HomeMy WebLinkAbout1986-04-23 Septic System Design ReportI
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S-P TESTING, INC.
951 KATYDID LANE
ST. MICHAEL. MN 55376
497-3566
STEVE SHIRMERS April 22, 1986
John Laurent
Lot 8, Block 2
French Creek
Orono, NN.
This system Is designed for a Type 1, five bedroom home and in accordance
with the Minnesota Pollution Control Agency standards WPC 40 and local
ordinances.
The soils on this site are typical of SCS soils mapped - AnB - Anoka loamy
fine sand. A seasonally high water table was located at 26", 30", 6 32",
(mottling). The bottom of each trench must be located at least 3* above
the seasonally high water table. Due to the high seasonally high water
table, a pressurized mound system will need to be installed. The bottom
of the rock bed must be located at least 3* above the seasonally high
water table.
The soils at a depth of 18" have a percolation rate averaging 15.3 min/inch
and are adequate for treating septic effluent.
A pumping chamber will need to be installed to lift the effluent to the
mound system.
The manifold and supply line pipe must have back drainage to the pumping
chamber. The distribution pipes shall have their ends capped. Be sure the
rock and sand fill material are clean. The sod layer below the entire
mounded area must be turned over, just break up the sod, be sure not to
over work.
The power supply and switches must be located outside the manhole and pumping chamber in a weather proof enclosure. A warning device mist be
installed with a light and sound device, this is in case of a pump failure.
(Mercury floats are a good method).
All neighboring wells are located more than 100* away from the proposed
treatment area.
Keep all heavy equipment off of the proposed treatment area before and
after construction as much as possible. The treatment area should be
marked off before construction.
With proper installation and maintanance, this system should have no problem
in treating septic effluent effectively.
It is recommended that the septic tanks be pumped every 2 years.
Soil and PorcoUition TobH
Septic Syitem De$ign Steven B. Schirmers
SBS/ds
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Location or Project
iioqs or bon Borings
John Laurent
Borings made bv S»P Testing. Inc. Steve Schlrmers _ Date 4*21-86^
Classlflctlon System: AASHO i OSDA-SCSJC_j Unified_ _ _t Other_
Auger used (check two): HandJ(» or Power, Plight, or Bucket X
r^-
i-
Depth# Boring number,
in
feet
0 -
1 -
2 -
3 -
4 -
5 -
6 -
7 -
8 -
7
Surface elevation 970,5
Topsoil dark brown
sandy loam
0 - 1*0"
Brown sandy loam
1* - 2*2"
2*8"-mottling
Dark brown clay loam
2*2" - 3>l/2*
Olive brown loamy sand
3-1/2* - 5*
^gfown 5- - 5'4-
Olive brown silty sandy loam
5*4" - 6*
Depth»*
in
feet
0 -
1 -
2 -
3 -
4 -
5 -
6 -
7 -
8 -
Boring number 8
Surface elevation 970.5
Topsoil dark brown
sandy loam
0-1*
Brown sandy loam
1* - 2-1/2 **mottlinq
Olive brown.sandy loam
2-1/2* - 5*4"
ouYfv ^4- - s-fl" mr I
OHSSdy 5’8- - 6‘ !?S§a"I
!
End of boring at 6 feet.feet.
Standing water table:
present at feet of depth#
End of boring at_ _ _^
Standing water table:
present at feet of depth#
hours Bfter boring.hours after boring.
Mot present in hole.Not present in hole.
Mottled soil:
Observed at_2Jja."feet of depth.
Not present in hole _ _ _ _ _ _•
Comments:
Mottled soil:
Observed at 7-1feet of depth.
Not present in hole .
Comments:
Logs of Soil Borings
John LaurentLocation or Project^ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Borings made by S«P.Resting. Inc. Steve Schirmera Date 4-21-86
Claasifiction Systems AASHO i USDA«SCS X i Unified i Other_ _
Auger used (check two)] Hand X . or Power, Flight, or Bucket X
Depth#
in
feet
0 -
1 -
2 -
3 -
4 -
5 -
6 •
I
7 •
8 -
Boring num^r.9
Surface elevation 969.0
Topsoil dark brown sandy
loam
O'- 1'2-
Brown sandy loam.
1*2- - 2'2--raottlina
Olive brown sandy clay loam
2*2- - 2*8-
Olive brown sandy
loam w/traces of silty
loam
2'8- - 6*
These soils are typical of
SCS soils mapped - AnB -
Anoka loamy fine sand
Depth#
in
feet
0 -
1 -
Boring number
Surface elevation
2 -
3 -
4 -
5 -
6 -
7 -
8 -
End of boring at 6 feet.
Standing water tables
present at_ _ _ _ feet of depth#
End of boring at feet.
Standing water tables
present at_ _ _ _ _ feet of depth#
hours after boring.
Not present in hole
hours after boring.
_ e Not present in hole
Mottled soils
Observed at_2A2JLfeet of depth,
Not present in hole
Comments s
Mottled soils
Observed at ____
Not present in hole.
Commentsi
feet of depth.
I'
PERCOLATION TEST DATA SHEET
® PncolMioa leilleadings made<«y Stieven D- Sghirin«ars
John Laurent_________Hokwinte.
4 — 7 ? —R fi
Ten hole loeatkNL
Depth of hole bom
7
M
a.m.
