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Chevron Products Company 12 <br />Former Chevron Service Station 95775, 301 West Kettlernan Lane, Lodi, Caltfomia March 30, 2000 <br />. at 0 and 1,000 feet, respectively The extraction well was placed in the center of the grid at <br />xy coordinates 500/500 <br />E <br />Modeling Results <br />Based on the above listed inputs and assuming steady-state conditions, pumping from EX -3 <br />at a constant rate of 8 5 gpm would create a capture zone that extends approximately 130 to <br />150 feet downgradient of EX -3 and have a cross-sectional width of approximately 400 feet <br />The resulting capture zone is presented on Figure 15 <br />If you have any questions or comments regarding this report, please feel free to call Mark A <br />Trewartha at 503 691 2030 or Ronald D Chinn at 650 691 0131, ext 36 <br />Sincerely, <br />SECOR International Incorporated <br />Mark A Trewartha <br />Senior Hydrogeologist <br />RogrrrHoifke <br />Associate Geologist <br />Ronald D Chinn, P E <br />Associate Engineer <br />Attachments <br />Table 1— <br />Operation Data for City of Lodi Well 12 <br />Table 2 — <br />Constant Rate Aquifer Pumping Test Results <br />Figure 1 <br />— Site Location Map <br />Figure 2 <br />— Site Plan with Monitoring Well Locations <br />Figure 3 <br />— MW -1 Background Data <br />Figure 4 <br />— MW-14/EX-2 Background Data <br />Figure 5 <br />— EX -3 Background Data <br />Figure 6 — MW -5A Background Data <br />Figure 7 — MW -5B Background Data <br />I \Chevron1957751Aqurfer test\Revrscd195775Aquifertestrevised doc <br />