Amend_1_specs.pdf

Green Brook Segment U and Segment T, Bound Brook, NJ GREENBROOKSEGUT

SECTION 31 05 19

GEOTEXTILE

08/08

PART 1 GENERAL

1.1 REFERENCES

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

ASTM INTERNATIONAL (ASTM)

ASTM D4354 (2012) Sampling of Geosynthetics for Testing

ASTM D4355 (2007) Deterioration of Geotextiles from Exposure to Light, Moisture and Heat in a Xenon-Arc Type Apparatus

ASTM D4491 (1999a; R 2009) Water Permeability of Geotextiles by Permittivity

ASTM D4533 (2011) Trapezoid Tearing Strength of Geotextiles

ASTM D4632 (2008) Grab Breaking Load and Elongation of Geotextiles

ASTM D4751 (2012) Determining Apparent Opening Size of a Geotextile

ASTM D4759 (2011) Determining the Specification Conformance of Geosynthetics

ASTM D4833 (2007) Index Puncture Resistance of Geotextiles, Geomembranes, and Related Products

ASTM D4873 (2002; R 2009) Identification, Storage, and Handling of Geosynthetic Rolls and Samples

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00.00 18 SUBMITTAL PROCEDURES:

SD-03 Product Data

Thread Manufacturing Quality Control Sampling and Testing

SECTION 31 05 19 Page 1

SD-04 Samples

Quality Assurance Samples and Tests

SD-07 Certificates

Geotextile

1.3 DELIVERY, STORAGE, AND HANDLING

Deliver, store, and handle geotextile in accordance with ASTM D4873.

1.3.1 Delivery

Notify the Contracting Officer a minimum of 24 hours prior to delivery and unloading of geotextile rolls packaged in an opaque, waterproof, protective plastic wrapping. The plastic wrapping shall not be removed until deployment. If quality assurance samples are collected, immediately rewrap rolls with the plastic wrapping. Geotextile or plastic wrapping damaged during storage or handling shall be repaired or replaced, as directed.

Label each roll with the manufacturer's name, geotextile type, roll number, roll dimensions (length, width, gross weight), and date manufactured.

1.3.2 Storage

Protect rolls of geotextile from construction equipment, chemicals, sparks and flames, temperatures in excess of 160 degrees F, or any other environmental condition that may damage the physical properties of the geotextile. To protect geotextile from becoming saturated, either elevate rolls off the ground or place them on a sacrificial sheet of plastic in an area where water will not accumulate.

1.3.3 Handling

Handle and unload geotextile rolls with load carrying straps, a fork lift with a stinger bar, or an axial bar assembly. Rolls shall not be dragged along the ground, lifted by one end, or dropped to the ground.

PART 2 PRODUCTS

2.1 RAW MATERIALS

A minimum of 7 days prior to scheduled use, submit manufacturer's certificate of compliance stating that the geotextile meets the requirements of this section. For needle punched geotextiles, the manufacturer shall also certify that the geotextile has been continuously inspected using permanent on-line full-width metal detectors and does not contain any needles which could damage other geosynthetic layers. The certificate of compliance shall be attested to by a person having legal authority to bind the geotextile manufacturer.

2.1.1 Geotextile

Provide geotextile that is a non-woven pervious sheet of polymeric material consisting of long-chain synthetic polymers composed of at least 95 percent by weight polyolefins, polyesters, or polyamides. The use of woven slit film geotextiles (i.e. geotextiles made from yarns of a flat, tape-like character) will not be allowed. Add stabilizers and/or inhibitors to the

SECTION 31 05 19 Page 2 base polymer, as needed, to make the filaments resistant to deterioration by ultraviolet light, oxidation, and heat exposure. Regrind material, which consists of edge trimmings and other scraps that have never reached the consumer, may be used to produce the geotextile. Post-consumer recycled material may also be used. Geotextile shall be formed into a network such that the filaments or yarns retain dimensional stability relative to each other, including the edges. Geotextiles shall meet the requirements specified in Table 1. Where applicable, Table 1 property values represent minimum average roll values (MARV) in the weakest principal direction. Values for AOS represent maximum average roll values.

