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<br />P:\Projects\0106.071 2025 Resident\J-REPORTS\VLF2 P3 Stage B.1 <br />RoC Page 19 <br />alignment. The adjusted alignment was not considered a deviation; however, <br />an 8-inch diameter perforated CPE collection pipe and nine of the 4-inch <br />diameter perforated pipe ends from Stage A could not be located. Upon review with <br />Foresight West survey, it was determined that the capped ends of the 8 inch and 4-inch <br />CPe pipes were approximately 8 feet to the west of the Stage A Stage B connection, <br />under the existing Drain Cover Fill and ore material. Due to the safety concerns of <br />excavating near the toe of the ore, 4-inch CPe pipes were not placed in this area. <br /> <br /> NewFields reviewed the area using the IFC design and confirmed that the 8-inch, 60-foot <br />CPe pipe extension could be safely removed. The grading in the area where the 8-inch <br />CPe pipe was removed is generally steeper than four-foot horizontal to one-foot vertical <br />providing sufficient drainage. The 4-inch diameter CPe collection pipe designed to flow <br />into the removed 8-inch CPe pipe was re-routed to the 24-inch diameter CPe collection <br />pipe to the north. The remaining 4-inch CPe pipe specified to connect to Stage A CPe <br />piping were rerouted to adjacent larger collection pipes. The adjusted High Volume <br />Collection System design drawing is provided in Appendix L. <br /> <br /> The drain cover fill material, composed of ore crushed on-site, was blended with lime <br />during the production process.NewFields produced a letter approving the mixing of lime <br />into the DCFO. The letter is provided in Appendix L. <br /> <br />5. ENGINEER’S OPINION <br />Based on the construction activities observed, testing performed, and inspections completed, <br />NewFields certifies that the project was constructed in general accordance with the approved IFC <br />Drawings and Technical Specifications. <br />