Hermosa Beach City Council
July 9, 2024

CAST-IN-PLACE CONCRETE
033000 - 4

1. Calcium chloride, thyocyanates and admixtures containing chloride ions are not permitted.

2. Other than specified, admixtures complying with the following may be used with the Owner’s approval. Submit manufacturer's data for each product proposed for use.

3. Admixtures shall comply with the following:
a. Air-entraining admixture: ASTM C260, certified by manufacturer to be compatible with other required admixtures.
b. Water-reducing admixture: ASTM C494, Type A.
c. High-range water-reducing admixture (super plasticizer): ASTM C494, Type F or Type G.
d. Water-reducing, non-chloride accelerator admixture: ASTM C494, Type E. e. Water-reducing, retarding admixture: ASTM C494, Type D.

D. Structural adhesive: ASTM C881, 2-component material suitable for use on dry or damp surfaces. Provide material "Type", "Grade", and "Class" to suit Project requirements.

E. Water: Fresh, clean, and free of oil and other materials injurious to concrete.

F. Curing compound:

1. Liquid membrane forming compound containing a fugitive dye, conforming to ASTM C309, Type I, guaranteed not to affect the bond, adhesion, or effectiveness of finishes and surface treatment specified herein to be applied to concrete.

2. Curing compound used on exposed concrete surfaces shall be non-discoloring, fast drying and shall be conclusively demonstrated not to darken or yellow with age.

Curing compound for use on concrete floors to receive adhered floor finishes shall be specially formulated for such use and shall be certified by the manufacturer not to inhibit the bonding qualities of flooring adhesives.

G. Expansion joint materials:

1. Joint filler: Non bituminous product compatible with sealant specified in Section 07 90

00. Use in combination with plastic joint cap.

2. Joint sealant and back up rod: As specified in Section 07 90 00.

H. Non-shrink grout: Cement-based Non-metallic Non-shrink grout with minimum 28-day strength of 5,000 psi.

I. Bonding agent: Latex bonding agent suitable for indoor and outdoor use, conforming to ASTM C-1059.

J. Curing paper: Fiber-reinforced, asphalt-impregnated kraft paper

2.02 MIXES
A. Mix Design: Concrete shall be designed in accordance with the California Building Code, Section 1905.2.3, Method B.

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1. A testing agency under the direction of a California-registered Civil or Structural Engineer shall design all structural concrete mixes required for the Project to provide:
a. Concrete of the compressive strength specified by Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC). Adequate workability and proper consistency to permit concrete to be worked readily into the forms and around reinforcement without segregation and excessive bleeding. b. Other requirements of these Specifications.

2. Determine proper proportions for design mixes in accordance with ACI 211 or ACI 318.

3. Determine proper water cement ratio by preliminary test made in accordance with ASTM C192.

4. Slump limits: Proportion and design mixes to result in the concrete slump at point of placement not exceeding the maximum recommended by ACI 301 and as accepted in the mix design.

5. Tests shall be conducted in accordance with ASTM C39.

B. Cementitious Materials: Limit percentage, by weight, of cementitious materials other than portland cement in concrete as follows:

1. Fly Ash: Use the highest percentage of fly ash replacement possible to meet performance and drying time criteria.

2. Combined Fly Ash and Pozzolan: 25 percent.

C. Submit reports showing results of sieve analysis, mix design and results of compression tests.

Make test specimens from not less than 3 batches of each design mix. The trial batch strength for each mix shall exceed indicated f'c by 25% or a lesser amount based on standard deviations of strength test records according to ACI 318. Do not start concrete production until mixes have been reviewed and are acceptable to the Owner.

D. For each batch, weigh the fine and coarse aggregate separately, measure cement and water separately and introduce separately into the mix so that proportions can be accurately controlled and easily checked.

E. Do not change proportions established by the accepted mix design without the Owner’s written approval.

1. Cement: If concrete develops less than required minimum strength, adjust mix proportions and increase the amount of cement, as necessary.

2. Water: Do not exceed predetermined amount of water because of slowness of discharge from mixer or any other reason, but reduce water to minimum necessary to produce concrete that will work readily into corners and angles of forms and around reinforcements, without segregation of materials and without free water collecting on the surface.

3. Aggregates: Reasonable variations in grading will be allowed because of characteristics of available materials and the need for workability and strength.

F. Concrete mixing:

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1. Mixing and delivery shall comply with ASTM C94, these Specifications, and Building Code requirements.

2. Testing Agency shall perform check sieve analysis of the aggregates being used, check compliance with mix design and the cement being used against mix design; check that water has been removed from the drum before adding mix ingredients for the following load and shall witness the loading of mixing trucks. Testing Agency shall provide a written report of each inspection indicating compliance or non-compliance with these Specifications.

3. In addition to the requirements of ASTM C94 Section 16.1 provide the following information on delivery tickets. Provide a ticket signed by an authorized representative of the batching plant with each mixer truck of concrete delivered to the site. a. Type and brand of cement.
b. Cement content per cu. yd., of concrete.
c. Maximum size of aggregate.
d. Total water content expressed as water/cement ratio.

4. Deliver batch tickets to the Inspector at the site when concrete is delivered.

5. Maintain equipment in proper operating condition, with drums cleaned before charging each batch. Schedule rate of delivery to prevent delay of placing the concrete after mixing, or holding dry-mixed materials too long in the mixer before the addition of water and admixtures.

6. Remove all materials, including water remaining in the ready mix truck drum, completely before ingredients for the following loads are introduced in the drum.

7. Do not use concrete which has not been placed 30 minutes after leaving the mixer, or concrete that is not placed within 60 minutes after water is introduced into the mix.

8. Mix proportions for architectural cast-in-place concrete shall provide a mixture of proper workability and strength for specific type of concrete, with water-cement ratio in accordance with requirements of ACI 303R, Chapter 6. Slump shall be as low as possible, consistent with the particular type of concrete and methods of deposit.

Consistency for any placement shall be constant from batch to batch in order to provide uniformity in the end product. Experiment with dryer concrete lifts gradually toward the top to provide a more uniform appearance. Experimentation may be done on concealed basement walls and/or mock-ups using Architectural concrete mix. a. Make every effort to pour architectural concrete with concrete temperatures between 65 and 85 degrees F. Higher temperatures can result in faster setting rate, and visible flow lines and cold joints.

PART 3 - EXECUTION

3.01 PREPARATION
A. Inspect excavations, subgrades and formwork, as applicable for each placing operation, for accuracy of lines, levels, elevations and dimensions.

B. Moisten, do not saturate, earth subgrade and bearing surfaces. Do not place concrete on muddy subgrade.

C. Wet wood forms thoroughly when they are not treated with form release agent. Wet other

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materials sufficiently to reduce suction and maintain concrete workability.

D. Embedded items including, but not limited to, conduits, anchors and rough hardware, built into concrete as indicated or required.

1. Embed bolts, inserts and other items in the concrete. Secure accurately so that they are not displaced during concrete placing, compacting and finishing operations. Wire tie, nail or bolt embeds securely to forms.

2. Set embedded bolts for materials and equipment attached to concrete to template, layouts and shop drawings. Verify size, length and location of electrical conduits with respect to equipment supports.

3. Fill voids in sleeves, inserts and anchor slots temporarily with readily removable material to prevent entry of concrete in the voids.

E. Install expansion joint fillers where indicated. Cover filler with plastic joint cap and leave in place until ready to receive sealant, then remove and discard plastic cap.

F. Do not proceed with placement of concrete until all conditions are satisfactory.

3.02 CONVEYING
A. Rapid handling: Transport concrete from the mixer to location of placing as rapidly as practical to avoid separation or loss of ingredients.

B. Transporting methods:

1. Use cranes, carts, buggies or other approved means to deliver concrete to final locations. Do not use delivery systems (pipe, chutes, etc.) formed of aluminum for transporting concrete.

2. If pumping of concrete is contemplated, first obtain the Owner’s approval for the design mix and the placement method before placing concrete.

C. Free fall: As dictated by job conditions at each location, but not more than 4 ft. where concrete will be exposed in the Work and 6 ft. at all other locations. Avoid large concentration of concrete in one location, which would produce unacceptable deflection in supporting formwork or steel decking.

D. Concrete flow: Keep surface of concrete level during placing with a minimum of concrete allowed to flow from one position to another. Carry concrete up uniformly for the length of walls being placed to reduce lateral flow of concrete to 5 ft. maximum.

E. Runways: Construct substantial runways and scaffolding to avoid movement and vibration in the forms and reinforcing steel as a result of transporting and placing concrete.

3.03 PLACING
A. General: Comply with the more restrictive requirements of ACI 304 and California Building Code, Section 1905.7 Preparation of Equipment and Place of Deposit. Do not place concrete in or under water.

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B. Consolidation: Thoroughly consolidate concrete and work it around reinforcement and embedded items and into corners and angles of forms, by spading, rodding and tamping to exclude rock pockets, air bubbles and honeycombs, and to obtain required density and strength.

C. Internal vibration:

1. Use mechanical vibrators to consolidate each layer with that previously placed, to completely embed reinforcement and fixtures and to bring fine materials to the faces and top surfaces to produce the proper finish.

2. Assign at least one workman at each location where concrete is being placed to vibrate and consolidate the concrete in forms. Take care to avoid overvibration causing separation of ingredients. Keep extra standby vibrator at the site.

3. Do not use vibrator to move concrete.

D. Flow of concrete: Keep surface of concrete level during placing, with a minimum of concrete allowed to flow from one position to another. Place concrete in a continuous operation until each section or panel has been completed.

E. Record: Keep records showing location, date and time of placement of all concrete on the Project.

F. Floor slabs: Shape slabs to the levels, slopes and elevations indicated and accurately pitch or grade to drainage fittings and fixtures installed in them. Where indicated, depress slabs to receive other finishes.

G. Temperature: Do not place concrete when the temperatures of the materials in contact with the concrete, and the ambient temperature exceed the ranges recommended in ACI 305 and 306, if it is likely to exceed these temperature before the concrete has taken its initial set, unless special precautions recommended by ACI 305 and 306 are provided.

H. Construction joints: Refer also to Section 03 10 00 - Concrete Formwork for additional provisions on this subject. Comply with the more restrictive requirements of the California Building Code, Section 1906.4 Construction Joints and the following:

1. Provide keyways at least 1 1/2" deep in construction joints in slabs; use prefabricated bulkheads specified for slabs.

2. Keep exposed face of construction joints continuously moist from time of initial set until subsequent placing of concrete against them, but not to exceed the curing period.

When not damp, wet (do not saturate) the contact surface of joints for a minimum of 24 hours before placing adjoining concrete.
a. Before placing adjoining concrete, clean contact surfaces to remove all laitance, loosened particles of aggregate or damaged concrete, and expose sound, coarse aggregates solidly embedded in the matrix.
b. To achieve the above, the contact surface may be washed with clean water under pressure (jet blast), may be sandblasted, or in areas which will be concealed from view when the building is completed an approved structural adhesive may be used on clean, structurally sound concrete. Remove wash water

CAST-IN-PLACE CONCRETE
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entirely from surface.
c. If a contact surface becomes coated with foreign materials of any nature after being cleaned, clean again to suitable condition.

I. Tolerances: In compliance with ACI 117 as follows.

1. Paragraph 2.1, except for reference to slip forming.

3.04 FINISH OF FORMED SURFACES
A. Related unformed surfaces:

1. At horizontal offsets and similar unformed surfaces occurring adjacent to formed surfaces, strike off smooth and finish with textured matching the adjacent formed surfaces.

2. Continue the final surface treatment of formed surfaces uniformly across the adjacent unformed surface, unless otherwise shown.

3.05 FINISHING FLATWORK
A. Protection:

1. Protect work of other trades from damage by covering it with heavy kraft paper securely taped in place. Leave protection in place as long as its need exists.

B. Compacting and floating:

1. Bring slabs to proper elevations and strike off with a straightedge. Remove excess water and laitance.
a. Compact and consolidate to embed coarse aggregates.
b. Float and test surfaces with a 10 ft. straightedge and eliminate high and low spots to comply with tolerances specified.
c. From this point, use the methods and tools necessary to produce surface tolerances and finishes specified.

2. Use screeds of type and spacing required to produce specified slab tolerances.

C. Moisture control: In addition to other finishing requirements, use a water fog spray to reduce plastic shrinkage cracks during flatwork finishing operations when conditions of low humidity and/or high temperature exist.

1. Immediately after concrete has been brought to a flat surface and the shiny film of moisture disappears, restore it and maintain until final troweling by applying a light film of moisture with an atomizing type fog sprayer.

2. Use frequent light applications of moisture rather than excessive amounts at any one time. Adjust the amount and frequency of fog spray as required by variable conditions of weather, wind, temperature and humidity.

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D. General requirements:

1. Finish surfaces to produce a uniform appearance throughout area involved and throughout adjacent areas with the same treatment.

2. Use no troweling machines within 12" of electrical junction and outlet boxes which are set to finish flush with concrete floors. Float and trowel such areas by hand with wood floats and steel trowels, taking care to see that concrete is finished flush with box cover and matches adjacent surfaces.

3. Markings:
a. At expansion joints and elsewhere as indicated, mark slabs with a 1/4" radius rounded edging or marking tool. In textured work edge and mark slabs, after texturing, with a combination edging/ smoothing tool approximately 1-1/2" wide.
b. Where saw cutting is indicated, time this operation so that it is performed as soon as concrete has hardened sufficiently to prevent aggregates being dislodged by the saw, but before shrinkage stresses have developed sufficiently to produce cracking. Saw cutting shall be performed on the same day as placement of the concrete.
c. Make marking lines straight, or curved as indicated, equally spaced and parallel to adjacent lines and/or walls, edges and other construction, and of uniform depth and cross section, with intersections accurately formed.

E. Curbs: Immediately after removing forms finish faces and top with a steel trowel.

3.06 CURING
A. General: Coordinate curing methods with requirements of manufacturers whose materials with be applied over concrete surfaces.

B. Formed concrete: Wet the tops and exposed portions of formed concrete, keep moist and at a temperature of not less than 50 deg F until forms are removed, but for not less than 7 days duration. If forms are removed before 14 days after concrete is cast, coat concrete with curing compound as specified for flatwork below.

C. Concrete flatwork:

1. After finishing, spray the specified curing compound uniformly in 2 coats at 90 deg. to each other not exceeding coverage rates recommended by the manufacturer. Inspect treated surfaces daily for 14 days for evidence of drying. Re wet the surfaces and apply a new application of curing compound if premature drying occurs, as soon as can be done after finishing without marring the surfaces.

2. Remove sealer residue after curing period is completed.

3.07 MISCELLANEOUS CONCRETE WORK
A. Pits, trenches and curbs: Construct pits for curbs, gutters, and other miscellaneous concrete

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work.

3.08 PROTECTING/CLEANING
A. Protect finished concrete surfaces from stains, abrasions and other damages until acceptance by the Owner.

1. Cover concrete with non-staining, waterproof tarpaulins or similar form of protection when performing other work adjacent to concrete surfaces.

2. Protect exposed edges of concrete by boarding.

3. Do not allow fire in direct contact with concrete.

4. Provide adequate protection against injurious action by sun or wind.

Prot
ect fresh concrete from heavy rain and mechanical injury.

B. Upon completion, wash and clean exposed concrete and leave free of oil, paint, plaster and foreign substances, ready to receive applied finishes or to be left exposed.

3.09 DEFECTIVE CONCRETE
A. Concrete which does not meet the requirements of the Contract Documents will be deemed defective.

B. Remove defective concrete as directed by the Owner and replace with concrete meeting the requirements of the Contract Documents, at no additional cost to the Owner.

3.10 FIELD QUALITY CONTROL
A. Testing Agency: Engage a qualified testing and inspection agency to perform tests and inspections and to submit reports.

B. Concrete quality control: The following will be performed by the Inspectors. Additional tests may be made by the Contractor, for its convenience, at the Contractor's expense.

1. Samples will be taken during progress of the work to determine slump, compression strength, aggregate sieve analysis, and grout mix tests, with assistance furnished by the Contractor.

2. 4 cylinders will be made for each day's pour, or for each 150 cubic yards, or once for each 5,000 sq. ft. of surface area, whichever is less, for each type of concrete being cast.

3. 1 cylinder shall be tested at 7 days, and 2 cylinders at 28 days. The remaining cylinder will be kept in reserve in case tests are unsatisfactory.

4. Samples will be made in accordance with ASTM C172.

5. Specimens will be made and laboratory cured in accordance with ASTM C31.

6. The 28 day values shall be the criteria for acceptance of concrete regarding strength only.
a. 7 day tests may be regarded as indicative of compliance or non-compliance with the 28 day strength requirements, and the Contractor should be guided accordingly in matter of adjusting proportions, if necessary, and notify the

CAST-IN-PLACE CONCRETE
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Owner.
b. 7 day tests shall also be a guide regarding time for form removal.

7. Slump tests will be made for each set of tests cylinders in accordance with ASTM C143.

C. Tests evaluation:

1. Concrete cylinder test shall be evaluated in accordance with ACI 214 and 318.

2. If 28 day test results indicate that concrete strength is not as specified, core concrete as instructed by the Owner in accordance with ASTM C42.
a. Plug core hole solid as specified in Article 3.04 of this Section. b. The cost of cores, tests and patching shall be borne by the Contractor.

3. In the event that additional core tests do not show strength required, or as determined by load tests made in accordance with ACI 318, the defective concrete shall be removed and replaced, or shall be reinforced as directed by the Owner, at the Contractor's expense.

4. If core tests results fall below design strength specified, adjust the concrete mix or water content for future batches, at no additional cost to the Owner.

END OF SECTION

SITE & STREET FURNISHINGS
129300 - 1
SECTION 129300 – SITE AND STREET FURNISHINGS
PART 1 - GENERAL

1.1 SUMMARY
A. This Section includes materials, labor, apparatus, tools, equipment, temporary construction, transportation, and services necessary for and incidental to performing the proper completion of Work for Site and Street Furnishings, as shown on the Contract Drawings, and as specified herein this Section.

B. Work under this Section consists of, but is not necessarily limited to, furnishing and installing the following:

1. Fitness Equipment (Unit).

2. Salvaged Bench (Unit)

3. Bench (Unit)

1.2 SUBMITTALS
A. General:

1. Collect information into a single Submittal for each element of construction and type of product or equipment identified under this Section for review.

2. To expedite review, Submittal shall be organized and presented into specific sections or headings. Furnish neat, concise, legible, and clearly identifiable information, and sufficiently explicit detail, to enable proper evaluation for Contract compliance.

Highlight catalog, product data, or brochures containing various products, sizes, and materials to show particular item submitted.

3. Submittal Format: As applicable, furnish Submittal as a single electronic digital PDF (Portable Document Format) file.

B. Digital Submittal Information:

1. Product/Material Data: Submit available product/material literature, test reports, color charts, supplied by manufacturer’s, indicating that their products comply with specified requirements. Provide manufacturing source (name, address, and telephone number), and distributor source (name, address, and telephone number) for each product/material type in this Section.

2. Shop Drawings to show component parts, fabrication, installation, and dimensions for items indicated herein this Section.

C. Material Samples:

1. Submit printed manufacturer’s product data, including color charts or color chips of actual fabricated products, for material sample review.

2. Samples of complete Units or parts of Units of the items indicated herein this Section shall be furnished, as requested by Landscape Architect, for review and approval.

3. Submit manufacturer’s written certification that each product complies with specified requirements noted herein.

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D. Submittals under this Article will be rejected and returned without the benefit of review by the Landscape Architect if they are difficult to read due to insufficient scale, poor image quality, or poor drafting quality; or if all of the required information is missing or not presented in the format as requested. Partial Submittals will not be accepted.

E. No Work under this Section shall proceed until all information indicated herein this Article have been reviewed, accepted, and approved by the Landscape Architect, in writing.

1.3 QUALITY ASSURANCE AND CONTROL
A. All materials and Work shall be in accordance with the State Codes and Specifications and other criteria herein specified.

B. Single-Source Responsibility: Obtain furnishing Units from each respective single source with resources to provide products and materials of consistent quality in appearance and physical properties without delaying the Work.

1.4 COORDINATION, SCHEDULING, AND OBSERVATIONS
A. Notify the Contractors performing Work related to installation of Work under this Section in ample time so as to allow sufficient time for them to perform their portion of Work and that progress of Work is not delayed. Verify conditions at the Project Site for Work that affects installation under this Section. Coordinate items of other trades to be furnished and set in place.

B. Field Measurements: Contractor shall take field measurements as required. Report major discrepancies between the Contract Drawings and field dimensions to the Landscape Architect prior to commencing Work. Check adjoining finished surfaces, finished grades, and other Work by accurate field measurements before erection. Maintain required levels and grade elevations.

Review installation procedures and coordinate Work herein this Section with other Work affected.

C. Perform installation operations only when weather is suitable in accordance with locally accepted practices:

D. Coordinating furnishing footings with utility locations. Note potential conflicts to the Landscape Architect.

E. Construction Site Observations: Periodic site observations shall be made by the Landscape Architect during the installation of Work under this Section for compliance with requirements for type, size, and quality. Landscape Architect retains right to observe Work for defects and to reject unsatisfactory or defective material at any time during progress of Work. Contractor shall remove rejected materials immediately from Project site. Contractor shall request, in writing, at least one (1) week in advance of the time when mandatory site observation(s) by the Landscape Architect are required.

1.5 DELIVERY, STORAGE AND HANDLING

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A. Furnishings shall be stored as necessary to prevent damage and shall be in new condition when ready for installation. It shall be the responsibility of the Contractor to install “factory condition” furnishings.

B. Store materials off ground and under cover, away from damp surfaces and inclement weather.

C. Deliver manufactured materials in original, unopened packages or containers with manufacturer's labels intact and legible. Deliver and install materials so as to not delay Work, and install only after preparations for installation have been completed.

1.6 SUBSTITUTIONS
A. Consideration: Materials to be considered equal to the Materials indicated herein this Section shall be reviewed by the Landscape Architect. Materials with equal performance characteristics produced by other Manufacturer’s and/or Distributors may be considered, providing deviations in dimensional size, color, composition, operation, and/or other characteristics do not change the design concept, aesthetic appearance, nor intended performance, as solely judged by the Landscape Architect. The burden of proof on product equality is on the Contractor.

B. Specific reference to Manufacturer’s names and products specified herein are used as standards of quality. This implies no right to the Contractor to substitute other materials without prior written approval by the Landscape Architect for Work under this Section.

C. Materials substituted and installed by the Contractor, without prior written approval by the Landscape Architect, may be rejected. Contractor shall not be entitled to be compensated by the Owner where the Contractor has installed rejected substitutions without receiving prior written approval.

D. Contract Price: Substituted Materials under this Section shall not increase the Contract price.

PART 2 - PRODUCTS

2.1 FITNESS EQUIPMENT (Unit)
A. Fitness Equipment shall consist of the complete assembly, including Fitness Equipment and all applicable mounting hardware.

1. Product: To be furnished to Contractor by City.

B. Install in quantity as indicated on the Contract Drawings.

2.2 SALVAGED BENCH (Unit)
A. Bench shall consist of the complete assembly, including bench seat and all applicable mounting hardware.

1. Product: To be salvaged from site.

B. Install in quantity as indicated on the Contract Drawings.

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2.3 BENCH (Unit)
A. Bench shall consist of the complete assembly, including bench seat and all applicable mounting hardware.

1. Product: To be furnished to Contractor by City.

B. Install in quantity as indicated on the Contract Drawings.

2.4 MISCELLANEOUS MATERIALS
A. Anchors, Fasteners, Fittings, and Hardware: Stainless steel, commercial quality, tamper-proof, vandal & theft resistant, concealed, recessed, and capped or plugged. Provide from manufacturer of site furnishing, as applicable.

B. Non-shrink, Non-metallic Setting Grout: Pre-mixed, factory-packaged, non-staining, noncorrosive, non-gaseous Setting Grout, suitable for exterior applications, complying with ASTM C1107.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Euco N-S Grout, Euclid Chemical Co.
b. Crystex, L&M Construction Chemicals, Inc.
c. Masterflow 713, BASF Building Systems, Inc.
d. Conspec Enduro 50, CONSPEC Marketing and Manufacturing Co. e. Rapidset Grout, Rapidset Products.
f. SikaGrout 212, Sika Corporation.
g. Quikcrete Commercial Grade Fast Set Non-Shrink Grout, Quikcrete Companies. h. 588 Grout, W.R. Meadows.
i. Certi-Grout #1000, Vexcon Chemicals.
j. Or equal, as approved by the Landscape Architect.

C. Erosion-resistant Anchoring Cement: Factory-packaged, non-shrink, non-staining, hydrauliccontrolled expansion cement formulation for mixing with potable water at Project site to create pour-able anchoring, patching, and grouting compound, resistant to erosion from water exposure without needing protection by a sealer or waterproof coating, recommended in writing by manufacturer of site furnishings, for exterior applications.

PART 3 - EXECUTION

3.1 EXAMINATION
A. General: Examine areas and conditions under which site furnishing units are to be installed with Installer present, for compliance with requirements for correct and level finished grade, mounting surfaces, installation tolerances, and other conditions affecting performance.

1. Remedy any conditions detrimental to the proper and timely completion of the Work.

2. Do not proceed with the Work until unsatisfactory conditions have been corrected in a manner acceptable to the Landscape Architect.

B. Verification:

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1. Verify that substrates are stable and capable of supporting the weight of items covered under this Section.

2. Verify that substrates have been adequately prepared to securely anchor those items that will be surface mounted.

3.2 INSTALLATION
A. Fitness Equipment (Unit):

1. Fitness Equipment Unit shall be furnished and located as shown on the Contract Drawings, and as directed by the Contract Specifications. Verify exact locations and orientation with the City’s Representative prior to installation.

2. Use actual Unit(s) to establish all dimensions for installation.

3. Erect and install Unit in accordance with the Manufacturer's written instructions and recommendations. Install Unit(s) plumb, accurately, and in the correct orientation and relationship with other site furnishings, elements and/or paving as shown on the Contract Drawings.

4. Install footings, anchorages, or mounting hardware, as applicable, in strict accordance with the Manufacturer's instructions.
a. Embed Unit into cast-in-place concrete foundation. Foundation for Unit shall be completely set below work of surrounding pavements.

B. Salvaged Bench (Unit):

1. Salvaged Bench Unit shall be salvaged by contractor from site and protected until installed in place as located on the Contract Drawings, and as directed by the Contract Specifications. Verify exact locations (both at ground level and on-structure) with the City prior to installation.

2. Use actual Unit(s) to establish all dimensions for installation.

3. Erect and install Unit(s) in accordance with the Manufacturer's instructions and recommendations. Install unit(s) plumb, accurately, and in the correct orientation and relationship with other site furnishings, elements and/or paving as shown on the Contract Drawings.

4. Install all anchorage and mounting hardware, as applicable, in strict accordance with Manufacturer's instructions, and as directed by the City.

C. Bench (Unit):

1. Bench Unit shall be provided to contractor by the city and located as shown on the Contract Drawings, and as directed by the Contract Specifications. Verify exact locations (both at ground level and on-structure) with the City prior to installation.

2. Use actual Unit(s) to establish all dimensions for installation.

3. Erect and install Unit(s) in accordance with the Manufacturer's instructions and recommendations. Install unit(s) plumb, accurately, and in the correct orientation and relationship with other site furnishings, elements and/or paving as shown on the Contract Drawings.

4. Install all anchorage and mounting hardware, as applicable, in strict accordance with Manufacturer's instructions, and as directed by the City.

3.3 PROTECTION

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A. Protect installed furnishings against damage throughout the duration of the construction period, complying with Manufacturer's directions.

1. Remove and replace damaged furnishings as required to deliver factory-condition units at Final Acceptance of Work.

3.4 CLEANING
A. After completing site furnishing installation, inspect components. Remove protective packaging and dispose properly. Remove spots, dirt, and debris. Repair damaged finishes to match original finish, or replace component.

1. Touch-up Painting: Where directed by the Landscape Architect, clean field welds, bolted connections, and abraded areas of the Work. Paint exposed areas with paint or other material as supplied by the Manufacturer of the damaged Unit. Apply by brush, to thickness recommended by paint manufacturer.

END OF SECTION

SITE CLEARING
311000 - 1
SECTION 311000 - SITE CLEARING
PART 1 - GENERAL

1.01 RELATED DOCUMENTS
A. Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC), Sections 300, and 301.

B. City of Hermosa Beach Grading and Construction Permit.

1.02 SUMMARY
A. Section Includes:

1. Protecting existing vegetation to remain.

2. Removing existing vegetation.

3. Clearing and grubbing.

4. Stripping and stockpiling topsoil.

5. Removing above- and below-grade site improvements.

6. Disconnecting, capping or sealing, and removing site utilities.

7. Temporary erosion and sedimentation control.

B. Related Requirements:

1. Section 31 20 00 “Earth Moving”

2. City of Hermosa Beach Grading and Construction Permit.

3. State Water Resources Control Board's (SWRCB) Construction General Permit (CGP)

1.03 DEFINITIONS
A. Subsoil: Soil beneath the level of subgrade; soil beneath the topsoil layers of a naturally occurring soil profile, typified by less than 1 percent organic matter and few soil organisms.

B. Surface Soil: Soil that is present at the top layer of the existing soil profile. In undisturbed areas, surface soil is typically called "topsoil," but in disturbed areas such as urban environments, the surface soil can be subsoil.

C. Topsoil: Top layer of the soil profile consisting of existing native surface topsoil or existing in-place surface soil; the zone where plant roots grow.

D. Vegetation: Trees, shrubs, groundcovers, grass, and other plants.

1.04 PREINSTALLATION MEETINGS
A. Pre-installation Conference: Conduct conference at Project site.

SITE CLEARING
311000 - 2

1.05 MATERIAL OWNERSHIP
A. Except for materials indicated to be stockpiled or otherwise remain Owner's property, cleared materials shall become Contractor's property and shall be removed from Project site.

1.06 INFORMATIONAL SUBMITTALS
A. Existing Conditions: Documentation of existing trees and plantings, adjoining construction, and site improvements that establishes preconstruction conditions that might be misconstrued as damage caused by site clearing.

1. Use sufficiently detailed photographs or video recordings.

2. Include plans and notations to indicate specific wounds and damage conditions of each tree or other plant designated to remain.

