What is the main purpose of drilling logs?

The primary purpose of drilling logs is to record geological information and water levels encountered during the drilling process. This documentation plays a crucial role in understanding subsurface conditions, which can include variations in soil or rock types and the presence of water aquifers. The geological information recorded can inform future drilling projects, help assess aquifer health, and provide insights necessary for environmental assessments or resource management.

Water level data is also vital as it helps in evaluating the potential yield of a well and the effects of surrounding environmental conditions on groundwater. This combination of geological data and water level measurements is essential for making informed decisions regarding water resources and ensuring compliance with regulations related to groundwater extraction.

While tracking the drilling team's performance, the amount of water pumped, and monitoring equipment usage are important aspects of drilling operations, they are secondary to the fundamental objective of accurately capturing the geological characteristics and hydrological conditions encountered during drilling. This information is foundational for assessing the viability and safety of the water sources being tapped into.