ML20217D170
| ML20217D170 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 03/19/1998 |
| From: | Barron H DUKE POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| TAC-M97262, TAC-M97263, NUDOCS 9803270337 | |
| Download: ML20217D170 (14) | |
Text
g Duke Pown compsuv a w,r-v w r
McGuire Nuclear Station dtW %-
MG01VP 12700 Hagen Ferry Rd.
- k',
Humenville, NC 28079-9340 H. B. Barrom Yue hnident. McGuire (704) 873-4800 OFFICE Nudear Generation Department (704) 875-48091Ax March 19,1998 U.
S. Nuclear Regulatory Commission Document Control Desk Washington, D.C.
20555
Subject:
McGuire Nuclear Station Docket Nos. 50-369, 370
-Response to Request for Additional Information TAC Nos. M97262 and M97263 By letter dated October 22, 1996, Duke Energy submitted a proposed technical specification amendment for McGuire Units 1 and 2.
The proposed amendment would allow continued unit operation at elevated containment lower compartment temperature for a period not to exceed 72 cumulative hours.
Please find attached additional information regarding the subject amendment which was requested by NRC letter dated May 7, 1997.
Attachments 1 through 6 contain proprietary information and
~ will be transmitted separately per 10 CFR 2.790.
J[
Questions should be directed to Kay Crane, McGuire Regulatory Compliance at (704) 875-4306.
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B. Barron, Vice President
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McGuire Nuclear Station I
i Attachment l
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'9903270337 900319 i
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PDR ADOCK 05000369 P
PDR 1
1
,U.
S. Nuclear Regulatory Commission (Document Control Desk Page 2 cc:
L. A.
Reyes, Regional Administrator U.
S. Nuclear Regulatory Commission Region II Atlanta Federal Center 61 Forsyth St.,'SW, Suite 23T85 Atlanta, GA 30323 Frank Rinaldi, Project Manager U.
S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Mail Stop 14H25 Washington, D.C.
20555 Scott Shaeffer Senior Resident Inspector McGuire Nuclear Station y
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Attachment
- 1. Provide a list of equipment within the scope of 10CFR 50.49 that is located in the containment lower compartment area.
A list of equipment within the scope of 10CFR 50.49, Environmental qualification of electric equipment important to safety for nuclear power plants and located in the containment lower compartment area has been provided
.previously as Duke Power Company, McGuire Nuclear Station Response to NUREG-0588, Attachment 1.
2.
Provide the qualification pressure and tosperature test profiles (in the form of curves) for the equipment listed in Item 1 above.
Do these environmental qualifications (EQ) test profiles for accident and post-accident conditions for each piece of equipment listed in Item 1 above envelope the revised EQ accident and post-accident temperature / pressure profiles?
If not, identify and provide justification for each case in which the EQ test profile does not envelope the revised accident and post-accident profile.
Justification _ involving the accident portion of the profiles'should include information other than Arrhenius methodology.
In lieu of providing the qualification pressure and temperature test profiles for all the equipment from question 1 above, the items below have been selected, as agreed to in our June 19, 1997, teleconference, as representative for groups of similar components located in the containment lower compartment area. The qualification test profiles for these items are supplied as attachments as follows:
Barton 764 transmitter (attachment 1)
MINCO RTD (attachment 2)
Rotork valve operator (attachment 3)
Valcor V526~ solenoid valve (attachment 4)
Okonite EP/Hypalon control cable (attachment 5)
A comparison'of accident temperature profiles for both the 125 degrees F and 135 degrees F initial condition are provided.as-attachment 6.
The Large Break LOCA and Main Steam Line Break-(MSLB)'inside containment temperature profiles (with containment initial temperature of 135-
~ =
, degrees F) are also provided as attachment 7.
The more
- severe' initial temperature profile results from the MSLB during blowdown of the faulted steam generator.
Following the blowdown period, containment' temperature drops rapidly and the long term containment temperature is less than the LOCA profile. A comparison of these attachments indicate that the environmental qualifications test profiles for accident and post-accident conditions for each piece of equipment listed above envelope the revised EQ accident and post-accident temperature / pressure profiles.
