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1 <br />' w.wefns oesmxEAsm�n,rms <br /> • 3.0 MONITORING RESULTS SUMMARY <br />' 3.1 GROUNDWATER PHYSICAL CHARACTERISTICS AND POTENTIOMETRIC <br /> SURFACE ELEVATIONS <br />' Table 3-1resents a summary fgroundwater <br /> p ary o parameters, depths and elevations Since 17 <br />' September 1998 (the last available groundwater elevation data) groundwater elevations have <br /> increased by an average of 0 22 feet Water levels in MW-5 and MW-8 were inadvertently not <br /> recorded. <br /> 1 <br />' Table 3-1 <br /> Groundwater Parameter, Depth, and Elevation Data <br />' 9-10 <br /> Top of December <br /> Conduc- Casing Depth to 1998 Water <br />' Temp tivity Elevation (ft Water Elevation (ft <br /> Well (°F) pH (/LMHOS) MSL) (ft) MSL) <br />'. MW-2 NM NM NM NM NM NM <br /> MW-2A 66 6 6 74 1,513 11 91 28 16 -16 25 <br /> MW-3A 65 1 701 1,842 11 23 27 66 -16 43 <br /> MW-4 66 7 7 62 1,269 13 46 28 92 -1546 <br /> MW-5 NM NM NM 1283 NM NM <br /> MW-6 64 0 6 92 1,305 13 17 28 05 -14 88 <br /> MW-7 65 7 7 16 1,320 1314 29 71 -16 57 <br /> MW-8 NM NM NM 13 76 NM NM <br /> MW-9 67 8 6 95 1,662 1226 2947 -1621 <br /> Note NM = Not Measured <br /> A potentiometric contour map developed from the water level data is presented on Figure 3-1. <br /> As in previous sampling rounds groundwater flow is generally toward the north-northeast within <br /> a trough. The average horizontal groundwater gradient down the center of the trough appears <br /> to remain at about 0.0007 ft/ft <br /> L\PR031;CrS\SANM\[1SAIHSA_99JAN 5 Immmy 1999 <br />