Attachment J.3 JBER tank 743 IN API 653 FINAL 2018.pdf

ACOE CONTRACT W911KB-15-D-0001, DELIVERY ORDER W911KB18F0106

TANK 743 (FACILITY NO. 743)

API 653 IN-SERVICE INSPECTION AND

SUITABILITY FOR SERVICE EVALUATION

FINAL REPORT

(PRE-REPAIR)

Joint Base Elmendorf-Richardson (JBER), Alaska

November 2018

Date of Inspection: July 2018

Contract Agency

U.S. Army Engineer District, Alaska P.O. Box 6898 Elmendorf AFB AK 99506-6898

Prepared By

2525 Gambell Street, Suite 200 Anchorage, AK 99503

David A. Stchyrba, P.E.

API 653 Certificate No. 27187

Submitted By

Kelly B. Waring, P.E.

Principal, API 653 Certificate No. 21992

EEI Project No. 9325

Page Intentionally Left Blank

SUITABILITY FOR SERVICE TESTAMENT

TANK 743 (FACILITY NO. 743)

Enterprise Engineering, Inc. (EEI) has completed an in-service external integrity inspection and suitability for service evaluation of Tank 743 at JBER, Alaska. The inspection was performed July 18, 2018. The inspection was performed in accordance with the applicable criteria of API Standard 653, UFC 3-460-01, UFC 3-460-03, and the Statement of Work.

This report provides inspection findings, tank suitability for service evaluation, conclusions, and recommendations for repair. Recommendations for continued long-term service are also provided.

EEI recommends the next API 653 external in-service inspection be scheduled no later than July 2023 (5 years from 2018 inspection), or sooner if a change in condition has occurred.

EEI recommends the next API 653 internal out-of-service inspection be scheduled no later than July 2033 (20 years from 2013 out-of-service inspection), or sooner if a change in condition has occurred.

In accordance with API Standard 653 and ADEC Regulation 18AAC75, this report satisfies the requirement for an in-service, integrity inspection and as such, should remain available as a historical record for future reference.

I hereby acknowledge that being familiar with the provisions of API Standard 653, the inspection and evaluation was performed in accordance with the provisions of API Standard 653 and good engineering practices, and with the exercise of usual and customary care.

November 7, 2018e David A. Stchyrba, P.E. Date API 653 AST Inspector Certificate No. 27187

This tank inspection has determined that mandatory repairs are not required. Tank 743 is suitable for continued service.

Tank 743 – API 653 Inspection TABLE OF CONTENTS JBER, Alaska November 2018 EEI Project No.: 9325

TABLE OF CONTENTS

Page

SUMMARY

Scope General

INSPECTION ASSESSMENT

Hydraulic Integrity Structural Integrity Next Inspection

REPAIR ITEMS

Standard of Care

COATING SYSTEM

Coating Requirements

SUITABILITY FOR SERVICE EVALUATION

Corrosion Rates Tank Shell Corrosion Rates Hydraulic and Structural Integrity Summary

CLOSURE

Conclusions EEI Project Team

APPENDICES

Tank Inspection Data Sheet and Evaluation Items ...................................................................... Appendix A Assessment of Compliance with Military Criteria ....................................................................... Appendix B Non-Destructive Examination (NDE) and Evaluation Criteria ................................................... Appendix C Tank Drawings ............................................................................................................................. Appendix D Tank Photographs ........................................................................................................................ Appendix E NDE Results................................................................................................................................. Appendix F Calculations.................................................................................................................................. Appendix G

Tank 743 – API 653 Inspection Page 1

EEI Project No.: 9325

TANK 743

API 653 TANK INSPECTION

SUITABILITY FOR SERVICE EVALUATION

Joint Base Elmendorf-Richardson (JBER), Alaska

SUMMARY

Scope

Enterprise Engineering Inc. (EEI) has been retained to perform an in-service external integrity inspection of Tank 743 at JBER, Alaska. The inspection was performed July 18, 2018.

The inspection was performed in accordance with the applicable portions of API Standard 653, UFC 3- 460-01, UFC 3-460-03 and the Statement of Work. The API 653 criteria were followed in terms of procedure and evaluation to the greatest extent possible. Inspection findings and recommended repairs are provided below.

The scope of this project is to determine the structural and hydraulic condition of the tank, determine suitability for service, provide written recommendations for repairs, and develop recommendations for long-term service based on visual inspection and non-destructive examination (NDE).

General

Tank 743 is a field erected, vertical aboveground storage tank. The tank was fabricated and erected in 2000. The tank is 43 feet, 6 inches in diameter and 42 feet, 3 inches high. It is of welded construction with butt-welded shell plates and lap welded floor and roof plates. The tank floor is cone down with a center sump. The tank has a fixed roof supported by a beam that spans the width of the tank. The tank is equipped with an aluminum honeycomb floating pan. The nominal shell capacity is 10,000 Bbls and the tank is currently in JP-8 service.

INSPECTION ASSESSMENT

The Appendices in this report include a comprehensive table identifying tank features with findings and conclusions as appropriate. The Appendices also contain numerous tables with full reporting of data taken. The following discussion only addresses key integrity issues.

Tank 743 is considered suitable for continued service. The following are significant findings of the inspection.

Hydraulic Integrity

Hydraulic integrity is the ability of the tank to hold product without compromise to the boundaries of the floor and shell.

Visual inspection of the shell and roof found no holes or indications of leaks. As the tank was in service at the time of the inspection, the condition of the floor is unknown.

The in-service inspection and evaluation found no conditions that affect the hydraulic integrity of the tank.

Tank 743 – API 653 Inspection Page 2

EEI Project No.: 9325

Structural Integrity

Structural integrity is the capability of the tank to remain freestanding, with or without product, under the conditions of its design basis. Structural attributes include the floor, shell, roof, and their attachments.

Ultrasonic inspections of the shell were performed on the first course and on each course up the exterior spiral stair. From interpretation of ultrasonic thickness (UT) readings recorded, only minor metal loss due to corrosion was observed.

The in-service inspection and evaluation found no conditions that affect the structural integrity of the tank.

