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f <br /> Quik Stop Market No. 132 <br /> Job No. 349132-31 August 28, 1990 <br /> Page 2 <br /> PROPOSED SCOPE OF WORD <br /> Exceltech proposes to drill and sample five exploratory soil borings at the locations <br /> shown in Figure 2, Three borings will be converted to groundwater monitoring wells <br /> upon their completion. If the results of the groundwater analysis of these wells show <br /> that hydrocarbons are present,Exceltech will install wells where appropriate to fill any <br /> data gap in an attempt to di.-fine the extent of contamination. The location of additional <br /> wells, if necessary, will be determined to 1) define lateral contamination with cross- <br /> gradient monitoring wells and 2) define the source of contamination with monitoring <br /> wells downgradient. Tf further groundwater characterization is necessary, Exceltech <br /> will proceed acemding to the following flow chart: <br /> fw <br /> I Groundwater Characterization Flow Chart <br /> i <br /> First Question: Has groundwater been impacted? <br /> Yes Define soil contamination <br /> 'task I. A. Investigate source area(s)-tank complex-dispensers <br /> q <br /> B' Plume definition; has a zero point Wcn defined during this drilling phase <br /> C. Water characterization; TDS-Chlorides-etc, <br /> D. Aquifer; slu testing-recharge capabilities <br /> E. Domesdc we I study of the area-other ongoing investigations <br /> Second Q�Estlon: Has plume been defined? <br /> 1< <br /> `> Y dao to Task 3 <br /> No <br /> `F l' Task 2. A, Shallow groundwater study possible <br /> r B, Plume migrating <br /> C, Interim product problem needs to be addressed <br /> D. Further drilling required(on-site/off-site) <br /> Third Question: plume undefined <br /> Plume defined . Go to Task 2 <br /> as rf <br /> A <br /> Yes <br /> �f Task 3. A. Determine if cleanup is warranted <br /> B. Determine by testing(pump test) <br /> t� I. radial influence(capture zone) <br /> 2, type of remed[a11vn system requited: : a. carbon <br /> } b,incineration <br /> ,�. ?• RAF plan with system design <br /> t f; �5�H331 3 9T:eD 06, 62 5njt <br /> l '. <br />