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~ •~ <br /> TA <br />4 <br /> CYPRUS YANPA VALLEY COAL CORP <br /> SUMMARY OF WATER QUALITY DATA <br /> STATION NUMBER: 087758 --- 008-77-58 <br /> Average Std Maximus Minimm Units Count Period <br />TRACE METALS <br />ALUMINUM DISSOLVED -180.000 491.9 700.000 -400.000 UG/L 5 03/81 - 04/83 <br />BORON DISSOLVED 301.429 221.7 500.000 -100.000 UG/L 7 03/80 - 04/83 <br />MOLYBDENUM DISSOLVED -71.765 65.0 -10.000 •300.000 UG/L 17 03/81 - 09/93 <br /> TOTAL RECOV -10.000 0.0 •10.000 -10.000 UG/L 1 09/90 - 09/90 <br />NUTRIENTS <br />NITROGEN AMMIUM•TOTAI 1.920 1.9 5.700 -0.020 MG/L 10 10/83 - 09/90 <br /> AMMIA-FREE 0.025 0.0 0.111 -0.001 MG/L 11 03/81 - 09/90 <br /> NITRATE 0.215 0.5 1.850 -0.020 MG/L 14 10/86 - 09/93 <br /> N03+N02 0.965 2.1 9.000 -0.100 MG/L 43 Ob/79 09/93 <br />PHOSPHATE ORTHO-DISS 0.125 0.2 0.62D -0.020 MG/L 27 03/80 - 09/93 <br />Report Date: 31-MAY-94 Page: 3 of 3 <br />Report Mane: WOA020R <br />