HomeMy WebLinkAboutOWTS Engineer Design ReportGnnTIELD COUNTY OWTS RTPONT
0982 CouNrY Rono 245, NEW Cnsrlr
GnnnELD CouNTY, ColonADo
February 2023
Prepared by
t
*
þrrÍ:
SSGM
118 West Sixth Street, Suite 200
Glenwood Springs, CO 81601
970.945.1.004
970.945.5948 fax
GnnTIELD CouNTY OWTS Rrponr
0982 Courury Rono 245, NEW Cnsrlr
GnnnELD Courury, CoroRADo
"l hereby affirm that this Onsite Wastewater Treatment System (OWTS) report for 0982 County
Road 245, New Castle, Garfield County, Colorado was prepared by me, or under my direct
supervision, for the Owners thereof in accordance with the provisions of Garfield County's OWTS
Regulations and approved variances and exceptions listed thereto. I understand the County does
not and will not assume liability for owrs facilities designed by others."
Rick L B
by Rick L Berth
O=SGM,
Engr, Civ Svcs",
Barth
reviewed this
08:39:02-06'00'
Licensed Professional Engineer, State of Colorado
License No.
(Affix Seal)
PRrpRnpo By:
Tnyron MATSoN, NAWT/Soll Cenrlneo
RIcx L BARTH, PE 36749
SGM Proje ct # 2023-145. 00 1
2
TnaLr Or COruTENTS
L0 lntroduction
2.0 Preliminary lnvestigation
2.1 Property Information
2.2 Topography
2.3 Soil Data
2.4 Location of Physical Features
2.5 Additionallnformation
2.6 Landscape Position
2.7 Natural and Cultural Features
2.8 Gurrent and Historic Land Use
3.0 Detailed Soil Investigation
3.1 Visual Evaluation
3.2 Tactile Evaluation
4.0 Recommendations
5.0 Installation Observations
6.0 Operation and Preventative Maintenance Schedule
7.0 Limitations
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Appendix
OWTS Plan Sht 1
OWTS Details Sht 2
NRCS Soils Map
NRCS Absorption Field Soils Data
NRCS TexturalTriangle
SGM Soil Observation Logs
SGM SoilTexture by Feel
OWTS Design Spreadsheet
FEMA FlRMette 0802051 01 58
4
1.0 lntroduction
This report has been developed for the subject property which
¡ ls classified as 10 AC TO L/T 35 AC
. ls comprised of 32.435 acres
. ls located a|982 County Road 245, New Castle, CO 81647
2.0 Prelimi nary lnvestigation
2.1 Property Information
Owner: YOUNG, SCOTT & HITCH YOUNG, HEIDI ANN
Leqat Description: Section: 30 Township: 5 Range: 90 A TR lN LOTS 1 & 2. AKA LOT2 GREENE
SUBDIVISION EXEMPTION
Existing Structures: None. Former home site that burned down.
Domestic Water: There are no wells located within the proposed area of the OWTS
Sépfic: There is no existing OWTS on the parcel
2.2Topography
Topography in the vicinity of the new OWTS slopes from generally northwest to southeast at
grades between 6-10 Percent (%).
2.3 Soil Data
According to the Web Soil Survey for the Natural Resources Conservation Service (NRCS) soils
associated with the subject property are classified as map unit 67. NRCS soil unit 67 is
Torriorthents- Rock outcrop complex, steep, which has grades between 15 to 70 percent. This
does agree with field observations.
NRCS soil data indicates Torriorthents- Rock outcrop complex, steep is very limited for septic
tank absorption fields due to slope and depth to bedrock. This does not agree with field
observations as we did not encounter bedrock in test pits excavated to a depth of I feet. Visual
observation of the soils in the excavated test pits indicated the soils have blocky characteristics
with a moderate to strong structure.
Ptotting the percentages of clay (20.0%), sand (61 .2%) and silt (18.8%) published by the NRCS
for thiJsoil unit on the USDA Textural Triangle indicates the soils would classify as a sandy clay
loam, soil type 3 or 34. Soils having a classification type of 3 or 3A are suitable for absorption
fields, with type 3 soils having a long-term application rate (LTAR) of 0.35 gallons per day per
square foot óf area (gpd/ft2) and 0.30 gpd/ft2for type 3A soils. Sandy clay loam soils with blocky
characteristics and a moderate to strong structure are classified as type 3.
5
2.4 Location of Physical Features
Physical features on the subject property that will require minimum horizontal setbacks are shown
in the following Table. All distances are in feet.
Potable Water
Supply Line
Structure with
Basement, Crawl
Space, Footing
Drains
5
0
20
Property
Lines
Septic
Tank
Septic Tank
Effluent Line
STA
'10
5
25
10
t0
10 Â
2.5 Additional Information
a. Easements: No existing easements are present in the proposed area.
b. Floodplain Maps: The proposed location does not reside within the Colorado River 1oo-year
flood plain.
2.6 Landscape Pos¡t¡on
The landscape position for the STA is considered mildly Linear Concave above the STA to Linear
Linear at the STA in the native topography. Modifications for STA construct¡on shall easily divert
flows to a more distributive form of Linear Convex. Flows uphill can be easily diverted in minor
swales south and east and the STA should not pond water.
2.7 Natural and Gultural Features
No natural or cultural features were identified in the site reconnaissance.
2.8 Current and Historic Land Use
The subject property is in Garfield County in a subdivision zoned as rural land and is expected to
remain so in the future.
3.0 Detailed Soil lnvestigation
A detailed soil investigation to determine the depth to the limiting layer, if any, and properly classify
the soil type was conducted on February 17th,2023. Visual evaluation of 2 soil profile test þits werå
conducted in the field, and samples were collected from each test pit. The soil texture by feel method
was utilized to classify the soil type that will receive wastewater effluent.
Test pits were excavated adjacent to the proposed location for the STA installation (noted on sheet I
oltne_ site drawing). Visual evaluation of both test pits was conducted under adequate light conditions,
with the soil being in an unfrozen state as they were freshly dug.
3.1 Visual Evaluation
2 test pits were excavated by the Owner prior to SGM personnel being on site, The test pits were
labeled by SGM personnel as TP-1 and Tp-2.
6
Both test pits TP-landTP-2 exhibited topsoil with a root zone for the first 0 to 6 inches. From 6
inches to 96 inches the soils were light brown and would be classified as sandy clay loam with a
minor percentage (<10o/o) of rock.
Excavation was terminated at a depth of I feet for both TP-1 and fP-z. Neither pit showed signs
of:
o A limiting layer.
o Presence of groundwater
Soil observation logs and photos can be found in the Appendix.
All measurements are from ground surface.
3.2 Tactile Evaluation
On February 2O,n and22nd,2023 SGM conducted the soil textural byfeel evaluation on the soil
samples collected during the visual evaluation of the test pits. Results of the soil gradation
revealed:
1. Total sample size = 1,000 ml; both samples.
2. Volume of rock > 35 mm (314"¡ = minimalfor all samples
. TP-1 (1): 0%. TP-1 (2):0%
o TP-2 (1) . 1o/o
. TP-2 (2):0%
3. Volume of rock > 2 mm (0.079') = minimal for all samples
o TP-1 (1):6%
o TP-1 (2) .7o/o
o TP-2 (1):3%
¡ TP-2 (): a%
4. Percent rock in sample (35mm and 2mm combined)
. TP-1 (1):6%
o TP-1 (2) :7%
o TP-2 (1) . a%
c TP-2 (2): 4o/o
Soils are not type "R .
Performing the soil texture by feel methodology on the non-rock portion of the sample are shown
in the following table.
7
SAMPLE
Sample
Depth from
Ground
Surface (ft)
Does Soil
Form a Ball
(yes/no)
Does Soil
Form a
Ribbon
lves/no)
*Type of Ribbon
Formed (Weak,
Moderate,
Stronq)
How Does the Soil Feel
(G ritty/Smooth/Neither)
TP-1 (1)8"-12"Yes Yes Moderate Gritty
TP-1 (2)86"-96"Yes Yes Moderate Grittv
TP-2 (1)B',-12"Yes Yes Moderate Gritty
TP-2 Q\86"-96"Moderate GrittvYesYes*Weak < 1 inch; Moderate 1-2 inches; Strong > 2 inches.
Results shown in the above table indicate a USDA soil classification of silty clay, soil type 4 or
4A.
To determine the proper soil type, the USDA soil structure type and grade were used. The
following Table shows the soil's USDA structure type and grade determined for the sample.
SAMPLE
USDA Soil
Structure
Tvoe
USDA Soil
Structure
Grade
TP-1 (1)Blocky Moderate
TP-1 (2\Blockv Moderate
TP.z (\Blocky Moderate
TP-z (2\Blocky Moderate
According to Table 10-1 , section 43.10 of Reg43, soil types 3 and 3A can have a blocky structure
type, but only soiltype 3 can have a moderate soil structure grade. As such, the soil to receive
the effluent waste is classified as soil type 3. Soiltype 3 has a LTAR of .35 gpd/ft2 for application
of etfluent treated to treatment level 1.
