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#10 - CUP for Chapel
STAFF REPORT DATE: 8/3/22 REGULAR MOTION TO: City Council FROM: Ben Hetzel, City Planner REVIEWED BY: Molly Just, Planning Director ITEM: Carmelite Hermitage of the Blessed Virgin Mary Conditional Use Permit for Chapel BACKGROUND Carmelite Hermitage of the Blessed Virgin Mary (Applicant) has applied for a Conditional Use Permit (CUP) for construction of a chapel on the property located at 8249 Demontreville Trail N (PID# 09.029.21.12.0002). The proposed 5,778 square foot chapel and a detached 978 square foot bathroom and mechanical room would be for use by members and outside visitors. The use is allowed by CUP in the Public Facilities (PF) zoning district. PROPOSAL DETAILS/ANALYSIS Applicant: Carmelite Hermitage of the Blessed Virgin Mary Property Owners: Discalced Carmelite Nuns of St. Paul Location: 8249 Demontreville Trail N. Request: Application for a Conditional Use Permit (CUP) to allow a chapel Site Area: 89.6 acres Existing Land Use: Religious Institution Existing Zoning: Public Facilities (PF) and Shoreland Overlay District Surrounding: North – single family homes zoned RR and A West – Lake Demontreville South – single family homes zoned RS East – single family homes zoned RR Comprehensive Plan: Institutional History: The property has been owned by the Discalced Carmelite Nuns of St. Paul since 1955. In 1983 the priests and brothers of the Carmelite Hermitage of the Blessed Virgin Mary joined the property. The property has been used as a religious institution by the members and guests. In 1991 the City of Lake Elmo approved the master plan of the Carmelite Hermitage of the Blessed Virgin Mary. The master plan included a phasing plan of four parts. Phase 1, consisting of a community building and garage was constructed in 1991/92. Phase 2, consisting of a central court yard with covered walkways was constructed in 2001/02. Phase 3 consists of a 2 chapel which is what is currently being proposed. Phase 4 will consist of a visitor building, library, and rooms for community workshops, this is planned for 2028. In August of 2019 the City Council approved a conditional use permit for their chapel. The Carmelites subsequently relinquished the conditional use permit as a part of an agreement with the Jesuit Retreat House to settle issues with access. In 2021 a variance was granted to allow a new road to provide direct access between Demontreville Trail and the Carmelites. Deadline for Action: Application Complete – 6/23/2022 60 Day Deadline – 8/23/2022 Regulations: Article XVI – Public and Semi-Public Districts Article XIX – Shoreland Overlay District 105.12.290 – Conditional Use Permits PROJECT ANALYSIS Because the property does not have a conditional use permit as is required by the Zoning Code, the existing use is considered legal non-conforming. The City’s ordinance states that the lawful use of a building or structure may continue, but that the continuation of the non-conforming use does not include expansion. Since the applicant is requesting expansion of the non-conforming use, by adding a chapel, the City must approve a conditional use permit in order for the applicant to add the chapel and to bring the property in to compliance. The proposed chapel would be to the west of the existing buildings and south of the existing driveway into the site. As shown on the plans, the chapel would be about 5,778 square feet with a 978 square foot detached bathroom and mechanical room. The Chapel height would be about 40 feet with an additional 5 foot cross on the roof. The applicant noted in their project description that the chapel would be used for liturgical services and for personal prayer and would have seating for 48 guests in addition to the seating for 12 members of their community. They also state that since their community members live in an Hermitage and since their way of life is relatively secluded, they do not generate a significant amount of vehicle traffic. They are anticipating an average of 10-15 visitors a day to the site, currently they typically average 1-2 visitors per day plus occasional deliveries. They have one part-time employee to help maintain the grounds and buildings. The Hermitage is open to the public between 7:30 AM and 4:30 PM. They are not planning to advertise or offer programs that would draw large crowds other than special celebrations a few times a year in which guests are invited. Setback and Impervious Surface Requirements. The following table outlines how the proposed use adheres to the setback and impervious surface requirements of the Public and Quasi-Public Open Space District. Public and Quasi Public Open Space Zoning Standards Standard Required Proposed Maximum Parcel Area 20 acres 90 acres 3 Lot Width – Minimum (at ROW) 100 feet Approximately 1793 feet Lot Depth – Minimum 150 feet Approximately 2015 feet Maximum Height 50 feet Approximately 41 feet Maximum Impervious Coverage 15% 1.2% Front Yard Setback – Building 100 feet Approximately 1000 feet Interior Side Yard Setback – Building 100 feet Approximately 900 feet Rear Yard Setback - Building 100 feet Approximately 1000 feet Parking Lot Setback 100 foot Approximately 200 feet Standards for Places of Worship within the Public and Quasi-Public Zoning District. The following outlines standards for places of worship as outlined in the Public and Quasi-Public zoning district. a. Direct access is provided to a public street classified by the Comprehensive Plan as major collector or arterial; Staff Comment. The City approved a variance in 2021 for a direct access road to the Carmelites from Demontreville Trail. The City has classified Demontreville Trail as a major collector street. b. No use may exceed 235 gallons wastewater generation per day per net acre of land; Staff Comment. It is unknown how much wastewater is generated, but it is assumed there is no more than 235 gallons being generated per net acre on a 90 acre site. c. No on-site sewer system shall be designed to handle more than 5,000 gallons per day; Staff Comment. The proposed drainfield is 15,000 square feet in area and according to the SSTS design report dated May 8, 2019 is designed to handle 350 gallons of waste a day. d. Exterior athletic fields shall not include spectator seating, public address facilities or lighting; Staff Comment. There are no exterior athletic fields. e. No freestanding broadcast or telecast antennas are permitted. No broadcast dish or antenna shall extend more than 6 feet above or beyond the principal structure. Staff Comment. There are no broadcast or telecast antennas, existing or proposed. Parking Lot Landscaping and Screening Standards Landscape Plans. The applicant has submitted surveys and project plans showing the existing landscaping and wooded areas on the property. Since the site has extensive areas of trees and the since the proposed chapel would not be removing any existing trees, staff does not recommend that the City review or require additional landscaping on the property. Septic Drainfield. The existing drainfield is to the south of the existing building and the proposed chapel will not affect the existing drainfield. The project plans show a new drainfield to the south of the proposed chapel. This new drainfield will require a permit from the Washington County Public Health and Environment Department before installation. 4 REVIEW COMMENTS Engineering Review. Engineering reviewed this request and provided the attached memo dated June 20th, 2022. The comments must be addressed. Fire Department Review. The Fire Department reviewed this request and provided the attached memo dated June 22nd, 2022. The comments must be addressed. The Planning commission reviewed the request and recommended approval of the conditional use permit with the listed conditions with a 5-0 vote at the July 11, 2022 meeting. RECOMMENDED FINDINGS Conditional use means a land use or development as defined by ordinance that would not be appropriate generally but may be allowed with appropriate restrictions as provided by official controls only upon a finding that all of the following provisions are met. Staff recommends the following findings: 1. The proposed use will not be detrimental to or endanger the public health, safety, comfort, convenience or general welfare of the neighborhood or the city. The proposed use should not be detrimental or in any way endanger the public health, safety, comfort. 