HomeMy WebLinkAbout1987-11-05 Septic System SpecificationsS -P TES TING, INC.
951 KATYDID LANE
ST. MICHAEL. MN 55376
497.3566
STEVE SH IRMERS
November 5, 1987
Tom Betz
Lot 2 of lot 41
Auditor's Sub #203
Stubbs Bay Road
Orono, Henn. Co.,MN
This system is designed for a Type 1, four bedroom home and in accordance
with the Minnesota Pollution Control Aqency standards WPC 40 and local
ordinances.
The soil on this site ire typical of SCS soils mapped - KkC - Kilkenny loam.
A seasonally high water table was located 22", 24", 2611, 28 & 30", (mottling).
Due to the 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 5.3 min/inch
and are adequate for treating Geptic effluent.
A pumping chamber will need to be installed to lift the effluent to the
treatment area.
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
nit 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 must 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 and 50' away on this site.
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 maintenance, 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 Percolation Testi Steven B. Schirmers
Septic System Design
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L-13
CERTIFICATION / 00627' Logs of Soil Borings
Location or Project Lot 2 of lot 41, Auditor's Sub #203
Borings made by S ,P Testing, Inc. Steve Schirmers Date 11-3-87
Classifiction System: AASHO USDA -SCS X ; Unified s Other
Auger used (check two): Hand X , or Power , Flight , or Bucket X
Depth, Boring number 1 Depth, Boring number 2
in in
feet Surface elevation 964.6 feet Surface elevation 962.5
0 - i 1 0
Topsoil very dark
brown loam
1 - 0 - 112"
Very dark gray brown loam
2 -
2 -1/2' -mottling
192" - 2110"
3
Dark gray clay loam
4 -
2010" - 4'10"
Rusty gray silty loam
4'10" - 6'
6 -
7 -
8 -
End of boring at 6 feet.
Standing water table:
present at feet of depth,
hours -after boring.
Not present in hole X
Mottled soil:
Observed at 2-1/2'feet of depth.
Not present in hole
Comments:
I Topsoil very dark
1 _ brown loam
0 - 1'8"
2 _ Dark brown loam
2'4" -mottling
1'8" - 2'10"
3 _ Dark olive brown loam to
2'10" - 3'4" clay loa
Gray silty loam
4 -
3'4" - 414"
Olive brown loam
Ac
4'4" - 6'
6 -
7 -
8 -
End of boring at 6 _ feet.
Standing water table:
present at feet of depth,
hours after boring.
Not present in hole X
Mottled soil:
Observed at 294" feet of depth.
Not present in hole
Comments:
L-13
. CERTIFICATION # 1:0627 Logs of Soil Borings
• Location or Project Lot 2 of lot 41, Auditor's Sub #203
Borings made by S -P Testing, Inc. Steve Schirmers Date 11-3-87
Classifiction System: AASHO USDA -SCS X Unified ; Other
Auger used (check two): Hand X or Power Flight or Bucket X
Depth,
Boring number 3
Depth,
Boring number 4
in
in
feet
Surface elevationg6c
feet
Surface elevation 962.0
0 -
0 -
1 _
Topsoil very dark
brown loam
1 -
Topsoil very dark
brown loam
0 - 1'4"
0 - 1'10"
Dark brown loam
2 -
2
2'2" -mottling
_
2'2"-mottlinq Dark brown
1'10" - 2.'4" loam
114" - 214"
Dark brown clay loam
3 -
Dark gray brown clay loam
3 -
2'4" - 2'10"
-
Olive brown silty
clay loam
2'4" - 3110"
4 -
4 -
2'10" - 4'2"
Rusty gray silty loam
Rusty gray silty loam
5 -
5 -
4'2" - 5'
Rusty gray loam w/
traces of sand
6 -
3110„ _ 61
6 -
5' _ 61
7 -
7 -
8 -
8 -
End of boring at 6 feet.
Standing water table:
present at feet of depth,
hours -after boring.
Not present in hole X
Mottled soil:
" ' 2
Observed at 2feet of depth.
Not present in hole
Comments:
End of boring at 6 feet.