Next Inspection

API 653 requires an in-service inspection be performed every 5 years or RCA/4N years, whichever is less. RCA is the remaining corrosion allowance of the shell (i.e. the difference between the minimum measured shell thickness and the minimum shell thickness in mils) and N is the shell corrosion rate in mils per year. When shell corrosion rates are unknown, API 653 requires the in-service inspection interval not to exceed 5 years.

EEI recommends that the next external in-service inspection be scheduled no later than July 2023 (5 years from this 2018 inspection), or sooner if a change in condition has occurred.

The 2013 inspection report was reviewed with respect to the interval to the next out-of-service inspection.

The Alaska Department of Environmental Conservation (ADEC) requires an inspection per the requirements of API 653. Section 6.4.2.2 of of API 653 requires the interval until the next internal inspection be determined using corrosion rate procedures or Risk-Based Inspection (RBI) procedures.

When corrosion rate procedures are used, the interval shall not exceed 20 years for tanks without a release prevention barrier or 30 years for tanks with a release prevention barrier. Since an RBI assessment was not included in the scope of the 2013 inspection, the interval until the next out-of-service inspection was determined suing corrosion rates and the data of the previous out-of-service report.

EEI recommends the next API 653 internal out-of-service inspection be performed no later than July 2033 (20 years from the 2013 inspection). The next out-of-service inspection should be performed sooner if a change in condition or a change in service occurs.

REPAIR ITEMS

Based upon the API field inspection, engineering judgment and knowledge of funding practices, recommendations developed are listed below as required (mandatory), recommended (non-mandatory), recommended for long term serviceability, and recommended for non-tank inspection items. Refer to Appendix B, “Assessment of Compliance with Military Criteria” for comprehensive comments and recommendations of the tanks compliance with military criteria.

Standard of Care

All repairs shall strictly meet the requirements of API 650 and API 653 regarding material, welding procedures and qualification of welders, non-destructive examination (NDE) of welding and testing requirements. Obtaining hot work permits and developing the appropriate hot work procedure for the tank floor is the responsibility of the repair contractor and shall consider the tank has been in petroleum fuel service. The provisions of API 2207 “Preparing Tank Bottoms for Hot Work” shall be considered.

Tank 743 – API 653 Inspection Page 3

EEI Project No.: 9325

REQUIRED REPAIRS (MANDATORY)

Findings Repair Photo Mandatory repairs are repairs that are critical to the hydraulic and structural integrity of the tank and may require removing the tank from service.

No mandatory repairs were identified.

RECOMMENDED REPAIRS (NON-MANDATORY)

Findings Repair Photo The repairs listed below are not mandatory per API 653 or for structural and hydraulic integrity of the tank but should be performed if approved by the Government for the long-term preservation and integrity of the tank.

1. The body cavity relief (BCR) on the shell valve for the fill, issue and low fuel nozzles relieve towards the tank.

Any failure of the small diameter line or valve would result in the inability to stop the leak without draining the tank. This is an integrity risk.

Note, it is acknowledged that there is an ice shield over the piping that would protect it from falling debris.

Re-pipe the BCR hydraulic tubing so that it is connected to the pipe side valve boss instead of the tank side.

Note: The valve at the water draw-off is piped in a similar manner and includes LR/DTR. However, it is the opinion of EEI that the risk is much lower and that repair is not warranted since the components appear to be constructed from heavy wall hydraulic tubing and are not prone to damage.

2. The roof manway and the four combination vent/inspection hatches are equipped with braided steel ground straps. The straps are tearing and will eventually separate.

Replace the ground straps.

3. Black moss was observed on the roof of the tank.

Remove the moss by power washing or other suitable non-mechanical means.

Note: Since the material will travel down the tank shell during cleaning, it is recommended to power wash the entire exterior of the tank.

Tank 743 – API 653 Inspection Page 4

EEI Project No.: 9325

RECOMMENDED REPAIRS (NON-MANDATORY)

Findings Repair Photo

4. Minor coating failure and corrosion was observed on the shell valves.

Remove the coating from the affected areas, clean and recoat to prevent further degradation.

5. Coating failure and corrosion was observed on the pipe support base plates for the piping within the containment area.

Remove the coating from the affected areas, clean and recoat to prevent further degradation.

6. The exterior piping is attached to concrete pipe supports. Concrete deterioration was observed on the corners of several pipe supports.

Repair the deteriorated concrete to maintain the integrity of the supports.

7. Electrical conduit was installed and supported from the issue piping.

Wood was utilized for spacing material. NFPA prohibits the use of combustible materials within a secondary containment area.

Remove the wood spacers and provide spacers constructed of a non-combustible material.

8. The exterior pipe supports include non-metallic saddles. At multiple locations, moss was observed growing in the space between the piping and the saddle.

Remove the moss.

Tank 743 – API 653 Inspection Page 5

EEI Project No.: 9325

RECOMMENDED REPAIRS (NON-MANDATORY)

Findings Repair Photo

9. The tank is equipped with two standpipes as part of the leak detection system. Water was observed within the standpipes.

Drain the water from the standpipes. Monitor the standpipes for fluid accumulation as part of routine maintenance.

Note: For a more long-term solution, provide a foundation drip ring per section 5.4.5 of API 650.

It is the opinion of EEI that water is infiltrating the sand cushion and migrating to the leak detection standpipes.

10. Moss and plants were observed growing within the gravel ballast of the containment dike.

Remove all of the organics.

Note: AFPET has previously commented that the removal of organics is a base general housekeeping/maintenance requirement.

RECOMMENDED REPAIRS FOR LONG TERM SERVICEABILITY

1. Program the tank for the next API 653 in-service inspection no later than July 2023 (5 years).

2. Program the tank for the next API 653 out-of-service inspection no later than July 2033 (20 years from 2013 inspection).

3. Test all level alarms and switches as part of ongoing maintenance.

COATING SYSTEM

Coating Requirements

Coating materials and application requirements for type and location of repair items shall be in accordance with the applicable UFGS specifications.

SUITABILITY FOR SERVICE EVALUATION

Corrosion Rates

Corrosion rates for the tank shell and roof were calculated using thickness measurements that were obtained during the inspection and are as follows:

Shell: 0.00119 inches per year Roof: Negligible – Plate thickness is within mill tolerance

The corrosion rates were calculated using an assumed original metal thickness and a 2000 year of construction.

