HomeMy WebLinkAboutDOWLING LT 43
SOILS INVESTIGATION
PARNELL LOCKHART PROPERTY
Lot 43, Dowling Subdivision
Anchorage, Alaska
Report to:
PARNELL LOCKHART
April 14, 1972
Prepared by:
HEWITT V. LOUNSBURY & ASSOCIATES
723 West 6th Avenue
Anchorage, Alaska 99501
INTRODUCTION
This report is the result of our field soil investigation
conducted April 14, 1972 on the Lockhart Property: LOt 43,
Dowling Subdivision, Anchorage, Alaska'
The purpose of the investigation was to define in detail the
soils conditions within the property,, and to determine if it
was suitable for development utilizing a septic tank-seepage
pit sewer system.
INVESTIGATION
Our investigation was by a case tractor mounted backhoe. Test
holes were dug at two locations on the property. The first in
the northwest corner and the second near the center.
SUBSURFACE'SOILS CONDITIONS
The first, hole in the northwest corner revealed t 1~2 foot of
forest floor and topsoils, below this layer from I 1/2 to 4 1/2
feet is a layer of clean, gray well graded sand. Below the sand
is a strata of blue gray silty clay to a depth beyond 12 feet.
Test hole No. 2 revealed 1 1/2 feet of forest floor and topsoil.
Then light brown clay followed by a gray brown silty clay to a depth
below 12 feet.
CONCLUSION
From the information gathered during our investigation we
conclude that it is not feasable to construct the aforementioned
type of sewer system to serve this propert~
This decision is based primarily on the fact that the underlying
silty clay is relatively imoerious to the percolation of water,
therefore; no system may be constructed above or in this soil.
The possible use of a holding tank is at present time allowed for
a period not to exceed. 90 days.. Then only as an interim system
while'awaiting connection to the Greater Anchorage Area Borough
sanitary sewer system.
Respectfully Submitted,
HEWITT V. LOUNSBURY & ASSOCIATES
~rles W~nwr~ght, ~n~clan
Loren H. Lounsbury, P.E.
£ aG OF TEST DOt~iNG
- ' ' Hewitt V Lounsbury ~ Associu,
Completed .,
Engineers -- Surveyors
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Total Depth 1'~-~ ~
Ground Water '"
Table
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~Inchoroge~ . Alaska
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Total Depth
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