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City of Arden Hills <br />2028 Pavement Management Project <br />Proposal QTB221496 <br />September4, 2025 <br />MDH Notification and Sealing Record <br />Since our planned exploration will be less than 15 feet in depth, the Minnesota Statutes will not require that <br />we complete any notifications or sealing records. If we extend any of the borings to a depth of 15 feet or <br />greater, the Statutes requires that we seal the boreholes and complete a Sealing Record. If 25 feet or greater, <br />the Statutes also require us to complete a Sealing Notification Form. If the Record or Form are required, we <br />will contact you to discuss the additional fees and sealing requirements. <br />Borehole Abandonment <br />We will backfill our exploration locations immediately after completing the drilling or coring at each location. <br />Minnesota Statutes require sealing temporary borings that are 15 feet deep or deeper. Based on our <br />proposed subsurface characterization depths, we currently do not anticipate having to seal any of the <br />boreholes with grout. Upon backfilling or sealing exploration locations, we will fill holes in pavements with a <br />temporary bituminous cold patch. <br />Over time, subsidence of borehole (core) backfill may occur, requiring releveling of surface grades or <br />replacing bituminous patches. We are not assuming responsibility for releveling or re -patching after we <br />complete our fieldwork. <br />Sample Review and Laboratory Testing <br />We will return recovered samples to our laboratory, where a geotechnical engineer will visually classify and <br />log them. To help classify the materials encountered and estimate the engineering properties necessary to <br />our analyses, we have budgeted to perform the following laboratory tests. <br />Table 1. Laboratory Tests <br />Moisture content D2216 Soil classification, moisture condition, and engineering <br />properties <br />Atterberg limits D4318 Soil plasticity, shrink/swell potential, engineering <br />parameters, suitability of soils for reuse <br />Sieve analysis D1140 Soil classification <br />Percent passing #200 sieve D1140 Soil classification, and evaluate frost susceptibility <br />Organic content D2974 Evaluate suitability of soils for reuse <br />We will determine the actual laboratory testing for the project depending on the encountered subsurface <br />conditions. If we identify a laboratory testing program that exceeds the budget included in this proposal but <br />provides additional value to the project, we will request authorization for the additional fees through a <br />Change Order. <br />Braun Intertec Page 5 <br />