Attachment K - Benning-Fac M6347 (Tank 1)-FINAL-2017.pdf

US Army Corps of Engineers Omaha District

API 653 In-Service Draft Inspection Report

Fort Benning, Georgia

FAC M6347

Tank 1

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

USACE POL-TCX

22 March 2017

API 653 In-Service Inspection Report Fort Benning, Georgia

Table of Contents

ACRONYMS AND ABBREVIATIONS

GENERAL SUMMARY

THIS INSPECTION

PREVIOUS INSPECTION DATES

RECOMMENDED FUTURE INSPECTION DATES

GENERAL TANK INFORMATION

A. GENERAL PROJECT INFORMATION

1. API 653 Inspection

2. Site Information

B. TANK INSPECTION COMMENTS

1. Tank Construction

2. Tank Foundation

3. Tank Shell

4. Tank Appurtenances

5. Tank Coating

6. Tank Piping System

7. Fire Protection System

8. Secondary Containment

C. FINDINGS AND RECOMMENDATIONS

1. Mandatory Repairs per API 653, UFC 3-460-01, or AW 78-24-27 Standards

2. Significant Findings per API 653, UFC 3-460-01, or AW 78-24-27 Standards

3. Repairs to Fully Comply with API 653, UFC 3-460-01, or AW 78-24-27 Standards

4. Recommended Repairs as Part of Regular Maintenance

APPENDIX A: ENGINEERING CALCULATIONS AND DRAWINGS

SHELL SETTLEMENT SURVEY

SHELL THICKNESS CALCULATIONS

SHELL/ROOF ULTRASONIC THICKNESS MEASUREMENTS

TANK DRAWINGS

OSHA ACCESS STRUCTURE REPORT

APPENDIX B: API 653 CHECKLISTS FOR TANK INSPECTIONS

APPENDIX C: PHOTOGRAPHS

ACRONYMS AND ABBREVIATIONS

API American Petroleum Institute

ASME American Society of Mechanical Engineers

ASNT American Society of Non-Destructive Testing

ATG Automatic Tank Gauge

BBL Barrel

CFR Code of Federal Regulations

CP Cathodic Protection

DFT Dry Film Thickness

FAC Facility

HLA High Level Alarm

HLCV High Level Control Valve

HHLA High-High Level Alarm

LLA Low Level Alarm

LLLA Low-Low Level Alarm

MFL Magnetic Flux Leakage

MFE Magnetic Flux Exclusion

MT Magnetic Particle Testing

NA Not Applicable

NACE National Association of Corrosion Engineers

NDT Non-Destructive Testing

NFPA National Fire Protection Association

PSI Pounds per Square Inch

PT Penetrant Testing

P/V Pressure/Vacuum

RP Recommended Practice

PST Product Saver Tank

RT Radiography Testing

TML Thickness Measurement Location

TRV Thermal Relief Valve

UFC Unified Facilities Criteria

UFGS Unified Facilities Guide Specifications

UT Ultrasonic Testing

VT Visual Testing

GENERAL SUMMARY

Austin Brockenbrough & Associates, LLP (Brockenbrough) was retained by Omaha District USACE under Contract No. W9128F-12-D-0006 Delivery Order 0021 to perform API Standard 653 In-Service Inspections. As required by this task, Brockenbrough executed a tank inspection site visit to Fort Benning, located at Columbus, Georgia. An API 653 In-Service (visual external) Inspection was conducted for Tank Facility No. M6347 (Tank 1) on January 04, 2017. This inspection was performed in accordance with API Standard 653, “Tank Inspection, Repair, Alteration, and Reconstruction,” and the referenced contract. The confined space between the internal floating roof and the fixed roof was not entered during the inspection. All observations made during this in-service (visual external) inspection were made from the exterior of the tank.

Tank M6347 is a 31-foot diameter by 42-foot and 3-inch tall, single wall, vertical, field erected tank with a nominal storage capacity of 5,000 barrels of jet fuel (F-24). The tank was fabricated by Fisher Tank Company in 1992 (per the manufacturer’s tank data plate). Secondary containment is provided by a concrete containment area with vertical concrete dike walls shared by five other aboveground storage tanks. The previous API 653 Out-of-Service Inspection report indicates that this tank has a flexible membrane liner underneath the tank bottom as a release prevention barrier. Since there are no as-built drawings of the tank available at this time and the tank construction slightly predates the earliest known DOD AST Standard, the presence of a release prevention barrier could not be confirmed. However, the four foundation drains suggest that the tank is at least equipped with a concrete slab that could act as a barrier. Also, the cathodic protection conduit penetrates the secondary containment basin rather than the concrete ringwall. This suggests that the cathodic protection system may be ineffective for the tank bottom, but is designed to protect the underground piping. Details of the tank construction and appurtenances are included in Section ‘B’.

A mandatory repair was noted that needs immediate attention. If the repair is not performed within the next 30 days, all six tanks within the shared secondary containment area should be taken out-of-service until the deficiency is corrected. This repair includes providing rubber caps on the six 4-inch funnel drains in the dike area. Additional noted deficiencies are discussed in more detail in Section ‘C’, and should be addressed in a timely manner.

Photographs of the tank are included in Appendix ‘C’.

The next API Standard 653 In-Service (visual external) Inspection should be performed by an API 653 Inspector by January 2022. The next ultrasonic thickness inspection of the shell should be performed by October 2026. A previous out-of-service inspection report indicates that the tank was inspected in October, 2011. While the current version of UFC 3-460-03 requires the next out-of-service inspection occur after 10 years, an upcoming revision allows the frequency to be extended as determined by a certified API 653 tank inspector. As the tank was inspected in October 2011, we recommend the next API Standard 653 Out-Of-Service (internal and external) Inspection should be performed by October 2031. This inspection should include an external and internal inspection and include an examination of the tank bottom by magnetic flux leakage (MFL or MFE) technology and an ultrasonic thickness inspection of the tank shell. This inspection should include a thorough code compliance evaluation as well.

GENERAL TANK INFORMATION

ITEM DESCRIPTION

Owner U.S. Army

Location Fort Benning

Facility Number Facility M6347

Tank Number Tank 1

State / Country Georgia / U.S.A.

