HEATING PIPE REPLACEMNT PROJECT WORK ORDER _.doc

UNITED STATES DEPARTMENT OF AGRICULTURE

BELTSVILLE AGRICULTURAL RESEARCH CENTER

FACILITIES SERVICE

ENGINEERING AND CONSTRUCTION BRANCH

BUILDING 426A, BARC-EAST

10300 BALTIMORE AVENUE

BELTSVILLE, MARYLAND 20705-2350

STATEMENT OF WORK AND SPECIFICATION

TO

REPLACE THE EXISTING HOT WATER HEATING PIPING DISTRIBUTION SYSTEM PIPING, INCLUDING ALL FITTINGS, SHUT OFF VALVES, ELBOWS, TEE, UNIONS CONNECTIONS, HANGERS AND ASSOCIATED AT BLDG. #161

BELTSVILLE AGRICULTURAL RESEARCH CENTER

BELTSVILLE, MARYLAND

FEBRUARY 2020

STATEMENT OF WORK

PROJECT NUMBER:

PROJECT LOCATION: Beltsville Agricultural Research Center (BARC), Bldg. #161, Beltsville, Maryland 20705 DESCRIPTION OF WORK: To remove all the existing Hot Water Heating Distribution Piping then supply and install new Hot Water Heating Distribution Piping which shall include: hot water heating supply piping, re-circulated hot water heating piping and associated fittings. This shall include supplying and installing schedule 40 black steel pipe, fittings, shut off valves/isolation valves elbows, tee connections, insulating the pipes with pipe insulation, replace heat exchanger system and . The contractor shall restore damaged floors, walls and ceiling system to their original condition as well as painting those damaged areas and cleanup job site. The Bldg. Hot Water (HW) and Hot Water Return (HWR) shall be replaced. Optional Items as Funding Permits: Supply and install Heat Exchanger Pumps, Supply and install Heat Exchanger System, Room Isolation Valves, 50% acoustical ceiling tile replacement.

In accordance with this contract, the contractor shall provide all labor, material, equipment, and transportation to include all accessories and incidentals necessary to complete this job to government requirements. The facility under this contract may contain asbestos materials. The contractor(s) is/are warned not to disturb any asbestos material during the performance of this work. Should the contractor encounter any material that in his judgment may contain asbestos, he must stop work immediately and notify the contracting officer (CO) within 24 hours.

Prior to commencing work, the contractor is required to obtain Construction Authorization, vehicle permits, and identification badges. These can be obtained from the Engineering and Construction Office, Building 426A, BARC-East, Beltsville, Maryland. Vehicle permits and identification badges shall be returned to the Government prior to the final payment being issued.

NOTE: THE CONTRACTOR SHALL NOTIFY THE GOVERNMENT TECHNICAL REPRESENTATIVE ON 301-504-8434 at least 24 HOURS BEFORE ANY WORK IS SCHEDULED TO START. All contractor's work shall be monitored and inspected by BARC personnel and done in accordance with the Statement of Work and attached drawings, specifications, graphics, BARC Special Conditions, and performed in accordance with all federal, state, and local regulations as well as all applicable local building codes, Construction Standards and Codes, Americans with Disabilities Act, local and State traffic codes, Maryland Department of the Environment, the Maryland Highway Specifications, and the Maryland Department of the Environment Regulations concerning Clean Water Act. In the event of conflict, the most stringent regulation shall prevail.

Scope of Work:

To remove all the domestic water line system, supply and install new domestic water distribution piping system, including potable cold, hot and re-circulated hot water piping including associated fittings, and specialties within the building. This shall include supplying and installing, back flow preventer, fittings, shut off valves, elbows, tee connections, re-insulating the pipes with pipe insulation and the like. Along with restore damaged walls and ceiling system to their original condition as well as painting those damaged areas and cleanup job site.

The following work shall be performed:

A. Mobilization

· Mobilize all necessary personnel, specialized tools and equipment, shoring, soil stabilization approved materials, dumpsters, safety items, etc., to commence work after point of award of the contract and approval of submittals from the COR.

· Dumpster locations shall be coordinated with the COR as well as the final approval of that location.

· Contractor shall submit a construction schedule to the COR. Contractor shall coordinate with Using Activity through the COR for the construction schedule 10 business days after issuance of the Notice to Proceed and prior to beginning construction.

· The Contractor shall have a Bi-Weekly Project meeting with the CO and COR during the project duration. The contractor will be responsible for sending out the invite to everyone, take minutes of the meeting and sending the meeting minutes to everyone within 3 days after the meeting.

· Hours of service shall be Monday – Friday between 7:30 a.m. – 4:00 p.m. Contractor shall not work on government holidays or weekends. Any work performed other than normal working hours shall be approved by the CO in advance.

· The contractor shall be aware that the plumbing work that is scheduled to be done in the labs shall be done during the hours of 5:00 P.M. and 6:30 A.M. or on weekends. In some cases, with 48-hour advance notification the COR may give approval to work in the lab during normal business hours as listed above.

· Contractor shall request, through the COR, an outage to any utility a minimum of 2 days in advance. See general requirements and government special conditions.

B. Demolition

· The contractor shall removal all the Bldgs. Hot Water Heating Distribution System Piping the to heating device valve such as heating coils, hydronic heater etc. See Drawings for piping locations, details, flow and sizing information. Also, view pictures to see location, pipe configuration and pipe condition.

· The contractor shall protect areas that are not to be disturbed and remove all the domestic water line system. The COR shall approve all items prior to demolition. This will require the removal of drywall, ceramic tile as well as ceiling tile. Note to the contractor that they shall preserve the ceiling tile and grid system when possible to reuse at the completion of the piping installation. Only clean ceiling tile without, unbroken ceiling tiles can be reuse; otherwise the contractor shall supply and install new. The material shall match the existing ceiling tiles system in style, size, texture and quality. Labs do not have ceiling tile or drywall within the space only offices, washrooms, lunchrooms, utility rooms, closets, shall have ceiling tile or drywall.

· The contractor shall work on the men’s and women’s washroom on the same floor at time. The restrooms shall be accessible on the other floors while work is being performed on the current floor level. Approval to move to the washroom on the next floor level shall be required from the EPM/COR prior to performing work on the next floor washroom.

· The contractor shall start their work at the Attic level and work down to the basement level in sequential order.

· The contractor shall supply and install 3/4” plywood sheathing overlaid with .030” thick smooth rigid vinyl wall covering for protection of exposed shaft openings as required for safety when an opening is required.

· The contractor shall control the dust from entering the adjacent building work spaces, remove and discard all debris off site at an approved land fill. The contractor shall not at any time use the USDA, ARS, BARC Waste Disposal System such as trash can nor dumpsters to discard project debris.

C. Installation

· The contractor shall supply and install for the entire existing Hot Water Heating Distribution System Schedule 40 Black Steel piping, shut off valves, unions, coupling, reducers, elbows, tees, anchoring systems, joint kits, ells, end seals and all other associated required materials to complete the installation of a correctly functioning Hot Water Heating Distribution Piping System. This shall apply to the Supply Hot Water Heating and Re-Circulating hot Water Heating Pipe. The contractor shall connect the new Hot Water Heating Supply and Return Pipe to the existing heating fixtures at the point of termination such as the valve, shut off, line, trap etc. See Drawings for piping locations, details, flow and sizing information. Also, view pictures to see location, pipe configuration and pipe condition.

· The contractor shall replace all horizontal and vertical Hot Water Heating Distribution System Piping with Schedule 40 Black Steel Pipe. The Steel Pipe shall meet or exceed the Specifications for Schedule 40 as Manufactured per ASTM A53 Type (E) Grade (B).

OPTIONAL AS FUNDING PERMITS #1

· The contractor shall supply and install Steam Heat Exchanger System to match the existing in size, type, functionality, and configuration. See Drawings for Steam Heat Exchanger System locations, type, details, flow and sizing information. Also, view pictures to see location, pipe configuration and pipe condition.

OPTIONAL AS FUNDING PERMITS #2

· The contractor shall supply and install an Isolation Valve at the entrance to each room that has a heating device such as heating coils, hydronic unit etc. approximately (35) valves for the supply pipe and (35) valves for the re-circulation pipe.

OPTIONAL AS FUNDING PERMITS #3

· The contractor shall supply and install 50% of the ceiling acoustical ceiling tiles that shall match the existing tiles in size and type.

· The contractor shall have at least one Maryland State Licensed Masters Plumber Installer that can install and give all piping all fittings, all joints and associated parts in accordance to the manufacturer specifications, industry standard professional practices and all relevant local and national codes whichever one is most stringent. A copy of the Plumbers Maryland State Masters Plumber License to the EPM/COR.

· The contractor shall supply and install a stain grade one side finished 4’-0”x8’-0”x3/4” plywood sheet panels to cover the openings of each Plumbing Riser openings and secure with reusable metal screws. The Panels shall be painted in accordance with the paint specifications listed below.

· The contractor shall supply and install the pipe hanger, anchors and piping support as required in accordance with the manufacture’s specifications.

