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approved plans during construction which affect the digital submittal, shall be resubmitted for GIS review no later than 1 month prior to scheduling a final inspection. The updated digital submittal will be checked and approved before the building permit will be finalized and certificate of occupancy granted (if applicable). For phased project, the digital submittal must be approved prior to the first occupancy of any phase. The information will be used for public safety and emergency response planning by the Police and Fire Departments. Refer to the "Digital Plan Submittal Requirements" for necessary data and file formatting requirements. ENGINEERING DEPARTMENT — LAND DEVELOPMENT — 925-931-5650 48. UTILITY UNDERGROUNDING: The applicant shall be responsible forthe undergrounding of the overhead utility lines across the project frontage on Dublin Canyon Road All utility lines shall be installed in conduit Only PG&E switch enclosures or capacity banks can be installed above ground provided the units are screened with landscaping to the satisfaction of the Director of Community Development. (Project Specific Condition) (Address this condition prior to issuance of an Occupancy Permit.) 49. The applicant's design engineer shall submit the following documents with the first submittal of the improvement plans: a. Stormwater Requirement Checklist with an exhibit showing existing impervious area, impervious area to be removed and replaced, and new impervious area to be created; b. Water demand calculations; c. Sanitary sewer load calculations; and d. Hydrologic and hydraulic calculations (Address these conditions prior to Building Permit issuance.) (Project Specific Condition) 50. GROUNDWATER WELL: Because the applicant intends to utilize an existing groundwater well for irrigation use, the applicant shall fill -out and submit to Zone 7 Water Agency a "Statement of Future Well Use". Said form is available for download at the following link: httr)://www.zone7water.com/imaaes/odf docs/permits/statement of future use.odf (Address this condition prior to issuance of an Occupancy Permit.) 51. GEOTECHNICAL RECOMMENDATIONS: The Updated Geotechnical Investigation by Geocon Consultants dated April 2020 (Project No. E9164-04-02) includes specific recommendations with respect to the site improvements. All of these recommendations shall be incorporated into the design. The following recommendations must be addressed in the final design: a. Recommendation 6.10.4 requires that retaining walls greater than 2 feet in retained height be provided with a drainage system to prevent hydrostatic pressure buildup. b. Recommendation 6.13.2 and .3 prohibits ponded water against any building foundations. BMP -1 immediately adjacent to the northern and western walls of the Community Center Building must have a barrier or liner shown on the bio -retention area detail. (Address these conditions prior to Building Permit issuance.) (Project Specific Condition)