HomeMy WebLinkAbout2005-P09159 - new septic system PERMIT
CITY OF ORONO
2750 Kelley Parkway- PO Box 66 Permit Number: po9159
Crystal Bay, Minnesota 55323 Permit Type: Septic
(952) 249-4600 Date Issued: 9/21/2005
SITE ADDRESS: 2240 Devin Lane Unit#
Long Lake,MN 55356
P��� 03-117-23-22-0017
DESCRIPTION:
Proposed Use: Residenrial
Permit Class: General
Se tic Permit Sub-type(s): New Septic System
Permit Type: p �
DETAILS:
Approved per resolution#:
Separate permits required:
NOTICES/REMARKS:
FEE SUMMARY: Permit Fee: $ 100.00 valuation: $ 0.00
State Surcharge Fee: $ 0.50
TOTAL FEE: $ 100.50
APPLICANT: Ingleside Engineering&Construction, Inc. OWNER: Mr. &Mrs. Childs
PO Box 127 2240 Devin Lane
Loretto,MN 55357 Long Lake MN 55356
THE UNDERSIGNED HEREBY REQUESTS PERMISSION TO MAKE THE REAL IMPROVEMENTS SPECIFIED
AND AGREES TO DO ALL WORK IN STRICT COMPLIANCE WITH ALL CITY OF ORONO ORDINANCES AND STATE OF
MINNESOTA BUILDING CODE REQUIREMENTS.
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� APPLICANT PER E SIGNATURE ISSUE BY SIGNATURE
Copies: 1-File(Signatures Reguired), 1-Applicant, 1-Monthly Reports, 1-Assessing,(If Septic, 1-Septic) Page 1
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CITY OF ORONO SEPTTC SYSTEM PERNIIT APPLICATION
Box 66 (2750 Kelley Parkway)
Crystal B�y,Mn 55323
JOB SI'TE ADDRESS ��1 L%% �..C.� (,� �C,.%� __ ,��r'�C�
Occupancy Type: Residential l.� Commercial Other
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Pei•mit Type: New or Replacement System $100.00 �'C?��
Repair Esisting System $ 50.00
(Tanks or Dr•ainfield)
$0.50 State su►�cha�•ge added to above fees
* See fee schedule for non-residential permit fees
O�vner's Name: �(w�t � �', �a 0 �� Phone Number:
Mailing Address: �,��j C- f�i.►, r�,J �� g�t�I'L7 City: Zip:
Conti•actor's Name: T �� ,'" �� Phone Number: '7�� �� y 7=� -- a�(,�
Mailing Address: i--j�� r�%i'�'����'i �� City: Zip:
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%** DO NOT NIAII, PA�1ViEN"Y'ZZ'I�'gi 'i'HIS APt�Li�ATI�1�1***
GENERAL INSTRUCTIQNS
l. Applications for septic system permits may be mailed or submitted in person at th� City
Offices; however, permits will not be mailed out. The permit must be picked up in person
at the City Offices and work must not begin unless the permit card is on the job site.
2. Permits will be issued only to contractors holding a Minnesota Pollution Control
A�ency(MPCA) Septic System Installers License.
3. All work must be done in accordance with the approved septic system design. Design reports
are not considered approved unless accompanied by the "City of Orono Septic System
Approval" cover sheet signed by the City Inspector.
4. The followin� inspections will be required for all septic systems:
A. Pre-installation site inspection to include inspector, installer, and general contractor.
B. Tank installation prior to covering.
C. Drainfield trench installation prior to covering. For mounds, inspection is required after
rou�h up but prior to sand placement (sand will be jar tested for silt content), and again
during pressure distribution pipin� installation in the rock bed.
D. Final inspection to verify proper final cover depths and to verify that all pump stations
(where required) components are functional and comply with codes.
5. Individual holdin��IPCA Installers License shall be present during all inspections. A 24-ho�ag•
notice is requii•ed for all inspections.
