Attachment J.2 - Camp Clark-Fac 10213 (Tank 4 AO5C).pdf

TANK 10213 (TANK #A05C) STI SP001

FORMAL IN-SERVICE INSPECTION REPORT

Camp Clark Training Center - Nevada, Missouri

A/E Contract No. W9128F-12-D-0006; Delivery Order No. 0007

Submitted to:

U.S. Army Corps of Engineers Omaha District

1616 Capital Avenue; Omaha, NE 68102

27 April 2015

Submitted by:

1011 Boulder Springs Drive, Suite 200; Richmond, Virginia 23225 Phone: 804.592.3900 Fax: 804.592.3901 www.brockenbrough.com

Job No. 15-002.02

SPCC Mandated Shop-Built AST Inspections Camp Clark, Tank 10213

Executive Summary page i

EXECUTIVE SUMMARY

Austin Brockenbrough & Associates, LLP (Brockenbrough) was retained by Omaha District USACE under

Contract No. W9128F-12-D-0006 Delivery Order 0007 to perform SPCC Mandated Shop-Built AST

Inspections. As required by this task, Brockenbrough executed a tank inspection site visit to Camp Clark located near Nevada, Missouri. A formal external inspection per the guidelines of STI SP001 “Standard for the Inspection of Aboveground Storage Tanks” was conducted for Facility No. 10213 (locally identified as Tank A05C) on March 23rd, 2015.

Tank 10213 is an 8'-0" diameter by 16'-0" long single wall, horizontal Steel tank with a nominal storage capacity of 6,000 Gallons of Diesel (DS1/2) fuel. The tank was fabricated by Hall Tank Co. (per documentation) in the Mid 1990s (per fuels personnel). Secondary containment is provided by concrete containment system, shared with two other tanks. Because this tank has spill control and allows visual continuous release detection, it is classified as a Category ‘1’ Tank. Details of tank construction and appurtenances are included in Section ‘B’.

The tank was found to be fully serviceable, but the emergency vent, which has been sealed closed and rendered inoperable by the coating system, requires immediate repair. In addition, a few items were observed that were not in compliance with applicable Federal, state, and local codes and regulations.

The noted deficiencies are included in more detail in Section ‘C’ and should be addressed in a timely manner.

It is recommended that the tank owner’s inspector perform periodic inspections of this tank using the

STI monthly and annual checklists which are included in Appendix ‘2’ of this report. As this tank is classified as Category ‘1’, STI recommends that the next formal external inspection of this tank be performed by a certified STI SP001 inspector before April 2035.

Certification Signature:

Bryan Strayer, PE Mechanical Engineer; STI Inspector No. AST-990220

Table of Contents page ii

TABLE OF CONTENTS

A. General Project Information

1. STI SP001 In-Service Inspections

2. Site Information

3. Previous Inspections

B. Tank Construction and Appurtenances

1. Tank Construction

2. Tank Supports and Foundation

3. Secondary Containment

4. Tank Coating System

5. Tank Appurtenances

6. Tank Piping System

C. Findings and Recommendations

1. Emergency Vent

2. NFPA Hazardous Materials Identification System (HMIS)

3. Fire Protection Systems

4. Atmospheric Vent

5. Mechanical Tape Gauge

6. Manual Gauging Hatch

7. Receipt Shut-Off Device

8. Piping Components

D. Inspection Photographs

E. Tank Configuration Sketch

Appendix ‘1’ – STI SP001 Formal External Inspection Checklist

Appendix ‘2’ – STI Monthly and Annual Checklists

General Project Information page 1

A. General Project Information

1. STI SP001 In-Service Inspections

This project performs in-service inspection of various tanks at facilities throughout the United

States. The basis of this inspection is a formal external inspection recommended in STI SP001

“Standard for the Inspection of Aboveground Storage Tanks”. Additional consideration is given to

Federal, State, and Local regulations as well as applicable Military Criteria and general industry standards. Unless otherwise noted, all inspections will be conducted while the tanks and associated piping systems remain in service.

For Tank 10213, a formal external inspection was conducted. The results of this inspection are included within.

2. Site Information

On March 22nd thru 23rd, Brockenbrough performed a site visit to Camp Clark, located near Nevada, Missouri to perform inspections of three aboveground storage tanks. Camp Clark is located near the town of Nevada, and is currently used as a training center for the Missouri Army Nation Guard

It should be noted that at the time of inspection, an SRM Project was under construction to replace the vehicle dispensers associated with this tank. This repair will include new underground piping to the dispensers, and will also demolish existing 10,000 gallon Tank 10200, which has been out of service for several years.