City Columbus

Inspection Date January 4, 2017

Tank Manufacturer Fisher Tank Company (Per Tank Data Plate)

Design Standard API 650, 8th Edition (Per Tank Data Plate)

Date of Construction

1992 (Per Tank Data Plate)

Tank Contents Jet Fuel (F-24)

Tank Serial Number

Unknown

Tank Diameter 31’-0” (Per Tank Data Plate)

Shell Height 42’-3” (Per Tank Data Plate)

Product Height 37’-5 1/2” – Safe Fill Height (Limited by Overflow Vents)

Tank Capacity 5,000 barrels (Per Tank Data Plate)

Foundation Concrete Ringwall

Construction

Bottom Cone down Lap Welded Steel Bottom with Center Sump (Per Previous Inspection Report)

Shell (5) Butt Welded Shell Courses

Floating Roof Internal Floating Pan (Per Previous Inspection Report)

Fixed Roof Self-supported Fixed Steel Roof

Material

Bottom Carbon steel of unknown grade

Shell Carbon steel of unknown grade

Floating Roof Aluminum (Per Previous Inspection Report)

Fixed Roof Carbon steel of unknown grade

Cathodic Protection Impressed Current Cathodic Protection System (Current configuration of this system might not be effective for protection of tank bottom)

Interior Coating System

Epoxy-Epoxy-Epoxy (assumed)

Exterior Coating System

Epoxy-Epoxy-Polyurethane (assumed)

Level Gauging Varec Tape Level Gauge, MTS ATG System, 2 1/2-inch Manual Gauge Hatch

Overfill Protection HLCV; Independent HHLA & HLA with a local alarm and annunciator panel

Piping Receipt 8” Carbon Steel

Issue 10” (Issue) & 6” (Recirculation) Carbon Steel

Low Suction 6” Carbon Steel

AFFF 4” Carbon Steel

Water Draw-Off 1.5” Carbon Steel

Level Alarms Independent high-high, high, low, and low-low level alarms, ATG Alarms

Type of Internal Floating Roof

Aluminum honeycomb pan

A. GENERAL PROJECT INFORMATION

1. API 653 Inspection

This project will perform API 653 Inspections of various tanks at facilities throughout the United States.

Additional consideration is given to federal, state, and local regulations as well as applicable military criteria and general industry standards.

For Facility M6347, an API Standard 653 In‐service (visual external) Inspection was performed.

2. Site Information

On January 04, 2017 Brockenbrough performed an API 653 In‐Service (visual external) Inspection of

Tank M6347 located at Fort Benning, Columbus, Georgia. Fort Benning is home of the United States

Army Maneuver Center of Excellence, the United States Army Armor School, United States Army

Infantry School, the Western Hemisphere Institute for Security Cooperation, and many other additional tenant units. Fort Benning supports more than 120,000 active-duty military, family members, reserve component soldiers, retirees, and civilian employees on a daily basis. It is a power projection platform, and possesses the capability to deploy combat-ready forces by air, rail, and highway.

B. TANK INSPECTION COMMENTS

1. Tank Construction

Tank M6347 is a nominal 5,000 barrel, 31-foot diameter by 42-foot and 3-inch tall, jet fuel (F-24), aboveground vertical storage tank. Per the information on the tank data plate, the tank was constructed in 1992 by Fisher Tank Company to API 650 design standard, 8th Edition. As‐built drawings of the original construction are not available at this time.

2. Tank Foundation

The tank rests on an 18-inch high concrete ringwall foundation. Per the previous API 653 out-of-service inspection report, this tank is equipped with a release prevention barrier (flexible membrane liner) underneath the tank. However, this could not be verified and the drain pipes in the foundation ringwall suggest that the tank is at least equipped with a concrete slab that could act as a barrier. The foundation was visually evaluated during the inspection for broken concrete, spalling, cracks, and vegetation against the bottom of the tank. The concrete ringwall was found to be in good condition overall. The bottom-to-foundation seal appears to have failed. A shell settlement survey was performed during the inspection in accordance with Appendix B of API Standard 653 and was found to be acceptable. Settlement results are listed in Appendix A.

3. Tank Shell

The vertical and cylindrical shell consists of five butt‐welded courses. The exterior of the shell was visually inspected and evaluated for plumbness, roundness, peaking and banding. The coating was also evaluated for deterioration. Minor coating failure and corrosion on the tank bottom extension and shell-to-bottom weld was observed and the tank shell is covered with mold and algae. The out-of-service external inspection performed in October 2011 included ultrasonic thickness measurements of the shell and indicated the shell had more than 30 years of remaining life at that time. As the tank is used to store oil, deterioration of the interior of the shell since the previous inspection was performed is extremely unlikely. API 653 recommends ultrasonic thickness measurements of the shell be taken at least every 15 years.

4. Tank Appurtenances

a. Tank Roof

The tank is constructed with a self-supported butt-welded fixed roof. Isolated areas of coating failure and corrosion were observed on the roof, center vent, perimeter guardrail, flanges, manholes, nozzles, nuts, and bolts. The tank’s steel, butt-welded dome roof is covered with mold and algae. Additionally, corrosion staining from unistrut conduit supports was observed in several locations on the roof.

b. Venting

This tank features a 24-inch center vent and four raised inspection/circulation hatches around the perimeter of the tank. These vent/hatches provide adequate venting capacity based on the size of the tank. The tank is also equipped with an internal floating pan for vapor control.

c. Gauging

The tank’s MTS ATG is installed through a 2 1/2-inch nozzle mounted on an 8-inch nozzle located on the 36-inch manhole cover over the 8-inch leg of the internal ladder. Manual gauging may be performed through another 2 1/2-inch gauge well/sample hatch nozzle adjacent to the ATG on the

8-inch nozzle, also over the 8-inch leg of the internal ladder. The tank also has a Varec tape level gauge which is not working properly and gives a significantly different reading than the ATG. The tape hangs up and was difficult to test indicating that it could possibly be attached to the floating pan. In addition, the reading window was obscured by condensation. This could be due to the tape gauge elbows not being fastened and allowing moisture in.

d. Level Alarms

The high level alarm chamber is mounted on the exterior of the tank shell and is accessible from the circumferential stairway. The tank is equipped with Scully low-low, low, high and high-high level alarms independent of the tank gauging system as is required by military criteria. A third high level alarm is mounted on the cover of the roof manhole over the 2-inch leg of the internal ladder.

e. Stairs and Platforms

The tank’s steel roof is accessible by a circumferential stairway mounted on the shell of the tank.

Due to the equipment mounted on the cover of the roof manhole, the internal ladder is difficult to access. Coating failure and corrosion was observed on the stairway, handrails, and the platforms.

The bottom step of the circumferential stairway is approximately 23 inches above the concrete dike floor. OSHA requires the rise of the step to be consistent with the rest of the stairway, and the rise on the other steps is 8 inches. The width of the steps and the height of the handrails appear to be in general compliance with OSHA criteria.

f. Grounding and Bonding

There are two grounding cables connected to ground lugs welded to the tank shell.

