United States Office of Research and EPA/540/R-92/006
Environmental Protection Development September 1991
Agency Washington, DC 20460
&EPA PREscore Software
Users Manual & Tutorial
Version 1.0
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EPA/540/R-92/006
Publication 9345.1-04
September 1991
PREscore Software
USERS MANUAL & TUTORIAL
VERSION 1.0
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
Office of Solid Waste and Emergency Response
Office of Emergency and Remedial Response
Hazardous Site Evaluation Division
Washington, DC 20460
Printed on Recycled Paper
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NOTICE
The procedures set forth here are intended as guidance to employees
of the U.S. Environmental Protection Agency (EPA), States, and other
government agencies. EPA officials may decide to follow the guidance
provided in this directive, or to act at variance with it, based on
analysis of site specific circumstances. EPA reserves the right to
modify this guidance at any time without public notice.
These guidelines do not constitute EPA rulemaking and cannot be relied
on to create any rights enforceable by any party in litigation with the
United States.
Mention of company or product names in this document should not be
considered as an endorsement by EPA.
The PREscore software package will be updated periodically. Updating
may include modifications to the PREscore and PREprint programs and
the users manual. At a minimum, updating will involve the
modification of information contained in the PREscore program's
hazardous substance information file.
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CONTENTS
CHAPTER 1 GETTING STARTED
1.1 Introduction: PREscore Software Package 1
1.2 PREscore Computer Program 1
1.3 Users Manual & Tutorial 2
1.4 Hardware Requirements 2
1.5 Software Installation 3
1.6 File Management 3
CHAPTER 2 TUTORIAL
2.1 Introduction: PREscore Computer Program 5
2.2 File System 7
2.3 General Operation 8
2.3.1 Documentation Feature 14
2.3.2 NPL Characteristics Data Collection Form 17
2.3.3 Exiting and Saving Site Files 18
2.4 Waste Characteristics 20
2.5 Ground Water Pathway 29
2.6 Surface Water Pathway 38
2.6.1 Drinking Water Threat Targets 41
2.6.2 Human Food Chain Threat Targets 43
2.6.3 Environmental Threat Targets 44
2.6.4 Ground Water to Surface Water Component 44
2.7 Soil Exposure Pathway 47
2.7.1 Resident Population Threat 47
2.7.2 Nearby Population Threat 50
2.8 Air Pathway 52
2.9 Radionuclides 57
2.10 Conclusion 62
CHAPTER 3 PRINTING
3.1 Introduction: PREprint Computer Program 63
3.2 Printer Setup and Print Options 64
INDEX 71
APPENDIX A: PREscore Scoring Limitations A-1
APPENDIX B: Updating Site Files B-1
APPENDIX C: Network (LAN) User Instructions C-1
APPENDIX D: PREscore Software Files/Diskette D-1
in
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FIGURES
1. PREscore Title Screen 5
2. General Information Screen 6
3. File System Screen 7
4. Summary Screen 8
5. Air Pathway Targets Screen 9
6. Air Pathway Target Population Screen 10
7. Air Pathway Target Population Help Screen 10
8. Air Pathway Samples Screen 11
9. Air Pathway Sample Contaminants Screen 12
10. Hazardous Substance Listing Screen 12
11. Air Pathway Sample Contaminants Screen: With Example 13
12. Air Pathway Samples Screen: With Example 14
13. Documentation Editor Screen 15
14. Reference List 16
15. Summary Screen 17
16. NPL Characteristics Data Collection Form 18
17. PREscore Save/Exit Pop-Up Menu 19
18. Save File Option Pop-Up Menu 19
19. Waste Characteristics Sources Screen 20
20. Source Containment Screen 21
21. Source Containment Screen: Ground Water Containment Pop-Up Menu 22
22. Source Containment Screen: Ground Water Containment Help Screen 22
23. Source Information Screen 23
24. Source Contaminant Selection Screen 24
25. Source Contaminant Selection Screen: With Example 25
26. Source Hazardous Waste Quantity Wastestreams/Constituents Screen 26
27. Source Hazardous Waste Quantity Constituents Screen 27
28. Source Hazardous Waste Quantity Wastestreams/Constituents Screen: With Example . . 28
29. Aquifer Selection Screen 29
30. Ground Water Pathway Likelihood of Release Screen 30
31. Ground Water Pathway Potential to Release Screen 31
32. Hydraulic Conductivity Factor Help Screen 32
33. Ground Water Pathway Targets Screen 33
34. Ground Water Pathway Target Population Screen 34
35. Ground Water Pathway Target Population Screen: Well Type Pop-Up Menu 35
36. Ground Water Pathway Sample Contaminants Screen 35
37. Ground Water Pathway Target Population Screen: With Example 36
38. Ground Water Pathway Targets Screen: Resources Factor Pop-Up Menu 37
39. Ground Water Pathway Targets Screen: Wellhead Protection Area Factor Pop-Up Menu . 38
40. Surface Water Pathway Likelihood of Release Screen 39
41. Watershed Description Screen 39
42. Surface Water Pathway Samples Screen 40
43. Surface Water Pathway Sample Contaminants Screen 41
44. Surface Water Pathway Drinking Water Threat Targets Screen 42
45. Surface Water Pathway Drinking Water Threat Target Population Screen 42
46. Surface Water Pathway Human Food Chain Threat Targets Screen 43
47. Surface Water Pathway Environmental Threat Targets Screen 44
48. Summary Screen: Surface Water Pathway Components Toggle 45
49. Ground Water Pathway Likelihood of Release Screen: Surficial Aquifer 45
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FIGURES (concluded)
50. Watershed Description Screen: Ground Water to Surface Water Component 46
51. Soil Exposure Pathway Resident Population Threat Screen 47
52. Soil Exposure Pathway Likelihood of Exposure Screen 48
53. Soil Exposure Pathway Resident Population Threat/Terrestrial Sensitive
Environment Targets Screen 49
54. Soil Exposure Pathway Resident Population Threat Screen: With Example 50
55. Soil Exposure Pathway Nearby Population Threat Screen 51
56. Air Pathway Likelihood of Release Screen 52
57. Air Pathway Gas Potential to Release Screen 53
58. Air Pathway Containment Screen 54
59. Air Pathway Targets Screen 55
60. Air Pathway Sensitive Environment Targets Screen 55
61. Air Pathway Samples Screen 56
62. Source Information Screen: Source Type Pop-Up Menu 57
63. Source Information Screen: With Example 58
64. Source Radionuclide Screen 59
65. Radionuclide Selection Screen 59
66. Source Hazardous Waste Quantity Radionuclide Wastestream Screen 60
67. Waste Characteristics Sources Screen: With Example 61
68. Air Pathway Sample Contaminants Screen: Radionuclides 62
69. PREprint File System Screen 63
70. PREprint Menu Screen 64
71. Printer Selection Pop-Up Menu 65
72. Printer Options - Set Graphics Mode Pop-Up Menu 66
73. Printer Options - Tabstops Pop-Up Menu 67
74. Printer Options - Printer Control Codes Pop-Up Menu 67
75. Ground Water Pathway Print Pop-Up Menu 69
76. Save Printer Configurations Pop-Up Menu 70
B-1. Site File Updating Message B-1
VI
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CHAPTER 1
GETTING STARTED
1.1 Introduction: PREscore Software Package
The PREscore software package is comprised of the PREscore and PREprint computer programs and
this users manual. The PREscore software package has been developed by EPA Headquarters to assist
site assessment investigations and Hazard Ranking System (HRS) scoring by generating a Preliminary
Ranking Evaluation score and associated documentation.
The PREscore computer program (PREscore) provides an accurate, efficient, and convenient means of
scoring sites using the HRS. PREscore performs HRS calculations from raw data, calculates values
from hazardous substance information, and calculates site scores. The PREprint computer program
(PREprint) generates HRS scoresheets, an HRS documentation record, and EPA's NPL Characteristics
Data Collection form. The PREscore software package assists investigators by reducing time involved
in developing site scores, and minimizing potential math errors in scoring. The users manual provides
instruction for installing and using PREscore and PREprint.
1.2 PREscore Computer Program
PREscore is the principle component of the PREscore Software package. PREscore was designed to:
Computerize the scoring system for the HRS
Provide a user-friendly menu screen system for completing site scores
Integrate the Superfund Chemical Data Matrix (SCDM) and calculate substance
characteristics
Minimize mathematical scoring errors
Provide a useful tool for HRS scenario scoring
PREscore automates the HRS, allowing for entry and evaluation of site-related information including
sampling data, waste quantities and waste characteristics, physical parameters of the site, and
population data. In addition, PREscore allows you to enter administrative and site characteristics
information into EPA's NPL Characteristics Data Collection form, which has been incorporated into
PREscore. Through PREscore, the majority of pertinent information concerning sites proposed for the
NPL can be contained in a single site file (electronic and paper). PREscore also allows you to fully
document site scoring by using the PREscore documentation editor. You can enter descriptive
narrative text and reference citations to document entered data, selection of specific HRS factor
values, and scoring decisions.
PREscore users must be familiar with the HRS. PREscore does not provide detailed HRS instructions;
however, help screens are available throughout the program. PREscore does not internally check
("error trap") the logic for assigning all HRS factor values. PREscore is not intended as an HRS training
tool or as a substitute for HRS training. Rather, it is intended to make scoring a site and preparing the
documentation record quicker and more efficient. Further, while PREscore directly automates the HRS,
it cannot address every possible scoring situation. Therefore, you should be aware of the few scoring
situations that require PREscore-specific data-entry and the few situations that cannot be
accommodated by PREscore programming (see Appendix A).
PREscore contains HRS-related hazardous substance information on over 300 substances derived from
SCDM. This includes substance characteristics (such as toxicity and persistence) and concentration
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benchmarks for substances commonly found at Superfund sites. The PREscore software package will
be updated and redistributed periodically. At these times a new hazardous substance information file
will be distributed for incorporation into PREscore (see Appendix B regarding updating individual site
files). This will ensure that EPA is using the most recent hazardous substance data available. The
documentation record displays the program version number and date of the hazardous substance
information file. You are responsible for ensuring that the most current version of PREscore software
is being used. If you have questions regarding program updates, notify your EPA Regional computer
contact.
1.3 Users Manual & Tutorial
This users manual consists of three parts. Chapter 1, "GETTING STARTED," introduces you to the
software package and takes you through the procedures necessary to install PREscore software on
your computer. Chapter 2, "TUTORIAL," provides an initial step-by-step "hands-on" lesson in using
PREscore by "walking" you through a series of screens, entering and editing data. Chapter 3,
"PRINTING," provides instruction for using PREprint, which performs printing functions on PREscore
site files.
This manual assumes you have some familiarity with the IBM PC-type platform. Actual scoring of a
site with PREscore requires little, if any, knowledge of the Disk Operating System (DOS). However,
limited use of DOS will be necessary to install PREscore onto your computer, and to maintain the site
files you create. In addition, technical knowledge of your printer may be necessary to produce quality
printouts using PREprint. If you are unfamiliar with DOS, consult with others in your office for basic
instruction. If you are unfamiliar with your printer, contact your systems administrator.
The tutorial is designed to show how best to use the PREscore and PREprint programs. It is not
intended to provide instruction on using the MRS. The Hazard Ranking System (HRS) Guidance Manual
(OSWER Directive 9345.1-07) is under development by EPA Headquarters to provide instruction for
HRS scoring and preparing NPL listing packages. The example site file used in the tutorial is entirely
fictitious.
If, after reviewing the Users Manual & Tutorial, you have questions or comments regarding the
operation of the PREscore and PREprint programs, contact your EPA Regional computer contact.
1.4 Hardware Requirements
PREscore software requires an IBM PC or compatible. Specific minimum hardware requirements are:
384K of RAM (random access memory)
1 .OMB of available memory
MS-DOS 3.1
Site files may be saved/stored on double-density or high-density diskettes (3.5" or 5.25" size).
However, due to their size, the programs themselves can only be run from a high-density diskette or
a hard drive. PREprint will support most printers (e.g., EPSON, IBM, Hewlett-Packard) and printer types
(e.g., dot-matrix, laser).
EPA recommends that PREscore and PREprint be run from a hard disk because this greatly enhances
the programs' operation and calculation speed. Directions for creating a PREscore subdirectory on your
hard disk are provided in Section 1.5, "Software Installation." PREscore site files may be kept on
either the hard disk or a floppy.
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PREscore and PREprint were designed as single-user, interactive programs. Therefore, local area
network (LAN) compatibility is limited. The software cannot be used as a multi-user application;
however, it can be loaded into a LAN environment and used by one user at a time (see Appendix C).
1.5 Software Installation
The installation procedures presented here assume you are starting from the DOS prompt. The DOS
prompt consists of a letter (the disk drive currently active) often followed by a colon, backslash, and/or
names of subdirectories on your disk (A>, C:\>, C:\FILES> are some examples of DOS prompts).
If you do not see the DOS prompt, you may be using one of numerous menu "shell" programs (LAN
users, see Appendix C for installation instructions). Most of these have an "Exit to DOS" option that
allows you to operate from the DOS prompt. The hard disks on many computers that use menu
software have a certain subdirectory structure that is maintained by a systems administrator. Consult
your systems administrator if you are unfamiliar with how your particular system is set up.
To install PREscore and PREprint on a hard disk:
1. Insert the PREscore Software diskette into drive A. Type A: and press . If
only drive B is the correct size and format for the PREscore Software diskette, then
insert the diskette into drive B, type B:, and press < ENTER >.
2. At the A> prompt (or B> prompt if you are using drive B:), type INSTALL and press
. A subdirectory named C:\PRESCORE will be created (if it does not already
exist) and all files needed to run PREscore and PREprint will be copied into that
subdirectory.
3. To start the programs, type PRESCORE or PREPRINT at the C:\PRESCORE prompt, then
press < ENTER >.
After installation, or if you have difficulty running the programs, compare the contents of the
PRESCORE subdirectory you created with the list of "PRESCORE Subdirectory Files" given in Appendix
D. If the two do not correspond, perform the installation procedures again or contact your systems
administrator.
To run PREscore and PREprint from a floppy disk, insert the PREscore Software disk in drive A:, type
PRESCORE or PREPRINT (whichever program you want to access) at the A> prompt, and press
.
1.6 File Management
PREscore file management includes site file naming conventions, maintenance, and security. Site file
names can be made of up to eight characters (do not include spaces in the file name). When naming
site files, EPA suggests the first eight letters of the official site name be used; however, your office
may want to develop naming conventions based on site identification numbers, cost accounting codes,
etc. The site's full name (up to 29 characters) and CERCLIS number will be displayed (as entered) on
the PREscore file system screen to allow for additional identification. You will not be able to alter the
".MRS" suffix in the site name while in the PREscore program. PREscore uses this suffix to identify
a file as a PREscore file. Site files with different suffixes cannot be accessed by PREscore.
