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 TABLE 4-2-6C
Field Investigations for New Information General
Information
Specific Information
Method and Equipment
Base Map
Property boundaries
Field survey via transit
Topography and slopes
Field survey via alidade
Surface water
Field survey via alidade
Utilities
Field survey via alidade
Roads
Field survey via alidade
Structures
Field survey via alidade
Land use
Field survey via alidade
Vegetation
Field survey via alidade
Soils
Depth
Soil boring and compilation of boring
log
Texture
Soil sampling and testing via
sedimentation methods (e.g., sieves)
Structure
Soil sampling and inspection
Bulk density
Soil sampling and testing via
gravimetric, gamma ray detection
Porosity
Calculation using volume of voids and
total volume
Permeability
Soil sampling and testing via
piezometers and lysimeters
Moisture
Soil sampling and testing via oven
drying
Ease of excavation
Test excavation with heavy equipment
Stability
Test excavation of trench and loading
of sidewall or Hveem stabilimeter
pH
Soil sampling and testing via pH
meter
Cation exchange capacity
Soil sampling and testing
Bedrock
Depth
Boring and compilation of boring log
Type
Sampling and inspection
Field survey via alidade or Brunton
Surface outcrops
Field survey via alidade or Brunton
Depth
Well installation and initial
readings
Seasonal fluctuations
Well installation and year-round
readings
4-50
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