B08_Attachment_1_SOW_EROS_Chilled_and_Condenser_Water_Piping.pdf

EROS Data Center

Removal and Replacement of Chilled and Condenser Water Piping

STATEMENT OF WORK

The Department of Interior, USGS/Earth Resources Observation and Science (EROS) Center, Sioux Falls, South Dakota is seeking professional firms to provide construction to remove and replace chilled water piping and condenser water piping which serves the 1996 building addition at EROS. Location is the USGS/EROS Science Center, 47914 252nd Street, Sioux Falls SD 57198.

I. BACKGROUND

A 2018 study of the cooling towers, chillers, condenser water piping, and chilled water piping in the 1996 EROS building addition identified items in extremely poor condition. A design to upgrade the system was completed as a result on 6/12/2020 titled Earth Resources Observation and Science Center Phase 1:

EROS Fluid Coolers Design Services (Attachment 2). The 6/12/2020 as built drawings are included in Attachment 3 along with the mechanical system design criteria (Attachment 4). Due to cost constraints, the design, drawings and mechanical design attachments are provided for reference and basis of design only. Removal and replacement of cooling towers have been completed. The third chiller will not be completed under this contract.

Solicitors may provide clearly defined design variations provided solicitors also clearly demonstrate operational and/or construction cost savings.

II. SCOPE OF WORK

A. Construction Scope/Objectives: The project objectives of the USGS are as follows:

All aspects of the project shall keep the facility offices and computer rooms operational.

Minimal impact to the conditioned spaces may be allowed and as such, project must be completed in phases.

The specifications and drawings provided as Attachments 2–4 are furnished solely as Basis of Design reference documents to illustrate prior design intent and existing conditions. Only the requirements specifically identified in this Statement of Work constitute the contractually binding scope. Any elements shown in the reference documents but not described in this SOW shall not be considered part of the contract. Construction may not have precisely followed the design, so no assumptions should be made on existing site conditions based on the previous recommendations. The specifications have been revised to remove references to the “architect” and clarify that the Contracting Officer Representative (COR) will perform this function.

Removal and replacement of cooling towers have been completed. The third chiller will not be completed under this contract.

• Piping

a. Replace Condenser Water Piping o Install new water piping network from the mechanical room to supply the mechanical equipment. Remove existing water piping.

o Construct the system to utilize condenser water pumps and VFDs accordingly to provide the flow required to the chiller and heat recovery systems.

o Provide adequate taps for future “Pond Heat Rejection” system (tees, valves, and caps.)

b. Replace Chilled Water Piping o Install new water piping network from the mechanical room to supply the mechanical equipment. Remove existing water piping.

o Construct the system to utilize 2-way valves and control the chilled water pumps accordingly to provide the flow required to the chiller and systems.

o System capacity shall be sized to utilize the two 1996 York chillers at maximum capacity simultaneously, approximately 600-ton (field verify.)

c. Replace Heating Water Piping o Develop a design to remove and install new heating water piping branches to the Air Handling Units. Remove pneumatic controls and install modern control solutions. (The main piping loop is in good condition, only the branches, pneumatics, and valves need to be replaced.)

d. Update Controls o Develop a design to remove pneumatic controls in the 1996 Penthouse. Replace with new electric actuators.

o Develop an updated control sequence to satisfy the building conditions with new piping, modulating water flows, rejecting heat to the building when needed, etc.

to save energy.

• The deliverables are generally to include the following per submission:

Submittal Log.

Construction Schedule.

Certified List of Incomplete Items (Punch List) Submittals in accordance with SECTION 017700 - CLOSEOUT PROCEDURES and in coordination with the COR.

2. USGS to provide:

• Attachment 2 USGS EROS Specifications

• Attachment 3 USGS EROS Drawings

• Attachment 4 USGS EROS Mechanical Narrative

III. Construction Schedule

Submit a comprehensive, fully developed, horizontal, Gantt-chart-type, Contractor's construction schedule within 10 days of the Notice to Proceed (NTP).

