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Page 13 <br />kimley-horn.com 2828 Colby Avenue, Suite 200 Everett, WA 98201 425-708-8275 <br />report will provide geotechnical recommendations for each of the proposed <br />improvements. <br />·Address Review Comments: HWA will address up to one (1) round of review comments <br />on the draft geotechnical report from the City and design team. <br />·Prepare a Final Geotechnical Engineering Report: HWA will finalize the geotechnical <br />report once review comments from the design team and the City t are received. <br />Geotechnical PS&E Coordination and Support <br />·Miscellaneous Geotechnical Assistance: HWA will provide up to 40 hours of <br />miscellaneous geotechnical assistance during the PS&E process. <br />Assumptions: <br />l Hazardous materials reporting to support the NEPA process will be completed by S&W. <br />l The environmental sampling of the geotechnical explorations proposed herein will only <br />be conducted to assess the environmental conditions of the areas sampled and for IDW <br />disposal. The environmental sampling will not be used to assess site environmental <br />conditions. <br />l HWA assumes that they will attend twenty-four (24) project coordination meetings in <br />addition to the kickoff meeting. <br />l All field explorations and supporting traffic control will be conducted between the hours <br />of 9AM and 3PM. <br />l All required rights-of-entry will be provided by the City. <br />l The borehole locations will be surveyed by S&F. <br />l No stormwater infiltration testing will be conducted as part of this project. <br />l Relatively disturbed subsurface soil samples will be collected from the borings using the <br />Standard Penetration Test (SPT) at an interval of 2.5 feet to a depth of 25 feet. Samples <br />will be taken at 5-foot intervals below a depth of 25 feet. <br />l The two (2) wells installed as part of this investigation will be maintained by HWA <br />throughout design and decommissioned by the contractor during construction. <br />l Groundwater level measurements will be completed over a period of twelve (12) months. <br />l The IDW waste profile disposal paperwork will be signed by a representative of the City <br />or property owner. Estimated HWA labor and subcontractor costs for IDW disposal are <br />for non-hazardous waste disposal. If analytical results indicate hazardous wastes are <br />present, IDW disposal may require disposal as a hazardous waste at a Subtitle C landfill, <br />which may incur additional labor and subcontracting costs. <br />l If contamination is identified in the borings, there is a 50% increase in fees for the HWA <br />material laboratory testing. In an attempt to reduce the cost of the HWA material testing <br />laboratory fees, HWA will wait to select which geotechnical soil samples to analyze until <br />all environmental laboratory analytical results have been received. <br />l Following delivery of the draft report, and if no contamination is identified in the areas <br />sampled, all geotechnical soil samples and leftover materials will be disposed of by <br />HWA. If contamination is identified in the areas sampled, HWA will return the soil <br />samples and leftover materials to the IDW drums for disposal. This could result in the <br />IDW drums needing to be stored onsite or at the City provided location for up to 120 <br />days. Long-term storage of soil samples or materials on behalf of City is not included.