Loading...
HomeMy WebLinkAboutEver Vail Wetland Delineation March 2008 VVETLAN D RE PORT Date: October 27, 2008 ��/'�� f f � - � J'� f � ;_..�t': r ff ,�, l . �� _ {�� /•-"�. / ...,e .�'/"^, ��7 /!<• , � � - —�4 �� �;' f �� � f � �f �, ti.) �. ♦ _ I' , f �: i�„� � � � �� ! -� � .. �r���' . �\�Jy,, � �� � . � - ,f�/ ar' � �♦ . ,�`.. . J� Y�� - .~ : ... . . � � �`'��� � ;iy, �.3�, r,��.. �. ' ` �� .r ..�: ' �, • �, � ,. ,, " ,�, - -- `y�~ .��y y' .�-�'. ,r� � _ .,�`� _ _ _ }` t� %``�r =;.� : s ^� ,� � .�. `f� � � ,/ �- +! /J; ''- �:> - �. � �� I, �� � �, f�, � �• • �/'�j y�i' }'�i :i ��l_ �4 - �.���� . � �� �r ,� ��I � f��'' �_91 9'.. ��a � � �_ i� r,- �j � �. f' /�,�/, '0 s,.� .,S r 'r� � _ ' _.� `� t�,. � ,� .. �i� - X�- � .:i/� L!� ��� . , 1• ` •C� .. /.. . �� .Y I L 1 J � y ' �� }T J i � �': 'S �r . , t1 +.`� �r f /` �,�� , _ l ,'1 - _''. � °� ey x �� �� -r-� J I: , < ``'� .�,;�� � ♦♦ f �, - ��✓__ � f E t ` y� l'�"` '�� _ '�� � '�. � \ r'� ,� �+ -� 7� �� , �i ,-,��f '.s it, _ � . l�j. _ � f �Y;„('t' �. . . . � , � �.' • � � - .:j� '.��� _ � , r- -rt ,_ jy,� _ r. F. !� _ � _ , �-"� � � • °,J�J __- � .•}'.1.,� " �_ .:.► .��:, � .,� � �. r,� - �,�.�:, - - � ..:, . - .. ; - �,�; ��, L _ ��;"� � � � `, ��, -J . �' � ._ �' ' ��` .. _ __ -�r"�.� �. ��;�rr. �� ' � VAIL RE54RT5' „ OEVEI�OPMENT COMPANY Mauri�IloPlanningGroup ill • March 13, 2008 Mr. Mark Gilfillan U.S. Army Corps of Engineers 402 Rood Avenue, Room 142 Grand lunction, CO 81501 Via Mail RE: Ever Vail Project � Dear Mark: Please find enclosed a Wetland Delineation Report for the Ever Vail project in Vail, Colorado. Wetlands were delineated along two perennial streams and therefore are considered to be jurisdictional. Please let us know if you would like to visit the project site to review the wetland boundary. Sincerely, David Johnson Ecologist DJ/ssc Cc: Bill Kennedy Enclosure • i • Wetland Delineation Ever Va i I Proj ect Eagle County, Colorado � p�epared fo�• Vai I Resorts Development Company PO Box 959, Avon, Colorado 81620 prepared by.• Western Ecological Resource, Inc. 711 Walnut Street, Boulder, Colorado 80302 � March 2008 �' I � � Table of Contents Section/Title Page 1.0 Introduction.......................................................................................................................... 1 2.0 Environmental Setting ........................................................................................................... 1 3.0 Delineation Methods.............................................................................................................1 3.1 Agency Coordination......................................................................................................... 1 4.0 Wetlands Present .................................................................................................................. 1 4.1 Red Sandstone Creek Wetland...........................................................................................4 4.1.1 Location......................................................................................................................4 4.1.2 Classification...............................................................................................................4 4.1.3 Vegetation ..................................................................................................................4 4.1.4 Hydrology...................................................................................................................4 4.1.5 Soils............................................................................................................................4 4.2 Gore Creek Wetland.......................................................................................................... 7 4.2.1 Location...................................................................................................................... 7 4.2.2 Classification...............................................................................................................7 4.2.3 Vegetation ..................................................................................................................7 4.2.4 Hydrology...................................................................................................................7 4.2.5 Soils............................................................................................................................7 4.3 Wetland A......................................................................................................................... 7 4.2.1 Location...................................................................................................................... 7 4.3.2 Classification...............................................................................................................7 4.3.3 Vegetation ..................................................................................................................7 � 4.3.4 Hydrology...................................................................................................................8 4.3.5 Soils............................................................................................................................8 5.0 Analysis of Jurisdictional Status..............................................................................................8 6.0 Photos...................................................................................................................................9 7.0 References .......................................................................................................................... 