stanwood street -...

File: ISGD. B.

EVALUATE/REPAIRABOVEGROUND FUEL TANKS

I ~~~~~~~EJIELSON AFB, ALASKAE-6 FUELS COMIPLEX

I ~~~~~~~FINAL TECHINICAL APPENDIX

Defense Fuel Office - AlaskaElmendorf AFB

Anchorage, Alaska

Defense Fuel Supply CenterProject No. FBK-91-1

Under Contract to

Northern Division, Naval FacilitiesEngineering Command

Philadelphia, PA

Contract N62472-90-C- 1022EEI Project 91-1308

Submitted: February, 1992

I ~~~~~~~~~~SUBMJ'rrED BY:Stephen S. Brooks, P.E.ENTERPRISE ENGINEERING, INC.S ~ ~~~~~~~~~~~~~21 Stanwood StreetBrunswick, ME 04011(207) 729-1621

This DOCUMENT CONTAINS VALUABLEHISTORICAL. INFORMATION AND MUSTBE KEPT PERMANENTLY AVAILABLE

PER API-653 REQUIREMENTS.

ENTERPRISE ENGINEERLNG INC.Brnmswick ME 2D7.729-1821

I~~~~YOI~~~~~~~~~~~~~IMf f AI~ ~ ~ ~~~~~m~w6gf

I~~~~~~~~~~ nammvI~ ~ ~ ~~~~NGNEIG N

CONTENTS

TANK INSPECTION SUMMARY.................................. TAB A

I ~~~~~Miscellaneous Field Data

I ~~~PROGRESS REPORTS......................................... TAB B

Miscellaneous CorrespondenceI ~~~~~Appendix A - January 1991

I ~ ~STRUCTUR4 ALL ANALYSIS.....................A

I ~~~~~Shell Plumbness......................................... Page 1Shell Settlement.......................................... Page 24Edge Settlement.......................ae2Hoop Stress .......................................... Page 41Dead Load........................aeSnow Load........................Page 49I ~~~~~Wind Load........................Page 549Seismic.. . . .. . . .. . . .. . . .. . . .. . . .. . .Page 56

Longitudinal Stress .Page 568

WELD INSPECTION.......................................... TAB D

Visual Weld InspectionWeld Reject AuditI ~~~~Radiography Reports

QUALITY INSPECTION & TESTINtG................................ TAB E

Radiograph ProceduresCredentials

TASK ORDER SCOPE......................................... TAB F

I ~~~~Floor Repairs - Tank 38-40

S ~~/AZO2

* ~~TOC ENTEPRISET

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ENGINEERING, INC

MEETING DATE: October 17, 19913 ~~~~~PROJECT: Structural Evaluation AG Storage Tanks

PROJECT NO: NCRTHDV90-c-Cio02,CElIProject No. 9-1--1-3r-,

LOCATION: DISC-FE OfficeAlexandria, VA

ATTENDANCE: Anne McConahy - DFSC-FEFred Ma - DFSC-FE

Marshall Gore - DFSC-FMSteve Beebe - NORTHDIV-DMHenry Gorin - NORTHDIV-PM

Steve Brooks - EEI

PURPOSE OF MEETINGs The purpose of the meeting was to provide ap ~general Summary of field findings, and discuss Upcoming project

SUMM3RY,01 DISCUSBIONS

I ~1. DFSC directed NORTHDIV to prepare request to obtain designservices for repair of DFSP, Whittier, tanks. The goal is tocomplete design as soon as possible in order to allow anearly spring of 1992 construction start.2. DFSC directed NORTHDIV to prepare request to obtain designservices for repair of Eilson, APS tanks. The goal is tocomplete design as soon as possible in order to allow anearly spring of 1992 construction start.I ~3. DFSC to provide EEl with full boring logs resulting fromenvironmental boring program at DFSP, Whittier, scheduled tocommence on October 21, 1991.

DETAILED DISCUSSION - DPSP, flITTIflI ~1. EEl reported that general problems at DFSP, Whittier,resulting in the recommendation to repair the tanks include* ~~~the following:

3 ~~P.O. Box 398 21 Stanwood Street, Brunswick ,ME 04011 Tel. (207) 729-1621 FAX (207) 725-4252

Meeting minutes3October 24, 1991

a. Inadequate tank foundations have resulted in a tankshell edge settlement condition that fails criteria.b. Inadequate tank foundations to not meet seismiccriteria, putting the facility at risk. The 19643earthquake caused substantial damage on five out ofeight tanks. Repairs are known to have been made on

four tanks.

C. Exterior coating system has failed, with coating in thenear future already being programmed.

d. Problems with tanks 803 and sos were of considerableconcern, resulting in EEI recommending placing the tanksin service only to ballast against flotation.32. DFSC indicated that it is still their stated goal to providedouble tank bottoms with leak detection ability whenever-major repairs are being made. EEI agreed that both simplerepairs (to correct edge settlement condition only) and majorrepairs including double tank bottoms, are to be included inour upcoming evaluation of possible tank repairs.3. considerable discussions centered around obtaining subsurfacegeotechnical borings to support the tank repair designproject. EEI expressed a concern on providing borings atthis time due to damage that may be caused to the dikeliners, difficulty in repairs to liners during the winter,and the lack of review of pre-existing subsurface informationat the Facility. EEI suggested reviewing all available dataprior to making a determination f or the need of subsurfaceborings. NORTHDIV expressed extreme concern that inadequatesubsurface information could result in problems duringconstruction. EEI stated that we concur, and are onlyrequesting that we be given the time to evaluate availableinformation to see if it is sufficient for foundation

analysis. Subsequent to the meeting, it was determined thata current environmental assessment project at DFSP Whittierwill be providing extensive geotechnicaj and environmentalsubsurface bore hole information,- scheduled to begin the weekof October 21, 1991. It was generally agreed that the borehole location plan, if followed, may provide all informationnecessary for the project design. DFSC agreed to contact theArmy Corps of Engineers to direct them to provide bore holeinformation directly to EEI as soon as available.I4. In addition to providing tank bottom and foundation repairs,general tank repairs will be required due to tankreconstruction. General items include minor fuel piping

changes within the dikes, valve and nozzle adjustments,exterior and interior tank coatings, and installation of roofnozzles to allow future installation of tank high levelalarms.

91-1308 - 23

* ~~Meeting MinutesOctober 24, 1991

S ~~5. EEl stated that additional field information will benecessary to ccmplete the project design. NORTHDIV toauthorize current priced options for return visit to Alaskato obtain the necessary information. The current goal is tovisit the facility during early November.

* ~~6. Discussions centered around obtaining welding inspection andradiography during construction. NORTHDIV recommended thatwelding inspection and radiography be provided by theGovernment as a general construction oversite function, inlieu of allowing the contractor to provide the highlytechnical inspection and radiography. NORTHDIV stated thatpast projects having contractor radiography resulted ininadequate inspection. EEI stated that we can provide theH ~~~necessary services through our present radiography

I ~7. NORTHDIV indicated that once design is complete, they mostlikely will transfer construction administration* ~~~responsibilities to a West Coast Engineering Field Division.

8. DFSC stated that they have begun discussions with the ArmyCorps to provide the necessary construction administrationservices for the NORTHDIV design project. The concern by allwas that a transfer between NAVFAC and Army Corps wouldresult in an extensive project delay due to constructability

ko ~~review.

DETAILED DISCUSSION - DIII, ANCHORAGE

1. EEl stated that general results from the DFSP Anchorage studyindicate that it is of the lowest brittle failure riskstatus. This is based upon excellent weld inspection resultsand that the tanks are less than 3/8" wall thickness.Additionally, the tanks all have concrete ring wall* ~~~foundations.

2. EEI stated that it is our hope that we can completely removethe DFSP Anchorage facility from the brittle failure risk* ~~~list.

3. Minor general facility tank repairs will be included in ourreport. These items are general criteria deficiencies orminor maintenance oriented, items not specificallycontributing to brittle failure risk conditions.

I ~DETAILED DISCUSSION, ZESSI=b. 33W- B-OrCOMPtEX

1. DFSC indicated that they want to provide weld repairs to thethree tank already inspected, with construction commencingnext sprin4.

91-1308 - 3

Meeting minutes

October 24, 1991

2. DFSC indicated that they do not bave a schedule as yet forformal transfe, of operations to DFSC for thisfaityHoweerthey expect it to occur this winter, prior to nextspring tank reh~abilitation.

3. EEI advised that floor repairs are required to two out of thethree tanks inspected. EEI has provided a scope of workdocument outlining repair requirements for use by DFO-Alaska.Copies have also been distributed to NORTHDIV and DFSC.4. Considerable discussions centered around the weld problems at IEielson and possible methods f or additional inspection andrepair with the following items being noted:

a. Considerable rejection was found for the vertical weldsup to the 8' horizontal seam.

b. The 8' horizontal seam received iot inspection. Out ofthe films shot, rejection rate was over 90%, indicatinga definite problem with the machine made weld. As thedefects were so similar in nature, it can be expectedIthat the entire circumferential weld most likelyrequires repair.

C. Although DFSP previously requested additional radiographinspection of the 8' horizontal seam and 8' to 16'vertical seams, a decision was reached to hold of f onany additional inspection at this time. This is basedupon the conclusion that 100% weld repair will mostlikely be necessary, thus that assumption being made, noadditional radiography of this weld is necessary priorto repairs.

d. EEI stated that welds in the 8' to 16' vertical seamsand horizontal to vertical junctions at the 16' levelneeds further radiography to determine status and rejectlist.

e. EEI stated that inspection and repairs to welds abovethe 16' level most likely is not warranted. We areattempting to confirm, through hoop stress analysis, the Ineed for additional inspection and repair.

5. The scope of the DFSC requested tank repair project wouldinclude the following:

a. Repair of all defects in the vertical seams up to 8'.

b. Repair of 100% of the horizontal a' welds.

91-1308 - 4

Meeting Minutes

October 24, 1991

C. EEI to provide radiography and visual .weld inspectionservices throughout the course Of construction for thefollowing items:

1. Visual inspection of all weld preparation and rootpass weld.

ii. Radiograph inspection of all weld repairs.iii. Radiograph inspection of existing Welds in the S'to 16' vertical seams and 10% of the 16' horizontalseam. Rejected welds will be repaired by theconstruction contractor on an allowance plus unit* ~~~~~price basis.

iV. Final radiograph inspection of repairs made to the* ~~~~~welds above the 8' level.

V. Repairs to internal and exterior coating systems* ~~~~~necessitated by welding repairs.6. EEl stated that analysis of edge settlement conditions hasyet to be completed on the Eielson tanks. Some edge

settlement conditions have been noted and require furtherI ~ ~~review.* '~7. EEI suggested that as a part of the tank repair contract,coupons be taken from the tanks for Charpy-V notch testing todetermine metal ductility and transition temperatureconditions. DFSC and NORTHDIV were in concurrence as thecost is relatively minor for the overall project size.S. EEI stated that Tank 22, is of an age that is outside of thebrittle failure risk window. However, EEI suggested that acomprehensive tank repair project be programmed f or interior

item. Itappars hatthe tank has not been recoated sincethe original construction in 1967.

GENERAL DISCUSSION ITEMS

1. EEI stated that our overall approach to the brittle failurerisk problem at this time includes several issues we feel* ~~quite important:

a. Published criteria in API 650, 653 and similar sourcesis being used for base line brittle failure risk* ~~~~analysis.

I ~~~~~~~~91-1308 - 5

Meeting minutesOctober 24, 1991a

b. Many of the criteria references and pass/fail criteriaare undocumented. We believe, therefore, that it is ourobligation to attempt determining the underlyingrationale for the criteria pass/fail conditions.ISeveral examples include the reference on brittlefailure occurring below 7,000 psi hoop stress, and edgesettlement pass/fail criteria.

C. Structural strength reduction due to extensive weldproblems at Eielson AFB is also being reviewed. APIcriteria allows a 70% joint efficiency. The question,therefore, is given the present weld condition, which isconsiderably less than 70% efficient, present asignificant strength reduction, and thus, safety risk. I

2. The next formal submission required by EEI is documentationof field findings with initial back to service tank leveldeterminations. A massive amount of information collected inAlaska is currently being assessed and we hope to have ourinitial findings published in the near future.

3. As a part of our initial field findings, we will make initialrecommendations for Whittier tank repairs, with options andpricing for Government decision. However, as the generalizedapproach has been determined (tank foundation and floorbottom repairs), the general scope is sufficient forengineering fee negotiations and initial award.

4. The final brittle failure study for the DFSC Alaskafacilities will include additional- supporting documentationand final assessment of brittle failure risk.

We believe that the minutes of this meeting accurately reflect thestatements made, and that they represent the entire extend of alldiscussions. Those in attendance are encouraged to submitcorrections for revisions to these minutes if found necessary. ifno requests are made within 10 days of the date of issue of these-minutes, they will be considered accepted as written.

Submitted by:

Stephen S. Brooks, P.E.Executive Vice President

SSB/smk/AR89

Distribution: Meeting Attendees

Defense Fuel office- Alaska (Lt. 0o1. Dryer)

91-1308 -6I

am Aar aR a a Emarn~

ENGINEERING, INC

October 9, 1991.

Mr. Steve Beebe, Code 402Design ManagerNorthern DivisionNaval Facilities Engineering CommandU.S. Naval Base, Bldg. 77-LPhiladelphia, PA 19112-5094

SUBJECT: Structural Integrity Evaluation/AG Fuel TanksDefense Fuel Region - AlaskaContract 90-C-1022EEI Project No,,. 91-1308.12

* ~Dear Steve:

Two copies of the following documents are submitted for your finalrecords. Please note that most of the documents have beenpreviously submitted via facsimile, and these documents areprovided for your permanent record.1. Progress Reports #1-8. Please note that this is the firstI ~ ~issue of Progress Report #8, covering our final inspection oftwo tank interiors at Eielson APE.

2. copies of facsimile messages having project impact.3. Preliminary tank summary tables for DFSP Whittier and

Anchorage.

4. Copy of lab test for floor coatings at DFSP Whittier.

5. Scope of work to obtain tank floor weld seam repairs atI ~~~Eielson APR.

Please call if you have any questions with regard to the newI ~material.Sincee

Stephen S. Brooks, P.E.Executive Vice President

SSB/lss/A020

* ~Enclosure

Distribution:S ~DFR-A: Attn: J. Stirling Two copies of Documents

DFSC-FE: Attn: F. Ma Two copies of Documents

P.O0. Box 398, 21 Stanwood Street, Brunswick, ME 04011 TeL (207) 729-1621 FAX (207) 725.4252

ma u 0rna as a Earn IENGINEERING, IN

EVALUATE/REPAIR AG TANKS (BRITTLE FAILURE)ICONTRACT 90-C-i022

ENTERPRISE ENGINERING INC.PROJECT NO. 91-1308

PROJECT PROGRESS REPORT NO. 8I

SUBJECT: SECOND VISIT, EIELSON AFB

DATE: 10/8/91 BY: S. BROOKS

1. A return trip was made to flelson APE to inspect the interior of twoIadditional tanks inaccwrdance with DFSC rnquest and Northdiv direction. TheField effort began on Friday, Sept. 27 and was completed on Sunday.i

2. The marine chemist hired by Efl (Rod Alean), dlared both tanks safeafor entry on Friday morning.

3. Results Of surveying the interior of tanks 39 and 40 were similar toresults of the previous survey of tank 38.

4. The floor on tank 39 passed the vacuum box test, thus no weld repairsIwill be necessary. The floor on tank 40 had three suspect vacuum boxlocations and thus weld repair is reconumended prior to placing the tanks backin service.

5. Visual weld inspection found evidence of erection tab removal tearsacross all vertical welds in the First- shell course in both tanks, similar tothat found in tank 38. Repair of these defects is recommended on a longterm upgrade of the tanks.

6. Radiography of tank welds to the first horizontal shell weld foundexcessive weld defects, similar to tank 38. over 80% of the 8 ft. horizontalweld shots were rejectable due to incomplete penetration. IncompletePenetration, when extending across an entire 12 inch film, is considered as acrack in the weld. Considerable defects were also found with the first courseIvertical welds and vertical to horizontal junctions at the 8 ft. level. Rejectsincluded porosity, incomplete Penetration, incomplete fusion, and one smallCrack. Some of the defects found in the vertical/horizontal junction aboveIthe 8 ft. horizontal run off the film, indicating the need to provide additionalradiography of these seams to chase the defect. The quantity of weld rejects

P.O. Box 398, 21 Stan wood Street, Brunswick, ME 04011 TeL. (207) 729-1621 FAX (207) 725-4252

* ~PAGE 2

withdicates the need for additional radiography on the tanks. In accrdancewihDFSC request and Northdiv direction, a Proposal has been submitted toexpand the radiography Program on all 3 tanks at Eielsson.

I ~~7. The weld defects on the tanks should be repaired on a long term tankupgrade project. In the meantime, we will be further evaluating stresslevels in the tank and providing a recommended fill height f or short termtank return service.

8. The interior Columns at tank 339 are significantly out-~of-plumb and theroof framing appears to have rotated about the center column. The out-ofPlumb columns should be replumbed as a pert of the long term tank upgrade.9. At the completion of the Eteison survey, several team members visite~dI ~ ~DFSP Fairbanks at Ft. Wainwright to make a cursory inspection of tanks 315and 316. Visual inspection of tank shell found no defects of Concern withwelds, buckldes Or settlement. The tank shell thickness was found to be 7/16inches, thus brittle failure risk is of the lower level, The tanks do not havefoundationS thus shell edge settleaent may be present, but could not beconfirmed as the interior was not available. Discussion with DFSP staffindicated that the tanks experience visual movemrent due to frost action in thewinter. Although an entire brittle failure Investigation was not made, ourobservations lead us to conclude that the tank appears to be suitable forservice at the DFSC mandated 65% fil1 level.

I ~~10. As requested, the scope of work document is being prepared forcontractor direction of floo Weld repairs at Elelson APE. This should becomleedby 10/10.

11. This report wraps up all field comments. Data obtained in the field Isnow being assessed and assembled Into formats suitable for review.

I ~progrpt8/sab

thank the staff at Defense Frel Region Alaska, Eiels~on AFBS, and the fuelfarms for their underst~andinc, cooperation, hospitality and support. We all Shave become fond of the fine state of Alaska and look forward to theopportunity of continuing to support the DFSC mission here.

SUMMIARY - DFSP WHITTIER

1. The majority of EEI wo.ck at the facility is now complete, the onlyremaining item is final radiography of tank repair welds when the tankrepairs are finished.

2. In general, the tanks s urveyed at the facility vary in condition andsuitability for service. The -attached Tank Inspection Summary TableIdocuments our findings.

3. Our long range report will recommend complete tank rebuild for all Ofthe eight tanks inspected. The tanks are considered excellent candidates forlong tenm upgrade repair. Elements of the repair recommendations willinclude:

A) New concrete tin gwall foundations with seismic anchor bolting.

B) Incorporation of tank bottom secondary conaiment in thefoundation design, with leak detection.

C) New tank bottoms with sloped floor and center sumps.

D) General tank upgrade curretly required, or refulting fromrepairs, such as Improvements In tank nozles, and coatings.

4. The justification for major rebuild Is based on the following factors:

A) All tanks exhibit shell edge settlement that exceeds allowable API

B) Two tanks (803, and 805) have conditions currently that arecause for serious concern. We suggest bese tanks only be filledenough to balls against floatation with -a flooded dike.

C) The tanks do not have any foundations,thus are not protectedagainst seismic activity or further floor support washout. Due todifficulty in draining dike water, the tank base is frequentlyIsubmerged.

D) Any tank rebuild will include a tank water hydra test, whencoupled wit h other tank improvements will satisfy all APIcriteria, thus eliminating all further risks of a brittle fracture

5. Activities during the week included resolution of repair requirements.The leak4ing doubler Plate On tank 808 was successfully purged of fuel and

repaired. Final epoxy coating repairs are required prior to placing the tankbac inservice.

6. The task order contractor after much difficulty successfully purged thefuel from the leaking doubler plate in tank 805. However purging discoveredthat the weld between the doubler plate and the floor was in very badcondition. After evaluation of rewelding versus removal of the doubler plate,EEI recommended cancelling anl further repair work on this tank. This wasbased On the A-PI 653 requirement for a water hydra test after the type ofextensive repairs, plus the fact that radiography found this tank to need twoto three times the shell weld repair (10 ft. total) than any other tank at thisfacility. This tank also has a shell buckle that is probably a result of theI~~16 atqae7. The final repairs, including epoxy coating in tank 801 was inspected byEEI and the tank released for service, once the coating fully cures.8) Repairs to welds on tanks 804, 803 * and 806 continued throughout theweek with the expectation that they would be completed by Saturday.9) Upon receiving confirmation of weld repairs being completed, the EEI.radiography subcontractor will, be authorized to reshoot the repairs to confirmadequacy.

