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Home My WebLink About#3057 Wetland Delineation·.n n ~n ~ .n - n- n 11 .n _· 11 . .f I · u ... ( U. . -ll Li· Li ll· .u ·-u \ u· ·-·( ; ' .. ,I 560 Big Island _Orono, Minnesota _Prepared by Svoboda Ecological Resources for: · Don Henderson Wetland Classiijcation, Identifi-. cation, and Delineation Services; GPS Services· ; Project No. 2004-312-03/71 Septemb~r 14, 2004 S \ltoB O n Providing the Sh'!rper !'!!; ;;;,nsulting U Natural Resources & Environm . ECOLOGICAL RESOURCES . 2477 Shadywood Road • Excelsior, MN 55331 · · (952) 471-1100 • (952) 471 -0007 (Fax). I SVOBODA ECOLOGICAL RESOURCES ~------------------------------------ Providing the Sharper Edge in Natura) Resources & Environmental Consulting September 14. 2004 Don Henderson 5018 Normandale Court Edina, MN 55436 RE: SER Project Name: 560 Big Island -Orono SER Project No: 2004-312-03 Project Location: Lots 5 & 6, Section 22, T 117N. R23 W, City of Orono, Hennepin County, Minnesota Project Description: Wetland Classification, Identification, Delineation, & Staking · Services; GPS Services Dear Mr. Henderson, As requested, Svoboda Ecological Resources (SER) visited the above referenced property on September 14, 2004 to examine the site for the presence of areas meeting wetland criteria. Criteria · for determining jurisdictional wetlands are as described in the 1987 US. Army Corps of Engineers · Wetlands Delineation Manual ( 198_7 Manual) as required by the Minnesota Wetland -Conservation Act. SITE DESCRIPTION The subject parcel is approximately 1.5 acres consisting of a wooded upland area and a depressional marsh area. The topography of the site varies significantly; perpendicular to the lakeshore and marsh area the property abruptly rises in elevation to the l!Orthwest at roughly a 1 :4 slope. The northwest portion of the property consists of a forested lot while the eastern portion of the property is dominated by »7etland. Lake Minnetonka borders the property to the south (See Figure 1 ). The surrounding area land use consists of singfe-family housing and forested lots. METHODS National Wetland Inventory (NWI) maps (Figure 2), Soil Survey of Hennepin County maps (Figure , 3); Minnesota Protected Waters maps, and 2003 aerial photographs were reviewed prior to the site visit to identify areas that may be wetlands. Areas illustrating evidence of wetland conditions were ' examined in greater detail during the field survey. Vegetation, soils and hydrology were examined ( as outlined in the 1987 Manual) and used to characterize wetland types and determine wetland boundaries. Sample transects were established in representative wetland-to-upland transition zones in order to characterize the vegetation, soils, and hydrology of the site. Transects consisted ·of representative upland sample point(s) and representative wetland sample point(s). Information obtained from the sample points can be found on the field data sheets located in Appendix A. C . . ·, . t) """·" ' ________________________________ __,; ___ ~-r,;:-:'·:· ·+~ l"t, \ 24 77 Shadywood Road • Excelsior, MN 55331 (952) 471-1100 (Office) • (952) 471-0007 (Fax) Wetland boundaries were marked at the site by blaze-orange "wetland boundary" flagging attached to 4-foot wooden lath. Where vegetation was dense, to assist in locating the flagged lath (wetland edge), a second piece of flagging was attached to a nearby tree or shrub branch. The "wetland boundary" is considered to be the topographically highest extent of the wetland basin; areas below the staked boundary met the three required wetland criteria while areas above were lacking in one or more of these criteria Wetland classification followed methods described by Cowardin et al. ( 1979) and used in the NWI (e.g. PEMB, PSS 1 C, etc.), completed by the U.S. Fish and Wildlife Service. The Circular 39 classification (Shaw and Fredine 1956) is also given (e.g. Type 1, Type 2 ... etc.). The indicator status of plants, as described in Appendix B, was determined using the National List of Plant Species That Occur in Wetlands -Region 3 (Sabine 1999). RESULTS AND DISCUSSION Background Information-(Office-Based Investigation) The NWI map (Excelsior Quadrangle) illustrates one wetland basin and one lacustrine (lake) basin on the subject parcel (Figure 2). The wetland is described as a palustrine (P) type wetland exhibiting emergent vegetation (EM) and semipermanently flooded hydro logic regime (F), or a Type 3 PEMF wetland on the NWI map. The lake is described as lacustrine (L) of the lirnnetic subsystem (1) exhibiting an unconsolidated bottom (UB) and a permanently flooded hydrologic regime (H) or a LlUBH lake on the NWI map. The Soil Survey of Hennepin County, Figure 3, indicates three soil series present on the subject property. These soil series are: Hayden loam, lake beaches, sandy, and marsh (see figure 3). Marsh is classified as a hydric soil (SCS Hydric Soils of the United States), illustrated with blue crosshatching on Figure 3. Soil series descriptions are given in Appendix C. Minnesota Department of Natural Resources, State·Protected Waters Map, indicates a protected water body (133P) within the subject parcel (Figure 4). Site Visit SER personnel examined the subject property for areas meeting jurisdictional wetland criteria during