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California", by Fugro, dated September 2009 (Project No. 3045.059), BSK will prepare a <br />geotechnical paper study to provide construction considerations and limitations, including <br />excavation, temporary shoring systems and sloping of trench walls, caving and excavation <br />stability, dewatering, and reuse of excavated soils and recommendations for trench bedding <br />and backfill. The geotechnical recommendations from the paper study will be incorporated <br />into the design documents. <br />Task 2.3: Update Topographic Survey: Towill, Inc, a subconsultant to LEE & RO, will <br />establish ground control and perform field survey to update and furnish the current topo <br />base map of WPCP including approximately 2,000 LF of Davis Street from WPCP to <br />Doolittle Drive including street centerline and right-of-way. The topo base map will also <br />include the SE line inside the treatment plant. Supplemental field survey will include <br />dipping all sewer and storm drain manholes in Davis Street, picking up utility paint marks <br />and utility pothole locations. <br />Task 2.4: Conduct Utility Locating: Subtronic Corporation, a subconsultant to LEE & <br />RO, will perform utility locating using electromagnetic field induction and Ground <br />Penetrating Radar. Non-metallic utilities with tracer wire will also be located. <br />Task 2.5: Conduct Utility Potholing: Subtronic Corporation, a subconsultant to LEE & <br />RO, will perform up to 10 utility potholes using vacuum excavation, to take depth <br />measurements to the top of the utilities, including slurry backfilling if required, compaction <br />and resurfacing with hot mix asphalt per City requirements. This will include obtaining all <br />necessary permits and traffic control. <br />Task 2.6: Conduct CCTV inspection of 30" and 33" SS Line: Subtronic Corporation, a <br />subconsultant to LEE & RO, will perform CCTV inspection of approximately 1,600 LF <br />each of 30" SS and 33" SS in Davis Street from the Headworks to Doolittle Drive. The <br />inspection will be performed at nighttime during low flows, using high resolution color <br />Consulting Services Agreement between City of San Leandro and Last revised 02/28/2020 <br />Lee & Ro for SE Line Replacement and Davis St. Manhole Replacement Exhibit A - Page 3 of 8 <br />