2. The use or development conforms to the City of Lake Elmo Comprehensive Plan. The proposed use conforms to the Comprehensive Plan. 3. The use or development is compatible with the existing neighborhood. The proposed use is permitted in Public Facilities zoning district subject to a CUP. 4. The proposed use meets all specific development standards for such use listed in the Zoning Code. The proposed use must meet the provisions of Article XVI – Public and Semi-Public Districts. 5. If the proposed use is in a flood plain management or shoreland area, the proposed use meets all the specific standards for such use listed in Article XIX (Shoreland Management) and Title 100 (Flood Plain Management). The proposed use must meet the Shoreland Regulations. 6. The proposed use will be designed, constructed, operated and maintained so as to be compatible in appearance with the existing or intended character of the general vicinity and will not change the essential character of that area. The proposed use will be compatible in appearance with the existing character of the general vicinity and will not change the essential character of the area. 7. The proposed use will not be hazardous or create a nuisance as defined under this Chapter to existing or future neighboring structures. The proposed chapel is to be set back form the public right of way and from adjacent land owners and so should not create a nuisance to existing or future neighboring structures. 8. The proposed use will be served adequately by essential public facilities and services, including streets, police and fire protection, drainage structures, refuse disposal, water and sewer systems and schools or will be served adequately by such facilities and services provided by the persons or agencies responsible for the establishment of the proposed use. 5 The proposed chapel will be adequately served by public services or facilities. 9. The proposed use will not create excessive additional requirements at public cost for public facilities and services and will not be detrimental to the economic welfare of the community. The proposed use will not create excessive additional requirements at public cost. 10. The proposed use will not involve uses, activities, processes, materials, equipment and conditions of operation that will be detrimental to any persons, property or the general welfare because of excessive production of traffic, noise, smoke, fumes, glare or odors. The proposed use should not be detrimental to persons, property, or the general public welfare. 11. Vehicular approaches to the property, where present, will not create traffic congestion or interfere with traffic on surrounding public thoroughfares. With the new direct access (Res. 2021-092) the proposed use should not create traffic congestion. The chapel will mainly be used by members and intermittent guests. 12. The proposed use will not result in the destruction, loss or damage of a natural or scenic feature of major importance. The proposed use should not impact natural or scenic features. FISCAL IMPACT None. RECOMMENDED CONDITIONS OF APPROVAL 1) The applicant must obtain all other necessary City, State, and other governing body permits and approvals before the commencement of any construction activity on the site. These include, but not limited to, a Valley Branch Watershed District permit, approval of revised plans by the City Engineer, a building permit, and an on-site wastewater (septic) permit. 2) No construction by begin until all items and changes outlined by the City Engineer in the memorandum addressing the Carmelite Chapel Conditional Use Permit and Site Improvements dated June 20th, 2022 are addressed to the satisfaction of the City Engineer. 3) No construction may begin until all items outlined by the Fire Chief in his memo dated June 22nd 2022 are addressed to the satisfaction of the Fire Chief. 4) No construction may begin until the applicant has provided written documentation demonstrating adequate wastewater management facilities exist or are proposed to serve the proposed chapel. This should include either a Washington County inspection compliance report for the existing on-site wastewater system or a wastewater management plan and permit approved by Washington County to serve the proposed chapel. 5) If the applicant or owner has not taken action toward starting the chapel or if substantial construction of the chapel has not taken place within 12 months of the City’s approval of conditional use permit, the CUP approval shall become void. The applicant or owner may request City Council approval of a time extension to start or implement the conditional use permit. 6 OPTIONS: The City Council may: Approve the Conditional Use Permit with recommended findings and conditions of approval. Approve the Conditional Use Permit with amended findings and conditions of approval. Deny the Conditional Use Permit, citing findings for denial. RECOMMENDATION: Staff recommends the City Council approve the CUP to allow the chapel on the subject property with the listed conditions. Suggested motion: “Move to approve Resolution 2022-075, approving a Conditional Use Permit (CUP) for the construction of a chapel with the listed conditions based on the findings listed in the staff report.” ATTACHMENTS: 1. Carmelite Site Location Map 2. Engineering Memo (dated 6-20-2022) 3. Fire Department Memo (dated 6-22-2022) 4. Land Use Application 5. Narrative 6. Plan Set 7. Stormwater Management Plan (dated 6-22-2022) 8. Architectural Plans 9. Planning Commission Minutes CITY OF LAKE ELMO WASHINGTON COUNTY STATE OF MINNESOTA RESOLUTION 2022-075 A RESOLUTION APPROVING A CONDITIONAL USE PERMIT FOR THE CONSTRUCTION OF A CHAPEL WITH CONDITIONS AT 8249 DEMONTREVILLE TRAIL NORTH WHEREAS, the City of Lake Elmo is a municipal corporation organized and existing under the laws of the State of Minnesota; and WHEREAS, Carmelite Hermitage of the Blessed Virgin Mary (the "Applicant") has submitted an application to the City of Lake Elmo (the "City") for a Conditional Use Permit for the construction of a chapel on the property located at 8249 Demontreville Trail North (PID# 0902921120002) (the "Property"); and WHEREAS, the Lake Elmo Planning Commission held a public hearing on said matter on July 11, 2022; and WHEREAS, the Lake Elmo Planning Commission has submitted its report and recommendation to the City Council as part of a Staff Memorandum dated August 3, 2022; and WHEREAS, the City Council considered said matter at its August 3, 2022 meeting; and NOW, THEREFORE, based on the testimony elicited and information received, the City Council makes the following: FINDINGS 1) That the procedures for obtaining said Conditional Use Permit are found in the Lake Elmo Zoning Ordinance, Section 105.12.290. 2) That all the submission requirements of said Section 105.12.290 have been met by the Applicant. 3) That the proposed Conditional Use Permit is for the construction of a Chapel. 4) The proposed use will not be detrimental to or endanger the public health, safety, comfort, convenience or general welfare of the neighborhood or the city. The proposed use should not be detrimental or in any way endanger the public health, safety, comfort. 5) The use or development conforms to the City of Lake Elmo Comprehensive Plan. The proposed use conforms to the Comprehensive Plan. 6) The use or development is compatible with the existing neighborhood. The proposed use is permitted in the Public Facilities zoning district subject to a CUP. 7) The proposed use meets all specific development standards for such use listed in the Zoning Code. The proposed use must meet the provisions of Article XVI – Public and Semi-Public Districts. 