HomeMy WebLinkAbout20061494.tiff Attachment to USR Application - SW%
Great Western Oil & Gas Company, LLC
The following are the soil types found on the lands within the Subject Property. These descriptions are
taken from the Soil Survey of Weld County, Southern Part, published by the U.S.D.A.
1—Altvan loam, 0 to 1 percent slopes.This is nesting cover would enhance openland wildlife
a deep, well drained soil on terraces at populations,
elevations of 4,500 to 4,900 feet. It formed in old This Altvan soil has fair to good potential for
alluvium deposited by the major rivers, Included urban and recreational development. The chief
in mapping are small areas of soils that show limiting soil features for urban development are
evidence of poor drainage. Also included are the shrink-swell potential of the subsoil as it wets
small, long and narrow areas of sand and gravel and dries and the rapid permeability of the sand
deposits. and gravel substratum. Septic tank absorption
Typically the surface layer of the Altvan soil fields function properly, but in places the
is grayish brown loam about 10 inches thick, The substratum does not contain enough fines to
subsoil is brownand light yellowish brown clay properly filter the leachate. Sewage lagoons
loam and sandy clay loam about 15 inches thick. require sealing. Lawns, shrubs, and trees grow
The substratum is calcareous loamy sand about well. Capability subclass Its irrigated.
6 inches thick over gravelly sand. 8—Ascalon loam, 0 to 1 percent slopes.This
Permeability and available water capacity is a deep, well drained soil on terraces at
are moderate. The effective rooting depth is 20 elevations of 4,500 to 4,900 feet. It formed in
to 40 inches. Surface runoff is slow, and the alluvium deposited by the major rivers in the
erosion hazard is low. survey area. Included in mapping are small
This soil is used almost entirely for irrigated areas where sand and gravel are within a depth
crops. It is suited to all crops commonly grown in of 60 inches. Also included are small areas of
the area, including corn, sugar beets, beans, soils that have a clay loam subsoil.
alfalfa, small grain, potatoes, and onions. An Typically the surface layer of this Ascalon soil is
example of a suitable cropping system is 3 to 4 brown loam about 10 inches thick. The subsoil is
years of alfalfa followed by corn, corn for silage, brown and yellowish brown sandy clay loam about
sugar beets, small grain, or beans. The high clay 15 inches thick. The substratum to a depth 60
content and the rapidly permeable substratum inches is calcareous sandy loam.
slightly restrict some crops. Permeability is moderate. Available water
All methods of irrigation are suitable, but capacity is high. The effective rooting depth is 60
furrow irrigation is the most common. Proper inches or more. Surface runoff is slow, and the
irrigation water management is essential. erosion hazard is low.
Barnyard manure and commercial fertilizer are This soil is used almost entirely for irrigated
needed for top yields. crops. It is suited to all crops commonly grown in
Windbreaks and environmental plantings of trees the area, including corn, sugar beets, beans,
and shrubs commonly grown in the area are alfalfa, small grain, potatoes, and onions. An
generally well suited to this soil. Cultivation to example of a suitable cropping system is 9 to 4
control competing vegetation should be continued years of alfalfa followed by corn, corn for silage,
for as many years aspossible following planting. sugar beets, small grain, or beans. Few
Trees that are best suited and have good survival conservation practices are needed to maintain
are Rocky Mountain juniper, eastern redcedar, top yields.
ponderosa pine, Siberian elm, Russian-olive, and
hackberry.The shrubs best suited are skunkbush All methods of irrigation are suitable, but
sumac, lilac, Siberian peashrub, and American furrow irrigation is the most common. Barnyard
plum. manure and commercial fertilizer are needed for
This soil can produce habitat elements that top yields.
are highly suitable for openland wildlife, including Windbreaks and environmental plantings are
pheasant, cottontail, and mourning dove, Such generally well suited to this soil. Cultivation to
crops as wheat, corn, and alfalfa provide suitable control competing vegetation should be
habitat for openland wildlife, especially pheasant, continued for as many years as possible
Tree and shrub plantings and undisturbed following planting. Trees that are best suited and
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2006-1494
have good survival are Rocky Mountain juniper, All methods of irrigation are suitable, but
eastern redcedar, ponderosa pine, Siberian elm, furrow irrigation is the most common. Barnyard
Russian-olive, and hackberry. The shrubs best manure and commercial fertilizer are needed for
suited are skunkbush sumac, lilac, Siberian top yields.
peashrub, and American plum. In nonirrigated areas this soil is suited to
Wildlife is an important secondary use of this winter wheat, barley, and sorghum. Most of the
soil, The cropland areas provide favorable acreage is planted to winter wheat and is
habitat for ring-necked pheasant and mourning summer fallowed in alternate years to allow
dove, Many nongame species can be attracted moisture accumulation. Generally precipitation is
by establishing areas for nesting and escape too low for beneficial use of fertilizer.
cover. For pheasants, undisturbed nesting cover Stubble mulch farming, striperopping, and
is essential and should be included in plans for minimum tillage are needed to control soil
habitat development, especially in areas of blowing and water erosion. Terracing also may
intensive agriculture. be needed to control water erosion.