10) Upon cOmpletion of the epoxy coating, the tanks can be returned toservice. EN will be completing structural stres calculations upon returninghome and will advise as to a recommended safe operating level for each1 tank.

11) After reviewing repair, coating, fuel transfer, and cleaning scheduleswith the operating contractor, task order contractor and DFR-A, it wasconcluded that the interor InsPections of tanks 802 and 807 would not bePossible at this time. At best, the tanks could not be ready before October7, and maybe later due to the trains running on winter schedules.

U ~SUOARY - DFSP ANCHORAGE be opeeicuigElIseto

1. AUwork atthis facility hsbe opeeicuigEIisetoI ~and radiography.

2. No repairs are indicated prior to returning tank 608 back to service.A) Internal Inspection did not find any weld flaws, floor weld leaks,

or repairable floor pits.B) Radiography of shell welds did not find any rejectable welds.C) Tank 608 does not exhibit any floor edge settlement, or tank

plumbness Problems that are cause for concern.* ~3. As the tanks at DFSP Anchorage have shell plate thickness of wellunder 1/2", and generally meet API 653 criteria for suitability for service,

PAG E 4U

EEI recommendations most likely will include taking the tanks off fuel heightrestriction due to brittle failure risk. Review of all data and results of theCharpy V notch testing are required before making a final determination.

4 . Tank 608 does not meet seismic criteria and should be repaired to meetcriteria. Modifieatdon of the present ringwall foundation and addition ofanchor bolting will be evaluated as a part of our study effort.

5 . Tank 609 should be internally inspected as staff at the facility report avery sharp edge settlement condition and floor wrinkle. This condition, ifsevere, should be repaired to maintain tank integrity.

SUMMARY - EIELSON APE E-6 COMPLEX

1 . Field survey of the entire complex, plus internal EEI and radiographicinspection of tank 38 was completed during the week.2 . Vacuum box testing of the tank 38 floor found 14 suspect locations ofpossible leak potential. Thus repairs are required prior to placing the tankin service.

3. Radiography of the welds on tank 38 found very poor welding with over50% rejection. This is cause for extreme alarm.* It appears that whenwelding the tank, the welder did not back grind the first weld, prior toIwelding on the other side of the shell. Per API code, this level of rejectionin a new tank would require 100% radiography of the rejected welds.

4. As a result of EEL vacuum box test and radiographic findings, approvalwas receved to completely Inspect the Interior of two more tanks currentlyempty at the facilty. The remaining three tanks of the same vintage as tank38, plus the newer tank 22, are currently in use at full capadity. Survey ofIthe two additional tanks Is starting today and will be completed by Macday.Findings will be reported to DFR-A prior to the EEI team departure fromAlaska next week.

5. Not withstanding findings an tank 38, the entire fuel complex appearsin excellent condition and has been well maintained. Deficiencie of concerninclude larck of foundations for tanks 35 to 40, lack of seismic protection onall tanks. and inadequate dl~dag systems.

UPCOMING EFFORTS

1. After returning to Maine, the EEL team will be reviewing all findings,performing initial calculations and further documenting field efforts.2. The initial report issued,* as soon as possible, will includerecommendations on initial fill height for all tanks, plus any other Initialaction that can be taken to minimize brittle fracture failure risk.

* ~~3. The final report will include more comprehensive analysis of data, andlong term facility recommendatians including estdmated costs to address allbrittle failure risk factor-. with the goal of eflndnating further concerns.

U~~port/s

ENGINEER~ING, IN~CS

EVALUATE/nAnEA AG TANKS (BRITTLE FAILURE)ICONTRACT 90-C-1022

MATERPRISE ENGINEERING INC.IPROJECT NO. 91-1308

PROJECT PROGRESS REPORT NO. 7 (FINAL FIELD REPORT)

PERIOD ENDING: 9/27/91I


SUMMIARY OF ACTIVITIES

1. Items acromplished this week included completing all survey work atIDFSP Anchorage, several return tripe to DFSP Whittier to review task ordercontractor's work, and a return trip to Naelson APE to inspect two additionaltank interiors.

2. Assmbly and analysis ot collected data is well underway, resulting inTank Inspection Summary table for each fadility. Analysis, Includingcalculations of conditions and maximum recommended tank fill heights willIcontinue.

3. Authorization was received from NORTHDIV NAVFAC to inspect twoadditional tank Interiors at NEilson AFE. Previously negotiated Priced Optionswere used as the mechanism of award.

4. Task order contractor tank repair work continued at DFSP Whittier,IPrimarily concentrating on unforeseen repairs to leaking tank doubler plates.

5. Due to a variety of conditions, two tanks at DFSP Whittier will notreceive internal inspections during this Phase of the work. This is notexpected to affect the results and conclusions for this facility.

6. Two members of the EEI tank Inspection team, having been in Alaskafor 4-1/2 weeks, are returning bouts this weekend. The remainder of theteam is completing work at EielSon APE, and returning home late next week.

7. All in all, Enterprise Engineering team members consider the entireinspection tour a resounding succes, and have accmplished the Projectgoals. Unforeseen conditions, difficult weather, and schedule setbacks wereall addressed in the normal course of the day. I would like to specially

P.O0. Box 398, 21 Stanwood Street, Brunswick, ME 04011 Tel. (207) 729-1621 FAX (207) 725-4252

ENGINEERING, INC

EVALUATE/REPAIR AG TANKS (BRITTLE FAILURE)CONTRACT 90-C-1022

ENTERPRISE ENGINEERING INC.PROJECT NO. 91-1308

PROJECT: PROGRESS REPORT NO. 6

SUBJECT: SITE VISIT, PROGRESS MEETING, DFSP WHITTIER

MEETING DATE: 9/23/91


ATTENDEES:

S. Brooks EEIH. Webber EEI3. Stirling DFR-AB. Ketcherside 05Ka ~~~W. Kroll Tecom (operating contractor)3. Quam Rockfocrd Carp. (task order contractor)

1. A special visit was made to DFSP Whittier to inspect repair work by thetask order contractor, and to discuss availability of the last two tanks (802,807).

2 * The contractor has completed tank weld repairs on tanks 801 and 808.The radiographer reshot all welding and no further weld defect. were found.I ~Thus all seam weld rework in these tanks is complete.3. The task ardor contractor received a contract mod to repair theleaking/fuel contaminated doubler plates on tank 808 and 805. The contractorwas setting up In 808 and beginning the purge of the fuel from the blindspace. The doubler was inspected and 4 cracked welds were evident fromfuel weepage.

4. All work.-associated with repairing weld defects was placed on hold byTecom/D FR-A until after the doubler plates were repaired.

5. EKE inspected sandblasted shell/floor seams in tanks 808, and 805. Thecoating applied in tank 801 was also inspected.

6. Verbal results were obtained from the Iundustrial Hygienist with regardto lead in air testing conducted in tanks 803, 804, and 806. Tanks 806 and

P.O. Box 398, 21 Stanwood Street, Brunswick ME 04011 TeL (207) 729-1621 FAX (207) 725-4252

803 were clean, and no further protection is required. Tank 804 did notpass. Entry must be made using a half mask cartridge respirator.No written report was received yet.

7. EEL, Tecom and Rockford staff were appraised of the tank 804 problem.8. EEI inspected sandblastd shell/floor weld seam in tanks 803 and 806.An additional pit was found in tank 803, near the floor/shell seam. Theunusual butt weld in the floor of tank 803 was further inspected, now thatthe coating was removed. No specific weld defects were discovered, howeverthis weld is in the critical zone and thus is not allowable by caitezia.9. Work completed to date, plus possible completion schedule was reviewedwith the task; order contractor and operating contractor, with the followingbeing possible:

A) 801 complete, coating curing, ready for fuel by Wed, but need towait until tank 808 ready so as to not get tank cleaning contractor downtwice.

B) 808 doubler repairs: In progress, going slow, probably done byend of Tues.

C) 808 coating: Possible Wed, but no other coating work ready,would be extra for coating contractor.

D) If 808 coated Wed, not ready for fuel until the weekend, thusIwould require tank cleaning contractor to come in on Sunday, to close uptank. Thus fuel transfer could start by Monday, 9/30.E) Per Tecom, it will take 2 days to transfer to 808, and 1-1/2 dayto transfer to 801. Thus If tranfe starts Monday, tanks will not be

available. to clean until Wed 10/2, or Thurs 10/3, assuming marine chemist is

F) Trains go on winter schedule next week, very limited access tofacility for vehicles and equipment. This would make scheduling moredifficult, one day jobs turn out to take 3 to 4 days.

G) EEI scheduled to depart Alaska this weekend. Several members3can stay until Wed 10/2 at latest, due to prior cammitments at home.10) It very rapidly became apparent that time had rim out for internalinspection of the last two tanks. The magnitude of repairs, plus roughweather was the major contributor to delay. Thia entire concept of rolling twotanks over during the initial survey period may also not have been realistic.

11) EEI stated that all tanks surveyed to date have enough deficiencies towarrant full bottom rebuild Prior to placing in full height service, thus theconclusion can be drawn that the two tanks remaining should also be rebuilt.However no tank (except perhaps 803) has enough problems to consider notplacing back in reduced height service at this time. Tank 802 and 807 havebeen fully surveyed from the outside, and no urusual conditions were found.5

I ~ ~12) it was agreed by all that fixing the Present tanks was enough of achallenge for now, and no further investigation of tank 802 and 807 wasrealistic, given the time of year.

13) Jim Stirling agreed to brief Lt. Col. Dryer to gain concurrence.

I~~port/s

ma ama aR la wrn

ENGINEERING. INC


ENTERPRISE ENGINEERING INC.IPROJECT NO. 91-1308

PROJECT PROGRESS REPORT NO. 5PERIOD ENDING: 9/21/91


1. Inspection of the six initial tanks was completed at Whittier on Monday,Iand the team demobilized and traveled to Anchorage for a brief rest.2. Weather at Whittier continue to be rainy while on site. Alter leaving,3the weather was fine the remainder of the week,.3. The radlographer (EEI subcontractor) continued to work on the tan ksall week. All tank initial radiography was completed by Wednesday. As weldUrepairs were required, the radiogxaphers remained on site until Friday, tore-shoot repairs to tanks 808 and 801.

4. The amount of repair welding far exceeds expectations, and resulted inmore radiography than was estimated for reshooting. The radiographers Werealso required to remain on sits to reshoot tank 801 and 808 under delay time(standby) conditions. At this time it is not known If the extra work willIresult in additional cost. We Wil advise if a priced option needs to beexercised.

5. As of Friday, the task order contractor had completed all initial repairsto tank 801 and 808, and cut coupons from the shells of all 6 tanks. Patcheswere installed in 5 out of the 6 tanks.

6. On Thursday, a crack was discovered in the doubler plate of tank 808.JP-4 fuel was found behind the plate. On Friday, 25 cracks were discoveredin the doubler plate on tank 805, also finding JP-4 behind the plate. AllIwork was stopped in tank 805 until the leaking doubler plate can be fixed.

P.O. Box 398, 21 Stanwood Street, Brunswick, ME 04011 Tel. (207) 729-1621 FAX (207) 725-4252

7 . The task order contractor received direction to repair the doubler platein both tanks, with 808 being a priority.

9g. Epoxy recoat work was completed on tank 801 on Friday. This tankcan be returned to Service as soon as the coating cures (by Tuesdaypossibly), and receive JP-4 fuel from tankc 802;-

10. Epoxy recoat work on tank 808 will commence after doubler plate weldrepairs. However 808 will not be ready f or returning to service until late inthe eekthus delaying tranter of gasoline out of tank 807.

11. On Saturday, the task order contractor completed coupon work on DFSPAnchorage tank. Tank 608 had been certified gas free by a marine chemistearlier in the week.

12. RadIography of DFSP Anchorage tanks began on Saturday, after task

order coupon work was completed, and will be completed Sunday. The films13. The EKE tank team traveled to Elelson APE and completed all workrequired at this facility. See progres reportNo. 4 for a summary of activity and findings.

I ~~14. On Sunday, 9/22 EEU will travel back to Anchorage and complete allwork on DFSP Anchorage. Following DFSP Anchorage work, the team willP ~~travel to DFSP Whittier to ptca up loose ends, and begin work on the finaltwo tanks If they are available.

15. At this time, the schedule for DFSP Whittier fuel transfer, tankcleanilng and gas free certLying Is unkntown. A partial EKE teem will travel toWhittier on Monday 9/22 to confirm facility status and schedule.

16. PrelimInary results of to data DFSP Whittier Inspection is attached.

I ~progrpt5/ssb

ENGINEERING, INC

EVALUATE/REPAR AG TANKS (BRITTLE FAILURE)CONTRACT 90-C-1022

ENTERPRISE ENGINEERING INC.IPROJECT NO. 91-1308

PROJECT PROGRESS REPORT NO. 4USUBJECT: PRELIMINARY, UEIESON AFE E-6 FUELS COMPLEX3

PERIOD ENDING: 9/21/91


1. The tank Inspection team completed all work at Unieson APE during the

2. E-6 fuels Complex wonslsta of 7 tanks, No. 35 to 40a(74 ft. dia.), and No. 22 (125 ft. dia.) Tank 38 was open and gas, free andavailable for interior Inspection. Two mure tanks were empty, but not -. %open/cartifjed gas free. These two tanks were closed up to allow complatiocof the exterior tank coating work. During the week of inspection, itappeared that the painting wontractor oompleted all of his work.

3. Work completed by EKE included the following.a) Tank 38 was inspected by the marine chemist and certfied gasIfrue/benzene free/safe for occupancy.b) AlU tanks were surveyed for vertical shells. Tank 22 was very3vertical. The other tanks exhibited moderate out of verticality from base totop, and between shell welds. Calculations will be completed to determinecompliance.

c) The base ring elevation was surveyed for all tanks. They allappear level, with no differential settlement of concern. Although tanks 35 to40 do not have concrete foundations, the material below the floor is wellIcompacted.

P.OU. Box 398, 21 Stan wood Street, Brunswick ME 04011 Tot. (207) 729-1621 FAX (207) 725-4252

I ~PAGE 2

d) The interior of tenk 38 received a full integrity inspection, withthe following findings:

1) UT testing of floor thickness found no thinning.2)The vacuum boic testing of all floor seams found 14 suspectareas (under a 123" Hg vacuum, bubbling of soap solution wasobserved).

3)Visual inspection of shell welds to 8 ft. found evidence of poorlocaionsweremarkd fr grnd ot reeld.Thelocations allexhibited sharp tearing ofthe shell base metal, and thsare a

possible starting point far brittle failure.4) The interior coating system was in excellent condition, withonly two small ar~as of topcoat peeling.I ~~~~~5) Moderate edge settlement was found, calculations will becompleted to determine if a problem exists.6)Very little floor bulging (oillanning) was found.

e) The tank foundation survey found moderate washout of floo baseareas for all tanks 35 to 40. Repair is indicated. Tank 22 has a reinforcedconcrete ring wall, in excellent condition.

f) Tank shell thickness survey found 7/160 let course plates for tanks35 to 40. Thus these tanks, built in 1954, are of the lowest brittle failurerisk (less than l/2- thick)

g) The shell on tank 22 was 7/80 thick. However this tank waserected In 1968, and thus may not be made of brittle suspect steel.as this Is a thick steel tank.

I ~~~. Tak22 nesexterior coating. Itappears that the coating is oforiginal vintage, and thus is suspect of containing lead.I~~. Te ofo tank 22 shows evidence of extensive repair. Several

sectonswer cutoutandrewelded. Staff reported hearing that shortly aftererection, the floating roof hung up, requiring extensive work. No verily5 ~~records were located.

* e) ~~~~~ENTERPRIOSE.

5. An exit meeting was held with Lt. Cal. Boyce (CE-Ops), Capt. HeckerS(Fuels), plus additional support staff. Items discussed included:

a) EEI advised that tank 38 vacuum box findings indicate that weldIrepairs should be dane before refilling the tank. Shell weld repairs areoptional, as they are a brittle failure risk factor, not a tank hydraulicintegrity concern.

b) No specific conclusion can be drawn as to the condition of the othertank floors.3

c) Fuel tank records indicate that the fuel temperature drops to -35deg F for over a month each winter. Thus some frost heaving may beOccurring below the tank floors, and possibly contributing to floor weldI

d) AF staff were advised as to general procedures for floor weldrepairs. As the age of the coating can not be determined, removal ofcoatings for weld repair Is mandatory and should be completed assuming thecoating contains lead.3

e) EEI was requested by Base Environmental to take a floo coatingsample for lead testing by the AP. The sample was taken and delivered tothe Fuels office.

f) AF staff were advised to request report documents of EEI workthrough Defense Fuel Region Alaska, Lt.CO1. Robert Dryer.

6) In general, the tanks at the E-6 complex appear in excellent condition,and have been well maintained by the Air Fores.

7) The only remaining III work at felson APE is to complete theradiograph inspection of shell welds on tank 38. This will occur during theweek of September 23. Findings, and need for additional weld repair, iffound, will be brought to the attention of AP staff.

progrpt4/ssbI

mawUm 7w an a f mow--- - m wu------ U UN-- -- m_I . ~~~~~~~~~~~~~ENGINEERING, INC


EN4TERPRISE ENGINEERING INC.PROJECT NO. 91-1308

PROJECT PROGRESS REPORT NO. 3I ~~PERIOD ENDING: 9/14/92.6

DATE: 9/15/91 BY: S. BROOKS .4I ~ ~1. The entire tank team arrived in Whittier on 9/8, and began work ontanks on 9/9.

2. Weather throughout week was heavy rain with high winds due to severalsuccessive cold fronts Passing through. Only one day (Thursday) was sunnybetween weather fronts. Survey work Progressed but was hampered by theweather.

3. Only six tanks are available for inspection, rather than the 7 tanksP ~~expected. AU six tanks were certified gas/benazene free by a marine chemist.4. EEI team worked all week, including Saturday, and completed tankinspections on tanks 801, 803, SW8, and 804. At this time we expect tocontinue working Sunday and Monday to complete tanks 805 and 806.5 * The radlographer (ElI subcontractor) began work Monday andcompletad work On tanks 801 * 808, 803, and 8SM. They eqxpet to continueworking until done with tanks 804 and 806.6 EEI findings so far are not serious, with the possible exception of theedge settlement and floor repairs found on tank 803, However a considerableamount of welds requiring repair have been found on all tanks.

7. It was agreed that tank 808 will go back to service when done forgasoline, now in tank 807. JP-4 in tank 802 will go to tank 801.

8. Visual inspection and radiographs Of welding has found minor defectsand some aracldng that will require repairs under task orders. Althoughconsiderable repairs are required, they are not of a serious nature.I ~9. The task order welding contractor arrived late on Friday and proceededto cut floor coupons, finishing on Saturday. After cutting coupons, a marineS ~chemist issued tank hot work permits.

I ~~P.O. Box 398, 21 Stanwood Street, Brunswick, ME 04011 TeL (207) 729-1821 FAX (207) 725-42,52

I

10. The task order pair ting subcontractor arrived late Thursday but could Snot begin work until Satu cday due to equipment problems.

11. Coating samples of uach tank were analyzed far lead. Tanks with 1984vintage epoxy coating came in under 5000 ppm. Tanks with 1970 & 1974coatings (803, 804, 806) came in over allowable levels (from 27,000 to36,0OO0ppm). The task ord~er painting subcontractor was directed to wet blastthe coatings in these tanks.

12. Due to the high lead tests in several tanks, these tanks cannot befurther worked on (once sandblasted) by EEI or the task order contractoruntil after lead in air samples are taken and results received. DFR-Aobtained emergency authorization and an Industrial Hygienist was obtainedthrough Tecom. The hygienist is expected on Wednesday, 9/18. Test resultsI'nay not be available until 9/20, significantly affecting work schedules forthree tanks.

13. Floor coupon results were very good, limited underside corrosion wasfound, no evidence of product was found between the two tank floors.314. Shell coupons were started on Saturday, only shell patches were cutout. The weather was not suitable for welding outside. The welders are notworking on Sunday.

15. On Wednesday, -a marine chemist hired by ER! tested tank no. 38 atElelson APE and issued a tank safe for entry permit.

16. EEI presently planning on going to Elelson APE during week of 9/16 fortank Inspections. Anchorage tanks will be inspected about 9/23, prIor toreturning to Whittier. Schedule may change due to all the problems atWhittier.

