Attachment J2 - Blanding-Fac T3653 (Tank 2)-FINAL-2016.pdf

TANK FACILITY T3653 (TANK 2) STI SP001

FORMAL EXTERNAL INSPECTION REPORT

Camp Blanding JTC, Starke, Florida

A/E Contract No. W9128F-12-D-0006; Delivery Order No. 0010

Submitted to:

U.S. Army Corps of Engineers Omaha District

1616 Capital Avenue; Omaha, NE 68102

6 March 2016

Submitted by:

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

Job No. 15-104.03

SPCC Mandated Shop-Built AST Inspections Camp Blanding JTC, Tank T3653

Executive Summary page i

EXECUTIVE SUMMARY

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

Contract No. W9128F-10-D-0006 Delivery Order 0010 to perform SPCC Mandated Shop Built AST

Inspections. As required by this task, Brockenbrough executed a tank inspection site visit to Camp

Blanding JTC near Starke, Florida. A formal external inspection per the guidelines of STI SP001 “Standard for the Inspection of Aboveground Storage Tanks” was conducted for Tank Facility No. T3653 (locally identified as the Tank 2) on November 15, 2015. This inspection is in compliance with applicable federal, state, and local regulations, as well as the facility’s SPCC Plan.

Tank Facility T3653 is a 10'-6" diameter, 15'-6" long horizontal tank, UL Listed as a “Closed Type Diked

Aboveground Tank for Flammable Liquids”. The tank has a nominal storage capacity of 10,000 gallons of

Jet fuel (F-24). The tank fabrication date is 1994 (per Facility Personnel), manufactured by Buffalo Tank

Corporation. Because this tank has spill control and a continuous release detection method, 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, with no mandatory repairs noted. However, several items were observed that are not in compliance with applicable federal, state, and local codes and regulations or military criteria. The noted deficiencies are included in more detail in Section ‘C’ along with recommended repairs and rough order of magnitude costs.

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 December 2035. This inspection interval will meet all the applicable requirements for federal, state, and local regulations.

Certification Signature:

Bryan Strayer, PE Mechanical Engineer;

STI Inspector No. AST-990220

Table of Contents page ii

TABLE OF CONTENTS

EXECUTIVE SUMMARY ................................................................................................................................... i

A. General Project Information

1. STI SP001 In-Service Inspections

2. Site Information

3. Previous Inspections

4. Proposed Future Projects and Upgrades

B. Tank Construction and Appurtenances

1. Tank Construction

2. Tank Supports and Foundation

3. Secondary Containment

4. Tank Coating System

5. Tank Appurtenances

a. Venting

b. Gauging

c. Stairs and Platforms

d. Grounding and Bonding

e. Other Appurtenances

6. Tank Piping System

7. Fire Protection Systems:

C. Findings and Recommendations

1. Mandatory Repairs

2. Recommended Repairs

a. Access Platform

b. Tank Exterior

c. Level Alarm System

3. Other Noted Tank Items

a. Access Manholes

b. Overfill Protection

c. Water Draw-Off Connection

4. Recommended Site Upgrades

D. Inspection Photographs

E. Tank Configuration Sketch

Appendix ‘1’ – STI Formal External Inspection Checklist

Appendix ‘2’ – STI Monthly and Annual Checklists

General Project Information page 3

A. General Project Information

1. STI SP001 In-Service Inspections

This project will perform in-service tank inspections at various 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 T3653, an STI SP001 Formal External Inspection was performed.

2. Site Information

On November 15, 2015 Brockenbrough performed a site visit to Camp Blanding Joint Training

Facility (JTC) to perform inspections of three aboveground storage tanks. Camp Blanding is located in Clay County, near the city of Starke, Florida. Its 73,000 acre site is the primary military reservation and training facility for the Florida Army National Guard.

3. Previous Inspections

No previous formal inspections of Tank Facility T3653 were found.

4. Proposed Future Projects and Upgrades

There are currently no reported projects planned for this tank site.