4.0 Recommendations
Per Table 6-1 of Reg43 the design flow rate wiil be 52sgpd (gallons per day)
# Bedrooms
The proposed OWTS is suitable for this site based on a design flow rate of 525 gpd
the system shall have:
At a minimum,
. A 1250 gallon two chamber septic tank installedo A distribution box with no less than I ouflets. A bed system with 2 beds each containing 4 rows of 14 chamberso 4" diameter influent and effluent lines.
lnflr Ianf frnm flra ¡noiÀa^^^ ..,;ll 1^.^ ^^Á.,^.,^t ¡L-^..^L art )i^-- -r^- ñ\ t^ tr,- - -¡¡¡ríuçr¡r ¡ru¡rí ilrË rvìtiuËilue wiil ut-= uoíìVey"eû ini'Ougn 4" ûiai-iteief i-VL; iineS, try gravity, tO theproposed septic tank inlet. The new 125O-gallon septic tank shall be installed utiiizing the port
knockouts and typical piping connections. Discharge shall be gravity to a distribution manifold to the
two beds.
The OWTS STA site elevation is approximately 5824.5 feet above sea level (NAVD 88) and it will be
located south of the proposed residence.
8
Occupancy (# of
Persons)
Wastewater Flow per
Person Design Flow (gpd)
4 7 75 525
Sewer Pipe: Sewer influenVeffluent pipe shall be 4-inch solid wall SDR-35 PVC installed per plans.
The minimum grade for the piping shall be 2o/o and the maximum grade 20o/o. Joints shall be solvent
welded and cleanouts are required:
1) Within 5 feet of the existing/proposed structure.
2) At spacing not to exceed 100 feet.
3) Upslope of two or more bends closer than 10 feet.
All 90 degree bends shall be constructed using two, 45 degree fittings. The pipe shall be properly
bedded per the typical trench detail presented on sheet 9.
A minimum cover of 42-inches must be maintained over the influent and/or effluent piping. lf the
minimum covering cannot be met, insulation must be installed over the pipe per the detail on sheet 9
until the minimum cover over the pipe is met.
Septic Tanks: One new 1250 gallon septic tank with two compartments will be required. The tank
must be on the Colorado Department of Public Health and Environment's accepted septic tank list
and/or meet the requirements of section 43.9 A and B, Reg43. The tank and lids shall conform to
current County OWTS regulations and be traffic rated. The tank shall be installed with insulated,
watertight access risers having lids that can be secured. Risers shall meet the tank manufacturer's
requirements for type and installation. There shall be an effluent filter and its handle shall extend to
within twelve inches of the lid.
The septic tank shall:
1) Have a covering of no more than 4.O-feet and a minimum of 1.O-feet in depth, measured from
the top of the tank lid to finished grade surface. A septic tank having a cover thickness less
than 1.O-foot or greater than 4.0- feet will not be allowed.
2) Be at a location accessible for pumping and maintenance.
Prior to installation of the tank, the installer must ensure tank placement will allow connection of the
tank's inlet invert to the outlet of the existing tank, in addition to providing gravity flow to the new
distribution box.
Soit Treatment Area (STA). The soil treatment area was sized using criteria found in section 43.10
of Garfield County's application of Regulation 43 for a 4-bedroom residential home using:
. Proposed beds for the soil treatment area.
o Effluent application by gravity flows.
. Chambers in beds for the distribution media associated with the proposed STA.
The following table summarizes sizing of the STA.
No.
Occupants
Daily
Design
Flow
(qpd)
LTAR
Method of
Application
Adjustment Factor
Distribution Media
Adjustment
Factor
STA
Size
(s0
7 (Proposed)525 0.35 1.2 0.7 1.260
9
The total required absorption area for the STA to accommodate proposed residence is 1,260 square
feet.
The STA shall be excavated as field conditions require using the following guidelines
1. Two beds having a total absorption area of 1,260 square feet.2. Beds shall be no wider than 12 feet.
3. Bed lengths shall be no greaterthan 100 feet.4. A minimum of 6 feet, measured sidewall to sidewall, shall separate beds.5. The infiltrative surface shall be no greater than 4 feet from the sudace.6. Bed floors shall be level and set between 2to 4 feet from the surface.7. Chambers shall be placed per the manufacturer's directions.
Chambers shall have a minimum floor area of g0 percent of the excavated area, per Reg43
requirement 43.1 3. E.1 .d.
The STA shall have a final soil cover as described on sheet 9. 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 after installation of the system. A native,
upland seed mix should be used. These mixes do not require irrigation and develop a growth 10 to
15 inches high. No automatic sprinkler system shall be installed over the STA. Vehicular traffic 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.
5.0 lnstallation Observations
lnstallation of the OWTS tank, effluent lines, distribution box and infiltrators shall be observed by the
design engineer or his/her representative. These features shall be set at final location/elevation and
ready for final backfill prior to SGM personnel showing up on site to conduct these inspections.
Scheduling shall occur at least three days in advance by calling 970-945-1004 and requesting to be
connected to the project manager for project 2023-145.001.
6.0 Operation and Preventative Maintenance Schedule
The goal of an operation and maintenance schedule is to observe the operation, and perform minor
maintenance to the onsite wastewater system to allow for proper, long-term functioning of the system,
Septic tanks; The scum and sludge accumulation in the septic tanks shall be monitored yearly. Once
the cumulative scum or sludge thickness reaches 25% of the tank depth, the entire tank shall be
pumped. A pumping frequency of 1 to 3 years is expected at design flows. An alternative is a regular
pumping frequency of every 2 years.
Effluent Filter. The effluent filter at the septic tank discharge shall be cleaned (hosed off) at the time
of pumping or as nceded.
General: System users must realize that an on-site wastewater treatment system is different from
public sewer service. There are daily considerations, such as not putting plastic or other non-
biodegradable material into the system. Water use shall be monitored so that toilets are not allowed
to leak when seals malfunction. Allowing fixtures to flow continuously to prevent water lines from
freezing is not acceptable. Although the proposed system can accolìrrnoclate variable flows,
spteatlirrg water use over several hours and eliminating peak flows is recommended. lo illustrate
10
the point, a malfunctioning toilet can discharge in excess of 1,000 GPD. Excessive daily loading
could flood and irreparably harm the STA.
SGM recommends against installation of a water softener. The chemical and hydraulic loading from
the backwash of a water softener would be damaging to the STA, so if a softener is installed, a
separate drywell shall be constructed for the backwash waste. No landscaping or plastic can be used
over the STA, which would reduce the performance of the STA. The design of the OWTS is based
on the treatment of domestic sewage only. Swimming pool or spa water is not to be discharged into
the OWTS. The proposed OWTS design is based on the regulatory flows noted in the attached
calculations. lncreased flows may hydraulically or organically overload the OWTS, causing
premature failure.
7.0 Limitations
Our investigation, layout, design, and recommendations are based on site visits and the best
information available at the time. The contents of this letter shall not serve as the basis for any third
party engineering design. lf conditions that are considerably different from those described in this
report are encountered, SGM shall be called to evaluate the conditions. lf the proposed construction
is changed, SGM shall be notified to evaluate the effect of the changes on the OWTS prior to the
changes being made. All construction shall be in accordance with the Rio Blanco County OWTS
Regulations. Pipe type and size, burial requirements, septic tank construction, and other
specifications, which are not depicted in our report, shall conform to the requirements of the County's
OWTS Regulations. The installer of the system shall be acceptable by the County's Environmental
Health Department.
11
Appendix
OWTS Plan Sht I
Sections Sht 2
OWTS Details
NRCS Soils Map
NRCS Absorption Field Soils Data
NRCS Textural Triangle
SGM Soil Observation Logs
SGM Soil Texture by Feel
OWTS Design Spreadsheet
FEMA FlRMette 0802051 01 58
12
USDA
-
United States
Department of
Agriculture
NRCS
Natural
Resources
Conservation
Service
A product of the National
Cooperative Soil Survey,
a joint effort of the United
States Department of
Agriculture and other
Federal agencies, State
agencies including the
Agricultural Experiment
Stations, and local
participants
Gustom Soil Resource
Report for
Rifle Arean Golorado,
Parts of Garfield and
Mesa Gounties
February 24,2023
Preface
Soil surveys 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 officials, engineers, developers, builders, and home buyers.
Also, conservationists, 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 governments may impose
special restrictions on land use or land treatment. Soil surveys identify soil
properties that are used in making various land use or land treatment decisions.
The information is intended to help the land users identify and reduce the effects of
soil limitations on various land uses. The landowner or user is responsible for
identifying and complying with existing laws and regulations.
Although soil survey information can be used for general farm, local, and wider area
planning, onsite investigation is needed to supplement this information in some
cases. Examples include soil quality assessments (http://www.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://offices.sc.egov.usda.gov/locator/app?agency=nrcs) or your NRCS State Soil
Scientist (http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/contactus/?
cid=nrcs1 42p2_05395 1 ).
Great differences in soil properties can occur within short distances. Some soils are
seasonally wet or subject to flooding. Some are too unstable to be used as a
foundation for buildings or roads. Clayey or wet soils are poorly suited to use as
septic tank absorption fields. A high water table makes a soil poorly suited to
basements or underground installations.
The National Cooperative Soil Survey is a joint effort of the United States
Department of Agriculture and other Federal agencies, State agencies including the
Agricultural Experiment Stations, and local agencies. The Natural Resources
Conservation Service (NRCS) has leadership for the Federal part of the National
Cooperative Soil Survey.
lnformation about soils is updated periodically. Updated information is available
through the NRCS Web Soil Survey, the site for official soil survey information.
