 594.666 594.649 594.659 [ SM84 594.933 594.913 594.937 594.943 594.941 594.95'i e 594.943 '594.962 594.963 594.950 594.951 l SM#5 594.566 594.548 594.567 594.575 594.576 594.588 594.586 594.591 594.592 594.582 594.587 SM86 594.614 594.601 594.621 594.628 594.621 594.634 594.633 594.639 594.644 594.630 594.639 [ SMs7 594.336 594.316 594.337 594.345 594.348 594.358 594.346 594.354 594.358 594.349 594.358 l SM*8 594.380 594.370 - 594.377 594.397 594.382 594.398 594.389 594.401 594.408 594.394 594.410 } SM89 594.044 594.028 594.042 594.045 594.058 594.067 594.051 594.051 594.061 594.055 594.058 l SM#10 593.536 593.537 593.542 593.535 593.525 593.536 593.536 593.542 533.545 593.549. 593.551 5 SM*11 593.276 593.273 593.'!71 593.270 593.273 593.277 593.276 593.283 593.287 593.290 593.282 [ SMs12 592.890 592.894 592.891 592.892 592.892 592.896 592.901 592.904 592.902 592.902 592.903 ? I i SM#1 -0.080 -0.087 -0.063 -0.055 -0.071 -0.059 -0.061 -0.053 -0.047 -0.0S1 -0.046 f [ SM#2 -0.091 -0.097 -0.083 -0.075 -0.073 -0.074 -0.069 -0.060 -0.066 -0.076 -0.071 SM*3 -0.093 -0.107 -0.085 -0.085 -0.087 -0.074 -0.077 -0.072 -0.064 -0.061 -0.071 i i SM*4 -0.077 -0.097 -0.073 -0.067 -0.069 -0.057 -0.067-0.048 -0.047 -0.060 -0.059 SM85 -0.074 -0.392 0.073 -0.065 -0.064 -0.052 -0.054 -0.049 -0.048 -0.058 ^ -0.053

l SM#6

-0.076 -0.089 -0.069 -0.0 32 -0.069 -0.056 -0.057 -0.051 -0.046 -0.060 -0.051 I i SM*7 -0.064 -0.084 -0.063 -0.055 -0 052 -0.042 -0.054 -0.046 -0.042 -0.051 -0.042 SM#8 -0.040 -0.050 -0.043 -0.023 -0.038 -0.022 -0.031 -0.019 -0.012 -0.026 -0.010 SMs9 -0.036 -0.052 -0.038 -0.035 -0.022 -0.013 -0.029 -0.029 -0.019 -0.025 -0.022 i l SMF10 -0.014 -0.013 -0.008 -0.015 -0.025 -0.014 -0.014 -0.008 -0.005 -0.001 G.001 SM#11 0.014 -0.017 -0.019 -0.020 -0.017 -0.013 -0.014 -0.007 -0.003 0.000 -0.00t. I SMs12 -0.030 -0.026 -0.029 -0.028 -0.028 -0.024 -0.019 -0.016 -0.018 -0.018 -0.017 T Page 3 l I

