36C78619B0007-A0006002.pdf

Memphis National Cemetery VA Project 860IC3027 Memphis Tennessee Bid Documents and Specifications

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PLANTING IRRIGATION 32 84 00 - 1

SECTION 32 84 00 - PLANTING IRRIGATION

PART 1 - GENERAL

1.1 DESCRIPTION

A. Contractor is responsible for providing an expansion to the existing irrigation system as indicated on the RFP, specs and as built drawings. Furnish design documents and all labor, materials, supplies, equipment, tools, and transportation in connection with and reasonably incidental to the complete installation of the fully functional irrigation system, and provide submittals as specified. The scope of work included but not limited to:

1. Re-build new roadway irrigation main line

2. Re-work main line on North / East section of cemetery. Run 4" main line under new roadway. 2500' C900 4"Main Line.

3. Install 4x2 service tees and connect existing valves with 2" Schedule 40 PVC pipe and reconnect to existing valves.

4. Install 2500' of bi-line 2 wire for Hunter Decoder System, thrust blocks at every 45 and 90 degree turn. flush system.

5. Ductile Iron Fittings w/ Restraints for 4" Main Line Turns, 45 / 90.

6. Each main line service tee will be connected with one-Lok restraint system to ensure fittings stay secure under roadway.

7. Replace 2" ICV valves as needed.

8. Repair lateral lines as needed.

9. Install / Re-Work zones on fence side of roadway.

10. Replace valve boxes as needed.

11. Replace decoders as needed.

B. Other items of work specifically included are:

1. 1. Procurement of all applicable licenses, permits, and payment of required fees.

2. 2. Coordination of Utility Locations ("Call Before You Dig").

3. 3. Maintenance period services.

4. 4. Sleeving for irrigation pipes and wires as required, and/or beneath all hardscape surfaces.

5. 5. Restoration of disturbed existing landscape.

1.2 DEFINITIONS

A. Lateral Piping: Piping located downstream from control valves to sprinklers, specialties, and drain valves. Piping is under pressure during flow.

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B. Mainline Piping: Located downstream from point of connection to water distribution piping to, and including, control valves. Piping is under system pressure.

C. Low Voltage: As defined in NFPA 70 for circuits and equipment operating at less than 50 V or for remote-control, signaling power-limited circuits.

D. Hardscape: Site roads, walks, walls, or any other surface improvements for which removal for excavation to perform maintenance or replacement of the irrigation system pipes, or wires will require disturbance of other than landscape materials.

E. Abbreviations

1. kPa: kilopascal

2. MPa: megapascal

3. GPM: gallons per minute

4. PSI: pounds per square inch

5. Psig: pounds per square inch gauge, same as PSI in this document

6. VAC: volts AC, volts alternating current

7. CO: Contracting Officer

8. COR: Contracting Officer’s Representative

9. R.E.: Resident Engineer

F. Substantial Completion: All components of the irrigation system are installed and functioning;

irrigation system is active and operating automatically. Subsequent to Operational Test, paragraph 3.10H, and may be prior to Distribution Uniformity test, Grounding test, and Irrigation System Acceptance Test, paragraphs 3.10I, J, and K.

G. Warranty Period Commencement: Upon successful completion of Irrigation System Acceptance Test, paragraph 3.10K.

1.3 REQUIRED WORK

A. The following list is not all-inclusive.

1. Vase station hydrant pipe, valves, fittings, valve access boxes.

2. Irrigation remote control valve assemblies, valve access boxes.

3. Quick coupling valve, swing joint, access box.

4. Vase Station Post Hydrant water supply.

5. Lateral pipes and fittings.

6. Sprinklers and swing joints.

7. Irrigation controller modification.

8. Low voltage wiring, splices, access boxes.

9. Trace wire on lateral pipes.

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10. Trace warning tape on main pipe (Vase Station Hydrant supply pipe).

11. Sleeve for lateral pipe under hardscape.

12. Submittals described below.

1.4 RELATED WORK AND DOCUMENTS

A. Existing Utilities: SECTION 01 00 00, GENERAL REQUIREMENTS.

B. Submittals: SECTION 01 33 23 SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES

C. Concrete: SECTION 03 30 53, CAST-IN-PLACE CONCRETE (SHORT FORM).

D. Excavation, Backfill: SECTION 31 20 00, EARTH MOVING.

E. Section 32 90 00, PLANTING

F. Construction record drawings from two previous projects conducted in the vicinity of the proposed work: Sections L and M, 814CM-3016; and Site Improvements and Storage Bins, 814CM-3015.

1.5 QUALITY ASSURANCE

A. Irrigation Contractor:

1. Irrigation Contractor must have demonstrated, using persons directly employed by the Contractor, experience with the construction of at least five (5) irrigation systems having solvent weld PVC pipe, automatic controls, electrically operated remote control valves, and medium radius rotary sprinklers (minimum 3/4-inch inlet with swing joint).

2. Irrigation Contractor must be licensed to perform the specified work in the State of Iowa.

3. Provide documentation to the COR and CO.

B. Equipment Manufacturer:

1. Manufacturer regularly and presently manufactures the item submitted as one of its principal products.

2. There is a permanent service organization, maintained or trained by the manufacturer, which will render satisfactory service within 24 hours of receipt of notification that service is requested.

3. Installer, or supplier of a service, has technical qualifications, experience, trained personnel and facilities to perform the specified work.

C. Products Criteria:

1. Multiple Units: When two or more units of the same type or class of materials or equipment are required, these units are products of one manufacturer.

