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TABLE 15 <br />Comparison of Surface Wa[er Guali ty to OSM RE Irrigation Standards <br />Seneca II-W Mine <br /> Analytical <br />Site Parameter Standard Date Value <br /> <br />SW-52W-FG1 Sulfate 200 mg/l 04/21/92 307 mg/l <br /> 06/16/92 529 mg/l <br />~ <br /> 09/15/92 578 mg/l <br /> pH 6.5 -8.5 04/21/92 8.51 <br /> Manganese, <br /> total 0.20 mg/l 06/16/92 0.25 mg/l <br />SY-S2W-SGS Sulfate 200 mg/l 04/21/92 389 mg/l ', <br /> 06/16/92 562 mg/l ' <br /> 09/15/92 683 mg/l <br /> pH 6.5 -8.5 04/21/92 8.70 <br />• Manganese, <br /> total 0.20 mg/l 04/21/92 0.21 mg/l <br /> 06/16/92 0.21 mg/t <br />SY-52Y-FG4 Sulfate 200 mg/t 05/01/91 226 mg/l <br /> 09/02/91 272 mg/l <br /> 03/20/92 282 mg/l <br /> 04/13/92 239 mg/l <br /> 05/14/92 214 mg/l <br />~' 06/18/92 226 mg/l <br /> 07/15/92 313 mg/l <br /> 08/10/92 274 mg/l <br /> 09/10/92 319 mg/l <br /> pH 6.5-8.5 05/01/91 8.68 <br /> 06/17/91 8.62 <br />C <br />A-29 <br />