17. In summary, work at Whittier for EEI and Task order contractors isbehind due to weather, late start by task order contractors, and lead InIcoating problems. Tank return to service schedule and testing of final twotanks cannot be determined Yet, primarily due to restricted acces to leadcontaminated tanks.

18. Tank 806, inspected Sunday, has worst coating of all tanks, and manyfloor pits requiring repair. Some pits over 75% of floor plate depth.19. Tank 805, also inspected, coating topcoat nearly gone. Primer looksIgood. No floor pits found. Shell buckles are at doubler plate, probably dueto 1964 earthquake. Also found buckles at manhole reinforcing plates.Iprogrpt3/ssb

ENGINEERING, INC

I ~ ~~~EVALUATE/REPAIR AG TANKS (BRITTLE FAILURE)CONTRACT 90-C-1022

ENTERPRISE ENGINEERING INC.PROJECT NO. 91-1308

PROJECT PROGRESS REPORT NO. 2

5 ~PERIOD ENDING: 9/8/91

DATE: 9/15/91 BY: S. BROOKS3 ~~1. As expected, all outside survey of tank base rings, -tank verticality,and tank shell thickness for tanks at DFSP Whittier and Anchorage wasCompleted by Saturday, 9/7.

2. Weather throughout the week was light dritle to heavy rain. NotPredicted to clear for three or more days.P~ ~3. Last four team members arrived in Anchorage on 9/7. Going to Whittier9/8.

4. Per DFR-A and DFSP staff, only 6 out of B tanks will be available atWhittier beginning 9/8. No rom at facility to empty last 2 tanks. Must betransferred to One Of open tanks after all inspection and repair work. Thiswill Probably cut initial visit to Whittier short, and winl require a 2nd visitlater in month when final two tanks are dlean and gas free.5. Per tank cleaning task order contractor, expects to work all weekend tohave all 6 tanks dlean. marine chemist expected to start tank certflcation onI ~Monday morning, 9/8.

6. As of 9/6, no task order contracts awarded for structural tankcontractors at Whittier or Anchorage. It is possible that award may be madeon 9/8. If conftrator can Mobilize far Whittier right away, no schedule3 ~Problems will result. DFR-A expediting task orders and are guardedlyoptimistic.

7. EEU received contract mod exercisIng interior inspection of one EesnI ~AFB tank. As DFSC does not have an operating contractor assigned toEielson AFB fuel complex, there is no method for DFR-A to have a marinechemist certify tank gas free. Accordingly EEI was directed by Northdiv toObtain the marine chemist under A/B contract and submit a claim forequitable adjustment. DFR-A and DFSC all aware of need for inspection andS ~A/E direction.

P.O. Box 398, 21 Stanwood Street Brunswick MlE 04011 Tel. (207) 729-1621 FAX (207) 725-4252

8. EEI tentatively arranged for marine chemist from SeattleSWashington to provide tank gas free certificate. This will be the samechemist who is certifying tanks at Whittier. All four marine chemistsIproviding inspection in Alaska are based in Seattle. Details to be confirmedon 9/8.I

9. Site visit schedule will be confirmed in a day or two, may go toFairbanks Eielson next as cold weather is setting in.

10. While at Whittier, contact EKl through Guard office 9007-472-2372.1

progrpt2/ssbI

ENGINEERING, INC

EVALUATE/REPAIR AG TANKS (BRITTLE FAILURE)I ~ ~~~~~~CONTRACT 90-C-1022

ENTERPRISE ENGINEERING INC.5 ~~~~~~~PROJECT NO. 91-1308

5 ~PROJECT PROGRESS REPORT NO. 1

PERIOD ENDING: 9/5/91 41. A project notice to proceed wan received on August 22, 1991.2. Project mobilization, arrangements for field trip, and the Task OrderSpediflcation were started at once and completed shortly.5 ~3. An Initial 4 person Inspection team traveld to Anchorage on August27th, and began work on August 28th, Including obtaining local supplies, anda meeting withP ~DFR-A. Later traveled to Whittier.

4. Began work at Whittier on August 29th, and continued to work throughthe weekend.

I ~5. Initial work completed includes tank base ring and out of round survey,UT of tank shells, and tank shell map takeoff. Other work included assistingoperating contractor in task order contracts.

6. Travelled to Anchorage on Sept 2nd.

7. Outside survey of Anchorage tanks began on Sept. 3rd.8. Additional work completed during week included additional meetings with3 ~DFR-A, obtaining rental equipment, and further mobilization for full team.9. Remaining 4 team members enroute to Anchorage on Sept. 7th. WMltravel to Whittier on Sept. 8th, for start of internal inspection on Sept. 9th.10. Radiography of Whittier tanks to begin on Sept. 7th.

I ~PROGRPTl/ssb

P.O. Box 398, 21 Stanwood Streeg, Brunswick. ME 04011 TeL (207) 729-1621 FAX (207) 725-4252

FAX TRANSMITTALU

JENTERPRISE ENGINEERING INC. PROJ NO. 91-1308.121 STANWOOD ST DATE 26-Sep-91BRUNSWICK ME 04011 iME -6:06 AKTIME(207) 729-1621 FAX 207 ZL 12

To: From:I

STEVE BROOKSDEFENSE FUEL REGION - ALASKASujcELMENDORF AFB SbeANCHORAGE AK BRITLE FAJLURESTU DY

DFSC AG TANKS DfR-ALASKAAMn: J. S'TRUNG/J.WALT? CONTRACT 90-C-1022U

Message 3Late yesterday afternoon I had a teloon withJerry Quamn ofRoddord Corp with regardto doubler plate repairs on tank 805 at Whittier. The tollowing summarizes current status:

1. The cotamnor has been purging doubler p-t all day.2. The floor/doubler plate weld is highly petlorased. as evidenced by pinholeleaks of fuel when under pressure. Between 30% and 50% of this weld is bad, maybe more.I3. Waft Kol on nfirmed conditio and expressed wncemn over cmt to repair entire weld4. Jerry was not sume if he evn could cwmpietsly purge the doubler spain

My concittioWrecwmendations

1. The amount of bad weld indicates complete weld repair around tank circumnferenceor complete removal of doubler plate.

2. Remiov~alfdoubler plate would requireanwinteriorfilhetweld atfloor/shelljuntion.

3. Per API 653. sedtion 7.9 and'10.3, this magnitude ofweld repair would require aful tank water hydro prior to placing the tank back in seric.3

4. This tank also has the most shell weld repair required. nearly lattotal. plus hasthe shell buckle caused bythe 1964 earthquake.3

5. Other than weld and doubler dellects we have no reason to believe this tank is a leaker.

6. 1 recommed no further repair watt is undentaken on this tank at this time as major repair3in the future is warranted.

7. As tank is not a suspect leaker, but has major deffect I suggest only placing enoughfuel in tank to ballast against floatation with a flooded dike. This would be about lofIt of fuel.elease tax cop af this fax to DFSC and NORTHDIV, attn S. Beebe, fax 215-897-5017

