HomeMy WebLinkAboutSE22-000028 Design V2.0 with markupsDesign Summary Page
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I+� MINNESOTA POLLUTION
CONTROL AGENCY
1. PROJECT INFORMATION v 04.01.2020
Property Owner/ Client:
ZorIng approval
Project ID:
Custom One Homes
5E22-004028
OIISIrE
Date: 11/08/22
:u.ai1
SEwAGC
Phone: 952-486-0567
TNEATYINT
-_
2. DESIGN FLOW Ft WASTE STRENGTH Attach data / estimate basis for Other Establishments
PR oriftAY
BOD: 170 mg/L TSS: 60 mg/L Oil Ft Grease: 25 mg/L
Treatment Level: E=Select Treatment Level C for residential septic tank effluent
Design Summary Page
[ohe tie :. P t' nt area
-anrcc,
- � ana tlarnac••
cknc, etc
I+� MINNESOTA POLLUTION
CONTROL AGENCY
1. PROJECT INFORMATION v 04.01.2020
Property Owner/ Client:
Project ID:
Custom One Homes
Site Address:
Date: 11/08/22
2700 White Oak Circle Orono, Mn. 55356
Email Address:
Phone: 952-486-0567
erich@customonehomesmn.com
2. DESIGN FLOW Ft WASTE STRENGTH Attach data / estimate basis for Other Establishments
Design Flow: 750 GPD Anticipated Waste Type: Residential
BOD: 170 mg/L TSS: 60 mg/L Oil Ft Grease: 25 mg/L
Treatment Level: E=Select Treatment Level C for residential septic tank effluent
3. HOLDING TANK SIZING
Minimum Capacity: Residential =400 gal/bedroom, Other Establishment = Design Flow x 5.0, Minimum size 1000 gallons
Code Minimum Holding Tank Capacity:Gallons in Tanks or Compartments
Recommended Holding Tank Capacity:Gallons in Tanks or Compartments
Type of High Level Alarm: (Set @ 75% tank capacity)
Comments:
4. SEPTIC TANK SIZING
-------------------........................................................................................................................
A. Residential dwellings:
' Number of Bedrooms (Residential):
Code Minimum Septic Tank Capacity: 2500 Gallons in Tanks or Compartments
Recommended Septic Tank Capacity: 2500 Gallons in Tanks or Compartments
Effluent Screen Et Alarm (Y/N): Yes Model/Type:
-------------------------------------------------------.----------------------------------------------------------------------------------:
---------------------------------------------•-------..............-..--------......-...-------------------------------------------------..
B. Other Establishments:
Waste received by: GPD x =Days. Hyd. Retention Time
' Code Minimum Septic Tank Capacity: Gallons In Tanks or Compartments '
Recommended Septic Tank Capacity: Gallons In Tanks or Compartments '
Model/Type:
Effluent Screen Et Alarm (Y/N): IJ
5. PUMP TANK SIZING
Pump Tank 1 Capacity (Minimum): 1000 Gal Pump Tank 2 Capacity (Minimum):Gat
Pump Tank 1 Capacity (Recommended): 1000 Gal Pump Tank 2 Capacity (Recommended):Gal
Pump 1 36.0 GPM Total Head 16,1 ft Pump 2GPM Total Headft
Supply Pipe Dia.2.00 in Dose Vol: 150.0 gal Supply Pipe Dia. Dose Vol: Gal
' prenire.•.,••
ST.vrPC:F y
TRtATML»T
PROGRAM
#AINNESOTA POLLUTION
Design Summary Page M11 CONTROL AGENCY
6. SYSTEM AND DISTRIBUTION TYPE Project ID:
Soil Treatment Type: Mound Distribution Type: Pressure Distribution -Level
Elevation Benchmark: 100 ft Benchmark Location: Large Basswood 27' NE 82
MPCA System Type: Type I Distribution Media: Rock
Type III/IV Details:
7. SITE EVALUATION SUMMARY:
---------------------------- ---------------------- ............................................................................
Describe Limiting Condition: Redoximorphic Features/Saturated Soils
Layers with >35% Rock Fragments? (yes/no) No If yes, describe below: % rock and layer thickness, amount of
soil credit and any additional information for addressing the rock fragments in this design.
:Note:
Depth Depth Elevation of Limiting Condition
Limiting Condition: 12 inches 1.0 ft 101.00 ft
Minimum Req'd Separation: 36 inches 3.0 ft Elevation Critical for system compliance
r
Code Max System Depth: Mound inches -2.0 ft 104.00 ft
;This is the maximimum depth to the bottom of the distribution media for re4uired separation_ Negative Depth (ft} means it must be a mound.
................_.................
........................................................................
Soil Texture: Loam
Soil Hyd. Loading Rate: 0.60 GPD/fe Percolation Rate: 18.00 MPI
Contour Loading Rate: 12 Note:
Measured Land Slope: 3.0 % Note:
Comments:
8. SOIL TREATMENT AREA DESIGN SUMMARY
Trench:
Dispersal Areaft 2 Sidewall Depthin Trench Widthft
Total Lineal Feetft No. of Trenches Code Max. Trench Depthin
Contour Loading Rateft Lengthft Designed Trench Depth=in
Bed:
Dispersal Areaft Sidewall Depthin Maximum Bed Depthin
Bed Widthft Bed Lengthft Designed Bed Depth =in
Mound:
Dispersal Area 625.0 ft2 Bed Length 62.5 ft Bed Width 10.0 ft
Absorption Width 20.0 ft Clean Sand Lift 2.0 ft Berm Width (0-1%)ft
Upslope Berm Width 10.5 ft Downslope Berm 14.0 ft Endslope Berm Width 12.3 ft
Total System Length 87.1 ft System Width 34.5 ft Contour Loading Rate =gal/ft
O posITr
5, -wadi dek 4116L
TREATMENT
PROGRAM
$ MINNESOTA POLLUTION
Design Summary Page $ CONTROL AGENCY
Bed Widthft Bed Lengthft Finished Heightft
Contour Loading Rategal/ft Upslope Bermft Downslope Bermft
Endslope Berm E=ft System Length =ft System Width =ft
Level Ft Equal Pressure Distribution
No. of Laterals Perforation SpacingL _ Ift Perforation Diameter 7132 in
Lateral Diameter 2.00 in Min Dose Volume 123 gal Max Dose Volume 188 gal
Non -Level
Lateral 1
Lateral 2
Lateral 3
Lateral
Lateral 5
Lateral
and Unequal
Pressure Distribution
Minimum Dose
Volume
gal
Maximum Dose
Volume
FIgal
Elevation
{ft)
Pipe Size
(in)
Pipe
Volume
(gal/ft)
Pipe
Length (ft)
Perf Size
(in)
Spacing
(ft)
Spacing
(in)
Ll
F_ I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws.
