United States       Office of Air Quality
 Environmental Protection Planning and Standards
 Agency         Research Triangle Park NC 27711
 —
                  EPA-450/4-90-0193
                  September 1990
Surface Impoundment
Modeling System (SIMS)
Version 2.0 User's Manual
 control
technology center

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                                 EPA-450/4-90-019a
                                   September 1990
 SURFACE IMPOUNDMENT
MODELING SYSTEM (SIMS)
           VERSION 2.0
       USER'S  MANUAL
                  Bv
             Sheryl L. Watkins
             Radian Corporation
            3200 Progress Center
        Research Triangle Park, NC 27709

          EPA Contract No. 68-02-4378

                              J:S. Environmental C
                                               *****

              Project Officer      Chicago, IL 6060435901 ^ F/OW
            David C. Misenheimer
           Technical Support Division
     Office of Air Quality Planning and Standards
       U. S. Environmental Protection Agency
        Research Triangle Park, NC 27711

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                                          NOTICE

        This report was prepared by Radian Corporation, Research Triangle Park, NC.  It has been
reviewed for technical accuracy by the Emission Standards Division and the Technical Support Division of
the Office Of Air Quality Planning And Standards, and the Air And Energy Engineering Research
Laboratory of the Office Of Researcn And Development, U. S. Environmental Protection Agency, and
approved for publication.  Mention of trade names or commercial products is not intended to constitute
endorsement or recommendation for use.
                                   ACKNOWLEDGEMENT


        This report was prepared for the Control Technology Center by Sheryl L. Watltins of Radian
Corporation. The EPA project officer was David C. Misenheimer of the Office Of Air Quality Planning
And Standards.  Also serving on the EPA project team were Penny E. Lassiter and Anne A. Pope of the
Office Of Air Quality Planning And Standards and James B. White of the Office Of Research And
Development

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                                  CONTENTS

Section                                                                     Page
1    INTRODUCTION
2    INSTALLATION                                                        2-1
     Floppy Drive Installation                                                  2-1
     Hark Disk Installation                                                    2-2
3    OPERATION                                                           3- L
     Starting SIMS                                                            3- L
     Main Menu                                                              3-3
     File
     File/Retrieve
     File/Save
     File/New
     Input
     Input/Study
     Input/Devices
     Input/Devices/ Add
     Input/Devices / Edit                                                     3-13
     Input/Devices/ Delete                                                   3-13
     Input/Pollutants                                                        3-14
     Input/Pollutant/ Industries                                               3-16
     Input/Pollutant/Edit                                                    3-17
     Input/Pollutant/Add                                                    3-18
     Input/Pollutant/Deiete                                                  3-18
     Input/View                                                            3-19
     Calculate                                                              3-20
     Print                               .                                   3-20

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                               CONTENTS

Section                                                               Page
     Setup                                                            3-20
     Quit                                                             5-23

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                                  TABLES
Table                                                                   Page
3-1   Description of Report Units of Measure Abbreviations                      3-21

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                                    FIGURES
Figure                                                                      Page

3-1  SIMS Introductory Screen                                                 3-2
3-2  SIMS Main Menu                                                         J-2
3-3  Retrieving a Study File                                                    5—
3-4  Saving a Study File                                                       3-6
3-5  Study Description Form                                                   3-7
3-6  System Configuration Form                                               3-10
3-7  Device Description Form                                                 3-li
3-8  Device Parameters Form                                                 3-L2
3-9  Industries Form                                                          3-17
3-10 Pollutant Edit Form                                                      3-18
3-11 Viewing me Current Input Parameter Values                               3-19
3-12 Setting the SIMS Setup Parameters                                        3-22

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                                   SECTION 1
                                INTRODUCTION
      Surface impoundments (SI) are used to treat, store, and dispose of wastewater
generated by facilities in many different industries. These wastewater streams may
contain a variety of volatile organic compounds fVOC's) and toxic air pollutants.
Because surface impoundments are normally open to the atmosphere, the potential for
air emissions exists. .As such. State and  local  air pollution control agencies  need a
methodology to estimate the air emissions from surface impoundments and wastewater
collection systems.

