Bohn Well Drilling Co DocumentsBohn Well Drilling Co
952-445-4809 Fax: 952<45-1439/ www.bohnwell.com
18190 Dairy Lane, ste 101, Jordan, MN 55352
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Your One Stop Contractor
g.. Gornpq^
Dis It -1b
Drill It
Drain It
Percolation Tests, Soil Borings &
Septic System Design
c6844 41812020Joey Menden
Completion DateCreated By
Prepared F!r:Francisco and Heatier Silva
Attention Francisco and Heather Silva
Mail'ng Addrgs:565 Lakota Lane
Chaska, MN 55318
Phone #"s Work His Mobile:952-4A4-9366
Fax
Site Location Information
Homeowners;Francisco and Heather Silva
Site Address 565 Lakota Lane
Chaska, MN 55318
County Township
8n
Chanhassen
Tom$rip # 116I{ RangE *Section # 36
Design must be paid for, by whom it was prepared for, prior to releasing it to any contrdctor to bid or any city,
Town*rip or County office for permitting. We reserve the right to hold design until payment has been received.
CIIY OF CHANHASSEN
RECEIVED
MAY 01 2020
CHAJ'IHASSEN PLAI'INING DEPI
\
Personal License # lBusiness License #
1043
Her Mobile 612-418-5044
Carver
Bohn WeIl Drilling Co.
18190 Dairy Lane, Ste 101, Jordan, MN 55352
952-445-4809 ax:952-445-7439 .bohnwell.com
Design Info s Dig It
Drill It
Drain It
Your One Stop Contractor
Items Included in Design Packet
1. SepticSystem Design
A. Design cover Sheet
B. SepUc Design Drawing
C. Design Summary worksheets
D. Mound Design Worksheet
E. Pressure Distibution Worksheet
F. Pump Selection Worksheet
G. Pump Tank Sizing and Float Setting Worksheet
H. Altemate Septic Site DrawingI. Soil boring worksheets
2. Septic System Management Plan
3. Special info: The washed sand in the mound must etend to the toe of all the
dikes. This includes the toe of the upslope dike, endslope dike and downslope dike.
Not just to the absorption area.
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occddirg to $. r!co.d.d pht thaofCE€' County, Lhnc.oto
Lb.* 545 td(do [rB Clro*r, l&.eto
Certificate of Survey for:
Francisco and Heather Silva
Sr..t 2 of 2
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934.5
934.7
937.7
939.2
930.40
928.60
928.30
928.00
Septic Design Key for Survey
Details
floor elevation
Existing grade at rock bed
op of rock bed
Top of mound
4" pipe out of house
lnvert f1 Septic Tank
lnvert fl2 Septic Tank
lnvert f3 PumpTank
L750
1O0O gallons
10OO gallons
Gallons
925.00 lnvert of pump
Total feet of head19.40
Elevations
Design Summary Page
E MI N }IESOT POLLUIIONIII coNTroracENcY
1. PROJECT INFORMATION v U.07.2019
Francisco & Heather Silva Project lD:
Date:
Phone:
251300010
565 Lakota Ln Chanhassen, MN 55318 ut08t20
2. DESIGN FLOW & WASTE STRENGTH Attach dato I etti,tnte bosis for other Establistnpots
Design Ftow:
BOD:
Treatment Levet:
600 Residential
c
mg/L
Sele.t Treotrnent Leyel C tor rctideotiol teptic tdnk eftluefit
mg/L T55:
GPD Anticipated Waste Type:
mg/L Oi[ &. Grease:
3. HOLDING TANK SIZING
Minimum Capacity: Residentiat =400 gal/Hroom, Other Estabtishment = Design Row x 5.0, Minimum size 1000 gallons
Cde llinimum Holding Tank Capacity:
Recommended Holding Tank Capacity:
Type of High Level Alarm:
Comments:
Galtons in
Galtons in
Tank or Compartments
Tanks or Compartments
(set @ 75% tank capacity)
4. SEPTIC TANK SIZING
A. Residentialdwellings:
Number of Bedrooms (Residentiat):
Code llinimum Septic Tank Capacity:
Recommet ed Septic Tank Capacity:
2250
2250
No
4
7
GPD x
Tanks or Compartments
anks or Compartments
Efftuent Screen & Atarm (Y/N):
Days Hyd. Retention Time
Efftuent Screen & Atarm (Y/N):
Gallons in
Gattons in
lrtodet/Type
Gallons In
Gatlons ln
lrtodet/Type:
B. OtherEstabtishments:
waste received by:
Code llinimum Septic Tank Capacity:
Recommended Septic Tank Capacity:
Tank or CompartmenG
Tank or Compartments
5. PUMP TANX SIZING
1000 Gal
Gat
ft
gal
Gat
Gat
ft
Gal
1000
29.0 19.4
2.m 100.0
Pump 1 GPM Totat Head Pump 2 GPM Total Head
Suppty Pipe Dia.Suppty Pipe Dia.Dose Vot:
Pump Tank 1 Capacity (l inimum):
Pump Tank 1 Capacity (Recommended):
Pump Tank 2 Capacity (Minimum):
Pump Tank 2 Capacity (Recommended):
in Dose Vo[:
Property Owner/Ctient:
Site Address:
Email Address:
JN l^INXESOTA POLLUTIOXItl coNtPof acENcY
6. SYSTEM AND DISTRIBUTION ryPE Proiect lD: 2513m010
Soi[ Treatment Type:
Elevation Eenchmark:
MPCA Slatem Type:
Type lll/lV Detaits:
Mound Distribution Type:
Benchmark Location:
Distribution l edia:
Pressure Distribution-Level
934.5 Garage Ftoor
Type lll Rock
Fitted soit under mound area.
ft
7, SITE EVALUATION SUAA'{ARY:
Describe Limiting Condition:Redoximorphic Features/Saturated Soils
Layers with >35% Rock Fragments? (yes/no)No lf yes, describe below: % rock and layer thickness, amount of
soit credit and any additional information for addressing the rock fragments in this design.
