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. 1999 Annual Hydrologic Report <br />Page 5 <br />Portals. Depth to water ranged from 56.5 feet below grade in the North Decline well to <br />artesian in the North Portal well. Monitoring of these wells will continue in accordance <br />with permit requirements. Depth to water data is presented on data page GE-1. <br />Quality information is presented on pages GE-6 through GE-9. <br />The Rollins Sandstone wells are numbered Rollins 1, 2, 3 & 4 on data page GE-1. <br />Rollins-1 is an underground well located in the North Portal and is under artesian <br />conditions. Rollins-2 is located at the unit train loadout. Rollins-3 is located at the north <br />decline. Rollins-4 is an underground well located in the South Portal. <br />Mine Water <br />The annual mine inflows study for this Year was taken the during of December 1999. <br />This study is being made a part of the AHR. The results of the study are given on data <br />pages MA-21 and 22 and MB-14. A summary of past conductivity and flows from the <br />monitoring locations are given on Tables M99-1 thru 3. Inflow monitoring locations are <br />shown on the 1997 Mine Inflows Map. At the North Portal the primary water sources <br />are the portal ramp underdrain represented by location 1 and sealed area inflows at <br />location 8. The primary flows at the South Portal are location 3; flow from the Second <br />West panel, location 33; 4 South Mains at Rapid Creek Mains and location 34; 2 South <br />Mains seals below 5 East Mains. <br />Consumptive Use <br />A monthly listing of domestic water usage is shown on data page CA-7. Meter 1 <br />supplies the buildings near the Roadside South entrance gate. Meter 2 supplies the <br />preparation plant and the Roadside South office and bathhouse. Meter 3 supplies the <br />Roadside North facilities but has not been hooked up since operations resumed. <br />Mine water is used underground for dust suppression in the mining process and on <br />roadways. Water usage underground is not measured but is being estimated. The <br />mine water is also used for process water in the preparation plant. The water circuit in <br />the plant is closed but leaves the plant as added moisture in the coal and refuse. <br />Water added to the coal during the mining and processing can be roughly calculated <br />from coal moisture levels measured at different stages in the process. The following <br />information was used to make calculations for this Year: <br />