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3-15 ~- 3.6 STANDARD CONTROL STATEMENTS The Standard Control (see form, Appendix F, pages F-14 and F-15) is used to set forth the sequence in which flood routings through the reaches and structures of a watershed will be performed. The statements on the completed form cause a runoff hydrograph to be developed, to be routed through a structure or routing reach, and to be added to hydro graphs for intervening areas. They may also be used to move a hydrograph to a different location in computer storage, or to divide it into 2 separate hydrographs. .- . . .' -- A "6" must be inserted in column 2, the "Data Code", for all Standard Control statements except ENDATA. The "Operation" (Columns 4 through 11) is described by a code name and a number. The code names are RUNOFF, RESVOR, REACH, ADDHYD, SAVMOV, DIVERT, and ENDATA. These names are for the convenience of the user while the corresponding number in column II identifies to the computer the operation to be performed. Appendices A through E show completed Standard Control instructions for five related sample jobs. For example, in Sample Job Number 1 (Appendix A, page A-5 and repeated below for the readers' convenience) the first statement, RUNOFF 1 causes an inflow hydro graph to be developed for the area above structure 1. The statement, RESVOR 2, causes the inflow hydrograph to be routed through structure 1. The statement, REACH 3, causes the outflow from structure 1 to be routed through the next stream reach (1). The ENDATA card signifies completion of the Standard Control. . In Sample Job number 2 (page B-5), cQntinuing downstream the RUNOFF 1 statement for cross section 1 causes a hydrograph to be developed for the local inflow to the reach previously routed. The ADDHYD 4 statement causes the reach routed hydrograph to be combined with the local inflow hydrograph. The REACH 3 operation instructs the computer to do the