3. Previous Inspections

No previous inspections of Tank 10213 have been performed

Tank Construction and Appurtenances page 2

B. Tank Construction and Appurtenances

1. Tank Construction

The tank is assumed to be constructed to UL 142 "Aboveground Flammable Liquid Tanks".

Although the UL Nameplate is no longer attached, the manufacturer was contacted and it was confirmed that the UL 142 standard was most certainly used. The tank shell is constructed of (3) courses of butt-welded 1/4" thick steel plates. The tank heads are flat, lap-welded 1/2" thick steel.

The tank measures 8'-0" diameter by 16'-0" long. The shell and heads appeared to be in generally good condition.

2. Tank Supports and Foundation

The Tank is resting on concrete saddles, each with an isolation pad. Tie-down straps were in place to secure the tank. Tank saddles rest on the concrete containment slab.

3. Secondary Containment

The tank is within a concrete containment structure that is 19’ wide and 48’ long, with 18” high walls. This containment area can contain in excess of 110% of the tanks volume, and is shared with tanks A05B and A05A. The containment area was found to be in generally good condition, with no signs of foreign material or debris. .

4. Tank Coating System

The tank coating system was in good condition. The tank was reportedly re-coated around 5 years ago.

5. Tank Appurtenances

a. Venting

This tank features a 2" Morrison Bros Fig 548 pressure/vacuum vent assembly. This vent is in compliance with the recommendations of STI SP001. The tank has a 10" Morrison Bros Fig 244 emergency vent. This vent is rated for 405,000 cfh. This emergency venting rate meets the requirements recommended by STI SP001. However, at the time of inspection, the vents were sealed closed by the coating and rendered inoperable.

b. Gauging

The tank features a Veeder Root TLS-350 ATG system that includes a water probe. In addition, the tank has been provided with a Tokheim mechanical tape gauge. Unfortunately, lack of movement of the indicating tape when the proving knob was engaged indicates that the tape gauge is not working properly.

Tank Construction and Appurtenances page 3

c. Stairs and Platforms

A ships ladder leads to a catwalk that is used to access the top of all three tanks. A small platform projects off the side of the catwalk to provide access to the appurtenances of this tank. However, the manual gauging hatch and emergency vent are not accessible from this platform.

d. Grounding and Bonding

Grounding wire is attached to a bracket mounted on the shell near the tank head.

e. Other Appurtenances

The tank has a 16” manhole for internal access. The 4” ATG nozzle is mounted on the manhole cover. The tank also features a 4” manual gauging hatch, which unfortunately is not accessible from the access platform.

6. Tank Piping System

Fuel is received through bi-directional 2" carbon steel piping from the associated truck off-loading station. Fuel is issued through the 2" carbon steel piping, which transitions to 2” underground piping that supplies the nearby vehicle dispensers. A simple truck fill stand, featuring a small pump, meter, and a high-flow dispenser is located near the off-loading station.

Tank Construction and Appurtenances page 4

Table B-1: General Tank Construction Data

Item Description

Owner Missouri Army National Guard

Tank Identification Facility 10213 (Tank A05C)

Location Camp Clark , Nevada, Missouri

Manufacturer Hall Tank Co. (per documentation)

Design Standard The tank is assumed to be constructed to UL 142 "Aboveground Flammable Liquid Tanks"

Year Built Mid 1990s (per fuels personnel)

Current Product Stored Diesel (DS1/2) - specific gravity: 0.83 to 0.88, vapor pressure:

0.009 psia at 70F, flash point: 125F, Class II combustible liquid

Dimensions 8'-0" diameter by 16'-0" long

Storage Capacity 6,000 Gallons Nominal Capacity

Cleaning, Inspection, or Repair

No previous inspections have been performed

Foundation The Tank is resting on concrete saddles each with an isolation pad

Shell Construction The tank shell is constructed of (3) courses of butt-welded 1/4" thick steel plates. The tank heads are flat, lap-welded 1/2" thick steel

Stairs/Ladders The tank includes an end ships ladder that leads to a catwalk used to access the top of all three tanks. Each tank features a small platform used to access appurtenances

Manholes (1) 24” manhole on top of tank shell

Interior Coating System Unknown

Exterior Coating System The tank coating system was in good condition. The tank was reportedly coated around 5 years ago

Level Gauging Veeder Root TLS-350 ATG system including water probe;