The profile used for qualification of equipment is developed by combining the highest temperature (from LOCA or MSLB) versus time.
3.
Discuss how historical containment temperature data is used to demonstrate that the effect of the proposed toeparature increase would not reduce the qualified life of components.
Step 1:
Containment temperature data stored on the Operator Aid Computer is extracted in order to determine a representative annual effective temperature which is the daily average containment temperature.
The daily average temperature is a linear average of hourly temperature readings.
On any given day, the temperature within containment will vary only 2-3 degrees F as a result of external temperature variations.
i Because the temperature variation is so small during any 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period, the linear average temperature was used in the calculation.
The linear average temperature was taken from Unit 1 during the period of November 1, 1995 to October 31, 1996 and is provided as attachment 8.
This period is i
notable because it is dominated by time at power with only 40 outage days incurred, Unit 1 has historically operated with the higher containment temperature, and the data period is prior to the Unit 1 steam generator replacement outage after which a significant reduction in containment heat load was achieved.
A degradation weighted average was determined using the Arrhenius methodology.
An activation energy of 0.5eV was used, representing a more temperature sensitive material, polyimide.
Each day was considered an interval with the daily average temperature representing the temperature during that interval.
The average was performed over the data period November 1, 1995 to October 31, 1996 using the following expression:
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-s t,gk T,
in u t, "
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11s the~ degradation-weighted average temperature is the material activation energy A
is Boltzmann's constant t,
is total service time (365 days) t, is time at service condition i ( 1 day )
J',
is temperature at service condition i The effective annual temperature was determined to be approximately 112 degrees F.
Step 2:
A hypothetical containment temperature of 135 degrees F is substituted for the actual data for the last 30 days and the degradation weighted average determined again.
The 30 day time period coincides with river water temperature peaking.
An effective annual temperature of 114 degrees F is determined for this case.
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- Attachment'8-Sheet 1 DATE,.
Temperature 'F
. Temperature *K 01-Nov-95 117.6488495 320.5826942 02-Nov-95 117.2338028 320.3521127
' 03-Nov-95 117.2338028 320.3521127 04-Nov-95 117.9845581 320.7691989 05-Nov-95 120.4931717 322.1628732 06-Nov-95 119.6752777 321.7084876
~ 07-Nov 95 -
119.7424316 321.7457954
. 08-Nov-95 120.0170898 321.8983832 09-Nov 120.0170898 321.8983832 10-Nov-95 119.8156738 321.7864855 11 Nov-95 119.7324582 321.7402546 12-Nov-95 118.3873978 320.9929988 13-Nov-95 118.3202591 320.9556995 14-Nov-95 118.8634872 321.2574929 15-Nov 95 118.6356201 321.1309001 16-Nov-95 117.5084686 320.5047048 17 Nov-95 117.7159882 320.6199934 Nov-95 117.0995178 320.2775099 Nov-95 116.4952545 319.9418081 20-Nov-95 116.1534424 319.7519124
~ 21 Nov 95 115.792778 319.5515433 22-Nov-95 115.4759369 319.3755205 23-Nov-95 115.0883484 319.1601935 24-Nov-95 115.0730972 319.1517207
~ 25-Nov-95 114.5970078 318.8872265 26-Nov-95 114.3223419
' 318.7346344 27-Nov 95 114.3223419 318.7346344 28-Nov-95 113.1748428 318.0971349 29 Nov-95 113.1524582 318.084699 30-Nov-95 112.8431625 317.9128681 Dec-95 113.223175 318.1239861 02-Dec-95 113.2187347 318.1215193 03 Dec-95 113.0799179 318.0443988 04-Dec-95 112.9271774 317.959543 05-Dec-95 112.6987686 317.8326492 06-Dec-95 112.7410583 317.8561435 07-Dec-95 112.4901657
'317.7167587 08-Dec-95 112.6383209 317.7990672 09-Dec-95 112.4139938 317.674441 10-Dec-95 111.9865875 317.4369931 11 Dec 95 112.1555252 317.5308473 12-Dec-95
-112.2734375 317.5963542 13-Dec-95 110.95784 316.8654666
' 14-Dec 110.2829056 316.4905031'
.15-Dec 92.41094208 '
306.5616345 Dec-95 80.17765045 299.7653614-
~
17 Dec-95 78.0921402
. 298.6067446 18-Dec-95.-
73.35429382 295.9746077
' 19-Dec 70.9982605
'294.6657003 20-Dec-95 70.73829651 294.5212758 21-Dec 70.09487915 294.1638218 Page 1.
u T
c..