No: of pages (including transmittal): IL -el

* ~~~FAX TRANSMITTAL

S ~~ENTERPRISE ENGINEERING INC. PROJ NO. 91-1308.121 STANWOOD ST DATE 15sprBRUNSWICK ME 04011TIE112AIM

(207) 729-1621 FAX 207-725-4252

To: Frm:

DEFENSE FUEL REGION - ALASKA Subject SEEBOKELMENDORF AFB tu.,.E9co~ANCHORAGE AK

IAttn: LT. COL DRYERIJ. STERUING/ J. WALTYFax No: 907-753-051 7

I~ ~egae ATTACHED ARE DOCUMENTS:

PROGRESS REPORT NO. 3 WEEK ENDING 9/14REVIEW & PASS ON TO DFSC WITH COMMENTS.

INFO ON LEAD IN COATINGS. AND INFO ON INDUSTRIAL HYGIENIST.

I U~~~LST OF WELD REPASRS AS DETERMINED AND WRrrrEN Up So FARLPLEASE NOTE THAT PIT REPAIR FOR TANK 804. NOT ON LIST YET. WILL. EXCEEDBID QUANTITY. HOWEVER SOME OTH ER WORK PROBABLY LESS.YOU MAY WANT TO PARTICIPATE IN DISCUSSIONS ON HOW FAR To REPAIRL

TANK 806. INSPECTED SUNDAY. HAS MORE FLOOR PITS REQUIRING REPAIR,THAN ALL OTHER TANKS COMBINED.

WE ARE PLANNING ON PUWLNG OUT ON MONDAY. AND GOING TOANCHORAGE FOR A REST BEFORE GOING TO FAIRBANKS.

HAS TASK ORDER FOR DFSP ANCHORAGE BEEN AWARDED?3 ~~~IS TANK CERflFIED GAS FREE YET?

SCHEDULE GOING TO HELL FOR ALL PARTIES. WiLL HAVE TO EVALUATE ABILITYTO GET INSIDE 802 AND 807. MAY NOT BE ABLE TO DOALL WORK SCH ASSANDBLASTINGI ~ ~~AND COUPON CLUTflNQ THIS MAY NOT BE ALL THAT BAD HOWEVERSANDBLAST'ER FINISHED 808, IN 801 NOW. NO GRIT CLEANED UP YET IN EITHER TANK

EEI NOW IN LAST TANK (805). COATING SURE HAS LIFTED. BUCKLE IN SHELL PROBABLYDUE TO 1964 EARTHQUAKE. ALSO FOUND BlUCKLES AT MANHOLE REINFORCING PLATES.I D~~~FSP STAFF HAS BEEN GREAT! WILL BE IN WHITTIER AT LEAST MONDAY AM

S ~~~No: of pages (including transmittal): ____

ENGINEERING, INCMEETING MINUTES July 3.19911

(Revised 07/22/9 1)MEETING DATE: June 27, 1991

PROJECT: Alaska Projects (summary)UTank Structural Integrity EvaluationNORTHDIV-NAVFAC (for DFSC)Contract 90-C-1022I

PROJECT NO: 90-0113.00

ATTENDANCE: Anne NcConahy, DFSC-FEHenry Gorin, NORTHDIV - PMJoseph Pisarek, NORTHDIV - PMSteve Brooks, SEE

PURPOSE OF MEETING: To summarize overall scope issues and workitems required for brittle failure riskUassessments at Alaska facilities.

1* The following facilities are covered by this report:a.* DFSP Anchorage, AK

b. DFSP Whittier, AK

C. DFSP Fairbanks, AKI

t) ~d. DFSP, Fairbanks - Eielson AFB, 5-6 and 5-11 FuelsComplex

2.. For specific discussion on tanks at each facility refer tothe separate Field Trip/Meeting Reports for each projectsi to.I

SUMMARY/CONCLUSIONS

1. Three facilities within DFR-A territory, and one possiblefuture DFR-A facility-were visited during the week of June24, 1991. Representatives of OFSC-FE, NORTHDIV, DFR-A, EEl,Iand individual operating contractors participated in overallsite walk-throughs and discussions to determine appropriatecourse of action appropriate for each individual site.

2. The week resulted in agreement with regard to tankIavailability and individual testing required for each tankincluded in the project. Further direction is required bySDFSC-FE as to the need for brittle failure risk assessmentsat DFSP Fairbanks, and Elelson AFB, E-6 Complex. However,the appropriate scope for each site has been defined.I

P.O. Box 398, 21 Stanwood Street Bruinsws*k ME 04011 TeL (207) 729-1621 FAX (207) 725-4252

EMeeting minutes'uly 3, 1991 (Rev. 07/22/91)

*3. It was agreed that the Government will participate andsupport the overall pr~ject effort utilizing AGO task ordersissued to the Operatinq Contractor for Alaska for thefollowing items:

a. Tank cleaning and gas-freeing.

U ~~b. Tank structural repair contractor for cutting of Charpycoupons, miscellaneous tank welding support, and ifnecessary, emergency repairs to minor tank deficienciesfound.

4. The task order Scope ci' Work for each tank will be preparedby EEI and submitted to the Government for their use.

6. Due to weather conditions encountered at the variousfacilities, the field effort should begin on August 19, butI ~ ~no later than August 26. A contract award is required nolater than three weeks prior to beginning the field effort inorder to allow for mobilization and scheduling of the projectI ~ ~teams. Delay of the contract award will prevent field workf romn starting this fall, delaying the entire project untilnext summer.

* . In order for DFR-A to have tanks empty and gas free for fieldP ~~Inspection, we suggest issuing the AWO task order forcleaning as soon as possible, in order to obtain a contractorko ~ to commit staff. Actual cleaning should be conducted theweek prior to inspection.7. No work is required at OFSP Fairbanks (Tanks 315 and 316).

Work required for OFSP Falrbanks/Eielson AFB E-6 Complex.

ISPECIFIC SCOPE ITE4S REQUIREDDue to site specific conditions the Scope of Work for each* facility varies somewhat depending upon Present tank condition,* tank history and tank availability. The following sunmmarizes thecategories of work required for each facility/ tank. Refer to theIattached discussion of tank testing procedures for furtherdiscussion on individual procedures.

EGENERAL TANK INVESTIGATIONHistorical research will be conducted through discussions withoperating staff, review of available drawings and records found at* each site and in the offices of OFR-A. Items of concern are*original tank construction features and modifications/repairs tthe tanks over the years.

90-0113.00 '- 2.

Meeting Minutestuly 3, 1991 (Rev. 07/22/SI)

EXTERIOR TANK SURVEY/EVALUATION

1. All tanks defined within the Scope of Work at each facilityIwill receive the same base-line level of field investigationand evaluation.

2. Tank Base ring level, alignment and tank out-of-round survey:Electronic survey equipment (EDM) will be utilized to obtainthe necessary data. Survey findings will be reduced in thefield for tanks exhibiting unusual problems to determine ifIadditional evaluation is necessary.

3. Exterior weld/shell gouge survey: Weld inspection will beIconducted of the tank horizontal and vertical welds as wellas tank nozzles, patch plates, and evidence of erection tabs.Gouges affecting brittle failure risk will be located.

4. Tank Structural/Foundation Survey: Foundations, when found,will be evaluated for structural integrity. The tank shellwill be surveyed for wrinkles, bulges, nozzles, patch platesUand other questionable evidence.

5. Tank Shell Plate Thickness: Ultrasonic equipment will beIutank.e to verify the thickness of each shell course up the

OPEN/GAS-FREE TANKS

1. The following tanks at each facility will be opened, cleanedand gas-freed by an ACO task order contractor:Ia. DFSP Whittier: All tanks In study (eight total).

b. DFSP Anchorage: Tank 6OB only.

R) C. DFSP Fairbanks: No work.

R) d. E-6 Complex, Elelson AFS: To be determined, possiblyone tank (priced option for interior inspection).

2. Brittle failure investigation and evaluation for all opentank interior includes the following items:3a. Detailed weld Inspection, tank base ring and shell welds

up to 8-10 feet above the floor. When condition issuspect, magnetic particle testing will be provided.All accessible shell-to-f loor welds will be magneticIparticle testing as these joints can not beradiographed. Questionable shell-floor welds will befurther evaluated with vacuum box testing.S

Meeting Minutes'uly 3, 1991 (Rev. 07/2:2/91)

b. Critical zone :orrosian, gouge and Pit depth survey:The first Course of tank shell (8 feet) and the first 4feet of the tank floor will be closely surveyed for thepresence of coi-rosion activity, gouging and pits.

C. Radiography: All horizontal and vertical welds in thetank shell up to approximately io feet above the floorwill be radiographed and films developed on-site. Weldquality will immediately be interpreted and defectsbrought to the Government's attention if of a majorconcern.

NOTE: It Is possible to radiograph less weldsI ~ ~~~~~~to determine general weld quality..Radiography can be conducted using apriced option mechanism (per ft. basis).3 ~~~~~~~Please advise as to method desired forcontract.3 3. Shell Coupons: 12-inch diameter coupons will be removed fromthe tank shell by the ACO task order contractor. New shellplates will be immediately provided under surveillance fromEEl weld inspector. The new welds will be radlographed for

quality. The coupons will be shipped by EEI to aa ~metallurgist for machining and Charpy V-notch analysis.IW'4. Tank Weld Repair: Visual, magnetic flux and radiography mayfind welds or pits requiring immediate action prior toplacing the tank back in service. The following procedure isproposed:

a. EEI identifies the need for repairs and brings them to3 ~~~th, attention of OFSC-FE and the Operating Contractor.b. The ACO task order contractor will have priced optionsfor pro-defined tank shell weld and floor repairs. The3 ~~~appropriate "'priced option" quantity will be exercisedby the Operating Contractor for repair by the ACO task

order contractor.

C. SEE will provide surveillance of the work and recommendacceptance to the Operating Contractor if work is5 ~~acceptable. Unacceptable work and remedies will bebrought to the attention of the Operating Contractor forfurther contractor repair.

ESpecial Tank Investigationl. Specific special investigation is required for several tanks5 ~due to site conditions found and tank history.

90-0113.00 - A

Meeting MinutesIoily 3, 1991 (Rev. 07/22/91)

2. Tank 608, DFSP Anchuirage

a. The tank has b~een out of service for over one year andIwent through lILSt winter with no fuel.

b. Vacuum box testing will be provided for All floor seams.

C. All floor plate. lap welds will be inspected.

d. The floor plateis will be spot UT checked for plateKthickness. Testing will be at the corner of each plateplus several random locations, with an average of 8-10tests per plate.

e. Should random testing indicate possible tank floorthinning, a priced option will be available for theGovernment to exercise and have EEl provide a grid-basedItank floor UT survey, at close interval.

3. DFSP WhittierI

a. All Whittier tanks have boon outfitted with doublebottoms with some floors exhibiting oil-canning. .I

b. The tank ACO task order contractor will cut floorcoupons in each tank.

C. EEI will Inspect the underside of the tank shell couponto determine If galvanic corrosion has been active. Thetype of fill material between the tanks will beIdetermined.

d. The ACO task order contractor will provide welded patchIplates, with follow-up inspection and vacuum boxtesting. At the conclusion of testing, the ACO task-order contractor will provide epoxy coating on the patchplates and weld.

1) ~e. Vacuum box testing will be provided for all floor seams.

1) ~f. All floor plate lap welds will be inspected.

t) g9. The floor plates will be spot UT checked for plateIthickness. Testing will be at the corner of each plateplus several random locations, with an average of 8-10tests per plate.

1) ~h. Should random testing indicate possible tank floorthinning, a priced option will be available for theGovernment to exercise and have kEI provide a grid-basedStank floor UT survey, at close interval.

nn~~~~~~~~~

EMeeting minutes'l0y 3, 1991 (Rev. 07/22/91)

SOFSP FAIRBANKS (TANKS 315 & 316)

I . A variety of surveys can be provided on these tanks, althoughfinal decision as to required scope must be provided by OFSC-FE. The following options are possible:

I :) ~a. Option I; no AlE effort (continue tank derate foradequate minimization of brittle failure risk).[Accepted by Government.]

* 1) b. Option 2; tank external survey including base ringalignment, weld inspection, tank shell verticality andI ~~~out-of-round survey. CRejected by Government.]

1 ~C. Option 3; external survey as noted above plus a fullbrittle failure interior survey on one or both tanks.I ~~~This would require tank draining, cleaning and gas-freeing. (Rejected by Government.]

IDFSP Fairbanks - Elelson AFB E-6 Facility1. The 6-6 fuel complex contains six 30,000 691 tanks erected in

1954, that appear from the outside to be in reasonable

condition with minimal brittle failure risk factors noted.P ~~One additional tank (Tank 22) is also in this complex but wasnot discussed at the meeting.

2. Options for brittle failure study scope at this facilityI ~~include the following:a. Option I; no work.

I) ~b. Option 2; tank external survey including base ringalignment, weld inspection, tank shell verticality anidout-of-round survey. (Base services..]

'9) ~C. Option 3; tank external survey plus full brittle failureinterior survey on one tank, if it can remain empty orI ~~~be cleaned again. (Priced option.]

ENGINEERING ANALYSIS AND FIELD SUPPORT SERVICES

I I. Immedilately upon receiving a Notice to Proceed, EEI willpreareanACO task order Scope of Work for use by the

Government in obtaining the necessary task order contractorsI ~~at each site to support the field effort.

2.* Tank historical records will be evaluated to determine whatS ~~activities over the years may have Increased the risk ofbrittle failure on the tanks.

I ~~~~~~~90-0113.00 - 6

Meeting minutes'uly 3, 1991 (Rev. 07/22/SI)

3. Tank shell coupons will be sent to the metallurgist formachine testing and analysis for brittle failure propertiesand metallurgical properties.

4. Structural calculations and evaluations will be provided todetermine if field observed conditions such as tank alignmentproblems, edge settlement and deflections are contributing toexcessive stresses are contributing to increased brittlefailure risk. Tank foundations or lack thereof will beevaluated and recommendations made for improvements. AIseismic analysis will also be provided, with respect tobrittle failure issues. A seismlc/geophysical evaluation isnot required. Refer to meeting report of DFSP, Whittier foradditional discussion.

5. A brittle failure assessment in accordance with API 653criteria will be provided for each tank.

6. The field findings and engineering evaluation will beutilized to provide an individual tank brittle failure riskIassessment and recommended fuel levels in an "as is"condition. included will the effect of minor operationalchanges which minimize brittle failure risk.

I. When field findings Indicate the problems requiring long-termremedies and repairs, a list will be prepared for each tank,with appropriate estimates of construction costs. Anadditional risk assessment will be conducted to determineappropriate fuel level after completion of reconmmendedrepairs.

S. As soon as possible after the field effort, a brief letterreport will be generated summarizing findings, immnediateconcerns and any necessary action that should be taken inIorder to place the tanks back In service.

9. An overall report will be provided inc~uding summary/Irecommendations, detailed field findings, calculations, costestimates, analysis and other pertinent; information generatedas part of our efforts.I

10. A separate report/document will be prepared for each facilityfor distribution to DFR-A and subsequently to each DFSPlocation. This report will briefly outline overall brittleIfailure issues, operational changes, and most importantly,the prevention of increasing the risk of brittle failure due

to inadequate tank repairs in the future.

On-.nui',(l nn- 7I

Meeting minutes* uly 3, 1991 (Rev. 07/22/SI)

We believe that the minutes of this meeting accurately reflect thestatements made, and that they represent the entire extent of alldiscussions. Those in attendance are encouraged to submitcorrections for revisions to these minutes if found necessary, ifno requests are made within 15 days of the date of issue of theseEminutes, they will be considered accepted as written.

Submitted by:

I Stephen S. Brooks, P.E.Executive Vice President

Us5/ilssIAR3ODistribution:

I NORTH4DIVDFSC-FEOFR-AI DFSP - AnchorageOFSP - WhittierPFSP - Fairbanks

Revisions Made 07/22/91 per Telcon/Fax Commsents.

I~~~~~~~9-130

Appendix "A"Code 4O22/TC:had

16 24 70-90-C-c.102204 September 1990Revised 29 January 1991

APPEN1DIX "A"lISTATEMET OF ARCHITECT-EJNGIUUE (Alt) SERVICES

FOREVALUTION/Alt CON TRA CT N62472-90-C-1022EVALU~REoPAIR~ OF ABOVE GEOUWW STORAGE TASK AT VARIOUS LOCATIONS

PART I -GENERAL INFORMATION

1.1. General Statement of Services

1.1.1. Th. LIE shall provide design services i codnevt hrequiemens, chedules, guidance and informatjon contained or referencedherein f or the locations listed belov.3

1.1..1.Location No. 1Title: Evaluate/Repair Storage Tanks 1 through 9Location: DFSr, Searsport, HE

Construction contract No.: 1624 72-9O.-C..0O5s(1.1.1.2 Location No. 23

Title: Evaluate/Repair storage Tanks 1 through 6Location: DFSP, Cincinnati, OHConstruction Contract No. 162472-go0.C..0061

1... Lcation No.5Title: Eaateair Strorage Tanks 812 truh80 /Locatin DFP Mhtt Er, AX 57eCosrction Contract No. M640057c..o~

1.1.16 Loation go. 6

Til: Evaluate/Repair Strorage Tanks 605 through 609 10Location: DFSP. Whittier, AK~Cos rut onC nt at o N2 72 9 -C061.1.1.6 Location No. 6~~~~Title: Evalute/Re atr St rage anks 05 tI

Appendix "A"

Code 4iO22/TC:hadh1624i7O-9O-C-1022

1.1.2 Milestone Schedule

Based on a Basic Contract award date of 0,4i15/91, the A/E shallattend the following meetings and provide the government with the followingsubmissions on or before the dates indicated:

Basic ContractIFirst SUbMission (Draft) 08/12/91 (lC1-pFirst Submission comments to A/E 09/09/91 C4wmeteis)First Submission Review Meeting 09/17/91 i we~esL)Final Report 10/07/91 ("o'uasisiS)

* ~1.1.2.1 Submission dates are the dates On which the submission is to be* received by all reviewing components including Northern Division (NORTHDIV).Dates for meetings, presentations and submissions shall be adjustsd with- respect to actual contract award dates and negotiated agreements. Refer tosubsequsit paragraphs for specific requirement with regard to meetings,presentations * and submissions.

1.2 Contract Informtion and Structure

1.2.1 The Contract for Architect-.gngneer (h/) services will be a fixed* priced negotiated contract between the A/E and the governumet, This appendix* '41 be part of the A/8 Contract in accordaunce with Section 01011, Generalaragraphs. The A/K shall not release any information concerning the projectP0 the public without written authorization from the goverinment.1.2.2 The Contract shall be structured as follows:

1.2.2.1 BASIC CONTRACT (PHASE I)

Work under the Basic Contract shalt be identified herein and includesall services necessary to provide the following submissions:

First submission (Draft)Submission of Final ReportsI ~1.2.2.2 PHASE II - FINAL DESIGN (UNPRICED)I ~1.2.2.3 PHASE III- POST CONSTRUCTION AWARD WORK (PCCAN) (UNPRICED)

1.2.2.4 PHASE IV - SUPERVISION AND INSPzCTIoI SnyzIetS (UNPuhCmn)I 1.2.2.5 The government reserves the right to implement Phase II, PhaseIIIandPhase TV o h otat Statement of A/c services and submissions- o Phase II, III and TV will be prepared after review of Final Report (BasicContract).

S~~~~~~~~Y27-0C12I~~~~~~~~~~~~~~

V pendix "A"ICode 4 0 2 2/TC:hkd(

1.2.3 The government review of A/E submissions will2 e termineOwhctho2Jnot work is being performed within this contract. ann aeviiN~ixengage in detailed checking of work performed by the AJE since this is theresponuibility of the Aix. The AJE wiii be held fully accountable for designerrors and omissions.

1.2.4. Points of Contact3

1.2.4.1 Prior to contract award. inquiries regarding this appendix andother aspects of the project should be directed to:Mr. James HerlihyIContract SpecialistNorthern DivisionNaval Facilitins Engineering CommandIU.S. Naval EasePhiladelphia, PA 19112-5094Telephone No. (215) 897-6051

1.2.4.2 After contract award, inquiries regarding design documentationand all other aspects of the project should be directed to:2ts hem- " shiam,- Design Manager ersva I e es aa KNorthern Division.

33U.S. Naval hueaPhiladelphia, PA 19112-5094 YTelephone go. (215)4e....aa6

1.2.5 Invoicing Procedures

1.2.5.1 Invoices for all services shall be submitted to:Commnanding OfficerUNorthern DivisionNaval Facilities Engineering CommandBuilding 77-L, U.S. Naval EasePhiladelphia, PA 19112-5094I

Details on invoice submissions to the government are contained in the pamphletentitled "Invoicing Procedures to be Used by Architect~ural-.Engineering andEngineering Service Contractors when Requesting Payment for Services Rendered.'"1.3 Project Description:

The work includes inspection, design and post construction contract awardIservices of petroleum product tanks at various locations in the ContinentalU.S.A. and Alaska. Perform on site inspection of such tanks by cleaning.

eivrTA c-c2N62472-gO0.C..1o 22 3~,(r3~~~~~~~~~

Appendix "A-* ~ ~~~~~~~~~~~~~~Code 4022/TC:had40~fi TAc-o COst4&o 62470-9g0-.C-1 022ok as frecin * idantifyijg and quantifying corrosion, identifying steel type,inpe ingwedineriyplt thickness and tank out of round, and providedocumentation of Potentialstoe far brittle fracture shall bem fully addressed. Also inspect tanks for level and settlement Provide a~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~.afr

eeladsetemn.Prvdseparate report for each location detailing findings of the investigation,calculations, conclusions, recom~medations, costs for repair, and operationsnecessary to reduce the risk of catastrophic failure. Follov on work at the* covernment*. option will includedaesign of repairs, post contract award work,* and supervision and inspection during construction.

1.3.1 Tank Data

Tank Hgt. Dia. raait earLocation (Ft) ~~~(BaL) Constr. ProductSearaport 1 40 52 15,135 1951 FS-22 40 120 80.612 1951. Jr-A3 40 10125,971 1q51 F8-24 40 IO125,955 1951 J12-45 40 150 125,985 1q51 JP-.46 40 150 125.983 1951. Jr-A

" ~7 40 100 56.014 1951 FS-2- ~8 40 10125,391 195?8 JP-49 40 150 1.25,330 1951s JP-4Cincinnati 1 48 110 80.000 1953 .1W-4A002 48 110 80,000 1.953 jr-43 48 110 00015-o

4 48 110 ~~80.000 1953 J-5 48 120 96.000 1953 JP-548 110 80,000 1953 .12-4

Fsxtnb 1 Al67 25,273 1953 J-316C 4 72,7 9

Whttier 801 40 70 27.000 1950 M -802 40 70 27,000 1950 JP-4803 40 70 27,000 1950 Jr-A4l9m~804 40 70 27,000 1950 JTP-4805 40 70 27,000 1950 .12-A 41806 40 70 27,000 1950 32-4807 40 70 27,000 1950 NUR808 40 70 27,000 1950 .7W-A

: yflchrage 60' 0'L013,98 119411 fil jwo;¶1tS 116240 1 s 132 969193c-U0poo

41 go -4 t¶TgI /; -~~~~~~~~~~~~~~~~~~~~~~~ t

Appendix "A"Icode 4022/TC:hadS624 70-90-C-1022

z'ART 2 - CONTRACT REQUmmmfENTs

2.1 General Contract RequirementsI

2.1.1 Under the Basic Contract, the AlE Shall perform an invesltigation andprepare a report with cost estimate in accordance with the requirementsdescribed herein. Detailed requirements for Phase IT, Phase ElI and Phase iVof this project will be provided tinder a separate amendment to the A/Ccontract.

2.1.2 Reports

SECKAVINST 4200.31 requires that all contractor furnished reports beIclearly identified as having been furnished by a contractor. The A/B shallsubmit all reports with a cover sheet containing the required information. Asample cover sheet will provided to the A/C. Specifications, cost estimates,and design analysis, except for reports included in the design analysis, arenot covered by this requirement.I

2.1.3 Cost EstimateU

Cost estimates shall be prepared in accordance with the attachmiententitled "A/E Contract Requirements for Preparation of Construction CostEstimate."I

2.1.4 Site Investigation and Testing

The A/E shall perform the following services for each tank:1. Examin, for uneven foundation/soil settlement around each tank andHevaluate abnormal condition that may contribute to tank brittle fracture.2. Conduct on the tank shell an out-of-round survey. IA3. Evaluate any bulges and other deformations that are observed on theshell of any tank. Bulges in the first shell course have been observed ontanks 801, 805, and 807 at Whittier; however, the evaluation should not belimited to these three tanks should additional bulges or other deformations be

observed on other tanks.

4. Conduct a thorough visual examination, and perform ultrasonic tests4UtLstress concentrations rt1-%,eod106ot-

CsJoI i.~,-5.Radiographicaillyexamine all weld seams (joints) of the loerhalf.~Y-2cec ngf achtak hel ad oints between tan hl and tank floor to 44idenLtify Fdefective welds.M , rwo2

fAP~~rj Qt-AJ

5

Appendix "A"Code 4 0 22/TC:had

6. Perform tank p late strength evaluation and full range of impacttesting, as outlined in the reference #4o oil & GsJunl1 e 0adiaccordance with API 650, incLuding charpy Vnthtsst nuerssacto brittle atttue.ne 4 alb etnswih ? 6 ;O:.c.o2.2 Meig

2.2.1 TeAEsalatn almeig hc r set forth below andsubmit a brief report on eachi meetfr4 attended by the A/C. See the Milestoneschedule prgaho at1frapoiaedts

2.2.2 As part of the Basic Contract requiremets:(1) The A/E shlftedapo-netgto

leeting. ?,IA'"(2) The A./R shall attend a First Submission Rleview fleeting.

2.3 Submission Requiremrnts

2.3.1 The A/K shall respond to all Government comments in writing. Theresponse to Covernmant Review comments shall become part of the A/Vs next2.3isio.2 is eotSbisoDat

a ~~Each report Draft shall include, but not be limited to:r ~~1. Discussion and results of the mite investigation and testing.2. Evaluation of the condition of each tank including any risks thatmay be associated with continued use.3. Recommenxdations for any corrective measures that may be required.4. itemized Cost Estimates to accomplish the recommended corrections.5. An economic analysis comparing tank repair versus tank replacement.6. Calculations structural analysis and test data as required tosupport assessment and recoummendations.

7. Photographs and sketches as required for illustration.2.3.3 FinlReport2

Each report shall include the following:

1. Report as outlined in paragraph 2.3.2.

N62472-go0-C..1022I~~~~~~~~~~~~~~~

Appendix "A"ICode 4O22/TC:hadN62470-90..C. 1 022

2. Responses to colmlents generated during review of the Draft Report.2 .4 Distribution of oesign Documents

Each report uhall. be dist~ributed to the addressee. listed below for thatlocation. Submissions shall be distributed prepaid by air freight/scheduledflight/bus courier/mail service as appropriate to the following organizationsand in accordance with the distribution schedule. The A/E shall insure thatcomplete addresses are shotn on the exterior of all letters and parcels.I2.4.1 Location go. 1; rpsp Searsport', ME:

1. Officer in Charge of Construction (01CC)Northern Division, Naval Facilities Engineering CommandBldg. 77-L., U.S. Naval Ease,IPhiladelphia, Ph 19112-5094ATTN: Code 40229= 56

2. Resident Officer in Charge of Construction (ROCCc)INorth haint Area GroupNaval Security Group ActivityIWinter Harbor, HE 04693

3. '(Major Claimant)'Defense Fuel Supply CenterICameron StationAlexandria, VA 22304-6160Attn: Fred Ma/Fe

4. (Tenant)Quality Surveillance RepresentativeP.O. Box 349Searsport, HE 04974Attn: Tom Moore

5. (Other)CommanderIDefense Fuel Region - NortheastBldg. 2404Eccuire APE, NJ 0864l-5000

N624 7 2-90-.C-1022

7~~~~~~~~~

APpendix --A,,Code 4O22/1TC:hadN62470..9o0.C..1022

* ~~2.4.2 Location No. 2, DFsr, Ci~ncinnatij. OH:

1. officer ifl Charge of Construction (OICC)Northern Division, Naval Facilities Engineering CommandI ~ ~~~Bldg. 77-L, U.S. Naval Base,Philadelphia, PA 19112-5094ATTN!: Code 4022/TC

2. Resident Officer in Charge of Construction (ROCCc)Building 868Rickenbalker Air National Guard BaseColumbus, OH 43217

3. (major Claimtant)

Cameron StationAlexandria, VA 22304-6160Attn: Fred Ma/Fe

4. (Tenant)Quality Surveillance RepresentativeI ~ ~~~4820 River RoadCincinnati, OH 45233Attn: Mr. William D. Evans

5. (Other)

CommuanderI. ~ ~~Defense Fuel Region - NortheastBldg. 2404Mc~uire An., NJ 08641-5000

I~~~~~~~~N27-0C12

Appendix "A"UCode 4022/TC:hadN62470-90-C-102

22.4.3 Location go. 3, DFSP Melville, RI:

1. Officer in charge of Construction (02CC)Northerm Division, Naval Facilities Engineering CoimmandBldg. 77-L, U.S. Naval Base,Philadelphia. PA 19112-50 94ATTN: Code 4022/TC

2. Resident Officer in Charge of Construction (101cC)Newport Residence office

.Newport, RI 02841-5063I3. (Major Claimant)

Defeonse Fuel Supply CenterCameron StationAlexandria. VA 22304-6160Attn: Fred Ma/Fe

4. (Tenant)Quality Surveillance RepresentativeP.O. Box MelvilleIPortsmouth, RI 02871.Attn: Mr. warren Preti

5. (Other)CommanderDefense Fuel Region - NortheastBldg. 2404Mc~uire AnS, NJ 08641-5000

N62472-90-C-1022 ~~~

9~~~~~~~~~

Appendix "A"I ~ ~~~~~~~~~~~~~~Code 4022rrC:had

2.4.4 Location MO. 4, DFSPI Fairbanks, AK;, Location go. 5,DFSPI Whittier, AK and Location No. 6, DFSPI, Anchorage, AK:1. Officer in Charge of Construation (01CC)Northern Division, Naval Facilities Engineering CommanadBldg. 77-L, U.S. Naval Ease,

Philadelphia. PA 19112-5094ATTN?: Code 4022/To

2. Resident Officer in Charge of Construction (ROICC ADAKc)Naval Air Station, P.O. Box 21ITO Seattle, WA 98791-1225

3. (Major Claimant)Defense Fuel Supply CenterCameron StationAlexandria, VA 22304-6160Attn: Fred Ma/Fe

4. (Tenant)Quality Surveillance RepresentativeBldg. 6-920, 3rd Floor East Wing1 LX~~lmnorA 99506..5000

5

Hr ooks c/o DFR-AX (for Location No. 6)5. (Other)

CoumanderDefense Fuel Region - AlaskaBldg. 6-920EIlmendorf, AK 99506-5000

6. (Other)EPA Northwest3505 Northwest Anderfonhzill RdSilverdale, WA 98383Attn: Code 04

7. (Other)Weat M&VFACUFCCOaP.O. Box 727San Brwac, CA 94066Attn: Code 04

S 3~~~~~~~~624 72-90-C..1022

I~~~~~~~~~~~1

Appendix "A",Code 40 2 2/TC:had1624 70-.90-C..1022

DISTRIBUION SCHEDULE FOR ALL LOCATIONS

SUIMBlSIOVM: Ad SeNO. OF COPIES2 -Draft Suhmigso drse o . 2 3. 4. 4. 6.*4 2 11 1 1 1Final S~~bmission 4 2 1 1 .

a Addressee gas. 6 £, 7 are applicable only to Locations Sos9. 4, 5, and 6 I

N62472-90-C-1022 ~~~

11~~~~~~~~

Appendix "A"Code 4022/TC:hadN62470-9O..C..10 22

.'ART 3 - APPLICABLS CRITERIA, GUIDANCE AND INFORMATTOM

3.1 Prior to negotiations, the following information and guidance shall- be provided to the A/E at no cost:

1. NAVFAC P-34 Design criteria used in Contracts for Public Works.

2. Sample A/E transmittal letters to WORTHDTV, ROICC HOST, andTenant.

3. Sample Report Cover Format

4. Invoicing Procedures to be used by Architectural-Engineeringand Engineering Service Contractor, when requesting payment forservices rendered.

5. A/K Contract Requirements for the Preparation of ConstructionEstimate.

* ~3.2 Prior to design, the following information and guidance shall beprovided to the A/E at no cost:

1. EIL-HDBX-1002/1, Nov. 1987, Structural Engineering GeneralRequirements.

2. MIL-HDBX-l0oov2, Sep. 1988, Structural Engineering-

3. HIL-HDBJC-1002/3, Sep. 1987, Structural Engineering Steel* ~~~~Structures.

4. DH-2.04, Sept. 1986, Structural Engineering-Concrete Structures.I ~~5. DM-7.1, Sept. 1986, Soil Mechanics.

6. DM-7.2. Sept. 1986, Foundations and Earth Structures.

7. DM-22, Aug, 1982, Petroleum Fuel Facilities (Interim Criteria23 Oct. 1989).

I ~ ~S. P-442, Jun. 1986, Economic Analysts Handbook.I 9 M AVFAC MO-230, Maintenance Manual, Petroleum Fuel Facilities.

N62472-90-C-102212

Appendix "A"UCode 4022/TC:hadN62470-90-C..1022

3.3 The following criteria shall also be used as guidance:

1. American Petroleum Institute Specifications (ArT 64 653). V I2. American Welding Society Specifications.

3. American~ Society of Mechanical Engineers Standards.I4. National Fire Protection Association Codes. v,

5. U.S. Environmental Protection Agency Regulations.

6. State of Maine Department of Environmental Regulations.

7. ANSI A5S.1., - American National Standards InstituteMinimum Design Loads for Buildings and Other Structures.3

962472-90-C-1022~~13~~~~~~~~

ENTERPRISE ENGINEERING, INC. r, (22 Stanwood Street SHEET NO OP______________

P.C. Box 398 CALCU_____ATE____BY_BRUNSWICK, MAINE 04022CLUAED11________ DATETael. No. (207) 729.1621 CHECKEDOBY___________ DATE ________Fax No. (207) 725*4:!52 SCALE Z. F c, 1 .r

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ENTERPRISE ENGINEERING, INC. ie~- ,.z(-~21 Stanwood Street SHEET NO _____________OF

BRUNSWICK, MAINE 04011 CALCULATED BY - - -. DATE-e~Tele. No. (207) 729.1621 CHIECKED BY___________DATEFax No. (207) 725-4252 SAE£zt/Y' Ce 4~'

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ENTERPRISE ENGINEERINGDFSC TANK INSPECTION - FIELSON AFB, ALASKA SURVEY DATE

_______ _____ __________TANK SHELL PLUMBNESS _ ___ SEPT. 1991SHELL DISTx OFFSET OFFSETI TANGENT ELEV. DIST ANGLE ANGLE SIN ANGLE SEAM-SEAM BOT-TOP

POINT (FEET) (FEET) (MMSS) (RADS) (FEET) (INCHES) (INCHES)TANK 6255\35 1____ _______ ___

Tl 0 91.26 4730 -0.0138 -1 .2609 0.0000 0.0000_________ 8 91.26 4310 -0.0126 -1.1459 1* -1.3803 -1.3803_________ 16 91.26 4630 -0.0135 -1.2344 * A- 1.068 -0.3185_________ 24 91.26 4600 -0.0134 -1.2211 -0.1593 -0.4778_________ 32 91.26 4300 -0.0125 -1.1415 -0.95_56_ -1.4334I ~~~~~~40 91.26 4640 -0.0136 -1.2388 1.1679 -0.2654

T2 0 90.15 4610 0.0134 1.2106 0.0000 0.0000_________ 8 90.15 4425 0.0129 1.1647 0.5506 0.5506_________ 11 90.15 4525 0.0132 1.1910 -0.3147 0.2360_________ 16 90.15 4400 0.0128 1.1538 0.4458 0.6818

24 90.15 4745 0.0139 1.2521 -1.1800 -0.498232 90.15 4545 0.0133 1.1997 0.6293 0.1311

_________ 40 90.15 4450 0.0130 1.1757 0.2884 -0.1311

T3 0 90.81 4645 -0.0136 -1.2349 1 0.0000 0.0000_________ 8 90.81 4525 -0.0132 -1.1997 1 -0.4226 -0.4226

_________ 16 90.81 4300 -0.0125 -1.1358 -0.7660 -*1.1886_________ 24 90.81 4405 -0.0128 -1.1645 0.3434 -05.804523 _________ ~32 90.81 4605 -0.0134 -1.2173 0.6339 -0.2113_________ 40 90.81 4415 -0.0129 -1.1689 -0.5811 -*0.7924

T4 0 92.49 4445 0.0130 1.2039 0.0000 0.0000________ ~8 92.49 4220 0.01 23 1.1389 1 0.7802 0.7802________ 16 92.49 4005 0.0117 1.0784 0.7264 1.50653 ________ ~24 92.49 3640 0.0107 0.9865 1.1030 2.6095_________ 32 92.49 3330 0.0097 0.9013 1.0223 3.6318_________ 40 92.49 4035 0.0118 1.0918 -226 -Mfl, 1.3451

SHEET 1 PRINTED 15-Oct-91

* , r a,605 t. r 7beczwavd ,Ot #XeS otr- ~~ avss~s An AVCs Svec do'-d.S4F

ENTERPRISE ENGINEERINGDFSC TANK [NSPECTION - EIELSON AEB, ALASKA SURVEY DATE

______ _____ ________TANK SHELL PLUMBNESS SEPT. 1991 3SHELL IDISTx OFFSET OFFSET U

TANGENT ELEV. DIST ANGLE ANGLE SIN ANGLE SEAM-SEAM BOT-TOPPOINT (FEET) (FEET) J(MMSS) (RADS) (FEET) (INCHES) (INCHES)

TANK 6255\35 ____ _______ ___ ___ ____

TS 0 90.37 4740 -0.01 39 -1.2530 0.0000 0.0000_________ 8 90.37 J 4610 -0.0134 -1.2136 -0.4731 -0.4731_________ 16 90.37 4545 -0.0133 1 -1.2026 -0.1314 -0.6046

24 90.37 4835 -0.0141 -1.2771 0.8937 0.2891 -________ 32 90.37 5130 -0.0150 -1.3538 0.9200- 1.2091________ 40 90.37 4700 -0.0137 -1.2355 *-1.4194-.10

T6 0 88.44 4705 0.0137 1.2112 TO0000 0 .00_________ 8 88.44 4830 0.0141 1.2477 -0.4373 -047

________ 16 88.44 4710 0.0137 1.2134 0.4116-005_________ 24 88.44 4510 1 0.0131 1.1619 0.6174 051_________ 32 88.44 4720 0.0138 1.2177 -0.6688 -0o077_________ 40 88.44 4850 0.0142 1.2563 -0.4630 -0.0

17 0 89.27 4730 -0.0138 -1 .2334 0.0000 0.0000_________ 8 89.27 4710 -0.0137 -1.2248 -0.1039 -0.1039

_________ 16 89.27 4525 -0.0132 -1.1793 -0.5453 -0.6491_________ 24 89.27 4725 -0.0138 -1.2313 0.6232 -0.0260_________ 32 89.27 4755 -0.0139 -1.2442 0.1558 0.1298_________ 40 89.27 4845 -0.0142 -1.2659 0.2597 0.3895

TB 0 89.07 4850 0.0136 1.2134 0.0000 0.00004 89.07 4520 0.0132 1 1.1745 0.4663 0.4663

_________ 8 89.07 4755 0.0139 1.2415 -0.8031 -0.3368_________ 16 89.07 4705 0.0137 1.2199 0.2591 -0.0777________ 24 89.07 4635 0.0136 1.2069 0.1554 0.0777 3________ 32 89.07 4810 0.0140 1.2479 -0.4922 -0.4145_________ 40 89.07 4515 0.0132 1.1724 0O.9067 0.4922

SHEET 2 PRINTED 15-Oct-91

I~~~~~~~~~~~~~~~~~~~~~~C

