HomeMy WebLinkAbout04.01 Binder 3 - Appendix MWorleyParsons Komex
rt,aurces & energy,
11 July 2006
Mr. Mark Giifillan
U.S. Army Corps of Engineers
402 Rood Avenue, Room 142
Grand Junction, CO 81501-2563
Dear Mark:
Environment & Water Resources
1300 Jackson Street, Suite 200
Golden, CO 80401 USA
Telephone: +1 303 271 0795
Facsimile: +1 303 271 0796
blairleisure@worleyparsons.com
PrRj. No.: 00641A040
File Loc.: Golden
RE: WETLAND DELINEATION FOR SPRING VALLEY RANCH - U.S. CORPS
FILE NUMBER 199875502
At the request of Wright Water Engineers (WWE), and on behalf of Spring Valley Holdings LLC, I
completed a wetlands re -delineation along the middle bench of Spring Valley Ranch where a
channeled natural creek flows through several wheat pastures on generally south -facing slopes. The
ranch is located in Glenwood Springs, Colorado (Figure 1 — Vicinity Map). WWE has been delineating
wetlands for the past eight years at Spring Valley Ranch and we assisted with previous development
plans to avoid any impacts to existing U.S. Army Corps of Engineers (USACE) jurisdictional wetlands
or "waters of the US" on the ranch. We have not needed to apply for any USACE permits to date for
the limited development that has occurred at the ranch.
There is a current revised 2006 Development Plan for Spring Valley Ranch (see Map Pocket). WWE
requested that I re -delineate wetlands along the middle bench at the ranch. The new development
plan (as well as the previous two plans) will avoid impacting wetlands located on the valley floor. The
2006 Development Plan also seeks to avoid and minimize wetland impact to the greatest extent
possible within the ranch property. I will therefore be reviewing all road, utility line, and lot layout of the
proposed development plan as 1 did in 1999 and 2003.
This report includes the latest 2006 wetland delineation for wetlands within the middle bench of Spring
Valley Ranch. On behalf of Spring Valley Holdings LLC, WWE and I request that you review this
wetland delineation report and update the USACE wetland jurisdictional determination for the wetlands
located along the middle bench area. I spoke with you today regarding this re -delineation and you
requested that we send this report with the new and older wetland delineation lines shown. You would
then update the middle bench wetland delineation without needing to visit the site, as the wetland line
has only minor changes from the earlier delineations (Figures 2 and 3).
p:lprcjectslblair's projectslactive 2006 proectslwright water -spring valley ranch12006 correspcndence\wetland delineation itr usace 6 27 06.dcc
ECEIVED JUL i ,..
lar
•
WorleyParsons Komex
resources & energy
BACKGROUND INFORMATION ON SPRING VALLEY RANCH
Spring Valley Ranch is an approximately 5,908 acre ranching property, located within several US
Geological Survey (USGS) topographical maps sections of Range 88 West, Township 6 South of the
6th P.M. in Garfield County, approximately three miles southeast of Glenwood Springs, CO., Latitude
39°30'00", Longitude 107°12'00". The ranch has historically and is currently a working cattle ranch with
associated lower hay fields and upper dryland wheat fields. A historic homesite is located in the upper
dryland wheat fields dating back to the late 1800's and early 1900's.
Spring Valley Ranch has two distinct physiographic regions:
1) A relatively flat valley bottom consisting of hay meadows, and
2) Relatively steep and well drained mountainsides with generally south -facing slopes.
The main water features on the ranch include Landis Creek and the drainage along the bottom of
Spring Valley Ranch. There are also several irrigation/stock ponds located on the ranch, the largest of
which is Hopkins Reservoir located in the headwaters of Landis Creek. Active channels at the ranch
include Landis Creek from its headwaters to the lower stockpond (Shaky Lake). Much of the flow from
Landis Creek is diverted into the stockponds located throughout the ranch for cattle and agricultural
purposes. There was no appreciable flow in the historic drainage of Landis Creek below Shaky Lake in
2000. USACE representative Sue Nall agreed in a 2000 field visit that the USACE would not take
jurisdiction over the Landis Creek drainage below Shaky Lake (see enclosed WWE letter dated
November 14, 2000). Additional jurisdictional active channels include drainages located below the two
stockponds located in the middle of the ranch which flow to the valley floor. Lastly, active channels
include the drainage that flows through the middle bench agricultural fields which is where I re -
delineated wetlands this past spring 2006.
HISTORY OF WETLAND DELINEATIONS AT SPRING VALLEY RANCH
Spring Valley Ranch was previously known as Aspen Springs Ranch and later as Chenoa. I completed
the initial wetland delineation in 1998 and 1999. The focus of the original and current wetland
delineation and mapping is on the southwestern portion of the ranch where more intensive
development is planned. The north and eastern portion of the ranch (steeper mountainside) was and is
still planned for 35 -acre parcels. It is therefore possible to design the current development plan to
avoid wetlands within these lots due to the large lot size.
Wetlands throughout Spring Valley Ranch were delineated and flagged in 1998. All flagging was
surveyed by Gamba and Associates and wetland areas were placed on the base mapping for the
development plan at that time. A delineation report was prepared for the U.S. Army Corps of
Engineers (USACE) review and approval with mapping (see enclosed WWE's wetland delineation
report dated August 30, 1999). USAGE representative Susan Nall reviewed the wetland flagging in the
field in May 1999. She determined that the wetland flagging was accurate and she provided written
approval of the wetland delineation and report in a letter dated Septernber 1, 1999 (see enclosed
USACE letter). The Corps assigned Corps Fite Number 199875502 to this proposed project.
Wetland Delineation Ltr USAGE 6 27 06
Page 2 of 5 11 July 2006
WorleyParsons Komex
resources & energy
The Spring Valley Ranch original 2000 Development Plan avoided any wetland impacts to the large
wetland area in the valley floor below and any wetland impacts on the middle bench wetland area. I
traveled all areas where roads and utility lines were proposed, and these areas also avoided any
wetland impact. No USACE permit was required for the 2000 development plan to commence.
In 2003 the project went through a series of minor revisions and I completed an updated wetland
delineation on the middle bench wetlands. There was no change to USACE jurisdictional wetlands on
the middle bench area. The 2003 minor revisions to the Development Plan still avoided any impacts to
the middle bench wetlands and therefore we did not have the USACE update the middle bench
wetland delineation at that time. There were no impacts to wetlands or other "waters of the US" in the
revised 2003 Development Plan.
The wetland delineation for the middle bench wetlands has expired and at the request of WWE and
Spring Valley Holdings LLC, I have completed an updated re -delineation of wetlands on the middle
bench. The new development plan seeks to avoid all impacts to wetlands in the valley floor and to
avoid and minimize wetland impacts on the middle bench to the greatest extent possible.
2006 WETLAND DELINEATION
I visited Spring Valley Ranch on Thursday, April 27, and Friday, April 28, 2006 for a field inspection and
wetland delineation on the middle bench area previously delineated twice before. Based on
observations of vegetation, soils, hydrology and other conditions, I re -delineated and flagged wetlands
present using the methods and criteria in the USAGE Wetlands Delineation Manual.
1. METHODS
The methods for delineating wetlands and "waters of the U.S." at Spring Valley Ranch followed the
USAGE Wetlands Delineation Manual (U.S. Department of the Army 1987). Field work was conducted
on April 27-28, 2006. Soils, vegetation and hydrology were sampled throughout and data were
recorded on the enclosed data sheets and through photographs. Soil color was identified using a
Munsell Soil Color Chart (Munsell, 1998). Wetlands were sequentially flagged and flags were surveyed
and mapped by Gamba and Associates (see enclosed mapping on Figures 2 and 3).
