HomeMy WebLinkAboutEngineer's OWTS Design ReportGanTIELD CoUNTY OWTS Reponr
9200 Courury Rono 252
Gnnrrrlo CouNTY, Colonnoo
November 2020
Prepand by
SSGM
118 West Sixth Street, Suite 200
Glenwood Springs, CO 81601
970.945.10M
970.945.5948fax
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GnnnELD Courrlrv OWTS RTPoRT
9200 Coutrlw RoAD 252
Gnnnep CouNw, Colonnoo
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SGM Proje ct # 202O-575.001
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Tnele oT CONTENTS
1.0 lntroduction
2.0 Preliminary lnvestigation
2.1 Property lnformation
2.2 Public Health Agency Records
2.3 Topography
2.4 Soil Data
2.5 Location of Physical Features
2.6 Additlonal lnformation
2.7 Landscape Position
2.8 Natural and Gultural Features
2.9 Gurrent and Hlstorlc Land Use
3.0 Detailed Soil lnvestigation
3.1 Visual Evaluation
3.2 Tactile Evaluation
4.0 Recommendations
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LISI IN AppENDIX
Appendix
Drawing Ç.01
Drawing C.02
FEMA FIRM Map
NRCS Engineering Properties
NRCS Depth to Any Soil Restrictive Layer
NRCS Absorption Field Soils Data
TP-1 Depth Photo
TP-1 SidewallPhoto
SGM Soil Observation Logs TP-l
TP-2 Depth Photo
TP-2 SidewallPhoto
SGM SoilObservation Logs TP-2
SGM SoilTexture by Feel
Soil Textural Evaluation Photos
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l.0lntroduction
This report describes the results of a preliminary investigation, reconnaissance and detailed
evaluation to support design of an Onsite Wastewater Treatment System (OWTS) for the property
located at 9200 Coun$ Road 252in rural northern Garfield Gounty, Colorado.
SGM personnel contributing to this report are:
o Jeff Simonson - PE/CFM/ CPOW Certified Competent Technician/NAwT Certified Designer. Terry Bendetti - EI/CPOW Certified Competent Technician/NAWT Certified Designer
2.0 Preliminary lnvestigation
2.1 Propefi lnformatlon
Physical Addrcss: 9200 Gounty Road 252, Garfidd Gounty, Colorado, see Subject Property
Location Map in the Appendix.
Leqal Description: A parcel of land situated in sections 7 and 18, T4S, R93W, beginning at the
northwest oomer of Lot 4 of said section 7 and more particularly described in WD Record
#842557 . Account No. R083379, Parcel 1921 07 3O0O32.
Exisfing Sfrucfures; There is one existing structure on site, a 4 bedroom residence still under
construction.
Domestic Water: According to the Colorado Division of Water Resources there are no permitted
wells on the property. Potable water is supplied by a cistem, see drawing C.001 for location.
2.2Public Health Agency Records
This land is undeveloped, so a search of the public health records for past or cunent OWTS was
not made. ln addition, this land is agricultural, so contaminated soils or deposits are not expected
to be found.
2.3 Topography
The building site consists of an inigated field used for agricultural purposes. The surface slopes
towards the northwest. Beginning at the southeast portion of the subJect site the grade is
approximately 3%, reducing to 1o/o at the northwest portion. The area selected for the proposed
soil treatment area (STA) is in the 1% portion of the site.
See Figure I in Appendix A.
2.4 Soll Data
According to the Natural Resources Conservation Service Web Soil Survey the soils expected to
be found in the proposed location of the STA is Cochetopa-Jerry complex, which has a United
States Department of Agriculture (USDA) soil texture classification of cobbly clay at a depth of
between 40 to 60 inches, where the infiltrative surface will be located. ln addition, the NRGS soils
report indicates the depth to any limiting layer is greater than 6.5 feet and use for an absorption
field is very limited due to slow water movement through the soils. The NRCS Engineering
5
Properties Soil Report, Depth to Any Soil Restrictive Layer and Septic Tank Absorption Fields
have been added to the appendix.
2.6 Looatlon of Physloal Features
Physlcalfeatures on thê subJect propertythâtwlllrequlre m¡nlmum horizontalsetbacks are shown
ln the followlng Table. Alldlstances are In feet.
Setback requirements with superscripts may require encasement per footnote number 2, Table
7-f , section 43.7 of the Garfield County OWTS regulations. See Figure 1 in the Appendix.
2.6 Addltlonal lnformatlon
a. Suruey: Propefi boundary and building envelopes were developed in AutoGAD using
Exhibits developed by Bookcliff Survey Services, lnc. Topographical data was developed
from LIDAR data downloaded from USGS National Map Website. This information is used
for preliminary and finaldesign.
b. Easemenfs; Garfield County Road 252 passes through the propefi and is shown on the
OWTS plan. Features of the OWTS will not interfere with the easementforthe County Road.
c. Floodplain Maps: The project location is in an area of minimal flood damage. However,
there is no information available to generate a FlRMette map, but a FIRM map was
downloaded from the National Flood Hazard LayerViewer and included in the Appendix.
2.7 Landscape Posltlon
The landscape position for the STA is acceptable. The area where the STA will be located is not
impacted under existing conditions, nor will it be impacted underdeveloped conditions by
stormwater drainage. ln addition, the slope shape is linear - linear (LL). However, the STA is
located on a foot slope associated with complex slopes.
2.8 Natural and Cultural Featurcs
No natural or culturalfeatures were identified in the site reconnaissanoe.
2.9 Current and Historic Land Use
The subject project is in Garfield County's Rural zone district, which is for Agricultural and other
uses. Gunent and hlstoric land use has been agricultural, its future use is expected to also be
agricultural.
N/AN/AN/AN/A10N/AN/A100STA
N/AN/AN/A10N/AN/A50Effuent
Llne
N/AN/AN/A10N/AN/A50Septlc Tank
Septic
Tank
Gut
Bank
Water
Gourse
Drlruell/Stormwater
Struc{ure
Property
Lines
Struc'ture
with
Footlng
Drains
Potable
Water
Supply
Line
Cistem
6
3.0 Detailed Soil lnvestigation
A detailed soil investigation to detemrine the depth to the limiting layer and properly classiff the soil
type was conducted using Colorado Professionals in Onsite Wastewater (CPOW) Soil and Site
Evaluation methodology. Visual evaluation of two soil profile test pits were conducted in the field and
textural evaluation of samples collected from each test pit conducted at SGM's Office. The test pits
were excavated adjacent to the proposed location for the STA, see Figure I for locations. Visual
evaluation of both test pits was conducted under adequate light conditions with the soil being in an
unfrozen state.
3.1 Visual Evaluation
The Client's Contractor excavated two soil profile test pits, TP-1 and TP-2, adjacent to where the
STA will be located prior to SGM being on site. Test pit TP-1 was excavated to an approximate
depth of I feet, with groundwater nor bedrock being encountered, nor were there visible signs of
water when evaluated by SGM. According to the Client, test pit TP-2 was excavated to a depth
of approximately 4 feet due to the fact that the soils became too difücult for the small excavator
to remove. This was confirmed by SGM in collecting samples from the pits, the soils were very
hard and tightly compacted, it was difficult to collect samples from the pit side walls using a pick
hammer. The soils exhibited alltraits of a dry, tightly compacted clay. This appears to match the
NRCS soil data for a septic absorption bed as the tightness will slow the movement of water.
Both test pits exhibited topsoil with a root zone for the first 12 inches and one layer horizon from
the bottom of the topsoil zone to the bottom of each pit. Rocks were beginning to be visible at
the bottom of TP-1.
Soil samples from each pit were collected at the 4 foot depth and taken to SGM's Office for textural
analysis. Soil observation logs and photos can be found in the Appendix.
All measurements are from ground surface.
3.2 Tactlle Evaluation
SGM conducted a Soil Texture by Feel test on the soil samples collected from each test pit per
CPOW's methodology. Since the visual evaluation showed only one horizon layer, the 2 samples
collected from the test pits are representative of the limiting soil layer.
