Attachment J3 - Previous Inspection Report 5018-Tank 3.pdf

Gilbane Tanks K1002 and W0003 – Post Repair API 653 Inspections

June 19, 2019

All Pond marketing materials are printed on papers containing post-consumer recycled fibers and are FSC Certified.

August 7, 2020

Ronald J. Weiser

Project Manager ronald.j.wieser@usace.army.mil

USACE, Omaha District

Contract Number: W9128F-17-D-0016

Task Order Number: W9128F20F0026

Submittal Number: 033

Per SOW para 2.4.1 and 2.4.1.2, see attached for the following document(s):

1. Moody AFB – Tank 3(Facility 5018) Final In-Service Inspection Report

2. Attachment C – Moody AFB Tank 3 (Facility 5018) Fuel Storage Tank Excel Document

Respectfully submitted, Pond

Anthony E, Chinn, EIT

Program Manager | Mechanical Integrity chinna@pondco.com

678-591-5242

CC: John Anna - john.anna@us.af.mil

Michael Deeker - michael.deeker@dla.mil

Rueben Watson - ruben.watson@dla.mil

Daniel Cook - Daniel.1.cook@dla.mil

William Delos Santos - william.delossantos@dla.mil

James Lee - james.b.lee85.mil@mail.mil

Larry Frazier - Larry.Frazier.1@us.af.mil mailto:ronald.j.wieser@usace.army.mil mailto:chinna@pondco.com mailto:john.anna@us.af.mil mailto:michael.deeker@dla.mil mailto:ruben.watson@dla.mil mailto:Daniel.1.cook@dla.mil mailto:Larry.Frazier.1@us.af.mil

US Army Corps of Engineers Omaha District

API 653 Out-of-Service Inspection Report

Moody Air Force Base Facility 5018

Tank 3

US Army Corps of Engineers Center of Expertise for Petroleum, Oils and Lubricants

(USACE POL-MCX)

06/18/2020

API 653 Out-of-Service Inspection Report Moody AFB, Georgia

TABLE OF CONTENTS

ACRONYMS AND ABBREVIATIONS

GENERAL SUMMARY

INSPECTION DATE

STATE REGULATIONS

PREVIOUS INSPECTION DATES

RECOMMENDED FUTURE INSPECTION DATES

GENERAL TANK INFORMATION

A. GENERAL PROJECT INFORMATION

1. API 653 OOS (INTERNAL) INSPECTION

2. SITE INFORMATION

B. TANK INSPECTION COMMENTS

1. TANK CONSTRUCTION

2. TANK FOUNDATION

3. TANK BOTTOM

4. TANK SHELL

5. FIXED ROOF

6. TANK APPURTENANCES

7. TANK AND PIPING COATING

8. TANK PIPING SYSTEM

9. FIRE PROTECTION SYSTEM

10. SECONDARY CONTAINMENT

11. CATHODIC PROTECTION

C. FINDINGS AND RECOMMENDATIONS

1. MANDATORY REPAIRS PER API 650/653, UFC 3-460-01/3-460-03, OR DoD AW 78-24-27

2. SHORT-TERM RECOMMENDED REPAIRS

3. LONG-TERM RECOMMENDED REPAIRS

APPENDIX A: ENGINEERING CALCULATIONS AND DRAWINGS

NEXT INSPECTION

API/OSHA ACCESS STRUCTURE REPORT

APPENDIX B: API 653 CHECKLISTS FOR TANK INSPECTIONS

APPENDIX C: PHOTOGRAPHS

ACRONYMS AND ABBREVIATIONS

AFB Air Force Base

AFFF Aqueous Film Forming Foam

API American Petroleum Institute

ATG Automatic Tank Gauge

BBL Barrel

BMP Best Management Practices

CP Cathodic Protection

DB&B Double Block and Bleed

DFT Dry Film Thickness

DoD Department of Defense

FML Flexible Membrane Liner

HHLA High-High Level Alarm

HLA High Level Alarm

HLCV High Level Control Valve

IAW In Accordance With

ICCP Impressed Current Cathodic Protection

IFR Internal Floating Roof

LLA Low Level Alarm

LLLA Low-Low Level Alarm

MFL Magnetic Flux Leakage

MT Magnetic Particle Testing

NACE NACE International

NDT Non-Destructive Testing

NFPA National Fire Protection Association

OSHA Occupational Health and Safety Administration

OOR Out-of-Roundness

OOS Out-of-Service

PST Product Saver Tank

PT Dye Penetrant Testing

RMMR Recurring Maintenance and Minor Repair

SS Soil-Side

TLG Tape Level Gauge

TRV Thermal Relief Valve

TS Top-Side

UFC Unified Facilities Criteria

USACE United States Army Corps of Engineers

UTT Ultrasonic Thickness Testing

VT Visual Testing

GENERAL SUMMARY

Pond was retained by the United States Army Corps of Engineers (USACE) Omaha District to provide an out-of-service (OOS) tank inspection for Tank 3 (Facility 5018) at Moody Air Force Base (AFB) in Valdosta, Georgia.

The internal OOS inspection was performed 17-18 June 2020. The previous internal OOS inspections were completed on February 2012 and February 2019 respectively. Results of this inspection identified mandatory and recommended repairs/upgrades to fully comply with applicable sections of American Petroleum Institute (API)

650/653, Unified Facilities Criteria (UFC) 3-460-01/3-460-03, Department of Defense (DoD) standard AW 78-24-

27, Occupational Safety and Health Administration (OSHA) guidelines, industry standards, and best management practices (BMP). Identified mandatory repairs are scheduled to be completed via an emergency service order placed by the facility.

Tank 3 is a welded, carbon steel, vertical, aboveground Jet-A (F-24) storage tank. The tank is assumed to be constructed to API 650 standards by an unknown manufacturer in 1964 and was repaired by Toltest in April 2006 to API 653, 3rd Edition, Addendum 1. The tank is 35’-0” in diameter and 28’-6” high with a nominal capacity of 5,000

Barrels (BBL) (210,000 gallons).

Testing and inspection activities were performed in accordance with (IAW) applicable sections of API 653, 5th

Edition. This report contains a detailed account of the tank inspection, non-destructive testing (NDT) methods, and conclusions derived from the inspection and testing activities. Findings from this inspection are further detailed in

Section B – Tank Inspection Comments. Mandatory and recommended repairs/upgrades identified in Section B are further classified and listed in Section C – Findings and Recommendations.

INSPECTION DATE

API Out-of-Service (Internal) Inspection Date: 17-18 June 2020 Equipment Used:

Manufacturer: MFE Enterprises Tank Floor Scanner Model Number: MFE 2412 Mark II Calibration Method: Manufacturer Calibrated

Manufacturer: GE Krautkramer Ultrasonic Thickness Gauge Model Number: DMS GO+ Calibration Method: One-Point Calibration with Topcoat Function

Manufacturer: Fischer Technologies Dry Film Thickness (DFT) Gauge Model Number: Dual Scope MPOR

Manufacturer: Technidea Corporation Model Number: Zip Level Pro-200

Manufacturer: Fluke Model Number: True RMS Multimeter

Inspectors:

Darrell A. Walters James F. Hancock II

STATE REGULATIONS

State Regulation for API In-Service Tank Inspections: N/A State Regulation for API Out-of-Service Tank Inspections: N/A

PREVIOUS INSPECTION DATES

API Out-of-Service (Internal) Inspection Date: February 2019 API In-Service (External) Inspection Date: February 2019

RECOMMENDED FUTURE INSPECTION DATES

API Out-of-Service (Internal) Inspection Date: June 2040* API In-Service (External) Inspection Date: June 2025* *Inspection intervals are only valid upon completion of all mandatory repairs.

