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2008-0572
• •
4 SOIL SURVEY
tial for urban development is only fair to poor. The main This nearly level to moderately sloping map unit is o
limitations are moderate to high shrink swell, low plains and alluvial fans throughout the survey area. I
• strength, and slow permeability. The potential is fair for makes up about 23.5 percent of the total acreage. Aboc
development of openland wildlife habitat. 35 percent is Olney soils, 20 percent is Kim soils, 15 pei
3. Weld-Colby cent is Otero soils, and 30 percent is soils of minor extent
The soils in this map unit occupy the same relativ
Deep, nearly level to moderately sloping, well drained positions on the landscape (fig. 2). Olney soils have
loams formed in calcareous eolian deposits loamy sand or sandy loam surface layer and a sandy cla
This nearly level to moderately sloping map unit is on loam subsoil. Kim soils have a loam surface layer an
plains mainly in the southeastern part of the survey area. loam and fine sandy loam underlying material. Otero soil
One small area is in the west-central part. The unit makes have a sandy loam surface layer and fine sandy loam or
up about 10 percent of the total acreage. About 50 per- derlying material.
cent is Weld soils, 35 percent is Colby soils, and 15 per- Minor in this unit are the well drained Ascalon, Nelsoi
cent is soils of minor extent. Thedalund, and Vona soils.
Weld soils occupy the broad nearly level areas. Colby This map unit is used for irrigated and nonirrigate
soils occupy the steeper side slopes. Weld soils have a cropland and for rangeland. The potential is good fo
loam surface layer and a clay and clay loam subsoil. Colby urban development and fair for wildlife habitat.
soils have a loam surface layer and silt loam underlying 6. Otero-Thedalund-Nelson
material.
Minor in this unit are the well drained Adena and Kim Deep and moderately deep, nearly level to moderatel;
soils. sloping, well drained sandy loamy and clay loam
This map unit is used mainly for cropland. About 65 formed in alluvium and eolian deposits and in residuur
percent is nonirrigated. Winter wheat is the principal from shale and sandstone
crop. If irrigated, the soils are well suited to all commonly This nearly level to moderately sloping map unit is o
grown crops. The potential is fair for development of p g
openland wildlife habitat. plains in the north-central part of the survey area. I
makes up about 3 percent of the total acreage. About 3
�—� 4. Wiley-Colby-Weld percent is Otero soils, 25 percent is Thedalund soils, Z
Deep, nearly level to moderately sloping, well drained silt percent is Nelson soils, and 15 percent is soils of mino.
• extent.
loams and loams formed in calcareous eolian deposits
Otero soils are on the nearly level or smoother side
This nearly level to moderately sloping map unit is on slopes. Thedalund and Nelson soils are intermingled am
plains in the west-central and southwestern parts of the are on the steeper side slopes. Otero soils have a sandy
survey area. It makes up about 5.5 percent of the total loam surface layer and fine sandy loam underlying
acreage. About 30 percent is Wiley soils, 30 percent is material. Thedalund soils have a loam surface layer anc
Colby soils, 15 percent is Weld soils, and 25 percent is underlying material. Shale is between depths of 20 and 4(
soils of minor extent. inches. Nelson soils have a fine sandy loam surface layer
Wiley and Colby soils form an intermingled complex and underlying material. Sandstone is between 20 and 4(
pattern on the steeper side slopes. Weld soils are along inches.
the narrow ridgetops and on the nearly level side slopes. Minor in this unit are the well drained Kim, Renohill
Wiley soils have a silt loam surface layer and a silty clay Terry, and Vona soils.
loam subsoil. Colby soils have a loam surface layer and This map unit is used mainly for irrigated cropland. Soi:
silt loam underlying material. Weld soils have a loam sur- depth is the main limitation in farming and urbar
face layer and a clay loam subsoil. development. The potential is fair for development of
Minor in this unit are the moderately well drained openland wildlife habitat.
Heldt soils and the well drained Nunn and Ulm soils.
This map unit is used mainly for cropland. About 70 7, Tassel-Thedalund-Terry
percent is irrigated and is well suited to all commonly
grown crops. In nonirrigated areas, winter wheat is the Shallow to moderately deep, gently sloping to strongly
principal crop. The potential is fair for urban develop- sloping, well drained sandy loamy to clay ]Dams formed
ment. Moderately slow permeability is the main limita- in residuum from sandstone and shale
tion. The potential is also fair for development of open- This gently sloping to strongly sloping map unit is in
land wildlife. the western part of the survey area, adjacent to and in-
cluding the sandstone breaks along some of the major
5. Olney-Kim-Otero streams. It makes up about 1 percent of the total acreage.
Deep, nearly level to moderately sloping, well drained About 50 percent is Tassel soils, 20 percent is Thedalund
sandy loams and losers formed in mixed alluvium and soils, 20 percent is Terry soils, and 10 percent is soils of
eolian deposits minor extent.
•
WELD COUNTY, COLORADO, SOUTHERN PART 23
Windbreaks and environmental plantings of trees and The potential native vegetation is dominated by blue
shrubs commonly grown in the area are generally well grama. Several mid grasses, such as western wheatgrass
ed to this soil. Cultivation to control competing and needleandthread, are also present. Potential produc-
it
etationn should be continued for as many years as tion ranges from 1,600 pounds per acre in favorable years
sible following planting. Trees that are best suited and to 1,000 pounds in unfavorable years. As range condition
have good survival are Rocky Mountain juniper, eastern deteriorates, the mid grasses decrease; blue grama, buf-
redcedar, ponderosa pine, Siberian elm, Russian-olive, and falograss, snakeweed, yucca, and fringed sage increase;
hackberry. The shrubs best suited are skunkbush sumac, and forage production drops. Undesirable weeds and an-
Siberian peashrub, lilac, and American plum. nuals invade the site as range condition becomes poorer.
Wildlife is an important secondary use of this soil. The Management of vegetation on this soil should be based
cropland areas provide favorable habitat for ring-necked on taking half and leaving half of the total annual produc-
pheasant and mourning dove. Many nongame species can tion. Seeding is desirable if the range is in poor condition.
be attracted by establishing areas for nesting and escape Sideoats grama, little bluestem, western wheatgrass, blue
cover. For pheasants, undisturbed nesting cover is essen- grama, pubescent wheatgrass, and crested wheatgrass are
tial and should be included in plans for habitat develop- suitable for seeding. The grass selected should meet the
ment, especially in areas of intensive agriculture. seasonal requirements of livestock. It can be seeded into
This soil has good potential for urban and recreational a clean, firm sorghum stubble, or it can be drilled into a
development. Increased population growth in the survey firm prepared seedbed. Seeding early in spring has
area has resulted in increased homesite construction. The proven most successful.
chief limiting feature for urban development and road Windbreaks and environmental plantings of trees and
construction is the limited capacity of the soil to support shrubs commonly grown in the area are generally well
a load. Septic tank absorption fields function properly, but suited to this soil. Cultivation to control competing
community sewage systems should be provided if the vegetation should be continued for as many years as
population density increases. Because of the permeability Possible following planting. Trees that are best suited and
of the substratum, sewage lagoons must be sealed. have good survival are Rocky Mountain juniper, eastern
Lawns, shrubs, and trees grow well. Capability class I ir- redcedar, ponderosa pine, Siberian elm, Russian olive, and
rigated. hackberry. The shrubs best suited are skunkbush sumac,
32—Kim loam, 1 to 3 percent slopes. This is a deep, lilac, Siberian peashrub, and American plum.
11 drained soil on smooth plains and alluvial fans at Wildlife is an important secondary use of this soil. The
elevations of 4,900 to 5,250 feet. It formed in mixed eolian cropland areas provide favorable habitat for ring-necked
sit and parent sediment from a wide variety of pheasant and mourning dove. Many nongame species can
rock. Included in mapping are small areas of soils that be attracted by establishing areas for nesting and escape
loamy sand underlying material. cover. For pheasants, undisturbed nesting cover is essen-
haveT call the surface layer is brown and tial and should be included in plans for habitat develop-
Typically y pale brown ment, especially in areas of intensive agriculture. Range-
loam about 12 inches thick.The upper 28 inches of the un- land wildlife, for example, the pronghorn antelope, can be
denying material is pale brown loam. The lower part to a attracted by developing livestock watering facilities,
depth of 60 inches is pale brown fine sandy loam.
managing livestock grazing, and reseeding where needed.
Permeability is moderate. Available water capacity is This soil has good potential for urban and recreational
high. The effective rooting depth is 60 inches or more. development. Increased population growth in the survey
Surface runoff is medium, and the erosion hazard is low. area has resulted in increased homesite construction. The
In irrigated areas this soil is suited to all crops com- chief limiting soil feature for urban development and road
monly grown in the area, including corn, sugar beets, construction is the limited capacity of this soil to support
beans, alfalfa, small grain, potatoes, and onions. An exam- a load. Septic tank absorption fields function properly, but
ple of a suitable cropping system is 3 to 4 years of alfalfa community sewage systems should be provided if the
followed by corn, corn for silage, sugar beets, small grain, population density increases. Because of the permeability
or beans. Land leveling, ditch lining (fig. 6), and installing of the substratum, sewage lagoons must be sealed.
pipelines may be needed for proper water applications. Lawns, shrubs, and trees grow well. Capability subclass
All methods of irrigation are suitable, but furrow ir- He irrigated, IVe nonirrigated; Loamy Plains range site.
rigation is the most common. Barnyard manure and com- 33—Kim loam, 3 to 5 percent slopes. This is a deep,
mercial fertilizer are needed for top yields. well drained soil on plains and alluvial fans at elevations
In nonirrigated areas this soil is suited to winter wheat, of 4,900 to 5,250 feet. It formed in mixed eolian deposits
barley, and sorghum. Most of the acreage is planted to and parent sediment from a wide variety of bedrock. In-
winter wheat and is summer fallowed in alternate years eluded in mapping are small areas of soils that have
to allow moisture accumulation. Generally precipitation is loamy sand underlying material.
too low for beneficial use of fertilizer. Typically the surface layer is brown and pale brown
Stubble mulch fanning, striperopping, and minimum til- loam about 10 inches thick. The upper 28 inches of the un-
lage are needed to control soil blowing and water erosion. derlying material is pale brown loam. The lower part to a
Terracing also may be needed to control water erosion. depth of 60 inches is pale brown fine sandy loam.