Dave Brown DRB 3549 11/8/2022
9. Additional Info for At -Risk, HSW or Type IV Design
A. Starting BOD Concentration = Design Flow X Starting BOD (mg/L) X 8.35 -L1,000,000
�gpd X mg/L X 8.35 , 1,000,00 = lbs. BOD/day
B. Target BOD Concentration = Design Flow X Target BOD (mg/L) X 8.35 : 1,000,000
�gpd X �mg/L X 8.35 _ 1,000,00 = lbs. BOD/day
Lbs. BOD To Be Removed:
PreTreatment Technology: `Must Meet or Exceed Target
Disinfection Technology: `Required for Levels A ix B
C. Organic Loading to Soil Treatment Area:
=mg/L X =gpd x 8.35: 1,000,000fe _ lbs./day/W
10. Comments/Special Design Considerations:
Properly abandon existing tanks. Do not drive on STA.
(Designer) (Signature) (License #) (Date)
9. Additional Info for At -Risk, HSW or Type IV Design
A. Starting BOD Concentration = Design Flow X Starting BOD (mg/L) X 8.35 -L1,000,000
�gpd X mg/L X 8.35 , 1,000,00 = lbs. BOD/day
B. Target BOD Concentration = Design Flow X Target BOD (mg/L) X 8.35 : 1,000,000
�gpd X �mg/L X 8.35 _ 1,000,00 = lbs. BOD/day
Lbs. BOD To Be Removed:
PreTreatment Technology: `Must Meet or Exceed Target
Disinfection Technology: `Required for Levels A ix B
C. Organic Loading to Soil Treatment Area:
=mg/L X =gpd x 8.35: 1,000,000fe _ lbs./day/W
10. Comments/Special Design Considerations:
Properly abandon existing tanks. Do not drive on STA.
(Designer) (Signature) (License #) (Date)
-IlkMound Design Worksheet
SCWiGiMINNESOTA POLLUTION
YMC �:7MI Nr _ 11 p/ Slope
M'•, CONTROL AGENCY
I /0 l F'
1. SYSTEM SIZING: Project ID: v 04.01.2020
A. Design Flow:
750 GPD
B. Soil Loading Rate:
O.bO GPD/ft2
C. Depth to Limiting Condition
1.0 ft
D. Percent Land Slope:
3.0 %
E. Design Media Loading Rate:
1.2 GPD/ft2
F. Mound Absorption Ratio:
2.00
Table I
MOUND CONTOUR LOADING RATES-
Moasurod
Treatment LevN C
TCxtura - dortrod
Abforytlgt
Maund
Area LwdinS Absorption
(NR,1 Ram
Contour
Pari Rato
OR
mound absorption ratio
01 to 5
Loading
1.ti 1
01 to 5 (hne SOHO
and �0�e hrlp Saadi
0.6 2
Rata:
5 WWI
OR
i.0. 1.3. 2.o. 2.:. 2.6
s12
61-120 mpi
5.0
112
120 mpg
>5.0•
0.46 2.6
TABLE IXa
LOADING RATES FOR DETERMINING BOTTOM ABSORPTION AREA
AND ABSORPTION RATIOS USING PERCOLATION TESTS
Percolabon Rete
( 1
Treatment LevN C
Treatment Levet A. A-2. 6.
Abforytlgt
Maund
Area LwdinS Absorption
(NR,1 Ram
Ab --*ion
lAorptb
Area ate Absorption
(�'i Ratio
1
01 to 5
1-2 1
1.ti 1
01 to 5 (hne SOHO
and �0�e hrlp Saadi
0.6 2
61015
0.7B 1.6
1 1.6
16 to 30
CA 2
0.78 2
31 to 45
0.6 2.4
0.78 2
45 t0 60
0.46 2.6
0.6 2.6
61 t0 120
- 6
0.3 6.3
"Systems with these values are not Type I systems.
Contour Loading Rate (linear loading rate) is a
recommended value.
2. DISPERSAL MEDIA SIZING
A. Calculate Dispersal Bed Area: Design Flow = Design Media Loading Rate
750 GPD y 1.2 GPD/ft2 = 625 ft,
If a larger dispersal media area is desired, enter size: fi25 ft
B. Enter Dispersal Bed Width: 10.0 ft Can not exceed 10 feet
C. Calculate Contour Loading Rate: Bed Width X Design Media Loading Rate
10 ft, X 1.2 GPD/ft2 = 12.0 gal/ft Can not exceed Table 1
D. Calculate Minimum Dispersal Bed Length: Dispersal Bed Area _ Bed Width
525 ft2 - [710.0 ft = 62.5 ft
3. ABSORPTION AREA SIZING
A. Calculate Absorption Width: Bed Width X Mound Absorption Ratio
10.0 Ift X 2.0 = 20.0 ft
B. For slopes >1%, the Absorption Width is measured downhill from the upslope edge of the Bed.
Calculate Downslope Absorption Width: Absorption Width - Bed Width
20.0 Ift - 10.0 ft = 10.0 ft
4. DISTRIBUTION MEDIA: ROCK Project ID:
A. Rock Depth Below Distribution Pipe
6in 0.50 ft
S. DISTRIBUTION MEDIA: REGISTERED TREATMENT PRODUCTS: CHAMBERS AND EZFLOW
A. Enter Dispersal Media:
B. Enter the Component: Length: ft Width:ft Depth:ft
C. Number of Components per Row = Bed Length divided by Component Length (Round up)
ft + ft = components/row Check registered product
D. Actual Bed Length = Number of Components/row X Component Length: information for specific
components X ft = I_J application details and
E. Number of Rows = Bed Width divided by Component Width (Round up) design
ft - ft = rows Adjust width so this is a whole number.