Darrell A. Walters James F. Hancock II

Integrity Engineer Sr. Technician

API 653 Inspector #93640 STI Certified Inspector # AST-6409

ASNT NDT Level I/II ASNT NDT Level I/II

GENERAL TANK INFORMATION

ITEM DESCRIPTION

Owner United States Air Force

Location Moody AFB

Facility Number 5018

Tank Number 3

State / Country Georgia / USA

City Valdosta

Inspection Date 17-18 June 2020

Tank Manufacturer Original: Unknown Repaired By: Toltest, Inc.

Design Standard Original: API 650 (Assumed) Repaired To: API 653, 3rd Edition, Addendum 1

Date of Construction 1964

Tank Contents Jet-A (F-24)

Tank Serial Number N/A

Tank Diameter 35’-0”

Shell Height 28’-6”

Product Height Unknown

Tank Capacity 5,000 BBL (210,000 Gallons)

Foundation Concrete Ringwall

Construction

Bottom (Annular): Lap-Welded (Butt-Welded)

Shell: Butt-Welded W/ Five (5) Shell Courses

Fixed Roof: Lap-Welded W/ Center Support Column

Floating Roof: Honeycomb Pan

Material

Bottom: Carbon Steel

Shell: Carbon Steel

Fixed Roof: Carbon Steel

Floating Roof: Aluminum

Cathodic Protection (CP) Impressed Current Cathodic Protection (ICCP)

Interior Coating System* Epoxy

Exterior Coating System* Epoxy with Polyurethane Topcoat

Level Gauging Enraf Automatic Tank Gauge (ATG) and Varec Tape Level Gauge (TLG)

Overfill Protection High Level Alarm (HLA) / High-High Level Alarm (HHLA) / High-Level Control Valve (HLCV) Float Pilot

Piping

Receipt: 8-inch Carbon Steel

Main Suction: 16-inch Carbon Steel

Low Suction: 4-inch Carbon Steel

Water Draw-Off: 1 ½-inch Carbon Steel

Level Alarms HLA/HHLA and Low-Level Alarm (LLA)/Low-Low Level Alarm (LLLA)

Notes:

*Repair drawings and the previous OOS inspection reports dated February 2012 and February 2019 were available for review and comparison.

A. GENERAL PROJECT INFORMATION

1. API 653 OOS (INTERNAL) INSPECTION

The OOS inspection was performed 17-18 June 2020. Results of this inspection identified both mandatory and recommended repairs/upgrades to fully comply with applicable sections of API

650/653, UFC 3-460-01/3-460-03, DoD standard AW 78-24-27, National Fire Protection Association

(NFPA) 407, OSHA guidelines, and industry standards.

2. SITE INFORMATION

The Major Command at Moody AFB is the Air Combat Command. The 23rd wing is the home of the world famous “Flying Tigers”, combat search and rescue, and security forces warriors. The 23rd wing consists of “first in” combat search and rescue, close air support, forward air control, interdiction and force protection airmen who conduct worldwide operations in support of United States national security interests and the global war on terror. Additionally, under the wing’s command is the 563rd rescue group at Davis-Monthan AFB with an operating location at Nellis AFB.

B. TANK INSPECTION COMMENTS

1. TANK CONSTRUCTION

Tank 3 is a welded, carbon steel, vertical, aboveground Jet A (F-24) storage tank. The tank is assumed to be constructed to API 650 standards by an unknown manufacturer in 1964 and was repaired by

Toltest in April 2006 to API 653, 3rd Edition, Addendum 1. The tank is 35’-0” in diameter and 28’-6” high with a nominal capacity of 5,000 BBLs (210,000 gallons).

2. TANK FOUNDATION

Tank 3 is provided a concrete ringwall foundation in good overall condition with no signs of spalling or cracking. Four (4) leak detection ports are provided between the new and original bottom. No fluid was expelled from the leak detection ports during inspection.

A settlement evaluation was performed during the inspection. The settlement evaluation satisfied API

653 Appendix B requirements. See Appendix A for settlement results.

3. TANK BOTTOM

The tank is provided a double bottom. The new tank bottom is cone-down with a 29-inch diameter by

10-inch deep center sump and constructed of lap-welded carbon steel plates with butt-welded annular carbon steel plates. The tank bottom was examined using magnetic flux leakage (MFL), ultrasonic thickness testing (UTT), and visual testing (VT) methods. Five (5) UTT measurements were taken on each bottom and annular plate. UTT readings were also taken circumferentially every 2-feet within 3-inches of the shell-to-bottom weld on the annular plates. UTT measurements indicated no significant signs of metal loss on bottom or annular plates. VT was performed at bottom plate lap-welds, annular plate butt-welds, and the shell-to-bottom weld. No significant findings were observed. VT was limited due to internal coating.

An MFL bottom scan was performed on accessible areas of the tank bottom to detect top-side (TS) and soil-side (SS) metal loss. During the internal MFL scan of the tank bottom and annular plates, no TS or

SS indications were identified.

Internal piping for the water draw-off is provided with u-bolt pipe supports. Water draw-off u-bolt pipe supports are not provided isolation between the support and pipe. Contact point corrosion was observed at the time of inspection. The receipt diffuser is configured such that the flow of fuel into the tank encounters appurtenances within 180°. The receipt diffuser should be configured such that flow is directed away from appurtenances to avoid damage.

Refer to Drawing A-1, “Bottom Layout”, in Appendix A for bottom plate locations, Table 1, “Bottom UTT

Measurements”, in Appendix A for tank bottom plate UTT measurements, and Table 2, “Bottom

Circumferential UTT Measurements”, in Appendix A for tank bottom circumferential UTT measurements.

4. TANK SHELL

The tank shell is equipped with five (5) fully coated, butt-welded, carbon steel shell courses. Shell plates were examined using UTT and VT methods. Nine (9) UTT measurements were taken on each plate of the 1st shell course, three (3) UTT measurements on each insert plate, and ten (10) UTT measurements on each of the 2nd through 5th shell courses using the spiral staircase for access. UTT measurements indicated no significant signs of metal loss on shell plates.

Numerous weld projections or gouges on the internal tank shell exhibit porosity, under-cut, and voids.

Crevice corrosion was observed at these locations. Additionally, pitting was identified at internal shell plates with signs of crevice corrosion. Such defects, only if active and deep, require repair to prevent loss of hydraulic integrity.

Four (4) HLCV conduit supports are welded within 1-inch of the horizontal weld seam between the 1st and 2nd shell courses. API mandates permanent tank shell attachments be provided a minimum 3-inches of spacing between the horizontal weld seam.

An out-of-roundness (OOR) survey was conducted on the internal tank shell. The largest deviation from the average tank diameter was 7/8-inches at 7-feet above the shell-to-bottom weld. The maximum allowable deviation at the shell-to-bottom weld per API 653 Table 10.2 is 1-inch. The resulting deviation of the tank diameter is acceptable IAW API 653 and does not exhibit significant signs of damage at the tank shell.

Refer to Drawing A-2, “Shell Layout”, in Appendix A for shell plate locations, Table 3, “Shell UTT

Measurements”, in Appendix A for shell plate UTT measurements, and Table 8, “Shell OOR

Measurements” in Appendix A for OOR results.

5. FIXED ROOF

The tank fixed roof was examined using UTT and VT methods. Five (5) UTT measurements were taken on each fixed roof plate. UTT measurements indicated no significant signs of metal loss on fixed roof plates.

A center column is provided for fixed roof support. The fixed roof center column is stitch welded, creating a crevice for fluid to collect, potentially accelerating coating failure and surface corrosion.

Crevice corrosion and corrosion staining were observed during inspection.

Three (3) conduit supports provided for the Vito temperature/water probe are not sealed to the fixed roof, allowing water ingress. Surface corrosion was observed at the time of inspection.