TABLE 1

MINIMUM PHYSICAL REQUIREMENTS FOR DRAINAGE GEOTEXTILE

PROPERTY UNITS ACCEPTABLE VALUES TEST METHOD

GRAB STRENGTH LBS 250 ASTM D4632

PUNCTURE LBS 700 ASTM D4833

TRAPEZOID TEAR LBS 100 ASTM D4533

APPARENT OPENING

SIZE

U.S. SIEVE 100 ASTM D4751

PERMITTIVITY SEC -1 0.8 ASTM D4491

ULTRAVIOLET

DEGRADATION

PERCENT 70 AT 500 HRS ASTM D4355

2.1.2 Thread

A minimum of 7 days prior to scheduled use, submit proposed thread type for sewn seams along with data sheets showing the physical properties of the thread. Construct sewn seams with high-strength polyester, nylon, or other approved thread type. Thread shall have ultraviolet light stability equivalent to the geotextile and the color shall contrast with the geotextile.

2.2 MANUFACTURING QUALITY CONTROL SAMPLING AND TESTING

The Manufacturer is responsible for establishing and maintaining a quality control program to assure compliance with the requirements of the specification. A minimum of 7 days prior to scheduled use, submit manufacturer's quality control manual. Documentation describing the quality control program shall be made available upon request. Perform manufacturing quality control sampling and testing in accordance with the manufacturer's approved quality control manual. As a minimum, geotextiles

SECTION 31 05 19 Page 3 shall be randomly sampled for testing in accordance with ASTM D4354, Procedure A. Acceptance of geotextile shall be in accordance with ASTM D4759. Tests not meeting the specified requirements will result in the rejection of applicable rolls.

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Subgrade Preparation

The surface underlying the geotextile shall be smooth and free of ruts or protrusions which could damage the geotextile. Subgrade materials and compaction requirements shall be in accordance with Sections 31 00 00 and 35 31 19.

3.1.2 Placement

Notify the Contracting Officer a minimum of 24 hours prior to installation of geotextile. Geotextile rolls which are damaged or contain imperfections shall be repaired or replaced as directed. The geotextile shall be laid flat and smooth so that it is in direct contact with the subgrade. The geotextile shall also be free of tensile stresses, folds, and wrinkles.

3.2 SEAMS

3.2.1 Overlap Seams

Continuously overlap geotextile panels a minimum of 24 inches at all longitudinal and transverse joints. Lap the upstream panels over the downstream panels.

3.3 PROTECTION

Protect the geotextile during installation from clogging, tears, and other damage. Damaged geotextile shall be repaired or replaced as directed. Use adequate ballast (e.g. sand bags) to prevent uplift by wind or water. The geotextile shall not be left uncovered for more than 14 days after installation.

3.4 REPAIRS

Repair torn or damaged geotextile. Clogged areas of geotextile shall be removed. Perform repairs by placing a patch of the same type of geotextile over the damaged area. The patch shall extend a minimum of 24 inches beyond the edge of the damaged area. Patches shall be continuously fastened using approved methods. The machine direction of the patch shall be aligned with the machine direction of the geotextile being repaired.

Remove and replace geotextile rolls which cannot be repaired. Repairs shall be performed at no additional cost to the Government

3.5 COVERING

Do not cover geotextile prior to inspection and approval by the Contracting Officer. Place cover soil in a manner that prevents soil from entering the geotextile overlap zone, prevents tensile stress from being mobilized in the geotextile, and prevents wrinkles from folding over onto themselves.

On side slopes, soil backfill shall be placed from the bottom of the slope upward. Cover soil shall not be dropped onto the geotextile from a height

SECTION 31 05 19 Page 4 greater than 3 feet. No equipment shall be operated directly on top of the geotextile without approval of the Contracting Officer. Use equipment with ground pressures less than 7 psi to place the first lift over the geotextile. A minimum of 12 inches of soil shall be maintained between full-scale construction equipment and the geotextile. Cover soil material type, compaction, and testing requirements are described in Section 31 00 00 EARTHWORK. Equipment placing cover soil shall not stop abruptly, make sharp turns, spin their wheels, or travel at speeds exceeding 5 mph.

-- End of Section --

SECTION 31 05 19 Page 5

SECTION 32 93 00 Page 1

SECTION 32 93 00

EXTERIOR PLANTS

07/06

PART 1 GENERAL

1.1 REFERENCES

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

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

A YSI Z60 .l (1996) Nursery Stock

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the ''G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Bidders Experience; G, RO

The Contractor shall submit within thirty days of the award of the contract, the name and qualifications of the Sub/Contractor who will be selected for transplantation of plant materials. The qualifications must include a description of project history, available tree moving equipment and staff qualifications.