* ~~~~~ENTERPRISE ENGINEERINGDFSC TANK INSPECTION - EIELSON AFB, ALASKA SURVEY DATE

______ _____ ~~~~~TANK SHELL PLUMBNESS _ _ _ SEPT. 1991I ~ ~~~SHELL DISTx OFFSET OFFSETTANGENT ELEV. DIST ANGLE ANGLE SIN ANGLE SEAM-SEAM BOT-TOPI POINT I(FEET) (FEET) (MMSS) (RADS) (FEET) (INCHES) (INCHES)

TANK 6254\36 ____

Ti 0 87.54 4710 -0.0137 -1.2010 0.0000 0.0000_________ ~4 87.54 4450 -0.0130 -1.1416 -0.7129 - 0.71l 2-9_________ 8 87.54 4515 -0.0132 1 -1.1522 0.1273 -0.5856

_________ 16 87.54 4530 -0.01 32 -1.1586 0.0764 -0.5092* ______ ~~24 87.54 4910 -0.0143 -1.2520 1.1203 0.6111

_________ 32 87.54 4800 -0.0140 -1 .2222 -0.3565 0.2546_________ 40 87.54 4620 -0.0135 -1.1798 -0.5092 -0.2546

T2 0 88.30 4700 0.0137 1.2072 0.0000 0.0000_________ 8 89.30 4545 0.0133 1 1.1751 0.3852 0.385-2_________ 16 88.30 4655 0.0136 1 1.2050 -0.3596 0.0257

24 88.30 4845 0.0142 1.2521 -0.5650 -0.539332 88.30 4710 0.0137 1.2115 0.4880 -0.0514

_________ 40 88.30 4645 0.0136 1.2008 0.1284 0.0770

T3 0 87.72 4715 -0.0137 -1.2056 0.0000 0.0000_________ 8 87.72 4625 -0.0135 -1.1844 -0.2551 -0.2551_________ 16 87.72 4530 -0.0132 -1.1610 -0.2807 -0.5358_________ 24 87.72 4745 -0.0139 -1.2184 0.6889 0.1531_________ 32 87.72 4320 -0.0126 -1.1057 -1.3523 -1.1992

40 87.72 4635 -0.0136 1 -1.1886 0.9951 -0.2041I ~~T4 0 87.32 4645 0.0136 1 1.1874 0.0000 0.0000_________ 8 87.32 4310 0.0126 1 1.0964 * 1.0921 1.0921_________ 16 87.32 4430 0.0129 1.1303 -0.4064 0.6857_________ 24 87.32 4715 0.0137 1.2001 -0.8381 -0.1524__________ 32 87.32 4550 0.0133 1.1641 0.4318 1 0.2794

40 87.32 4640 0.0136 1.1853 -0.2540 1 0.0254

I SHEET 1 PRINTED 15-Oct-91

4' 4c ros1 yp~44J48V 455 flV4j Ae ,4MJ~flt41d'A

ENTERPRISE ENGINEERINGDFSC TANK INSPECTION - EIELSON AFB, ALASKA SURVEY DATE

_______ _____ _________TANK SHELL PLUMBNESS _ ___ SEPT. 1991 3POINT jSHEELL FE) (MS) (AS DISTx OFFSET OFFSET

TANGENT ELEV. DIST ANGLE ANGLE SIN ANGLE SEAM-SEAM BOT-TOPPOINT__ (FEET) (FEET)___ (MMSS)_ (RADS)_ (FEET) (INCHES) (INCHES)

TANK 6254\36 ____ ___ ___ ____

T5 0 87.82 4645 -0.0136 -1.1942 0.0000 0.0000_________ 8 87.82 4750 -0.0139 -1.2219 0.3321 0.3321

_________ 16 187.82 4810 -0.0140 1 -1.2304 0.1022 0.4342_________ 24 87.82 4710 -0.0137 1 -1.2049 -0.3065 0.1277________ 32 87.82 4745 -0.0139 -1.2198 0.1788 0.3065 3_________ 40 87.82 4750 -0.0139 -1.2219 0.0255 0.3321

T6 0 87.70 4620 0.0135 1.1820 0.0000 0.0000_________ 8 87.70 4655 0.0136 1.1968 -0.1786 -0.1786

_________ 16 187.70 4645 0.0136 1.1926 0.0510 -0.1275_________ 24 187.70 4610 0.0134 1 1. 1777 0.1786 0.0510_________ 32 87.70 4510 0.0131 1 1.1522 0.3061 037 -_________ 40 87.70 4615 0.0135 1 1.1798 -0.3316 0I0

77 0 88.74 4800 -0.0140 1 -1 .2390 0.0000 0.00008 88.74 4550 -0.0133 1 -1.1831 -0.6711 -0.6711

________ 16 88.74 4530' -0.0132 -1.1745 -0.1032 -0.7743_________ 24 88.74 4910 -0.0143 -1.2691 1.1357 0.3614________ 32 88.74 4730 -0.0138 -1.2261 -0.5162 -0.1549________ 40 88.74 4645 -0.01 36 -1.2067 -0.2323 -0.3872

TB 0 88.08 4655 0.0136 1.2020 0.0000 0.0000________ 4 88.08 4450 0.0130 1.1487 0.6405 0.6405________ 8 88.08 4720 0.0138 1.2127 -0.7686 -0.1281

_________ 16 88.08 4805 0.0140 1.2319 -0.2306 -0.3587_________ 24 88.08 5135 0.0150 1.3216 -1.0760 -1.4347 3_________ 32 88.08 4905 0.0143 1.2575 0.7686 -0.6661_________ 40 88.08 4725 1 0.0138 1.2148 0.5124 Vx-0.7942

SHEET 2 PRINTED 15-Oct-91 U

I ~~~~~~~~~~~~~~~~~~~~~C7

3 ~~~~~ENTERPRISE ENGINEERINGDFSC TANK INSPECTION - FIELSON AFB, ALASKA SURVEY DATE

______ _____ ________TANK SHELL PLUMBNESS _ __ SEPT. 1991SHELL DISTx OFFSET OFFSET

TANGENT ELEV. DIST ANGLE ANGLE SIN ANGLE SEAM-SEAM GOT-TOPI POINT (FEET) (FEET) (MMSS) (RADS) (FEET) (INCHES) (INCHES)TANK 6256/37 ___

TI 0 90.62 4745 -0.0139 -1.2587 0.0000 0.0000_________ 8 90.62 4615 -0.0135 -1.2191 -0.4744 -0.4744_________ 16 90.62 4935 -0.0144 -1.3070 1 .530.5799_________ 24 90.62 5050 -0.0148 -1.3399 1 0.3954 0.9752

* ______ ~~32 90.62 4700 -0.0137 -1.2389 1 -1.2125 -0.2372_________ 40 90.62 5115 -0.0149 -1.3509 1 1.3442 1.5815

T2 0 91.31 4805 0.0140 1.2771 0.0000 0.0000_________ 8 91.31 4545 0.0133 1.2151 0.7436 0.7436_________ 16 91.31 4435 0.0130 1.1841 0.3718 1.1155_________ 24 91.31 4710 0.0137 1.2528 -0.8233 0.2921

32 91.31 4630 0.0135 1.2350 0.2125 0.504640 91.31 4510 0.0131 1.1996 0.4249 0.9295

T3 0 94.18 4435 -0.0130 -1.2214 0.0000 0.0000_________ 8 94.18 4405 -0.0128 -1.2077 -0. 1644 -0.1644

_________ 16 94.18 4430 -0.0129 -1.2191 0.1370 -0.0274_________ 24 94.18 4110 -0.0120 -1.1278 -1.0957 -1.1231________ 32 94.18 4355 -0.0128 -1.2031 0.9040 -0.21913 ~~~~~~40 94.18 4330 -0.0127 -1.1917 -0.1370 -0.3561

T4 01 92.73 4410 0.0128 1.1913 0.0000 0.0000_________ 8 92.73 4225 0.0123 1.1441 0.5664 0.5664__________ 16 92.73 4550 0.0133 1.2363 -1.108 G0.39_________ 24 92.73 4615 0.0135 1.2475 --0.1349 -0.6743_________ 32 92.73 4545 0.0133 1.2340 0.1618 -0.5125__________ 40 92.73 4545 0.0133 1 1.2340 0.0000 -. 12

U SHEET 1 PRINTED 1 5-Oct-91

/ Vt 1 ~ ~ ~ l~ vf *CZ o&e%


_______ _________ ~~TANK SHELL PLUMBNESS _____SEPT. 1991

SHELL DISTx OFFSET OFFSETTANGENT ELEV. DIST ANGLE ANGLE SIN ANGLE SEAM-SEAM BOT-TOP

POINT (FEET) (FEET) (MMSS) (RADS) (FEET) (INCHES) (INCHES)TANK 6256137-

TS 0 92.33 4545 -0.01 33 -1 .2287 0.0000 0.0000-_________ 4 92.33 44.45 -0.01 30 -1 .2018 1 -0.3223 -0.3223_________ 81 92.33 4635 -0.0136 -1.2511 0.5908 0.2686_________ 16 92.33 4650 -0.0136 -1.2578 0.0806 0.3491_________ 24 92.33 5125 -0.0150 -1.3809 1.82613_________ 32 92.33 4845 -0.0142 -1.3093 -0.8594 0.9668_________ 38 92.33 4845 -0.0142 -1 .3093 0.0000 0.9668_________ 40 92.33 5140 -0.0150. -1.3876 0.9399 141y1.90673

T6 0 92.22 4520 0.0132 1.2161 0.0000 0.0000._________ 8 92.22 4500 0.0131 1.2071 0.1073 0.1073 3________ ~16 92.22 4530 0.0132 1.2205 -0.1609 -0.053f6________ 24 92.22 4555 0.0134 1.2317 -0.1341 -0.1~_________ 32 92.22 4910 0.0143 1.3189 -1.0461 -1.23________ ~40 92.22 4610 0.0134 1.2384 0.9656 -0.2682

VT 0 93.50 4630 -0.0135 -1.2647 0.0000 0.0000________ ~4 93.50 4350 -0.01 28 -1.1921 -0.8703 -0.8703________ ~8 93.50 4550 -0.0133 -1.2465 0.6527 -0.2176_________ 16 93.50 4500 -0.0131 -1.2239 -0.2720 -0.48953_________ 24 93.50 4.450 -0.0130 -1.2193 -0.0544 -0.5439________ ~32 193.50 4230 -0.0124 -1.1559 -0.7615 -1.3054_________ 38 93.50 4430 -0.0129' -1.2103 0.6527 -0.65273_________ 40 93.50 4815 -0.0140 -1.3123 1.2238 0.5711

T8 0 91.19 4510 0.0131 1.1981 0.0000 0.00003_________ 4 91.19 4350 0.0128 1.1627 0.4244 0.4244w_________ 8 91.19 4445 0.0130 1.1870 -0.2918 0.1326

_________ 16 91.19 4300 0.0125 1.1406 0.5570 0.68963_________ 24 91.19 4835 0.0141 1.2887 -1J7771 -1.0875

32 ~~91.19 4425 0.0129 1.1782 1.3262 0.238740 ~~91.19 4610 0.0134 1.2246 -0.5570 -0.74273

SHEET 2 PRINTED 15-Oct .


_____ ________ TANK SHELL PLUMBNESS _ __ SEPT. 1991

SHELL I DISTx OFFSET OFFSETTANGENT ELEV. DIST ANGLE ANGLE SIN ANGLE SEAM-SEAM BOT-TOPI POINT (FEET) (FEET) (MMSS) (RADS) (FEET) (INCHES) (INCHES)TANK 6257/38 1 ______0__ _____I ~~Ti 0 88.64 4710 -0.0137 -1.2161 O.00 0.0000

_________ 8 88.64 4610 -0.0134 -1.1903 --0.3094 -0.3094_________ 16 88.64 4740 -0.0139 -1.2290 0.4641 0.1547

24 88.64 4800 -0.0140 -1.2376 0.1031 0.2578_________ 32 88.64 4415 -0.0129 -1.1409 -1.1602 -0.9024_________ 40 88.64 4550 -0.0133 -1.1817 0.4899 -0.4125

I ~~T2 0 88.58 4610 0.0134 1 1.1895 0.0000 0.0000_________ 8 88.58 4455 0.0131 1.1573 0.3865 0.3865

_________ 16 88.58 4515 0.0132 1.1659 -0.1031 0.2834_________ 24 88.58 4855 0.0142 1.2604 -1.1336 -0.8502

32 88.58 4810 0.0140 1.2411 0.2319 -0.618340 88.58 4635 0.0136 1.2003 0.4895 -0.1288

T3 0 92.73 4515S -0.0132 -1.220S 0.0000 0.0000_________ 8 92.73 4305 -0.0125 -1.1621 -0.7013 -0.7013_________ 1 6 92.73 4425 -0.0129 -1.1981 0.4316 -0.2697_________ 24 92.73 4345 -0.0127 -1.1801 -0.2158 -0.4855__________ 32 92.73 4430 -0.0129 -1.2003 0.2427 -0.24273 ~~~~~~40 192.73 4520 -0.0132 -1.2228 0.2697 0.0270

T4 0 91.14 4605 0.0134 1.2217 0.0000 0.0000_________ 4 91.14 4350 0.0128 1.1621 0.7158 0.7158_________ 8 91.14 4520 0.0132 1.2018 -0.4772 0.2386_________ 1 6 91.14 4505 0.0131 1.1952 0.0795 0.3181_________ 24 91.14 4520 0.0132 1.2018 -0.0795 0.2386_________ 32 91.14 4625 0.0135 1.2305 -0~.346 -0.1060_________ 40 91.14 4455 0.0131 1.1908 1 0.4772 0.3711

E SHEET 1 PRINTED 15-Oct-91

ENTERPRISE ENGINEERING3DFSC TANK INSPECTION - EIELSON AFB, ALASKA SURVEY DATE

_______ ____ _________TANK SHELL PLUMBNESS SEPT. 1991SHELL DISTx OFFSET OFFSET -TANGENT jELEV. DIST ANGLE ANGLE SIN ANGLE SEAM-SEAM ROT-TOP

TANK 6257\38 (FEET) (MMSS) (RADS) (FEET) (INCHES) (INCHES)

T5 41 91.29 4455 -0.0131 -1.1927 0.0000 0.0000_________ 8 91.29 4640 -0.0136 -1.2392 0.5576 0.5576_________ 16 91.29 4945 -0.0145 1 -1.3211 0.9824 1.5401_________ 24 91.29 4605 -0.0134 1 -1.2237 -1.1683 0.3717_________ 32 91.29 4615 -0.0135 1 -1.2281 0.0531 0.4248_________ 40 91.29 4630 -0.0135 1 -1.2348 0.0797 - 0.504S

