HomeMy WebLinkAbout992209.tiff "" SOIL SURVEY (27
years. As range condition deteriorates, a blue grams-buf- Closely spaced contour ditches can be used in irrigating
falograss sod forms. Undesirable weeds and annuals in- close grown crops. Contour furrows should be used for
vade the site as range condition becomes poorer. row crops. Applications of barnyard manure and (-summer-
Management of vegetation on this soil should be based cial fertilizer help to maintain good production. Keeping
on taking half and leaving half of the total anneal produc- tillage to a minimum and utilizing crop residue are impon
Lion. Range pitting can reduce runoff.Seeding is desirable tent.
if the range is in poor condition. Western wheatgrass, The potential native vegetation is dominated by
blue aroma, sideoats grams, buffalograas, pubescent western whestgrass and blue grams. Buffalograss is also
wheatgraes, and crested wheatgrass are suitable for seed_ present. Potential production ranges from 1,000 pounds
ing. The grass selected should meet the seasonal require_ per acre in favorable years to 600 pounds in unfavorable
ments of livestock It can be seeded into a clean, fine Years. As range condition deteriorates, a blue grams-buf-
sorghum stubble, or it can be drilled into a firm prepared falograss sod forma Undesirable weeds and annuals in-
seedbed. Seeding early in spring has proven most success- vade the site as range condition becomes poorer.
ful. Management of vegetation on this soil should be based
Windbreak and environmental plantings are generally on taking half and leaving half of the total annual produc-
not suited to this soiL Onsite investigation is needed to tion. Range pitting can reduce runoff. Seeding is desirable
determine if plantings are feasible Supplemental water is if the range is in poor condition, Western wheatgrass,
needed for successful plantings. blue grams, sideoats grams, buff:dogmas, pubescent
Wildlife is an important secondary use of this soiL The wheatgrass, and crested wheatgrssa are suitable for seed-
cropland areas provide favorable habitat for ring-necked trig- Te grass selected should meet the seasonal require-
ments pheasant and mourning dove. Many elongate species can of livestock It can be seeded into a dean, firm
be attracted by establishing areas for nesting and escape sorghum stubble, r it can he drilled into a firm prepared
cover. For pheasant, undisturbed nesting is essential and seedbed.Seeding e early in spring has proven most success-
should be included in plans for habitat development,espe- success-
ful.
dally in areas of intensive agriculture. Rangeland wildlife, W cited to and environmental plantings are generally
for example, the pronghorn antelope, can be attracted by not suited this soli are fea investigation is needed to
developing livestock watering facilities, managing determine if ccessful feasible. Supplemental water is
livestock grazing,and reseeding where needed. needed for such imp l plantings.
This soil has poor potential for urban uses and only Wildlife is an important secondary use of this soil. The
cropland areas provide favorable habitat for ring-necked
moderate potential for recreational development The
chief limiting features are the underlying shale, the low pheasant and mourning dove. Many nnestin species can
vtrength, and the moderate to high shrink swell. These be attracted by establishing areas for nesting and escape
features present severe problems in dwelling and road cover. For pheasants, undisturbed or cover is develop-
construction -
and in use of tseptic tank absorption fields tial and should be included in plans for habitat Range-
and sewage lagoons. Capability subclass Ills irrigated, lamerit, especially in of intensive igh antelope,agriculture,IVe nonirrigated; Clayey Plains range site, attracted td wildlife, for example,g the v livestock
rin can be
57—Renohill clay loam, 3 to 9 percent slopes: by developing and watering facilities,
pee This' is managing livestock grazing,and reseeding where needed.
a moderately deep, well drained soil on upland hills and This roil has poor potential for urban and recreational
ridges at elevations of 4$50 to 5,200 feet. It formed in development. The chief limiting features are the underly-
residuum from shale. Included in mapping are small areas ing shale, the low stren
of soils that have shale deeper than 40 inches, gtl'• and the moderateto
shrink swell. These features present severe problems high
Ta'Frc+1lY m the surface layer is grayish brown clay leers in
dwelling
about 9 inches thick. The subsoil is and road construction and in use of septic tank
grayish brown and absorption fields and sewage
pale brown clay loam about 12 Inches thick. The sub- nonirrigated;lagoons. Capability subclass
stratum is IVs irrigated, loa , 1to 3r Clayeyes Plains range site.
about 29 inchese clay loam' Shale is at a depth of 58—Shingle loam, 2 to 3 percent slopes This i dial-
about is slow. Available water capacity is low, well drained soil on plains at elevations of 4$50 to
moderate. The effective rooting depth is 20 to 40 inches. 5'� feet.are It someform in residuum om from n _ tlndedin
mapping small areas of shale and sandstone out,
Surface runoff is medium to rapid, and the erosion hazard crops,
is moderate.