A minimum of sixty days prior to planting, the Contractor shall submit to the Contracting Officer for approval, the manufacturer information (specifications) for all planting soil supplements including fertilizers, inoculants, etc. and for proposed tree shelters. T he Contractor must identify quantities of each shrub and tree species.

Any problems with obtaining any of the specified planting materials should be forwarded in writing to the Contracting Officer. The cause of the acquisition problem(s) shall be discussed in full and a list of vendors contacted shall be included. The Contractor should be aware that more than one vendor may be required to obtain all the necessary plant materials. Suggestions concerning appropriate substitutions may be included with the correspondence for review.

Any proposed variance from the plant propagation guidelines shall be approved in writing by the Contracting Officer prior to initiating the change(s). Upon request by the Contracting

SECTION 32 93 00 Page 2

Officer, the Contractor shall supply a complete methodology concerning the proposed or completed collection and propagation methods including dates of collection, collection statistics, method of collection, growth media, cell sizes, rooting treatments and recommendations concerning future propagation methods including pruning, fertilizer treatments and recommendations concerning future propagation methods.

The Contractor shall submit a proposed Layout Plan to the Contracting Officer sixty days prior to the planting which shall be clearly marked and documented. The layout plan will address any site design changes. The Contractor shall supply the Contracting Officer with a map indicating the location of each of the proposed field stockpiling (field caches). The number and locations of the field stockpiling sites shall be developed in such a manner as to promote an efficient planting operation. This field stockpiling site plan shall be subject to approval by the Contracting Officer, and whenever directed by the Contracting Officer, additional stockpiling areas shall be prepared by the Contractor at the locations selected by the Contracting Officer at no additional cost to the Government.

Guarantee Period

The contractor shall submit a signed one-year plant Guarantee one-year plant guarantee at least 30 calendar days prior to commencement of planting operations.

SD-06 Test Reports

For bulk deliveries, submit a chemical analysis test at least 10 calendar days prior to scheduled soil amendment delivery.

1.3 SCOPE OF WORK

Under this Item, the Contractor shall excavate all plant pits and furnish, plant, maintain, and replace all Plant Material in accordance with the plans and specifications, or as directed by the Contracting Officer.

The Contractor shall be liable for any damages to property caused by planting operations, and all areas and construction disturbed shall be restored to their original conditions, to the satisfaction of the Contracting Officer.

SECTION 32 93 00 Page 3

1.4 GENERAL:

1.4.1 Bidders Experience

Bidders shall have successfully completed a minimum of five projects, each over 1 acre in size, during the past five years. The Bidder will have demonstrated experience in planting native vegetation and native meadows.

The Bidder should submit a description of five projects for review by the Government.

1.4.2 Plant Names

Plant names, size, and grading standards shall conform to those prepared by the American Association of Nurserymen Horticultural Standards, 1995 Edition, unless otherwise specified. No substitution shall be permitted, except with the written permission of the Contracting Officer and the approval of the Design Division. All plant materials delivered to the site shall be labeled.

1.5 QUALITY AND INSPECTIONS

1.5.1 Quality

All plants shall be typical of their species or variety. They shall have normal, well-developed branches and vigorous fibrous root systems. They shall be sound, healthy, vigorous plants free from defects, disfiguring knots, sun scald injuries, dead or broken branches, abrasions of the bark, plant diseases, insect eggs, borers, and all forms of infestation. The Contracting Officer will tag for rejection all plant material that does not meet the above specifications, and trees having damaged or missing leaders, multiple leaders, Y-crotches, or indications of topping or heading back.

1.5.2 Inspections

The Contractor shall be responsible for all certificates of inspection of plants that may be required by federal, state, or other authorities to accompany shipments of plants, and such certificates shall be filed with the Contracting Officer prior to acceptance of the materials.

