HomeMy WebLinkAbout1987-11-03 Septic System DesignS -P TESTING, INC.
951 KATYDID LANE
ST. MICHAEL, MN 55378
497.3588
STEVE SHIRMERS
November'3, 1487
Tom Betz
Lot 1 of Lot 41 Auditor's Sub #203
Stubbs Bay load
Orono, Henn. Co., MN
This system is designed for a Type 1, four bedroom nome 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 - KkC - Kilkenny loam.
A seasonally high water table was located at. 26", 28", 30", 6 42", (mottl-
ing). 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 13.6 min/inch
and are adequate for treating septic 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
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 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 75' 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 Taus Steven X Schirmers SBS/ds Sepik Systems Design
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L-13
CERTIFICATION i 00627 Logs of Soil Boring:.
Location or Project Lot 1 of Lot 41, Auditor's Sub #203, Stubbs Bay Rd.
Bcrings made by S -P Testing, Inc. Steve Schirmers Date 10-28-87
Classifiction System: AASHO USDA -SCS X Unified ; Other
Auger used (check two): Hand X or Power Flight , or Bucket X
Depth,
Boring number_ 1
Depth,
Boring number 2
in
feet
Surface elevation 978'7
in
feet
Surface elevation 979'7
0 -
0 -
Topsoil dark brown loam
Topsoil dark brown loam
0 - 112"
0 - 1-1/2'
_
Brown loam
Brown loam
2 -
2 -
1-112' _ /'^""l
1'2" - 214"
r-mottling
Brown 2'4" - 2'8" ��aiolam
Brown clay loam
-
Gray brown loam
3
3
3 -1/2' -mottling
2'8" - 318"
214" - 318"
4 -
4 _
Olive brown clay loam
,_,rey brown sandy loam
3'8" - 4110"
olive gray silty loa:.,
6 _
3'8" - 6'
6 _
4110" 6'
_
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:
Observed at 2'4,. . feet of depth.
Not present in hole —
Comr:<�nts :
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 3-1/2' feet of depth.
Not present in hoie
Comments:
r
L-13
• CI�RTIFICATION / 00627 Logs of Soil Borings
• Location or Project Lot l of Lot 41, Auditor's Sub#203, Stubbs Bay Rd.
Eorings made by S -P Testing, Inc. Steve Schirmers Date 10-28-87
Classifiction System: AASHO USDA -SCS X Unified i 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 elevation 975.9 feet Surface elevation 974.5
0 - F 1 0 -
3 -
4 -
AW
6 -
`_
8 -
Topsoil dark brown loam
0 - 1' 2" 1 1 1 -
Brown loam
L'2" - 2' 2"-mottliric
Olive bro%-i clay loan,
20211 - 31211
Olive gray silty loam
3'2" - 3'10"
Olive gray loam
3'10" - 6'
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 212" feet of depth.
Not present in hole
Comments:
Topsoil dark brown loam
0 - 1'8" •
Dark gray brown loam
2 - 118" - 212"-mett11ni
Olive brown clay loam
3 - '2" - 3'4"
4 -
5 -
6 -
7 -
8 -
Olive brown loam
3'4" - 4'10"
Olive brown loam w/traces of
4'10" - 5-1/2' sand
HIT ROCK
End of boring at 5-1/2' 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
Cs�.TiPiCATiON i 00627' Logs of Soil boringb
Location or Project Lot 1 of Lot 41, Auditor's Sub 4203,.9tubbs Bay Rd.
Borings made by S -p Testing, Inc. Steve Schirm�-rs Date 10-28-87
Classifiction System: AASHO USDA -SCS X Unified J OthEA
Auger used (check two): Hand X or Power , Flight , or Bucket X
Depth,
Boring number 1 _
Depth,
Boring number 2
in
feet
Surface elevation 97+'7
in
feet
Surface elevation 979'7
0 -
0 -
Topsoii dark brown loam
Topsoil dark brown loam
1 -
1 -
0 - 11211
Brown loam
Brown loam
2
2
1-1/2' - 2'4" -mottling
112" - 2'4" i
Brown 2'4" - 2,8„ "layol2am
Brown clay loam
-
Gray brown loam
3 -
3
3 -1/2' -mottling
2 1 811 _ 3' 811
�J
21411- 3' 8"
olive brown clay loam
4 _
4 _
Gray brown sandy loam
3'8" - 4010"
5 -
5 -
olive gray silty loam
6 -
318" _ 6'
6 -
4'10" _ 6'
7 -
7 -
8 -
8 -
J
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 2'4" feet of 1.