Tank 743 – API 653 Inspection Page 6

EEI Project No.: 9325

Tank Shell Corrosion Rates

API 653 4.3.1.3 states that tank shell corrosion can occur in many forms and varying degrees of severity and may result in a generally uniform loss of metal over a large surface area or in localized areas. The corrosion rate for the tank shell was calculated based on the original nominal shell thickness and the minimum recorded shell thickness during the inspection.

UT readings of the shell were obtained at the bottom shell course and accessible locations from the spiral stairs at the upper shell courses. The shell plate thickness will not be reduced below the minimum value at a 5-year inspection interval.

Hydraulic and Structural Integrity Summary

The following table summarizes the hydraulic and structural integrity of the tank:

HYDRAULIC AND STRUCTURAL INTEGRITY

Evaluation Item Findings Comments

Foundation Tank sits on a concrete ringwall. The tank passes API 653 criteria for levelness and differential settlement.

Acceptable

Floor Projection

No conditions were found that affect the hydraulic structural integrity of the floor projection.

Acceptable

Shell Visual inspection of the accessible shell joints found no relevant indications. A pit survey was conducted and no locations were identified for repair.

Acceptable

Roof Spot ultrasonic testing of the roof plates found no noticeable thinning of the plates.

Acceptable

Internal Fluid Pressure

Hoop stresses by internal fluid pressure pass API 653 criteria. Acceptable

Hydrostatic Test

Shell is adequate to resist the internal fluid pressure caused by a full height hydrostatic test with water.

Acceptable

Brittle Fracture The API 653, Section 5, Figure 5.1, Brittle Fracture Considerations has been evaluated with the following findings:

1. Does the tank meet API 650(7th edition or later, 1980): Yes, constructed in 2000.

2. Has a prior hydrotest been performed demonstrating fitness:

Unknown, but likely when the tank was constructed.

3. Is the tank shell thickness < 0.5 inch: Yes.

4. Does the tank operate at metal temperature above 60 deg F?:

No.

5. Is the tank membrane stress below 7 ksi?: No.

6. Tank steel exempt per API 650, Figure 4.1 or API 653 Figure 4.1:

Yes.

7. Tank full at lowest one day temperature per API 650 Figure 4.1:

Unknown.

Since the tank was designed and constructed to API 650, 10th Edition, and shell thickness is less than 0.5 inches, the tank does not fit the API 653 at-risk profile for brittle fracture failure.

Tank 743 – API 653 Inspection Page 7

EEI Project No.: 9325

HYDRAULIC AND STRUCTURAL INTEGRITY

Evaluation Item Findings Comments

Seismic Evaluation

The Tank is anchored. Seismic calculations were performed in accordance with API 650 Appendix E. It was found that the tank anchors are adequate and that the shell stresses are within limits at the current fill height of 37 feet 11 inches.

Calculations were performed utilizing the specific gravity for JP-8 (S.G.

= 0.84), a ringwall foundation, seismic parameters Ss = 1.50, S1 = 0.68, an importance factor of 1.15.

Acceptable

Wind Evaluation

A wind analysis was performed per API 650, Section 5.11. Calculations were performed using an importance factor of 1.15 and a wind velocity of 100 mph.

The evaluation determined that an empty tank is stable and not at risk of overturning or sliding.

Acceptable

CLOSURE

Conclusions

Based on the extent of this inspection and lack of mandatory repairs, Tank 743 is considered suitable to remain in service.

EEI Project Team

Site Team

David A. Stchyrba, P.E. Structural Engineer, Inspector of Record API 653 AST Inspector Certificate No. 27187

Joseph G. Miller Mechanical Integrity Specialist

Daniel R. Mahoney, E.I.T. Design Engineer, Tank Technician

Support Team

Stacy M. Kaplan-McMillan Project Manager

Kelly Waring, P.E. Technical Specialist, QA Review API 653 AST Inspector Certificate No. 21992

APPENDIX A

TANK INSPECTION DATA SHEET AND

EVALUATION ITEMS

Tank 743 – API 653 Inspection APPENDIX A, Tank Summary Sheet JBER, Alaska EEI Project No.: 9325

DLA ENERGY TANK CMP CONDITION FORM

TANK INSPECTION SUMMARY SHEET

Tank Location (Site Code): Joint Base Elmendorf-Richardson, Alaska (JBER) Tank No.: 743

Facility No.: 743 Inspection Date(s): July 18, 2018

Type: Vertical Above Ground Storage Tank Type of Inspection: Internal w/ Suitability for Service Evaluation

Contract Number, Delivery Order: W911KB-15-D-0001, W911KB18F0106 Prime Contractor Name: Enterprise Engineering, Inc.

Inspector, Certificate #: David A Stchyrba, P.E.

API-653 AST Inspector Certificate No. 27187

Inspection Company: Enterprise Engineering, Inc.

2525 Gambell Street, Suite 200 Anchorage, AK 99503

(907) 563-3835

Manufacturer, Date, Design Standard: Morse Construction Group, 2000, API 650 10th Ed, Addendum 4, Appendix A

Diameter: 43'-6" Shell Height: 42'-3"

Product, Specific Gravity: JP-8, 0.84 Design Pressure / Temperature: Atmospheric / Unknown

Gross Capacity / Nominal Capacity: 10,073 Bbls / 10,000 Bbls Safe Fill Height / Design Liquid Level: 32’-10” (Per Facility) / 38’-0” (Name plate)

GPS Latitude & Longitude: 61 Deg 15’ 32.63” N, 149 Deg 49’ 28.40” W (Source – Google Earth) Foundation Configuration: Concrete Ringwall

Shell Configuration: Butt Welded, 5 courses Roof: Fixed, self-supported cone up roof.

Floating Pan: Present, Aluminum Floating Pan Cathodic Protection: Impressed Current

Stilling Wells: Yes Last Inspection (Type, Date): Out-of-Service, October 2013 by Enterprise Engineering, Inc.

Last Coated Internally (Product): 2000 at the time of construction, product is unknown.

Last Coated Externally (Product): 2000 at the time of construction, product is unknown.

