WI 0101 SAFE FOR MAN CERTIFICATION OF TANKS FOR CLEANING.docx

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GUADALUPE MARINE CHEMIST GAS FREE
Solicitation number
N4044326Q0047
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This is a Statement of Work for marine chemist services supporting the USNS GUADALUPE (T-AO 200) hull structure maintenance in September 2026. The contractor shall provide a certified Marine Chemist to gas free and certify twenty-two (22) cargo and ballast tanks located across multiple Tank Top Deck areas for safe entry and cleaning by Ship's Force. The work will be performed at Naval Air Station North Island in San Diego, California, from September 12-22, 2026. Services include initial "Safe for Man" certification testing for each tank and subsequent daily inspections and testing by a qualified competent person throughout the period of performance to maintain certified safe conditions. The Marine Chemist is expected to conduct approximately eight (8) visits averaging two hours each as tanks become available for testing, with the contractor eligible to credit back up to four (4) unused visits upon completion. Tanks requiring certification include ten Cargo Oil (DFM) tanks with capacities ranging from 178,147 to 892,439 gallons, and twelve Fuel Oil tanks with capacities ranging from 2,174 to 140,182 gallons. The contractor and all subcontractors must comply with applicable General Technical Requirements (GTR) and maintain coordination with the Government regarding Marine Chemist scheduling, preferably with prior-day notice.

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USNS GUADALUPE

(T-AO 200)

100 – HULL STRUCTURE

SEPT 2026
ITEM NO. 101CATEGORY “A”MSC MAINT HUB SAN DIEGO

SAFE FOR MAN CERTIFICATION OF TANKS FOR CLEANING

1.0 ABSTRACT:

1.1 Provide the services of a Marine Chemist for “Safe for Man” certification of twenty-two (22) total tanks for safe entry and cleaning by Ship’s Force.

2.0 REFERENCES/ENCLOSURES:

2.1 List of Applicable Tanks, Voids and Cofferdams to be Opened

3.0 ITEM LOCATION/DESCRIPTION:

3.1 Location/Quantity:

3.1.1. Location: Multiple tank locations across mostly the Tank Top Deck

3.2 Item Description/Manufacturer's Data: None

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICES/INFO: None

5.0 NOTES:

5.1 The contractor and all subcontractors, regardless of tier must consult the General Technical Requirements (GTR) to determine applicability to this work item. In performance of this work item, the contractor and all subcontractors must comply with all applicable GTRs.

5.2 Location/POP: Naval Air Station North Island San Diego, CA

SEPTEMBER 12-22, 2026

5.3 Cleaning of cargo and ballast tanks will be accomplished by Ship’s Force (in San Diego).

6.0 QUALITY ASSURANCE REQUIREMENTS: Refer to Paragraph 7.0

7.0 STATEMENT OF WORK:

7.1 Contractor shall provide a certified Marine Chemist to gas free twenty-two (22) cargo and ballast tanks, throughout the period of performances for tank cleaning.

7.2 Once Marine Chemist certificates are issued for each tested Tank, Contractor to maintain “Safe for Man” conditions as specified by Chemist’s certificate for each Tank.

7.2.1. Contractor shall provide a qualified “competent person” through safety program to DAILY inspect and test conditions of each certified tank for remainder of Period of Performance.

7.3 Marine Chemist is expected to be available for multiple workdays as separate tanks become available for “Safe for Man” testing throughout Period of Performance.

7.3.1. Contractor to coordinate Marine Chemist visits preferably with a prior-day notice for testing of Tanks as newly available for testing and certification.

7.3.2. For bidding purposes, estimate a total of eight (8) Marine Chemist visits for approximately two hours per visit.

7.3.2.1. Contractor to CREDIT back up to four (4) unused Marine Chemist visits upon completion of Period of Performance.

Enclosure 2.2.1 - USNS GUADALUPE (T-AO 200) List of Applicable Tanks, Voids and Cofferdams to be Opened:

Cargo Oil (DFM) Tanks

Description
Tank Location
100% Capacity

(gals) Area

(SF)

Arrival Condition (Ltons)

No. 1 DFM Cargo Tank P/S
(5-22-2/1)
2x(266,931)
No. 2 CTR. JP-5 Cargo Tank
(5-26-0)
892,439
No. 3 CTR DFM/JP-5 Cargo Tank
(5-31-0)
333,206
No. 3 DFM Cargo Tank P/S
(5-31-2/1)
2x(274,750)
No. 5 DFM Cargo Tank P/S
(5-37-2/1)
2x (178,147)
No. 7 CTR DFM/JP-5 Cargo Tank
(5-43-0)
666,419
No. 7 DFM Cargo Tank P/S
(5-43-2/1))
2x(377,010)
No. 8 DFM/JP-5 Cargo Tank
(5-47-0)
666,419
No. 9 CTR JP-5 Cargo tank
(5-51-0)
666,419
No.9 DFM Cargo Tank P/S
(5-51-2/1)
2x(373,849)
No. 10 CTR JP-5 Cargo tank
(5-55-0)
566,457
No. 10 DFM Cargo Tank P/S
(5-55-2/1)
Port 380,460

Stbd 348,816

Fuel Oil Tanks

Description
Tank Location
100% Capacity

(gals) Area

(SF)

Arrival Condition (Ltons)

No. 2 F.O. Deep Tank P/S
(5-59-2/1)
2x(70,803)
No. 3 F.O. Deep Tank P/S
(5-98-2/1)
2x(140,182)
F.O. Service Tank
(3-60-2)
24,203
F.O. Settling Tank
(3-60-0)
44,005
AUX F.O. Storage Tank
(3-60-1)
57,022
AUX F.O. Service Tank FWD
(2-60-2)
13,699
AUX F.O. Service Tank AFT
(2-64-2)
15,456
AUX F.O. Settling Tank
(3-60-4)
43,093
Contaminated F.O. Tank
(5-60-0)
19,702
Aux Contaminated F.O TANK
(5-67-2)
8,475
F.O. Purifier Sludge Tank
(3-64-4)
2,174

0101-1

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