2. Assembled Units: Manufacturers of equipment assemblies which use components made by others assume complete responsibility for the final assembled product.

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a. All components of an assembled unit need not be products of the same manufacturer but component parts which are alike are the product of a single manufacturer.

b. Components are compatible with each other and with the total assembly for the intended service.

3. Nameplates: Nameplate bearing manufacturer's name or identification trademark shall be securely affixed in a conspicuous place on equipment, or name or trademark cast integrally with equipment, stamped, or otherwise permanently marked on each item of equipment.

D. System Requirements:

1. Full and complete coverage of the irrigated areas is required. Contractor shall, at no additional cost to the Government, make necessary adjustments to head locations as required to achieve full coverage of irrigated areas.

2. Layout work as closely as possible to approved design drawings. Drawings are diagrammatic to the extent that swing joints, offsets and all fittings are not shown.

Diagrammatic also refers to the location of the pipelines and valves, which may have been adjusted for clarity of the drawings. Pipes are to be installed in common trenches wherever possible. Irrigation heads along roadways shall be placed between six inches and 12 inches of pavement or curb unless otherwise specified.

3. Remote control valves shall be located individually or in groups of two to minimize tripping hazards. Where the exact location for the valves has not been set, or there are any conflicts, the location shall be coordinated with the designer and COR before installation.

4. Irrigation pipes and control wire shall run at boundaries of graves, through designated utility lanes or beside roadways so that any gravesite may be opened in the future without disruption of the irrigation system.

5. Irrigation pipes, control wires and power wires shall be run in trenches as designed and indicated on the drawings and meet all industrial standards.

6. Unless noted otherwise, all irrigation pipes, power wires and control wires shall be installed in sleeves or conduit where placed beneath any site hardscape materials with minimum 36” of coverage.

E. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70 by a qualified testing agency, and marked for intended location and application.

F. Completely program the system according to approved irrigation schedule.

G. Follow manufacturer's instructions for installation.

1.6 SUBMITTALS

A. Existing Conditions.

1. Operate the existing irrigation system to demonstrate existing operational status.

Submit a report stating that all remote control valves, sprinklers, quick coupling valve, Renovate Site and Buildings to Correct FCA Deficiencies April 2019

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isolation valves, drain valves, and control components function properly, and itemizing any items that are not operating properly.

2. Demonstrate to the cemetery staff any component that does not function as originally intended.

3. Any component not functioning upon completion of construction as documented prior to construction will be repaired by the contractor at no cost to the owner.

B. Make submittals and provide number of copies per Specifications Section 01 33 23. Unless otherwise noted, provide four (4) copies of irrigation information in a 3-ring binder with table of contents and index sheet. Provide sections that are indexed and labeled for valves, sprinklers, pipe and fittings, wire and wire connectors, ID tags, shop drawings, “DO NOT DRINK” sign and all other irrigation devices and equipment shown or described on the approved drawings and within these specifications. Highlight items being supplied on the catalog cut sheets. Submittal package must be complete prior to being reviewed by the COR.

Incomplete submittals will be returned without review. Sequentially number each page of the submittal for ease in referencing during submittal review. Pages within a letter or number identified Tab section may be numbered sequentially as long as the process is consistent and provide unique page identification for each page of the submittal.

C. Materials List: Include all materials and products that are part of the expansion to the irrigation system including but not limited to: pipe, fittings, valves, mainline components, electrical components and control system components. Quantities of materials need not be included.

D. Manufacturers' Data: Submit manufacturers' catalog cuts and specifications for equipment to be included in the project work. For rotary sprinklers include Center for Irrigation Technology Space Pro Single Leg Profile showing the Distribution Uniformity and Scheduling Coefficient for the nozzles being used at the specified spacing.

E. Shop Drawings: Complete detailed layout shop drawings covering design of system showing pipe sizes and lengths; fittings, locations, types and sizes of sprinkler heads; controls; valves;

drainage pits; location and mounting details of electrical control equipment; complete wiring diagram showing routes and wire sizes; wiring details and source of current and connections to existing services. Do not start work prior to final shop drawing approval.

F. Testing: Submit a proof of testing report with appropriate signature following completion of each test listed in Part 1 of these specifications. Unless otherwise noted, include name of test, date of test, name of the individual completing the test, name of the company completing the test and a summary of the test results. If system fails test, document any and all retests until system passes test.

G. Maintenance and Operation Instructions: Submit information listed in Part 3 of these specifications.

H. Record Drawings: Submit information listed in Parts 1 and 3 of these specifications.

I. Name and address of a permanent service organization maintained or trained by the manufacturers that will as a result of determined warranty work, or after warranty period

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following execution of a service contract for this facility, render satisfactory service within 24 hours of receipt of notification that service is requested.

J. Reproducible as-built drawings. Submit information indicating the as-built conditions for the irrigation system to the COR as marked-up copies of the full sized construction documents posted with all addenda, clarifications and approved modifications. Upon approval by the COR Contractor shall produce electronically drafted as-built drawings. These drawings are to be digitally drafted; scanned images are not acceptable.

K. Controller Chart:

1. Modify the existing Controller Chart or generate a new chart for the entire irrigation system (both pre-existing and current project). Draft using a CADD program. Each type of sprinkler to have a unique color. All pipes within a zone, and the control valve for that zone shall be of a single color, distinguished from the colors of adjacent zones.

2. On this drawing include a table that lists for each zone:

a. zone number, coordinated with indication on as-built drawing;

b. remote control valve size;

c. sprinkler complement (model, quantity, nozzle);

d. regulated discharge pressure of remote control valve;

e. flow;

f. precipitation rate, inches per hour;

g. initial schedule (minutes per cycle, days/week, and application depth per cycle).