14 AppendixA. Field Data Forms..................................................................................................15 • I I � List of Figures Number/Title page Figure 1. Project Location Map...................................................................................................2 Figure2. Wetland Map...............................................................................................................3 List of Tables Number/Title page Table 1. Vascular Plant Species List............................................................................................5 List of Photos Number/Title Page �, Photo 1. Red Sandstone Creek Wetland, view upstream from the road crossing. (5/2/07). .........10 Photo 2. This small island in Red Sandstone Creek contains both wetland & upland habitats.. ...10 Photo 3. Red Sandstone Creek Wetland, view downstream from the road crossing. (5/2/07). ....11 Photo 4. Wetlands are more extensive on the small floodplain. (5/2/07)....................................11 Photo 5. Gore Creek Wetland, western portion. View upstream from the bridge. (5/2/07)........12 Photo 6. Reed canarygrass grows in small stands amongst the large boulders. (5/2/07)..............12 Photo 7. Gore Creek Wetland, view downstream from the Forest Road Bridge. (5/2/07)............13 Photo 8. Wetland A is located in a man-made drainage swale near the culvert outfall................13 • 1.0 Introduction � Vail Resorts Development Company has plans to re-develop a 9.5 acre parcel in West Lionshead into a new earth-friendly development called Ever Vail. Specifically, the project site is located in Sections 6 and 7 of Township 5 South and Range 80 West, and Section 12 of Township 5 South and Range 81 West (Figure 1). The development would include a new hotel, condominiums, commercial/retail space, a parking garage, and a new gondola to access Vail Mountain. To aid in project planning, a wetland delineation was completed for the 9.5 acre project site. Please note, all Tables and Figures are included with the text or are located inside the back cover, and all Photos are located in Section 6.0. 2.0 Environmental Setting The Ever Vail project site is located on an irregularly shaped parcel in West Vail bounded by Interstate 70 to the north and Gore Creek to the south. The South Frontage Road for I-70 bisects the project site, and roadways and existing developments are located to the east and west. Red Sandstone Creek, a perennial stream, flows south from a culvert under I-70 through the Ever Vail project site. Approximately 320 feet south of I-70, it flows through a box culvert under the South Frontage Road and then continues south for approximately 200 feet before flowing into Gore Creek. Gore Creek, also a perennial stream, flows into the Eagle River approximately 2'/z miles southwest of the project site. The project site is dominated by existing commercial and retail developments and by a maintenance equipment yard for the Vail Ski Resort. Elevations range from a high of � approximately 8,138 feet in the northeast corner to a low of approximately 8,054 feet along Gore Creek in the southeast corner. 3.0 Detineation Methods Wetlands were delineated by Heather Houston of Western Ecological Resource, Inc. and David Buscher of Buscher Soil & Environmental Consulting, Inc. in accordance with the U.S. Army Corps of Engineers' Wetland Delineation Manual (1987) on May 2, 2007. Specifically, wetland boundaries were delineated and flagged based upon the prevalence of hydrophytic vegetation, hydric soils, and indicators of a wetland hydrology. Field forms for the five test pits with vegetation, soils, and hydrology data are included in Appendix A. In general, plant species names follow Weber and Whitmann (1992). The wetland status of plants follows the 1988 National List for the Intermountain Region. Classification of wetlands follows Cowardin et al. (1979). Wetland flagging was surveyed by Gore Range Surveying of Vail, Colorado. 3.1 Agency Coordination The U.S. Army Corps of Engineers has not visited the project site to review the flagged wetland boundary. 4.0 Wetlands Present Herbaceous wetlands were mapped along the two perennial streams present within the project site, Red Sandstone Creek and Gore Creek, and in a shallow depression just south of I-70 near the northeastern corner of the ski area maintenance equipment yard. Each wetland is described � below and is illustrated by Figure 2, the Wetland Map. 1 R81 W ' R80W i'x�l4id'_'s°i .., _f.,'���31.lP`t- _.. {C,t , .. ,_, _•'�"�� Ji il„ 1,_`�C_ 4e.-f, ..,. ,� �'r ` ' , � .. � �.^' _.�."j _ \ �� ; � y � � � �, ��r `� _. �� . ���� '` �,;� P ��`' � t� f -' F � �d ;t� � � ��'""�� ' � � ,��''� � � � y. � d� � � j�', � `'"`� ° �; `-. µ �,"' „� �..:� � ;�, i �.,,,.% � E � ' I- � , � � � �� ���..� � ��� � � _ � � �� ��� ` ' ` �` ` �'�. � � ��..