HomeMy WebLinkAbout6.j. Dakota County Technical College Rezoning & Site Plan Review to Allow Construction of an Outdoor Baseball Complex and Associated Accessory Structure, Case 10-20-SP & 10-21-RZAGENDA ITEM: Case 10 -20 -SP 10 -21 -RZ
Dakota County Technical College
Rezoning Site Plan Review to Allow
Construction of an Outdoor Baseball
Complex and Associated Accessory
Structures.
AGENDA SECTION:
Consent
PREPARED BY: Jason Lindahi, AICP
Planner
AGENDA NO.
(.0-
ATTACHMENTS: 8 -24 -10 4 -24 -11 PC Excerpt Minutes,
Rezoning Ordinance, Site Plan Approval
Letter, Site Map, Revised Storage Building
Plans, City Engineer's Memo dated
4/13/11.
APPVED BY:
Dpi
RECOMMENDED ACTION: Staff recommends the City Council make the
following motion:
1. Motion to approve an ordinance rezoning subject properties from AG
Agriculture to P/I Public and Institutional.
9 ROSEMOUNT
City Council Meeting Date: May 17, 2011
SUMMARY
Applicant Property Owner(s):
Location:
Area in Acres:
Comp. Guide Plan Desig:
Current Zoning:
CITY COUNCIL
EXECUTIVE SUMMARY
Dakota County Technical College (DCTC)
1300 145 Street East East end of campus, south of 145
and west of Audrey Avenue.
Approximately 8 Acres
POS Parks and Open Space
AG Agriculture
The applicant, Dakota County Technical College (DCTC), requests rezoning to allow construction
of an outdoor baseball complex. The project includes a full sized baseball field with associated
accessory structures including bleachers for 640 people, a 7,200 square foot building for storage, a
batting cage, and two dugouts. The rezoning from AG Agriculture to PI Public /Institutional is
necessary to facilitate the requested use as well as to apply a uniform zoning district to the DCTC
campus. Both the Planning Commission and staff recommend approval of the rezoning request.
BACKGROUND
In August of 2010, Dakota County Technical College (DCTC) requested rezoning and site plan
approvals to allow construction of an outdoor baseball complex. The Planning Commission
approved the site plan subject to conditions (see attached approval letter) and recommended the
City Council approve the rezoning at their September 7, 2010 meeting. Environmental and grading
issues with the site caused the applicant to delay action on this project. The applicant would now
like to move forward with the project and has provided updated building plans and new information
from the Minnesota Pollution Control Agency regarding the environmental conditions on site. The
Planning Commission reviewed this information during their April 24, 2011 meeting and found the
plans acceptable.
PLANNING COMMISSION ACTION
The Planning Commission first reviewed this application and held a public hearing on this item
during their August 24, 2010 meeting. Meeting minutes are attached for reference. After hearing a
presentation from staff and no public comment, the Commission asked several questions of both
staff and the applicant. Commissioner Irving asked about the field lights and scoreboard. Staff
explained that the plans did not include information on either item but a condition of approval
requires them to provide all necessary information during the building permit process.
Commissioner Demuth asked about the timeline and environmental issues for the project. Dr.
Thomas, President of Dakota County Technical College stated that they hope to complete the field
and landscaping this fall. There would be limited practice on the field next spring and games would
take place next fall. Dr. Thomas stated that he was unaware of any environmental issues on the site.
Commissioner Powell asking the applicant why most of the grading work was completed prior to
getting City approval. Dr. Thomas stated that Ames Construction had donated their services but
needed to begin the work quickly to maintain their own schedule. Commissioner Demuth stressed
that she had reviewed several items that indicated there may be environmental issues on the subject
property and recommended a condition of approval require DCTC provide documentation from the
Minnesota Pollution Control Agency (MPCA) that there are no environmental issues with this site.
The Commission then strongly expressed their disappointment with DCTC for not honoring the
City's review process and for not being able to answer basic environmental questions. The
Commission then recommended the City Council approve the rezoning and approved the site plan,
subject to conditions.
