HomeMy WebLinkAbout2017 MPCA Soil and Percolation Testing c%1pava a4y- rp-eejo Y�W
ee,?v(red(
Joseph Olson D.B.A.
Rusty Olson's--Soil and Percolation Testing
g
Joseph J.Olson--MPCA License#810
11481 Riverview Rd.NE, Hanover,MN 55341
(763)498-8779 Fax (763)498-8290
July 8,2017
Hendel Homes
425 Old Crystal Bay Road S.
Orono,Hennepin County
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 periodically saturated soils were located at 18-20 inches(mottled soil).Due to the periodically
saturated soils,a pressurized mound system with 6 inches of rock will need to be installed to treat the septic
effluent.The bottom of the treatment area must be located at least 3'above the saturated soils.This system
is designed with 6 inches of rock
All neighboring wells are greater than 100' from proposed treatment areas.
The soils at a depth of 12"have a percolation rate averaging 13 MPI.
A 2250 gallon combination septic tank needs to be installed.
All new tanks need to be insulated if there is less than two feet of cover over the top of the tanks.Clean
outs must be installed on the end of the laterals for maintenance.
A 1300 gallon 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 weatherproof
enclosure.A warning device must be installed with light and sound devices;this is in case of a pump
failure.A flow measurement device must be installed. Including but not limited to a water meter,event
counter,running time clocks or electronically controlled dosing.
Nothing other than gray water,(laundry,showers,etc.)Human water and toilet tissue should be
disposed of into the septic tanks.Garbaee disposals are not recommended.Additives must not he
used,they may cause harmful damaue to your septic system. It is recommended that you nu nil) the
tank every year for 1 septic tank,every two years for two septic tanks,
Sincerely.
J
Joseph J.Olson
RECEIVE®
AUG 2 8 2017
CITY OF ORONO
/ I
Z } i -
o --
fI o
o - _ .80 N
MIS
_.
------------
-- --"" =
I ONY113M
31V3NI130 O�
O 3003 ^1
CA
r
O
a b
IY•
7V VS
� \ 1
b
h
1 I ` 91'6
3 _ __ - - 3AOY438 JS o M .379,99.88
03HS ONUSi
0
cn
0
rn
f
t
'e t
O
�1 IIt
l 3 yO n
d ta LU W
1 � y � � w K .. � •t t�' f kms- �
j �' • ` t w y LO e
VI r
it C! i
i w�
a Ncr-
i '�,�,,� '•moi—•-----... ."" � �?�, � �j tp�
Co 3 tti qty
i
rt t 1
• fes:
N d
t
tCL
If
06
c iv
2011 purple code Mound Design
www SepticResource.com (vers 15.2)
Property Owner: Hendel Homes Date: 7/7/2017
Site Address: 425 Old Crystal Bay Road S. PID: 0411723310001
Comments:
instructions: = =enter data =adjust if desired = computer calculated - DO NOT CHANGE!
1) bedroom Type �I Residential System
2) 750 GPD design flow
3) Yes Garbage disposal or pumped to septic 50% larger tank with multiple comp/tanks
41 2250 Gat Septic tank (code minimum) 2250 Gal Septic tank(design size / LUG req'd)
Tank options: none
1.2 GPD/ft2 mound sand loading rate contour loading rate of 12 req's a min 62.5 ft. long rockbed
c„ 10.0 ft rockbed width 63.0 ft rockbed length
7) 3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both)
end feed manifold connection
8) laterals 61.0 feet long 21.0 perfs / lateral 63 perfs total
(1/2 a pert means the first pert starts at the middle feed manifold)
1)) 7/32 inch perfs at =feet residual head gives 0.56 gpm flow rate per perforation
for this perf size lY spacing, i3 pipe size on tine 12, max perfs/lateral= 30 , line#8 must be less Or,
I n 4.0 doses per day (4 minimum)
1 n 188 gallons per dose (treatment volume)
2.00 5x
12) 2.00 inch diameter laterals must be used to meet"4x pipe volume" requirement
2.00 3x
i 1) 185 feet of F 2.0 inch supply line leads to =gallons of drainback volume
(Tip: "top feed"manifold to control the drainback)
141 219 gallons TOTAL pump out volume (treatment+drainback)
li) 19 feet vertical lift from pump to mound laterals, leads to a:
16) 36 GPM 32 feet of head, Pump requirement (note: >50gpm may require an extra 3-6'of head)
M 750 gal Dose tank (code minimum) 1300 gal Dose tank(design size / LUG req'd) at 25.49 gpi