INSPECTION RESULTS

Is removal from service required?: No

Deficiencies identified as mandatory repairs: No Deficiencies identified as recommended repairs: Yes, see paragraph titled “Repair Items” in body of report.

Deficiencies identified as long term repairs: Yes, see paragraph titled “Repair Items” in body of report.

Next Scheduled API Inspections (Type, Date): API 653 In-Service: July 2023 (5 years from 2018 inspection)

API 653 Out-of-Service: July 2033 (20 years from 2013 inspection)

ADDITIONAL ITEMS

Change in Service: None

As-Built Drawings, Specifications: None available

API STANDARD 653

TANK IN-SERVICE INSPECTION CHECKLIST

Tank 743 – API 653 Inspection APPENDIX A, Page 1

EEI Project No.: 9325

Tank No.: 743 Prepared by: DRM

Location: JBER Date: 8/01/2018

Item Completed Comments

C. 1.1 FOUNDATION

Measure foundation levelness and bottom elevations (see Appendix B for extent of measurements)

X Tank 743 is relatively level. The maximum measured differential between max and min elevations is 0.03 feet

C. 1.1.1 Concrete Ring

a. Inspect for broken concrete, spalling, and cracks, particularly under backup bars used in welding butt-welded annular rings under the shell.

X

No defects observed.

b. Inspect drain openings in ring, back of water draw basins and top surface of ring for indications of bottom leakage.

No indications of bottom leaks were observed.

c. Inspect for cavities under foundation and vegetation against bottom of tank. X None observed.

d. Check that runoff rainwater from the shell drains away from tank. X Drainage around the tank appears to be adequate.

e. Check for settlement around perimeter of tank. X Tank 743 bears on a concrete ring wall.

No settlement was observed.

C.1.2 Asphalt

a. Check for settling of tank into asphalt base which would direct runoff rain water under the tank rather than away from it.

N/A

b. Look for areas where leaking of oil has left rock filler exposed, which indicates hydrocarbon leakage.

C.1.1.3 Oiled Dirt or Sand

Check for settlement into the base which would direct runoff rain water under the tank rather than away from it.

There was no indication of settlement.

C. 1.1.4 Rock

Presence of crushed rock under the steel bottom usually results in severe underside corrosion. Make a note to do additional bottom plate examination (ultrasonic, hammer testing, or turning of coupons) when tank is out of service.

Backside corrosion will be checked during the next internal inspection.

C.1.1.5 Site Drainage

a. Check site for drainage away from the tank and associated piping and manifolds. X Drainage is adequate.

b. Check operating condition of the dike drains. X The drain valve was not actuated.

C.1.1.6 Housekeeping

Tank 743 – API 653 Inspection APPENDIX A, Page 2

EEI Project No.: 9325

Tank No.: 743 Prepared by: DRM

Inspect the area for buildup of trash, vegetation, and other flammables buildup. X

Organics are growing within the containment areas. Recommend removal of all plants.

C.1.2 SHELLS

C.1.2.1 External Visual Inspection

a. Visually inspect for paint failures, pitting, and corrosion.

X Minor coating failure on shell valves.

b. Clean off the bottom angle area and inspect for corrosion and thinning on plate and weld.

X

c. Inspect the bottom-to-foundation seal, if any. X The sealant between the floor projection and the concrete ringwall was in good condition.

C.1.2.2 Internal (Floating Roof Tank)

Visually inspect for grooving, corrosion, pitting and coating failures.

X Floating pan was inspected from the roof at the combination vent/hatches. No items of concern were noted.

C.1.2.3 Riveted Shell Inspection

a. Inspect external surface for rivet and seam leaks. N/A

b. Locate leaks by sketch or photo (location will be lost when shell is abrasive cleaned for painting).

N/A

c. Inspect rivets for corrosion loss and wear. N/A

d. Inspect vertical seams to see if they have been full fillet lap-welded to increase joint efficiency.

N/A

e. If no record exists of vertical riveted seams, dimension and sketch (or photograph) the rivet pattern; number of rows, rivet size, pitch length, and note whether the joint is butt-riveted or lap-riveted.

C.1.2.4 Wind Girder (Floating Roof Tanks) The tank has a fixed roof.

a. Inspect wind girder and handrail for corrosion damage (paint failure, pitting, corrosion product buildup), especially where it occurs at tack-welded junction, and for broken welds.

X

There are no horizontal wind girders, but there are four vertical shell stiffeners.

Two are located at each end of the roof support beam.

b. Check support welds to shelf for pitting, especially on shell plates. N/A

c. Note whether supports have reinforcing pads welded to shell. X No reinforcing pads – vertical stiffeners are welded directly to the shell.

C.1.3 SHELL APPURTENANCES

C.1.3.1 Manways and Nozzles

Tank 743 – API 653 Inspection APPENDIX A, Page 3

EEI Project No.: 9325

Tank No.: 743 Prepared by: DRM

a. Inspect for cracks or signs of leakage in weld joint at nozzles, manways, and reinforcing plates. X None observed.

b. Inspect for shell plate dimpling around nozzles, caused by excessive pipe deflection. X None observed.

c. Inspect for flange leaks and leaks around bolting. X None observed.

d. Inspect sealing of insulation around manways and nozzles. N/A

e. Check for inadequate manway flange and cover thickness on mixer manways.

Tank 743 is not equipped with mixer manways.

C.1.3.2 Tank Piping Manifolds

a. Inspect manifold piping, flanges, and valves for leaks. X No leaks observed.

b. Inspect firefighting system components. N/A The tank is not equipped with firefighting components.

c. Check for anchored piping which would be hazardous to the tank shell or bottom connections during earth movement.

X The piping is equipped with pipe supports that allow for movement during seismic activity.

d. Check for adequate thermal pressure relief of piping to the tank. X The fill and issue lines are equipped with relief valves around the shell valves.

e. Check operation of regulators for tanks with purge gas systems. N/A

f. Check sample connections for leaks and for proper valve operation. N/A The tank is not equipped with sample connections.

g. Check for damage and test the accuracy of temperature indicators. N/A Temperature readings are recorded as part of the ENRAF ATG system.

h. Check welds on shell-mounted davit clips above valves 6 in. and larger. N/A

The tank is not equipped with shell mounted davits. The manhole covers are hinged.

