HomeMy WebLinkAbout20061821.tiff USE BY SPECIAL REVIEW APPLICATION
SECTION 6
SOILS REPORT
Kerr-McGee Rocky Mountain LLC
Oil and Gas Wells
Zeek 3-23
Zeek 4-23
Zeek 5-23
Zeek 6-23
Zeek 18-23
Township 3 North, Range 68 West, 6th P.M.
Section 23: NE4NW4
Weld County, Colorado
2006-1821
24 SOIL SURVEY
Permeability is moderate. Available water capacity is land wildlife, for example, the pronghorn antelope, can be
high. The effective rooting depth is 60 inches or more. attracted by developing livestock watering facilities,
Surface runoff is medium, and the erosion hazard is managing livestock grazing, and reseeding where needed.
moderate. This soil has good potential for urban and recreational
In irrigated areas this soil is suited to crops commonly development. Increased population growth in the survey
grown in the area. Perennial grasses and alfalfa or close area has resulted in increased homesite construction. The
grown crops should be grown at least 50 percent of the chief limiting soil feature for urban development and road
time. Contour ditches and corrugations can be used in ir- construction is the limited capacity of this soil to support
rigating close grown crops and pasture. Furrows, contour a load. Septic tank absorption fields function properly, but
furrows, and cross slope furrows are suitable for row community sewage systems should be provided if the
crops. Sprinkler irrigation is also suggested. Keeping til- population density increases. Because of the permeability
lage to a minimum and utilizing crop residue help to con- of the substratum, sewage lagoons must be sealed.
trol erosion. Maintaining fertility is important. Crops Lawns, shrubs, and trees grow well. Capability subclass
respond to applications of phosphorus and nitrogen. IIIe irrigated, IVe nonirrigated; Loamy Plains range site.
In nonirrigated areas this soil is suited to winter wheat,
barley, and sorghum. Most of the acreage is planted to 34—Kim loam, 5 to 9 percent slopes. This is a deep,
winter wheat. The predicted average yield is 28 bushels well drained soil on plains and alluvial fans at elevations
per acre. The soil is summer fallowed in alternate years of 4,900 to 5,250 feet. It formed in mixed eolian deposits
to allow moisture accumulation. Generally precipitation is and parent sediment from a wide variety of bedrock. In-
too low for beneficial use of fertilizer. eluded in mapping are small areas of soils that have
Stubble mulch farming, striperopping, and minimum til- loamy sand underlying material.
lage are needed to control soil blowing and water erosion. Typically the surface layer is brown and pale brown
Terracing also may be needed to control water erosion. loam about 10 inches thick. The upper 25 inches of the un-
The potential native vegetation is dominated by blue derlying material is pale brown loam. The lower part to a
grama. Several mid grasses, such as western wheatgrass depth of 60 inches is pale brown fine sandy loam.
and needleandthread, are also present. Potential produc- Permeability is moderate. Available water capacity is
tion ranges from 1,600 pounds per acre in favorable years high. The effective rooting depth is 60 inches or more.
to 1,000 pounds in unfavorable years. As range condition Surface runoff is rapid, and the erosion hazard is
deteriorates, the mid grasses decrease; blue grama, buf- moderate.
falograss, snakeweed, yucca, and fringed sage increase; This soil is suited to limited cropping. Intensive
and forage production drops. Undesirable weeds and an- cropping is hazardous because of erosion. The cropping
nuals invade the site as range condition becomes poorer. system should be limited to such close grown crops as al-
Management of vegetation on this soil should be based falfa, wheat, and barley. This soil also is suited to ir-
on taking half and leaving half of the total annual produc- rigated pasture. A suitable cropping system is 3 to 4
tion. Seeding is desirable if the range is in poor condition. years of alfalfa followed by 2 years of corn and small
Sideoats grama, little bluestem, western wheatgrass, blue grain and alfalfa seeded with a nurse crop.
