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Small Commercial Buildings—Weld County, Colorado, Southern Part
Small Commercial Buildings
Small Commercial Buildings— Summary by Map Unit — Weld County, Colorado, Southern Part (CO618)
Map unit Map unit name Rating Component name Rating reasons Acres in Percent o1 AOI
symbol (percent) (numeric values) AOI
47 Olney fine sandy Not limited Olney (85%) 5.1 23.8%
loam, 1 to 3
percent slopes
51 Otero sandy Not limited Otero 85%( 76.2%
( ) 16.5
loam, 1 to 3
percent slopes
Totals for Area of Interest 21.6 100.0%
Small Commercial Buildings— Summary by Rating Value
Rating Acres In AOl Percent of AOI
Not limited 21.6 100.0%
Totals for Area of Interest 21.$ 100.0%
USDA Natural Resources Web Soil Survey 7/6/2012
S Conservation Service National Cooperative Soil Survey Page 3 of 4
•
Small Commercial Buildings--Weld County, Colorado, Southern Part
Description
Small commercial buildings are structures that are less than three stories high and
do not have basements. The foundation is assumed to consist of spread footings
of reinforced concrete built on undisturbed sod at a depth of 2 feet or at the depth
of maximum frost penetration, whichever is deeper. The ratings are based on the
soil properties that affect the capacity of the soil to support a bad without movement
and on the properties that affect excavation and construction costs. The properties
that affect the load-supporting capacity include depth to a water table, ponding,
flooding, subsidence, linear extensibility (shrink-swell potential), and
compressibility (which is inferred from the Unified classification of the soil). The
properties that affect the ease and amount of excavation include flooding, depth to
a water table, ponding, slope, depth to bedrock or a cemented pan, hardness of
bedrock or a cemented pan, and the amount and size of rock fragments.
The ratings are both verbal and numerical. Rating class terms indicate the extent
to which the soils are limed by all of the soil features that affect the specified use.
"Not limited" indicates that the soil has features that are very favorable for the
specified use. Good performance and very low maintenance can be expected.
"Somewhat limited" indicates that the soil has features that are moderately
favorable for the specified use. The limitations can be overcome or minimized by
special planning, design, or installation. Fair performance and moderate
maintenance can be expected. "Very limited" indicates that the soil has one or more
features that are unfavorable for the specified use. The limitations generally cannot
be overcome without major soil reclamation, special design, or expensive
installation procedures. Poor performance and high maintenance can be expected.
Numerical ratings indicate the severity of individual limitations. The ratings are
shown as decimal fractions ranging from 0.01 to 1 .00. They indicate gradations
between the point at which a soil feature has the greatest negative impact on the
use (1 .00) and the point at which the soil feature is not a limitation (0.00).
The map unit components listed for each map unit in the accompanying Summary
by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer
are determined by the aggregation method chosen. An aggregated rating class is
shown for each map unit. The components listed for each map unit are only those
that have the same rating class as listed for the map unit. The percent composition
of each component in a particular map unit is presented to help the user better
understand the percentage of each map unit that has the rating presented.
Other components with different ratings may be present in each map unit. The
ratings for all components, regardless of the map unit aggregated rating, can be
viewed by generating the equivalent report from the Soil Reports tab in Web Soil
Survey or from the Soil Data Mart site. Onsite investigation may be needed to
validate these interpretations and to confirm the identity of the soil on a given site.
Rating Options
Aggregation Method: Dominant Condition
Component Percent Cutoff: None Specified
Tie-break Rule: Higher
USDA aiS Natural Resources Web Soil Survey 7/6/2012
Conservation Service National Cooperative Soil Survey Page 4 of 4
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Corrosion of Concrete—Weld County, Colorado, Southern Part
MAP LEGEND MAP INFORMATION
Area of Interest (AO1) Map Scale: 1:2,170 if printed on A size (8.5" x 11 ') sheet,
[_i Area of Interest (AOl) The soil surveys that comprise your AOl were mapped at 1 :24,000.
Soils
Soil Map Units Warning: Soil Map may not be valid at this scale.
Soil Ratings Enlargement of maps beyond the scale of mapping can cause
'E j High misunderstanding of the detail of mapping and accuracy of soil line
placement. The maps do not show the small areas of contrasting
® Moderate soils that could have been shown at a more detailed scale.
Low
Please rely on the bar scale on each map sheet for accurate map
Not rated or not available measurements.
Political Features Source of Map: Natural Resources Conservation Service
Cities Web Soil Survey URL: http://websollsurvey.nres.usda.gov
Water Features Coordinate System: UTM Zone 13N NAD83
Streams and Canals This product is generated from the USDA-NRCS certified data as of
the version date(s) listed below.
