Modeling Subsurface Petroleum Hydrocarbon Transport
Home
Previous <
Next >
(This html file is produced automatically by HSSM. The file can be used as a pre-formatted report.)
|
The Hydrocarbon Spill Screening Model
Tabular input data from C:\hssm150\testm.hdt
|
|
Run Identification
|
| Run Title |
Benzene transport from a 1500 gallon release |
| Site Name |
x |
| NAPL Name |
MTBE-Gasoline |
| Chemical Name |
MTBE |
| Run Date |
1999 Mar 29 - 19:24:6 |
| User Name |
Jim Weaver |
| Company Name |
U.S. EPA |
|
Aquifer Parameters
|
| Aquifer conductivity |
10 |
ft/d |
Measured |
MEG p-test average |
| Aquifer porosity |
0.3 |
* |
Literature |
Literature value |
| Aquifer thickness |
50 |
ft |
Literature |
Average from McClymonds & Franke |
| Gradient |
0.001 |
ft/ft |
Measured |
Grosser WT Map |
| Fraction organic carbon |
0.001 |
* |
Database |
HSSM Database value |
| Flow Angle |
0 |
deg |
Measured |
Angle of flow |
| Dispersivities |
| Longitudinal dispersivity |
17.92799 |
ft |
Formula |
Xu and Eckstien Formula |
| Transverse dispersivity |
1.792799 |
ft |
Formula |
Xu and Eckstien Formula |
| Vertical dispersivity |
0.1792799 |
ft |
Formula |
Xu and Eckstien Formula |
Vadose Zone--soil type: B-Sand
|
| Vadose conductivity |
10 |
ft/d |
Measured |
1/10th MEG p-test |
| Vadose Porosity |
0.3 |
* |
Literature |
Value obtained from the literature |
| Recharge rate |
10 |
in/yr |
Literature |
Value obtained from the literature |
| Depth to water |
15 |
ft |
Measured |
Field measurement |
| Smear zone thickness |
3 |
ft |
Measured |
Measured value |
| Capillary Parameters |
| Lambda |
0.573 |
* |
Database |
HSSM database value |
| Air Entry Head |
35.5 |
cm |
Database |
HSSM database value |
| Residual water saturation |
0.048 |
* |
Database |
HSSM database value |
NAPL Phase: MTBE-Gasoline
|
| Gasoline density |
0.88 |
g/ml |
Database |
HSSM database value |
| Gasoline viscosity |
0.45 |
cP |
Database |
HSSM database value |
| Gasoline surface tension |
35 |
dyne/cm |
Database |
HSSM database value |
| Vadose residual saturation |
0.05 |
* |
Database |
Database value |
| Aquifer residual saturation |
0.15 |
* |
Database |
Database value |
| NAPL lens saturation |
0.3 |
* |
Formula |
Calculated from NTHICK |
Contaminant: MTBE
|
| Contaminant mass fraction |
0.14 |
* |
Database |
HSSM Database value |
| NAPL/water partition coefficient |
15 |
* |
Database |
HSSM Database value |
| Organic carbon partition coefficient |
11 |
* |
Database |
HSSM Database value |
| Half life |
700 |
days |
Nearby |
From a similar site |
Release
|
| Source area |
200 |
ft^2 |
Estimate |
Estimate of source radius |
| X Coordinate of source |
0 |
ft |
Measured |
Tank pit location |
| Y coordinate of source |
0 |
ft |
Measured |
Tank pit location |
| NAPL Release |
| NAPL volume |
1500 |
gal |
User |
User value |
|
Color Legend
|
| |
|
| User |
Database |
Formula |
Estimate |
| Measured |
Calibrated |
Literature |
Nearby Site |
|
Default/HSSM output units
|
| Length |
feet |
| Volume |
gallons |
| Flux |
ft/d |
| Time |
dates |
| Hydraulic Conductivity |
ft/d |
| Recharge |
in/yr |
| Concentration |
mg/L |
| This unit set was used as the default unit set for creating the HSSM version 1.50 input data set. The units used for any of the above parameters may have been changed, however, to any allowable unit (indicated on data entry screens). The default units continue to be used by HSSM for the model output. |
|
Input Narrative
Model Results
This page was created automatically by HSSM Version 1.50
March 30,1999 13:14:19
|
