ML20041E664

Post-Tensioning Sys Surveillance for June-Jul 1980 LaSalle County Nuclear Power Station Unit 1 Containment Structure

ML20041E664
Person / Time
Site:	LaSalle
Issue date:	03/05/1982
From:	SARGENT & LUNDY, INC.
To:
Shared Package
ML20041E661	List: ML20041E660 ML20041E664
References
SL-3808, NUDOCS 8203110223
Download: ML20041E664 (29)

Text

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POST-TENSIONING SYSTEM SURVEILLANCE FOR JUNE - JULY 1980 l

LA SALLE COUNTY NUCLEAR POWER STATION g

UNIT 1 CONTAINMENT STRUCTURE I

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I REPORT PREPARED FOR COMMONWEALTH EDISON COMPANY I

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REPORT SL-3808 I

OCTOBER 22,1980 REVISED MARCH 5,1982 llSARGENT&LUNDYU

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b4MIOM.TT b JUNDY ENGINEERti roVNCEDBY FREDER Cm S ARG E NT -18 91 55 EAST MONROE STREET CHICAGO.lLLINOIS 60603 TELEpwoNE 3:2-269 2000 C ABLE AOCRESM - S ARLUN-CHIC AGO JOHN M. MC L AUGHLIN PARTNER 312-269 7676 March 5,1982 Mr. T. E. Watts General Design Engineer Commonwealth Edison Company P. O. Box 767 Chicago, Illinois 60690

Dear Mr. Watts:

Enclosed are 12 copies of the following report:

Report SL-3808 Post-Tensioning System Surveillance for June - July 1980 La Salle County Nuclear Power Station Unit 1 Containment Structure Revised March 5,1982 This report represents the results of the post-tensioning system surveillance for Unit I containment. The surveillance program was conducted in 1980 by Corsmonwealth Edison Company, and the original report was issued on October 22,1980. This report is now updated to include laboratory analysis results of casing grease filler and the ultimate strength values of tendon wire specimens. The test results indicate that the casing filler is accep'cble for use and the tendon wire conforms to the specified strength requirements.

Yours very truly, l

he l

J. M. McLaughl..

Manager, Structural Department JMM:VR:rhg Enclosures J

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I POST-TENSIONING SYSTEM SURVEILLANCE I

FOR JUNE - JULY 1980 l

LA SALLE COUNTY NUCLEAR POWER STATION UNIT 1 CONTAINMENT STRUC'i URE g

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REPORT PREPARED FOR COMMONWEALTH EDISON COMPANY I

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I REPORT smeos OCTOBER 22,1980 l

REVISED MARCH 5,1982 l

lSARGENT&LUNDYl g

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T A B L li OF C O N T I! N T S g

I PAGE I

INTitODUCTION 1

11 SUMMAItY AND CONCLUSION 1

A.

Casing Filler 1

B.

End Anchorage Components 2

C.

Wire Condition and Tensile Strength 2

D.

Tendon Stress Level 2

Ill DISCUSSION OF RESUL'IS 2

A.

Casing Filler 2

D.

End Anchorage Components 3

C.

Concrete Condition 4

D.

Wire Condition and Tensile Strength 4

E.

Tendon Stress Level 5

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ii SL-3808 I

LIST OF FIG U R ES LIST OF T A BL ES i

I Figures 1 - Stress versus Log Time; Vertical Tendons 2 - Stress versus Log Time; Iloop Tendons Tables 1 - Casing Filler Inspection 2 - Laboratory Analysis of Casing Filler 3 - End Anchorage Component Inspection 4 - Stress Levelin Surveillance Tendons 5 - Stress Levelin Additional Tendons 6 - Ultimate Strength of Tendon Wire Specimens 7 - Replaced Quantities of Casing Filler I

I iii SL-3808

l SARGENT O LUNDY E

tuclWLERS ClflCAGO E

POST-TENSIONING SYSTEM SURVEILLANCE FOR JUNE-JULY 1980 I

LA SALLE COUNTY NUCLEAR POWER STATION UNIT 1 CONTAINMENT STRUCTURE COMMONWEALTH EDISON COM PANY I INTRODUCTION The purpose of the surveillance program is to obtain data to assess and ensure the continued quality and structural performance of the containment structure post-tensioning system, including its major components. He program consists of periodic inspections of representative samples from each group of tendons (vertical and hoop).