Tank Construction and Appurtenances page 4

B. Tank Construction and Appurtenances

1. Tank Construction

The fabrication date of this tank is 1994 (per Facility Personnel), manufactured by Buffalo Tank

Corporation. UL Nameplate was present, but only partially readable. The Tank is UL listed as a

"Closed Type Diked Aboveground Storage Tank for Flammable Liquids". The tank is single wall, carbon steel constructed of three 0.25-inch thick butt-welded shell courses with 0.281-inch thick flat heads butt-welded to the shell. No dents, distortion or mechanical damage was observed. No coating failure or areas of corrosion were noted, but the tank top is covered with dust, light debris and algae. The primary tank measures 10'-6" diameter by 15'-6" long and has a nominal capacity of

10,000 gallons.

2. Tank Supports and Foundation

The tank is supported by steel saddles that bear down on the integral steel containment floor. The skid mounted tank and containment system rests on a concrete tank pad. The condition of the steel tank saddles were not able to be evaluated, as the interior of the integral containment area was not accessible. Concrete tank pad was found to be in good condition.

3. Secondary Containment

Secondary containment is provided by an integral steel containment dike measuring 20'-8" long, 12'-0" wide and 6'-0" tall offering a total capacity of approximately 11,100 gallons. The integral containment system includes an overflow channel from a 24-inch tank-top manhole. Containment dike release is controlled by a series of two ball valves, one of which has the operating handle removed. Containment area features a monitoring hatch to allow visual inspection. The containment dike capacity is in compliance with all applicable regulations and is in generally good condition. No liquid or debris was noted within the containment area when inspected through the monitoring hatch.

4. Tank Coating System

The exterior coating is of unknown type and found to be in fair condition with no areas of coating failure noted. The tank has been provided with some basic labeling but is missing the tank number, facility number, and capacity. The tank top is covered with dust, light debris and algae. The status of the interior coating of the tank is unknown.

Tank Construction and Appurtenances page 5

5. Tank Appurtenances

a. Venting

This tank features a 3-inch updraft style open normal vent of unknown manufacturer. The venting capacity is in compliance with all applicable codes. The normal vent is in good condition and free of obstructions. The tank also features an 8-inch Morrison Brothers Fig 244 emergency vent with a capacity of 453,300 cfh. The emergency venting capacity is adequate for this tank per the requirements of STI SP-001. The emergency vent was found to be fully operable.

b. Gauging

The tank has a 4-inch Veeder Root ATG probe that monitors product and water level. The associated control module and alarm are mounted on a nearby control rack. There is an independent high level alarm probe. The tank also has a clock-style mechanical gauge located on the front head of the tank. The probe was not accessible for inspection, but the gauge appeared to be working properly. The reading was consistent with that of the ATG.

c. Stairs and Platforms

A vertical, painted steel ladder and platform at the rear head of the tank provides access to the top of the tank. Ladder and platform were found to be in fair condition with no signs of coating failure noted.

d. Grounding and Bonding

There is a lug with a grounding cable connected to the integral steel dike that terminates in the ground just off of the concrete tank pad.

e. Other Appurtenances

The tank has a 4-inch manual gauging hatch for sampling and manual gauging, a 24-inch access manhole, 24-inch overflow manhole, and a 4-inch receipt nozzle. A 4-inch issue nozzle and 1-inch water draw-off nozzle are located on the front head of the tank.

6. Tank Piping System

Fuel is received and issued through 4-inch butt-welded carbon steel piping that transitions to stainless steel after leaving the containment dike. Fuel is received from the truck off-loading station and is issued to a refueler fillstand. Carbon steel piping was found to be in fair condition, but was covered with dust, light debris and algae. Stainless steel piping was in good condition.

7. Fire Protection Systems:

There is no fire protection system required or present on this storage tank. Two fire hydrants were noted within 300 feet of this tank.