Standing water table:
present at feet of depth,
hours after boring.
Not present in hole X
Mottled soil:
Observed at 2'2" feet of depth.
Not present in hole
Comments:
L-13
CERTIFICATION # 00627 Logs of Soil Borings
Location or Project Lot,2 of lot 41, Auditor's Sub #1203
Borings made by S -P Testina,'Inc. Steve Schirmers Date 11-3-87
Classif4 `.ion System: AASHO USDA -SCS X ; Unified Other
Auger used (check two): Hand X or Power , Flight , or Be—:ket X
Depth, Boring number 5 Depth, Boring number 6
in in
feet Surface eieva•tion 964.5 feet Surface elevation 967.3
0 - I i0 -
4-1/2' - 6'
6 -
7 -
8 -
End of boring at 6 feet.
Standing water table:
present at feet of depth,
hours -after boring.
Not present in hole X
Mottled soil:
Observed at 21 feet of depth.
Not present in hole
Comments:
1
6 -
7 -
8 -
End of boring at 4 feet.
Standing water table:
present at feet of depth,
hours after boring.
Not present in hole X
Mottled soil:
Observed at 1'10" feet of depth.
Not present in hole
Comments:
Topsoil very dark brown
Topsoil dark brown loam
loam
1 -
0 - 1'
1 -
0 - it
Very dark gray brown loam
Brown loam
2' -mottling
1' - 1110"-mottlin
2 -
1' - 2'2"
2 -
Olive brown sandy loam
1'10" - 2-1/2'
Olive brown clay loam
3 -
2A2" - 3'2"
3 -
Rusty olive brown
loamy sand
Rusty gray silty clay loam
4 -
3'2" - 3110"
4 -
2-1/2' - 4'
Rusty gray silty loam
3'10" - 4-1/2'
HIT ROCK
5 -
Rusty olive brown loam
5 -
4-1/2' - 6'
6 -
7 -
8 -
End of boring at 6 feet.
Standing water table:
present at feet of depth,
hours -after boring.
Not present in hole X
Mottled soil:
Observed at 21 feet of depth.
Not present in hole
Comments:
1
6 -
7 -
8 -
End of boring at 4 feet.
Standing water table:
present at feet of depth,
hours after boring.
Not present in hole X
Mottled soil:
Observed at 1'10" feet of depth.
Not present in hole
Comments:
PERCOLATION TEST DATA SHEET
Percolation test readings nude by S - P T e s t i ng , Trig. on 11-4-87 .caning at 11:27 P, m,
Test hole locatioL o t 2 o f l o t 41 , A u d i t. o r' s Su Vo� number 2 , pate ho' was prepared 11-3-87
Depth of hole bottom 18 —inches, Diameter of hole._ 6 inches
Soil data from test hole:
Depth, inches
0 - 14"
14" - 18"
Method of scratching sidewal
Soil texture
Topsoil dark brown loam
Knife
Brown loam _
2
Depth of gravel in bottom of hole inches
11-3-87 &2-3 12 ;� above hole bottom
Dace and hour of initial water filling pth o lit wa►er filling
Met!wd used to maintain at ICL , 12 inches of water depth in hole for at least 4 hours Automatic siphon
6
Maximum water depth above hole hnttom during tear inches
Time
Time
interval,
minutes
Measurement,
inches
Drop in water
level, inches
Percolation
rate.
minutes per
inch
Remarks
11:15
prefill
6
11:27
11:42
3
5.0
15 min
11:48
12:03
12:12
12:27
Percolation nate - 5.0 - n+inutes per itch.
-.