      The Surface Impoundment Modeling System (SIMS) is a personal computer based
program designed to estimate the air emissions from surface impoundments and
wastewater collection devices. The emission estimates are based on mass transfer
models developed by the Emissions Standards Division (ESD) of the Environmental
Protection Agency  .;E?A/ auring the evaluation of hazardous waste treatment, storage,
and disposal facilities sTSDF's) and during the evaluation of VOC emissions from
industrial wastewater ;'IWW). SIMS allows the user to specify ail the required inputs to
the ESD  emission models when this information is available. Moreover, when only
limited information is available, SIMS provides default values for  most of the model
inputs.

      The EPA is  continually revising and extending the capabilities of SIMS.  This
manual accompanies version 2 of the SIMS software that includes the following new
features:

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            Addition-of emission models for diffused air and oil film impoundments;

            Addition of emission models for wastewater collection devices (junction
            boxes, lift stations, sumps, and weirs);

            Capability to model emissions from combinations of impoundments and
            collection devices in series;

            Expanded chemical database that includes 147 compounds; and

            Expanded estimated emissions report.

      This manual presents a complete reference for all of the features and commands
in SIMS. Section 2 explains how to install SIMS on your personal computer. Section 3
discusses the commands you need to use in the program. This manual should be studieu
thoroughly before using SIMS.

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                                  SECTION 2
                                INSTALLATION
      This section teils you how to install SIMS on your personal computer. SIMS
requires DOS version 2.0 or higher, one floppy disk drive, 512 kilobytes of main memory
(RAM) with 400 kilobytes free, and an IBM® personal computer or otner fully  IBM
compatible model of personal computer.

      Before installing or using SIMS, make a backup copy of the program and ;ts
database files (SI_CHEM2.DBF, SI_COMP.DBF, and SI_!ND.DBF).  Store :his bacjcap
copy in a safe place for use only if sometning were to happen  to your working cooy of
the program.

      SIMS may be run either  from a floppy disk or  from a tiara aisK. However, ,-jince
tne computer can -read information from a hard disk more quickly than from a  floppy
disk, it is recommended that the hard disk installation oe used whenever possible.

FLOPPY DRIVE INSTALLATION

      For floppy drive use, no special installation steps are required.  Simpiy insert a
working  copy of the SIMS diskette in tne default drive whenever you want to run the
program.
                                      9-1

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HARD DISK INSTALLATION

      To install SIMS on a hard disk, first create a directory for SIMS using the
following command:

      MD \SIMS

Then, copy ail of :he files from the SIMS diskette to the new directory by typing:

      COPY A:*.1  \SIMS

Finally before trying to ~un the program, change :o cne SIMS directory by typing:

      CD '-SIMS

      Included on the SIMS diskette is a oaten file uamea RUNSIMS.3AT. Tnis file
may be copied to your root directory (C:\) and  used to ran SIMS from any director/ on
your hard disk. To start  SIMS using this batch  file, type:

      RUNSIMS

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                                  SECTION 3
                                 OPERATION
     Tnis section describes ail of the features and commands in the Surface
Impoundment Modeling System (SIMS).  Hints and suggestions intended to help you
take full advantage of the program are also included.

STARTING SIMS

     To start SIMS from DOS. tvoe:
     SIMS
The introductory screen presented in Figure 3-1 should appear on the computer display.
Press any key to begin loading :ne pollutant database file. After the file has been
loaded, the SIMS Main  Menu should appear as shown in Figure 3-2.