F. Total Number of Components = Number of Components per Row X Number of Rows
X � components
6. MOUND SIZING
A. Clean Sand Lift: Required Separation - Depth to Limiting Condition = Clean Sand Lift (1 ft minimum)
3.0 ft - 1.0 ft = 7.0 ft Design Sand Lift (optional): ft
B. Upslope Height: Clean Sand Lift + Depth of Media +Depth to Cover Pipe+ Depth of Cover (1 ft)
2.0 J ft + 0.50 ft + 0.3 ft + 1.0 ft = 3.8 ft
Land Slope % 0 11 2 1 3 1 4 L 5 6 7 1 8 9 10 1 11 1 12
Upslope Berra 3:1 3.00 2.91 2.83 2.75 2.68 2.61 2.54 2.48 2.42 2.36 2.31 2.26 2.21
Ratio 4:1 4.00 3.8513.701 3.57 3.45 3.33 3.23 3.121 3.0312.941 2.86 12.78 2.70
C. Select Upslope Berm Multiplier (based on land slope): 2.75
D. Calculate Upslope Berm Width: Multiplier X Upslope Mound Height
2.75 ft X 3.8 ft = 10.5 ft
E. Calculate Drop in Elevation Under Bed: Bed Width X Land Slope - 100 = Drop (ft)
10.0 ft X 3.0 % + 100 = 0.30 ft
F. Calculate Downslope Mound Height: Upslope Height + Drop in Elevation
3.8 Ift +1 0.30 Ift =1 4.1 ft
Land Slope % 0 1 1 12 3 4 5 1 6 1 7 1 8 9 10 11 12
Downslope 3:1 3.00 1 3.09 1 3.19 1 3.30 3.41 .531 3.66 3.80 3.95 4.11 4.29 4.48 4.69
Berm Ratio 4:1 4.00 4.17 1 4.35 1 4.54 1 4.76 5.00 15.26 1 5- 61 5.88 1 6.25 1 6.67 1 7.14 7.69
G. Select Downslope Berm Multiplier (based on land slope): 3.30
H. Calculate Downslope Berm Width: Downslope Multiplier X Downslope Height
3.30 x 4.1 ft = 13.5 ft
I. Calculate Minimum Berm to Cover Absorption Area: Downslope Absorption Width + 4 feet
t0.0 ft + ft = ]4.0 ft
J. Design Downslope Berm = greater of 4H and 41: 14.0 ft
K. Select Endslope Berm Multiplier: 3.00 (usually 3.0 or 4.0)
L. Calculate Endslope Berm X Downslope Mound Height = Endslope Berra Width
3.00 ft X 4.1 ft = 12.3 ft
M. Calculate Mound Width: Upslope Berm Width + Bed Width + Downslope Berm Width
10.5 1 ft + 10.0 ft + 14.0 ft = 34.5 ft
N. Calculate Mound Length: Endslope Berm Width + Bed Length + Endslope Berm Width
12.3 1 ft + 62.5 ft + 12.3 it = 87.1 ft
7.
MOUND DIMENSIONS
Project ID:
Upslope
--
4
10.5
-.
`•
I
Ends)ope
Endslqpe
Dispersal Bed:
,
12�
3
1z.3
10.0 x
62.5
F'
--------------Downslope-------------------------
-------
Total Mound Length
87.1
4' inspection Dips
tlaslooc be,
— 18' cover on top
Downslo berm
10.5
14.0
12' cover
c,3 sides
W topsoil)
2.0
Clean sa-►d bft
Dcp:h to restli<:w 1.0
Absorption Width
-
Clean Sand
20.0
Comments:
o u„ F I,
Sen :..L
7
T&ii arras Nr1111illi;�
P.ro�.Rwa
�\.
Mound Materials Worksheet MINNESOTA POLLUTION
m CONTROL AGENCY
rrojec[iu: v 04.01.2020
A. Rock Volume: (Rock Below Pipe + Rock to cover pipe (pipe outside dia + -2 inch)) X Bed Length X Bed Width = Volume
( 6 in + in ) _ 12 X 1 62.5 Ift X 1 10.0 ft = 1 312.5 ft3
Divide ft3 by 27 ft3 /yd 3 to calculate cubic yards: 312.5 ft' : 27 = 1 11.6 yd'
Add 30% for constructability: 11.6 yd X 1.3 = 15.0 yd'
B. Calculate Clean Sand Volume:
Volume Under Rock bed: Average Sand Depth x Media Width x Media Length = cubic feet
2.0 ft X L 10.0 ft X 1 62.5 ft = 1218.8 ft3
For a Mound on a slope from 0-1%
Volume from Length = ((Upslope Mound Height - 1) X Absorption Width Beyond Bed X Media Bed Length)
ft - 1) X X I ft =
Volume from Width = ((Upslope Mound Height - 1) X Absorption Width Beyond Bed X Media Bed Width)
ft - 1) X I X ft =
Total Clean Sand Volume: Volume from Length + Volume from Width + Volume Under Media
ft3 + F ft3 + I ft3 = ft3
For a Mound on a slope greater than 1%
Upslope Volume: ((Upslope Mound Height - 1) x 3 x Bed Length) + 2 = cubic feet
((1 3.8 ft - 1) X 3.0 ft X 1 62.5 ) + 2 = 262.5 ft'
Downslope Volume: ((Downslope Height - 1) x Downslope Absorption Width x Media Length) + 2 = cubic feet
((1 4.1 ft - 1) X 1 10.0 Ift X 1 62.5 J)+ 2 =1 968.8 ft3
Endslope Volume: (Downslope Mound Height - 1) x 3 x Media Width = cubic feet
(1 4.1 ft - 1 ) X 3.0 ft X 1 10.0 ft = 93.0 ft3
Total Clean Sand Volume: Upslope Volume + Downslope Volume + Endslope Volume + Volume Under Media
262.5 ft3 + 968.8 1 ft3 + 1 93.0 1 ft3 + I 1218.8 ft3 = 1 2543.0 ft'
Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 2543.0 ft327 = 94.2 yd3
Add 30% for constructability: 94.2 yd' X 1.3 = 122.4 yd'
C. Calculate Sandy Berm Volume:
Total Berm Volume (approx) : ((Avg. Mound height - 0.5 ft topsoil) x Mound Width x Mound Length) + 2
(1 4.0 1 - 0.5 )ft X 1 34.5 7 ft X 87.1 ) + 2 =F 5176.0 jft3
Total Mound Volume - Clean Sand volume -Rock Volume = cubic feet
5176.0 ft3 - 2543.0 ft' - 312.5 ft3 =1 2320.5 Ift3
Divide ft3 by 27 ft3 /yd 3 to calculate cubic yards: 1 2320.5 ft3 = 27 = 85.9 yd'
