36C78618R0433-003.pdf

Miramar National Cemetery Project No.: 892-NRM-18-007 Landscape Improvements Project

Attachment B

Specifications (2 Sections)

• Section 32 84 00 – Planting Irrigation

• Section 32 90 00 – Planting

Miramar National Cemetery Landscape Planting and Irrigation Project

San Diego, California Project 892-NRM-18-007

32 90 00-1

SECTION 32 90 00

PLANTING

PART 1 - GENERAL

1.1 DESCRIPTION

A. The work in this section consists of furnishing and installing plants, tree stakes, slope scarifying, compost socks, compost blanket, seed, erosion control netting, decorative mulches and other landscape materials required as specified in locations shown.

1.2 RELATED WORK

A. Section 32 84 00, PLANTING IRRIGATION.

1.3 DEFINITIONS

A. Backfill: The earth used to replace earth in an excavation.

B. Balled and Burlapped Stock: ANSI Z60.1. Plants dug with firm, natural balls of earth in which they were grown, with ball size not less than diameter and depth recommended by ANSI Z60.1 for type and size of plant required; wrapped with burlap, tied, rigidly supported, and drum laced with twine with the root flare visible at the surface of the ball.

C. Balled and Potted Stock: ANSI Z60.1. Plants dug with firm, natural balls of earth in which they are grown and placed, unbroken, in a container.

Ball size is not less than diameter and depth recommended by ANSI Z60.1 for type and size of plant required.

D. Container-Grown Stock: Healthy, vigorous, well-rooted plants grown in a container, with a 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 type and size of plant required.

E. Fabric Bag-Grown Stock: Healthy, vigorous, well-rooted plants established and grown in-ground in a porous fabric bag with well-established root system reaching sides of fabric bag. Fabric bag size is not less than diameter, depth, and volume required by ANSI Z60.1 for type and size of plant.

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

32 90 00-2

G. Manufactured Topsoil: Soil produced off-site by homogeneously blending mineral soils or sand with stabilized organic soil amendments to produce topsoil or planting soil.

H. Pesticide: A substance or mixture intended for preventing, destroying, repelling, or mitigating a pest. This includes insecticides, miticides, herbicides, fungicides, rodenticides, and molluscicides. It also includes substances or mixtures intended for use as a plant regulator, defoliant, or desiccant.

I. Planting Soil: Standardized topsoil; existing, native surface topsoil;

existing, in-place surface soil; imported topsoil; or manufactured topsoil that is modified with soil amendments and perhaps fertilizers to produce a soil mixture best for plant growth.

J. Plant Material: These terms refer to vegetation in general, including trees, shrubs, vines, ground covers, turf and grasses, ornamental grasses, bulbs, corms, tubers, or herbaceous vegetation.

K. Root Flare: Also called "trunk flare." The area at the base of the plant's stem or trunk where the stem or trunk broadens to form roots;

the area of transition between the root system and the stem or trunk.

L. Subgrade: Surface or elevation of subsoil remaining after excavation is complete, or the top surface of a fill or backfill before planting soil is placed.

M. Subsoil: All soil beneath the topsoil layer of the soil profile, and typified by the lack of organic matter and soil organisms.

N. Compost Sock: Tubular mesh sleeve designed to containing compost.

1.4 ABBREVIATIONS

A. TYP.: Typical.

B. MIN.: Minimum

C. MAX.: Maximum

1.5 DELIVERY, STORAGE AND HANDLING

A. Notify the Contracting Officer’s Representative (COR) of the delivery schedule in advance so the plant material may be inspected upon arrival at the job site. Remove unacceptable plant and landscape materials from the job site immediately.

B. 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, as applicable.

32 90 00-3

Keep seed and other packaged materials in dry storage away from contaminants.

C. Bulk Materials:

1. Do not dump or store bulk materials near structures, utilities, walkways and pavements, or on existing turf areas or plants. Keep bulk materials in dry storage away from contaminants.

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, gypsum, compost, and soil amendments, and rock mulches with appropriate certificates.

D. Do not prune trees before delivery. Protect bark, branches, and root systems from sun scald, drying, wind burn, sweating, whipping, and other handling and tying damage. Do not bend or bind-tie trees in such a manner as to destroy their natural shape. Provide protective covering of plants during shipping and delivery. Do not drop plants during delivery and handling.

E. Handle planting stock by root ball.

F. The use of equipment such as "tree spades" is permitted provided the plant balls are sized in accordance with ANSI Z60.1 and tops are protected from damage.

G. Deliver plants after preparations for planting have been completed, and install immediately. If planting is delayed more than 6 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.

1. Set balled stock on ground and cover ball with soil, compost, sawdust, or other acceptable material.

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

3. 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.

H. Harvest, deliver, store, and handle sod according to requirements in

TPI's "Guideline Specifications to Turfgrass Sodding". Deliver sod in

32 90 00-4 time for planting within 24 hours of harvesting. Protect sod from breakage, seed contamination and drying.