grama, pubescent wheatgrass, and crested wheatgrass are Close grown crops can be irrigated from closely spaced
suitable for seeding. The grass selected should meet the contour ditches or sprinklers. Contour furrows or sprin-
seasonal requirements of livestock. It can be seeded into klers should be used for new crops. Applications of
a clean, firm sorghum stubble, or it can be drilled into a nitrogen and phosphorus help in maintaining good produc-
firm prepared seedbed. Seeding early in spring has tion.
proven most successful. The potential native vegetation is dominated by blue
Windbreaks and environmental plantings of trees and grama. Sideoats grama, little bluestem, western wheat-
shrubs commonly grown in the area are generally well grass, and sedge are also prominent. Potential production
suited to this soil. Cultivation to control competing ranges from 1,800 pounds per acre in favorable years to
vegetation should be continued for as many years as 1,500 pounds in unfavorable years. As range condition
possible following planting. Trees that are best suited and deteriorates, the sideoats grama and little bluestem
have good survival are Rocky Mountain juniper, eastern decrease; forage production drops; and blue grama, buf-
redcedar, ponderosa pine, Siberian elm, Russian-olive, and falograss, and several perennial forbs and shrubs in-
hackberry. The shrubs best suited are skunkbush sumac, crease. Undesirable weeds and annuals invade the site as
lilac, Siberian peashrub, and American plum. range condition becomes poorer.
Wildlife is an important secondary use of this soil. The Management of vegetation should be based on taking
cropland areas provide favorable habitat for ring-necked half and leaving half of the total annual production. Seed-
pheasant and mourning dove. Many nongame species can ing is desirable if the range is in poor condition. Sideoats
be attracted by establishing areas for nesting and escape grama, little bluestem, western wheatgrass, and pu-
cover. For pheasants, undisturbed nesting cover is essen- bescent wheatgrass are suitable for seeding. The grass
tial and should be included in plans for habitat develop- selected should meet the seasonal needs of livestock. It
ment, especially in areas of intensive agriculture. Range- can be seeded into a clean, firm sorghum stubble, or it
v,ETD COUNTY, COLORADO, SOUTHERN PART 25
can be drilled into a firm prepared seedbed. Plowing and Permeabilty is rapid. Available water capacity is
frilling on the contour minimize runoff and soil losses. moderate. The water table is usually about 24 to 36 inches
eding early in spring has proven most successful. below the surface. Surface runoff is slow, and the erosion
Windbreaks and environmental plantings are generally hazard is low.
well suited to this soil. Cultivation to control competing This unit is used as rangeland and irrigated cropland.
vegetation should be continued for as many years as Cropping in irrigated areas is limited to the crops
possible following planting. Trees that are best suited and tolerant of water and salts. Light, frequent irrigations by
have good survival are Rocky Mountain juniper, eastern furrows and flooding reduce the salts accumulation.
redcedar, ponderosa pine, Siberian elm, Russian-olive, and Pasture is the best use. Tall wheatgrass, tall fescue, and
hackberry. The shrubs best suited are skunkbush sumac, annual sweetclover are some of the best suited crops.
lilac, Siberian peashrub, and American plum. Commercial fertilizers improve the amount and value of
Wildlife is an important secondary use of this soil. The forage produced.
cropland areas provide favorable habitat for ring-necked The potential native vegetation on this unit is
pheasant and mourning dove. Many nongame species can dominated by switchgrass, little bluestem, sand reedgrass,
be attracted by establishing areas for nesting and escape and western wheatgrass. Indiangrass, sand bluestem,
cover. For pheasants, undisturbed nesting cover is essen- prairie cordgrass, slender wheatgrass, alkali sacaton, salt-
tial and should be included in plans for habitat develop- grass, sedge, and rush are also present. Potential produc-
ment, especially in areas of intensive agriculture. Range- tion ranges from 4,000 pounds per acre in favorable years
land wildlife, for example, the pronghorn antelope, can be to 3,000 pounds in unfavorable years. As range condition
attracted by developing livestock watering facilities, deteriorates, the switchgrass, sand bluestem, indiangrass,
managing livestock grazing, and reseeding where needed. little bluestem, and prairie cordgrass decrease and salt-
This soil has good potential for urban and recreational grass, blue grama, sand dropseed, sedge, and rush in-
development. Increased population growth in the survey crease. Undesirable weeds and annuals invade the site as
area has resulted in increased homesite construction. The range condition becomes poorer.
