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TABLE 4 <br />Postmine Ground and Surface Water <br />N03-N Datal for the Southern Portion of <br />the k'adge Mining Area, Seneca Mine, October, 1986. <br />NPDES Pond Site Spoil Spring Site Undisturbed Overburden <br />UA-00042 BP-00012 Site BA-00052 <br />Sample N03-N Sample N03-N Sample N03-N <br />Date Value Date Value Date Value <br />03-08-83 1.34 06-02-86 6.88 06-26-84 8.93 <br />OQ-14-83 5.70 09-12-85 8.48 <br />01-13-83 4.80 <br />10-06-83 13.80 <br />01-19-84 8.80 <br />04-1U-84 4.04 <br />07-17-84 2.47 <br />10-02-84 <br />07 <br />85 <br />3 0.40 <br />70 <br />3 <br />- <br />- <br />0 . <br />06-05-85 3.83 <br />09-05-85 0.02 <br />03-04-86 9.67 <br />04-D8-~6 8.23 <br />06-02-86 4.08 <br />MEAN 5.06(3.87)3 __ 6.88(0.00)3 <br />lUnits are mg/1 for all N03-N values. <br />2See Exhibit 7-2, Hydrology Monitoring Site Location Map. <br />3Standard deviation from the mean. <br />• <br />3 <br />13 <br />