Reso PC15-11 PC Reso (3107) Tentative Map 150 ECR and 20 Avondale

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entire street frontage of the project. The main for the project will extend from a connection to the 6" main on El Camino Real to the nearest point of connection to the 8" main westerly of the project on Avondale. New water main(s) shall be constructed and installed in accordance with the City's Engineering Standards and as directed by the City Engineer. 27. The water main on the project site shall be a public main, at least 8" in size, and designed and installed per City Standards. The project shall explore whether providing a looped water main (connecting to the City system at two locations) is feasible. If the main is a dead-end line , a blow off valve shall be provided at the end of the line to allow for flushing of the line. 28 . The project is not currently proposing to use permeable pavers within the private street/driveway. If the project changes to include permeable pavers, the City standard utility trench detail must be adhered to below the pavement section required for the permeable pavers where a public water main is located below a permeable pavement section . In some cases, this may require additional cover over the water main to allow for both the required stormwater volume and adequate water main protection. 29. Prior to issuance of any grading or encroachment permit, applicant shall submit to City, and obtain approval of, an evaluation and report, prepared by a licensed engineer, in conformance with the City's Engineering Standards, demonstrating that the proposed water main meets the domestic and fire flow requirements in accordance with City Code Section 38.26 and the International Fire Code. 30. Backflow protection on fire, and irrigation water services shall be required . The backflow preventer shall be above grade, and shall be located on private property, accessible to the Public Works division and/or Fire Department from the outside for testing. 31 . Prior to issuance of any encroachment permit, applicant shall submit to City, and obtain approval of, an evaluation and report, prepared by a licensed engineer, in conformance with the City's Engineering Standards, demonstrating that the existing sewer mains have sufficient capacity for the Project. The study shall consider existing , project, other approved projects, and applications currently under review in determining the needed capacity. If the existing sewer main is not sufficient as determined by the City Engineer, applicant shall, as part of the Project, construct and install new sewer mains sufficient to meet such requirements, in accordance with the City's Engineering standards and as directed by the City Engineer to the City Engineer's satisfaction. 32. Redwood City has exceeded its Peak Wet Weather Flow (PWWF) capacity in the past. A methodology to reduce inflow and infiltration by pipe replacement was determined . The applicant shall reduce inflow and infiltration to offset increased sewer demand from the project by replacing aged sewer mains or pay an equivalent in-lieu fee. The length of pipe replacement required or the ATTY/RESO.3107/PC RESO TENTATIVE MAP 150 EL CAMINO & 20 AVONDALE REV: 06-23-15 VR Page 7 of 14