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SKETCH PLAN SUBMITTAL
FOR
EASTBANK COMMERCIAL CENTER
GARFIELD COUNTY, COLORADO
HCE Job No. 90050.002
June 11, 1991
• 923 Cooper Avenue • Glenwood Springs, CO 81601
Telephone: 303-945-8676 • 303-920-3669 • FAX: 303-945-2555
'.June 12,1991
Garfield County Planning
109 8th Street, Suite 300
Glenwood Springs, Co 81601
_4-tn: Andrew McGregor
RE: Eastbank Commercial Center
HCE Job No. 90050.002
Dear Andrew:
JUN t 1041\
Wayne Rudd has informed me that he would like to have the request
for five residential units on Lot 3 deleted. Therefore, there are
no residential units proposed for the site.
Sincerely,
HIGH COUNTRY ENGINEERING, INC.
Tim t thy P. Beck, P.E.
Pri cipal Engineer
TPl3: r jm
923 Cooper Avenue • Glenwood Springs, CO 81601
Telephone: 303-945-8676 • 303-920-3669 - FAX- inn ()4 ,Lt5
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June 11, 1991
Garfield County Planning
109 8th Street, Suite 300
Glenwood Springs, CO 81601
Attn: Mark Bean
41 RE: Sketch Plan Submittal for Eastbank Commercial Center
HCE Job No. 90050.002
Dear Mark:
Please find attached the Sketch Plan submittal information for the
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Eastbank Commercial Center. Supplemental text and information is
included with this letter, and the 24" x 36" drawing is supplied
separately.
The proposed subdivision is located southwesterly of where Old
• Highway 82 and the four -lane Highway 82 come together, near the CMC
turnoff. (Please see the vicinity map on the plan.) The property
is bounded on the northeast by Old Highway 82, and on the other
sides by commercial or commercial and residential uses. The names
and addresses of the adjoining property owners are shown on the
plan.
The parcel is presently zoned Commercial/Limited and no change in
zoning is desired.
The proposed water supply is an existing well. The driller's
report is included with the supplemental information. The supply
41 should be more than adequate for the proposed uses. The proposed
sewage disposal system is an existing individual sewage disposal
system, constructed for the existing and proposed uses.
Soils information from the Soil Conservation Service is provided in
the supplemental information.
• The impact of the proposed subdivision on the river and adjacent
lands should be minimal. Drainage improvements are already in
place in the form of grading and a detention/infiltration basin.
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923 Cooper Avenue • Glenwood Springs, CO 81601
• Telephone: 303-945-8676 • 303-920-3669 • FAX: 303-945-2555
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Mr. Mark Bean
Page 2
June 11, 1991
Utilities at the site are, or will be, provided by:
1. Electricity - Holy Cross Electric Association
2. Natural Gas - Rocky Mountain Natural Gas Co.
3. Telephone - U.S. West Communications
Please review this application and call us with any questions or
comments, or if you need additional information.
Sincerely,
HIGH COUNTRY ENGINEERING, INC.
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Timo by P. Beck, P.E.
Prin ipal Engineer
TPB:rjm
40 Encl.
(15 copies provided)
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PROPERTY DESCRIPTION
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EXHIBIT 'A'
SCHEDULE A
PROPERTY DESCRIPTION
/ORDER NO: 90017603 C2
A parcel of land situated in Government Lots 9 and 18, Section
1, Township 7 South, Range 89 West of the 6th P.M., County of
Garfield, State of Colorado, being more particularly described
as follows:
• NOTE: For the p'irpose of this description all bearings
-ontained herein shall be relative to a bearing of N. 0 degrees
15 00" E. on the East line cf Lot 36 of said Section 1.
C lrn acing at the corner common to Government Lots 8, 9, 18, and
36 o. said Section 1, which is monumented by a brass cap
• witn:::�s corner N. 1 degree 14'00" E. 10.00 feet, in place and
markt-rd LS 10732;
thc.r,c:e along the East line of said Lot: 18, S. 1 degree 14'00" W.
