Main Title |
Review of the CANSAZ flow and transport model for use in EPACMS [electronic resource]. |
Publisher |
United States Environmental Protection Agency, Office of the Administrator, Science Advisory Board, |
Year Published |
1990 |
Report Number |
EPA-SAB-EEC-90-009 |
Stock Number |
PB2009-109923 |
Subjects |
Research ;
Surface impoundments ;
Refuse and refuse disposal
|
Additional Subjects |
Water flow ;
Saturated zones ;
Simulations ;
Mathematical formulations ;
Physical assumptions ;
Monte Carlo method ;
Monte Carlo imputs ;
Model validation ;
Uses ;
Transport models ;
Saturated Zone Model Subcommittee ;
EPACMS (the EPA Composite Model for Surface Impoundments) ;
CANSAZ (Combined Analytical-Numerical Saturated Zone) flow
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB2009-109923 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
1 online resource (34 p.) : digital, PDF file. |
Abstract |
The Saturated Zone Model Subcommittee of the Environmental Engineering Committee of the EPA Science Advisory Board (SAB) has prepared a report on the Agency's CANSAZ (Combined Analytical-Numerical Saturated Zone) flow and transport model for use in EPACMS (the EPA Composite Model for Surface Impoundments). The Subcommittee examined the appropriateness of the assumptions underlying CANSAZ for use in a nationwide Monte Carlo assessment, as well as the adequacy of the code for simulating conditions beneath surface impoundments. Specifically, the Subcommittee evaluated five topics which were (1) proper mathematical formulation, (2) adequacy of physical assumptions, (3) adequacy of the Monte Carlo approach, (4) adequacy of field testing of the model, and (5) the overall modeling approach. While the mathematical equations and the numerical solution methods are properly formulated and solved, the Subcommittee suggests improvements to the physical assumptions, improvements to the current input data-set documentation and validation, and improvements needed to validate the EPACMS model for use in either a site-specific evaluation or a nationwide assessment. The Subcommittee highly prefers site-specific evaluation, but recommendations are made to improve the assessment should the Agency choose to utilize the nationwide Monte Carlo approach. These suggestions are to incorporate regional variations in the assessment, explicitly ban the disposal of delisted wastes in extreme hydrogeologic settings, and provide a mechanism for all constituents in a waste to be evaluated in a listing or delisting decision. |
Notes |
Title from title screen (viewed on 3/7/12) |
Place Published |
Washington, D.C. |
Availability Notes |
Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
Access Notes |
Mode of access: World Wide Web.; System requirements: Adobe Acrobat Reader. |
Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of the Administrator. |
PUB Date Free Form |
Mar 1990 |
Category Codes |
77G; 48G |
NTIS Prices |
PC A04/MF A04 |
BIB Level |
m |
Medium |
electronic resource. |
Cataloging Source |
OCLC/T |
Control Number |
018801020 |
OCLC Time Stamp |
20120307054734 |
Language |
eng |
Origin |
NTIS |
Type |
MERGE |
OCLC Rec Leader |
01211nam 2200301Ka 45020 |