CONSTRUCTION STANDARD SPECIFICATION

SECTION 02932

[EXTERIOR PLANTS]{.underline}

[Page]{.underline}

[PART 1 - GENERAL 3](#__RefHeading___Toc178419588)

[1.1 RELATED DOCUMENTS 3](#__RefHeading___Toc178419589)

[1.2 SUMMARY 3](#__RefHeading___Toc178419590)

[1.3 REFERENCES 3](#__RefHeading___Toc178419591)

[1.4 SUBMITTALS 4](#__RefHeading___Toc178419592)

[1.5 QUALITY ASSURANCE 5](#__RefHeading___Toc178419593)

[1.6 DELIVERY, STORAGE, AND HANDLING 6](#__RefHeading___Toc178419594)

[1.7 PROJECT CONDITIONS 8](#__RefHeading___Toc178419595)

[1.8 CARE OF EXISTING PLANT MATERIAL & IRRIGATION SYSTEM
8](#__RefHeading___Toc178419596)

[1.9 WARRANTY 9](#__RefHeading___Toc178419597)

[1.10 PERFORMANCE 9](#__RefHeading___Toc178419598)

[PART 2 - PRODUCTS 10](#__RefHeading___Toc178419599)

[2.1 PLANT MATERIAL 10](#__RefHeading___Toc178419600)

[2.2 INORGANIC SOIL AMENDMENTS 11](#__RefHeading___Toc178419601)

[2.3 ORGANIC SOIL AMENDMENTS 11](#__RefHeading___Toc178419602)

[2.4 FERTILIZERS 11](#__RefHeading___Toc178419603)

[2.5 PLANTING SOILS 12](#__RefHeading___Toc178419604)

[2.6 MULCHES 13](#__RefHeading___Toc178419605)

[2.7 WEED-CONTROL BARRIERS 13](#__RefHeading___Toc178419606)

[2.8 PESTICIDES 14](#__RefHeading___Toc178419607)

[2.9 TREE STABILIZATION MATERIALS 14](#__RefHeading___Toc178419608)

[2.10 LANDSCAPE EDGINGS 14](#__RefHeading___Toc178419609)

[2.11 MISCELLANEOUS PRODUCTS 15](#__RefHeading___Toc178419610)

[PART 3 - EXECUTION 15](#__RefHeading___Toc178419611)

[3.1 EXAMINATION 15](#__RefHeading___Toc178419612)

[3.2 PREPARATION 16](#__RefHeading___Toc178419613)

[3.3 EXCAVATION FOR TREES AND SHRUBS 16](#__RefHeading___Toc178419614)

[3.4 GROUND COVER BED PREPARATION 17](#__RefHeading___Toc178419615)

[3.5 SETTING PLANTS 17](#__RefHeading___Toc178419616)

[3.6 TREE, SHRUB, AND VINE PLANTING 19](#__RefHeading___Toc178419617)

[3.7 MECHANIZED TREE SPADE PLANTING 19](#__RefHeading___Toc178419618)

[3.8 TREE, SHRUB, AND VINE PRUNING 20](#__RefHeading___Toc178419619)

[3.9 TREE STABILIZATION 20](#__RefHeading___Toc178419620)

[3.10 ROOT-BARRIER INSTALLATION 20](#__RefHeading___Toc178419621)

[3.11 PLANTING IN PLANTERS 21](#__RefHeading___Toc178419622)

[3.12 PLANTING AREA MULCHING 21](#__RefHeading___Toc178419623)

[3.13 EDGING INSTALLATION 22](#__RefHeading___Toc178419624)

[3.14 TREE GRATE INSTALLATION 22](#__RefHeading___Toc178419625)

[3.15 PLANT MAINTENANCE 22](#__RefHeading___Toc178419626)

[3.16 MAINTENANCE DURING INSTALLATION 22](#__RefHeading___Toc178419627)

[3.17 SUBSTANTIAL COMPLETION 23](#__RefHeading___Toc178419628)

[3.18 GUARANTEE PERIOD 23](#__RefHeading___Toc178419629)

[3.19 MAINTENANCE 23](#__RefHeading___Toc178419630)

[3.20 PESTICIDE APPLICATION 24](#__RefHeading___Toc178419631)

[3.21 CLEANUP AND PROTECTION 24](#__RefHeading___Toc178419632)

[3.22 DISPOSAL 24](#__RefHeading___Toc178419633)

[3.23 FINAL INSPECTION AND ACCEPTANCE 25](#__RefHeading___Toc178419634)

CONSTRUCTION STANDARD SPECIFICATION

SECTION 02932

[EXTERIOR PLANTS]{.underline}

1.  []{#__RefHeading___Toc178419588 .anchor}GENERAL

    1.  []{#__RefHeading___Toc178419589 .anchor}RELATED DOCUMENTS

        A.  Drawings and general provisions of the Contract, including
            General and Supplementary Conditions and Division 1
            Specification Sections, apply to this Section.

    2.  []{#__RefHeading___Toc178419590 .anchor}SUMMARY

        A.  Section Includes:

            1.  Plants.

            2.  Planting soils.

            3.  Tree stabilization.

            4.  Landscape edgings.

        B.  Related Sections:

            1.  Section 02200, \"Earthwork,\" for excavation, filling,
                and rough grading and for subsurface aggregate drainage
                and drainage backfill materials.

            2.  Section 02922, \"Lawns and Grasses\" for turf (lawn) and
                meadow planting, hydroseeding, and erosion-control
                materials.

            3.  Section 12930, "Site Furnishings" for Tree grates

            4.  SNL's "CAMPUS DESIGN DEVELOPMENT GUIDELINES" Plant List

    3.  []{#__RefHeading___Toc178419591 .anchor}REFERENCES

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

            1.  AMERICAN NURSERY AND LANDSCAPE ASSOCIATION (ANLA)

-   ANLA ANSI/ANLA Z60.1 (Latest version) American Standard for Nursery
    Stock

    1.  AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

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-   ANSI A300 (Latest Version) Tree Care Operations -- Trees, Shrubs and
    other Woody Plant Maintenance

    1.  AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

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-   Minimum ASTM D1117 Mullen Burst Strength -- 425 psi

-   Minimum ASTM D1682 Grab Tensile Strength -- 200 lbs & 300 lbs.

-   ASTM D1682 Grab Elongation -- between 15, 35, 50, & 140 percent

-   ASTM D3786 Trapezoidal Tear Strength -- 50 lbs. & 100 lbs.

-   Minimum ASTM D3786 Mullen Burst -- 320 psi

-   Minimum ASTM D 3787 Puncture -- 120 lbs.

-   ASTM D4833 Puncture -- 100 lbs.

-   ASTM D 4355 Apparent Opening Size \[AOS\] -- [\>]{.underline} U.S.
    Std. Sieve

-   ASTM D4972 (Latest Version) pH of Soils

-   ASTM D5268 (Latest Version) Topsoil Used for Landscaping Purposes

    1.  ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS (AOAC)

    2.  COE CW-02215 Equivalent opening size greater [\>]{.underline} to
        U.S. Standard Sieve No.50

    3.  NATIONAL ARBORIST ASSOCIATION (NAA)

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-   STANDARDIZED PLANT NAMES--SPN The American Joint Committee on
    Horticultural Nomenclature.

    1.  New Mexico Department of Agriculture (NMDOA)

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    1.  []{#__RefHeading___Toc178419592 .anchor}SUBMITTALS

        A.  General: Submit the following items in accordance with
            Conditions of the Contract and Section 01330 -- Submittal
            Procedures.

        B.  Product Data: Submit product data for the following
            materials and items. Include laboratory test reports and
            other data to show compliance with specifications (including
            specified standards). Product Data: For each type of product
            indicated, including soils.

