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HomeMy WebLinkAbout03/07/2018• • • •••• ••••• •••• •••® Apple.. Meeting Location: Municipal Center 7100 147th Street West Apple Valley, Minnesota 55124 March 7, 2018 PLANNING COMMISSION TENTATIVE AGENDA ANNUAL BUSINESS MEETING 7:00 PM 1. Call to Order 2. Approve Agenda 3. Approve Consent Agenda Items Consent Agenda Items are considered routine and will be enacted with a single motion, without discussion, unless a commissioner or citizen requests to have any item separately considered. It will then be moved to the land use/action items for consideration. A. Approve Minutes of February 21, 2018, Regular Meeting 4. Annual Business Meeting A. Nominate and Approve Officers B. Approve 2017 Planning Commission Annual Report 5. Public Hearings 6. Land Use / Action Items 7. Other Business A. 2040 Comprehensive Plan Update: Review of Water Supply and Wastewater Sections of the Plan B. Review of Upcoming Schedule and Other Updates Next Planning Commission Meeting - Wednesday, March 21, 2018 - 7:00 p .111, Next City Council Meeting - Thursday, March 8, 2018 - 7:00 p.m. 8. Adjourn Regular meetings are broadcast, live, on Charter Communications Cable Channel 180 and on the City's website at www. cityofapplevalley. org • • • •••• ••••• •••• • • • Apple11 ITEM: PLANNING COMMISSION MEETING DATE: SECTION: 3.A. March 7, 2018 Consent Agenda Description: Approve Minutes of February 21, 2018, Regular Meeting Staff Contact: Joan Murphy, Department Assistant Department / Division: Community Development Department ACTION REQUESTED: Approve minutes of regular meeting of February 21, 2018. SUMMARY: The minutes of the last regular Planning Commission meeting are attached for your review and approval. BACKGROUND: State statute requires the creation and preservation of meeting minutes which document the official actions and proceedings of public governing bodies. BUDGET IMPACT: N/A ATTACHM ENTS: Minutes CITY OF APPLE VALLEY PLANNING COMMISSION MINUTES FEBRUARY 21, 2018 1. CALL TO ORDER The City of Apple Valley Planning Commission meeting was called to order by Chair Melander at 7:00 p.m. Members Present: Tom Melander, Ken Alwin, Paul Scanlan and David Schindler. Members Absent: Tim Burke, Keith Diekmann and Jodi Kurtz. Staff Present: City Attorney Sharon Hills, City Engineer Brandon Anderson, Community Development Director Bruce Nordquist, City Planner Tom Lovelace, Planner Kathy Bodmer and Department Assistant Joan Murphy. 2. APPROVAL OF AGENDA Chair Melander asked if there were any changes to the agenda. . . . MOTION: Commissioner Alwin moved, seconded by Commissioner Scanlan, approving moving item 5A — Quarry Ponds Fifth and Sixth Additions rezoning and subdivision to the consent agenda. Ayes - 4 - Nays - 0. MOTION: Commissioner Scanlan moved, seconded by Commissioner Schindler, approving the agenda as amended. Ayes - 4 - Nays - 0. 3. CONSENT ITEMS MOTION: Commissioner Scanlan moved, seconded by Commissioner Schindler, approving the minutes of the meeting of February 7, 2018. Ayes - 4 - Nays - 0. MOTION: Commissioner Scanlan moved, seconded by Commissioner Schindler, recommending approval of a variance reducing the house -side setback from 10' to 5' (5' variance) for 466 sq. ft. workshop addition and a variance reducing the front yard setback from 30' to 20' (10' variance) for existing home placement for Christian Workshop Addition at 13415 Gunflint Ct. with conditions. Ayes - 4 - Nays - 0. MOTION: Commissioner Scanlan moved, seconded by Commissioner Schindler, recommending approval of Quarry Ponds Fifth and Sixth Additions rezoning from "SG" (Sand and Gravel) to "PD-975/zone 1" Planned Development and subdivision of 15.22 acres into 42 single-family residential lots in. Ayes - 4 - Nays - 0. 4. PUBLIC HEARINGS CITY OF APPLE VALLEY Dakota County, Minnesota Planning Commission Minutes February 21, 2018 Page 2 of 8 A. Springs at Cobblestone Lake — PC18-O1-PZB Chair Melander opened the public hearing at 7:02 p.m. City Planner Tom Lovelace stated Continental 432 Fund, LLC is requesting approval of the following: 1. Rezoning of Outlot M, Cobblestone Lake Commercial 3rd Addition from Planned Development No. 703/zone 8 to Planned Development No.703/zone 6. 2. Rezoning of Outlot L, Cobblestone Lake Commercial 3rd Addition from Planned Development No. 703/zone 7 to Planned Development No.703/zone 6. 3. Amendments to Planned Development No. 703 to allow apartments as a permitted use in zone 6 and establish area requirements and design standards in zone 6. 4. Preliminary plat that will combine Outlots L and M, Cobblestone Lake Commercial 3rd Addition into one lot. 5. Site plan/building permit authorization to allow for thirteen apartment buildings, one clubhouse, and eleven detached garage buildings. The site is one of the last parcels to be developed in Cobblestone Lake, a 320 -acre mixed-use development. The site is adjacent to the 193 -unit Orchard Path continuum of care facility, Cobblestone Manor (a 60 -unit Dakota County Community Development Agency senior apartment building), Cobblestone Lake Medical Center, and a leg of the North Creek Greenway to the north; single family residential to the east, the Spirit of Brandtjen Farms mixed-use development to the south, and an Apple Valley water reservoir to the west. The applicant is proposing to construct 13 two-story apartment buildings, 11 detached garage buildings, and a 4,400 -sq. ft. clubhouse facility. Ten buildings will have 16 units per building and the remaining three will have 12 units per building. The site is currently platted as two outlots, (Outlots L and M, Cobblestone Lake Commercial 3rd Addition). They are currently guided "HD" (High Density Residential/6-12 units per acre). The proposed project is generally consistent with the Comprehensive Plan designation. The proposed multi -family development will provide 196 market -rate apartments. This development proposal will address the City's Livable Communities Act (LCA) principles of adding a housing product that helps provide a balanced supply and variety of housing types for people of all income levels and lifecycle stages. It was initially thought to incorporate the subject property into zone 6, which currently allows for a variety of commercial/office/retail uses, as well as senior apartments and continuum of care facilities. Staff believes that creating a new zone that would list apartments as a permitted use would be better. Staff is recommending that the property be rezoned to zone 5, and permitted, conditional and accessory uses be established, as well as area requirements and special performance standards consistent with high-density residential development. CITY OF APPLE VALLEY Dakota County, Minnesota Planning Commission Minutes February 21, 2018 Page 3 of 8 In an effort to meet the minimum parking requirement, the applicant has identified 34 on -street parking spaces along Cobblestone Lake Parkway and Elmhurst Lane into their parking equation. Parking on a public street cannot be used to meet the minimum parking requirements. Access to the development will be via one driveway located along the west side of Elmhurst Lane, and a second along Cobblestone Lake Parkway. The site will be completely fenced and the access drives will be secured. Residents will only have access to the Elmhurst Lane gate, with the other driveway accessible by emergency personnel only. He said staff has concern with development having only one access to and from the site for the general public and residents. The proposed development will generate approximately 1,300 vehicle trips per day. A traffic study showing trip distribution to and from the site and potential impacts to the surrounding intersections maybe required. He reviewed the building setbacks, the fencing around the perimeter of the site and the retaining wall, grading and landscaping plans, pedestrian access and building exterior materials. He said the applicant is proposing to add signage to the existing monument sign located at the corner of 160th Street West and Pilot Knob Road. The signage will spell out Apple Valley and will act as a gateway feature into the city. Chair Melander asked how short they are on parking spaces. Mr. Lovelace replied about 50 spaces. Commissioner Scanlan asked if there could be a lighting plan presented in addition to the plan of access for emergency vehicles. He expressed concern for the basins right along Cobblestone Lake Pkwy and asked how those were going to be blended in with the landscape and the existing area that is already established. He