Not present in hole__
Comments:
End of boring at 6 feet.
Standing water table:
present at feet of depth,
_ hours after boring.
..ot present in hole X
Mottl�•d soil:
Observed at 3-1/2' feet of depth.
Not present in hole
Comments:
CERTIFICATION # 00627 Logs of Soil Borings
Location ur Project Lot 1 of Lot 41, Auditor's Sub #203, Stubbs Bay Rd.
Borings made by S -P Testing, Inc. Steve Schirmers Date 10-28-87
Classifiction System: AASHO USDA -SCS X ; Unified ; Other
Auger used (check two): Hand_X , or Power , Flight , u;:. cket X
Depth, Boring number_ 5 Depth, Boring numbcVr 6
in in
feet Surface elevation 970.0 feet Surface elevAtion 970'2
-
Topsoil dark brown loam
Topsoil very dark
0 - 8"
1 brown loam 1 - Brown loam
0 - 2'2"
2 - 2 - 8" - 2'
2 -1/2' -mottling 2'4" -mottling
Dark gray brown loam
Ol:ve brown loam
Dark gray brown clay loam
4 - 4 - 2' - 412"
----312'0 _ 4'8"
Rusty olive brown loam
5 _ Gray silty clay loam 5 _
6 - --- 48 - 6 - 6 - — - --- 402 -- 5'10"
7 - 7 -
8
Fn. of boring at 6' feet.
Standing water table:
present at feet of depth,
hclir,s -after boring.
Not present in hole Y
Mottled soil:
Observed at 2-1/1'feet of depth.
Not present in hole
Comments:
End of boring at 5'20" feet.
Standing water table:
present at feet of depth,
hours after boring.
Not present in hole X
Mottle, soil:
Observed at 2 t .» feet of dF r :h.
Not present in hole
Comments:
r—
PERCOLATION TEST DATA SHEET
Percolation test readings made by � — P T s i nq . Inc . �,.� 10 — 2 9 — 8 7 starving at 8 :15 ;Mm-
iron
Test hole location Lo t l , o f Lo t 4 l ,Auditor ' s S ��it* dlh�fr 1 , Date hole was pn paw 10-28-87.
Depth of hole bottoms+ 18 inches, Diameter of hole 6 inches
Soil data from test hole:
Depth, inches Soil texture
0 — 18" Topsoil dark brown loam
Method of scratching sidewalt Knife
2
Depth of gravel in bottom of hole inches
Date and hour of initial water filling 10-28-87 .��
ueptn tm ul water filling inches above hole bottom
Method used to maintain at least 12 inches of watt • • lr;,th in hole for at least 4 hours _ - Automatic siphon
Maximun: water depth above hole bottom during test 6 incbes ~
Percolation
Time interval, Measurement, Drop in water ate, Remarks
minutes inclies level, inches m!1.40 pe.
LA
8:05 prefil1 6
8:15 8:4= " 4 -3/8 6.5 3V m:l.aa
8:57 9 27 4-1/8 -7.3 « «
9 28 9.58 3-7/8
7. 3
PaooWion rare
per inch.
PERCOLATION TEST DATA SHEET
S -P Testing, inc. 10-29-87 8:16 A.M.
Percolation test readings made by on v■rting at
a",#
Test hole locati�t+ Lo t 1 o f L o t4,Auditor ' s S oVn%4iber 2 , Due hole was pre10-28-87
Depth of hole bon 18 inches, Diameter of hole 6 �ncha
Soil data from test hole:
Depth, inches
0 - 14"
14" - 18"
Brown loam
Soil texture
Method of scratching sidewall Knife
2
Depth of gravel in bottom of hole inches
Dau and hour of initial water filling—
10-28-87 De t o?9111 � water filiing 12 inches above hole bottom
Method used to maintain at least 12 inches of water depth in hole for at leant 4 hrw LAu t oma t ie siphon
Maximum water depth above hole bottom during test 6 inches •
Time
Time
interval,
minutes
Measurement.
inches
Drop in wwa
level, inches
Percolation
rate,
minutes per
inch
Remarks
8:05
prefil1
6
8:16
8:46
3
10.0
30 min
8:56
9:26
"
2-7/8
10.4
M M
9:29
9:59
"
Percolation rate - 10. 3 rain Per inch.
