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MCCOMBS-KNUTSON ASSOCIATES, INC. CONSULTING ENGINEERS 2 LANO SURVEYORS • SITE PLANNERS October 17, 1975 Mr. Henry Muhich Zoning Administrator City of Orono P.O. Box 66 Crystal Bay, Minnesota 55323 Subject: Erosion Control Measures on Lots 17 b 18, Block 1, Baldur Park Dear Hank: The purpose of this letter is to inform you of our recommended erosion control measures on Lots 17 and 18, Block 1, Baldur Park, owned by Mr. Theodore W. Boer. Mr. Boer intends to excavate along the northerly (lake) side and northeasterly side of his home, for the pur,^ se of constructing a basement under the home. Excavated material will be used to fill low areas on the garage side of his home and to fill an existing low area to the northeast of the home (above the existing tree line). Before excavation and fill operations commence, Mr. Boer shall construct a temporary earthen berm at the base of the existing steps to the lake. The berm shall he placed between the emban,.ment to the west and the existing earthen mound to the east of the steps. The berm shall be c, istructed in such a manner as to divert run-off in an easterly direction above (south of) the tree line into the existing fish pond, where deposition of sediment can occur. The berm shall be covered with straw to retard its erosion. Mr. Boer shall place hay bales at the base of the slope along the easterly property line (at the base of the proposed fill area to the northeast of the home). Material excavated prior to construction of the basement shall be stockpiled on the garage side of the home (more than 75 feet from the Lakeshore) until backfilling of the foundation is accomplished, Placement of the fill material shall be 12e05 OLSON MEMORIAL HIGHWAY MINNEAPOLIS MINNESOTA 55411 TELEPHONE $11 559.3700 36 NORTH MAIN STREET HUTCHINSON MINNESOTA 55no TELEPHONE '412, 679 9029 SOUTHWEST ENGINEEMING DIVISION MARSHAL MINNESOTA S82S4 TELEPHONE e507. S32 $620