CATAWBA SNSW DAM SETTLEMENT READMGS 12/8/80 1/19/81 2/17/81 3/6/81 4/10/81 5/29/81 6/25/81 7/7/81 8/28/81 9/4/81 10/2/81 SM*1 593.700 593.706 593.698 593.718 593.700 593.711 593.702 593.709 593.711 593.696 SM#2 594.089 594.096 594.088 534.107 594.093 594.109 594.086 594.091 594.094 594.086 SM*3 594.638 594.647 594.639 594.655i 594.643 594.649 594.643 594.643 594.645 594.643 SM84 594.932 594.945 534.934 594.963 594.939 594.952 594.938 594.939 594.939 594.933 i SM*5 594.568 594.582 594.570 594.591 594.576 594.585 594.575 594.574 594.575 594.580 l SM*6 594.618 594.627 594.616 594.637 594.624 594.634 594.623 594.626 594.624 594.630 SM*7 594.330 594.346 594.335 594.350 599.342 594.349 594.339 594.339 594.343 594.341 SM#8 534.380 594.396 594.383 594.397 594.388 594.398 594.384 594.382 594.388 594.395 i SM#9 594.037 594.054 594.053 594.056 594.051 594.057 594.047 594.045 594.050 594.053 SM#10 593.532 593.531 593.533 593.550 593.535 593.538 593.5b5 594.536 593.535 593.547 SM*11 593.281 593.283 593.283 593.282 593.283 593.2b3 593.283 593.281 593.283 593.288 SM#12 592.903 592.906 592.903 5?2.903 592.903 592.904 592.899 592.898 592.895 592.906 i SM#1 -0.070 -0.064 -0.072 -0.052 -0.070 -0.059 -0.063 -0.061 -0.059 -0.074 l SM*2 -0.081 -0.074 -0.082 -0.063 -0.077 -0.061 -0.084 -0.079 -0.076 -0.084 i SM#3 -0.092 -0.083 -0.091 -0.075 -0.087 -0.081 -0.087 -0.087 -0.085 -0.087 SM#4 -0.078 -0.065 -0.076 -0.047 -0.071 -0.058 -0.072 -0.071 -0.071 -0.077 SM#5 -0.072 -0.058 -0.070 -0.049 -0.064 -0.055 -0.065 -0.066 -0.065 -0.060 SMf6 -0.072 -0.063 -0.074 -0.053 -0.066 -0.056 -0.067 -0.064 -0.066 -0.C60 SM*7 -0.070 -0.054 -0.065 -0.050 4.942 -0.051 -0.061 -0.061 -0.057 -0.059 SM*8 -0.040 -0.024 -0.037 -0.023 -0.032 -0.022 -0.036 -0.038 -0.032 -0.025 SMF9 -0.043 -0.026 -0.027 -0.024 -0.029 -0.023 -0.033 -0.035 -0.030 -0.027 SM*10 -0.018 -0.019 -0.017 0.000 -0.015 -0.012 -0.015 0.986 -0.015 -0.003 SM#11 -0.009 -0.007 -0.007 -0.008 -0.007 -0.007 -0.007 -0.009 -0.007 -0.002 EM#12 -0.017 -0.014 -0.017 -0.01 ' -0.017 -0.016 -0.021- -0.022 -0.025 -0.014 Page 4

CATAWBA SNSW DAM SETTLEMENT READMGS 11/13/81 12/10/81 1/4!82 2/7/82 3/5/32 4/2/82 5/10/82 6/ *./82 7/2/82 8/6/82 9/3/82 SM*1 593.703 593.704 593.708 593.698 593.703 593.715 593.694 593.701 593.694 593.690 SM#2 594.090 594.092 594.087 594.085 594.093 594.100 594.088 594.089 594.083 594.081 SM*3 594.649 594.652 o94.648 594.640 594.644 594.648 594.635 594.642 594.634 594.640 SMf4 594.940 594.950 594.941 594.938 594.942 594.942 594.933 594.937 594.928 594.926 SM*5 594.584 594.636 594.579 594.576 594.578 594.577 594.571 594.574 594.565 594.561 SM86 594.636 594.632 594.631 594.623 594.624 594.627 594.620 594.623 594.616 594.611 4 SM#7 594.350 594.344 59{ 339 594.336 594.339 594.342 594.339 594.341 594.335 594.329 SM*8 594.400 594.398 594.392 594.387 594.391 594.387 594.382 594.309 594.378 594.375 SM*9 594.059 594.049 594.051 594.043 594.049 594.056 594.046 594.045 594.044 594.041 SM*10 593.544 593.539 593.547 593.536 593.535 593.535 593.532 593.528 593.532 593.530 SM#11 593.286 593.280 593.282 593.283 593.282 593.283 593.279 593.201 593.281 593.278 SMs12 592.902 592.898 592.903 592.903 592.901 592.903 592.901 592.904 592.901 592.899 = SM#1 -0.067 -0.066 -0.062 -0.072 -0.067 -0.055 -0.076 -0.069 -0.076 -0.080 SM82 -0.080 -0.078 -0.083 -0.085 -0.077 -0.070 -0.082 -0.081 -0.087 -0089 SM*3 -0.081 -0.078 -0.082 -0.090 -0.086 -0.082 -0.095 -0.088 -0.096 -0.090 SM#4 -0.070 -0.060 -0.069 -0.072 -0.068 -0.068 -0.077 -0.073 -0.082 -0.084 SM#5 -0.056 -0.004 -0.061 -0.064 -0.062 -0.063 -0.069 -0.066 -0.075 -0.079 l SM#6 -0.054 -0.058 -0.059 -0.067 -0.066 -0.063 -0.070 -0.067 -0.074 -0.079 SM#7 -0.050 -0.056 -0.061 -0.064 ').061 -0.058 -0.061 -0.059 -0.065 -0.071 SM#8 -0.020 -0.022 -0.028 -0.033 -0.029 -0.033 -0.038 -0.111 -0.042 -0.045 SM*9 -0.021 -0.031 -0.029 -0.037 -0.031 -0.024 -0.034 -0.035_ -0.036 -0.039 SM#10 -0.006 -0.011 -0.003 -0.014 -0.015 -0.015 -0.018 -0.022 -0.018 -0.020 SM*11 -0.004 -0.010 -0.008 -0.007 -0.008 -0.007 -0.011 -0.009 -0.009 -0.012 SM*12 -0.018 -0.022 -0.017 -0.017 -0.019 -0.017 -0.019 -0.016 -0.0) 9 -0.021 Page 5

