PC 2002-46 - Laserfiche WebLink

(c) Install filter materials (such as sandbags, filter fabric, etc.) at the storm drain inlet nearest the downstream side of the project site in order to retain any debris or dirt flowing in the storm drain system. Maintain and/or replace filter materials to ensure effectiveness and to prevent street flooding. (d) Create a contained and covered area on the site for the storage of bags, cement, paints, oils, fertilizers, pesticides, or other materials used on the site that have the potential of being discharged into the storm drain system through being windblown or in the event of a material spill. (e) Never clean machinery, equipment, tools, brushes, or rinse containers into a street, gutter, or storm drain. (f) Ensure that concrete/gunite supply trucks or concrete/plaster operations do not discharge wash water into street, gutters, or storm drains. 139. Storm drainage swales, gutters, inlets, outfalls, and channels not within the area of a dedicated public street or public service easement approved by the City Engineer shall be privately maintained by the property owner. The developer shall install a structural control, such as an oil/water separator, sand filter, or approved equal on the site to intercept and pretreat storm water prior to reaching the storm drain. The design, locations, and a schedule for maintaining the separator shall be submitted to the City Engineer/Director of Building Inspection 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. The developer shall enter into a maintenance agreement for the oil/water separator prior to issuance of an occupancy permit for any portion of this development. The developer shall label all on- site storm drain inlets with the wording, "No Dumping -- Drains to Bay" using City-approved methods and materials. 140. The developer shall design an on-site stormwater pretreatment and collection system that includes, to the maximum extent feasible, on-site water pretreatment facilities, including bioswales, micro-detention areas, permeable pavement, etc. The final layout and design of these facilities shall be submitted for review with the review and approval of the Planning Director and City Engineer prior to the approval of the final map. The goal shall be to provide on-site pretreatment for a minimum of 85% of the project site. Bubbleup pretreatment shall be used for pretreating water from the house roof leaders and lot area drains and shall empty into the concave-shaped, turf planter strip. Additionally, the use of permeable paving in the cabana club parking area shall be used, if feasible. 141. The developer shall design and construct a storm drain system, (sized to include the entire drainage basin between the project and Stanley Boulevard) along the east side of Martin Avenue from Mohr Avenue to connect to the existing pipe stub-out located at the northern end of Martin Avenue. The developer shall negotiate with Kaiser to obtain an easement for the installation of the storm drain line and/or portions of a bioswale along the buffer area between Martin Avenue and the Kaiser/ Zone 7 property. The proposed design of these improvements shall be subject to the review and approval of the Planning Director and City Engineer. The Planning Commission Page 28 July 24, 2002