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PC Staff Report 06-21-2011PC DATE: June 21, 2011 1 CC DATE: July 11, 2011 REVIEW DEADLINE: July 19, 2011 CASE #: 11 -05 BY: AF, RG, JM, ML, JS PROPOSED MOTION: "The Chanhassen Planning Commission recommends that City Council approve the Site Plan for a water tower located at Minnetonka Middle School West, plans prepared by SEH dated February 22, 2011, subject to the conditions of the staff report; and adoption of the findings of fact and recommendation." SUMMARY OF REQUEST: The developer is requesting Site Plan Review for construction of a water tower. LOCATION: 6421 Hazeltine Boulevard (Minnetonka Middle School West site) APPLICANT: City of Chanhassen Independent School District #276 7700 Market Blvd. 5621 County Road 101 Chanhassen, MN 55317 Minnetonka, MN 55345 (952) 227 -1169 (952) 401 -5024 poehme&ci.chanhassen.mn.us PRESENT ZONING: 2020 LAND USE PLAN ACREAGE: 30.7 acres OI, Office Institutional Public /Semi - Public LEVEL OF CITY DISCRETION IN DECISION - MAKING: The City's discretion in approving or denying a site plan is limited to whether or not the proposed project complies with Zoning Ordinance requirements. If it meets these standards, the City must then approve the site plan. This is a quasi-judicial decision. PROPOSAL /SUMMARY The City of Chanhassen is requesting site plan approval to construct a 750,000 gallon water tower on the Minnetonka Middle School West site. Utility services are a permitted use on the site. The water tower will be located in the extreme southwest corner of the property between the school building and the south and west property lines. To the south of the tower are single - family homes. West of the tower is the right -of -way for Highway 41. The proposed water tower provides the storage capacity needed within the high- pressure zone in the City. CITY OF CHANHASSEN Planning Commission Water Tower Site Plan — Planning Case 2011 -05 June 21, 2011 Page 2of8 This site was evaluated along with five other locations for the high zone water tower and was determined to be the best location. In November 2008, the city completed an update to the Comprehensive Water Plan. As part of the plan, a storage analysis was performed that recommended additional storage be constructed in the existing high service zone. The high zone water area has seen significant growth in recent years, which has driven the need for additional storage capacity. The city has two main pressure zones. The low zone area services about 88% of the current city demand. Two water towers service this area along with the east water treatment plant. The high zone area is serviced by two wells and a 200,000 Melody Hill Tank located next to Minnetonka Middle School West. The tower was constructed in 1971. The population of Chanhassen in 1970 was 4,875. Today the population of Chanhassen is 22,952. The high zone is mainly in a residential service area which has seen significant growth in the past 15 years. Currently, the demand in the high zone area can be as little as 100,000 gallons a day during the winter months and as much as 1,800,000 during peak summer time usage (2007). Since the high zone does not have much storage capacity, during high demand periods the tank cycles continuously, which causes many problems. The high cycling causes condensation to form on the tank which accelerates tank corrosion. The continuous cycling also puts additional stress on pumps and motors needed to supply the tower and is a very inefficient way to supply water. Also, the undersized storage facility leaves little time for utility staff to respond to power outages and start auxiliary power generation. In addition, the tank at this time is undersized for fire flow design. One of the most critical roles that a water distribution system provides, especially in urban areas, is fire protection. The Insurance Services Office (ISO) provides a score for municipalities based on their ability to meet industry standards for required fire flow based on building size, occupancy class, construction type, etc. Lower scores indicate better ability of systems to suppress fires and typically result in lower insurance rates for commercial and industrial property. The standard required available fire flow that ISO has is 3,500 gpm for 3 hours. Since this is mostly a residential area and all the commercial buildings are sprinkled, the fire marshal recommends using a 2,750 gpm for two -hour fire flow. Water storage capacity should be adequate to sustain normal system demands as well as fire protection operations. The existing Melody Hill Tank is not capable of providing 2,750 gpm as recommended. In addition, the amount of storage required to provide two hours of 2,750 gpm of available fire flow for full build -out is shown to be approximately 725,000 gallons. This volume gives the city capacity to supply a 2,750 gpm fire