HomeMy WebLinkAbout1989-09-28 Septic System Design ReportWhitney MacMillan
1560 Fox. Street
New House Parcel
Orono, Henn. Co.,
S-P .TESTING, IA"C"S
951 KATY D i D LAN E
ST. MICHAEL, MN 55376
. 497.3566
Steven B.- Sphirmers .
3000 & 2400
MN
September 28, 1989
This system is Designed for a Type 1, four bedroom home and in accordance
with the Minnesota Pollution Control Agency Chapter 7080 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 22", 24", 36"
48", (mottled soil).' 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 12.4
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 a:,d 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 1001.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.
Soil and Percolation Tests CONT' D
Septic System Design
i
A th proper installation. and maintenance, this system should have no
problem in treating septic effluent effectively.
Recommend to pump the septic tank every„year if there is only 1 tank •
& every 2 years if there are 2 tanks.
Steven B. Schirmers Gr
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Location or Project WhicneyyMacMillan, y1560 Fox St., (new house), Orono
Borings made by S-P Testing, Inc. Ste_v_e_Sc:Lirmers Date 9-21-89
Cldssif-ction System: AAS:iU ; USDA-SCS X Unified Other'
Auger used (check two): Hard X or Power Flight_, or Bucket X
Dept!, Boring number 1 Depth, Boring number
2
in 986.1 in
feet I Surface elevation feet I Surface elevation 985.6
0 _
0 -
Topsoil dark brown loam
Topsoil dark brown
loam
0 - 11211
f Brown loam
Brown clay loam
1'2" - 2'-MOTTL
2 - 10" - 212"
2 _
Olive brown clay
Brown sandy clay
loam
I loam
3 -
3 - 2,2„ _ 31211
2' - 312"
Brown sandy loam to loam
! 3'2" - 4' -MOTTLING
Rusty olive brown
4 -
4 _
loam
Rusty olive brown
loam
4' _ 41,0"
7 i Rusty olive gray
1 5
loam
3 2 "
4'10" - 6'
HIT ROCK
6 -
1
6 -
7 -
I
7 -
1
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 4'
meet of depth.
Not present in hole
Comments:
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 21 feet of depth.
Not present in hole
Comments:
�1: ��:i\�►�` �'�0[ 1 .JOGS 0= .-.t�� DOi ^-iS
ocation or Protect Whitney MacMillan, 1560 fox St., (new house), Orono
orings made by S-P Testing, Inc. Steve_Schirmers Date 9-21-89
lassifiction System: AASHO USDA-SCS X Unified Other
tiger used (check two): Hand X or Power , Flight , or Bucket X
X
epth, Boring number 3 Depth, Boring number 4
in
ee- Surface elevation 9. feet Surface elevation 984'9
M
1 -
2 -
3 -
4 -
Topsoil dark brown loam
0 -8"
Brown loam
8" - 1'4"
Brown 1'4" 1'10" str!$ag
Brown strong loam
1110" - 3'-MOTTLING
Rusty olive gray
brown loam
3' - 4-1/2'
HIT ROCK
end of boring at 4-I/2 feet.
Standing water table:
present at feet of depth,
hours after boring.
Not present in hole X
IMo;.-led soil:
[Notepresent
bsrved at 31 feet of .depth.
in hole
omments:
2 -
3 -
4 -
5 -
6 -
7 -
8 -
Topsoil dark brown loam
0 - 8"
Gray brown loam
8" - 1'2" '
Brown 192" - 118" c1I0
BB am
Ioaomn 118' - 2'-MOTTLING
Rusty olive brown
loam strong
2, - 3'2„
Rusty olive brown
loam
3'2" - 4'
HIT ROCK 3RD ATTEMPT
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 2' feet of depth.