The U.S. Department of Agriculture (USDA) prohibits discrimination in all its
programs and activities on the basis of race, color, national origin, age, disability,
and where applicable, sex, marital status, familial status, parental status, religion,
sexual orientation, genetic information, political beliefs, reprisal, or because all or a
part of an individual's income is derived from any public assistancs program. (Not
all prohibited bases apply to all programs.) Persons with disabilities who require
2
alternative means for communication of program information (Braille, large print,
audiotape, etc.) should contact USDA's TARGET Center at (202)720-2600 (voice
and TDD). To file a complaint of discrimination, write to USDA, Director, Office of
civil Rights, 1400 lndependence Avenue, S.W., Washington, D.c. 20250-9410 or
call (800) 795-3272 (voice) or (202)720-6382 (TDD). USDA is an equal opportunity
provider and employer.
3
Gontents
Preface.......
How Soil Surveys Are Made.......
SoilMap.....
SoilMap......
Legend........
Map Unit Legend........
Map Unit Descriptions
Rifle Area, Colorado, Parts of Garfield and Mesa Counties.............
66-Torriorthents-Camborth ids-Rock outcrop complex, steep.,...
67-Torriorthents-Rock outcrop com plex, steep...........
Soil Information for All Uses.....
Suitabilities and Limitations for Use...
Sanitary Facilities......
Septic Tank Absorption Fields...
Soil Properties and Qualities......
Soil Physical Properties..........
Percent C|ay............
Percent Sand...........
Percent Si|t...............
Soil Qualities and Features.....
Hydrologic Soil Group.........
References
.2
..5
.8
..9
10
12
2
4
4
6
I
I
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I
24
24
24
28
32
36
36
42
4
How Soil Surveys Are Made
Soil surveys are made to provide information about the soils and miscellaneous
areas in a specific area. They include a description of the soils and miscellaneous
areas and their location on the landscape and tables that show soil properties and
limitations affecting various uses. Soil scientists observed the steepness, length,
and shape of the slopes; the general pattern of drainage; the kinds of crops and
native plants; and the kinds of bedrock. They observed and described many soil
profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The
profile extends from the surface down into the unconsolidated material in which the
soil formed or from the surface down to bedrock. The unconsolidated material is
devoid of roots and other living organisms and has not been changed by other
biological activity.
Currently, soils are mapped according to the boundaries of major land resource
areas (MLRAs). MLRAs are geographically associated land resource units that
share common characteristics related to physiography, geology, climate, water
resources, soils, biological resources, and land uses (USDA, 2006). Soil survey
areas typically consist of parts of one or more MLRA.
The soils and miscellaneous areas in a survey area occur in an orderly pattern that
is related to the geology, landforms, relief, climate, and natural vegetation of the
area. Each kind of soil and miscellaneous area is associated with a particular kind
of landform or with a segment of the landform. By observing the soils and
miscellaneous areas in the survey area and relating their position to specific
segments of the landform, a soil scientist develops a concept, or model, of how they
were formed. Thus, during mapping, this model enables the soil scientist to predict
with a considerable degree of accuracy the kind of soil or miscellaneous area at a
specific location on the landscape.
Commonly, individual soils on the landscape merge into one another as their
characteristics gradually change. To construct an accurate soil map, however, soil
scientists must determine the boundaries between the soils. They can observe only
a limited number of soil profiles. Nevertheless, these observations, supplemented
by an understanding of the soil-vegetation-landscape relationship, are sufficient to
verify predictions of the kinds of soil in an area and to determine the boundaries.
Soil scientists recorded the characteristics of the soil profiles that they studied. They
noted soil color, texture, size and shape of soil aggregates, kind and amount of rock
fragments, distribution of plant roots, reaction, and other features that enable them
to iàentify soils. After describing the soils in the survey area and determining their
properties, the soil scientists assigned the soils to taxonomic classes (units)'
Taxonomic classes are concepts. Each taxonomic class has a set of soil
characteristics with precisely defined limits. The classes are used as a basis for
comparison to classify soils systematically. Soil taxonomy, the system of taxonomic
classification used in the United States, is based mainly on the kind and character
of soil properties and the arrangement of horizons within the profile. After the soil
5
Custom Soil Resource Report
scientists classified and named the soils in the survey area, they compared the
individual soils with similar soils in the same taxonomic class in other areas so that
they could confirm data and assemble additionaldata based on experience and
research.
The objective of soil mapping is not to delineate pure map unit components; the
objective is to separate the landscape into landforms or landform segments that
have similar use and management requirements. Each map unit is dêfined by a
unique combination of soil components and/or miscellaneous areas in prediciable
proportions. Some components may be highly contrasting to the other components
of the map unit. The presence of minor components in a map unit in no way
diminishes the usefulness or accuracy of the data. The delineation of such
landforms and landform segments on the map provides sufficient information for the
development of resource plans. lf intensive use of small areas is planned, onsite
investigation is needed to define and locate the soils and miscellaneous areas.
Soil scientists make many field observations in the process of producing a soil map.
The frequency of observation is dependent upon several factors, including scale oi
mapping, intensity of mapping, design of map units, complexity of the lanãscape,
and experience of the soil scientist. Observations are made to test and refine the
soil-landscape model and predictions and to verify the classification of the soils at
specific locations. Once the soil-landscape model is refined, a significanfly smaller
number of measurements of individual soil properties are made and recorded.
These measurements may include field measurements, such as those for color,
depth to bedrock, and texture, and laboratory measurements, such as those for
content of sand, silt, clay, salt, and other components. properties of each soil
typically vary from one point to another across the landscape.
observations for map unit components are aggregated to develop ranges of
characteristics for the components. The aggregated values are presented. Direct
measurements do not exist for every property presented for every map unit
component. Values for some properties are estimated from combinations of other
properties.
While a soil survey is in progress, samples of some of the soils in the area generally
are collected for laboratory analyses and for engineering tests. soil scientisis
interpret the data from these analyses and tests as well as the field-observed
characteristics and the soil properties to determine the expected behavior of the
soils under different uses. lnterpretations for all of the soils are fíeld tested through
observation of the soils in different uses and under different levels of management.
some interpretations are modified to fit local conditions, and some new
interpretations are developed to meet local needs. Data are assembled from other
sources, such as research information, production records, and field experience of
specialists. For example, data on crop yields under defined levels of management
are assembled from farm records and from field or plot experiments on the same
kinds of soil.
Predictions about soil behavior are based not only on soil properties but also on
such variables as climate and biological activity. Soil conditions are predictable over
long periods of time, but they are not predictable from year to year. For example,
soil scientists can predict with a fairly high degree of accuracy that a given soil will
have a high water table within certain depths in most years, but they cannot predict
that a high water table will always be at a specific level in the soil on a specifìc date.
After soil scientists located and identified the significant natural bodies of soil in the
survey area, they drew the boundaries of these bodies on aerial photographs and
6
Custom Soil Resource Report
identified each as a specific map unit. Aerial photographs show trees, buildings,
fields, roads, and rivers, all of which help in locating boundaries accurately.
7
Soil Map
The soil map section includes the soil map for the defined area of interest, a list of
soil map units on the map and extent of each map unit, and cartographic symbols
displayed on the map. Also presented are various metadata about data used to
produce the map, and a description of each soil map unit.
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Custom Soil Resource Report
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Custom Soil Resource ReportMAP LEGENDMAP INFORMATIONThe soil surveys that comprise your AOI were mapped at1:24,00O.Warning: Soil Map may not be valid at this scale.Enlargement of maps beyond the scale of mapping c¿¡n causemisunderstanding of the detail of mapping and accuracy of soilline placement. The maps do not show the small areas ofcontrasting soils that could have been shown at a more detailedscale.Please rely on the bar scale on each map sheet for mapmeasurements.Source of Map: Natural Resources Conservation ServieæWeb Soil Survey URL:Coordinate System: Web Mercator (EPSG:3857)Maps from the Web Soil Survey are based on the Web Mercalorproject¡on, which preserves direction and shape but distortsdistancæ and area. A projection that preserves area, such as theAlbers equal-area conic projection, should be used if moreaccurate calculations of distance or area are required.This product is generated from the USDA-NRCS certified dala asof the version date(s) listed below.Soil Survey Area: Rifle Area, Colorado, Parts of Garfield andMesa CountiesSurveyArea Data: Version 15, Sep 6,2f.22Soil map units are labeled (as space allows) for map scales1:50,000 or larger.Date(s) aerial images were photographed: Aug 25, 2021-Sep5,2021The orthophoto or other base map on which the soil lines werecompiled and digitized probably differs from the backgroundArea of lnteræt (AOl)Area of lnterest (AOl)So¡lsSoil Map Un¡t PolygonsËl SpoilAreaû StonySpotß VeryStonySpotf WetSpotô Other.- Special Line FeeturesWater FealuresStreams and CanalsTransportat¡on¡-¡4 RailsÐ lnterstate Highways4 USRoutes.-:j'r Major RoadsLocal RoadsBackgroundI Aerial Photography# Soil Map Unit LinesI Soil Map Un¡t Po¡ntsSpec¡al Po¡nt Features(Ð Blowoutß Borrow PitH Clay Spotö Closed Depress¡onÞç Gravel Pitj, Gravelly Spotð LandfillÀ Lave FlowJå Marsh or swamp* Mine or QuarryO Mbcellaneous WaterÖ Perenn¡el Watertf Rock Outcrop+ Saline Spot:,: Sandy Spot€Þ Severely Eroded SpotS S¡nkholeþ Slide or Slipø Sodic Spotl0
MAP LEGENDCustom Soil Resource ReportMAP INFORMATIONimagery displayed on these maps. As a result, some minorofunit boundariesbe evident.11
Custom Soil Resource Report
Map Unit Legend
Map Unit Descriptions
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 identified and named
according to the taxonomic classification of the dominant soils. Within a taxonomic
class there are precisely defined lirnits for the properties of the soils. on the
landscape, however, the soils are natural phenomena, 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 similar to those of the dominant soil or soils in the
map unit, and thus they do not affect use and management. These are called
noncontrasting, or similar, components. They may or may not be mentioned in a
particular map unit description. other minor components, howeve¡ have properties
and behavioral characteristics divergent enough to affect use or to require different
management. These are called contrasting, or dissimilar, components. They
generally are in small areas and could not be mapped separately because of the
scale used. Some small areas of strongly contrasting soils or miscellaneous areas
are identified by a special symbol on the maps. lf included in the database for a
given area, the contrasting minor components are identified in the map unit
descriptions along with some characteristics of each. A few areas of minor
cornponents may not have been observed, and consequenfly they are not
mentioned in the descriptions, especially where the pattern was so complex that it
was impractical to 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 objective of mapping is not to delineate
pure taxonomic 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 sufficient information for the
development of resource plans. lf intensive use of small areas is planned, howeve¡
Map Unit Symbol Map Unit Name Acres in AOI Percent ofAOl
Torriorthents-Camborthids-Rock
outcrop complex, steep
0.0 1.5o/o66
67 Torriorthents-Rock outcrop
cornplex, steep
3.0 98.5%
Totals for Area of lnterest 3.r 't00.0%
12
Custom Soil Resource RePort
onsite investigation is needed to define and locate the soils and miscellaneous
areas.
An identifying 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 so/ series. Except for
differences in texture of the surface layer, all the soils of a series have major
horizons that are similar in composition, thickness, and arrangement.
Soils of one series can differ in texture of the surface layer, slope, stoniness,
salinity, degree of erosion, and other characteristics that affect their use. On the
basis of such differences, a soil series is divided into so/ phases. 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 affects 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 undifferentiated groups.
A complex consists of two or more soils or miscellaneous areas in such an intricate
pattern 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 associaflon 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, it was not considered
practical or necessary to map the soils or miscellaneous areas separately. The
pattern and relative proportion of the soils or miscellaneous areas are somewhat
similar. Alpha-Beta association, 0 to 2 percent slopes, is an example.
An undifferentiated 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
interpretations can be made for use and management. The pattern 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 major 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 areas. Such areas have little or no soil
material and support little or no vegetation. Rock outcrop is an example.
13
Custom Soil Resource Report
Rifle Area, colorado, Parts of Garfield and Mesa counties
66-Torriorthents-Gamborthids-Rock outcrop complex, steep
Map Unit Setting
Nationalmap unit symbol: jnz4
Elevation: 5,000 to 8,500 feet
Mean annual precipitation; 10 to l S inches
Mean annualairtemperature: 3g to 46 degrees F
Frost-free period: 80 to 105 days
Farmland classification; Not prime farmland
Map Unit Composition
Torriofthents, sfeep, and similar soils: 45 percent
Camboñhids, steep, and similar soits; 20 percent
Rock outcrop, sfeep.' 15 percent
Esflmafes are based on obseruations, descriptions, and fransecfs of the mapunit.
Description of Torriorthents, Steep
Setting
Landform : Mountainsides
Landform position (two-dimensional): Footslope
Lan dfo rm position (th ree -di m e n si on al) : Mountainfla nk, base slope
Down-slope shape: Convex
Across-s/op e sh a pe : Convex
Parent material: Stony, basaltic alluvium derived from sandstone and shale
Typical profile
Hl - 0 to 4 inches: variable
H2 - 4 to 30 inches: fine sandy loam
H3 - 30 to 34 inches.' unweathered bedrock
Properties and qualities
S/ope; 15 to 70 percent
Depth to restrictive feature:4 to 30 inches to lithic bedrock
Drainage c/ass: Well drained
Runoff class; High
Capacity af the most limiting layer to transmit water (Ksat): Moderately tow to
moderately high (0.06 to 0.20 in/hr)
Depth to water table: More than B0 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content:5 percent
Maximum salinity: Nonsaline to very slighfly saline (0.0 to 2.0 mmhos/cm)
Available water supply, 0 to 60 i¡tches: Very low (about 2.4 inches)
lnterpretive groups
Land capability classification (inigated): None specified
Land capabil ity ct assification (non i rrig ated) : T e
Hydrologic Soil Group: D
Hydric soilrating: No
14
Custom Soil Resource Report
Description of Camborthids, Steep
Setting
Landform : Mountainsides
Landform position (two-dimensional) : Footslope
La n dfo rm positi on (th ree -di m e n sio n al) : M ountai nflan k, base slope
Down-slope shaPe: Convex
Across-s/op e shaPe : Convex
Parent material: Stony, basaltic alluvium derived from sandstone and shale
Typical profile
H1 - 0 to 4 inches: variable
H2 - 4 to 30 inches: claY loam
H3 - 30 to 34 inches; unweathered bedrock
Properties and qualities
S/ope: 15 to 65 Percent
Depth to restrictive feature: 15 to 60 inches to lithic bedrock
Drai n age c/ass; Well drained
Runoff class: High
Capacity of the most limiting layer to transmit water (Ksat); Moderately low to
moderately high (0.06 to 0.20 in/hr)
Depth to watertable: More than 80 inches
Frequency of flooding: None
Frequency of Ponding: None
Catcium carbonate, maximum content: 10 percent
Gypsum, maximum content:2 Percent
Maximum satinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
Avaitabte water supply, 0 to 60 inches: Low (about 4.0 inches)
lnterpretive grouPs
Land capabil ity cl assification (i rrig ated,); None specified
Land capabil ity cl assification (non irrigated) : 7 e
Hydrologic Soil GrouP: C
Hydric sol/ rafing; No
Description of Rock OutcroP, SteeP
Setting
Landform : Mountainsides
Landform position (three-dimensional): Free face
Down-slope shaPe; Convex
Across-s/ope shaPe: Convex
Typical profile
H1 - 0 to 60 inches: unweathered bedrock
Properties and qualities
S/ope; 15 to 70 Percent
Depth to restrictive feature:0 inches to paralithic bedrock
Runoff class: VerY high
Capacity of the most timiting layer to transmit water (Ksat): Very low to moderately
high (0.00 to 0.20 in/hr)
Avaitabte water suppty, 0 to 60 inches: Very low (about 0.0 inches)
lnterpretive groups
Land capabil ity cl assification (i rrig ated); None specified
15
Custom Soil Resource Report
Land capability classification (nonirrigafed); Bs
Hydric so/ raflng: No
67-Torrio rthents-Rock outcrop com plex, stee p
Map Unit Setting
Nationalmap unit symbol: jnz1
Elevation: 5,800 to 8,500 feet
Mean annual precipitation: 10 to 15 inches
Mean annualairtemperature: 3g to 46 degrees F
Frost-free period: B0 to 10S days
Farmland classification; Not prime farmland
Map Unlt Composition
Torriorthents, steep, and similar soits:60 percent
Rock outcrop. sfeep: 25 percent
Esfmafes are based on obseruations, descriptions, and fransecfs of the mapunit.
Description of Torriorthents, Steep
Setting
Landform : Mountainsides
La ndfo rm positio n (two-di m e n si o n al) : Footslope
Landfo rm positi o n (th ree-d i me n sion at ) : Mountai nflan k, base slope
Down-slope shape: Concave, convex
Across-s/ope shape: Concave, convex
Parent material: Stony, basaltic alluvium derived from sandstone and shale
Typical profile
Hl - 0 to 4 inches: variable
H2 - 4 to 30 inches: fine sandy loam
H3 - 30 to 34 inches: unweathered bedrock
Properties and qualities
S/ope; 15 to 70 percent
Depth to restrictive feature:4 to 30 inches to lithic bedrock
Drainage c/ass: Well drained
Runoff class; High
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to
moderately high (0.06 to 0.20 in/hr)
Depth to water fable: More than 80 inches
Frequency of f/oodrng: None
Frequency of ponding: None
Calcium carbonate, maximum content: S percent
Maximum salinity: Nonsaline to very slighfly saline (0.0 to 2.0 mmhos/cm)
Available water supply, 0 to 60 inches: Very low (about 2.4 inches)
Interpretive groups
Land capabilify classificatian (irrigated,); None specified
Land capability classification (nonirrigated) : 7 e
16
Custom Soil Resource RePort
Hydrologic Soil Group: D
Hydric so/ rafrng: No
Description of Rock OutcroP, SteeP
Setting
Landform : Mountainsides
Landform position (th ree-dimension al) : Free face
Down-slope shaPe: Convex
,Across-s/op e sh aPe : Convex
Typical profile
H1 - 0 to 60 inches: unweathered bedrock
Properties and qualities
S/ope: 15 to 70 Percent
Depth to restrictive feature:0 inches to paralithic bedrock
Runoff class; VerY high
Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately
high (0.00 to 0.20 in/hr)
Avaitabte water supply, 0 to 60 inches: Very low (about 0.0 inches)
lnterpretive groups
Land capabil ity classification (i nigated): None specified
Land capabil ity cl assification (non i rrigated) : 8s
Hydric so/ raftng: No
17
Soil lnformation for All Uses
Suitabilities and Limitations for Use
The Suitabilities and Limitations for Use section includes various soil interpretations
displayed as thematic maps with a summary table for the soil map units in the
selected area of interest. A single value or rating for each map unit is generated by
aggregating the interpretive ratings of individual map unit components. This
aggregation process is defined for each interpretation.
