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<br />XIII. COUNTY OF ALAMEDA PUBLIC WORKS AGENCY CONDITIONS <br /> <br />A. Prior to the issuance of any building permits on this site, a detailed grading <br />and drainage plan with supporting calculations and a completed Drainage <br />Review Checklist may be submitted to our office for review. The proposed <br />curb elevations are not to be less than 1.25 feet above the hydraulic grade <br />line, as shown in figure 14 of the Hydrology and Hydraulics Criteria <br />Summary, and at no point shall the curb grade be below the energy grade <br />line. Copies of the Drainage Review Checklist and Criteria Summary are <br />available from our office. <br /> <br />B. The applicant should provide measures to prevent the discharge of <br />contaminated materials into public drainage facilities. It is the <br />responsibility of the applicant to comply with Federal, State, or local water <br />quality standards and regulations. <br /> <br />C. This project is subject to a National Pollutant Discharge Elimination <br />System (NPDES) Permit. A "Notice of Intent" shall be filed with the State <br />Regional Water Quality Control Board. <br /> <br />D. Do not block runoff from adjacent properties. The drainage area map <br />developed for the hydrology design shall clearly indicate all areas tributary <br />to the project area. <br /> <br />E. Adequate provision for silt and erosion control in both construction and <br />post-construction phases of development should be provided. Grading <br />should be done in accordance with grading, erosion and sedimentation <br />control plans approved by the City of San Leandro. <br /> <br />F. This office recommends that all storm drains be no less than 12-inches in <br />diameter to minimize maintenance problems. <br /> <br />G. All paved slopes should be a minimum of 0.5%. <br /> <br />H. If a new strorm drain connection is proposed to be made to the District <br />facility, it will need to be noted on the plans that: <br /> <br />1. Acquire an encroachment permit from Caltrans for any work done within <br />the State right-of-way. Consult Caltrans for any road or traffic <br />requirements. <br /> <br />J. Any water well, cathodic protection well, or exploratory boring that is <br />shown on this map, is know to exist, is proposed, or is located during the <br />course of field operati,ms must be properly destroyed, backfilled, or <br /> <br />PLN2006-00104 <br />Recommended Conditions of Approval <br /> <br />Page 15 of 16 <br />May 7, 2007 <br />