            1.  Plant Materials: Include quantities, sizes, quality, and
                sources for plant materials.

            2.  Pesticides: Include product label, MSDS, and
                manufacturers' application instructions specific to the
                Project.

            3.  Anti-desiccant

            4.  Bark Mulch: Samples - Submit one cubic foot of bark
                mulch prior to placing order.

            5.  Fertilizer

            6.  Filter Fabric

            7.  Planting Schedule: Scheduled planting dates for each
                type of work to be performed.

            8.  Steel Edging

            9.  Tree Wrap

            10. Root Barrier

        C.  Maintenance Instruction: Submit instructions and
            recommendations for properly maintaining all plant material
            for the first growing season of landscape work. Include
            fertilization (types), schedules, and pruning.

        D.  Certification: Submit certificates of inspection or
            manufacturer's certified analysis testing compliance with
            specifications for the following.

        E.  Record drawings noting any variations from the Contract
            Documents. Submit two copies of record "Red-Line" prints
            prior to expiration of the required maintenance period.

        F.  Submit Contractor's Certification per 1.05A.

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

            1.  Trees and Shrubs: Provide for Nursery review and
                selection of material. Samples of each variety and
                size delivered to the site for review. Maintain approved
                samples on-site as a standard for comparison.

            2.  Organic Mulch: 1-quart of each organic mulch required;
                in sealed plastic bags labeled with composition of
                materials by percentage of weight and source of mulch.
                Each Sample shall be typical of the lot of material to
                be furnished; provide an accurate representation of
                color, texture, and organic makeup.

            3.  Inorganic Mulch: 5 lb of each inorganic mulch required,
                in sealed plastic bags labeled with source of mulch.
                Sample shall be typical of the lot of material to be
                delivered and installed on the site; provide an accurate
                indication of color, texture, and makeup of the
                material.

        H.  Qualification Data: For qualified landscape Installer.
            Include list of similar projects completed by Installer
            demonstrating Installer\'s capabilities and experience.
            Include project names, addresses, and year completed.

        I.  Product Certificates: For each type of manufactured product,
            from manufacturer, and complying with the following:

            1.  Manufacturer\'s certified analysis of 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.

        J.  Material Test Reports: For standardized ASTM D 5268 topsoil
            Structural soil mixture.

        K.  Maintenance Instructions: Recommended procedures to be
            established by Owner for maintenance of plants during a
            calendar year. Submit before start of required maintenance
            periods. Include fertilization (types), schedule and pruning

    2.  []{#__RefHeading___Toc178419593 .anchor}QUALITY ASSURANCE

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

        B.  A single firm specializing in all aspects of landscape and
            irrigation work and experienced with the type and scale of
            work required and having equipment and personnel adequate to
            perform the work according to this Specification and the
            Contract Drawings. If an irrigation system is required. The
            Contractor shall possess a State of New Mexico MS06 license
            for installing landscape irrigation systems. One on-site
            person must posses a journeyman irrigation license (JS6).

        C.  Plant Materials Quality Control

            1.  Ship landscape materials with certificates of inspection
                required by industry and the governing authorities \[DOA
                and NMDA\].

            2.  Label each tree, shrub and ground cover with securely
                attached waterproof tags, bearing legible designation of
                botanical and common name. Comply with regulation
                applicable to landscape materials.

            3.  Provide products in manufacture's standard packaging.
                For other materials, provide analysis by a recognized
                testing laboratory made in accordance with methods
                established by the Association of Official Agricultural
                Chemists, wherever applicable.

            4.  Do not make substitutions. If specified material is not
                available, submit proposal for use of substitute
                material.

            5.  Plant Material shall conform to varieties and sizes
                specified in the Contract Document Plant List and true
                to botanical name as listed in the SPN, and in
                accordance with the ASNS. Plant material shall be graded
                in accordance with the Code of Standards of the NAA.

            6.  Furnish healthy, vigorous, planting stock free from
                disease, insects and insects eggs, defects or
                disfigurement, bark abrasion, and sunscald damage.
                Plants shall be typical of their species or variety.

            7.  Provide plants grown under climatic conditions similar
                to this (project) locale. Unless otherwise stated, all
                plants including [native pines]{.underline} shall be
                nursery grown and shall be appropriately tagged.

            8.  Container grown plant materials shall have been grown in
                its delivery container for not less than six \[6\]
                months, but not more than two \[2\] years. Root-bound
                plant material will not be accepted. Top of first major
                tree root must be within the first 1"-inch of the top of
                the root ball, otherwise the tree will be rejected.

            9.  Balled and burlapped plant materials shall have a solid
                ball of earth held in place securely by burlap and a
                stout twine or rope. Broken or loose balls will not be
                accepted. Protect root ball from desiccation with
                plastic wrap. Avoid trees with girdled roots.

            10. Trees shall be symmetrically developed on all sides and
                shall have a single trunk or stem that is straight
                (unless otherwise specified) and free of doglegs,
                crooks, y-crotches or any other disfiguring shapes. All
                trees shall have a healthy root system and a single
                central leader that shall **[not]{.underline}** have
                been pruned. Trees with 'included bark' within major
                branch unions will be rejected.

            11. All trees shall have a branching pattern that is uniform
                in shape around their entire circumference. Plant
                material with irregular branching patterns or with
                branching patterns more highly developed on one side
                shall **[not]{.underline}** be accepted.

            12. All shade trees shall be 2 ½"inch caliper or larger. All
                ornamental trees (flowering pears, plums, etc.) shall be
                2"inch caliper or larger.

            13. The Sandia Construction Observer (SCO) and the Grounds
                and Road Services (G&RS) Representative shall be the
                judge of the quality and acceptability of all plant
                materials. All rejected plant material shall be
                immediately removed from the site and replaced with
                acceptable plant material at no additional cost to
                Sandia.

        D.  Preinstallation Conference: Conduct conference at Project
            site

    3.  []{#__RefHeading___Toc178419594 .anchor}DELIVERY, STORAGE, AND
        HANDLING

        A.  Packaged Materials: Deliver packaged materials in original,
            unopened containers showing weight, certified analysis, name
            and address of manufacturer, and indication of conformance
            with state and federal laws if applicable.

        B.  Bulk Materials:

            1.  Do not dump or store bulk materials near structures,
                utilities, walkways and pavements, or on existing turf
                areas or plants.

            2.  Provide erosion-control measures to prevent erosion or
                displacement of bulk materials, discharge of
                soil-bearing water runoff, and airborne dust reaching
                adjacent properties, water conveyance systems, or
                walkways.

            3.  Accompany each delivery of bulk fertilizers and soil
                amendments with appropriate certificates.

        C.  Notify the SCO of plant material arrival on site to
            accommodate immediate examination.

        D.  Properly protect plant material from wind damage and
            desiccation during transportation.

        E.  Plants "tree spaded" from nursery are acceptable providing
            plant balls conform to specifications.

        F.  Do not prune trees and shrubs prior to delivery. Do not bend
            or bind-tie trees or shrubs in such a manner as to damage
            bark, break branches or destroy natural shape. If deciduous
            trees or shrubs are moved in full leaf, spray with
            anti-desiccant at nursery before moving. Do not drop stock
            during delivery. Do not remove boxed or container-grown
            stock from containers until planting time.

        G.  Handle planting stock by root ball.

        H.  Storage

            1.  Place mulch in dry storage area away from contaminants.

            2.  Deliver packaged materials in original unopened
                containers showing weight, analysis, and name of
                manufacturer, in conformance with the NMDA.