•
• •
28 SOIL SURVEY
]J 40—Nunn loam, 1 to 3 percent slopes. This is a deep, vegetation should be continued for as many years
well drained soil on terraces at elevations of 4,550 to 5,000 possible following planting. Trees that are best suited ai
• feet. It formed in mixed alluvium. Included in mapping have good survival are Rocky Mountain juniper, eastei
are small, long and narrow areas of sand and gravel redcedar, ponderosa pine, Siberian elm, Russian-olive, al
deposits and small areas of soils that are subject to occa- hackberry. The shrubs best suited are skunkbush sums
sional flooding. Some leveled areas are also included. lilac, Siberian peashrub, and American plum.
Typically the surface layer of this Nunn soil is grayish Wildlife is an important secondary use of this soil. TI
brown loam about 12 inches thick. The subsoil is light cropland areas provide favorable habitat for ring-neck(
brownish gray clay loam about 12 inches thick. The upper pheasant and mourning dove. Many nongame species cr
part of the substratum is light brownish gray clay loam. be attracted by establishing areas for nesting and escai
The lower part to a depth of 60 inches is brown sandy cover. For pheasants, undisturbed nesting cover is esse,
loam. tial and should be included in plans for habitat develoj
Permeability is moderately slow. Available water ment, especially in areas of intensive agriculture. Rang
capacity is high. The effective rooting depth is 60 inches land wildlife, for example, the pronghorn antelope, can
or more. Surface runoff is medium, and the erosion attracted by developing livestock watering facilitie
hazard is low. managing livestock grazing, and reseeding where needed
In irrigated areas this soil is suited to all crops com- This soil has fair to poor potential for urban develol
monly grown in the area, including corn, sugar beets, ment. It has moderate to high shrink swell, low strengt
beans, alfalfa, small grain, potatoes, and onions. An exam- and moderately slow permeability. These features creat
ple of a suitable cropping system is 3 to 4 years of alfalfa problems in dwelling and road construction. Those are
followed by corn, corn for silage, sugar beets, small grain, that have loam or sandy loam in the lower part of th
or beans. Generally such characteristics as a high clay substratum are suitable for septic tank absorption field
content or a rapidly permeable substratum slightly and foundations. Some areas of this soil are adjacent t
restrict some crops. streams and are subject to occasional flooding. The poter
All methods of irrigation are suitable, but furrow ir- tial is fair for such recreational development as camp an
rigation is the most common. Proper irrigation water picnic areas and playgrounds. Capability subclass Ile h
management is essential. Barnyard manure and commer- rigated, IIic nonirrigated; Loamy Plains range site.
cial fertilizer are needed for top yields. 41—Nunn clay loam, 0 to 1 percent slopes. This is
Most nonirrigated areas are used for small grain. The deep, well drained soil on terraces and smooth plains a
soil is summer fallowed in alternate years. Winter wheat elevations of 4,550 to 5,150 feet. It formed in mixed allu
• is the principal crop. If the crop is winterkilled, spring vium and eolian deposits. Included in mapping are smal
wheat can be seeded. Generally precipitation is too low long and narrow areas of sand and gravel deposits any
for beneficial use of fertilizer. small areas of soils that are subject to occasional flooding
Such practices as stubble mulch farming, striperopping, Some small leveled areas are also included.
and minimum tillage are needed to control soil blowing Typically the surface layer of this Nunn soil is grayis
and water erosion. brown clay loam about 9 inches thick. The subsoil is ligh
The potential native vegetation is dominated by blue brownish gray clay loam about 14 inches thick. The upper
grama. Several mid grasses, such as western wheatgrass part of the substratum is clay loam. The lower part to
and needleandthread, are also present. Potential produc- depth of 60 inches is sandy loam.
tion ranges from 1,600 pounds per acre in favorable years Permeability is moderately slow. Available water
to 1,000 pounds in unfavorable years. As range condition capacity is high. The effective rooting depth is 60 inches
deteriorates, the mid grasses decrease; blue grama, buf- or more. Surface runoff is slow, and the erosion hazard i;
falograss, snakeweed, yucca, and fringed sage increase; low.
and forage production drops. Undesirable weeds and an- This soil is used almost entirely for irrigated crops. It
nuals invade the site as range condition becomes poorer. is suited to all crops commonly grown in the area, includ•
Management of vegetation on this soil should be based ing corn, sugar beets, beans, alfalfa, small grain, potatoes,
on taking half and leaving half of the total annual produc- and onions. An example of a suitable cropping system is 3
tion. Seeding is desirable if the range is in poor condition, to 4 years of alfalfa followed by corn, corn for silage,
Sideoats grama, little bluestem, western wheatgrass, blue sugar beets, small grain, or beans. Few conservation prac-
grama, pubescent wheatgrass, and crested wheatgrass are tices are needed to maintain top yields.
suitable for seeding. The grass selected should meet the All methods of irrigation are suitable, but furrow ir-
seasonal requirements of livestock. It can be seeded into rigation is the most common. Barnyard manure and com-
a clean, firm sorghum stubble, or it can be drilled into a mercial fertilizer are needed for top yields.
firm prepared seedbed. Seeding early in spring has Windbreaks and environmental plantings of trees and
proven most successful. shrubs commonly grown in the area are generally well
Windbreaks and environmental plantings of trees and suited to this soil. Cultivation to control competing
shrubs commonly grown in the area are generally well vegetation should be continued for as many years as
•suited to this soil. Cultivation to control competing possible following planting. Trees that are best suited and
• •
WELD COUNTY, COLORADO, SOUTHERN PART 35
and switchgrass decrease and blue grama, sand dropseed, should be grown at least 50 percent of the time. Contour
and sand sage increase. Annual weeds and grasses invade ditches and corrugations can be used in irrigating close
msite as range condition becomes poorer. grown crops and pasture. Furrows, contour furrows, and
anagement of vegetation on this soil should be based cross slope furrows are suitable for row crops. Sprinkler
on taking half and leaving half of the total annual produc- irrigation is also desirable. Keeping tillage to a minimum
tion. Seeding is desirable if the range is in poor condition. and utilizing crop residue help to control erosion. Main-
Sand bluestem, sand reedgrass, switchgrass, sideoats taming fertility is important. Crops respond to applica-
grama, blue grama, pubescent wheatgrass, and crested tions of phosphorus and nitrogen.
wheatgrass are suitable for seeding. The grass selected The potential native vegetation on this site is
should meet the seasonal requirements of livestock. It can dominated by sand bluestem, sand reedgrass, and blue
be seeded into a clean, firm stubble, or it can be drilled grama. Needleandthread, switchgrass, sideoats grama,
into a firm prepared seedbed. Seeding early in spring has and western wheatgrass are also prominent. Potential
proven most successful. production ranges from 2,200 pounds per acre in favora-
Windbreaks and environmental plantings are generally ble years to 1,800 pounds in unfavorable years. As range
suited to this soil. Soil blowing, the principal hazard in condition deteriorates, the sand bluestem, sand reedgrass,
establishing trees and shrubs, can be controlled by cul- and switchgrass decrease, and blue grama, sand dropseed,
tivating only in the tree row and by leaving a strip of and sand sage increase. Annual weeds and grasses invade
vegetation between the rows. Supplemental irrigation the site as range condition becomes poorer.
may be needed at the time of planting and during dry Management of vegetation on this soil should be based
periods. Trees that are best suited and have good survival on taking half and leaving half of the total annual produc-
are Rocky Mountain juniper, eastern redcedar, ponderosa tion. Seeding is desirable if the range is in poor condition.
pine, Siberian elm, Russian-olive, and hackberry. The Sand bluestem, sand reedgrass, switchgrass, sideoats
shrubs best suited are skunkbush sumac, lilac, and Siberi- grama, blue grama, pubescent wheatgrass, and crested
an peashrub. wheatgrass are suitable for seeding. The grass selected
Wildlife is an important secondary use of this soil. should meet the seasonal requirements of livestock. It can
Ring-necked pheasant, mourning dove, and many non- be seeded into a clean, firm sorghum stubble, or it can be
game species can be attracted by establishing areas for drilled into a firm prepared seedbed. Seeding early in
nesting and escape cover. For pheasants, undisturbed spring has proven most successful.
nesting cover is essential and should be included in plans Windbreaks and environmental plantings are generally
din
r habitat development, especially in areas of intensive suited to this soil. Soil blowing, the principal hazard in
culture. establishing trees and shrubs, can be controlled by cul-
Rapid expansion of Greeley and the surrounding area tivating only in the tree row and by leaving a strip of
has resulted in urbanization of much of this Otero soil. vegetation between the rows. Supplemental irrigation
This soil has excellent potential for urban and recrea- may be needed at the time of planting and during dry
tional development. The only limiting feature is the periods. Trees that are best suited and have good survival
moderately rapid permeability in the substratum, which are Rocky Mountain juniper, eastern redcedar, ponderosa
causes a hazard of ground water contamination from pine, Siberian elm, Russian-olive, and hackberry. The
sewage lagoons. Lawns, shrubs, and trees grow well. shrubs best suited are skunkbush sumac, lilac, and Siberi-
Capability subclass IIIe irrigated, IVe nonirrigated; an peashrub.
