Statement_of_Work_Water_Purification.pdf

Statement of Work For

Replacement of Support Water Purification System

1.0 CONTRACT PROJECT:

1.1 Title: Remove existing water purification system and replace with new in the

NPGQC Support Building.

1.2 Location: USDA, APHIS, PPQ, National Plant Germplasm Quarantine Center (NPGQC), BARC-East, Building 580, Beltsville, MD 20705

1.3 Performance Period: From the date of award through TBD

1.4 Project Background: The NPGQC opened in 1979 to safeguard agricultural resources from the risks associated with the entry, establishment or spread of exotic plant diseases from foreign germplasm to be introduced into the United States. Additional expansion projects at NPGQC in the 1980’s and 1990’s added facilities for the Plant Protection Quarantine (PPQ), Plant Health Program (PHP), National Botanist’s and Beltsville Plant Inspection Station, and the PPQ Center for Plant Health Science and Technology (CPHST) Beltsville Laboratory. The most recently completed NPGQC expansion added an additional facility for the foreign plant germplasm testing program and included the specially constructed BSL-3 Enhanced Laboratory and Greenhouse. The NPGQC also provides world leadership and excellence to ensure the plant germplasm designated for release into the U.S.

Germplasm Resource System is free of exotic plant pathogens and supports the preservation of global plant genetics resources.

The facility has a water purification system that is over 20 years old and no longer functioning in the Support Building and requires replacement. This renovation will include removal of the existing system including but not limited to the carbon filter, water softening system, booster pump and all system piping, loop piping is to remain. The new system shall utilize the existing storage tank. Install a new water purification system that shall include but not limited to new Carbon Filter, Water Softening System, and Reverse Osmosis System and two distribution pumps with Hand, Off, Automatic control with automatic alternation of the pumps. The proposal shall include a quote for one year of quarterly preventative maintenance to be performed on the water purification system plus four additional option years.

1.5 Project Description: Contractor shall provide all labor, tools and materials to remove the existing water purification system and install a new water purification system in the Support Building for a Guaranteed Maximum Price. The contractor shall provide system sanitization with a disinfectant. The contractor shall provide start-up services including all programming, flushing as needed and provide a written report detailing the system 0operating parameters and initial settings. The Project consists of demolition of selected existing building elements, including removal of the existing Carbon Filter, Water Softener, and Reverse Osmosis System and shall include disposal. The provision and installation of new Carbon Filter, Water Softener, and Reverse Osmosis System. This contract will also include pricing for one year of quarterly preventative maintenance to be performed on the water purification system plus four additional option years. The contractor shall develop design layout drawings, specifications, provide cut sheets and construction cost estimates for review and approval before construction services commence. The new water purification system shall be connected to the existing water supply, drain and power and shall include all new piping, ball valves and fittings. The existing storage tank, loop piping will be reused, the existing storage tank shall have new level controls installed. The new system shall be installed in such a manner that all equipment located in the room shall be accessible. The new equipment layout will be approved in advance by the Facility Manager.

1.6 Work Sequence: All work shall be performed during normal business hours M-F from 6:30 am until 4:30 pm unless otherwise approved by the Program Project Manager (PPM).

1.7 Contractor Use of Premises: The contractor’s crew will have limited use of the premises while performing the Support Water Purification System project. All contractors must sign in and sign out each day at the Security Guard desk. Confine operations to areas within the area under renovation and outside surrounding areas. Do not disturb portions of the site beyond the Support Building. Contractors will not be allowed to enter other areas of the facility unless escorted and on official business.

Keep driveways and entrances serving the facility clear and available to USDA, facility employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials. Schedule deliveries to minimize space and time requirements for storage of materials and equipment at a preapproved on-site location. Contractor is responsible for scheduling, receiving, and off-loading all deliveries.

USDA will occupy the site and existing surrounding buildings during the entire construction period. Cooperate with USDA during construction operations to minimize conflicts and facilitate USDA program usage.

1.8 Selective Demolition: Contractor shall submit a Demolition Plan containing the proposed demolition and removal procedures for approval by the Program Project Manager (PPM) and Contracting Officer’s Representative (COR) prior to commencement of any demolition work. Perform demolition in such a manner as to eliminate hazards to persons and property; to minimize interference with the use of adjacent areas, utilities and structures or interruption of use of such utilities; and to provide free passage to and from such adjacent areas of structures. Provide safeguards, including warning signs, barricades, temporary fences, warning lights, and other similar items that are required for protection of all personnel during demolition and removal operations. Debris including all plumbing fixtures, filters, equipment, accessories and similar materials shall become property of the Contractor and shall be disposed of by him/her off the Beltsville Agriculture Research Center (BARC) property.

1.9 Architectural and Engineering: Contractor is responsible for providing Shop drawings showing the proposed water purification system layouts with dimensions for approval. Copies of cut sheets for the proposed water purification system and all accessories shall be included.

1.10 Minimum Specifications: The new Water Purification System shall meet or exceed these minimum specifications:

A. One (1) MID-12G-1: Multimedia filter- High efficiency, in depth filter system using a layered media bed of anthracite, silica sand and two grades of garnet for excellent filtration down to 10 microns.

a) 12”D x 52”H FRP fiberglass reinforced polyethylene, NSF 44 Certified

b) Internal distributors; Schedule 80 PVC/ABS

c) 12 Day Time clock Initiated Backwash Cycle

d) Automatic Backwash flow controller

e) Fleck 2750 1” Control valve

f) 2 cubic feet of media

B. One (1) ACA12G-1: Carbon Filter: Granular activated carbon filter designed for reduction in chlorine, taste, and odor and dissolved organic material.

a) 12”D x 52”H FRP fiberglass reinforced polyethylene, NSF 44 Certified

b) Internal distributors; Schedule 80 PVC/ABS

c) 12 Day Time clock Initiated Backwash Cycle

d) Automatic Backwash flow controller

e) Fleck 2750 1” Control valve

f) 2 cubic feet of media

C. One (1) MAT-60-M-1: Twin alternating water softening system designed to provide continuous supply of softened water to the reverse osmosis machine. Meter initiated softener that effectively uses cation resin to reduce hardness & scale.

a) Two (2) 12”D x 52”H FRP fiberglass reinforced polyethylene, NSF 44 Certified

b) Internal distributors; Schedule 80 PVC/ABS

c) Fleck SXT digital display electronic timer

d) Meter initiated with override option

e) Adjustable cycle times

f) Service & diagnostic indicators

g) Automatic Backwash flow controller

h) Fleck 9100 1” Control valve

i) 2 cubic feet of cation resin per mineral tank

j) Corrosion resistant polyethylene brine tank (18”D x 40”H)

D. E4-LE-4400-DLX-6: Reverse Osmosis Machine (low energy utilizing cold water membranes).

System production:

4,400 gallons per day nominal product output from the RO (3 GPM@77 F)

System support structure:

Epoxy painted, structural carbon steel skid & frame for the RO machine System booster pump:

Tonkaflo, multi-stage Centrifugal pump with SS shell/housing, Noryl internals, SS inlet/discharge, 3 phase, TEFC, 208 V. Motor Starters NEMA 4X.

System filter assembly:

Polypropylene cartridge type pre-filter housings (1-micron)

System membranes and housings:

Two (2) thin-film composite low energy membrane elements (4.0”D x 40”H) in two ceramic membrane housings

System piping design:

Inlet plumbing is Sch. 80 High Pressure plumbing: Reinforced rubber hose.

Permeate /Concentrate tubing: Polyethylene tubing

System control package:

Automatic inlet shut off valve Remote machine on/off capability Product water digital conductivity monitor with programmable relay Operating pressure gauges Concentrate and recycle flow control valves Permeate and Concentrate flow meters Low inlet pressure switch Motor Starter Overload with Thermal Motor protection Autoflush system.

E. Two (2) Distribution Pumps: One pump supports the flow rate required to distribute and recirculate the purified water through the loop and back to the storage tank. An Alternator panel will be supplied to automatically alternate the pumps every 24 hours.

a) Two (2) H35B9SS-3: Heavy Duty horizontal multi-stage pumps.

b) Alternator Panel with HOA & automatic alternation of the pumps.

Nema 4 Enclosure.