            3.  Protect materials from deterioration and desiccation
                while stored at job site.

            4.  Plants not installed on the day of arrival at the
                project site shall be stored and protected as follows.

                a.  All plants stored on the project site shall be
                    protected from drying at all times by covering the
                    balls or roots with moist sawdust, wood chips,
                    shredded bark, peat moss, or other similar
                    materials. All plants shall be watered as necessary
                    until planting.

                b.  Plants shall be stored in areas designated or
                    approved by the SCO.

            5.  Store bulbs, corms, and tubers in a dry place at 60 to
                65 deg F (16 to 18 deg C) until planting.

            6.  Deliver plants after preparations for planting have been
                completed, and install immediately. If planting is
                delayed more than six hours after delivery, set plants
                and trees in their appropriate aspect (sun, filtered
                sun, or shade), protect from weather and mechanical
                damage, and keep roots moist.

            7.  Heel-in bare-root stock. Soak roots that are in dry
                condition in water for two hours. Reject dried-out
                plants.

            8.  Set balled stock on ground and cover ball with soil,
                peat moss, sawdust, or other acceptable material.

            9.  Do not remove container-grown stock from containers
                before time of planting.

            10. Water root systems of plants stored on-site deeply and
                thoroughly with a fine-mist spray. Water as often as
                necessary to maintain root systems in a moist, but not
                overly-wet condition.

    4.  []{#__RefHeading___Toc178419595 .anchor}PROJECT CONDITIONS

        A.  Pre-Construction Walk-Through

            1.  A Landscape Walk-Through of the construction site shall
                be scheduled by the Contractor five \[5\] days in
                advance of mobilization. This Walk-Through shall consist
                of the PM, Contractor, the SCO and the G&RS
                representative.

            2.  The landscape irrigation system shall be activated to
                determine the system's operating conditions. The
                existing landscape and irrigation system conditions
                shall be recorded at this time.

        B.  Field Measurements: Verify actual grade elevations, service
            and utility locations, irrigation system components, and
            dimensions of plantings and construction contiguous with new
            plantings by field measurements before proceeding with
            planting work.

        C.  Interruption of Existing Services or Utilities: Do not
            interrupt services or utilities to facilities occupied by
            Owner or others unless permitted under the following
            conditions and then only after arranging to provide
            temporary services or utilities according to requirements
            indicated:

            1.  Notify SCO no fewer than two days in advance of proposed
                interruption of each service or utility. Do not proceed
                with interruption of services or utilities without SCO
                written permission.

        D.  Coordination with Turf Areas (Lawns): Plant trees, shrubs,
            and other plants after finish grades are established and
            before planting turf areas unless otherwise indicated.

            1.  When planting trees, shrubs, and other plants after
                planting turf areas, protect turf areas, and promptly
                repair damage caused by planting operations.

    5.  []{#__RefHeading___Toc178419596 .anchor}CARE OF EXISTING PLANT
        MATERIAL & IRRIGATION SYSTEM

        A.  During construction rehabilitation plant material shall be
            regularly irrigated.

        B.  Where irrigation outages' will occur and will last longer
            than five days, the Contractor shall be responsible for
            watering landscape and plant material once per five days or
            as often as conditions dictate, until automatic irrigation
            service is restored. Apply water using the following
            formula:

            1.  Ten (10) gallons of water for each inch of trunk caliper
                \[width\]

            2.  Five (5) gallons of water for shrubs and ground cover.

        C.  Repairs: Where piping in lengths of 20'-feet or more is to
            be replaced, the repaired portion to the system shall be
            pressure tested. This shall be accomplished by capping the
            end section of the newly installed repair pipe and applying
            100 psi water pressure for 1-hour. All joints shall remain
            exposed during testing and backfilling shall be completed as
            specified in Section 02812-S. The SCO and a G&RS
            Representative shall be present during testing.

        D.  All irrigation system repairs shall be inspected by a G&RS
            (Dept.10843-3) Representative prior to backfilling.

        E.  Replace material in-kind. Refer to the Installation Section
            of Section 02821-S.

    6.  []{#__RefHeading___Toc178419597 .anchor}WARRANTY

        A.  Special Warranty: Installer agrees to repair or replace
            plantings and accessories that fail in materials,
            workmanship, or growth within specified warranty period at
            no charge to SNL.

            1.  Failures include, but are not limited to, the following:

                a.  Death and unsatisfactory growth, except for defects
                    resulting from abuse, lack of adequate maintenance,
                    or neglect by Owner, or incidents that are beyond
                    Contractor\'s control.

                b.  Structural failures including plantings falling or
                    blowing over.

                c.  Faulty performance of tree stabilization.

                d.  Deterioration of metals, metal finishes, and other
                    materials beyond normal weathering.

            2.  Warranty Periods from Date of Substantial Completion

            3.  Warranty periods in first three subparagraphs below are
                examples only for some categories of plants; revise to
                suit Project.

                a.  Trees, Shrubs, Vines, and Ornamental Grasses: 12
                    months.

                b.  Ground Covers, Biennials, Perennials, and Other
                    Plants: 12 months.

                c.  Annuals: Three months.

                d.  Turf (cool season and buffalo grass): 3 months.

            4.  Include the following remedial actions as a minimum:

                a.  Immediately remove dead plants within 10 business
                    days and replace unless required to plant in the
                    succeeding planting season.

                b.  Replace plants that are more than 25 % percent dead
                    or in an unhealthy condition at end of warranty
                    period. Replacement materials shall be of equal
                    quality, size and species as original and shall be
                    approved by the SCO or G&RS Representative prior to
                    planting.

                c.  Provide extended warranty for period equal to
                    original warranty period, for replaced plant
                    material.

    7.  []{#__RefHeading___Toc178419598 .anchor}PERFORMANCE

        A.  Perform work in a manner that will avoid damage if possible
            to existing utilities. Hand excavate as require.

        B.  Proceed with and complete landscape installation as the site
            becomes available.

        C.  Provide a Plant Protection and Preservation Plan for plant
            material in and adjacent to the Project Site that are
            scheduled to remain. The Plan shall show trunk lotions and
            drip line areas of all trees and significant shrubs to be
            preserved in and adjacent to the Project Site

2.  []{#__RefHeading___Toc178419599 .anchor}PRODUCTS

    1.  []{#__RefHeading___Toc178419600 .anchor}PLANT MATERIAL

        A.  General: Furnish nursery-grown plants true to genus,
            species, variety, cultivar, stem form, shearing, and other
            features indicated in Plant Schedule or Plant Legend shown
            on Drawings and complying with ANSI Z60.1; and with healthy
            root systems developed by transplanting or root pruning.
            Provide well-shaped, fully branched, healthy, vigorous
            stock, densely foliated when in leaf and free of disease,
            pests, eggs, larvae, and defects such as knots, sun scald,
            injuries, abrasions, and disfigurement.

            1.  Trees with damaged, crooked, or multiple leaders; tight
                vertical branches where bark is squeezed between two
                branches or between branch and trunk (\"included
                bark\"); crossing trunks; cut-off limbs more than ¾"
                inch (19 mm) in diameter; or with stem girdling roots
                will be rejected.

            2.  Collected Stock: Do not use plants harvested from the
                wild, from native stands, from an established landscape
                planting, or not grown in a nursery unless otherwise
                indicated.

        B.  Provide plants of sizes, grades, and ball or container sizes
            complying with ANSI Z60.1 for types and form of plants
            required. Plants of a larger size may be used if acceptable
            to Architect, with a proportionate increase in size of roots
            or balls.

        C.  Root-Ball Depth: Furnish trees and shrubs with root balls
            measured from top of root ball, which shall begin at root
            flare according to ANSI Z60.1. Root flare shall be visible
            before planting.