5. Tank Coating

The interior coating system of the tank is assumed to be epoxy-epoxy-epoxy. The external coating system appeared to be a standard military coating system (epoxy-epoxy-polyurethane). The exterior of the shell was last coated in February 2006 per the previous API 653 out-of-service inspection report.

The exterior coating system on the tank shell was found to be in good condition overall, although there was some mold and algae growth on the shell. There was extensive mold and algae growth observed on the roof and roof appurtenances, and the coating was peeling with evidence of corrosion.

6. Tank Piping System

Fuel is received through 8‐inch carbon steel piping from Truck Off-load Station and is issued through

10-inch carbon steel piping to the Truck Fillstands. There is also a 6-inch carbon steel recirculation pipe coming to and from the tank. General coating failure and minor surface corrosion was observed on the tank receipt, issue, and recirculation piping.

7. Fire Protection System

There are several fire hydrants noted within 300 feet of this tank. There is also an Aqueous Film

Forming Foam (AFFF) system installed. Coating failure and minor surface corrosion was observed on the AFFF chamber and associated piping.

8. Secondary Containment

The tank sits within a concrete secondary containment area with vertical concrete walls. The secondary containment floor is sloped to a swale approximately 6 feet from the tank to allow for drainage away from the tank, but not to the dike wall as required by NFPA 30. The secondary containment was visually evaluated during the inspection. The secondary containment expansion joint seals have failed. There is a small amount of leaves and vegetation located in the secondary containment area. The product piping is located over the drainage swale. The containment is of sufficient size to contain a total tank loss. However, the 4-inch valve under the funnel for the product saver tank drain is frozen in the half open position, rendering the secondary containment ineffective.

C. FINDINGS AND RECOMMENDATIONS

Tank M6347 was found to be in generally good condition. The tank is fully serviceable. However, there is one mandatory repair that requires immediate attention. Also, there were also several items observed that are not in full compliance with federal, state, and local codes or military criteria. For basis of the estimated costs, the total for each repair is a rough order of magnitude cost that includes the cost to perform the repair and limited contractor mark-ups. These totals do not include mobilization to the site, supervision, inspection, and overhead, or other construction expenses.

1. MANDATORY REPAIRS per API 653, UFC 3-460-01, or AW 78-24-27 Standards

Mandatory repairs represent items that require immediate attention in order to prevent imminent risk to system operators, equipment integrity, or the adjacent environment. If the following repair is not performed within the next 30 days, all six tanks should be taken out-of-service until the deficiency is corrected.

a. Provide Rubber Caps

OBSERVATION: The 4-inch ball valve on the funnel drain for the product saver tank for Tank M6347 is frozen and inoperable. Note that there are six such funnel drains in total for the product saver tanks for each of the respective tanks in the shared secondary containment area.

CODE REFERENCE: 29 CFR 112 & NFPA 30 Paragraph 22.11.2 require effective secondary containment.

RECOMMENDATION: The six 4-inch funnel drains in the secondary containment area should be fitted with tightly fitting rubber caps, such as Ferco Cap, to prevent fuel from breaching the secondary containment in the event of a catastrophic failure of any of the six tanks. If the repair is not performed within the next 30 days, all six tanks should be taken out of service.

ESTIMATED COST: $3,000

2. SIGNIFICANT FINDINGS per API 653, UFC 3-460-01, or AW 78-24-27 Standards

The following information identifies the significant findings found during the tank inspection.

a. Repair Coating System on Tank and Associated Piping Equipment

OBSERVATION: Localized coating failure and corrosion were observed at several areas on the tank bottom extension, circumferential stairway steps, top and intermediate platform landings and platform frames, tank roof plates, roof guardrail, and roof appurtenances. Many areas of the roof nozzle flanges, nozzle piping, roof center vent, etc. were found to be corroding. Isolated coating failure and corrosion staining from unistrut conduit supports were also observed on the tank roof.

The nuts and bolts on one of the shell manholes are corroded. The coating system on the associated tank piping and the dike access platform has deteriorated and failed as well.

CODE REFERENCE: UFC 3-460-01, Section 8-3.10, requires the exterior of fuel storage tanks and appurtenances to be coated.

RECOMMENDATION: Remove corrosion from all the isolated areas of deterioration. Clean and prep all the areas that require coating repairs and repair the coating system per military criteria. The nuts and bolts on the shell manhole should be removed and replaced with corrosion resistant nuts and bolts.

ESTIMATED COST: $50,000

b. Replace Bottom-to-Foundation Seal

OBSERVATION: The tank bottom-to-foundation seal does not appear to be installed in accordance with the latest edition of DOD Standard Design AW 78-24-27 and has failed along the perimeter of the tank.

CODE REFERENCE: UFC 3-460-03, Section 8-4.10 B, requires the seal to be maintained in good working order to prevent corrosion of the underside of the tank bottom.

RECOMMENDATION: Remove the tank bottom-to-foundation seal. Prep and coat the tank bottom extension and replace the tank bottom-to-foundation seal per the latest edition of DOD Standard

Design AW 78-24-27.

ESTIMATED COST: $10,000

c. Modify Bottom Stairway Step

OBSERVATION: The bottom stair of the circumferential stairway is approximately 23 inches above the dike floor, while the rise between steps for the rest of the stairwell is approximately 8 inches.

CODE REFERENCE: OSHA 29 CFR 1910.24 (f) requires the rise of stairway steps to be uniform throughout its entire length, including at its foundation.

RECOMMENDATION: Ensure that the rise of the stairs of the circumferential stairway is uniform throughout its entire length by installing additional concrete steps at the base of the circumferential stair(s) per current OSHA regulations.

ESTIMATED COST: $20,000

d. Seal Weld Tank Appurtenances

OBSERVATION: The top and intermediate landing platform deck plates are not seal welded to the platform frames. The conduit supports (unistrut) on the tank roof are also not seal welded. There is also an abandoned unistrut on the roof. There is coating failure and accelerated corrosion present at these locations where there are no welds present. Rust is streaking from these areas.

CODE REFERENCE: API 650, paragraph 5.1.3.6.2 and UFC 3-460-01, paragraph 8-11 require tank attachments (appurtenances) to be seal welded to prevent corrosion and rust streaking.

RECOMMENDATION: Seal weld top and intermediate landing platform deck plates to the platform frame to prevent further corrosion of the steel.