1.5.3 Quality Control Records

The Contractor shall submit a Quality Control Record which should include at a minimum:

1. Inspection/Rejection of Plant Material,

2. Results of all soil testing and resulting soil amendment activities,

3. All replacements or substitutions of plant materials,

4. Record of watering and mulching activities,

5. Record of herbivory measures.

The Quality Control Record shall be submitted four times during the acceptance and guarantee period: 1) One week following installation activities, 2) At 30-day acceptance dates, 3) Within one week following guarantee inspections, and 4) Within one week following any acceptance inspection re-plantings, and 5) Eleven months following initial installation (prior to the any final guarantee re-plantings). If the landscaped area does not meet guarantee requirements and replanting is required, the Contractor shall be required to complete and submit another

SECTION 32 93 00 Page 4 cycle of quality control records limited to 5) One week following guarantee re-plantings and 6) At the 30-day acceptance date for the re-plantings.

1.5.4 Acceptance

The plant material shall be evaluated for acceptance thirty (30) days after all the following have been completed or satisfied:

1. The plant material has been satisfactorily installed.

No compensation shall be made for the installation or the cost of the material for plants not properly planted, including those plants whose roots are exposed at the time of acceptance. During the acceptance period, the Contractor shall be responsible for ensuring that the planting areas are kept moist. Plant materials determined to be dead or seriously weakened shall not be accepted. The Contractor is responsible for replacing all rejected material at the Contractor's cost during the same spring or fall planting window as the initial installation or during the next immediate planting window. All re-planted material has a 30-day acceptance inspection requirement.

1.5.5 Guarantee Period

In addition to the 30-day acceptance requirements, a guarantee inspection for plant material will be required and the Contractor shall be responsible to replace unacceptable material within one year of the initial installation to meet a minimum of 85% survival.

Plant material that is initially installed during a spring planting window ( March 1st to May 1st for evergreen and April 1st to May 15th for deciduous) will be guarantee inspected the immediate following late summer/fall monitoring window during Aug 15 - September 30 of the same calendar year. All woody plants will be counted individually and documented. The contractor shall be responsible for a minimum survival of 85% acceptable material at the time of the guarantee inspection. If the area does not meet 85%, the Contractor will schedule a re-planting of the required number of plants during the following spring planting window. If the Contractor has scheduled re-planting of material based on not meeting acceptance upon the initial 30-day inspection during the first fall planting window, the contractor can count those plant quantities towards the re-planting requirements to meet 85% (if these plants are delivered healthy and pass acceptance inspection during that fall). The re-planting requirements will be completed if the guarantee re-plantings are found

SECTION 32 93 00 Page 5 acceptable by the Contracting Officer upon their delivery and installation.

If the Contractor brings unacceptable material for a guarantee re-planting in the spring, the contractor will replant during that same spring planting window for any rejected material. There will be no guarantee beyond initial acceptance for guarantee re-plantings; therefore, closing the loop and limiting the guarantee inspection and replanting requirements to an approximate 1-year period.

Plant material that is initially installed during a fall planting window (September 1st to October 15th for evergreen material or October 15th to December 1st for deciduous material) will be guarantee inspected the immediate following spring monitoring window (May 15-June 15). All woody plants will be counted individually and documented. The contractor shall be responsible for a minimum survival of 85% acceptable material at the time of the guarantee inspection. If the area does not meet 85%, the Contractor will schedule a re-planting of the required number of plants during the following fall planting window. If the Contractor has scheduled re-planting of material based on not meeting acceptance upon the initial 30-day inspection during the first spring planting window, the contractor can count those plant quantities towards the re-planting requirements to meet 85% (if these plants are delivered healthy and pass acceptance inspection during that spring). The planting requirements of this Contract will be completed if the guarantee re-plantings are found acceptable by the Contracting Officer upon their delivery and installation. If the Contractor brings unacceptable material for a guarantee re-planting in the fall, the contractor will replant during that same fall planting window for any rejected material. There will be no guarantee beyond initial acceptance for guarantee re-plantings; therefore, closing the loop and limiting the guarantee inspection and replanting requirements to an approximate 1-year period.

The Contractor will provide the Contracting Officer with a re-planting schedule based on guarantee inspections no later than 30-days post guarantee inspection to properly plan for re-planting during the next immediate planting window. As with initial installation, the Contractor shall be responsible to submit for Contracting Officer's approval, all plant material source information prior to the re-planting window.

The cost of replacements(s) shall be included in the unit price bid for the various furnished items of the contract. All replanting shall be done at no additional cost to the Government. Replants shall be in accordance with plans and specifications. Survival rate inspection will be conducted by the Contracting Officer or Government Representative.

