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 Concurrent Technologies Corporation
Remediation Survey
Air Sparging with Soil Vapor Extraction
Page 3
5.
Contaminant Names and Concentrations in Ground Water (ppm):
BTEX - up to 38 ppm in 1987; 29 ppm in 1989 at start-up of air sparging with SVE
system.
6.
Contaminant Names and Concentrations in the Vadose Zone (ppm):
Non-detectable
III.
PILOT OR BENCH SCALE TESTS
A.
Pilot Test
1.
Goals:
Determine the design parameters.
2.
Wells
a.
Purpose (e.g., injection, extraction, or monitoring):
Injection
b.
Pipe Type:
c.
Pipe Diameter:
d.
Depth:
e.
Screen Interval:
18-20 ft. below grade
f.
Screen Type:
g.
Number and Spacing:
2 test air injection wells approx. 40 ft. apart;
3 monitoring points
3.
Air Sparge Pumping Rate: 100 cfm extraction; 10-20 cfm injection
4.
Test Vacuum and Duration:
Vacuum (psi)
Duration (hrs)
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