More recently, the Planning Commission received a project update during their April 24, 2011
meeting. Minutes from that meeting are attached. During that meeting, staff stated that the updated
building and environmental information provided by DCTC are consistent with the original
conditions of the site plan approval granted by the Planning Commission in August 2010. Details
on the updated building materials are provided in the Site Plan Review Update section below.
ISSUE ANALYSIS
Rezoning. The applicant requests rezoning of the subject properties (see attached map) from AG
Agriculture to P/I Public and Institutional to allow construction of the proposed baseball complex
as well as to apply a uniform zoning district to the DCTC campus. The criteria to weigh when
considering a rezoning request are outlined below. Based on this information, staff recommends
approval of the rezoning.
Consistency with Comprehensive Plan. The subject property is located outside the Metropolitan
Urban Service Area (MUSA) boundary and the 2030 Land Use map guides it as POS Parks and
Open Space. According to the Comprehensive Plan, this category is intended to provide a wide
variety of recreational and open space opportunities from ballfields to nature preserves and
designates P/I Public and Institutional as the corresponding zoning classification. Currently, the
property is zoned AG Agriculture as the default holding category until development occurs.
Given the POS land use designation and the proposed baseball complex use, staff recommends
approval of the rezoning, subject to conditions.
2
Present and Future Land Uses Surrounding the DCTC Baseball Complex
Direction
Present
Future
North
Agriculture
Commercial
South
Public and Institutional
Parks and Open Space
East
Agricultural Research
Parks and Open Space
West
Public and Institutional
Public and Institutional
Compatibility with Present and Future Land Uses. The proposed baseball complex use is
compatible with present and future land uses. The surrounding present and future land uses are
detailed in the table below. Rezoning the subject property to P/I Public and Institutional is
consistent with the standards in the comprehensive plan and is appropriate for the proposed
baseball complex use, subject to conditions.
Engineering Comments. Engineering comments for the site are found in the attached memo.
Last summer the applicant had substantially graded the site prior to city review and approval of
these applications as well as issuance of a grading permit. Over the winter months DCTC and the
City's Engineering Department worked together to devise a grading plan that is appropriate for the
site.
Availability of Utilities. The subject property is located outside the Metropolitan Urban Service
Area (MUSA) boundary. The applicant intends to supply potable water to the site through the City's
water system. The revised building plans now include bathroom facilities. However, DCTC will
also be required to provide additional sanitary facilities (portable satellites) for large events. As a
result, staff established a condition of site plan approval require the applicant to provide handicap
accessible satellites in conformance with Dakota County Health standards for portable sanitary
facilities.
Site Plan Review Update. The original site plan approval granted by the Planning Commission in
August of 2010 approved the project including a full sized baseball field with associated accessory
structures, bleachers for 640 people, a 7,200 square foot storage building, a batting cage, and two
dugouts. The original approval included nine conditions. Those conditions and their current status
are provided below.
1. Approval of a rezoning from AG Agriculture to P/I Public and Institutional.
Status: Last fall the applicant requested the City delay action on the rezoning application due to
environmental and grading issues with the site. The applicant has worked to resolve these issues
(see below) and now requests the City Council take action on the rezoning. It should be noted
that the conditions associated with the site plan approval remain in effect under either the
existing AG Agriculture or the proposed P/I Public and Institutional zoning.
2. Revise the storage building and dugout plans to be constructed of a masonry material similar to
those used on the principal college building with the proposed metal roof shaped and painted to
look like shingles.
Status: Originally, the storage building was to be constructed of metal panels with a stucco finish
and a metal roof material shaped and painted to look like shingles (attached). Staff
recommended and the Planning Commission approved a condition of approval requiring the
3
storage building be constructed of masonry materials similar to those used on the principal
college building. The revised plans now show the building will be made of rockface concrete
masonry units (C.M.U.) with two horizontal accent bands and asphalt shingles. The upper half
of the building includes aluminum framed windows while the lower half has glazed block
accenting the concession area in the northeast corner of the building. The building is similar to
the structure located at the DCTC soccer fields. Staff finds these plans conform to the original
condition of approval.
3. Submit and receive approval of a revised landscaping plan providing an additional 41 trees and
34 foundation plantings around the proposed storage building. The applicant shall also provide
a landscape security equal to 110% of the value of the required landscaping.