Tank Construction and Appurtenances page 6

Table B-1: General Tank Construction Data

Item Description

Owner Florida Army National Guard

Tank Identification Facility No. T3653 (Tank 2)

Location Camp Blanding JTC, Starke, Florida

Manufacturer Buffalo Tank Corporation

Design Standard Closed Type Diked Aboveground Tank for Flammable Liquids

Year Built 1994 (per Facility Personnel)

Current Product Stored Jet fuel (F-24): specific gravity: 0.78 to 0.84, vapor pressure: 0.03 psia at 100F, flash point: 100F, Class II combustible liquid

Dimensions 10'-6" diameter, 15'-6" long (horizontal cylindrical)

Storage Capacity 10,000 gallons nominal capacity

Cleaning, Inspection, or Repair

No previous inspection or repair reports were found.

Foundation Skid mounted tank and containment system rests on concrete tank pad.

RPB/Leak Detection Containment area features a monitoring hatch to allow visual inspection.

Shell Construction Single wall, carbon steel constructed of three 0.25-inch thick butt-welded shell courses with 0.281-inch thick flat heads butt-welded to the shell.

Stairs/Ladders Vertical, painted steel ladder and platform at the rear end of the tank provides access to top of tank.

Manholes 24-inch access manhole; 24-inch overflow manhole.

Interior Coating System Status unknown

Exterior Coating System Exterior coating is of unknown type and found to be in fair condition with no areas of coating failure noted.

Level Gauging 4-inch ATG probe that monitors product and water level. A clock-style mechanical gauge is located on the front head of the tank.

Overfill Protection/Level Alarms

Independent high level alarm probe.

Piping 4-inch butt-welded carbon steel issue and receipt at tank transitioning to stainless once outside of containment dike.

Venting/Vapor Emission Controls

3-inch updraft style open vent of unknown manufacturer; 8-inch Morrison Bros Fig 244 emergency vent with a capacity of 453,300 cfh.

Strapping Tables Generic manual strapping tables provided by Tank Manufacturer

Water Draw-Off/Product Recover System

1-inch water draw-off connection

Secondary Containment Secondary containment is provided by an integral steel containment dike measuring 20'-8" long, 12'-0" wide and 6'-0" tall offering a total capacity of approximately 11,100 gallons.

Fire Protection System No fire protection present on tank (none is required); two fire hydrants were found within the general tank vicinity.

Findings and Recommendations page 7

C. Findings and Recommendations

Tank Facility T3653 was found to be in generally fair condition. The tank is fully serviceable, with no mandatory deficiencies noted that require immediate repair. There were several items observed, however, that are not in full compliance with federal, state, and local regulations or military criteria.

These noted deficiencies are listed below, with repair recommendations and order of magnitude repair cost estimates. For basis of the cost estimate, it is assumed that the repairs will be completed by local action such as the Reoccurring Maintenance and Minor Repair program.

1. Mandatory Repairs

Mandatory repairs represent items that require immediate attention, in order to prevent imminent risk to system operators, equipment integrity, or the adjacent environment. If these repairs cannot be completed within a two month period, the tank should be removed from service until the repairs are completed. There are no Mandatory Repairs currently required for this tank.

2. Recommended Repairs

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. These items may be required by federal, state and local codes or by military criteria.

The total Cost of Recommended Repairs for this tank is $18,500

a. Access Platform

The existing platform provides access to the tank top, but does not provide access to the majority of tank appurtenances. A full length galvanized steel platform with guardrails should be provided to allow personnel safe access to all tank top appurtenances.

Estimated Cost: $14,000

b. Tank Exterior

The tank exterior coating system was found to be in generally fair condition, but algae, dust, and light debris was noted on the tank. The tank should be cleaned and a biocide used to prevent future algae growth. Labels should be provided for the Tank Number, Real Property

Number, and capacity.

Estimated Cost: $3,000

Findings and Recommendations page 8

c. Level Alarm System

This tank is equipped with a Veeder Root TLS 350 ATG System. This system is currently used only to indicate product and water levels within the tank. An independent level alarm system provides a single high level alarm point, but UFC 3-460-01, Table 8-1 item (I) requires a high, high-high, low, and low-low alarm point for this tank. The three additional alarm points (high-high, low, and low-low) should be programmed into the ATG system by a qualified SPAWAR

Contractor in order to meet the requirements of the UFC.