IV. Other Requirements

a. The contractor shall be responsible for complying with all National, Federal, State and local laws, codes and regulations in connection with the execution of the work.

b. Contractor is responsible for visiting the worksite to verify measurements and to ascertain the nature and location of the work to be performed and the general and local conditions which can affect the work. Failure to do so will not relieve the contractor of their responsibility for estimating properly the difficulty or cost of successfully performing the work. Drawings furnished may not be to scale.

c. Any changes affecting the scope of work shall originate from or be approved by the Contracting Officer.

d. All materials and workmanship shall be subject to the inspection and approval of the Contracting Officer or the COR. All work unsatisfactorily performed shall be promptly corrected and made acceptable to the Government at no additional cost.

e. Final inspection and acceptance shall be performed with the contractor, on site by the

COR upon completion of job performance.

f. Location of Work: EROS Data Center, Sioux Falls, South Dakota

g. Employees. The contractor shall be responsible at all time for the supervision and control of the employees that may be assigned to render services under the contract. Fully qualified work personnel shall be available for work on the date this purchase order begins and shall be maintained throughout the period of performance. The contractor shall make certain that its employees do not disturb papers on or inside desks or cabinets and that they make no use of the telephones or office equipment which have been provided for Government personnel in their defined capacity. At all times, the work under this contract shall be carried out in such a way that there is a minimum of interference with Government activities.

h. Materials. The contractor shall furnish all supplies, materials, and equipment necessary for the performance of the work included in this contract unless otherwise specified.

Materials and supplies to be used shall be commercially available products of reputable manufacturers or suppliers and shall be of a quality to conform with applicable Federal Specifications.

i. Specifications. In any case of discrepancy in the specifications, the matter shall be immediately submitted to the Contracting Officer, without whose decision said discrepancy shall not be adjusted by the Contractor, save only at their own risk and expense. Any changes affecting the scope of the work shall originate from and be approved by the Contracting Officer.

j. Scheduling Contract Work. The contractor shall make necessary arrangements with the Government COR to perform the work and shall arrange and schedule their work so that the minimum amount of interference with Government activities will result.

k. Use of Building Facilities. The contractor may use utility services and toilet facilities of the buildings subject to approval of the Contracting Officer or the COR. The Government shall make all reasonably required amounts of utilities available as specified in the contract.

l. Conditions affecting the work. It will be the responsibility of the contractor to inspect the site, determine the quality of work involved, compare the specifications with the work to be done, and inform themselves as to all conditions, including other work, if any, being performed. Failure to do so will in no way relieve the successful contractor from the necessity of furnishing any materials or performing any work that may be required to carry out the contract in accordance with the true intent and meaning of the specifications without additional cost to the Government. The contractor is responsible for special dust protection in raised floor areas, protection of existing alarm systems, sprinklers, and coordinating with COR and building security when required.

m. Accident Prevention and Fire Hazards. The contractor shall take all necessary precautions to prevent fires or injury to the public, building occupant(s), or damage to property of others during the performance of this contract. For the purpose of this contract, the public or building occupant shall include all persons not employed by the contractor or a subcontractor working under his/her direction. If welding is required, a permit must be obtained from the EROS security office prior to the work.

n. Licenses-Permits. The contractor shall, without additional expense to the Government, be responsible for obtaining any necessary licenses or permits, and for complying with any Federal, State and Municipal laws, codes and regulations in connection with the execution of the work.

o. Facility Access. Prior to commencement, the contractor shall comply with the security clearance requirements in this contract for all management officials, supervisors, employees, and subcontractors (hereinafter referred to as contractor personnel) who will be working on the site or periodically visiting the site.

i. For those contractor personnel who are granted a clearance, USGS will provide the contractor with the necessary building passes or entrance onto the EROS Data Center.

ii. The contractor and COR or his/her designee shall sign each pass issued for the contract. The contractor shall maintain a listing of all passes issued on this contract.

iii. The contractor personnel shall present themselves for the issuance of a photo identification pass when required by the government and as scheduled by the

COR.

iv. The contractor shall ensure that their personnel understand the proper use of the building passes and the following requirements are met at all times.

1. The contactor personnel shall each have a building pass before they begin work.

2. The contractor personnel shall carry their passes with them while performing on site and shall show them upon request. The COR or other security personnel will periodically verify passes of the employees with their personnel identification.

3. Building passes are issued to a specific individual and shall not be used by anyone other than that individual. If one of the contractor personnel uses the pass of another, both shall be removed.

v. The government reserves the right to require the contractor personnel to “sign-in” upon ingress and “sign-out” upon egress to and from the site for safety and security reasons.

vi. All contractor personnel found to be unacceptable will not be allowed to perform any work under this contract. Should contract personnel be found to be unacceptable due to past criminal history, that person will have the right to appeal their adjudication to the Federal Protective Service. However, personnel found to be unacceptable shall not be allowed to work under this contract until final appear ruling has been established, and the Federal Protective Service has changed the unacceptable status to acceptable.

vii. All passes shall be returned to the COR as the management officials, supervisors, employees or subcontractors are dismissed or terminated, and when the contract expires. All passes will contain an expiration date.