PERCOLATION TF—ST DATA SHEET
Percolation test madin smadeb S -P Testing. Inc. on 10-2�-R7 a.m.
B Y carting at 8 • 1 p. m.
Test holelocati�LotlofLot4l,Auditor's Sup&203 ' 10-28-87
number Date hole was prepared
Depth of hole bottom 18 inches, Diameter of hole 6 inches
,.t from test hole:
Death, inches Soil texture
_ 0 - 14" Topsoil Clark brown loan
14" - 18" Brown loam
Method of scratching stdewall Knife
2
Depth of gravel to bottom of hole inches
10-28-87 9:0081, 12
Date and hour of initial water filling , DePth dTtmltal water f.11,n , inches above hole bottom —
Method used to maintain at least 12 inches of water depth in hole for at least 4 hours_ Automatic siphon
6
Maximum water depth above hole bottom during test inches
Time
Time
interval,
minutes
Measuremeni,
inches
Drop in water
level, inches
Percolation
rate,
minutes per
inch
Remarks
8:05
pre fi11
6
8:17
8:47
1-3/8
X1.8
30 min
8:55
9:25
9:30
10:00
lllsookaw ma - 21- e' mien pet iacb.
PERCOLATION TEST DATA SHEET
Percolation test readings made by S - P Testing, Inc .o„ 10-29-87 „dng d 6:18 a:�11:
ut pp Awl
Lot 1 o f
Test hole locati Lo t 41 , A v c] i t o r ' s il%le number. 4 , Date hole was p mpa� 10-28-87
Depth of hole botto18 inches, Diameter of hole -----6 inches
Soil data from test hole:
Depth, inches
Soil texture
0 - 18" Topsoil dark brown loam
Method of scratching sidewall K n i f e
2
Depth of gravel in bottom of hole inches
10-28-87 0 .In. 12
Date and hour of initial water filling , Dep o�initial water filling �nchea above hole bottom
Method used to maintain at least 12 inches of water depth in hole for at least a hour& Automatic s i p h o n
Maximum water depth above hole bottom during test 6 inches
Time
Time
interval,
minutes
Measurement,
inches
Dmp in water
level, inches
Percolation
rate,
minutes per
inch
Remarks
8:05
I prefi11
6
8:18
8:48
3-7/16
8.7
i30 min
8:54
9:24
9:31
10:01
I
Percolation rate - 8. 7 minutes per awh.
PERCOLATION TEST DATA SHEET
—I' Testing, Inc. 10-29-87 8:19 a.m.
Percolation tri readings made by 9 on starting at_ p.m. .
otlofLot4l,Auditor's Sub 1203 r,aw`i 10-28-87
Test hole h>caaor>__ , Hole number. Date hole was prepa+�
Depth of hole bottum. 18 inches, Diameter of hoe 6 inches
Soil data from first hole:
Depth. inche:
Soil texture
0 — 18" '%soil very dark brown loarr.
Method of scratching sidcwall Knife
2
Depth of gravel in bottom of hole nehes
10-28-87 4:00p.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 least 4 hours Automatic siphon _
Maximum water depth above hole bottom dunng test 6 inches
Time
TimePercolation
interval,
minutes
Measurement, Drop in water
inches ; level, inches
-- -- —�
rate.
minutes per
inch
Remarks
8:05
prefill
8:19
8:49
4-13/16
6.2
30 min
8:53
9:23
" — 4-5/8
—�
6.5
"
9:32
10:02
4-3/8
6.9
"
t7.5
f wilati011 raft - ...i Hms PW inch.
PERCOLATION TEST DATA SHEET
, Inc.g
Percolation test readings made by S -P Testing, on 10-29-8-7 v,,,ing at 8 : 2 0 p m.
'A a.