        D.  Labeling: Label each plant of each variety, size, and
            caliper with a securely attached, waterproof tag bearing
            legible designation of common name and full scientific name,
            including genus and species. Include nomenclature for
            hybrid, variety, or cultivar, if applicable for the plant as
            shown on Drawings. Nomenclature to conform to (SPN) Standard
            Plant Names.

        E.  If formal arrangements or consecutive order of plants is
            shown on Drawings, select stock for uniform height and
            spread, and number the labels to assure symmetry in
            planting.

        F.  Annuals and Biennials: Provide healthy, disease-free plants
            of species and variety shown or listed, with
            well-established root systems reaching to sides of the
            container to maintain a firm ball, but not with excessive
            root growth encircling the container. Provide only plants
            that are acclimated to outdoor conditions before
            delivery and that are in bud but not yet in bloom.

        G.  Ensure container stocks have been grown in its delivery
            container for not less than six months. Any root bound plant
            material will **[not]{.underline}** be accepted.

        H.  Trees and shrubs shall be pruned and repairable injuries
            made as follows:

            1.  Flush cuts are unacceptable. A proper cut shall begin
                just outside the branch bark ridge and angles down away
                from the stem of the tree, avoiding injury to the branch
                collar.

            2.  Comply with ANSI A300, "Trees, Shrubs, and Other Woody
                Plant Maintenance -- Standard Practices."

            3.  Flush cuts are unacceptable. A proper cut shall begin
                just outside the branch bark ridge and angles down away
                from the stem of the tree, avoiding injury to the branch
                collar.

    2.  []{#__RefHeading___Toc178419601 .anchor}INORGANIC SOIL
        AMENDMENTS

        A.  Sulfur: Granular, biodegradable, and containing a minimum of
            90 % percent sulfur, with a minimum of 99 % percent passing
            through No. 6 (3.35-mm) sieve and a maximum of 10 percent
            passing through No. 40 (0.425-mm) sieve.

        B.  Iron Sulfate: Granulated ferrous sulfate containing a
            minimum of 20 % percent iron and 10 % percent sulfur.

        C.  Perlite: Horticultural Perlite, soil amendment grade.

        D.  Agricultural Gypsum: Minimum 90 % percent calcium sulfate,
            finely ground with 90 % percent passing through No. 50
            (0.30-mm) sieve.

        E.  Sand: Clean, washed, natural or manufactured, and free of
            toxic materials.

        F.  Diatomaceous Earth: Calcined, 90 % percent silica, with
            approximately 140 % percent water absorption capacity by
            weight.

        G.  Zeolites: Mineral clinoptilolite with at least 60 % percent
            water absorption by weight.

        H.  Moisture-lite shall be screened to pass a #40 mesh

        I.  Cornell Structural soil Plant Mix shall be CU-Structural
            soil manufactured by an AMEREQ licensed company. More
            information regarding CU --Structural soil may be obtained
            by calling 1-800-832-878

    3.  []{#__RefHeading___Toc178419602 .anchor}ORGANIC SOIL AMENDMENTS

        A.  Compost: shall be City Of Albuquerque soil amendment
            facility compost or equal follows:

        B.  Sphagnum Peat: Partially decomposed sphagnum peat moss,
            finely divided or granular texture, with a pH range of 3.4
            to 4.8.

    4.  []{#__RefHeading___Toc178419603 .anchor}FERTILIZERS

        A.  Commercial Fertilizer: Commercial fertilizer shall be
            delivered to the site in unopened original containers, each
            bearing the manufacturer's guaranteed analysis.

            1.  Fertilizer shall be a granular starter fertilizer with a
                guaranteed analysis of 16-24- 10 or similar ratio.

            2.  Fertilizer shall be a polymer-coated and sulfur-coated
                controlled release fertilizer containing ammonic and
                urea nitrogen. The minimum sulfur content shall be 4%
                and the minimum iron content shall be 1%.

        B.  Chelated Iron: Commercial-grade FeEDDHA for dicots and woody
            plants, and commercial-grade FeDTPA for ornamental grasses
            and monocots.

    5.  []{#__RefHeading___Toc178419604 .anchor}PLANTING SOILS

        A.  Planting Soil Organic Compost, with pH range of 5.5 to 7, a
            minimum of 70% by volume, organic compost, screened to ½"
            inch free of stones 1" inch (25 mm) or larger in any
            dimension and other extraneous materials harmful to plant
            growth. Mix Organic Compost with the following soil
            amendments and fertilizers in the following quantities to
            produce planting soil:

            1.  Weight of Sulfur per 1000 Sq. Ft. (92.9 Sq. m): 5 lbs.

            2.  Weight of Agricultural Gypsum per 1000 Sq. Ft. (92.9
                Sq. m): 10 lbs.

            3.  Weight of Superphosphate per 1000 Sq. Ft. (92.9 Sq. m):
                \<1/2 lbs.

            4.  Also 20% by volume 'Moisture-lite' , screened to pass a
                #40 mesh.

            5.  Also 10% by volume, 'Ecolite' screened to pass \# 40
                mesh.

        B.  Topsoil -Topsoil shall be as defined by ASTM D 5268.

            1.  Suitable topsoil includes selectively excavated material
                that is representative of soils in local vicinity and is
                reasonably free form underlying sub-soils, clay lumps,
                objectionable weeds, litter, brush, matted roots, toxic
                substances or any material that might be harmful to
                plant growth or be a hindrance to grading, planting or
                maintenance operations.

            2.  Topsoil shall not contain more than 5% (five) percent by
                volume, stones or other objects larger than 1" inch in
                any diameter.

            3.  Imported topsoil shall comply with the following:

                a.  Composition (by volume)

                    i.  Organic material -- minimum of 2%.

                    ii. Silt -- minimum of 15%.

                    iii. Sand -- 15 to 50%.

                    iv. Clay -- 15 to 35%.

                    v.  Foreign Materials -- maximum of 1.0%.

                    vi. Top soil shall be approved by the SCO prior to
                        installation.

                b.  Soil pH shall be suitable for specified plants and
                    be tested in accordance with ASTM D 4972. Typical pH
                    range shall be pH 5.5 - 8.0.

            4.  Transport imported topsoil directly form the source to
                final location unless approved the SCO to be placed in
                stockpiles. If amendments are required, mix in an
                approved manner prior to placing on site. If stockpiling
                is approved, the locations and amount of the stockpiles
                will be designated by the SCO.

                a.  Natural Fertilizer/Soil Conditioner: Provide as
                    supplied by the following manufacturers: Soil Foods
                    Inc., \[505.983.8078\] or Technology International
                    \[505.291.1100\].

        C.  Soil Testing:

            1.  Collect samples of soil in planting/seeding areas; mix
                and submit a SINGLE SAMPLE to a recognized testing
                laboratory for evaluation of fertility.

            2.  Collect \[5\] to \[10\] samples from each unit or zone.

            3.  Testing shall include evaluation for PH, % Base
                Saturation, Free Lime, and EC.

    6.  []{#__RefHeading___Toc178419605 .anchor}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: Bark Mulch - Bark mulch shall be fresh, shredded
                mixture of ½" -- 5"inch pieces of wood, cambium and bark
                nuggets from coniferous trees, as available from Western
                Organics Inc.

