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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 EPA MPIS <br /> (in) (ft, BLS) (ft, BLS) (ft, NGVD) Z <br /> 8260' NA List' <br /> GR-MW 18B 2 40 30 - 40 21 . 61 Monitor groundwater northeast of plume, currently free of TCE ✓ ✓ <br /> and VC . <br /> GR-MW 19B 2 40 30 - 40 21 .26 Monitor groundwater (-600 ft) northwest of source area. ✓ <br /> GR-MW21B 2 40 30 - 40 26 .05 Monitor groundwater southwest of plume, currently free of ✓ <br /> CVOCs . <br /> GR-MW22B 2 40 30 - 40 21 .43 Monitor groundwater northeast of plume, currently free of ✓ <br /> CVOCs . <br /> GR-MW23B 2 40 30 - 40 22 . 12 Monitor groundwater (-900 ft) northwest of source area. ✓ <br /> GR-MW27B 2 40 30 - 40 NA Monitor groundwater ( 1300 ft) upgradient of source area. ✓ ✓ <br /> GR-MW28B 2 40 30 - 40 NA Monitor groundwater ( 1500 ft) southeast of source area. ✓ ✓ <br /> GR-MW30B 3/4 39 .4 29 .4 - 39 .4 NA Monitor former source area. ✓ ✓ <br /> GR-MW31B 2 45 35 - 45 NA Monitor and provide delineation of northwest extent of CVOC ✓ <br /> plume . <br /> GR-MW32B 2 45 35 - 45 NA Monitor and provide delineation of northwest extent of CVOC ✓ <br /> plume. <br /> D Zone (40 - 55 ft BLS) <br /> Monitor groundwater (900 ft) southeast of source area. <br /> GR-MW02D 2 50 40 - 50 25 .38 ✓ ✓ ✓ <br /> Downgradient MP11% monitoring well <br /> GR-MW03D 2 55 45 - 55 22 .96 Monitor groundwater southwest of plume, currently free of ✓ ✓ <br /> TCE and cDCE . Downgradient MPIS monitoring well . <br /> GR-MW04D 2 55 45 - 55 25 . 35 Downgradient MPIS monitoring well . ✓ <br /> XR05010 IRC MPIS-PM Sampling�R050001J-Table.xls Page 3 of 6 <br />