NOTE: Applicant must initial all spaces. Fill in all appropriate blanks and check all appropriate
boxes.
1. I have received a copy of the system design including the City of Orono Septic
System Approval Cover Sheet.
2. I will be installing the follo�vin�:
A. Tanks: Precast Concrete Other Manufacturer
Tank Capacities: 1) gal. 2) gal 3) gal
B. Pump Station (if required)
Pump make& model (attach pump curve&
literature); system design requires gpm at feet of head.
Hi�h water alarm make & model . Outside
electrical work to be completed by installer electrician other.
C. Treatment System:
Trenches: s.f. Mound
Depth of rock below pipe " Rock bed dimensions ' x '
Drop Boxes Sand bed dimensions ' x '
Distribution Box Pressure Dist. Pipe Diam. "
Manifold Pipe Diam. "
D. Final Cover/Topsoil to be: borro�ved from site
(show location on site plan)
trucked in
The undersigned hereby applies to the City of Orono for issuance of a septic system installation permit,
agrees to do all work in strict accordance with ordinances of the City and the regulations of the State
of Nlinnesota,and certifies that all statements made on this application are complete,true and correct.
Signature of Applicant Date:
l�IPCA License No.
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Staff Review: Approval / Deniai
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Reviewer: ��c� ''I��— ��Z�i- + Date: / � '•J
iZeason for Denial:
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Ingleside Water Supply Engineering Brian Van Beusekom
Engineering & Irrigation Systems
Construction, �IIC. � Test Borings TEL (763) 479-1869
P.O.Box 127 � FAX (763) 479-3161
�f���+s ��'� Dig. Pager (651) 908-4601
�l , _ 4920 Highway 55 �?� �ri Email bvanbeusekom C�?aol.com
e � , LOretto,MN 5 Lar N 45°04.03",Lon W 83°38.95'
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�I�Np�i�11'i`�',� ,e em er 9,2005
Brad& Andrea Childs ,�,���� 70
2240 Devin Ln ,�pp4���,
Orono, MN 55356 M��at�rS��s�+lea�t 8 0303
����� _
Job site: Same, ����
GEN�RAL INFOKMATION
This site has a 1979 era mounded absorption system with a 10'X 45' rock bed. The rock bed has soil
badly mixcd in with the rock. Testing the distribution manifold proved that effluent was getting to the entire
manifold, yet the effluent peculated to the surface before getting to remote areas of the rock bed. Only after
5 minutes would effluent begin to distribute to the entire rock bed. Installing a uew rock core was considered
but borings into the underlying sand showed the sand bed to be limited dimension with very wet soil
underneath. A new lager system for 5 bed rooms was desired too.
Therefor�this on site sewage treatment system is designed for a type 1, 5 bedroom home with out a garbage
disposal or 75U gal lons per day maximum use or an average use of 2/3 of this amount on day in day out
basis.The tanks need to be kept shallow above the shallow seasonal ground water. Construction should
begin only after reviewal by the local building inspector and after obtaining the permit. Construction should
be done in accordance with the Minnesota Pollution Control Agency Chapter 7080 and local ordinances by a
MPCA cc;rtified contractor.
The iniormation for this design is gathered from the several spots checked. lf the constructor discovers
anything the spot findings(like springs high water table,high mottling, fill, etc),he shall consult with me
immediat�ly to see if aily modification of the design is necessary. If he doesn't he is proceeding at his own
risk.
The constructor shall be allowed however to angulate the system to fit the nuances of the site. The
suggested tank locations and well location can be modified.Just make sure all setbacks, pump requirements,
draina�c; Irc�zing, etc. considerations are made.
The soils on this site are mapped as LrB, lester loam). Mottling indicates a seasonally saturated soil at
18" on tl�c primary site. Therefore a pressurized mound is required. By code the mound rockbed must be
installed 3' above this seasonally saturated soil.