C.1.3.3 Autogauge System

The tank is equipped with an ENRAF ATG systems mounted on the roof and a Shand & Jurs tape gauge. The tape gauge head is mounted to the tank shell.

a. Inspect autogauge tape guide and lower sheave housing (floating swings) for leaks. N/A External inspection only.

b. Inspect autogauge head for damage. X No damage was observed.

c. Bump the checker on autogauge head for proper movement of tape. X

Tank 743 – API 653 Inspection APPENDIX A, Page 4

EEI Project No.: 9325

Tank No.: 743 Prepared by: DRM

d. Identify size and construction material of autogauge tape guide (floating roof tanks). N/A

e. Ask operator if tape tends to hang up during tank roof movement (floating roof tanks). X The facility operators did not report any concerns.

f. Compare actual product level to the reading on the autogauge (maximum variation is 2 in.). N/A

g. On floating roof tanks, when the roof is in the lowest position, check that no more than two ft.

of tape are exposed at the end of the tape guide.

h. Inspect condition of board and legibility of board-type autogauges. N/A The tank is not equipped with a gauge board.

i. Test freedom of movement of marker and float. N/A

C.1.3.4 Shell-Mounted Samples Station

a. Inspect sample lines for function of valves and plugging of lines, including drain or return-to-tank line.

N/A The tank is not equipped with shell mounted sample connections.

b. Check circulation pump for leaks and operating problems. N/A

c. Test bracing and supports for sample lines and equipment. N/A

C.1.3.5 Heater (Shell Manway Mounted)

Inspect condensate drain for presence of oil indicating leakage. N/A

C.1.3.6 Mixer

a. Inspect for proper mounting flange and support. N/A

b. Inspect for leakage. N/A

c. Inspect condition of power lines & connection to mixer. N/A

C. 1.3.7 Swing Lines: Winch Operation The tank is not equipped with swing lines.

a. Nonfloating. Raise, then lower the swing line with winch, and check for cable tightness to confirm that swing line lowered properly.

b. Floating. With tank half full or more, lower the swing line, then let out cable and check if swing line has pulled cable tight, indicating that the winch is operating properly.

c. Indicator. Check that the indicator moves in the proper direction: Floating swing line indicators show a lower level as cable is wound up on the

Tank 743 – API 653 Inspection APPENDIX A, Page 5

EEI Project No.: 9325

Tank No.: 743 Prepared by: DRM winch. Non-floating swing line indicators show the opposite.

C.1.3.8 Swing Lines: External Guide System

Check for leaks at threaded and flanged joints. N/A

C.1.3.9 Swing Lines: Identify Ballast Varying Need

Check for significant difference in stock specific gravity. N/A

C.1.3.10 Swing Lines: Cable Material and Condition

a. For nonstainless steel cable, check for corrosion over entire length. N/A

b. All cable: check for wear or fraying. N/A

C.1.3.11 Swing Lines: Product Sample Comparison

Check for water or gravity differences that would indicate a leaking swing joint. N/A

C.1.3.12 Swing Lines: Target

Target should indicate direction of swing opening (up or down) and height above bottom where suction will be lost with swing on bottom support.

C.1.4 ROOFS

C.1.4.1 Deck Plate Internal Corrosion

For safety, before accessing the roof, check with ultrasonic instrument or lightly use a ball peen hammer to test the deck plate near the edge of the roof for thinning. (Corrosion normally attacks the deck plate at the edge of a fixed roof and at the rafters in the center of the roof first.)

C.1.4.2 Deck Plate Exterior Corrosion

Visually inspect for paint failure, holes, pitting, and corrosion product on the roof deck.

X Moss was observed on the tank roof.

Recommend cleaning the roof plates by powerwashing or other non-mechanical means.

C.1.4.3 Roof Deck Drainage

Look for indication of standing water. (Significant sagging of fixed roof deck indicates potential rafter failure. Large standing water areas in a floating roof indicate inadequate drainage design or, if to one side, a nonlevel roof with possible leaking pontoons).

None observed.

C.1.4.4 Level of Floating Roof

Tank 743 – API 653 Inspection APPENDIX A, Page 6

EEI Project No.: 9325

Tank No.: 743 Prepared by: DRM

At several locations, measure distance from roof rim to a horizontal weld seam above the roof. A variance in the readings indicates a nonlevel roof with possible shell out-of-round, out-of-plumb, leaking pontoons, or hang-up. On small diameter tanks, an unlevel condition can indicate unequal loading at that level.

The tank is equipped with an aluminum honeycomb floating pan. Entry was not made above the floating pan as part of the external inspection.

C.1.4.5 Gas Test Internal Floating Roof

Test for explosive gas on top of the internal floating roof. Readings could indicate a leaking roof, leaking seal system, or inadequate ventilation of the area above the internal floating roof.

C.1.4.6 Roof Insulation The tank is not insulated.

a. Visually inspect for cracks or leaks in the insulation weather coat where runoff rain water could penetrate the insulation.

b. Inspect for wet insulation under the weather coat.

N/A

c. Remove small test sections of insulation and check roof deck for corrosion and holes near the edge of the insulated area.

N/A

C.1.4.7 Floating Roof Seal System Entry into the tank was not performed.

The floating pan is equipped with a wiper seal. No concerns were noted as viewed from the roof inspection hatches.

a. Measure and record maximum seal-to-shell gaps at:

N/A

1. Low pump out N/A

2. Mid-shell N/A

3. High liquid level N/A

b. Measure and record annular space at 30-ft.

spacing (minimum of four quadrants) around roof and record. Measurements should be taken in directly opposite pairs.