CATAVUSA SNSW DAM SETTLEMENT READ 50GS O f It 10/1/82 11/5/82 12/3/82 1/7/83 2/4/83 3/4/83 4/4/83 5/6/83 6/3/83 7/1/83 8/5/83 i I SM#1 593.701 593.895 593.698 593.709 593.708 593.708 593.709 593.704 593.706 593.713 593.703 f SM82 594.086 594.084 594.087 594.094 594.094 594.093 594.098 594.091 594.094 594.097 594.090 3_ l-- SM*3 594.634 594.632 594.637 594.645 594.639 594.639 594.643 594.643 594.643 594.645 594.638' SM#4 594.932 594.928 594.936 594.942 594.936 594.938 594.938 594.942 594.942 594.944 594.935 l SM85 594.568 594.562 594.571 594.580 594.573 594.577 594.570 594.578 594.580 594.580 594.572 j SM86 594.614 594.610 594.617 594.626 594.623 594.626 594.620 594.624 594.624 594.624 594.617 SM*7 594.335 594.334-594.338 594.342 594.340 594.339 594.336 594.341-594.342 594.343 594.339 SM*8 594.379 594.382 594.387 594.395 594.390 594.391 594.379 594.398 594.389 594.385 594.387 l l SM*9 594.046 594.045 594.046 594.054 594.048 594.050 594.056 594.049 594.044 594.054 594.047 SM*10 593.531 593.535 593.536 593.549 593.545 593.546 593.535 593.5'46 593.542 593.537 593.539 [ j SM#11 593.270 593.285 593.284 593.286 593.282 593.284 593.283 593.281 593.281 593.283-593.283 l SM*12 592.904 592.903 592.903 592.902 592.905 592.903 592.901 592.903 592.900 592.901 592.899 l l I 1 i 4 l SM81 -0.069 -0.075 -0.072 -0.061 -0.062 -0.062 -0.061 -0.066 -0.064 -0.057 -0.067 SM#2 -0.084 -0.086 -0.083 -0.076 -0.076 -0.077 -0.072 -0.079 -0.076 -0.073 -0.000 j SM#3 -0.096 -0.098 -0.093 -0.085 -0.091 -0.091 -0.087 -0.087 -0.087 -0.085 -0.092 4 SM#4 -0.078 -0.082 -0.074 -0.068 -0.074 -0.072 -0.072 -0.068 -0.068 -0.066 -0.075 j SM*5 -0.072- -0.078 -0.069 -0.060 -0.067 -0.063 -0.070 -0.062 -0.060 -0.060 -0.068 SM86 -0.076 -0.080 -0.073 -0.064 -0.067 -0.064 -0.070 -0.066' -0.066 -0.066 -0.073 j SMf7 -0.065 -0.066 -0.062 -0.058 -0.060 -0.061 -0.064 -0.059 -0.058 -0.057 -0.061 i l SMF8 -0.041 -0.038- -0.033 -0.025 -0.030 -0.029 -0.041 -0.022 -0.031 -0.035 -0.033 [ l SM*9 -0.034 -0.035 -0.034 -0.026 -0.032 -0.030 -0.024 -0.031 -0.036 -0.026 -0.033 I SM#10 -0.019 -0.015 -0.014 -0.001 -0.005 -0.004 -0.015 -0.004 -0.008 -0.013 -0.011 SMs11 -0.012 -0.005 -0.006 -0.004 -0.008 -0.006 -0.007 -0.009 -0.009 -0.007 -0.007 I SM812 -0.016 -0.017- -0.017 -0.018 -0.015 -0.017 -0.019 -0.017 -0.020 -0.019 -0.021 n i Page 6 i { i

