Amendment No. 1 to Professional Services Agreement - Lawson Fisher Associates - Ironwood Pavement Restoration

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Mr. Michael J. Guzik, P.E. Lawson -Fisher Associates P.C. Ironwood Drive Improvements— South Bend, IN September 29, 2017 Page 2 sewer improvements are planned. Standard Penetration Test (SPT) sampling will be performed in the borings at 2Y2-ft Intervals. We anticipate that the borings will be performed with truck -mounted equipment and backfilled at completion of the field work with auger cuttings and bentonite chips. EEI will locate the test borings using measurements from existing site features shown on plans to be provided. We will also contact Indiana 811 to arrange an underground utility line location check and coordinate with the city to obtain the necessary permits; 2. Performing appropriate laboratory tests consistent with INDOT requirements including visual soil classification, hand penetrometer readings, moisture content, grain size analysis, and Atterberg limit determinations; and 3. Preparing a technical report which will include a summary of our findings and recommendations for geotechnical considerations regarding: a. Subgrade preparation and improvement, as necessary, for support of pavement and storm sewers (if necessary); b. Pavement design parameters; c. Re -use of onsite soil for fill; and d. Potential construction problems due to the subsurface conditions encountered (e.g., soft subgrade difficulties, dewatering, cut slopes, etc.). SCHEDULE We are typically able to mobilize to the site within two to three weeks of notice to proceed and coordination of our field activities with underground utility owners and the city. The field work will require one day to complete. After the field work is completed, the laboratory testing will take two to three weeks to complete. We anticipate submitting a geotechnical report within one to two weeks after the laboratory work is completed. COST We propose to provide our geotechnical services on a unit rate basis in accordance with the terms and conditions in an agreement to be drafted by your firm. The unit rates are provided in the attached Cost Estimate. For this, we estimate the total cost to be up to $5,820. Please recognize that the fee is based on the scope described herein. If any significant variations develop during the course of our evaluation, we will advise you so that our efforts can be effectively directed. As previously mentioned, we understand the project may be extended to South Bend Avenue. If considered, we anticipate fees for additional services to be up to $1,800 provided field activities are performed under the same mobilization and a single report is prepared for the entire project.