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Home My WebLink AboutLINCOLN PARK (FORMERLY LINCOLN MIXED-USE PDP), 1110 E. LINCOLN - PDP - 40-94G - CORRESPONDENCE - WETLANDS DOCUMENTSnine Wetland Determination - Data' m (1987) COE Wetlands Delineation Manrwl Project Site L kJ- a2._ Investigator 1 r\► Date Z / p� ppllcant / OwneCounty/State L.o-r C C o Sample Pt ID IDo Normal Circumstances exist on the site? Is the site significantly disturbed (Atypical Situation) ls this a potential Problem Area? - Ex fain e� No Yes YesrFlo11 Hydrolog Recorded Data (Describe Below) Stream, Lake, or Tide Gauge Aerial Photographs Other No Recorded Data Available Depth of Surface Water C� Depth to Free Water in Pit 47 Depth to Saturated Soil 1 LD Wetland Hydrology Indicators: Inundated Saturated in Upper 12 Inches m Water Marks = Drift Lines a Sediment Deposits Drainage Pattern in Wetlands Oxidized Root Channels in Upper 12" Water -stained Leaves c Local Soil Survey Data FAC-Neutral Test o Other (Explain Below) -. o drolo Indicators Vegetation Dominant Taxa Stratum Indicator % Abs Cov r�� 1 r: w, = '..•,r>rrocK,y Tr sh6?b L Z 2 Tr Sh 6ert 3 - - Jo. Tr Sh P66 (may% 4 er o` Tr Sh 5 Tr Sh Hero 6 Tr Sh Herb 7 Tr Sn Hero 6 Tr Sh Herb 9 Tr Sh Herb ill Tr Sh Herb 11 Tr Sh Herb 12 Tr Sh Herb 13 Tr Sh Hero Omer wetland Species Tr Sh Herb Other Upland Species 7r Sh Haro Divide Tot. Wet. sp. by Tot. of All sp. to get Relative Cover. Total Relative Cover of FAC, FACW, or OBL Taxa (exc. FAC-) OI 8 Drainage Class Profile Description (Moist Colors) Map Unit Name (Series at Phase) Taxonomy (Subgroup) Confirmation of Mapping Yes No Deoth In Inches Horizon Matrix Color Mottle Color Mottle Abund / contrast Texture etc. 1 n - I U O '`f 12 Z _. z 3 4 5 6 Hydric Soil indicators Histosol Histic Epipedon Sulfidic Odor Aquic Moisture Regime Reducing Conditions Gle ed or Low-Chroma Colors Concretions High Organic Content In surface layer of sandy soils Organic Streaking in Sandy Soils Listed on Local Hydrlc Solis List Listed on National Hydric Solis List Other (Explain Below) dric Soil Indicators Remarks: Continue on Back of Form e land Uetermination Is Enough H dro h Ic V g y p yt Veg. Present. (i.e. 5090) Is Wetland Hydrology Present? Are Hydric Solis Present? Yes � Yes � Yes N Is This Sample Point Within a Wetland? Yes or O inin st a and r� al IJ ri IL -- - -I, -Substa �--e---- - r91 - CANAL a "— \. � „ je -� "_=�—.: �� C-rCH -- FJCST•. wb3n�VlNf - _ DRIVE P c Ya•y-- NORTHERN ? _ --- •� - BURLINGTON �........ j .r Srrtung e-,1Andcrson%ilie — ' Lincoln Mixed Use ; Tra, i. -- ,. F'-- =•—=J Development Site �; : d,l • _ _ aw .Huckingbam DOWNTOWN "',ti,� • " r Park L= i'• � l •1' J ¢' FORTI COi.LINS \4,J) AiRPARK 4 01 •r P + �,. ram•±, ti. r ,,` •, ,_ -_ _ - y _. r 4, I �d� ,' a�� '. �j ` lu- Jt� r� _n�i lr •1' '� �rw _ �r i�{.� __ _ ,, c.- ` _ 771 W�)1�._.rll� ,a Z �y v-i 7F�I W'L.� H ry �I -• pIQ F nn;. _y'�a1 "�, .: H,Qh 4:h 1� '.. gG—�,�i- / + , ` o ' —�"_-F k � '-'� "t'S\ . ��. _ �—.� ° ...•—,_ t _ •; .. ry �,er�er � _y _ I� !� o.. 4 F� a J --'i ""�'"'i'"�. 1 \J ` ,y p - `�.:.��•�. IJ-/...'.. G '•','may'--`��' - i�d/J�� •. _. FIGURE 1 we Location of the Lincoln Mixed Use Development Site 'wrk rrt llr Scale: 1 inch = 2,000 feet Fort Collins, CO Map Souce: USGS 712' Quadrangle - T. McKee 2/10/06 Page 3 of 3 and crested wheatgrass (Agropyron cristatum— UPL). No sample points were established in the Lincoln Avenue ditch, and the area was not surveyed since it is outside of the property boundaries. TABLE 1 Summary LMU Property Wetland Survey Sample Sites Sample Cover by FAC-OBL Wetland Hydric Soils? Wetland?/ Point Species Hydrology? Comments 100% IOA YP& Yes -water marks, high -matrix: 10 YR 3/2 Low area in LMU-1 Dominant Species water table? with few/faint irrigated pasture Puccinellia airoides - OBL 2.5 YR 4%6 Cr/tesion 'ubatum - FACW mottles 0% j 2 No N2 -elevated above -matrix: 10 YR 3/2 No indicators of LMU-2 Dominant Species LMU-1 with no mottles or wetlands, Thinopyrum intermedium — other hydric UPL indicators Convolvulus arvensis — UPL Cardaria draba — U PL Breea sieversiana - UPL Jurisdictional Considerations. The wetland in the center of the property is isolated by surrounding uplands and has no continuous wetland or defined channel connection to other waters of the U.S. The Lincoln Ave ditch flows to the southeast and parallels the north side of Lincoln Ave. It continues along Lincoln Avenue past the Lincoln Avenue/Link Lane intersection until Industrial Road. At that point, the ditch crosses under Lincoln Avenue and dumps into a larger canal that parallels Mulberry (State Highway 14). A previous approved jurisdictional determination issued by the COE for Larimer County's Lincoln Avenue/Link Lane intersection upgrade project determined that the wetlands and waters in the Lincoln Avenue ditch are non -jurisdictional (see COE File No. 200580352). Terry, the preceding pages summarize the results of the wetland survey completed for the LMU development parcel. Please give me a call if you have any questions. Sincerely, CEDAR CREEK ASSOCIATES, IINQ T. Michael Phelan Principal attachments pc: J. Prouty, Lagunitas Company w/o oversized wetland map T. McKee 2110A6 Page 2 of 3 saturated soil profile conditions, drainage. patterns, and oxidized root channels in the upper 12 to 18 inches of the soil profile. As indicated in the 1987 Corps of Engineers (COE) manual, vegetation, soils, and hydrologic wetland indicators must be present in order to classify an area as wetland. In conjunction with formal sampling sites, numerous "check holes" were dug to further aid in making wetland/upland boundary determinations. Check holes provided additional vegetation, soil, and hydrologic information useful for refining boundaries between wetland/upland transition zones. Such information was also used to better characterize wetland and upland conditions within the survey area. Feld data sheets were not completed for check holes. Following the analysis of site characteristics, the wetland/upland boundary and sample points (LMU-1 and LMU-2) were flagged with pink fluorescent tape and orange pin flags tied with pink tape, respectively, for subsequent survey work. The results of the field analysis are summarized in the following paragraphs. Copies of the data sheets completed in the field in are included as attachments to this report. Surveyed wetland boundaries are shown on the attached oversized wetland map. Results According to the Soil Conservation Service's (SCS) Soil Survey of Larimer County Area, Colorado, the only soil in the project area is Loveland clay loam, 0 to 1 percent slopes. This is not a hydric soil, but it can contain wetland inclusions. Topography of the site is essentially level with a drainage gradient to the southeast. The majority of the project area supports non-native grassland/pasture and disturbed weedy areas. Dominant plants recorded in these upland areas included smooth brome (Bromopsis inermis'), Kentucky bluegrass (Poa pratensfs) tall fescue (Festuca arundinacea), intermediate wheatgrass (Thinopyrum intermediam), crested wheatgrass (Agropyron cristatum), western wheatgrass (Pascopyrom smithy), cheatgrass (Anisantha tectorum), kochia (Bassia sieversiana), flixweed (Descurainia Sophia), Russian thistle (Salsola australis), and field bindweed (Convolvulus arvensis). These upland vegetation dominated areas exhibited no evidence of wetland hydrology or hydric soils. As indicated, the only wetlands delineated on the property were a small area near the center of the property and wetland strips along each side of the Lincoln Avenue drainage ditch (see attached Figure 2 and oversized wetland map). The wetiand near the property center is dominated by foxtail barley (Critesfon jubatum - FACW), Nuttall alkali grass (Puccinellia airoides- OBL), and saltmarsh sandspurry (Spergularia marina- OBL). This wetland area is a low spot in the pasture area and has probably formed as result of excess irrigation water runoff or because of the high water table in the area. The wetland/upland boundary was defined by a shift in dominance from these species to upland species including intermediate wheatgrass (UPL), field bindweed (UPL), whitetop (Cardaria draba- UPL), and kochia (UPL). Sample points LMU-1 and LMU-2 were established to characterize the wetlands