The surveillance procedure checks for any symptoms of material deterioration or force reduction, and assesses the condition and functional capability of the system.

Bis process verifies the adequacy of the system and provides an opportunity to take proper corrective action should adverse conditions be detected.

The requirements for the progra m are detailed in the Commonwealth Edison Company's La Salle County Unit 1 Tendon Surveillance Test Procedure, Revision 6, July 22,1980.

He procedure is in agreement with the U.S. Nuclear Regulatory Commission Guide No.1.35, Revision 2.

The surveillance program was conducted June 9 through July 31, 1980, in accordance with the approved Tendon Surveillance Test Procedure, Revision 6, by Commonwealth Edision Company.

Results of the tendon surveillance, inspection, and testing are stated in this report.

ll SUMM ARY AND CONCLUSIONS A.

Casing Filler No significant discoloration of the casing filler was observed.

Laboratory analysis of the casing filler samples revealed no presence of detectable amounts PROJECT 4266-00 SL-3808

SARGENT Q LUNDY Rev. 1 EWGINEERS OllCAGO of impurities. No particular trend of moisture in the tendon casing was observed.

B.

End Anchorage Components The end anchorage components were found to be in excellent condition with no sign of the development of adverse conditions such as cracking, excessive corrosion or deformed buttonheads.

C.

Wire Condition cnd Tensile Strength The tendon wires were found to be in excellent condition and no corrosion along the length of the sample wires was observed. The tensile strength of the wires tested is well above the minimum specified by ASTM A 421.

R D.

Tendon Stress Level Each group of tendons (vertical and hoop) selected for the surveillance showed an average lift-off stress greater than the minimum design value, verifying that the structure continues to conform to the design requirements. The average lift-off stresses also proved to be greater than the anticipated values.

In all, the surveillance confirms that: (a) the post-tensioning system consisting of casing filler, end anchorage components, and tendon wires is in excellent condition; (b) the trend of prestress loss is within the value allowea in the design; l

(c) the entire system is performing according to design requirements; (d) the 1

structuralintegrity of the containment is being preserved.

Ill DISCUSSION OF RESULTS l

A.

Casing Filler I

The casing filler at the ends of the selected tendons was visually examined and samples were takep for laboratory analysis. Additional samples for analysis were I SL-3808

5 ARGENT Q LUNDY t tar,s t4.r a s CH KX.O taken from the interior casing filler, obtained from each of the two tendons from which a wire was removed for tensile testing. Laboratory results of the casing filler revealed no detectable amounts of impurities present. Table 2 gives the results of the laboratory analysis of the filler.

The coating of the casing filler on the end anchorage components along with the color and consistency were examined. No significant discoloration of the casing filler was observed. The presence of the very dark brown, almost black, shop-applied protective grease (Type 1601) was noted in several tendons, especially in the vertical tendons. The presence of the Type 1601 grease is acceptable in accordance with the approved INItYCO installation procedures. Table 1 is a listing of the inspection particulars.

No significant moisture was observed in the casing filter, with one exception.

One vertical tendon, V20A, revealed a detectable amount of moisture in the fic!d-end grease can and in the tendon casing. The tendon casing filler was subsequently drained and the anchorage components inspected. The inspection showed no sign of corrosion of the anchorage components.

B.

End Anchorage Components The end anchorage components, comprised of buttonheads, anchorheads, shims and bearing plates, were inspected for acceptable shape, general appearance, cracks, splits and corrosion. Results of the inspections are given in Table 3.

Inspection results for the buttonheads were compared with the original installation inspection and no changes were noted. The buttonhead for one wire in vertical tendon V30A was not in place. No buttonhead was found in the grease can and there was no evidence that the buttonhead had pulled through the anchorhead. It is assumed that the buttonhead was not in place when the grease can was installed. This is acceptable since only one buttonhead was missing I

whereas the tendon installation specification (J-2533, 08-21-78,13-213.2) allows l

two broken wires in a tendon. No additional buttonheads were found missing in any other tendon inspected.

1 SL-3808 l

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SARGENT c LUNDY g y, 1

tucmrEns ClllCAGO I

Upon inspection of the anchorheads, shims and bearing plates, no cracking or corrosion was noted. Indication of very minor surface corrosion was noted on four anchorhead coupling threads. This does not affect the capacity of the anchorheads and therefore the anchorage components meet the requirements of the inspection criteria.

C.