2. FINDINGS
Based on my field visit to the property on April 27-28, 2006, wetlands were identified in 9 areas
(Wetland Area A through Wetland Area 1) as shown on Figures 2 and 3. There is an unnamed creek
with an associated linear riparian wetland of largely rostrate sedge (Carex utriculata) and Nebraska
sedge (Carex nebrascensis) of varying widths in this watershed (Figures 2 and 3). The creek
originates from a spring and has been historically ditched through the two mid -bench dryland wheat
fields. The ditch is refined every spring and can be flattened by late summer due to cattle activity. The
wetlands in this area are considered USACE jurisdictional wetlands because they are sustained by
natural seeps, springs, and creek flow.
Wetland Delineation Ltr USAGE 6 27 06
Page 3 of 5 11 July 2006
•
WorleyParsons Komex
resources & energy
The vegetation communities in this area range from dryland agricultural fields and upland fields to
wetland marshes and riparian wetland vegetation. Dominant wetland plants include a combination of
rostrate and Nebraska sedges, Baltic rush (Juncus balticus), cattail (Typha latifolia), and dock Rumex
crispus.
Soils in the wetlands are dark silty loams. These soils generally range from 10YR 2/1 to 10YR 3/2 in
color. Wetland soil pits showed signs of mottling and gleying. Upland soils were lighter in color
ranging from 10YR 2/2 to 10YR 3/2.
Wetland areas along the middle bench were previously delineated in 1998 and 2003 and are the same
general size as the 2003 re -delineation. In Figure 2 the 2003 wetland line appears in red and the 2006
re -delineation appears in green. Wetlands along the creek lower on the property appear to be
narrowing likely due to ditch improvement that has reduced associated wetland growth. The 2006
Development Plan will avoid wetland impact along this middle bench to the greatest extent possible
(see 2006 Development Plan in Map Pocket).
On behalf of Spring Valley Holdings LLC, we request an updated wetland determination for this middle
bench area.
SUMMARY
Wetlands on the middle bench at Spring Valley Ranch were re -delineated in the Spring, 2006. The
wetland pockets are largely the same as in the 2003 delineation with minor narrowing of the riparian
wetland along the creek in the lower section of the property (see Figures 2 and 3). On behalf of Spring
Valley Holdings LLC, we request that you update the wetland delineation for this middle bench area
and send us the updated jurisdictional determination. The 2006 Development Plan is the same as the
previous 2000 Development Plan (no change to the upper 35 acre lot and road layout and no
development in the valley floor wetland area). The majority of the lower lot layout and golf course
planning avoids wetland and "waters of the U.S." impact with the exception of several road crossings to
access lots. The 2006 plan will avoid and minimize impacts to jurisdictional wetlands and "waters of
the US" to the greatest extent possible. Road crossings will be constructed as feasible to bridge or
span any wetlands or "waters of the US". If a USACE permit will be needed for this project, we will
contact you in order to apply for the appropriate permit.
Please feel free to call for any additional information or to discuss this project further.
Sincerely,
WorleyParsons Komex
Bla
eisure
Senior Wetland Scientist and Biologist
Wetland Delineation Ltr USACE 6 27 06
Page 4 of 5 11 July 2006
•
WorleyParsons Komex
resources & energy
enc.
cc: William Lorah, P.E., Wright Water Engineers, Inc.
Tom Gray, Spring Valley Ranch Holdings
James Lochhead, Esq., Brownstein, Hyatt and Farber, PC
Mike Gamba, P.E., Gamba and Associates, Inc.
Wetland Delineation Ltr USAGE 6 27 06
Page 5 of 5 11 July 2006
•
•
Appendix 1 Figures
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Appendix 2 Data Sheets
1
a
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
0
5
R
VEGETATION ' ' " ` ' • -,-, ' ' " - n
Irl 11 UtIVIAJU T
❑ Recorded Data (Describe in Remarks):
❑ St am, Lake, or Tide Gauge
Aerial Photographs
❑ Other
❑ No Recorded Data Available
Wetland Hydrology Indicators:
Primary Indicators:
imInundated
aturated in Upper 12 Inches
Dominant Plant Species Stratum Indicator
'. r \(: \ f 2c P Ems - -
Project/Site:r_le.r
Field Observations:
{{ be
Depth of Surface Water: E
Dominant Plant Species
Date: 9 i ,?
! Z-
t..
Cr
County: l `
Applicant/Owner: '41 t • 44'9 Id, i' f
(in.)
9.
Community ID: -
r+
g, (i.„..Is
Investigator: kk r \---e-- °'le.State:
Yes
�■ Noo,.•
1.,1vo�o
Ll
Do Normal Circumstances exist on the site?
the site significantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on revers
Transect ID:
3. r�;,Np as t^ v+- S P` FA t
■Yes
11.
Plot ID:
ir) --1.0.—
A
■Yes
12.
5
13.
0
5
R
VEGETATION ' ' " ` ' • -,-, ' ' " - n
Irl 11 UtIVIAJU T
❑ Recorded Data (Describe in Remarks):
❑ St am, Lake, or Tide Gauge
Aerial Photographs
❑ Other
❑ No Recorded Data Available
Wetland Hydrology Indicators:
Primary Indicators:
imInundated
aturated in Upper 12 Inches
Dominant Plant Species Stratum Indicator
• Drift Lines
Field Observations:
{{ be
Depth of Surface Water: E
Dominant Plant Species
Stratum
Indicator
Secondary Indicators (2 or more required):
• Oxidized Root Channels in Upper 12 Inches
• Water -Stained Leaves
1. {'3:a. $' r.'�<s,,iti.fgt,5 \...ef CM' 5
(in.)
9.
Depth to Saturated Soil: 'f
(in.)
• Other (Explain in Remarks)
2. Cyv v, Ca 4--o., co (A {-aa.. A IA
10.
3. r�;,Np as t^ v+- S P` FA t
11.
4.
12.
5
13.
6.
14.
7.
15.
8.
16.
Percent of Dominant Species that are OBL, FACW or FAC
(excluding FAC-).
90 "
L" ,
Remarks:
`
0—
IrlTutivLvuT
❑ Recorded Data (Describe in Remarks):
❑ St am, Lake, or Tide Gauge
Aerial Photographs
❑ Other
❑ No Recorded Data Available
Wetland Hydrology Indicators:
Primary Indicators:
imInundated
aturated in Upper 12 Inches
■ Water Marks
• Drift Lines
Field Observations:
{{ be
Depth of Surface Water: E
(in.)
• Sediment Deposits
• Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
• Oxidized Root Channels in Upper 12 Inches
• Water -Stained Leaves
Depth to Free Water in Pit: ---
(in.)
• Local Soil Survey Data
• FAC-Neutrai Test
Depth to Saturated Soil: 'f
(in.)
• Other (Explain in Remarks)
Remarks:
JV11.J
IMap Unit Name
(Series and Phase):
Drainage Class:
Taxonomy
Field Observations
al
Confirm Mapped Type? ■Yes N No
(Subgroup):
Profile Descriptions:
Depth Matrix Color
(inches) Horizon (Munsell Moist)
Mottle Colors Mottle Abundance/ Texture, Concretions,
(Munsell Moist) Size/Contrast Structure, etc,
Ito" ei k t V2- 2
)1
- -.-° t 1 h,
u
Hydric Soil Indicators:
❑ Histosol
❑ Histic Epipedon
❑ Sulfidic Odor
❑ Aquic Moisture Regime
❑ Reducing Conditions
5 <leyed or Low-Chroma Colors
❑ Concretions
❑ High Organic Content in Surface Layer in Sandy Soils
❑ Organic Streaking in Sandy Soils
❑ Listed on Local Hydric Soils List
❑ Listed on National Hydric Soils List
❑ Other (Explain in Remarks)
Remarks:
•
WETLAND DETERMINATION
Hydrophytic Vegetation Present? In< ❑No (Check)
Wetland Hydrology Present? es No
Hydric Soils Present? es ❑No
Is this Sampling Point Within a Wetland?
