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permit plan check plans. Said plan shall be subject to the review and approval of the City Engineer prior to the issuance of any building permits. 82. Unless otherwise approved by the City Engineer, drainage from the new roads, vineyards, existing house and barn, and new garage shall be conveyed through a vegetated bioswale along the Old Vineyard Avenue property frontage. If approved by the City Engineer, portions of the bioswale may be located within the excess City right-of-way along the property frontage. The applicant shall install bioswale plants that are appropriate for the soil and water conditions in the bioswale and that look appropriate in a grassland and/or oak woodland setting. The bioswale and landscape plans shall be included with the subdivision improvement plans and shall be subject to the review and approval of the City Engineer and Planning Directory prior to the issuance of any building permits. 83. The applicants shall follow the recommendations listed in Terrasearch Inc. report entitled "Evaluation of Dry Wells" dated June 22, 2007. The final design and location of the dry wells shall be subject to the final review and approval by the City Engineer prior to installation. 84. The utility plan submitted for issuance of building permits shall be modified to show a second fire hydrant near the proposed estate home. The final location of all fire hydrants on the property shall be subject to the review and approval by the Fire Marshal and City Engineer. 85. The improvement plans shall accurately show the existing location of Safreno Way across Old Vineyard Avenue. The proposed road connection at Old Vineyard Avenue shall align opposite of Safreno Way, subject to the review and approval of the City Engineer. 86. A sanitary sewer lateral connecting abuilding/house having a finished pad grade less than one foot above the nearest up-stream publicly maintained sanitary sewer manhole shall be required to install a backflow device on the building/house lateral in accordance with the requirements of the Uniform Plumbing Code. This device shall be installed by the building/house plumber between the two-way cleanout at the street right-of-way line and the building/house. Any building pad falling within this criteria shall be flagged on the street improvement plans. 87. At the time the water and sewer lines are installed on this property, the existing house shall be connected to City water and sewer and any existing septic tank and leach field located on the property shall be abandoned per Alameda County Health Department regulations. 88. The existing well on the site may be retained for use for future landscape water, etc. The well system shall be separated from the domestic potable water system with a "back-flow" preventer designed and installed to the satisfaction of the City 17