Replace B98 and B88 Boiler and Sump Pumps STATEMENT OF WORK V4.docx

STATEMENT OF WORK

Replace Building 98 and 88 Boiler and Sump Pumps

PROJECT #: 612A4-27-012

VA NORTHERN CALIFORNIA HEALTH CARE SYSTEM

MCCLELLAN PARK, CALIFORNIA

1. PROJECT PURPOSE AND INTENT

1.1. The project is located at McClellan VA Campus, located at 5401 Arnold Ave and 5342 Dudley Blvd, McClellan Park, CA 95652.

1.2. The purpose of this project is to decommission, remove, and replace the heating and domestic hot water infrastructure at Buildings 88 and 98 at the McClellan VA Clinic. The sump pumps in Building 98 must be replaced also.

1.3. The scope of this project includes demolition, installation, programming, testing, adjusting and balancing, commissioning, training, and turnover documentation for the complete replacement of the heating hot water boilers, domestic water heaters, associated pumps.

1.4. The Contractor must provide and furnish all labor, materials, tools, equipment, testing, analysis, supervision, and administration for the construction phase of this contract.

1.5. The period of performance must be 365 calendar days from issuance of the notice to proceed.

1.6. Building 88 is approximately 8,000 square feet and is currently used as a dental clinic. Building 98 is approximately 71,000 square feet and is currently used as an outpatient clinic. Both buildings will remain occupied and in clinical operation for the duration of this contract. The Contractor must ensure the hot water infrastructure is not disrupted.

1.7. Attachments 18.1 and 18.2 are the construction documents for the Building 88 work. The Building 98 work is not covered by drawings or specifications and must be replaced by the Contractor in accordance with Section 3. Attachment 18.3 is boiler flue detail for Building 98. Where the attachments and this Statement of Work differ, the Contractor must request a written determination from the VA Contracting Officer before proceeding with the affected work.

2. PROJECT OBJECTIVES

2.1. Building 88

· Replace the existing boilers and associated pumps due to age and end-of-life. Consolidate the existing preheat and reheat systems into a single hydronic hot water system to simplify operation, maintenance, and controls.

· Replace the existing domestic hot water heaters and recirculation pumps with new equipment;

· Replace corroded copper piping and associated accessories as specified by Attachments 18.1 and 18.2;

· Replace the thermostatic mixing valve assembly and relocate it from its current elevated location to an accessible floor-level installation to improve maintenance access and operational safety;

· Replace the two existing water softeners to improve long-term system reliability and maintain water quality for the new domestic hot water equipment;

· Integrate the new boiler, domestic water heater, pump, and thermostatic mixing valve controls into the existing campus Building Automation System (BAS);

· Modify existing concrete housekeeping pads and install new reinforced concrete equipment pads as required;

· Structural and weatherproofing modifications to the building envelope required to route new intake and flue piping;

· Seismic anchorage and restraint of all new equipment and piping.

2.2. Building 98

· Replace the existing boilers due to age and end-of-life considerations.

· Replace in kind the existing sump pumps due to age and end-of-life considerations.

· Replace the existing domestic hot water heater and recirculation pump with new equipment;

· Replace the thermostatic mixing valve assembly;

· Integrate the new boiler, domestic water heater, pump, and thermostatic mixing valve controls into the existing campus Building Automation System (BAS);

· Modify existing concrete housekeeping pads and install new reinforced concrete equipment pads as required;

· Structural and weatherproofing modifications to the building envelope required to route flue piping; installation of new flue in accordance with provided flue detail;

· Seismic anchorage and restraint of all new equipment and piping.

2.3. Maintain heating hot water and domestic hot water service to both occupied buildings throughout construction.

3. CONTRACTOR RESPONSIBILITY

3.1. The Building 88 work is specified by Attachments 18.1 and 18.2 and must be constructed as shown and specified, except as modified by this Statement of Work.

3.2. The Building 98 work is not covered by the attached construction documents.

· The complete Building 98 replacement scope, including equipment selection and sizing;

· The controls integration strategy and the sequences of operation.