the site visit. One basin meeting the jurisdictional criteria of a wetland, for which a boundary was determined, was delineated. Detailed soils, vegetation, and hydrology data for the delineated wetlands are provided in the data sheets of Appendix A. Basin 1 Upon completion of the wetland delineation it has been determined that Basin 1 is a Type 3, palustrine (P) type wetland exhibiting emergent vegetation (EM), and a semipermanently flooded hydrologic regime (F), or a PEMF wetland, located within the eastern portion of the property (See Figure 5). Vegetation at the wetland sample point was dominated by lake bank sedge (Carex lacustris, OBL) and box elder (Acer negundo, FACW-). Non-dominant plant species at the wetland sample point included wood nettle (Laportea canadensis, F ACW), narrow-leaved cattail (Typha angustifolia, OBL), water smartweed (Polygonum amphibium, OBL), and common buckthom (Rhamnus ,. t -~"'~ cC1tharticC1, FACU). The upland sample point was dominated by sugar maple (Acer saccharum, FACU). Non-dominant plant species at the upland sample point included American basswood (Tilia Americana, F ACU), and common buck thorn. The majority of Basin 1 is dominated by cattail species. A dark organic mucky loam overlaying sand with redox features below 6 inches characterized soils at the wetland sample point. Soils at the upland sample point were characterized by a brown loam to clay loam overlaying a sandy clay loam mineral soil with few redox features below 10 inches. Water was observed at 12 inches below the soil surface at the wetland sample point, no water was observed within the borehole at the upland sample point. Approximately 20 lath were used to delineate this basin. A topographic break, the transition from hydrophytic vegetation to upland vegetation, and depth to free water in the borehole were used as the primary boundary cues while delineating this basin. RECOMMENDATIONS While the wetland boundary that SER has delineated is not official until approved by a WCA approved local government unit (LGU), SER advises the property owner to refrain from any filling, draining, or excavating, or any impact to the area SER has delineated as wetland. Depending on the location of the property, buffers around the wetland may also be protected. Any activities in the proximity of the wetland should be cleared with appropriate WCA regulatory agencies. The client should also be aware that approved wetland boundaries are typically valid for only three years from the date of approval. CONCLUSIONS SER examined the subject property and delineated one wetland located within the subject parcel (Figure 5). The delineated wetland boundary exhibited a dominance of hydrophytic vegetation, hydric soils, and wetland hydrology. Based on the apparent permanence of wetland characteristics within Basin 1, this basin likely receives hydrologic inputs from the shallow groundwater table, as well as from runoff from the surrounding landscape. Please feel free to contact Ben Carlson or Frank Svoboda at (952) 471-1100 if you have any questions regarding the information in this report. You will be receiving a follow-up phone call in two to three weeks to see if there is anything else that is needed. SER appreciates the opportunity to assist you with this project and we look forward to serving any future needs that you may have. Sincerely, Svoboda Ecological Resources ~d-~ Franklin J. Svoboda, CWB, PWS Vice-President Ben Carlson Wetland Ecologist \ DATA SOURCES Minnesota Department of Natural Resources Protected Waters Inventory Map, Hennepin County. 1983. Soil Survey of Hennepin County. April, 1974 U.S.D.A. 159pp. plus appendices. United States Fish and Wildlife Service National Wetland Inventory Map -Excelsior Quadrangle. 1991. (Taken from May 1980 aerial photographs). Digital Orthophoto Quadrangle -Hennepin County, Section 22, Township 117N, Range 23W. USGS. April, 1991. LITERATURE REFERENCED Coward in, L.M., V. Carter, F.C. Go let, and R.T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. U.S. Fish and Wildlife Service, FWS/OBS-79/31. 103pp. Eggers, Steve D. and Donald M. Reed. 1997. Wetland Plants and Plant Communities of Minnesota and Wisconsin. US Army Corps of Engineers, St. Paul District. 263pp, unclassified. Environmental Laboratory. 1987. 1987 US. Army Corps of Engineers Wetlands Delineation Manual. Technical Report Y-87-1, US Army Engineer Waterways Experiment Station, Vicksburg, Mississippi. Gleason, H.A. and A.C. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. New York Botanical Garden, Bronx. 91 Opp. National Technical Committee for Hydric Soils. 1991. Hydric Soils of the United States. USDA Soil Conservation Service, Washington, D.C., Misc. Publication Number 1491. 1991. Sabine, B. J. 1999. National List of Plant Species that Occur in Wetlands: Region 3 -North Central (Indiana, Illinois, Iowa, Michigan, Minnesota, Missouri, Wisconsin). Resource Management Group, Inc. 77pp. Shaw, S.P., and C.G. Fredine. 1956. Wetlands of the United States. U.S. Fish and Wildlife Service, Circular 39. 67pp. FIGURES f I r J [ I r l r r f l l I l I I J I l I f l J ,~;,t svOBODA :,Wi~~Ecological Resources -Approximate Parcel Boundary 0.25 0.5 •• 560 Big Island Figure 1 i l ~ r 1 I ·1 f 1 f I 11 11 f j 11 u ll 11 I f l 1 National Wetland Inventory Overlayed on 2003 Aerial Photo -Approximate Parcel Boundary 0 I 200 JL1 C [ ;?o -,\ ,, ,. Feet , e.1 · ,. . ,;-· . : I \<,~,, w., s ., , Figure . ·._ ~ 60 ~ig ls i nd '4 . f l n f l fl 11 n II 11 l I f I 11 u l I l J 11 IJ l J ,~ , /.