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s. <br /> QUARTERLY GROUND WATER MONITORING REPORT <br /> t.7gg E,Yosemite Avanue.ManIOC&Caldornia <br /> r� <br /> The results of previous consultant's groundwater sampling and water level measurement <br /> events are summarized and included herein. <br /> Work completed through November 1988 by ETS, included: <br /> o Drilling of four soil borings. Soil boring 4 was converted into groundwater <br /> monitoring well MW-1; <br /> o Collection of soil samples during drilling and groundwater samples after well <br /> development; <br /> a e Submittal of sail and groundwater samples for analytical testing; and <br /> o Preparation of a results report. <br /> Work completed through july 1989 by Delta included: <br /> p Drilling of two soil borings which were completed as groundwater <br /> monitoring wells MW-2 and MW-3' <br /> o Collection of soil samples during drilling and groundwater samples after we!1 <br /> development; <br /> o Submittal of soil and groundwater samples for analytical testing; <br /> 3: o Measurement and calculation groundwater flow direction and hydraulic <br /> t ' gradient; and <br /> o Preparation of a results report. <br /> F P Work completed through September 1990 by Nations Groundwater Associates by <br /> included: <br /> 6 o Abandonment of MW-1 and drilling/completion of MW-1A; <br /> t <br /> o Collection of soil samples during drilling and groundwater samples after well <br /> E development; <br /> a Submittal of soil and groundwater samples for analytical testing; <br /> o Measurement and calculation groundwater flow direction and hydraulic <br /> gradient; and <br /> o Preparation and sui:.-71ittal of a Problem Assessment Report. <br />