2-24-028 Specifications Beautification Projects.pdf

Exterior Improvements

Orem City Beautification Projects

DIVISION 32

EXTERIOR

IMPROVEMENTS

UNDERGROUND IRRIGATION SYSTEMS 32 84 23

Orem City 32 84 23 - 1 Beautification Projects

SECTION 32 84 23

UNDERGROUND IRRIGATION SYSTEMS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including Supplemental General Conditions and Special Provisions, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Trenching and stockpiling excavation materials and refilling trenches.

2. Installation of complete irrigation system including but not limited to point of connection, meter, filters, piping, valves, fittings, emitters, controllers, and wiring and final adjustments to ensure complete coverage.

3. Water connections.

4. Clean up, inspection, and approval.

5. Testing.

B. Related Sections include the following:

1. Section 32 92 00 Turf and Grasses

2. Section 32 93 00 Exterior Plants

1.3 DEFINITIONS

A. Finish Grade: Elevation of finished surface of planting soil.

B. Subgrade: Surface or elevation of subsoil remaining after completing excavation, or top surface of a fill or backfill immediately beneath planting soil.

C. Mainline: The system of pipes that carry water from the Point of Connection (POC) to the valves.

D. Lateral Lines: The system of pipes that carry the water from the valves to the sprinkler heads or emitters.

E. Point of Connection (POC): The point at which the Contractor will tie into the water supply.

F. Water Supply: Culinary or secondary piping and components furnished and installed by others to provide irrigation water to the Project.

1.4 SUBMITTALS

A. Product Data: Manufacturer’s cut sheets for each type of product indicated.

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B. As-Built Drawings: Red-lined plan layout and details illustrating mainline and lateral lines location, size, and assembly. Include type and coverage of heads, type of valves, controllers, fittings and accessories.

C. Operation and Maintenance Data:

1. Instructions covering full operation, care, and maintenance of system and controls and manufacturer’s printed literature on operation and of system. Include winterizing, controller program worksheet, and annual service and scheduling calendar based on local site specific conditions.

2. Instruct maintenance personnel in proper adjustment of sprinkler heads and use of special tools for adjustments.

3. Provide one controller chart for each automatic controller installed.

a. Show area covered by each controller on print of “as-built” system.

b. Identify area of coverage of each remote control valve, using a distinctively different color, drawing over the entire area of coverage.

c. Hermetically seal charts between two layers of 20 mm thick plastic.

d. Complete charts and review prior to final review of irrigation system.

D. Keys:

1. Quick Coupler Key: Quick Coupler Key with Swivel Head for operation of quick couplers (if any).

2. Stop and Waste Valve Key: “T” handle, rigid steel, 5 ft long minimum, key end to fit the stop and waste valve nut.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Deliver, unload, store, and handle materials, packaging, bundling, and products in dry, weatherproof, waterproof condition in manner to prevent damage, breakage, deterioration, intrusion, ignition and vandalism. Deliver in original unopened packaging containers prominently displaying manufacturer name, volume, quantity, contents, instructions and conformance to local, state and federal law. Remove and replace cracked, broken or contaminated items or elements prematurely exposed to moisture, inclement weather, temperature extremes, fire and/or jobsite damage.

B. Storage:

1. Protect materials from damage and prolonged exposure to sunlight. Materials shall be stored in areas designated by the Owner.

C. Handling:

1. Materials: Except for bulk deliveries, materials shall not be dropped or dumped from vehicles. All material shall be handled by Contractor with care to avoid breakage or damage. Damaged materials attributed to the Contractor shall be replaced with new material at the Contractor’s expense.

2. Handling of PVC Pipe - Exercise care in handling, loading and storing of PVC pipe.

Transport all PVC pipe in a vehicle that allows length of pipe to lie flat so as not to subject it to undue bending or concentrated external loads. Discard all sections of pipe that have been dented or damaged and, if installed, replace with new piping at the Contractor’s expense.

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1.6 SCHEDULING

A. The Contractor shall familiarize himself with all hazards and utilities prior to work commencement. Install sleeving prior to installation of concrete, paving or other permanent site elements. Irrigation system Point of Connection components, backflow prevention or filtration, and pressure regulation devices shall be installed and operational prior to all downstream components. All main lines shall be thoroughly flushed of all debris prior to installation of Remote Control Valves. All lateral lines shall be thoroughly flushed of all debris prior to installation of any sprinkler heads. Irrigation Contractor shall be required to submit detailed Construction Schedule to Owner prior to commencement.

Schedule shall be updated weekly.

B. Contractor shall schedule and organize work to minimize impact on project usage during public hours. Contractor shall confine work efforts to areas or zones which he can reasonably fence or protect, rather than spreading out trenching or other tasks across large areas of the site. Contractor shall schedule his work to reduce or eliminate open trenches at the end of each work day.

C. Weather Limitations: Proceed with irrigation installation only when existing and forecasted weather conditions permit.

PART 2 - PRODUCTS

2.1 PIPES AND FITTINGS

A. Types of Pipes:

1. Supply Line – from Point of Connection through backflow preventer or filter – galvanized pipe as detailed.

2. Mainline 3” or smaller – downstream of POC – Schedule 40 PVC.

3. Mainline 4” or larger – downstream of POC - Class 200 PVC

4. Lateral – Schedule 40 PVC.

5. Drip Tubing – Rain Bird XT-700 (where required).

6. Inline Drip – Per plans (where required).

7. Emitter Tubing – Per plans (where required).

B. Pipe

1. Plastic Pipe Schedule 40 and Class 200 PVC – Identify all pipes with following indelible markings:

a. Manufacturer’s name.

b. Nominal pipe size.

c. Schedule of class.

d. Pressure rating psi.

e. National Sanitation Foundation (NSF) seal of approval.

f. Date of extrusion.