PERCOLATION TEST DATA SHEET
Percolation test readings made by S—P Testing, Inc. 11-4-87 matting at 11:28
Lot2oflot41,Auditor's Sub#203 3 �� 11-3-87
Test hole location , Hole number , Date hole was prepared
Depth of hole bottom 18 inches, Diameter of hole 6 inches
Soil data from test hole:
Depth, inches
Soil texture
0 — 14" Topsoil dark brown loam
14" — 18" Brown loam
Knife
Method of scratching sidewalL
2
Depth of gravel in bottom of hole inches
11-3-87 12: 3C L2
Date and hour of initial water filling , Depth of initial water filling inches above hole bottom
Method used to maintain at least 12 inches of water depth in hole forat least 4 hours Automatic siphon
, Maximum water depth above hole bottom during tear 6 inches
Time
Time
interval,
minutes
Measurement,
inches
Drop in water
level, inches
Percolation
rate.
minutes per
inch
Remarks
11:15
prefill
6
11:28
11:43
2-5/16
6.5
15 min
11:49
12:04
2-1/4
6.7
"
12:11
12:26
2-1/8
7.1
"
Percolation rate = 6 . 8 minutes per inch.
PERCOLATION TEST DATA SWEET
estin
Percolation test readings made by S -P Tc;, Inc. 11-4-87 11:29 `gym
_ on starting at_ p.m.
I�.w�
Test hole location Lot 2 o f lot 41 , Audi = j r ' s SLMC?
ber 4 ,Date hole was prepared 11 - 3 - 8 7
Depth of hole bottom 18 inches, Diameter of hole 6 finches '
Soil data from test hole:
Depth. inches
0 - 18"
Knife
Method of scratching sidewall .
Soil texture
Topsoil dark brown loam
Depth of gravel in bottom of hole_ 2 inches
11-3-87 12:30p.m. 12
Date and hour of initial water filling , Depth of initial water filling inches above hole bottom
Method used to maintain at least 12 inches of water depth in hole for at lent 4 hours Automatic siphon
, Maximum water depth above hole bottom during test 6 inches
Time
Time
interval,
minutes
Measurement,
inches
Drop in water
level, inches
Pcrcolation
rate.
minutes per
inch
Remarks
11:15
prefill
6
--
11:29
11:44
3-1/4
4.6
15 min
11 5 0
12 0 5
"
of
of
rr n
12:10
12:25
Percolation rate - 4 . 6 minutes per inch.
PERCOLATION TEST DATA SHEET
S—P Testing, .m.
Prtrolation test readings made by 9 . Inc.Inc . n, 11- 4 - 8 7 u.ning at 11:3 0 p m
Lot2oflot41,Auditor's Sub#203 5 11-3-87
Test hole locatu+n , Hole number , Date hok was prcpa
Depth of bole bottoR► 18 inches, Diameter of bole 6 inches
Soil data from test hole:
Depth, inches
0 — 18"
Soil texture
Topsoil very dark brc•x-n loam
Method of scratching sidewalt Knife
2
Depth of gravel in bottom of hole inches
11-3-87 12:30p.m. 12
Date and hour of initial water filline , Depth of initial water filling inches above hole bottom
Method used to maintain at kart 12 inches of water depth in hole for at kart 4 hours Automatic siphon
, Maximum water depth above hole bottom during test 6 anches
Time
Time
interval,
minutes
Measurement.
inches
Drop in water
level. inches
Percolation
rate.
minutes per
inch
Remarks
11:15
prefill
6
11:30
11:45
2
7.5
15 min
11:51
12:06
11
12:09
12:24
If
Percolation rate f- 7.5 minutes per inch.
of
0
PERCOLATION TEST DATA SHEET
Percolation test readings made by S — f' Testing, Inc. 11-4-87 tsirting ■r 11 : 31
Lot2oflot41,Auditor's Sub #203 6F`"' 11-3-87
Test hole location , Hole number , Date hole was preparrA
i
Depth of hole bottom.—inches, Diameter of hole 6 inches
Soil data from test hole:
Depth, inches
0 — 8"
8" — 18"
Soil texture
Topsoil dark brown loam
Brown loam
Knife
Method of scratching sidewall
2
Depth of gravel in bottom of hole inches
11-3-87 12:30p.m. 12
Date and hour of initial water filling , Depth of initial water filling nchcs above hou n
Method used to maintain at least 12 inches of water depth in hole for at least 4 hours Automatic s i ph o :
6
Maximum water depth above holo: bottor.i during test _ inches
Time
Time
interval,
minutes
Measurement,
inches
Percolation
i Drop in water rate.
i level, inches minutes per
inch
Remarks
11:15
pre fi11
6
_
11:31
11:46
to
4-3/8
3.4
15 min
11:52
12:07
to
4-1/8
3.6
to "
12:08
12:23
"
4
3.8
It to
I
Percolation rate 3.6
�+inutes per inch.