(Check
es ❑No
Remarks
Approved by HQUSACE 3/92
Forms version 1/02
❑ Recorded Data (Describe in Remarks):
❑Stream, Lake, or Tide Gauge
r
�-Herial Photographs
rl.a.tA ..�it
Wetland Hydrology Indicators:
Primary Indicators:
• Inundated
❑ Other
t;` 0
°`10.
2. i 4P,0° 4Ce - :.� �
Project/Site:
• Saturated in Upper 12 Inches
❑ No Recorded Data Available
r-r.4.>.l5.
4.4,`14‘s '::r.1u.,. 9E FiA-c,u,
p
Applicant/Owner: hl Ea� _• 1 (
• Water Marks
State:
C
14.
• Drift Lines
15.
8.
Do Normal Circumstances exist on the site?
Is the site significantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
• Sediment Deposits
Field Observations:
ID:
Transect ID:
Plot ID:
Remarks:
• Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Depth of Surface Water:
—,
(in.)
• Oxidized Root Channels in Upper 12 Inches
■ Water -Stained Leaves
■ Yes
P
Depth to Free Water in Pit:
i
(in.)
■ Local Soil Survey Data
■ FAC -Neutral Test
Depth to Saturated Soil:
>) jo
(in.)
■ Other (Explain in Remarks)
Remarks:
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
V s 4
VELE IAI WN
rl.a.tA ..�it
Dominant Plant Species Stratum Indicator
Date:
�'1- \ C '
t;` 0
°`10.
2. i 4P,0° 4Ce - :.� �
Project/Site:
County:
�vg?d`n n
r-r.4.>.l5.
4.4,`14‘s '::r.1u.,. 9E FiA-c,u,
p
Applicant/Owner: hl Ea� _• 1 (
p
S' L c.
State:
C
14.
` _ ,�, � ,��,—/�,
Investigator: j int WJ �`i l__A--�'€
15.
8.
Do Normal Circumstances exist on the site?
Is the site significantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
Ares
■NoCommunity
ID:
Transect ID:
Plot ID:
Remarks:
',Yes
(12-
�
— \t
.. A
■ Yes
V s 4
VELE IAI WN
Dominant Plant Species Stratum Indicator
Dominant Plant Species Stratum Indicator
g� T
1. e;if" a 24-" - CIA
9.
t;` 0
°`10.
2. i 4P,0° 4Ce - :.� �
3. e AR 1E
11.
r-r.4.>.l5.
4.4,`14‘s '::r.1u.,. 9E FiA-c,u,
12.
5 ,.
13.
6.
14.
7.
15.
8.
16.
Percent of Dominant Species that are OBL, FACW or FAC
(excluding FAC-).
Remarks:
or
SOILS
Drainage Class:
I Map Unit Name
(Series and Phase):
'
Taxonomy (Subgroup):
Field Observations
Confirm Mapped Type? ■Yes • No
Profile Descriptions:
Depth Matrix Color
(inches) Horizon (Munsell Moist)
Mottle Colors Mottle Abundance/ Texture, Concretions,
Moist) Size/Contrast Structure, etc,
(Munsell
VI Ia Ira 2.! 7
— (-€A 0 a
-1
Hydric Soil Indicators:
❑ Histosol
❑ Histic Epipedon
❑ Sulfidic Odor
❑ Aquic Moisture Regime
❑ Reducing Conditions
❑ Gleyed or Low-Chroma Colors
❑ Concretions
❑ High Organic Content in Surface Layer in Sandy Soils
❑ Organic Streaking in Sandy Soils
❑ Listed on Local Hydric Soils List
❑ Listed on National Hydric Soils List
❑ Other (Explain in Remarks)
Remarks:
I
WETLAND DETERMINATION
Hydrophytic Vegetation Present? ['Yes o Check)
Wetland Hydrology Present? ❑Yes LJ10
Hydric Soils Present? ❑Yes
(Check)
Is this Sampling Point Within a Wetland? OYes 024
Remarks
Approved by HQUSACE 3/92
Forms version 1/02
3
s
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
i t
VEGETATION i
Dominant Plant Species Stratum Indicator
Dominant Plant Species Stratum Indicator
1. (1 tb,.k`fz (P -k- n F
Project/Site:
2. r..1. gi"... k 1'112_0-
Date: ot 11 2— q-- C'
�
County: (:!' !:J.iti
Applicant/Owner:
1\ ;
1
C�" L
State: a
Investigator:
GLIV
15.
6.
Do Normal Circumstances exist on the site?
Is the site significantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
es IN No
Community ID: (Are.vtic� (l6r St -
Transect ID:
■YesIIo
Plot ID:
■Yes [ijAer/
• Drainage Patterns in Wetlands
i t
VEGETATION i
Dominant Plant Species Stratum Indicator
Dominant Plant Species Stratum Indicator
1. (1 tb,.k`fz (P -k- n F
9.
2. r..1. gi"... k 1'112_0-
10.
tC ekecierg
I '
r,11 -C)..3
11.
4.
12.
5.
13.
6.
14.
7.
15.
6.
16.
• Drift Lines
Percent of Dominant Species that are OBL, FACW or FAC
FAC-).
(excluding
Remarks:
... LI. 11,1••,0,1.4 .
❑ Recorded Data (Describe in Remarks):
Wetland Hydrology Indicators:
II St"am, Lake, or Tide Gauge
Primary I dicators:
erial Photographs
Inunda ed
IIS Other
aturated in Upper 12 Inches
❑ No Recorded Data Available
• Water Marks
• Drift Lines
• Sediment Deposits
Field Observations:
• Drainage Patterns in Wetlands
tt
Secondary Indicators (2 or more required):
• Oxidized Root Channels in Upper 12 Inches
Depth of Surface Water: %9',0 _
(in.)
• Water -Stained Leaves
Depth to Free Water in Pit:
(in.)
• Local Soil Survey Data
• FAC -Neutral Test
(in.)
Depth to Saturated Soil: "---
• Other (Explain in Remarks)
Remarks:
,,OILS
Map Unit Name
(Series and Phase):
Taxonomy (Subgroup):
Drainage Class:
Field Observations
Confirm Mapped Type? ❑Yes ❑ No
II
Profile Descriptions:
Depth Matrix Color Mottle Colors Mottle Abundance/
(inches) Horizon (Munsell Moist) (Munsell Moist) Size/Contrast
N�B ) �
2,1 ��5 t,a
Texture, Concretions,
Structure, etc,
‘C 4 r\
Hydric Soil Indicators:
❑ Histosol
❑ Histic Epipedon
Diulfidic Odor
❑ Aquic Moisture Regime
D ucing Conditions
Gleyed or Low-Chroma Colors
❑ Concretions
❑ High Organic Content in Surface Layer in Sandy Soils
❑ Organic Streaking In Sandy Soils
❑ Listed on Local Hydric Soils List
❑ Listed on National Hydric Soils List
❑ Other (Explain in Remarks)
Remarks:
y %uwI evorr s
WETLAND DETERMINATION
r
Hydrophytic Vegetation Present? Is No (Check)
Wetland Hydrology Present? s ❑No
Hydric Soils Present?
es ❑No
Is this Sampling Point Within a Wetland?
(Check)
Yes ❑No
Remarks
Approved by HQUSACE 3/92
Forms version 1/02
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site:
Applicant/Owner:
Investigator:
Do Normal Circumstances exist on the site?