Add 30% for constructability: 1 85.9 yd x 1.3 = 111.7 yd3
D. Calculate Topsoil Material Volume: Total Mound Width X Total Mound Length X .5 ft
34.5 ft X 87.1 ft X 0.5 ft = 1500.3 ft3
Divide ft3 by 27 ft3 /yd 3 to calculate cubic yards: 1500.3 ft3 27 = 55.6 yd3
Add 30% for constructability: 55.6 j yd x 1.3 = 72.2 yd3
Pressure Distribution
Sw�..e
+eM+
P.Oc-Nw�+ '.-�4 Design Worksheet
woc:�
M4 MINNESOTA POLLUTION
F: CONTROL AGENCY
Project ID: v 04.01.20201
1. Media Bed Width: 10 ft
2. Minimum Number of Laterals in system/zone = Rounded up number of [(Media Bed Width - 4) t 3) + I.
B 10 -4)+31+1 ■
3. Designer Selected Number of Laterals:
Cannot be less than line 2 /EXCeDt in at -grades)
4. Select Perforation Spacing:
5. Select Perforation Diameter Size:
b. Length of Laterals = Media Bed Length - 2 Feet.
laterals Does not apply to at -grades
laterals
3.00
it
7132 in
62.5 2ft b0.5 it Perforation can not be closer then i foot from edge.
7. Determine the Number of Perforation Spaces. Divide the Length of Laterals by the Perforation Spacing and
round down to the nearest whole number.
Number of Perforation Spaces - 60.5 ft 3.0 it = 20 Spaces
g. Number of Perforations per Lateral is equal to 1.0 plus the Number of Perforot fon Spaces. Check table below
to verify the number of perforations per lateral guarantees less than a 10% discharge variation. The value is
double with a center manifold.
Perforations Per Lateral = 20 Spaces + 1 = 21 Perfs. Per Lateral
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9. Total Number of Perforations equals the Number of Perforations per Lateral multiplied by the Number of
Perforated Laterals.
21 Perf. Per Lat. X Number of Perf. Lat. = b3 Total Number of Perf.
10. Spacing of laterals; Must be greater than 1 foot and no more than 3 feet: 3.0 it
11. Select Type of Manifold Connection (End or Center): End
12. Select Lateral Diameter (See Table). 2.00 in
Amina
bidw d Pwfaratiorla
Per L*W to tilmxAw 00% 0bdwp Vr6dm
kxh
Perforibm
7132 tach Porfmbons
Perforation Spxq (Feet)
1
P1pe 01n�
IN
111
Ilk dw)
1
3
Perforation Vad"11
(F«t)
PIR t1i>l"Iw
1 1% 1N
(yes)
I
3
2
10
13
11
30
6o
I
11 16 21
34
61
2n
I
12
16
29
54
in
10 14 20
32
64
3
12
16
23
12
f
1 14 !1
30
W
3/16 hwh Puhr tion
1/1 hub PErforuions
Perforation Spx* (Feet)
1
Pk* 1016owter
tit
1%
(IrKh el
2
3
f'rrforat6n S*q
F010
Pipe Dlerneter
1 1% 1Vi
(Inch)
1
3
2
12
11
U
46
V
2
21 33 44
74
141
211
12
17
24
40
10
171
20 30 41
N
115
3
1I
16
22
17
Iii
3
20 29 31
64
121
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9. Total Number of Perforations equals the Number of Perforations per Lateral multiplied by the Number of
Perforated Laterals.
21 Perf. Per Lat. X Number of Perf. Lat. = b3 Total Number of Perf.
10. Spacing of laterals; Must be greater than 1 foot and no more than 3 feet: 3.0 it
11. Select Type of Manifold Connection (End or Center): End
12. Select Lateral Diameter (See Table). 2.00 in
Pressure Distribution
mTH�n,e•ew• MANN F><O T♦ POLLUTION
Design Worksheet CONTROL AGENCY
13.
Calculate the Square Feet per Perforation.
KMI
Recommended value is 4,11 ft1 per perforation. Does not apply to At -Grades
a.
Bed Area =Bed Width (ft) X bed Length (ft►
Maeanq,�
10 ft X 63 ft = 625 ft,
IA' ai0 0.11 am 0.74
11I o.0 a!1 SAO a+
b.
Square Foot per Perforation = Bed Area : by the Total Number of Perfs
111' 0Zi aH 0.6 1.04
1 as an 1 0.4 1 10,1111 1.17
625 ftp = 63 pert ftZlperf
1a a.3: a.n o.IF I n
asr D o l.n 1 a
_—.11-1
s a1+ o.n 1.31
14.
Select Minimum Average Head:
1.0
ft
11m1 0W -,.V.0 lint *h to I'd kr
..walk„
15.
Select Perforation Discharge based on Table:
0.56
GPM per Peri
>WLIV Wtj i a ha xk,,mti
vw=ti+at+hi - dddmmwmj,%
16.
Flow Rate = Total Number of Perfs X Perforation Discharge,
.c►101ubepe "ko
Sim lawa,:aau.dWnw+uln*A
53 Perfs X 0.56 GPM per Perforation = 36
.rae''.Yrzn'a
GPM
17.
Volume of Liquid Per Foot of Distribution Piping (Table fl): 0.170
Gallons/ft
18.
Volume of Distribution Piping =
Table It
= [Number of Perforated Laterals X Length of Laterals X (Volume of
volume of Liquid in
Liquid Per Foot of Distribution Piping)
Pipe
3 X 61 ft x 0.170 gal/ft 30.9
�
Pipe
� te
Gallons +mer Perer Foot ot
(inches) (Gallons)
19.
