DKGV 1161220 Repair Condensate Pipe Pier XRS DRAFT SOW.pdf

DKGV 1161220 Repair NPTU Condensate Pipe Pier X-Ray South XRS (CGH, 1 July 2026)

DRAFT

Statement of Work

DKGV 1161220 Repair NPTU Condensate Pipe Pier X-Ray South

XRS Joint Base Charleston Weapons Station

1 JULY 2026

MISSION IMPACT: Repair and support degraded condensate line under Pier X-Ray South (XSR).

MISSION PARTNERS: NPTU

A. GENERAL: The work to be performed by this task order involves the removal of a non-essential low point drain from a three (3) inch condensate line and the replacement and addition of seismic bracing of the condensate line.

Contractor shall furnish all tools, qualified labor, materials, equipment, supplies, and supervision necessary to replace and support repairs to the condensate line. All work shall be accomplished in accordance with all Federal, State, Local Regulations and the guidelines :

1. International Building Code

2. International Mechanical Code

3. International Plumbing Code

4. American Welding Society (AWS)

5. National Electrical Code (NFPA 70)

6. National Fire Code (NFPA 1)

7. Base Architectural Compatibility Guide

8. Unified Federal Criteria (UFC)

9. Unified Facilities Guide Specifications (UFGS)

B. LOCATION: NPTU, Pier XSR, Joint Base Charleston Weapons Station, Goose Creek, SC.

C. SCOPE OF WORK: The project requirements are included, but are not limited to the following major items of work:

NOTE: In accordance with 29 CFR 1926.1101 (OSHA’s Asbestos Standard for the Construction Industry) Building Owners are required to inform potential contractors bidding for work of the presence, location, type, and amount of asbestos containing building materials (ACBM) that may be impacted by this project scope of work. The following is applicable: NOTE: Asbestos and Lead Surveys are not required.

NPTU CONTRACTOR SPECIAL CONDITIONS: (See Attachment A)

1. The contractor shall be responsible for adhering to the Special Conditions outlined in this document and is expected to review it in its entirety. The CE Project Manager (PM) will assist the contractor in meeting these requirements.

CONDENSATE PIPE DEMO:

DESIGN: No design required, like in kind replacement.

1. Contractor shall plan, coordinate, and adjust their work schedule as necessary to perform tide-dependent activities while remaining within NPTU’s established regular work hours.

2. Contractor shall coordinate with NPTU no later than ten (10) days prior to work being done as NPTU site facility personal will be responsible for isolating and draining the condensate line.

3. Contractor shall coordinate with NPTU site Work Controls Officer (WCO) to test existing heat trace cable and verify proper operation prior to work being done, then lock out, tag out, and verify heat trace power has been removed.

4. Piping and seismic bracing are located below the pier deck and are not accessible from the pier surface.

Contractor shall coordinate with NPTU site (WCO) for access under the pier deck. Contractor will need to provide a boat and/or floating platform to access the work location. Work hours will be adjusted to

NOTE: Refer to Attachment C for 628 Environmental Compliance for work under the pier.

5. Contractor shall provide demolition and disposal of approximately three (3) foot of stainless-steel insulation jacket and pipe insulation to expose the three (3) inch condensate pipe and drain valve to be removed.

6. Contractor shall selectively remove and dispose of one non-essential low point drain valve and cut out approximately one (1) foot of the 3” condensate pipe on both sides of the tee to include removal of the 3/4” pipe, elbow, and flanged valve. Take care not to damage existing heat trace wire.

REMOVE AND REPLACE:

1. Contractor shall remove existing galvanized all-thread pipe supports and clevis hangers in four (4) locations under pier XRS.

NOTE: See attachment B for details.

2. Contractor shall provide and install new 5/8” threaded stainless-steel hanger rods with a 5” embedment depth to include stainless steel channel seismic bracing on the underside of the pier deck. All concrete anchoring for new work shall be secured with Hilti HIT HY 150 MAX-SD adhesive anchoring system or approved equivalent. Pipe hangers shall be MSS SP-58 Type 1 with overhead support sized to encompass insolated pipe. Ensure all new materials (hangers, bolts, fabricated supports, and braces) are 316 stainless-steel.

SEISMIC NEW WORK:

1. Contractor shall provide and install eight (8) new seismic braces in the following configuration, four (4) 1 ¼” pipe size in the longitudinal direction and four (4) 1 ¼” pipe size in the transverse direction. Provide seismic bracing near the location of each existing vertical hanger. Ensure all new materials (hangers, bolts, fabricated supports, and braces) are 316 stainless steel.

NOTE: Refer to attachment B for seismic details.

2. Contractor shall locate existing reinforcement and pre-stressed steel members near drilling areas for new seismic supports prior to drilling, with one of the following methods: ferrous scanner, ground-penetrating radar, or other approved methods (X-ray is not allowed).