wondered if underground would be a better solution. Mr. Lovelace said they could take a look at that. Commissioner Scanlan continued that there could be a maintenance component to retain that look and feel. He had concerns for the building lines and construction and that the continuous ridgelines have no breaks and thought it could fit into the neighborhood better if there were breaks. Commissioner Alwin said he would like to see how the retaining wall fits into that southwest corner of the site. Chair Melander commented there are a large number of issues with this development. Gwyn Wheeler, Continental Properties, provided an overview of the proposed development. She agreed that this is a tight site and they will try to maintain as much green space on the site as possible. To address the parking concerns, they plan to ask for a reduction from the City code for parking ratio. CITY OF APPLE VALLEY Dakota County, Minnesota Planning Commission Minutes February 21, 2018 Page 4 of 8 Vernon Swing, President and CEO of Swing Traffic Solutions (STS) from Plymouth, Minnesota, provided statistics on parking ratios and the demand on parking per units over the years. He added that there are other modes of transportation such as Uber, Lyft and bus service that some people depend on. Commissioner Alwin asked if there would be a pedestrian gate on the north as an access point for other modes of transportation. Ms. Wheeler answered that there would be pedestrian gates provided for access. Commissioner Scanlan commented that there are a large number of people leaving Apple Valley to drive to work every day. He said he still sees the need fora 2 car family and had concern for reducing the parking ratio. Ms. Wheeler answered there is 2.09 cars per unit and that can be accommodated on site. That includes the club house parking. Chair Melander commented that it has been his experience that when the parking is tight it is a challenge. Commissioner Scanlan said there is a space concern and there can be additional challenges during the winter months. Ms. Wheeler continued they would be proposing green chain link fencing, a greenway and elevations with masonry. Signage is important for visibility and they would be asking for signage on Pilot Knob Road. They have been working with staff. She referenced the gateway feature or public art feature and said they are open to suggestions. She said there would be screening along the greenway. Commissioner Alwin asked if they could provide renderings with the landscaping along the greenway. Commissioner Scanlan asked what kind of sustainability this project offers. Ms. Wheeler answered that they are trying to keep impervious surface to a minimum to be able to accommodate storm water management. They use high quality and sustainable materials on their buildings in order to have low maintenance and a long life. They use energy efficient appliances in their units. They are using all granite countertops that should have a longer life replacement. They use durable finishes on the interior that hold up and that can reduce their repair costs. Commissioner Scanlan commented that as far as the signage goes the City has been pretty consistent that there be a single sign and it should be adhered to. He said the chain link is not a permitted material on residential side. CITY OF APPLE VALLEY Dakota County, Minnesota Planning Commission Minutes February 21, 2018 Page 5 of 8 Commissioner Schindler said he prefers all one type of fencing oil the north side which is the greenway. He would like to see the nice fencing along the greenway but would be comfortable with chain link on the west and south sides. Commissioner Scanlan asked if they had a color palette that they are looking at for the community. Ms. Wheeler answered that they would be using stronger earth tone color such as browns, grays and oranges. They did hear from the neighbors that they wanted a little bit more vibrant colors with the mixes of the reds, yellows and blues. She added that they are trying to be sensitive to that. They would do stone contrary to the brick that was added to the previous project. They feel stone works better in the Cobblestone area. Commissioner Scanlan commented that should be a question for Tradition and that he had always understood that the greys and the beiges were not preferred and the whole direction in Cobblestone has always been the vibrant color palette. Ms. Wheeler stated that Traditional has approved the elevations at this point. Commissioner Scanlan said he still has a question on that. Chair Melander was troubled with the variance and that this is the first thing you see coming into Apple Valley. He commented Cobblestone is an upscale development and this has to be a statement in keeping with the rest of Cobblestone. Chair Melander closed the public hearing at 8:14 p.m. 5. LAND USE/ACTION ITEMS -NONE - 6. OTHER BUSINESS A. Ryan Real Estate Redevelopment Sketch Plan Community Development Director Bruce Nordquist said no official action is required. The owner wishes to introduce the project and receive feedback from the Planning Commission prior to submitting a formal land use application. It is recommended that the Planning Commission not state specifically whether or not they would approve or deny the request, but rather, identify the specific zoning questions or issues they might have with the proposed project. Launch Properties and Ryan Real Estate request consideration of two sketch plans for the redevelopment of the Ryan Real Estate building at 14750 Cedar Ave (Lot 1, Block 2 Apple Valley Commercial Addition). The proposed development would involve the demolition of the existing multiple -tenant office building and construction of the following: CITY OF APPLE VALLEY Dakota County, Minnesota Planning Commission Minutes February 21, 2018 Page 6 of 8 Concept 1 - One 11,000 sf building. The proposed multiple tenant retail building would be comprised of a 4,000 sf restaurant, 4,900 sf retail, and 2,100 sf shop coffee with drive-thru lane. The building is proposed to be situated in a north -south alignment parallel with Cedar Ave. The existing driveway at 147th Street W. would be closed and a right -in access and full access would be available on the east side of the site from Glazier Ave. The parking appears to comply with the Zone Code requirements, but would need to be verified at the time of building permit once the number of seats is known. Amendments to PD -290 include allowing a Class III restaurant, allowing a drive-thru lane in connection with a Class III restaurant as a CUP, allowing reduced parking setbacks and allowing retail uses. The front of the building is proposed to face east which means the back of the building will be visible from Cedar Avenue. The architecture of the building will be of concern to ensure 4 -sided architecture is provided and to ensure that the Cedar Ave elevation does not appear to be a "back -of -building." The drive-thru lane extends from the north end of the building along the west side of the building between the building and Cedar Avenue. While the lane provides adequate stacking space for queuing vehicles, it appears to be a single lane with no escape or pass -by lane. It also appears that all deliveries would have to be done from the front of the building. Concept 2 - Two buildings totaling 9,000 sf. A 4,800 sf free-standing restaurant and 4,200 sf free- standing restaurant are proposed. Both restaurants would be served by a drive-thru lane. The direct drive access at 147th Street would be closed and a right -in only access and full -access would be available on the east side of the site from Glazier Ave. Amendments to PD -290 include allowing drive-thru in connection with a Class I or Class III restaurant facility as CUP and allowing reduced parking setbacks. The proposed site plan shows the buildings set back on the site with parking and the drive-thru lanes between the buildings and Cedar Ave. The City has been encouraging developers to place the buildings as close to Cedar Ave as possible to ensure easy pedestrian access. The two -building layout allows for more flexibility in building orientation and placement. Subdivision of the property would be needed for the two buildings. He stated the site is part of Planned Development No. 290 (PD -290) which provides for an integrated mix of limited business and certain retail uses that support limited business. The property is zoned PD -290, Zone 1 which allows limited business uses including professional offices, banks, hospital and nursing