Atch 2_SOW Bldg C3 C4 C8 Nat Gas Supply.docx

12639523Q0201, Attachment 2 Statement of Work C3, C4, and C8 Natural Gas Fuel Line Project USDA, Ames, IA 5/22/2023

1.0 General Information:

The USDA National Centers for Animal Health (NCAH) desires to convert C-Row Buildings C3 and C4 from propane to natural gas and to extend the existing natural gas fuel line to Building C8 for future conversion. Project is located on the USDA campus in Ames, IA.

2.0 Scope of Work:

A. The contractor shall provide all materials, equipment, labor and design work to perform the following work located on the USDA NCAH campus in Ames, IA:

1. Install new 1-inch HDPE natural gas fuel lines to Buildings C3 and C4. New fuel lines to be connected and supplied from existing 2-inch HDPE, 30 psig fuel line located south of Buildings C3 and C4.

2. Install new 2-inch HDPE, 30 psig fuel line to Building C8 and complete tie-in to existing 2-inch plastic, 30 psig fuel line at Building C5 location as shown on drawing.

3. Install new regulators and meters for Buildings C3 and C4 and convert existing equipment from Propane to Natural Gas.

B. Project Requirements:

1. Natural Gas piping shall be High Density Polyethylene (HDPE). 1-inch Gas piping shall be buried at a minimum depth of 24 inches. 2-inch gas piping shall be buried at a minimum depth of 36 inches. 12-gauge tracer wire shall be provided for all underground piping.

2. All joints shall be connected using HDPE Electrofusion type couplings. 1-inch piping may be connected to the 2-inch piping using electrofusion HDPE Tap tees.

3. Contractor shall provide manufacturer's standard anodeless risers. Anodeless risers shall be of swaged gas-tight construction with O-ring seals, metal insert, and protective sleeve with 7 to 12 mil thick epoxy coating. Provide riser supports.

4. Install natural gas Regulators and meters at riser locations for Buildings C3 and C4.

a. Install new natural gas regulators before the new meters. Regulators shall be capable of reducing pressure from 30 psig to 2 psig at required flowrate.

b. Natural gas regulators at the riser locations shall provide over pressure protection by use of a full internal relief to prevent downstream pressure from exceeding 5 psig in the event of failure. An example of an acceptable regulator is the Elster American Meter 1813C regulator with 1”x3/4” body and 1/8”x3/16” orifice.

c. Gas flow meter shall be diaphragm type (gas positive displacement meter) designed specifically for natural gas supply metering, and rated for the pressure, temperature, and flow rates of the installation. Meter must have an accuracy of plus or minus 1 percent of actual flow rate. The meter index must include a direct reading mechanical totalizing register and electrical impulse dry contact output for remote monitoring. The electrical impulse dry contact output must not require field adjustment or calibration. An example of an acceptable meter is the American Meter AL-425 Diaphragm Meter with an RVP-FI remote volume pulser.

5. Install Line regulators in C3 and C4 at natural gas supplied equipment to lower pressure from 2 psig to 7”w.c. for equipment use. An example of an acceptable line regulator to install before heating equipment in C3 and C4 is the Maxitrol model 325-5L. Regulator must be vented to outdoor air or equipped with an appropriate Maxitrol Vent Limiting Device.

6. Existing Fuel line from outdoor Meter location to inside heating equipment inside C3 and C4 may be reused.

7. Convert or replace heating equipment in C3 and C4 as listed below from propane to Natural Gas:

a. Convert heater located in C3 attic. Heater is a Reznor model EEDU300-6. Serial number BFG65Q4L04054 manufactured in July of 2006.

b. Replace heater located in C4 attic. Heater is a Reznor model X400E-8. Serial number EBDH65Q4L06467 manufactured in August of 2004. Replace with identical or COR approved alternate with similar heating capacity.

c. Replace 50-gallon Water Heater located in the Mechanical Room of C4. Water heater is a Rheem Fury model 42V50-36PF. Serial number RHLP0109416456 manufactured in January of 2009. Replace with COR approved alternate of similar capacity.

d. Convert Area Heater located in C4 Mechanical Room. Heater is Reznor model UDAP75. Serial number BHJ79Y4L74195X manufactured in October of 2008.