leads to a
Is 8.6 inch swing on Demand float, or timed dosing of6.1 min ON (confirm pump rate with drawdown
(this delivers Average flow, =70%of Peak design flow) hrs OFF test and adjust as necessary)
19, 12 inches from bottom of tank to"Pump OFF"float
2u) 21 inches from bottom of tank to"Pump ON"float, or 12 inches to'Timer ON"float if time dosed
�1, 24 inches from bottom of tank to"Hi Level"float, or 34 inches to"Hi Level"float if time dosed
11) 688 gallons reserve capacity (after High Level Alarm is activated)
23i 0.45 gpd/ft2 Absorption area Soil Loading Rate, which gives a mound ratio of 2.7 (minimum)
(this must match the soil boring log) desired mound ratio 2.7
24) percent site slope (0-20% range) F-5 ](%downslope site slope, if different than upstope)
s) 18 inches, or =ft. to Redox or other limiting condition (need at least 12"to be a Type 1)
Treatment zone contains inches of 0%soil credit, and =inches of 50%soil credit. Giving a:
26) 18 inch, or =ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONS IN
27) 27.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:)
16) 0.0 ft. upstope and sidestope
17.0 ft. Downslope
Individual slope ratios give BERM widths (topsoit beyond rockbed)of:
29) 4:1 upstope ratio12 ft. upstope berm
30 4:1 sideslope 16 ft. sideslope berms
)i 4:1 downslope 21 ft. downslope berm
32) Overall Dimensions: 10.0 ft. wide by 63.0 ft. long Rock bed
43 ft. wide by 95 ft. long Mound footprint
4" inspection pipe
18" cover on top
U slope berm ='I Downslope berm 21
12" cover on sides
(6"loamy cap&6"topsoil)
1.5 dean sand lift
1.5 Depth to Limitiog
ILI Absorption Width 27.0
Note:
For 0 to t%slopes, Absorption Width is measured from the Bedequally in both directions.
For slopes >1%, Absorption Width is measured downhill from the upslope edge of the Bed.
33) Rock Bed:
10.0 ft. by 63.0 ft. by inches under pipe, plus 20%gives21 yd'or"1.4= 29 ton
34) Mound Sand: (note: volume is based on 3:1/4:1 slope from top of rockbed, Exchange sand for loamy cap if desired)
33.5 up + 72.5 downslope + 13.3 ends+ 40.8 under rock= 192 yd'or`1.4= 269 ton
plus 20%
;;, Loamy Cap:
39 ft. by 9t ft. 6"deep, plus 20%gives 79 yd'or`1.4= 1-1 17 ton
36) Topsoil:
43 ft. by 95 ft. 6"deep, plus 20%gives 91 yd'or"1.4= 127 ton
I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws.
Rusty olson's Soil Et Perc 810 7/7/2017
finer Signature Company License# Date
Installer Summary
2250 gallon Septic tank (minimum) Tank options: none
aux larger lanK wnn muuIpie comp/lanKS
1300 gallon Dose tank (minimum) at 25.49 gpi
36 JGPM F 32 ft. of head, Pump required
8.6 inch swing on Demand float which translates to roughly 5.3 inches of float tether length
if time dosing is required —F-6-—1minutes ON time ti hours OFF time
21 inches from bottom of tank to"pump ON"float, or 12 inches to"timer ON"float
24 inches from bottom of tank to"Hi Level Alarm"or =inches to"Hi level alarm"if time dosed
185 ft. of r 2.0 inch supply tine with end feed manifold connection
(Tip: "top feed"manifold to control drainback)
18 inch, or 1.5 ft. Sand Lift Mound
10.0 ft. wide by 63.0 ft. long Rock bed
3 laterals 2.00 inch diameter 61.0 ft. long 3.0 ft. lateral spacing
7/32 inch perfs 3.0 ft. perforation spacing
No Effluent filter ti alarm
3 clean out a valve box assemblies
27.0 ft.Total sand ABSORPTION width (minimum)
0.0 ft. upslope and sideslope (sand beyond rockbed, minimum)
17.0 ft. Downslope (sand beyond rockbed, minimum)
Specific slope ratios give BERM widths (topsoil beyond rockbed)of:
4:1 upslope ratio12 ft. upslope berm
4:1 sideslope 16 ft. sideslope berms
4:1 downstope 21 ft. downslope berm
4" inspection pipe
18" cover on top
U slo berm 12 Downslope berm 21
12" cover on sides
(6"loamy cap&6"topsoil)
1.5 Clear,sand lift
1.5 Depth to .uniting
Absorption Width z7.o Y
Note:
For 0 to 1%slopes, Absorption Width is measured from the Bedequally in both directions.
For slopes >1%, Absorption Width is measured downhill from the upslope edge of the Bed.
