HomeMy WebLinkAbout1986-04-29 Septic System Design ReportSYSTEM DESIGN
FOR PAUL SKOOG
OF LOT 3, BLOCK 2, RINGERSWOOD
ORONO, MINNESOTA
4-29-86
1. Percolation Rate, Type of System.
73.8 minutes per inch on the primary site and 78.3 on the alternate site.
Pressure mound system on the primary, and on the alternate if ever needed
there.
2. Proposed Flow Rate.
3 bedrooms & 150 G.P.D. = 450 G.P.D.
3. Soil Treatment Area Needed.
0.83 factor when using 12" of clean sand under the rock bed x 450 G.P.D. = 375
sq. ft. This is a rock bed 10 feet wide by 37.5 feet long.
4. Dike Width Needed.
The basal width factor for this soil is 5.00 so the r,:quired basal width is
5.00 x 10 feet = 50 feet. Subtracting 10 feet for the rock bed and because
of the flat ground, the dike will need to spread out at least 20 feet on
each side of the bed. This is more than a 4:1 slope so it is adequate.
The ends should slope at 4:1 or 12 feet out from the 3 foot high mound.
5. Distribution.
Distribution is to be by pressure to 3 perforated laterals located in
the 10 foot wide rock bed.
6. Septic -anks.
Two sep is tanks, the first of at least 1000 gallons and the second of at
least 74 gallons are needed. In addition, a third pumping tank is needed
to house the pump and meet the requirements for reserve capacity and dose
size. Ai alarm device wil! also be needed to warn of pump failure.
414 A e
7. All coo,;Tructionymust be kept off both the primary and alternate drainfield
sites. .All materii.ls and construction must adhere to the provisions of
Individual Sewage Treatment Systems Standards (WPC-40) and the City of Orono.
If any add'.tional information is needed, please contact me.
Sincerely,
PERCOR, INC.
Mark S. Gronberg
PCA certified
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PERC01.ATIDN TEST DATA SHEET
Test hole location_/} (1 L ,S K p p r, Bole number
Date teat hole was prepared y 2 4 f( G Depth of hole bottom,5-
s.
Diameter of hole, inches.
Soil data -from test bole:
�epth, inches Soil texture
'Le.thod of scratching sidewall
Dtpth of pea -sized gravel in botto= of hole, 2 inches.
Nate and h,-ur cf initial :titer f:11ing �-/ —Z ?6 C1
Depth c` initial water filing, UL /--I3 inches above i:o_e bottom.
Mc thod ::sed to maintain at least 12 inches of stater depth iu i,ole for at least
G hours fc %► L L
Percolation test readings made by 'n Cj-Iu%/r p(,, on
starting at 0 a.m. Maxim:m water depth above hole bottom
(da:e)
during :est, / inchrS.
=ime i j
:iye interval, ! Measurement, Drop in water
Minutes •.nches level, inches
I I
Percolation
rate,
minutes per
inch
Remarks
L
00
t"I 0
^
li
C 7
to
Percolation rate / 2 Z minutes Per loch.
2- 3S
MCOIATION TEST DATA IBM
Test hole location_p# vL Bole number
Date test hole was prepared_ !�/- 2 L �(� Deptb of hole bottom, / S_ inches.
Diameter of hole, _ a inches.
Soil data•from test bole:
Depth, inches Soil texture
0_9 1. 6L'tck '10AM
1p -/ Z _,�SL��,rC GAF v c L, v
/ Z ,J5'
Method of sc:atchinq sidewall-SC /tA/ c %7L--R
Depth of pea -sited gravel in bottoz of hole, Z inches.
Date and hcur cf initial water filing 21�—PC ----- // Oy /M
Depth cf initial water filling, 13 inches above hole bottom.
Mcthod used to maintain at least 12 inches of water depth in hole for at least
4 hours ?E f -/ L L
Percolation test readings made by N D /U C-1? 0 A."hgg6'_ on
starting at 2 .O3 a'm' . Maximum water depth above hole bottom
(date) 1f/
during :est, /z inches.
!! 7ime {
Time i interval, MeasurementDrop in water
! Minutes i inches level, inches
' I
Percolatic.l
rate,
minutes per
inch
Remarks
Low
L
00
o
'
2.33
3o rl1v
'
/&
3 0
/f to
q
i
0
,
Z p
Percolation rate v — 2 y (,) minutes per iseb.
3- 35
TERCOIATION TLST DATA MW
Test bola location P,# U L S k O o G- Bole number .3
Date test hole was prepared U — 2 6 — $ L Deptb of hole bottom, k r inches.
Diameter of hole. C,_ inches.
Soil data from test bole:
Depth, inches Soil texture
ry iy BLAck 1-04 `1
DLi-L'sAt GL0V
8,4_ ¢S4v- CL*,4 gv77<<d
Method of scratching sidewall SCE
Depth of pea -sized gravel in bottom of hole, 2 inches.
Date and hcur of initial water filling d-/ 2 (0"Pd q. 30 '1-M•
Depth c_` initial water filling, _ / 3 inches above hole bottom.
