HomeMy WebLinkAbout1993-12-20 Septic System Design Reportr
, 6 ..
�O TESTING, INC.
Steven B. Schirmers — MPCA Cert. No. G.27 '
951 Katydid Lane NE • St. Michael, MN 55376 • (61 21 497 3566
IVA
`be
.11943
Dickey site
Lot 1, Block 2
Orono, Henn. Co., MN
This On -Site Sewage Treatment System is Designed for a Type 1, five
bedroom home in accordance with the Minnesota Pollution Control
Agency Chapter 7080 and local ordinances.
The soils on this site are SCS soils mapped - LrB - Lester loam.
A seasonally high water table was located at 14" to 22", (mottled
soil). Due to the seasonally high water table, a Pressurized
Mound System will need to be installed. The bottom of the rock
bed must be located at least 3' above the seasonally high water
table.
The soils at a death of 12" have a percolation rate averaging
5.5 min/inch.
A pumping chamber will need to be installed to lift the effluent
to the treatment area.
The manifold and supply line pipe must have back drainage to the pumping
chamber. The distribution pipes shall have their ends capped. Be sure
the rock and sand fill material are clean. The sod layer below the
entire mounded area must be turned over, just break up the sod, be sure
not to over work.
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. Mercury floats are a good method.
All neighboring wells are located greater than 100' away from the
proposed treatment area.
CONT'D
Dickey site
lot 1, Blk.2
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 of into the septic tanks.
Garbage disposals are not recommended. Smaller amounts of laundry
soaps, dish soaps, cleaning agents, etc. are better for the system.
Antibacterial soaps & chlorine agents may kill the bacteria needed
to treat septic effluent properly. Additives are not recommended,
they may cause harmful damage to your system. Recommend to pump
& clean your tanks by a certified pumper every year if you have
1 tank & every 2 years if you have 2 tanks to insure proper
maintenance.
�� Z
en B. Schirmers CSS
SBS/ds
og#frWcrt'cv-<ow 0 gv
37' b 1f 7-4 i 71 `I
J
t,4
:p
A
rtv, oil OU�IEEV SUII
DING t� " F r J.,
T"ILyi' y
INSPTOR 5",4 C -1 Y p
FFR%IIT NO. t t j Jp
D.�7E 111999
PRUb CD AS SU3F�iiMr)
PRr.wm wim CCRRrC'f10NS AS NUM) t
u ,
T PYf'Rt)VFD -- C(?RKECT & ftEcJUE'i.i1T 1 fJy�
mmer.ts are hu yet IK o..�rnuor. A': �etrk Mal be d.Ind I 'r 4
0r
In :ull nriobnce wltt+ all al�{Jlicw?le tutbYr>d d aurtmg node �' �v� ��O.JS
Guirnr entc mdretmp, ieenu "ot je1PKaov ncicd n thi'- rev's-
KIIEP THIS PIAN SET uN SiTE AT ALL TWJf
Ih
•app)
7�
'p �
o xo
�
� �•
�
..
�
h
J
T
?
co
C
m
n
a
r
I
qp
It,
n
n
r
n .
C
0 o N
()
Q,
Ir'
m
to
O n o
p
rn
a'D 3
r�
rr7
U
D�
Q�
O
x
J
Y,
N
N
O
C
ti
N
m
1
3
ED
-
N
o Q
�
n
F
Y,
N
N
r'l
O
3
1
3
ED
-
N
o Q
�
n
F
atm
TIS
O O O
3 33
~
r V,
�.O n
cm O
�D
N
N N o
D
Y 3
1
5.
3
0
!:
xr0 r r—� !-�-
I`rjq M_I�_I r
o'
n p 00 0 R
33 3 3 11
�I l
8 ct
;
Y
I►
-
n
)
i
ro
Y,
Q
O
�a
Ln
O
o
n n
-
s
atm
~
2 2S1
to
�D
J
D
A
CL
U,
3
0
!:
xr0 r r—� !-�-
G)
o'
0
Q
O
�a
Ln
O
M
F
�z
i
o
MOUND DESIGN WORKSHEET
(For Flows up to 1200 gpd)
A. FLOW
Estimated -0 �5-'O gpd (see pages D-7 or I-3, 4, 5)
or measured --- gpd x 1.5 =
B. SEPTIC TANK LIQUID VOLUMES
4 J-/oo a gallons (seepages C-3 or C-5)
C. SOILS (refer to site evaluation) 1,0-1 0,V C-
1. Depth to restricting layer = a o inches I
2. Depth of percolation tests = ! a inches
3. Percolation rate S • 5 mpi
4. Land slope 3
D. ROCK LAYER DIMENSIONS
1. Multiply flow rate by 0.83 to obtain required area of rock
layer. Daily Flow x 0.83 =
J gpd x 0.83 sq. ft./gpd = �� sq. ft. -t 10 -,o
2. Select width of rock layer (10 feet or less) = 1 ft.
3. Length of rock layer = Area + Width =
G_ ieisq.ft.+ /o ft. =Lu ft.