ESTIMATED COST: $25,000

e. Upgrade Thermal Relief System

OBSERVATION: The existing thermal relief system set pressures (175 psi) do not coordinate with the overall system operating pressures (73 psi, 200’ TDH, receipt). Also, there is threaded piping and fittings in several areas of the thermal relief piping system.

CODE REFERENCE: UFC 3-460-01 paragraph 9-8 e) requires welded or flanged connections for steel pipe and equipment. UFC 3-460-01 paragraph 9-8 j) requires socket-welded connections for piping

2 inches or smaller in diameter.

RECOMMENDATION: Assess and adjust the thermal relief valve set pressures in conjunction with overall system pressures for proper operation. Replace all threaded piping and fittings with welded carbon steel piping. Apply a coating system to the new piping in accordance with current military criteria.

ESTIMATES COST: $10,000

f. Demolish AFFF System

OBSERVATION: The firefighting system is no longer needed, is a source of deterioration, and its presence increases the maintenance requirement for the tank and the fire department.

CODE REFERENCE: NFPA 30 paragraph 22.8.2, exempts tanks storing Class II and Class III liquids from fire extinguishing system requirements. UFC 3-460-01 does not require AFFF systems on tanks storing Class II and Class III liquids.

RECOMMENDATION: During the next tank outage, demolish the AFFF system and supports.

ESTIMATED COST: $10,000

g. Clean and Reinstall Manufacturer’s Nameplate

OBSERVATION: The existing manufacturer’s nameplate has fallen off and is painted over.

CODE REFERENCE: UFC 3-460-01 paragraph 8-3.15 requires nameplates for all aboveground storage tanks in accordance with API Standard 650 Section 10.1 Nameplates.

RECOMMENDATION: Clean and reinstall the manufacturer’s nameplate.

ESTIMATED COST: $1,000

h. Replace the Joint Sealants within the Dike Containment Area

OBSERVATION: The majority of the concrete secondary containment expansion joint seals have failed.

CODE REFERENCE: UFC 3-460-01 paragraph 8-14.5 requires reinforced concrete dikes to resist and contain the full hydrostatic load when filled to capacity. Joint sealant failure and concrete cracking and spalls may prevent the full capacity from being contained.

RECOMMENDATION: Replace the concrete expansion joint sealants throughout the entire secondary containment area.

i. Repair or Replace Automatic Tank Gauging (ATG) System

OBSERVATION: The existing ATG system does not appear to show accurate product level readings and is inconsistent.

CODE REFERENCE: UFC 3-460-01 Table 8-1 p) requires an ATG system for all tanks that complies with API MPMS Chapter 3 Tank Gauging.

RECOMMENDATION: Repair or replace the ATG system to read accurate product level readings in accordance with current military criteria.

ESTIMATES COST: $5,000

j. Provide New Tape Level Gauge System

OBSERVATION: The existing tape level gauge system has deteriorated. The tape is too tight and tends to hang up during tank roof movement, possibly because the tape is attached directly to the pan. Also, the tape gauge elbow cover is not fastened and screws on the cover are only partly installed resulting in a gap between the elbow and the cover and condensation inside the display window.

CODE REFERENCE: UFC 3-460-01 Table 8-1 o) requires a liquid level gauge calibrated in 1/16-inch graduations mounted at 60 inches above the walking surface.

RECOMMENDATION: Remove the existing tape level gauge system. Provide a new tape level gauge system in accordance with current military criteria and manufacturers instructions. Ensure the tape is not attached to the pan.

ESTIMATES COST: $5,000

k. Replace the Roof Inspection Hatch/ Circulation Vents

OBSERVATION: The roof inspection hatch/circulation vent openings are too high to be used for inspection. Also, the covers and latches on the inspection hatches/vents have been painted shut and therefore, cannot be opened for inspection and maintenance.

CODE REFERENCE: UFC 3-460-01, Table 8-1 Item h and AW 78-24-27 require that the tank roof be provided with four roof inspection hatch/ circulation vents.

RECOMMENDATION: Replace the four roof inspection hatch/ circulation vents in accordance with

DoD Standard Design AW 78-24-27.

ESTIMATES COST: $20,000

l. Repair Spalled Concrete Pipe Support

OBSERVATION: The concrete pipe support for the 6-inch recirculation line is spalled in a few locations.

CODE REFERENCE: N/A

RECOMMENDATION: Repair the concrete pipe support to prevent further deterioration and spalling.

ESTIMATES COST: $1,000

m. Provide Pipe Crossovers

OBSERVATION: Much of the tank is difficult to access due to the amount of piping within the dike area. This makes it necessary for personnel to crawl under or climb over the piping to access the product saver tank and other tank appurtenances for purposes of inspection and maintenance.

CODE REFERENCE: EM 385-1-1 paragraph 01.A.01 and OSHA require safe access to working areas.

RECOMMENDATION: Provide pipe crossovers wherever necessary to facilitate access to the tank and other appurtenances.

n. Provide NFPA Hazard Label

OBSERVATION: The tank is not labeled with a NFPA hazard warning label.

CODE REFERENCE: NFPA 30, paragraph 21.7.2.1 requires ASTs to be labeled in accordance with

NFPA 704.

RECOMMENDATION: Provide a new NFPA hazard warning label in accordance with NFPA 704.

ESTIMATES COST: $500

o. Upgrade Water Draw-off Piping System

OBSERVATION: The coating system on the water draw-off piping has deteriorated and failed. Also, there is threaded piping and fittings in several areas of the water draw-off piping system.

CODE REFERENCE: UFC 3-460-01, Section 8-3.10, requires the exterior of fuel storage tanks and appurtenances to be coated. UFC 3-460-01 paragraph 9-8 e) requires welded or flanged connections for steel pipe and equipment. UFC 3-460-01 paragraph 9-8 j) requires socket-welded connections for piping 2 inches or smaller in diameter.

RECOMMENDATION: Remove and replace all threaded piping and fittings with welded carbon steel piping and fittings. Remove the coating system on the existing piping system. Provide a new pipe coating system in accordance with current military criteria.

p. Replace Ball Valve on Product Saver Tank Drain

OBSERVATION: The 4-inch ball valve on the funnel drain under the product saver tank is frozen and inoperable.

CODE REFERENCE: N/A

RECOMMENDATION: Replace the 4-inch ball valve on the funnel drain under the product saver tank.

ESTIMATES COST: $3,000

3. RECOMMENDED REPAIRS as Part of Regular Maintenance

Recommended 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.

a. Remove Mold and Algae

OBSERVATION: There is mold and algae growing on the tank roof, roof appurtenances, on and around the circumferential stairway, etc. The mold and algae may cause degradation of the exterior.

