RessqM, Enhanced Version of RESSQ [Javandel et al., 1984]
Contents
1. Stop Program terminated Press any key to continue 3717 Modoc PL Davis CA 95616 WellWar 916 758 0290 Effective Software for Groundwater Professionals Figure 2 Example 1 Data in PRERQM Format Example 1 Capture Zone of a Single Pumping Well 1 0 100 000000 50 000000 000000E 03 500000E 01 225 000000 Well 2500 000000 2500 000000 200 000000 20 000000 3 2 000000 5 000000 10 000000 10 100000 10 000000 000000E 00 5000 000000 0 000000E 00 5000 000000 3717 Modoc PL Davis CA 95616 WellWar 916 758 0290 Effective Software for G roundwater Professionals RessqM Example 1 1 0 3048E 02 Inj Well 3 10101 00001 02 00 p P p P 0000F 2500F 7620EF 2000F 3048F 1524E P II Lr DI Lr Capture 00 00 03 01 01 04 1000 4450 7620 5000 0000 Ej Ed d Dd oce deb Figure 3 Example 1 Data in RessqM Format Single Pumping Well E 03 0000E 00 E 02 1524E 00 1000E 03 0000E 0010 1 E 02 0000E 00 0000E 00 0000E 00 0000E 00 Ed i E 04 3717 Modoc PL Davis CA 95616 WellWar 916 758 0290 Effective Software for Groundwater Professionals Figure 4 Example 1 Streamlines and Extent of Capture CI 20 gpm 500 DOR 3717 Modoc PL Davis CA 95616 WellWar 916 758 0290 Effective Software for Groundwater Pro2. Now you can run RessqM and create graphics to make use of this TOPO GRD file Vv 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for G roundwater Professionals RessqM for Windows User s Manual Running RessqM Double click on the RessqM icon to run RessqM RessqM will execute and ask you to name of a RessqM data file that you created by using PRERQM RessqM then some progress information on the computer screen as shown below while proceeding with the simulation You can terminate the program by pressing Ctrl C or by Exit from the File menu On Line Help is available for the RessqM Windows Select Index from the Help menu for a hypertext list of menu commands and enter the displays selecting interface procedures for which help is available RESSQMV Unit File Edit View State Window Help Ressqh v2 6a for Windous TH WellWare TM Davis California Copyright C 1998 1993 by Gerald T O Neill Please Enter RessqM Data File Name EXAMPLE1 DAT Calculating Streamlines from Injection Well Calculating Position of Front 1 Calculating Position of Front 2 Calculating Position of Front 3 top Program terminated ww 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for Groundwater Professionals RessqM for Windows User s Manual 17 While RessqM is executing Running appears in the Status Bar When RessqM is completed Finished app
3. Note from Figure 6 and Figure 7 that over 5096 of the recharged water flows in the direction of the regional gradient and is not captured by the pumping well This leaves the final concentration at the pumping well below 50 Figure 8 was created using RessqM output from the file RESSQM TXT or EXAMPLE2 TXT and GRAFIT graphing software included with SURFER However any xy plotting software will do ww 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for Groundwater Professionals RessqM for Windows User s Manual 25 Note that you can use the Windows Notepad to copy the time concentration data from RESSQM TXT to a new Notepad file and save it as a txt file Then you can open this file with the graphics software of your choosing and create your own graph Alternatively you can also paste the selected data into the worksheet of your graphics program e g Golden Software s Grapher for Windows and graph it Vv 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for Groundwater Professionals RessqM for Windows User s Manual 26 References Javandel I Doughty C and C F Tsang 1984 Groundwater Transport Handbook of Mathematical Models AGU Water Resources Monograph 10 Washington D C 228 p Javandel I and C F Tsang 1986 Capture Zone Type Curves A Tool for Aquifer Cleanup Ground Water Vol 24 No 5 pp 616 625 O Neill G T 1990 Modeling A
4. 758 0290 Effective Software for Groundwater Professionals RessqM for Windows User s Manual 10 Data Input Data input is accomplished by using PRERQM to create a RessqM data file PRERQM is a preprocessor that uses common English measures and handles necessary units conversions PRERQM defaults for RessqM variables enable the rapid setup of capture zone problems see Defaults and Calculated Variables And PRERQM creates the grid file needed by SURFER to generate a map PRERQM data must be input in the units specified because units are converted in the program A handy program called UNITS is provided compliments of Milovan S Beljin of HydroLink for units conversions Simply double click on the UNITS icon to run UNITS The program is user friendly and self explanatory There are two data file formats that you must be aware of 1 PRERQM and 2 RessqM format These are described below TIP Don t be too concerned with the different file formats for now PRERQM and RessqM will automatically manage the required files in most situations First go through the example problems and refer to this section later as needed PRERQM PRERQM data input is by free formatted data file or interactive screen entry To run PREROM double click on its icon Enter data by typing responses to PRERQM prompts and then by pressing the lt Enter key The following figure shows part of the interactive PREROM screen display with data from EXAMPLEI DAT O
