Approval Letter Amending IUP 10-26-21 o
z CITYOFCIIANIIASSEN
Chanhassen is a Community for Life-Providing for Today and Planning for Tomorrow
October 26, 2021
Tim Erhart
Black Cherry Development, LLC
14500 Martin Drive, Ste. 3000
Eden Prairie, MN 55344
Re: Amended Interim Use Permit - Planning Case 2021-03
Dear Mr. Erhart:
This letter is to confirm that on October 25, 2021, the Chanhassen City Council approved the
amended Interim Use Permit to allow site grading subject to the following conditions:
Engineering
1. 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 of the
Interim Use Permit pursuant to City Code Section 20-321 at least 60 days prior to the
expiration date of the Interim Use Permit.
2. 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.
3. The applicant and their Engineer shall work with City staff in amending the Grading and
Erosion and Sediment Control Plans dated October 1, 2021,prepared by Mark Rausch,
PE with Alliant Engineering, Inc. in the event that the grading permit for the Erhart
Farms subdivision is not approved on October 25, 2021.
4. The applicant shall supply an additional cash escrow or letter of credit in the amount of
$13,500.00 prior to grading operations.
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. All erosion and sediment control BMPs shall be installed prior to the initiation of any site
grading. Inspection and approval by the City of the installed erosion and sediment
control measures must be had prior to grading operations.
PH 952.227.1100 • www.ci.chanhassen.mn.us • FX 952.227.1110
7700 MARKET BOULEVARD • PO BOX 147 •CHANHASSEN • MINNESOTA 55317
Tim Erhart
Amended Interim Use Permit — Planning Case No. 2021-03
October 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. No vegetation within the upland or wetland buffer areas of the city property shall be
removed.
2. No access to the project site shall be allowed through City property.
3. The applicant is required to submit a restoration plan that includes the replacement of
trees within the buffer area and the haul route for the original 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 for the
original haul route. 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.
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.
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 rpinkalla@ci.chanhassen.mn.us to
inspect the erosion control and the flagged wetland boundary. The City will then issue you
Tim Erhart
Amended Interim Use Permit—Planning Case No. 2021-03
October 26, 2021
Page 3
authorization to proceed. The additional grading security shall be provided in the amount of
$13,500.00 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.
Respectful
Robert Generous, AICP
Senior Planner
ec: Kate Aanenson, Community Development Director
Erik Henricksen, Project Engineer
Laurie Hokkanen, City Manager
Charlie Howley, City Engineering/Public Works Director
Ryan Pinkalla, Water Resources Technician
Jill Sinclair, Environmental Resource Specialist
Dan Blake, The Pemtom Land Company
Mark Rausch, Alliant Engineering
g:lplan12021 planning cases121-03 erhart iuplamendment to iup 10-19-21\approval letter amended iup.docx