Not present in hole
Comments:
CCRTIFICA:'I0N a 00627 :'ccs o= dor_ncs
Location o, Project Whitney MacMillan, 1560 fox St., (new house) Orono
Borings made by S-P Testing, Inc. Steve Schirmers Date 9-21-89
Classifiction System: AASHO USDA-SCS X Unified ; Other
Auger used (check two): Hand X or Power , Flight , or Bucket X
Depth,
Boring number 5
+
Depth,
Boring number 6
in I
feet I
Surface elevation 985.2
in
feet
984.0
Surface elevation
0 - !
0 -
Topsoil dark brown loam
Topsoil dark brown loam
0 - 10"
0 - love
Brown clay loam
Brown clay loam
1 -
I -
10" - 1110"-MOTTLING
lb" - 1110"-MOTTLING
Rusty olive brown
2 -
2 -
Olive brown loam
1110" - 2-1/2'
clay loam
Rusty olive brown loam
3 -
1'10" - 3'
3 -
2-1/2 - 34 "
Rusty olive gray
clay loam
Brown sandy loam
4 -
4 -
3' - 4' 2"
314" - 4'4"
Rusty olive brown
Gray brown loamy
5 _
loam
5 -
sand to sandy
loam
4 1 411 _ 6'
6 -
41211 - 6'
6 - -
I
1M
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 1'10"feet of depth.
Not present in hole
Comments:
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 1'10" feet of depth.
Not present in hole
Comments:
C-TRT.#00627
PERCOLATION TEST DATA SHEET
a.m. ,
Percolation :estreadingsmadcby S—P Testing, Inc. on 9-22-89 starting,ar 10:39 p.nt.
Test hole location 1560 Fox St . ,%Iew House,, Flo Ou9ber 1 , Dateitoie was prepared 9-21-89
Depth of he': b(-ttom 18 inches. Diameter of hole, 6 inches
Soil data from test hole:
Depth.inc`es
Soil texture
0 - 10" Topsoil dark brown loam
10" - 18"
Brown loam
Methtxl of wratching sidcwall Kni f e
2
Depth of gravel in bottom of hove inches
Datcand hour ofinitta;water !;;inn 9-21-89 4JeOOni!ialwate,•:il;ing 12 inches above holcbottom
Mc. -hod user to maintain at Icam 12 inches of water depth in hole for at ;east 4 hours Automatic siphon
6
, Maximum water depth above hole bottom during test inches
Time Percolation
Time interval, Measurement. i Drop in water rate. Remarks
minutes I inches i level, inches minutes per
inch
10:18 prefi11 I 6
10:39 11:09 1 4-3/8 1 6.9 30 min
11:18 11:48 4 4-1/8 1 7.3 I "
11:51 12:21 3-7/8 7.8 "
t
j
i I I
Percolation rate = 7.3 minues per inch.
CE'AT.000627
PERCOLATION TEST DATA SHEET .
S-P Testing, Inc. 9-22-89 10:38
Perco!ation test reac!ings made by on starting at
1560 Fox St.(new House),Orono 2`' 9-21-89
Test hole location . Hole number , Datdhole was prepared
18 6
Depth of hole bottom_ inches. Diameter of holy inches
Soil data from test ho!e:
Dcpth,inches
Soil texture
0 -'14" Topsoil dark brown loam
14" - 18" Brown clay loam
Method of xratching sidcwall Kn i f e
Depth of univel it bottom of hole_ 2 inches
9-21-89 5:00pm 12
Date and hour of initial water filling . Depth of initial water filling_ inches above hole bottom
Method used to maintain at least 12 :aches of water depth in hole for at lca%t 4 hours Automatic siphon
Maximum water depth above hole bottom during test 6 inches J ~
Time j
Percolation
Time
interval,
lAcusurcment,
i Drop in water . I
rate. Remarks
minutes
inches
level, inches i
minutes per
inch
10.18
pref ill !
6
10:38
11:08 '
1-7/8
16.0 i 30 min
11:19
11:49
"
1-3/4 '
17.2
11:50
12:20
"'
1-11/16
17.8
i
f
� l I
I
t i
Percolation rate 3 17.0 minutes per inch.
