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freshly crushed on site to a size range of 1.5 inches minus. This material will be placed over the EPDM <br />liner to an approximate depth of 24 feet. The water movement through the waste rock will reduce the <br />zinc concentration in the water. At the bottom of the freshly cut waste rock, 3 perforated 8" diameter <br />DR -8 HDPE gathering pipes will collect water the mine water and deliver it to the designated mine water <br />pond. <br />In the event that the gathering pipes at the bottom of the leach field cannot handle the amount of flow, <br />an emergency spillway is located in the lower corner of the leach field. Excess water will enter a ditch <br />that is approximately 2 feet wide and approximately 8 inches deep. See Map G -10 for the exact location <br />of the spillway. <br />The EPDM Product Data Sheet is shown below: <br />PA <br />