Gravels were present in both samples, but at a percentage less than 35%. Therefore, Table l0-
l, Section 43.10 of the Garfield County OWTS regulations was used to determine the long term
application rate (LTAR) for the soil type classification.
The soiltexture by feel method using the CPOW SoilTexture Flow Chartwas conducted on each
sample. Results are shown in the following table.
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SAMPLE
Depth ftom
Ground
Surface (ñ)
Does Soll
Form a Ball
(yeelno)
Does Soll
Form a
Rlbbon
lves/noì
*Type of Rlbbon
Formed (Weak,
tloderate,
Sûonql
How Does the Soll Feel
(Grltty/SmoothlNelther)
TP-1 4.0 Yes Yes Strono Smooth
TP.2 4.0 Yes Yes Strono Smooth*Weak < I inch; Moderate 1-2 inches; Strong > 2 inches.
From the results shown in the above Table the limiting layerwould have a USDA soil classification
of Silty Clay, soil type 4 or 44.
To determine the proper soil type, 4 or 4A, the USDA soil structure type and grade were used.
The following Table shows the soil's USDA structure type and grade determined for each sample.
SAMPLE
USDA Soll
Structure
Tvoe
USDA Soll
Structure
Grade
TP-I Prismatic Moderate
TP-2 Prismatic Moderate
According to Table 1 0-1 , section 43.1 0 of the Garfield County OWTS regulations both soil types,
4 and 44, can have a prismatic USDA soil structure type. However, only soil type 4 can have a
moderate USDA soil structure grade. As such, the limiting layer soil type is classified as soil type
4, having a LTAR of 0.20 for treatment level I (TL1).
The information provided in subsection 2.4 above supports this soil type classification.
SGM's worksheets for the Soil Observation Logs, Soil Texture by Feel and STA LTAR by Soil
Texture, Soil Structure and Treatment Levels can be found in the Appendix.
4.0 Recommendations
An OWTS for the residence with a septic tank and pumping system can be constructed at this site.
The effluent from the residence will be directed to a new septic tank and soil treatment area (STA).
The site of the proposed OWTS soil treatment area is northwest of the residence. The septic tank
will be installed a minimum of 5 feet from the northwest side of the residence. The OWTS STA site
elevation is 7,200 feet above sea level (NAVD 88).
Sewer Pipe: Sewer pipes shall be 4-inch SCH40 PVC pipe installed with a minimum slope ol2o/o.
Joints shall be solvent welded. Cleanouts are required l) at the stub out from the building (within 5
feet of building), 2) at spacing not to exceed 50 feet, and 3) upslope of two or more bends closer than
10 feet. Bends in the sewer pipe shall not exceed 45 degrees. The pipe shall be properly bedded
per the typioal trench detail presented on the deslgn drawlngs.
Sepfic Ianks: One new septic tank wlll be requlred. The septic tank will be a 1,250-gallon, two
compartment tank that will receive effluent directly from the proposed residenc€. The tank must be
on the Colorado Department of Public Health and Environment's accepted septic tank list. Eflluent
will be conveyed through 4-inch piping to the soil treatment ar€a using gravity. The tanks and lids
shall conform to cunent County OWTS regulations. The tanks shall be installed with insulated,
watertight access risers having lids that can be secured. Rlsers shall meet the tank manufacture/s
I
requ¡rements for type and installation. The effluent filter handle shall extend to within twelve inches
of the lid.
The septic tank shall: l) be located down gradient of the home, 2) have a covering of no more than
4-feet in depth, and 3) be at a location accessible for pumping and maintenance at the tank. The
installer must coordinate with the Owner as to the elevation of the stub out. A septic tank having a
thicker coverthan 4-feet will not be allowed
Distrtbution Box: The distribution box shall be centered as shown on the drawings in a manner to
distribute effuent equally to the trenches if trench alignment and/or locations change. The Engineer
should be contacted if alignments or locations change for verification regulation requirements are
maintained. The box, as shown, should be capable of one inlet pipe having an insertion point 1-inch
above outlet openings and at least 7 outlet openings and the ability to cap unused openings.
Soil Treatment Area: The STA shall be excavated as field conditions require using the following
guidelines.
1. Trenches shall no wider than 3-feet.
2. The infiltrative surface shall be no greater than 4-feet from the surface.
3. Trench lengths shall not be greaterthan 1O0-feet.
4. Trenches may be curyed, but cannot exceed the arc angle recommended by the
manufacturer.
5. Trenches shall be excavated following contours.
6. A minimum of 4-feet, measured sidewall to sidewall, shall separate trenches.
7. Trench floor shall be level.
L Chambers shall be placed per the manufacture¡'s directions.
Ghambers shallhave a minimum square footrage area of 10.8 square feet per regulation requirement
43.13.
The STA shall be covered with soil as described on the design drawings. This may mean that the
STA cover will need to be 16+-inches when initially placed to allow for settlement over the freeze-
thaw of a winter season. The surface of the STA shall be seeded afrer instrallation of the system. A
native, upland seed mix shall be used. These mixes do not require inigation and develop a growth
10 to l5 inches high. No automatic sprinkler system shall be installed overthe STA. Vehiculartraffic
and livestock shall be kept off of the STA. No landscaping, impervious surfaces or plastic sheeting
can be installed over the STA, which will reduce performance of the STA.
I
Appendix
Drawing G.0l
Drawing G.02
FEMA FIRM Map
NRCS Engineering Properties
NRCS Depth to Any Soil Restrictive Layer
NRCS Absorption Field Soils Data
TP-1 Depth Photo
TP-l S¡dewall Photo
SGM Soil Observation Logs TP-1
TP-2 Depth Photo
TP-Z Sidewall Photo
SGM Soil Observation Logs TP-2
SGM Soil Texture by Feel
Soil Textural Evaluation Photos
I
10
USDA
-
United States
Department of
Agriculture
NRCS
Natural
Resources
Gonservation
Service
A product of the National
Cooperative Soil Survey,
a Joint efiort of the United
States Department of
Agriculture and other
Federal agencles, State
agencies including the
Agricultural Experiment
Stations, and local
participants
Gustom Soil Resource
Report for
Rifle Area, Goloradon
Parts of Garfield and
Mesa Gounties
Kehr Residence
November 10,2O2O
Preface
Soilsurveys contain information that affects land use planning in survey areas.
They highlight soil limitations that affect various land uses and provide information
about the properties of the soils in the survey areas. Soil surveys are designed for
many different users, including farmers, ranchers, foresters, agronomists, urban
planners, community ofücials, engineers, developers, builders, and home buyers.
Also, @nservationists, teachers, students, and specialists in recreation, waste
disposal, and pollution control can use the surveys to help them understand,
protect, or enhance the environment.
Various land use regulations of Federal, State, and local govemments may impose
special restrictions on land use or land treatment. Soil surveys identiff soil
properties that are used in making various land use or land treatment decisions.
The information is intended to help the land userc identifu and reduce the efiects of
soil limitations on various land uses. The landowner or user is responsible for
identiffing and complying with existing laws and regulations.
Although soil survey information can be used for general farm, local, and wider area
planning, onslte investigation is needed to supplementthis information in some
cases. Examples include soilquality assessments (http:/fuiww.nrcs.usda.gov/wps/
portal/nrcs/main/soils/health/) and certain conservation and engineering
applications. For more detailed information, contact your local USDA Service Center
(https://ofüces.sc.egov.usda.gov/locator/app?agency=nrcs) or your NRCS State Soil
Scientist (http//wv.rw.nrcs.usda.gov/wps/portal/nrcs/detail/soils/contactus/?
cid=nrcsf 42p2_053951 ).
Great differences in soll properties can occr¡r wlthin short distances. Some soils are
seasonally wet or subject to llooding. Some are too unst¡able to be used as a
foundation for bulldlngs or roads. Clayey or wet soils are poorly sulted to use as
septlc ùank absorption fields. A hlgh water trable makes a soil poorly suited to
basements or undcrground installations.