1�he soils at a depth of 12" have an average percolation rate of 31 minutes per inch on the primary site
and meet the guidelines for treating septic effluent. The design is based on the rate of 31 -45 MPI that is
appropriate for loam classified top soil.
NOTE
The recipient of this report must see that some one fence off or whatever is necessary to keep the sites
from being compacted. Driving over the site compacts the soil, decreasing its ability to treat effluent-even to
the point of some lucal building official considering the site unsuitable.
SOIL SUREACE PRLPARATION
The total area selected for the mound shall be roughened up to thoroughly break up any sod layers and to
provide a suitable transition zone between the original soil and the sand. The area shall be roughened only
when the soil to 12" below the surface is drier than the ptastic limit according to AASHO designation: T 90-
61. Backhoe teeth or chisel type plowing may be used.Care must be taken so as not to compact or puddle
deeper soils. In no case shall any surface soil be removed frorn the area.
CONSTKUCTION MATERIALS AND PROCEDURES
A minimum of 12" of sand shall be placed level under th��fi�er material. A low ground pressure or track
type shal I be used and care must be taken to keep a minimum of 6" sand under the tracks to minimize
compac�ion.
Sand is defined as a soil texture composed by weight of 95 - 100%passing#4 sieve, 80- 100%passing
# 8 sieve, 0- 100% passing# 10 sieve, 0- 100%passing#40 sieve, 0-40%passing#60 sieve, 0- 5%
passing# 200 sieve and contain less than 3 %deleterious substances and be free of organic impurities
Filter material is defined as clean rock,crushed igneous rock, or similar insoluble, durable and decay
resistant inaterial free from dust,sand, silt,or clay.The size shall range from 3/4"to 2 1/2" diameter.
PRESSURE DISTRIBUTION
Effluent shall be distributed over the filter material by three 1 1/2" diameter perforated pipes under
pressure. Perforations shall be 7/32" diameter drilled in a straight line along the length 36" on center. Holes
, shall be drilled straight,with a sharp bit and the burrs shall be removed. The holes shall be directed
downward.
The perforated laterals shall have their ends capped and shall center fed with a 2" manifold with 40" '
center to center spacing and 20" spacing to the edge of the filter material.
The 2" forced main from the pump shall be sloped to drain back or shall be buried deep enough to
prevent freezing.
Geo-Textile material shall be placed over the filter material.A 12" sandy loam cap shall be mounded
over the t7tter material.A 6"topsoil cap is applied over the entire mound area so that water is shed frum the
area and a good erosion resistant grass cover can be established by the landscaper.No shrubs may be planted
on the mound but shrubs or dry footed trees around the perimeter would be beneficial.
Whenever mounds are located on slopes,a diversion swale should be employed to intercept and divert
runoff.
Nothing other than gray water,(laundry, showers,etc.)human waste should enter the system. It should
never e�ceed the maximum design flow otherwise the solids and sludge will be flushed on through to the
absorption field,plugging the soil. Garbage disposal and powdered soaps add sludge to the tank. Using 1000
flushes or the new antibacterial soaps can have a detrimental effect also. Frequent pumping of the tanks is
insuraiice against premature system failure. Under ordinary conditions pump a two-tank system every two
years and every year for a one tanlc system.
I recommend you either monitor the sludge level or have your septic pumper schedule you for re�;ular
routinc maintenance.
Funher info on maintenance is available from U of Minn. (WWW BAE UMN.EDU/SEP'fIC/)
(WV�'�b.�xtension.UMN.edu/distribution/naturalresources/DD6583.HTML/),
MOSTCA(WWW MOSTCA.COM),National Small Flows Clearinghouse
(WW\^:'.��td wvu edu/nsfc/nsfchomepa�e.html/),or myself.
