HomeMy WebLinkAbout1977-05-12 Soil Percolation ReportSOIL TESTING SERVICES OF MINNESOTA, INC.
2405 ANNAPOLIS LANE
MINNEAPOLIS, MINNESOTA 55441
May 12, 1977
SUITE 280
612-559-1900
Van Eeckhout Builders
Wayzata Boulevard
Wayzata, Minnesota 55391
Attention: Mr. Chuch Van Eeckhout STS Job No. 91012
Re: Soil Percolation Test 130 South Brown Road, Long Lake, Minnesota.
Gentlemen:
We were retained by you to perform soil percolation tests at the above property.
Four (^*) percolation tests were performed on May 7» 1977. The procedure was in
accordance with the method designated by the Minnesota Department of Health, 1971»
and somewhat modified by our engineering judgment.
The attached loc sheet indicates the observed percolation rates at each of the
test holes (P-1 through P-4). The observed percolation rates at each of the test
holes was within the maximum allowable rate of 60 minutes per inch, as recommended
by the Minnesota Department of Health'. Based on thesa observations, the installation
of an individual soil absorption system will be acceptable in the area tested.
In addition to the above percolation test holes, one (l) test boring was drilled
to a depth of 8.0 feet below the existing ground surface to determine if the water
table v/as less than that depth. The .oils encountered in this boring consisted of
0 1 foot thick layer of dark brown to black silty and sandy clay topsoil (OL). Under
lying to a depth of 8.0 feet by brown silty and sandy clay containing a trace of gravel
(CL-SC). Ground water was not encountered either during the drilling operations or
48 hours after completion of the boring. Based on these readings, it is our opinion
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RARIDS. MARQUETTE. MICHIGAN • MINNE APOLIS, VIRGINIA. MINNESOTA # ST LOUIS.
MISSOURI • FAIRFAX. VIRGINIA • GREEN BAY, MILWAUKEE. WAUSAU. WISCONSIN
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Mr. Chuck Van Eeckhout
May 12. 1977
Page two
that the level of the ground water table at the time of the testing was below
a depth of 8 feet from the ground surface at the boring location, or below an
elevation of 83.9 feet.
Fluctuations in the water level may occur over a wide range, depending upon
the amount of precipitation, evaporation, and surface runoff, which will vary with
the seasonal changes.
Based on the test results, installation of individual soil absorption disposal
systems should be acceptable for recommended design rate of 60 minutes per inch,
requiring a minimum of 330 square feet of absorption area per bedroom. The observed
water table in the area is at a depth greater than 6.5 feet below the existing ground
surface, making an absorption system acceptable according to State Code Regulation.
The provisions of the "Ordinance and Code Regulating Individual Sewage Disposal Systems"
(1971)» as recommended by the Minnesota Department of Health, as well as any local
ordinances and codes, should be followed in the design and installation of the disposal
system.
If there are any questions with regard to this report, please do not hesitate
to contact us.
Very truly yours,
SOIL TESTING SERVICES OF MINNESOTA, INC.
James H. Overtoom
Registered Professional Engineer, Minnesota
Enclosufes!Location Diagram
Percolation Test Summary Sheet
Unified Soil Classification System
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SOIL TESTING SERVICES
OP MINNESOTA. INC.
240S ANNAPOLIS LANS
MINNEAPOLIS, MINN. SS441
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Percolation Test STS Job No.31012
Summary Sheet
Client
Site
Van Eeckhout Builders
]
130 South Brown Road
Lona Lake, Minnesota
HOLE NUMBER
P-1 P-2 P-3 P-4
DEPTH OF HOLE
3.0 feet 3.0 feet 3.0 feet 3.0 feet
Iercolation rate
MINUTES/iNCH 40 min./Inch 34 min./Inch 48 min./inch 48 min./Inch
SOIL PROFILE DEPTH
0-0.8'
0.8-3
c
DESCRIPTION DEPTH
Dark brown to black
silty and sandy
clay topsoil (OL)
0-1.5‘
Brown silty and
sandy clay - trace
gravel - (CL-SC)
1.5-3'
DESCRIPTION DEPTH
Dark brown to blacl
silty and sandy
clay topsoi1 (OL)
0-1.0'
Brown silty and
sandy clay - trace
gravel - (CL-SC)
1.0-3'
DESCRIPTION DEPTH
Dark brown to blac
silty and sandy
clay topsoil (OL)
0-0.9'
Brown silty and
sandy clay - trace
gravel - (CL-SC)
0.9-3'
DESCRIPTION
Dark brown to
black silty and
sandy clay topsoi
(OL)
Brown silty and
sandy clay - traci
gravel - (CL-SC)
REMARKS
Elevation 92.2 Elevation 93.0 Elevation 92.5 Elevation 91.9
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