21 ATTACHMENT 6 AND 7 - Laserfiche WebLink

The proposed landscape plan shows that 68 street trees and approximately 38 front yard trees would be planted in the project. The proposed planting includes various species, such as marina, southern magnolia, purple -leaf plum, Bradford pear, live oak, valley oak, white alder, European hornbeam Leyland cypress, and Saratoga laurel. The proposed street trees would be 24 -inch box size and other trees would be either 24 -inch box or 15- gallon size. In the past, the Planning Commission and /or City Council have attempted to discourage tree loss in developments by adding an extra requirement to contribute the value of the removed trees to the City's Urban Forestry Fund. The Urban Forestry Fund is used to plant new trees in the City as well as to promote conservation and public education about urban forest. Staff normally tries to mitigate tree removal by requiring additional trees be planted on the site beyond what is normally required in production home de- velopments (i.e., street trees and other trees installed in the front yards). In some de- velopments, tree mitigation is required at a 6:1 ratio for each tree removed with a certain percentage of those trees being box - sized. The proposed landscape plan for both phases does not include any additional trees beyond what is typically required for a residential development. There is little room on each lot for additional tree planting. Staff has included a condition that requires the applicant to mitigate the removal of the heritage trees that are in fair and better than fair condition by making a payment to the Urban Forestry Fund. Also, should the applicant increase the size of some or all of the trees that are presently shown on the landscape plan, staff would support reducing the payment to the Urban Forestry Fund proportionately. Noise Assessment The City's General Plan requires new projects to meet acceptable exterior and interior noise level standards. For single - family residential development, private yard areas excluding front yards cannot exceed 60 day /night average decibels (dB Ldp) and indoor noise levels cannot exceed 45 dB Ldp. A noise assessment study was prepared by Illingworth & Rodkin, Inc. to analyze noise created primarily by activities from the fairgrounds. Ambient noise data in and around the project site were collected in November 2015. To ascertain noise generated by the fairgrounds during the Alameda County Fair, the consultant used data collected during the Alameda County Fair in 1998 for the adjoining Roselyn Estates development. As the activities during the fair have remained similar between 1998 and now (i.e., horse racing, bands and concerts, carnivals, fireworks, etc.), staff believes the previous data is still valid to use to assess existing noise conditions. PUD -99 Planning Commission 10