     Some personal computers attempt :o simulate color on monochrome displays by
substituting various shades of gray for the colors. This simulation can cause the SIMS
display to look faded or the cursor to disappear.  If you experience either of these
problems, or if the display looks unusual, try running SIMS in the monochrome mode.
To start SIMS in the monochrome mode from  DOS, type:

     SIMS -M

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                                            s
                     Surface  Iinpoundnent Hodeling Systen
                                (Version Z)

                               Sponsored by:

                          Control "ectinoicMfy Center
                     U.  S. Enuironaerrtal Protection rtgeiwy
                       Hesearch Triangle Park, MC  27711

                Project  Qfricer:  Dauid G. flisenheiner,  USEPft
                        Developed by Radian  Corporation
                Press any  Key to acqin...
                Figure 3-1.  SIMS Introductory Screen.
                     Surface Inpaundncnts ftadelimc Sustor
        Input   'Jatculdte   Print   Setup   Quit
Retrieue  or save a study.
                     Figure 3-2.  SIMS Main Menu.
                                     3-2

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MAIN MENU

     SIMS uses bar menus, which appear at the top of the computer display, to control
the actions of the program.  You may select an entry from  the menu
eiifier oy typing  the first letter of the entry or oy using the cursor motion keys <[<-; ana
[-»]) to highlight  the desired entry and pressing [Enter].  .After a menu entry is selected,
SIMS will either perform some action or present another menu of options (a sub-menu).
To exit a sub-menu and return to the  parent menu, press [Esq.

     The commands avaiiaoie  in the SIMS Main Menu are:

     File            Retrieves or saves study definition files.
     Input           Specifies the input data for the calculations.
     Calculate       Calculates the air emission estimates.
     Print           Prints the report of the emission estimates.
     Setup           Updates the setup parameters for SIMS.
     Quit            Quits SIMS and returns to DCS.
 
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FILE/RETRIEVE

     File/Retrieve sets ail of the calculation input parameters to the values saved in an
existing study definition file.  Study definition files are created wim the SIMS File,-Save
command and have the filename extension of SDF.

     When File/Retrieve is selected, a pop-up menu containing the  study definition files
located in the SIMS default directory is presented (Figure 3-3).   SIMS uses pop-up
menus to help you select items from a list of entries. Use [T] and [i] to highlight the
entry you wish to select.  Press [Enter! to seieci the  item or press [Esc] :o abort the
menu without making a selection.
                            Surface tapotuubtents Hadel iiur; Susten
           Retrieue*
                    3aue  .ley
          Betricue an existing jtudy.
                    ftMPLE.oDF  -)8ya6x-38 SJflS ixinnle Case
                          Figure 3-3.  Retrieving a Study File.
      You mav select an existing studv file from mis menu or vou mav abort the menu bv
             ..                 j    >                       -       j
pressing [Esc].  If you abort the menu, you will be prompted for a study file name.
Continuing to press [Esc] will return you to the File sub-menu.

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     After you specify a study file to be retrieved, SIMS performs two quick checks as it
reads the file. First, it verifies that the industry database files have been loaded and
loads the files if necessary. Second, if the study file was created by an earlier version of
SIMS, the contents  are updated to the current format.  After the file has been retrieved,
you are returned to the SIMS Main Menu.

     An example study definition file has been included on the SIMS diskette. The
name of the file is EXAMPLE.SDF. If you want your computer to duplicate  the
example figures  in the remainder of this manual, you must retrieve the EXAMPLE study
file.

FILE/SAVE

     File/Save copies all of the current Input values to  a specified study definition file.
If the specified file  already exists, SIMS will ask if you want to overwrite the existing file.
Overwriting a file destroys the existing contents of the file.

     Figure 3-4 shows the initial SIMS prompt containing the currently  defined study file
name.  If no file name is currently defined -or if you abort  the current name by pressing
[Escj), a pop-up menu of the existing study definition files is presented.  As with
File/Retrieve, you may select an  existing file or press [Esc] to enter a new file name.

FILE/NEW

     The File/New option provides you with a way to clear all  of the SIMS input
parameter values without resorting to quitting and restarting the program.  After the
option is selected. SIMS  asks if you really want to clear  the existing study.  This option
deletes  the current  inout parameter values and resets the values to zero.
                                         3-5