This soil is suited to limited cropping. Intensive Typically the surface layer is grayish brown loam about
PP ng. 6 inches thick. The underlying material is light yellowish
cropping is hazardous because of erosion. The cropping brown clay loam. Shale is at a depth of:about 18 inches.
system should be limited to such close grown crops as al- Permeability is moderate. Available water capacity is
falls, wheat, and barley. The soil also is suited to ir- low. The effective rooting depth is 10 to 20 inches. Sun rigated pasture, A suitable cropping system is 3 to 4 face runoff is medium, and the erosion hazard is low.
years of alfalfa followed by 2 years of corn and small This soil is suited only to limited cropping. A suitable
grain and alfalfa seeded with a nurse crop. cropping system is 3 to 4 years of alfalfa and 2 years of
■ EXHIBIT
992209 1 ..5
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50 SOIL SURVEY Zip
sugar beets, small grain, or beans. Few conservation prac- The potential native vegetation is dominated by blue
tices are needed to maintain top yields. grams. Several mid grasses, such as western wheatgrass
All methods of irrigation are suitable, but furrow ir- and needleandthread, are also present. Potential produc-
rigation is the most common. Barnyard manure and corn- tion ranges from 1,600 pounds per acre in favorable years
mercial fertilizer are needed for top yields. to 1,000 pounds in unfavorable years. As range condition
Windbreaks and environmental plantings generally are deteriorates, the mid grasses decrease; blue grams, buf-
well suited to this soil. Summer fallow a year before falograss, snakeweed, yucca, and fringed sage increase;
planting and continued cultivation for weed control are and forage production drops. Undesirable weeds and an-
needed to insure establishment and survival of plantings nuals invade the site as range condition becomes poorer.
Trees that are best suited and have good survival are Management of vegetation on this soil should be based
Rocky Mountain juniper, eastern redcedar, ponderosa on taking half and leaving half of the total annual praduc-
pine, Siberian elm, Russian-olive, and hackberry. The Lion. Seeding is desirable if the range is in poor condition.
shrubs best suited are skwikbush sumac, lilac, Siberian Sideoats grams, little bluestem, western wheatgrass, blue
peashrub, and American plum. grams, pubescent wheatgrass,and crested wheatgrass are
Openland wildlife, such as pheasant, mourning dove, suitable for seeding. The grams selected should meet the
and cottontail, are best suited to this soil. Wildlife habitat seasonal requirements of livestock. It can be seeded into
development, including tree and shrub plantings and a clean, fine sorghum stubble, or it can be drilled into a
grass plantings to serve as nesting areas, should be sue- firm prepared seedbed. Seeding early in spring has
cessful without irrigation in most yeas Under irrigation, proven most successful.
good wildlife habitat can be established, benefiting many Windbreaks and environmental plantings are generally
kinds of openland wildlife. well suited to this soil. Summer fallow a year before
This soil has good potential for urban and recreational planting and continued cultivation for weed control are
development. The chief limiting soil features for urban needed to insure establishment and survival of plantings.
development are the shrink-swell potential of the subsoil Trees that are best suited and have good survival are
as it wets and dries and the limited capacity of the soil to Rocky Mountain juniper, eastern redoedar, ponderosa
support a load. Lawns, shrubs, and trees grow well. Capa- pine, Siberian elm, Russian-olive, and hackberry. The
bility class I irrigated. shrubs best suited are skunkbush sumac, lilac, Siberian
79—Weld loam, 1 to 3 percent slopes. This is a deep, peashrub,and American plum.