E. ROCK VOLUME
1. Multiply rock area by rock depth to get cubic feet of rock;
4,, t sq. ft. x/,os ft. = ecu. ft.
2. Divide cu. ft. by 27 cu. ft./cu. yd. to get cubic yards;
rL-�, cu. ft. + 27 = z,) cu. yd.
3. Multiply cubic yards by 1.4 to get weight of rock in tons;
D n cu. yd. x 1.4 ton/cu. yd. = a5!� tons.
F. ADSORPTION WIDTH �LLA " L-04-1
1. Percolation rate in top 12 inches of soil is mpi
2. Select allowable soil loading rate from table on page E-;
. q,5' gpd/ft"
3. Calculate adsorption width ratio by dividing rock layer
loading rate of 1.20 gpd/fP by allowable soil loading rate;
1.20 gpd/ftp+ ,,t < gpd /ft2= ;)- L,?
Check this value on page E-16.
4. Multiply adsorption width ratio by rock layer width to get
required adsorption width;
,�.Lr7 X is ft=.0 t.,2ft
Eaimaaed Se -age Flus in Gallunl pa day
(Spd)
an bex
Uftof
Abmgd -Wt%
0ft* Law
WIaM
F~ tMa0.1 •
GOana Swd
-
of
TyPt I
I
Ty fc 11
Type III
I
Type
neaarr.t
Fre Sand ••
0.60
2.00
IV
2
300
221
160
Loam
3
450
300
216
0.50
4
600
371
216
2A7
5
710
410
29a
Steno than
6
900
325
332
7
1050
600
370
1200
673
406
Snti T..4 C.V+ W" i. a.%-
%ombrof
M.a•. Lq..d
L.q..Jc•p�y.M
a.Are.w.
Cq•cry
arlb•M "Paw
2w 1e..
730
1123
2 r 4
1000
Iwo
4 r 6
1310
2210
7, 6 -1
»
30M
a.v 1
--
Rock Bed
II I• J•I J•J•J•I•I•I•J•J•J
ZZ�.�`�. I•I•I•I•I•J•J
• • ??__f�� 1•x•1,•\•ti•1.• til Sett.
•I ♦.3••I� J•J•J•J•J•I.J
•I•I• •J •J• •J•I•J•: •: •J•J
F--- I.en6th
Absorption VAdth Sizing Table
fon elation w
in Mimleat
1fM(MPI)
Solt Teatan
Gallons
pet day per
Pere fm
Uftof
Abmgd -Wt%
0ft* Law
WIaM
F~ tMa0.1 •
GOana Swd
-
-
0.I e S
Srd
1.20
1=
0.1 io3 a•
Fre Sand ••
0.60
2.00
6,013
Sandy Lana
0.79
137
16 In 30
Loam
0.60
2.00
311045
SiM Lar"
0.50
7.40
46 b 601.0am
0.45
2A7
4010120
ay
0.24
5A0
Steno than
Clay
-
--
12D'-.
X
ope is 3% or more, subtract rock layer width from
on width to obtain minimum downslope dike toe for
absorption:
L,7 ft - _LC) ft = feet
2. Calculate minimum mound size based on geometery:
a. Determine depth of clean sand fill at upslope edge of rock
layer: Separation /.:5' feet
b. Multiply rock layer width by landslope to determine drop
in elevation; Slopc Difference
,/0 x ' %+100= •3 feet
c. Add depth of clean sand depth of clean sand for
separation at upslope edge (2a) to depth of rock layer to
rock depth and the depth of cover to find the total mound
height at upslope edge of rock layer;
/. :3 ft + 1 ft + 1 ft = 3.'3 feet
d. Enter table on page bottom with landslope and upslope
dike ratio. Select dike multiplier of 3 .-<q
e. Multiply dike multiplier by upslope mound height
to get upslope dike width: 3_ x 3.5'? = 1-a feet
f. Add the depth of slope difference (2b) to the upslope
height to get the downslope height
3, z + = 3, C, _feet
g. Enter table on page bottom with landslope and
downslope dike ratio. t
Select dike multiplier of 4. Sy
h. Multiply dike multiplier by downslope mound height
to get downslope dike width: 3• c, x q.sv = I G feet
i. Compare the values of step G.1 and Step G.2.h. Select the
greater of the two values as the downslope dike width;
�'I feet ..........••
j. Total mound width is the sum of upslope dike Kocktk-d WWhk%_4a'' .'h SWI 01—JZ
width plus rock laver Nvidth plus d ownsln^_
dike width; I,�Kock
+ /_ ft + ft = feet �,,I,.aki►►a_ 1X.
k. Total mound length is the sum of upslope ;
dike width plus rock later length plus
upslope dike width;
lam- ft+ U- 'e, ft, )7 —ft= _ r -_ fact t,..�. •��. _/
3:1
ll
wnslopc
5:1
LI
7:1
3.1
4.1
UPSIOPC
5:1
4:1
7:1
it
16 43npt
0
3A
40
SO
4.0
7.0
30
40
S.0
40
7.0
t0
1
301
417
434
7M
711
1.3
474
544
454
7AI
3
3.11
3�
e
536
S.
417
7.12_.
1.14
7 0
7
?.7.
4.54
4.35
534
SM
414
S
4.f3
4 45
l
330
34
4.St
!:4
S: _
67°
7!1
i.K.
41'
4L1
5
406
5.0.
4:"
t5.
'•:
4ni
c._
S1:
S71
4
3K
SM
714
934
1:07
75t
?J
3 i
44;
493
341
7
3B3
SSi
7.N
1034
1373
7Y
).11
370
4 2
470
S33
1
3.1s
INi3J
1154
1511
143
301
351
4 U
441
4M
1
4l1
43S
t.tv
1]04
1117
334
7.9.
345
310
430
ILS
10
4]9
40
100
1s0o
3333
711
70
733
375
4.t7
411
11
4.0
7.14
11.11
t745
3043
714
774
323
341
3.9s
434
11
<N
:.N
13-0
7:43
4375
771
7.:0
317
3to
390
401
PUMP SELECnON PROCEDURE
A. Determine pump capacity:
C' Gravity Distribution
1. Minimum suggested is 600 gallons per hour (10 gpm) to stay ahead of
water use rate.
2. Maximum suggested for delivery to a drop box of a home system is 2,700
gallons per hour (45 gpm) to prevent build-up of pressure in drop box.
Pressure Distribution
3. a. Select number of perforated laterals .?
b. Select perforation spacing : i ft.
c. Subtra 2 ft. from the rock layer length.
11� - 2 ft • � [t.
d. Determine the number of spaces between perforations.
Length pert. spacing . /, L., ft + ft. _ 2 -7,_ spaces
e. _�'i!= spaces + 1 �_ perforations/lateral
f. Multiply perforations per lateral by number of laterals to
get total number of perforations.
1=. x A �_ &-j, perforations.
g' a x Q��= &ZBPm
SELEIL I ED PUMP CAPAQTY 3� gpm
V. Determine head requirements:
1. Elevation difference between pump and point of discharge.
):Z_ feet
2. If pumping to a pressure distribution system, add five feet for pressure
required at manifold
�. feet
3. Friction loss
a. Enter friction loss table with gpm and pipe diameter.
Read friction loss in feet per 100 feet from table.
F.L a :i . L ft./100 ft of pipe
b. Determine total pipe length from pump to discharge
point. Add 25 percent to pipe length foi fitting
loss, or use a fitting loss chart. Equivalent pipe
length - 1.25 times pipe length =
11 �_ x1.25- Z) 1C/ feet
c. Calculate total friction loss by multiplying
friction loss in ft/100 ft by equivalent pipe length.
Total friction loss = N . L. x t ✓ +100 = _ ( feet
4. Total head required is the sum of elevation difference,
special head requirements, and total friction loss.
+ S, + L�
(1) (u (30
TOTAL HEAD _-) "_ feet
C Pump selection
1. A pump must be selected to deliver at least Z_ gpm (Step A)
with at least �_ feet of total head (Step B).
EM PERFORATION OF A PERFORATED LATERAL
«� c...
TyW
.• ; lww .t wMar. rWk I. I.