· Modify existing concrete housekeeping pads and install new reinforced concrete equipment pads as required;

· Structural and weatherproofing modifications to the building envelope required to route new intake and flue piping or to transport heavy equipment into the facility;

· Seismic anchorage and restraint of all new equipment and piping;

· The sump pump replacement design.

3.3. The Contractor must submit for VA review and approval, before any fabrication, procurement, or installation of the affected work:

· A complete submittal for the Building 98 scope, including equipment selections and manufacturer data, the heating and domestic hot water load basis and supporting calculations, and control sequences.

· Seismic anchorage and restraint calculations and details for all new equipment and piping in both buildings.

· The controls integration.

3.4. The Contractor must field-verify:

· The existing campus BAS platform, vendor, and network architecture;

· All existing circuit breakers, panels, and electrical distribution conductors scheduled to remain are fully compatible with the new equipment nameplate Minimum Circuit Ampacity (MCA) and Maximum Overcurrent Protection (MOP) ratings;

· The existing equipment served, capacities, connection points, and clearances in both mechanical rooms.

3.5. The Contractor must notify the VA COR in writing of any discrepancies between the contract documents and actual field conditions before beginning any affected work.

4. PHASING, CONTINUITY OF SERVICE, AND UTILITY SHUTDOWNS

4.1. Buildings 88 and 98 are occupied outpatient clinics and must remain in clinical operation throughout construction. No work must render heating hot water or domestic hot water unavailable to an occupied area except under a shutdown approved in writing.

4.2. Within thirty (30) calendar days after notice to proceed, and before any demolition, the Contractor must submit for VA approval a phasing and continuity of service plan that describes:

· The sequence of demolition, installation, changeover, and startup for each building;

· The temporary heating and temporary domestic hot water equipment to be provided, with capacities, locations, fuel and power connections, and controls;

· Every planned interruption of heating hot water, domestic hot water, natural gas, electrical power, or sanitary service, with its duration and the areas affected;

· The means by which clinical operations are maintained during each interruption.

4.3. The Contractor must furnish, install, connect, operate, maintain, fuel, and remove all temporary heating equipment — including temporary boilers, piping, fuel supply, electrical power, and controls — necessary to maintain heating hot water service to both buildings during the replacement work. All temporary equipment and its operation are included in the base contract price.

4.4. The Contractor must furnish, install, connect, operate, maintain, and remove all temporary domestic hot water equipment necessary to maintain domestic hot water service to both buildings, or must phase the changeover so that service is maintained. No planned interruption of domestic hot water to an occupied area must be allowed unless receiving approval from the COR.

4.5. The heating hot water plant serving either building must not be taken out of service except under a shutdown approved in writing by the COR with temporary heating in place and operating.

4.6. Utility shutdowns. The Contractor must submit a written shutdown request to the COR not less than 14 calendar days before each planned shutdown. Each request must identify the systems and areas affected, the start and stop date and time, the steps and time required to restore service, and the point at which the Contractor will abort and restore service; no shutdown must begin without written COR approval.

5. BUILDING 88 SCOPE

5.1. The Contractor must decommission, disconnect, and safely remove three (3) existing heating hot water boilers and two (2) existing domestic water heaters, together with all associated trim, controls, connections, and obsolete appurtenances, the existing flue vent serving the boilers and water heaters, and the existing water softener system and associated piping.

5.2. The Contractor must furnish and install two (2) new 1,000 MBH high-efficiency commercial condensing heating hot water boilers with natural gas fuel. New boilers must comply with SMAQMD Rule 411, achieving Ultra-Low NOx emissions.

5.3. The Contractor must furnish and install all appurtenances required to establish a high-efficiency primary hydronic loop, including new dedicated primary boiler loop circulating pumps, an appropriately sized diaphragm-type hydronic expansion tank for an indoor utility environment, an air and dirt separator, a chemical feed system (pot feeder) for water treatment, code-mandated safety pressure relief valves, and all associated headers, isolation valves, drains, vents, thermometers, and pressure gauges.

5.4. The Contractor must furnish and install two (2) new secondary heating hot water pumps configured as a lead/lag system, including Variable Frequency Drives (VFDs) on all secondary pumps, dynamic balancing valves to maintain appropriate system flow across the facility under variable conditions, and all associated headers, isolation valves, and appurtenances to create a complete primary/secondary loop arrangement.