Test hole locationLotlofLot4l,Auditor's St #203& 6 10-28-87
ole num r , Date hole was prepared
Depth of hole bottom 18 inches, Diameter of hole6 inches
Soil data from test hole:
Depth, inches Soil texture
0 - 8" Topsoil dark brown loam _
8" - 18" Brown loam
Methyl of scratching sidewall K n i f e —
2
Depth of gravel in bottom of holy inches
10-28-87 4: pi) E,.In. 12
j Date and hour of initial water filling , Depth of initial water filling inches above hole bottom
iAutomatic siphon
Method used to maintain at least I .. inches of water depth in hole for at least 4 hours
i
Maximum water depth above hole bottom during test 6 _inches
Time
Time
interval,
minutes
Measurement,
inches
Drop in water
level, inches
Percolation
rate,
minutes per
inch
Remarks
Water reinaininq
in
test hole
8:20
8:50
6
1-1/8
26.7
30 min
8: 5 2
9: 2 2
"
'
9:33
10:03
"
'
26.7
molal! - minutes per inch.
-PERFORATED
LATERALS
SANDY LOAM SOIL-
LAYER OF STRAW OR
MARSH HAY COVERED
WITH RED ROSIN PAPER
PIPE /FROM 2PUMP-21
I ?,
CLAN FLOCK �,/ ����•.' ��� DIVERSION FOR
Y ,�y�.+,�►►/�� /� J % SURFACE WATER
6" TOP SOIL, 1 SELECT a5 LEVEL a 9TE AS aiaLr. von THEMo:�►A
- 7 j 2 REMDVE EXESS VEGETATION Rfl». DISK OR tbNG BACKHOE RAKER TEET
K
�•'-, gOUC ,1! THE SwgfF SDA 6 INCHES DEEP Do THIS ONLY IF THE MNST(1RE
mPITENT 5 LES-5 THAN THE PLASTIC UMIT (SOIL 15 PLASTIC IF IT CAN BE RDI-lfn
HTO AN �j NCH WIRE) 00 NOT REMpVE MRI D< THE SURFACE SOIL MOUND
,R-'� , pfgFT)i1MAPKE ON C T 5Q1�� DE �CQQNNS ME CAR£�pT�O�PSRE[ NT__COMPAT;a
�•/ 4'i' J% ,
AND RIDDLING CIFrE [LAY oaaNSRtJC' �W►E TNEIti[+� CO►+51R1K
ION EDLIPMEN. AMC DO NOT MOUND N CLAY SOIL IS
N A
PLASTIC CDIDI TION
�5[ ONIY TRAOC TYPE EThIIP+aOIT FOR COdTFtUCTING THE nFDu1a0 SO AS F1()T
1,1y,.'�o• �'" '-�'t J �' �N , �• (i /�.'% TO ODwWACT THE ORIGINAL SOIL p�RC�p
I =" "'fir—.,'�•��'- �~ _.� � .: �' ~MAk.j A THERE WIST BE
RATE NO SLT T/MN 120 MFEET MIiNUT6 PER NOR a XL �F��STER T1MN S
1 �. MINUTES PER INCA/. BEFORE ftAC G TIE LJ►rFyl OF CLEAN
off '' F S TIE 12 INCH LAYER OF CLEAN SMO IS PART OF THE Mjk10 COF6T7RICT�
S� h~-t`-- _ -J • _'
15 CONSIDERED CLEAN F IT CAN R56 T►E'i1RlIT iAR TEST RJR mNC SMS
Cl�qOPE .. , 6 THE TDP OF TPE CLEAN SAM LAYER AND THE TOP CIF THE IgOt IiD MMT BE
`,.•: ODNSTTiUC LEVEL
MS
SA LEA
CII `1 7 DISTRIBUTION PIPES ARE NCH DIAMETER SIMCED AO INCHES 011 CENTER
FI I SOD 3`v — '% CONNECTEDWE
AND AT ONS DRIRI�LEZ EVERY 36 NNC. CENTERTHE POI�NG DO80 PIWN M
