What is the recommended practice when excavating soil in an area with high clay content?

Monitoring moisture levels carefully when excavating soil in an area with high clay content is crucial because clay is highly susceptible to changes in moisture. When clay soil is too wet, it can become unstable and prone to compaction, which makes excavation difficult and can lead to equipment getting stuck. On the other hand, if the clay is too dry, it can become hard and brittle, making it more difficult to break up and excavate effectively.

By carefully managing the moisture levels in the clay, you can optimize the workability of the soil, reduce the risk of compaction problems, and improve the overall efficiency of the excavation process. This attention to moisture prevents operational delays and ensures a safer working environment. The other options do not address this specific concern about moisture management, which is a critical factor in working with clay soils.