Refer to Drawing A-3, “Fixed Roof Layout”, in Appendix A for fixed roof plate locations and Table 4, “Fixed Roof UTT Measurements”, in Appendix A for fixed roof plate UTT measurements.

6. TANK APPURTENANCES

6.1 TANK SHELL

Nozzles and appurtenances associated with the shell were inspected using UTT and VT methods. Four (4) UTT measurements were taken on each nozzle with a welded connection greater than 1-inch at four (4) quadrants (0°, 90°, 180°, and 270°). One (1) UTT measurement was taken on each associated reinforcement pad or thickened insert plate. UTT measurements indicated no significant signs of metal loss on the nozzles, and adequately sized reinforcing pads and thickened insert plates.

Tank 3 is equipped with fourteen (14) shell nozzle penetrations: two (2) 36-inch manways, one (1) 8-inch receipt, two (2) 1 ½” HLA/HHLA nozzle penetrations, two (2) 1 ½-inch

LLA/LLLA penetrations, two (2) 1 ½-inch HLCV float pilot penetrations, one (1) 1 ½-inch threaded plug, one (1) 16-inch main suction, one (1) 4-inch low suction, one (1) 1 ½-inch water draw-off, and one (1) aqueous film forming foam (AFFF).

The davit arms for each of the two (2) manways are not provided with grease fittings.

Refer to Drawing A-2, “Shell Layout”, in Appendix A for shell nozzle locations and Table 6, “Nozzle/Repad UTT Measurement”, in Appendix A for nozzle and associated reinforcement pad/thickened insert plate UTT measurements.

6.2 INTERNAL FLOATING ROOF

Tank 3 is provided with an aluminum honeycomb floating pan with a double wiper seal for fire protection. The primary and secondary wiper seals provided for the internal floating roof

(IFR) are in good condition with no signs of damage or compromise. Vapor seals for the IFR access ladder and stilling well penetrations for the Enraf ATG, Vito temperature/water probe, and manual gauging hatch are damaged or no longer attached.

6.3 FIXED ROOF

Nozzles and appurtenances associated with the fixed roof were inspected using UTT and VT methods. Four (4) UTT measurements were taken on each nozzle with a welded connection greater than 1-inch at four (4) quadrants (0°, 90°, 180°, and 270°). One (1) UTT measurement was taken on each associated reinforcement pad. UTT measurements indicated no significant signs of metal loss on nozzles or reinforcing pads.

The fixed roof is provided fifteen (15) nozzle penetrations: one (1) 72-inch by 24-inch IFR inspection/installation hatch, one (1) 6-inch blind flange, four (4) 2-inch threaded plugs, one

(1) 6-inch Vito temperature/water probe, one (1) 36-inch by 36-inch IFR hatch with manual gauge hatch, one (1) 10-inch Enraf ATG, one (1) 1-inch Varec TLG, four (4) 1-inch threaded caps, and one (1) ¾-inch threaded plug.

A center vent is not provided at the fixed roof for normal venting. Two (2) perimeter roof vents are provided at the fixed roof.

Refer to Drawing A-3, “Fixed Roof Layout”, in Appendix A for fixed roof nozzle locations and

Table 6, “Nozzle/Repad UTT Measurement”, in Appendix A for nozzle and associated reinforcement pad UTT measurements.

6.4 GAUGING

The tank is provided a manual gauge hatch for manual gauging operations. An Enraf ATG and

Vito temperature/water probe are provided for automatic tank gauging and sampling. The cover for the manual gauge hatch is not provided a latch for securing the cover when not in use. The Enraf ATG and Vito temperature/water probe display is attached to the handrail at the bottom of the spiral staircase for checking product level from the ground. A mechanical

Varec TLG is provided for monitoring product level from the ground with the tape attached to the IFR. One (1) bracket securing the Varac TLG conduit to the tank shell is missing. The

Varec TLG is no longer used and should be removed per facility’s request.

6.5 LEVEL ALARMS

The tank is provided with independent, shell mounted alarms in the low, low-low, high, and high-high positions as well as a HLCV float pilot for overfill protection. According to facility personnel, all level alarms and the HLCV float pilot are functioning properly. Piping and nozzle connections for the HLA, HHLA, and HLCV float pilot are provided with threaded connections.

The tank is not provided with a standard product saver tank (PST) with means of testing the level alarms and HLCV system. The PST system should include tubing to the HLA, HHLA, and

HLCV float pilot to facilitate wet testing of the chambers.

6.6 STAIRS AND PLATFORMS

The tank is provided a spiral staircase with one (1) upper platform for fixed roof access. The

HLCV float pilot extends into the path of the spiral staircase, allowing 21 ½-inches of clearance between the appurtenance and staircase railing. OSHA mandates a minimum 26-inches of clearance between appurtenances and staircase railings. The handrail provided for the spiral staircase is 42-inches in height. OSHA mandates that handrail heights are between

30 to 38-inches above the walking surface. Current configuration presents a safety hazard to personnel performing inspection and maintenance operations.

6.7 GROUNDING AND BONDING

The tank shell is equipped with four (4) grounding cables, which are in good overall condition with no signs of deterioration or fraying. Crossover stair assembly at the main suction piping is not provided a grounding connection integrated with the existing tank grounding system.

7. TANK AND PIPING COATING

The external tank shell, fixed roof, and piping are provided with an epoxy polyurethane coating system.

External coating for the tank shell and chime exhibits chalking, flaking, and base metal exposure with surface corrosion. External coating for the fixed roof and associated nozzles and appurtenances exhibits chalking, flaking, and base metal exposure with surface corrosion. External coating for the receipt, LLA/LLLA, and PST piping exhibits flaking, cracking, and base metal exposure with surface corrosion. External coating for handrails and balusters provided for the dike access, pipe crossover stairs, and spiral stairs exhibits failure with flaking, base metal exposure, and surface corrosion.

The internal tank shell, fixed roof, bottom, and piping are provided with a two-coat epoxy coating system. Internal coating for the tank shell exhibits base metal exposure, surface corrosion, and corrosion staining. Internal coating for the tank bottom, appurtenances, and piping exhibits base metal exposure, surface corrosion, and corrosion staining.

DFT measurements were taken on the external shell, fixed roof, internal shell, and bottom. Refer to

Table 5, “Tank DFT Measurements”, in Appendix A for complete DFT data.

8. TANK PIPING SYSTEM

Piping within the containment dike is constructed of carbon steel. The low suction nozzle is not provided a main suction branch connection, limiting the amount of fuel that can be removed during maintenance and inspection activities.

Two (2) 8-inch ball valves are located upstream of the HLCV. UFC mandates that double block and bleed

(DB&B) valves should be used for positive isolation of the HLCV during maintenance activities. The receipt is provided u-bolt pipe supports with integrated uni-strut supports. Eleven (11) u-bolt attachments at the receipt with integrated uni-strut supports for the PST piping are not provided isolation, allowing direct metal-to-metal contact. Eight (8) uni-strut supports are missing brackets, enabling the PST piping to move laterally. Contact point corrosion was observed during inspection.

PST piping is provided threaded connections, one (1) sight flow indicator, and not provided isolation between piping and supports at fifteen (15) u-bolts. Threaded connections and sight flow indicators are no longer used in this application as they are potential leak paths. Contact point corrosion was observed at the pipe-to-support interfaces. One (1) main suction u-bolt pipe support and one (1) non-standard receipt pipe support are not anchored to the containment dike floor. The PST piping configuration is non-standard and does not allow for direct testing of the level alarms and HLCV.

