904-MM-FY23-007_SFNC 328400-Planting Irrigation.pdf

Santa Fe National Cemetery Air-Vac Valves Santa Fe, New Mexico Project No.: 904-MM-23-007

PLANTING IRRIGATION

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SECTION 32 84 00

PART 1 - GENERAL

1.1 SCOPE

A. Provide irrigation system components, necessary modifications to the existing irrigation system as shown on the plans and described in these specifications. Furnish all labor, materials, supplies, equipment, tools, and transportation, and perform all operations in connection with and reasonably incidental to the complete installation of the irrigation system air and vacuum release valves (ARV), as shown on the drawings and the installation details. Other items of work included are:

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

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

3. Provision of temporary irrigation supply lines to maintain water supply to the irrigation system during construction.

4. Warranty period.

1.2 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.

B. Federal Specifications (Fed. Spec.): RR-F-621E Frames, Covers, Gratings, Steps, Sump and

Catch Basin, Manhole.

C. American National Standard Institute (ANSI):

1. B40.1-91 Gauges-Pressure Indicating Dial Type Elastic Element.

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

1. B61-93 Steam or Valve Bronze Castings.

2. B62-93 Composition Bronze or Ounce Metal Castings.

3. D1785-91 Poly Vinyl Chloride (PVC) Plastic Pipe, Schedule 40, 80, and 120.

4. D2241-89 Poly Vinyl Chloride (PVC) Pressure Rated Pipe (SDR Series).

5. D2287-81 Nonrigid Vinyl Chloride Polymer and Copolymer Molding and Extrusion

Compounds.

6. D2464-91 Threaded Poly Vinyl Chloride (PVC) Plastic Pipe Fittings, Schedule 80.

7. D2466-90 Poly Vinyl Chloride (PVC) Plastic Pipe Fittings, Schedule 40.

8. D2564-94 Solvent Cements for Poly Vinyl Chloride (PVC) Plastic Pipe And Fittings.

9. D2855-90 Making Solvent Cemented Joints with Poly Vinyl Chloride (PVC) Pipe and

Fittings.

10. F477-90 Elastomeric Seals (Gaskets) for Joining Plastic Pipe.

11. B209-96 Aluminum and Aluminum-Alloy Sheet and Plate.

E. American Water Works Association (AWWA):

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1. C110-93 Ductile-Iron and Gray-Iron Fittings, 3-Inch Through 48-Inch for Water and Other

Liquids.

2. C111-90 Rubber Gasket Joints for Ductile-Iron and Gray-Iron Pressure Pipe Fittings.

3. C115-94 Flanged and Ductile Iron and Gray Iron Pipe with Threaded Flanges.

4. C151-93 Ductile-Iron Pipe, Centrifugally Cast in Metal Molds or Sand Lined Molds, for

Water or Other Liquids.

5. C153-94 Ductile-Iron Compact Fittings, 3 Inch Through 12-Inch for Water and Other

Liquids.

6. C500-93 Gate Valves for Water and Sewerage Systems.

7. C504-87 Rubber Sealed Butterfly Valves.

8. C600-93 Installation for Ductile-Iron water Mains and Their Appurtenances.

9. C901-02 Polyethylene (PE) Pressure Pipe and Tubing, ½ In. (13 mm) Through 3 In. (76 mm), for Water Service.

F. Manufacturers Standardization Society (MSS):

1. SP70-90 Cast Iron gate Valves, Flanged and Thread Ends.

G. National Electrical Manufacturers Association (NEMA):

1. 250-85 Enclosures for Electrical Equipment (1000 Volts Maximum); Revision 1, May

1986.

H. National Electric Code: (latest edition).

I. Uniform Plumbing Code: (latest edition).

1.3 DEFINITIONS

A. THE DRAWINGS: Plans and Specifications.

B. DEMOLITION:

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

2. Remove and Salvage: Detach items from existing construction and deliver them to Owner.

3. Remove and Reinstall: Detach items from existing construction, prepare them for reuse, and reinstall them where indicated.

4. Existing to Remain: Existing items of construction that are not to be removed and that are not otherwise indicated to be removed, removed and salvaged, or removed and reinstalled.