.2-
.m.
. ~.. -. -. -.- --..-
n Sheet 1 22-Dec-95 L 73.15897369.
295.8660965 23,-Dec-95 71.77954102 295.099745 24-Dec-95 70.11321259 294.174007 25-Dec-95 69.56388092 293.8688227 26-Dec-95 68.72158051 293.4008781 27-Dec-95 67.61680603 292.7871145 28-Dec-95 67.5639214 292.7577341 29-Dec-95 66.98367214--
292.4353734 30-Dec 95.
65.5834621 291.6574789 31 Dec-95 64.015625 290.7864583 01 Jan-96 63.74095917 290.6338662 02 Jan-96 63.46629715 290.4812762 03-Jan-96 63.74095535
'290.6338641
. 04-Jan-96.
72.2678299 295.3710166 05-Jan-96 77.22403717 298.1244651 06 Jan-96 79.42747498 299.3485972
~ 07-Jan-96
'79.97679901 299.6537772 08-Jan-96 80.53834534 299.9657474 09-Jan-96 81.08768463 300.2709359 10-Jan-96 82.08132172 300.8229565 11-Jan-96 81.087677 300.2709317 12 Jan 84.07714081 301.9317449 13-Jan-96 86.07901001 303.0438944 14-Jan-96 81.31971741 300.399843 15-Jan-96 81.50669861 300.5037214 16-Jan-96 72.27461243 295.3747847 17-Jan-96 63.29396057 290.3855337 18-Jan-96 64.21624756 290.8979153 19-Jan-96 64.56495667 291.0916426 20-Jan-96 66.77449799 292.3191655 21-Jan-96 73.76583099 296.2032394 22-Jan-96 93.44288635 307.1349369 23-Jan-96 97.15872192 309.19929 24-Jan-96 111.6919479 317.2733044 25-Jan-96 112.7720108 317.8733393 26-Jan-96 115.2665405 319.2591892 27 Jan-96
~116.5847778 319.9915432 28-Jan-96 118.3140411 320.9522451 29-Jan-96 118.7096405 321.1720225 30-Jan-96 104.5136948 313.285386 31 Jan-96 103.4885025 312.7158347 01 Feb-96 103.3675308 312.6486282 02-Feb-96 103.5737152 312.7631751 03-Feb-96 114.5166779 318.8425988 04-Feb-96 104,1685791.
313.0936551
' 05-Feb-96 ~
103.3470535 312.637252.
06-Feb 102.4309464 312.1283035 07-Feb-96 101.7393951-311.7441084 -
08-Feb-96 101.2748566
- 311.4860314 ~
09-Feb-96
.:101.4581146 311.5878415
.10-Feb-96 101.9531021.
311.8628345 11 Feb-96 101.1781387 311.4322993 Page 2 4
i
-e t-She t1 12-Feb-96 '
'101.6290512 311.6628062 13-Feb-96
~ 107.2360229 -
314.7977905 14'Feb-96 108.6754608 315.5974782 15-Feb-96 107.8734913 315.1519396 16-Feb-96 102.7729111 312.3182839 17 Feb-96 102.807991 312.3377728 18-Feb-G6 103.665429 312.8141272 19-Feb 104.838707 313.4659483 20-Feb-96 105.783206
~ 313.99067 21 Feb-96 108.543891 315.5243839 22-Feb-96 110.796429 316.7757939 23-Feb-96 112.813462 317.8963678
, 24-Feb-96 113.0211563 318.0117535 25-Feb-96 113.2214737 318.1230409 26-Feb-96 113.2724991 318.1513884
- 27 Feb-96 113.3575974 318.1986652 28-Feb-96 113.4534912 318.2519396 29-Feb-96 113.6330185 318.3516769 01-Mar-96 115.9481125' 319.6378403 02-Mar 96 114.3562469 318.7534705 03-Mar-96 114.2389374 318.6882985 04-Mar-96 114.6406784 318.911488 05-Mar 96 114.7190781 318.9550434 06-Mar 96 114.6667328 318.9259627 07-Mar-96 iO4.7899933 313.4388852 08-Mar-96 103.4542007 312.6967782 09-Mar-96 104.1695862 313.0942145 10-Mar-96 104.5214157 313.2896754 11-Mar-96 104.4802933 313.2668296 12-Mar 96 104.5656509 313.3142505 13-Mar-96 104.8259506 313.4588615 14-Mar-96 105.0173111 313.5651728 15-Mar-96 110.389801 316.5498895.