252.06 feet to the TRUE PQINT f\ir BEGINNING;
thence continuing along the fHle, or 18, S. 1 degree
14'00" W. 59.98 feet;
. thenc N. 87 degrees 47'00" W. 286.12
thence N. 36 degrees .`)'0R" W. 549.3 f<.
thence N. 52 degrees 31'00" E. 7.92.86 feet to trh• .,outhwesterly
right of way line of old Sate Highway 82;
thence along said right of way line, S. 53 degrees 23'00" E. 351.00
„ feet to a point on a no.i-tangent curve, the radius point of
which bears S. 52 degrees 58'26" W. 1760.08 feet;
thence leaving said right of way gine, along the arc of said
curve to the right, 350.69 feet, through a central angJe of
11 degrees 24'57", and a chord hearing of S. 31 degrees 19
E. 350.11 feet to the TRUE POI,. i. OF BEGINNING.
COUNTY OF GARFIELD
STATE OF COLORADO
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•00C (BOOM 10-891
Ft
STI'EWA RT. TITLE
GUARANTY COMVANY
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WELL INFORMATION
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Page - 1
Shelton Drilling Co.
P.O. Box 1070
Basalt, Co. 81621
(303) 927-3893
NAME: Rudd FIRST: Wayne
ADDRESS: 16311 Hwy 82 NEW OWNER:
CITY: Carbondale ST: CO ZIP: 81623 PHONE:
• LOCATION: Jackass Flats DATE COMPLETED: 11-05-90 PERMIT#: 037778-F
LEGAL DESC: Garfield, NE of SE, #1, 7 S, 89 W, 6th
WELL TYPE: Commercial Exempt, 15 GPM, 1 AF DISTANCE: 2450' S, 1010 E
DATE ISSUED: 10-22-90 # OF ACRES: 3.89 RIG TYPE: Cabletool 22
SUBDIVISION:
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CASING RECORD & WELL LOG
(ROTARY) (CABLETOOL)
CASINGS 7": PLAIN1 : 7" steel 0-77'
..STEEL 5 1/2": PLAIN2
PVC 5": PLAIN3 •
....PERFORATED: PERFORATED1: 7" steel 77-92'
OPEN HOLE: PERFORATED2:
MISC: PERFORATED3:
WELL LOG1: 0-20' Red Dirt
WELL LOG2: 20-58' River Boulders
WELL LOG3: 58-92' Sand, Gravel, & Cobbles
WELL LOQ4:
WELL LOG5:
WELL LOG6:
WELL LOC.?:
WATER LOCATED: 65-92
AQUIFER: Sand, Gravel, & Cobbles
DEPTH: 92 GPM: 15 STATIC LEVEL: 59
TYPE OF TESTER: Bailer LENGTH OF TEST: 1 Hr. AFTER TEST: 59
SOIL CONSERVATION SERVICE
SOILS INFORMATION
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U.S. Department of Agriculture Page 1
41 Soil Conservation Service 05/16/91
SOIL INTERPRETATION REPORT
USE: Pond Reservoir Area
SURVEY AREA - ASPEN -GYPSUM AREA, PARTS OF EAGLE, 8ARFIELD, AND PITKIN
COUNTIES, COLORADO
Map Unit Map Unit
Symbol Component Comp. Rating Restrictive Feature
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13 yJ\� ATENCIO 60 SEVERE Seepage
AZELTINE 30 SEVERE Seepage
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28 =57a. DAHLQUIST 40 SEVERE Seepage
Slope
SOUTHACE 35 SEVERE Seepage
40 Slope
89 MUSSEL 100 MODERATE Seepage
Slope
98 1513 SOUTHACE 100 SEVERE Seepage
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Slope
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4111
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U.S. Department of Agriculture Page 1
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~~ So i | Conservation Service 05/16/91
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SOIL INTERPRETATION REPORT
USE: Drainage
SURVEY AREA - ASPEN -GYPSUM AREA, PARTS OF EAGLE, 8ARFIELD, AND PITKIN
