HomeMy WebLinkAbout800434.tiff also continue to increase as the capacity of the treatment system be-
comes more and more overtaxed. Effects would be continued degradation
of stream water quality below the lagoon outfall. Because irrigation is
a primary use of water downstream from the lagoon outfall, increased
nutrient (nitrogen and phosphorus compounds) levels could be considered
desirable from an agricultural viewpoint. However, excess nitrate can
reduce soil permeability and, if pathogens are present in the irrigation
water, health hazards may occur.
Although discharge of lagoon effluent into the Little Thompson
River at Johnstown is but one of several factors degrading water quality
in the drainage, continued degradation of lagoon effluent quality would
contribute to overall limitations on beneficial uses of downstream
waters.
Water Quantity
The no action alternative would have very little effect on water
quantity. Local irrigation users, located downstream from the facilities
area, are the main beneficiaries of both lagoon effluent discharge to
the river and groundwater recharge resulting from pond seepage. Because
effluent flow will likely increase in the future as population and
industrial water use increases in the Johnstown area, amounts of water
available for downstream users will also likely increase. Because most
of this water will likely be appropriated by water rights, future alterna-
tive uses of the effluent could meet legal obstacles.
Biology
As discussed for water quality, the no action alternative would
cause continued degradation of the aquatic habitat below the lagoon out-
fall. However, quality of this habitat is affected not only by lagoon
ko55
100
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effluent, but also by upstream point source discharges, non-point source
pollution, water temperature, and stream substrate. Therefore, it is
likely that existing aquatic communities below the lagoon outfall have
adapted to a somewhat degraded habitat. If no action is taken to upgrade
the lagoon system, diversity and abundance of aquatic life below the
outfall would probably decline slightly unless concentrations of ammonia
or other noxious chemicals in the effluent reached levels that are
toxic. If such toxic concentrations should occur, significant dis-
turbance of the aquatic habitat would occur. Detrimental effects to
wildlife could occur if system overloading caused increased degradation
of river water immediately below the outfall. Wildlife drinking such
contaminated water could suffer from the intake of pathogens or toxic
chemicals.
Land Use
The no action alternative would have little effect on existing land
use. However, future land use patterns could be affected if no action
is taken to improve wastewater treatment. Both residential and industri-
al growth would probably be limited since expansion in the area would
cause continual overloading of the lagoon system with a resultant dis-
charge of poor quality effluent that could pose public health problems.
Socioeconomics
Irretrievable costs would be incurred if the effluent continued to
exceed state discharge standards . These costs would be in the form of
lost federal monies and possible fines levied by the state of Colorado.
Aesthetics
The primary impact would be the odor that is commonly emitted from
the lagoon in spring. Throughout most of the year no odor exists, but
101
after a spring thaw, algae are not yet active enough to prevent somewhat
anoxic (oxygen-depleted) conditions in the lagoon, and odor problems
result. Continued overloading of the lagoons and resultant discharge of
poor quality effluent would cause aesthetically unpleasing conditions in
the Little Thompson River near and below the discharge.
Alternative 2. Mechanical Treatment Plant Utilizing Activated
Sludge Process
This alternative would involve construction of a mechanical treat-
ment plant using the oxidation ditch, activated sludge process. Existing
lagoons would be decommissioned and a new treatment plant would be
built, either in the general area of the existing lagoon system or south
of John;;fiown (east of Route 257 and west from the Little Thompson River)
(see Figure 3. 1a) .
Water Quality
Mechanical treatment of sewage, such as activated sludge, provides
a controllable means for processing waste to ensure that final effluent
meets state discharge limitations. Effluent from such a treatment plant
would have lower levels of BOD (organic content) and suspended solids
than does lagoon effluent. Fecal coliform levels would also be reduced
because chlorination of the effluent would remove nearly all of the
harmful bacteria in the effluent. Discharge of this higher quality
effluent to the Little Thompson River would improve stream water quality
below the discharge. Expected improvements in stream quality would be
higher dissolved oxygen concentrations, lower turbidity, and fewer
pathogenic organisms. Inorganic nitrogen and phosphorus salts are not
removed to any substantial extent by secondary treatment, so levels of
these materials in the stream would not be significantly lowered.
102
Add:_c: on of chlorine to die effluent is beneficial since most of the
pathogenic organisms in sewage are destroyed; however, residual chlorine
in cite effluent can be :a stream contaminant unless chlorination is
carefully controlled. The overall effect of implementing this alter-
native -ould be an immediate improvement in Little Thompson River water
quality just below the existing discharge. However, the effect of the
alternative on improving downstream water quality in the Big Thompson
and South Platte rivers is interrelated with other point and non-point
sources of pollution and of water use plans in these drainages. Unless
extensive water quality management and water conservation plans are
adopted throughout the drainage, significant improvements in downstream
water quality would not occur solely as a result of constructing a
mechanical treatment plant to treat sewage from the Town of Johnstown.
Water Quantity
Mechanical treatment plants process sewage more rapidly than lagoon
systems with less loss of water due to evaporation or seepage to ground-
water. Abandonment of the lagoons (about 10 acres) would cause a net
gain of about 25 acre-feet per year in discharges to the Little Thompson
River assuming that evaporative water losses at a mechanical treatment
Plant are insignificant. A major portion of flow augmentation would
occur during the irrigation season. Lagoon seepage likely exceeds loss
due to evaporation; however, this seepage recharges groundwaters that
eventually discharge back to the river downstream from the lagoon.
Therefore, seepage is actually a temporary loss of surface water. Thus,
imriementation of a mechanical treatment plant would interrupt the
nearly uniform gain in downstream flows caused by lagoon seepage to
alluvial groundwaters, but would augment flow in the Little Thompson
103
River at the point of effluent discharge. This alteration in timing and
location of gain to downstream users would be favorable to some and
detrimental to others.
Biology
An improvement in effluent quality would be a positive benefit for
the aquatic habitat in the Little Thompson River below the discharge.
As discussed in the evaluation of the no action alternative, factors in
addition to water quality degrade habitat in the lower reaches of this
river. Therefore, lowering organic loads, suspended solid levels, and
bacterial concentrations in the effluent would only moderately improve
the overall aquatic habitat. Diversity and abundance of algae and
macroinvertebrates would probably increase somewhat downstream from the
existing discharge. Also, it is likely that numbers of non-game fish
may increase somewhat in this area, but the habitat would still not be
suitable for supporting game fish. Because chlorination of effluent
would be included with this alternative treatment, impact to aquatic
life could occur if residual chlorine levels reached levels that were
toxic to organisms. Most critical times would be during low stream flow
when minimal amounts of receiving water are available for diluting the
effluent.
Construction of a mechanical treatment plant would disturb some
terrestrial wildlife; however, due to the limited numbers of wildlife
likely to occur near construction areas, this effect would be minor. If
a treatment plant was constructed at the site south of Johnstown (Figure
3.1a) , some disturbance of riparian habitat would occur during construc-
tion of the effluent discharge line. However, increasing the quality of
the aquatic habitat by upgrading effluent treatment would probably also
improve riparian habitat for birds and other wildlife.
104
Land Use
The effects of a mechanical treatment plant on existing land use
would depend on the location of this facility. If the treatment plant
is constructed at the site south of Johnstown, some agricultural land
would be lost. While the plant may not be of significant size to cause
a major land use conflict, some impact on surrounding agricultural land
could be caused by construction activities.
Future land use patterns may change if the mechanical treatment
facility is constructed. The new facility would have an expanded
capacity and thus, it is likely to encourage growth in the facilities
area. This growth could be in the form of a new residential community
or a new industrial development or a combination of the two.
Aesthetics
Any mechanical treatment facility would be an intrusion on the
landscape. The cost of constructing a facility that would be hidden by
the landscape, or that enhances it, is prohibitive. This facility
would, however, eliminate the odor problem of the existing lagoons and
enhance the aesthetics of the Little Thompson River near the discharge.
Alternative 3. Mechanical Treatment Plant Utilizing Trickling
Filter Process
This alternative is similar to Alternative 2 except that a trickling
filter process rather than activated sludge would be used for secondary
treatment. Existing lagoons would be decommissioned and a new treatment
plant would be built either in the general area of the existing lagoon
system or south of Johnstown (east of Colorado Highway 257 and west from
the Little Thompson River) (see Figure 3.1a) .
105
Water Quality
Similar water quality improvements as described for Alternative 2
(activated sludge) would also occur if Alternative 3 (trickling filter)
was implemented.
Water Quantity
Basically, the same water quantity trade-offs as described for
Alternative 2 (activated sludge) would occur if Alternative 3 (trickling
filter) were implemented. Due to the greater surface area exposed and
longer treatment times, greater evaporation would occur for the trickling
filter alternate. Thus, somewhat less water would be discharged from a
trickling filter plant.
Biology
The same type of effects on aquatic and terrestrial habitats as
described for Alternative 2 (activated sludge) would apply should Alter-
native 3 (trickling filter) be implemented.
Land Use
The impacts of this alternative on land use are basically the same
as those of Alternative 2. Land requirements for a trickling filter
plant are somewhat greater than for an activated sludge plant but the
overall impacts will remain the same.
Aesthetics
At times, some odor would probably exist in the immediate area of
the plant. Odors associated with trickling filter plants are often
somewhat greater than those at an activated sludge plant. Creation of
structures associated with the trickling filter plant would cause some
visual impact on surrounding landscapes.
106
Alternative 4. Mechanical Treatment Plant Utilizing Rotating
Biological Contactor (RBC) Process
This alternative is a modification of the trickling filter process
and would have similar environmental effects as Alternative 3 (trickling
filter)
Alternative 5. Upgrading the Existing Lagoon System
This alternative includes modifications and renovations of the
existing lagoon system. Basically, very little disturbance of land
would be i_tvolved. Pond renovation would require emptying of the lagoon,
cell by cell , and removal of bottom sediment to increase lagoon capa-
city. Modifications would prevent hydraulic by-pass of untreated sewage
and would provide for chlorination of the effluent.
Upgrading the existing lagoon system was selected as being the best
alternative when environmental, engineering and economic concerns were
all evaluated. An environmental assessment of this alternate is pre-
sented in Section 5 of this report.
Alternative 6. New Lagoon System
This alternative would entail decommissioning of existing lagoons
and const „cttc:n of a new lagoon system either just east of the existing
system or s<,u3h of Johnstown (east of Colorado Highway 257 and west of
the Little h-r irson River) (see Figure 3.1a) .
Water a- city
Beneficial impacts to water quality associated with this alterna-
tive would be the same as those discussed in Section 5 for the proposed
action (upgrading the existing lagoon system) .
107
Water Quantity
Modifications to ground and surface water supplies caused by imple-
menting this alternative would be equivalent to those described in
Section 5 for the proposed action (upgrading the existing lagoons) .
Biology
Land disturbance would be necessary for construction of a new
lagoon system. Although wildlife and natural vegetation are limited at
proposed construction sites, wildlife in nearby riparian habitat could
be disturbed by construction. However, such disturbance would be tempor-
ary and is not considered to be of major significance.
Land Use
The result of a new lagoon system would be an expansion of treat-
ment facilities in the study area. If the area adjacent to the existing
lagoon system is utilized, no additional land would need be purchased.
If the site south of Johnstown is selected, land must be purchased.
Land use impacts at the site south of Johnstown are the same as those
described for Alternative 2. The land use impacts at the existing site
will be described in Chapter 5.
Aesthetics
Odor problems associated with lagoon systems are discussed in the
no action alternative.
Alternative 7. Land Application - Rapid Infiltration/Percolation
This alternative would include treatment of sewage in the existing
lagoon system, chlorination of effluent, and application of effluent to
lands either west or northwest of the lagoons (see Figure 3.1a) .
108
Water Quality
Application of lagoon effluent to land would remove a point source
waste discharge to the Little Thompson River. Therefore, water quality
in the river below the existing discharge would improve. Most notice-
able improvements would be lower stream levels of organic compounds (BOD
loads) , suspended solids, ammonia, nitrate, and total phosphorus.
Application of effluent to land involves a potential degradation of
groundwater resources. A qualitative survey of soil and groundwater
characteristics in areas selected for effluent application indicated
that depth to water was about 10 feet and soil permeability was moderate
at Site 1 (Figure 3. 1a) . At Site 2, depth to water was estimated to be
about 30 feet and soil permeability was moderate. Such conditions
should provide sufficient filtration to prevent groundwater degradation
at these sites. However, due to the greater depth to groundwater at
Site 2 compared to Site 1, potential for degradation of groundwaters by
application of effluent would be less at Site 2 than at Site 1.
Water Quantity
Removing direct effluent discharge to the Little Thompson River
would cause decreased stream flow. Assuming a typical lagoon effluent
discharge of 320,000 gallons per day (about 0.5 cfs) and a mean stream
flow of 34 cfs, mean flow could be reduced by about 1.5 percent. How-
ever, application of effluent to land would recharge groundwaters that
eventually contribute to river flow. Thus, land application of effluent
would cause a net loss of stream flow somewhat less than that of the
effluent discharge. The overall effect of land application of effluent
would be a depletion in stream flow that would eventually be partially
recovered by additional groundwater contribution to stream flow.
109
Biology
Some improvement in aquatic and riparian habitat below the existing
lagoon discharge would occur if effluent was applied to the land.
However, only moderate improvements could be expected and depletion of
stream flow caused by removing the effluent discharge could offset these
improvements, especially during low flow periods. Since groundwater
contribution to river flow would increase somewhere along either the Big
or Little Thompson rivers. Improvements in aquatic and riparian habitats
would occur at places where groundwater contributions to river flow
increased due to the land application of effluent. Any disturbance of
wildlife caused by construction of pipelines associated with this alter-
nate are considered to be minor.
Land Use
This alternative would necessitate the utilization of existing
agricultural land for application purposes. While this may conflict
with future land use, the impact may be offset by soil enrichment and
increased agricultural productivity.
Another land use impact would occur during construction of a pipe-
line from the lagoons to the application field. This impact would be
greatly reduced if the more westerly site (Figure 3.2a) was chosen as
the application point. By selecting this site, the necessity of trav-
ersing over and trenching in agricultural fields would be eliminated.
Aesthetics
Odor problems can occur with land application of sewage effluent if
the effluent doesn't remain well aerated while it percolates through the
soil. Also, nearby residents may perceive that application of sewage
effluent to neighboring lands is degrading to their environs.
110
Alternative 8. Land Application - Irrigation of Farm Lands
This alternative would be similar to Alternative 7, only direct
beneficial use would be made of the lagoon effluent by irrigating lands
just east of the lagoons (see Figure 3. 1a) . A 10 acre reservoir would
be built east of the lagoons to hold effluent when irrigation was not
occurring.
Water Quality
Similar effects on surface quality as described for the other land
application system (Alternative 7) would occur with this alternate.
However, due to the proximity of the Little Thompson River to the pro-
posed irrigation land (Figure 3.1a) and the low soil permeability,
irrigation runoff could reach the river. Such runoff, which could con-
tain pesticides and elevated levels of dissolved solids, could be of
worse quality than existing lagoon effluent.
Water Quantity
This alternative, in effect, changes the present indirect use of
lagoon effluent as irrigation water to a direct use. Because evapo-
transpiration loss associated with this alternative would be greater
than that for the other land application system (Alternative 7) , less
recharge of groundwater would occur with the irrigation alternative.
Thus, downstream flows would be augmented little, if at all, by addi-
tional groundwater contributions. Because waters in this drainage are
mostly appropriated by irrigators, this alternative would infringe upon
rights of downstream water users. This could be avoided if the effluent
was delivered to a user who already owns water rights in this section of
the river. Then, his rights for river water could be exchanged for
usage of lagoon effluent.
111
Biology
Similar effects on biology as described for Alternative 7 (land
application-infiltration) would also occur with the irrigation alter-
native. However, runoff from irrigated lands could contain pesticides
that would be deleterious to aquatic organisms and riparian wildlife.
Any beneficial effects to downstream habitats due to augmented ground-
water contributions, as described for Alternate 7, would not occur with
the irrigation alternative.
Land Use
Agricultural lands would benefit most by the use of this alterna-
tive. The temporary disturbance of agricultural land by construction
would be far outweighed by the long-term increased agricultural produc-
tivity that resulted from this use of effluent. Construction of an
effluent holding basin would cause a loss of 10 acres of agricultural
land. Future land use near the application area may be limited if this
alternative was adopted. Careful planning of industrial development
would be needed to ensure that industrial waste chemicals did not seri-
ously degrade effluent quality to a degree that it was not usable for
irrigation.
Aesthetics
The potential for odor and related problems are the same as those
described for Alternative 7.
112
4.0 PROPOSED ACTION
The proposed alternative consists of upgrading the existing lagoon
system. Components of this system include increasing pond capacity,
creating a 3-cell lagoon system, and chlorinating lagoon effluent. A
detailed description of this alternative is presented in Volume I of the
201 Facilities Planning Study.
113
5.0 ENVIRONMENTAL EFFECTS OF THE PROPOSED ACTION
Primary and secondary effects of the proposed alternatives are
presented in this section along with suggested mitigative measures for
adverse effects of the proposed action.
5.1 Primary Impacts
Water Quality
Upgrading and modifying the existing lagoon system would bring
effluent discharge into compliance with Colorado discharge limitations.
This would be accomplished by eliminating hydraulic by-pass of untreated
sewage, improving the treatment capability of the lagoons by creation of
a 3-cell system, and destroying pathogenic organisms by chlorination of
lagoon effluent. Such action would cause decreased levels of organic
loads (HOD) , suspended solids, and coliform bacteria in lagoon effluent.
However, it is likely that the proposed action would have little effect
on levels of nitrogen and phosphorus compounds in the effluent. Effects
on stream water quality would be: reduced organic loads, lower turbidity,
and fewer pathogenic organisms immediately downstream from the effluent
discharge. Because irrigation is a primary use of water downstream from
the discharge, nitrogen and phosphorus compounds in the water are bene-
ficial from an agricultural viewpoint. However, excess nitrate can
reduce soil permeability and can therefore prove detrimental if applied
in excess to agricultural lands. Although no impoundments are located
immediately downstream from the discharge, nitrogen and phosphorus
compounds could contribute to eutrophication problems in reservoirs
downstream on the Platte River. Because water quality in lower reaches
114
..,: 2;.L tie Thompson and Big Thompson rivers is affected by many
fazr.o.:s , ..:eluding point and non-point source discharges and water
apgrz,ding effluent treatment at Johnstown would have limited
effects on improving water quality downstream in the drainage. Primary
imps .ti. .,,_;,:. . would be in the area immediately downstream from the lagoon
discharge.
Chlorination of effluent, while providing a beneficial removal of
pathogenic organisms from the effluent, can cause degradation of stream
water quality if residual chlorine concentrations reach levels toxic to
aquatic organisms. It is recommended that chlorination be carefully
controlled to ensure protection of aquatic life.
Water_Quantity
Upgrading the existing lagoons would have very little direct effect
on either surface or groundwater supplies. Because effluent flow from
the upgraded lagoon system would likely increase in the future as popu-
lation and industrial water use increases in the Johnstown area, amounts
of water available for downstream users would also likely increase.
Because most of the water will probably be appropriated by water rights,
future alterna fac uses of lagoon effluent could meet legal obstacles.
Bic_ogy
ImprovemeLt:s ie effluent water quality would also improve aquatic
and riparian '!aiLats just below the discharge. However, quality of
these habitats is affected by factors in addition to the quality of
lagoon effluent . Other point source discharges located upstream, non-
point source poJi;.tion, water diversions, water temperature and stream
substrate also degrade aquatic and riparian habitats in the Johnstown
area. Therefore, it is likely that existing aquatic communities have
115
adapted to a somewhat degraded habitat. If the existing lagoon system
is upgraded, diversity and abundance of aquatic life below the discharge
would probably increase slightly, unless concentrations of residual
chlorine in the effluent reached levels that are toxic. Also, it is
likely that numbers of non-game fish would increase somewhat in the
river below the discharge, but the habitat would still not be suitable
for support of non-game fish.