�'' �` �� � � p� � � � �,,.�.�. � �� l s . � , .;., .�-��°° �; �';� � �� },�.� 3 � � �` t ' � ✓� f r7r � ' � ` � � t t � �-��„-�P--.� � �.� ��, � f � l � t 1 `�._ 1 ^`'�t � �'�. �s` ! t�,,. '� � � � � � tfD � _,�,� g � � �� .�� � �����: � � f� � � � �"�•, � � - �` a , ��ri M�� � � � ���� ,r �� ��` f I— , � " �� � '� "�a � { �+�� g � �..�''' a � � ��'� i >f � „� � �.� � � ��i Ir". ` .Y "`w.. � ��✓ [ r�I" r e s� � � �,f Y� f � } �.�`+,,,)t '�., �;' j"`,✓ s- �' �,. �' x� � � � l� t "�.d' A 9', PfF �� 1 �i..,,. . — t .._ '-� � ° � ' � s`� �/ :}f� 3 e �. ,..rr '�`"�," � �� f. � '�4 ' ��(��3� � `'�. C t '�'�. � :,�,.✓ `�,. �/ ,� � . ,�� � 't � .A x �\ �:`� --••- � ,� t`� ;7 .,�'' - c ' t ,; � � �z ,� �' � t � . �' s -�..� � t � _ ...:.. �xr. ' i i k ` � i,. acF„�.� #� i,. � �.....- •t ��.� � � ?�*�.�� 7 � _ `'�, i,� ^�;' � � �, _� ; '` `� �.+ , � 6� , •�.� �,� ✓ i i-_ � �?. �" � �,.,~"+��.._....a � � � � ��az .. � �. � t �� • ��,«f�' ' . �.,"'"�. � � �ty� .*'-,�._ �r�w �"'" . �`'r+..../ • '�� � �..� � � �� `: i t � �\-��.. .�� ��' �'\ � r � �� � I�% �;� ,f �,� � • ;s�~��'� Pro�ect Site ��y����.�'� � ��_ � �� € �,�` .i � ,. � ��� .w .r.ti . �� `�.�r��" j ,� �` / ,✓""��I�'�+ � _ Ar � �. ``'� � 1 � � �" � � � ����".��-�a: � � '�x_ , . , �. � . , ��� _ ���i i .., .}. _"�' -£�`^*.. j � L � / .'ry � �..-/� �+� . � . � - S t :�r�� � � �,r f .:i'�� � ^� �� +,,h W�.. ..., ` ` ,.�� � � F^ �s J �'Y '" �F�' �.-�� ,,,ay: ... . �� rr �,r /.� .i-' � - Pt�r a .__. ' �� 1 � p t / �'., .. aM iP '� l,4t .ola' £' �� � M*� �,,g�. � , � 4 t�fS �� � _.,✓ Y 4� � .�... �� ���� :f ��`4��^�+^°... W `/t�1M1i'� s.,"_a'�'q�t ..:` . ' � 'r flt >� O 1 ' s � �ya'xr t-.=� a ,,,4^c�'� s w. �}� � " .��, d ��""` �Sj.t%` � �� a� ✓- ""`/' `„'.�r � `�s.'i^t� � aa. a t �,^ �'-i ��'a� L��rt! � Y`'�+;� �b r ✓+-� ,/�I /.a✓"�.� ...«.. , � «i ¢�g � : �"":i-:�i' rr "i.��j 5 v`> � �:�,.. ,�- *,.M p � .. � ... ..�»....� � � , - , � 1 ';�/f�,/°;:t ', �,,,.x..,..!��r� >''r ,; �� 1�,i' �,;.,,^"`"'" . _••..,-,�, ::� 1..^�"� �� --""':>� ,.�-., �ti ,y`c� �'#``� i- , " �" '���,, ,,.r ''', �'.F'..+ ��'�� ,.�� i-�»��^�"".___:_ ...,......^.«..„.,,„„ �.� `� � • � ,. - .�..,,.�, , � w� ��. , ..y� �.. � . t �� +r��{�►; , �. �.F/ �� � �If � ai��.. - ���� � ' t �, ��nr-�,..r �� � _ � r'� _� � � ``�� ;�,.: � ._ ?,� �'�`'` � .�,� ,,, � " '� ,�� �</�� .���' ����,��,---��.,. _..� �� __ " �' '�` �� __ ,��.- � �� � ;� ��r � ;.����r�f,���y���:.- / �,�` �f �,,,..�,, # �"-�,� .��� �� - r . .. i y3� .�..�$�6� � ��� �F � � i� rP . � �.. ��� "•r_ "$ „�a � � . �`"�k � . ��� ��O/��,d� :,�r. - �: � ,��,, .. ���."<...�,t ,�� ,� "�,� � . °� ��"d1� � � � ..6' �� � �,, � ! � �"°�,u.......�' � .. , "�`4"°"`..-.-.y,."'t"'`"`� � �� �, ; •'� ,��� �.•r i � .k ' < ' :. '.°6.. ,� �.. „�A t °.;,, ���� '� � � i � � � }� � ��.`�-�.�.�.� =� ; � ��� � �� �--�=-f. '`�•.._ 't�, '� �`� 4'� � �/� � t °� ,.d � .r°'""�:..`��� � �C i ��4..,...'7 � � \ � ,,`-�',a� _� :'�, �� ,.� �, , �j `'� -�, � ; ��``�-�..�.�.� .,r � �?� `l /(u, ,�y � � g \ � �' �f�'.* .r -.1�fi�, ,,� ���,,. �' �j � : � / , •"`^.......«,.�w,�'^'"°.-�,�".,�° °^^+°"",° �`,�..���' j r'`,..�\ `r„` °r „� f �"t "`^ � Z � "`..�- t r` "" ., t�` � ..._ ..,.., 9vs... ..,,,,� e . \� -'' ✓� ;�•�. j �r�� t € .._ ' i - >. '' � � � "` `r 4 �� `% y ..� -i ��f1446��•- �/ ,., t�� .0 , ,.. �,.-.�' ,�.: 1 i" ��+�"s..._...���.,,,_sy✓" ".`..,""ti. ` ` �°' � . 4 )� f'�`� � , il � "a ,�f`-� / �, i�.. f. �`"' t�� ; ' � ..... �r� , � � . �� �`( ���� � � ��� -'� ...�F'�^��Y' .�� 3 d �q - - � �'' s,+� / � ,.I �,,/ f� ?f6 �,,�x"'«-,' �...i.i`'�i `•� �''�,�. � ` +t 3, is '( �// f' ,.�._».�� �� 4 . �'�""�,..�" •� ; ,„�. �}'' l � � rr \, � "� � ' � ,,''',,�yg � t� � � "",,,,� 'f� � � ��ti v�i`� ���1'1 �� � �F;< t r � y��, i �� � '` � � '� ��� ��� �� ,rr � � � f�,// :` �.�4'""` .,.��`ti ,,,_,,,���. ""^^�,m ��' �^`.. .. ��jt ��� �;� t �f, . P '��` E�'qI � �+x ,�' �`a � } w��},•�,C�, � ��. �� �v�' ��� � _'�/ .. A�, _ � � ,,. � � ;"'�ti i � _. � . .�. , . , -- .�, r w .,, . `� .. . -. . . , a . - ;� '•�� �� . . �P . ... '�" �� �.. . .� . . . . .. ....... � . .. ,. ... c ¢ . . , � w.� � F.� r . . , . � ...�� . �,� .. , : � .... � .� , . ... �. t � : . � . ... 'c... - ,--. '+,•. ..1' . . , . � ' . � . . . � .... � �"_ BASE: USGS 7.5 Minute Vail l�'Vest, Coloradn Quadrangle FIGURE 1. Project Location Map Phoiorevised: 1987 Ever Vail N , -��� WESTERN ECOL061CAL - , , RESOURCE,INC. Scale 1°=Zaaa' • ; , `Map ,,,„,N„z�,.,.,��„<�„� Contour Interval =4b' Locatior , COLOF2AD0 , 2 i� �\\ I � �\\�\ II � \ \\ n • t �� � d \ � � ?. � � � � � �o' nN �� 1 � r,\ � cn � a `� � > > cD � '�� C G7\ O � N vai � j . I G� a � �^ � � o_ � o • o � m � � v� � � ' � m �'�r � 7� \ � n� o � o � � � ' �� � � � � ; am � , � � � o �, �\ x � � il � ya o \ I 'c � � � \\ � I � �' ���^\� `� \ , � \ \ � � � � \ � � � �� i! n � � � , sf d �� � d`- v � co I ��_�� � %��___--• � � � �� � I � �_.�' �.._ - � �� .� � .. � , \ ..� ` N�� :A�' `. � � %�j/ \ `��^� ��,\� l \. I � � � ,V� �\ � � / o � � x � � \� ,, n � � � � � i ��t � °' ,l\ � � + ` ( � � � � � � � I V������_. � � � � I�!`_, --- ( �'�` , � °' �h� � � �� � �� � � � v o , � � ` � a m J � � ✓ \ � � � \� „c ; m � �� � � � � � � � � ���' � � ��x � � � i � � _ � � I � ) �� � °' `D � � • D � � � \ � �a�o� �- � �� � � � I a � . � � __� �i pg0�� ` � � .