Status: The applicant has yet to submit a revised landscaping plan but will be required to do so
prior to issuance of a building permit. It should be noted that the City Engineer requires the
applicant to relocate any tree located within a diversion swale to another appropriate location on
the site.
4. Submit and receive approval of a lighting plan for all exterior lighting prior to installation of the
lights.
Status: The applicant has yet to submit a lighting plan but will be required to do so prior to
receiving a building permit for installation of any exterior lighting. The applicant has indicated
that it may be some time before funds are available to install exterior lighting.
5. Submit and receive approval of a plan that includes a trash enclosure made of similar materials
to the principal college building or document that all trash will be stored inside the proposed
storage building.
Status: A trash enclosure is no longer required because the applicant now plans to store their
trash containers inside the proposed building.
6. Receive approval of an amendment to the existing sign Planned Unit Development agreement
for the overall campus to include the four proposed signs and scoreboard.
Status: The applicant has yet to submit a PUD amendment for the proposed signs but will be
required to do so prior to installation of any additional signs.
7. Conformance with all the requirements of the City Engineer.
Status: DCTC and the City's Engineering Department have worked together to devise a grading
plan that is appropriate for the site.
8. The applicant shall provide handicap accessible satellites in conformance with Dakota County
Health standards for portable sanitary facilities.
Status: The revised building plans now include bathrooms. As a result, no satellites will be
required for daily use. However, they may still be required for future events that draw significant
numbers of patrons to the facility.
4
9. The applicant shall demonstrate to the City, Dakota County and the Minnesota Pollution
Control Agency that there are no environmental issues on the property.
Status: While the applicant has submitted a letter from the Minnesota Pollution Control Agency
(MPCA) stating their Asbestos Mitigation Control (AMC) Work Plan was approved, DCTC still
has several more steps to take with the MPCA before any construction can take place.
CONCLUSION RECOMMENDATION
Both the Planning Commission and staff recommend the City Council approve rezoning the subject
properties from AG Agriculture to PI Public /Institutional to allow the construction of an
outdoor baseball complex with associated accessory structures as well as to apply a uniform zoning
district to the DCTC campus. DCTC must comply with all conditions of the site plan approval
including, but not limited to, demonstration that they have complied with all grading requirements
of the City and the environmental standards of Dakota County and the Minnesota Pollution Control
Agency prior to any construction on the subject property. The site plan approval was given by the
Planning Commission in August 2010, however the information is provided to the City Council for
information purposes.
5
EXCERPT OF MINUTES
PLANNING COMMISSION REGULAR MEETING
AUGUST 24, 2010
c. Request by Dakota County Technical College for Rezoning and Site Plan Review to Allow
Construction of an Outdoor Baseball Complex (10- 20 -PLN, 10- 21 -RZ). Planner Lindahl reviewed
the staff report and that the applicant, Dakota County Technical College (DCTC), requests rezoning
and site plan approvals to allow construction of an outdoor baseball complex. The project includes
a full sized baseball field with associated accessory structures including bleachers for 640 people, a
7,200 square foot building for storage, a batting cage, and two dugouts. The rezoning from
Agriculture to PI Public /Institutional is necessary to facilitate the requested use as well as to apply
a uniform zoning district to the DCTC campus. Mr. Lindahl reviewed the plans and site plan review
process to the Commission.
Commissioner Irving asked about the lighting, the scoreboard in particular, in concern for future
surrounding housing. Mr. Lindahl stated that the applicant's plans do not provide any details as to
signage or the scoreboard but the signs would have to go through the planning process to get sign
approval.
Commissioner Demuth asked that what the timeframe for completion of the project would be. Mr.
Lindahl replied that the applicant would like to have the field and landscaping in place by this fall.
Beyond that, the applicant has not provided timing on additional items.
Commissioner Powell asked how the baseball complex fits into the future expansion plans of DCTC
and also how the Planning Commission is to approve a project that is almost completely graded
before the fact. Mr. Lindahl replied that he would forward those questions to the applicant for
answering.
