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Table 1 . South Gifford Road Landfill Proposed Semi-Annual Groundwater Monitoring Network <br /> Well Total Well Screened Top of Casing Analyses Proposed <br /> Well Name Diameter Depth Interval Elevation Sampling Rationale EPAMPIS <br /> (in) (ft, BLS) (ft, BLS) (ft, NGVD) 1 NA' a <br /> 8260 List <br /> B Zone (35 - 45 ft BLS) <br /> GR-MWO1B 2 35 30 .00 — 34 . 51 24 . 57 Upgradient MPIS monitoring well . ✓ <br /> Monitor groundwater (-900 ft) southeast of source area. <br /> GR-MW02B 2 35 29 . 59 — 34 . 11 27 .61 V/ V/Downgradient MPIS monitoring well . <br /> GR-MW03B 2 35 29 .60 — 34 . 11 24 .43 Downgradient MPIS monitoring well . ✓ <br /> GR-MW04B 2 35 29 . 74 — 34 . 26 27 .02 Downgradient MPIS monitoring well . ✓ <br /> GR-MW06B 2 30 20 - 30 23 . 58 Monitor groundwater south of plume, currently free of ✓ <br /> CVOCs . <br /> GR-MW07B 2 30 20 . 18 — 29 . 69 24 . 57 Monitor groundwater southwest of plume centerline, currently ✓ ✓ <br /> free of TCE . Downgradient MPIS monitoring well . <br /> GR-MW08B 2 30 25 .30 — 29 . 26 25 .23 Monitor groundwater ( 1300 ft) southeast of source area. ✓ ✓ <br /> MPIS monitoring well . <br /> GR-MW09B 2 31 . 1 24 - 29 27 .34 Monitor groundwater northeast of plume, currently free of TCE ✓ <br /> and cDCE . <br /> GR-MW IOB 2 32 . 3 25 - 30 28 . 73 Monitor groundwater southwest of plume, currently free of ✓ <br /> TCE and cDCE . <br /> GR-MW 12B 2 29 . 5 24 . 5 - 29 . 5 26 . 52 <br /> Monitor groundwater east of plume, currently free of TCE and <br /> ✓ <br /> cDCE . <br /> GR-MW 15B 2 35 25 - 35 21 .92 Monitor groundwater (2400 ft) southeast of source area along ✓ ✓ <br /> centerline of plulne - <br /> GR-MW 16B 2 35 25 - 35 24 . 72 Downgradient MPIS monitoring well . ✓ <br /> GR-MW 17B 2 40 30 - 40 25 . 04 Downgradient MPIS monitoring well . ✓ <br /> XR05010 IRC MPIS-PM Sampling\R050001J-Table.xls Page 2 of 6 <br />