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MEMORANDUM July 8, 1977 TO: Director of Planning FROM: Director of Engineering Services SUBJECT: Report on Tentative Map, Tract 3897, as required by Section 2-2.07, Article 1, Chapter 1, Title II of the Ordinance Code. This report represents consideration by the Department of Engineering Services and may not contain comments on all of the concerns of other City Departments an interested public agencies. Streets Hopyard Road and Black Avenue are existing and no changes are contemplated. A four foot wide separated sidewalk will be re- quired along the Black Avenue frontage with bicycle traffic in the street area adjacent to the curb. A ten foot wide sidewalk will be required along the Hopyard Road frontage for combined pedestrian-bicycle use. A five foot wide sidewalk will be re- quired adjacent tb the curb around the perimeter of the frontage road bulb. Handicapped ramps will be installed as required. The interior streets will be nominal private drives with blanket public service easements to afford access to service vehicles. The precise design of these interior drives will be subject to review of final design plans. 6" vertical concrete curbs will be required adjacent to landscape areas. Storm Drainage Storm runoff from this development will be collected on site and channeled to the existing on-site storm drain system. Concrete valley gutters will be required along portions of the centerline of the interior drives. Approval should be withheld pending final design. Sanitary Sewer System Each dwelling unit in this development will have a private lateral which connects to a public main in the interior drive. The pro- posed public system will flow to the existing 10" sewer in Black Avenue and then to the Sunol Plant. Approval should be withheld pending final design.