Tokheim Mechanical Tape Gauge

Overfill Protection/Level Alarms

High level audible and visual alarm provided by Veeder Root ATG system

Piping 2" carbon steel from truck off-loading station; 2" carbon steel to vehicle dispensers and a high-flow refueler dispenser

Venting/Vapor Emission Controls

2" Morrison Bros Fig 548 Pressure/Vacuum vent assembly ; 10" Morrison Bros Fig 244, 405,000 CFM

Strapping Tables Strapping tables provided by tank manufacturer in 2005

Secondary Containment The tank is within a concrete containment structure that can contain in excess of 110% of the tanks volume. This containment is shared with Tanks A05B and A05A

Fire Protection System None; nearest fire hydrant is approximately 500 feet away

Findings and Recommendations page 5

C. Findings and Recommendations

Tank 10213 was found to be in generally good condition. The tank is fully serviceable, but the emergency vent, which are sealed closed by the coating system, requires immediate repair. The shell plates were found to be structurally sound, with little or no metal loss apparent. Overall the appurtenances met the minimum requirements of the applicable codes and standards, and were generally in an acceptable state of repair. There were, however, several items observed that were not in full compliance with the Federal State, and Local regulations. These noted deficiencies are listed below, with repair recommendations. These deficient items should be addressed in a timely manner.

1. Emergency Vent

The emergency vent is an 8” model rated for 405,000 cfh, which is in compliance with STI standards for emergency venting. However, the lid of the emergency vent has been seal closed by the recently applied coating system, which renders the emergency vent inoperable. The coating should be cut around the emergency vent lid to allow the vent to open and properly protect the tank.

2. NFPA Hazardous Materials Identification System (HMIS)

The tank stores diesel fuel, which requires a Hazardous Materials Identification System Symbol.

The standard NFPA 704 Diamond, which warns of product health, flammability, instability, and any other special hazards, should be provided in a conspicuous location on the tank shell.

3. Fire Protection Systems

This tank does not require any fire protection systems. However, Military Criteria requires two fire hydrants to be located within 300 feet of the tank to allow firefighting personnel a source of water if needed. The nearest hydrant that was found was approximately 500 feet from the tank. Two new fire hydrants, dedicated to the fuel system, should be located in the vicinity. The actual location of the hydrants should be coordinated with the Base Fire Department.

4. Atmospheric Vent

The atmospheric vent was not able to be to be accessed to verify proper opening and closure. The vent should be accessed and opened, and the internal pressure and vacuum closing and opening should be verified. It should be noted that this vent model is no longer supported by the manufacturer, as it has been superseded by an updated model. Additionally, tanks storing diesel product do not typically require pressure/vacuum vents – open atmospheric vents are adequate. If this vent is found to be working properly, there is no need to replace it. However, if it is found to not open properly, it should be replaced with a simple open atmospheric vent. This new vent should be piped in a configuration that allows easy access from the catwalk to facilitate maintenance and inspection.

Findings and Recommendations page 6

5. Mechanical Tape Gauge

The mechanical tape gauge appears very old and did not respond when the proving handle was engaged. It did not appear that the tape gauge was working properly. The existing tape gauge should be replaced / upgraded to assure the facility has a means to verify the ATG readings.

6. Manual Gauging Hatch

A 4” manual gauging hatch is located at the end of the tank, but it is not accessible from the access platform. This prevents personnel from manually gauging the tank without elaborate fall protection or other personnel lifting equipment. The existing platform should be modified to facilitate personnel access to the manual gauging hatch. Note that extending the platform will also allow access to the emergency vent as well.

7. Receipt Shut-Off Device

Although the high level alarm meets the requirements of STI SP001, Military Criteria require a means of automatic shut-off of fuel delivery should the product in the tank reach a high level point.

A level control valve or other automatic shut-off device should be installed to provide automatic shut-off of fuel delivery.

8. Piping Components

At several locations, including the tank inlet/outlet nozzles and the truck off-loading station, valves and other components were noted that are made of bronze. Per NFPA 30 Components with low melting points are not permitted in the secondary containment area of fuel systems. Additionally, Gate valves are used at several locations for piping isolation. A gate valve is not an appropriate valve type for military fuel system isolation. All gate valves should be replaced by steel ball valves, and all bronze components should be replaces with steel components.

9. Containment Drain Valve Operators

NFPA requires that the containment area drain valves be accessible during a fire event. The location of the drain valve operators within the secondary containment area appears to violate this requirement. The operators for the drain valves should be moved outside of the containment area walls to allow access to the valves in the case of a fire.