CERT.#00627
PERCOLATION TEST DATA SHEET
Percola:ion :cat readings made by S-P Testing, Inc. o" 9-22-59 s carting ar 10 : 40
Awt
Test hole location 1560 Fox St . , (new hous leDnumocro _. Date We was prepared 9-21-89
Depth of hole bottoms_ 18 inches, Diameter of hole- 6 Inches
Soil data from test hole:
Depth.inches
0 - 8"
8" - 16"
Soil texture
Topsoil dark brown loam
Brown loam
sown strong
e
Method of scratching sidewall Knife
2
mrlh of gravc; in hottom of holm-r______.,._inchcs
9- ' ' - g 9 ^ r 12 inches above hole Nut=
Date and hour of initial wales'ial water filling -
Method used to maintain at ]cast 12 inches of water depth in hole for at lcu%t d hour Automatic siphon
6 •
Maximum water depth above hole bottom during test -- inches
I
Time j
! 1
Percolation
Time
inlaval. I
Measurement.
Drop in water
rate. Remarks
minutes 1
inches
I level, inches
minutes per
inch
10:18
pref ill
6
t
10:40 I
11:10
i 3-11/16 j
8.1 i 30 min
11:17
11:47
"
j 3-7/16 !
8.7 ! w w
11:52
12:22
3-5/16
9.1
1•
8.6 6
Percolation rate - +mutes per inch.
a
CERT.#00527
PERCOi.ATI'ON TEST DATA SIIEFT
S—P Testing. 9-22-89 s r 10:41 a.m.
Percolation test readings made by ��-3 • Inc.. o tarring a P.M.IAWf
,
Test hole location 1560 Fox St. , (new house �blcZAF 4 . Datcholc was prcparcf, 9-21-89
Depth of hole bottom 18 inches. Diameter of hole 6 inches
Soil data from test hole:
De^!h,inches
Soil texture
0 — 8" Topsoil dark brown loam
14"
Method of scratching sidewalt Knife
Gray brown loam
Brown clay loam
Depth of gravel in bottom of hole inches
Date and hour of initial water fii;in9 9'21-89 5-0 ta5� inttiai waterfiliin� 12 inches above hole bottom
Method u%ct' to maintain at least I Z inches of water depth in hole for at least 4 hours Automatic siphon
Ar
Maximum water Depth above hole bottom during test inches
Time
I
Percolation
T-me
interval.
Measurement.
I Drop in water �
rate. Remarks
minutes
inches
level. inches
minutes per
!
inch
10:18
prefill i
6
j
10:41
11:11
1-3/4
17.2 i 30 min
11:16
11:46
1-5/8 I
18.5 I "
11:53 12:23 1-9/16 19.2 1 "
Percolation -ate = 18 . 3 minutes per inch.
CZZZT-€00527
PERCOLATION TEST DATA SIiE,ET
a m. F
Percolation test reading—, maec by S —P Testing . Inc . on_ 9 — 2r�� B 9 swrting a� _ 1 a : 4 3 VP..z—
Tcstholeloc;ttion 1560 Fox St., (new house) ffoleDnumlr 5 ,D;ttcitolcwaspreparc�� 9—i1-89
' Depth of hole bottom 18 inches. Diameter of hole 6 inches
Soil data from tea hole:
Dcpth.inches
0 - 10"
10" - 18"
Soil texture
Topsoil dark brown loam -
Brown clay loam
Method of scratching sidewa:f Knife
2
Dcrth of Gruvci in bottom of hole inches
9-21-89 :�Opr 12
Date and hourof initial water fiIlinr cat o. initial water tiilinc inches above hole 5ottom
lethal used to maintain at :east 12inches of water depth in hole for at Icam c hours Automatic Siphon
6
.Maximum water depth above ho:e bottom during tc%t inches
i
Time Percolation
Time interval, Measurement, Drop in water I rate, Rcmarks
minutes inches I level. inches ! minute, per
inch
10:18 pref ill 1 6
10:43 11:13 I 5 ! 6.0 130 min
'. 14 11:44 j 5-9/16 6.6 ! "
11:55 12:25 + 4-7/16 6.8 "
•
i I
Percolation rate = 6.5 minutes. per inch.
