HomeMy WebLinkAbout1990-09-19 Septic System Design1
SEPTIC DESIGN
----------
and
PERCULATION TESTS
For
Jim Egerdal
1620 Silver Bell Road
P,ochester, Mich 46306
Site Locations
201`: Collin Drive
Long Lake, MN 53356
Prepared By
P, & D Soil Consultants
Cul -�gne MN 55322
(:612 ) 466-2667
M.P.U.A. Certification 11756
Sept •-tuber 199, 199!:
R & D Soil Consultants
Randy and Donald A. Schneewind
11585 110111 SI. Cologne, MN 55322
Septic System Perk, Design b Installation
Phone: 466-2667
Mi nnrscA. a Pol 1 ut i c'n
C� �ntr-- -1 Agency
State Certification #738
September 19, 1990
Jim Egerdal
1620 Silver Bell Road
Rochester, MI 4e3o6
PE: Soil percolation tests and
Septic system d -.-sign for ; 2''1(;C'Alin Drives
L-Drng Lake, MN 55.3.756
We were retained by Mr. Eiger -dal to condu-_t tests f)
this property, in orrIer t-, provide critcri a for the design and
installation -nf an iridi �i-lual sanitary =_•_'..'age f reatrrient SiySterrr to
Handle the sewage fl -+..r g -aerated by water -use appliances within a
single family dwelling.
Pr oc edur e
A total of four (14) Foil liercolatic_n to=_t., wer•�- p•_rfc_rrrred on
September 17, 199x;' ai a r -presentative at -E -a to the south amid west
of the existing dwelling.
In addition, four 4.4" soil borings were di ill,;�d with a 211 i.d. x
3 1/4" o.d. Hand aug: r to '_hec►, for the h_'siti _'n of the
water table and to illerrti iv the Underlying sceil types. Cocatioil
of tests grid borings are ;flown on the site plan.
The percolation testes were= performed in accr-ordance. with the
provisions of "Minne�vta I-ollution Control Agr-rr•_y F'ules and
St and.ur us Cha};.. � % 7'.j}?�;'. " The per r nl at i oto test-, h.
_1eS were
drilled to a conventional depth of*4 in..hr': ;.h a 5" i.d. x 6"
'-'.d. auger. Two inches uea gravel wer•:• placed in the bottom
of each hole to prevs-nt s' or i ng. Water- was then added to thr
test holes and r. pierrished as ne•.essary, maintaining a 12 -inch
head of water over the bo1-tom. After a period of saturati':•n,
each hole was refill • d t- a 6 -inch head f wat. r c.var the b� Ott _,w.
and thA per•=c•lati n i ests '__rimren'.ed.
Egerdal September 19,
199:,
Page 2
Percolation Test ReSUl is
------------------------
Penults of percolatic-n tests at
holes P -1,P
-2,P-3 and P-1 are shown
as observed. Perc01,7.tion rates
in rfaf%kt-i�S per inch are
indicated
as shown below:
P-1 hole P-2' 1101 a
P-3
1101 a
P-4 hol e
20 mpi 16 rnpi
19 mpi
23 mpi
Primary Site - IR mpi
Sec=ondary site - 21 mpi
Soil Borings (prime!ry site)
------------
B-1
B-2
Sandy Loam - 46"
Sandy
Loam
34"
Yellow clay 46 " - 52"
Sandy
clay
34" - 506'
Sand 5 - 6-'"
Sand
5w" - 621#
No Mottling observed
N.-.
mottling observed
(secondary site)
B-3
B-4
Sandy Loam 34"
Sandy
Loam
- 32"
Silty clay 34" - 38"
Sandy
_lay
- 48"
Sand 36" - 6011
Sand
48" - 60
No Mottling � �b ser vad
Mottling at
55"
Egerdal September 19, l99i; Page 3
System Design
-------------
The design base is a Typ.a I. 3 -bedroom `•rsi dere_ a with an
average percolation a;,e .-.f 18 mpi..
3 -Bedroom Type 1 Residence
----------------------------
3 bedroom x 150 gal. Type I home = 45o gal l � Win=_ per day (:gpd )
450 gpd x 1.67 sq ft per gal. per day x .8 = 6,..,2 square feet of
Tankst 2 - 1,000 gallon pre -cast tank(s) dr-ainfield is required
NOTE; if exisking tanks meet all codes when inspected
they nay be used with the new system.
Tank(s) must be installed level, 6" inspc-ction pipes must be
installed verticla to tanl:: at both baffles and in the center
manhole.(nota; tanks should be pumped every 2 years) Schedule # 4,::.
p.v.c. pipe must be used between house acid inlet to tarq-., and
between tanks if there is rrsore than one tank.
