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USE SPECIAL REVIEW
W12 SW/4,SECTION 26,T3N,R65W
WELD COUNTY,COLORADO
SOIL TYPE(SCS,19130)
69
VAUNT SAND,0.3 PERCENT SLOPES,
69 DEEP AND EXCESSIVELY DRAINED,
�yd BROWN SAND
70 f VALENT SAND,3-0 PERCENT SLOPES,
70 DEEP AND EXCESSIVELY DRAINED,
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BROWN SAND
REFERENCE:CRABS,JAMES A,1980
. SOIL SURVEY OF WELD COUNTY,COLO.
SOUTHERN PART;USDA SOS
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SEC.26 PLAT 4CAt F.
8800 WEST 20TH STREET II t
• PARCEL PROPOSED FOR CONTOUR INTERVAL 2' GREELEY,COLORADO SOW USE BY SPECIAL REVIEW OM 330.3473
WQ SW/4,SECTION 28.T3N.R6SW
2004-0510
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NOTE: THIS IS A W/2 SW 4YSECTI0N 2s T3N Taw
, PAGE 1 OF 2
FACSIMILE OF THE WELD COUNTY, COLORADO
24"x36" PLAT WHICH
20 SOIL TYPE (SCS, 1980)
IS BEING DRAFTED FOR 69 VALENT SAND,0-3 PERCENT
FORMAL SUBMITTAL AT SLOPES,DEEP AND
EXCESSIVELY DRAINED,
A LATER DATE. BROWN SAND
70 VALENT SAND,3-9 PERCENT
SLOPES,DEEP AND
EXCESSIVELY DRAINED
BROWN SAND
70 2 REFERENCE:CRABS,JAMES A,1 800
SOIL SURVEY OF WELD COUNTY,COLO.
6 SOUTHERN PART;USDA SCS
4
0
4830 F VICINITY MAP• 36 INCHES
E SEE SECOND PAGE FOR
1 .
� DETAILS
TER U T
69
GAS NE PROPOSED COMPOST
FARM
PARCEL PROPOSED FOR I i
THE USE BY SPECIAL REVIEW '••-----.-.: ._....-._................ JOHN MOSER
W/4,SW/4,SEC.13 • 1, FEET 6600 WEST 20TH STREET#11
•• ••
••Y•••••^ ••••• GREELEY,COLORADO 9 634
PLAT SCALE:1'=100' $W Cof'�, 4•^• • . (970)330-3474
CONTOUR INTERVAL:2' - r
GRAP-IC SCALE N FEET
24 INCHES
JOHN MOSER USR APPLICATION
STORM WATER CONTAINMENT SYSTEM PLAT
W/2 SW/4, SECTION 26, T3N, R65W, 6TH P.M.
WELD COUNTY COLORADO
(NOT TO SCALE)
EXISTING PRIVATE ROAD NORTH
SOIL BERM WALL DESIGN
STORM
WATER RETENTION SIDE VIEW
AREA
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BERM WALL 45 DEGREES 6 FEET -C>-
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SURFACE OW TOP VIEW
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SIDE WALLS
W/2 SW/4 \ !�
SECTION 26
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SW SEC. COR.
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IRRIGATED AGRICULTURE LAND i . CANAL
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SECTION 27 SECTION 26
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i' JOHN MOSER
WES MOSER&
SONS [ I DRYLAND PASTURE
SWAM ACCESS ROAD
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!GATED AGRICULTURE a4, 1
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WES MOSER& CHARLES FOSTER
SONS ;
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NE/4 NW/4 ; DRYLAND
SECTION 34 SECTION 3d PASTURE
PARCEL PROPOSED FOR PLAT SCALE:T •=T,DOO' VICINITY MAP
USE BY SPECIAL REVIEW
N/2 SWl4 SECTION 2e,TYN,Re5W WELD COUNTY, COLORADO
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44 SOIL SURVEY
to allow moisture accumulation. Generally precipitation is Permeability is rapid. Available water capacity is low.
^
too low to make beneficial use of fertilizer. The effective rooting depth is 60 inches or more. Surface
Stubble mulch farming, striperopping, and minimum til- runoff is medium, and the erosion hazard is moderate.
lage are needed to control soil blowing and water erosion. The potential native vegetation is dominated by little
Terracing also may be needed to control water erosion. bluestem, sideoats grams, sand reedgrass, blue grama,
The potential native vegetation is dominated by hairy grama, awitehgrass, and needleandthread. Potential
western wheatgrass and blue grama. Buffalograss is also production ranges from 700 pounds per acre in favorable "'
present. Potential production ranges from 1,000 pounds years to 200 pounds in unfavorable years. As range condi-
per acre in favorable years to 600 pounds in unfavorable tion deteriorates, the tall and mid grasses decrease, blue '
years. As range condition deteriorates, a blue grama-buf- grams and hairy grama increase, and forage production ,
falograss sod forms. Undesirable weeds and annuals in- drops.
