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Item No. 2 PC: 11-21-91 UP-92-6 Page 5 CONDITIONS OF APPROVAL Unless otherwise specified, all Conditions of Approval shall be complied with prior to the issuance of any Building Permits. This approval will expire 18 months from the date of approval unless (1) all Conditions of Approval have been compiled with, (2) all necessary building permits have been secured and remain in force, and (3) all necessary permits from other agencies have been secured and remain in force. Those Conditions followed by a section number or other statutory requirement are based on Ordinance requirements. Ordinance requirements cannot be modified. 1. DEVELOPMENT SERVICES DIVISION: a. The maximum exterior noise level entering the care home shall be 60 db Ldn at three feet from any of the building's exterior walls (Section No. 9-3800(e)). b. An acoustical study shall be prepared and shall contain the following (Section No. 9- 3801): (1) A brief description of the project, including a scale map with an illustration of the topographical relationship between the noise sources and the proposed project. The map shall also show lines of equal noise level in five db-Ldn steps, extending down to Ldn equals 60. (2) Identification of noise sources, both near and far, and their characteristics, as follows: (A) Average daily level of activity (Le,, traffic volume, flights per day). (8) Distribution of activity over day and night, days of the week, and season. (C) Composition of noise sources, frequency (1/3 octave band), and any unusual characteristics. (3) Predicted noise levels considering present land usage. The study should Ste+..:ia11 rha c3^-fisting al m�.'- r.t i's E) nv;r 2i i—,:.r,,, .iv L-=g, _y L'n, _0, _,-70, a, ,t Ldn. It should be representative of the existing "norm=al' noise environment. Discussion of the similarity or dissimilarity during the study period with that during other times of the year should be included. (4) Predicted future noise environment and the basis for the prediction. Contours or . f , 711-i t d h7r-,c!,-,dad n�.r + F I dnl alyd peri cc , er •,R �eJels .��.�i:��. ..'� (Gd....n ,�7 � _ �� ... u SL'r.. iT`:.. 52 OJ project.