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------------------- <br /> ;r <br /> July 16 , 1987 = " _ AGS Job No. 87048=1 <br /> Beacon Station #675 - Lockefo.rd;. CA <br /> Record of Analysis for the water samples are included in the <br /> Appendix of this report. <br /> EVALUATION OF -GROUND WATER GRADIENT <br /> A Wild NA-24 automatic levelling instrument was used to measure <br /> the differences in elevation between the instrument and the top <br /> " of the casing for each of- the monitoring wells. Measurements <br /> were recorded -to 'the nearest' 0 . 001 foot. The elevation <br /> F <br /> differences were combined with,=measurements of the depth to <br /> Ll static water made with a Solinst: electric water level. indicator, <br /> to calculate the water level elevation differences between the <br /> wells (Table 1 ) . <br /> =4' <br /> ► - TABLE 1 <br /> Ground Water Elevation Differences <br /> =w in Monitoring Wells <br /> _ -Beacon--Station 4675 <br /> Lockefora,4 California_ <br /> 4June' 16 , 198-7 <br /> MONITORING TOP OF CASING =-= STATIC WATER LEVEL <br /> WELL - - BELOW DATUM WATER --BELOW = - <br /> NUMBER (FEET) - LEVEL* DATUM <br /> ------------------- --------------------------- <br /> MW--1 0 . 380 s W 62 . 0.7 62 . 45 <br />' MW-2 0 . 740 61 . 92 62 . 66 - <br /> MW-3 0 . 000 - 62. 50 - 62 . 50 <br /> - = MW-4 1 . 165 , 61,. 3.1:_. = 62 . 48 <br /> _ <br /> -----------w -=-_----_-----___ ______ ------------------------- <br /> Measurements in feet- <br /> Static <br /> eet Static water level measured in-`feet below- top of, casing <br /> Datum is an arbitrary elevation corresponding to t_op ,pf MW--3 <br /> casing <br /> ,4pp/led GeoSYSAMS <br />