Concrete Condition The concrete surface around both the field and shop end anchorage was inspected for indications of deterioration.

No cracking or deterioration within an approximate 3 ft x 3 ft area of any of the anchorages was noted (see Table 3).

D.

Wire Condition and Tensile Strength From each group of tendons (vertical and hoop) selected for testing, one tendon was randomly picked for complete detensioning and identification of broken or I

damaged wires. From each of the two tendons selected, one wire was removed for tensile testing.

The wires removed were visually checked for corrosion and pitting to determine their general condition.

The tendon wires were found to be in excellent condition. No corrosion along the length of the wires was detected. The general condition of the wires was determined to be equivalent to their condition at the time of initial installation.

Three specimens were cut from each of the extracted wires for tensile testing.

The samples were taken from each end and at mid-length of the wires. The ultimate strength of the wire specimens was determined by tensile testing. Test R

results summarized in Table 6 show that the ultimate strength of the tendon wire i

l is well above the minimum (240 ksi) specified by ASTM A421.

Following the wire removal, the tendons were retensioned to approximately the l

same stress level indicated by the lift-off force data obtained during the j

surveillance.

The casing filler which was removed during the surveillance l

process was replaced with new filler.

Table 7 shows the amount of filler replaced.

I SL-3808

l 5 ARGENT Q LUNDY E

EwclNEERS ClllCAGO E.

Tendon Stress Level There are 188 horizontal tendons and 120 vertical tendons in the La Salle Containment Structure. Out of the 308 tendons,14 tendons were selected for testing, 9 hoops and 5 verticals. %is is in compliance with the regulatory position in Regulatory Guide 1.35.

A lift-off test procedure involving shim-tapping was originally proposed for the test. A slight modification to the test procedure was made during the test in order to improve the accuracy of the reading.

A feeler-gauge method was introduced after it was found that the shim-tapping method failed to give satis-factory repeatability.

I The lift-off stress was determined by temporarily placing two feeler gauges, one on each side, in between the load bearing surfaces of the shim stack. With the feeler gauges placed and the shim stack loaded, the load was once again transferred to the tensioning ram; the lift-off readings were taken at the point where the feeler gauges were free to be removed from the shim stacks.

The above method was used throughout the test, except for two horizontal tendons were the shim stacks were not accessible from both sides. In this case, a change of pumping rate method was used. This method requires the use of a small capacity pump for lift-off. De lift-off stress is more accurately signaled by a sudden decrease in the pressurization rate.

The vertical tendons were tested from the field end only since they were stressed from only that end. Iloop tendons were tested from both the field and the shop ends.

Results of the measured tendon stress are given in Table 4 and are graphically illustrated in Figures 1 and 2.

l l SL-3808

l SARGENT Q LUNDY E

ENGINEERS ClllCACO I

I It should be noted that the design of the containment is based upon one stress value for all vertical tendons and one stress value for all hoop tendons.

Therefore, the measured lift-off stress is considered acceptable if the average value of each group of tendons is equal to or greater than the minimum design value. The minimum design value for each group of tendons is given in the fifth column of Table 4.

The average value of the measured vertical tendons is 155.7 ksi, which is greater than the design value of 141.7 ksi. 'Ihe average value of the measured hoop tendons is 155.2 ksi, which is also well above the required design value of 140.4 ksi.

The last column in Table 4 gives the anticipated tendon stress for this surveillance. The average value of the measured vertical tendons is 155.7 ksi, which is greater than the anticipated value of 147.5 ksi. 'Ihe average measured value of the hoop tendons is 155.2 ksi, which is also greater than the anticipated value of 145.7 ksi.

As a precautionary measure, a higher than anticipated tendon stress was used as a guideline to ensure that all required lift-off data would be collected in one operation so that the need to reassemble the equipment later at the site could be avoided.

Accordingly, lift-off values of 12 additional tendons were obtained during this surveillance. Table 5 gives the lift-off results for these 12 additional tendons. 'Ihe average lift-off tendon stress of the additional tendons is 156.6 ksi for vertical tendons and 150.5 ksi for hoop tendons. 'Ihese values are again within the acceptance criteria of being greater than the minimum design value and they are also greater than the anticipated values. Two hoop tendons 22AC and 22CB showed a measured tendon lift-off stress slightly lower than the anticipated value for this surveillance, but still well above the minimum design value. SL-3808

SARGENT & LUNDY E NGIN E E R5 cmcaco I

It is concluded that the trend of prestress loss is as anticipated and within the value allowed in the design.