5. T O Neill The software programs on the accompanying disk may not be copied except to install on one computer hard disk and for backup purposes only by the original purchaser 3717 Modoc PL Davis CA 95616 WellWare 916 758 0290 Effective Software for Groundwater Professionals RessqM for Windows User s Manual 2 RessqM Version 2 0 for Windows User s Manual Contents DISCEAIMER 4nd na onec noii er de or eet ec t d tet tete 1 ResSqM Requirement eege ste UTA i de iei I BRAIN Ste 3 Software Installation RE 3 SREL 3 RessQM Installationen t t a e e e e te 4 Disk tte Files ze eoe ete e mp pu petet eeu 5 QUICK tart EE 6 Introduction ia n rnar negem eiae pe iiie ERE OE a iet de deerit 7 RES SQ 555 p eetee 7 Why RessaM RE 7 RessqM Applications eseseseeeeseeeeeeeeeneene trennen eene netne treni treten ennt teene treni trennen 8 DEB M 10 PRERO DM e E 10 Ib scili M O 13 Calculated Variables AA 13 I upnye ER 14 Using Existing RESSQ Data Sets A 14 Data Input Summary E M PO 15 Running RessqM E 16 e RER 18 Oe 18 eut 19 Be De EE 19 VALDE 19 MRGR ER 19 L RRE 20 RRE 20 e ut 21 Example 1 Capture Zone of a Single Pumping Well 21 Example 2 1 Pumping Well and 1 Recharge Well 23 Refere
6. you review this User s Manual and the Example Problems before using RessqM 3717 Modoc PL Davis CA 95616 WellWare 916 758 0290 Effective Software for Groundwater Professionals RessqM for Windows User s Manual 5 Diskette Files The following files are found on the accompanying diskette INSTALL BAT A batch file for installing RessqM on a hard disk GRAPH BAT A batch file for running SURFER to create graphics RESSOM IL RessqM icon library RESSOM GRP RessqM Program Manager group file RESSQM CMD A TOPO command file for creating RessqM Graphics RESSQM PST A TOPO posting file for displaying front positions EXAMPLEZ DAT RessqM example data set EXAMPLEZ TXT Corresponding RessqM output file for Example EX2ZQW DAT RessqM Example 2 data set with ZQWELLs included EX2ZQW TXT RessqM output file corresponding to EX2ZQW DAT RESSOMW EXE RessqM for Windows program PREROMW EXE Data preprocessor for RessqM for Windows ZOWELLW EXE ZOWELL for Windows program ZOWELL DAT Example ZOWELL data set ZOWELL OUT Example ZOWELL output MKGRDW EXE Utility program for creating a TOPO GRD file STRIPW EXE Utility for expressing carriage control formats UNITS EXE Units conversion program by HydroLink v 3717 Modoc PL Davis CA 95616 WellWare H osi ca oser Effective Software for G roundwater Professionals RessqM for Windows User s Manual 6 Quick Start If you do not wish to read the manual at this time and have
7. 0 Effective Software for Groundwater Professionals RessqM for Windows User s Manual 21 Examples Example 1 Capture Zone of a Single Pumping Well In Example 1 RessqM is used to delineate the capture zone of a single pumping well in uniform flow The problem is to determine a plot of the steady state groundwater pathlines and the extent of the capture zone at 2 5 and 10 years of pumping As demonstrated in the following RessqM easily provides the solution The data file EXAMPLE1 DAT was prepared by running PRERQM and by selecting Enter Data From 2 Screen as shown on Figure 1 Figure 2 shows the PRERQM DAT file created by PRERQM This file can be easily edited to change parameters if desired see Table 1 To reuse this data set after making any changes run PRERQM and choose Enter Data From 1 File It is a good idea to rename PRERQM DAT to another name possibly to one that has meaning for you e g ABC DAT remember that PRERQM DAT is overwritten each time PRERQM is run in interactive screen entry mode Figure 3 shows the data set EXAMPLEI DAT in RessqM format By running PRERQM and choosing to enter data from the screen we create a PRERQM format file PRERQM DAT and a data file in RessqM format EXAMPLE1 DAT RessqM is then run using the RessqM format data file EXAMPLEI DAT A listing of the RessqM output file renamed from RESSQM TXT to EXAMPLEI TXT is found in the diskette file EXAMPLE1 TXT After running RessqM
8. RessqM for Windows Version 2 0 User s Manual Capture Zones Well Head Protection Contaminant Transport Capture Zone of 2 well groundwater recovery system after 3 years of pumping 3717 Modoc PL Davis CA 95616 WellWar 916 758 0290 Effective Software for Groundwater Professionals RessqM for Windows User s Manual 1 RessqM Version 2 0 for Windows User s Manual DISCLAIMER WellWare and Gerald T O Neill make no representations or warranties with respect to the contents hereof and specifically disclaim any implied warranties of fitness for any particular purpose WellWare and Gerald T O Neill will not be liable for any damages losses or claims consequent to use of this software or the methods described herein Further WellWare and Gerald T O Neill reserve the right to revise this publication and software and to make changes from time to time in the content hereof without obligation to notify any person of such revisions or changes Models are useful tools and it is the responsibility of the user of a model to correctly apply it in a meaningful way Copyright 1990 1993 by Gerald T O Neill All Rights Reserved No part of this manual may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying scanning and recording for any purpose other than the purchaser s personal use without the written permission of WellWare and Gerald