B. Record Drawings: Identifying and accurately showing locations of capped utilities and other subsurface structural, electrical, and mechanical conditions.

1.07 QUALITY ASSURANCE

1.08 FIELD CONDITIONS
A. Traffic: Minimize interference with adjoining roads, streets, walks, and other adjacent occupied or used facilities during site-clearing operations.

1. Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Owner and authorities having jurisdiction.

2. Provide alternate routes around closed or obstructed traffic-ways if required by Owner or authorities having jurisdiction.

B. Utility Locator Service: Notify utility locator service for area where Project is located before site clearing.

C. Do not commence site clearing operations until temporary erosion- and sedimentation- control measures are in place.

D. Soil Stripping, Handling, and Stockpiling: Perform only when the soil is dry or slightly moist.

PART 2 - PRODUCTS

2.01 MATERIALS
A. Satisfactory Soil Material: Requirements for satisfactory soil material are specified in Section 31 20 00 "Earth Moving."

1. Obtain approved borrow soil material off-site when satisfactory soil material is not

SITE CLEARING
311000 - 3
available on-site.

PART 3 - EXECUTION

3.01 PREPARATION
A. Protect and maintain benchmarks and survey control points from disturbance during construction.

B. Protect existing site improvements to remain from damage during construction.

1. Restore damaged improvements to their original condition, as acceptable to Owner.

3.02 TEMPORARY EROSION AND SEDIMENTATION CONTROL
A. Provide temporary erosion and sedimentation control measures to prevent soil erosion and discharge of soil-bearing water runoff or airborne dust to adjacent properties and walkways, State Water Resources Control Board's (SWRCB) Construction General Permit (CGP) and requirements of the City of Hermosa Beach Grading and Construction Permits.

A. Verify that flows of water redirected from construction areas or generated by construction activity do not enter or cross protection zones.

B. Inspect, maintain, and repair erosion- and sedimentation-control measures during construction until permanent vegetation has been established.

C. Remove erosion and sedimentation controls, and restore and stabilize areas disturbed during removal.

3.03 EXISTING UTILITIES
A. Locate, identify, disconnect, and seal or cap utilities indicated to be removed.

1. Arrange with utility companies to shut off indicated utilities.

2. Owner will arrange to shut off indicated utilities when requested by Contractor.

B. Locate, identify, and disconnect utilities indicated to be abandoned in place.

C. Excavate for and remove underground utilities indicated to be removed.

D. Removal of underground utilities is included in earthwork sections.

3.04 CLEARING AND GRUBBING
A. Remove obstructions, trees, shrubs, and other vegetation to permit installation of new construction.

3.05 SITE IMPROVEMENTS

SITE CLEARING
311000 - 4
A. Remove existing above- and below-grade improvements as indicated and necessary to facilitate new construction.

B. Remove slabs, paving, curbs, gutters, and aggregate base as indicated.

1. Unless existing full-depth joints coincide with line of demolition, neatly saw-cut a long line of existing pavement to remain before removing adjacent existing pavement. Sawcut faces vertically.

2. Paint cut ends of steel reinforcement in concrete to remain with two coats of antirust coating, following coating manufacturer's written instructions. Keep paint off surfaces that will remain exposed.

3.06 DISPOSAL OF SURPLUS AND WASTE MATERIALS
A. Remove surplus soil material, unsuitable topsoil, obstructions, demolished materials, and waste materials including trash and debris, and legally dispose of them off Owner's property.

B. Separate recyclable materials produced during site clearing from other non-recyclable materials. Store or stockpile without intermixing with other materials, and transport them to recycling facilities. Do not interfere with other Project work.

3.07 PREINSTALLATION MEETINGS
A. Preinstallation Conference: Conduct Pregrading conference at Project site.

1. Review methods and procedures related to earthmoving, including, but not limited to, the following:
a. Personnel and equipment needed to make progress and avoid delays. b. Coordination of Work with utility locator service.
c. Coordination of Work and equipment movement with the locations of tree- and plantprotection zones. d. Extent of trenching by hand or with air spade.
e. Field quality control.

END OF SECTION

EARTH MOVING
312000 - 1
SECTION 312000 – EARTH MOVING
PART 1 - GENERAL

1.01 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary Conditions, apply to this Section.

B. Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC), Sections 300, and 301, and 306.

C. City of Hermosa Beach Permit.

1.02 SUMMARY
A. Section Includes:

1. Excavating and filling for rough grading the Site.

2. Preparing subgrades for slabs-on-grade, walks, pavements, trees, turf and grasses, and plants.

3. Drainage course for concrete slabs-on-grade.

4. Subbase course for concrete, walks, pavements.

5. Subbase course and base course for asphalt paving.

6. Excavating and backfilling trenches for utilities and pits for buried utility structures.

B. Related Requirements

1. Section 03 30 00 "Cast-in-Place Concrete" for granular course if placed over vapor retarder and beneath the slab-on-grade.

2. Section 31 10 00 "Site Clearing" for site stripping, grubbing, stripping and stock piling topsoil, and removal of above- and below-grade improvements and utilities.

3. City of Hermosa Beach Permits.

1.03 DEFINITIONS
A. Backfill: Soil material or controlled low-strength material used to fill an excavation.

1. Initial Backfill: Backfill placed beside and over pipe in a trench, including haunches to support sides of pipe.

2. Final Backfill: Backfill placed over initial backfill to fill a trench.

B. Base Course: Aggregate layer placed between the subbase course and hot-mix asphalt paving.

C. Bedding Course: Aggregate layer placed over the excavated subgrade in a trench before laying pipe.

D. Borrow Soil: Suitable soil transported to site to be used in Fill or Backfill.

EARTH MOVING
312000 - 2
E. Drainage Course: Aggregate layer supporting the slab-on-grade that also minimizes upward capillary flow of pore water.

F. Unclassified Excavation: Removal of material encountered above subgrade and sidewalk elevations, and to lines and dimensions indicated.

G. Overexcavation and Recompaction: Overexcavation and Recompaction shall consist of excavation of unsuitable material below subgrade, sidewalk elevations, and lines and dimensions indicated; and recompaction with suitable fill as directed by the Owner.

H. Export Soil: Excess excavated soil from site not used in Fill, to be exported from site and legally disposed of off-site.

I. Subbase Course: Aggregate layer placed between the subgrade and base course for hot-mix asphalt pavement, or aggregate layer placed between the subgrade and a cement concrete pavement or a cement concrete or hot-mix asphalt walk.

J. Subgrade: Uppermost surface of an excavation or the top surface of a fill or backfill immediately below subbase, drainage fill, drainage course, or topsoil materials.

K. Utilities: Power poles, Underground pipes, conduits, ducts, structures, and cables.

1.04 QUALITY ASSURANCE
A. Geotechnical Testing Agency Qualifications: Qualified according to ASTM E 329 and ASTM D 3740 for testing indicated.

1.05 FIELD CONDITIONS
A. Traffic: Minimize interference with adjoining roads, streets, walks, and other adjacent occupied or used facilities during earth-moving operations.

1. Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Owner and authorities having jurisdiction.

2. Provide alternate routes around closed or obstructed traffic ways if required by Owner or authorities having jurisdiction.

B. Utility Locator Service: Notify utility locator service for area where Project is located before beginning earth-moving operations.

C. Do not commence earth-moving operations until temporary site fencing and erosion- and sedimentation-control measures specified in Section 31 10 00 "Site Clearing," are in place.

D. The following practices are prohibited within protection zones of protected trees if applicable; or an area which preserves roots and soil and keeps branches clear of contact with construction equipment and materials.:

1. Storage of construction materials, debris, or excavated material.

EARTH MOVING
312000 - 3

2. Parking vehicles or equipment.

3. Foot traffic.

4. Erection of sheds or structures.

5. Impoundment of water.

6. Excavation or other digging unless otherwise indicated.

7. Attachment of signs to or wrapping materials around trees or plants unless otherwise indicated.

E. Do not direct vehicle or equipment exhaust towards protection zones.

F. Prohibit heat sources, flames, ignition sources, and smoking within or near protection zones.

PART 2 - PRODUCTS

2.01 GENERAL
A. General: All construction materials shall conform to Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC), Sections 200; and City of Hermosa Beach Permit.

PART 3 - EXECUTION

3.01 GENERAL
A. All construction methods shall conform to Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC), Sections 300 and 301, and City of Hermosa Beach Permit.

3.02 DEWATERING
A. Prevent surface water and ground water from entering excavations, from ponding on prepared subgrades, and from flooding Project site and surrounding area.

B. Protect subgrades from softening, undermining, washout, and damage by rain or water accumulation.

1. Reroute surface water runoff away from excavated areas. Do not allow water to accumulate in excavations. Do not use excavated trenches as temporary drainage ditches.

3.03 EXCAVATION
A. GENERAL

EARTH MOVING
312000 - 4

1. Unclassified Excavation: Excavate to subgrade elevations regardless of the character of surface and subsurface conditions encountered. Unclassified excavated materials may include rock, soil materials, and obstructions. No changes in the Contract Sum or the Contract Time will be authorized for rock excavation or removal of obstructions.

2. Overexcavation and Recompaction: When unsuitable material is encountered, as determined by the landscape architect or inspector, excavate below elevations, and recompact with suitable fill material to subgrade elevations as directed by the Owner.

B. EXCAVATION FOR WALKS AND PAVEMENTS

1. Excavate surfaces under walks and pavements to indicated lines, cross-sections, elevations, and subgrades.

2. All Pavement excavation shall conform to Greenbook 2021, Standards and Specifications for Public Works Construction (SSPWC), Sections 300 and 301, and City of Hermosa Beach Permit.

C. EXCAVATION FOR UTILITY TRENCHES

1. Excavation of trenches shall conform to Greenbook 2021, Standards and Specifications for Public Works Construction (SSPWC), Sections 300 and 301, and City of Hermosa Beach Permit.

3.04 SUBGRADE INSPECTION
A. Notify Owner when excavations and fills have reached required subgrade elevation.

B. If Owner or Testing Agency determines that unsatisfactory soil is present, the contractor shall excavate and replace with suitable compacted backfill or fill material as directed by Owner.

C. Reconstruct subgrades damaged by freezing temperatures, frost, rain, accumulated water, or construction activities, as directed by Owner, without additional compensation.

3.05 BACKFILL
A. GENERAL

1. Place and compact backfill in excavations promptly, but not before completing the following:
a. Construction below finish grade including, where applicable, subdrainage, dampproofing, waterproofing, and perimeter insulation.
b. Surveying locations of underground utilities for Record Documents. c. Testing and inspecting underground utilities.
d. Removing concrete formwork.
e. Removing trash and debris.
f. Place backfill on subgrades free of mud, frost, snow, or ice.

B. UTILITY TRENCH BACKFILL

EARTH MOVING
312000 - 5

1. Place bedding material, and backfill utility trenches in conformance with Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC), Sections 300 and 301; utility agency requirements.

C. SOIL FILL

1. Place Fill in conformance with Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC), Section 300; City of Hermosa Beach Permit D. COMPACTION OF SOIL BACKFILLS AND FILLS

1. Compact Soil Backfills and Fills in conformance with Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC), Section 300; City of Hermosa Beach Permit.

3.06 GRADING
A. General: Uniformly grade areas to a smooth surface, free of irregular surface changes. Comply with compaction requirements and grade to cross sections, lines, and elevations indicated.

1. Provide a smooth transition between adjacent existing grades and new grades.

2. Cut out soft spots, fill low spots, and trim high spots to comply with required surface tolerances.

B. Site Rough Grading: Slope grades to direct water away from buildings and to prevent ponding.

Finish subgrades to elevations required to achieve indicated finish elevations, within the following subgrade tolerances:

1. Turf or Unpaved Areas: Plus or minus one-tenth foot.

2. Walks: Plus or minus ½ inch.

3. Pavements: Plus or minus ½ inch.

3.07 FIELD QUALITY CONTROL
A. General: Field Quality Control, including construction observations, inspection, testing, compaction, and clean up, shall conform to Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC).

B. Testing Agency: Contractor will engage a qualified geotechnical engineering testing agency to perform tests and inspections.

C. Testing agency shall inspect and test subgrades and each fill or backfill layer. Proceed with subsequent earth moving only after test results for previously completed work comply with requirements.

D. Testing agency will test compaction of soils in place according to ASTM D 1556, ASTM D 2167, ASTM D 2937, and ASTM D 6938, as applicable. Tests will be performed at the following locations and frequencies:

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312000 - 6

1. Paved and Slab Areas: At subgrade and at each compacted fill and backfill layer, at least one test for every 2,000 square feet or less of paved area or building slab but in no case fewer than three tests.

2. Trench Backfill: At each compacted initial and final backfill layer, at least one test for every 150 feet or less of trench length but no fewer than two tests.

E. When testing agency reports that subgrades, fills, or backfills have not achieved degree of compaction specified, scarify and moisten or aerate, or remove and replace soil materials to depth required; recompact and retest until specified compaction is obtained.

3.08 PROTECTION
A. Protecting Graded Areas:

1. Protect newly graded areas from traffic, freezing, and erosion.

2. Graded areas shall be free of trash and debris.

B. Repair and reestablish grades to specified tolerances where completed or partially completed surfaces become eroded, rutted, settled, or where they lose compaction due to subsequent construction operations or weather conditions.

1. Scarify or remove and replace soil material to depth as directed by Owner; reshape and recompact.

C. Where settling occurs before Project correction period elapses, remove finished surfacing, backfill with additional soil material, compact, and reconstruct surfacing.

1. Restore appearance, quality, and condition of finished surfacing to match adjacent work, and eliminate evidence of restoration to greatest extent possible.

3.09 DISPOSAL OF WASTE MATERIALS
A. Remove waste materials, including unsuitable soil, trash, oversize rocks, rubble, and debris, and legally dispose of them off Owner's property.

3.10 BORROW AND EXPORT SOIL
A. Borrow Soil: Obtain, transport from off-site to project site, place and compact Borrow Soil as Fill or Backfill, if sufficient quantity of suitable soil excavated on-site is not available to complete subgrade elevations, backfills, and to the lines and dimensions indicated. Provide Borrow Soil in the quantity necessary to complete the Fills and Backfills.

B. Export Soil: Transport from site and legally dispose of off-site, excavated soil, including utility trench spoils, in excess of quantity needed on-site to complete subgrade elevations, backfills, and to the lines and dimensions indicated.

EARTH MOVING
312000 - 7

END OF SECTION

LANDSCAPE GRADING
312219 - 1
SECTION 312219 – LANDSCAPE GRADING
PART 1 - GENERAL

1.1 SUMMARY
A. This Section includes materials, labor, apparatus, tools, equipment, temporary construction, transportation, and services necessary for and incidental to performing the proper completion of Work for Finished Grading in Landscape Planting Areas, as shown in the Contract Drawings, and as specified herein this Section.

B. Work under this Section consists of, but is not necessarily limited to, furnishing and installing the following:

1. Finish Grading of Landscape Planting Areas.

C. Related Sections: The following Sections contain requirements that relate to Work in this Section:

1. Section 328400 – Landscape Irrigation

2. Section 329113 – Soil Preparation.

3. Section 329200 – Lawns and Grasses.

4. Section 329300 – Exterior Plants.

5. Section 329400 – Landscape Planting Accessories.

6. Section 329813 – Landscape Establishment Period.

7. Section 334300 – Landscape Drainage.

1.2 SITE CONDITIONS
A. Dust Nuisance: Contractor shall assume full responsibility for alleviation or prevention of dust as a result of Work under this Section.

B. Excessive rock, dead or declining vegetation, trash, debris, or other items that has accumulated shall be removed from the Project Site by the Contractor, and as directed by the Landscape Architect, prior to completion of Finish Grading operations.

C. Work under this Section shall be performed only during the period when beneficial and optimum Landscape Grading results may be obtained. If the moisture content of the soil should reach such a level that working it would destroy soil structure or cause compaction. Landscape Grading operations shall be suspended until, in the opinion of the Landscape Architect, the moisture content is increased or reduced to acceptable levels and the desired results are likely to be obtained.

D. Soil moisture level prior to Landscape Grading shall be no less than 75% of field capacity. The determination of adequate soil moisture for Landscape Grading shall be in the sole judgment of the Landscape Architect.

1.3 QUALITY ASSURANCE AND CONTROL

LANDSCAPE GRADING
312219 - 2
A. Installer Qualifications:

1. Valid California C-27 (Landscaping Contractor) License.

B. Engage an experienced, licensed Contractor who has completed landscaping work similar in material, design, and extent to that indicated for this Project and with a record of successful landscape establishment.

C. Installer's Field Supervision: Contractor shall maintain an experienced, full-time landscape supervisor/superintendent at the Project Site during times that landscaping operations identified herein the Contract are in progress.

1.4 COORDINATION, SCHEDULING:, AND OBSERVATIONS
A. Sequencing: Complete Finish Grading after general Soil Preparation (refer to Section 329113) and prior to installation of Irrigation System (Refer to Section 328400) in each area graded.

B. Re-grade, as required, to acceptable Landscape Grades established by Landscape Architect once irrigation system is installed.

C. Utilities: Determine location of above grade and underground utilities and perform Work in a manner which will avoid damage to utilities. Hand excavate, as required. Maintain grade stakes until removal is mutually agreed upon by parties concerned.

D. Excavation: When conditions detrimental to adequate Finish Grading operations are encountered, such as rubble fill, adverse drainage conditions, or obstructions, cease operations and notify Landscape Architect for further direction.

E. Perform Finish Grading operations only when weather and soil conditions are suitable in accordance with locally accepted practices.

F. Construction Site Observations: Periodic site observations shall be made by the Landscape Architect during the installation of Work under this Section for compliance with requirements.

Landscape Architect retains right to observe Work for defects and to reject unsatisfactory or defective work under this Section at any time during progress of Work. Contractor shall request, in writing, at least one (1) week in advance of the time when mandatory site observation(s) by the Landscape Architect are required.

PART 2 - PRODUCTS (NOT APPLICABLE)
PART 3 - EXECUTION

3.1 EXAMINATION
A. Verification of Conditions: Verify that the following soil preparation items (per Section 329113) have been completed prior to commencement of Landscape Grading:

1. Installation of (stockpiled) topsoil and soil preparation, including debris removal.

2. Incorporation of soil amendments.

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312219 - 3

3.2 INSTALLATION
A. Subsoil Preparation:

1. Rough grade sub-soil systematically to allow for a maximum amount of natural settlement and compaction. Eliminate uneven areas and low spots. Remove debris, roots, branches, stones, etc. Remove sub-soil that has been contaminated with petroleum products.

2. Cut out areas to subgrade elevation which are to receive stabilizing base for paving and sidewalks.

3. Bring sub soil to required levels, profiles, and contours. Make changes in grade gradual.

Blend slopes into level areas.

4. Cultivate subgrade to a depth of three-inches (3”) where topsoil is to be placed. Repeat cultivation in areas where equipment used for hauling and spreading topsoil has compacted sub-soil.

B. Finish Grading:

1. In all planting areas, a layer of soil amendments and fertilizers shall be uniformly spread and thoroughly cultivated by means of mechanical tiller as recommended by the approved Agronomic Soil Fertility Report (per Section 329113 – Soil Preparation).

Planting areas shall be free of all weeds, construction debris, trash, debris, and rocks 1” in diameter or larger for a minimum depth of two-inches (2”).

2. Provide Finish Grades for natural runoff of water without low spots or pockets.

Accurately set flow line grades at a two-percent (2%) minimum positive gradient, unless otherwise noted in the Contract Drawings.

3. Finish Grades shall be smooth, even, and on a uniform plane with no abrupt changes, pits, or undulations of the surface. Slope grades uniformly between given spot elevations.

4. Finish Grades not otherwise indicated shall be uniform levels or slopes between points where elevations are given, or between points established by walks, paving, curbs or catch basins.

5. Tops and toes of slopes shall be gently rounded or feathered to produce a gradual and natural-appearing transition between relatively level areas and slopes, per the satisfaction of the Landscape Architect.

6. Slope grade away from buildings a minimum two-inches (2”) in ten-feet (10’) unless otherwise indicated on Contract Drawings.

C. Tolerances:

1. Planting areas, including areas planted with turf grasses, shall be true to grade within oneinch (1”) when tested with a ten-foot (10’) straightedge.

2. Hold Finish Grades in landscape planting areas below top of adjacent pavement, headers, curbs, or walls (where applicable), as follows:
a. Shrub, Annual and Groundcover Areas: One and one-half inches (1-1/2”). b. Sodded Turf Grass Areas: One-inch (1”).

END OF SECTION

ASHPALT PAVING
321216 - 1
SECTION 321216 - ASPHALT PAVING
PART 1 - GENERAL

1.01 RELATED DOCUMENTS
A. Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC), Sections 200, 201, 203, 213, 300, 301, 302, 303, and 314.

B. City of Hermosa Beach Specifications and Codes.

1.02 SUMMARY
A. Section Includes:

1. Cold milling of existing asphalt pavement.

2. Hot-mix asphalt patching.

3. Hot-mix asphalt paving.

4. Hot-mix asphalt overlay.

5. Asphalt curbs.

6. Asphalt traffic-calming devices.

7. Asphalt surface treatments.

B. Related Requirements:

1. Section 31 20 00 "Earth Moving" for subgrade preparation, fill material, unboundaggregate subbase and base courses, and aggregate pavement shoulders.

1.03 PREINSTALLATION MEETINGS
A. Pre-installation Conference: Conduct conference at Project site.

1. Review methods and procedures related to hot-mix asphalt paving including, but not limited to, the following:
a. Review proposed sources of paving materials, including capabilities and location of plant that will manufacture hot-mix asphalt. b. Review requirements for protecting paving work, including restriction of traffic during installation period and for remainder of construction period.

1.04 ACTION SUBMITTALS
A. Product Data: For each type of product.

1. Include technical data and tested physical and performance properties.

2. Job-Mix Designs: Certification, by authorities having jurisdiction, of approval of each job mix proposed for the Work.

ASHPALT PAVING
321216 - 2

3. Job-Mix Designs: For each job mix proposed for the Work.

B. Samples for Verification: For the following product, in manufacturer's standard sizes unless otherwise indicated:

1. Paving Fabric: 12 inches (300 by 300 mm) minimum.

1.05 INFORMATIONAL SUBMITTALS
A. Qualification Data: For manufacturer and testing agency.

B. Material Certificates: For each paving material. Include statement that mixes containing recycled materials will perform equal to mixes produced from all new materials.

C. Material Test Reports: For each paving material, by a qualified testing agency.

D. Field quality-control reports.

1.06 QUALITY ASSURANCE
A. Manufacturer Qualifications: A paving-mix manufacturer registered with and approved by City of Hermosa Beach.

B. Testing Agency Qualifications: Qualified according to ASTM D 3666 for testing indicated.

C. Regulatory Requirements: Comply with materials, workmanship, and other applicable requirements of City of Hermosa Beach for asphalt paving work.

PART 2 - PRODUCTS

2.01 GENERAL
A. General: All construction materials shall conform Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC); Sections 200, 201, 203, and 213.

B. Concrete: Portland Cement Concrete (PCC) shall also conform to the recommendations and requirements of Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC). Cement shall be Type II or V Portland Cement. PCC shall be specified by Special Exposure and shall conform to Greenbook 2015, Standard Specifications for Public Works Construction (SSPWC), Section 201, Table 201-1.1.3, Severe Exposure Mix.

PART 3 - EXECUTION

3.01 GENERAL

ASHPALT PAVING
321216 - 3
A. All construction methods shall conform to Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC), Sections 301, 302, 303, and 314.

3.02 FIELD QUALITY CONTROL
A. Testing Agency: Engage a qualified testing agency to perform tests and inspections.

B. Field Quality Control: Field Quality Control, including construction observations, inspection, testing, and cleaning, shall conform to Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC)

3.03 WASTE HANDLING
A. General: Handle asphalt-paving waste according to Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC)

END OF SECTION

CONCRETE PAVING
321313 - 1
SECTION 32 13 13 - CONCRETE PAVING
PART 1 - GENERAL

1.01 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary Conditions apply to this Section.

B. Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC), Sections 200, 201, 203, 213, 300, 301, 302, 303, and 314.

C. CRSI’s “Manual of Standard Practice”
D. ACI 117 “Specifications for Tolerances for Concrete Construction” E. ACI 301 “Specifications for Structural Concrete”
F. ACI 306.1 Standard Specification for Cold Weather Concreting

1.02 SUMMARY
A. Section Includes Concrete Paving Including the Following:

1. Driveways.

2. Roadways.

3. Parking lots.

4. Curbs and gutters.

5. Walks.

B. Related Requirements:

1. Section 31 20 00 "Earth Moving" for subgrade preparation, fill material, unboundaggregate subbase and base courses, and aggregate pavement shoulders.

2. Section 32 17 23 "Pavement Markings."

1.03 DEFINITIONS
A. Cementitious Materials: Portland cement alone or in combination with one or more of blended hydraulic cement, fly ash, slag cement, and other pozzolans.

B. W/C Ratio: The ratio by weight of water to cementitious materials.

1.04 PREINSTALLATION MEETINGS
A. Preinstallation Conference: Conduct conference at Project site.

1. Review methods and procedures related to concrete paving, including but not limited to, the following:
a. Concrete mixture design.
b. Quality control of concrete materials and concrete paving construction practices.

CONCRETE PAVING
321313 - 2

2. Require representatives of each entity directly concerned with concrete paving to attend, including the following:
a. Contractor's superintendent.
b. Independent testing agency responsible for concrete design mixtures. c. Ready-mix concrete manufacturer.
d. Concrete paving Subcontractor.

1.05 ACTION SUBMITTALS
A. Product Data: For each type of product.

B. Design Mixtures: For each concrete paving mixture. Include alternate design mixtures when characteristics of materials, Project conditions, weather, test results, or other circumstances warrant adjustments.

1.06 INFORMATIONAL SUBMITTALS
A. Qualification Data: For qualified ready-mix concrete manufacturer and testing agency.

B. Material Certificates: For the following, from manufacturer:

1. Cementitious materials.

2. Steel reinforcement and reinforcement accessories.

3. Fiber reinforcement.

4. Admixtures.

5. Curing compounds.

6. Applied finish materials.

7. Bonding agent or epoxy adhesive.

8. Joint fillers.

C. Material Test Reports: For each of the following:

1. Aggregates: Include service-record data indicating absence of deleterious expansion of concrete due to alkali-aggregate reactivity.

D. Field quality-control reports.

1.07 QUALITY ASSURANCE
A. Ready-Mix-Concrete Manufacturer Qualifications: A firm experienced in manufacturing readymixed concrete products and that complies with ASTM C 94/C 94M requirements for production facilities and equipment.

1. Manufacturer certified according to NRMCA's "Certification of Ready Mixed Concrete Production Facilities" (Quality Control Manual - Section 3, "Plant Certification Checklist").

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321313 - 3
B. Testing Agency Qualifications: Qualified according to ASTM C 1077 and ASTM E 329 for testing indicated.

1. Personnel conducting field tests shall be qualified as ACI Concrete Field Testing Technician, Grade 1, according to ACI CP-1 or an equivalent certification program.

1.08 PRECONSTRUCTION TESTING
A. Preconstruction Testing Service: Engage a qualified independent testing agency to perform preconstruction testing on concrete paving mixtures.

1.09 FIELD CONDITIONS
A. Traffic Control: Maintain access for vehicular and pedestrian traffic as required for other construction activities.

B. Cold-Weather Concrete Placement: Protect concrete work from physical damage or reduced strength that could be caused by frost, freezing, or low temperatures. Comply with ACI 306.1 and the following:

1. When air temperature has fallen to or is expected to fall below 40 deg F, uniformly heat water and aggregates before mixing to obtain a concrete mixture temperature of not less than 50 deg F and not more than 80 deg F at point of placement.

2. Do not use frozen materials or materials containing ice or snow.

3. Do not use calcium chloride, salt, or other materials containing antifreeze agents or chemical accelerators unless otherwise specified and approved in design mixtures.

C. Hot-Weather Concrete Placement: Comply with ACI 301 and as follows when hot-weather conditions exist:

1. Cool ingredients before mixing to maintain concrete temperature below 90 deg F at time of placement. Chilled mixing water or chopped ice may be used to control temperature, provided water equivalent of ice is calculated in total amount of mixing water. Using liquid nitrogen to cool concrete is Contractor's option.

2. Cover steel reinforcement with water-soaked burlap, so steel temperature will not exceed ambient air temperature immediately before embedding in concrete.

3. Fog-spray forms, steel reinforcement, and subgrade just before placing concrete. Keep subgrade moisture uniform without standing water, soft spots, or dry areas.

PART 2 - PRODUCTS

2.01 CONCRETE, GENERAL
A. ACI Publications: Comply with ACI 301 unless otherwise indicated.

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2.02 FORMS
A. Form Materials: Plywood, metal, metal-framed plywood, or other approved panel-type materials to provide full-depth, continuous, straight, and smooth exposed surfaces.

1. Use flexible or uniformly curved forms for curves with a radius of 100 feet or less. Do not use notched and bent forms.

B. Form-Release Agent: Commercially formulated form-release agent that will not bond with, stain, or adversely affect concrete surfaces and that will not impair subsequent treatments of concrete surfaces.

2.03 STEEL REINFORCEMENT
A. Recycled Content: Postconsumer recycled content plus one-half of preconsumer recycled content not less than 25 percent.

B. Deformed-Steel Welded-Wire Reinforcement: ASTM A 1064/A 1064M, flat sheet.

C. Reinforcing Bars: ASTM A 615/A 615M, Grade 60; deformed.

D. Steel Bar Mats: ASTM A 184/A 184M; with ASTM A 615/A 615M, Grade 60 deformed bars; assembled with clips.

E. Joint Dowel Bars: ASTM A 615/A 615M, Grade 60 plain-steel bars. Cut bars true to length with ends square and free of burrs.

F. Tie Bars: ASTM A 615/A 615M, Grade 60; deformed.

G. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars, welded-wire reinforcement, and dowels in place. Manufacture bar supports according to CRSI's "Manual of Standard Practice" from steel wire, plastic, or precast concrete of greater compressive strength than concrete specified, and as follows:

1. Equip wire bar supports with sand plates or horizontal runners where base material will not support chair legs.

2. For epoxy-coated reinforcement, use epoxy-coated or other dielectric-polymer-coated wire bar supports.

2.04 CONCRETE MATERIALS
A. Regional Materials: Concrete shall be manufactured within 500 miles of Project site from aggregates and cement that have been extracted, harvested, or recovered, as well as manufactured, within 500 miles of Project site.