T6 0 91.62 4620 0.0135 1 1.2348 0.0000 0.0000 3__________4 91.62 4415 0.0129 1 1.1793 0.6662 06662__________8 91.62 4520 0.01 32 1 1.2082 -0.3464 0.3198_________ 16 191.62 4335 0.0127 1 1.1615 0.5596 089_________ 24 91.62 4310 0.0126 1.1504 0.1332 1.02

32 91.62 4215 0.0123 1.1260 0.2931 1.340 91.62 4430 0.0129 1.1859 -0.7195 0.58

17 0 90.23 4605 -0.0134 -1 .2095 0.0000 0.00_________ 4 90.23 4405 -0.0128 -1.1570 -0.6299 -0.6299 3________ 81 90.23 4535 -0.0133 -1.1964 0.4724 -0.1575_________ 16 190.23 4600 -0.0134 -1.2073 0.1312 -0.0262

24 190.23 4620 -0.0135 -1.2161 0.1050 0.0787 3________ 32 190.23 4735 -0.0138 -1 .2489 0.3937 0.4724________ 40 90.23 4955 -0.0145 -1.3101 0.7348 /4pje 1.2072

T8 0 90.28 4750 0.0139 1.2561 0.0000 0.0000_________ 4 90.28 4520 0.0132 1.1905 0.7878 0.7878_________ 8 90.28 4625 0.0135 1.2189 -0.3414 0.4464 3

12 90.28 4755 0.0139 1.2583 -0.4727 -0.0263 -_________ 16 90.28 4715 0.0137 1.2408 0.2101 0.1838_________ 24 90.28 4345 0.12 1.1489 1.1029 1.2867 5_________ 32 90.28 4420 0.12 1.1642 -0.1838 11.1029_________ 40 90.28 4410 0.181.1598 0.0525 11.1554

SHEET 2 PRINTED 15-Ot9

3 ~~~~~ENTERPRISE ENGINEERINGDFSC TANK INSPECTION - EIELSON AFB, ALASKA SURVEY DATE

______ ~~~~~~~~TANK SHELL PLUMBNESS ___ SEPT. 1991:3 ~~~~~SHELL DISTx OFFSET OFFSETTANGENT ELEV. DIST ANGLE ANGLE SIN ANGLE SEAM-SEAM EOT-TOP* ~~POINT I(FEET) (FEET) (MMSS) (RADS) (_FEET) (INCHES) (INCHES)

* TANK 6259/39Tl 0 90.7$1~ 4725 -0.0138 -1.2517 0.0000 0.0000_________ ~8 90.7c$ 4335 -0.0127 -1.1505 4- J132142 -1.2142_________ 16 90.7f; 4550 -0.0133 ~-1.20~99 ~0.7~127 -0.5015_________ 24 90.75 4800 -0.0140 -1.2671 0.6883 0.1848_________ 32 90.7c$ 4735 -0.0138 -1.2561 -0.1320 0.0528_________ 38 90.75 4700 -0.0137 -1.2407 -0.184 -0.1320_________ 40 90.75 4955 -0.0145 -1.3177 0.9238 0.7919I ~~T2 0 90.10 4640 0.0136' 1.2231 0.0O000 0.0000_________ ~8 90.10 4450 0.0130 1.1750 0.5765 0.5765

16 90.10 4520 0.0132 1.1881 -0.1572 0.419324 90.10 4545 0.0133 1.1990 -0.1310 0.2883321 90.10 4820 0.0141 1.2667 -0.8124 -054

_________ 401 90.10 4655 0.0136 1.2296 0.4455 -0.0786

T3 0 87.62 4705 -0.0137 -1.2000 0.0000 0.0000_________ ~8 87.82 4840- -0.0~142 -1 .2404 0.4842 0.4842_________ 1 6 87.62 4820 -0.0141 -1.2319 -0.1019 0.3823_________ 24 87.62 4625 -0.0135 -1.1830 -0:.5862 -0.2039

* _________ ~32 87.62 4310 -0.0126 -1.1002 -0.9939 -1.1978* _________ ~40 87.62 4440 -0.0130' -1.1384 0.458-7 -0.7391

T4 0 87.94 4645 0.01 36 1.1959 0.0000 0.00008 87.94 4840 0.0142 1.2449 -0.5883 -0.5883

_________ 16 87.94 4850 0.0142 1 1.2491 -0.0512 -0.6395_________ 24 87.94 5000 0.01 45 1.2790 -0.3581 -0.9975_________ 32 87.94 4835 0.0141 1.2428 0.4348 -0.562740 87.94 4900 0.0143 1.2534 -017 0.6906I SHEET 1 PRINTED 15-Oct-91

a-r- o0, -pcQ e-A1 dOw s n av6sc5C

ENTERPRISE ENGINEERINGIDFSC TANK INSPECTION - EIELSON AFB, ALASKA SURVEY DATE

_________ TANK SHELL PLUMBNESS _____SEPT. 1991 3SHELL DISTx OFFSET OFFSET

TANGENT ELEV. DIST ANGLE ANGLE SIN ANGLE SEAM-SEAM BOT-TOPPOINT (FEET) (FEET) (MMSS) (RADS) (FEET) (INCHES) (IINCHES)

TANK 6259/3.9UTS 0 90.42 4450 -0.0130 -1.1792 0.0000 000

_________ 8 ~~90.42 4630 -0.0135 -1 .2230 .52-60 0.5200 5_________ 16 90.42 4700 -0.0137 -1.2362 0.1578 0.6838_________ 24 90.42 4440 -0.0130 -1.1748 -0.7364 -0.0526_________ 32 90.42 4830 -0.0141 -1.2756 1.2098 1.1572_________ 40 90.42 4750 -0.01 39 -1 .2581 -0.2104 M t0.9468

T6 0 92.38 4620 0.0135 1.2450 0.0000 0.600-008 92.38 4520 0.0132 1 1.2182 0.3224 0.32247

16 92.38 4215 0.0123 1 1.1353 0.9942 1.3166241 92.38 4520 0.01 32 1 1.21 82 --0.9942 0.3224

________ 321 92.38 4320 0.0126 1 1.1644 0.6449 0.97________ 401 92.38 4730 0.0138 1 1.2764 -1 .3435 -0.37

T7 0 90.63 4755 -0.0139 1 -1 .2832 0.0000 0.60000_________ 8 90.63 4525 -0.01 32 -1.1973 -0.7908 -0.7908

__________ 16 90.63 4515 -0.01 32 -1.1929 -0.0527 -0.8435 3__________ 24 90.63 4505 -0.01 31 -1.1885 -0.0527 -0.8963_________ 32 90.63 5030 -0.0147 -1.3313 1.140.8172_________ 401 90.63 4820 -0.01 41 -1 .2742 -0.6854 0.1318

T8 0 90.73 4725 0.0138 1.2514 0.0000 0.00008 90.73 4600 0.0134 1 1.2140 0.4486 0.4486 3

_________ 16 90.73 4605 0.0134 1 1.2162 -0.0264 0.4222_________ 24 90.73 4410 0.0128 1 1.1656 0.6070 1.0292_________ 32 907 500.0133 1.2096 0.278 051_________ 40 9.3 4200381.2514 -0.5014 0.0000

SHEET 2 PRINTED 15-Oct-91 3

I ~~~~~ENTERPRISE ENGINEERINGDFSC TANK INSPECTION - EIELSON AFB, ALASKA SURVEY DATE3 __________ ~~~~~~TANK SHELL PLUMBNESS _____SEPT. 1991

SHELL DISTx OFFSET OFFSET- TANGENT ELEV. DIST ANGLE ANGLE SIN ANGLE SEAM-SEAM BOT-TOP

POINT (FEET) (FEET) (MMSS) (RADS) (FEET) (INCHES) (INCHES)TANK 6258\40 ________

TlI 0 90.41 4610 -0.0134 -1.2141 0.0000 -0.0000_________ ~8 ~ 90.41- 4355 -0.0128 ~ -1. 1549 -0.7100 -0.7100

16 90.41 4835 -0.0141 -1.2777 Ajjf1l476 0.762624 90.41 4905 -0.0143 -1.2908 ~ 0. 1 578 0.92043 ~~~~~~32 90.41 4540 -0.0133 -1.2010 _-1.0782 -0.1578

_________ 40 90.41 4630 -0.0135 -1.2229 0.2630 0.1052

I ~~T2 0 88.19 4520 0.0132. 1.1629 0.0000 0.0000_________ ~4 88.19 4325 0.0126 1.1138 0.5900 0.5900_________ ~81 88.19 4500 0.0131 1.1544 -0.4874 0.1026_________ 161 88.19 4700 0.0137 1.2057 -0.6156 -0.5130

24 88.19 5055 0.0148 1.3061 -1.2056 -1.718632 88.19 4845 0.0142 1.2506 0.6669- -1.0517

__________ 40 88.19 4615 0.0135 1.1864 0.7695 I/44/ -0.8721

I ~~T3 0 92.37 4435 -0.0130 -1.1979 0.0000 0.0000-________ ~4 92.37 4345 -0.0127 -1.1755 -0.2687 -0.2687_________ ~81 92.37 4540 -0.0133 -1.2270 0.6179 -0.3493

16 92.37 5115 -0.0149 -1.3770 1.012.1493________ ____24 92.37 4655 -0.0136 -1.2606 j 1.3971 0.7523_________ 32 92.37 4500 -0.0131 -1.2091 -0.6179 0.1343_________ 40 92.37 4435 -0.0130 -1.1979 -0.1343 0.2687

T4 0 90.74 4510 0.0131 1.1921 0.0000 0.0000__________ a 90.74 4740 0.01 39 1.2581 -0.7918 -0.7918_________ 16 90.74 4930 0.0144 1.3065 -0.5806 -1 .3724_________ 24 90.74 4245 0.0124 1.1264 -0 2.1378 0.7654_________ 32 90.74 4150 0.0122 1.1042 0.2903 1.05573 _________ ~40 90.74 4330 0.171.1482 -0.5279 0.5279

I SHEET 1 PAINTED 15-Oct-91

S ipr- O_,4C -A" fWFSS IAI "4Y Swa C C01ds C,

ENTERPRISE ENGINEERINGDFSC TANK INSPECTION - BIELSON AFB, ALASKA SURVEY DATE

______ _____ _________TANK SHELL PLUMBNESS _ __ SEPT. 1991 3SHELL DISTx OFFSET OFFSET U

TANGENT ELEV. DIST ANGLE ANGLE SIN ANGLE SEAM-SEAM SOT--TOPPOINT _(FEET) (FEET) (MMSS) (RADS) (FEET) (INCHES) (INCHES)

TANK 6258\40. UT5 0 92.21 4450 -0.0130 -1 .2025 0.0000 0.0000_________ 8 92.21 4420 -0.0129 -1.1891 -0.1609 -0.1609 5

_________ 16 92.21 4515 -0.0132 -1.2137 0.2950 0.1341_________ 24 92.21 4345 -0.0127 -1.1735 -0.4828 -0.3487_________ 32 92.21 4430 -0.0129 -1.1936 0.2414 -0.1073

40 92.21 4505 -0.0131 -1 .2092 0.1877 0.0805

T6 0 89.01 4425 0.0129 1.1500 0.0000 0.60000_________ 8 89.01 4745 0.0139 1 1.2363 -1.0356 -1.0356

_________ 16 89.01 4800 0.0140 1 1.2428 -0.0777 -1.1133________ 24 89.01 4-425 0.0129 1.1500 1.1133 0.000________ 32 89.01 4520 0.0132 1.1737 -0.2848 -0.2848_________ 40. 89.01 4500 0.0131 1.1651 0.1036 -0.18

17 0 89.77 4730 -0.0138 -1.2403 0.0000 0.0000_________ 8 89.77 4555 -0.0134 -1.1990 -0.4961 -0.4961

16 89.77 4710 -0.0137 .- 1.2316 0.3917 -0. 1044_________ 24 89.77 4545 -0.0133 -1.1946 -0.4439 -0.5483 U_________ 32 89.77 4545 -0.0133 -1.1946 0.0000 -0.5483_________ 40 89.77 4540 -0.0133 -1.1925 -0.0261 -0.574-4

T8 0 90.47 4610 0.0134 1.2149 0.0000 0.0000_________ 8 90.47 4355 0.0128 1.1557 0.7105 0.7105

1 6 90.47 4735 0.0138 1.2522 -1.1578 -0.4473 U_________ 24 90.47 5100 0.0148 1.3421 -1.0789 -1.5262_________ 32 90.47 4745 0.0139 1.2566 1.0262 -0.5000________ 4 0 90.47 4540 0.0133 1.2018 0.6579 0.1579 U

SHEET 2 PAINTED 15-Oct-91 5

ENTERPRISE ENGINEERINGI ~~~~~~DFSC TANK INSPECTION - EIELSON AFB, ALASKA SURVEY DATE_____ ________ TANK SHELL PLUMBNESS _ __ SEPT. 19913 ~~~~SHELL DISTx OFFSETf- OFFSET

TANGENT ELEV. DIST ANGLE ANGLE SIN ANGLE SEAM-SEAM BOT-TOPI POINT (FEET) (FEET) _(MMSS) (RADS) (FEET) (INCHES) (INCHES)TANK 22

Tl 0 1 50.55 2825 -0.0083 -1.2444 0.0000 0.0000_________ 8 150.55 2720 -0.0080 -1.1970 -0.5693 -0.5693_________ 16 150.55 2730 -0.0080 -1.2043 0.0876 -0.4817_________ 24 150o.55s 2905 -0.0065 -1 .2736 0.8320 0.3503_________ 32 150.55 2805 -0.0082 -1.2298 -0.5255 -0.1752_________ 40 150.55 2745 -0.0081 -1.2152 -0.1752 -0.3503_________ 48 150.55 2810 -0.0082 -1.2335 0.2190 -0.1314

IT2 0 150.37 2825 0.0083 1.2430 0.0000 0.0000_________ 8 150.37 2745 0.0081 1 1.2138 0.3499 0.3499_________ 16 1150.37 2830 0.0083 1 1.2466 -0.3937 -0.0437

24 1 150.37 2810 0.0082 1.2320 0.1750 0.131232 150.37 3005- 0.0088 1.3159 -1.0060 -0.874840 150.37 3005 0.0088 1.3159 0.0000 -0.8748

_________ 48 150.37 3210 0.0094 1.4070 -1.0935 -1.9683

IT3 0 151.57 2720 1 -0.0080 -1.2051 0.0000 0.0000_________ 8 151.57 2745 -0.0081 -1.2235 0.2204 0.2204_________ 16 1151.57 2540 -0.0075 -1.1316 % 1102-0.8818_________ 24 151.57 2720 -0.0080 -1.2051 0.8818 0.0000_________ 32 151.57 2830 -0.0083 -1.2565 0.6172 0.6172_________ 40 151.57 2935 -0.0086 -1.3043 0.5731 1.1904_________ 48 151.57 2935 -0.0086 -1.3043 0.0000 1.1904

T4 0 150.88 2825 0.0083 1.2472 0.0000 0.0000_________ 8 150.88 2735 0.0080 1.2106 0.4389 0.43893 _________ ~16 150.88 2830 0.0083 1.2508 -0.4828 -0.0439

_________ 24 150.88 2910 0.0085 1.2801 -0.3511 -0.3950_________ 32 150.88 3120 0.0091 1.3752 )'-1.1411 -1.53613 _________ 40 150.88 3145 0.0L09L2 J ~1.3935 -0.2194 -1.7555_________ 48 150.88 3225 0.0094 1. 1.4227 -0.3511 -2.1066

E SHEET 1 PRINTED 15-Oct-91VorZSJ

djr-~A""9& &WA455 &4d ofl 3H&c co&i'se

ENTERPRISE ENGINEERING3DFSC TANK INSPECTION - ETELSON AFB, ALASKA SURVEY DATE

______ _____ ________ TANK SHELL PLUMBNESS _ __ SEPT. 1991SHELL DISTx OFFSET OFFSET

TANGENT ELEV. DIST ANGLE ANGLE SIN ANGLE SEAM-SEAM SOT-TOPPOINT (FEET) (FEET) (MMSS) (RADS) (FEET) (INCHES) (INCHES)

TANK 22 _ _ _ _ _ _ _

TS 0 152.15 2600 -0.0076 -1.1507 0.0000 0.0000_________ 8 152.15 2445 -0.0072 1 -1.0954 -0.6639 -0.6639_________ 16 152.15 2515 -0.0073 -1.1175 0.2655 -0.3983_________ 24 152.15 2525 -0.0074 -1.1249 0.0885 -0.3098

32 152.15 2355 -0.0070 -1.0585 -0.7966 -1.1064_________ 40 152.15 2435 -0.0072 -1.0880 0.3541 -0.7524_________ 48 152.15 2655 -0.0078 -1.1913 1.2392 0.4868

T6 0 152.18 2745 0.0081 1.2284 0.0000 0.0000__________ 8 152.18 2715 0.0079 1 1.2063 0.2656 0.2656

_________ 16 152.18 2735 0.0080 1.2210 -0.1771 0.088_________ 24 152.18 2820 0.0082 1 1.2542 -0.3984 -0.309_________ 32 152.18 2755 0.0081 1 1.2358 0.2213 -0.08_________ 40 1152.18 2615 0.0076 1 1.1620 0.8853 076_________ 48 1152.18 2815 0.0082 1.2505 -1.0624 -0.2656

17 0 145.10 2820 -0.0082 -1.1959 0.0000 0.0000_________ 8 145.10 2900 -0.0084 -1.2240 0.3377 0.3377

16 145.10 2935 -0.0086 -1.2486 0.2954 0.6331_________ 24 145.10 3015 -0.0088 -1.2768 0.3377 0.9707 5_________ 32 145.10 3010 -0.0088 -1.2733 -0.0422 0.9285_________ 40 145.10 3005 -0.0088 -1.2697 -0.0422 0.8863_________ 48 145.10 3230 -0.0095 -1.3717 1.2240 M,4)te 2.1-103 3Ta 0 144.50 2910 0.0085 1.2260 0.0000 0.0000

__ 814~ 14.50 28200.00082 1.1909 0.42030. .4203f_________ 16 144.50 2905 0.0085 1.2225 -0.3783 0.0420_________ 24 144.50 3010 0.0088 1.2680 -0.5464 -0.5044_________ 32 144.50 3200 0.0093 1.3450 -0.9247 -1.4291 5_________ 40 144.50 3220 0.0094 1.3591 -0.1681 -1.5972_________ 48 144.50 1 3255 .1 0.0096 1 1.3836 -0.2942 -1.8914

