Reference_-_U_Ultrasound_Testing_of_Oil_Storage_Tanks_Report_10_30_22_v2f_3.pdf

Operation and Maintenance of Ohmsett Contract E17PC00014

Ultrasound Testing of the Oil Storage Tanks Report

Prepared for:

BSEE Contracting Officer’s Representative (COR) Frank Jurado

BSEE Oil Preparedness Division 45600 Woodland Road

Sterling, VA 20166 Email: Frank.Jurado@bsee.gov

Phone: (571) 279-7896

Prepared by:

Applied Research Associates, Inc.

Ohmsett Facility P.O. Box 150

Leonardo, NJ 07737 www.ara.com

(732) 866-7183

Date: October 27, 2022 mailto:Frank.Jurado@bsee.gov http://www.ara.com/

Operation and Maintenance of Ohmsett Contract E17PC00014 i

Table of Contents

1. Requirement

2. Ultrasonic Thickness Readings

2.1. Horizontal Tank 1A

2.2. Horizontal Tank 1B

2.3. Horizonal Tank 2A

2.4. Horizontal Tank 2B

2.5. Vertical Tank 3

2.6. Vertical Tank 4

2.7. Vertical Tank 5

2.8. Vertical Tank 6

Ultrasound Testing of the Oil Storage Tanks Report

1. Requirement The Ultrasound Testing of the Oil Storage Tanks Report, covering the period September 1, 2021, through August 31, 2022, is stated in Contract E14PC00014 Task Order E17PD00117 and includes the following requirements.

• Section 2.2.17.1 c) The Contractor shall regularly inspect the tank farm, including ultra-sound testing of the oil storage tanks within the first year of the contract award.

• Section 2.8.DD. A copy of the test report shall be sent to the COR within 60 days of the end of each performance period.

2. Ultrasonic Thickness Readings In August 2020, ARA contracted TEAM Tank Consultants (TCI Services) under BSEE Order 140E0121F0016 to perform internal inspections of Ohmsett Oil Storage Tanks 3, 4, 2B, 2A, 5, 6, 1A, and 1B, and two concrete pit tanks.

The reports show that to forgo future inspections, a nominal range of thicknesses needs to be achieved. If the thicknesses are within the range, then the tank can be inspected once every 20 years.

To validate the thicknesses are still within range, measurements were taken using a General Electric PocketMike calibration tool 1018 steel (S/N A28706). This instrument provides a readability to two significant digits. TCI Services measurement methods provided a readability to three significant digits. The readings for all tanks are within range and confirm no internal inspections are required.

2.1. Horizontal Tank 1A

Thickness Readings 10/21/2022

2022 POCKETMIKE THICKNESS READINGS

TANK 1A BOTTOM TOP NORTH SOUTH

RING 1 0.250 0.250 0.250 0.240

RING 2 0.250 0.250 0.250 0.240

RING 3 0.240 0.240 0.240 0.250

HEAD BOTTOM TOP CENTER LEFT RIGHT

EAST 0.250 0.250 0.250 0.250 0.240

2.2. Horizontal Tank 1B

TANK 1B BOTTOM TOP NORTH SOUTH

RING 1 0.250 0.250 0.250 0.240

RING 2 0.250 0.250 0.250 0.240

RING 3 0.240 0.240 0.240 0.250

EAST

WEST 0.310 0.300 0.310 0.310 0.310

2.3. Horizonal Tank 2A

TANK 2A BOTTOM TOP NORTH SOUTH

RING 1 0.240 0.240 0.240 0.240

RING 2 0.240 0.240 0.250 0.250

RING 3 0.240 0.250 0.250 0.250

WEST 0.250 0.250 0.240 0.250 0.250

2.4. Horizontal Tank 2B

TANK 2B BOTTOM TOP NORTH SOUTH

RING 1 0.240 0.240 0.240 0.240

RING 2 0.240 0.240 0.240 0.240

RING 3 0.250 0.240 0.240 0.240

WEST 0.250 0.250 0.240 0.240 0.250

2.5. Vertical Tank 3

TANK 3

RING 1 BOTTOM MIDDLE TOP

1 0.240 0.250 0.240 2 0.240 0.250 0.240 3 0.240 0.240 0.240 4 0.230 0.240 0.240

RING 2 0.240 0.240 0.240

RING 3 0.250 0.240 0.240

ROOF NORTH EAST WEST

2” 0.170 0.170 0.170 4’ 0.170 0.170 0.170

2.6. Vertical Tank 4

TANK 4

RING 1 BOTTOM MIDDLE TOP

1 0.240 0.250 0.240 2 0.240 0.250 0.240 3 0.240 0.250 0.250 4 0.240 0.250 0.240

RING 2 0.250 0.250 0.250

RING 3 0.240 0.250 0.240

ROOF NORTH EAST WEST

2” 0.170 0.180 0.180

2.7. Vertical Tank 5

Thickness Readings 10/21/2022

2022 POCKETMIKE THICKNESS READINGS

TANK 5

RING 1 BOTTOM MIDDLE TOP

1 0.240 0.250 0.240 2 0.240 0.250 0.240 3 0.240 0.250 0.250 4 0.240 0.250 0.240

RING 2 0.240 0.240 0.240

RING 3 0.240 0.240 0.240

ROOF NORTH EAST WEST

2.8. Vertical Tank 6

Thickness Readings 10/21/2022

2022 POCKETMIKE THICKNESS READINGS

TANK 6

RING 1 BOTTOM MIDDLE TOP

1 0.240 0.240 0.240 2 0.240 0.250 0.240 3 0.240 0.250 0.250 4 0.240 0.250 0.240

RING 2 0.250 0.250 0.250

RING 3 0.240 0.250 0.250

RING 3 MEASURED IN TRIPLICATE

ROOF NORTH EAST WEST