Is the site significantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
%Ere; ,❑No
❑Yes De'
['Yes
Date:
County:
State: C�
Community ID: U p tj� t t
Transect ID: -
Plot ID:
VEGETATION '" �'
.1.
Dominant Plant Species Stratum Indicator
Dominant Plant Species Stratum
,Indicator,
9,66... 0. %t il� y , r''.m.t21v
9.
.
�� p
l 'r'} Z.' ir,r1.
2. i i.0 ii re
10.
t'.
3. -a =; 'b4`.ii 91.-; ; c U V"._,
11.
-2
4.
12.
5.
13.
6.
14.
7.
15.
8.
16.
■ Sediment Deposits
Percent of Dominant Species that are OBL, FACW or FAC
(excluding FAC-).
Remarks:
❑ Recorded Data (Describe in Remarks):
❑ Str , Lake, or Tide Gauge
Wetland Hydrology Indicators:
Primary Indicators:
Aerial Photographs
❑ Inundated
❑ Other
■ Saturated in Upper 12 Inches
❑ No Recorded Data Available
• Water Marks
■ Drift Lines
■ Sediment Deposits
Field Observations:
■ Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Depth of Surface Water:
(in.)
■ Oxidized Root Channels in Upper 12 Inches
■ Water -Stained Leaves
Depth to Free Water in Pit:
> p
(in.)
■ Local Soil Survey Data
■ FAC -Neutral Test
p
Depth to Saturated Soil:
'7 1 L
(in.)
■ Other (Explain in Remarks)
Remarks:
t
;;nit Name
(Series and Phase):
Drainage Class:
Taxonomy (Subgroup):
Field Observations
Confirm Mapped Type? IIS Yes 0 No
Profile Descriptions:
Depth Matrix Color
(inches) Horizon (Munsell Moist)
Mottle Colors Mottle Abundance/ Texture, Concretions,
(Munsell Moist) Size/Contrast Structure, etc,
Hydric Soil Indicators:
❑ Histosol
❑ Histic Epipedon
❑ Concretions
❑ High Organic Content in Surface Layer in Sandy Soils
❑ Organic Streaking in Sandy Soils
❑ Listed on Local Hydric Soils List
❑ Listed on National Hydric Soils List
❑ Other (Explain in Remarks)
• Sulfidic Odor
❑ Aquic Moisture Regime
❑ Reducing Conditions
❑ Gleyed or Low-Chroma Colors
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present? ❑Yes Co ,- Check)
Wetland Hydrology Present? ❑Yes E1 0
Hydric Soils Present? ❑Yes I to
(Check)
Is this Sampling Point Within a Wetland?LJYes o
Remarks
Approved by HQUSACE 3/92
Forms version 1/02
•
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site:
Applicant/Owner:
Invest. • ator:
. . L tel.i
•C�.t�
AL1_C
Date: LA r) --q-
County: (=7.
State:
Do Normal Circumstances exist on the site?
Is the site significantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
f needed, e •Iain on reverse.)
es ❑Nom Community ID:
:Nes
Transect ID: _
DYes Plot ID: 5)
VEGETATION ` '
Dominant Plant Species Stratum Indicator
Dominant Plant Species Stratum Indicator
■ Inundated
g
1. f Z :_a%•Pl.: \ as -.‘..! &9) 04-..3.-,,
9.
❑ No Recorded Data Available
C c
2.
10.
Field Observations:
..--'
Depth of Surface Water:
3.
11.
,,Sediment
WDrainage Patterns in Wetlands
Secondary Indicators (2 or more required):
4.
12.
(in.)
5.
13.
(in.)
6.
14.
7.
15.
8.
16.
Percent of Dominant Species that are OBL, FACW or FAC 1
excludin• FAC-
.
Remarks:
rl 1 vnvLvv 1
❑ Recorded Data (Describe in Remarks):
❑_9rAam, Lake, or Tide Gauge
Aerial Photographs
Wetland Hydrology Indicators:
Primary Indicators:
■ Inundated
• Other
• Saturated in Upper 12 Inches
❑ No Recorded Data Available
■ Water Marks
■ Drift Lines
® Deposits
Field Observations:
..--'
Depth of Surface Water:
(in.)
,,Sediment
WDrainage Patterns in Wetlands
Secondary Indicators (2 or more required):
■ Oxidized Root Channels in Upper 12 Inches
■ Water -Stained Leaves
Depth to Free Water in Pit: °� 'g€D
(in.)
• Local Soil Survey Data
■ FAC -Neutral Test
Depth to Saturated Soil: e;''`
(in.)
• Other (Explain in Remarks)
Remarks:
,;i
SOILS
Map Unit Name
(Series and Phase):
Taxonomy (Subgroup):
Drainage Class:
Field Observations
Confirm Mapped Type? DYes ❑ No
Profile Descriptions:
Depth Matrix Color Mottle Colors Mottle Abundance/ Texture, Concretions,
(inches) Horizon (Munsell Moist) (Munsell Moist) Size/Contrast Structure, etc,
V r:.a C. 6
0 0
Hydric Soil Indicators:
❑ Histosol
❑ Histic Epipedon
❑ Sulfidic Odor
❑ Aquic Moisture Regime
❑ educing Conditions
Gleyed or Low-Chroma Colors
❑ Concretions
❑ High Organic Content in Surface Layer in Sandy Soils
❑ Organic Streaking in Sandy Soils
❑ Listed on Local Hydric Soils List
❑ Listed on National Hydric Soils List
❑ Other (Explain in Remarks)
Remarks:
5.} n:'ivy,. i, ^�
WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Wetland Hydrology Present?
Hydric Soils Present?
_ '■No (Check)
G es No
s ❑No
(Check)
s this Sampling Point Within a Wetland? atIrONo
Remarks
dry \ deb c Le- 4y/°
Approved by HQUSACE 3/92
Forms version 1/02
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Ve(it1A1JUN ,--,,,,-
`'"
Dominant Plant Species Stratum Indicator
ME -Aerial Photographs
Project/Site: E) (j -d ,_!
Tai?_
9.
Date: ,,,
.1-p,
2. - f .:A." jj5�c, is 7A C ..
County: (CSJ�
J
�`i OA— .a.l
t C i.t L9. t-
Applicant/Owner:
Investigator: kG1. ! 5k..t-
�sP A-
oPr is 1 Q
12.
State:
,,ei .vAt..
5. CA e'0. --t.4.,13.
Do Normal Circumstances exist on the site?
Is the site significantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
es ■ No
community
ID: 1 k e'
t✓U.
Transect ID:
15.
■Yes
Plot ID:
16.
■Yes]lo
Secondary Indicators (2 or more required):
Ve(it1A1JUN ,--,,,,-
`'"
Dominant Plant Species Stratum Indicator
ME -Aerial Photographs
Dominant Plant Species Stratum Indicator
1. , , tLst-e V A,A e i LL., UPI--
9.
❑ Other
.1-p,
2. - f .:A." jj5�c, is 7A C ..
10.
• Saturated iri Upper 12 Inches
es?'
3._t.tP'51 t it \\
11.
�sP A-
oPr is 1 Q
12.
,,ei .vAt..
5. CA e'0. --t.4.,13.
• Drift Lines
6.
14.
• Sediment Deposits
7.
15.
8.
16.
Secondary Indicators (2 or more required):
Depth of Surface Water:
Percent of Dominant Species that are OBL, FACW or FAC 0
(excluding FAC-).
2
Remarks:
❑ Recorded Data (Describe in Remarks):
❑ S am, Lake, or Tide Gauge
Wetland Hydrology Indicators:
Primary Indicators:
ME -Aerial Photographs
• Inundated
❑ Other
• Saturated iri Upper 12 Inches
❑ No Recorded Data Available
• Water Marks
• Drift Lines
• Sediment Deposits
Field Observations:
• Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Depth of Surface Water:
-- ,
(in.)
