HomeMy WebLinkAbout20222897.tiffRURAL LAND DIVISION FINAL PLAN (RLDF) APPLICATION
FOR PLANNING DEPARTMENT USE:
AMOUNT
APPLICATION RECEIVED BY:
DATE RECEIVED:
CASE # ASSIGNED:
PLANNER ASSIGNED:
Parcel # 511 ,3 67 Qi)OOLSI ___ Parcel #
(12 -digit number — found on Tax I.D. information, obtainable at the Weld County Assessor's map found at www.weldgov.com)
Legal Description
1
4
rz
S ection 3(G, , Township �_ North, Range
Total Acreage: t: Proposed ##/Lots verag 1 Minimum 1 Maximum Lot Size:
S ERVICE PROVIDER:
Water:
Sewer/Septic:
Gas:
Electric:
Post Office:
P ROPERTY OWNER(S) (Attach additional sheets if necessary.)
(Tin/I
N ame:
Company:
P hone #:
Address:
City/State/Zip Code: LC:Jneri
'7 76 - 939 Sr el 0
Email: "?'6, j ) kirtS
ga CAC)
i
(.WS c}
AP P L ICANTIA IIT H O R IZED AGENT (Authorization Form must be included if there is an Authorized Agent)
Name:'flea CI lb hie) 5 CM
Company: r 17707,e1
..c
Col t T C
P hone #: ( - 55040_ Email:
Address: -=‘,45/1,- ` i:; aro, c- ., ted
City/State/Zip Code: 2 Vc, -, En Lie) G al 0
I (We) request that the above described property be designated a Rural Land Division Final Plan by the Weld County
Board of County Commissioners. I (We) hereby depose and state under penalties of perjury that all statements,
proposals, and/or plans submitted with or contained within the application are true and correct to the best of my
(our) knowledge. Signatures of all fee owners of property must sign this application. If an Authorized Agent signs,
a letter of authorization from all fee owners must be included with the application. If a corporation is the fee owner,
notarized evidence must be included showing the signatory has the legal authority to sign for the corporation.
ena (/ 106,7 S dr)
Print /
9.-47 7),20aA
Date Signature
Print
Date
Owner Signature
I, (we), UP/ /1/0777,t5a sre
(Owner — please print)
AUTHORIZATION FORM
DEPARTMENTS OF PLANNING
BUILDING, DEVELOPMENT REVIEW
AND ENVIRONMENTAL HEALTH
1555 NORTH 17TH AVENUE
GREELEY, CO 80631
give permission to 6A v 61/2 /7,567)
(Authorized gent/Applicant—please print)
to apply for any Planning, Building, Access, Grading or OWTS permits on our behalf, for the property located
at (address or parcel number) below:
f,
. A1/2 73 �oc5
h
Legal Description: :R5Th 3 ` - of Section . ' , Township i' N, Range 6. te, w
Subdivision Name:
S Lcieur
Property Owners Information:
Address: LI5 =.. r L
Phone: cilo 3; -55c E -snail:
Authorized Agent/Applicant Contact Information:
Lot 1,3 Block
ei &It-) Om
Address: 3g W. &n'i 'r ed 6/041,Scc ffo �r .T
Phone: 70 9 -
,. E -Mail:
Correspondence to be sent to: Owner El Authorized pp A ent/A licant
g
Additional Info:
by: Mail Email
under penalty of perjury and after carefully reading the entire contents of this
information stated above is true and correct to the best of my (our) knowledge.
Date --a7-)%2
Subscribed anworn to before me this
re\ \(.4Q1 JAN s gin.
a
My commission expires OH f ) j
�[ )3)6
WILLIAM FUERSTENBERGER
Notary Public
State of Colorado
Notary iD # 19984010252
My Commission Expires 04-14-2026
Owner Signature
day of
Date
LTA
t .t t+
Notary Public
(007
C: a
awn HOMES, INC
WRITTEN CORPORATE CONSE1 T
Be it known that Larry Carter,Asst. Secretary of CMH Homes, bic., having been duly authorized and
empowered by the Board of Directors does hereby designate Mike Jansen. General Manager of CMH
Homes, Inc. DBA Clayton Homes #277, is authorized and empowered to sign documents related to
transactions of the certain real estate located. at 17901 County road 38 ( Lot 4) and Lots 1,2 and 3
Platteville, CO 80651.. The General Manager is not authorized to enter into anyruarantee Agreement or
any other contract that would require CMH Homes Inc. to assume responsibility for any loan balances or
payments owed by a consumer if they default on their home loan with their lender.
1 hereby certify that I am the duly qualified Larry Carter, Asst. Secretary of the aforesaid Corporation and
that I am authorized to make the aforementioned. designation.
Dated 31st
August 2022.
STATE OF TB TNES BE
COUNTY OF BLOUNT
The 31st Day Of August 2022personally came before me Brett Mur. rr, a Notary Public for the said
County, and Larry Carter who being by me duly sworn, says that he is Asst. Secretary of CMH Homes,
Inc., a Corporation, and that said writing was signed and sealed by him in behalf of said Corporation by
its authority duly given.
4419872
Witness my hand and official seal, this the 31 st Day Of August, 2022.
Notary Public
My commission expires: 5/2/26
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RURAL LAND DIVISION FINAL PLAN (RLDF)
QUESTIONNAIRE
Answer the following questions per Section 24-6-30.A.8 of the Weld county Code. Please type on a
separate sheet.
1. Explain the reason for the Rural Land Division request.
2. Explain the reason of the proposed division layout.
3. Describe the existing and proposed uses of the property.
4. Describe the existing and proposed potable water source.
5. Describe the existing and proposed sewage disposal system.
6. Describe existing and proposed improvements.
7. Describe any existing and proposed easements and rights -of -way.
8. Describe the existing and proposed access to the site.
9. Describe the current irrigation practices occurring on the site.
10. Describe the unique physical characteristics of the property, including, but not limited to, topography,
water bodies, CRP lands, vegetation, floodplains, geohazard areas, MS4 and airport overlay district.
11. Detail the location of any on -site oil and gas facilities, irrigation ditches/laterals, pipelines, overhead
lines, railroads, etc. Provide the names and addresses of any owner or operator of any oil and gas
facilities, irrigation ditches/laterals, pipelines, overhead lines, railroads, etc.
Rural Land Division Final Plan (RLDF) Questionnaire
17901 WCR 38, PLATTEVILLE CO
1) Current land -owners would like to build a new home on the 18 acre parcel and create three 6 -
acre parcels to complete residential build as reflected on exhibit map.
2) Land -owners and Public Works would prefer one access to serve all lots in order to make
emergency and fire exits work.
3) Residential single-family homes, currently and proposed.
4) Currently the property known as 17901 WCR 38, Platteville is using a full use well, permit 217001.
The landowners would like to keep that well for outside use. They will also get a water tap for
inside water use. The three additional lots will be serviced with new water taps.
5) Property known as 17901 WCR 38/ Platteville will use an existing septic tank. The three new
additional lots will have brand new septic systems.
6) Currently, property known as 17901 WCR 38, Platteville will be replacing home mobile home with
brand new HUD home for residential single-family home. That property will also be building a
detached accessory building. The three new 6 acre lots will have brand new HUD homes for
residence and a detached accessory building at each lot.
7) Current access for property known as 17901 WCR 38, Platteville is a County approved access off
of CR 38. This access will be abandoned, and a new access point for all four lots approved by Public
Works will be installed and used thereafter. Additional easements for power will be granted
contractually through power company.
8) Current access for property known as 17901 WCR 38, Platteville is a County approved access off
of CR 38. This access will be abandoned, and a new access point for all four lots approved by public
works will be installed and used thereafter.
9) Basic outside water
10) No unique physical characteristics of the property, including water bodies/ CRP, vegetation,
flood plains or geohazard areas have been identified at this time.
11) No irrigation ditches/laterals, pipelines, overhead lines, railroad ect. have been identified at this
time.
If any additional questions come up, please reach out to Clayton Homes Evans/ Tracy Johnson, 970-339-
5500
FRONT RANGE
Stormwater & Floodplain
Consulting
Weld County Planning Department
1555 N. 17th Ave.
Greeley, CO 80631
August 3, 2021
RE: Rural Land Division
Weld County Parcel No. 105736000015
Drainage Narrative
PH: 970.690.C493
EMAIL: storm-flood@live.com
P.O. Box 1271
Fort Collins, Colorado
80522
u ww.frstormflood.com
Dear Staff,
This report is intended to summarize the proposed project Rural Land Division for Weld County
Parcel No. 105736000015, and to provide additional details regarding historic and developed
drainage conditions for the project. The project site is located just northwest of the
intersection of Weld County Road 38 and Weld County Road 37 (Please see Figure 1, below).
Figure 1— Vicinity Map
Project
Site
Page 1of7
Weld County Parcel No. 105736000015 August 4, 2021
Drainage Letter Front Range Stormwater € Floodplain Consulting
FLOODPLAIN
The project site is not located within the current effective FEMA 100 -year flood zone or
floodway (per FIRM 080123C1750E, Dated 1/20/2016). Additionally, the project site is not
located within the draft CHAMP floodplain or floodway, as provided by the Larimer County Land
Information Locator (https://mapsl.larimer.org).
Figures 2 and 3, below, show Weld County floodplain information and current effective FEMA
floodplain mapping. We provide both sets of data to verify floodplain data from both County
and Federal data sets, as in some cases there may be a locally defined flood zone but is not
regulated by FEMA. In such cases, local master drainage studies, flood studies, etc. may need
to be consulted in order to determine floodplain or floodway encroachment of a property or
locally defined 100 -year flood elevations.
Figure 2 - Weld County GIS Floodplain Information
(Source: Larimer County Land Information Locator; https://mapsl,larimer,org)
Page 2 of 7
Weld County Parcel No. 105736000015
Drainage Letter
August 4, 2021
Front Range Stormwater € Floodplain Consulting
0812301725E
elf. 1/20/2016
12 17SOF,
1/202016
Not Printed
Figure 3 - FEMA Floodplain Information
(Source: FEMA Map Service Center; https:j/msc.fema.gov/portal/)
USDA SOILS MAPPING
According to the United States Department of Agriculture (USDA) Natural Resources
Conservation Service (NRCS) Soil Survey website:
http:// ebsoilsurvey.nres.usda,gov/app/l ebSoilSurvey.aspx, the site primarily Caruso Clay
Loam", which falls into Hydrologic Soil Group D.
s
Map Unit
Symbol
le UM Name
f
69
Valent
slopes
sand. 010 3
percent
70
Vaient
slopes
sand.
3 to 9 percent
72
Vera
percent
barfly sari
dopes
0 to 3
Figure 4 - USDA Soil Mapping Tabular Output
(Source: USDA Web Soil Survey; https:// a bsoi lsu rvey. sc. egov, us d a . gov)
Page 3 of
Weld County Parcel No. 105736000015
Drainage Letter
August 4, 2021
Front Range Stormwater € Floodplain Consulting
Figure 5 - USDA Soil Mapping
(Source: USDA Web oil Survey; https:// ebsoilsurvey.sc egov. usda 1gov)
Page 4o17
Weld County Parcel No. 105736000015 August 4, 2021
Drainage Letter Front Range Stormwater € Floodplain Consulting
HYDROLOGY
As shown in the Historic Drainage Exhibit provided in Attachment 1, historic/current drainage
patterns direct storm discharge from southeast to northwest. The site is relatively flat with
existing grades ranging from 0.8% to 2.4%. Site runoff conveys across the site as sheet flow,
and leaves the site along the north and northwest perimeter as sheet flow.
All runoff computations have been done according to Chapter 5 of the Weld Count Engineering
and Construction Criteria, January 2021. C -Value computations for Developed conditions
hydrologic modeling of the site has accounted for future development of the four new lots and
we have assumed each lot will have single family dwellings, with an gravel access road.