Because upgrading the existing lagoons would involve only minimal
disturbance of land, effects to any wildlife in the area would be minor.
Land Use Impacts
Impacts of the proposed alternative on land use will be minor. The
only agricultural land disturbed by upgrading the lagoon will be areas
adjacent to the lagoons. Replacement of the existing trunk line will be
made in existing easements of the town. Upgrading the existing system
and installing new trunk lines will result in some disruption of traffic
flows along Colorado Highway 60. There will be no displacement of human
populations or structures connected with the implementation of the
proposed alternative.
A mitigation measure that may lessen land use impacts would be to
perform the upgrading of trunk lines and the lagoons in as brief a span
of time as possible. The result would be that traffic flows are dis-
rupted for a shorter period of time.
Noise Impact
Noise impact from the lagoon site will be minor. The conditions at
the site are such that blasting will not be necessary. Construction
noise levels related to implementation of the proposed alternative will
probably range from 20 to 100 dBa at the source. Table 5.1a presents
noise levels with various effects on people as determined by the EPA.
116
table 5.1a. Noise level effects on humans
Moderate Level Appreciable Level
Effects of Risk (dBa) (a) of Risk (dBa)
Hearing Impairment 70 90
Speech Interference 45 60
Sleep Interference 40 70
Annoyance 40 60
Task Interference 55 60
Physiological Stress (b) -- --
Source: U.S. EPA. 1971. Noise from Construction Equipment and
Operations; Building Equipment and Home Appliances.
(a) Probability that the effect will occur.
(b) Affected by quality, frequency, individual sensitivity, time of day,
and nature of exposure.
117
Since no businesses or residences are in the immediate vicinity of the
proposed construction site, no noise impacts are expected.
Aesthetic Impacts
The physical components of the proposed wastewater treatment alter-
native will be of a low profile design, thus eliminating skylining
effects. The elevation of the proposed facility is generally lower than
most of the surrounding topography, thus screening the facility from
long range view. The proposed facility would be located adjacent to the
railroad spur which borders Highway 60 between Johnstown and Miliken.
Portions of this facility may be visible when traveling from one town to
the other.
Lagoon systems have odor problems when oxygen produced by algae is
insufficient to meet waste demands. Such occurrences are most common in
spring after lagoon ice cover melts. Aeration of cells 1 and 2 in the
future will eliminate this odor source. Most offensive odors will occur
when ponds are emptied and bottom sediments are removed to increase pond
capacity.
5.2 Secondag Impacts
The presence of a wastewater treatment facility may require the
establishment of a buffer zone or green belt between the facility and
possible future development. A green belt would remove agricultural
land or possible development land; however, it would enhance the quality
of the land, the treatment facility, and wildlife habitat.
One restriction to development in the Johnstown area would be
eliminated since the proposed facility would be capable of treating
wastes for a larger population. Should uncontrolled development occur
in the Johnstown area, a wide variety of secondary impacts could occur.
118
Other alternatives , with the exception of the no action alternative,
could also contribute to similar secondary impacts. Possible secondary
impacts are:
• Increased land use conflicts between developers and agricul-
ture,
♦ Water quantity conflicts between developers and agriculture,
♦ A decline in air quality due to population concentration and
increased vehicular traffic, and
• Further decline of present transitional residences in Johns-
town due to outward migration to peripheral subdivisions .
719
6.0 FAVORABLE ENVIRONMENTAL EFFECTS
Favorable environmental impacts resulting from the implementation
of the proposed alternative will be improved quality of effluent from
the Town of Johnstown Wastewater treatment system. Design criteria of
the proposed alternative would allow the town to consistently meet
current state effluent criteria for suspended solids, BOD5, and fecal
coliform bacteria. Effects of improvement of water quality in this
stretch of the drainage are summarized below:
• reduction in potential health problems for residences imme-
diately downstream of the discharge,
• slight improvement of existing aquatic communities below the
discharge, and
• improvement of the general aesthetics of the drainage channel.
120
7.0 ADVERSE ENVIRONMENTAL EFFECTS
Adve .`.ar, environmental effects related to the proposed alternative
are not major in scale. Minor disturbances to agricultural land and
traffic will occur during construction; however, land use will not be
altered significantly during the upgrading of the proposed facility.
Some aesthetic problems (primarily increased odor) will occur at times
during pond renovation.
•
121
8.0 IRREVERSIBLE AND IRRETRIEVABLE COMMITMENT OF
NATURAL, CULTURAL, AND OTHER RESOURCES
Resources committed directly to the proposed wastewater treatment
alternative can be placed into two general classes: renewable and non-
renewable. If wood is utilized, it can be considered as a renewable
resource, Metals utilized in the various components of the facility are
the principal non-renewable, but recyclable, natural resources committed
to the project.
Labor involved in the construction, operation, and maintenance of
the proposed facilities will be irretrievable.
There will be no loss of cultural resources if the proposed action
is implemented.
122
9.0 RELATIONSHIP BETWEEN LOCAL SHORT-TERM USES OF MAN'S ENVIRONMENT
AND THE MAINTENANCE AND ENHANCEMENT OF LONG-TERM PRODUCTIVITY
The economy of the area to be served by the proposed wastewater
treatmeni tu,Lility is based on agriculture and various industries in the
Denver-Greeley area. Preliminary studies indicate that a portion of the
Johnstown work force commutes to jobs outside the town. If the town of
Johnstown develops as a "bedroom community" for the Denver metropolitan
area or Greeley, then adequate sewage treatment facilities will be
required to serve the increased population.
123
10.0 SUMMARY AND CONCLUSIONS
Y' rr• ; ltimate objective of the facilities plan is to provide the
Lcwn. of Johnstown with a cost-effective, well designed and environ-
rnent Wy sound wastewater treatment system whose effluent will meet
federal and state standards. Environmental conditions and wastewater
_y._a ;rrt alternatives for the Town of Johnstown Facilities Area have
rnn i-+ tstigated and assessed. To summarize this assessment, a matrix
m the , allowing a combined evaluation of engineering and environmental
c, TiphiiTT7t , was implemented. This system (Figure 10a) allows positive
oT L:a2- t;.?;e ratings for various environmental and engineering components
b different wastewater treatment alternatives. In rating
or benefit of a particular alternative, objective judgment
establish qualitative effects that were rated as low, moder-
ato, high, or no effect. Based on ratings presented in Figure 10a,
'_c::_;-mate 5 (upgrading the existing lagoon system) was selected as the
:host viable alternative for the Town of Johnstown Facilities Area.
124
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J j + + +
O 7 N CJ
O — N N
w + i + + + +
tlA0
,,,,,,,,o/ ,
saa
''9ia /S N N N N N N N M
'''',/,s,
U /°S//aMg °S O O O O O o O O
O i 7 , 7 7 7 - M
m °atlS °P P°6
pa
Aa6`PAa
p _
/ip b O O O O O O O O
N N N N +
nJPN O � i O i i i
— �
,- N 01 C M CO ts CO
W W W W W W W W
Q a a a a Q~ a a
Z Z Z Z Z a Z Z
w W W W W W W W
J J J J J J J J
Q 4 Q Q Q Q 4 Q
11 .0 LITERATURE CITED
Beckman, W. C. 1974. Guide to the fishes of Colorado (Rev.) University
of Colorado Museum. 110 pp.
Bunnel, Ron. 1978. Alternatives for the Great Western Railroad in
Johnstown, Colorado. University of Northern Colorado.
Engineering Consultants, Inc. , Toups Corporation. 1974. Comprehensive
Water Quality Management Plan, South Platte River Basin, Colorado.
693 pp.
Larimer-Weld Regional Council of Governments. 1978. Draft Areawide
Water Quality Management Plant for Larimer and Weld Counties,
Colorado (State Planning Region 2) . Loveland, Colorado. pp. dis-
continuous.
M & I, Incorporated. 1973. Report on wastewater treatment evaluation
and survey for Town of Johnstown, Weld County, Colorado. 22 pp.
Rinella, F. 1978. Colorado Division of Wildlife, Wildlife Conservation
Officer. March 9, 1978. Personal communication to T. M. Phelan,
Ecology Consultants, Inc. , Fort Collins, Colorado.
Ryder, R. A. 1976. Birds. pp. 120-129. In Thorne Ecological Institute.
A biological survey of Fort St. Vrain Nuclear Generating Station
Site. 138 pp.
U.S. Department of Commerce, 1974. Climates of the states, U.S. The
western states. Water Information Center, Inc. Port Washington,
New York. pp. discont.
U.S. Public Health Service. 1962. Drinking water standards. Title 42-
Public Health; Chapter 1 - Health Service, Dept. of Health, Edu-
cation, and Welfare; Part 72-Interstate Quarantine Federal Register
2152.
Wunder, B. A. 1976. Mammals, amphibians, and reptiles, pp. 132-138.
In Thorne Ecological Institute. A biological survey of Fort St.
Vrain Nuclear Generating Station Site. 138 pp.
126
APPENDIX 1
.
•
TAbLE A.--ACREAL,c AND PROPOhTIOt.ATE EXTENT OF THE SOILS WELD COUNTY - SOUTH PART
hap I Soil name Acres Percent
symbol
-T T
I Altran loam, 0 to 1 percent slopes 19,740 1.7
2 Altvan ?nom. 1 to 3 percent slopes 2,140 0.2
3 Aquolls ana t.yvents, gravelly substratu.., 34,039 3.0
4 Ayuoils and :...u<•pts, flooded 22,530 2.0
5 ,Ascalon sandy loan, 1 to 3 percent slopes 12,230 1.1
b Ascalon sandy loam, 3 to 5 percent slopes 6,452 0.7
7 Ascalon sandy loan, 5 to 9 percent slopes , 640 0.1
o Ascalon loam, 0 to 1 percent slopes 1 4.290 0.4
9 Ascalon loan, 1 to 3 percent slopes I 960 0.1
10 uankard sandy loam, 0 to 3 percent slopes -! 19,900 1.7
11 bresser sandy loam, 0 to 1 percent slopes I 1,b20 0.1
12 bresser ssnsy loam, 1 to 3 percent slopes ; 1,220 0.1
13 Cascajo gravelly sandy loam, 5 ,to 20 percent slopes I 1,630 0.2
14 Colby loam, 0 to 1 percent slopes ----1 7.746 0.7
15 Colby loam, 1 to 3 percent slopes 1 19.310 1.1 -
16 ,Colby loam. 3 to 5 percent slopes - ! 1,220 , 0.5
17 (Colby loam. 5 to 9 percent slopes I 3.930 I 0.3
l&. {Colby-Arlene loama, 3 to 9 percent slopes •- - 21,060 1 1.0
19 !Colombo clay loan, 0 to 1 percent slopes 1 9,110 1 0.6
2G (Colombo cl..l loop;, 1 to 3 percent slopes ; 4,120 = 0.4
21 Iuacono clay loam, 0 to 1 percent slopes ---I 10,960 1 1.0
22 Iuacono clay loan. 1 to 3 percent slopes i 1,300 i 0.1
23 !Fort Collins loam, 0 to 1 percent slopes --- 800 ! 0.1
24 1rort CoI`; ::,Z.i. 1 to 3 percent slopes------- •--- 2,540 I U.2
25 I nave..so:, 1 , Ct to 1 percent slopes - 10,090 1 0.9
2b I:,averaou t';•: 1 to 3 percent slopes - - 9,290 1 0.6
27 ineldt s:..-y cs.,y. 1 to j percent slopes 2,170 1 0.2
i6 -,eldt si.l , ay, 3 to 5 percent slopes 140 4
29 Juleabur• J.aac, 0 to i percent slopes .--- 6.920 0.6
30 ,:uiestu:.; .. loan, 1 to 3 percent slopes , 2,040 0.2
31 t:1a loam, percent slope' ! 4,150 0.4
32 :.in loan... ' • • , percent slopes-- -- 1 40,960 3.6
3.i ,Kim loom, -.t o percent slopes-----.. ! 7.090 0.6
34 ;sin loam, 5 l percent slopes -- •- 1 6,250 0.5
1 35 ':.ouo-Soet !r.::..1 sands, 0 to 3 percent slope:: 1 11,050 1.0
3( !i•1dt:ay-S: : • :rnplex, 5 to 20 percent slopes 1 1.630 0.1
17 s,.elsor. f:. • boom, 0 to 3 percent. slopes 3,620 0.3
3.J 1•.ebsen 1' . :stem, 3 to 9 percent slopes---• •- ---I 6,210 , 0.5
35 I.4unn la... • 1 percent slopes •-. _---._- -- --- -I 7,740 0.1
40 isuon...11 . ,'er;er•; slopes--.•-.--.----.. - -1 16,520 I 1.4
41 1 .unt1 r1,% . to 1 percent slopes_.••-----••--- I 20,900 I 1.5
s2 : noon c!, , to 3 ri:r::ent slopes._--.--..- .1 1d,940I 1.6
+;S : unn 1 ' to , .rceo. alopca-........ .-.... -..• 1 2,320 I 0,2
44 :olney it 1 t.c j pe:'cet:i. slope ._...___.._-.. 1 19,950 1 1.7
45 1bbue's to S percent .;loi.es_-.---_.-----.- ! 3,330 I 0.3
t.t, ;+tt.:cy :1, .., , G to 1 pe+•.cart slopes--.- .. t
0,730 0.8
,7 ;..boey f;, • ,n. 1 to j pe:r:•ant slops ' 56,300 , 5.1
4b tulney fit ,•!, 3 to 5 percent slopes 15,040 1.3
,, 1e:sk;•7cd s.•'. . ) :Jorcrnt slopes 30,100 3.3
5,C. lt,toro sar, .. . ,. '.o 1 percent slopes 4,190 0.4 -
51 lutero sat:. , ' • !0 3 percent slope 30,970 2.7 .
5c lt.tt'eo oar, ; to 5 percent alo:.es 13,440 1.2
53 ltttero San , . . • 'J -. percent slope< 6,710 0.6
;•C {ram11 Ise •'+rut slope 600 0.1
55 1Lali lua. '. • . 'tent ;;lop•.., - 25U a
56 1 6enonil! c!..; Jr; .. 11 to 3 percent slooau ! 4,020 0.3
57 Inenohill a? . • ess.i. i to y percent slope- - 4,660 0.4
5.1 IUt•inNle lc; . . 1 t 3 percent slops 1,540 0.1
59 !shingle lo. • ) ' ; ercent slopes 1.160 0.1
60 IShin,;le—het.••.: 1 ec".latex, 3 to 9 percent slopes 1,090 0.1 -
61 Tassel tine :,an'.; loom, 5 to 20 percent slopes 6.140 0.5
62 Terry fine sn-:r;. :tar., 0 to 3 percent. slopes 1,990 0.2
63 Terry fine son.:y '.,•..o, 3 to 9 percent slope- 6,800 0.6
64 Tnedalund l000, 1 to 3 percent slopes 7.580 0.7
65 Tnedalund loam, 3 to Y percet,t slopes 3,600 0.3
66 ,ul.m clay loon. U to 3 percent slope, 4,610 0.4
67 101m clay loam. 3 to 5 percent slope; 2,810 0.2
60 IUttic Torriortt grip.:. moderately steep -• 2,900 0.3
09 i9alent stnd, 0 t•, > percent slopes 65,950 5.7
70 1Valent sand, 3 to 9 percent slopes 174,010 15.0
See footnote at too e( table.
I --ACREAGE AND PRUP0nTIUNATE EXTENT OF THE S0ILS••-Continued
Ha Soil name I Acres Percent
Hop __—
symbol _.__._ _.._...
_? 3,520 0.3
72 Vanan toad.:;; . - to 9 percent elopes--- `_"` 60,670 5.8
- 72 Yana 73 Vona loamy sa ! t.am sae
.. ypercent s1: p ___..
' 5 percent slcpea ,^I to,390 1.6
_1 31,045 2.7
75 Vona loamy sae 5 to 9 percent slopes 5,260 0.5
1
75 Vona sandy loan.... t; 1 percent slopes-- .__ �1 14,000 1.3
76 ,Vona saucy load 1 to 3 percent slopes 6,310 0.5
77 Nona saucy lo,-.. _ cc t percent slopes 5,820 0.5
79 (held loam, 0 to . per sot slopes--- 60,470 5.2
79 I'held loam, 1 t aerr rot slopes-------- 2,300 0.2
60 I.eld -Cot, 3 t,. tot slopes- s.l 790 0.1
01 luiley-Col oy elo;-e to 1 percent slopes 26,615 2.3
- '02 :Wiley-Colby coop's_. 1 to 3 percent slopes 6,870 0.6
03 Iiley-Colby coc,'le.. i to 5 percent slopes I 17,750 1.5
Ii 1 152,000 100.0 I Total e Less than 0.1 percent.
TAELC 01.--YIELDS PLR ACRE OF IRRIGATED CROPS WELD COUNTY - 500TH PART
r'.All. yleias wet • .i ated for a high level of management in 1975. Absence of a yield figure indicates the
crop is s. " .. &rown or is not suited) -
�_— I__�_ I I I 1 I
Soil name and I I I I Beans, 1 I
map sym!:o1. )Alfalfa hay'Sugar beets) Corn Corn silage) dry pinto I Onions I Potatoes
I I 1 I I 1 _
iTon —T--Cb "rSae— ct--T—Cum
._...... 5.0 23 -1 160 33 2400 : 525 325
Altvan 1
__ 1 -- ---
Aquolls I
4 ____.. .-_..... _-_ ___ --- --- --_ "_ ---
Aquolls
-- --_ r --- ---
Ascalon -.
_.,.._ --- -•- --- i, --- ---
Ascalon 7 1 ---
Ascalon >.. ,.. _.
i
____..__..._.... ,_...__ y,p♦ 24 180 35 2700
o 550 1 350
Ascalon I I I
c ..., ..___,. 5. ; 2:'. 160 33 2401. 525 { 325
Ascalon
I E
banaard
` c _ 24 [ 180 35 2700 550 350
bresser
5.5 23 160 33 2400 525 325
Dresser e I
Casco)
5.5 1 24 180 35 2700 --- -'- -.
Colby I 1
15 .'___1 5.5 1 23 . 160 33 2400 --- ---
Colby
..____ 4.0 18 100 23 1800 --- ---
Colby
--- 80 20 -- --- ---
Colby
Colby
19' .-____ 5.5 24 170 35 2700 550 350
Colombo
20' ------ 5.5 23 ' 160 33 2400 525 325
Colombo
21 5.5 26 170 33 2400 525 325
bacono
22 5.5 25 150 30 2400 525 325
Dacono
23 - ..,--- 5.5 24 180 35 2700 550 ---
fort Collins
24 ,..._ 5.5 23 160 33 2400 525 ---
Fort Collins
25-_.._ ,.._..._.._.__._ 5.5 23 160 33 2400 --- ---
Raverson
5.5 20 150 30 2400 --- ---
Haverson + + E
+
'TABLE 131.--YIELDS PER ACRE OF IRRIGATED CRUPS--Continued
—7—Soil name and 1 Beans.
map symbol Alfalfa hay Sugar beets Corn Corn silage; dry pinto Onions Potatoes
-- -- --T----Ton----1--- Ton Hu Ton T' Zb Sack Cut
27 4.5 20 -- 25 --- --- --- .