Mcthod used to maintain at least 12 inches of water depth in hole for at least
4 hours - (- J L L•
Percolation test readings made by ,�j�/I/ �r/i�0/V��%TG on
��-/-26-946 starting at p/ p:ID: Maximum water depth above hole bottom
(date) S
during zest, inches.
time I
Time i ;nterval, Measurement, Drop in water
' Minutes i inches I level, inches
percolation
rate,
minutes per
inch
Remarks
„30 ,
uLL
0 i
-u L
00
1121, 1.L
Z.0
3
3
S-
(o
G- -
3. O
3.3
.32
�V
aXse
L
Percolation rate S!, SS minutes per ieeh.7rY(r-, 7, % �+
� 0Zs 'j
yc
s- 3s
FUCOI.ATION TLST DATA $EMT
Test hole location_ p/f L/� Sk 00 C. sole number
Date test hole was prepared L/ - Z - k1 Depth of bole bottom, inches.
Diameter of hole. _A inches.
Soil data -from test bole:
Depth. inches Soil texture
0-1 o /3 L.*e-K jo A-M
u / 3
/ 3 /S_ -4 A e k c L
Method of scratching sidewall _4 '1-LA1_ / G 1 ,j=.<
Depth of pea -sized gravel in bottom of hole, inches.
v
Nate and hcur cf initial Later filling `
Depth cf initial Later filling, / 3 inches above hole bottom.
Mcthod used to maintain at least 12 inches of water depth in hole for at least
4 hou-s kIt--/=; L L
Percolation test readings trade uy 'Pok G'/f .Oyh on
L/- 2 G - kjC starting at Z a.m• . Maximum water depth above hole bottom
(date) P.
during test. / inches.
i
time
iime I interval. Measurement. I' ax- i-.: -,.Pater
':inutes i inches 1. ::::•hes
i
Percolation
rate,
minutes per
inch
Remarks
/S
.ov
3
--
D
os-
V3 G 3
3e)
�-
X G-
'1
V o
Tc s
.qIf c'r
T4 c-
i p-
�� ys
of L c,,A S
Percolation rate - 30 sioutes per Lech.
Logs of Soil Boringsu-18
Location or Project NuL -0O6-_ [tAS tva00
Borings made by Wopi &,Powbor►t;-GLerza tiAaA+6zUe.. Date
Classification System: AASHO ; USDA-SCS X ; Unified other —
Auser used (check two): Hand ,', or Power _; Flight' or Bucket: other
Depth, Boring number � Depth, Horinp numberin
feet Surface elevation feet in Surface elevation
n - n — --
2 —
3
3-
4 --
5 -�
6 —
7 —
. 8—
RLhck L.oAM
QLi'vE Q R. GL,4y
M07TLCD LiT-GAcyF-
L3 rz c. LAy I-oAM
Hom eD L i7C OR,
C. L /r y L a,4 }1
End of boring at S feet.
Standing water table:
Present at y1 2 �/ feet of depth,
2— hours after boring.
Not present in boring hole
Mottled soil:
Observed at 32 feet of depth.
Not present in borinv hole —
Obsvrvations and comments:
rr
1 -�-
�r
32
3e
4 —
5 _r
6
7 —
8 —
13Lnck Loit/I
/3LA-CR c LAY
OLt v� aR C L,4
^f1oTTLaD Liu G-/�Ey9-aR
cL4y LoAr1
mo771oD
L i T£- GAey j�-BR GA,T
cLoy i-,PjM
End of boring at S— feet.
Standing water table:
Present at feet of depth,
-- h-YYYouurrs"' after horinp-
Not presen, in boring hole
"tottled soil: r
Dbserved at 3 2 feet of depth.
Not present in boring hole
Observations and comments:
4'
•- 35
PERCOLATION TEST DATA $EMT
XI-I"
Test hole location PA v (, S1 e ad G` Bole number
Date test hole was prepared - 2 (v - L Deptb of hole bottom, /.5 inches.
Diameter of hole, �_ inches.
Soil data from test bole:
Depth, inches Soil texture
O -- /O B L &C k LOAM
iv /3 1 8L,*ck r_L,*4
l ►� OL9R_ G L/1Y
T
Method of sc:atctinq sidewa.l _.SC /j/i1C CI?
Depth of pea -sized gravel in bottoz of hole, 2 inches.
Date and hour cf inl:ial water filling LI-24- k4 J . '-5/4m
Depth c` initial water filling, / 3 inches above hole bottom.
Mcthod used to maintain at least 12 inches of water depth in hole for at least
6 hours JI e F/ L L
Percolation, test readings made by D
�-�- ? 6-JV1, starting at 24 0
.m.
(date) YJ
during :est, _�4 _ inches.
on
. Maximum water depth above hole bottom
-me '
,.me i :nte n•al, Measurement, Drop in water
I ':inutes i inches level, inches
Percolation
rate,
minutes per
inch
Remarks
00
- L L
11.30
i
3o n;,u
s 3
80
7
/Z 0
TZ
0
Percolation rate __ slautes per iseh.
rox Z-i� o4Es
!- 2S
PERCOLATION TLST DATA M=
A` T,
Test hole location All 0 0 6- Sole number 2
Date test hole vas prepared y - 2 G - k 6 . Depth of hole bottom, /S inches.