8. Contractor shall verify the operation of all new and converted equipment.

9. All closeout documentation will be provided to the COR. The documentation would include manufacturer's product specifications, testing documentation, warranty information, as-built drawings, and all other pertinent documentation.

10. Any piping or components found to be defective or not functioning properly during the project shall be reported immediately to the COR for authorization to repair or replace those components.

11. All ground shall be repaired to match existing surrounding construction and finish (including the grassy areas). Contractor shall match all USDA rules and regulations as well as IADOT specifications 2601 for application for seeding areas.

a. Grass seed shall consist of following mix (minimum pounds of pure live seed)

1. Annual Rye Grass – 9 lbs per acre.

2. Perennial Rye Grass – 40 lbs per acre

3. Creeping red fescue – 18 lbs per acre

4. Kentucky blue grass – 126 lbs per acre

5. Total = 184 lbs per acre.

b. Starter fertilizer with minimum guaranteed analysis of 6-24-24 or approved alternate fertilizer shall be applied to all areas to be seeded.

c. Remove all rocks and foreign debris from ground prior to seeding grassy areas.

d. Prior to seeding, spread a minimum of 6” of clean, black topsoil on disturbed area and disc or harrow until surface has been thoroughly loosened to a depth of 3-4 inches.

12. Work shall be in compliance with all state and federal guidelines and the latest edition of NFPA-54: National Fuel gas Code.

C. Project Timeline: Contractor shall be given 180 days from the “Notice to Proceed” to complete the project.

3.0 General Requirements

3.1 Work Restrictions & Conditions

A. Site Security Access:

1. Access to the construction site is controlled by a security fence and visitor/contractor check-in/check-out system. All contractor/subcontractor employees shall sign-in and out at the main 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. A current government-issued identification with a picture ID is required for entry.

2. This project construction site is located in the limited access zone.

3. Construction vehicles will be allowed access adjacent to the work; contractor employee’s personal vehicles shall be parked in the facility parking lots.

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

5. Work shall be confined to the areas identified on the Drawings. Unless accompanied by a NCAH/USDA employee, the Contractor, subcontractors, 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.

6. 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.

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

B. Work Hours: Regular work hours for the site are 7:30 a.m. to 5 p.m., Monday through Friday, excluding Government holidays. Note: work that requires a heating system shutdown may only be performed when average ambient temperatures are above 45°F.

C. Work Outside Regular Work Hours: Work scheduled outside regular work hours including late hours, Saturdays, Sundays, and Government holidays requires Contracting Officer’s Representative (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.

3.2 Quality Control Requirements

A. The Contractor shall maintain a Construction Quality Control (CQC) Plan for the project that is generally in conformance with the Corp of Engineers (COE) Quality Control process.

B. The Contractor’s CQC Plan manager shall be trained in the COE system and shall maintain the project CQC Plan records and documents.

3.3 Regulatory Requirements

A. 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. National Fire Protection Association (NFPA)

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

b. NFPA 1 – Uniform Fire Code

c. NFPA 5000 – Building Construction and Safety Code

2. Underwriters Laboratories, Inc. (UL)

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

4. The Uniform Federal Accessibility Standards (UFAS)

5. Occupational Safety and Health Administration (OSHA)

B. All work shall be completed in accordance with the Iowa Statewide Urban Design and Specifications (SUDAS) most recent edition. The SUDAS Standard Specifications are modified by the following additions. These are supplemental specifications and they shall prevail over those published in the SUDAS Standard Specifications Manual.

C. Underground Facilities:

1. Shown or Indicated: The information and data shown or indicated in the Contract Documents with respect to existing Underground Facilities at or contiguous to the Site is based on information and data furnished to Owner by the Owners of such underground facilities, including Owner, or by others. Unless it is otherwise expressly provided in the Supplementary Conditions:

i. Owner shall not be responsible for the accuracy or completeness of any such information or data provided by others; and

ii. The cost of all of the following will be included in the Contract Price, and Contractor shall have full responsibility for:

1. Reviewing and checking all such information and data.

2. Locating all Underground Facilities shown or indicated in the Contract Documents.

3. Coordination of the Work with the Owners of such Underground Facilities, including Owner, during construction.

4. The safety and protection of all such underground facilities and repairing any damage thereto resulting from the Work.