Transportation
Rails Soil Survey Area: Weld County, Colorado, Southern Part
Survey Area Data: Version 11 , Aug 27, 2009
,As Interstate Highways
US Routes Date(s) aerial images were photographed: 6/22/2005
�, The orthophoto or other base map on which the soil lines were
.�e Major Roads compiled and digitized probably differs from the background
Local Roads imagery displayed on these maps. As a result, some minor shifting
of map unit boundaries may be evident.
;rte Natural Resources Web Soil Survey 7/6/2012
Conservation Service National Cooperative Soil Survey Page 2 of 3
i
Corrosion of Concrete—Weld County, Colorado, Southern Part
Corrosion of Concrete
Corrosion of Concrete— Summary by Map Unit — Weld County, Colorado, Southern Part (CO618)
Map unit symbol Map unit name Rating Acres in AOI Percent of AOI
47 Olney fine sandy loam, 1 to Low 5.1 23.8%
3 percent slopes
51 Otero sandy loam, 1 to 3 Low 16.5 76.2%
percent slopes
Totals for Area of Interest 21.6 , 100.00/;1
Description
"Risk of corrosion" pertains to potential soil-induced electrochemical or chemical
action that corrodes or weakens concrete. The rate of corrosion of concrete is based
mainly on the sulfate and sodium content, texture, moisture content, and acidity of
the soil. Special site examination and design may be needed if the combination of
factors results in a severe hazard of corrosion . The concrete in installations that
intersect soil boundaries or soil layers is more susceptible to corrosion than the
concrete in installations that are entirely within one kind of soil or within one soil
layer.
The risk of corrosion is expressed as "low," "moderate," or "high."
Rating Options
Aggregation Method: Dominant Condition
Component Percent Cutoff. None Specified
Tie-break Rule: Higher
USDA Natural Resources Web Soil Survey 7/6/2012
'CES Conservation Service National Cooperative Soil Survey Page 3 of 3
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Corrosion of Steel-Weld County, Colorado, Southern Part
Corrosion of Steel
:Corrosl o18t04 Summary by sap Un t-tam'County: Cb"ionbbS ,8o n Pit(C to.
Nip`.tHift syatbol Map strut sumo Acres in A01 ant oti
47 Olney tie sandy barn, 1 to High 5.1 23.8%
3 percent slopes
51 Otero sandy loam, 1 to 3 High 16.5 76.2%
percent slopes
Totals for Ana of tntsrsst 21.6 100.0%
Description
"Risk of corrosion" pertains to potential soil-induced electrochemical or chemical
action that corrodes or weakens uncoated steel. The rate of corrosion of uncoated
steel is related to such factors as soil moisture, particle-size distribution, acidity,
and electrical conductivity of the soil. Special site examination and design may be
needed if the combination of factors results in a severe hazard of corrosion. The
steel in installations that intersect soil boundaries or soil layers is more susceptible
to corrosion than the steel in installations that are entirely within one kind of soil or
within one soil layer.
The risk of corrosion is expressed as "low," "moderate," or "high."
Rating Options
Aggregation Method: Dominant Condition
Component Percent Cutoff: None Specified
Tie-break Rule: Higher
USDA Natural Resources Web Soil Survey 7/6/2012
Conservation Service National Cooperative Soil Survey Page 3 of 3
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Local Roads and Streets—Weld County, Colorado, Southern Part
Local Roads and Streets
Local Roads and Streets— Summary by Map Unit — Weld County, Colorado, Southern Part (CO618)
Map unit Map unit name Rating Component name Rating reasons Acres In Percent of AO1
symbol (percent) (numeric values) AOl
47 Olney fine sandy Not limited Olney (85%) 5.1 23.8%
loam, 1 to 3
percent slopes
51 Otero sandy Not limited Otero (85%) 16.5 76.2%
loam, 1 to 3
percent slopes
Totals for Ara of Interest 21.6 100.0%
Local Roads and Streets— Summary by Rating Value
Rating Acres in AOI Percent of AOI
Not limited 21.6 100.0%
Totals for Area of Interest 21.6 100.0%
USDA Natural Resources Web Soil Survey 7/6/2012
Conservation Service National Cooperative Soil Survey
Page 3 of 4
Local Roads and Streets—Weld County, Colorado, Southern Part
Description
Local roads and streets have an all-weather surface and carry automobile and light
truck traffic all year. They have a subgrade of cut or fill soil material; a base of gravel,
crushed rock, or soil material stabilized by lime or cement; and a surface of flexible
material (asphalt), rigid material (concrete), or gravel with a binder. The ratings are
based on the soil properties that affect the ease of excavation and grading and the
traffic-supporting capacity. The properties that affect the ease of excavation and
grading are depth to bedrock or a cemented pan, hardness of bedrock or a
cemented pan, depth to a water table, ponding, flooding, the amount of large
stones, and slope. The properties that affect the traffic-supporting capacity are soil
strength (as inferred from the AASHTO group index number), subsidence, linear
extensibility (shrink-swell potential), the potential for frost action, depth to a water
table, and ponding.
