HomeMy WebLinkAbout1995-04-16 Soil Test ReportS -P TESTING, INC. Steven B. Schirmers — MPCA Cert. No. 627
951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566
April 16, 1995
Bryson & Myers
Cluster System
Big Island
Orono, Henn. Co., MN
This On -Site Sewage Treatment System is Designed for a Type 1, two
bedroom home for each site = 600 gal/day. Each site is an actual
Type 11, two bedroom. Designed in accordance with the Minnesota
Pollution Control Agency Chapter 7080 and local ordinances.
This system is designed as a cluster system due to very limited
space for adegtately treating septic effluent. The proposed
system is a 10"dia. graveless !.rench located at cabin A, the
Bryson property. Recommend an easment b maintenance agreement
be made between the 2 land owners & the City of Orono.
The soils on this site are a clay loam. A seasonally saturated
layer of soil was found at 66" to 78", (mottled soil). The bottom
of the system must be located at least 3' above the seasonally
saturated soil.
The soils at a depth of 30" have a percolation rate averaging
15.6 min/inch.
A pumping chamber will need to be installed to lift the effluent
to the treatment area.
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.
Due to the system being seasonally used, the tanks must be insulated
to prevent freezing during winter months. The accumulation of
sludge should be inspected no less frequent than every three years.
The disposal of sludge should take place whenever the top of the
sludge layer is less than 12" below the bottom of the :,vtlPi baffle
r whcnr er ' • bottom of t�.e :cum layer is less than: " , t—vo the
bottom of the outlet baffle. Removal of septage shall inciudf
complete removal of scum and sludge.
A water ureter must he installed at each cabin to monitor the daily
water use.
Due to this site being the only area available for an On -Site Sewage
Treatment System, recommend to install low water use facilities,
1.6gal/flush toilets, low flow shower heads etc.
Bryson & Myers
Cluster System
Big Island
Orono
(2)
Keep all heavy equipment off of the proposed treatment area before
and after construction. The treatment area should be marked off
before construction. This Design is not valid & the system will
need to be relocated if failure to protect the areas proposed
for On -Site Sewage Treatment occurs.
With proper installation and maintenance, this system should
have no problem in treating septic effluent effectively.
Nothing other than gray water (laundry, showers, etc.) human waste
& toilet tissue should be disposed into the septic tanks. Garbage
disposals are not recommended. Excessive amounts of soaps, cleaning
agents & chlorine agents may kill the bacteria needed to treat
septic effluent. Additives are not reco.nmended. Recommend to pump
& clean your tank through the manhole by a certified pumper every
year if you have 1 tank and every 2 years if you have two tanks.
Note: Due to this site being very Difficult for a pump truck,
recommend to inspect the tanks for the level of sludqe as noted
elswhere in this letter.
Steven B. Schirmers
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INDIXIIn11At Qr-WAr.r. T11FATMENT SYSTEn1 WORKSHEET
FLOW
A Estimated (.OD gpd LUY1:1�
measured x 1.5= gpd Lo,-1/er
SSMC TANK VOLUME
galkxls
SOILS (Site evaluation data)
C. Depth to restricting laver - 51 -(.r -to t. -1. t feet
D. Maximum depth of system C - 3 It = ':t. . S ' feet
E. Percolation rate 1!5. C� _ MPI
F. SSF /.(.j sq h/gpd
TRENCH BOTTOM AREA
H. For trenches with 6 inches of rock below the pipe:
A x F = Loo x t.4i =/aa.& sq ft of bottom area
I. For trenches with 12 inches of rock below the pipe:
AxFx02a_x_x0.8=_sghofbottom area
J. For trenches with 16 inches of rock below the pipe:
AxFx0.66= x x0.66m_sgItofbottom area
K. For trerchoes with 24 inches of rock below the pipe:
AxFx0b= x x0.6w_sgftofbottom area
BED BOTTOM AREA
L. For seepage beds with 6 or 12 inches of tock below the pipe,
15xAxFa13x_x_=_sgftofbottom area
ROCK VOLUME IN CU 17T
Ni. Rock depth below distribution pipe plus 05 foot times bottom area:
h1 =Rock depth + 6 inches x Area (14,1,J,L,K)
(_+05It) x_=_—cu ft
ROCK VOLUME W CU YDS
N. Volume in cu It divided by 27
M+27=cuyds_•27=cuvds
ROCK WEIGHT
O. Cubic yards times 1.4 = tons
Nx1.4=tons _ ..._x1.4=� tons
DISTRIBUTION
(Check one baud on slope)
Bed (less than 6% slope)
Trerxhcs
_ Drop boxes (any slope)
_ Distribution box (level to slightly sloping)
TRENCH LENGTH
11. Select trench-.vidth = 3.o fl = to"ora. ► aoc�..�c - +so.+.►+
Q. Divide bottom arca by trench width: (H, 1, J, or K) + P =
lineal feet
Its + i a, lineal feet
LAWN AREA
R. Select trench spacing, center to center • (P feet
C kfultiph• trench i in- by lineal feet R x Q - sq ft n' 1,11— arca
LAYOUT (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.
S. Show location of water supply well.
6. Dimension all set backs and separation distances.
D-25
Fsu-w4 Severe 1T... u GatbOs pa Dey (tyd)
` 0(M
Type 1
Type a
Type in
Tyts IV
ne&mm/
(S.:lm)
(Salm)
2 tx Ins
750
2 300
225
110
sr6
3 450
300
218
7 or 8
a600
375
256
.r+
a 750
ASO
610155
�
b I 900
525
332
+�
7 loso
600
370
Sdt Loam
1 ►1
675
ad
C3zv Lown
Number
ua«
S.y. Tut
M.
C.ppr.�r�y 11
Gr1os
of
Itedroorns
Lq..d
C.p.c,p
D�w.W
(S.:lm)
(Salm)
2 tx Ins
750
1.125
3 or 4
1.000
1.500
5 or 6
1.500
2.250
7 or 8
2.000
3.000
c vcf 9
See rip. C-6
(s 1.5)
S" a........ ■...-.+ A.— - S..W1.r.
Ir.rr tt..
Sal Tattu.
lar....rwa
Fria thin 0 1 •
S"—
—
01 b5
Sand
043
120
0110 S
Fv+e Sa+d-•
1 L7
Oi0
610155
-Andy LA=
117
0.79
16 t.. 30
Loaat
167
060
31 wls
Sdt Loam
2M
030
44to&O
C3zv Lown
2.20
14—T than G&—
C]ar
M14)
'>r wry M wy www_
�w
r1w�.w
V.I-./.rl. j.. p.ww.►rMr
w.u..., r ...rrwir..w..+ •�..
6 inches= Oryx Reduction*
12 inches= ZO.% Reduction
IS inches= 34% Reduction
24 inches= 40% Reduction
• sizing for gravelless trench
T
2 +u%ch Coat
I
4 inch Pipe
6.24 inch
:: Ro.► Below Nis )
�l
r
30
L
w... t-tgwe D-26
I(---
7.y,t
A. Determine pump capacity:
Gravity Distribution
1. Minimum suggested is 600 gallons per hour (10 gpm) to stay ahead of
water use rate.
2. Maximum su livery to a drop box of a home system is 2,70()
gallons per 45 ) t prevent build-up of pressure in drop box.
Pressure Distibution
3. a. Select number of perforated latents
b. Select perforation spacing = --- feet.
c. Subtract 2 ft. from the rock layer length.
Deiet
feet.
�
•Y
d. mute the number of spaces between perforations.
Length pert. spacing - _(t►•- -lt-�-- spaces
C. =spaces+ 1 =---perforations/lateral
I. Multiply perforations per lateral by number of laterals to
get total number of perforations.t.«�. x -= perforations.
g, . x',. _i a= gpm.
SELECTED PUMP CAPACM _'U_ gpm MAX.
B. Determine head requirements:
1. Elevation difference between pump and point of discharge.
I_ feet
2. If pumping to a pressure distribution system, five feet for pressure
required at manifold if gravity system, zero.
feet
_ . Friction loss
a. Enter friction loss table with gpm and pipe diameter.
Read friction loss in feet per 100 feet from table.
F.L. = I.Ik tr ft./100 It of pipe
b. Determine total pipe length from pump to discharge
point. Add 25 percent to pipe length for fitting
loss, or use a fitting loss chart. Equivalent pipe
length -1.23 times pipe length =
V_ x 1.25 = /y C, feet
c. Calculate total friction loss by multiplying
friction loss in It/ 100 It by equivalent pipe length.
Total fnction loss = Z -'4Y Z -'4 x 10b, • 100 = I feet
4. Total head required is the sum of elevation difference.
special head requirements, and total friction loss.
(ll (2) (3c)
I
C. Pump selection
1. A pump must be selected to deliver at least
4 a gpm (Step A) with at least N feet of total head (Step t3).