5.5. The Contractor must furnish and install two (2) new 130 MBH natural gas high-efficiency condensing-type domestic water heaters and connect the new units to all plumbing, fuel, flue, and controls systems as specified herein.

5.6. The Contractor must provide a completely new domestic hot water ancillary loop, including two (2) new domestic hot water recirculating pumps, a digital master mixing/tempering valve station, a diaphragm-type potable water expansion tank sized for system capacity, and a central water softening system tailored to system capacity.

5.7. To accomplish the consolidation required by paragraph 2.1, the Contractor must remove the existing preheat piping, pumps, and appurtenances made obsolete by the consolidation, cap and seal all abandoned connections, modify or re-pipe the affected heating coils and control valves to serve them from the single consolidated hydronic hot water system, and re-balance and re-commission the affected air systems.

6. BUILDING 98 SCOPE

6.1. The Building 98 scope is not covered by drawings or specifications.

6.2. The Contractor must decommission and remove two (2) existing Clever-Brook ClearFire-CE heating hot water boilers, one (1) existing domestic water heater serving Building 98, together with all associated trim, controls, connections, and obsolete appurtenances.

6.3. The Contractor must furnish and install new high-efficiency condensing heating hot water boilers with natural gas fuel, complying with SMAQMD Rule 411 and achieving Ultra-Low NOx emissions. Installed capacity and the number of units must be established by the Contractor's heating load calculation and must be not less than the capacity of the existing units. Input rating of the existing ClearFire-CE boilers is approximately 600 MBH, to be field-verified from the equipment nameplates and reported to the COR.

6.4. The Contractor must furnish and install one (1) new natural gas high-efficiency condensing-type domestic water heater of not less than 399,000 BTU/hr input, and must connect the new equipment to all plumbing, fuel, flue, and controls systems as specified herein.

6.5. The Contractor must replace the domestic hot water recirculating pump with new equipment of equal or greater capacity, complete with connections, isolation valves, and controls.

6.6. The Contractor must decommission and remove the existing sump pump serving Building 98, together with all associated controls, float switches, discharge piping, check and isolation valves, and electrical connections.

6.7. The Contractor must furnish and install four (4) new sump pumps of equal or greater capacity, complete with:

· Duplex pumps with alternating lead/lag control where duplex pumps exist or are required by the duty;

· New discharge piping, check valves, isolation valves, and unions to the existing discharge point;

· New level controls and a high-water alarm annunciated at the Building Automation System;

· New basin covers, vents, and guide rails or supports as required by the installation;

· Cleaning of the existing basin or pit, and repair of the basin, cover, and inlet where deteriorated.

6.8. Sump pump replacement equipment selection, and controls must be submitted and obtained VA approval before procurement.

7. COMMON REQUIREMENTS

7.1. The Contractor must modify and extend the existing natural gas piping network to support the new boiler and water heater configurations. All new gas piping must include code-compliant regulators, isolation shut-off valves, and sediment traps at each unit connection. All work must comply with NFPA 54 and the IFGC.

7.2. The Contractor must provide all intake and flue vent piping to support the new condensing heating hot water boilers and domestic hot water heaters. Vent materials must be code-compliant or manufacturer-approved PVC/CPVC condensing vent material as appropriate. All penetrations through the building envelope must be terminated with code-compliant caps and screens and sealed.

7.3. The Contractor must provide a condensate neutralization kit at each condensing appliance. The Contractor must verify that an approved floor drain or other sanitary receptor is available within reach of each condensate discharge and must provide the condensate piping, trapping, and any condensate pump required to reach it. Where no approved receptor is available, the Contractor must notify the COR in writing before installing the affected equipment. Condensate disposal must comply with the adopted plumbing code.

7.4. The Contractor must verify the combustion air supply and the mechanical room ventilation available in each boiler room and must confirm that both are adequate for the new equipment configuration.

7.5. All new boilers, domestic water heaters, pumps, expansion tanks, air and dirt separators, water softeners and brine tanks, mixing valve stations, sump pumps, and all new piping and suspended equipment must be anchored and restrained against seismic forces.