The National Cooperative Soil Survey ls a joint efiort of the United States
Department of Agriculture and other Federal agencies, State agencies including the
Agricultural Experiment Stations, and local agencies. The Natural Resources
Gonservation Service (NRCS) has leadershlp forthe Federal part of the National
Cooperative Soil Survey.
lnformatlon about solls ls updated perlodlcall!. Updated lnformatlon ls avallable
through the NRCS Web Soil Surve¡ the site for ofrclal soil survey information.
The U.S. Department of Agrlculture (USDA) prohlblts dlscrimination in all its
programs and activitles on the basls of race, color, national origin, age, disability,
and where applicable, sex, marlt¡alstiatus, famlllalstatus, parentalstatus, religion,
sexual orienta-tlon, genetic ir¡Íormation, political bellsfs, reprisal, or because all or a
part of an lndlvldual's income ls derlved tom any publlc asslstance program. (Not
all prohiblted bases apply to all programs.) Persons wlth dlsablllties who require
2
It
altemative means for communication of program information (Braille, large print,
audiotape, etc.) should contac't USDAs TARGET Genter at(2O2172O-26O0 (voice
and TDD). To file a complaint of discrimination, write to USDA, Dlrector, Office of
Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C.20250-9410 or
call(800) 795-3272 (voice) or (202)720-6382 (TDD). USDA is an equalopportunity
provider and employer.
3
Contents
Preface......
Soll ftlap....
Soil Map (Kehr Residence)..........
Legend.......
Map Unit Legend (Kehr Residence)..........
Map Unit Descriptions (Kehr Residence)..........
Rifle Area, Colorado, Parts of Garfield and Mesa Gounties...............
19-Cochetopa-Jerry complex, 25 to 50 percent slopes........
32-Holdemess variant clay loam, 6 to 25 percent slopes........
Soil lnformatlon for All Uses........
SoilReports...
Soil Physical Properties.
Engineering Properties (Kehr Residence)........,.....
2
5
.6
7
II
11
11
12
14
14
14
14
4
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Soil Map
The soil map seetion lncludes the soil map for the deflned area of lnterost, a llst of
soil map unltrs on the map and oxtont sf eactr map unit, and cartographlc symbots
displayed on tho map. Also presented are varlous metadata about data used to
produce the map, and a descriptlon of eaoh soll map unlt.
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Are. of lntom* (AOt)
_] Arsadlnt€r€st(Aol)
9oll¡
I Soll MaP Unlt Polygons
,* Soil MaP UnitLines
I Soll MaP Unlt Polnts
Spodd Polnt Foeturo¡
Blowout
Borrow Pit
Clay Spot
Cþs€d D€Pression
Grsv€l P¡t
Gravo[y Spot
Landfill
Lava Flow
Marsh or swamp
M¡n€ or Quarry
Mþc€lþn€ous Watar
Per€nnial Wbtôr
Rod( OutcroP
Salin€ Spot
Sandy Spot
Sever€ly Erodod Spot
Slnl¡hole
$ide øSlip
Sodic Spot
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ffi VerySbnyspot
{f wet spot
å Oher
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lY.i.r Fcú¡lls
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Tramport t¡on
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,J lnbrstaþ Highways
,¿r* US Routos
Major Roads
Local Roads
Baclrgrcund
I A€ridPhotoSraphy
MAP INFORMATION
The soil survays that comprise yourAOl were mapped at
1:24,0ü).
Please rely on the bar scale on eacfi map sheetbr map
m6asurÊments.
Solce of Map: Natural Resot¡rces Consarvat¡on SeMce
Web Soil Survey URL:
Coordinata Syslem: Web Mercator (EPSG:3857)
MAP LEGEND
\lrlarningl Soil Map may not be valid at th¡s scâl€.
Enlargement of maps boyond the scaþ of mapp¡ng can ca¡s€
misr.¡nderctandlng d lhe detail of mapping and aco,rracy of soil
line placem€nt. The maps do not show the small areas of
contnasting soils that could have been shown at a more ddailed
scale.r$
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Maps frrom the Web Soil Survey are based on the Web Mercabr
projecfion, wh¡cñ pres€rv€s direcäon and shape but distorts
âþiance and ar€a. A pro¡ec{ion that Pr€ssves atta, such as the
Albers equal-area conic projection, should be used ¡f more
accr¡¡ate calq¡lations of distanæ or area are required.
This produc{ is gene¡ated fiorn the USDA-NRCS ceÉr'fied data as
of the version dat€(s) ¡¡st€d b€low.
Sc¡il Survey Area: Rif,e Arsa, Colorado, Parts d Garfeld and
Mesa Counties
SurveyArea Data: Version 13, Jun 5,2020
Scil map unÍts are labsled (as spaæ allows) for map scdes
l:50,flÐ or larger.
Date(s) aeial images were phoûographed: Dec 3t' 2009{ct
12,2017
7
The orüophoto or offier hse meP on wfiich the soil lines were
compiled and dþitized pmbably difrers frorn the backgrcund
Custom Soil Resource Report
ilAP LEGEND MAP INFORIiIATION
irngery@Þyed on these maps.As a r€sult, soçne mlnor
unit bowxledes be evüþnt
I
Custom Soll Resource Roport
Map Unit Legend (Kehr Residence)
Map Unit Descrlptions (Kehr Residence)
The map units delineated on the detailed soil maps in a soil survey represent the
soils or miscellaneous areas in the survey area. The map unit descriptions, along
with the maps, can be used to determine the composition and properties of a unit.
A map unit delineation on a soil map represents an area dominated by one or more
maJor kinds of soil or miscellaneous areas. A map unit is identiñed and named
according to the taxonomlc classification of the dominant soils. Within a traxonomic
class there are precisely defined limits for the properties of the soils. On the
landscape, however, the soils are naturalphenomena, and they have the
characteristic variability of all natural phenomena. Thus, the range of some
observed properties may extend beyond the limits defined for a taxonomic class.
Areas of soils of a single taxonomic class rarely, if ever, can be mapped without
including areas of other taxonomic classes. Consequently, every map unit is made
up of the soils or miscellaneous areas for which it is named and some minor
components that belong to taxonomic classes other than those of the major soils.
Most minor soils have properties slmilar to those of the dominant soil or solls in the
map unit, and thus they do not afiect use and management. These are called
noncontrasting, or similar, components. They may or may not be mentioned in a
particular map unit desoiption. Other minor components, however, have properties
and bchavloral charactcdsties divergent enough to afiect use or to requlre difierent
managemènt. These are called contrasting, or dissimilar, components. They
generally are in smallareas and could not be mapped separately because of the
scale used. Some smallareas of strongly contrasting soils or mlscellaneous areas
are identified by a special symbol on the maps. lf included in the database for a
given area, the contrasting minor components are identiñed in the map unit
descriptions along with some charac'tedstics of each. A few areas of minor
components may not have been obserued, and consequently they are not
mentloned ln the descdptions, especially where the pattem was so complex that it
was impracticalto make enough observations to identify allthe soils and
miscellaneous areas on the landscape.
The presence of minor components in a map unit in no way diminishes the
usefulness or accuracy of the data. The objectivc of mapping is not to delineate
pure taxonomlc classes but rather to separate the landscape into landforms or
landform segments that have similar use and management requirements. The
delineation of such segments on the map provides suffcient information for the
development of resource plans. lf intensive use of small areas is planned, however,
o
tap Unlt$ymbol tap Uñlt llamc Ao¡¡¡ ln AOI P¡rcrnt ofAOl
19 CocfietopaJerry complex, 25 to
50 pcrcent slopes
7.8 42.Oo/l
32 Holdemess vadant day loam, 6
to 25 pcrcent slopes
10.7 58.0%
Totals for Area ol lnten¡t 18.¿l 100.0%
Gustom Soil Resource Report
onsite investigation is needed to define and locate the soils and miscellaneous
areas.
An identiffing symbol precedes the map unit name in the map unit descriptions.
Each description includes generalfacts about the unit and gives important soil
properties and qualities.