            2.  Size Range: 5" inches **(76 mm)** maximum**, ½"** inch
                **(13 mm)** minimum.

            3.  Color: Natural

        B.  Inorganic Mulch:

            1.  As supplied by

                a.  Rocky Mountain Stone Co.

                b.  San Pedro Rock

                c.  or approved equal

            2.  Hard, durable stone, washed free of loam, sand, clay,
                and other foreign substances, of following type, size
                range, and color.. Provide one or more of the following,
                as noted on the Contract Drawings:

                a.  Crusher Fine Gravel Mulch -- Color as noted on
                    Contract Drawings.

                    i.  Crusher fines -- Santa Fe Brown or Sunset Rose,
                        3/8" inch max.

                b.  Large Gravel Mulch -- ¾" inch, color as noted on
                    Contract Drawings.

                    i.  Large Gravel,- ¾"-1" inch Tinaja Gravel

                c.  Cobble Mulch -- Stones not less than 4 -- inches in
                    any direction and not more than 12" -- inches in ay
                    direction with less than 15% broken fragments.

                    i.  Cobble -- ½"-1 ½" inch Santa Fe Brown or ¾"-2"
                        inches Rounded Gray Gravel

    7.  []{#__RefHeading___Toc178419606 .anchor}WEED-CONTROL BARRIERS

        A.  Nonwoven Geotextile Filter Fabric: Polypropylene or
            polyester fabric, 3 oz./sq. yd. (101g/sq. m) minimum,
            composed of fibers formed into a stable network so that
            fibers retain their relative position. Fabric shall be inert
            to biological degradation and resist naturally-encountered
            chemicals, alkalis, and acids.

            1.  Non-Woven:

                a.  Minimum ASTM D1682 Grab Tensile Strength -- 200 lb

                b.  ASTM D 1682 Grab Elongation -- between 50 & 140
                    percent.

                c.  ASTM D 3786 Trapezoidal Tear -- 50 lbs.

                d.  Minimum ASTM D 3786 Mullen Burst -- 320 psi

                e.  ASTM D 4833 Puncture -- 100 lbs.

                f.  ASTM D 4355 Apparent Opening Size \[AOS\] -
                    [\>]{.underline} U.S. Std. Sieve.

        B.  Composite Fabric: Woven, needle-punched polypropylene
            substrate bonded to a nonwoven polypropylene fabric, 4.8
            oz./sq. yd. (162 g/sq. m).

    8.  []{#__RefHeading___Toc178419607 .anchor}PESTICIDES

        A.  General: Pesticide registered and approved by EPA,
            acceptable to authorities having jurisdiction, and of type
            recommended by manufacturer for each specific problem and as
            required for Project conditions and application. Do not use
            restricted pesticides unless authorized in writing by
            authorities having jurisdiction.

        B.  Pre-Emergent Herbicide (Selective and Non-Selective):
            Effective for controlling the germination or growth of weeds
            within planted areas at the soil level directly below the
            mulch layer.

        C.  Post-Emergent Herbicide (Selective and Non-Selective):
            Effective for controlling weed growth that has already
            germinated.

    9.  []{#__RefHeading___Toc178419608 .anchor}TREE STABILIZATION
        MATERIALS

        A.  Stakes and Guys:

            1.  Proprietary Staking-and-Guying Devices: Proprietary
                stake and adjustable tie systems to secure each new
                planting by plant stem; sized as indicated and per
                manufacturer\'s written recommendations.

                a.  Arborbrace; ArborBrace Tree Guying System.

                b.  or approved equal.

        B.  Root-Ball Stabilization Materials:

            1.  Proprietary Root-Ball Stabilization Devices: Proprietary
                at- or below-grade stabilization systems to secure each
                new planting by root ball; sized per manufacturer\'s
                written recommendations unless otherwise indicated.

                a.  Products: Subject to compliance with requirements,
                    provide one of the following available products that
                    may be incorporated into the Work include, but are
                    not limited to, the following:

                    i.  Border Concepts, Inc.; Tomahawk Tree
                        Stabilizers.

                    ii. Foresight Products, LLC; Duckbill Root ball
                        Fixing System.

                    iii. Tree Staple, Inc.; Tree Staples.

    10. []{#__RefHeading___Toc178419609 .anchor}LANDSCAPE EDGINGS

        A.  Steel Edging: Standard commercial-steel edging, rolled edge,
            fabricated in sections of standard lengths, with loops
            stamped from or welded to face of sections to receive
            stakes.

            1.  Provide commercial 14 gauge steel edging x 1/8-inch
                thick x 6-inches high.

            2.  Provide commercial 14 gauge steel edging x 1/8-inch
                thick x 6-inches high.

            3.  Color shall be Green or Brown as specified on the
                Contract Drawings.

            4.  Steel edging sections shall have anchor stake loops
                stamped in face of section 32"-inches o.c. Use 12" inch
                tapered steel anchoring stakes 3/16" inch thick with a
                powder coat finish.

    11. []{#__RefHeading___Toc178419610 .anchor}MISCELLANEOUS PRODUCTS

        A.  Anti-desiccant: 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. Wilt-pruf
            or approved equal

        B.  Burlap: Non-synthetic, biodegradable.

        C.  Planter Drainage Gravel: Washed, sound crushed stone or
            gravel complying with ASTM D 448 for Size No. 8.

        D.  Planter Filter Fabric: Nonwoven geotextile manufactured for
            separation applications and made of polypropylene,
            polyolefin, or polyester fibers or combination of them.

        E.  Tree trunk protection: Arborgard

        F.  Tree grates are specified in SNL Standard Specification
            12930 Site Furnishings

        G.  Root Barrier

3.  []{#__RefHeading___Toc178419611 .anchor}EXECUTION

    1.  []{#__RefHeading___Toc178419612 .anchor}EXAMINATION

        A.  Examine areas to receive plants and mulches for compliance
            with requirements and conditions affecting installation and
            performance.

            1.  Verify that no foreign or deleterious material or liquid
                such as paint, paint washout, concrete slurry, concrete
                layers or chunks, cement, plaster, oils, gasoline,
                diesel fuel, paint thinner, turpentine, tar, roofing
                compound, or acid has been deposited in soil within a
                planting area.

            2.  Do not mix or place soils and soil amendments in frozen,
                wet, or muddy conditions.

            3.  Suspend soil spreading, grading, and tilling operations
                during periods of excessive soil moisture until the
                moisture content reaches acceptable levels to attain the
                required results.

            4.  Uniformly moisten excessively dry soil that is not
                workable and which is too dusty.

            5.  Verify soil grades are complete and correct.

        B.  Proceed with installation only after unsatisfactory
            conditions have been corrected.

        C.  If contamination by foreign or deleterious material or
            liquid is present in soil within a planting area, remove the
            soil and contamination as directed by SCO and replace with
            new planting soil.

        D.  Planting may be done whenever the weather and soil
            conditions are favorable (preferably Spring thru late Fall)
            or as otherwise authorized by the SCO.

    2.  []{#__RefHeading___Toc178419613 .anchor}PREPARATION

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

        B.  Install 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 plantings. Stake locations, outline areas, adjust
            locations when requested, and obtain SCO acceptance of
            layout before excavating or planting. Make minor adjustments
            as required, except where field conditions dictate
            adjustments.

        D.  Lay out plants at locations directed by SCO. Stake locations
            of individual trees and shrubs and outline areas for
            multiple plantings. Layout edges of planting beds stake
            trees and mark shrub locations with actual containerized
            plant material for review by the G+RS Representative -- Dept
            04843-3 and the project SCO.

        E.  Apply anti-desiccant to trees and shrubs using power spray
            to provide an adequate film over trunks (before wrapping),
            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 anti-desiccant at nursery before moving and
                again two weeks after planting.

    3.  []{#__RefHeading___Toc178419614 .anchor}EXCAVATION FOR TREES AND
        SHRUBS

        A.  Prior to excavation of planting beds, swales and pits, all
            areas shall conform to the grades and slopes as shown on the
            drawings, and the location of any underground utilities and
            irrigation system shall be verified by the Contractor. Any
            damage to existing utilities or irrigation systems shall be
            immediately repaired at Contractor\'s expense.