MA+C-
F-17
t.
r�......rrel.v
\." iw
k• ` -r ur r. tow
in vkwtn Ps aW.tw W-0
tit
OP
0.69
0.20
(WO
0.96
0.28
1.0a
0.56
0.74
2.Ob
0.80
1.04
a. Use for single family homes
b. Use for all other applications
PIPC L_6Lh
PDiru of D
N 40
Elevation Differerim
Pump 1171
F -16b
1.5 arch 2.0 inch 3.0 inch
SM R=L w tN A IGD 1114 P"
to
0.69
0.20
12
0.96
0.28
la
1.28
0.38
16
1.63
0.48
18
2.03
0.60
20
2.47
0.73 O. I i
25
7.73
1.11 00.16
300
5.23
1-55 0.23
11
7-90
2.06 0.30
q
rI7
.. o39
V48
3030
310) 0.58
35
I
I 4.76 I 0.70
10
5AO 0.62
CL'12T11'1:'i1'I'llllr d UUb2 /
Location or Project Bryson & Meyers, Cluster System, Big Island Orono
Borings made by S -P Testino, Inc. Steve Scttirmers Date 8-15-94
Classifiction System: AASHU USDA -SCS X Unified_; Other
Auger used (check two): [land X or Power Flight or Bucket X
2
Depth, Boring number
1 Depth, Boring number
4in in 108.2
feet Surface elevation 103.feet Surface elevation_
0 - - 0 - Topsoil dark brown loam
Topsoil dark brown loam 0 - 6"
0 - 8"
1 _ Brown loam
1 - -
Brown clay loam 6" 1-1/2'
Brown clay loam
2- 8- 2 1 2 lo 1-1/2' - 2-1/2'
3 - 3 - Brown loam strong
Brown loam 2-1/2' - 3'10"
4 - 4 -
Brown loam
5 - 5 -
6 - 6 - 3110" - 6'2" -mottled 602
2'2" - 6 -1/21 -mottled -112,
Rusty olive brown
7 - Rusty olive brown 7 - loam
loam
- 8' 8 - 6'2" 8'
1-6-1/2'
I
End of boring at 8' feet.
Standing water table:
present at-- - fe''` ,;�
ho -I-, ditu: t , ;. j.
Not present in hole X
Mottled soil:
Observed at 6-1/2feet of depth -
Not present in hole _
Comments:
End of boring at 8' feet.
Standing water table:
-f dopth,
Not present in hole X
Mottled soil:
Observed at 612" feet of depth.
Not present in hole --
Comments:
L- 1
ICliRTI ICA -1.10i: UOU21 I.0 :: ul Sall Iiu1 In�a
Location or Project Bryson & Meyers, cluster system , Big Island Orono
Borings made by S -P iestin4, Inc. Steve Schirmers Date 8-15-94
Classifiction System: AASHO USDA -SCS X ; Unified Other
Auger used (check two): (land X , or Power , Flight or Bucket X
Depth, g number 4
in in
3 De Boring Depth, boring number
feet Surface elevation ----104.2 feet Surface elevation 106.1
0 - - --- — 0 - --
Topsoil dark brown loam Topsoil dark brown loam
0 - 10" 0 - 10"
Brown clay loam
Brown cl.iv 1-l",
2 - 10" - 214" _
3 - ' -
-- 3:own loam w/traces
of sand
4 - 4 -
Esro•.:n Ic�•�ni
3-1/2' - 5-1/2'-mottl d 2'4" - 5 -1/2' -mottled
5-1/2 usty olive brown loam 5-1/2'
5-1/2' - 6'
Rusty olive brown
loam
5-1/2' - H'
End of boring at 8' feet.
Standing water tdble:
pre: --n` f,,..• . 1 ,
hours ditL'i I.Vring.
Not present in hole_ X
Mottled soil:
Observed at 5-1/2' feet of depth.
Not present in hole
Comments:
End of boring at 8' feet.
Standing water table:
t of depth,
hours after boring.
Not present in hole X
Mottled soil:
Observed at 5-1/2' feet of depth.
Not present in hole
Comments:
CERT.100627
PERCOLATION TMST DATA SHEET
S -P Testing, Inc. 8-16-94 9:15 �< n
PiIC.O.ition ti,t teidtng� Made b% - _4H1.__.� �Ltirtttr aL.__— —
Bryson&Heyers,Big Island 1 8-15-94
Tc%t hale location . Itale numh.r __—_—. hate hole +.a. prepared
Ikpth ill little F+�tnum 30 _tnchc•. Diameter of little —_6
Soil dx.1 Item tc%t hole'
Depth. mchr., Soil texture
0 - 8" Topsoil dark brown loam
8" - 26" Brown clay loam
26" - 30" Brown loam
Mcttioil of wratchtnp mde%%all _ Knife
Dcpth of prait•el to Ixrnont of tittle 2 inches
8-15-94 2:30pm 12
Date and Ixtur of initial water Idhnl . Depth of initial Nater filling — -inches above hale b.NI
Method uwd to maintain at Ica%t 12 mchr of water depth nt little tot at lean 4 hours_— Automatic siphon _
_-- - - —_- . Mal imum watct depth dtM.ve mile twtwrtn during res► 6 inches
Percolation
mic inter%.d. Mcasurement, Drop to water talc. I Remarks
minute, inches level. inches annul-_ per
— Inch
9:00 pref i 11 6
9:15 9:45 3-1/4 9.2 30 min
9:57 10:27 3-1/8 9.6 "
10:32 1102 " 3-1/8 9.6V "
Percolation rate = 9 •5 minutes per inch.
