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City of Arden Hills May 3, 2019 Page 3 4. Schedule, Bore Hole Samples and Laboratory Testing Based on our current drilling backlog, we anticipate that we can mobilize our truck mounted auger drill to the site in 5 to 6 weeks following receipt of the signed authorization. However, our schedule changes frequently. It is our understanding that the City has placed the project priority in the following order: Hazelnut Park Parking Lot, Arden Oaks Street and Utility Imp., 2020 PMP Street and Utility Imp., and City Hall Parking Lot and Perry Park Parking Lot. Please contact us with your timing of boring results as we may be able to adjust the aforementioned schedule. Laboratory work and report preparation will take about 2 weeks following completion of the field work. It should be noted that this schedule may change based on timing of authorization, site conditions and other factors. Should our anticipated schedule change we will let you know. This estimate is based on work being completed during daylight business hours (7am to 5pm), Monday through Friday. Additional charges will apply to night or weekend drilling. Samples retrieved during drilling will be returned to our laboratory where they will be reviewed, classified using the Unified Soil Classification System (USCS) and logged under the direction of a geotechnical engineer. Select samples may be set aside for laboratory testing. We may perform routine laboratory tests on selected soil samples obtained from the exploration. This may include determinations of natural moisture content and gradations on select sand samples from the borings. Such tests will aid in determining soil classification and properties and potential behavior characteristics to help guide our recommendations. 5. Geotechnical Engineering Reports Information gathered for this project will be used to prepare three geotechnical reports (2020 PMP, Arden Oaks and the Parking Lots). The reports will summarize our findings and provide a discussion of subsurface soil and groundwater conditions encountered in our borings and how they may affect the proposed construction of utilities and pavements. The reports will also provide an estimated R-value, recommendations for subgrade preparation, pavement design thicknesses along with estimates of ground water depths/elevations, site grading, and a discussion of soils for use as structural fill and site fill. We will provide you and any identified members of your design/project team with a PDF copy of our geotechnical reports. If requested, we will also provide you with an original hard copy. This geotechnical proposal is presented for engineering services to determine the structural properties of the soil at the specified site. It does not cover an environmental assessment of the site, or environmental testing of the soil or groundwater.