PERFORATO
LATERALS
7
SANDY LOAM SOIL
lo,
LAYER OF STRAW OP
MARSH HAY COVERED-%, /f,�''.�"�`
r
WITH RED ROSIN PAPER
I/ OR 2"
PIPE NOM PUMP
DIVERSION FOR
NOTES SURFACE WATER
To" .0
CLAN WOCK
A SITE AS FOSSWE FOR THE MOUND
To P SOIL— 5L,L(' Ar, IJ_VEA
2 =Ex -..HOE RAAQR TQ'TK
U9NG W M04STURE
THIS 0-4-Y IF THE
jw
TWSt;WTa Do
OoNnNy 6 LESS THAN THE PLASTIC LIMIT llgIL TlSEW,:SEF IT CA" BE AOLLLD
D
INTO AN 1/, INCH WSW) DO ANG
AN' K61MOU'
ME CARE TO PVL T CO%O*,CTK'W
'L awsmx
=V' ON ' THE SOIL IS
11 OF 4 CLAI 1=31J00-1 00 .01 USE W
PON EOUIPMENT AND Do NOT comSTPLICT TI -f MOUND WHEN
IN A PLASTIC CONDITION
ALK -TYPE EQUIPMENT FOR CONSTRUCTING THE MOUND So AS NOT
THE ORIGIINAL SOIL
L SOIL HAolmG A
4 THERE MUST SE T, .2,W XsinKel-�� STER
'4X o/ TION RATL 40 Sn.$tSfm NO 11
MINUTES PER II' l.. AYER OF CLEAN SAND
gEFW PLACING THE
5 THE 12 INC,_ LAYER OF CREWSAM IS PART OF THE MPUND CoNsTwtrTloh SAND
IF 95 THE 'FRuiT .WR TEST FOR CONCRETE SOO
1 T CAN W
IS CONSIDERED CLEAN
AMC) THE TOP OF THE R" BED MUST BE
S 6 THE P Of THE CLEAN SAM LAYER
LOpE CON, RUCTE
CLEAN r,�f A' D LEVEL I'NCH DIAMETER SPACED 40 INCH
I DISTRIBUTION PIPES ARE 1�f THE ROCU BED PIPES HAVE
ES ON CENTER
SOD36
ANG CONNECTED TO A MANIPOLD IN THE CENTER SAND FILL PER 0 1�" EVERY 36 INCHES AND POINT -NC, D0*NWARD
CL 8 THE PIPE
XINACZEW 1��T eURM INSIDE
SROK�rAYER NINE INCHES OF ROCK hR PLACED U"rjER THE PERFORATED LATERALS AND 2
8 FOR A *.L ROCK DEPTH OF' Q INCHES 'N
N INCHES AWA TRA WHICH 6 -HE
9 AppED 6 INCHES AT THE SEAM' ,
Up THE NOCX IS FIRST COVERED WITH A ; LAYER OF L HAY OR 5
CDVEqED WITH A LAYER OF RED ROS N PAPER
NATu 0 AT LEAST 6 Wk*5 Or LOAMY SAND SHOULD BE Pt 1%fl-C' Ov"' rHE TOO OF Tl r
SARFiIiERRAL RDCK SED OF TOP SOIL SHOULD BE PLACED Ok4P THE ENTIRE MOUND SO
LII A 6 -INCH LAYER
AYETHAT A GRASS COVER CAN BE ESTABUS"M