Inspection Photographs page 7

D. Inspection Photographs

Overview of Tank 10213, Locally Identified as Tank #A05C

Overview of the Fueling Facility, Showing the Vehicle Containment Area and All Tanks

Inspection Photographs page 8

Tank Inlet/Outlet Nozzle and Manual Tape Gauge Readout (beneath the gray protective sleeve). Note the temporary dispenser to allow fueling during the current SRM construction project.

Concrete Tank Saddle, Isolation Pad, and Tie-Down Strap

Inspection Photographs page 9

Tank Access Platform, with a Square Cut-Out for the 16” Manhole and Associated 4” ATG Nozzle

Manual Gauging Hatch, Emergency Vent, and Access Platform

Inspection Photographs page 10

Catwalk, Access Platform, and Pressure/Vacuum Vent

Associated Tank Truck Off-Loading Point and Refueler Fill Nozzle (common to all three tanks)

Tank Configuration Sketch page 11

E. Tank Configuration Sketch

Internal Inspection Report page 12

Appendix ‘1’ – STI SP001 Formal External Inspection Checklist

Project Name : :

Project Site : :

Project Location : :

Tank Facility No. : :

Local Tank ID No. : :

Inspection Date : :

Design : UL

# Horizontal Vertical

Manufacturer : :

Dimensions : : Useable =

Construction Date : : :

Construction : Bare Steel Single-Wall Insulated

Coated Steel Double-Wall Galvanic or

Concrete Double-Bottom

Plastic/Fiberglass Lined :

Secondary

Containment : Earthen Dike Steel Dike

CRDM : N/A Yes

Release Prevention

Barrier : N/A Yes

Interior Coating : :

Piping : Issue : Size -

Material -

Connection Type -

Issue to -

Submitted to

Brockenbrough Job No.Nevada, Missouri 15-002.02

AST-990220

Camp Clark

Hall Tank Co. (per documentation)

8'-0" diameter by 16'-0" long Nominal =

Bryan Strayer

N/A

Concrete Synthetic Liner Other

Other

Impressed Current

Tank Specifications

Product

Capacity

Mid-1990s Type:

Date Installed

API

Rectangular

Other

Unknown

SWRI

Mid 1990s (per fuels personnel)

Diesel (DS1/2)

Date Installed: Visual carbon steel butt welded vehicle dispensers; high-flow refueler dispenser

Date Installed: Type:

Receipt from -

Receipt : Size -

Material -

Connection Type -

Unknown Exterior Coating Appears to be standard DOD epoxy system

Overfill Protection / Level Alarms: High level audible and visual alarm provided by Veeder Root ATG system

STI SP001 FORMAL EXTERNAL INSPECTION (FEI) CHECKLIST

2" carbon steel butt welded truck off-loading station

2"

Contract No.

SPCC Mandated Shop-Built AST Inspections

March 23rd, 2015

10213

Tank A05C

6,000 Gallons

Cathodically Protected (Check one below)

Last Repair/Reconstruction Last Change of Service

Omaha District USACE

W9128F-12-D-0006

Inspector Certification Number

Prior Inspection Date

Inspector Name

General Inspection Information

Pad plates between the supports and shell are in good condition

Cracking or spalling

N/A

Good overall condition?

Wash-out The tank is within a concrete walled containment structure that can contain in excess of 110% of the tanks volume. This containment is shared with tanks A05B and A05A

The containment area was found to be in generally good condition

A

Corrosion N/A

Corrosion or coating failure

N/A

A

A

N/A

A

Coating failure

Liquid present in the area?

Liner degradation

Leakage

Water drains away from tank

Ground slopes away from tank

Soil resting against/covering side of tank

N/A

A

Check for :

Holes or cracks in wall or floor

A

A

A

7.1.8.1 Secondary

Containment

A

A

N/A

N/A

Secured properly on foundation or grade

7.1.7 Tank Supports

Welds are in good condition

Foreign materials present in the area

Degradation

A

A

N/A

N/A

A

Exposed rebar

Wash-out or voids

Settlement

Cracking

Check for :

ITEM

7.1.3 Past Records

7.1.4 AST Nameplate Data

7.1.5 AST Fabrication

7.1.6 Tank Foundation

Record AST data and check for accuracy against actual conditions

Inspect against applicable industry standards

Review prior inspections, repairs and alterations data No previous inspections have been performed

Tank did not have a manufacturer's or UL nameplate

Check for :

The tank is assumed to be constructed to UL 142 "Aboveground Flammable Liquid Tanks"

N/A

N/A

A

7.1 General

TASK STATUS COMMENTS

STI SP001 FORMAL EXTERNAL INSPECTION (FEI) CHECKLIST

NOTE: "A" IN THE STATUS COLUMN MEANS ACCEPTABLE; "X" IN THE STATUS COLUMN MEANS AN ITEM IS UNACCEPTABLE AND THERE IS A COMMENT.