The ratings are both verbal and numerical. Rating class terms indicate the extent
to which the soils are limited by all of the soil features that affect the specified use.
"Not limited" indicates that the soil has features that are very favorable for the
specified use. Good performance and very low maintenance can be expected.
"Somewhat limited" indicates that the soil has features that are moderately
favorable for the specified use. The limitations can be overcome or minimized by
special planning, design, or installation. Fair performance and moderate
maintenance can be expected. "Very limited" indicates that the soil has one or more
features that are unfavorable for the specified use. The limitations generally cannot
be overcome without major soil reclamation, special design, or expensive
installation procedures. Poor performance and high maintenance can be expected.
Numerical ratings indicate the severity of individual limitations. The ratings are
shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations
between the point at which a soil feature has the greatest negative impact on the
use (1.00) and the point at which the soil feature is not a limitation (0.00).
The map unit components listed for each map unit in the accompanying Summary
by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer
are determined by the aggregation method chosen. An aggregated rating class is
shown for each map unit. The components listed for each map unit are only those
that have the same rating class as listed for the map unit. The percent composition
of each component in a particular map unit is presented to help the user better
understand the percentage of each map unit that has the rating presented.
Other components with different ratings may be present in each map unit. The
ratings for all components, regardless of the map unit aggregated rating, can be
viewed by generating the equivalent report from the Soil Reports tab in Web Soil
Survey or from the Soil Data Mart site. Onsite investigation may be needed to
validate these interpretations and to confirm the identity of the soil on a given site.
Rating Options
Aggregation Method: Dominant Condition
Component Percent Cutoff: None Specified
Tie-break Rule: Higher
USDA Natural Resources Web Soil Survey 7/6/2012
Conservation Service National Cooperative Soil Survey Page 4 of 4
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Septic Tank Absorption Fields—Weld County, Colorado, Southern Part
Septic Tank Absorption Fields
Septic Tank Absorption Fields— Summary by Map Unit — Weld County, Colorado, Southern Part (CO618)
Map unit Map unit name Rating Component name Rating reasons Acres in Percent of AOI
symbol (percent) (numeric values) AOI
47 Olney fine sandy Somewhat limited ' Olney (85%) I Slow water I 5.1 23.8%
loam, 1 to 3 movement (0.50)
percent slopes
51 Otero sandy Not limited Otero (85%) 16.5 76.2%
loam, 1 to 3
percent slopes
Totals for Area of Interest 21.1 100.0%
Septic Tank Absorption Fields— Summary by Rating Value
Rating Acres in AOl Percent of AOI
Not limited 16.5 76.2%
Somewhat limited 5.1 23.8%
Totals for Area of Interest 21.1 100.0%
USDA Natural Resources Web Soil Survey 7/6/2012
Conservation Service National Cooperative Soil Survey Page 3 of 5
0
Septic Tara Absorption Fields--Weld County, Colorado, Southern Part
Description
Septic tank absorption fields are areas in which effluent from a septic tank is
distributed into the soil through subsurface tiles or perforated pipe. Only that part
of the soil between depths of 24 and 60 inches is evaluated. The ratings are based
on the soil properties that affect absorption of the effluent, construction and
maintenance of the system, and public health. Saturated hydraulic conductivity
(Ksat), depth to a water table, ponding, depth to bedrock or a cemented pan, and
flooding affect absorption of the effluent. Stones and boulders, ice, and bedrock or
a cemented pan interfere with installation. Subsidence interferes with installation
and maintenance. Excessive slope may cause lateral seepage and surfacing of the
effluent in downslope areas.
Some soils are underlain by loose sand and gravel or fractured bedrock at a depth
of less than 4 feet below the distribution lines. In these soils the absorption field
may not adequately filter the effluent, particularly when the system is new. As a
result, the ground water may become contaminated.
The ratings are both verbal and numerical. Rating class terms indicate the extent
to which The soils are limited by all of the soil features that affect the specified use.
"Not limited" indicates that the soil has features that are very favorable for the
specified use. Good performance and very low maintenance can be expected.
"Somewhat limited" indicates that the soil has features that are moderately
favorable for the specified use. The limitations can be overcome or minimized by
special planning, design, or installation. Fair performance and moderate
maintenance can be expected. ' Very limited" indicates that the soil has one or more
features that are unfavorable for the specified use. The limitations generally cannot
be overcome without major soil reclamation, special design, or expensive
installation procedures. Poor performance and high maintenance can be expected.
Numerical ratings indicate the severity of individual limitations. The ratings are
shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations
between the point at which a soil feature has the greatest negative impact on the
use (1 .00) and the point at which the soil feature is not a limitation (0.00).
