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 Concurrent Technologies Corporation
Remediation Survey
Air Sparging with Soil Vapor Extraction
Page 3
3.
Vertical Extent of Site:
18 ft below ground surface
4.
Temperature Range at Site:
22 F - 85 F (58 F average)
5.
Contaminant Names and Concentrations in Ground Water (ppm):
Contaminant
Avg. Concen (mg/l)
Max. Concen (mg/l)
TPH
51
190
Benzene
1.3
4.7
Toluene
2.4
9.4
Ethylbenzene
0.78
2.7
Total xylenes
2.5
8.0
Naphthalene
0.18
0.63
6.
Contaminant Names and Concentrations in the Vadose Zone (ppm):
TPH
555
1,600
Benzene
2.0
7.8
Toluene
1.4
2.5
Ethylbenze
5.7
19
Total xylenes
37
110
III.
PILOT OR BENCH SCALE TESTS
A.
Pilot Test
Not performed (Not required with DOC System)
1.
Goals:
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:
4.
Test Vacuum and Duration:
Vacuum (psi)
Duration (hrs)
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