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ATTACHMENT A 7�� T.OLTZ, KING, DUVALL, ANDERSON AND ASSOCIATES. INCORPORATED ENGINEERS ARCHITECTS PLANNERS 2500 AMEHICAN NATIONAL BANK BUILDING SAINT PAUL. MINNESOTA 55101 -1893 612/292-4400 FAX 612/292-0083 November 3, 1987 Honorable Mayor and City Council Lake Elmo, Minnesota Re: Eden Park Drainage Concerns Lake Elmo, Minnesota Commission No. 7113-007 Dear Mayor and Council: At the October 6, 1987, Council meeting, a number of residents within the Eden Park Subdivision submitted a letter to the Council expressing concerns for drainage. The letter was referred to the City Engineer and City Attorney for comment. The following is our review of the engineering questions contained in that letter. QuestlgnAo. 1 was a two-part question regarding information shown on the preliminary plat. Firstly, the plat stated that the "drainage easement will attempt to delineate elevation 891 around the pond". This was a correction procedure since 891 was the accepted flood elevation by the VBWD and City Engineer at that time. Filling was not necessary around the pond to achieve this elevation. Secondly, the preliminary plat showed areas around the pond where fill was to be added. The question was raised as to whether this work was ever done. From our field observations at the Voge's lot, it cannot be determined if fill was added. The preliminary plat showed that fill would be added below elevation 885. The present pond level is about 886. Whether the fill was or was not placed does not change the situation and would not move the water farther away from the Voge's home. There was no Developer's Agreement on this subdivision. que5tlQn_Ng,.-2 asked about a City policy on flooded streets. The City has no "policy" on flooded streets; however, flooded streets are not new to the City. 20th Street, 50th Street, Hill Trail and the end of 32nd have been under water at least once in recent history. In each case the City hauled in fill as necessary with no local assessment. The possibility of flooded streets brings up the more serious issue of access. Keep in mind that when Eden Park was platted, 891 was the official flood elevation. Under these conditions, the low spot in Legion Avenue would be covered with two feet of water and the low spot on Legion Lane would be covered with three Inches of wa er. Although not desirable, Legion Lane would still be traversable and access would be maintained.