Statement of Work.pdf

Statement of Work

PPW Vaults 101A and PPW Vault 104 Internal Upgrades

USDA, Ames, IA

3/13/25

Background:

The Pumped Pretreated Waste system (PPW) on the USDA campus in Ames, Iowa, carries waste from various buildings to the campus wastewater treatment plant. At locations along the PPW line, there are concrete vaults that house isolation valves, drain ports, decontamination ports, vent piping, and leak detection components. The existing piping that is inside the vaults is carbon steel with stainless-steel valves. Due to groundwater entering the vault over the years, the valves and piping have corroded.

Project Requirements. The scope of this project is for the contractor to replace all the carbon steel piping components within two different vaults (PPW Vault 101A, PPW Vault 104) with stainless steel components; replace all existing valves with new stainless-steel, full-port ball valves, insulate all piping in the vaults, and seal the PPW concrete vaults to prevent further condensation and groundwater issues inside the vaults. The Contractor shall provide all labor, piping, fittings, equipment, mounts, accessories, hardware, transportation, storage, and disposal of existing components as required to perform all work in accordance with these specifications. Piping sections shall be replaced at separate scheduled times/dates to alleviate the disruption of the wastewater processes and daily operations and to reduce the shutdown timeframe. Refer to drawings for details. The contractor shall:

1. Work within the constraints of the facility’s ability to schedule downtime. Contractor shall replace only one section at a time to alleviate shutdown timeframe. The replacement of each section shall occur on separate days.

2. Replace all waste line piping and associated components inside PPW Vault 101A and PPW Vault 104 with stainless steel piping and components. See drawings for details.

3. Insulate all new stainless-steel piping once hydrostatic testing is completed and passed in both vaults.

4. Correct the slope of the concrete floor of PPW Vault 101A and PPW Vault 104 via grouting material or concrete to allow water to flow to the sump discharge and prevent pooling of water inside the vault.

5. Seal the concrete walls, ceilings, and corrected floors of PPW Vault 101A and PPW Vault 104.

6. Ensure PPW Vault 101A and PPW Vault 104 are clean and free of all debris before project is completed.

1) Work within the constraints of the facility’s ability to schedule downtime.

a. This work will impact lab research that is required to follow a very precise schedule. All work must be coordinated in advance and schedules must be maintained throughout the project.

b. Each section of pipe may only be down for a maximum of 8 hours, on separate days.

The 8-hour timeframe shall include the three (3) hours required for the USDA to complete the decontamination process. The contractor will then have five (5) hours to complete their repair. An extension of decontamination time will not reduce the time frame allowed for the contractor. However, the contractor may use any time saved during the decontamination process, as long as the shutdown does not extend beyond the eight hours.

c. Contractor shall only replace one section at a time to reduce shutdown timeframe.

d. Each section shall be scheduled separately and on different days.

e. The dates of the scheduled shutdowns must be coordinated and evaluated regularly, beginning at the kickoff meeting.

i. The wastewater restrictions and shutdown timeframes included in the contractor’s schedule will include the time (3 hours) needed for the USDA staff to properly decontaminate each section.

ii. Upon first scheduled submission, the proposed shutdown dates must be included. The USDA and contractor will then evaluate these dates mutually and determine an appropriate time.

iii. An updated schedule will then be provided. Deviations from the planned shutdowns will not be acceptable. An inability to meet the mutually agreed upon dates provided in the schedule may result in a month’s long delay for project completion for rescheduling.