~_5VOBODA ik~ Ecological Resources Hennepin County Soil Survey Overlayed on 2003 Aerial Photo 0 ---- j:::::j Non-HydrlcSolls l2'L! HydricSolls -Approxi mate Parcel Boundary 250 500 Feet ---- w., s 560 Big Island Figure 3 [ I ~~ l l n [ l fl 11 n I J 11 l I 11 11 u LI 11 u LJ ~)~ l j ~i1.·~·?cYio9c~ 8£!s Mn/DNR Public Waters Inventory Hennepin County, Minnesota -App rox imate Parcel Boundary 0.5 ------M Iies 560 Big Island Figure 4 I l ~ rl II 11 r1 l l 11 11 11 Li l I 11 IJ Ll I f l J LI l I f \ :'i:~5VOBODA ~i, 'Ecological Resources GPS Wetland Boundary Overlayed on 2003 Aerial Photo * Sample Point Location --• 75 Foot Setback 0 GPS'd Wetland Boundary -Approximate Parcel Boundary 200 ---400 Feet 560 Big Island Figure 5 APPENDIX A SVOBODA ECOLOGICAL RESOURCES Wetlands Inventory & Delineation • Fisheries • Wildl!fe • Natural Communities Sile Name: 560 Big Island Dale: Basin\Arca: ..;B;;..t""ls'-'·i'-'n_l'--__________ _ Sample Point ID: lnvcsligalors: -'B::;..;;..P...;;C'--------------Community Type: Dis1urbc<l Condition'/ Y cs No v Nature of Disturbance: VEGETATION Dominants (':':.20% + basal or aerial coverage) September 14, 2004 SP 1-1 WET Type 3 -PEMF Non-dominants Species Stratum Indicator Status Species Stratum Indicator Status Carex lacustris (fj)V ST OBL Lae.ortea canadensis @v ST FACW Acer neg_undo H V sG) FACW-Tve.ha ang_usti£olia @v ST OBL H V S T Rhamnus cathartica H V@T FACU HVST Polvg_onum ame.hibium (WV ST OBL HVST HVST HVST HVST HVST HVST >50% of Dominants FAC or wetter? II' Y cs No >50% of Dominants FACW, OBL (FAC-neutral test) II' Yes No NIA Notes: Herbaceous, shrub, and tree species observed at sample location SOILS County Soil Survey Map Unit: Marsh II' Soil Series is on National Hydric Soil List ----------II' Arca mapped as depression or wet spot on Soil Survey Field Observations Hydric soil assumed because plants are OBL and FACW and wetland boundary is abrupt II' Mineral Soil II' Organic Soil Horizon/Depth 0-6" 6-12" 12-16" Matrix Color IOYR 2/1 IOYR 3/1 IOYR4/l Hydric Soil Present? II' Yes No Notes: *Iron Oxide Soft Mass (IOSM) Texture Organic (Hemic) Organic Loam Sand Undetermined Features Common/Distinct 7.5YR 4/4 Root Channels Common/Prominent 7.5YR 4/6 IOSM !Primary indicators (P) Secondary indicators (S) I HYDROLOGY Depth of sampling: 16 Inches Inundated, Depth of Water: (P) 7 Free water in borehole, Depth-f-ro_m_S-urfi_a_ce: Water Marks, Elevation: (P) Drift Lines or Sediment D-e-po-s-it-s (-P-) Hydrology Criterion Met? II' Yes No Other Observations: 12" II' Oxidized Root Channels in Upper 12 inches (S) II' II' Drainage Patterns in Wetlands (P) Water-stained leaves (S) Local Soil Survey Data (S) FAC -Neutral Test (S) WETLAND DETERMINATION Is the Sample Point in Wetland? Yes II' No Undetermined Distance from Delineated Edge: 10 ft. NIA Notes: Wetland edge based on vegetation, soils, and topographic line ;?(i J '')f~ «-~:~\ r:t~~ SVOBODA ECOLOGICAL RESOURCES Wetlands Inventory & Delineation • Fisheries • Wildl(le • Natural Communities Site Name: 560 Big Island flusin\Arca: ..::B;.;a;.;.:s;.;.i;.;.n...;I ___________ _ Investigators: ..:B:;:.:..P..::C;__ ___________ _ Disturbed Condition? Y cs Nature of Disturbance: No v' Date: Sample Point ID: Community Type: VEGETATION Dominants (c'..20% + basal or aerial coverage) September 14, 2004 SP 1-1 UP Upland Non-dominants Species Stratum Indicator Status Species Stratum Indicator Status Acer saccharum H V s(D FACU Tilia americana H VS (u FACU HVST Rhamnus cathartica H v@T FACU H VS T HVST H VS T HVST HVST HVST H VS T HVST HVST HVST >50% of Dominants FAC or wetter? Yes v' No >50% of Dominants FACW, OBL (FAC•ncutraI test) Yes v' No NIA Notes: Shrub and tree species observed at sample location SOILS County Soil Survey Map Unit: Hayden loam Soil Series is on National Hydric Soil List Arca mapped as depression or wet spot on Soil Survey Field Observations Hydric soil assumed because plants arc OBL and FACW and wetland boundary is abrupt _!:'.'.'.,_ Mineral Soil Horizon/Depth 0-1 O" 10-16" 16-24" Organic Soil Matrix Color l0YR 3/2 l0YR 3/1 l0YR 5/1 Texture Loam Clay Loam Sandy Clay Loam Hydric Soil Present? v' Yes No Undetermined Features Common/Distinct Depl., Few/Distinct IOSM Few/Distinct 2.5YR 5/6 IOSM, Carbonates Notes: *Iron Oxide Soft Mass (IOSM) !Primary indicators (P) Secondary indicators (S) I HYDROLOGY Depth of sampling: 24 Inches Inundated, Depth of Water: (P) Free water in borehole, Depth_f_ro_m_S_u-rfi-ace: Water Marks, Elevation: (P) Drift Lines or Sediment D-e-po-s-it-s -(P-) Hydrology Criterion Met? Yes v' No ----Other Observations: No free water observed within borehole Oxidized Root Channels in Upper 12 inches (S) Drainage Patterns in Wetlands (P) Water-stained leaves (S) Local Soil Survey Data (S) FAC -Neutral Test (S) WETLAND DETERMINATION Is the Sample Point in Wetland? Yes No v' Undetermined Distance from Delineated Edge: 10 ft. NIA Notes: Wetland edge based on vegetation, soils, and topographic line :4 1 APPENDIXB >\ '\ -1 '·:,;'jj;;/j r: .. · .