Rainfall utilizes the equation provided in Chapter 5, Equation 5.4.1 of the Weld County
Engineering and Construction Criteria:
28.5F*
(1O+Ta)°786
Where:
• 1= rainfall intensity (inches per hour)
• P3 = 1 -hour point rainfall depth (inches)
• Td= storm duration (minutes)
Per NOAA Atlas 14, Volume 8, Version 2, https:f f hdsc.nws.noaa.govf hdscf, rainfall is shown in
Figure 6, below.
Duration
60 -rain
Average recurrence interval (years)
SI
2
0.708
(0.559.0.889)
0.841
((0.615-1.86)
i _
5
It
1.11
(0.889.1.40)
� 10
1.39
(1.10-1.76)
l _
1! _
25
1.85
(1.45-2.53)
50
2.26
(1.71-3.12)
[iool
2.73
(197-3.86)
I 200
If
3.25
(2.24-4.74)
Figure 6 - Rainfall Data, near Gillcrest, CO
(Source: NOAA Atlas 14, Volume 8, Version 2)
500
.1
1000
4.03
(2.65-6.03)
F4.68
(2.96-7.02)
Page 5of7
Weld County Parcel No. 105736000015 August 4, 2021
Drainage Letter Front Range Stormwater € Floodplain Consulting
As shown in the Historic Drainage Exhibit, the overall project site has an approximate basin area
of 80.89 acres (based on Weld County GIS property line data). Based on the hydrologic
computations provided for Basin SM1, Table 1, below, summarizes both historic and developed
peak 5-, 10-, and 100 -year discharge rates. Please see Attachment 4 for computation of
historic and developed conditions Rational Method C -Value, time of concentration and runoff.
BAS
IN(5)
AREA
(AC)
QS
Q10
Qa00
HIST-1
ST
-1
80.89
0.88
7.73
47.74
DEV-1
80.89
0.88
7.73
47.74
TABLE 1— Historic and Anticipated Future Developed Stormwater Discharge Rates
Table 1 shows no increase in 5-, 10-, or 100 -year runoff with the assumed future developed
conditions. We have assumed four single family dwellings to be built on the four additional lots
shown in attachment 6 ("Exhibit Map for Proposed Rural Land Division" by Dedecker Land
Surveying, 7/8/2021). There is an existing single family dwelling in the southwest lot shown in
this exhibit, and we have accounted for the impervious area created by the existing dwelling
and gravel drive.
CONCLUSIONS
In the assumed developed condition, the overall site will experience an insignificant increase in
overall site imperviousness, which results in no change in 5-, 10-, or 100 -year runoff
coefficients. In the assumed future developed condition there will be no significant alteration
to overall basin flowpath or time of concentration. Because of this there will be no anticipated
change in 5-,10-, or 100 -year peak runoff values. Therefore, we do not feel that there is a need
for onsite detention in the assumed future development condition.
Temporary BMP's (Best Management Practices) should be put in place for any future
construction. Depending on the size and nature of any future improvements or construction,
permanent BMP's may be necessary. The assumed future development would propose a minor
subdivision of the property with an insignificant increase in overall basin imperviousness;
therefore, no temporary or permanent water quality measures should be necessary.
Page 6 of 7
Weld County Parcel No. 105736000015 August 4, 2021
Drainage Letter Front Range Stormwater € Floodplain Consulting
The following attachments are provided in support of this Preliminary Drainage Letter:
Attachment 1 Historic Drainage Exhibit
Attachment 2 — USGS Quadrangle Mapping
Attachment 3 — Weld County Property Portal Mapping
Attachment 4 - Hydrologic Computations
Attachment 5 — USDA► Soils Mapping and Documentation
Attachment 6 — Exhibit Map for Rural Land Division (Dedecker Land Surveying)
Please feel free to contact me at your convenience with any questions you may have.
Sincerely,
FRONT RANGE STORM WATEI 8 FLOODPLAIN CONSULTING
Aaron Cvar, PhD, PE
President
*now
i
Page 7 of
Attachment 1
Historic Drainage Exhibit
Attachment 2
USGS Quadrangle Mapping
Attachment 3
Weld County Property Portal Mapping
4•. ii Untie
WILD CO LINT'. CO
Weld County
PROPERTY PORTAL
Property Information (970) 400-3650
Technical Support (970) 400-4357
ads Identify MeasLire Draw Advarncec
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Home Legend Result_
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Owner Address Account 4 Parcel t S -T -R Subdivision . Search Data Search
Search by
' Owner: SIAVIN KEVIN S
e
A.cceti m t: R7948699 Parcel: 105736000015
Address: 17901 COUNTY ROAD 38 WELD
Subdivision:
Sectors: 36 Township: 4N Range: 66W
Taxes Property Report Data Search Buffer e r Sales
5' Owner: JO'HNST�ON-SLAVlN SHERRY L
p�
Account: R7942699 Parcel: 105736000D15
Address: 17901 COUNTY ROAD 38 WELD
Subdivision:
Sermon_ 35 Township: 4N Range: 55W
Taxes Pro Re Data Search Buffer Sa es
411
ter.
Displaying 1 - 2 (Total: 2)
41
4 Page 1of1 Ii
Aust Layer=
Parcels (2)
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Let: 4226509° N
�3 WKI D; 4326 Latkong A Lou: 104.713762 W C)
6001E
300
WELD COUNTY PROPERTY PORTAL
https://www.co.weldico.usimapsipropertyportali
COI
O
lir
Pan Initial e.ot Print identify Point
Tcrals
Distance
Attachment 4
Hydrologic Computations
CI -VALUE
ONDITION
CALCULATION
HISTORIC
Surface Treatment Percent Imp CS C10 0100
Project: Clayton
-004
Concrete Pavement 90% 0.71 0.73 0/9
By: A.Cvar
Asphalt Pavement 90% 0.71 0.73 0.79
Date: July
15, 2021
Rooftop 90% 0.71 0.73 0.79
Gravel Surfacing 40% 0.25 0.30 0.41
Historic Undev Area 2% 0.01 0.07 0.22
Notes/Assumptions:
Weld County Engineering and Construction Criteria (January 2021) utilized for C -Value Computations. Assume 2150 Sq. Ft rooftop areas for all residential lots. Per USDA Soil Report, overall soil
type is Hydrologic Group A.
