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_ 19 _ <br />' TABLE 1. <br /> Mean Quality of Ground Water at the <br /> Coal Ridge No. 1 Mine <br /> (From Tables 3.3-23 to 3.3-296 of Permit Applicati on) <br /> Spec.Cond. pH Alkalinity BiCarb Hardness SAR TDS SOq <br /> umhos/cm (as CaCOg) mg/1 (as CaC03) mg/1 mgjl <br /> mg/1 mg/1 <br /> <br />Rollins 1404 7.8 680 749 388 4.6 925 182 <br />Sandstone <br />2-SK-3H <br />Wheeler 1541 7.5 576 783 517 4.05 1109 313 <br />Coal Seam <br />3-SK-3H <br />Wheeler 803 8.8 457 435 103 9.3 550 26 <br />Coal Seam <br />SK-3.75 <br />OW-8 956 7.4 378 455 5$0 0.4 716 234 <br />Colluvium <br />OW-9 5105 7.2 388 466 2445 4.7 4762 3084 <br />Colluvium <br />OW-10 1828 7.4 604 726 6l0 5.1 1320 467 <br />Colluvium <br />OW-11 3013 8.0 418 487 153 23.1 1813 187 <br />Alluvium <br />