Minimum Delivered Volume = Volume of Distribution Piping X 4
1 0.045
30.9
gats X 4 =
123.4
Gallons
1.25 0.078
1.5 0.110
2 0.170
3 0.380
4 0.b61
'Comments/Special Design Considerations:
s�..w Basic Pump Selection Design Worksheet M C N T OLA AGENCY POLLUTION
CONTROL AGENCY
1. PUMP CAPACITY L Project ID: v 04.01.2020
Pumping to Gravity or Pressure Distribution: Pressure
A. If pumping to gravity enter the gallon per minute of the pump: GPM (10 - 45 gpm)
8. If pumping to a pressurtzed distribution system: 36.0 GPM
C. Enter pump description:
2. HEAD REQUIREMENTS aad■dd�^ u
A. Elevation Difference ft WA
Baa
between pump and point of discharge:
B. Distribution Head boss: 5 ft I
C. Additional Head Loss: ft (due to saeciai egopment, etc.) ._..-----
Table I.l:riction Loss in Plastic Pamper 100ft
Distribution Head Loss
Gravity Distribution = Oft
Pressure Distribution based on Minimum Average Head
Value on Pressure Distribution Worksheet:
Minimum Avera a Head Distribution Head Loss
1ft 5ft
2ft Eft
5ft 1Oft
25 16.8 6.9
D. 1. Supply Pipe Diameter: 2.0 in 30 23.5 9.7
35 12.9
2. Supply Pipe Length: 75 It 40 16.5
E. Friction Loss in Plastic Pipe per 100ft from Table I: 45 20.5
50
Friction Loss = 3.32 ft per 100ft of pipe 55
60
F. Determine Equivalent Pipe Length from pump discharge to soil dispersal area 65
discharge point. Estimate by adding 25% to supply pipe length for fitting loss. 70
Supply Pipe Length X 1.25 - Equivalent Pipe Length 75
85
75 ft X 1.25 93.8 ft 95
G. Calculate Supply Friction Loss by multiplying Friction Loss Per 100ft by the Equivalent Pipe Length and divide by 100.
Supply Friction Loss -
3.32
It per 100ft X 93.8 It 100 = 3.1 ft
-2--
0.3
2_0.3
0.4
0.6
0.7
0.9
1.1
1.7
2.4
3.2
4.1
5.0
6.1
7.3
8.6
10.0
11.4
13.0
16.4
20.1
H. Total Head requirement is the sum of the Elevation Difference + Distribution Head Loss, + Additional Head Loss + Supply Friction Loss
8.0 ft 5.0 ft + E::::::::]ft + 3.1 ft = 16.1 ft
3. PUMP SELECTION
A pump must be selected to deliver at least 36.0 GPM with at least 16.1 feet of total head.
Row Rate
(GPM)
Pi a Dfameter
(in
1 1.2_5_
1.5
1.3
10
9.1 3.1
12
12.8 4.3
1.8
14
17.0 5.7
2.4
16
21.8 7.3
3.0
18
9.1
3.8
20
11.1
4.6
25 16.8 6.9
D. 1. Supply Pipe Diameter: 2.0 in 30 23.5 9.7
35 12.9
2. Supply Pipe Length: 75 It 40 16.5
E. Friction Loss in Plastic Pipe per 100ft from Table I: 45 20.5
50
Friction Loss = 3.32 ft per 100ft of pipe 55
60
F. Determine Equivalent Pipe Length from pump discharge to soil dispersal area 65
discharge point. Estimate by adding 25% to supply pipe length for fitting loss. 70
Supply Pipe Length X 1.25 - Equivalent Pipe Length 75
85
75 ft X 1.25 93.8 ft 95
G. Calculate Supply Friction Loss by multiplying Friction Loss Per 100ft by the Equivalent Pipe Length and divide by 100.
Supply Friction Loss -
3.32
It per 100ft X 93.8 It 100 = 3.1 ft
-2--
0.3
2_0.3
0.4
0.6
0.7
0.9
1.1
1.7
2.4
3.2
4.1
5.0
6.1
7.3
8.6
10.0
11.4
13.0
16.4
20.1
H. Total Head requirement is the sum of the Elevation Difference + Distribution Head Loss, + Additional Head Loss + Supply Friction Loss
8.0 ft 5.0 ft + E::::::::]ft + 3.1 ft = 16.1 ft
3. PUMP SELECTION
A pump must be selected to deliver at least 36.0 GPM with at least 16.1 feet of total head.
lrw.er
T4......, Pump Tank Design Worksheet (Demand Dose) m [OMT OL AGENCY TION
DETERMINE TANK CAPACITY AND DIMENSIONS Project ID:
v 04.01.2020
1. A. Design Flow +Design Sum. IA): 750 GPD C. Tank Use:
Dosing
13. Min. required pump tank capacity: 1000 Gal D. Recommended pump tank capacity: 1000 Gal
2. A. Tank Manufacturer: B. Tank Model:
C. Capacity from manufacturer: 1000 Gallons
Note: Design calculations are based orr this specific tank.
Substituting a different tank model will change the pump
D. Gallons per inch from manufacturer: 23.0 Gallons per inch
float or timer settings. Contact designer if changes are
necessary.
E. Liquid depth of tank from manufacturer: inches
DETERMINE DOSING VOLUME
3 Calculate Volume to Cover Pump (The inlet of the pump must be at least 4 -inches from the bottom of the pump tank @ 2 inches of water covering the pump is
recommended)
(Pump and block height - 2 inches) X Gallons Per inch
( 16 in + 2 inches) X 23.0 Gallons Per Inch =
414 Gallons
4 Minimum Delivered Volume = 4 X Volume of Distribution Piping:
-item 78 of the Pressure Distribution or item f l of Non -level 123 Gallons
(Minimum dose) 5.4 Inches/dose
5 Calculate Maximum Pumpout Volume 125% of Design Flow)
Design Flow: 750 GPD X 0.25 = 188 Gallons
(Maximum dose) 8.2 lnchesldose
6 Select a pumpout volume that meets both Minimum and Maximum: 150 Daltons
Volume +pf Liquid in
7 Calculate Doses Per Day = Design Flow -'Delivered Volume
750 gpd 15a gal = 5.00 Doses
Pipe
Pipe
Liquid
8 Calculate Drainback:
A. Diameter of Supply Pipe- inches
Diameter
Per Foot
(inches)
(Gallons)
