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photo of the pond and a close-up of the north berm. Figure 3 is a plan view map <br /> of the pond. <br /> The pond is a 26 acre-foot, sub-grade pond that was constructed using standard <br /> construction methods with an excavator and haul trucks. The pond is generally <br /> rectangular with a footprint area of 76,480 square feet or 1.76 acres. Excavation <br /> began on September 14, 1995 and was completed on October 18, 1995. <br /> The pond is lined with a 40-mil High-Density Polyethylene (HDPE) liner that is <br /> anchored into the pond berms. The inlet to the pond consists of a concrete <br /> flume structure with two 16 inch HDPE conveyance pipes that enter the pond. <br /> The pond outlet consists of a single 16 inch HDPE conveyance pipe that <br /> terminates into a concrete outlet box. <br /> As-built drawings and documentation for construction of this pond were copied to <br /> • the DMG (Mr. Allen Sorenson) in a fetter from the Titan Environmental <br /> Corporation (TEC) to Ms. Anne Beierle dated December 6, 1995. On December <br /> 18, 1995, the certification document prepared and sealed by the Professional <br /> Engineer who designed Pond 1.2 and provided construction oversight was <br /> submitted to the DMG by Henderson (Ms. Anne Beierle) as required for an <br /> Environmental Protection Facility (EPF) by Rule 6.4.19 (10)(a). Those drawings <br /> and documentation and the required final certification on file at DMG are <br /> incorporated into this TR by reference and serve to demonstrate that Pond 1.2 <br /> provides adequate protection to the environment from the stable, alkaline, non- <br /> hazardous HDS proposed for storage therein. <br /> 2.3 Flood Management Plan <br /> As noted in Appendix A. floe+ and storm water management is a principal <br /> concern to the DMG. In March 1999, Henderson commissioned W.W. Wheeler <br /> JAPE 5 <br /> J"23.1999 <br /> TR Ox <br />