BASIN ID
BASIN AREA
BASIN AREA
CONCRETE
ASPHALT
ROOFTOP
GRAVEL
OPEN SPACE/
CALCULATED AVE.
CALCULATED
CALCULATED
CALCULATED.
NSF)
(AC)
AREA (AC)
AREA (AC)
AREA (AC)
AREA (AC)
LANDSCAPE
BASINS► IMP. (%)
C2
Cs
go
(AC}
HIST-1
352356114
80.89
0.05
0.01
0.11
0.00
80.72
2.2%
0.01
0.07
0.22
TIME
CALCULATION
ONDITION
OF CONCENTRATION
HISTORIC
Equations:
Project:
Clayton
-004
1 2021
Initial
ii _ 0.3950..
Flow
Time:
1 a 5
V =
C, =
St,. =
Channelized
V C,,
Flow Time: Urbanized
(I.
S.,%.
L
coefficient (from Table FAO -2)
slope (ft/ft)
Tc Check:
+
10
(ft)
By: A.Cvar
Date: July
CS 5-Yr C -Value
L = length of overland
5= average basin slope
0_
flow
_
t _
velocity (ft/see)
conveyance
watercourse
j[]�'/}r
= waterway length
Notes/Assumptions:
Weld County Engineering and Construction Criteria (January 2021) utilized for Tc Computations..
Basin ID
Initial Flow Time
Channelized
Flow Time
Total Flow
Time PA .)
Tc Check
(Urbanized)
Selected
(Mint)
Tc
Cs
L
S
Ti
L
Cv
S
Tt
H I ST -1
0.23
400.00
0}.016
26.90
2117.00
7.00
0.02
35.64
62.54
IOWA
62.54
RUNOFF CALCULATION
HISTORIC CONDITIONS
Equation:
Project: Clayton
-004
By: A.Cvar
Q = peak runoff rate, cfs
Date: July
15, 2021
t_;x[xd1,
runoff coefficient, dimensionless
1 - rainfall intensity at the time of concentration, in/hr
A = area of the basin, acres
Notes/Assumptions:
Weld County Engineering and Construction Criteria (January 2021) utilized for runoff computations_
DESIGN POINT
BASIN(S)
AREA
CS
C10
0100
Tc
IS
110
'100
Ct5
Q10
Q100
100-YR
(AC)
CFS/AC
HIST-1
HIST-1
80.89
0.01
0.07
0.22
62.54
1.09
1.37
2.68
0.88
7.73
47.74
0.59
C -VALUE
DEVELOPED
CULA `ION
CONDITIONS
CAL
Surface Treatment Percent Imp CS C10 0100
Project: Clayton
-004
Concrete Pavement 90% 0.71 0.73 0/9
By: A.Cvar
Asphalt Pavement 90% 0.71 0.73 0.79
Date: July
15, 2021
Rooftop 90% 0.71 0.73 0.79
Gravel Surfacing 40% 0.25 0.30 0.41
Historic Undev Area 2% 0.01 0.07 0.22
Notes/Assumptions:
Weld County Engineering and Construction Criteria (January 2021) utilized for C -Value Computations. Assume 2150 Sq. Ft rooftop areas for all residential lots. Per USDA Soil Report, overall soil
type is Hydrologic Group A.
BASIN ID
BASIN AREA
BASIN AREA
CONCRETE
ASPHALT
ROOFTOP
GRAVEL
OPEN SPACE/
CALCULATED AVE.
CALCULATED
CALCULATED
CALCULATED.
(SF)
(AC)
AREA (AC)
AREA (AC)
AREA (AC)
AREA (AC)
LANDSCAPE
BASINS► IMP. (%)
C2
Cs
go
(AC}
DEV-1
352356114
80.89
0.07
0.00
0.25
0,38
80.19
2.3%
0.01
0.07
0.22
TIME
CALCULATION
CONDITIONS
OF CONCENTRATION
DEVELOPED
Equations:
Project:
Clayton
-004
15? 2021
Initial
ii _ O.395(1
Flow
Time:
1 a '5
V =
C, =
St,. =
Channelized
V C�,S.,%.
Flow Time: Urbanized
(I.
L
coefficient (from Table FAO -2)
slope (ftfft)
Tc Check:
+
10
(ft)
By: A.Cvar
Date: July
CS 5-Yr C -Value
L = length of overland
5= average basin slope
0.33
flow
_
_
velocity (ft/see)
conveyance
watercourse
j[]�'/}r
= waterway length
Notes/Assumptions:
Weld County Engineering and Construction Criteria (January 2021) utilized for Tc Computations..
Basin ID
Initial Flow Time
Channelized
Flow Time
Total Flow
Time PA .)