CODE REFERENCE: UFC 3-460-01, Section 8-3.10 requires the exterior of fuel storage tanks to be coated.

RECOMMENDATION: Before coating repairs are performed, pressure wash the exterior of the tank and apply a mold and algae inhibitor periodically.

ESTIMATED COSTS: $2,500

b. Provide Hold-Off Distance Marker at Sampling/Gauging Hatch

OBSERVATION: There are no hold-off distances painted or stenciled on the sampling/gauging hatch.

CODE REFERENCE: API 653 In-Service Inspection Checklist, C.1.5.2b.

RECOMMENDATION: Provide stencil indicating the hold-off distances and markings adjacent to or directly on the sampling/gauging hatch.

c. Remove Vegetation within the Dike Area

OBSERVATION: There is buildup of dried leaves and other vegetation in the dike area.

CODE REFERENCE: NFPA 30, paragraph 6.9.4 requires dike areas to be kept free of weeds and other unnecessary combustible materials. UFC 3-460-03, 8-4.3.1, 8-10.2.1, 8-10-3.1,8-10.5.1, and UFC 3-

460-03, Appendix C requires vegetation to be removed from dike areas in addition to applying an herbicide.

RECOMMENDATION: Remove all vegetation from the dike area and perform regular maintenance to prevent deterioration of the containment slab. Apply an herbicide on a regular basis to prevent any future growth/vegetation.

d. Inspect and Repair Floating Pan and Seals

OBSERVATION: During the inspection, smell of fuel from the center vent was noted. This may indicate failure of the perimeter seals, penetration seals, and/or pan adhesives. The pan is 25 years old and likely at the end of its useful life. The previous out-of-service inspection report indicated that the foam log perimeter seals were deteriorated and a record of repair is not available.

CODE REFERENCE: N/A

RECOMMENDATION: The floating pan needs to be inspected by the manufacturer at the next tank cleaning. Replacement of seals and/or the pan maybe required.

4. REPAIRS to Fully Comply with API 653, UFC 3-460-01, or AW 78-24-27 Standards

These items represent repairs and/or upgrades that could be performed to bring the tank into full compliance with current standards, but that do not represent potential risks to system operators, equipment integrity, or the adjacent environment. Our recommendations to perform or not to perform these repairs and/or upgrades take into consideration the cost of the repair, the operational benefit of the repairs, the age of the tank/system, operator safety, environmental risks, and equipment integrity.

a. Monitor Product Nozzles

OBSERVATION: Some of the product nozzle reinforcing pads are located approximately 1-inch to 2 inches from the tank bottom. This does not fulfill the minimum distance requirement (3-inch) as listed in API 650.

CODE REFERENCE: API 650 Figure 5-6 lists the minimum distance requirements of shell nozzle reinforcing pads from the tank bottom.

RECOMMENDATION: In future inspections, continue to monitor the condition of the welds where the distance between the shell nozzle reinforcing plates and the shell-to-bottom weld is less than 3 inches.

b. Modify Secondary Containment Basin

OBSERVATION: Some of the carbon steel product piping is routed directly over the drainage swale.

The drainage swale is approximately 6 feet from the tank.

CODE REFERENCE: NFPA 30, paragraphs 22.11.1.1 & 22.12.2.1 require drainage to be provided to prevent accumulation of any liquid under piping by providing a slope of not less than 1 percent away from the piping for at least 50 feet or to the bottom of the dike.

RECOMMENDATION: Modify the secondary containment basin to provide drainage away from the piping and the tank as required by NFPA 30.

c. Modify High Level Control Valve Float Chamber

OBSERVATION: The high level alarm float chamber is not testable.

CODE REFERENCE: AW 78-24-27 Tank Standard requires the high level control valve float chamber to be testable.

RECOMMENDATION: Modify the high level control valve float chamber so that it can be tested periodically.

d. Monitor Upper Shell Manhole

OBSERVATION: The upper manhole reinforcing pad is cut back from the circumferential stairway attachment welds to prevent overlap. Also, the upper manhole reinforcing pad overlaps the horizontal weld of the tank shell by 1-inch.

CODE REFERENCE: API 650 Figure 5-6 lists the minimum distance/ overlap requirement of shell nozzle reinforcing pads from horizontal welds as 3”. Cutting of the reinforcing pad compromises the integrity of the shell manhole nozzle.

RECOMMENDATION: As the thickness of the shell is greater than twice the required thickness, the shell is considered adequately reinforced without the reinforcing plate. Therefore, no repairs are required at this time. In future inspections, continue to monitor the upper shell manhole where the reinforcing pad overlaps the horizontal weld by less than three inches.

Swale

APPENDIX A: ENGINEERING CALCULATIONS AND DRAWINGS

SHELL SETTLEMENT SURVEY

Austin Brockenbrough & Associates, L.L.P.

Job No. 16-074.03

Location: Fort Benning

Date: 03/02/2017

Subject: Tank M6347 - Shell Settlement Evaluation By: Daniel Caldwell

API 653 Appendix B Optimum cosine curve, B 2.2.4.e)

Z = a + b x cos(theta + c)

Diameter (D) = 31 (ft)

Number of equally spaced data points (ft)=

L = Arc length between measurement points (ft) = 12.17 Tank Height (H) = 42.3 (ft)

Relative elevation of chime.

* Z U S 0 -45.06 0.00 0.07 0.07 0.13 1 -44.88 0.19 0.09 -0.09 -0.11 2 -44.88 0.19 0.15 -0.04 0.06 3 -44.75 0.31 0.20 -0.11 -0.11 4 -44.88 0.19 0.22 0.04 0.02 5 -45.00 0.06 0.20 0.14 0.14 6 -44.88 0.19 0.15 -0.04 -0.09 7 -44.94 0.13 0.09 -0.03 -0.05 8 -45.06 0.00 0.07 0.07 0.04

Maximum out-of-plane deflection = 0.14

* = measured elevation

*HI (Height of Instrument) Z = calculated ridged body tilt (in) U = out-of-plane settlement = S = out-of-plane deflection z-y

Y = yield sterength of shell material (PSI) =

30,000 E = Youngs modulas of elasticity (lbf/in2) =

29*10^6

S allowable (in) (API 653 B.3.2.1) = (L^2*Y*11)/(2EH)*12 = 0.24 in

R^2 = (Syy - SSE) / Syy = 0.33 not >=0.9 therefore cosine curve is invalid.