3. Contractor shall install all seismic longitudinal and transverse brace brackets using 5/8” stainless steel all-thread or bolts with a 5” embedment depth. All concrete anchoring for new work shall be secured with Hilti HIT HY 150 MAX-SD adhesive anchoring system or approved equivalent.

CONDENSATE PIPE NEW WORK:

1. Contractor shall provide and install approximately three (3) feet of new 3” schedule 80 seamless carbon steel ASTM A106-Grade B to replace the section cut out to remove the low point drain valve. All pipe dimensions and conditions to be field verified by contractor before commencing work.

2. Contractor shall weld new pipe section to existing condensate pipe. All welding shall be done by qualified welders using qualified welding procedures in accordance with American Society of Mechanical Engineers-Boiler and Pressure Vessel Code (ASME BPVC) Section IX. Welders shall be qualified in accordance with American Welding Society (AWS).

3. Contractor shall provide an independent weld inspector to inspect the acceptability of all welds.

4. Contractor shall provide and install protective inorganic silicate zinc coating, PPG Dimetcote 9 VOC or equivalent, shall be installed to the exterior of newly installed pipe to prevent corrosion from the marine environment in accordance with manufacturer’s instructions.

5. Contractor shall conduct a thirty (30) minute hydrostatic test to demonstrate compliance of the newly welded section of condensate pipe and additional time to conduct examinations for leakage at the repaired joint. NPTU representative shall witness the test.

6. Contractor shall either cut and splice or double back excess heat trace wire left from removing the drain valve.

Regardless of means chosen, heat trace cable must remain operational following completion of work in order to maintain continuity of the circuit.

7. Contractor shall coordinate with NPTU site Work Controls Officer (WCO) to test heat trace cable and verify proper operation.

8. Contractor shall provide and install new 3” pipe insulation type T-3 cellular elastomer with a thickness of not less than one (1) inch to cover all condensate pipe exposed from the demo of low point drain valve.

9. Contractor shall provide and install new insulation jacketing type 304 stainless steel with a minimum thickness of 0.010” and shall conform to ASTM A167 or ASTM A240/A240M, and stainless-steel banding with a minimum width of 0.5” to replace all jacketing removed from the demo of the low point drain valve.

GENERAL SITE REQUIREMENTS:

1. Work areas around the project site will be occupied by the using activity during work. Caution must be taken to ensure all safety work practices are adhered to while construction work requirements are performed.

2. All work to be performed during normal working hours (0700-1700), Monday-Friday.

3. Caution must be exercised in all work areas of the facility to avoid physical or cosmetic damage to existing government property. Any damage to government property resulting from construction procedures shall be the responsibility of the contractor.

D. ENVIRONMENTAL: Refer to Division 1 Specification (01 57 19) Temporary Environmental Controls. The Contractor shall comply with all applicable requirement stated in the Toxic Substances Control Act of 1976. All materials used in the performance of this contract shall be applied in strict accordance with manufacturer’s printed label instructions and all applicable standards. The use of Class I ozone depleting substances, asbestos containing materials, and lead paints are strictly prohibited. Contact the 628 Civil Engineer Squadron Environmental Office at (843)-963-1473 for any asbestos or lead paint related questions.

E. WASTE DISPOSAL/RECYCLING: Refer to Division 1 Specification (01 57 19) Temporary Environmental Controls. The contractor shall recycle all recyclable materials generated during demolition. All waste materials generated by all work under this contract shall be handled, transported, stored, and disposed of off base at no additional cost to the government, by the contractor and or sub-contractors, at any time in accordance with all applicable federal, state, or local laws, ordinances, regulations.

F. SUBMITTALS: Refer to Division 1 Specification (01 33 00) Submittal Procedures. See Attachment 15, Submittal Register 4122-R for minimum submittal requirements for this delivery order.

1. Progress/Construction Schedule AF Form 3064

2. Product Data/MSDS’s

3. Manufacturer’s Instructions

4. Activity Hazard Analysis(s)

5. AF Form 66

6. SS Seismic Hardware

7. Insulation and Jacketing

8. Inorganic Silicate Zinc Coating

9. Welder Certifications

10. Hydrostatic Equipment and Reports

11. Close Out Documentation

G. SAFETY: Refer to Division 1 Specification (01 35 26) Governmental Safety Requirements. The Contractor shall comply with all OSHA safety regulations, the latest edition of EM-385-1 and 29 CFR 1910, if discrepancies occur the more stringent requirements shall govern. All applicable submittals for various Definable Features of Work (DFOW’s) required by EM-385-1 shall be submitted prior to commencing work.

H. OUTAGES: Refer to Division 1 Specification (01 35 26) Governmental Safety Requirements. Outages will be coordinated with Government PM.

I. PERMITTING: Refer to the specific permit sections of Division 1.

J. CLOSEOUT DOCUMENTS: Refer to Division 1 Specification (01 33 00) Submittal Procedures.

Warranty (SD-3) Contractor’s As Built/Record Drawings (SD-11) Real Property Records (SD-11) Operation & Maintenance (O&M) Manuals/Data (SD-10)

- End Statement of Work-