• Oxidized Root Channels in Upper 12 Inches
• Water -Stained Leaves
pp
• Local Soil Survey Data
Depth to Free Water in Pit:
> C 6
(in.)
E
• FAC -Neutra) Test
• Other (Explain in Remarks)
Depth to Saturated Soil:
(�
(in.)
Remarks:
bVILJ
Map Unit Name
(Series and Phase):
Drainage Class:•
Taxonomy (Subgroup):
Field Observations
Confirm Mapped Type? ■ Yes ❑ No
Profile Descriptions:
Depth Matrix Color
(inches) Horizon (Munsell Moist)
Mottle Colors Mottle Abundance/ Texture, Concretions,
(Munsell Moist) Size/Contrast Structure, etc,
R u l(.- la. `- !-7.,
------ (1.44A
Hydric Soil Indicators:
❑ Histosol
❑ Histic Epipedon
❑ Sulfidic Odor
❑ Aquic Moisture Regime
❑ Reducing Conditions
❑ Gleyed or Low-Chroma Colors
❑ Concretions
❑ High Organic Content in Surface Layer in Sandy Soils
❑ Organic Streaking in Sandy Soils
❑ Listed on Local Hydric Soils List
❑ Listed on National Hydric Soils List
❑ Other (Explain in Remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present? ❑Yes
Wetland Hydrology Present? ❑Yes
Hydric Soils Present? ❑Yes
o(Check)
(Check)
Is this Sampling Point Within a Wetland? pees 11114o"
Remarks
Approved by HQUSACE 3/92
Forms version 1/02
•
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site:
J S M !, \/.
CU.. C
Dominant Plant Species Stratum Indicator
Date: � a$ X00
9.
11.
12.
13.
14.
15.
16.
Applicant/Owner: B"-( VC S +
^I tP S LLC..,
1 v1
County: �Cj( .)
1 t FA e, (.^-/
1
••
Investigator: la t 17 t�'�.L. �`
t
UU
State: Co
5.
Do Normal Circumstances exist on the site?
is the site significantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
fres
■No
'NtS
10
Community ID: 02k-tDs--a\ rc\lr..
Transect ID:
• Water Marks
le Yes
Plot ID: G'
1.
• Yes
f- '
VGVG IIl11V1•
Stratum Indicator
Dominant Plant -R-
Dominant Plant Species Stratum Indicator
_Species
1. (1.1/7" i�1 '�` € Al L P ),"tom 44e 0 ei
9.
11.
12.
13.
14.
15.
16.
❑ Aerial Photographs
,
2.7.7406„, `&A.\ \ (46.. if 1t10.
1 t FA e, (.^-/
• Inundated
4.
5.
6.
❑ No Recorded Data Available
7.
6.
• Water Marks
Percent of Dominant Species that are OBL, FACW or FAC
(excluding FAC-). •-c.--
--''''\'8,-,
Remarks:
CI
❑ Recorded Data (Describe in Remarks):
❑ Stream, Lake, or Tide Gauge
Wetland Hydrology Indicators:
Primary Indicators:
❑ Aerial Photographs
• Inundated
❑ Other
• Saturated in Upper 12 Inches
❑ No Recorded Data Available
• Water Marks
• Drift Lines
■ ent Deposits
Field Observations:
Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Depth of Surface Water:
(in.)
• Oxidized Root Channels in Upper 12 Inches
• Water -Stained Leaves
1 ar
Depth to Free Water in Pit: ' 4
(in.)
• Local Soil Survey Data
• FAC -Neutral Test
Depth to Saturated Soil: g'i
(in.)
• Other (Explain in Remarks)
Remarks:
/
L)
/�'
p
�`y
SOILS
Map Unit Name
(Series and Phase):
Taxonomy (Subgroup):
Drainage Class:
Field Observations
Confirm Mapped Type? ❑Yes ❑ No
Profile Descriptions:
Depth Matrix Color Mottle Colors Mottle Abundance/ Texture, Concretions,
(inches) Horizon Munsell Moist (Munsell Moist) Size/Contrast Structure, etc,
C) p 6
Hydric Soil Indicators:
❑ Histosol ❑ Concretions
❑ Histic Epipedon ❑ High Organic Content in Surface Layer in Sandy Soils
❑ Sulfidic Odor ❑ Organic Streaking in Sandy Soils
❑ Aquic Moisture Regime 0 Listed on Local Hydric Soils List
❑ yieducing Conditions ❑ Listed on National Hydric Soils List
Gleyed or Low-Chroma Colors ❑ Other (Explain in Remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present? es No (Check)
Wetland Hydrology Present? es DNo
Hydric Soils Present? Dees ❑No
Remarks
Is this Sampling Point Within a Wetland?
C.Anc Nr-ev, t % _ i f r t "mac
(Check)
Approved by HQUSACE 3/92
Forms version 1/02
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site:
Applicant/Owner:
Investigator:
(
\tl
LLC
oL 6,11-4
Do Normal Circumstances exist on the site?
Is the site significantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
D,No®
:hies
ales Pktel
'Date:
C,- vie
County:
State:
Community ID: be
Transect ID:
Plot ID:
VEGETATION
Do tnant Plant Species
1.i.-44
2- .q; sl
3.
4.
5.
6.
7.
B.
Stratum
Indicator
of
Percent of Dominant Species that are OBL, FACW or FAC
(excluding FAC-).
Remarks:
Dominant Plant Species
9.
10.
11.
12.
13.
14.
15.
16.
Stratum Indicator
nYUlMVLOUT
❑ Recorded Data (Describe in Remarks):
❑ 12,, , Lake, or Tide Gauge
Aerial Photographs
❑ Other
❑ No Recorded Data Available
Wetland Hydrology Indicators:
Primary Indicators:
• Inundated
• Saturated in Upper 12 Inches
■ Water Marks
• Drift Lines
Field Observations:
(in.)
❑ Sediment Deposits
■ Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
• Oxidized Root Channels in Lipper 12 Inches
• Water -Stained Leaves
Depth of Surface Water:"
e
Depth to Free Water in Pit: , it 4.
(in.)
• Local Soil Survey Data
• FAC -Neutral Test
Depth to Saturated Soil: 7 / t
(In.)
• Other (Explain in Remarks)
Remarks:
11
,UI LJ
iMap Unit Name
(Series and Phase):
Taxonomy (Subgroup):
Drainage Class:
Field Observations
Confirm Mapped Type? DYes 0 No
Profile Descriptions:
Depth
(inches) Horizon
Matrix Color
(Munsell Moist)
1r P-74
Mottle Colors Mottle Abundance/
(Munsell Moist) Size/Contrast
Texture, Concretions,
Structure, etc,
Hydric Soil Indicators:
❑ Histosol
❑ Histic Epipedon
❑ Sulfidic Odor
❑ Aquic Moisture Regime
O Reducing Conditions
❑ Gleyed or Low-Chroma Colors
Concretions
High Organic Content in Surface Layer in Sandy Soils
Organic Streaking in Sandy Soils
Listed on Local Hydric Soils List
Listed on National Hydric Soils List
Other (Explain in Remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Wetland Hydrology Present?
Hydric Soils Present?
DYes
DYes
DYes
(Check)
Is this Sampling Point Within a Wetland? (=Yes
Remarks
Approved by HQUSACE 3/92
Forms version 1/02
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
VtCit1AlION
Dominant Plant Species Stratum Indicator
-
yi 1 a
Date: Etl jiS-S' '4)+r,�S
tA-t Nk/ai
Project/Site:
Applicant/Owner: { JD
44°101,1A1�,' L—L
County:i a
0
Ci
Investigator: ; ✓ brXs4.-k-t-L .
