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City of Arden Hills <br />Project B2502087 <br />May 15, 2025 <br />Page 5 <br /> <br /> <br />Level 3 Dredged Material is not suitable for use or reuse. Sediment at O-3 is above the Tier 2 SRVs, and <br />as such, meets the Level 3 characteristic. <br /> <br />Per MPCA 2024 guidance, “if subsets of Management Levels exist within the project, dredged material <br />may be: <br /> <br /> “managed separately by levels, i.e. each subset of dredged material is managed at the <br />relevant Management Level; <br /> <br /> managed at the most restrictive Management Level, if separation and management by <br />subset is not feasible or desired; or, <br /> <br /> managed at the most restrictive Management Level if subsets from a given project or <br />multiple project, such as at a use/reuse staging area, are co-mingled prior to disposal.” <br />[breaks and bullets added for readability] <br /> <br />General <br /> <br />Our scope of our work was determined by our understanding of the rules and guidance of the MPCA as <br />they apply to needs of the City of Arden Hills. Therefore, the scope of work is not represented to <br />conform explicitly to current MPCA written guidance. <br /> <br />We appreciate the opportunity to provide our professional services on this project and look forward to <br />working with you in the future. Please contact Edward Pencak at 612.500.3752 or Brian Hoese <br />at 612.940.3270 if you have questions about the report or require additional information. <br /> <br />Sincerely, <br /> <br />BRAUN INTERTEC CORPORATION <br /> <br /> <br /> <br />Edward S. Pencak, PG Brian J. Hoese, PE <br />Project Scientist Director, Principal Engineer <br /> <br />Attachments: <br />Table 1: Summary of Sediment Testing Results <br />Figure 1: Sample Location Sketch <br />Laboratory Analytical Reports <br />