Attachment 4 Specificaitons.pdf

013300 - 1

SUBMITTAL PROCEDURES

013300- SUBMITTAL PROCEDURES

PART 1- GENERAL

1.1 SUMMARY

A. This Section includes administrative and procedural requirements for submitting Shop

Drawings, Product Data, Samples, and other miscellaneous submittals.

1.2 DEFINITIONS

A. Informational Submittals: Written information that does not require CO's approval.

Submittals may be rejected for not complying with requirements.

1.3 SUBMITTAL PROCEDURES

A. Coordination: Coordinate preparation and processing of submittals with performance of construction activities.

1. Coordinate transmittal of different types of submittals for related parts of the

Work so processing will not be delayed because of need to review submittals concurrently for coordination.

a. CO reserves the right to withhold action on a submittal requiring coordination with other submittals until related submittals are received.

B. Processing Time: Allow enough time for submittal review, including time for resubmittals, as follows. Time for review shall commence on CO's receipt of submittal.

1. Initial Review: Allow 10 days for initial review of each submittal. Allow additional time if processing must be delayed to permit coordination with later submittals. CO will advise Contractor when a submittal being processed must be delayed for coordination.

2. If intermediate submittal is necessary, process it in same manner as initial submittal.

3. Allow 10 days for processing each resubmittal.

4. No extension of the Contract Time will be authorized because of failure to transmit submittals enough in advance of the Work to permit processing.

C. Identification: Place title block on each submittal for identification.

1. Include the following information on label for processing and recording action taken:

a. Project name.

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b. Date.

c. Name and address of Contractor.

d. Name of manufacturer.

e. Unique identifier, including revision number.

f. Number and title of appropriate Specification Section.

g. Drawing number and detail references, as appropriate.

h. Other necessary identification.

D. Deviations: Highlight, encircle, or otherwise identify deviations from the Contract

Documents on submittals.

E. Use for Construction: Use only final submittals with mark indicating action taken by

CO in connection with construction.

PART 2 – PRODUCTS

2.1 ACTION SUBMITTALS

A. General: Prepare and submit Action Submittals required by individual Specification

Sections.

1. Number of Copies: Submit three copies of each submittal, unless otherwise indicated. CO will return two copies. Mark up and retain one returned copy as a Project Record Document.

B. Product Data: Collect information into a single submittal for each element of construction and type of product or equipment.

1. If information must be specially prepared for submittal because standard printed data are not suitable for use, submit as Shop Drawings, not as Product Data.

2. Mark each copy of each submittal to show which products and options are applicable.

3. Include the following information, as applicable:

a. Manufacturer's written recommendations.

b. Manufacturer's product specifications.

c. Manufacturer's installation instructions.

d. Manufacturer's catalog cuts.

e. Compliance with recognized trade association standards.

f. Compliance with recognized testing agency standards.

C. Shop Drawings: Prepare Project-specific information, drawn accurately to scale. Do not base Shop Drawings on reproductions of the Contract Documents or standard printed data.

1. Preparation: Include the following information, as applicable:

a. Dimensions.

b. Identification of products.

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c. Fabrication and installation drawings.

d. Notation of dimensions established by field measurement.

D. Samples: Prepare physical units of materials or products, including the following:

1. Samples for Initial Selection: Submit manufacturer's color charts consisting of units or sections of units showing the full range of colors available.

2.2 INFORMATIONAL SUBMITTALS

A. General: Prepare and submit Informational Submittals required by other Specification

Sections.

1. Number of Copies: Submit two copies of each submittal, unless otherwise indicated. CO will not return copies.

2. Certificates and Certifications: Provide a notarized statement that includes sig-nature of entity responsible for preparing certification. Certificates and certifications shall be signed by an officer or other individual authorized to sign documents on behalf of that entity.

B. Manufacturer's Instructions: Prepare written or published information that documents manufacturer's recommendations, guidelines, and procedures for installing or operating a product or equipment. Include name of product and name, address, and telephone number of manufacturer.

PART 3 – EXECUTION

3.1 GENERAL

A. Review each submittal and check for compliance with the Contract Documents. Note corrections and field dimensions. Mark with approval stamp before submitting to CO.

B. Submittals not required by the Contract Documents will not be reviewed and may be discarded.

END OF SECTION 01330

MEASUREMENT AND PAYMENT 011250- 1

SECTION 011250 - MEASUREMENT AND PAYMENT

PART 1 - GENERAL

A. Measurement and payment for contract work will be made only for and under those pay items included in the Schedule of Items. All other work, labor, materials, equipment, and incidentals necessary to successfully complete the project will be considered as included in the payment for items shown. This section defines the method of measurements and basis of payment for work items listed in the Schedule of Items.

B. When more than one class, size, type, thickness, etc. is specified in the Schedule of Items for any pay item, suffixes will be added to the item number to differentiate between the pay items.

1.2 DETERMINATION OF QUANTITIES

A. The following measurements and calculations shall be used to determine contract quantities for payment.

1. For items that are measured by the linear foot, such as pipe culverts, fencing, guardrail, piping, utilities, and underdrains, measurements shall be made parallel to the base or foundation upon which the structures are placed.

1.3 UNITS OF MEASUREMENT

A. Payment shall be by units defined and determined according to U.S. Standard measure and by the following:

1. Each (EA): One complete unit, which may consist of one or more parts.

2. Linear Foot (LF): Measurement of work along its length from point-to-point;

parallel to the base or foundation. Do not measure overlaps.

1. Square Foot (SF): Measurement of work along its length from point-to-point;

multiplied by its width from point-to-point. Do not measure overlaps.

2. Lump Sum (LS): One complete unit.

1.4 METHOD OF MEASUREMENT

A. One of the following methods of measurement for determining final payment is designated on the Schedule of Items for each pay item:

1. ACTUAL QUANTITIES (AQ) - These quantities are determined from actual measurements of completed work.

MEASUREMENT AND PAYMENT 011250- 2

2. LUMP SUM QUANTITIES (LSQ) - These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job. They shall not be measured.

