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,� r 1 <br /> JOHN WHITMAN PROPERTY <br /> DRAINFIELD SYSTEM <br /> ORONO, MINNESOTA <br /> 7-18-86 <br /> I met with John Whiiman this morning on the proposed drainfield site to look <br /> at the question of the interceptor draintile. Since the driveway diverts <br /> runoff water over to the new culvert rather than going through the original <br /> � wide swale, the interceptor drain would not be needed. However, a small <br /> swale about 2 feet deep should be constructed from the end of the culvert <br /> and run to the south around the drainfield trenches to prevent the runoff <br /> water from entering the drainfield area. <br /> Sincerely, <br /> PERCOR, INC. <br /> A . ��'�-�C-�-� <br /> Mark S. Gronberg � • <br /> ` • � <br /> � <br />