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disturbance in this area other than possible subsidence, the <br /> mine is not expected to affect Second Alkali Creek. <br /> In order to supplement surface water baseline data in the <br /> permit area, the following stipulation is included here. <br /> Stipulation No . 15 <br /> THE OPERATOR SHALL MONITOR FLOWS IN SECOND ALKALI CREEK SO AS <br /> TO MEASURE MINIMUM AND MAXIMUM FLOWS DURING EACH QUARTER <br /> FOLLOWING APPROVAL OF PERMIT REVISION NO. 1 . DURING THE <br /> MONITORING YEAR, AT LEAST ONE GRAB SAMPLE SHALL BE COLLECTED <br /> WHEN STREAMFLOW IS PRESENT. THIS SAMPLE SHALL BE SUBMITTED <br /> FOR LAB ANALYSIS FOR TOTAL DISSOLVED SOLIDS, TOTAL SUSPENDED <br /> SOLIDS, pH, TOTAL DISSOLVED IRON AND MANGANESE. RESULTS OF <br /> THESE ANALYSES SHALL BE SUBMITTED TO THE DIVISION WITHIN 60 <br /> DAYS FOLLOWING THE END OF THE FIRST MONITORING YEAR WHICH ENDS <br /> ON JUNE 30, 1992 . <br /> Oak Creek, a perennial stream, flows near the loadout. The <br /> operator has conducted quarterly upstream and downstream <br /> monitoring of this creek and continues to do so . There have <br /> been no apparent impacts on Oak Creek from the operation of <br /> the loadout . Any surface water drainage from the disturbed <br /> area passes through a sediment pond and must meet NPDES <br /> effluent limits . There has never been a recorded discharge <br /> from either of the loadout ponds . As a result, no impacts to <br /> Oak Creek are anticipated. <br /> Baseline surface water quality in the permit and adjacent <br /> areas reflects the effects of previous coal mining activities . <br /> Surface water in the mine and loadout areas can be <br /> characterized as calcium-carbonate and sodium sulfate types, <br /> respectively. Surface water baseline monitoring data provided <br /> by the operator shows high levels of both TSS and TDS and <br /> elevated concentrations of iron. Water samples collected from <br /> Newlin Creek in 1983-84 had TSS levels of 4-16 mg/1 and TDS <br /> levels of 110-165 mg/l . Iron levels of these samples ranged <br /> from 0 . 1 to 3 . 64 mg/l . Current beneficial use of surface <br /> water in both the mine area and loadout area is limited by <br /> upstream diversions . Newlin Creek is diverted by the City of <br /> Florence upstream from the mine . Oak Creek is utilized as a <br /> primary municipal water source for the town of Rockvale five <br /> miles upstream from the loadout area . Therefore, impacts of <br /> the mine on beneficial use of water are considered negligible. <br /> The only significant change in the surface hydrologic balance <br /> Southfield Mine Permit Renewal 03 <br /> 45 <br />