PART 2 - PRODUCTS (NOT APPLICABLE)

PART 3 - EXECUTION (NOT APPLICABLE)

END OF SECTION 011250

GOVERNMENT FURNISHED MATERIALS (GFM) SECTION 01550-1

SECTION 015500 - GOVERNMENT FURNISHED MATERIALS (GFM) PART 1 - GENERAL

A. Applies to materials that shall be provided by the Government and installed by the

Contractor.

1.2 INSPECTION

A. The Contractor shall notify the Contracting Officer (CO) at least 5 calendar days prior to picking up or returning Government-furnished materials.

1. The Contractor and the CO shall jointly inspect all materials during the loading operation at the storage area.

1.3 LIABILITY

A. The Contractor's liability for Government-furnished material shall start at the time he accepts the materials at the storage area and shall terminate upon completion and final acceptance of the work.

1. It shall be implied that the Contractor has accepted Government-furnished from the storage area to the worksite.

2. The Contractor shall provide all labor, equipment, and incidental necessary materials between the worksite and specified storage area.

1.4 REPLACEMENT AND/OR SUPPLEMENTAL MATERIALS

A. Any defective materials discovered prior to the Contractor's acceptance of the materials will be replaced by the Government.

B. If the quantity of Government-furnished material accepted by the Contractor is insufficient to complete the specified work, supplemental materials complying with these specifications shall be provided by the Government at no expense to the Contractor.

C. The Government shall not replace any materials that, in the opinion of the CO, are damaged or lost due to the Contractor's negligence after the Contractor accepts the materials. Such materials shall be replaced at the Contractor's expense.

1.5 SURPLUS MATERIAL

A. After completion and final acceptance of the work, surplus Government-furnished materials shall be returned to the specified storage area in the same mechanical and physical condition as originally accepted.

GOVERNMENT FURNISHED MATERIALS (GFM) SECTION 01550-2

B. Damaged surplus materials shall be replaced at the Contractor's expense.

C. The Contractor's liability for surplus materials shall terminate upon unloading and storage at the storage area.

PART 2 - PRODUCTS

2.1 GOVERNMENT-FURNISHED MATERIALS

A. None

B. All items will be removed from their current installation on a stand adjacent to the wellhead and reinstalled by the contractor in the new utility building. The Yale Cylinder will be provided to the contractor for installation in the utility building lockset upon request.

PART 3 - EXECUTION

3.1 GENERAL

A. Installation and testing of Government-furnished materials shall comply with the applicable contract specifications covering work requiring the use of such materials.

END OF SECTION 015500

SELECTIVE DEMOLITION SECTION 017320- 1

SECTION 017320 - SELECTIVE DEMOLITION

A. This Section includes demolition and removal.

A. Remove: Detach items from existing construction and legally dispose of them off-site, unless indicated to be removed and salvaged or removed and reinstalled.

1.3 MATERIALS OWNERSHIP

A. Except for items or materials indicated to be reused, salvaged, reinstalled, or otherwise indicated to remain Government property, demolished materials shall become

Contractor's property and shall be removed from Project site.

1.4 QUALITY ASSURANCE

A. Regulatory Requirements: Comply with governing EPA notification regulations before beginning selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

B. Standards: Comply with ANSI A10.6 and NFPA 241.

1.5 PROJECT CONDITIONS

A. Government will occupy buildings onsite during this construction. Conduct selective demolition to limit impact to Government operations onsite. Provide not less than 72 hours' notice to CO of activities that will affect Government operations.

B. Hazardous Materials: It is not expected that hazardous materials will be encountered in the Work.

SELECTIVE DEMOLITION SECTION 017320- 2

1. If materials suspected of containing hazardous materials are encountered, do not disturb; immediately notify Contracting Officer (CO).

C. Storage or sale of removed items or materials on-site will not be permitted.

1.6 WARRANTY

A. Existing Warranties: Remove, replace, patch, and repair materials damaged during selective demolition, by methods and with materials so as not to void existing warranties.

2.1 REPAIR MATERIALS

A. Use repair materials identical to existing materials.

1. If identical materials are unavailable or cannot be used for exposed surfaces, use materials that visually match existing adjacent surfaces to the fullest extent possible.

2. Use materials whose installed performance equals or surpasses that of existing materials.

3.1 EXAMINATION

A. Verify that utilities have been disconnected and capped.

B. Survey existing conditions and correlate with requirements indicated to determine extent of selective demolition required.

C. When unanticipated mechanical, electrical, or structural elements that conflict with intended function or design are encountered, investigate and measure the nature and extent of conflict. Promptly submit a written report to CO.

3.2 PATCHING AND REPAIRS

A. General: Promptly repair damage to adjacent construction caused by selective demolition operations.

B. Repairs: Where repairs to existing surfaces are required, patch to produce surfaces suitable for new materials.

C. Finishes: Restore exposed finishes of patched areas and extend restoration into adjoining construction in a manner that eliminates evidence of patching and refinishing.

D. Floors and Walls: Where walls or partitions that are demolished extend one finished area into another, patch and repair floor and wall surfaces in the new space. Provide an even surface of uniform finish color, texture, and appearance. Remove existing floor and wall

SELECTIVE DEMOLITION SECTION 017320- 3

coverings and replace with new materials, if necessary, to achieve uniform color and appearance.

E. Ceilings: Patch, repair, or rehang existing ceilings as necessary to provide an even-plane surface of uniform appearance.

3.3 DISPOSAL OF DEMOLISHED MATERIALS

A. General: Promptly dispose of demolished materials. Do not allow demolished materials to accumulate on-site.

B. Burning: Do not burn demolished materials.

C. Disposal: Transport demolished materials off Government property and legally dispose of them.

END OF SECTION 017320

WATER DISTRIBUTION SYSTEMS 221100- 1

SECTION 221100 - WATER DISTRIBUTION SYSTEMS

A. This Section shall consist of furnishing and installing a water distribution system.

B. This Section shall also include the flushing, testing and disinfection of waterlines.

C. Related Sections include the following:

1. Section 312000 “Earthwork.”

A. HDPE: High Density Polyethylene plastic.

B. PVC: Polyvinyl Chloride

C. GSP: Galvanized Steel Pipe

D. NSF: Formerly National Sanitation Foundation, now NSF International, a global public health and safety organization

1.3 SUBMITTALS

A. Product Data: For the following:

1. Pipe and fittings.

2. Valves, valve boxes, operating wrenches.

B. Plan for disposal of water used for testing and disinfection of waterlines.

C. Water System Operations and Maintenance Manual.

1.4 QUALITY ASSURANCE

A. All work is to be completed according to applicable Federal, State and Local codes. This work includes, but is not limited to, materials, installation, testing and disinfection.

B. Piping materials shall bear label, stamp, or other markings of specified testing agency.

C. NSF Compliance:

1. Comply with NSF 14 for plastic potable-water-service piping. Include marking

"NSF-pw" on piping.

WATER DISTRIBUTION SYSTEMS 221100- 2

2. Comply with NSF 61 Annex G for materials for water-service piping and specialties for domestic water. All pipes, fittings, fixtures, solder and flux shall meet the 0.25% maximum lead content rules for all wetted components.

1.5 MINIMUM SYSTEM REQUIREMENTS

A. Unless otherwise noted, the minimum working pressure for piping and specialties shall be 160 psig.

1.6 DELIVERY, STORAGE AND HANDLING

A. Deliver piping with factory-applied end caps. Maintain end caps through shipping, storage, and handling to prevent pipe-end damage and to prevent entrance of dirt, debris, and moisture.

B. Protect stored piping from moisture and dirt. Elevate above grade.

C. Protect flanges, fittings, and specialties from moisture and dirt.

D. Store plastic piping protected from direct sunlight. Support to prevent sagging and bending.

1.7 PROJECT CONDITIONS

A. Existing Utilities: Do not interrupt utilities serving facilities occupied by the Government or others unless permitted under the following conditions:

1. Notify the Contracting Officer not less than three days in advance of proposed utility interruptions.

2. Do not proceed with utility interruptions without the Contracting Officer’s written permission.

3. Construction shall not interfere in any way with the city water system.

1.8 COORDINATION

A. Coordinate connection to existing waterlines with Contracting Officer.

B. Verify piping materials, sizes, entry locations and pressure requirements are compatible with connection point.

C. Contractor shall coordinate work with the County and State as necessary.

D. Coordinate other utility impacts.

1.9 MEASUREMENT AND PAYMENT

A. Payment will be as listed in the Schedule of Bid Items.

WATER DISTRIBUTION SYSTEMS 221100- 3

2.1 GENERAL

A. All waterlines, pipes, and fittings shall be new and unused, of the type, pressure rating or class, and size specified and as shown on the Drawings.

2.2 WATER DISTRIBUTION PIPES AND FITTINGS AND CONDUIT

A. PVC (For pipe sleeves and conduit only): ASTM D 1785, Schedule 40; solvent-cemented joints.

1. Solvent Cement: ASTM D 2564.

2. Socket Fittings: PVC, Schedule 40, ASTM D 2467.

B. Galvanized Steel (For hydrant, tanker fill station, daylight drain installation, wellhead upgrades, and within 10’ of utility building): ASTM A53, Schedule 40, threaded ends meeting ASME B1.20.1.

1. Fittings: Threaded, ASTM A 338.

2.3 PIPING SPECIALTIES

A. HDPE (For all new supply and distribution piping):

1. Pipe, AWWA C901:

a. Material Designation: PE 4710 resin

b. Material Classification: ASTM D1248

c. Minimum Cell Classification: ASTM D 3350, 445574C

d. Dimension Ratio and Minimum Pressure Rating: DR 11, 160 psig

e. NSF-61 Listed

2. Fittings:

a. Molded HDPE Fittings: ASTM D 3350, PE 4710 resin, butt-fusion type, made to match HDPE pipe dimensions and class.

b. Insert Fittings: Not allowed.

c. Transition Fittings to non-HDPE Pipe: Approved by HDPE pipe manufacturer. Compression-type fittings are not allowed.

WATER DISTRIBUTION SYSTEMS 221100- 4

d. HDPE transitions to steel line shall be welded/threaded.

3. Pipe larger than 2-inch diameter: provide in 40’ lengths rather than rolls.

2.4 WATER VALVES, BOXES, and APPURTENANCES

A. Valves: Valves shall be the same nominal size as the line in which they are installed or as indicated on the Drawings.

1. Valve Operating Rods: Steel, tee-handle, stem of length to operate deepest buried valve, and end socket to match curb valve. Furnish one valve operating wrench with every five (or fraction thereof) curb boxes installed, as indicated on the

Drawings.

B. Poly Valves (All Buried Valves)

1. NSF 61 Certified. Potable water systems only. Valves used in gas distribution are not permitted.

2. PE4710 resin.

3. Opening (Bore): Full port.

4. Ball lubricant shall be optimized for potable water applications.

5. Dimension Ratio and Pressure Rating: Same as pipe in which the valve is installed

6. Model: Polyvalve “Poly-Water II NSF” Valves, as manufactured by Polyvalve

LLC, an Andronaco Industries Company., or an approved equal.

a. Body: Polyethylene

b. Adapter: Polypropylene

c. Groundwater Seal: Neoprene

d. Seat and Stem Seal: EPDM

e. Ball: Acetal

f. Seat Retainer: Acetal

g. Stem: Stainless Steel

h. End Configuration: Butt fusion

i. Operator: 2” square nut

C. VALVE BOXES

1. Valve boxes shall be furnished for all buried valves sized to fit the entire assembly.

Valve boxes shall consist of galvanized steel, and lockable lid. Contractor may fabricate a box and lid system, consistent with project plans, in lieu of a commercial box.

a. Cover shall receive a 2” padlock.

b. Cover shall be easily removeable by hand.