� � � �� � ��y���, -"',� �� _. � ° \� .���:.\ � � i - �� �� � , � � � � � '� N �� \ a � o o� � �� � - � i 3.� �� ��i � ��, I <p \ 1\`� � � \ � ^ � �-' � � � I � � � � � _ �, � � � , � I! a � \ � � � , � \ ' c-� \\\�\ \ I ; � t m \_ ___- ---�._ - _ _ _ ___ __ w r T! ... � � � cfl w - c m � ° `�° •� I � � � °a , ` i � � � Q ►v ' - � �' � fA d m a o O o DD ' m � o i a� � � g � � � � � m � ; �� � � � � n � d < � �_ - � �, � = m o � - � ;,� Z � � � z = �. � � > ° � A � � � �.y � � � nCi a • ti " �N s � � ° � - u000 �oz m m — � N�'� r� N � - i � Sr�� °^: '�p � o A �< � I m �� I! � .-._ � 4.1 Red Sandstone Creek Wetland � 4.1.1 Location Herbaceous wetlands were mapped on both the east and west banks of Red Sandstone Creek and on a small island within the channel, located just south of the culvert under I-70 (Photos 1-4). Upstream of the Frontage Road, the Red Sandstone Creek Wetland occurs in a narrow band due to the steepness of the banks and limited floodplain development. Downstream of the Frontage Road, the wetland is more extensive on the small floodplain created where Red Sandstone Creek flows into Gore Creek. 4.1.2 Classification The riparian wetlands delineated along Red Sandstone Creek are classified in the Palustrine System, with Forested, Scrub-Shrub and Emergent Persistent Wetland Classes under the Cowardin Classification System for Wetlands and Deepwater Habitats (Cowardin et al., 1979). 4.1.3 Vegetation The riparian wetland located along Red Sandstone Creek has a woody overstory dominated by blue spruce and Engelmann spruce (Picea pungens,� P. engelmanniiJ with occasional narrowleaf cottonwood (Populus angustifoliaJ trees. The diverse shrub layer includes several native species including mountain willow (Salix monticolaJ, whitestem gooseberry (Ribes ine�meJ, bush honeysuckle (Distegia involucrataJ, Woods' rose (Rosa woodsiiJ, and red raspberry (Rubus idaeus ssp. strigosusf. In the herbaceous understory, common graminoids include redtop (Agrostis giganteaJ, bluejoint reedgrass (Calamagrostis canadensis), beaked sedge (Ca�ex utriculataJ, water sedge (Carex aquati/isJ, smallwing sedge (Ca�ex micropte�a), and bog bluegrass (Poa leptocoma), and the upland grasses smooth brome (B�omus ine�misJ, Canada bluegrass (Poa comp�essaJ, slender wheatgrass (E/ymus trachycaulusJ, and orchard grass (Dactylis glomerata). The native perennials scouring rush (Equisetum hyemale) and field horsetail (Equisetum arvenseJ are also F present in the saturated soil habitat. The most abundant forbs in the understory are the native � perennial cow parsnip (He�ac%um sphondylium ssp. montanumJ and the noxious weed Canada `�r thistle (Ci�sium a�venseJ. Other common forbs include chiming bells (Mertensia ciliataJ, largeleaf avens (Geum macrophyl/umf and New Mexico checkermallow (Sidalcea neomexicanaJ in the wetter soils, with fireweed (Epilobium angustifoliumJ, leafy bracted aster (Aster foliaceousJ, Richardson's geranium (Geranium richardsoniiJ, and dandelion (Taraxacum officina/eJ in the drier portions of the wetland. Table 1 lists the vascular plant species observed on the project site during the wetland delineation. 4.1.4 Hydrology The Red Sandstone Creek Wetland is supported by perennial flows in Red Sandstone Creek, seasonal flooding, and the high ground water table associated with the alluvial aquifer of the creek. Several small, poorly defined drainage swales also convey stormwater runoff from the adjacent developments into the Red Sandstone Creek Wetland. 4.1.5 Soils Five soil pits were evaluated to determine the boundary of the Red Sandstone Creek Wetland. Pit 3 is located within the surveyed wetland boundary, and Pits 1, 2, 4, and 5 are located in the adjacent uplands. Pits 2 and 3 are located on the small island in Red Sandstone Creek, which contains both upland and wetland habitats. Pit 3, located within the wetland, was saturated below a depth of ten inches, and a few mottles and oxidized root channels were also identified in the upper 12 inches. The hydric soil in Pit 3 is classified in the Typic Cryaquolls. Pit 2, located in the upland portion of the small island, did not contain saturated soils and lacked any redoximorphic features. The soil in Pit 2 is classified in the Fluvaquentic Haplocryolls. The upland soil in Pit 1 is classified in the Oxyaquic Eutrocryepts, and Pits 4 and 5 contain Fluvaquentic Haplocryolls. None of these pits was saturated at the time of the wetland delineation and no mottles or oxidized root channels were present. � 4 I �, TABLE 1 Vascular Ptant Species List Ever Vail Project Wetland Scientific Name Common Name Family Origin* Status** Trees Picea engelmannii Engelmann spruce Pinaceae N FACU-* Picea pungens Blue spruce Pinaceae N FAC- Populusangustifolia Narrowleafcottonwood Salicaceae N FAC* Populust�emuloides Aspen Salicaceae N FAC Shrubs Co�nus sericea Redosier dogwood Cornaceae N FACW (C. sto%nife�aJ Distegia involucrata Bush honeysuckle Caprifoliaceae N FAC Ribes inerme Whitestem gooseberry Grossulariaceae N FAC+ Ribesmontigenum Gooseberry currant Grossulariaceae N NL Rosa woodsii Woods' rose Rosaceae N FAC- Rubus idaeus Red raspberry Rosaceae N FACU spp. strigosus Salixd�ummondiana Drummond willow Salicaceae N FACW+ � Salixexigua Sandbarwillow Salicaceae N OBL Sa/ixmonticola Mountain willow Salicaceae N OBL Salixplanifolia Planeleaf willow Salicaceae N OBL Sympho�ica�pos�otundifolius Snowberry Caprifoliaceae N NL Perennial Graminoids Ag�ostisgigantea Redtop Poaceae I FACW (A. albaJ B�omus ine�mis Smooth brome Poaceae I NL Calamagrostis canadensis Bluejoint reedgrass Poaceae N OBL Carex aquatilis Water sedge Cyperaceae N OBL Carexmicroptera Smallwing sedge Cyperaceae N FAC Dactylisglomerata Orchard grass Poaceae I FACU E/ymus t�achycaulus Slender wheatgrass Poaceae N FACU Glyce�iag�andis American mannagrass Poaceae N OBL (G. maximaJ luncustracyi Tracy's rush Juncaceae N FACW+ Phala�is a�undinacea Reed Canarygrass Poaceae I OBL Phleum pratense Timothy Poaceae I FACU Poa compressa Canada bluegrass Poaceae I FACU Poa leptocoma Bog bluegrass Poaceae N FACW Poa palustris Fowl bluegrass Poaceae N FACW Triticum aestivum Wheat Poaceae I NL Perennial Forbs Achillea lanulosa Yarrow Asteraceae N FACU Arctostaphylos uva-u�si Kinnickinnick Ericaceae N UPL � Aste�foliaceus Leafy bracted aster Asteraceae N FACU 5 TABLE 1 �, Vascular Plant Species List Ever Vail Project Wetland Scientific Name Common Name FamilY Ori in* Status** Cardamine co�difo/ia Heartleaf bittercress Brassicaceae N FACW+ Ca�daria d�aba White top Brassicaceae I+ NL Ci�siuma�vense Canada thistle Asteraceae I+ FACU Epilobium angustifolium Fireweed Onagraceae N FACU Fragaria virginiana Mountain strawberry Rosaceae N FACU Ge�anium richardsonii Richardson's Geranium Geraniaceae N FACU Geum macrophyllum Largeleaf avens Rosaceae N OBL He�ac%um sphondylium Cow parsnip Apiaceae N FAC ssp. montanum Leucanthemum vulgare Ox-eye daisy Asteraceae I+ NL Mertensia ciliata Chiming bells Boraginaceae N OBL Noccaea montana Alpine pennycress Brassicaceae N NL Paxistima myrsinites Mountainlover Celastraceae N NL Ranunculus cymbala�ia Shore buttercup Ranunculaceae N OBL Rudbeckia occidentalis Montane coneflower Asteraceae N NL var. montana Sidalcea neomexicana New Mexico Malvaceae N FACW checkermallow � Taraxacum officinale Dandelion Asteraceae I FACU+ T�ifolium hyb�idum Alsike clover Fabaceae I FAC- Urticag�acilis Stinging nettle Urticaceae N FAC ssp. g�acilis Ferns & Fern Allies Equisetum arvense Field horsetail Equisetaceae N FAC+ Equisetum hyemale Scouring rush Equisetaceae N FACW Annual/Biennial Forbs Ca�duusnutans Musk thistle Asteraceae I+ NL ssp. macro%pis Cho�ispora tenel/a Purple mustard Brassicaceae I+ NL Coniummaculatum Poison hemlock Apiaceae I+ FACW Cynog/ossum officinale Houndstongue Boraginaceae I+ NL l/e�bascumthapsus Great mullein Scrophulariaceae I+ NL * Oriqin **Wetland Status N = Native OBL = Obligate Wetland I = Introduced FACW = Facultative Wetland I+ = Colorado State Noxious Weed FAC = Facultative FACU = Facultative Upland UPL = Obligate Upland � NI/NO/NL = No Status in this Region 6 4.2 Gore Creek Wetland �,, 4.2.1 Location The Gore Creek Wetland forms a narrow band along the southern boundary of the project site, where the steep banks and abundance of large boulders limit the area available for wetland development(Photos 5-7). 4.2.2 Classification Under the Cowardin Classification System for Wetlands and Deepwater Habitats (Cowardin et al., 1979), the riparian wetland along Gore Creek is classified in the Palustrine System, with Forested and Scrub-Shrub Wetland Classes. 4,2.3 Vegetation The steep, partially shaded north bank of Gore Creek supports a narrow band of herbaceous wetlands. The forested overstory is comprised of mature blue spruce and Engelmann spruce trees. In the shrub layer, mountain willow is common, where it grows with Drummond willow (Salix d�ummondianaJ, planeleaf willow (Salix planifoliaJ, whitestem gooseberry, Woods' rose, bush honeysuckle, and snowberry (Sympho�ica�pos rotundifoliusJ. Less abundant shrubs include sandbar willow (Salix exiguaJ, gocseberry currant (Ribes montigenum�, and dogwood (Cornus se�iceaJ. Very little herbaceous wetland vegetation is present within the surveyed wetland boundary due to the abundance of boulders and the limited area of saturated soil habitat. The most abundant species in the Gore Creek Wetland is reed canarygrass (Phalaris a�undinaceaJ, an introduced agricultural grass. Other less abundant herbaceous species in the wetland include scouring rush, field horsetail, slender wheatgrass, orchard grass, and the forbs Canada thistle, stinging nettle (Urtica graci/is ssp. gracilisJ, and fireweed. In addition to Canada thistle, the noxious weeds houndstongue (Cynoglossum officinaleJ, great mullein (l/e�bascum thapsusJ, oxeye daisy (Leucanthemum vulgareJ, musk thistle (Ca�duus nutans ssp. mac�o%pisJ, and purple mustard (Chorispora tenella)are all present in uplandsjust outside the wetland boundary. � 4.2.4 Hydrology Perennial flows in Gore Creek, a tributary of the Eagle River, saturate the banks and provide the hydrology for the Gore Creek Wetland. In addition, the wetland is influenced by seasonal flooding during snowmelt and the seasonally high ground water table associated with the alluvial aquifer of Gore Creek. 4.2.5 Soils No soil pits were dug within the surveyed boundary of the Gore Creek Wetland, however it is reasonable to assume hydric soils are present along this perennial stream. 4.3 Wetland A 4.2.1 Location Wetland A is located just outside the northeastern corner of the project site, in a shallow man- made drainage swale that receives stormwater runoff from a culvert under I-70. The small wetland, measuring approximately 70 square feet, is located near the mouth of the culvert outfall (Photo 8). 4.3.2 Classification Wetland A is classified in the Palustrine System, Emergent Persistent Wetland Class. 4.3.3 Vegetation Wetland A contains a mixture of wetland and upland plants. The most abundant species in the wetland is American mannagrass (Glyceria g�andisJ, a native perennial, however timothy (Ph/eum p�atenseJ, an upland pasture grass, is also common. Other common plants in the small wetland include Tracy's rush (luncus tracyi), willowherb (Epilobium sp.J, alsike clover (T�ifolium � hyb�idumJ, smooth brome, and slender wheatgrass. As soil moisture is reduced farther down the 7 I � drainage swale, the plant species composition shifts toward the introduced upland grasses timothy, slender wheatgrass, orchard grass �Dactylis glomerataJ, smooth brome, and a small amount of wheat (Triticum aestivumJ, which was seeded as a nurse crop during revegetation. 4.3.4 Hydrology Hydrology for Wetland A is provided by a culvert that carries stormwater runoff below I-70 and into the man-made drainage swale. A shallow depression near the mouth of the culvert pools a small volume of water to create saturated soil conditions. The swale has been constructed to convey stormwater flows toward Red Sandstone Creek. 4.3.5 Soils It was not possible to dig a soil pit within the boundary of Wetland A because the man-made ditch is lined with permanent erosion control fabric which should not be disturbed. Therefore, the presence of hydric soils was assumed. 5.0 Analysis of Jurisdictional Status i The Red Sandstone Creek Wetland and the Gore Creek Wetland are jurisdictional because Gore I Creek is a tributary of the Eagle River, which flows into the Colorado River, an interstate water. ' Wetland A is located in a man-made drainage swale in the immediate vicinity of the culvert outfall and does not have a surface hydrologic connection to any other wetlands or waters of the U.S. Wetland A is more than 800 feet away and 28 feet higher in elevation than the nearest portion of the Red Sandstone Creek Wetland, and water is seldom conveyed down the man-made swale, which is vegetated by upland plants. Therefore, in our professional opinion, Wetland A is isolated and non jurisdictional. � � 8 �il' � I I • I I i I • 6.0 Photos � 9 II i � \ ��, ;� ��. III� � � ` �� , � � ��� _� � � � � ���, � �� '� �� ° _ � �'�: �, ,� � �� � ��� � z�� �.�� � �� �� . ,� '���� I � � �� � � � �� ;g �« � � � ���� ;: s� *� '�, � � E a1 '�'t �� l \���� a., � �#i �i3 Z �M "+ �� ?����A����'4 , s �r� �� `y`` ��M �� ����� ��' �� � �I �. .::� .��� �' �.�'A�kR r� �,� ..,:" .._ ,, `F� ������� �c � 2��,s g� i 4�"�' r". ��4 rr, - :a��.Yo �� �� ���" � ,�i E` .�.4�'a r��� °�� .�,,:s 3 � � $�� � �� E v � � s�� �� � �3��� `� �a `���'a�R��� � „a�:* � �� `��:, ::, � ���'�� �x�a�.'�� `� �£.�` ���'; ��'�#�����q.� � ���` � \ � €�� ������.. ��� ��. � . I � "'+�'� ,. s��.:.� � � �'� �� ' ° � � � °� �� � '� B °*�`a��� �� � � �'� 9� c v � f° � � �� ��� ��%.`�'��'v � F � � �§ .�.� �4T� afi �',.a � �b II � � � m_ . ��a� ' � x�- '� �,.�.. �� � � . �� �. ��' r"� �.�� $, ��'°'�a�x��Y� ���� � �� �` � a�.5;a`� ��'�g�..:�� ��d r.�+�.� ;a� t .i�g, su^�� � ..�,'M,s +4 e�a� w„�? � � ,�, � �� x` ,� ���m��'" �i ` »:�.� ��" �.�=.�,� � "�����r���3°� � e �� ' � � � � , s� ���,_ �� ' �`�s��, =����i �t�a��� �� .> �� �': � _�� I� � �� �n � � � � � � � � � �� � I � . . � �: � � � �,� a �� +���� � �����}��.����t��. � ��� � � �,"' �, �_ � � dr e�-� k �r � ,��s ���� ��� x�� ���.� :, r �. �, e.� �: �� ��'���. '��� «,�. �� ,����'� . � Y ��s � � �� Photo 1. Red Sandstone Creek Wetland, view upstream from the South Frontage Road crossing. (5/2/07). � r `�" -� �"'�� - � � � ,�l. j(i, � ���� UiP�� �I'I�I I i� �� � r ��, ;,. ��` I�ii� �� � � ��I� �pl� I������� �U � ��� �,,,�� � d��a � ��` 3's� ���, f � �a � � � �s�&� ��" 4� �"``r,� : � �'� �� �'����� �g� � xd s� ��n� i �6u ��`� w. ��'� ��` Y�_.�� iy e k� . +� � JI 1_. k ��Rt ,� � �� ,�» � � °R4" � . a�, ��`Y���� �i I������� ���y[�R � �r � . , 'A ��� � I ;i i � .b, �� iR � � ���� ���{d�� �'��i��,. �N � � t�� y,�, �V�Y ,E�i �3 �° ��,S �p� � �� � �' �'" ,"-�, �°n'�, �€�>' '�,�� . .°� : �'� �i°a e�� �. . ".. z � r � � � vr � "� � � �� , � r ? �E�,* � �� , �`�i.,� 6� � 3 � a '.. }�� ���s � �. , �� ,�, � a�� y a �� � � y���� :�.; . �� ���£, {,��y ����'�` p�.� �:'�+. �. ".i"���,�'; y �` ' . �'yR ' � v � " . ""' �.°S� �..`. p ��'�"�,`5� t4' �`>��1. � .. . ��� .� ... � � .,.� �+y• �,,� ,y +�a" � �� � , � � �t`� tr � �� � � � ���� r.� �� }� �� 3A 1ez���� . , J r �°.� #tk°�,+�wt��'°t�' . .= 1 ID /� r ; °a�a�,,��, ., � � °��, . �t � �e f ��' � � , gy ; � , l. � �,�;�� � ^�&��a�� �^ ��.,{ "�C.. �� :,� �"k.*� > ��� �'.�' -,, '� 'x .`�,�' q i'�' +� a ,�8 l�. � '�a,.��a.,� '�,' �4�l.; � r�F, �#3 �.<i "x ��};. �F . i .V°` ,0 y . ;` `�'+R„`�� ^�a�°`� ��;t �6�� ''�a � � a,i � ��� � ., �`� �x� ._,s.a"`°� AL.� � x�a>`,� � � r r ��' � � � ����� ��s � -��� ��"��� �'��,s-�' �''' �< � ���`��� � �� � � � ����� ������ , � . . � .. � _.., � ��°`.�;� .� �,�� �3 ..� Tk� r �°� a ,a ; �� �, . �� r ' 4 � �« r�`°' '� '��'� � ,� � � r� _ � �g"*g . t � , ����,����.�o �� � ���„��.��„'�� _ a . �€; a� �_� �� . a, . "� � � Photo 2. This small island in Red Sandstone Creek contains both wetland and upland ' habitats. (5/2/07). 10 � �� °.��. � � �� � 7� � � � 3` r. � � �-� � p� � �" � � �ri � � � ��j. ���� �.�,'� �"� �� � t�, , �.r:, � � ' '"' �� �� ,, °� �� ,�" ' � � �`��« � �� � � ��'° �"�'� "� '�"°� '�.�� `�y�a^ � � ��'��: ,�r ky .. �. F� .r ,` � ��� �'�. ,� q�d .�..� ,F•, ;a.�`'�iaG �:.. � ,. �"` -. � ' ' t : . � �' .. '�-�`���, '. � �. � � R" �,� ��.� � � �' i� �. Y' c� .:.�. .,�-• 's A,� � a.. � ., ;�.� � �� . � , @_ �a .�-. P� r� ��,a' .,� � .. �g�,a s 0 a .,��� s� :, .... � 4 g#s+"� 7� � ��, "� .� ":�� � '�," � t,� ����§''�� . :�s, �? a� ���+P• �c��^ ^� � r�'' ' �V'�4� �tai�3�I�� �. 3 ��.. �, I0" �` R a � x ��. � ��� .�� �� #� t. � iej �i . � ���� � �� , � ��. � � � � ���.�:. �*^� � a� � c. �.,� 4 ��; � �� �' ���� � � asy.� µ '¢� S ��-� �' v " '� . , �.x a� €s��$ � � �,, � , ����� .+` Fiz��,*� �$#�c�a�� S ' � �C � � �� � �: .. �,' a'�, s,.�".n'.r � � �� � �.-��_ � � �. ��k���� ' b�; e`' �� � � a ' ' <'�' ,r�� s�'� � q'V� � � 3:P °�s�� . . �y •�� �, � �� �� � � .� �..e.� �C�u,�. � . e� '�:��.� � �� .�,��,"e ,�s�. �,P�y� �s.� �, �� t�.w.>>� . � �;- � Sa.' � Y1�� a-a€ � u Y�aa . , 2� � a q � c € y��� t..� `�` . R �A`� C � '� .:: yE � �e3.1n .: �z ;� 'vY_ �`�����'��3 w, �� � �. °a � � �� ���.,� ��� _ �� � r� � � � � ��e���� ��. �. � �� �.� � � ;� 4 �;� �� � � '� � � � . � , ��. a� �� �. ��.��w� t�a. rM" . �g,, s £ �: � � �� �� �� � � �� , ` . ����� ��..�� �i���a J��Rs � °`� F a "� � ,�,. . ...x . ... . x ,._�waa��:�. g ��a�.,s. �.� ��>. � _ . ���"'�. _�`d« Photo 3. Red Sandstone Creek Wetland, view downstream from the South Frontage Road crossing toward thejunction with Gore Creek. (5/2/07). f � ' ��II��P��°7' 9� fII'I �� �9; ��E� .; �ii; iI,J �I�A�,��'�,ill IV, � ��'. I �. � � � . � $� �� � �y. �� � � � �fi�� ��� ��� c r����� ���� ���� ��t� ��� 5 `�ua�'� 'w�� � . „ . � u�e�i �. y�p R w � �, �'��a a��y. �_ � % °d �' ` ' �'"a-°� .. � � z..�.�-�-s �`��'�i. . \ d E� t� , .k�� � `# .4-.�p ag� p #`'���'^ ' _� � ��s �� ���r� s . . ��� ���' � � ro' � ,��� �Y.��@� �1_�p�. #� 3 s� #�k2l�� 33ep i3:bt� . . �� ` �+� j dR 3 � ����� a����� $.��Y r ; ... � ��y�`�,�.� � � r 4 � . ���'�6"$-��tk�i� . .�°� F�� `+ � ... ��t��' : � . �# � y . .. �� t�' . � ���t� i�� ��� ���3 .. .._ a,a, � �„ `B.` r� t` m`� � _ . � � �� � � � ,.���� . �, . �x ':. �v}? 4 $`� €� ^�"b S�'::� �� �w, ,6. . ;�.. � i'°��'_ � '. ; .. Y,� `� � x 3i� � �A¢� r�� ��Y �}.�.. % . :F�i � � � a��r r r f`�^ p `� '°'pa x b, k ' —,���, ' �.- r� �� � �; � .i�"� :d, ,r%� '�;�.� �A r�'. , , , �� . . -��•:�^ ,� � �� r� � �� � �� � j �'� t'" "x ,� �,,�y � �� � - ..<,��� � ��' . ��� � j . ..i E� ' .P� 3 .,e� �p¢� �� �� $.F'�.� , �... ��-d..`���ati',. . p ... ... .�4 . `•��. �F '�.E..A"'�"..r. =e�& >. , b d.; . �f�,.�R.`R{��. � Photo 4. Wetlands are more extensive on the small floodplain where Red Sandstone Creek flows into Gore Creek. (5/2/07). 11 � � i �� "�'��� �«�� v��x +��� t� � ��� � .:�°'�+�`` � � .. � r�"�� •s. ��� :, � w a.�:'� �r° "� w= , �.�c . ���� ,� �����,'''t e� °: ,R '� ra�. . qsT ,� �� ������ �p, . ,�� . .� �' ,� I �:� � :�¢.x:. '��s.; -��.���._ ' - ,n<-�� .� �I .� ,�� a r�.; _ , ��� a�G 1: �'� ,.�. . � '�;a.�- �ea �, � .` , m� i � �` � � ���.:. ., �� � Bs� � � a�? "� � � ��& �.�, �" ��>,, ���'�a� � �I E a y �3�,.,Y^ �Y,"`.,6. . _„ ��a....- i .z'' �"-� �`� �+�,�' ^��`' � �,, �,,`,,e �.`, �_ , �, �"��,�,..,���.�' �� � ������� "�"� � � �� � .Y�, � ��� � �' � ... � $±��., ya ���f � °�5 �, � � � �#�* .. � "�a� �p.x, �k�'b�.' '.. xz-.. . A'.w, ^�-'a.«... e,.�u �-, � 'a �, ' ,.h`.�a,, i , �°, ry " ��n +�a� . . >� ,��.. §r,` ` $ � � ��; �'��X � ��g � , ,� _ � � ��qn.- . 4. � � �;" , . I� ��� f � �� . , :..�. .d� �I , s, a,�� . . �' . .,., .,` ��� -. � ��.�� �,;.� � ' �'., �. ..+� ' k�, , � � I , ��,. . : .. - .. . .,�y,t+w' �l �� ,� :�� � � � � � � � � � ,�r y '.� n �, ° � �... a �' ��'�,a�' � € ; .�r I $� s°s�� r�";�.. � �.. w � � � c,� '�. *a<`�� � �a �� '�, �� _ '��. '� :, . �'. ` � �W '+�� � '� � & A ,. � �' .�� ' ' � �;�� � ��,� ' ,�, a�°� ��+ i� „�.,��. � �z�Q � � � � � � �� � , �'�� „u,� � ��r�� � � �� � �� � � _€ � � �� �a��. � _ � � � � n � � �� �` ``��`1 � -r �� . , . ��..:. ' .. . .4� ���wim"�`��. :s,. �....r. w.�< . "�'- ..�.a,,.'� ��.:;>s A�:�Sr �. Photo 5. Gore Creek Wetland, western portion. View upstream from the pedestrian bridge crossing. (5/2/07). � �_ ��-� �. ����"�`� � . ' �°"�'� � � � � ���,;�.�, ~�x�.��, ,��. *� �.� � � �� �� � � � ��� � � '� '� "� � � � �� ;� ,��� � '"�� ° ���� ��,_ '.� _ �"�i� � '� �� ' � � "� �.� � �.���.� ' °� �,,. �. �"' x :.:�� �`�..� " a.s ti� '-� � �.� �.:w.'. . ��� � ��� �� 3� � ' � .� .� �S 4,� �{ � k � � � - y ... . . '�'_ � �d Z. e��i � � ` ��;�NMr `�� � ��� � � � � � ,�, ��� '��.� � ��� � � ' ,�' � : °�F ��?�� � �� �° ��"'q s � a . ���� �� " ��� � . u�� ` g����: i �Y�i � � ,� �a�� '�� � �. - `. �' �� �. {`��°a �"2c' t e j 1 � a j � �f ...,. t;k � As�' �v.t�'a� "�,�e �a � z�'� �'�'"�!� .� t ' .. . .. ��.� �� � ����i x� ��g'�-��p��,�,��'°€ s P � e' "`a�t� �' � ^ : ; ,,X�, ���,�_°�t�:��� n�»,��` ''�°�;�i,.��"y�5�y � ; 3 t � a�+£'�� •`'e:�' '�'"",��� � .�-�. � ��. � Y� � .