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CITY OF ORONO - VARIANCE APPLICATION
Initial Appi.ication Fee $150.00
($50.00 per each additional vari
Renewal Variance Fee $75.00
(no change from original applica n) A° f •��.;:� �, +
7
After -the -Fact Fees (Double application feRe�
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PROPERT! LOCATION
Site Address B 1(o SSA6
Property Identification Number (P.I.D.) -1*7 4e)
Please check one - Property abstract or torrens?
Attach legal description to application if not included on
required survey. ,T
--------- ---
APPLICAwT Phone (home) -�o l -' Z� % 3
Name p W JZI Ja.J � ST7�ILM it s Phone (work) 4 % / - gs(A
Address: 2_04>0 WNTJ!,4fr241& City: L Zip:
-----MEER ---- ---------- ----- ----------- ----------- -------
-- --- o------------
O(if different than applicant) Phone (home) 4%�
Name FRi fb A uT 1f-AU Phone ?(work )
Address: 3 S- S_Lt.a..z City: �. Zip:�-
Date Property Acquired % �"7 (month/year)
I (do) r( 4Q not)) also own the adjacent parcels of land.
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PRESElt USE OF PROPERTY
Present Zoning Distiict R S
Present Use of Propel cy JAC AWE Residential
Other (specify)
------------------------------------- ------------------------------------
DESCRIPTION OF REQUEST Estimated Construction Cost $
Describe request in detail:
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VARIANCES RRQOIRSD
Lot Area Lot Width Hardcover
Setback Variances ( Front 'Side Rear)
HARDSHIP
Describe undue hardship or practical difficulty resulting from strict
enforcement of zoning regulations: 5o,,_ s KBaE MewvO
SfPT�I S�K�'tn,� w.440_r4 iN TtIQM h r. .0 ratf�
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DESCRIPTION OF UNUSUAL PROPERTY CONDITIONS
Describe unusual property conditions preventing compliance with Zoning
Code Requirements: Sr►n A2_L LOT- S4 Z
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REQUIRED SUBMITTA
1. Completed Application Form
2. Certi"ted Property ers List of owners within 3:50' (you must obtain
this list from Henn a County Department of Finance A-603 Govt Center
348-3271).
3. Stamped, legal sized envelopes (t10) pre -addressed to each of the
names on the above list with no return address (use address labels
obtained with property owners list).
4. Certificate of survey including hardcover calculations as required.
5. Topographic survey (existing at proposed elevations) if any changes
in existing grade are proposed.
6. Plat Map (obtained with property owners list)
7. As an addendum to this application, please attach a ;separate list of
any other persons you wish notified of this application.
8. Additional items as may be requested by City staff.
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The Applicant and Property Owner must sign this application. Please
remember that your variance application is not complete if the above
information has not been included.
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Certif;cation by Zoning Department that Variance Application is complete.
Zoning Official's Signature __ Date
--- -----------------------------------------------------------------------
APPLICAMIS SIGNATURE
The applicant hereby agrees to provide all inforu-ition required or
requested by the Zoning Administrator, agrees to pay all fees and/or
unusual expenses incurred in review of this application, and certifies that
the information suppl is true correct to the best of his/her
knowledge.
Applicant's Signature Date
ONNERS SIGNATURE
The owner hereby ackowledges and agrees to this application and further
authorizes reasonable entry onto the property by City staff, consultants,
agents, Commission mem rs, and Councij members for purposes of investiga-
tion and verificat n f t request
Owner's Signature c ��.k' �1�� Date `
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Applicant must have all submitta into the City offices 25 days before the
Planning Commission Meeting. Planning Commission Meetings are held on the
third Monday of each month. Applicants must be present at all scheduled
review meetings of the Planning Commission and Council. Jf an applicant is
unable to attend a scheduled meeting, please make Arrangements to have an
authorized agent attend in your place and to advise the Building i Zoning
Office of this change prior to the meeting.
J
DATA PRIVACY ADVISORY
In accordance with M.S. 15.165, "Rights of subjects of data",
we would like to inform you that your request for a permit or
license from the City of Orono or any of its departments may
require ywu to furnish certain private or confidential inform-
ation.
You are n(._ified that:
1. The information you furnish will be used to determine
your qualification for the permit or license requested.
2. You may refuse to supply data, but refusal may require
that the City deny the permit or license.
3. The information may be shared with oth,_r local, state
or federal agencies to the extent necessary to process
the permit or license.
4. If your requested permit or license reqires council
action to approve, some information may become public.
You have certian rights •ender M.S. 15.165 to r iew
private data on yoursel_
6. Your full name, and date of birth are required to process
this application or permit.
T' Jo .4 A)
rat Middle ,/� Las
a 7,0n tJ�4TeWF 2 �f—
Date of birth(does not apply to building/general permits)
Phone
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RUN DATE 01/27/68
EATCH 001
38 23-117-23 23 0003
PROP ADDR
C:AIER NAME C A A MADSON
TAXPAYER CARLISLE A ARLEEN MADSON
NAME-'ADDR 209 SHADY OAK RD
HOPKINS MN 55343
38 23-117-23 23 0033
PROP ADDR
OWtIER NAME E HALES A A SAAR
TAXPAYER MRS FRED HALES
rUME/ADOR 3711 ARBOR LA 5
MINNETONKA KN 55343
38 23-117-23 32 0002
PROP ADOP
OWNER NAME GER.TRUDE V NEL50N
TAXPAYER MPS H R NELSON
NAME/ADDR 3115 CEDAR AVE SO APT 3
MPLS MH 55407
38 23-117-23 3Z C015
PROP ADDR
( OWNER NAME SAMUEL A MC CLOUD
TAXPAYER SAMUEL A MC CLCUD
NAME/ADDR 533 PARKDALE PLAZA
1660 5 HWY 100
MPLS Mll 55416
38 23-117-23 32 0020
( PROP ADOR
CWNER NAME C A A MADSON
TAXPAYER CARLISL° A ARLEEN MADSON
NAME/ADUR 209 SHADY OAK RD
HOPKINS MItiN 553,•3
38 23-1.7-23 32 0028
PROP ADDR
^:.!+ER NAME V SNIDER ETAL
Tt.:.PAfER ROY E AHERN
{ NAt1E/ADDR 1500 INDUSTRIAL PC
MIR4ETONIA MN 51,345
HEt*IEPIN COUNTY PROPERTY INFORMATION SYSTEM
REPORT NO.
PI435401
PPGPERTY OWNERS LIST
'AGE
1
38 23-117-23 23 0004
38 23-117-23 23 0027
C i A MADSON
K W SAARI ETAL
CARLISLE A -P LEEN MADSON
KENNETH W SAARI
209 SHADY OAK RD
27v3 VAN1R COURT tad
HOPKINS to 55343
ROC+ESTER KN 55931
38 23-117-23 23 0034
•8 23-117-23 32 000!
J A i I ISAAMAN
CAR.OLINE C ECM
JACK A ISAAMAN
MRS H R NELC^N
5308 W HIGHWO00 OR
3115 CECAR AVE SO APT 3
►�' ,�
EDINA MN 55436
MPLS MN 55407
-
38 23-117-23 32 0013
38 23 117-23 32 0014
SAMUEL A MC CLOUD
SAMUEL A MC CLOUD
SAMUEL A MC CLCUD
SAMUEL A MC CLOUD
533 PAPVDALE PLAZA
533 PARKDALE PLAZA
1660 5 HWY 100
1660 S HWY 100
MPLS t74 55416
MPLS t*I 55416
38 23-117-23 32 0016
38 23-117-23 32 0019
T i P HAt2iA
EUGENE A NEL`-ON
TED R HANNA
EUGENE A NELSON
14115 KNOLLWAY OR S
2115 E 36 1/2 5T
MINNETONKA MN 55343
MPLS MN 55407
38 23-117-23 32 00,23
D W PRATT A C A PRATT
FRED A BRUNTJEN
430 OAK GROVE SUITE 203
MPLS MN 55403
38 23-117-23 32 0029
ROY E AHERN
ROY E AHERN
1500 INDUSTRIAL RD
M11-94ETONKA MN 55345
38 23-117 32 0027
A R STROUTH i T STROUTH
A R A T STROUTH
6083 MOODY LA
FRIDLEY MN 55432
38 23-117-23 32 0044
VIVIAN J NELSON ETAL
VIVIAN J NELSON
6009 W 34TH ST
MPLS MN 55416
PUN DATE 01/27/88
BATCH 001
38 23-117-23 32 0046
PROP ADOR
W":ER NAME J t J CAMPE III
TA-,PA+ER ROY E AHERN
tiuSE/ADDR 1500 INDUSTRIAL RD
MINtlTONKA MN 55345
38 23-117-23 32 0049
PRCP ADOR
OWNER !.••!tE N TPAFF A J L TPAFF
T4,'PAYER ROY E AHERN
14AME/ADDP 1500 IttaUSTRIAL RD
MItClETOtJ,A MN 55345
38 Z^3-117-23 32 0364
PPOP AUDP
W,'ER NAME FRED W HALES ET AL
TA%PAYER FRED W HALES
NAt!E, AJDR 3711 S ARSCR LA
MItk1ETONF:A tkl 55343
HENNEPIN COUNTY PROPERTY INFORMATION SYSTEM
PROPERTY OWNERS LIST
38 23-117-23 32 0047
ROY E AHERN
ROY E AHERN
15001 INDUSTRIAL RD
MINIETOtk(A MN 55345
38 23-117-23 32 0059
LEOtlAPO R SHARE
LEONARD R SHAPE
9117 WEST *PELA?iD LA
MPLS tiN 55v26
TOTAL BATCH 001 00O25
REPORT NO. PI435401
PAGE 2
38 23-117-23 32 0048
RDCOX 9BECOX
ROY E AHERN
1500 INDUSTRIAL RD
MItk4ETO!0<A MN 55345
38 23-117-23 32 0061
JOHN S DEAN
JOHN S DEAN
837 N 63RD ST
WAUWATOSA WI 53213
38 23-117-23 32 0071
ROBERT M MCAULiFFE ET AL
W L & P A THORKELSON
4351 DAWNVIEW TEF
GOLDEN ALLEY MN 55422
I CERTIFY THAT THE FACTS REPRESENTED ARE AN ACCURATE AND TRUE
REPRESENTATION nF INFORMATION AS IT APPEARS THIS DAT"" ON THE RELJRDS
OF THE HENNEPIN COUNTY DEPAF'MENT OF FROPEQTY TAXAT- k1, 40 THE BEST
OF VY K14OWLEDGE AND BELIEF, % v
DATE/"BY
CITY of ORONO
NOTICE
The Planning Commfseton was hoid public
heartnge in the Caurnca C ernbers of 127E Ow"It
Brown Road on Tueedaq. February 16. 1YM.
on the matter of revewwV the foaowelg WM use
appacahons
1 1242 Kathy Duncanaon of 800 North
Brown Road Seeks a cnndktWW Los perm to
allow the Installation of a non -rental, cratakar
apertmenl within the existing reeldenoe
2 1243 Jana BlargMer of 4U5 Wayrsts
eoWar.►d seeks a oonditfonat use pennt to sit.
low the Yetaeatlon of a non4wir. oaratake
aoartmant within the exfetlng rooklohoe
3 1244 Dab C Palm of 1710 9hadywood
Road seeks approval of varla nCes to now as.
lifting hardcover lmprovemants ouch as a
dstacred garage an portions of a cenent drive.
wsy Vitally Scheduled for removal as a can
drtfw J approval of a prerbue vahlrr0e
application
4 1245 Hennepin Co-ity Dpa,tnem of
Trreportstion/Ctly of Orono esak a oonAKeh•
at we permit and varnrnces to the requle sat -
back from the lake W-4 a 6"i9nr Iwo" fear
futfng and exprndrp the road a— road bed of
Road 15 wRW the Naverrill Mee
a 47 Raberl Posuxfn us. ownll of Record
L 40 on eig WNW. eeeke a olds aetbaok v'
varlance rid a varlence to the repifUed setback
for a propose wee that arouw serve a nwv
samona dweafng
All personal ww" to be herd we appow of
the tune The nNW111A g starts at 7.00 p.m. WYN-
ten comments are sobcaed Pine aro ay.lk"
for review in the CRy offices. try appoi rlmMf.
ey Pww trig Oanftihsion
Jesruie A bfaeusM.
8haldkhp and zoning Adnwwnafor
( Published in The Lalw and Plower on Feb
19581
Affidavit of Publication
State of Minnesota, County of Hennepin
Bill Holm, being duly sworn, on oath says that he is
an authorized agent and employee of the publisher
of the newspaper known as THE LAKER, Mound, Min-
nesota, and has full knowledge of the facts which are
stated below
A.) The newspaper has complied with all the require-
ments constituting qualifications as a qualified
newspaper, as provided by Minnesota Statute
331A 02. 331A.07, and other applicable laws, as
amended
B.) The printed
which is attached was cut from the columns of said
newspaper, and was printed and published once each
week for successive weeks.
- .�--- - It was first published Monday. (�
---/r f the .._ day of
and was thereafter printed and published every
FEES - 519E8 ; ! Monday, to and including Monday.
- ! the day of 19
� I
RX 6
Authorized Agent
Subscribed and swom to me on this
t_ day of 1`tl • _—, 19..
p�
XL --/ _
eye_._.
- I Notary Public
Rafe infor latJon
(1 ! Lowest classified rate pad by commercial users for c cmpara.
ble space $ 7 84 r)w inch
(2) Maximum rate allowed by law 10f aovs ?hatter 64 64 per inch
131 Rate aeluafly charged fa above matter $4 54 per eheh
Each additional auocessne week S3 03 per wnch
CCTV 4►f 1IKONO
Fred A. Bruntjen
5135 Morton Street
Edina, MN 55436
r
ice•
`
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/ y7
D
CITY OF ORONO
NOTICE
The Planning Commission will hold public hearings in the Council Chambers
at 1275 South Brown Road on Tuesday, February 16, 1988, on the matter of
reviewing the following land use applications:
1. #1242 Kathy Duncanson of 690 North Brown Road seeks a conditional
use permit to allow the installation of a non -rental, caretaker
apartment within the existing residence.
2. R1243 Jane Slaughter of 4545 Wayzata Boulevard seeks a
conditional use permit to allow the installation of a non -rental,
caretaker apartment within the existing residence.