CATAWBA SNSW DAM SETTLEMENT MEADWGGS l 9/2/83 10/7/83 11/10/83 12/5/83 1/6/84 2/3/84 3/2/84 4/6/84 5/4/84 6/1/84 7/9/84 SM#1 593.701, 59?.693 593.700 593.700 593.705 593.709 593.701 593.711 593.714 593.692 593.700 SM82 594.089 594.080 594.086 594.086 594.090 594.092 594.089 594.094 594.000 594.081 594.088 SM*3 594.635 594.629 594.637 594.636 594.642 594.645 594.637 594.646 594.649 594.634 594.634 SM84 594.932 594.924 594.934 594.933 594 937 594.944 594.934 594.944 594.945 594.929 594.931 SM*5 594.569 594.562 594.570 594.569 594.574 594.579 594.571 594.584 594.583 594.570 594.569 SM*6 594.617 594.610 594.615 594.611 594.615 594.621 594.618 594.629 594.628 594.615 594.616 SMs7 594.335 594.337 594.337 594.333 594.338 594.337 594.339 594.341 594.339 594.331 594.333 SM#8 594.385 594.381 594.377 594.383 594.389 594.391 594.384 594.390 594.382 594.374 594.380 SM*9 594.048 594.041 594.041 594.043 594.043 594.047 594.054 594.049 594.051 594.039 594.047 SMs10 593.537 593.532 593.533 593.538 593.541 593.541 593.538 593.5'44 593.535 593.526 593.531 SM#11 593.283 593.281 593.279 593.279 593.281 593.282 593.284 593.290 593.284 593.280 593.282 SM#12 592.901 592.902 592.850 592.899 592.899 592.900 592.901 592.911 592.903 592.901 592.901 i SM*1 -0.069 -0.077 -0.070 -0.070 -0.005 -0.061 -0.069 -0.059 -0.056 -0.078 -0.070 'SMs2 -0.081 -0.090 -0.084 -0.084 -0.080 -0.078 -0.081 -0.076 -0.170 -0.089 -0.082 SM#3 -0.095 -0.101 -0.093 -0.094 -O088 -0.085 -0.093 -0.084 -0.081 -0.096 -0.096 l SM#4 -0.078 -0.086 -0.076 -0.077 -0.073 -0.066 -0.076 -0.066 -0.065 -0.081 -0.079 SM*5 -0.071 -0.070 -0.070 -0.071 -0.066 -0.061 -0.069 -0.056 -0.057 -0.070 a.071 SM#6 -0.073 -0.080 -0.075 -0.079 -0.075 -0.069 -0.072 -0.M1 -0.062 -0.075 -0.074 SMf7 -0.065 -0.063 -0.063 -0.067 -0.062 -0.063 -0.061 -0.059 -0.06 ~ -0.069 -0.067 SMs8 -0.035 -0.039 -0.043 -0.037 -0.031 -0.029 -0.036 -0.030 -0.038 -0.046 -0.040 SM*9 -0.032 -0.039 -0.039 -0.037 -0.037 -0.033 -0.026 -0.031 -0.029 -0.041 -0.033 i SM#10 -0.013 -0.018 -0.017 -0.012 -0.009 -0.009 -0.012 -0.006 -0.015 -0.024 -0.019 SM#11 -0.007 -0.009 -0.011 -0.011 -0.009 -0.008 -0.006 0.000 -C.OO6 -0.010 -0.008 l SM#12 -0.019 -0.0 t 8 -0.070 -0.021 -0.021 -0.020 -0.019 -0.009 -0.017 -0.019 -0.019 i Page 7

