MARK THOMAS & COMPANY, INC. (6) - Laserfiche WebLink

Home Browse Search

SCOPE OF SERVICES CITY OFSANTAANA SANTA ANA BOULEVARD GRADE SEPARATION �r MARKTHOMAS Traffic analysis will be prepared to confirm paint surveys. These services, if needed, can be intersection lane configurations and turn pockets provided at an additional cost. are adequately sized to support future traffic with 6.3.3 Air Quality the project. Off-ramp queues will also be evaluated to confirm 1-5 mainline traffic would not The Project is located within Orange County region be affected by potential spillback. of the South Coast Air Basin (SCAB). The SCAB It is assumed that no more than two rounds of region where the project is located is within a comments will be received on the draft study from nonattainment area for the federal 8-hour ozone the City and Caltrans. (03), lead, and particulate matter less than 2.5 micrometers in diameter (PM2,0 standards and 6.3.2 Phase I ESA within an attainment/maintenance area for the A Project-wide Phase 1 Environmental Site federal carbon monoxide (CO) and particulate Assessment (ESA) will be prepared for the project matter less than 10 micrometers in diameter area. Additionally, we will review the Phase II work (PM14) standards. Therefore, the Project is subject prepared by others in the prior phase and provide to Transportation Conformity. A Supplemental Air input on what applies to the Project. Note that this Quality Report will be prepared to address the scope does not include parcel-specific ESAs for change in the Project design (reduction in number parcels to be acquired for the Project. of lanes, etc.), the updated traffic study that will be prepare, and the changes in air quality related The ESA will check for historical evidence of requirements. The Air Quality report will consist of potential site contamination for the Project study the following. area and will be performed in general accordance Regulatory Setting and Existing Conditions. with ASTM E1527-21 and Caltrans Standards, and Summarize the existing federal, state, and local air will consist of the following: quality regulatory environment as it affects the • Conducting a review of available existing proposed project, and describe the location of local, state, and federally maintained sensitive receptors in the project vicinity. Using databases of hazardous materials sites and data provided by the California Air Resources underground storage tank records Board (ARB) and the South Coast Air Quality generated by EDR, Inc. Management District (SCAQMD), the report will • Reviewing available historic aerial characterize existing air quality conditions in the photographs and topographic maps to help project area and explain how those conditions are identify prior land uses. affected by local climate and topography. • Performing a brief visual of the Project from Regional Conformity. Evaluate whether the project the public right-of-way to document existing meets regional transportation conformity conditions. requirements by determining whether it is included, • Identifying sites of recognized as currently defined, in the most recent Regional environmental conditions (REC) that may Transportation Plan/Sustainable Communities have significant potential impact on the Strategy (RTPISCS) and Federal Transportation Project construction and/or environment. Improvement Program (FTIP) prepared by the • Preparing a draft Phase I ESA report. Southern California Association of Governments • Responding to one set of review comments (SCAG). from the agency and providing a final report. Project-Level Conformity. Evaluate whether the project meets project-level transportation The scope of services specifically excludes a conformity requirements, which will also be used to Phase II investigation for hazardous materials, an support the CEQAINEPA analysis. evaluation for aerially deposited lead or other chemicals of concern, and asbestos or lead-based Localized Carbon Monoxide Hof Spot Analysis. Analyze the degree to which project-related traffic volumes have a