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City of Redwood City Redwood Shores Lagoon/Belmont Slough Pump Station reinforced concrete construction and located on the north side of the intake structure and will have plan dimensions of approximately 8 feet by 12 feet and based 15 feet below existing site grade. PROJECT TEAM Our team consists of Scott M. Leek, P.E., G.E., Principal Engineer, and Erin Steiner, P.E., Senior Project Engineer. Scott and Erin will be supported by various members of our professional staff. We are prepared to begin the scope of work presented below. SCOPE OF GEOTECHNICAL SERVICES Field Exploration As requested, we plan to complete one conventional boring to a depth of approximately 30 feet. We will collect soil samples for laboratory testing with the conventional hollow-stem auger boring. We will mark the boring location and notify you and Underground Service Alert (USA) prior to beginning fieldwork so that public or private underground utilities can be identified. We will employ a private utility locator. Please note that our private utility locator cannot locate non-metallic pipes. The boring will be permitted and backfilled with cement grout in accordance with San Mateo County guidelines. Spoils generated from our borings will be placed in landscape areas or at a nearby on-site location designated by you. This proposal specifically excludes the assessment of environmental characteristics, particularly those involving hazardous substances at the site. In the event that obviously suspicious subsurface materials are encountered visually or by odor in the geotechnical test borings, such borings will be immediately terminated until we receive direction from you. TRC will notify you as soon as possible of such an occurrence, and we will both mutually decide whether to continue, modify, or cease the remainder of the drilling program and whether an environmental assessment should be conducted. All added costs incurred because of suspected hazardous substances will be charged on a time-and-expense basis in accordance with the attached rate sheet, over and above the established fees for the site investigation. Laboratory Testing We will conduct laboratory testing on the sampled soils to evaluate the engineering properties. This testing will include 1) moisture contents and dry densities, 2) Plasticity Index (PI) tests on a representative soil samples to evaluate expansion potential and liquefaction behavior, 3) washed-sieve analyses, and 4) we may perform other tests to aid in our analysis of settlement, bearing capacity, liquefaction potential, and/or other geotechnically related items. Office Studies We will review the field and laboratory data and perform engineering analysis to evaluate site earthwork, foundations, retaining walls and slabs. We will prepare a report that includes the results of our CTRC Page 2 172484