.~ CATAWBA SNSW DAM SETTLEMENT READ 50GS l t ~ 8/9/84, 9/7/84 10/10/84 11/9/84 12/17/84 1/23/85 2/27/85 3/19/85 4/17/8C 5/9/83 6/17/85 } l>d#1 593.699 593.706 $93.701 593.698 593.396 593.682 593.698 593.686 593.678 593.693 593.696 SM#2

  • W.087 59.: "90 594.086 594.086 594.082 594.064 594.082 594.070 594.058 594.073 594.080 SM#3 L 94.630 594.63b 594.630 594.635 594.028 594.614 594.629 594.616 594.611 594.625 594.628 SMP4 534.929 594.929 594.927 594.930 594.926 594.907 594.928 594.913 5'34.912 594.922 594.925

_SM*5 594.572 594.570 594.564 594.570 594.562 594.547 594.562 594.551 594.549 594.558 594.564 SMF6 594.617 594.618 594.613 594.61!4 594.612 594.599 594.612 594.601 504.594 594.606 594.609 SM#7 594.334 594.334 534.333 594.335 594.334 594.319 594.327 594.324 594.321 594.325 594 323_ i SM#8 594.379 594.384 594.379 594.384 594.379 594.369 594.381 594.370 594.265 594.377 594.*18 t SMs9 594.041 594.048 594.045 594.052 594.046 594.033 594.046 594.032 594.031 594.037 594.042 SM#10 593.526 593.536 593.535 593.534 593.C31 Le 74 593.531 593.526 593.520 593.529 593.534 i SM#11 593.27d 593.282 593.284 593.281 593.280 ., c. ~73 593.280 593.278 593.272 593.280 593.278 SM#12 592.891 592.902 592.902 592.896 592.900 592.697 592.897 592.895 592.896 592.899 592.898 l SM#1 -0.071 -0.064 -0.063 -0.072 -0.074 4GL -0.072 -0.084 -0.092 -0.077 <9.074 ~' SMf2 -0.083 -0.080 -0.084 -0.084 -0.088 ~ -0.088 -0.100 -0.112 -0.097 -0.090 SM#3 -0.100 -0.095 -0.100 -0.095 -0.102 -0.'t 01 -0.114 -0.119 -0.105 -0.102 SM*4 -0.081 -0.081 -0.033 -0.080 -0.084 4 -0.002 -0.097 -0.098 -0.088 -0.085 SM#5 -0.068 -0.070 -0.076 -0.070 -0.078 -O O -0.078 -0.089 -0.091 -0.082 -0.076 ~ SM86 -0.073 -0.072 -0.077 -0.071 -0.078 -0.091 -0.078 -0.089 -0.096 -0.084 -0.081 SM87 -0.066 -0.066 -0.067 -0.065 -0.066 -0.081 ~~-0.073 -0.076 -0.079 -0.075 -0.077 SMs8 -0.041 -0.036 -0.041 -0.036 -0.041 -0.051 -0.039 -0.050 -0.155 l -0.043 -0.042 SM#9 -0.039 -0.032 -0.035 -0.073 -0.034 -0.047 -0.034 -0.048 -0.049 -0.043 -0.038 SwaiO -0.024 -0.014 -0.015 -0.O f 6 -0.019 -0.026 -0.019 -0.024 -0.030 -0.021 -0.016 SM/ I -0.016 -0.008 -0.006 -0.009 -0.010 -0.017 -0.010 -0.012 -0.018 -0.010 -0.012 SM#12 -0.029 -0.018 -0.018 -0.024 -0.020 -0.023 -0.023 -0.025 -0.024 -0.021 -0.022, l "see 8 ) l

