TL;DR
Utah's three main aquifer systems — basin-fill, bedrock, and Colorado Plateau sandstone — drive everything about your well: depth, yield, water quality, and lifespan. Knowing which one sits under your property is step one of any well project.
Summary
From the Great Basin to the Colorado Plateau, Utah sits on a patchwork of aquifers that determine how deep you'll drill, how much water you'll get, and how reliable it will be. Here's what's beneath your property.