N/A

1. __________ _________ Opposite pair 1. N/A

2. __________ _________ Opposite pair 2. N/A

c. Check if seal fabric on primary shoe seals is pulling shoes away from shell (fabric not wide enough).

d. Inspect fabric for deterioration, holes, tears, and cracks. N/A

Tank 743 – API 653 Inspection APPENDIX A, Page 7

EEI Project No.: 9325

Tank No.: 743 Prepared by: DRM

e. Inspect visible metallic parts for corrosion and wear. N/A

f. Inspect for openings in seals that would permit vapor emissions. N/A

g. Inspect for protruding bolt or rivet heads against the shell. N/A

h. Pull both primary and secondary seal systems back all around the shell to check their operation. N/A

i. Inspect secondary seals for signs of buckling or indications that their angle with the shell is too shallow.

j. Inspect wedge-type wiper seals for flexibility, resilience, cracks, and tears. N/A

C.1.5 ROOF APPURTENANCES

C.1.5.1 Sample Hatch

a. Inspect condition and functioning of sample hatch cover. X The hatch cover was in acceptable condition.

b. On tanks governed by Air Quality Monitoring District rules, check for the condition of seal inside hatch cover.

c. Check for corrosion and plugging on thief and gauge hatch cover. X None observed.

d. Where sample hatch is used to reel gauge stock level, check for marker and tab stating hold-off distance.

e. Check for reinforcing pad where sample hatch pipe penetrates the roof deck. X The sample hatch is located in the roof manway cover.

f. On floating roof sample hatch and recoil systems, inspect operation of recoil reel and condition of rope.

g. Test operation of system. X

h. On ultra clean stocks such as JP4, check for presence and condition of protective coating or liner inside sample hatch (preventing rust from pipe getting into sample).

C.1.5.2 Gauge Well

a. Inspect visible portion if the gauge well for thinning, size of slots, and cover condition. X

Entry into the tank was not performed.

Inspection was limited to examination from the roof inspection hatches. No concerns were noted.

Tank 743 – API 653 Inspection APPENDIX A, Page 8

EEI Project No.: 9325

Tank No.: 743 Prepared by: DRM

b. Check for a hold-off distance marker and tab with hold-off distance (legible). X

A gauge height name plate has been attached to the roof handrail at the top of the stairs.

c. On floating roof, inspect condition of roof guide for gauge well, particularly the condition of the rollers for grooving.

X Unable to examine rubber seals at penetration.

d. If accessible, check the distance from the gauge well pipe to the tank shell at different levels.

e. If tank has a gauge well washer, check valve for leakage and for presence of a bull plug or blind flange.

C.1.5.3 Fixed Roof Scaffold Support

Inspect scaffold support for corrosion, wear, and structural soundness. N/A The tank is not equipped with scaffold supports.

C.1.5.4 Autogauge: Inspection Hatch and Guides (Fixed Roof)

a. Check the hatch for corrosion and missing bolts. N/A The tape gauge nozzle is not equipped with an inspection hatch.

b. Look for corrosion on the tape guide’s and float guide’s wire anchor. N/A

C.1.5.5 Autogauge: Float Well Cover

c. Inspect for corrosion. X

d. Check tape cable for wear or fraying caused by rubbing on the cover. N/A

C.1.5.6 Sample Hatch (Internal Floating Roof)

a. Check overall conditions. N/A

b. When equipped with a fabric seal, check for automatic sealing after sampling. N/A

c. When equipped with a recoil reel opening device, check for proper operations. N/A

C.1.5.7 Roof-Mounted Vents (Internal Floating Roof)

Check condition of screens, locking, and pivot pins.

X

The tank is equipped with four perimeter combination vent/inspection hatches.

The latches were in acceptable condition.

C.1.5.8 Gauging Platform Drip Ring

On fixed roof tanks with drip rings under the gauging platform or sampling area, inspect for plugged drain return to the tank.

N/A The tank is not equipped with a gauging platform.

Tank 743 – API 653 Inspection APPENDIX A, Page 9

EEI Project No.: 9325

Tank No.: 743 Prepared by: DRM

C.1.5.9 Emergency Roof Drain

Inspect vapor plugs for emergency drain: that seal fabric discs are slightly smaller than the pipe ID and that fabric seal is above the liquid level.

N/A The tank is not equipped with an emergency roof drain.

C.1.5.10 Removable Roof Leg Racks

Check for leg racks on roof. N/A The tank is not equipped with a removable

C.1.5.11 Vacuum Breakers

Report size, number, and type of vacuum breakers.

Inspect vacuum breakers. If high legs are set, check for setting of mechanical breaker in high leg position. X

Based on the previous out-of-service inspection report, the tank is equipped with one combination pressure relief/vacuum breaker.

C.1.5.12 Rim Vents

a. Check condition of the screen on the rim vent cover. X Vent screens are in acceptable condition.

b. Check for plating off or removal of rim vents where jurisdictional rules do not permit removal. N/A

C.1.5.13 Pontoon Inspection Hatches The floating pan is of aluminum honeycomb construction.

a. Open pontoon inspection hatch covers and visually check inside for pontoon leakage. N/A

b. Test for explosive gas (an indicator of vapor space leaks). N/A

c. If pontoon hatches are equipped with locked down covers, check for vent tubes. Check that vent tubes are not plugged-up. Inspect lock-down devices for condition and operation.

C.1.6 Accessways See item C.2.12 below.

C. 2.12 ACCESS STRUCTURES

C. 2.12.1 Handrails

a. Identify and report type (steel pipe, galvanized pipe, square tube, angle) and size of handrails. X The roof is equipped with a full perimeter handrail consisting of coated pipes.

b. Inspect for pitting and holes, paint failures. X None observed.

c. Inspect attachment welds. X

d. Identify cold joints and sharp edges. Inspect the handrails and midrails. N/A

e. Inspect safety drop bar (or safety chain) for corrosion, functioning, and length. N/A

Tank 743 – API 653 Inspection APPENDIX A, Page 10

EEI Project No.: 9325

Tank No.: 743 Prepared by: DRM

f. Inspect the handrail between the rolling ladder and the gaging platform for a hazardous opening when the floating roof is at its lowest level.

C. 2.12.2 Platform Frame

a. Inspect frame for corrosion and paint failure.

X No coating failure was observed on the platform.

b. Inspect the attachment of frame to supports and supports to tank for corrosion and weld failure. X

c. Check reinforcing pads where supports are attached to shell or roof. X

d. Inspect the surface that deck plate or grating rests on, for thinning and holes. X

e. Check that flat-surface-to flat-surface junctures are seal welded. X

C. 2.12.3 Deck Plate and Grating

a. Inspect deck plate for corrosion-caused thinning or holes (not drain holes) and paint failure. X No concerns observed.

b. Inspect plate-to –frame wells for rust scale buildup. X

c. Inspect grating for corrosion-caused thinning of bars and failure of welds. X

d. Check grating tie down clips. Where grating had been retrofitted to replace plate, measure the rise of the step below and above the grating surface and compare with other risers on the stairway.

