Kempner sits at the junction of US-190 and RR 2313 along the Lampasas River, on the Edwards Plateau margin and the Lampasas Cut Plain. This is the most limestone-dominated ground of any city we serve, and the furthest from the Blackland Prairie.
The Texas Almanac describes Lampasas County soils as chiefly shallow and sometimes stony clays and loams over a limestone base, with darker richer soils in the lowland areas along the riverbeds, on high rolling prairie with steep slopes and limestone benches that give the landscape a stairstep look.
So on the uplands you have shallow stony soil over rock, often within a foot or two. Down in the river bottoms you get deeper, darker clays that do move. Expansive clay is the least of the concerns here. Stony shallow rock is the dominant condition.
The practical version: a Kempner job usually means a long private drive on rough ground, an equipment or barn pad, or a house slab on acreage. It rarely means a suburban driveway, and it should not be priced like one.