Soils that have profiles that are almost alike make up a soi/ senbs. Except for
difierences in texture of the surface layer, all the soils of a series have major
horizons that are similar in composition, thickness, and anangement.
Soils of one series can difier in texture of the surface layer, slope, stoniness,
salinity, degree of erosion, and other characteristics that afiect their use. On the
basis of such difierences, a soil series is divided into so/ påases. Most of the areas
shown on the detailed soil maps are phases of soil series. The name of a soil phase
commonly indicates a feature that afiects use or management. For example, Alpha
silt loam, 0 to 2 percent slopes, is a phase of the Alpha series.
Some map units are made up of two or more major soils or miscellaneous areas.
These map units are complexes, associations, or undifierentiated groups.
A complex consists of two or more soils or miscellaneous areas in such an intricate
pattem or in such small areas that they cannot be shown separately on the maps.
The pattern and proportion of the soils or miscellaneous areas are somewhat similar
in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example.
An associafibn is made up of two or more geographically associated soils or
miscellaneous areas that are shown as one unit on the maps. Because of present
or anticipated uses of the map units in the survey area, lt was not considered
practical or neoessary to map the soils or miscellaneous aroas separately. The
pattem and relative proportion of the soils or miscellaneous areas are somewhat
similar. Alpha-Beta association, 0 to 2 percent slopes, is an example.
An unditrerentiated group is made up of two or more soils or miscellaneous areas
that could be mapped individually but are mapped as one unit because similar
interpretrations can be made for use and management. The pattem and proportion
of the soils or miscellaneous areas in a mapped area are not uniform. An area can
be made up of only one of the maior soils or miscellaneous areas, or it can be made
up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example.
Some surveys include miscellaneous a/êas. Such areas have little or no soil
material and support little or no vegetration. Rock outcrop is an example.
10
Custom Soll Resource Rcport
Rifle Area, Goloradon Parts of Garfield and Mesa Gounties
l9-Gochetopa-lerry complex,2S to 50 percent slopes
Itlap Unlt Settlng
National map unit symbol jnxg
Hevation: 7,000 to 9,500 feet
Ftost-free period: 45 to 75 days
Farmland classlfication: Not prime farmland
Map Unit Gomposltion
Cochetopa and srimi/ar soils: 50 percent
Jerry and similarsoíls;40 percent
Esfimafes are based on obseruations, desciptions, and fransecfs of the mapunit.
Descrlptlon of Cochetopa
Setting
Landform : Mountainsldes
Landform position (three-dimensional) : Mountainfl ank
Down-slope shape: Convex
Ácross-slop e shape: Convex
Parcnt matenþl: Alluvium derived from sandstone and shale and/or alluvium
derived from basalt
Typical profile
H1 - 0 to 21 inches; loam
H2 - 21 to 30 inches; stony clay loam
H3 - 30 fo 60lncåes; stonY claY
Propertles and qualities
Slope;25 to 50 percent
Depth to rcstrictive feature: More than 80 inches
Dninage class.' Well drained
RunolTclass; High
CapacÌty of the most limtting layertotransmitwater (Ksat); Moderately low to
moderately high (0.06 to 0.20 in/hr)
Depth to watertable: More than 80 inches
Frequency of llooding; None
Frequency of ponding; None
Available water capacity: Moderate (about 8.0 inches)
lnterpretlve groups o
Land capabillty classillcatlon (inþated): None specified
Land capabîlity classifrcation (noninigated): 7e
Hydrologic SorT GrouP; C
Ecologlcal sfte: R(XBAY238CO
Hydricsoilnafihg. No
Description of Jerry
Setting
La n dform : Mountai nsides
Landform position (three-dimensional) : Mountainflank
Down-slope såape: Convex
Across-slop e sha pe : Convex
11
Custom Soil Resource Report
Parent mateñaf Alluvium derived from sandstone and shale and/or alluvium
derived from basalt
Typlcal proflle
H1 - 0 to 3 inches: stony loam
H2 - 3 to 40 inches; cobbly clay loam
H3 - 40 to 60 inches; cobbly clay
Propertles and qualitles
S/ope;25 to 50 percent
Depth to restrictive feature: More than 80 inches
Drainage class.' Well drained
Runoff class: Very high
Capacity of the most limiting layer to tnnsmit water (Ksat); Moderately low to
moderately high (0.06 to 0.20|n/hr)
Depth to watertable.' More than 80 inches
Frequency of flooding: None
F req ue ncy of ponding; None
Calcium carbonate, maximum content:5 percent
Available water capacity: Moderate (about 8.1 inches)
lnterpretlve groups
Land capability classifrcation (inìgated): None specified
Land capabllity classifrcation (noninigated): 7e
Hydrologic Soll Gtoup: C
Ecological site: R048AY238CO
Hydrícsoflnafrhg; No
32-Holderness var¡ant clay loam, 6 to 25 percent slopes
Map Unlt Settlng
Natlonal map unitsymôol: jnry
Hevation: 6,500 to 7,500 feet
Fatmland classifrcatlon; Not prime farmland
Map Unlt Gomposltion
Holdemess variant and simllar soi/s; 90 percent
Mlnor componenfs.' l0 percent
Esfimafes arc based on obseruations, descnpfibns, and fäansecfs of the mapunit.
Descrlptlon of Holderness Varlant
Settlng
Landform: Valley sldes, alluvial fans
Down-slope såape; Convex, concave
Across-slope shape: Convex, linear
Parent materiaf Fine-textured sandstone and shale
Tlplcalproflle
H1 - 0 to 11 lnches; clay loam
H2 - 11 to 30 inches; clay
12
Guetom Soil Reeourco Report
H3 - 30 to 60 lnches; clay loam
Propertles and qualltles
Stope:6 to 25 percent
Depth to rcstrictlve featurc: More than 80 inches
Dninage class: Well dralned
Runütlass: Very high
Capaclty of the most llmlting layer to t¡ansmit water (Ksat); Moderately low to
moderately high (0.06 to 0.20 in/hr)
Depth to water table.' More than 80 inches
Frequency of flooding: None
F reque ncy of ponding: None
Calcium catbonate, maximum content: I5 percent
Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
Available watar capacity: High (about 10.6 inches)
lnterpretlve groups
Land capabiltty dassifrcatlon (inigated): None specified
Land capabtltty classifrcation (noninþated): 6e
HydrologlcSoll Group; C
Ecological site; R048AY247CO
Hydricsoílrafing; No
lllnor Gomponents
Dollard
Percent of map unit: 5 percent
HydricsorTnafing; No
Tanna
Percent of map unit:5 percent
Hydricsoílrafing; No
13
Soil lnformation for All Uses
Soil Reports
The Soil Reports section includes various formatted tabular and nanative reports
(tables) containing datra for each selected soil map unit and each component of
each unit. No aggregation of data has occuned as is done in reports in the Soil
Properties and Qualities and Suitabilities and Limitations sec{ions.
The reports contain soil interpretive information as well as basic soil properties and
qualities. A description of each report (table) is included.
Soil Physical Properties
This folder contains a collection of tabular reports that present soil physical
properties. The reports (tables) include all selected map units and components for
each map unit. Soil physical properties are measured or infened from direct
observations in the field or laboratory. Examples of soilphysicalproperties include
percent clay, organic matter, saturated hydraulic conductivity, available water
capacity, and bulk density.
Engineering Properties (Kehr Residence)
This table gives the engineering classifications and the range of engineering
properties for the layers of each soil in the survey area.
Hydrologic soil group is a group of soils having similar runofi potential under similar
storm and cover conditions. The criteria for determining Hydrologic soil group is
found in the National Engineering Handbook, Chapter 7 lssued May 2007(http//
directives.sc.egov.usda.gov/OpenNonWebContent.aspx?contenl=17757.wba).
Listing HSGs by soil map unit component and not by soil series is a new concept for
the engineers. Past englneering references contained lists of HSGs by soil series.