, Dale hole waa pccpaitd.4-21-86
18
Soil datofram left hole:
Depth, iochet
Jochet, PiMMjgrnflinlg _ _6 -------i«gh#«
SoilieKtuK
Q - 1R*
Method of fcntchingtidewall__Knife
Depth of yavel in bottom of hole , 2 infhrsWt HI MHHMI V« —lll^gi^D
IWafuthnurnf initial tVpiiiftf inrfi^ iwAi Knitnm
Methodiiiod 10maiMainat least t^ineiM»»«ifmi«r<igp»tiintiftiefnriinatatiniM« Automatic siphon
Time
Time
ioicfval,
mimttea
Measuicmeot.
inches
Drop in water
level, inches
PeieolatioB
me.
minutes per
inch
Remaiks
Water remaining : n test hole
3s01 *3:16 6 5/8 24.0 15 min
3:19 3:34 II n m m m
3:41 3:56 m n m m m
Peicolaiioonie >__________minutes per inch.
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PERCOLATION TEST DATA SHEET
ii.m.
PtercoUtion lest leadings made Ky Steven Schirmers 4-2^*B6 unii^ at
Tfcih^Lirmto^ .^r^y^T^ T^iir**ni;__________,Holewiinhcr a ■—. Dale hole was picpawl 4-21-86..-
Oepih of hole bottom.18 inches. Diameter of hole.6 Jnehes
Soil dau from Ml hole:
Depth, ioches
n - 12*
12- 18-
Soil lesuuc
Topsoil dark brown sandv loam
Brown sandy loam
Meihod of scraichidg sidewall-----
Depth of gnvel in bottom of hole.2
\
JnehestJcpiIlWI W HUIHNIIVI WWlfci. ■ - I
• 4*21»86 12pfff and hour of initial water ^‘i***^ , Depth of initial water filling ■ . —inches above hole bottom
Method used to mainlain at least 12 inches of water depth in hole for at least 4 hours siphon------
, Maximum water depth above hole bottom during test ^Jnehes
Time
Time
interval.Measuiemern.
inches
Drop in water
level, inches
Percolation
rate.
minutes per
inch
Remarks
2:50
3:04
preflll 6
3:21
3:19 N 1-3/4 8.6 15 min
3:43
3:36 «H n M
3:58 N M M M N
Peicolaiiooraie •__-----------minutes per inch.
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PERCOLATION TEST DATA SHEET
Steven B, Schirmers ^ 4-22«86 3;06
Test hole locaiion__John Laurent____________ Hole munbct 9 4»21-»B6
X8 ______ 6Depth of hole hoctom ,
Soil daU from left hole:
DqMh.iachet
0 - 14"
Jnchet. Oiameterof hole.jochct
14" - 18"
SoUieatur?
Topsoil dark brown sandy loam
Brown sandy loam
Method of iciaiehuig tidewalL ICni
Depth of gravel in boctoai of hole.2 Jnehei
Dale and hour of initial water fUling._A.*"21*A^, Depth of initial water filling___12___inches above hole boctom
Method used 10 maintain at least iiiachgtofiiiigritgpthinhftigfnri ieAtiahftu« Automatic siphon
Tune
Time
huetval,Measuiemem.
inehes
Drop in water
level, inches
Peicolatioo
rate,
minutes per
inch
Remarks
2;SQ prefill 6
3:06 '3:21 N 1-1/8 13.3 15 min
3:23 3:38 N M II H II
3:44 3:59 H n M ■M
l>
■s
Percolacioniaie ■__minutes per inch.
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S-P TESTING, INC,
II
951 KATYDID LANE
ST. MICHAEL, MN 55376
497 3566
!STEVE SHIRMERS
March 10, 1986
Ned Dayton
French Creek
Orono, NN
Lot 3^ Block 1
This site has been compacted from construction traffic from Lot 4, block
1. A mound system was proposed for this site. A soil boring was
completed in the proposed treatment area showing sandy soil after a
depth of 60". If the upper soils to a depth of 60" is removed, a
standard system may be istalled. I feel that the original soil is
too compacted to install a septic system.
Lot 1, Block 2
A soil boring was completed west of the 970 contour (top of hill located
on tree line) finding soil to be typical of the boring in site 1.
Mottling is present at 60". A standard system may be used with the
trenches 24" deep or less. A pumping chamber will need to be installed
to. lift the effluent to the treatment area. I see no problem moving
the system to this site.
/Lot 8, Block 2
A soil boring was completed east of site #1, finding soils typical of
the previous soil test. Hotting is present at 18" to 20". Be sure
the sand below the rock bed (mound) is adequate to keep a 3' separation
from the mottled layeV of soil, (seasonally high water table). I ^
see no problem mo^i^^the system to this site. ^77^^=^ L^
^ O’
;
Steven B. Schirmers
SBS/ds
Soil and Percolation Te$u
Septic SyMtem Detign
J
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SEPTIC SYSTEM INFORMATION
STREET ADDRESS _ _ _ _ _
LOT ^_ _ _ _BLOCK SUBDIVISION
MONTH AND YEAR TESTING DONE _ _ _ _ _ _ _ _ _ _
ITEMS ALREADY COMPLETED /o PenCC ^ ^iCV/J^S
NEED TO COMPLETE BEFORE ISSUING BUILDING PERMIT:
BORINGS_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
o
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PERC TESTS
SYSTEM DESIGN
SITE PLAN
OTHER
COMMENTS
DATE THIS SHEET FILED SS
SUBDIVISION FILE NO. Pi‘-/0
Bv m A^/A
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