HomeMy WebLinkAbout1986 septic system design and test reportr
SYSTEM DESIGN
FOR GARY RODERICK
OF LOT 2, BLOCK I, ABINGDON GLEN
ORONO, MINNESOTA
7-28-86
1. Percolation Rate, Type of System.
12.6 minutes per inch, Shallow Trench System.
2. Proposed Flow Rate.
4 bedrooms @ 150 G.P.D. = 600 G.P.D.
3. Soil Treatment Area Required.
Use 1.67 percolation factor x 600 G.P.D. = 1000 Sq. Ft.
4. Size and Number of Trenches.
Four trenches 3 feet wide and 83.3 feet long = 1000 Sq. Ft. These trenches
would be spaced a minimum of 7.5 feet apart center to center and be about
one foot deep in the natural soil.
5. Drainfield Rock Needed.
37.0 cubic yds. of rock is needed to have 6:^inches under and 2 inches over
a 4 inch distribution pipe.
6. Septic Tanks.
Two septic tanks, of 1000 and 750 gallons minimum are needed. In addition a
third pumping tank and pump are needed to reach the higher drainfield area.
The pump should also be equiped with an alarm device to warn of pump failure,
7. Additional Information.
All construction traffic must be kept off both the primary and alternate
drainfield sites and no grading may be done on the alternate area at any
time. All runoff water should be diverted from the drainfield area. The
original drainfield areas tested are in the proposed house location, so
these new areas were tested farther up on top of the knob.
If any additional is needed, please contact me.
Sincerely,
PERCOR, INC.
Mark S. Gronberg
PCA certified
ygKCOIATlOW TEST PATA (BEET
E- E5
Test hslc loettion Z^rZ.Aiopt / Cl<h^Bole Bucibcr 'S.
I>4tt tttt holt wtt pttPTtd
Sltaetcr of holt, ^ Inchet.
Soil dttt-froa tttt holt:
Depth, Inchet
., Depth of holt bottoB. /¥ Inchet.
Soil texture
-/y ciJi^
Method of tcrttchine tldewall //aue Tr^4rr//eA.
Depth of pea-sized gravel In bottos of hole, 2L- inches.
Date and heur of initial water filling "7:^/9
Depth of initial water filling,Inches above hole bottom.
Method used to aaintain at least 12 inches of water depth in hole for at least
4 hours _ _ _ __ _ _ _
Percolation test readings tirade by
starting at 9iS*/
(date)
during test, _ _ _ _
jPa/i iTsfri.
ga.aiD
—p.B.KaxlBuo water depth above hole bottos
inches.
Time
7ise
Interval,
Minutes
Measuresent,
inches
Drop in water
level. Inches
Percolation
rate,
^nutes per
inch
Remarks
1 !i $ 9 f\O
IQiOCi 3H5 «SS/
loios 70.2 5/ V.<0
\OUO ^ t ^<R.dO/ (i.o o t »«••»/ T/v
1 7 i A rv?/^TA7<S.D ** f f •- f •.
/<j:z3 1 ^
|Ol3o C7.75/?.^'/.Z5
/a',^/0 rs«»ih./o.'75y azs 'i.lS l .2<(
l6iS^,1 '
10^*5 3.^
9 0.2-5 7-4)^
If 11 K.:-li.b /Z«5 / • 3 5
h.»zf 1/7/7.2^/3.75 n.i5 I.MZ kW-.-
idi75 /7.D >. *i 3
It/ih.0l>l'Z.5 . 7.D Jr.t/3
lull' •'74)7.*75 JnM—-tz——1 ^ f ^IDUV
fO
1 U*S / or*
Qns
■ I*
ttf.fCT lai^BBao
nay
Ptreoltt
\S^r^
ion tttt • ^i £ Blnuttt ptr loch.
B- BS
mCOUlTXON TtST BATA BHllT
Tttt holt ioettiea /f/ar*r / Bolt nuri)tr ^
Dttt tttt holt vat pttptrtd . Depth of holt hottea. 2a Inchet.
Dltattcr of holt* € Inchet.
