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<br />~;')--17
<br />".' ~,- )...,
<br />
<br />CONTENTS
<br />
<br />Abstract" '.' .... '..........., ,... ....... ......... ....""" ....... .......... ,............ ........, ,.................... .......... ......... ............... ....,...' ........' ............. I
<br />Introduction ...., ............. ,..., ..... '.... .'........ .......,..... ..'. ...... ..,...,..'."... .......,.....,., ............ ...........'.. ............ ...... .....,...,....' .............. I
<br />Purpose and scope. .........,.. ,... ......... .....,., ,... '..... ...........', ,........ ....... .......,..", ........... .....'"....,.. .......... ........ .........,. ...... ..'.. 2
<br />Acknowledgments...,...... '............. ........'.. ................ '..... ............ '...................,.....,.. ..................... ...., ....'..... .................. 2
<br />Sample collection and analysis ....'....................'...............,.,.'."..........,.......................,..........................,.............................. 4
<br />Sampling sites ................, ............... .......,. ......... ........,.. ...................... '.. ....... .......... ......... '.... ........... ........ ...................... 4
<br />Sampling methods '" '............... ..........'... ............,., ......... ....,........... .... ..................... ...............".. ................. .......... .... .... 4
<br />Analytical methods ........... ,. ,.' ..... ..........., ......... ...........'" ................ '........... .............,....... ..... .........,..... '............ ............ 5
<br />Description and organization of data "..'....................."..............'.......................................'..........................,..,.....'............. 6
<br />References ..,.. ......................,........ ............................. ........... .......'.' ......,........ ..'................ '... '.................... ,......'.. ........... ,.., ,.. 15
<br />Hydrologic and biological data. ....."...'. ........... ....... ..........,......., ............. ,...... '.... ...................... ............,. ,.., '.............. .....'..'.. 17
<br />
<br />PLATES
<br />
<br />[Plates are In pocket]
<br />
<br />I. Map showing location of data-collection sites in the Uncompahgre Project area and
<br />extent of irrigated area,
<br />2. Map showing location of data-collection sites and extent of irrigated area in the Grand Valley.
<br />
<br />FIGURES
<br />
<br />I. Map showing location of the Uncompahgre Project and the Grand Valley............................,.............,............ 3
<br />2-7. Maps showing ranges of:
<br />2. Downhole specific conductance of water from selected wells in the Uncompahgre Project area,
<br />October 1991, Well depths range from g to 60 feet....,.............................................................,...,...........". 7
<br />3. Downhole dissolved oxygen in water from selected wells in the Uncompahgre Project area,
<br />October 1991. Well depths range from 8 to 60 feet ...............'..........................................,......................... g
<br />4. Downhole specific conductance of water from selected wells in the Grand Valley, June-July 1991.
<br />Well depths range from 9to 100 feel...,..,.....,......,................................................,...........................,........... 9
<br />5. Downhole specific conductance of water from selected wells in the Grand Valley, March 1992.
<br />Well depths range from 9 to 100 feel..............................................................,......................,................,..,.. 10
<br />6, Downhole dissolved oxygen in water from selected wells in the Grand Valley, June-July 1991.
<br />Well depths range from 9 to 100 feel.........,...............,................,..............................,.................................. II
<br />7, Downhole dissolved oxygen in water from selected wells in the Grand Valley, March 1992.
<br />Well depths range from 9 to 100 feel.............................,..,........................................................................... 12
<br />8. Graph showing water-level altitude and specific conductance of water in welll43NO, Grand Valley,
<br />
<br />March 1992-March 1993 ...................",'..'...............,............,...........................,...................."...................... 13
<br />9. Graph showing historical water-level altitudes and concentrations of dissolved solids in water from
<br />wells 125Q5 and 208KO, located in the Grand Valley.........,.........,...............,....................,........................ 14
<br />
<br />CONTENTS III
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