N ote:
Depth Depth Elevation
Limiting Condition:
Minimum Req d Separation:
Code lrlax System Depth:
12 inches 1.0 ft ft
36 inches 3.0 ft Etevation Critical for system cornpliance
l'lound inches -7.0 ft 2.O ft
_------TttF-E-S3-ltl?fiEjqqll-d-eP!l-tg-th€ botto.n of tlle distributin medla. tlegative Deptn (ft) means it must be a mqrM.
Soil Texture:
Soil Hyd. Loading Rate:
Contour Loading Rate:
l easured Land Stope:
Comments:
Loam
0.60 GPD/ft2 Percotation Rate:I
12 Note:
Note:
8. SOIL TREATAAENT AREA DESIGN SUM"TARY
Trench:
Dispersat Area
Total Lineat Feet
Contour Loading Rate
Sidewatl Depth
No. of Trench6
Min. Length
Trench Width
Code ldax. Trench Depth
Designed Trench Depth
ft2
ft
ft
ln ft
in
inft
Bed:
Dispersat Area
Bed Width
ft2 Sidewalt Depth
Bed Length
ln Maximum Bed Depth
Designed Bed Depth
tn
ft ft tn
Mound:
Dispesal Area
Absorption Width
Upstope Berm Width
Totat System Length
500.0
20.o
10.8
78.5
ft2 Bed Length
ft Ctean Sand Lift
ft Downslope Berm
ft s)rstem Width
50.0
7.O
15.2
36.0
Bed Width
Berm Width (0-1%)
Endstope Berm Mdth
Contour Loading
10.0
14.3
ft
ft
ft
ft
ft
ft
ft
gat/ft12.0
Design Summary Page
Or:s,rr m MINXESO'A PO L LUTI ON
CO NTRO L AGENCY
Pro lD: #REF!
ft
gal/ft
ft
Bed Length
Upstope Berm
Sptem Length
ft
ft
ft
Finished Height
Downslope Berm
System Width
ft
ft
ft
At-Grade:
Bed Width
Endstope Berm
Contour Loading
Level & Equal Pressure Distribution
No. of Laterals
Lateral Diameter
Perforation Spacing
Min Dose Volume
ft Perforation Diamet ln
1.50 ln 63 gat Max Dose Votume 150 gat
3 3 7132.
Non-Level and ual Pressure Distribution
Lateral 1
Lateral 2
Laterat 3
Lateral 4
Lateral 5
Lateral 6
l inimum Dose
Votume
gat
aximum Dose
Votume
gat
Elevation
(ft)
Pipe Size
(in)
Pipe
Votume
(gat/ft)
Pipe
Length (ft)
Perf Size
(in )
Spacing
(ft)
Spacing
(in)
IIIIIIIIIIIIIIIIIIIIIIIrIIIIIII IIII
9. Additional lnfo for At-Risk, HSWor Type lV Design
A. Starting BOD Concentration = Design Ftow X Starting BOD (mg/L) X 8.35 + 1,000,0m
B. Target BOD Concentration = Design Flow X Target BOD (mg/L) X 8.35 + 1,000,000
tbs./day/ft2ft2gpd x 8.35 + 1,(n0,000 +
lbs. BOD/day
C. Organic Loading to Soil Treatment Area:
tbs. BOD/day
mg/L X
' lust Meet or Exceed Target
'Required for Levets A & B
gpd x
PreTreatment Technology:
Disinfection Technotogy:
cpd x
mg/L X 8.35 + 1,000,00 =
mg/lX 8.35 * 1,000,00 =
Lbs. 8OD To Be Removed:
10. Comments6pecial Design Considerations:
Lift pump witt be instatted in basement to keep tank shaltower in yard.
Joey l'{end€n c6844 9 -8-Ju)\Lru-
I hereby certify that I have compteted this work in accordance with att appticabte ordinances, rutes and [aws.
(License #)(Date)(Designer)(Signature)
-
Design Summary Page
O.rs!r.
Design Summary Page -
TTINXESOTAPOLI.UIIONIlf coNTRoLAGExcY
Pro lD: #REF!
Level & Equal Pressure Distribution
No. of Laterats
Laterat Diameter
Perforation Spacing
Min Dose Volume
ft Perforation Di ln
1.50 ln 63 gat Max Dose Volume 150 gat
3 3 7 t32
Non-Level and Pressure Distribution
tateral 1
laterat 2
Laterat 3
Lateral 4
Lateral 5
Lateral 6
Minimum Dose
Votume
gat
llaximtsn Dose
Volume
gat
Spacing
(in)
Elevation
(ft)
Pipe Size
(in)
Pipe
Volurne
(gaUft)
Pipe
Length (ft)
Perf Size
(in)
Spacing
(ft)
IIIII IIIIIIIIIIIIIIIIIIIIIIIITIITI
I
9. Additional lnfo for At-Risk, HSW or Type lV Deslgn
A. Starting BOD Concentration = Design Flow X Starting BOD (mg/L) X 8.35 + 1,000,000
B. Target BOD Concentration = Design Flow X Target BOD (mg/L) x 8.35 + 1,000,000
tbs. /day/ft2ft2gpd x 8.35 i 1,000,000 +
tbs. BOD/day
tbs. BOD/day
mq/L X
'Must Meet or Exceed Target
'Required for Levels A & B
PreTreatment Technology:
Disinf ection Technology:
cpd x mg/L X 8.35 + 1,000,0O =
cpd x mg/L X 8.35 + '1,000,0O =
uc. BOD To Be Removed:
10. Comments/Special Design Consideratlons:
Joey Menden c6444
I hereby certify that I have completed this work in accordance with atl appticable ordinances, rules and taws.