3. #1244 Dale C. Palm of 1710 Shadywood Road seeks approval of
variances to allow existing hardcover improvements such as a detached
garage and portions of a cement driveway originally schedules' for
removal as n condition of approval of a previous variance application.
i1245 Hennepin County Department of Transportation/City of Orono
seek -a conditional use permit and variances to the required setback
from the lake and a designated wetland for filling and expanding the
road and road bed of County Road 15 within the Navarre Area.
�5. #1247 Robert Posthumus, own r of Record Lot No. 40 on Big Island,
bet-ks a -aide setback variance and a variance to the required setback
for a proposed well that would serve a new seasonal dwelling.
All persons wishing to be heard will appear at this time. The meeting
starts at 7:00 P.M. Written comments are solicited. Plans are available
for review in the City offices, by appointment.
By: Planning Commission
Je,Anne A. Mabusth, Building b Zoning Administrator
To be published the week of February 1, 1988.
LAKESHORE
SETBACK
ZONE
0-75'
75-250'
250-500'
500-1000'
Directions:
ORONO HARDCOVER CALCULATION WORKSHEET
A. Existing B. Existinq
lot area hardcover
in zone in zone
C. Existing
hardcover
percentage
( (B ;A) x 1001
.Zf sf sf
D. Proposed
hardcover
in zone
y sf
E. Proposed
har 'cover
percentage
((D-!A) x 1001
F. Allowed
hardcover
percentage
0 /7
-- io 2s f C? s f � y� 1 +QO s f i\ % 25
sf sf '/o Sf 'yn 30 �'-
sf
sf
n/ 0
sf
"X� 35
A. Existinq Lot Area in Zone - includes the total square footage of dry buildable land
within the specified zone.
B. Existing Hardcover in Zone - incli-?"o -r.a square footage of existing roofs, decks, sidewalks,
driveways (aravel or paved) and other rain -impervious surfaces within the specified zone.
C. Existing Hardcover Percentage - divide the number in B by the number in A and multiply by 100.
D. Proposed Hardcover in Zone - includes the existing hardcover plus all proposed additional
hardcover.
E. Proposed Hardcover Percentages - divide the ::umber in D by the number in A and multiply by 100.
F. Allowed Hardcover Percentages - if the percentages in column E for any setback zone exce'2d
the allowed percentages in column F, you should contact the Zoning Department at 473-7357
to discuss the possibilities of ob`aining a variance. Generally, if a concurrent removal
of existing hardcover mat.hes the additional hardcover proposed, resulting in no net increase
of hardcover in a specified zone, a variance may not be necessary.
LAKESHORE REGULATIONS AND HARDCOVER
SEC. 10.22. REG1ILATION i FOR "LR-lA', 'LR-lA-1', 'LR-1B'
'LR-lC' AND 'LR-IC-I* ONE FAMILY LAKESHORE RESIDENTIAL DISTRICT.
Within any "LR-lA", "LR-lA-1", "LR-lB", "LR-lC", or "LR-lC-1" One
Family Lakeshore Residential District the following regulation:
shall apply:
Subd. 1. Lakeshore Set Back Regulations. The set back
from the shoreline for lakeshore lots shall be at least 75 feet and
no building may be located closer to the shoreline than the average
distance from the shoreline of existing residence buildings on
adjacent and nearby lots.
Subd. 2. Lakeshore Hard Cover Regulations. , Within 75
feet of shoreline there shall be no excavating, filling, hard
cover, temporary or permanent structures. Within. 75 to 250 feet of
the shoreline there shall be no greater than 25% hard cover.
Within 250 to 500 feet of the shoreline there shall be no greater
than 30% hard covet. Within 500 to 1,000 feet of the shoreline
there shall be no greater than 35% hard cover.
Subd. 3. Tree Removal Regulations. No trees within 75
feet of the shoreline with the diameter of six (6) inches or more
shall be removed without first obtaining a permit from the Council.
HARDCOVER LIMITATIONS
r t`
7 �•
777
'
fC\
0ylCS%
{w`
1
0-75'
Zone
- 0%
Hardcover
allowed
75-250'
Zone
- 25%
Hardcover
allowed
250-500'
Zone
- 30%
Hardcover
allowed
500-1000'
Zone
- 35%
Hardcover
allowed
Percentage of hardcover for each
zone is calculated as follows:
Area of hardcover
in zone (sq. ft.) Percentage of
----- X 100 = Area of lot hardcover in zone
in zone (sq. ft.)
NOTE: Measure setback distances
perpendicular to the shoreline,
not along the lot line.
r1 ,� -
ON SITE SYSTEM DESIGN
FOR
ROBERT POSTHUMUS
ADVANCE SURVEYING & ENGINEERING CO.
5811 Cedar Lake Road, M.nneapolis, MN 55416 Phone 541 0500
December 8, 1987
Robert Posthumus
24200 Natches
Lakeville, MN 55044
Dear 3 t:
At yot request we have conducted an investigation of soil
conditio,is on a proposed building site designated by you. The
site is located at Big Island on Lake Minnetonka i1. Orono,
Minnesota.
The investigation was to determine the percolation rate of the
soils on site and to check for the presence of a high water table
or evidence of mottled soil that might indicate a seasonally
high, fluctuating water table.
The investigation consisted of ey—7atory soil borings to aid in
identifying soil texture and wat ,onditions. The borings were
taken at the locations indicated :gin the attached site plan.
INVESTIGATION KETHODS:
Percolation tests and one or more deep borings were taken at
the locations indicated on the enclosed site plan. Logs of the
borings and tests are attached for your installer and inspector's
reference.
RESULTS:
Because the attached boring logs veal the presence of mottled
soil and/or high water table at ` high level in _Ae borings, a
conventional system will not function at the proposed site.
R2COMMIMATIONS t
We recommend a mound system for your site and we have attached
design calculations, a bill of materials and a site plan sketch
of the system. The details of the system layout are as follows:
Protection - Care must be taken to avoid driving on the
mound area. You should rope off the mound area to prevent
construction traffic from traveling over and compacting the
soil which will make the site unusable for a disposal
system.
Piping - A 2" pipe from the pump to the center or end of the
mound will connect to a 2" manifold pipe as shown in
attached detail E12 or E15 and shall be frost proofed as
shown in detail F17 where less than 4 feet of cover is
provided. This pipe shall be the first thing installed.
Preparation - With a tractor backhoe sitting outside the
mound area, the surface of the mounk' area shall be broken up
using the teeth of the bucket.
Washed sand - Deliver truck loads of washed sand outside of
the mound area leaving the mound area roped off durinq sand
delivery. The quantity of washed sand required is listed in
the bill of materials. Use a track mounted tractor with
bucket to lay a one foot layer of sand minimum in front of
the tractor to act as a cushion for the tractor to ride on
while spreading the sand over the mound area. The completed
top of the sand shall be level and shall be the minimum sa•-:d
layer thickness specified on the design sheet. Outside the
rock bed area, slope the sand downward at a 4 horizontal to
1 vertical slope from the top of the rock bed to the
existing surface.
Rock bed - The dimensions of the rock bed are listed on the
design sheet and the number of tons of rock are listed in
the bill of materials. The clean, 3/4" to 2 1/2" rock shall
be placed atop the level sand surface. Do not drive on the
sand to deliver the rock. One way of delivering rock is
with a "ready -mix" truck with a long enough chute but the
truck must be thoroughly cleaned before loading rock so that
no cement remains.
Piping - When 8 inches of rock is in place, connect the manifold
to the existing pump line and assemble laterals as shown in
details E12 or E15 and E14 on *op of the rock. The size, lengths
and numbers of these laterals and perforation size and spacing
are shown in the attached design and bill of material sheets.
Then complete the rock placetr:nt with the remaining 4 inches of
rock.
Cover - Hay, a permeable plastic fabric, loamy sand backfill
and topsoil shall be used to cover the system as shown in
details E3 and E14.
Tanks - The capacity of the primary and secondary septic
tanks and of the pumping tank are listed in the bill of
materials. The grade on the house sewer should be 1 foot
per 100 feet. The tank shall be equipped with a pump as
specified in the bill of materials. The pump shall be
actuated by a mercury float switch, as shown in attached
detail F13, that will turn the pump on when 25% of the
estimated daily flow plus the drainback quantity of effluent
are above the lowest 18 inches in the tank and will turn the
pump off when 18 inches of effluent remain in the tank. The
pump will be supported on concrete block such that the top
of the pump will be just below the lowest 18 inches of
effluent in the tank. An alarm will be located at a
conspicuous place inside the home and will warn using both
light and sound when the effluent reaches 3 inches above the
pump turn on level. A reserve capacity as specified, shall
be provided in the tank above the alarm actuation level.
The details of the pump and pumping tank are illustrated in
attached detail F7.
If we may be of further assistance in evaluating this data,
kindly contact us at your convenience.
Sincerely,
ADVANCE SURVEYING & ENGINEERING CO.
James H. Parker P.E. & L.S.
Minn. Lic. No. 9235
PCA No. 208
President
Attachments:
Design Sheet; Bill of Materials; Details C11, C7, F17, F7, F13,
E12, E15, E14, and E3; Boring Logs; Percolation Tests and Site
Plan
INDIVIDUAL SEWAGE TREATMENT SYSTEM DESIGN
DATA FROM THE SITE:
NUMBER OF BEDROOMS 3
AVERAGE PERCOLATION RATE 13 MPI
LAND SLOPE ACROSS MOUND 3 !
ELEVATION DIFFERENCE BETWEEN
LOWEST FLOOR i MOUND SITE -2 FEET
PIPING LENGTH PUMP TO MOUND 30 FEET
CALCULATION QUANTITIES:
TOTAL PERFORATIONS PER BED 36
FLOW RATE
27
GPM
SOIL LOADING RATE
0.79
GPD/SQFT
BASAL WIDTH RATIO
1.52
REQUIRED BASAL WIDTH
48
FEET
MINN. DOWNSLOPE DIKE WIDTH
14
FOE 3/1 UPSLOPE WIDTH
8
FOR 3/1, DOWNSLOPE WIDTH
11
FEET
INITIAL DOWNSL0PE WIDTH
14
FEET
HEAD REQUIREMENTS
14
FEET
DRAINBACK QUANTITY
5
GALLON:
DOSE QUANTITIY
113
GALLON,
MINIMUM RESERVE STORAGE
450
GALLCYS
DIMENSIONS OF THE DOUBLE MOUND:
ROCK LAYER SIZE - 1' x 10' x 19 FEET
SEPERATION BETWEEN ROCK BEDS 4 FEET
TOTAL DOUBLE MOUND WIDTH @
BASE 43 FEET
HEIGHT @ DOWNSLOPE EDrE 3.3 FEET
HEIGHT @ UPSLOPE EDGE 3.0 FEET
MINIMUM SAND LAYER THICKNESS 1 FEET
BILL OF MATERIALS
1. A PRIMARY AND A SECONDARY SEPTIC TANK WITH LIQUID CAPACITY OF
1000 GALLONS EACH. SEE DETAIL C7 ATTACHED FOR PROPER CONSTRUCTION.
2. A PUMPING TANK OF 1000 GALLONS LIQUID CAPACITY, SEE DETAIL F7.
3. 4" PVC HOUSE SEWER PIPE, AS REQD., FROM HOUSE THRU PUMP TANK.
4. 1/3 HP SUBMERSIBLE PUMP EQUIPED WITH MERCURY FLOAT SWITCH AND
AUDIO AND LIGHT ALARM INSIDE HOME AS PER DETAILS F7 AND F13 & BLOCK
(CAPABLE OF DELIVERING 27 GPM AT 14 FEET OF HEAD)
5. 2" PVC PRESSURE LINE - 40 FEET, 2" UNION, 3 - 2" ELBOWS, 4 - 2" TEES
2" BENDS AS REQD. IN PRES. LINE, 6 - 2" X 1.25" RED., 0 - 1.25" TEES,
6 - 1.25" CAPS, ASSEMBLED AS PER DETAILS E12 (ALT. LOCATION) & E14.
6. 6 - 1.25" PVC LATERALS 16 ' LONG WITH 1/4" PERF @ 3' INT. AS PER E12
(PERFORATIONS PER LATERAL INCLUDING ONE IN END CAP - 6 )
7. SAND (WASHEL) - 150 TONS, 3/4" TO 2.5" CLEAN ROCK - 20 TONS
LOAMY SAND FILL - 22 TONS, TOPSOIL - 53 TONS
8. HAY AND PERMEABLE FABRIC TO COVER 51 SQUARE YARDS.
INSTALLATION NOTES:
1. DO NOT DRIVE ON THE PROPOSED TREATMENT AREA !!
2. INSTALL PRESSURE LINE TO CENTER OF MOUND FROM PUMP TANK FIRST.
3. USE BACKHOE TEETH TO ROUGHEN MOUND AREA WITHOUT DRIVING THEREON.
;DO NOT ATTEMPT THIS WHEN SOIL IS WET ENOUGH :o ROLL INTO "WIRE")
4. USE CRAWLER TRACTOR WITH BUCKET TO PLACE SAND TO REQUIRED SHAPE. TOP
OF SAND MUST BE LEVEL, PLACE SAND IN FRONT OF TRACKS TO DRIVE ON TOP.
5. SET MERCURY FLOAT SO THAT PUMP IS SUBMERSED AT TURN OFF LEVEL AND SO
THAT PUMP TURNS ON WHEN 19 GALLONS ARE ABOVE TURN OFF LEVEL.
6. SET ALARM ACTIVATOR 3" ABOVE TURN ON 113 GALLONS MUST REMAIN
6. SET ALARM ACTIVATOR 3" ABOVE TURN ON 450 GALLONS MUST REMAIN
ABOVE THIS ACTIVATOR TO THE SEPTIC TANK INLET PIPE AS A RESERVE.
INSULATED
VENT
I P E
LOCATE THE SEPTIC TANK
NEAR THE MAIN SOURCE
OF SEWAGE
CLEANOUT
—
` .r
6To TO 12" 0 F
EARTH COVER
V
,,� TO SOIL
NO CLOSER ` �" "- TREATMENT
THAN 10' UNIT
VERTICAL SIDEWALL SEPTIC TANK
-AT LEAST
4" DIA.