3. Draft of chart to be submitted prior to the request for final inspection. Correct all missing or incorrect information on charts during final inspection. Submit for final approval subsequent to final inspection. Upon approval by COR, deliver laminated chart and PDF of chart to COR for cemetery use.

1.7 SUBSTITUTIONS

A. Unless otherwise noted, use specified equipment to match existing equipment. COR must approve equipment prior to construction. Changes and associated design costs to accommodate alternative equipment are Contractor’s responsibility. “As-Built” information shall show the items installed with detailed info such as size, depth, type, etc.

B. Pipe sizes referenced in the construction documents are minimum sizes, and may be increased at Contractor’s option without extra costs to the government .

1.8 PERFORMANCE REQUIREMENTS

A. Minimum Working Pressures: The following are minimum pressure requirements for piping, valves, and appurtenances unless otherwise indicated.

1. Irrigation Mainline Piping: 200 psig.

2. Lateral Piping: 200 psig.

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1.9 CODES AND REGULATIONS

A. Work and materials will be in accordance with the latest edition of the National Electric Code, the Uniform Plumbing Code, and applicable laws and regulations of the governing authorities.

B. If quantities are provided either in these specifications or on the drawings, these quantities are provided for information only. It is the Contractor's responsibility to determine the actual quantities of all material, equipment, and supplies required by the project and to complete an independent estimate of quantities and wastage.

1.10 WARRANTY AND REPLACEMENT

A. The purpose of the warranty is to insure that the Government receives irrigation materials of prime quality, installed and maintained in a thorough and careful manner.

1. Warranty irrigation materials, equipment, and workmanship against defects for a period of one year from Final Acceptance by COR. Fill and repair landscape depressions.

Restore landscape, utilities, structures or site features damaged by the settlement of irrigation trenches or excavations. Repair damage to the premises caused by construction or a defective item. Make repairs within 24 hours of notification from COR.

2. Replace damaged items with identical materials and methods in accordance with contract documents or applicable codes. Make replacements at no additional cost to the contract price.

3. Warranty applies to originally installed materials and equipment and replacements made during the Warranty period.

1.11 GENERAL CONSTRUCTION REQUIREMENTS

A. Notify COR of schedule and prior to mobilization. Coordinate construction of irrigation system with cemetery staff. Coordinate temporary shut-down of existing electrical and plumbing systems with cemetery staff prior to work on existing systems. Disturbance to cemetery operations must be minimized.

1. Coordinate periods of shut-down of existing irrigation system with cemetery staff.

B. Install irrigation pipes and control and power wiring in sleeves under new roads and hardscape prior to installation of road base, and under all other concrete or asphalt, either existing or new for this project.

C. Install irrigation components in landscaped areas unless specifically indicated otherwise.

Irrigation components in other than landscaped areas shall be in HDPE or PVC pipe sleeves, with no joints beneath the non-landscaped areas.

D. Construction may not proceed until staking of irrigation mainline, remote control valve locations, and sprinkler locations are reviewed and accepted by the COR.

1.12 APPLICABLE PUBLICATIONS

A. The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by the basic designation only.

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B. American National Standard Institute (ANSI):

B40.1-05 Gauges-Pressure Indicating Dial Type-Elastic Element

C. American Society of Sanitary Engineers (ASSE):

1013-2005 Reduced Pressure Principle Backflow Preventers

D. American Society for Testing and Materials (ASTM):

A242/A242M-04 (2009) High Strength Low-Alloy Structural Steel

A536-84 (2009) Ductile Iron Castings

B61-08 Steam or Valve Bronze Castings

B62-09 Composition Bronze or Ounce Metal Castings

D1785-06 Poly(Vinyl Chloride) (PVC) Plastic Pipe, Schedule 40, 80, and 120

D1238-04c Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer

D1784-08 Rigid Poly(Vinyl Chloride)(PVC) Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC) Compounds

D1785-06 Poly(Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80, 120

D1894-08 Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting

D2241-05 Poly(Vinyl Chloride) (PVC) Pressure-Rated Pipe (SDR Series)

D2464-06 Threaded Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80

D2466-06 Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 40

D2564-04e1 Solvent Cements for Poly (Vinyl Chloride) (PVC) Plastic Piping Systems

D2657-07 Standard Practice for Heat Fusion Joining of Polyolefin Pipe and Fittings

D3139-98 (2005) Joints for Plastic Pressure Pipes Using Flexible Elastomeric Seals

D3350-10 Standard Specification for PE Pipe & Fittings Materials

F477-08 Elastomeric Seals (Gaskets) for Joining Plastic Pipe

E. American Water Works Association (AWWA):

C110/A21.10-08 Ductile-Iron and Gray-Iron Fittings, 3-Inch Through 48-Inch for Water

C111/A21.11-06 Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings.

C115/A21.15-05 Flanged Ductile-Iron Pipe with Ductile-Iron or Gray-Iron Threaded Flanges

C151/A21.51-09 Ductile-Iron Pipe, Centrifugally Cast, for Water C153/A21.53-00 Ductile- Iron Compact Fittings for Water Service

C504-06 Rubber Seated Butterfly Valves

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C509-09 Resilient-Seated Gate Valves for Water Supply Service

C901-08 AWWA Standard for Polyethylene (PE) Pressure Pipe and Tubing, 13 mm (½ In.) through 76 mm (3 In.), for Water Service

F. Manufacturers Standardization Society (MSS):

SP70-2006 Cast Iron gate Valves, Flanged and Thread Ends

G. National Electrical Manufacturers Association (NEMA):

250-2008 Enclosures for Electrical Equipment (1000 Volts Maximum);

PART 2 - PRODUCTS

2.1 QUALITY

A. Use new materials without flaws or defects.

2.2 SLEEVING

A. Provide sleeves beneath all hardscape for irrigation pipe and all wiring. Provide separate sleeves beneath hardscape for wiring.

