HomeMy WebLinkAboutSeptic info including design .� 0,�.
O , O CI'TY OF ORONO
� � r�' � MunicipalOffices
r�',, ,p'�' � Street Address Mailing Address:
'� G'�' 2750 I{elley Parkway P.O. Box 66
'�.� .�y�y Orono, MN 55356 Crystal Bay, MN 55323-0066
kESH�
August 16, 2007
Dear Owner of 460 BIG ISLAND:
This is a friendly reminder to all Orono property owners with non-compliant, on-site septic systems:
Septic System Upgrade Deadline is Fast Approaching
Beginning in the mid-1990s the City began to identify those septic systems that made use of trench
drainfields, a majority of which do not maintain the minimum required vertical separation above
seasonal water tables. Each existing system was subjected to soil borings to determine the seasonal
water table depth. When a system was identified as non-compliant, the owner was notified of the need
to bring the system into compliance and given several years to complete the upgrade.
The deadlines to upgrade were divided into whether or not the property was in the Shoreland District
(within 1000' of a lake or within 300' of a protected tributary stream). Properties in the Shoreland
District were given until December 31, 2007 to become compliant. Properties outside the Shoreland
area with non-compliant systems were allowed until December 31, 2010 to conform to the septic code.
The above noted property is located in the Shoreland District and needs to be updated before
December 31, 2007.
Don't wait until the last minute! The City is strongly recommending that property owners not wait
until the deadline arrives to bring their systems into compliance. The process to upgrade your septic
system can be quite lengthy. The first step in the process is to hire a site evaluator and designer to
determine what type of system is required and provide the blueprint for the system installation.
Secondly, the property owner must then contract with a septic system installer to have the system
constructed.
The installation of a septic system is very weather dependent, especially for mound systems, which can
only be installed when the ground is relatively dry, i.e. typically June through September. Contractors'
schedules fill up quickly, so it's important to start your planning and design process now to ensure a
timely installation. The period of time from deciding to update your septic system to the actual
installation can easily exceed three to four months, or more. Please contact the Building and Zoning
Department at 952-249-4600 with any questions you may have about bringing your septic system into
compliance.
For a list of licensed designers and installers you may go to www.ci.orono.mn.us, click on
City Departments, click on Septic, then click on the link to www.pca.state.mn.us.
Telephone (952) 249-4600 • Fax(952) 249-4616
www.ci.orono.mn.us
CITY OF ORONO � O�
Municipal Offices O O
Post Office eox 66
Crystal Bay, MN 55323-0066 � � ON—SITE SEWAGE TREATMENT
� � INSPECTION REPORT
ti
��9kESH��'�G
Owner• � ' �� Address• '� �
Permit #'s:�r�f' Dates: ^� Contractors: (/��}'Y�➢.�`\
City ordinance number 100 requires that each on-site sewage treatment system in Orono be inspected on a regular basis.
The on-site sewage treatment system at the above address has been inspected and appears to fall into the category
checked below.
(This is I� an existing system [ ] neu construction)
SYSTEM CONFORMITY (1-3):�
1 "CODE SYSTEM"-A system which meets all the location, design, and construction standards of the current City
Codes, and which is operating satisfactorily by treating and disposing of the entire current sewage input
without discharging any pollutants into ground or surface waters.
2 "CONFORMING SYSTEM"-A system which does not meet all the location, design, and construction standards of the
current City Codes, but aas installed according to the code in effect at the time of installation, and which
is operating satisfactorily by treating and disposing of the entire current sewage input without discharging
any pollutants tnto ground or surface waters.
"NON-CONFORMING SYSTEM"-A prohibited system; a system located within a designated 100-year floodplain; any
system which may or may not meet all the location, design, and construction standards of the current City
/ Codes and which is failing for any reason; and any system with less than 3 feet of unsaturated soil g�p�
�� between the distribution device and the limiting ,r �?�
, f J
P
J� (The limiting soil characteristic 'lx has or [ ] has not been identified t is time. f t e limiting soil
characteristic has not been identif'i"ed, this classification may be subject to revision.)
TANK CONDITION (5-10):
Tank inspection indicates:
5 Pumpout not needed at this time.
6 Solids accu�lation in tanks indicates they should be pumped out this year to help prevent future problems.
7 Solids accumulation in tanks is at a critical level. Tanks should be pumped out as soon as possible.
8 , System is discharging to the surface. Tanks must be pumped out within 48 hours to eliminate surface discharge.
�1 Inspection risers missing-tanks could not be inspected. lnspection risers (4" dia. pipe) must be installed in each
tank at next p�xnpout. If tanks have not been pumped out within the last three years, they should be pumped
out now.
10 Inspection pipe is located directly over tank baffle Cdoes not give accurate measurement of solids accumulation).
!f tanks have not been pumped out uithin the last three years, they should be pumped out now.
DRAINFIELD CONDITION (11-14):
Orainfield inspection indicates:
11 Drainfield is dry, no surfacing evident.
12 Some evidence of surfacing, not critical yet.
13 Drainfield is saturated and visibly discharging untreated effluent to the surface. Contact the City inspector
immediately. Repairs must be completed within 90 days.
�Drainfield extent and condition unknown.
L/
LIMITING SITE FACTORS (slope,setbacks,etc.):
POTENTIAL FOR SYSTEM FAILURE (depends on soils,water table,etc.>: ,-/� �
�/f/ <�'�
CO ENTS:� � �
�� �� � � �J,
� �, � (�%'� a 1� C.�'Yl
� � ,)
— �..�
Date of nspection pt c System Inspector
Note: In the event that this inspection report is used to satisfy the requirements for a mortgage or other transfer of
property, be advised that this report does not guarantee or certify that an existing system will continue to function
properly� twt is merely an opinion of the adequacy of the system under current conditions based on the available
information.
This report must be kept on the prE�nises with the system loc�tion and pumping records.
WHITE COPY/Inspectors File YELLOW COPY/Homeowner
� o�
0 0
�, 3�j-�G:y ,� CITY of ORONO
\�� t � � ti MunicipalOffices
!e�s,�a�`-Y�E � � ti
� ��, ,�-:�!. 'fi r'��4 G
.L ; ,;,:;,;;•��' � Street Address: Mailing Address:
`q�fEggOg' 2750 Kelley Parkway P.O. Box 66
Orono, MN 55356 Crystal Bay, MN 55323-0066
Owner: Nq��---� �� r ��S Address:_ y 60 ��q �5����
City Ordinance 199 requires that each existing on-site sewage treatment system in Orono be inspected every hvo years.
