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r <br />~~. ~ ~~nn ^^S~~T A22T E O F c~-~ ~~ <br />UV UVLS~© Ulr~l <br />DEPARTMENT OF NATURAL RESOURCES <br />~ioNE NO. 612/296-7523 1200 Warner Rd. , St. Paul, MN. 55106 FILE No. <br />"A. <br /> <br />• <br />• <br />September 1, 1987 <br />Mr. Steve May <br />2359 Pinewood Circle <br />Minneapolis, Minnesota 55432 <br />Dear Mr. May: <br />RE: UNPROTECTED WETLAND - SW }, SECTION S, MOUNDSVIEW <br />On August 28, 1987 I made a field inspection of the above referenced <br />wetland area (in your neighborhood) along with Jerry Smith of the U.S. <br />Army Corps of Engineers (USCOE). <br />The wetland is not under the Department of Natural Resources (DNR) <br />jurisdiction, but it is under the USCOE jurisdiction. In 1979 - 1980, <br />I conducted the Ramsey-County Wetland Inventory which involved field <br />inspection and typing of all potential wetland .areas meeting certain <br />criteria. We used a base- map prepared through aerial photo <br />interpretation of .vegetation types by the University of Minnesota. <br />The infra-red aerial photos were taken in 1978 after a dry year. The <br />vegetation typing from the aerials showed predominantly reed canary <br />grass and shrubs. When I field checked the wetland in 1980, I <br />determined that the vegetation typing was accurate and the wetland was <br />Type 2. The State has jurisdiction over Types 3 - 5 only. I am <br />enclosing a description of the wetland types that were used. <br />When we met on August 28th I found that the wetland has indeed changed <br />character, as many wetlands do. We have been in a wetter period and <br />there is now more development is the area. Generally when there is <br />more impervious surface from roofs,- driveways:.and streets, storm <br />sewers direct more runoff into wetland areas: In my opinion, the <br />increased development has added significantly more water to this basin <br />to cause the vegetation to become, over time, predominantly cattail. <br />Cattail require a wetter moisture regime than grasses and shrubs. <br />Instead of being seasonally flooded as is characteristic of a Type 2, <br />it now appears to be at~least waterlogged.-throughout- the growing <br />season in order to support the cattail growth.-.~.Zf I were to type this <br />wetland now, I would unquestionably call it a good Type 3. <br />., ~; . <br />Increased development will again add~~more impervious surface and <br />generate increased stormwater runoff. If the- wetland area is further <br />encroached upon by fill, there will be less surface'ared to retain the <br />water which may lead to even higher water levels'than~ is presently <br />evident.. .. <br />AN EQUAL OPPORTUNITY EMPLOYER <br /> <br />