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NND O Im -0 Z 0 m cc CD i r/ Z a s X3 o mCn C t0 • • Name and Address of Local Government Unit: City of Oak Park Heights Mr. Eric Johnson 14168 Oak Park Boulevard Oak Park Heights, MN 55082 -2007 WCA Agent Bonestroo Ben Meyer 2335 West Highway 36 St. Paul, MN 55113 Name of Applicant: City of Oak Park Heights Project Name: City Hall Site Application Number: 55 -08154 Type of Application (check one): ❑ Exemption Decision ❑ No Loss Decision ❑ Replacement Plan Decision ❑ Banking Plan Decision ® Wetland Type/Boundary Decision Date of Decision: October 28, 2008 Check One: ® Approved ❑ Approved with conditions ❑ Denied Summary of Project/Decision: Wetland delineation performed on the City Hall property on July 7 and September 5, 2008. Field reviewed by Jyneen Thatcher on September 26 2008 See attached report for details. List of Addressees: Landowner: City of Oak Park Heights Members of Technical Evaluation Panel: MN Board of Water and Soil Resources Washington Conservation District Lynda Peterson Jyneen E. Thatcher 520 Lafayette Road North 1380 W Frontage Rd, Highway 36 St. Paul, MN 55155 Stillwater, MN 55082 OPH City Hall Site Notice of WCA Decision.doc - Page 1 of 2 10/28/08 Watershed District or Watershed Management Organization (If Applicable): Middle St. Croix WMO Amy Carolan 1380 W Frontage Rd, Highway 36 • Stillwater, MN 55082 Department of Natural Resources Regional Office: DNR Ecological Services Section Wayne Barstad 1200 Warner Road St. Paul, MN 55106 Corp of Engineers Project Manager @ Department of the Army, Corps of Engineers, St. Paul District Dan Seemon 190 Fifth Street East St. Paul, MN 55101 -1638 Individual members of the public who requested a copy, summary on1X City Engineer, Oak Park Heights Dennis Postler Bonestroo 2335 W. Hwy 36 St. Paul, MN 55113 You are hereby notified that the decision of the Local Government Unit on the above- • referenced application was made on the date stated above. Pursuant to Minn. R. 8420.0250 any appeal of the decision must be commenced by mailing a petition for appeal to the Minnesota Board of Water and Soil Resources within thirty (30) calendar days of the date of the mailing of this Notice. THIS DECISION ONLY APPLIES TO the Minnesota Wetland Conservation Act. Additional approvals or permits from local, state, and federal agencies may be required. Check with all appropriate authorities before commencing work in or near wetlands. LOCAL GOVERNMENT UNIT City of Oak Park Heights October 28, 2008 Signature �� Date Benjamin L. Meyer, WCA Agent — City of Oak Park Heights Name and Title 67,-- - Page 2 of 2 OPH City Hall Site Notice of WCA Decision.doc 10/28/08 • CITY OF OAK PARK HEIGHTS WETLAND DELINEATION REPORT CITY HALL SITE CITY OF OAK PARK HEIGHTS October 28, 2008 Project Number: 000055-08154 • 'A CITY OF OAK PARK HEIGHTS - CITY HALL • Table of Contents Tableof Contents ...................................................................................................................... ..............................1 Introduction.............................................................................................................................. ..............................2 Methods................................................................................................................................... ..............................2 Results...................................................................................................................................... ..............................3 Conclusion............................................................................................................................... ............................... 