Where vandalism or related causes are agreed by the Contracting Officer as the cause for plant material replacement, the Contractor shall not be responsible for replacement during the guarantee period after final acceptance.

Where dead plant material has been identified, whether due to natural causes or vandalism, the Contractor shall remove the dead material, including stakes, and wire (if applicable) within three (3) weeks of notification

Where dead plant material has been identified, whether due to natural causes or vandalism, the Contractor shall remove the dead plant material, including stakes, burlap, tree irrigation bags, if any, and wire. Earth will be leveled and new topsoil and seed, or appropriate paving material, added at the direction of the Contracting Officer to eliminate any

SECTION 32 93 00 Page 6 hazardous conditions.

1.5.6 Final Inspection Reports

The Contractor shall include findings of the guarantee inspection in a Quality Control Report. Results of the inspections shall include, but not be limited to photographs of dead/dying plants to be replaced, clear identification on drawings of location of said plants, notes on probable cause of damage or ill-health, photograph of replacement planting(s) and additional protective measures, if taken.

PART 2 PRODUCTS

2.1 TOPSOIL

A plant shall be dimensioned as it stands in its natural position. Trees up to and including four-inch (4") caliper size shall be measured six inches (6") above ground level. Trees over four inches (4'') in caliper size shall be measured twelve inches (12") above ground level. Stock furnished shall be a fair average of the minimum and maximum sizes specified. Larger plants cut back to sizes specified will not be accepted.

Reference: l\NSI Z60.l American Standard for Nursery Stock (2004) American Landscape and Nursery Assocation.

2.2 PREPARATION OF PLANTS

All precautions customary in good trade practice shall be taken in preparing plants for moving. Workmanship that fails to meet the highest standards will be rejected. All plants shall be dug immediately before moving unless otherwise specified. All plants shall be dug to retain as many fibrous roots as possible. Oversized or exceptionally heavy plants are acceptable if the size of the ball or spread of roots is proportionately increased, to the satisfaction of the Contracting Officer. Loose, broken, or manufactured balls will be rejected.

Bare root plants shall be puddled immediately after digging by immersing the roots in a thick mixture of clay and water so as to completely coat the roots with clay.

2.3 DELIVERY

Plants shall be packed, transported, and handled with utmost care to insure adequate protection against injury. When transported in closed vehicles, plants shall receive adequate ventilation to prevent sweating. When transported in open vehicles, plants shall be protected by tarpaulins or other suitable cover material. All bare root plants shall be adequately protected from drying out and immediately after inspection shall be heeled in moist soil. Balled and burlapped plants shall be set on the ground and the ball covered with soil. Until planted, all material shall be properly maintained and kept adequately moist, to the satisfaction of the Contracting Officer.

Inspections of the plant materials, including root systems, may be made by the Contracting Officer. All dormant plant materials shall be installed within 48 hours and all non-dormant plants shall be installed within 36 hours. Shipments of plants may be staggered over several days.

SECTION 32 93 00 Page 7

2.4 MYCORRHIZAL FUNGI INOCULANT

Shall be applied by means of a three ounce (3 oz.) premeasured dry formulation packet, such as Mycor Tree Saver Transplant®, as manufactured by Plant Health Care, Inc., Pittsburgh, PA. Rhizanova Tree Transplant, as manufactured by Becker Underwood, Inc., Ames, IA, or approved equal.

Packets shall contain, as a minimum: one thousand (1000) live spores of Vesicular-Arbuscular fungi, including: Entrephosphora columbiana, Glomus clarum, Glomus etunicatum, and Glomus sp.; seventeen million five hundred thousand (17,500,000) live spores of Ectomycorrhizal fungi (Pisolithus tinctorius); Biostimulant ingrediants including Yucca schidigera extract;

soluble sea kelp extract derived from Ascophylum nodosum; humic acids; and acrylamide copolymer gel as a water absorbent medium. Mycorrhizal fungi inoculant shall be added to the top six to eight inches (6-8") of backfill soil in each planting pit and thoroughly mixed to distribute the inoculant.

