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Grading /Urban Stormwater Runoff The existing site grades will be largely retained with the proposed project grading limited to the minimum grading for the driveway entrance, house and driveways, and a reasonably sized private yard area. The building sites will be designed in conformance to the requirements of the National Pollutant Discharge Elimination System (NPDES) of the Clean Water Act: structures and paved areas will be designed to drain to bio- filter areas, swales, or comparable measures to pretreat and then dissipate the stormwater runoff. Existing Trees A total of 67 existing trees may be impacted by the construction of the subdivision improvements and building sites. The trees in these areas are required to be mapped with the project- specific tree analyses. Removal of a Heritage /None Heritage size tree will be mitigated with the planting of new native specimen trees in five designated replacement areas on the site. All replacement trees will be watered and maintained by the property owners for three years after planting. Construction Hours All construction activities are limited to the hours of 7:00 a.m. to 5:00 p.m., Monday through Friday with no construction allowed on State and Federal Holidays. A construction traffic management plan shall be submitted before the first construction phase to coordinate construction traffic with Foothill High School traffic. PUBLIC COMMENT Public notices were sent to all property owners within a 1,000 -foot radius of the project site. As of the writing of this staff report, staff has not received any verbal or written comments from the public. All verbal /written comments pertaining to this proposal will be forwarded to the Planning Commission. ENVIRONMENTAL ASSESSMENT Environmental Review The environmental review for the proposed project is covered by an updated Initial Study /Mitigated Negative Declaration (IS /MND) addressing the modification of the creek/drainage channel and the tree removal resulting from this modification and from the realigned entrance driveway. The updated IS /MND includes the analyses that were conducted for the previous IS /MND and the response to the comments of the outside agencies. The consultants' reports were peer reviewed by LSA Associates and resulted in new information being added to the updated IS /MND. The cumulative analysis for the Yee property focused on the following species and issues: Alameda Whipsnake, California Red Legged Frog, California Tiger Salamander, Callippe Silverspot Butterfly, Nesting Birds, Roosting Bats, San Francisco Dusky- Footed Woodrat, and Trees. The analyses determined that the site is not habitat area for some of these species and, where the site could be habitat, identified a combination of mitigation measures were such as pre- construction surveys, protection fencing, and mitigation plans that are conditioned to be implemented with the construction of the project. Page 11 of 16