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Groundwater monitoring sites have included monitoring wells, MW-8, 10, 16, 23, <br />65, and NW. These wells specifically been used to monitor water levels and <br />quality in the Jack O'Lantern and Red Arrow Coal Seams. Water levels will be <br />measured in all active monitoring wells on asemi-annual basis. In addition, <br />water quality samples will be collected and analyzed on asemi-annual basis. In <br />the time period, 1996-2000, ongoing monitoring indicated that Wells MW-8 and <br />10 had caved and were on longer viable monitoring wells. In 2003, the inactive <br />North Dewatering Well was converted to a monitoring well (MW-NW) to provide <br />an additional monitoring point to track progressive mine flooding, water levels <br />and water quality. The North Well is located at the low point (elevation 5,855 of <br />the 1st North Sub-Mains. <br />In order to assure compliance under applicable provisions of Southfield's NPDES <br />permits for both mine and loadout area discharge points, EFCI will, during periods <br />of active flow, monitor discharge on a weekly basis, obtain grab samples for <br />settleable solids, and measure pH at the time of flow monitoring. If there is any <br />visible sheen on either the pond surface or downstream from the discharge point, <br />a grab sample for oil and grease will also be obtained. In addition, in order to <br />assure that sedimentation ponds are functioning properly, EFCI will obtain water <br />quality samples at discharge points on a monthly basis if discharge occurs and will <br />analyze samples for total suspended solids and total iron. <br />Both surface and groundwater quality samples will be collected, labeled and <br />transported to a qualified analytical laboratory for analyses. Proper sample <br />collection, preservation, handling, and storage methods will be utilized at all times <br />to preserve the integrity of the samples and ensure validity of analysis results. <br />Water quality samples will be analyzed for the specific parameters listed on Table <br />12, Water Quality Analysis Parameters, presented in Section 2.04.7, Hydrology <br />Description. All water <br />TR35 2.05.6-53~ Revised -September 2003 <br />