~:-<·.)',& ,, /i;_) INDICATOR CATEGORIES* Obligate Wetland (OBL)-Occur almost always (estimated probability >99%) under natural conditions in wetlands. Facultative Wetland (FACW)-Usually occur in wetlands (estimated probability 67% -99%), but occasionally found in non-wetlands. Facultative (F AC) -Equally likely to occur in wetlands or non-wetlands (estimated probability 34%-66%). Facultative Upland (FACU)-Usually occur in non-wetlands (estimated probability 67% - 99%), but occasionally found in wetlands (estimated probability 1% -33%). Obligate Upland (UPL)-Occur in wetlands in another region, but occur almost always (estimated probability >99%) under natural conditions in non-wetlands in the region specified. If a species does not occur in wetlands in any region, it is not on the National List. *Reed, P.B. 1988. National list of plant species that occur in wetlands: Minnesota. National Wetlands Inventory, U.S. Fish and Wildlife Service, St. Petersburg, Florida. /7 fl r·: APPENDIXC Onicial Series Description -I-IA" r:N Series LOCATION HAYDEN Established Series Rev. ELB 05/1999 MU+ Ii\ HAYDEN SERIES Page I of 3 The Hayden series consists of deep well drained soils that formed in calcareous loamy glacial till on glacial moraines and till plains. These soils have moderate permeability. Their slopes range from 2 to 40 percent. Mean annual precipitation is about 28 inches, and mean annual temperature is about 46 degrees F. TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Glossic Hapludalfs TYPICAL PEDON: Hayden loam with a 6 percent convex slope on a terminal moraine in a deciduous forest. (Colors are for moist soil unless otherwise noted.) A--0 to 2 inches; very dark gray (l0YR 3/1) loam; weak fine granular structure; very friable; about 5 percent coarse fragments; neutral; abrupt smooth boundary. (1 to 4 inches thick) E--2 to 9 inches; dark grayish brown (l0YR 4/2) light loam; weak thin platy structure; very friable; few very dark gray (lOYR 3/1) worm casts in upper part; about 5 percent coarse fragments; slightly acid; clear wavy boundary. (0 to 12 inches thick) BE--9 to 14 inches; brown (l0YR 5/3) fine sandy loam; weak fine and medium subangular blocky structure; friable; many distinct coatings of clean sand and silt particles on faces of peds; about 5 percent coarse fragments; medium acid; clear wavy boundary. (0 to 8 inches thick) Btl--14 to 28 inches; yellowish brown (l0YR 5/4) loam; moderate fine and medium subangular blocky structure; firm; few faint coatings of clean sand and silt particles and few faint dark yellowish brown (1 0YR 4/4) clay films on faces of peds; about 5 percent coarse fragments; strongly acid; clear wavy boundary. Bt2--28 to 38 inches; yellowish brown (l0YR 5/4) loam; moderate fine and medium prismatic structure parting to moderate fine and medium angular blocky; firm; many distinct dark yellowish brown (1 0YR 4/4) clay films on faces of peds; about 5 percent coarse fragments; few prominent black clayey fillings in root channels; strongly acid; clear wavy boundary. Bt3--38 to 43 inches; yellowish brown (l0YR 5/4) loam; few fine prominent reddish brown mottles; moderate fine and medium prismatic structure; friable; few distinct dark yellowish brown (l0YR 3/4) clay films on faces of peds; about 5 percent course fragments; slightly acid; abrupt wavy boundary. (Combined thickness of Bt horizons is 12 to 30 inches.) C--43 to 60 inches; light olive brown (2.5Y 5/4) loam; few fine faint grayish brown (2.5Y 5/2) and light olive brown (2.5Y 5/6) mottles; massive; friable; and 5 percent coarse fragments; slight effervescence; mildly alkaline. TYPE LOCATION: Rice County, Minnesota; about 4 miles north of Faribault; 1,920 feet east and 30 http://ortho.ftw.nrcs.usda.gov/cgi-bin/osd/osdname.cgi?-P 9/14/2004 Orticial Series Description -I IA Yr '~N Series Page 2 of 3 feet north of the southwest corner of sec. I. T. 110 N., R. 21 W. RANGE IN CHARACTERISTICS: Solum thickness and depth to free carbonates range from 24 to 54 inches. Coarse fragments of mixed lithology comprise 2 to S-percent of the volume of the control section. The A horizon has hue of l 0YR, value of 2 or 3, and chroma of l or 2. The Ap horizon has value of 4 or 5 and chroma of l or 2 and value of 6 when dry. The E horizon has hue of l 0YR, value of 4 or 5, and chroma of l or 2. The A and E horizons typically are loam, silt loam, sandy loam, or fine sandy loam, but include clay loam, if eroded. They are neutral to medium acid. The Bt horizon has hue of 1 0YR in the upper part and 1 0YR or 2.SY in the lower part, value of 4 or 5, and chroma of 3 through 5. Mottles are present in the lower subhorizons in some pedons. It typically is clay loam or loam, but sandy clay loam is in parts in some pedons. The argillic horizon has 18 to 3 5 percent clay and 30 to 45 percent sand. It is slightly acid to strongly acid. Some pedons have a BC horizon. The C horizon has a hue of 1 0YR or 2.5Y, value of 4 or 5, and chroma of 3 through 6. It is loam or clay loam. It lacks mottles in some pedons. It has 15 to 25 percent calcium carbonate equivalent and is mildly or moderately alkalikne. COMPETING SERIES: These are the Amanda, Belmont, Belmore, Chenault, Chili, CoggQn, Conestog~, Douds, El Dara, Gallman, Grellton, Hebron, Hickory, High