M7rw NM IMr.w�Mf
• w Ir,e tM
Ir N CAP
_
LAWN
.4�. ralraivalwue N
i - Greer tow L"W W4. of La"M
carr ... ta..ul.e
TABLE OF PERFORA noN DtSCHARCEs IN CPM
Head Paloration dlraudw 0ndwl
10
7/0
148
lam
036
0.74
is
069
0.90
26b
OJO
1 X01
23
029
1.17
30
0.98
120
4.0
1.13
1A7
510
126
165
au" 1.0 foot of herd for nm1&ntW 2ysleena.
blhe 2.0 !«t of had far o1l+a aalAbtLF�+rn4
Pipe LAmph
Point of DischarS
)elevation Difrem-me
Pump p n �
F -18b
1.5 inch 2.0 inch 3.0 inch
BPM Rlaimkup.IOonerr4+
10
0.69
0.20
12
0.96
0.28
14
1.28
0.38
16
1.63
0.48
18
2.03
0.6u
20
2.47
0.73
0.11
25
3.73
1.11
0.16
30
5.23
1.55
0.23
35
7.90
2.06
C.30
40
11.07
2.64
0.39
45
14.73
3.26
0.48
so
3.99
0.58
55
4.76
0.70
60
5.60
0.82
_ . J 1 .
ion or Project Dickey site, Lot 1, Block 2, Orono
rings made by G -P 7_esting, Inc. Steve Schirmers Date 11-3-93
Classifiction Sy3tem: AASHO USDA -SCS X Unified Other
Auger used (chp-', two) : Hand X or Power Flight , or Bucket X
Depth, Borg. Depth, Boring number 2
in in
feet Surface elevation feet Surface elevation 997'9
- -- - — 0 - -- - -- -
2 -
3 -
CM
5 -
6 -
7 -
M
Topsoil dark brown
loam
0 - 1'
Brown clay loam
1' - 1'10"-MOTTLEDI'10
Rusty olive brown clay loam
1'10" - 2'4"
Rusty olive brown loam
2'4" - 3'
Rusty olive gray
loam
3' - 4'8"
Rusty olive gray silty loa
4'8" - 5'
End of boring at 5' feet.
standing _able:
present at feet of depth,
hours after boring.
Not present in hole X
mottled soil:
Observed at 111011 feet of depth.
Not present in hole
Comments:
1
2 -
3 -
<C
5 -
6 -
7 -
8 -
Topsoil dark brown
0 - 10" loam
Brown clay loam
10" - 1'8" -MOTTLED 1'8"
Rusty olive brown
clay loam
118" - 2110"
Rusty olive brown
loam
2'10" - 5'
End of boring at 5' feet.
Standing
present at feet of depth,
fours after boring.
Not present in hole X
Mottled so--.':
Observed at 1'8" feet c depth.
Not present in hole
Comments:
ation or Project Dickey site, Lot 1, Block 2, Orono
orings made by S -p testing, Inc. Steve Schirmers Date 11-3-93
Classifiction Syztem: AASHU ; USDA -SCS X Unified Other
Auger used (check two): Hand X or Power Flight or Bucket X
Depth, Boring number 3 Depth, Boring number 4
in in
feet Surface elevation feet Surface elevation_ 995,2
2 -
3 -
4 -
5 -
6 -
7 -
8 -
Topsoil dark brown
loam
11cc0 - 1'4"
C' � riot, �PP4" - 1'8" -MOTTLED 1
Rusty 1,8"- 2'2" ftiO YESmn
Rusty olive gray
clay loam
2'2" -3,8"
Rusty gray silty clay loa
3'8" - 4'A"
Rusty olive g' y loam
44441 - 5
End of k:oring at 5' feet.
Stan i .:at_r table.
present at— 4'1" feet of :!epth,
16-1/2 hours after borirg.
Not ;.resent in hole
Mottled soil:
Observed �at 1'8" feet of depth.
Not prez�_nt in hole
Comments:
r8
Topsoil dark brown
loam
1 0 - 1'2" -MOTT
Rusty , , �., _ 1 _1 /-),o
2 - Rusty gray brown
clay loam
1-1/2' - 2'10"
3 -
Gm
5 -
M
7 -
8 -
Rusty gray clay
loam
'10" - 5'
End of boring at 5' feet.
Standing water table:
present at 2'11" feet of depth,
18-1/2 hours after boring.
Not prrsent i:. hole
Mottled soil:
Observed at 1'2" feet of depth.
Not present in hole
Comments:
1'2
gi$,
X
n or Project Dic-key citP_,made by;P;ting, Inc. Steve Schirmers Date 11-3-93cticn System: AASFIU ; USDA -SCS X Unified Other
Auger used icheck tt.,o) : Ilanc:_ K or Pcl-jer Flightor Bucket X
Depth, I Boring number 5 Depth, Boring number 6
in in
feet Surface elevat.on 995.0 fSurface elevation 594.5 _
2 --
4 -
5 -
6 -
7 -
8 -
Topsoil dark brown
loam
0 - 1' 2"
1,Lvwl1 L:107 1Vd111
1'2" - 1'8" -MOTTLED 1'8
Rusty olive brown clay loa
1'8" - 214"
71usty214" - ?'8" o�jveay
� �a
Rusty olive gray
loam
- r, '
End of boring at 51
feet.
Stand, n5 water table:
preseni at 3'7' feel, ct
18-112 hours after borin.l.
Not p esert. i, le
Mott l .,d soil:
Observed at1, 81, feet of depth.
Not present in hot=
Comments:
1 -
2 -
3 -
4 -
5 -
6 -
7 -
Topsoil dark b,,awn
loam
0 - 1'2" -MOTTLED 1120
Rusty 1' 2" •- 1-1/2'9Mngf8Xm
Rusty olive brown clay lr- -i
1-1/2' - 2'2"
Rusty olive gray
clay loam
2'2" - 314"
Rusty olive gray
loam
3'4" 5' I
I � I
I.
End of boring at feet.
Standing w� ter tab1_ :
present at 3'5"- ' et of rl<-pth, l
18-1/2 hours al er poring. I
Not present in hole -
Mott, d
ole -
Mott -.d soil
Observed at 1 '" - feet of dev i.
Pot present i ;
Com -encs:
RT 00
PERCOLATION TEST DATA SHEET
a.m.'
latirt; tc�t readim�� m.,.lt h� S—P T ati nq, Tnc on 1 1 —4-93 :;:ming ar 8:02 _ h.n,
Test hole location
Lotl , Blk . 2 , Dickey site Hole number 1 Date hole ��ac prepared 11-3-93
Depth oI hole bottom 12 inches. Diameter of hole 6 inches
Soil data from test hole:
r!nth. inches Soil texture
0 - 12" Topsoil dark brown loam
Method of scratching sides all Knif e
2
ith of gravel in bottom of hole—.
11-3-93 1:30pm 12
and hour of initial water filling . Denth of initia! water filling inches above hole bottom
Aethod uwd to maintain at least 12 inches of water depth in hole for at least 4 hours Automatic siphon
. Maximum •.% iter depth above hole bottom during test 6 inches
Time
ime i ir<,•rr. , i
minutes
Measurement.
inches
Drop in eater
leer. inches
Percolation
rate. arks
minute< per
inch
7:50 prefill
6
8;02 8:17 "
3-11/16
4.1
15 min
it
8:43 1 8:58 I
3-7/16 4.4
go
_
r. 3- 3/ 8 4. 5
8.59 9:14
---
_
l
Percolation rate - 4 ' 3 _ Butes per inch.
CERT -t00627
PERCOLATION TEST DATA SHEET
8:03 a.m.
Percolation tt>t readutL, made h\ S—P Testing. InC . on 11-4-7j starting at p.m.
' •Jen ,
Tcst hole location Lotl , Blk . 2, Dickey S].te}iole number 2 —. Date hole was prepared 11-3-93
Depth of hole bottom 12 inches. Diameter of hole 6 inches
Soil data from test hole:
Depth. inches Soil texture
0 - 10" Topsoil dark brown loam
10" - 12" Brown clay loam
Method of scratching sidewall Knife
Depth of gravel in bottom of hole 2 inches
11-3-93 1:30pm 12
Date and hour of initial water filling Depth of initial %-ater 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
6
Maximum %%ater depth above hole bottom during test inches
,'ime
Time
interval.
minutes
Measurement.
inches
Drop in water
level. inches
Percolation
rate.
minutes per
inch
Remarks
7:50
prefill
6
8:03
8:18
of 1
4-1/4
3.5
15 min
P •. 12
8:57
is
4
3.9
"
9:00
9:15
"
3-7/8
3.9
"
Percolation rate = 3.7 _mtnut-s per inch.