flow rate for two hours while concurrently meeting projected maximum day demands on the system. The standard tank size for this demand is 750,000 gallons. Staff is recommending approval of the site plan for a 750,000 gallon water tower subject to the conditions of this report. Planning Commission Water Tower Site Plan — Planning Case 2011 -05 June 21, 2011 Page 3 of 8 APPLICABLE REGUATIONS Chapter 20, Article II, Division 6, Site Plan Review Chapter 20, Article XXI, "OI" Office and Institutional District BACKGROUND On January 24, 2011, the Chanhassen City Council approved an interim use permit to permit site grading for the tennis courts at Minnetonka Middle School West (Planning Case #2011 -01). On February 27, 2006, the Chanhassen City Council approved Interim Use Permit #2006 -03 to permit the grading of approximately 3,400 cubic yards for an infiltration basin and drainage swales to reduce downstream erosion and sedimentation along Highway 41 (Planning Case #2006 -03). On June 9, 2003, the Chanhassen City Council approved Interim Use Permit #2003 -02 to permit grading in excess of 1,000 cubic yards to install a storm water pond and reconfigure the bus circulation route and parking area on the north side of the school. GENERAL SITE PLAN /ARCHITECTURE The height of the 750,000 gallon water tower is approximately 170 feet to the very top of the tower. Besides the tower, site improvements include a bituminous driveway and fencing around tank; grading of the site to raise the location of the proposed tower to reduce the height of the tower; relocation of the storm water retention pond; relocation of storm water piping/outlet structure; relocation of water service to the school building; relocation of approximately 500 feet of overhead power lines; and installation 200 feet of 16 -inch water main to TH 41. The tank bowl will be a steel shell painted sky blue to minimize the visual impact of the structure with the green Chanhassen Maple Leaf. The tank diameter is 60 feet. The pedestal will either be a steel shell painted sky blue or a composite concrete material that will be stamped with architectural patterns to mimic blocks or brick. The pedestal diameter shall be 28 -32 feet. LIGHTING /SIGNAGE Lighting shall be limited to requirements of the Federal Aviation Administration and a single light above the overhead door. The light fixture shall have a 90- degree cut -off angle and be shielded from off -site view. The only signage on the water tower will be the Chanhassen Maple Leaf Planning Commission Water Tower Site Plan — Planning Case 2011 -05 June 21, 2011 Page 4 of 8 ACCESS Access to the proposed water tower will be by the existing middle school access on the east side of Highway 41. A 12 -foot wide driveway is proposed from the southwest side of the existing pavement. EROSION CONTROL 1. If the total disturbance exceeds one (1) acre in area, an NPDES General Stormwater Permit for Construction Activities will be needed from the MPCA. 2. If an NPDES Permit is needed, a Storm Water Pollution Prevention Plan (SWPPP) will need to be prepared and submitted for review and the conditions of the permit must be met. 3. The outlet to the right -of -way for Minnesota Trunk Highway 41 will need to be stabilized immediately upon connection. 4. The pond must be protected from sedimentation to the greatest extent practicable during construction and all sediment deposited during construction must be removed to return the pond to the design conditions. A record drawing shall be prepared showing this condition has been met. 5. The plan must address the comments from the Carver County SWCD. STORM WATER MANAGEMENT 1. The proposed conditions will result in a decrease in runoff rate for the 2, 10 and 100 -year events and an increase in total phosphorus and suspended solids removal. 2. The underdrain bedding material shall be washed river rock wrapped in a high -flow filter fabric. 3. According to the Carver County Soil Survey and double ring infiltrometer tests performed by the School District, this site may well be conducive to infiltration. To this end an additional hold down should be constructed below the underdrain such that the feature is a filtration/partial recharge feature as described in the Minnesota Stormwater Manual. 