9. SQ format see Javandel et al 1984 Appendix H Therefore you can use existing RESSQ format data sets see below or create new data sets for RessqM in RESSQ format this requires knowledge of FORTRAN input and format descriptors metric units and some experience with text editors PRERQM provides a conversion between a file in PREROM free format see Table 1 to RessqM format and creates a file called TOPO GRD which contains the base map data required by TOPO SURFER to display RessqM graphics If you create a PRERQM data file using a text editor you must run PREROM to 1 convert the file to RessqM format and 2 create the TOPO GRD file needed by RessqM Using Existing RESSQ Data Sets If you already have data files in RESSQ format you can use these with RessqM without modification However you will need to create a file called TOPO GRD RessqM provides a convenient method for doing this double click on the MKGRD icon you will be prompted to enter the name of the data file in RESSQ format from which a TOPO GRD file will then be created for you by the utility program MKGRD This procedure will be demonstrated in Example Problem 2 The following page summarizes the options for PRERQM and RessqM data input ww 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for Groundwater Professionals RessqM for Windows User s Manual 15 Data Input Summary There are essentially 3 ways to prepare a data f
10. Windows User s Manual 9 contaminant front from an injection well at a time f is identical to the capture zone of a pumping well at the same location and with the same flow rate if the direction of regional groundwater flow is reversed add 180 to flow direction So in order to determine the capture zone of a single pumping well using RessqM we must input it as an injection well and add 180 to the flow direction It was decided to keep this convention in RessqM to maintain compatibility with RESSQ s data format This convention applies to problems where we want to know the capture zone of a pumping well see Example 1 In the case of multiple wells to outline the region from which contaminant is produced input all sinks as sources and vice versa add 180 to the flow direction and request that the front location be calculated at time t Javandel et al 1984 The utility program ZQWELL Javandel et al 1984 provided with RessqM is used to show regional groundwater flow streamlines RessqM will calculate one streamline from an injection well if the flow rate is zero ZOWELL determines the number and locations of zero flow rate injection wells needed to delineate the regional flow in the vicinity of the injection and production wells being analyzed in the problem The use of ZOWELL with RessqM will be illustrated in Example 2 2See Note 6 in Javandel et al 1984 pp 177 178 ww 3717 Modoc PL WellWare Davis CA 95616 916
11. aced with a new TOPO GRD file each time PRERQM and MKGRD are run RESSQM TXT SL BLN and FR DAT are overwritten each time RessqM is run and RESSQM PLT is overwritten each time TOPO is used to save graphics to disk Rename RESSQM PLT if you want to save the plot on disk for future reference You can do this in TOPO or by using the Windows File Manager Later you can view the plot on the screen using SURFER s VIEW utility Type VIEW FILENAME where FILENAME has the PLT extension at the DOS prompt Utility Programs Several useful utility programs are provided with RessqM for your benefit These are described below ZQWELL ZQWELL is a program for determining the number and locations of zero flow rate injection wells used by RessqM to display the regional groundwater flow field see Example 2 Double click on the ZQWELL icon to run ZQWELL Note that you must first create a ZQWELL data set for your specific problem before running ZQWELL An example file ZQWELL DAT is provided for your reference and is discussed under Example 2 in this manual Refer to Notes 7 and 8 on pages 178 181 in Javandel et al 1984 for more information on ZQWELL including its data file format MKGRD MKGRD has been described previously under the heading Using Existing RESSQ Data Sets MKGRD reads the limits of the model area XMIN XMAX YMIN YMAX from the RESSQ format data file and creates a corresponding TOPO GRD file If a TOPO GRD fil
12. already installed SURFER and RessqM see Software Installation simply start Windows and then double click on the RessqM Program Group Icon in Program Manager to open the RessqM Group Then simply double click on the icon corresponding to the task you wish to perform Description EEE PRERQM RESSQM Z WELL MKGRD 2 amp Graph UNITS Notepad ww 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for Groundwater Professionals RessqM for Windows User s Manual 7 Introduction RessqM Ressq Modified is an enhanced version of the popular RESSQ model Javandel et al 1984 RessqM was developed to facilitate the rapid analysis of capture zone and well head protection problems RessqM makes it easy to determine the extent of capture zones of wells in steady uniform groundwater flows at user specified times A preprocessor PRERQM is provided to help users quickly and easily create RessqM data files and custom graphics with Golden Software s SURFER In addition SURFER graphics files are provided that automatically plot streamline patterns and front positions determined by RessqM RessqM is a significant improvement over RESSQ in terms of ease of use speed in setting up and solving problems and plotting graphics RESSQ RESSQ is a computer program for two dimensional contaminant transport by advection and adsorption in a homogeneous isotropic confined aquifer of uniform thickness wh