The on-site se�vage treatment system at the above address has been inspected and appears to fall into the categories checked below.
SYSTEM CONFORMITY (1-3): 3
1 ��C�DE SZ'STEM" An ISTS which meets all the location,design and construction standards ofthe current Orono l�tunicipal Codz.
2 "C�i4�1-IE�T SZ'SZ'EM�� An ISTS which does not meet all the location,dzsign and construction standards of thz current Qrono Municipal
11 Code but does meet the three foot separation requiremznt,and which is not failing or an irruninent threat to public health or safety.
ONON-COMPLIANT SYSTEM A prohibited ISTS;an ISTS located within a designated 100-year flood plain,any ISTS which may
or may not meet all the location,desig�,or construction standards ofthe current Orono hfunicipal Code and which is failing for any reason;and
any ISTS with lzss than three fezt of unsaturatzd soil or sand between the distribution device and the limiting soil chazacteristics.
TANK COiVDITION(5-10):
Tank inspection indicates: .
� Pumpout not needzd at this tima.
6 Tank must be pumpzd out this year (city codz requires tanks to ba pumped out zvery 3}'zars. Tanl:was last pumped U r�kt�D w r� ).
7 Solids accumulation in tanks is at a critical a critical level. Tanks should bz pumpzd out as soon as possibla.
g S}stem is discharging to thz surface. Tanks must ba pumped out within 48 hours to zliminatz surface dischargz.
9 Inspzclion risers missing-tanks could not be inspectzd. Inspection risers(4"dia.pipz)must bz installed in each tank at neact pumpout. If tanks
ha�•z not baen pumpad out within the last three yzars,they should be pumpzd out now.
1� Inspection pipe is located directly over tank baffle(does not give accurate measurement of solids accumulation). If tanks hava not bzzn pumpzd
out within the last thrze years,they should be pumped out now.
DRAINFIELD CONDITION(11-14): ��-1
1 1 DrainFizld is dry,no surfacing evident.
1� Soma evidence of sucFacing,not critical yet. .
13 Drainfield is saturated and visibly dischazging untreatzd effluent to thz surface. Contact the City Inspector immzdiatzly.Repairs must be
completed within 90 days.
1-� Draintield e�-tent and condition unknown.
CON�IENTS: S�f Sfie � �a�5 �afi r�ee��- 3 �oo-`- SePerat� �r�
�-,Sfia��� _ 2ep\0.c,e� syst-e�-, h� ��-�3� -0 7
�—�6 -b \ �c�
Date oT Inspection Seplic System Inspector
�: In the event that this inspection rzpoR is used to satisfy the requirements for a moRgage or othzr transfer of property,be advised that this report does not guarantee
nify that an existing system will continue to function properly,but is merely an opinion of the adzquacy of the system under current conditions based on the available
iation.
�
� �
� O�
� ;:;� O
=1���.��� CI�'Y of OR011TU
�: �:
���:�._ ... , �
� �� }�s�,��,�. �
'�'+, ��; �";' f� Municipal Offices
� � � Ij��a�� �'�'
.Z �'�;`��"�����i Street Address: Mailing Address:
.i"y�!I
.9kE$�IOg' 2150 Kelley Parkway P.O. Box 66
Orono, MN 55356 Crystal Bay; MN 55323-0066
Owner: IVG���r F a(' n e5 Address:_ 3�� Q��q �5�a n�
Cit�•Ordinance 199 requires that each esisting on-site sewage treatment system in Orono be inspected every rivo years.
The on-site se�vage treatment system at the above address has been inspected and appears to fall into the categories checked below.'
SYSTEM CONF'ORMITY (1-3): 1
Ol ��CODE SYSTEM° An ISTS which meets all the location,design and construction standards of the current Qrono bfunicipal Codz.
2 ��CONIPLIAN'T SYSTEM�� An ISTS which does not meet all the location,design and construclion standards ofthe current Orono Municipal
Code but dozs meet the three foot sepazation requuement,and which is not failing or an imminent threat to public heahh or safety.
3 °NON-CO�fF'LIANT SYSTEM° A prohibited ISTS;an ISTS located within a dzsignated 100-yeaz flood plaiq any ISTS which may
or may not mzet all the location,design,or construction standards of the current Orono Municipal Code and which is failing for any reason;and
any ISTS with less thanthree fzet of unsaturatzd soil or sand between the distribution device and the luniting soil chazactzris[ics.
TANI,'.CONDITION(�-10): 5 -
Tanl�inspection indicates:
OPumpout nut nzeded at this timz.
6 Tank must be pumpzd out this year (city code requires tanks to be pumped out evzry 3 years. Tank w�s last pumped_ ),
7 Solids accumulation in tanks is at a crilical a critical level. Tanks should be pumped out as soon as possible.
S System is discharging to thz surface. Tanks must be pumped out within 48 hours to eliminate surface discharge.
9 Inspection risers missing-tanks could not bz inspected. Inspection risers(4"dia.pipe)must be installed in each tank at nest pumpout If tanks
havz not bezn pumped out within the last three yeacs,they should be pumped out now.
1� Inspection pipz is locatzd directly over tank bagle(does not givz accuratz mzasurzmznt of solids accumulation). Iftanks have not been pumped
out within the last three years,they should be pumped out now. .
DRAINFIELD CO�IDITION(11-1=�): 1 l
1 1 Drainfield is dry,no surfacin�evident
12 Some evidznca of surfacing,not critical ye� . � ,
13 Drainfield is saturated and visibly discharging untreatzd e$luznt to thz surface. Contact the City Inspzctor immediately.Repairs must be
completzd within 90 days.
1=� Drainfield e.Yeent and condition unkno�tin.
COM��NTS: ��5�-�1\\e� '� n Iq9�
S-9 -o� G��
Date of Insoection Seplic System Inspector "
Notz: In the evznt that this inspection repoR is tued to satisfy tjie requuemenfs for a mortgage or other transfer of property,be advised that tfiis report does not guarantze
or certify that an esisting systzm will continue to function properly,but is metely an opinion of tha adequacy of the system under curre�conditions based oa the available
informatioa
SEPTIC SYSTEM INVENTORY
Site Address: 460 Big Island PID: 2311723320002
Owner Name: Nancy L. Farnes
OwnerAddress: 27�0 Foxgage Dr Minnetonka MN 55305
Building Type: residence Installer:
Date of Permit: unknown
System Type: outhouse BRs Designed for: �1
In Musa?: No Shoreland?: �
SEPTIC COMPLIANCE INSPECTION
Report Date:
Compliant?: Expires:
�
Non-Compliant?: Report in Street File?
