HomeMy WebLinkAbout1987-10-10 Septic System Design SpecificationsS.P TESTING, INC.
961 KATYDID LANE
ST. MICHAEL, MN 55376
497.3566
STEVE SHIRMERS
November 10, 1987
Tom Betz
Lot 3 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 Agency standards WPC 40 and local
ordinances.
The soils on this site are typical of SCS soils mapped - :.+B - LeSueur loam.
A seasonally high water table was located at 16", 20", 22", 26", 5 280,
(mottling). Due to the seasonally high water table, a pre3surized mound
system will need to be installed. The bottom of the rock Iced must be lo-
cated at least 3' above the seasonally high water table.
The soils at a depth of 1B" have rzr^olation La`e aver%ying 6.1 min/inch
and are adequate for treating septic effi.-jnt.
A pumping chamber will need to be i.1stalled to lift the: `fluent to tt..?
treatment area.
The manifold and supply line pipe must ha -v:- uac:K drainage to the pumping
chamber. The distribution pipes shall hav,s their ends capped. Be sure
the rock and sand fill material are c ea,-. 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.
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 evr-r7 2 years.
Soil and PercoMtiow To.a��_ 1�iL� �_ _
Septic System D filln Steven B. Schirmers
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CITY of ORONO
Yost ')ffice Box 66 • Crystal Bay, Minnesota 55323 • Municipal Offices
On the North Shore of Lake Minnetonka
March 1988
SEPTIC SYSTM INSTALLATIONS - CONSTRUCTION i INSPECTION MVIRRIGMTS
A. All installations shall comply with the approves septic system design (the report you
work from should contain the City's signed and dated approval cover sheet, which
will note any required changes). _
B. A11 inspections must be cal led -in at least 24 hours in advance to ensure timely
i ctiona (473-7357). The following inspections are required:
rl. Pre -installation site inspection (any time prior to installation; purpose is to
rify proposed system location and layout).
2�. Tank inspection (prior to covering).
3. Standard trench drainfield inspection (at least 751 complete but prior to
covering).
( 4. )lotted - Inspections ( 2 required) :
' After ground is roughed -up, but prior to sand placement.
When rock and piping are in place, but prior to covering.
�inal inspection
a. When final grading is complete.
b. Pump station function final inspection.
C. Special requirements for poW station inspection:
Pump stations have become an increasing problem due to a wide range of installation
and electrical connection methods, and due to varying per ,tions of who is responsible
for various portions of the installation (incl iq bui ling inspectors, electrical
inspectors, system installers, electricians,c eneral contractors). The following
procedure and policy is immediately placed in effect. -
a. The septic installer shall be responsib. a for ensuring that all electrical
connections conform exactly to the diagram snown on the back of this sheet (90
EQCXPTIO�S) .
b. Septic installer shall call City for final pump station inspection when the pump,
floats, electrical connections, and alarm system are complete and working. The alarm
system will be tested, as will the pump on-off levels to ensure proper gallonage per
cycle.
C. Installer shall provide pump make and model number and a copy of the Pus:t:
Characteristic Curve to the inspector for filing in permanent City records.
d. Certificates of Occupancy for new residences will not be issued until the above
is completed.
Any questions? Contact Lyle Oman or Mike Gatfron at 473-7357.
BUILDING& ZONING - 473.7357 • ADMINISTRATION A FINA':sE - 4/.:'358 • PUBLIC WORKS - 473-7359
ASSESSING
WATER TIGHT a LOCKABLE ELECTRIC BOX
PLUGS OR ELECTRIC CONNECTIONS
2" PVC CONDUIT SCHEDULE 80 6"
SPACE
MANHOLE COVER CHAINED a LOCKED- ---
SEALED MANHOLE R I NGS
TREATEDPOST 4O4min)
ALL ELECTRIC CONNECTIONS MADE
INSIDE BOX
LOOP OF POWER CORD FOR
�r I '/ LLSETTLEMENT
SII
Q FINAL
StA L Wins S
Ar*' 8CX VXXy
w tru Pu -7y
�
UNION
AT LEAST 12" rl-NYM
BELOW GRADE
Wl RE FROM POWER SUPPLY
_
PIPE IS LAID ON A UNIFORM SLOPE FROM
PUMP STATION UP TO SOIL TREATMENT AREA
FOR PROPER DRAINBACK
SEALED TANK COVER
IF PIPE AT TANK MUST BE LOWER THAN
UNION TO GET ELEVATION FOR DRAINBACK,
PLASTIC ROPE OR CHAIN
A 1/4 INCH WEEP HOLE MUST BE USED
WITH ANCHOR
WEEP HOLE
ALARM FLOAT ON SEPARATE
ELECTRICAL CIRCUIT
NOTES ELECTRICAL WIRE FROM POWER SUPPLY
--5!AFU
MUST NOT RUN OVER ANY TANKS BUT
MUST BE LAID BESIDE OTHER TANKS
AND MUST BE PLACED IN CONDUIT
ALONG POST
SHUN gf-F—LE EL.. -9 _
ELECTRICAL CORDS FROM PUMP AND
n
FLOATS MUST BE RUN THROUGH
CONDUIT. WIRES CANNOT HAVE GROUND
PUMP CONTROL FLOAT
CONTACT.