The Tank is resting on concrete saddles, each with an isolation pad

Tie-down straps were in place to secure the tank

Tank saddles rest on the concrete containment slab

Tokheim Mechanical Tape Guage.

Veeder Root TLS-350 ATG system

The alarm is reportedly functioning properly. The tape gauge may not be working

STI SP001 FORMAL EXTERNAL INSPECTION (FEI) CHECKLIST

A

Check for :

Stress or leakage

Must be operable and in good condition?

A

A

A

Liquid present in the area

A

A

X

N/A

A

Containment area features a 3" locked drain valve which appeared to be in a good condition

7.1.9.1 Piping and Piping

Connections

2" Morrison Bros Fig 548 Pressure/Vacuum vent assembly

10" Morrison Bros Fig 244, with a capacity of 405,000 CFM

The tank includes a ships ladder that leads to a catwalk used to access the top of all three tanks. Each tank features a small platform used to access appurtenances

Corrosion A

7.1.10 Tank Grounding &

Bonding

7.1.11 Stairways, Handrails, and Platforms

A

Verify that the primary tank level gauge and secondary tank interstitial gauges move freely and the floats, guides, and attachments are in working order.

Liquid level gauge length sized correctly for tank diameter?

Alarms are operable?

Strap secured and in good condition?

Check for :

Degradation

Operable and in good condition?

7.1.9.2 Vents (Normal/

Emergency) and

Pressure/Vacuum Devices

X

7.1.12 Tank Shell & Head

A

A

A

Corrosion

Rusted bolted connections

Verify that components are moving freely and vent passageways are not obstructed for :

CRDM

Broken welds

7.1.9.3 Tank Gauges

A

This vent is in compliance with the recommendations of STI SP001

Containment area was empty of liquid with no signs of foreign material or debris.

Aboveground Piping was in good condition. Underground piping was in poor condition, but is out of service and being replaced by the ongoing SRM Project.

Emergency vent covers

A Grounding Grid attached to lug near tank head.

Adequate size and capacity?

This vent is rated for 405,000 cfh. This emergency vent rate meets the requirements recommended by STI SP001. The vent lids were painted closed and inoperable

Good overall condition

Good overall condition

Pressure/ vacuum vent poppets

Other moving vent components

A

ITEM

7.1.8.3 Drain Valves A

TASK STATUS

7.1.8.2 Spill Control &

N/A

Ladders, catwalk, and platforms were all in good condition.

Platforms do not provide access to the manual guaging port

The tank coating system was in good condition. The tank was reportedly coated around 5 years ago

Bent members A

Coating Failure?

7.2.4 Average minimum thickness measurement

Location 1 (inch)

0.269

Measure the tank thickness of several areas of the tank that have no visible corrosion or pitting

Check shell and ancillary equipment for:

7.4.3 For Vertical ASTs :

Roof

Buckling

Distortion

Pinholes

Note: All UT Measurements were taken through the tank coating.

The tank shell is constructed of (3) courses of butt-welded 1/4" thick steel plates. The tank heads are flat, lap-welded 1/2" thick steel.

The shell and heads appeared to be in generally good condition

Exterior Corrosion

Distortion

Cracking

Check shell plates and welds for :

ITEM TASK

Stress

Mechanical damage

7.3 Horizontal AST / 7.4 Vertical AST or Rectangular AST

A

A

A

A

A

A

A

A

A

STATUS COMMENTS

7.3.1 / 7.4.1 Tank Shell, Heads, or Roof Dents A

Paint Failure N/A

Holes or corrosion N/A

Low areas and standing water N/A

Check the roof for :

Bulging

STI SP001 FORMAL EXTERNAL INSPECTION (FEI) CHECKLIST

7.2 Determine the original shell thickness of the AST

Suggested methods are :

7.2.2 Consult the tank manufacturer

7.2.1 Review the original tank documentation, such as drawings and packing lists

7.2.3 Exam the tank labels for evidence of a widely accepted tank standard. Consult the referenced standard to determine the minimum design shell thickness

0.263

Location 2 (inch) Location 3 (inch) Location 4 (inch)

0.266

Average thickness (inch)

Head 1

Head 2

Top

Bottom

Check for :

0.285 0.286 0.2855

0.269 0.263 0.266

Corrosion

Check attachments welds for :

7.3 Horizontal AST

7.3.1.1 Ultrasonic Thickness Testing (UTT) Readings

Readings must be concentrated in areas where corrosion is likely to occur. If significant internal corrosion is detected , further investigate with the use of ultrasonic testing scans (UTS).