COUNTIES, COLORADO
Map Unit Map Unit
Symbol Component Comp. Rating Restrictive Feature
13 ATENCIO 60 LIMITATION Deep To Water
AtELTINE 30 LIMITATION Deep To Water
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28 DAHLQUIST 40 LIMITATION Deep To Water
SOUTHACE 35 LIMITATION Deep To Water
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89 MUSSEL 100 LIMITATION Deep To Water
98 SOUTHACE 100 LIMITATION Deep To Water
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U.S. Department of Agriculture
Soil Conservation Service
Page 1
05/16/91
SOIL INTERPRETATION REPORT
USE: Septic Tank Absorption Fields
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SURVEY AREA - ASPEN -GYPSUM AREA, PARTS OF EAGLE, GARFIELD, AND PITKIN
COUNTIES, COLORADO
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Map Unit Map Unit
Symbol Component
Comp. Rating
Restrictive Feature
13 ATENCIO 60 SEVERE Poor Filter
AZELTINE 30 SEVERE Poor Filter
28 DAHLQUIST 40 SEVERE Poor Filter
Slope
Large Stones
SOUTHACE 35 SEVERE Poor Filter
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~~ Slope
Large Stones
89 MUSSEL 100 MODERATE Percs Slowly
98 SOUTHACE 100 SEVERE Slope
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TABLE M. --BUILDING S1TC DEVELnt•MENT--Continued
1 1 t I 1
Soil name and ! Shallow 1 Dwellings Dwellings Small 1 Local roads 1 Lawns and
map symbol I e>rcavatlons I without I with I commercial I and streets 1 landscaping
I basements basements I buildings 1
1 I I 1
I 1 I I
12.: I 1 I I 1 1
Rock outcrop. I I 1 1 1 1
I I 1 I I 1
13`: 1 1 I 1 1
Atenclo !Severe: (Moderate: !Slight IModerate! :Moderate: !Moderate:
I cutbanl:s cave.) shrink -swell. I I shrink -swell, I shr•Inl:-awe! 1. 1 droughty.
1 I I I slope. I I
I t I I 1
Azel tine (Severe: ISlight :Slight Moderate: !Slight !Moderate:
I cutbanks cave.! ! slope. 1 1 small stones,
I I I I droughty.
I { 1 I 1 1
14e: 1 I I 1 I
Callings !Severe: !Severe: :Severe: :Severe: !Severe: !Severe:
: slope. ! slope. I slope. I slope. t slope. I slope.
1 1 1 1
Vel,Jack :Severe: !Severe: :Severe: :Severe: !Severe: • !Severe:
I slope. I slope. , slope. I slope. I low strength, slope.
I Ii 1 I slope. 1
! I I I
15s, 14s, 1 I I i
CI,arcol :Severe: :Sever -e: :Severe: !Severe: :Severe: !Severe:
I slope. I slope. : slope. I slope. 1 slope. large stones,
I 1 1 1 1 slope.
I 1 1 I ! I
Mord !Severe, !Severe: (Severe: :Severer !Severe: (Slight.
I slope. : shrink -swell, I slope, I shrink -swell, 1 low strength, I
1 1 slope. I shrink -swell. : slope. 1 slope, 1
1 I I I shrink -swell. I
I I• I I I
17s, I I
Cochetopa !Moderate: !Severe: :Severe: !Severe: !Severe: !Moderate:
too clayey, 1 shrink -swell. 1 shrink -swell. I shrink -swell, I low strength, , slope.
slope. I slope. 1 shrink: -swell. I
I 1' I I I
Art,-obus !Severe: !Severe: :Severe: !Severe: !Severe: !Severe:
I large stones. , large stones. I large stones. I slope, targe stones. 1 large stones.
large stones. I 1
1", 19.:
I 1
Cochetopa :Severe: :Severe: !Severe: !Severe: :Severe: :Severe:
: slope. I shrink -swell, I slope, I shrink -swell, low strength, , slope.
! slope. 1 shrink -swell. I slope. 1 slope,
I 1 shrink -swell. .
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Antrnbus :Severe:!Severe: :Severe: (Severe: :Severe: !Severe:
1 large stones, slope, I slope, slope, slope, large stones,
I slope. I large stones. I large stones. I large stones. I Iar3e stones. • slope.
20 :Severe: 'Severe: :Severe: :Severe: :Severe: !Severe:
Coulterg slope. , sl .e. sl .e.
of of slope. slope. 1 slope.
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(Aire' :Severe: :Moderate: :Moderate: oval rr: :Model ate: :Severn;
1 cutbanks cave.: slope, slope, slop,
1 , !arae stones. , iar slope, large stones.
�ge St�.rre � fl'n5 t. aCCI!�r,, ,
. targe stones. .
Fugt,es:Moderate: !Severe: Severe: :Severe: !Severe: !Moderate:
too clayey, , shrinl:-swell. shrink -swell. I shrink --swell, 1 stn int -swell, , targe stones,
slope. : slc.pe. low strength. slope.
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r AF•1 r M.--11111 DIN(i RI II !WIRE' rtfleFNI tinue.1
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Soli name and 1 Shallow I Dwellings 1 Dwellings Small 1 Local roads 1 Lawns and
reap symbol 1 excavations 1 without with 1 r-nmmer-cIal I and streets 1 landscaping
1 1 basements 1 basements I bul :dings I 1
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1 I t I I
224: 1 I I I I 1
C.urecantl :Severe: !Severe: (Severe: !Severe: :Severe: !Severe:
1 cutbanks cave,: slope. : slope. 1 slope. I slope. 1 large stones,
: slope. t I 1 1 slope.
t I 1 1 I
Fughes !Severe: :Sever -e: (Severe: :Severe: :Severe: ISeveret
I slope. I shrink -swell, I slope, 1 stir l 1,1-sve l I, 1 shrink -swell, 1 slope.
1 slope. 1 shrink -swell. . slope. I low strength, 1
I I I slope.
f I I I
23, 24 :Severe: :Severe: :Severe: :Severe: :Severe: :Severe:
Cushool : slope. I slope. : slope. I slope.: slope. I slope.
I I I 1
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Cushool :Severe: :Severe: !Severe: :Severe: :Severe' :Severe:
slope. I slope. 1 slope. I slope. I slope. slope.
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kentsac :Severe: :Severe: :Severe:!Severe: :Severe: :Severe:
1 depth to rock,: slope, I depth to rock,: slope, 1 depth to rocl:,1 slope,
slope. depth to rock.: slope. depth to roc::.t slope. I depth to rock.
1 1 1
2615, '
Dahlqulst !Severe: :Severe: :Severe: :Severe: :Sever -e: :Severe:
1 cutbanks cave,: large stones. . large stones. I slope, 1 large stones. 1 droughty.
1 large stones. 1 1 large stones. 1 I
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Southace :Severe: :Severe: :Severe: !Severe: !Severe: :Severe:
: cutbanks cave,: large stores. : large stones. I slope, 1 large stones. 1 Targe stones,
large stones. 1 , large stones. 1 1 droughty.
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/ 27s, 234: : I
5,(16Dahlquist :Severe: :Severe: :Severe:ISeveres
:Severe:ISeveret
1 cutbanks cave-,! slope, slope, : slope, 1 droughty,
. 1 -large stones, 1 large stones. large stones. large stones. I large stones. I slope.
slope. I• 1t .
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Southace :Severe: :Severe:!Sever•es :Severe: :Severe:_ :Severe:: cutbanks cave,: slope, 1 slope, I slope, 1 slope, large stones,
large stones, 1 large stones. , large stones. I large stones. , large stones. 1 droughty,
I slope. 1 slope.
2°15, 30e: I
Dollard !Severe: (Severe: :Severe: :Severe: 'Severe: :Severe:
1 slope. 1 shrink -swell, : slope, : shrink -swell, I low strength, , slope.
I slope. , shrink -swell. : slope. : slope, I
I 1 1 1 shrink -swell. I. 1
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Rock outcrop. ,
31 :Severe: !Severe: :Severe: :Severe: !Severe: :Severe:
Dntsero I slope. .1 slope. I slope. 1 sl..r.e.slope. 1 slope.
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!SI Ight ---:fil i•aht :M.dnrate: :Mode: are:
slope. frost actio,.. 1 droughty.
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Earsman :Severe: :Severe: :Severe: :Severe: :Severe: :Severe:
depth to rock,: slope, : depth to rock,: slope, 1 depth tr. rocP,: droughty,
slope. : depth to rock.: slope. . depth to rock:.: slope. 1 slope.
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Rock outcrop.
See footnote at end of table.
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TABLE M.--PLI1LDING SITE ,UEVEL Of'MENT--C nntrnued
1 1 1
Sall name and 1 Shallow 1 Dwellings Dwellings I Small Local roads I Lawns and
map symbol 1 e::c avations I without with commercial 1 and streets 1 landscaping
I basements basements buildings 1 1
97.4
Trldcll
RRa:
Mo yen sen
1 I I 1 I 1
I I • 1 I 1
I I I 1 I 1
!Severe: :Severe: !Severer !Severer !Severer :Severer
I cutbanks cave,: slope. 1 slope. I slope. 1 slope. I slope.
1 slope. I 1
I 1 1 1 1
I 1 I 1 I
:Severe: !Severe: :Severer !Severer !Severer 15ever•e:
1 depth to rock,: shrink -swell, : depth to rock,: shrink -swell, 1 low strength, I slope,
slope. • slope. i slope, 1 slope. • slope, I thin layer.
1 : shrink -swell. I shrink -swell. t
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Rock outcrop. 1 I I
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ti,9 !Severer (Slight :Slight :Slight :Moderate: :Slight.
Mussel 1 cutbanks cave.:1 frost action.
1 1 1
90 :Severe: :Moderate: !Moderate: !Severe: !Moderate! :Moderate:
Mussel 1 cutbanks cave.: slope. : slope.slope. : slope, 1 slope.
I I 1 I frost action. 1
I 1
91 :Severe: :Severe: :Severe: :Severe: :Severe: :Severe:
Mussel I cutbanks cave,: slope. slope. 1 slope. I slope. 1 slope.
slope. t 1 1
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.2 :Severe: :Severe: :Severe: :Severe: !Moderate: :Moderate:
Redrob : cutbanks cave,: flooding. 1 flooding, I flooding. : wetness, 1 wetness.
1 wetness. 1 wetness. 1 flooding. 1
1 I 1
93 :Severe: :Severe: :Severe: ISever-e: !Severe: :Severe,
Rogert 1 depth to rock,: slope, 1 depth to rock,! slope, I depth to rock,: small stones,
1slope. t depth to r-ri[h.: slope. 1 depth to rock.: slope. I slope.
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04e: I
Showalter ':Moderate: :Moderate: :Moderate: !Severe: :Moderate: :Severe:
1 too clayey, 1 shrink -swell, I slope, ' slope. slope,. large stones.
I Targe stones, 1 slope, 1 large stones. 1 : frost action,
1 slope. 1 large stones. 1 / 1 : shrink: -swell.
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Morval :Moder-ate: :Moderate: :Moderate: :Severe: !Moderate: ;Moderate:
I slope. 1 shrink -swell, I slope, ! slope. 1 low strength, • slope.
t slope. : shrink: -swell. t : slope, 1
1 : 1 frost action. 1
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55e: I I :
Showalter- :Severe: :Severe: :Severe: :Severe: :Severe: :Severe:
1 slope.1 ! slope. slope. slope. • large stones,
t slope.
Morval
!Severer :Sever -e: :Severe: :Severe: :Severe: 1Sever•e:
I slope. slope. slope. 1 slope. I slope.! sl•�pe.
1 1 7
96 :Moderate: :Moderate: :Moderate: 'Moderate: 'M•^r^•—'� :Severn.:
Southace
Southace
:Moderate:
large stones,
slope.
!Severe:
slope.
See footnote at end of table.
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;Moderate: :Moderate: Severe: :Moderate:every:
slop I .lope, s1 ,1 e. slope, • droughty.
large stones. 1 large stones. 1 large stones.
Severe, :SevererSevere: :Severe: :Severot
I slope. I slope. • slope. ! slope. I droughty,
, I slope.
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6/85
98—Southace cobbly sandy loam, 12 to 25 percent elopes. This map
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unit is on upland be-nche-e,- ae.t slopes, the sides of mountains and valleys,
and alluvial fans. Elevation is 6,000 to 7,000 feet. The average annual
precipitation is, 1 to 16 inches, the average annual air temperature is 42
to 46 degrees F, and the average frost -free period is 95 to 105 days. -The_
Included in this unit are small areas of Tridell soils on benchtops and
the upper part of slopes. Included areas make up about 10 percent of the
total acreage.
The Southace soil is deep and well drained. It formed in alluvium and
colluvium derived dominantly from redbed sandstone and shale intermixed with
gypsiferous material. Typically, the surface layer is light reddish brown
cobbly sandy loam 3 inches thick. The upper 11 inches of the underlying
material is gravelly loam. The next 12 inches is very gravelly loam. The
next 34 inches to a depth of 60 inches or more is very cobbly fine sandy
loam.
Is ca ca
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The amount of stones
and cobbles increases with depth. Some flagstones are in the profile in
places.
Permeability of the Southace soil is moderate. Available water
• capacity is low. Effective rooting depth is 60 inches or more. Runoff is
medium, and the hazard of water erosion is high.
This unit is used for rangeland .nd wildlife habitat.
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The potential plant community on this unit is mainly western
wheatgrass, Indian ricegrass, muttongrass, Wyoming big sagebrush, and Utah
r serviceberry. Needleandthread, Douglas rabbitbrush, squawapple, and
scattered Utah juniper commonly are also present in the potential plant
community. The average annual production of air—dry vegetation is about 900
41 pounds per acre. If the range condition deteriorates, Wyoming big
sagebrush, Douglas rabbitbrush, cheatgrass, and annual weeds increase.
Management practices suitable for use on this unit are proper grazing
41 use and a planned grazing system. The suitability of this unit for
rangeland seeding is low. The main limitations for seeding are steepness of
slope and stones on the surface.
41 If the Southace soil is used for homesite development, the main
limitations are steepness of slope, the hazard of erosion, stone in the
soil, and the susceptibility to piping and frost heaving. Areas in this
40 unit adjacent to hillsides are occasionally effected by runoff, which may
also be accompanied by movement of rock debris. ?reserving the existing
plant cover during construction helps to control erosion. Erosion is a
40 hazard in the steeper areas. Only the part of the site that is used for
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construction should be disturbed. Removal of gravel and cobbles in
disturbed areas is needed for best results when landscaping, particularly in
areas used for lawns.
This map unit is in capability subclass VIe, nonirrigated. It is in
Loamy Slopes range site.
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4/86
28--Dahlquist-Southace complex, 25 to 50 percent slopes. This map
unit is on alluvial fans, terraces, and terrace side slopes. Elevation is
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6,200 to 7,400 feet. The average annual precipitation is J. to 16 inches,
the average annual air temperature is 42 to 46 degrees F, and the average
frost -free period is 105 to 115 days.