2. Not Shown or Indicated: If an Underground Facility is uncovered or revealed at or contiguous to the Site which was not shown or indicated, or not shown or indicated with reasonable accuracy in the Contract Documents, Contractor shall, promptly after becoming aware thereof and before further disturbing conditions affected thereby or performing any Work in connection therewith (except in an emergency), identify the owner of such Underground Facility and give written notice to that owner and to the COR. COR will promptly review the Underground Facility and determine the extent, if any, to which a change is required in the Contract Documents to reflect and document the consequences of the existence or location of the Underground Facility. During such time, Contractor shall be responsible for the safety and protection of such Underground Facility. If Contractor concludes that a change in the Contract Documents is required, a Work Change Directive or a Change Order will be issued to the Contracting Officer to reflect and document such consequences. An equitable adjustment shall be made in the Contract Price or Contract Times, or both, to the extent that they are attributable to the existence or location of any Underground Facility that was not shown or indicated or not shown or indicated with reasonable accuracy in the Contract Documents and that Contractor did not know of and could not reasonably have been expected to be aware of or to have anticipated. If Owner and Contractor are unable to agree on entitlement to or on the amount or extent, if any, of any such adjustment in Contract Price or Contract Times, Owner or Contractor may make a Claim.

3.4 Temporary Facilities

A. Utilities: The existing USDA utilities at the site may be used by the Contractor for completion of the contract work at no cost to the Contractor. The Contractor shall be responsible for making and removing any temporary utility connections.

B. 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.

C. Toilet Facilities: Contractor may use USDA NCAH Toilet Facilities D. Dumpster/Roll-off: The Contractor may locate a dumpster/roll-off to the site. Location and services shall be coordinated with the COR.

3.5 Submittal & Shop Drawings Procedures

A. Documents will be submitted in PDF, scanned or created in documents that can be easily read when printed on 8-1/2 x 11 or 11 x 17 sheets.

B. Submit manufacturer’s details and specifications for:

a. All fabric material used for re-covering the hoop structure

b. Overhead Doors

c. Service Doors 3.5

3.6 Close-Out Submittals

Contractor shall coordinate progress inspections with the COR and before final payment application shall request a final inspection. The COR will complete a punch-list and/or document to the Contracting Officer that the work is complete in accordance with the project requirements before final payment is made.

3.7 Special Provisions

A. The contractor shall submit a copy of the contractor’s safety policy for review by COR at least 10 business days prior to starting work on site.

B. The Contractor shall confine all operations to within the work limits of the project and exercise special care to maintain natural surroundings undamaged. All surfaces that have been altered for the installation shall be refinished to match original condition by skilled personnel of the trades involved at no additional expense to the Government.

C. The contractor shall coordinate all work with the Contracting Officer's Representative. Natural Gas outage for Buildings C3 and C4 shall be scheduled a minimum of 5 days in advance.

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

a. 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.

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

E. No building structural members shall be cut or altered without prior approval of the Contracting Officer's Representative.

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

G. 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.

H. The contractor shall move all materials and equipment, including ladders and scaffolding from the site at the completion of each day's operation unless otherwise approved by the Contracting Officer's Representative.

I. The contractor shall provide proper safety equipment to workmen and ensure a safe environment for employees and the public always. The contractor shall work to ensure free, unobstructed, and safe access to and about the work area.

J. The contractor shall install the underground HDPE natural-gas piping in accordance with the latest editions of ASTM D 2774: Standard Practice for Underground Installation of Thermoplastic Pressure Piping and ASTM F1688: Standard Guide for Construction Procedures for Buried Plastic Pipe.

3.8 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 the COR one signed & dated copy of all warranties for products and equipment installed on the project. An electronic (scanned) copy of the Warranty Binder in a PDF file shall be submitted with the final close-out documentation.

C. Operation & Maintenance Manuals: Contractor shall provide a printed copy of all Operation & Maintenance documentation provided with the equipment and systems installed in the project and place the manuals in an organized binder. The contractor shall also provide a PDF version of the Manuals to be submitted with the close-out documentation.

D. A one-year warranty shall be provided for faulty workmanship and material. The warranty shall start at the completion of the project.

E. The contractor shall provide technical specifications and product information along with the cost proposal.

4.0 Deliverables / Schedule