N/A

Location 3 (inch)

#DIV/0!

Changes made to the shell attachments after AST was fabricated?

0.28

Average thickness (inch)Location 1 (inch) Location 2 (inch)

STATUS

STI SP001 FORMAL EXTERNAL INSPECTION (FEI) CHECKLIST

TASK

Stress

0.282

ITEM

0.284

7.3.2 Modifications to the

AST

If yes, please attach a sketch/drawing of the

AST with all appurtenances, attachments, and nozzle locations .

No Tank post-installation modifications were noted

7) Per NFPA, the containment area drain valves are required to be accessible during a fire. Locating the drain valve operators within the secondary containment would appear to violate the NFPA requirement.

6) Bronze components are present at the tank nozzle and the truck off-loading point. Low melting point materials are prohibited from being used on a fuel system. Additionally, gate valves are being used for isolation within the piping system. Gate valves are not appropriate as isolation valves for this type of fuel system.

1) Tanks do not have any fire protection system (none is required). The nearest fire hydrant is approximately 500 feet from the tank. 300 feet is the requried maximum distance.

3) There was no Hazardous Materials Identification System (HMIS) Diamond symbol, per NFPA 704 present on the tank

2) No Manufacturer's or UL nameplates were present. Any tank construction and design data was either reported from facility personnel or found on existing documentation.

5) All ultrasonic thickness measurements were taken through the coating system to avoid damaging the relatively new exterior coating. For this reason, the measurement data has been adjusted to take into account the approximate coating thickness

STI SP001 FORMAL EXTERNAL INSPECTION (FEI) CHECKLIST

Additional Comments:

4) It is uncertain whether the mechanical tape gauges are working properly. The gauge did not respond when engaging the proving handle (standard "Bump" Test)

STI Monthly and Annual Checklists page 13

Appendix ‘2’ – STI Monthly and Annual Checklists

AST INSPECTION STANDARD 29 SEPTEMBER 2011

STI SP001 Monthly Inspection Checklist

General Inspection Information:

Inspection Date: Retain Until Date: (36 months from inspection date)

Prior Inspection Date: Inspector Name:

Tanks Inspected (ID #’s):

Inspection Guidance:

For equipment not included in this Standard, follow the manufacturer recommended inspection/testing schedules and procedures.

The periodic AST Inspection is intended for monitoring the external AST condition and its containment structure. This visual inspection does not require a Certified

Inspector. It shall be performed by an owner’s inspector who is familiar with the site and can identify changes and developing problems.

Upon discovery of water in the primary tank, secondary containment area, interstice, or spill container, remove promptly or take other corrective action. Before discharge to the environment, inspect the liquid for regulated products or other contaminants and disposed of it properly.

(*) designates an item in a non-conformance status. This indicates that action is required to address a problem.

Non-conforming items important to tank or containment integrity require evaluation by an engineer experienced in AST design, a Certified Inspector, or a tank manufacturer who will determine the corrective action. Note the non-conformance and corresponding corrective action in the comment section.

Retain the completed checklists for 36 months.

In the event of severe weather (snow, ice, wind storms) or maintenance (such as painting) that could affect the operation of critical components

(normal and emergency vents, valves), an inspection of these components is required as soon as the equipment is safely accessible after the event.

Item Task Status Comments

1.0 Tank Containment

1.1 Containment

structure

Check for water, debris, cracks or fire hazard

�Yes* �No �N/A

1.2 Primary tank Check for water �Yes* �No

1.3 Containment

drain valves Operable and in a closed position

�Yes �No* �N/A

1.4 Pathways and

entry

Clear and gates/doors operable

�Yes �No* �N/A

2.0 Leak Detection

2.1 Tank Visible signs of

leakage �Yes* �No

2.2 Secondary

Containment

Visible signs of leakage from tank into secondary containment

�Yes* �No

2.3 Surrounding soil Visible signs of

leakage

�Yes* �No �N/A

2.4 Interstice Visible signs of

leakage

�Yes* �No �N/A

AST INSPECTION STANDARD 30 SEPTEMBER 2011

3.0 Tank Equipment

3.1 Valves a. Check for leaks. �Yes* �No �N/A

b. Tank drain valves must be kept locked.