well drained soil on smooth plains at elevations of 4,850 to Openland wildlife, such as pheasant, mourning dove,
5,000 feet. It formed in eolian deposits. Included in and cottontail, are best suited to this sail. Wildlife habitat
mapping are small areas of soils that have a subsoil of development, including tree and shrub plantings and
loam and light clay loam. Also included are some leveled grass plantings to serve as nesting areas, should be sue-
treas cesaful without irrigation during moat years. Under ir-
Typically the surface layer of this Weld soil is brown rigation, good wildlife habitat can be established. benefit-
loam about 8 inches thick. The subsoil is brown and pale ing many kinds of openland wildlife.
brown heavy clay loam and light clay about 20 inches This soil has good potential for urban and recreational
thick.The substratum to a depth of 60 inches is silt loam. development. The chief limiting soil features for urban
Permeability is slow. Available water capacity is high. development are the shrink-swell potential of the subsoil
The effective rooting depth is 60 inches or more. Surface as it wets and dries and the limited capacity of the soil to
runoff is slow,and the erosion hazard is low. support a load. Lawns, shrubs, and trees grow well Capa-
In irrigated areas this soil is suited to all crops corn- bility subclass Ile irrigated, IIIc nonirrigated• Loamy
monly grown in the area, including corn, sugar beets (fig. Plains range site.
8), beans, alfalfa, small grain, and onions.An example of a 80—Weld loam, 3 to 5 percent elopes. This is a deep,
suitable cropping system is 3 to 4 years of alfalfa fol- well drained soil on plains at elevations of 4,850 to 5,000
lowed by corn, oorn for adage, sugar beets, small grain, or feet. It formed in eolian deposits. Included in mapping are
beans. Land leveling, ditch lining, and installing pipelines small areas of soils that have a subsoil of loam and light
are needed for proper water applications. clay loam.
All methods of irrigation are suitable, but furrow it Typically the surface layer is brown loam about 8
rigation is the most common. Barnyard manure and coin- inches thick. The subsoil is brown and pale brown heavy
mereial fertilizer are needed for top yields, clay loam and light clay about 18 inches thick. The sub-
This soil is well suited to winter wheat, barley, and stratum to a depth of 60 inches is silt loam.
sorghum if it is summer iallowed in alternate years. Permeability is slow. Available water capacity is high.
Winter wheat is the principal crop. The predicted average The effective rooting depth is 60 inches or more. Surface
yield is 33 bushels per acre. If the crop is winterkilled, runoff is medium,and the erosion hazard is moderate.
spring wheat can be seeded, Generally precipitation is too In irrigated areas this soil is suited to most of the crops
low for beneficial use of fertilizer. commonly grown in the area, such as corn, alfalfa, wheat,
Stubble mulch farming, striperopping, and minimum tie and barley. Sugar beets are often gown. The soil is
lage are needed to control soil blowing and water erosion. suited to irrigated pasture. Ditch lining and installing
Terracing also may be needed to control water erosion. pipelines are needed for proper water application.
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WELD COUNTY, COLORADO, SOUTHERN PART 1O7
TABLE 7,--SAHITAM7 FACILITIES--Continued
,
Soil name and - Septic tank Sewage lagoon ; Trench i Area Dally cover
map symbol absorption areas I sanitary sanitary for landfill
fields i landfill I landfill
7T':
Loup Severe: Severe: Severe: :Severe: Poor:
wetness, wetness, wetness, i wetness, i wetness.
floods. seepage, seepage, I seepage,
floods. floods. : floods. I
72, 73 Slight--'- Severe: Slight :Slight Good.
Vona seepage.
74 Slight--- Severe: Slight Slight :Good.
Vona seepage,
slope. I
i
75, 76, 71 Slight- Severe: Slight Slight :Good.
Vona seepage.
78 Moderate: Moderate: Slight Slight 'Good.
Weld pores slowly. seepage. I
79, 80 Moderate: Moderate: Slight Slight Good.
Weld percs slowly. slope,
seepage.
81':
Wiley-_---- Moderate: Moderate: Slight Slight Fair:
perca slowly. I seepage. too clayey.
Coley Slight ;Moderate: Slight Slight Good.
I seepage.
....e, 83':
ley------ Moderate: ;Moderate: Slight Slight Fair:
peres slowly. I seepage, too clayey.
1 slope.
I
Golly---- Slight :Moderate: Slight Slight Good.
I seepage.
' See map unit descrlptlen for the composition and behavior of the map unit.