MIN. rAT LEAST I"
7
F
i
-AT LEAST
3„
FINISHED GRADE
6" TO 1'2" SOIL COVER
AT
DIMENSIONS FOR TANKS WITH VERTICAL SIDES
WIDTH, W
24" MINIMUM
LENGTH, L
2 TO 3 TIMES THE WIDTH
DIAMETER
60" MINIMUM
DEPTH, D
30" MINIMUM; 78" MAXIMUM
A
0.2 D
8
6" MINIMUM; 0.2 D MAXIN" IM
C 10.4
D
AT LEAST 4 FEET
AT LEAST
4" DIA.-
LEAST 1"-
t •
F
A
C
7
NOTES:
1. SANITARY TEES AT LEAST 4 INCHES IN DIAMETER 4. MANHOLE COVERS SHALL BE LOCATED WITHIN
NAY BE USED IN PLACE OF BAFFLES. 12 INCHES BUT NO CLOSER THAN 6 INCHES
2. THERE SiLkLL BE ONE OR MORE M^NHOLES, 20" BELOW FINISHED GRADE AND COVERED WITH AT
LEAST DIMENSION AlTD LOCATED WITHIN 6 FEET LEAST 6 INCHES OF EARTH.
OF ALL TANK WALLS. S. SEPARATION DISTANCE BETWEEN END OF INLET
3. Ay INSPECTION PIPE OF AT LEAST 4 INCHES PIPE AND NEAREST POINT ON BAFFLE SHALL BE
DIAMETER OR A MANHOLE SHALL BE LOCATED NO LESE THAN 6 INCHES OR NO MORE THAN 12
0
OVER BOTH THE INLET AND OUTLET DEVICES. INCHES.
THE CENTER LINE OF THE INSPECTION PIPES 6. FOR HORIZONTAL CYLINDRICAL TANKS DIMENSION
SHALL BE THE SAME AS THE CENTER LINE OF A IS O.15D AND DIMENSION C IS 0.35D.
THE BAFF-LE OPENINGS OR SANITARY TEES.
For frostproofing pump discharge pipe place an envelope
of material with air space around pipe for insulation. Use
a rock envelope only with metal pipe. Pump discharge pipe
can be laid inside a larger pipe. Keep discharge pipe on
a grade back to pump. Allow no low spots in discharge
line. ?olystyrene should be at least two feet wide.
Backf i I I
Expanded Polystyrene
Tamped Backfil I
Fi I I
Space
With Foam
Insulation -/ L Pump
for
Added
Protection
Discharge
Pipe
Wherever possible maintain a grass cover over top of
trench and allow snow to remain in place. When snow
cover is light, place 6 marsh hay layer on ground above
pipe.
b
r
V
FROM
SEPTIC
TANK
PUMPABLE I I
CAPACITY L`
AT LEAST
75 GALLONS
PIGGY BACK PLUG IN WEATHER
PROOF ENCLOSURE -OR LOCATE
IN HOUSE BASEMENT
POWER SUPPLY ---'C
CONTROL WIRE ---
PUMP POWER CORD
240 MANHOLE
PLASTIC ROPE OR CHAIN
WITH ANCHOR
ALARM FLOAT ON SEPARATE
ELECTRICAL CIRCUIT -
RESERVE CAPACITY
AFTER ALARM SOUNDS
START LEVEL
YJ
SHUT- OFF LEVEL
T
12"-18" MINIMUM DEPTH
ALARM WIRE
MANHOLE COVER SECURED
TO PREVENT UNAUTHORIZED
ENTRY
�1�
UNION OR OTHER
QUICK DISCONNECT
FITTING
PIPE IS LAID ON A
UNIFORM SLOPE FROM
PUMP STATION UP TO
SOIL TREATMENT AREA
FOR PROPER DRAINBACK
In FCWFR
SUPF-LY
I TO
t�j;! P U rA P
i
i
^:SrLANC EMENT I
wE:GH r
ADJUSTING
SCREW
MAGNETIC CONTACTOR
PUMP CONTROLS
SV°ITCH PLUGS
;:PTO POWER
SUPPLY —
ADJUSTABLE
%':EIGHT —
�- PUMP PLUGS
INTO SWITCH
POWER CORD
TO PUMP
i
MERCURY FLOAT
TO RELAY IN —
WEATHER-PROOF
ENCLOSURE
OUTSIDE OF
PUMP TANK
POWER CORD TO
PUMP COMES
FROM RELAY
i
MERCURY
(SWITCH FLOATS
NOTE: L='JLL AT LOCATION OF STOP CONTROL MUST BE ABOVE PUMP CASE
ELECTRODE
HANGER
Q START LEVEL
RELAY
?STOP LEVEL
LAYOUT OF PERFORATED PIPE LATERALS FOR
PRESSURE DISTRIBUTION IN MOUND
PERFORATED PLASTIC PIPE
PERFORATIONS SPACED 30" OR 36" TON SpAcl NG
END ON CENTER. PERFORATION pERFORA
SIZE MAY BE 3/i6; 7/32; /6'
VIEW OR i/a".
M PIPE ANIFOLD
PERFORATIONS ON BOTTOM OF
PLASTIC PIPE
NL
Z END CAP 4Q ,
IEN�TN
LATERAL
ERroorE
D
r7F P
_ (ALTERNATE LOCAT.'ON
OF PIPE FROM PUMP)
PIPE FROM
PUMPING CHAMBER
MANIFOLD LOCATED AT END OF PRESSURE DISTRIBUTION SYSTEM
FROM
1MP
LTERNATE
)CATION OF PIPE
ROM PUMP
E-14
TEE TO TEE LATERAL -MANIFOLD CONSTRUCTION
Topsoi I
Loamy Sand Backfill
Tee
�. Reducer
O Manifold
Tee . • • • ...
12- I nch Layer of
Clean Sand
Grass Cover
Hay or Straw Covered
by Layer of Red Rosin
Paper (or nyl _." fabric)
Perfora *',.)n in Cap Near
Crown or Pipe
Perforations at Lateral
In%lr,rt
R00% L.cyer
PERFORATED
LATERALS
SANDY LOAM SOIL
LAYER OF STRAW OR .�
MARSH HAY COVERED
WITH RED ROSIN PAPER
PIPE FROM PUMP
�-'_•.;,: ���'/
CLEAN BOCK
DIVERSION FOR
L" TOPSOILS ,, .�
SURFACE WATER
SOP ,.
ANp
ILL Sip` 361KE
,
AYER
N Up
8qR gTUR
BIER lq . ='' - w
YER
Loos of Soil Borinas
B-31
Location or Project A�
tvrinia Wade by F. /-1{A'I tNpnL,c'fcr Date jl / / �' 7
i
Claaaification System: AASHO ; USDA-SCS _�; Unified other
Auger used (check two): Hand ✓, or Power _; Flight , or Bucket other
Depth, Boring number
in Surface elevation
feet
0
03
2 —
3—
4 —
s-
6-
7—
e-
End of boring at /, feet.
Standing water table:
Resent at feet of depth,
hours after boring.
Not present in boring hole
Mottled soil!
Observed at feet of depth.
Not present in boring hole
Observations and comments:
Depth, Boring number
in Surface elevation
feet
0
End of boring at Z ; feet.
Standing water table:
Present at feet of depth,
hours after boring.
Not present in boring hole
Mottled soil:
Observed at - feet of depth.
Not present in boring hole
Observations and comments:
-Loits of Soil sari
Location or Project
8-31
brings made by Date 1
Classification System: AASHO USDA-SCS _,�; Unified ; other
Auger used (check tro): Band JZ. or Power ; Plight , or Bucket L,-"; other
Depth, Boring number 3 1 Depth Boring number
in Surface elevation
feet
acx
4—
S
i-
7—
I --
Ind of boring at .5.. Z3 feet.
Standing water table:
Present at feet of depth,
hours after boring.
Not present is boring hole _ �Z
Mottled soil:
Observed at feet of depth.
Not present in boring hole
Observations and comments:
in Surface alevatior
fast
1 --
2
3
End of boring at S' feet.
Standing water table:
Present at feet of dep-
hours after boring.
Not present in boring hole
ttled soil:
Observed at 2-- feet of depth.
Not present in boring hole
Observation:; and comments:
s of Soil_ Borinas
Location or Project 8-31
Bar isge made by -- d< Mull chum...::fe►- Date _ �� / /9 5?7
Clueificatioa 8retess AAS1Eic0 ; USDA-SCS k-; Unified _; other
dupr used (check two): Hand , or lower Je ; flight _�or Bucket ; other
Depth,
is
feet
0 —
O.5
1�
Z —
3—
s —
s•5
7—
Boring number _
Surface elevation
elegy k �ou,N•.� sw� cl
C► i ivt b ti-rw••• tc� .�-r ��..�
)11rL broom^ SQv'2.y 10a.-,
+0 SQ vt c(
z -S 07e 0.4- 7r4 i r•0'N lej
15-1007• o L& c r,.� w.e44 Ie j ----
tad of boring at �'•3 :�e.t.
Standing water table:
present at feet of depth,
_ hours after boring.
ON Present in boring hole ✓ .
Mottled soil:
Observed at -- feet of depth.
Fiat present in boring hole
Obsurvations and convents:
Depth, Borinp number
In Surface elevation
feet
7 —
a —
Ind of borinX at .t1o'-5 feet.
Standing water table -
Present at feet of depth,
hours after boring.
tot present in boring hole _.
Mottled soil:
Observed at Z feet of depth.
Not present in boring hole
Observations and convents:
y
IELcOLATION TEST DATA SHEET
d-39
Test bole location
Date test bole was prepared 11 19 1/ 87
Diameter of bole, to inches.
Soil data from test bole:
Depth, inches
n--7
7- 14
Method of scratching sidewall 2 N Z cv 1; "-. , "-
Sole number
Depth of bole bottom, inches.
Soil texture
Depth of pea -sized gravel in bottom of hole, inches.
Date and hour of initial water filling 1/:114;-/9. -1 '4
Depth of initial water filling, 1. inches above hole bottom.
Method used to maintain at least 12 inches of water depth in hole for at least
4 hours d.+.iax,.+'ir ci1.Inn 0
Percolation test readings made by on
11 / 7 starting at a.u. . Maximum water depth above hole bottom
ate)
during test, 4.4o inches.
Tim
Time
Intervae,
Minutes
Measurement,
inches
Drop in water
level, inches
Percolation
rate,
minutes per
inch
Remarks
Z A- C/
I.
N•H
3�
12
7
Z I. 1
; y7.0
1, 7
Percolation rate - 2 1
■inutes per inch.
R-39
PERCOLATION TEST DATA SHEET
Test bole location Bole number
Date test bale was Prepared 1P '�7 . Depth of hole bottom. ?_-:- inches.
Diameter of bale, � inches.
Soil data from test bale:
Depth, inches
Method of scratching sidewall - - If._ j
Soil texture
Depth of pea -sized gravel in bottom of hole, Z inches.
Date and hour of initial water filling `{ 7 Pi'1
Depth of initial water filling, 8 /Inches above hole bottom.
Method used to maintain at least 12 inches of water depth in hole for at least
4 hours A„4 , n, a- , z + i
Percolation test readings made by 2`1 re on
/ !;' 21 starting at 1%5 7 Maximum water depth above hole bottom
date)
during test. �_ inches.
Time
Time
Interval,
Minutes
Measurement.
inches
Drop in water
level, inches
Percolation
rate,
minutes per
inch
Remarks
J 7
i (, 7 c,
2 Z
40
G• I
Z;Z7
.I
5.314
Z0. 2
h
30• !a 7
_
r2.`T%
;�-. &14
2
)AF11
Oa.
3 7
1 )
r
20. qQ
q.q I
Q. 70
. ?.
5 9
23.E
Per. -elation rate = ? ____ minutes per inch.
i-39
PERCOLATION TUT DATA SKEET
Tact bol• location Role number
Date test hole was prepared /d /g/ S 7 Depth of hole bottom, 144 inches.
-T-
Dia■star of hole, _ inches.
Soil data from test bole:
ispth, inches Soil texture
Li
V � /t ✓• v {cam, Mau c �•.•.� -
Method of scratching sidewall
Depth of pea -sized gravy. -n bottom of hole, 2 inches.
Date and hour of initial water filling )11 rt/g -1
r
Depth of initial water filling, inches above hole bottom.
Method used to maintain at least 12 inches of water depth in hole for at least
4 bours kss e.r,o"�- I " r�+
Percolation test readings made by A'.j! e.. - cr on
/8 starting at �59� Maximum water depth above hole bottom
date
during test, a.- inches.
Tim
Tine
Interval,
Minutes
Measuresient,
inches
Drop in water
level, inches
Percolation
rate,
minutes per
inch
Remarks
rf
Z+�i'1I) .,
rn
7q
2. r
_3. 5-0
Z
3r
Iq 2. 4
/y.0
l-5
ZZ". 7�
5L
Z 2. 7 9
2. yA
7
/
3 3
2.70
nL
ZI•ZA.7
21,4
Percolation rate - 8
minutes per inch.
PERCOLATION TEST DATA SHEET
•-39
Test bole location
Dote test bole me prepared / /11'1®f 8 7 ,
Diameter of bole, ;o inches.
Soil data from test bole:
Depth, inches
Method of scratching sidewall
Hole number q
Depth of hole bottom, 21` inches.
Soil texture
1
i
t
Depth of pea-sixed gravel in bottom of hole, 1 inches.
Date and hour of initial water filling I / i '�' !r-, 3 :-5O F'Y�
Depth of initial water filling, Ifs inches above hole bottom.
Method used to maintain at least 12 inches of water depth in hole for at least
♦ hours A u+v r-n cf+, 'c s t r_ F'�V1
Percolation test readings made by E /` 1 �' i v �.�, �' ��a r- on
/& 7 starting at 2. 0 Z �� Maximum water depth above hole bottom
dat4)
during test, .5-.8 inches.
Time
Tim
Interval,
Minutes
Measurement,
inches
Drop in water
level, inches
Percolation
rate,
minutes per
inch
Remarks
30 -,,o sq
30.
11
q. a
Z C3
2 l
>025
Z9
►;
'34 �4
5• Z
19-104
3•tio
1.87
/'/ `'
u()
S•
20
4
Zi z
c
Percolation rate - /f _ minute; per inch.
g-39
PERCOLATION TEST DATA SHUT
Test bole location Hole number
Date test bole was prepared I r� 1 A `7 . Depth of hole bottom, / inches.
r
Diameter of bole, ( _ inches.
Soil data from test bole:
Depth, inches
-7
Soil texture
i
/ 1 /e
Method of scratching sidevall i. �' ' '4' r' M + l e.
Depth of pea-sixed gravel in bottom of hole, _ inches.
Date and hour of initial water filling / / % /s 3 ',60 114
Depth of initial water filling, 14 _ inches above hole bottom.
Method used to maintain at least 12 inches of water depth in hole for at least
4 hours A , 4- "vr' A- , , f- `. ,
Percolat ion test read ings made by <� At I L r Y? 411 n411 �- on
starting at 2:0 S a' Maximum water depth above hole bottom
date - '
during test, inches.