Sandy Plains range site. Wildlife is an important secondary use of this soil.
j7 52—Otero sandy loam, 3 to 5 percent slopes. This is a Ring-necked pheasant, mourning dove, and many non-
deep, well drained soil on plains at elevations of 4,700 to game species can be attracted by establishing areas for
5,250 feet. It formed in mixed outwash and eolian nesting and escape cover. For pheasants, undisturbed
deposits. Included in mapping are small areas of soils that nesting cover is essential and should be included in plans
have loam and clay loam underlying material. Also in- for habitat development, especially in areas of intensive
eluded are small areas of soils that have sandstone and agriculture.
shale within a depth of 60 inches. Rapid expansion of Greeley and the surrounding area
Typically the surface layer of this Otero soil is brown has resulted in urbanization of much of this Otero soil.
sandy loam about 10 inches thick. The underlying material The soil has excellent potential for urban and recreational
to a depth of 60 inches is pale brown calcareous fine development. The only limiting feature is the moderately
sandy loam. rapid permeability in the substratum, which causes a
Permeability is rapid. Available water capacity is hazard of ground water contamination from sewage
moderate. The effective rooting depth is 60 inches or lagoons. Lawns, shrubs, and trees grow well. Capability
more. Surface runoff is medium, and the erosion hazard is subclass IIIe irrigated, VIe nonirrigated; Sandy Plains
low. range site.
This soil is used almost entirely for irrigated crops. It 53—Otero sandy loam, 5 to 9 percent slopes. This is a
is suited to the crops commonly grown in the area. deep, well drained soil on plains at elevations of 4,700 to
•rennial grasses and alfalfa or close growing crops 5,250 feet. It formed in mixed outwash and eolian
• •
100 SOIL SURVEY
TABLE 6.--BUILDING SITE DEVELOPMENT
[Some of the terms used in this table to describe restrictive soil features are defined in the Glossary. See
• text for definitions of "slight," "moderate," and "severe." Absence of an entry means soil was not
rated]
Soil name and Shallow Dwellings Dwellings Small Local roads
map symbol excavations without with commercial and streets
basements basements buildings
1, 2 Severe: Moderate: Moderate: Moderate: Moderate:
Altvan cutbanks cave. shrink-swell. shrink-swell. shrink-swell. shrink-swell,
frost action.
3`:
Aquolls Severe: Severe: Severe: Severe: Severe:
floods, floods, floods, floods, floods,
wetness. wetness. wetness. wetness. wetness,
frost action.
Aquents Severe: Severe: Severe: Severe: Severe:
floods, floods, floods, floods, floods,
wetness. wetness, wetness. wetness, wetness,
frost action.
4+:
a Aquolls Severe: Severe: Severe: Severe: Severe:
floods, floods, floods, floods, floods,
wetness. wetness, wetness, wetness. wetness,
frost action.
Aquepts Severe: Severe: Severe: Severe: Severe:
floods, floods, floods, floods, floods,
wetness. wetness. wetness. wetness. wetness,
frost action.
5 Slight Moderate: Moderate: Moderate: Moderate:
Ascalon low strength. low strength. low strength. frost action,
• low strength.
6, 7 Slight Moderate: Moderate: Moderate: Moderate:
Ascalon low strength. low strength. slope, frost action,
low strength. low strength.
8, 9 Slight Moderate: Moderate: Moderate: Moderate:
Ascalon low strength, low strength. low strength. frost action,
low strength.
10 Severe: Severe: Severe: Severe: Severe:
Bankard cutbanks cave, floods. floods. floods. floods.
floods.
11 , 12 Slight Slight Slight Slight Moderate:
Bresser frost action.
13 Severe: Moderate: Moderate: Severe: Moderate:
Cascajo cutbanks cave, slope, slope. slope, slope.
small stones.
14, 15 Slight Slight Slight Slight Moderate:
Colby low strength.
16, 17 Slight Slight Slight Moderate: Moderate:
Colby slope. low strength.
18":
Colby Slight Slight Slight Moderate: ',Moderate:
slope. low strength.
Adena Slight Moderate: Moderate: Moderate: ',Moderate:
low strength. I low strength. low strength, ; low strength.
slope.
See footnote at end of table.
•
• •
WELD COUNTY, COLORADO, SOUTHERN PART 101
TABLE 6.--BUILDING SITE DEVELOPMENT--Continued
•Soil name and Shallow Dwellings Dwellings Small Local roads
map symbol excavations without with commercial and streets
basements basements buildings
19 Moderate: Severe: Severe: Severe: Severe:
Colombo floods. floods. floods. floods. floods.
20 Slight Moderate: Moderate: Moderate: Moderate:
Colombo low strength. low strength. low strength. low strength,
frost action.
21 , 22 Severe: Moderate: Slight Moderate: Severe:
Dacono cutbanks cave. low strength, low strength, shrink-swell,
shrink-swell. shrink-swell. low strength.
23, 24 Slight Moderate: Moderate: Moderate: Moderate:
Fort Collins low strength. low strength, low strength. low strength.
shrink-swell.
} 25, 26 Severe: Severe: Severe: Severe: Severe:
1 Haverson floods. floods. floods. floods. floods.
27, 28 Severe: Severe: Severe: Severe: Severe:
Heldt too clayey. shrink-swell, shrink-swell, shrink-swell, shrink-swell,
low strength. low strength. low strength. low strength.
29, 30 Slight Moderate: Moderate: Moderate: Moderate:
i Julesburg low strength. low strength. low strength. low strength,
frost action.
131 , 32 Slight Moderate: Moderate: Moderate: Moderate:
Kim low strength. low strength. low strength. low strength.
33, 34 Slight Moderate: Moderate: Moderate: Moderate:
Kim low strength. low strength. low strength, low strength.
slope.
'P•
up Severe: Severe: Severe: Severe: Severe:
wetness, wetness, wetness, wetness, wetness.
cutbanks cave. floods. floods. floods.
Boel Severe: Severe: Severe: Severe: Severe:
wetness, wetness, wetness, wetness, wetness,
floods, floods. floods. floods. floods.
cutbanks cave.
6•:
Midway Severe: Severe: Severe: Severe: Severe:
too clayey. shrink-swell, shrink-swell, slope, shrink-swell,
low strength. low strength. shrink-swell, low strength.
low strength.
Shingle Severe: Severe: Severe: Severe: Severe:
1 depth to rock. depth to rock. depth to rock. depth to rock, depth to rock.
slope.
i 37 Severe: Moderate: Severe: Moderate: Moderate:
Nelson depth to rock. depth to rock, depth to rock. depth to rock, depth to rock,
low strength. low strength. low strength.
38 Severe: Moderate: Severe: Moderate: Moderate:
Nelson depth to rock. depth to rock, depth to rock. slope, depth to rock,
f low strength. depth to rock, low strength.
low strength.
39, 40, 41 , 42,
ti•
43 Moderate: Severe: Severe: Severe: Severe:
Nunn too clayey. shrink-swell, shrink-swell, shrink-swell, shrink-swell,
low strength. low strength. low strength. low strength.
See footnote at end of table.
a •
I
102 SOIL SURVEY
TABLE 6.--BUILDING SITE DEVELOPMENT--Continued
0 Soil name and Shallow Dwellings Dwellings , Small 1 Local roads
map symbol excavations without with commercial 1 and streets
basements basements buildings
44 Slight Slight Slight Slight ;Moderate:
Olney 1 low strength.
1
45 Slight Slight Slight Moderate: Moderate:
Olney slope. low strength.
46, 47 Slight Slight Slight Slight Moderate:
Olney low strength.
48 Slight Slight Slight Moderate: Moderate:
Olney slope. low strength.
49 Severe: Slight Slight Slight Slight.
Osgood cutbanks cave.
50, 51 Slight Slight Slight Slight Slight.
Otero
52, 53 Slight Slight Slight Moderate: Slight.
Otero slope.
54 Slight Severe: Severe: Severe: Moderate:
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: Severe: Severe: Severe: Severe:
Shingle depth to rock. depth to rock. depth to rock. depth to rock. depth to rock.
60*:
Shingle Severe: Severe: Severe: Severe: Severe:
depth to rock. depth to rock. depth to rock. depth to rock. depth to rock.
Renohill Moderate: ;Moderate: Moderate: Moderate: Severs:
depth to rock, I low strength, low strength, slope, low e • angth,
too clayey. ; shrink-swell. depth to rock, low strength, shrir .-swell.
shrink-swell. shrink-swell.
61 Moderate: (Moderate: Moderate: Severe: Moderate:
Tassel depth to rock. I depth to rock. depth to rock. slope. depth to rock.
62 Severe: I Moderate: Revere: Moderate: Moderate:
Terry depth to rock. I depth to rock. I depth to rock. depth to rock. depth to rock.