8) If the proposed use is in a flood plain management or shoreland area, the proposed use meets all the specific standards for such use listed in Article XIX (Shoreland Management) and Title I 00 (Flood Plain Management). The proposed use must meet the Shoreland Regulations. 9) The proposed use will be designed, constructed, operated, and maintained so as to be compatible in appearance with the existing or intended character of the general vicinity and will not change the essential character of that area. The proposed use will be compatible in appearance with the existing character of the general vicinity and will not change the essential character of the area. I0) The proposed use will not be hazardous or create a nuisance as defined under this Chapter to existing or future neighboring structures. The proposed chapel is to be set back form the public right of way and from adjacent land owners and so should not create a nuisance to existing or future neighboring structures. 11) The proposed use will be served adequately by essential public facilities and services, including streets, police and fire protection, drainage structures, refuse disposal, water and sewer systems and schools or will be served adequately by such facilities and services provided by the persons or agencies responsible for the establishment of the proposed use. The proposed chapel will be adequately served by public services or facilities and served by facilities provided by the applicant. 12) The proposed use will not create excessive additional requirements at public cost for public facilities and services and will not be detrimental to the economic welfare of the community. The proposed use should not create excessive additional requirements at public cost. 13) The proposed use will not involve uses, activities, processes, materials, equipment, and conditions of operation that will be detrimental to any persons, property, or the general welfare because of excessive production of traffic, noise, smoke, fumes, glare, or odors. The proposed use should not be detrimental to persons, property, or the general public welfare. 14) Vehicular approaches to the property, where present, will not create traffic congestion or interfere with traffic on surrounding public thoroughfares. With the new direct access (Res. 2021-092) the proposed use should not create traffic congestion. The chapel will mainly be used by members and intermittent guests. 15) The proposed use will not result in the destruction, loss, or damage of a natural or scenic feature of major importance. The proposed use should not impact natural or scenic features. 16) That, in accordance with City Code Section 105.12.290, the construction of a chapel shall be permissible under the Conditions 1-5 as provided in the decision below, and incorporated herein: DECISION NOW, THEREFORE, BE IT FURTHER RESOLVED, and based upon the information received and the above Findings, that the City Council of the City of Lake Elmo hereby approves the request by Carmelite Hermitage of the Blessed Virgin Mary for a Conditional Use Permit for the construction of a chapel on the property located at 8249 Demontreville Trail North, and grants the same, subject to the following conditions of approval: 1) The applicant must obtain all other necessary City, State, and other governing body permits and approvals before the commencement of any construction activity on the site. These include, but not limited to, a Valley Branch Watershed District permit, approval of revised plans by the City Engineer, a building permit, and an on-site wastewater (septic) permit. 2) No construction by begin until all items and changes outlined by the City Engineer in the memorandum addressing the Carmelite Chapel Conditional Use Permit and Site Improvements dated June 20th, 2022 are addressed to the satisfaction of the City Engineer. 3) No construction may begin until all items outlined by the Fire Chief in his memo dated June 22nd 2022 are addressed to the satisfaction of the Fire Chief. 4) No construction may begin until the applicant has provided written documentation demonstrating adequate wastewater management facilities exist or are proposed to serve the proposed chapel. This should include either a Washington County inspection compliance report for the existing on-site wastewater system or a wastewater management plan and permit approved by Washington County to serve the proposed chapel. 5) If the applicant or owner has not taken action toward starting the chapel or if substantial construction of the chapel has not taken place within 12 months of the City’s approval of conditional use permit, the CUP approval shall become void. The applicant or owner may request City Council approval of a time extension to start or implement the conditional use permit. Passed and duly adopted this 3rd day of August, 2022 by the City Council of the City of Lake Elmo, Minnesota. ____________________________________ Mayor Charles Cadenhead ATTEST: _______________________________ Julie Johnson, City Clerk Context Map ) Carmelite Property Site Map )- Proposed Chapel Location ´ Map Created by: Planning DeptMap Date: June 2022 PAGE 1 of 2 MEMORANDUM Date: June 20, 2022 To: Ben Hetzel, City Planner Re: Carmelite Heritage Chapel Site Improvements Cc: Molly Just, Planning Director Engineering Site Plan Review Chad Isakson, Assistant City Engineer From: Jack Griffin, P.E., City Engineer A Site Plan engineering review has been completed for the Carmelite Hermitage Chapel Conditional Use Construction Plan set. The site is located at 8249 DeMontreville Trail North in Lake Elmo. The submittal consisted of the following documentation received on June 14, 2022: Site Plans prepared by Pioneer Engineering, dated April 26, 2019. Stormwater Management Report prepared by Pioneer Engineering, dated April 26, 2019. Certificate of Survey prepared by Landmark Surveying, dated June 27, 2018. Dated April 5, 2019. Septic System Plan prepared by Steinbrecher Companies, Inc., dated May 8, 2019. REVIEW FINDINGS AND RECOMMENDATIONS Site Access. Access to the site will be provided by a private driveway extended from DeMontreville Trail. The private driveway construction is in progress being implemented through a separate project permitted by the city. A Grading Permit is required per Section 105 of the City Code as the project will result in moving more than 50 cubic yards of material. Site plans have been submitted with the application and must be approved by the city prior to the start of any construction. A Valley Branch Watershed District (VBWD) permit will be required. The site plan is subject to a storm water management plan (SWMP) meeting State, VBWD and City rules and regulations. A permit was received by the applicant in 2019 but has since expired. Storm water facilities proposed for meeting State, VBWD and City permitting requirements must be designed and constructed in accordance with the City Engineering Design Standards Manual available on the City website, dated January 2022, including maintenance access roads. Ownership and Maintenance. The storm water facilities constructed for this development should remain privately owned and maintained. The applicant will be required to execute and record a Stormwater Maintenance and Easement Agreement in the City’s standard form of agreement. Easements. The storm water facility 100‐year HWL must be fully contained within the subject property and easements must be provided to protect the 100‐year HWL flood area, all emergency overflow pathways, and maintenance access roads. Private Water Supply. Municipal water is not planned to serve this parcel in the 2040 Comprehensive Plan. The proposed Chapel will receive its domestic water supply from an existing private well located onsite through the