Sanitary Facilities
sanitary Facilities interpretations are tools designed to guide the user in site
selection for the safe disposal of sewage and solid waste. Example interpretations
include septic tank absorption fields, sewage lagoons, and sanitary landfills.
Septic Tank Absorption Fields
septic tank absorption fields are areas in which effluent from a septic tank is
distributed into the soilthrough subsurface tiles or perforated pipe. Only that part of
the soil between depths of 24 and 60 inches is evaluated. The ratings are based on
the soil properties that affect absorption of the effluent, construction and
maintenance of the system, and public health. Saturated hydraulic conductivity
(Ksat), depth to a water table, ponding, depth to bedrock or a cemented pan, and
flooding affect absorption of the effluent. Stones and boulders, ice, and bedrock or a
cemented pan interfere with installation. Subsidence interferes with installation and
maintenance. Excessive slope may cause lateral seepage and surfacing of the
effluent in downslope areas.
Sorne soils are underlain by loose sand and gravel or fractu¡red bedroek at a depth
of less than 4 feet below the distribution lines. ln these soils the absorption field may
not adequately filter the effluent, particularly when the system is new. As a result,
the ground water may become contaminated.
The ratings are both verbal and numerical. Rating class terms indicate the extent to
which the soils are limited by all of the soil features that affect the specified use.
"Not limited" indicates that the soil has features that are very favorable for the
specified use. Good performance and very low maintenance can be expected.
"somewhat limited" indicates that the soil has features that are moderately
18
Custom Soil Resource RePort
favorable for the specified use. The limitations can be overcome or minimized by
special planning, design, or installation. Fair performance and moderate
maintenance can be expected. "Very limited" indicates that the soil has one or more
features that are unfavorable for the specified use. The limitations generally cannot
be overcome without major soil reclamation, special design, or expensive
installation procedures, Poor performance and high maintenance can be expected.
Numerical ratings indicate the severity of individual limitations. The ratings are
shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations
between the point at which a soil feature has the greatest negative impact on the
use (1.00) and the point at which the soil feature is not a limitation (0.00)'
The map unit components listed for each map unit in the accompanying Summary
by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer
are determined by the aggregation method chosen. An aggregated rating class is
shown for each map unit. The components listed for each map unit are only those
that have the same rating class as listed for the map unit. The percent composition
of each component in a particular map unit is presented to help the user better
understand the percentage of each map unit that has the rating presented.
Other components with different ratings may be present in each map unit. The
ratings for all components, regardless of the map unit aggregated rating, can be
viewed by generating the equivalent report from the Soil Reports tab in Web Soil
Survey or from the Soil Data Mart site. Onsite investigation may be needed to
validate these interpretations and to conf¡rm the identity of the soil on a given site
19
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Area of lnterest (AOl)Area of lnterest (AOl)So¡lsSoil Rating PolygonsI Very limitedE Somewhat limitedI NotlimitedNot rated or not availableSo¡l Rat¡ng Lines)4, Very limited. t, Somewhat limitedtú Not limited. t, Not rated or not availableSo¡l Rat¡ng Po¡nts¡ Very limitedtr Somewhat l¡mitedI Not lim¡tedtr Not rated or not availableWater FeaturesStreams and CanalsTransportation¡-¡4 RailsÐ lnte¡stete Highways¿4 USRoutes''j:: Major RoadsLocal RoadsCustom Soil Resource ReportAerial PhotographyMAP INFORMATIONThe soil surveys that comprise your AOI were mapped at1:24,000.Please rely on the bar scale on each map sheet for mapmeasurements.Source of Map: Natural Resources Conservation Servic,eWeb Soil Survey URL:Coordinate System: Web Mercator (EPSG:3857)Maps from the Web Soil Survey are based on the Web Mercatorproject¡on, which preserves direction and shape but distortsdistance and area. A projection that preserves area, such as theAlbers equal-area conic projection, should be used if moreaccurate calculations of distance or area are required.This product is generated from the USDA-NRCS certified data asof the vers¡on date(s) listed below.Soil Survey Area: Rifle Area, Colorado, Parts of Gafield andMesa CountiesSurvey Area Data: Version 15, Sep 6,2022Soil map units are labeled (as space allows) for map scalesl:50,000 or larger.Date(s) aerial images were photographed: Aug 25, 2021-Sep5,2021The orthophoto or other base map on which the soil lines werecompiled and digitized probably differs from the backgroundMAP LEGENDBackgroundWarning: Soil Map may not be valid at this scale.Enlargement of maps beyond the scale of mapping can causemisunderstanding of the detail of mapping and accuracy of soilline placement. The maps do not show the small areas ofcontrasting soils that could have been shown at a more detailedscale.21
MAP LEGENDCustom Soil Resource ReportMAP INFORMATIONimagery displayed on these maps. As a result, some minorofunit boundariesbe evident.22
Custom Soil Resource Report
Tables-Septic Tank Absorption Fields
Rating Options-septic Tank Absorption Fields
Aggregation Method: Dominant Condition
Component Percent Cutoff: None Specified
Tie-break Rule; Higher
Map unit
symbol
Map unit name Rat¡ng Component
name (percent)
Rating reasons
(numeric
values)
Acres in AOI Percent of AOI
66 Torriorthents-
Camborthids-
Rock outcrop
complex, steep
Very limited Torriorthents,
steep (45%)
Depth to bedrock
(r.00)
0.0 1.5%
Slope (l .00)
Camborthids,
steep (20%)
Slow water
movement
(1.00)
Slope (1.00)
Depth to bedrock
(1.00)
67 Toniorthents-
Rock outcrop
complex, steep
Very limited Toniorthents,
steep (607o)
Depth to bedrock
(1.00)
3.0 98.5%
Slope ('l .00)
Totals for Area of lnterest 3.1 100.0%
Rat¡ng Acres in AOI Percent of AOI
Very limited 3.1 1O0.Oo/o
Totals for Area of lnterest 3.1 100.0%
23
Custom Soil Resource Report
Soil Properties and Qualities
The soil Properties and Qualities section includes various soil properties and
qualities displayed as thematic maps with a summary table for the soil map units in
the selected area of interest. A single value or rating for each map unit is generated
by aggregating the interpretive ratings of individual map unit components. This
aggregation process is defined for each property or quality.
Soil Physical Properties
Soil Physical Properties are measured or inferred from direct observations in the
field or laboratory. Examples of soil physical properties include percent clay, organic
matter, saturated hydraulic conductivity, available water capacity, and bulk density.
Percent Clay
Clay as a soil separate consists of mineral soil particles that are less than 0.002
millimeter in diameter. The estimated clay content of each soil layer is given as a
percentage, by weight, of the soil material that is less than 2 millimeters in diameter.
The amount and kind of clay affect the fertility and physical condition of the soil and
the ability of the soil to adsorb cations and to retain moisture. They influence shrink-
swell potential, saturated hydraulic conductivity (Ksat), plasticity, the ease of soil
dispersion, and other soil properties. The amount and kind of clay in a soil also
affect tillage and earth-moving operations.
Most of the material is in one of three groups of clay minerals or a mixture of these
clay minerals. The groups are kaolinite, smectite, and hydrous mica, the best known
member of which is illite.
For each soil layer, this atlribute 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 "representative" value indicates the expected value of this
attribute for the component. For this soil property, only the representative value is
used.