Dr. Ron Thomas, the President of DCTC and Paul Demuth, Director of Operation, both
approached the Commission. Dr. Thomas spoke about the grading work completed by Ames
Construction Company stating that during discussions with Ames about working on the project, it
was determined that they needed to move quickly. He stated that state and city responsibilities have
yet to be resolved at this point. Dr. Thomas further stated that they want the landscaping and field
complete by the end of next semester and hope to play baseball by next fall with practices in the late
spring. He stated quite a bit of the final work will be done by students to provide a learning
experience with landscaping, electrical work, and concrete details. In response to Commissioner
Powell's question about DCTC's future plans, Dr. Thomas stated the baseball complex is part of the
upgrade to the master facilities plan as required by the Office of the Chancellor. They hope the
complex will be an additional item to make the campus attractive for future students.
Commissioner Demuth asked the applicant when DCTC acquired the parcel the baseball complex
was being constructed on. Dr. Thomas replied that property consisting of the driving range south
of complex, the baseball parcel and the soccer complex parcel were leased from the University and
last year they negotiated to purchase the property. Commissioner Demuth asked the applicant if
they obtained a Letter of No Association with respect to any environmental contamination on the
property because she stated that the MPCA has concerns about the baseball complex parcel. Paul
Demuth replied that the University informed them there were no contaminants on that parcel but if
there were, the University would be responsible for cleanup. He further stated that they did conduct
soil bore testing on the property and the tests were negative. Commissioner Demuth asked if they
tested for industrial contaminants. Mr. Demuth stated they can check the testing that was
conducted but they were not aware of any issues.
The public hearing was opened at 7:42p.m.
There were no public comments.
MOTION by Powell to close the public hearing. Second by Kolodziejski.
Ayes: 5. Nays: None. Motion approved. The public hearing was closed at 7:43p.m.
Chairperson Ege stated she is supportive of the project as a whole but believes that "the cart was
put before the horse" in that correct procedure was not followed and this case should not be
precedent setting for other applicants wanting to speed things up on their own. She stated that
DCTC should be cognizant of the procedure to contact the Planning Department before any work
is started.
Commissioner Powell agreed with Chairperson Ege's comments and also hoped this would not be
precedent setting.
MOTION by Demuth to recommend the City Council approve the rezoning request from
Dakota County Technical College to rezone the subject properties from AG Agriculture to
P/I Public and Institutional.
Second by Powell.
Ayes: 5. Nays: None. Motion approved.
MOTION by Demuth to approve the site plan illustrating a full sized baseball field with
associated accessory structures, subject to the following, and adding a final condition with
respect to the environmental assessment of the property:
Approval of a rezoning from AG Agriculture to P/I Public and Institutional.
Revise the storage building and dugout plans to be constructed of a masonry material
similar to those used on the principal college building with the proposed metal roof
shaped and painted to look like shingles.
Revise their landscaping plan to provide an additional 41 trees and 34 foundation
plantings around the proposed storage building.
Submit and receive approval of a lighting plan for all exterior lighting prior to installation
of the lights.
Submit and receive approval of a plan that includes a trash enclosure made of similar
materials to the principal college building or document that all trash will be stored inside
the proposed storage building.
Receive approval of an amendment to the existing sign Planned Unit Development
agreement for the overall campus to include the 4 proposed signs.
Conformance with all the requirements of the City Engineer.
The applicant shall provide handicap accessible satellites in conformance with Dakota
County Health standards for portable sanitary facilities.
The applicant shall demonstrate to the City, Dakota County and the Minnesota Pollution
Control Agency that there are no environmental issues on the property.
Second by Powell.
Ayes: 5. Nays: None. Motion approved.
Mr. Lindahl stated this rezoning item will go before the City Council for approval at the meeting on
September 7, 2010.
EXCERPT OF DRAFT MINUTES
PLANNING COMMISSION REGULAR MEETING
APRIL 26, 2011
a. Dakota County Technical College Rezoning and Site Plan Review to Allow Construction of an
Outdoor Baseball Complex and Associated Accessory Structures (10- 20 -PLN and 10- 21 -RZ).