I. All pesticides and herbicides shall be properly labeled and registered with the U.S. Department of Agriculture. Deliver materials in original, unopened containers showing, certified analysis, name and address of manufacturer, product label, manufacturer’s application instructions specific to the project and indication of conformance with state and federal laws, as applicable.

1.6 PROJECT CONDITIONS

A. 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.

B. Coordinate planting periods with maintenance periods to provide required maintenance from date of Substantial Completion. Plant during one of the following periods:

1. Spring Planting: April 1 to June 1.

2. Fall Planting: September 1 to November 1.

C. Proceed with planting only when existing and forecasted weather conditions permit planting to be performed when beneficial and optimum results may be obtained. Apply products during favorable weather conditions according to manufacturer's written instructions and warranty requirements.

D. Plant trees after finish grades are established and before planting shrubs and groundcovers unless otherwise indicated.

1. When planting trees after planting groundcovers, protect groundcovers areas, and promptly repair damage caused by planting operations.

E. Plant trees after finish grades and irrigation system components are established, but not before irrigation system components are installed, tested and approved.

1. When planting trees protect irrigation system components and promptly repair damage caused by planting operations.

1.7 QUALITY ASSURANCE:

A. Products Criteria:

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

32 90 00-5

2. A nameplate bearing manufacturer's name or trademark, including model number, shall be securely affixed in a conspicuous place on equipment. In addition, the model number shall be cast integrally with equipment, stamped, or otherwise permanently marked on each item of equipment.

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

1. Installer shall be a member in good standing of either the

Professional Landcare Network or the American Nursery and Landscape

Association with 5 years experience in landscape installation.

2. Require Installer to maintain an experienced full-time supervisor on

Project site when work is in progress.

3. Installer's field supervisor shall have certification in one of the following categories from the Professional Landcare Network and submit one copy of certificate to the Contracting Officer’s

Representative:

a. Certified Landscape Technician (CLT) - Exterior, with installation, maintenance, irrigation, designated CLT-Exterior.

b. Certified Ornamental Landscape Professional designated COLP.

4. Pesticide Applicator: Licensed in state of project, commercial.

C. A qualified Arborist shall be licensed and required to submit one copy of license to the Contracting Officer’s Representative.

D. Include an independent or university 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.

E. Soil Fertility and Agricultural Suitability-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. Acceptable Soil Testing Laboratories are:

a. Soil and Plant Laboratory, Inc., (503) 557-4959.

b. A & L Western Agricultural Laboratories, (503) 968-9225.

c. Western Laboratories, Inc, (800) 658-3858.

F. Soil Analyses: Furnish soil analyses by a qualified soil-testing laboratory stating:

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1. Soil Composition: USDA particle size analysis indicating percentages of sand, silt and clay, and percent organic matter.

2. Macro and micro nutrient fertility tests as determined by pH, salinity, nitrate nitrogen, ammonium nitrogen, phosphate phosphorous potassium, calcium, magnesium, soluble copper, zinc, manganese, iron, saturation extract boron and sodium analyses.

3. Recommendations by the soil testing lab for fertilizer and soil amendments in pounds per 1,000 square foot or tons per acre, as necessary to correct soil deficiencies.

G. Compost Testing Laboratory Qualifications: An independent laboratory, with the experience and capability to conduct the testing indicated following U.S. Composting Council Seal of Testing Assurance (STA) procedures, or equivalent.

1. Acceptable STA Compost Testing Laboratories are:

a. A & L Western Agricultural Laboratories, (503) 968-9225.

b. Control Laboratories, (831) 724-5422.

H. Compost Analysis: Provide documentation from supplier that compost has reached a monitored temperature of 140 degrees Fahrenheit for at least one week. Engage an independent soil testing laboratory to test representative sample(s) of compost and furnish compost analysis report for the following parameters:

1. Percent organic matter, percent moisture, percent inerts (foreign matter), pH, soluble salts, and particle size.

2. Nutrient content, including: Nitrogen (N), Phosphorus (P), Potassium

(K), Calcium (Ca), and Magnesium (Mg) and Sulfur (S).

3. Trace Metals, including: Arsenic (As), Cadmium (Cd), Chromium (Cr), Copper (Cu), Lead (Pb), Mercury (Hg), Nickel (Ni), and Zinc (Zn).

4. Maturity Indicator. Provide bio-assay results. Provide Carbon-

Nitrogen ratio.

5. Stability Indicator: Provide respiration test results.

I. For each unamended soil type, furnish soil analysis and a written report by a qualified soil-testing laboratory 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 the soil.

32 90 00-7

1. Testing methods and written recommendations shall comply with USDA's

Handbook No. 60, “Diagnosis and Improvement of Saline and Alkali

Soils”.

2. The soil-testing laboratory shall oversee soil sampling; with depth, location, and number of samples to be taken per instructions from

Contracting Officer’s Representative. A minimum of 3 representative samples shall be taken from varied locations for each soil to be used or amended for planting purposes.