Soil series are continually being defined and redefined, and the list of soil series
names changes so frequently as to make the task of malntaining a single national
list vlrtually impossible. Therefore, the criteda is now used to calculate the HSG
using the component soil properties and no such nationalsedes lists willbe
maintained. All such references are obsolete and their use should be discontinued.
Soil properties that influence runofi potential are those that influence the minimum
rate of infiltration for a bare soil afrer prolonged wetting and when not frozen. These
properties are depth to a seasonal high water table, saturated hydraulic conductivity
after prolonged wetting, and depth to a layer with a very slow water transmission
14
Custom Soil Resource Report
rate. Changes in soil properties caused by land management or climate changes
also cause the hydrologic soil group to change. The influence of ground cover is
treated independently. There are four hydrologic soilgroups, A, B, C, and D, and
three dual groups, A/D, B/D, and C/D. ln the dual groups, the firct letter is for
drained areas and the second letter is for undrained areas.
The four hydrologic soil groups are described in the following paragraphs:
GroupA. Soils having a high infiltration rate (low runofi potential) when thoroughly
wet. These consist mainly of deep, well drained to excessively drained sands or
gravelly sands. These soils have a high rate of water transmission.
Group B. Soils having a moderate infiltration rate when thoroughly wet. These
consist chiefly of moderately deep or deep, moderately well drained or well drained
soils that have moderately fine texture to moderately coarse texture. These soils
have a moderate rate of water transmission.
Group C. Soils having a slow infiltration ratE when thoroughly wet. These consist
chiefly of soils having a layer that impedes the downward movement of water or
soils of moderately fine texture or fine texture. These soils have a slow rate of water
transmission.
Group D. Soils having a very slow infiltration rate (high runofi potential) when
thoroughly wet. These consist chiefly of clays that have a high shrink-swell
potential, soils that have a high water table, soils that have a claypan or clay layer at
or nearthe surface, and soils that are shallow over nearly impervious material.
These soils have a very dow rate of water transmission.
Depth to the upper and lower boundaries of each layer ls indicated.
Terture is given in the standard terms used by the U.S. Department of Agriculture.
These terms are defined according to percentages of sand, silt, and clay in the
fraction of the soil that is less than 2 millimeters in diameter. "Loam,'for example, is
soilthat is 7 to 27 percent clay,28 to 50 percent silt, and less than 52 percent sand.
lf the content of particles ooarcer than sand is 15 percent or more, an appropriate
modifier is added, for example, 'gravelly.'
Classiñcation of the soils is determined according to the Unified soil classification
system (ASTM, 2005) and the system adopted by the American Association of
State Highway and Transportation Ofücials (AASHTO, 2O0,!.').
The Unified system classifies soils according to properties that afiect their use as
construction material. Soils are classified accordlng to particle-size distribution of
the fraction less than 3 inches in diameter and according to plasticity index, liquid
limit, and organic matter content. Sandy and gravelly soils are identified as GW GP,
GM, GC, SW SR SM, and SC; silty and clayey soils as ML, CL, OL, MH, CH, and
OH; and highly organlc soils as PT. Soils exhibiting engineering properties of two
groups can have a dual classiftcation, for example, CL-ML.
The AASHTO system classifies soils according to those properties that afiect
roadway construction and maintenance. In this system, the fraction of a mineral soil
that is less than 3 inches in diameter is classified in one of seven groups from A-l
through A-7 on the basis of particle-size distribution, liquid limit, and plasticity index.
Soils in group A-1 are ooarse grained and low in content of fines (silt and clay). At
the other extreme, soils in group A'7 are fine grained. Highly organic soils are
classified in group A-8 on the basis of visual inspection.
lf laboratory datra are available, the A-1, A-2, and A-7 groups are further classified
as A-1-a, A-1-b, A-24, A-2-5, A-2-6, A-2-7, A-7-5, orA-7-6. As an additional
refinement, the suitability of a soilas subgrade materialcan be indicated by a group
15
Custom Soil Resource Report
index number. Group index numbers range from 0 for the best subgrade material to
20 or hlgher for the poorest.
Percentage of rockfngments larger than 10 inches in dlameter and 3 to 10 inches
in diameter are indicated as a percentage of the total soil on a dry-weight basis. The
percentages are estimates determined mainly by converting volume percentage in
the field to weight percentage. Three values are provided to identify the expected
Low (L), Representiative Value (R), and High (H).
Percentage (of soil pailicles) passing designated sieves is the percentage of the soil
fraction less than 3 inches in diameter based on an ovendry weight. The sieves,
numbers 4, 10,40, and 200 (USA Standard Series), have openings of 4.76, 2.00,
0.420, and 0.074 milllmeterc, respectively. Estimates are based on laboratory tests
of soils sampled in the survey area and in nearby areas and on estimates made ln
the field. Three values are provided to ldentiffthe expected Low (L), Representative
Value (R), and High (H).
Liqutd limitand plasticity rndex (Atterberg limits) indicate the plasticity
characteristics of a soil. The estimates are based on test data from the survey area
or from nearby areas and on field examination. Three values are provided to identiff
the expected Low (L), Representative Value (R), and High (H).
References:
American Association of State Highway and Transportation Officials (AASHTO).
2004. Standard specifications for transportation materials and methods of sampling
and testing. 24th edition.
American Society for Testing and Materials (ASTM). 2005. Standard classification of
soils for engineering purposes. ASTM Standard D2487-00.
t6
Custom Soil Resource Report
Absence of an entry indicates that the datia were not estimated. The asterisk'*' denotes the representative texture; other
possible textures to¡ow the dash. The criteria for determining the hydrologic soil group for individual soil components is
iound in the National Engineering Handbook, Chapter 7 issued May 2007(http://directives.sc.egov.usda.gov/
OpenNonWebGontent.aðpx?conient=17757.wba\. Three values are provided to identit the expected Low (L)'
Representative Value (R), and High (H).
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TI'IAP LEGEND MAP INFORMATION
The soil zurve¡æ that comgise yourAOl v¡ere mapped at
1'21,W0.
lirünlng: Sdl Map may nd be valid at üþ scd€.
Erilargemêntdmaps beyon¡l thescdeof mapfting cdl canse
m¡s¡nderstand¡ng of lhe detat dmappf¡g end æreT of sc¡l
line flaoement Ths mâDs do fddtorythe smal areas d
conüasüng sotsthatcould have been sÌpvm ata rnre d#lþd
scaþ.
Please rely on the b€rscde on eacù map eheetbr¡nap
measurements.
Sor.¡rce of Map: Naù¡rd Resources Conssntat¡on Soryioe
W€b So¡l 9lvey URL:
Coordinatasystem WebMelcdor(EPSG:3857)
Ma¡s fiorn üre Web Soü Survey are based on the llVeb llercaþr
prclecüon. wtricür pmservoe dif€dim aftl shepe hJt d!úûb
distance and ersa A Þn¡iacfion that pfssorv€s arEa e¡¡cñ as the
Albersequd-area conic pfection, shsÍd be used f rpre
accr¡rale calq¡lations of distanc€ oraraa arn rcquircd.
Thb product b goneraterl fro¡r ü€ USDAÉNRCS certified data as
of the version date(s) l¡st€d b€lont
Soi! Suwey Area R¡lo Aræ, Coþrado, Pa¡ts of Garfidd and
MesaCouñl¡æ
SurveyAræ tlda: VenSon 13, ü¡n 5,2Un
So¡l mep unitB æ l&þd (asspaæ aüows)for¡nap scdes
1:50,(Xþ or larger.
Dde(e) aerial ¡magôs wüe phdographed: Dec 31,2lX¡94ct
't2,2017
Theorüroplpto ordrerbase rnp m rùkå the scÍl lÍpewe
compilsd aftl rl¡güiz€d proOaUy difers tom Üte Hqgrq¡nd
imagldy dl8pbyed on these ¡naps. As a ¡PstJt, sorne minor
shiñûU of map uriit boundad€s may be evidøtt
Area of lnte¡¡st (AOl)
t] Area d lntersst (AOl)
So¡lô
Soll Rdng Polygons
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25 - 5¡)
50 - tfx)
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> 200
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,, 50-100
N 100-150
# 150-200
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I 0-25
25-50
50 - 100
100 - 150
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Depth to Any Soil ResÍictive Layer-Rifle Area, Golorado, Pañs of Garfield and Mesa
Gounties
9200 County Road 252, Rllle,
Colorado
Depth to Any Soil Restrictive Layer
Description
A "restrictive layef is a nearly continuous layerthat has one or more physical,
chemical, or thermal properties that significantly impede the movement of water
and air through the soil or that restrict roots or othenrise provide an unfavorable
root environment. Examptes are bedrock, cemented layers, dense layers, and
frozen layers.