Tc Check
(Urbanized)
Selected
(Mint)
Tc
CS
L
S
Ti
L
Cv
S
Tt
DEV-1
0.23
400.00
0}.016
26.90
2117.00
7.00
0.02
35.64
62.54
IOWA
62.54
RUNOFF CALCULATION
DEVELOPED CONDITIONS
Equation:
Project: Clayton
-004
By: A.Cvar
Q = peak runoff rate, cfs
Date: July
15, 2021
t_;x[xd1,
runoff coefficient, dimensionless
1 - rainfall intensity at the time of concentration) in/hr
A = area of the basin, acres
Notes/Assumptions:
Weld County Engineering and Construction Criteria (January 2021) utilized for runoff computations_
DESIGN POINT
BASINS)
AREA
CS
C10
0100
Tc
IS
I10
1100
Ct5
Q10
Q1BB
100-YR
(AC)
CFS/AC
D EV-1
DEV-1
80.89
0.01
0.07
0.22
62.54
1.09
1.37
2.68
0.88
7.73
47.74
0.59
8/4/2021 Precipitation Frequency Data Server
NOAA Atlas 14, Volume 8, Version 2
Location name: Platteville, Colorado, USA*
Latitude: 40.2823°, Longitude: -104.7758°
Elevation: 4750.8 ft**
` source: ESRI Maps
**source. USGS
POINT PRECIPITATION FREQUENCY ESTIMATES
Sanja Redcap Deborah Martin, Sandra Pavlovic, Ishani Roy, Michael St. Laurent, Carl Trypaluk, Dale
Unruh, Michael Yekta, Geoffery Bonnin
NOAA, National Weather Service, Silver Spring, Maryland
PF tabular PF graphical I Maps & aerials
PF tabular
PDS-based
point
precipitation
frequency estimates
with
90% confidence
intervals
(in inches)1
Average recurrence interval
(years)
Duration
I
10
125
I 50
100
200
500
1000
5 -min
0.239
(0.192-0.300)
0.289
(0.232-0.363)
1 0.386
(0.309-0.487)
1 0.482
(0.382-0.610)
0.635
(0.494-0.864)
0.770
(0.579-1.06)
0.921
(0.664-1.30)
1.09
(0.748-1.58)
1.33
(0.877-1.99)
1.54
(0.973-2.31)
10
-min
0.350 39
0.423
(0.339-0.531)
0.566
(0.452-0.712
0.705
(0.560-0.893)
0.930
(0.724-1.27)
1.13
(0.848-1.55)
1.35
(0.973-1.90)
1.59
(1.10-2.31)
1.95
(1.28-2.92)
2.25
(1.43-3.38)
1
15
-min
0.427
(0.343-0.535)
0.516
(0.414-0.648)
0.690
(0.551-0.869)
0.860
(0.683-1.09)
1.13
(0.883-1.54)
1.38
(1.03-1.89)
1.64
(1.19-2.32)
1.94
(1.34-2.82
i 2.38
(1.57-3.56)
2.75
(1.74-4.12)
30 i
0.572
(0.460-0.718)
0.690
(0.553-0.866)
I 0.920
(0.735-1.16)
1.15
(0.910-1.45)
1.51
(1.18-2.06)
1.84
(1.38-2.53)
2.20
(1.59-3.11)
2.61
(1.79-3.79)
3.20
(2.11-4.79)
3.70
(2.34-5.55)
60 -min
0.708
0.841
1.11
(0.889-1.40)
M
1.39
(1.10-1.76)
1.85
(1.45-2.53)
1 2.26
(1.71-3.12)
2.73
(1.97-3.86)
3.25
(2.24-4.74)
4.03
(2.65-6.03)
1 4.68
(2.96-7.02)
2 -'fir
0.844
(0.683-1.05)
0.993
(0.803-1.24)
1.31
(1.05-1.63)
1.63
(1.31-2.05)
2.18
(1.73-2.97)
2.68
(2.04-3.67)
3.25
(2.38-4.56)
3.90
(2.71-5.62)
4.85
(3.23-7.19)
5.66
(3.62-8.39)
3 -hr
0.924
(0.752-1.14)
1.08
(0.874-1.33)
1.40
(1.14-1.74)
1.75
(1.41-2.19)
2.35
(1.87-3.18)
2.89
(2.22-3.94)
3.51
(2.59-4.90)
4.22
(2.96-6.06)
5.29
(3.54-7.79)
6.18
(3.98-9.09)
6 -fir
1.08
(0.885-1.32)
1.25
(1.03-1.54)
1.62
(1.33-2.00)
2.01
(1.63-2.48)
2.66
(2.13-3.56)
3.25
(2.51-4.37)
3.93
(2.91-5.41)
4.69
(3.32-6.64)
5.84
(3.95-8.48)
6.80
(4.42-9.87)
1 -hr
1.27
(1.05-1.54)
1.50
(1.24-1.82)
1.94
(1.59-2.36)
2.37
I (1.93-2.89)
3.05
2.44-3.98)
3.64
(2.83-4.80)
4.31
(3.21-5.82)
5.04
(3.59-7.01)
6.12
(4.17-8.74)
7.01
(4.61-10.0)
-fir 24
1.51
(1.26-1.81)
1.78
I (1.48-2.14) '
2.27
I (1.89-2.74)
2.74
1{(2.26-3.31)
3.45
I (2.78-4.42)
4.06
(3.17-5.26)
4.73
(3.56-6.29)
5.46
(3.92-7.47)
6.51
(4.48-9.16)
7.37
(4.90-10.4)
2-d$,
1.73
(1.46-2.06)
2.06
(1.73-2.45)
2.64
(2.21-3.15)
3.16
(2.62478)
3.92
(3.16-4.92)
4.54
(3.57-5.78)
5.20
(3.93-6.79)
5.91
(4.27-7.94)
6.90
(4.78-9.55)
7.69
(5.17-10.8)
3- day
1.89
(1.60-2.24)
2.23
(1.88-2.64)
3.33
(2.79-3.97)
4.10
(3.33-5.12)
4.74
(3.74-5.98)
5. 40
6.12
(4.45-8.16)
7.12
(4.97-9.77)
7.92
(5.36-11.0)
4 -day
2.02
(1.71-2.38)
2.36
(2.00-2.78)
2.95
(2.49-348)
ll 3.48
(2.92-4.12)
4.25
(3.46-5.27)
I 4.89
(3.87-6.14)
5.56
(4.25-7.17)
6.28 i
(4.59-8.33)
7.29
(5.10-9.94)
8.09
(5.50-11.2)
-day
2.30
(1.97-2.69)
2.69
(2.29-3.14)
3.34
(2.84-3.91)
3.91
(3.30-4.60)
4.72
(3.86-5.77)
5.37
(4.28-6.65)
6.04
(4.64-7.68)
6.74
(4.96-8.82)
7.71
(544-10.4)
8.47
(5.81-11.6)
10 -day
2.55
(2.19-2.96)
2.97
(2.55-3.45)
3.68
(3.14-4.29)
4.28
(3.63-5.01)
5.12
(4.20-6.20)
5.78
(4.62-7.11)
6.45
(4.98-8.14)
7.15
(5.28-9.27)
8.08
(5.73-10.8)
8.80
(6.07-11.9)
20 -day
3.25
_
(2.81-3.73)
.
