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. Section 780.21(b) Continued. <br />2. Reduction in the current number of ground water sites to be monitored. See Map <br />48, Mine Area Monitoring Stations, and Map 36, Kerr Tipple Area Postmining <br />Topography, for the locations of the ground water monitoring sites to remain in <br />the monitoring program. <br />Water quality information has been collected since the 1979/80-baseline period, <br />Kerr submits that further data collection from un-disturbed, non-impacted, or <br />peripheral areas are unwarranted. The majority of the disturbed area at the mine <br />site has been regraded and revegetated for at least two years, with only the <br />proposed permanent light-use roads and the surface facilities area remaining <br />unreclaimed (see the 1997 Annual Reclamation Report for details of the current <br />reclamationl. Since mining has ceased, pits have been backfilled, and the majority <br />of disturbance areas regraded and revegetated, Kerr proposes to reduce the <br />number of sites to be monitored. The current monitoring sites are shown on Map <br />23-2, Water Monitoring Sites, contained in Exhihit 42. Following is a list of <br />ground water wells proposed for elimination from the monitoring program. <br />1. Well 79-1 -This well is located at the north end of the 720 Pit near the <br />proposed site of spoil Well 99-1. Well 79-1 was installed in the Sudduth <br />Seam overburden to monitor potential impacts from mining. Mining in this <br />area was completed in 1983, so this well is no longer needed. <br />2. Well 79-2 -Well 79-2 was installed in the Sudduth Seam overburden at the <br />south end of the 720 Pit to monitor potential impacts from mining. Similar to <br />Well 79-1, this well is no longer needed. <br />3. Well 79-3 -This well, installed in the Sudduth Seam overburden and located <br />between the 720 Pit and Pit 1, has been monitored for water levels only. <br />4. Well 79-61 - WeH 79-61 was installed north of Pit 1 in the Sudduth Seam to <br />establish baseline/background data for the coal aquifer in the Kerr North area. <br />This data was collected in support of future mining which will now not occur. <br />5. AP-3 -This well, located at the southwest corner of the loadout, has been <br />monitored for water levels only. <br />TR-19 780-tOBb Revised August 1999 <br />