KPFF INC 12/16/2014 - Laserfiche WebLink

Deliverables • Refer to Task 24.16 12.18 — Hazardous Materials Screening Landau Associates shall conduct a screening-level assessment of the Phase 1 project site, which consists of the western portion of Grand Avenue Park, which will be the eastern terminus of the bridge, and the western terminus of the bridge, which consists of Port property west of West Marine View Drive, for the potential presence of contamination. The screening-level assessment for the project site will include the following components: • Reviewing available aerial photographs to assess past uses of the project site and adjacent properties from the present back to their first developed use, or back to 1940, whichever is earlier. • Reviewing listings from a subcontracted database service (Environmental Data Resources, Inc.) of confirmed and suspected contaminated sites within a 1-mile radius of the project site abstracted from EPA, tribal, and Ecology environmental databases. • Reviewing reports documenting previous environmental investigations completed at sites adjacent to the project site from Landau Associated project files, as appropriate, and/ or if provided by the City and/or WSDOT. • Conducting a site reconnaissance of the project site to visually and physically observe current land use activities and environmental conditions. • Observing the soil and groundwater conditions encountered during the drilling of exploratory geotechnical borings (to be completed by consultant team member HWA) for the project. Landau Associates staff will assess the soil and groundwater encountered for evidence of contamination by field-screening using a photoionization detector (PID) and by visual inspection. • Evaluating the laboratory analytical results for selected soil and groundwater samples collected during the drilling of the exploratory geotechnical borings, as warranted based on the conditions encountered. Landau Associates shall request and collect information from the Washington State Department of Ecology (Ecology) to further evaluate the sites of potential hazardous and problem waste concerns for the project that are identified in the regulatory database search or site reconnaissance. The task will include: • Visiting Ecology's Northwestern Regional office in Bellevue, Washington to review documents available from the agency files and to request copies of relevant information related to environmental conditions at the sites. • Reviewing the available documents/information. The data collected will be summarized into a technical memorandum (refer to Task 24.17). The memorandum will include information necessary to complete the Hazardous and Problem Waste section of the WSDOT ECS form. Assumptions • The pedestrian bridge phase of the project will be included in the technical memorandum but does not require any additional analysis. • No property acquisition is assumed. • A Hazardous Materials Report to address Hazardous and Problem Waste may be required KPFF Consulting Engineer November 10, 2014 Grand Avenue Park Utility Bridge, Phase 1A Page 39 of 55