�.���1�l����i�''1
Brian Van Beusekom President MPCA# 874
Jobsite: 2240 Devin Ln
SETBACKS
Tank from building and properly lines 10'
Absorption field from building 20'
Tank from well 50'
Absorption field from well with 50'of water tight casing or penetrating at least 10'of impervious material
50'
Absorption field 100' from shallow wells
Absorption field to recreational lakes and streams 75'
Absorption tield to�,�eneral development, lakes and streams 50'
Absorption field to natural environment, lakes and streams 150' •
SUMMARY
G�;sign Percolation rate 31 -45 MPI
750 gallons per day flow
(2) 1000 ballon septic tank(e�csisting) �
(1) 1000 pumping cl�amber(new)
Pump for 38 GPM at 17'TDH exsisting
Pump�otf at 12"
Pump on at 18.3"
Alarm on at 20.3"
actual Reserve 44.x"-20.3"=633 gallons
(Reservc recommended=450 gallons)
Alarm system 2 circuits(weather proof and secured outlet)
Rock layer dimensions 10' X 63'
Mound dimensions=�1.' X 85.' upslope and 87'downslope
33 tons of rock
270 tons of sand
100 cu. Yds. Topsoil cap
22 cu. Yds. To be placed over the rock bed
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University of Minnesata Mound Design Worksheet
Greaterthan 1%Slopes
A FLOW
Estimated 750 gpd(see figure A-1)
or measured x 1.5(safety factor)= 0 gpd
B. SEPTIC TANK LIQUID VOLUMES
Septic tank capacity 2-1000 existing gallons(see figure C-1)
Number of tunkslcompartments
Effluent Filter (yes/no) �a
C-1 Septic Tank Capacity ia Gallons
Number of Minimum Capacity with Capacity with
Betlrooms Capacity Garb.Disp. Disp.and Lift
2 or less 750 �`:�.`,; 1125 � 15U0
3 or4 1000 1500 2000
5 or 6 15G0 . 2250 30G0
7,8 or 9 20pQ ,, 3000 4400 . `
�. SOILS(Sita evaluation data)
1. Depth to restricting layer= 1.5 feet
2. Depth of percolation tests= 12 inches
3. Texture clay loam-Loam
4, Soil loading rate(see Figure D-33) 0.45 9Pd�ft2
Percolation rate 31�5 MPI
' 5. %Land Slope 4.0 %
D. ROCK LAYER DIMENSIONS
, 1. Multiply average design flow(A)by 0.83 to obtain required area of rock layer:Item A x 0,83=
750 gpd x 0.83 ft2/gpd= 630 ftz
2. Determine roc;k layer wldih =0.83 ft`Igpd x Linear Loading Rate(LLR)(see LLR chart
0.83 ftZ/gpd x 12.00 = 10.0 ft
LLR Chart
Perk Rate LLR
<120 MPI <=12
>=120 MPI <=6
3. Length of rock layer=area divided by width=
630.0 ft2 / 10.0 feet= 63.0 ft
E. ROCK VOLUME
1. Multiply rock area by rock depth to get cubic feet of rock
630.0 X 1.0 ft= 630.0 ft3
2. Divide h'by 27 ft31yd3to get cubic yards
630.0 ft3 I 27 = 23.3 yd3
3. MulUply cubic yards by 1.4 to get weight of rock in tons;
23.3 yd3 X 1.4 tonlyd3 = 32.7 tons
Page 1 of 6
�. ABSORPTION WIDTH Absorption raUo: �-� �
1. Absorption width equals absorption ratio times rock layer width ,
2.67 x 10.0 ft = 27.0 ft
G. MOUND SLOPE WIDTH&LENGTH(Greater than 1%)
1. Downslope absorption width=absorption width minus rock layer width
27.0 feet - 10.0 feet= 17.0 ft
2. Calculate mound size
UPSLOPE
a.Depth of clean sand at upslope edge of rock layer=3 feet minus distance to restricting layer(C1)
3.0 ft - 1.5 ft= 1.5 ft
b.Mound height at the upslope edge of rock layer=depth of clean sand for separation(G2a)
at upslope edge plus depth of rock layer(1 foot)to depth of cover(1 foot)
1,5 ft+1ft+1 ft= 3.5 ft
c.Upslope berm multiplier based on land slope(see figure D-34) _
Selected berm multiplier: 3.45
d.Upslope width=berm multiplier(G2c)times upslope mound height(G2b):
3.45 x 3.5 ft = 12.1 fi
DOWNSLOPE
e.Drop in elevation=rock layer width(D2)times percent landstope(C5)/100
10.0 ft x 4.0 % /100= 0.4 fl
f.Downslope mound height=depth of clean sand for slope difference(G2e)
at downslope rock edge plus the mound height at the upslope edge of rock layer(2b)
0.4 ft + 3.5 ft= 3.9 ft
g.Downslope Germ multiplier based on percent land slope(see Figure D-34
Selected berm multiplier. 4.76
h.Downslope width=downslope multiplier(G2g)times downslope mound height(G2�
4.76 x 3.9 = 18.6 ft
i.Select greater of G1 and G2h as the downslope width 18.6 ft
j.Totai mound width is the sum of upslope(G2d)width plus rock layer width(D2)plus downslope width(G2i)
12,1 ft+ 10.0 ft+ 18.6 ft= 40.7 ft
k.Total mound iength is the sum of upslope width(G2d)plus rock layer length(D3)plus upslope width(G2d)
12.1 ft + 63.0 ft+ 12.1 ft= 87.2 ft
Final Dimensions (slope>1%) 40.7 ft x 87.2 ft
I hereby certify that all work has been completed in accordance with all applicable ordinances,rules&laws.
���� �"'�,�ci�� (signature) Q'7(.�_picense#) _��1�(date) �
Page 2 of 6
� H. SAND VOLUME
1. Upslope Volume+ Volume under rockbed+Downslope Volume �
a.Upslope Volume:(depth of clean sand+1)x(upslope berm) x(mound length)/2=ft3
25 ft x 12.1 ft x 87.2 ft /2 = 1318.9 ft3
b.Volume under rockbed: (average depth of sand under rock)x(rockbed width)x(mound length)=ft3
1.7 ft x 10.0 ft x 87.2 ft = 1482.4 ft3
c.Downslope Volume: (depth of clean sand+1)x(downslope berm)x(mound length)I 2=ft3
2.9 ft x 18.6 ft x 87.2 ft / 2 = 2351.8 ft3
Totai cubic feet: = 5153.1 ft3
2. Divide ft3 by 27 ft31yd3 to get cubic yards
5153.1 /27 = 190.9 yds3
3. Multiply cubic yards by 1.4 to get weight of sand in tons
190.9 yds3 x 1.4 267.2 tons
4 Add 10%for ConsUuctability
267.2 tons x 1.1 = 293.9 tons
A-1 Estimated Sewage Flows in GPD
No.of ,
Bdrms Class I Ciass II Class III Class IV
2 3U0 '�� 225 � 180~ . 60%of
3 45t1 300 218 the
4 60t1 375 2�6 values
5 750 . 450 294 ' in the
' 6 90D 525 337 Class I,
7 105Q 600 370 II or II
8 12 675 4Ud columns
D•33 Absor tion Width Sizin Table
Perc Rate Soil Texture Loading Rate Absorption
mpi gpd/sq ft Ratio
Coarse sand
<5 Loamy sand 1.20 1.00
Med.,Fine sand
6-15 Sand loam 0.79 1.50
16-30 Loam 0.60 2.00
31�5 Silt Loam,Silt 0.50 2.40
46-60 Clay loam,Silty 0.45 2.67
or Sand Cla Loam
61-120 Silty or Sandy
Clay or Clay 0.24 5
>120'
"Must be other or rformance.