C. 2.12.4 Stairway Stringers

a. Inspect spiral stairway stringers for corrosion, paint failure, and weld failure. Inspect attachment of stairway treads to stringer.

X No corrosion was observed.

b. Inspect stairway supports to shell welds and reinforcing pads. X

c. Inspect steel support attachment to concrete base for corrosion. N/A

C. 2.12.5 Rolling Ladder The tank is not equipped with a rolling ladder.

a. Inspect rolling ladder stringers for corrosion. N/A

b. Identify and inspect ladder fixed rungs (square bar, round bar, angles) for weld attachment to stringers and corrosion, particularly where angle rungs are welded to stringers.

c. Check for wear and corrosion where rolling ladder attaches to gaging platform. N/A

d. Inspect pivot bar for wear and secureness. N/A

Tank 743 – API 653 Inspection APPENDIX A, Page 11

EEI Project No.: 9325

Tank No.: 743 Prepared by: DRM

e. Inspect operation of self-leveling stairway treads. N/A

f. Inspect for corrosion and wear on moving parts. N/A

g. Inspect rolling ladder wheels for freedom of movement, flat spots, and wear on axle. N/A

h. Inspect alignment of rolling ladder with roof track. N/A

i. Inspect top surface of rolling ladder rack for wear by wheels to assure at least 18 in. of unworn track (track long enough).

j. Inspect rolling ladder track welds for corrosion. N/A

k. Inspect track supports on roof for reinforcing pads seal-welded to deck plate. N/A

l. Check by dimensioning, the maximum angle of the rolling ladder when the roof is on low legs.

Max angle __________________.

m. If rolling ladder track extends to within 5 ft. of the edge of the roof on the far side, check for a handrail on the top of the shell on that side.

Additional Notes:

1. Water was observed in the bottom of the leak detection standpipes. Recommend removing water and monitoring for fluid accumulation as part of routine maintenance.

APPENDIX B

ASSESSMENT OF COMPLIANCE WITH

MILITARY CRITERIA

Tank 743 – API 653 Inspection APPENDIX B, Page 1 JBER, Ak (743) EEI Project No.: 9325

ASSESSMENT OF COMPLIANCE WITH MILITARY CRITERIA

UFC 3-460-01, Table 8-1

(Complete UFC available at www.wbdg.org) Requirements for Vertical Aboveground Storage Tank (V-A) Only

ITEM APPURTENANCE

(UFC REQUIREMENT)

COMPLIANT

COMMENTS/RECOMMENDATION

(A blank in comments column indicates UFC compliance) YES NO

MANHOLE

c A shell manhole located above the internal floating pan’s high position to aid in venting the tank during cleaning and to provide access to the floating pan’s elastomeric wiper seals as required by DoD Standard AW 78-24-27.

Tank 743 has a 36-inch manhole in the second course.

e Roof manholes in accordance with API Std

650. Locate the roof manholes near the perimeter of the roof at opposite ends of a diameter and approximately 90 degrees from the shell manholes.

Tank is equipped with one 36-inch roof manhole.

f Shell manholes in accordance with API Std

650. Two 36-inch shell manholes 180 degrees from each other. Align shell manholes parallel with prevailing wind direction. Support shell manhole covers by davits.

Tank is equipped with two 36-inch manholes in the first shell course.

g A bolted cover in the roof for installation and removal of the internal floating pan as required by the tank supplier based on the pan manufacturer.

X Tank is equipped with a 24 x 72-inch construction hatch.

INSPECTION HATCHES

h A minimum of four 24-inch square inspection hatches on fixed roof tanks with floating pans. Inspection hatches are not required for tanks without floating pans.

Tank has four hinged, perimeter combination vent / inspection hatches with bird screens in the tank roof.

LADDER/STAIRS

i Internal ladders (in accordance with OSHA criteria) for tanks of 5,000 gallons or larger with floating pans.

X The tank is equipped with a combination gauge tube ladder.

k Ladders, railings, toeboards, a spiral stairway, top platform, and handrail in accordance with API Std 650 and OSHA requirements. Provide stairways to access high level shut-off and alarms. Provide metal bar grating stair tread and platforms.

Provide stair tread with non-slip nosings.

The tank is equipped with a spiral stairway, platforms and handrails in accordance with API 650 and OSHA requirements. The stair includes serrated treads.

LEVEL ALARMS

l An individual automatic level alarm system, independent of the gauging device or system for each tank. Include high, high-high, low and low-low level alarms.

The tank is equipped with a level alarm system independent of the ATG system that includes HI- HI, HI and LOW level alarms. Although the tank does not have a LOW-LOW level alarm, there is no compelling reason to provide one.

http://www.wbdg.org/ccb/browse_cat.php?o=29&c=4

Tank 743 – API 653 Inspection APPENDIX B, Page 2

EEI Project No.: 9325

ASSESSMENT OF COMPLIANCE WITH MILITARY CRITERIA

UFC 3-460-01, Table 8-1

(Complete UFC available at www.wbdg.org) Requirements for Vertical Aboveground Storage Tank (V-A) Only

ITEM APPURTENANCE

(UFC REQUIREMENT)

COMPLIANT

COMMENTS/RECOMMENDATION

(A blank in comments column indicates UFC compliance) YES NO

VENTS

m Open atmospheric vents with weather hoods and bird screens or pressure/vacuum vents in lieu of open vents. Comply with NFPA 30, host nation requirements, Chapter 2 of this UFC, API Std 650, API Std 2000, 29 CFR Part 1910.106, and DoD Standard Design AW 78-24-27, where applicable.

Tank is equipped with a 26-inch atmospheric vent with a weather hood and bird screen.

n Emergency relief venting with capacity in accordance with NFPA 30 and UL 142, as applicable or a weak roof-to-shell seam, as specified in API Std 650.