B. Sleeve material is DR17 HDPE or Schedule 40 PVC.

C. Sleeve sizes are to be as shown on the drawings or two nominal sizes larger than the water pipe if not shown. The wiring bundle area may not exceed more than 40% of the sleeve cross sectional area.

2.3 PIPE AND FITTINGS

A. All pipe except as noted on the drawings or elsewhere in these specifications is to be Schedule 40 PVC, bell end, solvent weld joint.

B. Threaded Pipe:

1. Polyvinyl Chloride, ASTM D1785, PVC 1120, Schedule 80, for threaded connections, risers and swing joints.

C. Fittings:

1. Lateral pipes: PVC, Schedule 40, solvent welded socket type, ASTM D2466.

2. Threaded Pipe: PVC, schedule 80, ASTM D2464.

3. Swing Joints shall be a standard complete assembly by a manufacture with male pipe thread at inlet and outlet, and lay length as specified on detail drawing.

4. Main pipes, 2”: Epoxy coated ductile iron, push-on joint, and as shown on the drawings.

D. Jointing Materials:

1. Threaded pipes: Use only non-lubricating joint sealant paste on plastic threads. Do not use a sealant containing Teflon, as this is considered a lubricating compound. Confirm

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that compound is appropriate for the plastic. Use non-hardening, non-toxic pipe joint sealant formulated for use on water-carrying pipes on metal threaded connections.

2. Use purple primer approved by pipe manufacturer.

3. Use solvent cement to conform to ASTM Standard D2564, of type approved by pipe manufacturer and appropriate for the temperature during application and curing.

2.4 MAINLINE COMPONENTS

A. Valves (Except remote control valves):

1. Quick Coupling Valve Assembly: as shown on detail drawing.

2. Isolation Upstream of Remote Control Valve

a. Basis of design product: as shown on the drawings.

b. Valve shall be an angle pattern valve permitting swivel over the main pipe.

c. Outlet shall be fitted with a steel or ductile iron spigot x 1” MNPT adapter.

3. Drain Valve

a. Stainless steel gate valve with cross handle and 1” NPT terminations.

b. Basis of design product: Leemco model LGT11SS304X

B. Vase Station Post Hydrant Assembly:

1. Vase Station Post Hydrant: As specified in Section 323000, Site Furnishings

2. Inline pressure regulator:

a. Basis-of-Design Product: Subject to compliance with requirements, provide Watts N55BDU-M1 or comparable product by one of the following:

1) Cash Acme; a division of The Reliance Worldwide Corporation.

2) Conbraco Industries, Inc.; Apollo Valves.

3) Honeywell International Inc.

4) Zurn Plumbing Products Group; Wilkins Water Control Products.

b. Description:

1) Standard: ASSE 1003.

2) Body Material: Bronze.

3) Pressure Rating: Initial pressure of 150 psig.

4) End Connections: Threaded with NPT unions on inlet and outlet.

a. Capacities and Characteristics:

1) Size: 0.75”.

2) Design Flow Rate: 15 gpm.

3) Design Inlet Pressure: 125 psig.

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4) Design Outlet Pressure Setting: 40 psig.

3. The final approved configuration, including the mounting method shall be as approved during the submittal process.

C. Valve Boxes:

1. Quick Coupling Valve and Wire Splice:

a. Valve boxes in pavement shall be precast concrete with compressive strength of the concrete in excess of 30 MPa (4000 psi).

b. Valve boxes in turf and planter areas shall be HDPE structural foam Type A, Class III, black in color. Box shall be 10.25 inch top diameter, 13.75 inch bottom diameter, and 10 inches high with a bolt-lockable lid. Lid is to be black in color. Basis of design product: Rain Bird VB-10RND-H with black lid.

c. Box identification shall be painted characters in the lid. Characters shall be 75 mm (3-inch) high, painted using a stencil with permanent white epoxy paint.

1) Wire splice = WS

2) Quick coupling valve = QV

2. Remote Control Valves:

a. Basis of design product: Oldcastle Enclosure Solutions, H-Series, model PC173018- T22.

b. Description

1) Polymer concrete box, 17” x 30” x 18” high; vertical walls; inset lid.

2) Bolt-down lid.

3) Open bottom.

4) Box identification shall be painted characters in the lid. Characters shall be 75 mm (3-inch) high, painted using a stencil with permanent white epoxy paint. Legend is RCV-##, where ## is the controller station number.

3. Vase Hydrant Supply:

a. Basis of design product: Oldcastle Enclosure Solutions, H-Series, model PC132418- T15.

b. Description

1) Polymer concrete box, 13” x 24” x 18” high; vertical walls; inset lid.

2) Bolt-down lid.

3) Open bottom.

4) Box identification shall be painted characters in the lid. Characters shall be 75 mm (3-inch) high, painted using a stencil with permanent white epoxy paint. Legend is VASE.