Heldt
2b 4.0 --- 25 --- --- ---
Heldt
29 -_- 5.5 23 180 35 2400 525 350
Julesburg
30 _,___ 5.5 23 160 33 2400 525 325
Julesburg
31 ---- 5.5 24 180 30 2700 550 350
Kin
32 5.5 23 160 30 2400 525 325
Kin
33 -__ 4.0 20 140 25 --- --- ---
Kin
34 3.0 80 20 --- --- ---
Aim
35 2.5 --- --- 25 1200 --- ---
Loup
Midway
37 - ! 4.0 21 120 30 2400 --- ---
uulson
3 3.0 --- 70 25 --- ---
Nelson
39 5.5 24 180 35 2700 550 350
Nunn
40 5.5 23 160 33 2400 525 325
11unn
41 5.5 24 180 35 2700 550 350
Nunn
42 5.5 23 160 33 2400 525 325
Lunn
43 5.0 20 150 30 2000 --- ---
ltunn
44 5.0 20 140 30 2400 525 325
Olney
45
3.5 --- 80 20 --- --- ---
Olney
46 5.5 24 180 35 2700 550 350
Olney
47-• 5.5 23 160 33 2400 525 325
Olney
4t 4.0 --- 100 25 1800 --- ---
Olney
3.0 --
- 80 20 --- --- ---
49
Osgood
50 5.5 23 170 33 2400 525 325
Otero
51 5.0 22 150 30 1800 500 -,-
utero • 4
52 4.0 16 100 . 25 --- --- ---
Otero
See footnote at and of table.
TABLE BI.--T1ELDS PEN ACHE OF IRRIGATED CROPS--Continued .—
Soil nave ar: I
--��I
I II Beans,
rap symbol (Alfalfa haylSugar beets( Corn Korn silage dry pinto Onions Potatoes
--. - T- -Tiie T -"Tan"-_.T "Bu _T ---Ton L_5-`1. _..Sia- ---T—.--7X-----
53 _ I �3.0 �--_ 1. �20 +--- --- ---
Otero
54 5,0 23 ic'. 35 2700 --- 350
Paoli
55 - 5.0 23 160 33 2400 --- 325
Paoli
56--- .- 3.0 td 100 25 --••• --- ---
Renohill
57- - 2.0 ---- 80 20 --- ---
henohlll --
;�.-.._.__..�--....___..._ --- ... __- ---
Shingle
60- . ..-. --.. --- ---
Shlni;le
Tassel
62 4.0 20 120 30 2400 --- ---
Terry
63- - --_ 3.0 --- 7C 25 --- --- $ ---
Terry
64 __-_.._._...__ - 4.0 20 130 30 2400 --- ---
Thedalund
65 -- _.... 3.0 --- 80 25 --- --- ---
Tnedalunid
66 -v..---.- 5.5 --- 160 33 --- --- ---
uln
67
4.0 -
-_ 100 25 --- --- ---
...
il1.' .
Ustic Torriorthents
69, 70 3.5 --- 80 22 --- --- ---
Valent
71 _ --- --- --- --- --_
Valeat
72 4.5 20 140 30 --- --- 275
Vona
73 '- '---_-.. _.__-._ 3.5 --. 80 22 --- --- ---
Vona
r
74 __ �_....__ ._... --.. --- --- ---
Vona
5.0 23 i60 30 2400 525 325
Vona
4.5 2,) 140 30 1800 525 325
Vona4.0 lb 160
25 I
Vona
TABLE D1.--YIELDS PER ACRE OF IRRIGATED CROPS--Continued
Soil name and Beans,
map symbol Alfalfa hay Sugar beets Corn Corn silage dry pinto Onions Potatoes
,_..J._T— on "T---Ton —T—Bu Ton --T Lb -- Sack—-- cr
78 5.5 24 180 35 2700 --- -.--
Weld
79 _..,_.... 5.5 23 160 33 2400 ---
Weld
80 4.0 20 100 25 1800 --- ---
Weld
81 5.5 24 180 35 2700 -- ---
Wiley
62 5.5 23 160 33 2400 -- ---
Wiley
i
83 .- 1 4.0 20 100 25 1800 --- __
Wiley
* Yields are for areas protected from flooding.
e• See mapping unit description for the composition and behavior of the mapping unit.
WELD COUNTY - SOUTH PART
TAbLE F.--WILDLIFE HABITAT POTENTIALS
(See text for definiL:ons of 'good, ""fai. ," "poor," and "very poor." Absence of an entry indicates the soil
was not rated)
1 Potential for habitat elements 1 Potential as habitat for--
Soil name and 1-'
^----T ----T---wild
map symbol I Grain I Grasses I herba- Shrubs I Wetland I Shallow (Openland I wetland 'Rangeland
Iona seed I and I ceous I plants I water wildlife 'wildlife 'wildlife
_ n-opsl 1._legumes t plants _areas -+ I -___
�r T I 1
1, 2 Guod Good Fair Fair Poor Very poor Good 'Very poor:Fair.
Altvan
36:
Aquolls Poor ,Poor Good Fair ,Good Good Fair Good Fair.
I I
Aquents Poor 'Poor Good Fair Good Good Fair Good Fair.
1
4a: 1
Aquolls ---- Poor IPoor Good Poor Good Good Fair ,Good Fair.
1
Aquepts ,Poor Poor Good Poor Good Good Fair :Good ,Fair.
5, b Good Good Fair ,Fair (Poor Very poor Good !Very poor:Fair.
Ascalon Ier
I (
I 7 Fair ,Good Fair ' i
Very Door Fair :Very Door Fair Poor
Ascalon 'k'a Sr.
(
6, 9 ---- Good Good Fair Fair Poor Very poor Good Very poor:Fair.
Ascalon 1
10 .- ..__ Poor Fair Fair Fair ,Poor Very poor Fair Very yoor .1Fair.
(
11, 12 Good Good Fair Fair Poor Very
poor Good ,Very poor Fair.
presser 1
13 ,Very poor Very poor Fair Fair Very poor Very poor Poor :Very poor Fair.
Cascajo 1 ,
14, 15 'Co::a Good Fair Fair Poor ,Very poor,Good Very poor Fair.
Colby I 1
1 1
16, 17 Ira!r Good Fair Fair Poor Very poor:Fair ,Very poor Fair.
Colby
i6i:
Colby Fair ,Good Fair Fair Poor Very poor Fair (Very poor Fair.
Adena Fair Good Fair Fair Poor ,Very poor Fair Very poor Fair.
19, 20 Good Good Fair Fair Poor Very poor Good Very
poor Fair.
G olo:IDo
21, 22 Good Good Fair Fair Poor Very poor Good Very poor Fair.
Iacono
23, 24 Good Good Fair Fair Poor Very poor Good Very poor Fair.
Fort Collins
25, 26 Good Good Fair Fair Poor Very poor Good Very poor Fair.
haverson 1
27 .Fair Fair Poor Poor Poor Poor Fair Poor Poor.
heldt
2b -- Fair Fair Poor Poor Poor Very poor Fair Very poor Poor.
heldt
29 Good Good Fair (Fair Poor Very poor Good Very poor Fair.
Julosburg I
1
Good Fair 'Fair Poor Very poor Good Very pooriFalr.
Julesburg I
1
Sec fontnntu:' A' AA :f ta,,Yo
TABLE G.--RECREATIONAL DEVELOPMENT WELD COUNTY - SOUTH PART
(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
map symbol Camp areas 1 Picnic areas Playgrounds Paths and trails
T- 1 r_
1 Slight (Slight Slight Slight.
Altvan
1
2 Slight
Altvan (Slight Moderate: Slight.
1 slope.
3a: 1
Aquolls Severe: (Severe: Severe: Severe:
wetness, 1 wetness, wetness, wetness,
, floods. 1 floods. floods. floods.
Aquents Severe: Severe: Severe: Severe:
wetness, , wetness, wetness, wetness,
fl000s. floods. floods. floods.
4e:
Aquolls Severe: Severe: Severe: Severe:
wetness, wetness, wetness,
floods. floods. wetness,
floods. floods.
Aquepts Severe: Severe: Severe: Severe:
wetness, wetness, wetness,
floods. wetness,
floods. floods. floods.
5, 6 Slight ,Slight
Mpe Le. Slight.
Ascalon I slope.
i
7 ,Slight Slight Ascalon g :Severe. Slight.
C Slight
Ascalon Slight Slight Slight.
9 Ascalon Slight Slight Moderate:te: Slight.
10 Severe: Moderate:
bankard lfloodt Slight.
floods. floods, floods.
too sandy.
11 Slight
bresser q Slight Slight Slight.
12 Slight
Slight Moderate:
3resser , slope. Slight.
13 Moderate: Moderate: Severe: Moderate:
Cascajo slope, slope, slope, small stones.
small stones. small stones, small stones.
14 Moderate: Moderate: Moderate: Moderate:
Colby dusty• dusty• dusty. dusty.
15, 16 Moderate: Moderate: Moderate: Moderate:
Colby dusty. dusty. slope, dusty.
dusty.
17 •- Moderate: Moderate: Severer
Colby dusty. dusty. slope. Moderate:
dust
dusty.
16st
Colby Moderate: Moderate:
dust Severe: Moderate:
Y• OuatY• elope. dusty.See footnote at end of table.
TABLE G.--RECREATIONAL DEYELOPHENT--Continued
Soil name and I Camp areas Picnic areas Playgrounds Paths and trails
map symbol
36 Slight Slight Severe: Slight.
Nelson
slope.
39 Moderate: Slight Moderate: Slight.
Munn Derca slowly. Derca slowly.
40 Moderate: Slight Moderate: Slight.
Nunn Derca slowly. peres slowly,
slope.
41 Moderate: Moderate: Moderate:. Moderate:
Nunn , Derca slowly. too clayey. peres slowly. too clayey.
42 Moderate: Moderate: Moderate: Moderate:
Nunn pores slowly. too clayey. pores slowly, I too clayey.
elope. $
43 Moderate: Moderate: Moderate: :Moderate: -
Nunn peres slowly. too sandy. pores slowly. too sandy.
44, 45 Moderate: ,Moderate: Moderate: Moderate:
Olney too sandy, too sandy, too sandy, too sandy.
dusty. dusty. slope, dusty.
dusty.
40 ,Moderate: Moderate: Moderate: Moderate:
Olney I dusty. dusty. dusty. dusty.
47, 40 $Moderate: Moderate: Moderate: Moderate:
Olney dusty. dusty. dusty, dusty.
slope.
49 Moderate: Moderate: Severn: Moderate:
Os ood too sandy. too sandy. too sandy. too sandy.
8
50 „ Slight Slight Slight Slight.
Otero
51, 52 Slight Slight Moderate: Slight.
utero slope.
53 ,Slight Slight Severe: Slight.
slope.
Otero
54 Slight Slight Slight Slight.
Paoli
55 Slight Slight Moderate: Slight.
Paoli slope.
Moderate: Moderate: Moderate: Moderate:
56too clayey.
Renohill toocs slowly, too clayey. too clayey,
too clayey. pores slowly.
Moderate: Moderate: Severe: Moderate:
57 too clayey.
non ohill percs slowly, too clayey. slope.
too clayey.
59 Moderate: Moderate: Severe: Moderate:
SS, too clayey. depth to rock. too clayey.
Shingle too clayey. Y Y•
60a:
Shingle Moderate: Moderate: Severe: Moderate:
too ate
too clayey. too clayey. slope,
yey.
depth to rook.
See footnote at end of table.
TABLE C.--RECREATIOUAL DEVELOPMENT--Continued
Soil name and Camp areas 1 Picnic Playgrounds Paths and trolls
• map symbol
600:
Renohill Moderate: Moderate: Severe: Moderatos
pens slowly, too clayey. slope. too clayey.
too clayey.
61 Moderate: Moderate: Severe: Slight.
Tassel slope. slope. depth to rock,
slope.
62 Moderates Moderate: Moderate: Moderate:
Terry dusty. dusty. dusty, dusty.
depth to rook.
63 Moderate: Moderate: Severe: Moderate:
Terry dusty. dusty. slops. dusty.
64 Moderate: Moderate: Moderate: Slight.
Thedalund dusty. dusty. slope,
depth to rock,
dusty.
65 Moderate: Moderates Severe: Slight.
Thedalund dusty. dusty. slope.
66 Moderate: Moderate: Moderate: Moderates
Ulm percs slowly, too clayey. pares slowly. too clayey.
too clayey. .
67 Moderate: Moderate: Moderate: Moderates
Ulm pens slowly, too clayey. peres slowly, too clayey.
too clayey. too clayey,
slope.
660 Severe: Severe: Severe: S t
Ustic Torriorthents s;:all stones, small stones, slope, small stones,
too sandy. too sandy. small stones, too sandy.
too sandy.
69 .. Moderate: Moderate: S : r Seven:
Valent too sandy, too sandy, too sandy. y too sandy.
dusty. dusty.
70 Moderate: Moderate: Severe: Severe:
Valent too sandy, too sandy, too sandy, too sandy.
dusty. dusty. slope.
710:
Valent Moderate: Moderate: Severe: Severe:
too sandy, too sandy. too sandy, too sandy.
dusty. dusty. slope.
Loup Severe: Severe: Severe: Severe:
wetness, wetness. wetness. wetness.
floods.
72 Moderate: Moderate: Moderate: Moderate:
Vona too sandy, too sandy, too sandy, too sandy,
dusty. dusty. dusty. dusty.
73 Moderate: Moderate: Moderate: Moderate:
Vona too sandy, too sandy, too sandy, too sandy,
dusty. dusty. slope, dusty.
dusty.
74 Moderate: Moderate: Severe: Moderates
Vona too sandy, too sandy, slope• too sandy,
dusty. dusty. dusty.
See footnote at end of table. I¢
fl
•
TABLE G.--AECAEATIONAL DEVELOPMENT--Continued
Soil name and Camp areas Pionio areas Playgrounds Paths and trails
map symbol
75 Moderate: Moderate: Moderate: Moderate:
Vona dusty, dusty. dusty. dusty.
76, 77 ,Moderate: Moderate: Moderate: Moderate:
Vona I dusty. dusty. slope, dusty.
dusty.
lb Moderate: ,Slight Moderate: Slight.
Meld Beres slowly. percs slowly.
79, B0 Moderate: Slight Moderate: Slight.
Weld perca slowly. peres slowly,
slope.
b i•:
Wiley Moderate: Moderate: Moderate: Moderate:
dusty. dusty. dusty. dusty.
Colby Moderate: Moderate: Moderate: Moderate:
dusty. dusty. dusty. dusty.
d2' 83•:
Wiley Moderate: Moderate: Moderate: Moderate:
dusty. dusty. dusty, dusty.
slope.
Colby Moderate: Moderate: Moderate: Moderate:
dusty. dusty. slope, dusty.
dusty.
• See mapping unit description for the composition and behavior of the mapping unit.
TABLE H.--ENGINEERING PROPERTIES AND CLASSIFICATIUhS WELD COUNTY - SOUTH PART
(The symbol < means leas than; > means greater than. Absence of an entry means data were not estimated3
r..____..._.__...._____._..._ __—__.�___—_-_�.—.�- ----
I I Classification !Fran- I Percentage passing I I
Soil name and Depth' USDA texture 1--------- r------- lnent3 I sieve number-- !Liquid I Plaa-
map symbol I I Unified I AASHTO I > 3 I------T------1-----1-------1 limit 1 deity
1 I I !inches' 4 I 10 40 1 200 1 I index
_--_ - -- - - - - --- - - - - - --- -
I I I I --- I 1 I
0-101Loar_ 'CL-HL IA-4 10 90-100165-100 60-95 150-75 1 20-30 5-10
Altvan 10-251C!ay loan, loan ICL i4-6, A-T: 0 95-100195-100 05-100170-60 ' 35-5G 15-25
21-601Sand and gravel :SF, SP..SMIA-1 1 0 75-95 70-90 25-35 0-10 1 --- NP
I I I I I
a: I 1 1 I I
Aquolls 0_l181Var1a ble-,__..___ - .__- .__ I __- ___ _-_ ___ .. -__ __-
40-t0lSand, gravelly _iSP, SP--"'A- 1 I 0=‘10 60-90 50••70 30-5o 0-i0 I --- AP
I sand. I I I
1 I 1 I I
Aquents 0-40 variable- I --- --,. , _..- -_- --_ --- ..-. .--- ( __-
46-60:Sand and gravel :SP, SP-S0.A-1 1 0-10 00-90 50-70 ,30-50 0-10 I --- NP
I 1 _
Aquolls _
4a: 1 I I
-- C-eo lVa efaule..____.._-1 ..._._ __ __,_ i _-- --- __. _..-. t ---
I I t I
&quests 0-601variable--------I .._e. _-- I __- -_- _-.. , ..__ ( --_ _-_
I l
5, 6, 7 U-6 Dandy loam ISM 4-2, A-4 0 95-100,90-100 70-95 25-50 ' 15-25 NP-5
-Ascalon c-lolsandy clay loam 130. CL ,A-6 0 195-100:90-100 60-100 40-55 1 20-40 , 10-20
16-boiSandy loam, Sc,I IA-4, A-6 0 95-100195-100 75-95 35-65 ; 20-40 i 5-15
sandy clay 13r1-3C, I I
loam, fine 1 CL, I I
sandy loam. CL-HL - I I 1
9 0-6 Loan SH ,A-2, A-4 0 95-100190-100,70-95 25-50 115-25 HP-5
Ascalon b-1L,Sandy clay loam SC, CL I4-6 0 95-100190-1L0160-100 40-55 1 20-4U 10-20
16-601Sancy loan, SC, A-4, A-6 0 95-100195-10G 75-95 35-65 20-40 5-15
I sandy clay SY••SC,
I loam, fine CL,
I sandy loam. CL-HL
,0 0-4 (Sandy loan S4 ,A-2, A-4 0 95-100 90-100 60-70 30-40 --- NP
Uankard 4-60:Fine sand, sand, SP-SM, SM 4-2, , 0-5 70-100,60-100 40-70 5-25 --- NP
gravelly sand. A-3, I ,
A-1 I 1
I I
.1, 12 0-16 Sandy lost SM A-1, A-2 0 95-100:75-100135-50 20-35 15-25 UP'S
Greaser 16-25 Sandy clay loan SC A-2, 0 95-100 15-100150-70 30-50 , 30-55 10-25
A-6,
A-7
25-30 Sandy loan, SC, SH-SC A-2, A-1 0 90-100 60-100 30-60 20-30 25-35 5-15
coarse sandy
, loam, gravelly ,
sandy loam.
30-60 Loany coarse ,SP-SC A-2. A-1 0-5 60-100 35-05 20-50 5-10 20-30 5-10
sand, gravelly 1
loamy sand, I
very gravelly 1
loamy sand.
3 0-9 Gravelly sandy GM A--1, A-2 0-15 50-65 50-60 15-40 10.35 --- NP
Cascajo loss.
9-31,Vcry gravelly 6Y-GM, A-1 0-15 15-50 15-50 5-30 0-20 --- NP
I sandy loam, CP, GM
I very gravelly
I loamy ssnd,
very Gravelly
onnd.
31..60 trey gravelly 11'P. SP. A_.+ 0-95 10-60 10-60 5-30 0-10 --- NP
loamy sand. 1 CS'--6H,
eery gravelly 1 SP-561
rand, travail/ 1
sand. I 1
9 1
See footnote at. .. . . _
l :aLE H.--f UGINEERING PROPERTIES A:10 CLAS:i1FICATiON_;--Continued
Percentage ,.`
passing i
__— I I CiansiflceLlon IFraa- I sieve number-- '' ld�id Plea..
--Ioents 1 number limit Plea..
