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<br />· A Delta <br /> <br />Environmental <br />~... Consultants, Inc. <br /> <br />1801 Highway 8, Suite 114 <br />51. Paul, MN 55112 <br />612/636-2427 <br />FAX:612/636-8552 <br /> <br /> <br />August 10, 1990 <br /> <br /> <br />Mr. Gary R Berger <br />Village of Arden Hills <br />1450 West Highway 96 <br />Arden Hills, MN 55112 <br /> <br />Subject: Kern Milling - Well Abandonment <br />Bergerson-Caswell Invoice Review <br />Arden Hills, Minnesota <br />Delta No. 10-89-385 <br /> <br />Dear Mr. Berger: <br /> <br />Delta Environmental Consultants, Inc. (Delta), has completed the review of Bergerson-Caswell's <br />. invoices dated June 26 and 27, 1990 (attached). <br /> <br />In reviewing these invoices, Delta itemized the additional costs for work completed beyond the <br />original work scope. These additional costs are itemized below. <br /> <br /> <br /> <br />. Addition of well casing extensions during demolition work $ 368.00 <br /> <br /> <br />. Airlifted/cleaned four-and six-inch supply wells $ 2,080.00 <br /> <br /> <br />. Additional grouting time (wells deeper than <br /> <br />estimated) $ 484.65 <br /> <br /> <br />. Additional grout (wells deeper than estimated) $ 2,528.25 <br /> <br /> <br />. Pea rock for abandonment work in bedrock wells $ 170.66 <br /> <br /> <br /> <br />TOTAL ADDITIONAL COSTS $ 5,63156 <br /> <br /> <br /> <br /> <br />. <br /> <br /> <br /> <br /> <br /> <br />Practical Solutions to Environmental Concerns <br />