2.5 SPRINKLER IRRIGATION COMPONENTS

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A. Remote Control Valve Assembly:

1. Remote control valve:

a. The remote control valve shall be a normally closed 24 VAC 50/60 cycle solenoid actuated globe pattern with flow/pressure characteristics as presented in the following table. The valve pressure rating shall not be less than 200 PSI.

b. Pressure Loss through Remote Control Valve

Flow, GPM 1” Valve 1.5” Valve 2” Valve

5 1.7

10 1.8

20 2.9 3.9

30 5.6 3.6

40 10 3.5

50 15.6 3.6 4.8

75 5.4 4.5

c. The valve body and bonnet shall be constructed of heavy-duty glass-filled UV-resistant nylon and have stainless steel studs and flange nuts; diaphragm shall be of nylon reinforced nitrile rubber.

d. The valve shall have both internal and external manual open/close control (internal and external bleed) for manually opening and closing the valve without electrically energizing the solenoid. The valve's internal bleed shall prevent flooding of the valve box.

e. The valve shall house a fully-encapsulated, one-piece solenoid. The solenoid shall have a captured plunger with a removable retainer for easy servicing, and a leverage handle for easy turning. This 24 VAC 50/60 Hz solenoid shall open with 19.6 volt minimum at 200 PSI. At 24 VAC average inrush current shall not exceed .41 amps.

f. The valve shall have a brass flow control stem for accurate manual regulation and/or shut-off of outlet flow. The valve must open or close in less than 1 minute at 200 PSI, and less than 30 seconds at 20 PSI.

g. The valve construction shall be such as to provide for all internal parts to be removable from the top of the valve without disturbing the valve installation.

h. The electric remote control plastic valves shall have a pressure regulating module capable of regulating outlet pressure between 15 and 100 PSI (+/- 3 PSI) (1,04 and 6,90 Bar +/-0,21 Bar). The module shall have an adjusting knob for setting pressure and Schrader valve connection for monitoring pressure. The pressure shall be adjustable from the when the valve is internally manually bled or electrically activated.

i. Basis of Design product: Rain Bird 100-PEB-PRS-D.

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B. Wiring Components

1. Low voltage wire connectors: Basis of design product: 3M DBR/Y-6.

2. Valve station wire: Type PE, 12 AWG solid copper, red in color.

3. Valve common wire: Type PE, 12 AWG solid copper, white in color.

4. Spare station wire: Type PE, 12 AWG, solid copper, blue in color.

C. Pop-Up Spray Bodies and Nozzles

1. Refer to legend on irrigation plan drawing.

D. Identification Components:

1. Warning Tape: Standard, 4-Mil polyethylene 76 mm (3 inch) wide tape, detectable type blue with black letters imprinted with “CAUTION BURIED IRRIGATION WATER PIPE

BELOW”.

2. Station identification tag inside valve box:

a. Manufactured from polyurethane Behr Desopan.

b. Attached neck and reinforced hole are capable of withstanding 180 lbs. pull.

c. The hole is designed to pass a 16 gauge or smaller solenoid pigtail wire or nylon tie for attachment.

d. Size - 2¼” x 2¾” / ⅝” thick

e. Letters are 1⅛” high.

f. Lettering is hot-stamped in black.

g. All lettering is capable of withstanding outdoor usage.

h. Tags accommodate up to three characters per side.

i. Stamped with control station number on both sides of tag.

j. Basis of design product: Christy I.D. tags with hot-stamped black letters on a yellow background.

3. Tracer Wire: Type PE, 14 AWG solid copper, any color not white, red, blue, green or black.

2.6 IRRIGATION CONTROLLER EXPANSION MODULE

A. Refer to flag note on irrigation site plan.

PART 3 - EXECUTION

3.1 INSPECTIONS AND REVIEWS

A. Site Inspections:

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1. The Contractor shall verify construction site conditions and note irregularities affecting work of this section. Report irregularities to the COR prior to beginning work.

B. Utility Locations (“Call Before You Dig”):

1. Arrange for and coordinate with local authorities the location of all underground utilities, and with cemetery maintenance personnel.

2. Repair any underground utilities damaged during construction. Make repairs at no additional cost to the contract price.

C. Irrigation System Layout Review: Irrigation system layout review will occur after the staking has been completed. Notify the COR one week in advance of review. The COR will identify and approve modifications during this review.

3.2 LAYOUT OF WORK

A. Stake out the irrigation system. Items staked include: quick coupling valve, remote control valves, lateral piping, sprinklers, vase hydrant supply pipe, control wire conduit.

B. Lay out all valve boxes in a neat and orderly fashion, in line and orthogonal to each other and other hard surfaces, prior to excavation.

C. Coordinate rerouting of components with COR if staked irrigation components conflict with utilities or other components or site features.

D. Request approval of layout by COR prior to excavation.

3.3 EXCAVATION, TRENCHING AND BACKFILLING

A. Excavate to permit the pipes to be laid at the intended elevations and to permit workspace for installing connections and fittings.

B. Do not lay pipe on unstable material, in wet trench or when, in the opinion of the COR, trench or weather conditions are unsuitable for the work.

C. Allow a minimum of 80 mm (3 inches) between parallel pipes in the same trench.

D. Hold pipe securely in place while joint is being made.

E. Do not work over, or walk on, pipe in trenches until covered by layers of earth well tamped in place to a depth of 300 mm (12 inches) over pipe.

F. Full length of each section of pipe shall rest upon the pipe bed with recesses excavated to accommodate bells or joints. Do not lay pipe on wood blocking.

G. Install sprinkler pipes to avoid electric ducts, storm and sanitary sewer pipes, water and gas mains, all of which have right of way.

H. Clean interior of pipe of foreign matter before installation. Keep pipe clean during laying operations by means of plugs or other methods. When work is not in progress, securely close open ends of pipe and fittings to prevent water, earth, or other substances from entering.