B. Cementitious Materials: Use the following cementitious materials, of same type, brand, and source throughout Project:

1. Portland Cement: ASTM C 150/C 150M, gray portland cement Type II or Type V.

2. Fly Ash: ASTM C 618, Class F.

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3. Slag Cement: ASTM C 989/C 989M, Grade 100 or 120.

C. Normal-Weight Aggregates: ASTM C 33/C 33M, Class 1N , uniformly graded. Provide aggregates from a single source with documented service-record data of at least 10 years' satisfactory service in similar paving applications and service conditions using similar aggregates and cementitious materials.

1. Maximum Coarse-Aggregate Size: 1 inch nominal.

2. Fine Aggregate: Free of materials with deleterious reactivity to alkali in cement.

D. Air-Entraining Admixture: ASTM C 260/C 260M.

E. Chemical Admixtures: Admixtures certified by manufacturer to be compatible with other admixtures and to contain not more than 0.1 percent water-soluble chloride ions by mass of cementitious material.

1. Water-Reducing Admixture: ASTM C 494/C 494M, Type A.

2. Retarding Admixture: ASTM C 494/C 494M, Type B.

F. Water: Potable and complying with ASTM C 94/C 94M.

2.05 CURING MATERIALS
A. Absorptive Cover: AASHTO M 182, Class 3, burlap cloth made from jute or kenaf, weighing approximately 9 oz./sq. yd. dry or cotton mats.

B. Moisture-Retaining Cover: ASTM C 171, polyethylene film or white burlap-polyethylene sheet.

C. Water: Potable.

D. Evaporation Retarder: Waterborne, monomolecular, film forming, manufactured for application to fresh concrete.

1. Products: Subject to compliance with requirements, available products that may be incorporated into the Work include, but are not limited to, the following:
a. BASF Construction Chemicals - Building Systems; Confilm. b. Bon Tool Co.; 32-301-B7 BonWay Evaporation Retarder. c. Brickform, a division of Solomon Colors, Inc.; Evaporation Retarder. d. ChemMasters; SprayFilm.
e. Dayton Superior Corporation; AquaFilm J74.
f. Euclid Chemical Company (The), an RPM company; EUCOBAR. g. Kaufman Products, Inc.; VaporAid.
h. L&M Construction Chemicals, Inc.; E-CON.
i. Lambert Corporation; Lambco Skin.
j. Meadows, W. R., Inc.; EVAPRE.
k. Metalcrete Industries; Waterhold.
l. Nox-Crete Products Group; Monofilm.
m. Sika Corporation, Inc.; SikaFilm.

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n. SpecChem, LLC; SpecFilm.
o. TK Products, Division of Sierra Corporation; TK-2120 TRI-FILM. p. Vexcon Chemicals Inc.; Certi-Vex EnvioAssist.
q. Or equal.

E. Clear, Waterborne, Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B, dissipating.

1. Products: Subject to compliance with requirements, available products that may be incorporated into the Work include, but are not limited to, the following:
a. Anti-Hydro International, Inc.; A-H Curing Compound #2 DR WB. b. ChemMasters, Inc; Safe-Cure Clear DR.
c. Dayton Superior Corporation; Clear Resin Cure J11W.
d. Euclid Chemical Company (The), an RPM company; Kurez DR VOX. e. Kaufman Products, Inc.; DR Cure.
f. L&M Construction Chemicals, Inc.; L&M Cure R.
g. Lambert Corporation; Aqua Kure – Clear.
h. Meadows, W. R., Inc.; 1100-CLEAR.
i. Nox-Crete Products Group; Res-Cure [DH] [DS].
j. Right Pointe; Clear Water Resin.
k. SpecChem, LLC; PaveCure Rez.
l. TK Products, Division of Sierra Corporation; TK-2519 DC WB. m. Vexcon Chemicals Inc.; Certi-Vex Envio Cure 100.
n. Or equal.

F. White, Waterborne, Membrane-Forming Curing Compound: ASTM C 309, Type 2, Class B, dissipating.

1. Products: Subject to compliance with requirements, available products that may be incorporated into the Work include, but are not limited to, the following:
a. Anti-Hydro International, Inc.; A-H Curing Compound #2 WP WB. b. ChemMasters; Safe-Cure 2000.
c. Dayton Superior Corporation; White Resin Cure J10W.
d. Kaufman Products, Inc.; Thinfilm 450.
e. L&M Construction Chemicals, Inc.; L&M Cure R-2.
f. Lambert Corporation; Aqua-Cure White.
g. Meadows, W. R., Inc.; 1200-WHITE.
h. SpecChem, LLC; PaveCure Rez White.
i. Vexcon Chemicals Inc.; Certi-Vex Envio Cure White 100. j. Or equal

2.06 RELATED MATERIALS
A. Joint Fillers: ASTM D 1751, asphalt-saturated cellulosic fiber or ASTM D 1752, cork or selfexpanding cork in preformed strips.

B. Bonding Agent: ASTM C 1059/C 1059M, Type II, non-redispersible, acrylic emulsion or styrene butadiene.

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C. Epoxy-Bonding Adhesive: ASTM C 881/C 881M, two-component epoxy resin capable of humid curing and bonding to damp surfaces; of class suitable for application temperature, of grade complying with requirements, and of the following types:

1. Types IV and V, load bearing, for bonding hardened or freshly mixed concrete to hardened concrete.

2.07 CAST IN PLACE DETECTABLE WARNING MATERIALS
A. Detectable Warning Stamp: Semi-rigid polyurethane mats with formed underside capable of imprinting detectable warning pattern on plastic concrete; perforated with a vent hole at each dome.

1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:
a. Armor-Tile tactile systems product or equal
b. Safety Step TD
c. or equal .

2. Size of Stamp: matching detectable warning area shown on Drawings.

2.08 CONCRETE MIXTURES
A. Prepare design mixtures, proportioned according to ACI 301, for each type and strength of normal-weight concrete, and as determined by either laboratory trial mixtures or field experience.

1. Use a qualified independent testing agency for preparing and reporting proposed concrete design mixtures for the trial batch method.

2. When automatic machine placement is used, determine design mixtures and obtain laboratory test results that comply with or exceed requirements.

B. Cementitious Materials: Limit percentage, by weight, of cementitious materials other than portland cement in concrete as follows:

1. Fly Ash or Pozzolan: 25 percent.

2. Slag Cement: 50 percent.

3. Combined Fly Ash or Pozzolan, and Slag Cement: 50 percent, with fly ash or pozzolan not exceeding 25 percent.

C. Add air-entraining admixture at manufacturer's prescribed rate to result in normal-weight concrete at point of placement having an air content as follows:

1. Air Content: 4-1/2 percent plus or minus 1-1/2 percent for 1-inch nominal maximum aggregate size.

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D. Limit water-soluble, chloride-ion content in hardened concrete to 0.30 percent by weight of cement.

E. Chemical Admixtures: Use admixtures according to manufacturer's written instructions.

1. Use water-reducing admixture in concrete as required for placement and workability.

2. Use water-reducing and retarding admixture when required by high temperatures, low humidity, or other adverse placement conditions.

F. Concrete Mixtures: Normal-weight concrete.

1. Concrete specified by Special Exposure, “Severe Expose,” per Greenbook 2015, Standards Specifications for Public Works Construction (SSPWC) 201-1.1.3

2. Portland cement type II or V.

3. Compressive Strength (28 Days): 5000 psi.

4. Maximum W/C Ratio at Point of Placement: 0.40.

2.09 CONCRETE MIXING
A. Ready-Mixed Concrete: Measure, batch, and mix concrete materials and concrete according to ASTM C 94/C 94M. Furnish batch certificates for each batch discharged and used in the Work.

1. When air temperature is between 85 and 90 deg. F, reduce mixing and delivery time from 1-1/2 hours to 75 minutes; when air temperature is above 90 deg. F, reduce mixing and delivery time to 60 minutes.

PART 3 - EXECUTION

3.01 EXAMINATION
A. Examine exposed subgrades and subbase surfaces for compliance with requirements for dimensional, grading, and elevation tolerances.

B. Proof-roll prepared subbase surface below concrete paving to identify soft pockets and areas of excess yielding.

1. Completely proof-roll subbase in one direction and repeat in perpendicular direction.

Limit vehicle speed to 3 mph.

2. Proof-roll with a pneumatic-tired and loaded, 10-wheel, tandem-axle dump truck weighing not less than 15 tons.

3. Correct subbase with soft spots and areas of pumping or rutting exceeding depth of 1/2 inch according to requirements in Section 31 20 00 "Earth Moving." C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.02 PREPARATION
A. Remove loose material from compacted subbase surface immediately before placing concrete.

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3.03 EDGE FORMS AND SCREED CONSTRUCTION
A. Set, brace, and secure edge forms, bulkheads, and intermediate screed guides to required lines, grades, and elevations. Install forms to allow continuous progress of work and so forms can remain in place at least 24 hours after concrete placement.

B. Clean forms after each use and coat with form-release agent to ensure separation from concrete without damage.

3.04 STEEL REINFORCEMENT INSTALLATION
A. General: Comply with CRSI's "Manual of Standard Practice" for fabricating, placing, and supporting reinforcement.

B. Clean reinforcement of loose rust and mill scale, earth, ice, or other bond-reducing materials.

C. Arrange, space, and securely tie bars and bar supports to hold reinforcement in position during concrete placement. Maintain minimum cover to reinforcement.

D. Install welded-wire reinforcement in lengths as long as practicable. Lap adjoining pieces at least one full mesh, and lace splices with wire. Offset laps of adjoining widths to prevent continuous laps in either direction.

E. Install fabricated bar mats in lengths as long as practicable. Handle units to keep them flat and free of distortions. Straighten bends, kinks, and other irregularities, or replace units as required before placement. Set mats for a minimum 2-inch overlap of adjacent mats.

3.05 JOINTS
A. General: Form construction, isolation, and contraction joints and tool edges true to line, with faces perpendicular to surface plane of concrete. Construct transverse joints at right angles to centerline unless otherwise indicated.

1. When joining existing paving, place transverse joints to align with previously placed joints unless otherwise indicated.

B. Construction Joints: Set construction joints at side and end terminations of paving and at locations where paving operations are stopped for more than one-half hour unless paving terminates at isolation joints.

1. Continue steel reinforcement across construction joints unless otherwise indicated. Do not continue reinforcement through sides of paving strips unless otherwise indicated.

2. Provide tie bars at sides of paving strips where indicated.

3. Doweled Joints: Install dowel bars and support assemblies at joints where indicated.

Lubricate or coat with asphalt one-half of dowel length to prevent concrete bonding to one side of joint.

C. Isolation Joints: Form isolation joints of preformed joint-filler strips abutting concrete curbs, catch basins, manholes, inlets, structures, other fixed objects, and where indicated.

1. Extend joint fillers full width and depth of joint.

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2. Terminate joint filler not less than 1/2 inch or more than 1 inch below finished surface if joint sealant is indicated.

3. Furnish joint fillers in one-piece lengths. Where more than one length is required, lace or clip joint-filler sections together.

4. During concrete placement, protect top edge of joint filler with metal, plastic, or other temporary preformed cap. Remove protective cap after concrete has been placed on both sides of joint.

D. Contraction Joints: Form weakened-plane contraction joints, sectioning concrete into areas as indicated. Construct contraction joints for a depth equal to at least one-fourth of the concrete thickness, as follows, to match jointing of existing adjacent concrete paving and locations as shown on the plans:

1. Sawed Joints: Form contraction joints with power saws equipped with shatterproof abrasive or diamond-rimmed blades. Cut 1/8-inch-wide joints into concrete when cutting action will not tear, abrade, or otherwise damage surface and before developing random contraction cracks.
a. Tolerance: Ensure that sawed joints are within 3 inches either way from centers of dowels.

2. Doweled Contraction Joints: Install dowel bars and support assemblies at joints where indicated. Lubricate or coat with asphalt one-half of dowel length to prevent concrete bonding to one side of joint.

3.06 CONCRETE PLACEMENT
A. Before placing concrete, inspect and complete formwork installation, steel reinforcement, and items to be embedded or cast-in.

B. Remove snow, ice, or frost from subbase surface and steel reinforcement before placing concrete. Do not place concrete on frozen surfaces.

C. Moisten subbase to provide a uniform dampened condition at time concrete is placed. Do not place concrete around manholes or other structures until they are at required finish elevation and alignment.

D. Comply with ACI 301 requirements for measuring, mixing, transporting, and placing concrete.

E. Do not add water to concrete during delivery or at Project site. Do not add water to fresh concrete after testing.

F. Deposit and spread concrete in a continuous operation between transverse joints. Do not push or drag concrete into place or use vibrators to move concrete into place.

G. Consolidate concrete according to ACI 301 by mechanical vibrating equipment supplemented by hand spading, rodding, or tamping.

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1. Consolidate concrete along face of forms and adjacent to transverse joints with an internal vibrator. Keep vibrator away from joint assemblies, reinforcement, or side forms.

Use only square-faced shovels for hand spreading and consolidation. Consolidate with care to prevent dislocating reinforcement, dowels and joint devices.

H. Screed paving surface with a straightedge and strike off.

I. Commence initial floating using bull floats or darbies to impart an open-textured and uniform surface plane before excess moisture or bleedwater appears on the surface. Do not further disturb concrete surfaces before beginning finishing operations or spreading surface treatments.

J. Curbs and Gutters: Use design mixture for automatic machine placement. Produce curbs and gutters to required cross section, lines, grades, finish, and jointing.

K. Slip-Form Paving: Use design mixture for automatic machine placement. Produce paving to required thickness, lines, grades, finish, and jointing.

1. Compact subbase and prepare subgrade of sufficient width to prevent displacement of slip-form paving machine during operations.

3.07 FLOAT FINISHING
A. General: Do not add water to concrete surfaces during finishing operations.

B. Float Finish: Begin the second floating operation when bleedwater sheen has disappeared and concrete surface has stiffened sufficiently to permit operations. Float surface with power-driven floats or by hand floating if area is small or inaccessible to power units. Finish surfaces to true planes. Cut down high spots and fill low spots. Refloat surface immediately to uniform granular texture.

1. Burlap Finish: Drag a seamless strip of damp burlap across float-finished concrete, perpendicular to line of traffic, to provide a uniform, gritty texture.

2. Medium-to-Fine-Textured Broom Finish: Draw a soft-bristle broom across float-finished concrete surface, perpendicular to line of traffic, to provide a uniform, fine-line texture.

3.08 CAST IN PLACE DETECTABLE WARNING SURFACE INSTALLATION A. The factory-installed plastic sheeting must remain in place during the entire installation process to prevent the splashing of concrete onto the finished surface of the tile.

B. When preparing to set the tile, it is important that no concrete be removed in the area to accept the tile. It is imperative that the installation technique eliminates any air voids under the tile.

Holes in the tile perimeter allow air to escape during the installation process. Concrete will flow through the large holes in each embedment flange on the underside of the tile. This will lock the tile solidly into the cured concrete.

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C. The concrete shall be poured and finished true and smooth to the required dimensions and slope prior to the tile placement. Immediately after finishing concrete, the electronic level should be used to check that the required slope is achieved. The tile shall be placed true and square to the curb edge in accordance with the contract drawings. The Cast In Place Detectable/Tactile Warning Surface Tiles shall be tamped (or vibrated) into the fresh ADA Tactile Tiles 2019 CBC Title 24 Compliant Section 32 17 26-4 January 1,2020 concrete to ensure that the field level of the tile is flush to the adjacent concrete surface. The embedment process should not be accomplished by stepping on the tile as this may cause uneven setting which can result in air voids under the tile surface. The contract drawings indicate that the tile field level (base of truncated dome) is flush to adjacent surfaces to permit proper water drainage and eliminate tripping hazards between adjacent finishes.

D. In cold weather climates it is recommended that the Cast In Place Detectable/Tactile Warning Surface Tiles be set deeper such that the top of domes are level to the adjacent concrete on the top and sides of ramp and that the base of domes to allow water drainage. This installation will reduce the possibility of damage due to snow clearing operations.

E. Immediately after placement, the tile elevation is to be checked to adjacent concrete. The elevation and slope should be set consistent with contract drawings to permit water drainage to curb as the design dictates. Ensure that the field surface of the tile is flush with the surrounding concrete and back of curb so that no ponding is possible on the tile at the back side of curb.

F. While concrete is workable, a 3/8" radius edging tool shall be used to create a finished edge of concrete, then a steel trowel shall be used to finish the concrete around the tile’s perimeter, flush to the field level of the tile.

G. During and after the tile installation and the concrete curing stage, it is imperative that there is no walking, leaning or external forces placed on the tile that may rock the tile causing a void between the underside of tile and concrete.

H. Following tile placement, review installation tolerances to contract drawings and adjust tile before the concrete sets. Two suitable weights of 25 lb each may be required to be placed on each tile as necessary to ensure solid contact of the underside of tile to concrete.

3.09 AND CURING
A. General: Protect freshly placed concrete from premature drying and excessive cold or hot temperatures.

B. Comply with ACI 306.1 for cold-weather protection.

C. Evaporation Retarder: Apply evaporation retarder to concrete surfaces if hot, dry, or windy conditions cause moisture loss approaching 0.2 lb/sq. ft. x h before and during finishing operations. Apply according to manufacturer's written instructions after placing, screeding, and bull floating or darbying concrete but before float finishing.

D. Begin curing after finishing concrete but not before free water has disappeared from concrete surface.

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E. Curing Methods: Cure concrete by moisture curing, moisture-retaining-cover curing, curing compound or a combination of these as follows:

1. Moisture Curing: Keep surfaces continuously moist for not less than seven days with the following materials:
a. Water.
b. Continuous water-fog spray.
c. Absorptive cover, water saturated and kept continuously wet. Cover concrete surfaces and edges with 12-inch lap over adjacent absorptive covers.

2. Moisture-Retaining-Cover Curing: Cover concrete surfaces with moisture-retaining cover, placed in widest practicable width, with sides and ends lapped at least 12 inches, and sealed by waterproof tape or adhesive. Immediately repair any holes or tears occurring during installation or curing period, using cover material and waterproof tape.

3. Curing Compound: Apply uniformly in continuous operation by power spray or roller according to manufacturer's written instructions. Recoat areas subjected to heavy rainfall within three hours after initial application. Maintain continuity of coating, and repair damage during curing period.

3.10 PAVING TOLERANCES
A. Comply with tolerances in ACI 117 and as follows:

1. Elevation: 1/4 inch.

2. Thickness: Plus 3/8 inch, minus 1/4 inch.

3. Surface: Gap below 10-feet- long; unleveled straightedge not to exceed 1/4 inch.

4. Alignment of Tie-Bar End Relative to Line Perpendicular to Paving Edge: 1/2 inch per 12 inches of tie bar.

5. Lateral Alignment and Spacing of Dowels: 1 inch.

6. Vertical Alignment of Dowels: 1/4 inch.

7. Alignment of Dowel-Bar End Relative to Line Perpendicular to Paving Edge: 1/8 inch per 12 inches of dowel.

8. Joint Spacing: 3 inches.

9. Contraction Joint Depth: Plus 1/4 inch, no minus.

10. Joint Width: Plus 1/8 inch, no minus.

3.11 FIELD QUALITY CONTROL
D Testing Agency: Engage a qualified testing agency to perform tests and inspections.

A. Testing Services: Testing and inspecting of composite samples of fresh concrete obtained according to ASTM C 172/C 172M shall be performed according to the following requirements:

1. Testing Frequency: Obtain at least one composite sample for each 5000 sq. ft. or fraction thereof of each concrete mixture placed each day.

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a. When frequency of testing will provide fewer than five compressive-strength tests for each concrete mixture, testing shall be conducted from at least five randomly selected batches or from each batch if fewer than five are used.

2. Slump: ASTM C 143/C 143M; one test at point of placement for each composite sample, but not less than one test for each day's pour of each concrete mixture. Perform additional tests when concrete consistency appears to change.

3. Air Content: ASTM C 231/C 231M, pressure method; one test for each composite sample, but not less than one test for each day's pour of each concrete mixture.

4. Concrete Temperature: ASTM C 1064/C 1064M; one test hourly when air temperature is 40 deg F and below and when it is 80 deg F and above, and one test for each composite sample.

5. Compression Test Specimens: ASTM C 31/C 31M; cast and laboratory cure one set of three standard cylinder specimens for each composite sample.

6. Compressive-Strength Tests: ASTM C 39/C 39M; test one specimen at seven days and two specimens at 28 days.
a. A compressive-strength test shall be the average compressive strength from two specimens obtained from same composite sample and tested at 28 days.

B. Strength of each concrete mixture will be satisfactory if average of any three consecutive compressive-strength tests equals or exceeds specified compressive strength and no compressive-strength test value falls below specified compressive strength by more than 500 psi.

C. Test results shall be reported in writing to Owner, concrete manufacturer, and Contractor within 48 hours of testing. Reports of compressive-strength tests shall contain Project identification name and number, date of concrete placement, name of concrete testing and inspecting agency, location of concrete batch in Work, design compressive strength at 28 days, concrete mixture proportions and materials, compressive breaking strength, and type of break for both 7- and 28- day tests.

D. Nondestructive Testing: Impact hammer, sonoscope, or other nondestructive device may be permitted by Owner but will not be used as sole basis for approval or rejection of concrete.

E. Additional Tests: Testing and inspecting agency shall make additional tests of concrete when test results indicate that slump, air entrainment, compressive strengths, or other requirements have not been met, as directed by Owner.

F. Concrete paving will be considered defective if it does not pass tests and inspections.

G. Additional testing and inspecting, at Contractor's expense, will be performed to determine compliance of replaced or additional work with specified requirements.

H. Prepare test and inspection reports.

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3.12 REPAIR AND PROTECTION
A. Remove and replace concrete paving that is broken, damaged, or defective or that does not comply with requirements in this Section. Remove work in complete sections from joint to joint unless otherwise approved by Owner.

B. Drill test cores, where directed by Owner, when necessary to determine magnitude of cracks or defective areas. Fill drilled core holes in satisfactory paving areas with portland cement concrete bonded to paving with epoxy adhesive.

C. Protect concrete paving from damage. Exclude traffic from paving for at least 14 days after placement. When construction traffic is permitted, maintain paving as clean as possible by removing surface stains and spillage of materials as they occur.

D. Maintain concrete paving free of stains, discoloration, dirt, and other foreign material. Sweep paving not more than two days before date scheduled for Substantial Completion inspections.

3.13 WASTE HANDLING
A. General: Handle concrete-paving waste according to approved waste management plan required in Section 01 74 19 "Construction Waste Management and Disposal.” END OF SECTION 32 13 13

STABILIZED DECOMPOSED GRANITE
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SECTION 321513 – STABILIZED DECOMPOSED GRANITE PAVING
PART 1 - GENERAL

1.1 SUMMARY
A. This Section includes materials, labor, apparatus, tools, equipment, temporary construction, transportation, and services necessary for and incidental to performing the proper completion of Work, as required, to make a complete, universally-accessible, stabilized Decomposed Granite Paving Application on a prepared sub-grade, as shown in the Contract Drawings, and as specified herein this Section.

B. Work under this Section consists of, but is not necessarily limited to, furnishing and installing the following:

1. Decomposed Granite Material.

2. Organic Binder (Stabilizer), where applicable in paving locations.

3. Accessories (Soil Sterilant (Herbicide)).

C. Related Sections: The following Sections contain requirements that relate to Work in this Section:

1. Section 312219 – Landscape Grading.

2. Section 3284 00 – Landscape Irrigation

3. Section 329113 – Soil Preparation.

4. Section 329400 – Landscape Planting Accessories (Geotextile Filter Fabric; Wood Header, Soil Sterliant (Herbicide), etc.

5. Section 329813 – Landscape Establishment Period.

1.2 DEFINITIONS AND APPLICABLE STANDARDS
A. References:

1. ASTM – American Society for Testing and Materials.

2. AASHTO – American Association of State Highway and Transportation Officials.

3. ADAAG – American with Disabilities Act Accessibility Guidelines.

4. CBC – California Building Code, Title 24 Disabled Access Regulations.

B. Definitions:

1. Percent Compaction: Per ASTM D1557, percentage of the maximum in-place dry density of the same material, as determined by the Geotechnical Engineer.

2. Stabilized Decomposed Granite Paving: Shall consist of a thoroughly pre-blended mixture (before placement) of Decomposed Granite material (fines) and Organic Binder (“Stabilizer”), that is set in lifts, reacted with water, and compacted in place, creating a universally-accessible finished surface.

C. Standards for Installation:

1. Standard Specifications: Standard Specifications of the State of California, Business and Transportation Agency, Department of Transportation (CALTRANS).

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321513 - 2

1.3 SUBMITTALS
A. General:

1. Collect information into a single Submittal for each element of construction and type of product or equipment identified under this Section for review.

2. To expedite review, Submittal shall be organized and presented into specific sections or headings. Furnish neat, concise, legible, and clearly identifiable information, and sufficiently explicit detail, to enable proper evaluation for Contract compliance.

Highlight catalog, product data, or brochures containing various products, sizes, and materials to show particular item submitted.

3. Submittal Format: As applicable, furnish Submittal as a single electronic digital PDF (Portable Document Format) file.

B. Digital Submittal Information:

1. Product/Material Data: Submit available product/material literature supplied by manufacturer’s, indicating that their products comply with specified requirements, technical data, and tested physical and performance properties. Provide manufacturing source (name, address, and telephone number), and distributor source (name, address, and telephone number) for each type of product/material:
a. Decomposed Granite Material.
b. Organic Binder.
c. Soil Sterilant (Herbicide).

2. Supplemental Data:
a. Sieve Analysis: Submit Sieve Analysis of each type of Decomposed Granite material to ensure it meets proper grading requirements. b. Material Test Reports: Submit certified copies of the field tests performed (testing the compressive strengths) of the Stabilized Decomposed Granite Paving finished surface.
c. Recommendation: Submit written recommendation from the Manufacturer/Distributor of the Organic Binder, indicating the quantity (pounds) of Organic Binder required per ton of Decomposed Granite material (lbs./ton).

Recommendation shall be specific to each type of Stabilized Decomposed Granite material specified herein.

3. Qualification Data: Submit names for firms and persons specified in the “Quality Assurance and Control” Article to demonstrate their capabilities and experience on similar Decomposed Granite installations.

4. Maintenance Data: Submit available maintenance literature supplied by manufacturer indication their best practices for replenishing, grooming and performance of product.

C. Material Samples: Submit four (4) sets of physical Material Samples for review of kind, color, pattern, size, and texture for a check of these characteristics with other elements, and for a comparison of these characteristics between Submittal and actual component as delivered and installed. Include the full range of exposed color and texture expected in the completed Work.

Provide Material Samples bound and individually wrapped in re-sealable labeled 1-gallon plastic bags (as applicable):

1. Submit sample in sufficient quantity (one (1) pound minimum, per bag) of each Decomposed Granite material for review to ensure color will be compatible with the Project.

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D. Submittals under this Article will be rejected and returned without the benefit of review by the Landscape Architect if they are difficult to read due to insufficient scale, poor image quality, or poor drafting quality; or if all of the required information is missing or not presented in the format as requested.

E. No Work shall proceed under this Section until Submittal requirements indicated herein have been reviewed accordingly by the Landscape Architect.

1.4 QUALITY ASSURANCE AND CONTROL
A. Installer Qualifications:

1. Requirement: Valid California C-27 (Landscaping Contractor) License.

2. Engage an experienced Installer who has completed in the last two (2) years at least three (3) Stabilized Decomposed Granite Paving installations similar in material, design, and extent to that indicated for this Project, and whose work has resulted in construction with a record of successful in-service performance.

3. Installer's Field Supervision: Require Installer to maintain an experienced full-time supervisor on the Project site during times that installations under this Section are in progress.

B. Source Limitations: Obtain each type of Stabilized Decomposed Granite material from the same Manufacturer's plant.

C. Single-Source Responsibility: Obtain each color, type, and/or variety of Stabilized Decomposed Granite material from a single source with resources to provide products and materials of consistent quality in appearance and physical properties without delaying the Work.

D. Manufacturer’s Directions: Follow Manufacturer’s directions and drawings in cases where the Manufacturers of articles used in this Section furnish directions covering points not shown in the Contract Drawings and Contract Specifications.

E. Field-Constructed Mock-ups: Prior to the installation of Work under this Section, Contractor shall erect Field-Constructed Mock-ups for each type of Stabilized Decomposed Granite Paving application to verify selections made under this Article and to demonstrate aesthetic effects as well as qualities of materials and execution. Build Field-Constructed Mock-ups to comply with the following requirements, using materials and same base construction including special features for surface finish, compaction within lifts, color(s), and contiguous work, as indicated for the final unit of Work.

1. Locate Field-Constructed Mock-ups in a location and of the size indicated or, if not indicated, as directed by the Owner’s Representative.

2. Notify the Landscape Architect, in writing, at least one (1) week in advance of the dates and times when Field-Constructed Mock-ups will be erected.

3. Demonstrate quality and range of aesthetic effects and workmanship in the FieldConstructed Mock-ups that will be produced in the final unit of Work.

4. Obtain the Landscape Architect’s acceptance of the Field-Constructed Mock-ups, in writing, before the start of Work. Accepted Mock-ups are a prerequisite to commencing Work under this Section.

5. Retain and maintain Field-Constructed Mock-ups during construction in an undisturbed condition. Accepted Field-Constructed Mock-ups shall be the standard for judging the completed Work under this Section.

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a. When directed by the Landscape Architect, Contractor shall demolish and remove Field-Constructed Mock-up Samples from the Project Site.

6. Contractor shall provide a separate Field Constructed Mock-up for each type of Stabilized Decomposed Granite Paving application for review by the Landscape Architect.
a. Each Field-Constructed Mock-up shall measure four-feet (4’) wide and four-feet (4’) long, and at the specified respective depths of Decomposed Granite indicated in the Contract Drawings, to compare the aesthetics of material colors, textures, and finishes. Include the specified header/edging material around the perimeter of the Mock-up.
1) When the Landscape Architect determines that a Field-Constructed Mockup does not meet requirements, retain it for reference and create another Field-Constructed Mock-up until the Field-Constructed Mock-up is accepted by the Landscape Architect.

