3_Exhibits A & C-G - Laserfiche WebLink

Bringhurst LLC at 990 Sycamore Road Initial Study and Negative Declaration f) For a project within the vicinity of a private airstrip, would the project expose people residing or working in the project area to excessive noise levels? DISCUSSION a) For single-family housing projects, the City's General Plan generally requires backyard areas not exceed 60 dBA Ldn and indoor noise levels not exceed 45 dBA Ldn. The subject site is located approximately 730 feet outside of the future (2025) 60 dBA Ldn noise contour along 1-680 and Sunol Boulevard as indicated in the 2005 - 2025 Pleasanton General Plan. Therefore, the noise level at the project site is not expected to exceed the General Plan exterior noise standard. Standard residential construction techniques result in a 15-20 dBA Ldn reduction of outside noise. Since the outdoor noise levels at the subject site would be less than 60 dBA Ldn, the interior noise standard of 45 dBA Lan would be met. Therefore, the impact would be less than significant. b) Construction activities could contribute to short-term increases in vibration due to construction equipment, earthmoving, and vertical construction activities. No excessive vibration is anticipated during operation of the residential project. Therefore, the impact would be a less than significant. c,d) The development of the project would generate added noise, such as vehicle travel and landscape maintenance activities. However, noise levels are not expected to change substantially from those currently experienced in the area because overall activity levels at the site would be modest. Short-term construction noise would be generated at the project site. Conditions of approval for the project would limit construction hours to 8:00 a.m. to 5:00 p.m., Monday through Friday, with no work Saturdays, Sundays or holidays. The Director of Community Development may approve earlier construction "start times" or later "stop times" only for specific construction activities (e.g., concrete pouring) if it can be demonstrated that the expanded construction hours are necessary (e.g., the concrete foundations need to be poured early due to weather conditions). Construction equipment would be required to meet Department of Motor Vehicles (DMV) noise standards and be equipped with muffling devices. As a result, these items would be less than significant. e,f) The project site is approximately five miles from the Livermore Municipal Airport, outside of the airport land use plan area, and not within the vicinity of a private airstrip. Therefore, this would be categorized as no impact. 36 tudies found that the proposed development would result in slight increase in surface water flow into Sycamore Creek, but the increase is not considered to be significant and would not result in substantial erosion or siltation on- or 31 event landslides, lateral spreading, subsidence, liquefaction and collapse on the project site. The State of California provides 24 ical significance specifically designated by official action; 5.A stand of trees, the nature of which makes each dependent upon the other for survival or the area's natural beauty. 20 ive by having the additional two parcels. Excerpt Planning Commission Minutes, July 11, 2018 Page 9 of 11 , 2018 Page 3 of 11 Way, existing lots range from 15,033 sq. ft. (5769 Hanifen Way)to 20,313 sq. ft. (1008 Sycamore Creek Way). P18-0075, 990 Sycamore Road Planning Commission 11of16 'Y a 0421 0 0 �I ,�� r •u"' - 36. ,`a yy�� n2+a /'�. oM 'le' k� W, k 3S 94 '@ g 'via R T3 1:5,300 0 0.05 0.1 mi PUD-89-06-08M, Gabriela Marks, 4210 Rosewood Drive Planning Division _ January 7 2020 `( �� ""�� 0 330 660 Feet I Y I , I I