2. Drip Tubing – Manufactured of flexible polyvinyl chloride compound conforming to ASTM D1248, Type 1, Class C, Category 4, P14 and ASTM D3350 for PE 122111C.

C. Types of Fittings:

1. Mainline Fittings smaller than 3” – Schedule 80 PVC.

2. Mainline Fittings 3” or larger – Harco ductile iron (restrain per manufacturer’s recommendations).

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3. Lateral Fittings – Schedule 40 PVC.

4. Drip Fittings – Barbed insert type fittings

2.2 VALVES

A. Stop & Waste Valve – Per Plans.

B. Mainline Isolation Valve – Per Plans.

C. Master Valve – Per Plans.

D. Manifold Isolation Valve – Per Plans.

E. Remote Control Valve(s) – Per Plans.

F. Manual Drain Valve – Per Plans.

2.3 BACKFLOW PREVENTER

A. Backflow Preventer – Per Plans.

B. Install in Enclosure specified in irrigation legend.

2.4 AUTOMATIC CONTROLLER

A. Irrigation Controller with Flow Sensing – Per Plans.

2.5 DRIPLINE

A. Per Plans.

2.6 DRIP FLUSH VALVE

A. RainBird BLAL501-S.

B. Hunter Eco-Indicator at end of all drip lines.

2.7 VALVE BOX

A. Install control valves in manifolds/boxes per drawings.

B. Use round valve box for quick coupler. All boxes and lids in lawn and bark mulch beds shall be GREEN in color. All boxes and lids in rock mulch beds shall be TAN in color.

2.8 WIRE

A. Wire connecting valves to the automatic controller shall be Rain Master TW-CAB-14 wire.

Two-conductor, 14-gauge, solid-core copper wire, double-jacketed insulation manufactured

Orem City 32 84 23 - 5 Beautification Projects of high-density, sunlight-resistant polyethylene or UF-B UL PVC with a minimum wall thickness of 060” (1.5mm). A protective outer sheath must be manufactured of polyethylene or PVC material conforming to ICEA S-GL-402 or NEMA WC5, with a minimum wall thickness of .045” (1,2mm) and approved for direct burial installation.

B. Install two-wire in 1” grey electrical conduit.

C. Make all connections with 3M-DBRY to make a waterproof connection.

D. Wire connecting flow sensor to the automatic controller shall be Paige Electric PE-39-3 Cable.

1. Install wire in 1” conduit. Bury wires in the same trench as the pipe where possible.

2. Make all connections with 3M-DBRY to make a waterproof connection.

2.9 QUICK COUPLER

A. Rainbird 44-LRC

2.10 WASHED AGGREGATE

A. 1-1/2” maximum with 100 percent retained on a No. 4 sieve.

2.11 JOINT AND SOLVENT CEMENT

A. Primer: Weld-On P-70 Primer

B. PVC Solvent Cement: Weld-On 711 Low VOC Cement

2.12 TEFLON TAPE

A. Use quality grade, domestically made 0.004 inch ( 0.001) on threaded joints.

2.13 SLEEVES

A. Class 200 PVC.

B. Install one pipe per sleeve. Sleeve diameter shall be two (2) times larger than pipe installed in sleeve. Minimum 4” for all sleeves.

C. Install wiring in separate sleeve from irrigation pipe.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas to receive irrigation to insure areas are ready and properly prepared.

Complete demolition and grading operations, with the exception of final grading, and receive approval by Owner before staking or installation of any irrigation system begins.

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B. Contractor shall field verify all existing and proposed utilities, trees, plants, buildings, structures, roads, curb and gutter, sidewalks, irrigation system, utilities, easements, setbacks, Right-of-ways, etc. to make sure no conflicts exist between existing conditions and proposed plans. Contractor shall be responsible to make on-site field adjustments as may be required due to discrepancies found during construction. Because a survey of current conditions was not completed as part of this project, the Contractor and Owner agrees to hold blu line design harmless for any and all such discrepancies including costs associated with such discrepancies, including repair, replacement or anything related to such discrepancies.

3.2 EXCAVATION

A. Stake pipe and equipment locations as follows:

1. Mark routing of pressure supply line and flag remote control valves for first few zones. Contact Owner’s Representative a minimum of 48 hours in advance and request review of staking. Owner’s Representative will review staking and direct changes if required.

2. If Project has significant topography, free-form planting beds, or other amenities that could require alteration of irrigation equipment layout as deemed necessary by Owner, do not install irrigation equipment in these areas until Owner’s Representative has reviewed equipment staking.

3. Trenching - Dig trenches straight and support pipe continuously on bottom of trench.

Clean trench bottom and smooth by removing all rock and organic debris. Remove rocks larger than 1-1/2” in any direction from bottom of trench.

a. Clearances:

1) Piping Smaller than 3 Inches - Minimum width of 7 inches for trenches.

2) Line Clearance - Provide not less than 6 inches of clearance between each line.

b. Pipe and Wire Depth:

1) Mainline Piping – 18 inches from top of pipe.

2) Lateral Piping – 12 inches from top of pipe.

3) Control Wiring – Side of mainline piping (in conduit).

B. Excavate trenches for sprinkler system pipe to provide 18 inches of cover over mainlines and 12 inches over lateral lines.

1. Do not damage roots where trenching is required in proximity to trees that are to remain.

C. Appropriately cover, protect, and mark trenches along pedestrian routes that are left open overnight.

3.3 INSTALLATION

A. General: Plans are diagrammatic. Proceed with installation in accordance with the following:

1. Install stop and waste valve and other equipment required by local authorities according to Utah Laws and Regulations to make system complete.

