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r <br />January 19, 1978 <br />Mr. Hank Muhich <br />Building & Zoning Director <br />City of Orono <br />P.O. Box 66 <br />Crystal Bay, Minnesota 55323 <br />Dear Mr. Muhich: <br />545 Indian Mound <br />Wayzata, Minnesota 55391 <br />(612) 473-4224 <br />i <br />JAPE 2u ly,u <br />VILLAGE OF9 OBOU0 <br />We have located on the accompanying map the percolation test <br />holes for both the May and the December, 1977 test on the <br />Fred Broling property. <br />As you can see, the test holes are very close together and <br />the difference in percolation rates recorded between Ma. <br />December should not have occurred. <br />As agreed with Mr. Olson of Bonestroo and Associates, we <br />have retested the percolation rates for the December, 1978 <br />alternate field. <br />The test results recorded on January 18, 1978 for the alternate <br />field were the same as those recorded in December, with an <br />average percolation rate of 17.1 minutes/inch. <br />The only explanation for the higher rates recorded during May, <br />1977 at 78 minutes/inch is that the percolation test holes <br />did not penetrate the B Horizon of the Hayden soil. <br />I hope that this clarifies the matter and expedites the Fred <br />Broling request for a building permit. <br />Sincerely, <br />EUGENE A. HICKOK AND ASSOCIATES <br />Marcus C. Hannaman <br />Soils Scientist <br />MCH/cml <br />Enclosure <br />cc: F. Broling <br />J. Olson <br />