Evaluation by the Arc Length Method described in API 653 B.2.2.5.1 is required.

Austin Brockenbrough & Associates, L.L.P.

Job No. 16-074.03

Location: Fort Benning

Date: 03/02/2017

Subject: Tank M6347 - Shell Settlement Evaluation By: Daniel Caldwell

API 653 B.2.2.5.1 Evaluation by Settlement Arc Length Method

Per B.3.2.2, K = 10.5

Settlement arc length (ft), Sarc

Out of plate settlement at Point i (Si)

Allowable settlement at point i (Smax) = MIN[K*Sarc*(D/H)*(Y/E), 4]

Point Sarc (ft) Si (in) Smax

0 36.5 0.06 0.29 Si < Smax → OK

2 24.3 0.17 0.19 Si < Smax → OK

5 36.5 0.19 0.29 Si < Smax → OK

Evaluation of the settlement by the arc length method indicates the settlement is within acceptable limits.

0.00

0.10

0.20

0.30

0.40

0 2 4 6 8 10

Measured Elevation (in)

Si0 Si2 Si5

SHELL THICKNESS CALCULATIONS

The following shell thickness analysis is taken from a previous API 653 Internal Inspection Draft Report prepared by Weston Solutions, Inc. in January 2012. This analysis is included as a reference and should be used for informational purposes only.

CORROSION CALCULATIONS

Location: FT Benning, GA Tank No.: 1

SHELL

Inspection Date: 2011 Previous Inspection Date: 1991 Inspection Interval (Y): 20 years

Course

No.

tprev t tmin RCA N

Next

Visual Next UT

1 0.250 0.259 0.127 0.1320 0.0001 5.0 15.0 2 0.250 0.253 0.100 0.1530 0.0001 5.0 15.0 3 0.250 0.252 0.100 0.1520 0.0001 5.0 15.0 4 0.250 0.251 0.100 0.1510 0.0001 5.0 15.0 5 0.250 0.247 0.100 0.1470 0.0002 5.0 15.0

Minimum Value (governs): 5.0 15.0 tprev Avg. thickness at last inspection (design thickness used) t Avg. thickness at this inspection tmin Minimum thickness for full height product service RCA Remaining corrosion allowance (t - tmin)

N Corrosion Rate (tprev -t) / Y [inches per year] [If corrosion is negligible, N=0.0001 used for calcs]

Next Visual Interval in years. Lesser of (RCA / 4N) or 5 years Next UT Interval in years. Lesser of (RCA / 2N) or 15 years

ROOF

tprev t tmin N L

0.250 0.250 0.09 0.0001 25 tmin 0.090 min. per API 653 L Estimated remaining life in years

[limited to 25 years max.] Definitions otherwise same as for Shell.

SHELL/ROOF ULTRASONIC THICKNESS MEASUREMENTS

The following shell thickness analysis is taken from a previous API 653 Internal Inspection Draft Report prepared by Weston Solutions, Inc. in January 2012. This data is included as a reference and should be used for informational purposes only.

------------------------------------File Header----------------------------------

P.C. File Name :

Gauge File Name : FT B ROOF

Description : Roof Plates Memo Comment :

Creation Date : 10/22/2011 Date Last Saved : 10/27/2011

Probe : TopCoat Cal. Stnd. : 001 Temp. Comment :

Inspector : JBarksdale Company : Weston Instrument Type : DMS2 Instrument S.N. : 00H6XP

Min. Alarm Val. : 0.000 Max. Alarm Val. : 0.000 % Loss Alarm Val. : 0.00 % Growth Alarm Val. : 0.00 Abs. Loss Alarm Val. : 0.000 Abs. Growth Alarm Val. : 0.000 Units : INCH Velocity (in/us) : 0.2329

----------------------------------File Statistics--------------------------------

Number of Readings : 90 Number of Empties : 35 Number of Obstructs : 0 Number of Attachments : 0

Range : 0.026 Mean : 0.250 Median : 0.251 Standard Deviation : 0.006

Minimum Value : 0.238 Minimum Value Loc. : LOC10 : PNT1 Maximum Value : 0.264 Maximum Value Loc. : LOC17 : PNT1

Minimum Value Alarms : 0 Maximum Value Alarms : 0 Percent Loss Alarms : 0 Percent Growth Alarms : 0 Absolute Loss Alarms : 0 Absolute Growth Alarms : 0 % and Abs. Loss Alarms : 0 % and Abs. Growth Alarms: 0

----------------------------------File Comments----------------------------------

A : I :

B : J :

C : K :

D : L :

E : M :

F : N :

G : O :

H : P :

Header Page 1

PNT1 PNT2 PNT3 PNT4 PNT5

LOC1 0.247 0.247 0.249 0.252 0.252

LOC2 0.248 0.249 0.252 0.251 0.250

LOC3 0.256 0.259 0.258 0.261 0.258

LOC4 0.241 0.241 0.242 0.241 0.242

LOC5 0.254 0.252 0.255 0.252 0.251

LOC6 0.242 0.244 0.243 0.244 0.246

LOC7 0.258 0.257 0.257 0.256 0.257

LOC8 0.250 0.247 0.248 0.252 0.252

LOC9 0.253 0.253 0.254 0.254 0.252

LOC10 0.238 0.239 0.241 0.241 0.239

LOC11 0.254 0.250 0.251 0.249 0.249

LOC12 0.245 0.246 0.244 0.245 0.244

LOC13 0.252 0.252 0.250 0.251 0.250

LOC14 0.243 0.244 0.247 0.246 0.245

LOC15 0.240 0.243 0.239 0.241 0.241

LOC16 0.253 0.253 0.254 0.254 0.255

LOC17 0.264 0.264 0.259 0.259 0.258

LOC18 0.255 0.249 0.253 0.256 0.253

LOC19 Empty Empty Empty Empty Empty

LOC20 Empty Empty Empty Empty Empty

LOC21 Empty Empty Empty Empty Empty

LOC22 Empty Empty Empty Empty Empty

LOC23 Empty Empty Empty Empty Empty

LOC24 Empty Empty Empty Empty Empty

LOC25 Empty Empty Empty Empty Empty

Data Page 1

Gauge File Name : FT B SHELL

Description : 1st Course Shell Memo Comment :

Creation Date : 10/22/2011 Date Last Saved : 10/27/2011

Probe : TopCoat Cal. Stnd. : 001 Temp. Comment :

Inspector : JBarksdale Company : Weston Instrument Type : DMS2 Instrument S.N. : 00H6XP

