HomeMy WebLinkAbout1986-11-10 Septic System Design Report4
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SYSTEM DESIVI / O \v J
FOR ROiIERT WAADE CONSTRUCTION 0
C'RONO, MINNESOTA
11-7-86
1. I.ercolation Rate. Typa of System. �!
Iri:,ary site(holes 1-2) = 64.0 minutes per inch, Pressure mound system.
Alternate site(holes 3-4) = 108.0 minutes per inch. Pressure mound sys-
tem if ever needed, but shift toward holes 2 and 3 for better soils.
2. Proposed flow Rate. 100
& 4'tedroc-is 0 150 G.P.D. _'0 G.P.D.
3. Soil Treatment Area Needed. -7 s D
q(O,,M G.P.D. x O.83 factor for at least 12" depth of clean sand •/4'5 SQ. Ft.
or a rock bed 10 feet wide by fi2:5Tfeet long minimum.
4. Basal Width Requirements. W
For 64.0 perc. rate use 5.0 factor x 10 foot wide bed = 50 feet total or
40 feet downslope from the edge of the bed. This should amount to greater
than a 3: 1 slope on the downslope. Slope other sides at least 3: 1.
S. Distribution.
Distribution is to be by pressure through to 3 perforated laterals spaced
40" apart center to center in the 10 foot wide rock bed.
6. Septic Tanks.
Two septic tanks, each of at least 1000 gallons are needed. In addition,
a third pumping tank and pump are needed for the pressure distribution.
Iii alarm device is needed to warn of pump failure.
7. Aiditional Information.
All construction and materials must adhere to the provisions of the
C?ty of Orono. Runoff water should be diverted from the drainfield
area. and both the primary and alternate site must be kept free from
construction traffic and grading.
If any additional information Is needed, please contact me.
Sincerely,
PERCOR, INC.
'1�,�i r `ii
Mark S. Gronberg,
PGA certified
3-35
FEL'OLAT10N TZST DATA SKEET
Test hale location ,lff"I7 W -01"e- Holt attzber
Date test hale was prepared //- / -,Pa' Depth of hole bottoc, /,i inches.
Diameter if hale, ! inches.
Soil dsta.froc test hale:
Depth, inches Soil texture
_.. _. /l - if YFccw,, ,•,,, ,,,
Method o: sc:a:cY._-M s:dt'-;all
Dtpth of pea-si:ed grave: i:: be:tcz of }role, _ inches.
Date and h:-. c. _-.... _ -.a:er ji::_ng ,r•. .At
Depth c: ini;:a: .ate: fi:lir.g. inches above hole bottoz.
Mc--' '-d ::sed to -ainlz i. a: :east 13 inches of water depth in hole for at le
a i
4 hear s
Percolation test rcb'_.ngs : aue ay __,ege GGc%' - on
/- star tin a: 5'l a�—�-'� , v , � -
S fr .n. .axicra water depth o�•c bele
Witt)
durinE :art, .-:hes.
-1=e PCrtClation
I: ;r.,ersa:, ueas-,; es._n;, Drop in water rate, I Remarks
y:autes :hey � level, inches � minutes per {
inch I
9'71
=J
, Utz'
1(0
1 :11 v
S/.► 4.
I
1
fsrcc.a:i:h rats y:i. nir.utss par inch.
FEF--OLATION TTST DATA F17TT
1-35
Test I : I � 1ccativn •. , '%*„J-'. Hole number—
Date t -.' hole was prepared_ Depth of hole bottor-9 /r inches.
Diaret.!r .,l holes t , I . Snctu a.
Soil e4ita from test hole:
De;th. in:hes Soil texture
/4) -4;'
Metho-: if sc:&:Ch,*
ze, jre
of ;a&-s!:Od [rare! !n t-_:cz of hole. Inches.
Date ane hr-jr of -.�--tcr terl•..
:)@;):h -f initd.hl water f!:l!n;. 15 Inches above hole bottom.
Mc --'124 used tr a: lees: 12 inches of water depth In hole for at least
Perce-Luir.r. test :t6cings :LadL- :)y '0(6"o '2 an
J. rzar:lng at YAXimum water depth above hole bottom
P -M -
:n:4 -Vi':. xCasurez"n-, Drop in water
M.nutes level. inches
Percolation
rate,
minutes per
inch
Remarks
LIP T4
4: � , *'// '-, ?11 4
to
Perc, 'L.'OM rate - .1-0.0 :minutes par Inch.
Ir a.
1-35
AET,21AT1ON TEST DATA F"..T.•T
Test 1-:1- location r lir:, Hole number J
Datt t •►• hole vas prepared_ // -/-,!'d' Depth of hole bottoc, /f inches.
Diaret-!r of hole, < inchrs,
Soil !nta !roc test hole:
Depth. inches Soil texture
lie:hod of sc:atchinc ai.evaI: _1/J,�� Ir'.nrrP4F.
1h of ;ea-sf:ed fravcl :n '.c::e. of ticle, _ _'_ inches.
:z:f an_ h:-. cf _.._-:a: watts PnI //-5-.1,
Jew-:: rf initial :ate! ff:l:-_ / l inc%er above hole bottom.
Y.c::t2c.' used to :atntatn at least 1: inches of water depth in hole for at least
4 heuT +-!t'0-,,.•,_
?ercolaticr. test rca'.:igs cads oy .t, r on
r.:arz!ng of —A"� Ylxirrum water depth above hole bottom
.iatc
dur:ag ' a - .-------- -:: ica.