This soil has good potential for urban and The potential native vegetation is dominated
recreational development. Increased population by blue grama. Several mid grasses, such 3S
growth in the survey area has resulted in western wheatgrass and needleandthread, are
increased homesite construction. The chief also present. Potential production ranges from
limiting soil features for urban development are 1,600 pounds per acre in favorable years to
the shrink-swell potential of the subsoil as it wets 1,000 pounds in unfavorable years. As range
and dries and the limited ability of this soil to condition deteriorates, the mid grasses
support a load. Septic tank absorption fields decrease; blue grama, buffalograss, snakeweed,
function properly, but community sewage yucca, and fringed sage increase; and forage
systems should be provided if the population production drops. Undesirable weeds and
density increases. Because of the moderately annuals invade the site as range condition
rapid permeability of the substratum, sewage becomes poorer.
lagoons must be sealed. Lawns, shrubs, and Management of vegetation on this soil
trees grow well. Capability class I irrigated. should be based on taking half and leaving half
of the total annual production. Seeding is
32—Kim loam, 1 to 3 percent slopes. This is a desirable, if the range is in poor condition.
deep, well drained soil on smooth plains and Sideoats grama, little bluestem, western
alluvial fans at elevations of 4,900 to 5,250 feet. wheatgrass, blue grama, pubcactint wheatgrass,
It formed in mixed eolian deposit and parent and crested wheatgrass are suitable for seeding.
sediment from a wide variety of bedrock. The-grass selected should meet the seasonal
Included in mapping are small areas of soils that requirements of livestock. It can be seeded into
have loamy sand underlying material. a clean, firm sorghum stubble, or it can be drilled
Typically the surface layer is brown and pale into a firm prepared seedbed. Seeding early in
brown loam about 12 inches thick. The upper 28 spring has proven most successful.
inches of the underlying material is pale brown Windbreaks and environmental plantings of
loom. The lower part to a depth of 60 inches is trees and shrubs commonly grown in the area
pale brown fine sandy loam. are generally well suited to this soil Cultivation to
Permeability is moderate. Available water control competing vegetation should be
capacity is high. The effective rooting depth is 60 continued for as many years as possible
inches or more. Surface runoff is medium, and following planting. Trees that are best suited and
the erosion hazard is low. have good survival are Rocky Mountain juniper,
In irrigated areas this soil is suited to all eastern redcedar, ponderosa pine, Siberian elm,
crops commonly grown in the area, including Russian-olive, and hackberry. The shrubs best
corn, sugar beets, beans, alfalfa., small grain, suited are skunkbush sumac, lilac, Siberian
potatoes, and onions. An example of a suitable peashrub, and American plum.
cropping system is 3 to 4 years of alfalfa Wildlife is an important secondary use of this
followed by corn, corn for silage, sugar beets, soil. The cropland areas provide favorable
small grain, or beans. Land leveling, ditch lining, habitat for ring-necked pheasant arid mourning
and installing pipelines may be needed for dove. Many nongame species can be attracted
proper water applications,. by establishing areas for nesting and escape
f--
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cover. For pheasants, undisturbed nesting cover top yields.
is essential and should be included in plans for Windbreaks and environmental plantings of
habitat, development, especially in areas of trees and shrubs commonly grown in the area
intensive agriculture. Range-land wildlife, for are generally well suited to this soil. Cultivation to
example, the pronghom antelope, can be control competing vegetation should be
attracted by developing livestock watering continued for as many years as possible
facilities, managing livestock grazing, and following planting. Trees that are best suited and
reseeding where needed. have good survival are Rocky Mountain juniper,
This soil has good potential for urban and eastern redcedar, pottderosa pine, Siberian elm,
recreational development Increased population Russian-olive, and haekberry. The shrubs best
growth in the survey area has resulted in suited are skunkbuah sumac, lilac, Siberian
increased homesite construction. The chief pcashrub, and American plum.
limiting soil feature for urban development and Wildlife is an important secondary use of this
road construction is the limited capacity of this soil The cropland areas provide favorable habitat
soil to support a load. Septic tank absorption for ring-necked pheasant and mourning dove.
fields function properly, but community sewage Many nongame species can be attracted by
systems should be provided if the population establishing areas for nesting and escape cover.