16-Mar-96 111.7282715 317.2934842 Mar-96 112.1799393 317.5444107 18-Mar 96 112.3827057 317.6570587 19-Mar-96 112.5907135 317.7726186 20-Mar 96 112.8362122 317.9090068 21-Mar-96 113.6124268 318.3402371
'22 Mar 96 113.5881729 318.3267627 23-Mar-96 113.4498367-318.2499093 24-Mar-96 113.5924606 318.3291448 Mar-96 114.0781937 318.5989965 26-Mar-96 114.1636429 318.6464683
' 27-Mar-96
> 112.6316147 317.7953415 28-Mar-96 114.668129 318.9267383 29-Mar-96 112.5400543'
. 317.7444746 30-Mar-96.
114.0525513
'318.5847507 31-Mar-96 :
114.1636353 318.646464
. 01-Apr-96 114.338501 318.7436117 02-Apr 96 114.7810974 318.9894986 03-Apr-96 114.8249741 319.0138745 Page 3
=
Sheet 1 04-Apr 96 114.8917618 319.0509788 05-Apr-96 115.1585541 319.1991967 06-Apr-96 115.1162491 319.1756939-07 Apr 96 114.4391937 318.7995521 08-Apr 96 114.8899765 319.0499869 Apr-96 114.3952713 318.7751507 10-Apr 96 114.5556488 318.8642493 11 Apr 96 114.346756 318.7481978 12 Apr-96 114.568779 318.8715439 13-Apr-96 114.6540985 318.9189436 14 Apr-96 114.6654892 318.9252718 15-Apr-96 115.1207581 319.1781989 16-Apr 96 115.3605118 319.3113954 17 Apr-96 115.5772629 319.4318127 18-Apr 115.6691437 319.4828576 19-Apr 96 115.1130371 319.1739095 20-Apr-96 115.9120789 319.6178216 21 Apr 96 115.8031082 319.5572823 22-Apr-96 115.6567383 319.4759657 23-Apr-96 115.3702087 319.3167826 84-Apr-96 115.5892334 319.438463 25-Apr-96 115.7017746 319.5009859 26-Apr 96 116.0734482 319.7074712 27-Apr-96 116.250145 319.8056361 28-Apr-96 116.2700424 319.8166902
' 29-Apr-96 115.5375214 319.4097341 30-Apr 96 116.4358139 319.9087855 01-May 96 117.4169159 320.4538422 02-May-96 117.7156906 320.6198281 03-May-96 115.5862274 319.436793 May-96 116.1836624 319.7687013 05-May 96 116.1534348 319.7519082 06-May-96 115.8947754 319.6082086 May-96 115.3366241 319.2981245-08-May-96 115.793335 319.5518528 09-May-96 117.5270157 320.5150087 10-May 96 117.6000214 320.5555674 11-May-96 117.8259354 320.6810752 12 May-96 117.6184616 320.565812 13-May-96 117.9523697 320.7513165 May-96 117.8685913 320.7047729 May-96 117.7178268 320.6210149 16-May-96 117.8685913 320.7047729
.17-May-96 118.0170288 320.7872382
. 18-May-96 118.4057083 321.0031713 19-May-96 118.3446503 -
320.9692501 20-May-96 118.0729446.