Gau, ~' Kalamazoo, Kanawha, Kendallville, Kidder, Kosciusko, LeRoy, Letort, Lindley, McHenry, Mandeville, Martinsville, Miami, Mifflin, Military, Nodine, Norden, Ockley, Owosso, Pecatonica, Princeton, Rawson, Relay, Renova, Richland, Riddles, Rockbridge, Roseville, Sisson, Strawn, Summitville, Teanaway, Theresa, Wawasee, Westville, Whalan, and Woodbine soils in the same family. Amanda horizon soils have more illite in the B and C horizon; Belmont soils have redder hue in the B horizon. Belmore, Chili, Kalamazoo, and Ockley soils formed in glacial outwash and have sandy or sandy- skeletal 2C horizons. Chenault soils have chert fragments in the solum and are Ul).derlaid by limestone bedrock. Coggon, Gallman, Hickory, Pecatonica, Renova, Riddles, Summitville, and Westville soils have thicker sola. In addition, Coggon soils have low chroma mottles in part of the B2 horizon. Conestoga, Kendallville, Letort, Richland, and Rockbridge soils have more coarse fragments. Douds, El Dara, Kidder, Sisson, and Wawasee soils have less clay and more sand or silt in the lower part of the B horizon and in the C horizon. High Gap, Hollinger, Mandeville, Mifflin, Military, Norden, Roseville, Whalan, and Woodbine soils have bedrock beginning between depths of 20 and 60 inches. Grell ton, Hebron, Lindley, and Rawson soils have more silt or clay or both in either the lower part of the B horizon or C horizon or both. Kanawha soils are formed in alluvium from acid shale and are in an area of higher rainfall. LeRoy and Strawn soils have thinner sola. McHenry and Miami soils have more silt or clay, or both in the upper part of the sol um. Martinsville soils have redder hue in the B horizon and formed in stratified outwash or lacustrine sediments. Nodine soils have thicker sola which is more stratified and leached of free carbonates to greater depths. Owosso soils have more sand and less silt or clay in the upper part of their sola. Princeton soils formed in aeolian sediments and have stratified C horizons. Relay soils have hue of2.5Y or SY in all parts of the B horizon. Teanaway soils have firm sandy clay loam C horizons with redder hue. Theresa soils formed partly in loess and have 2C horizons with 40 to 60 percent calcium carbonate. GEOGRAPHIC SETTING: Hayden soils have plane or convex slopes on gently undulating through steep glacial moraines of the Des Moines and Grantsburg sublobe of the Late Wisconsinan glaciation. Their slopes range from 2 to 40 percent and mostly are 80 to 300 feet in length. These soils formed in calcareous loamy glacial till. Montmorillonite is the dominant clay mineral in the glacial till. Mean http://ortho.ftw.nrcs.usda.gov/cgi-bin/osd/osdname.cgi?-P 9/14/2004 Official Series Description -HA' SN Series Page 3 of 3 annual temperature is 45 to 50 degrees, and mean annual precipitation is 27 to 33 inches. GEOGRAPHICALLY ASSOCIATED SOILS: These are the Ames, Dundm;, Hamel, L_uJhs!r, and Nessel soils which are members of a toposequence with the Hayden soils. Moderately well drained Nessel soils have plane or slightly convex slopes. Poorly drained Ames and Dundas soils have slightly concave to slightly convex slopes with gradient of less than 2 percent. Poorly drained Hamel soils are on toe slopes. Organic soils are common associates in some places. DRAINAGE AND PERMEABILITY: Well drained. Runoff is medium and rapid. Permeability is moderate. USE AND VEGETATION: Mostly cleared and cultivated to corn, soybeans, small grain, and hay. Native vegetation was deciduous forest of maple, basswood, oak, and elm. DISTRIBUTION AND EXTENT: Southeastern Minnesota and in central Iowa. Extensive. MLRA OFFICE RESPONSIBLE: St. Paul, Minnesota SERIES ESTABLISHED: Hennepin County, Minnesota, 1929. ADDITIONAL DATA: Refer to Minnesota Agricultural Experiment Station Central File Code No. 967 for results of some laboratory analysis of the typical pedon. National Cooperative Soil Survey U.S.A. http://ortho.ftw.nrcs.usda.gov/cgi-bin/osd/osdname.cgi?-P 9/14/2004 - 0$-?ley complex, 12 to 18 percent slopes (KnD).-- • ·,se hllly soils occupy 5-acre to 20-acre, irregu- . , areas on knolls and on sides of hills and 1~~ges. In most places slopes are 75 to 150 feet p g In the few cu 1 ti va ted areas, the surface 1 • rer is very dark grayish brown. Near slope crests v patches of the dark reddish-brown subsoil have =~~ exposed by erosion. These eroded patches con- in many pebbles and cobb 1 es tones on the surface. . , eroded areas are low in organic-matter content ~~ fertility and are more difficult to till. About 45 to 75 percent of this complex has a profile simi- r to that described as representative for the ,gsley series, about 10 to 30 percent is underlain by sand and gravel at a depth of 24 to 40 inches, and about 10 to 15 percent consists of sandy soils at have a subsoil of friable, yellowish-brown ndy loam or loamy sand underlain by sand and grav- ei at a depth of 12 to 24 inches. Included in mapping were many places in drainage- , fS that contain 2 to 3 feet of sandy material shed in from the surrounding slopes. A few shal- ww depressions were included that contain mostly deep, permea½le, silty soils. A few of these de- essions .are wet. These minor inclusions comprise 3 ut 5 to 10 percent of the complex. Most of these soils are in woodland and pasture. Toe main management needs are controlling erosion --d maintaining fertility. The erosion hazard is vere. In most areas slopes are too irregular to ~vntour farm or terrace. It is difficult to operate fann machinery on these moderately steep slopes. · In ,--st places this complex is well suited to uses that ep the soil covered with plants. In areas where ~-osion can be controlled, row crops can be grown occasionally. (Capability Wlit VIe-1; woodland =oup 2; building site group 4) Kingsley.complex, 18 to 24 percent slopes (KnE) .