and uplands, respectively, in this area. A summary of the sample points is provided in Table 1. The small wetland area north of the center of the property wetlands only meets City of Fort Collins criteria for wetland determination. The wetland is dominated by wetland vegetation (foxtail barley) but exhibited no hydric soils or wetland hydrology characteristics. Wetlands supported within the bottom of the Lincoln Avenue drainage/borrow ditch begin at a culvert discharge point near the southeast property corner. Wetlands in the ditch are characterized primarily by dense stands of cattail (Typha latifolia - OBL) and Emory sedge (Carex emoryi- OBL) along the lower portion of the ditch. The ditch bottom also exhibited areas of open water in the middle of the channel. The wetland boundary along the ditch was defined by a shift in dominance from cattail to smooth brome I Scientific nomenclature for vegetation follows: Weber, W. A. and R. C. Wittmann. 1996. Colorado Flora Eastem Slope, revised edition. University Press of Colorado, Niwot, Colorado. 524 pp. G UaZ1a`]1®L4.11d� ll LG�y INC. �� •• 916 Willshire Ave.. Fort Collins, CO 80521 • (970) 493-4394 February 10, 2006 Terry McKee U.S. Army Corps of Engineers Denver Regulatory Office 9307 South Wadsworth Blvd. Littleton, CO 80128-6901 RE: Lincoln Mixed Use (LMU) Property Wetlands Dear Terry: A proposal to subdivide the subject property into commercial and residential lots is being prepared for submission to the City of Fort Collins, Colorado. Cedar Creek Associates, Inc. delineated wetlands on the property on August 2, 2005. The wetland surveys were completed for the developer of the property, Mr. Jonathan Prouty. Contact information for Mr. Prouty is as follows. Jonathan Prouty Phone: (970) 226-5000 Lagunitas Company 3944 JFK Parkway, Suite 12E Fort Collins, Colorado 80525 The proposed development site is located in Fort Collins, Larimer County, Colorado in the Southwest 1 /4 of the Northwest 114 of Section 7 (T. 7 N. R. 68 W.) at the northeast corner of the intersection of Lemay Avenue and Lincoln Avenue (see attached Figure 1). Two wetlands areas were delineated on the property. One small area was delineated near the center of the property and another along the Lincoln Avenue drainage ditch (see attached Figure 2). UTM coordinates (NAD 27 CONUS datum) for the approximate center of the property are: Easting - 0495266; Northing - 4493018 (Zone 13T). This letter is submitted to request your approval of the wetland delineation and to receive a preliminary jurisdictional determination regarding the wetlands delineated. Study Methodology Wetland mapping and delineation work was completed using the methods and techniques specified for "routine on -site delineations" in the publication Corps of Engineers Wetlands Delineation Manual (1987). Project maps were reviewed in the office to familiarize field personnel with the project site. A cursory examination of the property was made prior to field mapping to verify property boundaries and access routes and to identify site -specific vegetation community characteristics. Field investigations and wetland delineation were then initiated. Sample points along and within suspected boundaries were selected to properly identify and delineate wetland/upland boundaries. A formal field data sheet was completed for each sampling point At each sample point, percent total cover of dominant vegetation species was estimated. Species were then classed as OBL (obligate wetland species), FACW (facultative wetland species), FAC (facultative species), FACU (facultative upland species) or UPL (obligate upland species). A predominance of FAC, FACW, or OBL plant species is the vegetation parameter indicating wetland presence. Soil and hydrologic data were also collected, where possible, to determine the presence or absence of wetlands at each sampling point Wetland soil indicators include the presence of a histic epipedon, mottling, gleying, and high organic matter content and/or organic matter streaking in the surface layers of sandy soils. Potential wetland hydrologic indicators include topographic position, presence of standing water and/or