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Map-Percent Clay
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MAP LEGENDAree of lnterest (AOl)Area of lnterest (AOl)So¡lsSoil Rating PolygonsI =2o'oE Not raÞd or not aveilableSoil Rat¡ng L¡nes14r = 20.0u t Not rat=d or not availabþSoil Rating PointsI =20'otr Not rated or not availableWater FeaturesStreams and CanalsTransportat¡onRails4 lnterstate Highwayste US Routes:':.::. Major RoadsLocal RoadsBackgroundI Aer¡al PhotooreDhvCustom Soil Resource ReportMAP INFORMATIONThe soil surveys that comprise your AOI were mapped at1:24.OOO.Warning: Soil Map may nol be valid at this scale.Enlargement of maps beyond the scale of mapping can causemisunderstanding of the detail of mapping and accuracy of soilline placement. The maps do not show the small areas ofcontrasting soils that could have been shown at a more detailedscale-Please rely on the bar scale on each map sheet for mapmeasurements.Source of Map: Natural Resources Conservation ServiceWeb Soil Survey URL:Coordinate System: Web Mercator (EPSG:3857)Maps from the Web Soil Survey are based on the Web Mercatorproject¡on, which preserves direction and shape but distortsdistance and area. A projection that preserves area, such as theAlbers equal-area conic projection, shouH be used if moreaccurate calculations of distance or area are required.This product is generated from the USDA-NRCS certif¡ed data asof the version date(s) listed below.Soil Survey Area: Rifle Area, Colorado, Parts of Garfield andMesa CountiesSurveyArea Data: Version 15, Sep 6,2022Soil map units are labeled (as space allows) for map scales1:50,000 or larger.Date(s) aerial images were photographed: Aug 25, 2021-Sep5,2021The orthophoto or other base map on which the soil lines werecompiled and digitized probably difiers from the background26
MAP LEGENDCustom Soil Resource ReportMAP INFORMATIONimagery displayed on these maps. As a result, some minorofunit boundariesbe evident.27
Custom Soil Resource Report
Table-Percent Clay
Rating Options-Percent Clay
Units of Measure: percent
Aggregation Method: Dominant Component
Component Percent Cutoff: None Specified
Tie-break Rule: Higher
lnterpret Nu//s as Zero: No
Layer Options (Horizon Aggregation Method):Depth Range (Weighted Average)
Top Depth:0
Bottom Depth:96
Units of Measure; lnches
Percent Sand
Sand as a soil separate consists of mineral soil particles that are 0.05 millimeter to 2
millimeters in diameter. In the database, the estimated sand content of each soil
layer is given as a percentagc, by weight, of the soil material that is less than 2
millimeters in diameter. The content of sand, silt, and clay affects the physical
behavior of a soil. Particle size is important for engineering and agronomic
interpretations, for determination of soil hydrologic qualities, and for soil
classification.
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database. A low value and a high value indicate the range of this attribute for the
soil component. A "representative" value indicates the expected value of this
attribute for the component. For this soil property, only the representative value is
used.
Map unit symbol Map unit name Rating (percent)Acres in AOI Percent of AOI
66 Torriorthents-
Camborthids-Rock
outcrop complex,
steep
20.0 0.0 1,50/o
67 Torriorthents-Rock
outcrop complex,
steep
20.0 3.0 98.5o/o
Totals for Area of lnterest 3.1 100.0%
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Map-Percent Sand
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N4ap puectbn: \4leb fulstabr Oomer oordinaÞs: WGS84 ftge ücs: l.fiIvl &rìe 13N WGS84
29
281630
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MAP LEGENDArea of lnterest (AOl)Area of lnterest (AOl)SoilsSo¡¡ Rat¡ng PolygonsI =612E Not rated or not ava¡lableSo¡¡ Rat¡ng L¡nestry =61 2. t Not rated or not availableSoil Reting PointsI = 61'2E Not reted or not aveilableWater FeaturesStreams and CanalsTransportat¡on¡.¡4 Railsd lnterstete H¡ghweysÆ US Routesr':.:. Major RoadsLocal RoadsBackgroundI Aerial PhotographyCustom Soil Resource ReportMAP INFORMATIONThe soil surveys that comprise your AOI were mapped at1:24,O0O.Warning: Soil Map may not be valid at th¡s scale.Enlargement of maps beyond the scale of mapping can c¿rusemisunderstanding of the detail of mapping ând accuracy of soilline placement. The maps do not show the small areas ofcontrasting so¡ls that could have been shown at a more detailedscale.Please rely on the bar scale on each map sheet for mapmeasurements.Source of Map: Natural Resources Conservat¡on ServicæWeb Soil Survey URL:Coordinate System: Web Mercator (EPSG:3857)Maps from the Web Soil Survey are based on the Web Mercatorprojection, which preserves direction and shape but distortsdistance and area. A projection that preserves area, such as lheAlbers equal-area conic projection, shouH be used if moreaccurate calculations of distance or area are required.This product is generated from the USDA-NRCS certified data asof the version date(s) listed below.Soil Survey Area: Rifle Area, Colorado, Parts of GarfieH andMesa CountiesSurveyArea Data: Version 15, Sep 6,2022Soil map units are labeled (as space allows) for map scales1:50,000 or larger.Date(s) aerial images were photographed: Aug 25, 2021-Sep5,2021The orthophoto or other base map on which the soil lines werecompiled and digitized probably differs from the background30
MAP LEGENDCustom Soil Resource ReportMAP INFORMATIONimagery displayed on these maps. As a result, some minorofunit boundariesbe evident.31
Custom Soil Resource Report
Table-Percent Sand
Rating Options-Percent Sand
Units of Measure; percent
Aggregation Method: Dominant Component
Component Percent Cutoff: None Specified
Tie-break Rule; Higher
lnterpret Nu//s as Zero:No
Layer Options (Horizon Aggregation Method): Depth Range (Weighted Average)
Top Depth: O
Boftom Depth:96
Units of Measure: lnches
Percent Silt
Silt as a soil separate consists of mineral soil particles that are 0.002 to 0.05
millimeter in diameter. ln the database, the estimated silt content of each soil layer
is given as a percentage, by weight, of thc soil material that is less than 2
millimeters in diameter.
The content of sand, silt, and clay affects the physical behavior of a soil. Particle
size is important for engineering and agronomic interpretations, for determination of
soil hydrologic qualities, and for soil classification
For each soil layer, 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 "representative" value indicates the expected value of this
attribute for the component. For this soil property, only the representative value is
used.
Map unit symbol Mâp unit name Rating (percent)Acres in AOI Percent of AOI
66 Toniorthents-
Camborthids-Rock
outcrop complex,
steep
61.2 0.0 't.5%
67 Torriorthents-Rock
outcrop complex,
steep
61.2 3.0 98.5%
Totals for Area of lnterest 3.1 100.0%
32
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Map Scale: 1:760 if prinÞd on A poÛait (8.5" x 11") sheeL
Custom Soil Resource Report
Map-Percent Silt
26',t670 281710 81Tâ 2317?Ð
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281630
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33
MAP LEGENDAree of lnterest (AOl)Area sf lnterest (AOl)SoilsSoil Rating Polylgonsf =18'8E NotraledornotavailableSoil Rat¡ng Linesrry, = 18.8. t Not rated or not availableSoil Rating Poir*st =188tr Not raÞd or not ave¡lableWater FeaturesStreams and CanalsTransportat¡on|# Railsd lnterstate Highways# USRoutes-.. :. Major Roads. Local RoadsBackgroundI Aerial PhotographyCustom Soil Resource ReportMAP INFORMATIONThe soil surveys that comprise your AOI were mapped at1:24,0OO.Please rely on the bar scale on each map sheet for mapmeasurements.Source of Map: Natural Resources Conservation ServiceWeb Soil Survey URL:Coordinate System: Web Mercator (EPSG:3857)Maps from the Web Soil Survey are based on lhe Web Mercatorprojection, which preserves direct¡on and shape but distortsdistancæ and area. A projection that preserves area, such as theAlbers equal-area conic projection, should be used if maeaccurate calculations of distance or area are required.This product is generated from the USDA-NRCS certified data asof the version date(s) listed below.Soil Survey Area: Rifle Area, Colorado, Parts of GarfieH andMesa CountiesSurvey Area Data: Version 15, Sep 6,2022Soil map units are labeled (as space allows) for nnp scales1:50,000 or larger.Date(s) aerial images were photographed: Aug 25, 2021-Sep5,2021The orthophoto or other base map on which the soil lines werecompiled and digitized probably difers from the backgroondWarning: Soil Map may not be valid at this scale.Enlargement of maps beyond the scale of mapping can causemisunderstanding of the detail of mapping and accuracy of soilline placement. The maps do not show the small areas ofcontrasting soils that could have been shown at a more detailedscale.34
MAP LEGENDCustom Soil Resource ReportMAP INFORMATIONimagery displayed on these maps. As a result, some minorofunit boundariesbe evident.35
Custom Soil Resource Report
Table-Percent S¡lt
Rating Options-Percent Silt
Units of Measure: percent
Aggregation Method: Dominant Component
Component Percent Cutoff: None Specified
Tie-break Rule; Higher
Interpret Nu//s as Zero:No
Layer Options (Horizon Aggregation Method): Depth Range (Weighted Average)
Top Depth:0
Bottom Depth:96
Units of Measure.' lnches
Soil Qualities and Features
soil qualities are behavior and performance attributes that are not direcfly
measured, but are inferred from observations of dynamic conditions and from soil
properties. Example soil qualities include natural drainage, and frost aetion. Soil
features are attributes that are not directly part of the soil. Example soil features
include slope and depth to restrictive layer. These features can greaily impact the
use and management of the soil.
Hydrologic Soil Group
Hydrologic soil groups are based on estimates of runoff potential. Soils are
assigned to one of four groups according to the rate of water infiltration when the
soils are not protected by vegetation, are thoroughly wet, and receive precipitation
from long-duration storms.