The material shall be applied according to the following chart:

Size of rootball or container Ounces per plant

1 gallon 1 2 gal. 2 3 gal. 3 5 gal. 3 7 gal. 3 10 gal. 3 15 gal. 3

20" B&B 6 24" B&B 9 30" B&B 9 36" B&B 12 42" B&B 12

2.5 FERTILIZER TABLETS

Shall be applied by means of a three ounce (3 oz.) premeasured dry formulation packet, such as Mycor Tree Saver Transplant®, as manufactured by Plant Health Care, Inc., Pittsburgh, PA. Rhizanova Tree Transplant, as manufactured by Becker Underwood, Inc., Ames, IA, or approved equal.

Packets shall contain, as a minimum: one thousand (1000) live spores of Vesicular-Arbuscular fungi, including: Entrephosphora columbiana, Glomus clarum, Glomus etunicatum, and Glomus sp.; seventeen million five hundred thousand (17,500,000) live spores of Ectomycorrhizal fungi (Pisolithus tinctorius); Biostimulant ingrediants including Yucca schidigera extract;

soluble sea kelp extract derived from Ascophylum nodosum; humic acids; and acrylamide copolymer gel as a water absorbent medium. Mycorrhizal fungi inoculant shall be added to the top six to eight inches (6-8") of backfill soil in each planting pit and thoroughly mixed to distribute the inoculant.

The material shall be applied according to the following chart:

Size of rootball or container Ounces per plant

1 gallon 1 2 gal. 2 3 gal. 2 5 gal. 3 7 gal. 3 10 gal. 4 15 gal. 5 20-24" B&B 5 30-36" B&B 6 42-48" B&B 7

SECTION 32 93 00 Page 8

2.6 WATER RETENTION ADDITIVES

Water Retention Additives shall be a granular polyacrylamide polymer of a potassium base and not a sodium base that slowly releases moisture into the root·zone such as Terra Sorb, as manufactured by Plant Health Care, Inc., 440 William Pitt Way, Pittsburgh, Pa., or approved equal. When planting trees, each tree shall receive three (3) ounces or amount specified by product instructions. Half should be added at a depth of 8-10 inches and the other half just below the finished surface. When planting shrubs, perennials or annuals, the product should be applied as per product instructions.

2.7 SHREDDED BARK MULCH

Shredded bark mulch shall be a natural forest product composed of shredded bark or wood not exceeding three inches (3") length and one (1") in width.

Mulch shall be derived from tree material, not from wood waste or by-products like sawdust, shredded pallets, or other debris. It shall be of a uniform grade with no additives or any other treatment. Mulch with leaves, twigs, and/or debris shall not be acceptable. The pH factor shall range from 5.8-6.2.

SECTION 32 93 00 Page 9

PART 3 EXECUTION

3.1 PLANTING OPERATIONS

3.1.1 Time of Planting

Unless otherwise directed by the Contracting Officer, deciduous material shall be planted from March 1st to May 1st and from October 15th to December 15st or as approved by the Contracting Officer.

3.1.2 Planting Conditions

The Contracting Officer may stop planting due to weather or any other conditions that are not favorable to planting. Unsatisfactory planting conditions include, but are not limited to, temperature above 75 Farenheit, relative humidity below 40%, wind speed greater than 12 miles/hour, or available soil moisture less than SO%. Planting may also be postponed if ground freezing temperatures are forecasted for several days immediately following the planting.

3.1.3 Location

Site characteristics, such as overhead power lines, existing vegetation, and infrastructure items, such as curbs and sidewalks, shall be considered.

Trees that grow taller than thirty feet (30') should not be planted directly under power lines. When the design allows, the tree leader shall be offset from power lines.

3.1.4 Water Source

The Contractor shall not commence installation until a water source is available on-site. At the time of planting, the soil around each plant shall be thoroughly saturated with water. If local sources are not available, the Contractor shall provide a water truck or other source.

Watering trucks shall not be driven over planted areas. Run-off and puddling shall be prevented.

3.2 EXCAVATION OF PLANT PITS

Sizes of plant pits shall be as shown on the planting plan. Planting soil shall be unamended existing soil excavated from the planting pit, unless amendments or topsoil are specified elsewhere in the contract. When subsurface obstructions are encountered during excavation, the Contractor shall restore the disturbed area to its original condition.

When planting in Structural Soil and the depth of the rootball exceeds the depth to the filter fabric underlying the Structural Soil installation, the Contractor shall score the filter fabric in an 'X' and excavate sufficiently to permit the top of the ball to rest at finished grade. All plant material in all planting applications should be checked to ensure the crown hasn't been buried during containerization or balling and burlapping.