320.8183026 21-May-96 118.2341003 320.9078335 22-May-96 '
118.2111816 -
320.8951009 23-May-96 118.2990265' 320.9439036 ~
i 24-May-96
'118.3856277 320.9920154 25-May-96 118.0774765 320.8208203 Page 4 1
Sheet 1 26-May-96 118.6489487 321.1383048 27'-May-96 118.376236 320.9867978 28-May-96 118.434227 321.019015.
29-May-96 118.5353241 321.0751801 30-May-96 118.4057159 321.0031755 31 May-96 118.2934341 320.9407967 01 Jun-96 118.4057083 321.0031713 02 Jun-96 118.3764954 320.9869419 03-Jun-96 118.6201172 321.1222873 04-Jun-96 112.8337402 317.9076335 05-Jun-96 111.9665756 317.4258753 06-Jun-96 111.9250565 317.4028091 07 Jun-96 111.5277481 317.1820823 08-Jun-96 111.5080719 317.1711511 09-Jun-96
-111.4586105 317.1436725 10-Jun-96 111.4518356 317.1399087 11 Jun-96 111.6029587 317.2238659 12 Jun-96 111.5913162 317.2173979 13-Jun-96 111.577446 317.2096922 14-Jun-96 111.89814
.317.3878555 15-Jun-96 111.8675919 317.3708844 16-Jun-96 111.8198166 317.3443425 17 Jun-96 111.7948837 317.330491 18-Jun-96 111.6875534 317.270863 19-Jun-96 111.8235321 317.3464067 20-Jun-96 111.6855392 317.269744 21-Jun 96 111.811348 317.3396378 22-Jun-96 111.6458054 317.2476696 23-Jun-96 111.8772278 317.3762377 24-Jun-96 111.8869553 317.3816418 25-Jun-96 112.0212402 317.4562446 26-Jun-96 112.083168 317.4906489 27-Jun-96 111.8453293 317.3585163 28-Jun-96 112.9285202 317.960289 29-Jun-96 112.2885437 317.6047465 30-Jun-96 112.1393509 317.5218616 01-Jul-96 112.3184967 317.6213871 02 Jul-96 112.4069519 317.6705288 03-Jul 96 112.6905441 317.8280801 04-Jul-96 112.3151398 317.6195221 05-Jul-96 112.8643341 317.9246301 06-Jul-96 112.3630524 317.6461402 07 Jul-96 112.5275421 317.7375234 08 Jul 93 112.4301987 317.6834437 09-Jul-96 112.542984 317.7461022 10 Jul-96 112.698761 317.832645 11-Jul 96 112.5010147 317.7227859 12 Jul-96 112.7142563 317.8412535 13-Jul-96 112.7658997 317.8699443 14 Jul-96 112.7675781 317.8708767 15-Jul-96 112.875885 317.9310472 16-Jul-96 113.0372009 318.0206672 Page 5
Sheet 1 1,7-Jul-96 113.1896057 318.1053365 16-Jul-96 113.3003922 318.1668845 19-Jul-96 113.2419891 318.1344384 20-Jul-96 113.1077118 318.0598399 21-Jul-96 113.2419815 318.1344342 22-Jul-96 112.7303925 317.850218 23-Jul-96 112.4301834 317.6834352 24-Jul-96 112.4895859 317.7164366 25-Jul-96 112.4154129 317.6752294 26-Jul 96 112.7470703 317.8594835 27-Jul-96 112.4946365 317.7192425 28-Jul-96 112.4973297 317.7207387 29-Jul-96 112.2925186 317.6069548 30-Jul-96 112.4191055 317.6772808 31-Jul-96 112.2468414 317.5815786 01-Aug-96 112.4973297 317.7207387 02-Aug-96 112.8330307 317.9072393 03-Aug-96 113.0059738 318.0033188 04-Aug-96 112.9235916 317.9575509 05-Aug-96 112.8085098 317.8936166 06-Aug-96 112.7763138 317.8757299 07-Aug-96 113.1157684 318.0643158 08-Aug-96 112.9649429 317.9805239 09-Aug-96 112.9150543 317.952808 10-Aug-96 113.037262 318.0207011 11-Aug-96 113.0429077 318.0238376 12-Aug-96 