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                           Surface Inpoundnents rtodelimr Susten
          Retrieue  *rtUf'.J  Meu
          Javc the current study to disk.
                   Enter the nanc of the Jtudy file;
                      (WWLE.SDF <
                           Figure 3-4.  Saving a Study File.
INPUT
     This Main Menu entry starts a sub-menu that controls the specification of the input
data for the model calculations. The commands available in this sub-menu are:
     Studv
Sets the stuciv aescnotion and iniet flow rate to the svstem.
      Devices
Defines each of the devices (surface impoundments and/or
collection devices in the system.
      Pollutants       Specifies the list of influent pollutants and their concentrations.
      View
Displays the current study input parameter values.
In general, when you are providing the input data for a particular wastewater treatment
system, you should start with the Study command and work left-to-right through all of
the commands in the Input sub-menu.
                                         3-6

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INPUT/STUDY

      The Input/Study option starts the Study Description data entry form as shown in
Figure 3-5.  SIMS uses data entry forms 
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     The second type of field is a select field. For this type of field, you can display a
list of possible entries by pressing the space bar.  Use the cursor motion keys to highlight
the desired entry and press [Enter] to select the entry.

     You may move between the data entry fields oy pressing [t ], [il, or [Enter!.  Once
ail of the fields in the form have been completed, you may save the changes and exit me
form by pressing [F10]  or, if the cursor is on the  last  field, by pressing [Enter].
Alternatively, you may  exit me  form without saving :he changes by pressing [Esc:.

     The Study  Description data entry f'orm is used to provide  a title tor the study and
10 supply the inlet flow rate entering the wastewater treatment system. The inlet flow
rate may be input either  as cubic meters/second  (mj/s) or million gallons/day (MGD).

     From the inlet flow rate,  default values  can be  calculated  for many of the emission
model input parameters.  You can adjust :hese default values to match your particular
system using the Input/Devices command.  .As such, if you change  the value you supplied
for the inlet flow rate and have adjusted any of the default values.  SIMS svill ask you to
verify that you wish to  reset the parameters to calculated default values.

     Since disposal impoundments are often  operated in "batch" mode where the
impoundment is filled in  a relatively  short period of time, followed by an extended
period with no inlet flow, a value for the iruet flow rate is not intuative. To use SIMS to
model  a disposal impoundment, the following two adjustments should be used:

     (1)   Calculate an  average inlet flow rate by  dividing me final impoundment
           volume by the total retention time, use this calculated value as the inlet
           flow  rate for  SIMS.  For example, if a disposal impoundment has a capacity
           of 1,000,000 gallons and a fill-drain cycie  of 6 months (180 days), then the
           average inlet  flow rate is  0.0056 MGD  (1/180 million gallons per day).

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     (2)   Replace the. default values calculated by SIMS for the impoundment depth
           and retention time with the actual values for the disposal impoundment.

INPUT/DEVICES

     The Input/Devices option starts the Devices sub-menu. Using the commands Ji
this sub-menu, you can configure a series of devices to match the devices in your system.
A device can be either a surface impoundment or  a wastewater collection device.  You
will be asked to supply data on various characteristics for each device.  SIMS will use
this data to estimate the air emissions from each device and to calculate the pollutant
concentration profile discharged from one device to the next in the  system.

     The commands available in this sub-menu are:

     Add       Add  a device to the svstem  and define its characteristics.
     Edit       Review and modify the characteristics of the devices defined for the
                svstem.
     Delete     Deiete a device from the svstern.

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INPUT/IMPOUNDMENTS/ADD

     This option starts the System Configuration form presented in Figure 3-6 and is
used to add new devices to the svstem.
                            Surface ImxaimdNentsr naaeiiwr Susteur*
                Edit  Delete
          ftdd an deuice to the study.
             ft ncu deuice uLMt be inserted after tlur higMifflitcd crrtrrj, >, *; tf    '.
             Select; the desire* location and: press [Enter!,V?, Fressft lEscf^tw exit-..
                        Figure 3-6. System Configuration Form.
      New devices are inserted after the highiignted entry.  To add a new device, use the
[r] and [i] keys :o position the highlight in the desired location and press the [Enter]
key. To add a new device to the beginning of the series, position the highlight on the
"SYSTEM WASTEWATER FEED" entry and press [Enter].

