Excavate Test Hole to Expose Buried Components

What happens here

The builder proceeds to dig a test hole next to the retaining wall, aiming to expose the geogrid and drainage aggregate for the inspector. He uses a post hole digger, which is suitable for penetrating the heavily compacted soil. He explicitly states that the soil is so tightly packed it feels like 'digging through concrete,' underscoring the quality of the original construction. After considerable effort, he successfully exposes a section of the geogrid and the underlying drainage aggregate, confirming their presence and proper depth without compromising the wall's structure.

Goal: Physically expose the geogrid and drainage aggregate without compromising the retaining wall.