I. Minimum cover:

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1. 36-inches over irrigation mainline pipe in landscaped areas and to bottom of road base.

(distance from top of pipe to finish grade)

2. 18-inches over irrigation lateral pipe to sprinklers. (distance from top of pipe to finish grade) except where lateral pipe passes beneath columbarium pavement.

3. 12-inches over control wire conduit.

4. 18-inches over control wires that are not in conduit.

5. 450 mm (18-inches) vertical separation between lateral and mainline pipe installed in a common trench.

6. 75 mm (3-inches) minimum horizontal separation between pipes and wiring in a common trench.

7. Install sleeves at depth to maintain specified depth of pipe or wire routed through sleeve.

8. High point of fixed components in access boxes shall not interfere nor come in contact with the access box lid.

9. Elevation of top of quick coupling valve permit 360 degree valve key rotation without encountering the valve box or any other obstruction.

J. Install and maintain safety fencing around all unattended excavation. Place safety signs adjacent to construction area roadway.

K. All excavations must be backfilled by the end of each workday. Do not leave any open trenches overnight, on weekends or on holidays.

L. If trenching operation restricts access to a burial section, provide plywood and safety fencing across open trench to allow access to burial section. Provide access to the satisfaction of the

COR.

M. Excavated material is generally satisfactory for backfill. Backfill will be free from rubbish, vegetable matter, frozen materials, and stones larger than 2-inches in maximum dimension.

Remove material not suitable for backfill. Backfill placed next to pipe will be free of sharp objects that may damage the pipe.

N. Enclose pipe and wiring beneath roadways, walks, curbs, etc. in sleeves. Backfill sleeves in the following manner:

1. Backfill trench using excavated material in 150 mm to 200 mm (6-inch to 8-inch) layers.

Minimum compaction of backfill for sleeves shall be a minimum 95% Standard Proctor Density, ASTM D698-78. Backfill to bottom of road base under roads or to finish grade under walks and curbs.

O. Backfill mainline pipe, lateral pipe and wiring in turf areas in the following manner:

1. Backfill the trench by depositing the backfill material equally on both sides of the pipe or wire in 150 mm (6-inch) layers and compacting to the density of surrounding soil.

P. Dress backfilled areas to original grade. Remove excess backfill to on-site location as directed by the COR.

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Q. Contact the COR for trench depth adjustments where utilities conflict with irrigation trenching and pipe work.

R. Existing sidewalks and curbs shall not be cut during trenching and installation of pipe. Install pipe under sidewalks and curbs by jacking, auger boring, or by tunneling. Repair or replace any concrete that cracks, due to settling, during the warranty period.

S. Close pipe openings with caps or plugs during installation. Tightly cover and protect fixtures and equipment against dirt, water and chemical or mechanical injury. At completion of all work thoroughly clean fixtures, exposed materials and equipment.

T. Place warning tape continuously above sprinkler system water mains and vase hydrant supply pipe at a depth of 12 inches.

U. Survey monuments:

1. Protect markers during construction.

2. If a survey marker is disturbed during construction, the Contractor is responsible for replacing the marker. The Contractor must hire a licensed surveyor to resurvey the location of the marker and replace it in the proper location.

3.4 SLEEVING AND BORING

A. Install pipe and control wires that pass under walks, paving, walls, and other similar areas in sleeves and conduits. Sleeves and conduits under pavement are to be installed prior to construction of road base, or by using directional boring.

B. Install sleeving at a depth that permits the encased pipe or wiring to remain at the specified burial depth.

C. Extend sleeve ends a minimum of 300 mm (12-inches) beyond the edge of the paved surface.

Cover pipe ends and mark edge of pavement with a chisel or saw.

D. Verify that sleeve sizing is adequate prior to installation. Sleeving to be twice pipe size or greater to accommodate retrieval for repair of wiring or piping and shall extend 300 mm (12-inches) beyond edges of paving or construction. Cover pipe ends and mark edge of pavement with a chisel or saw. Note that sleeves required for pipe with restrained casing spacers are larger than twice the diameter of the pipe.

E. Bed sleeves with a minimum of 100 mm (4 inches) of sand or clean soil above top of pipe.

3.5 ASSEMBLING PIPE AND FITTINGS

A. General:

1. Keep pipe free from dirt and pipe scale. Cut pipe ends square and debur. Clean pipe ends.

2. Keep ends of assembled pipe capped. Remove caps only when necessary to continue assembly.

3. Trenches may be curved to change direction or avoid obstructions within the limits of the curvature of the pipe. Minimum radius of curvature and offset per 6 meters (20-

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foot) length of mainline and lateral pipe by pipe size are shown in the following table. All curvature results from the bending of the pipe lengths. No deflection will be allowed at a pipe joint.

4. PVC Pipe Curve Table

SIZE RADIUS OFFSET PER 6

m (20') LENGTH

38 mm

(1 ½")

7.5 m

(25')

2.3 m

(7'-8")

B. Mainline Pipe and Fittings:

1. Plastic pipe:

a. Joints

1) Solvent Welded Socket Type: ASTM D2855.

2) Metal to Metal Threaded Type: Apply liquid Teflon thread lubricant of Teflon thread type. After joint is made hand tight (hard), a strap wrench should be used to make up to two additional full turns.

3) Plastic Threaded Type: Use non-lubricating joint sealant. Do not use Teflon tape nor compound containing Teflon. Hand tighten.

4) Ductile iron tees: Install with gasket lubricant approved by manufacturer.

Restrain with metal restraints produced by fitting manufacturer for use with the fitting.