      After you have selected the position of the new device you will be presented with
two data entry forms. The first form is the Device Description form (Figure  3-7). This
                                         3-10

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                            Surface Impoundments nodeling Susten
                Edit  Delete
          fldd an device to the study.
                jEnter the description for deuice t2
                jPress [F101 to save the data, L£SCJ to ibort.
                                IMS ExaimLer Inrpaundneivfe 2
lane:
~!ou nodei:   Hou-through
Deuice type:  flechanica; ly iterated SI, 'Jith 31odeqradation
Surface Urea: 1765Z.OOGO  nZ
                {Enter the lame of the deuice.
                     Figure 3-7.  Impoundment Description Form.
form is used to supply four required input vaiues -- me device name, its flow model
(flow-through  or disposal), its type, and the device surface area.  (Note:  If the device
type is a weir, a value for the surface area is aot required.)  SIMS can model several
rypes of devices including:
           Mecnanicaily Aerated Surface Impoundment, No Biodegradation;
           Mechanically Aerated Surface Impoundment, Activated Sludge:
           Mechanically Aerated Surface Impoundment, With Siodegradanon;
           Non-aerated Surface Impoundment, No Biodegradation;
           Non-aerated Surface Impoundment, Witn Biodegradation;
           Diffused Air Surface Impoundment, No Biodegradation;
           Diffused Air Surface Impoundment, With Biodegradation;
           Oil Film Surface Impoundment, No Biodegradation;
           Junction Box;

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           Lift Station;
           Sump; and
           Weir.

However,  the device rvpe can omy be set when a new uevtce is added.
     After the Device Description form has been exited, the Device Parameters data
entry form is displayed as shown in Figure 3-8. This data entry form is used to review
and adjust the air emission model input parameters for your particular device.  Default
values for ail of the fields in this form have been calculated from information in :he
Device Description form.
• Surface iMpoundnents H<
ran a Edit Jelexe
(tad an deuica to the study.

jEdit the parameters far 3cui.ce 42
Prsss CF10] to iave the data. tEscJ

^^^^^^••^•iCTT^i^^^^^^^KltKk Exannle. Itmnii
|
i Surface area:
i • j •-
•inia ,ccea:
! 'Jatcr 2epth:
• tetention Tine:

i 3iaMSS Concentration:
i
Total Pnuer to iterators :
Edit the name of the device.
i
ideiimr Susteir' >,-::-,>- .-.".• ,•-.,• <.*•-- -.



*.o abort . ;

1 '"'
1.7652.9008 »2
*.<70000 ass I
'..366327 •
LS4 . 307363 ir
i
ooo . tweooe g^ivs
i!i3.sai735 :jp


                     Figure 3-8.  Impoundment Parameters Form.
     The Device Parameters form contains three fields that are interrelated:  the
surface area field, the water depth field, and the retention time field.  SIMS assumes that
the device surface area is an independent value and calculates several default values
                                       3-12

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based on the device surface area.  As such, if you modify the value for the surface area,
SIMS will ask you if you wish to replace the model input parameters with re-calculated
default values.  SIMS also assumes that the device water depth and the retention time
values are mutually  dependent.  Thus, if you modify one of these two values, SIMS will
offer to  recalculate the other value.  When you exit the Device Parameters form. SIMS
checks to verify that the given values  for the water depth and retention time agree to
within 10% of the calculated values (retention time = surface area •  water depth + inlet
flow rate).

      .After you  exit  the Device Parameters form,  you may continue to add new devices.
To exit the System Configuration form, press [Esc].

INPUT/DEVICES/EDIT

      This option also uses the System Configuration form LO display the currently
defined  series of devices. To  review and modify the air emission model input values for
a particular device, use the [ T ] and [ I ] keys to highlight the device name and press
[Enter]. The Device Parameters data entry form  will be displayed with the values
currently defined for ;he selected device.  Modify  any vames you desire and press fFlO]
to save the changes  and exist the form.  No action will be performed  if you attempt to
select the "SYSTEM WASTEWATER FEED" entry.

      When you have completed your review of the currently defined  devices, press [Esc]
to exit the System Configuration form.