SPEC� NOTES
�
�
SEPTIC TANKS
Material: Capacity: Tank Filter: �
DRAINFIELD
Treatment Area: Soil Boring: yes DF Ht above Wt: 0.8
WELL DATA
Setbacks-Well-Tanks: � Well-DF: � Report in File?: � Depth: �—
INSPECTION RECORD PUMPOUT RECORD
Date Description Date Gallons
6/11/82 OH noted
10/16/85 noted OH about 20'from pond and 6'above pond
10/31/90 same, no septic found
5/22/96 OH&septic non-conforming,repair by 12/31/98
5/08/01 non-compliant,replace by 12/31/2007
O8/16/07 Non-compliant letter sent
�
�
� �
�_ r �
��� � � �� '���
�
. c� �
o;,-�'�
c�
Qo , � ,�
,�o .
,
�
w��� �°X
�
���. ���
� ��
1 o��� �
,��� DATE TIME
CITY OF ORONO CALLED IN �� .� T
INSPECTION NOTICE scHEou�Eo � /�.�b��` �.-?•���
PERMIT N0. coM LETED
ADDRESS , �� � S
OWNER � CONTR. �-�GZ���/
,� '�.
TELEPHONE N . '"'`'��-- ��' �'
, � ;
--- ,� o . �
� DESCRIPTION - - 2 �.�� �
Ly� 01 FOOTING 11 MECHANICAL RI 18 EXCAV/ ADING/FILLING
� 02 FRAMING 13 MECHANICAL FINAL 19 LAKESHORE/WETLANDS
�
Q 03 INSULATION 24/25 WOOD BURNER/FIREPLACE 34 TREE REMOVAL
Z 04 WALL BD. 12 WATER HOOK-UP 17 SITE INSPECTION
Q 05 FINAL 14 SEWER HOOK-UP 06 PROGRESS
� 07 DEMO-SITE 27 SEPTIC MAINT. 21 COMPLAINT
J 07 DEMO-FINAL 15 SEPTIC INSTALL. 22 FOLLOW-UP
� 09 PLUMBING RI 23 SEPTIC FINAL 35 HARD COVER REMOVAL
J 10 PLUMBING FINAL 36 FOUNDATION/REMOVAL
� OWNER/CONTRACTOR TO MEET YOU:_YES_NO
fl COMMENTS: '
� e—�` � �— �S
a
�
�
O
� - - �
0
�
W � �
� �-, ...
Q
z � �
� ' �
W
�
�
Q�/�ORK SATISFACTORY:PROCEED �=, PROJECT COMPLETE
W �C] CORRECT WORK&PROCEED C ISSUE CERTIFICATE OF OCCUPANCY
W
O C7 CORRECT WORK,CALL FOR REINSPECTION TEMPORARY
0 BEFORECOVERING PERMANENT
❑CORRECTUNSAFECONDITIONWITHIN HOURS. �- pHOTOTAKEN
INSPECTOR WILL REfURN
❑STOP ORDER POSTED.CALL INSPECTOR �- CITATION ISSUED
G INSPECTIONREQUIRED.CALLTOARRANGEACCESS.
Call for the next inspection 24 hours in advance.473-7357
Owner/Contractor
Inspector.
White Copy/lnspector's File Canary CopylSite Notice
� O� CITY OF ORONO
IC SYSTEM APPROVAL
O �a� O -
�c���'' 1�� O� �����
� �:
F \�I �• Y�I
� // V�• ..
� t'r,� �as z i,�- � Municipal O[iices
� � �ti. dl�� �. Post Otike Box 66
'' �`� - CJ Crystal Bay,Mimiesota 5532.�0066
�� �� ���g,�
kES�I.�
- LOCATION: 310 Big zsland
OWNER: Bill YeaQer
GENERAL CONTRACTOR: SEPTIC CONTRACTOR:
SITE EVAI,UATOR: S-P Testing REPORT DATE: August 10, 1998
The City of Orono has Approved your on-site system design as of Augus t 18, 1998
(approved-disapproved) (date)
with the following conunents:
THIS IS NOT A PERMIT. Tl�is is a design approval forcn which must accompany the site plan. A permit must
be issued to a licensed septic contractor prior to installation. A list of currently licensed septie contractors is
enclosed.
NOTICE TO INSTALLERS: Any clianges to the approved plans and specs must have prior.approval of the
Inspector (473-7357). Call for inspections 24 hours in advance.
ALL DRAINFIELD AREAS MUST BE FENCED OFF prior to building site excavation and fencing must remain
in place until final site grading. Approval to pour footings wilt not be granted until tl�e Inspections Department
has verified that primary and alternate sites are adequately protected.
NO VEHICULAR TRAFFIC OF ANY KIND (cars, trucks, earth moving equipment, etc.) is allowed within 20'
of tested drainfield sites either before or after system construction. Compaction of these areas could render them
unusable prohibiting the timely completion and or limiting the long term use of the property.
A site copy will be available at the City Offices for the septic contractor.
CITY OF O O
By
Stephen e , On-site Systems Manager
TGLEI'I iONE—473-7357•FAX-473-0510
S-P TES TING� 1 NC. Steven B. Schirmers & Debra M. Schirmers
951 Katydid Lane NE • St. Michael, MN 5537C (612) 497-3566
FAX (612) 497-5011
State License #394
August 10, 1998
Bill Yaeger
Lot 64 & 65
Morse Island Park, Big Island
Orono, Henn. Co., MN
This On-Site Sewage Treatment System is Designed for a Type 111, two bedroom cabin
(180 gal/day), in accordance with the Minnesota Pollution Control Agency Chapter 7080
and local ordinances. Due to the limited space & no basement below the cabin, a 10'
setback is requested for the tanks from the structure.
The soils on this site are SCS soils mapped - HbC - Hayden loam. The seasonally
saturated soils were located at 60 tq 76 (mottled soil) . The bottom of the treatment
,�
area must be located at least 3' above the seasonally saturated soils. A standard
gravelless trench system may be installed with a distribution box.
The soils at a depth of 24" & 30" have a percolation rate averaging 31.1 mpi.
A 500 gallon pumping chamber will need to be installed to lift the septic effluent to the
treatment area. The power supply and switches must be located outside the manhole
and pumping chamber in a weather proof enclosure. A waming device must be installed
with a light and sound device, this is in case of a pump failure.
The holding tanks will be 1-500 gallon & 1-1000 gallon. Insulate all the tanks to prevent
freezing. The tanks will be plastic so use spray polyurethane which will insulate and add
strength.
1
Aii neighboring wells are located greater than 90' away from the proposed treatment
area.
Keep ali heavy equipment off of the proposed treatment area before and after
construction. The treatment area should be marked off before construction. This
Design is not valid & the system will need to be relocated if failure to protect the areas
proposed for On-Site Sewage Treatment occurs.
With proper installation and maintenance, this system should have no problem in
treating septic effluent effectively.
Nothing other than human waste, laundry, showers, toilets, etc. should be disposed of
into the septic tanks. Garbage disposals are not recommended, due to adding more
solids & fine solids passing through to the system. Excessive amounts of soaps,
cleaning agents & chlorine agents may kill the bacteria needed to treat septic effluent.
Additives are not recommended. Recommend to pump & clean your tanks through the
manhole by a certified pumper every 2 years. Check with your pumper to set up a
schedule.
Co� c� .
Steven B. Schirmers
2
� �. .-�a s-t,r�v �,.:��__
� � � '� � 0 �� t --
- -- - — ---- -- -- - ---- --
--- — —
_-------- — —
202_•�S -- --
� ClTY F' OROiV '
�; s,��c� BUILDi R IE
N ' INSPECTOR
- DAT �
�1� PERMIT NO.�_
���� �p.�,� �PFROV�►�FS SUBMITTED ` /
,_,�r o q ;-soo�.� ❑ .4FPRG`Jc�Udl i H CORRECTIONS AS NOTED `�' �
� ❑ tv^,;T A.FP��VED•--Cp,q�ECT&RESUBMIT o ��
� �-N��B� '�,�v� `H8.3 suk.��, �a�c�mnre;�s sr2 for your ir'ormstion. A!!work shd�be dc ,
����,` �-}- , �iu�l �crr.aHance with atl appticab;e buiidin �'
t–So��.,1 Aeqvirer,�rns inGudin rtems not s �°��Z��ng cc.,c. �
� �/� � KF_EP THtS PLAN SET ON 81TE AT ALLtTIMES f �.
>/ F ��. �j� � �d��.�-t
'1 % � � � �� g�'---- � �.���
� - -- ----------
_- - - ------ --
----__ --_ _
_ .
�-___ __ _
`_ 2i4.�7 ' - � M1r�s.�rc�So�ti/�
1 � 6
1 � � `� Q �ozi�Ep_30" fi, n � ��qqB.Z -- -
� `�'�r�!y�F'� -��� .Z'1�� � �" 9s 3�o K QM°Tt�F o 40^ X
i�'Y ti 1� �"io �' �'� �52.8 9S t. �'
' � ;3� L�v�� � .z 2 �� I
, �, , � � �
� ) --� 4�t i
�` �� T J 4
`l+� . ,li /.���� '/ / �� .F�.�: '-�.r;� -.�:i _ '' U
�v� � � _ � � 3 153_1'�K... ' !� � O j �Q1 ___. __
�� Q��:� .. � �9si.9 i u, , �;�— �
�P < ` 5� �;.. o � =o' j Z ,, �4�QiS!o
� , �. ,..,x.s � W£L�
- , � {��=���-�� --15'-= ---=�1�J 3 ' ,��_�. , � _. IS� i� i
—_-'` 4��.3 � I
� �9z�.9 - qsz.g 94'9,10 �
�►� `z.�J -,��, �
#2 - �.y�riuR� .
� s�v�rR!4-�]"k`v<• , �
_�f /
���
�i . \
9s4.9 9sz,t� 9s3.i 9sz.� `
�\
TB�: jP�kt ' f����� -��ou�t`� i� _-�, PROF'ERTY CF= �1t� Yd��(��R
, 30" D�a.METC� (�.�ai�F T2E� d;,$oil B�ori 95 Tests Scole�
1 o'r�4-a-��. M�tZ�E ISI.�t�1L� ����
�.1E`i,�-i�c�cJ - 948.c� �8erx.t: Mork I��c�Z�\F�c.10. 0��1�� i-�ENN.Ct>.�t�iN
Note= This system is 10 be construcied to meet
� ihe M�nnesoio Pollution Contra Agency S-P TEST/NG/I�VC.,
Chapter 7080 & Local Ordinance ,�� �3 , 5 � -`
Oeyqned By:�--- L
Note : Check all underground utilities Do:e �/11/2� =H.6t2-497-3566
_ _ _ _____ cxistinq grode
_ I I --�--- .
back f ili t��m�n.
�
� � . ,
r�l i -
_�
�I
� i �`'�,.a. �-�u�F�.���� �,Q�
-�- � �-�. �� . �s�,s
SET- BACKS � .�y��
System must be�
����' Tank �2.; from property lines TRENCH X- SECTtON
?�' from wells
; ��= from bldgs.���*��� �� �� (min, of two trenches)
Treatment area �4�from lakes , _� streoms (mmc. lenglh 100�)
Treotment areo aO� from property lines
MN►�No ES ������� �.�from weils
-- . __ ---- � A�ic.�cr«� .��'from bldgs.
- --- --- i; 'r�;;. �- - ��'from trees ote�Power supply and switches must be in a weather SOIL BORWG ELEVATIONS
proof endosure outside �pumping chamber
d0 min. � , ----�-- - -
� i � THAI EL.-�5�,�
/oom�-�1 so��,� `�-''��`-=_�, P!P_e,=�;!' � � � �� ' , � TH.R2 E�.-5 sz„��
Tank -35'- ��I �-QI��:` —
Tank �` Grode - %sbpe TH"3EL.-�:s
arop to Tank �a�-(bv+� �.- gSl•S �� �. TH."4 EL.- �s3.3
- Ai least -��._ of undisturbed
Min. I��to 8� �p�R,P��9 earth bebween irenches TH.`5 EL-
Max.I �to 4 E�EVATION at PROPOSED PUh",PING
„ ,
Chamber
4�io 6��dia.pipe " CHAMBER- °�y�•� (ground elev.)q y�`t
U-�A����-�ss 4��� �1 ��4'�"`�- 1 6-r.�o O�.�.-9't9.p
'oti5��.�-'f,o�..c 'Qo�l..
SYSTEM DESIGN
TYPE�, BEDROOM - Percolation rate 31�1 min.�nch (design yl�-�D min./inch)
�� „��'G��, .
�N�a����____ Treatment area requ�red w/� of rock filier material �� =3'�� sq.ft. of trench bottom area needed =� trench width =1� lin.ft.of trench needed , number of cfrap-bexes_L
(to be delermined by the instoller) �ls�s.-�°"�.
Number of tonks required a , Ist lank/ooJgoL, 2nd tank�c�gal. minimums��_�,��-<�� .
Cleon rock --cu.yds. ( 3/4�� to 2 I/2��dio.,inciudes 2��above pipe ) 1 �� `-�s�.z_=-�__�o'��-�. �tiA v�.�-��x G,v�_ PROPERTY OF=���-�- `��'F i�'�'�
Pumping chamber copacity= 25% of daily sewage flow�of )�60 gal.--�t �.gal.+Reserve.stornge�`�ga�.t Pipe..back droinage�qaL=�._got. cop. �--�'r (�y � c�S r1o��� is�v�.-�-o ���
y-��Yl '��>>'��•,TLC� �� �DU o�G�� 1 =i7• 7'1 . CZ,iL� �SL�9-LO ii'Ql:'i� O M 1--I
( Reserve storage =)�:c�ga I./bec#fee�=--- ��}al. t pipe back dromage� gol./IOOIin.ft.a pipe- length of pipe needed opn 3 S f t = �_� g�l.) ���� . Co . -'
� Pump size '1 z-- ` hp w/mercury float pump controls �SF�����-�;::�:�- �•==`"y-�,s�-�.-1 A���� '-15�sl �_�,-��,�. r��su.
- - S—� TEST/NG ✓NC.
Note� When constructing bed - , this area should be shaped Note= Distance from treatmeM orea to neighboring wells— �,_ �• - �.,
to diveri run-off from entering treatment area. r � "�t_. 1:�;��� �d Designed By�
_;`�_.
Date��/►I /S�, PH. 612-497-3566
INDIVIDUAL SEWAGE TREATMENT SXS7�M WORKSH6ET
�,�W Estimued Sewage Flows in Gallons per day �
A. Estimated I `��> gpd � d �
Numba 17ype! IType Q 7ype� Type �
measured - x 1.5= - gpd or � j � «
SEPTIC TANK VOLUME • � � � �
s. l - /o 0 o gallons z � 3oo ns iso �, ;
. s � aso 30o Zis ora,� i
a 600 37s 156 „�„�
SOILS (Site evaluation data) s � �so aso 29a �
, � ,� � v 6 � 900 525 332 I Typ�1.
C. Depth to restricting layer= �- � �"d � -� feet I � I toso � 600 3�o i uor I
D. Maximum depth of system C-3 ft= I�"'�0 3 0'� feet s ; izoo j a�s aos i m
E. Texture ���'�`�'�`"�Percolation rate 31.t �IPI ' � •`C0�`°"'u �
F. SSF a,�.o sq ft/gpd
a Tanku thsiin lom�
G. Slope /o ,
l,iywJ capa�:m
;lumt+anf �linimumLlyuid liywAopo�rywnA wiU�dic�x�sal&
TRENCH BOTTOM AREA ��1�-lw�`Q�- s"�"""" c'o°°" ����� ��r���:��
H. For trenches with fsinches of rock below the pipe: , ��';w;' ;o o i� ;iu�
A x F= /�o x �.� _�sq ft of bottom azea `'x� !s� =� Nxx,
7.M�K Y .Of7D 10U0 1�Mri
I. For trenches with 12 inches of rock below the pipe:
A x F x 0.8 = x x 0.8= sq ft of bottom area Soil Characceristics and Required Areas
J. For trenches with 18 inches of rock below the pipe: for Se..a c Treacmenc
A x F x 0.66= x x 0.66= sq h of bottom are2 Patolation Rate in sq�ue
K. For trenches with 24 inches of rock below the pipe: Minutes�r�ncn soii T�xc,�e (ac per g�llon
A x F x 0.6= x x 0.6= sq ft of bottom area �M p �er aar
BED BOTTOM AREA Fuc«�hm o.� • couse s�na --
0.1 to S Susd 0.83
L. For seepage beds with 6 or 12 inches of rock below the pipe; o.i co s Fne Suid•• i.6�
1.5 x A x F= 1.5 x x = sq ft of bottom azea 6 0 30 S�oY�o� i.e7
31 to a5 Silc Loam '_.00
ROCK VOLUME IN CU FT ��� ctay t,.oa�r, c�
Slowet than 60••• Cl�v
M. Rock depth below distribution pipe plus 0.5 foot dmes bottom area: • so�i�oo co.rx ror��g�vwu���
M=Rock depth+6 inches x Area(H,I,J,L,K) u:e:v:tems ror rap�dly permub�e:o�ts.
'• Soil tiavmf 5096 or morc of fine sand
( +�.$ft�X = �Et plus vm fine s�nd.
ROCK VOLUME IN CU YDS •••soi�wit1�too hiqn a p�rcennac of c►�y tor
N. Volume in cu Et divided by 27 ����+�^a��►�aro�:w�dud:y:��n.
M+27=cu ds_+27= cu ds
ROCK WEIGH'T Y 6 inches=��- 0%"zReduction*
O. Cubic yards times 1.4=tons 121nches=ZO% Reduction
N x 1.4=tons x 1.4= tons 18 inche�=34°!�"Rednction
24 inche��40°r:Reduction
SYSTEM LENGTH *sizing for�gravelless trench
P. Select trench width= 3,o ft
Q. Divide bottom area by trench width: (H,I,J,or K)+P=
lineal Eeet Geotextile Fabric
dtr...od:.4't:6•t*a,..:dt:��oa�
�+ 3_D =�lineal feet�� „�;oo..;..,.•,��.�4.��Ooi:vir..s i Z"Rock Cover
e:�`�a�,?�i.o �rr�.r.o's�r�,o
Ql. Gravelless Design o�broQ, "=�j(����•
A x F+(3 for 10" pipe,2 for 8"pipe,width of the Chamber) o:.."o;" ,'•.a:°..
a.:).�.,,. .�D,�oo� 4"�Bat't'i�5e
X t = f�f �.o.�•�.w o�`��.o•
t�e:�.��. .�:e.1D)
divcv..., :C�'�'d�'
o.w...00�.,,
..00ayaY.... 'io ••'(::.�-�:. .v
:d o,G..o..a o
L.�►V1IN AREA �4,•�.:..;,00e>,�..a.•...a a. oc
R Select trench spacing center to center=�feet (j�oabo!d(aabd`��-oa-.�-a
� o:a�,�•.;e.:p�Y4.:.r..�P QO.rw�PO�
`a�.�t. ,*•r.�.'.:wr.wv:�'. (pQ!�.a'�
r G',�v0`o°`0•o°`a"6.�':.�.�`.:
S. Muld 1 trench� acin b lineal feet R x Q=s ft of lawn area .p� � e„
P Y P 8 Y q o,a�oaw :
t v..e.�.i�.: ..e:r.. � ���G.aol �1����i�
• �.Z x r =,���$C�1� Gy(jt:� o'wo0�!�.v0 p��(Q,
i��..e�� Of�i1�1w•��DOSIw. � .e�i�� �,� � .� �
p�� "(.,�.�o OQ�O OQvr.�' v:a j 0 ��/ � "' �/ �11
� o'�).:i�w.� 04w�Ppi e�e
b�jtQ; �.o;t.o;.r.r.r.v.�.�
LAYOIJT(Use other side) o„ ,p,�Q,;P�o„�.° ,,4 ,,
�.r.,•�.v.wo,ao•,.r.r!'(.�.. .wo, � O 1 Y�.
a: :a - b
t r
1.Select an appropriate scale;one square= feet. • ,,+,o o��er.4:r?:.�o,:•.. +.�: U�,4,,-��,�fS�
Q��.G Qi.'O•r:r.�.N,a�Op. �i�l:
2 Show ertinent ro e boundaries ri ht-of-wa easements. �•�4;. "¢;o��aa`� '.'•, �14�
P p P m' � g Y� Q'toabc: i'.o.-. �.p oa..
3.Show location of house,garage,dziveway,and all other
improvements, exiscing or proposed 18-36"Width
4.Show location and layout of sewage treatment system.
5.Show location of water supply well. ,'� ,
6. Dimension all set backs and separarion distances.
PUMP SELECTION PROCEDURE
A. Dete:mine pump capacity:
Gravity Distribution
1, Ivfinimum suggested is 20 m
2. Maximum suggested �� Perforatlon Disehuge�in GPM
Head Perforadon diameter
Pressure Distibution feec tncha
3. a. Select number of perforated laterals 7 32 � a
b. Select perforation spacing= fee� �.oa os6' 0.74
c. Subtract 2 R. from the rock layer length. 1S o.� 0.90
20b 0.80 1.04
,wa��,�,�,�e,-2 ft.= feet. '
d. Determine the number oE spaces between perforations. a Use�.o toot si„gle homes.
Length perf.spacing= it•+
ft,= spaces b Use 20 feet for anything else.
e, spaces+1 = perforations/lateral
f. Multiply perforations per lateral by number of laterals to
get total number of perforations. �. x ��, � = perforations.
S, yas X��- gpm.
SELECTED PUMP CAPACTI'Y .�,�SPm N'�AJL
B.Determine head requiremenb: ,
1, Flevadon difference between pump and point of di.schazge.
�feet
s�ti.,�.,,����,
2, If pumping to a pressure dis�ibution system,five feet for pressure a,� a.
required at manifold if gravity system,zera �L
feet T°"i aa i"'�n
3, Friction loss
a. Enter friction loss table with gpm and pipe diameter. ,,,�. �w.d«+an.�
Read friction loss in feet per 100 feet from table(F-14). �'�' ....._, ., _
F.L. _ -r,:� �, ft./100 h of pipe _.._....._ ..........--••---•..................ry�i'-
b. Determine total pipe length from pump to discharge
poin� Estimate by adding 25 percent to pipe length for fitting
loss,or use a fitting loss chart(F-15 feet).
Equivalent pipe length-1.25 times pipe length=
;�.," x 1.25=�feet Friction Loss in Plastic Pipe
c. Calculate total friction loss by muldplying Nominal
friction loss in h/100 ft by equivalent pipe length pipe dia.
Total friction loss= •��;._X � �I +100=�_feet �o�,g�te
4. Total head required is the sum of elevation difference, �� 1.5" 2" 3"
special head requirements,and total friction loss.
20 2.47 0.73 0.11
a + - +�_ 25 3.73 i.11 0.16
• (1) (2) (3c) 30 5.23 1.55 0.23
35 6.96 206 0.30
40 8.91 264 0.39
TOTAL HEAD �� feet 45 11.07 3.28� 0.48
-50 13.96 3.99 0.58
55 4.76 0.70
C. Pump selection 60 5.60 0.82
65 6.48 0.95
70 7.44 1.09
1. A pump must be selected to deliver at least
�tS gpm (Step A) with at least �feet of total hea�i (Step B).
M�1,>L�
S'1� TESTING� �NC. Steven B. Schirmers & Debra M. Schirmers
951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566
FAX • (612) 497-5011
State License#394
�OGS OF SOIL BORINGS
Bill Yaeger
Lot 64 & 65
Morse Island Park, Big Island
Orono, Henn. Co., MN
Borings completed on 8-4-98, with a hand bucket auger.
BORING NUMBER 1- Elev.952.7 - NO MOTTLED SOIL PRESENT IN THE BORING.
0 - 8" Topsoil dark brown loam 10YR 3/2
8" - 12" Gray brown loam 10YR 4/2
12" - 26" Brown loam 10YR 5/6
26" - 46" Brown loamy medium sand 10YR 6/4
46" - 70" Brown medium sand 10YR 6/4
70" - 78" Brown sandy loam 10YR 6/4
BORING NUMBER 2- Elev.953.9 - MOTTLED SOIL AT 76" - no standing water present
in the boring.
0 - 10" Topsoil dark brown loam 10YR 3/2
10" - 40" Brown clay loam 10YR 5/6
40" - 66" Brown loam 10YR 6/6
66" - 76" Brown medium sand 10YR 6/4
76" - 96" Rusty brown medium sand 10YR 6/4 - mottles 6/8
BORING NUMBER 3- Elev.953.5 - MOTTLED SOIL AT 60" - no standing water present
in the boring.
0 - 10" Topsoil dark brown loam 10YR 3/2
10" - 30" Brown clay loam 10YR 5/6
30" - 60" Brown loam 10YR 6/6
60" - 66" Rusty brown loam 10YR 6/4 - mottles 6/8
66" - 74" Rusty brown sandy loam 10YR 6/3- mottles 7/1,6/8
74" - 84" Rusty brown loamy medium sand 10YR 6/3 - mottles 7/1,6/8
Soil borings cont'd.
anRiNr ni��MBER 4- Elev.953.3 - NO MOTTLED SOiL PRESENT IN THE BORING
0 - 12" Topsoil dark brown loam 10YR 3/2
12" - 16" Gray brown loam 10YR 4/2
16" - 40" Brown clay loam 10YR 5/6
40" - 44" Brown sandy loam 10YR 5/6
44" - 60" Brown loamy medium sand 10YR 6/4
60" - 72" Brown medium sand 10YR 6/4
2
CERTIFICATION�N0.627
STATE I.ICENSE N0.394
PERCOLATION TEST DATA SHEET
Percolation test readings made by S-P Testin�,Inc. on 8-5-98 starting at 10:59am.
Test hole location Yae�er� L.ot 64 & 6�Morse Island Park,.Jg Igland. Orono.
Test hole number1, Date test hole was prepared�-4-98.
Depth of hole bottom�4.inches. Diameter of hole�inches.
SOIL DATA FROM TEST HOLE
DEPTH,INCHES SOIL TEXTURE
0 - 8" Topsoil dark brown loam
S" - 12" Gray brown loam
12" - 24" Brown loam _ _
Method of scratching sidewall is ktlifg. Depth of gravel in bottom of hole is 2 inches. Date and hour of initial
water filling 8-4-98, 11:30am. Depth of initial water filling is 12 inches above the hole bottom.
Method used to maintain at least 12 inches of water depth in hole for at least 4 hours is automatic sinhon.
Maximum water depth above hole bottom during test is�inches.
I Measurement, Drop in water level, Percolation rate,
Time Time interval min inches inches minutes e�inch Remarks
10:52 refi I I 6
10:59 11:29 6 2-3/16 13.7 30 min
11:34 12:04 6 2-1/8 14.1 30 min
12:06 12:36 6 2-1/8 14.2 30 min
Percolation rate=14,9�minutes per inch.
CERTIFICATION N0.627
STA.TE LICENSE N0.394
PERCOLATIOI�1 TEST DATA SHEET
Percolation test readings made by S-P TestinQ.Inc. on 8-5-98 starting at 11:OOann.
Test hole location Bill Yaeg�r,� ot 64 & 65F1VIorse Island Par Big .land.Orono.
Test hole number�. Date test hole was prepared 8-498.
Depth of hole bottom�Q inches. Diameter of hole�.inches.
50 .DATA FROM TEST HOLE
DEPTH,INCHES SOIL TEXTURE
0 - 10" Topsoil dark brown loam
10" - 30" Brown clay loam
Method of scratching sidewall is k�if�. Depth of gravel in bottom of hole is�. Date and hour of initial
water filling 8-4-98 11:30am. Depth of initial water filling is 12 inches above the hole bottom.
Method used to maintain at least 12 inches of water depth in hole for at least 4 hours is automatic siphon.
Maximum water depth above hole bottom during test is�inches.
Measurement, Drop in water level, Percolation rate,
Time Time interval min inches inches minutes er inch Remarks
10:52 ref i I I 6 _ ___
11:00 11:30 6 1/2 60 ___ 30 min _
11:33 12:03 6 _1/2_____ ______ 60___ ____ _ ___30 min___
12:07 12:37 6 1/2 60 30 min
Percolation rate=¢4LQ�ninutes per inch.
CERTIFICATION N0.627
STATE I,IC'ENSE N0.394
PERCOLATION TEST DATA SHEET
Percolation test readings made by S-P Testin�,Inc. on 8-5-9g starting at 11:Olam.
"I'est hole location Ya�g�r� ot 64 & 65 Morse Qland Park, Big Island, Orono.
Test hole number�. Date test hole was prepared 8-498.
Depth of hole bottom�4.inches. Diameter of hole�inches.
SOIL DATA FROM TEST HOL.E
DEPTH,INCHES SOIL TEXTURE
0 - 10" To�soil dark brown loam _
10" - 24" Brown clay loam
Method of scratching sidewall is ls�ifg. Depth of gravel in bottom of hole is 2 inches. Date and hour of initial
water filling &4-98. 11:30am. Depth of initial water filling is 12 inches above the hole bottom.
Method used to maintain at least 12 inches of water depth in hole for at least 4 hours is automatic sinhon.
Maximum water depth above hole bottom during test is�t inches.
Measurement, Drop in water level, Percolation rate,
Time Time interval min inches inches minutes r inch Remarks
Water remainin in test hole
11:01 11:31 6 1-9/16 19.2 30 min
11:32 12:02 6 1-9/16 19.2 30 min
12:08 12:38 6 1-9/16 192 30 min
Percolation rate=14�Xninutes per inch.
. ' NOTES
. , � OUTLET TO �. ALL PIPES SF10VL0 BE A�T LEAST 4-INGH
TRENC�1 �IAMETER.
INLE'T FROM Z, ELEVATION UF INLET AND SUPPLY LINE TO
SEPTIC TANK NEXT DROP 90X MAY DE AD.JUSTEO UP OR
OR PRE�/�GUS ___ DUWN fOR OF_S�pF:O ��F�LUE:�iI IF.VEL IN
Di�U1' uUX •SVf'PLY LINE 7RENCFI.
'f0 NEXT
DROP DOX 3. SUGGESTEO TRENCH LIOUID LEVELS� (Al 2 INCHES
�. ABOVE TOP OF OUTLET PIPE IF PERMEAOI.E
OFNOUTLETFP PECIF HAYSOR�STRAW AND �r
BVILDING PAPER COVERS ROCK.
'' 4, INVERT OF INLE7 MUST BE AT L�AST ONE INCH
FIIGIIER THAN INVERT OF SUPPLY PIPE TO
NEXT DROP BOX.
-� -OVTI.ET TO TRENGHES MAY OUTI.ET (lNE SIOE OA 00'T�1
TftEN<:H 5�
�,iors o� nrroP F3ox.
y-Y.'_".L __ ,�__..a.- �-----••i f �- �-..._���.
Y�
T i SUPF�Y i � -INIEI'
' f ' � i�.
__�, �N� � i � �7._ LINE i � � �� - SUFi��Y LINE
i
� � __...._��L_ � � i � i /
2 I �� � 1 -
��•. T � _.._ -,-; ;,
, � , „
i -'1'- --OUTLETS-�._. _'�� �~.
� � TO TkENCl1 � � •OUTLET TO
`-----•-- --' �----•--� TRENCH
DROP BOX '
GRAVELLESS TRENCH CONSTRUCTION DETAILS
1 1/2" Inspec!i��n
� Inlet Pipe to Next � 1/2 Male Well
Drop Box Adapter
12" Soli Backfill
:� �
Corrugated Tubing Covered
with Geotextile F�bri
Drop E3ox
Trench Length = up to 100 Feet
Ovortill to A11ow NpTES: 1. Boltom ol trench must be level. Top
tor Settling ol tubing must be level.
Soil �2• ol Soil 2. Scarily tronch bottom �nd sidewalls
� Backfill � g8cklill et les�sl 12 incl�es abore trench bottom
24" ; �
, , to expose natural soil.
' ' 12"
'�li�__ _ '_� 3. For proprictory products consutt
Noles Located manufacturers perlormance crileria.
24 at 4 and
8 O'Clock
J Figure D-33
F-$
.r.�.�� .L,.
`�
REow000 cEoq� oR
WATER TIGHT 6� LOCKABLE EI.ECTRIC BOX—� TREATED�POST (4 x 4 min) '
PLUGS OR ELECTRIC CONNECTIONS— �-INSIDEL BOX IC CONNECTIONS Ml1DE
2' PVC CONDUIT SCHEDULE 80 1" LOOP OF POWER CORD FOR
MANHOLE COVER CHAINED � LOCKEO 6�SP-� SETTLEMENT
SEALED MIWHOLE RINGS � .FINAL GRADE
,� AT IEAST 12� �
BELOW GRAOE
UN I ON
WIRE FROM POWER SUPPLY
- ' PIPE IS LAID ON A UNIFORM SIOPE FROM
� /±� . fOR PROPERNDRAINBACKIL 7REATMENT MEA
SEAIED TANK COVER �--IF PIPE AT TANK MUST BE LOWER THAN
UNION. TO GET EIEVATION FOR DRAINBACK,
PLASTIC ROPE OR CHAIN A V4 INCH WEEP HOLE MUST DE USEO
WITH ANCHOR--\ — WEEP HOLE
ALEL C RICAL�NRCUIPT�RA7E
NOTES� ELECTRICAL WIRE FROM POWER SUPPLY
� MUST NOT RUN OVER ANY TANKS BUT
, S�RJ_l,�V�.9_ . 1y� - — MUST BE LAID BESIDE OTIIER TANKS
3� `� ANO NUST BE PI.�CED IN CONDUIT
ALONG POST _
SH�T_O�F�,EVE�.Q_ — -- — — FLOATSI MUST BE RUN�HROUGH AND
CONDUIT. WIRES CANNOT HAVE GROUND
PUMP CONTROL FLOl1T CONTACT.
�0� :
Figure F•8
.
METAL
COVER
�.. ..�•, Y; _�. �; � f.. y
; '� 19.� i --� ;, �.v:,. ,�..
i � i •�_.. t. �
� , , i
� 4 I
� ' � !,i ly':t� ����' i
CONCRETE ' �'
MANHOLE ��4
RING
METHODS OF SECURING MANHOLE COVER TO PREVENT
UNAUTHORIZED ENTRY
Figurc C-14
. , � --- ;t �.
� ` VERTICAL SIDEI�ALL SEPTIC T�1K -�
/-FINISHED GRADE
� - AT LEAST 6�TO 12" SOIL AT LEAST
4" OIA. COVER 4" DIA.-�.,
� AT LEAST I" ' � AT LEAST ►"
�����__ ..,. . .
, �
. .
. , � A
_�. � l A DIMENSIONS FOR TANKS WITH ,VERTICAL SIDES
— WIDTH. W 24' MINIMUM ._.
.IENGTH, L 2 TO 3 TIMES THE .WIDTN _
B D�AMETER 60' MINIMUM _
� 1 DEPTH. 0 30' MINIMUM; 78=MAXIMUM C �
--1- A 0.2 0
r - �AT LEAST g � ��� 6" MiNIMUM�_0.2 0 MAXIMUM — 6" -
3" � �� �o.a o ^
_. . __ - �-AT LEAST 4 FEET-- -' -�
r.U1E5: �
�. SNii1N1Y1fCSnilfnSt�u�l'�iESWOu�uF.lF.tt �• �I �W����M�X��'�1'IKSU(YACES.
?. 1 i i&fx 5�W l UC 0�iE 0����E►�N��C s.20'l F�S t
(11ufJ[NOHNNIOCnif(IYnIi1N{fCEI0fKl7Nuc 6. �1`AMIRJNUS'IM�JCEOEIWEEN�Of►��f`t`EANU
w/.�13. NEN1ESi 1"O��I ON 6KflE 9W.1 l!E►q 1.E5!li W/t wG�E5
�. �wers+�ECliOnrrFOr�i�En3t�wy�CSOv,�.r;tEn
p���q�E51w.lRElOC�1E0fNEf1DO1r1114�+ET O(1NObd�kTIWIt2NCIlES,
NJn0U1lLIDCVI(YS.INECUlIfJll►�CO�III;rIV'lCl/�ll 6. A��p���S10�Cli`0]y()�.lµK^r01M[flfKN1A140.1'A
r�rCs s+v�il OC t�iC RN�f�S 1 i IE UN�L'n 1 u+E fff t HE
ONiIFO�KNWC30��SNu1N1YICfS Al1YfU)W!i'EC��C1�
� I'1'C K151 PE IOC�IlU E!Iwff.N 71�F.IAf I M41f�111 C1
pN flES.
� PENCII.
� MARKS .� �
6 ~ " "
� 20� ri •
MANH E ; '��`"• y �
� �.• —
�i ;. • =:
�
IN�ET " SCUM ;� i; OuTLET
•� - � .+�.r. .� r., y
�, '�vr:•�OtlTLET I.EVEL .�*.r.,I� •'�''
/. �.. ������ � � r�I �
._ SCUM CLEAR SPACE = �I-�, ; CLEAN OUT TANFC Wb�IEN�
, � —•. —. — _.. �••e• — —, �' 'k1 IS 3' OR I..ESS OR
� — -- — — �'� p '8'IS 12�OR LESS
;� - - = _- - 1
� ,'::� '';�,; • • . . � . •,' . . '. • •`'`};: BLACK COIAR
� `^ ' DISTINGUISHES SLUDGE
x' ;'{i�'��i;:;.;•�;�.' SLuOGE. '! LAYEFt FROM UQUIO
� '�;;.��'••!;:!;• .. . �� y���
�. ;�. .. .�a;,>
•!•�� :.s�:�• :a•.
MEASURE SCUM AND SLUDGE ACCUMULATIONS
i N THE SEPTIC TANK