E LAYER +_ /{� '}.�►�. ` , EE ANEW DRILL BIT TO AVOID BURRS INSIDE THE PIPE
R�kEr� `f _ B MINE INCHES OF ROCK Al`PLACED LINDfR THE PERFORATED LATERALS AMC 2
f� INCHES ABOVE FOR A TC NROCK CK DEPTH Of 12 INCHES
UP _ -+ 9 THE ROCKFIRSTCESTRAW
WI LAYER OF RED ROSINP&PERL6INCHES AT
\RRIT RgL 10 AATOcK ST 6 INCHES OF LOAMY SAND SHOULD BE PLA'ED OVF THE TOP OF THE
R LIgYE II
A 6-INCH LAYER Of TOP SOIL SHOULD BE PLACED OVER THE EP, (IRE MOUND 50
THAT A WSS COVER CAN BE ESTABLISHED
�12 CROWN THE SOIL COVER AT LEAST 6 INCHES IN THE CENTER DF 7HE MOUND
ABOVE THE ROCK LAYER SO THAT HE}VY FAIN W.— RUN OFF
13 SIDE SLOPES OF THE DIKES SHOULD BE NO STEEPER THAN • 1 ON CLAY SOLS
AND 31 ON SANDY ILS
HI 6A.TNIR. DEPEt" ON T; AMOUNT OF DAILY
SEUENf 1
5 IMU
MAFM EFFLT DOSE PFR PUMP CYCU SHOULD BE N: MORE THE TABLE
VALUES
• 16 MINIMUM PUMPING RATE IS 5+4OWN IN TABU PUMPING HEAD MUST BE
.•
ADEQUATE TO t"RCCIME ELEoe',ON DIFFERENCE. FRKT+JN LOSS PLUS 5 rtET
FOR PFRFORATFc �ATERRALS
0
E-'.
4 INCHES STRAW OR MARSH SANDY LOAM SOIL
HAY AND LAYER OF RED
ROSIN PAPER PERFORATED LATERAL
GRASS COVER 6 INCHES
SAND FILL TOPSOIL
MAXIMUM SLOPE -�-
!} TO I < _
°/ SLOPE
OPS IL __�
SUBSOIL PLOWED OR CLEAN ROCK
DISKED SURFACE 3/4 TO 21/2 INCHES
CROSS SECTION A - A
/-- PIPE FROM
/ PUMPING CHAMBER
W
PERFORATED ( i
LATERALS-
0 I
BED AREA
W
I i
I ,
j w i W i m
-
� Z � 2 I
20 0' ( 20' :.
INCHES#� INCHES _
�- DIKE 10 FEET_DIKE
MAX.
TOTAL WIDTH
PLAN VIEW
t,
,E
:I
LAYOUT OF PERFORATED PIPE LATERALS FOR
PRESSURE DISTRIBUTION IN MOUND
(I—PERFORATED PLASTIC PIPE111120 n. )
PERFORATIONS SPACED 30" OR 36"
END ON CENTER. PERFORATION
VIEW SIZ�tAY 8EOR /6l6'
PERFORATIONS ON BOTTOM OF
PLASTIC PIPE
END CAP 1o"
�SPACIN6
PERF ORA,I oN
MANIFOLD
PIPE ?-,'o #,a,
PIPE FROM
PUMPING CHAMBEP
TEE TO TEE LATERAL- MANIFOLD CONSTRUCTION
A
Topsoi I
4
Loamy Sand Backfill
Manifold
Grass Cover
Hay or Straw Covered
by Layer of Red Rosin
Paper for nylon fabric)
Perforation in Cap Near
Crown of Pipe
Perforations at Lateral
Invert
PIGGY BACK PLUG IN WEATHER ALARM WIRt
PROOF ENCLOSURE -OR LOCATE MANI+01.E COVER SICUREo FROSTPROOFING THE
IN HOUSE BASEMENT DISCHARGE PIPE
POWER SUPPLY _�J \ TO PREVENT VNAul.OA,ZED
1 ENTRY
mcK LU«u —
74' MANHOLE -
ALARM FLOAT ON SEFI✓LRATE
ELECTRICAL CIRCUIT
RESERVE CAPACITY \ \
AFTER ALARM SOUNDS
START LEVEL
J_ SHUT-OFF LE VEL .j'._
12 - IB MINIMLIM DEPTH
FWCITY YCA
GALLo
.,.'
