USCGC HUDSON TANK, POTABLE WATER CLEANING AND INSPECTION

USCGC HUDSON (WLIC 801) SPECIFICATION FOR DOCKSIDE REPAIRS FY2026 Developed By: Erik C Elasik (Rev-0, 15 October 2025) -- 1 of 26 -- USCGC HUDSON (WLIC-160A) DOCKSIDE AVAILABILITY FY2026 15 (Rev-0) 12314_ESD_0423_FLT REC_12314_FLT160’ WLIC ‘A’ Class (ALL) (0611) WORK ITEM 1: Tanks, Potable Water, Clean and Inspect 1. SCOPE 1.1 Intent. This work item describes the requirements for the Contractor to clean and inspect the following tank(s): TABLE 1 - TANKS TYPE OF TANK LOCATION CAPACITY - 95% (GALLONS) LOW SUCTION (GALLONS) Potable Water 2-34-1-WW 3,306 100 Potable Water 2-34-2-WW 3,306 100 Potable Water 2-44-1-WW 1,779 50 Potable Water 2-44-2-WW 1,779 50 Potable Water 2-49-1-WW 3,551 100 Potable Water 2-49-2-WW 3,551 100 1.2 Government-furnished property. None. 2. REFERENCES COAST GUARD DRAWINGS Coast Guard Drawing 160 WLIC 103-002, Rev A, Booklet of General Plans COAST GUARD PUBLICATIONS -- 2 of 26 -- USCGC HUDSON (WLIC-160A) DOCKSIDE AVAILABILITY FY2026 16 (Rev-0) Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2022, General Requirements OTHER REFERENCES American National Standards Institute/NSF International (ANSI/NSF) 61, 2015, Drinking Water System Components - Health Effects American National Standards Institute/American Water Works Association (ANSI/AWWA) C652, 2011, Disinfection of Water-Storage Facilities 3. REQUIREMENTS 3.1 General. 3.1.1 CIR. None. 3.1.2 Tech Rep. Not applicable. 3.1.3 Protective measures. The Contractor must furnish and install all protective measures in accordance with SFLC Std Spec 0000, paragraph 3.3.3 (Vessel component, space, and equipment protection). 3.1.4 Interferences. The Contractor must handle all interferences in accordance with SFLC Std Spec 0000, (Interferences). Known interferences include, but are not limited to the following: • Fluid contents • Piping • RO system components • Deck grating. NOTE Coast Guard personnel will operate all shipboard machinery and equipment. 3.2 Operational test, initial. Prior to commencement of work, the Contractor must witness Coast Guard personnel perform an initial operational test of the equipment listed below to demonstrate existing operational condition. Submit a CFR. • TLI 3.3 Plug log. The Contractor must keep a written record of all plugs put in any tanks vents. A separate list must be kept for each tank being entered. -- 3 of 26 -- USCGC HUDSON (WLIC-160A) DOCKSIDE AVAILABILITY FY2026 17 (Rev-0) 3.3.1 Ensure that all plugs are removed from each tank upon completion of work in the tank. 3.3.2 Ensure the plug log is available to the Coast Guard inspector when the inspector is performing his close-out inspection on each tank. 3.4 Tank content removal. The Contractor must remove and dispose of all fluids and/or residues in accordance with all applicable Federal, state, and local regulations. The Contractor must notify the Dockmaster prior to filling or draining the potable water tank(s), when this item is being executed in a drydock availability. The Contractor must refer to Coast Guard drawings 160 WLIC 103-002 for guidance. 3.5 Tank cleaning. The Contractor must remove tank cover(s); clean tank interior surfaces free of all foreign materials, such as sediment, sludge and bacterial growth. Remove all persistent residues, taking care not to damage any tank coating system. Remove cleaning media and residues continuously from the tank during the washing process. Remove any residual wash media and wipe up residual moisture with clean lint-free cloths. Collect, contain, and dispose of all wash media, residues, and cleaning materials in accordance with all Federal, state, and local regulations. 3.6 Inspection. The Contractor must visually inspect all tank interior surfaces, including, but not limited to bulkheads, floor and overhead plating, structural members, manhole cover surfaces, fasteners and gasket seating surfaces. Complete the “Tank and Void Assessment Form” (found in the Work Item titled “General Requirements”) and submit via CFR. Electronic PDF version of this form will be furnished by the COR upon request. Include the following, as applicable: • Tank structural condition. • Inaccessible areas, if any. • Condition of tank coating, including measurements taken, percentage, location, and type of coating failure. • Tank level indicator (TLI) and/or float switch condition (if applicable). • Sounding tube and striker plate condition. • Suction and discharge piping condition. • Fastener material and condition. 3.7 Tank closing. The Contractor must notify the COR at least 24 hours prior to closing the tank(s) and ensure tank closure is accomplished in the presence of the Coast Guard Inspector. After satisfactory inspection by the Coast Guard Inspector, and completion of all authorized repairs, close tank manhole cover(s) with new gasket material conforming to ANSI/NSF 61. Renew all stud cotton grommets (as applicable) upon reinstallation of manhole cover(s). 3.7.1 The Contractor must renew 100% of nuts and washers. 3.8 Tank disinfecting. After all other work involving the potable water system and tank closing have been completed, the Contractor must disinfect and treat the affected potable water tank(s) and associated disturbed piping and components, as necessary, to meet or exceed the requirements of AWWA C652. After tank disinfecting, remove and dispose of all treated water in accordance with all Federal, state and local regulations. Ensure that no one enters the tanks once disinfection is completed. Submit CFR providing confirmation that disinfection of tank(s) and associated potable water system disturbed piping -- 4 of 26 -- USCGC HUDSON (WLIC-160A) DOCKSIDE AVAILABILITY FY2026 18 (Rev-0) and components has been completed and certifying that all sampling and testing is negative for coliform organisms. NOTE Coast Guard personnel will operate all shipboard machinery and equipment. 3.9 Operational test, post repairs. After completion…