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gra <br /> Union Ice COMPMY- Weber Street <br /> deport Of Ki7dings <br /> Page: 4 <br /> 4. After completion Of the soils vapor survey, 2 to 3 additional monitor wells <br /> should be installed to confirm contamimult Plume boundaries. <br /> 5. After the confirmation monitor wells described above are installed, an <br /> aquifer test program of the upper aquifer should be conducted in order to <br /> effectively design the ground water remediation program. This aquifer test <br /> c' <br /> program should include; <br /> A. Slug tests in the monitor wells within and adjacent to the Plume. <br /> These tests will yield Preliminary hydraulic properties of the <br /> aquifer, and aid in designing more extensive tests. <br /> B. A step discharge Pumping test of monitor well 4S. <br /> C. A constant discharge pumping test of monitor well 4S (this well <br /> will be converted to a production well). <br /> D. Ground water modeling to aid in Prediction of the success of the <br /> ground water remediation program. <br /> The above represents our best professional opinion as to hydrogeologic conditions at <br /> this site. These opinions were derived using data at hand,and using sta-sidards of care <br /> common to the environmental consulting community in Northern California in Spring <br /> of 1990. Additional work-at this site may generate data that could lead to a change of <br /> opinion regarding site conditions or appropriate site remediation procedures or both. <br /> RED ne <br /> it <br /> WILLIAM R. <br /> 'V,V., HENKI 'i, JR. <br /> No.0107'9 EG 001233 <br /> CERTIFIED <br /> Expires- j- 4)9f ENGINEERING <br /> GEOLOGIST <br /> Steve Furnas William i2. Henkle, Jr. <br /> California Environmeatal Assessor#01079 California Engineering Geologist#001233 <br />