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

1.5 QUALITY ASSURANCE

A. Irrigation Contractor http://www.awwa.org/bookstore/product.cfm?id=43901 http://www.awwa.org/bookstore/product.cfm?id=43901

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1. Must have demonstrated, using persons directly employed by the Contractor, experience with the installation of at least five (5) irrigation systems having large diameter gasketed pipe

(6-inch and larger).

2. Irrigation Contractor must be a licensed landscape contractor in the State of New Mexico possessing a current Landscape Contractor’s license.

3. Landscape Foreman shall be a certified Landscape Technician by the New Mexico

Landscape Contractors Association or be a Certified Irrigation Contractor by the Irrigation

Association.

B. Equipment Manufacturer:

1. Manufacturer regularly and presently manufactures the item submitted as one of their 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, and 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.

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. Layout work as closely as possible to drawings. Drawings are diagrammatic to the extent that 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.

2. Determine the exact location for the assemblies by verifying actual field conditions. The locations shall be staked in the field and coordinated with the Contracting Officer’s

Representative (COR) before installation.

E. Follow manufacturer's printed instructions for installation.

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1.6 SUBMITTALS

A. Submit the following to the COR for approval prior to procurement of materials for new assemblies.

B. Submit one electronic copy in Adobe PDF format of each sheet with table of contents and index sheet. Provide sections that are indexed and labeled for valves, pipe and fittings, vaults, shop drawings, and all other irrigation equipment shown or described on the 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.

1. Submittals shall be signed and stamped by the contractor as having been reviewed for completeness and accuracy.

2. Allow 14 days for COR's review, excluding delivery time to and from Contractor.

3. Incomplete submittals will be returned without review.

4. Revise and resubmit shop drawings and manufacturer's product data sheets until approval of

COR is given.

5. Do not start work before final shop drawing approval.

6. Materials List: Include all materials and products that are part of the irrigation system including, but not limited to: pipe, fittings, valves, and mainline components.

7. Manufacturers' Data: Submit manufacturers' catalog cuts, specifications, and operating instructions for equipment shown on the materials list.

C. Product Data: Submit one electronic copy in Adobe PDF format of manufacturer's catalog and product data sheets for each product in the assembly. Include material type, size, rated capacities, and special features and components. Clearly mark or highlight on product data sheets to identify applicable products, models options, size, options for each component in the assembly for which the submittal is being made.

D. Shop Drawings:

1. Submit shop drawings for approval of COR:

a. Air and Vacuum Release (ARV) valve assemblies.

b. Flush Valve assemblies.

2. Show products required for proper installation, pipe and valve sizes, vault dimensions, lay lengths within the vault, critical dimensions, and connections to existing irrigation lines. Note modifications to the installation detail. Field verify existing conditions prior to developing shop drawings. Pothole as required to uncover connection points to the existing system.

3. For each installation, provide shop drawings in plan view showing relationship to existing valves and other fixed site features (i.e., curbs, walls, valve boxes, trees, headstones, etc.).

Provide shop drawings showing longitudinal and cross-section details for each unique condition.

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4. Submit one electronic copy in Adobe PDF format of each sheet showing proposed ARV valve assemblies drawn to scale indicating each piece of equipment in the assembly and lay lengths. Show dimensions of vault and existing piping to remain.

5. Submit one electronic copy in Adobe PDF format of each sheet showing proposed Flush

Valve assemblies drawn to scale indicating each piece of equipment in the assembly and lay lengths. Show dimensions of vault and existing piping to remain.

6. Provide shop drawings showing temporary irrigation lines for supplying water to the existing irrigation system during construction. Show routing, lines sizes, connections to existing irrigation lines.

E. Testing: Submit a proof of testing report 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 all retests until system passes test.

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

G. Record Drawings: Submit information listed in Part 3 of these specifications.

1.7 CODES AND REGULATIONS

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

B. When the contract documents call for materials or construction of a better quality or larger size than required by the above-mentioned rules and regulations, provide the quality and size required by the contract documents.

C. 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.

1.8 TESTING

A. Notify the Contracting Officer’s Representative (COR) five working days in advance of testing.

B. Subject pipelines jointed with rubber gaskets or threaded connections to a pressure test after partial completion of backfill. 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, subject to the review of the COR.