63 Severe: (Moderate: ;severe: Moderate: Moderate:
Terry depth to rock. depth to rock. depth to rock. depth to rock, 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.
slope.
. See footnote at end of table.
I .
104 SOIL SURVEY
TABLE 7.--SANITARY FACILITIES
[Some of the terms used in this table to describe restrictive soil features are defined in the Glossary.
•
text for definitions of "slight," "moderate," "good," "fair," and other terms used to rate soils.
Absence of an entry means soil was not rated]
Soil name and Septic tank Sewage lagoon Trench Area Daily cover
map symbol absorption areas sanitary sanitary for landfill
fields landfill landfill
1 , 2 Slight Severe: Severe: ',Slight Fair:
Altvan seepage. seepage. thin layer.
3*:
Aquolls Severe: Severe: Severe: Severe: Poor:
floods, floods, floods, ; wetness. wetness.
wetness. wetness. wetness.
Aquents Severe: Severe: Severe: ;Severe: Poor:
floods, floods, floods, ; wetness. wetness.
wetness. wetness. wetness.
4+: -
Aquolls Severe: Severe: Severe: Severe: Poor:
floods, floods, floods, I wetness. wetness.
wetness. wetness. wetness.
Aquepts Severe: Severe: Severe: ;Severe: Poor:
floods, floods, floods, ; wetness. wetness.
wetness. wetness. wetness.
5, 6 Slight Severe: Severe: Severe: Good.
Ascalon seepage. seepage. ; seepage.
7 Slight Severe: Severe: :Severe: Good.
Ascalon slope, seepage. ; seepage.
seepage.
9 Slight Severe: Severe: :Severe: Good.
Ascalon seepage. seepage. ; seepage.
10 Severe: Severe: Severe: ;Severe: Fair:
Bankard floods. floods, floods, I floods. too sandy.
seepage. seepage.
11 , 12 Slight Severe: Severe: ;Severe: Good.
Bresser seepage. seepage. ; seepage.
13 Moderate: Severe: Severe: :Severe: Poor:
Cascajo slope. slope, seepage. ; seepage. small stones.
seepage,
small stones. ;
14, 15, 16 Slight ;Moderate: Slight Slight Good.
Colby : seepage.
17 Slight Severe: Slight Slight Good.
Colby ; slope.
181:
Colby Slight ;Severe: Slight Slight Good.
slope.
Adena Moderate: ;Moderate: Slight Slight Good.
percs slowly. 1 seepage,
slope.
19 Moderate: ;Severe: Moderate: ;Moderate: Good.
Colombo floods. I floods. floods. I floods.
20 Slight 'Moderate: Slight ;Slight Good.
Colombo slope,
seepage.
• See footnote at end of table.
7
Ill
ELD COUNTY, COLORADO, SOUTHERN PART 105
•
TABLE 7.--SANITARY FACILITIES--Continued
Soil name and Septic tank Sewage lagoon Trench Area Daily cover
• map symbol absorption areas sanitary sanitary for landfill
fields landfill landfill
21 , 22 Severe: Severe: :Severe: Slight Fair:
Dacono percs slowly. seepage. ; seepage. too clayey.
23 Moderate: Moderate: ;Slight Slight Good.
Fort Collins percs slowly. seepage.
24 ;Moderate: Moderate: Slight Slight
Fort Collins ; percs slowly• seepage, g Good.
slope.
25, 26 ;Severe: Severe: Severe: Severe: Good.
Haverson ; floods. floods. floods. floods.
f27, 28 ;Severe: Moderate: Severe: Slight Poor:
Heldt ; percs slowly. slope. too clayey. too clayey.
Y Y•
29, 30 Slight Severe: Severe: Severe: Good.
Julesburg seepage. seepage. seepage.
7 31 Slight Moderate: Slight Slight Good.
Kim seepage.
32, 33 Slight Moderate: Slight Slight
: 1 Kim seepage, Good.
.14r
slope.
34 Slight Severe: Slight Slight Good.
Kim slope.
35*:
Loup Severe: Severe: Severe: Severe: Poor:
wetness, wetness, wetness, wetness, wetness.
floods. seepage, floods, floods,
floods. seepage. seepage.
1 Severe: Severe: Severe: Severe: Poor:
wetness, wetness, wetness, wetness, too sandy.
floods. seepage, floods,
floods.
floods. seepage.
36*:
Midway Severe: Severe: Severe: Moderate: Poor:
percs slowly, depth to rock, depth to rock, slope. too clayey,
depth to rock. slope. too clayey. thin layer.
Shingle Severe: Severe: Severe: Moderate: Severe:
j depth to rock. slope, depth to rock. slope. thin layer.
I depth to rock.
37, 38 Severe: Severe: Severe: Severe: Fair:
Nelson depth to rock. depth to rock, depth to rock, seepage. thin layer.
seepage. seepage.
39 Severe: Moderate: Slight Slight Fair:
Nunn percs slowly, excess humus.
too clayey.
f a40 Severe: Moderate: Slight Slight Fair:
/7 Nunn percs slowly. excess humus,
slope. too clayey.
Al Severe: Moderate: Slight Slight
Nunn percs slowly. excess humus. g Fair
too•clayey.
42 Severe: Moderate: Slight Slight
'Dunn g Fair:
i percs slowly, excess humus, too clayey.
slope. Y Y•
See footnote at end of table.
F .
I •
106 SOIL SURVEY
TABLE 7.--SANITARY FACILITIES--Continued
• Soil name and Septic tank Sewage lagoon Trench Area Daily cover
map symbol absorption areas sanitary sanitary for landfill
fields landfill landfill
43 Severe: Moderate: Slight Slight Fair:
Nunn percs 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.
a 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 percs 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. thin layer.
• Renohill Severe: Severe: Severe: Slight Fair:
percs slowly, depth to rock. depth to rock. too clayey,
depth to rock. thin layer,
51 Severe: Severe: Severe: Severe: Poor:
Tassel depth to rock. depth to rock, depth to rock, seepage. thin layer,
seepage, seepage. area reclaim.
slope.
6?, 63 Severe: Severe: Severe: Slight Fair:
Terry depth to rock. depth to rock, ; depth to rock. thin layer,
seepage. area reclaim.
64, 55 Severe: Severe: ;Severe: ;Slight Fair:
Thedalund depth to rock. depth to rock. depth to rock, ; thin layer.
56 Severe: ':Slight Moderate: :Slight Poor:
Ulm peres slowly. too clayey. too clayey.
57 Severe: Moderate: Moderate: Slight Poor:
91m percs slowly. slope. too clayey. too clayey.
58* Moderate: Severe: Severe: Severe: Poor:
Ustic Torriorthents slope. seepage, seepage, seepage. too sandy,
sma:1 stones. too sandy. small stones.
59, 70 Slight Severe: Severe: Severe: Poor:
Valent .see age.p too sandy, seepage. too sandy.
seepage.
71*:
Valent ',Slight Severe: ;Severe: Severe: Poor:
seepa'.e. I too sandy, seepa,me. too sandy.
seepage.
• See footnote at end of table.
• •
108 SOIL SURVEY
TABLE 8.--CONSTRUCTION MATERIALS
(Some of the terms used in this table to describe restrictive soil features are defined in the Glossary. See
• text for definitions of "good," "fair," "poor," and "unsuited." Absence of an entry means soil was not
rated)
Soil name and Roadfill Sand Gravel Topsoil
map symbol
1 , 2 Good Fair: Fair: Fair:
Altvan excess fines. excess fines. thin layer.
3*:
Aquolls Poor: Good ;Fair: Poor:
wetness, I excess fines. wetness.
frost action.
Aquents Poor: Good ;Fair: Poor:
wetness, I excess fines. wetness.
frost action.
;
4*:
q Aquolls Poor: Unsuited Unsuited Poor:
wetness, wetness.
frost action.
I
Aquepts Poor: Unsuited Unsuited Poor:
wetness, wetness.
frost action.
5, 6, 7, 8, 9 Fair: Poor: Unsuited Good.
Ascalon low strength, excess fines.
frost action,
shrink-swell.
10 Fair: Fair: Unsuited Poor:
Bankard low strength. excess fines. too sandy.
•11 12 Fair: Poor: Unsuited Fair:
Bresser frost action. excess fines. small stones.
13 Good Good Good Poor:
Cascajo small stones.
14, 15, 16, 17 Fair: Unsuited Unsuited Good.
Colby low strength.
18*:
Colby Fair: Unsuited Unsuited Good.
low strength.
Adena Fair: Unsuited Unsuited Fair:
low strength. too clayey.
19, 20 Fair: Unsuited Unsuited Fair:
Colombo low strength, too clayey.
frost action.
21 , 22 Good ;Good Good Fair:
flacono too clayey.
I
23, 24 ;Fair: (Unsuited Unsuited Good.
Fort Collins ; low strength.
25, 26 ;Fair: ;Unsuited Unsuited Good.
Haverson ; low strength.
27, 28 ;Poor: ;Unsuited Unsuited Poor:
Heldt ; shrink-swell , too clayey.
low strength.
See footnote at end of table.
•
7 0 I
WELD COUNTY, COLORADO, SOUTHERN PART
109
TABLE B.--CONSTRUCTION MATERIALS--Continued
Soil name and Roadfill
map symbol Sand Gravel
ill, Topsoil
29, 30 Fair: Poor:
Julesburg low strength, Unsuited Good.
B excess fines.
frost action.
31 , 3?, 33, 34 Fair: Unsuited
Kim low strength. Unsuited Good.