5 Figures...................................................................................................................................... ..............................6 Figure 1 — Project Location Map Figures 2 — National Wetlands Inventory Figures 3 — Washington County Soil Survey Figures 4 — Delineated Wetland Boundaries Appendix A Wetland Delineation Data Forms Washington Conservation District Letter City of Oak Park Heights Project No.- 55 -08154 City Hall � Bonestroo IL 0 • CITY OF OAK PARK HEIGHTS — CITY HALL Introduction This report is prepared for the City of Oak Park Heights to identify wetlands on city -owned property for planning purposes for the construction of a new city hall building. The project area includes the existing city hall property and a large parcel to the north. The site is located in the NW 1/a of Section 4, Township 29N, and Range 20W in Washington County, MN. The field investigation for this wetland delineation was completed on July 7, 2008. This delineation report provides the required documentation for wetland boundary determinations in conformance with the Minnesota Wetland Conservation Act and Section 404 of the Clean Water Act. Methods Preliminary Investigation: The National Wetlands Inventory (NWI) was examined with the 2007 aerial photograph to identify potential wetlands on the site (Figure 2). Two NWI wetlands were listed within the project area. The Washington County Soil Survey was examined to determine additional areas of potential wetlands (Figure 3). Auburndale silt loam is the hydric soil series located on the site. Hydric soils are good indicators of wetlands. Four jurisdictional wetlands were identified and delineated within the project area (Figure 4). Wetland Delineation: Wetlands were identified using standard delineation methodology described in the 1987 Army Corps of Engineers (COE) Wetland Delineation Manual as required by both the Minnesota Wetland Conservation Act • and Section 404 of the Clean Water Act. To verify a site is wetland, three technical criteria are examined and documented. A combination of the hydric soil, hydrophytic vegetation, and hydrology criteria defines wetlands as described in the National Food Security Act Manual (Soil Conservation Service, 1994) and the Corps of Engineers Wetlands Delineation Manual (Environmental Laboratory, 1987). Therefore, an area that meets the hydric soil criteria must also meet the hydrophytic vegetation and wetland hydrology criteria in order for it to be classified as a jurisdictional wetland. • A hydric5od is a soil that formed under conditions of saturation, flooding or ponding long enough during the growing season to develop anaerobic conditions in the upper part. The concept of hydric soils includes soils developed under sufficiently wet conditions to support the growth and regeneration of hydrophytic vegetation. Soils that are sufficiently wet because of artificial measures are included in the concept of hydric soils. Also, soils in which the hydrology has been artificially modified are hydric if the soil, in an unaltered state, was hydric (USDA, NRCS 1999). A hydric soil list provided by the National Technical Committee for Hydric Soils (NTTCHS) and the County Soil Survey was used to determine the potential locations of hydric soils for this site. Hydrophytic vegetation is defined as the sum total of macrophytic plant life that occurs in areas where the frequency and duration of inundation or soil saturation produce permanently or periodically saturated soils of sufficient duration to exert a controlling influence on the plant species present. Plant species within the wetland /upland ecotone were recorded as to their percent cover and wetland indicator status according to the National List of Plant Species that occur in wetlands; North Central Region 3 (USFWS Biological Report 88, 26.3; May 1988). City of Oak Park Heights A Project No: 55 -08154 City Hall 15 Bone5$roo I The term wet /andhydro%gyencompasses all hydrologic characteristics for areas that are