APPENDIX A
Cost and Performance Factors
The following table details matrix characteristics that may affect cost and performance of the
AS/SVE system.
MATRIX CHARACTERISTICS
Parameter
Site Condition
Sandy gravel to sandy silty gravel
Soil Classification
(see Table A-3)
Stratigraphic units range from well sorted to
Particle Size Distribution
unsorted (see Table A-3)
Moisture Content
9 - 12 %
1.6 x 10-7c m2 (calculated using field
Air Permeability
measurements and steady state equation)
232 darcies (sieve analysis)
Hydraulic conductivity
370 darcies (computer modeling)
Effective Porosity
30%
580 -17,000 ppb
Total Organic Carbon
(as measured during the pilot study)
The following table details operating parameters of the AS/SVE system.
OPERATING PARAMETERS
Operating Parameter
Value and Units
Soil Vapor Extraction System
Air flow rate
440 - 1290 scfm
Operating vacuum
5-inches mercury vacuum at blower inlet
Operating time
Continuous
Temperature
85 155F
Air Sparging System
Air flow rate
60 - 210 scfm
7 pounds per square inch (psi) (design
Operating pressure
value)
Operating time
Cyclical
A-1
Ft. Griffey Landfill 5 OU Interim RA Report
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