Reso13 PC 13-09 2859 Initial Study Mitigated Negative Declaration Kensington

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Proposed Senior Assisted Living Facility PSI Project No. 575-308-2 August 3, 2011 Page 2 2.0 PROJECT INFORMATION 2.1 Proiect Authorization Professional Service Industries, Inc. (PSI) is pleased to submit our Geotechnical Engineering Services Report for the proposed Senior Assisted Living Facility at the subject site. Our evaluation was completed in general accordance with the scope of work as outlined in our Proposal Number 575-44659, dated June 10, 2011. Written authorization was provided by Mr. William Shields of Fountain Square Development West, LLC., on June 24, 2011. 2.2 Site Location and Description The subject property is located adjacent to the southwest corner of Oakwood Drive and EI Camino Real in Redwood City, San Mateo County, California. The Subject Property is defined by the County of San Mateo Assessors Office as Assessors Parcel Numbers (APNs) 059-172- 070, 059-172-370, and 059-172-380. The site is a roughly rectangular-shaped property measuring approximately 45,000 square feet in plan area. At the time of our fieldwork, the site was developed with two buildings, Jackson Fine Jewelers and a former restaurant, both located in the eastern portion of the site. The two buildings share a highly distressed asphalt parking lot and limited landscaping. The southwestern portion of the subject property is undeveloped other than two small sheds and is separated from the two buildings by a fence. The property slopes gently downward to the north, with an elevation (estimated from the Palo Alto, California USGS topographic map) of approximately 38 feet above mean sea level. 2.3 Proiect Understandinq PSI understands that it is currently planned to develop the site with a two-story wood frame, slab on grade building for use as a senior care facility at the subject site. The structure is planned to be approximately 16,000 square feet in plan area. Additional improvements will include associated utilities and asphalt-paved parking. An expected maximum column load of 40 kips and typical continuous footing load of 1,800 plf (dead loads) were provided. A scaled site plan with the location of the proposed building and improvements indicated was provided for our use by William Shields via Steinberg Architects. The finished floor elevation of the building was not furnished to us, but for the purposes of this report, we have assumed that cuts and fills will not exceed 2 feet. Any changes to the project from that stated above will need to be addressed at the time the information becomes available. 2.4 Purpose and Scope of Services The purpose of our geotechnical evaluation was to assess the subsurface soil conditions at the site in order to provide appropriate recommendations for site preparation and foundation design. Our evaluation was in general accordance with the scope of work outlined in our Proposal Number 575-44659, dated June 10, 2011. Our scope of services included six (6) Standard Penetration Test (SPT) borings, drilled to depths of between approximately 6-'/2 and 51-'/2 feet below the existing ground surface, two (2) hand-augered borings, and the preparation of this geotechnical report. This report briefly