Approval Letter 1-26-21T Y
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5 Chanhassen is a Community for Life-Providing for Today and Planning for Tomorrow
January 26, 2021
Tim Erhart
Black Cherry Development, LLC
14500 Martin Drive, Ste. 3000
Eden Prairie, MN 55344
Re: Interim Use Permit - Planning Case 2021-03
Dear Mr. Erhart:
This letter is to confirm that on January 25, 2021, the Chanhassen City Council approved the
Interim Use Permit to allow site grading subject to the following conditions:
Engineering
1. The applicant and their engineer shall work with city staff in amending the Erosion and
Sediment Control Plans, dated December 4, 2020, prepared by Mark Rausch, PE with
Alliant Engineering, Inc., to fully satisfy Sec. 19-145 of City Ordinance and address any
staff concerns.
2. All erosion control reviewed and approved in conjunction with Condition No. 1 shall be
installed prior to the initiation of any site grading. Inspection and approval by the city of
the installed erosion control measures must be had prior to grading operations.
3. The applicant shall supply a cash escrow or letter of credit in the amount of$27,517.50
prior to grading operations.
4. A survey of the proposed stockpile location shall be provided before grading operations
and after grading operations to delineate the total area and volume of material stockpiled
in conjunction with this Interim Use Permit.
5. Permitted hours of operation will be 7:00 a.m. to 6:00 p.m., Monday through Friday, and
9:00 a.m. to 5:00 p.m. on Saturday, with no work permitted on Sunday or public
holidays.
6. The Interim Use Permit shall be approved for a period of one (1) year from the date of
City Council approval. The applicant will need to request a formal extension 60 days
prior to the expiration date of the Interim Use Permit.
PH 952.227.1100• www.ci.chanhassen.mn.us• FX 952.227.1110
7700 MARKET BOULEVARD •PO BOX 147•CHANHASSEN •MINNESOTA 55317
Tim Erhart
Interim Use Permit—Planning Case No. 2021-03
January 26, 2021
Page 2
7. The applicant shall apply for and obtain permits from the appropriate regulatory agencies,
as necessary, i.e. Riley Purgatory Bluff Creek Watershed District, Carver County,
Minnesota Pollution Control Agency, Minnesota Department of Natural Resources,
Army Corps of Engineers, etc. and comply with their conditions of approval.
Environmental Resources
1. Wherever erosion control measures are not present, the applicant shall install tree
protection fencing at the edge of grading and hauling limits throughout the haul route and
stockpile area prior to any work being done.
2. Unless there are frozen soil conditions as determined by the city,the applicant shall
install ground protection mats with an underlayment of shredded wood mulch on the
entire length of the haul route. The mats will require an inspection by the city prior to
use.
3. The applicant is required to submit a restoration plan that includes the replacement of
trees within the buffer area and the haul route. The quantity shall be determined to match
the existing density occurring in the forest outside of the construction limits.
4. Soil compaction tests shall be taken and levels documented post construction. If soil bulk
density exceeds limits to plant growth (1.0g/cc), then appropriate restoration methods
shall be employed such as aeration as directed by the city.
5. No vegetation outside of the wetland boundary shall be removed on city property.
6. No access to the project site shall be allowed through city property.
7. The removal of the wooded areas for the dredging of the pond shall not be permitted on
the city-owned parcel and should be preserved on the other two parcels.
Water Resources
1. The applicant must limit all grading to the wetland boundary. No grading or vegetation
removal is allowed beyond the wetland into the upland.
2. The wetland boundary must be completely flagged and walked with the city's Water
Resources Coordinator before any construction activities can begin.
3. Erosion and sediment control measures must be adequately in place before construction
begins.
Tim Erhart
Interim Use Permit— Planning Case No. 2021-03
January 26, 2021
Page 3
4. No grading is permitted in the Type 3 portion of Wetland 2 (see plans for further details).
Area of non-disturbance must be flagged prior to construction and approved by the city's
Water Resources Coordinator.
5. The applicant shall apply for and obtain permits through the Riley Purgatory Bluff Creek
Overlay District, including dredging, floodplain.
Prior to beginning grading operations,please submit the required revisions of the plan as well as
the restoration plan for staff review. Erosion control must be installed prior to beginning grading
operations. Please contact Ryan Pinkalla at(952) 227-1173 or by email at
rpinkalla@ci.chanhassen.mn.us to inspect the erosion control and the flagged wetland boundary.
The city will then issue you authorization to proceed. The grading security shall be provided in
the amount of$27,517.50 prior to grading operations.
If you have any questions or need additional information, please contact Erik Henricksen at
952)227-1165 or ehenricksen@ci.chanhassen.mn.us.
Respectfu
Robert Generous, AICP
Senior Planner
ec: Kate Aanenson, Community Development Director
Erik Henricksen, Project Engineer
Charlie Howley, City Engineering/Public Works Director
Heather Johnston, Interim City Manager
Ryan Pinkalla, Water Resources Technician
Jerry Ruegemer, Parks & Recreation Director
Jill Sinclair, Environmental Resource Specialist
Matt Unmacht, Water Resources Coordinator
Mark Rausch, Alliant Engineering
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