homes. Class I restaurants, either Class I Traditional or Class I Casual, are permitted in the zoning district. The petitioners state that they are interested in a restaurant concept that includes a Class I Casual type of restaurant that also has a drive-thru lane. "Fast casual" restaurants with freshly prepared food that also include drive-thru service is very popular right now. The difficulty will be distinguishing "fast casual" restaurants from the more typical "fast food" restaurants. The restaurant industry continues to evolve and current trends and definitions that distinguish full service, casual, fast-food and fast casual restaurant concepts will need to be reviewed and discussed in more detail. CITY OF APPLE VALLEY Dakota County, Minnesota Planning Commission Minutes February 21, 2018 Page 7 of 8 Dan Regan, Launch Properties, introduced his team and provided addition information related to the 2 concepts. He said time is becoming very valuable and eating habits are changing today because people are busier. People are looking for something more convenient and a different offering than what is given at a class I restaurant. Commissioner Alwin said conceptually the 2 building concept was more aesthetically pleasing because the 2 buildings reduces the scale. Commissioner Scanlan agreed that the 2 building design is more appealing rather than a multi - tenant building that has a strip mall appeal to it. He added site has challenges that include traffic flow. Commissioner Schindler commented he is comfortable with the types of uses no matter what goes in that corner. He also agreed that traffic flow is a concern. He said adding more traffic does not excite him. He said that it is hard to foresee what the demand will be for a drive-thru in 15 years. He sees the big box areas and there are so many extra parking spaces outside of the Christmas rush. He feels we have become over parked and in the areas where the activity is we are under parked. Commissioner Alwin added he knows the Ryan building was there first. He said this is a tough corner and the area was built up around the Ryan building. Chair Melander commented this is an undeveloped location and the site was a real wrestling match with the Portillo's proposal. He understands the increasing demand to get something from your car. He said there is a difference in traffic volumes with restaurants and does not think this is a good site for a McDonalds or Portillo's kind of traffic to make it work. He thanked Mr. Regan for coming in and said the City wants to work with him and added the City does not want to be obstructionists. He said we need to look at the whole picture and look at precedence. B. 2040 Comprehensive Plan Update: Planning for an Equitable City, Review of Draft Surface Water and Parks Planning Community Development Director Bruce Nordquist launched the discussion about planning for an equitable city. Casey Silver, the Food Access & Equity Manager for The Open Door, provided a history of The Open Door. She presented opportunities to promote healthy eating and food equity within the comprehensive plan, using the Minnesota Food Charter and Food Access Planning Guide as resources. Natural Resources Coordinator Jessica Schaum, introduced the Surface Water Management Plan, and presenters Greg Williams and Karen Chandler, Barr Engineering, gave an overview of the Plan. Terry Minarik, Principal Landscape Architect, and Emily Neuenschwander, both from Confluence, introduced the Parks and Recreation Master Plan for the 2040 Comprehensive Plan for discussion. CITY OF APPLE VALLEY Dakota County, Minnesota Planning Commission Minutes February 21, 2018 Page 8 of 8 C. Review of upcoming schedule and other updates. Community Development Director Bruce Nordquist stated that the next regular Planning Commission meeting would take place Wednesday, March 7, 2018, at 7:00 p.m. 7. ADJOURNMENT Hearing no further comments from the Planning Staff or Planning Commission, Chair Melander asked for a motion to adjourn. MOTION: Commissioner Alwin moved, seconded by Commissioner Scanlan to adjourn the meeting at 10:05 p.m. Ayes - 4 - Nays - 0. Respectfully Submitted, /s/ Joan Murphy Joan Murphy, Planning Department Assistant Approved by the Apple Valley Planning Commission on Tom Melander, Chair • • • •••• ••••• •••• • • • Apple11 ITEM: PLANNING COMMISSION MEETING DATE: SECTION: 4.A. March 7, 2018 Annual Business Description: Nominate and Approve Officers Staff Contact: Joan Murphy, Department Assistant ACTION REQUESTED: Nominate and elect the following officer positions: 1. Chair 2. Vice -Chair 3. Secretary Department / Division: Community Development Department SUMMARY: In accordance with City Code, the Planning Commission provides for an annual business meeting, to be held following the City Council meeting at which new appointments to the Commission are made. At the City Council meeting of February 22, 2018, existing members Alwin and Melander were reappointed fora 3 year term. The purpose of the annual business meeting is to elect officers for the year and approve the annual report from the previous year. BACKGROUND: N/A BUDGET IMPACT: N/A • • • •••• ••••• •••• • • • Apple11 ITEM: PLANNING COMMISSION MEETING DATE: SECTION: 4.B. March 7, 2018 Annual Business Description: Approve 2017 Planning Commission Annual Report Staff Contact: Joan Murphy, Department Assistant ACTION REQUESTED: Approve 2017 Planning Commission Annual Report Department / Division: Community Development Department SUMMARY: The Community Development Department is responsible for the work of the Planning Commission. City ordinance requires that a report of Commission be provided annually representing the work during the preceding year, 2017. BACKGROUND: N/A BUDGET IMPACT: N/A ATTACHMENTS: Report APPLE VALLEY Planning Commission O 00 O 000 00000 O 000 O 00 Apple Valley 2017 ANNUAL REPORT Planning Commission The role of the Planning Commission is to make recommendations to the City Council on a variety of land use requests and issues. In 2017, there were 21 Planning Commission meetings held that consisted of public hearings, land use applications and sketch plans. Members of the Apple Valley Planning Commission included: • Tom Melander, Chair • Tim Burke, Vice -Chair • David Schindler, Secretary • Ken Alwin • Keith Diekmann • Jodi Kurtz • Paul Scanlan Land Use Development In 2017, there were 45 land use development applications. Land use development applications may consist of multiple actions that must be reviewed and analyzed by staff, then presented to the Planning Commission and City Council for their consideration and action. A total of 21 Planning Commission agendas, agenda packets, and minutes were prepared and distributed, as well as 17 public hearings held: Land Use Actions Requested in ; 2017 Comprehensive Plan Amendments 1 Zoning Ordinance Amendments/Rezonings 7 Conditional Use Permits 1 Subdivision/Preliminary Plats/Final Plats 13 Site Plan Reviews/Building Permit Authorizations 9 Vacations 2 Variances 9 Environmental Reviews 0 Interim Use Permits 2 Miscellaneous 12 TOTAL 56 Performance and activity never tells the whole story. The complexity of land use requests has often involved comprehensive plan revisions, rezonings, zoning amendments, and site plan/building permit authorizations on property located in established neighborhoods. Changes in fully developed area of the City often require additional meetings for the complete review. Building permit project valuation doubled in 2017 from 2016. In 2016, the valuation was $95,352,609. In 2017, the valuation was $202,481,522. Commercial Projects Cobblestreet Market Approval was granted for a preliminary plat of an outlot that created two lots, zoning amendments to allow for a drive -up window in conjunction with a restaurant, and site plan/building permit authorization to allow for construction of 8,148 -sq. ft. multi -tenant retail building on a 1.26 -acre lot at the southwest corner of 157th Street West and Cobblestone Lake Parkway. Foliage Medical Office Building The City approved a site plan building permit authorization request to allow for construction of an 18,375 -sq. ft. medical office building on a 5.47 -acre lot located at 15160 Foliage Avenue. The building was completed in 2017. TCF Bank at Mount Olivet Mount Olivet Church split off a 16,600 sq. ft. parcel on the southwest corner of 142nd St W. and Cedar Ave for construction of a 2,400 TCF bank with drive-thru lanes. Construction of the bank at 7530 — 142nd St. W. was completed early in 2017. Valley Oaks Dental Dr. Wichmann