2. Insulation of Valve Boxes: 1” Thick closed cell extruded polystyrene foam board insulation. Cut to fit tightly and attached securely to underside of lid, and placed around box exterior. Styrofoam Highload 40 Extruded Polystyrene Insulation as manufactured by Dow Chemical Company or approved equal.

WATER DISTRIBUTION SYSTEMS 221100- 5

a. Thermal Resistance, per inch, ASTM C518, C177, R-value min: 5.0

b. Compressive Strength, ASTM D1621, psi, min: 40

c. Water Absorption, ASTM C272, % by volume, 24 Hr max: 0.3

d. Water Vapor Permeance, ASTM E96, perms: 1.0

e. Max Use Temp, deg F: 165

f. Coeff. Linear Therm. Expansion, ASTM D696, in/in°F: 3.5X10-5

g. Flexural Strength, ASTM C203, psi, min: 60

h. Compressive Modulus. ASTM D 1621, psi, typical: 1,400

i. Complies with ASTM C578, Type: VI

D. TOOLS FOR OPENING VALVES AND BOXES

1. The Contractor shall supply two valve operating rods for operation of each type of product furnished.

2.5 END SEALS FOR SLEEVES

A. Design: With ASTM C443 compliant gaskets.

B. Model: Link-Seal, as manufactured by Pipeline Seal & Insulator, Inc. or an approved equal.

2.6 LOCATING WIRE

A. Nonconductive pipe shall have a 10 AWG copper tracer wire with blue PE-30 insulation.

2.7 OPERATION AND MAINTENANCE MANUAL

A. The Contractor shall furnish three sets of instructions for operating and maintaining the complete water system, including location of valves and other key system features, testing requirements for any backflow assemblies, parts list and parts order form, etc.

3.1 EARTHWORK

A. Refer to Section 312000 “Earthwork” for excavating, trenching, bedding, and backfilling.

3.2 PIPING INSTALLATION

A. Construct the water system to the lines and grades shown or established in the field.

B. Stake locations of waterlines as shown on the Drawings. Waterline location shall be approved by the Contracting Officer before installation.

WATER DISTRIBUTION SYSTEMS 221100- 6

C. All pipe, fittings, and appurtenances shall be handled and installed in strict conformance to the manufacturer’s recommendations.

D. Drains, valves, and other regulating and controlling devices shall be installed in the line where called for on the drawings.

E. The interior of all pipe, fittings, and other accessories shall be kept as free as possible from dirt and foreign matter at all times. Each piece of line as it is laid shall be cleaned of all debris. When the pipeline has become dirty on the inside during shipment or storage, it shall be swabbed out by drawing a damp swab through the line before placing in trench. Care shall be exercised to keep all joining surfaces clean. Any pipe with contaminated or damaged joining surfaces, which cannot be satisfactorily cleaned or repaired, shall be discarded. Under no circumstances shall pipe be installed in water, and no pipe shall be installed when trench conditions or the weather is unsuitable for such work. At all times when work is not in progress, all open ends of the pipe and fittings shall be securely closed to the satisfaction of the Contracting Officer so that no trench water, rodents, earth, or other substance will enter the pipe or fittings.

F. Any section of pipe already installed and found to be defective shall be removed and replaced with new pipe at the Contractor’s expense.

G. Water and Non-Potable/Sewer Line Crossings

1. Potable and NPWL lines shall never be installed in the same trench.

2. If a new line crosses below an existing line, the existing line shall be supported to prevent settling.

3. Where waterlines intersect NPWLs or are within 10 horizontal feet of NPWLs, the following applies:

a. At least one of the pipes (either the waterline or NPWL) shall be constructed or reconstructed with 200 psi pipe or encased in a continuous sleeve with same rating. At crossing, extend 200 psi pipe or sleeve for a distance of 10 feet perpendicular distance from each side of the waterline. The waterline and NPWL pipes or sleeves shall be centered at the crossing so that the joints will be an equal distance and as far as possible from the crossing.

1) Sleeves: Nominal sleeve diameter to be at least 3 inches larger than nominal diameter of pipe to be encased. Install end seals in annular space at each end of sleeves.

2) In lieu of constructing or reconstructing the NPWL with pipe conforming to waterline requirements, the NPWL may be encased in concrete at least 6 inches thick around the pipe measured at the bell, for

10 feet each side of the waterline.

b. Construct according to applicable federal, state and local regulations which the Contractor is responsible for obtaining and following.

c. Where applicable, state and local regulations supersede the above requirements.

WATER DISTRIBUTION SYSTEMS 221100- 7

H. Culvert Crossings: Where waterline crosses a road culvert, adjust grade of waterline to provide a minimum of 12 inches of separation between the waterline and culvert, maintaining slope of waterline to drain.

I. A minimum of one-foot separation shall be maintained between electric and waterlines in the same trench. Unless the electric conductors are in conduit the waterline shall be a minimum of one foot below the electric conductors.

J. Cutting and Handling of Pipe

1. Cutting of pipe for closure pieces or for other reasons shall be done in a neat manner by methods, which will not damage the pipe. The pipe and fittings shall be handled in such a manner as to insure delivery and final placement in good, undamaged condition. Particular care shall be exercised not to injure the pipe surfaces or coatings. Damaged pipe shall not be used in the work.

K. Laying Pipe

1. No pipe shall be placed in the trench until the Contracting Officer has approved the trench and bedding.

2. Do not drop pipe into trench. Ensure installation procedures meet the manufacturer’s requirements.

3. Pipes shall be placed true to the lines and grades shown on the Drawings and as specified.

4. Each section of the pipe shall rest upon the pipe bed for the full length of its barrel.

5. Backfill the pipe within 24 hours after installing the pipe in the trench, leaving the joints and one foot of pipe on each side of each joint exposed until testing is complete.

6. When work is not in progress, securely close open ends of pipe and fittings.

7. When high density polyethylene or solvent weld joint pipe is used, it shall be weaved in the trench to provide horizontal slack in the line for expansion and contraction.