35*:
Loup Poor: Fair:
wetness. Unsuited: Poor:
excess fines. excess tines. wetness.
i Boel Fair:
Fair: Unsuited
wetness. excess fines. Fair:
thin layer.
36*:
Midway Poor: Unsuited
Unsuited Poor:shrink-swell,
low strength, too clayey.
thin layer.
Shingle Poor: Unsuited
Unsuited Poor:thin layer.
area reclaim.
37, 38 Poor: Unsuited
• Nelson thin layer. Unsuited Good.
39, 40 Poor: Unsuited
Nunn shrink-swell, Unsuited Fair:
low strength. thin layer.
I{ 41 , 4' Poor:
Nunn shrink-swell, Unsuited Unsuited Fair:
low strength. thin layer,
too clayey.
Poor:
nn shrink-swell , Unsuited Unsuited Poor:
low strength. too sandy.
44, 45 Fair:
Olney Pexc: Unsuited Fair:
low strength. excess fines.
too sandy,
thin layer.
46, 47, 48 Fair: Poor:
Olney low strength. excess fines, Unsuited Good.
49 Good Poor:
Osgood Unsuited Poor:
excess fines. too sandy.
50, 51, 52, 53 ,Good Poor:
Otero Unsuited Good.
excess fines.
54, 55 'Fair: Unsuited
Paoli I low strength, - Unsuited Good.
frost action.
56, 57 Poor: Unsuited
Renohill low strength, Unsuited Poor:
thin layer. •
thin layer.
58, 59 Poor: ;Unsuited
Shingle thin layer. Jnsuited Poor:
area reclaim.
6011:
Shingle Poor: ;Unsuited
Unsuited Poor:
thin layer.
area reclaim.
See footnote at end of table.
•
. $ •
WELD COUNTY, COLORADO, SOUTHERN PART
l'it
TABLE 9.--WATER MANAGEMENT
[Some of the terms used in this table to describe restrictive soil features are defined in the Glossary.
of an entry means soil was not evaluated]
Soil name and Pond Embankments, ; Drainage Irrigation Terraces Gr
map symbol reservoir dikes, and and wat
areas levees diversions
1 , 2 Seepage Thin layer Favorable Favorable Rooting depth Rootin
Altvan
3•:
Aquolls Floods, Floods, Wetness Wetnes
poor outlets. wetness.
Aquents Floods, Floods, Wetness Wetnes
poor outlets. wetness.
4*.
-�)Aquolls Floods, Floods, Wetness Wetnes
)00-0-,:?Aquolls
/ poor outlets. wetness.
Aquepts ' Floods, Floods, Wetness :Wetnes
poor outlets. wetness.
5 Seepage, Piping, Slope Slope, Erodes easily, Erodes
Ascalon slope. low strength. erodes easily. piping.
6 Seepage, Piping, Slope Slope, Erodes easily, Erodes
Ascalon slope. low strength. erodes easily. piping. slope
P
7 Seepage, Piping, Slope Slope, Erodes easily, Erodes
Ascalon slope. low strength. erodes easily. piping, slope
slope.
8 Seepage, Piping, Favorable Favorable Erodes easily, Erodes
Ascalon slope. low strength. piping.
• 9 Seepage, Piping, Slope Slope, Erodes easily, Erodes
Ascalon slope. low strength. erodes easily. piping.
10 Seepage Piping, Cutbanks cave, Droughty, Erodes easily, Drought
Bankard seepage, floods, floods, piping. erode:
erodes easily. poor outlets. seepage.
11 Seepage Favorable Favorable Droughty Erodes easily, Erodes
Bresser
piping.
.. 12 Seepage, Favorable Slope Slope, Erodes easily, Erodes
z, Bresser slope. erodes easily. piping.
13 Seepage, Seepage Slope Slope, Complex slope, Drought
I Cascajo slope. droughty. piping, , slope.
too sandy.
- - 14 Seepage Low strength, Favorable Favorable Favorable Favorat
Colby piping.
15 Seepage Low strength, Favorable Favorable Favorable Slope,
Colby piping. erodes
16, 17 Seepage Low strength, Slope Slope, Favorable ;Slope,
Colby piping. erodes easily. ; erodes
18*:
ItColby Seepage Low strength, Slope Slope, Favorable ;Slope,
tx piping. erodes easily. : erodes
Adena Slope, Low strength, Slope, Slope, Slope, ;Slope,
seepage. piping. peres slowly. peres slowly. piping. percs
g.
+: 19 Seepage Low strength, Floods Favorable Erodes easily ;Erodes
Colombo compressible.
See footnote at end of table.
$ •
112 - SOIL SURVEY
TABLE 9.--WATER MANAGEMENT--Continued
-T
foil name and Pond Embankments, Drainage Irrigation Terraces Grassed
map symbol reservoir dikes, and and waterways
areas levees diversions
,I
20 Seepage Low strength, Floods, Slope, Erodes easily Erodes easily.
Colombo compressible. slope. erodes easily.
21, 22 Seepage Shrink-swell, Slope, Slow intake, Peres slowly--- Peres slowly.
Dacono seepage, peres slowly. slope.
piping.
23 Seepage Low strength--- Peres slowly--- Favorable Favorable Favorable.
Fort Collins
24 Slope, Low strength--- Slope, Slope Favorable Favorable.
Fort Collins seepage. percs slowly.
25 Seepage Low strength, Floods Floods Floods, Favorable.
Haverson compressible, piping.
piping.
26 Seepage Low strength, Slope Slope Floods, Favorable.
Haverson compressible, piping.
piping.
27, 28 Slope Low strength, Peres slowly, Slope, Percs slowly--- Peres slowly.
Heldt shrink-swell. slope. percs slowly,
slow intake.
29 Seepage Seepage, Favorable Droughty Soil blowing, Erodes easily.
Julesburg piping, piping.
low strength.
30 Seepage, Seepage, Slope Droughty, Soil blowing, Erodes easily.
Julesburg slope. piping, slope, piping.
low strength. erodes easily.
411 Seepage, Piping, Favorable Favorable Slope, Slope.
slope. low strength, piping.
hard to pack.
32, 33, 34 Seepage, Piping, Slope Slope Slope, Slope.
.......7
9 Kim slope. low strength, piping.
hard to pack.
35•:
Loup Seepage Seepage, Poor outlets, Wetness, Wetness Wetness.
piping. cutbanks cave. seepage.
Boel Seepage Seepage, Wetness, Fast intake, Wetness, Wetness,
erodes easily, floods, seepage, too sandy. floods.
piping, poor outlets. wetness.
36':
Midway Slope, Thin layer, Complex slope, Complex slope, Slope, Slope,
depth to rock, shrink-swell, depth to rock, rooting depth, depth to rock, percs slowly,
seepage. low strength. excess salt. excess salt. poor outlets. excess salt.
Shingle Slope, Low strength, Depth to rock, Slope, Slope, Slope,
depth to rock. thin layer. slope. rooting depth. depth to rock. rooting depth.
37 Depth to rock, Piping, Slope, Slope, Depth to rock Rooting depth.
Nelson seepage. thin layer, depth to rock. rooting depth.
low strength.
38 Slope, Piping, Slope, Slope, Slope, Slope,
Nelson depth to rock, thin layer, depth to rock. rooting depth. depth to rock, rooting depth.
seepage. low strength.
39 Favorable Compressible, Percs slowly--- Percs slowly--- Peres slowly--- Favorable.
Nunn shrink-swell,
hard to pack.
illpee footnote at end of table.
1 •
WELD COUNTY, COLORADO, SOUTHERN PART 11.
TABLE 9.--WATER MANAGEMENT--Continued
Soil name and Pond Embankments, Drainage Irrigation Terraces Grassed
`
map symbol reservoir dikes, and and waterways
_ are_ ay__, levees diversions
49 Favorable
`lunn Compressible, Peres slowly, Peres slowly, Peres slowly--- Favorable.
shrink-swell, slope. slope.
hard to pack.
41 Favorable Compressible, Peres slowly--- Peres slowly--- Peres slowly---
Nunn shrink- Favorable.
swell,
hard to pack.
42 Favorable Compressible, Peres slowly, Peres slowly, Peres slowly---
Nunn shrink-swell, slope. slope. - Favorable.
hard to pack.
43 Favorable Compressible, Peres slowly--- Peres slowly--- Peres slowly--- Favorable.
Nunn shrink-
swell,
hard to pack.
44 Seepage, Piping, Slope Soil blowing, Erodes easily, Erodes easily.
Olney slope. low strength. droughty. piping.
45 Seepage, Piping, Slope Soil blowing, Erodes easily, Erodes easily.
Olney slope. low strength. droughty, piping.
slope.
46 ;Seepage, Piping, Favorable Favorable Erodes easily, Erodes easily.
Olney ; slope. low strength. piping.
47, 43 ;Seepage, Piping, Slope Slope, Erodes easily, Erodes easily.
Olney ; slope. low strength. erodes easily. piping.
49 ;Seepage Piping Favorable Soil blowing--- Too sandy, Erodes easily.
Osgood
piping.
59 Seepage Piping, Favorable Droughty Erodes easily, Erodes easily.
ero seepage. piping.
Otero, 53 Seepage, Piping, Slope Slope, Erodes easily, Erodes easily.
�. slope. seepage. erodes easily, piping.
droughty.
54 Seepage Piping, Favorable Favorable Piping Favorable.
Paoli low strength.
55 Seepage Piping, Slope Slope Piping Favorable.
Paoli low strength.