relocated his dental practice from 147th and Glazier Ave to a new building on the southeast corner of Granada Drive and 146th Street. Construction of the 4,300 -sq. ft. dental office was completed in 2017. The nice development has prompted improved property maintenance in the neighborhood. Cobblestone Lake Medical Center The City approved the subdivision of an existing 1.97 -acre lot at 15875 Emperor Avenue into two lots and gave authorization to allow for construction of a 10,000 -sq. ft. medical office building on a 1.45 -acre lot. Late in 2017, tenants started to occupy the space. Ryan Real Estate Redevelopment In 2017, the Planning Commission conducted a public hearing and reviewed plans for a proposed 9,000 sq. ft. Portillo's restaurant with two drive-thru lanes on the southeast corner of Cedar Ave and 147th Street W. One of the significant issues identified was potential degradation of area intersections as a result of expected increased traffic levels. The City Engineer designed a traffic solution that will address the expected impacts. Portillo's withdrew its application deciding that the site was not suitable for them. Road improvements continue to be planned. Paul's 76 Redevelopment Project A redevelopment proposal was submitted and approved in 2015 that included the removal of the existing motor fuel/car wash/convenience store operation and construction of a new multi -tenant retail building on the .92 -acre site located at 7525 147th Street West. In late 2016, a revised plan was submitted that included drive-through window service for a proposed coffee shop. The revised plans were approved in early 2017, and construction of a new 4,794 sq. ft. building was completed in the fall of 2017. This is a good example of the complexity and time required for small lot redevelopment. Industrial Projects Uponor Expansion The final approvals for Uponor's expansion were approved in early 2017, allowing the company to break ground on a 58,000 sq. ft. expansion along Energy Way. Construction of a turn lane and the final occupancy of the building will occur in early 2018. Wasatch Storage Approval of a preliminary plat and site plan/building permit authorization was granted for an 804 unit self -storage facility at the north east corner of Johnny Cake Ridge Road and 147th St. The final plat and developer's agreement are expected to be reviewed by City Council in early 2018, with the groundbreaking to follow in late spring. Residential Projects Embry Place Third Addition Approval was granted for the 34 -lot final phase of the Embry Place single-family residential development located in the southeast corner of Pilot Knob Road and County Road 42. Legends at Apple Valley (Formerly Valley Bluffs Senior) Construction began in 2017 of the 163 -unit affordable senior apartment building located at 14050 Granite Ave on the southwest corner of Cedar Ave and 140th St. W. Unit leasing and project completion is expected in early 2018. Marketing emphasis is occurring in Apple Valley. Orchard Path at Cobblestone Lake After receiving approval in 2016, Presbyterian Homes broke ground in the fall of that year on a 195 -unit continuum of care facility on a 12 -acre lot located at the corner of 157th Street West and Cobblestone Lake Parkway. Construction proceeded throughout 2017. The development is expected to be open in early 2018. Remington Cove Apartments -Phase Two Late last year saw the completion of the second three-story apartment building on 2.66 acres located at the southeast corner of Founders Lane and Galaxie Avenue. Leasing of the new 95 units is currently underway. Galante Apartments Construction of the 134 -unit market rate Parkside Galante apartments adjacent to Galaxie Avenue began in 2017. Leasing is expected to begin during the summer of 2018. Delegard Apple Villa Apartments Construction began in the fall of 2017 of the Apple Villa Apartment addition site on the southeast corner of Whitney Drive and Pennock Lane. The project will add 28 new units to the current 48 - unit complex. In conjunction with the project, the owners updated the existing buildings to match the new construction and agreed to make significant storm sewer improvements to the site, which currently drains directly into Keller Lake. Bigos Kelley Park Phase 3 Bigos moved forward with Phase 3 of the apartment development project on the two parcels south of Kelley Park flanking Fresco Terrace. The 2017 approved project includes a 4 -story, 61 -unit building on Block 9 west of Fresco Terrace and a 3- and 4 -story, 114 -unit building east of Fresco Terrace. Block 10 will have an outdoor pool, patio and barbeque area that will be shared with both buildings. Both buildings will have rooftop decks that will be able to enjoy the view of Kelley Park. Final plat and development agreement are expected to be completed in early 2018 to allow for construction to begin on Block 10 in 2018. Variance, Interim Use Permits The number of variances and interim use permits reviewed in 2017, is consistent with other years. Many of the applications accentuate the City's goal to be a "Community for a Lifetime" and offer "universal design" features. Most of the variances approved in 2017 allowed homeowners to further invest in their properties by adding bedrooms, kitchens, and other expansions. An Interim Use Permit allowed a family to continue living in their home by constructing a driveway needed for medical care access. Institutional Projects ISD 196 Improvement Projects In 2015, voters approved a bond referendum to improve the safety and security of Independent School District (ISD) 196 buildings throughout the District. The projects modified all of the school entrances to better control and identify all visitors, and improved site safety by modifying student drop-off/pick-up areas for buses and parents. During the 2017 review of the projects, City staff discovered that many of the ISD 196 properties had never been platted. As a result, in 2017, the Planning Commission and City Council reviewed either Site Plan/Building Permits or Final Plats or both for Valley Middle School/Southview Elementary, Highland Elementary/Scott Highlands Middle School, Cedar Park Elementary, Diamond Path Elementary, Apple Valley High School and Greenleaf Elementary. Secure entryway projects were considered minor improvements and proceeded straight to building permit for the balance of the ISD 196 schools in the City. Christ Church Monopole An 87 -foot tall wireless communication monopole was approved on the Christ Church property at 12929 Johnny Cake Ridge Road in 2016. The building permit was issued in the summer of 2017 and the infrastructure is currently under construction. Zoning Code Amendments Planned Development No 679 In 2017, the City Council passed amendments to the planned development ordinance to allow for alcohol sales in conjunction with a restaurant, which will provide Apple Valley's AMC Classic Movie Theater the ability to compete with surrounding theaters by offering food and liquor sales to it patrons. Other 2040 Comprehensive Plan Update Staff continues to work on the 2040 Comprehensive Plan Update, which will need to be completed by December 31, 2018. Consultants were hired to assist with the preparation of documents. In late 2017, the Planning Commission began review of the draft chapters of the plan and is expected to complete the review of all the chapters by end of April, 2018. A public hearing at the City Council will be held in May and staff will distribute a draft copy of the Plan to the Met Council and neighboring jurisdictions in June with a goal to have an approved Plan published by the end of the year. There were three special meetings held: March 30, 2017 November 15, 2017 November 29, 2017 Sketch Plan Reviews Held Hope Church/PPL Sketch Plan — Consider Sketch plan review of proposed comprehensive plan amendment from "INS" (Institutional) to "HD" (High density residential, 12+ units/acre), rezoning from "P" (Institutional) to "M-7" (Multiple family residential, 12 to 20 units/acre), subdivision by preliminary plat to create two lots and site plan review/building permit authorization of a 50 -unit 3 -story apartment building located on the southeast corner of 145th Street West and Glazier Avenue at 7477 145th Street West. Ryan Real Estate/Launch Properties Redevelopment —Consider Sketch plan review of zoning amendments and site plan review/building permit authorization of two redevelopment proposals for the Ryan Real Estate building at 14750 Cedar Ave. Concept 1 includes an 11,500 sq. ft. multi -tenant retail building with Class 1 or Class 111 restaurant with drive-thru. Concept 2 is a 9,000 sq. ft. single occupant restaurant (Class 1 or Class 111) with drive-thru window service. Cedar Brook Market 12503 Germane Ave Sketch Plan Review — Consider Sketch plan review for Proposed Comprehensive Plan amendment, rezoning, and preliminary plat for the subdivision of the Cedar Brook Market site to construct a single family home on the open space on the southern side of the lot. • • • •••• ••••• •••• • • • Apple11 ITEM: PLANNING COMMISSION MEETING DATE: SECTION: 7.A. March 7, 2018 Other Business Description: 2040 Comprehensive Plan Update: Review of Water Supply and Wastewater Sections of the Plan Staff Contact: Thomas Lovelace, City Planner Department / Division: Community Development Department Applicant: City of Apple Valley Applicant Date: 60 Days: Project Number: PCI 7-06-P 120 Days: ACTION REQUESTED: This agenda item is for discussion only. No action is requested. Staff is looking for any input the Commissioners may have regarding the content of the information being presented. SUM MARY: Attached for review and comment are the draft wastewater and water supply sections of the Utilities chapter of the 2040 Comprehensive Plan Update. The Metropolitan Council requires that each community include wastewater and water supply plan elements to their comprehensive plan. Apple Dalley is served by the Met Council's regional system; therefore, the update needs to provide a comprehensive sewer plan describing service needs from the regional system. The wastewater plan must be designed to support the population, household, and employment forecasts as described in in the city's System Statement. The update should also plan and provide for the appropriate local system capacity and address inflow and infiltration (UI), which is described as clear water that enters wastewater systems, consumes capacity, and increases demand at a wastewater treatment plant. These excessive flows can result in public and environmental health concerns if untreated sewage discharges to basements, rivers, lakes, or other public areas. Included in the wastewater plan shall be the following components: • Description of the existing sanitary sewer system • A table or tables that detail the households and employment forecasts in 10 -year increments through 2040, based on the Met Council's forecasts and any subsequent negotiated modifications • Mapping that shows the existing system's lift stations and connection points to the metropolitan system and existing on-site wastewater disposal systems • Information on intercommunity flow agreements with adjoin communities, including a map of areas covered by the agreements • Tables that contain the capacity and design flows for existing trunk sewers and lift stations, and an assignment of 2040 growth forecasts by Metropolitan interceptor facility • Our community goals, plans, and strategies for preventing and reducing excessive inflow and infiltration (UI) in the local system • Describe the extent, source, and significance of existing UI problems in the community • Analyze the costs for remediating the UI issues in the community • An implementation plan that contains a program strategy, priorities, scheduling and financing mechanism for eliminating and preventing excessive UI from entering the sanitary sewer system Also, all communities like Apple Dalley that have a public water supply system in the Twin Cities metropolitan area are required to prepare a water supply plan as part of their local comprehensive plan. That plan should include the following elements: • Water demand projections through 2040 • Potential water supply issues • Proposed alternative approaches to meet extended water demand projections • Value-added water supply planning efforts • Source water protection Nancy Ziegler with AE2S (Advanced Engineering and Environmental Services), the consultant retained by the City to update the wastewater and water supply plans, will make a presentation to the Planning Commission on the night of the meeting. BACKGROUND: N/A BUDGET IMPACT: N/A ATTACHMENTS: Background Material Background Material Sanitary Sewer Introduction The Metropolitan Council of Environmental Services (MCES) requires that the City submit a Sanitary Sewer Plan as part of the 2040 comprehensive plan update. The comprehensive plan is updated every ten years. The wastewater plan is reviewed to ensure conformance with the 2040 Water Resources Policy Plan and Thrive MSP 2040 to ensure that the Metropolitan Council's regional wastewater system has adequate capacity to serve the future needs of the region in the right locations at the right times. Conformance for wastewater means that, within the Metropolitan Urban Service Area, communities are meeting the overall density expectations identified in Thrive MSP 2040. Apple Valley has prepared this section of the Comprehensive Plan to demonstrate its conformance to the regional plan. This section of the Utilities chapter summarizes Apple Valley's Comprehensive Sanitary Sewer Plan and provides the specific information needed to meet the 2040 requirements. The Comprehensive Sanitary Sewer Plan serves as an inventory of the City's sanitary trunk facilities and a guide for completing the few remaining trunk sections. Existing Sanitary Sewer System Gener- A review of the City's existing sanitary sewer collection system will provide insight into its ability to convey domestic, commercial and industrial wastewater to the wastewater treatment facility. The existing trunk sewer system is mostly complete with the exception of approximately 500 acres within the southeastern part of the City. This area will be developed as the current sand and gravel mining operations cease. The existing collection system was evaluated for its ability to serve this area as well as remaining undeveloped parcels. Trurk Sewer System, Mr iterceptor- wrcommunit, connections The City's trunk sanitary sewer system is shown on Figure 9.1. The trunk system consists of gravity lines ten inches in diameter and greater, lift stations and forcemains. The City is divided into five sewer districts, each defining the limits of service for a separate trunk system. The Southwest, South Central and Southeast Districts are the largest districts and flow leaves Apple Valley to the south through MCES interceptor lines into Lakeville. The remaining two Districts are the Burnsville and Eagan Outlets (2 in each district) which all flow to the north into Burnsville and Eagan respectively. There are no trunk sewers in the Eagan Outlet. This area is only served by sewer laterals and encompass a regional park, zoo, and small residential area., Imagine Apple Valley 2040 .•.•. 0.0411.0 Apple Valley 3/1/18 Sanitary Sewer Utilityll Wastewater flow leaves Apple Valley at seven different locations at or near the City borders. A list of these locations and their average flows is presented in Table 9.1 These flows all lead from Apple Valley through other municipalities to either the Empire or Seneca WWTPs. There are approximately 11,181 acres in the City of Apple Valley, of which approximately 487 acres are developable. Of this total, 9,400 acres are served by the MCES Empire wastewater treatment plant (WWTP) located near Pilot Knob Road, 197th Street East and the Vermillion River, in Section 21 of Empire Township. Conveyance to the Empire WWTP is provided by the MCES Interceptor mains beginning at their meters M643, M648, and M644. Wastewater from approximately 1,800 acres in the northern portion of Apple Valley is served by the MCES Seneca WWTP located near Comanche Road and State Highway 13 in Section 21 in Eagan. Conveyance to the Seneca plant is provided by the MCES Interceptor main from meter M644A and trunk sewers in the City of Eagan and Burnsville. Table 9.1 Intercommunity Flows District From To Average Estimated Flow (MGD) Southwest (SW) SW, SW1, SW2, SW3, SW4 MCES M643 1.47 South-Central(SC) SC MCES M648 0.87 Southeast (SE) SE, SEI, SE2, SE3, SE4 MCES M644 1.06 Burnsville Outlet B1 MCES M644A 0.15 Burnsville Outlet B2 Burnsville 0.02 Eagan Outlet El Eagan 0.02 Eagan Outlet E2 Eagan 0.10 Imagine Apple Valley 2040 Apple Valley 3/1/18 Sanitary Sewer Utility12 ti E - Li 4 LI 1,h6; E 2 .E .E 1:16 ,t40; CD 2 Lil r, 03 o a) c 2 E...v E 11) 0 (1) .(1) 05 03 011 >, R u. >i, e= >, W 01 0 1-E GO ti L do 04,1A Ngadvs, .0 .G (1.11 A A A A A A 12‘4,1 A A i A A 3/1/18 Sanitary Sewer Imagine Apple Valley 2040 The City's sanitary sewer system consists of 9 lift stations ranging in size from a 100 gallon per minute (gpm) to a 2200 gpm lift station. The lift stations have been sized to handle buildout of their respective service areas. Table 9.2 summarizes the capacity information for each of the lift stations. The locations of the lift stations are shown on Figure 9.1. Table 9.2 Lift Station Capacities Lift Station No. LS 1 Present Capacity (MGD) 3.16 Ultimate Capacity (MGD) 3.16 Force Main Size (inches) 14 Capacity in GPM 2200 LS 2 2.016 2.016 12 1400 LS 3 0.936 0.936 8 650 LS 4 0.288 0.288 6 200 LS5 0.6 0.6 6and8 410 LS 7 0.288 0.288 6 200 LS 9 1.915 1.915 12 1330 LS 10 0.216 0.216 4 150 LS 11 0.144 0.144 4 100 At the present time, there are no major industries in Apple Valley whose average daily sewage flow exceeds 50,000 gallons. At this time, no industries in the City require pretreatment of their wastewater before discharge into the City's system. xisting Wastewati Flows The total flows are measured by MCES at 4 meter locations leaving the City. Annual, monthly, and hourly flow data is available for the MCES meters. Peak month and peak hourly flow data help determine infiltration and inflow contributions. The 10 -year average annual per capita wastewater flow is approximately 66 gallons per day (GPD) and the average dry weather (winter) per capita wastewater flow is approximately 66 GPD. Water use data is available by customer type and can be used to estimate the breakdown of wastewater flow between residential and other land uses. Water use data indicates that winter residential water use averaged 85% of the total water use over the last 10 Imagine Apple Valley 2040 .•• Apple Valley 3/1/18 Sanitary Sewer Utility14 years; thus the residential portion of the average per capita wastewater flow is approximately 56 GPD (85% of 66). When comparing 10 -year average dry weather flows to the same winter quarter water usage, the wastewater flow is approximately 97% of the water use. The metered dry weather wastewater flow correlates quite well with the metered water use for the same time period, which indicates some validity to the existing flow data. Population and Employment Forecasts The comprehensive wastewater plan is developed in part to portray the condition of the Apple Valley wastewater collection system under future flow conditions assuming that the population and employment forecasts are achieved. The purpose in developing the future plan is to anticipate future changes to the system that may be required and to allow for the development of a sustainable capital improvements program for the wastewater collection system. The Thrive MSP 2040 population, household and employment forecasts (Table 9.3) in 10 year increments through 2040 were used in generating wastewater flow projections and maintain the required consistency with all parts of the comprehensive planning effort. Table 9.3 Metropolitan Council Projections Forecast Year Population Households Employment 2010 49,084 18,875 14,279 2020 55,500 21,700 15,800 2030 59,200 23,300 16,400 2040 63,600 24,900 17,100 Table 9.4 presents the projections broken down according to sewered and unsewered components. Table 9.4 Metropolitan Council Projections (Sewered & Unsewered) Forecast Year Compon Population Households _ Employment 2010 MCES Sewered 46,686 17,928 13,714 2010 Unsewered 2,398 947 565 2020 MCES Sewered 54,980 21,500 15,680 2020 Unsewered 520 200 120 2030 MCES Sewered 59,170 23,280 16,400 2030 Unsewered 30 20 0 2040 MCES Sewered 63,520 24,880 17,100 2040 Unsewered 80 20 0 Imagine Apple Valley 2040 Ref: Metropolitan Council Thrive 2040 Water Resources Policy Plan May 2015 Apple Valley 3/1/18 Sanitary Sewer Utility15 Tables 9.5 and 9.6 present projections of sewered population, households and employees for the portions of the City served by the Empire and Seneca WWTPs, respectively, as prepared by MCES and presented in its Thrive 2040 Water Resources Policy Plan. Table 9.5 presents projected sewer flows for the City, broken into the Empire and Seneca WWTP service areas, based on MCES projections. Table 9.5 Projections for Empire WWTP Ref: Metropolitan Council Thrive 2040 Water Resources Policy Plan May 2015 * Interpolated Values Table 9.6 Projections for Sceneca WWTP Year Population Households Employment _ 2020 50,500 19,700 14,400 2025* 52,500 20,550 14,650 2030 54,500 21,400 14,900 2035* 56,550 22,150 15,150 2040 58,600 22,900 15,400 Ref: Metropolitan Council Thrive 2040 Water Resources Policy Plan May 2015 * Interpolated Values Table 9.6 Projections for Sceneca WWTP Year Population Households Employment 2020 4,500 1,800 1,300 2025* 4,600 1,850 1,400 2030 4,700 1,900 1,500 2035* 4,800 1,950 1,600 2040 4,900 2,000 1,700 Ref: Metropolitan Council Thrive 2040 Water Resources Policy Plan May 2015 * Interpolated Values Sanitary Sewer Flow Projections Genf—al In an effort to forecast flows for future growth, the land use plan will be utilized. Flow rates will be established for each land use category based upon the anticipated density in units and persons per acre which can be applied to specific undeveloped parcels or redevelopment areas. These unit flow rates can be used to generate average annual flow projections for these specific development areas. To forecast future flow from existing areas historical flow data, industry standards and current MCES data were used. MCES has indicated that regional data suggests the current overall average annual flow is 85 gallons per capita per day (gpcd). This is lower than the traditional default for sewer design of 100 gpcd. Imagine Apple Valley 2040 Apple Valley 3/1/18 Sanitary Sewer Utility16 Furthermore, MCES has prepared future average flow projections for their system based upon 60 gpcd and 15 gallons per day (gpd) per employee. These figures are for new development and anticipate the gradual reduction of wastewater flow from existing development as a result of water conservation practices and the reduction of inflow and infiltration. Itis important to note that these flow rates will vary as systems expand and age, so it is prudent to use traditional design values when looking at the design of new lateral sewer or trunk systems. ..and Use The 2040 Land Use Plan served as the basis for the development of the sanitary sewer flow projections and analysis of the trunk system. Undeveloped land area within the City was determined to be approximately 500 acres. These areas were further defined by type of land use. Land use flow factors were used to allocated projected flows within the sewer model and are presented in Table 9.7. Table 9.7 Land Use Flow Factors Land Use Type Person/Unit Gal/Cap/Day Units/Acre Gal/Acre/Day Low Density Residential 3.5 100 1.8 630 Medium Density Residential 2.5 80 9 1,800 High Density Residential 2.0 70 14 1,960 Commercial/Industrial 2,000 Mixed Business Campus 1,500 Institutional 1,000 Parks/Recreation 250 Undevelopable (Water/Pond) 0 . mak Flow Fact The sanitary sewer system must be capable of handling the anticipated peak wastewater flow rate including any infiltration and inflow (1/1). The design peak flow rate can be expressed as a variable ratio to the average flow rate. Curves used to describe this ratio, called the Peak Flow Factor (PFF), indicate a decreasing ratio of peak flow to average flow with increasing average flow. Peak Flow Factor (PFF) curves have been developed to depict this ratio and MCES has analyzed the extensive flow data within their system to correlate actual peaking factors with the formulated curves. A summary of the design peak flow factors (Figure 9.2 below) based upon current MCES data will be utilized for estimating future peak flows from development areas. Imagine Apple Valley 2040 Apple Valley 3/1/18 Sanitary Sewer Utility17 Figure 9.2 Design Peaking Factor Table Table A-1: MCES Flow Variation Factors for Sewer Design Average Flow Peak Hourly Average Flow Peak Hourly (MGD) Flow Factor (MGD) Flow Factor 0.00 - 0.11 4.0 1.90 - 2.29 2.8 0.12 - 0.18 3.9 2.30 - 2.89 2.7 0.19 - 0.23 3.8 2.90 - 3.49 2.6 0.24 - 0.29 3.7 3.50 - 4.19 2.5 0.30 - 0.39 3.6 4.20 - 5.09 2.4 0.40 - 0.49 3.5 5.10 - 6.39 2.3 0.50 - 0.64 3.4 6.40 - 7.99 2.2 0.65 - 0.79 3.3 8.00 - 10.39 2.1 0.80 - 0.99 3.2 10.40 - 13.49 2.0 1.00 - 1.19 3.1 13.50 - 17.99 1.9 1.20 - 1.49 3.0 18.00 - 29.99 1.8 1.50 - 1.89 2.9 over 30.00 1.7 MCES has recognized that these peaking factors reflect that sanitary sewers (local and regional) have been designed for an average combined flow for residential, commercial, and industrial contributions of 100 gallons per capita per day. Since the current actual average is approximately 85 gallons per capita per day MCES has adjusted the peak flow factors upward (divided by 0.85) for determining 1/1 mitigation. This adjustment essentially reflects the available capacity for any additional infiltration and inflow in the system. These are then used to set the peak flow metershed goals for each community. Figure 9.3 below summarizes the peaking factors for MCES metershed goals. Figure 9.3 MCES Metershed Goal Peaking Factors Table A-2: Wastewater Flow Variation Factors for Determining Infiltration/ Inflow Mitigation Goals Imagine Apple Valley 2040 Average Flow Peak Hourly Average Flow Peak Hourly (MGD) Flow Factor (MGD) Flow Factor <0.10 4.5 2.51-3.00 3.2 0.11- 0.20 4.4 3.01-3.50 3.1 0.21-0.30 4.3 3.51-4.00 3.0 0.31-0.40 4.2 4.01-4.50 2.9 0.41-0.50 4.1 4.51-5.00 2.8 0.51-0.60 4.0 5.01-6.00 2.7 0.61-0.70 3.9 6.01-8.00 2.6 0.71-0.80 3.8 8.01-10.00 2.5 0.81-1.00 3.7 10.01-12.00 2.4 1.01-1.20 3.6 12.01-16.00 2.3 1.21-1.50 3.5 16.01-20.00 2.2 1.51-2.00 3.4 20.01-30.00 2.1 2.01-2.50 3.3 >30.00 2.0 .