J00
March 4, 1988
March 4. 1988
REDWOOD, CED OR .
WATER TIGHT a LOCKABLE ELECTRIC BOX
TREATED PO T14 x 4 mIn)
PLUGS OR ELECTRIC* CONNECTIONS -----
BALL ELECTRIC CONNECTIONS MADE
2" PVC CONDUIT SCHEDULE 80
6"SPACE
INSIDE BOX
5tAt_ WIitES
LOOP OF POWER CORD FOR
MANHOLE COVER CHAINED 81 LOCKED
k--
-�-- SETTLEMENT
SEALED MANHOLE RINGS
w tom.
FINAL GRADE
AT LEAST 12" '
BELOW GRADE
UNION
i WIRE FROM POWER SUPPLY
'
PIPE IS LAID ON A UNIFORM SLOPE FROM
IL TREATMENT AREA
_ FOR PROPER DRAINBACK
SEALED TANK COVER
�-- IF PIPE AT TANK MUST EE LOWER THAN
UNION TO GET ELEVATION FOR DRAINBACK,
PLASTIC ROPE OR CHAIN
A 1/4 INCH WEEP HOLE MUST BE USED
WITH ANCHOR
WEEP HOLE
ALARM FLOAT ON SEPARATE
ELECTRICAL CIRCUIT
�--
NOTES: ELECTRICAL WIRE FROM POWER SUPPLY
STAFff-yE��
MUST NOT RUN OVER ANY TANKS BUT
�� _
MUST BE LAID BESIDE OTHER TANKS
AND MUST BE PLXED IN CONDUIT
ALONG POST
SHUJ-- 4EF-L�� — -
ELECTRICAL CORDS FROM PUMP AND
FLOATS MUST BE RUN THROUGH
WIRES CANNOT HAVE GROUND
PUMF CONTROL FLOAT
CONTACT
J00
March 4. 1988
L-13
CERTIFICATION 1 00627 Logs of Soil Borings
�. Location or Project Lot 3 of lot 41 Auditor's Sub #203
Borings made by S -P Testing, Inc. Steve Schirmers Date 11-5-87
Classifiction System: AASHU ; 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 in
feet Surface elevation 961.3 feet Surface elevation 958.8
0 - I 0 -
Topsoil -dark brown loam
0 - 1'
1 - Lark 1, - 1'4"-g5jy13R$wn 1 a 1 -
2 - I Gray silty clay loam
3 -
144"
- 312"
Rusty
gray
loam
4-
3,2"
- 4'8"
Rusty gray
loam
w/traces
5 _
418"
- 5'
of sand
Rusty olive gray
loam
6 -
50 -
6'
7 -
End of boring at _ feet.
Standing water table:
preser, at 4-1/21 fee, of depth.
21 urs -after boring.
Not press— in hole
Mott:. _'; z^-.1:
Observed at 114" feet of depth.
Not present in hole
Comments:
2 -
Z
5 -
6 -
7 -
Topsoil very dark
brown loam
0 - 1-1/2'
Dark gray brown loam
2'4" -mottling
1-1/2' - 2'10"
Gray brown clay loam
2010" - 4'8"
Gray loamy sand
4' 8" - 6'
End of boring at 6 _ feet.
Starding water table:
present at-- feet of depth,
hours after boring.
Not present in hole K
Muttled soil -
Observed at 2'4" fees of depth.
Not present in hole
Comments:
L-13
CERTIFICATION M 0OC27 Logs of Soil Borings
Location or Project_ Lot 3 of lot 41, Auditor's Sub ii203
Borings made by S -P Testi+ na,_Inc. Steve Schirmers Date 11-5-87
Classifiction System. AASHU ; 9SDA-SCS X ; Vnif+ed Other
Auger used (check two): Hand X , or Power`_, Flight , or Bucket X
Depth, Boring number 5 Depth, Bori,ig number_ 6
in 957.7 in 960.2
feet Surface elevation feet Surface elevation
0 - 0 - -
Topsoil very dark
brown loam
1 - 0 - 1'4"
Dark brown loam
2 - 2'2" -mottling
11400
- 21 411 11
Cray brown 2'4" - 2'10"c
I
3 Gray brown clay loam
2'1,-,"-- 3110"
4 Rusty gray silty clay loam
5 -
:-:
7 -
8 -
3'10" - 4'10"
Gray silty loam
4'10" 5-1/2'
Rusty gray loam
5-1/2' - 6'
End of Loring aL 6 feet.