2) Replace all waste line components inside PPW Vaults 101A and 104 with stainless steel components.

a. Coordinate all wastewater restrictions and shutdowns with the Contracting Officer’s Representative (COR) before beginning any work.

b. Schedule piping section replacements with COR as described in line item 1.

c. Decontamination of the piping sections will be completed by USDA staff prior to any replacement work being performed by the contractor.

d. Replacement of waste components shall match existing configuration. Note: Waste piping inside the vault may not line up with the other side squarely. Piping enters the concrete vault at different angles and elevations. Contractor is highly encouraged to visit the site for exact measurements and angles.

e. Prefabrication of spools by the Contractor shall be used in this replacement to reduce the length of water restrictions/outages. Slip flanges are allowed.

f. All joints shall be welded except where valves and flanges are connected.

g. Prefabricated spools shall undergo hydrostatic testing by the Contractor at 90psi for 1 hour without leaks prior to installation into the waste line.

h. Prefabricated spools shall be welded per specifications attached to this SOW. Sections are indicated on the drawings.

i. Verify all components and sections will fit properly before installation.

j. Any damage to the existing Fiberglass Reinforced piping shall be repaired/replaced

IMMEDIATELY by the Contractor at no extra cost to the Government.

k. All hardware used to connect all piping components and valves together shall be stainless steel.

3) Insulate new stainless-steel piping.

a. Protect and cover all valves, leak detection equipment, pit floats, bolts, etc. to prevent overspray.

b. Once new stainless-steel piping is installed and has passed the hydrostatic testing, apply the recommended primer product per the manufacturer’s instructions.

c. Once primer has cured properly, apply recommended insulating material per manufacturer's instructions.

d. Once insulating material has cured properly, apply the preferred top coating material per manufacturer's instructions.

e. Ensure all valving is operational and free of any material that was used inside the vault.

All threaded bolts used to connect piping sections shall be free from any of the products used to seal concrete floor, walls, and ceiling and to insulate piping.

4) Correct the slope of the floor of PPW Vault 101A and PPW Vault 104.

a. Concrete floor of PPW Vault 101A and PPW Vault 104 shall be thoroughly cleaned and prepared in accordance with floor sloping material manufacturer’s recommendations before applying sloping material.

b. Revise the slope of the concrete floors to positively affect drainage to the sump pits with no ponding or pooling in the vaults.

c. Seal the floors after the sloping is completed using the same product used on walls and ceilings.

5) Seal the concrete walls, floors, and ceilings of PPW Vaults 101A and PPW Vault 104.

a. New stainless-steel piping sections shall be installed BEFORE any sealing work is performed.

b. Concrete sealant shall be applied to the ceilings and all 4 walls of both PPW Vaults 101A and PPW Vault 104.

c. All required preparation to ensure sealant is effective is the responsibility of the contractor. This may include, but is not limited to, patches, spot repairs, and material enhancements at the intersection of the ceiling and wall.

d. Follow all manufacturer’s instructions for application of product including all preparation instructions.

e. Sealant material shall not be applied to piping and valving to avoid any issues with piping insulation materials, but the Contractor shall ensure complete coverage. Floor shall be sealed after the sloping material is installed and has cured properly per manufacturer’s instructions.

6) Ensure PPW Vault 101A and PPW Vault 104 are clean and free of all debris.

a. Contractor is responsible for disposing of all old piping, hardware, flanges, spools, etc.

removed from both PPW Vault 101A and PPW Vault 104. This includes all materials used in the application of sealants and coatings.

b. Remove all construction debris and thoroughly clean both concrete vaults entirely before project is completed.

c. Ensure that all valves operate as designed after the application of the insulation material.

Preferred Products:

Preferred Product Manufacturer of coating for walls, ceilings, and floors.

A. Preferred wall, floor and ceiling coating shall be Series 66 Epoxoline™ by Tnemec or an approved equivalent.

B. Preferred floor sloping material shall be Epoxytec Mortarec-Ceramico™ by Tnemec or an approved equivalent.

C. Any substitutions shall be equal to or greater than the preferred Tnemec product and will need to be approved by the COR prior to ordering of the material.

See “Rehabilitation and Lining for Concrete Wastewater Structures with Ultra-high Build Structural Epoxy” specification attached to this SOW.

Preferred Product Manufacturer for insulating of stainless-steel piping.

A. Preferred primer shall be Series 1224 Epoxoline™ WB by Tnemec or approved equivalent.

B. Preferred insulating material shall be Series 971 Aerolon™ Acrylic Insulating Coating

System by Tnemec or approved equivalent.