3. Report suitability of tested soil for plant growth.

a. Based upon the test results, state recommendations for soil treatments and soil amendments to be incorporated. State recommendations in weight per 1000 sq. ft. (92.9 sq. m) or volume per cu. yd. (0.76 cu. m) for nitrogen, phosphorus, and potash nutrients and soil amendments to be added to produce satisfactory planting soil suitable for healthy, viable plants.

b. Report presence of problem salts, minerals, or heavy metals, including aluminum, arsenic, barium, cadmium, chromium, cobalt, lead, lithium, and vanadium. If such problem materials are present, provide additional recommendations for corrective action.

J. Provide quality, size, genus, species, variety and sources of plants indicated, complying with applicable requirements in ANSI Z60.1.

K. Measure according to ANSI Z60.1. Do not prune to obtain required sizes.

1. Measure trees with branches and trunks or canes in their normal position. Take height measurements from or near the top of the root flare for field-grown stock and container grown stock. Measure main body of tree for height and spread; do not measure branches or roots tip to tip. Take caliper measurements 6 inches (150 mm) above the root flare for trees up to 4 inch (100 mm) caliper size, and 12 inches (300 mm) above the root flare for larger sizes.

2. Measure other plants with stems, petioles, and foliage in their normal position.

L. Contracting Officer’s Representative may observe plant material either at place of growth or at site before planting for compliance with requirements for genus, species, variety, cultivar, size, and quality.

Contracting Officer’s Representative retains right to observe trees further for size and condition of balls and root systems, pests, disease symptoms, injuries, and latent defects and to reject unsatisfactory or

32 90 00-8 defective material at any time during progress of work. Remove rejected trees immediately from Project site.

1. Notify Contracting Officer’s Representative of plant material sources

14 days in advance of delivery to site.

M. Include product label and manufacturer's literature and data for pesticides and herbicides.

N. Conduct a pre-installation conference at Project site.

1.8 SUBMITTALS

A. Submit product data for each type of product indicated:

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

2. Include EPA approved product label, SDS (Safety Data Sheet) and manufacturer's application instructions specific to the Project.

3. Include color photographs in digital format of each required species and size of plant material as it will be furnished to the Project.

Take photographs from an angle depicting true size and condition of the typical plant to be furnished. Include a scale rod or other measuring device in each photograph. For species where more than 20 plants are required, include a minimum of 3 photographs showing the average plant, the best quality plant, and the worst quality plant to be furnished. Identify each photograph with the full scientific name of the plant, plant size, and name of the growing nursery.

B. Submit samples and manufacturer’s literature for each of the following for approval before work is started.

1. Mineral Mulch: 1 quart (1-liter) volume of each mineral mulch required; in sealed plastic bags labeled with product description, product name, and source(s) of rock. Each Sample shall be typical of the lot of material to be delivered and installed on the site; and provide an accurate indication of rock sizes, color, and texture.

2. Compost: 1 quart (1-liter) volume of each organic and compost 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. Organic Mulch: 1 quart (1-liter) volume of each organic and compost mulch required; in sealed plastic bags labeled with composition of materials by percentage of weight and source of mulch. Each Sample

32 90 00-9 shall be typical of the lot of material to be furnished; provide an accurate representation of color, texture, and organic makeup.

4. Weed Control Fabric: 12 by 12 inches (300mm by 300mm).

5. Tree Wrap: Width of panel by 12 inches (300 mm).

C. 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, and include names and addresses of owners' contact persons.

D. Prior to delivery, provide notarized certificates attesting that each type of manufactured product, from the manufacturer, meet the requirements specified and shall be submitted to the Contracting

Officer’s Representative for approval:

1. Plant Materials (Department of Agriculture certification by State

Nursery Inspector declaring material to be free from insects and disease).

2. Manufacturer's certified analysis of standard products.

3. Analysis of other materials by a recognized laboratory made according to methods established by the Association of Official Analytical

Chemists, where applicable.

E. Soil Test Reports: For existing native surface topsoil.

F. Compost Analysis: Provide analysis for one representative sample of compost minimum 30 days prior to compost being delivered to Project

Site.

G. Maintenance Instructions: Recommended procedures to be established by

Government for maintenance of plants during a calendar year. Submit before start of required maintenance periods.

1.9 PLANT ESTABLISHMENT PERIOD

A. The establishment period for plants shall begin immediately after installation, with the approval of the Contracting Officer’s

Representative, and continue until the date that the Government accepts the project or phase for beneficial use and occupancy. During the

Establishment Period the Contractor shall maintain the plants and turf as required in Part 3.

1.10 PLANT MAINTENANCE SERVICE

A. Provide initial maintenance service for trees shrubs, ground cover and other plants by skilled employees of landscape Installer. Begin maintenance immediately after plants are installed and continue until

32 90 00-10 plantings are acceptably healthy and well established but for not less than maintenance period below.