56 ;Depth to rock Low strength, Depth to rock, Rooting depth, Depth to rock, Rooting depth,
Renohill thin layer,y peres slowly. slow intake. peres slowly. peres slowly.
compressible.
57 ;Slope, Low strength, Slope, Slope, Depth to rock, Rooting depth,
Renohill ; depth to rock. thin layer, depth to rock, rooting depth, peres slowly. peres slowly.
compressible. peres slowly. slow intake.
58, 59 ;Slope, Low strength, Depth to rock, Slope, Depth to rock Rooting depth.
Shingle depth to rock. thin layer. slope. rooting depth.
5D..
Shingle ;Slope, Low strength, Depth to rock, Slope, ;Depth to rock Rooting depth.
; depth to rock. thin layer. slope. rooting depth. ;
Renohill ;Slope, Low strength, Slope, Slope, ;Depth to rock, Rooting depth,
; depth to rock. thin layer, depth to rock, rooting depth, ; peres slowly. peres slowly.
compressible. peres slowly. slow intake.
31 Depth to rock, Erodes easily, Not needed Droughty, ;Depth to rock, Rooting depth,
Tassel slope. , thin layer. rooting depth. ; erodes easily
. erodes easily.
",' Depth to rock, ;Piping„ Slope, Slope, ;Depth to rock, Rooting depth,
Terry seepage. ; thin layer. rooting depth. rooting depth, ; piping, soil blowing.
soil blowing. ; soil blowing.
•See footnote at end of table.
i
ill .
111
124 SOIL SURVEY
TABLE 12.--ENGINEERING PROPERTIES AND CLASSIFICATIONS
[The symbol < means less than; I means greater than. Absence of an entry means data were not estimated]
Classification Frag- Percentage passing
Illikoil name and ;Depth USDA texture ments sieve number-- Liquid Plas-
map symbol I Unified AASHTO 1 3 i limit ticity
inches 4 10 40 200 index
In Pct Pct
1, 2 0-10 Loam CL-ML A-4 0 90-100 85-100 60-95 50-75 20-30 5-10
Altvan ;10-25 Clay loam, loam CL A-6, A-7 0 95-100 95-100 85-100 70-80 35-50 15-25
;25-50 Sand and gravel SP, SP-SM A-1 0 75-95 70-90 25-35 0-10 --- NP
3*.
Aquolls ; 0-48 Variable --_ --- --- ---
:48-60 Sand, gravelly SP, SP-SM A-1 0-10 60-90 50-70 30-50 0-10 --- NP
sand.
Aquents 0-48 Variable --- --- --- --- _ ---
48-60 Sand and gravel SP, SP-SM A-1 0-10 60-90 50-70 30-50 0-10 --- NP
4*.
Aquolls 0-60 Variable --- --- --- --- ___ ___ ___ --- ---
Aquepts 0-60 Variable --- --- ---
5, 6, 7 0-8 Sandy loam SM A-2, A-4 0 95-100 90-100 70-95 25-50 15-25 NP-5
Ascalon 8-18 Sandy clay loam SC, CL A-6 0 95-100 90-100 80-100 40-55 20-40 10-20
18-60 Sandy loam, SC, A-4, A-6 0 95-100 95-100 75-95 35-65 20-40 5-15
sandy clay SM-SC,
loam, fine CL,
sandy loam. CL-ML
8, 9 0-8 Loam SM A-2, A-4 0 95-100 90-100 70-95 25-50 15-25 NP-5
Ascalon 8-18 Sandy clay loam SC, CL A-5 0 95-100 90-100 80-100 40-55 20-40 10-20
18-60 Sandy loam, SC, A-4, A-6 0 95-100 95-100 75-95 35-65 20-40 5-15
sandy clay SM-SC,
loam, fine CL,
sandy loam. ; CL-ML
7. 0-4 Sandy loam ;SM A-2, A-4 0 ---
and 4-60 Fine sand, sand, ;SP- 95-100 90-100 60-70 30-40NP
SM, SM A-2, 0-5 70-100 60-100 40-70 5-25 --- NP
gravelly sand. ' A-3,
A-1
i
11 , 12 0-16 Sandy loam 'SM A-1 , A-2 0 95-100 75-100 35-50 20-35 15-25 NP-5
Dresser 16-25;Sandy clay loam SC A-2, 0 95-100 75-100 50-70 30-50 30-55 10-25
A-6
A-7
25-301Sandy loam, ;SC, SM-SC A-2, A-1 0 90-100 60-100 30-60 20-30 25-35 5-15
I coarse sandy
I loam., gravelly
sandy loam.
30-50 Loamy coarse SP-SC A-2, A-1 0-5 80-100 35-85 20-50 5-10 20-30 5-10
sand , gravelly
loamy sand,
very gravelly
loamy sand .
0-9 ;ravelly sandy GM A-1 , A-2 0-15 50-65 50-60 15-40 10-35 --- NP
Tas .ot0 loam.
9-31 Very gravelly GP-GM, A-1 0-15 15-50 15-50 5-30 0-20 --- NP
sandy loam, GP, GM
; very gravelly
I loamy sand,
I very gravelly
and.
31-60IVery gravelly GP SP, IA-1 0-15 10-50 ;10-60 5-30 0-10 --- NP
loamy sand, GP-GM,
very gravelly SP-S^'
I sand , gravelly
sand.
_e fo,ttote at end of table.
1
•
WELD COUNTY, COLORADO, SOUTHERN PART 125
TABLE 12.--ENGINEERING PROPERTIES AND CLASSIFICATIONS--Continued
Classification Frag- Percentage passing
• Soil name and Depth USDA texture ments sieve number-- Liquid ; Plas-
map symbol Unified AASHTO > 3 limit ; ticity
inches 4 10 40 200 i index
In Pct Pct
14, 15, 16, 17 0-7 Loam CL-ML A-4 0 100 100 90-100 85-100 25-30 ; 5-10
Colby 7-60 Silt loam, loam, CL-ML A-4 0 100 100 90-100 85-100 25-30 1 5-10
very fine sandy
loam.
18*:
Colby 0-7 Loam CL-ML A-4 0 100 100 90-100 85-100 25-30 1 5-10
7-60 Silt loam, loam, CL-ML A-4 0 100 100 90-100 85-100 25-30 1 5-10
very fine sandy
loam.
Adana 0-6 Loam ML A-4 0 100 100 90-100 70-90 20-30 ; NP-5
6-9 Clay, clay loam, CH, CL A-6, A-7 0 100 100 95-100 80-90 35-60 i 15-35
silty clay
loam.
9-60 Loam, silt loam, ML A-4 0 100 100 90-100 75-90 20-30 i NP-5
very fine sandy
loam.
19, 20 0-1U Clay loam CL-ML A-4 0 95-100 80-100 75-90 50-70 25-30 5-10
Colombo 14-21 Clay loam, loam CL A-6 0 95-100 75-100 75-90 50-70 20-30 10-15
21-60 Stratified clay CL, CL-ML A-4, A-6 0-5 90-100 75-100 70-90 50-60 20-30 I 5-15
loam to sand.
21 , 22 0-12 Clay loam CL, A-6, A-4 0 85-100 75-100 75-95 70-80 20-40 I 5-20
Dacono CL-ML
12-21 Clay loam, clay, CL A-6, A-7 0 75-100 60-100 55-95 50-85 35-45 15-20
gravelly clay
loam.
21-27 Sandy clay loam, CL, SC A-6 0 75-100 60-100 50-95 40-85 25-40 10-20
loam, silt
loam. NP
• 27-60 Very gravelly SP, GP ;A-1 0 35-80 5-50 5-40 0-5 ---
sand.
23, 24 0-7 Loam CL-ML A-4 0 95-100 90-100 85-100 50-65 25-30 5-10
Fort Collins 7-11 Loam clay loam CL A-6 0 95-100 90-100 85-95 60-75 25-40 11-60 Loam, fine 15-25
sandy CL, CL-ML A-4, A-6 0 95-100 90-100 80-95 50-75 25-35 1 5-15
loam.
25, 26 0-4 Loam ML, CL-ML A-4 0 95-100 80-100 75-90 50-60 20-30 1 NP-10
Haverson 4-60 Stratified clay ML, CL-ML A-4 0 95-100 75-100 75-90 50-60 20-30 i NP-10
loam to sand.
27, 28 0-60 Silty clay CH, CL A-7 0 95-100 95-100 95-100 75-95 45-55 i 25-35
Heldt
29, 30 0-12 Sandy loam SM, ML A-2, A-4 0 95-100 75-100 45-85 25-55 --- NP
Julesburg 12-27 Fine sandy loam, SM, ML A-2, A-4 0 95-100 75-100 50-85 30-55 15-25 I NP-5
sandy loam.
27-60 Sandy loam, SM A-2, 0 95-100 75-100 40-85 15-50 --- i NP
loamy sand, A-4,
fine sand. A-1
31 , 32, 33, 34 0-12 Loam ML, SM A-4 0-5 90-100 75-100 60-90 45-75 20-35 I NP-5
Kim 12-40 Loam, clay loam CL, CL-ML A-4, A-6 0-5 80-100 75-100 70-95 60-85 25-40 i 5-15
40-50 Fine sandy loam SM, ML A-4 0-5 SO-100 75-100 70-95 40-55 20-30 NP-5
35*: ---
Loup 0-16 Loamy sand SM .4-2 0 100 100 50-100 15-30 NP
---
16-60 Loamy sand, sand SP-SM, SM: 4-2, A-3 0 100 100 65-100 5-20 NP
Boel 0-14 Loamy sand SM IA-2 0 100 100 85-95 20-35 --- NP
14-60 Fine sand, loamy SP, SM, ;A-2, A-3 0 100 100 85-95 0-25 --- NP
fine sand, SP-SM
coarse sand.