This theme presents the depth to any type of restrictive layer that is described for
each map unit. lf more than one type of restric'tive layer is described for an
individuai soil type, the depth to the shallowest one is presented. lf no restdctive
layer is described in a map unit, it is represented by the n> 200' depth class.
This attribute is actually recorded as three separate values In the database. A
low value and a high value indicate the range of this attribute for the soil
component. A'representativen value indicates the expected value of this attribute
forthe component. Forthis soil propefi only the representative value is used'
Rating Options
Units of Measure; centimeters
Aggregation Method: Dominant Component
Component Percent Cutotr: None Speciñed
Tie-brcak Rule: Lower
lnterpret Nulls as Zero; No
100.0%65.9Totals for Area of lntero¡t
20-go/o13.877Tanna sllty clay loam, 25
to 45 percant slopes
64
28.8%19.0>200Holdemess varlant day
loam, 6 to 25 percent
slopes
32
2.4o/o1.677Dollad-Rock outcrop,
shale, complex, 25 to
65 percent slopes
24
47-golo31.6>200Cocietopa-Jerry
complex,23 to 50
percent slopes
19
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1112012020
Page 3 of3T,SDA
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Naüond Coopenative Soil Survey
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Page 2 of 5
MAP LEGEND MAP INFORMATION
Aroa of lnter€.t (AOl)
fl A¡eaoflntErest(AOl)
Soils
So¡ü Rdng Polygons
I V€ryl¡flt¡t€d
Ef Somowhatilm¡ted
I Notlhnit€d
Ef I'ldratedqnotavallaHa
Soll R.ü¡g Lln¡û
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¿y. Notlimited
) . Notratedornotaìralable
Solll Ratlng Polnts
Ë Veryl¡m¡ted
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E Not rated orndaveilâblê
ffier Featuros
Streams and Canals
Tlansportaüon
¡41r Ra¡ls
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#, US Routes
.,,, Major Roads
Læal Roads
Backgroünd
I A3ridPhobgråplry
The sot surv€ys thd compris€ yourAOl wo rnapp€d at
1:24,ffi.
Wâm[E: Soil Map may notbe yalld dth¡s $al€.
Enþrgm€nt d maps bsyond tÞ scde d m+ping oan sausa
rfandestafflkg düe deûall of meephg Íd æ¡rasydsdl
¡he placemont Th6 maps do nd sftw üþ srnet æas d
contrdrg ec¡iþthdcor¡ld have beensfiowt da mre dcialod
scalo.
Please relym the bar¡cale m eacñ map sù€dftmaP
m€asur€m€nts.
Sonce d Map: Nú¡ral Resq¡rces Conserva&¡n Sen*¡e
Web Soil Srrvey URL:
Coodûrata Systenr: Web i¡lercdor(EPsG3857)
MaF frorn üte W€b Soil Sunoy arc based on the tlÚeÈ ilercator
pmtecüqt, whícf¡ presgvee d¡€d¡on and st¡apo h¡t d¡¡torts
distanoe and area. A pfiieclion that Fesgrrrgs arsa, zudt as the
Albers €qualûr€a conic prortdiott, shodd b trsad if mora
accl¡reb cdq.datiqls ddislance or a¡ea atE rcquired.
Thb product ß genenabd torn üþ USDA+{RCS certified data as
dthe vssion clate(s) listeel bebur.
Soil SurveyArea: RibA¡ea, Cobtrado, Pa¡ts of GarfieldarÉ
M€sa Cq/nli€s
Survey Area Data: Vers&rn 13, Jwt 5, ãlíÐ
Soil rnp unib are lab€l€d (as space dloË)fur map scd6s
1:50,fl)0 or hrger.
Date(s) aerial imagss wera photograph€d: Dec 31,2fiF-Oct
12,2ú7
The oúophoto or oür€r bass map on whidrlhe soil lines we¡e
comdlod aßl digfr¡z€d proOaþlytlifiersfrom Û¡e badqnq¡nl
ûnærerydisplayed on thes€ rnaPs. As a rslt some mirpr
shifting of tnap unit boundaries may b€ evident.
Septic Tank Absorption Fields-Rif,e Area, Colorado, Parts of Garlïeld and Mesa Counües 9200 County Road 252, Rif,e,
Colorado
Septic Tank Absorption Fields
r00.0%65.9Tot¡l¡ for Area of lnú¡rust
20.9o/o13.8
Slour watsr
movcmcnt
(r.00)
Tanna (85%)VeryllmltedTanna siþ day
loam, 25 to 45
percant slopes
u
Depth to bedrcck
(1.00)
Slope (1.00)
28.80Ã19.0
Slope (1.00)
Holdemess
vadant (9096)
VeryllmitedHoldemess
varlant day
loam, 6 to 25
percent slopes
32 Slorv water
movement
(r.00)
2.4o/o1.6
Depth to bsdrock
(r.00)
Dollard (60%)Very limltedDollard-Rod<
outcrop, shale,
complex, 25 to
65 percent
slopes
24
Slope (1.00)
Slour water
movemènt
(1.00)
47.9%3r.6
Large stones
(0.36)
Jerry (40oÁ)
Very limitedCochetopa-Ierry
complex, 25 to
50 percent
slopes
19
Slope (1.@)
Slorwater
movom€nt
(1.00)
Slope (1.00)
Cochetopa
(50016)
Slourwater
movcment
(r.00)
Perocnt ofAOlAcr¡¡ ln AOIRúlng llasong
(numcrlc
valucs)
Gomponcnt
name (pacont)
Ratlngtep unlt namctap unlt
symbol
100.0%05.9Total¡ for Arc¡ of lnt¡n¡t
100.0%65.9Verylimlted
P¡rcrnt ofAOlAon¡lnAOlRdln¡
HË Natural Re¡ourcos
Gon¡eryatlon Servlce
Web Soil Survey
Natlonal Cooperatlve Soll Survey
1112012020
Page 3 of 5
Septlc Tank Absorpt¡on Fields-Rife Area, Colorado, Pads of Garfield and Mesa Counües 9200 County Road 252, Rlf,e,
Colorado
Description
Septic tank absorption fields are areas in which efiuent from a septic tank is
distdbuted into the soil through subsurface tiles or perforated pipe. only that part
of the soll between depths of 24 and 60 inches is evaluated. The ratings are
based on the soil properties that afiect absorption of the efruent, construction
and malntenance of the system, and publlc health. Saturated hydraulic
conductivity (Ksat), depth to a watcrtable, pondlng, depth to bedrock or a
cemented pan, and flooding afiect absorption of the efruent. Stonos and
boulders, ice, and bedrock or a cemented pan interfere with installation.
Subsidence interferes with installation and maintenance. Excessive slope may
cause lateral seepagê and surfacing of the effuent in downslope areas.
Some soils are underlain by loose sand and gravel or fractured bedrock at a
depth of less than 4 feet below the distribution lines. ln these soils the absorption
fleld may not adequately fllter the efrluent, particularly when the system is new.
As a result, the ground water may become contaminated.
The ratings are both verbaland numerical. Rating class terms indicate the extent
to which the soils are limited by all of the soil features that afiect the specified
use. "Not limited" indicates that the soil has features that are very favorable for
the specified use. Good performance and very low maintenance can be
expected. "Somewhat limlted" indicates that the soll has features that are
moderately favorable for the specified use. The limitations can be overoome or
minimized by special planning, design, or instrallation. Fa.ir performance and
moderate maintenance can be expected. l/ery limited" indicates that the soil has
one or more features that are unfavorable for the specified use. The limitations
generally cannot be oyercome without maior soil reclamation, special design, or
expensive installation procedures. Poor performance and high maintenanoe can
be expected.