2. Install main line, automatic control valves, lateral lines, fittings, and heads/drip line as specified.

3. Thoroughly flush main lines before installing automatic control valves, and laterals before installing sprinklers. Flush supply lines thoroughly before installing backflow preventers or other regulating devices.

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B. Piping: Assemble all mainline and lateral lines in accordance with manufacturer’s recommendations.

1. Install PVC pipe in dry weather above 40 degrees F as specified by manufacturer's recommendations. Allow joints to cure a minimum of 8 hours before testing.

2. Snake pipe in trench as much as possible to allow for expansion and contraction.

When pipe laying is not in progress, or at end of each day, close pipe ends with tight plug or cap. Perform work in accordance with good practices prevailing in irrigation industry.

3. Shield pipe from direct sunlight so that expansion and contraction do not affect the integrity of glued fittings. Temperature swings from daytime to night time can cause pipe to completely pull out of glued fittings. Consult with the manufacturer for proper shielding of PVC pipe before installation and provide the Owner with the proposed method for shielding the piping.

4. Ensure that mainline and lateral lines don’t conflict with utilities, fire hydrants, light poles, underground sumps or storm drain and downspout piping or other utilities.

C. Sleeving:

1. Contractor to directionally bore sleeves per as needed.

2. Coordinate location of all sleeving prior to installation.

3. For sleeving under roadways install sleeving below the depth of the aggregate sub-base.

4. Install sleeving under asphalt paving and concrete walks to accommodate piping and wiring. Compact backfill around sleeves to prevent settling.

D. Control Valves:

1. Install at plan locations and according to detail. Use Schedule 80 PVC pipe for nipples on valve header, length as necessary. Install valves, one maximum per box, plastic valve box and provide 12 inches of expansion loop slack wire at all connections inside valve box.

E. Quick Coupling Valves: Install using 1 inch Schedule 80 PVC nipples and street ells as detailed. Locations as indicated on plans.

F. Valve Access Boxes:

1. Install over all automatic control valves, manual control valves, pressure regulators or zone shutoff valves and sized to provide adequate room for maintenance.

2. Install valve boxes 1” above finish grade and place parallel or perpendicular to adjacent curbs, sidewalks, or driveways.

3. Imprint a valve control number on each valve box cover that corresponds to the valve controller clock. Imprint the valve box number a minimum of one inch high in a permanent and legible manner.

4. Place washed aggregate in sump as shown on plans.

G. Automatic Controller:

1. Mount the panel enclosure so the operator can conveniently make adjustments.

2. Properly ground controller in accordance with Utah Laws and Regulations and per manufacturer's requirements. Make all control wire connections to automatic controllers. Coordinate controller installation with electrical work.

3. Provide a laminated copy of the irrigation plan indicating valve station numbers and field locations and attach it inside the controller.

4. Program the controller to provide the appropriate amount of water for each station.

5. Supply the Owner with manufacturer's warranties and operating instructions for the controller.

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6. Connect remote control valves to controller in numerical sequence as shown on Drawings.

H. Solvent Weld PVC Pipe - Lay pipe and make all plastic to plastic joints in accordance with solvent manufacturer's recommendations.

I. Drip Laterals:

1. Install all drip laterals per the plans before installation of mulch.

2. Install drip line blowout stubs at all dead ends of emitter laterals.

J. Control Wiring:

1. Low Voltage Wiring:

a. Bury control wiring between controller and electric valves in mainline trenches, strung as close as possible to main pipe lines with such wires to be consistently located below and to one side of pipe, or in separate trenches.

b. Install wiring in 1” conduit.

c. Provide an expansion loop at sleeve crossings for future phases and at every electric control valve location (in valve box). Expansion loop to have a minimum 3’ spare wire.

d. Make control wire connections and splices with 3M direct bury splice connectors, or approved equal.

e. Install all control wire splices not occurring at control valve in a separate splice valve box.

K. Dripline - Install all surface emitters as detailed and stake with acceptable tubing stakes.

L. Valves - Install where shown on Drawings as detailed.

3.4 TESTING

A. Notify the Owner a minimum of 48 hours in advance of pressure testing the main line.

B. Hydrostatic pressure test all supply and pressure irrigation lines by maintaining full supply line water pressure for three consecutive hours before backfilling and after air pockets have been vented from the lines.

C. Test connections for leaks prior to backfilling and repair all leaks. Lateral lines may be tested in sections to expedite backfilling work.

3.5 BACKFILL OPERATION

A. Bed all pipe a minimum of 2 inches, surrounding the pipe with native material excavated from the trench and passing through a ½ inch sieve.

B. Prevent soil, rocks, or debris from entering pipes or sleeves.

C. Compact backfilled trenches thoroughly to prevent settling damage to grades or plant materials. Repair irrigation system and plants at no additional cost to Owner.

D. Do not begin backfilling operations until required system tests have been completed.

Leave trenches slightly mounded to allow for settlement after backfilling is completed.

Finish grade trenches prior to walk-through of system by Owner.

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1. Materials - Excavated material is generally considered satisfactory for backfill purposes. Remove from backfill material all rubbish, organic matter, and stone larger than 2 inches in maximum dimension. Do not mix subsoil with topsoil.

Haul away all material not suitable for backfill. If excavated material is unacceptable or not sufficient to meet backfill, compaction and final grade requirements Contractor is responsible for providing suitable backfill.

2. Do not leave trenches open for a period of more than 48 hours. Protect open excavations in accordance with OSHA regulations.

3.6 IRRIGATION INSTALLATION INSPECTION

A. Examine areas and conditions under which Work of this Section is to be performed. Do not proceed with inspection walk-through until unsatisfactory conditions have been corrected.

