HomeMy WebLinkAbout1980-09-18 Septic System Design ReportAc 3 3 so Fo x
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SIT' EVALUATION SPORT
FOR THE FULLERTON PROP;R��
ORONO, riINN ;:ivTA
9-18-do
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On September 14, 1980 two sites were tested as alternative sites
for two existing homes and their present drainfield systems. Two per-
colation holes were tested and one soil boring taken on each site.
The percolation holes were dug 6 inches in diameter and 3 feet in
depth. The soil borings were dug 6 inches in diameter to the 4 foot
depth and 3 inches in diameter to the 8 foot depth. All holes were dug
with bucket type hand augers.
Both sites yielded percolation rates and water table depths suf-
ficient for standard drainfield systems. The holes on the no 'h site
contained bectsr soil at greater depths while the south site had bet-
ter soil in the upper layers.
A pump and pumping tank will be required on the south site to
reach the drainfield area which is at a higher elevatior_. For the 2
bedroom house to be served 600 sq.ft. of trenches will be needed,
which could be two trenches 3 feet wide and 100 feet long. If possi-
ble, the trenches should be located more in the area near hole 1
which is more permeableo and at about a 3-1� foot uentn_
T120 south area for the larger house was located in� a�clearing
half way to the lake and contained loamy and sandy loam soils at the
upper depths which is very good material for drainfields. Because
there is no problem in servingthis
area by gravity from the existing
tanks and better soil is at the top, these tenches shoulL be kept
about 2 feet deep in thef:natural soil. Although the house is larger,
the drainfield will be based on a $ bedroom house :ahich mould require
950 sq. ft. of trench area or about 4 trenches 3 feet wide and 60 feet
long.
e existing tanks on both houses should also be checked for suit-
ability. If any additional information is needed, please contact me.
Sincerely,
%P--"RCOR, IQNC.
Park S. Gronberg, ,
North Site
Percolation lesul is
Hole No. ; Material tercolation mate
P-1 Light Brown Loam 10.0 Min./inch
P-2 Brown Clay Loam b0.0
The average percolation rate is 35.0 minutes per inch.
Soil Boring
S B 1
Depth(ft. ). Material
0,0-0.5 Black Loam
0,>-3.:i Brown Clay Loam
3.5-8.0 Light Brown Loam
196- mottled}} soil or rater table after 24 hours,
South_Si Site
I Percolation Hesults
Hole e, No. I Material rercolation Rate
P-3 Dark Brown Loam 20.0 Min./inch
Black Loam 6.9
The average percolation rate is 13.9 minutes per inch.
Soil Boring
S B 2
Depth(ft.) Material
0,0-3.0 Black Loam
3.0-4.0 Black Sandy Loam
4.0-5.0 Brown Loam
5.0-6.0 Reddish Bra. Coarse Sandy Loam
6.0-7.0. Grayish Brown Loaf
7.0-8.0 Gray Clay Loam
Mottled soil at 7.0 feet and water table at 7.9 feet after 24 hours,
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