periodically inundated or have soils saturated to the surface at some time during the growing season. COE hydrology criteria consist of inundation or saturation to the surface for at least 5% of the growing season in most years. Areas with evident characteristics for wetland hydrology are those where the presence of water has an overriding influence on the characteristics of vegetation and soils (COE Delineation Manual, 1987). Soils, vegetation, and hydrology were documented at representative transect locations along the wetland edge. At each transect, the first plot was placed in an area that met the criteria to be a jurisdictional wetland. Subsequent plots were placed upslope until jurisdictional wetland criteria were not met. At least one upland plot and one wetland plot are documented on the Routine Wetland Delineation Data Form filled out for each transect. In some cases, additional plots were needed to clearly establish wetland boundaries. Transect and plot locations are shown on Figure 4. Plant species cover was based on the percent aerial coverage visually estimated within a 30 -foot radius of the plot for the sapling and shrub layers and a 5 -foot radius for the herbaceous layer within the community type being sampled. Estimate of basal area for dominant trees was determined by using a 10 -factor prism. Total vegetation dominance for all strata was determined using the "50/20 rule" (COE Delineation Manual, 1987). Soils observations were made immediately below the A- horizon. Primary and secondary hydrology indicators were generally evaluated to a depth of 16 inches. Wetland boundaries were marked using a combination of 3 foot pin flags and pink flagging at eye level labeled "wetland boundary" and surveyed using a Trimble PROXH sub -foot GPS unit. Results Wetland A This is a Type 3 wetland that consists of a cattail dominated shallow marsh community fringed by a wet meadow community. Vegetation at the wetland pit was dominated by reed canary grass. Vegetation at the upland pit was dominated by reed canary grass and common buckthorn. In the wetland pit, saturated soil was encountered at 6 inches below the surface. The wetland appears to receive most of its hydrology from surface drainage. The wetland soils were a 10YR 3/1 with mottles with a sandy clay loam texture. The upland soils consisted mainly of fill with a loamy sand texture and 10YR 4/3 in color. Wetland criteria for soils and hydrology were not met at the upland pit. The wetland boundary primarily follows a distinct topographic break. Wetland 6 This is a Type 2/3 wetland composed of shallow marsh dominated by cattail with a fresh (wet) meadow fringe. Vegetation at the wetland pit was dominated by reed canary grass and Canada bluejoint. Vegetation at the upland pit was dominated by grey dogwood and red and black raspberry and an aspen forest on the north side. In the wetland pit saturated soils were observed at 13 inches. The wetland receives all of its hydrology from surface drainage. In the upland pit primary hydrology indicators were not observed. The wetland boundary primarily follows a vegetative break between reed canary grass in the wetland and grey dogwood and raspberry in the upland. A topographic break is also present along the boundary. a City of Oak Park Neigh t5 a Project No: 55 -08154 City Hall Bonestrron • • Wetland C This is predominantly a Type 7 wetland dominated by green ash saplings with a fringe of larger trees. There are also areas of wet meadow dominated by reed canary grass and a small seasonally flooded mud flat area. Vegetation at the wetland pit was dominated by green ash and bare ground. Vegetation at the upland pit was dominated by common buckthorn. Hydrology was not observed, although there was evidence of drift lines and high water marks on trees. The wetland receives all of its hydrology from surface drainage. In the upland pit primary