7.6. The Contractor must perform engineering review and provide modification of existing concrete housekeeping pads or installation of new reinforced concrete equipment pads as necessary to accommodate the footprints and operating weights of the new equipment.

7.7. The Contractor must provide and install all electrical infrastructure necessary to serve the new equipment, including new circuit breakers in existing panels (sized to the new equipment MCA/MOP ratings); new conduit and conductors from panels to all new boilers, water heaters, pumps, sump pumps, and associated equipment; local safety disconnect switches at each piece of equipment; Variable Frequency Drives for the new secondary heating hot water pumps, each with bypass, circuit breaker disconnects, and hand-off-auto switch with indicating lights; and all grounding and bonding per NEC requirements.

7.8. Where any existing panel, feeder, breaker, or conductor scheduled to remain is found not to be adequate for the new equipment, the Contractor must notify the COR in writing before performing the affected work and must not proceed until directed.

7.9. The Contractor must conduct upgrades to existing panels, feeders, and breakers found inadequate.

7.10. The Contractor must provide all labor, materials, and equipment to fully automate, monitor, and integrate the new mechanical and plumbing plant infrastructure into the existing campus Building Automation System (BAS), including the new boilers, domestic water heaters, primary and secondary pumps and their VFDs, thermostatic mixing valve stations, water softeners, and sump pumps.

7.11. The Contractor must field-verify the existing campus BAS platform, vendor, and network architecture before designing the controls integration strategy, and must coordinate all integration work with the incumbent campus BAS service provider.

7.12. All new primary and secondary hydronic piping loops must be: Hydrostatically pressure tested at 1.5 times the system design pressure for a minimum continuous duration of 24 hours prior to application of pipe insulation. Flushed and chemically cleaned to remove construction debris, flux, and scale. Chemically passivated and treated before equipment startup.

7.13. All new and modified natural gas piping must be pressure tested and purged in accordance with NFPA 54 and the IFGC before being placed in service.

7.14. The Contractor must submit a signed test report for each tested section recording the test medium, pressure, duration, and the witness.

7.15. All new and modified domestic hot water piping, water heaters, storage, recirculation loops, mixing valve stations, water softeners, and expansion tanks must be cleaned, disinfected, and flushed before the system is returned to service. The Contractor must coordinate the procedure with the facility water management program, must obtain written clearance from the facility before returning domestic hot water service to patient care areas, and must set, verify, and record the delivered hot water temperature at the mixing valve station and at representative fixtures.

7.16. All new intake and flue vent systems must be inspected for joint integrity, slope, support, termination clearances, and compliance with the equipment manufacturer's installation instructions before the equipment is placed in service, and the inspection must be documented in a signed report.

7.17. The Contractor must engage a qualified, independent TAB contractor certified by the Associated Air Balance Council (AABC) or the National Environmental Balancing Bureau (NEBB) to perform a comprehensive water-side balance of the new hydronic systems and an air-side balance of every air handling unit and terminal device affected by the consolidation. The Contractor must submit a complete TAB report for VA review.

7.18. Commissioning of all new systems installed under this project must be performed by a commissioning agent (CxA) engaged by the Contractor. The CxA must submit a Commissioning Plan for VA approval before functional testing begins, must witness and document functional performance testing of each new system, and must submit a final commissioning report. Any test that cannot be performed under representative load before substantial completion, including heating-season verification of boiler staging and hot water reset, is a seasonal or deferred test under paragraph 15.4.

7.19. Startup of each new boiler, domestic water heater, pump, VFD, water softener, mixing valve station, and sump pump must be performed by a factory-authorized representative of the equipment manufacturer.

8. RECORDS MANAGEMENT LANGUAGE FOR CONTRACTS REQUIRED

8.1. Applicability

This clause applies to all Contractors whose employees create, work with, or otherwise handle Federal records, as defined in Section B, regardless of the medium in which the record exists.

8.2. Definitions

“Federal record” as defined in 44 U.S.C. § 3301, includes all recorded information, regardless of form or characteristics, made or received by a Federal agency under Federal law or in connection with the transaction of public business and preserved or appropriate for preservation by that agency or its legitimate successor as evidence of the organization, functions, policies, decisions, procedures, operations, or other activities of the United States Government or because of the informational value of data in them.