13. apture zone problems See pp 175 176 in Javandel et al 1984 for a description of these variables You can modify theses default values by editing the RESSQ format data file created by PRERQM see Appendix H in Javandel et al 1984 for a description of RESSQ format Table 2 PRERQM Default Variables c wewus ae ESCHER RE EE RE DIN RE Seene NN ring qe e neenr p C ae Leen Calculated Variables Two variables needed for RessqM are calculated by PRERQM These are VO the pore water velocity of uniform regional groundwater flow and NSL the number of streamlines calculated for each injection well VO is calculated from user specified hydraulic conductivity K gradient of regional flow i and porosity n as follows VO2Ki n and is converted from PREROM English units of ft day to units of m yr required by RessqM NSL is calculated by PRERQM to yield streamlines with equal magnitude of discharge between adjacent lines This is the quantitative approach see Note 8 on page 178 in Javandel et al 1984 Vv 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for G roundwater Professionals RessqM for Windows User s Manual 14 The number of streamlines calculated and ultimately plotted for each injection well depends on the flow rate QW at that well and the contour interval CI according to the following equation NSL QW CI RessqM RessqM format is equivalent to RES
14. atively small contour interval This can be accomplished by editing the PRERQM data set variable CI see Table 1 running PRERQM again to create a new RessqM data file and then running RessqM again Thus PRERQM DAT was edited to change CI from 20 gpm to 5 gpm PRERQM was then run to created a new RessqM data file and RessqM was run again with the new file The results of this second Example 1 run are shown on Figure 5 The streamlines are now plotted in 5 gpm intervals it is easier to depict the capture zones now that more streamlines and more front positions are plotted than in the 20 gpm graph Note the positions of approximate velocity stagnation conditions at various times downstream of the well At steady state the velocity stagnation point is located at the intersection of the dividing streamline which outlines the capture zone and a line in the direction of flow at a distance from the well given by spe 2zbq where q Ki is the specific discharge A quick hand calculation yields Xs 610 ft approximately The scale on Figure 5 is 1 inch 1000 ft and the distance from the well to the stagnation point is measured to be about 610 ft The width of the steady state capture zone at the well measured along a line perpendicular to the gradient vector is about 1925 ft It can be calculated by W Q 2Ti Far upstream from the well the capture zone will be about 3850 ft wide Javandel and Tsang 1986 present some simple solutions for di
15. charge and pumping well The handbook by Javandel et al 1984 additionally describes the use of RESSQ for analysis of a variety of problems it is highly recommended that users become familiar with this book and its example problems RESSQ draws the flow pattern by tracing streamlines from injection wells Javandel et al 1984 Since streamlines define groundwater pathlines in steady state flows see the Appendix RESSQ shows the paths that groundwater follows as it leaves an injection well in uniform flow RESSQ also determines contaminant front positions along streamlines at user specified times In addition RESSQ calculates the time of arrival of a streamline leaving an injection well and arriving at a production well and the evolution of concentration at a production well All these RESSQ features are available in RessqM and are demonstrated with the two example problems presented in this manual Because RESSQ calculates streamlines only from injection wells we must make use of symmetry to apply RessqM to pumping wells For a given problem the outline of a ISURFER supports a wide variety of graphics cards monitors printers including PostScript and plotters and graphics formats including AutoCAD DXF and HPGL Used in conjunction with SURFER RessqM is a powerful analytical and presentation tool ww 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for Groundwater Professionals RessqM for
16. dwater flow in degrees 90 measured counterclockwise from the positive X axis being 0 1 A 00 degrees to a vector in the direction of groundwater flow e 18 O 360 If ALPHA is negative PRERQM will add 360 to the number Therefore to specify flow in a clockwise direction from 0 degrees as shown above a negative number may be used e g 20 340 270 Enter NAMEW XW YW QW delimited by a space comma or tab on the same line List all injection wells first including ZQWELLs followed by the pumping wells LINE 9 means LINE 9 through the total number of wells NWI NWP One line is required for each well The contour interval is used to determine the number of streamlines for each injection well such that the magnitude of flow between adjacent streamlines is constant and equals the contour interval 7Up to 7 values of time may be input on LINE 12 and subsequent lines the number of which is determined by the value of NFRNTS 8If DL is input as a number less than or equal to zero DL is forced to be equal to XMAX XMIN 200 Enter the limits of the model calculation area delimited by a space comma or tab on the same line v 3717 Modoc PL Davis CA 95616 WellWare H osi ca oser Effective Software for G roundwater Professionals RessqM for Windows User s Manual 13 Defaults PREROM assigns defaults to some RESSQ parameters as shown in Table 2 This is done to facilitate the rapid analysis of well c