7. Accepted Field-Constructed Mock-up(s) will be the standard by which remaining Work will be evaluated for technical and aesthetic merit, and re a prerequisite to commencing any Work under this Section.

1.5 DELIVERY, STORAGE, AND HANDLING
A. Protect Stabilized Decomposed Granite Paving material from contamination with foreign materials. Isolate stockpiles to prevent mixing of different aggregate grades prevent contamination with organic materials.

B. Deliver perishable material in original, unopened packaging. Protect from dampness.

C. Deliver and install Decomposed Granite materials so as to not delay Work, and install only after preparations for installation have been completed.

1.6 COORDINATION, SCHEDULING, AND OBSERVATIONS
A. Notify the Contractors performing Work related to installation of Work under this Section in ample time so as to allow sufficient time for them to perform their portion of Work and that progress of Work is not delayed. Verify conditions at the Project Site for Work that affects installation under this Section. Coordinate items of other trades to be furnished and set in place.

B. Utilities: Determine location of above grade and underground utilities and perform Work in a manner which will avoid damage to utilities. Hand excavate, as required. Maintain grade stakes until removal is mutually agreed upon by parties concerned.

C. Excavation: When conditions detrimental to installing Stabilized Decomposed Granite Paving is encountered, such as rubble fill, adverse drainage conditions, or obstructions, cease installation operations and notify Landscape Architect for further direction.

D. Traffic Control: Maintain access for vehicular, bicycle, and pedestrian traffic as required for other construction activities during installation of Stabilized Decomposed Granite Paving.

Access shall also be unobstructed and maintained at all times to allow for entry and exit of emergency vehicles.

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E. Grades and Levels: Establish and maintain required levels and grade elevations. Review installation procedures and coordinate Work herein this Section with other Work affected.

F. Installation: Perform installation of Stabilized Decomposed Granite Paving only when weather and soil conditions during rain or while sub base is wet from rain. Do not apply Soil Sterilant when winds exceed 10 mph or during or immediately after rain.

G. Sequence and Scheduling: Do not install Work under this Section prior to acceptance of subgrade preparation Work under another Section. Install edging/header materials prior to placement of Stabilized Decomposed Granite Paving, where applicable. Coordinate with other trades to insure proper placement of irrigation sleeves (per Section 328400) prior to installation of Decomposed Granite.

H. Construction Site Observations: Periodic site observations shall be made by the Landscape Architect during the installation of Work under this Section for compliance with requirements.

Landscape Architect retains right to observe Work for defects and to reject unsatisfactory or defective Work under this Section at any time during progress of Work. The Contractor shall request, in writing, at least one (1) week in advance of the time when mandatory site observation(s) by the Landscape Architect are required.

1.7 SUBSTITUTIONS
A. Consideration: Stabilized Decomposed Granite Paving materials to be considered equal to the Stabilized Decomposed Granite Paving materials indicated herein this Section shall be reviewed by the Landscape Architect. Materials with equal performance characteristics produced by other Manufacturer’s and/or Distributors may be considered, providing deviations in dimensional size, color, composition, operation, and/or other characteristics do not change the design concept, aesthetic appearance, nor intended performance, as solely judged by the Landscape Architect. The burden of proof on product equality is on the Contractor.

B. Specific reference to Manufacturer’s names and products specified herein are used as standards of quality. This implies no right to the Contractor to substitute other materials without prior written approval by the Landscape Architect for Work under this Section.

C. Stabilized Decomposed Granite Paving material(s) substituted and installed by the Contractor, without prior written approval by the Landscape Architect, may be rejected. Contractor shall not be entitled to be compensated by the Owner where the Contractor has installed rejected substitutions without receiving prior written approval.

D. Contract Price: Substituted Stabilized Decomposed Granite Paving material(s) shall not increase the Contract price.

1.8 LANDSCAPE ESTABLISHMENT PERIOD
A. Refer to Section 329813 – Landscape Establishment Period, for requirements under this Article.

1. During the duration of the Landscape Establishment Period, continuously maintain Stabilized Decomposed Granite Paving finishes until Final Acceptance of Work is granted. Immediately repair damage to the Work as the result of weather or traffic conditions. Report damage resulting from Work of other trades after installation of

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Stabilized Decomposed Granite Paving Work. Repair to match adjacent undisturbed Work.

PART 2 - PRODUCTS

2.1 DECOMPOSED GRANITE MATERIAL
A. Clean, hard, durable particles or fragmented fines of select crushed granite, river rock, or basalt.

Material fines shall be evenly mixed throughout the aggregate. When produced from gravel, fifty percent (50%) by weight of the material retained on a No. 4 sieve shall have one (1) fractured face.

B. The portion retained on the No. 4 sieve shall have a maximum percentage of wear of 50 at 500 revolutions as determined by AASHTO T96-77.

C. Portion passing a No. 4 sieve shall have a maximum liquid limit of 25 and a maximum plasticity index of 7, as determined by AASHTO T89-81 and AASHTO 90-81 respectively.

D. Composition: Decomposed Granite material shall be free from clay lumps, vegetable matter, or deleterious material.

E. Grading Requirements:

Percentage of Weight Passing a Square Mesh Sieve
(AASHTO T11-82 and T27-82)
Sieve Size Percent Passing
3/8” 100%
No. 4 95 – 100%
No. 8 75 – 80%
No.16 55 – 65%
No. 30 40 – 50%
No. 50 25 – 35%
No. 100 20 – 25%
No. 200 5 – 15%
F. Products & Manufacturers: Subject to compliance with requirements, provide products by the following:

1. Stabilized Decomposed Granite Paving:
a. Type: Refer to the Contract Drawings.
b. Supplier: Refer to the Contract Drawings.
c. Or equal, as approved by the Landscape Architect.

2.2 ORGANIC BINDER

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A. Organic Binder: Non-toxic, colorless, odorless, non-staining, concentrated organic powder that, when water is applied and then compressed, binds the Decomposed Granite material together, creating a natural-appearing, firm surface of Stabilized Decomposed Granite Paving.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by the following:
a. Material: Stabilizer®, Stabilizer Solutions, Inc., Phoenix, AZ. 1) Supplier:
a) KRC Rock, San Marcos, CA, ph. 800-427-0572.
b) Southwest Boulder & Stone, Fallbrook, CA, ph. 877.792.7625. c) Or equal, as approved by the Landscape Architect.
2) Application Rate: Per Manufacturer’s written recommendations. Minimum application rate of 12 lbs./ton.

2.3 EQUIPMENT
A. Mixing Equipment: Batch-type, using revolving blades or rotary drum.

B. Compaction Equipment: Power roller, weighing not less than five (5) tons.

2.4 ACCESSORIES
A. Soil Sterilant: Spray-applied, Non-Selective Post-Emergent Herbicide, for control of annual grasses and broadleaf weeds. Refer to Section 329400 – Landscape Planting Accessories.

Apply in locations designated to receive Stabilized Decomposed Granite Paving only.

B. Aggregate Sub-Base: Class II, per “Standard Specifications”, as required.

C. Water: Per ASTM C 94, from potable domestic source, and free from deleterious materials such as oils, acids, and organic matter. Transport as required.

D. Edging/Header Materials: Refer to Section 329400 – Landscape Planting Accessories.

E. Geotextile Filter Fabric: Refer to Section 329400 – Landscape Planting Accessories.

PART 3 - EXECUTION

3.1 EXAMINATION
A. Examine surfaces indicated to receive Stabilized Decomposed Granite Paving, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of surfacing.

B. Sub-grades shall have been rough graded to within 0.10 ft. of finish grades less depth in location to receive Stabilized Decomposed Granite Paving.

C. Insure edging materials and irrigation sleeving have been installed and are in place and secured.

Do not proceed with installation Work until unsatisfactory conditions have been corrected.

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3.2 PREPARATION
A. Application of Soil Sterilant:

1. Mixing: Mix Soil Sterilant product in sprayer tank with clean water, according to Manufacturer’s current printed instructions. Use sprayer, which will apply the solution uniformly, without disturbing the soil.

2. Spray Solution: Shake or stir prior to each application. Apply to dry soil surface only.

3. Application: Provide Soil Sterilant only in locations designated to receive Stabilized Decomposed Granite Paving, as indicated on the Contract Drawings.

4. Over-spraying: Avoid spraying on walls, adjoining pavements, and all areas to receive landscape planting.

5. Depth: Immediately after application of spray solution, thoroughly incorporate the solution into the soil to a depth of two-inches (2”) to four-inches (4”), per Manufacturer’s current printed instructions.

B. Compaction: After completion of soil sterilization operations, compact sub-base to minimum 90% compaction.

3.3 INSTALLATION
A. Installing Edging/Headers: Install Edgings/Headers, as indicated on the Contract Drawings.

Refer to Section 329400 – Landscape Planting Accessories for requirements. Edgings/Headers at the full depth of the perimeter of the Stabilized Decomposed Granite Paving, as indicated.

Edgings/Headers shall be straight or curving as required, and securely in place, true to line and grade as required. Align header edges and set flush with adjacent paving where applicable.

B. Installing Geo-textile Filter Fabric: Geo-textile Filter Fabric shall be installed only in locations designated to receive Stabilized Decomposed Granite Paving. Install Fabric accordingly as indicated in the Contract Drawings to prevent weeds from growing up through the Stabilized Decomposed Granite Paving. Place the Geotextile Filter Fabric across the entire width of the Paving surface; overlap ends of Fabric rolls at a minimum of six inches (6").

C. Installing Aggregate Sub-Base (as applicable):

1. Verification: Do not place Aggregate Sub-Base prior to acceptance of sub grade preparation.

2. Placement: Spread Aggregate Sub-Base to thicknesses shown on the Contract Drawings and compact to a minimum of ninety-percent (90%) compaction.

D. Installing Stabilized Decomposed Granite Paving:

1. Verification: Verify locations to receive Stabilized Decomposed Granite Paving.

2. Lines and Levels:
a. Install Stabilized Decomposed Granite Paving true to grade, providing proper drainage of water off path and properly coinciding with adjacent Work and elevations.
b. Provide a finished Stabilized Decomposed Granite Paving surface uniform in texture and appearance. Do not permit finished Work to vary more than 1/8 inch in 10 feet from true profile and cross section. Finished Work shall be installed to fully comply as a universally-accessible pavement surface, per applicable Code requirements.

3. Mixing:

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a. General: Stabilized Decomposed Granite Paving shall be thoroughly pre-blended before placement.
b. Organic Binder: Thoroughly pre-blend Decomposed Granite material with Organic Binder at the rate recommended by the Organic Binder manufacturer for each type of Decomposed Granite material specified, but not less than of twelve (12) pounds of Organic Binder per one (1) ton of Decomposed Granite material (dry weight).
1) It is essential the Organic Binder be thoroughly mixed, blended, and uniformly incorporated throughout the Decomposed Granite material to achieve a successful result. The Organic Binder locks the fines in the Decomposed Granite material together, trapping the larger crushed aggregate screenings. The Organic Binder does not act directly on larger aggregate screenings. Proper mixing is a must for a successful application. a) Blending is best accomplished in a plug mill; a truck mounted mixer or a portable mechanical mixer may also be used.
b) Blend Stabilized Decomposed Granite Paving mixture for a minimum of 15 minutes prior to placing on compacted sub-surface material. c) Drop spreading of Organic Binder over graded Decomposed Granite material is not acceptable. Mixing by roto-tilling is also not acceptable.
d) Organic Binder shall not be applied during, just prior to, or immediately following rainfall.

4. Placement:
a. General: After pre-blending, place the Stabilized Decomposed Granite Paving material onto the compacted sub-surface material. Carefully place to avoid segregation in two (2) equal two-inch (2”) lifts.
b. Grade, screed, and smooth the Stabilized Decomposed Granite Paving to desired finish grades. Allow for compaction of the material.

5. Watering: Apply water until moisture penetrates to the full depth of the Stabilized Decomposed Granite Paving.
a. Water activates the Organic Binder; it is essential that the full depth of the Stabilized Decomposed Granite Paving is saturated at this time. Apply water from a hand held hose with a spray nozzle set to coarse spray. Water pressure should not disturb the leveled Paving surface. Do not use a water truck for water distribution or a high-pressure sprayer.
1) Test for water penetration through random core inspections. After inspection of cores, fill cored holes with Paving removed; smooth and hand tamp to match adjoining surface grades.
2) A one (1)-hour application at a rate of +/-20 GPM per 1,000 sq. ft. of surface seems to achieve the desired full depth moisture penetration. 3) Let watered Stabilized Decomposed Granite Paving stand between six (6) to twenty-four (24) hours until all surface water has dissipated; the Paving surface should be moist, but not wet.

6. Compacting: While the Stabilized Decomposed Granite Paving material is still thoroughly moist, compact to a minimum 90% relative compaction, or as recommended by the Geotechnical Engineer. Compact each area with at least four (4) passes of the compacting equipment. After compacting, screed smooth.
a. Compaction should be done with a heavy lawn roller (minimum 225 pounds and maximum 30-inch width) to achieve finish grade and initial compaction. Handtamp edges around benches, signposts, trash receptacles, etc. Use a heavy (1-ton minimum) small rider, after having used the lawn roller, to obtain the desired final

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dense, smooth uniform texture. Do not use whackers, vibratory rollers or a vibrating plate tamper; the Stabilized Decomposed Granite Paving will not harden for weeks after vibration.
1) If the Decomposed Granite Paving surface is flaky or sticks to the roller drum, the Paving hydration level is deficient; cautiously add more water as required to achieve the Paving’s proper hydration level. 2) If the roller creates a wash board effect or rills, additional time is required to allow the Paving to achieve the proper hydration level.

7. Contaminated Areas: Do not permit Stabilized Decomposed Granite Paving to contaminate adjoining planting areas or finishes. Clean up and remove all material spilled into adjacent planting areas.

8. Grading: When surface areas have been rolled and it becomes necessary to add a thin layer of Stabilized Decomposed Granite Paving material to bring the surface to grade, the previously rolled or compacted area shall be thoroughly scarified to a depth of two-inches (2”) to provide a bond with the added Material.

9. Drainage: Surface to be compacted and graded to ensure proper drainage of water off walkway to adjacent surfacing and/or planting area.

10. Curing: Allow finished Stabilized Decomposed Granite Paving surface to dry completely. Set-up time varies, depending on weather conditions. a. A hot, dry climate will set up sooner than a cool, moist climate.

3.4 FIELD QUALITY CONTROL
A. Tests: For each lift of Stabilized Decomposed Granite Paving, provide written verification as to the degree of compaction by a certified testing laboratory. Re-compact failed areas until specified compaction is achieved.

B. Testing shall be the sole financial responsibility of the Contractor.

3.5 REVIEW OF COMPLETED INSTALLATION
A. Finished Stabilized Decomposed Granite Paving surfaces shall be smooth, uniform and solid, with no evidence of shipping or cracking. Dried, compacted material shall be firm through the entire depth, with no spongy areas. Loose material shall not be present on the surface initially.

After the first year of use, a minor amount of loose material is expected on the surface of Stabilized Decomposed Granite Paving finishes.

B. Loose Decomposed Granite material on the surface or unconsolidated crushed aggregate screenings below the surface of Stabilized Decomposed Granite Paving finishes is evidence of improper bonding due to poor mixing or insufficient watering. Test the loose material for adequate Organic Binder by wetting, then tamping, and allowing it to dry. If the material still is unconsolidated, the Organic Binder did not get mixed adequately throughout the Stabilized Decomposed Granite Paving material. If the material now is solid, initial watering was insufficient. Cracking or sponginess is evidence of excessive Organic Binder in the mix.

C. Unconsolidated Paving areas shall be excavated and replaced accordingly with new Stabilized Decomposed Granite Paving material with a high proportion of fines meeting the grading requirements above, and pre-blended with Organic Binder per the procedures listed above.

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Patched areas shall be wetted thoroughly and rolled smooth. Patching shall be completed prior to any surface smoothing.

D. Smoothing of Stabilized Decomposed Granite Paving: Significant irregularities shall be smoothed out prior to final acceptance of Work. Smoothing shall be accomplished by rewetting/saturating rough areas thoroughly, and then rolling the material again with a heavy roller (1,000–1,500 lb. powered walk-behind roller, or small rider). Whackers are not recommended.

E. Tolerances of Stabilized Decomposed Granite Paving:

1. Depth: Final thickness of completed Stabilized Decomposed Granite Paving shall not vary more than 1/4-inch from dimension indicated in the Contract Drawings.

Measurements may be taken by means of test holes taken at random, finished surfaces.

Correct any variations in the thickness beyond the allowable ½ inch by repeating the procedures listed above.

F. Width: Final width of completed Stabilized Decomposed Granite Paving shall not vary more than ½ inch from typical dimension width as indicated. Measurements may be taken at random cross sections along the finished surface.

G. Where installed, no edges of the Geotextile Filter Fabric shall be exposed.

3.6 REPAIRS AND PROTECTION
A. Damage or Defective Installation: Remove and replace Stabilized Decomposed Granite Paving that is damaged or defective, or does not meet the requirements indicated herein this Section.

B. Replacement of Stabilized Decomposed Granite Paving: If compression tests of cored samples fail to meet the specified compressive strengths as recommended by the Manufacturer, immediately remove and replace the Stabilized Decomposed Granite Paving with material conforming to the Contract Specifications.

C. Protection: Protect Stabilized Decomposed Granite Paving against traffic, injury, defacement or damage (by rain or other outside force during curing period) and subsequent construction operations until Substantial Completion. Exclude traffic from Stabilized Decomposed Granite Paving for a minimum of fourteen (14) days after placement. When construction traffic is permitted, it is the Contractor’s responsibility to maintain Stabilized Decomposed Granite Paving as clean and level as possible by removing surface stains, spillage of materials as they occur, and traffic markings/grooves, etc., and to repair any damaged caused by said construction traffic.

D. Maintain Stabilized Decomposed Granite Paving finishes free of stains, discoloration, dirt, and other foreign material until Final Acceptance of Work.

3.7 CLEAN UP AND PROTECTION
A. For Work under this Section, keep Work area in a clean, orderly, and safe condition. Contractor shall remove trash caused from his Work on a weekly basis throughout the duration of the Work.

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B. Protect Stabilized Decomposed Granite Paving from damage due to landscape operations, operations by other Contractors and trades, and trespassers. Maintain protection during installation and maintenance periods.

C. Upon completion of his Work under this Section, the Contractor shall remove rubbish, waste, debris, excess construction materials, and other items resulting from construction operations offsite as described herein this Section and directed by the Landscape Architect. Clean all adjoining pavements, edgings/headers free from excess Stabilized Decomposed Granite Paving material.

3.8 FINAL REVIEW
A. Final Review under this Section shall be performed upon completion of the Landscape Establishment Period. Refer to Section 329813 – Landscape Establishment Period, for requirements.

END OF SECTION

PAVEMENT MARKINGS
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SECTION 32 17 23 - PAVEMENT MARKINGS
PART 1 - GENERAL

1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract apply to this Section.

B. Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC), Sections 210, 214, 310, and 314.

C. Standard Plans for Public Works Construction (SPPWC), Std. Plan 180-0 D. California Building Code (CBC), Section 1129B.4
E. California Green Building Standards Code, Section 5.106.5.2.1

1.2 SUMMARY
A. Section includes painted striping and markings applied to asphalt and concrete pavement.

B. Related Requirements:

1. California Building Code (CBC), Section 1129B for accessibility parking.

2. California Green Building Standards Code, Section 5.106.5.2.1

1.3 PREINSTALLATION MEETINGS
A. Pre-installation Conference: Conduct conference at Project site.

1. Review methods and procedures related to marking pavement including, but not limited to, the following:
a. Pavement aging period before application of pavement markings. b. Review requirements for protecting pavement markings, including restriction of

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321723 - 2
traffic during installation period.

1.4 ACTION SUBMITTALS
A. Product Data: For each type of product.

1. Include technical data and tested physical and performance properties.

1.5 QUALITY ASSURANCE
A. Regulatory Requirements: Comply with materials, workmanship, and other applicable requirements of Standard Specifications for Public Works Construction (SSPWC).

PRODUCTS

1.6 GENERAL
A. All construction materials shall conform to Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC), Sections 210 and 214; and California Green Building Standards Code, Section 5.106.5.2.1

EXECUTION

1.7 GENERAL
A. All construction methods shall conform to Greenbook 2021, Standard Specifications for Public Works Construction (SSPWC), Sections 310 and 314; California Building Code (CBC), Section 1129B; and California Green Building Standards Code, Section 5.106.5.2.1

END OF SECTION

LANDSCAPE IRRIGATION
328400 - 1
SECTION 328400 - LANDSCAPE IRRIGATION
PART 1 - GENERAL

1.1 RELATED DOCUMENTS
A. Project Specifications:

1. Section 312000 – Earth Moving.

2. Section 329113 – Soil Preparation.

3. Section 329200 – Lawns & Grasses.

4. Section 329300 – Exterior Plants.

5. Section 329400 – Landscape Planting Accessories.

6. Section 329813 – Landscape Establishment Period.

B. American Society for Testing & Materials:

1. ASTM D1120.

2. ASTM D1785.

3. ASTM D2241.

4. ASTM D2466.

5. ASTM D2467.

6. ASTM D2564.

7. ASTM D2774.

8. ASTM D2855.

9. ASTM F402.

10. ASTM F656.

11. ASTM F690.

1.2 SUMMARY
A. It is the intent of the Specifications and Drawings that the finished system is complete in every respect and shall be ready for operation satisfactory to the Landscape Architect.

B. The work shall include all materials, labor, services, transportation, and equipment necessary to perform the work as indicated on the Drawings, in these Specifications, and as necessary to complete the contract.

C. Section Includes:

1. Piping.

2. Automatic control valves.

3. Sprinklers.

4. Drip irrigation specialties.

5. Control system.

6. Boxes for automatic control valves.

1.3 DEFINITIONS AND APPLICABLE STANDARDS

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A. References:

1. ANSI – American National Standards Institute.

2. ASTM – American Society for Testing & Materials.

3. NFPA – National Fire Protection Association.

4. NSF – National Sanitary Foundation.

B. Mainline Piping: Downstream of backflow prevention device and to the control valves.

Piping is under constant pressure during.

C. Lateral Line Piping: Downstream from control valves to the sprinklers and drip specialties. Piping is under pressure during flow.

D. Low Voltage: As defined in NFPA 70 for circuits and equipment operating at less than 50V or for remote control, signaling power-limited circuits.

E. The following are industry abbreviations for plastic materials:

1. PVC: Polyvinyl chloride plastic.

2. Poly: Polyethylene plastic.

3. FIPT: Female Iron Pipe Thread.

4. MIPT: Male Iron Pipe Thread.

F. Date of Completion: The date at the close of the Landscape Establishment Period when the work has been completed, checked, accepted, and written approval of the work has been given by the Landscape Architect.

G. Date of Acceptance: The date at the end of the warranty period as specified herein, and written acceptance has been given by the Landscape Architect.

H. Finish Grade: Elevation of finished surface of planting soil within 1/10th of an inch.

1.4 CONSTRUCTION DRAWINGS
A. Due to the scale of the Drawings, it is not possible to indicate all offsets, fittings, sleeves, etc. which may be required. Carefully investigate the structural and finished conditions affecting this work and plan the work accordingly, furnishing such fittings, etc. as may be required to meet such conditions. Drawings are generally diagrammatic and indicative of the work to be installed. The work shall be installed in such a manner as to avoid conflicts between irrigation systems, planting, and Landscape Architectural features.

B. All work called for on the Drawings by notes or details shall be furnished and installed whether or not specifically mentioned in the Specifications. When an item is shown on the Drawings but not shown on the Specifications or vice versa, it shall be deemed to be as shown on both. Landscape Architect shall have final authority for clarification.

C. Do not willfully install the irrigation system as shown on the Drawings when it is obvious in the field that obstructions, grade differences or discrepancies in area dimensions exist that might not have been considered in engineering. Such obstructions or differences should be brought to the attention of the Landscape Architect as soon as detected. In the event this notification is not performed, the Contractor assumes full responsibility for any revision necessary.

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1.5 PERFORMANCE REQUIREMENTS
A. Location of Sprinklers and Specialties:

1. The design location is approximate. Make minor adjustments necessary to avoid plantings, trees, and obstructions such as signs and light standards.

2. Where the location of the obstruction does not allow for installation of the sprinkler head, Contractor shall adjust the location of the heads, change nozzles, or add heads as necessary to avoid the obstruction.

3. Maintain 100 percent (head-to-head) irrigation coverage of areas indicated.

B. Minimum Working Pressures: The following are minimum pressure requirements for piping, valves, and specialties unless otherwise indicated:

1. Mainline Piping: 200 PSI.

2. Lateral Line Piping:200 PSI.

1.6 PRE-CONSTRUCTION SUBMITTALS
A. Product Data:

1. Prior to ordering of any materials, and for each type of product indicated provide submittals for acceptance by the Landscape Architect. Include rated capacities, operating characteristics, electrical characteristics, and furnished specialties and accessories.

2. Contractor shall prepare submittals “in house” and no submittals from suppliers, distributors, or other third parties shall be acceptable.

3. The submittals shall include the following information:
a. A title sheet with the job name, the Contractor’s name, address and telephone number, submittal date and submittal number.
b. An index sheet showing the item number (i.e. 1, 2, 3, etc.); an item description (i.e. sprinkler head); the manufacturer’s name (i.e. Rain Bird); the item model number (i.e. 44DLRC); and the page(s) in the submittal set that contain the catalog cuts.
c. The catalog cuts are to be one or two pages from the most recent manufacturer’s catalog that indicate the product submitted. Do not submit parts lists, exploded diagrams, price lists or other extra information. d. The catalog cuts shall clearly indicate the manufacturer’s name and the item model number. The item model number, all specified options and specified sizes shall be circled or highlighted on the catalog cuts. e. Submittals for equipment indicated on the legend without manufacturer names, or “as acceptable substitution”, shall contain the manufacturer, Class or Schedule, ASTM numbers and/or other certifications as indicated in these specifications.

4. Submittal format requirements:
a. Submittals shall be provided as one complete package for the project. Multiple or partial submittal packages will not be reviewed.
b. The submittal package shall be submitted as a single PDF file. c. The submittal package shall have all pages numbered in the lower right-hand corner. Page numbers shall correspond with the submittal index. d. Landscape Architect will not review the submittal package unless provided in the format described above.

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B. Substitutions:

1. If the Contractor wishes to substitute any equipment or materials for those equipment or materials listed on the Drawings and Specifications, they may do so by providing the following information to the Landscape Architect for approval. a. Written statement indicating the reason for making the substitution. b. Catalog cut sheets, technical data, and performance information for each substitute item.
c. The difference and potential savings in installed price if the item is accepted.

No contract price increases shall be allowed.
d. Estimated schedule impact.

2. Landscape Architect will allow no substitutions without prior written acceptance.

3. Landscape Architect will allow no substitutions of the control system indicated on the Drawings.

1.7 AS-BUILT RECORD DRAWINGS
A. Record accurately on one set of drawings all changes in the work constituting departures from the original contract drawings and the actual final installed locations of all required components as shown below.

B. The as-built record drawings shall be prepared to the satisfaction of the City. Prior to final inspection of work, submit record drawings to the Landscape Architect.

C. As-built record drawings shall be prepared using AutoCAD 2020 drafting software and the original irrigation drawings as a base. No manual drafted record drawings shall be acceptable. The Contractor may obtain digital base files from the Landscape Architect.

D. Prior to final inspection of work, submit as-built record drawings as PDF plotted digital files for review by the Landscape Architect. After acceptance by the Landscape Architect, make required changes and re-plot the as-built record drawings as a new PDF file and provide on a memory stick marked with the job name and date.

E. Requirements of As-built record drawings.

1. Record drawing information and dimensions shall be collected on a day-to-day basis during the installation of the pressure mainline to fully indicate all routing locations and pipe depths. Locations for all other irrigation equipment shall be collected prior to the final inspection of the work.

2. Two dimensions from two permanent points of reference such as buildings, sidewalks, curbs, streetlights, hydrants, etc. shall be shown for each piece of irrigation equipment shown below. Where multiple components are installed with no reasonable reference point between the components, dimensioning may be made to the irrigation equipment. All irrigation symbols shall be clearly shown matching the irrigation legend for the drawings. All lettering on the record drawings shall be a minimum of 1/8 inch in size.

3. Show locations and depths of the following items:
a. Point of connection (including water POC, backflow devices, master control valves, flow sensors, etc.)
b. Routing of sprinkler pressure main lines (dimensions shown at a maximum of 100 feet along routing)
c. Isolation valves

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d. Automatic remote control valves (indicate station number and size) e. Quick coupling valves
f. Drip air relief and flush valves
g. Routing of control wires where installed separate from irrigation mainline. h. Related equipment (as may be directed).

1.8 FIELD QUALITY CONTROL
A. Provide at least one English speaking person who shall be present at all times during execution of this portion of the work and who shall be thoroughly familiar with the type of materials being installed and the manufacturer's recommended methods of installation and who shall direct all work performed under this section.

B. The manufacturer’s directions and detailed Drawings shall be followed in all cases where the manufacturer of articles used in this contract furnishes directions covering points not shown in the Drawings and Specifications.

C. All local, municipal, and state laws, rules and regulations governing or relating to any portion of this work are hereby incorporated into and made a part of these specifications, and their provisions shall be carried out. Anything contained in these Specifications shall not be construed to conflict with any of the above rules and regulations of the same.

However, when these Drawings and Specifications call for or describe materials, workmanship, or construction of a better quality, higher standard, or larger size than is required by the above rules and regulations, the provisions of these Drawings and Specifications shall take precedence.

D. Materials supplied for this project shall be new and free from any defects. Defective materials shall be replaced immediately at no additional cost.

E. Secure the required licenses and permits including payments of charges and fees, give required notices to public authorities, verify permits secured or arrangements made by others affecting the work of this section.

F. Required permits and fees for this work are the sole responsibility of the Contractor.

1.9 INSPECTIONS
A. The Contractor shall permit the Landscape Architect to visit and inspect, at all times, any part of the work and shall provide safe access for such visits.