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

E. Volumetric Leakage Test – Gasketed Mainline Pipe:

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

2. Purge all air from the pipeline before test.

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3. Subject mainline pipe to the anticipated operating pressure of 100 PSI for two hours.

Maintain constant pressure. The amount of additional water pumped in during the test will not exceed:

a. 0.62 gallons per 100 joints of 3-inch diameter pipe

b. 0.80 gallons per 100 joints of 4-inch diameter pipe

c. 1.18 gallons per 100 joints of 6-inch diameter pipe

d. 1.53 gallons per 100 joints of 8-inch diameter pipe

e. 1.93 gallons per 100 joints of 10-inch diameter pipe

4. Replace defective pipe, fitting, joint, or appurtenance. Repeat the test until the pipe passes test.

5. Cement or caulking to seal leaks is prohibited.

F. Operational Test – ARV Valves:

1. Activate master remote-control valves from the satellite controller, via the handheld units, and through the central controller. Manual operation of the valves from the bleed valve on the remote-control valve is not an acceptable method of activation. The Contracting Officer’s

Representative will visually observe operation, and for leakage.

2. Replace defective ARV valves, or appurtenance to correct operational deficiencies.

3. Replace defective pipe, fitting, joint, valve parts, or appurtenances to correct leakage problems. Cement or caulking to seal leaks is prohibited.

4. Repeat test(s) until each component passes all tests. Repeat tests, replace components, and correct deficiencies at no additional cost to the Government.

G. Acceptance Test Prior to Final Inspection:

1. Upon completion of construction and prior to Final Inspection, an Acceptance Test must be passed.

2. Coordinate start of Acceptance Test with Contracting Officer’s Representative (COR).

3. During the Acceptance Test, 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 will start again. If a system fault occurs, make repairs within 72 hours of notification from COR.

Document any faults in the proof of test report listing date of fault, fault, cause of the fault and the corrective action taken.

4. When the system has operated for 14 days without fault, contact the COR to schedule Final

Inspection.

1.9 CONSTRUCTION REVIEWS

A. The purpose of on-site reviews by the Contracting Officer’s Representative (COR) is to periodically observe the work in progress, the Contractor's interpretation of the construction documents, and to address questions with regard to the installation.

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1. Schedule reviews for irrigation system layout or testing with the COR as required by these specifications.

2. Impromptu reviews may occur at any time during the project.

3. A Final Inspection will occur at the completion of the irrigation Acceptance Test. The intent of the Final Inspection is to verify that all installation; testing; maintenance and operation submittals; and project record drawing submittals are completed prior to the start of the

Maintenance and Warranty periods.

1.10 WARRANTY

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

B. Warranty irrigation materials, equipment, and workmanship against defects for a period of one year from Final Acceptance.

C. Fill and repair depressions. Restore landscape, utilities, structures, or site features damaged by the settlement of irrigation trenches or excavations.

D. Repair damage to the premises caused by construction or a defective item. Make repairs within

72 hours of notification from COR.

E. Replace damaged items with identical materials and methods per contract documents or applicable codes. Make replacements at no additional cost to the Government.

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

G. Provide all manufacturers’ and supplier's written guarantees and warranties covering materials and equipment furnished under this Contract.

1.11 REMOVAL, REPAIR AND REINSTALLATION

A. Remove existing ARV valves, and other irrigation components as indicated on the Drawings.

Remove items in a manner that minimizes damage to the components and cap pipe and fittings.

Repair and reinstall the ARV valves as indicated on the Drawings. Replace ARV valves with new

ARV valves of the same type at no additional cost to the Government when effective repair cannot be provided. Properly dispose of other demolished components offsite.

B. Abandon existing decommissioned irrigation pipe in place. If existing irrigation pipe is encountered during installation of new irrigation pipe, cut, and remove 6-inches of existing irrigation pipe on either side of new irrigation pipe.

1.12 GENERAL CONSTRUCTION REQUIREMENTS

A. Coordinate construction of irrigation system with Contracting Officer’s Representative (COR) and

Cemetery Staff. Coordinate temporary shut-down of existing system with Cemetery Staff prior to construction. Disturbance to cemetery operations must be minimized. See irrigation plans and installation details for required coordination efforts related to the installation of specific irrigation components.