density increases. Because of the permeability of For pheasants, undisturbed nesting cover is
the subatratum, sewage lagoons must bo essential and should be included in plans for
sealed. Lawns, shrubs, and trees grow well. habitat, development, especially in areas of
Capability subclass He irrigated, IVe intensive agriculture.
nonimgated; Loamy Plains range site. This soil has fair to poor potential for urban
development. It has moderate to high shrink
41—Nunn clay loam, 0 to 1 percent slopes. swell, low strength, and moderately allow
This is a deep, well drained soil on terraces and permeability. These features create problems in
smooth plains at elevations of 4,550 to 5,150 dwelling and road construction, Those areas that
feet. It formed in mixed alluvium and eolian have loam or sandy loam in the lower part of the
deposits. Included in mapping are small, long substratum are suitable for Septic tank
and narrow areas of sand and gravel deposits absorption fields foundations. Some areas of this
and small areas of soils that are subject to soil are adjacent to streams and are subject to
occasional flooding. Some small leveled areas occasional flooding. The potential is fair for such
are also included. recreational development as camp and picnic
Typically the surface layer of this Nunn soil is areas and playgrounds. Capability class I
grayish brown clay loam about 9 inches thick. irrigated.
The subsoil is light brownish gray clay loam
about 14 inches thick. The upper part of the 42—Nunn clay loam, 1 to 3 percent slopes.
substratum is clay loam. The lower part to a This is a deep, well drained soil on terraces and
depth of 60 inches is sandy loam. smooth plains at elevations of 4,550 to 5,150
Permeability is moderately slow. Available feet. It formed in mixed alluvium and eolian
water capacity is high. The effective rooting deposits. Included In mapping are small, long
depth is 60 inches or more. Surface runoff is and narrow areas of sand and gravel, deposits
slow, and the erosion hazard is low, and small arens of soils that are subject to
This soil is used almost entirely for irrigated occasional flooding, Some leveled areas are
crops. It is suited to all crops commonly grown in also included.
the area, including corn, sugar beets, beans, Typically the surface layer of this Nunn soil is
alfalfa, small grain, potatoes, and onions. An grayish brown clay loam about 9 inches thick.
example of a suitable cropping system is 3 to 4 The subsoil is light brownish gray clay loam
years of alfalfa followed by corn, com for silage, about 14 inches thick. The upper part of the
sugar bests, small grain, or beans. Few substratum is light brownish gray clay loam. The
conservation practices are needed to maintain lower part to a depth of 60 inches is brown sandy
top yields. loam.
All methods of irrigation are suitable, but Permeability is moderately slow. Available
furrow irrigation is the most common. Barnyard water capacity is high. The effective rooting
manure and commercial fertilizer are needed for depth is 60 inches or more. Surface runoff is
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medium, and the erosion hazard is low. eastern redcecdar, ponderosa pine, Siberian
In irrigated areas this soil is suited to all elm, Russian-olive, and hackberry. The shrubs
crops commonly grown in the area, including best suited are skunkbush sumac, lilac, Siberian
corn, sugar beets, beans, alfalfa, small grain, peashrub, and American plum.
potatoes, and onions. An example of a suitable Wildlife is an important secondary use of this
cropping system is 3 to 4 years of alfalfa soil The cropland areas provide favorable habitat
followed by corn, corn for silage, sugar beeta, for ring-necked pheasant and mourning dove.
small grain, or beans. Generally such Many nongame species can be attracted by
characteristics as the high clay content or the establishing areas for nesting and escape cover.
rapidly permeable substratum slightly restrict For pheasants, undisturbed nesting cover is
some crops. essential and should be included in plans for
All methods of irrigation are suitable, but habitat development, especially in areas of
furrow irrigation is the most common. Proper intensive agriculture. Range-land wildlife, for
irrigation water management is essential. example, the pronghom antelope, can be
Barnyard manure and commercial fertilizer are attracted by developing livestock watering
needed for top yields, facilities, managing livestock grazing, and
In nonirrigated areas most of the acreage is reseeding where needed.
in small grain and it is summer fallowed in This soil has fair to poor potential for urban
alternate years-Winter wheat is the principal development- It has moderate to high shrink
crop. The predicted average yield is 33 bushels swell, low strength, and moderately slow
per acre. If the crop is winterkilled, spring wheat permeability. These features create problems in
can be seeded. Generally precipitation is too low dwelling and road construction. Those areas
for beneficial use of fertilizer. that, have loam or sandy loam in the lower part
Stubble mulch farming, striperopping, and of the substratum are suitable for septic tank
minimum tillage are needed to control soil absorption fields and foundations. Some areas
blowing and water erosion. of this soil are adjacent, to streams and are
The potential native vegetation is dominated subject to occasional flooding-The potential is
by western wheatgrass and blue grama. fair for such recreational development as camp
Buffalograss is also present. Potential production and picnic areas and playgrounds. Capability
ranges from 1,000 pounds per acre in favorable subclass lie irrigated, Illc nonirrigated; Clayey
years to 600 pounds in unfavorable years. As Plains range site.