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106 SOIL SURVEY
TABLE 7.--SANITARY FACILITIES--Continued
T-_ _
i ; I — i
Soil name and Septic tank Sewage lagoon I Trench Area 1 Daily cover
map symbol absorption ; areas sanitary . sanitary 1 for landfill
!'fields T landfill landfill
—r _
41 Severe: Moderate: Slight Slight ---- Fair:
Nunn peres slowly. excess humus. too clayey.
44, 45, 46, 47, 48-- Slight: Severe: Slight (Slight - Good.
Olney seepage.
49 Slight Severe: Severe: Severe: Fair;
Osgood seepage. seepage, seepage. too sandy.
50, 51, 52 Slight Severe: Slight Slight ---.- Good.
Otero seepage.
,
53 .-- Slight Severe: Slight Slight ----;Good.
Otero slope, ;
seepage. ;
54 Slight Severe: Severe: Severe: ;Good.
Paoli Seepage. seepage. seepage.
55 Slight; Severe: Severe: Severe: Good.
Paoli seepage. seepage. Seepage.
56,. 57 Severe: Severe: Severe: Slight Fair:
Renohill perms slowly, depth to rock. depth to rock. too clayey,
depth to rock. thin layer.
58, 59 Severe: Severe: Severe: Slight - Poor:
Shingle depth to rock. depth to rock. depth tO rock. thin layer.
60•:
Shingle Severe: Severe: Severe: Slight ----,Poor:
depth to rock, depth to rock. depth to rock, i thin layer.
i
Renohill Severe: Severe: Severe: Slight --hair:
peres slowly, depth to rock. depth to rock. ; too Clayey,
depth to rock. ; thin layer.
61 Severn: Severe: Severe: Severe: ;Poor;
Tassel depth to rock, depth to rock, depth to rock, seepage. ; thin layer,
seepage, seepage. ; area reclaim.
slope.
62, 63 Severe: Severe: Severe: Slight ;Pair:
Terry depth to rook. depth to rock, depth to rock. thin layer,
seepage. area reclaim.
64, 65 -- Severe: Severe: Severe: Slight Fair:
Thedalund depth tO rock. depth t0 rock. depth to rock. . thin layer.
66 Severn: Slight Moderate: Slight IPoor:
Ulm perca slowly. too clayey. too clayey.
67 Severe: Moderate: Moderate: Slight Poor:
Ulm pert: slowly, slope, too clayey. too clayey.
681 Moderate: Severe: Severe: Severe: . Poor:
Ustic Torriorthents slope. seepage, seepage, seepage. too sandy,
small stones. too sandy. small stones.
69, 70 -- Slight Severe: Severe: Severe: Poor:
Valens seepage. too sandy, seepage, too sandy,
seepage.
71•:
Yalent Slight Severe: Severe: Severe: Poor:
seepage. too sandy, seepage. too sandy.
seepage.
See footnote at end of table.
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WELD COUNTY, COLORADO, SOUTHERN PART 103
TABLE 6.--BUILDING SITE DEVELOPMENT--Continued
;
•
Soil name and Shallow Dwellings Dwellings Small 1 Local roads
map symbol excavations without with commercial and streets
basements basements buildings
1
66, 67 Moderate: Severe: Severe: Severe: ;Severe:
Ulm too clayey. shrink-swell. shrink-swell. shrink-swell. I low strength,
; shrink-swell.
68• Severe: Moderate: ,Moderate: Moderate: :Moderate:
Usti* small stones, slope. ; slope. Slope. : slope.
Torriorthents eutbanks cave. I 1
: ; I
69 Severe: !slight Slight Slight •--!slight.
Valent eutbanks cave. I ;
; i
70 Severe: !Slight ;Slight Moderate: :Slight.
Valent cutbanks cave. ! slope.
i
71•: i
1
Valent Severe: ;Slight Slight Moderate: Slight.
eutbanks cave. I slope.
1
Loup Severe: !Severe: Severe: Severe: Severe:
wetness, 1 wetness, wetness, wetness, wetness.
cutbanks cave. I floods. floods. floods.
72 Slight Slight Slight Slight Moderate:
Vona low strength.
•
73, 74 Slight Slight Slight Moderate: Moderate:
Vona : Slope. low strength.
75, 76 Slight :Slight slight Slight Moderate:
Vona I , low strength.