�Yes* �No �N/A

3.2 Spill

containment boxes on fill pipe

a. Inspect for debris, residue, and water in the box and remove.

�Yes* �No �N/A

b. Drain valves must be operable and closed.

�Yes* �No �N/A

3.3 Liquid level

equipment

a. Both visual and mechanical devices must be inspected for physical damage.

�Yes �No* �N/A

b. Check that the device is easily readable

�Yes �No* �N/A

3.4 Overfill

equipment

a. If equipped with a "test" button, activate the audible horn or light to confirm operation.

This could be battery powered. Replace the battery if needed

�Yes �No* �N/A

b. If overfill valve is equipped with a mechanical test mechanism, actuate the mechanism to confirm operation.

�Yes �No* �N/A

3.5 Piping

connections

Check for leaks, corrosion and damage

�Yes* �No

4.0 Tank Attachments and Appurtenances

4.1 Ladder and

platform structure

Secure with no sign of severe corrosion or damage?

�Yes �No* �N/A

5.0 Other Conditions

5.1 Are there other conditions that should

be addressed for continued safe operation or that may affect the site spill prevention plan?

�Yes* �No

AST INSPECTION STANDARD 31 SEPTEMBER 2011

AST INSPECTION STANDARD 32 SEPTEMBER 2011

STI SP001 Annual Inspection Checklist

General Inspection Information:

Inspection Date: Retain Until Date: (36 months from inspection date)

Prior Inspection Date: Inspector Name:

Tanks Inspected (ID #’s):

Inspection Guidance:

For equipment not included in this Standard, follow the manufacturer recommended inspection/testing schedules and procedures.

The periodic AST Inspection is intended for monitoring the external AST condition and its containment structure. This visual inspection does not require a Certified

Inspector. It shall be performed by an owner’s inspector who is familiar with the site and can identify changes and developing problems.

Remove promptly upon discovery standing water or liquid in the primary tank, secondary containment area, interstice, or spill container. Before discharge to the environment, inspect the liquid for regulated products or other contaminants and disposed of it properly.

In order to comply with EPA SPCC (Spill Prevention, Control and Countermeasure) rules, a facility must regularly test liquid level sensing devices to ensure proper operation (40 CFR 112.8(c)(8)(v)).

(*) designates an item in a non-conformance status. This indicates that action is required to address a problem.

Non-conforming items important to tank or containment integrity require evaluation by an engineer experienced in AST design, a Certified Inspector, or a tank manufacturer who will determine the corrective action. Note the non-conformance and corresponding corrective action in the comment section.

Retain the completed checklists for 36 months.

Complete this checklist on an annual basis supplemental to the owner monthly-performed inspection checklists.

Note: If a change has occurred to the tank system or containment that may affect the SPCC plan, the condition should be evaluated against the current plan requirement by a Professional Engineer knowledgeable in SPCC development and implementation.

1.0 Tank Containment

1.1 Containment

structure

Check for:

• Holes or cracks in containment wall or floor

• Washout

• Liner degradation

• Corrosion

• Leakage

• Paint failure

• Tank settling

�Yes* �No �N/A

2.0 Tank Foundation and Supports

2.1 Foundation Settlement or

foundation washout?

�Yes* �No

2.2 Concrete pad

or ring wall

Cracking or spalling? �Yes* �No �N/A

AST INSPECTION STANDARD 33 SEPTEMBER 2011

2.3 Supports Check for corrosion, paint failure, etc.

�Yes* �No �N/A

2.4 Water

drainage

Water drains away from tank?

�Yes �No* �N/A

2.5 Tank

grounding

Strap secured and in good condition?

�Yes �No* �N/A

3.0 Cathodic Protection

3.1 Gavlvanic

cathodic protection system

Confirm system is functional, includes the wire connections for galvanic systems

�Yes �No* �N/A

3.2 Impressed

current system

a. Inspect the operational components (power switch, meters, and alarms).

�Yes �No* �N/A

b. Record hour meter, ammeter and voltmeter readings.