B. Where the Specifications require work to be tested by the Contractor, it shall not be covered until accepted by the Landscape Architect. The Contractor shall be solely responsible for notifying the Landscape Architect a minimum of 48 hours in advance, where and when the work is ready for testing. Should any work be covered without testing or acceptance, it shall be, if so ordered, uncovered at the Contractor's expense.

C. Inspections will be required for the following at a minimum:

1. Final inspection prior to the start of Landscape Establishment Period.

2. Final acceptance prior to turnover.

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D. Work that fails testing and is not accepted will be retested. Hourly rates and expenses of the Landscape Architect for re-inspection or retesting will be paid by the Contractor at no additional cost.

1.10 DELIVERY, STORAGE, AND HANDLING
A. Deliver piping with factory-applied end caps. Maintain end caps through shipping, storage, and handling to prevent pipe-end damage and to prevent entrance of dirt, debris, and moisture.

B. Exercise care in handling, loading, unloading, and storing plastic pipe and fittings under cover until ready to install. Transport plastic pipe only on a vehicle with a bed long enough to allow the pipe to lay flat to avoid undue bending and concentrated external load.

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

D. Use all means necessary to protect irrigation system materials before, during, and after installation and to protect the installation work and materials of all other trades. In the event of damage, immediately make all repairs and replacements necessary to the acceptance of the Landscape Architect and at no additional cost.

1.11 PROJECT CONDITIONS
A. Verify and be familiar with the locations, size, and detail of points of connection provided as the source of water and electrical supply to the irrigation system.

B. Irrigation design is based on the available water pressure shown on the Drawings. Verify the static water on the project prior to the start of construction. Should a discrepancy exist, notify the Landscape Architect prior to beginning construction.

C. Prior to cutting into the soil, locate all cables, conduits, sewer septic tanks, and other utilities as are commonly encountered underground, and take proper precautions not to damage or disturb such improvements. If a conflict exists between such obstacles and the proposed work, promptly notify the Landscape Architect who will arrange for relocations.

Proceed in the same manner if a rock layer or any other such conditions are encountered.

D. Protect all existing utilities and features to remain on and adjacent to the project site during construction. Repair, at Contractor’s own cost, all damage resulting from Contractor’s operations or negligence.

E. Coordinate installation of required sleeving as shown on the plans.

F. Verify and be familiar with the existing irrigation systems in areas adjacent to and within the Project area of work.

G. Protect all existing irrigation systems, in areas adjacent to and within the project area of work, from damage due to Contractor’s operations.

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H. Interruption of Existing Water Service: Do not interrupt water service to facilities occupied, unless permitted under the following conditions and then only after arranging to provide temporary water service according to the requirements indicated:

1. Notify Landscape Architect no fewer than two working days (48 hours) in advance of proposed interruption of water service.

2. Do not proceed with interruption of water service without the Landscape Architect’s written permission.

1.12 EXTRA MATERIALS
A. Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents. Supply as a part of this contract the following items for each Point of Connection:

1. One wrench for disassembly and adjustment of each type of sprinkler head used in the irrigation system.

2. Two extra sprinkler heads of each size and type.

3. Two hundred feet of drip system tubing of each size and type.

4. Two extra drip flush valve / indicator head nozzles.

5. Twenty-five additional drip tubing barbed fittings of each of the following: 90° elbows, TEEs, couplings, and barb x 1/2" MIPT adapters.

B. The above equipment shall be turned over to the Landscape Architect at the final inspection.

1.13 GUARANTEE
A. The entire irrigation system, including all work done under this contract, shall be unconditionally guaranteed against all defects and fault of material and workmanship, including settling of backfilled areas below grade, for a period of one (1) year following the filing of the Date of Completion.

B. Should any problem with the irrigation system be discovered within the guarantee period, it shall be corrected by the Contractor at no additional expense to the City / Owner within ten (10) calendar days of receipt of written notice from the Landscape Architect. When the nature of the repairs as determined by the Landscape Architect constitutes an emergency (i.e. broken pressure line) the Landscape Architect may proceed to make repairs at the Contractor's expense. Damage to existing improvements resulting either from faulty materials or workmanship, or from the necessary repairs to correct same, shall be repaired to the satisfaction of the Landscape Architect by the Contractor, all at no additional cost.

C. Manufacturer's warranties shall not relieve the Contractor of his liability under the guarantee. Such warranties shall only supplement the guarantee.

D. Guarantee shall be submitted on Contractor’s own letterhead as follows:

GUARANTEE FOR IRRIGATION SYSTEM
We hereby guarantee that the irrigation system we have furnished and installed is free from defects in materials and workmanship, and the work has been completed in accordance with the Drawings and Specifications, ordinary wear and tear and unusual abuse, or neglect excepted. We agree to repair or replace any defective material during

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the period of one year from the date of filing of the Notice of Completion and also to repair or replace any damage resulting from the repairing or replacing of such defects at no additional cost. We shall make such repairs or replacements within 10 calendar days following written notification by the Landscape Architect. In the event of our failure to make such repairs or replacements within the time specified after receipt of written notice from Landscape Architect, we authorize the Landscape Architect to proceed to have said repairs or replacements made at our expense and we will pay the costs and charges therefore upon demand.

PROJECT NAME:

PROJECT LOCATION:

CONTRACTOR NAME:

ADDRESS:

TELEPHONE:

SIGNED:

DATE:

PART 2 - PRODUCTS

2.1 PVC PIPES AND FITTINGS
A. Pipe shall be marked continuously with manufacturer's name, nominal pipe size, schedule or class, PVC type and grade, National Sanitation Foundation approval, Commercial Standards designation, and date of extrusion.

B. Comply with requirements in the piping schedule for applications of pipe and fitting materials, and for joining methods for specific services, service locations, and pipe sizes.

C. Mainline piping upstream of the remote-control valve shall be Class 315 solvent weld PVC conforming to ASTM D2241.

D. Lateral line piping and drip system header piping, 3/4 inches through 2 inches in diameter, downstream of the remote-control valve shall be Schedule 40 solvent weld PVC conforming to ASTM D1785.

E. Sleeves carrying pipes and conduits under paving 2 inches in diameter and larger shall be Schedule 40 solvent weld PVC conforming to ASTM D1785.

F. PVC pipes shall be purple color coded for use with recycled water systems. All PVC pipe shall be imprinted with recycled water warning statements as required by local codes.

G. PVC fittings shall be as follows:

1. Manufactured from PVC compounds conforming to ASTM D1120.

2. Mainline fittings shall be Schedule 80 PVC, solvent weld type, conforming to ASTM D2467.

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3. Lateral line fittings shall be Schedule 40 PVC, solvent weld type, conforming to ASTM D2466.

4. All threaded PVC fittings, regardless of where used, shall be Schedule 80 PVC conforming to ASTM D2464.

5. PVC Unions: Shall be Schedule 80 PVC with socket inlets and MIPT or FIPT outlet as shown.

2.2 PIPING JOINING MATERIALS
A. PVC pipe shall be joined using a two-step process of primer and solvent cement.

B. The primer for joining PVC Piping shall conform to ASTM F 656.

C. The solvent cement for joining PVC Piping shall conform to ASTM D 2564.

D. The primer and solvent cement shall be of the manufacturer, model, and formulation as indicated on the Drawings.

2.3 AUTOMATIC CONTROL VALVES
A. Remote-Control Valves:

1. Remote-control valves shall be the manufacturer, model, and sizes indicated on the Drawings.

2. Remote-control valves shall have brass bodies, stainless steel and brass trim, and chlorine resistant rubber internal components.

3. Remote-control valve shall be normally closed, diaphragm type with manual-flow adjustment, internal filter protection, and operated by 24V ac solenoid.

4. Where noted, remote-control valve shall have an adjustable pressure regulator to control the downstream water pressure during operation.

2.4 MISCELLANEOUS VALVES AND EQUIPMENT
A. Plastic, Drip Filters:

1. Drip filter shall be the manufacturer, model, and sizes indicated on the Drawings.

2. The drip filter shall have fiberglass reinforced nylon bodies and stainless-steel filter element.

3. The drip filter shall have a built-in pressure regulator and a visible “clean (green) / dirty (red) filter status indicator built into the basket strainer cap.

4. The drip filter shall have MIPT inlet and outlet connections.

5. The drip filter shall have filtration equivalent to 200 mesh or greater.

6. Drip remote control valve assemblies sized at 1-inch shall include one basket strainer.

B. Drip System Flush Valves:

1. Drip system flush valve shall be the manufacturer, model, and sizes indicated on the Drawings.

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2. The drip system flush valve shall also indicate the operational status of the drip system with an orange color coded nozzle.

3. The drip system flush valve shall be installed on a 12” pop-up sprinkler head as indicated on the Drawings.

C. Valve Assembly Components:

1. Unions shall be the manufacturer, model, and size indicated on the Drawings.

2. Unions shall be Sch. 80 PVC type with slip x FIPT and slip x MIPT used as indicated on the Drawings.

2.5 SPRINKLERS
A. General Requirements: Designed for uniform coverage over entire spray area indicated at available water pressure.

B. Plastic, Spray Sprinklers:

1. Adjustable arc, fan spray pattern with matched precipitation nozzles and adjustable radius and arc patterns.

2. Description:
a. Body Material: ABS.
b. Cap: Plastic, color coded purple for use with recycled water. c. Pop-up Height: 6” and 12”.
d. Nozzle: ABS.
e. Retraction Spring: Stainless steel.
f. Internal Parts: Corrosion resistant.
g. Pattern: Adjustable with radius and flow adjustment. h. Pressure Regulation: Preset in pop-up body at 30 PSI. i. Check Valve: Yes.

3. Spray head shall be of the manufacturer, model, size, and type indicated on the Drawings.

4. Spray head bodies shall be equipped with a built-in check valve and pressure regulation.

5. Swing joints for spray heads shall be a manufactured Poly type construction, and MIPT inlet and outlet. Swing joint shall be 1/2” size with a 12” lay length.

C. Plastic, Rotary Sprinklers:

1. Adjustable arc, single stream with matched precipitation nozzles and adjustable radius and arc patterns.

2. Description:
a. Body Material: ABS.
b. Cap: Plastic, color coded purple for use with recycled water. c.
d. Pop-up Height: 12”.
e. Nozzle: Plastic.
f. Retraction Spring: Stainless steel.
g. Internal Parts: Corrosion resistant.
h. Pattern: Adjustable with radius and flow adjustment. i. Pressure Regulation: Preset in pop-up body at 45 PSI. j. Check Valve: Yes.

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3. Rotary head shall be of the manufacturer, model, size, and type indicated on the Drawings.

4. Rotary heads shall be equipped with a built-in check valve and pressure regulation.

5. Swing joints for rotary heads shall be a manufactured PVC type construction, rubber O-rings, and MIPT inlet and outlet. Swing joint shall be 3/4” size with a 12” lay length.

2.6 DRIP TUBING
A. Drip tubing shall be of the manufacturer, model, size, and flow rate indicated on the Drawings.

1. Tubing: Flexible PE, 17mm diameter, black exterior color with a purple color coded strip to indicate use with recycled water.

2. Emitters: Pressure compensating, turbulent flow, pressure compensating with builtin check valve.

3. Flow Rate: 0.53 gallons per hour as indicated on the Drawings.

4. Emitter Spacing: 12” on center.

5. Fittings: 17mm barb type, same manufacturer as tubing.

B. Drip components such as barbed fittings, tubing hold down stakes and pop-up flush valve / indicator heads shall be of the manufacturer, model, size, and type indicated on the Drawings.

2.7 CONTROL SYSTEMS
A. Control system shall be of the manufacturer, model, size as indicated on the Drawings.

B. Control System Description:

1. The control system shall include a radio transmitter and receiver capable of controlling up to 4 individual zones.

2. The control system transmitter shall be installed inside the existing controller enclosure and wired to the controller.

3. The control system receiver shall be installed inside the new valve box at the control valve and wired to the control valve.

4. The control valve shall have its solenoid replaced with a DC latching solenoid as indicated on the Drawings.

5. The control system receiver shall have batteries installed per the manufacturer’s instructions.

C. Low voltage control wires shall be of the manufacturer, model, size as indicated on the Drawings.

D. Waterproof wire connectors shall be of the manufacturer, model, size as indicated on the Drawings.

2.8 IRRIGATION EQUIPMENT BOXES
A. Plastic Boxes:

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1. The drip remote control valve shall be installed below grade in a plastic box.

2. Description: The valve box and cover shall be of the manufacturer, model, size, and color as indicated on the Drawings.
a. The cover and box shall be capable of sustaining a load of 1,500 pounds. b. Valve box extensions shall be by the same manufacturer as the valve box. c. The plastic irrigation valve box cover shall be an overlapping ‘T’ type. d. Boxes shall have purple colored lids.
e. Box covers shall be equipped with a “hexagon-head” locking kit to secure the lid to the box.

3. Sizes:
a. Quick Coupler valves shall be installed inside 10” round valve boxes. b. Ball valves, remote control valves and drip remote control valves shall be installed inside standard sized rectangular valve boxes. c. Each valve box shall house a single valve as described above.

B. Concrete Boxes:

1. Where indicated in the Drawings the existing remote control valves, gate valves, and quick coupler valves shall be installed inside of traffic rated concrete valve boxes with hinged steel lids.

2. Hinged steel lids shall be painted purple to indicate the use with recycled / reclaimed water.

C. Drainage Backfill: Cleaned gravel or crushed stone, graded to an average size of 3/4 inch shall be placed inside the valve box. The minimum depth of drainage backfill in valve boxes shall be 4 inches.

D. Landscape Fabric:

1. Landscape fabric shall be used to fully wrap the sides and bottom of the valve box.

2. Landscape fabric for valve box assemblies shall be 5.0- oz. weight woven polypropylene weed barrier. Landscape fabric shall have a burst strength of 225 PSI, a puncture strength of 60 lbs. and capable of water flow of 12 gallons per minute per square foot.

3. Type: DeWitt Pro 5 Weed Barrier or approved equal.

PART 3 - EXECUTION

3.1 TRENCHING
A. Provide a minimum cover of 18” over the top of mainline piping.

B. Provide a minimum cover of 12” over the top of lateral line piping.

C. Provide a minimum cover of 24” over the top of sleeves in pedestrian areas. Provide a minimum cover of 36” over the top of sleeves in vehicular areas.

D. Trenching under existing trees shall be performed by hand. The Contractor shall take care to protect the roots of the trees from damage by the trenching exercise.

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3.2 PIPING INSTALLATION
A. Location and Arrangement: Drawings indicate location and arrangement of piping systems. Install piping as indicated unless deviations are approved by the Landscape Architect.

B. During loading, transportation and unloading, every precaution shall be taken to prevent damage to the pipe. No pipe shall be dropped from trucks or allowed to roll down slides without proper retaining ropes. During transportation the pipe shall rest on suitable pads, strips, skids or blocks securely wedged or tied in place. Any pipe damaged shall be replaced.

C. Carefully inspect all pipe and fittings before installation, removing dirt, scale, burrs, and reaming. Install pipe with all markings up for visual inspection and verification. Pipe shall not exhibit scratches or gouges. Defective, damaged, or unsound pipe shall be rejected and must be removed from the site.

D. Install fittings for changes in direction and branch connections.

E. PVC pipes shall be installed in a manner which will provide for expansion and contraction as recommended by the pipe manufacturer.

F. Install underground thermoplastic piping according to ASTM D 2774 and ASTM F 690.

G. Install PVC piping in dry weather when the temperature is above 40 deg F. Allow joints to cure at least 24 hours at temperatures above 40 deg F before testing.

H. Install piping in sleeves under decomposed granite walkways.

3.3 PVC JOINT CONSTRUCTION
A. PVC Piping Solvent-Cemented Joints: Clean and dry joining surfaces. Join pipe and fittings according to the following:

1. Comply with ASTM F 402 for safe-handling practice of cleaners, primers, and solvent cements.

2. PVC Non-pressure Piping: Join according to ASTM D 2855.

3.4 EQUIPMENT INSTALLATION
A. The ball valves, quick coupler valves, remote-control valves, and drip remote control valve assemblies shall be installed below grade in valve boxes as indicated in the Drawings.

B. Where indicated on the Drawings the existing remote control valves, gate valves, and quick coupler valves shall be installed inside of traffic rated concrete valve boxes with hinged steel lids.

C. Components indicated in the Drawings shall be considered required by the assembly and shall be installed as shown.

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3.5 SPRINKLER INSTALLATION
A. Sprinklers shall be installed as indicated in the Drawings.

B. Height of sprinklers above grade, distance from hardscape features, walls and buildings shall be as indicated on the Drawings.

C. Flush all lateral lines with water prior to the installation of the heads and nozzles.

D. Adjust nozzles to provide complete coverage to the landscaped area without overspray onto buildings, walls, or adjacent hardscape areas.

E. Adjustment of sprinkler head layout may be required to accommodate trees, planting and other vertical obstructions and shall be performed at no additional cost.

3.6 DRIP IRRIGATION SPECIALTY INSTALLATION
A. Install drip tubing at the depth below grade indicated on the Drawings.

B. Install drip tubing products at the row spacing indicated on the Drawings.

C. Install drip tubing so that the spacing between the first row of drip tubing in a planted area is no more than 4 inches from the edge of any paving, roadway, or curbing.

D. Install drip filter units as indicated on the Drawings.

E. Install flush valve / indicator heads as indicated on the Drawings.

3.7 CONTROL SYSTEM INSTALLATION
A. Equipment Mounting: Install control system as indicated on the Drawings.

B. Verify the radio signal from the controller is capable of actuating (on and off) the new remote control valves.

C. Install low voltage wires and waterproof wire connectors as indicated on the Drawings.

3.8 CONTROLLER PROGRAMMING
A. Connect remote control irrigation valve wires to the assigned valve ports in the controller.

B. Test the radio control system for operation prior to planting.

3.9 ADJUSTING
A. Adjust valves, align heads, and check the coverage of each system prior to coverage test.

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B. If it is determined by the Landscape Architect that additional adjustments or nozzle changes will be required to provide proper coverage, all necessary changes or adjustments shall be made prior to any planting.

C. The entire system shall be operating properly before any planting operations commence.

D. Automatic control valves are to be adjusted so that the irrigation heads operate at the pressure recommended by the manufacturer. The adjustment of the control valve pressures shall be made using a pressure gage to adjust pressure to the recommended pressure at the highest, or farthest sprinkler head or drip flush valve on each control valve zone.

E. Adjust sprinklers and devices so they will be flush with finish grade.

3.10 CLEANING
A. Prior to installation of irrigation heads, the valves shall be opened, and a full head of water used to flush out the lines and risers.

B. Irrigation heads shall be installed after the flushing of the system has been completed.

C. All drip tubing systems shall be fully flushed with water through the flush valves and all drip filters cleaned prior to the final observations.

3.11 DEMONSTRATION
A. Do not allow or cause any of the work of this section to be covered up or enclosed until it has been observed, tested, and accepted by the Landscape Architect.

B. The Contractor shall be solely responsible for notifying the Landscape Architect a minimum of 48 hours in advance, where and when the work is ready for testing.

C. When the irrigation system is completed, the Contractor shall perform a coverage test of each system in its entirety to determine if the water coverage for the planted areas is complete and adequate in the presence of the Landscape Architect.

D. The Contractor shall furnish all materials and perform all work required to correct any inadequacies of coverage due to deviations from the plans, or where the system has been willfully installed as indicated on the Drawings when it is obviously inadequate, without bringing this to the attention of the Landscape Architect.

E. The coverage test shall be accepted by the Landscape Architect and accomplished before starting any planting.

3.12 BACKFILLING
A. Backfill material on all lines shall be the same as adjacent soil free of debris, litter, and rocks over 1/2 inch in diameter.

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1. Backfill shall be tamped in 4-inch layers under the pipe and uniformly on both sides for the full width of the trench and the full length of the pipe. Backfill materials shall be sufficiently damp to permit thorough compaction, free of voids. Backfill shall be compacted to dry density equal to adjacent undisturbed soil and shall conform to adjacent grades.

2. Flooding in lieu of tamping is not allowed.

3. Under no circumstances shall truck wheels be used to compact backfill.

4. Provide sand backfill a minimum of 4 inches over and under all piping under paved areas.

3.13 MAINTENANCE
A. During the Landscape Establishment Period the Contractor shall adjust and maintain the irrigation system in a fully operational condition providing complete irrigation coverage to all intended plantings.

3.14 COMPLETION CLEANING
A. Clean up shall be made as each portion of the work progresses. Refuse and excess dirt shall be removed from the site, all walks and paving shall be swept, and any damage sustained on the work of others shall be repaired to original conditions.

B. Dispose of waste, trash, and debris in accordance with applicable laws and ordinances and as prescribed by authorities having jurisdiction. Bury no such waste material and debris on the site. Burning of trash and debris will not be permitted. The Contractor shall remove and dispose of rubbish and debris generated by his work and workmen at frequent intervals or when ordered to do so by the Landscape Architect.

C. At the time of completion, the entire site will be cleared of tools, equipment, rubbish, and debris which shall be disposed of off-site in a legal disposal area.

3.15 COMPLETION
A. At the time of the pre-Landscape Establishment Period inspection, the Landscape Architect will inspect the work, and if not accepted, will prepare a punch list of items to be completed by the Contractor.

B. Punch list shall be checked off by contractor and submitted to Landscape Architect prior to any follow-up meeting. This checked off list to indicate that all punch list items have been completed.

C. At the time of the post-Landscape Establishment Period or final inspection the work will be re-inspected, and final acceptance will be in writing by the Landscape Architect.

D. The Landscape Architect shall have final authority on all portions of the work.

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E. After the system has been completed, the Contractor shall instruct the City / Owner in the operation and maintenance of the irrigation system and shall furnish a complete set of operating and maintenance instructions.

F. Any settling of trenches which may occur during the one-year period following acceptance shall be repaired to the Landscape Architect's satisfaction by the Contractor without any additional expense to the City / Owner. Repairs shall include the complete restoration of all damage to planting, paving or other improvements of any kind as a result of the work.

END OF SECTION 328400 - LANDSCAPE IRRIGATION

SOIL PREPARATION
329113 - 1
SECTION 329113 – SOIL PREPARATION
PART 1 - GENERAL

1.1 SUMMARY
A. This Section includes materials, labor, apparatus, tools, equipment, temporary construction, transportation, and services necessary for and incidental to performing the proper completion of Work, as required to make a complete and thorough preparation of the planting soil, including soil amendment products, imported topsoil, as required, to make up deficiencies in quantity of soil available on site, as shown in the Contract Drawings, and as specified herein this Section.

B. Work under this Section consists of, but is not necessarily limited to, furnishing and installing the following:

1. Agronomic Soil Fertility Testing and Soil Percolation Testing.

2. Topsoil.

3. Pre-Plant Weed Control.

4. Soil Conditioners, Amendments and Fertilizers (Organic & Chemical).

C. Related Sections: The following Sections contain requirements that relate to Work in this Section:

1. Section 312219 – Landscape Grading.

2. Section 328400 – Landscape Irrigation

3. Section 329200 – Lawns and Grasses.

4. Section 329300 – Exterior Plants.

5. Section 329400 – Landscape Planting Accessories.

6. Section 329813 – Landscape Establishment Period.

1.2 DEFINITIONS AND APPLICABLE STANDARDS
A. References:

1. USDA – United States Department of Agriculture.

2. ASTM – American Society for Testing & Materials.

B. Definitions:

1. Topsoil - Shall be friable soil, providing sufficient structure in order to give good tilth and aeration to the soil. Topsoil shall be free of roots, clods, stones larger than one-inch (1”) in the greatest dimension, pockets of coarse sand, noxious weeds, sticks, lumber, brush and other litter. It shall not be infested with nematodes or other undesireable diseasecausing organisms such as insects and plant pathogens.

2. Gradation Limits - Soil shall be a sandy loam, loam, clay loam or clay. The definition of soil texture shall be per the USDA classification scheme. Gravel over ¼-inch in diameter shall be less than 20% by weight.

3. Permeability Rate - Hydraulic conductivity rate shall be not less than one-inch (1”) per hour, nor more than twenty-inches (20”) per hour, when tested in accordance with the USDA Handbook Number 60, Method 34b, or other approved Methods.

4. Fertility - The range of the essential elemental concentration in soil shall be as follows:

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Ammonium Bicarbonate/
DTPA Extraction (PPM)
Element Concentration of
elements for
Soil Selection,
measured as
mg/kilogram dry
weight basis
Concentration of
Elements for
Final
Acceptance
(amended and
conditioned soil)
measured as
mg/kilogram dry
weight basis
Phosphorous 2 - 40 10 - 40
Potassium 40 - 220 100 - 220
Iron 2 - 35 24 - 35
Manganese 0.3 - 6 0.6 - 6
Zinc 0.6 - 8 1 - 8
Copper 0.1 - 5 0.3 – 5
Boron 0.2 - 1 0.2 – 1
Magnesium 50 - 150 50 – 150
Sodium 0 - 100 0 – 100
Sulfur 25 - 500 25 – 500
Molybdenum 0.1 – 2 0.1 - 2

5. Acidity - The soil pH range measured in the saturation extract (Method 21a, USDA Handbook Number 60) shall be 6.0 – 7.9.

6. Salinity - The salinity range measured in the saturation extract (Method 3a, USDA Hand Number 60) shall be 0.5 – 2.0 dS/m. If calcium and if sulfate ions both exceed 20 milliequivalents per liter in the saturation extract, the maximum salinity shall be 4.0 dS/m.

7. Chloride - The maximum concentration of soluble chloride in the saturation extract (Medoth3a, USDA Handbook Number 60) shall be 150 mg/1 (parts per million).

8. Boron - The maximum concentration of soluble boron in the saturation extract (Method 3a, USDA Handbook Number 60) shall be 1 mg/1 (parts per million).

9. Sodium Adsorption Ratio (SAR) - The maximum SAR shall be 3 measured per Method 20b, USDA Handbook Number 60.

10. Aluminum – Available aluminum measured with the Ammonium Bicarbonate/DTPA Extraction shall be less than 3.0 parts per million.

11. Soil Organic Matter Content - Sufficient soil organic matter shall be present to impart good physical soil properties but not be excessive to cause toxicity or cause excessive reduction in the volume of soil due to decomposition of organic matter. The desirable range is 3% to 5%. The carbon:nitrogen ratio should be about 10. A high carbon:nitrogen ratio can indicate the presence of hydrocarbons or non-humified organic matter.

12. Calcium Carbonate Content - Free calcium carbonate (limestone) shall not be present in acid-loving plants.

13. Heavy Metals - The maximum permissible elemental concentration in the soil shall not exceed the following concentrations:

Ammonium Bicarbonate/DTPA
Extraction (PPM)
Element (mg/kilogram)
dry weight basis

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Arsenic 1.0
Cadmium 1.0
Chromium 10.0
Cobalt 2.0
Lead 30.0
Mercury 1.0
Nickel 5.0
Selenium 3.0
Silver .5
Vanadium 3.0
a. If the soil pH is between 6 and 7, the maximum permissible elemental concentration shall be reduced 50% to the above values. If the soil pH is less than 6.0, the maximum permissible elemental concentration shall be reduced 75% of the above values. No more than three (3) metals shall be present at 50% or more of the above values.

14. Phytotoxic constituent, herbicides, hydrocarbons, etc. – Germination and growth of plants shall not be restricted more than 10% compared to the reference soil. Total petroleum hydrocarbons shall not exceed 50 mg/kg dry soil measured per the modified EPA Method No. 8015. Total aromatic volatile organic hydrocarbons (benzene, toluene, xylene and ethylbenzene) shall not exceed 0.5 mg/kg dry soil measured per EPA Method No. 8020.

15. Sub Grade - Soil level resulting from the rough grading work under another Section.

Cultivation of sub grade areas prior to placement of Topsoil is included in this Section.

16. Stockpiled Topsoil - Soil stockpiled for spreading over prepared sub-grade.

17. Stockpiled Native Topsoil - Topsoil stripped from the site prior to rough grading Work (under another Section), to be spread and amended as Work under this Section.

18. Imported Topsoil - Off-site Topsoil, imported and stockpiled under this Section, to be spread and amended as Work under this Section.

C. Measurements:

1. PPM: Measurement, in parts per million.

1.3 SUBMITTALS
A. General:

1. Collect information into a single Submittal for each element of construction and type of product or equipment identified under this Section for review.

2. To expedite review, Submittal shall be organized and presented into specific sections or headings. Furnish neat, concise, legible, and clearly identifiable information, and sufficiently explicit detail, to enable proper evaluation for Contract compliance. Highlight catalog, product data, or brochures containing various products, sizes, and materials to show particular item submitted.

3. Submittal Format: As applicable, furnish Submittal as a single electronic digital PDF (Portable Document Format) file.

B. Digital Submittal Information:

1. Product/Material Data. Submit available product/material literature supplied by manufacturer’s, indicating that their products comply with specified requirements. Provide manufacturing source (name, address, and telephone number), and distributor source (name, address, and telephone number) for each type of product/material.

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a. Planting Soil (Imported/Amended Topsoil).
b. Soil Amendments (for each type used, for Sand, Perlite, Peat Humus, Gypsum, Soil Sulfur, Iron, etc).
c. Bulk Composted Organic Soil Amendment Material.
d. Granular Soil Conditioning Material.
e. Mycorrhizal Inoculum.
f. Fertilizers (for each type used).

2. Agronomic Soil Fertility Analysis and Recommendations: Submit a minimum of fourteen (14) days prior to amending of the soil and ordering soil amendments. The locations of where each of the soil test samples were derived from the Project Site shall be keyed to the site plan and shall be included with the results.

3. Qualification Data: Submit names for firms and persons specified in the “Quality Assurance and Control” Article to demonstrate their capabilities and experience on similar installations.

4. Receipts and photo documentation (dated for the project) of all soil preparation products purchased and installed for are to be provided to Owner and Landscape Architect for record purposes.

C. Material Samples: Submit four (4) sets of physical Material Samples for review of kind, color, pattern, size, and texture for a check of these characteristics with other elements, and for a comparison of these characteristics between Submittal and actual component as delivered and installed. Include the full range of exposed color and texture expected in the completed Work.

