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April 3, 2017 2 Proposal No.: SWP-17-058 Column loads are assumed to not exceed 80 kips. Associated facilities are anticipated to include parking areas and landscaping. The site is currently vacant. The project is located in an area where alluvial materials are present including expansive clays. Some artificial fill is anticipated due to previous grading for the adjacent park and street improvements. Primary geotechnical and geologic constraints for this project are anticipated to include settlement, corrosion, and expansion potentials of the on-site alluvium, and the extent of remedial grading and alluvial removals to address deficient soil conditions. The project site is not within a currently designated fault zone or liquefaction zone, although shallow groundwater may be present. The purpose of our study will be to explore the subsurface conditions and provide geotechnical recommendations for project design. This proposal contains a brief project description, our proposed approach to the project based upon our initial assessment of site conditions and readily available information, our proposed scope of services, schedule, and proposed fees. Since detailed services may involve greater expense, we ask that our clients participate in determining the level of service that will provide adequate information for their purposes. Please review this information and our proposed scope. If you should have any questions or suggested revisions to our scope, please do not hesitate to contact the signatories of this proposal. Our proposal is based upon the assumption that we will be provided full access to the site during normal business hours (M-F, 7am to 6pm) to complete field activities and that drilling with a gasoline powered drill rig equipped with a 140-pound hammer to drive the soil samplers and a cone penetrometer rig can be used at the site. PROPOSED SCOPE OF SERVICES Our scope will include performing subsurface exploration, laboratory testing, and preparing one report of our findings in accordance with the CBC and CGS Note 48 requirements (October 2013 revision) for geotechnical reports submitted to OSHPD. Based on the subsurface data and our observations, we will perform analyses and prepare a report with our conclusions and recommendations regarding geotechnical and geologic aspects of the project. As required by the CBC and OSHPD, our report will be signed and stamped by a California registered Geotechnical Engineer and a Certified Engineering Geologist. Task 1 - Literature Review We propose to begin our services by reviewing select geologic and geotechnical literature pertaining to the project. This will include a review of various hazard, fault and geologic maps prepared by the California Geological Survey, the U.S. Geological Survey, San Joaquin County, the City of Stockton and other governmental agencies as they relate to the site. Task 2 - Utility Coordination, USA Layout Each of our proposed field exploration locations will be located and marked in the field, and cleared with known utility lines as identified by Underground Service Alert [USA]. Our proposed exploration locations will be located in the field by hand measuring devices such as tape or a wheel, based on the control provided, and a consumer grade hand-held GPS (accuracy +/- 15 feet). The accuracy of location will be governed by the method used. As USA typically will not EARTH SYSTEMS SOUTHWEST