4. Eliminate CBMH 109 and bulkhead the outlet from the upstream structure to the west. Move CBMH 107 to the east into the location of the existing manhole. Replace this structure as needed and outlet to the pond. The end result will be a single outlet point into the first cell near the pinch point of the 1035 -foot contour. GRADING Based on the consultant's calculations, over 5,000 cubic yards of loose material will be cut from the site, with almost 2,900 cubic yards of loose material being filled within the site. Excess Planning Commission Water Tower Site Plan — Planning Case 2011 -05 June 21, 2011 Page 5 of 8 material will be removed from the site. Haul routes must be established for the trucking of material off the site. A tiered retaining wall system is proposed on the west side of the proposed tower. A building permit is required for the retaining walls since they will be at least four feet high. The retaining walls must be designed by an engineer registered in the State of Minnesota. The following additional information must be shown on the grading plan: `M G.. / a) Show the top and bottom of wall elevations. b) Provide more spot elevations along the driveway and the area to the north of the driveway, ensuring that minimum I% grade is achieved on paved surfaces and minimum 2% grade is achieved in the green area. LANDSCAPING/TREE PRESERVATION There are existing trees at the edge of the grading limits that are proposed to be preserved. Staff recommends that tree protection fencing be installed at the edge of the grading limits. MISCELLANEOUS A building permit is required. Geotechnical investigation and report required. All plans must be prepared and signed by design professionals licensed in the State of Minnesota. Portions of retaining wall(s) exceeding four feet in height must be professionally designed. The owner and/or their representative shall meet with the Inspections Division to discuss plan review and permit procedures. UTILITIES Some private storm sewer and sanitary sewer lines must be relocated due to the proposed grading. A plumbing permit is required for the proposed sewer relocations. A 16 -inch trunk watermain is proposed between the new water tower and the existing trunk watermain within the east side of the Highway 41 right -of -way. Contact the Utility Department at 952- 227 -1300 a minimum of 48 hours before tapping into the existing watermain. MnDOT permits are required for the installation of the proposed watermain and storm water pond outlet pipe. Planning Commission Water Tower Site Plan — Planning Case 2011 -05 June 21, 2011 Page 6 of 8 COMPLIANCE TABLE Building Height Building Setback OI WATER TOWER Water Towers are exempt from the district height requirements pursuant to Section 20 -907 (b) (1) of the Chanhassen City Code. Hard Surface Coverage Lot Area RECOMMENDATION W- 35'S -15' 65% 0.344 acre W- 40'S -41' 33% 30.7 acres Staff recommends that the Planning Commission recommend approval of the site plan subject to the conditions of the staff report and adoption of the attached findings of fact and recommendation. The recommended conditions of approval are as follows: 1. The pedestal shall be painted sky blue if a steel shell, or if constructed of a composite concrete material shall be stamped with architectural patterns to mimic block or brick. 2. The light fixture shall have a 90- degree cut -off angle and be shielded from off -site view. 3. Haul routes must be established for the trucking of material off the site. 4. A building permit is required for the retaining walls since they will be at least four feet high. 5. The retaining walls must be designed by an engineer registered in the State of Minnesota. 6. The following additional information must be shown on the grading plan: a) Show the top and bottom of wall elevations. b) Provide more spot elevations along the driveway and the area to the north of the driveway, ensuring that minimum 1 % grade is achieved on paved surfaces and minimum 2% grade is achieved in the green area. 7. A plumbing permit is required for the proposed sewer relocations. Contact the Utility Department at 952- 227 -1300 a minimum of 48 hours before tapping into the existing watermain. 9. MnDOT permits are required for the proposed watermain and storm water pond outlet pipe. Planning Commission Water Tower Site Plan — Planning Case 2011 -05 June 21, 2011 Page 7 of 8 10. Tree protection fencing shall be installed at the edge of the grading limits. 11. A building permit is required. 12. Geotechnical investigation and report required. 13. All plans must be prepared and signed by design professionals licensed in the State of Minnesota. 14. Portions of retaining wall(s) exceeding four feet in height must be professionally designed. 15. The owner and or their representative shall meet with the Inspections Division to discuss plan review and permit procedures. 16. If the total disturbance exceeds one (1) acre in area an NPDES General Stormwater Permit for Construction Activities will be needed from the MPCA. 17. If an NPDES Permit is needed, a Storm Water Pollution Prevention Plan will need to be prepared and submitted for review and the conditions of the permit must be met. 18. The outlet to the right -of -way for MN Trunk Highway 41 will need to be stabilized immediately upon connection. 