--These steep soils occupy hills and ridges ~~d, in most places, lie near large depressions. eas are irregular and commonly are between 5 and acres in size. Slopes are mostly 75 to 200 feet long and extend in several directions. About 45 to 7~ percent of this complex has a profile similar to at described as representative for the K°ingsley ries, about 10 to 30 percent is \lllderlain by sand and gravel at a depth of about 24 to 40 inches, and .ahout 10 to 15 percent consists of sandy soils that ve a subsoil of dark yellowish-brown sandy loam ss than 2 feet thick over sand and gravel. Included in mapping were small spots of Nymore soils, In some places, near the base of the slopes, •ere is 2 to 3 feet of loamy sand that has been ,. ,shed in from the slopes above. These soils are too steep for operation of most modern farm equipment and are too easily eroded to ow cultivated crops. They are well suited to odland or pasture or to recreational and wildlife . uses. (Capability unit VIIe-1; woodland group 2; 1 building site group 4) Kingsley complex, 24 to 35 percent slopes (KnF) .--These very steep soils occupy high hills and ridges. Slopes are mainly 75 to 200 feet long and extend mainly in one direction. About 45 to 75 per- cent of this complex has a profile similar to that described as representative for the Kingsley series, about 10 to 30 percent is underlain by sand and gravel at a depth of about 24 to 40 inches, and about 10 to 15 percent consists of sandy soils that have a <lark yellowish-brown sandy loam subsoil that is less than 2 feet thick over sand and gravel. In places, small spots of Nymore soils were in- cluded. In some places near the base of the slopes, there is 2 to 3 feet of loamy sand that has been washed in from the slopes above. Most areas of these soils are in woodland. The very steep slopes are a severe limitation to farm and urban uses. These soils are well suited to enhancement of the natural beauty of the area, wild- life habitat, and recreational uses. (Capability unit VIIe-1; woodland group 2; building site group 4) Lake Beaches These miscellaneous land types are Lake beaches, sandy, and Lake beaches, loamy, Lake beaches, sandy (Le) .--This land type con- sists of poorly drained, gravelly and sandy materi- als around the shoreline of lakes and sloughs. The soil material is sandy and was deposited through wave action. Areas are mostly 20 to 80 feet wide. The native vegetation consisted of reeds, sedges, and willows. · the soil.material is variable, but it ~s general- ly dark ·colored in the surface layer· and is light sandy.loam, coarse loamy sand, or coarse sand.to a ·depth of 30 to 60 inches. Most areas are Wlderlain by ca1c·areous loamy till .. Drainage ranges from poor to very: poor. 1n most seasons the water table is within a 4-foot depth. In years of high_rainfall, some areas are submerged. Reaction ranges from slightly alkaline to neutral. This land type is too graveliy and sandy and too low in fertility to be. productive as farmland. ( Ca- pability unit VIw-1; woodland group 6; building site group 9) Lake beaches, loamy (Ld) .--This land type con- sists of deep, poorly drained or very poorly drain- ed, loamy or silty soil material deposited along the shoreline of lakes and sloughs. The soil material is loamy sediments and was deposited through wave action on the shores of lakes and former lakes. The native vegetation was reeds, sedges, and willows, The soil material is variable, but the surface layer generally is black loam or silt loam 20 to 48 inches thick. The underlying material is calcareous gray loam. A few patches that have a surface layer of sandy loam were included in mapping . Most areas of this land type are undrained. The water table is usually within a 3-foot depth. Be- cause the areas are around lakes and sloughs, ade- quate outlets are generally lacking. A few areas are drained and farmed with the associated bog 49 ~ ... county. The native vegetation was tall prairie grass and scattered patches of oaks. In a representative profile, the surface layer is very dark grayish-brown loamy fine sand about 9 inches thick. The subsoil, about 24 inches thick, consists of alternating layers of dark grayish- brown, dark-brown, and dark yellowish-brown fine sand, loamy fine sand, and fine sandy loam. The underlying material is yellowish-brown and light olive-brown fine sand or sand that contains many, large, grayish-brown mottles. Litchfield soils have low available moisture capacity and medium to rapid internal drainage. They are rapidly penneable. The water table is at a depth of 3 to 5 feet during wet seasons. This somewhat improves the supply of moisture to plants. Roots develop rapidly and grow deep. The surface layer is easily blown. The organic-matter content is moderate, and the natural fertility is low. Representative profile of Litchfield loamy fine sand, in a cultivated field, NWl/4 NEl/4 NWl/4 sec. 20, T. 119 N., R. 21 W.: Ap--0 to 9 inches, very dark grayish-brown (lOYR 3/2) loamy fine sand; fine reticulate inclu- sions of dark grayish brown (lOYR 4/2) and brown (lOYR 4/3); cloddy; common fine roots; medium acid; clear, abrupt boundary. B1--9 to 15 inches, dark grayish-brown (lOYR 4/2) and brown (lOYR 4/3) loamy fine sand and fine sand; few, fine, distinct, grayish-brown (2.5Y 5/2) and dark yellowish-brown (lOYR 3/4) mot-· tles; weak, fine and medium, subangular blocky structure; common roots; mediwn acid;.