B. Length of Supply Pipe = 75 feet
1
0.045
C. Volume of Liquid Per Lineal Foot of Pipe = 0.170 Gallons/ft
1.25
0.078
1.5
0.110
D. Dralnback = Length of Supply Pipe X Volume of Liquid Per Lineal Foot of Pipe
2
0.170
75 ft X 0.170 gal/lit = 12.8 Gallons
3
0.380
9. Total Dosing Volume = Delivered Volume plus Drainback
4
0.661
150 gal + 12.8 gal = 163 Gallons
10. Minimum Alarm Volume = Depth of alarm (2 or 3 inches) X gallons per inch of tank
in X gat/in Gallons
21 23.0
DEMAND DOSE FLOAT SETTINGS
11. Calculate Float Separation Distance using Dosing Volume.
Total Dosing Volume /Gallons Per Inch
163 gal - 23.0 gal/in = i 7.1 Inches
12. Measuring from bottom of tank:
'L
A. Distance to se[ Pump Off Float = Pump - block height + 2 Inches
Inches for Dose: 7.1 in
16 in + 2 in 18 Inches
Alarm Depth 27.1 in
B. Distance to set Pump On Float=Distance to Set Pump -Off Float - Float Separation Distance
Pump On 25.1 in 46.0 Gal
18 in + 7.1 in = 25 Inches
Pump Off 18.0 in 153 Gal f
C. Distance to set Alarm Float = Distance to set Pump -On Float + Alarm Depth (2-3 inches)
414 Gal
25 In + 2.0 in = 27 Inches
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Log Of Soil Borin s
Location: 2700 White Oak Circle Orono, Mn.
Date: 4/10/2022
Depth in Inches
Bl
Texture
Color
Shape
Grade
Consistence
0-18
18-22
Loam
Loam
10YR2/2
10YR2/2,10YR6/2
Blocky
Blocky
Weak
Weak
Friable
Friable
SYRS/8
B2
0-6
6-15•
Loam
Loam
10YR2/2
10YR2/2,10YR6/2
Blocky
Blocky
Weak
Weak
Friable
Friable
5YR5/8
53
0-10
10-15.
Loam
Sandy Loam
10YR4/3
10YR4/3,5YR5/8
Blocky
Blocky
Weak
Weak
Friable
Friable
10YR6/2
B4
0-10
10-15.
Loam
Loam
10YR4/3
10YR4/3,10YR8/1
Blocky
Blocky
Weak
Weak
Friable
Friable
5YR5/8
BS
0-15
Loam
10YR4/3
Blocky
Weak
Friable
15-18
Loam
10YR4/3,30YR8/1
Blocky
Weak
Friable
5YR5/8
B6
0-15
Loam
10YR2/2
Blocky
Weak
Friable
15-18
Loam
10YR2/2,10YR6/2
Blocky
Weak
Friable
5YR5/8
B7
0-24
Loam
10YR2/2 I
Blocky
Weak
Friable
End of Boring
68
0-12
Loam
10YR2/2
Blocky
Weak
Friable
12-16.
Loam
10YR2/2,10YR8/1,
Blocky
Weak
Friable
5YR5/8
Log Of Soil Bori n s
Location: 2700 White Oak Circle Orono, Mn.
Date: 10/22/2022
Depth in Inches
Texture Color
Shape Grade Consistence
B9
0-13
Loam 10YR4/3
Blocky Weak Friable
13-24
Loam 10YR4/3,10YR8/1
Blocky Weak Friable
5YR5/8
B10
0-14 Loam 10YR4/3 Blocky Weak Friable
14-24 Loam 10YR4/3,10YR8/1 Blocky Weak Friable
5YR5/8
Percolation Test
Location: 24ou W1%Jr- Oa&. C vj ke
Test Hole Number: Pi
Depth to the bottom of the hole: -I?- inches
Diameter of hole: 6"
Depth, inches Soil Texture
(Percolation test by Dave Brown C9370 L3649
Date of test: 1il/2Zl zZ-
Time interval
Time minutes
Measurement Drop in water Percolation rate
Inches level inches min./in.
Remarks
C) 10 'Uv
8
C/ Lr 7 G i -., c
7 1 ! sr!
c" a
8
Cf)'/ b.31
G
7 1
8
00 �1� "vS
7
8
Percolation Rate: 1 minutes per inch
Percolation Test
Location: LAO h h,r-r C -4x c,l2cc-
Test Hole Number: P2
Depth to the bottom of the hole. [7 inches
Diameter of hole: 6"
Depth, inches Soil Texture
IZ L
Percolation test 6y Dave Brown C9370 L3649
Date of test:
Time interval
Time minutes
Measurement Drop in water
Inches level inches
Percolation rate
min./in. Remarks
3C -cc
8
8
; O L 7,
7 1
b
Ilia .'3z
8
93 G& 014
7 1
17. t.
//'N y$
8
7 1
�K
Percolation Rate: / � minutes per inch
i
v
r.
my
a L132A
y� .fie
Map Unit Description Hamel -Glencoe complex, 0 to 2 percent slopes—Hennepin County.
Minnesota
Hennepin County, Minnesota
L132A—Hamel-Glencoe complex, 0 to 2 percent slopes
Map Unit Setting
National map unit symbol: 2tsk3
Elevation: 690 to 1,840 feet
Mean annual precipitation: 24 to 37 inches
Mean annual air temperature: 43 to 52 degrees F
Frost -free period, 140 to 180 days
Farmland classification: Prime farmland if drained
2700 White Oak Circle Orono, Mn.
Map Unit Composition
Hamel and similar soils: 55 percent
Glencoe and similar soils: 35 percent
Minor components: 10 percent
Estimates are based on observations, descriptions, and transects of
the mapunit.
Description of Hamel
Setting
Landform: Ground moraines
Landform position (three-dimensional): Dip
Down-slope shape: Concave, linear
Across -slope shape: Linear, concave
Parent material: Colluvium over till
Typical profile
Ap - 0 to 10 inches: loam
A - 10 to 24 inches: loam
Btg - 24 to 46 inches: clay loam
Cg - 46 to 79 inches: clay loam
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Poorly drained
Capacity of the most limiting layer to transmit water
(Ksat): Moderately high to high (0.20 to 2.00 infhr)
Depth to water table: About 0 to 8 inches
Frequency of flooding: None
Frequency ofponding: None
Calcium carbonate, maximum content: 20 percent
Maximum salinity: Nonsaline to very slightly saline (OA to 2.0
mmhoslcm)
Available water supply, 0 to 60 inches: High (about 10.9 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 2w
Hydrologic Soil Group. CID
l Natural Resources Web Sod survey
Conservallon Smice National Cooperative Sod Survey
UNIVERSITY'
OF MINNESOTA
Septic System Management Plan
for Above Grade Systems
The goal of a septic system is to protect human health and the environment by properly treating wastewater
before returning it to the environment. Your septic system is designed to kill harmful organisms and remove
pollutants before the water is recycled back into our lakes, streams and groundwater.