�"L� �� . r. � � '�d ,��� ��.�K'�-�` �',`'t�z 8��'�,a' �� .�� ��r°°Y`�-"" ' ..aa'de �5 . � �"... �� *x�'b��� ���'Y� �`��g� � � ���� ��� ��'.� �„f> ; � t �� � �+� �; tt � -�" �� i t� *�-r�� ��,;�i�e ,+�- � �"�.,� . � �, '+���s ti $�`°�.�-.° � �(a� ���"����a°�� � ,� i �.c, ���'� .��j F� �. r �. �` ,� �d ��.� .�, � � �� `«s� ,�, , �_�� ' '� � � ���� .�,��,�� ��� � ���. .e � � � �� �t �� aaF � � �r�Z+�«. � 2��1 � � �,� �'� �'�'� °� , �; ,... �+�'a `,��'� pc�=t,�`i�, a� �""' �yc.y = �:3s,q�r,� ,v '�" t�t.X_x� � +.r.�v���+'k�°�'����M �h^��.���M ��� .E�w���`: � „ ?��*�"�' .i��' �,,i t�'�{e #�*� rn `q��` ' '"'�, �"�a. � �',�,s G�� � F �� �r'� � ���� � E af� � ��#�,�.� ' � �� �#g,�'(; � '{,y� � �� �Y ' ,+ f 4 p i ¢+ '�iY �t�6'�ii �p��.`.� ��r� .,. ��F�xJ �5• �5 � .�"` . "q. E 9 y, I f x4 # �> q� � t 7 � ' � � P:a�'�� 1 ;'£ � �< °L ��4.: '�'� . � � a �v` � +� �� � �� . ��t��� ,� a�`�`�� � 6�� ��. r .. � ....�,.w,.. �. � . '��A'i�3f.,���a���.:v�8d„��. , -i� ... . � Photo 6. Reed canarygrass grows in small stands amongst the large boulders that line the north bank of Gore Creek. (5/2/07). 12 � „ ��� .,��., ;�°, �� � '�� � : r: 3: r i, �, .� ,�,�w. �'"'°` �. ��e^�€ g� µ �,�.,.�»;� t _ � ro w H .:. i .� _,_.� ' t� Y.?-' `� etYi�� `-^�'_3� � � . a`•, ``"'"4� � '� _ � � T ' 3 � ' �a �` � �"a� �.;' � � =a�c p,d s .�' . ��. ��. ��� �. � �s* �� �°"p": . �: .. � � ' � .��'� ' � '. ���• � . � �n.A m�.�.: �� ��� � :�������, �� �� + � .i �. . ___� �. < �� =� �� � : ii. � 0�' �4.t— . �� „� '�� � ' x � � .� ��^.. �''���aw 8. - ��� ae ��� '� �, � � aS�� �� `�- , ar', � � '•�,sY_���.ur � �,qa�g '��` +a � �� ��� <� � �' ��� � ��. � . � � � � m. � � � � � � ��� _a �°� �� `� ��a���'��� �� ��' � �� �s � '"�'� �, �^� 3a?,..'���� �,?e.';�. �, 4e'�� � � ' �° "� - 2 � �'`� � �� _¢�� l � ��{ � 4•^ �\ �° k' � �q� � ,��' �,., ��w . ✓ � x'��: �3�^;� �°� � .� ��� � � � �t w ° � �`° 9 .. � � � �. p' f . �a L 8 A � ,g �",:. ,ed�^k�m�d. �# . - i �sP t� �, $�a�...��� �' ��.: . �fi �`.5' '�y� � .,g�Ery �h r�# �� '; +aF`w`� &�e �. ..&, �+ � ���� . � ��� ,,,uqe L�.m..�&4�e� - � �} 'R 4 ��d'„� � —°�� s £�"t� �<. ' � ;. . y� 6 �gF� !b&°' � . Sg# #�. �� `�S @ _��` A "` � `�� « b <y""� 4sd '�' � p � � �p ° +� - " x.r P . ��3� N��.m,..,ew�I°c. .a .. 4� .-- .. ., ta < x.. , a .�.a . S`, a;Y��" iG' � .�. Photo 7. Gore Creek Wetland, view downstream from the Forest Road Bridge at the eastern � boundary of the project area. (5/2/07). �q ,�_, .. ..�; �� �� � '� �,� � .�: ��'� �� �' , �� ��. , _ �- ���x� ��� �, � �� f���.��� : ;.� � , � , � ��� �° �� �8�3 � ���� `" � a..° n ��,�„�� ��- �-a , � �^^� ��� � "�.� £ 'vm�+En�-� . _�i�� 4 .��., �. '� ^� � t �5 st�a"W.`� t . . � . a5', t }��F 6}eay, "a:dr� ... �i�(« .. " . 'n.. — � ,,-'�' � '. �- ��� �. �_ .. ` "�.��.. . , .. e y ��_- �''f . r _� : :;��� '� � � �. � �< ""} � k R � �'� � ��y�� ��.a,� ; � � ' � �' +d�""' •,J h��•a^a'. d�kr• � � �, � � ��� ��� ° �.� � y ',� �t � �:��;p � . _ ��a k p + �i3 ��h�4r �r.i. �0���. � � '� - 'a Y �*�.m' �b0. sp y� s�',3 ��- A �A,�'�-` g � . ,� ,.�����; :� L,-> § `� .fY � § 4} �,"�qgi' .' � ��� �� �� �ry �,�,� ,A�r� s�'?� � ���`�' _'�,. . � � r°_� � •� �..���,�"��� � Photo 8. Wetland A is located in a man-made drainage swale near the culvert outfall, and is dominated by American mannagrass. (5/16/07). 13 7.0 References ' �.. I�, Colorado Natural Heritage Program (CNHP). 2003. Fieid Guide to the Wetiand and Riparian Plant Associations of Colorado. Colorado Natural Heritage Program, Fort Collins, I Colorado. I Cowardin, L.M., V. Carter, F.C. Golet, and E.T. La Roe. 1979. Classification of wetlands and II deepwater habitats of the United States. U.S. Fish and Wildlife Service Pub. FWS/OBS- 79/31, Washington, D.C., 103 p. � Harrington, H.D. 1964. Manual of the Plants of Colorado. The Swallow Press, Inc. Chicago, Illinois 60605. 'i �I Kartesz, 1.T. 1994a. A Synonymized Checklist of the Vascular Flora of the United States, Canada, ' and Greenland. Vol. 1 - Checklist. Second edition. Timber Press, Inc. Portland, Oregon. 622 p. Kartesz, 1.T. 1994b. A Synonymized Checklist of the Vascular Flora of the United States, Canada, and Greenland. Vol. 2 -Thesaurus. Second edition. Timber Press, Inc. Portland, Oregon. 816 p. National List of Plant Species that Occur in Wetlands. 1988 List. Intermountain (R8) Region. http://www.nwi.fws.gov/bha/ NatureServe Explorer: An Online Encyclopedia of Life. http://www.natureserve.org/explorer/ � U.S. Army Corps of Engineers. 1987. Wetlands Delineation Manual, Technical Report Y-87-1. U.S. Army Corps of Engineer Waterways Experiment Station, Vicksburg, MS. USDA, NRCS. 2007. The PLANTS Database (http://plants.usda.gov). National Plant Data Center, Baton Rouge, LA 70874-4490 USA. University of Colorado Herbarium (COLO). Specimen Database of Colorado Vascular Plants. http://cumuseum.colorado.edu/Research/Botany/Databases/search.php Weber, W. A. and R. C, Whitmann. 2001. Colorado Flora: Western Slope, Third edition. University Press of Colorado. Boulder, Colorado. Weber, W.A. & R.C. Wittmann, 1992. Catalog of the Colorado Flora: a Biodiversity Baseline. University Press of Colorado. Niwot, Colorado. Including most recent addenda available from CU Herbarium (COLO), Boulder, Colorado. � 14 • I I I , I • Appendix A. Field Data Forms � 15