A plan for the maintenance of PREscore site files should be established. EPA recommends that site
files be maintained on both floppy diskette and hard disk. While PREscore evaluation of a site is in
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progress, you should retain a floppy diskette copy of the site file. Upon completion of PREscore
evaluation, a floppy diskette copy of the site file should be included with the site report and PREscore
printout. In addition, a protected (see security below) copy of the site file should be maintained in the
PREscore subdirectory on the hard disk with other completed PREscore site files.
PREscore has a feature that ensures the security of site data and scoring information entered into or
derived from PREscore. You may password protect individual site files. The password protection
feature is accessed from the File System Screen (see Section 2.2).
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CHAPTER 2
TUTORIAL
2.1 Introduction: PREscore Computer Program
This chapter provides instruction in the basic operation of PREscore by taking you through a series of
screens and by providing examples of how to enter and edit data. Certain conventions are used in
describing required user actions (what you must do). Words appearing in boldface indicate specific
keyboard actions. The words , , / , , ,
, and , , , etc., indicate individual keys you must press. Four additional
keys you will often use are called the cursor keys, and are marked on your keyboard by arrows pointing
up, down, left, and right. These are used to move the cursor or highlight to a particular point on the
screen. The phrase "CURSOR to the Population Factor value" means "use the appropriate cursor
key(s) to move the highlight to the Population Factor value." In cases where words or numbers are
to be typed, actions are indicated by phrases such as "type landfill #1" meaning "type the words
'landfill #1'."
If you have correctly followed the procedures listed in Section 1.5, "Software Installation," you should
be able to access PREscore. To begin...
Type PRESCORE.
Press < ENTER >.
You should see the PREscore Title Screen shown below:
PREscore Title Screen
Site Score 0.00
PREscnrE
VERSION 1.0
A Program for Hazard Ranking System Scoring
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
Office of Solid Waste and Emergency Response
Office of Emergency and Remedial Response
Hazardous Site Evaluation Division
Washington, DC 20460
Press to Continue
Figure 1
If you do not see the PREscore Title Screen, return to the software installation section.
-------
To continue...
Press < ENTER >.
General Information Screen
Site Score 0.00
GENERAL INFORMATION
EPA developed PREscore to assist site assessment investigators by
automating site scoring with the Hazard Ranking System (HRS).
PREscore performs HRS calculations from raw data entered by the user
and contains HRS-related hazardous substance information derived from
the Superfund Chemical Data Matrix (SCDM). PREscore allows site
investigators to easily test different scoring scenarios and can be
used to generate HRS documentation and other decisional records.
For program assistance consult the PREscore Software "Users Manual &
Tutorial" or call your EPA Regional computer contact.
Press to Continue
Figure 2
This screen provides some general information concerning the functions of PREscore. To continue with
PREscore...
Press < ENTER >.
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2.2 File System
You should now be at the PREscore File System Screen shown below:
File System Screen
E
Site Score 0.00
PREscore Data Files -> C:\PRESCORE
Name Date Time Size
TUTORIAL 09/11/91 13:20 10271
Site Name CERCLIS Number
Tutorial Site TXD123456789
*
:NTER-Select F2-Chdir F3-New File F4-Copy F5-Passwd F6-Delete End-Exit
Figure 3
The file system enables you to create, select, save, delete, copy, or password protect PREscore site
files in any directory or on diskette. Information in the current directory includes filenames, dates and
times that the files were last saved, and file sizes (in bytes). To the right of the middle bar is the name
of each site and its CERCLIS number (as entered). You should apply a standard method for naming
site files. Section 1.6 of this manual discusses file management.
The status line at the bottom of the screen indicates which actions and functions are available from
the screen (in this case, the function key to create a new file, function key to delete
a file, and so on). The status line also provides brief user instructions (on-screen help), such as "Enter
Data" and "ENTER-Select."
One of the functions displayed on the status line for the file system screen is "F5-Passwd." PREscore
allows you to password protect site files. The password protection feature is accessed from the file
system screen using the function key. You may protect a site file at any stage in a PREscore
evaluation. The password protection is activated the first time you exit PREscore after having selected
a password. The next time anyone enters the program and attempts to access the protected site file
they are prompted for the password. If they do not provide the correct password, access to that site
file is denied. A password may be up to eight characters long and cannot be changed once assigned.
To retrieve the site file for this tutorial...
CURSOR to the TUTORIAL filename.
Press < ENTER >.
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2.3 General Operation
You are at the Summary Screen, the "main menu" of PREscore:
Summary Screen
E
Tutorial Site TUTORIAL. MRS Site Score 71.15
PREscore Version 1.0
Pathway
Ground Water
Drinking Water
Food Chain
Environmental
Surface Water
Resident
Nearby
Soi I Exposure
Air
Likelihood
of Release
550
550
550
550
::::::::::::::::::::::!: OV6T
550
25
340
Waste
Characteristics
32
32
320
320
and Flow, F7 to
32
32
18
Targets
1 .34E+03
1.60E+01
4.86E+01
1.25E-01
Toggle
7.30E+01
9.00E-01
3.90E+01
Pathway
Score
100.00
3.41
100.00
0.27
100.00
15.57
0.01
15.58
2.90
NTER-Select F8-Files F9-Info F10-Help End-Exit
Figure 4
The Summary Screen is a menu with choices of factor categories within pathways (or threats for
Surface Water and Soil Exposure), such as Air Pathway Likelihood of Release, Ground Water Pathway
Likelihood of Release, Drinking Water Threat Targets, etc. As you move the cursor around this screen
(using the cursor keys), notice that if you try to enter a number, PREscore "beeps" to alert you that
data entry is inappropriate at your location. Whenever the cursor is a solid "block" (on some
monochrome screens it will appear as an underline), PREscore is displaying a calculated value, one that
cannot be overwritten or entered directly by the user and can only be changed by editing "raw" data.
When you start a new file, only zeros will appear on this screen until you enter data. Because the
TUTORIAL file already has data entered, scores are displayed. The "ENTER-Select" prompt on the
status line (in the lower left corner of the screen) indicates that you must press < ENTER > if you want
to enter new data or edit previously entered data. For example...
CURSOR to the "Targets" column for the Air Pathway.
Press to select the item.
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By selecting Air Pathway Targets, you see the following:
Air Pathway Targets Screen
E
Tutorial Site TUTORIAL. HRS Site Score 71.15
Air Pathway -> Targets
Factor Category and Factors
Distance to Nearest Individual (miles)
Population Level I Concentrations
Population Level II Concentrations
Population Potential Contamination
Population
Resources
Sensitive Environments
Air Pathway Targets Total
Max
50
**
**
**
**
5
**
**
Value
20 /0.020
O.OOE+00
O.OOE+00
1.40E+01
1.40E+01
5.00E+00
4.35E-02
3.90E+01
Type
'
** Maximum value not applicable
nter Data F10-Help End-Previous
Figure 5
You can now see factor-category and factor-level detail of the Air Pathway Targets score that was
displayed on the Summary Screen. Choosing an item from the Summary Screen takes you from
general information to specific. This is the concept behind operation of the PREscore program ~ a
hierarchy of menus with the Summary Screen at the apex.
The cursor is flashing; the status line prompt, in the lower left corner of the screen, says "Enter Data."
This means you enter data for this factor at this location. Type the applicable number (the raw data).
In this case you are entering the distance, in miles, to the nearest individual.
Type .05.
CURSOR to the
"Population" value.
PREscore immediately calculates the factor value for "Distance to Nearest Individual." Notice that the
cursor at the population position is not flashing. This means a calculated value is displayed; you do
not enter data at this location. In addition, the status line prompt says "ENTER-Select," which means
you must access another screen to enter data. To enter the raw data required to calculate the
population value...
Press < ENTER >.
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Air Pathway Target Population Screen
E
Tutorial Site TUTORIAL. MRS Site Score 71.15
Air Pathway -> Targets -> Population
Distance from Nearest Source
Ons ite
Greater than 0 to 1/4 mile
Greater than 1/4 to 1/2 mile
Greater than 1/2 to 1 mile
Greater than 1 to 2 mi les
Greater than 2 to 3 miles
Greater than 3 to 4 miles
Population
12.0
123.3
236.3
321.0
5476.0
8976.9
13745.1
Concentration
Potential
Potential
Potential
Potential
Potential
Potential
Potential
Type
Score
1.70E+00
4.10E+00
9.00E-01
8.00E-01
2.70E+00
1.20E+00
2.30E+00
inter Data FlO-Help End-Previous
Figure 6
The cursor is now flashing and you may enter population data. If you are uncertain which people can
be evaluated for this factor, use the function key to access help screens which provide basic
information, derived from the HRS, about each factor.
Press .
Air Pathway Target Population Help Screen
AIR TARGET POPULATION
Enter number of people within each distance category. Count residents,
students, and workers regularly present within target distance category.
Do not count transient populations (e.g., customers and travelers passing
through area).
When residential population estimate is based on number of residences,
multiply each residence by average number of persons per residence for
the county in which the residence is located.
Enter sampling information under "Concentration" column.
For further information, see:
HRS Section 6.3.2: "Population"
HRS Section 6.3.2.4: "Potential contamination"
*** Press any key to EXIT Help ***
Figure 7
To exit the help screen...
Press any key.
10
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To enter population data...
CURSOR to the "Greater than 0 to 1/4 mile" position.
Type 5000.
Press < ENTER >.
In the far column a recalculation gives the new population value for that distance category.
The middle column, entitled "Concentration," shows the level of contamination the population is
exposed to (Level I, Level II, or Potential). The level of contamination is based on sampling information.
To enter air sampling information...
CURSOR to the "Concentration" column.
Press < ENTER >.
Air Pathway Samples Screen
E
Tutorial Site TUTORIAL. MRS Site Score 71.15
Air Pathway -> Samples
Sample Name
1
Distance
(miles)
0.000
Level of
Concentration
Potent i a I
Data
Type
*
Inter Data F10-Help End-Previous
Figure 8
Samples for the air pathway are entered by recording sample name/identification number and distance
of sample from the nearest source.
Type Air Sample #1.
This air sample was taken at the source so the distance remains "0.000" miles.
To enter chemical sampling data...
CURSOR to the "Level of Concentration" column.
Press < ENTER >.
11
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Air Pathway Sample Contaminants Screen
1
Tutorial Site TUTORIAL. HRS Site Score 71.15
Air Pathway -> Samples -> Contaminants
Sample ID -> Air Sample #1
Sample Contaminants
Sample
Concent r.
M9/m3
Benchmarks/Screening C(/ig/m3)
NAAQS
Cumulative Screening Index, Z(C/SC)
Cancer R.
O.OE+00
RFD
O.OE+00
INTER-Select F2-Radionuclides FlO-Help End-Previous
Figure 9
From the Air Pathway Sample Contaminants Screen, access the hazardous substances list and enter
the concentrations reported from the sample defined in the previous screen. To select a hazardous
substance...
Press < ENTER >.
Hazardous Substance Listing Screen
04/16/91
Chemical Name
Acenaphthylene
Acenaphthene
Acetaldehyde
Acetone
Acetonitrile
Acetophenone
Acetyl-2-thiourea, 1-
Acrolein
Acrylamide
Acrylic acid
Acrylonitrile
Adipic acid
Aldicarb
Atdrin
Allyl alcohol
Aluminum
Aluminum phosphide
Ammoni a
Ammonium pi crate
Ammonium sulfamate
Aniline
Anthracene
n PgDn PgUp End
Home
Synonym
Acenaphthylene, 1,2-dihydro
Ethyl aldehyde
2-Propanone
Methyl cyanide
AcetyIbenzene
Acetylthiocarbamide, n-
Propenal
Propenamide
Propenoic acid
Vinyl cyanide
Hexanedioic acid
Propenol, 2-
Phostoxin
Page 1 of 14
00208-96-8
00083-32-9
00075-07-0
00067-64-1
00075-05-8
00098-86-2
00591-08-2
00107-02-8
00079-06-1
00079-10-7
00107-13-1
00124-04-9
00116-06-3
00309-00-2
00107-18-6
07429-90-5
20859-73-8
07664-41-7
Phenol, 2,4,6-trinitro-, ammonium00131-74-8
Sulfamic acid, monoammonium salt 07773-06-0
Benzeneamine 00062-53-3
Paranaphthalene 00120-12-7
F2-Search F3-Next ENTER-(De)Select F10-Help
Figure 10
12
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Movement within the hazardous substance list is explained on the status line. Hazardous substances
can be located in one of two ways: scanning for the substance name by using the ,
, and cursor keys, or by the search function (). You may search by substance name
or CAS number.
CURSOR to "Aluminum."
Press < ENTER >.
A triangle appears next to the substance indicating selection.
Press .
Air Pathway Sample Contaminants Screen: With Example
E
Tutorial Site TUTORIAL. MRS Site Score 71.15
Air Pathway -> Samples -> Contaminants
Sample ID -> Air Sample #1
Sample Contaminants
1 Aluminum
Sample
Concentr.
/ng/m3
O.OE+00
Benchmarks/Screening C(/tg/m3)
NAAQS
O.OE+00
Cumulative Screening Index, Z(C/SC)
Cancer R.
O.OE+00
O.OE+00
RFD
O.OE+00
O.OE+00
INTER-Select FlO-Help End-Previous
Figure 11
You returned to the contaminants screen with your substance selection recorded. The applicable
benchmarks and screening concentrations for the hazardous substance(s) you select are displayed
(zeros are displayed if these concentrations have not been established). To enter concentration data
for this substance...
CURSOR to the "Sample Concentr." column.
Type 1.2. (Note that concentrations must be entered in the units displayed.)
Press < ENTER >.
You have reached the lowest level (screen) in the overall hierarchy of menus. It provides PREscore
with the most detailed information you can enter (sample-specific chemical data). In this example you
have moved four levels down in the hierarchy, from Summary Screen to Air Pathway Targets Screen
to Air Pathway Target Population Screen to Air Pathway Samples Screen to Air Pathway Sample
Contaminants Screen. To return to previous screens (move up through the hierarchy)....
Press .
13
-------
Air Pathway Samples Screen: With Example
E
Tutorial Site TUTORIAL. HRS Site Score 71.15
Air Pathway -> Samples
Sample Name
1 Air Sample #1
Distance
(miles)
0.000
Level of
Concentration
Level II
Data
Type
*
INTER-Select F10-Help End-Previous
Figure 12
You have returned to the Air Pathway Samples Screen. The key functions conversely to the
< ENTER > key, moving from detailed to general. Note that the sample information you entered is
reflected in the "Level of Concentration" column.
You can also qualitatively record the quality of data entered.
CURSOR to the "Data Type" column.
Press < ENTER >.
You should now see the letter "E" in the column. Pressing or the function key
cycles through three choices: E, H, or blank. "H" indicates that the entered data is "hard" or "HRS
quality" data. "E" indicates "estimated" data was entered. The blank is used when you have not
entered data.
2.3.1 Documentation Feature
From the "Data Type" column, you may access the documentation editor. The status line says "F3-
Document."
Press .