If so, the additional soil should be removed and the plant set at the correct finished grade.

Each tree shall be planted in an individual pit as specified. Pits for balled and burlapped material shall be dug three (3) times the size of the root ball in diameter and only deep enough so that the root ball sits on undisturbed subgrade, except in situations where curbs and/or adjacent pavements prevent achievement of planting pit dimensions. Sizes of

SECTION 32 93 00 Page 10 restricted planting pits (i.e. street trees) shall be at the maximum width allowed, and the same depth as the root ball being planted. Any changes in the planting pit sizes shall be broad enough to accommodate the roots fully extended and only deep enough so that the uppermost roots will be just below the original grade.

No plant pits shall be dug until the proposed locations have been staked on the ground by the Contractor and approved by the Contracting Officer. No plant pits shall be backfilled until planting is approved by the Contracting Officer. All pits shall have vertical sides unless otherwise directed. Excavated material, when found to be unsuitable, shall be removed from the site and replaced with topsoil, as directed by the Contracting Officer.

Extreme care shall be taken not to excavate to a depth greater than required. The subgrade below the root ball shall be tamped slightly to prevent settlement. Where, in the opinion of the Contracting Officer, the subgrade material is unsuitable, the size of the plant pits shall be dug one-half (1/2) wider than normally required. The bottom and sides of the pit shall be backfilled with the existing soil, without amendments, and thoroughly worked into place to remove air pockets/voids.

3.3 TRANSPLANTING PLANT MATERIAL

Under these Items, the Contractor shall TRANSPLANT PLANT MATERIAL as delineated on the plans and maintain and replace all plant material specified in the following Plant Schedule, in accordance with the plans, specifications, and directions of the Construction Officer. All plant material shall be selected and tagged by the Construction Officer from existing plant material on the site.

This work is to be done only by a Sub/Contractor specializing in tree moving and tree services. The Contractor shall be liable for any damages to property by transplanting operations and all areas and construction disturbed shall be restored to their original condition, to the satisfaction of the Construction Officer.

Planting shall be performed by an approved Contractor. All material may be inspected by the Contracting Officer as it is removed from the truck, prior to placing in an approved storage area or the designated planting site. The Contractor is responsible for quality control monitoring for delivered materials.

All rejected material shall be removed from the site and replaced with acceptable material at no additional cost to the Government.

Bare root material shall be adequately protected from drying out and immediately heeled in after inspection. The bundles of heeled-in plants shall be set upright on the ground, covered with mulch, and kept adequately moist until the time of installation. Until the time of planting, all plant material shall be stored in an approved location, securely fenced and maintained, to the satisfaction of the Contracting Officer, at no additional cost to the Government. All plants not planted immediately shall be watered as necessary to maintain optimal health until planting.

Place balled and burlapped material in the prepared planting pit by lifting, and carry it by the rootball. Set the tree or shrub straight and in the center of the pit, with the most desirable side facing toward the predominant view. All material shall set, after settlement, at the same level at which they have grown in the nursery. Care shall be exercised in setting the plants plumb. All ropes, stones, etc. shall be removed from the

SECTION 32 93 00 Page 11 pit before backfilling. Soil for backfill shall be loose and friable and not frozen or compacted.

Cut and remove rope or wire from the top fifty percent (50%) of the rootball and pull the burlap back to the edge of the ball. Remove as much woven product and twine as possible. All plastic or synthetic fabric must be removed from the ball at the time of planting. Any wire basket enclosed root ball will need to have at least two-thirds (2/3) of the wire basket cut away from the sides and top of the ball and removed. Remaining lateral wires must be cut to prevent future root interference. Wire must not be galvanized or aluminum wire.

Balled and burlapped plants shall be handled so that the ball will not be loosened. After the soil has been thoroughly firmed under and around the ball, the burlap shall be cut away from the upper half of the ball, and the remaining burlap adjusted to prevent the formation of air pockets. Where directed by the Contracting Officer, the burlap shall be entirely removed.

Soil shall be firmed at six to eight inch (6-8") intervals and thoroughly settled with water. Plants with exposed roots shall be placed in the proper position in the center of the pit after the soil in the bottom of the pit has been firmed. Roots shall be arranged in their natural position and existing soil worked in among them, firmed at intervals, and mycorrhizal inoculant, fertilizer tablets and water retention additive worked into the top eight inches (8") of backfill soil in the correct proportions. The plants shall then be thoroughly settled in with water. Care shall be taken to avoid bruising or breaking the roots when tamping the soil. All large and fleshy roots that are bruised or broken shall be pruned, making a clean cut before planting.