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B. The new irrigation system must be completely compatible, with no exceptions, to the existing irrigation system. Notify the COR if non-compatibility is discovered during construction.

C. Control of Excavations: See Section 3.3 for safety and access directions.

D. Coordinate installation of new ARV valve assemblies with connection to the existing irrigation system so that water availability to the existing irrigation system is not disrupted. Provide temporary piping and connections as required per the approved shop drawings.

E. Install irrigation components in landscaped areas only.

F. Construction cannot proceed unless staking of new irrigation ARV valve locations are reviewed and accepted by the COR.

PART 2 - MATERIALS

2.1 QUALITY

A. Provide new materials without flaws or defects.

2.2 SUBSTITUTIONS

A. Unless noted otherwise, provide specified equipment to match existing equipment. Contracting

Officer’s Representative must approve equipment prior to construction. The Contactor through written request prior to purchase or installation may request substitutions to the acceptable manufacturer listed herein. Changes and associated design costs to accommodate alternative equipment are the Contractor’s to bear.

B. Pipe sizes referenced in the construction documents are minimum sizes and may be increased at

Contractor’s option at no additional cost to the Government. Changes and associated design costs to accommodate larger pipe sizes are the Contractor’s to bear.

2.3 PIPE AND FITTINGS

A. Pipe:

1. Rigid, unplasticized polyvinyl chloride (PVC) 1120, 1220 National Sanitation Foundation

(NSF) approved pipe, extruded from material meeting the requirements of Cell Classification

12454-A or 12454-B, ASTM Standard D1784, with an integral belled end.

2. Irrigation Mains [75 mm (3-inch) and larger]:

a. Polyvinyl Chloride (PVC) Pressure Pipe conforming to AWWA Standard C900 for pipe sized 3-inch to 12-inch. Class 200, SDR-21, rated at 200 PSI, conforming to dimensions and tolerances established by ASTM Standard D2241 for pipe sized less than 4-inch.

Pipe shall conform to outside diameters of AWWA C151 cast iron pressure pipe to accommodate cast iron fittings.

b. Rubber-gasketed pipe equipped with factory installed reinforced gaskets for mainline pipe. Gasketed pipe joints must conform to the “Laboratory Qualifying Tests” section of

ASTM D3139. Gasket material must conform to ASTM F477.

3. Irrigation Mains [63.5 mm (2-1/2-inch) and smaller]:

a. PVC, Schedule 80, solvent welded socket type, ASTM D1785.

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4. Threaded Pipe (For use on ARV assembly):

a. Electroplated Steel Dielectric Nipples with inert noncorrosive lining, PEX or propylene, 300 PSI, ASTM A53, ANSI B1.20.1 and ASTM F492-95, or ASTM F1545.

b. Galvanized-Steel Pipe Nipples: ASTM A 733, made of ASTM A 53/A 53M or ASTM A

106/A 106M, Standard Weight, seamless-steel pipe with threaded ends.

c. Galvanized, Gray-Iron Threaded Fittings: ASME B16.4, Class 125, standard pattern.

5. Pipe (For use on Flush Valve assembly)

a. Schedule 80 PVC, 2 in. dia., ASTM D2466; NSF 14; NSF 61.

B. Fittings:

1. Irrigation Mains [75 mm (3-inch) and larger]:

a. Ductile Iron and PVC Pipe: Provide ductile iron fittings conforming to ANSI A 21.10

(AWWA C110) and ANSI A21.11 (AWWA C111) or flanged fittings conforming to

ANSI/AWWA C110 and ANSI B16.1 850 kPa (125 psig). All fittings shall be installed with retainer glands designed for the pipe material and shall be manufactured with twist off screws that sheer off at the proper force to anchor the retainer gland to the pipe at the pressure rating for the pipe, or at the test pressure for the pipe, whichever is higher, without causing damage to the pipe.

b. Push-on rubber-gasketed ductile iron fittings with gasketed joints conforming to ASTM

A536 and ASTM F477. Acceptable manufacturer for ductile iron fittings is ‘Leemco’ or approved equal.