�Yes �No* �N/A

4.0 Tank Shell, Heads, Roof

4.1 Coating Check for coating

failure �Yes* �No

4.2 Steel

condition

Check for:

• Dents

• Buckling

• Bulging

• Corrosion

• Cracking

�Yes* �No

4.3 Roof slope Check for low points

and standing water

�Yes* �No �N/A

5.0 Tank Equipment

5.1 Vents Verify that

components are moving freely and vent passageways are not obstructed for:

• Emergency vent covers

• Pressure/vacuum vent poppets

• Other moving vent components

�Yes* �No

AST INSPECTION STANDARD 34 SEPTEMBER 2011

5.2 Valves Check the condition of

all valves for leaks, corrosion and damage.

�Yes* �No

5.2.1 Anti-siphon, check and gate valves

Cycle the valve open and closed and check for proper operation.

�Yes �No* �N/A

5.2.2 Pressure

regulator valve

Check for proper operation. (Note that there may be small, 1/4 inch drain plugs in the bottom of the valve that are not visible by looking from above only)

�Yes �No* �N/A

5.2.3 Expansion

relief valve

Check that the valve is in the proper orientation. (Note that fuel must be discharged back to the tank via a separate pipe or tubing.)

�Yes �No* �N/A

5.2.4 Solenoid

valves

Cycle power to valve to check operation.

(Electrical solenoids can be verified by listening to the plunger opening and closing. If no audible confirmation, the valve should be inspected for the presence and operation of the plunger.)

�Yes �No* �N/A

5.2.5 Fire and

shear valves

a. Manually cycle the valve to ensure components are moving freely and that the valve handle or lever has clearance to allow valve to close completely.

�Yes �No* �N/A

b. Valves must not be wired in open position.

�Yes �No* �N/A

AST INSPECTION STANDARD 35 SEPTEMBER 2011

c. Make sure fusible element is in place and correctly positioned.

�Yes �No* �N/A

d. Be sure test ports are sealed with plug after testing is complete and no temporary test fixture or component remains connected to valve.

�Yes �No* �N/A

5.3 Interstitial

leak detection equipment

Check condition of equipment, including:

• The window is clean and clear in sight leak gauges.

• The wire connections of electronic gauges for tightness and corrosion

• Activate the test button, if applicable.

�Yes �No* �N/A

5.4 Spill

containment boxes on fill pipe

a. If corrosion, damage, or wear has compromised the ability of the unit to perform spill containment functions, replace the unit.

�Yes* �No �N/A

b. Inspect the connections to the AST for tightness, as well as the bolts, nuts, washers for condition and replace if necessary.

�Yes* �No �N/A

c. Drain valves must be operable and closed

�Yes* �No �N/A

5.5 Strainer a. Check that the

strainer is clean and in good condition.

AST INSPECTION STANDARD 36 SEPTEMBER 2011

5.5 Strainer b. Access strainer

basket and check cap and gasket seal as well as bolts.

�Yes �No* �N/A

5.6 Filter a. Check that the filter

is in good condition and is within the manufacturer’s expected service life.

Replace, if necessary.

�Yes �No* �N/A

b. Check for leaks and decreased fuel flow

�Yes �No* �N/A

5.7 Flame

arrestors

Follow manufacturer’s instructions. Check for corrosion and blockage of air passages.

�Yes* � No �N/A

5.8 Leak detector

for submersible pump systems

Test according to manufacturer's instructions and authority having jurisdiction (AHJ).

Verify leak detectors are suited and properly installed for aboveground use.

�Yes �No* �N/A

5.9 Liquid level

equipment

a. Has equipment been tested to ensure proper operation?

�Yes �No* �N/A

b. Does equipment operate as required?

�Yes �No* �N/A

c. Follow manufacturer’s instructions

�Yes �No* �N/A

5.10 Overfill

equipment

a. Follow manufacturer’s instructions and regulatory requirements for inspection and functionality verification.

�Yes �No* �N/A

b. Confirm device is suited for above ground use by the manufacturer

AST INSPECTION STANDARD 37 SEPTEMBER 2011

6.0 Insulated Tanks

6.1 Insulation Check condition of

insulation for:

• Missing sections

• Areas of moisture

• Mold

• Damage

�Yes* � No �N/A

6.2 Insulation

cover or jacket

Check for damage that will allow water intrusion

�Yes* No �N/A

7.0 Miscellaneous

7.1 Electrical

wiring and boxes

Are they in good condition?

�Yes �No* �N/A

7.2 Labels and

tags

Ensure that all labels and tags are intact and readable.

1011 Boulder Springs Drive, Suite 200 Richmond, Virginia 23225

Phone: 804-592-3900 Fax: 804-592-3901 www.brockenbrough.com

Monthly and Annual Checklists