Trench construction must t..: shallow and fallow the contour of the
slope (note; contra_+or shoot elevations tc- obtain the
contour). Bottom of dra.infi eld trenches must be level frc-m dr, -,p box
to trench end. Insta.l.l 1: -inches of 1 1::_' - 2 inch washed binder
rock below 4 -inch dr- in t� le with 2 - 4 inc=hes of rock: -:-r the -
tile, 4 - 6 inches of hay :over over rock: and backfilled onate;
instead of hay a geo-textile fiber may be used). Trench depth below
existing grade will nary from 16 to A20 inches. See site sketch for
elevations. The Plastic limit of the sail crust be acceptable_- in
--nrder to work soils.
A vertical inspection Pip- at least 1 1/2 in%hcis in diarrsrter shall
be installed in each drainfield rack layer at the end of every
trench. The inspection pipe shall be located at an end opposite frrl,
where the sewage tanl: effluent enters the roct:: layer. Tile
inspection pipe shall hay.- 2/8 inch, or larger, perforations spay=ed
vertically no more than six inches apart. At least two perf,:rations
shall be located in the rack layer. The inspectic.n pipe sliall
extend to the bottom of the rock layer and shall be capped flush
with or above finished grade.
A water meter can be installed to insure the actual water use does
not exceed the disigiied capacity.
Egerdal September 191, 1999 page 5
GENERAL
The contents of this design report are to be applied to the property
listed --reprints or data for other application only with the
permission of Randy or Doti Schneewind.
The soil conditions �,nd p •-r,_ of at i on rates have been established
the test hole locatic-tis only. There may be variations in soil
stratigraphy between and -Around borings, ar.d i rater pol at i -n and
extrapolation of the results is not warranted.
The boring holes and test hales have been bas=k: -filled and marked
with flags. Settling will occur after a period of time; fill should
be added again to av-:-.id the holes from be,_oming a hazard.
PEFERENCES
note
-----------------------------------...-------------lot reap not drawn
to scale; elevations
and measurements are
estimated due to lack:
of survey.
Heine Sewage Treatritent
University of Minnesota
Auriculture Extension Service
Roger E. Machmeier
Extension Engineer
and
City of Orono
System Ordinancr
and
Minrresr.ta - til lution Control Agency F:ules
and !itandar.:i. r7hapter 74e(.1
If you should have quest i -_ms or need further i n f r Dr neat i on, you can
ccmta-=t staff at the City of Orono, or cc-ntact us at your-
conveni enc e.
S' M=erely,
S
R. & D Scil Consultants
NOVSLJ
I
I
o jQ
�-M P11fi• ° Q
j � 1
elk %OA
I ti o�'•� 0�3
zo• +
L STAB'
,4 yoctirc-4
-mmm
T11N� C o
NOT M
co
r Z
INDIVIDUAL SEWAGE TREATMENT SYSTEM WORKSHEET
FZnw
A. Esti `ed ! %tso gpd
(Se# ? or I-3,4,°1
or measured gpd
,SEPTIC TA -1K VOLU.tiSE
H. Z- /h00 gallons
(See -C-3 or C-5)
S211A (Site evaluation data)
C. Depth to restricting layer •
feet
D. Maximum depth of s stem
C - 3 ft �� feet
E. Percolation rate /B MPI
F. Soil treatment area
sq ft/gpd (See D-6, a-29)
T -N .H BGTTr1M R A
H. For trenches with 6 inches of
rock below the distribution
pipe:
A x F x _
sq ft. of bottom area
I. For trenches with 12 inches of
roc% *--.low t::e distribution
pipe:
AxFx0.8-450xI. hTx
0.9 - (gQZsq ft of bottom area
J. For trenches with 18 inches of
rock below the distribution
pipe:
A x F x 0.66 - x x
0.66 - _ sq ft of bottom area
K. For trenches with 24 inches of
rock below the distribution
pipe:
A x F x 0.6 - x x
0.6 - _ sq ft of bottom area
AaEA
L. For seepage beds:
1.5 x A x F- 1.5 x x
- _ sq ft of bottom area
ROCKyOL•C1:.'-. IN CU rT
M. Rock depth below distribution
Pipe plus 0.5 foot times
bottom area:
M - ( { + 0.5 ft) x Ez_ -
QQ_ticu ft
ROCK VOLUME IV
N. voluire in cu ft divided by 27
H + 27 - cu yds
qQZ- 27 - M.Ycu yds
ROCK WEIGHT
O. Cubic yards times 1.4 - tons
N 1.4 - tons
x 1.4 - _! tons
DISTRIBUTION
(Check one based on slope)
Bed (less than 6% slope)
TrePches
Drop boxes (any slope)
Distribution box
(level to slightly
sloping)
TRENCH LENGTH
P. Select trench width - 13 ft
Q. Divide bottom area by trench
width:
(H, I, J, or K) + P
lineal Jfeet.
�L
s._ - Zolineal feet
LAWN
R. Select trench spacing,
center to center - Z feet
S. Multiply trench spacing by
lineal feet
R x Q - sq ft of lawn area
X zQ-j - __�& sq f t
T-Ayn"T (Use other side)
1. Select an appropriate scale;
one square - feet.