hydrology indicators were not observed. The wetland boundary primarily follows a vegetative break between green ash in the wetland and buckthorn in the upland. A topographic break is also present along the boundary. Wetland D This is also a Type 1 wetland composed of a seasonally flooded area dominated by Bidens frondosa and a lack of trees. The upland is dominated by aspen and buckthorn. Although saturation and inundation were not observed, there were water stained leaves and dominance of FACW species. The wetland receives all of its hydrology from surface drainage. In the upland pit primary hydrology indicators were not observed. The wetland boundary primarily follows a vegetative break between FAC or wetter species in the wetland and upland tree species. A topographic break is also present along the boundary. See Appendix A: Wetland Delineation Data Formsfor more information on each wetland. City of Oak Park Heights Project No: 55 -08154 City Hall A,, Bonestroo nIT • Conclusion The procedures followed for this Wetland Delineation Report are in accordance with the 1987 Federal Manual for Identifying and Delineating Jurisdictional Wetlands. This delineation describes conditions for narrowly defined periods of time. Four jurisdictional wetlands were identified within the project area. If unavoidable impacts are proposed for the wetland, permits or exemptions must first be obtained from the proper agencies. These could include: Local Governmental Unit (City), State (DNR), Federal (Army Corps of Engineers), and /or other applicable entities. BON ESTR00 Benjamin L. eyer MN Wetland Delineator, Certified #1032 Date • City of Oak Park Heights Project No: 55 -08154 City Hall Bonestroo • • FIGURES City of Oak Park Heights Project No: 55 -08154 CityHaii Bonestroo PROJECT LOCATION - USGS FIGURE 1 CITY OF OAK PARK HEIGHTS 0 2D00 N CITY HALL PROPERTY Scale in feet i /�9G\GgnQl n-r A..... oa onna D on(estll o© NATIONAL WETLANDS INVENTORY OF OAK PARK HEIGHTS CITY HALL PROPERTY v -\rr�nalrMD--- M -1;, A- 0 200 Scale in feet,,, FIGURE 2 1fr&* (o na5it oo 5 �'# a � a '#�• .�. Y� T. ���. 4F Ax h SOILS LEGEND 15313 - Santiago silt loam, 2 -6% slopes 1£9 - Auburndale silt loan-i (Hydric) 265 - Freer silt loam 34213 - Kingsley sandy loam. 2 -6% 31112C - Kingsley sandy loam. G -12% 86 IC Urban land -Kin.gsley coy piex. 3 -15" WASHINGTON COUNTY SOIL SURVEY FIGURE 3 CITY OF OAK PARK HEIGHTS 0 200 CITY HALL PROPERTY Scale in feet " t o nine° strew V-�GG\CGnQ9 CZ In n A nnI i— G- 1 IA /-+[, A n-l;. 4,.,., oa onno • APPENDIX A WETLAND DELINEATION DATA FORMS • City of Oak Park Heights Project No. , 55 -08154 City Hall Bonestroo 0 • is Project: Oak Park Heights Citv Hall Basin : A © This site is a jurisdictional wetland Comments Transect I»forntation Transect # 1 Normal Conditions: 0 Atypical Situation: ❑ Problem Area: ❑ Date: 7/7/2008 Date 2: Wetland Vegetation Present: Hydric Soils Present: Hydrology Present: Comments Cattail marsh with reed canary grass fringe. Upland soils fill on north and east side. Pit Descriptions Indicator Status Pit #: 1 to 50/20 Vezetation Wetland Vegetation Present? Scientific Name Common Name Acer saccharinum Silver maple Phalaris arundinacea Reed canary grass Potentilla simplex Common cinquefoil Salix nigra Black willow Typha angustifolia Narrow - leaved cat -tail % of dominant species that are 100 OBL, FACW or FAC in Pit: H Hvdroloev Hydrology Present 0 Investigator: BLM Cowardin: PEMC NWI Mapped: PUBG /PEMB Topographic Setting: Isolated Depression Aerial Photo Year: 2007 Gauge: ❑ Dominant According Stratum Indicator Status % Cover to 50/20 T FACW 50.00% 0 -5 10YR 4/2 H FACW+ 100.00% 0 H FACU- 0.00% ❑ T OBL 30.00 %p H OBL 10.00% ❑ Depth of Surface Water Depth to Free Water Depth to Saturated Soil N/A 11 inches 6 inches Hydrology Primary Indicators Hydrology Secondary Indicators Hydrologic Alterations Saturated in upper 12 