T.r00627
PERCOLATION TEST DATA SHEET
a.m.,
Percolation test reading. made h•. S—P Testing. Inc. 011 11-4-93 starting at8: 04
Test hole location Lotl , B 1 k . 2 , Dickey s i to Hole number 3 _Date hole was prepared 11-3-93
Depth of hole bottom 12 inches. Diameter of hole 6 inches
Soil data from test hole:
Depth. inches Soil texture
0 — 12" Topsoil dark brown loam
Method of scratching sidewall Knife
Depth of gravel in bottom of hole 2 inches
Date and hour of initial water filling 11-3-93 Dep3h0� Initial water fillin" 12 inches above hole bottom
Method used to maintain at least 12 inches of water depth in hole for at least 4 hours Au temat : e si phen
, Maximum water depth above hole bottom during test 6 inches
ime
Time (
inter al. Measurement.
minutes i inches
Drop in %% ater
level. inches
Percolation
rate.
minutes per
inch
Remarks
7:50
prefi11 6
8:04
8:19
3-3/16 I
4.7
15 min
8:41
8:56 "
3-1/16 4.9
orof
9:01
9:16 I
3 f 5.0
ofIN
I
I
�
_
I �
I
� I
I
� �
i
� I
Percolation rate 4.9 _minutes per inch.
RT.#00627
PERCOLATION TEST DATA SHEET
a.m.
Percolation test readines made h\ S—A TPctt i ng, Inc- _ c,n 11-4-9 3 startine at 8:05 p.m.
Test hole location Lot 1 , B 1 k . 2 , Dickey site Hole number 4 Date hole %\ as prepared 11-3-93
Depth of hole bottom 12 inches. Diameter of hole 6 inches
Soil data from test hole -
Depth, inches
Soil texture
0 — 12" Topsoil dark brown loam
Method of scratching sidewall Knife
Depth of gravel in bottom of hole 2 incises
11-3-93 1:30pm 12
Date and hour of initial water filling __. Depth of i,iitial %%ater 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
6
!Maximum water depth above hole bottom during test inches
ime
Time
interval.
minutes
Measurement.
inches
Drop in water
level. inches
Percolation
rate.
minutes per
inch
Remarks
7:50
prefill
6
8:05
8:20
It3-1/2
4.3
_
15 min
8:40
8:55
of3-5/16
4.5
"
9:02
9:17
3-1/4
4.6
"
Percolation rate = 4 • 5 minutes per in. --h.
T.p00627 ,
PERCOLATION TEST DATA SHEET
a.m.
Percolation test readings made h% S -P Tp -,ting, Inc. on 11-4-93 stanin,_ 8:06 p.m.
Test holc location Lotl,Blk. 2 , Dickey site Hole number 5 Date hole vas prepared 11-3-93
Depth of hole bottom 12 inches. Diameter of hole 6 inches
Soil data from test hole:
Depth. inches Soil texture
0 - 12" Topsoil dark brown loam
Method of scratching sidewall Knife
Depth of gravel in bottom of hole 2 inches
11-3-93 1:30pm 12
Date and hour of initial water filling . Depth of initial water filling inches above hole bottom
Method used to maintain at least 1' inches of water depth in hole for at least 4 hours Automatic Siphon
6
Maximum water depth abo%•e hole bottom during test inches
ime
i
Time
interval. � Measurement.
minute: inches
Drop in water
level. inches
Percolation
rate. Remarks
minutes per
inch
7:50
prefiI1 ! 6
8:06
8:36 of2-5/8
5.7
30 min
8:39
9:09 go2-7/16
6.2 ' it
9:10
9:40
2-3/8
6.3
j
I
I �
I
Percolation rate = 6 . I_... _ ndtes per inch.
T.100627
PERCOLATION TEST DATA SHEET •
S -P Testing, Inc. 11-4-93 8:07
Percolation tort readings made b� on stamn;_ a� p. M.
Test hole location Lotl , Blk . 2 ,Dickey Site Hole number 6 Date hole was preparertll-3-9 3
Depth of hole bottom 12 inches. Diameter of hole 6 inches
Soil data from test hole:
Depth, inches Soil texture
Topsoil dark brown loam
Method of scratching sidewall K n Lf a
Depth of gravel in bottom of hole 2 inches
11-3-93 - i o 3�O�m.w12
Date and hour of initial water filling epi n i t ial ater 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 eater depth above hole bottom during test 6 inches
.: ime
Time
interval,
minutes
Measurement.
inches
Drop in eater
level. inches
Percolation
rate,
minutes per
inch
Remarks
7:50
prefil1
6
8:07
8:37
3-3/16
9.
30 min
8:38
9:08
9:11
9:41
Percolation rate = 9.4 minutes per inch.