Min. Alarm Val. : 0.000 Max. Alarm Val. : 0.000 % Loss Alarm Val. : 0.00 % Growth Alarm Val. : 0.00 Abs. Loss Alarm Val. : 0.000 Abs. Growth Alarm Val. : 0.000 Units : INCH Velocity (in/us) : 0.2329

----------------------------------File Statistics--------------------------------

Number of Readings : 36 Number of Empties : 9 Number of Obstructs : 0 Number of Attachments : 0

Range : 0.019 Mean : 0.259 Median : 0.260 Standard Deviation : 0.005

Minimum Value : 0.250 Minimum Value Loc. : LOC2 : PNT3 Maximum Value : 0.269 Maximum Value Loc. : LOC1 : PNT7

Minimum Value Alarms : 0 Maximum Value Alarms : 0 Percent Loss Alarms : 0 Percent Growth Alarms : 0 Absolute Loss Alarms : 0 Absolute Growth Alarms : 0 % and Abs. Loss Alarms : 0 % and Abs. Growth Alarms: 0

----------------------------------File Comments----------------------------------

A : I :

B : J :

C : K :

D : L :

E : M :

F : N :

G : O :

PNT1 PNT2 PNT3 PNT4 PNT5 PNT6 PNT7 PNT8 PNT9

LOC1 0.258 0.259 0.251 0.258 0.258 0.253 0.269 0.269 0.263

LOC2 0.257 0.256 0.250 0.260 0.260 0.251 0.262 0.260 0.255

LOC3 0.257 0.260 0.257 0.264 0.262 0.252 0.267 0.267 0.256

LOC4 0.262 0.261 0.254 0.256 0.255 0.256 0.258 0.266 0.253

LOC5 Empty Empty Empty Empty Empty Empty Empty Empty Empty

Data Page 1 barksdaj Text Box barksdaj Cross-Out barksdaj Text Box

Thickness Flags Cmts

1 0.250

2 0.252

3 0.243

4 0.243

5 0.249

6 0.246

7 0.253

8 0.253

9 0.254

10 0.249

11 0.249

12 0.253

13 0.251

14 0.257

15 0.252

16 0.253

17 0.257

18 0.256

19 0.249

20 0.251

21 0.249

22 0.253

23 0.260

24 0.255

25 0.248

Gauge File Name : FT B STAIRS

Description : 5 readings per course at Stairs Memo Comment :

Creation Date : 10/22/2011 Date Last Saved : 10/27/2011

Probe : TopCoat Cal. Stnd. : 001 Temp. Comment :

Inspector : JBarksdale Company : Weston Instrument Type : DMS2 Instrument S.N. : 00H6XP

Min. Alarm Val. : 0.000 Max. Alarm Val. : 0.000 % Loss Alarm Val. : 0.00 % Growth Alarm Val. : 0.00 Abs. Loss Alarm Val. : 0.000 Abs. Growth Alarm Val. : 0.000 Units : INCH Velocity (in/us) : 0.2329

----------------------------------File Statistics--------------------------------

Number of Readings : 25 Number of Empties : 0 Number of Obstructs : 0 Number of Attachments : 0

Range : 0.017 Mean : 0.251 Median : 0.252 Standard Deviation : 0.004

Minimum Value : 0.243 Minimum Value Loc. : 3 Maximum Value : 0.260 Maximum Value Loc. : 23

Minimum Value Alarms : 0 Maximum Value Alarms : 0 Percent Loss Alarms : 0 Percent Growth Alarms : 0 Absolute Loss Alarms : 0 Absolute Growth Alarms : 0 % and Abs. Loss Alarms : 0 % and Abs. Growth Alarms: 0

----------------------------------File Comments----------------------------------

A : I :

B : J :

C : K :

D : L :

E : M :

F : N :

G : O :

Thickness Flags Cmts

1 0.250

2 0.252

3 0.243

4 0.243

5 0.249

6 0.246

7 0.253

8 0.253

9 0.254

10 0.249

11 0.249

12 0.253

13 0.251

14 0.257

15 0.252

16 0.253

17 0.257

18 0.256

19 0.249

20 0.251

21 0.249

22 0.253

23 0.260

24 0.255

25 0.248

TANK DRAWINGS

The following tank drawings are taken from a previous API 653 Internal Inspection Draft Report prepared by

Weston Solutions, Inc. in January 2012. This data is included as a reference and should be used for informational purposes only.

OSHA ACCESS STRUCTURE REPORT

OSHA Stairway Data

Handrail Actual

(in)

OSHA Rq’d min (in) max (in)

Handrail Height 35 OK 30 34 Step Width 26 OK 22 NA Step Rise 8 OK NA NA

Bottom Step Rise 23 NOT OK 8 8

APPENDIX B: API 653 CHECKLISTS FOR TANK INSPECTIONS

UL SWRI

API Other

Protected

Type: Type:

Size: Date Installed:

CS End Conn: Size: 8" Material: CS End Conn: Size: 10"

Issue To:

70855

Secondary Containment, Overfill, and CRDM

Unknown

Receipt From: Truck off-load (Tank also has a 6" recirculation line)

N/A

N/A

Flanged

Truck Fillstand

Interior Coating:

Double Bottom

Fisher Tank Company

Concrete Dike

58'-0" X 260'-0" X 4'

Level Alarms:

Material: Flanged

Single Wall

Open Type Dike

Overfill Protection:

N/A

Daniel Caldwell

Vertical

Rectangular

Double Wall

Fire Resistant

Closed Top Dike

Change of Service:

Last Repair:

Tank Coatings:

Exterior Coating:

Epoxy/Epoxy/Polyurethane

Epoxy (assumed)

Tank Facility No.:

Local Tank ID No.:

January 4, 2017

M6347

Tank Manufacturer:

Tank Construction Date:

Tank 1

Tank Outside Dimensions:

Nominal Capacity:

Useable Capacity:

Tank Construction and Configuration

Insulated

Coated

Plastic / Fiberglass

Other:

Jet Fuel (F-24)

5,000 barrels

4,360 barrels

Design Std

Horizontal

API 653 EXTERNAL INSPECTION CHECKLIST

Fort BenningProject Site:Project Name:

Project Location:

Brockenbrough Job No.:

SPCC Mandated AST Inspections - Group 5

Columbus, Georgia

General Inspection Information

16-074.03

Submitted to:

Contract No.:

USACE - Omaha

W9128F-12-D-0006

Release Prevention Barrier

Overfill Protection / Level Alarms:

Independent High-high, High, Low and Low-low Level

Alarm & ATG Alarms High Level Control Valve (HLCV)

Receipt Piping Configuration Issue Piping Configuration

Tank Piping

Secondary Containment

January, 2012

Tank Specifications

Previous Tank Inspection Date:

Continuous Release Detection Monitoring

Type:

Date Installed:

Current Product:

31'-0" diameter by 42'-3" tall

NA

Unknown

Inspection Date:

Tank Inspector Name:

Inspector Certification Number:

API 653 EXTERNAL INSPECTION CHECKLIST

Fort BenningProject Site:Project Name: SPCC Mandated AST Inspections - Group 5

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Small amount of leaves and vegetation present.

