Available for download is the 2011 Water Study for High Prairie. The PDF version of the document contains color maps and charts that are easier to read than the printed version being circulated. The file is large (7.1 MB) and may take a few minutes to download. Please be patient, it’s worth the wait.

The Hydrologic Information Report (Supporting the Water Availability Assessment for Swale Creek and Little Klickitat Subbasins) was completed in 2007 for the WIRA-30 Water Resource Planning and Advisory Committee by Aspect Consulting. Well levels were monitored for 12 wells on High Prairie. These data were combined with well logs and geologic information to develop a projection of the groundwater availability in the Swale Creek subbasin, which includes High Prairie.

The report covers an area from Status Pass, just east of Highway 97 to the crest of the Columbia Hills, south of High Prairie. Though it is broken into two hydrologic units, the portion of the report covering Swale Creek subbasin concentrates on the water availability and use east of Swale canyon. Maps and diagrams of the study area reveal the most information even though there is little discussion of High Prairie in the narrative portion of the report.

Download the full report (PDF 7MB) and use the magnification tools in Acrobat Reader to zoom into the detail of the maps and diagrams.