HomeMy WebLinkAbout961100.tiff 4 McRAE & SHORT, INC.
1231 8th Avenue
Greeley, Colorado 80631
Telephone (97Q 356-3101
Engineering, Surveying, Planning & Land Development
June II , 1996
PROJECT NO. 96144
Weld County Health Department
Environmental Health Services
1517 - 16th Avenue Court
Greeley, CO 80631
RE: INDIVIDUAL SEWAGE DISPOSAL SYSTEM USR #1117
SHARON STRUNK (66354 WCR 390)
P.O. BOX 62, HEREFORD, CO. 80732
Gentlemen,
We have prepared this report to evaluate the septic systems on the "Strunk"
property, which lies 1 mile Southeast of Hereford, Colorado. The total pro-
perty contains 1550 Acres, more or less, and is located in Section 35, Town-
ship 12 North, Range 62 West of the 6th P.M. , Weld County, Colorado.
The property contains two houses. The "Ranch House" was built in 1920 and.
contains 2 bedrooms. The new home was built in 1950 and contains 3 bedrooms.
Each unit has its own septic system.
The Strunks propose to use the extra bedrooms as a "Bed & Breakfast" business.
This evaluation is to see of the existing septic systems are adequate for
this use.
The Soil Conservation Service soils map and information for this area is
attached. It shows that the underlying soils at the location of the improve-
ments is Ascalon, fine sandy loam, 0 to 6% slopes. This soil is shown to have
a moderate permeability rate.
The Strunks obtained the services of a septic system installer who helped
determine the location and size of the septic systems. The inspection also
determined that each system was well constructed and in good working order.
For analysis, a sewage flow rate of 60 gallons per person per day will be used.
961100
Weld County Health Department June 11 , 1996
Environmental Health Services PROJECT NO. 96144
RE: INDIVIDUAL SEWAGE DISPOSAL SYSTEM USR #1117
SHARON STRUNK (66354 WCR 390)
P.O. BOX 62, HEREFORD, CO. 80732
DESIGN:
SEWAGE FLOWS: (assuming 100% occupancy)
2-Bedrooms:
2 bedrooms X 2 people X 60 gpd = 240 gpd
Peak Flow @ 150% X 1 .5
Design Flow 360 gpd
3-Bedrooms:
I bedroom X 2 people X 75 gpd = 150 gpd
2 bedroom X 2 people X 60 gpd = 240 gpd
390 gpd
Peak Flow @ 150% X 1 .5
Design Flow = 585 gpd
SEPTIC TANK DESIGN :
30 hour retention of 24 hour flow.
2-Bedrooms:
1 .25 X 360 gpd = 565 gallons
3-Bedrooms:
1 .25 X 585 gpd = 735 gallons
Each house has an existing 1500 gallon Septic Tank: The first compartment
1000 gallons, second compartment 500 gallons. The septic tanks exceed the
requirements.
LEACH FIELD:
Assume percolation rate of 30 minutes per inch (mpi ) . Q = Design Flow
T = Percolation Rate
Area = Q V T
3.5
961100
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Weld County Health Department June II , 1996
Environmental Health Services PROJECT NO. 96144
RE: INDIVIDUAL SEWAGE DISPOSAL SYSTEM USR #1117
SHARON STRUNK (66354 WCR 390)
P.O. BOX 62, HEREFORD, CO. 807,32
LEACH FIELD: (CONTINUED) .
2-Bedrooms:
A = 360 V30 = 565 SF
3.5
Area of existing leach field:
3 lines X 85' long X 3' wide = 765 SF
(Therefore, this leach field is adequate. )
3-Bedrooms:
A = 585 ✓ 30 = 915 SF
3.5
Area of existing leach field:
3 lines X 100' long X 3' wide = 900 SF
(Therefore, this leach field is adequate. )
NOTE: The area above the leach field should be fenced or barricaded to prevent
large animals or vehicular traffic from using the area.
Based on the above information and calculations, it is my judgement that the
existing Individual Sewage Disposal System for each house will meet the require-
ments of the Weld County Health Department and are suitable for the proposed
use as a "Bed & Breakfast" facility.
The 3-bedroom house will be at 100% of the design. Therefore, care should be
taken in the use and maintenance of the system and frequent observations made
to determine that the system is workinan mje l• ,
Respectfully, .t4-... 'B .i4j
=
Mc-Raae�?& Short, Inc. Nu° 6616 'T' o
7.3
2(e 04 eJ�a,G ./tee ?A' Via;
s1 Ze-
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Gerald B. McRae, Professional Engind��,\, �r(tj['gQ. .
