HomeMy WebLinkAbout992454.tiff June 14, 1999
Soils
W.S.W., Inc. Rezoning
Olney Fine Sandy Loam, 0 to 1 Percent Slopes.
This is a deep well drained soil on smooth plains at elevations of 4,600 to 5,200 feet. It
formed in mixed outwash deposits. Included in mapping are small areas of soils that have
a dark surface layer and some small leveled areas.
Typically the surface layer of this Olney Soil is grayish brown sandy loam about 10 inches
thick. The subsoil is yellowish brown and very pale brown sandy clay lam about 15 inches
thick. The substratum to a depth of 60 inches is very pale brown, calcareous fine sandy
loam.
Permeability and available water capacity are moderate. The effective rooting depth is 60
inches or more. Surface runoff is slow and the erosion hazard is low.
This soil is used almost entirely for irrigated crops. It is suited to all crops commonly
grown in the area, including corn, sugar beets, beans, alfalfa, small grain, potatoes, and
onions. An example of a suitable cropping system is three or four years of alfalfa
followed by corn, corn for silage, sugar beets, small grain, or beans. Few conservation
practices are needed to maintain top yields.
All methods of irrigation are suitable, but furrow irrigation is the most common.
Barnyard manure and commercial fertilizer are needed for top yields.
Windbreaks and environmental plantings are generally suited to this soil. Soil blowing, the
principal hazard in establishing trees and shrubs, can be controlled by cultivating only in
the tree row and by leaving a strip of vegetation between the rows. Supplemental
irrigation may be needed at the time of planting and during dry periods. Trees that are
best suited and have good survival are Rocky Mountain Juniper, Eastern Redcedar
Ponderosa Pine, Siberian Elm, Russian Olive, and Hackberry. The shrubs best suited are
Skunkbush Sumac, Lilac, and Siberian Peashrub.
Wildlife is an important secondary use of this soil. The cropland areas provide favorable
habitat for Ring-necked Pheasant and Mouring Dove. Many nongame species can be
attracted by establishing areas for nesting and escape cover. For pheasants, undisturbed
nesting cover is essential and should be included in plans for habitat development,
especially in areas of intensive agriculture.
Rapid expansion of Greeley and surrounding area has resulted in urbanization of much of
this Olney Soil. This soil has good potential for urban and recreational development. The
only limiting feature is the moderately rapid permeability of the substratum, which causes
a hazard of ground water contamination from sewage lagoons. Lawns, shrubs and trees
grow well.