1. Maintenance Period: 12 months from date of Substantial Completion.

1.11 APPLICABLE PUBLICATIONS

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

B. American National Standards Institute (ANSI):

Z60.1-04................Nursery Stock

C. Association of Official Seed Analysts (AOSA): Rules for Testing Seed.

D. American Society For Testing And Materials (ASTM):

C136-06.................Sieve Analysis of Fine and Coarse Aggregates

C602-07.................Agricultural Liming Materials

D5268-07................Topsoil Used for Landscaping Purposes

E. Hortus Third: A Concise Dictionary of Plants Cultivated in the United

States and Canada.

F. Turfgrass Producers International (TPI): Guideline Specifications to

Turfgrass Sodding.

G. United States Department of Agriculture (USDA): Handbook No. 60

Diagnosis and Improvement of Saline and Alkali Soils; Federal Seed Act

Regulations.

H. National Cemetery Administration (NCA):

Handbook 3420-08........Turfgrass Maintenance

Appendix TL-08..........Cemetery Construction Requirements for

Turfgrass and Landscape Plant Material

Installation

1.12 WARRANTY

A. The Contractor shall remedy any defect due to faulty material or workmanship and pay for any damage to other work resulting therefrom within a period of one year from final acceptance, unless noted otherwise below. Further, the Contractor will provide all manufacturer's and supplier's written guarantees and warranties covering materials and equipment furnished under this Contract.

32 90 00-11

1. Plant and Turf Warranty Periods will begin from the date of

Government acceptance of the project or phase for beneficial use and occupancy.

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

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

2. The Contractor shall have completed, located, and installed all plants according to the plans and specifications. All plants are expected to be living and in a healthy condition at the time of final inspection.

3. The Contractor will replace any dead plant material immediately, unless required to plant in the succeeding planting season. Provide extended warranty for period equal to original warranty period for replacement plant materials. Replacement plant warranty will begin on the day the work is completed.

4. The Government will reinspect all plants at the end of the Warranty

Period. The Contractor will replace any dead, missing, or defective plant material immediately. The Warranty Period will end on the date of this inspection provided the Contractor has complied with the warranty work required by this specification. The Contractor shall also comply with the following requirements:

a. Replace plants that are more than 25 percent dead, missing or defective plant material prior to final inspection.

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

c. Mulch and weed plant beds and saucers. Just prior to final inspection, treat these areas to a second application of approved pre-emergent herbicide.

d. Complete remedial measures directed by the Contracting Officer’s

Representative to ensure plant and turf survival.

e. Repair damage caused while making plant replacements.

B. Installer agrees to repair or replace plantings and accessories that fail in materials, workmanship, or growth within specified warranty period.

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

32 90 00-12

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

b. Structural failures including plantings falling or blowing over.

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

PART 2 - PRODUCTS

2.1 PLANT MATERIAL

A. Plant materials: ANSI Z60.1; will conform to the varieties specified and be true to botanical name as listed in Hortus Third; nursery-grown plants material true to genus, species, variety, cultivar, stem form, shearing, and other features indicated on Drawings; healthy, normal and unbroken root systems developed by transplanting or root pruning; well-shaped, fully branched, healthy, vigorous stock, densely foliated when in leaf; free of disease, pests, eggs, larvae, and defects such as knots, sun scald, windburn, injuries, abrasions, and disfigurement.

1. Trees-deciduous and evergreen: Single trunked with a single leader, unless otherwise indicated; symmetrically developed deciduous trees of uniform habit of growth; straight boles or stems; free from objectionable disfigurements; evergreen trees with well-developed symmetrical tops, with typical spread of branches for each particular species or variety. 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 3/4 inch (19 mm) in diameter; or with stem girdling roots will be rejected.

2. Provide plants well established in removable containers, integral containers, or formed homogeneous soil sections. Plants shall have been grown under climatic conditions similar to those in the locality of the project. Spray all plants budding into leaf or having soft growth with an anti-desiccant at the nursery before digging or transporting.

3. The minimum acceptable sizes of all plants, measured before pruning with branches in normal position, shall conform to the measurements designated. Plants larger in size than specified may be used with the approval of the Contracting Officer’s Representative, with no change

32 90 00-13 in the contract price. When larger plants are used, increase the ball of earth or spread of roots in accordance with ANSI Z60.1.

4. Provide nursery grown plant material conforming to the requirements and recommendations of ANSI Z60.1. Dig and prepare plants for shipment in a manner that will not cause damage to branches, shape, and future development after planting.

5. Balled and burlapped (B&B) plant ball sizes and ratios will conform to ANSI Z60.1, consisting of firm, natural balls of soil wrapped firmly with burlap or strong cloth and tied.

6. Container grown plants shall have sufficient root growth to hold the earth intact when removed from containers, but shall not be root bound.