I
CERT-000627
•
PE''.COLATION TEST DATA SHEET
22 —89 t .n�
Percolation test readings made by S—P Testing, Inc. 9 —
ten_ startinb a 1 0 : 42 .m.
-r.V,
Tc%tholelocatiori560 Fox St. (new house),P�.onurrnber 6. ,Datcholewasprcpared 9-21-89
Depth of hole bottom 18 inches, Diameter of hol,- 6 inches
Suil data from test hole:
Depth. inches
0 — 10"
10" — 18"
,me,hod of gcra:chin; sidewall Kn i f e
Soil texture
Topsoil dark brown loam
Brown clay loam
2
Depth of ,ravel in bottom of hoir inches
Date and hour of Initial water Gllin�' 9 — 21-8 9 �c ;d��t .Initial water !'i.iing, 12 inches above hulc bottom
Method used to maintain at least 12 Inches of water depth in hole for at least 4 hour.: Automatic siphon
6 y
--Maximum water depth above hole bottom during tebL—inches
Time
Tina interval,
mmutcs
Water remaining in
Mewwrement.
inches
test hole
Drop in water }
, levc!, inches i
Percolation
rate, Remarks
minutes per
inch
l
10:42 11:12
6
1-13/16
16.6 30 min
11:15 11:45
"
n !
IN w w
11:54 12:24
I
i
�
I t
Perco!atior. rate = 16.6 minutes per inch.
-PERFORATED
LATERALS
SANDY
LAYER OF STRAW OR
MARSH HAY COVERED
WITH RED ROSIN PAPER
f I/ " OR
PIPE ROM
3jIt_2i/, •
CLEAN BOCK
6' TOPSOILS
2"
PLUMP --A
O
CLEAN
l SLO
SAND AFILL
LOAM SOIL
.�
r
I,
1 11
J'.•1'i r''�� C'VERSION FOR
NO TES - SURFACE WATER
SE CT AS LEbEI a S aS POSSIBLE FOR THE MOUIID.
o 6R�qYF
EN Up
lE
2 REMOVE EIICESS VEC2:TATION. PLDYK DISK on 9ACKIHIR RA1QJ1
/ J ROYJ YEN THE SUFFNi SOIL f NAM OEE1 col
M40 � T1� TI
�7 CONTENT
ppI��S 4ESS TNW THE PLASTIC ppUMIV (SOIL K RASTIC f! IT WI KTOZILL1LEDD
I. ION OUIPII'fNT CO., H NG JCT �INTO �IIR N � i0 W.
W A PLASTIC CT!(R71
5 LUST. ONLY TRACK -TYPE EQUIPMENT FOR CI AISTR UCTING THE MOUIIO SO AS NOT
�• t/ 10 COMPACT THE OP WAL SOIL. 1Yyw�(, �Q�A
��A x 1 I % . THICRE WISTBE A AST 2 RTET Or NI� OR F%L SAIL LSTC� T -
/. • 11011 RATE SLQ.rER TKW 120 MINUT R INCH ANO NO f INN S
• .��•'.; MINuIES PER INCH, BEFORE PLACING
NIG I�THE LA OF CLELY SAID. �q1� y,
S IS CONS INCH
HN uCLE. N IF ITNCAN PASS THE RUI�AR�TEESST MTMfDNCRETE •S�O(ii
�:'- .. •: • K S THE 70P OF TH
lE WM SAND LA" AND Tfh MP OF THE 11p01 90 MIST 1E
\\r. Y •..:; y';:�:_:., CONSIRLICTEO
� " ai �'J: • . 1. w5TR1DUT10N PIPES ARE 0 NCN DIAAE1ER SPACED 40 WC►IES CENTER
�YNO CONNECTED TO A MANIFOLD IN THE CENTER OF THE ROCK KD. PIPES HwE
� ; • / -gICH PERFORATIONS DRILLED EVERY K INC
N�S AND POINTING OOMM/MIAW
U�E G NEw DRILL 91T T, AVOID BURRS NSIDE PIPE.