14
-------
Documentation Editor Screen
E
Tutorial Site TUTORIAL. MRS Site Score 71.15
1
SC
Document time and location of the sample. Provide the sample
quantitation limit. Identify any data that was qualified and
explain qualifications and rationale for using the data.
Document background concentrations and attribution of the
substance(s) to the site. Include reference numbers.
Air Sample #1 was taken at location B-9 on 8/8/90 (Reference 1).
Aluminum was found at a concentration of 1.2 ug/m3 (SQL 0.5 ug/m3)
(Reference 1).
A waste pile with aluminum is located at the site (Reference 3).
Background (location A-2) has aluminum concentrations of <0.5 ug/m3
(SQL 0.5 ug/m3)( Reference 1).
Refs: 1,3
a
e
-Switch Row 1 Col 1 Page 1 End-Previous
Figure 13
The document editor operates as a simple word processor. You can insert, delete, and type over
existing text; however, it does not have advanced word processing features (e.g., block, underline).
The editor also features "word wrap" and "scrolling" so text that would extend beyond the right edge
of the screen is moved to the next line. The documentation screen also provides brief guidance on
documentation requirements. References should be recorded to support documentation statements.
To reference text...
Press .
Note that reference numbers (1,3) have been entered.
Press .
The reference list appears, displaying previously entered references. Enter reference citations by typing
directly into the space opposite the "Number" column. The citation is restricted to three lines of text.
References may be inserted and deleted; however, those actions will change reference numbering only
on the list. (Entry of more than 100 references may cause memory overload difficulties which could
cause the system to terminate.)
15
-------
Reference List
I
Tutorial Site TUTORIAL. MRS Site Score 71.15
Number PREscore Reference List -> References
1
2
3
4
5
Environmental Assessment of Tutorial Site, ABC Consultants,
January 2, 1991.
U.S. Environmental Protection Agency, "Standard Operating Procedure
to Determine Site Latitude and Longitude Coordinates," 1991.
Calculation worksheet for Tutorial Site.
Special Study, Recycling at Tutorial Site, XYZ Corporation,
May 29, 1988.
inter Data F10-Help End-Previous
Figure 14
The , , and cursor keys move you through the list of references.
To exit the reference list and documentation editor...
Press twice.
To return to the Summary Screen...
Press .
16
-------
Summary Screen
E
Tutorial Site TUTORIAL. MRS Site Score 72.14
PREscore Version 1.0
Pathway
Ground Water
Drinking Water
Food Chain
Environmental
Surface Water
Resident
Nearby
Soi I Exposure
Air
Likelihood
of Release
550
550
550
550
!i!!!!!!!jjj!jiiiii!!ij! Over
550
25
550
Waste
Characteristics
32
32
320
320
and Flow, F7 to
32
32
18
Targets
1.34E+03
1.60E+01
4.86E+01
1.25E-01
Toggle-
7.30E+01
9.00E-01
2.00E+02
Pathway
Score
100.00
3.41
100.00
0.27
100.00
15.57
0.01
15.58
24.01
INTER-Select FS-Files F9-Info F10-Help End-Exit
Figure 15
The Summary Screen displays the new Air Targets value and new Site Score resulting from the
information entered.
2.3.2 NPL Characteristics Data Collection Form
In addition to displaying scores and serving as the main menu for PREscore, the Summary Screen is
also the access point for the NPL Characteristics Data Collection form. Note the "F9-lnfo" function
on the status line. Every time you create a new site file you should first enter site administrative and
characteristics information. To enter this information...
From the Summary Screen...
Press .
17
-------
Page 1 of the NPL Characteristics Data Collection form appears.
NPL Characteristics Data Collection Form
Tutorial Site
TUTORIAL.HRS
Site Score 72.14
NPL Characteristics Data Collection Form -> Record Information Page 1 of 5
1. Site Name: Tutorial Site
(as entered in CERCLIS)
2. Site CERCLIS Number: TXD123456789
3. Site Reviewer: R.G. Alexander
4. Date: 8/30/91
5. Site Location: Venus, Texas
(city/county,state)
6. Congressional District: 21
7. Site Coordinates: Single
Latitude: 25°12'34.2"
Longitude: 121°34'21.4"
Enter Data
PgUp PgDn F10-Help End-Previous
Figure 16
Various administrative and site characteristics information is entered on the NPL Characteristics Data
Collection form. Information is entered directly (typed) or selected from pop-up menus. The form
encompasses five pages (screens); the succeeding pages are accessed via the key.
To exit the form and return to the Summary Screen...
Press .
2.3.3 Exiting and Saving Site Files
To save any changes made to the file...
From the Summary Screen...
Press .
18
-------
PREscore Save/Exit Pop-Up Menu
Tutorial Site TUTORIAL. MRS Site Score 72.14
E
PREscore Version
Pathway
Ground Water
Drinking Water
Food Chain
Environmental
Surface Water
Resident
Nearby
Soi I Exposure
Air
Likelihood
of Release
550
550
550
550
Over
550
25
550
1.0
Waste
Characteristics
32
32
320
320
and Flow, F7 to
32
32
18
NTER-Select F8-Files
Targets
1.34E+03
1.60E+01
4.86E+01
1.25E-01
Toggle
Pathway
Score
100.00
3.41
100.00
0.27
100.00
Return to PREscore
Save changes and continue
Exit to DOS, save changes
Exit to DOS, ignore changes
F9-Info F10-Help End-Exit
-
Figure 17
CURSOR to "Save changes and continue" (if you are finished, select "Exit to DOS, Save
Changes").
Press < ENTER >.
Save File Option Pop-Up Menu
Tutorial Site TUTORIAL. MRS Site Score 72.14
E
PREscore Version 1.0
Pathway
Ground Water
Drinking Water
Food Chain
Environmental
Surface Water
Resident
Nearby
Soi I Exposure
Air
Likelihood
of Release
550
550
550
550
Over
550
25
..._ ... *-
Save file
Waste
Characteristics
32
32
320
320
and Flow, F7 to
Targets
1.34E+03
1.60E+01
4.86E+01
1.25E-01
Toggle
32 j S
32 I Return tc
I Save char
with current name
with new name
NTER-Select
>ave /
> PREsc
iges ar
OS, S£
OS, ic
Pathway
Score
100.00
3.41
100.00
0.27
100.00
ore
)d continue
ve changes
nore changes
Figure 18
CURSOR to "Save file with new name."
Press < ENTER >.
19
-------
Type your first name (8 or fewer characters, no spaces in name).
Press < ENTER >.
A copy of the tutorial file (with modifications) has now been made under your name. The next time
you access the File System (either when you start PREscore or by pressing from the Summary
Screen) you will see this file. Note that you need to save the file when exiting the program or when
accessing a new file.
To this point, the Tutorial has covered the basics of operating the PREscore program. You have
learned how to access any screen in PREscore by using the cursor keys and < ENTER>, and how to
return to previous screens by pressing , or return to the Summary Screen by pressing
. You have also learned how to access Help (), the documentation editor (),
and the NPL Characteristics Data Collection form ( from the Summary Screen). The rest of this
Tutorial shows how to apply these basics to the screens for each pathway.
2.4 Waste Characteristics
The hierarchy of menus allows you maximum flexibility in data input; you may enter any piece of data
at any time. EPA recommends entering source and waste information first.
If you saved your file and exited PREscore after completing the General Operation section, retrieve your
file by following the procedures outlined in Section 2.2.
From the Summary Screen...
CURSOR to the "Waste Characteristics" column (any pathway).
Press < ENTER >.
Regardless of which pathway was selected, you see the following screen:
Waste Characteristics Sources Screen
E
Tutorial Site NAME.HRS
Site Score 72.14
Waste Characteristics -> Sources
Source Name
1 Waste Pile #1
2 Paint \laste Area #3
Migration Pathway
Ground Water
Surface Drinking Water
Surface Water Food Chain
Surface Water Environment
Soil Resident Threat
Soil Nearby Threat
Air
Migration
Pathways
GW-SW-SE-A
GW-SW-SE-A
Vol/Area
Value
1.00E+02
4.00E+01
Wastestream
Value
O.OOE+00
4.00E-01
Contaminant Values
Toxicity/Hobility 1.00E+04
Tox. /Persistence 1.00E+04
Tox./Persis./Bioacc. 5.00E+08
E tox/Pers i s . /Ebi oacc . 5 . OOE+08
Toxicity 1.00E+04
Toxicity 1.00E+04
Toxicity/Mobility 2.00E+03
INTER-Select
HWQVs
100
100
100
100
100
100
100
HWQ
Value
1.00E+02
4.00E+01
WCVs
32
32
320
320
32
32
18
F10-Help End-Previous
Figure 19
20
-------
The Sources Screen lists all the sources defined for the site.
CURSOR to the "Migration Pathways" column for Paint Waste Area #3.
Press < ENTER >.
Source Containment Screen
E
Tutorial Site NAME. MRS Site Score 72.14
Waste Characteristics -> Source -> Containment -> Paint Waste Area #3
Pathway Containment
Ground Water Containment
Overland Flow Surface Water Containment
Flood Containment Factor
Flood Frequency Factor
Soil Exposure Attractiveness / Accessibility
if contamination is less than 2 feet deep
Air Pathway Containment (gas)
Air Pathway Containment (particulate)
Max
10
10
10
50
100
10
10
Value
10
10
0
0
50
10
10
Type
NTER-Select F10-Help End-Previous
Figure 20
This screen displays all containment values for Paint Waste Area #3. In this way, PREscore knows
whether to include the hazardous waste quantity and hazardous substances associated with this
source when calculating pathway scores.
CURSOR to the "Ground Water Containment" value.
Press < ENTER >.
21
-------
Source Containment Screen: Ground Water Containment Pop-Up Menu
I
Tutorial Site NAME.HRS Site Score 72.14
Waste Characteristics -> Source -> Containment -> Paint Waste Area #3
Pathway Containment I Max I Value
Ground Water Containment r- Containment -i
n
Overland Flow Surface Water Containment 3
5
Flood Containment Factor 7
Flood Frequency Factor 9
10
if contamination is less than 2 feet deep
Air Pathway Containment (gas) 10 10
Air Pathway Containment (particulate) 10 10
Type
"NTER-Select F10-Help End-Previous
Figure 21
A pop-up menu appears displaying the ground water containment values. To select a containment
value, cursor to the appropriate choice and press < ENTER >. < ESC > exits a menu without changing
the previous selection. If you are unsure of how to evaluate the containment value for this pathway...
Press .
Source Containment Screen: Ground Water Containment Help Screen
GROUND WATER CONTAINMENT
Select containment factor value from MRS Table 3-2 for each source.
If there is evidence of hazardous substance migration from source area,
select containment value of 10.
For further information, see:
MRS Section 3.1.2.1: "Containment"
*** Press any key to EXIT Help ***
Figure 22
The help screens provide limited guidance and direct you to the appropriate section of the HRS for
more detailed information.
To leave the help screen...
Press any key.
Press < ENTER >.
22
-------
Suppose that when applying HRS criteria to Paint Waste Area #3, you determine its overland flow
surface water containment value is 0. To enter this information...
CURSOR to the "Overland Flow Surface Water Containment" value.
Press < ENTER >.
CURSOR to "0" in the pop-up menu.
Press < ENTER >.
The new value for Overland Flow Surface Water Containment is now recorded. To return to the
Sources Screen...
Press .
Because both Surface Water Pathway containment values (overland flow and flood) for Paint Waste
Area #3 are now 0, the "Migration Pathways" column shows that the wastes associated with this
source are only available to the Ground Water (GW), Soil Exposure (SE), and Air Pathways (A). The
waste quantity value for this source is not included in the hazardous waste quantity value (HWQV)
totals for any of the surface water pathway threats.
To see more information about the source...
CURSOR to the "Vol/Area Value" column for Paint Waste Area #3.
Press < ENTER >.
The following screen appears:
Source Information Screen
E
Tutorial Site NAME. HRS Site Score 72.14
Waste Characteristics -> Source -> Vol/Area -> Paint Waste Area #3
Factor Categories and Factors
Source Type
Secondary Source Type
Number of Source Contaminants
Source Volume
Source Area
Units
Count
cu yd
ft'
Value
Surf .Imp
N.A.
3
100.0
1021.5
Type
NTER-Select F10-Help End-Previous
Figure 23
Displayed is information on the source including its type, number of associated hazardous substances,
volume, and area. To select a source type...
23
-------
CURSOR to the "Source Type" value.
Press < ENTER >.
A pop-up menu appears displaying different source types. Since "Surface Impoundment" is the correct
source type...
Press .
CURSOR to the "Secondary Source Type" position.
Press < ENTER >.
This pop-up menu allows you to further define source type with respect to fire history (active fire area,
burn pit, or not applicable). This information is important in the scoring of the Air Pathway.
Press .
Suppose this source is contaminated with lead, mercury, and nickel. To enter this information...
CURSOR to the "Number of Source Contaminants" value.
Press < ENTER >.
The Contaminant Selection Screen appears:
Source Contaminant Selection Screen
E
Tutorial Site NAME. MRS Site Score 72.14
Source / Soil Exposure -> Contaminants
Source ID -> Paint Waste Area #3
Sample Contaminants
1 Lead
2 Mercury
3 Nickel
Concent r.
ppm
O.OE+00
O.OE+00
O.OE+00
Liq?
Y/N
YES
YES
YES
2 ft
or
Less
YES
YES
YES
Cumulative Screening Index, S(C/SC)
Screening C.(ppm)
Cancer R.
O.OE+00
O.OE+00
O.OE+00
O.OE+00
RFD
O.OE+00
1.7E+02
1.2E+04
O.OE+00
INTER-Select FlO-Help End-Previous
Figure 24
The three hazardous substances are recorded as associated with this source. These substances were
selected from PREscore's hazardous substance file. To view this file...
Press < ENTER >.
24
-------
Hazardous substances can be located in one of two ways: scanning for the substance name by using
the , , and cursor keys, or by a search function (). You can search by
substance name or CAS number. To add arsenic to the list of hazardous substances at Paint Waste
Area #3...
Press .
Type arsenic.
Press twice.
The triangular mark to the left of the hazardous substance name indicates that it has been selected
(pressing again would deselect the substance).
To exit the Contaminant Selection Screen...
Press .
Source Contaminant Selection Screen: With Example
E
Tutorial Site NAME. MRS Site Score 72.14
Source / Soil Exposure -> Contaminants
Source ID -> Paint Waste Area #3
Sample Contaminants
1 Arsenic
2 Lead
3 Mercury
4 Nickel
Concentr.
ppm
O.OE+00
O.OE+00
O.OE+00
O.OE+00
Liq?
Y/N
NO
YES
YES
YES
2 ft
or
Less
YES
YES
YES
YES
Cumulative Screening Index, S(C/SC)
Screening C.(ppm)
Cancer R.
3.2E-01
O.OE+00
O.OE+00
O.OE+00
O.OE+00
RFD
5.8E+02
O.OE+00
1.7E+02
1.2E+04
O.OE+00
.NTER-Select FIO-Help End-Previous
Figure 25
Four hazardous substances have now been selected and are displayed. If you have analytical data
from samples collected at the source, enter them, in ppm, in the "Concentr." column. For each
substance, you must record whether it was deposited or is present as a liquid and whether it is present
at depths of 2 feet or less.
