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SUBJECT: Well Abandonment Work Plan <br />Former Chase Chevrolet Property <br />424 North Van Buren St <br />Stockton, California <br />The following tasks will be completed pursuant to the abandonment of the Soil Vapor wells <br />installed at the future site of the Great Wolf Lodge, 2600 W. Yosemite, Manteca, California (see <br />figure attached). <br />Background <br />Soil vapor probes SV-1, SV-2, and SV-3 were installed using a nominal 3-inchdiameter <br />hand auger in accordance with procedures described in the Work Plan. Hand auger <br />boreholes were advanced within the unoccupied retail space on the north side of the parking <br />garage. Boreholes were advanced to 5 ft bgs, and a five-inch vapor probe was installed within a <br />one-foot sand pack interval installed between 4 and 5 ft bgs. The vapor probe implant was <br />attached to a 7-foot length of 0.25-inch diameter Nylaflow0 tubing and a Swagelok0-style valve <br />was attached at the opposite end. A well box was set in concrete on the unpaved surface. <br />TEST WELL CONSTRUCTION SUMMARY <br />Vapor Well <br />Inside <br />Tubing <br />Diameter <br />Total Depth <br />(feet bgs) <br />Screened Interval <br />(feet bgs) <br />SV-1 .25 5 4.5-5' <br />SV-2 .25 5 4.5-5' <br />SV-3 .25 5 4.5-5' <br />Task 1 - Permitting and Pre-Field Activities <br />Permitting and Utility Clearance <br />Woodward Drilling Company, Inc will coordinate for the preparation and submittal of the San <br />Joaquin County EHD well abandonment permit application and fees. <br />Prior to the well abandonment, the well locations will be marked in white paint on the pavement <br />near the well site. Underground Service Alert (USA) will be contacted at least three working <br />days prior to conducting field work to notify local utilities of the proposed subsurface work. USA <br />provides a partial location service free of charge for major utility lines. <br />Page 1 of 4 Feb 28, 2019 <br />Woodward Drilling Company, Inc. PO Box 336, Rio Vista, CA 94571 (9707) 374 — 4300 <br />wayne@woodwarddrilling.com