inches FAC - neutral test Topography /Landscape Positio Soil Hydric Soils Present: 0 Map Symbol: 189 Depth (in) Matrix Color Mottle Color Mottle Quantity Mottle Contrast Texture 0 -5 10YR 4/2 10YR 3/4 common 2 -20% distinct Sandy loam 5 -17 10YR 3/1 10YR 3/3 common 2 -20% distinct Sandy clay loam Hydric Soil Indicator: Chroma of 1 with or w/o Mottle Pit #: 2 Indicator Status Veeetation Wetland Vegetation Present? SO Scientific Name Common Name Acer saccharinum Silver maple Bromus inermis Smooth brome Juglans cinerea Butternut Parthenocissus quinquefoli Virginia creeper Phalaris arundinacea Reed canary grass Potentilla simplex Common cinquefoil Rhamnus cathartica Common buckthorn Salix nigra Black willow % of dominant species that are 75 OBL, FACW or FAC in Pit: H Wdroloev Hydrology Present ❑ Dominant According Stratum Indicator Status % Cover to 50!20 T FACW 50.000/0 B H UPL 5.00% ❑ S FACU+ 5.00% ❑ H FAC 5.00% ❑ H FACW+ 85.00% H FACU- 2.00% ❑ S FACU 30.00% T OBL 30.00% Depth of Surface Water Depth to Free Water Depth to Saturated Soil Hydrology Primary Indicators Hydrology Secondary Indicators Hydrologic Alterations Soil Hydric Soils Present: ❑ Map Symbol: 189 Depth (in) Matrix Color Mottle Color Mottle Quantity Mottle Contrast Texture 0-8 10YR 4/3 Loamy sand FILL FILL Hydric Soil Indicator: is • 0 :7 • 7 Project: Oak Park Heights City Hall Basin : B Date: 7/7/2008 Investigator: BLM © This site is a jurisdictional wetland Date 2: Transeet Information Indicator Status Transect # 1 to 50/20 Normal Conditions: © Wetland Vegetation Present: © Cowardin: PEMC Atypical Situation: ❑ Hydric Soils Present: © NWI Mapped: PSS1B Problem Area: ❑ Hydrology Present: © Topographic Setting: Isolated Depression Canada thistle Aerial Photo Year: 2007 Comments Gauge: ❑ Shallow marsh wetland dominated by cattail with a fringe of reed canary grass and Cananda buejoint. Upland dominated by grey dogwood, red and black rasberry, and elderberry. Aspen forest on the north side. % of dominant species that are �il Descriptions Indicator Status pit, 1 to 50/20 Ve¢etation Wetland Vegetation Present? Scientific Name Common Name Calamagrostis canadensis Bluejoint Cirsium arvense Canada thistle Phalaris arundinacea Reed canary grass Polygonum amphibium Water smarlweed Rubus idaeus Red raspberry % of dominant species that are 66.66667 OBL, FACW or FAC in Pit: S Hvdroloev Hydrology Present ❑V Dominant According Stratum Indicator Status % Cover to 50/20 H OBL 10.00% ❑ H FACU 2.00% ❑ H FACW+ 50.00% Sd H OBL 15.00% Sd S FACU+ 40.00% Depth of Surface Water Depth to Free Water Depth to Saturated Soil N/A N/A 13 inches Hydrology Primary Indicators Hydrology Secondary Indicators Hydrologic Alterations Drainage patterns in wetlands Topography /Landscape Positio FAC - neutral test Soil Hydric Soils Present: ® Map Symbol: 3428 Depth (in) Matrix Color Mottle Color Mottle Quantity Mottle Contrast Texture 0 -9 10YR 2/1 Sandy clay loam 9 -14 10YR 5/2 10YR 4/6 many 20 -50% distinct Sandy loam Hydric Soil Indicator: Mottled w /Chroma < 2 Pit #: 2 Indicator Status Vesetation Wetland Vegetation Present? Scientific Name Common Name Comus fcemina Gray dogwood Corylus americana Hazelnut Lonicera tatarica Tartarian honeysuckle Onoclea sensibilis Sensitive fem Polygonum amphibium Water smartweed Rubus idaeus Red raspberry Sambucus canadensis Elderberry, common elder Vitis riparia Riverbank grape % of dominant species that are 75 OBL, FACW or FAC in Pit: S Fivdroloav Hydrology Present ❑ Dominant According Stratum Indicator Status % Cover to 50/20 S FACW- 75.00% S FACU- 5.00% ❑ S FACU' 20.00% ❑ H FACW 2.00% H OBL 1.00% ❑ S FACU+ 50.00% 0 S FACW- 30.00% ❑ H FACW- 5.00% Depth of Surface Water Depth to Free Water Depth to Saturated Soil Hydrology Primary Indicators Hydrology Secondary Indicators Hydrologic Alterations FAC - neutral test Soil Hydric Soils Present: Depth (in) Matrix Color Mottle