C. Preferred top coating shall be Series 1094 Endura-Shield™ by Tnemec or approved equivalent. Note: Substituted material must be able to withstand the decontamination solution used by the USDA staff inside the PPW vaults.

D. Any substitutions shall be equal to or greater than the preferred Tnemec product and will need to be approved by the COR prior to ordering of the material.

See “Product Guide Specification for Fluid-Applied Insulation Coating” specification attached to this SOW.

Project Specifications and Preferred Product Data Sheets for each application process are attached separately to this SOW.

General Requirements

Work Restrictions & Conditions

a. The finished product and all of its components shall provide a complete operational and functional system per this Scope of Work and the manufacturer’s specifications.

b. Anything mentioned in the Scope of Work and not shown on the drawings or shown on the drawings and not mentioned in the Scope of Work, shall be of like effect as if shown or mentioned in both.

c. The Contractor shall site verify any and all dimensions and shall carefully examine the project site and shall make all necessary investigations to become thoroughly aware of the existing conditions and all difficulties involved in the completion of the work in accordance with the contract documents prior to the submission of bid.

d. The completed installation shall comply with all applicable provisions of the Manufacturers Requirements, and the SOW (Drawings and Specifications), enclosed and/or attached.

e. All work will be performed by qualified personnel as defined by OSHA and as applicable per manufacturer’s specifications.

f. Contractor shall verify all equipment is operational and ensure that contractor’s quality control inspections and corrections have been accomplished before calling for the final inspection.

Site Security Access

a. Beginning May 7th, 2025, a REAL ID compliant driver’s license will be required for entry onto any federal facility. Anyone without a REAL ID compliant driver’s license will be denied entry into the NCAH facility. Access to the construction site is controlled by a security fence and visitor/contractor check-in/check-out system. All contractor/sub-contractor employees shall sign in and out at the main site entrance gate and wear a contractor/visitor identification badge at all times while on the site. The ID badges will be turned in at the end of the workday.

b. All visitors must be pre-registered prior to coming onto campus. It is the responsibility of the contractor to ensure that the COR is notified in the appropriate timeframe of any personnel that are performing work onsite and dates that work will be performed.

c. Contractor’s vehicles shall be parked in the gravel drive around the cooling towers for work in PPW Vault 101A or parked in the building 20 parking spaces while working on PPW Vault

104. All vehicles and equipment must not impede traffic or affect normal daily USDA operations. Parking areas will be designated by the COR prior to commencement of work.

Vehicle badges shall be displayed at all times while the contractor is on site.

d. The Contractor shall use only the service roads and access routes approved by the Contracting Officer’s Representative.

e. Work shall be confined to the areas identified on the Drawings. Unless accompanied by a NCAH/USDA employee, the Contractor, sub-contractors, and their employees shall not enter buildings or facilities not specifically part of this project. Reasons included, but are not limited to, disease control and health requirements.

f. Additional security requirements may be imposed when the Federal Government raises the Homeland Security Alert Level. Additional directions will be provided if the situation occurs.

g. Failure to comply with access requirements shall be adequate grounds for removal of the Contractor/sub-contractor employees from the site and barring further site access to individuals.

Normal Work Hours

a. Construction work hours for the site are 7:00AM to 3:30PM, Monday through Friday, excluding Government holidays. Requests for exceptions to this schedule shall be made in writing forty-eight (48) hours in advance and approved by the Contracting Officer's Representative.

b. The piping section replacements shall occur at a scheduled date/time to be determined by facility needs and will be coordinated by the COR, facility staff and the contractor.

c. The application of the coatings for the walls, floors, and ceilings, along with the piping insulation shall be performed anytime between the hours listed above. New stainless-steel piping sections shall be installed BEFORE any sealing work is performed.

