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5. Annual and monthly statistics were calculated for Phase IIIa and Subtask 11.7 baseflows <br />at key stream gages. <br />6. The occurrence and magnitude of negative baseflows were compared to Phase IIIa <br />baseflows throughout the model. <br />7. Baseflows were compared to USBR natural flows at key stream gages where USBR data <br />was available. <br />The first three steps are described in more detail below. The last four steps are described in the <br />section "Results". <br />Assign Indicator Gages <br />The San Juan model covers all of Division 7 and the Dolores River basin within Division 4. <br />Hydrologic characterizations were developed in Subtask 11.5 for six indicator gages in these <br />two basins. The characterizations were compared to see how different they are for the different <br />gages. Table 1 shows the number of months (out of a possible 1,056 months from 1909-1996} in <br />which hydrologic condition differed for each pairing of gages. The conclusion drawn was that <br />indicator gages for streamflow characterization are significantly different, and accuracy maybe <br />gained by assigning different subbasins to different indicator gages. This conclusion supports <br />using several indicator gages in this basin, as was scoped for Task 11.7. <br />Appendix E E-79 <br />