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GRANDE AT SOUTH FORK, CO. Statistical measures of the regression results can be <br />viewed in Table 1 below and the tstool log file (ATTACHMENT 1). The tstool DMI reads <br />the 08218500 historical flows from the 08217500.STM file. Historical flows at USGS gage <br />08219500 are read directly from HydroBase. <br />200921 TM <br />This stream flow location was created in the StateMod network to reflect imported "trans- <br />mountain" water to the South Fork of the Rio Grande River in Water District 20. The <br />stream flows are set to equal the historical diversions of WDID 200921, TREASURE PASS <br />D. They are input to the tstool DMI via the time-series file, 200921TMSTM. <br />08219500 <br />This stream flow location in the StateMod network was created to reflect historical observed <br />stream flows at USGS gage 08219500, SOUTH FORK RIO GRANDE AT SOUTH FORK, <br />CO. The period of record for this gage is 1910-1995. No adjustments or data filling was <br />necessary for this location, therefore, the tstool DMI reads the historical flows for this gage <br />directly from HydroBase. <br />08220000 <br />This stream flow location in the StateMod network was created to reflect historical observed <br />stream flows at USGS gage 08220000, RIO GRANDE NEAR DEL NORTE, CO. The <br />period of record for this gage is 1890-1996. No adjustments or data filling was necessary <br />for this location, therefore, the tstool DMI reads the historical flows for this gage directly <br />from HydroBase. <br />08220500 <br />This stream flow location in the StateMod network was created to reflect historical observed <br />stream flows at USGS gage 08220500, PINOS CREEK NEAR DEL NORTE, CO. The <br />period of record for this gage is 1919-1998. No adjustments or data filling was necessary <br />for this location, therefore, the tstool DMI reads the historical flows for this gage directly <br />from HydroBase. <br />08221500 <br />This stream flow location in the StateMod network was created to reflect historical observed <br />stream flows at USGS gage 08221500, RIO GRANDE NEAR MONTE VISTA, CO. The <br />period of record for this gage is 1926-1998. No adjustments or data filling was necessary for <br />this location, therefore, the tstool DMI reads the historical flows for this gage directly from <br />HydroBase. <br />08223000 <br />This stream flow location in the StateMod network was created to reflect historical observed <br />stream flows at USGS gage 08223000, RIO GRANDE AT ALAMOSA, CO. The period of <br />record for this gage is 1912-1998. No adjustments or data filling was necessary for this <br />location, therefore, the tstool DMI reads the historical flows for this gage directly from <br />HydroBase. <br />08223500 <br />This stream flow location in the StateMod network was created to reflect historical observed <br />stream flows at USGS gage 08223500, ROCK CREEK NEAR MONTE VISTA, CO. The <br />period of record for this gage is 1935-1970. Monthly flow estimates for the missing time <br />periods were developed in tstool using monthly logarithmic regression against the flows at <br />USGS gage 08219500, SOUTH FORK RIO GRANDE AT SOUTH FORK, CO. Statistical <br />measures of the regression results can be viewed in Table 1 below and the tstool log file <br />(ATTACHMENT 1). The tstool DMI reads the historical flows for each of these gages <br />directly from HydroBase. <br />C:Acdss\Task6-6.doc Prepare River System Files March 8, 2000 -Page 4 of 11 <br />