ORD 1975 - Laserfiche WebLink

82. The applicant shall label all on-site storm drain inlets with the wording, "No Dumping -- Drains to Bay" using City-approved methods and materials. On-site storm drain facilities shall be cleaned a minimum of twice a year as follows: immediately prior to October 15 and once in January. Additional cleaning may be required if found necessary by the City Engineer/Chief Building Official. 83. Unless waived by the City Engineer, prior to the issuance of a building permit and recordation of a Final Map, the applicant shall complete impervious surface Form A of the storm water control requirements and submit this to the Public Works and Engineering Department. 84. The utilities within the development shall be private and maintained by the HOA. There shall be a separate water supply for the domestic and irrigation system and fire sprinkler system. Where the new water laterals connect to the City water main at Vineyard Avenue, there shall be a water meter and backflow device for the domestic and irrigation systems. The fire sprinkler line shall be looped unless otherwise approved by the Fire Marshall and City Engineer and have backflow devices and each connection. The sizing of the on-site utility lines shall be subject to the review and approval of the Fire Marshall and City Engineer. 85. The applicant engineer shall submit storm drain hydraulic calculation to verify that the hydraulic grade line does not exceed city design standards. 86. The building shall pads shall be constructed above the 100-year flood elevation as established by Alameda County Flood Control Zone 7. The property shall be graded such that no storm water runs directly to the Arroyo. URBAN STORMWATER RUNOFF REQUIREMENTS Stormwater Design Requirements 87. The project shall comply with the Alameda Countywide NPDES Permit #CA50029831, a copy of which is available at the City offices. 88. The following requirements shall be incorporated into the project: a) The project developer shall submit a final grading and drainage plan prepared by a licensed civil engineer depicting all final grades and on-site drainage control measures including bio-swales. Irrigated bio-swales shall be designed to the satisfaction of the City Engineer to optimize the amount of the storm water running off the paved surface that enters the bio-swale at its most upstream end. This plan shall be subject to the review and approval of the City Engineer prior to the issuance of any building permits. 12