CURSOR to the "Liq?" column for arsenic.
Press < ENTER >.
CURSOR to "No".
Press < ENTER >.
25
-------
To exit the Source Contaminant Selection Screen...
Press .
To evaluate waste quantity...
On the Source Information Screen...
CURSOR to the "Source Volume" position.
Type 248.
CURSOR to the "Source Area" position.
Type 1498.
Press .
On the Waste Characteristics Sources Screen...
CURSOR to the "Wastestream Value" column for Waste Pile #1.
Press < ENTER >.
The Wastestreams Screen appears:
Source Hazardous Waste Quantity Wastestreams/Constituents Screen
E
Tutorial Site NAME. MRS Site Score 72. H
Waste Characteristics -> Source -> Wstreams-> Waste Pile #1
Wastestream Name
1
HCQ total for source
Constituents
HCQ
O.OOE+00
Compl
NO
Type
O.OOE+00
Wastestream Quantity as Deposited
Quantity
0.0
Unit
Ibs
Compl
NO
Type
WQD total for source
Factors
O.OOE+00
O.OOE+00
Inter Data F10-Help End-Previous
Figure 26
Suppose you have file information indicating that ABC Chemical Co. trucked 15 cubic yards of solid
waste to this pile for disposal between 1978 and 1 980. Also, laboratory analysis shows this waste
contained approximately 1 percent cadmium. To enter this information...
CURSOR to the "Wastestream Name" column.
Type Cadmium Waste.
CURSOR to the "HCQ" column for this wastestream (HCQ is hazardous constituent quantity).
Press < ENTER >.
26
-------
The Constituents Screen appears:
Source Hazardous Waste Quantity Constituents Screen
E
Tutorial Site NAME. MRS Site Score 72.14
Waste Characteristics -> Source -> Uastestream -> Constituents ->
Waste Pile #1 Cadmium Waste
Constituents
Quantity Deposited in Wastestream(lbs)
Concentration
0.0
Units
Liq.
Qua I
Wastestream HCQ
HCQ
O.OOE+00
NTER-Select F10-Help End-Previous
Figure 27
From this screen you enter substances (constituents) that are known to compose, in known
concentrations, all or part of the wastestream you have defined. To enter constituent information...
CURSOR to the "Constituents" column.
Press < ENTER >.
Press .
Type cadmium.
Press < ENTER > twice.
Press .
CURSOR to the
Type 1.
CURSOR to the
Press .
CURSOR to "%."
Press < ENTER >.
CURSOR to the "Liq." column.
Press < ENTER >.
CURSOR to "No."
Press < ENTER >.
Press .
You have now entered a constituent and a concentration. "HCQ" still shows zero because you have
not yet entered the wastestream quantity of which the cadmium is a constituent. To enter
wastestream quantity...
"Concentration" column.
"Units" column.
27
-------
CURSOR to the "Quantity" column.
Type 15.
CURSOR to the "Unit" column.
Press < ENTER >.
CURSOR to "cuyds."
Press < ENTER >.
Source Hazardous Waste Quantity Wastestreams/Constituents Screen: With Example
E
Tutorial Site NAME. MRS Site Score 72.14
Waste Characteristics -> Source -> Ustreams-> Waste Pile #1
Wastestream Name
1 Cadmium Waste
HCQ total for source
Constituents
HCQ
3.00E+02
Compl
NO
Type
3.00E+02
Wastestream Quantity as Deposited
Quantity
15.0
Unit
yd3
Compl
NO
Type
UQD total for source
Factors
6.00E+00
3.00E+02
ENTER-Select FlO-Help End-Previous
Figure 28
PREscore has calculated values for Hazardous Constituent Quantity (HCQ, 3.00E + 02) and
Wastestream Quantity (6.00E + 00). Because the constituent information is not complete, the higher
of these two values is recorded as the Wastestream Quantity Deposited (WQD) total for the source.
The "Compl" columns in both constituent and wastestream sections reflect whether the information
you have entered is "complete." To select "YES" or "NO," cursor to the "Compl" column and use the
function key to toggle between the two choices.
To return to the Sources Screen...
Press .
The Hazardous Waste Quantity (HWQ) value for Waste Pile #1 has been updated to reflect the
wastestream information.
To return to the Summary Screen...
Press .
The hazardous waste quantity information entered is evaluated for all pathways based on the
availability of source contaminants to each pathway. You define that availability by assigning
containment values for each source. Therefore, you only enter source information once; PREscore
evaluates it for all pathways.
28
-------
All pathway scores and the site score now reflect the additions you have made while in the Waste
Characteristics section of the program.
2.5 Ground Water Pathway
The likelihood of release and targets factor categories for the Ground Water Pathway work differently
than other pathways. Both factor categories are scored on an "aquifer specific" basis.
From the Summary Screen...
CURSOR to the "Likelihood of Release" column for the Ground Water Pathway.
Press < ENTER >.
Aquifer Selection Screen
E
Tutorial Site NAME. MRS Site Score 72.14
Ground Water -> Aquifer Selection
Aquifer Name
1 Surficial Aquifer
2 Cascade Sand
3 Big Water Aquifer
Over-
lying
no.
0
1
0
Type
of
Aquifer
NonKrst
NonKrst
Karst
Inter-
connect
with
0
1
0
Data
Type
Likelihood
of Release
Value
550
550
410
Targets
Value
1.10E+01
1.34E+03
1.66E+03
NTER-Select FlO-Help End-Previous
Figure 29
This is the Aquifer Selection Screen. Here, you enter information about the aquifers being evaluated.
Enter the aquifer name and specify an "overlying number" indicating which aquifer, if any, immediately
overlies the aquifer you are defining. In this example, the Cascade Sand aquifer is overlain by the
Surficial Aquifer, so "1" is entered next to the Cascade Aquifer. You must also indicate whether the
aquifer is karst or non-karst and specify which aquifers are interconnected. Interconnection is recorded
in the "Interconnect with" column by entering the number of the aquifer interconnected with the
aquifer you are defining. In this case the Cascade Sand aquifer is interconnected with the Surficial
aquifer, so "1" is entered. Note that both the overlying and interconnected aquifer numbers must be
lower than the sequential number of the aquifer you are entering (the Cascade Sand aquifer is
sequential aquifer #2, which is numerically greater than sequential aquifer #1, the Surficial Aquifer).
For pathway scoring, PREscore automatically uses the highest scoring aquifer.
The < Delete > key can be used to delete aquifer information; deleting an aquifer results in the deletion
of all aquifer-specific information entered for that aquifer (i.e., targets, sampling data, etc.).
29
-------
To view likelihood of release information for the Surficial Aquifer...
CURSOR to the "Likelihood of Release Value" column for the Surficial Aquifer.
Press < ENTER >.
Ground Water Pathway Likelihood of Release Screen
E
Tutorial Site NAHE.HRS Site Score 7Z.14
Ground Water -> Likelihood of Release -> Surficial Aquifer
Factor Category and Factors
Observed Release
a. Containment
Net Precipitation (inches)
b. Precipitation Factor
c. Depth to Aquifer
d. Travel Time
Potential to Release =a*(b+c+d)
Likelihood of Release
Max
550
10
10
5
35
500
550
Value
550
10
4.3
1
5
35
410
550
Type
;itii:::::::
Jlllll::::::
ENTER-Select F10-Help End-Previous
Figure 30
For this aquifer, an observed release has been scored and potential to release factors have also been
evaluated.
Press .
To view likelihood of release information for the Big Water Aquifer...
CURSOR to the "Likelihood of Release Value" column for the Big Water Aquifer.
Press < ENTER >.
Note that no observed release has been scored, so the Likelihood of Release value is the same as the
Potential to Release value.
CURSOR to the "Depth to Aquifer" value.
Press < ENTER >.
30
-------
Ground Water Pathway Potential to Release Screen
E
Tutorial Site NAME. MRS Site Score 72.14
Ground Water -> Potential to Release -> Depth to Aquifer/Hydr. Conductivity
Big Water Aquifer
Factors
Depth of Contamination (feet)
Depth to Aquifer from Surface (feet)
Ars All Layers Karst?
Total Thickness of Layer(s) With Lowest Conductivity (ft)
Hydraulic Conductivity of Layer(s) (cm/sec)
Value
10.00
25.00
YES
12.00
1E-06
Type
Inter Data F10-Help End-Previous
Figure 31
On this screen you specify depth of contamination and depth to the aquifer. You also describe the
geologic material in the interval between the contamination and the top of the aquifer being evaluated.
Specifically, you describe the extent of karst layers, the thickness of the layer(s) with the lowest
hydraulic conductivity, and the hydraulic conductivity of that layer.
CURSOR to the "Depth to Aquifer from Surface" position.
Type 156.
CURSOR to the "Hydraulic Conductivity of Layer(s)" position.
Type 17 (this becomes 1x10~7 cm/sec).
Note that hydraulic conductivity may only be entered as integers representing a single digit multiplier
raised to a negative exponent. If you are unsure of the hydraulic conductivity of the geologic material,
access the help screen.
Press .
31
-------
Hydraulic Conductivity Factor Help Screen
GROUND WATER HYDRAULIC CONDUCTIVITY
Enter lowest hydraulic conductivity of individual layers in interval
between the lowest known point of hazardous substances and top of aquifer
being evaluated. Use MRS Table 3-6 or data from in-situ or laboratory
tests to determine hydraulic conductivity. Use representative, measured,
hydraulic conductivity values whenever available.
Enter 18 for layers with hydraulic conductivity (HC) = 1x10-8 (clay; low
permeability till; shale; unfractured metamorphic/igneous rocks)
Enter 16 for layers with HC = 1x10-6 (silt; loesses; silty clays;
moderately permeable till; low permeability sandstone; low permeability
limestone (no karst); low permeability fractured metamorphic/igneous rocks)
Enter 14 for layers with HC = 1x10-4 (sands; sandy silts; highly
permeable till; peat; moderately permeable limestone (no karst); moderately
permeable sandstone; moderately permeable fractured metamorphic/igneous
rocks)
Enter 12 for layers with HC = 1x10-2 (gravel; clean sand; karst
limestones; permeable basalt; highly permeable fractured metamorphic/
igneous rocks)
For further information, see:
HRS Section 3.1.2.4: "Travel time"
*** Press any key to EXIT Help
***
Figure 32
Remember, help screens are available from every data entry position throughout the program. To exit
a help screen...
Press any key.
Press .
The depth to aquifer and travel time values reflect changes you made in depth to aquifer and hydraulic
conductivity. Note that likelihood of release data must be entered separately for each aquifer.
Press .
CURSOR to the "Targets Value" column for the Surficial Aquifer.
Press < ENTER >.
32
-------
Ground Water Pathway Targets Screen
E
Tutorial Site NAME. MRS Site Score 72.14
Ground Water -> Targets -> Surficial Aquifer
Factor Category and Factors
Distance to Nearest Well (miles)
Population Potential Contamination
Population Level I Concentrations
Population Level II Concentrations
Population
Resources
Wellhead Protection Area (UHPA)
Ground Water Targets Total (this aquifer only)
Ground Water Targets Total (incl. overlying aquifers)
Max
50
**
**
**
**
5
20
**
**
Value
5 / 1.200
1.00E+00
O.OOE+00
O.OOE+00
1.00E+00
5.00E+00
O.OOE+00
1.10E+01
1.10E+01
Type
Ill
:::::!:
:::i:::H:::
** Maximum value not applicable
nter Data F10-Help End-Previous
Figure 33
This screen displays target factor values for the Surficial Aquifer. When entering target data, include
information only for wells screened in the selected aquifer. PREscore will account for targets in
overlying and/or interconnected aquifers. The total ground water targets value for the aquifer being
evaluated (Surficial Aquifer) and overlying aquifers, if any, is displayed at the bottom of the screen.
To enter population exposed to potential contamination...
CURSOR to the "Population Potential Contamination" position.
Press < ENTER >.
33
-------
Ground Water Pathway Target Population Screen
1
Tutorial Site
NAME. MRS Site Score 72.14
Ground Water -> Targets -> Population -> Surficial Aquifer
Potential Population by Distance
(Exclude wells listed below)
0 to 1/4 mile
Greater than 1/4 to 1/2 mile
Greater than 1/2 to 1 mile
Greater than 1 to 2 miles
Greater than 2 to 3 miles
Greater than 3 to 4 miles
Population by Individual Well
Well ID
1 Site Well #1
2 Baker Residence
Population
0.0
0.0
0.0
0.0
34.0
56.7
Dist.
(miles)
0.00
1.20
Well
Type
MW
DW
Data
Type
Level of
Concentr.
Level I
Potential
Population
Incls. Pot. Wells
0.0
0.0
0.0
5.0
34.0
56.7
Data
Type
Population
Served
N.A
5.0
Aquifer Target Population
Inter Data F10-Hetp Er
Score
O.OOE+00
O.OOE+00
O.OOE+00
7.00E-02
7.00E-01
4.00E-01
Value
N.A
N.A
1.00E+00
id-Previou
;
Figure 34
Populations drawing water from individual wells or wells within a distance category are entered on this
screen. Only potentially contaminated target populations can be entered in distance categories.
Actually contaminated target population must be entered associated with individual wells. Suppose
sampling reveals lead contamination (5.1 ppb) attributable to your site in a nearby well (Johnson family
well 0.2 miles from the site)...
CURSOR to the third row of "Population by Individual Well" column.
Type Johnson Well.
CURSOR to the "Dist." column.
Type 0.2.
CURSOR to the "Well Type" column.
Press < ENTER >.
34
-------
Ground Water Pathway Target Population Screen: Well Type Pop-Up Menu
Tutorial Site NAME.HRS Site Score 72.14
I
Ground Water -> Targets -> Population ->
Potential Population by Distance
(Exclude wells listed below)
0 to 1/4 mile
Greater than 1/4 to 1/2 mile
Greater than 1/2 to 1 mile
Greater than 1 to 2 mi les
Greater than 2 to 3 miles
Greater than 3 to 4 miles
Population by Individual Well
Well ID
2 Baker Residence
3 Johnson Well
Aquifer Ta
NTER-Select
Surficial Aquifer
Population
0.0
0.0
0.0
0.0
34.0
56.7
Dist.
(mi les)
1.20
Mon
Drir
Star
Well
Type
DW
Data
Type
Level of
Concent r.
Potential
Type of 'we 1 1
tor ing
iking Water
idby:Used Anni.
jally
Population
Incls. Pot. Wells
0.0
0.0
0.0
5.0
34.0
56.7
Data
Type
Population
Served
5.0
N.A
F10-Help Er
Score
O.OOE+00
O.OOE+00
O.OOE+00
7.00E-02
7.00E-01
4.00E-01
Value
N.A
N.A
1.00E+00
id-Previou!