7. Make substitutions only when a plant (or alternates as specified) is not obtainable and the Contracting Officer’s Representative authorizes a change order providing for use of the nearest equivalent obtainable size or variety of plant with the same essential characteristics and an equitable adjustment of the contract price.

8. 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. Label each plant of each variety, size, and caliper with a securely attached, waterproof and weather-resistant label bearing legible the correct 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 indicated in the Plant Schedule or Plant Legend shown on the Drawings. Labels shall be securely attached and not be removed.

2.2 INORGANIC SOIL AMENDMENTS

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

2.3 ORGANIC SOIL AMENDMENTS

A. Organic matter: Commercially prepared compost. 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 1/2 inch (13 mm) 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:

32 90 00-14

1. Organic Matter Content: 50 to 60 percent of dry weight.

2. Feedstock: Agricultural, food, or industrial residuals; biosolids;

yard trimmings; or source-separated or compostable mixed solid waste.

B. Wood derivatives: Decomposed, nitrogen-treated sawdust, ground bark, or wood waste; of uniform texture and free of chips, stones, sticks, soil, or toxic materials.

2.4 PLANT FERTILIZERS

A. Soil Test: Evaluate existing soil conditions and requirements prior to fertilizer selection and application to minimize the use of all fertilizers and chemical products. Obtain approval of Contracting

Officer’s Representative for allowable products, product alternatives, scheduling and application procedures. Evaluate existing weather and site conditions prior to application. Apply products during favorable weather and site conditions according to manufacturer's written instructions and warranty requirements. Fertilizers to be registered and approved by EPA, acceptable to authorities having jurisdiction, and of type recommended by manufacturer applicable to specific areas as required for Project conditions and application. Provide commercial grade plant fertilizers, free flowing, uniform in composition and conforms to applicable state and federal regulations.

B. Commercial Fertilizer: Commercial-grade complete fertilizer of neutral character, consisting of slow-release nitrogen, 50 percent derived from natural organic sources of urea formaldehyde, phosphorous, and potassium in the following composition:

1. Composition shall be nitrogen, phosphorous, and potassium in amounts recommended in soil reports from a qualified soil-testing laboratory.

C. Slow-Release Fertilizer: Granular or pellet fertilizer consisting of 50 percent water-insoluble nitrogen, phosphorus, and potassium in the following composition:

1. Composition shall be nitrogen, phosphorous, and potassium in amounts recommended in soil reports from a qualified soil-testing laboratory.

D. Plant Tablets: Tightly compressed chip type, long-lasting, slow-release, commercial-grade planting fertilizer in tablet form. Tablets shall break down with soil bacteria, converting nutrients into a form that can be absorbed by plant roots.

1. Size: 21-gram tablets.

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2. Nutrient Composition shall be 20 percent nitrogen, 10 percent phosphorous, and 5 percent potassium, by weight plus micronutrients.

2.5 PLANTING SOILS

A. Planting Soil: ASTM D5268 topsoil, with pH range of 6.5 to 7.5, a minimum of 10 percent organic material content; free of stones 1 inch

(25 mm) or larger in any dimension and other extraneous materials harmful to plant growth. Mix ASTM D5268 topsoil with the following soil amendments and fertilizers as recommended by the soils analysis.

B. Existing Planting Soil: Existing, native surface topsoil formed under natural conditions retained during excavation process and stockpiled on-site. Verify suitability of native surface topsoil to produce viable planting soil. Clean soil of roots, plants, sod, stones, clay lumps, and other extraneous materials harmful to plant growth.

1. Supplement with planting soil when quantities are insufficient.

2. Mix existing, native surface topsoil with soil amendments and fertilizers as recommended by the soils analysis.

C. Imported Planting Soil: Imported topsoil or manufactured topsoil from off-site sources can be used if sufficient topsoil is not available on site to meet the depth as specified herein. The Contractor shall furnish imported topsoil. At least 10 days prior to topsoil delivery, notify the

Contracting Officer’s Representative of the source(s) from which topsoil is to be furnished. Obtain imported topsoil displaced from naturally well-drained construction or mining sites where topsoil occurs at least

4 inches (100 mm) deep; do not obtain from agricultural land, bogs, or marshes.

2.6 BIO-STIMULANTS

A. Mycorrhizae: Endomycorrhizal granules inoculum consisting of the following 4 species blend of propagules of arbuscular mycorrhizal fungi:

Glomus intraradices, Glomus mosseae, Glomus aggregatum, and Glomus etunicatum plus organic sources of nutrients. Minimum 100,000 spores/propagules per pound.

B. Available Products:

1. 'MycoApply Endo' by Mycorrhizal Applications, Inc.; ‘Endo Granular' by Mycorrhizal Products;

2. ‘Sanctuary 8-0-4 + Mycorrhizae’ probiotic at 20 lbs / 1000 with wetting agent.

3. Or approved equal.

32 90 00-16

2.7 WEED-CONTROL BARRIERS

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

950 liter per minute flow rate per sq. meter. (90 gal. per minute flow rate per sq. ft.), 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.