2. Irrigation Mains [63.5 mm (2-1/2-inch) and smaller]:

a. PVC, Schedule 80, solvent welded socket type fittings, ASTM D2466.

3. PVC Long Sweep Elbow (for Flush Valve Assembly):

a. 90 Degrees Long Sweep Elbow: 2 in. x 2 in. Fitting Pipe Size, PVC Schedule 80, FS x

FS; 280 PSI; ASTM D2466; NSF 14; NSF 61.

4. PVC Outlet (for Flush Valve Assembly):

a. Male Adapter: 2 in. x 2 in. Fitting Pipe Size, PVC Schedule 80, FS x FS; 280 PSI; ASTM

D2466; NSF 14; NSF 61.

b. Threaded Cap: 2 in. Fitting Pipe Size, PVC Schedule 80, FT; 280 PSI; ASTM D2466;

NSF 14; NSF 61.

5. Heavy-Duty Lay Flat Discharge Hose (for Flush Valve Assembly):

a. 2 in. x 50’ length flexible polyester-reinforced PVC Hose with female brass swivel inlet and male Aluminum discharge end connections; Working pressure 90 psi.

b. Provide one (1) discharge hose and turn over to the Cemetery.

C. Jointing Materials:

1. Irrigation Mains [75 mm (3-inch) and larger]: Rubber gaskets, AWWA C111.

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2. Irrigation Mains [63.5 mm (2-1/2-inch) and smaller] and Laterals: Provide Schedule 40, Type

1, PVC solvent weld fittings conforming to ASTM Standards D2466 and D1784 for PVC pipe.

Provide primer approved by pipe manufacturer. Solvent cement shall conform to ASTM

Standard D2564 and be approved by pipe manufacturer.

3. Threaded pipes: Provide only Teflon-type tape or Teflon based paste pipe joint sealant on plastic threads or as recommended by pipe manufacturer. Provide non-hardening, non-toxic pipe joint sealant formulated for use on water-carrying pipes on metal threaded connections.

G. Pipe Lubricant: As approved by the gasketed pipe and gasketed ductile iron fitting manufacturer.

2.4 PIPE AND FITTING RESTRAINTS

A. Joint Restraints:

1. Mechanical joints conforming to ANSI A21.10 (AWWA C110) and ANSI A21.11 (AWWA

C111) or flanged fittings conforming to ANSI/AWWA C110 and ANSI B16.1 (125#).

B. Joint Restraint Harness:

1. Provide a joint restraint harness wherever joints are not positively restrained by flanged fittings.

2. Provide a joint restraint harness with transition fittings between metal and PVC pipe.

3. Provide bolts, nuts, retaining clamps, all-thread, or other joint restraint harness materials that are stainless steel. Provide retainer conforming to ASTM A536. Provide high strength, low alloy steel bolts and connecting hardware conforming to ANSI/AWWA C111/A21.11.

4. Acceptable manufacturer is ‘Leemco’ or approved equal.

C. Saddle Taps:

1. Double stainless-steel straps with painted steel saddle for installing ARV (air and vacuum & air release) valve on 3-inch and larger pressure mainlines. Size as required for application.

2. Acceptable Manufacturer: ‘Romac’ or approved equal.

2.2 MAINLINE COMPONENTS

A. Air and Vacuum Release Valve (ARV) Assembly:

1. Continuous acting ARV valve as presented in the installation details.

2. Cast Iron body with epoxy coating, polypropylene float, glass fiber reinforced nylon kinetic float, Buna-N seals and O-rings, stainless steel nuts and bolts, pressure range 5 PSI to 150

PSI. Acceptable Manufacturer: ‘Crispin’ model AL20 or approved equal.