C. Lateral Pipe and Fittings:

1. PVC Solvent Weld Pipe:

a. Join pipe sections and pipe to fittings according to ASTM D2855-15, Standard Practice for Making Solvent -Cemented Joints with Poly(Vinyl Chloride) (PVC) Pipe and Fittings.

b. Snake pipe from side to side within trench.

2. Fittings: The use of cross type fittings is not permitted.

D. Specialized Pipe and Fittings:

1. PVC Threaded Connections:

a. Use only factory-formed threads. Field-cut threads are not permitted.

b. Apply thread sealant in manner recommended by component, pipe and sealant manufacturers and in accordance with accepted industry practices.

c. Use plastic components with male threads and metal components with female threads where connection is plastic-to-metal.

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d. Do not use Teflon tape or compound on plastic male thread fittings.

3.6 INSTALLATION OF MAINLINE COMPONENTS

A. Setting of valves:

1. Clean interior of valves of foreign matter before installation.

2. Set valve box cover flush with finished grade.

3. Install as indicated in the installation details, per manufacturer’s instructions.

4. Install where indicated on the irrigation plans.

B. Quick Coupling Valve Assembly:

1. As presented in the installation details.

2. Install where indicated in the irrigation plans.

3.7 INSTALLATION OF SPRINKLER IRRIGATION COMPONENTS AND QUICK COUPLERS

A. Remote Control Valve Assembly:

1. Mainline Flushing:

a. Thoroughly flush mainline before installation of Remote Control Valve Assemblies and after installation of new pipe fittings on which the valves will be installed.

b. Flush main pipe out of a drain or quick coupling valve situated on the main so that any debris in the pipe due to the current work is flushed out of the pipe.

c. Flush for a minimum of 20 minutes. Continue flushing until the water is clear of any and all debris.

d. Request that the COR observe the flushing operation and clarity of water before stopping the flushing operation.

2. Install per manufacturer's recommendations where indicated on the drawings.

3. Adjust valve to regulate the downstream operating pressure to 45-50 psi.

4. Wire connectors and waterproof sealant will be used to connect control wires to solenoid wires. Install connectors and sealant per the manufacturer's recommendations.

5. Install only one remote control valve in a valve box.

6. Attach ID tag with controller station number to control wiring at solenoid.

7. Attach ID tag to valve solenoid wire leads.

B. Sprinkler Heads and Quick Couplers:

1. As shown on the detail drawings.

2. Place part circle sprinkler heads no more than 150 mm (6 inches) from edge and flush with top of adjacent walks, header boards, curbs, and mowing aprons, or paved areas at time of installation.

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3.8 INSTALLATION OF CONTROL SYSTEM COMPONENTS

A. Control Wire:

1. Excavate to the conduit sweep that carries existing control wires into the controller.

2. Excavate to the road sleeve carrying existing control wires under the road.

3. Connect the foregoing excavations to the excavation made for the new conduit.

4. Install conduit where shown on drawing, subject to site conditions.

5. Pull wires through conduits using pulling lubricant.

6. Provide a 600 mm (24-inch) excess length of wire in an 200mm (8-inch) diameter loop at each 90 degree change of direction, at ends of conduits and sleeves, and at 30 m (100-foot) intervals along continuous runs of wiring. Do not tie wiring loop. Coil 600mm (24-inch) length of wire within each remote control valve box.

7. Install common wire and one control wire for each remote control valve. Multiple valves on a single control wire are not permitted.

8. Install spare control and common wires as directed on plans.

9. Splice:

a. Locate splice in turf areas using a valve box that contains an irrigation valve assembly, or in a separate valve box.

b. Use same procedure for connection to valves as for in-line splices.

c. If a separate valve box is used for wire splices, paint “WS” in 50 mm (2-inch) high stenciled letters on valve box lid.

10. Unless noted on plans, install wire parallel with mainline pipe.

11. Protect wire not installed with PVC mainline pipe with a continuous run of warning tape placed in the backfill 150 mm (6-inches) above the wiring.

12. Cap all exposed wire ends with direct burial splice kits.

13. Splicing shall be held to a minimum. A pullbox shall be provided at each splice. No splices will be allowed between field located controllers and remote control valves.

3.9 TRACER WIRE INSTALLATION

A. Tracer wire is installed in parallel with all pipe that is not accompanied by power wire or control wire.

B. Tracer wire shall be installed on bottom of trench, adjacent to vertical pipe projections, carefully installed to avoid stress from backfilling, and shall be continuous throughout length of pipe with spliced joints soldered and covered with direct burial splice kit.

C. All tracer wire within an irrigation zone is to be electrically connected so that use of a wire tracker will reveal the paths of all lateral pipe within that irrigation zone.

3.10 TESTING

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A. Notify the COR five working days in advance of testing.

B. Pipelines jointed with solvent-welded PVC joints will be allowed to cure at least 24 hours before testing.

C. Subsections of mainline pipe may be tested independently.

D. Furnish clean, clear water, pumps, labor, fittings, power and equipment necessary to conduct tests or retests.

E. Volumetric Leakage Test –Mainline Pipe:

1. Conduct test prior to backfilling over fittings inserted into the existing main pipeline.

2. Purge all air from the pipeline before test.

3. Temporarily adjust discharge pressure of the pump station to 100 psi.

4. Subject mainline pipe to a pressure of 100 psi for two hours.

5. Inspect fitting joints for leaks.

6. Report results to COR.

F. Correct mainline leaks by removing and reinstalling the fitting that leaks.

G. Hydrostatic Pressure Test – Solvent Weld Lateral Pipe:

1. Subject lateral pipe to a hydrostatic pressure of 80 psi for 30 minutes.

2. Cap the outlet of all swing joints.

3. Backfill to prevent pipe from moving under pressure. Expose couplings and fittings.

4. Leakage will be detected by visual inspection. Replace defective pipe, fitting, joint, valve, or appurtenance. Repeat the test until the pipe passes test.