        B.  Rock and other debris shall be removed to a depth necessary
            to permit proper planting.

        C.  Plant pits shall be excavated with sides sloping in at a 45
            degree angle and shall meet the minimum dimensions shown on
            Standard Drawing LP5003STD - Planting Details & Schedule.
            Avoid glazing sides of planting pits. Glazed pits shall be
            scarified.

        D.  Excess soil and other excavated materials shall be removed
            from the project site, or as directed by the SCO.

        E.  Obstructions: Notify Architect if unexpected rock or
            obstructions detrimental to trees or shrubs are encountered
            in excavations.

        F.  Hardpan Layer: Drill 6"-inch (150-mm-) diameter holes, 24"
            inches (600 mm) apart, into free-draining strata or to a
            depth of 10' feet (3 m), whichever is less, and backfill
            with free-draining material.

        G.  Drainage: Notify Architect if subsoil conditions evidence
            unexpected water seepage or retention in tree or shrub
            planting pits.

        H.  Fill excavations with water and allow to percolate away
            before positioning trees and shrubs.

    4.  []{#__RefHeading___Toc178419615 .anchor}GROUND COVER BED
        PREPARATION

        A.  Bed areas shall be cultivated to a depth of 6-8" inches,
            removing all grass, weeds, roots, rocks, and other debris.

        B.  Prior to planting, water all areas thoroughly to produce
            weed growth. Apply \"Glyphosate\" herbicide to kill all
            growth and proceed with installation after period
            recommended by herbicide manufacturer.

        C.  Incorporate granular starter fertilizer at recommended rate
            along with planting soil mixture at the rate of 1 part
            planting soil mixture to 3 parts native soil.

    5.  []{#__RefHeading___Toc178419616 .anchor}SETTING PLANTS

        A.  Trees

            1.  Excavate tree pits to a diameter three \[3\] times
                greater than the size of the root ball, and at the same
                depth of the root ball. Do not disturb soil at the
                bottom of the pits.

            2.  B&B Plants: Cut and remove wire basket. Remove any
                plastics or gro-bags, from root ball. Center and set
                tree plumb with the full side of the plant facing the
                front of the bed with top of ball at or slightly higher
                (no more than 1"-inch) than the surrounding finished
                grade. Fold down the top half of the burlap and remove
                any nylon strings or twine. Entirely remove synthetic
                burlap type materials.

            3.  Container-Grown Plants: Handle plants by the container
                and **[not]{.underline}** by the tops or trunks. Set and
                plant trees same as for B&B.

            4.  Backfill and carefully tamp layers to two-thirds the
                depth of the root ball and flood with water. The
                backfill shall be watered to settle the soil and
                eliminate air pockets. No packing materials shall
                protrude above soil level after planting is completed.

            5.  After water is absorbed, install 6 fertilizer tablets
                evenly around perimeter of each tree root ball 6"-inches
                below grade. Continue backfilling and tamping to grade,
                leaving no voids or air pockets. Water again after
                placing final layer of backfill.

            6.  Form a 6'-foot diameter build-up earth ring or a 6-foot
                diameter depression \[rare occasion\] 4"-inches below
                surrounding finished grade with sides neatly sloped
                inward to top of root ball. On slopes, maintain 4-inches
                below surrounding grade on the downhill side. Fill
                saucer or depression with 2 -- 3" inches of bark mulch.

            7.  Broadcast over the root ball and backfill soil, at the
                recommended rate, a broad-spectrum, pre-emergent
                herbicide prior to mulching.

            8.  Trees shall be staked, guyed, wrapped (as needed),
                protected, and mulched as indicated on Standard Drawing
                LP5003STD - Planting Details & Schedule.

            9.  Irrigation: Each tree shall receive two \[2\] bubblers.
                Refer to Section 02812 -- Landscape Irrigation System.

            10. Tree Protection: Trees shall be wrapped and protected in
                a suitable material that will prevent rabbits and other
                varmints from chewing on tree bark causing irreparable
                damage to trees. Refer to Standard Drawing LP5003STD --
                Planting Details & Schedule.

        B.  Shrubs.

            1.  Final grades of shrub areas and final shrub layout shall
                be approved by the SNL G&RS representative and the
                project SCO.

            2.  Clear shrub areas of rocks, stones larger than 1-inch in
                any dimension and other debris.

            3.  Container grown stock shall be removed from containers
                in such a way as to prevent damage to plant or roots.

            4.  Excavate shrub pits to a diameter 3X greater than the
                size of the root ball and at the same depth of the root
                ball. Place plants on compacted backfill layer. Shrubs
                shall be uniformly spaced as indicated, plumb and at
                finished grade, with the full side facing the front of
                the bed.

            5.  Place three fertilizer tablets per shrub when shrub pit
                is two-thirds backfilled. Place planting soil and native
                soil mixture at 1:3 ratio to finish grade level and
                thoroughly soak.

            6.  All bed areas shall have rock mulch spread as indicated
                on Contract Drawings to a uniform thickness of
                2"-inches. Set top of backfill in shrub areas to allow
                for mulching.

            7.  Install "filter fabric" (weed barrier) and mulch as
                indicated on Contract Drawings.

            8.  Irrigation: Each shrub shall receive a minimum of two
                \[2\] micro water distribution lines placed on opposite
                sides of the root ball or as specified on Irrigation or
                Landscape Construction Documents. Refer to Section 02812
                -- Landscape Irrigation System and Standard Drawing
                LP5001STD, & LP5002STD -- Irrigation Details.

            9.  Form a watering bowl/dish three times the size of the
                root ball width and four inches high to hold irrigation
                water.

        C.  Ground Cover :

            1.  Loosen sub-grade of planting bed areas to a minimum
                depth of 6"-inches. Clear area of stones larger than
                1-inch in any dimension, sticks, rubbish and other
                extraneous matter.

            2.  Place one-halve of total amount of planting soil
                required over planting bed. Work into top of loosened
                sub-grade to create a transition layer, then place
                remainder of the planting soil.

            3.  Layout ground cover material and align plants uniformly.
                Excavate pits large enough to set each plant. Scarify
                root mass of each plant as deemed necessary. Backfill
                with excavated planting soil mix. Water thoroughly. Fill
                depressions and level high spots.

            4.  Prune ground cover plant material as deemed necessary.
                Refer to Section 3.010 \[Pruning & Repair\] of the
                Specification.

        D.  Apply anti-desiccant using power spray to provide an
            adequate film over trunks, branches, stems, twigs and
            foliage according to manufacturer's recommendations. If
            deciduous trees or shrubs are moved in full leaf, spray with
            anti-desiccant at nursery before moving and again two weeks
            after planting.

            1.  Maintain required angles of repose of adjacent materials
                as shown on the Drawings. Do not excavate subgrades of
                adjacent paving, structures, hardscapes, or other new or
                existing improvements.

            2.  Maintain supervision of excavations during working
                hours.

            3.  Keep excavations covered or otherwise protected when
                unattended by Installer\'s personnel.

            4.  If drain tile is shown on Drawings or required under
                planting areas, excavate to top of porous backfill over
                tile.

        E.  Subsoil and topsoil removed from excavations maybe used as
            part of planting soil mixture.

    6.  []{#__RefHeading___Toc178419617 .anchor}TREE, SHRUB, AND VINE
        PLANTING

        A.  Before planting, verify that root flare is visible at top of
            root ball according to ANSI Z60.1. If root flare is not
            visible, remove soil in a level manner from the root ball to
            where the top-most root emerges from the trunk. After soil
            removal to expose the root flare, verify that root ball
            still meets size requirements.

