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Bonestroo <br />Rosene <br />Anderlik & <br />Associates <br />Engineers & Architects <br />Otto G BoofCOQ PE <br />SCOf'T W PE <br />Jcurph C PE <br />V^rvtn L jcr.aa PE <br />»<nanJ E Turner PE <br />P Cocit PE <br />Thcmjs E Nt?yrv PE <br />PoOeT G ic^ur<r'!, PE <br />Sovm M £^er/^ C PA <br />KtxP A Gocjon PE <br />PchjftJ W FojXff PE <br />Dcy'JW C Bonjjnjt. PE <br />A BcufOon PE <br />Vj/k A Hamon PE <br />T«3 K F^. PE <br />r Rautmjr>n P? <br />Pct-et P P'ffff'V PE <br />D/vxj O icsuxXJ PE <br />Th<XTVIS W P«PTC^ ®E <br />Mchjet C L>T«cr> PE <br />ft \Uana PE <br />Kcnr'etfr p Andf^^on PE <br />K*j'% P fio#! PE <br />Pooeft C Puixk. AI % <br />Thomai E An9ul PE <br />Hc^artJ A Sjo^ PE <br />j Edgtrrr PE <br />K^jrk A 5fiO Pt <br />PhiHp j Cjiwph PE <br />ivna^ Marr/^;, PE <br />Mi'k D PE <br />Thomas P Arorrjcr' * <br />Gary F P>iaroef. PE <br />ft ,!«nseo, PE <br />L Phillip Grjv^ ♦« PE <br />Ppne C p'uT'aa A i A <br />Agnei M AlC P <br />Mry D fy<t«£n. PE <br />Ceti^o OirviTf PE <br />PPC^ P Ctooa PE <br />Gan/ X' Vor^. PE <br />njTn L W*r?nen. PE <br />iCr'th R Yjpd PE <br />Charges A E^oison <br />Lpo M **/Ar i*y <br />Harran M Qijn <br />October 8, 1991 <br />fL <br />1 OTYCF <br />City of Orono <br />Box 66 <br />Crystal Bay, KM r. c o O O <br />^ mJ <br />Attention: Ms. Jeanne Mabusth, <br />Building and Zoning Administrator <br />Re: City of Long Lake <br />Minnesota Orchard Pond Plat <br />Wetland Delineation - Sept. 13., 1991 <br />rocf ii 1991 <br />Dear Jeanne: <br />I would like to summarize the findings of our September 13, 1991 wetland <br />delineation of the Orchard Pond site, and discuss the environmental status of <br />the wastewater treatment lagoon on the site. <br />The wetland outline was delineated, based on consideration of soil, hydrology, <br />vegetation, and topography. The outline of the wetland/upland transition <br />was staked by myself with input from Dave Squire, McCombs Frank Ross <br />Associates, and Jeanne Mabusth, City of Orono, aru subsequently surveyed by a <br />crew from McCombs, Frank Rons Associates. A map r,£ the wetland delineation is <br />enclosed. The wetland soils are classified as a peaty muck (based on the <br />Hennepin County Soil Survey (Pa - peaty muck)), and support vegetation that is <br />dominated by reed canary grass (Phalaris arundinscea). Reed canary grass <br />seemed to delineate fe wetland area and .qeldeurod and ether aster species <br />characterized upland areas. The transition from vocland to upland zreas was <br />marked with a change in organic content of the soils. Wetland soils were <br />peaty (highly organic) and upland soils had more mineral content, with Sv. "e <br />sand found in the subsoil. <br />In the wetland area, the water table was approximately 14 inches below the <br />surface while in the upland area, it was greater than 18 inches. The map of <br />the topography of the wetland shows a gradient with a high point of 944.95 <br />near the Orono Orchard Road, sloping to 940.15 near the Long Lake stream. <br />A potential building site to the south of the stabilization pond was also <br />reviewed. This site, which formerly was a wetland area, was filled with <br />borrow material around the time of the pond construction in the 1960's. There <br />are no strong indicators now present that would characterize this area as a <br />wetland area (based on hydrology and vegetation). The fill material at the <br />site is a grey-brown sandy clay loam that is heavily mottled. This fill <br />material probably was mottled when it was placed in this area. <br />210 <br />2335 West Highway 36 • St. Paul, Minnesota 55113 • 612-636-4600 • 35th Anniversary