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and Lords,
This unit is 40 percent Dahlquist and 35 percent Southace. The
components of this unit are so intricately intermingled that it was not
practical to map them separately at the scale used.
Included in this unit are small areas of Yamo soils and Gypsiorthid.
Also included are small areas of sandstone Rock outcrop. Included areas
make up about 25 percent of the total acreage.
The Dahlquist soil is deep and well drained. It formed in alluvium
derived from mixed mineralogy sources. Typically, the surface layer is
brawn cobbly sandy loam 6 inches thick. The upper 7 inches of the subsoil
is very cobbly sandy clay loam. The lower 10 inches of the subsoil is very
cobbly sandy clay loam. --'�_
The substratum to a depth of 60 inches is calcareous extremely
cobbly sandy loam. The soil is noncalcareous to a depth of 24 inches and
calcareous below that depth.
Permeability of the Dahlquist soil is moderate. Available water
capacity is lag. Effective rooting depth is 60 inches or more. Runoff is
medium, and the hazard of water erosion is moderate.
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The Southace soil is deep and well drained. It formed in alluvium.
Typically, the surface layer is brown very stony sandy loam abut 3 inches
thick. The upper 7 inches of the underlying material is very stony sandy
loam. The next 12 inches is extremely stony sandy loam. The lower part to
a depth of 60 inches is extremely stony loamy coarse sand. The soil is
calcareous throughout the profile.
Permeability of the Southace soil is moderately rapid. Available water
capacity is low. Effective rooting depth is 60 inches or more. Runoff is
medium, and the hazard of water erosion is moderate to high.
This unit is used mainly for rangeland. It is also used for wildlife
habitat.
Both of these soils are excellent sources of sand, gravel, and crushed
rock and are utilized as such in quarry operationg.
The potential plant community on the Dahlquist soil is mainly western
wheatgrass, bluebunch wheatgrass, prairie junegrass, true mountainmahogany,
and big sagebrush. Other less numerous plants that characterize this site
are antelope bitterbrush, Utah serviceberry, Indian ricegrass, and Douglas
rattitbrush. The average annual production of air-dry vegetation is about
900 pounds per acre. If the range condition deteriorates, big sagebrush,
Douglas rattitbrush, and cheatgrass increase.
The potential plant community on the Southace soil is mainly bluebunch
wheatgrass, western wheatgrass, Indian ricegrass, big sagebrush, and Utah
serviceberry. Other less numerous plants that characterize this site are
bottlebrush squirreltail, fringed sagebrush, scattered pinyon pine, and Utah
juniper. The average annual production of air-dry vegetation is about 600
pounds per acre. If the range condition deteriorates, big sagebrush,
fringed sagebrush, cheatgrass, and brown snakeweed increase.
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The suitability of this unit for rangeland seeding is poor. Mechanical
treatment is not practical, because the surface is stony and the slopes are
• steep. Slope limits access by livestock and results in overgrazing of the
less sloping areas. Management practices suitable for use on this unit are
proper range use, deferred grazing, rotation grazing, and aerial spraying
• for brush management. This unit is limited for livestock watering ponds and
other water impoundments because of the seepage potential.
This map unit is poorly suited to homesite development. The main
• limitations are steep slopes.
This map unit is in capability subclass VIIe, nonirrigated. The
Dahlquist soil is in Loamy Slopes range site and the Southace soil is in
• Stony Foothills range site.
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13--Atencio—Azeltine complex, 3 to 6 per -cent slopes. This map unit
is on alluvial f„a_ns and terraces. The native vegetation is mainly grasses
• and shrubs. Elevation is 5,900 to 6,500 feet. The average annual
precipitation is 15 to 18 inches, the average annual air temperature is 44
to 46 degrees F, and the average frost—free period is 105 to 120 days.