Figure 35
CURSOR to "Drinking Water."
Press < ENTER >.
CURSOR to the "Level of Concentr." column.
Press < ENTER >.
Ground Water Pathway Sample Contaminants Screen
E
Tutorial Site NAME.HRS Site Score 72.14
Ground Water -> Targets -> Population -> Contaminants -> Surficiat Aquifer
Well ID -> Johnson Well
Sample Contaminants
Sample
Concentr.
ppb
Benchmarks/Screening C.(ppb)
MCL/MCLG
Cumulative Screening Index, S(C/SC)
Cancer
O.OE+00
RFD
O.OE+00
NTER-Select F2-Radionuclides F10-Help End-Previous
Figure 36
35
-------
Press < ENTER >.
Press .
Type Lead.
Press twice.
Press .
CURSOR to the "Sample Concentr." column.
Type 51.
Press < ENTER >.
To determine the level of contamination, the concentration you enter is compared to benchmark(s) for
the selected contaminant. In this case, the concentration is greater than the benchmark, so the
residents using this well are evaluated as Level I population. Multiple contaminants and concentrations
may be entered.
Press .
CURSOR to the "Population Served"
Type 4 (the Johnson family).
Press < ENTER >.
column.
Ground Water Pathway Target Population Screen: With Example
I
Tutorial Site NAME.HRS Site Score 72. 14
Ground Water -> Targets -> Population -> Surf icial Aquifer
Potential Population by Distance
(Exclude wells listed below)
0 to 1/4 mile
Greater than 1/4 to 1/2 mile
Greater than 1/2 to 1 mile
Greater than 1 to 2 miles
Greater than 2 to 3 miles
Greater than 3 to 4 miles
Population by Individual Well
Well ID
2 Baker Residence
3 Johnson Uel I
Population
0.0
0.0
0.0
0.0
34.0
56.7
Dist.
(miles)
1.20
0.20
Well
Type
DW
DU
Data
Type
Level of
Concentr.
Potential
Level I
Population
Incls. Pot. Wells
0.0
0.0
0.0
5.0
34.0
56.7
Data
Type
Population
Served
5.0
4.0
Aquifer Target Population
nter Data FlO-Help Er
Score
O.OOE+00
O.OOE+00
O.OOE+00
7.00E-02
7.00E-01
4.00E-01
Value
N.A
4.00E+01
4.10E+01
id-Previou:
Figure 37
You have recorded that the Johnson Well is exposed to Level I concentrations, and that the Johnson
family represents four Level I targets. If the Johnson's well had not been contaminated, their family
population would have been added to the "0 to 1/4 mile" distance category potential population.
Press .
The distance to nearest well factor has been automatically evaluated based on the target information
entered. The distance in miles may also be entered directly. Other ground water targets to be
evaluated include Resources and Wellhead Protection Area.
36
-------
CURSOR to the "Resources" position.
Press < ENTER >.
A resources pop-up menu appears:
Ground Water Pathway Targets Screen: Resources Factor Pop-Up Menu
E
Tutorial Site NAME. MRS Site Score 72.14
Ground Water -> Targets -> Surficial Aquifer
Factor Category and Factors Max
Distance to Nearest Well (miles) 50
Population Potential Contamination **
Population Level I Concentrations **
Population Level II Concentrations **
Population **
Value
50 / 1.200
1.00E+00
4.00E+01
O.OOE+00
4.10E+01
-mt
Resources NO +00
YF^
Ground Water Targets Total (this aquifer only) I **
Ground Water Targets Total (incl. overlying aquifers) I **
9.60E+01
9.60E+01
Type
** Maximum value not applicable
:NTER-Select F10-Help End-Previous
Figure 38
Select "YES" or "NO" by cursoring to your choice and pressing . The resources factor is
evaluated for every pathway based on pathway-specific criteria. The methodology for selecting a
resources value is the same for each pathway.
Press .
The Wellhead Protection Area factor is also scored using a pop-up menu.
CURSOR to the "Wellhead Protection Area" position.
Press < ENTER >.
37
-------
The Wellhead Protection Area pop-up menu appears:
Ground Water Pathway Targets Screen: Wellhead Protection Area Factor Pop-Up Menu
Tutorial Site
NAME.MRS
Site Score 72.14
Ground Water -> Targets -> Surficial Aquifer
Factor Category and Factors
Distance to Nearest Well (miles)
Population Potential Contamination
Population Level I Concentrations
Population Level II Concentrations
Population
Max
50
**
**
**
**
Value
50 / 1.200
1.00E+00
4.00E+01
O.OOE+00
4.10E+01
Type
No Wellhead Protection Area (WHPA)
Source with containment value greater than 0 lies within or above the WHPA
Observed ground water contamination from the site lies within the WHPA
None of the above; but there is a WHPA within the target distance limit
Ground Water Targets Total (incl. overlying aquifers)
**
9.60E+01
"I!!!!!!!!!
** Maximum value not applicable
ENTER-Select
F10-Help End-Previous
Figure 39
Press .
To return to the Summary Screen...
Press .
The site score now reflects the additions made while in the Ground Water Pathway section of the
program.
2.6 Surface Water Pathway
The Surface Water Pathway is composed of two components, the Overland Flow/Flood Component
and the Ground Water to Surface Water Component. While evaluation of the two is similar, the
Surface Water Pathway tutorial emphasizes the Overland Flow/Flood Component. Features unique to
the Ground Water to Surface Water Component are described in Section 2.6.4.
From the Summary Screen...
CURSOR to the "Likelihood of Release" column for any Surface Water Pathway threat.
Press < ENTER >.
38
-------
The following screen appears:
Surface Water Pathway Likelihood of Release Screen
E
Tutorial Site NAME.HRS Site Score 72.14
Surface Water -> Likelihood of Release
Factor Category and Factors
Observed Release
a. Containment for Overland Flow
Rainfall, 2-yr, 24-hr, (inches)
Drainage Area (acres)
Soil Group Designation
b. Runoff Factor
Distance to Surface Water (feet)
c. Distance to Surface Water Factor
Potential to Release by Overland Flow a * (b + c)
Potential to Release by Flood
Likelihood of Release
Max
550
10
25
25
500
500
550
Value
550
10
0.0
0.0
A
0
0.0
25
250
250
550
Type
NTER-Select F9-Segment Definition F10-Help End-Previous
Figure 40
Displayed on this screen are the likelihood of release factors for the Surface Water Pathway; they are
applied to all threats. Note the "F9-Segment Definition" prompt on the status line at the bottom of the
screen.
Press .
Watershed Description Screen
E
Tutorial Site
NAME.HRS Site Score 72.14
Surface Water -> Watershed Description
Ground Water to Surface Water
Segment Name
1 Robert's Creek
2 Potomac Segment #1
3 Potomac Segment #2
PPE (miles)
Segment Type
River
River
River
nter Data
Water
Type
Fresh
Fresh
Fresh
0.000
Start
Point
(mi)
0.00
1.20
4.89
Angle 9
End
Point
(mi)
1.20
4.89
15.00
175
Average
Flow
(cfs)
11
205
358
Type
Data
Type
F10-Help End-Previous
Figure 41
39
-------
The Watershed Description Screen is displayed. You access this screen from the Surface Water
Likelihood of Release Screen or from any of the surface water targets screens. Starting at the probable
point of entry (PPE), enter a segment name and select segment and water types. Enter the start point,
endpoint, and flow for each segment, up to a distance of 15 miles. Note that this methodology for
defining the surface water migration path is based on a linearly defined migration path (see Appendix
A for a discussion of branching migration paths). Define new segments wherever you have a change
in flow, type of surface water body, or fishery. When you specify a surface water target (e.g.,
drinking water intake), you only need to provide the target distance from the PPE; PREscore assigns
the appropriate dilution weighting factor and persistence value based on the segment definitions
entered here. If you need to change a flow rate, access the Watershed Description Screen, change
the flow, and PREscore updates the values for all targets on that segment to reflect the change.
Segments may be inserted or deleted using the < Insert> and < Delete > keys.
Press .
The Surface Water Pathway Likelihood of Release Screen is simpler than the Likelihood of Release
Screen for the Ground Water Pathway. Most values are entered directly, such as rainfall, drainage
area, soil group, and distance to surface water. Containment values reflect those entered in Waste
Characteristics (see Section 2.4) and can be accessed directly from this screen by pressing
at the "Containment" position. The "Potential to Release by Flood" value also reflects information
entered in Waste Characteristics (flood containment) and can be accessed directly.
Note that an observed release has been scored.
CURSOR to the "Observed Release" position.
Press < ENTER >.
Surface Water Pathway Samples Screen
E
Tutorial Site NAME.HRS Site Score 72.14
Surface Water -> Samples
Sample ID
1 Sample #1
2 Sample #2
Dist.
(miles)
0.000
0.000
Sample
Type
Sediment
Sediment
Data
Type
Level of
Concentration
DW
Level II
Level II
HFC
Level II
Level II
ENV
Level II
Level II
.NTER-Select FIO-Help End-Previous
Figure 42
40
-------
This is the Surface Water Pathway Samples Screen. Samples (sediment, aqueous, and tissue)
pertinent to all three threats are recorded on this screen. Samples are entered by recording the sample
name/identification, distance from the PPE to the sample, and sample type. Levels of concentration
for each threat, determined by PREscore, are displayed on the right side of the screen.
CURSOR to the "Sample Type" column for Sample #2.
Press < ENTER >.
To change the sample type,
CURSOR to "Aqueous."
Press < ENTER >.
Surface Water Pathway Sample Contaminants Screen
E
Tutorial Site NAME. MRS Site Score 72.14
Surface Water -> Samples -> Aqueous -> Contaminants
Sample ID -> Sample #2
Sample Contaminant
1 Mercury
2 Nickel
Sample
Concent r.
ppb
1.0E+00
2.0E+00
Benchmark/Screening Factor (ppb)
MCL/MCLG
2.0E+00
O.OE+01
AUQC Frsh
1.2E-02
1.6E+02
AUQC Salt
2.5E-02
8.3E+00
Cumulative Screening Index, S(C/SC)
Cancer R.
O.OE+00
O.OE+00
O.OE+00
RFD
1.1E+01
7.0E+02
O.OE+00
NTER-Select F10-Help End-Previous
Figure 43
Hazardous substances and their concentrations can be selected and recorded on this screen. The
methodology for selecting hazardous substances is described in Section 2.3. Notice that benchmarks
are displayed on the right side of the screen.
To return to the Summary Screen...
Press .
2.6.1 Drinking Water Threat Targets
To record target information for the Drinking Water Threat...
From the Summary Screen...
CURSOR to the "Targets" column for the Drinking Water Threat.
Press < ENTER >.
41
-------
The following screen appears:
Surface Water Pathway Drinking Water Threat Targets Screen
Tutorial Site NAME. MRS Site Score 72.14
Surface Water -> Drinking Water -> Targets
Factor Category and Factors
Nearest Intake
Population Potential Contamination
Population Level I Concentrations
Population Level II Concentrations
Population
Resources
Drinking Water Targets Total
Max
50
**
**
**
**
5
**
Value
O.OOE+00
1.60E+01
O.OOE+00
O.OOE+00
1.60E+01
O.OOE+00
1.60E+01
Type
** Maximum value not applicable
ENTER-Select F10-Help End-Previous
Figure 44
CURSOR to the "Population" value.
Press < ENTER >.
Surface Water Pathway Drinking Water Threat Target Population Screen
E
Tutorial Site NAME. MRS Site Score 72.14
Surface Water -> Drinking Water -> Targets -> Population
Drinking Water Intake
1 Potomac Water #3
Dist.
(mi les)
2.00
In-
take
DW
Population
Served
12849.0
Level of
Concent r.
Potential
Data
Type
Potential Contamination
Level 1 Concentrations
Level II Concentrations
Drinking Water Population Value
Value
1.63E+01
1 .60E+01
O.OOE+00
O.OOE+00
1 .60E+01
Inter Data F9-Segment -Definition F10-Help End-Previous
Figure 45
42
-------
On this screen, you enter drinking water intake information in the same manner that drinking water
wells are entered in the Ground Water Pathway section (see Section 2.5).
To return to the Summary Screen:
Press .
2.6.2 Human Food Chain Threat Targets
To record target information for the Human Food Chain Threat...
From the Summary Screen...
CURSOR to the "Targets" column for the Food Chain Threat.
Press < ENTER >.
Surface Water Pathway Human Food Chain Threat Targets Screen
E
Tutorial Site NAME.HRS Site Score 72.14
Surface Water -> Food Chain -> Targets
Fishery ID
(from segment ID)
1 Robert's Creek
2 Potomac Segment #1
3 Potomac Segment #2
Dilution
Weight
0.000000
0.010000
0.010000
Production
(Ibs/year)
1200.0
257900.0
300000.0
Data
Type
Level of
Concent r.
Level II
Potential
Potential
Food Chain Individual (max 50)
Potential Contamination
Level I Concentrations
Level II Concentrations
Human Food Chain Population Value
Surface Water Human Food Chain Targets Total
Value
3.00E+00
3.10E-01
3.10E-01
4.50E+01
6.20E-01
O.OOE+00
3.00E+00
3.62E+00
4.86E+01
Inter Data F9-Segment Definition F10-Help End-Previous
Figure 46
The fishery names displayed on this screen are taken directly from the surface water segments entered
on the Watershed Description Screen. The dilution weights shown are based on the flow rate or water
body type selected for each segment. To evaluate a segment as a fishery, a production value
(Ibs/year) must be entered. The "Level of Concentr." column accesses the Surface Water Pathway
Samples Screen where you enter sample information, including fish and benthic organism tissue sample
information.
To return to the Summary Screen...
Press .
43
-------
2.6.3 Environmental Threat Targets
To record target information for the Environmental Threat...
From the Summary Screen...
CURSOR to the "Targets" column for the Environmental Threat.
Press < ENTER >.
Surface Water Pathway Environmental Threat Targets Screen
1
Tutorial Site NAME. MRS Site Score 72.14
Surface Water -> Sensitive Environments -> Targets
Sensitive
Environment Name
1 Willy Moor
2 Smithson Park
Wetland
Frontage
(mi les)
3.60
N.A
Envir.
Value
100
25
Distance
(mi les)
8.00
8.70
Level of
Concentr.
Potential
Potential
Data
Type
Potential Contamination
Level I Concentrations
Level II Concentrations
Surface Water Environmental Targets Total
Value
1.00E-01
2.50E-02
1.25E-01
O.OOE+00
O.OOE+00
1.25E-01
Enter Data F9-Segment Definition F10-Help End-Previous
Figure 47
On this screen, enter the name of each sensitive environment, its wetland frontage or its rating value
(from MRS Table 4-23), and distance from the PPE. The "Level of Concentr." column accesses the
Surface Water Pathway Samples Screen where you enter sample information. Note, if you enter
wetland frontage, PREscore assigns the environment value.
To return to the Summary Screen...
Press .
