What is the allowed tolerance for Moisture Standard Counts?

The allowed tolerance for Moisture Standard Counts being 2% or less is based on industry standards and practices that dictate acceptable moisture levels in various soil types during earthwork processes. Maintaining moisture within this specified tolerance is critical for ensuring optimal compaction and stability of the soil. If the moisture content exceeds this tolerance, it may adversely affect the engineering properties of the soil, leading to reduced strength and increased compressibility.

Adhering to a 2% tolerance helps to ensure that the soil can be compacted properly during construction, which is essential for achieving the desired performance of structures built on or within this soil. This tolerance supports successful project outcomes by mitigating risks related to moisture-induced problems, such as settlement and erosion.

In contrast, the other options represent moisture standard count tolerances that are either too lenient or exceed the recognized and accepted limits for proper soil management in earthwork applications. Maintaining the correct moisture content is vital for stability, and a tolerance above 2% would not adequately ensure that structural integrity and soil performance are met.