If groundwater is found on site, what method cannot be used for closure?

The reason the first choice is correct is that a Generic Remedy Cleanup cannot be implemented effectively in scenarios where groundwater is present on-site. This method typically involves a predetermined set of remediation techniques that may not adequately address the specific conditions or contaminants associated with groundwater issues.

In contrast, the other options are valid approaches in managing sites with groundwater contamination. A Documentation Audit involves reviewing records and data related to past site conditions, which can provide valuable insights for planning remediation efforts. A Site Assessment Report is critical for understanding the extent of contamination and informing the appropriate remedial actions to ensure effective closure. The Soil Removal Technique is often employed when contaminated soil must be excavated, which can help in managing and mitigating potential risks posed by groundwater contamination.

Thus, while each of the other methods can contribute to site closure in the presence of groundwater, a Generic Remedy Cleanup lacks the necessary flexibility and specificity required to address the complexities of contamination in such environments.