Sol; none and IQePir:i USDA texture 1 Unified T AASHTO I > 3 1------T-----.1------T------
' 40 200 indet
map symbol ty
I I `.�r I Iincnenl 4 10
_�_pct.__3.�.�—r•---- ---S'_-g`c_�—T--------
I 100 TCO g0-100 d5-100 25-30 5-10
14, 15, 16, 17 I 0-7 Loam------------ICt.-HL A-4 0
Colby 17-60 :lilt loan, loam,ICL-ML 1-4 0 100 100 90-100 35-100 25-30 5-10
very fine aandyl
loam. I
18": 5-10
Colby 0-7 Loam 101.-ML A-4 0 100 100 90-100 35-103 25-30 5-10
7-60 Silt load, loam,ICL-HL ,A-4 0 100 100 90-10c 65-100, 25-30
•
very fine sandy' I
loan. I
I 0 100 100 9C-100 70-90 2L`
1 -30 UP-5L-6 Loam Ir.L 'A-� 100 90-100,70-90 i 35-60 15-35
Adena---•- 6-9 Clay, clay loam,ICO, CL IA-6, A-7 0 100
silt' clay I I
loam. I 1 0 lOR iCa 90-100 75-90 20-30 N?-59-1.0 loam, silt loam,10L 1 A-A
• very fine sandyI I
loam. 1 I j
I,-L .u. l� -4 I 0 95-toa.GO-100.75-9c 50-T� c"5-3U 5-10
19, 20--.....--.........-..., 0-14 Clay loa:,- --..-I. u 95-100175--100.75-9C 5'0-70 20-30 10-15
Colombo 1-'- :.Iuy loan, lc.►1 ICf. 1R-c ,
r• 1R , 0u 90-100175-1UCI70-9C So-60 , 20-36 5-15
et.. .. .. ._..i!]r� _mil l ... ,,. I 1
i 13ara to sund. f
I1 I
- 1 .4 U I95-300175-1C0I75-9; l0. oti 20-40 5-20
I
CL-hi. I ' 50-05 35-4: 17-20
Daco:o I A c, 1•.7 0 75-100160-100 55-95
1?-.y,il�Jay loan. clay. LL• I
I gravelly clay 1
I loam. 0 75-100;60-100 50-95 40-55 25-40 10-20
e1• 716andy clay loam. ..L- 5i.
I loan, silt
I loam' 0 35-EO 5-3a 5-40 0-5 --- NP
,27-601Acry gravelly 2V, :F A-
I sand.
�, 0 95-100 90-100 65-100 50-65 , 25-30 5-10
4.3. 29 7-1 !Loam `::,'::L A-6 0 95-10iJ,90-100 oS-95 160-75 25-40 15-25
tort Collins -_ 7-10I Loaam. fine sane CL 190-100 60-95 I50-75 25-35 5-15
11-i,,�ll.oax. fine sandy CL, CI.-H1 A-4, A-6 0 95-100l
i luau. I NP-10, ML, CL-rtL A.4 0 95-100100-100 7i-90 50-60 20-30 NP-10
25, e26t "`"_ 0-` Emma HL, CL-*L A-4 a 95-100175-100 75-90 50-60 20-30
liayson 4-cG �`ratlfied clay
loan to sand.
0 95-100 95-100,95-100 75-95 45-55 25-35
27, <<
0-60 Silty clay CM, CL A-7 I
heldt I ---
29. 30 2- 2 lane
loam
• SH, MLL 1-2, A-4 0 95-100 75-100145-a5 25-55 LAPPS
Ju.icyr,urr 12-227, xrc sandy :.,loam, .;, ML A-2, A-4 0 95-i0U,75-100;50-u5 3U-55 . 15M2
sandy loam. 0 95-100 75-100 40-85 15-50 NP
27-60 Sandy loam, SH A•-2,
loamy sand, , A-4,
I A-1
fine sand. I _
is0-100 75-100 60-90 45-75 20-35 NP 05 25-40 1
31, 32, 33. 34---- 2-12,Lcan L, CL IA-4 0-5 _
Lim 12-4U Loam, clay loam CL, CL••:::.{A-4, A•t 0-5 d00-100 75-100 70-95 40-55 20-30 NP-55
40-u0 Fine sandy loam 5H, 11L Lm-4 0-5
35.1 100 100 50-100 15-30 NP
0-16 Loamy sand- .,tl -_ 0
Loup0 100 100 ,65-100 5-20 NP
ti,-b0 Loamy nand, sand ::Y-Jti, 54 A-l. A-3
0 100 100 d5-95 20-35 --- NP
P
0-14 Loamy sans SM 1-2 a5-95 0-25 --- NP
$orlti Si, 1-2, A-3 0 100 100
14-60 Fine sand, loamy . ,
fine sand, SP-:ic1
coarse sand.
3mi ci ctt CA-1 0 100 100 90-100 80-95 455-60 20-35
midway 3 f..latne-..-.-......-- -- I --- ---
13 reatn�rrr.•f
t
,
s—e fvOtrr:.f .: ,
TANLE H.--ENGSNEEfl NG PRUY CI111La AM/
..
I-- _ Clasen l flca_tton Frao Percentage passing I
cents __ sieve_numocr-- {Liquid Plas-
5oi1 name and Depth' USDA texture d �_ j-----7--I limit ticity
map symbol ; Unified AASIITO > 3 T index
inches 4 10 I 40 { 200 T--pc�{---
;642 0-6 $I I I
Loan CL-ML A-tl D-5 75-100 TS-100170-9`5 155-75 25-35 S-10
Shingle 6-18IClay loam, loam CL A-6 0 75-100,75-t0016S_10015U--U0 30-40 10-20
1b :Unweathered -- --- -- -- I — I I
{ bedrock. I I 1
I -- HP
37 38 0-9 Vine sandy loan HL, SM A-4 0-5 75-103175-100:70-90 145-60 --- HP
Nelson 9-30{Fine sandy loan, Sn, AL A-4, A-2 0 75-100 75-100:60-d5 130-55
Isandy loam. --- -_' "- I --- I -" --I 4.
30 I,leathered --
{ bedrock. - I 1
7 145-75 25-40 10-20
:Loan ,CL, Sc A-6 0-5 95-100 60-95 170-95'5. 40 0-9
Nunn 9-29 Clay loan, clay CL, CH A-6, A-7, 0-5 95-100,90-100Iy5-95 165-7i 15-60 75 35-60 20-35
5
1 0-5 o0-100:60-10016u'-90 25-
29-60 Clay loam, loam, CC, A-4, I 1
sandy loam. 3L-HL, A-6,
eN-SL, A-2 1
SC
11 u2 0-9 Clay loam CL, SC A-6
0-5 95-100 50-95 70-95 ,45-75 , 25-40 10-20
Nunn
9-29 Clay loan, clay CL, CH A-6, A-7 U-5 ,95-100,50-100 05-75 6S-15 35-60 20-35
- 29-60 Clay loam, loam, CL, A-4, 0-5 60-1C0:6d-iC0 60-90 2S-75 15-40 5-20
sandy loan. CL-ML. A ' I
SA-SC, A-2 I
SC I
NP
43 0-9 Loamy sand SA A-2, A-4 0-5 95-100120-95 ,60-60 20-30 ---
S-30 Clay loan, clay CL, CH A-b, A-7, 0-5 95-:00190-100165-95 65-75 , 35-60 , 20-35
Nunn A-4, 0-5 'dC-100 60-100 60-90 25-75 15-40 5-20
3U-60 Clay loam, loam, CC, _
sandy loam. 5H--S �
C, A-2
SC
0 95-100 90-100 60-90 15-25 ---
tI P
Y4, e7 0_10 Loamy clad S'1 A-2 0 95-100 90-100,L0-100,40-55 2U-40 10-20
Olney i-25 Sandy clay loam SC, CL A-6
,22L-25 Sandy loam, SC, A-a, A-b 0 95-100 95-10C 75-95 35-55 20-35 , 5-
15
I sandy clay SA-SC,
I loam, fine CL, I
I sandy loam. CL-HL 0 95-100,95-100 70-95 10_35 { HP
125-0U Fine sandy loam, 514 A-2 --
I loamy fine
I sand.
A-2 0 95-100 90-100 70-95 20-35 15-25 hP-S 4746, ey Sandy c46 0-20:Lard sandy loan SM 0 95-100 90-100 oC-100 40-55 20-40 10-20
ulney 20-2 Sandy load,oaloam CL ,A-6
20-23 SC, G-u, A_6 0 95-100 95-100 75-95 35-55 , 20-35 5-15
sandy clay Sy-SC,
loam, fine CL,
sandy loam. CL-ML
25-60 Fine candy loam, SH A-2 0 95-100 95-100 70-95 20-35 ---
NP
loamy fine
sand.
0 100 100 65-80 15-30 --- 11?
L-32 Sand SA A-2 100 100 60-LO 30-40 --- SP
49 34-34 Loamy loam ,LA A-2, A-Y 0 NP
usEood � G 100 95-100,54-75 10-25
34-6U Loamy sand, sand Sv 1A-2 HP
0-12 Sandy loam SA IA-2 0-1 95-100 75-100 50-60 20-35 ------ NP
50, 51, 52, 53A-1 0-1 90-100 50-100 40-60 20-35
Otero 12-60 Ss n6y loam, fine SA A-2,
sandy loan,
gravelly sandy
loam. NP-5
55 0-20,Loam HL A-4 0 95-100 90-100 75-95 55-75 25-35
5P,Paoli 20-25IFine sandy loan, 5M A-4 0 80-100 50-100 60-65 35-50 --- HP
I sandy loam. A-2, A-tl 0 75-100 75-100 55-65 30-50
--- HP
25-LO:FSnr sandy loam, SA
I sandy loan.
See footnote at end of table.
TABLE H.--ENGINEERING PROPERTIES AND CLASSIFICATIONS--Continued
---- ---i— I 1 Classification Itra1- Percentage passing 1 1
Soil name and Depthl USDA texture I T r ___(cents -------T------T------T------I sievenumber-- (Liquid I Pins-
cap symbol 1 1 Unified I AASNTO I > 3 limit I ticlty
1 I I tin-,ees 4 I 10 I 40 1200 I I index
-- 'T"Tn-1.-.—_—_r_r —r»_o-?ca- _'_f---7•----T--- T—PooC--T..
1 I I I 1 I —
56, 57 U-9 :Clay loam CL IA-6 : 0 65-100160-10010-95 :70-60 25-40 10-20
kenohill 9-32 Clay, clay loan CL, CH A-7, A-6 C 55-100130-100190-100175-95 35-65 20-35
32 Weathered --- --' __- -- { --- 1 --- I --- --- ---
bedrock. 1 1 1
1 I 1
56, 59 0-6 Loam CL-ML A-4 0-5 75-100175-100170-95 155-75 25-35 5-10
Shingle 6-16 Clay loan, loam CL A-6 0 75-100 75-100165-10015U-30 30-40 10-20
16 Unweatnered --- . --- --- --- --- i --- ---
bedrock. 1
60a: 1
Shingle 0-b ;Loam ,CL-ML A-4 0-5 75-10C 75-100170-95 55.75 25-35 5-10
6-1b:Clay loam. loam CL A-6 0 75-100,75-10C:65-100 50-60 30-40 10-20
1 10 (Unweathered --- --- ^- I --- 1 --- -- --- ---
1 { bedrock. 1 1
henohill 1 C-9 (Clay loan CL A-6 0 ,65-100100-150100-95 ,70-00 25-40 10-20
19-321C1ay, clay loam CL, CH A-7, A-6, 0 195-100 90-100:90-100175-95 35-c5 20-35
{ 32 :Weathered --- -- ' --- { --- --- 1 --- 1 __- --- ---
: 1 bedrock. 3 I I
1 -
67 0-11f Fine san4 loam ML, SM A-4 0 195-100 9• 100{7U-95 40-65 20-35 8Y-5
tassel 11 bnweathered -- , -- --- : --- -- : --- -- --- ---
bedrock. 1 1
62, 63 0-6 Pine sandy loam SA, ML A-2, A-4 C-5 175-100 75-100170-90 30-60 --- hP
Terry 0-16 Fine sandy loam, SM, ML A-4 0 :75-100 75-100170-05 40-6U NP
sandy loam. 1
16-37,Fine sandy loam, SM A-2, A-4 0-5 75-100 75-100:70-65 25-50 --- HP
i sandy loam,
I loamy fine
I sand.
37 (Weathered --- -- --- --- -- -- --- --- ---
bedrock.
04, 65 0-8 Loam CL-ML A-4 0-5 30-100,75-100 70-95 50-75 20-30 5-10
Shedalund 40-60 25-35 5-15
6-25 Clay loam, loam, CL-ML, A-6, A-4: 0-5 80-100 75-100 70-95
very fine sandy CL,
loam. SM-SC,
SC
25 Weathered --- -- --- --- --- --- --- --- ---
bedrock.
66, 67 C-5 Clay loan CL A-6 0-5 95-100,95-100 80-100 70-80 30-40 10-15
Uln , 5-19 Clay loan, clay CL A-o, A-7, 0-5 75-100 75-100,75-100 60-60 35-45 20-30
19-LO Clay loom CL A-6 0-5 75-100 75-100175-100 60-60 30-40 15-20
Cc* 0-60 Variable -- -- --- --- -- -- --- --- ---
astir
Torriorthents
69, 7C 0-8 Fine sand 511 A-2 0 100 100 ,60-95 10-30 --- NP
Valent , 0-60 Fine sand, sand SP-SM, SM A-2, A-3 0 100 95-100 75-90 5-20 NP
71A:
Valert 0-6 Fine sand------- 3M, A-2 0 100 100 80-95 10-30 --- NP
0-60 Fine cane!, sand SP-SM, SM A-2, A-3 0 100 95-100 75-90 5-20 --- NP
Loup 0-iL Loary sand IaH A-2 0 100 100 50-100 15-30 --- NP
16=60 Fine sand, loamylsP-SM, SM A-2, A-3 0 100 100 65-100 5-20 --- NP
sand, sand. I
1
See footnote at end of table.
TABLE H.--ENGINEERING PROPERTIES AND CLASSIFICATIONS--Continued •
I —(— Clasaif lcatlon frag- I Percentage paasing
:Soil name and Depthl USDA texture 1_ -----1-------- cents I sieve number---- -- `__{Liquid Piaa-
map symbol I I Unified AASHTO > 3 1 T --T -T- 1 limit tieity
I I inches 4 I 10 I 40 1200 I index
--------1-Iii--1 T
T _--T—_ pct--- --1---T— --'---T--y_C T-----
72. 73, 74--------- 0-6 ILoaay sand SH A-2 0 100 90-100160-90 115-30 --- NP
Vona 6-28IFihe sandy loan, SM A-2, A-4 0 100 90-100160-90 130-45 --- NP
I sandy loam. I I
2H-601Sandy loam, SH A-2 0 100 90-100150-05 115-30 --- NP
I loamy sand. I I
I
75, 76. 77 0-b ISandy loam SH A-2, A-4 0 100 90-100160-90 130-45 --- MP
Vona 6-261Fine sandy loam, SA A-2, A-4 0 100 90-100:60-90 130-45 -- NP
I sandy loam. I I
20-00:Sandy loaa. SA A-2 0 100 go-100;50-85 115-30 -- NP
I loamy sand. I I
I I I
76, 79. 60 0-d ILoan ML, A-4 0 100 95-10015-100160-65 20-30 NP-10
field I CL-ML I I
d-151Silty clay loan, CL ,A-6, A-7 0 100 , 100 195-100Ia5-95 35-50 15-30
I silty cley. I I
15-601Silt loam, lam CL-ML, CL A-4, A-6 0 100 195-100 05-100160-d5 20-35 5-15
I I I
ale, a21, b3': I I I
Miley , 0-111Silt loam- CL_ML, Cl. A-4, A-6 0 100 100 90-100170-90 25-35 , 5-15
11-601Silty clay loam, ,CL CL A-d 0 100 100 90-100170-95 , 25-35 10-20
I silt loan. I
I I I I
Colby 0-7 1Loan ICL-HL A-4 0 100 100 90-100I45-1JO1 25-30 5-10
7-601S1lt loan, loam 'CL-ML A-4 0 100 100 ,90-100165-1001 25-30 5-10
I I
I See mapping unit description for the composition and behavior of the mapping unit.
TABLE J.--PHISICAL A1.0 CHEMICAL PROPERTIES OF SOILS WELD COUNTY - SOUTH PART
ce actor (T)ice ayobol
profile. mAbsences of tans ceans
data r were n not7he availablen or werenot estimated)
is for the entire
estimated]
-----_ I , 1 1 I :-1 Kist of corrosion 1 Erosion''aind Soil name and [Depth: Perugia- Available{ Soil Salinity1 'Uncoated {Concrete { T---IbSlily
rink- I f-- -I factorslerodi-
map aYnDol 1 1 ➢111 ty water 'reaction Iq--e_
capacity I I swell lel 1 steel I 1 f, I T { Mau
—TIn T ,�7nF--r_Tn7__Tn_I--F+'�—Tlfd______T . I 1
1 ; - -- -- Nod eretc {Lou 10.24 3 5
2 1 C-tel 0.6-2.0 0.20-0.241 6.6-7.8 --" Moderate Inrd ra tr ILow 0.2c
Altvan 110-251 0.6-2.0 0.15-0.17' 7.4-3.4 <2
25-601 >20 0.02-0.04 7.4-9.0 <2 Low I:!oderate ;Low 10.10
1 I 1 I
Squalls 0-461 -
- --- {iii a^n 1'Soenrate ,--- _- --_
-__ 4 _
4tl-6d{ >20 0.04-0.06 7.4-8.4 2-16 Low
I 1 1
0-481 --- _- _ I I
A 4uenis 48-001 >20 0.04-0.06 7.4-8.4 I 2-16 Low High (Moderate I---
I 1 1 1 1 1
,e; . .---__-- 1---
Squalls 0-601 --- "-- --- ' --- { I 1
1 I i
I I--- I
A4uepts 0-601 ___ -- —_ 1 1 1
1, 6, 7, 6. 9 0-9 1 0.6-6.0 0.11-0.16 6.6-7.6 <2 Low ILow :Low 10.17 5 { 3
Ascalon 6-1c1 0.6-2.0 ,0.13-0.05, 6.6-7.6 <2 Moderate {Moderate ;Low '0.24 1
16-601 0.6-6.0 '0.11-0.15 7.9-8.4 <2 Low (Moderato ;Low 10.24 1
1 1
10.10 5 1 3
13 4-4 1 2.0-6.0 0.05-0.12 7.4-8.4 <2 1 Low {Moderate 1Low 0.10
banka r0 4-6 01 6.0-20 10.05-0.03 ?.4-6.4 , <2 Low ;Moderate ;Low ;'
I I Low 100'N ;Low 10.101 5 2
11, 12 , 0-161 0.6-6.0 1 .11-0.13, 6. 1-7.3 Low {Moderate ILow 10.151
Presser 116-251 3.6-2.0 100.15-0.131 6.6-7.3 --_
Loa ;Low ILow 10.101
125-301 10.05-0.081 6.6-7.3 10.101
— ILOw ;Law ILow 1 1
1j0-691 2.0-20 ;0.05-0.08; 6.6-7.3 -- 1 1 1
1 'Moderate Low 10.101 5 8
ij
1 0-9 2.0-6.C ;0.07-.0.091 7.4-6.4 <2 1Low I
Cascajo 1 9-31- 6.0-20 10.0 -0.061 7.4-6.4 <2 ;Low {Moderate Low --10.101
Moderate Low 16.101
131-tC 6.0-20 ;O.C:-0.06; 7,4-8.4 <2 ILow 1
{ {Moderate I to+------10.771 S AL
1%, 15, 16, 17.... •--I .-1 , C 6-2.0 10.2-C 4"I 0.0-6.4 <2 ILow .._.Moderate Loy....--_..10.371
Colby 1 7 --6111 0.6-2.0 ,0.17-0.421 7."-8.4 <2 ;Low i I {
1 1 I I I {
Ica: 1 I 1 40
._.. .__,„ 1 2.n w 2u 2+1 6 6..6.4 (2 Low__-. IModeraty Lod_,. --..10.371 5
Colby ' 0 6 --
7_(i,; 0.6-2.G 10.17-0.2 7.4-6 4 Q Low
:Moderate to Low.. - -_{0.37;
10.37; 5
Sauna •-- 0.6 19.0-2.0 10.1^.-0 211 0.C-/.0 <2 Low {moderate Low------10.24
(=9 16.0U-0.2 10.1E-0. 161 0.6-7.C <2 high
A-61 0.0-2.0 10.16-0.161 7 .4-8.4 <2 Low 11,10. 'Low------10.32
1 1 1 181 Er_- .L, _.. .._10.32 5 5
19, 00 ,- ,9I 0.6-2.0 10.14-C. 18157 .4-3.4 <2 Low
i4 - 14 C 1 1 7..4-701 <2 Moderate (high-- o..--- —10.28
Cel 36-63 `1 C L .r, Iiagh ILow 10.28
. ,.6.;, 0.6-2.0 10.14-0.101i 7 ."-6.4 <2 Lew 1 1
I13.24 3 5
1 <2 Moderate 'Moderate to 'Low 10.24
21, 22 2.211 0.2-0.6 '5.15-0,211 7.6-7.6
122-271 0.2-2.0 ;0.13-3.1 d 7.4_0.4 <2 ,High IhirO ;Low
Oa cOno 0,2_2,0 0.13-O.L,' ;.4-�..4 <2 moderate ':i1 c.1 ;Low 10.15
121-001 ow 10.10
2T-601 >20 0.03-0,051 7,4-•6.4 <2 ;Lou ;ml F.n IL 1
23, 24 0-7 1 0.6-2.0 0.16-0 201 6.0-1 ,0 <2 'Low IHoderato 1Low
10.20 5 6
Fort Collins 7-111 0.0-2.0 0.16-0.101 7.4 7.4 <2 (Moderate {moderate {Low 10.20
Low :0.20
11-601 0.6-2.0 ,0.iu-0.1 ; ; I 1
0-4 11 0.6-2.0 0.11-0.161 6.6-6.4 <3 Low (High ILow 10.20 5 4L
25, e26r 4-601 0.6-2.0 0.14-0.101 7.4-8.4 <0 Low IMign Low 10.20
tla rarson 1 1 I
27, 28 0-6010.06-0.6 U.12-0.171 7.9-9.0 <8 High (High 'High 10.20 5 4
He ldt 1 1 I
See footnote at end of table.