vade the site as range condition becomes poorer. Management of vegetation should be based on taking
Management of vegetation on this soil should be based half or less of the total annual production. Deferred graz-
on taking half and leaving half of the total annual produc- ing is practical in improving range condition. Seeding and
tion. Range pitting can reduce runoff. Seeding is desirable mechanical treatment are impractical.
if the range is in poor condition. Western wheatgrass, Windbreaks and environmental plantings generally are 1
blue grama, sideoats grams, buffalograss, pubescent not suited to these soils. Onsite investigation is needed to
determine if plantings are feasible.
wheatgrass, and crested wheatgrass are suitable for seed- Wildlife populations are limited because the necessary 4
ing. The grass selected should meet the seasonal require- s
ments of livestock. It can be seeded into a clean, firm habitat elements are lacking. Because most of the acreage
is
sorghum stubble, or it can be drilled into a firm prepared rangeland, only rangeland wildlife, for example scaled
seedbed. 4uail and antelope, are typical. Extreme care is needed in
Seeding early in spring has proven most success-
fill. managing livestock grazing in order to provide suitable
Windbreaks and environmental plantings of trees and s1
habitat on these soils.
Potential is poor for urban and recreational develop
shrubs commonly grown in the area are generally well ment. The chief limiting soil features are the loose, coarse
suited to this soil. Cultivation to control competing textured soil, steep slopes, and rapid permeability. Caps-
vegetation should be continued for as many years as bility subclass Vila irrigated, VIIs nonirrigated; Gravel ;iJ
possible following planting. Trees that are best suited and
Breaks range site. rl
'eaN have good survival are Rocky Mountain juniper, eastern
69—Valent sand, 0 to 3 percent slopes. This is a deep, t,"
redcedar, ponderosa pine, Siberian elm, Russian-olive, and excessively drained soil on plains at elevations of 4,650 to €?
hackberry. The shrubs best suited are skunkbush sumac, 5,100 feet. It formed in eolian deposits. Included m
lilac, Siberian peashrub, and American plum. mapping are small areas of soils that have lime within a
Wildlife is an important secondary use of this soil. The depth of 40 inches.
cropland areas provide favorable habitat for ring-necked Typically the surface layer is brown sand about 8
pheasant and mourning dove. Many nongame species can inches thick. The underlying material to a depth of 60 `'
be attracted by establishing areas for nesting and escape inches is brown sand.
cover. For pheasants, undisturbed nesting cover is essen- Permeability is rapid. Available water capacity is
tial and should be included in plans for habitat develop- moderate. The effective rooting depth is 60 inches or
ment, especially in areas of intensive agriculture. Range- more. Surface runoff is slow, and the erosion hazard is
land wildlife, for example, the pronghorn antelope, can be low.
attracted by developing livestock watering facilities, This soil is suited to limited cropping. Intensive
managing livestock grazing, and reseeding where needed. cropping is hazardous because of erosion. The cropping
This soil has poor potential for urban and recreational system should be limited to such close grown crops as al-
development. Slow permeability and high shrink swell falfa, wheat, and barley. The soil also is suited to ir-
cause problems in dwelling and road construction. Caps- rigated pasture. A suitable cropping system is 3 to 4
bility subclass IIIe irrigated, IVe nonirrigated; Clayey years of alfalfa followed by 2 years of corn and small
Plains range site. grain and alfalfa seeded with a nurse crop.
68—Ustic Torriorthents, moderately steep. These are Closely spaced contour ditches or sprinkers can be used
deep, excessively drained soils on terrace breaks and in irrigating close grown crops. Contour furrows or sprin-
escarpments at elevations of 4,450 to 5,100 feet. They klers should be used for new crops. Applications of bar-
formed in gravelly alluvium and have slopes of 9 to 25 nyard manure and commercial fertilizer help to maintain
percent. Included in mapping are small areas of soils that good production.
have pockets of sandy loam and loam in the underlying The potential vegetation is dominated by sand
material. bluestem, sand reedgrass, switchgrass, sideoats grama,
n Typically the surface layer is pale brown gravelly sand needleandthread, little bluestem, and blue grama. Poten-
about 10 inches thick. The underlying material to a depth tial production ranges from 2,500 pounds per acre in
of 60 inches is pale brown gravelly sand. favorable years to 1,800 pounds in unfavorable years. As
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WELD COUNTY, COLORADO, SOUTHERN PART 45
range condition deteriorates, the sand bluestem, The potential vegetation is dominated by sand
rgitchgrass, sand reedgrass, sideoats grams, and little bluestem, sand reedgrass, switchgrass, sideoats grama,
estem decrease, forage production drops, and sand needleandthread, little bluestem, and blue grama. Poten-
sage increases. Undesirable weeds and annuals invade tial production ranges from 2,500 pounds per acre in
and "blowout" conditions can occur as range condition favorable years to 1,800 pounds in unfavorable years. As
becomes poorer. range condition deteriorates, the sand bluestem,
Management of vegetation on this soil should be based switchgrass, sand reedgrass, sideoats grams, and little
on taking half and leaving half of the total annual produc- bluestem decrease, forage production drops, and sand
tion. Seeding is desirable if the range is in poor condition. sage increases. Undesirable weeds and annuals invade
Sand bluestem, sand reedgrass, indiangrass, switchgrass, and "blowout" conditions can occur as range condition
sideoats grama, little bluestem, and blue grama are suits- becomes poorer.
ble for seeding. Because this soil is susceptible to soil Management of vegetation on this soil should be based
blowing, it should be seeded using an interseeder, or the on taking half and leaving half of the total annual produc-
seed should be drilled into a firm, clean sorghum stubble. tion. Seeding is desirable if the range is in poor condition.