•-=e percolation
Xc.1f;:rcca., i Drop in water rate, i Remarks
`:...,.:es In --h. s level, inches c:r :ca per
Perc!'.a:ion rats • .1.0. 0 t).inutes par inch.
Cf
LO Y6
to
V
Perc!'.a:ion rats • .1.0. 0 t).inutes par inch.
5-33
PF.t.tOLAT1ON TiST DATA SKEET
Test aile location /r'Cf.• I Bole ousbes 3
Dau test ht le was prepared ,�/--/ -A6' . Depth of hole bottom, /,f inches.
Dia-.wte: •.f hole, c inch•s.
Sol: d%:u from test hole:
Depth, inches Soil texture
-11-12 /,.Ar"• JAn
Meth:d o: sera:crtnz s:dewsll __11wer fra.tn'Nr�.
Dtp:. ;ea-sz:ed Gravel in botto: of hole. = inches.
Ja:. .,_. C. .....:al :acct f::li;F S:60P'41 /1-S .1'c"
Jep:�'-
:n::. _ water f1i21:5, /: inches above hclt botto=.
te=atntzin at leatt 12 inches of tater depth in hcle for at :cast
PCtC:•1a1:P'. .t• --t rtad2ngs rade z� cn
a.a.
s:a:::ng at — �': S`/ Maxim= water depth 9bove hole botto=
:n:er •a' , !'casu:c=.�.^.:. Drop in water
l.:a :es. in:hci level. inches
i r
Z r/4-
4fS
'915
rate, I P.e:a-Vs
=:nuter per
inc`:
II'zq
/
Tsrcols-.loa sats • 96- C:; cinutss par inch.
5-35
I'M . COLATION TEST DATA SHM
Test —ile locatior. Hole uuzber- V_
Data t8s, bole was pTtpc-ed_ Depth of hole bottom. IX Inches.
Dlatwtr! 0 hole, (
Soil d.tt frr= test hole:
Depth. inches Soil texture
MOO. -d cf sc-&'Chlint II'dewall.
Dept!. of ;ea-s!:td Erave! !n
.to= of hole, inches.
Dat4 an� hc--r Cf ln::Ia. A:c?
ler I. c: 11 n I ; ! a 1 ':ate- f 1. *. 1 1. :-..- inches above hole bottom.
hczhod -.:std to =,aintai:' at !to -t 12 inz-hes of vazer depth in hole for at least
L hours. - 14 1
PertD.Itior. test T&Ae-nFs =if-' DY _&L—OL" L on
starting at J" �7/ Faximum voter depth above hole bottom
dur'.!-F *C.
rerrointion
C F c -nt Drop in water rate, I ROMATV5
level. inches =.Inutes ;)Cr
inch
44—
e
LEV—
1 -7 N-
i
Forcelstion fete /1_c' minutes PST Inch.
-i.ogz of Soil Borings 1_27
Location c. Project �1;�+�__ [•'�. ri'c
Savings nada by 11NA'1 Late
classification Systen: AAS -10 USDA -SCS X Unified other —
Auger used (check t»0): or Power _; clight _, o: Bucket other _
Depth, Boring=er !_ nepth, Boring numberin
2
feet Surface c'_evatior- feet in Surface cle•:ation
0 .— —� —. _ —__ 0 -_
1 —
2 --
3-
4—
S-
6-
7 —
8 --
!� l.�lt• [ otr�
Yet ntd 4/'0a
&,— COA,r•
End of Goring t: feat.
StandinS nate. cable:
Btesent at _ -_ — feet of cepth,
bouts after both;;.
tint present in borir.F hole
mottled soil:
Observed at 3. 5 feet of de;�th.
Not present in b)_in;, hol,!
Obse:vati_ns cn-
IME �—
2 —
3 —
7 --
8 --
.nd of borini, at — feet.
;tardin8 stater table:
'resent at feet of depth,
hours after I+crinfi•
hole
lot present in borin _�_-
tottled LOU:
3bserved at -?. O feet of depth.
trot present in borini hole _
Obscrvattons and coT:tc:tto:
I n of Soil Borings B-27
o: Project
Location
Borings made uy� 1 `{
Data
Unified ; outer _-
—
-'n10 ; USDA -SCS
Classificat_e ; — — t
F-i;;it.
-
or Bucket.,; other _.
Auger used (c: ec't. t' -'O) : ti: nd ,•ZC . or rover
_.,
----
yam----
ic"th,
Horin{: nurher
Depth, Boring n -inner _---=�-_.
in
Surface ele•:ation
in Surface e:c•:cticn -_.. — °eet
fact
o
o -- _ •
It[A�4' t JHM
i�—r+
1 -�
-
1 —
/:I:. r r',',r- •air:
�.. .,:... ill -
2— -
End of boring
Standing Water tab'_e:
Present at feet of dc}•:.t.
t.ot::s after borir.;..
,,,at present in boring; hole _ .X
mottled soil:
5 feet of depth.
Observad at z__
llot present in i•crinr hole
obsetvaticns NYc co:=cnt::
O
nd of nor i::r feet. at ,_�
Standinr. Water t.^•blc:
:resent at feet of depth,
_ hours after boring•
llot present in borin,^. hole,
mottled coil:
observed at feet of ,lcptlt.
t.ot prCse:%t in borinf: hole
t :nd co---cntc:
Obscr•�at.on:
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