SAPPHOS ENVIRONMENTAL 2 - Laserfiche WebLink

Home Browse Search

s 523 Series), and consultation with the Native American Heritage Commission. The cultural resources technical report will be evaluated based upon relevant cultural / historical data and guidelines and will conform to all CEQA standards. Geological / Soil Study Leighton Consulting, Inc. has been retained to evaluate and prepare all .geological and soil technical data related to projects within the City. The geotechnical assessment must be performed in general accordance with the guidelines set forth by the California Geological Survey (CGS) in Notes 46 (Guidelines for Geologic/Seismic Considerations in Environmental Impact Reports, for preparation of Environmental Impact Reports and with CEQA guidelines. The California Geological Survey Note 46 includes a preliminary assessment of the seismic and geologic hazards that might affect a site and any proposed development. The assessment will include a review of available geotechnical reports and photographs pertinent to the site and geologic reconnaissance of the site. From this data and review, general geologic maps of the site conditions and a report to providing a general summary of the geologic conditions at the site pertinent to the proposed development will be prepared. The summary report will address the following: • Description of the site, proposed development, and general site geology; • Geologic mapping of the site based on regional map. Based on generalized data, the potential for the presence of expansive soils will be discussed; • Identification of potential geologic and seismic hazards including compressible soils, strong ground shaking, soil liquefaction, lateral spreading, seismically induced settlement, landslide and faulting Hydrology / Water Quality Study or Water Assessment Study Diamond West, Inc. has been retained to complete any hydrology or water quality studies or reports pursuant to relevant environmental standards and those designated by City, regional, state and federal guidelines. Projects will also be analyzed against current and pending National Pollutant Discharge Elimination System (NPDES) permits relative to Standard Urban Stormwater Mitigation Plan (SUSMP) (MS4 permit) and construction activity issues. The hydrology / water quality study or water assessment study prepared by Diamond West, Inc. would include an assessment of flood control and drainage, water and wastewater, drainage and flood control, and hydrologic and hydraulic studies and analyses as required. These reports would utilize the technological resources to prepare simple design reports using the Orange County Rational method or large scale analysis utilizing the Orange County Unit Hydrograph methodology. All of the work will be prepared using a GIS-based approach to more clearly disseminate information to local agencies or to the public. Noise Study Terry A. Hayes and Associates (TAHA) has been retained to survey and analyze noise and vibration with regards to City projects. The studies prepared by TAHA will be in accordance with established City, state, and federal guidelines and requirements for noise and vibration levels. The assessment of noise will focus on the potential for the proposed project to result in exceedance of the standards for noise established in local ordinances, exposure to excessive ground -borne vibration, substantial permanent increase in ambient noise levels, substantial temporary increases in noise levels, or exposure of people residing or working in new structures to excessive noise from public or private airports. Ambient noise levels will be characterized in accordance with the Community Noise Compatibility Criteria established in the California Department of Health Guidelines for the Preparation and Content of Noise Elements of the General Plan. Modeling will be undertaken to assess anticipated noise levels in association with the proposed project. The location of the proposed project in relation to the nearest public and private airstrip will be established. Noise modeling will be undertaken in areas of the proposed project site that are located within 2 miles of a public or private airstrip to assess the exposure of people residing or working in proposed structures to aircraft noise. Traffic Study Katz Okitsu Associates (KOA) Corporation has been retained to analyze transportation and traffic in relation to City projects. The tasks conducted by KOA will be consistent with the study requirements per the City, state, and federal APRIL 1 1, 2008 SAPPH05 ENVIRONMENTAL, INC. MAQUALS\2008\Q 147 I -o03\SECTION 2\2A - SCOPE.DOC PAGE 2-7