Agmt18 Stantec Consulting Services, Inc.

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REV: 11-15-2022 JB Remodel the construction health risk assessment (HRA). Due to the additional emissions as well as the off-site location of the proposed pipeline, another HRA would need to be prepared to accurately account for the risk posed to nearby sensitive receptors. The Air Quality and Greenhouse Gas sections of the CEQA document will be updated to reflect the changes in methodology and results of the analysis. Energy: Consultant will determine potential energy use of the Project and the potential increases associated with the implementation of the Project, consistent with modeling conducted for air quality and greenhouse gas emissions. The City’s General Plan and Climate Action Plan will be important to inform the analysis of whether the Project results in wasteful or inefficient use of energy. Noise: Using the Applicant-provided and City updated Project Description dated November 2, 2022 and transportation data, Consultant will develop a noise analysis that will evaluate the Project’s impacts from noise. Major noise sources in the Project area are related to roadways, such as Arguello Street and El Camino Real, Caltrain rail line, existing single-family homes, existing commercial buildings, and activities associated with these uses. Noise increases associated with traffic as well as construction, stationary sources such as HVAC equipment, and general operational activities associated with the Project, need to be evaluated. The noise section of this environmental document will be developed using the following steps: Consultant will use Figure PS-12 “2030 Projected Noise Contours” in the Redwood City General Plan to determine the ambient noise levels experienced at the Project site and at the surrounding sensitive receptors. Sensitive receptors shall be identified through a review of aerial photography. Using the General Plan future ambient noise levels, initial Project information, and general site and exterior façade assumptions, establish initial recommendations to mitigate exterior noise to meet the requirements of the California Building Code for the multifamily housing building and the California Green Buildings Standards Code (CalGreen) for the office space. Using the Project specific traffic count data provided by the traffic assessment provided by the applicant and general industry standard practice, determine the potential effect the Project will have on local traffic counts and determine the impact to the neighboring community. Data will be evaluated for anticipated traffic noise during the construction of the Project and from operational traffic noise after the Project is functional. (to be provided by the applicant) Quantify the fixed-source operational noise generated by the Project to determine potential noise impacts associated with the Project and will identify potential measures to address these impacts in accordance with all Municipal Code and General Plan requirements. Both fixed noise sources, such mechanical equipment, and variable noise sources, such as playground activity, will be considered in the analysis. ATTY/AGR.2022 - Amend No. 2/Stantect Consulting Services, Inc. (Page 5 of 9)