SHEET 2 PRINTED 15S-Oct-91 I

* ©~~~~~~~~~~%S~~~~~~~~~~~~M-I~~~~~~~~~~~~~~~~~~~~-

* ~~~~~~~TANK 22

$2~~~~~~~~~~~~~

I~~~~~~~~~~~ 1

I 73y"X

U~ ~~ 7kv/i

(9) I

IIII

T- 1 ~ T

IT LT-3TLi I

T~~~~~~~~ ~~~I

I

II

I 10I

I -L MH-2 L

I - L6

I*- TANK 36/6254ps L.IT-5L2~~~~~~~~~~~~~L

I L

IIIis

II

@ 1

III

L4T-6 MH-2 I

ITANK 37/6256I

L7 I- ~~~~I

T-3 MH- L I

III

I SII

I (-5I

I LSlT-

I T

* T-5~~~T-1 ~~~~~~~~~~~~~~~~~~L7

Ip0T3IIIIIIS*II .

III

L4 iMH-2 T7I

I

T-1LiT- I

T-8 ~~~~~~~~~~I

II

I (3

II

* -4~~~~~~~~~~~~~-

L -- 4~~~~~~~~~~~L

I TANK 40/6258T-8

0 L2 ~~~~~~~~~~~~~~~-5L7I

I L-

III

I

I

ENTERPRISE ENGINEERINGDFSC TANK INS&-ECTION - EIELSON AFB, ALASKA

TANK SHELL SETTLEMENT SURVEY DATE SEPT. 1991~iTANK 35/625 _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _

TANK HEIGHT ............ 40

DIAMETER -....... 73.25IYOUNGS MODULUS .......... 30 0MOD OF ELASTICITY............29000000

SETTLEMENT OUT OF PLANE 'OUT OF P-LANE S(ALLOW.)POINT RIGID BODY SETTLEMENT DEFLECTIONNO. ELEVATION THETA TILT ELEV. Si FT) O/

1 100.010 -135.0 100.021 -0.011 -0.0060 PS2 99.990 180.0 100.000 -:0.010 -0.0050 PS3 99.980 225.0 99.979 0.001 0.0060 PS4 99.970 270.0 99.970 0.000 0.0040 PASS5 99.970 315.0 99.979 -- -- 0.-009 --- :0.001 5 PASS6 99.988 ~~~~~0.0 00.000 -. 0 15 ~ 0.0025 PASS

7 99.995 48.0 ~~~~~~~100.021 ----- 0.026 2~4j-0~.0 188 PASS8- 100.030 90.0 100.030 0.000 0.0185 PASS1 100.010 135.0 1 100.021 -0.011 -0.0060 PASS

POINT 11 IS5'CLOCKWISE FROM MANHOLE #1 PRINTED 30-Oct-91~

TANK 361625TANK HEIGHT ....... . .. 40IDIAMETER - ....... ... 73.25YOUNGS MODULUS ............ 30000MOD OF ELASTICITY .................... 29000000 _____

SETTLEMENT OUT OF PLANE OUT OF PLANE S(ALLOW.)POINT RIGID BODY SETTLEMENT DEFLECTION (E

NO. ELEVATION THIETA TILT ELEV. (T Si (FT) 6R4/Il~1 99.990 135.0 99.985 0.005 0.0115 PASS

2 99.960 180.0 99.973 -)1 fx-.10 PS3 99.955 225.0 99.96 005-.05 PS4 99.965 70. 99.95 ____U.10005 PS8 99.970 350 9.6 .1 .05 PS

6 99.98~~0 90.0-F 9907 0.007 -0.00505 PASS7 99.9~~90 435.0 9995.050005 PAS1 99.9 13. 9998 I .005 0.011,-oj5F PASSPOINT I IS 5'CLOCKWISE FROM MANHOLE #1 PRINTED 30-Oct-91

TANK 35/8255100.10 ~~~TANK SHELL SETTLEMENT

l0010

ioaos

I~~~~I0D&02I ~~~~~~100D01

99oo -

99.97

* ~~~~~~99.96saws

I ~2 3 4S 78

SURVEY POSITON ON TANKo SINE CURVE -s BASE RING0 ELEVATION-MEAN ELEVATION

38/8254

wornm TANK SHELL SETTLEMENT

* m~~~~~~oom

maw-

saw

I 99.94-~~ ~ ~~1 2 3 4 5 6 7SSURVEY POSITION ON TANK

a SINE CURVE +, BASE R040 ELEVATIONS ~ ~~~~~~~MEAN ELEVATION

I2 G

ENTERPRISE ENGINEERINGDFSC TANK INSPECTION - EIELSON AFB, ALAS`KA~~

TANK SHELL SETTLEMENT SURVEY DATE SEPT. 1991i ITANK 37/625TANK HEIGHT ... ......... 40DIAMETER ... 1..I...... 3.25YOUNGS MODULUS ............ 30000

MOD OF ELASTICITY ......... ........ 29000000 ~TFP~EOTO LN (LO.SETTLEMENTOUOFPAEOTOPLNSALW.

POINT RIGID BODY SETTLEMENT DEFLECTION (FT)jNO. ELEVA~TION THETA TILT ELEV. L-iY L(f- -- 2EL- ~ .. ~iO."1- 99.980 90.0 100.010 -0.030 "leX -0.0260 PASS2 100.0 150 100.004 -:0.004 0.0010 PASS3 10000 100 99.990 0.020 0.0150 PASS4 99.990 225.0 99.9~76 0.014 0.0040 PASS5 99.970 270.0 99.970 0.000 -- 0.0140 PASS6 99.990 315.0 99.976 0.014 0.0090 PASS7 100.000 0.0 99.990 0.010 0.0050 PASS8 100.000 45.0 100.004 -0.004 0.0060 PASS1 99.980 I 90.0 100.010 -0.030 -0.0260 PASS

POINT IlIS S'CLOCKW1SE FROM MANHOLE #1 PRINTED 30-Oct-91

TANK 381625TANK HEIGHT .... I..I.... 40IDIAMETER .... ...... 73 25YOUNGS MODULUS .. . . ..... 30000MOD OF ELASTICITY ............ 29.0..0.... 2_____ I

SETTLEMENT OUT OF PLANE OUT FOF PLANE S(ALLOW.)POINT RIGID BODY SETTLEMENT DEFLECTION (FT)

NO. ELEVATION THETA TILT ELEV. Uir SAFT. s'1 100.000 316.0 100.004 -0.004 -0.0015 PASS2 100.000 0.0 100.016 -0.016 M 00 1 50 PASS

3 100.0D30 46.0 100.026 0.004 0.0115 PASS4 10.030 90.0 100.030 0.000 0.0010 PASS5 100~~~.020 135.0 100.026 -0.006 -. 05 PS

100.010 180.0 100.016-0060.50 PS7 100.010 225.0 1-00.004 0.0060.05 PS8 100.010 270.0 100.0000010.90 PS

POINT 11IS 5'CLOCKWISE FROM MANHOLE #1 PRINTED 30-Oct-91

TANK 37/U525

loo~~~~os ~~TANK SHELL SETTLEM,,ENT

DO.04

maoo

* ~~~~~~99S89

I ~~~~~~99-97

1 2 3 4 5 a 7SURVEY POSITON ON TANK

0SINE CURVE + HASE RINO ELEVATIONMEAN ELEVATION

TANK 38/6257I.~ ~~~~10~ TANK SHEL SETTLEMENrT

nown

99.98-

1 2 3 4 a 6 7 a

SURVEY POSITION ON TANMa SINE CURVE + HLAS PANG ELEVATION

-NMEAN ELEVATION

ENTERPRISE ENGINEERING .DFSC TANK INSPECTION - FIELSON AFB, ALASKA-

TANK SHELL SETTLEMENT SURVEY DATE SEPT. 19911TNK 39/6250

TANK HEIGHT ... ..... 40

DIAMETER ,... 73.25IYOUNGS MODULUS . ... 30000MOD OF ELASTICITY ............ 29000000

SETTLEMENT OUT OF PLANE OUT OF PLANE S(ALLOW.)POINT RIGID BODY SETTLEMENT DEFLECTION (T

NO. ELEVATION THETA TILT ELEV. _gLFD _ Si (FT/i1 9 9. 9 90 90.0 100.020 -0.030 -0.0190 [PASS

2 100.000 13-5.0 100.016 -006-0.0085 IPASS3 100.020 180.0 100.005 0.015 M4X#A 0.0200 PASS4 100.000 225.0 99.994 0.006 -0.0065 PASS5 100.000 270.0 99.990 0.010 0.0040 PASS6 100.000 315.0 99.994 0.006 0.0010 PASS7 1o00.05 0.0 1005.000 0.0000 PASS8 100.010 45.0 100.016 -0.006 0.0090 PASS1 99.990 90.0 100.020 -0.030 -0.0190 PASS

POINT 19IS 5'CLOCKWISE FROM MANHOLE #1 PRINTED 30-Oct-91

TANK 40/625TANK HEIGHT .......... I..40

DIAMETER ..... ...... 73.25YOUNGS MODULUS .. ......... 30000MOD OF ELASTICITY ............. 29000000

SETTLEMENT OUT OF PLANE OUT OF PLANE S(ALLOW.)POINT RIGID BODY SETTLEMENT DEFLECTION (FT)NO. ELEVATION THETA TILT ELEV. Ui (FT) Si (FT)..... .

1 100.000 135.0 100.008 -0.006 -0.0085 PASS2 100.000 180.0 99.995005000 PS

99.990 225.0 .940060008 PS4 1 00.000 1 270.0 99.98002flj0010 PS

7 99.990 45.0 100.006 -0.016 ~~~~~~~~-0.0135 PASS8 100.010 90.0 ~~~~~~~100.010 0.000 0.0110 PASS

11 100.000 135.0 100.006 -0.006 -0.0085 PASSPOINT 1 IS 6'CLOCKWISE FROM MANHOLE #1 PRINTED 30-Oct-91

TANK 39/8259

ioon ~~~~~TANK SHELL SETrLEMENT

loaon

* ~~~~moe

'I D~~~~~~iO.04

IM02

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* ~~~~~~99.99

99S75

2 3 4 S 6 78SINE CURVE ~SURVEY PmOSIIN ON TANK

0 SINE CURVE + BASE RING ELEVATION-MEAN ELEVATION

40/8268lom TANK SHELL SETTLEMENT

* Da~~~M04

100.01

* ~~~~~~99.97

1 2 34S6 78SURVEY POSITION ON TANK

0l SINE CURVE + BASE RING ELEVATION

ME.AN ELEVATION

ENTERPRISE ENGINEERINGaDFSC TANK INSPECTION - EJELSON AFB, ALASKA

TANK SHELL SETTLEMENT SURVEY DATE SEPT, 1991TNK 22

TANK HEIGHT .. ... 48DIAMETER ........ 125IYOUNGS MODULUS ...... 30000MOD OF ELASTICITY .29000000 _____

SET-TLEM ENT OUT OF PLANE OUT OF PLANE S(ALLOW.) UPOINT RIGID BODY SETTLEMENT DEFLECTION (FT)

NO. ELEVATION THETA TILT ELEV. U T)Si (FT) .11 100.000 25.7 99.994 0.0 002 ASS U2 100.000 51.4 99.998 0.002 0.0040 PASS3 99.990 77.1 100.000 -0.010 flt*g -0.0110. PASS

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _4 10~0.000 102.9 100.000 0D.00-0 0.0090 PASS5 99.990 128.6 99.998 -0.008 ~~-0.0060 PASS6 99.990 15-4.3 99.994 -0.004 -0.0050 PASS7 100.000 180.0 99.990 0.010 0.0050 PASS8 100.000 205.7 99.986 0.14 ~ 0.0060 PS9 99.990 ~231.4~ 99.982 0.008 0.0010 PASS

1 0 99.980 257.1 99.980 0.000 -0.0090 PASSU1 1 99.990 282.9 99.980 0.010 0.0060 P--ASS a1 2 99.990 308.8 99.982 0.008 0.0010 PASS1 3 99.990 334.3 99.986 0.004± :-D0.0000 PiASS14 99.990 00 99.990 0.000 -0.0020 PASS

1 100.000 257 99,994 006-.20 PASSIPOINT I IS 5'CLOCKW1SE FROM MANHOLE #1 PRINTED 30-Oct-91

TANK 22

100.09 ~~~~TANK SHELL SETTLE.MENT

100.02

I l~~~moon

* ~~~9a36

1 2 3 4 5 6 7 a 9 10 II 12 13 1SURVEY POflMON ON TANKC SRINE CURVE + EBAS RING ELEVATION

- MEAN ELEVATION

ENTERPRISE ENGINEERING, INC. JB& '1R 721 Stanwood Street SHEET NO OP.C. Box 398 CALCLATD B OAE 2L YBRUNSWICK, MAINE 04011CACLEDY________Tele. No. (207) 729-1621 CHECKED By ___________DATEFax No. (207) 725.4252 SCALE -tc --

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21 Stanwood Street SHEET NO OF___________

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CALCULATED BY__BRUNSWICK, MAINE 04011 CAC5TE2) AT A . LTele. No. (207) 729-1621 CHECKED BY___________ DATEFax No. (207) 725-4252

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ENTERPRISE ENGINEERING, INC.~ e321 Stanwood Street SH~EET NO & OF _________

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ENTERPRISE ENGINEERING5DFSC TANK INSPECTION - EIELSON AFB, ALASKA

TANK 38/6257 _ TANK EDGE SETTLEMENTTANK 3816257 ________ _________ ~SURVEY DATE SEPT. 1991

ViERTICAL A(FT) B(IN)~ E'-0.37RSEAM TO TAN. PT. BULGE HT: ALLOWABLE PASS/FAIL EXCEEDED3V-i 3.34 1.00 1.24 PASSV-2 2.50 1.26 0.93 -FAIL 34.41%V-3 3.00 1.25 1.11 FAIL 12.61%V-A 2.50 0.76 0.93 PASS _____

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PRINTED 30-Oct-91

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SEAM____TO_ TANK T BLEDGE SETTWALEMENTFALEXEEE

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TV-b ~~~1.67 1.00 0.2 FAIL 1.29%TV-il1 1.50 0.50 0.56 PASS

PRINTED 30-Oct-91

4-o

ENTERPRISE ENGINEERINGDFSC TANK INSPECTION - EIELSON AFB, ALASKA

TANK EDGE SETTLEMENTTANK 4016258 SURVEY DATE SEPT. 1991

VERTICAL R (FT) B(IN) B'=0.37R_________TO TAN. PT. BULGE H-T. ALLOWABLE PASS/AI EXEDE

T-1 3.25 2.26 1.20 FAIL 87.50%TV-2 3.08 1.00 1.14 PASS _____F TVa2.34 0.75 0.87 PASSTV-4 3.25 1.25 1.20 FAIL 4__ 17____

TV-S 2.92 1.75 1.08 FAIL620 1TV-6 2.00 1.25 0.74 FAIL 68.920/TV-7 2.17 1.75 0.80 FAIL 118.75%TV-8 2.08 1.25 0.77 FAIL 62.34%

TV-S ~~2.25 0.76 0.83 1PASSTV-iC ~~2.00 1.25 0.74 1FAIL 68.92%

TV-li 2.50 1.75 0.93 FAIL 88.17%

PRINTED 30-Oct-91I

_ _ _ _ ~~~ENTERPRISE ENGINEERINGDFSC TANK INSPECTION - FIELSON AFB, ALASKA

TANK SHELL HOOP STRESS'TANKS 35-401ITANK HEIGHT 401FILL HT H(FT) 201% OF MAX 50.00TANK DIAMETER 73.25S.0G. 0 8

1ELEVATIONTO BOTTOM HEGTOF NTERN-AL-PRESS

COURSE THICKNESS OF COURSE LIQUID AT ELEVATION y HOOP STRESSNO. t(IN) y(FT)_hFT) p(PSF) __s(KSI)

BOTTOM 1 0.438 0 20998.4 6.972 ~ 0.375 8 12599.04 4.883 ~ 0.250 1 6 4 199.6,8 2.444 ~0.250 24 0 ___ ___ ___ __

TOPS5 0.250 32 0 01 0.00* ~~~~~~~~ ~~~~~~~~~~~~PRINTED 30-Oct-91

P TAN ~KS 35-401TAK HEIGHT 40

FILL HT H(FT) 400%6OF MAX. 100.00I ~ ~~TANK DIAMETER 73.25S. G. 0.8 _ _ _ _ _

ELEVATIONI ~ ~~~~~~~~~TO BOTTOM HEGTOF NTERNAL PRESS.COURSE THICKNESS OF COURSE LIQUID AT ELEVATION y HOOP STRESS

NO. t(IN) _YLFfQ_ hfiLpPF s(KSI)BOTT~OM 1 0.438 0 401996.8 13.93r~:: ~21 . 0.375 8 321597.44 13.00

3 0.250 161 24 1198.08 14.634:: 0.250 241 16787.78

TOPS 0.250 32 8 399.36 4.88PRINTED 30-Oct-Si1

42Z

ENERRIEENINESNDFSC TANK INSPECTION - EIELSON AFB, ALASKA

FILL HIT H(FT) 48I% OF MAX. 100,00TANK DIAMETER 1258.G. 0.8

ELEVATIONTO BOTTOM HEIGHT OF INTERNALPES

COURSE THICKNESS OF COURSE LIQUID AT ELEVATION OPSRSNO. AM) (! EE (PF sCI

BOTM1 0.875 0 4 301 42

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PRINTED 06-Nov-9I1

ENTERPRISE ENGINEERING, INC.Jo21 Stanwood Street SHEET NO

OF___________ _________P.C. Box 398 CALCULATED8 By' CATEBRUNSWICK, MAINE 04011Tele. No. (207) 729-1621 CHECKED BY __________DATE _______Fax No. (207) 725-4252 SCALE AO. nt8-},,e i

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DFSC ENTERPRISE ENGINEERINGUDFCTANK INSPECTION - EIELSON AFB3, AL-ASKA

______ _____ TANK DEAD LOADITANK 35-40 ~ ~ F-A73.25

WEIGHT OF SHELL:COURSE t(IN) H(FT) WT(LBS)

1 0.4383 8 32925.81I I2 0.375 8 28189.903 0.250) 8 18793.274 0.25) 8 18793.27I I5 0.250 8 18793.27

TOTAL WEIGHT: 117495.52 LBS= 117.5 K

WEIGHT OF BOTTOM PLATE:t(IN) WT(LBS)

0.281 48396.34 LBS= 48.4 K

WEIGHT OF ROOF:ROOF PLATE: t(IN) VWT(LBS)I

0.25 43018.97 LBS= 43.0 K

ROOF FRAMING: STI FRAMINGASSUMED (PSF) WT(LBS)

5 21070.51 LBS= 21.1 K

TOTAL ROOF WEIGHT: 64.09 KI

SUBTOTAL: 230.0 KI

~MISC.: STAIRS, PIPING, ETC5% OF SUBTOTAL: ii .5

'WEIGHT OF COLUMNS:NO. OF X-SECTION.

COLUMNS AREA(SQ.IN) HEIGHT WT(LBS)6 7 40 5716.67 5.7 K

ITOTAL WEIGHT OF TANK: 247.2 K

ENTERPRISE ENGINEERING, INC.9// 3 8p4S21 Stanwood Street SHEET NO OF__ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _P.O. Box 398 CALCULATED______BRUNSWICK, MAINE 0401 1 COLULTED YE

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INCOMPLETE FUSION Incomplete fusion or lack of fusion is the failure of the filler metal andbase metal to melt together. Incomplete fusion may also occur whereone filer bead fails to meet or fuse with another riller bead in a multi-pass weld. This discontinuity can occur anywhere In the filermetal or at the Interface between the filler metal and the base

base or filler meta] (Figure 46).

Incomplete Fusion or

I~~~~~~~~~~~~~~~~~~~~~~~~~~Lc fFso

I ~~~~~~Incomplete FusionFigure 46

INADEQUATE JOINT Inadequate penetration, lack of penetration or incomplete penetration arePENETRATION terms which refer to the faflure of the filler metal and base metal to fuse

and completely riW the root of the weld. The cause in groove welds isfailure to reach fusion temperature for the entire depth of the

toa bridging of the fller metal from one member to the other.Anoter cuseof an inadequate joint penetration is misaligmient or

improper fit up in a plate Or pipe joint. Misalignment is commonly called

H-iLow (Figure 47).

U ~~~~~~~~~~~~~~~~~~~~~~Lack of Penetration

Lack of Fusion

I~~~~~~~~~~~~~~~~~~~~~~~~~ako eerto

UNDERCUT Undercut is a surface type discontinuity easily detected by visual inspec-tion. Undercut is caused by the erosion of the base meta at the junc-tion of the base metail and the weld metal. Undercut in a groove weld Woccurs in the base metal at the toe of the weld. In pipe welds, undercutmay occur at the base meta adjacent to the weld root. Fillet welds maydisplay undercut in the base metal at the toe of the weld or the junctionIbetween the weld metail ind the base metal (Figures 48 and 49).

Undercut

~q Specified ContourI

overlap

Undercut and OverlapFigure 48

Overlap ~~~~~Undercut

Excessive PenetrationIOverlap, Undercut andExcessive PenetrationFigure 49I

OIVERLAP Overlap Is a protrusion of unflused weld metal beyond the toe ofthe weld. Visual detection Of overlap is not difficult because the leadingedge of the weld metail forms an abrupt angle to the base metal. TheItwo main causes of overlap are insufficient heat to fuse the weld metaland the base met2l together, and interference from rightly adheringoxides on the base metal surface which prevents fusion. A mechanicalnotch is formed at this point which wW aCt as a stress concen-Itration point under load (Figures 48 and 49.)

EXCESSIVE Icicles, melt through, drop through and grape are all terms as~sociatedIPIFNETRATION with excessive penetration. Excessive penetration produces a rough and

UNDERFILL Underfill is 2 depression of the face of the weld surface below thesurface plane of the adjacent base metal The weld joint is not completelyfilled in (Figure 50).

Underfill

CONCAVITY) ~~~~~~~~~~~~~~NnternaI Concavity

Underfill and Internal ConcavityFigure 50

INTERNlAL Intemnal concavity is 2 depresion in the center of the surface of a rootCONCAVITY (OT pass. Ir is a discontinuity associated with pipe welds and is commonly

CONCAVITY) ~~called suck back (Figure 50).

