HomeMy WebLinkAbout3337-111.01 Scope of Work
All work shall be performed by a contractor with a C-27 license or greater. Work shall consist of furnishing all
materials, services, and equipment necessary to completely install all landscape work as indicated on the
drawings and herein specified.
1.02 City Inspections and Tests
A. Inspections shall be performed by a City or County Representative at the following tests. A 48-hour notice
shall be given prior to anticipated inspections. Notify City or County of commencement of landscaping -
give anticipated timeline from start to finish.
Inspections shall be as follows:
1) Upon completion of finished grade, soil preparation and final rake out.
2) When trees and shrubs are spotted for planting, with the examples of planting holes for trees and
shrubs.
3) Final Inspection when planting and all other specified work has been completed.
B. All landscaping, irrigation, and street trees shall be installed and maintained in accordance with City and
County Codes, Ordinances, and Standard Requirements.
C. Material requirement for all plant material shall be #1 grade of the California Nursery Industry Certificate
as issued by the agricultural commissioner of the county of origin.
1.03 Guarantee
A. All plant materials installed and workmanship performed under the contract shall be guaranteed against
any and all poor, inadequate, or inferior materials, and/or workmanship for a period of 365 days from the
date of written final acceptance by City or County.
B. During the guarantee period, any material found to be dead, missing, or in poor condition shall be
replaced by the Contractor within 10 days of written notification.
C. Replacement shall be made in accordance with the original contract drawings and specifications.
D. Material and labor involved in replacing plant material shall be provided by the Contractor at no additional
cost to the City or County.
1.04 Solis Test
Contractor shall obtain agronomic soils tests covering all planting areas after completion of finish grading and
prior to start of soil preparation work. Tests shall be performed by an approved agronomic soils testing
laboratory and shall include a fertility and suitability analysis with written recommendations for soil preparation
and planting backfill mix. The soils report recommendations shall take precedence over minimum amendment
and fertilizer application rates specified herein only when they exceed the specified minimums.
2.01 Fertilizers, Organic Soil Amendments, and Inorganic Soil Amendments
Fertilizers and soil amendments may include any or all of the specific materials specified herein and shall be
applied at the rates indicated on the plans or in Part 2.06, Backfill Material, and Part 3.02, Soil Preparation,
herein.
A. Fertilizer: Shall be 'Gro -Power Plus' and 'Gro Power' 20 gram planting tablets as manufactured by
Southern California Organic Fertilizer Co, Inc., (714) 750-3830, or equal.
B. Organic Soil Amendment: Shall be nitrogen fortified redwood or cedar wood shavings and shall contain a
minimum of 1 % available nitrogen. Material containing manure or pine is unacceptable.
C. Inorganic Soil Amendment: Shall be agricultural grade iron sulfate.
2.02 Topsoil
All soil imported for backfill or as fill soil (if required) shall meet the following requirements: Backfill or fill
soil shall be from a source outside the limits of the project, selected by the Contractor and in compliance with
the requirements specified herein. The Contractor shall coordinate with the grading or general contractor in
the case of fill soil and submit a written report of a testing agency, per 1.04 Soil Test, registered by the State
prior to movement of soil. Soil shall have the same relative composition and structure, a friable sandy loam
character, and be free of roots, clods, and stones larger than 1 inch in greatest dimension, pockets of coarse
sand, noxious weeds, sticks, brush, and other litter. It shall not be infested with nematodes or other
undesirable insects and plant disease organisms. Soil shall meet the following additional requirements:
A. Gradation Limits. Sand=65%, Silt=25%, Clay=10% maximum. The sand, silt, and clay gradation limits
shall be as defined in ASTM D422.
B. Permeability Rate. Not less than 0.5 inches (13 mm) per hour nor more than 2 inches (51 mm) per hour
when tested in accordance with ASTM D2434 or other approved methods.
C. Agricultural Suitability. The topsoil shall be suitable to sustain the growth of plants specified.
2.03 Seed (if applicable, see legend)
All seed used for lawn and/or ground cover plantings shall be labeled and shall be furnished in sealed
standard containers. Seed which has become wet, moldy, or otherwise damaged in transit or storage will not
be accepted.
A. Lawn: Seed mix shall be per plan.
Note: Thoroughly blend seed varieties prior to application.
2.04 Hydromulch Materials (if applicable, see legend)
Water:
General precautions should be observed when drawing water from sources other than pressure
main. Such water must be free of impurities.
Seed:
Seed as specified in 2.03 above.