TABLE J.--PHtSICAL AND CHEMICAL PROPERTIES OF 50IL3--Continued
I 1 I nlnk of corrosi_n_n__ Eroalon and
• Soil name and Depth: Formes- Availablol Soil 5allnityl Shrink- --T - : factors erodl-
mp syobol I blItty water Ire/action t swell Uncoated (Concrete I- r 0111ty
I capacity I Ipotential steel I : E T group
TIn T`I 1IiF T n710 Tp:,'--1 nfo�TcaT— I I
1 _ - - 1 1
29, 30 0-121 2.0-20 0.11-0.151 6.6-7.8 <2 :Lou----- Moderato ILow------10.24 5 3
Julestura 12-271 2.U-20 6.11-6.151 6.6-7.8 <2 (Low------ Moderate (Lou------l0.24
27-601 >6.0 0.05-0.131 6.6-7.8 <2 :Lou------ aoderate !Lou 10.20
I I i
t I
31, 32, 33, 34 0-121 0.6-2.0 0.16-0.161 7.9-8.4 <2 :Low iNtIderate 1Low-----10.32 5 4L
Kin 12-601 0.6-2.0 0.15-0.171 7.9-6.4 <2 li.uw !Moderate !Lou-----10.32
I : 1 1 : :
35*: I Loup 0-161 6.0-20 C.10-0.141 6.6-8.4 <2 :Low-----IHith 1Low 10.17 5 2
16-601 0.0-20 0.06-0.031 7.4-6.4 <2 ILcw------Ini4h (Law-----10.17 ,
I 1 I I I 1
noel 0-141 6.0-20 ,C.10-0.121 6.6-8.4 <2 :Low------$High----ILow----10.17 5 2
14-601 6.0-26 0.05-0.071 u.6-8.4 <2 ILow------!!ti;h-----:Low----10.17
I : I 1
364; I I 1 I
Midway 0-13 0.06-0.2 0.12-0.17 7.9-9.0 2-8 :d1Ch-----I!figh----$Lou----10.43 1 4
13 --- --- -•_ -- 1----- 1---------I--
I
SnlnCle 0-6 0.6-2.0 0.16-0.15 7.4-9.0 <2 :Lou I,lgh (Lo 10.32 2 I 4L
1
{
6--18 0.6-2.0 0.16-0.21 7.9-9,0 <2 (Moderate dien----;Low :0.49
1 18 -- --- -- I -_---_�-I—_
t I 1 1 :
37, 36 1 0-9 2.0-6.0 0.13-0.15 7.9-8.4 <2 (Low------:M1,in (Lou-----10.20 2 3
Nelson 9-30, 2.0-6.0 ,0.11-0.13 7.9-0.4 <2 (Low :ni;:n ILo-w------10.20
30 -__ I -- --- -- 1 : I--------:--- ,
I { I I 1 I
39, 40, 41, 42 0-9 0.2-2.C 10.15-0.20: 6.6-7.8 <2 (Moderate !Moderate :Lou-----10.24 5 6
Nunn 9-29 0.06-0.6 :0.15-0.101 7.4-0.4 <2 !Itch----:kiln :Lou----(0.26
29-60 0.2-2.0 0.10-0.161 7.4-6.4 C2 laoderate 1SEh :Low 10.24
: I I 1
43 0-•9 2.0-6.0 0.10.0,141 6.6-7.6 <2 :Lew--------IMcderate ILo.------10.15 5 , 3
hunn 9-29,0.06--0.6 0.15-0.15: 7.4-d.4 <2 :�izt 'Mi.t fLow------ 0.20 I
29-60 0.2-2.0 0.10-0,16: 7.4-8.4 <2 Moderate ICI,' (Low-----10.24 1
1 1 I 1 I
44, 45 i 0'1C 6.0-20 C.00-•0. 101 6.6-7..0 , <2 Low Lou Lou---- - 0.17 5 1 2
clney i10--2C 0.6-2.0 0.13-0.15: 6.6-7.3 <2 acderate Ihi gn ,t.0w------10.24
A 120-=25 0.6-6.0 0.11-0.151 7.9-6.4 <2 Low-------1! icr. 11.o: -10.24
:25--00 2,0-6,0 ,0.06.0.131 7.9.0.4 <2 CO In1c,a :Low- ---10.20
46, 47. 40 0--10 6.6-6.0 0.11-6.151 6.6-7.6 <2 Lou ;Moderate ILOu-------10.20 5 3
Olney 110-.0 0.6-2,L 0.13-0.151 6,6-7.6 <2 Moderate 'hIgn-----.1low :0.24
120-25. 0.6-6.0 0.11--0.151 7.9-5.4 I <2 Lou li:!gh-----•I Low-----•-10.24
:25-6u1 2.0-6.0 0.06-0.13: 7.9-6.4 I <2 :Low 1l!1gr. 'Low 10.20
I I f
45 6-•221 6,0-20 0.05-0.Ca1 6.6-7.3 1 -- Low------(Low :Lou 10.10, 5 1
- Osgood 22- 34: 2.0-6.0 ,0.1C-0.13: 6.6-7.3 --- Low :Low 'Low 10.171
34-601 6.0-20 0.06-0.00 6.6-6.4 <2 Lcw ;Moderate :Low 16.101
50, 51, 52, 53 0-121 6.6-20 0.09-0,17 7.4-8.4 <2 Low 1iii;h :Low------!0.101 5 2
Otero 12-601 6.0-2C 0.CJ-0.12 7.4--6.4 <4 Low------1:iigh ILow '0.10:
54, 55 0-20: 0.0-2.0 0.16-0.16 6.6-7.3 -- Low------!Moderate (Low 10.20 5 5
Peo11 2C-25 >6.0 0.14-0.17 7.4-7.8 <2 Low (Kier. (Low 10.20
25-60 >6.0 0.12-0.14 7.4-L.4 , <2 Low IIL2h----ILOw-----:0.20
1 1 1
56, 57 C-9 0.2-0.6 0.17-0.21 6.6-7.8 <2 Moderate IHign ILou 10.37 3 6
Ren.ohill 9-32 0.06-0.2 ,0.14-0.16 6.6-8.4 <2 High IHirh ILou------'0.32
32 --- --- --- --- 1 1--
1 1 I
5L, 59 0-6 0.6-2.0 0.16-0.16 7.4-9.0 <2 Low 'filch :Low 10.32 2 46
Shingle 6-16 0.6-2.0 0.16-0.21 7.5-9.0 <2 Moderate Ii,i,-,n !Low 10.49
16 --- --- --- --- 1 : 1--
I I I
604: I I I
Shingle 0-6 0.6-2.0 0.16-0.18 7.4-9.0 <2 Low 1111;h !Lou- ---10.32 2 41
6-1U 0.6-2.0 0.16-0.21 7.9-9.0 <2 Moderate (High ILou 10.49
10 --- --- -- --- 1 1-_-'--__-:---
1 I I
See footnote at end of table. •
•
TAbLE .1.--PHYSICAL AND CHaFICAL PROPERTIES OF SOILS--Continued _
I 1 ---1 I I--------1 hlek of corrosion 1 troaSOn Wind
Soil none and IDcpthI ?crape- Available Soil 'Salinity' Shrink-arell :Uncoated
factors erodi-
map d !Concrete 1-- -T o111ty
symbol I I bility water reaction I I r
'potential l steel 1 IK ! Troup__• T-In—T� n71ir I TcaI_7'.nY-T 3R—.".'._m_h i ee_c_T _- -T---------T T' I
I I I I
GO': 1 I I
henohill 0-9 0.2-0.6 0.17-0.21 6.6-7.8 <2 'Moderate !Hier. ILow 10.371 3 6
9-32 0.06-0.2 0.14-0.16 6.6-0.4 <2 :High Lilian ILow :0.321
32 --- --- --- I I I----'_"-1"' I
61 0-11 2.0-6.0 0.16-0.13 7.4-9.4 <2 'Low !High ILow 10.24: 1 3
Tassel 11 -'- --- `- _- I
I I I
62, 63 , 0-6 2.0-6.0 0.13-0.15 7.0-7.8 <2 ILow 'Moderate ILow 10.20 2 3
Terry 6-1d 2.0-6.C 0.13-0.15, 7.0-7.0 <2 'Low IMcderate ILow 10.20
10-37 2.0-6.0 0.13-0.15! 7.9-0.4 <2 ;Low !high ILow 10.20
37 --- --- -- --- I 1
4L
64, 65 0-6 0.6-2.0 0.16-0.10: 7.9-8.4 <2 Low IHten 1 Low 10.32 2
Tnedalund 9-25 0.6-2.0 ,0.16-0.18 7.9-d.4 <2 Low !High :Low 10.32
25 --- --- --' --- 1 I I
66, 67 , 0..5 0.6-2.0 0.16-0.18 7.6-8.4 ---
Low 'High Low :0.32 5 6
u1n 9-19 c0.6-2.z 0.19-0.21 7.4_8.4 <2 highMode 1Hign 00 10.37
19-00 0.6-2.0 0.19-0.21 7.9-6.4 <2 moderato ;high ILow 10.37
tGa 0-60 -_- --- "— -_— I I I-_-
I
USt1e I
Torriorihenta 1 1 I
69. 70 0-8 6.0-20 0.05-0.10 6.6-7.3 -<2 ,Low ILow ILow 10.10 5 1
V alenent , 8-50 6.0-20 0.05-0.10 6.6-7.8 <2 ILow :Lop ILow I0.10I
I I I 1 I
a ---
7 s Valent 0-6 1 6.0-20 0.05-0.12, 6.6-7.3 ILow :Low ILow 10.10: 5
6-601 6.0-20 0.05-0.16 6.6-7.8 <2 !Low !Lou ILow I
I
Loup
0-161 6.0-20 0.10-0.14 6.G-8.G <2 Lou IBirtq ILow '0.17 5 2
16-60 6.0-20 0.06-C.Cb 7.4-6.Y <2 Lou 111_gh 'Lou 10.17
I
7'oon 74 6-28 6.0-20 ,0. 2-0.14 6.6-7.3 ---
Low ILow ILow 10.10 5 2
Vona 2. b-2d 2.0-6.0 0.12-0.14 6.6-0.Y C4 Low :nigh :Lou 10.10,
2S-60 6.0-20 0.OG-0.11, 7.4-8.4 <4 Low !nigh ILow 10.10
75, 76, 77 0-6 2.0-6.0 0.11-6.131 6.6-7.3 --- Low ILow ILow 10.10 5 3
Vona 6-2o 2.0-6.0 0.12-C.141 6.6-6.4 <4 Low liitch :Lc" :0.10
28-bG, 6.0-20 0.0.4-3.111 T.4-6.4 <4 Low 1iil eh I Lou '10.10
7w, 79, cO --- G-6 10.6-2.0 0.16-0.211 6.6-7.3 <2 Low ILcw ILow '0.32 5
keli , 0••15;0.06-0.2 0.19-0.211 6.6-7.6 <2 High IHcdcrate ILow 10.26,
115-601 0.6-2.0 0.16-0.21' 7.4-8.4 <2 ,Low 1111OILow 10.261
61', 62k, 83'; I I I I
I
I I 4L
I G-111 0.6-2.0 0.19-0.21 7.4-7.8 <2 ILow. (High 'Low 10.37 5
U L`ey iii-601 0.6-2.0 0.19-0.21 7.9-8.4 <2 'noon-ate 'High ILow 10.37
1 I I I I I
Colby I 0-7 I 0.6-2.0 0.20-0.24 7.4-8.4 <2 ILow !Moderate ILow 10.37 5 4L
17-LOi 0.6-2.0 0.17-0.22 7.4-b.Y <2 1Lou !Moderate_-- 1Lov 10.37
I. - L^__
_
1 See napping unit description for the composition and behavior of the napping unit.
TABLE K.--SOIL AND WATER FEATURES WELD COUNTY - SOUTH PART
[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]
I Flooding High water_table : Bedrock I
Soil name and Hydro- I Potential
map symbol logic Frequency Duration Months Depth I Kind Ittontha IDepth Hard- I frost
I Iness , action
group FM In•
1, 2 B Hone -- --- >6.0 --- I --- >60 --- iModerate.
Altvan I
3': 1 I
Aquolls U Frequent---- Brief Apr-Jun 0.5-1.0 ApparentlApr-Jun, >60 --- High.
I I
Aquents D ,Frequent----,Brief Apr-Jun 0.5-1.0,Apparent Apr-Jun: >60 --- IHigh.
j 1 I 1
4': 1 I I
Aquolls D 'Frequent---- Brief Apr-Jun 0.5-1.5:Apparent Apr-Jun: >60 --- IHigh.
Aquepts , D :Frequent---- brief Apr-Jun,0.5-1.51Apparent Apr-Jun' >60 --- 'High.
I I I 1 I
5, 6. 7, 8, 9 I B ''lone --- --- >6.0 1 --- -- i >60 --- Moderate.
Ascalon I 1
1
iC I A 'Frequent----,Brief Mar-Jun >6.0 I --- , -- >60 --- Low.
tankard
I
11, 12 : B None --- -- >6.0 --- -- >60 -- ;Moderate.
Greaser I
13 ♦ None -- -- >6.0 --- -- >60 --- 'Low.
Cascajo
14, 15, 16, 17---- 8 ,None - __- --- >6.0 --- --- >60 --- Low.
Colby
1b': I
Colby B :None , --- --- >6.0 --- --- >60 --- Low.
Adena , C None --- --- >6.0 --- --- >60 --- Low.
19, 20 I 0 Rare --- --- >6.0 --- --- >60 --- Moderate.
Colombo
-- --- >6.0 --- --- >60 --- Low.
Dacono
23, 24 _..l N ,Hone to rare _-.. _..- , >6.0 --- --
>60 --- Low.
Fort Collins
25, 26 13 '.hare to ,brief----- May-Sep >6.6 , -- --- >60 --- Low.
,iaverson : common..
_-_ >6.0 --- --- >6b --- Low.
veldt
__,- >6.0 --- --- >60 --- Moderate.
29, 30 -•--•- A None--- I ---Julesburg : t
31, 32, 33, 34--_.. 0 Hone-- _-•- .--- >6.0 -__ --- >60 ___ Lou.
Kim
35':
Loup D Rare to Grief Mar-Jun +.5-1.5 Apparent Nov-May >60 --- Moderate.
common.
Goel A Occasional brief Mar-Jun 1.5-3.5 Apparent Nov-Hay >60 --- Moderate.
36':
Midway U None --- --- >6.0 --- --- 10-20 Rip- Low.
pable
See footnote,at end of table.
TABLE K.--SOIL AND WATER FEATURES--Continued '
I flooding high water table I Bedrock I
Soil name and Hydro-I — '------I Potential
map symbol logic: Frequency Duration Months Depth Kind ilonths Depth Hard- I frost
group I ness I action
I kt In
36': 1
Shingle D (None •- --- --- >6.0 --- -- 10-20 Rip- Low.
pable
37, 33 B None —_ --_ >6.0 --- -- 20-40 hip- Low.
Nelson pable
39. 40, 41, 42,
43 C None -- --- >6.0 --- , --- >60 -- Moderate.
Nunn
44, 45, 46, 47,
46 B None------- -- --- >6.0 -- -- >60 -- Low.
Olney
49 A ,None --- --- >6.0 --- --- , >60 -- Low.
Osgood I
50, 51. 52, 53---- B 'None --- --- >6.0 -- -- >60 --- 'Low.
Otero
54, 55 B (None to rare -- -- , >6.0 --- , --- >60 --- Moderate.
Paoli I
I
56, 57 , C (hone -- --- >6.0 --- --- 20-40 Rip- Lou.
henohhll pable
56. 59 D None -- - --- >6.0 --- --- 10-20 Rip- Low.
Shingle pable
60':
Shingle D ,None _ - --- >6.0 --- -- 10-20 Rip- Low.
pable
Renohill C None -- --- >6.0 -- -- 20-40 Rip- Low.
pable
61 . D None -- --- >6.0 --- -- 10-20 Rip- Low.
Tassel pable
62, 63 B ,None --- --- >6.0 --- --- 20-40 Rip- Low.
Terry pable
64, 65 C None--- --- , --- >6.0 --- --- 20-40 Rip- Low.
Thedalund pable
66, 67 C None , --- --- >6.0 --- --- >60 --- Low.
Ulm
6v+ __.I A None .. _.__ ___ >6.0 --- --- >60 --- Low.
Ustic
Torrlorthents
69, 70 ...__, A none-- .._. >6.0 ---
Valent
714:
Yalent-----_.._--_ A None__----- _-.. --- >6.0 --- --- >60 --- Low.
Loup -- D flare to Brief Mar-Jun +.5-1.5 Apparent Nov-Hay >60 --- Moderate.
romNon.
72, 73, 74, 75,
76. 77 E None -. -__ .._- >6.0 --- --- >60 --- Low.
Vona
See footnote at end of table.
TABLE K.--SOIL AND WATER FEATURES--Continued
• Flooding hi h water taole 1 bedrock
Soil name and Hydro— --r— T------T-----1 Potential
map symbol logic Frequency I Duration Months Depth Kind Itionths Depth{Hard— frost
group I
I ness action
.> 1 FE— 1 In
76, t , 60 C hone -- -- >6.0 — --- >60 -- Moderate.