Rock Bed: 21.0 yd or*1.4= 29 ton 6 inches under pipe
Mound Sand: 192 yd or*1.4= 269 ton calculation based on 3:1/4:1 slope from top of rockbe,
Loamy Cap: 79 yd or*1.4= 111 ton 6"deep
Topsoil: 91 yd or*1.4= 127 ton 6"deep
INSPECTOR CHECKLIST - mound
Qt)Ula Lrystat tray Koaa 5.
WELL setbacks: 20'to pressure tested sewer line (5 psi for 15 min)
50'to everything 100'to dispersal area with shallow well
PROPERTY LINES setback: 10'to everything
Road setback: platted: 10'prop line. Metes Et bounds: out of road easement, or outer ditch.
LAKE/BLLJFF setback: 20'for bluff. Lakes: GD_, RD_, NE_. Protected wetland_.
Building setbacks: 10'for everything, 20'for dispersal area.
WATER LINE under pressure st 10'to bed,tank li sewer line. (else sewer line > 12"below)
Sewer line ix baffle connection (no 90's, 3'between 45's, slope min 1"in 8', max 2"in 8')
(no depth reqs, clean out every 100', Sch 40 pipe)
0 Septic tank and risers (water tight, insulated, proper depth, existing verified by pumping)
Mfg 2250 gallons none
Riser over outlet, riser over inlet or center, and 6"+ inspection pipe over any remaining baffles.
No effluent filter 8 alarm
Dose tank risers and piping (water tight, insulated, proper depth, drainback)
Mfg 1300 gallons
El dose pump 36 gpm 32 head VERIFY PUMP CURVE 6.1 min ON 9 hr OFF
float setting drop 8.6 inches at 25.5 gpi "DESIGNED" 5.3 inches approx float tether length
219.0 gal dose divided by gpi "INSTALLED"= inches float drop (field corrected
LABEL pump requirements and drawdown on riser or panel
Cam lock reachable from grade- 30"max. J-hook weep hole. Supply line access (no hard 90's)
2.0 inch supply pipe: Sch40, sloped 1/8"+, supported by 4"sch40 sleeve or compacted, and buried 6"+.
splice box / control panel / electrical connections
flow measurement: CT, ETM, time dosed, home water meter
mound absorption area rough up
mound rock dimensions 10.0 X 63.0
Sand lift depth 18 inches. (Jar test : 2"sand leaves - 1/8"silt after 30 min)
Absorption Sand beyond rock 0.0 upslope 17.0 downslope
El Bermed topsoil beyond rockbed 12 upslope 16 sideslope 21 downslope
cover depth of 12-18"+ VERIFY
3 laterals (1-2'from edge of rock)
2.00 inch pipe size (Sch40 pipe&fittings)
3.0 ft lateral spacing
8 7/32 inch perforations
3.0 ft perforation spacing
Air inlet at end of laterals, and at top feed manifold if necessary. VERIFY
clean outs (no hard 90's)
4" inspection pipe to bottom of rock, anchored VERIFY
Abandon existing system - if necessary �Re-use existing tank certification
monitoring plan and type
well abandonment form - if necessary
System Elevations
benchmark `
- - SHWT
Mound r
(Grade elevations are existing. if a loamy cap
different final grade is desired it should lateral
be shown and described here.)
bottom rock
grade (at upslope rock bed)
SHWT (at upslope rock bed)
r
s
r r �
Sewer pipe
exiting house Septic Tank Septic Tank (ii applicable) Pump Tank
Grade Grade Grade Grade
Pipe inlet inlet inlet
Tank bottom Tank bottom Tank bottom
Soil Observation Log
%vwNN.ScpticRcsource.com vers 12.4
Owner Information
Property Owner/project: Hendel Homes Date 7/2/2017
Property Address/PID: 425 Old Crystal Bay Road S.