range condition deteriorates, a blue grama-buf-
falograss sod forms. Undesirable weeds and 47—Olney fine sandy loam, Ito 3 percent
annuals invade the site as range condition slopes.This is a deep, well drained soil on
becomes poorer. plains at elevations of 4,600 to 5,200 feet. It
Management of vegetation of this soil should formed in mixed outwash deposits. Included in
be based on taking half and leaving half of the mapping are small areas of soils that have a
total annual production. Range pitting can help in dark surface layer. Some small leveled areas are
reducing runoff. Seeding is desirable if the range also included.
is in poor condition. Western wheatgrass, blue Typically the surface layer of this Olney soil
grama, sideoats grama, buffalograss, pubescent is grayish brown fine sandy loam about 10
wheatgrass, and crested wheatgrass are inches thick. The subsoil is yellowish brown and
suitable for seeding. The grass selected should very pale brown sandy clay loam about 14
meet the seasonal requirements of livestock. It inches thick. The substratum to a depth of 60
can be seeded into a clean, firm sorghum inches is very pale brown, calcareous fine sandy
stubble, or it can be drilled into a firm prepared loam.
seedbed. Seeding early in spring has proven Permeability and available water capacity
moat successful. are moderate. The effective rooting depth is 60
Windbreaks and environmental plantings are inches or more- Surface runoff is medium, and
generally well suited to this soil. Cultivation to the erosion hazard is haw.
control competing vegetation should be In irrigated areas this soil is suited to all
continued for as many years as possible crops commonly grown in the area, including
following planting. Trees that are best suited and corn, sugar beets, beans, alfalfa, small grain,
have good survival are Rocky Mountain juniper, potatoes, and onions. An example of a suitable
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cropping system is 3 to 4 years of alfalfa redcedar, ponderosa pine, Siberian elm,
followed by corn, corn for silage, sugar beets, Russian-olive, and hackberry. The shrubs best
small grain, or beans. Land leveling, ditch lining, suited are skunkbush sumac, lilac, and Siberian
and installing pipelines may be needed for peashrub.
proper water application. All methods of irrigation Wildlife is an important secondary use of this
are suitable, but furrow irrigation is the most soil. The cropland areas provide favorable
common. Barnyard manure and commercial fer- habitat for ring-necked pheasant and mourning
tilizer are needed for top yields. dove. Many nongame species can be attracted
In nonirrigated areas this soil is suited to by establishing areas for nesting and escape
winter wheat, barley, and sorghum. Most of the cover. For pheasants, undisturbed nesting cover
acreage is planted to winter wheat. The is essential and should be included in plans for
predicted average yield is 28 bushels per acre. habitat development, especially in areas of
The soil is summer fallowed in alternate years to intensive agriculture. Rangeland wildlife, for
allow moisture accumulation. Generally example, the pronghorn antelope, can be
precipitation is too low for beneficial use of attracted by developing livestock watering
fertilizer. facilities, managing livestock grazing, and
Stubble mulch farming, strip-cropping, and reseeding where needed.
minimum tillage are needed to control soil Rapid expansion of Greeley and the
blowing and water erosion. Terracing also may surrounding area has resulted in urbanization of
be needed to control water erosion. much of the Olney soil. This soil has good
The potential native vegetation on this range potential for urban and recreational
site is dominated by sand bluestem, sand development. The only limiting feature is the
reedgrass, and blue grams. Needleandthread, moderately rapid permeability in the substratum,
switchgrass, sideoata grams, and western which causes a hazard of ground water
wheatgrass are alto prominent. Potential contamination from sewage lagoons. Lawns,
production ranges from 2,200 pounds per acre in shrubs, and trees grow well. Capability subclass
favor ble years to 1,800 pounds in unfavorable Ile irrigated, IVe nonirrigated; Sandy Plains range
years. As range condition deteriorates, the sand site.
bluestem, sand reedgrass, and switchgrass
decrease and blue grams, sand dropseed, and
sand sage increase. Annual weeds and grasses
invade the site as range condition becomes
poorer.
Management of vegetation on this soil
should be based on taking half and leaving half
of the total annual production. Seeding is
desirable if the range is in poor condition. Sand
bluestem, sand reedgrasa, switchgrass, sideoats
grams, blue grams, and pubescent wheatgrass
are suitable for seeding. The grass selected
should meet the seasonal requirements of
livestock. It can be seeded into a clean, firm
sorghum stubble, or it can be drilled into a firm
prepared seedbed. Seeding early in spring has
proven most successful.
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
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