19. The pond must be protected from sedimentation to the greatest extent practicable during construction and all sediment deposited during construction must be removed to return the pond to the design conditions. A record drawing shall be prepared showing this condition to be met. 20. The plan must address the comments from the Carver County SWCD. 21. The proposed conditions will result in a decrease in runoff rate for the 2, 10 and 100 -year events and an increase in total phosphorus and suspended solids removal. 22. The underdrain bedding material shall be washed river rock wrapped in a high -flow filter fabric. 23. According to the Carver County Soil Survey and double ring infiltrometer tests performed by the School District, this site may well be conducive to infiltration. To this end an additional hold down should be constructed below the underdrain such that the feature is a filtration/partial recharge feature as described in the Minnesota Stormwater Manual. 24. Eliminate CBMH 109 and bulkhead the outlet from the upstream structure to the west. Move CBMH 107 to the east into the location of the existing manhole. Replace this structure as needed and outlet to the pond. The end result will be a single outlet point into the first cell near the pinch point of the 1035 -foot contour. Planning Commission Water Tower Site Plan — Planning Case 2011 -05 June 21, 2011 Page 8 of 8 ATTACHMENTS 1. Findings of Fact and Recommendation. 2. Reduced Copy Title Sheet. 3. Reduced Copy Existing Conditions. 4. Reduced Copy Grading Plan. 5. Reduced Copy Erosion Control Plan. 6. Reduced Copy Removals. 7. Reduced Copy Site and Utility Improvements. 8. Reduced Copy Details. 9. Reduced Copy Project Location. 10. Letter from Chip Hentges (Carver Soil and Water Conservation District) to Robert Generous dated June 7, 2011. 11. Public Hearing Notice and Mailing List. gAplan\2011 planning cases \11 -05 water tower site plan\staff report water tower.doc CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA FINDINGS OF FACT AND RECOMMENDATION RIZIM, Application of the City of Chanhassen and Independent School District #276, for Site Plan Review for a 750,000- gallon, 170 -foot tall water tower in the Office Institutional District (OI). On June 21, 2011, the Chanhassen Planning Commission met at its regularly scheduled meeting to consider the application of the City of Chanhassen and Independent School District #276 for Site Plan review for a 750,000- gallon, 17 -foot tall water tower for property located at 6421 Hazeltine Boulevard. The Planning Commission conducted a public hearing on the site plan which was preceded by published and mailed notice. The Planning Commission heard testimony from all interested persons wishing to speak and now makes the following: FINDINGS OF FACT 1. The property is currently zoned Office Institutional District (OI). 2. The property is guided by the Land Use Plan for Public /Semi - Public use. 3. The legal description of the property is: See attached Exhibit A 4. Site Plan Findings: a. The proposed development is consistent with the elements and objectives of the City's development guides, including the comprehensive plan, official road mapping, and other plans that may be adopted; Finding: The development of the site is consistent with the City's development guides and comprehensive plan. b. The proposed development is consistent with the site plan review requirements; Finding: The site is consistent with the site plan review requirements and complies with all zoning code requirements. c. The proposed development preserves the site in its natural state to the extent practicable by minimizing tree and soil removal and designing grade changes to be in keeping with the general appearance of the neighboring developed or developing or developing areas; Finding: The propose tower is in a location that has previously been altered with the development of the site. The proposed development is in keeping with the general appearance of the neighboring developed or developing areas. The proposed development will improve surface water treatment of run -off. d. The proposed development creates a harmonious relationship of building and open space with natural site features and with existing and future buildings having a visual relationship to the development; Finding: The development will be harmonious with the existing site buildings and features. e. The proposed development creates a functional and harmonious design for structures and site features, with special attention to the following: 1) An internal sense of order for the buildings and use on the site and provision of a desirable environment for occupants, visitors and general community; Finding: The proposed expansion is in a logical and practical location on the site. 2) The amount and location of open space and landscaping; Finding: The proposed tower is located in a location that was previously altered. 3) Materials, textures, colors and details of construction as an expression of the design concept and the compatibility of the same with adjacent and neighboring structures and uses; and Finding: The proposed tower will be in keeping with the existing building. 