B. Completely install entire system and ensure proper operation prior to scheduling of walk-through.

C. Notify Owner a minimum of 48 hours prior to walk-through.

D. Remotely operate each zone in for Owner’s Representative at time of walk-through.

E. Contractor to generate a list of items to be corrected.

F. Furnish materials and perform Work required to correct all inadequacies at no additional cost to Owner.

G. During walk-through, expose all drip emitters outlets for observation by Owner’s Representative to demonstrate that they are performing and installed as designed.

Schedule separate walk-through if necessary.

H. Adjusting

1. Upon completion of installation, "fine-tune" entire system to provide optimum and efficient coverage. Adjustments to be performed prior at no additional cost to Owner.

2. Immediately correct areas that do not conform to designated operation requirements due to unauthorized changes or poor installation practices at no additional cost to the Owner.

3.7 CLEANUP

A. Promptly remove soil and debris created by any work from paved areas. Clean wheels of vehicles before leaving site to avoid tracking soil onto roads, walks, or other paved areas.

END OF SECTION

TURF AND GRASSES 32 92 00

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SECTION 32 92 00

TURF AND GRASSES

A. Drawings and general provisions of the Contract, including Supplemental General Conditions and Special Provisions, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Sodding.

B. Related Sections include the following:

1. Section 32 93 01 Exterior Plants

1.3 DEFINITIONS

A. Finish Grade: Elevation of finished surface of planting soil.

B. Planting Soil: Native soil or surface soil modified to become topsoil; mixed with soil amendments.

C. Subgrade: Surface or elevation of subsoil remaining after completing excavation, or top surface of a fill or backfill immediately beneath planting soil.

1.4 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Certification of Bluegrass Sod: From sod producer - each grass-seed monostand or mixture stating the botanical and common name and percentage by weight of each species and variety, and percentage of purity, germination, and weed seed. Include the year of production and date of packaging.

1. Certification of sod mixture for turfgrass, identifying source, including name and telephone number of supplier.

C. Product Certificates: For soil amendments and fertilizers, signed by product manufacturer.

D. Material Test Reports: For existing surface soil and imported materials.

E. Planting Schedule: Indicating anticipated planting dates for each type of planting.

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1.5 QUALITY ASSURANCE

A. Soil-Testing Laboratory Qualifications: An independent laboratory, recognized by the State Department of Agriculture, with the experience and capability to conduct the testing indicated and that specializes in types of tests to be performed.

1. BYU Environmental Analytical Lab

2. QA Consulting and Testing LLC.

3. Utah State Agricultural Soil Testing Lab

B. Native Soil Analysis: Adhere to recommendations of soil analysis provided by lab.

C. Preinstallation Conference: Conduct conference at Project site as requested by the City.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Storage:

1. Materials shall be stored in areas designated by the Owner.

2. Fertilizers and other soil amendments shall be stored in cool, dry locations away from contaminants.

3. Chemical treatment materials shall not be stored with other landscape materials.

B. Handling:

1. Materials: Except for bulk deliveries, materials shall not be dropped or dumped from vehicles.

1.7 SCHEDULING

A. Weather Limitations: Proceed with planting only when existing and forecasted weather conditions permit.

1.8 FINAL ACCEPTANCE

A. Final Acceptance shall be issued to the Contractor for Sod areas per the following procedures:

1. Following substantial completion, the Owner will perform a final walk through to judge the completeness and quality of sod installation. This will include evaluating layout and location, health of grass, finished grading, irrigation, etc.

2. The Owner will provide a Punch List of items for the Contractor to remedy.

3. The Contractor shall notify the Owner when all punch list items are complete.

4. A Verification Walk will be performed by the Owner to verify all punch list items are adequately completed.

5. Based on a successful Verification Walk, the Owner will issue Final Acceptance to the Contractor and will take over all maintenance and care of sod. The one-year warranty will begin upon the date of Final Acceptance.

1.9 WARRANTY

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A. Special Warranty: Warrant the following exterior plants, for the warranty period indicated, against defects including death and unsatisfactory growth, except for defects resulting from lack of adequate maintenance, neglect, or abuse by Owner, or incidents that are beyond Contractor's control.

1. Warranty Period for Trees and Shrubs: One year from date of Final Acceptance.

2. Warranty Period for Ground Cover and Perennial Plants: One year from date of

Final Acceptance.

3. Remove dead exterior plants immediately. Replace immediately unless required to plant in the succeeding planting season.

4. Replace exterior plants that are more than 25 percent dead or in an unhealthy condition at end of warranty period.

5. A limit of one replacement of each exterior plant will be required, except for losses or replacements due to failure to comply with requirements.

PART 2 - PRODUCTS

2.1 SOD

A. Bluegrass Sod: Sod supplied by the Contractor shall be grown by a sod grower, well established, pest and weed free, one (1) and one quarter (1-1/4”) inches thick, and supplied in rolls or sheets of the industry size. Sod shall be the current year’s crop, guaranteed by the supplier as follows:

1. Bio Blue Bluegrass, as provided by BioGrass Sod Farms (801-562-9090) or approved equal.

2.2 ORGANIC SOIL AMENDMENTS

A. Compost: Dairy based organic compost material. Well-composted, stable, and weed-free organic matter, pH range of 5.5 to 8; moisture content 35 to 55 percent by weight;

100 percent passing through 1-inch sieve; soluble salt content of 5 to 10 decisiemens/m; not exceeding 0.5 percent inert contaminants and free of substances toxic to plantings; and as follows:

1. Organic Matter Content: 35%- 50% percent of dry weight.

2.3 TOPSOIL

A. Imported topsoil to meet the following:

1. Topsoil Quality Guidelines:

a. pH: 6.0-7.5

b. Soluble Salts dS/m or mmho/cm: <4

c. Sodium Absorption Ratio (SAR): <10

d. Organic Matter %: ≥5.0, <20

e. Sand %: >20,<70

f. Silt %: >20,<70

g. Clay %: >10,<30

h. Texture Class: Loam, Sandy Loam, Silt Loam or Sandy Clay Loam.