•.•. 0.0411.0 Apple Valley 3/1/18 Sanitary Sewer Utility18 Waste' Flow ctions When forecasting flows for communities that are mostly developed, historical data is used to determine total flow projections for the community. The 10 -year annual average per capita flow rate from Apple Valley is approximately 66 gallons per day (gpd), which is slightly lower than the current overall MCES system average of 85 gpd. This may be an indication of the general trend in water conservation similar to what the City has seen with the water system. It could also be an indication that the overall average 1/1 in Apple Valley's system is slightly below the metro area system average. While it is expected that water conservation within existing households will continue to improve. The existing sanitary sewer system will continue to age thus for planning purposes the City will use an overall per capita average of 100 gpd for future flow projections. This is a slightly more conservative value than historical data, but it is close to the current metershed goals set by MCES for the City as summarized below in Table 9.8. It is prudent to plan conservatively for long-lived infrastructure needs such as sewer systems. Table 9.8 Current MCES Metershed Goals � Monitoring Period: Jan 1 - Dec 31, 2018 . . ._ Metershed Adjusted Total Daily Peak Hourly 1/1 Goal (MGD) Flow (MGD) Flow Factor i ZJ L ■ M643 1.47 3.50 5.13 M644A 0.15 4.40 0.65 M644 1.06 3.60 3.80 M648 0.87 3.70 3.22 Total 3.55 12.80 *Equates to approximately 67 gpcd based upon estimated 2018 population of 52,795. Annual average wastewater flow projections through 2040 are summarized below in Table 9.9. These estimates are based upon an overall system average of 85 gallons per capita per day (gpcd), and assumes that there will be no unsewered properties remaining in the future. The projections for Metersheds M643, M644A, and M644 remain relatively the same as existing since that area is already fully developed and not anticipated to have any changes due to redevelopment. The undeveloped area in the southeastern area of the City is served by Metershed M648. Imagine Apple Valley 2040 Apple Valley 3/1/18 Sanitary Sewer Utility19 Table 9.9 Average Annual Wastewater Flow Projections Year Projected Total Average Annual Flow (MGD) i_ M643 M644A M644 M64,. 2020 1.47 0.31 1.13 0.88 2025 1.47 0.31 1.15 0.94 2030 1.47 0.31 1.16 1.01 2035 1.48 0.32 1.17 1.07 2040 1.48 0.32 1.17 1.15 These projections agree with MCES projections to the Empire and Seneca WWTP. (Table 9.10) Metershed M644A flows to Seneca WWTP and the other metersheds flow to Empire WWTP. Table 9.10 MCES Projected Flows by Treatment Facility Projected Avg Flow to Empire WWTP (MGD) Projected Avg Flow to Seneca WWTP (MGD) Projected Total Flow (MGD) 2020 3.48 0.31 3.79 2025* 3.56 0.31 3.87 2030 3.64 0.31 3.95 2035* 3.72 0.32 4.04 2040 3.80 0.32 4.12 Ref: Metropolitan Council Thrive 2040 Water Resources Policy Plan May 2015 * Interpolated Values Sanitary Sewer Tr k System Anaiy In order to gain an understanding of the hydraulic capacity of the existing wastewater collection system, a hydraulic model of the key system back bone components of the system was developed. To setup the hydraulic model, information was collected from an extensive database of GIS (Geographic Information System), field data collection and staff knowledge about the lift stations, trunk sewer mains and forcemains. Wastewater flow information was collected from flow monitoring data along with individual water meter data from the customer database to allocate wastewater flows throughout the community. Future sewer flows were determined from information provided by the Land Use Plan in which demands were determined by land use categories for undeveloped areas. Imagine Apple Valley 2040 Apple Valley 3/1 /1 8 Sanitary Sewer Utility110 system IJ esign Pc;commendations The hydraulic model analysis was performed to determine the available capacity within the existing system. After determination of available capacity, a layout of remaining future gravity sewers was incorporated into the hydraulic model. The potential system was sized based on established sewer design criteria including minimum slopes and minimum velocity. GIS information was utilized to determine ground elevations and preliminary slopes for the extension of sewers considering depth requirements and connections to existing sewers. Trunk sewer was laid out in the undeveloped gravel mining area and flows were allocated based on proposed land use. Capacity analysis was completed for the trunk sewer system to determine the remaining available capacity within the existing system. A map showing available capacity is shown in Figure 9.4. Analysis using the hydraulic model showed that no areas within the existing system experience surcharging. Surcharging is defined as overloading of the sewer beyond its design capacity. Although no areas surcharge, a few areas of the trunk sewer are within the 10% to 40% remaining capacity and should be reviewed with the model if and when re -development would occur in the future. Available capacity was labeled at key locations with large undeveloped areas. Future analysis including the addition of 500 acres of undeveloped land showed adequate capacity to handle the planned land use for these areas. Itis recommended to use the updated hydraulic model to review future development of these areas as actual development information becomes available. Imagine Apple Valley 2040 .•.•. 0.0411.0 Apple Valley 3/1/18 Sanitary Sewer Utility111 .2) cocintALL N a) co Infiltration and Inflow Genes The Metropolitan Council appointed a task force that met in 2003/2004 to address the impacts of excess inflow and infiltration (1/1) on the regional system. 1/1 describes clear water that enters wastewater collection systems and consumes capacity of the conveyance and treatment systems. Inflow is typically stormwater that increases peak flow in the wastewater system during and after rainfall events from point sources such as broken manhole covers, sewer cleanouts, sump pumps, foundation drains, and rain leaders. Infiltration is typically groundwater that gradually enters the wastewater system through cracks and openings in sewer mains, service laterals, joints, and deteriorated manholes. It was determined that the cost for source removal of 1/1 was much more cost effective than the cost to store, convey and treat excess 1/1. Therefore, the current program focuses on source removal within the communities and regional system. In 2009/2010 the Metropolitan Council Demand Charge Task Force reviewed goals of the current program including a possible demand charge. The recommendation was to implement an on- going program similar to the existing 1/1 program. However, instead of a mandatory demand charge, discretion was left with MCES to institute a demand charge if a community is not working towards meeting its 1/1 Goal. Included within the MCES 2040 Water Resources Policy, adopted in May of 2015 and more recently amended, is the establishment of 1/1 goals for all communities discharging wastewater to the regional system. Communities with excessive 1/1 will still be required to eliminate it within a reasonable time period. The Council has established 1/1 goals for each metershed. The 1/1 Goal is the maximum allowable discharge to the regional wastewater system expressed as a peak hourly flow rate measured in million gallons per day (mgd). The 1/1 Goal is equal to the adjusted average dry weather flow (ADF) multiplied by the respective peak hourly factor. The ADF is based upon a 10 year rolling average of meter flow data and is adjusted upward by population growth for future forecasting. As part of the ongoing 1/1 efforts a procedure manual is updated by the Metropolitan Council for the subsequent program year. The City's Comprehensive Sanitary Sewer Plan addresses the MCES specific requirements. Existing 1/' Average dry weather (winter) flows can be compared to annual average and peak month flows to determine the amount of 1/1 entering the system. To understand if groundwater plays a role during dry weather periods, the average dry weather flows can be compared to the water use for that same period. These flows should closely correlate since no wet weather rainfall events or lawn sprinkling occurs in the winter time. For Apple Valley, the dry weather flow averages about 97% of the water use for the same period indicating that there is no base infiltration in the Imagine Apple Valley 2040 .