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Concurrent Technologies Corporation
Remediation Survey
Air Sparging with Soil Vapor Extraction
Page 3
4.
Temperature Range at Site:
High 64.6 F (July); Low 39.1 F (January)
5.
Contaminant Names and Concentrations in Ground Water (ppm):
TCE
0.0340.150
DCE
0.012
VC
0.0048
5a.
Retardation Factors
TCE = 3
6.
Contaminant Names and Concentrations in the Vadose Zone (ppm):
III.
PILOT OR BENCH SCALE TESTS
A.
Pilot Test
1.
Goals:
Test upper portion of upper aquifer
2.
Wells
a.
Purpose (e.g., injection, extraction, or monitoring):
b.
Pipe Type:
c.
Pipe Diameter:
d.
Depth:
e.
Screen Interval:
f.
Screen Type:
g.
Number and Spacing:
3.
Air Sparge Pumping Rate:
Injected gas: 8 psi at 150 F
Rate: 36 cfm
42 cfm entering vadose zone (calculated)
4.
Test Vacuum and Duration:
Duration (hrs)
Vacuum (psi)
Extraction rate: 110 cfm





 


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