· clear, abrupt boundary. B2lt~-15 to 24 inches, dark-brown (lOYR 3/3) and dark yellowish-brown · (lOYR 3/4) fine sandy loam; many, medium, prominent, grayish-brown (2.SY 5/2) mottles and faint, dark· yellowish- brown (lOYR 4/4) mottles; weak, medium and coarse, subangular blocky structure; very fri- able; few roots; many, very fine, tubular pores; few, thin, patchy clay films on faces of peds; medium acid; clear, smooth boundary. B3--24 to 33 inches, dark yellowish-brown (lOYR 4/4) sand; many, medium and large, prominent, grayish-brown (2.5Y 5/2) mottles and common, fine and medium, prominent, yellowish-brown (lOYR 5/8) mottles; weak, coarse, subangular blocky structure; friable; weakly cemented; few roots; medium acid; clear, smooth boundary. Cl--33 to 38 inches, yellowish-brown (lOYR 5/4) fine sand; common, large, prominent, grayish-brown (2.5Y 5/2) mottles and faint yellowish-brown (lOYR 5/8) mottles; massive; very friable; medium acid; clear, smooth boundary. C2--38 to 60 inches, light olive-brown (2.5Y 5/4) sand; many, medium and large, prominent, yellowish-brown (lOYR 5/8) mottles and faint, grayish-brown (2.5Y 5/2) mottles; single grain; loose; medium acid. The Ap horizon is very dark brown or very dark grayish brown. In places the A horizon is 12 to 14 56 inches thick. The Band C horizons consist of al- ternating strata of fine sand to sand, loamy fine sand, loamy sand, fine sandy loam, loam, silt loam, and light clay loam. The strata of silt loam, loam, and light clay loam are less common and are thinner than the strata of sandy loam and fine sandy loam. The combined thickness of the bands of fine sandy loam or finer within a 40-inch depth ranges from 4 to 12 inches but is commonly 5 to 9 inches. These bands occur·mainly at a depth between 15 and 48 inches. Some areas have weakly cemented horizons. The C horizon is dominantly grayish brown in color but ranges from dark grayish brown to light olive brown. Reaction of the solum ranges from strongly acid to medium acid. These soils, as mapped in Hennepin County, have a thinner, darker colored A horizon and contain more medium and coarse sand than the defined range for the Litchfield series. However, these differences do not alter the usefulness and behavior of these soi ls. Litchfield soils have finer sand and have finer textured layers in the Band C horizons than associ- ated Duelm soils. They lack the continuous, thick, loamy C horizon of the similar Duelm loamy sand, loamy subsoil variant. Litchfield soils are browner and not so mottled throughout as the associated Das- sel soils. Litchfield soils are mottled in the B horizon, but Rasset soils are not. They also lack the shaly layers that are present in the associated Rasset soils. • Litchfield loamy fine sand (Lu).--This nearly level soil occurs on broad flats and slight rises, mainly within areas of Dassel soils. A few areas lie in narrow drainageways below Anoka soils. Areas range in size from 2 to about 120 acres. · Included in mapping were small areas of soils that have a sandy loam, loam, and silt loam surface layer. Areas of soils that have a silt loam surface layer and subsoil that extend to a depth of 18 inches to about 25 inches were also included. Small, scattered depressions contain areas of Biscay clay loam, depressional, or Kennebeck soils. Most areas of this soil are in cropland. The hazards of drought and soil blowing are severe. Corn and soybean growth is limited by drought in most years unless rainfall is timely. This soil is good to fair for small grain and is well suited to specialty crops, such as irrigated potatoes. (Ca- pability unit IIIs-1; woodland group 3; building site group 2) Marsh Marsh (Ma) consists of shallow lakes and ponds that contain reeds, sedges, and other aquatic vegetation. Most areas are wet all year long, and the soil material is too wet to be classified. Most areas occur as borders around lakes or along streams and rivers and are unfeasible to drain. This land type consists mostly of areas of deep Peaty muck. Areas of Peaty muck over loam, Peaty t over sand, Glencoe soils, and a dcpresslonal 111 -0 soil also occur. I In some areas wild hay can be cut along the marshy dges. Most areas are poor for pasture. Marsh is e. 1 suited to providing food and cover for certain w es of wildlife. (Capability unit VlIIw-1; wood- ~and group 7, building site group 12) Minnetonka Series The Minnetonka series consists of deep, poorly d :ined soils that formed in 30 to 60 inches of cal- c eous, clayey sediments. In most places a 2-foot tu 3-foot layer of silty sediments lies between the clayey sediments and the underlying loamy till. 1 :se soils are on broad flats and in drainageways. 