3. Provide dielectric steel nipples for connections from tapping saddle through the ARV valve.

B. Shut-off Valve: Valve installation shall be as presented in the installation details.

1. Underground Shut-Off Valves: Provide one or more of the following based upon project specific conditions.

a. Resilient Wedge Gate Valves [50 mm (2 inches)]: Class 350 Ductile Iron per ASTM A536, Grade 65-45-12, AWWA C509; 250 PSI; interior and exterior surfaces shall be fusion epoxy coating 12-14 mil thickness ANSI/AWWA C116/A21.16-09, NSF 61 & CSA

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Z245.20-98; Gate valves shall be available in spigot x bell and bell x bell models to mechanically connect to fittings or plastic pipe. Valve bell end shall be deep bell, gasket and equipped with cast joint restraint clamps to securely fasten to plastic pipe. Restraints shall have blunt cast serrations. Restraint hardware 304 stainless steel; gaskets high grade EPDM rubber ANSI/AWWA C111/A21.11, rib-enforced design; 4-inch IPS shroud for pipe access sleeve. Acceptable Manufacturer: ‘Leemco’ LMV Series, Model LMV-

11BB, or approved equal.

b. Stainless Steel Ball valves [50 mm (2 inches) and smaller]: Full port ball valve with threaded ends, minimum 400 PSI CWP rating, stainless steel bodies and end pieces

RPTFE seats and seals, blow-out proof stem design, stainless steel ball, with stainless steel handle and nut. Size same as pipe on which it is installed. Acceptable

Manufacturer: ‘Apollo’ 76F Series or approved equal.

c. Bronze or brass body Ball Valves [50 mm (2 inches) and smaller]: Full port ball valve with threaded ends, minimum 400 PSI CWP rating, forged brass and cast bronze bodies and end pieces RPTFE seats and seals, blow-out proof stem design, chrome-plated brass ball, with stainless steel handle and nut. Size same as pipe on which it is installed.

Install with galvanized steel dielectric nipples with PEX liner on both sides of the ball valve. Acceptable Manufacturer: ‘Apollo’ 77 Series or approved equal.

C. Vaults:

1. Air and Vacuum Release Valve Assembly Vaults:

a. Polymer concrete composite material and with matching solid polymer lid. Lids shall be custom ordered to be marked with letters identifying the ARV and associated controller number, (i.e., ARV-A; ARV-B; ARV-C, etc.).

b. Vaults must house specified equipment with minimum 3" clearances on all sides.

c. Vault Dimensions: (24"x24", 36" depth)

d. Lids: 2424-Flush Solid Polymer lid with custom marking plate marked with "ARV +

(Letter designation)"; Standard Bolt-down Fasteners with Hex Head.

e. Acceptable Manufacturer: 'Oldcastle'; Acceptable Product: 2424 Series- Model 2424-36 or approved equal.

2. Flush Valve Assembly Vaults

a. Polymer concrete composite material and with matching solid polymer lid. Lids shall be custom ordered to be marked with letters identifying the GV (for Gate Valves), and FV

(for Flush Valves).

b. Vaults must house specified equipment with minimum 2" clearances on all sides.

c. Vault Dimensions: (9" diameter, 12" depth)

d. Lids: 9-inch diameter-Flush Solid Polymer lid with custom marking plate marked with

"GV" and “FV”; Standard Bolt-down Fasteners with Hex Head.

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e. Acceptable Manufacturer: 'Oldcastle'; Acceptable Product: FL08 Series - Model 9’ Dia or approved equal.

D. Accessories:

1. Drainage backfill: 3/4-inch crushed aggregate, no fines.

2. Filter Fabric: Spunbond polyester 3.5 oz. per square yard landscape fabric

3. Vault Support blocks: Brick or concrete cap block.

4. Pipe Bedding: 3/4-inch minus crushed aggregate per NMDOT standard specifications (latest edition).

2.2 OTHER COMPONENTS

A. Tools and Spare Parts: Provide operating keys, servicing tools, spare parts and other items indicated in the General Notes of the drawings.

B. Other Materials: Provide other materials or equipment shown on the drawings or installation details that are part of the irrigation system, even though such items may not have been referenced in these specifications.

PART 3 - EXECUTION

3.1 INSPECTIONS AND REVIEWS

A. Site Inspections:

1. Verify construction site conditions and note irregularities affecting work of this section.

Report irregularities to the Contracting Officer’s Representative (COR) prior to beginning work.

2. Beginning work of this section implies acceptance of existing conditions.

B. Utility Locates ("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 modifications during this review.

3.2 LAYOUT OF WORK

A. Field verify location and size of existing irrigation piping where modifications are to be made, prior to staking out of new system components.

B. Stake out the irrigation system. Items staked include air and vacuum release valve assemblies, Flush Valves, and quick couplers.

C. If staked irrigation components conflict with utilities or other components or site features, coordinate rerouting of components with COR.

3.3 EXCAVATION, TRENCHING, AND BACKFILLING

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

B. Existing Survey Markers:

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.

C. Minimum cover:

1. Match existing as required to make connections unless otherwise noted.

2. 36-inches over irrigation mainline pipe in landscaped areas. (Distance from top of pipe to finish grade.)

3. 18-inches vertical separation between lateral and mainline pipe installed in a common trench.

D. Install and maintain safety fencing around all unattended excavation. Place safety signs adjacent to construction area roadway to the satisfaction of the Contracting Officer’s Representative

(COR).

E. All excavations must be backfilled by the end of each workday unless securely fenced to the satisfaction of the COR. Do not leave any open trenches overnight, on weekends or on holidays.

F. 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.

G. 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.

H. Backfill mainline pipe in turf areas in the following manner:

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

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

J. Where irrigation components are installed in existing landscaped areas, backfill to original grade.

K. Where utilities conflict with irrigation trenching and pipe work, contact the COR for trench depth adjustments.

3.4 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.

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B. Mainline Pipe and Fittings:

1. Plastic Pipe and Fittings:

a. Shall be snaked in trench at least 1 meter to 100 meters (1 foot per 100 feet) to allow for thermal construction and expansion and to reduce strain on connections.

b. Joints:

1) Solvent Welded Socket Type: ASTM D2855.

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

3) Elastomeric Gasket: ASTM F477.

a) Immediately before joining two lengths of PVC pipe, the inside of the bell or coupling, the outside of the spigot and the elastomeric gasket shall be thoroughly cleaned to remove all foreign material.

b) End of pipe shall be beveled to allow for ease of installation. Remove burrs.

c) Lubrication of the joint and rubber gasket shall be done in accordance with the pipe manufacturer's specifications.

d) Care shall be taken that only the correct elastomeric gasket, compatible with the annular groove of the bell, is used. Insertion of the elastomeric gasket in the annular groove of the bell or coupling shall be in accordance with the manufacturer's recommendations. Pipe that is not furnished with a depth mark shall be marked before assembly to assure that the spigot end is inserted to the full depth of the joint.

e) The spigot and bell or coupling shall be aligned and pushed until the reference line on the spigot is flush with the end of the bell or coupling. Pushing shall be done in a smooth, steady motion.

2. Ductile Iron Pipe and Fittings:

a. Installation: AWWA C600.

b. Joints:

1) Mechanical: AWWA C111. Provide sufficient quantities of bolts, nuts, glands and gaskets for each socket opening on pipe and fittings.

2) Push On: Apply thin film of lubricant to gasket and place in proper position in contour of bell. Insert beveled end of joining pipe and make contact with gasket. Force beveled end of pipe to bottom of bell without displacing gasket. Do not caulk. Provide only lubricant furnished by manufacturer of pipe.

3) Flanges: AWWA C115. Install only in concrete pits. Make watertight and set not less than 150 mm (6 inches) from walls or floor.

C. Joint Restraint Harness:

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1. Install harness in the manner recommended by the manufacturer and in accordance with accepted industry practices.

3.5 INSTALLATION OF AIR AND VACUUM RELEASE VALVES

A. Air and Vacuum Release Valve (ARV) Assembly:

1. As presented in the installation details, per manufacturer’s instructions.

2. Install where indicated in the irrigation plans.

3. Plumb the valves and position vaults so that the vault does not rest on the mainline piping.

4. Install valves underground in a new polymer concrete vault with adequate room and clearance for servicing the valve per manufacturer’s specifications.

5. Replace tapping saddle or fitting as required.

6. Provide galvanized steel nipples and stainless-steel gate valve upstream of ARV valve.

7. Plumb ball valve upstream of ARV valve.

8. Plumb outlet of ARV valve with galvanized steel elbows to divert water onto side of vault or provide manufacturer’s protection top for diverting water and preventing debris from entering valve.

9. Install Flush Valve downstream, of ARV valves installed at dead ends on mainline pipe as shown on the Drawings. Final location Flush Valve to be approved by COR in the field.