CATAWBA SNSW DAM SETTLEMENT READmlGS l 7/12/85 8/19/85 9/18/85 10/24/85 11/10/85 12/5/85 1/13/86 2/2/86 3/10/86 4/2/86 5/2/86 SM*1 593.692 593.688 593.695 593.702 593.705 593.706 553.697 593.695 593.703 593.705 SM#2 594.077 594.068 594.023 594.084 594.086 594.091 594.077 594.079 594.083 594.089 SM#3 594.624 594.610 594.622 594.637 594.635 594.638 594.624 594.625 594.639 594.636 SMc4 594.922 594.906 594.917 594.933 594.931 594.933 504.921 594.921 594.925 594.933 SMs5 594.557 594.548 594.556 594.568 594.568 594.569 594.563 594.559 594.563 594.570 SM*6 594.608 594.604 594.604 594.617 594.618 594.622 594.609 594.611 594.617 594.613 SM#7 594.327 594.320 594.326 594.332 594.339 594.344 594.329 594.331 594.338 594.339 _SM#8 594.372 594.379 594.369 594.379 594.383 594.383 594.3/6 594.376 594.380 594.382 SM*9 594.034 594.036 594.042 594.042 594.048 594.059 594.043 594.044 594.050 594.055 SM#10 593.522 593.535 593.527 593.531 593.535 593.535 593.532 593.532 593.535 393.535 SM*11 593.272 593.269 593.275 593.279 593.282 593.281 593.282 593.280 593.284 593.284 SM#12 592.894 592.898 592.895 592.896 592.899 592.898 592.902 592.899 592.901 592.901 SM#1 -0.078 -0.082 -0.075 -0.068 -C ~15 -0.064 -0.073 -0.075 -0.067 -0.065 SMK2 -0.093 -0.102 -0.147 -0.086 -0 .;4 -0.079 -C.093 -0.091 -0.087 -0.081 SMK3 -0.106 -0.120 -0.108 -0.093 -0.635 -0.092 -0.106 -0.105 -0.091 -0.094 SM#4 -0.088 -0.104 -0.093 -0.077 -0.079 -0.077 -0.089 -0.089 -0.085 -0.077 SM#5 -0.083 -0.092 -0.084 -0.072 -0.072 -0.071 -0.080 -0.081 -0.077 -0.070 SM#6 -0.082 -0.086 -0.086 -0.073 -0.072 -0.068 -0.081 -0.079 -0.073 -0.077 SM*7 -0.073 -0.080 -0.074 -0.068 -0.061 -0.056 -0.071 -0.069 -0.062 -0.061 SM*8 -0.048 -0.041 -0.051 -9.041 -0.037 -0.037 -0.044 -0.044 -0.040 -0.038 SM#9 -0.0 46 -0.044 -0.038 -0.038 -0.032 -0.021 -0.037 -0.036 -0.030 -0.025 SM#10 -0.028 -0.015 -0.023 -0.019 -0.015 -0.015 -0.018 -0.016 -0.015 -0.015 SM*11 -0.018 -0.021 -0.015 -0.011 -0.008 -0.009 -0.008 -0.010 -0.006 -0.006 SMJ12 -0.G26 -0.022 -0.025 -0.024 -0.021 -0.022 -0.018 -0.021 -0.019 -0.019 Dage 9