Weld
•
61• b2•, 63•:
Wiley B None -- -- >6.0 -- -- >60 --- Low.
Colby B None --- - --- >6.0 -- --- >60 --- Low..
• See napping unit description for the composition and behavior of the mapping unit.
•
•
•
•
•
•
•
TABLE. L.--SANITANI FACILITIES WELD COUNTY - SOUTH PART
[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," "good," "fair," and other terms used to rate soils.
Absence of an entry means soil was not rated]
Soil name and I Septic tank 1 Sewage lagoon Trench Area I [sill cover
map symbol I absorption I areas sanitary sanitary 1 for landfill
I fields I landfill landfill I �—
- --T- - ---- -1..._- _------_-_---T----__-
`_'r--
I I
' 1. 2 1511ent Severe: Severn: Slight (Fair:
Altvan I seepage. seepage. : thin layer.
I '
ya: I
Aquolls 'Severe: Severe: Severe: S : Poor:
I floods, floods, floods, wetness. wetness.
1 wetness. wetness. wetness.
1
Aquents :Severe: Severe: Severe: Severe: Poor:
I floods, floods, floods, wetness. wetness.
1 wetness. wetness. wetness.
4•: f
Squalls :Severe: Severe: Severe: Severe: Poor:
I floods, floods, floods, wetness. wetness.
wetness. wetness. wetness.
Aquepts Severe: Severe: ,Severe: Severe: Poor:
floods, , floods, I floods, Wetness wetness.
wetness. I wetness. I wetness.
1 I
- 5. 6 Slight 'Severe: Severe: Severe: ,Good.
Ascalon I seepage. I .seepage. seepage.
I I
7 Slight 'Severe: :severe: Severe: Good.
Ascalon slope, 1 seepage. seepage.
seepage. I
0. 9 ,Slight Severe: 'Severe: Severe: Good.
Ascalon I - seepage. I seepage. seepage.
I I
10 s -'Severe: Severe: ISevere: Severe: Fair:
ia::kard : floods. , floods, I floods, floods. too sandy.
I I seepage. I seepage.
I I :
11, 1' - :Slight 'Severe: Severe: Severe: Good.
presser . i seepage. seepage. seepage.
13 --- :oderate: Severe: Severe: Severe: Poor:
Cascajo slope. slope, seepage. seepage. small atones.
seepage,
small stones.
14, 15, 16 alight Modrraset Slight
Colby seepage.
17 -.,....• -light Severe: Slight Slight Good.
Colby slope.
1 ol
Co
lby >light----•• •,Severer Slight Slight Good.
. slops.
Adana --- Moderate: Moderate: Slight Slight Good.
peres slowly. seepage,
slope.
1; Moderate: Severe: Moderate: Moderate: Good.
Colombo floods. floods. floods. floods.
20 'light Moderate: Slight Slight Good.
Colombo slope.
seepage.
See footnote at end of table.
TABLE L.--SANITAFT FACILITIES--Continued
1 I
Soil name and 1 Septic tank 1 Sewage lagoon Trench Area I Daily cover
nap symbol : absorption I areas sanitary sanitary 1 for landfill
1 fields ( landfill — landfill T _
—
1— — 1 I
1
21, 22 :Leveret (Severe: severe: Slicht-----------:Fair:
'Pocono 1 pores slowly. 1 seepage. seepage. too clayey.
1
23 (Moderator Moderates Slight ,Slight Good.
Fort Collins 1 Deres slowly. seepage.
24 (Moderate: Moderate: Slight Slight Good.
Fort Collin! 1 Deres slowly. seepage,
I slope.
25, 2b `Severe: Severe: 5 : Severe: Good.
haverson 1 floods. , floods. floods. floods.
27, 28 Revere: Moder,te: Severe: Slight Poor:
heldt 1 pares slowly. slope. too clayey. too clayey.
29, 30 i312ght Severe: Severe: Severe: Good.
Julesuurg 1 seepage. seepage. , seepage.
31 13li,ght ,Moderate: Slight 4Sli;nt ,Good.
Aim I I seepage. i
32. 33 ISlignt !Moderate: Slight Slight-----------Good.
Alm I - : seepage, I
: slope.I I
34 :Slight Severe: Slight Slight IGood.
Kim I slope. _
I
35': I
Loup ------(severe: Severe: Severe: Severe: Poor:
1 wetness. , wetness, wetness, wetness, 1 wetness.
1 floods. 1 seepage, floods. floods, 1
I 1 floods. seepage. seepage. 1
:Severe: Sevore: Severe: !Poor:
1 wetness, wetness, wetness,
wetness, too sandy.
1 floods. 1 seepage, floods, floods.
` I 1 floods. seepage.
: 1
35e: I 1
Micway Irevere: ISevere: Severe: Moderate: Poor:
: peres slowly, I depth to rock, depth to rock, slope. too clayey,
: dept:, to rock. I slope, too clayey. , thin layer.
:Shim;le Severe: :Severe: Severe: Moderate: Severe:
I cepth to rock. slope, depth to rock, slope. thin layer.
1 depth to rock.
37. 3S 1aevere: Severe: Severe: Severe: Fair:
nelson I depth to rock. depth tc rock, depth to rock, seepage. thin layer.
seepage. seepage.
39 :Severe: Moderate: Slight Slight Fair:
Nunn I peers slowly. excess humus. too clayey.
YC :Severe: Roderate: Slight Slight Fair:
Bunn I pores slowly. excess humus, too clayey.
I slope.
41 ;Severe: l:oderate: Slight Slight Fair:
Nunn pores slowly. excess humus. too clayey.
,2 Severe: Moderate: Slight Slight Fair:
Nunn peres slowly. excess humus, too clayey.
slope.
See footnote at end of table.
TABLE L.--SANITARY FACILITIES--Coat/hued ---
Area---�--+ --- -- 1 -. - Daily cover
Soil name and Septic tank I Sewage lagoon 1 Trench I For landfill
abaorpticn 1 areas I sanitary I sanitary
pap symbol I landfill I landfill
• fields 1 __ ____r----.___---T--
Moderate[ Slignt----------- Slight Fair:
y3 Severe: too clayey.
noon Drees slowly. excess humus.
44, ey, 46, 47, YB Slight
Severe: Slight Slight Good.
Olney seepage.
S Fair:
49 Slight Severe: Severe: seepage. too sandy.
Gagood seepage. - seepage.
50. 51, 5" S116ht
Severe: Slight Slight ,Good.
Uteroro seepage.
53 Slight Severe: Slight ,Slight Good.
utero slope, 1
seepage. 1
54 Slight Severe: Severe! :Severe:
Good.
Paoli seepage. seepage. I seepage.
55 Slight Severe: Severe: 'Severe:
Good.
Paoli ;
seepage. aeepsge. seepage.
Severe: Severe: Slight Fair:
56, IS too clayey,
ntnohlll I percs pth slowly, depth to rock. depth to rock. thin layer.
{ depth to rock.
Severe: Severe: Slight Severe:
50, 59 Severe: thin layer.
Shingle depth co rock. depth Lo� rock. depth to rock.
60': Slight Severe:
Shingle Severe: Severe: Severe: thin layer.
depth to rock. depth to rock. depth to rock.
Severe: Slight Fair:
henohill Severe: Severe: too clayey,
depth slowly, depth to rock. depth to rock. thin layer.
depth to rock.
Severe: Severe: Severe: Poort
61 —a Severe: thin layer,
Tassel depth to rock. depth rock, depth to rock, seepage. area reclaim.
a er pa ge, seeDa ge.
slope.
Severe: Slight Fair:
6Th 63 Severe: Severe: depth to rock. thin layer,
Terry de to rock. seeph e rook, area reclaim.
seepage.
64, 65Slight. Fair:
Severe: Severe: Severe: thin layer.
inrdaluntl depth to rock. depth to rock, depth to rock.
Moderate: Slight Poor:
6, Severe: Slight too clayey.
. Ula pelts slowly. too clayey.
Moderate: : Moderate: Slight Poor:
67 ,Severe: too clayey.
Ulm peers slowly. slope. too clayey.
Severe: Poor:
66, Moderate: Severe: ' Severe: seepage. too sandy,
Us ale Torrlor Lhents slope. seepage, seepage, small stones.
small etones.� too sandy.
Slight Severe:. Severe: Severe: Severe:
6Va 70en - too sandy, seepage. too sandy.
Valet aeepasa.
seepage.
71': Severe! Severe: Severe: Severe:
Valrnt Slighttoo sandy, seepage. too sandy.
seepage.
seepage.
See footnote at end of table. - " '"
TABLC L...-5ADITABT FACILITIES--Continued
Soil nice and Septic tank 1 Sewage lagoon Trench Area 1 Daily cover
rap syabol absorption 1 areas sanitary sanitary I for landfill
fields 1 landfill landfill 1
�_-�_ �._- _r___ ---1-_"- 1
71•: 1
Loup Severe: Severe; Severe: Severe: :poor;
wetness, wetness, Wetness, wetness. 1 wetness.
(loads. seepage, seepage, seepage,
floods. floods. floods. j
72, 73 Slight Severe: Slight----------,Slight 1Good.
Pons seepage. I
74 Slight Severe: Slight Slight :Good.
Yona seepage,
slope.
75, 76, 77 !Slight Severe: Slight Sligh'
Good.
Vona I seepage.
76 {Moderate: Moderate: Slight Slight Good.
Weld 1 pores slowly. seepage.
79, 50 {Moderate: ,Moderate: Slight Slight Good.
'laid 1 peres slowly. slope,
1 seepage.
cis: 1
Wiley :Moderate: Moderate: Slight ,Slight---------- Fair:
1 pares slowly. seepage. I too clayey.
Colby :Slight Moderate: Slight ISlight Good.
seepage.
d2•, S3•: 1
Riley Moderate: Moderate: Slight IS11gh' Fair:
perea slowly. seepage, 1 too clayey.
slope. 1
Colby Slight ,Moderate: Slight (Slight Good.
1 seepage.1 I
__ --
• See rapping unit description for the composition and behavior of the capping unit.
•
i '
• ABLE M.--DUI LDlG SITE DEVELOPMENT _D COUNTY - SOUTH PART .
featur s re d in he ry.[Sow tof ext t fort definitionsn ofh"slighte,"t"moderate,"r estrictive Absenceeofa an entry e means soil l was not
See
not
rated]
Dwellings Small Local roads
Soil name and Shallow Dwellings with commercial and streets
map symbol excavations without buildln s
Dalement! Da sementl 5_--t
Moderate: Moderate: Moderate: Moderate:
1, t2 Severe:cutb shrink-swell,
Altvan tut Da nks cave. shrink-swell. shrink-swell. shrink-swell. frost action.
_ Severe:
3a Severe: Severe: Severe: Severer floods,
Aquolls floods, floods,
floods, floods, wetness. , wetness,
wetness. wetness. wetness. frost action.
Severe:
Severe: Severe:
Severe: floods,
Aquentsfloods, , floods,Severe: � floods,
floods, wetness. wetness. wetness,
wetness. wetness. frost action.
40: Severe: Severe:
Severe: Severe: Severe: floods,
Aquoll• floods, floods, floods, wetness,floods, floods, wetness.
wetness. wetness• wetness. frost action.
Severe: Severe: ;Severe:
Aquepts 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. lows strength.
Moderate: Moderate: Moderate:
D 7 SlS got Moderate: slope, frost action,
Ascalon low strength. r low strength.
low strength. , low strength.
b, 9 J'----- Slight Moderate:
Moderate: Moderate: .1oderate:
Ascalon low strength. low strength. low strength. lowst action,
strength.
Severe: Severe:
u
l Severe: Severe: Severe: floods.
a n,ca rd eu tba nks cave, floods.
floods. floods.
floods.
Slight ,Slight------- - Moderate:
11, 12 Slight Slight : 6 - J frost action.
b resaer
Severe: Moderate:
13 Severe: ,Moderate: Moderate: slope slope.
Casco to i cut bane cave, ( slope. slope.
small stones.
14, 15 ,Slight
Slight Slight ,Slight ''ioderalow trength.
Colby
Slight Moderate: Moderate:
lb, b7 Slight Slight slope• low strength.
Colby
115':Colby ,Slight Slight Slight Moderate: Moderate:
slope. low strength.
Adena Slight Moderate:
Moderate: Moderate: Moderate:
I low strength. low strength. odetrength, low strength.
era
pe.
]
See footnote at end of table.
TABLE M.--BUILDING SITE DEVELOPMENT--Continued
Soil name and Shallow 1 Dwellings Dwellings Small Local roads
nap symbol excavations I without with commercial and streets
1 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. lod strength. low strength,
frost action.
21, 2' Severe: Moderate: Slight Moderate: Severe:
uacono 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 sire-gth. low strength.
shrink-swell.
25, 26 Severe: Severe: Severe: Severe: ,Severe:
Haverson floods. floods. floods. I floods. i floods.
27, 20 Severe: Severe: ,Severe: (Severe: Severe:
Veldt too clayey. shrink-swell, I shrink-swell, I shrink-swell, shrink-swell,
low strength. I low strength. I low strength. low strength.
29, 30 Slight Moderate: (Moderate: Moderate: Moderate:
Julesburg low strength. I low strength. low strength. low strength,
frost action.
31, 32 ,Slight Moderate: Moderate: Moderate: Moderate:
Kim low strength, low strength. low strength. low strength.
33, 34 Slight Moderate: Moderate: ,Moderate: Moderate:
Kim I low strength. low strength. I low strength, low strength.
{ 1 slope.
i I
354: I I
Loup Severe: (Severe: ,Severe: Severe: Severe:
wetness, wetness, wetness, wetness, wetness.
cutbacks cave. floods. floods. floods.
noel Severe: Severe: Severe: Severe: Severe:
wetness, wetness, wetness, wetness, wetness,
floods, - floods. floods. floods. floods.
cutbanks cave.
364:
Midway Severe: Severe: Severe: Severe: Severe:
too clayey. shrink-swell, shrink-swell, , slope, shrink-swell,
low strength. low strength. ( shrink-swell, , low strength.
1 low strength.
Shingle Severe: Severe: Severe: ,Severe: Severe:
depth to rock. , depth to rock. depth to rock. depth to rock, depth to rock.
slope.
37 ,Severe: floderate: 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.
36 Severe: Moderate: Severe: Moderate: Moderate:
Belson depth to rock. , depth to rock, depth to rock. slope, depth to rock,
low strength. depth to rock, low strength.
low strength.
39, 40, 41, 42,
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.
• TABLE M.--BUILDIMC SITE DEVELOPMENT--Continued
Soil name and Shallow Dwellings I Dwellings Small Local roads
map symbol excavations without I with commercial and streets
basements I basements buildings
• - I T-
44 Slight Slight (Slight Slight Moderate:
Olney I low strength.
I
45 Slight Slight :Slight Moderate: Moderate:
Olney slope. low strength.
46, 47 Slight Slight Slight Slight Moderate:
Ulney , low strength.
I
46 Slight Slight. Slight 'Moderate: (Moderate:
Olney slope. I low strength.
I
49 Severe: Slight- Slight Slight :Slight.
Osgood cutbanks cave. I
50, 51 Slight ,Slight ,Slight ,Slight (Slight.
Utero I
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,
Croat action.
56 Moderate: Moderate: Moderate: ,Moderate: ,Severe:
eenohill 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:
kenohill I 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.
5c, 59 (Severe: Severe: Severe: Severe: Severe:
Shingle depth to rock. depth to rock. depth to rock. depth to rock. depth to rock.
604:
Shingle Severe: Severe: Severe: Severe: ,Severe:
depth to rock. depth to rock. depth to rock, depth to rock. I depth to rock.
Renohill Moderate: Moderate: Moderate: Moderate: !Severe:
depth to rock, , low strength, low strength, slope, I low strength,
too clayey. I shrink-swell. depth to rock, low strength, I shrink-swell.
shrink-swell. shrink-swell. I
{ I
61 Moderate: (Moderate: Moderate: Severe: {Moderate:
Tassel depth to rock. depth to rock. depth to rock. slope. I depth to rock.
62 severe: Moderate: Severe: Moderate; :Moderate:
Terry depth to rock. depth to rock. depth to rock. depth to rock. I depth to rock,
63 Severe: Moderate: Severe: Moderate: (Moderate:
Terry depth to rock. depth to rock. depth to rock. depth to rock, I depth to rock,
slope. I •
64 Moderate: Moderate: Moderate: Moderate: (Moderate:
Thedalund depth to rock. low strength. depth to rock. low strength. I low strength.
P5 Moderate: Moderate: Moderate: Moderate: !Moderate:
Thedalund depth to rock. low strength. depth to rock. low strength, I low strength.
slope. I
I
See footnote at end of table.
TABLE M.--BUILDING SITE DEVELOPMENT--Continued
I
Soil name and I Shallow Dwellings Dwellings Small Local roads
map symbol I excavations without with commercial and streets
_Stir-- basements basements buildings -----
66, 67 Moderate: Severe: Severe: Severe: Severe:
Ulm too clayey. shrink-swell. shrink-swell. shrink-swell. low strength,
shrink-swell.
6b0 Severe: Moderate: Moderate: Moderate: Moderate:
Untie small stones, slope. slope. slope, slope.
Torriorthents cutbanks cave.
69 Severe: Slight Slight--------- Slight--- Slight.
Valent cutbanks cave.
70 Severe: Slight Slight--------- Moderate: Slight.
Valent cutbanka cave. slope.
710:
Valent Severe: Slight ,Slight------- Moderate: Slight.
cutbanks cave. I slope.
Loup Severe: Severe: Severe: Severe: Severe:
wetness, wetness, wetness, wetness, wetness.
cutbanks cave. floods. I floods. floods.
72 Slight Slight ISlight--__-___ Slight------ Moderate:
Vona I low strength.
73, 74 Slight Slight :slight---------- Moderate: Moderate:
Vona •
slope. , low strength.
75. 76 Slight Slight Slight----- ,Slight--- Moderate:
Vona low strength.
77 Slight Slight Slight----------{Moderate: Moderate:
Vona , { slope. low strength.
7d, 79 Slight :Moderate: Moderate: Moderate: Moderate:
Weld low strength, low strength, low strength, low strength,
shrink-swell. shrink-swell. shrink-swell. shrink-swell,
A frost action.
60 Slight Moderate: Moderate: Moderate: (Moderate:
Weld low strength, low strength, , low strength, { low strength,
shrink-swell. shrink-swell. I slope, I shrink-swell,
{ shrink-swell. { frost action.
810 620: I
Wiley ,Slight Moderate: Moderate: :Moderate: Moderate:
low strength, low strength, I low strength, low strength,
shrink-swell. shrink-swell. I shrink-swell. shrink-swell.
{
Colby Slight Slight Slight (Slight---- Moderate:
low strength.
630:
Wiley Slight Moderate: Moderate: Moderate: Moderate:
low strength, low strength, low strength, low strength,
shrink-swell. shrink-swell. slope, shrink-swell.
• shrink-swell.
Colby Slight Slight Slight---- Moderate: Moderate:
slope. low strength.
0 See mapping unit description for the composition and behavior of the mapping unit.
•
TABLE N.--CONSTRUCTION MATERIALS WELD COUNTY - SOUTH PART tures e efined the ry. nee
(Some teof xt t fort definitionsnofn'good D,' desibe and ctive soil'unsuited."oaAbsencerofdan entry a
hetis tale to means soil was not
rated]
Soil name and t floadf111
Sand Gravel 1. Topsoil
nap symbol 1
--------------------- — i_
Pair: Fair: ;Fair:
1, Goad excess fines. excess fines. thin layer.
