Well Drillers Near Mondovi, Wisconsin

A geological estimate for the Mondovi area.

Detailed Summary

Most sampled wells in the Mondovi region exhibit about 1 foot of topsoil, followed by 25–40 feet of sand, sand and gravel, or sandy loam. This unconsolidated material overlies a sequence of sandstone—beginning as soft/caving to semifirm/fine at first and becoming firm or hard at increasing depths. Sandstone is usually brown in color, with some wells noting a transition to gray sandstone below ~100–150 feet. The most consistently productive aquifer is the firm brown sandstone beginning around 30 to 40 feet. Residential wells usually achieve adequate yield (5–15+ GPM) by terminating within the upper portion of the brown sandstone layer at 45–80 feet total depth. High-capacity agricultural/irrigation wells or those seeking very high yields may extend into deeper sandstone, occasionally past 100 feet and sometimes exceeding 120–140 feet or more. Static water levels vary, but 15–40 feet below grade is typical for residential settings, with deeper drawdown for high capacity pumping.

Expected Geological Layers