Provide Material Samples bound and individually wrapped in re-sealable labeled 1-gallon plastic bags (as applicable):

1. Provide Material Sample sets for each item submitted under Product/Material Data.

D. Submittals under this Article will be rejected without the benefit of review by the Landscape Architect if they are difficult to read due to insufficient scale, poor image quality, or poor drafting quality; or if the required information is missing or not presented in the format as requested.

E. No Work shall proceed under this Section until Submittal requirements indicated herein have been reviewed accordingly by the Landscape Architect.

1.4 QUALITY ASSURANCE AND CONTROL
A. Installer Qualifications for requirements indicated herein this Section:

1. Licensed Landscape Contractor, C-27, in the State of California. a. Engage an experienced, licensed Contractor who has completed landscaping work similar in material, design, and extent to that indicated for this Project and with a record of successful landscape establishment.
b. Installer's Field Supervision: Contractor shall maintain an experienced, full-time landscape supervisor/superintendent at the Project Site during times that landscaping operations identified herein the Contract are in progress.

B. Manufacturer’s Directions: Follow Manufacturer’s directions and drawings in cases where the Manufacturers of articles used in this Section furnish directions covering points not shown in the Contract Drawings or Contract Specifications.

C. Permits, Fees, Bonds, Testing, and Inspections: Contractor shall arrange and pay for permits, fees, bonds, testing, and inspections necessary to perform and complete his portion of the Work.

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D. Approved Testing Laboratory and Procedures for Agronomic Soil Fertility Analyses:

1. Agronomic Soil Fertility Analyses shall be conducted by a reputable, certified, agronomic soils laboratory. Laboratory shall be a member of the Council on Soil Testing and Plant Analysis. The same laboratory shall be used throughout the duration of the Contract:
a. Wallace Laboratories, El Segundo, CA. 310-615-0116.
b. Soil and Plant Laboratory, Orange, CA. 714-282-8777. c. Fruit Growers Laboratory, Santa Paula, CA. 805-659-0910.

2. Contractor shall verify and confirm the selected Testing Laboratory and specific location(s) of soil sample(s) with the Landscape Architect prior to commencing soil sampling operations.

3. For each Soil type, submit the physical Soil Samples directly to the selected Laboratory for analysis, per the procedures outlined per Part III herein this Section. a. In addition to the physical Soil Samples, Contractor shall also provide the Laboratory with a copy of the Soil Amendment and Fertilizer products indicated herein this Section.

4. Along with the testing data results, the Agronomic Soil Fertility Analysis shall also include written recommendations authored by the Laboratory conducting the Analyses for amending, treating, and/or correcting the sampled soils. Laboratory shall utilize the organic-based Soil Amendments and Fertilizers described herein this Section to the greatest extent possible to produce satisfactory planting soil(s) suitable for sustaining healthy viable plant growth.
a. The Analyses shall also include Maintenance and Post-Maintenance fertilization programs for planted areas within the Contract.

5. Agronomic Soil Fertility Analyses shall be performed on each Soil Type samples, and include testing results for the following:
pH;
Electro-conductivity (salinity) measurement – saturated extract.

Measurement of sodicity (Sodium Absorption Ratio);
Estimate of soil texture and soil organic matter;
Presence of lime;
Nutrients/Toxic Elements measurement of DPTA extract
Saturation extracts for nitrate, sulfate, sodium, calcium, magnesium, potassium, soluble phosphate, and boron; Parasitic nematodes;
Herbicide contamination;
(For Lightweight Soil Mixes): Test for physical and chemical composition, and saturated weight per cu.ft.

6. Planting operations shall not commence until the results of the Agronomic Soil Fertility Analysis and Recommendations are reviewed accordingly by the Landscape Architect.

7. The quantity or type of amendments may be modified by the Landscape Architect within fourteen (14) days of receipt of the results. The Agronomic Soil Fertility Analysis and Recommendations shall take precedence over the amendment and fertilizer application rates specified herein or on the Contract Documents.

8. The Agronomic Soil Fertility Report/Recommendation shall take precedence over the amendment and fertilizer application rates specified herein or on the Contract Documents.

1.5 DELIVERY, STORAGE, AND HANDLING

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A. General: Deliver and install materials so as to not delay Work, and install only after preparations for installation have been completed.

1. Packaged Materials: Deliver packaged materials in original, unopened packages or containers, with manufacturer's labels intact and legible, showing weight, analysis, and name of manufacturer. Store and secure properly to prevent theft or damage. a. Store packaged materials off ground and under cover, away from damp surfaces and inclement weather.
b. Protect during storage and construction against soilage or contamination from earth and other materials.

2. Bulk Materials:
a. Deliver and store bulk materials so as not to impede Work of others. b. Do not dump or store bulk materials near structures, utilities, walkways and pavements, or on existing turf areas, or plants.
c. Protect during storage and construction against soilage or contamination from earth and other materials. Provide adequate separation between bulk materials so as not to cross-contaminate bulk materials.
d. Store under cover, away from inclement weather.
e. Provide erosion-control measures to prevent erosion or displacement of bulk materials, discharge of soil-bearing water run-off, and airborne dust reaching adjacent properties, water conveyance systems, structures, or walkways. f. Accompany each delivery of bulk materials (fertilizers, amendments, topsoil, etc.) with appropriate certificates. Furnish original certificates to Landscape Architect upon request.

1.6 COORDINATION, SCHEDULING, AND OBSERVATIONS
A. Notify the Contractors performing Work related to installation of Work under this Section in ample time so as to allow sufficient time for them to perform their portion of Work and that progress of Work is not delayed. Verify conditions at the Project Site for Work that affects installation under this Section. Coordinate items of other trades to be furnished and set in place.

B. Utilities: Determine location of above grade and underground utilities and perform Work in a manner which will avoid damage to utilities. Hand excavate, as required. Maintain grade stakes until removal is mutually agreed upon by parties concerned.

C. Excavation: When conditions detrimental to adequate Soil Preparation operations are encountered, such as rubble fill, adverse drainage conditions, or obstructions, cease operations and notify Landscape Architect for further direction.

D. Installation: Perform Soil Preparation operations only when weather and soil conditions are suitable in accordance with locally accepted practices.

E. Construction Site Observations: Periodic site observations shall be made by the Landscape Architect during the installation of Work under this Section for compliance with requirements for type, size, and quality. Landscape Architect retains right to observe Work for defects and to reject unsatisfactory or defective material at any time during progress of Work. Contractor shall remove rejected materials immediately from Project site. The Contractor shall request, in writing, at least one (1) week in advance of the time when mandatory site observation(s) by the Landscape Architect are required.

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1.7 SITE CONDITIONS
A. Project Site shall be free of weeds, native grasses, evasive grasses, (Bermuda Grass, Nut Grass, Kikiyu Grass, etc.) prior to Topsoil distribution or soil amendment placement.

B. Excessive rock, dead or declining vegetation, trash, debris, or other items that has accumulated throughout the duration of the Project shall be removed from the Project Site by the Contractor, and as directed by the Landscape Architect.

C. Grading and soil preparation Work shall be performed only during the period when beneficial and optimum horticultural results may be obtained. If the moisture content of the soil should reach such a level that working it would destroy soil structure or cause compaction, spreading and grading operations shall be suspended until, in the opinion of the Landscape Architect, the moisture content is increased or reduced to acceptable levels and the desired results are likely to be obtained.

1. Soil moisture level prior to planting shall be no less than 75% of field capacity. The determination of adequate soil moisture for planting shall be in the sole judgment of the Landscape Architect.

2. If the soil moisture level is found to be insufficient for planting, planting pits shall be filled with water and allowed to drain before commencing planting operations.

D. Planting areas which become compacted in excess of 85% relative compaction due to construction activities shall be tilled and thoroughly cross-ripped to a minimum depth of twelve-inches (12”) to alleviate the condition, taking care to avoid all existing subsurface utilities, drainage, etc.

1.8 SUBSTITUTIONS
A. Consideration: Materials to be considered equal to the Materials indicated herein this Section shall be reviewed by the Landscape Architect. Materials with equal performance characteristics produced by other Manufacturer’s and/or Distributors may be considered, providing deviations in dimensional size, color, composition, operation, and/or other characteristics do not change the design concept, aesthetic appearance, nor intended performance, as solely judged by the Landscape Architect. The burden of proof on product equality is on the Contractor.

B. Specific reference to Manufacturer’s names and products specified herein are used as standards of quality. This implies no right to the Contractor to substitute other materials without prior written approval by the Landscape Architect for Work under this Section.

C. Materials substituted and installed by the Contractor, without prior written approval by the Landscape Architect, may be rejected. Contractor shall not be entitled to be compensated by the Owner where the Contractor has installed rejected substitutions without receiving prior written approval.

D. Contract Price: Substituted Materials under this Section shall not increase the Contract price.

PART 2 - PRODUCTS

2.1 SOIL MIXES/BLENDS

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A. Soil Conditioner Blend, for amending on-site native soil planting surfaces, stockpiled, plant back fill or imported topsoil: Furnish a thoroughly blended composition of Bulk Composted Organic Soil Amendment Material and Granular Soil Conditioning Material & Fertilizer. Any substitution for the “Soil Conditioner Blend” listed herein must be requested by the Contractor and approved, in writing, by the Landscape Architect at least thirty (30) days prior to installation.

1. Bulk Composted Organic Soil Amendment Material:
a. Material Composition: Bulk Composted Organic Soil Amendment Material shall be thoroughly cured for a minimum of 100 days, and shall be free from any trash (glass, metal, plastic, etc.) deleterious materials, bio-solids, and/or toxic chemicals.

The Material shall be non-hazardous, and conform to US Environmental Protection Agency 40 CFR503 criteria for “Class A” products. It shall also exceed standards and specifications for unrestricted application as a landscaping and agricultural soil amendment.
b. Humus material shall have an acid-soluble ash content of no less than 6% and no more than 20%. The organic matter content shall be at least 50% on a dry weight basis.
c. Types of acceptable products are composts, manures, mushroom composts, straw, alfalfa, peat mosses etc. low in salts, low in heavy metals, free from weed seeds, free of pathogens and other deleterious materials.
d. Composted wood products are conditionally acceptable [stable humus must be present]. Wood based products are not acceptable which are based on red wood or cedar.
e. Sludge-based materials are not acceptable.
1) Gradation/Screen Analysis: A minimum of 90% of the material by weight shall pass a ½” screen. Material passing the screen shall meet the following criteria:

Percent Passing Sieve Designation
80 - 100% 6.35 mm (1/4”)
50 – 80% 2.38 mm (No. 8)
0 – 40% 500 micron (No.
35)
2) Maturity: Physical characteristics suggestive of maturity include shall include:
a) Color: Dark brown to black.
b) Odor: Aerobic, without malodorous presence of decomposition products.
c) Particle characterization: Identifiable wood pieces are acceptable but the balance of Material should be soil-like without recognizable grass or leaves.
f. Analytical Properties: Contractor shall submit proof of the Bulk Composted Organic Soil Amendment Material by providing a sample as identified herein this Section, and a lab analysis that has been performed within 30 days of the installation of the planting. Soil mix shall have (at a minimum) the following properties:

Material Minimum Targeted Property/Range
Total Nitrogen (N%) .50-1.0%
Phosphorus (as P2O5) 2.0%

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Potassium (as K2O) 0.2%
pH (units) 6.0 to 7.5, as determined in saturated
paste.

Organic Content Minimum 50% based on dry weight and
determined by ash method. Minimum
205 lbs. organic matter per cubic yard of
compost.

ECe (millimho/cm) <5.0; based on pre-leaching with equal volume of water.

Carbon-to-Nitrogen Ratio <25-to-1, nitrogen stabilized.

Bulk Density 1,000 to 1,100 pounds/cubic yard.

Sodium Absorption Ratio
(SAR)
Under 20.0
Total Iron 1.5%3.

Moisture Content 35%-60%
Acid-soluble Ash content No less than 6% and no greater than 20%.

Salt Content <10millimho/cm @ 25d C. on a saturated
paste extract.

Boron Content <1.0 parts per million on a saturated paste extract.

Silicon-Content (acidinsoluble ash)<50%
Calcium Carbonate No presence on alkaline soils.

Maximum Total
Permissible Pollutant
Concentrations Parts per
million (mg/kg dryweight basis)
• Arsenic: 1.0
• Cadmium: 1.0
• Chromium: 10.0
• Cobalt: 2.0
• Copper: 1.0
• Lead: 30.0
• Mercury: 1.0
• Molybdenum: 2.0
• Nickel: 5.0
• Selenium: 1.0
• Silver: 0.5
• Vanadium: 3.0
• Zinc: 2.0
g. Application Rate: As indicated herein this Section under “Planting Soil Amendments Schedule”.
h. Commercial-Grade Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
1) Soil Conditioner, Synagro Professional Organic Soil Products. 2) Agromend, Agromin Horticultural Products.
3) Humic Compost ½”, Greenway Compost.
4) Superior Blend Compost, Artesia Sawdust Products, Inc. 5) Compost, EarthWorks Soil Amendments, Inc.
6) Contractor’s Blend, Recycled Wood Products (RWP).
7) #SSA-CST Supreme Organic Soil Amendment, Plants Choice, Inc. 8) Humic Compost 3/8”, Agri Service, Inc.

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9) Or equal, as approved by the Landscape Architect.

2. Granular Soil Conditioning Material & Fertilizer:
a. Material Composition and Analytical Properties: Granular Soil Conditioning Material & Fertilizer shall be a singular manufacturer-blended combination of soil conditioning material and fertilizer. It shall be granular in form, long-lasting, free flowing, and suitable for application with approved equipment. It shall not contain any sewage sludge or manure-based products, and shall contain the following guaranteed minimum available analysis range:

Element/Material Targeted Property Range
Nitrogen (N) 5.0% to 6.0%
Phosphoric Acid (as P2O5) 2.0% to 3.0%
Potash (as K2O) 1.0% to 4.0%
Humic Acids 15.0 % to 20.0%
Calcium 7.0%
Sulfur 0.0% to 5.0%
b. Commercial-Grade Products, Manufacturers and Associated Rates of Application:

Subject to compliance with requirements, provide products by one (1) of the following:
1) Tri-C 6-2-4, Tri-C Enterprises LLC, Chino, CA. 800-927-3311. a) Application Rate at 70 lbs. per 1,000 square feet of planting area. 2) Gro-Power Plus 5-3-1, Gro-Power, Chino, CA. 909-393-3744. a) Application Rate at 200 lbs. per 1,000 square feet of planting area. 3) or equal, as approved by the Landscape Architect.

2.2 ORGANIC SOIL AMENDMENT COMPONENTS
A. Peat Humus:

1. Type: Canadian Sphagnum Peat, as derived from the genus Sphagnum, medium-divided, coarse fibrous texture, brown in color.

2. Measurement: Measure peat in air dry condition, containing not more than 35% moisture by weight on an "as-received" basis.

3. Physical Properties:

Percent Passing Sieve Size
95 - 100% 9.51 mm (3/8 in.)
0 - 40% 500 micron (#35, 32
mesh)

4. Organic Content (dry weight basis): Minimum 95%.

5. Fiber Content: Greater than 66%.

6. Water Holding Capacity: 20x to 30x its dry weight in water.

7. Range in Ash Content (%): 1.0 to 5.0.

8. Chemical Properties:
a. Nitrogen (dry weight basis): 0.6-3.0%.

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b. Salinity/Soluble Salts: Saturation extract conductivity 0.0-3.0 millimhos/cm @ 25 degrees C.
c. pH range: 3.0 to 4.0.

9. Unacceptable Materials:
a. Coir Dust.
b. Sedge Peat.
c. Reed Peat.
d. Hypnum Peat.

B. Mycorrhizal Inoculum:

1. Mycorrhizal Inoculum for Plant Material (not Palm Trees): Dual soil-conditioning biological inoculum system of endo-and ecto- Mycorrhizal, used to further aid the plants ability to efficiently uptake available soil nutrients and increase resistance to drought. a. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
1) 4-gram Myco-Pak, Tri-C Enterprises LLC, Chino, CA, 800-927-3311. 2) 4 oz. Packet - Roots 1 Step, Roots, Inc., Independence, MO, 800-342-6173. 3) Or equal, as approved by the Landscape Architect.
b. Provide at the prescribed application rate, per the Manufacturer’s written recommendations.

2.3 CHEMICAL SOIL AMENDMENT COMPONENTS
A. General: Chemical Soil Amendment Components listed herein may or may not be used, depending on the results of the Agronomic Soil Fertility Report. Provide as required:

B. Gypsum: Commercially-processed and packaged agricultural-grade hydrated calcium sulfate product (CaSO4), 92.0% minimum, pH at 7.1.

1. Commercial-Grade Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Ben Franklin® No. 1 Agricultural Gypsum, U.S. Gypsum Company. b. 100% Good Stuff Gypsum™, Art Wilson Company.
c. CAL-SUL® Pelletized Agricultural Gypsum, North Pacific Group. d. Bumper Harvest Agricultural Gypsum, Domtar Gypsum.
e. Premium 97 Solution-Grade Gypsum, Diamond K, Inc.
f. Or equal, as approved by the Landscape Architect.

C. Soil Sulfur: Elemental Sulfur (90% min.) commercially manufactured, water degradable, palletized.

1. Commercial-Grade Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Disper-Sul, Martin Resources, Inc.
b. Soil Sulfur, Red Top.
c. Or equal, as approved by the Landscape Architect.

D. Iron: Non-staining, 40% Fe minimum, complete with micro-nutrients and 2% humic acids, as derived from iron oxide, manganese oxide, or zinc oxide.

1. Commercial-Grade Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Gro-Power Iron, Gro-Power, Chino, CA.

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b. Iron 45 w/ Micronutrients, Tri-C Enterprises LLC, Chino, CA. c. Or equal, as approved by the Landscape Architect.

E. Dolomite Lime: Agricultural-grade mineral soil conditioner containing 35% minimum magnesium carbonate, and 49% minimum calcium carbonate, 100% passing #65 sieve.

F. Potassium Sulfate (Sulfate of Potash K2O), (0-0-50 guaranteed analysis N-P2O5-K2O):

Agricultural-grade, containing minimum 50% of water-soluble potash and 18% Sulfur (S).

G. Single Superphosphate P2O5 (0-15-0 guaranteed analysis N-P2O5-K2O): Commercial product, containing 15% available phosphoric acid and 14% Sulfur.

H. Triple Superphosphate P2O5, (0-45-0 guaranteed analysis N-P2O5-K2O): Commercial product, containing 45% available phosphate and 15% Calcium (Ca).

I. Ammonium Sulfate (NH4)2SO4, (21-0-0 guaranteed analysis N-P2O5-K2O): Commercial product containing approximately 21% ammonia.

J. Ammonium Nitrate NH4NO3, (34-0-0 guaranteed analysis N-P2O5-K2O): Commercial product containing approximately 34% ammonia.

K. Calcium Nitrate CaNO3, (15.5-0-0 guaranteed analysis N-P2O5-K2O): Agricultural grade containing 15-1/2% nitrogen.

L. Potassium Nitrate KNO3, (13-0-45 guaranteed analysis N-P2O5-K2O): Commercial product containing approximately 13% nitrogen and 45% potassium.

M. Ureaformaldehyde (38-0-0 guaranteed analysis N-P2O5-K2O): Granular commercial product containing approximately 38% nitrogen.

N. Urea CO(NH2)2, (46-0-0 guaranteed analysis N-P2O5-K2O): Granular commercial product containing 46% nitrogen.

O. I.B.D.U. (Iso Butyldiene Diurea): Commercial product containing 31% nitrogen.

2.4 FERTILIZERS
A. Composition: Nitrogen (N), phosphorous (P2O5), and potassium (K2O) content, plus other elements, as indicated.

B. Palm Tree Fertilizer (pre-plant 9-3-9) <<<VERIFY>>>:

1. Organic-based, long-lasting, controlled-release, uniform in composition, free flowing, granular- type fertilizer with micronutrients, suitable for application with approved equipment.

2. Palm Fertilizer shall contain the following minimum available percentages by weight of plant food (pending results of soil analysis):

Element/Material Targeted Property
Range

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Nitrogen (N) - Slow
Release

9.0% minimum
Phosphoric acid (as
P2O5)

3.0% minimum
Potash (as K2O) 9.0% minimum
Calcium (Ca) 3.0% minimum
Magnesium (Mg) 4.0% minimum
Sulfur (S) 6.0% minimum
Iron (Fe) 2.0% minimum
Manganese (Mg) 0.05% minimum
Zinc (Z) 0.05% minimum
Humus 25.0% minimum
Humic Acids w/
micronutrients

5.0% minimum

3. Commercial-Grade Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Gro-Power 9-3-9 Palm & Tropical with Micronutrients, Gro-Power, Chino, CA. 909-393-3744.
b. Or equal, as approved by the Landscape Architect.

4. Application Rate: Per Manufacturer’s current printed recommendation.

C. Turf Grass Starter Fertilizer (pre-plant 3-12-12), as required

1. General: Shall be applied for turf grasses planted from sod or seed (not hydroseed or hydrostolons).

2. Fertilizer shall be an organic-based, long-lasting, controlled-release, uniform in composition, free flowing granular-type fertilizer with micronutrients, suitable for application with approved equipment. Fertilizer shall be high in potassium and phosphorous elements to aid in strong root development. a. Turf/Lawn Fertilizer shall contain the following minimum available percentages by weight of plant food (pending results of soil analysis):

Element/Material Targeted Property
Range
Nitrogen (N)
Slow Release

3.0% minimum
Phosphoric acid (as
P2O5)

12.0% minimum
Potash (as K2O) 12.0% minimum
Humus 35.0% minimum
Humic Acids w/ micronutrients and soil enhancers7.0% minimum

3. Commercial-Grade Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Gro-Power 3-12-12 Flower & Bloom, Gro-Power, Chino, CA. 909-393-3744. b. Or equal, as approved by the Landscape Architect.

4. Application Rate: Twenty (20) pounds per 1,000 SF.

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D. Fertilizer Tablet:

1. General: Fertilizer Tablet shall be a 7-gram tablet, organic-based, tightly compressed chiptype commercial grade, 12-month slow-release planting tablets, and shall be composed of the following available percentages by weight of plant food:

Element/Material Targeted Property
Range
Nitrogen (N) 12.0% minimum
Phosphoric acid (as
P2O5)

8.0% minimum
Potash (as K2O) 8.0% minimum
Humus 20.0% minimum
Humic Acids w/
micronutrients and soil
enhancers

4.0% minimum

2. Commercial-Grade Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Gro-Power 12-8-8 Planting Tablets, Gro-Power, Chino, CA 909-393-3744. 1) Application Rate: As indicated herein Part III this Section. b. Or equal, as approved by the Landscape Architect.

2.5 ACCESSORIES
A. Wetting Agent/Water Storing Polymer: Non-biodegradable, granular, polyacrylamide polymer soil amendment.

1. Commercial-Grade Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Broadleaf P4, Broadleaf Industries, Inc. Chula Vista, CA (619)424-7880. b. Or equal, as approved by the Landscape Architect.

B. Perforated Drain Pipe & Drain Sock (Tree Chimney): Refer to Section 329400 – Landscape Planting Accessories.

C. Landscape Mulch Material:

1. Organic Wood Mulch: Refer to Section 329400 – Landscape Planting Accessories.

2. Landscape Mulch Material for Submersible Planting Pots: Refer to Section 329400 – Landscape Planting Accessories.

PART 3 - EXECUTION

3.1 AGRONOMIC SOIL FERTILITY REPORT/RECOMMENDATION
Once rough grading has been accomplished, and prior to commencing Soil Preparation operations, (amendments, fertilizers, etc.), soil samples shall be taken from representative areas and below grade depths of the Project Site. Locations and depths to gather the representative soil samples shall be accomplished by the Contractor under the direction of the Landscape Architect.

1. Provide 2 Soil Samples.

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B. Guidelines for Selecting the Soil Samples:

1. Select representative areas to sample. The area needs to be uniform in color, texture, depth, and drainage with the same fertilizing program and type of use. Planting areas to receive lawns, flowerbeds, trees, cut areas, fill areas, etc. should be tested separately. An area containing multiple trees and shrubs can be grouped into one area if the planting is the same.

2. Depths and process of soil sampling:
a. Sample as deep as the soil will be amended, generally six-inches (6”) deep for groundcover/lawns, eighteen-inches (18”) deep for shrub areas, twenty-four-inches (24”) deep for small boxed trees, and three-feet (3’) to four-feet (4’) for large boxed trees.
b. Use a soil probe or soil auger to remove a core sample; otherwise, use a shovel to dig a hole to the desired depth. Sample the soil from the side of the excavated hole, scraping the side with a trowel. The tools used for digging shall be clean and not rusty. Avoid sampling when the soil is too wet.

3. In desired areas where multiple sub-samplings are taken from any one (1) area to create a combined sample, mix the sub-samples homogenously together in a clean plastic bucket prior to placing in the plastic bag.

4. Each Sample shall be sent directly to the laboratory in a separate, re-sealable, one (1)- gallon plastic bag. Provide a minimum of four (4) cups of soil within each respective sample to allow for adequate testing.

3.2 SOIL PERCOLATION TESTING
A. Type/Quantity: During operations of Agronomic Soil Fertility Testing and prior to installing Plant Material, Contractor shall perform Soil Percolation Tests, through the direction of the Landscape Architect, in selected representative areas of the Project Site, to verify acceptable natural drainage, soil structure, and soil composition. Contractor shall verify the locations of the Soil Percolation Tests with the Landscape Architect.

1. Required Number of Soil Percolation Tests: 1
B. Procedure: Each Soil Percolation Test shall be performed as follows:

1. Dig a hole: 2’-0” wide x 2’-0” long x 2’-0” deep.

2. Fill the hole with water to top and cover with plywood and barricade. Allow hole to drain and fill again to top.

3. Make daily observations, noting the depth of water each day.

4. Report findings, in writing, to the Landscape Architect. Include the length of time the water takes to drain completely from each hole, date of test, location, and other information, which may be useful in providing further recommendations.

C. Results: Based on the combined results of the Agronomic Soil Fertility Testing and the Soil Percolation Tests, Contractor may be required to install additional tree drainage sumps or other drainage methods at each planting pit for trees larger than 15-gallon container stock. This does not relieve the Contractor’s obligation within the Base Bid to provide the required Tree Root Aeration Units indicated in Section 329400 – Landscape Planting Accessories. Contractor shall include, as a line-item price within the Base Bid, the price per each additional tree drainage sump, should they be required (based on the testing). Should additional tree drainage sumps or other methods is required, compensation shall be awarded to the Contractor at the line-item price (each) as provided by the Contractor.

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3.3 SOIL MOISTURE CONTENT
A. General: Do not work soil when moisture content is so great that excessive compaction occurs, or when it is so dry that dust will form in air, or that clods will not break readily. Apply water, if necessary, to bring soil to an optimum moisture content for tilling and planting. Soil moisture level prior to planting shall be no less than 75% of field capacity. The determination of adequate soil moisture for planting shall be the judgment of the Landscape Architect. Range: Maintain within two-percent (2%) above or below optimum moisture content at times during Work.

3.4 SITE CONDITIONS
A. Contractor shall protect existing and new improvements and systems installed prior to planting installation. Maintain protection in place until completion of Work and contracted Landscape Establishment Period.

B. Protect concrete paving, headers, and drainage from staining due to contact with wet nitrogen stabilized mulch/sawdust, or contact with chelated iron. Correct any stained concrete.

3.5 CLEARING & CULTIVATION
A. Clearing: Clear planting areas free of stones two-inches (1”) in diameter and larger, weeds, debris, and other extraneous materials prior to soil preparation Work.

B. Pre-Plant Weed Control:

1. Clear and remove existing weeds by spraying and grubbing to at least one-inch (1”) below the soil surface.

2. Dead weeds shall be cleared and removed prior to planting.

3. Maintain a weed-free Project Site until final acceptance by the Owner, utilizing mechanical, chemical, or manual treatment.

C. Cultivation of Native Site Soil and/or Spreading Imported Topsoil, with Amendments/Fertilizers:

1. Verification: In planting areas where Imported Topsoil will be applied, verify that subgrades prior to installation of Imported Topsoil have been established under rough grading.

Do not spread Imported Topsoil prior to acceptance of sub-grade Work.

2. Cultivation: Following Pre-Plant Weed Control operations, rip or cultivate verified planting areas of Native Site Soil at the indicated depth, prior to applying Imported Topsoil (if required) and Soil Amendments/Fertilizers.
a. Depth of Cultivation: minimum Ten-inches (10”).

3. Following initial cultivation of existing Native Site Soil, evenly spread Imported Topsoil (if required) throughout all planting areas at the minimum indicated depth to meet finished landscape grades.
a. Depth of Imported Topsoil: Minimum six-inches (6”).

4. Once Imported Topsoil has been spread, uniformly broadcast all required Soil Amendments and Fertilizers indicated in Planting Soil Amendments Schedule (below) as amended through the results of the Agronomic Soil Fertility Report.

5. Thoroughly cultivate/blend all materials to provide a homogenous planting soil mixture at the indicated depth:
a. Depth of Cultivation: Minimum Ten-inches (10”).

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6. Tamp/compact prepared Planting Soil as required to eliminate settlement, and complete finish grading operations per Section 312219 – Landscape Grading.

7. Planting Soil Amendment Schedule:

Soil Amendment/Fertilizer Ratio
First Component of Soil
Conditioner Blend:

Bulk Composted Organic Soil
Amendment
Four (4) cu. yds. / 1,000 square feet of
planting area.

Second Component of Soil
Conditioner Blend:

Granular Soil Conditioning
Material & Fertilizer
At indicated ratio, per selected
Manufacturer.

Gypsum 200 pounds / 1,000 square feet.

Commercial Fertilizer At indicated ratio, per selected
Manufacturer.

Soil Sulfur 8 pounds / 1,000 square feet of planting
area.

Iron (non-staining) 10 pounds / 1,000 square feet of planting area.
a. Modifications: The Planting Soil Amendment Schedule may be modified, based on the combined results of the Agronomic Soil Fertility Tests and Percolation Tests. 1) Contractor shall be provided with fair and adequate compensation by the Owner should additions or increases to the specified ratios are required to the Planting Soil Amendment Schedule due to the Agronomic Soil Fertility Test results and/or recommendations by the Landscape Architect. 2) Contractor shall provide the Owner fair and adequate credit should subtractions or decreases to the specified ratios are required to the Planting Soil Amendment Schedule due to the Agronomic Soil Fertility Test results and/or recommendations by the Landscape Architect.