Al tv:n
3°: Poor:
squalls Poor: Good Fairs wetness.
wetness, excess tines.
frost action.
Poor: Good Fair: Poor:
Aquents excess fines. wetness.
wetness,
frost action.
4': Unsuited Unsuited------------- Poor:
A quell Poor: wetness.
wetness,
frost action.
Unsuited ,unsuited Poor:
R quePte Poor: wetness.
wetness,
frost action.
Fair: Poor: Unsuited ,Good.
5, c, 7, d, 9 Ascalon low traction, excess tines. •
frost action,
shrink—swell.
Fair: Unsuited----s Poor:
bankard low strength.
ID
Fair: excess fines. too sandy.
Fair: Poor: Unsuited Fair:
11, 12
bresser s sser eer --------- frost action. excess fines. snail stones.
Good Good Good roar:
13
C _ small atones.
G atCa�O
14, 15, it, 17 Flow:
Unsuited ,Unsuited Good.
Colby low strength.
tcs: Unsuited Unsuited Good.
Colby Fair:
low strength.
Unsuited Unsuited Fair:
AU ens Fair: too clayey.
low strength.
Unsuited Unsuited Fair:
19
E'low: too clayey.
Coloomh bo low traction,
frost action.
Good Good Pates
21, 22 Good too clayey.
Iacono
23, zu
Fair: Unsuited Unsuited------------- Good.
tor
t Collins low strength.
25, 24 Fairs
Unsuited Unsuited Good.
Haverson low strength.
27, Poor: Unsuited Unsuited Poor:
heldt too olayey.
ldt lowistrength,
low strength.
See footnote at end of table.
•
TABLE U.--CONSTRUCTION hATKRIALS--Continued
______ ___._______ .__I � I _�
Soil nece and floadfill Sand I Gravel Topsoil
pap symbol I
I
29, 30 Fair: Poor: Unsuited Good.
Juleaburg low strength, excess finee.
frost action.
31, 32, 33, 34 Fair: Unsuited Unsuited Good.
Kim low strength.
35.:
Loup Poor: ,Fair: Unsuited: Poor:
wetness. excess fines. excess fines. wetness.
boel 'Fair: Fair: Unsuited Fair:
I wetness. excess fines. thin layer.
I
36': 1
iiidway 'Poor: Unsuited Unsuited ,Poor:
I shrink-swell, I too clayey.
Ilow strength, I
I I
I
Lh1n layer.
Shingle IPoor: Unsuited Unsuited 'Poor:
I thin layer. I area reclaim.
I I
37, 3b IPoor: Unsuited Unsuited IGood.
nelson I thin layer. I
I I
39, 40 IPoor: Unsuited----- Unsuited 'Pair:
Nunn I shrink-swell, I thin layer.
I low strength. • I
I I
41, 42 IPoor: Unsuited Unsuited 'Fair:
Nunn I shrink-swell, , I thin layer,
I low strength. I too clayey.
I I
43 IPoor: Unsuited Unsuited 'Poor:
Uunn ' I snrlr.k-swell, I too sandy.
I low strength.
44, 45 'Fair: Poor: Unsuited IFair:
Olney ' low strength. excess tines. I too sandy,
I thin layer.
1
46, 47, 4d Fair: Poor: Unsuited IGood.
Olney - low strength. excess tines. I
45 Good Poor: Unsuited IFoorr
Osgood excess fines. I too sandy.
5U, 51, )2. 53 Good Poor: Unsuited IGood.
Otero excess fines. I
I
54, 55 Fair: Unsuited Unaulted (Good,
Paoli low strength, I
frost action. I
56, 57 Poor: Unsuited Unsuited IPoor:
ilenohill low strength, , I thin layer.
thin layer. I I
I I
56, 59 Poor: Unsuited (Unsuited------------(poor:
Shingle thin layer. I 1 area reclaim.
I I
6U':
Shingle Poor: Unsuited 'Unsuited 'Poor:
thin layer. I I area reclaim.
I I
See footnote at end of table.
TABLE N.--CGNSTHUCTI0N MATERIALS--Continued
Snil name and -Roadfill -I Sand I Gravel Topsoil
map symbol 1 ! --- -_
---- -T-- ---T
---_
60•:
henohill Poor: Unsuited Unsuited Poo :
low strength, thin layer.
thin layer.
61 Poor: ,Unsuited Unsuited ,Poo
Tassel thin layer, area reclaim.
area reclaim.
62, 63 Poor: Unsuited: Unsuited: Fair:
Terry tnin layer, tnin layer. thin layer. small stones.
area reclaim.
oY, 6r Poor: Unsuited Unsuited Good.
Tnedalund thin layer.
66, L7 Poor: Unsuited ' Unsuited Fair:
ulm shrink-swell. 1 too clayey.
low strength.
t J,• Good Good Good I Poor:
ustic Torriorthents ! smell stones,
too Gandy.
6"y, 70 Good Fair Unsuited Poor:
Valent too sandy.
7:•:
Yalent Good ,Fair ,Unsuited Poor:
I too sandy.
!
Loup Poor: Fair: !Unsuited: I Poor:
wetness. excess fines. I excess fines. wetness.
72. 73, 74, 75, 76,
77 Fair: Poor: Unsuited Good.
Vona ' low strength. excess fines.
7o, 79, op Fair: Unsuited Unsuited Fair:
Weld low strength, too clayey.
shrink-swell,
frost action.
ot• 624, e3•:
wiley Fair: Unsuited Unsuited Fair:
low strength,
too clayey.
shrink-swell.
Colby Fair: Unsuited Unsuited ,Good.
low strength. ^^._-- _ __-_
• See mapping unit description for the composition and behavior of the mapping unit.
TABLE P1.--WATEH HAUAGCHELT WELD COUNTY - SOUTH PART
[Some of the terns used in this table to describe restrictive soil features are defined in the Glossary. Absence
• of an entry means soil was not evaluated)
Soil none and Pond I Embankments, I Drainage Irrigation I Terraces I Grassed
cap syobol reservoir I dikes, and I 1 and I waterways
—_ _-___areas I levees I I diversions I
__—^ 1 I
1, 2 Seepage Thin layer Favorable Favorable----- hooting depth ii;ooting depth.
Altvan
3':
A quolla , Floods, Floods, Wetness Wetness.
poor outlets. wetness.
Aguents Floods, Floods, Wetness .letness.
I poor outlets. wetness.
La:
Aguolls , Floods, Floods, ,Wetness Wetness.
I poor outlets. wetness.
I
Aquepts ----- .- --- Floods, Floods, wetness ,Wetness.
1 poor outlets. wetness.
5 -i -eye ace, Piping, Slope Slope, Erodes easily, Credos easily.
Ascalon I slope. low strength. erodes easily. piping.
6 ------ -ISeepa,te, eiplog, Slope Slope, ,erodes easily, ,Lrodes easily,
Ascalon slope. low strength. erodes easily.! piping. I slope.
'
7 e,eeyage, Aping, ,Slope Slope, ;Erodes easily, 'prudes easily,
Ascalon slope. low strength. I erodes easily.) piping, slope.
I I slope.
I
G Seepage, Piping, Iesworable ._ Favorable l Erodes easily, grodes easily.
Ascalon slope. low strength. I e piping.
I 9 I
---------------__ seepage. Piping, !Slope Slope, Lrodes easily, Erodes easily.
Ascalon slope. low strength. I I erodes easily. piping.
15 :Seepage Piping, ICutbanks cave, Droughty, Erodes easily, 'Droughty,
nankard I seepage, ilooas, floods, piping. I erodes easily.
I , erodes easily. poor outlets. seepage.
11 ISeepace ---!Favorable---- Favorable Droughty ,Erodes easily, !Erodes easily.
Dresser I I piping.
I
It ISnopage, Favorable Slope Slope, Erodes easily, Erod-s easily.
Presser I slope. ) erodes easily. piping.
I
13 !Seepage, Seepage Slope Slope, Complex slope, Droughty,
Casualo I slope. t drough yPiping, ' slope.
I b too sandy.
is 'Scepnge Lou, strength, ,Favorable Favorable Favorable Favorable.
Colby piping.
15 -)F- - Seepage Lou strength, Favorable Favorable Favorable Slope,
Colby 1 piping. erodes easily.
16, 17 Seepage Low strength, Slope Slope, Favorable Slope,
Colby piping. erodes easily. erodes easily.
16':
Colby Seepage Low strength, Slope Slope, Favorable Slope,
piping. erodes easily. erodes easily.
Adrna Slope, Low atrengtn, Slope, Slope, Slope, Slope,
seepage. piping. pores slowly. pares slowly. piping. pores slowly.
19 Seepage Low strength, Floods Favorable Lrodes easily Erodes easily.
Colombo compressible.
See footnote at end of table.
_ . TANLE P1,_-WATEN MANAGEMENT--Continued
boil name and I Pond I Embankments, I I-- I ----r
nil symbol I reservoir I Drainage I Irrigation I Terraces
__ I _ areas__ I dikes, and I I I and I Grassed
_ I levee_ y
"`r------ I I I diversion] I waterways
20Seepaget �T —T --r _-- _........r___________
Colunbb ILow strength, Floods, I
Slope, IErodes easily Erode] _sail
I compressible. _lope, erodes esaily.l
21, 2? Seepage (Shrine-s uell, Slope, I I
2no Slow intake,
seepage, peres slowly. slope. IPeres ]lowly--_I Y.rca _lowly.
piping. I I
I
23 Seepage Low strength--- Peres rca _pawl I
Fort Collins y---i F v avorable—_-__ Favorable (Favorable,
24 Slope, Low strength---,Slope, Sl
Slo e, I
Tort Collins seepage. p ope Favorable Favorable.
1 pert] slowly.
25 Seepage ,Lev strengtn, ;Floods I
^
haverson { compressible, { Floods Floods, :Favorable.
1 piping. I. piping. I
`t Serra ae Lou strength, I haverson ow strength,, ISlope
Slope iFlnoda, �Ftvora Favorable.
I piping. I i piping.
27, 20 i I
helot Slope Low strengtn, Ire rca slowly
shrink-swell. ; slope. ' Slope, Peres I slowly--- yr rca slowly.
I pe rcD slowly, I
slow intake.
29 Seepage Seepage,
e,
Julesburg g Favorable ,Droughty Soil blowin
piping, I F, Erodes easily
low strength, piping.
3C
Ju lesCurg Seepage, Seepage, Slope
D Piping, IDroughty, Soil blowing, Erodes easily.
low strengtn, slope, piping.
31 _ 1 erodes ea sl ky.
yl_ ,S epage, Piping, Favorable
slope, low strengtn.
Favorable vo ra ble Slope, Slope.
hard to pack. piping.
32, 33, 34---- seepage, Piping, Slo7 e
KIM slope, low ,strength, $I Slope Spipin Slope.
nerd to pack. iping,
35a:
Lou? eepsgc--..._,__.
- Seepage, Poor outlets,
Wetness, Ua Loess _
� curb_nks cave. seepage, 7letnesa.
piping
boll traps-
..______ S.c ryafe, krtness, ,Fast Intake, Wetness,erodes easily, floods, 'selfless,
piping wetness, too sandy. floods.
poor outlet], wetness.
3Lao
nidEay , __-.__.,.lope, TLir layer,
p slope, Complex s dept, Slope, Slope,depth to rock, shrink lepth
setpa4e. lo.. strength, excess tsalt, excess salt.rooting depth to rock, exces _salty
t, poor outlets. excess salt.
Stingle ..__._ - mope, Low strength, -
gr , dsl rock, Slope, Slope, Slope,
depth to rook. thin layer, , slope. rooting depth.d-h. depth to rock. rooting depth
37 - Urpth to rock, Piping. Slope,
ye
Slope, Depth to rock Sooting depth.
Nelson seepage, thin is ,Y 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 Cooper s,ibje Peres ]pawl
y'-' Ferri alovlyslowly-- Frrea slowly--- Favorable.
Dls.
Nunn shrink-shell,
hard to pack.
See footnote at end of table.
TABLE P1.--MATER MANAGEMENT--Continued
---__ - T- - --I------ , -j- I---
soil name and Pond I Embankments, I Drainage Irrigation Terraces I Grassed
gap symbol reservoir I dikes, and I and I waterways
areas I levees diversions
- T - -1---- -E— --T ---I--_----
I
4b Favorable Compressible, Peres slowly, Peres slowly, Peres slowly---(Favorable.
Bunn shrink-swell, slope. slope. I
hard to pack. 1
41 Favorable Compressible, Peres slowly-- Peres slowly--- Peres slowly---!Favorable.
Gunn shrink-swell,
hard to pack.
42 Favorable Compressible, Peres slowly, Pores slowly, ,Peres slowly--- Favorable.
Nuun shrink-swell, slope. slope.
hard to pack.
43 Favorable Compressible, Peres slowly---,Peres slowly--- Pores slowly--- Favorable.
:,unn shrink-swell, I
hard to pack. I
I
4 Seepage, Piping, Slope ISoll blowing, ,Erodes easily, Erodes easily.
Ulney slope, low strength. I droughty. { piping.
I f
45 seepage, Piping, ;Slope ISoil blowing, 'Erodes easily, Erodes easily.
ulney slope. low strength. I droughty, I piping.
I slope. I a
1 I
4u Seepage, Piping, Favorable :Favorable 'Erodes easily, ;Erodes easily.
Ulney slope. low strength. I I piping.
I I
47, 40 Seepage, ,Piping. Slope :Slope, 'Erodes easily, Erodes easily.
Olney slope. low strength. I erodes easily.I piping.
I I
47 Seepage Piping Favorable-----ISo1l blowing---flos sandy, Erodes easily.
.i sgood : I piping.
50 ,Seepage ,Piping, ,Favorable Droughty 'Erodes easily, Erodes easily.
wtero I seepage. I piping.
I I
51, 52. 53 :Seepage, Piping, Slope Slope, :Erodes easily, Erodes easily.
utero e I slope. seepage. - erodes easily, I piping.
droughty. I
5u :orepage ,Piping, Favorable Favorable 'Piping Favorable.
Paull 1 low strength. I
55 Seepage :Piping, Slope Slope IPipin„ Favorable.
Faoli low strength. I
SC- - ,Depth to rock Low strength, Depth to rock, Hooting depth, :Depth to rock, Seating depth,
cenohill I thin layer, percs slowly. , glow intake. pores slowly. perms slowly.
1 compressible. I
') ---- :.1.; Low strength, slope, :Slope, Depth to rock, floating depth,
denohil! ^: deptn to rock. thin layer, depth to rock, rooting depth, pores slowly. perms slowly.
: compressible. , perms slowly. slow intake.
s57 -_- ..-::a roe. Low strength, Depth to rock, Slope, Depth to rock Rooting depth.
hingle : depth to rock. thin layer. slope. rooting depth.
DO':
Shingly -- lope, Low strength, Sept: to rock, Slope, Depth to rock hooting depth.
(depth to rock, thin layer. slope. , rooting depth.
henol,ill -- ::lope, Low strengtn, Slope, Slope. Depth to rock, (footing depth,
depth to rock. thin layer, depth to rock, rooting depth, pores slowly. I pesos slowly.
compressible. perea slowly. slow intake. 1
ti ---- ❑epth to rock, ,Erodes easily, hot needed Droughty, Depth to rock, :Rooting depth,
Tassel slope. thin layer. rooting depth. erodes easily.' erodes easily.
62 Depth to rook, Piping, Slope, Slope, Depth to rock, :Rooting depth,
Terry seepage. thin layer. rooting depth, rooting depth, piping, I soil blowing.
soil blowing. soil blowing. I
1
i.e. footnote at end of table.
TABLE P1.--WATER HANAGEIIIYT--Continued
�T�--� .`T_ Terraces 1 Grassed
�—Pond I Embankments, I Drainage I Irrigationand I waterways
boil name and I I __
map symbol reservoir I dikes, and I I diversions I
areas I levees c... -----�j— _—"�"_ .___-___� -_
— —_— r-- T— I ISlope.
I Slope. ISlope. Slope,
Slope, :Piping, th I rooting depth, depth to rock, ' rooting depth,
63thin layer. rooting Cep
Terry depth to rock,` I soil plowing. soil blowln,. � soil blowing.
seepage. I I
ISlope, Depth to rock (Hooting depth.
64 Depth to rock, :Low strength, 'depth to rock.' rooting depth.
Sheds hind slope. I thinn'l• I
{ thin layer. 1
'Slope, Depth to rock Slope.
65 t depthpiping,to rock, LouL strength,, Sdepth to rock.' rooting depth. rooting depth.
rrCalcr.d slope. nn 1, I
thin layer. 1
Low strenrth, Favorable IPeres slowly, Peres slowly--- Erodes easily.
U I erodes easily.
66 favorable lc corpre-sible. I
compressible. I
Slope 'Lot.. ink-swell ISlope ;Slope,
Peres slowly--- Erodes easily.
67 I anrink-swell, , 1 Deres slowly.
OleI erodes easily.
I compressible.
1 `Slope. Too sandy. VrouhtY•
boa SslopSe, :Seepage ;Slope droughty. ...� slope.
slope.
Ust1c so Ve.
,
Torriortnenta ;Eroded easily, (Erodes easily.
9 __ Piping, Slope,
V Seepage, Slope erodes easily,' piping. I
- i
5 Yalent slope. seepage. droughty. . I
Slope, t Erodes easily, ISlope,
seepage, Piping, Slope erodes easily, piping. I erodes easily.
TGa Smoot slope. seepage. droughty.
Erodes easily, !S1opC,
Slope erodes easily.
s. Slope,T1 5c ern gc, P1 Piping, erodes easily. Plping•
alone slope. seepage. droughty. i I
SeeDaCe ,Seepage. Poor outlets, ,Le Loess.
Not needed :Iuot needed.
Loup piping, cutbacks cave. seepage. I
P erode, Slope
Slope, Piping„ IErodos easily.
. Seepage, fast intake, modes easily.'
72, 73 slope. seepas easily, seepage. I
Vona seepage.
Piping, Slope
Slope, Piping, ;Slope,
74 JeeVa Ce, Cast Sn tak<, erodes easlly.l erodes easily.
slope. erodes easily, seepage.
Vona seepage.
Erodes easily.
Favorable------ Fast intake, Piping,
75 Seepage
Piping, seepage. , erodes easily.
slope erodes easily.
Vona seepage.
Piping, Slope
Slope, Piping, Erodes easily.
7t 7T 'Seepage,
Vora slope. erodes easily, fast intake, erodes easily.
seepage.
seepage.
Peres slowly, Piping, Peres slowly.
lb Seepage Low strength--- Peres slowly---, slow intake. prres slowly.
Weld Piping, ,Peres slowly.
Slope, Slope,
T9 LO Seepage Lou strength-- per
slowly. pert" slowly, pares slowly.
'avid per slow intake.•C1a:Miley Slope, Piling, Peres slowly--- Favorable
Piping Erodes easily.
seepage. low strength.
Colby Seepage Lou in8 ngtn, Favorable
Favorable 'Favorable Favorable.
piping. I
See footnote at end of table.
TABLE Pi.--WATER MANAGLMEsIT--Continued
-- --` I --».—.V_-- — _
-- --------- I --
Soil nave and I Pond tobankraenta, I Drainage Irrigation I Terraces Grassed
cap symbol I reservoir . dikes, and I I and waterways
I areas - levees I I diversions
620: I I
Wiley ;Slope, Piping, Slope, Slope, IPlping Erodes easily.,
I seepage. low strengtn. perms slowly• erodes easily.'