Tine
Tine
Interval,
Minutes
Measurement,
inches
Drop in water
level, inches
Percolation
rate,
minutes per
inch
Remarks
2' Jt
30 C1
2. U
Z..2-1
77
Z;r
Z3'24.L.Z
C cr
Z
G
n-
I Z
-22 q3
1131
r f
--
22.97
Z
Percolation rate - minutes per inch.
ON SITE SYSTEM DESIGN
FOR
ROBERT POSTHUMUS
Iq 1 71�7
iwt � o �w
ADVANCE SURVEYING & ENGINEERING CO.
M11 Cedar Lake Road, Minneapolis. MN 55416 Phone 541 0500
February 29, 1988
Robert Posthumus
24200 Natches
Lakewville, MN 55044
Dear Robert:
At your request we have conducted an investigation of soil
conditions on a proposed building site designated by you. The
site is located at Big Island on Lake Minnetonka in Orono,
Minnesota.
The investigation was to determine the percolation rate of the
soils on site and to check for the presence of a high water table
or evidence of mottled soil that might indicate a seasonally
high, fluctuating water table.
The investigation consisted of exploratory soil borings to aid in
identifying soil texture and water conditions. The borings were
taken at the locations indicated on the attached site plan.
1WZ2 XQATZON MT=ODS:
Percolation tests and one or more deep borings were taken at
the locations indicated on the enclosed site plan. Logs of the
borings and tests are attached for your installer and inspector's
reference.
u80LT8t
Because the attached boring logs reveal the presence of mottled
soil and/or high water table at a high level in the borings, a
conventional system will not function at the proposed site.
uC010[D�TIO�/ s
We recommend a mound system for your site and we have attached
design calculations, a bill of materials and a site plan sketch
of the system. The details of the system layout are as follows:
Protection - Care must be taken to avoid driving on the
mound area. You should rope off the mound area to prevent
construction traffic from gaveling over Arid compacting the
soil which will make the site unusable for a disposal
system.
Piping - A 2" pipe from the pump to the center of the mound
will connect to a 2" manifold pipe as shown in attached
detail E12 and shall be frost proofed a:., shown in detail F17
where 'less than 4 feet of cover is provided. This pipe
shall be the first thing installed.
Preparation - With a tractor backhoe sitting outside the
mound area, the surface of the mound area shall be broken up
using the teeth of the bucket.
Washed sand - Deliver truck loads of washed sand outside of
the mound area leaving the mound area roped off during sand
delivery. The quantity of washed sand required is listed in
the bill of materials. Use a track mounted tractor with
bucket to lay a one foot layer of sand minimum in front of
the tractor to act as a cushion for the tractor to ride on
while spreading the sand over the mound area. The completed
top of the sand shall be level and shall be the minimum sand
layer thickness specified on t design sheet. Outside the
rock bed area, slope the sand �_ _vinward at a 4 horizontal to
1 vertical slope from the top of the rock bed to the
existing surface.
Rock bed - The dimensions of the rock bed are listed on the
design sheet and the number of tons of rock are listed in
the bill of materials. The clean, 3/4" to 2 1/2" rock shall
be placed atop the level sand surface. Do not drive on the
sand to deliver the rock. One way of deliveri.g rock is
with a "ready -mix" truck with a long enough chute but the
truck must be thoroughly cleaned before loading rock so that
no cement remains.
Piping - When 8 inches of rock is in place, connect the
manifold to the existing pump line and assemble laterals as
shown in details E12 and E14 on top of the rock. The size,
lengths and numbers of these laterals and perforation size
and spacing are shown in the attached design and bill of
material sheets. Then complete the rock placement with the
remaining 4 inches of rock.
Inspection - Provide inspection pipe access through the top
of the mound so that the liquid level can be measured. The
inspection pipes should be installed at opposite ends of the
mound rockbed. The inspection pipes should provide access
directly into the portion of the distribution system that
contains or is ment to contain effluent.
Cover - Hay, a permeable plastic fabric, loamy sand backfill
and topsoil shall be used to cover the system as shown in
details E3 and E14.
Tanks - The capacity of the primary and secondary septic
tanks and of the pumping tank are '.fisted in the bill of
materials. The grade on the house sewer should be 1 foot
per 100 feet. The tank shall be equipped with a pump as
specified in the bill of materials. The pump shall be
actuated by a mercury float switch, as shown in attached
detail F13, that will turn the pump on when 25% of the
estimated daily flow plus the drainback quantity of effluent
are above the lowest 18 inches in the tank and will turn the
pump off when 18 inches of effluent remain in the tank. The
pump will be supported on concrete block such that the top
of the pump will be just below the lowest 18 inches of
effluent in the tank. An alarm will be located at a
conspicuous place inside the home and will warn using both
light and sound.when the effluen* reaches 3 inches above the
pump turn on level. A reserve pacity as specified, shall
be provided in the tank above the alarm actuation level.
The details of the pump and pumping tank are illustrated in
attached detail F7.
If we may be of further assistance
kindly contact us at your convenience.
Sincerely,
ADVANCE SURVEYING i
■es H. Parker P.E
nn. Lic. No. 9235
A No. 208
esident
Attachments:
INEERING CO.
i L.S.
in evaluating this data,
Design Sheet; Bill of Materials; uatails C11, C7, F17, F7, F13,
E12, E14, and E3; Boring Logs; Percolation Tests and Site Plan
INDIVIDUAL SEWAGE TREATMENT SYSTEM DESIGN
DATA FROM THE SITE:
NUMBER OF BEDROOMS 3
AVERAGE PERCOLATION RATE 21 MPI
LAND SLOPE ACROSS MOUND 2
ELEVATION DIFFERENCE BETWEEN
LOWEST FLOOR i MOUND SITE 20 FEET
PIPING LENGTH PUMP TO MOUND 95 FEET
CALCULATION QUANTITIES:
TOTAL PERFORATIONS
36
FLOW RATE
27
GPM
SOIL LOADING RATE
0.60
GPD/SQFT
BASAL WIDTH RATIO
2.00
REQUIRED BASAL WIDTH
20
FEET
MINN. DOWNSL0PE DIKE WIDTH
0
FOR 3/1, DOWNSLOPE WIDTH
10
FEET
INITIAL DOWNSLOPE WIDTH
10
FEET
HEAD REQUIREMENTS
37
FEET
DRAIINBACK QUANTITY
17
GALLONS
DOSE QUANTITIY
113
GALLONS
MINIMUM RESERVE STORAGE
450
GAL -)NS
DIMENSIONS OF THE MOUND:
ROCK LAYER SIZE - 1' x 10' x
37
FEET
FOR 3/1, UPSLOPE WIDTH
S
FEET
TOTAL MOUND WIDTH @ BASE
29
FEET
TOTAL MOUND LENGTH @ BASE
56
FEET
FINAL DOWNSLOPE WIDTH
10
FEET
HEIGHT @ DOWNSLOPE EDGE
3.2
FEET
HEIGHT @ UPSLOPE EDGE
3.0
FEET
MINIMUM SAND LAYER THICKNESS
1
FEET
BILL OF MATERIALS
1. A PRIMARY AND A SECONDARY SEPTIC TANK WITH LIQUID CAPACITY OF
750 GALLONS EACH. SEE DETAIL C7 ATTACHED FOR PROPER CONSTRUCTION.
2. A PUMPING TANK OF 750 GALLONS LIQUID CAPACITY, SEE DETAIL F7.
3. 4" PVC HOUSE SEWER PIPE, AS REQD., FROM HOUSE THRU PUMP TANK.
4. 1/2 HP SUBMERSIBLE PUMP EQUIPED WITH MERCURY FLOAT SWITCH AND
AUDIO .ND LIGHT ALARM INSIDE HOME AS PER DETAILS F7 AND F13 6 BLOCK
(CAPABLE OF DELIVERING 27 GPM AT 37 FEET OF HEAD)
5. 2" PVC PRESSURE LINE - 105 FEET, 2" UNION, 3 - 2" ELBOWS, 2 - 2" TEES
2" BENDS AS REQO. IN PRES. LINE, 3 - 2" X 1.25" RED., 3 - 1.25" TEES,
6 - 1.25" CAPS, ASSEMBLED AS PER DETAILS E12 (ALT. LOCATION) i E14.
6. v - 1.25" PVC LATERALS 17 ' LONG 4i'_`H 1/4" PERF @ 3' INT. AS PER E12
(PERFORATIONS PER LATERAL INCLU:-)I_:G ONE IN END CAP - 6 )
7. SAND (WASHED) - 82 TONS, 3/4" TO 2.5" CLEAN POCK - 19 TONS
LOAMY SAND FILL - 19 TONS, TOPSOIL - 37 TONS
S. MAY AND PERMEABLE FABRIC TO COVER 50 SQUARE YARDS.
INSTALLATION NOTES:
1. DO NOT DRIVE ON THE PROPOSED TREATMENT AREA !!
2. INSTALL PRESSURE LINE TO CENTER OF MOUND FROM PUMP TANK FIRST.
3. USE BACKHOE TEETH TO ROUGHEN MOUND AREA WITHOUT DRIVING THEREON.
(DO NOT ATT ^APT THIS WHEN SOIL IS WET ENOUGH TO ROLL INTO "WIRE")
4. USE CRAWLER TRACTOR WITH BUCKET TO PLACE SAND TO REQUIRED SHAPE. TOP
OF SAND MUST B7 LEVEL, PLACE SAND IN FRONT OF TRACKS TO DRIVE ON TOP.
5. SET MERCURY FLOAT SO THAT PUMP IS SUBMERSED AT TURN OFF LEVEL AND SO
THAT PUMP TURNS ON WHEN 129 GALLONS ARE ABOVE TURN OFF LEVEL.
6 , ALARM ACTIVATOR 3" ABOVE TURN ON 450 GALLONS MUST REMAIN
ABOVE THIS ACTIVATOR TO THE SEPTI^_ TANK INLET PIPE AS A RESERVE.
INSULATED
�,,VENT
PIPE
C" r AN
UOT-
LOCATE THE SEPTIC TANK
NEAR THE MAIN SOURCE
OF S'VIAG E
[..,NO CLOSER
THAN 10'
6" TO 12" OF
EARTH COVER
TO SOIL
TREATMENT
UNIT
I"
MIN.
a -
VERTICAL SIDEWALL SEPTIC TANK
FINISHED
GRADE
AT LAST 6" TO I2" SOIL COVER
4" DMA.
FAT LEAST I" AT
A
8
-AT
LEAST
3"
AT LEAST
4" DIA.-
LEAST I"i
DIMENSIONS FOR TANKS WITH VERTICAL SIDES
WIDTH. W
24" MINIMUM
LENGTH, L
2 TO 3 TIMES THE WIDTH
DIAMETER
60" MINIMUM
DEPTH, D
30" MINIMUMi 78" MAXIMUM
A
0.2 D
6
6" MINIMUM; 0.2 D MAXIMUM
C
0.4 D
n R��=
i iE�_m�
C
6"
AT LEAST 4 FEET
MOTES
1. SANITARY TEES AT LEAST 4 INCHES IN DIAMETER 4. MANHOLE COVES SHALL BE LOCATID WITHIN
MAY BE USED IN PLACE OF BAFFLES. 12 INCHES BUT NO CLOSER THAN 6 INCHES
2. THERE SHALL BE ONE OR MORE MANHOLES, 20" BELOW FINISHED GRADE AND COVERED WITH AT
LEAST DIMENSION AIM LOCATED WITHIN 6 FEET LEAST 6 TUCHES OF EARTH.
OF ALL TANK WALLS. S. SEPARAT DISTANCE BETWEEN END OF INLET
3. AN INSPECTION PIPE OF AT LEAST 4 INCHES PIPE A' EAREST POINT ON BAFFLE SHALL BE
DIAMETER OR A MANHOLE SHALL BE LOCATED 140 LF.S Ui 6 INCHES OR NO MORE THAN 12
OVER BOTH THE INLET AND OUTLET DEVICES. INCHES.
THE CEN,rER LINE OF THE INSPECTION PIPES 6. FOR HOR TAL CYLINDRICAL TANKS DIMENSION
SHALL BE THE SAME AS THE CENTER LINE OF A IS 0. `' AND DIMENSION C IS 0.35D.
THE BAFFLE OPENINGS OR SANITARY TEES.
For frostproof ing pump discharge pipe place an envelope
of material with air space around pipe for insulation. Use
a rock envelope only with metal pipe. Pump discharge pipe
can be laid inside a larger pipe. Keep discharge pipe on
a grade back to pump. Allow no low spots in discharge
line. Polystyrene should be at least two feet wide.
Expanded
Polystyrene
Tamped
Fi I I Space
for Added
Backf i I I
With Foam
Protection
Insulation -/ / Pump
Discharge Pipe
Wherever possible maintain a grass cover over top of
trench and allow snow to remain in place. When snow
cover is light, place 6 marsh hay layer on ground above
pipe.
FFROM1
SEPTIC
TANK j
PUM PABLE
CAPACITY
AT LEAST
75 GALLONS
PIGGY BACK PLUG IN WEATHER
PROOF ENCLOSURE -OR LOCATE
IN HOUSE BASEMENT
POWER SUPPLY
CONTROL WIRE
i
PUMP POWER CORD
24" MANHOLE
PLASTIC ROPE OR CHAIN
WITH ANCHOR --�
ALARM FLOAT ON SEPARATE
ELECTRICAL CIRCUIT ---\
RESERVE CAPACITY
AFTER ALARM SOUNDS
— — y — — _START LEVY v_
SHUT - QFF LEVELS _
I
12"-16" MINIMUM DEPTH
ALARM WIRE
MANHOLE COVER SECURED TO
PREVENT UNAUTHORIZED
ENTRY
91
UNION OR OTHER OUICK
DISCONNECT FITTING
P+;�c IS LAID ON A
L"wFORM SLOPE FROM
=".JMP STATION L` TO
91
--837kL TREATMENT AREA
FOR PROPER DRAINBACK
IF PIPE AT TANK MUST
BE LOWER THAN UNION
TO GET ELEVATION FOR
DRikliNBACK A 1/4 INCH
WEEP HOLE MUST BE
USED
PUMP CONTROLS
SWITt - PLUGS
P0vVFR - :NT0 POWER
SUPPLY id r SUPPLY -f
O
I PUMP
I -
WIF' EJ.
J.