Mulch:
Fiber shall be produced from cellulose such as wood pulp or similar organic material and shall be
of such character that it will disperse into a uniform slurry when mixed with water. Materials which
inhibit germination or growth shall not be present in the mixture.
Fertilizer:
'Gro -Power' organic fertilizer per 2.01-A, above, or equal.
Binding:
Dry powder organic concentrate, Ecology Controls M -Binder or equal.
Agent
Available from Robinson Fertilizer Co. (714) 538-3575.
2.05 Plants
All plants shall be true to name, and one of each bundle or lot shall be tagged with the name and size of plants
in accordance with the standards of practce recommended by the American Association of Nurserymen, and
be No.1 grade, healthy, disease free, and have no physical damage.
Plant ground cover in areas shown on plans. Ground cover plants (rooted cuttings) shall have been grown in
flats, and remain in those flats until transplanting.
All trees and shrubs supplied by Contractor shal I be of the specified standard height and diameter set by the
American Standard for Nursery Stock. The height of the trees shall be measured from the root crown to the last
division of the terminal leader and the diameter shall be measured 6 inches above the crown roots. The trees
shall stand erect without support. Root bound material is not acceptable. All plants of like species shall be of
uniform height, spread, and form.
2.06 Backfill Material
A. Topsoil used in the backfill material shall be a loamy, fertile, and friable soil and shall be free of weeds
and seed. Topsoil shall conform to Section 2.02, Topsoil, of these specifications.
B. Backfill material shall be prepared by blending the following materials and shall be used during planting
as shown in the planting details:
1) 75% approved topsoil
2) 25% organic soil amendment, nitrogen stabilized (wood shavings)
3) 15 pounds 'Gro -Power Plus' organic fertilizer per cubic yard
4) 2 pounds iron sulfate
5) 'Gro -Power' planting tablets per manufacturer's specifications
C. All backfill material shall be bulk mixed, not individually mixed at each plant pit.
2.07 Headers, Stakes, and Ties
A. Tree stakes shall be 2" diameter x 10 foot long straight grained treated lodgepole pine.
B. Tree ties shall be "Cinch Ties" manufactured by V.I.T. Co., Cerritos, California. (714) 871-2309, or equal.
C. Root barriers shall be 'Root Booster', manufactured by Showtown Industry, Inc. or equal.
D. Arbor guards shall be'Trunk Cover- TP 128% manufactured by Showtown Ind., Inc_, or equal.
3.01 Landscape Grading
The Contractor shall bring all planting areas to finished grades, filling as needed or removing surplus dirt,
removing rocks and debris over 1 inch in diameter, and floating to a smooth uniform grade. All areas shall
slope to drain. Flow lines shall be established to existing road curbs and/or a sidewalk as shown on the plans
and as directed. Final grade of all turf and ground cover areas shall be 12' below adjacent surfaces after
establishment.
3.02 Soil Preparation
A. All landscape mounding, rough grading, and finished grading shall be completed prior to beginning soil
preparation.
B. Soil preparation shall begin with rototilling of all planting areas under grades of 2:1 to a minimum depth
of 8" prior to distributing soil amendments.
C. The following soil amendments shall be added per 1,000 square feet to all planting areas under grades of
2:1:
3 cubic yards nitrogen stabilized organic amendment derived from redwood shavings, fir, or cedar
shavings.
200 lbs. organic soil amendment: 'Gro -Power Plus' (5-3-1) organic fertilizer (to be incorporated to
a minimum 9" depth following leaching).
3.03 Planting
A. Planting is not recommended from December through February in all areas and also is not recommended
from July through August. The Contractor assumes all responsibility for planting at these times.
B. Trees and Shrubs:
Plant holes shall be dug to size as indicated in the detail drawings. Before trees are set in the holes, a
water test should be made as follows: all plant holes shall be filled to the brim with water and allowed to
drain before any planting is done. If water does not drain out of hole within 24 hours, conduct soil test.
Plants shall be planted at such a depth that the crown roots bear the same relative position to finish grade
as they did to the soils where they were grown. When Maintenance Period ends and watering basin's earth
berms are removed, under no circumstances shall dirt be leveled in a manner which buries crown roots.
Backfill after planting shall be compacted carefully into place without injuring the roots of the tree or
breaking up the ball of earth surrounding the roots.