8. High density polyethylene pipe shall be allowed to cool to within 20ºF of the shaded trench bottom temperature before backfilling.

9. When pipes are installed in a structure or utility box, they shall be adequately supported.

10. Use proper fittings in order to follow the required line and grades and to avoid excessive curvature. Deflections from a straight line or grade, as required by vertical curves, horizontal curves, or offsets, shall not exceed the manufacturer's recommended maximum joint deflection or curvature for their pipe.

11. When more than one pipeline is in the same trench, the pipes shall be separated by at least eight horizontal inches, or as shown on the Drawings.

12. Bends that result in joint tension or permanent pipe deformation are prohibited.

13. Pipelines may be relocated slightly, if necessary, to avoid existing obstacles.

However, slopes shall be maintained to avoid sags, and mid-line low points.

L. Branch Connections

1. Branch connections to the main shall be made with tees.

WATER DISTRIBUTION SYSTEMS 221100- 8

2. Horizontal tees for waterline laterals shall not be permitted. The branch side of tees shall be up when drainage is toward the tee, and down when drainage is away from the tee.

3. Waterline tees shall be the same diameter as the largest pipe connected to the tee.

M. Pipe Joints

1. Joints shall be made, using jointing materials and applied with the proper accessories, in accordance with the manufacturer's instructions. Completed joints shall be watertight, and capable of passing the required hydrostatic testing. If pipe and fittings are assembled with a lubricant, it must be nontoxic.

2. Dissimilar Joints: Connections between two dissimilar pipes or fittings shall be installed in manner recommended by the pipe manufacturer and approved by the

Contracting Officer. Use adapters compatible with both piping materials, outer diameters and system working pressure.

3. HDPE Heat-Fusion Joints

a. According to ASTM D 2657 and piping manufacturer's written instructions.

b. The joining method shall be butt fusion method and shall be performed in accordance with the pipe manufacturer's recommendations. Butt fusion equipment used in the joining procedures shall be capable of meeting all conditions recommended by the pipe manufacturer, including but not limited to, temperature requirements, alignment, and fusion pressures.

c. Personnel trained in butt fusion techniques by the manufacturer of the pipe, shall supervise or perform butt fusion operations.

d. Butt fusion shall be performed between pipe ends or pipe ends and fitting and valve outlets, of like outside diameter and wall thickness, SDR or DR.

Butt fusion joining between same diameters but unlike wall thickness shall not be permitted. Transitions between unlike wall thickness shall be made with a transition nipple (a short length of the heavier wall pipe with one end machined to the lighter wall) or by mechanical means.

e. Branch connections to the main shall be made with polyethylene fittings, and butt fused.

f. Bent Strap Test: On each day that butt fusions are to be made, perform a

“Bent Strap Test.” The first fusion of the day shall be a trial fusion. The trial fusion shall be allowed to cool completely, and then fusion test straps shall be cut out. The test strap shall be 12" (min) or 30 times the wall thickness in length with the fusion in the center, and 1" (min) or 1.5 times the wall thickness in width. Bend the test strap until the ends of the strap touch. If the fusion fails at the joint, a new trial fusion shall be made, cooled completely and tested. Butt fusion of pipe to be installed shall not commence until a trial fusion has passed the bent strap test.

4. Plastic Piping Solvent-Cemented Joints: Clean and dry joining surfaces. Join pipe and fittings according to the following:

WATER DISTRIBUTION SYSTEMS 221100- 9

a. PVC Pressure Piping: Join schedule number ASTM D 1785, PVC pipe and

PVC socket fittings according to ASTM D 2672. Join other-than-schedule-number PVC pipe and socket fittings according to ASTM D 2855.

5. Threaded Metal Joints:

a. Thread pipes with tapered pipe threads according to ASME B1.20.1, apply tape or joint compound, and apply wrench to fitting and valve ends into which pipes are being threaded.

b. Exposed threaded pipe joints on galvanized steel pipe shall be painted with mastic following the manufacturer’s application procedures.

c. Field cut ends shall be squared off by grinding or filing; ends shall be reamed with all chips and flakes removed.

d. Field cut threads or machined joints shall be made with sharp tools to sharp finished ends.

3.3 IDENTIFICATION

A. According to Section 312000 “Earthwork.”

B. Wrap all buried, non-metallic, nonperforated piping with locating wire.

C. Use detectable warning tape over piping and at outside edges of underground structures.

3.4 VALVE INSTALLATION

A. Valves shall be installed in accordance with manufacturer’s requirements and recommendations and good trade practices.

B. Valves shall be installed at the required locations with the joints centered, and valve stems plumb and straight. Valves shall be installed so as to be easily accessible for operation and service. Valves shall be set and joined to pipe and supported, as recommended by the manufacturer or as needed to prevent stress on the valve, fitting, or pipe.

C. Test all valves and appurtenances for proper operating adjustments and settings, and for freedom from vibration, binding, scraping, and other defects.

3.5 PIPE SLEEVE INSTALLATION

A. End Seals

1. The annular space between the sleeve or casing and the installed pipe shall be plugged with an end seal to provide a positive seal against a hydrostatic head and prevent soil from entering the space.

3.6 DAYLIGHT DRAINS

A. Transition from water system piping to galvanized steel pipe 10-feet from atmospheric outlet of daylight drain.

WATER DISTRIBUTION SYSTEMS 221100- 10

B. Install insect screens on the atmospheric outlet of daylight drains. Attach insect screens to pipe as shown in the drawings.

C. Minimum grade of slope of drain shall be 1%.

D. Place riprap securely around outlet with a minimum 12” air gap.

3.7 HYDROSTATIC TESTING

A. General

1. The Contractor shall conduct pressure and leakage tests on all newly constructed portions of the water system, including water mains, service lines, fittings, valves, and hydrants. New waterlines that are extensions or modifications of an existing water system shall be tested at the test pressure specified here unless the

Contracting Officer specifies another pressure. Pneumatic testing will not be allowed.