375
(3.24-4.31)
_ 4.57
(3.93-5.27)
5.24
(4.49-6.07)
6.16
(5.08-7.34)
6.86
(5.53-8.31)
. 7
75
(5.89-9.391
8.27
(6.16-10.6)
9.20
(6.58-12.1)
9.90
(6.90-13.2)
3.81
(3.31-4.35)
4.37
(3.80-5.00)
5.29
(4.57-6.06)
6.03
(5.19-6.94)
7.03
(5.83-8.31)
7.79
(6.31-9.35)
8.54
(6.68-10.5)
10.2
(7.38-13.3)
11.0
(7.70-14.6)
45 -day
4.48
(3.91-5.08)
5.14
(4.49-5.84)
6.20
u, (5.40-7.06)
7.06
(6.11-8.07)
8.20
i (6.82-9.61
9.05
(7.36-10.8)
9.87
(7.76-12.0)
10.7
(8.04-13.4)
11.7
(8.48-15.1)
12.5
(8.81-16.4)
e
60 -day
D 5.02
(4.40-5.67)
518
(5.07-6.54)
7.00
(6.11-7.94)
7.97
(6.92-9.07)
9.24
(7.72-10.8)
10.2
(8.32-12.1)
11.1
(8.74-13.4)
12.0
(9.04-14.9)
13.1
(9.49-16.7)
13.8
(9.82-18.1)
1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS).
Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates
(for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper
bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PM P values.
Please refer to NOAA Atlas 14 document for more information.
Back to Top
PF graphical
https://hdsc.nws.noaa.govlhdsclpfds/pfds_printpage.html `lat=40.2823&Ion=-104.7758&data=depth&units=english&series=pds 1/4
8/4/2021
Precipitation Frequency Data Server
PD'S-based depth -duration -frequency (DX) curves
Latitude: 40.28230, Longitude: -1043758°
14
12
10
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14
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Average recurrence interval (years)
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Created (GMT): Wed Aug 4 18:18:40 2021
Back to Top
Maps & aerials
Small scale terrain
Avraga recurrence
interval
(years)
1
10
25
50
100
200
500
1 000
Duration
5 —nn
10 -min
15 -min
30 -min
60 -min
2-n r
3 -hr
12 -hr
24 -hr
2 -day
3 -day
4 -day
7 -day
10 -clay
20 -dad
30 -day.
45 -day
60 -day
https://hdsc.nws.noaa.govlhdsclpfds/pfds_printpage.html `Iat=40.2823&Ion=-104.7758&data=depth&units=english&series=pds
2/4
8/4/2021
Precipitation Frequency Data Server
Weld County Rd 44
3km
21ni
Large scale terrain
Large scale map
i
Fort Collins
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https://hdso.nws.noaa.govlhdsolpfds/pfds_printpage.html `lat=40.2823&Ion=-104.7758&data=depth&units=english&series=pds
3/4
8/4/2021 Precipitation Frequency Data Server
Back to Top
US Department of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
National Water Center
1325 East West Highway
Silver Spring, MD 20910
Questions?: HDSC.Questions@noaa.gov
Disclaimer
https://hdsc.nws.noaa.govlhdsclpfds/pfds_printpage.html `lat=40.2823&Ion=-104.7758&data=depth&units=english&series=pds 4/4
Attachment 5
USDA Soils Mapping and Documentation
USDA UStates
a Department of
Agriculture
NKS
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
Custom Soil Resource
Report for
Weld County,
Colorad
Southern Part
August 2, 2021
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.goviwpsi
portal/nres/main/soils/health/) and certain conservation and engineering
applications. For more detailed information, contact your local USDA Service Center
(https://offices.sc.egov.usda.govllocator/app?agency=arcs) or your NROS State Soil
Scientist (http://www.nres.usda.govfwpslportal/nres/detaillsoils/contactusl?
aid=nres 14.2 p2_053951).
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 f=ederal agencies, State agencies including the
Agricultural Experiment Stations, and local agencies. The Natural Resources
Conservation Service (N RCS) has leadership for the Federal part of the National
Cooperative Soil Survey.
Information about soils is updated periodically. Updated information is available
through the N RCS 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 assistance 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 Independence 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
Contents
Preface 2
How Soil Surveys Are Made 5
Soil Map 8
Soil Map 9
Legend 10
Map Unit Legend 11
Map Unit Descriptions 11
Weld County, Colorado, Southern Part 13
69—Valent sand, 0 to 3 percent slopes 13
70—Valent sand, 3 to 9 percent slopes 14
72 Vona loamy sand, 0 to 3 percent slopes 16
References 18
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 identify 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 additional data 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 defined by a
unique combination of soil components and/or miscellaneous areas in predictable
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. If 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 of
mapping, intensity of mapping, design of map units, complexity of the landscape,
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 significantly 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 scientists
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. Interpretations for all of the soils are field 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 specific 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.
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.
8
40° 16'9"N
40° 15' 38" N
1040 43' 20" W
Cop
523700
5223000
Custom Soil Resource Report
Soil Map
523900
524000
522410D
524200
soCe
V®
famPlib
Sus
Soil Map may not be wall Is scale.
523700
52 900
Map Scale: 1:4,710 if printed on A portrait (8.5' x 11") sheet.
524000
Meters
0 so 100 200 300
Feet
0 200 400 800 1200
Map projection: Web Mercator Corner coordinates: WGSB4 Edge tics: UTM Zone 13N WGSS4
52430D
t'
t PaL411114
1040 42' 49" W
524100
524200
524300
1040 42' 49" w
4
4
8
40° 16'9"N
40° 15'38"N
9
Custom Soil Resource Report
MAP LEGEND
Area of Interest (01)
Area of Interest (AO!)