4) Vehicular and pedestrian circulation, including walkways, interior drives and parking in terms of location and number of access points to the public streets, width of interior drives and access points, general interior circulation, separation of pedestrian and vehicular traffic and arrangement and amount of parking. Finding: Access to the site shall remain as exists. Parking areas and circulation comply with code requirements. 5) Protects adjacent and neighboring properties through reasonable provision for surface water drainage, sound and sight buffers, preservation of views, light and air and those aspects of design not adequately covered by other regulations which may have substantial effects on neighboring land uses. Finding: Surface water is being directed to an improved storm water system. The tower is located in a logical location on the site. 5. The planning report, Planning Case #11-05 dated June 21, 2011, prepared by Robert Generous, et al, is incorporated herein. 2 RECOMMENDATION The Planning Commission recommends that the City Council approve Planning Case #2011 -05 for Site Plan approval for a 750,000- gallon, 170 -foot tall water tower on property located at 6421 Hazeltine Boulevard. ADOPTED by the Chanhassen Planning Commission this 21 sc day of June, 2011. CHANHASSEN PLANNING COMMISSION raw Its Chairman 3 EXHIBIT A LEGAL DESCRIPTION The Southwest Quarter (SW 1/4) of the Northwest Quarter (NW 1/4) of Section Three (3). Township One Hundred Sixteen (116). Range Twenty Three (23) West according to the U. S. Government Survey thereof, excepting therefrom the 33/100the acres conveyed by deed recorded in the office of the Register of Deeds of Carver County, Minnesota, in Book 8 of Deeds, page 400, and that part thereof conveyed by deed recorded in the office of the Register of Deeds of Carver County, Minnesota, in Book 41 of Deeds, page 322. and subject to the right, title and interest of the State of Minnesota in that strip of land conveyed by deed recorded in the office of the Register of Deeds of Carver County, Minnesota, In Book 33 of Deeds, page 25. Also that part of Lot E, Bardwell Acres, not conveyed by said deed recorded in the office of the Register of Deeds of Carver County, Minnesota, in Book 41 of Deeds. page 322. Subject to a permanent easement for roadway purposes as recorded In the office of the Register of Deeds of Carver County. Minnesota. in Book 64 of Deeds, page 32 4 3'q s� ee 750,000 GALLON WATER TOWER FOR THE CITY OF CHANHASSEN MINNESOTA CITY OF CHANHASSEN y T 7 i s 6� p �3 �O ,R N LOCATION MAP 0 SCALE CITY HALL 8 jgjaj 1 W N ��ggf W �h 0 0- - w n U a 5 3 0 3r e gk88 8 caa o w N 4 u GG1 MINNETONKA MIDDLE SCHOOL WEST 3� I.S.D. 276 N ]0 30 b weN i0 M 8 5 �aa�iE W t , V1 C s � d A Y r Z N O W 3 3 X 03 8 X2 O v 3 O U o� Y � F z �+ z 771 1 \ \ ..... (APPROX) R N 1 V R 1037 2(E .... \ \\ / incvo - - \ R1M 1041 `INV.. r07C ; 35 oaten \ 2- 12 CLAY .. II II "... \\ _RIM 1041.4 Z ; / 1 PVc Rz> F INV =1035 3 A \ \ NV= 1038.2(N INV= 1038.0((E/S) I°u \ \ INV= 1037.9(W) \ . \ p �C.1 A`. IpfU ib-55 \ : •.�18CPP .. — ... CP ?. �, /" _. •.:,.'' 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MULCH, DISK ANCHOR AND FERTIUZE ALL DISTURBED AREAS WITHIN 14 DAYS OF FINISH GRADING. .... . ... . . ..... - - - - - - --- - ... ... ....... 7777777�� SAN MH I TC- J 053 50 INV-1036.56(SE) MINNETONKA MIDDLE SCHOOL WEST I.S.D. 276 50 lF IS RCP CBM H CL V 0 1.92% TC= 109 1042.00 ......... . . .... .... . 70 LF 12 PVC SDR 35 0 0.88% v SAN MH 2 TC-1053.00 1— 1017 11(11 8' PERFORATED PVC 00. 1%, BEDDED ON FI LTRATION MEDIA (SEE' DETAIL SHEET.) FES 106 LF 12 RCP V 0 1.22% \ CBMH �107 TC _1043.00 S U5. 1 0 -10 , 50 lF IS RCP CBM H CL V 0 1.92% TC= 109 1042.00 ......... . . .... .... . - — — — — — — — — — — CONIFEROUS TREES (TYP). )MINOUS ORNEWAH l HYDRANT AND 5" GV & BOX :16� DOUBLE SWING GATE so w flo 6' TOPSOIL BITUMINOUS DRIVEWAY TOPSOIL PRECAST OPENING FOI INV. 6' PRECAST - 6 POURED LH CASTING R - 3e2 ItML 2 -a 2' THICK ADJUST. RINGS W/ MORTAR JOIMS-PLASTER OUTSIDE, STRIKE INSIDE CLEAN PRECAST OPENING FOR A' PVC INV. = 1032.50' 1) OUTLET STRUCTURE DETAIL ca00 NTS WIDTH VARIES- SEE GRADING PLAN COMPOSTED TOPSOIL (4" DEPTH) 6 "TOPSOIL —� TOPSOIL TOP OF ENGINEERED SOIL I BASIN BOTTOM AT 1035.00' ENGINEERED SOIL WELL BLENDED MIXTURE (BY VOLUME): 70% SAND MEETING MN /DOT 3149,21 "FINE FILTER AGG:' 25 %0 RGANIC LEAF COMPOST MEETING MN /DOT 3690.22B GRADE 25 %SANDY LOAM TOPSOIL 1 V:3H MAX SIDE SLOPE 1 OF ENGII JEERED SOIL AT 1032.50 I V:IH SLOPE UNDISTURBED. UNCOMPACTED IN -SITU SC \ \ / SAND MEDIA, WASHED SAND. SCARIFY TO A MIT i0 JIM DEPTH OF I2' PRIOR /\ MN /DOT 31 a9.2J FOR FINE FILTER AGG. PLACEMENT OF SAND MEDIA d ENGINEERED SOIL IINCIDENTALI B" DIAMETER PERFORATED SUBSURFACE DRAIN SEE DRAINAGE PLANS FOR LOCATION GEOTEXTILE FABRIC, MN /DOT TYPE II (i) POND BOTTOM TYPICAL CROSS - SECTION caoo NTS - - -, -/ - -- /v —. ---L -- -- .. _ :.. . . ........