36*:
Midway 0-13 Clay CL, CH ;4-7 0 100 100 90-100 80-95 45_60 20-35
_
13 Weathered --- --- --- --- --- ---
bedrock.
•
See footnote at end of table.
MB
Ill IS
126 SOIL SURVEY
TABLE 12.--ENGINEERING PROPERTIES AND CLASSIFICATIONS--Continued
Classification Frag- Percentage passing
Soil name and Depth USDA texture ments sieve number-- Liquid Plas-
map symbol Unified AASHTO > 3 limit ticity
inches 4 10 1 40 200 index
In Pct Pct
36.;
Shingle 0-6 Loam CL-ML A-4 0-5 75-100 75-100:70-95 55-75 25-35 5-10
6-18 Clay loam, loam CL A-6 0 75-100 75-100 65-100 50-80 30-40 10-20
18 Unweathered --- --- --- --- --- --- --- --- ---
bedrock.
37, 38 0-9 Fine sandy loam ML, SM A-4 0-5 75-100 75-100 70-90 45-60 --- NP
Nelson 9-30 Fine sandy loam, SM, ML A-4, A-2 0 75-100 75-100 60-85 30-55 NP
sandy loam.
30 Weathered --- --- --- --- --- --- --- --- ---
bedrock.
39, 40 0-9 Loam CL, SC A-6 0-5 95-100 80-95 70-95 45-75 25-40 10-20
Nunn 9-29 Clay loam, clay CL, CH A-6, A-7 0-5 95-100 90-100 85-95 65-75 35-60 20-35
29-60 Clay loam, loam, CL, A-4, 0-5 80-100 80-100 60-90 25-75 15-40 5-20
sandy loam. CL-ML, A-6,
SM-SC, A-2
SC
41, 42 0-9 Clay loam CL, SC A-6 0-5 95-100 80-95 70-95 45-75 25-40 10-20
Nunn 9-29 Clay loam, clay CH A-6, A-7 0-5 95-100 90-100 85-95 65-75 35-60 20-35
29-60 Clay loam, loam, CL, A-4, 0-5 80-100 80-100 60-90 25-75 15-40 5-20
sandy loam. CL-ML, A-6,
SM-SC, A-2
SC
43 0-9 Loamy sand SM A-2 0-5 95-100 80-95 :60-80 20-30 --- NP
Nunn 9-30 Clay loam, clay CL, CH A-6, A-7 0-5 95-100 90-100:85-95 65-75 35-60 20-35
30-60 Clay loam, loam, CL, A-4, 0-5 80-100 80-100:60-90 25-75 15-40 5-20
sandy loam. CL-ML, A-6,
SM-SC, A-2
SC :
• 45 0-10 Loamy sand SM A-2 0 95-100:90-100 60-90 15-25 --- NP
ney 10-20 Sandy clay loam SC, CL A-6 0 95-100190-100 80-100 40-55 20-40 10-20
20-25 Sandy loam, SC, A-4, A-6 0 95-100195-100 75-95 35-55 20-35 5-15
sandy clay SM-SC,
' loam, fine CL,
sandy loam. CL-ML
25-60 Fine sandy loam, SM A-2 0 95-100 95-100 70-95 20-35 --- NP
loamy fine
sand.
46, 47, 48 0-10 Fine sandy loam SM A-2 0 95-100 90-100 70-95 20-35 15-25 NP-5
Olney 10-20 Sandy clay loam SC, CL A-6 0 95-100 90-100 80-100 40-55 20-40 10-20
20-25 Sandy loam, SC, A-4, A-6 0 95-100 95-100 75-95 35-55 20-35 5-15
sandy clay SM-SC,
loam, fine CL,
sandy loam. CL-ML
25-60 Fine sandy loam, SM A-2 0 95-100 95-100 70-95 20-35 --- NP
loamy fine
sand.
4q 0-22 Sand SM A-2 0 100 100 65-80 15-30 --- NP
Osgood 22-34,Sandy loam SM A-2, A-4 0 100 100 60-80 30-40 --- NP
34-60:Loamy sand, sand 3M A-2 0 100 95-100 50-75 10-25 --- NP
50, 51 , 52, 53 , 0-121Sandy loam SM A-2 0-1 95-100 75-100 50-80 20-35 --- NP
Otero :12-60:Sandy loam, fine SM A-2, A-1 0-1 90-100 50-100 40-80 20-35 --- NP
sandy loam,
gravelly sandy
loam.
54, 55 0-20 Loam ML A-4 0 95-100 90-100 75-95 55-75 25-35 NP-5
Paoli ;20-25 Fine sandy loam, SM A-4 0 80-100 80-100 60-85 35-50 --- NP
sandy loam.
25-60 Fine sandy loam, SM A-2, A-4 0 75-100 75-100 55-85 30-50 --- NP
sandy loam.
See footnote at end of table.
• $ELD COUNTY, COLORADO, SOUTHERN PAS 129
TABLE 13.--PHYSICAL AND CHEMICAL PROPERTIES OF SOILS
[The symbol < means less than; > means greater then. The erosion tolerance factor (T) is for the entire
profile. Absence of an entry means data were not available or were not estimated]
--� Risk of corrosion r osion Wind
Soil name and :Depth Permea- Available Soil Salinity Shrink- factors erodi-
map symbol i bility water reaction swell Uncoated Concrete bility
capacity otential steel K T group
In n hr In/in 2H Mmhos/cm�
1 , 2 0-10 0.6-2.0 0.20-0.24 6.6-7.8 --- Low Moderate Low 0.24 3 5
Altvan 10-25 0.6-2.0 0.15-0.17 7.4-8.4 <2 Moderate Moderate Low 0.28
25-60 >20 0.02-0.04 7.4-9.0 <2 Low Moderate Low 0.10
3•:
Aquolls 0-48 --_ --- --- ---
48-60 >20 0.04-0.06 7.4-8.4 2-16 Low High Moderate ---
Aquents 0-48 --- ---
48-60 >20 0.04-0.06 7.4-8.4 2-16 Low High Moderate ---
4t:
a Aquolls 0-60 --- --- --- ---
Aquepts 0-60 ___ ___ ___ ___
5, 6, 7, 8, 9 0-8 0.6-6.0 0.11-0.16 6.6-7.8 <2 Low Low ;Low 0.17 5 3
Ascalon 8-18 0.6-2.0 0.13-0.15 6.6-7.8 <2 Moderate Moderate :Low 0.24
18-60 0.6-6.0 0.11-0.15 7.9-8.4 <2 Low Moderate :Low 0.24
10 0-4 2.0-6.0 0.09-0.12 7.4-8.4 <2 Low Moderate ;Low 0. 10 5 3
Bankard 4-60 6.0-20 0.05-0.08 7.4-8.4 <2 Low Moderate :Low 0.10
11, 12 0-16 0.6-6.0 0.11-0.13 6.1-7.3 --- Low Low :Low 0.10 5 2
Bresser 16-25 0.6-2.0 0.15-0.18 6.6-7.3 --- Low Moderate ;Low 0.15
25-30 0.6-6.0 0.10-0.13 6.6-7.3 --- Low Low !Low 0.10
30-60 2.0-20 0.05-0.08 6.6-7.3 --- Low Low :Low 0.10
13 0-9 2.0-6.0 0.07-0.09 7.4-8.4 <2 Low Moderate :Low 0.10 5 8
Cascajo 9-31 6.0-20 0.05-0.08 7.4-8.4 <2 Low Moderate :Low 0.10
31-60 6.0-20 0.05-0.06 7.4-8.4 <2 Low Moderate ;Low 0.10
40, 15, 16, 17 0-7 0.6-2.0 0.20-0.24 6.6-8.4 <2 Low Moderate :Low 0.37 5 4L
Colby 7-60 0.6-2.0 0.17-0.22 7.4-8.4 <2 Low Moderate ;Low 0.37
18•:
Colby 0-7 0.6-2.0 0.20-0.24 6.6-8.4 <2 Low Moderate :Low 0.37 5 4L
7-60 0.6-2.0 0.17-0.22 7.4-8.4 <2 Low Moderate ;Low 0.37
Adena 0-6 0.6-2.0 0.18-0.21 6.6-7.8 <2 Low Moderate :Low 0.37 5 5
6-9 0.06-0.2 0.16-0.18 6.6-7.8 <2 High High :Low 0.24
9-60 0.6-2.0 0.16-0.18 7.4-8.4 <2 Low High ;Low 0.32
19, 20 0-14 0.6-2.0 0.14-0.18 7.4-8.4 <2 Low High :Low 0.32 5 5
Colombo 14-21 0.6-2.0 0.14-0.16 7.4-8.4 <2 Moderate High :Low 0.28
21-60 0.6-2.0 0.14-0.16 7.4-8.4 <2 Low High :Low 0.28
21 , 22 0-12 0.2-0.6 0.19-0.21 6.6-7.8 <2 Moderate Moderate :Low 0.24 3 5
Dacono 12-21 0.2-0.6 0.15-0.21 7.4-8.4 <2 High High :Low 0.24
21-27 0.2-2.0 0.13-0.18 7.4-8.4 <2 Moderate High ;Low 0.15
27-60 >20 0.03-0.05 7.4-8.4 <2 Low High Low 0.10
23, 24 0-7 0.6-2.0 0.16-0.20 6.6-7.8 <2 Low Moderate Low 0.20 5 6
Fort Collins 7-11 0.6-2.0 0.16-0.18 7.4-7.8 <2 Moderate Moderate Low 0.20
11-60 0.6-2.0 0.16-0.18 7.4-8.4 <2 Low High Low 0.20
25, 26 0-4 0.6-2.0 0.14-0.18 6.6-8.4 <8 Low High Low 0.28 5 4L
Haverson 4-60 0.6-2.0 0.14-0.18 7.4-8.4 <8 Low High Low 0.28
27, 28 0-60 0.06-0.6 0.12-0.17 7.9-9.0 <8 High High High 0.28 5 4
Heldt
See footnote at end of table.