2. The contractor shall ensure that any appurtenance attached to the pipeline at the time of testing is rated to withstand the pressures that will exist during testing.

3. Conduct piping tests before joints are covered and after thrust blocks, if required, have hardened sufficiently. Joints shall remain uncovered until testing is completed satisfactorily.

4. The Contractor shall furnish the pump, pipe, gauge, measuring device, connections, and all other necessary equipment, and shall furnish the necessary personnel to conduct the tests. All equipment, gauges, and attachments shall be subject to approval by the Contracting Officer.

5. The Contracting Officer shall be present during the testing period.

6. Waterlines shall be tested in sections not to exceed 2,000 ft in length or a maximum pressure differential of 30 psi in the test section.

7. No paints, asphalts, tars, enamels, or other types of pipe compounds shall be used to eliminate leaks.

B. Pressure and Leakage Test

1. The test pressure shall:

a. Equal at least 125% of the normal working pressure at the highest elevation of the test but not exceed 160 psi at any point being tested.

b. Not exceed the thrust restraint design pressures.

c. Not vary by more than +/- 5 psi from the established test pressure.

d. Not exceed twice the rated pressure of valves when the test section includes closed valves.

e. Be not less than 100 psi for all piping within buildings.

2. Pressure Test Procedure

a. Equipment: The test pressure shall be applied by means of a pump connected to the pipe in a manner satisfactory to the Contracting Officer.

WATER DISTRIBUTION SYSTEMS 221100- 11

b. Preparation: Fill pipeline 24 hours before testing. Use only potable water.

Each valved section of pipeline shall be slowly filled with water and all air shall be expelled from the pipeline. Apply test pressure to stabilize system.

c. Pressurization:

1) Increase pressure in 50-psig increments and inspect each joint between increments.

2) Hold at test pressure for 1 hour.

3) Decrease to 0 psig.

4) Slowly increase again to test pressure and hold for 1 more hour. If the test pressure cannot be sustained within +/- 5 psi during this time, then the system will be determined to have leakage.

5) Leakage shall be verified by the Contractor and the Contracting

Officer.

6) Locate and repair leaking joints with new materials and repeat test until leakage is within allowed limits. All visible leaks are to be repaired regardless of the amount of leakage.

d. Examination: All exposed pipe, fittings, valves, and joints shall be carefully examined. Any cracked or defective pipe, fitting, or valve discovered shall be repaired or replaced by the Contractor at his own expense with new material and the test repeated until satisfactory to the Contracting Officer.

3. Results

a. The Contractor shall furnish a written report to the Contracting Officer describing the results of each test. The report must identify the specific portions of the pipeline tested, the pressure, the duration of the tests, and the amount of leakage.

3.8 CLEANING AND DISINFECTION

A. Clean and disinfect water-distribution piping as follows:

1. Purge new water-distribution piping systems and parts of existing systems that have been altered, extended, or repaired before use.

2. Use purging and disinfecting procedure prescribed by authorities having jurisdiction or, if method is not prescribed by authorities having jurisdiction, use procedure described in AWWA C651 or as described below:

a. Flushing Pipelines

1) After the pressure and leakage testing has been completed, all water pipes shall be thoroughly flushed.

2) Flushing shall remove all debris from the pipeline, including HDPE pipe shavings, gravel and any other material that may have accidentally entered the pipeline during construction.

3) Remove all self-closing faucets from hydrants before flushing lines.

Failure to do so will likely clog the internal parts of the faucet.

WATER DISTRIBUTION SYSTEMS 221100- 12

4) Minimum velocities must be obtained in all mainlines, laterals and drainlines.

5) Ensure flushing outlets have adequate drainage and no damage or erosion will occur from the flushing process. Install hoses and/or pipe extensions if necessary.

TABLE 1

Required Flow in Gallons per Minute

(GPM) to provide 2.5 feet per second

Flushing Velocity

Type of Pipe

Nominal Pipe Size

(inches)

HDPE

(SDR 11)

PVC

(160 psi)

Galv. Steel

(Schedule 40)

1 7 9 7

1 ¼ 11 15 12

1 ½ 14 19 16

2 22 30 27

2 ½ - 44 38

3 49 64 58

b. Requirement of Chlorination

1) Pipelines: After flushing, all new waterlines and repaired portions of, or extensions to, existing waterlines shall be disinfected by chlorination. Chlorination shall provide a minimum of 25 mg/l residual after 24 hours contact in the system. This may be expected with an application of 50 mg/l, although some conditions may require more.

The entire system including the storage tank or spring box shall be filled with the disinfecting solution. All taps, hydrants, and other outlets shall be opened and left open until chlorine is noticeable by odor or testing in the water coming from each. Immediately close taps, hydrants, and other outlets. The chlorinated water shall be retained in the waterlines for at least 24 hours. An alternative of introducing a chlorine solution of 300 mg/l for a period of 3 hours is also approved.

c. Preparation of Disinfecting Mixture: Chlorine-bearing compounds used for disinfection shall comply with ANSI/NSF 60.

1) Calcium hypochlorite must be prepared as a water mixture for introduction into the waterlines. The powder should first be made into a paste and then thinned to either a 1 percent or 5.25 percent chlorine solution.

2) Sodium hypochlorite is already a water mixture.

3) Table 2 gives the amount of chlorine-bearing compound to mix to obtain either a 1 percent or 5.25 percent solution.

WATER DISTRIBUTION SYSTEMS 221100- 13

4) Table 3 gives the amount of a 1 percent or 5.25 percent solution required to obtain a 50 mg/l solution for various volumes.

5) Table 4 gives the volume of water contained in each 100 feet of pipe of various sizes.