8. Complete finish grading operations per Section 312219 – Landscape Grading.

3.6 APPLICATION RATES

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A. Fertilizer Tablets shall be spread equidistantly around the perimeter within the Amended Planting Backfill Mixture, up to within three-inches (3”) of the finished grade of the Mixture, and at the following rates:

Size of Plant Material Total Quantity of 7-gram
Fertilizer Tablets
Liner, Plug, Flat-Size Plant, or 4” Pot. One (1) Tablet One (1)-gallon Container stock. Three (3) Tablets
Five (5)-gallon Container stock. Nine (9) Tablets
Fifteen (15)-gallon container stock Fifteen (15) Tablets 24” Box Container Stock Sixteen (16) Tablets
30” Box Container Stock Eighteen (18) Tablets
36” Box Container Stock Twenty (20) Tablets
42” Box Container Stock Twenty-two (22) Tablets
48” Box Container Stock Twenty-four (24) Tablets
60” Box Container Stock Thirty-six (36) Tablets
For Container Stock larger than 60”
Box.

Six (6) Tablets for each ½” of
tree caliper size.

For each 1’-0” of Palm Tree (apical
meristem) height. (Example: a 25’
Palm tree requires 50 tablets)
Two (2) Tablets.

1. Contractor shall not provide Fertilizer Tablets for designated native plant species, as indicated in the Contract Drawings or as directed by the Landscape Architect. Contractor shall verify with the Landscape Architect, in writing, as to which plants are subject to not receive the Fertilizer Tablets.

B. Mycorrhizal Inoculum Application Rate:

1. During application of Fertilizer/Planting Tablets, Mycorrhizal Inoculum shall be spread equidistantly around the perimeter within the Amended Planting Backfill Mixture, up to within three (3”) inches of the finished grade of the Mixture, at the prescribed application rate per the Manufacturer’s written recommendations.

3.7 DRAINAGE OF PLANTING AREAS
A. Surface Drainage:

1. Discrepancies: Provide proper surface drainage of planted areas. Submit in writing all discrepancies in the Contract Drawings or Specifications, or prior Work done by others, which Contractor feels precludes establishing proper drainage.

2. Correction: Include description of work required for correction or relief of said condition.

B. Detrimental Drainage, Soils and Obstructions:

1. Notification: Submit in writing all soils or drainage conditions considered detrimental to growth of plant materials. State condition and submit proposal and cost estimate for correcting condition.

2. Correction: Submit for acceptance a written proposal and cost estimate for the correction before proceeding with Work.

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329113 - 19

3. Obstructions: If rock, underground construction Work, tree roots, or other obstructions are encountered in the performance of Work under this Section, submit cost required to remove the obstructions to a depth of not less than six-inches (6”) below the required soil depth.

3.8 CLEAN UP AND PROTECTION
A. For Work under this Section, keep Work area in a clean, orderly, and safe condition. Contractor shall remove trash caused from his Work on a weekly basis throughout the duration of the Work.

B. Protect site from damage due to landscape operations, operations by other Contractors and trades, and trespassers. Maintain protection during installation and maintenance periods. Treat, repair, or replace damaged Soil Preparation areas as directed.

C. Upon completion of his Work under this Section, the Contractor shall remove rubbish, waste, debris, excess construction materials, and other items resulting from construction operations offsite as described herein this Section, as directed by the Landscape Architect.

END OF SECTION 329113 – SOIL PREPARATION

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SECTION 329200 – LAWNS & GRASSES
PART 1 - GENERAL

1.1 SUMMARY
A. This Section includes materials, labor, apparatus, tools, equipment, temporary construction, transportation, and services necessary for and incidental to performing the proper completion of Work, as required to make a complete Turf Grass (via sod) and Ornamental Groundcover (via hydroseed) planting installation, as shown on the Contract Drawings, and as specified herein this Section.

B. Work under this Section consists of, but is not necessarily limited to, furnishing and installing the following:

1. Sodded Turf Grasses.

2. Seeded Wildflower Mix (Hydroseeded).

C. Related Sections. The following Sections contain requirements that relate to Work in this Section:

1. Section 328400 – Landscape Irrigation.

2. Section 312219 – Landscape Grading.

3. Section 329113 – Soil Preparation.

4. Section 329300 – Exterior Plants.

5. Section 329400 – Landscape Planting Accessories.

6. Section 329813 – Landscape Establishment Period.

1.2 DEFINITIONS AND APPLICABLE STANDARDS
A. References:

1. ASPA – American Sod Producers Association.

2. AOSA – Association of Official Seed Analysts.

B. Definitions:

1. Plant Material(s): Refers to living plant species, inclusive of turf grass (via sown seed, stolons, and/or sod), ornamental grasses or groundcovers (via sown seed or sown plugs) for the Project.

2. Planting Area (PA): As denoted on the Contract Drawings, shall refer to areas to be installed with Plant Material(s), or areas where existing vegetation shall be protected.

3. Hydro-Mulching: Refers to the practice of sowing seeds (via hydro-seeding method) or stolons (via hydro-stolonizing method) together within a slurry mixture of water, fertilizer, cellulose (wood) fiber mulch, binder additive / soil and mulch tackifier, and other additives and materials, which is sprayed uniformly on a prepared soil surface through a pressurized distribution system.

C. Measurements:

1. SQ/FT: Measurement, in square-foot.

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1.3 SUBMITTALS
A. General:

1. Collect information into a single Submittal for each element of construction and type of product identified under this Section for review.

2. To expedite review, Submittal shall be organized and presented into specific sections or headings. Furnish neat, concise, legible, and clearly identifiable information, and sufficiently explicit detail, to enable proper evaluation for Contract compliance.

Highlight catalog, product data, or brochures containing various products, sizes, and materials to show particular item submitted.

3. Submittal Format: As applicable, furnish Submittal as a single electronic digital PDF (Portable Document Format) file.

B. Digital Submittal Information:

1. Product Data: Manufacturer's current catalog cuts and specifications for materials included herein this Section.

2. Certifications:
a. Certificates of inspection as required by law for transportation of each shipment of plant material as required.
1) Seed Certification: Certification of turf grass seeds from seed vendor for each turf grass-seed mixture, stating the botanical and common name and percentage by weight of each species and variety, and percentage of purity, germination, weed seed, and insert materials. Include the year of production and date of packaging if applicable. Seed mix certificate shall also include incorporated fertilizer and rate of application for hydro-mulching, as applicable.
2) Sod Certification: Certification of each seed mixture for sod, identifying sod source, including name and telephone number of supplier.

3. Hydro-mulching mixture(s), inclusive of plant material, fertilizer(s), inoculate, binder additive, fiber mulch, and water. Also provide the following information:
a. Number of required loads and amount of water.
b. Area to be covered (in acres).
c. Equipment to be used and capacity of equipment.
d. Hydro-mulching subcontractor’s company name, location, and license number.

4. Qualification Data, for firms and persons specified in the "Quality Assurance and Control" Article to demonstrate their capabilities and experience. Include lists of completed projects with project names and addresses, names and address of architects and owners, and other information specified.

5. Meeting Notes from Pre-installation Conference.

C. Submittals under this Article will be rejected and returned without the benefit of review by the Landscape Architect if they are difficult to read due to insufficient scale, poor image quality, or poor drafting quality; or if the required information is missing or not presented in the format as requested.

D. No Work shall proceed under this Section until Submittal requirements indicated herein have been reviewed accordingly by the Landscape Architect.

1.4 QUALITY ASSURANCE & CONTROL

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A. Installer Qualifications:

1. Requirement: Valid California C-27 (Landscaping Contractor) License.

2. For Contractor or Sub-Contractor installing hydro-mulching materials: Valid California C-61 (Limited Specialty Contractor, Classification D-59 Hydroseed Spraying) License.

3. Installer's Field Supervision: Installer to maintain an experienced full-time supervisor on the Project site during times that installations under this Section are in progress.

B. Plant Material Quality:

1. Refer to requirements under Part 2 herein this Section.

C. Observation: Landscape Architect may observe installation Work herein this Section at Project Site for compliance with requirements for type, size, and quality. Landscape Architect retains right to observe installation of products for defects and to reject unsatisfactory or defective material or installation at any time during progress of Work. Contractor shall remove rejected Work immediately from Project site.

1.5 DELIVERY, STORAGE, AND HANDLING
A. Seed:

1. Delivery: Furnish standard Seed in unopened and undamaged Manufacturer's standard containers bearing original certification labels showing quantity, analysis and name of Manufacturer.

2. Storage: Protect Seed from weather or other conditions that would damage or impair the effectiveness of the product.

B. Sod:

1. Harvest and Delivery: Harvest Sod from the source and deliver to Project Site within 24 hours. Deliver only as much Sod as can be installed in one (1) day's work. Carefully handle Sod accordingly to the requirements of the ASPA’s “Specifications for Turfgrass, Sod Materials, and Transplanting/Installing”.

2. Review: Sod not transplanted within this time period shall be reviewed by the Landscape Architect prior to installation.

C. Cellulose (Wood) Fiber Mulch:

1. Labeling: Each package of Cellulose (Wood) Fiber Mulch shall be marked by the Manufacturer to show the air dry weight content.

2. Storage: Protect from weather or other conditions that would damage or impair the effectiveness of the product.

D. Binder Additive / Soil and Mulch Tackifier:

1. Labeling: Each package of Binder Additive / Soil and Mulch Tackifier shall be marked by the Manufacturer to show the air dry weight content.

2. Storage: Protect from weather or other conditions that would damage or impair the effectiveness of the product.

E. Hydro-Mulching Slow-Release Fertilizer:

1. Delivery: Furnish material in unopened and undamaged Manufacturer's standard containers bearing original certification labels showing quantity, analysis and name of Manufacturer.

LAWNS & GRASSES
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2. Storage: Protect material from weather or other conditions that would damage or impair the effectiveness of the product.

F. Granular Soil Conditioning Material & Fertilizer:

1. Delivery: Furnish material in unopened and undamaged Manufacturer's standard containers bearing original certification labels showing quantity, analysis and name of Manufacturer.

2. Storage: Protect material from weather or other conditions that would damage or impair the effectiveness of the product.

G. Mycorrhizal Inoculum for Hydro-Mulch-type Applications:

1. Delivery: Furnish material in unopened and undamaged Manufacturer's standard containers bearing original certification labels showing quantity, analysis and name of Manufacturer.

2. Storage: Protect material from weather or other conditions that would damage or impair the effectiveness of the product.

1.6 PROJECT SITE CONDITIONS
A. General Requirements: Installation under this Section shall be performed only during the time of day and during seasons when satisfactory results can be expected, unless authorized by the Landscape Architect.

1. Seeds: Install immediately after finish grading and irrigation installation are accepted.

2. Sod: Install immediately after finish grading and irrigation installation are accepted.

B. Climate Restrictions: Do not install Plant Materials under this Section during rainy or inclement weather.

C. Hydro-Mulching Operations:

1. Irrigated Areas: Commence Work within fourteen (14) calendar days after the completion and acceptance of Soil Preparation (per Section 329113 – Soil Preparation.) in planting areas.

2. Un-irrigated Areas: Commence work only between October 1st through February 28th, or as directed by the Landscape Architect. Should Contractor commences installation outside of this time frame, Contractor is responsible to provide temporary irrigation, as required, to un-irrigated areas to insure proper germination and growth establishment of the hydro-mulching materials to satisfy an minimum of 95% coverage of the hydromulched areas to satisfy Final Acceptance requirements.

1.7 SUBSTITUTIONS
A. Consideration: Materials to be considered equal to the Materials indicated herein this Section shall be reviewed by the Landscape Architect. Materials with equal performance characteristics produced by other Manufacturer’s and/or Distributors may be considered, providing deviations in dimensional size, color, composition, operation, and/or other characteristics do not change the design concept, aesthetic appearance, nor intended performance, as solely judged by the Landscape Architect. The burden of proof on product equality is on the Contractor.

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B. Specific reference to Manufacturer’s names and products specified herein are used as standards of quality. This implies no right to the Contractor to substitute other materials without prior written approval by the Landscape Architect for Work under this Section.

C. Materials substituted and installed by the Contractor, without prior written approval by the Landscape Architect, may be rejected. Contractor shall not be entitled to be compensated by the Owner where the Contractor has installed rejected substitutions without receiving prior written approval.

D. Contract Price: Substituted Materials under this Section shall not increase the Contract price.

1.8 WARRANTY
A. Time Period: Warrant Plant Materials under this Section are established and in a healthy and flourishing condition of active growth six (6) months from date of Final Acceptance.

B. Appearance During Warranty:

1. Turf Grass areas shall be free of dead or dying patches, and shall show foliage of a normal density, size and color.

2. Wildflower areas shall be free of dead or dying patches, and shall show foliage of a normal density, size and color.

C. Delays: Delays caused by the Contractor in completing planting operations under this Section which extend the planting into more than one (1) planting season shall extend the Warranty Period correspondingly.

D. Coverage: Warrant growth and coverage of installations under this Section to the effect that a minimum of 95% of the area planted shall be covered and of acceptable appearance with the specified planting after one (1) growing season, with no bare spots.

1. Exceptions: Contractor shall not be held responsible for failures due to neglect by Owner, vandalism, or natural disaster during Warranty Period. Report such conditions in writing.

1.9 FINAL ACCEPTANCE AND LANDSCAPE ESTABLISHMENT PERIOD A. Refer to Section 329813 – Landscape Establishment Period.

PART 2 - PRODUCTS

2.1 TURF GRASS MATERIALS
A. General:

1. Provide sodded installation of Turf Grass areas as designated on the Contract Drawings.

B. Turf Grass Sod Material:

1. Provide certified Turf Grass Sod complying with ASPA’s Specifications for thickness, size, strength, moisture content, and mowed height. Provide Sod of grass species and

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varieties selected, proportioned by weight, and minimum percentages of purity, germination, and maximum percentage of weed seed.

2. Sod shall consist of live, growing, mature nursery-grown field stock, and shall arrive with a lush appearance, uniform texture, and a deep green color typical of the selected turf grass species.

3. Sod shall be machine-cut from the nursery field with a minimum of one-half inch (1/2”) of soil that completely covers the roots of the Sod. Sod shall contain a healthy, virile root system of dense, strong, thickly matted roots throughout, with no dead or dry edges, and capable of vigorous growth and development when planted. Sod shall be sufficiently dense to bear handling and placement without tearing.

4. Sod shall be free of thatch, diseases, and harmful insects, and reasonably free from noxious or broadleaf weeds or other grasses, and shall not contain any other matter deleterious to its growth or which might affect its subsistence or hardiness when transplanted.
a. Sod shall be considered “weed free” if no more than ten (10) weeds are found per 100 SF of Sod.
b. Entire lot of Sod shall be rejected if found to contain the following weeds:
common Bermuda grass, quackgrass, nutgrass, johnsongrass, poison ivy, nimbleweed, thistle, bindweed, bentgrass, perennial sorrel, or bromegrass.

5. Turf Grass Sod Species:
a. Type: Sea Spray Seashore Paspalum (a blended hybrid Paspalum grass mixture), high salt and drought tolerance, good for reclaimed or gray water applications), dark green, medium-fine textured. High activity levels, reel mower at 1/4” to 1- 1/2”.
b. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
1) West Coast Turf, 800-447-1840.
2) Or equal (no known equal).

2.2 SLOPE STABILIZATION GROUNDCOVER PLANTING (via Hydro-mulching Applications) A. Hydro-mulching Applications of Slope Stabilization Planting

1. Seed: Fresh, clean, dry, certified, new-crop Seed, complying with the AOSA’a "Rules for Testing Seeds" for purity and germination tolerances. Provide seed of species and varieties, proportions by weight, and minimum percentages of purity, germination, and maximum percentage of weed seed. Comply with the following:
a. Testing: Seed shall have been tested for purity and germination not more than 12 months prior to the application of the seed. The test results from seed testing shall be delivered to the Landscape Architect prior to applying the seed. Seed labels furnished by the seed vendors supplying the seed shall indicate the purity, germination and pure live seed as determined by testing. Seed with a germination rate lower than the minimum rate specified may be used when approved by the Landscape Architect, in writing.
b. Labeling: Seed required to be labeled under the California Food and Agricultural Code, shall be labeled by the vendors supplying the seed. Contractor shall furnish written evidence (seed label or letter) to the Landscape Architect that seed, not required to be labeled under the California Food and Agricultural Code, has been tested for purity and germination by a seed laboratory certified by the Association

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of Official Seed Analysts, or a seed technologist certified by the Society of Commercial Seed Technologists.
c. Percentage of Seed Germination: The percentage of seed germination shall include the germination percentage of any hard and dormant seed. Seed specified without a germination requirement, at the time of sowing, shall be from the previous or current year's harvest, and shall be labeled to include the name date (month and year) collected and the name and address of the seed supplier. d. All shipments of seed not accompanied by a valid California Nursery Stock Certificate shall be reported to the County Agricultural Commissioner at the point of destination for inspection and shall be held until released by the Commissioner. e. Seed treated with mercury compounds shall not be used. f. Legume seed shall be pellet-inoculated with a viable bacteria compatible for use with that species of seed. All inoculated seed shall be labeled to show the mass of seed, the date of inoculation, and the mass and source of inoculant materials.

2. Slope Stabilization Seed - Mix “Coastal Ornamental Low Grow Native Seed Mix” (Weed Seed shall not exceed >15%.)
Botanical Name/
Common Name
Percentage by Weight
(in Pounds/acre)
Acmispon heermannii/
Hermann’s Lotus

4.00 Agrostis pallens/
Bentgrass

8.00 Achillea millefolium/
Yarrow

1.00 Muhlenberia microsperma/
Littleseed Muhly

4.00 Melica imperfecta/
Coastal Melic

4.00 2.3 HYDROMULCHING MATERIALS (HYDROSEEDING/HYDROSTOLONIZING) A. Seed Mix:

1. Fresh, clean, dry, new-crop seed complying with AOSA's "Journal of Seed Technology; Rules for Testing Seeds" for purity and germination tolerances.

2. Contractor shall furnish certification showing origin of all seed and Pure Live Seed (PLS) purity (times (x)) percent germination. Each bag of seed shall be tagged and sealed by the producer in accordance with the U.S. Department of Agriculture’s rules and regulation under the Federal Seed Act and applicable State seed laws or other local certification authority within the state of origin. The label shall indicate analysis of seed and date of analysis. Seed may be premixed by the seed dealer and appropriate data indicated on the bag label for each variety.

3. State-certified seed of species as specified.

4. Seed shall be domestic grown and shall be furnished in sealed standard containers, each of which carries the analysis label.

5. Seed which has become wet, moldy, musty or otherwise damaged will not be acceptable.

6. Seed Mix Rate is given in pounds of Pure Live Seed (PLS) per acre. Refer to Contract Drawings for Seed Mix species.
a. Minimum Purity: 95%.
b. Minimum Germination: 90%.

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B. Wood Fiber Mulch, pre-blended with Organic Binder Additive / Soil & Mulch Tackifier:

1. Composition: Wood Fiber Mulch shall be composed of 100% virgin thermally-refined wood fiber, dark-green-colored, sterilized to contain no germination or growth inhibiting factors. It shall be consistent in texture, which disburses evenly and remains suspended in agitated water. Mulch shall be pre-blended by the Manufacturer with a high-viscosity, non-toxic, hydro-colloid guar gum-based Soil & Mulch Tackifier, minimum 3%.

2. Unacceptable Materials: Paper (Cellulose) Fiber Mulch, or a blended Wood Fiber/Paper (Cellulose) Fiber Mulch, shall not be used.

3. Weight: Weight specification of Wood Fiber Mulch refers only to air dry weight of the fiber material. Absolute air dry weight is considered equivalent to 10% moisture.

4. Dispersion in Slurry: Wood Fiber Mulch shall be manufactured in such manner that after addition to and agitation in slurry tanks with fertilizer, seed, water and other approved additives, fibers in the material will become uniformly suspended to form a homogeneous slurry.

5. Absorption Capacity: When hydraulically sprayed on the ground, the Wood Fiber Mulch material will form a blotter-like groundcover impregnated uniformly with seed, which will allow the absorption of moisture and allow rainfall to percolate to the underlying soil.

6. Property Analysis (meet the following minimum requirements):
a. Moisture Content (9%-12% +/- 3%, Wet Weight Basis).
b. Organic Matter (96%, +/- 2%, Oven Dry Weight Basis). c. Ash Content (.7%, +/- 0.2%, Oven Dry Weight Basis).
d. Wood Fiber: 97%.
e. pH (4.5-4.8, +/- 0.5).
f. Moisture Holding Capacity (grams of water/100 grams oven dry fiber): Minimum 1150 grams of fiber.

7. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:

Product, and
Manufacturer
Binder Additive /
Tackifier
Application Rate @
lb/Ac
Cowed Fibers® 2000,
Profile Products, LLC.

Pre-blended in product as
provided by
Manufacturer.
<2:1 Slopes to
1:1 Slopes.
</= 3:1 Slopes to
</= 2:1 Slopes
Moderate to 3:1
Slopes
2500
2000
1500
EarthGuard® Wood
Fiber Mulch plus
Tackifier, Terro Novo,
Inc.

Pre-blended in product as
provided by
Manufacturer.
<2:1 Slopes to
1:1 Slopes.
</= 3:1 Slopes to
</= 2:1 Slopes
Moderate to 3:1
Slopes
2500
2000
1500
EcoFibre® Tac
Mulch, Canfor
Corporation.

Pre-blended in product as
provided by
Manufacturer.
<2:1 Slopes to
1:1 Slopes.
</= 3:1 Slopes to
2500
2000

LAWNS & GRASSES
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</= 2:1 Slopes
Moderate to 3:1
Slopes
1500
Mat-Fiber Plus®, Mat,
Inc.

Pre-blended in product as
provided by
Manufacturer.
<2:1 Slopes to
1:1 Slopes.
</= 3:1 Slopes to
</= 2:1 Slopes
Moderate to 3:1
Slopes
2500
2000
1500
C. Soil Stabilizing Emulsion Blend Additive:

1. Water permeable, soil stabilizing liquid Blend Additive, developed as a true emulsion consisting of two (2) completely immiscible liquids, in which minute globules of one (1) liquid are dispersed but not dissolved throughout the other liquid. Blend Additive shall be non-toxic to plant and animal life, and must be registered and licensed by the State of California, Department of Food and Agriculture, as an “auxiliary soil amendment.”

2. Soil Stabilizing Emulsion Blend Additive shall consist of at least (3) three different linear anionic copolymers of acrylamide/sodium acrylate in water-in-oil emulsions, lending distinct molecular weights greater than 12x106and anionic mole percentages (charge density) greater than 25%, within one emulsion. Blend Additive must be guaranteed to contain 30% (+/- 1%) active polymer, in which all of the active particles are ultra-fine in size. Blend Additive shall also be guaranteed to have 100 ppm or less of residual acrylamide.

3. Soil Stabilizing Emulsion Blend shall hydrate and disperse in a mixing tank with circulating water forming a homogenous slurry, either alone or in combination with other materials, and shall be pH stable in the presence of fertilizer.

4. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. EarthGuard SFM Soil Stabilizing Emulsion, Terra Novo, Inc. b. Or equal (no known equal).

D. Hydromulching Slow-Release Fertilizer:

1. Pelleted- or granular-form fertilizer, organic-based, long-lasting, controlled-release, uniform in composition, free flowing, singular manufacturer-blended combination of soil conditioning material and fertilizer with micronutrients, suitable for application with approved equipment. It shall not contain any sewage sludge or manure-based products, and shall contain the guaranteed minimum available analysis range. Installed in the hydroseed slurry mix, and consisting of the following minimum available percentages by weight of plant food:

Element/Material Targeted Property
Range
Nitrogen (N) 5.0% to 6.0%
Phosphoric acid (as
P2O5)

2.0% to 3.0%
Potash (as K2O) 1.0% to 4.0%
Humic Acids 15.0% to 20.0%

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Calcium (Ca) 7.0%
Sulfur (S) 0.0% to 5.0%

2. Products, Manufacturers and Associated Rates of Application: Subject to compliance with requirements, provide products by one (1) of the following:
a. Tri-C 6-2-4, Tri-C Enterprises LLC, Chino, CA, 800-927-3311. 1) Application Rate at 70 lbs. per 1,000 square feet of planting area. b. Gro-Power Plus 5-3-1, Gro-Power, Chino, CA. 909-393-3744. 1) Application Rate at 200 lbs. per 1,000 square feet of planting area. c. Or equal, as approved by the Landscape Architect.

E. Mycorrhizal Inoculum for Hydromulch-type Applications: To be added as part of the Hydromulching operations, providing a dual soil-conditioning biological inoculum system of endo-and ecto- Mycorrhizal to further aid the immature plant’s ability to efficiently uptake available soil nutrients and also increase resistance to drought.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Tri-C Endo 120, Tri-C Enterprises LLC, Chino, CA, 800-927-3311. b. Gro-Life, Gro-Power, Gro-Power, Chino, CA. 909-393-3744. c. Or equal, as approved by the Landscape Architect.

2. Provide at the prescribed application rate per the Manufacturer’s written recommendations, or as indicated herein this Section.

3. Selected Manufacturer of the Hydromulching Slow-Release Fertilizer and the Mycorrhizal Inoculum for Hydromulch-type Applications shall be of the same manufacturer.

F. Water: Clean, fresh, potable, free of deleterious materials, as furnished by Owner. Transport as required.

2.4 HYDROMULCHING MIXTURES (Refer to Part 3 herein this Section for requirements) PART 3 - EXECUTION

3.1 EXAMINATION
A. Verification of Conditions:

1. Grades: Verify that grades are within one-inch (1”) plus or minus (+/-) of the required finished grades. Verify that applicable soil preparation and erosion control materials have installed under other Sections of the Contract Specifications (Refer to Soil Preparation Specification 329113). Report all variations in writing.

2. Irrigation System: Verify that the irrigation system is installed and 100% coverage of the subject area is complete, tested, and in full working order. Complete installation of the irrigation system is a prerequisite for commencing work under this Section.

3. Stones, Weeds, and Debris: Verify that planting areas under this Section are clear of stones larger than 1/2 in. diameter, and that weeds, debris and other extraneous materials have been removed prior to installation.

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3.2 PREPARATION
A. Limit sub-grade preparation to areas that will be planted in the immediate future.

B. Excessive Soil Moisture: Do not commence Work under this Section when Soil Moisture Content is so great that excessive compaction to the soil will occur during installation. Owner and/or Landscape Architect shall be the sole judges as to a acceptable soil moisture content.

C. Inadequate Soil Moisture: Apply water, in quantity as necessary, to bring soil to a optimum moisture content for installation under this Section. Do not work soil when it is so dry that dust will form in air or where clods will not readily break apart.

D. Cultivation of Slopes: Planting areas of 2:1 slopes and greater shall be ripped or cultivated to a depth of three inches (3”) immediately prior to hydroseeding. Refer to Section 329113 – Soil Preparation.

E. Hydro-mulching of Non-irrigated Grass/Wildflowers Areas: Installation shall only occur during the period between October 15th and December 1st.

F. Erosion Control Fabric: Refer to Section 329400 – Landscape Planting Accessories.

G. Contractor's Option: Perform manual hand seeding, machine, or hydro-mulching of planting areas.

3.3 TURF GRASS SOD INSTALLATION
A. Delivery: Sod slabs shall be delivered on pallets and installed at the Project Site within twentyfour (24) hours after harvesting. Sod not installed within this time period shall be inspected and approved or rejected by the Landscape Architect. Do not lay sod if dormant.

B. Protection: Protect root system of the sod from exposure from the weather, including dehydration, contamination, and heating during transportation to the site and delivery. In hot, dry, or windy weather conditions, stacked sod at the Project Site shall be lightly sprinkled with water to prevent sod slab edges from drying out.

C. Allowance Period for Soil Settlement: Turf Grass Sod installation shall be started only after soil preparation and finish grading has been completed and soil has been permitted to settle under full irrigation during deep-water leaching operations for a minimum of two (2) weeks.

D. After Allowance Period of Soil Settlement has expired, the areas to be sodded shall be loosened to a depth of two-inches (2”), raked, and floated to the final finished grade by a standard acceptable method. Finished areas shall be kept moist, even, and smooth, free from ridges and depressions, rocks, debris, and dirt clods, and reasonably well firmed.

E. Compaction and Final Grading: Contractor shall provide sod beds that will not “footprint.

Lightly rake and roll soil with two-hundred (200) pound water-ballast roller (filled 1/3 – 1/2 full), and bring level firm to finish grade. Final rolling shall be at right angles to slopes to prevent erosion. Sub-soil finish grade shall be sufficiently below the final grade to allow for the thickness of the sod material. Where applicable, newly sodded areas shall blend and match with existing turf grass areas so as to produce a smooth, unified field of turf grass.

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F. Application of Fertilizer: Apply the Pre-plant Starter Fertilizer evenly throughout the area to be sodded, at the prescribed application rate. Evenly distribute fertilizer by applying equal quantities in two (2) directions at right angles to each other.

G. Raking: After broadcasting starter fertilizer, lightly rake and smooth seed bed surface to 1/4 in. depth. Install sod immediately thereafter, provided the sod bed has remained in a friable condition.

H. Sodding Operations:

1. Lay sod to form a solid mass with tightly fitted butt joints, with “green-side up”.

2. Starter Strip: Lay first row of sod in a straight line, with subsequent rows parallel to and tightly against each other.

3. Butt ends and sides of sod; do not stretch or overlap. Stagger sod strips or pads (in a running-bond-type pattern) to offset joints in adjacent courses.

4. Avoid damage to sub-grade or sod during installation.

5. Tamp and roll lightly to ensure full contact with sub-grade, eliminate air pockets, and form a smooth surface. Work sifted soil or fine sand into minor cracks between pieces of sod; remove excess to avoid smothering sod and adjacent grass.

6. Lay sod parallel to the lay of the sodded area. Lay sod across angle of slopes exceeding 3:1, beginning at the bottom of slope area.