        B.  Remove stem girdling roots and kinked roots. Remove injured
            roots by cutting cleanly; do not break.

        C.  Set balled and burlapped stock plumb and in center of
            planting pit or trench with root flare adjacent finish
            grades.

            1.  Use planting soil mixed with native (excavated) soil at
                1:3 ratio for backfill.

            2.  After placing some backfill around root ball to
                stabilize plant, carefully cut and remove burlap, rope,
                and wire baskets from tops of root balls and from sides,
                but do not remove from under root balls. Remove pallets,
                if any, before setting. Do not use planting stock if
                root ball is cracked or broken before or during planting
                operation.

        D.  When planting on slopes, set the plant so the root flare on
            the uphill side is flush with the surrounding soil on the
            slope; the edge of the root ball on the downhill side will
            be above the surrounding soil. Apply enough soil to cover
            the downhill side of the root ball.

    7.  []{#__RefHeading___Toc178419618 .anchor}MECHANIZED TREE SPADE
        PLANTING

        A.  Trees shall be planted with an approved mechanized tree
            spade at the designated locations. Do not use tree spade to
            move trees larger than the maximum size allowed for a
            similar field-grown, balled-and-burlapped root-ball diameter
            according to ANSI Z60.1, or larger than the manufacturer\'s
            maximum size recommendation for the tree spade being used,
            whichever is smaller.

        B.  When extracting the tree, center the trunk within the tree
            spade and move tree with a solid ball of earth.

        C.  Cut exposed roots cleanly during transplanting operations.

        D.  Use the same tree spade to excavate the planting hole as was
            used to extract and transport the tree.

        E.  Plant trees as shown on Drawings, following procedures in
            \"Tree, Shrub, and Vine Planting\" Article.

        F.  Where possible, orient the tree in the same direction as in
            its original location.

    8.  []{#__RefHeading___Toc178419619 .anchor}TREE, SHRUB, AND VINE
        PRUNING

        A.  Remove only dead, dying, or broken branches. Do not prune
            for shape.

        B.  Prune, thin, and shape trees, shrubs, and vines as directed
            by SNL Architect.

        C.  Prune, thin, and shape trees, shrubs, and vines according to
            standard professional horticultural and arboricultural
            practices. Unless otherwise indicated by SNL Architect, do
            not cut tree leaders; remove only injured, dying, or dead
            branches from trees and shrubs; and prune to retain natural
            character.

        D.  Do not apply pruning paint to wounds.

    9.  []{#__RefHeading___Toc178419620 .anchor}TREE STABILIZATION

        A.  Install trunk stabilization as follows unless otherwise
            indicated:

            1.  Use Arborbrace proprietary stake and tie system to
                secure trees 2" inches and greater.

        B.  Root-Ball Stabilization: Install at- or below-grade
            stabilization system to secure each new planting by the root
            ball as indicated in the drawings

            1.  Proprietary Root-Ball Stabilization Device: Install
                root-ball stabilization system sized and positioned as
                recommended by manufacturer unless otherwise indicated
                and according to manufacturer\'s written instructions.

    10. []{#__RefHeading___Toc178419621 .anchor}ROOT-BARRIER
        INSTALLATION

        A.  Install root barrier where trees are planted within 120"
            inches **(1500 mm)**\] of paving or other hardscape
            elements, such as walls, curbs, and walkways unless
            otherwise shown on Drawings.

        B.  Align root barrier vertically and run it linearly along and
            adjacent to the paving or other hardscape elements to be
            protected from invasive roots.

        C.  Install root barrier continuously for a distance of 60"
            inches (1500 mm) in each direction from the tree trunk, for
            a total distance of 10' feet (3 m) per tree. If trees are
            spaced closer, use a single continuous piece of root
            barrier.

            1.  Position top of root barrier flush with finish grade.

            2.  Overlap root barrier a minimum of 12" inches (300 mm) at
                joints.

            3.  Do not distort or bend root barrier during construction
                activities.

            4.  Do not install root barrier surrounding the root ball of
                tree.

            5.  Install root barrier a minimum of 3' feet deep from
                finished grade.

    11. []{#__RefHeading___Toc178419622 .anchor}PLANTING IN PLANTERS

        A.  Place a layer of drainage gravel at least 4" inches (100 mm)
            thick in bottom of planter. Cover bottom with filter fabric
            and wrap filter fabric 4" inches (100 mm) up on all sides.
            Duct tape along the entire top edge of the filter fabric, to
            secure the filter fabric against the sides during the
            soil-filling process.

        B.  Fill planter with mix of planting soil and topsoil at a 1:3
            ratio. Place soil mix in lightly compacted layers to an
            elevation of 1-1/2" inches (38 mm) below top of planter,
            allowing natural settlement.

    12. []{#__RefHeading___Toc178419623 .anchor}PLANTING AREA MULCHING

        A.  Install weed-control barriers before mulching according to
            manufacturer\'s written instructions. Completely cover area
            to be mulched, overlapping edges a minimum of 12 inches
            **(300mm)** and secure seams with galvanized pins.

        B.  Mulch backfilled surfaces of planting areas and other areas
            indicated.

            1.  Trees and Tree-like Shrubs in Turf Areas: Apply organic
                mulch ring of 3"-inch (75-mm) average thickness, with
                36"-inch (900-mm) radius around trunks or stems. Do not
                place mulch within 3" inches (75 mm) of trunks or stems.

            2.  Organic Mulch in Planting Areas: Apply 3"-inch (75-mm)
                average thickness of organic mulch extending 12" inches
                (300 mm) beyond edge of individual planting pit or
                trench\] and over whole surface of planting area, and
                finish level with adjacent finish grades. Do not place
                mulch within 3" inches (75 mm) of trunks or stems.

            3.  Inorganic Mulch in Planting Areas: Apply 3"-inches
                (75-mm) average thickness of mineral mulch extending 12"
                inches (300 mm) beyond edge of individual planting pit
                or trench\] and over whole surface of planting area, and
                finish level with adjacent finish grades. Do not place
                mulch within 3"inches (75 mm) of trunks or stems.

            4.  Setting Stone

                a.  Dry Stream (Water Harvesting System)

                    i.  ¾"inch Tinaja gravel 3" inch in depth lining the
                        channel (as indicated on the Contract Drawings).

                    ii. 2-4" inch Cobblestone placed along sides of
                        channel (as indicated on the Contract Drawings).

                    iii. 7-14"inches Rainbow round cobblestone placed
                         along sides of channel (as indicated on the
                         Contract Drawings).

                    iv. Los Lunas Boulders 14"-20"inches in size placed
                        along sides of channel (as indicated on the
                        Contract Drawings).

                b.  Paths and Other Areas \[Shown On Contract
                    Drawings\].

                    i.  Compacted Crusher Fines or ½" inch Tinaja gravel
                        2"-inches minimum in depth.

                c.  Mulch for Planting Beds.

                    i.  3/8" inch Santa Fe Brown 2"-inches minimum
                        depth.

                    ii. 3/8"inch Sunset Rose gravel, 2"-inches minimum
                        depth.

                    iii. Crusher Fines or ½"inch Tinaja gravel --
                         2"-inches in depth.

                    iv. Crusher Fines shall be graded 75% percent
                        crushed stone.

                d.  Gravel Mulch:

                    i.  Install gravel mulch at a depth of 2 - 4-"inches
                        max. unless otherwise indicated. All mulch shall
                        be installed a minimum of 1"-inch below
                        surrounding hardscape grade i.e. concrete or
                        asphalt walk-ways and cart-pass, mow strips,
                        etc...

                    ii. Large Boulders For Seating, etc.:.

                    iii. Los Lunas Boulders dimensions in range of:
                         Length 3'-5' feet, width 2'-3'feet, and height
                         of 20" -- 30"inches refer to drawing.