Soil Survey Information ❑refer to attached soil survey
Parent matl's Q Till ❑Outwash ❑ Lacustrine ❑Alluvium ❑Organic ❑ Bedrock
landscape position: ❑Summit 7 Shoulder ❑Side slope ❑Toe slope
soil survey map units: L22C'2 slope 4-6 °io direction-Linear-convex
Soil Log#1
Q Boring ❑ Pit Elevation 982.5 Depth to SHWT 18 inches
Depth(in) Texture fragment% matrix color redox color consistence grade shape
0-6 Topsoil <35 1Oyr4 2 Loose Loose Single grain
6-18 Clay Loam <35 IOyr5i4 Friable Strong Blocky
18-24 Clay Loam <35 1 Oyr5,4 10y4,18.1-61 0), Firm Strong Blocky
j5 loose loose single grain
35-50
friable weak granular blocky
>50 firrtt moderate prismatic platy
rigid strong massive
<J5 loose loose single grain
35-50 -
friable weak granular blocky
>50 firm moderate prismatic platy
rigid strong massive
Comments:
425 Old Crystal Bay Road S. Soil Log#2
F,-,] Boring ❑ Pit Elevation 982.5 Depth to SHWT 18 Inches
Depth(in) Texture fragment% matrix color redox color consistence grade shape
0-6 Topsoil <35 I Oyr4%2 Loose Loose single grain
6-18 Clay Loam <35 10yT54 Friable Strong Blocky
18-24 Clay Loam <35 1OvT5!4 10y4?8,1-6'I0y Firm Strong Blocky
<35
-15-50 Finn Strong Prismatic
>50
<35 loose loose single grain
35-50 friable weak granular blocky
firm moderate prismatic plan
�0
rigid Istrong massive
425 OId Crystal Bay Road S. Soil Log#3
E] Boring ❑ Pit Elevation 980.6 Depth to SHWT 18 Inches
Depth(in) Texture fragment% matrix color redox color consistence _rade shape
0-6 Topsoil <35 1OyT312 Loose Loose Single gain
6-12 Clay Loam tis IOyT413 FriableStrong Blocky
12-18 Clay Loam <35 1Oyr5 4 Friable Strong Blocky
18-24 Clay Loam <35 1Oyr5/4 IOy4'8,1-6'IOy Firm Strong Prismatic
<35
loose loose single grain
friable weak granular blocky
35-50
>50 finn moderate prismatic platy
rigid strong massive
l hereby certifi; i was completed in accordance with t/"V 7080 and any local rey's.
x�
Rusty Olson's Soil & Perc 810
igner Signature Company license#
-- -rr
425 Old Crystal Bay Road S. Soil Log#4
21 Boring ❑Pit Elevation 980.6 Depth to SHWT 18 inches
Depth(in) Texture fragment% matrix color redox color consistence grade shape
0-6 Topsoil <35 IOyr312 Loose Loose Single grain
6-12 Clay Loam <35 10yT43 Friable Strong Blocky
12-18 Clay Loam <35 10yr5'4 Friable Strong Blockv
18-24 Clav Loam <35 IOyT5 4 10y41'8.1-6`IOv Finn Strong Prismatic
<35 loose loose single grain
friable weak granular blocky
35-50
firm moderate prismatic platy
X50 rigid I strong I
Itlassivc
425 Old Crystal Bar Road S. Soil Log 95
Q Boring ❑pit Elevation 982.5 Depth to SHWT 18 Inches
Depth(in) Texture fragment°o matrix color redox color consistence grade shape
0-6 Topsoil <35 IOyr3121 Loose Loose Single grain
6-12 Clay Loam <35 10}r413 Friable Strong Blocky
12-18 Clay Loam <35 1Oyr5'4 Friable Strong Blocky
18-24 Clay Loam <35 1Oyr5'4 10y4'8.1-6110y Finn Strong Prismatic
<35 loose loose single grain
35-50
friable weak granular blocky
firm moderate prismatic platy
X50 rigid strong massive
1 hereby certifi•this work teas completed in accordance with;1N'080 and ant local reqs.
Rusty Olson's& Perc Testing 810
saner Signature Company License 4
Soil Observation Log
w%Nw.Septiclkesource.com%ers 12.4
Owner Information
Property Owner/project: Hendel Homes Date 7/2/2017
Property Address!PID: 425 Old Crystal Bay Road S.
Soil Survey Information ❑refer to attached soil survey
Parent matl's: Till ❑Outwash ❑Lacustrine ❑Alluvium ❑Organic ❑ Bedrock
landscape position: ❑Summit F,_J Shoulder ❑Side slope ❑Toe slope
soil survey map units: 1,22C2 slope 4-6 °gib direction- Linear-convex
Soil Log#6
Q Boring ❑ Pit Elevation 979.2 Depth to SHWT 20 Inches
Depth(in) Texture fragment% matrix color redox color consistence grade shape
0-6 Topsoil <35 1Oyr312 Loose Loose single grain
6-12 Clay Loam <35 1OT4t3 Friable Strong Blockv
12-20 Clay Loam <35 10)T5!4 Friable Strong Block-,
20-26 Clay Loam <35 1ONT5 4 I0y4/8,1-6/10y Finn Strong Prismatic
<35 loose loose single grain
35-50 friable weak granular bltvkv
Finn moderate prismatic platy
>SQ
rigid strong massive
Comments:
Percolation Test Data Sheet
Lic.*810
Percolating test readings made by: Rusty Olson's Perc. starting at 1:05 P.M. On 7/03/17
Location: 425 Old Crystal Bay Road S.
