HWA Geoscience Inc 4/3/2017 - Laserfiche WebLink

EXHIBIT A SCOPE OF WORK City of Everett proposes to expand the existing Evergreen Library located at 9512 Evergreen Way in Everett, Washington. The expansion will increase the size of the existing 8,595 square foot library by 5,552 square feet. The expansion will include extending the existing one story library structure into the lawn covered area to the west and the landscaped area to the east,as well as,expanding the South parking area by demolishing the existing duplex to the southwest property corner. The U.S.G.S. geologic map for the local area indicates that the project site is underlain by glacial till soils. The City of Everett requires geotechnical recommendations to support the design of the proposed addition and associated parking lot. HWA Geoscience,Inc.will review existing readily-available geotechnical and geologic information in the project area. This will include a review of online databases and geologic maps. • Plan Field Exploration Program: HWA shall plan an appropriate field exploration program HWA shall coordinate with local drillers to determine the best drilling equipment for each exploration,given the site constraints and exploration objectives. • Generate Field Exploration Figure:HWA shall generate a field exploration figure that shows the location of our proposed field explorations. This figure will be used to convey critical information to the city for approval of our explorations. • Conduct Utility Locates: Prior to conducting our field explorations HWA will call for utility locates. In addition,HWA will also retain a private utility locating service to clear the proposed exploration locations on private property and coordinate with the owner's representative regarding utility layout. • Conduct Subsurface Explorations: Upon approval, HWA shall conduct the proposed field exploration program,which includes one day of hand explorations and dynamic cone penetration(DCP)tests. The hand explorations and DCP tests will be conducted within the footprint of the proposed additions and within the limits of the proposed parking lot. Hand explorations will be excavated to depth ranging from 3 to 10 feet below the ground surface,depending on the soil conditions encountered. • Generate Exploration Logs and Assign Laboratory Testing: HWA shall prepare summary boring logs and perform laboratory testing to evaluate relevant physical properties of the site soils. Laboratory testing will include moisture contents and grain-size distributions. All laboratory testing will be performed in general accordance with the corresponding ASTM procedures. • Complete Geotechnical Engineering Assessment: HWA will complete geotechnical analysis to assess the geotechnical conditions of the site and identify any geotechnical issues that will need to be addressed during design. This assessment will include foundation bearing capacity, subsurface drainage,pavement design • Geotechnical Engineering Report: HWA will generate a geotechnical engineering report that will contain the results of the geotechnical engineering investigation,including description of surface and subsurface conditions; a site plan showing exploration locations and other pertinent features;summary exploration logs;and laboratory test results. The report will provide a narrative and geotechnical recommendations for each of the above described geotechnical aspects of the project. • Project Coordination Meetings: HWA will attend up to one project coordination meeting at the City of Everett offices. This meeting will be meant to convey the geotechnical considerations of the site to the City and possible design team. • Final Geotechnical Engineering Report: Upon receiving review comments from the City and the design team,HWA will finalize and stamp our geotechnical engineering report. Page 12 (Form Approved by City Attorney's Office January 7,2010,updated June 15,2014)