IIence, the integrity of the containment post-tensioning system is preserved.

I SARGENT & LUNDY, by

[.l. C. Papfenf%s R. Cheboub Structural Design Engineer Supervisor, Structural I

Structural Design &

Engineering Specialists Drafting Division I

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ex C. N. Etishnaswag E. R. Weaver Chief Structural Senior Structural Engineering Specialist Project Engineer offlitf x c #^' \\

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STRESS VERSUS LOG TIME; HOOP TENDONS 160 56CB

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SARGENT & LUNDY E N GlN E E Rs TABLE 1 CHICAGO PAGE 1 OF 3 CASING FILLER INSPECTION

• Denotes that the presence of Inryeo shop protective grease (type 1601) was noted)

Filler Coating Acceptance Filler Color and Consistency Button Anchor Bearing Tendon End IIeads Ileads Shims Plate Cap Acceptance Shop Yes Yes Yes Yes Yes Yes VISA Field Yes Yes Yes Yes Yes Yes*

Shop Yes Yes Yes Yes Yes Yes V15C Field Yes Yes Yes Yes Yes Yes*

Shop Yes Yes Yes Yes Yes Yes V20A Field Yes Yes Yes Yes Yes Moisture Shop Yes Yes Yes Yes Yes Yes V29A Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes V47C Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes 1CB Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes 12AC Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes 12CB Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes 20CB Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes 21AC Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes 48AC Field Yes Yes Yes Yes Yes Yes i

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I SARGENT & LUNDY ENOlMEERS TABLE 1

• • 'C^

SL-3808 PAGE 2 OF 3 CASING FILLER INSPECTION, Cont.

• Denotes that the presence of Inryco shop protective grease (type 1601) was noted.

Filler Coating Acceptable Filler Color and Consistency Button Anchor Bearing I

Tendon End Heads Heads Shims Plate Cap Acceptable Shop Yes Yes Yes Yes Yes Yes V28A Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes V30A Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes llAC Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes 13AC Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes 18CB Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes 19CB Field Yes Yes Yes Yes Yes Yes*

Shop Yes Yes Yes Yes Yes Yes 20AC Field Yoo Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes 21CB Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes 22CB Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes*

22AC Field Yes Yes Yes Yes Yes Yes l

l Shop Yes Yes Yes Yes Yes Yes 55BA Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes 57BA Field Yes Yes Yes Yes Yes Yes i

! II

SARGENT & LUNDY ENGINEERS TABLE 1 cme" SL-3808 PAGE 3 OF 3 i

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i CASING FILLER INSPECTION, Cont.

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• Denotes that the presence of Inryco shop protective grease (type 1601) was noted.

Filler Filler Color and Consistency Button Anchor Bearing Tendon End IIcads Heads Shims Plate Cap Acceptable I

Shop Yes Yes Yes Yes Yes Yes 1

56BA Field Yes Yes Yes Yes

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Shop Yes Yes Yes Yes Yes Yes E

56CB Field Yes Yes Yes Yes Yes Yes Shop Yes Yes Yes Yes Yes Yes 70B Field Yes Yes Yes Yes Yes Yes l

SARGENT & LUNDY E Pd O f N E E R S TABLE 2 CHICGGO SL-3808 PAGE 1 OF 2 I

REV.1 LABORATORY ANALYSIS OF CASING FILLER Water Soluble Water Soluble Water Soluble Tendon Chloride Nitrates Sulfides Mark (2 ppm Limit)

(4 ppm Limit)

(2 ppm Limit)

VISA Shop End 2.1*

<1

<1 VISA Field End 2.2 *

<1

<1 V15C Shop End 2.2*

<1

<1 V15C Field End 1.8

<1

<1 V20A Shop End 1.8

<1

<1 V20A Field End 2.3 *

<1

<1 V28A Shop End 1.8

<1

<1 V28A Field End 2.3*

<1

<1 V29A Shop End 1.6

<1

<1 V29A Field End 2.3 *

<1

<1 I

R V30A Shop End 1.9

<1

<1 V30A Field End 2.2 *

<1

<1 V47C Shop End 2.0

<1

<1 V47C Field End 2.1*

<1

<1 V47C Shop Casing 2.2*

<1

<1 V47C Field Casing 0.7

<1

<1 1CB Shop End 1.5

<1

<1 1CB Field End 1.5

<1

<1 11 AC Shop End 1.4

<1

<1 11AC FicIJ End 2.0

<1

<1 12AC Shop End 1.8

<1

<1 12AC Field End 0.5

<1

<1 12CB Shop End 1.6

<1

<1 12CB Field End 1.4

<1

<1 13AC Shop End 2.2*

<1

<1 13AC Field End 2.2*

<1

<1 18CB Shop End 2.3*

<1

<1 18CB Field End 0.9

<1

<1

• Exceeds limit, judged not to be detrimental.