r_EIIT.#00627
PERCOLATION TEST DATA SHEET
{'Crl'UIa11U11 Datil readII1L111IalIC b�' S -P Testing, Inc. on B-16-94 ,.~tarring at ' 17
Bryson&Meyers, Big Isla d 3
y' 8-15-94
Tc%t hole Irxauon_ dole number . Date hole was prepared
Depth of hole bortonl 30 inches. Diameter of hole 6 inches
Soil dila Item test hole
Depth. Inches Still tc%turc
_ 0 - 10" Topsoil dark brown loam__
10" - 30" Brown clay loam
Method of scratching stdewal
Depth of gravel in bottom of hole- 2 inches
8-15-94 2:30pm 12
Datc and hour of initial water filling - —. IePth of Initial %%iter frlloy !Inches atxrs'e hole bottom
Method used to maintain at least 12 inches of water depth in hole for at Ica.t •i hours -
(IC Iq 11
ours-(ICPth ahove (Nyle blrlNnn during test 6 —inches
:Irne
Time ---
interval.
minutes
-
�tca.Ii
til
6
9:00
Prefill 1
9:17
9:47
"
9.59
10:29
"
10:30
11•:00
"
13.3
_
-----
2-1 4
nt.
Drop in water
level.Inillc%
rate.
ntinutc%per
Inch
Remarks
2-5/16
13.0
30 min--
in_2-1
4
2-1/4
13.3
_
-----
2-1 4
CER,r. N.006?.7
PERCOLATION'rF.ST DATA SNEE I'
a.rn
Percolaiton test readings made be S—P Testing, Inc._o11 8-16-94 ,tlrtutg at 9:15 �p l
01-
.,
Bryson6Meyers,Big Island 1 8-15-94
Test hole location . Hole number . Date hole %%as prepared
Depth of hole bottom 30 inchc,. Dlantercr of hole 6 utchc.
Soil data from teat hole:
Depth. inches Soil texture
0 - 80
8" — 26"
26" — 30"
Topsoil dark brown loam
Brown clay loam
Brown loam
Method of scratching sidewall Knite
Depth of gravel in bottom of hole 2 inches
8-15-94 2:30pm 12
Dale and hour of initial water filling . Depth of initial water filling—inches above hole bot(ont
Method used to maintain at least 12 inches of water depth in hole for at least 4 hours Automatic siphon _
Maximum water depth above (tole boltont during test 6 inches
ime
Time
interval.
minutes
Measurement.
inches
Drop in water
level. inches
Percolation
rate.
minutes per
inch
Remarks
9.00
prefill
6
9:15
9:45
"
3-1/4
9.2
30 min
9:57
10:27
3-1/8
9.6
« "
w w
10:32
11:02
"
3-1/8
9.6
Pcreolation rate = 9.5 minutes per inch.
• CERT.1100627
PERCOLATION TEST DATA SHEET
S -P Testing, Inc. 8-16-94 9:16 a.nt.
Percolation test readings made by— on— stamng at .?t►-
Bryson&Meyers,Big Island 2 Aj 8-15-94
Test hole location , Hole number , Date hole wac ptepared
Depth of hole bottom 30 inches. Diameter of hole 6 inches
Soil data from test hole:
Depth. inches
0 - 6"
6" - 18"
18" - 30"
Soil texture
Topsoil dark brown loam
Brown loam
Brown clay loam
Method of scratching sidewall Knife
Depth of gravel in bottom of holy 2 —inches
8-15-94 2:30pm 12
Date and hour of initial water filling . 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 Automatic siphon
Maximum water depth above hole bottom during test 6 inches
ime
Time --
interval.
minutes
---
Measurement.
inches
�
Drop in water
level. inches
Percolation
rate.
minutes per
inch
Remarks
Water remaining
in test
hole
9:16
9:46
6
1-1/4
24.0
30 min
9:58
10:28
"_
IS
w w
10:31
11:01
"
ON w
Percolation rate = ___2_4 •0 minutes per inch.