2.8 MULCH

A. Mineral Mulch: Hard, durable stone, washed free of loam, sand, clay, and other foreign substances, of following type, size range, and color:

1. Type: Rounded riverbed gravel or smooth-faced stone.

2. Size Range: 3 inches (75 mm) maximum 1 inch (25 mm) minimum in accordance with ASTM C136.

3. Color: Bright mix of pastel colors (pink, gray, tan) to match existing cobble and acceptable to Contracting Officer’s

Representative.

a. ‘Arizona Salt River Rock’ as available from Bedrock Boulders &

Landscape Products (Tel.: 619.442.0574); or approved equal.

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

1. Type: Shredded hardwood; Ground or shredded bark; or Wood and bark chips.

2. Size Range shall be 1 inch (25 mm) maximum, 1/2 inch (13 mm) minimum.

3. Color shall be natural to match existing used on the cemetery.

2.9 SEED

A. Chaparral Sage Scrub Mix

Botanical Name Common Name Bulk

Pounds/

Acre

Min %

PLS*

Acmispon glaber (Deerweed) 6.00 81

Artemisia californica (California Sagebrush) 2.00 18

Encelia farinose (Brittlebush) 2.00 30

Eriogonum fasciculatum (California Buckwheat) 8.00 10

Eriodictyon trichocalyx (Hairy Yerba Santa) 2.00 83

Eschscholzia californica (California Poppy) 8.00 90

Festuca microstachys (Small Fescue) 0.50 79

32 90 00-17

Hesperoyucca whipplei (Our Lord's Candle) 1.00 68

Lasthenia californica (Dwarf Goldfields) 2.00 83

Lupinus hirsutissimus (Stinging Lupine) 0.50 3

Phacelia ciliate (Great Valley Phacelia) 2.00 90

Salvia apiana (White Sage) 2.00 35

Salvia mellifera (Black Sage) 2.00 60

Stipa pulchra (Purple Needlegrass) 4.00 73

Trifolium willdenovii (Tomcat Clover) 2.00 88

B. Seeding rate: 1 pound per 1000 square feet (44 lbs per acre)

C. Approved Supplier: S&S Seeds Tel. (805) 684-0436; or approved equal.

2.10 COMPOST

A. Compost: 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 1/2 inch (12 mm) sieve; soluble salt content of 2 to 5 decisiemens/m; not exceeding 0.5 percent inert contaminants and free of substances toxic to plantings; and as follows:

1. Organic Matter Content: 50 to 60 percent of dry weight.

2. Feedstock: Agricultural, food, or industrial residuals; biosolids;

yard trimmings; or source-separated or compostable mixed solid waste.

2.11 COMPOST/SEED MIXTURE

A. A uniform mixture of compost, seed, fertilizer and bio-stimulants.

Incorporate seed at the prescribed seeding rate of 1-pound of seed per 6 cubic yards of compost for a 2-inch thick compost blanket layer.

2.12 COMPOST SOCK

A. Sock: Biodegradable 200mm (8-inch) diameter tubular roll containing compost/seed mixture, and fertilizer. Sock to be fabricated from coir or burlap and be beige in color. Longevity of fabric shall be 12 months min./24 months max.

B. Wood stakes: 18mm x 18mm (¾” x ¾”) fir stake, length as required.

C. Rope Tie: 9mm (3/8”) jute twine.

2.13 EROSION CONTROL NETTING

A. Erosion Control Net: 100% biodegradable woven jute blanket. Heavy, twisted jute mesh weighing approximately 498 to 700 grams per meter

(14.7 to 20.6 ounces per square yard) and 1200 mm (4 feet) wide with mesh openings approximately 19 mm (3/4 inch) square; 50% to 55% open

32 90 00-18 area. Longevity of fabric shall be 12 months min./24 months max. For use on slopes with 2:1 gradient.

B. Erosion Control Material Anchors: As recommended by erosion control material manufacturer.

C. Available Supplier/Product: ‘Belton Industries’/ Anti-Wash Geojute; or approved equal.

2.14 TACKIFIER

A. M-Binder tackifier botanical glue used to stabilize compost blanket. M-

Binder is derived from the seed of the plantego plant (Plantago insularis), 100% organic, non-toxic and biodegradable.

2.15 TREE WRAP

A. Crinkle paper tree wrap: Two thicknesses of crinkled paper cemented together with a layer of bituminous material. Wrapping material shall be a minimum of 4 inches (100 mm) in width and have a stretch factor of 33

1/3 percent. Twine for tying shall be lightly tarred medium or coarse sisal yarn.

B. Extruded, translucent, twin walled polypropylene protection board sheets: 1/8 inch (3 mm) thick, 6 ft. (1800 mm) long tree shelters may be utilized for short trunk trees 3 inch (75 mm) caliper or less.

C. Breathable synthetic fabric tree wrap: White in color, delivered in 3 inch (75 mm) wide rolls. Material shall be specifically manufactured for tree wrapping.

D. Tree wrap shall be secured to the trunk using bio-degradable tape suitable for nursery use and which is expected to degrade in sunlight in less than 2 years after installation.

2.16 TREE STAKES

A. Tree Tie: Plastic chain-type, approximately 1 inch wide by 1/8 inch thick.

B. Tree Support Stakes: Rough sawn hardwood free of knots, rot, cross grain, bark, long slivers, or other defects that impair strength.

Minimum 50 mm (2 inches) diameter by 2.4 m (8 feet) long, pointed at one end.

2.17 WATER

A. Water shall not contain elements toxic to plant life. Water to be obtained from Government at no cost to the Contractor.

32 90 00-19

2.18 ANTIDESICCANT

A. Antidesiccant: An emulsion specifically manufactured for agricultural use that will provide a protective film over plant surfaces permeable enough to permit transpiration.

2.19 PESTICIDES

A. Consider IPM (Integrated Pest Management) practices to minimize the use of all pesticides and chemical products. Obtain approval of Chief

Engineer for allowable products, product alternatives, scheduling and application procedures. Evaluate existing weather and site conditions prior to application. Apply products during favorable weather and site conditions according to manufacturer's written instructions and warranty requirements. Pesticides to be 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.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas to receive plants 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.

32 90 00-20

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

5. Special conditions may exist that warrant a variance in the specified planting dates or conditions. Submit a written request to the

Contracting Officer’s Representative stating the special conditions and proposal variance.

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 Contracting Officer’s Representative and replace with new planting soil.

3.2 PREPARATION

A. Protect structures, utilities, sidewalks, pavements, and other facilities 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 locations and areas for multiple plantings.

Stake locations, outline areas, adjust locations when requested, and obtain approval by the Contracting Officer’s Representative of layout before excavating or planting. The Contracting Officer’s Representative may approve adjustments to plant material locations to meet field conditions.

D. Apply anti-desiccant to trees 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 are moved in full leaf, spray with antidesiccant at nursery before moving and again two weeks after planting.

E. Wrap trees with burlap fabric over trunks, branches, stems, twigs, and foliage to protect from wind and other damage during digging, handling, and transportation.

3.3 PLANTING AREA ESTABLISHMENT

A. Loosen subgrade of planting areas to a minimum depth of 12 inches (300 mm). Remove stones larger than 2 inches (50 mm) in any dimension and

32 90 00-21 sticks, roots, rubbish, and other extraneous matter and legally dispose of them off Government's property.

1. Spread topsoil, apply soil amendments and fertilizer on surface, and thoroughly blend planting soil.

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

b. Mix soil amendments (i.e., soil sulfur and/or gypsum) with dry soil before mixing fertilizer.

2. Spread planting soil to a depth of 12 inches (300 mm) but not less than required to meet finish grades after natural settlement. Do not spread if planting soil or subgrade is frozen, muddy, or excessively wet.

a. Spread approximately one-half the thickness of planting soil over loosened subgrade. Mix thoroughly into top 4 inches (100 mm) of subgrade. Spread remainder of planting soil.

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

C. Before planting, obtain Contracting Officer’s Representative acceptance of finish grading; restore planting areas if eroded or otherwise disturbed after finish grading.

3.4 EXCAVATION FOR TREES

A. Planting Pits and Trenches: Excavate circular planting pits with sides sloping at a 45 degree angle. Excavations with vertical sides are not acceptable. Trim perimeter of bottom leaving center area of bottom raised slightly to support root ball and assist in drainage away from center. Do not further disturb base. Ensure that root ball will sit on undisturbed base soil to prevent settling. Scarify sides of planting pit glazed or smoothed during excavation.

1. Excavate approximately 2 times as wide as ball diameter for balled and burlapped, balled and potted, container-grown, fabric bag-grown stock.

2. Do not excavate deeper than depth of the root ball, measured from the root flare to the bottom of the root ball.

3. If area under the plant was initially dug too deep, add soil to raise it to the correct level and thoroughly tamp the added soil to prevent settling.

32 90 00-22

4. 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.

5. Maintain supervision of excavations during working hours.

6. Keep excavations covered or otherwise protected after working hours and when unattended by Installer's personnel.

7. Use topsoil to form earth saucers or water basins for watering around plants. Basins to be 3 inches (75 mm) high for trees.

B. Subsoil removed from excavations may not be used as planting soil.

C. Notify Contracting Officer’s Representative if unexpected rock or obstructions detrimental to trees are encountered in excavations.

D. Notify Contracting Officer’s Representative if subsoil conditions evidence unexpected water seepage or retention in tree planting pits.

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

3.5 TREE, SHRUB, AND VINE PLANTING

A. Prior to 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 plants plumb and in center of planting pit or trench with root flare

1 inch (25 mm) above adjacent finish grades.

