Laserfiche WebLink
TKD/� <br />TOLTZSON <br />KING,TES,IN, <br />..LL ..LL <br />AND INCORPORATED <br />AND ASSOCIATES, INCORPORATED <br />ENGINEERS • ARCHITECTS • PLANNERS <br />1500 PIPER JAFFRAV PLAZA <br />444 CEDAR STREET <br />SAINT PAUL, MINNESOTA 55101-2140 <br />PHONE:0121262-4400 FAX:012/202-0003 <br />March 8, 1994 <br />Honorable Mayor and City Council <br />Lake Elmo, Minnesota <br />Re: Olson Lake Estates Pond <br />Lake Elmo, Minnesota <br />Commission No. 9150-940 <br />Dear Mayor and Council: <br />We have made a calculation of the volumes of Olson Lake Estates pond represented in the "as - <br />approved" plan and compared it to the "as -constructed" plan as prepared by the DNR. Pond <br />volume below the outlet elevation is considered "dead" storage. It is this volume which is most <br />beneficial for water quality improvement. We find that the dead storage as constructed exceeds <br />the dead storage provided by the approved plan by 13%. Please refer to the attached chart for the <br />pond computations. <br />Sincerely, <br />Larry D. Bohrer, P.E. <br />LDB/inha <br />Enclosure <br />