Land Surveyor, Colorado Reg. No. 6616 """"
Copy to: Sharon Strunk
Enclosures: Vicinity Map, Soils Information and Field Sketch of existing system.
961100
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STRooK USR N1117
,s ��� SOILS INFORMATION
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Weld County, Colorado, Northern Pal • 13
4—Ascalon fine sandy loam, 0 to 6 percent slopes. 5—Ascalon fine sandy loam, 6 to 9 percent slopes.
This deep, well drained soil is on smooth to moderately This deep, well drained soil is on moderately dissected
dissected plains. It formed in calcareous loamy alluvium. to highly dissected plains. It formed in calcareous loamy
Typically, the surface layer is dark brown fine sandy alluvium.
loam 8 inches thick. The subsoil is sandy clay loam 14 Typically, the surface layer is dark brown fine sandy
inches thick. The substratum to a depth of 60 inches or loam 6 inches thick. The subsoil is sandy clay loam 15
more is calcareous sandy loam. In some areas the inches thick. The substratum to a depth of 60 inches or
surface layer is loam. more is calcareous sandy loam. In some areas the
Included in this unit are small areas of Ascalon fine surface layer is loam.
sandy loam that has slopes of 6 to 9 percent, Olney fine Included in this unit are small areas of Altvan fine
sandy loam, and Otero sandy loam. Also included are sandy loam, Cascajo gravelly sandy loam, and Peetz
some areas of Rock outcrop. gravelly sandy loam. Also included are some areas of
Permeability of this Ascalon soil is moderate. Available Rock outcrop.
water capacity is high. Effective rooting depth is 60 Permeability of this Ascalon soil is moderate. Available
inches or more. Runoff is slow to medium, and the water capacity is high. Effective rooting depth is 60
hazard of water erosion is slight to moderate. The inches or more. Runoff is medium to rapid, and the
hazard of soil blowing is moderate. hazard of water erosion is high. The hazard of soil
This unit is used as nonirrigated cropland and blowing is moderate.
This unit is used as rangeland and nonirrigated
rangeland. Winter wheat is the main crop.
This unit is well suited to winter wheat, barley, oats, cropland. Areas of nonirrigated cropland are poorly
suited for use as rangeland and should be seeded to
and sorghum. Because precipitation is not sufficient for
annual cropping, a cropping system that includes small adapted grasses.
grain and summer fallow is most suitable. Precipitation The potential plant community on this unit is mainly
blue grama, western wheatgrass, sedges, and
usually is too low for crops on this unit to make efficient buffalograss. The average annual production of air-dry
use of fertilizer.
vegetation ranges from 400 to 1,300 pounds.
Maintaining crop residue on or near the surface blowing, and helps to If the range is overgrazed, the proportion of preferred
reduces runoff, reduces soil
forage plants decreases and the proportion of less
maintain soil tilth and organic matter content. Stubble- preferred forage plants increases. Therefore, livestock
mulch farming, striperopping, and minimum tillage help to forage plants go Therefore, livestock
grazing should be managed so that the desired balance
control erosion and conserve moisture. Terraces reduce of preferred species is maintained in the plant
runoff and the risk of erosion and help to conserve community.
moisture. Range seeding is suitable if the range is in poor
The potential plant community on this unit is mainly condition. The plants selected for seeding should meet
blue grama, western wheatgrass, sedges, and the seasonal requirements of livestock or wildlife, or
buffalograss. The average annual production of air-dry both. Other management practices that are suitable for
vegetation ranges from 500 to 1,500 pounds. use on this unit are proper range use, deferred grazing,
If the range is overgrazed, the proportion of preferred and rotation grazing. If the plant cover is disturbed,
forage plants decreases and the proportion of less protection from erosion is needed. Loss of the surface
preferred forage plants increases. Therefore,-livestock layer results in a severe decrease in productivity and in
grazing should be managed so that the desired balance the potential of the soil to produce plants suitable for
of preferred species is maintained in the plant grazing.
community. I This unit is well suited to windbreaks and
Range seeding is suitable if the range is in poor ienvironmental plantings. Supplemental irrigation may be
condition. The plants selected for seeding should meet needed when planting and during dry periods.
the seasonal requirements of livestock or wildlife, or This map unit is in capability subclass Vle,
both. Other management practices that are suitable for nonirrigated, and in Loamy Plains range site.
use on this unit are proper range use, deferred grazing,
and rotation grazing. If the plant cover is disturbed, 6 sc on- eke nd m x, 3 • 15 •erc t
protection from erosion is needed. Loss of the surface sl es his ap t i n vial d c• uvi and
layer results in a severe decrease in productivity and in nd m erat y di ect to I}teily . see d p ns.
the potential of the soil to produce plants suitable for is it is p en scalrifi fin- san loa and/
grazing. p ent ak ndj amyfaand. he •mp ents
This unit is well suited to windbreaks and thi nit a e so4.
environmental plantings. Supplemental irrigation may be p acticaf toaf STRUNK USR #I117
needed when planting and during dry periods. / Irwfuded in t¢
This map unit is in capability subclass IVe, saridy I am, rf SOILS INFORMATION
nonirrigated, and in Loamy Plains range site. loamy.