TABLE 2

Amount of Chlorine-bearing Compound to Mix to Obtain a 1% or 5.25% Solution

Product 1% Solution 5.25% Solution

Amount of

Compound

Gallons of

Water

Amount of

Compound

Gallons of

Water

Calcium Hypo-chlorite (65% Cl)

1 pound 7.67 1 pound 1.36

Sodium Hypochlorite

(5.25% Cl)

1 gallon 4.25 1 gallon 0

TABLE 3

Amount of Chlorine-Water Solution Required to make 50 mg/l

Chlorine Solution for Various Volumes

Volume

(Gallons)

5.25% Solution

1.00% Solution

100 1.52 cup 0.50 gal.

500 0.48 gal. 2.50 gal.

1,000 0.95 gal. 5.00 gal.

5,000 4.76 gal. 25.0 gal.

10,000 9.52 gal. 50.0 gal.

50,000 47.6 gal. 250 gal.

100,000 95.2 gal. 500 gal.

TABLE 4

Volume in Gallons per 100 feet of Pipe

Type of Pipe

Nominal Pipe Size

(inches)

HDPE

(SDR 11)

PVC

(160 psi)

Galv. Steel

(Schedule 40)

1 4.6 5.8 4.5

1 1/4 7.3 9.6 7.8

1 1/2 9.6 12.6 10.6

2 15.0 19.6 17.4

2 1/2 - 28.8 24.9

3 32.6 42.6 38.4

d. Method of Chlorine Application: The preferred method is to fill the storage tank (for a distribution system) or the spring head box (for a supply system) with chlorinated water of the proper strength. The water shall then be released through the outlet lines to the remainder of the system and retained there for the required period of time. If either of these points of application

WATER DISTRIBUTION SYSTEMS 221100- 14

is unavailable, chlorinated water of the proper strength may be added to the beginning of the pipeline extension, or to any valved section of the extension, through a corporation stop installed by the Contractor in the top of the pipe. Other methods may be approved by the Contracting Officer.

e. Testing of Chlorine Residual: To ascertain the concentration, the chlorine residual shall be measured by the Contracting Officer in accordance with the procedures described in the current edition of “Standard Methods for the

Examination of Water and Wastewater,” or AWWA M12, or by using an appropriate high-range chlorine test kit

f. Final Flushing and Testing: Following the retention period, as specified in this Section, all heavily chlorinated water shall be thoroughly flushed from the pipeline until the chlorine concentration in the water leaving any part of the line is no higher than 1 mg/1.

g. Disposal:

1) Heavily chlorinated water shall not be drained directly into streams, rivers, lakes or drainage ditches which lead to surface water.

2) When emptying the lines or tank after the 24-hour period, whether the system has passed or failed, the chlorine solution shall be neutralized before being discharged. Neutralize system by adding sodium thiosulfate to the storage tank in accordance with Table 5 below. Let the sodium thiosulfate sit in the storage tank for 24-hours and then release the water from the tank and flush the system. Residual chlorine at the outlets shall be minimal.

TABLE 5

Amounts of Chemical Required to Neutralize

Various Residual Chlorine Concentrations in

1,000 gallons of Water

Residual Chlorine

Concentration mg/L

Pounds of Sodium

Thiosulfate

(Na2 S2 O3 –

5H2O)

1 0.012

2 0.024

10 0.12

50 0.60

h. Bacteriological Examination: After the system has been disinfected as specified, but before the new water piping is put to use or connected to existing piping, the Contractor shall test the water for bacteriological contamination from representative points in the system as approved by the

Contracting Officer. The coliform organisms shall be tested for presence/absence in accordance with State drinking water regulations. If coliform bacteria are present, testing shall be repeated in accordance with

State drinking water regulations. If the report of this examination is

WATER DISTRIBUTION SYSTEMS 221100- 15

unsatisfactory, the system shall be flushed and the disinfection procedure repeated until the results of bacteriological examinations are satisfactory.

END OF SECTION 221100

PLUMBING APPURTENANCES 221103- 1

SECTION 221103 - PLUMBING APPURTENANCES

A. This section includes piping, fittings, valves, gauges, backflow preventers, and other plumbing devices within buildings, utility boxes, service connection assemblies, and other designated locations.

B. Related sections include the following:

1. Section 221100 “Water Distribution Systems.”

1.2 SUBMITTALS

A. Product Data: For the following:

1. Backflow preventers and assemblies.

2. Water meters

3. Hose bib with integral antisiphon back flow preventer

4. Pipe supports

B. Operation and Maintenance Data: To be used in emergency, operation, and maintenance manuals. Include the data for the following:

1. Backflow preventers.

2. Water meters

1.3 MINIMUM SYSTEM REQUIREMENTS

A. Unless otherwise noted, the minimum working pressure for piping and specialty valves and devices shall be 160 psig.

1.4 Q UALITY ASSURANCE

A. NSF Compliance:

1. All products in contact with potable water shall comply with NSF 61 Annex G. All pipes, fittings, fixtures, solder and flux shall meet the 0.25% maximum lead content rules for all wetted components.

1.5 MEASUREMENT AND PAYMENT

A. Payment will be as listed in the Schedule of Bid Items:

PLUMBING APPURTENANCES 221103- 2

2.1 GENERAL

A. All plumbing appurtenances shall be new and unused, of the type, pressure rating or class, and size specified and as show on the Drawings.

2.2 UTILITY BUILDING BALL VALVE

A. Description: Bronze, 600 psi, threaded NPT end connections.

B. Model: LFB6080G2 Lead Free Ball Valve as manufactured by Watts Regulator, or an approved equal.

2.3 INCDENTAL BALL VALVES

A. Description: Bronze, 600 psi, threaded NPT end connections, quarter turn lever operated.

B. Model: 72032T (1/4”-3”) Full Port, Lead Free Ball Valve as manufactured by AY

McDonald Mfg. Co., or an approved equal.

2.4 SERVICE CONNECTION CHECK VALVE

A. Description: Bronze, AWWA C508, swing-check type with 125-psig working-pressure rating, threaded ends, screwed-in cap, renewable brass disc and resilient seat. Include interior coating according to AWWA C550 and ends to match piping.