chief limiting soil feature for urban development and road Management of vegetation on this unit should be based
construction is the limited capacity of this soil to support on taking half and leaving half of the total annual produc-
a load. Septic tank absorption fields function properly, but tion. Seeding is desirable if the range is in poor condition.
community sewage systems should be provided if the Switchgrass, sand bluestem, sand reedgrass, western
,Epulation density increases. Because of the permeability wheatgrass, indiangrass, pubescent wheatgrass, and inter-
the substratum, sewage lagoons must be sealed. mediate wheatgrass are suitable for seeding. The plants
_awns, shrubs, and trees grow well. Capability subclass selected should meet the seasonal requirements of
IVe irrigated, We nonirrigated; Loamy Plains range site. livestock. They can be seeded into a clean, firm sorghum
35—Loup-Boel loamy sands, 0 to 3 percent slopes. stubble, or they can be drilled into a firm prepared
This level to nearly level map unit is on stream bottoms seedbed. Seeding early in spring has proven most success-
and in drainageways of the sandhills at elevations of 4,550 ful. Capability subclass IVw irrigated, VIw nonirriated;
to 4,750 feet. The Loup soil occupies the lower or depres- Sandy Meadow range site.
sional areas, which receive additional runoff. It makes up 36—Midway-Shingle complex, 5 to 20 percent slopes.
about 55 percent of the unit. The Boel soil occupies the This moderately sloping to strongly sloping map unit is on
slightly higher elevations. It makes up about 35 percent upland hills and ridges at elevations of 5,050 to 5,250 feet.
of the unit. About 10 percent of the unit is Osgood sand The Midway soil makes up about 50 percent of the unit,
and Valent sand. and the Shingle soil about 35 percent. About 15 percent is
The Loup soil is deep and poorly drained. It formed in Renohill clay loam and Tassel fine sandy loam. The Mid-
sandy alluvium. Typically the surface layer is very dark way soil differs from the Shingle soil in having more than
grayish brown, mottled loamy sand about 16 inches thick. 35 percent clay in the underlying material.
The upper 24 inches of the underlying material is light The Midway soil is shallow and well drained. It formed
brownish gray, mottled loamy sand. The lower part to a in residuum from calcareous shale. Typically the surface
depth of 60 inches is light brownish gray, mottled sandy layer is light olive brown clay about 7 inches thick. The
loam. underlying material is light brownish gray clay about 6
Permeability is rapid. Available water capacity is inches thick. Depth to calcareous clayey shale is about 13
moderate. The water table is at or near the surface in inches.
spring and about 36 inches below the surface in the fall. Permeability is slow. Available water capaity is low.
Surface runoff is slow, and the erosion hazard is low. The effective rooting depth is 10 to 20 inches. Surface ru-
The Boel soil is deep and somewhat poorly drained. It noff is rapid, and the erosion hazard is moderate to high.
formed in stratified sandy alluvium. Typically the surface The Shingle soil also is shallow and well drained and
layer is grayish brown loamy sand about 14 inches thick. formed in residuum from calcareous shale. Typically the
The underlying material to a depth of 60 inches is pale surface layer is grayish brown loam about 6 inches thick.
J^"c,wn and very pale brown, stratified, mottled loamy The underlying material is light yellowish brown clay
j• loam about 12 inches thick. Depth to calcareous clayey
T OF AGRICULTURE
SHEET NO. 21
'ATION SERVICE
WELD COUNTY,COLORADO, SOUTHERN PART
/ (GOWANDA QUADRANGLE) 104`5230
I 2150 aao,e R.68 W. I R.67 W.
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` ' —,a -"61 '.)°r SOIL REPORT
/ Kerr-McGee Rocky Mountain LLC
4111 ,
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42 9 Application for Use By Special Review
', j ; '°`' i Zeek Oil and Gas Wells
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ig 53 T3N-R68W 23-NE/4N W,/4
16 I Weld County, Colorado
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