    13. []{#__RefHeading___Toc178419624 .anchor}EDGING INSTALLATION

        A.  Steel Edging: Install steel edging where indicated according
            to manufacturer\'s written instructions. Anchor with steel
            stakes spaced approximately 30"inches (760 mm) apart, driven
            below top elevation of edging.

    14. []{#__RefHeading___Toc178419625 .anchor}TREE GRATE INSTALLATION

        A.  Tree Grates: Set grate segments flush with adjoining
            surfaces as shown on Drawings. Shim from supporting
            substrate with soil-resistant plastic. Maintain a 3"-inch-
            (75-mm-) minimum growth radius around base of tree; break
            away units of casting, if necessary, according to
            manufacturer\'s written instructions.

    15. []{#__RefHeading___Toc178419626 .anchor}PLANT MAINTENANCE

        A.  Maintain plantings by pruning, cultivating, watering,
            weeding, fertilizing, mulching, restoring planting saucers,
            adjusting and repairing tree-stabilization devices,
            resetting to proper grades or vertical position, and
            performing other operations as required to establish
            healthy, viable plantings. Spray or treat as required to
            keep trees and shrubs free of insects and disease.

        B.  Fill in, as necessary, soil subsidence that may occur
            because of settling or other processes. Replace mulch
            materials damaged or lost in areas of subsidence.

        C.  Apply treatments as required to keep plant materials,
            planted areas, and soils free of pests and pathogens or
            disease. Use integrated past management practices whenever
            possible to minimize the use of pesticides and reduce
            hazards. Treatments include physical controls such as hosing
            off foliage, mechanical controls such as traps, and
            biological control agents.

    16. []{#__RefHeading___Toc178419627 .anchor}MAINTENANCE DURING
        INSTALLATION

        A.  Maintenance of plant material shall follow ANSI A300
            Standard Practices.

        B.  Maintenance operations shall begin immediately after each
            plant is installed and shall continue as specified herein
            following substantial completion. Plants shall be kept in a
            healthy, growing condition by watering, pruning, spraying,
            weeding, and any other operations necessary to maintain such
            health. Planting beds shall be kept free of weeds, grass,
            and other undesired vegetation. Keep all walks and paved
            areas clean. The site is to be kept clear of debris
            resulting from landscape work or maintenance. Protect
            planted stock from damage resulting from trespass, erosion
            \[to include watering\], weather disease, and other hazards.

            1.  Program Controller to provide optimum irrigation.
                Maintain these conditions thru maintenance period.

        C.  Contractor shall be responsible for repair or replacement of
            any damaged structures, plants, etc. in which damage
            resulted from planting/landscaping operations.

    17. []{#__RefHeading___Toc178419628 .anchor}SUBSTANTIAL COMPLETION

        A.  The SCO and G&RS Representative shall inspect all work for
            substantial completion upon written request by the
            Contractor three days in advance. The SCO and the 4843-3
            Representative shall generate a punch list of items to
            repair or replace.

        B.  Upon completion of all repairs or replacements requested at
            the time of inspection, repairs and/or replacements shall be
            re-inspected and the SCO shall certify in writing the
            substantial completion.

    18. []{#__RefHeading___Toc178419629 .anchor}GUARANTEE PERIOD

        A.  All plant materials shall be guaranteed for replacement for
            a period of 365 days, beginning on the date of substantial
            completion certification.

        B.  Replacements: Any plant required under this contract that is
            dead or not showing satisfactory growth, as determined by
            the SCO shall be promptly removed from the site and replaced
            by the Contractor within ten consecutive working days of
            being notified by the SDR (Sandia Designated
            Representative). All replacements shall be of the same size
            and variety as originally specified, unless otherwise
            directed.

        C.  Plant material damaged by rabbits or other varmints during
            Guarantee Period that were not protected as specified herein
            and on Contract Drawings, shall be replaced by the
            Contractor at no cost to Sandia National Labs.

        D.  The Contractor will not be responsible for damage to plants
            by vehicles or encroachers following substantial completion
            and acceptance.

    19. []{#__RefHeading___Toc178419630 .anchor}MAINTENANCE

        A.  The Contractor will be responsible for maintaining the
            irrigation system and all plant material up to the date of
            substantial completion, and for a thirty \[30\] day
            maintenance period beginning on the date of substantial
            completion. During this thirty \[30\] day maintenance
            period, the Contractor is responsible for:

            1.  Watering plants as necessary to maintain adequate supply
                of moisture in root zone. Maintain optimum moisture
                conditions.

            2.  Coordinating CICS programming with the SNL G&RS
                Department.

            3.  Watering at a rate which allows soil to absorb water.

            4.  Pruning plants as required to remove dead, damaged, or
                conflicting branches.

            5.  Mulching plants to keep a depth of 2" to 4" -- inches.

            6.  In planting beds, removing grass and weeds on a weekly
                basis.

            7.  Spraying plants with approved pesticides as required and
                directed by the SCO and the G&RS Representative.

        B.  CICS programming adjustments

            1.  Inspect irrigation and perform adjustments on a weekly
                basis.

    20. []{#__RefHeading___Toc178419631 .anchor}PESTICIDE APPLICATION

        A.  Apply pesticides and other chemical products and biological
            control agents in accordance with authorities having
            jurisdiction and manufacturer\'s written recommendations.
            Coordinate applications with SNL operations and others in
            proximity to the Work. Notify SCO before each application is
            performed.

        B.  Pre-Emergent Herbicides (Selective and Non-Selective): Apply
            to tree, shrub, and ground-cover areas in accordance with
            manufacturer\'s written recommendations. Do not apply to
            seeded areas.

        C.  Post-Emergent Herbicides (Selective and Non-Selective):
            Apply only as necessary to treat already-germinated weeds
            and in accordance with manufacturer\'s written
            recommendations.

    21. []{#__RefHeading___Toc178419632 .anchor}CLEANUP AND PROTECTION

        A.  During planting, keep adjacent paving and construction clean
            and work area in an orderly condition.

        B.  Protect plants from damage due to landscape operations and
            operations of other contractors and trades. Maintain
            protection during installation and maintenance periods.
            Treat, repair, or replace damaged plantings.

        C.  After installation and before Substantial Completion, remove
            nursery tags, nursery stakes, tie tape, labels, wire,
            burlap, and other debris from plant material, planting
            areas, and Project site.

    22. []{#__RefHeading___Toc178419633 .anchor}DISPOSAL

        A.  Remove surplus soil and waste material including excess
            subsoil, unsuitable soil, trash, and debris, and legally
            dispose of them off of SNL\'s property.

    23. []{#__RefHeading___Toc178419634 .anchor}FINAL INSPECTION AND
        ACCEPTANCE

        A.  At the end of the maintenance and guarantee period and after
            substantial completion an inspection of plants will be made
            by the SCO upon written request by Contractor five days in
            advance. The Contractor will be notified in writing of the
            Final Acceptance, or of work required. The Contractor will
            be responsible for all maintenance until all punch list
            items are completed and Final Acceptance is granted, at
            which time Sandia will assume responsibility.

        B.  Landscape work may be inspected for acceptance in phases
            agreeable to the SCO providing work offered for inspection
            is completed including maintenance. Final inspection shall
            be done by the Sandia G&RS Representative and the SCO.
            Existing Project-Site Conditions addressed under Sections
            1.9 of this Specification shall also be inspected at this
            time for final acceptance.

        C.  Any plant material, as required under this contract that is
            dead, not true to name or size as specified, or not in
            satisfactory growth condition as determined by the SCO shall
            be removed from site and replaced as originally specified
            without cost to Sandia National Labs.

-END OF SECTION -