Clean and flush Sewage Holding Tank SOW Sangamon.doc

USCGC CHENA (WLR-75409) DRYDOCKING AVAILABILITY, 1996

21-Nov-24

CLEAN, FLUSH AND INSPECT SHIPBOARD SEWAGE HOLDING TANK

This work item describes the requirements for the Contractor to clean and inspect the vessel’s sewage hold tank.

Project Manager:

Mr. James Tepen Industrial Detachment Supervisor* Office (314) 771-6044 x 2103

Cell (314) 565-8893 Fax (314) 771-6269 *Visits for possible estimates must be scheduled with the Industrial Detachment Supervisor Project Location: USCGC SANGAMON (WLR 65506) Mooring Facility Foot of Washington Street

East Peoria, IL 61601-2039

POC:

MKC Garrett Hodgson or Cutter Representative (309) 694-2319*

*Visits for estimates must be scheduled with POC.

Location Work Hours:

8:00 am – 3:00 pm (All work outside of these hours requires advanced approval from the Project Manager) Item Start Date: 21 Jan 2025 Item Completion Date: 29 Mar 2025 Note:

Contractor shall provide tools and equipment to include water hoses and drain camera Sewage Holding Tank(s), Clean and Inspect – Tender Scope of Work (SOW)

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

1.2. Government-furnished property.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 65 WD 4808-5, Rev 1, Secondary Drainage System (65506) Coast Guard Publications

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2022, General Requirements

Other References

ASTM International (ASTM) D1330, 2010, Standard Specification for Rubber Sheet Gaskets

3. REQUIREMENTS

3.1.5 General.

3.1.1 CIR

None

3.1.2 Tech Rep

Not Applicable

3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

3.1.3.1 Plug all inlet and outlet piping in the tank(s) to prevent contaminants from entering. Use plugs with an attached lanyard, ring or other system that will ensure plugs are not lost in the pipe openings.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences). Known interferences include, but are not limited to the following:

· Pumps

· Piping

3.1.5 Plug log. The Contractor shall keep a written record of all plugs used in tank vents and sewage piping. Keep a separate list for each tank.

3.1.5.1 Verify removal of all plugs after completion of tank cleaning.

3.1.5.2 The plug log shall be available to the Coast Guard Inspector performing his/her closeout tank inspection.

3.2 Operational test - initial. Prior to commencement of work, the Contractor shall witness Coast Guard personnel perform an operational pre-test to demonstrate all tank TLIs' existing operational condition. Submit a CFR.

NOTE

Ship’s Force will operate all shipboard machinery and equipment.

3.3 Confined Space Entry. A confined space entry permit is required to open sewage holding tanks. Contractor shall be responsible for the confined space entry permit from a Certified Marine Chemist.

Marine Chemist of St. Louis

Ryan Ball

30213 Mitchell Creek Rd.

Brighton, IL 62012

(618) 616-7699 rwball709@gmail.com

3.4 Cleaning and inspection requirements. The Contractor shall accomplish the following for the tank(s) listed in paragraph 1.1 (Intent), referring to Coast Guard Drawing 65 WD 4808-2, Rev 1, Secondary Drainage Sys for guidance:

3.4.1 Content removal. Remove and dispose of all contents, fluids, and/or residues in accordance with all applicable Federal, state, and local regulations. The contractor shall provide a sewage vacuum truck to pump contents from the sewage holding tank.

3.4.2 Tank Opening. Contractor shall remove manhole cover(s) being careful not to break bolts or studs and contact the Project Manager for difficult to remove hardware. Contractor shall provide all tools and equipment to remove manhole cover(s).

3.4.3 Cleaning requirements. Clean all tank structure’s interior surfaces free of all foreign materials, sediment, and sludge. Remove all persistent residues, taking care not to damage the 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. Clean all tank vent lines. Remove and clean the eductors and level switches inside of the tank(s). Reinstall the eductors and level switches upon completion of tank cleaning. Use new gaskets and hardware to install/reinstall all removed/disturbed components.

3.4.4 Inspection. In the presence of the USCG Inspector visually inspect all interior surfaces with a Drain inspection camera for foreign materials, sediment, residues and sludge, including, but not limited to bulkheads, floor and overhead plating, structural members, manhole cover surfaces, fasteners and gasket seating surfaces. Submit a CFR

3.5 Tank Closing. USCG Industrial Production Facility New Orleans personnel will close tank after recoating.

3.6 Operational test – post repairs. USCG Industrial Production Facility New Orleans personnel will complete post repair operational test after closing tank.

NOTE

Ship’s Force will operate all shipboard machinery and equipment.

4 QUALITY ASSURANCE

4.1 Certification and Compliance. Contractor shall comply with EPA certifications and provide a copy of current certification to the Coast Guard. In addition, contractor shall comply with all federal, state, and local public safety and environmental protection regulations applicable to the following issues:

· Handling and disposal of spent cleaning solvents and wastes generated during cleaning procedures

· Protection of waterways during cleaning procedures

5. SAFETY

5.1 All persons conducting business with or at the Coast Guard Industrial Production Detachment (IPD) St. Louis Facility and onboard Coast Guard Cutters while moored at this facility are required to meet all applicable safety requirements including weather conditions set forth by the Coast Guard Industrial Facility and the Army Corps of Engineers.

(Rev-0)