Planner Lindahl stated in August of 2010, Dakota County Technical College (DCTC) requested
rezoning and site plan approvals to allow construction of an outdoor baseball complex. The
Commission approved the site plan subject to conditions and recommended the City Council
approve the rezoning at their September 7, 2010 meeting. Environmental and grading issues with
the site caused the applicant to delay action on this project. The applicant would now like to move
forward with the project and has provided updated building plans and new information from the
Minnesota Pollution Control Agency regarding the environmental conditions on site. Mr. Lindahl
went on to say that staff finds the updated building and environmental information provided by
Dakota County Technical College (DCTC) consistent with the original conditions of the site plan
approval granted by the Planning Commission in August 2010.
Commissioner Irving asked about the approval of the lighting and the scoreboard and Mr. Lindahl
replied that those items are conditions of approval through the permitting approval process.
Commissioner Powell asked if this item will come before the Planning Commission again in the
future and Mr. Lindahl replied that the Commission would not see additional plans beyond this
point unless requested.
City of Rosemount
Ordinance No. B -213
AN ORDINANCE AMENDING ORDINANCE B
CITY OF ROSEMOUNT ZONING ORDINANCE
Dakota County Technical College
THE CITY COUNCIL OF THE CITY OF ROSEMOUNT, MINNESOTA, ORDAINS AS
FOLLOWS:
Section 1. Ordinance B, adopted September 19, 1989, entitled "City of Rosemount Zoning
Ordinance," is hereby amended to rezone property from AG Agricultural to P/I Public and
Institutional that is located on the east side of the Dakota County Technical College campus within
the City of Rosemount legally described as follows:
PART OF THE SW 1 /2 OF SECTION 26, TOWNSHIP 115, RANGE 19, DAKOTA
COUNTY, MINNESOTA, BEG SE COR OF N 1052 FT OF W 730 FT THEREOF N
ON E LINE SAID W 730 FEET 915.02 FT TO S LINE OF N 137 FT E 478.89 FT S
01D287M55S W 538.40 FT S'LY 141.25 FT ON TAN -CUR CONC TO W RAD 366.07 FT
C/A 22D06M25S S'LY 99.48 FT ON REV CUR CONC TO E C/A 23D38M14S RAD
241.12 FT S TANG TO CURVE 142.94 FT TO S LINE OF N 1052 FT OF SW 1/4 W
422.50 FT TO BEG.
Section 2. The Zoning Map of the City of Rosemount, referred to and described in said
Ordinance No. B as that certain map entitled "Zoning Map of the City of Rosemount," shall not be
republished to show the aforesaid rezoning, but the Clerk shall appropriately mark the said zoning
map on file in the Clerk's office for the purpose of indicating the rezoning hereinabove provided for
in this Ordinance and all of the notation references and other information shown thereon are hereby
incorporated by reference and made part of this Ordinance.
Section 3. This ordinance shall be effective immediately upon its passage and publication
according to law.
ENACTED AND ORDAINED into an Ordinance this 17 day of May, 2011.
ATTEST:
Amy Domeier, City Clerk
CITY OF ROSEMOUNT
William H. Droste, Mayor
Published in the Rosemount Town Pages this day of 2011.
4 ROSEMUu\ r
August 26, 2010
Paul Demuth
Dakota County Technical College
1300 145 Street East
Rosemount, MN 55068
RE: DCTC Site Plan Review and Rezoning Applications
Dear Mr. Demuth:
At its regular meeting on August 24, 2010, the City of Rosemount Planning Commission
recommended for approval the rezoning application and approved the Site Plan pursuant to the
following conditions:
Approval of a rezoning from AG Agriculture to P/I Public and Institutional.
Revise the storage building and dugout plans to be constructed of a masonry material
similar to those used on the principal college building with the proposed metal roof
shaped and painted to look like shingles.
Submit and receive approval of a revised landscaping plan providing an additional 41
trees and 34 foundation plantings around the proposed storage building. The applicant
shall also provide a landscape security equal to 110% of the value of the required
landscaping.
Submit and receive approval of a lighting plan for all exterior lighting prior to installation
of the lights.
Submit and receive approval of a plan that includes a trash enclosure made of similar
materials to the principal college building or document that all trash will be stored inside
the proposed storage building.
Receive approval of an amendment to the existing sign Planned Unit Development
agreement for the overall campus to include the 4 proposed signs and scoreboard.
