Kansas Geological Survey, Open-file Report 2007-33
by
Brett Bennett and Mary Brohammer
KGS Open-file Report 2007-33
April 2007
The field-measurement phase of the 2007 annual cooperative water-level measurement program was successfully completed by both the Kansas Geological Survey (KGS) and the Division of Water Resources (DWR), Kansas Department of Agriculture, prior to April 5, 2007. The annual program is designed to regionally sample the High Plains aquifer in Kansas so trends can be established and evaluated for effective incorporation into water-resource management strategies. Water levels were recorded in 78.6% of the 1,418 network wells in 2007. The KGS measured 504 wells and the three DWR offices (Garden City, Stafford, and Stockton) measured 914 wells. An ice storm followed by significant snowfall in western Kansas in early January 2007 hampered acquisition efforts and accounts for the large number of wells that were not measured this year in comparison to other years. Three trips were made by KGS staff to acquire data: one in January, one in late February, and one in early April.
Based on spatial analysis of the 2006 annual network-well distribution, 10 locations were identified that required additional water-level data to permit continuous and uniform sampling of the High Plains aquifer. Wells were identified in these locations with sufficient construction and historical information and landowner cooperation to attempt a water-level measurement. Of the 10 wells, 5 were actually measured. These 10 provisional wells were incorporated into the network for 2008 and will be measured in all future measurement campaigns unless the wells become unreliable or are plugged. Yearly geostatistical studies will define undersampled areas and will be used to select optimum locations for replacement wells to eliminate extraneous holes in the hexagonal network.
| January 2007 Acquisition | KGS | DWR | Total |
|---|---|---|---|
| Number of network wells in 2007 | 504 | 914 | 1,418 |
| Number of counties | 14 | 34 | 48 |
| 2007 provisional (new) wells | 6 | 4 | 10 |
| # provisional wells measured | 1 | 4 | 5 |
| # wells successfully measured | 274 | 840 | 1,114 |
| # wells MIA | 230 | 70 | 300 |
| # QA wells (KGS only) | 50 | ||
| # wells targeted for removal | 4 | 2 | 6 |
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Kansas Geological Survey, Geophysics
Placed online Dec. 15, 2011
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