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APR 2 E 1986RBmwning Osreeves 207/DG/86/04/23-PSell-DGoode r/f-
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MKnapp GRoles a
e te JForstrom MEMORANDUM FOR:
Robert E. Alexander, RES e
Faith N. Brenneman, NRR DHarman, RES Frank A. Costanzi, RES Richard E. Cunningham, FC FROM:
Robert E. Browning, Director Division of Waste Management, NMSS
SUBJECT:
TECHNICAL CAPAF,ILITY FOR RADI0 ACTIVE WASTE BELOW REGULATORY CONCERN As'you are aware Section 10 of the Low. Level Radioactive Waste Policy
-Amendments Act of 1985 requires the Commission to establish, in 6 months, the-c technical cepability to expeditiously deal with petitions for Below Regulatory Concern (BRC) rulemaking. This memo describes the availability of a technical capability for evaluating such petitions.
The BP.C methodology has been developed from-the "De Minimis Waste Impacts Analysis Methodology" report (NUREG/CR 3585) authored by 0.I. Ortunali and G.W. Roles (WMEG, NMSS). The IMPACTS-BRC computer program, and associated-environmental and facility datasets, allows the estimation of dose equivalent impacts from transportation, treatment, and disposal of BRC waste streams.
4 The treatment / disposal options and general capabilities of IMPACTS.BRC are outlined in the enclosed table.
~
The implementation of IMPACTS.BRC on an IBM.PC microcomputer is described in enclosure 2.
It is anticipated that the program and default datasets will be supplied to potential petitioners on computer diskettes. This system development is being coordinated with ADP staff. A User's Guide for IMPACTS-BRC is currently under development and a first draft will be available l
within two months..A copy of the draft outline is enclosed.
l lL
. M staff are currently available to support application of this technical' W
l' capability to actual petitions, although only minimal' staff effort is currently budgeted in this area.
Resources to support application by WM staff after NRC's policy is final and published are included in the'FY87 budget.
In the interim, WM staff can provide guidance for applict. tion of the program.
Please contact Dan Goode (x7 4524) if you have any questions regarding IMPACTS.BRC and its application.
Originni Sigr.ed by.
MICWJL J. EM '
obert E. Browning, Director f
Division of Waste Management, NMSS
Enclosures:
1.
Table listing IMPACTS.BRC capabilities H
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Implementation of IMPACTS-BRC on IBM.PC 3.
Oraft outline of IMPACTS-BRC User's Guide
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JATE :86/04/28.
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1y L-BRC OUTLINE l-
- 1. Disposal Options A..Onsite L
incineration and ash disposal offsite l'
B.
Offsite
-sanitary landfill (or to treatment facility first), sorting g
l municipal waste incinerator, then sanitary landfill hazardous waste landfill
. hazardous waste. incinerator, then hazardous waste landfill II. Waste Characteristics A.
Radionuclides - 85 from DeMinimis B.
Waste properties from DeMinimis (no liquid disposal)
L dispersivity, accessibility unpackaged, metal containers, other containers ll composition (percent combustible, metal, glass, other)
C.
Volumes etc.
III. Site characteristics L
one reference facility for maximum individual calculations, l
conservative site characteristics L
three regional reference facilities (NE, SE, SW) for critical l
population and cumulative impacts t
- A.
Independent of disposal / treatment scenario Intruder. construction and agriculture groundwater dilution, retardation coef., no dispersion i
I airborne transport to population, mobilization rates exposed waste i
i transportation and accident factors-l B.
Dependent on disposal / treatment scenario
- groundwater travel times (based on disposal in. unsaturated zone only) percolation into disposal unit l
IV. Impacts i
A.-
Onsite (impacts due to incineration and handling only, not disposal) maximum individual population j
B.
Offsite maximum worker, critical worker group (transportation, operations) maximum individual at nearby well and surface water receptor general population intruders (construction, agriculture) i 4
5
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DANG BRC FLOW CHART 86/04/14 7 1
IBM-PC IMPLEMENTA110N DF IMPACTS-BRC COMPUTER CODE The IMPACTS-BRC FDRTRAN program calculates impacts (radiological doses) from i
incineration and disposal of very low-level radioactive waste. These impacts are used to support rulemaking on petitions to allow treatment and disposal of E
specific waste streams at non-licensed facilities. The program runs in a batch i
mode using three input data files and generating two output data files. The program is written in IBM-PC FORTRAN and runs on 640K IBM-PC compatible i
computers.
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STEP 1.
CDNSTRUCT TAPES.DAT This step is required, unless a run is being repeated with no changes.
TAPES.DAT contains the run options and waste stream characteristics of the BRC waste. An example of this file is on the supplied diskette. A new TAPES.DAT 1
can be created either by editing the existing file, or by building a new file from scratch.
In either case, a file editing program, such as EDLIN supplied with IBM-DDS, is used to change or enter data. A recommended practice is to build a file with a different name, such as T5_ CASE 1.DAT, and copy this file to TAPES.DAT using the DDS CDPY command.
In this way, several diff~erent cases can be considered without having to re enter the data for TAPES each time. Also, any run errors will not affect the original copy, in this case TS_ CASE 1.DAT.
TAPES.DAT should reside on the same diskette as IMPACTS.EXE, the executable
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module.
For hard-disk systems, TAPES.DAT should be in the same subdirectory.
1 STEP 2.
EDIT TAPE 1.DAT AND TAPE 2.DAT
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This step is optional. TAPE 1.DAT contains nuclide specific data such as decay rates and groundwater transport retardation coefficients. TAPE 2.DAT contains environmental and facility specific parameters such as incinerator volumes and air dispersion factors. Default versions of these two files are on the supplied diskette.