• This unit is 60 percent Atencio sandy loam and 30 percent Azeltine
gravelly sandy loam. The components of this unit are so intricately
intermingled that it was not practical to map them separately at the scale
• used.
Included in this unit are small areas of soils that are similar to the
Atencio and Azeltine but have finer texture. Also included are small areas
• of gravel bars. Included areas make up about 10 percent of the total
acreage.
The Atencio soil is deep and well drained. It formed in alluvium
• derived dominantly from sandstone and shale. Typically, the surface layer
is reddish gray sandy loam 6 inches thick. The next layer is sandy loam 4
inches thick. The subsoil is sandy clay loam 10 inches thick over gravelly
41 sandy loam 4 inches thick. The upper 6 inches of the substratum is gravelly
sandy loam. The lower part to a depth of 60 inches is very gravelly sand.
The soil is noncalcareous to a depth of 20 inches and calcareous below that
41 depth. In some areas the surface layer is gravelly or cobbly.
Permeability of the Atencio soil is moderate to a depth of 30 inches
and rapid below this depth. Available water capacity is low. Effective
40 rooting depth is 60 inches or more. Runoff is slow, and the hazard of water
erosion is slight.
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The Azeltine soil is deep and well drained. It formed in alluvium
derived dominantly from sandstone and shale. Typically, the surface layer
• is reddish gray gravelly sandy loam 9 inches thick. The upper 7 inches of
the underlying material is gravelly loam. The lower part to a depth of 60
inches is extremely gravelly sand. The soil is calcareous throughout the
• profile. In some areas the surface layer is cobbly loam or sandy loam.
CAO
PeL�ueability of the Azeltine soil is rapid below A depth of 16 inches.
Available water capacity is low. Effective rooting depth is 60 inches or
• more. Runoff is slow, and the hazard of water erosion is slight.
This unit is used mainly for irrigated hay and pasture. It is also
used for cropland, urban development, wildlife habitat, and rangeland.
• If this unit is used for hay and pasture, the main limitations are low
available water capacity and small stones. Grasses and legumes grow well if
adequate fertilizer is used. Using management that maintains optimum vigor
• and quality of forage plants is a good practice. Because these soils are
droughty, applications of irrigation water should be light and frequent.
Irrigation water can be applied by the corrugation, sprinkler, and flooding
• methods. If properly managed, this unit can produce.4 tons of irrigated
grass hay per acre..
This unit is moderately well suited to irrigated crops. If furrow or
• corrugation irrigation systems are used, runs should be on the contour or
across the slope. If properly managed, this unit can produce 70 bushels of
barley per acre.
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The potential plant community on this unit is mainly western
wheatgrass, Indian ricegrass, needleandthread, big sagebrush, and Douglas
rabbitbrush. Nevada bluegrass, prairie junegrass, and bottlebrush
II squirreltail are also present in the potential plant community. The average
annual production of air—dry vegetation is about 800 pounds per acre.
Management practices suitable for use on this unit are proper grazing use
II and a planned grazing system.
If the range vegetation is seriously deteriorated, seeding is needed.
The main limitations for seeding are cobbles and stones. For successful
II seeding, prepare a seedbed and drill the seed. Brush management improves
deteriorated areas of range that are producing more woody shrubs than were
present in the potential plant community.
II If this unit is used for homesite development, the main limitation is
small stones. Population growth has resulted in increased construction of
homes on this unit. Topsoil can be stockpiled and used to reclaim areas
II disturbed during construction. Removal of gravel and cobbles in disturbed
areas is needed for best results when landscaping, particularly in areas
used for lawns. If the density of housing is moderate to high, community
II sewage systems are needed to prevent contamination of water supplies as a
result of seepage from onsite sewage disposal systems.
The map unit is in capability subclass IVe, irrigated, and VIe,
II nonirrigated. It
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is in Rolling Loam range site.
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