17. e already exists it will be overwritten by the new file TOPO GRD contains the base map information required by TOPO to display graphic results at a user specified scale Version 1 0 of MKGRD works only with RESSQ format data files UNITS ww 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for G roundwater Professionals RessqM for Windows User s Manual 20 UNITS is a handy units conversion program provided with RessqM compliments of HydroLink Use UNITS to determine values of any RessqM and PRERQM parameters in their respective units if you know the values of these parameters in other units The program interface is user friendly and self explanatory Double click on the UNITS icon to run UNITS STRIP STRIP is provided to remove or express the FORTRAN carriage controls in RessqM s output file RESSQM TXT Most dot matrix and laser printers will not execute the FORTRAN carriage controls e g l new page O0 double space so the ASCII form feed and line feed must be explicitly inserted if they are to be executed To run STRIP double click on its icon STRIP will ask you if the carriage controls in RESSQM TXT are to be executed or stripped off If they are to be stripped a new page command is replaced with a line feed command STRIP was written by David Andrews at the International Ground Water Modeling Center in December 1984 Vv 3717 Modoc PL WellWare Davis CA 95616 916 758 029
18. e injection wells including ZQWELLs must come first in order before any pumping wells using RESSQ convention The results are found in the file EX2ZQW DAT Third run RessqM using EX2ZQW DAT as the input file Model results are saved in the file EX2ZQW TXT renamed from RESSQM TXT Fourth SURFER is used to graph the results Figure 7 shows the resulting streamline pattern including regional flow see also Figure 20 in Javandel et al 1984 3 Draw the positions of the water coincident contaminant front in the aquifer after 0 5 2 and 4 years The front positions are shown on Figures 6 and 7 Note that for the water coincident fronts ADSORB 0 in the RessqM data sets see Table 2 in this manual and Appendix H in Javandel et al 1984 4 Determine how long it will take for a water coincident particle to reach well B the production well Table 12 in Javandel et al 1984 p 54 see also EXAMPLE2 TXT shows the range in arrival times of water moving along the streamlines from the recharge well to the pumping well to be from about 5 to 22 years The arrival time of the first streamline is about 4 6 years Note from Figure 6 that some streamlines will never intersect the pumping well 5 Present the time variation of contaminant concentration at the production well Figure 8 shows a plot of the variation in concentration of recharged water versus time at the production well see also Figure 21 in Javandel et al 1984
19. ears in the Status Bar Upon normal termination of RessqM the following message box appears RESSQMW Program Terminated with exit code 0 Exit Window Choose Yes to return to the Program Manager Choose No to return to RessqM if you wish to browse the RessqM window display and or select and copy output to a word processing program Note that RessqM output is automatically saved to a file named RESSQM TXT each time RessqM is run You can open and print this file from most any text or word processor including the Windows Notepad v 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for Groundwater Professionals RessqM for Windows User s Manual 18 RessqM Output RessqM automatically creates an output file of model results and also generates two data files to be used with SURFER s TOPO program They are described here RESSQM TXT The RessqM output file It contains a listing of the input data and model results including a table of streamline information SL BLN This file contains the coordinates of points that define streamlines as calculated by RessqM TOPO uses information in RESSQM CMD to draw lines through each set of points defining a streamline in SL BLN FR DAT This file contains the coordinates of points along streamlines that define the front locations or extent of capture zones at times specified by the user TOPO uses information in RESSQM CMD and RESSOM PST to plot symbol
20. ell Number of Injection Wells Number of Pumping Wells Aquifer Thickness in ft Hydraulic Conductivity in ft day Hydraulic Gradient of Regional Flow Porosity Direction of Groundwater Flow in degrees tal Number of Well ter Injection Well Data 1 ter NAMEW single quotes XW ft YW ft QW gpm Well 2500 2500 200 ntour Interval for Drawing Streamlines gpm Number of Contaminant Fronts maximum 7 Front Time in years at which to Calculate Front Front Time in years at which to Calculate Front Front 3717 Modoc PL Davis CA 95616 WellWar 916 758 0290 Effective Software for Groundwater Professionals Figure 1 Using PRERQM to Create EXAMPLE1 DAT Time in years at which to Calculate Front Maximum Time of the Simulation in years Step Length for Tracing Streamlines in Minim X Coordina of Model Area Maxim X Coordinat f Model Area Minim Y Coordi f Model Area Maxim Y Coordina f Model Area i f 5000 RessqM Example 1 Capture Zone of a Single Pumping Well Parameter Value m NWI NWP 00 ft 00 ft yr DSORB NFRNTS DATES in years 2 00 5 00 10 00 TMAX 10 10 years DL 3 05 m XMIN 00 XMAX 1524 00 YMIN 00 YMAX 1524 00 Press Enter to continue Well Data NAMEW XW YW OW BETA NSL ITR Inj Well 7620E 03 7620E 03 45431 E 00 1000E 03 0000E 0010 1
21. ere regional flow sources and sinks create a steady state flow field RESSQ is a semianalytical model employing both analytic and numerical solution schemes The complex velocity potential of the system is determined analytically and numerical particle tracking is used to trace streamlines and determine contaminant front positions of injection wells or equivalently capture zones of pumping wells at user specified times in uniform steady state flows RESSQ is described in detail in the handbook by Javandel et al 1984 it is assumed that users have access to this book and are familiar with RESSQ Therefore details of the RESSQ program will not be reiterated here Ordering information for the handbook is provided under Acknowledgments The purpose of this manual is to document RessqM and its use of Golden Software s SURFER to create graphics Example problems are presented in some detail including problems described in Javandel et al 1984 Why RessqM RESSQ has long been described as being user hostile RESSQ had minimal graphics support and was not practically useful These limitations have been addressed by RessqM In addition RessqM generates SURFER files that allow for custom graphics drawn to scale Automatic compatibility with numerous graphics output devices is Vv 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for G roundwater Professionals RessqM for Windows User s Manual 8 supp
22. fessionals Figure 5 Example 1 Streamlines and Extent of Capture CI 5 gpm r RO ES Xe 1es lt e 20 00 2000 20 3000 oO 20 19000 J2 46500 4002 KEEN ao JA DOK ER 0 ZG BAS ER 0 180 BAS Ae oo lt e e 500 1000 1500 2000 2500 3000 3500 4000 4500 5009 x 3 3717 Modoc PL Davis CA 95616 WellWar 916 758 0290 Effective Software for Groundwater Professionals Figure 6 Example 2 Pattern of Streamlines From Injection Well 3717 Modoc PL Davis CA 95616 WellWar 916 758 0290 Effective Software for Groundwater Professionals Figure 7 Example 2 Pattern of Streamlines Including Regional Groundwater Flow Kh 49 3 AD 249 SEI 7 WER d J ra A A P A fr a PA er a z yt P Lei P d Fa S E 49 P P J 3 7 zt d P E P d e Ee d d F P PA A5 Z AC ALLE XA Z L E S 7 Z A Ca p He y Z E e ii 3717 Modoc PL Davis CA 95616 WellWar 916 758 0290 Effective Software for Groundwater Professionals Figure 8 Example 2 Dimensionless Concentration vs Time at Pumping Well 3717 Modoc PL Davis CA 95616 WellWar 916 758 0290 Effective Software for Groundwater Professionals
23. g commands PLOT i lt Enter This command will configure SURFER for use with your output device printer plotter graphics file format VIEW i lt Enter This command will configure SURFER for use with your video display hardware ww 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for G roundwater Professionals RessqM for Windows User s Manual 4 RessqM Installation 1 Start Microsoft Windows 2 Insert the RessqM diskette into the appropriate drive A or B 3 Select Run from the Program Manager File menu and type A INSTALL or B INSTALL and then press Enter or choose the OK button 4 INSTALL will copy RessqM files to your C drive into a directory named C RESSQMW 5 a Create a new group for RessqM in Program Manager From the File menu choose New The New Program Object dialog box appears New Program Object b Select the Program Group option and then choose the OK button The Program Group Properties dialog box appears Program Group Properties Group File C RESSQMW RESSQM GRP c In the Description box type RessqM In the Group File box type C VRESSQMW RESSQM and then choose the OK button The RessqM Group appears the following view is maximized E Program Manager Ressa SEG fie Options Window Help 3 E e B8 E PRERGM RESSQM ZQWELL MKGRD 2 amp amp a Graph UNITS Notepad 6 Installation is now complete We suggest that
24. her file name immediately after running PRERQM For example use the Windows File Manager to rename PRERQM DAT to FILENAME DAT Then for subsequent model runs based on the same data set edit FILENAME DAT using the Windows Notepad and run PREROM again this time selecting Enter Data From 1 File see Figure 1 and enter the file name In this way it is easy to create a data file for RessqM by first creating or editing a data set in PRERQM format and then running PREROM to convert the data set to RessqM format Enter Data From 1 File PREROM data file format is listed in Table 1 ww 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for Groundwater Professionals RessqM for Windows User s Manual 12 TABLE 1 PRERQM DATA FORMAT ray TITLE TITLE OF SIMULATION up to 80 characters NWI NUMBER OF INJECTION WELLS NWP NUMBER OF PUMPING WELLS HEIGHT THICKNESS OF THE AQUIFER ft K HYDRAULIC CONDUCTIVITY ft day HYDRAULIC GRADIENT OF REGIONAL FLOW POROSITY FLOW DIRECTION in degrees VD 0 1 HD Oo FF UU N WELL IDENTIFIER in single quotes g q XW X COORDINATE OF WELL ft YW Y COORDINATE OF WELL ft QW FLOW RATE AT WELL gpm CI STREAMLINE CONTOUR INTERVAL gpm NFRNTS NO OF FRONTS maximum 7 DATE S TIMES TO CALCULATE FRONTS years TMAX MAXIMUM TIME OF SIMULATION years DL STEP LENGTH ft LIMITS XMIN XMAX YMIN YMAX ft 4Direction of uniform regional groun
25. ile for RessqM Two involve using PRERQM the third makes use of an existing RESSQ data set These are described in the following 1 Use PRERQM to create a data file for RessqM by interactive screen data entry a Double click on the PRERQM icon to run PRERQM b Enter the name of the RessqM file you wish to create see Figure 1 c Select Enter Data From 2 Screen in PRERQM PRERQM will then prompt you to enter the necessary data and will create a RessqM data file and TOPO GRD 2 Use a text editor to create a PRERQM format data file and then use PRERQM to convert this file into RessqM format It is easy to create and edit a PREROM free formatted data file see Table 1 using the Windows Notepad or another editor of your choice Once this is accomplished PRERQM must be run to convert this file into RessqM format and create TOPO GRD Run PRERQM and select Enter Data From I File Enter the name of the PREROM file you have created and press Enter 3 Use an existing RESSQ data file There is no need to change any RESSQ data files you may already have to use with RessqM The only thing that must be done is to create a TOPO GRD file that defines the model limits and base map in SURFER The utility program MKGRD is provided for this purpose Run MKGRD by double clicking on its icon Enter the name of the RESSQ data file and press lt Enter gt MKGRD will create a new TOPO GRD file and overwrite the existing TOPO GRD file
26. n Line Help is available for the PRERQM Windows interface Select Index from the Help menu for a hypertext list of menu commands and procedures for which help is available 3See Table 1 for a description of PRERQM data file format ww 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for G roundwater Professionals RessqM for Windows User s Manual 11 PRERQMW Unit File Edit View State Window Help PRERQH v2 1a for Windows THM WellWare TH Davis California Copyright C 1998 1993 by Gerald T O Neill Please Enter RessqH Data File Name EXAMPLE DAT ile creen Enter Data From 1 F 2 zs S 2 Model Data Enter a Title for the Model Run in single quotes j RessqM Example 1 Capture Zone of a Single Pumping Number of Injection Wells Number of Pumping Wells Aquifer Thickness in ft Hydraulic Conductivity in ft day If interactive screen data input Enter Data From 2 Screen is then selected see Figure 1 the input data will be saved in the user specified RessqM formatted data file EXAMPLE1 DAT and in a free formatted PRERQM data file called PRERQM DAT see Figure 2 Later if edits are required you will find it is much easier to edit the PRERQM DAT file than the file in RessqM format see Figure 3 In light of this and because PRERQM DAT is overwritten each time Enter Data From 2 Screen is selected you may want to save a copy of or rename PRERQM DAT to anot
27. nces ehe tort RO ER ER ERR TROU SEENEN 26 ee E nhe HERR CR R DER EHE IER EHE UE FERES DRE CIERRE EHE EUER FREE ERR 26 FIGURES APPENDIX Modeling Approaches for Hydraulic Control of Groundwater Contamination 3717 Modoc PL Davis CA 95616 WellWare 916 758 0290 Effective Software for Groundwater Professionals RessqM for Windows User s Manual 3 RessqM Requirements BM PC 386 SX or higher or 100 compatible microcomputer with hard disk drive MS DOS 5 0 or higher and Windows Version 3 1 or higher Windows must be run in 386 Enhanced Mode Golden Software Inc SURFER version 4 or higher and SURFER compatible graphics adapter monitor and printer or plotter A math coprocessor is used if present however it is not required Software Installation SURFER SURFER is required for RessqM graphics on a PC It is not included with RessqM and can be purchased from Golden Software Inc by calling 1 800 333 1021 or 1 303 279 1021 SURFER should be installed before using RessqM and must be available to RessqM through the DOS PATH command The following shows one way of correctly configuring SURFER for use with RessqM Install SURFER in a directory called CASURFER e Add SURFER to the PATH command in the AUTOEXEC BAT file as follows PATH C C DOS C SURFER etc Restart the computer At the DOS prompt configure SURFER for your video hardware and output device by typing the followin
28. ogram diskette Third create a streamline plot using RessqM and SURFER Figure 6 shows the resulting streamline pattern from the injection well The regional flow direction is indicated by the arrow See also Figure 19 in Javandel et al 1984 2 Show the streamline pattern for the whole system First use ZOWELL to determine the number and locations of zero flow rate injection wells from which RessqM will trace streamlines to show the regional groundwater flow We create a data set in ZOWELL format using the input parameters given in Table H1 by Javandel et al 1984 p 180 This data file has been prepared and is found in the diskette file ZOWELL DAT To run ZOWELL double click on its icon and specify the names of the input and output files ZOWELL results are found in the file ZOWELL OUT ww 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for G roundwater Professionals RessqM for Windows User s Manual 24 Second copy the ZQWELL results from ZQWELL OUT into the RessqM data file and add the number of ZQWELLs to parameter NWI This can be done using a text editor This has already been done for you The following information is for your future reference If the editor you are using does not support editing multiple files you can use the DOS copy command to create one file from EXAMPLE2 DAT and ZQWELL OUT eg COPY EXAMPLE2 DAT ZQWELL OUT EX2ZQW DAT then edit this new file Remember that all th
29. orted by SURFER s PLOT routine It is assumed that RessqM users have purchased SURFER from Golden Software Inc and are familiar with its use There are other software solutions to the problem of drawing streamlines For steady state uniform groundwater flows AqModel by WellWare O Neill 1992 calculates streamlines as well as drawdown and equipotentials However AqModel does not directly facilitate determining the extent of groundwater movement to or from a well at a specified time This is where RessqM excels But RessqM does not facilitate plotting of drawdown or equipotentials as AqModel does therefore it is practical to have models for each type of problem and AqModel and RessqM compliment each other very well Other powerful modeling approaches for more complicated problems include using a numerical flow model e g MODFLOW and a particle tracking code eg PATH3D See O Neill 1990 in the Appendix for more information Together with PREROM RessqM provides easy access to the powerful features of RESSQ And with its automatic interface to SURFER RessqM is a practical problem solving tool RessqM Applications Since RessqM is essentially an enhanced version of RESSQ with powerful graphics support it can be used in exactly the same way as RESSQ RessqM User s Manual gives examples of using RessqM to 1 analyze the capture zone of a single pumping well and 2 determine the flow pattern and contaminant distribution around a re
