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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:
interbedded silly sand & poorly graded fine gravel
2.
Unified Soil Classification: SM/GP
3.
Gradation/Sieve Analysis: No data
4.
Moisture Content:
No data
5.
Air Permeability: No data
6.
Porosity:
20-35%
7.
Depth to Water Table:
5 to 11 feet (aquifer thickness 7-13 ft)
8.
Diffusivity:
No data
B.
Saturated Zone
Aquifer 1
1.
Soil Type:
interbedded silty sand & poorly graded fine gravel
underlain by a silty clay aquitard at a depth of
approximately 18 ft below ground surface
2.
Unified Soil Classification:
3.
Hydraulic Conductivity:
190 ft/day
4.
Transmissivity:
5.
Hydraulic Gradient:
0.004 R/D
6.
Porosity:
20-35%
7.
Aquifer Type:
Unconfined
8.
Capillary Fringe Height:
No data
C.
Contaminants Present
1.
Source of Contamination (e.g., gasoline spill):
Diesel & gasoline fuel
underground storage tank leaks
Horizontal Extent of Site: 30,000 ft2
2.
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