The term Federal record:

1. Includes VHA records.

2. Does not include personal materials.

3. Applies to records created, received, or maintained by Contractors pursuant to their VHA contract.

4. May include deliverables and documentation associated with deliverables.

8.3. Requirements

1. Contractor must comply with all applicable records management laws and regulations, as well as National Archives and Records Administration (NARA) records policies, including but not limited to the Federal Records Act (44 U.S.C. chs. 21, 29, 31, 33), NARA regulations at 36 CFR Chapter XII Subchapter B, and those policies associated with the safeguarding of records covered by the Privacy Act of 1974 (5 U.S.C. 552a). These policies include the preservation of all records, regardless of form or characteristics, mode of transmission, or state of completion.

2. In accordance with 36 CFR 1222.32, all data created for Government use and delivered to, or falling under the legal control of, the Government are Federal records subject to the provisions of 44 U.S.C. chapters 21, 29, 31, and 33, the Freedom of Information Act (FOIA) (5 U.S.C. 552), as amended, and the Privacy Act of 1974 (5 U.S.C. 552a), as amended and must be managed and scheduled for disposition only as permitted by statute or regulation.

3. In accordance with 36 CFR 1222.32, the Contractor must maintain all records created for Government use or created in the course of performing the contract and/or delivered to, or under the legal control of the Government and must be managed in accordance with Federal law. Electronic records and associated metadata must be accompanied by sufficient technical documentation to permit understanding and use of the records and data.

4. VHA and its contractors are responsible for preventing the alienation or unauthorized destruction of records, including all forms of mutilation. Records may not be removed from the legal custody of VHA or destroyed except in accordance with the provisions of the agency records schedules and with the written concurrence of the Head of the Contracting Activity. Willful and unlawful destruction, damage, or alienation of Federal records is subject to the fines and penalties imposed by 18 U.S.C. 2701. In the event of any unlawful or accidental removal, defacing, alteration, or destruction of records, the Contractor must report to VHA. The agency must report promptly to NARA in accordance with 36 CFR 1230.

5. The Contractor must immediately notify the appropriate Contracting Officer upon discovery of any inadvertent or unauthorized disclosures of information, data, documentary materials, records, or equipment. Disclosure of non-public information is limited to authorized personnel with a need-to-know as described in the [contract vehicle]. The Contractor must ensure that the appropriate personnel, administrative, technical, and physical safeguards are established to ensure the security and confidentiality of this information, data, documentary material, records, and/or equipment is properly protected. The Contractor must not remove material from Government facilities or systems, or facilities or systems operated or maintained on the Government's behalf, without the express written permission of the Head of the Contracting Activity. When information, data, documentary material, records, and/or equipment is no longer required, it must be returned to VHA control, or the Contractor must hold it until otherwise directed. Items returned to the Government must be hand-carried, mailed, emailed, or securely electronically transmitted to the Contracting Officer or address prescribed in the [contract vehicle]. Destruction of records is EXPRESSLY PROHIBITED unless in accordance with Paragraph (4).

6. The Contractor is required to obtain the Contracting Officer's approval prior to engaging in any contractual relationship (sub-contractor) in support of this contract requiring the disclosure of information, documentary material, and/or records generated under, or relating to, contracts. The Contractor (and any subcontractor) is required to abide by Government and VHA guidance for protecting sensitive, proprietary information, classified, and controlled unclassified information.

7. The Contractor must only use Government IT equipment for purposes specifically tied to or authorized by the contract and in accordance with VHA policy.

8. The Contractor must not create or maintain any records containing any non-public VHA information that is not specifically tied to or authorized by the contract.

9. The Contractor must not retain, use, sell, or disseminate copies of any deliverable that contains information covered by the Privacy Act of 1974 or that which is generally protected from public disclosure by an exemption to the Freedom of Information Act.

10. The VHA owns the rights to all data and records produced as part of this contract. All deliverables under the contract are the property of the U.S. Government for which VHA must have unlimited rights to use, dispose of, or disclose such data contained therein as it determines to be in the public interest. Any Contractor rights in the data or deliverables must be identified as required by FAR 52.227-11 through FAR 52.227-20.