C. Ground Cover:
Ground cover plants shall be planted in staggered rows, evenly spaced and at intervals called out on the
drawings. Each plant shall be planted with its proportionate amount of the flat soil in a manner that will
insure a minimum disturbance to the root systems. The cuttings shall be planted sufficiently deep to cover
all roots. Root crown should bear the same relationship to soil as it did in the flat. Immediately sprinkle
after each planting until entire area is soaked to the full depth of each hole.
D. Mulch: Ground Cover and Shrub Areas
Apply mulch in all ground cover and shrub areas after planting to 1 inch depth of medium barkchips or
shavings of sufficient size not to be affected by wind.
3.04 Tree Staking
Stake trees as per planting details. No metal wire shall circle any part of any tree.
3.05 Weed Eradication
A. Weed Eradication procedures prior to hydroseeding new areas and planting of ground cover areas infested
with bermuda grass or other weed infestations -
1 )
nfestations:1) Manually remove all existing vegetation completely (grub out roots) unless otherwise shown on the
plans and legally dispose of it off-site.
2) Fertilize all planting areas with urea 35-0-0 commercial fertilizer at the rate of .5 lbs.(12 Ib.) per
1,000 square feet.
3) Water all planting areas thoroughly to a minimum depth of 6" for a period of 2 consecutive weeks to
germinate all residual weed seeds.
4) Discontinue watering for 2 consecutive days, then apply a non-selective broad spectrum systemic
herbicide per manufacturer's specifications. No water shall be applied for a minimum of 4 days
following application of contact weed killer.
5) Allow a sufficient period of time to insure that all weeds are dead and remove.
6) Begin the hydroseeding operations or planting on all areas as specified herein.
All specified materials shall be delivered to the site in the supplier's original unopened containers bearing
proper and accurate labeling.
3.06 Hydroseeding
A. Mixing of hydroseed:
Mixing shall be performed in a tank, with a built-in continuous agitation and recirculation system of
sufficient operation capacity to produce a homogeneous slurry of fiber, M -binder, seed, fertilizer, and
water in the designated unit proportions.
Fiber 1,800 lbs. per acre
Ecology M -Binder 100 lbs. per acre
Seed (see plant legend) (see plant legend) lbs. per acre
Water 3,000 gal. per acre
'Gro -Power' organic fertilizer 1,000 lbs. per acre
With agitation system operation at part speed, water shall be added to the tank, good recirculation shall be
established. Materials shall be added in such a manner that they are uniformly blended into the mixture in
the following sequence.
When tank is 1,3 filled with water:
Add binding agent - 12 acre requirement
Add 3 - 50 Ib. bales of fiber
Add seed- 12 acre requirement
Add 'Gro -Power' -12' acre requirement
Agitate mixture at full speed when the tank is half-filled with water.
Add remainder fiber requirement before tank is 14 full, and add remainder seed, M -binder, and 'Gro -Power'
per amounts listed above. Slurry distribution should begin immediately.
Area to be hydroseeded shall be moistened to a depth of 6 inches just prior to application.
B. Application:
Hydroseed slurry shall be applied under high pressure evenly and result in a uniform coat on all areas to
be treated. Care shall be exercised to assure that plants in place are not subjected to the direct force of an
application.
Slurry shall be immediately removed from walks, pavement, structures, and ground cover areas that are
inadvertently sprayed.
All bare spots shall be reseeded by the Contractor within 15 days. The Contractor will be responsible for
all reseeded areas for as long after seeding as necessary until acceptable germination and establishment
is realized.
3.07 Watering
A. It shall be the Contractor's responsibility to maintain a balanced watering program to ensure proper growth
until final acceptance of the work.
B. Immediately after planting, apply water to each tree, shrub, or vine. Apply water in a moderate stream in
the planting hole until the material about the roots is completely saturated from the bottom of the hole to
the top of the ground.
C. Irrigation:
1) Contractor shall properly and completely maintain the irrigation system. A balanced water program
shall be maintained to ensure proper growth until final acceptance of the work. Over watering is as
unacceptable as under watering.
2) All controllers are to have each station individually adjusted on a monthly basis. System shall be set
considering the application rate each area is capable of receiving. The system shall operate on short
intervals, with the cycle repeating at a later time to reduce runoff.
3) Controller shall be programmed to operate during time of least evaporation and wind turbulence,
generally 2 am to 10 am.
3.08 Maintenance
All areas landscaped by the Contractor under this contract shall be maintained by the Contractor for a period of
not less than 90 days from the date of written acceptance for start of maintenance.
A. Start of maintenance criteria:
1) Maintenance period shall not start until all elements of the project are completed in accordance with
the contract documents.