Capability class I irrigated.
992454
12 SOIL SURVEY
TABLE 12.--ENGINEERING PROPERTIES AND CLASSIFICATIONS--Continued
1
Classification IFrag- Percentage passing
Soil name and :Depth: USDA texture Iments sieve number-- Liquid Piss-
,I AASHTO > 3 : 1 : limit ticity
map symbol I inches 4 10 1 40 1 200 indmi
Pct
Pct I
In ' 1
36•: I ,CL-ML ,A-4 0-5 75-100 75-100170-95 155-75 25-35 5-10
Shingle , 0-6 Loam 0 75-100 75-100165-100150-80 , 30-40 10-20
1 6-18 Clay loam, loam 1CL A-6 I I --- --1 18 Unweathered 1 '
bedrock. , $ I --- NP
37, 38 1 0-9 Fine sandy loam IML, SM A-4 0-5 '75-100 75-100:70-90 :45-60 I ---
Nelson 19-30 Fine sandy loam, :SM, ML A-4, A-2 0 175-100 75-100160-85 :30-55 i , NP
'
sandy loam. I , , --- --- : ---
30 Weathered 1 --- --- --- ' --- --- ---
bedrock. I I I I
0-9 Loam ICL, SC A-6 0-5 95-100180-95 170-95 :45-75 125-40 10-20
39, 40 9-29 Clay loam, clay 1CL, CH A-6, A-7 0-5 95-100190-100185-95 165-75 135-60 20-35
Nunn 29-60 Clay loam, loam, :CL, A-4, 0-5 80-100180-100:60-90 :25-75 15-40 - 5-20
sandy loam. : CL-ML, A-6,
1 SM-SC, A-2 I
' SC 1 I
I
0-9 Clay loam 1CL, SC A-6 0-5 95-100180-95 170-95 145-75 25-40 10-20
YN , 42 CH A-6, A-7 0-5 95-100190-100185-95 165-75 , 35-60 20-35
Nunn 9-29 Clay loam, clay A_y 0-5 80-100180-100160-90 125-75 15-40 5-20
29-60 Clay loam, loam,I CL-ML, A-6, I I I
sandy loam. 1 1
I SM-SC, A-2 , I 1
SC ' i
' NP
0-9 Loamy sand ISM A-2 0-5 95-100180-95 160-80 :20-30 ---
43A-7 0-5 95-100190-100185-95 165-75 35-60 20-35
Nunn 9-30 Clay loam, clay ICL, CH A-6,A 0-5 80-100180-100:60-90 125-75 15-40 5-20
30-60 Clay loam, loam, ICL,CL, 1
sandy loam. 1 CL-ML, A-6, ' i I
1 SM-SC, A-2 ' ' I
SC I
I
i I NP
0-10 Loamy sand SM A-2 0 ,95-100190-100160-90 115-25 , ---
4O, 450 :95-100190-100:80-100 40-55 1 20-40 10-20
Olney 10-20 Sandy clay loam SC, CL A-6 A-6 0 195-100195-100175-95 35-55 1 20-35 5-15
20-25 Sandy loam, SC, I
SM-SC, '
sandy clay 1 I
loam, fine CL, I
CL-ML : ' --- , NP
sandy loam. IA-2 0 95-100195-100 70-95 20-35 I
25-60 Fine sandy loam, SM 1
loamy fine :
sand. '
0-10 Fine sandy loam SM A-2 0 95-100 90-100 70-95 120-35 15-25 I NP-5
46, 47, 48 0 95-100 90-100 80-100140-55 , 20-40 1 10-20
Olney 10-20 Sandy clay loam SC, CL A-6
20-25 Sandy loam, SC, A-4, A-6 0 95-100 95-100 75-95 135-55 i 20-35 i 5-15
:
sandy clay SM-SC, I
loam, fine CL, I
sandy loam. CL-ML 0 X95_100195-100170-95 :20-35 1 --- : NP
25-60 Fine sandy loam, SM A-2 I :
loamy fine i
sand• . : NP
, SM A-2 0 100 1 100 165-80 115-30 ------ NP
49 0-22 Sand SM A-2 A-4 0 100 100 160-80 130-40 --- NP
Osgood- 22-34 Loamy loam0 100 195-100150-75 1110-25
34-60 Loamy sand, sand SM A-2 I NP