2. Topsoil free of:

a. Subsoils (no B or C horizon soils)

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b. Course sand and gravel

c. Stiff clay, hard clods, or hard pan soils

d. Rock larger than 1/2 inch in any dimension

e. Roots larger than 1/2 inch in diameter

f. Trash, litter, or refuse

g. Noxious weeds and weed seeds

3. Topsoil may contain a maximum of 5 percent rock smaller than 1 inch.

4. Material test reports shall provide amendment recommendations with minimum quality standards and volumes.

2.4 PLANTING ACCESSORIES

Selective Herbicides: EPA registered and approved, of type recommended by manufacturer for application.

2.5 FERTILIZER

A. Slow-Release Fertilizer: Sodded Lawns - Granular or pelleted fertilizer Biosol Mix 7-2-3 consisting of 50 percent water-insoluble nitrogen, phosphorus, and potassium in the following composition:

1. Apply at rate of 33 lbs./ 1000 SF for sodded lawn areas.

2. Composition: 7-2-3 Nitrogen, phosphorous, and potassium or in amounts recommended in soil reports from a qualified soil-testing agency.

B. Slow-Release Fertilizer: Seeded Lawns - Granular or pelleted fertilizer of slow release 16-16-16.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas to receive turfgrass sod and seed for compliance with requirements and other conditions affecting performance. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Protect structures, utilities, sidewalks, pavements, and other facilities, trees, shrubs, and plantings from damage caused by planting operations.

B. Provide erosion-control measures to prevent erosion or displacement of soils and discharge of soil-bearing water runoff or airborne dust to adjacent properties and walkways.

3.3 SOD BED PREPARATION AND INSTALLATION

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A. Limit subgrade preparation to areas to be planted. Sub-grade shall be scarified to a depth of four (4) inches to ensure proper bonding with applied topsoil if it has been compacted due weather or equipment.

B. Install 4” depth of imported topsoil that meet the requirements of this section.

C. Finish Grading: Grade planting areas to a smooth, uniform surface plane with loose, uniformly fine texture. Grade to within plus or minus 1/2 inch of finish elevation. Roll and rake, remove ridges, and fill depressions to meet finish grades. Limit fine grading to areas that can be planted in the immediate future.

1. The Installer shall prepare no more ground than can be sodded in a twenty-four

(24) hour period. Sod shall be placed within 24 hours of ground preparation. The ground shall be re-prepared if weather or traffic has compromised the friability of the prepared area.

2. No sodding shall be done immediately after a rain storm or if a prepared surface has been compacted without first loosening the surface to a smooth, loose, uniformly fine texture just prior to sodding.

D. Apply Biosol mix fertilizer at a rate of 33lbs. / 1000 SF. Apply fertilizer directly to fine grade. Remove stones larger than 1 inch in any dimension and sticks, roots, rubbish, and other extraneous matter and legally dispose of them off Owner's property.

1. Delay mixing fertilizer with planting soil if planting will not proceed within a few days.

E. Moisten prepared sod areas before planting if soil is dry. Water thoroughly and allow surface to dry before planting. Do not create muddy soil.

F. Areas where sod is to be laid shall be cut, trimmed, or shaped to receive full width sod (minimum 12”). No partial strip or pieces will be accepted.

G. Place sod on prepared surface so that joints between courses are matched against the last line laid.

H. All work shall be done from boards laid on top of the prepared surface or on already laid sod. Care shall be taken to prevent foot prints or other disturbances to the prepared bed. Any such disturbances shall be promptly repaired so that the sod will be laid on a proper bed to insure the necessary bonding between it and the sod.

I. Sod shall be tamped lightly as each piece is set to insure that good contact is made between edges and also with the ground. Sod laid on any sloped areas shall be anchored with wooden dowels or other materials which are accepted by the sodding industry. Roll sod immediately after placing using a hand roller half filled with water.

3.4 MAINTENANCE DURING LAWN ESTABLISHMENT

A. General: Begin maintenance of the lawn areas immediately after each area is planted and continue until acceptable lawn is established. Maintenance shall include watering, fertilizing, eradicating weeds, mowing, trimming, protecting slopes from erosion, maintaining mulch material, protecting lawn areas from traffic, replanting and other operations. Roll, re-grade, and re-sod/re-seed bare or eroded areas and re-mulch to provide a uniformly smooth lawn.

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B. Repair: Lawn areas shall be re-established as specified herein for eroded, damaged or barren areas.

C. Mowing Installed Sod: Mow sodded areas as soon as top growth is tall enough to cut.

Repeat mowing to maintain specified height without cutting more than 33 percent of grass height. Remove no more than 33 percent of grass-leaf growth in initial or subsequent mowings. Do not delay mowing until grass blades bend over and become matted. Do not mow when grass is wet. Schedule initial and subsequent mowings to maintain the following grass height:

1. Mow grass 3 inches high.

D. Watering: Provide and maintain permanent irrigation system to convey water from sources and to keep lawn uniformly moist to a depth of 4 inches.

1. Schedule watering to prevent wilting, puddling, erosion, and displacement of seed or mulch.

2. Water lawn at a minimum rate of 1 inch per week through establishment period.

E. Lawn Post Fertilization: Apply fertilizer immediately after installation initial mowing and when grass is dry. Water after application.

1. Use a commercial fertilizer 20-20-20+ iron that will provide actual nitrogen of at least 1 lb./1000 sq. ft. to lawn area at a total rate of 5 lbs./1000 sq. ft.. Apply no more than 1 lb./1000 sq. ft. each application.

