Form Approved
REPORT DOCUMENTATION PAGE
OMB No. 0704-0188
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1. AGENCY USE ONLY (Leave blank)
2. REPORT DATE
3. REPORT TYPE AND DATES COVERED
May 1996
4. TITLE AND SUBTITLE
5. FUNDING NUMBERS
Evaluating the SESOIL Model for Benzene Leaching Assessment in Alaska
6. AUTHORS
Gurdarshan S. Brar
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
8. PERFORMING ORGANIZATION
REPORT NUMBER
U.S. Army Cold Regions Research and Engineering Laboratory
72 Lyme Road
Special Report 96-11
Hanover, New Hampshire 03755-1290
9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)
10. SPONSORING/MONITORING
AGENCY REPORT NUMBER
11. SUPPLEMENTARY NOTES
For conversion of SI units to non-SI units of measurement consult Standard Practice for Use of the International System of Units (SI),
ASTM Standard E380-93, published by the American Society for Testing and Materials, 1916 Race St., Philadelphia, Pa. 19103.
12a. DISTRIBUTION/AVAILABILITY STATEMENT
12b. DISTRIBUTION CODE
Approved for public release; distribution is unlimited.
Available from NTIS, Springfield, Virginia 22161.
13. ABSTRACT (Maximum 200 words)
SESOIL is a seasonal soil compartment model. A one-dimensional vertical transport model is designed to predict
seasonal solute distribution in the soil profile and watershed. CRREL received a request from the U.S. Army
Engineer District, Alaska, Environmental Technical Engineering Office, to provide technical assistance in eval-
uating the SESOIL model for helping to assess benzene leaching in the Alaskan environment. The major tasks
outlined in the request were as follows: work an example problem for a diesel-contaminated site, do analytical
checks and do manual SESOIL analytical calculations for one cycle. The SESOIL model requires 57 input vari-
ables supplied by the user. An additional 8 parameters are required for the execution file. This study did sensi-
tivity analyses on soil bulk density, intrinsic permeability, disconnectedness index, porosity, organic carbon,
adsorption coefficient on organic carbon, and biodegradation rates of solid and liquid phases. The model is
very sensitive to all the parameters studied. Despite its several difficulties, the model is popular among regula-
tors and users because of its simplicity compared to research models. It can be used as a screening-level tool in
assessing chemical movement in the soil column with considerable site-specific calibrations.
14. SUBJECT TERMS
15. NUMBER OF PAGES
14
Alaska
Leachate assessment
SESOIL
16. PRICE CODE
Benzene
Soil
17. SECURITY CLASSIFICATION
18. SECURITY CLASSIFICATION
19. SECURITY CLASSIFICATION
20. LIMITATION OF ABSTRACT
OF REPORT
OF THIS PAGE
OF ABSTRACT
UNCLASSIFIED
UNCLASSIFIED
UNCLASSIFIED
UL
Standard Form 298 (Rev. 2-89)
NSN 7540-01-280-5500
Prescribed by ANSI Std. Z39-18
298-102
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