2) Power to remote controllers shall be established prior to the beginning of the maintenance period.
3) Written acceptance by the City or County Representative must be obtained prior to the beginning of
the maintenance period.'
B. End of Maintenance:
1) On satisfactory completion of the 90 day (minimum) maintenance period, the City's or County's
Representative wil I inspect the project for final acceptance.
2) Deficiencies noted during inspection shall extend the maintenance period until all are corrected.
3) End of maintenance shall occur only on written acceptance by the City or County.
4) Pre -emergent herbicide should be applied at end of maintenance period after hydroseed completes
germination in all areas.
C. During the maintenance period, provide all watering, weeding, fertilizing,cultivation and spraying
necessary to keep the plants and turf in a healthy growing condition and to keep the planted areas neat,
edged, and attractive. All trees and shrubs shall be pruned as necessary to encourage new growth and
eliminate rank sucker growth. All pruning to be per NAA Standards. Old wilted flowers and dead foliage
shall be immediately pinched or cut off. Shrubs shall not be sheared.
D. The Contractor shall retain a Certified Arborist to inspect conditions of mature trees impacted by roadway
widening. Arborist shall make monthly report to City or County regarding condition of trees during
maintenance period.
E. After planting and during the maintenance period, in the event that trees exhibit iron chlorosis symptoms,
apply FE 138 Geigy or equivalent at manufacturer's recommended rates.
F. Should the appearance of any plant indicate weakness, that plant shall be replaced immediately with a
new healthy plant. At the end of the maintenance period, all plant materials shall be in a healthy, growing
condition and spaced as indicated on the plans.
G. Lawns (if applicable) shall be mowed and clippings removed on a weekly basis. Cut lawns at least 2 -
inches during warm seasons and reduce to 2 inches during winter or cooler season. Avoid removing more
than 1,3 of the leaf area of blade at any one time. Alternate mowing pattern to avoid rutting lawns.
H. Trim lawn edges (if applicable) adjacent to walks, curbs, paved areas, buildings, shrub and tree areas
every two weeks, or more often if needed to maintain a neat and well defined appearance.
I. Damage to planting areas shall be repaired immediately and throughout the maintenance period.
J. Remove watering basin's earth berms. Under no circumstances shall the soil be leveled in a manner that
buries the plant's crown roots.
K. Miscellaneous Maintenance Items:
1) Depressions caused by vehicles, bicycles, soil settling or foot traffic shall be filled and leveled.
Replant damaged areas.
2) Exterminate gophers and moles, and repair damage as above.
3) The Contractor shall apply 'Gro -Power' organic fertilizer at a rate of 25 pounds per 1,000 square feet,
for a minimum of 2 applications. The first application shall be between the 25th and 30th day of the
maintenance period and the second application between the 75th and 80th day.
4) Debris and trash shall be removed from the site weekly at a minimum.
5) Further herbicide applications and hand weeding will be required if major weed infestation occurs, to
be at the descretion of the City or County.
3.09 Disease and Pest Control
Throughout the maintenance period, all plants shall be maintained in a disease and pest free condition. A
licensed pest control operator shall be retained by the Contractor to recommend and apply all pesticides,
herbicides, and fungicides. All pesticides, herbicides, and fungicides must be reported to the Inspector, with
documentation stating which pest and/or fungus was treated. Report quantity of materials used in gallons or
ounces.
3.10 Clean Up
Upon completion of the work, the Contractor shall smooth all ground surfaces, remove excess materials,
rubbish, debris, etc.; sweep adjacent streets, curbs, gutters, walkways, and trails, and remove construction
equipment from the premises.
R I C H A R D
,.
77-7185 c
Landscape Architecture
Urban Design & Planning
181 N. 'E' Street, San Bernardino, CA 92401
phone: (909) 888-5568
fax: (909( 384-9854
e-mail: rpo.la@verizon.net
Richard Pope, Landscape Architect CA# 2664
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Client:
Stratham Homes, Inc.
2201 Dupont Drive, Suite 300
Irvi e, CA 92612
(949) 833-1554
Attn: Nick Kahion
Sheet Description:
Planting
Specifications
Date: MAY 29, 2002
RP*A Job No.: 02-01
Drawn by: KD SkIc
Revisions:
Sheet:
Of: 11
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Sheet Description:
Planting
Specifications
Date: MAY 29, 2002
RP*A Job No.: 02-01
Drawn by: KD SkIc
Revisions:
Sheet:
Of: 11