HomeMy WebLinkAbout1982-05-25 Septic System Design InformationSITE F/ALUATIOK REPORT
FOR CHARLES KROGICESS
ORCKO, KIKKESCT h
».
5-25-62
WA'' 2 6 (982
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i7orjn "
On Kay 7-8> 1982 six percolation holes were tested and three
4
soil borings taken on the above property to determine both a pri
mary and alternate drainfield site for a proposed new lot. On May
1H-I5i 1982 two additional holes and one soil boring were tested
for an alternate site for the existing house, and two percolation
holes and one soil boring were taken on the original site since
it appears that the new house would extend into the original pri
mary site and thus a new alternate site would be needed.
a12 of the percolation holes were dug 3-3*5 foet deep and 6
inches in diameter while the soil borings were dug 6 Inches in
diameter to the 14. foot depth and 3 inches in diameter to the re
maining depth. The soYl %iringd were dug with both power and hand
augers while the soil borings were dug with bucket typo hand aug
ers.
Since the house might extend into the original primary site
the new primary site will comprise of holes 2,k$5t and 6 with the
alternate site being holes 7 and 8. Both had very fast percoLa- :
tlon rates which would enable standard or shallow trench systems
to be constructed. Because of the sandier layers a lot of water
seeps through the ground causing a high seasonal water table that
follows the contours of the hill down to the pond. Thus, it will
be necessary to construct some type of diversion for this water
when the drainfield is put in. This will be covered in more de
tail in a system design once the house size and location is
known.
The alternate site for the existing house also had a fast
percolation rate enabling a standard system to be used if the
need ever arises. If any other Information is needed, please
contact me.
Sincerely,
PERCOR, INC.
J
CHARLES KROGNESS PROPERTY
ORCNO, MINNESOTA
LOT 1
col atl^on^osu 11s
Hole No.Material
•
Percolation Rate
P-1 Red 3rn. Sandy Loan 7.7 Min./Inch
P-2 Lt. 3rn. Coarse Sand 6.0 »
P-3 Gray Brn. Loamy Sand 4.7
P-4 Brown Silty Loam 8.0
P-5 Brown Sandy Loam 7.5
P-6 Lt. Brn. Silty Loam 8.0 "
P-7 Brovm* Loamy Sand 3.8 "
P-8 Brown.Clayey Sand 7.5
The average percolation rate fcr holes 2.U.5.6 is 7.4 min./inch.
The average percolation rate for h^les 7,3 is 5.7 min./inch.
Soil Borings
S.B. 4 1 S.3. if 2
Depth(ft.)Material Depth(ft. )Material
0.0-0.2 Black Sandy Loan 0.0-0.2 Black Loam
0.2-1.5 Brn. Sandy Clay 0.2-3.0 Brn. Clay Loam
1.5-3.5 Brn. Sandy Loam 3.0-5.5 Lt. Brn. Silty Loam
3.5-4.5 Dk. Brn. Coarse Gravel 5.5-6.0 Gray Brn. Clay Loam
4.5-5.5 Brown Clay Loam Mottled soil at 5*P ft. and water
5.5-8.0 Gray Silty Clay table at 5 .0 ft. after 24-hrs.
Mottled soil at 5.5 ft. and water
table at 5*8 ft. after 24 hrs.
S.B. # 3 S.B. # 4
Depth(ft.)Material Depth(ft.)Material
0.0-0.3 Dk. Brn. Sandy Loam 0.0-1.0 Black Sandy Loam
0.3-4.0 Brn. Sandy Clay 1.0-3.0 Brn. Sandy Loam
4.0-5.0 Brn. Clay Loam 3.0-6.0 Brn. Sandy Clay
5.0-8.0 Gray Brn. Clay Loam 6.OI7.O Brn. Clay Loam
Mottled soil at 3*7 ft. and water
table at 3»7 ft. after 2U hrs.
Mottled soil
table at 5.0
at 5*0 f^* water
ft. after 24 hrs.
CHARLES KROGKESS PROPERTY
ORONO, MINNESOTA
LOT 2
Percolation Results
Hole No.Material
P-1
P-2
Percolation Rate
Red Brn. Clayey Sand 7.1 Min./Inch
Brn. Clayey Sand 5*7 ”
The average percolation rate inutes per inch.
S.B. # 1
Depth(ft.)
0.0-3.0
3.0- U.O
4.0- 6.0
6.0-7.0
Mottled s
at 5.6 f
Bljpihk Sandy Loam
Brn. Clayey Sand
Brn. Clay Loan
Brown Clay Loam
1 at 5*0 ft. and water table
after 24 hrs.
s
0