F. Chemical Treatment:

1. When a pest or disease becomes apparent during the Lawn Establishment

Period, a state-certified applicator shall apply required chemicals in accordance with EPA label restrictions and recommendations. Hydraulic equipment for the liquid application of chemicals shall be provided with a leak-proof tank, positive agitation methods, controlled application pressure and metering gages. Pre-emergent herbicides will not be used.

2. A Chemical Treatment Plan shall be provided to the Owner as stated in these Specifications.

3.5 CLEANUP AND PROTECTION

A. Promptly remove soil and debris created by any work from paved areas. Clean wheels of vehicles before leaving site to avoid tracking soil onto roads, walks, or other paved areas.

B. Erect barricades and warning signs as required to protect newly planted areas from traffic. Maintain barricades throughout maintenance period and remove after lawn is established.

C. Remove erosion-control measures after grass establishment period.

EXTERIOR PLANTS 32 93 01

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SECTION 32 93 01

EXTERIOR PLANTS

A. Drawings and general provisions of the Contract, including Supplemental General Conditions and Special Provisions, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Trees.

2. Shrubs.

3. Ground cover.

4. Plants.

5. Mulch.

B. Related Sections include the following:

1. Section 32 84 00 Underground Irrigation Systems

2. Section 32 92 00 Turf and Grasses

1.3 DEFINITIONS

A. Balled and Burlapped Stock: Exterior plants dug with firm, natural balls of earth in which they are grown, with ball size not less than diameter and depth recommended by ANSI Z60.1 for type and size of tree or shrub required; wrapped, tied, rigidly supported, and drum-laced as recommended by ANSI Z60.1.

B. Container-Grown Stock: Healthy, vigorous, well-rooted exterior plants grown in a container with well-established root system reaching sides of container and maintaining a firm ball when removed from container. Container shall be rigid enough to hold ball shape and protect root mass during shipping and be sized according to ANSI Z60.1 for kind, type, and size of exterior plant required.

C. Finish Grade: Elevation of finished surface of planting soil.

D. Planting Soil: Native soil or surface soil modified to become topsoil; mixed with soil amendments.

E. Subgrade: Surface or elevation of subsoil remaining after completing excavation, or top surface of a fill or backfill, before placing planting soil.

1.4 SUBMITTALS

A. Product Data: For each type of product indicated.

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B. Samples for Verification: For each of the following:

1. 1 gallon bag of mulch or small bucket for each color and texture of mulch required, in labeled plastic bags.

2. Edging materials and accessories, of manufacturer's standard size, to verify color selected.

C. Product Certificates: For each type of manufactured product, signed by product manufacturer, and complying with the following:

1. Manufacturer's certified analysis for standard products.

2. Analysis of other materials by a recognized laboratory made according to methods established by the Association of Official Analytical Chemists, where applicable.

D. Qualification Data: For landscape Installer.

E. Material Test Reports: For existing surface soil and imported materials.

F. Planting Schedule: Indicating anticipated planting dates for exterior plants.

G. Maintenance Instructions: Recommended procedures to be established by Owner for maintenance of exterior plants during a calendar year. Submit before expiration of required maintenance periods upon substantial completion and prior to final acceptance and beginning of maintenance contract.

1.5 QUALITY ASSURANCE

A. Installer Qualifications: A qualified landscape installer whose work has resulted in successful establishment of exterior plants.

1. Installer's Field Supervision: Require Installer to maintain an experienced full-time supervisor on Project site when exterior planting is in progress.

A. Soil-Testing Laboratory Qualifications: An independent laboratory, recognized by the State Department of Agriculture, with the experience and capability to conduct the testing indicated and that specializes in types of tests to be performed.

1. BYU Environmental Analytical Lab

2. QA Consulting and Testing LLC.

3. Utah State Agricultural Soil Testing Lab

B. Native Soil Analysis: Adhere to recommendations of soil analysis provided by lab.

C. Organic Compost Material Analysis: Furnish test analysis of each by a qualified soil-testing laboratory or supplier stating percentages of organic matter; gradation of sand, silt, and clay content; cation exchange capacity; sodium absorption ratio; deleterious material; pH; and mineral and plant-nutrient content of both items above.

1. Report suitability of native soil for plant growth. State recommended quantities of nitrogen, phosphorus, and potash nutrients and soil amendments to be added to produce a satisfactory amended soil if different from what is called for in these specifications.

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D. Provide quality, size, genus, species, and variety of exterior plants indicated, complying with applicable requirements in ANSI Z60.1, "American Standard for Nursery Stock."

E. Tree and Shrub Measurements: Measure according to ANSI Z60.1 with branches and trunks or canes in their normal position. Do not prune to obtain required sizes. Take caliper measurements 6 inches above ground for trees up to 4-inch caliper size, and 12 inches above ground for larger sizes. Measure main body of tree or shrub for height and spread; do not measure branches or roots tip-to-tip.

F. Observation: The City’s Representative may observe trees and shrubs either at place of growth or at site before planting for compliance with requirements for genus, species, variety, size, and quality. The City retains right to observe trees and shrubs further for size and condition of balls and root systems, insects, injuries, and latent defects and to reject unsatisfactory or defective material at any time during progress of work. Remove rejected trees or shrubs immediately from Project site.

1. Notify the City’s representative of sources of planting materials 30 days in advance of delivery to site.

G. Preinstallation Conference: Conduct conference at Project site as requested by the City.

1.6 COORDINATION

A. Planting Restrictions: Plant during one of the following periods. Coordinate planting periods with maintenance periods to provide required maintenance from date of installation through final acceptance and beginning of maintenance contract.

No planting shall take place if ground is muddy, standing water is present, frozen or snow covered.

1. Spring Planting: April 15- June 15

2. Fall Planting: August 15- October 15

It should be noted that these are considered to be ideal planting periods, however, installer will be permitted to plant year round as long as none of the above conditions exist and that precautions are taken to avoid any negative effects on plantings due to any adverse seasonal weather or climate conditions that may exist.

B. Weather Limitations: Proceed with planting only when existing and forecasted weather conditions permit.

C. Coordination with Sodded/Seeded Areas: Plant trees and shrubs after finish grades are established and before sodding/seeding areas, unless otherwise acceptable to the City.

1. When planting trees and shrubs after sodded/seeded areas, protect these areas and promptly repair damage caused by planting operations.

1.7 FINAL ACCEPTANCE

A. Final Acceptance shall be issued to the Contractor per the following procedures:

1. Following substantial completion, the Owner will perform a final walk through to judge the completeness, accuracy, and sufficiency of all planting installation. This

Orem City 32 93 01 - 4 Beautification Projects will include evaluating layout and location, health of plant material, correctness of planting methods, irrigation, etc.

2. The Owner will provide a Punch List of items for the Contractor to remedy.

3. The Contractor shall notify the Owner when all punch list items are complete.

4. A Verification Walk will be performed by the Owner to verify all punch list items are adequately completed.

5. Based on a successful Verification Walk, the Owner will issue Final Acceptance to the Contractor and will take over all maintenance and care of exterior plantings. The one-year warranty will begin upon the date of Final Acceptance.

1.8 WARRANTY

A. Special Warranty: Warrant the following exterior plants, for the warranty period indicated, against defects including death and unsatisfactory growth, except for defects resulting from lack of adequate maintenance, neglect, or abuse by Owner, or incidents that are beyond Contractor's control.

1. Warranty Period for Trees and Shrubs: One year from date of Final Acceptance.

2. Warranty Period for Ground Cover and Perennial Plants: One year from date of

Final Acceptance.

3. Remove dead exterior plants immediately. Replace immediately unless required to plant in the succeeding planting season.

4. Replace exterior plants that are more than 25 percent dead or in an unhealthy condition at end of warranty period.

5. A limit of one replacement of each exterior plant will be required, except for losses or replacements due to failure to comply with requirements.

PART 2 - PRODUCTS

2.1 TREE AND SHRUB MATERIAL

A. General: Furnish nursery-grown trees and shrubs complying with ANSI Z60.1, with healthy root systems developed by transplanting or root pruning. Provide well-shaped, fully branched, healthy, vigorous stock free of disease, insects, eggs, larvae, and defects such as knots, sun scald, injuries, abrasions, and disfigurement.

B. Grade: Provide trees and shrubs of sizes and grades complying with ANSI Z60.1 for type of trees and shrubs required. Trees and shrubs of a larger size may be used if acceptable to the City’s representative, with a proportionate increase in size of roots or balls.

C. Label each tree and shrub with securely attached, waterproof tag bearing legible designation of botanical and common name.

D. Label at least one tree and one shrub of each variety and caliper with a securely attached, waterproof tag bearing legible designation of botanical and common name.

E. If formal arrangements or consecutive order of trees or shrubs is shown, select stock for uniform height and spread, and number label to assure symmetry in planting.

2.2 DECIDUOUS AND ORNAMENTAL TREES

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A. Deciduous Trees: Single-stem trees with straight trunk, well-balanced crown, and intact leader, of height and caliper indicated, complying with ANSI Z60.1 for type of trees required.

1. Provide balled and burlapped trees.

2. Branching Height: One-third to one-half of tree height.

B. Ornamental Trees: Branched or pruned naturally according to species and type, with relationship of caliper, height, and branching according to ANSI Z60.1; stem form as follows:

1. Stem Form: Single stem and Multistem, clump, with two or more main stems according to the natural form of species and type.

2. Provide balled and burlapped trees.

2.3 DECIDUOUS SHRUBS

A. Form and Size: Deciduous shrubs with not less than the minimum number of canes required by and measured according to ANSI Z60.1 for type, shape, and height of shrub.

1. Provide container-grown shrubs.

2.4 CONIFEROUS EVERGREENS

A. Form and Size: Normal-quality, well-balanced, coniferous evergreens, of type, height, spread, and shape required, complying with ANSI Z60.1.

B. Form and Size: Specimen-quality, exceptionally heavy, tightly knit, symmetrically shaped coniferous evergreens and the following grade:

1. Heavy Grade

2. Provide balled and burlapped trees.

2.5 BROADLEAF EVERGREENS

A. Form and Size: Normal-quality, well-balanced, broadleaf evergreens, of type, height, spread, and shape required, complying with ANSI Z60.1.

1. Provide container-grown shrubs.

2.6 GROUND COVER and 1 GAL. SHRUBS/ GRASSES

A. Ground Cover: Provide ground cover of species indicated on the plans, established and well rooted in pots or similar containers, and complying with ANSI Z60.1.

2.7 SEASONAL PLANTS

A. Perennials: Provide healthy, field-grown plants from a commercial nursery, of size, species and variety shown or listed.

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2.8 ORGANIC SOIL AMENDMENTS

A. Planting soil backfilll for trees, shrubs, perennials and grasses to be 30% native soil, 30% imported loamy topsoil, 20% coarse sand, and 20% peat moss or organic mulch.

2.9 FERTILIZER

A. Slow-Release Fertilizer: Trees, Shrubs, Groundcovers- Granular or pelleted fertilizer Biosol Mix 7-2-3 consisting of 50 percent water-insoluble nitrogen, phosphorus, and potassium in the following composition:

1. Apply at rate of 44lbs./ 1000 SF for groundcover and perennial areas, and 12 oz./ tree pit, 4oz./ 5 gal shrub pit: 20 percent nitrogen, 10 percent phosphorous, and 10 percent potassium, by weight.