1. Use native topsoil amended with compost and bio-stimulants for planting backfill mix unless noted otherwise. Thoroughly mix 1 part of compost to 5 parts of native topsoil to produce planting backfill mix.

2. Use native topsoil treated with bio-stimulants for backfill of

California native plants. Use no compost in the backfill mix for native plants.

3. Carefully remove root ball from container without damaging root ball or plant. Do not use planting stock if root ball is cracked or broken before or during planting operation.

4. Remove bottom of boxes, before setting boxed trees. Do not use planting stock if root ball is cracked or broken before or during

32 90 00-23 planting operation. Cut metal bands and remove remainder of box material completely from the planting pit.

5. Backfill around root ball in layers, tamping to settle soil and eliminate voids and air pockets. When planting pit is approximately one-half full, water thoroughly before placing remainder of backfill.

Repeat watering until no more water is absorbed.

6. Place plant tablets in each planting pit when pit is approximately one-half filled; in quantities recommended by fertilizer manufacturer. Place tablets beside soil-covered roots about 1 inch

(25 mm) from root tips; do not place tablets in bottom of the hole or touching the roots.

7. Continue backfilling process. Water again after placing and tamping final layer of soil.

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.

3.6 BIOSTIMULANT APPLICATION

A. Apply mycorrhizal inoculum to backfill mix for plants.

B. For trees: Add 5 pounds of granular endo mycorrhizal product to 1 cubic yard of plant backfill mix. Thoroughly incorporate the product into the backfill mix.

C. For Compost Blanket and Compost Socks: Add 5 pounds of granular endo mycorrhizal product to 1 cubic yard of compost. Thoroughly incorporate the product into the compost.

3.7 TREE PRUNING

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

B. Prune according to standard professional horticultural and arboricultural practices. Unless otherwise indicated by Contracting

Officer’s Representative, do not cut tree leaders; remove only injured, dying, or dead branches from trees; and prune to retain natural character.

C. Do not apply pruning paint to wounds.

3.8 TREE WRAP

A. Wrap the trunks of deciduous trees immediately after planting. Wrap the trunks of deciduous trees, 1-1/2 inches (40 mm) or greater in caliber with the specified material beginning at the base and extending to the

32 90 00-24 first branches. Remove wrapping after one year. When using crinkled paper wrap, securely tie wrapping at the top and bottom and at 18 inch

(450 mm) maximum intervals with twine.

3.9 MULCH INSTALLATION

A. Mineral (Inert) Mulch:

1. Excavate to lines and levels required and install weed-control barriers before mulching with mineral mulch according to manufacturer's written instructions. Completely cover area to be mulched with weed-control barrier, overlapping edges a minimum of 12 inches (300 mm) and secure seams with galvanized steel pins.

2. Mineral Mulch at Curb Lines: Apply 3 inch (75 mm) average thickness of cobblestone mulch in a 24-inch wide band abutting curb lines as indicated, and finish level with adjacent finish grades. Do not place mineral mulch within 12 inches of trunks or stems of plants.

B. Organic Mulch:

1. Mulch backfilled surfaces of planting areas and other areas indicated. Keep mulch out of plant crowns and off buildings, pavements, utility standards, pedestals, and other structures.

2. Organic Mulch in Planting Areas: Apply 3 inch (75 mm) average thickness of organic mulch throughout planting beds. Do not place organic mulch within 3 inches (75 mm) of trunks or stems.

3.10 SLOPE SCARIFICATION

A. Scarify existing cut slopes by etching 2-inches minimum deep by 2-inches wide horizontal grooves into the exposed face of the slope at 6-inch on centers, maximum.

B. Remove and dispose sloughed-off materials from scarification activities to a location on the cemetery as directed by the COR.

3.11 COMPOST SOCKS

A. Fill compost socks with approved compost/seed mixture and tie ends with twine.

B. Place compost socks horizontally on slopes, at top, midpoint at bottom of slopes. Stake and tie compost socks as indicated. Overlap ends of adjoining compost socks a minimum of 24 inches and secure together with twine.

3.12 COMPOST BLANKET

A. Apply a 2-inch layer of approved compost/seed mixture to scarified slope.

32 90 00-25

B. Apply tackifier at 80-100 lbs. per acre per manufacturer’s printed instructions for dry application.

C. Extend the compost blanket 3 feet minimum beyond the shoulder of the slope and down to the edge of the mineral mulch band.

D. Cover compost blanket with jute netting running from top to bottom of slope at the edge of the mineral mulch band. Secure netting to slope by burying ends of fabric as indicated. Overlap adjacent panels of jute netting a minimum of 12 inches and secure to slope with steel staples.

E. Irrigate compost blanket to keep blanket and surface of slope uniformly moist to germinate seeds.

3.13 PLANT MAINTENANCE

A. Maintain plantings by pruning, cultivating, watering, weeding, fertilizing, mulching, restoring plant saucers, resetting to proper grades or vertical position, and performing other…