Work Outside Normal Work Hours

a. Any other work scheduled outside regular work hours including late hours, Saturdays, Sundays, and Government holidays requires the Contracting Officer’s Representative’s (COR) approval in advance. Make application to the COR at least 5 calendar days prior to such work to allow arrangements to be made by the Government for access to the work area and inspection & monitoring arrangements. Requests shall include the exact dates, hours, location, and purpose of the exception. If approved, the COR will coordinate access with the site security office.

b. Construct work in such a manner as to accommodate Owner’s use of premises during construction period. Coordinate construction schedule and operations with Contracting Officer’s Representative (COR).

c. Contractor shall coordinate use of premises under direction of the COR. Contractor shall confine construction equipment, storage of materials and equipment and operations of workers to areas permitted by law, ordinances, permits, or requirements of Contract Documents, and shall not unreasonably encumber premises with construction equipment or other material or equipment.

Contractor shall:

� Assume full responsibility for protection and safekeeping of items stored on site.

� Move any stored items, under Contractor’s control, which interfere with operations of Owner or separate contractor.

� Obtain and pay for use of additional storage or Work areas needed for operations.

� Transport all materials needed to the site. No deliveries shall be made to the USDA warehouses, and the USDA shall refuse any deliveries made to the USDA warehouses that are for this project.

Use of Premises

a. Do not disturb portions of the site beyond areas in which the work is approved. If land is disturbed due to stage or other reasons, the contractor shall return the condition back to pre-construction condition or better at no cost to the government.

b. Keep driveways, entrances, walkways, and doorways serving premises clear and available to the Government, employees, visitors, and emergency vehicles at all times. Do not use these areas for parking or storage of materials.

c. The contractor shall provide a list of all staff employees that will be working on the project to the Contracting Officer’s Representative (COR) a minimum of five days in advance.

Adherence to Security Policies and Procedures

a. The Contractor shall adhere to all Site, APHIS and USDA security policies and procedures including Code of Federal Regulations Requirements, Standard Operating Procedures, Security Directives, Security Procedures, General Orders, Post Orders and any applicable Government Policies and Procedures.

b. Failure to adhere to or violation of any above listed requirements, procedures, directives, orders and/or policies may result in criminal prosecution or contractor representative or contractor employee (violator) removal.

Intent of Contract Drawings

a. Government provided drawings, henceforth referred to as “Contract Drawings”, do not attempt to show complete details of construction that may affect installation. Government provided diagrams of proposed systems are for reference only and do not necessarily show physical arrangement of all equipment and/or maximum number of devices. Minimum system requirements are shown.

b. Devices are shown diagrammatically only. System layout does not necessarily show maximum number of system components and should not be used for obtaining quantities for linear runs of conduits and wires. The contractor shall provide all conduits and wire wherever needed to complete installation of specific equipment required and provided by the Contractor.

c. Locations of existing and concept devices are approximate and may be distorted for clarity in representation.

Regulatory Requirements

The equipment materials, installation, workmanship, and operation shall conform to the most stringent applicable requirements of the most recent editions of the associated publications, in the below section and in the attached specifications unless otherwise noted:

1. American Concrete Institute, (ACI)

a. ACI 301 – Specifications for Structural Concrete

2. ASTM International, (ASTM)

a. ASTM C 868 – Standard Test Method for Chemical Resistance of Protective Linings

b. ASTM C 1583/1583M – Standard Test Method for Tensile Strength of Concrete

Surfaces and the Bond Strength or Tensile Strength of Concrete Repair and Overlay Materials by Direct Tension (Pull-off Method)

c. ASTM D 4060 – Standard Test Method for Abrasion Resistance of Organic Linings by the Taber Abraser

d. ASTM D 4414 – Standard Practice for Measurement of Wet Film Thickness by Notch Gages

3. International Concrete Repair Institute, (ICRI)

a. Guideline No. 310.1R – Guide for Surface Preparation for the Repair of Deteriorated

Concrete Resulting from Reinforcing Steel Corrosion

b. Guideline No. 310.2 – Selecting and Specifying Concrete Surface Preparation for

Sealer, Linings, and Polymer Overlays

4. Profiles Using Replica Putty

a. International Concrete Repair Institute, (ICRI)

b. Guideline No. 310.1R – Guide for Surface Preparation for the Repair of Deteriorated

