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Concurrent Technologies Corporation
Remediation Survey
Air Sparging with Soil Vapor Extraction
Page 2
II.
SITE CHARACTERISTICS
A.
Vadose Zone
1.
Soil Type:
Coarse sand and gravel
2.
Unified Soil Classification:
3.
Gradation/Sieve Analysis:
4.
Moisture Content:
High (estimate 37 darcies vertical and 370 darcies
5.
Air Permeablity:
horizontal)
6.
Porosity:
High
7.
Depth to Water Table:
40 feet
8.
Diffusivity:
B.
Saturated Zone
Aquifer 1
1.
Soil Type:
Sand-gravel
2.
Unified Soil Classification:
3.
Hydraulic Conductivity:
700 ft/day
4.
Transmissivity:
5.
Hydraulic Gradient:
0.0015 ft/ft
6.
Porosity:
Assumed effective and total = 30%
7.
Aquifer Type:
Unconfined
8.
Capillary Fringe Height:
9.
Thickness
120 feet
10.
Groundwater velocity:
3.5 ft/day
C.
Contaminants Present
1.
Source of Contamination (e.g., gasoline spill):
2.
Horizontal Extent of Site: 300 ft diameter
3.
Vertical Extent of Site:





 


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