Standing water table:
present at__ feet of dope-
hours after boriag.
Not present in hole X
Mottled soil:
Observed b•: 2'""
'
feet of depth.
Not present in hole
Cos ntss
Topsoil very dark brown
0 - 10" loam
Dark brown loam
10" - 1110"
Brown1'10" - 21•.�'loamottling
Gray brown clay loam
2'2" - 3110"
Rus'y olive gray loam
3'10 t'
End of boring at 6 *_.
Standing water table:
pt. .vnt at_, fee, )f depth,
t,. .irs after boring.
Not 7resent hole X
Nottle Coll:
Obsei. at i1,2" feet. o.- ole; +.h.
Not p t .•.-e hole
Comments.
L-13
CERTIFICATION M 00627 Logs of Scil Borings
Location or Project Lot 3 of lot 11, Auditor' :ib #203
Borings made by__S-P Testing, Inc. SteveSch;r.'La Date 11-5-87
Classifiction System: AASH)__; 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 elevation 957.2 feet Surface elevation 955.3
0 - N i0 - i—
Z
End of boring at 6 feet.
Standing water table:
present at 5140 of depth,
21 hours al.er boring.
Not present in hole
Mottled soil:
Observed at 1'8"
feet of depth.
Not present in hale
Comments:
7 -
8 -
End of boring at 6 feet.
Standing water table:
present at 4-1/2 feet of depth,
21 hours after '-3ring.
Not preF-�;nt in hole
Nottled soyi;
Observed at 1'10" feet c depth.
Not present in hole
Comments:
Topsoil very dark brown
Topsoil very dark
1 -
loam
0 - 1'4"
1 -
gray loan
118" -mottling
1'10"-mottlin!
2 -
Very dark gray brown loam
..
2 -
0 2'
Dark gray i:jam
1.14" - 2'8"
2' - 2'8"
2 -1/2' -mottling strong
3 -
3 -
Very dark gray clay loam
2'8" - 3'10"
218" 308"
Gray silty loam
4
4
Gray silty loam
3'10" -.4'10"
5 -
5 -
Rusty gray loam
6 -
4'10" - 6'
6 -
3 # 801 - 6
Z
End of boring at 6 feet.
Standing water table:
present at 5140 of depth,
21 hours al.er boring.
Not present in hole
Mottled soil:
Observed at 1'8"
feet of depth.
Not present in hale
Comments:
7 -
8 -
End of boring at 6 feet.
Standing water table:
present at 4-1/2 feet of depth,
21 hours after '-3ring.
Not preF-�;nt in hole
Nottled soyi;
Observed at 1'10" feet c depth.
Not present in hole
Comments:
PERCOLATION TEST DATA SHEET
S—P Testing, Inc. 11-6-87 10:54 'C=---
Percolation test readings made by 4+" ta,wi parting at p.m.
Lot3oflot41,Auditor's Sub #203 1 11-5-87
Test hole locatio" , Hole number Date hole was prepared
Depth of hole boautn 18 —inches. Diameter of hole 6 inches
Soil data from test hole:
Depth, inches Soil textutc
0 — 12" Topsoil dark brown loam
12" — 16" Dark gray brown loam
16" — 18" Gray silty clay loam
Method of scratching sidewall Knife
Depth of gravel in bottom of hole 2 inches
11-5-87 2:OOp.m. 12
Date and hour of initial water filling , Depth of initial water tilling inches above hole twuom
Method used to maintain at least 12 inches of water depth in hole for at least 4 hours A u t oma t i c --Z." hon
, Maximum water depth above hole bottom during tc%l 6 m%hes
Time
10:44
Time
interval.
minutes
prefill
Measuremeat,
inches
6
Drop in water
level, inches
Percolation —
rate,
minutes per
inch
Remark%
10:54
11:09
2-1/4
6.7
15 min
11:20
11:35
"
2-1/8
7.1
"
11:36
11:51
"
Ferwimm raw - 7 • 0 m.auwb per inch.
PERCOLATION TEST DATA SHEET
a.n '
Percolation test readings made by S - P Testing, Inc. urL-1 l - 6 - 8 7_stining at 10:551--c p, m.
