ORD 2114 - Laserfiche WebLink

a) Source control, site design measures, and design and implementation of stormwater treatment measures are required when commercial, industrial or residential development creates and/or replaces 10,000 square feet or more of impervious surface, including roof area, streets and sidewalk. b) Hydro-modification standards are required when a new development or redevelopment project creates and replaces total impervious area of one acre or more. c) Compliance with a Diazinon pollutant reduction plan (Pesticide Plan) to reduce or substitute pesticide use with less toxic alternatives. d) Compliance with a Copper Pollutant Reduction Plan and a Mercury Pollutant Reduction Plan. 2. 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 redesigned as needed to the satisfaction of the City Engineer to optimize the amount of the stormwater running off from 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. b) In addition to natural controls, the project developer may be required to install a structural control, such as an oil/water separator, sand filter, or approved equal on- site to intercept and pre-treat stormwater prior to reaching the storm drain. The design, locations, and a schedule for maintaining the control device shall be submitted to the City Engineer/Chief Building Official for review and approval prior to issuance of building permits. The structural control shall be cleaned at least twice a year once immediately prior to October 15 and once in January. c) Building/Structures shall be designed to minimize the occurrence and entry of pests into buildings, thus minimizing the need for pesticides, as determined by the Chief Building Official prior to the issuance of a building permit. d) The project's landscape and irrigation plans shall be designed to: 1) minimize the use of fertilizers and pesticides that can contribute to stormwater pollution; and 2) promote surface infiltration. Prior to the installation of project landscaping and irrigation, the project landscape architect shall submit a landscaping and irrigation plan to the City Engineer for review and approval and submit written verification stating the project incorporates the following: i. Plants tolerant of saturated soil conditions and prolonged exposure to water in areas that provide detention of water. ii. Plants and soil amendments appropriate to site specific characteristics such as topography and climate. iii. Landscaping and irrigation consistent with Bay-Friendly Landscaping. 33