Hole number: 1
Date hole was prepared: 7/02/17
Depth of hole bottom_12"_inches, Diameter of hole 6"_inches.
Soil data from test hole:
Depth, inches Soil texture
0-6 Topsoil 10yr4/2
6-12 Clay Loam 10yrS/4
Method of scratching side wall: Knife
Depth of gravel in bottom of hole 2 inches:
Date of initial water filling 7/02/17 depth of initial water filling 12 inches above the 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 tests 6 inches
Time Time Depth r in H2O Perc Rate
1:19 1:49 6" 1.5 20.0
1:56 2:26 6" 1.5 20.0
2:27 2:57 6" 1.5 20.0
AVFRAGE PERC. RATE 20.0 MPI
Percolation Test Data Sheet
Lic.#810
Percolating test readings made by: Rusty Olson's Perc. starting at 1:05 P.M. On 7/03/17
Location: 425 Old Crystal Bay Road S.
Hole number: 2
Date hole was prepared: 7/02/17
Depth of hole bottom_12"_inches, Diameter of hole_6"_inches.
Soil data from test hole:
Depth, inches Soil texture
0-6 Topsoil 10yr4/2
6-12 Clay Loam 10yr5/4
Method of scratching side wall: Knife
Depth of gravel in bottom of hole 2 inches:
Date of initial water filling 7/02/17 depth of initial water filling 12 inches above the 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 tests 6 inches
Time Time Depth Drop in H2O Perc Rate
1:20 1:50 6" 2.3 13.0
1:55 2:25 6" 2.2 13.6
2:28 2:58 6" 2.2 13.6
AVERAGE PERC. RATE 13.4 MPI
Percolation Test Data Sheet
Lic.#810
Percolating test readings made by: Rusty Olson's Perc. starting at 1:05 P.M. On 7/03/17
Location: 425 Old Crystal Bay Road S.
Hole number: 2
Date hole was prepared: 7/02/17
Depth of hole bottom_12"_inches, Diameter of hole 6"_inches.
Soil data from test hole:
Depth, inches Soil texture
0-6 Topsoil 10yr4/2
6-12 Clay Loam 10yr5/4
Method of scratching side wall: Knife
Depth of gravel in bottom of hole 2 inches:
Date of initial water filling 7/02/17 depth of initial water filling 12 inches above the 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 tests 6 inches
Time Time Depth Drop in H20 Perc Rate
1:20 1:50 6" 2.3 13.0
1:55 2:25 6" 2.2 13.6
2:28 2:58 6" 2.2 13.6
AVSRAGE PERC. RATE 13.4 MPI
Percolation Test Data Sheet
Lic.#810
Percolating test readings made by: Rusty Olson's Perc. starting at 1:05 P.M. On 7/03/17
Location: 425 Old Crystal Bay Road S.
Hole number: 3
Date hole was prepared: 7/02/17
Depth of hole bottom_12"_inches, Diameter of hole_6"_inches.
Soil data from test hole:
Depth, inches Soil texture
0-6 Topsoil 10yr3/2
6-12 Clay Loam 10yr4/3
Method of scratching side wall: Knife
Depth of gravel in bottom of hole 2 inches:
Date of initial water filling 7/02/17 depth of initial water filling 12 inches above the 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 tests 6 inches
Time Time Depth Drop in H2O Perc Rate
1:21 1:51 6" 3.2 9.4
1:54 2:24 6" 3.1 9.7
2:29 2:59 6" 3.0 10.0
AVERAGE PERC. RATE 9.7 MPI
Percolation Test Data Sheet
Lic.#810
Percolating test readings made by: Rusty Olson's Perc. starting at 1:05 P.M. On 7/03/17
Location: 425 Old Crystal Bay Road S.
Hole number: 4
Date hole was prepared: 7/02/17
Depth of hole bottom_12"_inches, Diameter of hole_6"_inches.
Soil data from test hole:
Depth, inches Soil texture
0-6 Topsoil 10yr3/2
6-12 Clay Loam 10yr4/3
Method of scratching side wall: Knife
Depth of gravel in bottom of hole 2 inches:
Date of initial water filling 7/02/17 depth of initial water filling 12 inches above the 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 tests 6 inches
Time Time Depth Drop in H2O Perc Rate
1:22 1:52 6" 3.5 8.6
1:53 2:23 6" 3.4 8.8
2:30 3:00 6" 3.3 9.0
AVERAGE PERC. RATE 8.8 MPI