Estimated Cost: $1,500

3. Other Noted Tank Items

Other Noted Items represent minor non-critical deficiencies that are not recommended for repair due to a prohibitive cost to benefit ratio or other reasons. If these repairs are deemed necessary by the stakeholders, replacing the tank should be considered.

a. Access Manholes

UFC 3-460-01, Table 8-1.a requires all tanks of this configuration over 5,000 gallons to have two 36-inch access manholes. One of these manholes is required to include an internal ladder.

This repair is not recommended as the benefit of providing the new manholes and internal ladder does not justify the cost of the repair. The existing 24-inch manhole appears to be adequate for the Activity’s operational needs.

b. Overfill Protection

UFC 3-460-01, Table 8-1, Item ‘x’, requires tank receipt piping to have a hydraulically operated diaphragm control valve to prevent overfilling of the tank. This tank does not have such a valve. This repair is not recommended, as the benefit of providing the new valve and associated float pilot does not justify the cost of the repair. The high level alarm (in conjunction with fully manned off-loading operations) appears to be adequate for the

Activity’s operational needs.

c. Water Draw-Off Connection

UFC 3-460-01, Table 8-1.a requires all tanks of this configuration to have a 2-inch water draw-off connection with a double block-and-bleed valve for isolation. This repair is not recommended as the benefit of providing the larger water drain line with a double block-and-bleed valve does not justify the cost. The existing 1-inch drain line with ball valve appears to be adequate for the Activity’s operational needs.

4. Recommended Site Upgrades

Site Upgrades are recommended upgrades to the site, which would still need to be addressed even if the tank were repaired or replaced. These items may be required by federal, state and local codes or by military criteria. There are no Recommended Site Upgrades currently recommended for this tank.

Inspection Photographs page 9

D. Inspection Photographs

Overview of Tank Facility T3653, Locally Identified as Tank #2

Overview of the Fueling Facility, Showing the Truck Off-Loading and Fillstand Area, the Pumping and Filtration Equipment, and the Tanks

Inspection Photographs page 10

Tank Appurtenances Including the Access Manhole with Emergency Vent and Level Alarm, Receipt

Nozzle, ATG, and Manual Gauging Hatch

Tank Appurtenances Including the Normal Vent, Overflow Manhole, and Access Manhole with Emergency Vent and Level Alarm

Inspection Photographs page 11

The Integral tank Containment Dike (with rain covers), Mechanical Clock Gauge, Grounding Wire, Piping Penetrations and the Associated Concrete Tank Pad.

The Vertical Stair, Access Platform, and Interstitial Drain at the Rear Head of the Tank

Inspection Photographs page 12

Tank Piping is Coated Carbon Steel that transitions to Stainless Steel outside the Containment Dike

The Pumping and Filtration Equipment, Refueler Fillstand, and Tank Truck Off-Loading Station

Tank Configuration Sketch

E. Tank Configuration Sketch

STI External Inspection Checklist

Appendix ‘1’ – STI Formal External Inspection Checklist

UL SWRI

API Other

Protected

Type: Type:

Size: Date Installed:

Carbon steel End Conn: Size: 4-inch Material: Carbon steel End Conn: Size: 4-inch

Issue To:

Interior Coating:

Double Bottom

10,000 gallons

Other:

20'-8" long, 12'-0" wide, 6'-0" tall

Level Alarms:

Butt-welded

Tank truck off-loading station

Butt-welded

Refueler fillstand

N/A

Integral steel containment dike

AST-990220

Secondary Containment, Overfill, and CRDM

Overfill Protection:

Tank Inspector Name:

Buffalo Tank Corporation

1994 (per Facility Personnel)

Inspector Certification Number:

Tank 2

Open Type Dike

Tank Outside Dimensions: Useable Capacity:

Plastic / Fiberglass

Inspection Date:

Design Std

Horizontal Single Wall

N/A

Closed Type Dike

Aboveground Tank for

Flammable Liquids

Steel containment dike

N/A

Visual

N/A

Insulated

Jet fuel (F-24)

Material:

Receipt From:

Bryan Strayer

Vertical

Rectangular

Double Wall

Fire Resistant

Closed Type Dike

Change of Service:

Last Repair:

Tank Coatings:

Exterior Coating:

Unknown coating system

Status unknown

STI SP001 FORMAL EXTERNAL INSPECTION (FEI) CHECKLIST

Camp BlandingProject Site:Project Name:

Project Location:

Brockenbrough Job No.:

SPCC Mandated Shop Built AST Inspections

Starke, Florida

General Inspection Information

15-104.03

Submitted to:

Contract No.:

Omaha District USACE

W9128F-10-D-0006

N/A

Tank Manufacturer:

Tank Construction Date: Nominal Capacity:

Release Prevention Barrier

Overfill Protection / Level Alarms:

Independent high level alarm High level alarm

Receipt Piping Configuration Issue Piping Configuration

Tank Piping

Secondary Containment

None

Tank Specifications

Previous Tank Inspection Date:

Continuous Release Detection Monitoring

Type:

Date Installed:

Current Product:

Tank Facility No.:

Local Tank ID No.:

November 15, 2015

T3653

Tank Construction and Configuration

Coated

10'-6" diameter, 15'-6" long

STI SP001 FORMAL EXTERNAL INSPECTION (FEI) CHECKLIST

Camp BlandingProject Site:Project Name: SPCC Mandated Shop Built AST Inspections

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

Pass Fail N/A

The tank is supported by steel saddles that bear down on the integral steel containment floor.

The condition of the steel tank saddles was not able to be assessed, as the interior of the integral containment area was not accessible.

· Degradation

Ground slopes away from tank

Soil resting against/covering side of tank

Cracking or spalling

Skid mounted tank and containment system rests on concrete tank pad.

Concrete tank pad was found to be in good condition.

7.1.6 Tank Foundation

· Pad plates between the supports and shell are in good condition

· Corrosion or coating failure

Review prior inspections, repairs and alterations data No previous inspection or repair reports were found.

UL Nameplate was present, but only partially readable

Tank is assumed to be UL listed as an "Closed Type Diked Aboveground

Storage Tank for Flammable Liquids"

7.1 General

TASK STATUS COMMENTS

Inspect against applicable industry standards

Settlement

Check Supports for :

Welds are in good condition

7.1.5 AST Fabrication

7.1.3 Past Records

7.1.4 AST Nameplate Data

Water drains away from tank

ITEM

Cracking

Record data and check accuracy against actual conditions

Secured properly on foundation or grade

7.1.7 Tank Supports

Exposed rebar

· Wash-out or voids

Check Foundation for :

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

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Pass Fail N/A

Operable and in good condition

Check Containment for :7.1.8.1 Secondary Containment

Liquid or foreign materials present in the area

Good overall condition

Containment dike capacity is in compliance with all applicable regulations and is in generally good condition. No liquid or debris was noted within the containment area when inspected through the monitoring hatch.

The venting capacity is in compliance with all applicable codes. The normal vent is in good condition and free of obstructions.

Receipt and issue piping is a 4-inch butt-welded carbon steel, transitioning to stainless steel just outside the containment dike wall.

Carbon steel piping was found to be in fair condition, but was covered with dust, light debris and algae. Stainless piping was in good condition.

Containment dike release is controlled by a series of two ball valves, one of which has the operating handle removed.

Containment area features a monitoring hatch to allow visual inspection.

Leakage

7.1.8.2 CRDM / Spill Control

Coating failure·

Liner degradation

Corrosion

Check Spill Control for:

ITEM

Operable and in good condition

Locked

Check Piping for :

Stress or leakage

Check Drain Valves for:

Corrosion

Rusted bolted connections

Poppets move freely and passages are unobstructed

Adequate size and capacity

Check Vents For:

TASK STATUS COMMENTS

3-inch updraft style open vent of unknown manufacturer.

Good overall condition

Wash-out

Liquid or foreign materials present in the area

Secondary containment is provided by an integral steel containment dike measuring 20'-8" long, 12'-0" wide and 6'-0" tall offering a total capacity of approximately 11,100 gallons. Integral Containment system includes an overflow channel from a 24-inch tank-top manhole.