2.6.4 Ground Water to Surface Water Component
On the Summary Screen, notice the message "Overland Flow, F7 to Toggle," shown in the shaded line
under Surface Water Pathway. To see scores for the Ground Water to Surface Water Component...
Press .
44
-------
Summary Screen: Surface Water Pathway Components Toggle
E
Tutorial Site NAME. MRS Site Score 72.14
PREscore Version 1.0
Pathway
Ground Water
Drinking Water
Food Chain
Environmental
Surface Water
Resident
Nearby
Soi I Exposure
Air
Likelihood
of Release
550
550
550
550
GW t(
550
25
550
Waste
Characteristics
32
32
320
320
3 SW, F7 to Togg
32
32
18
Targets
1.38E+03
8.00E+00
4.83E+01
6.25E-02
&
7.30E+01
9.00E-01
2.00E+02
Pathway
Score
100.00
1.71
100.00
0.13
100.00
15.57
0.01
15.58
24.01
NTER-Select F8-Files F9-Info F10-Hel£ End-Exit
Figure 48
Note the change in the displayed message and Surface Water Pathway scores.
CURSOR to the Surface Water "Likelihood of Release" position (any threat).
Press < ENTER >.
Ground Water Pathway Likelihood of Release Screen: Surficial Aquifer
E
Tutorial Site NAME. MRS Site Score 72.14
Ground Water -> Likelihood of Release -> Surficial Aquifer
Factor Category and Factors
Observed Release
a. Containment
Net Precipitation (inches)
b. Precipitation Factor
c. Depth to Aquifer
d. Travel Time
Potential to Release =a*(b+c+d)
Likelihood of Release
Max
550
10
10
5
35
500
550
Value
550
10
4.3
1
5
35
410
550
Type
NTER-Select FlO-Help End-Previous
Figure 49
45
-------
The Ground Water Pathway Likelihood of Release Screen for the shallowest aquifer appears. When
evaluating the Ground Water to Surface Water Component, this likelihood of release score is applied
to the Surface Water Pathway (see MRS for restrictions). You may change the information displayed;
however, PREscore also applies any changes to the Ground Water Pathway.
Press .
CURSOR to the "Targets" column for the Environmental Threat.
Press < ENTER >.
Press to access the Watershed Description Screen.
Watershed Description Screen: Ground Water to Surface Water Component
f
Tutorial Site NAME. MRS Site Score 72.14
Surface Water -> Watershed Description
Ground Water to Surface Water I PPE (miles)
Segment Name
1 Robert's Creek
2 Potomac Segment #1
3 Potomac Segment #2
Segment Type
River
River
River
Water
Type
Fresh
Fresh
Fresh
0.000
Start
Point
(mi)
0.00
1.20
4.89
Angle 6
End
Point
(mi)
1.20
4.89
15.00
175
Average
Flow
(cfs)
11
205
358
Type
Data
Type
Enter Data F10-Help End-Previous
Figure 50
Near the top of the screen is a data entry position entitled "PPE (miles)." If the Ground Water to
Surface Water Component PPE is different than the Overland Flow/Flood Component PPE, you must
enter the distance between the two. The distance can be a positive or negative number. In addition,
next to the "Angle 0" position you must enter the angle theta. These two values are the only unique
data entry requirements for scoring the Ground Water to Surface Water Component.
To return to the Summary Screen...
Press .
Press .
The scores now reflect the additions made while working through the Surface Water Pathway section
of the program.
46
-------
2.7 Soil Exposure Pathway
Once sources have been defined and accessibility/attractiveness values entered (see Section 2.4),
scoring the Soil Exposure Pathway becomes primarily a matter of entering target information.
2.7.1 Resident Population Threat
From the Summary Screen...
CURSOR to the "Targets" column for the Resident Population Threat.
Press < ENTER >.
Soil Exposure Pathway Resident Population Threat Screen
E
Tutorial Site NAME.HRS Site Score 72.14
Soil Exposure -> Residents
Factor Categories and Factors
Likelihood of Exposure
Resident Individual
Level I Concentrations Value/Population
Level II Concentrations Value/Population
Resident Population
Workers Factor Value / Number of Workers
Resources
Terrestrial Sensitive Environments
Resident Population Targets Total
Max
550
50
**
**
**
15
5
**
**
Value/Data
5.50E+02
4.50E+01
O.OOE+00 /O.O
2.30E+01 /23.0
2.30E+01
S.OOEi-OO /12.0
O.OOE+00
O.OOE+00
7.30E+01
Type
is iS
S:U.='i3:::::==
** Maximum value not applicable
nter Data F10-Help End-Previous
Figure 51
Likelihood of exposure and target information is displayed on a single screen. Even though you entered
this screen through the Targets factor category, you may change the Likelihood of Exposure score.
Likewise,if you enter this screen through the Likelihood of Exposure factor category, you may still enter
and edit targets information.
CURSOR to the "Likelihood of Exposure" position.
Press < ENTER >.
47
-------
The following screen appears:
Soil Exposure Pathway Likelihood of Exposure Screen
E
Tutorial Site NAME. MRS Site Score 72.14
Soil Exposure -> Likelihood of Exposure
Source Name
1 Waste Pile #1
2 Paint Waste Area #3
Level of
Concent r.
Level II
Level II
Data
Type
Attract./
Accessib.
50
50
Data
Type
Area (ft2) of
Contamination
12000
20000
Data
Type
INTER-Select F10-Help End-Previous
Figure 52
CURSOR to the "Level of Concentr." column for Waste Pile #1.
Press < ENTER > twice.
CURSOR to "Aldrin."
Press < ENTER >.
Press .
CURSOR to the "Concentr." column next to aldrin.
Type 1.23.
Press .
PREscore determines, based on the analytical information you entered, that Aldrin is present at Level
I concentrations.
To enter target information...
Press .
CURSOR to the "Level I Concentrations Value/Population" position.
Type 1.
Note that, for this pathway, you must determine whether a population is exposed to areas with Level
I and Level II concentrations (i.e., PREscore cannot make that determination).
To enter other target information...
CURSOR to the "Workers Factor Value / Number of Workers" position.
Type 160.
CURSOR to the "Terrestrial Sensitive Environments" position.
Press < ENTER >.
48
-------
The following screen appears:
Soil Exposure Pathway Resident Population Threat/Terrestrial Sensitive Environment Targets Screen
E
Tutorial Site NAME.HRS Site Score 72.41
Soil Exposure Residents -> Targets -> Terrestrial Sensitive Environments
Terrestrial Sensitive Environment Name
1
Terrestrial Sensitive Environments Factor Value
Rating
Value
0
Data
Type
0
Enter Data FIO-Help End-Previous
Figure 53
To enter a terrestrial sensitive environment...
Type Seashore Nat. Area.
CURSOR to the "Rating Value" column.
Type 25 (see MRS Table 5-5).
Press .
Press .
49
-------
The Soil Exposure Pathway Resident Population Threat Screen reappears:
Soil Exposure Pathway Resident Population Threat Screen: With Example
£
Tutorial Site NAME. MRS Site Score 72.82
Soil Exposure -> Residents
Factor Categories and Factors
Likelihood of Exposure
Resident Individual
Level I Concentrations Value/Population
Level II Concentrations Value/Population
Resident Population
Workers Factor Value / Number of Workers
Resources
Terrestrial Sensitive Environments
Resident Population Targets Total
Max
550
50
**
**
**
15
5
**
**
Value/Data
5.50E+02
5.00E+01
1.00E+01 /l.O
2.30E+01 /23.0
3.30E+01
1.00E+01 /160.0
O.OOE+00
2.50E+01
1.18E+02
Type
;=!!!;;;;!
[ill!
I-
;:::::::::::
iSSSS
** Maximum value not applicable
INTER-Select F10-Help End-Previous
Figure 54
The Resident Population Threat Targets score has been calculated based on the information you
entered.
To return to the Summary Screen...
Press .
2.7.2 Nearby Population Threat
To enter information for the Nearby Population Threat...
CURSOR to the "Targets" column for the Nearby Population Threat.
Press < ENTER >.
50
-------
The following screen appears:
Soil Exposure Pathway Nearby Population Threat Screen
I
Tutorial Site NAME. MRS Site Score 72.82
Soil Exposure -> Nearby Population Threat
Factor Categories and Factors
Attractiveness/Accessibi lity
Area of Contamination Value / Area (ft2)
Likelihood of Exposure
Nearby Individual
0 to 1/4 mile Value / Population
> 1/4 to 1/2 mile Value / Population
> 1/2 to 1 mile Value / Population
Population Within 1 Mile Factor Value
Nearby Population Target Totals
Max
100
100
500
1
**
**
**
**
**
Value/Data
5.00E+01
2.00E+01 / 32000
2.50E+01
O.OOE+00
4.00E-01 / 214.2
2.00E-01 / 123.0
3.00E-01 / 562.3
9.00E-01
9.00E-01
Type
:"'-::::::
"
iiiUii;!-!:
** Maximum value not applicable
nter Data F10-Help End-Previous
Figure 55
Once again, likelihood of exposure and target information are displayed on a single screen. Note that
the attractiveness/accessibility and area of contamination values, based on your previous input (Section
2.4), are displayed. You may change these values by cursoring to the "Likelihood of Exposure"
position and pressing < ENTER >, which takes you to the Soil Exposure Pathway Likelihood of
Exposure Screen discussed in Section 2.7.1.
To enter target data...
CURSOR to the "> 1/4 to 1/2 mile Value / Population" position.
Type 397.
CURSOR to the "> 1/2 to 1 mile Value / Population" position.
Type 221.
Press < ENTER >.
To return to the Summary Screen...
Press .
The site score now reflects the additions made while in the Soil Exposure Pathway portion of the
program.
51
-------
2.8 Air Pathway
Most of the factors in the Air Pathway Likelihood of Release factor category are source dependent and
automatically calculated by PREscore based on the source information you enter (see Section 2.4).
Therefore, scoring the Air Pathway consists primarily of entering target information.
From the Summary Screen...
CURSOR to the "Likelihood of Release" column for the Air Pathway.
Press < ENTER >.
Air Pathway Likelihood of Release Screen
E
Tutorial Site NAME. MRS Site Score 72.82
Air Pathway -> Likelihood of Release
Factor Category and Factors
Observed Release
Gas Potential to Release
Source: Waste Pile #1 , Containment Value
Particulate Potential to Release
Source: Waste Pile #1 , Containment Value
Particulate Migration Potential
Particulate Mobility Factor Value
Potential to Release
Likelihood of Release
Max
550
500
10
500
10
17
0.02
500
550
Value
550
340
10
280
10
0
0.00002
340
550
Type
::::;!!::
:::::
::::£:::::
ENTER-Select FIO-Help End-Previous
Figure 56
This screen summarizes likelihood of release information for the Air Pathway, displaying the highest
scoring source. To see a summary of potential to release information for all sources, cursor to either
the "Gas Potential to Release" or the "Particulate Potential to Release" position and press .
For example...
CURSOR to the "Gas Potential to Release" value.
Press < ENTER >.
52
-------
The following screen appears:
Air Pathway Gas Potential to Release Screen
F
Tutorial Site NAME. MRS Site Score 72.82
Air Pathway -> Likelihood of Release -> Gas Potential to Release Summary
Source Name
1 Waste Pile #1
2 Paint Waste Area #3
Source Gas
Containment
Value
10
10
Source
Type
Factor
17
19
Gas
Migration
Potential
17
11
Potential to Release (highest source: Waste Pile #1 )
Gas
Potential
to Release
340
300
340
>gUp or PgDn to Browse F10-Help End-Previous
Figure 57
This screen provides a summary of source information; however, no values can be changed. The
and keys can be used to browse if more than seven sources have been defined.
Press .
CURSOR to the Gas Potential to Release, "Source: Waste Pile #1, Containment Value" position.
Press < ENTER >.
53
-------
The following screen appears:
Air Pathway Containment Screen
E
Tutorial Site NAME. MRS Site Score 72.82
Air Pathway -> Likelihood of Release -> Source Containment
Source Name
1 Waste Pile #1
2 Paint Waste Area #3
Source
Type
Waste P.
Surf .Imp
Air Containment (Max 10)
Gas
10
10
Data
Type
Particulate
10
10
Data
Type
JNTER-Select FlO-Hetp End-Previous
Figure 58
Sources are displayed on this screen, along with source types and air containment values. The
containment values may be changed; however, sources can only be added or deleted in the Waste
Characteristics portion of the program (see Section 2.4).
Press .
Two factor values must be entered on the Air Pathway Likelihood of Release Screen, particulate
migration potential and particulate mobility.
CURSOR to the "Particulate Migration Potential" position.
Press < ENTER >.
CURSOR to "6."
Press < ENTER >.
CURSOR to the "Particulate Mobility Factor Value" position.
Press < ENTER >.
CURSOR to "0.0002."
Press < ENTER >.
To return to the Summary Screen...
Press .
To enter target information...
CURSOR to the "Targets" column for the Air Pathway.
Press < ENTER >.
54
-------
Air Pathway Targets Screen
E
Tutorial Site NAME. MRS Site Score 72.82
Air Pathway -> Targets
Factor Category and Factors
Distance to Nearest Individual (miles)
Population Level I Concentrations
Population Level II Concentrations
Population Potential Contamination
Population
Resources
Sensitive Environments
Air Pathway Targets Total
Max
50
**
**
**
**
5
**
**
Value
45 /0.050
O.OOE+00
1.20E+01
1.38E+02
1.50E+02
5.00E+00
4.35E-02
2.00E+02
Type
SB
::::::::::::
!i
** Maximum value not applicable
nter Data F10-Help End-Previous
Figure 59
Section 2.3, "General Operation" discussed target population and sampling data entry for the Air
Pathway. Additional Air Pathway data entry is discussed here.
CURSOR to the "Sensitive Environments" value.
Press < ENTER >.
Air Pathway Sensitive Environment Targets Screen
E
Tutorial Site NAME. MRS Site Score 72.82
Air Pathway -> Targets -> Sensitive Environments
Sensitive Environment Name
1 Bogg's Swamp
2 Camden Rec. Area
3 Smithson Park
Wetland
Acreage
23.5
N.A
N.A
Rating
Value
25
25
25
Level of
Concent r.
Potential
Potential
Potential
Distance
(miles)
1/2-1.0
3.200
8.700
Data
Type
Air Pathway Sensitive Environments Actual Contamination
Air Pathway Sensitive Environments Potential Contamination
Air Pathway Sensitive Environments Factor Value
Value
4.00E-02
3.50E-03
O.OOE-00
O.OOE+00
4.35E-02
4.35E-02
nter Data F10-Help End-Previous
Figure 60
55
-------
CURSOR to the first blank line.
Type Wetland #2.
CURSOR to the "Wetland Acreage" column.
Type 20.25.
Press < ENTER >.
PREscore assigns a rating value (25) for this sensitive environment. To enter a sensitive environment
that is not a wetland, skip directly from the "Sensitive Environment Name" column to the "Rating
Value" column and enter a value determined from MRS Table 4-23.
CURSOR to the "Level of Concentr." column.
