Biomedical Engineering Reference
In-Depth Information
Table 11.1. Description of Template Site Cases
Parameter
Case 1
Case 2
Case 3
Location
Source Area
Plume
Plume
Area (m
2
)
250
-
-
Width (m)
-
75
75
Depth to Groundwater (m)
1.5
1.5
3.0
Depth to Aquitard (m)
4.5
4.5
12.0
Saturated Thickness (m)
3.0
3.0
9.0
1 10
4
1 10
4
1 10
4
Hydraulic Conductivity (cm/s)
10
3
10
3
10
3
Groundwater Gradient (m/m)
3
3
9
Groundwater Velocity (m/year)
10
10
30
Porosity
0.3
0.3
0.3
Effective Porosity
0.2
0.2
0.2
Injection Rate (L/min)
10
10
10
EVO
a
Adsorption (g/kg solids)
1
1
1
Residual TCE (kg)
200
-
-
Groundwater concentrations (mg/L)
TCE
20
0.1
0.1
cis-DCE
20
2.0
2.0
VC
-
0.2
0.2
Dissolved Oxygen
-
-
-
Nitrate
-
-
-
Dissolved Iron
5
5
5
Sulfate
100
100
100
a
EVO - emulsified vegetable oil
clay aquitard that underlies the saturated zone, providing a saturated thickness of 3 m (9.8 ft).
The groundwater velocity across this area is 10 m (32.8 ft) per year. The groundwater in this
area contains 20 mg/L of both TCE and
cis
-dichloroethene (
cis
-DCE), along with 5 mg/L
dissolved iron and 100 mg/L sulfate. These and other characteristics of the subsurface matrix
and groundwater are summarized in Table
11.1
for all three cases considered.
Characteristics of the template sites for Case 2 and Case 3 also are presented in Table
11.1
.
Case 2 consists of a plume that extends off-site. The width of the plume at the site boundary is
75 m (246 ft). The depth to groundwater is 1.5 m (4.9 ft), and it is 4.5 m (14.8 ft) to a clay
aquitard that underlies the saturated zone, providing a saturated thickness of 3.0 m (9.8 ft). The
groundwater velocity across this area is 10 m (32.8 ft) per year. The groundwater in this area
contains 0.1 mg/L of TCE, 2 mg/L
cis
-DCE, and 0.2 mg/L VC, along with 5 mg/L dissolved iron
and 100 mg/L sulfate.
Case 3 consists of a plume of similar width that also extends off-site. In this case the depth
to groundwater is 3 m (9.8 ft), and it is 12 m (39.4 ft) to a clay aquitard that underlies the
saturated zone, providing a saturated thickness of 9 m (29.5 ft). The groundwater velocity
across this area is 30 m (98.4 ft) per year. The groundwater in this area contains 0.1 mg/L of
TCE, 2 mg/L
cis
-DCE and 0.2 mg/L VC, along with 5 mg/L dissolved iron and 100 mg/L sulfate.
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