9. FIRE PROTECTION SYSTEM

For internal fire protection, an aluminum honeycomb IFR is provided. Prior to the installation of the

IFR, an AFFF system was provided. The AFFF system is still integrated with the tank, however it is not necessary due to the presence of the IFR. Based on discussions with facility personnel, approval to remove the AFFF discharge chamber and piping has been granted by the Fire Chief.

10. SECONDARY CONTAINMENT

Tank 3 is located within a concrete containment dike partially covered with a flexible membrane liner

(FML). The containment dike is sized to hold approximately 315,000 gallons of liquid, satisfying the 1-foot UFC secondary containment freeboard height requirement.

The drain provided for the secondary containment is equipped with a manually operated valve and was tested during inspection. The drain was filled with water and maintained for 24-hours to test for leaks. After 24-hours of testing, the system did not leak, resulting in a sealed draining system.

11. CATHODIC PROTECTION

Tank 3 is equipped with an impressed current cathodic protection (ICCP) system to protect the tank bottom from SS corrosion. The rectifier for Tank 3 was operating at 23.31 volts and 0.24 amps. Three

(3) potential readings were taken for Tank 3. All readings met the -850 millivolt National International

(NACE) cathodic protection (CP) acceptance criteria and are displayed in the table below.

Tank 3 Potential Measurements Location On Potential (mV) Off Potential (mV)

1 -2137 -1177 2 -1288 -1090 3 -1201 -1097

C. FINDINGS AND RECOMMENDATIONS

Based on the OOS API 653 inspection of Tank 3 located at Moody AFB in Valdosta, Georgia mandatory and recommended repair/upgrades have been identified. The following recommendations outline observations from this inspection. All repair recommendations are based on applicable sections of API 650/653, UFC 3-

460-01/3-460-03, DoD Standard AW 78-24-27, NFPA 407, and industry standards.

1. MANDATORY REPAIRS PER API 650/653, UFC 3-460-01/3-460-03, OR DoD AW 78-24-27

Mandatory repairs represent items that require immediate attention, in order to prevent imminent risk to system operators, equipment integrity, or the adjacent environment. The tank should remain out of service until these repairs are completed.

1.1 Internal Shell Plate Pitting

OBSERVATION: Two (2) scattered gouges with signs of crevice corrosion were observed on the internal tank shell with pit depths of 0.050-inch and 0.040-inch. Remaining shell life at the deepest gouge based on criteria set forth in API 653 is 3.94 years.

The deepest gouge is located within the first shell course, 23-feet circumferentially counter-clockwise from Manway 1 and 14 ½-inches up from the shell-to-bottom weld and has a remaining thickness of 0.199-inches.

REFERENCE: API 653, Section 4.3.2.2.

RECOMMENDATION: Provide a lap patch or puddle weld repair at two (2) gouge locations. Repairs shall be performed IAW API 653 requirements. To be completed via an emergency service order.

1.2 Nozzle Reinforcement Pad Tell Tale

OBSERVATION: According to facility personnel, during the winter months fuel weeps from the reinforcing pad tell tale hole provided for Manway 1. No defects or damage were observed at internal nozzle and reinforcement pad welds.

REFERENCE: UFC 3-460-03, Section 8-9.13.4.1 (A) and API 650, Section 7.3.4.

RECOMMENDATION: Perform a pneumatic pressure test at the Manway 1 reinforcing pad internal welds using the tell tale hole opening. If pressure does not hold, apply a soap solution to the internal and external welds while the interstice is under pressure. Bubbles are indicative of a leak and will help locate the compromised weld. To be completed via an emergency service order.

1.3 IFR Penetration Vapor Seals

OBSERVATION: Vapor seals provided at four (4) penetrations for the IFR access ladder and stilling well, the Enraf ATG, Vito temperature/water probe, and manual gauging hatch are damaged or no longer attached.

REFERENCE: UFC 3-460-03, Section 8-9.1.1 (E).

RECOMMENDATION: Provide vapor seals at the IFR access ladder and stilling well penetrations for the Enraf ATG, Vito temperature/water probe, and manual gauging hatch. To be completed via an emergency service order by the facility.

2. SHORT-TERM RECOMMENDED REPAIRS

Short-term repairs relate to the long-term preservation of the asset. Short-term repairs represent items that should be addressed in a timely manner in order to prevent future potential risks to system operators, equipment integrity, or the adjacent environment. These items may be required by federal, state, and local codes or by military criteria.

2.1 Internal Shell Defects

OBSERVATION: Twelve (12) weld projections and gouges on the internal tank shell exhibit porosity, under-cut, and voids. Crevice corrosion on the tank shell was observed at these locations.

REFERENCE: API 653, Section 9.4.

RECOMMENDATION: Remove internal weld projections on shell courses 1 and 2, in between the

Receipt and Main suction.

2.2 Fixed Roof Center Support

OBSERVATION: The fixed roof center support is stitch welded. Crevice corrosion and corrosion staining were observed during inspection.

REFERENCE: UFC 3-460-01, Section 8-11.

RECOMMENDATION: Provide sealant at the fixed roof center support crevice, approximately 140 linear feet.

2.3 Tank Shell Internal Coating

OBSERVATION: Internal coating for the tank shell exhibits spot failure with base metal exposure, surface corrosion, and corrosion staining.

REFERENCE: UFC 3-460-01, Section 8-3.9 (a).

RECOMMENDATION: Provide approximately 100 ft2 of spot coating repair to the internal tank shell.

2.4 Tank Internal Piping and Appurtenances Coating

OBSERVATION: Coating for the ATG datum plate, manual gauge hatch datum plate, tank receipt diffuser, main suction, low suction, and water draw-off, including pipe supports, exhibits failure with base metal exposure, surface corrosion, and corrosion staining.

REFERENCE: UFC 3-460-01, Section 8-3.9 (c).

RECOMMENDATION: Provide approximately 75 ft2 of external coating repair to internal piping.

2.5 Tank Bottom Internal Coating

OBSERVATION: Internal coating for the tank bottom, center sump, and appurtenances exhibits failure with base metal exposure, surface corrosion, and corrosion staining.

REFERENCE: UFC 3-460-01, Section 8-3.9 (a).

RECOMMENDATION: Provide approximately 1200 ft2 (100%) of coating replacement to the tank bottom and appurtenances.

2.6 Tank Shell External Coating

OBSERVATION: External coating for the tank shell exhibits widespread chalking. Chalking indicates the coating system is near the end of its life cycle.

REFERENCE: UFC 3-460-01, Section 8-3.10 (a).

RECOMMENDATION: Provide a full recoat of the tank shell, approximately 3,800 ft2 (100%). Prior to recoat, perform a coating condition survey, including an adhesion test, to determine if a full recoat is required or if a topcoat reapplication is sufficient.

2.7 Tank Chime External Coating

OBSERVATION: External coating on the tank chime exhibits flaking and base metal exposure with surface corrosion.

REFERENCE: UFC 3-460-01, Section 8-3.10.

RECOMMENDATION: Provide approximately 100 ft2 of spot coating repair on the tank chime.

2.8 Tank Shell and PST Piping External Coating

OBSERVATION: External coating at the HLA/HHLA, HLCV float pilot chamber and piping, receipt, receipt thermal relief valve (TRV) crossover piping, and PST drain piping exhibits flaking, cracking, and base metal exposure with surface corrosion.

REFERENCE: UFC 3-460-01, Section 8-3.10.

RECOMMENDATION: Provide approximately 1,000 ft2 of external coating repair on the

HLA/HHLA, HLCV float pilot chamber and piping, receipt, receipt TRV crossover piping, and PST drain piping. To be completed via the recurring maintenance and minor repair (RMMR) program service order.

2.9 Access, Crossover, and Spiral Stairs External Coating

OBSERVATION: External coating for handrails and balusters provided for the dike access, pipe crossover, and spiral stairs exhibits failure with flaking, base metal exposure, and surface corrosion.