Soils
pabo
•
Soil Map Unit Polygons
Soil Map Unit Lines
Soil Map Unit Points
Special Point Features
a
-
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
Gravelly Spot
Landfill
Lava Flow
Marsh or swamp
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide orSlip
Sodic Spot
Spoil Area
Stony Spot
Very Stony Spot
Wet Spot
Other
Special Line Features
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
sozossis US Routes
Major Roads
Local Roads
Backgr a nd
Aerial Photography
MAP INFORMATION
The soil surveys that comprise your AO1 were mapped at
1:24,000.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Weld County, Colorado, Southern Part
Survey Area Data: Version 19, Jun 5, 2020
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Jul 19, 2018 Aug
10,2018
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
10
Custom Soil Resource Report
Map Unit Legend
Map Unit Symbol
Map Unit Name
Acres in Aol
Percent of Aol
69
Talent
slopes
sand, 0 to 3
percent
31.3
35.6%
70
Valent
slopes
sand, 3 to 9
percent
44.3
50.3%
72
Vo
a loamy sand,
percent slopes
0 to 3
12.4
14.0%
Totals for Area of Interest
88.0
100.0%
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 limits 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, however, 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. If 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
components may not have been observed, and consequently they are not
mentioned in the descriptions, especially where the pattern was so complex that it
was impractical to make enough observations to identify all the 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
11
Custom Soil Resource Report
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. If intensive use of small areas is planned, however,
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 general facts about the unit and gives important soil
properties and qualities.
Soils that have profiles that are almost alike make up a soil 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 soil 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 association 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.
12
Custom Soil Resource Report
Weld County, Colorado, Southern Part
69 Valent sand, 0 to 3 percent slopes
Map Unit Setting
National map unit symbol. 2tczd
Elevation: 3,000 to 5,210 feet
Mean annual precipitation: 13 to 20 inches
Mean annual air temperature: 48 to 52 degrees F
Frost -free period: 130 to 166 days
Farmland classification: Farmland of local importance
Map Unit Composition
Valent and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Valent
Setting
Landform: Interdunes
Landform position (two-dimensional): Footslope, toeslope
Landform position (three-dimensional,,): Base slope
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Noncalcareous eolian sands
Typical profile
A - 0 to 5 inches: sand
AC 5 to 12 inches: sand
CI - 12 to 30 inches: sand
C2 - 30 to 80 inches: sand
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Excessively drained
Runoff class: Negligible
Capacity of the most limiting layer to transmit water (sat): High to very high (6.00
to 39.96 in/hi)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of pending: None
calcium carbonate, maximum content: 1 percent
Maximum salinity: Nonsaline (0.1 to 1.9 mmhos/cm)
Available water capacity: Very low (about 2.4 inches)
Interpretive groups
Land capability classification (irrigated).- 4e
Land capability classification (nonirrigated): 6e
Hydrologic Soil Group: A
Ecological site: R067BY01 S O - Deep Sand, R072XA021 KS - Sands (North) (PE
16-20)
Hydric soil rating: No
13
CustomSoil Resource Report
Minor Components
Julesburg
Percent of map unit: 5 percent
Landform: Interdunes
Landform position `two-dimensional): Toeslope
Landform position (three-dimensional): Base slope
Down -slope shape: Linear
Across -slope shape: Linear
Ecological site: R067BY024CO - Sandy Plains, I O72 A02 K - Sandy (North)
Draft (April 2010) (PE 16-20)
Hydric soil rating: No
Dailey
Percent of map unit: 5 percent
Landform: Interdunes
Landform position (two-dimensional): Toeslope
Landform position (three-dimensional): Base slope
Down -slope shape: Linear
Across -slope shape: Concave
Ecological site: R067 BYO 15OO - Deep Sand, R,o72XA02 KS - Sandy (North) Draft
(April 2010) (PE 16-20)
Hydric soil rating: No
Vona
Percent of map unit: 5 percent
Landform: Interdunes
Landform position (two-dimensional): Toeslope
Landform position (three-dimensional): Base slope
Down -slope shape: Linear
Across -slope shape: Linear
Ecological site: R067BY024CO - Sandy Plains, Ro72 A022KS Sandy (North)
Draft (April 2010) (PE 16-20)
Hydric soil rating: No
70-Valent sand, 3 to 9 percent slopes
Map Unit Setting
National map unit symbol: 2tczf
Elevation: 3,050 to 5,150 feet
Mean annual precipitation: 12 to 18 inches
Mean annual air temperature: 48 to 55 degrees F
Frost -free period: 130 to 180 days
Farmland classification: Not prime farmland
Map Unit Composition
Valent and similar soils: 80 percent
Minor components: 20 percent
Estimates are based on observations, descriptions, and transacts of the mapunit
Custom Soil Resource Report
Description of Valent
Setting
Landform: Hills, dunes
Landform position (two-dimensional): Backslope, shoulder, footslope, summit
Landform position (three-dimensional): Side slope, head slope, nose slope, crest
Down -slope shape: Linear, convex
Across -slope shape: Linear, convex
Parent material: Noncalcareous eolian sands
Typical profile
A-0to 5inches: sand
Ac -5 to 12 inches: sand
Cl - 12 to 30 inches. sand
C2 - 30 to 80 inches: sand
Properties and qualities
Slope: 3 to 9 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Excessively drained
Runoff class: Very low
Capacity of the most limiting layer to transmit water (K at): High to very high (6.00
to 39.96 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 1 percent
Maximum salinity: Nonsaline (0.0 to 1.9 mrnhoslcm)
Available water capacity: Very low (about 2.4 inches)
Interpretive groups
Land capability classification (irrigated): 4e
