4884 Pilot Knob Rd - Septic Design & AS-BUILT-fgal I I- 96"
nob ski
SITE EVALUATION
SOIL BORINGS
PERC. TEST AND DESIGN
L.74-piv AIX/
A4-6 0/
SITE:
EAGAN
R I WED
BY
DATE x`.20/
BUILDING INSPECTIONS DEPT
Yr'
BY: JERRY SAUBER
MPCA# 925 #317
Office (651) 463-7434
Home (651) 463-2597
Soil Boring Log
Date:.}
Pro'ect t_osation: _ Yom( ',Ni 77 1 '1 1 �
Client:
Address:
City
Bohn • method: Auer
Depth
(Feet)
1 --
2 - --
3 - --
4 --
5 - --
6 --
7 - --
Texture
i o 4 "ci.
J
id
Slope: c2—/ %
End of boring at
14
State
Pit
feet.
Standing water table: yes no
Present at feet of depth,
hours after boring.
Mottled soil:
Observed at feet of depth.
Not present in boring hole ,.
Observations and comments:
Zip
Probe Other
Color
cal
Structure: Blocky ( Platy Prismatic None
uc. 8
Color classification s stem:: Aunsell . e
Boring Number
Surface Elevation
Soil type at system depth:
Boring Number
Surface Elevation
Soil type at system depth:
Depth
(Feet)
2
3
4
5 - - -
6 - - -
T
gs made
Texture
/0 o 6
Col or
Structure:.. Blocky Platy 2 Prismatic None
Slope: 6 %
End of boring at feet.
Standing water table: yes no
Present at feet of depth,
hours after boring.
Mottled soil:
Observed at feet o
Not present in boring hole
Observations and comments:
May to p
05/10/2010 15:17 FAX 6
rte
CRY
Boring Num
Surface Elevation
Soil type at system deptt't:
Texture
['opt()
Feet)
be LSther
Color oiassiit_ atio_ s step
Boring Number
Suriace Elevation
Soil type at system depth:
Texture
Standing water table.: yes no
Present at feet of depth,
hours after boring.
Mottled soil:
Observed at feet o rt 31,
Not present in borin hole
Observations and co trit ts:
Color
P
Client:
Addras
B
Structure: Blocky
Slope: ra -r
End of boring at feet.
463 2773
Standing water table: yes
Present at feet of dep
hours after bori
Mottled soil:
Observed at feet of depth.
Not present in boring hole
Observations and comment
DO rr' +eiwr
SOBER 11.116,84 G.Ca.
Soil Boring Log
pate:.-
Soils verified by Bob Freiermuth on 5- 10-10.
X1002
20(0
PERCOLATION TEST DATA SHEET
Test hole location(, /. 045.
Date test hole was prepared 3" - -f2 --
Diameter of hole, inches.
Soil data from test hole:
Depth, inches
Method of scratching sidewall
Depth of pea -sized gravel in bottom of hole, inches.
Date and hour of initial water filling r - _ ; z G ,
Depth of initial water filling,_ inches above hole bottom.
Method used to maintain 12 inches ofwater depth in hole for at least it
hours : 37 %
Percolation test reading made by;
/Z , (date) starting a'
above hole bottom during test,
Hole number
Percolation rate - =ice
minute per inch.
, Depth of hole bottom,,2/ inches
Soil texture
,17y f eu d
`4.
Maximum water depth
PERCOLATION TEST DATA SHEET
Test hole location C' , 7 4 1 -t Hole number 2
Date test hole was prepared S=7 — zo to , Depth of hole bottom inches
Diameter of hole, C 'inches.
Soil data from test hole:
Depth, inches Soil texture
u
Method of scratching sidewall —
Depth of pea -sized gravel in bottom of hole, —_ inches.
Date and hour of initial water filling t " 2-'/Q --
Depth of initial water filling,./ inches above hole bottom.
Method used to maintain 12 inches of water depth in hole . fora t leash
hours:
- ..0,, ., A.)
Percolation test reading ' ade by;
z-2‘ (date) starting at
above hole bottom during test,
Percolation rate -
Time
Interval
Measuremen
inches
inches.
