Agenda - Council - 07/11/2023 - Laserfiche WebLink

Home

Bolton & Menk, Inc. Proposal QTB175606 April 4, 2023 Page 5 MDH Sealing Record We are planning the deepest borings to be at least 15 feet and less than 25 feet. Therefore, the Minnesota Statutes require us to complete a Sealing Record after our completion of the borings. Our proposal includes the fees for the Minnesota Department of Health (MDH) Sealing Record. In the event we extend our borings to a depth of 25 feet or greater, the MDH requires us to complete and submit a Sealing Notification Form for the project. The submission of the Sealing Notification Form will require a signature from the property owner (or agent). If we extend our borings to a depth of 25 feet or greater, we will forward on to you a copy of the form for signature and increase our total fees by $100. Borehole Abandonment We will backfill our exploration locations immediately after completing the drilling at each location. Minnesota Statutes require sealing temporary borings that are 15 feet deep or deeper. Based on our proposed subsurface characterization depths, we will seal 1,100 linear feet of borings with grout. Our lump sum fee includes those fees associated with the sealing. Sealing boreholes with grout will prevent us from disposing of auger boring cuttings in the completed boreholes. Unless you direct us otherwise, we intend to thin -spread the cuttings around the boreholes. If we cannot thin -spread cuttings, we will put them in a container left on site. We can provide off -site disposal of the cuttings for an additional fee. Over time, subsidence of borehole backfill may occur, requiring releveling of surface grades or replacing bituminous or concrete patches. We are not assuming responsibility for re -leveling or re -patching after we complete our fieldwork. Sample Review and Laboratory Testing We will return recovered samples to our laboratory, where a geotechnical engineer will visually classify and log them. To help classify the materials encountered and estimate the engineering properties necessary to our analyses, we have budgeted to perform the following laboratory tests. Table 1. Laboratory Tests Test Name Moisture content Percent passing #200 sieve ASTM Test Method Purpose D2216 Soil classification, moisture condition, and engineering properties D1140 Soil classification, and evaluate frost susceptibility Atterberg Limits D4318 Soil plasticity, shrink/swell potential, engineering parameters, suitability of soils for reuse BRAUN INTERTEC