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 Table B-1. Air Sparging with Soil Vapor Extraction Site Characteristics (Continued)
Site Name
Site Location
Soil Type
Depth to Water
Size of Site
Clean-up Level
Table
Present
Achieved
Chicago, IL
Clayey surficial
PCE, TCE, TCA, &
75% reduction in first 4
sediments followed
several other
months
by a plastic clay with
DNAPLs
a trace course
grained material
St. Martinsville, LA
Clay & silty clays;
10.5 ft
Dissolved phase
stiff clay with silt;
petroleum
clayey silts
hydrocarbons
8,000 ft2
Kenersville, NC
Unconsolidated
17.5-20 ft BG
Toluene
deposits of silty sand
& clayey silt; some
areas of fill material
2,400 2 GW
Liberty, NC
Silty & clay; silt &
4-10 ft
Acetone; 2-butanone;
1,500 ft2 soil
trace sand
Ethylbenzene;
Toluene; Xylenes
Belen, NM
Silty sand, interfering
6.5 ft
33" thick
BTEX; Benzene;
59% benzene reduction
clay layer
Toluene; Xylenes
66% toluene reduction
54% ethylbenzene
reduction
49% xylene reduction
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