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DAI-IL. <br /> & ASSOCIATES, INC. • <br /> Environmental Consultants,Contractors&Engineers <br /> February 23, 1.996 <br /> Mr. Tom Manke <br /> ZAHL Equipment,Inc. <br /> 3101 Spring Street, N.E. <br /> Minneapolis,MN 55413 <br /> Dear Tom: <br /> RE: Proposed Soil Ventilation and Air Sparging Pilot Test at the Former People's <br /> Plus Station Located at 2280 West County Road I, Moundsview, MN. <br /> Attached for your review please find a proposed pilot study layout. Please review the layout and <br /> provide me with any comments that you may have. <br /> To conduct a pilot test, DAHL has proposed the installation of two soil vapor vents, three soil <br /> vapor probes, and one sparge point. All of the structures will be completed flush with the <br /> ground. Drilling of these structures can be completed in approximately two days. The locations <br /> of the structures are designed to give us the information we need, as well as not to interfere with <br /> your business traffic. <br /> The pilot test itself will take approximately three days to complete. During the three day pilot <br /> test a DAHL technician will be collecting data from each of the pilot structures and from some of <br /> the existing monitoring wells. I don't anticipate causing any disruption to your business during <br /> the pilot test. <br /> If you have questions regarding the work, don't hesitate to call me, I'll be glad to answer any of <br /> your questions. <br /> Sincerely, <br /> DAHL & ASSOCIATES, INC. <br /> Je Ryan <br /> Project Manager <br /> jJr • <br /> Enclosure: 1). Pilot Test Layout Map <br /> 4390 McMenemy Road•Saint Paul.Minnesota 55127•(612)490-2905•FAX(612)490-3777 <br />