INPUT/DEVICES/DELETE

      This option starts the System Configuration  form to display the currently defined
devices and is used to delete devices from the system. To delete a device, highlight the
device name using the [t] and [i] keys and press  [Enter].  SIMS will ask if you are sure

                                       3-13

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you want to delete the selected device before the deletion process is performed.  Press
[Esc] to exit the Systems Configuration form.

INPUT/POLLUTANTS

     The Input/Pollutants option starts the  Pollutant sub-menu.  From this sub-menu,
you can specify the list of pollutants and associated concentrations entering the
wastewater treatment svstem.  The commands available in this sub-menu are:
     Industries       Calculate default pollutant concentrations based on the industrial
                     sources discharging to the system.
     Edit            Review the current list of influent pollutants and modify their
                     associated concentrations.
     Add            Add a pollutant to the current list of influent pollutants.

     Delete          Delete a pollutant form the list of influent pollutants.

     Tne chemical and physical property data for the pollutants included in SIMS are
contained in the Chemical Property database file i,SI_CHEM2.DBF). This file, like the
other SIMS database files, was prepared in dBase III® file format.  Tne dBase III
compatibility allows you to conveniently maintain the database files and simplifies the
process of making additions  and corrections to the files.  However.  SIMS  does not
require dBase III to operate.

     Occasionally, new pollutants will need to be added to the Chemical  Properties file
(SI_CHEM2.DBF). Tne procedure presented below  can be used to add a. new pollutant
record to the file.  Please consult the dBase III user's manual for more information on
the installation and operation of dBase III.
                                        3-14

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(1)   Start the dBase III software by changing to your dBase III directory and typing:
          DBASE
     Load the Ciemicai Property aataoase die oy cyping :fie following at the dBase
      romt:
          USE SICHEM2
G)   Add new ooilutant records to the die by typing:
          .APPEND
     You will need :he following physical and chemical information 
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     KS             Half Saturation Constant (g/m3)
     KOW           Octanol-Water Partition Coefficient
     NOTE          Source of Data

;4)  . After :he pollutants nave oeen added to cine die, return ;o the dBase prompt :oy
     typing: [Ctrl] ->- [End].

(5)   To save your changes and update SI_CHEM2.DBF, at the dBase prompt type:

          QUIT

INPUT/POLLUTANT/INDUSTRIES

     In some cases. State and iocai regulatory personnel may not have information on
the concentrations of the pollutant  constituents in the feed to the wastewater treatement
system.  For these cases, SIMS can calculate default pollutant concentrations based on
the location and the industrial sources discharging to the system.

     The Input/Poiiutants/1 Industries option, as shewn in Figure 3--?, is used :o specify
the location of the treatment system , POTW or Industrial) and  the industrial sources
discharging ro the system.  The influent industries are marked with a '>'. To mark or
unmark an industry, press the space bar. Once all of the influent industries have been
marked, press [F101 to save the changes and exit the form.

     A default list of influent pollutants and concentrations is prepared by SIMS based
on the specified  industrial sources discharging to the system.  Saving :he information in
the Industries data entry form replaces the current list of influent pollutants and
concentrations with a list of defaults. If the list  contains user supplied values, SIMS will
ask you to verify that the information on the form should be saved.
                                       3-16

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                               Surface Impoundments node 1 uny Systen
            Imtus tries
                       Edit   fldd   Delete
           Specify the industrial categories for the  influent.
                     Press IFIOJ to saue  the data,  tEscl to abort.
                        Facility:
                        fraction  Industrial Influent: 100.000000 x

                        Mark the  influent  industries;
                                       rtHD SDUfUITS
                           Z  BATTEKV HFG
                           3  OWL. OIL, PETBQLEUn PBODS.  4 RETiniHG
                        >  4  DYE FIFG »  FORIUJLflTIQM
                           5  ELECTBICflL A E1ECT30WC CflllPOHEMTS
                           6  ELECIROPLflriHG ft HETAL FIMISHIHG
                           7  EqUIPHEMT  MFG a ASSEMBLE
                           3  EXPLOSIUE3 HFG
                           g  sun a 'JOCD CHEMMLS. 5 HELflTED OILS
                     Select the facility  (press space Sar Tor options).
                                Figure 3-9.  Industries  Form.
INPUT/POLLUTANT/EDIT
      Tnis option starts the data entry form as shown in Figure 3-10.  The current list of

influent pollutants is displayed along with the rotai inlet concentrations.  The values in

the concentration data entry fields may  be modified.  Press [F10]  :o save the changes  and

exit  the form.