3.6 INSTALLATION OF FLUSH VALVE ASSEMBLIES

A. Flush Valve Assembly:

1. As presented in the installation details consisting of a gate valve and piping to allow discharge of water and debris from mainline.

2. Install where indicated in the irrigation plans: downstream of ARV valves, and at dead ends on mainline pipe as shown on the Drawings.

3. Plumb the valves and position vaults so that the vault does not rest on the mainline piping.

4. Install ductile iron isolation valves underground with a PVC pipe shroud to prevent soil intrusion. House pipe shroud in a new polymer concrete vault with adequate room and clearance for operating the valve.

5. Provide Sch. 80 PVC Sweep Elbow with concrete thrust block immediately upstream of Flush valve outlet to prevent large debris from clogging pipe.

6. Provide threaded PVC end cap and fitting at end of Flush valve.

3.7 CONCRETE VAULT INSTALLATION

A. Install precast polymer concrete vault according to ASTM C891 and in accordance with the manufacturers printed instructions.

1. Position vaults so that the vault does not rest on the mainline piping. Set vault on bricks or concrete caps continuous under the vault to prevent shifting or settling of vault.

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2. Where unsuitable soil is found at setting elevation for the vault, remove 6-inhces minimum of unsuitable soil and replace with crushed aggregate road base compacted to 90 percent relative density per ASTM D-1557.

3. Provide filter fabric wrapped underneath and up sides of vault to prevent soil intrusion into vault.

4. Backfill vault bottom with 2 cubic feet minimum of drainage backfill.

3.8 INSTALLATION OF OTHER COMPONENTS

A. Tools and Spare Parts:

1. Prior to the Review at completion of construction, provide operating keys, servicing tools, spare parts, and any other items indicated on the drawings.

B. Other Materials: Install other materials or equipment shown on the drawings or installation details that are part of the irrigation system, even though such items may not have been referenced in these specifications.

3.9 MAINTENANCE AND OPERATION INSTRUCTIONS

A. Irrigation System Maintenance:

1. Provide three (3) copies of user technical manuals containing irrigation operation and maintenance information in a 3-ring binder with table of contents and index sheet. Provide sections that are indexed and labeled. Provide the following information:

a. Catalog cut sheets for valves, pipe and fittings, shop drawings, and all other irrigation equipment shown or described on the drawings and within these specifications.

b. Manufacturer’s Operation and Maintenance manuals.

c. Manufacturer’s Technical Service Bulletins.

d. Manufacturer’s Warranty Documentation.

e. 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.

f. Predictive schedule for component replacement.

g. Listing of technical support contacts.

2. Operation and maintenance submittal package must be complete prior to being reviewed by the Contracting Officer’s Representative. Incomplete submittals will be returned without review.

3.10 PROJECT RECORD DRAWINGS

A. The Contractor is responsible for documenting installed system and all changes to the design.

Maintain on-site and separate from documents used for construction, one complete set of contract documents as Project Record Documents. Keep documents current. Do not permanently cover work until as-built information is recorded.

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B. Record irrigation components, pipe and wiring network alterations. Record work that is installed differently than shown on the construction drawings. Record accurate reference dimensions, measured from at least two permanent reference points for each irrigation system valve, and other irrigation components enclosed within a vault/valve box.

C. Prior to project completion label each sheet of the project drawings (redlines) as “Record

Drawing" and turn over to Contracting Officer’s Representative for delivery to Engineer.

Completion of the Record Drawings is a prerequisite for Final Inspection.

3.11 REPAIR

A. Restore surrounding ground conditions to original condition. Fine grade soil to remove irregularities and abrupt changes in grade. Rake soil to remove stones, rocks, vegetation, foreign matter, and other deleterious material greater than 1/2-inch in diameter from the surface soil.

B. Seed areas disturbed by construction with 100 percent Kentucky Bluegrass grass seed (3-way blend) at a rate of 10 lbs/ 1000 sq-ft. Top seed with compost or commercially blended seed topper and irrigate thoroughly.

3.12 CLEANUP

A. Upon completion of work, remove from the site all machinery, tools, excess materials, and rubbish. Restore site to normal or original condition.

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