3
Test hok location Lot3of 1ot41 ,Auditor's Sole number numl
hole was prepared 11-5-87
Depth of hole button, 18 inches, Diameter of hole 6 inches
Soil data from test hole:
Depth, inches
Soil texture
0 - 18" Topsoil very dark brown loam
Method of scratching sidewall Knife
2
Depth of gravel in bultom of hole— inches
11-5-87 2:00p,m, 12
Date and hour of initial water filling Depth Of initial water filling - inches above hole txmoni
Method used to maintain at least 12 inches of water depth in hole for at least a hours Automatic siphon _
6
Maximum water depth atxwe hole txmum dunng tc,t__—. _ _ _—__inche,
Tinto
Time
interval,
minutes
Measurcincm.
inches
Drop in water
level, inches
Percolation --� - - - --------
rate, Remarks
minute, per
_
10:44
pref ill
6
_inch
4.5
, 15 min
10:55
11:10
of
3-3/8
11:19
11:34
3-1/8
4.8
"
11:37
11:52
"
3-1/16
4.9
"
4 • 7
Pacinlm rate s
i aunutc> per Inch.
M
1•.
PERCOLATION TEST DATA SHEET
Percolation test readings made by S–Y Testing. Inc. on 11–b–ti / starting at to : 5b P.
Test hole IocatiunLOt Sof 1Ot41 ,Auditor's Sukollgttin r J Date hole was prepared 11-5-87
Depth of hole buttum 1 —Binches, Diameter of hule 6 inches
Soil data true► test hole.
Depth, inches suil tc+tture
0 – 16" Topsoil verf_smrl; brown
16" – 18" Very dark gray brown loam
Method ut scratching sidewall Knife _
2
Depth of gravel to buttum of hole —inches
11-5-872,00 in. 12
Date and hour of initial water filling . Depth df inUt d water filling orches atxrvc hole boo n►
Method used to maintain at least 12 inches of water depth in hole fut at least 3 hours Automatic siphon
6
Maximum water depth above hole Nmum dui ung trst_____ _------uu hr.
Time
Time �—
interval,
minutes
Measurentcnt,
inches
Drop in water
level, inches
Percolation
rac,
nrtnntes per
inch
Remarks
10:44
pre fi11
6
10:56
11:11
"
1-3/4
8.6
15 min
11:18
11:33
"
11:38
11:53
Percolation rate = E - 6 minutes per inch
PERCOLATION TEST DATA SHEET
S -P Testing, Inc. 11-6-87 10:570=li►-t
Percolation test readings niade by on starting at p m.
Test hole location Lot Sof 1ot41 ,Auditor's SHI t�unib�r 4 Date hole was prepared 11-5-87
DILpth of hole buttuni 18 inches, Diameter of hole 6 inches
Soil dale from test hole:
Depth, inches
Soil texture
1 •• • •. • •.II
Method of scratching side wall Knife
2
Depth of gravel in bottutn of hole inches
11-5-87�U m. 12
Date and hour of in:ual water filling— p imual water filling— —inches above hole himom
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 button during test___.—ui.ltcs
Time
Time
interval,
minutes
Measurenxnt,
inches
Drop in water
level, inches
Percolation
rate,
minutes per
inch
Remarks
10:44
prefil1
6
10:57
11:12
113-1/16
4.9
15 min
11:17
11:32
2-15/16
5.1
"
11:39
11:54
"
Perculation rite - 5. 0 minutes per inch.
PERCOLATION TEST DATA SHEET
Percolation test readings made by S - P Testing, Inc. on 11-6-87 staring at 10 : 5 8 a.m.
Lot3oflot41,Auditor's Sub #203 5 11-5-87
Test hole lucatiu" - ole number Date hole was prepared
Depth of hole bottom 18 inches, Diameter of holes 6 inches
Soil data from test holt:
Depth, inches Soil texture
0 - 16" Topsoil very dark brown loam
16" - 18" Dark brown loara
Method of scratching stdewall Knife
2
Depth of gravel in bottom of hole— inches
11-5-97 2:OOp.m. 12
Date and hour of initial water filling , Depth of initial water filling inches aho%c little h,stlom
Method use0 to maintain at (cast 12 inches of water depth to hole for at leaf J hours_Automatic siphon
6
. Maximum water depth above hole bottom during test—u►che.
Time
Time
interval,
minutes
Measurement,
inches
Drop to water
level, inches
lirculattun
rate.
mtnule% per
itch
5.5
Remark%
15 min
10:44
Prefill
6
10:58
11:13
of
2-3/4
If
Percolsuon rate - 5.6 minutes per inch.
M
■:
PERCOLATION TEST DATA SHEET
S -P Testing, Inc. a.m.