(Signature)(License #)(Date)(Designer)
Bed Bed Finished
Contour Loading Upstope Downslope Berm
Endslope Berm System System
C. Organic Loading to Soi[ Treatment Area:
Lift pump witt be instatted in basement to keep tank shallower in yard.
-l
rrt x { Esota PollurtoNIll coNrroL GENcY
1. SYSTET,T STZ|NG:Proiect lD: 251300010 v 04.02.2019
A. Design Row:
B. Soit Loading Rate:
C, Depth to Limiting Condition
D. Percent Land Slope:
E. Design l edia Loading Rate:
F. ,rlound Absorption Ratio:
600 GPD TABLE lXa
G PD ft2 LOAOII{G RATES FOR OETERTTNITIG EOTTOA.I ABSORPTION AREA
AND ABSORPTION RATIOS USING PERCOLATIOX 1EST5
'1.0 ft
%{xrr)
1.2 GPD/ft2
;0rro5
16lo 30
i6 ro@
'S)rstems with these yalues are not Type I r!6tems.
Contour Loading Rate (tinear loading rate) is a
recommended value.
T...!m.d t El A, a-2, B,
(!,drn'l
ilt
{rnarfl
1
1
1 1.6
1.6I
2 0.780.6
0_6
oa5
6r lo120
>120
2.00
TTOUNO CONTOUR LOADIXG RATEs:
OR
TexturE - dsrired
mo(,|d abJorptixr
r.0, 1.3. 2.0. 2.4,2.6
5.OOR
>5.0'
@@@@
HEEEE
2. DISPERSAL IIEDIA SIZING
A. Catcutate Dispersal. Bed Area: Design Row r Design itedia Loading Rate = ftr
6N GPD +1.2 GPD/ft2 =500 ft2
lf a targer disp€rsat media area is desired, enter size:ft2
B. Enter Dispersat Bed Width:10.0 ft Can Nt exceed 10 feet
C. Catcutate Contour Loading Rate: Bed Width X Design lvtedia Loading Rate
10 ft2 x GPD/ft2 =12.0 gat/ft Can not exceed Toble 1
D. Calcutate Minimum Dispersal Bed Length: Disp€rsat Bed Area i Bed Width = Bed Length
500 ft2 +10.0 ft=50.0 ft
3. ABSORPTION AREA SIZING
A, Calcutate Absorption Width: Bed Width X lrtound Absorption Ratio = Absorption width
10.0 ftx 7.O 20.0 fr
B. For slopes >1%, the Absorption width is measured downhitl from the upstope edge of the Bed.
Catculate Downslope Absorption Width: Absorptlon Width - Bed Width
20.0 ft 10.0 ft=10.0 ft
4. DISTRIBUTION MEDIA: ROCK Proiect ID:#REF!
A. Rock Depth Betow Distribution Pipe
9 0.75
Mound Design Worksheet
>1% Stope
2.0
1
1 '1.6
2t I o.zs
26 I o"
slos
2
1.5 -;_l
H
f-T6o I
*_l*--l
o.re ]
5. DISTRIBUTION l,lEDlA: REGIsTERED TREATI{ENT PRODUCTS: CHAMBERS AND EZFLOW
A. Enter Dispersat Ll€dia:
B
c
Enter the Component: Length:ft widrh:ft Depth fr
Number of Components per Row = Bed Length divided by Component Length (Round up)
ft;ft=comPonents / row
components X ft=
E. Number of Rows = Bed Mdth divided by Component Width (Round up)
ft+ft=rows Adjust width so this is o whole number.
F. Totat Number of Components = Number of Components per Row X Number of Rows
x components
6. l,lOUND SlZlNG
A. Catcutate Minimum Clean Sand Lift: 3 feet minus Depth to Limiting Condition = Clean Sand Lift
3.0 ft 1.0 2.0 ft Design Sand Lift (optionat):ft
B. Upstope Height: Ctean Sand Lift + Depth of Media + Depth of Cover cover (l ft.)
2.O ft+1.1 ft+1.5 ft=4.6 ft
Land Slope %0 1 2 3 4 5 6 7 8 9 10 11 L2
Upslope Berm
Ratio
3:1 3.OO 2.83 2.75 2.68 2.67 2.54 2.44 2.42 2.36 2.31 2.26 z.2r
4:7 4.OO 3.85 3.70 3.57 3.45 3.33 3.23 3.12 3.O3 2.94 2.46 2.74 2-70
C. Setect Upslope Berm lrtuttiptier (based on tand stope):2.38
D. Catcutate Upstope Berm Mdth: Multiptier X Upstope Mound Height = Upstope B€rm Width
2.38 ftx 4.6 ft=ft
E. Catcutate Drop in Etevation Under Bed: Bed Width X tand 5tope r 100 = Drop (ft)
10.0 ftx 7.0 X t 100=
F. Calculate Downslope ]rlound Height: Upstope Height + Drop in Etevation = Downstope Height
ft+ft=ft4.6 0.20 4.8
Land Slope %0 7 2 3 4 5 6 7 9 10 11 12
Downslope
Berm Ratio
3.OO 3.09 3.19 3.30 3.47 3.53 3.66 3.80 3.95 4.11 4.29 4.48 4-69
4:7 4.O0 4.77 4.35 4.54 4.76 5.OO 5.56 5.88 6.25 6.67 7.69
G. Select Downstope Berm ,r{uttiplier (based on tand stop€):
3.19 x 4.8 ft=15.2 fr
l. Catcutate Minimum Berm to Cover Absorption Area: Downslope 45r561p1ion Width + 4 feet
10.0 ft+ft=
ft
14.0 ft
J. Design Downslope Berm = greater of 4H and 4l:
K. Setect Endstope Berm Multiptier:
15.2
3.00 (usuolly 3.0 or 4.0)
L- Catcutate Endslope Berm X Downstope [{ound Height = Endstope Berm Wdth
1.00 ft ft=14.3 ft
,{. Catcutate lilound Width: Upstope Berm Width + B€d Width + Domstope Berm Mdth
10,8 ft+10.0 ft+15.?ft=36.0 ft
ft
N. Catculate ,\ ound Length: EnGtope Berm Mdth + Bed l€ngth + Endstope Eerm Mdth
14.3 s0.0 14.3 78.5
0.20
4
ft+ft+ft=
Check registered prduct
intormoti on f ot qeci f ic
owlicotion details and
design
D. Actuat Bed Length = Number of Components/row X Component Length:
ft=
H. Calculate Downstope Berm Mdth: ,r{uttiplier X Downslope Height = Downstope Berm Mdth
2.9L
10.8
3:1
5.26 7 _14
3.19
7. MOUND DIMENSIONS Project lD:#REF!
=s
c.
!
='g
=o
=(E
P
4" inspection pipe
18' cover on top 15.2
berm 4.D berm 4.J
10.8
12' cover on sides
(6" topsoit)
Depth to Linriting t1 .C)
1.0Limiting C ondition
ion Mdth (3.A
Note:
For 0 to 1[ stopes, Absorption |$dth is rom the ,edequatty in both directions.
For slopes >1%, Absorption Wdth is measured downhitl from the upstope edge of the Bed.
Comments:
Upstope (4.D)
4.1)
't0.8
4.L
15[2
Downslope (4.J)
't0.0 50.0 11-l
Dispersal Bed: (2.8 x 2.C)EC
,O
c(o()
u
78.5Total Mound Len th 4.N
r
2.0Ctean sand tift (4.A)
I
20.0
I I
I
x
I
Otrstr€Pressure Distribution
Design Worksheet
IN MT X X ESOI POLLUIIONlIf coNTRoL AGExcY
Proiect lD: 251300010 v 04.02.2019
1 . Media Bed Width:10 ft
2.
^linimum
Number of Laterats in system/zone = Rounded up number of [(Media Bed Width - 4) + 3] + 1.
taterals Does r'p.t ody to dt-grdes
laterals
10 -4);31 +1=t(
3. Designer Setected Number of Loterols:
Cannot be less than line 2 (ExceDt in ot-erades)
4. Select Perforotion Spocing i
5. Selert Perforation Diometer Size:
6. Length of Laterals = Media Bed Length - 2 Feet.
50.0 ft Perforation can not be closer then 1 foot frorn edge.
7 /37
fr
in
2lt 48.0
3.0 16ftft Spaces
8. Number of Perforotlons per Loferol is equa[ to 1.0 ptus the Numb€r of Perforation
'pdlces.
Check tabte
betow to veriry the number of perforations p€r lateral guarantees less than a 10* discharge variation. The
vatue is double with a center manifo{d.
Number of Perforation Spaces =
Perlorotions Per Lnterol =Spaces + 1 =Perfs. Per Laterat
9. Totol Number of Pertorotions equats the Number of Perforotions per Laterol multiptied by the Number of
Perforoted Loterols.
16
17
Seled. Type of lAanifold Connection (End or Center):
klect Lateral Diameter (See Table) i
17
Perf. Per Lat, X Number of Perf. Lat. =
Spacing of laterats; ,trtust be greater than 1 foot and no more than 3 feet:
51 Totat Numb€r of Perf.
3.0 ft'10.
10.
11.
End
1.50 in
3
3
lladlln lhder d Peria"*iru Per L*ml b ferrilre <!0l Bdrarge Vuirtim
r/. lnch Prfc-etins 742 hch Perfontiors
P€r{orrti}n Spad4 (F€€t}Pipe Ohneter tlmhes)Per{c".thn $,xirT
{Fee{
Pipe Di.r?ter {erdre:)
I Itt l I tL th ?l
1 t0 t!'It l0 60 I lr t6 7t 31 6t
Iri E r2 5.1 2ti r0 l.l l2 6,r
3 E l2 l6 25 t2 3 9 t{t9 30
!1'16lrrh Prfrrlixr,l/E lrrh Perfontixr
Perfor-atim Soxiq {Fe€t}
Pir 0iame{r (kxfc;)tudorrtkxr lord'E
{ree0
Pip€ tI.nEt€r (ltxh.6)
I tv.lli l I lu 'tl1 2 l
2 l2 IE 16 46 E7 2 2l 3l 71 t49
211 24 .{)2;t 30 {t 69 t35
l t?t6 ?2 37 75 3 20 29 l8 61 lzE
3
7. Determine the Number of Perforotion Spaces. Divide the Length of Loterols W the Pertoration Spacing
and round down to the nearest whole number,
3.00
48.0
tl{
t6 l0
60
1
44
l7 l7 80 20
Or.s'r.Pressure Distribution
Design Worksheet
rn Mtx NEsoTl PoLt-ut lo xlll coNTRoLlGExcY
Uquid
Per Foot
(Gallom)
o.045
o.07a
o.t'to
o.170
o.3 ao
.661
12. Catcutate the Sqwre Feet per Pertorotion. Recommended volue is 4-11 ftz per perforotion.
Does not awly to At4rodes
6. kd Area = Bed Width (ft) X Bed Length {ft)
10 ft X 50 ft 500 ft2
b, Squore Fot per Perforation = M Areo dMded by the Total Number of Perforotions .
