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DocuSign Envelope ID: 2D970A62 -10C1- 4949 - 9224- E9F2ADB7D568 <br />If shovel test transects parallel the edge of the Area of Potential Effects (APE), the <br />transect nearest the edge of the APE should be no further than half a standard shovel test <br />interval as defined for the project from the edge of the APE. For example, if the shovel <br />test interval being used for a particular project is 25 m, the transects nearest the edges of <br />the APE should be no further than 12.5 m from the edge of the APE. If the APE is 60 m <br />wide and shovel tests are being excavated at 25 -m intervals, there should be three shovel <br />test transects, and the transects nearest the edges of the APE would be 5 m from the edge <br />of the APE. If shovel tests were excavated on only two transects, the distance from the <br />transects to the edge of the APE would be 17.5 m, which is greater than half of a standard <br />shovel test interval as defined for the project, and not deemed adequate coverage for a <br />high probability area. <br />Radial shovel tests excavated to define site boundaries should be placed at a reduced <br />interval no greater than half that of the standard interval (e.g., if the standard interval is 30 <br />m, the radial shovel test interval should be no greater than 15 m). At least two negative <br />shovel test should be excavated in each direction along site margins to determine the <br />extent of the site. Internal radial shovel tests or close - interval shovel tests may be <br />appropriate on some sites, for example to better delineate areas of artifact concentrations, <br />to further investigate soil conditions, and /or to better assess site significance. <br />Examples of Shovel Test Transect Placements (Across 60 -Meter Wide Survey Corridor) <br />WI lW <br />I I <br />15m 25m 25m Si,I <br />I I <br />APE = 60 m wide <br />Adequate Coverage (recommended) <br />Three Shovel Test Transects Spaced 25 m <br />Apart on 60 -m Wide Corridor, with Shovel <br />Tests Excavated at 25 -m Intervals. <br />SL u <br />Q1 1 n 1 c <br />w <br />Q0 <br />I I <br />1 30m 30m <br />1 1 <br />APE = 60 m wide <br />Not Adequate Coverage <br />One Shovel Test Transect on 60 -m Wide Corridor, <br />Regardless of Shovel Test Interval on Transect. <br />I< <br />I I <br />15m 30m 15m <br />I 1 <br />I <br />APE = 60 m wide <br />Adequate Coverage (minimum) <br />Two Shovel Test Transects Spaced 30 m <br />Apart on 60 -m Wide Corridor, with Shovel <br />Tests Excavated at 30 -m Intervals. <br />o. "wide 17. <br />Not Adequate Coverage <br />Two Shovel Test Transects Spaced 25 m Apart <br />on 60 -m Wide Corridor, with Shovel Tests <br />Excavated at 25 -m Intervals. <br />North Carolina Oce of State Archaeology — Archaeological Investigation Standard and Guidelines December 2017) Page 11 <br />