961100
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STRUNK USR # 1117
INDIVIDUAL SEWAGE DISPOSAL SYSTEM
FIELD INFORMATION
9611.00
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961190
SOILS, TOPOGRAPHY K VEGETATION
The soils mapping of Weld County has been. completed. The main soils on the
subject are as follows : #1 Altvan fine sandy loam, 0-6% slopes is a deep well
drained soil on smooth to moderately dissected plains. The soil formed in
calcareous gravelly alluvium. *4 Ascalon fine sandy loam, 0-6% slopes is a
deep, well drained soil on smooth to moderately dissected plains . The soil
formed in calcareous loamy alluvium.
*11 Badlands soil consists of gently sloping to steep areas dissected by many
intermittent channels that are entrenched in calcareous soft silt stone, soft
claystone, and fine-grained sandstone. *12 Bankard loamy fine sand, 0-3%
slopes is a deep, well drained to somewhat excessively drained soil on flood
plains . The soil formed in stratified calcareous sandy alluvium. #27 Epping
silt loam, 0-9% slopes is a shallow, well drained soil on slightly dissected
to highly dissected plains . The soil formed in calcareous loamy residuum
derived from silt stone. #29 Haverson loam, 0-3% slopes 3s deep, well drained
on flood plains and adjacent stream terraces . The soil formed in stratified,
calcareous, loamy alluvium. #32 Kim-Mitchell complex, 6-9% slopes is deep,
well drained and formed in calcareous loamy alluvium and colluvium. #44 deny
fine sandy loam, 0-6% slopes is a deep, well drained soil on smooth to
moderately dissected plains . The soil formed in calcareous loamy alluvium.
#51 Peetz gravelly sandy loam, 5-20% slopes is deep, somewhat excessively
drained soil on back slopes and shoulders of moderately to highly dissected
uplands ridges and breaks. The soil formed in calcareous gravelly alluvium.
The slopes on this soil are convex.
#73 Vona sandy loam, 0-3% slopes is deep well drained on smooth to slightly
dissected plains . The soil formed in calcareous sandy alluvial and eolian
material.
The dominant soils are identified above. Generally the soils are deep and
well-drained to moderately drained, on 0-10% slopes, nearly level to gently
rolling to undulating, that formed from calcareous sandy/loamy alluvium and
eolian material, mainly from sedimentary cock. They are usually light
brownish-gray or light-brown loams, consisting of fine sandy loams to gravelly
sandy loams that can be very sandy on the bottom lands and may consist of
finer sands in even lower areas . Permeability is rated moderately rapid to
rapid. Effective rooting depth is 10 to 60 inches or more, depending on the
depth to bedrock. The available water capacity is high to medium, and natural
fertility is low to medium. Wind erosion is raided as moderate to slight, the
hazard of soil blowing is slight . Runoff is rated from slow to medium and the
hazard of soil erosion is slight to moderate.
961100
The native grasses a ipical for this altitude and . aainly bunch grasses,
Prairie Sandreed, Needle and Thread, Blue Grama, Sideoats Grama and Western
Wheatgrass, Thread Leaf Sedge, Fringed Sagewort and other annual and perennial
grasses, forbs and sedges . Production of forage in the pasture is considered
average, as there are no areas of excessively steep hillsides or badlands.4
Because of proper soil management and the good vegetative characteristic of
the ranch, it can be rated as not having a severe wind erosion problem, even
with the existence of high winds during part of the year.
BUILDING SKETCHES
NUL to scale. ;or r
illusLrar ive purposes only. N
Address 66354 County Road #390 `(
36.0'
Bdr. Bath Bdr. g,0,
X8.0'
24.0'
15.0'
Living Room Porch
Kitchen
44.0'
27.0'
Patio 19.0'
10.0'
33.0' I 0' 4.0'
Bdr. 23.0'
Mud Kitchen Bath
Room Bdr.
22.0' 6.0'
14.0' 13.0'
Living Room
15.0' 12.0' Bdr. 12.0'
Bath
35.0'
Main House Front
961190
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