11. Training. All Contractor employees assigned to this contract who create, work with or otherwise handle records are required to take VHA-provided records management training. The Contractor is responsible for confirming training has been completed according to agency policies, including initial training and any annual or refresher training.

8.4. Flow down of requirements to subcontractors

1. The Contractor must incorporate the substance of this clause, its terms, and requirements including this paragraph, in all subcontracts under this [contract vehicle], and require written subcontractor acknowledgment of same.

2. Violation by a subcontractor of any provision set forth in this clause will be attributed to the Contractor.

9. STATION WORK HOURS, HOLIDAYS

9.1. Schedule of work; all work to be performed during normal working hours from 7:30 AM to 4:00 PM Monday through Friday, except holidays. Final tie-in of equipment must be completed outside of normal working hours, such as evenings or weekends, to avoid any impact on patient care.

9.2. Federal holidays.

10. ENVIRONMENTAL AND REGULATORY COMPLIANCE

10.1. The new heating hot water boilers in both buildings must comply with Sacramento Metropolitan Air Quality Management District (SMAQMD) Rule 411 and must achieve Ultra-Low NOx emissions.

10.2. The Contractor must be responsible for all air district permitting associated with this work.

10.3. All air district permits, correspondence, source test reports, and the issued Permits to Operate must be submitted to the COR and included in the closeout documentation.

11. WARRANTY

11.1. The Contractor must warrant all work, materials, and equipment provided under this contract against defects in material and workmanship for a period of one (1) year from the date of final acceptance, or for the period stated in the contract clauses if that period is longer.

11.2. The Contractor must provide the manufacturer's extended warranty on each new condensing boiler heat exchanger and each new condensing domestic water heater heat exchanger. The warranty term and its conditions must be stated in the equipment submittal and the warranty certificate must be delivered at closeout.

11.3. During the warranty period the Contractor must respond to a reported warranty deficiency affecting heating hot water or domestic hot water service within twenty-four (24) hours of notification, and must correct the deficiency without cost to the Government.

11.4. The Contractor must perform the seasonal and deferred commissioning tests during the warranty period at no additional cost.

11.5. All warranties must be assignable to the Government and must be delivered in the name of the Department of Veterans Affairs.

12. COMPLETION, PUNCH LIST, AND FINAL ACCEPTANCE

12.1. Substantial completion is the point at which all new systems in both buildings are complete, installed, started up, tested, balanced, functionally tested, and in reliable operation; all temporary equipment has been removed; and the facility can use the systems for their intended purpose. Substantial completion must not be recognized while any item of work remains that prevents the full intended use of a system.

12.2. The Contractor must notify the COR in writing when it believes the work is substantially complete. VA and the Contractor must jointly inspect the work and VA will issue a punch list of the items remaining to be completed or corrected.

12.3. The Contractor must complete or correct all punch list items within 15 calendar days of receipt of the punch list and must notify the COR in writing when the punch list is complete. VA will re-inspect the punch list items. The Contractor must bear the cost of any re-inspection made necessary by items reported complete that are not complete.

12.4. Final acceptance occurs when all punch list items are complete, all testing, balancing, startup, and commissioning documentation has been submitted and accepted, all closeout deliverables required have been submitted and accepted, and VA issues written final acceptance. The warranty period begins at final acceptance.

13. PROJECT CLOSEOUT AND TURNOVER

The Contractor must submit the following closeout deliverables for VA review and acceptance before final acceptance.

· Operation and maintenance manuals;

· Final Commissioning Report

· As-built drawings;

· Training;

· Warranty documentation;

· Test and regulatory documentation;

· Spare parts and attic stock;

· Keys, tools, and software. All special tools, keys, programming devices, software, licenses, and access credentials required to operate, service, and modify the installed systems.

14. ATTACHMENTS

14.1. McClellan B88 Boiler Replacement - Drawings Set

14.2. McClellan B88 Boiler Replacement Specifications

14.3. Boiler Flue Detail for Building 98

14.4. Exhibit A – B98 Equipment

Replace B98 and B88 Boiler and Sump Pumps Design Build Building 911 and 98 Fire Alarm Replacement and Security upgrades