This management plan will identify the operation and maintenance activities necessary to ensure long-
term performance of your septic system. Some of these activities must be performed by you, the
homeowner. Other tasks must be performed by a licensed septic maintainer or service provider. However,
it is YOUR responsibility to make sure all tasks get accomplished in a timely manner.
The University of Minnesota's Septic System Ox-»er's Guide contains additional tips and recommendations
designed to extend the effective life of your system and save you money over time.
Proper septic system design, installation, operation and maintenance means safe and clean water!
Property Owner �s+��. CtlQ 40kif 1 Email �,� 1�aee +�J.co"
Property Address Zip WkIk Nt _ Qvck �n s`.SJt� Property ID eV/ &V2-
System Designer � �� Contact Info , S-1 `+-h IL _ 3 ?_-1 &
System Installer
Service Provider/Maintainer
Contact Info
Contact Info
Permitting Authority CllY of Orono Contact lnfo gsL_tY4_ �L Gp
Permit # Date Inspected
Keep this Management Plan with your Septic System Owner's Guide. The Septic System Owner's Guide
includes a folder to hold maintenance records including pumping, inspection and evaluation reports. Ask
your septic professional to also:
• Attach permit information, designer drawings and as -built of your system, if they are available.
• Keep copies of all pumping records and other maintenance and repair invoices with this document.
• Review this document with your maintenance professional at each visit; discuss any changes in product
use, activities, or water -use appliances.
For a copy of the Septic System Owner's Guide, visit www.bookstores.umn.edu and search for the word
"septic" or call 800-322-8642.
For more information see http://septic.umn.edu
Version: August 2015
UNIVERSITY Septic S}:stem Management Plan
for Above Grade Systems
OF MINNESOTA "La
Your Septic System
Ounm
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Septic System Specifics
System Type: O I OTT OIII OCV* O V* ❑ System is subject to operating permit*
(Based on MN Rules Chapter 7080.2200 — 2400) ❑System uses W disinfection unit*
*Additional Management Plan required Type of advanced treatment unit
Dwelling Type Well Construction
Number of bedrooms: -5-
System capacity/ design flow (gpd): '7Sa
Anticipated average daily flow (gpd): 400
Comments
Business? : 0 O N What type?
Well depth (ft): t% 1%,
❑ Cased well Casing depth: ?Sb
❑ Other (specify):
Distance from septic (ft): x,!rv`
Is the well on the design drawing? • Y O N
Septic Tank
❑ First tank Tank volume: /&700 gallons ❑ Pump Tank /Ooa gallons
Does tank have two compartments? OY ON ❑ Effluent Pump make/model:
❑ Second tank Tank volume: /000 gallons Pump capacity 34 GPM
❑ Tank is constructed of Com-reie TDH 14,1 Feet of head
❑ Effluent screen:0 Y ON Alarm OY O N ❑ Alarm location S,1e—
Soil Treatment Area (STA)
Mound/At-Grade area (width x length): !.S ft x fyel ft
� Inspection ports ❑ Cleanouts
Rock bed size (width x length): 10 fl x OZ.S ft
Surface water diversions
Location of additional STA: dm—"-N
Type distribution e�
Additional STA not available
El
of media:
-2-
UNIVERSITY Septic System Management Plan
OF MINNESOTA ,for Above Grade Systems91 ... S-1
Homeowner Management Tasks
These operation and maintenance activities are your responsibility. Chart on page 6 can help
track your activities.
Your toilet is not a garbage can. Do not flush anything besides human waste and toilet paper. No wet
wipes, cigarette butts, disposal diapers, used medicine, feminine products or other trash!
The system and septic tanks needs to be
checked every -7` months
Your service provider or pumper/maintainer should evaluate if your tank needs to be pumped more or less
often.
Seasonally or several times per year
• Leaks. Check (listen, look) for leaks in toilets and dripping faucets. Repair leaks promptly.
• Soil treatment area. Regularly check for wet or spongy soil around your soil treatment area. If
surfaced sewage or strong odors are not corrected by pumping the tank or fixing broken caps and
leaks, call your service professional. Untreated sewage may make humans and animals sick. Keep
bikes, snowmobiles and other traffic off and control borrowing animals.
• Alarms. Alarms signal when there is a problem; contact your service professional any time the
alarm signals.
• Lint filter. If you have a lint filter, check for lint buildup and clean when necessary. If you do not
have one, consider adding one after washing machine.
• Effluent screen. If you do not have one, consider having one installed the next time the tank is
cleaned along with an alarm.
Annually
• Water usage rate. A water meter or another device can be used to monitor your average daily water
use. Compare your water usage rate to the design flow of your system (listed on the next page).
Contact your septic professional if your average daily flow over the course of a month exceeds 70%
of the design flow for your system.
• Caps. Make sure that all caps and lids are intact and in place. Inspect for damaged caps at least
every fall. Fix or replace damaged caps before winter to help prevent freezing issues.
• Water conditioning devices. See Page 5 for a list of devices. When possible, program the recharge
frequency based on water demand (gallons) rather than time (days). Recharging too frequently
may negatively impact your septic system. Consider updating to demand operation if your system
currently uses time,
• Review your water usage rate. Review the Water Use Appliance chart on Page 5. Discuss any major
changes with your service provider or pumper/maintainer.
During each visit by a service provider or pumper/maintainer
• Make sure that your service professional services the tank through the manhole.
(NOT though a 4" or 6" diameter inspection port.)
• Ask how full your tank was with sludge and scum to determine if your service interval is
appropriate.
• Ask your pumper/maintainer to accomplish the tasks listed on the Professional Tasks on Page 4.
-3-
Septic System Management Plan s
UNIVERSITY AONS�
forAbove Grade Sys[emsOF MINNESOTA
Professional Management Tasks
These are the operation and maintenance activities that a pumper/maintainer performs to help ensure long-
term performance of your system. At each visit a written report/record must be provided to homeowner.
PlumbinWSource of Wastewater
Review the Water Use Appliance Chart on Page 5 with homeowner.