500 ft2 51 perforations =9.8 ft2 /perforations
13. Select llinimum Averoge Heod:1.0 ft
14.
15.
Seleft Perforotion Discharge (GPt{} based on Tabte:0.56 GPi per Perforation
Determine required FIow Rote by muttiptying the lotal Number of Perfs. by the Perforation Dtscharge.
51 Perfs X GPM per Perforation =29 GPM
Gatlons/ft16. Volume of Liquid Per Foot of Distrik)tion Piping (Table lt) :0.110
17. Volume of Distribution Piping =
= lMumber of Pe4oroted Loterals X Length of Loterols X (Vottrme of
Liquid Per Foot of Distribution PipirEl
X 48 ftx 0.110 gal/ft 15.8 Gallons
18. Minimum Detivered Votume = Volume of Distribution Piping X 4
15.8 gats X 4 =63.4 Gattons .5
2
3
I
pfe fron prr,rp
outt
oI from
I
altarnae lo(.tin
Comments/Special Design Considerations:
Volume of Liquid in
Diameter
(inches)
1.25
0.56
K Basic Pump Setection Design Worksheet rE Mlxr{l30l-r}olfurroxlIt coxtroL^c.xcY
1. PUIAP CAPACTTY P(oject lD: 25130010 v 0.1.0?.2019
Pae:5ure
1. lf pinping to gravity eote. the gatloi pe, mi.ute of th€ pmp:
2. lf prrnping to a pres$Jrized dbtrihJtion system:
3. Enter pump d€idptim:Demand oosing
29.0
GPA,I (10 - aS grn)
Pumping to Gravity or Pr6sure Distribution:
2. HEAD REQUIREATENTS
Table l.Frlctlon Loss in Plastic 100ft
Diameter linchesPiFlow Rate
Pr,l)1 1.25 1.5 2
10
12
t4
16
t8
20
25
30
35
4
45
50
55
60
65
70
75
E5
95
3.1
4.3
5.7
7,3
9,1
t 1.1
16.8
23.5
1.3
,.8
2.4
3.O
3,8
4.6
6.9
9.7
,2.9
16.5
20.5
0.3
o.4
0.6
o^7
0.9
't. t
1.7
2.4
3.2
4.1
5.0
6,1
7.3
8.6
10.0
11.4
13.0
16.4
zo.1
A- Elevation Difference ft
betvreen pump and point of discharge:
B. Distrlbution tlead Loss:
C. Mditionat Head Loss:0.0
ft
ft {aE to !r€d.t .qiFn ti, cr..)
Di strib.rilon Head l-o5s
Gravity Distribution = Oft
Pressure Oistribution based on Minimum Average Head
Value on Pressure Dlstrlbutlon \^/orksheet:
Minirnum Averaqe Head Distribrttio.r Head Loss
1ft 5ftzft6ft
5ft 1oft
D. 1. Sr.ppty Pipe Dia,tEter:
2. tupply Pipe Ler€th:60 ft
E. Fridion Loss ln Plartk Pip€ per '10oft from Table l:
Friction Lost =ft per t00ft of pipe
point. EstlE|ate by addtq 25X to supply pipe t€rBth to. fittirB lo6s. *tfly Pi,E Leryth
(D.2) X 1.8 - Eqrivoaent HF LeBth
60 ft x 1.25 75.0 ft
G. Catcdate 54ply Frr.tr'd, Lots by multtslrog Frictiot Loss kr ,@lt (Llne E) by the Egsrwfera Pir€ Length (LirE F) ard drn:de by tOO.
s{ppty Frlctioo Loss =
7.23 ft per l@ft x 75.0 ft rtm 1_7 ft
5
H. Totol Heod requirernent is the sur ot tE Aerotion Oiflerefte (Line A), the Distribrtbfl nead Lo65 (Li E B), ldditiorEt Head L6s (LiDe C), and
the Sippty F.iction Loss (Line 6 )
5.0 0.0 1.7 19.4ft+ft ftft
3. PUI4P SEt_ECflOr{
A pump
'Ill,3t
be setected to detiver at teart 29 .O Gf,r,t (LiE I or LiiE 2) with at terst 19 .4 feet oa total head.
9.1
12.4
17.O
21,A
12.7
2.0
12.7
Comrnents:
ffi m L|ltrtora rot lrrTtox
DETER'AII{E TANK CAPACTTY AND OI'TENSIONS Proie<t lD: 25r3000lo v&.m.2019
A- Dgljgn Flod (Bgn s,rn.ta).
