HomeMy WebLinkAbout1979-11-21 Percolation Test$A POP
915 Indi.n Mound
w.yrRte M,nnesotu 55391 +"• •.
16�?1473.4224
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November 21, 1979
t
Mr. John Whitman �
1540 6th Avenue North r
Long Lake, MN 55356 j
Ref Percolation Test
a
Dear Mr. Whitman, �+
' Percolation tests and Soilborings were performed on November
and 20, 1979. The results of the percolation tests are shown in
Table 1. The locations of percolation test holes and soil borings
'.._ are shown in figure I. ;
Because of the slow percolation rates of the two southerly test
106 7 per inch, a Mound System is re- !
sites, and 87.3 minutes p.
quired for both sites by the City of Orono. Thft two northerly
. test sites have3cistaanleveragelofijn�reteThehCityer, the of Oronoepth
w 11
to the water table
require A shallow trench system for both of these sites.
If you have any questions please call me.
Sincerely,
EUGENE A. NICKUK AND ASSOCIATES
Xngineers for the District
x a C
Rod Cole
PC11f
Enclosure
• .,� S .ita., N
Boil Broings North Lc.t
•r
Boil Boring 11
0 - 0.67'
0.67' - 2.0 '
2.0 ' - 2.5 '
2.5 '
�.: 2.5 ' - 4.0 '
4.5 '
Soil Borinq B
0 - 0.5'
0.5' - 1.0'
1.0' - 2.0'
2.0' - 4.5'
4.5'
Soil Borinq C'
0
- 0. 5'
0.5'
- 1.5'
1.5'
- 2.5'
2.5'
- 3.0'
3.0'
- 3.5'
3.5'
- 4.0'
4.0'
Topsoil
Sandy Clay
Clayey Sand
Slight Mottling then Dissappears
Clayey Sand
Clayey Sand Grading to Sandy Clay
Mottling
Topsoil
Sandy Loam
Sandy Clay
Sandy Clay Grading to Clayey Sand
Mottling
Top So i 1
Sandy Loam
Sandy Clay
Clayey Sand
Sandy Clay
Clayey Sand
Mottling
WAX
• • •
South Lot
Hole Pe_rc rater min/inch
i-
P2 80.0
p3 120.0
P4 60.0
PS 120.0
Pr 240.0
Primary Sits (Holes 1, 2, S, 6) - 106.7 minutes/inch
Secondary Site (Holes 2, 3, 4, S) - 87.3 minutes/inch
Average depth to water table a 3.5'
North Lot
Hole
Perc rate min/inch
P1
80.0
P2
60.0
P3
80.0
P4
26.7
PS
40.0
P6
80.0
Primary Site (Holes 2, 3, 4, 5) H 43.6 Min/inch
Secondary Site (Holes 1, 2, 1;, 6) 30.0 Min/inch
Average depth to water table - 4.2'
•
$oil borings South Lot
soli Bolin A
0 ' -
0. S'
0.5' -
4.5'
4.51
r ..
Soil Boring b
OF
0 ' -
0. S'
0.51 -
1.0'
s
. 0' -
2.5'
Soil Boring C
0
- 0.67'
0.67'
- 1.5'
1.5'
- 3.0'
3.51
Brown Topsoil
Red -Brown Clay
Mottling
Brown Topsoil
Tan Clay
Iced -Brown Clay
Mottling
Drown Topsoil
Silty Clay
Sandy Clay (grading to sand)
Mottling
0
r wit ., .v +•,S ` f ..y � �4.'„ 1
1 '•
1 O'9 O • •rd �,�
A AlQ
121.4
t �
E.A. HICKOK i ASSOCIATES
`'M'' .►-r'r_-�."'"!i�.i ✓�i�:' `r .�:- HYDROLOGISTS-
ISO
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