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T -115 M 13 <br />that increased mine water inflow to Pond 2 was resulting in turbulence which <br />interfered with settling of suspended solids from process water, and possible scour and re- <br />suspension of sediments from the pond basin. EFCI solved the problem by <br />bypassing Pond 2 and routing gravity discharge directly from Pond 3 to discharge point 003. <br />Pond 2 became a closed system with the process plant and effluent water quality returned <br />to acceptable levels. <br />While discharge from Pond 3 flowwthrough the water treatment tanks, no chemicals are <br />utilized for water treatment, the water treatment system is not currently utilized, and <br />there are no plans for future water treatment. <br />Upon completion of mining, the water treatment tanks will =La salvaged or <br />demolished, any resulting debris W- e• disposed of in a designated area, and the <br />associated disturbed area W.x reclaimed in conjunction with reclamation of Pond 2. <br />Ponds, Impoundments and Diversions <br />The status of the ponds at the mine site and loadout have changed since closure of the <br />mine in 2000, and subsequent reclamation activities at both sites through 2014. <br />Pond 1, Pond 2 and Pond 3 at the mine site were reclaimed during backfilling and <br />regrading of the area during 2001 through 2003. The remaining ponds, Pond 4 and Pond 5, <br />located at the mine, are currently being considered to remain as permanent structures at <br />the request of the associated landowners. <br />At the loadout, Pond 1 and Pond 2 are sediment control structures. EFCI is scheduled to <br />reclaim both ponds prior to requesting final bond release of the loadout site. <br />There were formally five (5) ponds and one (1) stream diversion within the Southfield <br />mine area and two (2) ponds within the Southfield loadout area as shown by the Mine <br />Surface Facilities Map, (Map 18) and the Loadout Area Surface and Groundwater <br />Hydrology Map, (Map 13). respectively. All ponds were constructed by Dorchester prior to <br />EFCI's purchase of mining and loadout operations in early 1985. EFCI has <br />subsequently modified the two (2) ponds in the loadout area to improve their <br />effectiveness and bring them into compliance with applicable regulatory standards. <br />2.05.3 -44 ' Revised 8/1/14 RN -06 <br />