F. Four (4) Portable Exchange Mixed Bed Deionization Tank Exchanges designed to remove the remaining dissolved ions in the water.

a) Four (4) 14”D x 47”H FRP tanks

b) 3.6 cubic feet of nuclear grade mixed bed DI resin

c) 1” braided PE tubing connecting each tank

d) Two (2) 2 megohm red/green indicator lights between the worker & polisher DI tanks

e) Installed in parallel—split feed between two tanks with two additional tanks inline for polishing.

G. One (1) 30 gpm Ultraviolet sterilizer designed to microbiologically kill bacteria utilizing a 254nm wavelength. Stainless steel chamber and SS light traps required.

a) One (1) IJ30-304SS Ultraviolet purifier

b) Intensity meter

c) UV power supply/ballast

d) Two (2) 30,000 mw/cm2 UV bulbs

e) Quartz sleeves

H. One (1) Stainless steel final filter housing designed to contain .2 micron final filters removing additional particles and capturing dead bacteria.

a) Four round x 2 High, SS filter housing, V-clamp with 222 columns, Silicone O-ring, Mounting Legs

b) Four (4) Pleated, Polyethersulfone membrane .2 micron, 20” postfilters

I. One (1) Digital resistivity monitor with sensor cell on the supply line to the distribution loop.

J. New Level controls for the storage tank (includes high-high, high, low, low-low). The level controls will initiate the RO machine to turn on and off as water is used. The level controls will also protect the distribution pumps should the tank run dry, the pumps will be turned off.

K. New Ventfilter housing & ventfilter for the storage tank L. New pressure gauge installed on the return line to the storage tank.

M. Pre-treatment interconnecting piping prior to the RO machine will be PVC

Schedule 80.

N. Post-RO machine will be Pigmented Polypropylene, utilizing socket-weld, heat fusion.

1.11 Preventative maintenance shall include but not limited to:

• All labor and materials needed to perform the required maintenance shall be included.

Quarterly:

• Inspect & Record activated carbon filter performance data.

• Perform function check water softener.

• Perform reverse osmosis function check.

• Perform storage tank function check.

• Replace reverse osmosis pre-filter cartridge.

• Fill brine tank with salt.

• Inspect & Record system feed water chemistry.

• Inspect & Record softener performance data.

• Inspect & Record reverse osmosis performance data.

• Inspect & Record storage tank performance data.

• Inspect & Record pump performance data.

Bi-Annual:

• Exchange carbon tank.

Annual:

• Replace vent filter and perform maintenance on the vent filter assembly.

• Sanitize reverse osmosis unit.

• Perform maintenance and sanitize storage tank.

• Perform maintenance and distribution loop piping.

2.0 PROJECT CONTACT PERSONS:

2.1 Contracting Officer (CO)

TBD

2.2 Contracting Officer’s Representative (COR)

2.3 Engineer Project Manager (EMP)

2.4 Program Project Manager (PPM):

3.0 PROJECT REQUIREMENTS

3.1 Pre-Proposal Meeting: The contractor shall conduct a pre-proposal meeting at the job site to gather information needed to submit a proposal including shop drawings to the Contracting Officer. Contractor shall take minutes of the meeting which will supplement this statement of work. The proposal shall include a guaranteed maximum price (GMP) and a proposed project schedule.

3.2 Field Investigation and Site Survey: The contractor shall coordinate, schedule and conduct site investigations and project meetings at the project location with PPM and EPM.

3.3 Compliance with Building Codes: In accordance with Public Law 100-678, Federal Agencies must comply with National Building Codes, Local Building Codes, and Zoning Ordinances. The project shall comply with the requirements of American with Disabilities Act and be barrier free for the physically handicapped in accordance with ANSI A117.1 and the Uniform Federal Accessibility Standards.

3.4 Specifications to include Preferred Biobased Products: Construction specifications shall include the use of appropriate Preferred Biobased Products. A list of Preferred Biobased Products can be found at http://www.biopreferred.gov/BioPreferred/faces/catalog/Catalog.xhtml#

3.5 Specifications shall include Recycled-Content Construction Material:

Construction specifications shall include the use of Recycled-Content construction material. A list of recycled –content construction material can be found at https://www.epa.gov/smm/sustainable-management-construction-and-demolition-materials http://www.biopreferred.gov/BioPreferred/faces/catalog/Catalog.xhtml https://www.epa.gov/smm/sustainable-management-construction-and-demolition-materials https://www.epa.gov/smm/sustainable-management-construction-and-demolition-materials