The soils in the Unlted States are assigned to four groups (4, B, C, and D) and
three dual classes (A/D, B/D, and C/D). The groups are defined as follows:
Map unit symbol Map unit name Rating (percent)Acres in AOI Percent ofAOl
66 Torriorthents-
Camborthids-Rock
outcrop complex,
steep
18.8 0.0 1,5Vo
67 Torriorthents-Rock
outcrop complex,
steep
18.8 3.0 98.57o
Totals for Area of lnterest 3.1 100.0%
36
Custom Soil Resource Report
Group A. Soils having a high infiltration rate (low runoff 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 runoff 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 near the surface, and soils that are shallow over nearly impervious material.
These soils have a very slow rate of water transmission.
lf a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is
for drained areas and the second is for undrained areas. Only the soils that in their
natural condition are in group D are assigned to dual classes.
37
3
s
N
Cuslorrr Soil Resource Report
Map-Hydrologic Soil Group
2816S1
2€1ffi 2a16/o æ1ffi 281660 2316t0 281& 2819 æ17Cþ
Map Scale: 1:760 if prinÞd on A porfait (8.5" x 11") sheet
-
-f"leters
010?0Æ60
Éet0 35 70 lQ 210
I4ap projedion: \¡þb t\4erGþr Coíìer@ordinaB: WGS84 Edgetics: UTIVI Zone 13N WGS84
38
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ff
H 190 l1 25" N
ff
H
I
E
R
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Custom Soil Resource ReportMAP LEGENDMAP INFORMATIONThe soil surveys that comprise your AOI were mapped at1:24,O0O.Please rely on the bar scale on each map sheet for mapmeasurements.Source of Map: Natural Resources Conservation ServiceWeb Soil Survey URL:Coordinate System: Web Mercator (EPSG:3857)Maps from the Web Soil Survey are based on the Web Mercatorprojection, which preserves direction and shape but distortsdistance and area. A projection that preserves area, such as theAlbers equal-area conic projection, should be used if moreaccurate calculations of distance or area are required.This product is generated from the USDA-NRCS certified data asof the version date(s) listed below.Soil Survey Area: Rifle Area, Colorado, Parts of Garfield andMesa CountiesSurvey Area Data: Version 15, Sep 6, 2022Soil map units are labeled (as space allows) for map scales1:50,000 or larger.Date(s) aerial images were photographed: Aug 25, 2021-Sep5,2021The orthophoto or other base map on which the soil lines werecompiled and digitized probably differs from the backgroundArea of lnterest (AOl)Area of lnterest (AOl)SoilsSoil Rat¡ng PolygonsIcI c/DTDtr Not rated or not availableWater FeaturesStreams and CanalsTrensportationRailslnterstate HighwaysUS RoutesMajor RoadsLocâl RoâdsEAEEEMEEEütlAA/DBB/Dcc/DDNot reted or not availâble+lã,,4. .:,So¡l Rating LinesBackgroundI Aerial PhotographyAA./DBB/Dcc/DDNot rated or not evailableSoil Rating Po¡ntstAI A/DTBI B/DWarning: Soil Map may not be valid at this scale.Enlargement of maps beyond the scale of mapping can causemisunderstanding of the detail of mapping and accuracy of soilline placement. The maps do not show the small areas ofcontrast¡ng soils that could have been shown at a more detailedscale.39
MAP LEGENDCustom Soil Resource ReportMAP INFORMATIONimagery displayed on lhese maps. As a result, some minorofbe evident.40
Custom Soil Resource Report
Table-Hydrologic Soil Group
Rating Options-Hydrologic Soil Group
Aggregation Method: Dominant Condition
Component Percent Cutoff: None Specified
Tie-break Rule; Higher
Map unit symbol Map unit name Rating Acres in AOI Percent ofAOl
66 Torriorthents-
Camborthids-Rock
outcrop complex,
steep
D 0.0 1.5o/o
67 Torriorthents-Rock
outcrop complex,
steep
D 3.0 98.5%
Totals for Area of lnterest 3.1 100.0o/o
41
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.
Cowardin, L.M., V. Cartet F.C. Golet, and E.T. LaRoe. 1979. Classification of
wetlands and deep-water habitats of the United States. U.S. Fish and Wildlife
Service FWS/OBS-79/31 .
Federal Register. July 13, 1994. Changes in hydric soils of the United States.
Federal Register. September 18,2002. Hydric soils of the United States.
Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric
soils in the United States.
National Research Council. 1995. Wetlands: Characteristics and boundaries.
SoilSurvey Division Staff. 1993. Soil survey manual. Soil Conservation Service.
U.S. Department of Agriculture Handbook 1 8. http://www. nrcs. usda. gov/wps/portal/
nrcs/detail/national/soils/?cid=nrcs I 42p2_054262
Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for
making and interpreting soil surveys. 2nd edition. Natural Resources Conservation
Service, U.S. Department of Agriculture Handbook 436. http://
www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=n rcs142p2_053577
Soil Survey Staff.2010. Keys to soiltaxonomy. 11th edition. U.S. Department of
Agriculture, Natural Resources Conservation Service. http://
www. nrcs. usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_053580
Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and
Delaware Department of Natural Resources and Environmental Control, Wetlands
Section.
United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of
Engineers wetlands delineation manual. Waterways Experiment Station Technical
Report Y-87-1.
United States Departrnent of Agriculture, Natural Resources Conservation Service.
Nationalforestry manual. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/
h o m e/?ci d = n r cs 1 42p2 _05337 4
United States Department of Agriculture, Natural Resources Gonservation Service.
National range and pasture handbook. http://www.nrcs.usda.gov/wps/portal/nrcs/
detail/national/landuse/rangepasture/?cid=stel prdb I 043084
42
Custom Soil Resource Report
United States Department of Agriculture, Natural Resources Conservation Service.
National soil survey handbook, title 430-Vl. http://www.nrcs.usda.gov/wps/portal/
nrcs/detail/soils/scientists/?cid=nrcs 1 42p2_054242
United States Department of Agriculture, Natural Resources Conservation Service.
2006. Land resource regions and major land resource areas of the United States,
the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook
296. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?
cid=nrcs1 42 p2_053624
United States Department of Agriculture, Soil Conservation Service. 1961. Land
capability classification, U.S. Department of Agriculture Handbook 210. http:ll
www. nrcs. usda. gov/l nternet/FSE_DOCUM ENTS/nrcs1 42p2_052290. pdf
43
Long-term Acceptance Rates
Soil Type, Texture, Structure and Percolation Rate Range Corresponding Long Term Acceptance Rate (ttAR)
in qallons per dav per so. ft,
Soil
Type USDA SoilTexture
USDA Soil
Structure-
Shaoe
USDA Soil
Structure-
Grade
Pe¡colatlon
Rate (MPI)
Treatment
Level 1
Treatment
Level 2
Treatment
Level 2N
Treatment
Level 3
Treatment
Level 3N
0
SoilType I with more
than 359ó rock >2 mm
Soil Types 2-5 with more
than 500/o rock (>z mm)
Single Grain ¿(
1.0
(rninirnwn 3'
deep unlinerl
sand filter
rcouircd 2)
1.0
(minimum 2Joot deep unlined sand filter required 2)