CATAWBA SNSW DAM SETTLEMENT READMGS [ I l 6/13/86 7/17/86 8/51/86 9/15/86 10/17/86 11/4/86 12/9/86 1/30/87 2/24/87 3/27/87 11/8/93_ SM#1 593.703 593.705 593.706 593.694 593.696 593.696 593.697 593.704 593.705 693.692 593.689 SM*2 534.067 594.090 594.089 594.084 594.079 594.090 594.076 594.082 594.088 594.076 594.064 SM#3 594.638 594.639 534.634 594.629 594.624 594.626 594.621 594.628 594 636 594.622 594.613 SM#4 594.935 594.935 594.932 594.925 594.921 594.922 594.916 594.923 594.933 594.919 594.909 SM*5 594.572 594.571 594.568 594.565 594.559 594.560 594.554 59;.562 594.568 594.559 584.548 SM#6 594.616 594.610 594.616 594.614 594.605 594.607 594.606 L54.614 594.015 594.608 594.595 SM#7 594.340 594.338 591.337 594.335 594.326 594.329 594.328 594.332 594.339 594.328 594.315 SM#8 594.386 594.3// SS4.380 594.385 594.376 594.376 594.372 594.!'82 594.382 594.375 %34.369 SMf9 594.059 594.052l 594 050 594.051 t34.040 594.042 594.037 594.045 594.053 594.043 594.038 SM#10 593.536 593.532' 593.536 593.542 593.fi29 593.531 593.532 593.$37 593.533 593.531 593.528 SM#11 593.285 593.284 593.2',:4 593.291 593.281 593.280 593.281 593.283 593.281 593.280 593.279 SM#12 592.898 592.901 692.904 592.912 502.900 592.900 592.898 592.899 592.896 592.897 592.897 SM#1 -o067 -0.065 -0.064 -0.076 -0.074 -0.074 -0.073 -0.066 -0.065 -0.078 -0.081 SM#2 -0.083 -0.080 -0.081 -0.086 -0.091 -0.090 -0.094 -0.088 -0.082 -0.094 -0.106 SM#3 -0.C92_ -0.091 -0.096 -0.101 -0.103 -0.104 -0.109 -0.102 -0.094 -0.108 -0.117 SM*4 -0.075 -0.075 -0.078 -0.085 _-0.089 -0.088 -0.094 -0.087 -0.077 -0.091 -0.101 SPA #5 -0.068 -0.069 -0.072 -0.075 -0.081 -0.080 -0.086 -0.078 -0.072 -0.081 -0.092 SM#6 -0.074 -0.080 -0.074 -0.076 -0.085 -0.083 -0.084 -0.076 -0.075 -0.082 -0.095 SM#7 -0.060 -0.062 -0.063 -0.065 -0.074 -0.071 -0.072 -0.068 -0.061 -0.072 -0.085 SM*8 -0.034 -0.048 -0.040 -0.035 -0.044 -0.044 -0.048 -0.038 -0.038 -0.045 -0.051 S_M *9 -0.021 -0.028 -0.030 -0.029 -0.040 -0.038 -0.043 -0.035 -0.027 -0.037 -0.042 _SM410 -0.014 -0.018 -0.014 -0.008 -0.021 -0.019 -0.018 -0.013 -0.017 -0.019 -0.022 SM*11 -0.005 -0.006 0.006 0.001 -0.009 -0.010 -0.009 -0.007 -0.009 -0.010 -0.011 SMJ12 -0.022 -0.019 -0.016 -0.008 -0.020 -0.020 -0.022 -0.021 -0.024 -0.023 -0.023 Page 10

,n CATAWBA Sft3W DAM SETTLEMENT READWG8 g. ~ e 10/12/94 10/9/95 11/13/96 SM#1 - 593.687 593.689 593.692 -SMA2 Sa4.063 594.067 594.071 SM#3 594,611 594.608 594.615 SM*4 594.909 594.907 -594.913 SM#5 594.548 594.546 594.552 l SM#6 594.593 .594.592 -594.599 (- SM#7 594.315 594.316 594.318 SM#8 594.369 594.369 594.370 SMf9 594.038 594.035 594.030 SM#10 C93.526 593.526 593.527 SM#11 593.277 593.279 593.280 SM#12 -592.895 592.899 592.901 2 SM#1 -0.083 -0.081 -0.078 SM*2 -0.107 -0.103 -0.099 . SM#3 -0.119. -0.122- -0.115 SM#4

-0.101

-0.103 -0.097 - SM#5 --0.092 -0.094- -0.088 SMid -0.L 37 -0.098 -0.091 SM#7 -0.085 -0.084 -0.082 - SM#3 -0.051 -0.051 -0.050 SM#9 -0.042 -0.045 .-0.044 SM#10 -0.024 -0.024 -0.073 SMs11 -0.013 -0.011 -0.010 SMF12 .-0.025 -0.021 -0.019 Page 11 . - - = -.... -.. - -. a .. -}}

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