Numerical ratings indicate the severity of individual limitations. The ratings are
shown as decimalftactions ranging from 0.01 to 1.00. They indicate gradations
between the point atwhlch a soilfeature has the greatest negatlve impact on the
use (1.00) and the point at which the soil feature is not a ltmltation (0.00).
The map unit components listed for each map unlt ln the accompanying
Summary by Map Unit table ln Web Soll Survey or the Aggregation Report in Solt
Data MEwer are determined by the aggregation method chosen. An aggregated
rating class ls shown for each map unit. The components llsted for each map unlt
are only those that have the same rating class as listed forthe map unit. The
percent composition of each component in a particular map unit is presented to
help the user better understand the percentage of each map unlt that has the
rating presented.
Other components wlth difierent ratlngs may be present in each map unlt. The
ratings for all components, regardless of the map unit aggregated rating, can be
viewed by generatlng the equivalent report from the soil Reports tab in web soil
Survey or from the Soll Data Mart site. Onsite lnvestigation may be needed to
velldate these Interpretatlons and to conffrm the ldentlty of the soll on a glven
site.
sË Con¡rmüon Sc]vlco
. Web Soll Survey
Naüonel Coopenatlve Soll Survey
11120t2020
Pags 4 of 5
Septic Tank Absorption Fields-Rlfle tuea, Colorado, Parts of Garlield and Mesa Counties 9200 County Road 252, Rifre,
Golorado
Rating Options
Aggregation Method: Dominant Condition
Aggregation is the process by which a set of componont attribute values is
reduced to a single value that represents the map unit as a whole'
A map unit is Çpically composed of one or more "components". A component is
either some type of soil or somê nonsoil entity, e.9., rock outcrop. For the
attribute being aggregated, the first step of the aggregation process is to derive
one attribute value for each of a map unit's components. From this set of
component attributes, the next step of the aggregation process derives a single
value that represents the map unit as a whole. Once a single value for each map
unit is derived, a thematic map for soil map units can be rendered. Aggregation
must be done because, on any soil map, map units are delineated but
components are not.
For each of a map unifs components, a coresponding percent composition is
recorded. A percent composition of 60 indicates that the conesponding
component typically makes up approximately 60% of the map unit' Percent
composition is a critical factor in some, but not all, aggregation methods.
The aggregation method "Dominant Condition" first groups like attribute values
for the components in a map unit. For each group, percent composition is set to
the sum of the percent composition of all components participating ln that group.
These groups now represent "conditions' rather than components. The attribute
value associated with the group with the highest cumulative percent composition
is returned. tf more than one group shares the highest cumulative percent
compoSition, the conesponding "tie-breaK' rule determines which value should
be retumed. The "tie-breaf rule indicates whether the lower or higher group
value should be retumed in the case of a percent composition tie. The result
retumed by this aggregation method represents the dominant condition
throughout the map unit only when no tie has occuned.
Component Percent Cutofr: None SpeciÍied
Components whose percent composition is below the cutofi value will not be
considered. tf no cutoff value is specified, all components in the database will be
considered. The data for some contrastlng soils of minor extent may not be in the
database, and therefore ar€ not considered.
Tle-brcak Rule: Higher
The tie-break rule indicates which value should be selected from a set of multiple
candidate valuês, or which value should be selected in the event of a percent
composition tie.
T.$DA
-
Natur¡l Rosources
Gon¡ervatlon Servlce
Web Soll SurveY
National Cooperatlve Soll SurveY
1112012020
Page 5 of 5
È
É
\
'. ,À*-
^ßi -
4
tg
#SGh4 Soll Frofile Test Fit Graphic Log Number:tu(
0 I 76s2
WIDI}I IN FEET
3 4
Ground Surfacc
4
1
2
3
bl¡,r¡.]
kulê
5
6
7
I
o
)
-v )..s
\i
I
I L -<ı t*.K ¡.'x¡",4.
(I (/ì I ,â (,t (
+r0 t ê ¡
1)I c P ft t)I
1a,U tî R ,Å R þ ,A
a )i t Æ
I I
U a )+f1 â t¿å I
/.h f rP L /
þ I (Iô
r /
tII
gsGh'r
SOIL PROFITE TEST P¡T tOG
IA SEPARATE tOC SHAtt BE COMPTETED FOR EACH SOIL PROFI]E TEST PM
Property ö
Test P¡t 7f*t Date of Loggi
ßangc of Dcpth of Soll
Horkon, ßelatþe to Ground
Surf¡ce
USDA Soll Texture
USDASoII
Structure -
Type
Soll Structure-
Gradc
SollType
ffablc 10 or'R'
Solls ln T¡ble
111
4^O q'll.,flor,fllo,l-",tvl-"J,u, ^ lÌ*4
/((
Redoxlmorphlc
Fc¡turc¡
Prc¡ent? (Yfir,
Notes:
ls there a limiting layer as defined ln Regulation 0-17? Et Yes WG
lf yes, deslgn document must explain how the llmltlng condltlon is addressed.
ls Dawson Arkose (DA) or Cemented Sanri (CS) present? tr Yes EfÑo
lf yes, please answer the following:
ls materlalfractured and/orlolnted? tr Yes E No
What ls the cementatlon class?
ls the Dawson Arkose or Cemented Sand a limitlng layer per section 8.78.2 ol GL7? E Yes El No
Soil Obse¡ vation Log gSGlt4
Foot
Atluuium Loess Orgnnic Matter BedrockOutunsh
all that
SoilParent
/_,LToe Slope SlopeSloBe
one
Lâ
Elevation:
MapSoilSurveyc.i ¡a. á u¡.SVegetation: à(1ø*
of Day:Weather conditionsfilme Observation */LocatlonlMethod¡
legal Desclption/GPS:Client/ Address:Date:
Rock Metrh Mott¡e Redox.Stfucture Strusture Consistence
6radcDepth (ln)
Comments:
Texture x
l¡os€
Frleble
Loosr
Frlable
Rfm
Ecrerltlh Flrm
Rrdd
Loo6e
Frlabts
Flrm
Ecttmely Flnû
R¡¡ld
Loosr
FrLble
Flrm
Erfrèmtly F¡tm
Rlgld
tôosc
Friett€
Fifm
Enremely Firm
Rrgld
¡ooscçbor ,/ri*)1
ercln¿hr¡rm
nfu¡o \
Wcak.ffi;;ñÞ
ËTffi"J*'
Loose
wêak
Modrrete
Stron!
Logse
Mwcrtrc
Strò¡Í
Lodsä
wGa¡ß
Weel
Mod€r.tc
Stroî8
toosc
wa¡k
Mdcråtc
srtrong
I¡o¡a
wrat
Modefate
Strong
LooSe
Gnnsbr
PþtT ?g#t "/nr\re
lfih\rlnnüúhrc\
Grrnubr
Plrrv
I,to-dntÈ
"rbrll¡llc/W.ããJ'r
MrshrÊ
Gflrulrt
Pl¡tT
8þd.y
Pfbm¡rk
$eíaGn¡n
Mahn
Gðfid¡r
Pllty
üocry
Pdgnrdc
S¡ql.Gnlñ
tlrß$ra
6fürht
HY
¡bctr
Prbírdc
Sfir¡lcGr.år
ur¡hrÊ
Gr¡ûul¡r
PLty
Sbcfy
È1rrâr¡¡q
S¡]!bGðln
M¡úsþË
äî'ceqrtntørri
Deplegàï-,Glded ''"
Concentrations
Depletions
6leyed
Concentrãt¡ons
Eepletions
Gleyed
Concentratlons
Depletions
Gleyed
Concentrat¡ons
Depletions
Gleyed
'lFi "'
Ít*;>"¿ o'"v'' ì,{** rr#
-x,
I :,Å- r
-/l/oy s,>. !'JI'
l,ù'-&.r'
Cert¡ficd Strtament I hercÞT ccrt¡fy ü¡t I hevc comPlctcd tttis
wort in accoldance wlth alt applloblc ordln¡ncca, rules and laws'
þi'.