,|5and
Loamv Sand Single Grain 5-1 5 0,80 1.25 1.25 1.40 1.40
2
Sandy Loam
Loam
Srlt Loam
Prismatic
Blocky
Granular
Moderate
Strong 16-25 0.60 0.90 0.90 1.00 1.00
2A
Sandy Loam
Loam
Silt Loam
Prismatic
Blocky
Granular
None
Weak
Massive 26-40 0.50 0.70 0.70 0.80 0.80
3
Sandy Clay Loam
Clay Loam
Siltv Clav Loam
Prismatic
Blocky
Granular
Moderate
Strong 41-60 0.35 0.50 0.50 0.60 0.60
tÃj'r{
Sandy Clay Loam
Clay Loam
Silty Clay Loam
Prismatic
Blocky
Granular
None
Weak
Massive 61-75 0.30 0.40 0.40 0.50 0.50
4
Sandy Clay
Clay
Siltv Clav
Prismatic
Blocky
Granular
Moderate
Strong 76-90 0.20 0.30 0.30 0.30 0.30
4A
Sandy Clay
Clay
Silty Clay
Prismatic
Blocky
Granular
None
Weak
Massive 91-120 0.15 0.20 0.20 0.20 0.20
5 Soii Types 2-aA Piaty
Weak
Mocierate
Stronq
121+0.10 0.15 0,15 0.15 0.15
Bosed on CDPHE WQCC Regulation 43 Table 1 0.1 Soil Treatment Area Long-term Acceptonce Rotes by Soil Texture, So¡l structrtre, Per.olation Rote and Treotment Level
100
10
90
Textural
Triangle
80
30
70
40
60
50
50
60
40
70
30
80
10
100 90 80 70 50 40 30 20 10
I
Loam
5ilty Clay
Silty
Clay
Clay
Loam
,' Silt Loam
Silt
Percent Sand
90
1ôô
Total Design Flows
BASIS OF DESIGN
SITECRITERIA
sÉ
tTAR
0.35
Based on Teble 1o.1
1.2
o.7
soil Type
I
z
3
2A
3A
4
4A
5
Soil toading Rate =
Soil Treatment Area = STA = Ilesign Flont/tTAR
Size Adjustment for Method of Application =
Size Adjustment for Type of Distribution =
15{Ðx1.2x0.7=1?6O
Adjusted STASire = 1ãô0 ff
Number of lnfiltrators with 15 fÉ Fhor Area =
Number of lnfiltrators w¡th 12 fÉ Ftoor Area =
0.35
15æ ft3
Size Adjustment Factors for Method of Application in 5TA
Type of Abcorption
Area Method of Effluent Applcation
Dosed
(siphon or Pressur€
Gravity pumpl tlo'sed
Trench
Bed
Size Adjustment Factors for Types of Distribution Media in STA
Category 3 -
Category Chambers
f-ategory 1- 2- Other or
Rock or Tire MFG Enhanced
Chips Media Media
Type of
Distribution Media
x
x
84
105
t{
$eptic Tank Size gallons
ffinü Addrcss: VrubL- 588 b"^r \o?. 51?4"(PmrL1p¡æl Dæcrlptlon lÊß:z3t?Soll Parent Material{sl: Till(clrcle ell that applylOutunsh' l¡custrine Alluvium Loess Organlc Matter BedroclrPosltlon:Sununit Shoulder Bacldslde Slope Foot Sbpe Toe $lopeSlope Shapcr(circle one),?;+ #'LSlope {%f:Elemtlon¡Soil Survey MapÊuÄl$l/egstation:ôp,,r.conditions/time of Day:Soil Observatíon LogSSGMp,Depth (infCommtnts:Textureo't 0{o¡/ {ü, Ror¡IlottleMetrixñedox .r.ä:itn¡cù¡redWfr¡rti Cr.dGgþnrieEncrxLôÛsGFrl¡ÞþFkfliE¡tremdy FlrïrREdtooaFrl¡bleF¡Î'nËrrrlrñely Firmnbftto6ÊFrl¡!þF¡rmE¡trr'nalt FitñRlËtooúeFdablrFlrlTl€¡crunrþFlrmñ¡ddlr6aFrl¡UGFl¡mE¡lteßllyt¡rñ8tsbl¡o3cFri¿äeFhñEûtmcvFinrrnsdöSlrol|LÞoscwttlModcrìrlrSr¡on3l¡oseWo¡kMtd.lztcStror¡loosÊWe¡lMoclrt¡tcStronSl,oosrl ratlModlf¡t.Strontf.oosêWcatñlod€r¡tcStrorl|Loar!Gññlrbr4h5¡rSrGrf,l,Jllr!årc6.lñ¡l¡rltftyüor¡y¡rf'nrñc9rl|3Gnañr&ßh6rxstrrttttY!þcfyrrbñar¡.9fttþ6flfillrs¡È6rruhfã*ttldyrfbñurtsS¡|rrGr.t'rxülfc€llâr¡hr?lt¡tlloctytûilrikShalr&¡¡rlúarrtut@r¡t¡bttry0¡orryPrúr¡atk$rlh6.iìME h'tConcentrationsOepletionsGleyedConcentratfonsDepletionsGl.yeOConcentratlonsDepletion¡6leyedConcentrat¡onstÞpletionsGleyedConcentrationsDepledonsGleyedConcentrationsDepletions6leyed>trI6',:qüC€rt¡RÊd St¡¡rn¡cnc ! herctry ccrtify 1t¡¡t I h¡vc csrnplcted th¡swork ln accordance wltfi a[ applicrblc ordln¡nccs, rules and l¡ws.+
-'ffimç Y*n9 F*r*rffi Sq.Sg1;"ulo?5q(q"*r rË tltl I zzOutwash laßurtr¡ne Alluvium loess Organlc Matter BedrockSoll Parent Material{s}: T'ill{ctrcle ¡ll thet apply}Shoulder Baek/Slde Slope Foot Slope Toe Slopelandscape Posltion: Summit(circle one|Slope Shapc:?;l wLSoilSurvey MaFþ3g,tn'tËlevation¡ôfoþSoil Obseruation LogMûttleFedor fll¡ru¡¡e Ü¡uensr ß¡¡¡#{rceSSGMIËprthfinlTextureftc¡ MetrirLooncFrlðUrFhmûtrÈmalyFhñnsdtoorrFrþblcflí¡EnrcnËÌy F¡fmRl¡ldLoo3cF.t¡bþFkmE¡tnÈllrrly F¡rmn$dtootâFr{aùlcFltmÊr¡rlrnaly Frmn¡ddLo6cFd¡bicRrmE¡1fermryfimRbrdtôogÊFri¡HeFkrñEgemevFinnñ¡3'idwc¡kffiñ-suaÛ-rLoo¡!wattllodêr¡tÊStronStoorrwG¡kMqhnt"Strot¡tooi€t|lrktvlodùîteSlrþñ8l,oor¿Wa¡tModar¡trSùottttootcWc.tlvbdef¡têStiort¡LooSr6aÍu.lrglNþGð¡,lMaûrhrG.üü$rfrrfyäockrtrtâr[¡cgrft 6.lln14r¡t¡vallftTGrr¡h.üû.þtrùñ¡tkCn¡¡6rr¡lxSctlllt6rãdlflJortyffiS¡rlhCıl¡l.att¡EGr¡nu¡rthtyfþ.fytrt rìrl¡ct¡âaþ 6r.lnM8fåf,f,bryGrt r¡bt¡¡ochvF lrñrlks¡[¡h5r¡5M¡¡rlvrConcentÊtionsDepletions6leyedCorrentr¡donsDeplationsGleyedConcentratlongDedetionsGleyedC¡nænrationsDepletionsGleyedConcentr¡tionsDcpledonsGleyedConcentfat¡onsDepletíonsGleyedIIII>tt'L-qÇ'tl6C0mmants:lS¡m¡ù¡cl{l¡!.lE.lllDrtrlCert¡Red Ststclt¡cnt: I hcreÞÍ cÊrt¡ty tl¡rt I h¡vc Gornpteted th¡5work ln acrordance wlth all applicable ordlntnc?s, rules and laws,
SSGM
SOII PROFILE TEST PIT tOG
IA SEPARATE tOG SHAtt BE COMPLETED TOR EACH SOII PROFILE TEST PITI
Property Address
Test Pit #1-Date of
Rengc of Dcpth of Soil
Horlron, Relrtlvc to Ground
Surfsce
USDA Soillexture
USDA Soll
Struclure -
ïvpc
Soll Structure-
Gradc
Soll Type
(Teblc 10 or "R"
Solls ln T¡blc
111
Rcdorlnorphic
Fcaturcs
Prcscnt? (Y/f{f
e g" -Jt"&*Jr 0øt t*,r"1 ıtoct<-y tvioá sat¿3 \\
g6 - thk iq.^h Ctq-r l.oa."l ıtoctuv f.loå¡rolo 3 N
I
Notes
Con \n
ls there a limiting layer as defined in Regulation 0-17? El Ves firuo
lf yes, design document must explain how the limiting condition is addressed.
ls Dawson Arkose (DA) or Cemented Sand (CS) present? El yes tr No
lf yes, please answer the following:
ls materlal fractured andlor jointed? E yes EI No
What is the cementatíon class?
ls the Dawson Arkose or Cemented Sand a llm¡ting layer per secîion 8.78.2 of O-L7? E yes Et No
SSGM
Soll Proflle Test Pit Graphic Log Number:
WIDTH IN FCET
23450 6I 7
Ground Su¡l¡cc
3
4
I
2
Fl¡¡
¡¡¡l¡
=-t-¡.t¡¡ê
5
6
7
I
9
lôrI,t
o I tn l^r.rJ(
7t ll 5,
I t ta
*0 I./,11,
,t2 /I(
lo /c lo fC.'t L I
rh.R-ar\lr
.l A,I t /F.,,.Q)L tt",l Y,!s I(
I I
Þ¡)A-At)(,\r\D L
ri,(þ 2
I I
{
r'l. l,6i al,t1 ,t<
ts/r It '$'/"I
\)A1'ô f I L Y*lo
4a,I)¡4 I t ù It ¡lI v
rl rt5 v I ll
Ebþi t 3 rfi !kDal
,,l Yr s ?,ìtt I tL (I
I
SOIL PROFILE TEST PIT tOG
lA SEPARATE rO!¡ SHAU. BE COMPLETED FOR EACH SOtr pROFil,E TEST ptTl
Property Address
OSGh4,
Date of tossins, 2 | zz lz5Test Pit Number:*L
Range of Dcpth of Soil
Horllon, Rel¡tlvc to Ground
Sutfrcc
USDA Soil TlxturË
USDA SoII
Structurc -
Typr
SollStructura-
Gr¡de
Soll Type
(T¡blc 10 or "R"
Soll¡ in T¡bl:
111
Redorlmorphic
Fr¿turcs
Prcscnt? (Y/Nl
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t U
Notes:c
e-l
ls there a limiting layer as deflncd in ßegulatlon O-17? EI V",
Sruo
lf yes, design document must explain how the llmltlng condltlon is addressed
ls Dawson Arkose (DA) or Cemented Sand (CSl present? El yes E t¡o
lf yes, please answer the following:
ls materlal fractured and/or Jointed? E Yes E No
What is the cementation class?
ls the Dawson Arkose or Cemented Sand a limiting layer per section 8.78.2 of 0-17? El Yes E No
{SollProflle Test Plt Graphic log Number:
WIDTH IN FEET
2145
SSGM
0 6I 7
Ground Surl¡cc
4
1
2
3
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5
6
7
I
9
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