Memo to Paul Taunton from Carver County WMO 06-02-2014cr-
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Carver County Water Management Organization
Paul Taunton, Business Impact Group
From: Kristen Larson, Carver County Water Management
Date: June 2, 2014
Re: Business Impact Group - Approval
File: WP20140012
cc: Jared Jones, MFRA
Terry Jeffery, City of Chanhassen
Paul Moline, Carver County Water Management
Chip Hentges, Carver SWCD
Seth Bossert, Carver SWCD
Kent Torve, Wenck Associates
Enclosures: example maintenance and operations plan
Marna, "WaxM®raDept
Grnmrrxnt Carter - Adnlnhtmtlm M*q
600 East 4h Rtr
Chaska, Mhvesats 55318
Ph": (952)3614820
Fax: (95213641828
..mcamr.mn.us/wa
Carver County Water Management received an application for water rules compliance for the
Business Impact Group Project in Chanhassen on April 21, 2014 and revised plans and information
on May 14, 2014, and May 21, 2014. This letter is to inform you that Carver County Water
Management is pleased to give approval for the project. The permit is valid until December 2, 2015
(18 months from the date of this letter). If the authorized work does not commence within the above
time period, or the project specifications have changed, our office must be contacted to determine the
need for further approval or re- verification.
General Permit Information
Please keep in mind the following prior to and during construction:
1. Authorized Work. This permit authorizes the activities described in the plan set with revisions
dated May 21, 2014.
2. Financial Security. Financial security in the amount of $2,000 is required for this project and
should be submitted prior to the start of construction. The security is deposited with the county for
faithful performance of the approved plans and to finance any necessary remedial work.
3. Preconstruction Meeting. The general contractor for the project should contact Chip Hentges at
the Carver SWCD (952.466.5230) to schedule an onsite meeting prior to beginning construction
on the site.
4. SWCD Monitoring. The Carver SWCD will monitor the site to ensure compliance with Erosion &
Sediment Control requirements, County Water Rules, and NPDES requirements. Additional
BMPs may be needed as field conditions change.
5. Soil Export. If soil import or export is necessary, haul routes and disposal areas should be
discussed with the Carver SWCD 48 hours prior to material being exported off site. If fill is
exported to another site within the Carver County Watershed Management Organization area,
additional permit approval from Carver County Water Management may be required.
6. Stop Work Orders. Carver County Water Management has the authority to issue Stop Work
Orders if it feels that a site is not being properly managed for stormwater protection. Prior to a
stop work order, all involved parties will meet to try to resolve the issue. If further violations
continue, a Stop Work Order will be enforced until a time that Carver County Water Management
feels all stormwater issues have been resolved.
7. Maintenance Plan. A maintenance plan for the stormwater management system and any
necessary maintenance agreements must be submitted to the County. The maintenance plan
should define maintenance responsibilities following completion of the project, specify types and
frequency of inspection activities and maintenance activities, and specify who will conduct
inspections and maintenance activities (see attached example for additional information).
8. As- builts. As- builts documenting the bioretention basins (inlet, outlet, tile elevations, etc.) will
need to be submitted in order to demonstrate that control structures and other features were
installed according to the approved plans. Collecting elevations and locations during
construction will reduce cost and time. If you have any questions about as -built submittal
requirements please contact Chip Hentges, Carver County SWCD, at 952.466.5230 or Kristen
Larson, Carver County Water Management, at 952.361.1824.
9. Satisfactory Compliance Inspection. Upon completion of the project, the County will conduct
an inspection of the site to ensure that the site has been stabilized, all erosion and sediment
control measures have been removed, and that stormwater treatment features have been
installed correctly.
10. Return of Financial Security. The responsible party shall provide $2,000 as financial security for
the performance of the authorized work. The security shall be released after grading is complete,
the site has been re- vegetated, all erosion and sediment measures have been removed,
stormwater treatment features have been installed correctly, and as- builts and a maintenance
plan have been submitted.
If you have any questions, please feel free to get in touch with me or contact the individuals listed
above.
< 7�` c
Kristen Larson
952.361.1824
klarson &o. carver.mn. us
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