Concrete Resulting from Reinforcing Steel Corrosion

c. Guideline No. 310.2 – Selecting and Specifying Concrete Surface Preparation for

Sealer, Linings, and Polymer Overlays

5. NACE International, (NACE)

a. NACE SP0188 – Standard Practice for Discontinuity (Holiday) Testing of Protective Linings

b. NACE No. 6/SSPC-SP13 – Surface Preparation of Concrete

6. Occupational Safety and health Administration, (OSHA)

a. Safety and health Standards (29 CFR 1910/1926)

7. SSPC: The Society for Protective Coatings, (SSPC)

a. SSPC-SP13/NACE No. 6 – Surface Preparation of Concrete

b. SSPC-Guide 12 – Guide for Illumination of Industrial Painting Projects

8. National Fire Protection Association (NFPA)

9. NFPA 101 – Safety to Life from Fire in Buildings and Structures.

10. NFPA 1 – Uniform Fire Code

11. NFPA 5000 – Building Construction and Safety Code

12. Underwriters Laboratories, Inc. (U.L.)

13. Appropriate U.L. Standards

14. State and Local Building Codes as adopted by the Authority Having Jurisdiction (AHJ).

15. The Uniform Federal Accessibility Standards (UFAS)

16. Equipment Manufacturer Printed Instructions

Coordination

a. The contractor shall coordinate all work with the Contracting Officer's Representative.

b. The contractor shall submit an installation schedule for review and approval by the

Contracting Officer's Representative within ten (10) days of task order award.

c. The prime contractor shall be solely responsible for coordinating work with all sub-contractors.

Special Provisions

a. All surfaces that have been altered for the installation of the new stainless-steel piping and coatings shall be refinished to match original condition by skilled personnel of the trades involved at no additional expense to the Government.

b. Finished surfaces of existing facilities that are affected, marred, scratched, or damaged by the contractor shall be refinished to match original condition.

c. Patching material shall be of the same type, style, and thickness, and shall be finished to match existing adjacent surface construction in color and texture.

d. Patching material, paint color, paint material and paint application methods shall be approved in advance by the Contracting Officer’s Representative.

e. Any damage resulting from contractor's operation shall be brought to the attention of the Contracting Officer's Representative immediately.

f. The contractor shall take all necessary and reasonable measures to keep the work site clean of trash and debris. Work areas shall be cleaned immediately as work in that area is completed, and before moving to a new work site. Place all trash and debris in OSHA approved containers, remove, and dispose of trash off site daily.

g. The contractor shall secure all materials, and equipment, including ladders and scaffolding at the site at the completion of each day's operation.

h. The contractor shall provide proper safety equipment to workmen and ensure a safe environment for employees and the general public at all times. The contractor shall work to ensure free, unobstructed, and safe access to and about the work area.

i. No work shall be performed in these vaults if the outdoor temperature is below 45 degrees F. to allow for proper coating application processes and for safe and effective decontamination procedures by the USDA staff.

Temporary Facilities

Utilities: The Contractor will need to provide and utilize a generator for any power needs for this work.

There are no nearby electrical services. Contractor shall be allowed to use water services on site.

Contractor will need to provide tank or suitable container to transport water to project site.

Telephones: The Contractor shall equip all his foremen and work leaders with cell phones as necessary to coordinate the work effort. The Government will not provide any phone service to the project.

Toilet Facilities: The Contractor will be permitted to use the toilet facilities located inside the Utility Plant, Building 154.

Construction Material Storage Trailer: The Contractor may locate a construction material storage trailer to the site. Location shall be coordinated with the COR prior to delivery of any materials and/or construction beginning on site.

Confined Space Program

a. The Contractor and/or subcontractor employees who will be entering Confined Spaces shall be adequately trained and equipped for access and extraction. The Contractor shall provide all ventilation equipment, air quality monitoring, harnesses, and other safety equipment as appropriate for OSHA compliance. The Contractor’s Confined Space program shall substantially conform to the NCAH plan.

b. The Contractor shall submit a written copy of their plan(s) for acceptance by the COR prior to entry into any confined spaces.

c. The Contractor shall provide copies of entry logs and monitoring to the Owner’s Representative at any time requested during the project effort.

Lock-out/Tag-out Program:

a. The Contractor and/or sub-contractor employees who will be working on the job will apply a lockout/tagout (LOTO) process to control dangerous energy sources. The Contractor/sub-contractor shall have a LOTO program established and use Contractor LOTO locks, tags, and procedures.

b. The Contractor/sub-contractor shall review their LOTO program with NCAH F.E.U. personnel to coordinate LOTO programs before implementing LOTO.

Submittal & Shop Drawings Procedures

Submittal Register:

a. At the beginning of the project, the Contractor shall provide a Submittal Register identifying all the items called out in the Specifications for submittal to the COR for approval. The Contractor shall update and maintain the Submittal Register to show the current status of all required submittals.

Submittal Requirements

Format:

a. There is no formal submittal transmittal or format for this project other than the documents shall be submitted as PDF files, scanned, or created in documents that can be easily read when printed on 11x17 sheets.

b. Exceptions for larger sheet sizes will be considered by the COR. Failure of the Contractor to provide legible submittals will be adequate grounds for rejection.

Identification:

a. Submittals shall be labeled and marked for this project. The identification shall include Contractor/sub-contractor’s name, date of submittal, description of item, specification section, and details on product data that are marked clearly for this project.

Submittal Procedures:

a. All submittals will be posted in PDF by the Contractor and sent to the USDA for review. This same submittal process will be used for RFIs, Change Bulletins, etc.

Approved Submittals:

a. The approval/acceptance of submittals is not to be construed as a complete check.

Approval or acceptance will not relieve the Contractor of the responsibility for any error which may exist.

Other Submittal items for this project:

1. Prefabricated spools drawings

2. 2-inch stainless steel valves

3. 2-inch stainless steel piping

4. 4-inch stainless steel valves

5. 4-inch stainless steel piping

6. Stainless steel bolts, nuts, washers

See section 1.3 “Submittals” of attached specification labeled “ Rehabilitation and Lining for Concrete Wastewater Structures with Ultra-high Build Structural Epoxy” for details of Epoxy sealants and mortar.

Warranty Documentation

a. Warranty List: Provide a warranty summary sheet in spreadsheet format with all the warranties listed by section, description, supplier, warranty contact, start date, end date.

Provide electronic copy to the COR and place printed copy in the front of the Warranty Binder.

b. Warranty Copies in Binder: Provide one signed & dated copy of all warranties for the equipment and products installed on the project. The Warranty binder shall be divided by Specification Section and shall be provided to the COR. An electronic (scanned) copy of the Warranty Binder in a PDF file shall be submitted with the final close-out documentation.

Warranty Items:

1. Stainless Steel Valves, piping, and components

2. See section 1.7 of attached specification for warranty details of Epoxy sealants and mortar.

Operation & Maintenance Manuals:

a. Contractor shall provide a printed copy of all Operation & Maintenance documentation provided with the new stainless-steel valving installed in the project and place the manuals in an organized binder.

b. The O&M Manuals shall be organized by specification section and shall have an index at the front of the binder.

c. The Contractor shall also provide a PDF version of the Manuals to be submitted with the close-out documentation.

Record Drawings

Redline Specifications:

a. During the construction period the Contractor shall keep an updated & marked-up or “redline” copy of the project specifications on the jobsite.

b. The redline set shall include notes on changes, RFI responses, and other field notes.

c. At the end of the project the Contractor shall electronically scan the redline specifications and provide an electronic copy in PDF and AutoCAD to the Owner along with the close-out documentation.

Redline Drawings:

a. During the construction period the Contractor shall keep an updated “redline” or “conformed” copy of the project drawings on the jobsite.

b. The redline set shall include notes on changes, RFI responses, and other field notes.

c. At the end of the project the Contractor shall electronically scan the redline drawings at full-size and in color and provide an electronic copy in PDF to the Owner along with the close-out documentation.

END OF SECTION