Color 0-9 10YR 2/1 9-14 10YR 512 10YR 4/6 Hydric Soil Indicator: Mottled w /Chroma < 2 Map Symbol: 3428 Mottle Quantity Mottle Contrast Texture Sandy clay loam many 20 -50% distinct Sandy loam is • is • 0 • Project: Oak Park Heights Citv Hall Basin : C FVJ This site is a jurisdictional wetland Comments Date: 9/5/2008 Investigator: BLM Date 2: Transect Information Transect # 1 Pit #: 1 Normal Conditions: © Wetland Vegetation Present: © Cowardin: PF01A Atypical Situation: Hydrie Soils Present: © NW[ Mapped: NO Problem Area: Hydrology Present: © Topographic Setting: Isolated Depression Aerial Photo Year: 2007 Comments Scientific Name Gauge: Stratum Vegetation dominated by green ash saplings with fring of larger trees. % Cover to 50/20 Seasonal hydrology Pit Descriptions Pit #: 1 Vegetation Wetland Vegetation Present? FV Dominant According Scientific Name Common Name Stratum Indicator Status % Cover to 50/20 Acer saccharinum Silver maple T FACW 10.00% Frapnus pennsylvanica Green ash S FACW 60.00% Phalaris arundinacea Reed canary grass H FACW+ 2.00% Pilea pumila Clearweed H FACW 1.00% % of dominant species that are 100 OBL, FACW or FAC in Pit: HVdrolo2v Hydrology Present 0 Depth of Surface Water Depth to Free Water Depth to Saturated Soil NA N/A N/A Hydrology Primary Indicators Hydrology Secondary Indicators Hydrologic Alterations Water marks FAC - neutral test Received hydrology from City Hall building Drift lines Water - stained leaves Sediment deposits Soil Hydric Soils Present: © Map Symbol: 3426 Depth (in) Matrix Color Mottle Color Mottle Quantity Mottle Contrast Texture 0 -14 10YR 4/1 10YR 316 many 20 -50% distinct Silt loam 14 -18 N2 /0 5YR 4/6 common 2 -20% distinct Silty clay loam `iydric Soil Indicator: Chroma of 1 with or w/o Mottle Pit #: 2 Indicator Status Vee,etation Wetland Vegetation Present? Scientific Name Common Name Acer negundo Box elder Frabnus pennsylvanica Green ash Populus tremuloides Quaking aspen Populus tremuloldes Quaking aspen Rhamnus cathartica Common buckthorn Rhamnus cathartica Common buckthorn % of dominant species that are 60 OBL, FACW or FAC in Pit: FACU Hvdrolosv Hydrology Present Dominant According Stratum Indicator Status % Cover to 50./20 T FACW- 20.00% Sd T FACW 10.00% ❑ S FAC 10.00% 11 -18 10YR 4/1 T FAC 30.00% Hydric Soil Indicator: S FACU 20.00% Chrome of 1 with or w/o Mottle H FACU 20.00% FACW- Depth of Surface Water Depth to Free Water Depth to Saturated Soil N/A N/A N/A Hydrology Primary Indicators Hydrology Secondary Indicators Hydrologic Alterations Drift lines Water marks Drainage patterns in wetlands Soil Hydric Soils Present: © Map Symbol: 3428 Map Symbol: 342B Depth (in) Matrix Color Mottle Color Mottle Quantity Mottle Contrast Texture 0-4 10YR 3/1 10YR 313 common 2 -20% distinct Silt loam 4 -11 10YR 2/1 10YR 3/3 common 2 -20% distinct Silt ktarn 11 -18 10YR 4/1 7.5YR 4/6 common 2 -20% prominent Sandy loam Hydric Soil Indicator: Stratum Indicator Status % Cover Chrome of 1 with or w/o Mottle Acer negundo Box elder T Pit #: 3 Hydric Soils Present: F-1 Map Symbol: 342B Depth (in) Matrix Color Mottle Color Veeetation Wetland Vegetation Present? ❑ 0 -18 10YR 3/2 Silt loam 18 -20 1 0YR 5/3 1 0YR 4/6 common 2 -20% distinct Silt loam Dominant According Scientific Name Common Name Stratum Indicator Status % Cover to 50/20 Acer negundo Box elder T FACW- 20.00% Populus tremuloides Quaking aspen S FAC 10.00% Rhamnus cathartica Common buckthorn H FACU 75.00% Rhamnus cathartica Common buckthorn S FACU 20.00% % of dominant species that are 50 OBL, FACW or FAC in Pit: Hvdroloev Hydrology Present ❑ Depth of Surface Water Depth to Free Water Depth to Saturated Soil n/A N/A N/A Hydrology Primary Indicators Hydrology Secondary Indicators Hydroiogic Alterations r] • Soil Hydric Soils Present: F-1 Map Symbol: 342B Depth (in) Matrix Color Mottle Color Mottle Quantit%, Mottle Contrast Texture 0 -18 10YR 3/2 Silt loam 18 -20 1 0YR 5/3 1 0YR 4/6 common 2 -20% distinct Silt loam • • • Project: Oak Park Heiqhts Citv Hall Basin : D © This site is a jurisdictional wetland i Comments Seasonal hydrology, closed depression Date: 9/5/2008 Investigator: BLM Date 2: Transect htfortttatiott Indicator Status Pit #: 1 Transect # 1 Veeetation Wetland Vegetation Present? W Scientific Name Normal Conditions: © Wetland Vegetation Present: © Cowardin: PEMA Atypical Situation: ❑ Hydric Soils Present: © NWI Mapped: NO Problem Area: © Hydrology Present: © Topographic Setting: Isolated Depression Fratanus pennsylvanica Green ash Aerial Photo Year: 2007 Comments OBL, FACW or FAC in Pit: Gauge: ❑ Vegetation is dominated by Bidens and sedges. 70.00% Seasonal hydrology. Pit Descriptions Indicator Status Pit #: 1 to 50/20 Veeetation Wetland Vegetation Present? W Scientific Name Common Name Acer saccharinum Silver maple Bidens frondosa Beggar -ticks Carex prclecta Loose- headed oval sedge Circaea alpina Enchanter's nightshade Fratanus pennsylvanica Green ash % of dominant species that are 100 OBL, FACW or FAC in Pit: T Hvdrolo¢v Hydrology Present Dominant According Stratum Indicator Status % Cover to 50/20 T FACW 10.00% ❑ H FACW 50.00% ❑� H FACW+ 5.00% ❑ H FACW 2.00% ❑ T FACW 70.00% Depth of Surface Water Depth to Free Water Depth to Saturated Soil N/A N/A N/A Hydrology Primary Indicators Hydrology Secondary Indicators Hydrologic Alterations Water marks Water - stained leaves Drainage patterns in wetlands FAC - neutral test Soil Hydric Soils Present: FV Map Symbol: 266 Depth (in) Matrix Color Mottle Color 'Mottle Quantity Mottle Contrast Texture 0 -17 10YR 3/1 Sandy loam 17+ 10YR 2/1 10YR 3/3 common 2 -20% distinct Silty clay loam Hydric Soil Indicator: Chroma of 1 with or w/o Mottle Pit #: 2 ;'o Cover to 50/20 Veaetation Welland Vegetation Present? Scientific Name Common Name Stratum Acer saccharinum Silver maple T Carex projecta Loose - headed oval sedge H Fraranus pennsylvanica Green ash T Rhamnus cathartica Common buckthorn S Dominant According Indicator Status ;'o Cover to 50/20 FACW 10.00% FACW+ 2.00% FACW 20.00% 0 FACU 75.00% % of dominant species that are 75 OBL, FACW or FAC in Pit: HArolou Hydrology Present Depth of Surface Water Depth to Free Water Depth to Saturated Soil n/a N/A WA Hydrology Primary Indicators Hydrology Secondary Indicators Hydrologic Alterations Soil Hydric Solis Present: n Map Symbol: 342B Depth (in) Matrix Color Mottle Color Mottle Quantity Mottle Contrast Texture 0-4 10YR 311 Silty loam 410 10YR 5/3 10YR 5/6 marry 20-50% distinct Silty loam Hydric Soil Indicator: 1] Pi • • • -W(.ASHINGTON: ,ONSERVATLON ISTRICT,' MEMORANDUM TO: Ben Meyer; Bon troo, for Oak Park Heights FROM: Jyneen Thatch#r, land Specialist DATE: October 13, 20 Or RE: Wetland delineation, City Hall Property 1380 W FRONTAGE RD H I G H W A Y 3 6 ST LLWA,TER: MN 55082 651-275-1 136 [PHONE) 651 -275- 1 254 [ FAX 1 WWW.MNWCD.ORG As requested, I have reviewed the wetland flagging and the data sheets for the Oak Park Heights City Hall property, which you delineated in September. Based on review of the documents provided and a site review on September 26, 2008, I would recommend the City accept the boundaries as flagged. You should have the boundaries surveyed and submit a complete delineation report to the City within the next few months. On our review, we noticed a large patch of poison ivy between Wetland C and the trail. It was far enough off the trail that it probably has been missed by the maintenance staff, but it was at the transition between the prairie plantings and the oldfield vegetation. As such, it might be safer for the park users if it was controlled, especially if additional restoration activities are pursued on the site. It was a pleasure to participate in the review of this site. Feel free to involve me in additional reviews of projects in this community.