Seeding early in spring has proven most successful. Brush Sand bluestem, sand reedgrass, indiangrass, switchgrass,
management also can help in improving deteriorated side-oats grams, little bluestem, and blue grama are suita-
range. ble for seeding. Because this soil is susceptible to soil
Windbreaks and environmental plantings are fairly well blowing, it should be seeded using an interseeder or the
suited to this soil. Blowing sand and the moderate avails- seed should be drilled into a firm, clean sorghum stubble.
ble water capacity are the principal hazards in establish- Seeding early in spring has proven most successful. Brush
ing trees and shrubs. The soil is so loose that trees should management can also help in improving deteriorated
be planted in shallow furrows, maintaining vegetation range.
between the rows. Supplemental irrigation is needed to Windbreaks and environmental plantings are generally
insure survival. Trees that are best suited and have good not suited to this soil. Onsite investigation is needed to
survival are Rocky Mountain juniper, eastern redcedar, determine if plantings are feasible.
ponderosa pine, and Siberian elm. The shrubs best suited Wildlife is an important secondary use of this soil. Ran-
are skunkbush sumac, lilac, and Siberian peashrub. geland wildlife, for example, the pronghorn antelope, can
Wildlife is an important secondary use of this soil. The be attracted by developing livestock watering facilities,
cropland areas provide favorable habitat for ring-necked managing livestock grazing, and reseeding where needed.
rTheasant and mourning dove. Many nongame species can This soil has fair potential for urban development. The
e attracted by establishing areas for nesting and escape chief limiting soil features are the rapid permeability and
cover. For pheasants, undisturbed nesting cover is essen- the susceptibility to soil blowing. Septic tank absorption
tial and should be included in plans for habitat develop- fields function properly, but in places the sandy sub-
ment, especially in areas of intensive agriculture. Range- stratum does not properly filter the leachate. Sewage
land wildlife, for example, the pronghorn antelope, can be lagoons must be sealed. Once established, lawns, shrubs,
attracted by developing livestock watering facilities, and trees grow well. Capability subclass VIe irrigated,
managing livestock grazing, and reseeding where needed. VIe nonirrigated; Deep Sand range site.
This soil has fair potential for urban development. The 71—Valent-Loup complex, 0 to 9 percent slopes. This
primary limiting soil features are the rapid permeability level to moderately sloping map unit occupies hills, ridges,
and the susceptibility to soil blowing. Septic tank absorp- and depression or pothole-like areas in the sandhills at
tion fields function properly, but in places the sandy sub- elevations of 4,670 to 4,700 feet. The Valent soil makes up
stratum does not properly filter the leachate. Sewage about 60 percent of the unit, the Loup soil about 35 per-
lagoons must be sealed. Once established, the lawns, cent. About 5 percent is dune sand. The Valent soil occu-
shrubs, and trees grow well. Capability subclass IVe ir- pies the hills and ridges and the Loup soil the depressions
rigated, VIe nonirrigated; Deep Sand range site. or potholes.
70—Valent sand, 3 to 9 percent slopes. This is a deep, The Valent soil is deep and excessively drained. It
excessively drained soil on plains at elevations of 4,650 to formed in eolian deposits. Typically the surface layer is
5,100 feet. It formed in eolian deposits. Included in brown sand about 8 inches thick. The underlying material
mapping are small areas of soils that have lime within a to a depth of 60 inches is brown sand.
depth of 40 inches. Also included are small areas of soils Permeability is rapid. Available water capacity is
that have sandstone between 40 and 60 inches. moderate. The effective rooting depth is 60 inches or
Typically the surface layer of the Valent soil is brown more. Surface runoff is slow, and the erosion hazard is
sand about 6 inches thick. The underlying material to a low.
depth of 60 inches is brown sand. The Loup soil is deep and poorly drained. It formed in
Permeability is rapid. Available water capacity is sandy alluvium. Typically the surface layer is very dark
moderate. The effective rooting depth is 60 inches or grayish brown, mottled loamy sand about 16 inches thick.
more. Surface runoff is slow, and the erosion hazard is The underlying material to a depth of 60 inches is light
mow. brownish gray, mottled loamy sand and sandy loam.
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® NATIONAL FLOOD INSURANCE PROGRAM
FIRM
FLOOD INSURANCE RATE MAP
WELD
COUNTY,
COLORADO
UNINCORPORATED AREA
PANEL 900 OF 1075
(SEE MAP INDEX FOR PANELS NOT PRINTED'
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COMMUNITY-PANEL NUMBER
080266 0900 C
MAP REVISED:
SEPTEMBER 28, 1982
federal emergency management agency
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