12 CROWN THE SOIL COVER AT LEAP 6 INCHES IN THE CENTER OF THE MCILINC
ABOVE TIE ROCK LAYER So THAT HEAWY RAIN WILL " OFF
13 `IDE SLOPES Of THE DIKES SHOULD BE NO STEEPER THAN 4 1 ON CLAY SOILS
ANC, 3 1 ON SANDY SOILS
HI AgCAL MM fia. gEpemCW THIE AMIGIMUT OF DAILY
DwAodwwa
• sf f
SHOULD K No MARE THE TABLE
os MAximUM EFFLUENT D04
,X PER PUMP CYCLE
VALUES
16 MINIMUM PUMPING RATE IS SHOWN It TAB" PUMPING, HEAD MUST K
tMOUAII TO K EBF ,,ATION DIFFERENCE. FRICTION LOSS PLUS 5 FEET
on PERFORATED LA*E A►
4 INCHES STRAW OR MARSH
HAY AND LAYER OF RED
ROSIN PAPER -
GRASS COVER -�
SAND FILL \
MAXIMUM SLOPE
4 TO
SANDY LOAM SOIL
r- PERFORATED LATERAL
6 INCHES
TOPSOIL
4
� TOP501L'1- - ------ r �� % SLOPE
SUBSOIL PLOWED OR 777LEAN ROCK
DfSKED SURFACE 3/4 TO 2'/2 INCHES
CROSS SECTION A - A
- PIPE FROM
PUMPING CHAMBER
�t � 'I 1� \7
w
0 I
t � III
t t ,
PERFORATED
LATERALS ;
t ,
BED :AREA
w
t
I ,
m-
' _ ' =
Z
20 1p i p 20
INCHES'I JINCHES
DIKE - -- 10 FEET- DIKE
MAX.
TOTAL WIDTH --
PLAN VIEW
i
LAYOUT OF PERFORATED PIPE LATERALS FOR
PRESSURE DISTRIBUTION IN MOUND
11
PERFORATED PLASTIC PIPED /101a- )
PERFORATIONS SPACED 30" OR 36"
END S t CEN ®EPERFQ!AT ION 6
EW OR
PERFORATIONS ON BOTTOM OF
PLASTIC PIPE
In
END CAP
flArloN SPACIN'
P fR`,
MANIFOLD
PIPE Votim.
:asPIp� FROM
PUMPING CHAMBER
TEE TO TEE LATERAL—MANIFOLD CONSTRUCTION
411 It- -4f Gross Col
Loamy Sand 8ackfiI
Tee J
Reducer Manifold
� C . < ,Tee
12 - Inch Layer of : r
Clean Sand
Hay or Straw Covered
by Layer of Red Rosin
Paper (or nylon fabric)
Perforation in Cap Near
Crown of Pipe
Perforations at Latera
Invert
Rock ., Layer
PIGGY •ACK PLUG IN WEATHER
PROOF ENCLOSURE R LOCATE
ALARM WINE
FROSTPROOFfNV THE
DOW Box
IN /OUSE KSfMENT
MANHOLE COVER SECURED
TO PREVENT UNAUTHORIZED
DISCH.+RGE PIPE
12' SOIL COV[R
POWER SUPPLY
ENTRY
PLACE A ROCK ENVELOPE
14- tl��dA o=r".