-
State:
Do Normal Circumstances exist on the site?
Is the site significantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
es
■ No
No
pee'
Community ID: 4�--t"qtrik.
*e4
Transect ID:
14.
•Yes
Plot ID: —
a.- ° -
■ Yes
Field Observations:Drainage
16.
VtCit1AlION
Dominant Plant Species Stratum Indicator
Dominant Plant Species Stratum Indicator
yi 1 a
a
PWA;rial Photographs
21—‘4,01e/..,_ � 114t Z 4t
10.
3. A t
11.
4.
❑ No Recorded Data Available
12.
5.
• Water Marks
13.
6.
14.
7.
15.
8.
Field Observations:Drainage
16.
Patterns in Wetlands
Percent of Dominant Species that are OBL, FACW or FAC
(excluding FAC-).
9 0 7 0 4°
Remarks:
Depth of Surface Water: _�
❑ Recorded Data (Describe in Remarks):
❑ Stream, Lake, or Tide Gauge
Wetland Hydrology Indicators:
Primary Indicators:
PWA;rial Photographs
• Inundated
❑ Other
• Saturated in Upper 12 Inches
❑ No Recorded Data Available
• Water Marks
• Drift Lines
• SeOpent Deposits
Field Observations:Drainage
Patterns in Wetlands
Secondary Indicators (2 or more required):
Depth of Surface Water: _�
(in.)
• Oxidized Root Channels in Upper 12 Inches
g
Depth to Free Water in Pit: >C 4
(in.)
• Water -Stained Leaves
• Local Soil Survey Data
• FAC -Neutral Test
Depth to Saturated Soil: 1
(in.)
• Other (Explain in Remarks)
Remarks:
°J .sQ
''l
'� fl ;tea s,,,,,,,, -.\,,,R\ --e.
SOILS
Map Unit Name
(Series and Phase):
Drainage Class:
II
1
Taxonomy (Subgroup):
Field Observations
Confirm Mapped Type? In Yes ■ No
Profile Descriptions:
Depth Matrix Color
(inches Horizon (Munsell Moist)
Mottle Colors Mottle Abundance/ Texture, Concretions,
(Munsell Size/Contrast Structure, etc,
:,i'I p 1 e- 5i.
�M,oist)
+
r . ere,'f .moo` °. ;al) `
b,
Hydric Soil Indicators:
❑ Histosol
❑ Histic Epipedon
❑ Sulfidic Odor
❑ Aquic Moisture Regime
❑ R ucing Conditions
leyed or Low-Chroma Colors
'
■ Concretions
❑ High Organic Content in Surface Layer in Sandy Soils
❑ Organic Streaking in Sandy Soils
❑ Listed on Local Hydric Soils List
❑ Listed on National Hydric Soils List
❑ Other (Explain in Remarks)
Remarks:
Pm,* -,
WETLAND DETERMINATION
Hydrophytic Vegetation Present? ❑No (Check)
Wetland Hydrology Present? �k' ❑No
Hydric Soils Present? es ❑No
Is this Sampling Point Within a Wetland?
(Check)
es ❑No
Remarks
Approved by HQUSACE 3/92
Forms version 1/02
•
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
VEGETATION
Dominant Plant Species Stratum Indicator
Dominant Plant Species Stratum Indicator
1. tu5 ,yrnl iii Ti--gu to L
9.
❑ S , Lake, or Tide Gauge
Project/Site: S 1A_D lin‘ A6 ,
cgv-`(
Aerial Photographs
Date: i,, 1 `�:-- s'
/
County: (C)��t 04
ApplicanUOwner: r1,"iP'� 11�,t� ,�j,,,f,, +b 104,4_1
LL-�' ,
State: Cr)
L
Investigator: Cl. (✓ r1..si.t �,:.C..�.6 'e._ b
.4's 4
5.
Do Normal Circumstances exist on the site?
Is the site significantly disturbed (Atypical Situation)?
Is the area a potential Problem Area?
(If needed, explain on reverse.)
es
■No
liPlot
CommunityID:
Transect ID:
ID:
T
`"
`
"e'EPL..
8.
16.
■Yeso�
Depth of Surface Water:
' . t a
tei
IN Yes
• Water -Stained Leaves
Depth to Free Water in Pit: )1(0
(in.)
■ Local Sod Survey Data
• FAC -Neutral Test
% /
■ Other (Explain in Remarks)
)Depth to Saturated Soil: 7 1
VEGETATION
Dominant Plant Species Stratum Indicator
Dominant Plant Species Stratum Indicator
1. tu5 ,yrnl iii Ti--gu to L
9.
❑ S , Lake, or Tide Gauge
i
2. 3.aisig4, i e 5!^:F,. PAC., .,
10.
Aerial Photographs
aceta
llA,A1,0...1:16°.,,,At, () j7 L _
11.
❑ Other
.
4. 's i.t,$ t\ 'elk,
12.
❑ No Recorded Data Available
.4's 4
5.
13.
6.
14.
7.
15.
Field Observations:
8.
16.
Secondary Indicators (2 or more required):
Depth of Surface Water:
Percent of Dominant Species that are OBL, FACW or FACe
(excluding FAC-). Com"
tei
I..✓..V vyMI
❑ Recorded Data Describe in Remarks):
Wetland Hydrology Indicators:
❑ S , Lake, or Tide Gauge
Primary Indicators:
Aerial Photographs
• Inundated
❑ Other
• Saturated in Upper 12 Inches
❑ No Recorded Data Available
• Water Marks
• Drift Lines
• Sediment Deposits
Field Observations:
• Drainage Patterns in Wetlands
Secondary Indicators (2 or more required):
Depth of Surface Water:
(in.)
■ Oxidized Root Channels in Upper 12 Inches
• Water -Stained Leaves
Depth to Free Water in Pit: )1(0
(in.)
■ Local Sod Survey Data
• FAC -Neutral Test
% /
■ Other (Explain in Remarks)
)Depth to Saturated Soil: 7 1
(in.)
Remarks:
SOILS
!Map Unit Name
(Series and Phase):
Taxonomy (Subgroup):
Drainage Class:
Field Observations
Confirm Mapped Type?
❑Yes 0 No
Profile Descriptions:
Depth Matrix Color
(inches) Horizon (Munsell Moist)
Mottle Colors Mottle Abundance/ Texture, Concretions,
(Munsell Moist) Size/Contrast Structure, etc,
Hydric Soil Indicators:
❑ Histosol
❑ Histic Epipedon
❑ Sulfidic Odor
❑ Aquic Moisture Regime
❑ Reducing Conditions
❑ Gleyed or Low-Chroma Colors
Concretions
High Organic Content in Surface Layer in Sandy Soils
Organic Streaking in Sandy Soils
Listed on Local Hydric Soils List
Listed on National Hydric Soils List
Other (Explain in Remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytic Vegetation Present?
Wetland Hydrology Present?
Hydric Soils Present?
❑Yes to heck)
❑Yes
❑Yes
(Check)
Is this Sampling Point Within a Wetland? Dees ti
Remarks
Approved by HQUSACE 3/92
Forms version 1/02
•
•
•
o
Appendix 3 Correspondence with USACE
REPLY TO
ATTENTION OF
DEPARTMENT OF THE ARMY
U.S. ARMY ENGINEER DISTRICT, SACRAMENTO
CORPS OF ENGINEERS
1325 J STREET
SACRAMENTO. CALIFORNIA 95814-2922
September 1, 1999
Regulatory Branch (199875502)
Ms. Blair Leisure
Wright Water Engineers
2490 West 26th Avenue, Suite 100A
Denver, Colorado 80211
Dear Ms. Leisure:
We are responding to your written request dated August 20,
1999, on behalf of Chenoa, for verification of a jurisdictional
delineation on the Spring Valley Ranch property. This property,
previously referred to as Aspen Springs, contains 5,908 acres
(including Landis Creek and the Spring Valley Drainage) and is
located approximately three miles south of Glenwood Springs
within Sections 28, 29 And 30, Township 6 South, Range 88 West,
Garfield County, Colorado.