REFERENCE: UFC 3-460-03, Appendix F, Item 6.

RECOMMENDATION: Provide approximately 100 ft2 of external coating repair for the access, crossover, and spiral stairs.

2.10 Tank Fixed Roof External Coating

OBSERVATION: External coating for the tank fixed roof exhibits widespread chalking with minor surface corrosion. Chalking indicates the coating system is near the end of its life cycle. Minor instances of coating failure with flaking, base metal exposure, and surface corrosion were observed on the tank fixed roof.

REFERENCE: UFC 3-460-01, Section 8-3.10 (a).

RECOMMENDATION: Provide a full recoat of the tank fixed roof, approximately 1,200 ft2 (100%).

Prior to recoat, perform a coating condition survey, including an adhesion test, to determine if a full recoat is required or if a topcoat reapplication is sufficient.

2.11 Tank Fixed Roof Nozzle and Appurtenances External Coating

OBSERVATION: External coating on the Enraf ATG, Vito temperature/water probe, blind flange, three (3) threaded plugs, two (2) threaded caps, and the fixed roof perimeter handrail exhibit flaking and base metal exposure with surface corrosion.

REFERENCE: UFC 3-460-01, Section 8-3.10 (a).

RECOMMENDATION: Provide approximately 60 ft2 of spot coating repair at the Enraf ATG, Vito temperature/water probe, blind flange, three (3) threaded plugs, two (2) threaded caps, and the fixed roof perimeter handrail. .

2.12 Access Stair Sealant

OBSERVATION: No sealant is provided at the interface between the dike access staircase and the secondary containment wall, allowing for fluid to escape in the event of a spill.

REFERENCE: UFC 3-460-03, Section 8-10.2.1

RECOMMENDATION: Provide 24 linear feet of flexible, fuel resistant, UV-resistant sealant to two (2) access staircases. To be completed via RMMR service order.

2.13 Receipt Valves

OBSERVATION: The tank is equipped with two (2) 8-inch ball valves upstream of the HLCV at the receipt line.

REFERENCE: UFC 3-460-01, Section 3-3.1.2.

RECOMMENDATION: Replace the two (2) 8-inch ball valves upstream of the HLCV with two (2) 8-inch DB&B valves for positive isolation.

2.14 PST Piping

OBSERVATION: PST piping is provided one (1) sight flow indicator.

REFERENCE: AW 78-24-27, Sheet D.13, Detail 5.

RECOMMENDATION: Remove one (1) sight flow indicator on PST piping. Sight flow indicators are no longer used as they are potential leak paths. To be completed via the

(RMMR program service order.

2.15 Threaded Connections

OBSERVATION: PST and HLCV float pilot piping are provided threaded connections.

REFERENCE: UFC 3-460-01, Section 8-11 and 9-8 (E).

RECOMMENDATION: Provide flanged or socket welded connections for PST and HLCV piping.

Threaded connections should be avoided as they are potential leak paths.

To be completed via RMMR service order.

2.16 PST Piping

OBSERVATION: Fifteen (15) PST pipe supports are not provided with Teflon isolation, or equivalent, allowing direct metal-to-metal contact. Additionally, eight (8)

PST uni-strut pipe supports are missing brackets enabling the PST piping to freely move. Contact point corrosion was observed during inspection.

REFERENCE: UFC 3-460-03, Section 6-1.5 C, AW 78-24-33, Sheet CD.11.

RECOMMENDATION: Provide fifteen (15) PST pipe supports with Teflon isolation, or equivalent and provide eight (8) brackets at uni-strut supports for the PST. See

Recommendation 3.9.

2.17 Receipt Piping

OBSERVATION: Eleven (11) u-bolt attachments at the receipt with integrated uni-strut supports for the PST piping are not provided isolation, allowing direct metal-to-metal contact at the 8-inch receipt piping. Contact point corrosion was observed during inspection.

REFERENCE: UFC 3-460-03, Section 6-1.5 C.

RECOMMENDATION: Provide isolation at eleven (11) u-bolt attachments at the receipt line.

3. LONG-TERM RECOMMENDED REPAIRS

Long-term repairs that relate to repair/upgrade of an asset to bring it up to the current standard from the standard at time of construction. Long-term repairs represent items that should be addressed in a timely manner in order to prevent future potential risks to system operators, equipment integrity, or the adjacent environment.

3.1 Low Suction Nozzle

OBSERVATION: The low suction nozzle is not provided with a main suction branch connection.

REFERENCE: UFC 3-460-01, Table 8-1 (Z), AW 78-24-27, Sheet D.01. Detail 2.

RECOMMENDATION: Provide a branch connection between the low suction nozzle and main suction pipeline IAW AW DoD Design Standard.

3.2 Main Suction and Receipt Pipe Supports

OBSERVATION: One (1) main suction u-bolt pipe support and one (1) receipt pipe support is not anchored to the secondary containment dike floor.

REFERENCE: UFC 3-460-03, Section 6-1.5 (D), AW 78-24-33, Sheet CD.11.

RECOMMENDATION: Anchor one (1) main suction pipe support and one (1) receipt pipe support to the secondary containment dike floor.

3.3 Weld Spacing

OBSERVATION: Weld spacing for two (2) stair treads are welded within 1-inch of the shell-to-bottom weld and four (4) HLCV float pilot conduit supports are welded within 1-inch of the shell-to-bottom weld and the horizontal weld for the second shell course.

REFERENCE: API 653, Section 4.3.9.1.

RECOMMENDATION: Perform magnetic particle (MT) or dye penetrant (PT) testing IAW API 650 at two (2) stair treads and four (4) conduit supports welded within 1-inch of shell welds.

3.4 Crossover Stairs Grounding System

OBSERVATION: The crossover stairs provided for the main suction piping is not provided a grounding system integrated with the tank grounding system.

REFERENCE: AW 78-24-27, Sheet ED.02.

RECOMMENDATION: Provide the main suction crossover stairs with a grounding system integrated within the tank grounding system.

3.5 Manual Gauging Hatch

OBSERVATION: The cover for the manual gauging hatch is not provided a latch.

REFERENCE: BMP.

RECOMMENDATION: Provide a latch for the manual gauging hatch to secure the cover while not in use.

3.6 Fixed Roof Center Vent

OBSERVATION: The tank is not provided a center circulation vent at the fixed roof.

REFERENCE: API 650, Appendix H.5.2.2.2 and AW 78-24-27, Sheet D.09, Detail 2.

RECOMMENDATION: Provide a 24-inch diameter center circulation vent at the fixed roof for emergency venting.

3.7 Fixed Roof Conduit Support

OBSERVATION: Three (3) conduit supports for the Vito temperature/water probe are not sealed to the fixed roof.

REFERENCE: UFC 3-460-01, Section 8-11.

RECOMMENDATION: Fully seal three (3) conduit supports for the Vito temperature/water probe to the fixed roof. Coating failure with surface corrosion was observed at the time of inspection.

3.8 AFFF

OBSERVATION: The tank is provided an AFFF and an IFR for fire protection.

REFERENCE: UFC 3-460-01, Section 2-13.4.2.

RECOMMENDATION: Remove the AFFF piping and discharge chamber, as it is no longer in use.

Based on discussions with facility personnel, approval to remove the AFFF discharge chamber and piping has been granted by the Fire Chief.

3.9 PST System

OBSERVATION: The tank is not provided a standard PST with means of testing the level alarms and HLCV.

REFERENCE: AW 78-24-27, Sheet D.13 Detail 5.

RECOMMENDATION: Provide the tank with a PST IAW AW DoD Design Standard. The PST system should include tubing to the HLA, HHLA, and HLCV float pilot to facilitate wet testing of the chambers. See Recommendation 2.16.