`I
fSFLANC. MENT I
ADJUSTING / ADJUSTABLE
�_'RE-/ -' WEIGHT -1
MAGNETIC. CONTACTOR
PUMP PLUGS TO RELAY IN -+
INTO SWITCH WEATHER-PROOF
ENCLOSURE
OUTSIDE OF
PUMP TANK
I
POWER CORD
TO PUMP
MERCURY FLOAT
POWER CORD TO
PUMP COMES
FROM RELAY
MERCURY, FLOATS
NOTE: LEVEL AT LOCATION OF STOP CONTROL MUST BE ABOVE PUMP CASE
ELECTRODE
HANGER
QSTART LEVEL
RELAY
STOP LEVE
LAYOUT OF PERFORATED PIPE LATERALS FOR
PRESSURE DISTRIBUTION IN MOUND
PERFORATED PLASTIC PIPE
PERFORATIONS SPACED 30" OR 36" '/ON SPA
�IN�
ENO ON CENTER. PERFORATION RFol
f
MAY BE 3/46; 7/32 i4 Pp
VIEW/4" Is
MANIFOLD
PERFORATIONS ON BOTTOM OF
PLASTIC PIPE
0
END CAP 10'.
D LAr fgAL
RFoRA1E
of
(ALTERNATE LOCATION
OF PIPE FROM PUMP)
M
N
� APE FROM
PLWING CHAMFER
E-14
TEE TO TEE LATERAL -MANIFOLD CONSTRUCTION
Topsoi I
Loamy Sand Backfill
Manifold
12- I nch Layer of
Clean Sand
Grass Cover
Hay or Straw Covered
by Layer of Red Rosin
Paper (or nylon fabric)
Perforation in Cap Near
Crown of Pipe
Perforations at Lateral
Invert
Rock Layer
PERFORATED
_,�►��`::� --... _;---_..�- LATERALS
SANDY LOAM SOIL •,� ...":.;,,� .;_',
LAYER OF STRAW OR
MARSH HAY COVERED ' r :6 .�
WITH RED ROSIN PAPER �/•
PIPE ROM PUMP
, r '
CLEAN BOCK DIVERSION FOR
je ,! SURFACE WATER
60 TOP SOI L ' / " • / '
�00,
3 sal.
Max i
LEAN
PE
SAND FILL SO ems.. •..
BRpKENAYER 4 _ L
Ur tn
-
Bqa U� �•_��, w
IJR L :..
LAyER
ZONING FILE NO. 1247
CITY OF ORONO NOTICE OF PLANNING COMMISSION ACTION
P.O. Box 66
Crystal Bay, MN 55323 473-7357 Date of Notice: 2-17-88
---------------------------------------------------------------------------
TO: Robert Posthumus COPIES TO: Fred A. Bruntjen
24200 Natchez Ave. 5135 Morton Street
Lakeville, MN 55044 Edina, MN 55436
TYPE OF APPLICATION: X Variances
---------- ------------------------------------------------
DATE OF MEETING: 2-16-88 VOTE: For Against
Planning Commission recosasends the following:
Tabled for reasons noted below
NOTES AND SPECIAL CONDITIONS:
The application was tabled because neither you or an authorized
represenative was present for the public hearing scheduled to review your
variance application.
Prior to scheduling the application before the Planning Commission at
their March 21, 1988 meeting, a revised survey must be submitted
designating improvements per Mike Gaffron's letter (1-19-88) and sketch.
Applicant's next scheduled meeting is dependent upon receipt of
additional information. Deadline for the March 21, 1988 meeting is March
14, 1988 or April 11, 1988 for the April 18, 1988 meeting.
If the applicant has trouble obtaining additional information, please
contact the Zoning Department (473-7357).
CERTIFICATB OF MAILING
STATE OF MINNESOTA )
COUNTY OF HENNEPIN ) ss.
CITY OF ORONO )
I, Jamie Bosma, of the City of Orono, Hennepin County,
Minnesota, do hereby certify that a Notice of Public Hearing
concerning the matter of #1247, was mailed to the attached list
of property owners .
In Witness Whereof, I have hereunto set my hand and seal
this 29th day of January, 1988.
Ja a Bosma
0
91V
947�
946
SCALE: t"w10
WETABL INTERFACE WITH DIAGONAL
PROPMEO ti
61 � 1000 6ALLON % �h
$ P77C TANK
: PROPOSED
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PIMPINS K
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OW
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ACOP03E0 tv p�1 ' �� v+ `
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SCALE. V'spd' Jo,
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WETABLE I t. TERFACE WITH DIAGONAL
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♦ .� P!C SEPTIC TANK` �h C30, e� 1 f O v�
APOH7BE �46 / N
i A00 44t
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949
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Is 0
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yED / O 41ON /
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, .q /
o��
5
c� 5/
eerier of trnl.a) motement resulting
the fill raises thch sod e trenAbove the origoirl surtait .e sInldtra
uenl w the sud particles. Water lie•
lion of the sand filleted effluent m t un into the ttiparsd which
latively stagnant as lateral or vertical
u%uAll% has the highest i onducti%it-, of all moil horizons It ill. I and
oral hydraulic gradients which are
2►. "Thus, surfAte seepage of potentially dangerous efflueut is pre
rider these conditions is inadequate,
vented. Once into the topsoil, the liquid in mote laterally until
when this stagnant liquid surfaces in
absorbed into the underlying clay subsoil whit to will purify the
naideration is the principal justifica.
liquid to a high quality water before disthargmg to the ground
es within an arbitrary 90 cm (3 feet)
water.
age system or 1.5 in (5 feet) below
Conditions in spring and tall, when natural perched water tables
Alth codes. Obser%ations in unlined
occur At shallow depth. the different design consicirratiom than
74 showed water levels near the soil
il.. _e in summer and winter when the water table is lower. Dimen
d Almena soils for short periods of
s of the seepage t:encli should l,c properly designed its avoid
in below the sod surface for w%rr)t
.s Igor the perched water table into the fill when the ground water
Ater level differed among augerholes
s nigh and the Iota) basal area of the mound should lie sufficiently
uiy affected by small differences in
large to absorb and conduct the effluent downwards through slowly
Is were not observe) within 1.50 inpermeable
subsoil horizons when the ground water is low.
urface in summer and early fall, and
Medium sand is used As fill material within the mound. Luamy
At that time was at least 15 m (50
sands or sandy IoAms have better filtration properties than sands
cords. No water table measurements
but their potential for clogging is higher (2). Column studies have
Ilow levels are not anticipated since
indicated that sands can be very effective as filters, however, and
e precipitation as snow and effluent
., .: of medium-sized sands is therefore recommended (6).
to the soil. The required downward
'The design of a mound for a particular site involves five steps.
possible in periods without natural.
They are (i) sizing of required basal area, (ii) sizing of the absorp-
y if loading rates would not exceed
lion trenches, (iii) design of the distribution system, (iv) final
ng a perched "effluent" table.
dimensioning of the mound, and (v) sizing of the dosing, hAfflbet.
water table poses a problem that can
The basal area of a mound should be large enough for the Linder-
i? the perched water can be removed
lying soil to absorb the maximum expected daily waste water now.
the disposal system can be raised
This calculation is based on the KsAt of the lent permeable soil
rial, thereby creating an unsaturated
horizon below the proposed site for the mound. Methods for tests
ich and the seasonally high perched
to measure this parameter are reported elsewhere (2). Daily now
.lure is explored in this publication.
is estimated by using 568 liters/day (150 gallons/dAy) per bedroom
in the home served.
ORES FOR MOUNDS
The second step in the design is to size the absorption system
within the mound. The system should consist of one or a series of
mound is to provide treatment and
small parallel trenches rather than one single absorption bed con -
I in a safe and efficient manner in all
taining all the distribution laterals. Trenches Are superior than beds
, two criteria must be met: (i) con-
because they will cause A smaller rise of perched liquid in the top -
of the effluent discharged from the
soil. A standard trench width (m) of 60 cm (2 feet) is ►ecom•
of the effluent through a sufficient
mended As follows from Applying the Dupuit-Forchheimer assump.
ification before any possible human
son for horizontal now applied to the topsoil 13). Figure 3 shows
lewater.
A schematic crun•sectiun of one-half of a mound on top of a
•h these criteria. The fill below the
permeable topsoil it h11 cm resting on an "impermeable" subsoil 8
mound acts as a sand filter to purify
horizon. Infiltration of effluent from the seepage tied (I. cm/day)
ication will increase as the rill thick•
results in A rise of the ground water into the topsoil. Below the
f 60 cm 112 feet) of sand is sufficient
center of the bed. the ground -water level is equal to the depth of
o very low levels (21. Much or the
the topsoil Iho), below the edge of the beJ the level is h1. 1he
OD) and suspended solids (SS) that
calculation requires that ground water does not rise into the fill.
.f the soil pores in the underlying
Trench width (w) is calculated .is 66 cm with Eq. (1I, assuming
is important since conductivities of
/ - 5 cm/dAy; K - 40 cmlday Isre Fig. I) ho ■ 30 cm, and h i
marginal and even slight barriers to
25 cm.
•nacceptably low levels. In addition.
(hot - het) = (/ • tot112K. ill
MOUND SURFACE
) �trouNo tstul-.�
- ORIDIr1AL SOIL SURFACE
HIGH
a-wouNowarER
1 A - rtORItOM
0 - MOR1tMf
n through a niotind system used to
of the Qfsval II4141 in the mound
L.rss.sr.w tit in
• • 11.11
Mound I Sept :1
Mound 11 Sept ' 1
Hound III Aua 7.
Mound 1% "us 71
•
This analysis is approximate because (i) the subsoil 8 if nor im-
permeable. (if) the wit usually has a slight slope, and (iii) the liquid
is not applied as a steady flow but As a dose. However, calculations
do indicate the need for small seepage trenches rather than large
seepage beds. The total bottom area of the trenches is calculated
by using a liquid application rate of 5 cm/day (1.2 gallons/fern per
dav) (2). The height of the gravel-ndled trench should be at least
^I, tin (8 inchrsl to allow for sufficient liquid storage. If parallel
trenches are uses, their spacing is determined by the hydraulic
characte:istics of the underlving flibsoil. The area between the
trenches should be sufficient to absorb all the liquid contributed toy
the upilope trench, and Trenches should be lard parallel to the slope.
Ihr design of the liquid distribution system is the next step.
I he traditional %%stem using perforated 10 cm (4 inches► diameter
tape does nit provide adequate distribution over the entire adsorp
live area as is rrquired 12. 4). 'To solve this problem, pressure dis-
tnbution %%stems utilizing smaller diameter pope have Bern etc
signed. these s%%firms pnwnle uniform distribution ovri the entire
trench IHmut.m Are.t .luring rath Apphtarici 1^dust'•) if effluent
f41 [hut, .optimal use of the tandtill I% male by a%, Amg hHAI •
m erloadig nit As%"i IAttit poor purer it anon And t loa,ftrtg t o ther
delaih if three .%%iris Air torig puhlithed rl%rwhrrr
•
• Numbers in parrothe.,, ode. ale is
r Numbers in parentheses incise ate f
r Unknown quantJtrs of water from
t Hoeoruwnrr damased d"wna tank
The fourth step is the fine
this can be done an appropria
surfaec must be selected. Soi
ly perched water tables at 3
several weeks, -ereas high
Addition of 6V 2 feet) u
would create is distatice
of the absorption trenches
level. This is tie.--tinimal di
codes (8, 9). Mure important
to obtain satisfactory purifica
The depth of fill r the
termined. This should be sufl
northern Wisconsin have oper
of cover.
Side slopes should be stab
off. Slopes of 5:1 are rerun
cm to 15 cm (4 to 6 inches) c
growth of grasses needed to
filtration of precipitation.
termined the total basal area
area computed in the first st
than or equal to the Area in it
The last step in design is
filtering efftceency of the fit:
rate. Large mstantAneous app
the sand resulting in lea p
clogging. Smeller, more freq
too small and too frequent I
also lead to early clogging.
mended and the sire of the t
SECTION VIEW
PLAN VIEW
k no. 3, 1f7S
S 10.31
Record
Tax Parcels in
Combined
Exist.
Lot No. Location
Common Ownership
Dry Acre.
Use
68) Big Island
." 'y2=117-23 32 0018 ✓
0.18
SR
69) Big Island
22-117-23 31 0020 ✓
0.18.
SR
H. Subs tandard-Unbuildable Record Lot Exception.
Any new record lot resulting from future combination for ownership
and tax purposes of any two or more adjacent record lots listed in
Subparagraph B of this Subdivision with each other and/or with
another vacant or undeveloped record lot, which total dry -buildable
acreage meets or exceeds one-half (0.5) acre will be granted an
automatic lot area variance and will be recognized by the Council
as a buildable lot as if it had been listed under Subparagraph F of
this Subdivision. Each such new record lot may be used for one -
family seasonal recreational use without structures, or for a
single permitted seasonal dwelling without further Council action
or review, subject to strict compliance with all setback, hard-
cover, on -site sewage treatment and other performance standards for
development in the "RS" District, including tax parcel combination
pursuant to Subparagraph B of this Subdivision.
Subd. 7. Lot Width Requirements. Within any
Seasonal Recreational District, no new lot or parcel sha'_1 be
created less than 200 feet in width measured at the shoreline and
at the building site. No existing lot of record shall be reduced
by any lot line rearrangement to le^s than 50 feet in width
measured at the shoreline and at the bu_ ling site.
Subd. 8. Yard and Setback Requirements. Within any "RS"
Seasonal Recreational District, the following yard and setback
requirements shall be observed for all new structures and for any
addition or alteration to any existing structure, whether
temporary, seasonal or permanent:
A. Minimum setback from lakesho 4o, all structures
including decks, fences, retaining walls, wells, on -site sewage
treatment systems and land alteration of any kind: 75 feet.
B. Minimum setback from designated wetlands:
1. Wells and sewage treatment systems: 75
feet.
2. A 1 1 structures, land alteration, or
hardcover of any kind: 26 feat.
C. Minimum setback from platted street rig' f-
way, all structures: 30 feet.
property line:
D. Minimum setback from internal side or rear
ORONO CC
Q?
(4-1-84)
§ 10.31
1. All structures on lots 200 feet or more in
width: 50 feet.
2. All structures on existing record lots 100
feet or more in width but less than 200 feet in width: 30 feet.
3. All structures on existing record lots less
than 100 feet in width: 10 feet.
E. Minimum setback any building to any other: 10
feet.
Subd. 9. Lakeshore Hard Cover Regulaticns. Within 75
feet of any shoreline there shall be no excavating, filling, hard
cover, temporary or permanent structures. Within 75 to 250 feet of
the shoreline there shall be no greater than 25% hard cover.
Within 250 to 500 feet of the shoreline there shall be no greater
than 30% hard cover. Within 500 to 1,000 feet of the shoreline
there shall be no greater than 35% hard cover.
Subd. 10. Building Height. Within any "RS" Seasonal
Recreational District, no structure or building shall exceed 2-1/2
stories or 30 feet in height except as provided in Section 10.75.
Subd. 11. Building Construction Standards. Within any
"RS" Seasonal Recreational District, all new buildings or
structures, and all additions, repairs, alterations or improvements
to existing buildings or structures shall be built in strict
conformance with the current edit of the State of Minnesota
Uniform Building Code as adopted and from time -to -time amended by
the City, and with the following regulations:
A. Foundations Requi.red. All new or rf -led
seasonal dwellings or guest cabins, and all principal c ngs
shall be placed o•, a permanent frost -depth, solid mas_ .ry or
treated wood four.aa:ion that completely encloses the entire
perimeter of the building.
B. Ainim,im Dwelling Ar..�a Required. All new or
remodeled dwellings or habitable buildings shall meet or exceed the
following minimum square footage of enclosed floor area on the main
floor :
1. Tents, screenhouses or other permitted
accessory :t►uctures: no minimum area required.
2. Seasonal dwellings or quest cabins: 400
square feet.
3. 'rinciFal dwellings: 800 square feet.
C. Minimum Dwelling Width Required. All new or
remodeled dwellings or habitable buildings shall be at least 20
feet in width at the narrowest dimension.
ORONO CC 323 (4-1-84)
ADVANCE SURVEYING & ENGINEERING CO.
5811 Cedar Lake Road, Minneapolis, MN 55416
December 31, 1987
Mr. Michael P. Gaffron
Assistant Planning & Zoning Administrator
City of Orono
Post Office Box 66
Crystal Bay, Minnesota 55323
Dea Mike:
Phone 541 0500
We received your letter dated December 23, 1987 today. We
would like to clear up some misunderstandings that the
letter seems to indicate. We enumerate our responses to
correspond to the numbering in your letter:
1. We are aware that the longitudinal axis of a
typical mound system should be aligned with the contour
lines on site and that is our normal practice. The
underlying reason for this provision of the code is
that this practice gi:-s a maximum amount of ground
surface under the mound which is in the path of
downward percolating effluent (lets call that surface
the "wetable interface"). The effluent from the rock
bed percolates straight down from the rock bed until it
rraches the sand topsoil interface and then if the
underlying soil is less permeable than the sand, the
effluent will have to spread out to some extent to be
absorbed. Each drop of effluent which cznnot be
absorbed directly under the rock beds will proceed in a
downhill direction (at right angles to the underlying
contour lines) until the area wetted is sufficient to
absorb all the effluent. One goal of a mound design is
to provide the maximum "wetable interface" since if the
wetted arc« --equired to absorb the effluent exceeds the
"wetable interface" provided then hydraulic failure
will occur at the toe of the mound.
In the rather unusual case of this double moun:i, the
goal of providing the maximum "wetable interface"
best met by aligning the diagonal rather than ,e
longitudinal axis of the mound with the contour linc.6.
We enclose a diagram illustratir-4 this relationship.
This w - our motivation for the proposed alignm, and
the fact that this better fits the boundary lir: with
this alignment is a fortunate coincidence.
2. We agree that the slope under the mound is about
11.5% as your letter indica;.es. We have used a Lotus
123 spreadsheet which we created to calculate mound
quanta*ies. This worksheet is based on assumptions for
a co, ic:ial mound. In the unusual case of u double
mouna ich was dictated on this site for reasons of
very 1.,-'ted space, the worksheet is of little use in
calculating mound dimensions but it --oes calculate pump
details and rock bed areas and some other quantities
correctly. We entered such data as was necessary for
the spreadsheet to calculate those quantities that it
could. The underlying slope was not one of these
quantities so it was left as it was from the last
calculated. We then proceeded to size the mound baf:..
on space available and then used a calculator to ctit
basal area and other "custom" aspects of this deaig.
In retrospect, it would ha � been helpful if we haJ
crossed out tie portion of tae form that we didn't use
to avoid causing you confusion and a written record of
our check of basal area and mound dimensions would have
also een helpful in that regard.
We measure a "wetable interface" of 8L
square feet
wider our
mound. The acceptance rate of
the rock bed
is 1.20
gallons per day per square
foot and the
acceptance rate of the 13mpi underlying
�-).il is 0.79
gpd/ft .
Dividing these rates yields
1.52 basal
width ri,tio
and multiplying that ratio tiro-s
the rock
coed area
of. 380 square feet we obtain
a required
"wetable
interface" of 577 square feet.
This provide
about
50% overdesign but because
of possible
variati
in the percolation rates and
steepness of
some pc
,ons of the underlying rite we
felt that it
was not advisable to reduce the size of the iourd.
3. We used all percoiati-, test results for
determination of the average percolation rate which
were taken at a depth appropriate for that purpose.
Such tests are to determine the acceptance rate of the
sand s,,il interface and are taken at a depth of about a
foot. Te. is 1, 3, and 5 were taken at 14 in.jhes and
yielded rates of 21, 8, and 11 minutes per inch
respectively which averaged result in a design rate of
13 mpi.
The code also pro'4 • pies that the upper 24 inches ipon
which a mound is to be constructed have a percolet ion
rate no slower than 120 minutes per inch and 'he
maximum allowable slope is based on the percoiatio.
rate in that 24 inches. Tests 2 and 4 were taken to
check that this requirement was met and that maximum
slopes were not exceeded. The average of the 33 mpi
rate measured in Test 2 and the 11 mpi rate me-asured in
Test 4 is 22 mpi and where that average rate is faster
than 30 mpi the code provides that up tL- 12% slope is
allowable compared with the 11.5; that yo- measure from
our cor..ours.
We nol.- further that page E-8 of the On Site Sewage
Treatment Manual suggests that recent research and
analysis indicate that basal width and not slope: is the
importz consideration in such designs.
It would `eve been helpful to enumerate these tests and
show ci lation of the ave-age to avoid confusion.
.ur draftsman plotted the location of Perc. Test No.
)n the drawing and it is '�ndicated Ly a dark dot as are
.he other tests but he failed to copy the 1, from
t::e work drawing and we did not cater his omis:. u...c_.r
review of fle rather congested site plan.
We note that during an ini*ial site evaluation on a
difficult site with limited space, the ultimate
location of the treatment 1.rea ►nay not be readily
apparent. The evaluator may have tc use his best
estimate of where the treatment area may be located and
then sample in a way that gives him an overall feel for
the percoiz�! ion rotes on site so that he is n a
position to estimate the percolation rate no n.. er
where the--eatment area mar finally be placed. If
after a fi,,dl placement of the proposed mou; rea is
made, the location of the tests taken the
vEriability of the tests ai Such that test_ under
the actual mound site migt-,t produce rei.uitD so
different that they would materially affect the desi-n,
V there additional tests mould be taken. in this
ii .ance, to ten-tour basal area inadequate, we would
hav to find pv--lation rates Greater than 31 mpi
under the mound. We uidn't feel and continue to feel
that this is not at all likely in light of th- tests
3ken and thus did r-t test further.
4. We have already discussed the issue of mound
orientation but I might add that while we have
delineated the primary and alternate sites as dividing
the width of the lot half and half, in actuality, to
meet the 3 to 1 slopes specified in our typical detail
and to meet code, the primary mound would encroach into
the alternate treatment area with its downhill slope.
We note, however, that the portion of the slope that
encroached into the alternate area would not deliver
any effluent 1- that alternate area according to the
design calculations and thus would not impair its
ability to act as a future replacement site. We notice
also that to achieve a 3 to 1 slope, the southwest
slope on the end of the mound should extend further
than shown and would encroach into the required 10 foot
se'_5ack and perhaps a bit beyond. That boundary line
is however with a street which has never been improved
and used and has no prospects for improvement that we
know of. Our drawings could be improved to correctly
show those toe of slope conditions.
Since their is no current proposal to build on the lot
and the proposed home shown is only a concept at this
time, no well location was shown but it probably would
have been better to indicate a possible location that
could have been adjusted if necessary when house
location became known.
Gene Mullenmeister of our cf:ice who discussed the issue of
setbacks with you as you mentioned in your letter was led to
believe that the City :night be less concerned about a
variance from the requirement for setback from the pond than
from the lake and this is what has led to this proposed
design. If the City is not willing to grant such a
variance, then now is the time to say so.
We would also like to make clear the nature of the services
that we provide for our clients. Your letter leaves the
impression that we somehow guarantee that for fees charged
we will find an acceptable on site system design. That is
not the case. There are sites on which it is not possible
to design a system and meet code requirements. There are
also provisions of the code which are subject to
interpretation and, are in our experience, have been
interpreted differently by different building officials.
While we are willing to spend our best efforts to find a
system that meets our clients needs and the code and for
which he can secure approval, it is made clear at the outset
of relations with a client that there is no guarantee that
we will be successful in designing a systen that will be
approved. We urge them to seek written governmental
approval before making decisions regarding the use or
potential use of their land. Since we cannot know the minds
of government officials, nor know the characteristics of a
site until we evaluate it, we know of no other way to
proceed. In this process we do not wish to persuade the
government to put at risk the publics rights to
environmental protection and the homeowner's right to expect
a properly functioning disposal system nor do we wish to see
the government arbitrarily deny the use and enjoyment of
property rights to that same public by interpretations of
the codes which are not in line with the underlying intent
of the codes and which may render the site unbuildable.
We continue to feel that our design represents a good
response to the conditions on site but would welcome
suggestions for improvement. We don't see that reorienting
is necessary or desirable but would like to heai- your
comments on our reasoning in that regard. We do feel that
we should improve the documentation of our ca1c,.ations so
that you can more easily follow our design calcul ions. We
also feel that an in house check list to catch minor
omissions may be useful.
One possible avenue to a solution that occurs to us is that
if the uphill slopes of the mound which do not receive any
effluent were allowed to encroach in to the required
setbacks and the width available for construction of the
proposed home were reduced to 26 feet, we could move the
s,-•stem so that the 75 foot setback from the pond could be
met. When Gene discussed these setback requirements with
you, yr,i indicated that this was not your normal practice,
b'It w4- ,gest it aF a variance that may make more sense
than vic, ating the 7 ) setback.
We feel that a cooperative rather than a confrontational
attitude is desirable between inspectors and designers and
that a telephone call and a question regarding aspects of a
design may lead to a pooling of ideas to solve difficult
design problems or to decide that they cannot be solved. On
this site and on past sites in your city, we have noticed
that a lack of communication has led to misunderstanding on
,oth of our parts and we would like to join you in an eff rt
to improve that communication.
I un tand from ;.obert Posthumus, th-it he will be
contacting you on Monday to set up a meeting between the
three of us to resolve this matter. when and if we find a
solution for the site we will update our plan accordingly.
Sincerely,
ADVANCE SURVEYING & ENGINEERING CO.
�cw� r � • � J _ _
ames H. Parker P.E. & L.S., President
inn Lic. No. 9235 PCA No. 208
Lyle uman, Field Inspector
Thomas J. Jacobs, building Official
Mark E. Bernhardson, City Administrator
Clarence Manke, MPCA, Operations and 'Training Unit
ISTS Advisory Committee c/o [-. Roger E. Machmeier
Robert Posthumus
CITY of ORONO
Post Office box 66•Crystal flay, Minnesota !'"I'l;1•Municipal Officer+
On the North Shorr o/ Lake Minnetonka
January 14. 1988
Robert Posthumus
242A Natches
Lakeville, MN 55044
Rt: Lots 58 and 59, Morse Island Park - St ,tic Concerns
Dear Mr. Posthumus:
I have further reviewed the site plan and septic system design for the
property on Big Island. In addition, I have discussed various concerns
about the system design and layout with Dr. Roger Machmeier of the
University of Minnesota Agricultural :xtension Service. Dr. Machmeier is a
nationally recognized authority on septic systems and is likely the most
knowledgable individual in the State of Minnesota regarding the design of
such systems for residential usage.
Based on his comments ana a further review of the pertinent
ordinances, I would make the following comments and determinations:
1. The proposed sign is not acceptab_ as -is because the r ck beds
are skewed in relation to the contours and therefore the assimptions
used in creating that configuration are not valid. Mr. Parker used a
literal interpretation of the codes to create this design but it does
not in my opinion fit within the design perameters generally accepted
within the industry.
2. If this system had been located in the portion of the property
containing a percolation test, and if that percolation test had been
equivalent to perc test #5 at 11 minutes per inch, the basal width
perpendicular to the contour lines would be defined as approximately
25' with an additional downslcpe area of 12' required in addition to
the approximately 20' downhill area required to maintain the necessary
4:1 slope for maintenance purposes. That would have put the ultimate
boundaries of the system outside of your property boundaries.
3. Given that it was determined that the proposed system would not be
acceptable, I then layed out the necessary constraining setbacks for
this property to determine if there was any chance that the property
could contain a well, a residence structure and a primary and
alternate drainfield si`e, given the need for mound systems due to a
seasonal perched water table. The limiting criteria are as follows:
a) For the structure, setbacks on this lot are 75' from the
lake, 30' from either side and 30' from the rear lot line.
RI'II-DING A 2ONvING - 473-7337 • ADMINISTRA71 )N t FINANCE -- 473.7358 • NI NI I( %( IRKS - 4737339
AWSSINI
Robert Posthumus, Lots 58 6 59, Morse Islam'. Park
January 19, 1988
Page 2 of 3
b) For the mound systems, the setbacks are 75' from the lake,
75' from the pond, 20' from any structure, 75' from any well.
c) For the well, the required setbacks are 75' from the lake, 5'
from the property line, 3' from any portion of the house or
overhang, 75' from any portion of the drainfieid system, and 50'
from the septic tanks (note that the State of Minnesota Standards
allow the we 1 1. to be 50' from the shoreline and 50' from any
portion of the septic system or tanks).
4. riving drawn a 1 1 of those constraints onto a copy of your proposed
site plan, with your proposed house location and size, in my opinion
the required primary and alternative sites cannot be fitted within the
property bcundaries.
5. However, it is also my opinion that with a number of variances and
careful site planning, perhaps in addition to a reduction in the size
of the proposed house, this lot may in fact be suitable as a building
site. The revisions that I see being potentially feasible are as
follows:
a) Place the well at a location 5 -rom the southern side lot
line and 50' from the lakeshore (thi requires a conditional use
permit and variance approval from the City Council).
b) Move the house nearjr to the southeasterly lot line to a
point as near as 10' from that lot line (this also requires a
variance approval from the City Council).
c) Reduce tae footprint area of the structure so that setbacks
of 20' from the mound systems can be maintained.
The designated primary and alternate drainfield sites then would
be on the flat portion of the top of the hill, and near the base of
the hill near the lot corner as shown on the attached conceptual
diagram. Based on my .1iscussion with Dr. Machmeier, the point from
which mound 6ystem setbacks are measured would be defined by the
required banal dimensions of the mound systems (i.e. for the primary
site on top of the hill for a 21 minute per inch perc rate and slopes
of less than 3%, the defined edge of the treatment area is 5' outside
of the rock bed, and we would still expect to see a 10' side lot line
setback and 20' house setback from that boundary). Also, for the
alternate site downhi , which because of a steeper slope and faster
perc rate has a defined treatment area underneath and downhi 1 1 from
the rock bed, we would again expect that the 10' property line setback
be maintained along with the 20' house setback. These are also shown
on the attached diagram. This configuration would appear to meet the
required setbacks from property lines and from the lakeshore and the
pond. In this configuration we would allow addition of fill materials
outside the designated treatment area up to the lot lines (but not
outside them).
Robert Posthumus, Lots 58 6 59, Morse Island Park
January 19, 1988
Page 3 of 3
6. Under this configuration it might still be feasible to construct a
lake home on the property without a side setback variance, but it
would restrict the size of that home to approximately 1/2 of what you
have proposed. It would not aF_ear feasible to locate the well a
distance 75' from the lake and still meet the .-)' setback from sewage
systems, hence under this configuration the conditio. 1 use permit to
place the well in the G-75' setback zone is still necessary.
Given the above concerns, comments and determinations, if you propose
to construe a lake home on this property, you would appear to have two
options:
A) Construct the lake home with no plumbing and less than 800 s.f. in
floor area, and construct an outhouse meeting all pertinent code
standards.
B) Apply for the necessary variances and conditional us^ permit to
construct your residence near the lot line in a somewhat smaller
envelope than originally proposed, and locate the well 50' from the
lakeshore.
I will be pleased to meet with you again to discuss this property.
Please feel free to call me at 473-7357 if you have any questions.
Sincerel�, j /
Michael P. G Iron,
Asst Plannin i Zoning Administrator
MPG/tln
To: Jeanne A. Mabusth, Building & Zoning Administrator
From: Michael P. Gaffron, Asst Planning & Zoning Administrator
Da.:e: February 8, 1988 (The 78th Aniversary of the Founding of the Boy
Scouts)
Subject: #1247 Robert Po --humus, Big Island Record Lot 40
This application results from the applicant's attempt to creat+r an
acceptable site plan for a property on Big Island. He h.-% the appropriate
survey with topography and septic testing comple,A by Adva,sce Engineering.
They proposed a house location and septic system design which, taken
together, were not feasible in staff's opinion. After having reviewed the
septic design with Dr. Machmeier at the University Extension Service, it
was determined that the initially proposed design was not suitable. After
meeting with the applicant and his engineer, I put together a potentially
feasible site plan with appropriately designed mound systems and a cabin
location requiring a side setback variance. On Big Island, because this
lot exceeds 100' in width, the required side setback is 30' However, you
will recall that on any lot on Big Island less than 100' in width, only a
10' mid-- setback is required. Applicant is requesting to use a 10' side
setback which I would not have a problem with. The other variance and
conditional use permit applied for is to locate a well 50' from the Lake-
shore instead of the required 75'. The variance is to allow structure and
excavation work in the 0-75' zone, the conditional use permit is required
for the grading work in the 0-75' zone.
Please refer to my letter to Robert Posthumus dated January 19, 1988,
with the attached diagram showing the proposal and feel free to discuss
with me any questions you might have regarding that application.
To: Planning Commission Chairman Kelley
Orono Planning Commission Members
City Administrator Bernhardson
From: Thomas J. Jacobs, Senior Building Inspector
Date: February 11, 1988
Subject: 11247 Robert Posthumus, Big Island - Record Lot 40
Variences - Public Hearing
List of Bxhibits
Exhibit A - Application
Exhibit B - Property Owners Liat
Exhibit C - Plat Map
Exhibit D - Notice of Public Hearing
Exhibit E - Proposed Site Plan
Exhibit F - Revised Site Plan
Exhibit G - Mike Gaffron's Letter Dated 1/19/88
Exhibit H - Hardcover Results
Exhibit I - Amended Survey/Site Plan
Zoning District - RS
Application - Applicant is proposing to construct a 3-bedroom lake home on
Big Island. Approximate size of the structure is 32'x48' or 1,536
s.f. Applicant is requesting a variance to the side setback, well
location within 75' of lake, and conditional use permit. Applicant's
first proposal (Exhibit E) was reviewed by staff and found to be not
acceptable (see Exhibit G). Therefore, an alternate plan was
discussed which addressed the concerns of Mike Gaffron's letter dated
1/19/88 (Exhibit G). The variances requested are as follows:
1) Side Setback:
Required - 30,
Proposed = 10'
Variance - 20' or 66%
2) Well Location Within 75' of Lakeshore:
Required. 75,
Propos p,l 50'
Variance 25' or 33%
3) Conditional Use Permit - to install well within 75' of lake.
Pertinent Code Sections -
Conditional Use Permit required - Section 10.03, Subdivision 19
Side Setback Variance - Section 10.31, Subdivision 8 (D)(2)
Well Within 75' of Lakeshore - Section 10.31, Subdivision 8 (A)
Review of Conditional Use Permit -
This permit is required due to excavation within 75' of the lakeshore.
Staff recommends you approve the conditional use permit if variance for
well location is approved.
Zoning File #1247
February 11, 1988
Page 2 of 2
Review of variance - Well Location -
Required = 75' from lakeshore
Proposed = 50'
Variance = 25' or 30%
During staff's review of the proposed project, considerable research
was done on the location of the septic system (Exhibit F). It was found
that the location would be best on the west and south sides of the lot
(Exhibit F). Orono Ordinance requires that well locations not be closer
than 75' from the sewage disposal system, therefore, the proposed location
is the only acceptable location.
Side Setback Variance:
Required = 30'
Proposed = 10'
Variance = 20' or 66%
As per the well location variance, the location of the structure was
also affected by the septic system location. It is felt by staff that by
moving the septic system to the proposed location (Exhibit F), less of a
hazard to the lake wi 11 be created, and the proposed plan wi 11 not create a
hardcover problem (Exhib.,t H).
Staff Recommendation -
Staff recommends approval of a conditional use permit and variances
subject to the following fi:,dings:
1. No other land is available.
2. Topography restricts the location of the septic system to the
proposed location.
3. Location of septic system restricts the location of the well and
lake home.
Approval is based on the following conditions:
1. A new certificate of survey with proposed location of lake home,
well and septic system as shown must be submitted.
2. New sewage disposal system testing must be provided and approved
by staff.
Additional Cos nts and Planning Coiission Recoss endation -
March 23, 1988
Page 3 of 3
Planning Commission unanimously approved the conditional use permit
and variances required to allow construction of the seasonal residence on
the subject property, Record Lot #40, Big Island. Applicant has already
provided the amended survey, review Exhibit I, and the new sewage disposal
system test information. Planning Commission accepted the new information
submitted with the second review and based their approving recommendation
on the hardships and findings cited in the staff recommendation noted
above.
The enclosed resolution has been drafted per the approving
recommendation of the Planning Commissio::.
MINUTES OF THE PLANNING COMMISSION MEETING HELD FEBRUARY 16, 1988
#1247 ROBERT POSTHUMUS
RECORD LOT 40 - BIG ISLAND
VARIANCES
PUBLIC HEARING 9:06-9:06
The Affidavit of Publication and Certificate of Mailing
were noted.
DISCUSSION
Robert Posthumus was not present for thin matter.
There were no comments from the public regarding this
matter.
It was moved by Kelley, seconded by Cohen, to table
Application 41247 until applicant or representative was
present. Motion, Ayes 6, Nays 0.
Bellows reported on the status of the City facilities
study and recommended that the Planning Commission
become actively involved with the site analysis of the
study.
Mabusth and Bellows also relayed a suggestion from the
last Council meeting that a subcommittee be formed to
review zoning amendments. They recommended that this
committee be limited to 5 members possibly consisting of
a C uncilmember, Planning Commission member(s), Park
Commission member., i nd staff member.
APPROVAL OF MINUTES
It was moved by Ke 11 !y, seconded by Hanson, to approve
the Minutes of the Janaury 27, 1988 Planning Commission
meeting as submitted.
PLANKING COMMISSION REPRESENTATIVE
Cohen was appointed to attend the March 14, 1988 Council
meeting.
ADJOURNMENT 9:15 P.M.
The Planning Commission meeting adjourned at 9:15 P.M.
10
TO: Planning Commission Chairm-.r Kelley
Planning Commission Memners
City Administrator Bernhardson
FROM: Thomas J. Jacobs, Building Official
Oi1TE: March 14, 1988
30BJ: #1247 Robert Posthumus, Big Island - Record Lot 40 -
Conditional Use Permit/Variance
Application was tabled at the last Planning Commission meeting on
2-16-88 beause no one appeared on the applicant's behalf.
The application has not changed - new information submitted is as
follows:
1. Proposed Site Plan
2. On -Site Septic Design
01 MINUTES OF THE PLANNING COMMISSION MEETING HELD MARCH 21, 1988
i1233 MICHAEL HALLEY HOMES CONTINUED
Chairman Kelley stated he is in favor of restoring the
retaining walls but oppc.:-d to allowing the drainage
pipe.
Johnson agreed that the pipe wot!ld not have a
significant impact and would support the proposal.
Brown agreed with Kelley finding it would be setting a
precedent by allowing a drainage pipe.
It was moved by Chairman Kelley, seconded by Bellows, to
recommend denial of the CUP/variance for the drainage
pipe within the 75' lakeshore; and recommend approval of
the CUP/variance to reconstruct the retaining walls
within the 75' lakeshore subject to no additional
hardcover incurred by retaining walls.
Johnson felt that the revised plan was a much better
plan than originally submitted. He suggested that
applicant could direct the drainage to the rear of the
house instead of directly to the lake.
Mabusth agreed suggesting the wetland area.
Mr. Kollmeyer stated that the wetland is outside of the
property.
Chairman Kelley stated he did not feel this was a good
design for the property because eventually grading of
the the lakeshore bank would be desired.
Motion, Ayes 3, Nays 1. Johnson voted nay. Motion
carried.
�1247 ROBERT POSTHUMUS
LOT NO. 40 - BIG ISLAND
VARIANCE
SWORD REV I M
Applicant was not present for this matter.
Jacobs explained the request for a side setback variance
to construct a lake home; and a variance and conditional
use peridit to install a well within 75' of the
lakeshore. It was noted that the restricted septic site
affects the well and house location, therefore
requiring the need for the variances and conditional use
permit. The hardships being the lot size and septic
location.
9
MINUTES OF THE PLANNING COMMISSION MEETING HELD MARCH 21, 1988
f1247 POSTHUMUS CONTINUED
Gaffron explained that there are many record lots on Big
Island that were granted the right to use the property
for seasonal use, many of which are substandard and
required variances.
There were no comments from the public.
It was moved by Chairman Kelley, seconded by Johnson, to
recommend approval as proposed per staff's findings and
conditions. Motion, Ayes 4, Nays 0.
#1248 THOMAS WILLIAMS
4127 OAK STREET
VARIANCES
PUBLIC HEARING 8:51-8:57
The Affidavit of Publication and Certificate of Mailing
were noted.
Thomas Williams was prese- for this matter.
Mabusth explained the request for a lot area and lot
width variance for an undeveloped 3 lot parcel. Staff
finds no problem with the building envelope as indicated
on the plan.
Chairman Kelley stated he would like to see Lots 1 i 2,
Block 5 combined with Lot 1, Block 4, including the
vacation of Ridge Place between the lots.
Charles Hommeyer, 4125 Oak Street, was opposed to
vacating Ridge Place because it would eliminate the need
to adhere to the 35' road setback requirement, and allow
a larger building envelope for that lot.
Mabusth noted that because of the existence of the sewer
pipes, she did not feel the City would consider vacating
Ridge Place.
There were no other comments from the public and the
public hearing was closed.
It was moved by Chairman Kelley, seconded by Johnson, to
recommend approval of the lot area and lot width
variances per staff recoomendation, subject to the
condition that the building envelope as described on the
plan being maintained.
Mr. Hommeyer asked about the status of upgrading Oak
Street because of the addition of a fourth residence to
be served by this private road.
10
ZONING FILE NO. 1247
CITY OF ORONO NOTICE OF PLANNING COMMISSION ACTION
P.O. Box 66
Crystal Bay, MN 55323 473-7357 Date of Notice: 3/22/88
---------------------------------------------------------------------------
TO: Robert Posthumus COPIES TO: Fred A. Bruntjen
24200 Natchez Avenue 5135 Morton Street
Lakeville, MN 55044 Edina, MN 55436
TYPE OF APPLICATION: Variances/Conditional Use Permit
-----------------------------------------------------------
DATE OF MEETING: 3/21/88 VOTE: 4 For Against
Planning Commission recossends the following:
XX Approval as amended.
NOTES AND SPECIAL CONDITIONS:
Please review the enclosed approving resolution tha* 1. be presented
for formal action by the Council at their March 28, 198.. m Ang. If you
have any questions, pler contact my office.
-04�
5428710
City of ORONO
1 kANSFER ENTERED
RESOLUTION OF THE CITY COUNCIL„
NO. -, 36
A RESOLUTION GRANTING
VARIANCES TO
MUNICIPAL ZONING CODE
SECTION 10.31, SUBDIVISION a (C)
AND CONDITIONAL USE PERMIT
MUNICIPAL ZONING CODE
SECTION 10.03, SUBDIVISION
FILE #1247
)UL 7 ]W
►+t. &LON Cv'JNry MINN
AND (D)(2)
PER
19
WHEREAS, per Section 10.31, Subdivision 6 (F), Robert Posthumus
(hereinafter "the applicant") having an interest in the property
indentified as Big Island Record I.ot #40 within the City of Orono
(hereinafter "City") has filed a building permit application for the
proposed construction of a 3-bedroom, seasonal dwelling of approximately
1,536 s.f. in area, an approved use, on the property legally described as
Lots 58 and 59, Morse Island Park, Hennepin County, Minnesota (hereinafter
"the property"); and
WHEREAS, the applicant has been required to file a land use
application with the City that would seek approval of a side setback
variance for the seasonal dwelling of 20' or 66% where Section 10.31,
Subdivision 8 (D)(2) requires a 30' setback, a setback variance of 25' or
33% for the well where Section 10.31, Subdivisic•r- 8 (A) would require a 75'
setback from the lake, and per Section 10.03, Subdivision 19 a conditional
use permit is required for land alterations within the 75' lakeshore
protected area.
Minnesota:
NOW, THEREFORE, BE IT RESOLVED by the City Council of Orono,
FINDINGS
1. This application was reviewed as ','oning File #1247.
2. The property is located in the RS, Seasonal Recreational Zoning
District.
3. The property is approximately .54 acres in area, and per Section
10.31, Subdivision 6 (F) approved on January 13, 1983, the property
was classified as a substandard -buildable record lot and was granted a
permanent lot area variance and recognized by the City Council as a
buildable lot. The property is approved for a single seasonal
dwelling.
4. The Orono Planning Commission reviewed this application on March
21, 1988, and recommended approval of the proposed variances and
conditioral use permit based on the following findings and hardships:
Page 1 of 4
.'0. r
City of ORONO
RESOLUTION OF THE CITY COUNCIL
NO. 2 386
A) There are no additional adjacent lands available.
B) Topograr'►y restricts the location of the mound septic system
to the more gradual gentle elevations at the proposed location.
C) The required location of the septic system and the depth of
the lot place severe restrictions on the location of the well and
the seasonal dwelling.
D) The proposal appears consistent with thF current pattern of
development of undeveloped properties on Big Island.
5. The City Council finds that the conditions existing on this pro-
perty are peculiar to it and do not apply generally to other property
in this zoning district; that granting the variances would not
adversely affect nor impact light, air nor pose a fire hazard or other
danger to neighboring properties; would not merely serve as a
convenience to the applicant, but is necessary to alleviate a demon-
strable hardship or difficulty; is necessary to preserve a substantial
property right of the applicant; and would be in keeping with the
spirit and intent of the Zoning Code and Comprehensive Plan of the
City.
6. Tne City Council finds that granting a conditional use permit to
allow the installation of the well at the proposed location will not
be detrimental to the health, safety or general welfare of the public,
would not adversely affect light, air nor pose a fire hazard or other
danger to neighboring properties, nor will it depreciate surrounding
property values and that the proposed le•tel of use of the property
will be in keeping with the intent and objectives of the Zoning Code
and Comprehensive Plan of the City.
CONCIXSIONS, ORDRR AND CONDITIONS
Based upon one or more of the above findings, the Orono City
Council hereby grants variances to Municipal Zoning Code Section 10.31,
Subdivision 8 (C) and (D)(2) to allow the seasonal dwelling to be
constructed 10' from the side or internal lot line and the well 50' from
the lakeshore and grants a conditional use permit per Section 10.03,
Subdivision 19 to allow the installation of the well within the 75'
lakeshore protected area, subject to the following conditions:
1. Authorities granted by this resolution
with the applicant, but are permissive only
application for a building permit within
Council approval, or the special conditions
expire on that date (March 28, 1989).
run with the property not
and must be exercised by
one year of the date of
of this resolution will
Page 2 of 4
City of ORONO
RESOLUTION OF THE CITY COUNCIL
NO. _2386
2. Violation of or non-compliance with any of the terms and condi-
tions of this resolution shall constitute a violation of the zoning
code, shall automatically terminate any authority granted herein, and
shall be punishable as a misdemeanor.
3. The undersigned applicant has read, understood and hereby agrees
to the terms of this resolution and on behalf of himself, his heirs,
successors and assigns, hereby agrees to the recording of this
resolution in the chain of title of the property.
19 8 I�.
.c
ATTESTS
Adopted by the Orono City Council on this 28th day of March,
James- R. Grabek n, Jyor
Edward J. Cal a`r., Acting Mayor
Page 3 of. 4
cite of ORONO
RESOLUTION OF THE CITY COUNCIL
NO. 2 386
STATE OF MINNESOTA
ss.
COUNTY OF HENNEPIN )
On this day of _ _ 198f
before me a Ndr P bl;ic wit i a f r s d co}�nty, personally
appeared J
known to me be the p son(s) described in and who executed the
foregoing- strument,L,nd acknowledged that he (they) executed
the same as his (their) free act and deed.
I �
i
� � l
churlucre :1 Kpiza,w, NOTARY PUBLIC
NOTARY PUBLIC . MINNESOTA
HENNEPIN COUNT)
1A�r awftoon r-ib a
MY COMMISSION EXPIRES
STATE OF MINNESOTA
)ss.
COUNTY OF HENNEPIN )
On this day of _ 1985 , before me
a Notary P! blic- with �'yn and for sAid County, personally appeared
1) il'? 40, - r ' Q t %t l(tll Z ,- known to me to be the
person(g) escribed in and who executed the foregoing instrument,
and acknowledged that he (they) executed the same as his
(their) free act and deed.
/! 1, ll,(Jt
NOTARY PUBLIC
-k SANDRA L. STEADMAN
Ne)TMV /USUC — IWMESOT'
DAKOTA COUNTY
My Conwi@W Ej*bw SdpL ')
i 9c.
MY CONNISS•IN EXPIRES
Paqe 4 of 4
STATE OF MINNESOTA
as.
COUNTY OF HENNEPIN
City of OR ONO
RESOLUTION OF THE CITY COUNCIL
NO. _-' �'3v•
On this ,mil" ' day of L ��.�_ , 198,,%
before me a Notary Public within and for said coup,--... personally
appeared It-4 /1 4", known to me to be
the person(s) described in an -a who executed the foregoing
instrument, and acknowledged that he (they) executed the same as
his (their) free act and deed.
Paineia L. PNe rwn
NpTARY PUBLIC MINNL9OTA
MEN 1!9 My comnWIM 69w@NT ' f'
STATE OF MINNESOTA )
)as.
COUNTY OF HENNEPIN )
NOTARY PUBLIC
MY COMMISSION EXPIRES
On this day of , 198, before me
a Notary Public within and for said County, personally appeared
known to me to be the
person(s) described in and who executed the foregoing instrument,
and acknowledged that he (they) executed the same as his
(their) free act and deed.
NOTARY PUBLIC
MY COMMISSION EXPIRES
STATE OF MINNESOTA )
COUNTY OF HENNEPIN )
CITY OF ORONO )
I Dorothy M. Hallin, City Clerk of the City of Orono, Hennepin
County. Minnesota, do hereby certify that I have compared the
foregoing copy of a resolution of the City Council of the City of Orono
with the original record of such resolution in the Minutes of the
proceedings of said City Council at a meeting of said City Council held
on March 28th , 19�- , and that the same is a true
and correct copy of said resolution was duly adopted by said City
Council at said meeting.
In Witness Whereof, I have hereunto set my hand and seal this
1 ;th , day of pi 1 1 , 19 Su
1
thy M. lin, City Clerk
1
(SEAL
p
,s. • j
1
�
r
_+r-a
ti
I"
v
MINUTES OF THE K!.%ULAR ORONO COUNCIL MFETING HELD MARCH 28, 1988
11247 ROBERT POSTHUMUS
BIG ISLAND - RECORD LOT #40
VARIANCES/CONDITIONAL USE PERMIT
RESOLUTION #2386
Robert Posthumus was present for this matter.
City Administrator Bernhardson explained the request for
construction of a seasonal lake home on Big Island. The
request involves a side setback variance in order to
accomodate the septic site location; and variance and
conditional use permit to construct a well within 75' of
the lakeshore.
It was moved by Acting Mayor Callahan, seconded by
Councilmember Peterson, to adopt Resolution #2386
approving the request per staff recommendation. Motion,
Ayes 4, Nays 0.
#1248 THOMAS WILLIAMS
4127 OAK STREET
RSHSNAL VARIANCES
RESOLUTION #2387
Thomas Williams was present for this matter.
City Administrator Bernhardson explained the request for
a lot area and lot width variance which were previously
approved in 1969 and 1979. He noted that there is a
parcel that is separated from the main lot area that
cannnot be credited to the lot area and it might be
appropriate to do a special lot combination. The other
issue is that the property is served by a driveway
located within an unimproved public right-of-way.
Mr. i Mrs. Chuck Hommeyer, 4125 Oak Street, were present
and had no objection to the proposal as presented.
It was moved by Councilmember Sime, seconded by
Councilmember Goetten, to adopt Resolution #2387
approving the lot area and lot width variances.
Councilmember Goetten asked at what point does the City
start taking responsibility for the street?
City Attorney Barrett stated that there was no fixed
time to which the City must change the current process
of maintaining the street.
City Administrator Bernhardson explained that staff has
not yet developed criteria to determine the point at
which a private road must become a public road.
Usually this issue is addressed during a proposed
subdivision.
6
7.ONING FILE NO. 1247
CITY OF ORONO NOTICE OF COUNCIL, ACTION
P.O. Box 66
Crystal Bay, MN 55323 473-7357 Date of Notice: 3/31/88
---------------------------------------------------------------------------
TO: Robert Posthumus COPIES TO: Fred A. Bruntjen
24200 Natchez Avenue 5135 Morton Street
Lakeville, MN 55044 Edina, MN 55436
----------------------------------------------------------------------------
TYPE OF APPLICATION: Variances/Conditional Use Permit
-----------------------------------------------------------------------------
DATE OF 14ERTING: 3/28/88 VOTE: 4 For Against
COUNCIL ACTION - MOTION:
To approve per the findings and condition- of the resolution
previously mailed to you.
Please arrange to sign the 3 original resolution copies at the City
Offices (Monday through Friday, 8:00 to 4:30). All persons with an
interest in the property must sign the resolutions.
Variance Approval is limited to the extent shown on approved plan and
as noted in the approval resolution. Changes in approved plans are subject
to further review by the City. Variance approval expires one year after
date of approval. Permit application must be submitted no later than
March 28, 1989.
1
POPHAM. HAIK.SCHNOBRICH 6 KAUFMAN, LTD.
3300 PIPER JAFFRAY TOWER
MINNEAPOLIS. MINNESOTA 55402
WArNC O. POPHAM
RAYMOND A. MAIM
JAMES A. PAYNE
DAVID A JONES
TELEPHONE
O. RANDALL @OVER
GREGORY O. SCOTT
ROOER W,fCHNOSRICH
Lee [.SHEENY
618-]]]-4SOO
sRIAN N. JOHNSON
ROSANNE O. ZAID[NW(SCp
O[NV[R KAUFMAN
AKIN iR(COH
T[l[GOPICR
TIMOTHY W MUCK
ROSERT C. CASTLE•
ROBERT A.MINISM
LESLIE GILLETTE
1331018-]]♦-IP71]
CAROL S. SWANSON
THERESE M. HANKEL
WOMDENAD
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JULIC iLEMINO-WOLFE
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WHITCME
ROSERT M. YNN
132' SIIP-]].-IP7Sl
JULIE A. SWEITZER
DE9ORAM A. DYSON
UCRC
RUG( O.K LLIS
rOBERTHOMAS M. SOP
1]11 SIIP -]]�-250]
THOMA$ C. MICLENNAUSEN
ZACMCRY M. JONES
r S. OS
O-LANS
ROS[R7 C MOILANEH
041CHAEL O.CMPISTENSON
SCNSON K. WHITNEY
a ROBERT O NSON
O. POSCpT JONMSON
THOMAS F. NCLSON
J.MICMAEL SCHWARTZ
KATMRrN M. WALKER
GARY R. MACOMBER
THOMAS J RADIO
SUITE IP♦00
TOD0 /d. JONNSON
OEOROC J. SOCMA
ROSE RT f. UNKEURK
L. M
J[FFRCY •. CAIRNS
SNAN[ R. K[LLCr
III
MUG" V.CK
KAVID
N M ART
LCEC MARTIN
1200 SEVENTEENTH STREET
LOUIS P. SMITH
SUSAN M. WETS
r
i CK C BROT.WN
SwOWN
JOH IL
CMILOS
DENV(R. COLORAOO 00208
SRUCE N. LITTLE
MARK F. TCM EYCK
MOMAS
rMOMAf K. DIE No
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DOUG A
DOUOLAs P.SE ATQN
TELEPHONE ]O ]-•s]-iIP00
MARK F PALMA
DUANE R. NOeCKER
JAMES R. fTCll[H
TMOMA6 [. SANN[R
T[LECO.ICR 303-003-2194
RRYAN LL S SSA
JAMES s LOCKHART
PIC-APO A. KAPLAN
WFO
SwrAN L CRAW FARO
AILEN W. MINDC RAKER
sauce s. MItPMEETERS
SUITE 300 SOUTH
MArrM[W E. OAMON
CLIFFORO M. GREENC
SCOTT ( RICHTER
1000 M STREET. N. W.
JOHN W PROW
ELLEN SU[ PARKER
OF COUNf[L
O. WILLIAM KAUFMAN
PAUL J LINSTROTM
WADMINOTQ N, O. C. j00�6
Ows OORr O. @ROOMER
/w[O L.MORRIf ON
MICMAEL O. FREEMAN
MOWARD SAMr[pf,11I
M
SCOTT A. SM•TN
DONAID M. l[W'l
TELEPHONE &OR SIPS-S300
WILLIAM M. OJIL[. JR.
LARRY O. Cf PCI
[LIZAS ETM A TMOM►SUN
TC LCCO.1(R IPO2-sIPS -f]IS
TERRANCE A. COSTELLO
JANIC S. MArC RON
K�I�H J.HALLCLANO
DIRECT DIAL NUMBER
JOf (PH D. VAf!
SPIAN W.OHM
•AOMITT(D
TMOMAS J.SARRErT
MARK @.PETERSON
I N IDWIL
STEVEN A. CME"SNIK
•ADMIrTeD I w Iu�NOI•
(612) 334-2549
July 20, 1988
Ms. Jeanne Mabusth
CITY OF ORONO
P. O. Box 66
Crystal Bay, MN 55323
Dear Jeanne:
Enclosed and listed below are documents which have been
filed in abstract property with the County Recorder and returned.
Name Res. No. Doc. No. Date Filed
Robert Posthumus 2386 5428710 July 7, 1988
Rollin Lacy
2406 5428708 July 7, 1988
William Odden 2426 5428709 July 7, 1988
If you have any que•,tions, please feel free to call either
me or my secretary, Pauli Van De Laarschot (334-2656).
Very truly yours,
Nancy E. Husnik /-"
Legal Assistant
PLV/4992j
Encs.