. i
77 Slight :Slight Slight Moderate: Moderate;
Vona 1 slope. low strength.
78, 79 Slight ;Moderate: Moderate: Moderate: Moderate:
Weld I low strength, low strength, low strength, low strength,
1 shrink-swell. shrink-swell, shrink-swell. shrink-swell,
frost action.
80 - Slight Moderate: Moderate: ' Moderate: Moderato:
Weld low strength, low strength, , low strength, low strength,
1 shrink-swell. shrink-swell. slope, shrink-swell,
shrink-swell. frost action.
i
81•, 82•: :
Wiley - Slight ;Moderate: Moderate: Moderate: Moderate:
1 low strength, low strength, low strength, low strength,
: shrink-swell. shrink-swell. shrink-swell. shrink-swell.
:
Colby Slight :Slight Slight Slight - Moderate:
; low strength.
83•:
Wiley-- - Slight Moderate: Moderate: Moderate: Moderate:
low strength, low strength, low strength, low strength,
shrink-swell. shrink-swell, slope, shrink-swell.
shrink-swell.
Colby Slight. Slight Slight Moderate: Moderate:
slope. low strength.
• See map unit description for the Composition and behavior or the map unit.
•
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102 SOIL SURVEY
TABLE 6.--BUILDING SITE DEVELOPMENT—Continued
- T
So11 name and ; Shallow Dwellings Dwellings Small Local roads
map symbol ; excavations without with commercial end streets
-T--.---- r
basements basements buildings
44 ;Slight• Slight Slight Slight --- Moderate:
Olney ; low strength.
45 ;Slight- St&ght Slight Moderate: Moderate:
Olney , slope. low strength.
46, 47 (Slight- Slight Slight Slight ---- Moderate:
Olney i low strength.
4$ -- slight•• Slight ,Slight Moderate: Moderate:
Olney slope. low strength.
49 Severe; Slight Slight Slight slight.
Osgood cutbahks cave.
50, 51 Slight- Slight Slight Slight •- Slight.
Otero
52, 53 Slight-. Slight Slight Moderate: Slight.
Otero •
Oslope.
54 Slight Severe: Severe; Severe: Moderato;
Paoli floods, floods. floods. low strength,
frost action.
55 - Slight Slight , Slight Slight •• Moderate;
Paoli - low strength,
frost action.
'56--------------- Moderate: ;Moderate: Moderate: Moderate: Severe:
Renohill depth to rock, ,; low strength, low strength, low strength, low strength,
too clayey. ; shrink-swell. depth to rock, shrink-swell. shrink-swell.
shrink-swell.
57 Moderate: Moderate: Moderate: Moderate: Severe:
Renohill depth to rock, ; low strength, low strength, slope, low strength,
too clayey. ; shrink-swell. depth to rock, low strength, shrink-swell.
shrink-swell, shrink-swell,
58, 59 Severe: 1 Severe: Severe: Severe: Severe:
Shingle depth to rock, i depth to rock. depth to rook. depth to rock. depth to rock.
608:
Shingle Severe: Severe: Severe: Severe: Severe:
depth to rock, depth to rock. depth to reek. depth to rook. depth to rock.
Renohill Moderate; Moderate: Moderate: Moderate: Severe:
depth to rock, low strength, low strength, slope, low strength,
too clayey. shrink-.swell. depth to rock, low strength, shrink-swell.
shrink-swell. shrink-swell.
61 Moderate: Moderate: Moderate: Severe: Moderate;
Tassel depth to rock. depth to rock, depth to rock. slope. depth to rock.
•
62 Severe: Moderate: Severe: Moderate: Moderate;
Terry depth to rock. depth to rock. depth to rock_ depth to rock. depth to rock.
63 Severe: Moderate: Severe: Moderate: Moderate:
Terry depth to rock• depth to rock. depth to rook. ; depth to rook, depth to rock.
; slope.
64 Moderate: Moderate: Moderate; ;Moderate: Moderate:
Thedalund depth to rock. low strength. depth to rock. ; low strength, low strength.
;
65 Moderate: Moderate: Moderate: ;Moderate: Moderate:
Thedalund depth to rock. low strength. depth to rock. ; low strength, low strength.
i slope.
See footnote at end of table.
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