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' ealog'caf�Fec6in- 2nt Page 5 <br /> Geo , be installation Report <br /> Cardoza(Super Stop) <br /> Project No 662 2 <br /> June 12,2001 <br /> ' • The installation of two additional monitoring wells, MW-4 and MW-5, in the <br /> locations indicated in Figure 2 Well MW-4 will be located in the predominant <br /> down gradient direction as shown in Figure 3 — Groundwater Gradient Rose <br /> Diagram Well MW-5 will be placed to the north of the site in the direction of the <br /> highest recorded groundwater gradient (a magnitude of 0 018 ft/ft - April 27, 2001 <br /> ' event) The wells will be screened from 35 — 40 feet bgs to determine if a "diving" <br /> plume is present <br /> • Perforin monthly groundwater measurements at the site for a six-month period to <br /> ' determine groundwater gradient trends <br /> • Perform a risk evaluation to determine the threat that MTBE poses to public health <br /> ' 5.0 LIMITATIONS <br /> This report was prepared in accordance with the accepted standards and practices of the <br /> field of environmental geology, groundwater hydrology and good business practices It <br /> should be recognized that definition and evaluation of environmental conditions is a <br /> difficult and an inexact science Judgments leading to conclusions and recommendations <br /> ' are generally made with an incomplete knowledge of the site-specific conditions present <br /> The tasks proposed and completed during this project were reviewed and approved by the <br /> local regulatory agency for compliance with the law No warranty, expressed or implied, is <br /> made <br /> ' 6.0 SIGNATURES & CERTIFICATION <br /> If you have any questions or if we can be of further assistance, please do not hesitate to <br /> contact our office at 209-538-6424 <br /> This report was prepared by <br /> ' 8 <br /> G eofo icafTechnus Inc <br /> 1 <br /> ' 3oseph EVAhgulo <br /> Geologist � c <br /> p <br /> 4 KA91N`40tK is G? <br /> w u' <br /> NO 523; <br /> Raynold 1 Kablanow II, Ph D <br /> California Registered Geologist#5234 �kOF.�UIOQ <br /> Certified Hydrogeologist #442 <br />