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Surface Inpaundnents Rode ling Stjsten
• IMU4JLM Edit • 1 • II t^^i^BBn^B^HMHMHI^HHHHl
Edit th
ie influent pollutant concentrations.
Press trifl] to saue the data, [Esc] to abort.
V

107-i)2-d rtCKOLElN TBTiTig-jni;
71-43-2 3EHZEHE 10.293708
117-31-7 BIS(2-£THVLHEXVL)PHTHflLfirE 7.069752
7<»-a3-3 anonamiTHflriE 3.903736
35-38-7 3UTVL BEHZ?L PHTHALflTE 7.069730
56-23-5 CflRBON TETRflCHLDHIDE 0.941191
108-90-7 CHLOROBEH2ENE 3.000080
67-66-3 CHLOROFORM 7.986239
74-37-3 CHLDROHETHrtME 3.131771
34-74-2 SlBUm?HTHfliflT£ 0.90OOG4 (
35-50-1 DtCHLOROBEMZIMECl^) (-0) 3.765779
106-46-7 DtCHLORaBEfCEnECl.l) (-F) 1.Z94248
197-96-2 DICHLORQETHflt1E(l,2) 9.90001S
120-33-2 DtCHLORQPHEMflL(2.-O 0.328363
34-66-2 DIETHyi PHTHflLflTE 0.000031
Edit the influent pollutant concentrations (in grans/cubic ncter). '

•
1
i
                         Figure 3-10. Pollutant Edit Form
INPUT/POLLUTANT/ADD

     This option starts a pop-up menu that presents the pollutants defined in the SIMS
database that have not been included in the list of influent pollutants. Select the
pollutant you wish to add ;o tne influent stream. .After a pollutant is selected, you will
be asked to enter the influent  concentration for the pollutant.

INPLT/POLLUTANT/DELETE

     This option starts a pop-up menu that summarizes the currently defined influent
pollutant list and is used to delete  pollutants from the  list.  Select the pollutants you wish
to delete. SIMS asks if you are sure you want to remove the pollutant before the
deletion is performed.
                                       3-18

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INPUT/VIEW

     Input/View allows you to review the current values for all of the input parameters.
Tnese values are presented ;n the report format shown In Figure 3-11.  The text of the
report can be scrolled using tne cursor motion Keys.  [Komei moves :o  the beginning of
the text and [End] moves to the end.  [PgUp] and [PgDn] move the text up a page or
down a  page, respectively [*-] and [-*] move the text left and right.  The pointer in the
lower left corner of the display indicates inat more text occurs below and that the
[PgDn] key should be used to view it.  When you  have finished viewing the input value
report, press [Esc] to return to the Input sub-menu.
          3tudy   Devices   fouutants
          lieu the study input  parameters.
                           Surface' Impoundments rroteun
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CALCULATE

     This Main Menu entry calculates the air emission estimates for the defined
wastewater treatment system.  Before the calculation is performed, SIMS checks :hat ail
of the Input values are ion-zero.  If. zero values are found, a warning message is
displayed.  If the input values are acceptable, SIMS asks if you are reaay to calculate the
emission estimates.  After the calculations have been completed, a report of the air
emission estimates is displayed.  Use the cursor motion keys to scroll through the  report
and press [Esc] to exit.  (Note:  Use  the [-*] key to display the Air Emission values.)  The
units of measure (SI or English) for ;he calculated emission rates and concentrations
presented in the report are defined using the  Setup option in the Main Menu.  Table 3-1
presents a description of ail of the units of measure abbreviations used in the report.
PRINT
     Tnis Main Menu option generates a report of :he air emission estimates for the
defined wastewater treatment system. The report can be sent either to the printer or :o
a file.  SIMS uses the parameters defined with the Setup option of tne Main Menu to
format ihe report for 
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TABLE 3-1.  DESCRIPTION OF REPORT UNITS OF MEASURE ABREVIATIONS