7. Anchor sod on slopes exceeding 6:1 with wood stakes spaced at two (2) pegs per square yard. Provide not less than two (2) anchors per sod strip to prevent slippage.

8. Cutting: Use a sharp knife to cut sod to fit straight segments or curves (and apertures in "turfblock" paving). Trim sod in straight lines when planting beds are linear or parallel to the hardscape elements. Trim sod slabs in a smooth, continuous curve when sod edges are placed against curvilinear hardscape elements.

9. Mulch Ring at Sod in Turf Grass Areas: Trim sod in clean diameter circles around the perimeter of trees planted in turf grass areas, as indicated on the Contract Drawings. The Mulch Ring circles shall have the tree trunk located in the middle of the circle. Provide Organic Wood Mulch in these areas, at the designated thickness specified herein this Section.

I. Initial Watering: Saturate sod with fine water spray within two (2) hours of planting. Do not lay entire amount of sod before beginning watering. Water in lightly, when a relatively large area of sod has been placed.

1. During first week, water daily to supplement rainfall as necessary to maintain moist soil to a minimum depth of two-inches (2”) below the sod until sod has rooted. Repeat watering at regular intervals until sod has established itself.

2. Once established, decrease the watering frequency and increase the amount of water per application.

J. Protection on Site: Erect temporary barricades, warning signs & flags, as required. Protect the sodded areas against vehicular and pedestrian traffic until sodded areas have established growth to the satisfaction of the Owner or Landscape Architect.

K. Sod Establishment:

1. Mow and maintain turf height recommended by the turf grass nursery. Do not cut more than 40% of the total grass blade length in one (1) single mowing.

2. Replace dead or dying sod with new sod.

3. Eradicate weeds between second and third mowing. Apply herbicides uniformly at the Manufacturer’s recommended rate.

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4. Apply a second application of the Pre-plant Starter Fertilizer uniformly to the surface at the Manufacturer’s recommended application rate thirty (30) days after seeding.

5. Dispose of protective barricades and warning signs at the termination of the sod establishment period.

3.4 HYDROSEED/HYDROSTOLON (HYDROMULCHING) INSTALLATION (Wildflower and/or Slope Stabilization Installation)
A. General Application Requirements:

1. Areas to receive hydro-mulching are to be applied by a licensed and approved hydromulch contractor, with qualified applicators. Submit valid registration under Submittals Article herein this Section prior to commencing Work.

2. Weed Control: Apply pre-plant weed control to the hydro-mulching areas, to the satisfaction and approval of the Landscape Architect, prior to hydro-mulching operations.

3. Install irrigation system, plant container stock, and perform fine grading and specified soil preparation operations, as required, to the satisfaction and approval of the Landscape Architect prior to commencing hydro-mulching operations. a. Restrictions: Do not perform hydro-mulching operations when winds exceed fifteen (15) mph.

4. Hydro-mulching Equipment: Hydraulic equipment used for the application of the hydromulching slurry mixture shall be of the type as approved by the Landscape Architect. a. Equipment shall have a built-in agitation system with an operating capacity sufficient to agitate, suspend, and homogeneously mix a slurry containing onethousand-two-hundred (1,200) pounds of mulching material. b. The slurry distribution lines and nozzles shall be large enough to prevent stoppage and shall provide even distribution of the slurry.
c. The slurry tank shall have a minimum capacity of one-thousand-five-hundred (1,500) gallons and shall be mounted on a traveling unit which will place the slurry tank and spray nozzles within sufficient proximity to the areas to be sprayed so as to provide uniform distribution without waste.

5. Pre-Application Cleaning: Prior to preparing hydro-mulching slurry, thoroughly clean and flush hydro-mulching storage tank, agitators, hoses, nozzles, and other equipment that will come into contact with slurry mixture free from residue from previous hydromulching applications. Verify with Owner’s Representative a location where cleaning can be demonstrated, and perform flushing operations to the visual satisfaction of the Owner’s Representative.
a. When different hydro-mulching seed mixtures are being applied for the project using the same hydro-mulching equipment, Contractor shall provide a thorough cleaning of the hydro-mulching equipment between applications to insure that no cross-contamination occurs between the mixture recipes.

6. Timing: Hydro-mulching operations shall be applied twenty-four (24) hours prior to or following a storm event. Verify application date(s) with the Landscape Architect prior to installation.

7. Hydro-mulching slurry mixes that have not been applied within thirty (30) minutes (forty-five (45) minutes maximum) after mixing shall be rejected.

B. Mixing/Blending: In a clean hydro-seeding vessel, fill vessel with water to at least one-third (1/3) capacity (high enough to cover agitators) prior to adding any hydro-mulching ingredients.

Continue to fill vessel with water and add all specified liquid-based ingredients while agitators are in motion. Once full with the accurate amount of ingredients in solution, add the specified

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dry ingredients, and continue mixing/agitating until uniformly blended into a homogenous slurry suitable for hydraulic application. Continue to mix tank a minimum of ten (10) minutes prior to application. Note that correct mixing and proper application are key factors in obtaining satisfactory performance.

C. Application: Apply slurry uniformly to hydro-mulched areas in a one- (1) step process. Slurry shall be applied by a qualified applicator, at a minimum rate of three-thousand (3,000) gallons/acre (higher rates may be required) evenly over the entire area to be treated. Caution should be taken to avoid creating puddles or runoff. The slurry must be sprayed from multiple directions and angles to ensure complete and proper coverage. Apply slurry in a sweeping motion so as to fall like rain, allowing the slurry to build upon itself on the ground until a coating is achieved that resembles a thick, blotter-like groundcover. Treated areas shall not be disturbed after application.

1. A Certificate of Compliance shall be furnished to the Landscape Architect, stating that the appropriate quantities, blending and application methods as specified herein have been properly followed.

D. Hydro-Mulching Mixtures:

1. Hydro-seed Mixture (for Wildflower and/or Slope Stabilization Applications; One (1)- Step Process):

Material Quantity
Wildflower, and/or Slope Stabilization
Seed Mix
Refer to requirements herein this Section for selected Wildflower, and/or Slope Stabilization Seed Mix and Application Rate(s).

Wood Fiber Mulch, pre-blended with
Binder Additive / Soil and Mulch
Tackifier
Per Selected Manufacturer’s Recommended Application Rate, per slope condition.

Soil Stabilizing Emulsion Blend AdditivePer Manufacturer’s Recommended Application Rate.

Hydromulching Slow-Release
Fertilizer
Per selected Manufacturer’s Recommended Application Rate.

Mycorrhizal Inoculum for Hydromulch-type Applications.Per Selected Manufacturer’s Recommended Application Rate Water As required to provide a homogenous
slurry suitable for hydraulic application.

E. Germination: Hydro-mulched areas shall be kept thoroughly moist to insure germination and growth of the sown plant material. Do not allow the plant material bed to dry out at any time.

Irrigate hydro-mulched areas thoroughly immediately after the application, for a minimum of

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twenty-one (21) to twenty-four (24) days after planting, or until the new growth of the plants is sufficiently well-established, as per the Landscape Architect’s instructions.

F. Protection of Hydro-Mulched Areas: Hydro-mulched areas shall be protected against foot or vehicular traffic and other use immediately after hydro-mulching installation is completed.

Contractor shall install temporary warning signs, stakes, twine, flagging, etc., as required, around the perimeter of the areas that have been hydro-mulched to deter activity from disturbing the germination and growth of the hydro-mulched areas. Contractor shall remove protection as instructed by the Landscape Architect.

1. Hydro-mulched areas that do not germinate satisfactorily, in the sole opinion of the Landscape Architect, shall be re-hydro-mulched at approximately fourteen (14)-day intervals, using the same specified materials and installation methodology until an overall acceptable stand of growing plant material is produced.

3.5 FIELD QUALITY CONTROL
A. Tests: Samples of materials may be taken and tested for conformity to the Contract Specifications at any time by the Landscape Architect.

B. Rejected Materials: Remove rejected materials immediately from the site at Contractor's expense. Pay cost of testing of materials not meeting the Contract Specifications.

C. Intent: A consistent, thriving, and even cover of installed sod, or hydro-mulching materials is the intent of this Section.

D. Satisfactory Installation Performance Standards:

1. Turf Grass Sod: A consistent, thriving, and even cover of installed sod materials is the intent of this Section At the end of the Landscape Establishment Period, a healthy, uniform, close stand of sodded turf grass has been established, free of weeds and surface irregularities, at100% percent full coverage with no bare spots. Provide additional sod, as required, to meet design intent. Failure to comply with this requirement shall extend the Landscape Establishment Period accordingly until the requirement is met.

2. Hydro-Mulching Applications: At the end of the Landscape Establishment Period, a healthy, uniform, close stand of hydro-mulched plant material has been established, free of weeds and surface irregularities, with coverage exceeding 95% percent coverage with no bare spots exceeding 6” inches. Failure to comply with this requirement shall extend the Landscape Establishment Period accordingly until satisfactory installation requirements are met.

3.6 CLEANING
A. Hydro-mulching Overspray: Upon completion of hydro-mulching operations, clean off any slurry overspray from drainage devices, paving surfaces, plant materials, and site or architectural features. Contractor shall exercise caution in cleaning these areas so as not to wash away previously hydro-mulched areas (as applicable).

B. Erosion: Immediately restore eroded areas. Keep adjacent paved surfaces cleaned of dirt, mud or stains and organic debris.

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END OF SECTION

EXTERIOR PLANTS
329300 - 1
SECTION 329300 – EXTERIOR PLANTS
PART 1 - GENERAL

1.1 SUMMARY
A. This Section includes materials, labor, apparatus, tools, equipment, temporary construction, transportation, and services necessary for and incidental to performing the proper completion of Work, as required to make a complete Exterior Landscape Planting installation, as shown in the Contract Drawings, and as specified herein this Section.

B. Work under this Section consists of, but is not necessarily limited to, furnishing and installing the following:

1. Trees.

2. Shrubs.

3. Ground Covers.

4. Ornamental Grasses.

5. Succulents

6. Perennials.

C. Related Sections: The following Sections contain requirements that relate to Work in this Section:

1. Section 025639 – Temporary Tree and Plant Protection.

2. Section 311000 – Site Clearing.

3. Section 312219 – Landscape Grading.

4. Section 328400 – Landscape Irrigation.

5. Section 329113 – Soil Preparation.

6. Section 329200 – Lawns and Grasses.

7. Section 329400 – Landscape Planting Accessories.

8. Section 329813 – Landscape Establishment Period.

1.2 DEFINITIONS AND APPLICABLE STANDARDS
A. References:

1. ASTM – American Society for Testing Materials.

2. USDA – United States Department of Agriculture.

3. ANSI – American National Standards Institute.

B. Reference Standards:

1. An Annotated Checklist of Woody Ornamental Plants of California, Oregon, and Washington, (Number 4091), McClintock and Leiser, Division of Agricultural Sciences, University of California, 1979.

2. American National Standard for Nursery Stock (ANSI Z60.1). American National Standards Institute, and American Association of Nurserymen, Latest edition,

3. American Joint Committee on Horticultural Nomenclature, 1942 Edition of Standardized Plant Names.

4. Hortus III, 1976 Edition, Liberty Hyde Bailey Hortorium, Cornell University.

5. The Hillier Gardener’s Guide to Trees and Shrubs, 4th Edition, 1978.

EXTERIOR PLANTS
329300 - 2

6. Manual of Cultivated Conifers, Den Ouden & Boon, 1978.

7. Datascape Guide to Commercial Nomenclature, American Nurserymen Publishing Co., Chicago, IL, 1994.

8. American National Standard for Tree Care Operation, Tree, Shrub, and Other Woody Plant Maintenance (ANSI A300), American National Standards Institute, Latest Edition.

C. Definitions:

1. Plant Material(s) – Refers to living plant species, inclusive of trees, shrubs, groundcovers, vines, ornamental grasses, cacti/succulents, espaliers, annuals, perennials, etc., as indicated in the Contract Drawings.

2. Planting Area (PA) – As denoted on the Contract Drawings, shall refer to areas to be installed with Plant Material(s), or areas where existing vegetation shall be protected.

3. Plant Height – Measurement of main body height, not measurement to branch tip.

4. Plant Spread – Measurement of main body diameter, not measurement from branch tip to branch tip.

5. Amended Planting Backfill Mixture – Refer to Section 329113 – Soil Preparation.

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

7. Balled and Potted Stock – Healthy, vigorous exterior 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 exterior plant required.

8. Bare-Root Stock – Healthy, vigorous exterior plants grown with a well-branched, fibrousroot system developed by transplanting or root pruning, with soil or growing medium removed, and with not less than minimum root spread according to ANSI Z60.1 for type and size of exterior plant required.

9. Clump – Where three or more young trees were planted in a group and have grown together as a single tree having three or more main stems or trunks.

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

11. Fabric Bag-Grown Stock – Healthy, vigorous, well-rooted exterior 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 exterior plant.

12. Finish Grade – Elevation of finished surface of planting soil.

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

14. Multi-Stem – Where three (3) or more main stems arise from the ground from a single root crown or at a point right above the root crown.

15. Sub-grade – Surface or elevation of subsoil remaining after completing excavation, or top surface of a fill or backfill, before placing planting soil.

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

D. Measurements:

1. sq/ft or SF: Measurement, in square-foot.

EXTERIOR PLANTS
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2. O.C.: Measurement used for On-Center spacing.

1.3 SUBMITTALS
A. General:

1. Collect information into a single Submittal for each element of construction and type of product or equipment identified under this Section for review.

2. To expedite review, Submittal shall be organized and presented into specific sections or headings. Furnish neat, concise, legible, and clearly identifiable information, and sufficiently explicit detail, to enable proper evaluation for Contract compliance. Highlight catalog, product data, or brochures containing various products, sizes, and materials to show particular item submitted.

3. Submittal Format: As applicable, furnish Submittal as a single electronic digital PDF (Portable Document Format) file.

B. Digital Submittal Information:

1. Alphabetized List of Plant Material.

2. Planting Installation Schedule:
a. Provide anticipated site area(s) and dates of installation for each type of planting.

3. Qualification Data, f or firms and persons specified in the "Quality Assurance and Control" Article to demonstrate their capabilities and experience. Include lists of completed projects with project names and addresses, names and address of architects and owners, and other information specified.

4. Meeting Notes from Pre-installation Conference.

5. Description of Plant Material, for each species indicated in the Contract Drawings, submitted in the following format:

EXTERIOR PLANTS
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(Provide Color Photograph of Plant Material here)
(Note: Photograph shall include a person, tape measurer, or other scaled reference).

Project Name:

Botanical Name:

Common Name:

Form (Multi, Standard,
etc.):

Container Size (as
applicable:)
Overall Height (provide
Apical Meristem Height for
Palms):

Spread:

Caliper (as applicable):

Quantity Required (per
Contract Drawings):

Quantity Available (at
supplying Nursery):

Supplying Nursery Name:

Contact Name at Nursery:

Nursery Address:

Nursery Phone Number:

Date of Nursery Photo:

Comments/Remarks:

6. The Alphabetized List of Plant Material and Description of Plant Material shall not be construed as to acceptance of the Plant Material. All Plant Material shall be subject to review and approval by the Landscape Architect upon delivery to the Project Site.

C. Submittals under this Article will be rejected without the benefit of review by the Landscape Architect if they are difficult to read due to insufficient scale, poor image quality, or poor drafting quality; or if the required information is missing or not presented in the format as requested.

EXTERIOR PLANTS
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D. No Work shall proceed under this Section until Submittal requirements indicated herein have been reviewed accordingly by the Landscape Architect.

1.4 QUALITY ASSURANCE AND CONTROL
A. Installer Qualifications:

1. Requirement: Valid California C-27 (Landscaping Contractor) License.

2. Engage an experienced Installer who has demonstrated completed landscaping work similar in material, design, and extent to that indicated for this Project and with a record of successful landscape establishment.

3. Installer's Field Supervision: Installer shall maintain an experienced full-time supervisor on the Project site during times that landscaping installations under this Section are in progress.

B. Plant Material: Provide quality, size, genus, species, and variety of Plant Material indicated, complying with applicable requirements of ANSI Z60.1 "American Standard for Nursery Stock."

1. Selection of Plant Material purchased under allowances will be made by the Owner, who has the option to tag Plant Material stock at their place of growth before they are prepared for transplanting.

2. At least one (1) plant of each Plant Material species delivered to the Project Site shall have an identification tag from supplying nursery showing botanical and common name of the plant as identified in the Contract Drawings. Landscape Architect shall be provided the opportunity for an on-site debriefing by the Contractor that identifies the size and specific type of Plant Material upon delivery.

3. Incorrect Planting Materials:
a. Replace, at no cost to Owner, Plant Material that is revealed during the course of the Contract as to being untrue to the species indicated in the Contract Drawings and reviewed accordingly under this Section.
b. Provide replacements equal to the size and quality to match the planted materials at the time the untrue species is discovered.

4. Replacement of Plant Material: Refer to the Guarantee Article indicated herein this Section.

C. Observation: Landscape Architect may observe Plant Materials at their place of growth (nursery), at the site before or after planting, or both, for compliance with requirements for genus, species, variety, size and quality. Landscape Architect also retains right to observe Plant Material further for size and condition of root balls, trunks, branches, and crowns; insects; pests; disease; weeds; injuries, and latent defects. Landscape Architect reserves the right to reject unsatisfactory and/or defective Plant Material at any time during progress of Work. Contractor shall remove rejected Plant Material immediately from Project site.

D. Regulatory Requirements:

1. Contractor shall meet the requirements of applicable laws, codes, and regulations as required by the authorities having jurisdiction over the Work.

2. Provide for inspections and permits by Federal, State, and Local authorities in furnishing, transporting, and installing materials.

E. Permits, Fees, Bonds, and Inspections: Contractor shall arrange and pay for permits, fees, bonds, and inspections necessary to perform and complete Work under this Section.

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F. Plant Material Review and Selection (Tagging):

1. At the discretion of the Landscape Architect, Plant Material will be subject to review, photographed, and selected/tagged by the Landscape Architect at the nursery, or other place of growth, prior to delivery to the Project Site. Contractor shall verify with the Landscape Architect if tagging operations are required.

2. Selecting/Tagging of Plant Materials at the nursery or place of growth does not cancel the right of the Landscape Architect to reject Plant Materials at the Project Site, if damaged or unacceptable conditions are found that were not detected at the nursery, place of growth, or in the submitted photographs.

G. Plant Material Delivery: Plant Material shall be delivered with original Plant Material tagging materials set in place, as selected and marked by the Landscape Architect at the nursery or place of growth. Contractor shall notify Landscape Architect upon deliver of Plant Material for review of stock and tagging materials. Plant Materials delivered without original tagging materials, or with broken, damaged, or altered tagging materials, shall be subject to rejection by the Landscape Architect. Rejected Plant Material shall be removed immediately.

H. Pre-installation Conference: Conduct conference at Project Site to comply with requirements of Division 1 Section "Project Meetings".

I. Protection of Existing Plant Material:

1. Refer to Requirements specified in Section 025639 – Temporary Tree and Plant Protection.

2. It is the intent of the Contract Documents that certain existing Plant Materials shall be retained. Prior to the removal of any Plant Materials, the Contractor shall confer with the Landscape Architect to determine which Plant Materials are to remain.

3. All existing Plant Materials which are to remain in the project shall be tagged and identified by the Contractor prior to start of Work.

4. Contractor shall be responsible for Plant Materials that are designated to remain. Damage to any Plant Materials which results in death or permanent disfiguration of said Materials shall result in compensation outlined in Section 025639 – Temporary Tree and Plant Protection. The Landscape Architect shall be the sole judge of the condition of the Plant Materials.

5. Existing Plant Materials designated to remain shall be protected at all times from damage by construction activity (tools, materials, equipment, personnel, etc.). Damage by the Contractor to existing Plant Materials shall be repaired at the Contractor’s expense to the satisfaction of the Owner, as directed by the Landscape Architect.

6. Contractor shall insure that no foreign material and/or liquid, such as paint, concrete, cement, oil, turpentine, acid or the like, be deposited or allowed to be deposited on soil within the drip line (the outside edge of the foliage overhang) of any Plant Material. Do not store construction materials, debris, or excavated material within drip line of existing Plant Material. Should any such poisoning of the soil occur, the Contractor shall thoroughly remove said soil as directed by the Landscape Architect and replace with acceptable soil at no additional cost to the Owner.

7. Excavation adjacent to existing Plant Materials: Where it is necessary to excavate in close proximity to the drip lines of existing Plant Materials, all possible caution shall be exercised to avoid injury to roots and trunk. Excavation close to Plant Materials shall be done by hand, with narrow-tine spading forks or other approved tools to comb soil to expose roots.

Tunnel under roots two-inches (2”) and larger in diameter. Cutting of roots two-inches (2”) and larger shall be only on the approval of the City’s appointed Arborist.

8. Replacement of Damaged Plant Material: Replace existing Plant Material to remain as required, hat are damaged by Contractor during construction with accepted Plant Material

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of the same species, size, and quantity as those damaged, at no additional cost to Owner.

Owner shall be the sole judge as to the extent of the damage and the value of said damaged Plant Material.

1.5 DELIVERY, STORAGE, AND HANDLING
A. General: Do not prune Plant Material before delivery, except as approved by the Landscape Architect. Protect bark, branches, and root systems from sun scald, drying, sweating, whipping, and other handling and tying damage. Do not bend or bind-tie Plant Material in such a manner as to destroy natural shape.

1. Immediately after digging field-grown Plant Materials, pack root systems in wet straw, hay, burlap, or other suitable material to keep root system moist until final planting installation.

2. Deliver freshly dug field-grown Plant Materials with firm, natural balls of earth of sufficient depth to include fibrous and feeding roots, meeting or exceeding requirements of ANSI Z60.1 for root ball diameter.

B. Handling Plant Materials:

1. Handle balled and burlap Plant Material stock by the root ball.

2. Handle container-grown Plant Materials only by their containers.

3. DO NOT handle Plant Materials by their trunks or stems.

4. DO NOT drop any Plant Materials.

5. DO NOT bind or handle Plant Materials with wire or rope.

6. Pad trunk and branches of Plant Materials whenever using hoisting cables, chains, or straps.

7. Should the Contractor engage in handling any Plant Material(s) by any unacceptable method(s), the Landscape Architect shall reserve the right to reject any of the mishandled Plant Material(s). The Contractor shall replace rejected Plant Material(s) with approved Plant Material(s), at no additional cost to the Owner.

C. Delivery: Provide protective covering during delivery. Deliver Plant Material only after preparations for planting have been completed and install immediately. If planting is delayed more than six (6) hours after delivery, set Plant Materials in shade, protect from weather and mechanical damage, and keep roots moist. Anchor plants to prevent damage from winds.

1. Heel-in bare-root Plant Material stock. Soak roots in water for two (2) hours prior to planting.

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

3. DO NOT remove container-grown Plant Material stock from containers before time of planting.

4. Water root systems of Plant Material stored on site with a fine-mist spray. Water as often as necessary to maintain root systems in a moist condition.

1.6 COORDINATION, SCHEDULING, AND OBSERVATIONS
A. Acceptance: Do not install Plant Materials prior to acceptance of finish grades and installation of irrigation system.

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B. Utilities: Determine location of above grade and underground utilities and perform Work in a manner which will avoid damage to utilities. Hand excavate, as required. Maintain grade stakes until removal is mutually agreed upon by parties concerned.

C. Excavation: When conditions detrimental to plant growth are encountered, such as rubble fill, adverse drainage conditions, or obstructions, cease planting operations and notify Landscape Architect for further direction.

D. Construction Site Observations: Landscape Architect may observe installation Work herein this Section at Project Site for compliance with requirements for type, size, and quality. Landscape Architect retains right to observe installation of products and materials for defects and to reject unsatisfactory or defective product, material, or installation at any time during progress of Work.

Contractor shall remove rejected Work immediately from Project site. Contractor shall request, in writing, at least one (1) week in advance of the time when mandatory site observation(s) by the Landscape Architect are required.

1.7 PROJECT SITE CONDITIONS
A. General: Installation of Plant Materials shall be performed only during the time of day and during seasons when satisfactory results can be expected, unless authorized by the Landscape Architect.

B. Climate Restrictions: Do not install Plant Materials during rainy or inclement weather.

1.8 SUBSTITUTIONS
A. Consideration: Plant Materials to be considered equal to the Plant Materials indicated herein this Section shall be reviewed by the Landscape Architect. Plant Materials with equal performance characteristics may be considered, providing deviations in dimensional size, color, composition, operation, and/or other characteristics do not change the design concept, aesthetic appearance, or intended performance, as solely judged by the Landscape Architect. The burden of proof on product equality is on the Contractor.

1. Substituted Plant Materials shall be true to species and variety and shall conform to measurements specified, except that plants larger than specified may be used if accepted.

If larger Plant Materials are accepted, increase the ball of earth in proportion to the size of the plant, as required. Plant Materials overgrown for their container size will be rejected.

B. Specific reference to Manufacturer’s names and products specified herein are used as standards of quality. This implies no right to the Contractor to substitute other materials without prior written approval by the Landscape Architect for Work under this Section.

C. Plant Materials substituted and installed by the Contractor, without prior written approval by the Landscape Architect, may be rejected. Contractor shall not be entitled to be compensated by the Owner where the Contractor has installed rejected substitutions without receiving prior written approval.

D. Contract Price: Substituted Plant Materials under this Section shall not increase the Contract price.

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1.9 WARRANTY
A. General: The Warranty indicated herein in this Article shall not deprive the Owner of other rights the Owner may have under other provisions of the Contract, and shall be in addition to, and run concurrent with, other guarantees or warranties made by the Contractor under requirements of the Contract Documents.

B. Warranty: Contractor shall warrant living Plant Materials under this Section for a period of one (1) year after date of Substantial Completion. Warrant against defects including death and unsatisfactory growth, except for defects resulting from lack of adequate maintenance, neglect, or abuse by the Owner; abnormal weather conditions unusual for the Warranty Period; or incidents which are beyond the Contractor's control.

C. Replacement of Plant Material:

1. Replace Plant Materials exhibiting conditions which are determined to be unacceptable due to workmanship by the Contractor, at no cost to the Owner, per the direction of the Landscape Architect.

2. Remove and replace dead or dying Plant Material immediately unless required to plant in the succeeding planting season.

3. Contractor shall be held responsible for a maximum of two (2) replacement of each failed Plant Material after Final Acceptance during the Warranty Period. a. Closely match replacements to adjacent specimens of the same species. Apply requirements of this Specification to replacements.

1.10 FINAL ACCEPTANCE AND LANDSCAPE ESTABLISHMENT PERIOD A. Refer to Section 329813 – Landscape Establishment Period.

PART 2 - PRODUCTS

2.1 GENERAL REQUIREMENTS FOR PLANT MATERIAL
A. Immediately upon award of Contract for Work in this Section, Contractor shall locate and purchase or hold for purchase plant material as required.

1. Contractor shall verify with Landscape Architect of Plant Material that has been nursery “contract grown” by the Owner for use of Work under this Contract.

2. Contractor shall review the condition of the Plant Material with Landscape Architect at the nursery maintaining the Plant Material prior to delivery, and when delivered to the Project Site.

B. Quality: Plant Materials shall have a growth habit typical for each variety and species indicated in the Plant List (as detailed on the Contract Drawings).

1. All Plant Materials specified shall be superior/premium-grade nursery stock, full, densely foliated, symmetrical, with tightly knit branching, so trained or favored in development and appearance in form, number of branches, compactness and symmetry, healthy, and vigorous in growth, as reviewed and determined by the Landscape Architect.

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2. Plant Materials shall be free from insect pests, eggs and larvae, plant diseases, sun scalds, fresh bark abrasions, excessive abrasions, windburn, salt burn, weeds, or other disfigurements or conditions, as reviewed and determined by the Landscape Architect.

3. Plant Material shall be subject per the California State Department of Agriculture’s Regulations for Nursery Inspections of Rules and Grading.

4. Growing Conditions: Plant Materials shall be nursery-grown in accordance with good horticultural practices under climatic conditions similar to those of project unless otherwise specifically authorized.

C. Container Stock (excluding annuals) shall be grown in boxes or containers in which delivered for at least one (1) growing season, but not over two (2) years. Plant Material grown in boxes or containers shall be cultivated during this time to permit full rooting within the specified box or container to bind the planting soil, but not so long as to create a “root-bound” condition.

1. Plant Material shall be completely free of circling, kinked or girdling trunk surface and center roots, and show no evidence of a pot-bound condition.

2. No boxed nor container Plant Material shall be planted which have cracked or broken balls of earth when separated from their boxes or containers.

3. No Plant Material shall be planted with damaged roots, broken root balls, or which are found to be “root-bound” when separated from their containers.

D. Pruning:

1. Do not prune Plant Materials unless directed by the Landscape Architect.

2. Pruning of Plant Material as grown at the nursery shall conform to ANSI A300 standards.

3. Consult with Landscape Architect for pruning Plant Materials after delivery and installation.

E. Measurements: Measure Plant Material according to ANSI Z60.1 with branches and trunks or canes in their normal position. Do not prune to obtain required sizes.

1. Take caliper measurement at a point on the trunk six-inches (6”) above natural ground line for trees up to four-inches (4”) in caliper (at a point twelve-inches (12”) above the natural ground line for trees over four-inches (4”) in caliper). a. Measure foliage across mean foliage dimension when branches are in their normal upright position.
b. For trees to be supplied in “raised up” condition, foliage origin along main trunk shall be measured from soil line after installation.
c. Height and spread dimensions specified refer to main body of plant and not branch tip to tip. Properly trimmed plants shall measure the same in any direction. If a plant is unevenly grown, it shall be classified in the size category of the smallest dimension.

2. Size Range: If a range of size is given, do not use Plant Materials less than the minimum size. The measurements specified are the minimum size acceptable and are the measurements after pruning, where pruning is required. Plant Materials that meet the measurements specified, but do not possess a normal balance between height and spread shall be rejected.

F. Field Dug Stock: Prior to digging of field-grown Plant Materials, insure that excess loose fill resulting from cultivation around trunks/stems and over roots be removed down to natural finish grade at crown of Plant Materials. During digging, verify that size of tree spade or other equipment is adequate to encompass the actively growing root zone of all Plant Materials. Plant Materials which, after digging, show mostly large fleshy roots and few fibrous roots, will be rejected.