B. Model: Figure No. 578 as manufactured by Powell Company, or an approved equal.

2.5 UNION

A. Description: Female type, malleable iron, 150 pound, with ground brass to iron seat.

B. Model: Manufactured by Crane Company, or an approved equal.

2.6 PRESSURE GAUGE

A. Description: 2-inch diameter or larger, 0 to 200 psi range, with brass movement, steel case and bottom mounting with NPS 0.25 threads. Include 1/4” ball valve for gauge isolation.

B. Model: Ashcroft Model 1005 as manufactured by Dresser Industries, or an approved equal

PLUMBING APPURTENANCES 221103- 3

2.7 SNUBBER

A. Provide pressure pulsation dampers as needed for each pressure gauge. Snubbers shall be brass and adjustable.

1. NPT

B. Model: A254 ¼” As manufactured by Dwyer

2.8 WYE-STRAINER

A. Description: 125 psi minimum working pressure, semi-steel or bronze body with threaded ends, with brass plug in blow-off connection and removable stainless steel #30 mesh screen.

B. Model: Style B or F, as manufactured by O. C. Keckley Company, or Model: P/N

LF777S, as manufactured by Watts Regulator Company, or an approved equal.

2.9 Hose Bibb

A. Design: 3/4-inch FIP, rough brass finish, loose key lockshield, with integral anti-siphon back-flow preventer, heavy duty lead free bronze, NSF/ANSI 372 lead free, ASSE 1011 approved, IAPMO certified, 125 psi capacity.

B. Available manufacturer: Model 363LF “No Kink” Arrow-breaker, as manufactured by

Arrowhead Brass Products, Inc., or an approved equal.

2.10 IN-LINE CARTIDGE FILTER

A. Description: For the removal of sediment, rust, taste and odor.

1. Degree of filtration: 5 micron

2. Flow Rate: 10 gpm minimum

3. Pressure Range: 25-100 psi

4. Media: Activated carbon

5. NPT connections

6. Warranty: 10 year

7. NSF compliant

8. Compatible with long lasting cartridge replacements

B. Model: AP801T-C housing with AP810 cartridge as manufactured by Aqua Pure 3M, or approved equal.

2.11 WATER METER

PLUMBING APPURTENANCES 221103- 4

A. Description: AWWA C700, magnetic driven, positive displacement meters of the flat nutating disc type, NSF 372, NSF-61 Annex G certified. Register flow in gallons.

B. Maincases for 1” meter shall be lead-free copper alloy of the removeable bottom cap type with the bottom cap secured by four bolts.

2.12 AIR RELIEF VALVES FOR PIPELINES

A. Description: AWWA C512, float-operated, hydromechanical device to automatically admit air, with cast iron body, stainless steel float, bronze internal parts, 175-psig rated working pressure, and NPS 1 threaded inlet.

B. Model: No. 381VB Vacuum Breaker/Air Valve as manufactured by the Cla-Val

Company, or an approved equal.

2.13 SUPPORTS FOR PIPES AND APPURTENANCES

A. Description: Galvanized steel framing system shall consist of u-bolt mounted a section of pipe. Pipe shall be threaded into a reducing flange, and secured to the utility building floor with a stud type self drilling concrete anchor. Connection to floor shall be grouted using non-shrink grout. Pipe supports shall be installed every 4’ or as needed to adequately support piping systems.

B. Contractor fabricated, of manufactured product is acceptable

C. Manufacturer: Unistrut Corporation or an approved equal.

2.14 BACKFLOW PREVENTER

A. General: ASSE 1013 standard, backflow preventers.

1. Working Pressure: 150 psig minimum, unless otherwise indicated.

2. NPS 2 and Smaller: Unleaded bronze body with threaded ends. Interior

Components: Corrosion-resistant materials.

3. Strainer: On inlet, if indicated.

B. Reduced-Pressure-Principle Backflow Preventers: AWWA C511, suitable for continuous pressure application. The assembly shall consist of an internal pressure differential relief valve located in a zone between two positive seating check modules with captured springs and silicone seat discs. Seats and seat discs shall be replaceable in both check modules and the relief valve. There shall be no threads or screws in the waterway exposed to line fluids. Service of all internal components shall be through a single access cover secured with stainless steel bolts. Body and shutoffs shall be constructed using Lead Free* cast copper silicon alloy materials. Lead Free* reduced pressure zone assembly shall comply with state codes and standards, where applicable, PLUMBING APPURTENANCES 221103- 5 requiring reduced lead content. The assembly shall also include union connections, two resilient seated isolation valves, four resilient seated test cocks and an air gap drain fitting.

The assembly shall meet the requirements of: USC; CSA B64.4.

1. Maximum Pressure Loss: 12 psig through middle 1/3 of flow range.

C. Available Manufacturers:

1. Series LFU009M(2)QT-S as manufactured by Watts Industries, Inc.; Water

Products Div., or approved equal.

2.15 WATER STORAGE TANK FLOAT VALVE

A. Valve shall be non-modulating and accurately control the level of water in the storage tanks. This valve shall fully open when liquid level reaches the low set point and close drip-tight when the level reaches the high set point. This hydraulically operated diaphragm valve shall have pilot control and float mechanism mounted on the cover of the main valve with high and low liquid levels adjusted by positioning the stop collars on the float rod. Valve shall have a minimum level differential of 1” and a maximum level differential of 40”.

B. Available manufacturers:

1. Model 124-01 1-1/2” Float Valve (Angle) with threaded end connections, bronze body, 300 pressure class, model CF1-C1 standard length stainless float rod to allow for maximum level differential, and stainless steel float as manufactured by Cla-

Val or approved equal.

C. Valve in fire storage tank shall be installed to open when water level drops 6”.

Valve in domestic use tank shall be installed to open when water level drops 40”, at maximum level differential.

2.16 CHEMICAL METERING PUMP

A. Flow activated, dry contact signal, chemical metering pump with flow rate outputs 0.49 to 30 gpd. Pump shall be adjustable from 10% to 100% in 1% increments.