— — — —,— MELODY — -- HILL ROAD "'— ` 1 \ I � Y I �r.. t :: _. �� /�•�,. i PROPERTY UNE (TYP) A-0 i '^'r � ,M1NNEfONKA MIDDLE SCHOOL WEST I.S.D. 276 / F ADD /T /ON -, All I / r f PROJECT LOCATION II /!!!/ �= — ! - ._ ....' / - - - ._ . E f .. .. ........, ., t'�j. P r CONSE RVATION DISTRICT It C ar` 11360 Hwy.212 t0 Suite 6 ti 1946 '` Colgone, MN 55322 ��ghhr $ •�,pv 0 Phone 952- 466 -5230 h "D:Hwww.co.carver.mn.us /SWCD /SWCD main.html Mission Statement: To provide leadership in conservation and teach stewardship of the soil, water, and related resources through a balanced, cooperative program that protects, restores, and improves those resources. June 7, 2011 Robert Generous, Senior Planner City of Chanhassen 7700 Market Boulevard Chanhassen, MN 55317 Re: Water Tower project The SWCD has reviewed the above mentioned preliminary development plan for erosion and sediment controls and water quality benefits. Following you will find my comments: -A National Pollution Discharge Elimination System permit will be required for this development. -The General Contractor who has overall charge of day to day operations needs to be on the NPDES Permit as the contractor. The Owner and or General Contractor have the responsibility for the NPDES permit, not the grading contractor. The owner must have an individual qualified to complete stormwater inspections. A box will need to be placed on site for these specific documents, and or kept in the project office. The Carver SWCD will be completing inspections of the rules of the NPDES permit and city ordnances to see if the owner and or contractor are in compliance with the permit. This permit is a self maintained permit. Guidelines of the permit can be found at the following web site: htti)://www.pea.state.mn.us/water/stormwater/storrnwater-c.html A Stormwater Pollution Preventive Plan ( SWPPP) will need to be developed for this site as it will have over 1- acre of disturbance. General Comments: The existing drainage from the 5+ acres of mostly impervious surfaces is very flashy and has caused sever erosion issues in the past at this site. The SWPPP will need to address how the construction of the water tower and the building of the new stormwater pond will be sequenced in order to handle the existing stormwater that drains to this spot. A plan will need to be developed AN EQUAL OPPORTUNITY EMPLOYER - that lays out the proper sequencing for the contractor to implement to create a protection for them and the city, as the downstream receiving waters is a shallow lake. - Perforated pipe needs to be documented. If drain tile will be PVC, the PVC pipe will need have additional holes drilled on site to meet the requirements of a typical plastic drain tile, and or order the equivalent. Traditional PVC drain tile only has holes drilled at the 4 — 8 o'clock. - Perforated drain tile should be placed off the bottom at an elevation of 1033.5 to allow for volume water retention storage for plants. The information I received did not have planting materials and I'm assuming the plants will be water loving plants that can handle both wet and dry conditions. If this is the case, by placing the tile on the bottom, conditions of the filtration media will become quite dry, verses placing the tile about a foot off the bottom. - The perforated tile should be placed in washed river rock and or equivalent instead of washed sand. Please include me with any correspondences of changes to this original concept plan, and also of any pre - construction meetings prior to start of construction. Sincerely, Chip Hentges CPESC Conservation Technician CITY OF CHANHASSEN AFFIDAVIT OF MAILING NOTICE STATE OF MINNESOTA) ) ss. COUNTY OF CARVER ) I, Karen J. Engelhardt, being first duly sworn, on oath deposes that she is and was on June 9, 2011, the duly qualified and acting Deputy Clerk of the City of Chanhassen, Minnesota; that on said date she caused to be mailed a copy of the attached notice of Public Hearing for the Water Tower Site Plan Review — Planning Case 2011 -05 to the persons named on attached Exhibit "A ", by enclosing a copy of said notice in an envelope addressed to such owner, and depositing the envelopes addressed to all such owners in the United States mail with postage fully prepaid thereon; that the names and addresses of such owners were those appearing as such by the records of the County Treasurer, Carver County, Minnesota, and by other appropriate records. K n J. En el rdt, D�efUy Clerk Subscribed and sworn to before me this � (� day of - -3 - Lx rw— , 2011. Notary 1' KIM T. MEUWISSEN Notary Public- Minnesota �''° ; ;a My Commission Expires Jan 31, 2015 Notice of Public Hearing Chanhassen Planning Commission Meeting Date & Time: Tuesday, June 21, 2011 at 7:00 p.m. This