2. Composition: 7-2-3 Nitrogen, phosphorous, and potassium or in amounts recommended in soil reports from a qualified soil-testing agency.

2.10 MULCHES

A. Organic Mulch: Free from deleterious materials and suitable as a top dressing of trees and shrubs, consisting of one of the following:

1. Type: Shredded wood mulch (Aspen, Pine Spruce).

2. Size Range: Thickness of 1/8” to 1-1/2”, length of 1” to 8”.

3. Color: Brown, not dyed.

B. Rock Mulch 1: Hard, durable cobble rock, washed free of loam, sand, clay, and other foreign substances, of following type, size range, and color:

1. Type: South Towne rock as supplied by Utah Landscaping Rock, 435.623.2332, or approved equal.

2. Size Range: 2-4” inches.

3. Color: Uniform tan-beige color range, acceptable to the Owner.

C. Rock Mulch 2: Hard, durable crushed rock, washed free of loam, sand, clay, and other foreign substances, of following type, size range, and color:

1. Type: Mt. Rose as supplied by Utah Landscaping Rock, 435.623.2332, or approved equal.

2. Size Range: 1–1.5” inches.

3. Color: Uniform light pink color range, acceptable to the Owner.

D. Rock Mulch 3: Hard, durable crushed rock, washed free of loam, sand, clay, and other foreign substances, of following type, size range, and color:

1. Type: Talons Cove Crushed Rock as supplied by Utah Landscaping Rock, 435.623.2332, or approved equal.

2. Size Range: 1.5” inches.

3. Color: Uniform gray to red color range, acceptable to the Owner.

E. Granite Fines: Crushed limestone fines:

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1. Type: 3/8” Crushed Limestone as supplied by Geneva Rock, 801.765.7800, or approved equal.

2. Size Range: 3/8” minus inches.

3. Color: Uniform gray color range, acceptable to the Owner.

2.11 WEED-CONTROL BARRIERS

A. Woven Fabric: DeWitt Pro-5 or approved equal. Polypropylene woven fabric, 5 oz./sq.

yd. Minimum, grey or earthtone in color. White will not be considered.

2.12 STAKES AND GUYS

A. Upright and Guy Stakes: 2” dia. Lodgepole pine stakes.

B. Guy and Tie Wire: Jain FlexStrap or approved equal tree ties (1” width). Nail or staple to stake to hold vertically. Loop each tie around tree loosely to provide 1” slack on trunk for growth.

2.13 MISCELLANEOUS PRODUCTS

A. Anti-dessicant: Water-insoluble emulsion, permeable moisture retarder, film forming, for trees and shrubs. Deliver in original, sealed, and fully labeled containers and mix according to manufacturer's written instructions.

2.14 PLANTING SOIL MIX- TREE, SHRUB, PERENNIAL, AND GRASS PLANT BACKFILL

A. Planting Soil Mix: Mix installed topsoil and native soil with the following in the specified quantities:

1. 30% native soil, 30% imported topsoil, 20% coarse clean sand, and 20% peat moss or organic mulch.

2. Weight of Slow-Release Biosol Mix 7-2-3 Fertilizer per 1000 Sq. Ft. of groundcover/ perennial areas: 44 lbs.

3. Weight of Slow-Release Biosol Mix 7-2-3 Fertilizer in tree pits: 12 oz.

4. Weight of Slow-Release Biosol Mix 7-2-3 Fertilizer in shrub pits: 4 oz.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas to receive exterior plants for compliance with requirements and conditions affecting installation and performance. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Protect structures, utilities, sidewalks, pavements, and other facilities, and lawns and existing exterior plants from damage caused by planting operations.

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B. Provide erosion-control measures to prevent erosion or displacement of soils and discharge of soil-bearing water runoff or airborne dust to adjacent properties and walkways.

C. Lay out individual tree and shrub locations and areas for multiple exterior plantings.

Stake locations, outline areas, adjust locations when requested, and obtain City Representative’s acceptance of layout before planting. Make minor adjustments as required.

D. Lay out exterior plants at locations directed by the City’s representative. Stake locations of individual trees and shrubs and outline areas for multiple plantings.

E. Grower shall apply anti-desiccant to all trees and shrubs using power spray to provide an adequate film over trunks, branches, stems, twigs, and foliage to protect during digging, handling, and transportation.

1. If deciduous trees or shrubs are moved in full leaf, spray with antidesiccant at nursery before moving and again two weeks after planting.

3.3 PLANTING BED ESTABLISHMENT

A. Loosen subgrade of planting beds to a minimum depth of 8 inches. Remove stones larger than 1 inch in any dimension and sticks, roots, rubbish, and other extraneous matter and legally dispose of them off Owner's property.

1. Install 8” of premium topsoil in planting beds.

B. Finish Grading: Grade planting beds to a smooth, uniform surface plane with loose, uniformly fine texture. Roll and rake, remove ridges, and fill depressions to meet finish grades.

C. Restore planting beds if eroded or otherwise disturbed after finish grading and before planting.

3.4 DELIVERY, STORAGE, AND HANDLING

A. Deliver exterior plants freshly dug.

B. Do not prune trees and shrubs before delivery, except as approved by the City’s representative. Protect bark, branches, and root systems from sunscald, drying, sweating, whipping, and other handling and tying damage. Do not bend or bind-tie trees or shrubs in such a manner as to destroy their natural shape. Provide protective covering of exterior plants during delivery. Do not drop exterior plants during delivery.

C. Handle planting stock by root ball.

D. Deliver exterior plants after preparations for planting have been completed and…