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City of Arden Hills <br />Proposal QTB041553 <br />July 6, 2016 <br />Page 2 <br />We will stake prospective subsurface exploration locations and obtain surface elevations at those <br />locations using GPS technology. For purposes of linking the GPS data to an appropriate reference, we <br />request that you provide CAD files indicating location/elevation references appropriate for this project, <br />or give us contact information for the consultant that might have such information. <br />Depending on access requirements, ground conditions or potential utility conflicts, our field crew may <br />alter the exploration locations from those proposed to facilitate accessibility. <br />Prior to drilling or excavating, we will contact Gopher State One Call and arrange for notification to the <br />appropriate utility vendors to mark and clear the exploration locations of public underground utilities. <br />You or your authorized representative are responsible to notify us before we begin our work of the <br />presence and location of any underground objects or private utilities that are not the responsibility of <br />public agencies. <br />Penetration Test Borings <br />We propose to drill two standard penetration test borings for the tennis court, extending them to 15 feet <br />each. Standard penetration tests will be performed at 2 1/2-foot vertical intervals to boring termination. <br />If groundwater is encountered in the boreholes, the depth where it is observed will be recorded on the <br />boring logs. <br />If deeper borings (or additional borings) are needed, we will contact you prior to increasing our total <br />estimated drilled footage and submit a Change Order summarizing the anticipated additional effort and <br />the associated cost, for your review and authorization. <br />Borehole Abandonment <br />Minnesota Well Code requires sealing of any boring or core that encounters groundwater and is either <br />greater than 25 feet deep or penetrates a confining layer. <br />As it appears we are outside the boundaries of the Twin Cities Army Ammunition Plant (TCAAP) Special <br />Well and Boring Construction Areas, we currently do not anticipate having to seal any of the boreholes. <br />Sample Review and Laboratory Testing <br />Soil samples will be returned to our laboratory, where they will be visually classified and logged by a <br />geotechnical engineer. To help classify the materials encountered and estimate their engineering <br />properties, we have budgeted to perform six (6) moisture content tests, two (2) mechanical analyses <br />(through a #200 sieve only), and two (2) organic content tests. <br />Reporting <br />Data obtained from the borings and laboratory tests will be used to evaluate the subsurface profile and <br />groundwater conditions, perform engineering analyses related to court design and performance and <br />prepare a report, including: <br />A CAD sketch showing project components, limits, and exploration locations. <br />