B. ,{in. .eqrired Frr? ia* r.9.cit),:
C. Tan& Use:Doring
D. R€<orErEflded pump tar* cagactty:10,0O 6atr000
2. A- Tank l,lanutacturer:B- Tank r'lodel:
GallorE
GatlqB per inah
lidE
C- Cipacity frdn iianufactuaer:
O. GaI66 F iich frcrn manufacurer:
E. Liqrid depth of tad( trdn ,t!ar rrlwlr:
1085
77.8
t6-0
DETERIUNE DOSIXG VOLUIIE
3 Catcrlate VoAaa !o Coreart l'1 olE i{et o, the Frrrp rn6t he at te.i rt.Lrah6 frsn th€ botloln d dE Frrp t * 6 2 irdl6 oa kt€r co.lriB dle Brrp
b recdtrtlllded)
(Arrp ard ttod( hetht + 2 lrdE ) XGdaonrF r rrrdr CIC a 3E)
(1zl in + 2 inches) X 45 Galton!
Llit imr/,, o€tlrcr.d yolsne . ,{ X VoturrE of oistrihtion PipirB:
-lten 18 ol tt,€ Prcl!,)r2 Drttalhrtlon or ttem 1t ol tb,,-leyel
5 CalclJ,.ate *lExir m, hrrpo{tt yoftrna (25: of oesign Ftor)
(l,tifiirnurn dose)inches/dose
Desigo Ro ;600 GPD x 0.25 150 Gallons (llaximum doie)inche5/dose
27.8
6 *leca o pnwn,.ohrtlp afu ,,.c8 ,pth ,,i,,fJl,a,,n drd ,btdm:
7 C,,.olalr tu kr by . Hgn Ftow I D"{rE €d yol@l.
100 6atlons
ffi gpd +1m gat =6.00 DoJes
E Calqrlate tr.hbdc
L ofr/,.wqst,p,.yw-
8. trqrh o{ 9Aty PiPe .
C. Volu,E ol Lrq,//d kr Lttlllll tut ol npe =
60
hdl6
feet
D. Drotutuk = L.ngth ol Supqly Plpe X yoL re of Llqnd Pe. Lln€{Il F@t ol firy
60 ftx gat/ft =
9. Totot bsing volurrc - Dellftred yohfip ptus Droinboct
1m gat +r0.2 gat =110 Galtons
't0- ,linirrro Alarm VolunE = Depth ot atarm (2 or 3 i.dEs) X gaUorls per inch od tanl
inx 27-8 ga(/in =81.,{Gallons
2
Pipe
Diametcr
(i nches)
Per Foot
(C'alkcns)
1
1 .25 o.o78
o.1 10
2 o.170
3 0.380
4 o.661
o.170
r0.2
l
OE'IAND DOSE FLOAT SETTINGS
11. Catcr{ata fl@t s€porotb, oritorae uJirts HrB lbll,rre
Toad oortt'8 Yartt rf, lcdlo.6 fur krh
ll0 gal i 71.8 gauin =4.O lnches
12. lil€anrirts trorn bottoan of trnk:
A. Usaonce ao *a hrrry Or, flooa . Pudp a Ho(k height a 2 i.ch€r
lnch6fd DGe: ,1.0 in
14 in + 2in =16 lnches 2!.o in
20.O inB. Distonce to *t PufV On n@t-Disto,]te to *t ArWOll Fl@t . float 9?orctlon Dishace
16 tn+4.O 20 lnches
C- Ditt,,lf,e to set Alofin R@t - Asao7,Ee to *a hrnpon fldr + Iorr, [tpai (2-3 inches)
20 1.0 2l
t3.4 Cnl
r10 Gal
in+lnth6
Aarm Depth
ftrrp Or
Purp Off 15.O in
Pump Tank Design Worksheet (Demand Dose)
1.
wLP 1000
tloa.: ksign colcdotion are bo*d on this sptcilic tonk.
stfrstitutiDg a diflerent tank ndel will chonge tl'€ p,rmp
,lo6t or ainer s.ttingt. Co,rtaca desill'l.r it (jnn',ges are
Per lnch
5.4
Volume of Liquid in
Pipe
o.045
1.5
0.170
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UNrveRsrrv
or MrNxrsore
Septic System Management PIan
for Above Grade Systems
The goal of a septic system is to protect human health and the environment by properly trearing
wastewater before retuming it to the environment. Your septic system is designed to kill harmful
organisms and rcmove pollutants before the water is recycled back inlo our lakes, streams and
groundwater.
This management plan will identiry the operation and maintenance activilies necessary to ensure long-
lerm 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 pmvider-
However, it is YOUR rcsponsibility to make sure all tasks get accomplished in a timely manner.
The University of Minnesota's Seplic System Owner's Guide contains additional tip6 and
recommendations designed to extend the effecrive life ofyour syslem and save you money over time.
Pruper septic system design, inslallotion, operotion and mairrlenance means safe and cleon wole
Property owner Francisco & Heather Silva
Property Address 565 Lakota Ln Chanhassen, MN Property ID 251300010
System Designer Gary Bohn License # 949
System lnstaller Bohn Well Drilling Co.License # 1(X3
Service Provider/Maintainer Boho Well Drilling Co.Phone 952{45'4809
Permitting Authority City Of Chanhassen Phone 952-227-'1300
Permit #Date Inspected
Keep this Management PIan with your Seplic Syslem Owner's Guide. The Seplic Syslem Ou'ner's Guide
includes a folder designed to hold maintenance records including pumping, inspection and evaluation
rcports. Ask your septic professional to also:
. Attach permit information, designer drawings and as-builts ofyour system, ifthey are available.