113.2897491 318.1609717 13 Aug-96 113.3091202 318.1717334 14-Aug-96 113.735405 318.4085583 15-Aug-96 113.6448212 318.358234 16-Aug-96 113.4756851 318.2642695 17-Aug-96 113.6744919 318.3747177 18-Aug-96 113.8256226 318.4586792 19-Aug-96 114.0195313 318.5664063 20-Aug-96 113.8859253 318.4921807 21-Aug-96 114.1209106 318.6227281 22-Aug-96 113.9192429 318.5106905 23-Aug-96 114.1880569 318.6600316 24-Aug 96 114.1880493 318.6600274 25-Aug 96 114.4553375 318.8085208 26-Aug-96 114.4566803 318.8092668 27 Aug-96 114.2587357 318.6992976 28-Aug-96 114.5970078 318.8872265 29-Aug-96 114.323761 318.7354228 30-Aug-96 114.7635193 318.9797329 31-Aug-96 114.7984238 318.9991243 01-Sep-96 114.9972839 319.1096022 02-Sep-96 115.2610168 319.2561205 03-Sep-96 114.9327011 319.0737228 04-Sep-96 115.2464828 319.248046 05-Sep-96 115.3416519 319.3009177 06-Sep-96 115.5363693 319.4090941 Page 6
Sheet 1 07 Sep-96
~ 116.1104813 319.7280451 08-Sep 115.7224121 319.5124512'
- 09-Sep-96
.115.9513855 319.6396586 10-Sep-96 116.6637878 320.0354377 11 Sep 117.1105194 320.2836219 12-Sep-96 117.1136856 320.2853809 13-Sep-96 117.5141449 '
320.5078583 14 Sep 117.7060852 320.6144918 15-Sep-96 117.5126953 320.507053 16-Sep-96 117.3680878 320.4267154 17-Sep-96 117.912262 320.7290344 18-Sep-96 117.4434738 320.4685966 19-Sep-96 118.2531281-320.9184045 20-Sep 118.1374359 320.8541311
' 21-Sep-96 118.2264938 320.9036077 22-Sep-96 118.0371933 320.7984407 23-Sep-96 118.0569763 320.8094313 24-Sep-96 118.0512009 320.8062227
' 25-Sep-96 118.5274506 321.0708059 26-Sep-96 118.4069977 321.0038876 27-Sep-96 118.4616394 321.0342441 28-Sep-96.
119.0270386 321.3483548 29 Sep-96 119.2291641 321.4606467 30-Sep-96 119.1320572 321.4066984 01-Oct-96 118.6636963 321.1464979 02-Oct-96 117.9940033 320.7744463 Oct-96 118.0231705 320.7906503 04-Oct-96 ~
117.6639709
.320.591095 05-Oct-96 118.0490112 320.8050062 06-Oct-96 118.0606155 320.8114531 07 Oct-96 118.1859818 320.881101 08-Oct-96 117.9580307 320.7544615 09-Oct-96 118.2168121 320.898229 10-Oct-96 117.9407196 320.7448442 11-Oct-96 118.2430496
. 320.9128053 12-Oct-96 118.6405869 321.1336594 13-Oct 96 118.4784775 321.0435986 14-Oct-96 118.5590363 321.0883535 15-Oct-96 !
118.8634872 32*e.2574929 16-Oct-96 119.0662689.
321.3701494 17-Oct-96 118.7595825 321.1997681
' 18-Oct-96 120.130722 321.9615122 19-Oct 96 120.6345215 322.2414008 20-Oct-96 121.0996094 322.499783 21 Oct 96 121.7037888 322.8354382-22-Oct 121.0364075 322.4646708 23-Oct-96
.122.1219788 323.067766 24-Oct-96 122.0160522 323.0089179 s 25-Oct 96 122.1167679-323.064871 26-Oct-96 122.1839066..
323.1021703
' 27-Oct-96
'122.048317 323.0268428 28-Oct 96 -
-121.9230881 322.9572712 Page 7
("-
Sheet 1 29 & -96 121.5866241
- 1.7703467-30-Oct-96 121.4431229 322.6906238 31-Oct-96 121.8196722 322.8992623 l
i l.
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-i Page 8 i_
_ _ _ _....,