5. Cement or caulking to seal leaks is prohibited.

6. After lateral passes test and prior to operational test, install sprinklers and backfill and compact all pipe, fittings, joints, or appurtenance.

H. Operational Test – Remote Control Valves, Lateral Piping and Sprinklers:

1. Activate each remote control valve in sequence from the controller. Manual operation on the valves from the bleed valve on the remote control valve is not an acceptable method of activation. The COR will visually observe operation, water application patterns, and leakage.

2. Replace defective remote control valve, solenoid, wiring, or appurtenance to correct operational deficiencies.

3. Replace, adjust, add, or move water emission devices to correct operational or coverage deficiencies.

4. Replace defective pipe, fitting, joint, valve, sprinkler, or appurtenance to correct leakage problems. Cement or caulking to seal leaks is prohibited.

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5. Repeat test(s) until each lateral passes all tests. Repeat tests, replace components, and correct deficiencies at no additional cost to the Owner.

I. Distribution Uniformity (DU):

1. Perform a DU Test on the turfgrass sprinkler zone. Verify that DU meets submittal 1.5C.

2. Perform a catch can test using procedures recommended by the Irrigation Association.

3. Contractor will adjust zone pressures and/or nozzle sizes to meet required Distribution Uniformity in those cases where the DU test value falls more than 15% below the factory value as submitted pursuant to paragraph 1.5C of this specification.

4. The COR will make a decision regarding those situations where the DU does not come to within 15% below the factory value as a result of pressure and nozzle changes.

5. Calculate and provide a written documentation of the DU for each zone tested.

6. An Irrigation Association Certified Landscape Irrigation Auditor must perform the test.

Provide written evidence of certification prior to conducting test.

J. Irrigation System Acceptance Test (Burn in) Prior to requesting the Final Inspection:

1. Upon completion of construction and prior to Final Inspection, an Acceptance Test (Burn

in) must be passed.

2. Coordinate start of test with COR.

3. The entire irrigation system must be fully operational during the test, including pre-existing irrigation zones and new irrigation zones. The irrigation system must operate with no faults for 14 consecutive days. If at any time during the 14-day test period, a system fault occurs, the source of the fault must be determined and corrected and the 14-day evaluation period restarted. Make repairs within 24 hours of notification from COR when a system fault occurs. Document any faults in the proof of test report listing date of fault, fault, cause of the fault and the corrective action taken.

4. Contact the COR to schedule Final Inspection when the system has operated for 14 days without fault.

5. If the system is designed to detect flow and shut down and this condition happens during test, this is considered a success and test continues; if it does not shut down, find and fix the causes, the test starts over.

3.11 MAINTENANCE AND OPERATION INSTRUCTIONS

A. Maintenance and Operating Instructions: Prior to final acceptance, provide verbal instructions, for a period of not less than two hours, to the operating personnel. Provide Maintenance and Operating Instructions for the provided irrigation system in the form of manual(s) as follows:

1. Provide the following information and documentation, adding to the existing Maintenance and Operating Instructions Manual.

2. Catalog cut sheets for all new irrigation hardware not already included in the existing maintenance and operations manual.

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3. Manufacturer’s Technical Service Bulletins.

4. Manufacturer’s Warranty Documentation.

5. Recommended routine maintenance inspections for weekly, monthly and annual inspections and recommended actions for the inspections and a recommended method for recording the findings of the inspections.

6. Predictive schedule for component replacement.

7. Listing of technical support contacts.

8. Operation and maintenance submittal package must be complete prior to being reviewed by the COR. Incomplete submittals will be returned without review.

3.12 WINTERIZATION AND SPRING START-UP

A. Winterize the new irrigation system in accordance with local practices in the first fall after completion of construction of the irrigation system expansion and start up in the spring after completion of installation. Repair any damage caused in improper winterization at no additional cost to the Owner. Coordinate the winterization and start-up with the cemetery landscape maintenance personnel.

3.13 TESTING, OPERATIONAL PERFORMANCE AND ACCEPTANCE

A. Provide the testing as indicated in previous sections of the specifications.

B. Demonstrate the operations of the systems as indicated in the project specifications.

C. Acceptance shall be predicated upon a successful demonstration of the operation of the systems, as described, or demonstrating a fully functional system in automatic operation for a period of 14 days, whichever is more stringent.

3.14 MAINTENANCE

A. Operate and maintain the irrigation system for duration of 30 calendar days after Final Acceptance. Make periodic examinations and adjustments to irrigation system components.

3.15 TOOLS AND SPARE PARTS:

A. Upon completion of the work furnish the Owner the following for his maintenance stock.

1. Four pop-up spray sprinklers, two of each size (4” and 12” pop-up height).

2. Four 1/2” sprinkler swing joints.

3. Two hand tools to lift access box covers

3.16 SITE RESTORATION AND CLEANUP

A. Restore existing landscape that was disturbed, e.g. main irrigation pipe route from pumping plant to new valves. Where new landscape construction does not call for a change to the grade, grade of disturbed landscape is to be brought to original elevation using well compacted native fill clean of stones and debris, finished with topsoil, seed, and mulch. Seed

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is as specified in Landscape Specification Section.