0-12 Sandy loam SM A-2 0-1 95-100 75-100150-80 :20-35 I --- I NP
50, 51, 52, 53 A-2, A-1 0-1 90-100 50-100140-80 120-35 I
Otero 12-60 Sandy loam, fine SM : 1
sandy loam, I 1 : I
gravelly sandy : 1
I
loam. 1
ML A-4 0 195-100 90-100175-95 155-75 125_35 1 NP-S
54, 55 0-20 Loam 0 180-100 80-100160-85 135-50
Paoli 20-25 Fine sandy loam, SM A-4 1 ' 'sandy --- NP
ines A-2, A-
loam. 4 0 :75-100 75-100155-85 130-50 i
25-60 Fine sandy loam, SM : 1 I I
sandy loam. 1 : I
130 SOIL SURVEY
TABLE 13.--PHYSICAL AND CHEMICAL PROPERTIES OF SOILS--Continued
' —r------;- -T------r-- -----T—Risk of corrosion ; Erosion:Wind
Soil name and Depth: Permea- Available; Soil Salinity Shrink- T factors:erodi-
map symbol 1 bility water ;reaction swell Uncoated Concrete 1—Ib111ty
capacity ; potential steel K : T ;group_
In I In/hr In/in : PH Mmhos/cm r----T---T
1 : 1
29, 30 0-121 2.0-20 0.11-0. 15: 6.6-7.8 <2 Low Moderate Low 0.24 5 : 3
Julesburg 12-271 2.0-20 0.11-0.15 6.6-7.8 <2 Low Moderate Low 0.24 I
27-601 >6.0 0.05-0.13 6.6-7.8 <2 Low Moderate Low 0.20
31, 32, 33, 34 0-121 0.6-2.0 0. 16-0. 18 7.9-8.4 <2 Low ;Moderate Low 0.32 5 I 4L
Kim 12-60: 0.6-2.0 0.15-0.17 7.9-8.4 <2 Low :Moderate Low 0.32
35a: 1 I I I
Loup 1 0-16 6.0-20 0.10-0.14 6.6-8.4 <2 Low High Low 0.171 5 I 2
116-60 6.0-20 0.06-0.08 7.4-8.4 <2 Low High Low ,0.171 1
: 1
Boel 1 0-14 6.0-20 0.10-0.12 6.6-8.4 <2 Low High Low 10.171 5 2
114-60 6.0-20 0.05-0.07 6.6-8.4 <2 Low High Low 10.171
3611:
Midway 1 0-13 0.06-0.2 0.12-0.17 7.9-9.0 2-8 High High Low :0.43: 1 4
:
Shingle 1 0-6 0.6-2.0 0.16-0.18 7.4-9.0 <2 Low High Low 10.32 2 I 4L '
1 6-18 0.6-2.0 0.16-0.21 7.9-9.0 <2 Moderate High Low 10.49 I
1 18 , --- --- --- ___ 1-__ ;
1
37, 38 I 0-9 12.0-6.0 0.13-0.15 7.9-8.4 <2 Low High Low 10.20, 2 1 3
Nelson 19-30: 2.0-6.0 0.11-0.13 7.9-8.4 <2 Low High Low 10.201 1
30 1 --- --- --- --- 1--- 1 1
I I I
'9, 40, 41, 42 0-9 0.2-2.0 0.15-0.20 6.6-7.8 <2 Moderate Moderate Low 10.241 5 I 6
nnn 9-29 0.06-0.6 0.15-0.18 7.4-8.4 <2 High High Low 10.281 1
29-60 0.2-2.0 0. 10-0.18 7.4-8.4 <2 Moderate High Low 10.24: I
: : I
43 0-9 2.0-6.0 0.10-0.14 6.6-7.8 <2 Low Moderate Low 10.151 5 I 3
Nunn 9-29 0.06-0.6 0.15-0.18 7.4-8.4 <2 High High Low 0.281 1
29-60 0.2-2.0 0.10-0.18 7.4-8.4 <2 Moderate High Low 0.24 1
44, 45 0-10 6.0-20 0.06-0.10 6.6-7.8 <2 Low Low Low 0.17 5 : 2
Olney 10-20 0.6-2.0 0.13-0.15 6.6-7.8 <2 Moderate High Low 0.24,
20-25 0.6-6.0 0.11-0.15 7.9-8.4 <2 Low High Low 0.241
25-60 2.0-6.0 0.06-0.13 7.9-8.4 <2 Low High Low 0.20:
46, 47, 48 0-10 0.6-6.0 0.11-0.15 6.6-7.8 <2 Low Moderate Low 0.201 5 : 3
Olney 10-20 0.6-2.0 0.13-0.15 6.6-7.8 <2 Moderate ,High Low 0.24;
20-25 0.6-6.0 0.11-0.15 7.9-8.4 <2 Low :High Low 0.24:
25-60, 2.0-6.0 0.06-0.13 7.9-8.4 : <2 Low High Low ,0.20; I
49 0-22 6.0-20 0.05-0.08 6.6-7.3 I --- Low Low Low ;0.10 5 1 1
Osgood 22-34 2.0-6.0 0.10-0.13 6.6-7.3 1 --- Low Low Low 0.17
34-60 6.0-20 0.06-0.08 6.6-8.4 : <2 Low Moderate Low 0.10
50, 51, 52, 53 0-12 6.0-20 0.09-0.13 7.4-8.4 <2 Low High Low 0.10 5 2
Otero 12-60 6.0-20 0.08-0.12 7.4-8.4 <4 Low High Low 0.10
54, 55 0-20 0.6-2.0 0.16-0.18 6.6-7.3 --- Low Moderate Low :0.20 5 , 5
Paoli 20-25 >6.0 0.14-0.17 7.4-7.8 <2 Low High Low 10.20
25-60 >6.0 0.12-0.14 7.4-8.4 <2 Low High Low :0.20
56, 57 0-9 : 0.2-0.6 0.17-0.21 6.6-7.8 <2 Moderate High Low :0.37 3 : 6
Renohill 9-32:0.06-0.2 0.14-0.16 6.6-8.4 <2 High High Low :0.32
58, 59 0-6 0.6-2.0 0.16-0.18 7.4-9.0 <2 Low High Low ;0.32 2 4L
Shingle 6-18 0.6-2.0 0.16-0.21 7.9-9.0 <2. Moderate High Low ;0.49
18 --- --- ___
6011:
' hingle 0-6 0.6-2.0 0.16-0.18 7.4-9.0 <2 ,Low High Low 0.32 2 4L
6-18 0.6-2.0 0.16-0.21 7.9-9.0 <2 ;Moderate High Low 0.49
18 --- --- ___
WELD COUNTY, COLORADO, SOUTHERN PART 133
TABLE 14.--SOIL AND WATER FEATURES--Continued
I Flooding ; High water table 1 Bedrock 1
Soil name and ;Hydro- ; I 1 I I 1 1 I Potential
map symbol ; logic Frequency ; Duration ;Months ; Depth 1 Kind ;Months ;Depth Hard- frost
;group ; 1 ; ness action
I ; I ; Ft ; I 1 In
a. I 1
hingle ; D None ; --- 1 --- 1 >6.0 ; --- 1 --- 110-20;Rip- Low.
I I I 1 1 gable
, 38 1 B None ___ I --- ; >6.0 --- I ___ 20-40 Rip- Low.
elson I pable
; I
, 40, 41, 42, 1 1 --- >60 --- Moderate.
3 I C None --- --- >6.0 , ---
Nunn
, 45, 46, 47, 1 --- >60 --- Low.
8 B None --- --- >6.0 ---
Olney
A None ___ --- I >6.0 --- --- >60 --- Low.
)sgood
J, 51, 52, 53____ B None ___ --- >6.0 --- --- >60 --- Low.
)tero
1, 55 B None to rare --- --- >6.0 --- --- >60 --- Moderate.
'toll
___ --- >6.0 --- --- 20-40 Rip- Low.
1, C None I pable
ienohill
D None --- >6.0 --- --- 10-20;R Low.
gle pable
la:
Shingle D None ; --- ; --- >6.0 --- --- 10-20 Rip- Low.
pable
Renohill C None ; --- --- >6.0 --- --- 20-40 Rip- Low.
pable
1 D None ' ___ --- >6.0 --- --- 10-20 Rip- Low.
Tassel 1 pable
2, 63 B None I --- i --- >6.0 --- --- 20-40 Rip- Low.
Terry i pable
>6.0 --- 20-40 Rip- Low.
4, C None --- ___ pable
Thedalund
6, 67 C None --- --- >6.0 ---
--- >60 --- Low.
Ulm
-__
Ba A None 1 --- >6.0 ---
--- >60 --- Low.
Usti°
Torriorthents
A None , 1 --- >6.0 I --- --- >60 --- Low.
Valent
1a
Valent A None I --- --- >6.0 --- --- 1 >60 --- Low.
Loup D Rare to 1 Brief Mar-Jun +.5-1.5 Apparent Nov-May 1 >60 --- Moderate.
common.
'2, 73, 74, 75,
76, 77 B None 1 --- ' --- >6.0 --- --- 1 >60 --- Low.
v ona
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