Changes can be made to these files using any editor, such as EDLIN. As above, it is recommended that alternative files not be named TAPEl(2).DAT to minimize re-entering of data. These files should be located as described above fbr TAPE 5.DAT.
STEP 3.
CREATE TAPE 6.0cT AND TAPE 10.0VT This step is required only if these files do not already exist. When IMPACTS-BRC runs, it erases tbsse files and writes the new output.
If the program has not been run, or if these files were deleted, they must be created.
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'k DANG BRC FLOW CHART 86/04/14 "
t 2-1 To create a file, an editor, such as EDLIN, should be used to enter a line of dummy data. This line of data does not affect the running of IMPACTS-BRC and will be written over. As above, these files should be properly located on the diskette or subdirectory with the executable module, IMPACTS.EXE.
STEP 4.
RUN IMPACTS.EXE This step is required. Before running the program, be sure that the diskette with the executable module and data files, and output files, is in the default drive. The default drive is changed by typing the drive name
- b: (CR)",
where (CR) is the carriage return or enter key. After this command, the system prompt should be "B>".
Of course, if the A (left) drive is used; the system prompt should be "A>".
For hard disk systems, the subdirectory should be changed to the one containing the executable module, data files, and output l
files.
For example, if these files are in the IMPACTS subdirectory, the following command is typed "cd\\ impacts (CR)". These changes do not normally have to be made at this point because the previous operation was probably editing one of the input files, j
The program is run by typing the name of the executable module ('it is not necessary to include the.EXE extension)
" impacts (CR)". Run times for the i
program vary depending on the number and size of the waste streams considered.
Typical run times are en the order of 5 minutes.
If the program runs without error, the following message is displayed
" NORMAL TERMINATION", followed by the system prompt.
Run errors, usually asseciated with incorrect input in TAPE 5.DAT, are displayed when the program does not run as expected.
In this case, return to STEP 1.
STEP 5 can be performed to help diagnose errors.
STEP 5.
PRINT OUTPUT AND INPUT FILES The following command is entered to print the results of the run
" print L
tape 6 out tape 10.out tape 5.dat (CR)".
TAPE 6,0VT contains doses for each pathway for the entire waste stream. TAPE 10.0VT contains most individual ICRP doses for each nuclide in the waste stream. TAPES.DAT is printed to document the input data. Normally, TAPE 1.DAT and TAPE 2.DAT are not printed because the default data files are used. However, if non-default versions of these files are used, they should also be specified in the print command.
The PRINT command, located on the main directory for hard-disk systems, will prompt for the printer location information. On most systems, tt.e default
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4 DANG BRC FLOW CHART 86/04/14 i
(PRN) is used, and is specified by entering (CR).
For hard-disk systems, the path should be set as "PATHK (CR)" so that the PRINT command can be found.
Otherwise, a " Bad Comand or File Name" message will be printed.
The following is a hardcopy of comsnds and computer responses during application of IMPACTS-BRC on an IBM-PC XT with hard-disk:
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DIWY FOR
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1 CALI OBJ 1915 3-28-86 3:11p
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T5_4APR DAT 3805 4-04-86 2:13p 2 25p,,
DIVVY OBJ
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UTILS FOR
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READS FOR 2944 4-01-86 2:16p i
OPSIMP FOR 4749 4-10-86 3:49p LIST 1 SAT 125 4-11-06 SI3ta
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TAPE DAT 3572 4-08-86 1:14p i
N!585T1 DAT 59404 B-06-84 7:30p N;585T2 DAT 3570.10-30-84 12814p
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N!585T5 DAT 3805 1-01-80 1:12a T5_WOIL DAT 2585 4-14-06 5:16p TAPE 5 DAT 0585 4-14-06 5:16p
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l:f DANG BRC USER GUIDE 86/04/22
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4 IMPACTS BRC USER'S GUIDE METHODOLOGY FOR RADIDACTIVE WASTES BELOW REGULATORY CONCERN 1.
INTRODUCTION AND
SUMMARY
PART I - USER'S GUIDE FOR IMPACTS BRC 2.
DVERVIEW 3.
DESCRIPTION OF INPUT DECKS AND MODIFICATION PROCEDURES 4
PROCEDURES TO RUN IMPACTS-BRC 4.1 Computer requirements 4.? Preparation of Tapes 4.3 Implementation procedures S.
EXAMPLE PROBLEM - WASTE Olt PART !! - MODIFICATIONS TO DEMINIMis METHODOLOGY FOR BRC 6.
MODIFICATIONS TO SOURCE CODE FOR IBM PC COMPATIBILITY 6.1 1/0 modifications 6.2 Compiler comands 7.
CALCULATIONAL MODIFICATIONS TO SOURCE CODE 7.1 Deletion of aroundwater dispersion calculation 7.2 Nuclide specific accounting 8.
MODIFICATIONS TO DEFAULT INPUT DECKS 8.1 Default environmental parameters for maximum individual impacts 8.2 Retardation coefficients 8.3 ' Contact time fraction 8.4 Groundwater travel times 8.5 Carbon-14 release fraction 8.6 Facility disposal volumes 8.7 Peclet numbers 9.
BIBLIDGRAPHY APPENDICES A.
Description of supplied computer disk B.
IMPACTS-BRC source code C.
Tapel - Nuclide specific data D.
Tape 2 - Environmental and facility parameters E.-
Example Tapes - Options and Waste Stream characteristics F.
Example Tape 6 - Output G.
Example Tape 10 - Output
.