Degradation

7.1.8.3 Drain Valves

7.1.9.1 Piping & Connections

7.1.9.2 Normal Vents

Holes or cracks in wall or floor

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

Pass Fail N/A· Corrosion

7.1.10 Tank Grounding & Bonding

Broken welds, Bent Members

7.1.11 Stairways, Handrails, and

Platforms

7.1.9.3 Tank Gauges

(Interstitial Leak Sensor)

· Readout is consistent with mechanical gauge 4-inch ATG probe that monitors product and water level. The Veeder

Root control module and alarm are mounted on a nearby control rack.

Vertical, painted steel ladder and platform at the rear end of the tank provides access to top of tank. Ladder and platform were found to be in fair condition with no signs of coating failure noted.

Operable / in good condition

There is a lug with a grounding cable connected to the integral steel dike that terminates in the ground just off of the concrete tank pad.

The probe was not accessible for inspection, but the gauge appeared to be working properly. The reading was consistent with that of the ATG.

COMMENTS

8-inch Morrison Brothers Fig 244 with a capacity of 453,300 cfh.

A clock-style mechanical gauge is located on the front head of the tank.

Independent high level alarm probe.

The venting capacity is adequate for this tank per the requirements of

STI SP-001. The emergency vent was found to be operating properly.

7.1.9.3 Tank Gauges

(Level Alarm)

STATUS

Check Mechanical Gauge For:

7.1.9.3 Tank Gauges (ATG)

Positive alarm from submersion

Correct length of alarm setting

Check Level Alarm For:

Positive alarm from submersion

Correct length of alarm setting

Floats, guides wiring, and attachments in good condition

Check ATG For:

7.1.9.3 Tank Gauges (Mechanical

Gauge)

Covers move freely and passages are unobstructed

Testing knob engages tape

Grounding element secured and in good condition

Check Stairways and Platforms for :

7.1.9.2 Emergency Vents

TASK

Check Vents For:

· Correct length for tank diameter

· Readout is consistent with ATG

Adequate size and capacity

Check Level Alarm For:

Floats move freely on Probe

ITEM

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

Exterior coating is of unknown type and found to be in fair condition with no areas of coating failure noted. The status of the interior coating is unknown. Tank has been provided with some basic labeling but is missing tank number, facility number, and capacity. Tank top is covered with dust, light debris and algae.

7.3.2 Modifications to the AST

ITEM

Steel is dented, distorted, bulging, or buckled

Changes made post fabrication

Exterior corrosion noted

Cracking or pinholes noted

Check Shell Attachments For :

ITEM TASK STATUS COMMENTS

· Coating of tank heads and shell is in good condition

No post fabrication changes were noted for this tank.·

Tank is single wall, carbon steel constructed of three 0.25-inch thick butt-welded shell courses with 0.281-inch thick flat heads butt-welded to the shell. No dents, distortion or mechanical damage was observed.

No coating failure were noted or areas of corrosion were noted, but tank top is covered with dust, light debris and algae.

Determine nominal shell thickness using one of the following methods:

Check shell plates and Heads For :

TASK

.249inch / 0.248 inch / 0.250 inch

0.284 inch / 0.266 inch

Tank Head (Front):

Tank Head (Rear):

Tank Shell:

7.3.1 Tank Shell and Heads

STATUS COMMENTS

7.3 Horizontal AST

0.273 inch / 0.268 inch

Stress or corrosion noted

Mechanical damage noted

Tank has all required labeling and identification

Tank Head and Shell Thickness

UT Measurements (Horizontal AST)

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

7.2.2 Consult the tank manufacturer

7.2.4 Measure the tank thickness at various locations and take an average

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

Head Thickness:

Shell Thickness:

0.281 inch

0.25 inch

7.2 Determine the original shell thickness of the AST

7.1.12 Tank Coatings Check Tank Exterior For:

Additional Findings and Comments:

2) Very limited tank top access due to lack of platform.

1) Tank is covered with dust, light debris, and light algae.

3) Tank does not include labels for Tank Number, Facility Number, or capacity.

STI Monthly and Annual Checklists

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

Additional Comments:

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.

Additional Comments:

1011 Boulder Springs Drive, Suite 200 Richmond, Virginia 23225

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