How often should soil samples be collected during tank removal?

Collecting soil samples at regular intervals during tank removal is essential for accurately assessing any potential contamination that may have occurred due to leaks or spills from the heating oil tank. By taking samples at multiple points throughout the removal process, supervisors can gather comprehensive data on the contaminants present in the soil. This method not only provides a more reliable picture of the environmental impact but also helps in determining the necessary remediation steps.

Taking samples just once or on a fixed daily schedule may not capture the variability of contamination levels that could occur throughout the tank removal process. Regular intervals allow for a thorough understanding of the site conditions and can help ensure that any potential issues are identified and addressed more promptly. Therefore, sampling at regular intervals until sufficient data is collected is the most effective approach for ensuring environmental safety and compliance with regulatory requirements.