Colby IOeepaae Low strength, Fa vorable__.— Favorable----..IFavorable dope,
piping. I erodes easily
63•: I I
alley Slope, Piping, Slope, Slope, !Piping Slope,
Iseepage. I low strength. peres slowly. erodes easily.; ('routs molly
Colby ISeepage ILow strength, Slope Slope, IFavorable slope,
I I Piping. I erodes easily.I erodes easily
• See sapping unit description for the composition and behavior of the mapping unit.
TAE O.--CLASSIFICATION OF THE SOILS WELD COUNTY - SOVTN PART
SL
Soil name I Family or higher taxonomic class
Adera— - I Fine-loony, mixed, mesle Ustollic PalearI.ids
Altvon ' Finn-loamy over sandy or sandy-skeletal, nixed, meal° Aridic Argiustolls
Aquento ( Aquents
i,y uepta I Aquepts
Aquolls Aquolls
Ascalon I Fine-loamy, mixed, mesh Aridic Arriustolls
aoncbr" Sandy, nixed, resit Ustic Tarrirluvents
anti bandy, nixed, nesle Fluvaquentie Iaplustolls
dresser Fine-lorry, n Led, menle Ariele Argiustolls
Casco}_ .,ndy-skeletal, nixed, nesic Cato!lic Caiciorthids
Colby _ne-silty, mixed (calcareous), mesic Ustic Torrlorthents
Got ant :lino-lcn.-.y, :aimed, state Torrlfluvuntie liapiastolls
'coons, Clayey over any or sandy-skeletal, acntmorillonitle, medic Aridic Artiusto'_1s
Fart Collins Fine-losny, nixed, meal° Latollic iiaplarails
ravernen Fine-loamy, nixed (calcareous), resin Ustic Torrirluvents
i,eldt Fine, montaerillonitic, meal° Cstertic Cnuhorthids
ulestur; Coarse-loamy, aired, nesie Arldlc Arclustolls
tic. Fine-Lora y, mixed (calcareous), seals, estic Torrlorthents
Loup 2.s ndy, mixed, r.esLc Typic naplaouolis
Ia a ny Cl:,yey, montetrlilonitic (calcareous), medic, shallow Usti(' Torriorthents
r.el m:r Coarse-loony, nixed (calcareous), retie Ustic Torrlorthents
suer. Fine, scntnorillonitic, nesic /critic Argiustolls
Olney Fine-loamy, mixed, scale Uatcllie liaplarglds
tstooa Leary, nisei, r sic Arente Ustollic Uaplargids
Utcro Coarse-loamy, sixes (calcareoua), scale Untie Torrlorthents
I.o11 Coarse-!oaay, oixe1, _.esie Pachle naplustolls
naco::ill Fine, nontooril_unitl.o, nesic Usto111c ilaplargios
aninyle Loamy, mixed (en'eareous), tests, shallow Catie Torriorthonts
Taaocl Loamy, nixes (calcareous), reaie, shallow Untie Torrlorthents
Terry Coarse-loamy, aixea, me sic Ustollic naplargida
Tnedzland Fine-bony, wises (calcareous), nesic Ustle Torriorthonts
bin Fine, z.ontnorillonitic, ..mesic Ustollic Haplargids
Ustic iorriorthe nta us'ic Torrlorthents
Talent dlxed, reale Ustic Torripaaenents
Vona -- . Coarse-Loary, mixed, medic Ustollic Haplargids
eels clot', oontcorillonit.tc, medic Aridic Paleustolls
.illy Fine-silty, mixed, nesic Ustol lie Haplargids
APPENDIX 2
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•
•
•
•
•
•-
b APPENDIX 3
•
•
i
•
•
•
•
Check._st of the birds of the Fort St. drain 1
Nuclear Power Site. From Ryder (1976) . t
r
i
pecies i!.1Y.11�ik
M. 1l
r,re(i !;1 �;;e (Pn'.Iicnr, Bin icollic)
Western Grebe (Aech �rl!ovtr►i_;- occidentllis) H, u
Pied-bil11:d Grebe (Pod 'yr.Tb:;s podiceps_) S, u
Great Blue !: ron (Prdea herodia s)
Black-crowned Night Heron (_yctic.orax n,cticnrax) 1'1, u
American Bittern ('Botaurus lenti(finosus) u
White-faced Ibis (^lf�uadis chihi ) l•S, r
CanadaGoose Brenta canalensis) !4, u
Go�,. (�.___�_ _.—__ —_
Mallard (Ana �atL�/nchos) -- R, c
•
(;adr•;al l fir' Ts st.repera)
Pintail (Anas _cuta)
Green-win d TealV(:,Bas crecca) ti, c
Blue-wince: Teal (Anas discors) , c
----------
-------------------i %, IT%S r�"c:llf'r�- r'�� ------- - t,l' r
Cinnamon . ....1 (. _ . ._�.. -_- .
American << c Ir. ( i._. -.. {. ^) — --
Northern .,':�: ,.:Itr (A:,�s, Cl r ;tt ) ----.. N,-- , o
—
Wood Duck (,; .f,o, s_;-;._.___._. 11, r
- Redhead (1Ja - v `c ni) ___
.� ___ u -
ingnecic: t1 rc; (;',vi1i.I' _ c ` T:`.► i—') __—_.__—._ _— — !I> r
Lessen Sc::lu1 (i i_I:ya. 4' jnjs) • .i_ u_._
buti1eliei:d (tice;)he I' a1ben! )
Ruddy Duck (0�' ,1113 j,�Ir:1icon s_ s) _.,�� — ;1, u --
il
ConTen Merganser (`!Qr(u (_ er(�.tr:se ��-..-,., ii
2 .- Rilsi(!cnt a - Abundant
M - ;.t i r ra n t c - Common •
1 - „ihow Resident u - Uncommon
S - S',ni.::er Resident r - Rare
1 Syecies
Status*
Turkey Vulture (Cali;artes aura ) — j
Goshawk (Accipi ter• gentf 1 is)
----- M, r Li
Sharp-shinned Hawk (Accipter striates) i
Cooper's Hawk (Accipter cooperi i ) M, r
Red-tailed Hawk (Buteo jamaicensis)
R, u El
Swainson's Hawk (Buteo swainsoni )
M, u
Rough-legged Hawk (Buteo 1agopus) t:;
Ferruginous Hark (Buteo regalis) M, r '
Golden Eagle Anuila chrysaetos) El
'+
Bald Eagle (Haliaeetus leucocephalus) rl
Marsh Hawk (Circus cyaneus) li, c
Prairie Lra i(F_ 1
Falcon %p iiiCXiCanU5) M, r-
American Kestrel Falco s arverius) R, c r"
Ring-necked Pheasant (?hasianus colchicus)
_ ----- R, u
Virginia Rail (Rallus limicola) i
$, u
ip. i
Sora (Porzana carolina) S, u '_, ;
American Coot (Ful ica americana) .,•,. i
Killdeer (Charadrius vociferus) R, a . !
Common Snipe (Capella 211inaco) !• -I
R, c 12 Spotted Sandpiper (Actitis macularia) 1
- H, u #
Solitary Sandpiper (Tririga solitaria) ri, r LII
Greater Yellowlegs (Trio a reianoleucos) ,
Fi, u
l
Lesser Yellowlegs (Trine a flavipes) 1,1, u r i
i.,_1 i
Least Sandpiper (Calidris minutilla)
Long-billed Dowilcher (l.imnodrnmus scolopiceus) ;i ,, i
Scr,ril�,�lr;iatcu r-- ,
._ Sandpiper (Calidr�is pusi] lus) • lr, u
• ,. i
E. 1
gYz+!c y a�w»n. r,.e.•^*�"w[ w r.,�„t..r......•....,—,..tt. _
•
Ji
!T.ecies Sta tzmk
f .0 rican Avocet (f:ecurvirorAra americana) f1, e
Wilson's Phalarope (Ste janonus tricolor) M, r I
Herring Gull (taros arg_entatus) 11, u
California Gull (Larus cal i fornicus) t•1, u I
4. ring-billed Gull (Larus delawarensis) M, c i
Franklin's Gull (Larus pipixcan) M, c
Forster's Tern (Sterna forsteri)
Yellow-billed Cuckoo (Coccyzus americanus) S, r
frock Dove (Columba liva)va) R, c
Mourning Dove (Zenaida macroura) S, a j
•
Screech Owl (Otus asio) R, r
Great Horned Owl (Bubo virginianus) R, c 1
Long-eared Owl (Asio otus) . R, r I
Short-eared Owl (Asio flammeus) t•1, r .
Common Wightha►•rk (Chordeiles minor) S, c
1 Broad-tailed Hummingbird (Selasphorus platycercus) M, r
rufous Hummingbird (Selasphorus rufus) I4, r
.l
` Belted Kingfisher (Megacervle alcyon) R, c
t Common Flicker (Colaptes auratus) • R, a
R d-headed Woodpecker (lelaner')es erythrocephalus) S, c
i<
I. hair, Woodpecker (Dendrocopos villosus) R, u
Downy Woodpecker (Dendr•ocoj os jubescens) • R, u
Eastern Kingbird (Iyr anus yraannus) S, c -
4 Western Kingbird (Tyrannus verticalis) • S' U.___
&vit. Phoebe (Sayor'n i s say a) _ —
I1illow (Traill 's) Flycatcher (Cruh;dnnax traillii) ii, r
i _
I
b.,. i
i
Species Status
Western Wood Pewee (trintopus sorrlidulus) 1.1, u
Olive-sided Flycatcher (lluttallornis borealis) M. r
Horned Lark (Eremophila alpestris) W, u r
Bank Swallow (Riparia riparia) S, u
Rough-winged Swallow (Stelgidopteryx ruficollis) S, u
Barn Swallow (Hirundo rustica) S, c
Jay k Blue (C}'atlJr:ttta cristata) `-_R, u j
_ Black-billed Magpie (Pica pica) • R , c ;,
Common Crow (Ccrvus brachyrhynchos) R, c i
Black-capped Chickadee (Parus atricapillus) R, c
- Mountain Chickadee (Pares gambel i) 1.1, r `s
i
White-breasted nuthatch (Sitta carolinensis) R, u {{
.) !
i
Red-breasted nuthatch (Sitta canadensis) M, ,-
Brown Creeper (Certhia familiaris)iaris) —_ ..___ _. _ .. W u i
House Wren (Troglodytes aedon) S, a ;
Winter Wren (Troglodytes troglodytes) W, r : L I
•
Rock Wren (Salpinczes obsoletus) 11, r
Mockingbird (Minusof,ofottos) S u 11 1
Gray Catbird (Orrnet:ella carolinensis) S 1
Bro•,nn Thrasher (Toxosto:::a refum) S, c
Sage Thrasher (Oreosco .?s rrontanus) 11 r ._ +
- American Robin (Turdus ,aigratorius) S, a
Swainson's Thrush (Catharus ustulatus) ii c
Mountain Bluebird (Sia1 ia curruco ides) M, c j
Ruby crowned Kinglet ( e_gul,rs calendula) U, u
f ' I
Bohu: ri,in haswiri IZnnth ►ci l l c ,ii r;rlus — 1
L I
• i
s
I
Swcic! Status*
We'itcrn Tanager (Pirarrga lrrrloviciana)
M, u
M, r
Bose-breasted Grosbeak (#'heucticus ludovicianus
Black-headed Grosbeak Ilreucticus rrelanoce halos) M, c ► 1
Glue Grosbeak (Gui r•aca caerul ea) M, r
S, r r
Indigo Bunting (Passerine �anea)
Lazuli Bunting (Passerine amoena) S, c -
fvening Grosbeak (liesperinhona vespertina) W, u
Pine Siskin (Pints pirus) i't, u
American Goldfinch (Spinus tristis) — R, u `
Green-tailed Towhee (Chlorura chlorura) M, u
Rufous-sided Towhee (Pipilo erythrophthalmus) M, u 1
Lark Bultin (Ca1r,,,spiza melarocer„s) M, r -
Slvannah Sparrow (Passerculus sandwichensis) ti, c
Vesper Sparrow (Pcoecetes graminews) M, c ' i
1
Lark Sparrow (Chondestes or•arr acus) M, r
•
Dark-eyed Junco (Junco hvemalis)i s) White-winged (aikeni )keni ) W, r
Dark-eyed Junco (Junco Ilye_ral i s) Slate-colored (hyemalis)s) W, C '
Dark-eyed Junco (Junco lyemalis) Oregon (oreoanus) - • W, a
Gray-headed Junco (Junco canicens) • W, r i
Tree Sparrow (Spizella arlrorea) W, a ,
Chipping Sparrow (Spizella- passerina) M' a�_
Clay-colored Sparrow (Spizella pallida) M, c
Brewer's Sparrow (Spizella brewed) 14, c
Field Sparrow (Spizella pusilla) M, r
Harris' Sparrow (Zonotrichia qucrula) W, r
'bite-crowned Sparrow (Zonotrichia leuc_p_pl rys) W, c
a
14
I
Skecies Status*
Northern Shrike (Lanius excubitor) t�l, r !
Loggerhead Shrike (Lanius ludovicianus) S, u
— Starling (Sturnus vul0aris) R, a
Solitary Vireo (Vireo solitarius) S, u 1
[ {
Red-eyed Vireo (Vireo olivaceus) S, u
3
Black-and-white Warbler (;iniotilta varia) M, r
Orange-crowned Warbler (fermi vora cleata)ta) - H, u r
1
Virginia 's Warbler (Vcrmivora virginiae) N, r b
Yellow Warbler (Dendroica petechia) S, c
1 '
Magnolia Warbler (Dendroica magnolia) M, r -
i
- Yellow-rumped Warbler (Dendroica coronata ) Myrtle (coronata) 11, c
r
Yellow-rumped Warbler (Dendroica coronata) Audubcn's (auduboni ) N, c
r
Townsend's Warbler (Dendroica townsendi ) N, r ,.
Chestnut-sided Warbler (Dendroica _ensylvanica) N, r '
Northern Waterthrush (Seiurus noveboracensis) N, r !
MacGillivray's Warbler (Oporornis tolrniei ) f1, u C
Common Yellowthroat (Geothlypis trichas) . S, c
C 4
Wilson's Warbler (Wilsonia pusilla) fl, c
• House Sparrow (Passer dorresticus) • R, c
Western Meadowlark (Sturnella neolecta) R, a
Yellow-headed Blackbird (Xanthorcahalus xantf;rcephalus) S, a
_ Red-winged Blackbird (Aoelaius pfioeniceus) • R, a
i
Northern Oriole ( Icterus cDalbula) S, c
i
Urewer's Blackbird ( yphasJus cyanocep'ralus ) M, c
Common Grackle (Quiscalus piscrrla) S, a
Brown-headed Cowbird (Molothru, ater) „
L 1
ryr.„x"+.AS1�'l*w_v'eT.s••w:'Rme.m'.lVf.1R v-.ev... .w....r..—�......���..- ....
I
•
S cries Status*
Lincoln's Sparrow (g^.?nspiza M, c
Swamp Sparrow (sinlnspiza gcorgianr ) M. r
Song Sparrow (1lelospiza mclodia) R, c
•
I
I
I
I
. s
f
APPENDIX 4
Amphibians present in the vicinity of the Fort Saint Vrain
Generating Station. From Wunder (1976) .
`` Common Name Scientific Name -
k
LA 1 . Spadefoot toad Scaphiopus bombifrons
2. Great Plains toad Bufo cognatur
i 3. Woodhouse's toad Bufo woodhousei
4. Western chorus frog Pseudacris triseriata
5. Bullfrog Rana catesbiaoa
• 6. Tiger salamander Acihystoma t,grin'mz
!I
a
Reptiles present in the vicinity of the Fort Saint Vrain
Generating Station. From Wunder (1976).
Common Name Scientific Name
1. Western box turtle Terrapene ornata
2. Snapping turtle Chelydra serpentina
3. Painted turtle Chrysemys picta
4. Spiny softshell turtle Trionyx spiniferus
5. Racer Coluber constrictor
6. Common garter snake Thomnophis sirtalis
7. Bullsnake Pituophis melanoleucus
8. Plains garter snake Thamnophis radix
APPENDIX 5
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APPENDIX 6
i
1
This is a report of a cultural resources inventory that was
conducted of two areas near Johnstown, Colorado at the request of
Ecology Consultants, Inc. , Fort Collins, Colorado. Thw two areas
surveyed will be affected by proposed construction of sewage ponds.
One of the areas surveyed (Area 1) is approximately 1/2 mile south
of Johnstown in the west 1/2 of Section 9, T4N, R67W. The second
area (Area 2) is 1 1/2 miles east of Johnstown in the south central
part of Section 3, T4N, R67W and immediately east of an existing
sewage pond.
I met Mr. Boyd Hanzon of M&I Consulting Engineers in Johnstown on
Thursday morning, May 25 1978. I received from him a large scale
topographic map indicating the areas to be surveyed (cf. Figure 1) .
He also accompanied me to the two areas and described the limits of
the survey areas. The areas actually surveyed are indicated in Figure 2.
Area 1 is an area of approximately 72 acres immediately west
of the Little Thompson River. It is relatively flat and the soil is
brown to light brown in color and sandy. The area north of the east-
west road (cf. Figure 2) was cultivated in beets and the area south of
the road had recently been disced. Ground visibility was essentially
100% both north and south of the road. The area was surveyed by walking
east-west transects approximately 30 feet apart. No evidence of
prehistoric cultural activities was observed in Area 1, although there
is some possibility that alluviation caused by flooding of the Little
Thompson River in the past may have buried prehistoric cultural materials.
There is a small white house located in the northwest corner of the
SW 1/4 of Section 9. Mrs. Elba Dee of Johnstown, who is the present
owner of the land, informed me that the house is an old "beet shack"
that was moved to that location from elsewhere about 25 years ago.
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It is not likely that the house is historically or architecturally
significant (cf. Figure 3) .
Area 2 is approximately 20 acres in size and is located in a
relatively flat area about 1/4 mile north of the Little Thompson River.
The soils are sandy and brown in color. It was planted in corn at the
time of the survey and ground visibility was about 100%. The area
was surveyed by walking east-west transects approximately 30 feet
apart. No evidence of prehistoric or historic cultural materials
were observed in Area 2. Large numbers of small river cobbles were
observed in the area just east of the existing sewage pond. It
appears that these cobbles were part of the fill used in construction
of the sewage pond. Several flakes of quartz and other crypto-
crystalline material were found mixed in with the cobbles. These flakes,
however, were relatively amorphous in shape, had no bulbs of percussion
and exhibited considerable quantities of recent crushing. It is
evident that the flakes were caused by vehicle traffic in the area.
A search of the National Register of Historic Places and the site
files of the State Archaeologist came up with no historic or prehistoric
sites in the survey area or surrounding areas. Based on the search of
records and on the survey of the area, it is recommended that no
significant cultural materials will be affected by construction of
sewage ponds in Araas 1 and 2. However, it is possible that subsurface
cultural materials may be encountered during construction activities.
In this instance, the State Archaeologist should be immediately
notified.
i;
.711.
W fYi'_
a a,J4'
•
Figure 3. House located in NW corner of SW 1/4,
Section 9, T4N, R67W
DATE:April 2' 1980
TO: The Board of County Commissioners
Weld County, Colorado
FROM: Clerk to the Board Office
Commissioners:
If you have no objections, we have tentatively set the
following hearings for the 6th of June, 1980
DOC "80-35 Town of Johnstown, SUP, Expansion of wastewater fac.
DOC ',' 80-36 Frontier Materials, Inc. , SUP, Open-pit gravel mining
OFFICE OF THE CLERK TO THE BOARD
BY c J t t, 4O Kai . Deputy
The above mentioned hearing date and hearing time may be scheduled
on the agenda as stated above.
BOARD OF COUNTY COMMISSIONERS
WELD COUNTY, COLORADO
Lit,te; i. k. r
Hello