?�J Q NINE INCIES OF ROCK ARE PLACED UNOEII THE PEMORAT -0 LATERALS AND 2
V"_HES AFIOVE MR A TOTAL ROCK OEPTM 0( 12 M1CNE3
N
y 9 THE ROCK is FIRST COVERED WITH A LAYER Of HAY OR STRAW LM\ICN is THEN
ROS
COVLREO WITH A LAYER OF RED IN PAPS LAPPED i INCHES AT Tog SEAMS
���R/L-"10 AT I,EAST 6 rwrHES OF Lowy SAND 4OuLD BE PLACED OVER THE TOP OF T1 E
R I`iL ROCK BED
11 A 6•I14CH LAYER OF TOP SOIL. SHOULD BE PLACED OVER THE ENiSK MOUND SO
•1T THAT A CRASS COVER CAN E ESTABLISHED.
�12 CROWN THE SOIL COVER AT `EAST f INC 'ES IN THE CENTER OF THE MOUND
ABOVE THE RDCIL LATER 50 THAT HEAVY NAN WILL RUN OFF.
SLOPES OF THE DIKES SHCIULO E NO STEEPER fHAM I ON CLd ShcS
3• I ONSANDY SWLS
LAYER. DEPENDS ON THE AMOUNT Of QAK.Y
OAGEFiaw M5IM14 MILL 1
15 MAX1161UM EFFLUENT DOSE PER PUMP CYCLE SHOULD E NO MORE THE TA9LE
VALUES
16 MINIMUM RATE IS SHOWN N TABLE PIMPING HEAD MUST 9E
a0E0uaTE�OME ELEVATION WFFERENCE, FRICTION LOSS PLUS i'fYEET
FOR PEFYfORAT D LATERALS
LAYER OF GEOTEXTILE
FAP31C
GRASS COVER
SAND FILL—�
MAXIMUM SLOPE —_-.0—
? TO 1
'TOPSOIL ^�~
SUBSOIL U
CROSS SEC: 10 A - A
LOAMY SANU CAP
PERF,`RATED LATERAL
6 INCHES
TOPSOIL
CLEAN ROCK 24"
VED OR 3/4 70 21/2 INCHES
D SURFAC •' �• SLOPE
PIPE s -ROM
PUMPING CHAMBER
f
u
r— PERt-0RA7_D p --
LATERALS
i
a=D AREA, � .. I �' •�
r
i
nLJ
I
' I I
20
_ . INCHES' �' INCHES I �.
U�KE . �.. �0 FEET
__wlr Dr
MAX.
TOTAL ";IDTH --- . ,•'
P' AN VJ EYE
rt\�� r-RFORAT ION OF A PI-ER'FORN, = !) I_Al E- RAL
Grass Cover
—k—_
Topsoil
Layer of Geotextile I=ahric (yer
loamy Sand Layer ; of hay or straw covered with red
_ rosin a r)
C-
.zit�z 4�z
C
a s• `
Pere �► d Lateral ----Perforation Drilled
into Cap ;Near Top
n - : - - --/fit Least
L
«3A PIUS 4`
Drain Meld Roc! s _ ')f Rock I
. Perforatlons� Located at
Clean Sand LayerPoitom of Lateral
•l•
Original Soil Properly Scar..fied
Before Placing Sand Layer
C
Horizontally
12" t o '1 g e
LAYOUT- 01= PERFORATED FIFE I..ATET:AL5 17011
PRESSURE DISTRIBUT 101J 114I:ICUND
� - POF- r-arD PLASTIC PIPE
jj6
11 --- FL• I:F 11�i :i IUI:S `.�f�;C[_C1 :.0" OR ..60�� -�jF
GW CE»1 LR. FEr:coRnT IUIJ Pchf.