Based on site inspections by Susan Bachini Nall of this
office in November 1998 and May 1999, we have determined that
your jurisdictional and wetland boundary delineations are
accurate. The plan referenced below is an accurate depiction of
the limits of Federal jurisdiction under Section 404 of the Clean
Water Act. The plan is labeled:
Figure 2
Spring Valley Ranch Wetlands
Date: 8/20/99
This verification is valid for a period of five years from
the date of this letter and is based on information supplied, by
r
you. If that information proves to be false or incorrect, we
will adjust our determination accordingly. We have assigned
number 199875502 to this determination. Please contact Ms. Nall
and refer to this number if you have any questions regarding this
matter and for permit requirements at (970) 243-1199, extension
16 or the address below.
Nure
N.- hwestern Colorado
atory Office
402 Rood Avenue, Room 142
Grand Junction, Colorado 81501-2563
-2 -
Copy Furnished:
Mr. Mark Bean, Garfield County, 109 8th Street, Suite 303,
Glenwood Springs, Colorado 81601
•
EEC
Wright Water Engineers, Inc.
2490 West 26th Ave., Suite 100A
Denver. Colorado 80211
(303) 480-1700 TEL
(303) 480-1020 FAX
Ms. Sue Nall
U.S. Army Corps of Engineers
402 Rood Avenue, Room 142
Grand Junction, Colorado 81501-2563
August 30, 1999
Re: Wetland Delineation and Permitting for Chenoa
Latitude 39°30'00", Longitude 107°12'00"
Dear Sue:
www.wrightwater.com/wwe/
e{nail: krwright®wrightwater. Com
This report presents the results of a wetland delineation performed by Wright Water Engineers, Inc.
(WWE) for a proposed development named Chenoa located three miles south of Glenwood Spring.
The Chenoa development has been previously known as Aspen Springs and Spring Valley Ranch.
On behalf of Chenoa, WWE is seeking a written jurisdictional determination for the wetlands as
delineated on Chenoa by WWE wetland scientists. The wetlands were staked in the field in late
October -early November 1998. This staking was subsequently surveyed by Jerome Gamba &
Associates, Inc. You initially observed the delineations in November 1998, but due to snowfall and
the large size of the property, you requested to observe the wetlands in May 1999. We therefore
met at Chenoa on May 18, 1999 to observe the wetland delineations.
The property consists of approximately 5,908 acres and is located approximately three miles south
of the City of Glenwood Springs. The property spans several sections within Range 88 West,
Township 6 South of the 6th P.M. in Garfield County (Latitude 39°30'00", Longitude 107°12'00")
(Figure 1). The ranch consists of two distinct physiographic regions: 1) a relatively flat valley
bottom consisting of a hay meadow with a creek and springs in the valley bottom, and 2) relatively
steep and well -drained mountainside with generally south -facing slopes. The main water features
on the ranch include Landis Creek and the drainage along the bottom of Spring Valley. There are
also several irrigation/stockponds on the ranch, the largest of which is Hopkins Reservoir in the
headwaters of Landis Creek. Landis Creek was historically diverted before 1900 to fill two
stockponds, one of which allowed flow to continue to the valley bottom (Figure 2). The lower
section of Landis Creek receives only enough flow to fill a small pond named Shaky Lake (Figure
2). No wetlands or evidence of recent flow were evident along Landis Creek south of Shaky Lake.
Chenoa has been historically, and is currently, a working cattle ranch with associated hay fields and
upper dryland wheat fields. A historic homesite is located in the upper dryland wheat fields from
the late 1800s early 1900s. The proposed plan for the ranch is to leave the valley bottom for
hayfield and cattle operations. No development is planned for the lower valley floor
(approximately 1,070 acres). A residential community is proposed to be constructed in the upper
GLENWOOD SPRINGS DURANGO
(970) 259-7411 TEL (970) 259-8758 FAX
(970) 945-7755 TEL (970) 945-9210 FAX
Ms. Sue Nall
August 30, 1999
Page 2
dry wheat fields. This community will be composed of approximately 420 lots averaging 3.2 acres
in size. Some of the lots are proposed around two 18 -hole golf courses. All wetlands in the valley
floor and in the vicinity of these higher density residences and golf courses have been delineated by
WWE and observed by you.
An additional 83 lots are planned. Because each of these lots is at least 35 -acres in size, the
residential footprint can easily avoid wetland impacts. Wetlands can be delineated on specific lots
as needed during future development.
WETLAND DELINEATION
Wetlands were identified using the methods and criteria in the Corps of Engineers Wetland
Delineation Manual (U.S. Department of the Army 1987), which is the wetlands manual currently
in use. Field inspections of the site were conducted by Blair Leisure in late October and early
November 1998 and May 1999 at which time vegetation, soils, hydrology and other conditions of
the site were observed. Observations were recorded on "Wetland Data Sheets" and the wetland
boundaries were sequentially staked in the field to allow for surveying. Wetland Data Sheets are
also attached to this letter report.
FINDINGS
Based on our site visit on May 18, 1999, you identified jurisdictional wetlands on the subject
property. These wetlands are indicated in Figures 2, 3 and 4. Specifically, three areas were
identified and include:
1. The entire wetland of the valley floor,
2. A 30 -foot wide wetland corridor along the complete reach of Landis Creek, and
3. Three wetland pockets located in the upper dryland wheat agricultural fields, and along the
natural reach of the historic creek.
The results of these delineation's and jurisdictional determinations are discussed below. Figure 2 is
a map prepared by Gamba & Associates of the WWE survey, which shows the existing wetlands on
the subject property. The numbers found on this map correspond to the wetland data points
collected in the field. The following is a description of the wetlands on the subject property.
Lower Valley Floor Wetland
The largest area of wetland on the property occurs along the bottom of the valley in the southwest
portion of Chenoa (Figure 4). Dominant wetland vegetation for this area includes reed canarygrass
(Phalaris arundinacae), sedges (Carex spp.), and Baltic rush (Juncus balticus). The wetland is
sustained by springs, surface water, and potentially a shallow groundwater table.
•
Ms. Sue Nall
August 30, 1999
Page 3
The vegetation communities in this area range from irrigated hayfields to wetland swales and
marshes. Saturated soils in the wetlands exist generally at the surface. Soil pits dug outside the
wetland area are ordinarily not saturated in the upper 16 inches.
A minimum of 27 soil pits were dug to aid in correct delineation of this wetland. Soils in the
wetlands are generally dark silty loams. These dark soils are identified as soil color 10YR 2/1 and
range to soil color 10YR 4/1 (Munsell 1975). Wetland soil pits indicated signs of mottling and
gleying. Soils outside of the wetland are also silty loams but lighter in color ranging from 10YR
3/2 to 5YR 3/2. Soils were an important distinguishing feature in the delineation of this wetland.
You verbally agreed with this wetland delineation after observing the wetland line on May 18,
1999.
Landis Creek
WWE initially walked Landis Creek up to Hopkins Reservoir in October 1998. A wetland exists
on either side of Landis Creek above Shaky Lake. This riparian wetland varies in width between 4
feet and 60 feet in width, averaging 30 feet in width. The majority of the creek has less than a 30 -
foot wide riparian wetland associated with the creek. No wetlands were observed around Hopkins
Reservoir or either of the two stockponds off the Landis Creek diversion.
