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monitoring program. Five wells were added in May 1993. <br /> The wells at New Horizon I (GW-N1, GW-NIPI, GW-N3, GW-N4, GW- <br /> N5, GW-N6. GW-N8. GW-N9 and GW-Nll) were monitored since <br /> September of 1979. Monitor Well GW-NIO was measured for water levels <br /> since January of 1981. Three additional spoil wells (GW-N26. GW-N27 and <br /> GW-N28) and one replacement coal well (GW-N4R) were installed in <br /> August and September, 1987. Measurements for static water levels began at <br /> these wells immediately after they were completed and developed. <br /> In order to obtain specific baseline water level information at New Horizon <br /> 2, a total of 22 monitor wells were drilled and completed. In June of 1986, <br /> 16 monitor wells (GW-N13, GW-N14, GW-N15, GW-N16, GW-Nl6Pl, <br /> GW-N17, GW-N17P1, GW-N18, GW-N18P1, GW-N19, GW-N20, GW- <br /> N21, GW-N22, GW-N23, GW-N24 and GW-N25) were installed. During <br /> August and September of 1987, six additional monitoring wells were <br /> installed, (GW-N29, GW-N30, GW-N31, GW-N32, GW-N33 and GW- <br /> N34). Measurements for static water levels began at these wells immediately <br /> after they were completed and developed. All of the water level data are <br /> presented in tabular and graphic form in Appendix D of Attachment 2.04.7-1 <br /> Hydrological Monitoring Plan. Five more wells (GW-N36, GW-N37, GW- <br /> N38, GW-N39 and GW-N40) were added in May 1993. The first three wells <br /> were drilled in the north-east comer of the permit area. The last two wells <br /> were drilled along the Calamity Draw. <br /> During November 1998, six (6) new ground water monitoring holes were <br /> installed to collect baseline data. Three of these (GW-N41, GW-N42, and <br /> GW-N43) were located in an up dip area while the other three (GW-N44, <br /> GW-N45 and GW-N46) were located in a down dip area of the revised <br /> permit area. The three holes at each site will monitor overburden, coal zone, <br /> and underburden respectively. Baseline data collected between October 1988 <br /> and September 1999 are given in Attachment 2.04.7-2. During March 1999, <br /> two underburden monitoring holes,GW-N 13 and GW-N 19 were plugged and <br /> abandoned. <br /> b. Mine 1: All wells in the area will be monitored on a monthly basis for water <br /> levels and adjusted to MSL. Water Quality parameters will be collected and <br /> analyzed on an annual basis. <br /> c. Mine 2: All wells in the area will be monitored monthly for water levels <br /> adjusted to MSL and samples will be collected on a semi-annual basis for <br /> water quality parameters. <br /> 20 <br />