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CONTENTS <br />Introduction ..................................................... <br />Purpose and Scope ................................. <br />Rainfall Data ................................................... <br />Stream Gaging Data ........................................ <br />Rainfall Runoff Water-Quality Data ............... <br />Lake Water-Quality Data ................................ <br />Summan ......................................................... <br />List of Figures <br />Figure 1. Streams and hydrologic uiuts of the upper Los Piiios River ~~-atershed ............................................... 2 <br />2. Photographs of floods and debris flows in the upper Los Pinos River ~~ atershed ................................ 3 <br />3. Locations of raingages, stream gages, and «~ater-quality sampling sites ............................................. ~ <br />~. Rainfall data compiled from USGS Station A-4 and <br />CoCoRAHS site CO-LP-32, Juh--October 2006 .................................................................................. 6 <br />5. Staff gage at the Jack Creek culvert for County Road ~Ola ................................................................. 7 <br />6. Stage-discharge relationship for determining discharge from <br />stream stage at South Fork Weasel Creelc ............................................................................................ 7 <br />7. Stream discharge and stage hydrographs for South Fork Weasel Creelc <br />and Root Creek, Juh -October 2006 ..................................................................................................... 8 <br />8. Stream stage hydrographs for Grimes Creek and Market Creek, July-October 2006 .......................... 9 <br />9. Flood h~rdrograph for Vallecito Creek and rainfall at site A-~ ............................................................. 10 <br />10. Rainfall runoff ~~~ater-quality data for selected streams in the upper Los Pinos River watershed ........ 12 <br />11. Labe profiles of specific conductance and dissolved oxygen by season <br />for the deep end of Vallecito Reservoir, 1996-2006 .............................................................................14 <br />12. Lake profiles of specific conductance and dissolved oxygen by season <br />for the center of Vallecito Reservoir, 1996-2006 .................................................................................. 1~ <br />13. Vallecito Reservoir waterquality data, 200-06 .................................................................................. 17 <br />List of Tables <br />Table 1. Water-quality data from rainfall nmoff samples in streams <br />of the upper Los Pii'ios River ~~ atershed ................................................................................................. 11 <br />2. Water-quality data from Vallecito Reservoir, 2005-06 .......................................................................... 16 <br />CONTENTS i <br />