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Ponds 2 and 3 were part of a closed -loop recycling system for water storage and use in the coal <br />processing plant. Pond 1 was a sediment pond for drainage off of the coal stockpiles. Ponds 1, <br />2, and 3 were reclaimed prior to the approval of RN -05. <br />The loadout ponds have been reclaimed. EFCI submitted an analysis of sediment loading from <br />the areas that drain to these ponds, and the Division found that this analysis is sufficient and <br />indicates that the sediment yield at the loadout for the post -mine condition is less than the pre - <br />mine condition. <br />All sedimentation ponds were designed utilizing standard engineering practices to retain the <br />runoff from a 10 -year, 24 -hour storm event. Pond design criteria can be found in Exhibit 19 of <br />the PAP. Ponds 4 and 5 were incised into the ground and constructed with primary and <br />emergency spillways. Ponds 4 and 5 are NPDES discharge points. <br />More information on the sediment ponds can be found in Section 2.05.3 of the PAP. <br />E. Acid - forming and Toxic - forming Spoil <br />No acid or toxic - forming materials have been identified as occurring within the mine or loadout <br />areas as a result of chemical analyses of soils, coal, roof and floor materials, or coal refuse. For <br />comprehensive information on the results of these tests, refer to Section 2.04.6, Section 2.04.9, <br />and Exhibit 9 of the PAP. <br />F. Impoundments <br />At the loadout, no impoundments currently exist. Other than sediment ponds, no impoundments <br />currently exist at the Southfield mine site. <br />G. Surface and Groundwater Monitoring <br />Currently, there are four groundwater monitoring "wells" in the Southfield hydrologic <br />monitoring plan: MW -16, MW -23, MW -65, and MW -NW. MW -NW was not constructed as <br />well per se; it is merely a casing used as a conduit to the mine workings. With one exception, <br />water levels are measured in the wells semi - annually, and water quality samples are collected <br />semi - annually for the parameters listed on page 2.04.7 -16 of the PAP. The exception is MW- <br />NW: due to an obstruction, this well has not recently been monitored as it was intended. This <br />issue is the subject of the pending violation CV- 2013 -002. <br />Monitoring sites MW -7A, MW -7B, MW -8, MW -10, and MW -22 were originally included in the <br />monitoring program. These wells have been intercepted by underground mining activities or <br />have caved and have been eliminated from the monitoring network. <br />For surface water, sampling requirements include discharges from four CDPS outfalls and <br />sampling of three creeks in the vicinity of the mine site. Two of the CDPS outfalls are at the <br />mine site (Ponds 4 and 5), and two are at the loadout (former Ponds L and L2). The creeks that <br />19 <br />