l SARGENT & LUNDY W

ENjgEERS TABLE 2 SL-3808 I

PAGE 2 OF 2 REV.1 LABORATORY ANALYSIS OF CASING FILLER, Cont.

I Water Soluble Water Soluble Water Soluble Tendon Chloride Nitrates Sulfides Mark (2 ppm Limit)

(4 ppm Limit)

(2 ppm Limit) 19CB Shop End 1.4

<1

<1 19CB Field End 2.0

<1

<1 20AC Shop End 2.0

<1

<1 20AC Field End 2.0

<1

<1 20CB Shop End 1.6

<1

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<1

<1 20CB Shop Casing 1.6

<1

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<1 21 AC Shop End 2.3 *

<1

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<1

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<1

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<1

<1 22AC Shop End 1.5

<1

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<1

<1 22CB Shop End 2.4 *

<1

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<1

<1 48AC Shop End 1.7

<1

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<1

<1 55BA Shop End 1.3

<1

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<1

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<1

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<1

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<1

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<1

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<1

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• Exceeds limit, judged not to be detrimental.

I

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l END ANCHORAGE COMPONENT INSPECTION Buttonheads Anchor Heads Shims Bearing Plate Concrete l

Tendon Mark End Corrosion Cracks Shape Corrosion Cracks Corrosion Cracks Corrosion Cracks Cracks l

Shop None None Good None None Non?

None None None None VISA Field None None Good None None None None None None None Shop None None Good None None None None None None None l

V20A Field None None Good None None None None None None None Shop None None Good None None None None None None None m

V29A Field None None Good None None None None None None None 2

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Shop None None Good None None None None None None None V15C Field None None Good None None None None None None None noz kz d Shop None None Good None None None None None None None gn p V47C Field None None Good None None None None None None None om p

3 C Shop None None Good None None None None None None None

• 2 ICB Field None None Good None None None None None None None O

Shop None None Good None None None None None None None 12AC Field None None Good-None None None None None None None Shop None None Good None None None None None None None 12CB Field None None Goo?.

None None None None None None None Shop None None Good None None None None None None None 20CB Field None None Good None None None None None None None Shop None None Good None None None None None None None 21AC Field None None Good None None None None None None None Shop None None Good None None None None None None None 48AC Field None None Good None None None None None None None a w as

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SARGENT O LUNDY cu ciN e cos TABLE 3 c"'c "

SL-3808 PAGE 2 OF 3 ea a

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cc cc cc cc cc cc cc cc cc cc cc n @@ @z 22 2 22 2 @@ 20 22 2 22

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00 00 00 00 OC 00 00 00 00 00 4.,0 0

W

.c w

.c w

.c w

.c w 4w

.c -e4

.c w 4w

.c w

.c w 4

Mb MA MA MA MN MA MW MA MA MW MN c

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U U

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M END ANCHORAGE COMPONENT INSPECTION, Cont.

Buttonheads Anchor !!eads Shims Bearing Plate Concrete Tendon Mark End Corrosion Cracks Shape Corrosion Cracks Corrosion Cracks Corrosion Cracks Cracks y

" 21 Shop None None Good None None None None None None None Q

pg 22AC Field None None Good None None None None None None None Shop None None Good None None None None None None None QZ gME 22CB Field None None Good None None None None None None None

) r-Shop None None Good None None None None None None None 55BA Field None None Good Minor None None None None None None 0

Shop None None Good None None None None None None None 57BA Field None None Good None None None None None None None o m -4 Qs?

w8C o

-n W

SARGENT & LUNDY cmesatens TABLE 4 SL-3808 STRESS LEVEL IN SURVEILLANCE TENDONS Measured Measured Gauge Tendon Minimum Tendon Stress Tendon Anchor Pressure Stress Design Value Anticipated for this Mark End (PSI)

(KSI)

(KSI)

Surveillance (KSI)