Percolation test readings male by on 1 1- 6 - 8 7 wing ai 10:5 9 P.M.
33 ru.
Test hole locationLot3oflotill,Auditor's Suholenum'm 6 , Date hole was prepared 11-5-87
Depth of hole bottom -1 8 inches, Diameter of hole—6 inches
Soil data from test hole.
Depth, inches Soil texture
0 - 10" Topsoil very dark brown loam
10" - 18" Dark brown loam
Method of scratching sidewall Knife
2
Depth of gravel in bottom of hole inches
11-5-87 2:OOp.m. 12
Date and hour of initial water fi:,mg , Depth of initial water filling— inches above hole butioni
Method used to maintain at Team 12 inches of water depth in hole for at le:ut 4 hours Au toms t is s i p h o n
6
Maximum water depth above hole bottom during to%t_ —inches
'rime
10:44
Time
interval,
minutes
pre fi11
Measurement,
inches
6
Drop in water
level, inches
Percolation - —
We, Remarks
minutes per
inch
—�
i
10:59
11:14
I
2-11/16
5.6
15 min
11:15
11:30
11:41
11:56
M
Percolauua rate = _ 5.6 ry+inutes per titch.
-PERFORATED -
LATERALS
SANDY LOAM SO I L
LAYER OF STRAW OR
MARSH HAY COVERED
•,�-,�'
WITH REO ROSIN PAPER
PIPE PUMP
fir
3j•_2�j • .�_.,
CLEAN DOCK •''',. ��� ,+):,y�%' : / ��
DIVERSION FOR
• - /� NOTE`' SURFACE WATER
60 TOPSOIL •. % ' ; : . I SELECT AS LEVEL A !TE AS P095111ILE FOR THE WOUND
2 REJAWE EXCESS vE�TATION. FLAY OF3Hc YLIw0[ TtFM
J • , / jM ROUGHEN TIE SUF011� TOIL s NOES 00 TTS pp11����� i TK M01�TURE
OONTENT 15 LESS THAN THE PLASTIC LIMIT W& FS PLAdTIC i 1T CAN E ROLLED
•:
we �i j MTO AN ''�L MCN wSK) 000 NOT REI�AOYI 0� T►W�Fm'w'p
PEIVORMAKK 004 CLAY SOIL
EDu1PNEXT� i[yTa0�5��M011
w ��""� `r� ,i" /� �� ''• ' vG: M A PLASTTIICC C%T
OF0
7�ir;'tri� • �I`�J '' I \ iC 3T T►E <larpmety 1 :OR OOF6rIhJCTNG THE WOUND SO AS NOT
M 1 ,� 4. 71ERF MIST AT z f��T Or IM OR FYl_ 9QIL ►IMnM6 A 1A-
. '�.�� ''-� J•J• ��• 1 TION R♦TE N� I?'O wINW IFIC11 ry FA /! 1 TMw S
MINUTES PER PC". PPLACIM T1E�OF CLEAN f.FO
/ • ✓0
SLop 4. '; • s THE a INCm LAPpH OF CLiAN SAND IS P29T OF THE �p
► -� ' •' a ` IS CONSIDERED CLEAN IF IT CAN PA44 THE IITRnT JM1� TIST lIYO
4 `C TSP E,ul y�ro urrR ,wo THE TOP a T» ROCK Eim FIesT EIE
NO .r✓� 7 DISTRIBUTION PIPES ARE hMCH DIAMETE'N PNcnFS ON CENTER
FI S O1 6 —��\ '.. {' CONNECTED TO A MANI/�L.D M THE aj( ER OF T.ff BED PIPES ►VIE
�• r INCH PERFORATIONS DRILLED EVERT 36 INCHES AND POINTIFK DDY�Ra
- •`...' A NEW DRILL SIT TO / OiD B )FMS INSIDE THE PIPE
R�kEr� YER e NNCCHE'S�AHES E FMR A ETOTALPLACED NOCK OOVT' EN THE
1 iWHIMNISTEo LATERALS AND z
Up
9 THE ROCK R FIRST COVERED ED SLA NV OF IMP STRAW WHICH 6SE�.
. • . COVERED WITH ♦ LAYER OF RED ROSIN PAPER 6 INCHES AT THE
BAR%T`JRA .. 10 AT LEAST 6 04CHIM OF LOAMY SAND SHOULD K PLACES OVER THE TDP OF rm[
R I ROICIt KD
I A 6 -INCH LAYER OF TOP SOIL SHOULD K PLACED OVER THE ENTIRE MOUND SO
LAYE�T1MT A CNA% COVER CAN K ESTAGUSHED
)2 CROWN THE SOIL COVER AT LEAST 6 RNCHO M THE CENTER Of THE MOUND
ABOVE THE ROCK LAYER SO THAT NEWT RAIN WILL RUN OFF
13 SIDE SLOPES OF THE DIKES SHOULD K NO STEEPER THAN • 1 ON CLAr SOILS
AND 31 ON SANDY SOILS
N I.M68, OEPIENIM ON THE AMOUNT OF ONLY
Y f)
15 MAXIMUM EFFLUENT DOSE PER PUMP CYCLE SMLULO K NO MAM THE TABLE
VALUES
16 MINIMUM PUMPING 01111471 IS U40MN M TABLE PIMPING HERO MUST K
AOEOU♦'.E TO €E ELEv♦TION OKFERENCE. FRICTION I= PLUG S FEET
FOR PERFORATED LA EFALS
PERFORATED -
�,�_.� LATERALS
SANDY LOAM SOIL
LAYER OF STRAW OR
- MARSH MAY COVERED , '
WITH RED ROSIN PAPER �.' = / / -_ r
OR
PIPE �'R& p
CLEAN DOCK
DIVERSION FOR
6" TOPSOIL • •1 I SELECT j r N0'' SURFACE WATER
- _ •. AS LEVEL A VIE AS POSSE FOR T►E MOUND
,s' ,•' , 2 REMOVE EXCESS VEITTAT . PILOIK DESK OR �w MW Wp1 T( X
"wG EM T►1E S41�C[ IOIL 6 ND4ES OED QQ_TrNS OKl i TIE MgISTURE
COMTLINT K 1E55 T►MM THE PLASTK IN a0ti IS PLASTIC i IT CAN BE ROLLED
• ► ' / INTO yr Iti r1CrI wrEl. DO NOT !1/1FACE
,� ' •I: / ,'� COJiDRM0ML1I c ►ECA1�iR1Rp
M'
�`•,�.� • .. / t' ,//• N A RASTIc C01OIDO NOT
TWIN
/DR CONSTRUCT" THE IIOUIO 10 AS NOT
�'�. 911 � •:C • 10 QCT TSE IiOI�L,T � � /�
M� �• 1 .: • TIOiNERA TN� AT T1YM 120 � �I &XLNO lfr%U pa"s
'V(���5. ( 11 rf l%,► MINUTES PER INC11�� PLACIWQ T1E�D< CLEAN SAND
S THE 12 IDE LATER OF �FiN Sit UA) K PUR OF TIE AOIRO D�ATA3FT10 _f�1O
�. � :. �!- � � K CONSIDERED GLEAM t IT Wi I�S6 THE'FTRIIT ,NII_ TL1T IOP ODwCRE'It 7wMi
SAND
CLE /� OpE '' ; . !S' l TIE TOP 0� 7 H _ CF�N SAM 1AM01 AMC THE TOP OF THE IbOt �D N1RT
4 n1 >„ r �� •' z ... DOMST1k1CTED IEvEL
D BE
%; ` ,►y 7 DISTRIBUTION PIPES ARE I'//�� NUN DIAMETER SPOM 40 INCHES ON �/�
N FI SO `� `�6'—� \• • a NO CONNECTED TO A MANUOLD N THE CENTER OF THE ROCK BED. PIPES MWE
D�( A �`p Jam• .: " '.. r 'INCH PERFORATION• DRILLED EVERY 36 INC HS AND POINTING OOW900AND
8X0' `EPA YE►T - � � ``- •'�•�•.B NINE NEW DRILL
OF Roca T�ORE.rPOLwACB�URRSp[Hal 'T*IE PIPE.
.Eo LATERALS AND :
UP ` •''
INCHES ABOVE FOR A TOTAL ROCK OfPTFI OF 12 nKH m p�
N� `. a••.• ! THE COVERED WITH 1A LAYEERR OF RED ROSIN PAAPPEYER R MAY 6 INCHES STRAW AT THE SEAMS.
i�IJR/I . a ' • 10 AT L ISS D CH 6 INCHES OF Lowy SAND SHOULD BE PLACED OVER THE TOP OF THE
ROCK
I A (rIhCN LAYER OF TOP SOIL BE
OAR THE ENTIRE MOUND
ER �AyE�12 CROWN THE SOIL �C9VE�AT�LEAASTT ABUSHED 6D INCHES NE THE CENTER MOUNDS i
ABOVE THE ROCX LAYER SO THAT HEAWN RAIN WILL RUN OFF
13 SIDE SLOPES OF THE OIHtES SHCIuLD BE NO STEEPER THAN 6-1 ON CLO SOILS
AND 3 I ON SANDY SOILS
N LAMR. DEPENDS ON M /IMOMMT OP (WLT
S£ f 1
IS MAXIMUM EFFLUENT DOSE PER PUMP CYCLE SHOULD BE NO MORE THE TANA
VALUES
16 MINIMUM PUMPING RATE IS SHOWN N TABLE RJMPING HEAD MUST K
ADEQUATE TO OvE p ELEVATION DIFFERENCE. FRICTION LOSS PLUS S PST
FOR PERFORATED LATERALS
LAYOUT OF PERFORATED PIPE LATERALS FOR
PRESSURE DISTRIBUTION IN MOUND
PERFORATED PLASTIC PIPEIif':i11P. )
PERFORATIONS SPACED 30" OR 36"
ON CENTER. PERFORATIONEND \
VIEW SIZ AY 8E ;i, '; '�3�: 16'
OR i4
PERFORATIONS ON BOTTOM OF
PLASTIC PIPE
m
END CAP 4Q,
froN SPA��N�
�rRf4RA
MANIFOLD
PIPE
=4 PIPE FROM
PUMPING CHAMBER
a
4 INCHES STRAW OR MARSH
HAY AND LAYER OF RED
ROSIN PAPER
GRASS COVER
SAND FILL--,,
-St NDY LOAM SOIL
r-- PERFORATED LATERAL
6 INCHES
TOPSOIL
MAXIMUM SLOPE -� J.\�
4 TO I
°/ SLOPE
T TOPSOIL -,
SUBSOIL PLOWED OR CLEAN ROCK
DISKED SURFACE 3/4 TO 2'/Z INCHES
CROSS SECTION A - A
-- PIPE FROM
PUMPING CHAMBER
TIT
/
PERFORATED
LATERALS I '
BED AREA
----� w
, � J
I , ,
w_
A i Ln w; w' I m A
U , 11
Z
20 '0 0 20
INCHES` Iq INCHES �
10 FEET_DIKE
D I K EMA X.
-- - TOTAL W 10 T H -- -
--
PLAN VIEW
TEE TO TEE LATERAL- MANIFOLD CONSTRUCTION
Topsoi I
Loamy Sand Bockf i l l
r
Gross Cover
Hay or Straw Covered
. by Layer of Red Rosin
Paper (or nylon fabric)
Perforation in Cap Near
Crown of Pipe
zc Tee
4 — Perforations at Lateral
Reducer Manifold Invert
4� < Tee
Focl,, Layer
12 - I nch Layer of
Clean Sand
PIGCr BACK PLUG IN WEATHER
PROOF ENCLOSUPE-OR LOC►TE
IN HOUSE BASEMENT
''OWER SUPPLY
CONTROL WIRE
PUMP POWER CORO =
214' MANHC LE
-ALARM WIRE FROSTPROOFING THE
�MANHOLE CODER SECURED
. TO PREVENT UNAUTHORIZED pISCHAk�,E PIPE
ELECCTRRF
ELECTRICAL CIRCUITT
RESERVE CAPACITY \\
AFTER ALARM SOUNDS
START LEtf j S _ _ L _
3• )
— _SHUT-OFF LEVEL
12'-18• MINIMUM DEPTH
l 0
,.
PLACE A ROCK ENVELOPE
IN FEET
AROUND DISCHARGE PIPE
1 5
ROCK SHOULD BE 3'4 TO 2 Vz
2 0
INCHES IN DIAMETER, WITH
UNION OR OTHER
NO SAND. COVIN WITH A 2
UICK DISCONNECT
530
ITTING
INCH THICK SHEET OF
50
EXPANDED POLYSTYRENE
60
WHEREVER POSSIBLE MAIN -
TO SOIL
3-f TREATMENT
TAIN A GRASS COVER OVER
AREA
TOP OF TRENCH AND ALLOW
•' WEEPHOLE FOR
SNOW TO REMAIN IN PLACE
DAAINB
— VALVE CHEfr VALVEE MAY
WHEN SNOW COVER IS LIGHT,
BE INSTALLED IF
PLACE A 6 INCH HAY OR
PIPE TO TREATMENT
AREA FRCTT
STRAW LAYER ON GROUND
PROOF
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 ADEr)UATE TO
OVERCOME ELEVATION DIFFERENCE BE WEEN THE
PUMP AND DISTRIBUTION BOX PLUS FRICTION LOSS
IN DISCHARGE PIPE
LIQUID CAPACITIES OF VERTICAL C114CULAR TANKS
INSIDE DIAMETER OF TANK
GALLONS PER FOOT
IN FEET
OF DEPTH
1 5
13.0
2 0
235
2.5
370
30
530
40
940
50
1470
60
213.0
FOR EXAMPLE, A CIP!CULAR 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
(2'-/o,) FEET APART
BACKFILL -
EXPANDED
POLYSTYRENE
DISCHARGE A6'
PIPE s'
ROCK 3/4' 2'/2" DIA
TO DETERMINE THE LIQUID
CAPACITY OF ANY TANK, FIRST
DETERMINE THE SURFACE AREA
OF THE LIQUID. MULTIPLY
THIS VALUE By 75 (GALLONS
PER CUBIC FOOT) TO DETER-
MINE THE ;ANK LIQUID
CAPACITY IN GALLONS PER
FOOT OF DEPTH
DROP BOX
12' SOIL COVER •
34 . 2'i� DIA ROCK •
FROM PUMP DRAIN Tit E OR RIGIC
_J PERFORATED PLASTIC PIPE
y S MIN. FROM BOTTOE.4 OF TRENCH TO
WATER TABLE OR CLAY OR ROCK
LAYER
SOIL TREATMENT AREAS FOR TYPE I HOMES
REQUIRED SOIL f REATMENT AREA
IN SQUARE FEET PER BEDROOM
PERCOLATION
RATE IN TRENCHES
MINUTES PER p� pF ��ppyyyy
INCH SEEPAGE
DISTRIBUTION PI K IINCIES
46 TO SLOWER 60 I 330 1330 1265 1220 1200
THAN 60b
°SEWAGE FLOW I 1 50 GPO PER BEDROOM
bSPECIAL DESIGN SHOULD BE USED TO PROVIDE ACED.:
TREATMENT AND ABSORPTION OF EFFLUENT
RECOMMENDED AMOUNT OF EFFLUENT TO PUMP
PER CYCLE IS 25 PERCENT OF DAILY SEWAGE FLOW.
MINIMUM AMOUNT OF EFFLUENT TO PUMP PER
CYCLE IS 75 GALLONS
UNIVERSITY OF MINNESOTA
EXTENSION AGRICLI,.TURAL ENGINEERING _
PUMPING STATION `
1
6
1 12
18
1 24
FASTER
THAN O.I b
0.1 TO 5
125
125
100
85
75
6 TO 15
190
190
150
125
115
16 TO 30
250
250
200
165
150
31 TO 45
300
300
240
200
180
46 TO SLOWER 60 I 330 1330 1265 1220 1200
THAN 60b
°SEWAGE FLOW I 1 50 GPO PER BEDROOM
bSPECIAL DESIGN SHOULD BE USED TO PROVIDE ACED.:
TREATMENT AND ABSORPTION OF EFFLUENT
RECOMMENDED AMOUNT OF EFFLUENT TO PUMP
PER CYCLE IS 25 PERCENT OF DAILY SEWAGE FLOW.
MINIMUM AMOUNT OF EFFLUENT TO PUMP PER
CYCLE IS 75 GALLONS
UNIVERSITY OF MINNESOTA
EXTENSION AGRICLI,.TURAL ENGINEERING _
PUMPING STATION `
METAL
COVER
,*.a
sig
CONCRETE
MANHOLE
FLING
METHODS OF SECURING MANHOLE COVER TO PREVENT
UNAUTHORIZED ENTRY
4.
PENCIL
MARKS
20" vi ' — n
MANHOLE
/ C All - -
INLET SCUM ...
` ;1
OUTLET
LEVEL
- SCUM CLEAR SPACE —=
— �� ;;
CLEAN OUT TANK WHEN:
"A" IS V OR LESS OR
"B" IS 12" OR Lc -SS
'
BLACK COLOR
SLUDGE
DISTINGUISHES SLUDGE
LAYER FROM LIQUID
MEASURE SCUM AND SLUDGE ACCUMULATIONS
IN THE SEPTIC TANK
SEPTIC SYSTEM INFORMATION
STREET ADDRESS 3 So!D C F4"-s77/-)e`-/R.IVt
LOT 3 BLOCK_ SUBDIVISION rz ADDInbN
MONTH AND YEAR TESTING DONE /1/,OL/ . 19S7
ITEMS ALREADY COMPLETED
y S r Tse D e SlG-fo "7 g poMr
NEED TO COMPLETE BEFORE ISSUING BUILDING PERMIT:
OBORINGS
UPERC TESTS
OSYSTEM DESIGN
9S
PLAN
O OTEER
0 COMMENTS C'1o^^N e Jyi t . PCS'r7I S/ rz�-.S
DATE THIS SHEET FILED 20-2'O BY`�
SUBDIVISION FILE NO. IZ-32—
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