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Bolton & Menk, Inc. Proposal QTB172950 February 17, 2023 Page 2 Depending on access requirements, ground conditions or potential utility conflicts, our field crew may alter the exploration locations from those proposed to facilitate accessibility. Our drilling activities may also impact the vegetation and may rut the surface to access boring locations. Restoration of vegetation and turf, if disturbed, is not part of our scope of services. Staking We will stake prospective subsurface exploration locations, as selected in consultation with you, and obtain surface elevations at those locations using GPS (Global Positioning System) technology. For purposes of linking the GPS data to an appropriate reference, we request that you provide CAD files indicating location/elevation references appropriate for this project. Utility Clearance Prior to drilling or excavating, we will contact Gopher State One Call and arrange for notification of the appropriate utility vendors to mark and clear the exploration locations of public underground utilities. You, or your authorized representative, are responsible to notify us before we begin our work of the presence and location of any underground objects or private utilities that are not the responsibility of public agencies. Permits We will obtain a right-of-way permit with the City of Arden Hills prior to beginning our fieldwork. We assume the City will waive permit fees as we will be completing the work for the City. Traffic Control Based on the low traffic levels on James Avenue, we propose to limit our traffic control to signs and cones to alert motorists to our work in the area. Penetration Test Borings We propose to drill two standard penetration test (SPT) borings for the project to nominal depths of 141/2 feet. We will perform standard penetration tests at 2 1/2-foot vertical intervals to a depth of about 14 1/2 feet, and at 5-foot intervals at greater depths, if required. If the intended boring depths do not extend through unsuitable material, we will extend the borings at least 5 feet into suitable material at greater depths. The additional information will help evaluate such issues as excavation depth and consolidation settlement among others. If we identify a need for deeper (or additional) borings, we will contact you prior to increasing our total estimated drilled footage and submit a Change Order summarizing the anticipated additional effort and the associated cost, for your review and authorization. Groundwater Measurements If the borings encounter groundwater during or immediately after drilling of each boring, we will record the observed depth on the boring logs. MDH Notification and Sealing Record Since our planned exploration will be less than 15 feet in depth, the Minnesota Statutes will not require that we complete any notifications or sealing records. If we extend any of the borings to a depth of 15 feet or BRAUN INTERTEC