Land capability classification (nonirrigated): 6e
Hydrologic Soil Group:
Ecological site: R0 7BYg15CO - Deep Sand, R072XY1 g9KS - Rolling Sands
Hydric soil rating: No
Minor Components
Dailey
Percent of map unit: 10 percent
Landform: Interdu nes
Landform position (two-dimensional): Footslope, toeslope
Landform position (three-dimensional,):Base slope
Down -slope shape: Linear
Across -slope shape: Concave
Ecological site: R067BY015CO - Deep Sand, R072XA021 IBS - Sands (North) (PE
16-20)
Hydric soil rating: No
Vona
Percent of map unit: 5 percent
Landform: Hills
Landform position (two-dimensional): Footslope, backslope, shoulder
Landform position (three-dimensional): Side slope, head slope, nose slope, base
slope
15
Custom Soil Resource Report
Down -slope shape: Linear
Across -slope shape: Linear
Ecological site: R067BY024CO - Sandy Plains,
Draft (April 2010) (PE 16-20)
Hydric soil rating: No
R072XAQ22KS - Sandy (North)
Haxtun
Percent of map unit: 5 percent
Landform: Interdunes
Landform position (two-dimensional): Footslope, toeslope
Landform position (three-dimensional): Base slope
Down -slope shape: Linear
Across -slope shape: Concave
Ecological site: R067BY024CO - Sandy Plains, 8072 Y111 KS Sandy Plains
Hydric soil rating: No
72 Vona loamy sand, 0 to 3 percent slopes
Map Unit Setting
National map unit symbol: 363r
Elevation: 4,600 to 5,200 feet
Mean annual precipitation: 13 to 15 inches
Mean annual air temperature: 48 to 55 degrees F
Frost -free period: 130 to 160 days
Farmland classification: Farmland of local importance
Map Unit Composition
Vona and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit
Description of Vona
Setting
Landform: Plains, terraces
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Alluvium and/or eolian deposits
Typical profile
Hsi - 0 to 6 inches: loamy sand
H2 - 6 to 28 inches: fine sandy loam
H3 - 28 to 60 inches: sandy loam
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: More than 80 inches
Drainage class.- Well drained
Runoff class: Very low
capacity of the most limiting layer to transmit water (sat): High (1.98 to 6.00
inihr)
16
Custom Soil Resource Report
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 15 percent
Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 rnrnhos/cm)
Available water capacity: Moderate (about 6.5 inches)
Interpretive groups
Land capability classification 'irrigated): 3e
Land capability classification ('nonirrigated): 4e
Hydrologic Soil Group: A
Ecological site: R067BY024CO - Sandy Plains
Hydric soil rating: No
Minor Components
Remm it
Percent of map unit: 10 percent
Hydric soil rating: No
Valent
Percent of map unit: 5 percent
Hydric soil rating: No
17
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. Carter, 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.
Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service.
U.S. Department of Agriculture Handbook 18. http://www.nrcs.usda.gov/wpsiportali
nresldetaillnationallsoilst'acid=nres142p2_U 54262
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.nres.usda.gov/wpsiportallnresldetail/national/soils/ ?cid=nres142p2_0 77
Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of
Agriculture, Natural Resources Conservation Service. http://
www.nrcs.usda.goviwpsiportalinrcsidetailinationalisoilsncid=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 Department of Agriculture, Natural Resources Conservation Service.
National forestry manual. http://www.nrcs.usda.goviwpsiportalinrcsidetailisoilsi
home/?cid=nresl 42p2_OS3374
United States Department of Agriculture, Natural Resources Conservation Service.
National range and pasture handbook. http:IIwww.nres.usda.goviwpslportallnresl
{detail/national/I and use/rang epasture/?cid=stelprdb104 0► 4
18
Custom Soil Resource Report
United States Department of Agriculture, Natural Resources Conservation Service.
National soil survey handbook, title 430 -VI. http://www.nres.usda.gov/wps/portal/
nres/detail/soils/scientists/?cid=nres14 'p _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. J.S. Department of Agriculture Handbook
296. http://www.nres.usda.gov/wpslportal/arcs/detail/nationallsoiIs!?
cid =nres 142 p2_0 53624
United States Department of Agriculture, Soil Conservation Service. 1961. Land
capability classification. U.S. Department of Agriculture Handbook 210. http://
www.nrcs.usda.gov/InternetiFSE D U M E NTS/n res 142p _052290. pd f
19
Attachment 6
Exhibit Map for Rural land ivisiofl (Dedecker hand Surveying)
300
CV
N
S8
43.102 Ac. Cross
42.117 Ac. Net
E 1/SE 1/4
SECTION 36 T.N., R.66W.
PARCEL # 105736000015
17901 WCR #38
PLATTEVILLE, Co
81.34 Acsys Gross
397.47'
18.178 M. Groan
17512 Ac. Net
0 300
Pmnimimmi
SCALE 111=300'
SCALE' 1" = 3O0'
DATE 07-08-2021
DRAWNi MJD I CHECKED MJD
420.08
EXISTING -
MODULAR co
HOME ,i
C
N8748'20 E 1342.8W
WELD COUNTY ROAD #38
8.352 Ac. Cross
5.044 Ac. Net
420.08'
cN
0.4
co
co w
It
r
0
core
OD
git
J
EXHIBIT MAP FOR
PROPOSED RURAL LAND DIVISION OF
PROPERTY LOCATED IN THE E.1/2 OF
THE SE 1/4 OF SECTION 36, TAN.,
R.66W. WELD COUNTY, COLORADO
aka; 17901 WCR 38
PLATTEVILLE, COLORADO
DEDECKER
LAND SURVEYING
4301 FAWN TRAIL
LOVELAND. COLORADO 80537
C (970) 217-2331 li (970) 663-2013
PRDJCCT it 2021-43B
1 DRAWING P
w'tsitl NO. a2
1 Cc
7/09/2021
TRAFFIC NARRATIVE
For
17901 CR 38 Platter. illc CO,
80612
Roundtrips per day: There are 4 residences with an average of 2 vehicles. Bringing the traffic pattern of
10 vehicles for the four divided lots. This could result in 1 round trip per household per day.
Travel routes: Since the Parcel rural land division is closest to US Hwy 85, most vehicles would be heading
towards Hwy 85 for faster commute.
Travel route distribution: As far as the distribution, 65% would come from the south of Platteville. 25%
from the north of Platteville and 5% from the east and west of Platteville.
Time of day highest traffic volumes expected: The time of the day of the most traffic volume would be in
the morning and early evening.
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