POWER Cd10
24'MANHOLE
AROUND DISCHARGE PIPE
5/4 Vz
FROM PUM
�E
T pwq
TEO 0
-
ROCK SHOULD BF TO 2
INCHES IN DIAMETER, WITH
r-
3MIN. FROM BOTTOM
��
WATER TABLE OR Cly
- UNION OTHER
NO SAND COVER WITH A 2
LAYER
_
� ALARM FLOAT
DI
FIITIN', DISCONNECT
THICK OF
R ON SEHORA7E
ELECTRICAL CIRCUIT
INCH SHEET
EXPANDED POLYSTYRENE
RESERVE CAPACITY
WHEREVER POSSIBLE MAIN -
AFTER ALARM SOLIDS
—TREATMENT
THIN A GRASS COVER OVER
SOIL TREATMENT
AREAS FOR TYPE I MOME56
t�
AREA
TOP OF TRENCH AND ALLOW
-
_ START LEv_E� �._ �_ _ _ �� wEEPHOLE FOR
SNOW TO REMAIN IN PLACE
REQUIRED SOIL TREATMENT AREA
3-]
-' CHECK VALVE MAT
CHECIIAAINVALVE
E
WHEN SNOW COVER IS LIGHT,
IN SQUARE FEET PER BEDROOM
_ kEyEL 9_
BE INSTALLED IF
PLACE A 6 INCH HAY OR
PERCOLATION
__SMUT79U _
PIPE TO TREATMEnr�
AREA 15 FRC`.T
STRAW LAYER ON GROUND
RATE IN
TRENCHES
11•- IB• MINIMUM DEPTH
PROOF
ABOVE PIPE
NICU TES PER
O
DE QF IIqq���� r
SEEPAGE NTH
�
_ - ----- —
BEDS DISTRIBUTION PIPE. NrC►ES
E CAPACITY
75 GALLONS
6 12 is 24
BACKFILL --
_—
EXPANDED -
FASTER
PUMPING RATE SHOULD NOT
EXCEED DROP 80X
POLYSTYRENE -6,
THAN 01�
_ _ _
OUTFLOW CAPACITY OR 45 GALLONS
PER MINUTE
DISCHARGE s'
0 1 TO 5
125 125 100 BS 75
(2700 GALLONS PER HOUR)
PIPE — e'
PUMP DISCHARGE HEAD MUST
BE ADEQUATE TO
ROCK 2'12 2'/z DIA
6 TO 15
I90 190 150 125 115
OVERCOME ELEVATION DIFFERENCE BETWEEN THE
16 TO 30
250 250 200 165 150
PUMP AND DISTRIBUTION BOX
PLUS FRICTION LOSS
IN D'SCHARGE PIPE
31 TO 45
300 300 24C 200 ISO
46 TO 60
330 330 265 220 200
LIQUID CAPACITIES OF VERTICAL CIRCULAR TANKS
SLOWER
--
THAN 60t�
INSIDE DIAMETER OF TANK
GALLONS PER FOOT
IN FEET
OF DEPTH
o SEWAGE FLOW - 150 GPD PER BEDROOM
TO DETERMINE THE LIQUID
t) �PEOAL DESIGN SHOULD BE USED TO PROVIDE ADEOUATE
1 5
130
TREATMENT ANC
ABSORPTION OF EFFLUENT
20
235
CAPACITY OF ANY TANK. FIRST
DETERMINE THE SURFACE AREA
2 5
37 0
OF THE LIQUID MULTIPLY
30
530
THIS VALUE BY 75 (GALLONS
4 O
94 0
PER CUBIC FOOT) DETER-
RECOMMENDED AMOUNT O� EFFLUENT TO PUMP
PER CYCLE IS
25 PERCENT OF DAILY SEWAGE FLOW.
5 0
147 O
MINE THE TANK LIQUID
MINIMUM AMOUNT OF EFFLUENT TO PUMP PER
6 0
21 3.0
CAIN GALLONS PER
CYCLE IS 75
GALLONS
F
FOOOTT OOF DEPTH
FOR EXAMPLE, A CIRCULAR TANK WITH AN INSIDE
DIAMETER OF 4 FEET HAS 94 GALLONS OF LIQUID
CAPACITY PER FOOT OF DEPTH
TO PUMP 200 GALLONS PER CYCLE, THE PUMP
CONTROL SWITCHES WOULD NEED TO BE SET 21
(200/44) FEET APART
UN!VERSITY O► ""'IdEW"a
E><TENSON_A_GRICUL_TUR_A_L CNGI-AERING
101
PUMPING STATION _I.
MET
COVER
i
CONCRETE --A `
MANHOLE
RING
METHODS OF SECURING M 0 �IHOLE COVER TO PREVENT
•UNAUTHOk,�ED ENTRY
INLET
UI
ii
PENCIL
MARKS
or ly
i •
s OUTLET
-- • _ _ SCUM CLEAR SPACE -- -_ r CLEAN OUT TANK WHEN
*0 IS 3' OR LESS OR
'E' IS 120 OR LESS
i BLACK COLOR
SLUDGE DISTINGUSHES SLUDGE
LAYER FROM LIQUID
MEASURE SCUM AND SLUDGE ACCUMULATIONS
IN THE SEPTIC TANK
Ir,