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33 <br />Orange County Trigon Project No 03G-00-016L) <br />Hillsborough Landfill Site 7uly 19, 2000 <br />REPORT OF GEOTECHNICAL EVALUATION <br />HILLSBOROUGH LANDFILL SITE <br />HILLSBOROIJGIi, NORTH CAROLINA <br />Trigon Project No 036-00-O1GD <br />1.0 SITE DESCRIPTION <br />The project site is located near the Fairview neighborhood in Hillsborough, North Cazolina. See <br />Site Location Map {Figure 1) included in Appendix A.. It is comprised of two tracts of land: a <br />wooded, 25.4-acre tract owned by the town of Hillsborough, and an abutting 41.75-acre parcel <br />owned by Orange County. The county's portion of the site is a mix of open and wooded areas, <br />including approximately 10 acres that was used as a refuse and debris landfill starting in the 1950's <br />until the early 1970's. <br />2.0 SCOPE OF INVESTIGATION <br />2.1 TII;LD 1;XPLORATION <br />The field exp]oration for this project consisted of forty-nine (49) soil test borings extending to <br />depths of 43 to 10.0 feet below existing grades at the approximate locations shown on the <br />Boring Location Diagram (Figure 2) included in Appendix B. Borings B-2 and B-17 were not <br />drilled due to their outlying location and difficult access in heavily wooded areas at the site. <br />The boring locations were established in the field by Trigon personnel using a preliminary site <br />plan provided by Orange County. The borings were positioned in the field in a general grid-like <br />pattern by estimating distances and right angles from existing site featrtres shown on the site plan <br />provided.. After completing the field work, the borings were located with global positioning <br />system (('iPS) instntments, referenced to a set coordinate system and plotted on the Boring <br />Location Diagram (see Appendix B). Brief descriptions of the field testing procedures and Test <br />Boring Records are included in Appendix C. <br />TRIGONENGINEERlNG CONSULTiIN7S. ING Page 1 <br />