Conformance with all the requirements of the City Engineer.
The applicant shall provide handicap accessible satellites in conformance with Dakota
County Health standards for portable sanitary facilities.
The applicant shall demonstrate to the City, Dakota County and the Minnesota Pollution
Control Agency that there are no environmental issues on the property.
This item is scheduled to go before the City Council on Tuesday, September 7, 2010. If you have
any questions, please contact Jason Lindahl at 651- 322 -2090.
Sinccrel
I a Hanson
Planning Secretary
651- 322 -2051
COMMUNITY DEVELOPMENT
SPIRIT OF PRIDE AND PROGRESS
Rosemount City Hall 2875 145th Street West Rosemount, MN 55068 -4997
651 423 -441 1 TDD /TTY 651-423-6219 Fax 651-423-5203
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Dakota County Technical College
+15TH >ST W
OCTC•
Disclaimer: Map and parcel data are believed to be accurate, but accuracy is not
guaranteed. This is not a legal document and should not be substituted for a title search,
appraisal, survey, or for zoning verification.
4 T l$
Map Scale
1 inch 934 feet
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April 21, 2011
Minnesota Pollution Control Agency
520 Lafayette Road North I St. Paul, Minnesota 55155 -4194 1 651- 296 -6300
800- 657 -3864 1 651- 282 -5332 TTY I www.pca.state.mn.us I Equal Opportunity Employer
Mr. Gregory Ewig
Director of Real Estate and Facilities Business Support
Minnesota State Colleges and Universities
350 Wells Fargo Place
30 East 7 Street
Saint Paul, Minnesota 55101 -4946
Mr. Paul Demuth
Dakota County Technical College
Main Building
1300 145 Street
Rosemount, Minnesota 55068
RE: DCTC Leased Property Parcel A, Southwest of Audrey Avenue 145 Street East, Rosemount
MPCA VIC Project Number VP22482
ACM Inspection Work Plan Approval
Dear Mr. Ewig and Mr. Demuth:
The Minnesota Pollution Control Agency (MPCA) staff in the Voluntary Investigation and Cleanup (VIC)
Program has reviewed the "ACM Inspection Workplan" (Work Plan), dated February 18, 2011, for the
DCTC Leased Property site, located at the address referenced above (the Site). The Report was prepared
and submitted on your behalf by ATC Associates, Inc. (ATC).
An ACM Inspection Report shall be submitted to the MPCA for review and approval following the
implementation of the work plan activities and final grading activities for the Site. The Work Plan is
hereby approved, subject to the following conditions:
1. The soil screening process of the approximately 20,000 cubic yards of topsoil that was generated
during grading activities last autumn shall include wetting down the soil while it is passing
through the screen; and
2. The screened soil may be reused onsite, however, is shall be placed at least two (2) feet below a
non impacted, non debris containing fill. The fill material should be from a native source and
documented in the subsequent ACM Inspection Report.
In addition, because the future use of the Site is a baseball field, which MPCA staff considers an active
recreational use, at least two (2) feet of non impacted, non debris containing fill from a native source
shall be placed as a cover over the Site. This will ensure that a cover is in place over any potentially ACM
containing fill /soil and that human health is protected.
Mr. Gregory Ewig
Mr. Paul Demuth
Page 2
April 21, 2011
Please note the disclaimers found in Attachment A. If you have any questions on the above, please
contact Shanna Schmitt at 651 757 -2697 or Patrice Jensen at 651 757 -2465.
Sincerely,
Sanna Schmitt
Hydrogeologist
Superfund, RCRA and Voluntary Cleanup Section
Remediation Division
SS /PJ:jmp
Attachment
cc: Donovan Hannu, ATC Associates, Inc.
Jason Lindahl, City of Rosemount
David Swenson, Dakota County
Katie Koelfgen /Jennifer Lopac, MPCA Industrial Division
E
1. Reservation of Authorities
The MPCA Commissioner reserves the authority to take any appropriate actions with respect to any
release, threatened release, or other conditions at the Site. The MPCA Commissioner also reserves the
authority to take such actions if the voluntary party does not proceed in the manner described in this
letter or if actions taken or omitted by the voluntary party with respect to the Site contribute to any
release or threatened release, or create an imminent and substantial danger to public health and
welfare.
2. No MPCA Assumption of Liability
The MPCA, its Commissioner and staff do not assume any liability for any release, threatened release or
other conditions at the Site or for any actions taken or omitted by the voluntary party with regard to the
release, threatened release, or other conditions at the Site, whether the actions taken or omitted are in
accordance with this letter or otherwise.
3. Letter Based on Current Information
ATTACHMENT A
DISCLAIMERS
DCTC LEASED PROPERTY
MPCA VIC PROJECT NUMBER VP22482
All statements, conclusions and representations in this letter are based upon information known to the
MPCA Commissioner and staff at the time this letter was issued. The MPCA Commissioner and staff
reserve the authority to modify or rescind any such statement, conclusion or representation and to take
any appropriate action under his authority if the MPCA Commissioner or staff acquires information after
issuance of this letter that provides a basis for such modification or action.
4. Disclaimer Regarding Use or Development of the Property
The MPCA, its Commissioner and staff do not warrant that the Site is suitable or appropriate for any
particular use.
5. Disclaimer Regarding Investigative or Response Action at the Property
Nothing in this letter is intended to authorize any response action under Minn. Stat. 115B.17, subd. 12.
Page 1 of 1
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DATE: April 13, 2011
TO: Paul Demuth, Dakota County Technical College
CC: Andrew Brotzler, Director of Public Works /City Engineer
Jason Lindahl, Planner
Dan Schultz, Park Recreation Director
Brian Kelly, TKDA
FROM: Phil Olson, Assistant City Engineer
RE: DCTC Baseball Complex
Submittal:
Prepared by TKDA, the DCTC Baseball Complex, dated July 19, 2010, was received August 20,
2010. Additional follow -up questions were received September 3, 2010. The following review
comments were generated from the following documents included in the submittal:
1. Email with plan review questions from Darren Schwankl dated September 3, 2010.
2. Dakota County Technical College Baseball Complex Letter -dated August 20, 2010
3. Dakota County Technical College Stormwater Volume Design Calculations -dated June 14,
2010
4. Dakota County Technical College Pre Treatment Design Calculations dated August 12,
2010
5. Dakota County Technical College Swale Design Calculations dated August 20, 2010
6. Dakota County Technical College Stormwater Basing Design Calculations dated August
20, 2010
7. Dakota County Technical College Drainage Plan -Exh. 1 dated July, 19, 2010
8. Dakota County Technical College Baseball Complex Construction Documents dated July
19, 2010
9. Baseball Complex Project letter from TKDA Dated March 28, 2011
Stormwater Quality and Quantity Review
MEMORANDUM
4 ROSEMOUNT
PUBLIC WORKS
1. As proposed in the TKDA letter, the existing gravel parking lot north of the ballfield area
shall be restored to its natural habitat. The gravel substrate shall be removed and replaced
with native soils and wild prairie habitat plantings.
2. The proposed swale and pretreatment cell along the north side of the infiltration basin may
be eliminated from the plan. This system is not required due to the removal of the gravel
parking lot and the installation of natural habitat.
3. The proposed drainage swale rational method calculations indicate that a 0.5% slope will be
constructed. The City grading plan criterion as specified by 6d in the Engineering Guidelines
is a minimum slope of 2.0 The design frequency of 2 -year event under vegetated
conditions has a capacity of 1.1cfs which does not convey the 2 -year event to the
pretreatment cells. The drainage swales should provide adequate capacity to direct the 2 -year
event to the treatment cells prior to discharge to the infiltration basin.
DCTC Construction Plans:
Sheet L1.1 —Site Plan
1. The trees located in the diversion swale on the west side of the pretreatment cell and
infiltration basin shall be removed to avoid obstruction of drainage to the pretreatment
basin.
2. The placement of trees in the emergency overflow route to the south should be revised.
Sheet L2.1 Details
1. The size of the diversion swale should be increased to convey the 2 -year event under
vegetated conditions to each treatment cell. It is requested that the swale details be revised
accordingly and resubmitted for review.
Should you have any questions or comments regarding the item listed above, please contact me at
651- 322 -2015.