Diameter of hole. _ 6 inches.
Soil data -from test bole:
Depth, inches Soil texture
G - ► 7- QL.*ck L oArt
Method of scratching sidevall SG///j7cG G/Z
Depth of pea -sized gravel in botto= of hole, ' inches.
Date and hcur cf initial wager fil1in; L/— 2• %— kL 1Z, M
Depth cf initial water filling, / 3 inches.above hole bottom.
Mc thod used to maintain at least 12 inches of water depth in hole for at least
4 hours fie /f�/ L_L.
Percolation test readings made by
L/- 2 G- P4 starting at 2 a.m.
(date)
during zest, 2. inches.
/'%li—
on
. Maximum vater depth above hole bottom
� - ise
Time i ;r.ter<al, Measurement, Drop in water
Minutes I inches level, inches
Percolation
rate,
minutes per
inch
Remarks
ov i
L
/,30
L�-
1,30
4#4T;4.1 -11L
2-11
6
30 r;N
Jr. 71, —
Percolation rate a 17 1 y minutes par Itch.
s- 3s
PUCOI lTloN TEST DATA fElZT
AL T,
Test hole location_ P* V L S R 0 0 G- Noll number 3
Date test hole was prepared y — Z & — Y 1,, , Depth of hole bottom, 113 inches.
Diameter of hole, _6 inches.
Soil dats.from test bole:
Depth, inches Soil texture
rJ — 6P L? t L a,# Y- 1
z. LL oc_k
Method of scratc} inR sidevall _ .S'CMTe- /),
Depth of pea -sized gravel in bottoz of hole, 2 inches.
Nate and hcur of initial water filling y-2 —k(
Depth c: initial water filling, / 3 inches above hole bottom.
Mcthod used to Maintain at least 12 inches of water depth in hole for at least
4 hours R17 rl L L
Percolation test readings lade by D D AI on
Z1s— Y�s a.m.
L� — starting at .m. Maximum water depth above hole bottom
(da.e) S
during test, inches.
mime
Time i inter al, Measu:eme:t, Drop in Water
`minutes i inches level, inches
'.
Percolation
rate,
minutes per
inch
Remarks
9,90
l� 6
1. O
t�
3D
0
3
3vh 1ti
,, „
Z v
ff�
y ,Or
ib
Percolation rate 0 _ / G sinutes per Itch.
s- 3s
TEEWOUTION TEST DATA SMMT
11111111110
Test hole location A441 L Sk000 t- tole number ALr
Date test hole vas prepared �,/-2�- �,L Depth of hole bottom,_�I inches.
Diameter of hole, � inches.
Soil data -from test bole:
Depth, inches Soil texture
L L olf M
Method of scratching sidcwall -5'6-1?/i 7-G Az-x
Depth of pea -sited gravel in botto= of hole, 2 inches.
Date and hc::r cf initial water filling L/ - Z `- k4
Depth cf initial water filling, f 3 inches above hole bottom.
Method ::sed to maintain at least 12 inches of rater depth in hole for at least
4 hours /1 C%/ L L ,
Percolation test readings made by O
2 G-- 9-G starting at Z /3 a.m.
(date) .m.
during test, �0 3 SV inches.
Z'
on
. Maximum water depth above hole bottom
j :i.me , �
Iime i Interval, ' Measurement. Drop in water
' Minutes i inches level, inches
' I
Percolation
rate,
minutes per
inch
Remarks
uLL
30
Rr/ L -►
3 v f7/Ai
�3:
y0
q
3ey
0
Percolation rate • �6) alautse per lath.
• Las of Soil B�ori�nngs
1i-18
Location or Project PAUL
Borings made by _po/t, GR aN P eR,;. z=AW &vPo,V�,OP Date L/- Z G �•�
Classification System: AASHO ; USDA-SCS _; Unified ; other _
Aup.er used (chick two): Hand L� or Power _; Flight _, or Pucket other
Depth,
in
_feet
n —
1 --
2 �-
3Z —
3 —
4 —
5-
6 —
7—
Boring nur-her 1L T
Surface elevation
/31- 0L/4 L
/31 fe-A c L 4y
0Li'vc 13A. cLAv
,y o77LeV L iT<' G/lCy
%` IR, c L A y
End of boring at -- feet.
Standing water table:
Present at ZS d feet of depth,
2 hours after boring.
Not present in boring hole
Mottled soil:
Observed at .32 feet of depth.
Not rresent in boring hole
Observations and comments:
Depth,
in
feet
0 —
1
Boring. number IL TZ
Surface elevation
OLh e-k L o ri
0Li1,e6R.C- AAY
IfoTT'LLo Li7e ,6R.9-
GAEY c L/fy Lo4M.
End of boring at !!z 2 feet.
Standing water table:
„
Present at 2 9 feet of depth,
hours after boring.
Not present in boring hole
Mottled soil:
Observed at _3_ feet of depth.
Not present in boring hole
Observations and comments: