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Approval Letter ABP 7th 5-30-07 CITY OF CHANHASSEN 7700 Market Boulevard PO Box 147 Chanhassen, MN 55317 Administration Phone: 952.227.1100 Fax: 952.227.1110 Building Inspections Phone 952.227.1180 Fax: 952.227,1190 Engineering Phone: 952.227,1160 Fax: 952.227.1170 Finance Phone: 952.227.1140 Fax: 952.227.1110 Park & Recreation Phone: 952.227,1120 Fax: 952.227,1110 Recreation Center 2310 Coulter Boulevard Phone: 952.227,1400 Fax: 952.227.1404 Planning & Natural Resources Phone: 952.227.1130 Fax: 952.227.1110 Public Works 1591 Park Road Phone: 952,227,1300 Fax: 952.227.1310 Senior Center Phone: 952,227,1125 Fax: 952.227,1110 Web Site 'INIW.ci .chanhassen. mn.us May 30, 2007 Mr. Joe Smith Chaska Gateway Partners, LLP c/o Steiner Development, Inc. 3610 County Road 101 Wayzata, MN 55391 Re: Arboretum Business Park 7th Addition - Planning Case 07-10 Dear Mr. Smith: This letter is to confirm that on May 29,2007, the Chanhassen City Council approved the following: A. Preliminary and fmal plat for two lots and one outlot (Arboretum Business Park 7th Addition), plans prepared by Schoell & Madson, Inc., dated April 16, 2007, subject to the following conditions: 1. Submit 1 :200 scale plan of propo,sed lots (required for addressing purposes). 2. A lO-foot clear space must be maintained around fire hydrants, i.e., street lamps, trees, shrubs, bushes, Xcel Energy, Qwest, cable TV and transformer boxes. This is to ensure that fire hydrants can be quickly located and safely operated by firefighters. 3. No burning permits shall be issued for trees to be removed. Trees and shrubs must either be removed from site or chipped. 4. The developer shall be responsible for planning, engineering, and constructing the "wetland traiL" Connection points for this new trail shall be the terminus of the Trotters Ridge trail, the intersection of Century Boulevard and West 82nd Street, and the intersection of Century Boulevard and Water Tower Place. Bid documents, including plans and specifications, shall be approved by the Park & Recreation Director and City Engineer prior to soliciting bids. Project bidding shall occur in a competitive environment with a minimum of three bids being received. The results of the bidding process shall be reviewed with the Park & Recreation Director and City Engineer prior to award. Cash payment for trail construction shall be made from the City of Chanhassen to Steiner Development upon completion, inspection, and acceptance of the trail. 5. Trail easements within Lots 1 and 2 and Outlot A, Arboretum Business Park 7th Addition (formerly Outlot C, Arboretum Business Park) shall be dedicated to the City to accommodate the "wetland trail". 6. The developer shall pay trail fees in the amount of $10,190.00 prior to the recording of the final plat. The City 01 Chanhassen · A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. Mr. Joe Smith Arboretum Business Park 7th Addition Planning Case 07-10 May 30, 2007 Page 2 of 4 7. The developer must prepare plans depicting an agreed-upon trail alignment and details for a required bridge crossing and typical construction cross section for a lO-foot wide trail prior to recording the final plat. 8. A wetland buffer with a minimum width of 16.5 feet shall be maintained around all AglUrban wetlands. Wetland buffer areas shall be preserved, surveyed and staked in accordance with the City's wetland ordinance. The applicant shall install wetland buffer edge signs, under the direction of City staff, before construction begins and shall pay the City $20 per sign. All structures shall maintain a setback of at least 40 feet from the wetland buffer edge. The wetland buffer setback shall be shown on the plans. 9. All structures shall be set back at least 40 feet from the Bluff Creek primary zone. The first 20 feet of the setback from the primary zone cannot be disturbed. The plans shall be revised to show the primary zone boundary, the 40-foot setback from the primary zone and the 20- foot buffer area adjacent to the primary zone. If alteration is proposed within the 20-foot buffer area adjacent to the primary zone, a variance will be required. 10. Signage for the Bluff Creek Overlay District should be posted at least every 300 feet along the primary zone boundary. 11. The general notes on erosion and sediment controls are incomplete. A new SWPPP shall be developed by the engineer for the site. The SWPPP shall be in place prior to applying for the NPDES permit. Additional information regarding SWPPP requirements can be obtained through the MPCA Storm Water Web Site. The SWPPP shall include all details, sequencing of the project and seeding and mulching specifications. 12. Temporary and permanent erosion control plans and details shall be included in the plans. Temporary erosion control may consist of type 1 mulch, as well as temporary and permanent seed mixes. Erosion control blanket shall be installed on all slopes greater than or equal to 3:1. All exposed soil areas shall have temporary erosion protection or permanent cover year round, according to the following table of slopes and time frames: Type of Slope Steeper than 3:1 10:1 t03:1 Flatter than 10: 1 Time 7 days 14 days 21 days (Maximum time an area can remain open when the area is not actively being worked.) These areas include constructed storm water management pond side slopes, and any exposed soil areas with a positive slope to a storm water conveyance system, such as a curb and gutter system, storm sewer inlet, temporary or permanent drainage ditch or other natural or man made systems that discharge to a surface water. 13. Inlet controls are needed for all inlets throughout the project and shall be installed within 24 hours of inlet installation prior to casting. Filter fabric held down by steel plates with 12" of %-inch rock over each cover may be used. Once casting of inlets takes place, inlet controls Mr. Joe Smith Arboretum Business Park 7th Addition Planning Case 07-10 May 30,2007 Page 3 of 4 shall be installed within 24 hours. Inlet protection shall be maintained on a regular basis. The plans and SWPPP shall be revised to include standard details for all inlet protection devices. 14. Manholes with two-foot sumps shall be installed as the last road-accessible structures prior to discharge into the stormwater pond. 15. Chanhassen Type 2, Heavy Duty silt fence shall be installed around all wetlands and stormwater ponds; Chanhassen Type 1 silt fence shall be used around the remaining areas. All areas of silt fence shown on the plan that are not parallel to the proposed contours of the property shall to have J-Hooks installed every 50 feet. 16. The existing stormwater pond and areas downstream of the pond shall be protected from sediment produced by the construction site. For example, if turbid water is found in the stormwater pond, a plug could be placed in the flared-end section (PES) of the outlet structure so sediment does not go off-site. Once settling of the sediment occurs, the water could be slowly released. 17. Street cleaning of soil tracked onto public streets shall include daily street scraping and street sweeping as-needed. Provisions for street cleaning shall be included in the SWPPP. 18. Drainage and utility easements (minimum 20 feet in width) shall be provided over all existing and proposed storm water infrastructure. 19. The total SWMP fee, due payable to the City at the time of final plat recording, is $102,838. 20. The developer may dedicate Outlot A, Arboretum Business Park ih Addition to the City. 21. The developer's engineer must submit hydrology calculations that verify that the site design is consistent with the preliminary plat assumptions, and that the pond meets NPDES requirements for this site. 22. When a site plan for Lot 2 is submitted for approval, the applicant must submit calculations verifying that the proposed design meets the pond design assumptions and meets other agency requirements (e.g. NPDES Phase 2 permit). 23. Upon approval of the site plan for Lot 2, the applicant must post an escrow for the street repair required for the utility service extension. B. Conditional Use Permit for development within the Bluff Creek Corridor subject to the following conditions: 1. All structures shall be set back at least 40 feet from the primary zone. The first 20 feet of the setback from the primary zone cannot be disturbed. The plans shall be revised to show the Mr. Joe Smith Arboretum Business Park 7th Addition Planning Case 07-10 May 30, 2007 Page 4 of 4 primary zone boundary, the 40-foot setback from the primary zone and the 20-foot buffer area adjacent to the primary zone. If alteration is proposed within the 20-foot buffer area adjacent to the primary zone, a variance will be required. 2. Signage for the Bluff Creek Overlay District should be posted at least every 300 feet along the primary zone boundary. C. Site Plan for a 51,800 square-foot office/warehouse building (Mamac Systems) with a variance to permit only 32 percent building transparency on the western building elevation and with a 20-foot setback variance for the drive aisle in the southeast comer of the site for development within the Bluff Creek Corridor on Lot 1, Block 1, Arboretum Business Park 7th Addition, plans prepared by Clark Engineering Corporation and Mohagan Hansen Architectural Group, dated April 13, 2007. Two signed mylar copies of the final plat shall be submitted to our office for signatures. Two 1 "=200' scale mylar reductions of the final plat and one 1 "=200' scale mylar reductions of the final plat with just street names and lot and block numbers shall be submitted. In addition, a digital copy in .dxf format and a digital copy in .tif format (pdf compatible) of the final plat shall be submitted. You will also need to submit trail easement(s) and a warrantee deed conveying the Outlot A to the City to be recorded. Finally, a check payable to the City of Chanhassen in the amount of $113,088.00 shall be submitted to cover the GIS fee ($60.00), park fees ($10,190.00) and SWMP fees ($102,838.00). The City will submit all the necessary documents to Carver County for recording of the subdivision. If you have any questions or need additional information, please contact me at (952) 227-1131 or bgenerous@ci.chanhassen.mn.us. .~ Robert Generous, AICP Senior Planner RG:ktm ec: Kate Aanenson, Community Development Director Alyson Fauske, Assistant City Engineer Jerry Mohn, Building Official g:\plan\2007 planning cases\07 -1 0 arboretum business park 7th addition-mamac systems\approvalletter plat and cup. doc