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• This system provided operational monitoring of the facilities area <br />and bedrock locations near the advancing rock tunnels. Table 3.3-3 <br />also summarizes the sampling frequency and chemical parameters. <br />After cessation of mine development in 1986, the operational <br />monitoring system was maintained as well as possible. In June of <br />1988, NCEC requested and received approval from MLRD for a revision <br />in the monitoring system to reflect the actual operating onditions <br />at the NCEC site. Table 3.3-4a summarizes the monitor' g require- <br />ments and sampling frequency approved by MLRD. Table 3.3-4b <br />summarizes the condition of the present monitori system. <br />u <br /> <br />Table 3.3-4a. Present Monitoring F <br />(Jun 21, 1988 - Present) <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Monl Coring Site Frequency <br />OW-3L OF, AA <br />OW-4L OF,AA <br />OW-7 F, AA <br />OW-8 ,AA <br />Ow-12 0 AA <br />OW-13 pF, <br />OW-14 OF. <br />- No Mine Activity <br />Legend: O puarterly <br />A = Annual <br />F Field Paramete s <br />A ~ Chemical Analys <br />Field Parameters: Water Lev p Temperature, Conductivity <br />Chemical Parame cers: Fl ouride (Fl) Sulfate (50,) <br />Calcium (Ca) Alkalinity (Alk) <br />Magnes m (Mg) Total Dissolved Solids (TDS) <br />Sodiu (Nal Conductivity (lab) <br />Nltr a (N0,) pH (lab) <br />Chlo ide (C1) <br />Sod'um Adsorption Rati (SARI <br />Table 3.3-4(b). Status of Present <br />Well Total Condition Lockl ng <br />Name Depth of Well Cap <br />OW-3L 109 ft OK No <br />OW-4L 73 ft Dest toyed No <br />OW-7 74 ft ON No <br />OW-8 BS f Poor No <br />OW-12 98 t Good Yes <br />OW-13 112 ft Good Yes <br />OW-14 11 ft Good Yes <br />r Monitoring System <br />Dr since drilled <br />PVC casing broken be lov grcund level <br />Dry lnce dti lied <br />PVC b oken off at ground surface <br />Dry sr ce drilled <br />Dry si ce Fall 85 <br />water 6 lou 100' <br />• Completion information for wells OW-12, 13, and 1q are pr ov Sded Sn <br />NCEC - Coal Ridge #1 <br />3-23 <br />3.3-3 <br />ABC/1145/900301 <br />