extension of a private water service. Water facilities must be provided in accordance MDH requirements (water supply well) and the Minnesota building code (water service plumbing). Municipal water supply will not be available to the facility for fire suppression. FOCUS ENGINEERING, inc. Cara Geheren, P.E. 651.300.4261 Jack Griffin, P.E. 651.300.4264 Ryan Stempski, P.E. 651.300.4267 Chad Isakson, P.E. 651.300.4283 PAGE 2 of 2 Private Sewer. The proposed Chapel resides outside the city’s 2040 Comprehensive Plan MUSA area. The facility will be served by a private on‐site wastewater treatment system to be regulated by Washington County. The applicant must obtain permit approval through Washington County and provide written documentation of all approvals to the city. The approved wastewater management plan facilities must be accurately shown to scale on the Site Plans. No construction may begin until the applicant has received City Engineer approval for the Final Construction Plans; the applicant has obtained and submitted to the City all applicable permits, easements and permissions needed for the project; and a preconstruction meeting has been held by the City’s engineering department. SITE IMPROVEMENT PLANS AND STORMWATER MANAGEMENT PLAN Any revisions to the Storm Water Management Plan (SWMP) to meet VBWD permit requirements must be resubmitted to the city for further review and consideration. Sheet 4.10. A plan note should be added to indicate the private sanitary sewer and water service lines to be installed per state plumbing code requirements. Sheet 5.10. Revise grading plan to revise storm water BMP site to meet City of Lake Elmo and MN Storm Water Manual standards and as follows: Provide 10:1 aquatic bench and 10:1 maintenance bench around retention BMP. Add typical pond detail cross section to identify required benches. Provide defined rip rap overflow location between retention basin and infiltration basin and define overflow spot elevation. Sheet 5.10 Provide drainage and utility easement over storm water BMP including the 100‐year HWL, emergency EOF pathway, and pond maintenance access road and access bench. Easement area must be clearly shown on the plans. Once an approved Washington County SSTS design is obtained, the site plans must be updated to show the proposed on‐site SSTS design system location and redundant drain field location. The plans must call out detailed site protection from construction activities for the proposed on‐site wastewater treatment system (both primary and secondary drainfield) and for the proposed storm water infiltration basin. All plan details and plan notes relating to grading, site restoration, and erosion control must be revised to be consistent with the City Engineering Design Standards details and plan notes, dated January 2022. “Proudly Serving Neighbors & Friends” Lake Elmo Fire Department Memorandum To: Ben Hetzel, City Planner From: Dustin Kalis, Fire Chief Date: 6/22/22 Re: Conditional Use Permit for 8249 Demontreville Trail N, Carmelite Chapel _______________________________________________________________________________________ The Lake Elmo Fire Department has completed a Conditional Use Permit review for 8249 Demontreville Trail N, Carmelite Chapel based on submittals dated 6/2/22 with the following comments: 1) Building shall have a separate address. 8253 Mount Carmel Road is to be used for the address of the chapel. 2) Building address numbers shall be plainly visible from the street fronting the property and shall contrasting color from the background. Addresses is required to be posted adjacent to or on monument sign at Demontreville Trail and Mount Carmel Road. 3) All roads and drive lanes shall meet the Lake Elmo Fire Department requirements for widths and turning radiuses. Provide layout showing Lake Elmo Fire Apparatus turning radius overlay on all drive lanes and parking lot. 4) Further review of the parking lot as fire department access road is needed. Fire apparatus access roads shall extend within 150 feet of all portions of the facility and all portions of the exterior walls of the first story of the building as measured by an approved route around the exterior of the building. 5) An approved signage and marking plan shall be determined for all No Parking and Fire Lane access roads. 6) A Fire Department lock box is required for emergency access to the building at an approved location and provide keys for emergency access into and throughout the occupancy as required. 7) The fire sprinkler system shall be installed compliant with provisions of Minnesota State Building Code Chapter 1306.0020 Municipal Option Subpart 3 (new buildings) and 2016 NFPA Standard 13, Installation of Sprinkler Systems. City permit required prior to initiation of work. 8) Install emergency egress illumination in the means of egress including exit discharge compliant with 2020 MSFC. 9) Install compliant exit signage as required by the 2020 MSFC. 10) Provide and install dry chemical fire extinguishers certified for service and tagged as required. Service classification rating shall be a minimum 2A classification rating and maximum travel distance of 75 feet to extinguishers. The minimum classification rating may be upgraded for special or extra hazard areas within the occupancy. “Proudly Serving Neighbors & Friends” 11) Rooms containing controls for air-conditioning systems, roof access, elevator equipment, sprinkler risers and valves, or other fire detection, suppression or control elements shall be identified for the use of the fire department. Approved signs required to identify fire protection equipment and equipment location, shall be constructed of durable materials, permanently installed and readily visible. Codes and Standards Used for this Review This review is based on the following codes and standards as adopted and in effect in the State of Minnesota at the time of plan submittal. 2020 Minnesota State Fire Code 2020 Minnesota State Building Code, Ch. 1306 Lake Elmo Fire Department Fire Code Policy NFPA 72, 2016 edition NFPA 13, 2016 edition BASIN 100P 00-ENG-119045-SHEET-1.10-CVR 1.10COVERI hereby certify that this plan was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota c 13OFCARMELITE HERMITAGE CHAPEL LAKE ELMO, MINNESOTA 04-26-2019 PJC NCR Name Reg. No.Date Revisions Date Designed Drawn 2019 Pioneer Engineering, P.A. Mendota Heights, MN 55120 2422 Enterprise Drive (651) 681-1914 Fax: 681-9488www.pioneereng.com LANDSCAPE ARCHITECTSLAND SURVEYORSLAND PLANNERSCIVIL ENGINEERS 04-26-2019 CARMELITE HERMITAGE 8249 DEMONTREVILLE TRAIL NORTH19860 Paul J. Cherne 1. 7-15-2019 City Comments LAKE ELMO, MN 55042 2. 8-5-2019 City Comments3. 6-22-2022 C.U.P. Resubmittal CARMELITE HERMITAGE CHAPEL CONDITIONAL USE CONSTRUCTION PLAN SET LAKE ELMO, MINNESOTA LOCATION MAP SHEET INDEX COVER SHEET 1.10 LEGEND SHEET 1.20 UTILITY PLAN 4.10 OVERALL SETBACK PLAN EROSION CONTROL PLAN SEEDING PLAN 5.30 DETAILS 6.10-6.13 XXXXXX XX-XX SITE PLAN 3.20 EXISTING CONDITIONS 2.10 3.10 5.20 GRADING PLAN 5.10 00-ENG-119045-SHEET-1.20-LGND 1.20LEGENDI hereby certify that this plan was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota c 13OFCARMELITE HERMITAGE CHAPEL LAKE ELMO, MINNESOTA 04-26-2019 PJC NCR Name Reg. No.Date Revisions Date Designed Drawn 2019 Pioneer Engineering, P.A. Mendota Heights, MN 55120 2422 Enterprise Drive (651) 681-1914 Fax: 681-9488www.pioneereng.com LANDSCAPE ARCHITECTSLAND SURVEYORSLAND PLANNERSCIVIL ENGINEERS 04-26-2019 CARMELITE HERMITAGE 8249 DEMONTREVILLE TRAIL NORTH19860 Paul J. Cherne 1. 7-15-2019 City Comments LAKE ELMO, MN 55042 2. 8-5-2019 City Comments3. 6-22-2022 C.U.P. Resubmittal Garage Porch Wood Shop PorchBuildings and Courtyards BushesBushesWindow WellWindow Welloctagon stone pillar octagon stone pillar 00-ENG-119045-SHEET-2.10-EX CON 2.10EXISTING CONDITIONSI hereby certify that this plan was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota c 13OFCARMELITE HERMITAGE CHAPEL LAKE ELMO, MINNESOTA 04-26-2019 PJC NCR Name Reg. No.Date Revisions Date Designed Drawn 2019 Pioneer Engineering, P.A. Mendota Heights, MN 55120 2422 Enterprise Drive (651) 681-1914 Fax: 681-9488www.pioneereng.com LANDSCAPE ARCHITECTSLAND SURVEYORSLAND PLANNERSCIVIL ENGINEERS 04-26-2019 CARMELITE HERMITAGE 8249 DEMONTREVILLE TRAIL NORTH19860 Paul J. Cherne 1. 7-15-2019 City Comments LAKE ELMO, MN 55042 2. 8-5-2019 City Comments3. 6-22-2022 C.U.P. Resubmittal SETBACK SUMMARY SETBACK COUNTY ROAD 2,750 FT SETBACK PUBLIC STREET 1,025 FT SETBACK OHW 980 FT SETBACK TOP OF BLUFF 220 FT SETBACK OHW - SEPTIC 810 FT MAXIMUM IMPERVIOUS COVERAGE 1.2% 00-ENG-119045-SHEET-3.10-SITE 3.10OVERALL SETBACK PLANI hereby certify that this plan was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota c 13OFCARMELITE HERMITAGE CHAPEL LAKE ELMO, MINNESOTA 04-26-2019 PJC NCR Name Reg. No.Date Revisions Date Designed Drawn 2019 Pioneer Engineering, P.A. Mendota Heights, MN 55120 2422 Enterprise Drive (651) 681-1914 Fax: 681-9488www.pioneereng.com LANDSCAPE ARCHITECTSLAND SURVEYORSLAND PLANNERSCIVIL ENGINEERS 04-26-2019 CARMELITE HERMITAGE 8249 DEMONTREVILLE TRAIL NORTH19860 Paul J. Cherne 1. 7-15-2019 City Comments LAKE ELMO, MN 55042 2. 8-5-2019 City Comments3. 6-22-2022 C.U.P. Resubmittal BASIN 100P PARKING SUMMARY STALLS 17 HANDICAPPED STALLS 1 00-ENG-119045-SHEET-3.10-SITE 3.20SITE PLANI hereby certify that this plan was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota c 13OFCARMELITE HERMITAGE CHAPEL LAKE ELMO, MINNESOTA 04-26-2019 PJC NCR Name Reg. No.Date Revisions Date Designed Drawn 2019 Pioneer Engineering, P.A. Mendota Heights, MN 55120 2422 Enterprise Drive (651) 681-1914 Fax: 681-9488www.pioneereng.com LANDSCAPE ARCHITECTSLAND SURVEYORSLAND PLANNERSCIVIL ENGINEERS 04-26-2019 CARMELITE HERMITAGE 8249 DEMONTREVILLE TRAIL NORTH19860 Paul J. Cherne 1. 7-15-2019 City Comments LAKE ELMO, MN 55042 2. 8-5-2019 City Comments3. 6-22-2022 C.U.P. Resubmittal 00-ENG-119045-SHEET-4.10-UTIL 4.10UTILITY PLANI hereby certify that this plan was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota c 13OFCARMELITE HERMITAGE CHAPEL LAKE ELMO, MINNESOTA 04-26-2019 PJC NCR Name Reg. No.Date Revisions Date Designed Drawn 2019 Pioneer Engineering, P.A. Mendota Heights, MN 55120 2422 Enterprise Drive (651) 681-1914 Fax: 681-9488www.pioneereng.com LANDSCAPE ARCHITECTSLAND SURVEYORSLAND PLANNERSCIVIL ENGINEERS 04-26-2019 CARMELITE HERMITAGE 8249 DEMONTREVILLE TRAIL NORTH19860 Paul J. Cherne 1. 7-15-2019 City Comments LAKE ELMO, MN 55042 2. 8-5-2019 City Comments3. 6-22-2022 C.U.P. Resubmittal NOTE: 1.ONSITE DISPOSAL SYSTEM DESIGNED BY OTHERS 00-ENG-119045-SHEET-5.10-GRAD 5.10GRADING PLANI hereby certify that this plan was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota c 13OFCARMELITE HERMITAGE CHAPEL LAKE ELMO, MINNESOTA 04-26-2019 PJC NCR Name Reg. No.Date Revisions Date Designed Drawn 2019 Pioneer Engineering, P.A. Mendota Heights, MN 55120 2422 Enterprise Drive (651) 681-1914 Fax: 681-9488www.pioneereng.com LANDSCAPE ARCHITECTSLAND SURVEYORSLAND PLANNERSCIVIL ENGINEERS 04-26-2019 CARMELITE HERMITAGE 8249 DEMONTREVILLE TRAIL NORTH19860 Paul J. Cherne 1. 7-15-2019 City Comments LAKE ELMO, MN 55042 2. 8-5-2019 City Comments3. 6-22-2022 C.U.P. Resubmittal BASIN 100P LEGEND 00-ENG-119045-SHEET-5.20-EROS 5.20EROSION CONTROL PLANI hereby certify that this plan was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota c 13OFCARMELITE HERMITAGE CHAPEL LAKE ELMO, MINNESOTA 04-26-2019 PJC NCR Name Reg. No.Date Revisions Date Designed Drawn 2019 Pioneer Engineering, P.A. Mendota Heights, MN 55120 2422 Enterprise Drive (651) 681-1914 Fax: 681-9488www.pioneereng.com LANDSCAPE ARCHITECTSLAND SURVEYORSLAND PLANNERSCIVIL ENGINEERS 04-26-2019 CARMELITE HERMITAGE 8249 DEMONTREVILLE TRAIL NORTH19860 Paul J. Cherne 1. 7-15-2019 City Comments LAKE ELMO, MN 55042 2. 8-5-2019 City Comments3. 6-22-2022 C.U.P. Resubmittal BASIN 100P · · · · · · · · · · · · · 00-ENG-119045-SHEET-5.30-SEED 5.30SEEDING PLANI hereby certify that this plan was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota c 13OFCARMELITE HERMITAGE CHAPEL LAKE ELMO, MINNESOTA 04-26-2019 PJC NCR Name Reg. No.Date Revisions Date Designed Drawn 2019 Pioneer Engineering, P.A. Mendota Heights, MN 55120 2422 Enterprise Drive (651) 681-1914 Fax: 681-9488www.pioneereng.com LANDSCAPE ARCHITECTSLAND SURVEYORSLAND PLANNERSCIVIL ENGINEERS 04-26-2019 CARMELITE HERMITAGE 8249 DEMONTREVILLE TRAIL NORTH19860 Paul J. Cherne 1. 7-15-2019 City Comments LAKE ELMO, MN 55042 2. 8-5-2019 City Comments3. 6-22-2022 C.U.P. Resubmittal · · · · · · · 00-ENG-119045-SHEET-6.10-DTLS 6.10GRADING DETAILSI hereby certify that this plan was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota c 13OFCARMELITE HERMITAGE CHAPEL LAKE ELMO, MINNESOTA 04-26-2019 PJC NCR Name Reg. No.Date Revisions Date Designed Drawn 2019 Pioneer Engineering, P.A. Mendota Heights, MN 55120 2422 Enterprise Drive (651) 681-1914 Fax: 681-9488www.pioneereng.com LANDSCAPE ARCHITECTSLAND SURVEYORSLAND PLANNERSCIVIL ENGINEERS 04-26-2019 CARMELITE HERMITAGE 8249 DEMONTREVILLE TRAIL NORTH19860 Paul J. Cherne 1. 7-15-2019 City Comments LAKE ELMO, MN 55042 2. 8-5-2019 City Comments3. 6-22-2022 C.U.P. Resubmittal 00-ENG-119045-SHEET-6.10-DTLS 6.11CITY DETAILSI hereby certify that this plan was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota c 13OFCARMELITE HERMITAGE CHAPEL LAKE ELMO, MINNESOTA 04-26-2019 PJC NCR Name Reg. No.Date Revisions Date Designed Drawn 2019 Pioneer Engineering, P.A. Mendota Heights, MN 55120 2422 Enterprise Drive (651) 681-1914 Fax: 681-9488www.pioneereng.com LANDSCAPE ARCHITECTSLAND SURVEYORSLAND PLANNERSCIVIL ENGINEERS 04-26-2019 CARMELITE HERMITAGE 8249 DEMONTREVILLE TRAIL NORTH19860 Paul J. Cherne 1. 7-15-2019 City Comments LAKE ELMO, MN 55042 2. 8-5-2019 City Comments3. 6-22-2022 C.U.P. Resubmittal 00-ENG-119045-SHEET-6.10-DTLS 6.12CITY DETAILSI hereby certify that this plan was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota c 13OFCARMELITE HERMITAGE CHAPEL LAKE ELMO, MINNESOTA 04-26-2019 PJC NCR Name Reg. No.Date Revisions Date Designed Drawn 2019 Pioneer Engineering, P.A. Mendota Heights, MN 55120 2422 Enterprise Drive (651) 681-1914 Fax: 681-9488www.pioneereng.com LANDSCAPE ARCHITECTSLAND SURVEYORSLAND PLANNERSCIVIL ENGINEERS 04-26-2019 CARMELITE HERMITAGE 8249 DEMONTREVILLE TRAIL NORTH19860 Paul J. Cherne 1. 7-15-2019 City Comments LAKE ELMO, MN 55042 2. 8-5-2019 City Comments3. 6-22-2022 C.U.P. Resubmittal USED 00-ENG-119045-SHEET-6.10-DTLS 6.13CITY DETAILSI hereby certify that this plan was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota c 13OFCARMELITE HERMITAGE CHAPEL LAKE ELMO, MINNESOTA 04-26-2019 PJC NCR Name Reg. No.Date Revisions Date Designed Drawn 2019 Pioneer Engineering, P.A. Mendota Heights, MN 55120 2422 Enterprise Drive (651) 681-1914 Fax: 681-9488www.pioneereng.com LANDSCAPE ARCHITECTSLAND SURVEYORSLAND PLANNERSCIVIL ENGINEERS 04-26-2019 CARMELITE HERMITAGE 8249 DEMONTREVILLE TRAIL NORTH19860 Paul J. Cherne 1. 7-15-2019 City Comments LAKE ELMO, MN 55042 2. 8-5-2019 City Comments3. 6-22-2022 C.U.P. Resubmittal Carmelite Hermitage Chapel Lake Elmo, Minnesota Storm Water Management Plan April 26, 2019 Revised July 12, 2019 Revised August 22, 2019 Revised June 22, 2022 Property Owner: Carmelite Hermitage 8249 DeMontreville Trail N Lake Elmo, Minnesota 55042 Consultant to Project Owner: Pioneer Engineering, P.A. 2422 Enterprise Drive Mendota Heights Minnesota 5512 Carmelite Hermitage PE Project #: 119045 Page 1 Date: 04/26/2019 Table of Contents I. Introduction ............................................................................................................................................... 2 II. Existing Site Conditions ........................................................................................................................... 2 A. Current Land Use ................................................................................................................................. 2 B. Topography - Existing Hydrology ....................................................................................................... 2 C. Special or Impaired Waters .................................................................................................................. 2 D. Soils ...................................................................................................................................................... 2 III. Proposed Site Conditions & Design Considerations ............................................................................... 4 A. Proposed Development ........................................................................................................................ 4 B. Proposed Topography .......................................................................................................................... 4 C. Design Requirements ........................................................................................................................... 4 1. Rate Control ...................................................................................................................................... 4 2. Water Quality .................................................................................................................................... 4 3. Volume Control ................................................................................................................................ 4 4. Storm Sewer Design ......................................................................................................................... 5 D. Proposed Hydrology ............................................................................................................................ 6 1. Rate Control ...................................................................................................................................... 6 2. Water Quality .................................................................................................................................... 6 3. Volume Control ................................................................................................................................ 7 Appendix A: Hydrology Maps Appendix B: Hydrology Calculations Appendix C: Soils Reports Appendix D: Storm Sewer Pipe Design I hereby certify that this Specification, plan, or report was prepared by me or under my direct supervision and that I am a duly Registered Professional Engineer under the laws of the State of Minnesota. Paul Cherne Minn. Reg. No. 19860 Date: April 26, 2019 Carmelite Hermitage PE Project #: 119045 Page 2 Date: 04/26/2019 I. Introduction The following is a hydrology summary for the construction of a 5,000 sf chapel, utility building and related parking and sidewalks. The site is located east of Lake DeMontreville, approximately ½ mile south of DeMontreville Trail N in Lake Elmo, Minnesota. II. Existing Site Conditions A. Current Land Use The development site is a 90 acre parcel consisting of woods and pasture. The property borders Lake DeMontreville on the west. The current use of the site is a residential religious community. B. Topography ‐ Existing Hydrology The topography of the site is generally rolling and majority of the site drains west to Lake DeMontreville. The Surface Waters that receive stormwater within one mile are shown in the Drainage Maps in APPENDIX A. C. Special or Impaired Waters A special and impaired waters search was completed using the MPCA search engine ( http://pca- gis02.pca.state.mn.us/CSW/index.html ) on April 8, 2019. Based on that review, this project has no discharge point within one mile of, and flows to, a special water listed in Appendix A, Part B of the NPDES Construction Site General Permit. The project does not have a discharge point within one mile of, and flows to, a water listed as impaired under Section 303(D) of the Federal Clean Water Act. D. Soils A geotechnical report was performed on the site. The soils encountered are the site consists of topsoil at the surface followed by mostly glacially deposited soil to the termination depths of the borings. Some fills were also encountered. The topsoil layer varied from about 1/4 to 1/2 foot thick. The material was mostly silty sand with varying amounts of organic material, as well as layers of silt and clay interwoven within the silty sand. One soil boring was executed within the proposed infiltration area that showed silty soils. These findings led to an infiltration rate of 0.2 in/hr for the proposed basin. This rate determined the area required to drawdown the volume flowing into the basin within 48 hours (see Infiltration Volume Summary Table under Proposed Hydrology Section). The full report can be found in Appendix C. The hydrologic soil groups obtained from the USDA Natural Resources Conservation Services Soils Survey Map were used in the existing and proposed models of the site. Shape file data was downloaded from the USDA Web Soil Survey to determine their locations. A review of the USDA Natural Resources Conservation Services Soils Survey Map (See Appendix C) indicated the following soils on site: Carmelite Hermitage PE Project #: 119045 Page 3 Date: 04/26/2019 Soil Symbol Soil Name Hydrologic Soil Group Erosion Potential % of Site 49 Antigo silt loam, 0 to 2 percent slopes B Slight 6.1% 49B Antigo silt loam, 2 to 6 percent slopes B Slight 19.1% 49C Antigo silt loam, 6 to 15 percent slopes B Slight 62.8% Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long-duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high-water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Carmelite Hermitage PE Project #: 119045 Page 4 Date: 04/26/2019 III. Proposed Site Conditions & Design Considerations A. Proposed Development The proposed project consists of a 5,000 sf chapel, utility building and related parking and sidewalks. B. Proposed Topography The proposed drainage patterns will be reflective of the existing drainage patterns when possible. The drainage maps are shown in Appendix A. C. Design Requirements The Valley Branch Watershed District Revised Rules and Regulations and the City of Lake Elmo Stormwater Rules require all new development to meet flow rate, water quality and volume requirements. These requirements are summarized as follows: 1. Rate Control The proposed flow rate from the proposed development shall not exceed the flow rate of the existing drainage areas for the 2-, 10- and 100-year storm events and the 100 year 10-day snowmelt event. 2. Water Quality The City of Lake Elmo requires proposed stormwater management plans to meet all requirements of the NPDES Construction Stormwater permit and watersheds having jurisdiction over the site. To meet the NPDES Construction Stormwater Permit the permanent sedimentation basins must: The basin must have a permanent volume of 1,800 cubic feet of storage below the outlet pipe for each acre that drains to the basin. The basin must be designed to provide live storage for a water quality volume (calculated as an instantaneous volume) of one (1) inch of runoff from the new impervious surfaces created by the project. Basin outlets shall be designed such that the water quality volume is discharged at no more than 5.66 cubic feet per second (cfs) per acre of surface area of the pond. The basin’s water quality volume is calculated as ½ inch of runoff from the new impervious surfaces created by the project. 3. Volume Control The City of Lake Elmo requires the volume of stormwater runoff discharging from a proposed site shall not be greater than the volume of stormwater runoff discharging prior to proposed site alteration for the 2- , 10-, and 100-year storm events. The analysis for the volume of stormwater runoff shall be calculated using the Soil Conservation Service Type II time distribution for the 2-, 10-, and 100-year 24-hour storm events. The volume of stormwater runoff prior to the proposed development shall be calculated at the pre-settlement condition as defined in the State of Minnesota Stormwater Manual for a “meadow” condition based on the applicable hydrologic soil group(s) for the development. Carmelite Hermitage PE Project #: 119045 Page 5 Date: 04/26/2019 Hydrologic Soil Group Runoff Curve Number A 30 B 58 C 71 D 78 On sites without restrictions, stormwater runoff volumes will be controlled and the post-construction runoff volume shall be retained on site for 1.1 inches of runoff from impervious surfaces. If a site has restrictions where infiltration is not feasible or advised, such as karst topography, very fast or very slow infiltrating soils, shallow bedrock, a shallow confining layer/rough terrain, shallow groundwater, Drinking Water Management Supply Areas, and/or potential stormwater hotspots, as determined by the applicant and agreed upon by the VBWD or as determined by the VBWD, the applicant must follow these flexible treatment options: i. Project must first attempt to design the site to achieve retention of at least 0.55 inches of runoff from the proposed impervious surfaces and remove 75% of the annual total phosphorus load leaving all points on the site. Options considered and presented shall examine the merits of relocating project elements to address varying soil conditions and other constraints across the site. ii. If the project cannot achieve the standards listed in Standard 6Di above, the project shall achieve volume reduction to the maximum extent practicable and remove 75% of the annual total phosphorus load leaving all points on the site. Options considered and presented shall examine the merits of relocating project elements to address varying soil conditions and other constraints across the site. iii. If the project cannot achieve the standards listed in Standard 6Dii above, the project shall achieve volume reduction to the maximum extent practicable and remove 60% of the annual total phosphorus load leaving all points on the site. Options considered and presented shall examine the merits of relocating project elements to address varying soil conditions and other constraints across the site. iv. Off-site mitigation (including banking or cash or treatment on another project) will be considered by the VBWD on a case-by-case basis. In all cases, the receiving water shall be protected. To meet the NPDES Construction Stormwater Permit the infiltration systems must: Be design so that the water quality volume of one (1) inch of runoff from the new impervious surfaces created by thee project is retained on site (i.e. infiltration or other volume reduction practices) and not discharged to a Surface Water. Discharge the water quality volume routed to the system through the soil surface or filter media within 48 hours or less. Verify soil type and to ensure a minimum of three (3) feet of separation from the seasonally saturated soils (or from bedrock) and the bottom of the proposed infiltration/filtration system. 4. Storm Sewer Design Storm sewer in the City of Lake Elmo must be designed to handle a 10 Year Storm Event. Carmelite Hermitage PE Project #: 119045 Page 6 Date: 04/26/2019 D. Proposed Hydrology One stormwater retention basin with adjacent infiltration area (Basin 100P). The parking lot, the existing buildings and the north portion of the chapel will drain to the north to Basin 100P. The south half of the chapel will drainage to a grass swale the will then discharge to Lake DeMontreville. Rate control and volume control for all new impervious will be provided in Basin 100P by treating the existing impervious surface. Soil borings and double ring infiltration tests reveal soils that are suitable for volume control practices. The test results can be found in Appendix C. 1. Rate Control The City of Lake Elmo requires that proposed flow rate from the proposed development shall not exceed the flow rate of the existing drainage areas for the two, ten and 100-year storm events as well as the 10- day snowmelt event. The following table is a summary of the results of the flow rate derived by the HydroCAD models. Drainage Designation Drainage Description 2-Year Flow Rate (cfs) 10-Year Flow Rate (cfs) 100-Year Flow Rate (cfs) 10-Day Flow Rate (cfs) Existing Proposed Existing Proposed Existing Proposed Existing Proposed W Offsite West 1.73 1.20 9.06 7.83 32.44 30.71 4.64 4.15 Rate control is met for all events per City of Lake Elmo requirements. 2. Water Quality The City of Lake Elmo requires proposals to meet NPDES permit requirements, which states that basins must have a permanent volume of 1,800 cubic feet of storage below the outlet pipe for each acre that drains to the basin. NPDES Basin Treatment Volume Basin Model Name (HydroCAD) Drainage Area (acre) Requirement (cfs/acre) Treatment Volume Req. (ac*ft) Volume Proposed (ac*ft) 100P 10.38 1,800 0.43 0.32 Based on the NPDES Treatment Volume Requirement, this proposed basin does not have enough storage. However, further evaluation using a MIDS model was utilized to evaluate 75% TP reduction. Local climate data for an average year (1958-59) was used to compile the results. Per the MIDS results (found in Appendix B), the TP Reduction Requirement is achieved per City of Lake Elmo requirements. Carmelite Hermitage PE Project #: 119045 Page 7 Date: 04/26/2019 Basin outlets shall be designed such that the water quality volume is discharged at no more than 5.66 cubic feet per second (cfs) per acre of surface area of the pond. The basin’s water quality volume is calculated as 1 inch of runoff from the new impervious surfaces created by the project. Basin Water Quality Volume Discharge Requirement Basin Model Name (HydroCAD) Surface area (acre) WQ Discharge (cfs) Discharge per acre (cfs/acre) 100P 0.14 0.01 0.07 Water quality volume discharge is met for the proposed basin per City of Lake Elmo requirements. 3. Volume Control To meet the NPDES Permit the project must be designed so that the water quality volume of one and one tenth (1.1) inch of runoff from the new impervious surfaces created by the project is retained on site (i.e. infiltration or other volume reduction practices) and not discharged to a Surface Water. Runoff Quantity Reduction Required Basin Name Total New Impervious Area (ac) Treatment Depth (in/ac impervious) Water Quality Volume Required (ac*ft) 100P 0.285 1.1 0.026 Offsite 0.081 1.1 0.008 Total 0.366 1.1 0.034 Total Existing Impervious Area (ac) Total New Impervious Area (ac) 0.726 0.366 Basins 100P will provide volume control with infiltration of 1.1” runoff over the new impervious area. Drainage Designation Drainage Description 2-Year Volume (ac*ft) 10-Year Volume (ac*ft) 100-Year Volume (ac*ft) 10-Day Volume (ac*ft) Existing Proposed Existing Proposed Existing Proposed Existing Proposed W Offsite West 0.37 0.28 1.20 1.10 3.90 3.76 8.50 7.82 The volume control requirement is met for all events per City of Lake Elmo requirements. Carmelite Hermitage PE Project #: 119045 Page 8 Date: 04/26/2019 Infiltration Volume Summary Table Basin Model Name Captured Volume Below Outlet (ac*ft) Impervious Area (ac) Treatment/Impounded Required Volume 1.1” x Impervious Area (ac*ft) Infiltration Surface Area (sf) Infiltration Rate (in/hr) Maximum Volume Infiltrated In 48 Hours (ac*ft) 100P 0.074 0.366* 0.034 4,000 0.2 0.074 *Note 1: This impervious is the total new impervious proposed. New impervious in subcatchment 1A (see Hydrology Map Proposed Conditions) drains offsite and will be treated by a grassy swale. Existing impervious in subcatchments 100A – 100C equal to the new impervious in 1A will be treated by Basin 100P. The maximum volume infiltrated in the required 48 hours exceeds the water quality volume required for the total new impervious area proposed. This meets the City of Lake Elmo volume control requirement. Exterior Perspective FW T0-001 Carmelite Chapel Lake Elmo, Minnesota Scale: © 2018 Duncan G. Stroik Architect, LLC Duncan G. Stroik, Architect 218 W. Washington St., Suite 1200 South Bend, IN 46601 574/232-1783; 574/232-1792 fax Date: Revision: Drawn: Checked: Sheet No.: NA 15 June 2018 CARMELITE CHAPEL Carmelite Hermitage of the Blessed Virgin Mary 8249 de Montreville Trail Lake Elmo, Minnesota 55042-9545 Structural Engineer LKL Engineers contact: Mark R. Kennedy 2735 North Holland-Sylvania Road Suite A-2 Toledo, OH 43615 Phone: 419/578-0195 M.E.P. Engineer Associated Consulting Engineering, Inc. contact: Kelly Loudenslager 340 South Philips Avenue Sioux Falls, South Dakota 57104-6319 Phone: 605/335-3720 Duncan G. Stroik Architect llc 218 west washington street, suite 1200 south bend, indiana 46601 574/232-1783; fax: 574/232-1792 Owner Carmelite Hermitage of the Blessed Virgin Mary contact: REV. John Burns, O.Carm. 8249 Demontreville Trail Lake Elmo, MN 55042 Phone: 651/779-7351 CIVIL Engineer, P.A. PIONEER ENGINEERING contact: Paul Cherne 2422 Enterprise Drive mendota Heights, MN 55120 Phone: 651/681-1914 PHOTO REFERENCE BOARD FW R-1 Carmelite Chapel Lake Elmo, Minnesota Scale: © 2019 Duncan G. Stroik Architect, LLC Duncan G. Stroik, Architect 218 W. Washington St., Suite 1200 South Bend, IN 46601 574/232-1783; 574/232-1792 fax Date: Revision: Drawn: Checked: Sheet No.: NA 10 MAY. 2019 BELDEN BRICK ST. SIMON BLEND GAF SLATELINE SHINGLE ROOF EMERALD GREEN STAINED WOOD DOORS, LIMESTONE SURROUND AND LIMESTONE TYMPANUM PAINTED METAL CLAD WOOD WINDOWS, WITH SILLS AND BRICK ARCHES LIMESTONE CORNICES RUSTIC BUFF LIMESTONE BASE COPPER GUTTERS, FLASHING AND DOWNSPOUTS Interior Perspective FW T0-002 Carmelite Chapel Lake Elmo, Minnesota Scale: © 2019 Duncan G. Stroik Architect, LLC Duncan G. Stroik, Architect 218 W. Washington St., Suite 1200 South Bend, IN 46601 574/232-1783; 574/232-1792 fax Date: Revision: Drawn: Checked: Sheet No.: NA 12 Apr. 2019 Lake Elmo Planning Commission Minutes: 7-11-2022 City of Lake Elmo Planning Commission Meeting City Council Chambers – 3800 Laverne Avenue North Minutes of Regular Meeting of July 11, 2022 CALL TO ORDER: Commission Chair Risner called to order the meeting of the Lake Elmo Planning Commission at 7:00 p.m. COMMISSIONERS PRESENT: Risner, Mueller, Graen, Rehkamp, Vrieze COMMISSIONERS ABSENT: Steil STAFF PRESENT: Planning Director Just & City Planner Hetzel Pledge of Allegiance at 7:00 PM Approve Agenda: M/S/P: Graen / Vrieze made a motion to approve the agenda. Vote: 5-0, motion carried unanimously. (Steil not in attendance). Approve Minutes: M/S/P: Vrieze / Rehkamp made a motion to approve 6-13-22 minutes. Vote: 5-0, motion carried unanimously. (Steil not in attendance) M/S/P: Risner / Rehkamp made a motion to approve 6-27-22 minutes. Vote: 5-0, motion carried unanimously. (Steil not in attendance) Public Hearings: 1. CONIDTIONAL USE PERMIT FOR CHAPEL– 8249 Demontreville Trail Carmelite Hermitage of the Blessed Virgin Mary Director Just gave presentations and answered questions. Carmelite Hermitage of the Blessed Virgin Mary (Applicant) has applied for a Conditional Use Permit (CUP) for construction of a chapel on the property located at 8249 Demontreville Trail N (PID# 09.029.21.12.0002). The proposed 5,778 square foot chapel and a detached 978 square foot bathroom and mechanical room would be for use by members and outside visitors. The use is allowed by CUP in the Public Facilities (PF) zoning district. RECOMMENDED FINDINGS Conditional use means a land use or development as defined by ordinance that would not be appropriate generally but may be allowed with appropriate restrictions as provided by official controls only upon a finding that all of the following provisions are met. Staff recommends the following findings: Lake Elmo Planning Commission Minutes: 7-11-2022 1. The proposed use will not be detrimental to or endanger the public health, safety, comfort, convenience or general welfare of the neighborhood or the city. The proposed use should not be detrimental or in any way endanger the public health, safety, comfort. 2. The use or development conforms to the City of Lake Elmo Comprehensive Plan. The proposed use conforms to the Comprehensive Plan. 3. The use or development is compatible with the existing neighborhood. The proposed use is permitted in Public Facilities zoning district subject to a CUP. 4. The proposed use meets all specific development standards for such use listed in the Zoning Code. The proposed use must meet the provisions of Article XVI – Public and Semi-Public Districts. 5. If the proposed use is in a flood plain management or shoreland area, the proposed use meets all the specific standards for such use listed in Article XIX (Shoreland Management) and Title 100 (Flood Plain Management). The proposed use must meet the Shoreland Regulations. 6. The proposed use will be designed, constructed, operated and maintained so as to be compatible in appearance with the existing or intended character of the general vicinity and will not change the essential character of that area. The proposed use will be compatible in appearance with the existing character of the general vicinity and will not change the essential character of the area. 7. The proposed use will not be hazardous or create a nuisance as defined under this Chapter to existing or future neighboring structures. The proposed chapel is to be set back form the public right of way and from adjacent land owners and so should not create a nuisance to existing or future neighboring structures. 8. The proposed use will be served adequately by essential public facilities and services, including streets, police and fire protection, drainage structures, refuse disposal, water and sewer systems and schools or will be served adequately by such facilities and services provided by the persons or agencies responsible for the establishment of the proposed use. The proposed chapel will be adequately served by public services or facilities. 9. The proposed use will not create excessive additional requirements at public cost for public facilities and services and will not be detrimental to the economic welfare of the community. The proposed use will not create excessive additional requirements at public cost. 10. The proposed use will not involve uses, activities, processes, materials, equipment and conditions of operation that will be detrimental to any persons, property or the general welfare because of excessive production of traffic, noise, smoke, fumes, glare or odors. The proposed use should not be detrimental to persons, property, or the general public welfare. 11. Vehicular approaches to the property, where present, will not create traffic congestion or interfere with traffic on surrounding public thoroughfares. With the new direct access (Res. 2021-092) the proposed use should not create traffic congestion. The chapel will mainly be used by members and intermittent guests. 12. The proposed use will not result in the destruction, loss or damage of a natural or scenic feature of major importance. The proposed use should not impact natural or scenic features. Applicant Reverend John Burns (8249 Mound Carmel Road) spoke regarding the project offered to answer questions. Lake Elmo Planning Commission Minutes: 7-11-2022 Public hearing opened at 7:15 PM. Father Patrick McCorkell (8243 Demontreville Trail) asked for clarification of how much traffic and activity will be generated by the new chapel, compared to the existing chapel. An email in support was received. Public hearing closed at 7:18 PM. M/S/P: Risner / Mueller made a motion to recommend approval of a Conditional Use Permit (CUP) for the construction of a chapel with the listed conditions based on the findings listed in the staff report as well as additional conditional approval defining business hours of 7 AM and 5 PM except where hours may be extended for all defined Holidays and Feasts. Vote: 5-0, motion carried unanimously. (Steil not in attendance) Meeting adjourned at 7:26 PM. Respectfully submitted, Diane Wendt Permit Technician