Amendment No 1 to PSA - Design Srvs. for SB Med Foundation Demo – American Structurepoint, Inc.

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Proposed Parking Lot / Beacon District, South Bend, Indiana Atlas Proposal No. 24-01654 / February 9, 2024 2 A reconnaissance of the project site will be made by a representative from our staff and the boring locations will be established in the field at that time. Atlas will contact Indiana 811 to locate underground utilities that are owned by the member utility companies; however, it is assumed that the owner's representative will accurately mark in the field the locations of all underground utilities that are part of the owner’s physical plant (i.e., all underground utilities that are not part of the Indiana 811 locate service members). This proposal does not include fees for the repair of, or other fees associated with, damaged underground utilities that are not accurately marked in the field and Atlas will not be responsible for costs associated with damages to underground utilities that are not accurately marked in the field. It is our understanding that American Structurepoint, Inc. will have a private underground utility locate done as part of the survey for this project and the results of that locate will be provided to fully clear our test boring locations of underground utilities. It is assumed that all underground utilities will be accurately and completely located and that all underground utilities will be accurately surveyed and mapped. Laboratory tests will be performed as necessary to establish the significant characteristics and parameters of the subsurface soils. The laboratory testing program tentatively includes moisture content tests, Atterberg limits tests and gradation analyses tests on samples selected by the geotechnical engineer; however, the actual laboratory testing program will depend upon the specific subsurface conditions encountered in the test borings and the soil samples obtained. A resilient modulus value to be used for pavement design will be estimated on the basis of classification test results. After completion of the field investigation and laboratory tests, an engineering report will be prepared containing recommendations to guide design and construction of new pavements and/or storm water management areas. ASSUMPTIONS  The test borings are readily accessible to a track-mounted ATV drill rig.  This proposal does not include costs for restitution for landscape damage and Atlas will not be responsible for unavoidable damage to landscaping.  Field drilling and sampling will be completed by drillers that are signatory to Local 150 Operating Engineers  A topographic map of the site will be made available before completion of the study. Ground surface elevations at test boring locations will be estimated based upon the provided topographic map, otherwise, ground surface elevations will be estimated from a county GIS website or Google Earth.  All auger cuttings that cannot be placed to backfill the boreholes can be distributed on-site. The scope of this investigation does not include characterization or containerization of the auger-cuttings and drilling fluids; or the off-site disposal of the auger cuttings, drillings fluids and/or containers.  The subsurface investigation outlined in this proposal assumes that there are no hazardous materials in the soil or in the ground water underlying the site and this study is not designed to detect or identify such materials. If it becomes apparent during the field investigation that hazardous materials may be present, field operations will be terminated. The investigation would be resumed only after renegotiation of the scope of services and fees to cover appropriate health and safety precautions and proper consideration of the new information.