The results of site assessments conducted under MUSTR regulations must be kept by the owner for at least how many years?

The correct time frame for retaining the results of site assessments conducted under MUSTR regulations is three years. This requirement ensures that records are available for review in case of future inspections, compliance checks, or potential environmental assessments. Maintaining these records helps in tracking the history of the site, addressing any contamination issues, and demonstrating adherence to regulatory obligations.

By retaining the documentation for this duration, owners are better equipped to manage their facilities and respond to any inquiries related to their environmental impact or compliance with safety standards. The three-year requirement strikes a balance between keeping the information relevant and manageable for owners.