The map unit components listed for each map unit in the accompanying Summary
by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer
are determined by the aggregation method chosen. An aggregated rating class is
shown for each map unit. The components listed for each map unit are only those
that have the same rating class as listed for the map unit. The percent composition
of each component in a particular map unit is presented to help the user better
understand the percentage of each map unit that has the rating presented.
Other components with different ratings may be present in each map unit. The
ratings for all components, regardless of the map unit aggregated rating, can be
viewed by generating the equivalent report from the Soil Reports tab in Web Soil
Survey or from the Soil Data Mart site. Onsite investigation may be needed to
validate these interpretations and to confirm the identity of the soil on a given site.
Rating Options
Aggregation Method: Dominant Condition
mNatural Resources Web Soil Survey 7/6/2012
Conservation Service National Cooperative Soil Survey Page 4 of 5
Septic Tank Absorption Fields-Weld County, Colorado, Southern Part
Component Percent Cutoff: None Specified
Tie-break Rule: Higher
USDA Natural Resources Web Soil Survey 7/6/2012
Conservation Service National Cooperative Soil Survey Page 5 of 5
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Farmland Classification—Weld County, Colorado, Southern Part
MAP LEGEND MAP INFORMATION
Area of Interest (A01) mg Prime farmland if Major Roads Map Scale: 1 :2,170 if printed on A size (8.5" x 11 ") sheet.
•
Area of Interest (AOI) subsoiled, completely
removing the root ti Local Roads The soil surveys that comprise your AOI were mapped at
Soils inhibiting soil layer 1 :24,000.
Sod Map Units mg Prime farmland if irrigated -- -- - - __
and the product of I (soil Warning: Soil Map may not be valid at this scale.
Soil Ratings erodibility) x C (climate
Not prime farmland factor) does not exceed 60 Enlargement of maps beyond the scale of mapping can cause
Ill
Prime farmland if irrigated misunderstanding of the detail of mapping and accuracy of soil
MO All areas are prime and reclaimed of excess line placement. The maps do not show the small areas of
farmland salts and sodium contrasting soils that could have been shown at a more detailed
ME Prime farmland if drained I. Farmland of statewide scale.
tr Prime farmland if importance - -- —
protected from flooding or Farmland of local Please rely on the bar scale on each map sheet for accurate map t
not frequently flooded importance measurements.
during the growing season - Farmland of unique
Prime farmland if irrigated importance Source of Map: Natural Resources Conservation Service
Web Soil Survey URL: http://websoilsurvey.nres.usda.gov
Prime farmland if drained Not rated or not available Coordinate System: UTM Zone 13N NAD83
and either protected from Political Features
flooding or not frequently This product is generated from the USDA-NRCS certified data as
flooded during the growing 8 Cities of the version date(s) listed below.
season Water Features
Prime farmland if irrigated Soil Survey Area: Weld County, Colorado, Southern Part
Streams and Canals Survey Area Data: Version 11 , Aug7, 2009
and drained
ug
i Prime farmland if irrigated Transportation Date(s) aerial images were photographed: 6/22/2005
and either protected from Rails
flooding or not frequently The orthophoto or other base map on which the soil lines were
flooded during the growing Interstate Highways compiled and digitized probably differs from the background •
season imagery displayed on these maps. As a result, some minor shifting
�. US Routes of map unit boundaries may be evident. 1
USDA Natural Resources Web Soil Survey Y 7/6/2012
Conservation Service National Cooperative Soil Survey Page 2 of 3
a
Farmland Classification-weld County, Colorado, Southern Part
Farmland Classification
Entinfand Caulflation --swan by Map Via-Wild Cam►.-colonels, souVi fn lc06R
llap-sitift symbol j Map unit nano ji Riding Acres In AO1 - i
47 Olney fine sandy loam, Prime farmland if irrigated and the product
1 to 3 percent slopes of I (soil erodibiiity) x C (dentate factor)
5.1 23.8%
does not exceed 60
51 Otero sandy loam, 1 to Prime farmland if irrigated and the product 16.5 76.2%
3 percent slopes of I (soi erodibitity) x C (climate factor)
does not exceed 60
Totals for Ara of Interest 21.1 100.0%
Description
Farmland classification identifies map units as prime farmland, farmland of
statewide importance, farmland of local importance, or unique farmland. It identifies
the location and extent of the soils that are best suited to food, feed, fiber, forage,
and oilseed crops. NRCS policy and procedures on prime and unique farmlands
are published in the "Federal Register," Vol. 43, No. 21 , January 31, 1978.
Rating Options
Aggregation Method: No Aggregation Necessary
Tie break Rule: Lower
USDA Natural Resources Web Soil Survey 7/642012
Conservation Service National Cooperative Soil Survey Page 3 of 3
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