•
.
130 SOIL SURVEY
TABLE 13.--PHYSICAL AND CHEMICAL PROPERTIES OF SOILS--Continued
Risk of corrosion Erosion:Wind
•
Soil name and Depth Permea- ;Available Soil Salinity Shrink- factors;erodi-
map symbol bility I water reaction swell Uncoated Concrete 'bility
;capacity potential steel K 1 T _group
In In/hr In/in 1'N Mmhos/cm
29, 30 ; 0-12 2.0-20 0.11-0.15 6.6-7.8 <2 Low Moderate Low 0.24 5 3
Julesburg ;12-27 2.0-20 0.11-0.15 6.6-7.8 <2 Low Moderate Low 0.24
127-60 >6.0 0.05-0.13 6.6-7.8 <2 Low Moderate Low 0.20
31, 32, 33, 34 I 0-12 0.6-2.0 0.16-0.18 7.9-8.4 <2 Low Moderate Low 0.32 5 4L
y Kim 12-60 0.6-2.0 0.15-0.17 7.9-8.4 <2 Low Moderate Low 0.32
/, 35•:
Loup 0-16 6.0-20 0.10-0.14 6.6-8.4 <2 Low High Low 0.17 5 2
16-60 6.0-20 0.06-0.08 7.4-8.4 <2 Low High Low 0.17
Boel 0-14 6.0-20 0.10-0.12 6.6-8.4 <2 Low High Low 0.17 5 2
14-60 6.0-20 0.05-0.07 6.6-8.4 <2 Low High Low 0.17
36*:
Midway 0-13 0.06-0.2 0.12-0.17 7.9-9.0 2-8 High High Low 0.43 1 4
13 --- --- ---
Shingle --- ---
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 -__ ___ ___
37, 38 0-9 2.0-6.0 0.13-0.15 7.9-8.4 <2 Low High Low 0.20 2 3
Nelson 9-30 2.0-6.0 0.11-0.13 7.9-8.4 <2 Low High Low 0.20
30 --- --- ---
39, --- ---
40, 41 , 42 0-9 0.2-2.0 0.15-0.20 6.6-7.8 <2 Moderate Moderate Low 0.24 5 5
y Nunn 9-29 0.06-0.6 0.15-0.18 7.4-8.4 <2 High High Low 0.28
// 29-60 0.2-2.0 0.10-0.18 7.4-8.4 <2 Moderate High Low 0.24
43 0-9 2.0-6.0 0.10-0.14 6.6-7.8 <2 Low Moderate Low 0.15 5 3
Nunn 9-29 0.06-0.6 0.15-0.18 7.4-8.4 <2 High High Low 0.28
29-60 0.2-2.0 0.10-0.18 7.4-8.4 <2 Moderate High Low 0.24
40, 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 0.24
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 0.20 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
49 0-22 6.0-20 0.05-0.08 6.6-7.3 --- Low Low Low 0.10 5 1
Osgood 22-34 2.0-6.0 0.10-0.13 6.6-7.3 --- 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
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 0.20
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 5
Renohill 9-32 0.06-0.2 0.14-0.16 6.6-8.4 <2 High High Low 0.32,
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 --- --- --- --- ---
60o:
Shingle 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 --- --- --- --- ---
• See footnote at end of table.
S $
132 SOIL SURVEY
TABLE 14.--SOIL AND WATER FEATURES
[Absence of an entry indicates the feature is not a concern. See text for descriptions of symbols and such
•
terms as "rare," "brief," and "perched." The symbol < means less than; > means greater than)
Flooding High water table Bedrock
Soil name and Hydro- 1 Potential
map symbol logic Frequency Duration Months Depth Kind Months DepthlHard- frost
group I ness action
Ft - In
1, 2 B None --- --- >6.0 --- --- >60 I --- Moderate.
Altvan
3*:
Aquolls D Frequent---- Brief Apr-Jun 0.5-1.0 Apparent Apr-Jun >60 --- High.
Aquents D Frequent---- Brief Apr-Jun 0.5-1 .0 Apparent Apr-Jun >60 I --- High.
4*:
�� Aquolls D Frequent---- Brief Apr-Jun 0.5-1.5 Apparent,Apr-Jun >60 i --- High.
Aquepts D Frequent---- Brief Apr-Jun 0.5-1.5 ApparentlApr-Jun >60 ; --- ,High.
5, 6, 7, 8, 9 B None --- --- >6.0 --- ; --- , >60 ; --- Moderate.
Ascalon
10 A Frequent---- Brief Mar-Jun >6.0 --- ; --- ; >60 --- Low.
Bankard
11 , 12 B None --- --- >6.0 --- i --- >60 i --- Moderate.
Bresser
13 A None --- --- >6.0 --- I --- >60 i --- Low.
Cascajo
14, 15, 16, 17---- B None --- >6.0 --- ; --- >60 i --- Low.
Colby
• 18*.
Colby B None --- --- >6.0 --- ' I >60 ; --- Low.
Adena C None --- --- >6.0 --- --- I >60 i --- Low.
19, 20 B Rare --- --- >6.0 --- --- ; >60 ; --- Moderate.
Colombo
21 , 22 C None --- --- >6.0 --- --- >60 --- Low.
Daconc
23, 24 B None to rare --- --- >6.0 --- --- >60 --- Low.
Fort Collins
Y- P 25, 26 B Rare to Brief May-Sep >6.0 --- --- >60 --- Low.
Haverson common.
27, 28 C None --- --- >6.0 --- --- >60 ; --- Low.
Heldt
29, 30 A None --- --- >6.0 --- --- >60 --- Moderate.
Julesburg
31 , 32, 33, 34---- B None --- --- >6.0 --- --- >60 --- Low.
27 Kim
35*:
Loup D Rare to ;Brief Mar-Jun +.5-1.5 Apparent Nov-May >60 --- Moderate.
common.
Boel A Occasional ;Brief Mar-Jun 1.5-3.5 Apparent Nov-May >60 --- Moderate.
36':
Midway D None I --- --- >6.0 --- --- 10-20 Rip- Low.
pable
. See footnote at end of table.
LD COUNTY, COLORADO, SOUTHERN PART 133
TABLE 14.--SOIL AND WATER FEATURES--Continued
c8'sr on nR i ig water table Bedrock
•Soil name and Hydro-1- 1r Potential
T
map symbol logic) Fr equenoy i Duration ;Months Depth ; Kind ;Months Depth:Hard- frost
group I : ness action
t In
36`:
Shingle D (None --- ; ___ >6.0 ___ --- 10-20 Rip- Lou.
pable
37, 38 B :None .:. ___ --- >6.0 ___ --- 20-40 Rip- Low.
Nelson I pable
: I
____,
39, 40, 41 , 42, '
43 C (None ___ : ___ >6.0 --- --- >60 --- Moderate.
Nunn
44, 45, 46, 47, I
48 B ;None ___ ___ >6.0 --- --- >60 --- Low.
Olney
49 A :None ___ ___ >6.0 ---
___ >60 --- Low.
Osgood
�.p 50, 51 , 52, 53---- 8 None ___ ___ >6.0 --- --- >60 --- Low.
Otero
54, 55 B None to rare --- --- >6.0 --- ___ >60 --- Moderate.
Paoli
56, 57 C None ___ --- >6.0 : --- --- 20-40 Rip- Low.
Renohill pable
58, 59 D None --- --- >6.0 : --- --- 10-20 Rip- Low.
Shingle , pable
60':
Shingle D None --- : --- >6.0 --- --- 10-20 Rip- Low.
: pable
•nohill C None --- I --- >6.0 --- --- 20-40 Rip- Low.
pable
61 D None -- I --- >6.0 --- --- 10-20 Rip- Low.
Tassel " I pable
62, 63 B None --- : --- , >6.0 --- --- 20-40 Rip- Low.
Terry i i pable
64, 65 C None -- i --- I >6.0 --- --- 20-40 Rip- Low.
Thedalund I i pable
.
66, 67 C None --- I --- I >6.0 --- --- >60 --- Low.
Ulm
68' A ,None --- I- --- : >6.0 --- --- >60 --- Low.
Ustic I I
Torriorthents
69, 70 A :None --- --- >6.0 --- i --- >60 --- Low.
Valent
71a: I
Valent A (None --- --- >6.0 --- --- >60 --- Low.
Loup 0 :Rare to Brief Mar-Jun +.5-1.5 Apparent Nov-May >60 --- Moderate.
: common.
:
72, 73, 74, 75,
76, 77 : B :None I --- --- >6.0 : --- --- >60 --- Low.
Vona I I
See footnote at end of table.
•
Hello