Drop in water,
level, inches
7
2/z
minute per inch.
p.m.. Maximum water depth
Percolation remarks
rate, minute
per inch
y
INDIVIDUAL SEWAGE TREATMENT SYSTEM WQRKSHEET
FLOW
A. Estimated 5 v gpd
measured x 1.5= gpd
SEPTIC TANK VOLUME
B. / t)o—z L �.. ,�7i- gaItons
SOILS (Site evaluation data)
C. Depth to restricting layer= > ‘ feet
0. Maximum depth of system C - .3 ft r 2/ ` kok. I, f,-
L Percolatitm rite. MPf
I:. SSF . ir 3 s9 ft /gpd ' G 2 C -� ,cez a S-e /, 73: #4.
TRENCH BOTTOM AREA
H. For trenches with'b inches of rock below the pipe:
AxP =x .. sgltofbottom
t. For trenches with 12 inches of rock below the pipe:
AxFx0,8= x x0.8= sq ft of bottom area
I. For trenches with 18 inches of rock below the piper
AxFx0,66= . x x0.66 sq ft pf bottom area
K. For trenches with 24 inches of rock below the pipe: .
AxFx0.6= x x0;6'= • sgftofbotto area
a
A, <ct4 4 13 ED ) BOTTOM AREA
For pcc ids with' inches of rock below the pipe;
,.,,
K /"'= ° tvx Z,e7 -2 : q fl of bottom area
ROCK VOLUME IN Cl PT
M. Rock depth below distribution pipe plus 9.5 foot times bottom area:
M =Rock depth + 6 Inches x Area (H,I,J,L,K)
(� +0.5 ft) x75 °z:.z —cu ft
ROCK VOLl:TtvfE IN 'CU YDS
N. Volume in cu ft divided by 27
M.1 27wcu yds75Z + 27 99 21'
cu yds
ROCK WEIG7 - 1T
Cubic yards times 1,4 = tons
N x 1.4 = tons p cr
x 1 „d
'DISTRIBUTION Pi r.. 5 0 a/
he da one based on slope)
kd tics than f;% slope) 5 *' /t
Trenches
Drop boxes (any slope)
Distribution box (level to slightly sloping)
TRENCH LENGTH
P. Select trench width = - ft
Q. Divide bottom area by trench width; (H, 1, i, ter K) + p
lineal (m!
l't!�e,tl fce.t ..
LAWN AREA
k. Select trench :;pacing, center to center = feet
S. Multiply trench spacing by lineal feet 'R x Q = sq ft of lawn area
• ak.fft
LAYOUT (Use other side)
I. Select an appropriate scale; one square = _ °°- feel,
2. Show pertinent property boundaries; right -of -way, easements,
3. Show location of house, garage, driveway, and all other
improvements, existing or proposed !
..p C(
r.r•r,r r.r,r ,7� •1
lti�trtirti: ti ��:�ti.? tl,c!t �.uvc!
No.
Bedrooms
DAKOTA COUNTY MINIMUM
SEPTIC TANK REQUIREMENTS IN GALLONS
inimum
Liquid
Capacity
1125*
(750)
1500*
(1000)
2
o r 4
5 or 6
0 or
2250*
(1500)
2250 *
(2250
3000* 3000
(woo)
(3000 ')
( t000 *)
* Multiple Compartments or Multiple Tanks
Multiple Compartment Tanks are required to have a code maintenance hole (man - hole)
for each compartment.
Designers and installers should inform home owners of the need to have all
compartments pumped. As -built drawings should also reference this. Homeowners
need to be able to locate all maintenance holes for the pumpers.
Designers are required to state the correct Dakota County tank sizing for replacement
and upgrades.
It is highly recommended that property transfer compliance inspections indicate whether
the septic tank capacity meets the above standard. The buyer would then be informed
of the need for additional septic tank capacity requirements before adding a garbage
disposal, basement sewage lift, etc.