Soil datt.froa tttt holt:
Otpth, Inehtt Soil ttxcurt
/f/ jtrit fdjfivx.
AAJK'e
Method of acratchinR aldewall //filf rr^j-rc/ffH.
Depth of ptfslzed gravel In bottea of hole, Z.
Date and hour of initial water filling
Depth of Initial water filling,
_ inches.
Inches above hole botcos.
Method used to aaintain at least 12 inches of water depth in hole for at least
A hours ’ _ _ ___ _ _ _ _ _ _ _
Percolation test readings cade by
starting at S€5IBRV
(date)
during test.
'^.a*MaxlmuB water depth above hole bottoa
inches.
Tiae
Tiae
Interval,
Minutes
^!S6i
iOjSUjTwr
3C? rvOL
9^ »S.
Measurenent,
Inches
%
■7.S2>73.15
S.V
Drop in water
level, Inches
3.0
1.15/373 3.5
Percolation
rate,
^nutes per
inch
to. ^2»
« ,s IL
&<
ro.&i
9^.5n
Renarks
Pereolatien rate rf* ^s6 Blnutee per inch.
rERCOUTlON TEST DATA fBSET
D»DS
Ttit hdlt ioeatlott LAT‘7.^ /f/artf / . Ait/tJCfljtJ Bole ou^er^
Detc teit hole ves ortpered
Dleaeter of hole. € lochee.
Depth of hole bottom. 20 lneht«.
Soil dete.from teit hole:
Depth, Inehee
_ _ _(2 juL_ _ __
Sell texture
/aaja
/2
/2'Z^
Method of eeratehlne gidevall AJaf.C Tri>d-rf
Depth of pea*ilsed gravel In bottom of hole,Inches.
Date and hour of initial vster filling 7:^^ ^a\ 7-2»«.f/r _ _ _
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 _ _ ___ _ _ _ _ _ _ _ __ _ _ _■ _ _ _ _ _ _ _ _ _ __
Percolation test readings made by
starting at 9.-SS
(date)
during test.
“p.m.Maximum water depth above hole bottom
inches.
Time
Time
Interval,
Minutes
ia^»
mss
Measurement,
Inches
S.C)G/ 3^00
Drop in water
level. Inches
3.75-
3T^
T7.g /
msSiI ^.75
3* >
3.0
Percolation
rate,
minutes per
inch
3.00 kcw A
i 51
.00 roi;!
Remarks
FereoUtlen TSte •minutes per Inch.
#■
't.;:
5fV ■
-'v/'" -
Loga of Soil Borings
Location or Project ^/y/^V /^^ Dr^A*tC'/'<f
B-27
Sv
K' •'■ ■
i'
_ _ _ _ Dat. -y-ZU-f-/.
Classification Systen: AASHO T~USDA"SCS t tJnlfled ; other
Auier used (cheeic two): Hand or Power _; Plight_, or Bucket X : other
Depth,
in
feat
1:~
2 —
•4
5 —
6 —
:7:~;
« —
Boring nunber
Sorfaee elevation
BK clny L^jin
BL tic K Lfion
/leD.Ba.cL/fyL^^f’l,
. . . •
LTfe BA, cLhy LoHt\
fioTTleD
c.LrtyLoJfn
End of boring at feet.
Standing water table:.
Present at • feet of depth.
hours after boring.
Not present in boring hole ^ .
Hottled soil:
Obaervad at 4^.5’ feet of depth.
Not present in boring hole
Msorvaitions and eoaments:
Depth,
in
feet
Boring nunber 7
Surface elevation
BImc K
1
* •BA • c Lhy Lit/ih
• , - ■ ' ■
2 —
3 —
4 —-------------------■ i ^ ^ . >■' ^ ■ V ; . ■ - , •
/t^vuo Life
5 —CL»y
6
Lire -B/i% &dsy
7 —Lo^H
8 —ffocK
End of boring at 7 feet.
Standing water table:
Present at ' feet of depth.
hours after boring.
Not present in boring hole ^
Mottled soil: '
Observed at ^ foot of depth.
Not present in boring hole '
Observations and coigaonts:
•0
l: ' ^
O
^ V