1.4
QUALITY ASSURANCE
1.4.1
State Landscape Contractor's License & Tree Relocation References
Contractor shall be a professional tree moving company holding a landscape
contractor's license in the state where the work is to be performed and
have a minimum of 10 years tree relocation experience. Submit a copy of
license and 3 references of tree relocation work in the past 5 years.
1.4.2
Permits
The Contractor shall obtain and pay for permits and fees for the alteration
of overhead lines or any other related moving permit or fee that requires
compliance with Federal, State and local regulatory requirements.
1.4.3
Photographs
The contractor shall provide a clear 4 inch by 6 inch100 mm by 150 mm
minimum size color photograph of the plant material to be relocated. Trees
shall be documented by an individual photograph of each. Photographs shall
indicate the date and species of each plant on the back or front of each
photo.
1.4.4
Transplanting Plan
A transplanting plan shall be submitted showing existing and proposed
locations of transplanted material. The plan shall also delineate methods
and times for root pruning, digging, balling, removing, storing,
transporting, planting, watering, and maintenance to ensure survivability.
The plan shall also include equipment, anti-desiccant and pesticides to be
used. A listing of the plant material to be transplanted shall be provided
by common name and botanical name as listed under "Nomenclature" in ANSI
Z60.1; classification; caliper; and height.
1.4.5
Soil Test
Commercial test from an independent testing laboratory according to the
Organic Carbon, 6A, Chemical Analysis Method described in DOA SSIR 42
including basic soil groups (sand, silt, clay, pH (ASTM D 4972), soluable
salts), secondary nutrient groups (calcium, magnesium, sodium, Sodium
Absorption Ratio (SAR)), micronutrients (zinc, manganese, iron, copper).
Soil required for each test shall include a maximum depth of 450 mm18 inches
of approximately 1 liter1 quart volume for each test. Areas sampled
should not be larger than 0.4 hectare1 acre and should contain at least 6-8
cores for each sample area and be thoroughly mixed. Problem areas should
be sampled separately and compared with samples taken from adjacent
non-problem areas. The location of the sample areas should be noted and
marked on a parcel or planting map for future reference.
1.4.6
Percolation Test
Immediately following rough grading operation, identify a typical location
for one of the largest trees and or shrubs and excavate a pit per the
project details. Fill the pit with water to a depth of 300 mm12 inches.
The length of time required for the water to percolate into the soil,
leaving the pit empty, shall be measured by the project Landscape Architect
and verified by the Contracting Officer. Within six hours of the time the
water has drained from the pit, the Contractor, with the Contracting
Officer and project Landscape Architect present, shall again fill the pit
SECTION 02915
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