CONCAVE FACE Concave face is a profile type discontinuity similar to underfill butincludes the entire face of the wveld reinforcement. The contour of theconcave face is beow the plane Of the adjacent base metal for the entirecross section of the weld face (Figure 51).

Specified Contour ....... F.ce

Excessive Face Convexity Specified Contour

I~~~~~~~~~~~~~~~~~~~~ Excess Root Convexity

Concavity 2nd ConvexityFigure 51

CONVEXITY excessive weld metal deposit on the face or root of the weld. The height

]POROSIT'Y Porosity results when gas is entrapped in the solidlifying weld metwlTh~gas forms spherical or cylindrical gas pockets in the weld metal. Factorwhich contribute to the formation of' porosity are dint and moisturethe surface of the base metal and contaminatted or damp weldingcoonsutymablCes to the surface of' the weld metal or becomeH

entrapped below the surface as the metal solidifies. Porosity may occur atany lcocation in the weld metal. The dlifferent types of' porosity include:•Uniformly Scattered PorosityI

* Clustered Porosity* Linear Porosity* Piping or Wornm Hole Porosity

UNIFORMLY Uniformly scattered porosity may be found throughout a single pass weldSCATTERED or throughout several passes Of 2 multi-pass weld. The porosity isPOROSITY distributed evernly in the weld metal without any one concentrated areaof porosity (Figure 52).

CLUSTERED Clustered porosity Occurs as 2 concentration of porosity in a single areaPOROSITY of the weld metal. The clusters are separated by areas of no porosity oronly scattered porosity. Clustered porosity quite often occurs 2t the initi2-tion or termination of the weld joint (Figure 52).

LINEAR POROSITY Linear porosity is aligned along the joint boundary, along the root of theweld Or at the interbead boundary in a multi-PaM weld. Linear porosityweakens the weld join: because of Its aiinmuent with a.longitudinal axis of the weld. Linear porosity in the root pass Of apipe weld is called a hollow bead (Figure 52).

PIPING OR WORM Piping porosity and worn, hole porosity are terms denoting a cylindricalHOWD POROSITY or elongated type of porosity. Piping porosity in a fillet weld usually-extends from the root towards the surface of the weld without reachingthe surface (Figure 52).Visual iinspection of the weld surface may reveal some indications ofIporosity but most of the gas Is trapped below the surface as themetal solidifies. A volumetric nondestructive test such as radiography orultrasonic test is required to inspect (or subsurface porosity.

INCLUSIONS Inclusions are meta1lic: or nonmetallic impurities which are trapped in thesolidlifying weld metal. Inclusions are classified as metallic or nonmr llc

Cluster Scattered Linear

I Elongated Wor~~~~~~~~~~~~~~~~~~mhole

C ~~~~~Scattered SCluster

I ~~~~~~~~~~~~~~~~~~Wormhole Hollow Stranger Bead

* ~~~~~~ ~ ~~~~~~~~~~Linear _ _

H ~~~~Types of PorosityFigure 52

I~~~~~~~~~~~~~~~~~~~~~~lgLn

METALLIC Metallic Inclusions are usually composed of tungsten particles trappedINCLUSIONS in the solidifying weld metal. Particles of tungsten may be transferred

into the weld deposit from the tungsten electrode when using the gaStungsten arc weld process (GTlAW). The tungsten particles may bedetected visually on the weld surface due to a difference in the texturebetween the weld metal and tungsten. Most tungsten inclusions aresubsurface and are readily detected by radiography. Metallic inclusions are

not limited to tungsten but tungsten is fth most prevalent (Figure 53).

NONMETALLIC Slag inclusions are nonmetallic solids or oxides which are trapped In theINCLUSION weld metal as it solidifies. They can become entrapped in the weld metal

or between the weld metal and the base metal. Slag Is a product ofthe electrode coveting or fluxes used to shield the molten meta~lfrom atmospheric contamination. The slag is fighiter in weight thanIthe weld metal and tends to float to the top of the molten weld metalunless it is trapped. The slag is removed from the surface after the weldmetal has solidified. Slag must be removed between passes on a multi-pass weld. Slag is dark in color and has a glass like tenture.when welding by the shielded metal arc welding process, using coatedelectrodes, the Sl2g may be forced below the surface of the molten metalthe stirring action of the arc. The slag may also flow ahead or the arcIcausing the molten metal to be deposited over it. Sharp notches andjoint boundaries between passes may also trap slag under the moltenweld metal of the next pass (Figure 53).

Nonmetallc inclusions are generally considered a subsurface discontinuityand are detectable with radiography. Slag sometimes forms lines whichare called wagon tracks on a radiograph.

WELD METAL Weld metal cracking is the type of discontinuity that most seriouslyCRACKS ~~~affects the soundness of the weldrnent. Cracks occur in the welmel

and/or base metal when localized stresses exceed the materlialstrength. Cracks are generally associated with other discontinuities in theweld or base metals, with mechanical notches, with residual stresses andoften with hydrogen embrittlement.ICracks can be classifled as either hot or cold cracks. Hot cracksdevelop at elevated temperatures. They usually form as the metalsolidifies at temperatures near the melting point and propagate along thegrain boundaries. Cold cracks develop after solidIfication IsIcomplete. Cold cracks are sometimes called delayed cracks; and may beassociated with hydrogen embrittlement. Cold cracking may propagateeither intergranularly or transgranularly. Cracks are usually classified byItheir location and direction.

LONGITUDINAL Longitudinal cracks run parallel to the length of the weld. They mayCRACKS be found anywhere in the weld metal, heat affected zone or bare metal.

Longitudinal cracks are most likely to be formed at the center line of theweld or at the toe of the weld in the heat affected zone (Figure 54).

Toe Crack

Longitudinal Crack ~ ~~~~Transverse Cracks

I~ ~~~neta rc

I~~~~~~Ro rc

Cracks, Arc Strikes and Weld SpatterI ~ ~~~In Welded jointsFigure 54

VISUAL WELD INSPECTIONN

LOCATION: EIELSON AFB DFC UMR

INSPECTOR: Harland B. WebberI

Tank 40 (6258)

WELD TYPESEAM DEFECT LOCATION3

V-i GOUGE 6 ACROSS3 ADJACENT

V-2 GOUGE 6 ACROSSI5 ADJACENT

V-3 GOUGE 4 ACROSS6 ADJACENTI

V-4 GOUGE 5 ACROSS4 ADJACENT

V-5 GOUGE 2 ACROSSI1 ~2 ADJACENT

V-6 GOUGE 3 ACROSS4 ADJACENTI




V-10 GOUGE 2 ACROSS

V-11 ~~3 ADJACENTV-Il GOUGE 1 ACROSS

76 Total Gauges/Defects3

OTHER:

HEIGHT LOCATION DEFECT

54" RIGHT OF V-4 3-1/2" GOUGEI84" LEFT OF V-5 3" GOUGE114" RIGHT OF V-6 4" GOUGE60" LEFT OF V-8 3" GOUGEI60" RIGHT OF v-s 2-1/2" GOUGE86" LEFT OF V-9 1" GOUGE30" LEFT OF V-lII "GU

7 Total Gauges

/AT48

3 ~~~~~~~~VISUAL WELD INSPECTION

LOCATION: ELEL SON AFB DFC UMR

INSPECTOR: Harlind B. Webber

Tank 39 (6259)

WELD TYPESEAM DEFECT LOCATION

V-1 GOUGE 5 ACROSS6 ADJACENT3 ~~~~V-2 GOUGE 2 ACROSS6 ADJACENT


V-4 GOUGE 5 ACROSS5 ADJACENT3 ~~~~V-5 GOUGE 1 ACROSS4 ADJACENT

V-6 GOUGE 3 ACROSS* ~~~~~~~~6 ADJACENT


V-8 GOUGE 5 ACROSS5 ADJACENT1 WELDED OVER PLUG (.3 HOLES)I ~~~~V-9 GOUGE 6 ACROSS6 ADJACENT

V-10 GOUGE 4 ACROSS

5 ADJACENT

6ADJACENT

104 Total Gouges/Defects3 ~~~OTHER:

HEIGHT LOCATION DEFECT

27" LEFT OF V- I 3" GOUGE96" RIGHT OF V-i 2-1/2" GOUGE3 ~~~44" LEFT OF V-2 4" GOUGE72" RIGHT OF V-2 3" GOUGE60" LEFT OF V-3 3" GOUGE52' RIGHT OF V-3 4" GOUGE84" LEFT OF VA4 2" GOUGE36" RIGHT OF VA4 3-1/2" GOUGE

Page Two3

VISUAL WELD INSPECTION

LOCATION: EIELSON AFB DFC UMR

INSPECTOR: Harland B. WebberI

Tank 39 (6259)3

106" LEFT OF V-5 3" GOUGE136" LEFT OF V-6 4" GOUGE115" RIGHT OF V-6 3-1/2" GOUGE96" RIGHT OF V-7 3" GOUGE40" LEFT OF V-S 3" GOUGE60" LEFT OF V-9 3" GOUGE56" RIGHT OF V-9 3" GOUGE382" LEFT OF V-10 4" GOUGE40" RIGHT OF V-10 3" GOUGE20" RIGHT OF V-11 4" GOUGE

18 Total Gouges/Defects

VISUAL WELD INSPECTION

DEFECT SUMMARY

I ~~LOCATION: EIELSON AFB

INSPECTOR: Harland B. Webber

Tank 38(6257)

WELD TYPE LOCATIONI ~~SEAM DEFECT

I ~~V-1 GOUGE 6 ACROSS2. ADJACENT3 ~~~~~~UNDERCUT ADJACENT

V-2 GOUGE 2 ACROSS3 ~~~~~~~~~6 ADJACENT

V-3 GOUGE 5 ACROSSI. ~ ~~~~~~~~2 ADJACENTV-4 GOUGE 3 ACROSS

6 ADJACENT

V-5 GOUGE 5 ACROSSI ~ ~~~~~~~~2 ADJACENT

V-6 GOUGE 2 ACROSSU ~ ~~~~~~~~3 ADJACENT

V-7 GOUGE 5 ACROSSU ~ ~~~~~~~~6 ADJACENT

V-8 GOUGE 6 ACROSSI ~ ~~~~~~~~6 ADJACENT

V-9 GOUGE 4 ACROSSII ~~~~~~~~~4 ADJACENT


IV-i1 GOUGE 6 ACROSS 4

6 ADJACENT

IOTHER:

IHEIGHT LOCATION DEFECT

21" RIGHT OF V-4 3" GOUGE I.33" RIGHT OF V-5 4" GOUGE3

III

IItIIII

0I

I

ENTERPRISE ENGINEERING, INC.

WELD REJECT AUDIT

PROJECT: Structural Integrity Evaluation -AG Tanks* ~~~~~Defense Fuel Region -Alaska

LOCATION: Eielson AFB

5 ~~~CONTRACT: 90-C-1022

PROJECT NO: 90-1308

I ~~RADIOGRAPHER: Quality Inspection and TestingFairbanks, AK

REPAIR CONTRACTOR: None

TANK 38 (6257)

ORIINA REEC RESHOOT (R-1) RESHOOT (R-2) STATUS3 ~~~~AREA DATE jDTJACRJ DATE ACC/ REJ

1V-1 0-16 9/24tV-i 16-32 9/24I ~ ~1V-1 48-64 9/24, 1~~V-2 16-32 9/241V-2 32-48 9/241V-2 48-64 9/241V-2 64-SO 9/241V-3 48-64 9/241V-3 80-96 9/24U ~ ~1V-4 0-16 9/241H-4 16-3 2 9/241V-4 48-64 9/241V-4 80-96 9/24N ~~1V-6 16-32 9/24

1V-6 20-96 9/241V-7 80-16 9/24

1V-7 16-32 9/243 l~~V-7 48-64 9/241V-7 64-80 9/241V-7 80-96 9/241V-8 0-16 9/241V-8 16-32 9/24U ~~1V-8 32-48 924

I ~~1V- 480-764 9/241V-9 0-160 9/24

~~ t~V-8 80-96 9/24

lV-t0 48-64 9/24

1V-11 32-48 9/24

TANK 38 (6257) cornt.

LORIGINAL REJECT RESHOOT (R-i) RESHOOT (R-2) STTU

JOINT AREA DATE DATE JACC/REJ DATEJACC/REJ _ __

2V-3 0-16 9/242V-8 0-16 9/242V-10 0-16 9/24I2V-11 0-16 9/241H-4 32-48 9/24IH-5 32-48 9/241H-6 3 2-48 9/24~ ~ ~ ~~~IH-7 32-48 9/241H-8 3 2-48 9/241H-9 32-48 9/241H-10 32-48 9/24I1H4-11 32-48 9/241H-12 32-48 9/241H-12 32-48 9/241H-14 32-48 9/24~~~~~~1H4-15 32-48 9/241H-14 32-48 9/241H4-17 32-48 9/241H-18 32-48 9/24I1H4-19 32-48 9/24

1H4-20 32-48 9/241H4-21 32 -48 9/241H-22 32-48 9/24


WELD REJECT AUDIT

PROJECT: Structural Integrity Evaluation - AG Tanks* ~~~~~~Defense Fuel Region -Alaska


3 ~~~~CONTRACT: 90-C-1o22

PROJECT NO: 90-1308

I ~~RADIOGRAPHER: Quality Inspection and TestingFairbanks, AKI ~~REPAIR CONTRACTOR: None

TANK 40 (6258)

ORIGINAL REJECT] RESHOOT (R-1) RESHOOT (R-2) STATUSAREA DATE IDATE) ACC/REJ DATE JACC/REJ ___

1V-2 80-96 9/273 ~~1V-4 0-16 9/271V-4 80-96 9/271V-5 80-96 9/271V-6 80-96 9/27

* ~~~V-8 80-96 9/271v-9 8-6 92

1V-10 16-32 9/27IV-10 80-96 9/271V-11 16-32 9/272V-2 0-16 9/273 ~~2V-5 0-16 9/272V-6 0-16 9/271H1-3 32-48 9/271H1-4 32-48 9/27I ~ ~1H-5 32-48 9/271H-6 32-48 9/271H-7 32-48 9/273 ~~1H1-8 32-48 9/271H1-9 32-48 9/271H1-10 32-48 9/273 ~~1H-11 32-48 9/271H-12 32-48 9/271H1-13 32-48 9/271H-15 32-48 9/27I ~ ~1H-17 32-48 9/271H-18 32-48 9/271H1-19 32-48 9/27

1H-20 32-48 9/271H-21 32-48 9/27

1H-22 32-48 9/27


WELD REJECT AUDIT

PROJECT: Structural Integrity Evaluation - AG TanksDefense Fuel Region -Alaska


CONTRACT: 90-C-1022I

PROJECT NO: 90-1308

RADIOGRAPHER: Quality Inspection and TestingFairbanks, AK

REPAIR CONTRACTOR: NoneI

TANK 39 (6259)

ORIGINAL REJECT PRESHOOT (R-1) JfRESHOOT (R-2) STATUS

AREA DATE [DATE ACC/REJ DATE ACC/REJ ___U

1V-2 16-32 9/281V-8 64-80 9/281V-8 80-96 9/2811V-10 16-32 9/282V-5 0-16 9/282V-7 0-16 9/282V-8 0-16 9/281H-1 32-48 9/281H-2 32-48 9/28I1H-3 32-48 9/281H-4 32-48 9/281H-5 32-48 9/281H-8 32-48 9/28I1H-9 32-48 9/281H1-11 32-48 9/281H-12 32-48 9/28I1H-13 3 2-48 9/28

1H-14 32-48 9/281H-15 32-48 9/281H-16 32-48 9/28I1H-17 32-48 9/281H-l8 32-48 9/281H-19 32-48 9/28I1H-20 3 2-48 9/281H-21 32-48 9/28

1H-22 32-48 9/28I

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OFO.A. oaz rZeFvAfzREPAIR TANK FLOORS

ATE-6 FUEL COMPLEX

EIELSON AFB, ALASKA

1.9 The work required for this task order shall includeproviding all services, manpower, materials, and equipmentnecessary to satisfactorily accomplish the tasks set forthbelow. All work will be as directed and scheduled by theGovernment.

2.0 fi9 fl The task order shall include providing base bidU ~~~work as indicated below, plus priced options for additionalwokthat may be determined by the Government.3.0 BASIS OF WORK: All work shall be performed as indicatedherein. The Government shall determine the total number ofpriced option units for each work item during the tankinspection.

AD4.0 TAW 9 EWR TOTNS):

4.1 MAULIMh, Provide lump sum price to perform the followingitems:

a. Obtain hot work permit as specifiled.

b. Remove present epoxy coating system at each floor weldarea. Removal shall be by sandblasting or mechanicalmeans. Contractor shall note that it is not known ifpresent coating contains lead. Removal means shallproceed based upon the assumption that the coatingcontains lead. At the conclusion of coating removal,all sandblast grit and coating shall be removed fromtank and stored ifl covered containers not to exceed 55gallons in size. Turn over drums to the Government fordisposal.

c. Repair floor weld at locations marked on existing tankN ~~~floors. At the conclusion of welding, test welds usinga flat vacuum box and weld seam soap testing solution.,Repair any defects found and retest until no leaks areI ~ ~~found.

* 4.2 PRICED OPTIO WORK: Provide individual lump sum price for* ~~the following items:

a. Application of epoxy repair coating system on Tank 38.

91-1308.12I -H! ~~~~~~~-1-

b. Application of epoxy repair coating system on Tank 39.5.0 TANK INFORM.T~q

5.1 TANK SIZE: Tanks were erected in the 1950's. They arecone-roof of welded steel construction. They are 74'-3"# in5.2 diameter and 40' high.

5.2 Prior to the contractors beginning work, tanks will becleaned and gas-freed by the Government. this will includeMarine Chemist certification that the tank is "Safe forEntry".I

6.0 SCHEDULE: Tanks are available at this time.7.0 Submit the following:

7.1 2M'TLI LSi Welder Personnel: Submit certificationthat all ~weolder Personnel are certifiled in accordance withANSI/ASME BPV'-IX.

8.0 9M&MnL.8.1 Tank Certification of Safety: obtain a copy of

certification from an NFPA certified Marine Chemist statingthat the tank is safe f or hot work and that specialaprecautionary measures have been taken for workers to enterthe tank to perform the work. original Governmentcertificate (safe for entry) is on site.8.2 Contractor Testing: All Contractor tests performed whenthe services of a certified Marine Chemist are not requiredshall-be performed by a contractor supplied CompetentPerson. Qualifications of the "Competent Person" means onewho is capable of identifying existing and predictableIhazards in the surroundings of working conditions inaccordance with referenced documents which are hazardous,or dangerous to employees, and who has authorization totake prompt corrective actions to eliminate them.I

1.0 SAFETY PRECAUTIONS: Conform to API STD 2009 for fire andexplosion hazard areas. Throughout the work, the tankshall be maintained in a gas-free and "safe for hot work"condition. Follow all procedures specified by the MarineChemist's certificate when hot work is provided.2.0 Coating Removal: Abrasive blast not less than 2 inchesIbeyond weld seam to commercial standard SSPC SP' 6.

91-1308.12-2-

3.-0 Weld Repair: Grind out weld to remove existing material9 ~~~and slag. Provide fillet weld to repair defects. Vacuumbox weld repair to determine adequacy of repair. Repairall defects by regrinding and rewelding.

4.0 Coating Repair: After acceptance of weld repairs, and whendirected by the Government, provide epoxy repair coatingsystem. Remove any flash rusting' and feather edge ofexisting coating system using mechanical-means. Providelow temperature, fast curing epoxy polyamide repair coatingsystem and apply in accordance with manufacturer* ~~~directions.

4.1 The following repair systems have been identified asacceptable. Systems by other manufacturers of similarcapability may be submitted to the Government fdr.consideration.

Devoe Coatings: Bar-Rust 236 Multi'purpose Epoxy coatingsystem.

Tnemec: Series 161, Tneme-Fascure4.*2 Requirements: coating system shall be 2 component epoxypolyamide system formulated f or fast curing under coldsurface temperatures. Coating shall be capable of hardcuring with surface temperatures of 3507 in not more thana ~~~20 hours.

-~~~~~~~~~~~~~~~~~~~~~W ~5.0 Application: After removing flash rusting, solvent wipesurface to remove all remaining moisture. Allow- to- dry 5to 10 minutes. Apply first coat of system to a.b.~ry 'filmthickness of 5 mils minimum. As soon as first coat cures,apply second (final) coating system to a dry film 'thfcknessof 5 mils minimum.

/AT37

I~~~~~~~~~9-381-3-~~~~~~~~~~~~~

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