Press < ENTER >.
Air Pathway Samples Screen
I
Tutorial Site NAME.HRS Site Score 72.82
Air Pathway -> Samples
Sample Name
1 Air Sample #1
Distance
(miles)
0.000
Level of
Concentration
Level II
Data
Type
E*
Enter Data F10-He]j> End-Previous
Figure 61
This is the Air Pathway Samples Screen; data entry was discussed in Section 2.3. To return to the
sensitive environments screen...
Press .
CURSOR to the "Distance (miles)" column for Wetland #2.
Press < ENTER >.
CURSOR to "Greater than 3 to 4 miles."
Press < ENTER >.
CURSOR to the "Distance (miles)" column for Smithson Park.
Type 8.5.
Wetland #2 and Smithson Park are targets exposed to potential contamination, requiring the application
of a distance weight. Distance to wetlands is recorded using distance categories from a pop-up menu,
while the discrete distance to other sensitive environments must be typed. PREscore applies the
distance weight and calculates a factor value for each sensitive environment.
56
-------
To return to the Summary Screen...
Press .
The scores now reflect the additions made while in the Air Pathway portion of the program.
2.9 Radionuclides
Scoring radionuclides (radioactive hazardous substances) requires only slight deviations from the
standard procedures described elsewhere in this manual. Special procedures are required for the
entry/selection of specific radionuclides (source-related and sampling information) and for entry of
hazardous waste quantity information. Entering likelihood of release and target information requires
no special instructions for radionuclides.
To score radionuclides, you must first designate a radioactive source. From the Summary Screen...
CURSOR to the "Waste Characteristics" column (for any pathway or threat).
Press < ENTER >.
CURSOR to the third row of the "Source Name" column.
Type Radium Waste.
CURSOR to the "Vol/Area Value" column.
Press < ENTER >.
CURSOR to the "Source Type" position.
Press < ENTER >.
Source Information Screen: Source Type Pop-Up Menu
E
Tutorial Site NAME. MRS Site Score 72.82
Waste Characteristics -> Source -> Vol/A
Factor Categories and Factors
Source Type
Secondary Source Type
Number of Source Contaminants
Source Volume
Source Type
Drums
Non-drum Containers
Contaminated Soil
Land Treatment
Landfill
Surface Impoundment
Waste Pile
Other
Unallocated
Radioactive Source
Value
Drums
N.A.
0
0
Source Area | ft2 | N.A.
Type
NTER-Select F10-Help End-Previous
Figure 62
CURSOR to "Radioactive Source."
Press < ENTER >.
CURSOR to "Below 2 times background levels."
Press < ENTER >.
57
-------
Sources Information Screen: With Example
£
Tutorial Site NAME. MRS Site Score 72.82
Waste Characteristics -> Source -> Vol/Area -> Radium Waste
Factor Categories and Factors
Source Type
Secondary Source Type
Number of Source Contaminants
Source Volume
Source Area
Units
Count
cu yd
ft'
Value
Radioact
N.A.
0
N.A.
N.A.
Type
INTER-Select F10-Help End-Previous
Figure 63
Notice that the source volume and area positions display "N.A." (not applicable). This reflects the MRS
methodology restricting radionuclide-related hazardous waste quantity evaluation to constituent or
wastestream data.
To record hazardous substances associated with this source...
CURSOR to the "Number of Source Contaminants" position.
Press < ENTER >.
58
-------
The following screen appears:
Source Radionuclide Screen
E
Tutorial Site NAME. MRS Site Score 72.82
Source / Soil Exposure -> Radionuclides
Source ID -> Radium Waste
Sample Radionuclides
Concent
pCi/kg
Liq
Y/N?
2 ft
or
Less
Screening pCi/Kg
UMTRCA
Cumulative Screening Index, Z(C/SC)
CR- Gamma
O.OE+00
CR- Ingest
O.OE+00
NTER-Select F2-Radionuclides F10-Help End-Previous
Figure 64
From this screen you select the radionuclide substances associated with the source.
Press (note the message on the status line).
Radionuclide Selection Screen
04/16/91 Rad Chemical Name
Radium 226 (radionuclide)
Radon 222 (radionuclide)
Uranium 233 (radionuclide)
Uranium 234 (radionuclide)
Uranium 235 (radionuclide)
Uranium 238 (radionuclide)
Synonym
Page 1 of 1
07440-14a4
10043-92a2
07440-61a1
07440-61b1
07440-61c1
07440-61d1
Ti PgDn PgUp End Home F2-Search F3-Next ENTER-(De)Select MO-Help
Figure 65
59
-------
The list of radionuclide hazardous substances appears. The selection of specific radionuclides follows
the methodology discussed previously for hazardous substance selection (see Section 2.3).
Non-radioactive substances cannot be assigned to a source defined as "Radioactive source." To
evaluate a single source with mixed wastes (both radionuclides and non-radioactive substances) you
must define the source twice, once as a radioactive source and once as a non-radioactive source.
To enter radionuclide waste quantity information...
Press three times.
CURSOR to the "Wastestream Value" column.
Press < ENTER >.
Type Radium Wastestream.
CURSOR to the "HCQ" column.
Press < ENTER >.
Source Hazardous Waste Quantity Radionuclide Wastestream Screen
E
Tutorial Site NAME.HRS Site Score 72.82
Waste Characteristics -> Source -> Wastestream -> Radionuclides ->
Radium Waste Radium Wastestream
Radionuclides
Quantity Deposited in Wastestream(ycB)
Concentration
0.0
Units
Liq.
Qua I
Wastestream HCQ
HCQ
O.OOE+00
=NTER-Select FIO-Help End-Previous
Figure 66
At this screen you enter wastestream constituents and their concentrations as discussed in Section
2.4. Note that concentrations must be entered in picoCuries per gram (pCi/g).
Press .
To enter the wastestream quantity deposited...
CURSOR to the "Quantity" column.
Type 500.
Note that quantity units are restricted to cubic yards.
Press .
60
-------
The following screen appears:
Waste Characteristics Sources Screen: With Example
E
Tutorial Site NAME. MRS
Site Score 72.82
Waste Characteristics -> Sources
Source Name
2 Paint Waste Area #3
3 Radium Waste
Migration Pathway
Ground Water
Surface Drinking Water
Surface Water Food Chain
Surface Water Environment
Soil Resident Threat
Soil Nearby Threat
Air
Migration
Pathways
GW-SE-A
Vol/Area Was test ream
Value Value
9.92E+01 4.00E-01
RAD-N.A. 9.09E+02
Contaminant Values
Toxi city/Mobility 1.00E+04
Tox. /Persistence 1.00E+04
Tox./Persis./Bioacc. 5.00E+08
E tox/Pers i s . /Ebi oacc . 5 . OOE+08
Toxicity 1.00E+04
Toxi city 1.00E+04
Toxicity/Mobility 2.00E+03
.NTER-Select
HWQVs
100
100
100
100
100
100
100
HUQ
Value
9.92E+01
9.09E+02
WCVs
32
32
320
320
32
32
18
F10-Help End-Previous
Figure 67
A hazardous waste quantity value (909) has been determined for the radioactive source. This value
has not affected the site score because containment values have not yet been assigned to the
radioactive source via the "Migration Pathways" column.
Special procedures are also required for entry and selection of radionuclide sampling information.
To return to the Summary Screen...
Press .
CURSOR to the Air Pathway "Likelihood of Release" column.
Press < ENTER >.
CURSOR to the "Observed Release" value.
Press < ENTER >.
CURSOR to the second row.
Type Air Sample #2.
CURSOR to the "Level of Concentration" column.
Press < ENTER >.
61
-------
Air Pathway Sample Contaminants Screen: Radionuclides
E
Tutorial Site NAME. MRS Site Score 72.82
Air Pathway -> Samples -> Contaminants
Sample ID -> Air Sample #2
Sample Contaminants
Sample
Concentr.
jig/mS
Benchmarks/Screening C(fig/m3)
NAAQS
Cumulative Screening Index, S(C/SC)
Cancer R.
O.OE+00
RFD
O.OE+00
ENTER-Select F2-Radionuclides F10-Help End-Previous
Figure 68
Note that the status line at the bottom of the screen says "F2-Radionuclides." To access the listing
of radionuclide substances from any sample screen...
Press .
Radionuclides and non-radioactive substances cannot be selected for a single sample. Instead, you
must enter the sample twice, and record radionuclide and non-radioactive substances separately.
To return to the Summary Screen...
Press .
2.10 Conclusion
You have now reviewed all components of PREscore. You should, at this point, be able to enter data
to describe waste characteristics, determine the likelihood of release of hazardous substances to the
environment, and determine the numbers and characteristics of targets exposed or potentially exposed
to contamination.
To save your file and exit PREscore...
Press .
CURSOR to "Exit to DOS, save changes."
Press < ENTER >.
To save your file under its current name...
Press < ENTER >.
You should now be at a DOS prompt or shell menu (if your system is so configured).
62
-------
CHAPTER 3
PRINTING
3.1 Introduction: PREprint Computer Program
The program to print PREscore site file information is called PREprint. It is a separate program from
PREscore and must be accessed from the DOS prompt. PREprint retrieves site files created with
PREscore and extracts entered or calculated information. The procedures for executing PREprint are
discussed below. PREprint is capable of producing HRS scoresheets, a complete HRS documentation
record, and the NPL Characteristics Data Collection form.
Some parts of the printing operation require familiarity with DOS and technical knowledge of the
printer. Consult your systems administrator for first-time setup (LAN users see Appendix C for special
network printing instructions).
From the DOS prompt...
Type PREPRINT.
Press < ENTER >.
If the program has been properly installed, the following screen appears:
PREprint File System Screen
E
Site Score 0.00
PREscore Data Files -> C:\PRESCORE
Name Date Time Size
NAME 09/12/91 12:35 10979
TUTORIAL 09/11/91 13:20 10271
Site Name CERCLIS Number
Tutorial Site TXD123456789
Tutorial Site TXD123456789
NTER-Select F2-Change Directory F10-Help End-Exit
Figure 69
This looks and operates much like the file system in the PREscore program (see Section 2.2).
CURSOR to your NAME file.
Press < ENTER >.
63
-------
The following screen appears:
PREprint Menu Screen
E
Tutorial Site NAHE.HRS Site Score 72.82
PRINTER = LPT1 PREscore PREprint
Select File
Select Printer
Select Printer Options
Print Complete Report
Print Site and Source Info
Print Scoresheets
Print NPL Data Form
Print Ground Water Pathway
Print SW: Overland Flow Comp.
Print SU: GW to SW Comp.
Print Soil Exposure Pathway
Print Air Pathway
Print Reference List
Reset the Printer File
Exit
ENTER-Select F10-Help End-Previous
Figure 70
From the PREprint menu you can select and configure your printer and print HRS scoresheets and
documentation, reference list, and NPL Characteristics Data Collection form. Note that HRS
scoresheets and documentation can be printed by individual pathways or for all pathways.
3.2 Printer Setup and Print Options
The "PRINTER = " heading at the top of the screen indicates the location to which you are sending
the printout (in this case LPT1). To see the different destinations to which you may print...
CURSOR to "Select Printer."
Press < ENTER >.
64
-------
The following screen appears:
Printer Selection Pop-Up Menu
Tutorial Site
NAME.MRS
Site Score 72.82
PRINTER = LPT1 PREscore PREprint
Select File
Select Printer
Select Printer Options
Print Complete Report
Print Site and Source Info
Print Scoresheets
Print NPL Data Form
Print Ground Water Pathway
Print SW: Overland Flow Comp.
Print SW: GW to SW Comp.
Print Soil Exposure Pathway
Print Air Pathway
Print Reference List
Reset the Printer File
Exit
Print to Disk File
Print to Printer Port: LPT1
Print to Printer Port: LPT2
Print to Communications Port: COM1
Print to Communications Port: COM2
ENTER-Select
FIO-Help End-Previous
Figure 71
The printer selection menu allows you to send a file to a disk, modem, or printer port destination. Note
that most printers are connected to the LPT1 port.
CURSOR to the "Print to Printer Port: LPT1" option.
Press < ENTER >.
Note the message on the status line requesting you reset the printer file to incorporate your printer
choice.
To reset the printer file...
Press < ENTER >.
CURSOR to "Select Printer Options."
Press < ENTER >.
65
-------
The following screen appears:
Printer Options - Set Graphics Mode Pop-Up Menu
Tutorial Site
NAME.MRS
Site Score 72.82
PRINTER = LPT1 PREscore PREprint
Select File
Select Printer
Select Printer Options
Print Complete Report
Print Site and Source Info
Print Scoresheets
Print NPL Data Form
Print Ground Water Pathway
Print SU: Overland Flow Comp.
Print SU: GU to SU Comp.
Print Soil Exposure Pathway
Print Air Pathway
Print Reference List
Reset the Printer File
Exit
1. ASCII Characters 0 - 255
2. ASCII Characters 0 - 127
ENTER-Select
FlO-Help End-Previous
Figure 72
The printer options selection is where you tell PREprint the capabilities of your printer. (Printer options
can be saved to disk, so the following printer configuration procedures may only need to be performed
once for each site file.) The "Set Graphics Mode" pop-up menu presents two options for ASCII
characters. Some printers can reproduce "high order" ASCII characters such as the lines in the above
screen, whereas other printers will produce nonsense characters, italic letters, or blanks. If your printer
cannot reproduce high order ASCII characters, select "ASCII Characters 0 - 127." If you are unsure
of your printer's capabilities, no harm will be done by choosing the high order option to find out...
CURSOR to the "ASCII Characters 0 - 255" option.
Press < ENTER >.
66
-------
The following screen appears:
Printer Options - Tabstops Pop-Up Menu
Tutorial Site
NAME.HRS
Site Score 72.82
PRINTER = LPT1 PREscore PREprint
,_ ._,.
Select File
Select Printer
Select Printer Options
Print Complete Report
Print Site and Source Info
Print Scoresheets
Print NPL Data Form
Print Ground Water Pathway
Print SW: Overland Flow Comp.
Print SW: GU to SU Comp.
Print Soil Exposure Pathway
Print Air Pathway
Print Reference List
Reset the Printer File
Exit
YES
NO
ENTER-Select
F10-Help End-Previous
Figure 73
The next option asks if you want tabstops used in the output (as opposed to spaces). Some printers
evaluate tabs differently than others. Choose the "YES" option initially, but if problems appear in the
alignment of columns in printouts, go through this procedure again and select the "NO" option.
CURSOR to the "YES"
Press < ENTER >.
option.
Printer Options - Printer Control Codes Pop-Up Menu
Tutorial Site
NAME.HRS
Site Score 72.82
PRINTER = LPT1 PREscore PREprint
Select File
Select Printer
Select Printer Options
Print Complete Report
Print Site and Source Info
Print Scoresheets
Print NPL Data Form
Print Ground Water Pathway
Print SW: Overland Flow Comp.
Print SW: GW to SW Comp.