2. Show pertinent property
boundaries, right-of-way,
easements.
3. Show location of house,
garage, driveway, and all
other improvements, existing
or proposed.
4. Show location and layout of
sewage treatment system.
5. Show location of water supply
well.
6. Dimension all set backs and
separation distances.
D-28
SLWECT `,,r�o;r JOB NO.
MTSORIGINATOR
DATIE
-LD d
3~ �s�r
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Llay.I lo — --
-CA QAD,Z?
1 ^� /zoo G,oz-
0-; o o
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of
23
DUTLO-r A
oU 1-Lv i B
vuTLOT C
L)3//'7 Z3 Z/ 0016
03 /l_7 Z3 zl 001q
03 117 13 21 OOZO
U
F I
r
456.00
30.00 _
I
v3 i/ 7 Z3 .9 / 001
3
240
K 1001
9
r,5,4
n
LOT I I
14
�IItn
Ln
vi
W l
p:7 47 36 -
e
„ o
6 W,
m
R= 200.00 �,
L= 27.20 ;�
o
0
lL Z
\
:q�
C= 27.18
C.B. = N 48. 39'06" W
O1 J
53AZ'�.
45" 3000° v'
Rs 130.28 2
F-
5'18 1N ' .
;. -L%109.81Cz
O
C B.6. N567.30104
�
3
J
105.00
-
_89044'42"W 337.04
p - 45 30.00" S
L2149.51 1. B
173.95 =145.6 C.B. = S67030'18 E 337.05
O
1 E
m
'n
c
U-)3
S 89.44' 42 *' W 544.00
Io h
--Line '1965-50 feet northerly of
and
_.
g
parallel wily the south lire of
NW 1/4
a-. �.�ei.,
of sec:'3, T. //7. R. 23, os• Measured
&
i
DUTLO-r A
oU 1-Lv i B
vuTLOT C
L)3//'7 Z3 Z/ 0016
03 /l_7 Z3 zl 001q
03 117 13 21 OOZO
U
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i
ROAD
;ITES
To,o s!,own is frota a survey dated Feb. 1957 by Kelley S
Ke I ley.
Dimensions shown are approximat^.
Datum Snown is assumed.
All lots shown are a minimum of 2 acres.
:: ATH
SCALE: 1"
CE1'.TIFICAT194
I hereby certify that this plat was prepared by me or undlr my direct supervis
that 1 am a uuly relistered Land Surveyor under the laws of the State Of Minn!
BY: G ' DATE: M AEG. 110. `.
ruce . e ey,
5-19-70 Skercil Plan for
^HAWq --
O.C.O. LLST61 S. KELLEY 1
DISIG" Orono. 11inritsota ori n/lrs
7850
��
•�
t '• 7j. 1.
r
o
U /
PA;z _ r-- L.. 4.
00
, r
./i �3-y� �• 3 E o I
OC {
/1:4rlac q= Z4 at�/ccn%1 7�-�Q
.��a^ ar�fGlD=sE�S-J�IJf� m
i
ROAD
;ITES
To,o s!,own is frota a survey dated Feb. 1957 by Kelley S
Ke I ley.
Dimensions shown are approximat^.
Datum Snown is assumed.
All lots shown are a minimum of 2 acres.
:: ATH
SCALE: 1"
CE1'.TIFICAT194
I hereby certify that this plat was prepared by me or undlr my direct supervis
that 1 am a uuly relistered Land Surveyor under the laws of the State Of Minn!
BY: G ' DATE: M AEG. 110. `.
ruce . e ey,
5-19-70 Skercil Plan for
^HAWq --
O.C.O. LLST61 S. KELLEY 1
DISIG" Orono. 11inritsota ori n/lrs
7850
1620 Silver Bell Road
Rochester, MI 48306
(313) 651-6836
October 8, 1990
Mr. Mike Gaffin
City of Orono
P.O. Box 66
Crystal Bay, MN 55323
Dear Mr. Gaffin:
OCT i i IM
Enclosed for your information and review is a Septic Design and
Perc Test Report for our home at 2010 Colin Drive (formally 85 So.
Brown Road). The current system was found to be daylighting, and
my investigation has indicated rather than repair the existing
system we may need to install a new one.
As such I have asked three separate firms to bid this work, and Ed
Sullivan has asked I send you this report. He will be in touch
with you separately to set up a site visit and discussion. Upon
completion of the bid process the selected firm will then be
working with you to complete the project.
For your information I am living temporarily in the Detroit area
while starting up some business areas for my employer, MTS Systems
in Eden Prairie. Until we return to Orono we have rented the
house to a couple, so it is currently occupied.
If you have questions or need to reach me for
easiest to call my secretary in Eden Prairie,
4126 and leave a message. Alternatively you
directly, days, at 313-334-2772.
Sincerely,
Jim We rdal
enclosures
any reason, it's
Lynn Fisher, at 937 -
may wish to try me