30. pproaches for Hydraulic Control of Groundwater Contamination Proc Hazardous Materials Control Research Institute s HMC Great Lakes 90 Conference Session on Contaminated Groundwater Control Sept 26 28 1990 Cleveland Ohio pp 112 116 O Neill G T 1992 AqModel User s Manual WellWare Davis CA 95616 Acknowledgments MS DOS is a registered trademark of Microsoft Corporation Windows is a trademark of Microsoft Corporation Postscript is a registered trademark of Adobe Systems Inc SURFER is a registered trademark of Golden Software Inc Golden Colorado UNITS was written and provided by Milovan S Beljin of HydroLink To order the handbook by Javandel et al 1984 Call American Geophysical Union at 800 966 2481 and ask for AGU Water Resources Monograph 10 AGU accepts MasterCard Visa and American Express The estimated cost subject to change is 11 20 for AGU members 16 00 for non members ww 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for G roundwater Professionals Figure 1 Using PRERQM to Create EXAMPLE1 DAT PREROM Version 2 1 PC A Preprocessor for RessqM Copyright C 1990 1992 by Gerald T O Neill WellWare TM 3717 Modoc PL Davis CA 95616 Enter RessqM Data File Name EXAMPL Data From File Screen Model Data Enter a Title for the Model Run in single quotes RessqM Example 1 Capture Zone of a Single Pumping N
31. s along each streamline showing the location of the front or extent of capture at the times specified by variable DATE S Graphics Golden Software s TOPO program is required to realize the benefits of RessqM The TOPO command file RESSOM CMD is provided with RessqM to enable users to quickly and easily generate graphics PRERQM and RessqM create files for use with TOPO These include TOPO GRD SL BLN and FR DAT RESSQM CMD instructs TOPO to use these files and RESSQM PST to display the graphic results of the model runs All this file management is transparently handled by RessqM Double click on the Graph icon to create plots of model results When the TOPO menu appears press the F2 key to view the graph It is assumed that users are familiar with using TOPO to edit display and print graphics RessqM graphics will be demonstrated in the Examples section TIP Using the Windows File Manager copy CENTERED SYM from C SURFER into the directory CARESSQMW and use centered symbols to enhance your plots Be sure to configure SURFER for your hardware and printer or plotter using SURFER s VIEW and PLOT utilities Type VIEW i and PLOT i to install ww 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for G roundwater Professionals RessqM for Windows User s Manual 19 File Notes Please note the following important facts about files managed by RessqM The existing TOPO GRD file is deleted and repl
32. viding streamlines in uniform flows where the wells are aligned perpendicular to the gradient vector ww 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for Groundwater Professionals RessqM for Windows User s Manual 23 Example 2 1 Pumping Well and 1 Recharge Well This is a steady state problem with 1 pumping well and 1 recharge well derived from Example 2 of Javandel et al 1984 p 48 RessqM output is listed in EXAMPLE2 TXT If you are not familiar with RESSQ in general it will be well worth your time to study this problem in detail Following Javandel et al 1984 p 53 we will use RessqM to solve the problem in the order below 1 Show the pattern of streamlines leaving the injection well 2 Show the streamline pattern for the whole system 3 Draw the positions of the water coincident contaminant front in the aquifer after 0 5 2 and 4 years 4 Determine how long it will take for a water coincident particle to reach well B the production well 5 Present the time variation of contaminant concentration at the production well 1 Show the pattern of streamlines leaving the injection well The RessqM data set is given in the file EXAMPLE2 DAT First run MKGRD to create a TOPO GRD file corresponding to EXAMPLE2 DAT Second run RessqM using EXAMPLE2 DAT The model results will be saved in the diskette file RESSQM TXT RESSQM TXT was renamed to EXAMPLE2 TXT and is included on the pr
33. you can view and or print the model results saved in the file RESSQM TXT by using the Windows Notepad To graph the model results double click on the Graph icon and press F2 when the TOPO menu appears Figure 4 shows the resulting streamline pattern and front positions at 2 5 and 10 years of pumping Streamlines represent groundwater pathlines in steady state flows therefore we have a plot of the groundwater pathlines The direction of flow is 45 225 180 as indicated by the arrow see also Figure 1 and RessqM Applications The pumping well discharges at the rate of 200 gpm So if one counts the number of streamlines intersecting the well and multiplies by the contour interval 20 gpm in this case one should get the discharge rate of the well Note that there are in fact 10 streamlines intersecting the well as shown on Figure 4 The capture zone of the single well at 2 5 and 10 years of pumping can be approximately identified on this plot by connecting the symbols on adjacent streamlines for each representative date These symbols are plotted at the distance along a ww 3717 Modoc PL WellWare Davis CA 95616 916 758 0290 Effective Software for G roundwater Professionals RessqM for Windows User s Manual 22 streamline from which water has traveled through the aquifer to the pumping well or from the injection well at a given time It is possible to depict the capture zone more accurately by choosing a rel
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