The result of your selection will be displayed on all of the screen 

 displays that follow your selection until such time that they are 

 cleared by you, or you return to the Main menu. Your query condition 

 will look like: 



SET FILTER TO 'YELL.' $COUNTY .OR. 'STIL.' $COUNTY 



This query conditions can be interpreted as follows. 



Allow only those records in the data base I previously 

 selected that contain the string 'YELL.' or 'STIl.' in the data 

 field called COUNTY to pass through the filter and be reported. 

 If a data record does not contain either of these counties then 

 do not report them. 



3.2.2.3. Data for specified EPA reaches: -"3" 



You may specify the range of data by EPA (Environmental 

 Protection Agency) reaches by selecting option "3" from the 

 geographical menu. Selection of this option displays the EPA Reach 

 Menu. 



Fig. 3-5: The EPA Reach Menu 



The EPA reach menu will appear in a slightly different manner than 

 is shown when it is first displayed. You will be asked to input the EPA 

 reach code. If, at this point, you decide to abort this query, enter 

 "0" (zero). You will return to the geographical menu. If you enter 

 an EPA reach code (shown as 123 in the figure above), the program will 

 first "look up" from EPA. DBF the DFWP water code corresponding to the EPA 

 code you've entered. It will then set the filter to that DFWP water 

 code. If several DFWP water codes correspond to the EPA code you've 

 entered, only data for the first one encountered will pass through the 

 filter. 



The resulting query condition will be displayed on all future 

 displays until it is canceled in a manner described in the 

 County/Counties discussion. 



3.2.2.4. Data for specified DFHP water codes - "4" 



You may specify the range of data by DFWP (Department of Fish, 



Wildlife and Parks) water codes by selecting option "4" from the 



geographical menu. Selection of this option displays the DFWP Water 

 Code Menu. 



3-5 