Questions regarding these items may be directed to your local Municipal Sewage
System Inspector.
o: ideptlemgmtlwalmlrnrsepcap
Minimum Liquid
Capacity with
Garbage Disposal
1125
11
1500_*„)
(1500*)
Minimum Liquid Capacity with
Garbage Disposal AND
Basement Sewage Lift
1500*
(1500 *)
2000
(2000 *)
3000 *
(3000 *)
4000 *
Minnesota Rules 7080 requirements in ( ) for reference and comparison
1.5 inch
gpm Fticcieo
.0 inc i`
3.0 inch
of pipe
las pa
10
0.69
0.20
2.0b
12
0.96
0.28
b. Use for all other applications
14
1.28
0.38
16
1.63
0.48
18
2.03
0.60
20
2.47
0.73
0.11
25
3.73
1.11
0.16
30
5.23
1.55
0.23
35
7.90
t
0.30
40
11.07
2.64
0.39
45
14.73
3.28
0.48
50
-
3.99
0.52
55
4.76
0.70
60
5.60
0.82
Required Perforation Discharge
in gallons per minute (gpm)
Discharge e
(feet)
152 pr.f
' 1 m
1.0a
0.56
0 74
2.0b
0.80
1.04
a. Use for single family homes
b. Use for all other applications
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 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 Distibution
3. a. Select number of perforated Iaterals
b. Select perforation spacing = f feet.
c. Subtract 2 ft. from the rock layer length.
>z Yat 2 ft. = � feet.
ank d. Determine the number of spaces between perforations.
Length perf. spacing 2 ft. + % ft. = / 3 spaces
13
spaces + 1= / -- perforations/lateral
Multiply perforations per lateral b number of laterals to
. t total number of perforations. ada x 1 - . ' perforations.
Y xL - 'fi
e
f.
g.
B. Determine head requirements:
1. Elevation difference between ump and po' t o , discharge.
feet r U1 V t." ! -
2. If pumping to a pressure distribution system, five feet for 'pressure
required at manifold if gravity tem, zero.
feet
3. Friction Ioss
a. Enter friction loss table with gpm and pipe diameter.
Read friction loss in feet per 100 feet from table.
F.L. = /- 5 ft. /100 ft 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 -1.25 times pipe length =
x 1.25 = � feet
c. Calculate total friction loss by multiplying
friction loss in ft /100 ft by equivalent pipe length.
Total friction loss = / 5`x .6 *3 +100 =
4. Total head required is the sum of elevation difference,
special head requirements, and total friction Ioss.
C. Pump selection
PUMP SELECTION PROCEDURE
SELEL ft L) PUMP CAPACITY f g m
(1)
(2) (3c)
TOTAL HEAD / feet
•
feet
1. A pump must be selected to deliver at least
gpm (Step A) with at least /.S. feet of total head (Step 13).
END PERFORATION OF A PERFORATED LATERAL
er
LOri9inal Soti Proaa Properly Scarified
8efer, Pbdng Sand Layer
Pump
Pipe Length
F -17
•
Layr of Geofertite Fabric iar tar-
Fab layer Ur of boy or ye covered
i raatr Daa..
fen teen Gritted Sot laantaliy
We
into Cep ar Top
-M Least 1Y to Edge
of Rock Layer
F -18b
Point of Discharge
Elevation Difference
/5
e
,cbt/e e.e_
2 u /e
Th
2 it xf 1
115' 1
94,4
3.k.u)
INDIVIDUAL SEWAGE SYSTEM AS -BUILT
Owner: nt.v
Houuse Type: I�I Ill Property ID No.(PIN)
wp � 'i' Installed f
gal /day Commercial Use? Y
New eplace ❑Repair ❑ ition
Property Transfer U rade? Y
Bsmt Lift Pump? YFuture? Y
Jacuzzi? Y9 Garb Disvf / N
Soil Survey Map Unit
Soil Compacted? Y / N
Fill Soil? Y
Circle Soil Texture:
(Faster than 0.1 mpi)
Coarse Sand
Medium Sand
Loamy Sand 0.83
(FINE SAND
Sandy Loam 1.27
Loam 1.67
Silt Loam, Silt 2.00 �� _ „�
Sandy Clay Loam 2.2
Silty Clay Loam
Clay Loam
Silty Clay, Clay 4.2
(Slower than 120 mpi)
Soil dry enougr for
construction ,
SETBACKS: Pro Lines
Bldgs 10' to Tank Na & 20' to Drnfld7 Of
Well(s) setback > — 1 ( )not installed yet
Well Depth } '3_ (.3 `( )Orig. Well Record ( )Measured
Distance to Lake 144 CreeW4 Wetlan
Buried Water Pressure Lines 10' to Tanker Drnfld?
