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(http://www.waterboards.ca.gov/water issues/proqrams/stormwater/construction.sht <br /> ml) <br /> A. Design Requirements <br /> 1. The Permit design requirements include, but are not limited to, the following: <br /> a) Source control, sight design measures, and design and implementation of <br /> stormwater treatment measures are required when commercial, industrial or <br /> residential development creates and replaces 10,000 square feet or more of <br /> impervious surface, including roof area, streets and sidewalk. <br /> b) The Permit requires a proactive Diazinon pollutant reduction plan (aka <br /> Pesticide Plan) to reduce or substitute pesticide use with less toxic <br /> alternatives. <br /> 2 The following requirements shall be incorporated into the project: <br /> a. The project developer shall submit a final grading and drainage plan <br /> prepared by a licensed civil engineer depicting all final grades and on-site <br /> drainage control measures including bio-swales. Irrigated bio-swales shall <br /> be redesigned as needed to the satisfaction of the City Engineer to optimize <br /> the amount of the stormwater running off the paved surface that enters the <br /> bio-swale at its most upstream end. This plan shall be subject to the review <br /> and approval of the City Engineer prior to the issuance of any building <br /> permits. <br /> b. Landscaping shall be designed to minimize irrigation and runoff, promote <br /> surface infiltration where appropriate and acceptable to the project soils <br /> engineer, and minimize the use of fertilizers and pesticides that can <br /> contribute to stormwater pollution. <br /> • Structures shall be designed to prohibit the occurrence and entry of <br /> pests into buildings, thus minimizing the need for pesticides. <br /> • Where feasible, landscaping shall be designed and operated to treat <br /> stormwater runoff. In areas that provide detention of water, plants that <br /> are tolerant of saturated soil conditions and prolonged exposure to water <br /> shall be specified. Soil shall be amended as required. (See planting <br /> guide line by Alameda County Clean Water Program.) <br /> • Plant materials selected shall be appropriate to site specific <br /> characteristics such as soil type, topography, climate, amount and timing <br /> of sunlight, prevailing winds, rainfall, air movement, patterns of land use, <br /> ecological consistency and plant interactions to ensure successful <br /> establishment. <br /> • Landscaping shall also comply with City of Pleasanton ordinances and <br /> policies regarding water conservation. <br />