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ANDERSEN ANDRE CONSULTING ENGINEERS, INC. <br />Geotechnical Engineering <br />Construction Materials Testing <br />Environmental Consulting <br />Indian River County <br />Solid Waste Disposal District <br />1325 74" Avenue SW <br />Vero Beach, FL 32968 <br />Attention: Mr. Himanshu H. Mehta, P.E. <br />Managing Director <br />PROPOSAL FOR SUBSURFACE SOIL EXPLORATION AND <br />GEOTECHNICAL ENGINEERING CONSULTING <br />INDIAN RIVER COUNTY LANDFILL IMPROVEMENTS <br />PROPOSED HOUSEHOLD HAZARDOUS WASTE FACILITY <br />INDIAN RIVER COUNTY, FLORIDA <br />AACE Proposal No. P20-1772 <br />(November 2, 2020) <br />December 17, 2020 (Rev2) <br />As requested, Andersen Andre Consulting Engineers, Inc. (RACE) is pleased to present this proposal <br />for preparing a subsurface exploration and geotechnical engineering evaluation for the above referenced <br />project. The purpose of the exploration is to obtain general subsurface soil information so that <br />recommendations can be provided for site preparation procedures, foundation design, and other <br />geotechnical aspects of the proposed development project. Additionally, as requested, pre -construction <br />materials testing services will be performed as part of a fill stockpiling process. <br />PROJECT UNDERSTANDING <br />Based on our review of the forwarded project information prepared by Kimley-Horn, we understand <br />that it is proposed to construct a single -story ±29,000SF prefabricated metal building ("Household <br />Hazardous Waste Facility") with a column spacing of about 75'x40', maximum column loads of 45 kips <br />(gravity) and 60 kips (uplift), and maximum wall loads of 1 KLF. <br />Further, as part of a pre -construction fill selection process, we understand that the County is proposing <br />to stockpile suitable fill materials as they are being hauled to the landfill from various construction sites <br />around the county. As part of that process, AACE is being requested to periodically visit the landfill and <br />inspect/sample ±160CY stockpiles on an estimated 22 occasions for the purpose of rendering an <br />opinion relative to the suitability of each stockpile for use as either roadway construction, landscape fill('). <br />material, or mass site and pad fill for the new facility. <br />Note (1): With respect to landscape fill, AACE will simply provide information relative to organic content and percent fines <br />of the materials; no nutrient testing will be performed. <br />GEOTECHNICAL FIELD EXPLORATION PROGRAM <br />Based on our understanding of the project, and our experience with subsurface conditions in the site <br />vicinity, and on the request of Kimley-Horn, we propose to perform eight (8) Standard Penetration Test <br />(SPT) borings (ASTM D1586) to depths of 30 feet below the existing ground surface. In addition, as <br />requested, we proposed to complete two (2) Double Ring Infiltrometer tests (ASTM D3385) and two <br />(2) 6 -ft deep in-situ borehole permeability tests. <br />834 SW Swan Avenue, Port St. Lucie, Florida 34983 Ph: 772-807-9191 Fx: 772-807-9192 www.aaceinc.com <br />