. Kecp copies ofall pumping records and other maintenance and rcpair 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 ofthe Seplic System Owner's Guide, qll l-80G87G8636 or go to http://shoP.extension.umn.edu/
10/09
http ://septic.umn. edu
I
UNrveRstrv
on MrNxnsorn
Septic System Monogement Plan
for Above Grade Systems
Your Septic System
Soil Treatment Areg
Mound/Ar-Grade area (length x width): 78'5 ft x 36'5 ff
Rock bed size (lenglh x width): 50 ft x r0 ft
g Cleanouts or Inspection Porls
g Surface Water Diversions
Septic System Specifics
system Type: @ t OtI O III OIvr O vi
(Based on MN Rules Chapter 7080.2200 - 2400)
o System is subject to op€rating permit'
o System uses UV disinfection unit+
Typc of advanced reament unit _
I Addilional Management Plan required
Dwelling Type Well Construction
Number of bedrooms: 4
System capacity/ design flow (gpd):6@
Anricipated average daily flow (gpd):600
Comments
ln-home business? _ What type?
well depth (ft): > lo0
B Cased well Casing depth:> 100'
o Other (specify):
Distance from septic (ft),'75'
Is the well on the design drawi N
Septic Tank
a
9 Pump Tank (y'one) lffi gallons
Pumpcapacity 29 GPM
Alarm / visual / audibleo
. GouldsE EfTluent Pump rYpe
TDH 19.a Feer ofhead
One tank Tank volume: _gallons
Does tank have two compartments?OY ON
Two lanks Tank volume' 25o gallons
Tank is constructed Of concreteo
Emuenl Scr€en ,)ps:
'10/09
a
L]
t
rl
-
4r_,
:'.:...
UtttvBRstry
or MrNNnsore
Eslem Designer
Locol Governmenl:
State Requiremenl:
Septic Syslem Monagement Plan
for Above Grade Systems
Homeowner Management Tasks
These oryralion and maintenance aclivittes are )nur responsibility. Use the chart on page 6 to lrack
your aclivilies-
ldentiry the servicc intervals recommended by your system designer and your local govemment.
The tank assessment for your syslem will be the shortest interval of these thrce intervals. Your
pumper/maintainer will determine ifyour tank needs to be pumped.
check every S months
check every S months
check every 36 months
My tank needs to be checked
every 36 months
Seesonally or sever.l tim€s per yelr
a l*aks. Check (listen, look) for leaks in toilets and dripping faucets. Repair leaks promptly.
o Swfacing sewage. Regularly check for wet or spong/ soil amund your soil treatment area. If
surfaced sewage or strong odors are not corrected by pumping the tank or fixing bmken caps, call
your service professional. Untreated sewage may make humans and animals sick-
o Alarms. Alarms signal when therc is a problem; contact your maintainer any time the alarm
signals.
o Lint fher. If you have a lint filter, ctreck for lint buildup and clean when necessary. Consider
adding one after washing machine.
a EflIuent screen. lf you do not have one, consider having one added the next time the tank is
cleaned.
Annuelly
o Vater usage rale. A water meter can be used to monitor your average daily water use. Compare
your water usage rate to the design flow of your system (listed on lhe next page). Contact your
septic professional if your average daily flow over the course of a month exceeds 70olo of the
design flow for your system.
o Caps.Make sure that all caps and lids are intact and in place. Inspect for damaged caps at least
every fall. Fix or rcplace damaged caps before winter to help prcvent freezing issues.
o lYater conditioning devices- See Page 5 for a list of devices. When possible, pmgram the recharge
frequency bced ot water demand (gallont) ralhet lh^n time (days). Recharging too frequently
may negatively impact your septic system.
a Reeiew your water usoge rare. Review the Water Use Appliance chart on Page 5. Discuss any
major changes with your pumper/maintainer.
During each visit by a pumper/maintriner
o Ask if your pumper/maintainer is licensed in Minnesota-
o Make sure that your pumper/maintainer services the tank through the manhole. (NOT though a 4"
or 6" diameter inspection pon.)
o Ask your pumper/maintainer to accomplish the tasks listed on the Pmfessional Tasks on Page 4.
-3-
-
10109
UuIvERsIry
on'MrNxesorn
Septic System Management Plan
for Above Grade Systems
Professional Management Tasks
These are lhe operalion ond mainlenance aclivities lhal a pumper/maintainer performs lo help enswe
longlerm performance of yow system- Professionals should refer to the O/M Manual for detailed
checHists for lanks, pumps, alarms and olher components. Call 800-322-8642 for more details-
o Written rccord provided to homeowner after each visit.
PlumbinglSource of Westewater
o Review the Water Use Appliance Chart on Page 5 with homeowner. Discuss any changes in
water use and lhe impact those changes may have on the septic system.
o Review water usage rates (if available) with homeowner.
Septic
o
Tank/Pump Tanks
Manhole lid. A riser is recommended if the lid is not accessible from the ground surface. Insulate
lhe 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 oudet pipe. (lfthe water level is below the bonom of the outlet pipe, the tank may
not b€ watertight lf the water level is higher than the bottom of the outlet pipe ofthe tanlq the
effluent screen may need cleaning, or there may be ponding in the drainfield.)
Inspection pipes. Replace damaged caps.
Bfiles. Ch*k to make sure they are in place and attached, and that inlet/oudet baffles are clear
of buildup or obstructions.
Efrluent screen. Check to make sure it is in place; cleon per manufacturer recommendation.
Recommend rctrofifted installation ifone is not present.
Alarm. Yeify thx the alarm works.
Scum and sludge. Measure scum and sludge in each compartment of each septic and pump lank,
pump ifneeded.
o
o
o
o
o
o
Pump
o
o
o
o
o
Pump and controls. Check to make sure the pump and controls are operating correctly.
Pump vaull. Check to make sure it is in place; clean per manufacturer rccommendations.