Print Soil Exposure Pathway
Print Air Pathway
Print Reference List
Reset the Printer File
Exit
NO
YES
RESET 27/69X
BOLD 27/40/11 5/5 1/66/
LIGHT 27/40/1 15/48/66/
ENTER-Select
Figure 74
67
-------
The final printer option allows you to define "control codes" for alternating boldface and normal type
in your printouts. Use of this capability is optional, but it produces a more readable printout. The
codes shown in Figure 74 are for the Hewlett-Packard LaserJet II, III, and Hip Series printers. Consult
your printer manual for the codes appropriate for your printer. Printer control codes for IBM ProPrinter,
EPSON, and OKIDATA printers are provided below. If your printer code information is not immediately
available, you can proceed without entering any.
Printer Control Codes for Common Printers
Code Type IBM ProPrinter/EPSON OKIDATA
(emphasized) (enhanced)
RESET blank blank
BOLD 27/69/ 27/727
LIGHT 27/70/ 27/73/
CURSOR to the "YES" option if you want to enter different codes.
Type in the appropriate control codes.
Press < ENTER >.
You have now configured the printer and are ready to print.
Preprint allows you to print HRS scoring information in a variety of ways. The "Print Complete Report"
option prints a complete HRS documentation record (HRS scoresheets, documentation, reference list,
and NPL Characteristics Data Collection form). The components of the HRS documentation record may
also be printed individually. The "Print Scoresheets" option prints HRS scoresheets for all pathways.
The "Print Site and Source Info" option prints site administrative information and HRS scoring and
documentation information regarding sources. The "Print Reference List" option prints the reference
list. The "Print NPL Data Form" option prints the NPL Characteristics Data Collection form.
HRS scoresheets and documentation may also be printed by pathway.
To print HRS information for a particular pathway (in this case, the Ground Water Pathway)...
CURSOR to the "Print Ground Water Pathway" option.
Press < ENTER >.
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The following screen appears:
Ground Water Pathway Print Pop-Up Menu
Tutorial Site
NAME.MRS
Site Score 72.82
PRINTER = LPT1 PREscore PREprint
Select File
Select Printer
Select Printer Options
Print Complete Report
Print Site and Source Info
Print Scoresheets
Print NPL Data Form
Print Ground Water Pathway
Print SW: Overland Flow Comp.
Print SU: GU to SW Comp.
Print Soil Exposure Pathway
Print Air Pathway
Print Reference List
Reset the Printer File
Exit
Pathway ( Print All )
Pathway Scoresheets
Pathway Documentation
ENTER-Select
FlO-Help End-Previous
Figure 75
The pathway print menu provides the option of printing MRS Scoresheets, MRS documentation record
for the pathway, or both. To print the Ground Water Pathway scoresheets...
CURSOR to the "Pathway Scoresheets" option.
Press < ENTER >.
The scoresheets should now print. Messages on the status line will indicate the generation and
printing of the scoresheets. You may abort a printing operation by pressing .
The procedure described above is applicable to each pathway. Note that the Surface Water Pathway
is divided into its two components, Overland Flow/Flood and Ground Water to Surface Water.
Each time you print, you generate a printer file that must be erased, or reset, prior to any subsequent
print operations. PREprint prompts you each time a reset is necessary; however, you may also select
"Reset the Printer File" to erase the contents of the print file that you have printed.
To exit PREprint...
CURSOR to the "Exit" option.
Press < ENTER >.
69
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The following screen appears:
Save Printer Configurations Pop-Up Menu
Tutorial Site NAME.HRS Site Score 72.82
I
PRINTER = LPT1 PREscore PREprint
Select File
Select Printer
Select Printer Options
Print Complete Report
Print Site and Source Info
Print Scoresheets
Print NPL Data Form
Print Ground Water Pathway
Print SW: Overland Flow Comp.
Print SW: GW to SW Comp.
Print Soil Exposure Pathway
Print Air Pathway
Print Reference List
Reset the Printer File
Exi t
rSave Printer Configuration Changes ? -<
NO
YES |
ENTER-Select F10-Help End-Previous
Figure 76
If you made changes under "Select Printer" or "Printer Options," the program asks if you want to
"Save Printer Configuration Changes ?" before exiting. If you make no changes you will exit directly
to the DOS prompt.
CURSOR to "YES" to save changes.
Press < ENTER >.
You have now exited the PREprint program and have returned to the DOS prompt. If you would like
to return to PREscore...
Type PRESCORE.
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INDEX
Air Pathway 52
Likelihood of Release 52
Containment 21,52
Gas Potential to Release 53
Observed Release 52
Paniculate Migration 54
Paniculate Mobility 54
Paniculate Potential to Release 54
Sample Data 11,56
Targets 54
Distance to Nearest Individual 9,54
Potential Population 10
Level I Population 55
Level II Population 55
Resources 55
Sensitive Environments 55
Documentation Feature 14
Exiting the Program 18
File System 7
File Management 3
General Operation 8
Ground Water Pathway 29
Aquifer Description 29
Karst Aquifer 29
Likelihood of Release 30
Containment 21,30
Depth to Aquifer 30
Net Precipitation 30
Observed Release 30
Precipitation Factor 30
Travel Time 30
Sample Data 34
Targets 33
Distance to Nearest Well 33
Distance Category Population 33
Individual Well Population 34
Potential Population 33
Level I Population 36
Level II Population 33
Resources 37
Wellhead Protection Area 38
Hardware Requirements 2
Help Screens 10
Keyboard Functions 8
LAN Usage C-1
NPL Characteristics Data Collection Form 17
Password Protection 7
Printing 63
Radionuclides 57
Radioactive Source 57
Radionuclide Substances 58
71
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Sample Data 61
Waste Quantity 60
Reference List 15
Retrieving a File 7
Saving a File 18
Scoring Limitations A-1
Security 7
Software Installation 3
Soil Exposure Pathway 47
Nearby Threat 51
Area of Contamination 48,51
Attractiveness/Accessibility 21,48,51
Nearby Individual 51
Population Within 1 Mile 51
Resident Threat 47
Level I Population 47
Level II Population 47
Likelihood of Exposure 47
Resident Individual 47
Resources 47
Sample Data 48
Terrestrial Sensitive Environments 49
Workers 48
Status Line 7
Surface Water Pathway 38
Drinking Water Threat 41
Intakes 42
Nearest Intake 42
Potential Population 42
Level I Population 42
Level II Population 42
Resources 42
Environmental Threat 44
Sensitive Environments 44
Wetlands 44
Level of Concentration 44
Ground Water to Surface Water Component 44
Angle Theta 46
Human Food Chain Threat 43
Fisheries 43
Production 43
Level of Concentration 43
Likelihood of Release 39
Containment 21,39
Distance to Surface Water 39
Drainage Area 39
Flood Frequency 21
Rainfall 39
Runoff 39
Overland Flow/Flood Component 38
Probable Point of Entry 40
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Sample Data 40
Aqueous 41
Sediment 41
Fish Tissue 41
Benthic Organisms 41
Watershed Description 39
Water Segment/Body Type 39
Water Type 39
Updating Site Files B-1
Waste Characteristics 20
Sources 20
Containment 21
Contaminants 24
Source Type 23
Waste Quantity 26
Constituent 27
Volume/Area 26
Wastestream 26
73
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APPENDIX A
PRESCORE SCORING LIMITATIONS
PREscore directly automates the HRS in nearly all aspects of site scoring; however, there are a few
unique and/or complex scoring situations that are not directly accommodated by PREscore
programming. These are:
Multiple watersheds
Branching surface water migration path
Single aquifers which contain both karst and non-karst conditions
These three situations can be scored if specific PREscore data entry methodology is followed as
described below:
Multiple Watersheds - PREscore allows for evaluation of only one watershed at a time; however,
PREscore site files, and all the information they contain, can be copied. To evaluate more than one
watershed for a site, copy or save the one watershed site file with a different name. Retrieve the new
file and replace the existing watershed information with information for the second watershed. The
surface water pathway score will be the result of the evaluation of the second watershed. Since the
rest of the information in the site file (the other pathways) is unchanged, the site score also reflects
the evaluation of this second watershed. Compare the surface water pathway scores and retain the
site file with the highest scoring watershed. You may then delete the other site file(s) and give the
highest scoring watershed site file the proper file name.
Branching Surface Water Migration Path - PREscore allows entry and definition of individual surface
water segments. However, PREscore requires that these segments be entered linearly, with no two
segments assigned the same, or overlapping, distance intervals from the probable point of entry (PPE).
To define branching water segments, one branch should be entered as a linear path to the target
distance limit. The remaining branches should be entered as linear paths added to the end of the
original branch (i.e., the distance interval for the secondary branch(es) begins at the end of the target
distance limit for the original branch). Since surface water targets are evaluated on the flow
characteristics of the segments, not distance from the site, the site score is not affected by this
method.
Single Aquifers Which Contain Both Karst and Non-karst Conditions - PREscore allows the evaluation
of both karst and non-karst aquifers; however, an aquifer evaluated by PREScore must be defined as
one or the other, not both. In cases were an aquifer contains both karst and non-karst conditions,
PREscore requires that the aquifer be defined and evaluated as two aquifers, a karst aquifer and a non-
karst aquifer.
In the future, EPA will provide individual "PREscore Scoring Fact Sheets" that provide detailed
instructions for the application of each of the PREscore data-entry methodologies described above.
In addition, there are three other situations that PREscore programming cannot evaluate. These are:
Ground water injection wells to non-surficial aquifers
Removal actions
Calculation of index I for mixed wastes
A-1
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If these situations are pertinent to a site's HRS evaluation, calculations will have to be performed
manually.
EPA believes that PREscore is capable of evaluating most sites without complications; however, each
new site may present unique HRS scoring conditions. Therefore, other problematic situations may
arise. If you encounter a scoring situation that you cannot accommodate within PREscore's
framework, contact your EPA Regional computer contact and provide him/her with a complete
description of the situation.
A-2
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APPENDIX B
UPDATING SITE FILES
The PREscore software package, most notably the hazardous substance information file, will be
updated periodically. In order to assure that a site has been scored using the most recent hazardous
substance information, the site file must be updated using the latest version of PREscore.
Updating site files does not require reentry of all site information. Rather, as the updates will chiefly
involve the modification and addition of information contained in PREscore's hazardous substance
information file (PRESCORE.TCL), only the hazardous substance information need be reentered.
PREscore alerts the user if a site has been scored with outdated hazardous substance information.
Each time a site file is retrieved into PREscore, the version number (date) of the hazardous substance
information used to score that site is automatically compared with the version number (date) of the
hazardous substance information currently being utilized by PREscore. If the version numbers do not
match, the program will ask if you wish to update the site file (see Figure B-1). If you choose to
update the site file, PREscore will erase all of the hazardous substances that were previously entered
and you must reenter all substances into the appropriate places in PREscore. A site file that has been
scored using outdated hazardous substance information cannot be retrieved into PREscore without
going through the update process.
Site File Updating Message
Site Score 0.00
PREscore Data Files -> A:\
PRESCORE.TCL Version Mismatch
The hazardous substance information file (PRESCORE.TCL) currently in the
PREscore directory is different from the one used to evaluate the site.
The selected site file needs to be updated using the current PRESCORE.TCL
file before access to PREscore will be permitted. When updating this
site file, PREscore will automatically delete all hazardous substances
previously entered. You must then reenter all of those hazardous
substances using PREscore and the current PRESCORE.TCL file.
Return to PRESCORE File System Screen
Continue and Update using the current PRESCORE.TCL file
ENTER-Select
Figure B-1
B-1
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APPENDIX C
NETWORK (LAN) USER INSTRUCTIONS
The PREscore and PREprint programs (PREscore software) were designed to operate as interactive,
single-user programs; however, they can be installed and used on a multi-user system, such as a local
area network (LAN), with some restrictions. As PREscore software does not possess multi-user
capability, PREscore and PREprint can only be used by one user at a time, even in a network
environment. In addition, installation of the software and printing to a printer require LAN-specific
operations. These are provided below:
INSTALLATION
To install PREscore software on a LAN workstation you must first exit the system/applications shell
menu. The menu should have an "Exit to DOS" option. Remember to consult the LAN systems
administrator before you attempt PREscore software installation.
CURSOR to the "Exit to DOS" option.
Press < ENTER >.
A letter prompt, corresponding to the hard drive, should appear. To create a PREscore subdirectory
on the hard drive...
Type md PRESCORE (make a directory called PRESCORE).
Press < ENTER >.
To access that subdirectory...
Type cd PRESCORE (change directory to the PRESCORE directory).
To load the PREscore software files into the PRESCORE subdirectory...
Type copy a:*.* (if the PREscore or PREprint disk is in drive a:).
To begin the programs...
Type PRESCORE or PREPRINT.
PRINTING
To print to a printer, while operating PREprint on a LAN, the PREprint "Print to a disk file" option must
be utilized. PREprint cannot print directly to a printer on a network. After printing to a disk file, the
standard LAN print procedures may be employed to print the desired PREscore information to a printer.
To print to a disk file...
From the PREprint menu,
CURSOR to the "Select Printer" option.
Press < ENTER >.
C-1
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CURSOR to the "Print to Disk File" option.
Press < ENTER >.
Type in the name of the file and the disk drive to which the information is to be printed (for example,
"a:SITE.PRT").
Press < ENTER >.
CURSOR to the "Select Printer Options" option.
Press < ENTER >.
CURSOR to the "ASCII Characters 0 - 225" option.
Press < ENTER >.
CURSOR to the "YES" option.
Press < ENTER >.
You should be at the Printer Control Codes Pop-Up Menu.
CURSOR to "Yes".
Press < ENTER >.
Erase any existing codes by typing spaces over them.
Press < ENTER >.
You have now configured PREprint to print to a disk file.
Select the desired print task...
Press < ENTER >.
The information now exists on the disk file defined earlier (example a:site.prt). After exiting PREprint,
this disk file can be printed using standard LAN print procedures.
C-2
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APPENDIX D
PRESCORE SOFTWARE FILES/DISKETTE
The PREscore and PREprint programs require several files to operate. Check the diskette to ensure that
all required files are present:
PREscore Software Diskette Files
INSTALL.BAT TUTORIAL.HRS
PRESCORE.EXE PREPRINT.EXE
PRESCORE.TCL PREPRINT.CFG
SCRATCH. PAD PREPRINT.TXT
SCRATCH.SIZ PRSCREEN.PAD
HELP.PAD PRSCREEN.SIZ
HELP.SIZ
If the PREscore software has been installed on the hard disk, in a PRESCORE subdirectory, ensure that
the following files are present in that subdirectory:
PRESCORE Subdirectory Files
PRESCORE.EXE TUTORIAL.HRS
PRESCORE.TCL PREPRINT.EXE
SCRATCH.PAD PREPRINT.CFG
SCRATCH.SIZ PREPRINT.TXT
HELP.PAD PRSCREEN.PAD
HELP.SIZ PRSCREEN.SIZ
Q. 1 -U.S. Government Priming Office: 1992 648-003/40702
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