Well Drillers Near Marquette, Michigan

A geological estimate for the Marquette area.

Detailed Summary

Based on a synthesis of the provided well logs for the Marquette area, the most common geological sequence begins with a surficial sand (or mixed sand and clay) horizon extending to an average of about 35–40 feet. This is often underlain by a significant clay (sometimes sandy) or clay-with-gravel sequence which typically extends to depths between 55 and 110 feet. The deeper portions of many wells (ranging from about 50–120 ft in the samples) frequently encounter gravel, sand & gravel, weathered sandstone, or a hard rock such as greenstone. Most residential wells are completed within these unconsolidated aquifers, with screen intervals set in the basal sand/gravel zone. Well casing (usually steel, 4–6 in diameter) generally reaches nearly the full depth. Static water levels show substantial variability but tend to fall between 10 ft and 60 ft below grade, reflecting a combination of surficial recharge and deeper flowpaths.

Expected Geological Layers