Page 3 of 6
• 4"inspection pipe
� � � 12"topsoil
1.5
riginal grade
Restrictive layer 1.5
12.1 10.0 18.6
: ° `
� 28.6 '<
absorption width
Mound Detail: Land slope> 1%
12.1
Upslope 6erm:
" Rockbed
�2.1 Width: 10.0 �2��
Total Lengih: 63.0
Width:
40.7
Downslope berm: Downslope absorptlon width:
18.6 17.0
Totat length: 87.2
Notes:
Divert surfuce water away from mound,
Page 5 of 6
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Ingleside Engineering
& Construction Inc.
Soil Borinq Loq PO Box 127
Loretto, MN 55357 �
Name: Brad &Andrea Childs 763-479-1869
Address: 2240 Devin Lane �
Date: 8/22/2005
B=1 Depth (inches) Texture Color Notes
0-12 To soii 10YR3/2
12-18 Loam 10YR5/3 Mottles 18"
18-48 Loam 10YR6/1
B_2 Depth (inches) Texture Color Notes
0-24 To soil 10YR3/2
24-27 Loam 10YR5/3 Mottles 18" �
27-46 Loam 10YR4/2
B=3 Depth (inches) Texture Color Notes
0-20 To soil 10YR3/2
� 20-30 Sand Loam 10YR5/3 Mottles 22"
30-42 Sand Loam 10YR3/2
B=4 Depth (inches) Texture Color Notes
0-12 To soil 10YR3/2
12-19 Loam 10YR4/3 Mottles 19"
19-48 Loam 10YR6/2
B_5 Depth (inches) Te�ure Color Notes
0-12 Sand Loam 10YR3/2
12-18 Sit Loam 10YR4/3 Mottles 18"
18-48 Sil Loam 10YR6/2
II hereby certify that I have completed this work in accordance with applicable ordinances,rules and laws.
Signature � �,�_.�v License# �,y�
DATE ME
CITY OF ORONO CALLED IN
INSPECTION N TICE p SCHEDULED i I��+d r ��=i�o/a�
PERMIT NO. O .� l COMPLETED � ,� �
ADDRESS �� `�� ��c.).^�l.) C��A �UC
OWNER � �'` ' � �' S CONTR. �n,�1 P S:C��
TELEPHONE NO.
� DESCRIPTION
� 01 FOOTING 11 MECHANICAL RI 18 EXCAV/GRADING/FILLING
Q 02 FRAMING 13 MECHANICAL FINAL 19 LAKESHORE/WETLANDS
� 03 INSULATION 24/25 WOOD BURNER/FIREPLACE 34 TREE REMOVAL
� 04 WALL BD. 12 WATER HOOK-UP 17 SITE INSPECTION
Z
Q 05 FINAL 14 SEWER HOOK-UP 06 PROGRESS
� 07 DEMO-SITE 27 SEPTIC MAINT. 21 COMPLAINT
� 07 DEMO-FINAL EPTIC INSTALL. 22 FOLLOW-UP
? 09 PLUMBING RI 3 PTIC FINAL 35 HARD COVER REMOVAL
J 10 PLUMBING FINAL 36 FOUNDATION/REMOVAL
� OWNER/CONTRACTOR TO MEET YOU:_YES_NO
� COMMENTS: ��'���'SC'T �����4 r-f"/'L�-�i•�l
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� �ORKSATISFACTORY:PROCEED [7 PROJECTCOMPLETE � ^ - � �
W ❑ CORRECT WORK&PROCEED C ISSUE CERTIFICATE OF OCCUPANCY
O ❑ CORRECT WORK,CALL FOR REINSPECTION TEMPORARY
V BEFORECOVERING PERMANENT
❑CORRECT UNSAFE CONDITION WITHIN HOURS. ,�, pHOTO TAKEN
INSPECTOR WILL RETURN � CITATION ISSUED
❑STOP ORDER POSTED.CALL INSPECTOR
O INSPECTION REQUIRED.CALL TO ARRANGE ACCESS.
Call for the next inspection 24 hours in advance. �952� 249-46QQ
OwnerlContractor on site:
Inspector. �,L / �����
White Copyllnspector's File Canary CopylSite Notice