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3.3.4.2 Ground Water Monitoring <br />C <br />u <br />r ~ <br />L_J <br />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, the Operator requested and received approval from the <br />Division for a revision in the monitoring system to reflect the <br />actual operating conditions at the site. Table 3.3-4a summarizes <br />the monitoring requirements and sampling frequency approved by the <br />Division. The mine site was reclaimed during 1994. The <br />requirement to perform ground water monitoring ceased at the end of <br />1994 and all of the ground water monitoring wells have been <br />reclaimed. <br />Table 3.3-4a. Past Moaitoring Requiremeats - No Mine Activity <br />(June 21, 1988 - 1994 - No monitoring after 1994) <br />Monitorin4 Site Frequency <br />OW-3L Quarterly Field, Annual Chemical Analysis <br />OW-4L Quarterly Field, Annual Chemical Analysis <br />OW-7 Quarterly Field, Annual Chemical Analysis <br />OW-8 Quarterly Field, Annual Chemical Analysis <br />OW-12 Quarterly Field, Annual Chemical Analysis <br />OW-13 Quarterly Field, Annual Chemical Analysis <br />OW-14 Quarterly Field, Annual Chemical Analysis <br />Field Parameters: Water Level, pH, Temperature, Conductivity <br />Chemical Parameters: <br />Fluoride (FL) <br />Calcium (Ca) <br />Magnesium (Mg) <br />Sodium (Na) <br />Nitrate ( N0~ ) <br />Chloride (C1) <br />Sodium Adsorption <br />Sulfate (SO,) <br />Alkalinity (Alk) <br />Total Diss. Solids (TDS) <br />Conductivity (Lab) <br />pH (Lab) <br />Ratio (SAR) <br />Table 3.3-4b. Status of Past Groundwater Monitoring System <br />Well Total Depth Condition of Well Comments <br />OW-3L 104 Feet Reclaimed <br />OW-4L 73 Feet Reclaimed <br />OW-7 74 Feet Reclaimed <br />OW-8 85 Feet Reclaimed <br />OW-12 98 Feet Reclaimed <br />OW-13 112 Feet Reclaimed <br />OW-14 117 Feet Reclaimed <br />OW-15 28 Feet Reclaimed <br />LO-1 13 Feet Reclaimed <br />NCIG - Coal Ridge No. 1 <br />3-23 <br />Dry Since Drilled <br />Destroyed See OW-15 <br />Dry Since Drilled <br />Dry Since Drilled <br />Dry Since Fall 1985 <br />water Below 100' <br />Replaced OW-4L <br />Lacy Loadout <br />09-09-96 <br />