hearing may not start until later in the evening, depending on the order of the agenda. Location: City Hall Council Chambers, 7700 Market Blvd. Proposal: Request for Site Plan Review for construction of a water tower on ro erty zoned Office Institutional OI . Applicant: City of Chanhassen Property 6421 Hazeltine Boulevard (Minnetonka Middle School West) Location: A location map is on the reverse side of this notice. The purpose of this public hearing is to inform you about the applicant's request and to obtain input from the neighborhood about this project. During the meeting, the Chair will lead the What Happens public hearing through the following steps: at the Meeting: 1. Staff will give an overview of the proposed project. 2. The applicant will present plans on the project. 3. Comments are received from the public. 4. Public hearing is closed and the Commission discusses the project. If you want to see the plans before the meeting, please visit the City's projects web page at: www.ci.chanhassen.mn.us /sery /plan /11- 05.html If you wish to talk to someone about this project, please contact Bob Questions & Generous by email at bgenerous(d-)ci.chanhassen.mn.us or by Comments: phone at 952 - 227 -1131. If you choose to submit written comments, it is helpful to have one copy to the department in advance of the meeting. Staff will provide copies to the Commission. The staff report for this item will be available online on the project web site listed above the Thursday p rior to the Planning Commission meeting. City Review Procedure: • Subdivisions, Planned Unit Developments, Site Plan Reviews, Conditional and Interim Uses, Wetland Alterations, Rezonings, Comprehensive Plan Amendments and Code Amendments require a public hearing before the Planning Commission. City ordinances require all property within 500 feet of the subject site to be notified of the application in writing. Any interested party is invited to attend the meeting. • Staff prepares a report on the subject application that includes all pertinent information and a recommendation. These reports are available by request. At the Planning Commission meeting, staff will give a verbal overview of the report and a recommendation. The item will be opened for the public to speak about the proposal as a part of the hearing process. The Commission will close the public hearing and discuss the item and make a recommendation to the City Council. The City Council may reverse, affirm or modify wholly or partly the Planning Commission's recommendation. Rezonings, land use and code amendments take a simple majority vote of the City Council except rezonings and land use amendments from residential to commercial /industrial. • Minnesota State Statute 519.99 requires all applications to be processed within 60 days unless the applicant waives this standard. Some applications due to their complexity may take several months to complete. Any person wishing to follow an item through the process should check with the Planning Department regarding its status and scheduling for the City Council meeting. • A neighborhood spokesperson /representative is encouraged to provide a contact for the city. Often developers are encouraged to meet with the neighborhood regarding their proposal. Staff is also available to review the project with any interested person(s). • Because the Planning Commission holds the public hearing, the City Council does not. Minutes are taken and any correspondence regarding the application will be included in the report to the City Council. If you wish to have something to be included in the report, please contact the Planning Staff person named on the notification. Notice of Public Hearing Chanhassen Planning Commission Meeting Date & Time: Tuesday, June 21, 2011 at 7:00 P.M. This hearing may not start until later in the evening, depending on the order of the agenda. Location: City Hall Council Chambers, 7700 Market Blvd. Proposal: Request for Site Plan Review for construction of a water tower on property zoned Office Institutional OI . Applicant: City of Chanhassen Property 6421 Hazeltine Boulevard (Minnetonka Middle School West) Location: A location map is on the reverse side of this notice. The purpose of this public hearing is to inform you about the applicant's request and to obtain input from the neighborhood about this project. During the meeting, the Chair will lead the What Happens public hearing through the following steps: at the Meeting: 1. Staff will give an overview of the proposed project. 2. The applicant will present plans on the project. 3. Comments are received from the public. 