3.10 Varec TLG System

OBSERVATION: The Varec TLG has one (1) conduit support bracket missing.

REFERENCE: BMP.

RECOMMENDATION: Remove the Varec TLG system from Tank 3 per the facility’s request.

3.11 Manway 1 and Manway 2 Davit Arms

OBSERVATION: Davit arms for Manway 1 and Manway 2 are not equipped with grease fittings.

REFERENCE: API 650, Section 5.8.3.5.

RECOMMENDATION: Provide Manway 1 and Manway 2 davit arms with grease fittings to allow ease of use.

3.12 Receipt Piping Flow Arrows

OBSERVATION: Flow arrows and product designation labeling for the receipt piping exhibit fading and peeling.

REFERENCE: UFC 3-460-01, Section 2-17.

RECOMMENDATION: Replace flow arrows and product designation labeling for receipt piping. To be completed via RMMR.

3.13 Spiral Staircase

OBSERVATION: The spiral staircase handrail height is 42-inches, which is greater than the

38-inch maximum allowable height per OSHA requirements.

REFERENCE: OSHA 1926.1051(c)(6)

RECOMMENDATION: Rework the spiral staircase at the tank shell, so the handrail is positioned at a height between 30 to 38-inches, meeting OSHA requirements.

3.14 HLCV Float Pilot Clearance

OBSERVATION: The clearance between the HLCV float pilot and spiral staircase handrail is approximately 21 ½-inches, less than the OSHA required 26-inch clearance.

REFERENCE: OSHA 1910.25 (d)(1).

RECOMMENDATION: Extend the stair treads or provide a work platform at the HLCV float pilot to allow for a minimum 26-inches of clear space between the spiral staircase handrail and appurtenance.

3.15 Internal Pipe Supports

OBSERVATION: Two (2) internal pipe supports for the water draw-off piping are not provided isolation.

REFERENCE: AW 78-24-27, Sheet D.08 Detail 6.

RECOMMENDATION: Provide Teflon-coated u-bolts at two (2) water draw-off supports.

3.16 Internal Receipt Diffuser

OBSERVATION: The receipt diffuser orientation is such that the flow of fuel into the tank encounters appurtenances within 180° of the diffuser opening.

REFERENCE: UFC 3-460-03, Section 6-1.5 (A); AW 78-24-27, Sheet D-08, Detail 1, Note 2

RECOMMENDATION: Rework the receipt diffuser such that the flow of fuel into the tank does not impinge on appurtenances for at least 180°.

APPENDIX A: ENGINEERING CALCULATIONS AND DRAWINGS

SUMP DETAIL

15 16 17 18

25 26 27 28

14 19

21 23

MW1

MW2

IFR LEG

LANDING PAD

(TYP.8)

ANTI-ROTATION

CABLE

(TYP.2)

LAP PATCH

(TYP.2)

PIPE SUPPORT

BEARING PLATE

(TYP.7)

VITO

TEMPERATURE/WATER

PROBE

FIXED ROOF

SUPPORT BASE

PLATE (TYP.4)

.515"

.489"

.496"

.497"

.490"

.488"

.489"

.488".484" 2'-5"

0'-10"

RECEIPT

DIFFUSER

VERTICAL ACCESS

LADDER / MANUAL

GAUGE HATCH

ENRAF ATG

CENTER SUMP

MAIN SUCTION

LOW SUCTION

WATER

DRAW-OFF

TOP VIEW

SECTION VIEW

C O

N T

R A

C T

N

O

F I L E

A M

E

D W

N

B

Y

C K

D

B

Y

D E

S I G

N E

D

B

Y

D E

S C

R I P

T I O

N

D

2 3

C

A

B

M A

R K

A P

P R

D A

T E

F I

U M

B E

R

S I Z

E

S U

B M

I T

T E

D

B

Y

P L O

T

S

C A

L E

P

L O

T

D

A T

E

D A

T E

M A

R K

D E

S C

R I P

T I O

N

D E

L I V

E R

Y

O

R D

R

SHEET

IDENTIFICATION

D A

T E

A P

P R

SHEET OF

U S

A

R M

Y

C

O R

P S

F

E

N G

I N

E E

R S

O M

A H

A

N

E

O M

A H

A

D

I S

T R

I C

T

V A

L D

O S

T A

G

A

M O

O D

Y

A

F B

T A

K

Y

O U

T

N T

S

N A

W

F

D

W

F

F

A N

S I

B

P a r k w a y

L a n e

S u i t e

P e a c h t r e e

C o r n e r s

G

A

P h o n e

F a x

J O

B

N

O

C A

W

A E

C

D A

W

N A

TANK INFORMATION

TANK NO.: TANK 3 (FACILITY 5018)

MANUFACTURER: UNKNOWN

YEAR BUILT: 1964

TANK DIAMETER: 35'-0"

TANK HEIGHT: 28'-6"

NOMINAL CAPACITY: 5,000 BBL

PRODUCT: JET-A (F-24)

PRODUCT SPECIFIC GRAVITY: 0.84

GPS COORDINATES: 30.97009°, -83.21073°

N A

B O

T T

M

Y

O U

T

A-1

C O

N T

R A

F I

M

E

D W

N

B

Y

C K

D

B

Y

D E

S I G

N E

D

B

Y

D E

S C

R I P

T I O

N

D

2 3

C

A

B

M A

R K

A P

P R

D A

T E

F I

M

B E

R

S I Z

E

S U

B M

I T

T E

D

B

Y

P L O

T

S

C A

L E

P

L O

T

D

A T

E

D A

T E

M A

R K

D E

S C

R I P

T I O

N

D E

L I V

E R

Y

O

R D

SHEET

IDENTIFICATION

D A

T E

A P

P R

SHEET OF

U S

A

R M

Y

C

O R

E

N G

I N

E E

R S

O M

A H

A

N

E

O M

A H

A

D

I S

T R

I C

T

V A

L D

O S

T A

G

A

M O

O D

Y

A

F B

T A

Y

O U

T

N T

S

N A

W

F

D

W

F

F

A N

S I

B

P a r k w a y

L a n e

S u i t e

P e a c h t r e e

C o r n e r s

G

A

P h o n e

F a x

J O

B

N

O

C A

W

A E

C

D A

W

N A

TANK INFORMATION

TANK NO.: TANK 3 (FACILITY 5018)

MANUFACTURER: UNKNOWN

YEAR BUILT: 1964

TANK DIAMETER: 35'-0"

TANK HEIGHT: 28'-6"

NOMINAL CAPACITY: 5,000 BBL

PRODUCT: JET-A (F-24)

PRODUCT SPECIFIC GRAVITY: 0.84

GPS COORDINATES: 30.97009°, -83.21073°

N A

LEGEND:

- UTT READING (INCHES)

NOTES:

1. REFER TO TABLE 1, "BOTTOM UTT MEASUREMENTS", IN

APPENDIX A FOR BOTTOM PLATE UTT MEASUREMENTS.

2. REFER TO TABLE 2, "BOTTOM CIRCUMFERENTIAL UTT

MEASUREMENTS", IN APPENDIX A FOR BOTTOM

CIRCUMFERENTIAL UTT MEASUREMENTS.

