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b) Hydro-modification standards are required when a new development or redevelopment <br /> project creates and replaces total impervious area of one acre or more. <br /> c) The Permit requires a proactive Diazinon pollutant reduction plan (aka Pesticide Plan) to <br /> reduce or substitute pesticide use with less toxic alternatives. <br /> d) The Permit requires complying with the Copper Pollutant Reduction Plan and the Mercury <br /> Pollutant Reduction Plan. <br /> 130. The following requirements shall be incorporated into the project: <br /> a) The project developer shall submit a final grading and drainage plan prepared by a licensed <br /> civil engineer depicting all final grades and on-site drainage control measures including bio- <br /> swales. Irrigated bio-swales shall be redesigned as needed to the satisfaction of the City <br /> Engineer to optimize the amount of the stormwater running off the paved surface that <br /> enters the bio-swale at its most upstream end. This plan shall be subject to the review and <br /> approval of the City Engineer prior to the issuance of any building permits. <br /> b) The project developer shall submit sizing design criteria to treat stormwater runoff at the <br /> time of improvement plan submittal and an updated detailed copy of calculations with <br /> subsequent submittals. <br /> c) Landscaping shall be designed to minimize irrigation and runoff, promote surface infiltration <br /> where appropriate and acceptable to the project soils engineer, and minimize the use of <br /> fertilizers and pesticides that can contribute to stormwater pollution. <br /> • Structures shall be designed to prohibit the occurrence and entry of pests into <br /> buildings, thus minimizing the need for pesticides. <br /> • Where feasible, landscaping shall be designed and operated to treat stormwater runoff. <br /> In areas that provide detention of water, plants that are tolerant of saturated soil <br /> conditions and prolonged exposure to water shall be specified. Soil shall be amended <br /> as required. (See planting guideline by Alameda County Clean Water Program.) <br /> • Plant materials selected shall be appropriate to site specific characteristics such as soil <br /> type, topography, climate, amount and timing of sunlight, prevailing winds, rainfall, air <br /> movement, patterns of land use, ecological consistency, and plant interactions to <br /> ensure successful establishment. <br /> • Landscaping shall also comply with City of Pleasanton ordinances and policies <br /> regarding water conservation. <br /> d) Roof drains shall discharge and drain away from the building foundation. <br /> Construction Requirements <br /> The Construction General Permit's construction requirements include, but are not limited to, the following: <br /> Construction activities (including other land-disturbing activities) that disturb one acre or more (including <br /> smaller sites that are part of a larger common plan of development) are regulated under the NPDES <br /> stormwater program. Operators of regulated construction sites are required to develop and implement <br /> stormwater pollution prevention plans and to obtain a construction general permit (NOI) from the State <br /> Water Resources Control Board to discharge stormwater. <br /> http://www.waterboards.ca.govlwater issueslproarams/stormwater/docs/finalconstpermit.pdf <br /> Stormwater <br /> 131. The project developer shall submit a Stormwater Pollution Prevention Plan (SWPPP) for review <br /> by the City Engineer/Chief Building Official prior to issuance of building or engineering permits. A <br /> Page 21 <br />