4. Public hearing is closed and the Commission discusses the project. If you want to see the plans before the meeting, please visit the City's projects web page at: www.ci.chanhassen.mn.us /sery /plan /11- 05.html If you wish to talk to someone about this project, please contact Bob Questions & Generous by email at bgenerousCa)-ci.chanhassen.mn.us or by Comments: phone at 952 - 227 -1131. If you choose to submit written comments, it is helpful to have one copy to the department in advance of the meeting. Staff will provide copies to the Commission. The staff report for this item will be available online on the project web site listed above the Thursday p rior to the Planning Commission meeting. City Review Procedure: • Subdivisions, Planned Unit Developments, Site Plan Reviews, Conditional and Interim Uses, Wetland Alterations, Rezonings, Comprehensive Plan Amendments and Code Amendments require a public hearing before the Planning Commission. City ordinances require all property within 500 feet of the subject site to be notified of the application in writing. Any interested party is invited to attend the meeting. • Staff prepares a report on the subject application that includes all pertinent information and a recommendation. These reports are available by request. At the Planning Commission meeting, staff will give a verbal overview of the report and a recommendation. The item will be opened for the public to speak about the proposal as a part of the hearing process. The Commission will close the public hearing and discuss the item and make a recommendation to the City Council. The City Council may reverse, affirm or modify wholly or partly the Planning Commission's recommendation. Rezonings, land use and code amendments take a simple majority vote of the City Council except rezonings and land use amendments from residential to commercial /industrial. • Minnesota State Statute 519.99 requires all applications to be processed within 60 days unless the applicant waives this standard. Some applications due to their complexity may take several months to complete. Any person wishing to follow an item through the process should check with the Planning Department regarding its status and scheduling for the City Council meeting. • A neighborhood spokesperson /representative is encouraged to provide a contact for the city. Often developers are encouraged to meet with the neighborhood regarding their proposal. Staff is also available to review the project with any interested person(s). • Because the Planning Commission holds the public hearing, the City Council does not. Minutes are taken and any correspondence regarding the application will be included in the report to the City Council. If you wish to have something to be included in the report, please contact the Planning Staff person named on the notification. Disclaimer This map is neither a legally recorded map nor a survey and is not intended to be used as one. This map is a compilation of records, information and data located in various city, county, state and federal offices and other sources regarding the area shown, and is to be used for reference purposes only. The City does not warrant that the Geographic Information System (GIS) Data used to prepare this map are error free, and the City does not represent that the GIS Data can be used for navigational, tracking or any other purpose requiring exacting measurement of distance or direction or precision in the depiction of geographic features. If errors or discrepancies are found please contact 952 - 227 -1107. The preceding disclaimer is provided pursuant to Minnesota Statutes §466.03, Subd. 21 (2000), and the user of this map acknowledges that the City shall not be liable for any damages, and expressly waives all claims, and agrees to defend, indemnify, and hold harmless the City from any and all claims brought by User, its employees or agents, or third parties which arise out of the user's access or use of data provided. This map is neither a legally recorded map nor a survey and is not intended to be used as one. This map is a compilation of records, information and data located in various city, county, state and federal offices and other sources regarding the area shown, and is to be used for reference purposes only. The City does not warrant that the Geographic Information System (GIS) Data used to prepare this map are error free, and the City does not represent that the GIS Data can be used for navigational, tracking or any other purpose requiring exacting measurement of distance or direction or precision in the depiction of geographic features. If errors or discrepancies are found please contact 952 - 227 -1107. The preceding disclaimer is provided pursuant to Minnesota Statutes §466.03, Subd. 21 (2000), and the user of this map acknowledges that the City shall not be liable for any damages, and expressly waives all claims, and agrees to defend, indemnify, and hold harmless the City from any and all claims brought by User, its employees or agents, or third parties which arise out of the user's access or use of data provided. 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