.XXX"

ROOF PERIMETER

HANDRAIL

GROUNDING

CABLE (TYP. 4)

VAREC TLG

VAREC

VAREC TLG SUPPORT

(TYP.4)

LEAK DETECTION

PORT (TYP. 4)

CONCRETE

RINGWALL

NEW

BOTTOM

ORIGINAL

BOTTOM

LLA/LLLA CHAMBER

SUPPORT (TYP. 2)

CONDUIT SUPPORT

(TYP.10)

AFFF SUPPORT

(TYP.2)

OVERFLOW VENT

(TYP.2)

1-2 1-3 1-41-1

2-1

3-1

4-1

5-1

5-4 5-2 5-3

2-2 2-3 2-4

3-43-33-2

4-4 4-2 4-3

MW1

N1

N3

N2

N4

N5

N6

N7

N8

MW2

N9

N10

N11

N12

NOZZLE

SCHEDULE

NOZZLE SIZE SHELL LAYOUT

MW1 36" MANWAY

N1 8" RECEIPT

N2 1

" LLA/LLLA

N3 1

" LLA/LLLA

N4 1

" HLA/HHLA

N5 1

" HLA/HHLA

N6 1

" HLCV FLOAT PILOT

N7 1

" HLCV FLOAT PILOT

N8 1

" THREADED PLUG

MW2 36" MANWAY

N9 16" MAIN SUCTION

N10 4" LOW SUCTION

N11 -

AFFF DISCHARGE

CHAMBER

N12 1

" WATER DRAW-OFF

4'-6"

1'-6"

6'-0"

6'-0"

6'-0"

6'-0"

TANK

NAMEPLATE

.252"

.251"

.250"

.251"

.250"

.252"

.256"

.257"

.254"

.256"

.259"

.258"

INSERT

PLATES

INSERT

PLATES

INSERT

PLATE

INSERT

PLATE

C O

N T

R A

F I

M

E

D W

N

B

Y

C K

D

B

Y

D E

S I G

N E

D

B

Y

D E

S C

R I P

T I O

N

D

2 3

C

A

B

M A

R K

A P

P R

D A

T E

F I

M

B E

R

S I Z

E

S U

B M

I T

T E

D

B

Y

P L O

T

S

C A

L E

P

L O

T

D

A T

E

D A

T E

M A

R K

D E

S C

R I P

T I O

N

D E

L I V

E R

Y

O

R D

SHEET

IDENTIFICATION

D A

T E

A P

P R

SHEET OF

U S

A

R M

Y

C

O R

E

N G

I N

E E

R S

O M

A H

A

N

E

O M

A H

A

D

I S

T R

I C

T

V A

L D

O S

T A

G

A

M O

O D

Y

A

F B

T A

Y

O U

T

N T

S

N A

W

F

D

W

F

F

A N

S I

B

P a r k w a y

L a n e

S u i t e

P e a c h t r e e

C o r n e r s

G

A

P h o n e

F a x

J O

B

N

O

C A

W

A E

C

D A

W

N A

TANK INFORMATION

TANK NO.: TANK 3 (FACILITY 5018)

MANUFACTURER: UNKNOWN

YEAR BUILT: 1964

TANK DIAMETER: 35'-0"

TANK HEIGHT: 28'-6"

NOMINAL CAPACITY: 5,000 BBL

PRODUCT: JET-A (F-24)

PRODUCT SPECIFIC GRAVITY: 0.84

GPS COORDINATES: 30.97009°, -83.21073°

N A

S H

E L

L

L

A Y

O U

T

A-2

NOTES:

1. REFER TO TABLE 3, "SHELL UTT MEASUREMENTS", IN APPENDIX

A FOR INDIVIDUAL SHELL PLATE UTT READINGS.

2. REFER TO TABLE 6, "NOZZLE / REPAD UTT MEASUREMENTS", IN

APPENDIX A FOR NOZZLE DATA.

.XXX"

LEGEND:

- UTT READING (INCHES)

SPIRAL

STAIRCASE

MANUAL GAUGING

HATCH

1 2 3 4

5 6 7

8 9

15 16

17 18

N17

N16

N19

N20

N21

N24

N25

N26

NOZZLE

SCHEDULE

NOZZLE

SIZE

FIXED ROOF LAYOUT

N13 1" THREADED CAP

N14

" THREADED PLUG

N15 1" THREADED CAP

N16 1" THREADED CAP

N17 1" VAREC TLG

N18 1" THREADED CAP

N19 6" BLIND FLANGE

N20 6" VITO TEMPERATURE/WATER PROBE

N21 2" THREADED PLUG

N22 2" THREADED PLUG

N23 72"x24" IFR INSPECTION / INSTALLATION HATCH

N24 36"x36" IFR HATCH W/ MANUAL GAUGE HATCH

N25 10" ENRAF ATG

N26 2" THREADED PLUG

N27 2" THREADED PLUG

10 11

N18

N14

N13

N15

LAP

PATCH

LAP PATCH

LAP PATCH

PERIMETER

ROOF VENT

(TYP.2)

LAP PATCH

TLG SUPPORT

BRACKET

N22

N23

N27

C O

N T

R A

F I

M

E

D W

N

B

Y

C K

D

B

Y

D E

S I G

N E

D

B

Y

D E

S C

R I P

T I O

N

D

2 3

C

A

B

M A

R K

A P

P R

D A

T E

F I

M

B E

R

S I Z

E

S U

B M

I T

T E

D

B

Y

P L O

T

S

C A

L E

P

L O

T

D

A T

E

D A

T E

M A

R K

D E

S C

R I P

T I O

N

D E

L I V

E R

Y

O

R D

SHEET

IDENTIFICATION

D A

T E

A P

P R

SHEET OF

U S

A

R M

Y

C

O R

E

N G

I N

E E

R S

O M

A H

A

N

E

O M

A H

A

D

I S

T R

I C

T

V A

L D

O S

T A

G

A

M O

O D

Y

A

F B

T A

Y

O U

T

N T

S

N A

W

F

D

W

F

F

A N

S I

B

P a r k w a y

L a n e

S u i t e

P e a c h t r e e

C o r n e r s

G

A

P h o n e

F a x

J O

B

N

O

C A

W

A E

C

D A

W

N A

TANK INFORMATION

TANK NO.: TANK 3 (FACILITY 5018)

MANUFACTURER: UNKNOWN

YEAR BUILT: 1964

TANK DIAMETER: 35'-0"

TANK HEIGHT: 28'-6"

NOMINAL CAPACITY: 5,000 BBL

PRODUCT: JET-A (F-24)

PRODUCT SPECIFIC GRAVITY: 0.84

GPS COORDINATES: 30.97009°, -83.21073°

N A

F I X

D

O

F

L

A Y

O U

T

A-3

C O

N T

R A

F I

M

E

D W

N

B

Y

C K

D

B

Y

D E

S I G

N E

D

B

Y

D E

S C

R I P

T I O

N

D

2 3

C

A

B

M A

R K

A P

P R

D A

T E

F I

M

B E

R

S I Z

E

S U

B M

I T

T E

D

B

Y

P L O

T

S

C A

L E

P

L O

T

D

A T

E

D A

T E

M A

R K

D E

S C

R I P

T I O

N

D E

L I V

E R

Y

O

R D

SHEET

IDENTIFICATION

D A

T E

A P

P R

SHEET OF

U S

A

R M

Y

C

O R

E

N G

I N

E E

R S

O M

A H

A

N

E

O M

A H

A

D

I S

T R

I C

T

V A

L D

O S

T A

G

A

M O

O D

Y

A

F B

T A

Y

O U

T

N T

S

N A

W

F

D

W

F

F

A N

S I

B

P a r k w a y

L a n e

S u i t e

P e a c h t r e e

C o r n e r s

G

A

P h o n e

F a x

J O

B

N

O

C A

W

A E

C

D A

W

N A

TANK INFORMATION

TANK NO.: TANK 3 (FACILITY 5018)

MANUFACTURER: UNKNOWN

YEAR BUILT: 1964

TANK DIAMETER: 35'-0"

TANK HEIGHT: 28'-6"

NOMINAL CAPACITY: 5,000 BBL

PRODUCT: JET-A (F-24)

PRODUCT SPECIFIC GRAVITY: 0.84

GPS COORDINATES: 30.97009°, -83.21073°

N A

LEGEND:

- SURFACE CORROSION

NOTES:

1. REFER TO TABLE 4, "FIXED ROOF UTT MEASUREMENTS",

IN APPENDIX A FOR INDIVIDUAL FIXED ROOF PLATE UTT

READINGS.

2. REFER TO TABLE 6, "NOZZLE / REPAD UTT

MEASUREMENTS", IN APPENDIX A FOR NOZZLE DATA.

TABLE 1 – BOTTOM UTT MEASUREMENTS

Plate 1 Plate 2 Plate 3 Plate 4 Plate 5 .308 .308 .306 .307 .306 .309 .304 .306 .306 .305 .308 .310 .307 .305 .305 .308 .306 .306 .303 .304 .307 .306 .306 .304 .304 Avg. .308 .306 .307 .305 .305 Plate 6 Plate 7 Plate 8 Plate 9 Plate 10 .307 .307 .301 .305 .308 .309 .307 .306 .306 .307 .307 .307 .308 .307 .306 .303 .302 .300 .305 .306 .309 .307 .306 .303 .307 Avg. .305 .304 .308 .307 .306 Plate 11 Plate 12 Plate 13 Plate 14 Plate 15 .307 .305 .307 .307 .306 .306 .310 .308 .309 .309 .305 .307 .306 .309 .311 .305 .306 .307 .307 .302 .307 .308 .310 .308 .311 Avg. .306 .307 .305 .309 .310 Plate 16 Plate 17 Plate 18 Plate 19 Plate 20 .308 .309 .307 .306 .308 .309 .307 .311 .314 .315 .309 .306 .309 .310 .315 .308 .308 .308 .309 .308 .309 .308 .311 .315 .314 Avg. .308 .307 .309 .309 .315 Plate 21 Plate 22 Plate 23 Plate 24 Plate 25 .311 .309 .315 .313 .311 .310 .313 .315 .309 .306 .311 .316 .311 .313 .309 .310 .312 .314 .314 .308 .311 .311 .314 .308 .308 Avg. .311 .314 .310 .313 .308 Plate 26 Plate 27 Plate 28

.306 .306 .307 .307 .306 .309

.309 .309 .309

.308 .310 .309 .306 .304 .310

Avg. .308 .308 .308

Thickness represented in inches.

Average bottom (Annular Plates 1-13) plate thickness: .306” Average bottom (General Plates 4-28) plate thickness: .310”

TABLE 2 – BOTTOM CIRCUMFERENTIAL UTT MEASUREMENTS

Ultrasonic Thickness Survey of Tank Floor 0' 2' 4' 6' 8' 10' 12' 14' 16' 18' 20' 22' 24' 26' 28' 30' 32'

.303 .305 .301 .305 .305 .304 .305 .305 .304 .303 .303 .304 .305 .306 .305 .305 .304 34' 36' 38' 40' 42' 44' 46' 48' 50' 52' 54' 56' 58' 60' 62' 64' 66'

.307 .305 .305 .306 .304 .302 .304 .306 .307 .307 .307 .306 .304 .307 .307 .306 .307 68' 70' 72' 74' 76' 78' 80' 82' 84' 86' 88' 90' 92' 94' 96' 98' 100'

.308 .306 .306 .307 .304 .308 .311 .303 .307 .308 .308 .308 .307 .303 .304 .306 .305 102' 104' 106' 108' 110' .305 .307 .306 .305 .305 0’ = Manway 1 Locations are within 3-inches of the shell-to-bottom weld. Thickness measurements are taken at 2 feet increments around the circumference of the tank.

Thickness measurements are in inches.

Average Bottom Circumferential Readings: .305”

TABLE 3 - SHELL UTT MEASUREMENTS

Shell Course

Plate 5-1 Plate 5-2 Plate 5-3 Plate 5-4 .190 .201 .201 .194 .204 .198 .199 .200 .197 .195

Avg. .198 Circumferential Weld C5

Shell Course

Plate 4-1 Plate 4-2 Plate 4-3 Plate 4-4 .185 .193 .193 .188 .194 .194 .191 .193 .192

.191 Avg. .191

Circumferential Weld C4

Shell Course

Plate 3-1 Plate 3-2 Plate 3-3 Plate 3-4 .179 .189 .189 .184 .190 .189 .189 .189 .194

.182 Avg. .187

Circumferential Weld C3

Shell Course

Plate 2-1 Plate 2-2 Plate 2-3 Plate 2-4 .184 .188 .186 .186 .188 .186 .187 .187 .184

.180 Avg. .186

Circumferential Weld C2

Shell Course

Plate 1-1 Plate 1-2 Plate 1-3 Plate 1-4 .256 .252 .261 .284 .252 .249 .241 .248 .255 .241 .244 .249 .251 .254 .262 .255 .252 .248 .240 .248 .256 .242 .247 .252 .247 .248 .257 .247 .245 .243 .238 .243 .250 .240 .239 .246

Avg. .254 .253 .247 .244 Circumferential Weld C1

Thickness represented in inches.

Average shell course 1: .250” Average shell course 2: .186” Average shell course 3: .187” Average shell course 4: .191” Average shell course 5: .198”

TABLE 4 – FIXED ROOF UTT MEASUREMENTS

Plate 1 Plate 2 Plate 3 Plate 4 Plate 5

.201 .199 .194 .193 .200 .197 .184 .183 .199 .202

.199 .195 .203 .181 .204

.198 .200 .192 .192 .197 .200 .186 .181 .202 .200

Avg. .199 .193 .199 .183 .201

Plate 6 Plate 7 Plate 8 Plate 9 Plate 10

.202 .198 .194 .196 .183 .182 .200 .198 .197 .196

.205 .196 .199 .204 .200

.199 .198 .193 .194 .199 .200 .199 .202 .196 .197

Avg. .200 .195 .193 .201 .197

Plate 11 Plate 12 Plate 13 Plate 14 Plate 15

.189 .186 .199 .202 .197 .195 .194 .193 .187 .186

.191 .202 .198 .193 .188

.183 .187 .207 .200 .193 .202 .195 .190 .189 .190

Avg. .187 .202 .197 .193 .188

Plate 16 Plate 17 Plate 18 .202 .199 .193 .197 .214 .206 .207 .198 .206 .203 .202 .193 .194 .207 .199 Avg. .203 .195 .206

Thickness represented in inches.

Average fixed roof: .196”

TABLE 5 – TANK DFT MEASUREMENTS

External Shell Coating Thickness Average Standard Deviation Number of Readings Minimum Maximum

9.91 1.49 20 7.61 13.96

Fixed Roof Coating Thickness

14.39 2.38 15 10.60 18.13

Internal Shell Coating Thickness

15.80 4.93 20 8.43 32.02

Bottom Coating Thickness

135.53 2.05 15 10.00 17.61

Thicknesses are represented in mils.

TABLE 6 - NOZZLE / REPAD UTT MEASUREMENTS

Nozzle Nozzle Size

(Diameter or Width/Height)

Repad Shape

Repad Size

(W X H)

Repad Thickness

Nozzle Thickness H1 H2

Nozzle Location (Measured circumferentially from Manway 1)

Notes

0⁰ 90⁰ 180⁰ 270⁰

MW1 36" B 72" .252 .245 .248 .244 .248 3'-7'' 0'-5 1/2" 0'-0" Manway 1

N1 8'' D 23" x 26" .262 .486 .493 .505 .490 1'-3'' - 20'-6" Receipt

N2 1 ½” - - - TH TH TH TH 4'-1'' 4'- 1/2" 41'-8" LLA/LLLA

N3 1 ½” - - - TH TH…