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YGAL16 1296 1450* <br />YSAL1 798 1425* <br />YSAL3 798 1000* <br />* indicates value above prediction <br />At Annand Draw alluvial well YAAL14, the average TDS value observed this <br />year was 3050 mg /l. This value exceeds the predicted value of 2036 mg /1. <br />The GWPOC well for the Grassy Creek Alluvium (downstream of Annand <br />Draw), SGAL70, did not exceed the TDS GWPOC standard, 5038 mg /l. <br />At Grassy Creek alluvial well YGAL16, the average TDS value observed <br />this year was 1450 mg /1. This value exceeds the predicted value of 1296 <br />mg /1. The GWPOC well for the Grassy Creek Alluvium, SGAL70, did not <br />exceed the TDS GWPOC standard, 5038 mg /1. <br />At Sage Creek alluvial well YSAL1, the average TDS value observed this <br />year was 1425 mg /l. The TDS value observed this year upstream at Well <br />YSAL3 (directly below Pond 012) was 1000 mg /1. These two values exceed <br />the predicted value of 798 mg /1. The GWPOC well for the Sage Creek <br />Alluvium, YSAL3, did not exceed the TDS GWPOC standard, 2675 mg /l. <br />This year's TDS value at Wadge coal well YW30 was 7475 mg /1. The PHC <br />predicted value for this well is 2570 mg /1. Since 2009, TDS values have <br />been fluctuating up and down, making it difficult to determine an <br />accurate trend. <br />Surface Water <br />A summary of surface water sites is provided in Table 9. Stream <br />monitoring occurs on Sage Creek at Sites YSSF3 and YSS2, and on Grassy <br />Creek at Sites YSGFS and YSGS . These surface water sites are monitored <br />biannually for flow and field parameters (pH, temperature, and <br />electrical conductivity [EC]). All five NPDES sites are monitored <br />monthly for NPDES parameters and field parameters. Samples obtained at <br />the stream sites are analyzed for one of the new surface water parameter <br />lists during spring runoff and summer baseflow. Spring sites are <br />VA <br />