System located by Photos? Y P ? Y
SEPTIC / HOLDING TANK
❑ Existing
Liquid Cap a ity'. 1 compartment o
- y - Watertight?
Baffle Type: Fiberglass Sanitary-T Concr e
No. of Inspection Pipes / 4" i" iam. Tank Level ? t / N
No./Diam. Manhole Access 210 / Outlet / Qenter
No. & Height of Manhole Risers ---
New Tanks 4 ft or less below Final Grade rN
Pipes into Tank Sealed? with N
Riser into Tank Base S led? with■7� N
Outlet Effluent Filter? Y ype --
SS ' 4 '
Percent Slope 0 °/0 tion Method:, -C,
Dike Width Up Down Side
Clean RockC9N Depth ow Pipe 9" inches
ape " D9wnslope "
Inches to Mottling )3' Pipe /Spacing ! / //�` •J'i`
Final Cover Depth >6) "
Rock Bed Size. Supplier: ee..A..1 t>6x•c
Sand Base Size — Supplier:
Grading done: Rough �!
Seeding ( )Sod to be done by:
Bdrms or
Project Address
I hereby certify, as installer, that this adividual sewage treatment system
was installed according to the ap
Municipality's - -ge Treatme
all syste'- comp• ents forlat
Insta er
Sign i Dat "— `JiD
Insp
Sign Date
White copy:County Yellow:Owner Pink:lnstaller
o:\emgmt\forms\walm\ists\as-built-form.doc
d design, and as applicable, this
stem Qrdinance, & accurately locates
locati
Date I stalled fry Permit No. ? 3 "
/. o y� tAid i h 1c('
- _ _ (Dak Co Tax Info 651- 438 -4576, or www.co.dakota.mn.us)
4 ' 11 ,
7 2 , 4 ___-- 3C, V
A /•. 3 6 _ ,,q -3l
s
r - 4 - 73 i
✓
10
Line drawn from Tanks to Pump Truck Acces 100'
RESERVE AREA Cy Fenced Off?
Owner informed to preserve Reserve Area
Owner given Septic System Owner Guide? Y
T v . ? wr /252 ED. OR GRAVELLESS DRAINFIELD:
D ,,p 'o es'fevel? Y / N Type concrete / plastic
Depth 2/ ` Width S Y)( /k
Number of Trenches — Trench Bottom Level Y / N
Trench Lengths Spacing --
Rock Clean Y/ 12" overripe GeoTextile Covert
Depth Below Pipe? '" Soil ackfill Depth) t "
Gravelless Pipe Size? — Made by —
Chamber Size? — Made by —
Absorption Area: Sq Ft 7544 Line I Ft
Trench Bottom to mottling / bedrock? inches
PUMP TANK Made by ,� Capacity a
No. & Height of Risers -- /� Sealed? Y N
Pump Manufa turer Model #
Horsepower GPM Feet of Head /3
Cycles Per Day 3- Y Gallons Per Cycle /2
Size of Discharge Line
Type of Electrical Hookup •ost & box by tan
Alarm Lo atinn garag '!�:: semen
Alarm Alert Level Alarm / Other "
Water Meter? Y //
Cycle Counter? Y
•ett
Designated Registered
Professional Onsite
PCA Lic. N3/7 Company Name ` - 4ik. .&r ( T t4 d
Y 3-7Y3 Address /,O'-3t Q.57 , 2 J1I"•`
Approved: No / Yes with Conditions: