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PC SUM 2005 02 15 CHANHASSEN PLANNING COMMISSION REGULAR MEETING SUMMARY MINUTES FEBRUARY 15, 2005 Chairman Sacchet called the meeting to order at 7:00 p.m. MEMBERS PRESENT: Uli Sacchet, Dan Keefe, Debbie Larson, Kurt Papke, and Jerry McDonald MEMBERS ABSENT: Steve Lillehaug and Rich Slagle STAFF PRESENT: Bob Generous, Senior Planner; Sharmeen Al-Jaff, Senior Planner; and Matt Saam, Assistant City Engineer PUBLIC PRESENT FOR ALL ITEMS: Janet Paulsen 7305 Laredo Drive HIDDEN CREEK MEADOWS SUBDIVISION APPROVAL FOR A 21 LOT SUBDIVISION WITH VARIANCES. THE DEVELOPMENT PROPOSAL INCLUDES A WETLAND ALTERATION PERMIT TO PERMIT THE CROSSING OF A CREEK AND WETLAND WITH A PUBLIC STREET. THE SITE IS 19.2 ACRES ZONED SINGLE FAMILY RESIDENTIAL, RSF, LOCATED AT THE ENDS OF PIPEWOOD LANE AND CARTWAY LANE, NORTH OF HIGHWAY 7, D & G OF CHANHASSEN LLC, PLANNING CASE NO. 04-31. Public Present: Name Address Jeff & Lisa Jewison 3842 Meadow Court Dean Carlson 7820 Terrey Pine Court Perry Ryan Excelsior, MN th Dale & John Collins 10758 130 Street, Glencoe Kathy Schurdevin 3921 Aster Trail, Excelsior nd Dale Keehl 3841 West 62 Street, Excelsior Cindy Gess 4001 Aster Trail, Excelsior Peter Thomson 4001 Aster Trail, Excelsior Bob Generous and Matt Saam presented the staff report on this item. Commissioner Papke asked for clarification on the grading, flood elevation line, and tree coverage discrepancies between the developer and city staff. Commissioner McDonald asked for clarification on the size of the culvert and piping being proposed, the direction of the water flow between Lake Minnewashta and Lake Virginia, the status of Cartway Lane and the use of a breakaway gate. Commissioner Keefe asked for further clarification on Cartway Lane, sidewalk location, clean- Planning Commission Summary – February 15, 2005 up of the wetland, sizing of the culvert and wetland area. Chairman Sacchet expressed his disappointment at the lack of tree preservation and asked for clarification on conditions relating to trees. He also asked for clarification on the status of Cartway Lane and traffic circulation in the area. Commissioner Keefe asked about a trail connection to the Hennepin County Regional Trail system. Dean Carlson with D&G of Chanhassen, the developer spoke to the issues of placement of a house pad on Lot 7, Block 1, salvage of trees, and connection to Cartway Lane. He questioned the existing $25,477 utility assessment on the McPherson property that is being recommended for payment at final plat. Commissioners Papke and Larson asked the applicant for further clarification on the tree replacement plan. Commissioner Keefe asked the applicant to explain the culvert size and runoff calculations. Chairman Sacchet asked the applicant to explain if they’ve exhausted all possibilities of saving trees on the site. Chairman Sacchet opened the meeting for public comments. Janet Paulsen, 7305 Laredo Drive questioned if the easterly cul-de-sac created double frontage lots. Lisa Jewison who lives in the house that is bound by the two cul-de-sacs asked for clarification on the tree replacement plan and Cartway Lane being viewed as a private street or driveway. Jeff Jewison reiterated his concern with the possibility of his lot becoming a double fronted lot with the two cul-de-sacs. ndnd Dale Keehl, 3841 West 62 Street, on the corner of Cartway and 62 stated his concern with Cartway Lane being privately maintained and how will emergency vehicles gain access when it hasn’t been plowed. Chairman Sacchet closed public comments. After commission discussion the following motions were made. Papke moved, Keefe seconded that the Planning Commission recommends approval of preliminary platapproval for a subdivision with a variance for a flag lot, plans prepared by Ryan Engineering, dated August 20, 2004, revised October 14, 2004 and January 14, 2005, subject to the following conditions: 1.A final grading plan and soils report must be submitted to the Inspections Division before building permits will be issued. 2.Demolition permits must be obtained prior to demolishing any structures on the site. 3.Separate sewer and water services must be provided each lot. 4.Retaining walls more than four feet high must be designed by a registered structural engineer and a building permit must be obtained prior to construction. 5.The sauna on Outlot B must be removed. 6.Outlots A and B shall be dedicated to the City. 7.No burning permits will be issued for trees to be removed. Trees and shrubs must either be removed from site or chipped. 8.Fire apparatus access roads and water supply for fire protection is required to be installed. Such protection shall be installed and made serviceable prior to and during the time of 2 Planning Commission Summary – February 15, 2005 construction except when approved alternate methods of protection are provided. Temporary street signs shall be installed on each street intersection when construction of new roadways allows passage by vehicles. Pursuant to 2002 Minnesota Fire Code Section 501.4. 9.A 20-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 fire hydrants can be quickly located and safely operated by firefighters. Pursuant to Chanhassen City Ordinance #9-1. 10.Full park fees shall be collected at the rate in force at the time of final plat for 17 single- family residential lots. 11.The grading on Lots 10-12, Block 2 shall be revised to avoid grading within the wetland. 12.The applicant shall create a five-year maintenance and monitoring plan for new wetland construction to ensure proposed wetland functions and values are obtained and non-native vegetation does not encroach into the mitigation area. The monitoring plan shall include the preparation of annual reports as required by the Minnesota Wetland Conservation Act. 13.Wetland buffer widths of 16.5 feet to 20.0 feet shall be maintained around all wetlands on- site. All structures shall maintain a 40-foot setback from wetland buffer edge. Wetland buffers and wetland buffer setbacks shall be shown on the grading plan. Wetland buffer areas shall be preserved, surveyed and signed 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 will pay the City $20 per sign. 14.The applicant shall develop detailed plans (including an erosion and sediment control plan) for the installation of the culvert at Pipewood Lane. A winter installation of this culvert is preferable. A professionally engineered temporary diversion of the stream through a stable channel during culvert installation is an acceptable alternative. 15.The applicant shall demonstrate that the installation of the 42” proposed culvert at Pipewood Lane will not cause water to back up through the existing 4’ by 6’ culvert under Highway 7 to the south side of Highway 7 in 10 and 100-year storms. 16.All structures shall maintain a minimum 50-foot setback from the ordinary high water level of the creek. 17.The applicant shall submit calculations to ensure that the pond is sufficient to provide water quality treatment to NURP standards for storm water from the development. 18.The proposed storm water pond shall be designed to accommodate storm water from the upstream areas of the MC-A2.6 subwatershed. 3 Planning Commission Summary – February 15, 2005 19.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: Time (maximum time an area can remain unvegetated Type of Slope when area is not actively being worked) Steeper than 3:1 7 Days 10:1 to 3:1 14 Days Flatter than 10:1 21 Days These areas include constructed storm water management pond side slopes, 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 man made systems that discharge to a surface water. 20.Daily scraping and sweeping of public streets shall be completed anytime construction site soil, mud, silt or rock is tracked or washed onto paved surfaces or streets that would allow tracked materials or residuals of that material to enter the storm water conveyance system. 21.At this time, the estimated total SWMP fee due payable to the City at the time of final plat recording is $45,348. 22.The applicant shall apply for and obtain permits from the appropriate regulatory agencies (e.g., Minnehaha Creek Watershed District, Minnesota Pollution Control Agency, United States Army Corps of Engineers) and comply with their conditions of approval. 23.Prior to final plat approval, a professional civil engineer registered in the State of Minnesota must sign all plans. 24.Prior to final platting, storm sewer design data with a drainage map will need to be submitted for staff review. The storm sewer will have to be designed for a 10-year, 24-hour storm event. The pond is required to be designed to National Urban Runoff Program (NURP) standards. Drainage and utility easements will need to be dedicated on the final plat over the public storm drainage system including ponds, drainage swales, and wetlands up to the 100- year flood level. The minimum utility easement width shall be 20 feet wide. 25.Type II silt fence must be used adjacent to all ponds and wetlands. In addition, an erosion control blanket is required for the steep slopes along the north property line of the site. The applicant should be aware that any off-site grading would require an easement from the appropriate property owner. 26.The remaining utility assessment due payable to the City at the time of final plat recording is $25,477.05. In addition, the sanitary sewer and water hookup charges will be applicable for each of the new lots. The 2005 trunk utility hookup charges are $1,458 per unit for sanitary sewer and $2,955 per unit for water. Each of these charges is based on the number of SAC units calculated by the Metropolitan Council. 4 Planning Commission Summary – February 15, 2005 27.Public utility improvements will be required to be constructed in accordance with the City’s latest editions of Standard Specifications and Detail Plates. Detailed construction plans and specifications will be required at the time of final platting. The applicant will also be required to enter into a development contract with the City and supply the necessary financial security in the form of a letter of credit or cash escrow to guarantee installation of the improvements and the conditions of final plat approval. Permits from the appropriate regulatory agencies must be obtained, including but not limited to the MPCA, MNDOT, Department of Health, etc. 28.Show all of the existing and proposed easements on the plans. 29.Show all of the existing utilities on the plans. 30.The proposed development is required to meet the existing storm water runoff rates for the 10- and 100-year, 24-hour storm events. 31.The walk-out elevation of the proposed homes must be a minimum of 3 feet higher than the adjacent pond or wetland high-water-level. 32.Show the proposed storm manhole rim and invert elevations on the utility plan. 33.Show all emergency overflow elevations on the grading plan. 34.The existing temporary pavement turnaround for Pipewood Lane just south of this site must be removed when Pipewood Lane is extended. Any disturbed area must be sodded and restored. 35.The retaining wall in the rearyard of Lot 7, Block 1 must be 20 feet off the back of the building pad. 36.Revise the rearyard grading of Lot 9, Block 1 to prevent trapping water behind the curb. Either a catch basin will need to be added or the area will have to be re-graded with a minimum slope of 2% to drain from the rearyard to the street. 37.The existing gravel road known as Cartway Lane must be connected to the proposed cul-de- sac at the eastern border of the site. 38.The existing culvert across the street from Lot 9, Block 2 be connected to the storm sewer for Pipewood Lane. 39.A minimum of two overstory trees shall be required in the front yard setback area of each lot. 40.Tree protection fencing is required around all trees proposed to be saved. Any tree lost will be replaced at a rate of 2:1 diameter inches. 5 Planning Commission Summary – February 15, 2005 41.The applicant shall confirm the tree canopy coverage and preservation calculations. A total of 193 trees will be required to be planted unless otherwise noted. 42.The following trees are required on each lot as shown on the landscape plan dated 1/14/05: Lot Front yard Rear yard Lot 1, Block 1 2 6 Lot 2, Block 1 2 3 Lot 3, Block 1 2 3 Lot 4, Block 1 2 3 Lot 5, Block 1 2 3 Lot 6, Block 1 2 4 Lot 7, Block 1 2 5 Lot 8, Block 1 2 6 Lot 9, Block 1 2 2 Lot 1, Block 2 2 4, 3 side yard Lot 2, Block 2 2 2 Lot 3, Block 2 2 4 Lot 4, Block 2 2 2 Lot 5, Block 2 2 2 Lot 6, Block 2 2 2 Lot 7, Block 2 2 4 Lot 8, Block 2 2 3 Lot 9, Block 2 2 4 Lot 10, Block 2 2 4 Lot 11, Block 2 2 5 Lot 12, Block 2 2 1 Outlot A 30 (buffer plantings included in total) Outlot B 9 43.A landscape plan with a plant schedule that specifies the proposed quantities of each species shall be submitted to the city prior to final plat approval. 44.The developer shall responsible for planting any trees located in the rear or side yards as shown on the landscape plan dated 1/14/05. 45.The applicant shall plant only species adaptable to wet sites near the wetland boundary edge. 46.Tree preservation fencing shall be installed at the dripline of the tree saved on Lot 6, Block 2 prior to any grading. 47.Any plantings occurring on Outlots A or B be field located and no existing vegetation shall be removed or compromised for the planting of new trees. 6 Planning Commission Summary – February 15, 2005 48.and along the east The applicant shall install landscaping at the end of the Pipewood Lane boundary of Lot 12, Block 2 around the cul-de-sac. Evergreens and ornamentals shall be installed so as to reduce headlight glare and buffer views of the street from the existing homes. along the cul-de-sac and A minimum of 9 evergreens and 3 ornamentals shall be planted along the east side of the flag lot maintaining planting density of the cul-de-sac along the east border. 49.The applicant shall remove Colorado blue spruce from the plant schedule and replace it with white fir or a species of pine. 50.The grading limits shown on the grading plan for Lot 2, Block 2, shall remain as is and the developer shall adapt to the existing plan as necessary to preserve a small group of maples 12” and larger. 51.Temporary rock fords should not be used; and crossing the stream with flowing water and no established stable crossing must be avoided. No work shall take place in the creek between thth the dates of March 15 to June 15 to minimize sediment impacts to spawning fish species. 52.MN DOT category 3 erosion blanket and seed should be applied to exposed creek slopes near / around Pipewood Lane within 24 hours of final grade. 53.Following stormwater inlet installation Wimco-type (or equal) inlet sediment controls should be installed and regularly maintained. 54.Following street and utility installation, Chanhassen-specification Type-1 silt fence or other approved perimeter sediment control is needed for all positive slopes curbside. 55.The silt fence proposed across the existing and proposed Pipewood Lane is not practical due to site access needs.” 56. The applicant will work with staff to resolve the access issues on Cartway Lane. All voted in favor and the motion carried unanimously with a vote of 5 to 0. Papke moved, McDonald seconded that the Planning Commission recommends approval for aWetland Alteration Permitplans prepared by Ryan Engineering, dated August 20, , 2004, revised October 14, 2004 and January 14, 2005, subject to the following conditions: 1.The grading on Lots 10-12, Block 2 shall be revised to avoid grading within the wetland. 2.The applicant shall submit a five-year maintenance and monitoring plan for new wetland construction to ensure proposed wetland functions and values are obtained and non-native vegetation does not encroach into the mitigation area. The monitoring plan shall include the preparation of annual reports as required by the Minnesota Wetland Conservation Act. 7 Planning Commission Summary – February 15, 2005 3.Wetland buffer widths of 16.5 feet to 20.0 feet shall be maintained around all wetlands on- site. All structures shall maintain a 40-foot setback from wetland buffer edge. Wetland buffers and wetland buffer setbacks shall be shown on the grading plan. Wetland buffer areas shall be preserved, surveyed and signed 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 will pay the City $20 per sign. 4.Drainage and utility easements shall be provided over all existing wetlands, wetland mitigation areas, and storm water infrastructure. Easements shall be at least 20 feet in width to allow access for inspection and maintenance. 5.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: Time (maximum time an area can remain unvegetated Type of Slope when area is not actively being worked) Steeper than 3:1 7 Days 10:1 to 3:1 14 Days Flatter than 10:1 21 Days These areas include constructed storm water management pond side slopes, 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 man made systems that discharge to a surface water. 6.The applicant shall apply for and obtain permits from the appropriate regulatory agencies (e.g., Minnehaha Creek Watershed District, Minnesota Pollution Control Agency, United States Army Corps of Engineers) and comply with their conditions of approval.” All voted in favor and the motion carried unanimously with a vote of 5 to 0. PUBLIC HEARING: CODE AMENDMENT REGARDING ELECTRIC SUBSTATIONS: SECTION 20-574 (9) CONDITIONAL USES IN THE A2 DISTRICT, SECTION 20-814 CONDITIONAL USES IN THE IOP DISTRICT, SECTION 20-257 ELECTRICAL SUBSTATIONS AND CHAPTER 1 DEFINING AND REGULATING SUBSTATIONS. Public Present: Name Address th Dennis Wolf 4291 West 200 Street, Jordan Ronald Jabs 217 Juergens Circle, Jordan 8 Planning Commission Summary – February 15, 2005 Sharmeen Al-Jaff presented the staff report on this item. Commissioner McDonald asked staff to clarify how this proposed amendment related to the specific request of Minnesota Valley Electric. Commissioner Papke asked for clarification of Section 2, item 9 and Section 3, item 13. There’s a request for reasonable and prudent measures to minimize EMF levels along all alternative routes and Section 3, item 12 asking to provide the EMF levels at the maximum and average anticipated loading. Commissioner Keefe asked for clarification on the definitions in Section 1. Chairman Sacchet opened the public hearing. Ron Jabs and Denny Wolf with Minnesota Valley Electric addressed their concerns with the restrictive nature of the ordinance. Chairman Sacchet asked Mr. Jabs’ opinion if the 5 acre requirement was overkill. Denny Wolf suggested that the wording on item number 4, 6 foot high security fence shall surround a distributional electrical, underground electric substation be amended to read that a fence would be installed per the National Safety Code as a minimum. He also recommended wording related to grounding of the electrical fence. Commissioner Keefe asked for discussion about the requirement of a 5 acre site if a 2 to 3 acre range is adequate. Papke moved, McDonald seconded that the Planning Commission recommends approval of the attached amendments to Chapters 1 and 20 amended as follows: Changing Section 2, number 9 and Section 3, number 13 to say alternative line routing. Section 2, number 4 to include the wording, compliant with the National Safety Code, and Item 8 referencing the Minnesota State guidelines for electrical fields. All voted in favor and the motion carried unanimously with a vote of 5 to 0. APPROVAL OF MINUTES:Commissioner Keefe noted the verbatim and summary minutes of the Planning Commission meeting dated February 1, 2005 as presented. Chairman Sacchet adjourned the Planning Commission meeting at 9:15 p.m. Submitted by Kate Aanenson Community Development Director Prepared by Nann Opheim 9 CHANHASSEN PLANNING COMMISSION REGULAR MEETING SUMMARY MINUTES FEBRUARY 15, 2005 Chairman Sacchet called the meeting to order at 7:00 p.m. MEMBERS PRESENT: Uli Sacchet, Dan Keefe, Debbie Larson, Kurt Papke, and Jerry McDonald MEMBERS ABSENT: Steve Lillehaug and Rich Slagle STAFF PRESENT: Bob Generous, Senior Planner; Sharmeen Al-Jaff, Senior Planner; and Matt Saam, Assistant City Engineer PUBLIC PRESENT FOR ALL ITEMS: Janet Paulsen 7305 Laredo Drive HIDDEN CREEK MEADOWS SUBDIVISION APPROVAL FOR A 21 LOT SUBDIVISION WITH VARIANCES. THE DEVELOPMENT PROPOSAL INCLUDES A WETLAND ALTERATION PERMIT TO PERMIT THE CROSSING OF A CREEK AND WETLAND WITH A PUBLIC STREET. THE SITE IS 19.2 ACRES ZONED SINGLE FAMILY RESIDENTIAL, RSF, LOCATED AT THE ENDS OF PIPEWOOD LANE AND CARTWAY LANE, NORTH OF HIGHWAY 7, D & G OF CHANHASSEN LLC, PLANNING CASE NO. 04-31. Public Present: Name Address Jeff & Lisa Jewison 3842 Meadow Court Dean Carlson 7820 Terrey Pine Court Perry Ryan Excelsior, MN th Dale & John Collins 10758 130 Street, Glencoe Kathy Schurdevin 3921 Aster Trail, Excelsior nd Dale Keehl 3841 West 62 Street, Excelsior Cindy Gess 4001 Aster Trail, Excelsior Peter Thomson 4001 Aster Trail, Excelsior Bob Generous and Matt Saam presented the staff report on this item. Commissioner Papke asked for clarification on the grading, flood elevation line, and tree coverage discrepancies between the developer and city staff. Commissioner McDonald asked for clarification on the size of the culvert and piping being proposed, the direction of the water flow between Lake Minnewashta and Lake Virginia, the status of Cartway Lane and the use of a breakaway gate. Commissioner Keefe asked for further clarification on Cartway Lane, sidewalk location, clean- Planning Commission Summary – February 15, 2005 up of the wetland, sizing of the culvert and wetland area. Chairman Sacchet expressed his disappointment at the lack of tree preservation and asked for clarification on conditions relating to trees. He also asked for clarification on the status of Cartway Lane and traffic circulation in the area. Commissioner Keefe asked about a trail connection to the Hennepin County Regional Trail system. Dean Carlson with D&G of Chanhassen, the developer spoke to the issues of placement of a house pad on Lot 7, Block 1, salvage of trees, and connection to Cartway Lane. He questioned the existing $25,477 utility assessment on the McPherson property that is being recommended for payment at final plat. Commissioners Papke and Larson asked the applicant for further clarification on the tree replacement plan. Commissioner Keefe asked the applicant to explain the culvert size and runoff calculations. Chairman Sacchet asked the applicant to explain if they’ve exhausted all possibilities of saving trees on the site. Chairman Sacchet opened the meeting for public comments. Janet Paulsen, 7305 Laredo Drive questioned if the easterly cul-de-sac created double frontage lots. Lisa Jewison who lives in the house that is bound by the two cul-de-sacs asked for clarification on the tree replacement plan and Cartway Lane being viewed as a private street or driveway. Jeff Jewison reiterated his concern with the possibility of his lot becoming a double fronted lot with the two cul-de-sacs. ndnd Dale Keehl, 3841 West 62 Street, on the corner of Cartway and 62 stated his concern with Cartway Lane being privately maintained and how will emergency vehicles gain access when it hasn’t been plowed. Chairman Sacchet closed public comments. After commission discussion the following motions were made. Papke moved, Keefe seconded that the Planning Commission recommends approval of preliminary platapproval for a subdivision with a variance for a flag lot, plans prepared by Ryan Engineering, dated August 20, 2004, revised October 14, 2004 and January 14, 2005, subject to the following conditions: 1.A final grading plan and soils report must be submitted to the Inspections Division before building permits will be issued. 2.Demolition permits must be obtained prior to demolishing any structures on the site. 3.Separate sewer and water services must be provided each lot. 4.Retaining walls more than four feet high must be designed by a registered structural engineer and a building permit must be obtained prior to construction. 5.The sauna on Outlot B must be removed. 6.Outlots A and B shall be dedicated to the City. 7.No burning permits will be issued for trees to be removed. Trees and shrubs must either be removed from site or chipped. 8.Fire apparatus access roads and water supply for fire protection is required to be installed. Such protection shall be installed and made serviceable prior to and during the time of 2 Planning Commission Summary – February 15, 2005 construction except when approved alternate methods of protection are provided. Temporary street signs shall be installed on each street intersection when construction of new roadways allows passage by vehicles. Pursuant to 2002 Minnesota Fire Code Section 501.4. 9.A 20-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 fire hydrants can be quickly located and safely operated by firefighters. Pursuant to Chanhassen City Ordinance #9-1. 10.Full park fees shall be collected at the rate in force at the time of final plat for 17 single- family residential lots. 11.The grading on Lots 10-12, Block 2 shall be revised to avoid grading within the wetland. 12.The applicant shall create a five-year maintenance and monitoring plan for new wetland construction to ensure proposed wetland functions and values are obtained and non-native vegetation does not encroach into the mitigation area. The monitoring plan shall include the preparation of annual reports as required by the Minnesota Wetland Conservation Act. 13.Wetland buffer widths of 16.5 feet to 20.0 feet shall be maintained around all wetlands on- site. All structures shall maintain a 40-foot setback from wetland buffer edge. Wetland buffers and wetland buffer setbacks shall be shown on the grading plan. Wetland buffer areas shall be preserved, surveyed and signed 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 will pay the City $20 per sign. 14.The applicant shall develop detailed plans (including an erosion and sediment control plan) for the installation of the culvert at Pipewood Lane. A winter installation of this culvert is preferable. A professionally engineered temporary diversion of the stream through a stable channel during culvert installation is an acceptable alternative. 15.The applicant shall demonstrate that the installation of the 42” proposed culvert at Pipewood Lane will not cause water to back up through the existing 4’ by 6’ culvert under Highway 7 to the south side of Highway 7 in 10 and 100-year storms. 16.All structures shall maintain a minimum 50-foot setback from the ordinary high water level of the creek. 17.The applicant shall submit calculations to ensure that the pond is sufficient to provide water quality treatment to NURP standards for storm water from the development. 18.The proposed storm water pond shall be designed to accommodate storm water from the upstream areas of the MC-A2.6 subwatershed. 3 Planning Commission Summary – February 15, 2005 19.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: Time (maximum time an area can remain unvegetated Type of Slope when area is not actively being worked) Steeper than 3:1 7 Days 10:1 to 3:1 14 Days Flatter than 10:1 21 Days These areas include constructed storm water management pond side slopes, 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 man made systems that discharge to a surface water. 20.Daily scraping and sweeping of public streets shall be completed anytime construction site soil, mud, silt or rock is tracked or washed onto paved surfaces or streets that would allow tracked materials or residuals of that material to enter the storm water conveyance system. 21.At this time, the estimated total SWMP fee due payable to the City at the time of final plat recording is $45,348. 22.The applicant shall apply for and obtain permits from the appropriate regulatory agencies (e.g., Minnehaha Creek Watershed District, Minnesota Pollution Control Agency, United States Army Corps of Engineers) and comply with their conditions of approval. 23.Prior to final plat approval, a professional civil engineer registered in the State of Minnesota must sign all plans. 24.Prior to final platting, storm sewer design data with a drainage map will need to be submitted for staff review. The storm sewer will have to be designed for a 10-year, 24-hour storm event. The pond is required to be designed to National Urban Runoff Program (NURP) standards. Drainage and utility easements will need to be dedicated on the final plat over the public storm drainage system including ponds, drainage swales, and wetlands up to the 100- year flood level. The minimum utility easement width shall be 20 feet wide. 25.Type II silt fence must be used adjacent to all ponds and wetlands. In addition, an erosion control blanket is required for the steep slopes along the north property line of the site. The applicant should be aware that any off-site grading would require an easement from the appropriate property owner. 26.The remaining utility assessment due payable to the City at the time of final plat recording is $25,477.05. In addition, the sanitary sewer and water hookup charges will be applicable for each of the new lots. The 2005 trunk utility hookup charges are $1,458 per unit for sanitary sewer and $2,955 per unit for water. Each of these charges is based on the number of SAC units calculated by the Metropolitan Council. 4 Planning Commission Summary – February 15, 2005 27.Public utility improvements will be required to be constructed in accordance with the City’s latest editions of Standard Specifications and Detail Plates. Detailed construction plans and specifications will be required at the time of final platting. The applicant will also be required to enter into a development contract with the City and supply the necessary financial security in the form of a letter of credit or cash escrow to guarantee installation of the improvements and the conditions of final plat approval. Permits from the appropriate regulatory agencies must be obtained, including but not limited to the MPCA, MNDOT, Department of Health, etc. 28.Show all of the existing and proposed easements on the plans. 29.Show all of the existing utilities on the plans. 30.The proposed development is required to meet the existing storm water runoff rates for the 10- and 100-year, 24-hour storm events. 31.The walk-out elevation of the proposed homes must be a minimum of 3 feet higher than the adjacent pond or wetland high-water-level. 32.Show the proposed storm manhole rim and invert elevations on the utility plan. 33.Show all emergency overflow elevations on the grading plan. 34.The existing temporary pavement turnaround for Pipewood Lane just south of this site must be removed when Pipewood Lane is extended. Any disturbed area must be sodded and restored. 35.The retaining wall in the rearyard of Lot 7, Block 1 must be 20 feet off the back of the building pad. 36.Revise the rearyard grading of Lot 9, Block 1 to prevent trapping water behind the curb. Either a catch basin will need to be added or the area will have to be re-graded with a minimum slope of 2% to drain from the rearyard to the street. 37.The existing gravel road known as Cartway Lane must be connected to the proposed cul-de- sac at the eastern border of the site. 38.The existing culvert across the street from Lot 9, Block 2 be connected to the storm sewer for Pipewood Lane. 39.A minimum of two overstory trees shall be required in the front yard setback area of each lot. 40.Tree protection fencing is required around all trees proposed to be saved. Any tree lost will be replaced at a rate of 2:1 diameter inches. 5 Planning Commission Summary – February 15, 2005 41.The applicant shall confirm the tree canopy coverage and preservation calculations. A total of 193 trees will be required to be planted unless otherwise noted. 42.The following trees are required on each lot as shown on the landscape plan dated 1/14/05: Lot Front yard Rear yard Lot 1, Block 1 2 6 Lot 2, Block 1 2 3 Lot 3, Block 1 2 3 Lot 4, Block 1 2 3 Lot 5, Block 1 2 3 Lot 6, Block 1 2 4 Lot 7, Block 1 2 5 Lot 8, Block 1 2 6 Lot 9, Block 1 2 2 Lot 1, Block 2 2 4, 3 side yard Lot 2, Block 2 2 2 Lot 3, Block 2 2 4 Lot 4, Block 2 2 2 Lot 5, Block 2 2 2 Lot 6, Block 2 2 2 Lot 7, Block 2 2 4 Lot 8, Block 2 2 3 Lot 9, Block 2 2 4 Lot 10, Block 2 2 4 Lot 11, Block 2 2 5 Lot 12, Block 2 2 1 Outlot A 30 (buffer plantings included in total) Outlot B 9 43.A landscape plan with a plant schedule that specifies the proposed quantities of each species shall be submitted to the city prior to final plat approval. 44.The developer shall responsible for planting any trees located in the rear or side yards as shown on the landscape plan dated 1/14/05. 45.The applicant shall plant only species adaptable to wet sites near the wetland boundary edge. 46.Tree preservation fencing shall be installed at the dripline of the tree saved on Lot 6, Block 2 prior to any grading. 47.Any plantings occurring on Outlots A or B be field located and no existing vegetation shall be removed or compromised for the planting of new trees. 6 Planning Commission Summary – February 15, 2005 48.and along the east The applicant shall install landscaping at the end of the Pipewood Lane boundary of Lot 12, Block 2 around the cul-de-sac. Evergreens and ornamentals shall be installed so as to reduce headlight glare and buffer views of the street from the existing homes. along the cul-de-sac and A minimum of 9 evergreens and 3 ornamentals shall be planted along the east side of the flag lot maintaining planting density of the cul-de-sac along the east border. 49.The applicant shall remove Colorado blue spruce from the plant schedule and replace it with white fir or a species of pine. 50.The grading limits shown on the grading plan for Lot 2, Block 2, shall remain as is and the developer shall adapt to the existing plan as necessary to preserve a small group of maples 12” and larger. 51.Temporary rock fords should not be used; and crossing the stream with flowing water and no established stable crossing must be avoided. No work shall take place in the creek between thth the dates of March 15 to June 15 to minimize sediment impacts to spawning fish species. 52.MN DOT category 3 erosion blanket and seed should be applied to exposed creek slopes near / around Pipewood Lane within 24 hours of final grade. 53.Following stormwater inlet installation Wimco-type (or equal) inlet sediment controls should be installed and regularly maintained. 54.Following street and utility installation, Chanhassen-specification Type-1 silt fence or other approved perimeter sediment control is needed for all positive slopes curbside. 55.The silt fence proposed across the existing and proposed Pipewood Lane is not practical due to site access needs.” 56. The applicant will work with staff to resolve the access issues on Cartway Lane. All voted in favor and the motion carried unanimously with a vote of 5 to 0. Papke moved, McDonald seconded that the Planning Commission recommends approval for aWetland Alteration Permitplans prepared by Ryan Engineering, dated August 20, , 2004, revised October 14, 2004 and January 14, 2005, subject to the following conditions: 1.The grading on Lots 10-12, Block 2 shall be revised to avoid grading within the wetland. 2.The applicant shall submit a five-year maintenance and monitoring plan for new wetland construction to ensure proposed wetland functions and values are obtained and non-native vegetation does not encroach into the mitigation area. The monitoring plan shall include the preparation of annual reports as required by the Minnesota Wetland Conservation Act. 7 Planning Commission Summary – February 15, 2005 3.Wetland buffer widths of 16.5 feet to 20.0 feet shall be maintained around all wetlands on- site. All structures shall maintain a 40-foot setback from wetland buffer edge. Wetland buffers and wetland buffer setbacks shall be shown on the grading plan. Wetland buffer areas shall be preserved, surveyed and signed 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 will pay the City $20 per sign. 4.Drainage and utility easements shall be provided over all existing wetlands, wetland mitigation areas, and storm water infrastructure. Easements shall be at least 20 feet in width to allow access for inspection and maintenance. 5.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: Time (maximum time an area can remain unvegetated Type of Slope when area is not actively being worked) Steeper than 3:1 7 Days 10:1 to 3:1 14 Days Flatter than 10:1 21 Days These areas include constructed storm water management pond side slopes, 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 man made systems that discharge to a surface water. 6.The applicant shall apply for and obtain permits from the appropriate regulatory agencies (e.g., Minnehaha Creek Watershed District, Minnesota Pollution Control Agency, United States Army Corps of Engineers) and comply with their conditions of approval.” All voted in favor and the motion carried unanimously with a vote of 5 to 0. PUBLIC HEARING: CODE AMENDMENT REGARDING ELECTRIC SUBSTATIONS: SECTION 20-574 (9) CONDITIONAL USES IN THE A2 DISTRICT, SECTION 20-814 CONDITIONAL USES IN THE IOP DISTRICT, SECTION 20-257 ELECTRICAL SUBSTATIONS AND CHAPTER 1 DEFINING AND REGULATING SUBSTATIONS. Public Present: Name Address th Dennis Wolf 4291 West 200 Street, Jordan Ronald Jabs 217 Juergens Circle, Jordan 8 Planning Commission Summary – February 15, 2005 Sharmeen Al-Jaff presented the staff report on this item. Commissioner McDonald asked staff to clarify how this proposed amendment related to the specific request of Minnesota Valley Electric. Commissioner Papke asked for clarification of Section 2, item 9 and Section 3, item 13. There’s a request for reasonable and prudent measures to minimize EMF levels along all alternative routes and Section 3, item 12 asking to provide the EMF levels at the maximum and average anticipated loading. Commissioner Keefe asked for clarification on the definitions in Section 1. Chairman Sacchet opened the public hearing. Ron Jabs and Denny Wolf with Minnesota Valley Electric addressed their concerns with the restrictive nature of the ordinance. Chairman Sacchet asked Mr. Jabs’ opinion if the 5 acre requirement was overkill. Denny Wolf suggested that the wording on item number 4, 6 foot high security fence shall surround a distributional electrical, underground electric substation be amended to read that a fence would be installed per the National Safety Code as a minimum. He also recommended wording related to grounding of the electrical fence. Commissioner Keefe asked for discussion about the requirement of a 5 acre site if a 2 to 3 acre range is adequate. Papke moved, McDonald seconded that the Planning Commission recommends approval of the attached amendments to Chapters 1 and 20 amended as follows: Changing Section 2, number 9 and Section 3, number 13 to say alternative line routing. Section 2, number 4 to include the wording, compliant with the National Safety Code, and Item 8 referencing the Minnesota State guidelines for electrical fields. All voted in favor and the motion carried unanimously with a vote of 5 to 0. APPROVAL OF MINUTES:Commissioner Keefe noted the verbatim and summary minutes of the Planning Commission meeting dated February 1, 2005 as presented. Chairman Sacchet adjourned the Planning Commission meeting at 9:15 p.m. Submitted by Kate Aanenson Community Development Director Prepared by Nann Opheim 9 CHANHASSEN PLANNING COMMISSION REGULAR MEETING SUMMARY MINUTES FEBRUARY 15, 2005 Chairman Sacchet called the meeting to order at 7:00 p.m. MEMBERS PRESENT: Uli Sacchet, Dan Keefe, Debbie Larson, Kurt Papke, and Jerry McDonald MEMBERS ABSENT: Steve Lillehaug and Rich Slagle STAFF PRESENT: Bob Generous, Senior Planner; Sharmeen Al-Jaff, Senior Planner; and Matt Saam, Assistant City Engineer PUBLIC PRESENT FOR ALL ITEMS: Janet Paulsen 7305 Laredo Drive HIDDEN CREEK MEADOWS SUBDIVISION APPROVAL FOR A 21 LOT SUBDIVISION WITH VARIANCES. THE DEVELOPMENT PROPOSAL INCLUDES A WETLAND ALTERATION PERMIT TO PERMIT THE CROSSING OF A CREEK AND WETLAND WITH A PUBLIC STREET. THE SITE IS 19.2 ACRES ZONED SINGLE FAMILY RESIDENTIAL, RSF, LOCATED AT THE ENDS OF PIPEWOOD LANE AND CARTWAY LANE, NORTH OF HIGHWAY 7, D & G OF CHANHASSEN LLC, PLANNING CASE NO. 04-31. Public Present: Name Address Jeff & Lisa Jewison 3842 Meadow Court Dean Carlson 7820 Terrey Pine Court Perry Ryan Excelsior, MN th Dale & John Collins 10758 130 Street, Glencoe Kathy Schurdevin 3921 Aster Trail, Excelsior nd Dale Keehl 3841 West 62 Street, Excelsior Cindy Gess 4001 Aster Trail, Excelsior Peter Thomson 4001 Aster Trail, Excelsior Bob Generous and Matt Saam presented the staff report on this item. Commissioner Papke asked for clarification on the grading, flood elevation line, and tree coverage discrepancies between the developer and city staff. Commissioner McDonald asked for clarification on the size of the culvert and piping being proposed, the direction of the water flow between Lake Minnewashta and Lake Virginia, the status of Cartway Lane and the use of a breakaway gate. Commissioner Keefe asked for further clarification on Cartway Lane, sidewalk location, clean- Planning Commission Summary – February 15, 2005 up of the wetland, sizing of the culvert and wetland area. Chairman Sacchet expressed his disappointment at the lack of tree preservation and asked for clarification on conditions relating to trees. He also asked for clarification on the status of Cartway Lane and traffic circulation in the area. Commissioner Keefe asked about a trail connection to the Hennepin County Regional Trail system. Dean Carlson with D&G of Chanhassen, the developer spoke to the issues of placement of a house pad on Lot 7, Block 1, salvage of trees, and connection to Cartway Lane. He questioned the existing $25,477 utility assessment on the McPherson property that is being recommended for payment at final plat. Commissioners Papke and Larson asked the applicant for further clarification on the tree replacement plan. Commissioner Keefe asked the applicant to explain the culvert size and runoff calculations. Chairman Sacchet asked the applicant to explain if they’ve exhausted all possibilities of saving trees on the site. Chairman Sacchet opened the meeting for public comments. Janet Paulsen, 7305 Laredo Drive questioned if the easterly cul-de-sac created double frontage lots. Lisa Jewison who lives in the house that is bound by the two cul-de-sacs asked for clarification on the tree replacement plan and Cartway Lane being viewed as a private street or driveway. Jeff Jewison reiterated his concern with the possibility of his lot becoming a double fronted lot with the two cul-de-sacs. ndnd Dale Keehl, 3841 West 62 Street, on the corner of Cartway and 62 stated his concern with Cartway Lane being privately maintained and how will emergency vehicles gain access when it hasn’t been plowed. Chairman Sacchet closed public comments. After commission discussion the following motions were made. Papke moved, Keefe seconded that the Planning Commission recommends approval of preliminary platapproval for a subdivision with a variance for a flag lot, plans prepared by Ryan Engineering, dated August 20, 2004, revised October 14, 2004 and January 14, 2005, subject to the following conditions: 1.A final grading plan and soils report must be submitted to the Inspections Division before building permits will be issued. 2.Demolition permits must be obtained prior to demolishing any structures on the site. 3.Separate sewer and water services must be provided each lot. 4.Retaining walls more than four feet high must be designed by a registered structural engineer and a building permit must be obtained prior to construction. 5.The sauna on Outlot B must be removed. 6.Outlots A and B shall be dedicated to the City. 7.No burning permits will be issued for trees to be removed. Trees and shrubs must either be removed from site or chipped. 8.Fire apparatus access roads and water supply for fire protection is required to be installed. Such protection shall be installed and made serviceable prior to and during the time of 2 Planning Commission Summary – February 15, 2005 construction except when approved alternate methods of protection are provided. Temporary street signs shall be installed on each street intersection when construction of new roadways allows passage by vehicles. Pursuant to 2002 Minnesota Fire Code Section 501.4. 9.A 20-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 fire hydrants can be quickly located and safely operated by firefighters. Pursuant to Chanhassen City Ordinance #9-1. 10.Full park fees shall be collected at the rate in force at the time of final plat for 17 single- family residential lots. 11.The grading on Lots 10-12, Block 2 shall be revised to avoid grading within the wetland. 12.The applicant shall create a five-year maintenance and monitoring plan for new wetland construction to ensure proposed wetland functions and values are obtained and non-native vegetation does not encroach into the mitigation area. The monitoring plan shall include the preparation of annual reports as required by the Minnesota Wetland Conservation Act. 13.Wetland buffer widths of 16.5 feet to 20.0 feet shall be maintained around all wetlands on- site. All structures shall maintain a 40-foot setback from wetland buffer edge. Wetland buffers and wetland buffer setbacks shall be shown on the grading plan. Wetland buffer areas shall be preserved, surveyed and signed 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 will pay the City $20 per sign. 14.The applicant shall develop detailed plans (including an erosion and sediment control plan) for the installation of the culvert at Pipewood Lane. A winter installation of this culvert is preferable. A professionally engineered temporary diversion of the stream through a stable channel during culvert installation is an acceptable alternative. 15.The applicant shall demonstrate that the installation of the 42” proposed culvert at Pipewood Lane will not cause water to back up through the existing 4’ by 6’ culvert under Highway 7 to the south side of Highway 7 in 10 and 100-year storms. 16.All structures shall maintain a minimum 50-foot setback from the ordinary high water level of the creek. 17.The applicant shall submit calculations to ensure that the pond is sufficient to provide water quality treatment to NURP standards for storm water from the development. 18.The proposed storm water pond shall be designed to accommodate storm water from the upstream areas of the MC-A2.6 subwatershed. 3 Planning Commission Summary – February 15, 2005 19.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: Time (maximum time an area can remain unvegetated Type of Slope when area is not actively being worked) Steeper than 3:1 7 Days 10:1 to 3:1 14 Days Flatter than 10:1 21 Days These areas include constructed storm water management pond side slopes, 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 man made systems that discharge to a surface water. 20.Daily scraping and sweeping of public streets shall be completed anytime construction site soil, mud, silt or rock is tracked or washed onto paved surfaces or streets that would allow tracked materials or residuals of that material to enter the storm water conveyance system. 21.At this time, the estimated total SWMP fee due payable to the City at the time of final plat recording is $45,348. 22.The applicant shall apply for and obtain permits from the appropriate regulatory agencies (e.g., Minnehaha Creek Watershed District, Minnesota Pollution Control Agency, United States Army Corps of Engineers) and comply with their conditions of approval. 23.Prior to final plat approval, a professional civil engineer registered in the State of Minnesota must sign all plans. 24.Prior to final platting, storm sewer design data with a drainage map will need to be submitted for staff review. The storm sewer will have to be designed for a 10-year, 24-hour storm event. The pond is required to be designed to National Urban Runoff Program (NURP) standards. Drainage and utility easements will need to be dedicated on the final plat over the public storm drainage system including ponds, drainage swales, and wetlands up to the 100- year flood level. The minimum utility easement width shall be 20 feet wide. 25.Type II silt fence must be used adjacent to all ponds and wetlands. In addition, an erosion control blanket is required for the steep slopes along the north property line of the site. The applicant should be aware that any off-site grading would require an easement from the appropriate property owner. 26.The remaining utility assessment due payable to the City at the time of final plat recording is $25,477.05. In addition, the sanitary sewer and water hookup charges will be applicable for each of the new lots. The 2005 trunk utility hookup charges are $1,458 per unit for sanitary sewer and $2,955 per unit for water. Each of these charges is based on the number of SAC units calculated by the Metropolitan Council. 4 Planning Commission Summary – February 15, 2005 27.Public utility improvements will be required to be constructed in accordance with the City’s latest editions of Standard Specifications and Detail Plates. Detailed construction plans and specifications will be required at the time of final platting. The applicant will also be required to enter into a development contract with the City and supply the necessary financial security in the form of a letter of credit or cash escrow to guarantee installation of the improvements and the conditions of final plat approval. Permits from the appropriate regulatory agencies must be obtained, including but not limited to the MPCA, MNDOT, Department of Health, etc. 28.Show all of the existing and proposed easements on the plans. 29.Show all of the existing utilities on the plans. 30.The proposed development is required to meet the existing storm water runoff rates for the 10- and 100-year, 24-hour storm events. 31.The walk-out elevation of the proposed homes must be a minimum of 3 feet higher than the adjacent pond or wetland high-water-level. 32.Show the proposed storm manhole rim and invert elevations on the utility plan. 33.Show all emergency overflow elevations on the grading plan. 34.The existing temporary pavement turnaround for Pipewood Lane just south of this site must be removed when Pipewood Lane is extended. Any disturbed area must be sodded and restored. 35.The retaining wall in the rearyard of Lot 7, Block 1 must be 20 feet off the back of the building pad. 36.Revise the rearyard grading of Lot 9, Block 1 to prevent trapping water behind the curb. Either a catch basin will need to be added or the area will have to be re-graded with a minimum slope of 2% to drain from the rearyard to the street. 37.The existing gravel road known as Cartway Lane must be connected to the proposed cul-de- sac at the eastern border of the site. 38.The existing culvert across the street from Lot 9, Block 2 be connected to the storm sewer for Pipewood Lane. 39.A minimum of two overstory trees shall be required in the front yard setback area of each lot. 40.Tree protection fencing is required around all trees proposed to be saved. Any tree lost will be replaced at a rate of 2:1 diameter inches. 5 Planning Commission Summary – February 15, 2005 41.The applicant shall confirm the tree canopy coverage and preservation calculations. A total of 193 trees will be required to be planted unless otherwise noted. 42.The following trees are required on each lot as shown on the landscape plan dated 1/14/05: Lot Front yard Rear yard Lot 1, Block 1 2 6 Lot 2, Block 1 2 3 Lot 3, Block 1 2 3 Lot 4, Block 1 2 3 Lot 5, Block 1 2 3 Lot 6, Block 1 2 4 Lot 7, Block 1 2 5 Lot 8, Block 1 2 6 Lot 9, Block 1 2 2 Lot 1, Block 2 2 4, 3 side yard Lot 2, Block 2 2 2 Lot 3, Block 2 2 4 Lot 4, Block 2 2 2 Lot 5, Block 2 2 2 Lot 6, Block 2 2 2 Lot 7, Block 2 2 4 Lot 8, Block 2 2 3 Lot 9, Block 2 2 4 Lot 10, Block 2 2 4 Lot 11, Block 2 2 5 Lot 12, Block 2 2 1 Outlot A 30 (buffer plantings included in total) Outlot B 9 43.A landscape plan with a plant schedule that specifies the proposed quantities of each species shall be submitted to the city prior to final plat approval. 44.The developer shall responsible for planting any trees located in the rear or side yards as shown on the landscape plan dated 1/14/05. 45.The applicant shall plant only species adaptable to wet sites near the wetland boundary edge. 46.Tree preservation fencing shall be installed at the dripline of the tree saved on Lot 6, Block 2 prior to any grading. 47.Any plantings occurring on Outlots A or B be field located and no existing vegetation shall be removed or compromised for the planting of new trees. 6 Planning Commission Summary – February 15, 2005 48.and along the east The applicant shall install landscaping at the end of the Pipewood Lane boundary of Lot 12, Block 2 around the cul-de-sac. Evergreens and ornamentals shall be installed so as to reduce headlight glare and buffer views of the street from the existing homes. along the cul-de-sac and A minimum of 9 evergreens and 3 ornamentals shall be planted along the east side of the flag lot maintaining planting density of the cul-de-sac along the east border. 49.The applicant shall remove Colorado blue spruce from the plant schedule and replace it with white fir or a species of pine. 50.The grading limits shown on the grading plan for Lot 2, Block 2, shall remain as is and the developer shall adapt to the existing plan as necessary to preserve a small group of maples 12” and larger. 51.Temporary rock fords should not be used; and crossing the stream with flowing water and no established stable crossing must be avoided. No work shall take place in the creek between thth the dates of March 15 to June 15 to minimize sediment impacts to spawning fish species. 52.MN DOT category 3 erosion blanket and seed should be applied to exposed creek slopes near / around Pipewood Lane within 24 hours of final grade. 53.Following stormwater inlet installation Wimco-type (or equal) inlet sediment controls should be installed and regularly maintained. 54.Following street and utility installation, Chanhassen-specification Type-1 silt fence or other approved perimeter sediment control is needed for all positive slopes curbside. 55.The silt fence proposed across the existing and proposed Pipewood Lane is not practical due to site access needs.” 56. The applicant will work with staff to resolve the access issues on Cartway Lane. All voted in favor and the motion carried unanimously with a vote of 5 to 0. Papke moved, McDonald seconded that the Planning Commission recommends approval for aWetland Alteration Permitplans prepared by Ryan Engineering, dated August 20, , 2004, revised October 14, 2004 and January 14, 2005, subject to the following conditions: 1.The grading on Lots 10-12, Block 2 shall be revised to avoid grading within the wetland. 2.The applicant shall submit a five-year maintenance and monitoring plan for new wetland construction to ensure proposed wetland functions and values are obtained and non-native vegetation does not encroach into the mitigation area. The monitoring plan shall include the preparation of annual reports as required by the Minnesota Wetland Conservation Act. 7 Planning Commission Summary – February 15, 2005 3.Wetland buffer widths of 16.5 feet to 20.0 feet shall be maintained around all wetlands on- site. All structures shall maintain a 40-foot setback from wetland buffer edge. Wetland buffers and wetland buffer setbacks shall be shown on the grading plan. Wetland buffer areas shall be preserved, surveyed and signed 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 will pay the City $20 per sign. 4.Drainage and utility easements shall be provided over all existing wetlands, wetland mitigation areas, and storm water infrastructure. Easements shall be at least 20 feet in width to allow access for inspection and maintenance. 5.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: Time (maximum time an area can remain unvegetated Type of Slope when area is not actively being worked) Steeper than 3:1 7 Days 10:1 to 3:1 14 Days Flatter than 10:1 21 Days These areas include constructed storm water management pond side slopes, 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 man made systems that discharge to a surface water. 6.The applicant shall apply for and obtain permits from the appropriate regulatory agencies (e.g., Minnehaha Creek Watershed District, Minnesota Pollution Control Agency, United States Army Corps of Engineers) and comply with their conditions of approval.” All voted in favor and the motion carried unanimously with a vote of 5 to 0. PUBLIC HEARING: CODE AMENDMENT REGARDING ELECTRIC SUBSTATIONS: SECTION 20-574 (9) CONDITIONAL USES IN THE A2 DISTRICT, SECTION 20-814 CONDITIONAL USES IN THE IOP DISTRICT, SECTION 20-257 ELECTRICAL SUBSTATIONS AND CHAPTER 1 DEFINING AND REGULATING SUBSTATIONS. Public Present: Name Address th Dennis Wolf 4291 West 200 Street, Jordan Ronald Jabs 217 Juergens Circle, Jordan 8 Planning Commission Summary – February 15, 2005 Sharmeen Al-Jaff presented the staff report on this item. Commissioner McDonald asked staff to clarify how this proposed amendment related to the specific request of Minnesota Valley Electric. Commissioner Papke asked for clarification of Section 2, item 9 and Section 3, item 13. There’s a request for reasonable and prudent measures to minimize EMF levels along all alternative routes and Section 3, item 12 asking to provide the EMF levels at the maximum and average anticipated loading. Commissioner Keefe asked for clarification on the definitions in Section 1. Chairman Sacchet opened the public hearing. Ron Jabs and Denny Wolf with Minnesota Valley Electric addressed their concerns with the restrictive nature of the ordinance. Chairman Sacchet asked Mr. Jabs’ opinion if the 5 acre requirement was overkill. Denny Wolf suggested that the wording on item number 4, 6 foot high security fence shall surround a distributional electrical, underground electric substation be amended to read that a fence would be installed per the National Safety Code as a minimum. He also recommended wording related to grounding of the electrical fence. Commissioner Keefe asked for discussion about the requirement of a 5 acre site if a 2 to 3 acre range is adequate. Papke moved, McDonald seconded that the Planning Commission recommends approval of the attached amendments to Chapters 1 and 20 amended as follows: Changing Section 2, number 9 and Section 3, number 13 to say alternative line routing. Section 2, number 4 to include the wording, compliant with the National Safety Code, and Item 8 referencing the Minnesota State guidelines for electrical fields. All voted in favor and the motion carried unanimously with a vote of 5 to 0. APPROVAL OF MINUTES:Commissioner Keefe noted the verbatim and summary minutes of the Planning Commission meeting dated February 1, 2005 as presented. Chairman Sacchet adjourned the Planning Commission meeting at 9:15 p.m. Submitted by Kate Aanenson Community Development Director Prepared by Nann Opheim 9