The tank diameter is 43 feet 6 inches. For tanks less than 50 feet in diameter, the roof-to-shell joint may not be considered frangible unless certain conditions are met.

API 650 5.8.5.1 States that tanks with fixed roof and an internal floating roof satisfy normal and emergency venting requirements when they comply with circulation venting requirements of Appendix H.

Tank complies with the circulation requirements of API 650 Appendix H.

GAUGE/GAUGE HATCH/STILLING WELLS

o A liquid level gauge calibrated in 1/16-inch graduations mounted at 60 inches above the walking surface.

X Tank is equipped with a Shand & Jurs tape gauge.

p Automatic Tank Gauging (ATG) for all tanks with fuel managed through the Defense Logistics Agency's Business Modernization {BSM Enterprise Resource Programs (ERP) - Fuels section}, that complies with API MPMS Chapter 3.

Tank is equipped with an ENRAF automatic tank gauging system.

r One 10-inch roof flanged nozzle with an 8-inch aluminum, fully slotted, stilling well for ATG near the edge of the roof near the top of the stairway platform.

Gauge tubes will be addressed at the next out-of-service inspection.

s One 8-inch roof flanged nozzle with a 6-inch aluminum, fully slotted, stilling well for temperature and water bottom sensor, as close to or in the tank sump as possible. See DoD Standard Design AW 78-24-27.

t One 10-inch roof nozzle and an aluminum, slotted stilling well extended to within 3 inches of the bottom of the tank* for gauging and sampling. A datum plate to establish a gauging zero point.

Tank 743 – API 653 Inspection APPENDIX B, Page 3

EEI Project No.: 9325

ASSESSMENT OF COMPLIANCE WITH MILITARY CRITERIA

UFC 3-460-01, Table 8-1

(Complete UFC available at www.wbdg.org) Requirements for Vertical Aboveground Storage Tank (V-A) Only

ITEM APPURTENANCE

(UFC REQUIREMENT)

COMPLIANT

COMMENTS/RECOMMENDATION

(A blank in comments column indicates UFC compliance) YES NO

PIPE CONNECTION

u Inlet fill connection. See Facility Plates 016, 017, and 018, as applicable.

Based on the previous out-of-service inspection report, the tank is equipped with an inlet fill connection that meets UFC 3-460-01 criteria.

v Main suction and low suction. See DoD Standard Design AW 78-24-27.

X Based on the previous out-of-service inspection the tank is equipped with main and low suction.

The tank meets UFC 3-460-01.

OVERFILL PROTECTION

x Overfill protection with a hydraulically operated diaphragm control valve.

X Tank is equipped with a hydraulically operated diaphragm control valve.

WATER DRAW-OFF

aa Water draw-off connections. See DoD Standard Design AW 78-24-27.

X The tank is equipped with a 3-inch water draw-off connection.

BALL JOINTS

ee Ball joints on pipes to relieve strain caused by tank settling or seismic activity.

Piping is equipped with a spring pipe support to relieve strain caused by settling or seismic activity.

CABLE SUPPORTS

ff On the fixed roof of all tanks, provide two scaffold cable supports in accordance with API Std 650.

The tank does not have scaffold cable supports.

There is no compelling reason to provide scaffold cable supports.

STRIKER PLATES

gg Striker plates under all openings used for manual gauging in steel tanks and all openings in fiberglass tanks.

X Based on previous out-of-service inspection report, the tank is equipped with a striker/datum plate under the roof nozzle that is used for manual gauging.

Additional Military Criteria Items, Comments or Notes:

None.

END OF DATA

APPENDIX C

NON-DESTRUCTIVE EXAMINATION (NDE) AND

EVALUATION CRITERIA

Tank 743 – API 653 Inspection APPENDIX C, Page 1

EEI Project No. 9325

IN-SERVICE INSPECTION

CODES AND STANDARDS

API Standard 653, 5th Edition, November 2014

API Standard 650, 12th Edition, March 2013, Addendum 2, January 2016

UFC 3-301-01 Structural Engineering, June 2016

NON DESTRUCTIVE EXAMINATION (NDE)

Tank Inspection (General)

API Standard 653 as applicable.

Visual Inspection

1. Inspection Items

• In accordance with API Standard 653 and EEI STD for API 653 In-Service Inspection

• Shell and roof plate welded joints (where accessible).

• Shell and roof plate surfaces.

• Items affecting structural and hydraulic integrity

2. Method

• In accordance with API Standard 653.

Ultrasonic Testing (UT)

Ultrasonic thickness measurements were taken to establish floor, shell, and roof plate thicknesses.

1. Inspection Items

• In accordance with EEI NDE Procedure, EEI-UT-002, Ultrasonic Thickness Examination.

• Shell plates

• Roof plates

• Tank appurtenances

2. Equipment

• Olympus 38DL Plus / Panametrics 37DL Plus

Tank 743 – API 653 Inspection APPENDIX C, Page 2

EEI Project No. 9325

3. Method

• Perform on a spot basis to determine thickness.

• Perform in areas of low UT thickness readings to determine the nature of the low reading that is backside corrosion, lamination, or inclusion within the parent material.

• Echo/Echo (E/E) or Thru Coat mode for determining metal thickness and backside corrosion on coated surfaces without including thickness of coating in reading.

Pit Survey

1. Inspection Items

• Tank shell

• Tank roof

2. Equipment

• Mechanical pit gauges

Tank Bottom Settlement Measurements

1. Equipment

• Laser level

2. Method

• In accordance with API Standard 653 Appendix B, measure the floor profile at a minimum of eight locations around the tank perimeter not greater than 30 feet apart.

Coating Thickness Measurements

1. Equipment

• Olympus 38DL Plus (Thru Coat mode) / PosiTector 6000 Thickness Gauge

2. Method

• Measurements taken at UT locations.

APPENDIX D

TANK DRAWINGS

APPENDIX E

TANK PHOTOGRAPHS

All photographs in this report, unless otherwise noted, were taken by Enterprise Engineering, Inc.

Enterprise Engineering, Inc. hereby grants permission to the U.S. Government and its contractors to publish/republish these photos.

Tank 743 – API 653 Inspection APPENDIX E, Photographs, Page 1

Northeast Elevation

Southeast Elevation

Tank 743 – API 653…