2014-78CITY OF CHANHASSEN
CARVER AND HENNEPIN COUNTIES, MINNESOTA
DATE: November 24, 2014
MOTION BY: Ernst
RESOLUTION NO: 2014 -78
SECONDED BY: McDonald
A RESOLUTION APPROVING A METES AND BOUNDS SUBDIVISION
CREATING TWO PARCELS
AT 2061 WEST 65TH STREET
WHEREAS, John J and Kimberly E. Corey have requested a subdivision of the property
into two lots of 15,165 square feet and 15,159 square feet, and
WHEREAS, the Chanhassen City Council held a public hearing on November 24, 2014,
and found the plan consistent with the Chanhassen Comprehensive Plan and Zoning ordinance
NOW, THEREFORE, BE IT RESOLVED that the Chanhassen City Council hereby
approves the metes and bounds subdivision of 2061 West 65 rd Street (Planning Case #2014 -30)
for John J and Kimberly E. Corey for property legally described as Lot 3, Block 2, Moline's
Addition, Carver County, Minnesota, subject to the following conditions.
Buildma
The existing structure on proposed Parcel 2 must be provided with sanitary sewer connection
— permit required
2 Properties must be provided with separate sewer and water services
3 Existing Subsurface Sewage Treatment Site on proposed Parcel 1 must be properly
discontinued and abandoned — permit required
Engineermg
The City Attorney shall draft and the developer shall execute a "Grant of Permanent
Easement for Public Drainage and Utility Purposes" document This document shall be
recorded with the metes and bounds subdivision.
2. A roadway, drainage and utility easement must be dedicated over the portion of the existing
cul -de -sac within the property and 15 feet beyond the edge of the road
3. Prior to recording the subdivision the developer shall pay the $45 GIS fee. $25 (subdivision)
plus $10 /parcel.
4 Prior to recording the subdivision a $10,000 security must be provided to ensure that the
street is restored The security can be released when the city determines that the patch is in
good condition after one freeze -thaw cycle
Sewer and water hookup charges are due for the new lot, a portion of which shall be collected
before the metes and bounds subdivision is recorded-
Water- 1 unit x $1,886 /unit = $1,886
Sewer- 1 unit x $664 /unit = $664
6. If the final subdivision submittals are received after 2014, all fees shall be recalculated based
on the rates in effect at that time
7. The remaining 70% of the sanitary sewer and water hookup fees must be paid with the
building permit at the rate in effect at that time
A plumbing permit is required for the private storm sewer, the plumbing inspector will
inspect the connection to the city storm sewer manhole.
9 On Parcel 1, the proposed home style as required by City Code Section 18 -40 (4) 2 (iii) is a
slab -on -grade home Based on Interstate Geotechmcal Engineering's observations, the
groundwater elevation is 1 8 feet below the ground elevation of the soil boring. The
developer must verify the surface elevation of the boring location to determine the elevation
of the groundwater, the lowest floor must be minimum three feet above that elevation per
City Code Section 18 -40 (4) 2 (1).
Environmental Resource S ecp ialist
1. Tree protection fencing will be required around any preserved trees. It shall be installed prior
to grading and located at the drip lines of the trees
2. Parcel 1 is required to have one tree planted in the front yard.
Parks
1. Park fees of $5,800 00 shall be paid for each new single- family lot prior to the recording of
the property deed.
Planning
Deeds shall submitted to the city for review and recorded at Carver County for the two
parcels
2 A building permit shall not be issued unless all soil corrections have been completed as
indicated in the attached exhibits titled "Subsurface Soil Investigation" dated October 25,
2014 and November 13, 2014
2
Water Resource Coordinator
1. Total surface water management fees due prior to recording the property deed are $1,914 55
Passed and adopted by the Chanhassen City Council this 24th day November of 2014
ATTEST:
c�
Todd Gerhardt, City Clerk/Manager
YES
Furlong
Ernst
Laufenburger
McDonald
Tjornhom
NO
None
3
Thomas A Furlong, Mayor
ABSENT
None
Interstate Geotechnical Engineering, Inc
Patrick J Hines, PE
8167 100' st s
Cottage Grove MN 55016
(612) 414 -5770
25 October 2014
Mr James Rudos
14846 Timber Hill Road
Minnetonka MN 55345
Re; Subsurface Soil Investigation
Proposed Single Family Residence
W of 2061 W 65t'' St, Chanhassen, Minn
CITYDFCHANHASSEt
RECEIVED
NOV 0 4 2014
041W, SE N PLANNING oEpT
In accordance with your authorization, I have completed the above referenced investigation
to determine site suitability for the proposed construction A summary of my findings
together with boring logs and my conclusions and recommendations are presented in the
enclosed report.
I found, as you already have been briefed, more than usual problems with the site There is
a total of 53/4° & 6'/4 at the locations of Boring 1 & Probe IA, respectively, of unsuitable soil
in the form of topsoil fill, general and varying fill, and buried original humus Below at first
is a low sand content lean clay, generally dark in color, saturated, very soft to soft (w/ depth).
It is "normally consolidated" (consolidated enough to only support its own weight, not
additional weight of fill soils or structures above). The overburdening fill has not been
inplace long enough to force further consolidation. The moisture content test in this material
indicated nearly 42 %, high for a lean clay. This material extends only from 53/4' to 7' in
Boring 1, but from 6'/4' to 83/2' in Probe IA. The first 9'° of this material in Probe IA is very
soft and is a borderline marl material. All of the aforementioned materials are unsuitable for
structure support should be removed. I do acknowledge that excavators are often reluctant
to excavate further once the buried organic soil is cleared, so understandings should be
inplace at the time of gathering bids.
Base soil below at first is a lean clay, a little sandy, dark gray, saturated, rather soft to
medium. It has inclusions of a poorly graded (biased finer grained) sand with a few fines,
also dark gray, saturated, loose to firm. Deepest soil, commencing at I Pin Boring 1, is a lean
clay, rather sandy, dark gray, low gravel content, medium. Theses materials are glacial till.
The sand inclusions in the upper portion are glacial outwash. All of these base mineral soils
are suitable for residential construction, with conditions. Refusal to auger advancement was
not encountered by boring termination depth of 23', indicating lack of bedrock to this level.
Very importantly, groundwater was found in the main Boring at 1.8' (elev 96'/4 ±). It is
aquifer groundwater, but marginally so. It appears to be contained primarily in the sand
inclusions at 7'+ But it also is coming from the upper soft and very soft clay, possibly from
SCANNED
Mr James Rudos
25 October 2014
Page 2
the lower organic soil. Proper construction on the site (removing the softer lean clay,
promoting good site drainage) will mitigate some of this. Thus, water found presently can
be regarded as a maximum level. Slab grade of the proposed residence should be set in
accordance with City requirements utilizing this level
I recommend complete removal of all unsuitable soil which is likely to be the fall and buned
organic soil as encountered plus the overly soft clay found in both the boring and probe.
Whale this amounts only to another 11/4 in the vicinity of Boring 1, it is another 2'+ in the
vicinity of Probe lA As indicated, excavators may be reluctant to excavate below organic
soil level, but it is necessary (see longer discussion in the report) It is so important that full
time inspection of the excavation by a soils engineer may be necessary Of course, other
zones of unsuitable soil not represented by the boring and probe could stall be encountered
due to the nature of small volume random sampling. Any other depths or zones of unsuitable
soil should be removed as well. You could lower footings somewhat so that you have to
provide less oversizing and not stray onto the neighbor's property. But footings here should
not be lowered so much as to rest directly upon the suitable base soil as it is only marginally
suitable. You need a little fall (2' is recommended) to spread footing loads out with depth.
Footings maybe generally designed allowing the usual 2000 psf foundation bearing capacity,
which will likely result in normal strip or pad footings.
Special attention is again drawn to the advisory that excavations be examined by the Soils
Engineer to verify soil boring results and to document adequacy of site preparation Again
this is very important as how much soft/very soft clay must be removed will require a high
degree of field judgment. Fill, as used, should be tested for compaction adequacy Soil
correction should not be abated below slabs in any manner (ie, do not let the excavator try
to "trench around" slab areas).
Thank you for the opportunity to have been of service. If you have any questions on this, or
if I can be of assistance in any additional capacity, do not hesitate to contact me at your
convenience.
Sincerely,
RSTATE GEOTECHNICAL ENGINEERING, Inc
atrick J Hines,
President
enclosures
pH /SC
f - SOIL BORING LOG
Patrick J Hines, PE 8167 100th St S
1 Cottage Grove MN 55016
f
FrQposed Single Family Residence
PROJECT West of 2061 W .65th St Chanhassen, Minn
LOG OF BORING NO. -
SURFACE ELEVATION-
IN SAMPL): LAB OTHER TESTS
IN GEOLOGY 1"! 1A/B
i FS €T DESCRIFTIONAI DCLA,SSIFICATIOW L
I
5.75
1
10
TYPE R W DE. P,L set ue
LEAN CLAY, variably sandy, Organic (OL Topsoil -
Black, w/ tr s mineral Soil, Fill N 1 Iii'
1 very moist, loose to firm
LEAN CLAY, somewhat sandy, Pred Dark Gray (CZ) Fill ' J'
W/ aa. little Organic Soil, w/ tr grave (elev X32 HA
kwist to very moist, loose to fiYm
3 LEAN CLAY, rather silty, Organic (OL) Buried 3 HA
Lborderline small roots, tr's - undecom- Humus
4 getation, saturated, rather I
Sapric Peat in soft I I
5 rtion
sl lighter, less organic, w/ depth
5 LEAN CLAY, a little sandy, Very Dark-
ar to Lacustrine Y 4 HA 41.9
t
Dark Gray (CL), very soft_ to safe (w/ Deposit
�` v `I' I < _ de th 7j ,
' , poor 1 gra r: pre one gr, w
Glacial
med, t�r c�s), w/ a few fines, Dark Gray Till, w/ Y 5' 8/13
(SP), saturated, loose to firm Outwash Y 6 FA 25.6
banded w/ LEAN CLAY, a little sandy, inclusion
Dark Gray (CL), saturated, rather soft
soft to medium @ 8P+
more bands of clay, less of sand, w/
depth
(LEAN CLAY, rather sandy, Dark Gray
I
12 (CL), w/ a little gravel
i saturated, medium
13J
14
15
16-'
17
18
19
20
21,
WATER LEVEL MEASUREMENTS
DATE i1A0 SJ6i�6i�LED CJSiMG
,1 DEPTH }i D£rTT}ti
G4VE IN
D£PTN
DRILLING
M, LEVE
23 Oct 16:29 7 '
None
24 Oct 13:51
5®
14:35 to 23'
64'
oo` o0 4 -15:20
{{
511' f
Glacial N 1 7 I FA
Till
N 1 8 1 FA
SW
DRILLING DATA
I
i
tph± BreeJ
ly Clear,
70 °F ±,
Calm I
I
W A TE;t
LEVEL Crew Chief pH 1
3.8' method 3" Hand & 4" Power Fli ht*
Augers *Mobile B -31 Drill
Rig on Dodge Power Wagon
3J1 Coml�enced: 23 Octo er
2.1' Boring Ccrnpleted 24 October 2014
8011, BORING LOG
r (continued) 816-, 100th St S.
� �� � � Cott"g® rrmia 15 95016
Proposed Single Family Residence
PROJECT: West of 2061 65th St, Chanhassen, Minn
LOG OF BORING NO: 1
DEPTH SURFACE ELEVATION: 98.1 SAMPLE LAS & OTHER TESTS
IN GEOLOGY N W8 L L
FEET DESCRIPTION AND CLASSIFICATION TYPE R 1AS OE P L.
LEAN CLAY, rather sandy, Dark Gray (Cl;, Glacial N 9 FA
22 w/ tr to a little gravel Till
saturated, medium
23 _....
End of Boring - No Refusal
Bore hole void backfilled w/ native
25 cuttings mixed w/ Bentonite on 24
October 2014
26
27
_ Probe 1A - Elev = 97.8
2 e
0 -6V Topsoil Fill, Fill: (Sri less
29 than Boring 1), Buried Humus
Ie= 6k' -7' Lean Clay, possibly ,Marl,' -
30
Gray, saturated, very soft
j 7' -8j' FLean Clay, rather silty, Dark
-31 ff 'p<<GrEry, saturated, V_ery soft to
soft
W -10$' Lean Clays w/ band inclusions,
32 _ 'Dar;k GYay, saturated, soft to
medium
33 Probe put down by power flight auger
method on 24 October 2014 & ummed -4'
34 ately backfilled w/ native cuttings
mixed w/ Bentonite
35
I
t 36
I
37
i
38
i 39
I
4
s 41
42
43
I
441 I
451
I 46 i i
ti
4
t
- K-
Probe 1A
Elev = 9'
P
-331
Boring No 1
Elev = 98. 1.
W 66th Street
q BENCH MARS:: Top nut of fire
I' hydrant on south side
of street, approx on
east line extended ..of'
"parent" lot; Eld- 100.00
(ry)
LOCATIONS OF Patrick J Hines, PE
SOIL BORINGS - 81.67 100,01 St. 8
Qgttage ^Grovi MN 55C46
SCALE 1PP = 20' DRAWN BY pH
oATE: 24 Oct 2014 Proposed Single 1[612) -41A-'57-7-0.
Family Residence
West of 2061 W 66th Street
Chanhassen, Minnesota
Client: James Rudos
Minnetonka, Minn
PROM : INTERSTATE GEOTECHNICRL ENG PHONE NO. ` 651 769 2467
Interritate Geotechnical Engineering, Inc
Patrick I Hines, ]Pl,
8167100V St 5
Cotta G Grove MN 55016
(612)414 -5770
13 November 2014
Mr lames Rudos
14846 Tunberhill Road
Minnetonka MI\T 55345
- Ro: Subsurface Sail Investiption
Proposed Single Family Residence
W of 2061 W 65th St, Chanhassen, Minn
Nov. 13 2014 11 :05RM P2
This is in response to your contact of recent regarchn,g groundwater On this project, As you
know, I investigated the lot last month and issued a report dated 25 October 2014.1 found
a total of 7 & 8'/,' of unsuitable soil at the locations ofBotixig 1 & Probe 1A, respectively,
in the farm of topsoil fill, general and varying fill, buried original humus and overly soft clay
or marl. First suitable base soil is a loose to 6= sand or a soft to medium lean clay. I
rocomme>nded r. emoving these materials and placing controlled fill, noting that you will have
to seriously control groundwater in the process. Regarding groundwater, I found it very high
on this site - at a stabilized level of 1.8'. As I undo -stand it, The City of Chanhassen has asked
if this water level will change as a result of site correction.
I used as a stabilized water level the 1.8' found a flay after the hand auger phase was
completed. I had enoDuntered water while &filling and did achieve the base granular soil that
first day. When I did the power auger phase, water was e reepping up to nearly the same level
a few hours later, so I felt that tbo 1.8' is valid I believe that, when you correct this lot,
controlling groundwater, and compacting fill, most likely gmular, the groundwaterwill. soon
rebound to its original level - 1.8' as found in my boring. If you construct ordinary and good
site drainage on your finished project, groundwater will not be affected by any artificial
recharge the result of your activities
If you have any additional questions on this, or if I can be of assistance in tiny additional
acity, do not hesitate to contact me at your convenience.
sincerely,
INTERSTATE GEQTECHNI RING, Inc
�; 1p�°?��E�°� tSp� CI�iC�"t'�!0�$ �Jr4
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Patrick J Hines, P t'*! tzar dEE -� i 3l.' "; ; i i t; t F i i i� 8`!°AT Q 1v9I1�t ES'JTA
�`- $TRTE
President .,
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