WWE wetland biologist Blair Leisure and you observed the lower reach of Landis Creek and the
agricultural diversion on May 18, 1999. You verbally agreed to the proposed 30 -foot wetland
buffer for the entire reach of Landis Creek. This buffer will include the reach of Landis Creek
below Shaky Lake, where no wetlands or evidence of recent flow exist. This 30 -foot buffer will
allow for the return of Landis Creek to its historic flow if the agricultural diversion is removed.
You suggested that if development is planned near Landis Creek, associated wetlands could be
delineated to more precisely define their location and size.
Upper Agricultural Fields
There is an unnamed creek with an associated linear riparian wetland of varying width in the
Hopkins Homestead watershed (Figure 3). This creek originates from a spring and has been
historically ditched through the two upper dryland wheat fields. The ditch is refined every spring,
but due to cattle activity, is flattened by late summer. Water from this channel disperses due to
trampling from livestock by the end of summer. The creek flows through what appears to be its
natural course between the two wheat fields, with a wetland fringe of approximately 4 feet on
average. This natural drainage is distinctly ditched at the point where the creek crosses the
agricultural fields. At the time of our site visit in May, the ditch was recently re -dug and
maintained. You called the wetland area where an obvious spring enters the ditch system to be
jurisdictional wetland. You determined that the wetland at the Hopkins Homestead was a
jurisdictional wetland. Lastly, you determined that the wetland area at the bottom of the irrigation
ditch be considered jurisdictional because it appears that a natural seep is partially maintaining the
Ms. Sue Nall
August 30, 1999
Page 4
cattail wetland which spreads below. We did not observe the unnamed creek between the two
agricultural fields, but WWE finds that the 6 foot riparian wetland should be considered
jurisdictional where the creek appears to follow its natural course unimpeded (Figure 2).
The wetlands in this area are considered jurisdictional because they are sustained by natural seeps
and springs in their location. All other wetlands are sustained through irrigation water that has been
ditched through the agricultural fields. The vegetation communities in this area range from
irrigated agricultural fields and upland fields to wetland marshes and swales. Dominant wetland
vegetation includes reed canarygrass (Phalaris arundinacae), rostrate sedge (Carex utriculata), and
Baltic rush (Juncus balticus) (Appendix). Wetlands in this area are generally saturated in the upper
12 inches of soil. Soil pits dug outside the wetland area were not saturated in the upper 16 inches.
Soils in the wetlands are dark silty loams. These soils generally range from 10YR 5/1 to 10YR 2/1
in color. Wetland soils pits showed signs of mottling and gleying. Outside of the wetland soils
were lighter in color ranging from 10YR 5/2 to 5YR 3/2. Soils were a distinguishing feature for
this wetland delineation, as heavy thistle growth and ditching evidenced the disturbance in the area.
SUMMARY
On behalf of Chenoa, WWE requests a written verification of the wetland delineation performed.
We appreciate your time spent visiting the site and working with us to formally delineate the
wetlands.
Please do not hesitate to call us at (303) 480-1700 should you have any questions or require
additional information.
Sincerely,
WRIGHT WATER ENGINEERS, INC.
By
cc: William Lorah, w/encls.
Bill Peacher, w/o encls.
Cam Kicklighter, w/o encls.
Encls. Map (Figure 2)
43 Wetland Data Sheets
C:\931-004\020ard\PERMIT.DOC
lair Le'
Wetlcientist and Regulatory Specialist
mV00-00040,-(004120101AnDm
WRIGHT WATER
ENGINEERS, INC.
2490 W. 26Th AVE. 100A
DENVER, CO 80211
(303)480-1700
DESIGN RJU
DETAIL RJU
CHECK BL
DATE 8/20/99
SCALE 1.02 miles
FIGURE 1
VICINITY MAP
ASPEN VALLEY RANCH
D:V VK\931 —4\O2V &\TB.DMG
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an
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•
•
Non jurisdictional Wetland
Jurisdictional Wetland
WRIGHT WATER
ENGINEERS, INC.
2490 W. 26TH AVE. 100A
DENVER, CO 80211
(303)480-1700
DESIGN RJU
DETAIL RJU
CHECK BL
DATE 8/20/99
SCALE 1'=600'
FIGURE 3
JURISDICTIONAL VVETLANDS
UPPER AGRICULTURAL FIELDS
WRIGHT WATER
ENGINEERS, INC.
2490 W. 26TH AVE 100A
DENVER, CO 80211
(303)480-1700
DESIGN RJU
DETAIL RJU
CHECK 9L
DATE 8/20/99
SCALE r=600'
FIGURE 4
JURISDICTIONAL WETLAND
LOWER VALLEY FLOOR
MEMORANDUM
To: Sue Nall
U.S. Army Corps of Engineers
From: Blair Leisure
Wright Water Engineers, Inc.
Date: November 14, 2000
Re: Spring Valley Ranch File #199875502
Road Construction Along the Lower Reach of Landis Creek
HICs
National x
Ethics
Award
1999
Wright Water Engineers, Inc. (WWE) has reviewed the preliminary plan base map for Spring
Valley Ranch's Planned Urban Development (PUD) dated September 22, 2000. WWE completed
a wetland delineation for this property in 1998 and 1999, and you approved it in 1999.
According to the September 22, 2000 plan, design of the proposed project has avoided impact to
jurisdictional wetlands. In four places where proposed golf cart paths cross wetlands, these paths
will span wetlands to avoid any impact. In addition, best management practices (BMPs) will be
installed around all wetlands where construction may occur. These BMPs will be maintained
throughout the construction period.
The historic flows along Landis Creek were diverted for farming and agricultural purposes, so
that Landis Creek in the lower reaches of the Spring Valley Ranch has no appreciable flow. The
drainage below Shaky Lake has neither an active channel nor discernible wetlands. Therefore,
the U.S. Army Corps of Engineers (USACE) would not take jurisdiction over the drainage of
Landis Creek below Shaky Lake on the Spring Valley Ranch's property. You verified this in a
telephone conversation with me on November 3, 2000. The proposed PUD involves reworking
the existing dirt road along this lower reach of Landis Creek into a paved road that will access
lots higher on the ranch's property. Improvements to this road will include designing drainage
conveyance adjacent to the road to handle 100 -year storm events. However, the majority of
water in Landis Creek will be diverted for irrigation purposes on the upper reaches of the
property. Therefore, no water will flow in the historic channel of Landis Creek unless there is
some unusual storm event.
You explained in our telephone conversation that the USACE would not take jurisdiction over
this lower reach of Landis Creek because it has neither an active channel nor any discernible
wetlands. Construction of a drainage associated with the improved road should be designed to
handle the 100 -year storm event in case of overflow back into the historic drainage. In addition,
you recommended that I document our conversation by writing this memorandum for the file.
cc: Bill Preacher, Spring Valley Development, Inc. /
Bill Lorah, WWE (Glenwood Springs)
C:\931004\0101 a\M-N aII.BL. doc
Wright Water Engineers, Inc., 2490 W. 261h Avenue, Ste. 100A, Denver, CO 80211
Tel. 303/480-1700; Fax. 303/480-1020, e-mail:krwright@wrightwater.com
BASE MAP
SPRING VALLEY RANCH P.U.D.
600
CIVIL ENGINEERING:
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co P1 S V 1 -TING ENGINEERS a LA N O SURVEYORS
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DATE: JUNE 1, 2006
600
1200
GRAPHIC SCALE IN FEET
1 INCH 600 FEET
CONTOUR INTERVAL =1O FEET
1800
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LEGEND
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