V VISA Field 4600 156.2 o

o E

R V15C Fic!d 4600 156.2 T

I V20A Field 4600 156.2 141.7 147.5 C

A V29A Field 4525 153.6 L

o V47C Field 4600 156.2 Average 155.7 Shop 4700 159.6 ICB Field 4550 154.5 Shop 4600 156.2 12CB Field 4650 157.9 Shop 4525 153.6 12AC Field 4475 151.9 I11 Shop 4400 149.4 20CB Field 4300 146.0 140.4 145.7 O

O Shop 4500 152.8 P

21AC Field-4450 151.1 Shop 4675 158.7 48AC Field 4625 157.0 Shop 4600 156.2 56BA Field 4475 151.9 Shop 4700 159.6 56CB Field 4750 161.3 rhop 4700 159.6 o

70B Field 4600 156.2 Average 155.2

SARGENTO LUNDY cmosaccas TABLE S C H ICGGO SL-3808 I

STRESS LEVEL IN ADDITIONAL TENDONS Measured Measured Gauge Tendon Minimum Tendon Stress Tendon Anchor Pressure Stress Design Value Anticipated for this Surveillance (KSI)

Mark End (PSI)

(KSI)

(KSI)

V E

f V28A Field 4B75 148.5 d

R V30A Field 4850 164.7 141.7 147.5 Average 156.6 L

Shop 4525 153.6 n

llAC Field 4450 151.1 Shop 4325 146.8 13AC Field 4400 149.4 Shop 4500 152.8 18CB Field 4500 152.8 Shop 4300 146.0 19CB Field 4475 151.9 Shop 4350 147.7 II 20AC Field 4450 151.1 140.4 145.7 IOO Shop 4450 151.1 P

21CB Field 4475 151.9 Shop 4300 146.0 22AC Field 4200 142.6 Shop 4225 143.2 I

22CB Field 4350 147.3 Shop 4625 153.5 55BA Field 4725 160.4 Shop 4600 156.2 I

p 57BA Field 4550 154.5 Average 150.5

I i

SARGENT & LUNDY EN NEERS TABLE 6 SL-3808 I

REV.1 ULTIMATE STRENGTH OF TENDON WIRE SPECIMENS l

i Break Tensile Tendon Specirnen Force Diameter Area Strength Mark Location (Lbs.)

(In.)

(In.2)

(ksi)

Left End 12000

.251

.04909 244.44 V47C Center 12300

.251

.04909 250.56 Right End 12350

.251

.04909 251.57 R

I Left End 12750

.251

.04909 259.72 20CB Center 12700

.251

.04909 258.70 Right End 12700

.251

.04909 258.70 I

I l

I 1

'I

SARGENT & LUNDY cmoiacens TABLE 7 c"'c^oo St.3808 REPLACED QUANTITIES OF CASING FILLER Approximate Approximate Approximate Amount Replaced Amount Replaced Total Amount Shop End Date Field End Date Replaced Date (gal)

(gal)

VISA 15 7-25 40 7-25 55 7-25 V15C 40 7-25 40 7-25 V20A 15 7-24 35 7-24 50 7-24 V28A 10 7-24 45 7-23 55 7-2 V29A 50 7-23 50 7-23 V30A 15 7-24 40 7-23 55 7-24 V47C 40 7-25 40 7-25 1CB 2

7-25 2

7-25 4

7-25 11AC 2

7-30 2

7-30 4

7-30 12AC 2

7-30 2

7-28 4

7-30 12CB 2

7-31 2

7-28 4

7-31 13AC 2

7-30 2

7-28 4

7-30 18CB 2

7-30 2

7-30 4

7-30 19CB 2

7-30 2

7-30 4

7-30 20AC 2

7-30 2

7-28 4

7-31 20CB 4

7-30 4

7-28 8

7-30 21AC 2

7-31 2

7-30 4

7-31 21CB 2

7-30 2

7-30 4

7-30 22AC 2

7-31 2

7-28 4

7-30 i

22CB 2

7-30 2

7-30 4

7-30 48AC 2

7-31 2

7-31 4

7-31 55BA 2

7-31 2

7-31 4

7-31 56BA 2

7-31 2

7-31 4

7-31

(

56CB 2

7-31 2

7-31 4

7--31 57BA 2

7-31 2

7-31 4

7-31 70B 2

7-31 2

8-1 4

8-1 l

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