3.4 FINISHING SURFACE AFTER BACKFILLING

The Contractor shall cultivate and rake over finished planting areas and shall leave the site in an orderly condition. On level ground or slight slopes, a shallow basin a little larger than the diameter of the plant pit shall be left around each plant, as shown on the plans, or as directed by the Contracting Officer. On steep slopes, the soil on the lower side of the plant shall be graded in such a manner that it will catch and hold water, as shown on the plans, or as directed by the Contracting Officer. Upon completion of planting, all debris and waste material resulting from the planting operation shall be removed from the project area, and the affected area raked and cleaned as necessary.

All work done in preparing shallow basins or grading of plant pits on steep slopes and regrading and reseeding of plant saucers shall be deemed included in the unit price per plant. All berms raised for shallow basins in level or gently sloping grass areas shall be removed at the end of the guarantee period, as well as tree stakes and irrigation bags, if present.

This topsoil shall be cast evenly over the surrounding grass areas and grass seed sown over the removed berms.

After the shallow tree basins and plant saucers and shrub beds have been prepared, they shall be mulched, three to four inches (3-4") in depth, inside and along the outside edge of the basins/saucers. Perennial beds shall be mulched to a two inch (2") depth. Mulch shall consist of shredded bark not exceeding three inches (3") in length and one inch (1") in width.

Mulch contaminated with leaves, twigs, and/or debris shall not be acceptable. Only mulch derived from tree material, not from wood waste products like sawdust, shall be acceptable. Mulch for tree pits and shrub and/ or perennial beds shall be included in the bid price.

SECTION 32 93 00 Page 12

3.5 STAKING

All staking shall be done immediately after planting and all stakes and wire shall be maintained. Plants shall stand plumb after staking. Stakes shall be of white cedar with bark attached. They may have a maximum allowable deflection of ten percent (10%). Stakes of the dimensions shown on the plans and details shall be placed outside the root ball and shall be driven to the depths indicated on the plans and details. Stakes shall be fastened to the tree with double No. 12 gauge annealed galvanized steel wire run through a suitable length of new reinforced one-half inch (1/2") rubber hose. Stakes shall be set parallel to the contours, curbs, or walks, unless otherwise directed by the Contracting Officer. Stakes, wires, hoses and tree irrigation bags shall be removed by the Contractor at the end of the guarantee period and shall become their property.

3.6 PRUNING

Broken or badly bruised branches shall be removed with a clean cut. Do not cut leaders or use wound paint or dressing to treat cut areas. Crossed branches shall be pruned with a sharp tool in such a manner as to preserve and encourage the plant's natural growth form. The crowns of young trees should not be cut back to compensate for root loss.

3.7 CLEAN UP OF SITE

At the end of each day's work, the Contractor shall remove all trash and other debris resulting from his work from the site. At all times, rubbish and trash generated from the Contractor shall be kept clear of vehicular circulation throughout the site. All drains on site which have accumulated soil, mulch or any other material due to the planting operation, shall be cleaned. All ruts created by landscape equipment shall be raked and reseeded.

3.8 MAINTENANCE

Maintenance shall include watering, weeding, cultivating, control of insects, fungal infections, and other diseases by means of spraying with an approved insecticide or fungicide, pruning, adjustment and repair of stakes, anchors, and wires, repair of minor washouts and gullies up to twelve inches (12") in depth, and other horticultural operations necessary for the proper growth of all trees, as well as replacement of plants stolen or vandalized prior to the Final Inspection, to a degree judged sufficient for replacement by the Contracting Officer. The Contractor shall also be responsible for keeping the entire area within the contract limits neat in appearance until the final acceptance and completion of the whole work of this contract.

The Contractor shall be responsible for removing all tree stakes, non-biodegradable anchors and tree tubes one year post-initial installation or re-planting of the plant material. The Contractor is responsible for proper removal of vegetation support and protection materials so as to not damage the plant material. The Contractor shall be responsible for restitution/replacement for plant material that is damaged if caused by reckless tree stake, tree anchor or tree shelter material removal.

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