                arm                    atmosphere




                cm                     centimeter




                deg C                  degrees Centigrade




                g/m3                   grams per cubic meter




                g/hr                   grams per hour




                hp                     horsepower




                hr                     hour




                Ib 02/hp-hr             pounds of oxygen per horsepower hour




                Ib/ft3                  pounds per cubic root




                ib/hr                   pounds per hour




                Ib/yr                   pounds per year




                m                     meters




                MOD                  million gallons per day




                Mg/yr                  rnegagrams .million grams) per year




                m2                     square meter




                m3/s                   cubic meters per second




                m/s                    meters per second




                rad/s                   radians per second




                %                     percent
                                    3-21

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           File   Input  Calculate  Print
            date the SIMS setup paraneters.
Surface IitpaundMents. n
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QUIT
     The Quit option from the Main Menu exits SIMS and returns to DOS. SIMS will
ask you if you rsaily want to quit and will remind you if you have not saved your input
values.
                                      3-23

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                                   TECHNICAL REPORT DATA
                            (Please read Instructions on the reverse before completing)
1. REPORT NO.
 EPA-450/4-90-Q19a
                              2.
                                                            3. RECIPIENT'S ACCESSION NO.
4. TITLH AND SUBTITLE
 Surface Impoundment Modeling System (SIMS)  Version 2.'0
    User's  Manual
                                                            •5. REPORT DATS
                                                            6. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)

 Sheryl  Watkins
                                                            -a. PERFORMING CRGANIZAT'CN IEPOR r - c
'9. PERFORMING ORGANIZATION NAME .^ND ADDRESS

I Radian Corooraticn
IP  0 3ox 13000
:Research Triangle Pars,  NC   27709
                                                            .0  3ROGHAM Eu^MENT N;.
                                                            11 CONTRACT/GRANT MO-

                                                                53-02-4373
112. SPONSORING AGENCY NAME AND ADDRESS
 U.  S.  Environmental  Protection Agency
 Control  Technology Canter
'Office of Air luaiity Planning and Standards
iResearch "rianaie  -ar:<,  1C  277"!"!
                                                                 c OF REPORT AND PERIOD :OVERED
                                                            14 SPONSORING AGENCY CODE
'15. SUPPLEMENTARY NOTES

I EPA Project Officer:   David C.
                                 Misenne^'mer
                                                                                            )
1 16. ABSTRACT                                                                                  .
]     Surface impoundments  ire used to treat,  store,  ana iisoose of  -vastewater generated  •
jby -acilities -"n many  different 'naustr-'es.   Because surface "mDounaments  are iormai"!y
open co tne atmosonere,  :ne ootential *or  air emissions JT  /olatile  organic compounds
     '                                        As  sucn.  State and "ocai  air  oollution :ontro-l
JC'/OC's)  and toxic nr  ooilutants 2x1 s
• agencies need  i nethodology r,o estimate  :he air  emissions *rom surface  'mooundments .
i     The  Surface Impoundment Modeling System ;SIMS/  is a personal comouter oasaci
j program  designed  io estimate the air emissions from surface impoundments,   "he
^emission estimates are  oased on nass transfer models  ieveiooed Dy  :he  Emissions
^Standards Division ;ESD)  of *,he Environmental D^otect.on Agency  ,'E?A)  lurina the
Devaluation of  nazaraous  waste treatment,  storage,  and jiscosai -"ac-^'ties '.TSDF's/.
jSIMS allows <:ne user  to  soecify all trie  '"eduired  ;nouts to t.iese emission .node'
jthis information  is availaole, ^r -vhen only '
•default  values -"or ,nost  of  the jiodel incuts,
Deference
 Bac:
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 U.S. Environmental Protection Agency
 Region 5, Library (PL-12J)
 77 West Jackson Bpufevard, 12th Floor
Chicago, It  60604-3590

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