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Appendix E (Initial Study/Part 2) Page 9 Noise is also regulated in San Leandro through the noise ordinance, which can consider the level, intensity, character, and duration of the noise as well as the time and place of the noise in determining whether the ordinance has been violated. Construction activities would intermittently and temporarily generate noise levels above existing ambient levels in the pmject vicinity. This would mostly affect the residents to the east and businesses in the immediate vicinity. This is a potentially sign cant impact. Mitigation: To reduce the construction noise effects, the City shall require construction contractors to limit noisy construction activities to the least noise-sensitive times of the day and week (e.g., 7:00 a.m. to 6:00 p.m., Monday through Friday). Implementation of this mitigation measure would bring the impact to a less than sign cant level. Stationary mechanical equipment associated with the new apartment building could increase noise levels in the project vicinity. Specifically, this could affect existing residents to the east and proposed on-site residents. Stationary mechanical equipment would include such items as heating/ventilation and air conditioning (HVAC) equipment. This could be a substantial source of noise depending on distance and inclusion of noise-reducing features. This is a potentially significant impact. Mitigation: To ensure that acceptable operational noise levels are maintained in the project vicinity and noise conflicts between the project and existing nearby uses aze avoided, the following measures should be implemented: Noise should be considered in the design and location of all stationary mechanical equipment and exterior vents (e.g., equipment and vents should face away from sensitive noise receptors, vent covers should be baffled, if necessary, etc.). Implementation of this mitigation measure would result in a less than significant impact. Ambient noise levels at the project site are in the range of 78.5 DNL which is considered "normally unacceptable" under the General Plan for residential land uses. This is a potentially sign cant impact. Mitigation: The developer shall be required to construct residential units in compliance with Title 24 standards. This may include the use of different ventilation systems and/or types of windows. Prior to occupancy, the applicant shall prove (through testing) that an indoor noise level of 45 dBA can be met in all residential units. Implementation of this mitigation measure would result in a less than significant impact. - 7. The construction of residential uses on-site will include the placement of lighting standards throughout the property. New forms of light and glaze associated with on-site uses will also include interior nighttime lighting of the residences. While the proposed change in land use would likely result in a moderate increase in the amount of glaze produced on-site during the evening hours, the additional light and glare would not be substantial given current ABHOW Senior Housing - [S -Part 2