1 i native vegetation was prairie grass encroached upvn by mixed hardwoods. There are a few stones and boulders, mainly near the surface. These soils oc- c iy scattered tracts and are associated mainly with 1 i Lester, Hayden, and Shorewood soils. In a representative profile, the surface layer is black si-1 ty clay loam about 13 inches thick. The 1 ·,soil is mostly firm, olive-gray silty clay about . inches thick. The underlying material is cal- careous, olive-gray silty clay loam. Minnetonka soils have high available moisture ca- r ;ity, slow internal drainage, and slow permeabil- : ., . The water tab le is at a depth of 1 to 3 feet ~~ring wet periods. The root zone is limited by the high water table. The organic-matter content and · r-tural fertility are high. Representative profile of Minnetonka silty clay ~-am, in a cultivated field, SEl/4 NEl/4 NEl/4 sec. 33, T. 118 N., R. 23 W., Orono village: , --0 to 8 inches, black (l0YR 2/1) light silty clay loam; weak, very fine, subangular blocky struc- ture; friable; many roots; slightly acid; clear, smooth boundary. ·• 2--8 to 13 inches, black (l0YR 2/1) heavy silty clay loam; lower part of the horizon contains patches and thin seams of gray (l0YR 5/1); moderate, very fine, subangular blocky struc- ture; friable; many roots; slightly acid; clear, smooth boundary. Bltg--13 to 18 inches, very dark gray (l0YR 3/1) silty clay intermingled with olive gray (SY 4/2); strong, very fine, subangular blocky structure; firm; few roots; few, fine, tubular pores; common, thick, black (l0YR 2/1) and very dark gray (l0YR 3/1) clay films on faces of peds; slightly acid; clear, smooth bound- ary. B21tg--18 to 25 inches, olive-gray (SY 4/2) silty clay; weak, fine, prismatic structure parting to strong, very fine, subangular blocky; firm; few fine roots and pores; many, thick, black ( l0YR 2/1) and very dark gray ( lOYR 3/1) clay films on faces of peds and in root channels; slightly acid; clear, s_mooth boundary. :2tg--25 to 31 inches, olive-gray (SY 5/2 and SY 4/2) silty clay; few, fine, distinct, olive (SY S/6) mottles; weak, medium, prismatic structure; firm; few fine roots; common, fine, tubular pores; many, thick, black (l0YR 2/1) and very dark gray ( l0YR 3/1) clay films on faces of peds and in root channels; neutral; clear, smooth boundary. B3tg--31 to 35 inches, olive-gray (SY 5/2) silty clay loam; few, fine, distinct, olive (SY S/6) mottles; weak, very fine, subangular blocky structure; friable; few, fine, tubular pores; few, medium, very dark gray (l0YR 3/1) and black (l0YR 2/1) clay films on faces of peds and in root channels; neutral; clear, smooth boundary. Clg--35 to 40 inches, olive-gray (SY 5/2) silty clay loam; common, fine, prominent, olive (SY 5/6) mottles; moderate, very fine, subangular blocky structure; friable; few, thin, black (l0YR 2/1) clay films in root channels; common, fine, light-gray lime concentrations; few black concretions; mildly alkaline; strongly calcareous. C2g--40 to 60 inches, olive-gray (SY 5/2) silty clay loam; few thin strata of very fine sandy loam; common, fine, prominent, yellowish-brown (lOYR 5/6) mottles that increase in size and abtm- dance with increasing depth; weak, coarse, subangular blocky structure parting to weak, very fine, subangular blocky structure; fri- able; common, fine, light-gray lime concentra- tions; mildly alkaline; strongly calcareous. A thin, distinct A2 horizon that dries to gray or gl'.ayish brown occurs in some places. The B horizon is typically olive gray but ranges from dark gray to olive and light olive brown. The zone of maximum clay content in the B2 horizon ranges from silty clay to clay. The C horizon is olive gray or light olive gray and is variable in texture. It ranges from heavy silty clay loam or silty clay-to silt loam or light silty clay loam or to clay loam or loam glacial till . The glacial· .till occurs within a depth of 10 feet in mo~t places. Reaction of the A horizon ranges from ~lightly acid to neutral, and reaction of the B horizon ranges from medium acid to neutral. Depth to lime carbonates ranges from 26 to 40 inches. · Minnetonka soils have a finer textured B horizon than the similar Cordova soils. They have a thicker, darker colored A horizon than associated·Shields soils. . Minnetonka silty ·clay loam (Mt) . --This· nearly level soil is in broad tracts up to about 100 acres in size and in shallow drainageways. Included in mapping were small rise·s of Shorewood and Le Sueur soils. In a few places the underlying material is made up of layers of sand, silt, and clay. . The main needs of management are drainage and maintenance of soil tilth. This soil can be drained, but tile must be spaced rather closely to insure good drainage. A good tile outlet is impor- tant. If properly drained and managed, this soil is 57 I PHOTO LOG f l Fl 11 fl f l 11 r I 11 I l J 11 11 I J I J u lJ IJ u PHOTO 2: Image of sample point location. Photo taken in September, 2004. PHOTO 1: Image of Basin 1 edge facing northeast from west central edge of the basin. Photo taken in September, 2004. Vegetation along the edge mainly lake bank sedge, cattail, common buckthom. and sugar maple . Note rather steep slopes. PHOTO 3: Image of Basin 1 facing north from Lake Minnetonka. Photo taken in September, 2004. Basin dominated by cattail species. PHOTO LOG OF SITE \I; I 'Mi~SVOBODA ~{!fe; Ecological Resources , ... ;, '•/ 560 Big Island -Orono Wetland Delineation Page I of 1