PC 2005-43 - Laserfiche WebLink

67. "t'he tollo wing req uircnienis 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 cell final grades and on-site drainage control nicasures including, bio- swales. Irrigated bio-swales shall be redesigned as needed to the satisfaction of the City Engineer to optimize the an~ouni o£ the storm water running off the paved surface that centers the bio-swale at its most upstream end. This plan shall be suhjeci to the review and approval of the City 1`?ngineer prior to U-1e issuance of any building pennits- b_ In addition to natural controls the project developer may be required to install a structural control, suclx as an oil/water separator, sand filter, or approved equal (in the parking lot) (on the site) to intercept and pretreat storm water prior to reaching the storm drain. The design, locations, axed a schedule for xr~ainiaining the separator shall be submitted to the City Engine=er/Director of Building h~spection for review and approval prior to issuance oi- building permits. The structural control shall be cleaned at least twice a year_ once inzn~ediately prior to October 15 and once in January. The project developer shall enter into a maintenance agreement for the oil/water separator. c- "l~he project developer shall submit sizing designs criteria to treat stormwater runoff at the tix~-xc of-plan submittal- d- [,andscaping shall he designed to minimize irrigation and runoff, promote surface infiltration where appropriate, and niinin~izc; the use o£ fertilizers and pesticides that can contribute to stoniiwaier pollution. i~ Structures shall be designed to discourage the occurrence and entry of pests into buildings. thus xnini.niizing the need for pesticides. iii Where feasible, landscaping shall be designed and operated to treat storxnwatar runofF. In areas that provide detention of water, plants that are tolerant of saturated soil conditions and prolonged exposure to water shall be speciF ed- Soil shall be axncnded as required_ iii Ylant materials selected shall be appropri etc to site specific characteri sties such as soil type, topography, climate, amount and timing of sunlight, prevailing winds, rainfall, air xrxovexnent, patterns of land use, ecolo~,ical con si sieney and plant interactions to ensure successful cstablishment- iv) Landscaping shall also comply with City of Pleasanton ordinat~ces and policies regarding water conservation- Trash areas., duxnpsters and recycling containers shall be enclosed and roofed to prevent water run-oxz to the area and rrmo£F £ronz the area and to contain litter and trash, so that it is not dispersed by the wind or runoff during waste removal- These areas shall not drain to the storm drain sy siexn, but to the. sanitary sewer systen~x and an area drain shall be installed in the enclo sux-e area, providing a structural control such as an oil/water separator or sand filter- No other area shall drain into the trash enclosure, a berxr~. shall be installe=d to prevent such drainage iF found necessary by the City engineer/Director of C3uilding Inspection- A sign 70