Measure foundation levelness and bottom elevations (See Annex B) See tank settlement calculations.

ITEM

C.1.1 Foundation

C.1.1.1 Concrete Slab d) a)

Check for:

Presence of crushed rock under the steel bottom which usually results in severe underside corrosion.

C.1.1.4 Rock c)

Check for:

C.1.1.7 Cathodic Protection

TASK

Leaching of oil which has left rock filler exposed indicating hydrocarbon leakage

Tank settlement into asphalt base

Review cathodic protection potential readings

Check for:

STATUS COMMENTS

a) b)

C.1.1.2 Asphalt e) a)

Tank Settlement

Cavities under foundation; vegetation against bottom of tank

Broken concrete, spalling, and cracks, especially under backup bars used in welding butt-welded annular rings under the shell Indications of bottom leakage at drain openings in ring, back of water-draw basins, and top surface of ring

Run-off rainwater from shell draining away from the tank Settlement around perimeter of tank Check for:

5V, 2.5 A. The tank may have a concrete slab between cathodic protection and tank bottom.

Piping routed over swale in dike. Swale is 6 feet from the tank.

b)

Settlements into the base

C.1.1.5 Site Drainage

Proper operation of dike drainsb) C.1.1.6 Housekeeping

Buildup of trash, vegetation, and other inflammables

Check for :C.1.1.3 Oiled Dirt or Sand

Site drainage away from the tank, associated piping, and manifolds

Check for:

C.1.2.1 External Visual Inspection

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A No access

C.1.2.3 Riveted Shell Inspection

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

The seal is improperly installed and has failed.

Check for:

Grooving, corrosion, pitting, and coating failures c) d) b)

Corrosion loss and wear on the rivets

Reinforcing pads welded to shell at supports

Leaks and identify the location by sketch or photo

C.1.2.4 Wind Girder (Floating Roof Tanks) a) c)

Full fillet lap-welded vertical seams to increase joint efficiency b)

Check for:

Rivet and seam leaks on external surface

Check for:

Bottom-to-Foundation Seal

Isolated coating failure on the tank bottom extension and shell-to-bottom weld. Algae on exterior of shell.

Pitting on support welds to shell, especially on shell plates

a) b) c)

e) Drawings of riveted seams if available. Otherwise, dimension and sketch (or photograph) the rivet pattern: no. of rows, rivet size, pitch length, butt-riveted or lap-riveted joints a)

Corrosion and thinning on plate and weld after cleaning the bottom angle area

Paint failures, pitting, and corrosion

Broken welds and corrosion damage (paint failure, pitting, corrosion, product buildup), especially where it occurs at tack-welded junction

C.1.2. Shells

Check for:

C.1.2.2 Internal (Floating Roof Tank)

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A Condensation inside reading window.

AFFF Nozzle and piping flanges are corrodedFire fighting system componentsb)

C.1.3.3 Autogauge System Check for:

b)

COMMENTS

Cracks or signs of leakage on weld joint at nozzles, manholes, and reinforcing plates Shell plate dimpling around nozzles, caused by excessive pipe deflection c)

Check for:

ITEM TASK

C.1.3.2 Tank Piping Manifolds

a) Leaks at piping manifolds, flanges, and valves

C.1.3 Shell Appurtenances

Sealing of insulation around manholes and nozzles

e) Adequate manholes flange and cover thickness on mixer manholes c) d) e) g)

Damage on welds on shell-mounted davit clips above valves 6 inches and larger

Anchored piping which would be hazardous to the tank shell or bottom connections during earth movement

Adequate thermal pressure relief of piping to the tank Proper operation of regulators for tanks with purge gas systems Leaks at sample connections and proper valve operation Damage and test the accuracy of temperature indicators h) d) f)

C.1.3.1 Manholes and Nozzles a)

Check for:

Flange leaks and leaks around bolting

The TRVs are set too high @ 175 psi and therefore do not relieve excess pressure. TRVs, installed in 04/12, are also not maintained regularly.

Pump is at 300 GPM @ 200 FT of head.

STATUS

a) Leaks on autogauge tape guide and lower sheave housing (floating swings)

b) Damage on autogauge head

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A No access

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

c) Pass Fail N/A

Pass Fail N/A

Pass Fail N/A Pass Fail N/A

Pass Fail N/A

C.1.3.3 Autogauge System c) d)

C.1.3.4 Shell-mounted Sample Station Product Saver Tank a)

Freedom of movement of marker and float

The tape is too tight & appears to be attached directly to the pan.

31'-1 5/16" Tape Level Gauge; 20'-1 5/16" ATG i)

Bracing and supports for sample lines and equipment

Actual product level compared to the reading on the autogauge. Make note. (max. variation is 2 in.)

No more than 2 feet of tape are exposed at the end of the tape guide when the roof is in lowest position (floating roof tanks)

ITEM TASK

a) b)

Proper mounting flange and support Leakage

h) Condition of board and legibility of board-type autogauges b)

Check for:

Function of valves and plugging in sample lines, including drain or return-to-tank line Leaks in circulation pump and operating problems

Inspect condensate drain for presence of oil indicating leakage

C.1.3.5 Heater (Shell Manhole Mounted) C.1.3.6 Mixer Check for:

c) Condition of power lines and connections to mixer

No access

The tape tends to hang up.

STATUS COMMENTS

e) f) g)

Proper movement of tape by bumping the checker on autogauge headSize and construction material of the autogauge tape guide and make note (floating roof tanks) Proper movement of tape. Ask the operator if the tape tends to hang up during tank roof movement (floating roof tanks).

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

b) Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

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

C.1.3.11 Swing Lines: Product Sample Comparison

Check for water or gravity differences that would indicate a leaking swing joint

C.1.3.8 Swing Lines: External Guide System

Check for leaks at threaded and flanged joints

C.1.3.9 Swing Lines: Identify Ballast Varying Need

ITEM TASK

Check for significant difference in stock specific gravity Check for:C.1.3.10 Swing…