· In the course of the contractor performing their work shall damage the fire protecting coating that protects the building structural members shall be repaired to its original condition. The material shall be of the same composition, chemical makeup, thickness and fire rating as the existing material.

· The contractor shall remove the existing trap primers and supply and install a new trap primer domestic water service. The trap primers shall be of the same make, model, size material and specifications.

· The contractor shall supply and install a temperature sensor and a normally closed solenoid valve on the discharge of the supply side coming from the water heater to the building. Note upon 180 degrees F the valve shall close.

· The contractor shall provide thermal expansion installation of the plumbing system to address the effects that thermal expansion/contraction has on the piping system as a result of temperature variations per manufacturer specification.

· The contractor shall supply and Support vertical piping at each floor and as specified in the applicable Plumbing Code. Piping 2” (63mm) and smaller shall be installed with mid-story guides.

· The contractor shall supply and install Fire stopping shall be provided to both be compatible with the piping and meet the requirements of ASTM E 814 or ULC S115, “Fire Tests of Through-Penetration Firestops. Pipe insulations or fire resistive coating shall be removed where the pipe passes through a fire stop and, if required by the firestop manufacturer, for 3 inches beyond the firestop outside of the fire barrier.

· In the case when piping material is penetrating a fire rated assembly system such as a fire rate wall, fire rated plenum, fire rated ceiling and fire rated shaft the contractor shall supply and install the required fire protection material that is needed for that assembly rating.

· PIPING INSTALLATION: The contractor shall supply and Install hangers and supports at intervals specified in the applicable Plumbing Code and as recommended by pipe manufacturer.

· VALVE APPLICATION SPECIFICATIONS: The contractor shall supply and Install gate valves close to main on each branch and riser serving 2 or more plumbing fixtures or equipment connections and where indicated.

· The contractor shall supply and Install gate or ball valves on inlet to each plumbing equipment item, on each supply to each plumbing fixture not having stops on supplies, and elsewhere as indicated.

· The contractor shall supply and Install drain valve at base of each riser, at low points of horizontal runs, and where required to drain water distribution piping system.

· The contractor shall supply and Install swing check valve on discharge side of each pump and elsewhere as indicated.

· The contractor shall supply and Install ball valves in each hot-water heating circulating loop and discharge side of each pump.

· SMOKE AND FIRE RATINGS: The contractor shall supply all required materials to meet this requirement where piping is penetrating a fire rated assembly system such as a wall, floor and the like a Plenum-rated Piping System is required, then the pipe shall be wrapped and/or insulated with standard pipe insulation, field installed. The pipe wrap or insulation shall meet the requirements of CAN/ULC-S102.2-03 or ASTM E84. The system shall have a Flame Spread Classification of less than 25 and Smoke Development rating of less than 50.

· THERMAL AND VAPOR BARRIER: The contractor shall supply all required materials to meet this requirement where standard pipe insulation shall be used per this SOW, the contractor shall provide a thermal (radiant, conductive, and convective) and vapor barrier insulation. The insulation products shall be provided in R-value Varies and 1” thickness. The standard pipe insulation shall be UV resistant, CFC-free, non-porous, non-fibrous, and resist mold growth.

· The contractor shall perform all the work in accordance to the manufacturer specifications, industry standard professional practices and all relevant local and national codes whichever one is most stringent. See enclosed manufacturer specifications.

· QUALITY ASSURANCE: Note to the contractor the material shall be certified by NSF International as complying with NSF 14 and NSF 61. Material shall comply with manufacturers specifications. Special Engineered products shall be certified by NSF International as complying with NSF 14.

· INSPECTING AND CLEANING: Note to the contractor the pipes shall be cleaned flushed with cold or hot water after finishing the installation. Inspect and test piping systems following procedures of authorities having jurisdiction and as specified by the piping system manufacturer. Clean and disinfect water distribution piping following procedures of the authority having jurisdiction.

· Note to the contractor that there are plans of the domestic water system of the building that are available for the contractors use. See the COR for the drawings.

· The installation of all work shall be in accordance with the manufacturer’s specifications, International Building Code current regulation, International Plumbing Code current regulation, BARC Special Conditions and Industry Professional Standards. Note to the contractor that BARC Special Conditions and International Codes Supersede Industry Professional Standards.

· The contractor when repairing/replacing the damaged drywall do to their work shall supply and install fire coded drywall to match the existing fire rating of that area as well as the thickness of that area.

· The contractor when repairing/replacing the damaged ceramic tile do to their work shall supply and install new ceramic tile to match the tile of that area.

· The contractor in performing the work shall estimate in the base project to supply and install 50% of the bldgs. acoustical ceiling tiles that shall match the existing tiles in size and type.

· The contractor when repairing/replacing the damaged VCT tile flooring do to their work shall supply and install VCT tile flooring to match the existing of that area as well as the color.

· The contractor when repairing/replacing the damaged carpet flooring do to their work shall supply and install carpet flooring to match the existing of that area as well as the color.

· The areas that were painted and got damaged during the performance shall, repair and prepare surfaces for painting and notify COR to approve condition of room and surfaces before painting. Once approved by COR, contractor shall paint walls, ceiling, trim and miscellaneous surfaces one (1) coat of primer and two (2) coats of eggshell paint. The color is to be selected by the COR. The color is to be selected by the COR.

OPTIONAL AS FUNDING PERMITS #1

· The contractor shall supply and install Steam Heat Exchanger System to match the existing in size, type, functionality, and configuration. See Drawings for Steam Heat Exchanger System locations, type, details, flow and sizing information. Also, view pictures to see location, pipe configuration and pipe condition.

OPTIONAL AS FUNDING PERMITS #2

· The contractor shall supply and install an Isolation Valve at the entrance to each room that has a heating device such as heating coils, hydronic unit etc. approximately (35) valves for the supply pipe and (35) valves for the re-circulation pipe.

OPTIONAL AS FUNDING PERMITS #3

· The contractor shall supply and install 50% of the bldgs. acoustical ceiling tiles that shall match the existing tiles in size and type.

· CLEAN-UP & FINAL PUNCH LIST: The contractor shall clean the site of any loose debris and schedule a final walk thru with Contracting Officer technical representative (COR) and Contracting Officer (CO). Upon completion of all punch list items, the parking passes and badges remitted to the (COR). The Contractor and the COR will instruct the CO that the contract has been to the completed in its entirety.

· The contractor shall provide at least a two-year warranty on the Work/Labor. The contractor shall indicate the years of the warranty upon submission of proposal.

· The contractor shall note that all plumbing installations shall comply with the current International Plumbing Code.

· The contractor shall field verify all field conditions, measurements, quantities and safety constraints prior to bidding and forward any discrepancies or concerns to the Contract Office Representative (COR). Otherwise it’s our intent that all is inclusive of everything regardless of quantity, measurement or level of protection required to accomplish scope of work.

General:

A. Demolition: The contractor shall remove and dispose of Government property, all items indicated as TO BE REMOVED. Such items become the property of the contractor and shall be loaded, transported per applicable DOT regulations, and disposed at approved landfills.

B. Field Verification: The contractor is responsible for field verification of all measurements, quantities and field conditions prior to commencing work.

C. Staging: All equipment, supplies and materials for this contract shall be stored in the work area at the contractor’s risk. The buildings and grounds at BARC will be secured at the end of each day by BARC Security. The security at BARC is not responsible for any of the contractor's stored material, equipment, either inside or outside the building at any time.

D. Construction Project Schedule: See contract, FAR 52.236-15 Schedules for Construction Contracts. The Contractor will not begin actual work until the construction project schedule has been approved by the Contracting Officer. The Contractor shall submit one electronic copy of the updated construction project schedule with each progress payment request.

E. Contract Inspector’s Daily Report: Contractor shall submit to the Contracting Officer a daily report listing the names of all those present on the job site each day, along with their Job Classification, hours of work and a brief description of the work performed by each on that day. The Contract Inspector’s Daily Report is to be submitted at the beginning of work each day for the previous day’s work and shall be maintained throughout the term of the contract.

F. Formal Meetings: Any meeting (deemed formal by the contractor, the COR, or the Contracting Officer) will have the minutes of said meeting prepared by the contractor (and a copy provided to the Contracting Officer). The minutes will include: Date, Name of Attendees (with contact info), Old Business, and New Business subjects (or narratives). Regardless of who requests a meeting (the COR or the Contractor or the Contracting Officer) the contractor may be required to provided hard copy pictures of the issues to be discussed. Each issue will be linked to a contract specification section number and/or subject area by page number. Issues discussed will also include an action/completion date.

G. Safety Submittals: Contractor shall submit a "site specific" Safety Plan to the Contracting Officer that describes how the contractor is to comply with all applicable OSHA standards and NFPA codes pertaining to construction work to include, but not limited to: General Safety and Health Provisions, Occupational Health and Environmental Controls, Personal Protective and Life Saving Equipment, Hand and Power Tools, Welding and Cutting, Electrical, Scaffolds, Fall Protection, Excavations, Demolition, Stairways and Ladders, Toxic and Hazardous Substances, Confined Space Entry, Lockout/Tagout, Respiratory Protection, Hearing Protection. Safety Plan shall identify Contractor and sub-contractor employees who are authorized/qualified to perform electrical work. No work shall proceed until written approval of the Safety Plan by the Contracting Officer. Safety Plan shall describe how the Contractor and/or sub-contractors are to secure equipment, supplies, tools, and chemical products. Contractor and/or sub-contractor equipment, supplies, tools, and chemical products are to be under the control of the Contractor at all times, equipment, supplies tools, and chemical products found not to be under the control of the Contractor or sub-contractor are subject to confiscation and will be reported to the Contracting Officer. Note see the enclosed sample of a Site-Specific Safety Plan.

H. The Contractor shall inspect the entire construction site daily, including days without construction work if there are NFPA 101 Life Safety Code deficiencies existing while construction work is shut down, the results of that inspection shall be documented on the attachment “DAILY INSPECTION FORM”, and the form is to be signed and submitted to the Contracting Officer.

I. Contractor shall provide continuous monitoring for noise, dust, chemical vapor generation, volatile organic compounds, and vibration. At no time shall noise exposure to any ARS staff exceed 75 dB. Contractor shall provide to the Contracting Officer a written weekly update of the all test results and also for proposed work for the subsequent two weeks (a two week “look-ahead”)involving any construction activity that will produce loud noises, heavy vibrations, strong smells, or significant dust inside ARS staff occupied space.

J. Contractor and sub-contractors shall notify in writing the Contracting Officer at least one week prior to executing high risk work (this may be included in the two week “look-ahead” update). High risk work includes, but is not limited to, tasks requiring Lockout/Tag Out, live electrical work, hot work, work at heights, trenching/ shoring, crane operations, and confined space entry. Contractor’s Competent Person shall provide the Contracting Officer written weekly documented safety inspection results.

K. Contractor shall provide to the Contracting Officer for approval, copies of Safety Data Sheets (SDS) for EVERY CHEMICAL WITHOUT EXCEPTION prior to bringing such chemical on the work site.

L. Hot and Grinding Work Permits: The Contractor will not be permitted to work without this permit when performing Hot and Grinding Work.

M. Scheduling: The total contract period shall be 140 calendar days from the point of contract award. A period of 5 calendar days shall be allotted for the submittal, 5 calendar days for review and re-submit process. A period of 10 days shall be allotted for ordering materials. The work on-site shall be limited to one hundred twenty (120) calendar days. The final inspection shall be scheduled a maximum of 120 calendar days from point of contract award, leaving 5 days for punch list remedies. The contractor shall submit a copy of his proposed schedule to the CO for approval. Please note that the shipping time line is 10 delivery time after approved submittals. The actual construction work period shall be 107 calendar days deducted from the 120 days minus 5 days to deliver submittals, five 5 days for submittal review leaving 10 days for ordering and delivery of the materials.

N. Submittals: The contractor shall submit the manufacturer’s technical data sheets and shop drawings for the items listed in the Submittal Registry 5 calendar days from the point of contract award. Each submittal shall be attached to a Submittal Transmittal Form (enclosed), signed by the Contractor, and delivered to the Contracting Officer. Provide 6 copies of each material submittal.

O. Coordination: The contractor shall coordinate with the COR, with adequate notice, all work which will require an inconvenience or work stoppage to Government personnel due to noise, dust, extreme temperatures or interruption in utilities.

P. Complete Work: It is the intent of this project to contract for a complete, functioning mechanical and or electrical system, finished in all respects, accomplished by mechanics skilled in the trades involved and performed in the highest standards of workmanship.

Q. Manufacturer Warranty: Manufacturer shall warrant pipe and fittings for 2 years to be free of defects in materials or workmanship. Warranty shall cover labor and material costs of repairing and/or replacing defective materials and repairing any incidental damage caused by failure of the piping system do to defects in materials or workmanship. Warranty shall be in effect only upon submission by the contractor to the manufacturer valid pressure/leak test documentation indicating that the system was tested and passed the manufacturer’s pressure/leak test.

R. Contractor Guaranty and Warranty: All contracted work shall be guaranteed by the contractor for a period of two (2) year for labor from the date of final acceptance against defective materials, design and workmanship. The material shall be as specified in the manufacture’s specifications but at least one year. Upon receipt of notice from the Government of failure of part or parts of the guaranteed equipment during the warranty period, the affected part or parts shall be replaced within 48 hours with new parts by and at the expense of the contractor. ALL WARRANTIES SHALL BE TURNED OVER TO THE COTR PRIOR TO FINAL INVOICING.

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