!
i
I
¡
F
ffisGh4 Soll Proffle Test Plt Graphtc log t\turnber: 71.*
0 I 7542
W¡DTH IN FEET
3 6
Gro¡¡¡rd Surf¡cc
4
1
2
3
hl¡¡la.
^Ê
Ël¡lo
5
6
7
I
o
i
J
8":"J ir, .&
G irr ir.Y f^._f,<lt
I t
CJ I e(f I,Èr f,,
^.
ß J-> .'-ê (p t-ß ft\
"-Å €'\I ¿I ,L {
et
R þ¿l*Lr )€
^.Í)I t-¡0
ál\)¡*îe (r re I
12 +e r ,
H
IIII
III
II
Soil Obse,.ration Log {åsGh'l
n".#&4"Jn,3'"1¡iweor
g,í-ï ,
Elevation: 7/P ¡:¿ Obsen¡ation
þ1t,,,ïÌ|-q¿¡q.. 'Suruey Map
'5¿f ¿'Õ
Landscape Þsitþn:Foot Slope
Atluúum lsess Organlc Matter BedrockOutwash
(circle all that
SoilParent
/roClient/ Address:Legnl Description/GPS;Date:
Depth (ln)
Comments:
Texture Rock Matrh Mottle Redor Structure Strusture Consistence
Grade%
ûóv'**-c
c -û. b7/
,/? tt ¡alÇ. *á;,,
-1/of sr¡j
{
¡K4
Àh:l
Concentrations
Depletions
Gleryed
Concentrations
DepÞtions
Gleyed
Concentrations
Deple$ons
ClepO
Gleyed
Depletions
Concentrations
Concentrat¡ons
Depletions
Gleyed
Pl¡tt
Gr¡ad¡t
8loclry
trl¡¡ûata
gr¡hCr.¡ì
tl¡¡eh,è
cranshrtht
Slody
PÙ¡n¡t.gl|hGr¡¡r
llßhn
Gnfldat
¡hv
lþtï
Prt¡lndc
$nabCrdlr
;llßhn
Gnndar
PLty
Blod.y
trl¡Írd¡c
$rt¡lcGn¡r
ta¡¡t.
Granuli¡r
PI¡IYt@ffir¡uc
S¡l|bGner
ltl¡¡hn
6rúdar
PLtr
do.fy
Pf.lfnaüc
9¡l¡l.6r.br
M¡¡råË
WÊ¡t
Moder¡te
Stroog
loose
llrcak
liodcr¡tÊ
$ront
to6r
WCåT
r,b.tcr¡tè
Sßront
l¡osê
wcak
Modcrôte
Strong
l¡e
wÊ.k
Moderðte
Strong
loose
l¡ose
FrÞbþ
F¡rÍì
EÛCÍIGIYF¡IM
ßbid
Loo¡Ê
Frl¡bþ
Flññ
E¡rrsrl3lyF¡rm
trE¡d
toose
Frl¡hle
Fhm
E¡.t¡lmêhFhm
rud
l¡oec
Fr&¡túe
F¡m
E¡arcmdyFlm
ilgld
g,fr;,-
-Strøt3
I t-oæe
I ¡a"at"
þol¡ose
wêak
loo¡e
Fr¡abb
Fúrn
furÊmcþFnm
Rrdd
Cert¡ñed St¡tcnent! I hcnsbü cêrüfy th¡t I h¡vc.conrPl€tcd thb
wort in accordance wtür all appllcrblc ordlnanecs, ruls and lrws 1" - - / ßo*Åef/.!{;!q3Ð ," /nf^.
gsGh4
SOII PROFITE TEST PIT I.OG
fA SgPARATE rOG SHALL BE COMPLETED FOR EAFII SOlt PROFII'Ë rESrllD
Property Add aO
Test Pit Numbe r:fP-%.Date of
ßange of Depth of Soll
Horlzon, Belatþe to Ground
Surf;¡ce
USDASollTexture
USDA Soll
structure -
Typc
Soll Structure-
Grade
SollType
fiable 10 or "R"
Solls ln Table
111
Redoxlmorphlc
Fcrü¡rcs
Prccem? ÍY/lúl
Á r>t ç.')t^, (/o *Rt^. L.-th ^-ßnn"* i't'-À/
/{/
Notes:
ls there a llmiting layer as defined in Regulation 0-17? El Yes Ê6-
lf yes, deslgn document must explain how the llmltlng condltlon ls addressed.
ls Dawson Arkose (DAl or Cemented Sand (CS) Bresent? Ei Yes Ñ
lf yes, please answer the following:
ls material fractured and/or lointed? tr Yes EI No
What ls the cementation class?
ls the Dawson Arkose or Cemented Sand a limiting layer per section 8.78.2 of 0-17? E Yes E No
Determining Soil Texture by the "Feel Method"
-
r>
NO
0 -f596 t'
Ρrtu¡¡ Gle¡slllcetlonC = CoarseMC = Moderately CoarseM = MedlumF = Fine
YES YES
SAND
NO
0-10% tr c.
LOATT|Y
SANDcr
YES
NO NO Does the soll make a
strong rlbbon 2'or
longer beforo
breaking?
YES YES
soll ln
and rub
Sandy
Clay
Loam
MC
feel very
Does the soll feel very
smooth?
ç27%
NO
Nelther grltllnese nor .
smoothness
predomlnates
Sand Partlcle slze should be eetlmatcd (vcry finc, fine, medlum, coane) for these textures. lndlvlduel gralne of ygg¡flp aand are not vlelble without,
magnllcatlon and there ls a grltty feollng to a very small sample ground betwecn the teelh. Some ftæg¡¡! parllcles may be Just vlslble. Ug!!U I
sand particles are easlly vlslble. Examples of sand slze descdptions where one slze ls predomlnant arg; very ffne eand. flno eandy loam, loamy L
ooarse sand,
cey psrc€ntegs Íang€. I
I
tlodlñod ffom: Thlen, Súeven J., lGn¡a¡ ¡taúo Unlverrlty, lg79 Jour. Agronomyeducatlon.
\
-
d>
Sandy
Loam
MC
Sllt or
sr¡u
Loam
M
YESF
2È35Vo
YESF
27.{¡09É
ìGSF
2710%
NONO
YES
(-
È20%
(r
YESF
7-noYo
NO
YES I
Loam
M
YESts
4V100%
*
Add dry soil to soak up
$r¡tÍ.
ls the soil too ¡vet?
Place
tlme
d aatdrop
the p¡op€r
rnaDoes soil
ball whcn
ls the soll to dry?
Place ball of soil betr¡een thumb and forefingcr, gentþ pushlng the soil
with the thumb, uorting it upuard lnto a dbbon. Fo¡m a ribbon of unlform
thlckness and wldth. Allowthe rlbbon to emerge and cxtend overthe
forellnger, brealtlng lhom lts own
Does the
rlbbon?
fom a
Does the soll make a
uoak dbbon less than
f 'long before
breaklng?
Does the soil make a
medium ribbon I'lo 2'
long before breaking?
Exceeslvcly wet a
small plnci of soil ln
palm of hand and rub
with foroflnger.
Excesslveþwot a small
plnct of soll ln palm of
hand and rub wtth
foreffnger.
small
pdm of
wlth
Does the soll feel
very grltty?
Does the soll feel very
Srlttlr?
Does the
Sdtty?
Sandy
Glay
MC
YES
YESF
3S55%
NO
YESDoes the soll feel
very smooth?
Does lhe soll feel very
smooth?
Sllty
Glay
F
Nelther grittlness nor
smoothness
pr€domlnåtæ.
Neither grlttlness nor
smoolhness
predomlnates
Silty
Clay
Loam
F
Glay
Loam
F
Clay
F
**
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ç
dtr
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