Discuss any changes in water use and the impact those changes may have on the septic system.
• Review water usage rates (if available) with homeowner.
Septic Tank/Pump Tanks
• Manhole lid. A riser is recommended if the lid is not accessible from the ground surface. Insulate
the riser cover for frost protection.
• Liquid level. Check to make sure the tank is not leaking. The liquid level should be level with the
bottom of the outlet pipe. (If the water level is below the bottom of the outlet pipe, the tank may
not be watertight. If the water level is higher than the bottom of the outlet pipe of the tank. the
effluent screen may need cleaning, or there may be ponding in the soil treatment area.)
• Inspection pipes. Replace damaged or missing pipes and caps.
• Baffles. Check to make sure they are in place and attached, and that inlet/outlet baffles are clear of
buildup or obstructions.
• Effluent screen. Check to make sure it is in place; clean per manufacturer recommendation.
Recommend retrofitted installation if one is not present.
• Alarm. Verify that the alarm works.
• Scum and sludge. Measure scum and sludge in each compartment of each septic and pump tank.
pump if needed.
Pump
• Pump and controls. Check to make sure the pump and controls are operating correctly.
• Pump vault. Check to make sure it is in place; clean per manufacturer recommendations.
• Alarm. Verify that the alarm works.
• Drainback. Check to make sure it is draining properly.
Event counter or elapsed time meter. Check to see if there is an event counter or elapsed time
meter for the pump. If there is one or both, calculate the water usage rate and compare to the
anticipated use listed on Design and Page 2. Dose Volume: gallons: Pump run time:
Minutes
Soil Treatment Area
• Inspection pipes. Check to make sure they are properly capped. Replace caps and pipes that are
damaged.
• Surfacing of effluent. Check for surfacing effluent or other signs of problems.
• Lateral flushing. Check lateral distribution; if cleanouts exist, flush and clean at recommended
frequency.
• Vegetation - Check to see that a good growth of vegetation is covering the system.
All other components — evaluate as listed here:
-4-
UNIVERSITY Septic• Syslem Management Plan
for Above Grade Systems
OF MINNESOTA
Water -Use Appliances and
Equipment in the Home
Appliance
Impacts on System
Management Tips
- Uses additional water.
- Use of a garbage disposal is not recommended.
- Adds solids to the tank.
- Minimize garbage disposal use. Compost instead.
Garbage disposal
- Finely -ground solids may not settle.
- To prevent solids from exiting the tank, have your
Unsettled solids can exit the tank
tank pumped more frequently.
and enter the soil treatment area.
- Add an effluent screen to your tank.
- Washing several loads on one day
- Choose a front -loader or water -saving top -loader,
uses a lot of water and may overload
these units use less water than older models.
your system.
- Limit the addition of extra solids to your tank by
- Overloading your system may
using liquid or easily biodegradable detergents.
Washing machine
prevent solids from settling out in
Limit use of bleach -based detergents and fabric
the tank. Unsettled solids can exit
softeners.
the tank and enter the soil treatment
. Install a lint filter after die washer and an effluent
area.
screen to your tank
- Wash only full loads and think even — spread your
laundry loads throughout the week.
- Powdered and/or high -phosphorus
- Use gel detergents. Powdered detergents may add
detergents can negatively impact the
solids to the tank.
Dishwasher
performance of your tank and soil
- Use detergents that are low or no -phosphorus.
treatment area.
- Wash only full loads.
- New models promote "no scraping".
- Scrape your dishes anyways to keep undigested
They have a garbage disposal inside.
solids out of your septic system.
- Finely -ground solids may not settle.
- Expand septic tank capacity by a factor of 1.5.
Grinder pump (in
Unsettled solids can exit the tank
- Include pump monitoring in your maintenance
home)
and enter the soil treatment area.
schedule to ensure that it is working properly.
- Add an effluent screen.
- Large volume of water may
- Avoid using other water -use appliances at the same
Large bathtub
overload your system.
time. For example, don't wash clothes and take a
(whirlpool)
- Heavy use of bath oils and soaps can
bath at the same time.
impact biological activity in your
- Use oils, soaps, and cleaners in the bath or shower
tank and soil treatment area.
sparingly.
Clean Water Uses
Impacts on System
Management Tips
High -efficiency
- Drip may result in frozen pipes
- Re-route water directly out of the house. Do not
furnace
during cold weather.
route furnace discharge to your septic system.
Water softener
- Salt in recharge water may affect
- These sources produce water that is not sewage and
Iron filter
system performance.
should not go into your septic system.
Reverse osmosis
- Recharge water may hydraulically
- Reroute water from these sources to another outlet,
overload the system.
such as a dry well, draintile or old drainfield.
- When replacing, consider using a demand -based
- Water from these sources will
Surface drainage
overload the system and is
recharge vs. a time -based recharge.
Footing drains
prohibited from entering septic
- Check valves to ensure proper operation; have unit
system.
serviced per manufacturer directions
Ism
UNIVERSITY Septic System Management Plan
fir Above Grade Systems
OF MINNESOTA
Homeowner Maintenance Log
Track maintenance activities here for easy reference. See list of management tasks on pages 3 and 4.
Activity
Date accomplished
Check frequently:
Leaks. check for plumbing leaks*
Soil treatment area check for surfacing**
Lint filter: check, clean if needed*
Effluent screen (if owner -maintained)***
Alarm**
Check annually:
Water usage rate (maximum gpd
Caps: inspect, replace if needed
Water use appliances — review use
Other:
*Monthly
"Quarterly
Quarterly
* * *Bi -Annually
Notes:
"As the owner of this SSTS, I understand it is my responsibility to properly operate and maintain
the sewage treatment system on this property, utilizing the Management Plan. If requirements in
this Management Plan are not met, I will promptly notify the permitting authority and take
necessary corrective actions. if I have a new system, I agree to adequately protect the reserve
area for future use as a soil treatment system."
Property Owner Signature: Date
Management Plan Prepared By: ,,, Certification #
Permitting Authority: p
®2015 Regents of the University of Minnesota. All rights resmcd. Tile University of Minnesota is an equal opportunity educator and employer.
This material is available in alternative formats upon request. Contact the Water Resources Center, 612-624-9282. The Onsite Sewage
Treatment Program is delivered by the University of Minncsota Extension Service and the University of Minnesota Water Resources Center.
-6-