PLACE A ROCK ENVELOPE
1.5
AROUND DISCHARGE PIPE
20
ROCK SHOULD BE 3'4 TO 2'/z
2.5
INCHES IN DIAMETER, WITH
UNION ON OIHER
UICK DISCONNECT
PITTING
NO SAND COVER WITH A 2
40
INCH THICK SHEET OF
50
EXPANDED POLYSTYRENE
TO SOIL
WHEREVER POSSIBLE MAIN-
3—TREATMENT
TAIN A GRASS COVER OVER
AREA
TOP OF TRENCH AND ALLOW
4' WEEPHOLE FOR
SNOW TO REMAIN IN PLACE
P vl4 vE MA. ,K,
-- Ch
CHE
CHEC
WHEN SNOW COVER IS LIGHT,
BE INSTALLED IF
PLACE A 6 INCH HAY OR
PIPE TO TREATMENT
200
AREA IS FRCST
STRAW LAYER ON GROUND
31 TO 45
ABOVE PIPE
PUMPING RATE SHOULD NOT EXCEED DROP BOX
OUTFLOW CAPACITY OR 45 GALLONS PER MINUTE
(2700 GALLONS PER HOUR)
PUMP DISCHARGE HEAD MUST BE ADEQUATE TO
OVERCOME ELEVATION DIFFERENCE BETWEEN THE
PIMP AND DISTRIBUTION BOX PLUS FRICTION LOSS
IN DISCHARGE PIPE.
LIQUID CAPACITIES OF VERTICAL CIRCULAR TANKS
INSIDE DIAMETER OF TANK
IN FEET
GALLONS PER FOOT
OF DEPTH
1.5
130
20
235
2.5
370
30
530
40
940
50
1470
60
213.0
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. TME PUMP
CONTROL SWITCHES WOULD NEED TO BE SET 21
FEET APART
BACKFILL
EXPANDED --
POLYSTYRENE
DISCHARGE
PIPE -- e
ROCK 3/4' 2'/2* DIA
TO DETERMINE THE LIQUID
CA,IACITY OF ANY TANK, FIRST
DETERMINE THE SURFACE AREA
OF THE LIQUID MULTIPLY
THIS VALUE BY 75 (GALLONS
PER CUBIC FOOT) TO DETER-
MINE THE TANK LIQUID
CAPACITY IN GALLONS PER
FOOT OF DEPTH.
.D4R�.OPP._ Box -
"KtX T2 SOIL CUVER Pl
�-
' 3i,' - 2'i= DIA HOCK
FROM PUMP - DRAIN TILE OR 81610
PERFORATED PLASTIC ►1/E
S MIN FROM BOTTOM OF TFIENCH TO
WATER TABLE OR CLAY OR IMCK
-:z--L LAYER
SOIL TREATMENT AREAS FOR TYPE Z HOMES*
REQUIRED SOIL TREA'MENT AREA
IN SQUARE FEET PER BEDROOM
PERCOLATION
RATE IN TRENCHES
MINUTES PER ppEE BELOW
INCH BEDS OIS7RIBUTION PIIPE. IN INCHES
6 12 1 IS 1 24
FASTER
THAN 0.1of
TO 5
12S
125
100
BS
75
6 TO 15
190
190
150
125
115
16 TO 30
250
250
200
165
150
31 TO 45
300
300
240
200
IAO
46 TO 60
330
330
265
220
200
SLOWER
THAN 60b
° SF_WAGE FLOW - 150 GPO PER BEDROOM
bSPECIAL DESIGN SHOULD K USED TO PROVIDf r.CEG GT(
TREATMENT AND ABSORPTION OF EFFLUENT
RECOMMENDED AMOUNI OF EFFLUENT TO PUMP
PER CYCLE IS 25 PERCENT OF DAILY SEWAGE FLOW
MINIMUM AMOUNT OF EFFLUENT TO PUMP PER
CYCLE IS 75 GALLONS
1 0 . - ' PUMPING bTATION IBY4"M--- I
IMETAL
COVER
..*,at
CONCRETE
MANHOLE
RING
METHODS OF SECURING MANHOLE COVER TO PREVENT i
UNAUTHORIZED ENTRY i
PENCIL
MARKS
6"
MANHOLE
INLET._ _ t ,
�= SCUM �' OUTLET
• • ';OUTLET LEVEL
- SCUM CLEAR SPACE
CLEAN OUT TANK WHEN
IS 3" OR LESS OR
B "8" IS 12" OR LESS
BLACK COLOR
• SLUDGE DISTINGUISHES SLUDGE
LAYER FROM LIOUID
MEASURE SCUM AND SLUDGE ACCUMULATIONS
IN THE SEPTIC TANK