,- .•. , � '�' BE Me. � JAAt
- PLI-il CRATIOWS GtJ CO T TG1,l C1=
I-'LASTIC FIFE
V
1.4/.IJ1FOt D
(ALTERNATE LOCATION
��•; of PIPE' I• ROh't PUI�{P)
N
PIPE FROM
OF F�F;(" • PUMPING CHAMBER
WATER TIGHT a LOCKABLE ELECTRIC 13OX- --,,,.
PLUGS OR EL ECTRIC CONNECTIONS - - -- -
2" PVC CGNDIAT SCIAEDULE Go ---- J A-
MANH01-E_ COVER C14AINED F3 LOCKi_-D GIB S�'nCi_
SEALED MANHOLE RINGS
UNION-,
SEALED TANK COVF_R,,, f
PLA. -' )C ROPE OR CHAIN
�JI TH ANCI-;OI3
Af.ARM FLOAT ON S�PARAI E
11_I_(:1'RICA1_ CIRCUIT- -- I
_ START-LFVF1;_V_
_5HlJT_ Orf_i.:FVCL V
PUMP CON1'R0L FI..OAT----
REDWOOD, CEDAR OR
1-RCATED POST (4 x 4 m1n)
Al-l_ ELECTRIC CONNECTIONS
INSIDE I30X
-LOOP OF POWER CORD FCIj
SI.1 Tl_Ef�LNT
_ _1 FI NAIL -GRADE � . .
AT I-FAS-r 12"
[3L Low (313ADE
FROM POWE SUPP'v
fv!ADE
{`r \J ' -
�`- I'IPE IS LAID ON A UNIFORM SLOPE .=1ROfJ1
rUtJII' ST/kTION UP TO SOIL TREATf,/,FhIT AREA
FOR PROPER I,r^!NBACK
�- IF PIPE: AT TANS-. t4UST BE LOWER THAN
UNION 1-0 GI_T EI_L\'ATION FOR DRAINBACK,
A 1/4 INCH WEEP HOLE_ MUST BE USED
-. V,11T.P 1101 E
NOTES: 1=1_1=1:7I3ICAI._ WIRi- FROM POWER �UPPI Y
1,,UST NOT RUN OVER ANY TANKS BUT
Mt1S-T 13E LAID BESIDE.OTI_IER TANKS
t� AAND [ONG POSTE PLACED IN CONDUIT
i;
I
FLECTRICAI_ CORDS FROM FUMP AND
FI-ON] S MUST BE RUN I"HROUGH
CONDUIT. WidES CANNOT HAVE GROUND
CONTACT.
METAL
'OVER
CONCRETE
MANHOLE
RING
METHODS OF SECURIAG MA,"4I-IOLr COV,':"-.R TO PREVENT
UNAU'.-HORIZED ENTRY
PENCIL
MARKS -
MANH01—f_--
.S ` -. yf ��o.c .-y- �s�--►•S�C= --- ter' _') ' � •'•
INLET
,;• ;1,-s„ SCUM
OUTLET
•';' ' - OU-fLET I_1=VEl_-J v
SCUM CLEAR SPACE---:---.j. �_
. _ _ _ ; CLEAN OUT TANK WHEN:
N
IS W OR LESS OR
• _ == = =` —: —_ ___ __ __-__ _ =:_ D "W 15 12" OR LESS
// � �•..�..��-:....r'-��.:.�v.��._......_.:.• ;ram' .':'�!� �► � .
'' -- BLACK COLOR
SLUDGE DISTINGUISHES SLs IDGF_
?;;ti ��'::`_; :' :•:, _ _ .. _ �: LAYER FROM LIQUID
MEASURE SCUM AND SLUDGE ACCUMULATIONS
IN THE SEPTIC TANK