Alarm. Yerify that the alarm work.
Drainback. Check to make sure it is operating properly-
Event counter or run ,rme. Check to see if there is an event counter or run time log for the pump.
If there is one, calculate the water usage rate and compare to the anticipated average daily flow
listed on Page 2.
Soil Treatment Area
o Inspection pirys. Check to make sure they are properly capped. Replace caps that arc damaged.
a Surfacing ofeflluent. Check for surfaced emuent or other signs ofproblems-
o Lateralfushing- Check lateral distribution; ifcleanouts exist, flush and clean as needed-
o Ponding. Check for ponding. Excessive ponding in at-grade and mound beds indicates
problems.
All other components - inspect ss listed here:
-4-
10/09
Ur{rvsnsrrv
or MrlrNssorA
Septic System Management Plan
for Above Grade Systems
Appliance Impacts on Syslem Managemellt Tips
Garbage disposal
. Uses additional water.
. Adds solids to the lank-
. Finely-ground solids may not settle.
Unsettled solids can exit the tank
and enter the soil treatmenl area.
. Use ofa garbage disposal is not recommended.
. Minimize garbage disposal use- Composl iostead.
. To prevent solids fmm exiting thc tank, have your
tank pump€d more frequently.
. Add an eftluent screln to your ta[k.
Washing machine
. Washing several loads on one day
uses a lot ofwater and may overload
your system.
. Overloading your system may
prEvent solids from seltling out in
the tank- Unsettled solids ca$ exit
the tank aod eoter the soil tealmelt
arca.
. Choose a liontloader or water-saving top-loader,
thcse units use less water than older models.
. Limit the addition ofextra solids to your tank by
using a liquid or easily biodegradable detergents.
. Insall a ling filter afler the washer and an emuent
scre€n on your tank.
. Wash only full loads.
. Limit use ofbleach-based detergents-
. Think even - spread your laundry loads
lhroughout the week.
2d floor laundry
. Thc rapid speed ofwater entering
the tank may reduce performance-
. Install an emuent scr€en in the scptic tatrk !o
prevart the reless€ ofexccssive solids to the soil
treatmgnt arca.
. Be sure that you hav€ adcquatr tank capeity.
Dishwasher
. Powde*d and./or high-phosphorus
d€teBents c8n negatively impact the
performance ofyour tank and soil
treatment arca.
. New models promote "no scraping".
They have a garbage disposal inside.
. Use gel dele8ents. Powdered d€t€rgents may add
solids to the tank.
. Use detergents that are low or no-phosphorus.
. Wash only full loads-
. Scrape your dishes anyways to keep undig€sted
solids out ofyour septic system-
Grinder pump (in
home)
. Fincly-ground solids may not settle.
Unsettled solids can exit the tark
and eder the soil treatmenl arra.
. Expand septic tsnk capacity by a factor of 1.5.
. Include pump monitoring in your maintenanc€
schedule to ensure that it is working pmperly.
. Add an effluenl sqeen-
Large bathtub
(whirlpool)
. Large volume ofwater may
overload your system-
. Heavy use ofbath oils and soaps can
impact biological activity in your
tank and soil trealment area.
. Avoid using other water-use appliances at lhe
same time. For example, don't wash clothes and
take a bath at the same lime.
. Use oils, soaps, and clcaners in the bath or shower
sparingly.
Clean Water Uses Impacts on System Management Tips
High-cfficiency
fumace
. Drip may resslt in fiozen pipes
during cold weather-
. Re-route water into a sump pump or directly out
ofthe tpuse. Do not route furnac€ recharge to
your septic system.
Water softener
Irco filter
Reverse osmosis
. Salt in recharge water may affect
syst€m performance.
. Rechargc water may hydraulically
ovedoad the system.
. These sources produc€ water that is not sewage
and should not go into your septic system.
. Reroute water tom thcse sourc€s to another
outlet, such as a dry well, draintile or old
drainfield.
. When replacing consider using a demand-based
recharge vs. a time-based recharge-
. Check valves to ensurE proper op€ration; have
unit serviced per manufacturer dircctions
Surface drainage
Footing drains
. Water from theso sources will likely
ovedoad the system-
-5-
1O,!9
Water-Use Appliances and
Equipment in the Home
ry
UllrvrRslry
or MrNNssore
Notes:
Septic System Managemenl Plan
for Above Grade Systems
Maintenance Log
Ttack maintenance aclivities here for easy reference. See lisl ofmanagemenl tasks on pages 3 and 4
Activity Date accomplishcd
Leaks: check for plumbing leaks
Soil treatment area check for surfacing
Linl filter: check, clean if needed
EJIIuent screen: if owner-maintained
Chec* onnually:
Water usage rate (monitor frequency_)
Caps: inspecl replace ifneeded
Water use appliances - review use
Other:
II II
Mitigation/conective action plan:
'As tie or're.r of t,ljs ,S.S?S, I urde.stand it is ay .resporsjbtTity to prop,erl.y opetate enct ',aintaintrre seeagre tlertl|ent syste,tr on thTs ptoperty, utilizing the t anagenent plan- If tequiretuents intlris lranaqeEent Pfan are not aet, L -). pto@tly ^otify the petnlttinq auahoricy and takenecessaty corrective actions- I
,rea for fDture use as a soi-l t
fI systeltr, I aqtee to adequately protect trre reseflre
Date
n lling Co.g",1;1""g1on g 1043
i
Owner S
M Plan
Permitti Authori City of Chanhassen
-6-
10rc9
Check frequently:--t---l
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