•.•. 0.0411.0 Apple Valley 3/1/18 Sanitary Sewer Utility113 winter time. Table 9.11 summarizes average annual, average dry weather and peak month flows for the last 10 -years. It also compares the various flows to help quantify the amount of I/I entering the system on an average basis. Table 9.11 Average Annual Wastewater Flow ear _ Population Average Annual Flow : AA (MGD) Average Dry Weather Flow : AD (MGD) Peak Month Flow : PM (MGD) Base 1/1 AA - AD (MGD) Average Wet Weather I/I PM - AA (MGD Peak Month to Annual Average Ratio 2007 50,595 3.54 3.52 4.47 0.02 0.93 1.26 2008 51,120 3.40 3.40 4.19 0.00 0.79 1.23 2009 50,149 3.39 3.35 4.10 0.04 0.71 1.21 2010 49,084 3.36 3.33 4.84 0.03 1.48 1.44 2011 50,330 3.38 3.38 4.29 0.00 0.91 1.27 2012 50,340 3.29 3.23 4.69 0.06 1.40 1.43 2013 50,400 3.32 3.29 4.42 0.03 1.10 1.33 2014 50,600 3.28 3.24 4.94 0.04 1.66 1.51 2015 50,161 3.20 3.20 4.15 0.00 0.95 1.30 2016 50,450 3.20 3.19 3.76 0.01 0.56 1.18 Average I/I Flow (MGD) --- 1.05 Average I/I Per Capita (GPCD) --- 20.8 Average I/I % ---- 31 Comparing annual average (AA) to average dry weather (AD) the average flow attributable to 1/1 is approximately 0.02 mgd or 0.5 gallons per capita per day, which could be considered the base 1/1. The average peak month (PM) to annual average ratio is 1.31, which not overly excessive when looking at typical peaking factors. This equates to an average 1/1 contribution of approximately 1.05 mgd during wet weather periods. By looking at flows over the course of a year it is possible to quantify 1/1 on an average basis. However, it is much more difficult to determine peak instantaneous or peak hour events that are mostly associated with inflow. A one (1) inch rainfall event could have a large impact on the system or minimal impact depending upon the duration and intensity as well as other factors for each particular event. Typically no two events are the same, and at best patterns can be determined for general rainfall amounts. To pinpoint peak hour events it requires a significant amount of flow monitoring at several locations in a large system. There has been only limited data collected during previous mitigation efforts which makes it is difficult to accurately quantify for the entire system. On -go The City has a proactive program directed at identifying and correcting 1/1, including the following: Imagine Apple Valley 2040 .•.•. 0.0411.0 Apple Valley 3/1/18 Sanitary Sewer Utility114 • Stringent testing of all new sanitary sewer lines • Televising of clay pipes as well as areas where problems have been identified. • Reconstruction projects, including replacing clay pipe with PVC, replacing manhole structures, installing gator wrap around chimney section • Lining manholes, approximately 1 to 3 annually • Cured In Place Pipe (CIPP) Lining spot repairs • Lining entire sections of sanitary sewer lines with reconstruct projects and areas as identified • Manhole inspection as part of sewer cleaning operations, which are performed daily March through November, weather permitting. Approximately one third of the system is cleaned (and manholes inspected) annually. Manholes are also inspected as part of the televising program. Manholes are repaired as needed. Internal chimney seals are installed on manholes with plastic rings where 1/1 has been identified. • Additional manhole inspections (Example Lift Station 4 Project - proposed project lining of structures because of length of time before reconstruct of area) • Manhole repair, including chemical injection and coatings • Sewer flow meters in 2018 and 2019 budget — plan is to compare sewer flow data with Advanced Meter Infrastructure (AMI) meter data in select areas • Sump pump inspection program — to be conducted with the meter replacement project • Employee education — NPDES annual training • Resident education — website, newsletters • Field observation — wet weather manhole inspections & additional observations, such as when conducting a GSOC locate adjacent private parking lot street, crew found a sanitary manhole with a storm grate cover on it. Crew replaced the manhole grate cover with a solid cover and the business was notified. • City Code that promotes reduced 1/1 — The current code prohibits owners, occupants or users of any premises to direct into or allow any storm water, surface water, water from air conditioner systems, oil or other material to drain into the sanitary sewer system Individual Sewae Thatment Systems The City of Apple Valley currently has an ordinance regulating the installation of on-site wastewater disposal systems. Under this ordinance, the design of the system is reviewed and permitted in accordance with the guidelines of Minnesota Pollution Control Agency Standards MN Rule 7080, 7081, 7082 and its amendments. A copy of the City's ordinance is provided in the Comprehensive Sewer Plan. The locations of present on-site systems are shown on Figure 9.5. At the present time, no significant problems are known to exist for the existing on-site systems. Imagine Apple Valley 2040 .•.•. 0.0411.0 Apple Valley 3/1/18 Sanitary Sewer Utility115 Capital Improvement Program The City of Apple Valley is committed to providing a sanitary sewer system that meets the City's current and future needs and agrees with MCES goals and projections. Most of the City's trunk system has been constructed. The trunk system will be expanded in the few remaining areas as development proceeds. Based on the computer modeling analysis, the addition of 500 acres of undeveloped land shows adequate capacity in the current system to handle the planned land use for these areas. The hydraulic model will be updated on an on-going bass to review future development of these areas as actual development information becomes available. Future Capital Improvement Plan (CIP) projects will explore and identify ways to improve the sanitary sewer system, such as during reconstruction projects for sanitary sewer mains, lift stations and forcemains. In addition, the City will continue its current operation, maintenance and 1/1 reduction efforts as identified previously. Preventative maintenance is extremely important in the life of a sanitary sewer system. Preventative maintenance includes but not limited to monthly and annual inspections, SCADA monitoring, electrical inspections. Imagine Apple Valley 2040 .•.•. 0.0411.0 Apple Valley 3/1/18 Sanitary Sewer Utility116 Sewer Utility117 3/1/18 Sanitary Imagine Apple Valley 2040 Water Utility Introduction The City of Apple Valley is committed to delivering safe, clean drinking water to the community in a water system that will meet the needed demand and supply water for fire suppression. The City routinely updates its water supply plan, water rates and capital improvement plan to ensure that the plans are current, relevant and effective to meet the City's needs into the future. The plans serve as guides for construction, operation and maintenance of the municipal water system. Apple Valley completed a Water Supply and Distribution Plan in October 2002 and a DNR Water Emergency and Conservation Plan in October 2006 (Amended in March 2008), which were reviewed in conjunction with the 2030 Comprehensive Plan. Metropolitan Council requires that the City submit a Water Supply Plan as part of the 2040 comprehensive plan update. In addition, all public water suppliers in Minnesota that operate a public water distribution system, serve more than 1,000 people and/or all cities in the seven - county metropolitan area, must have a water supply plan approved by the Department of Natural Resources (DNR). To obtain more detail about Apple Valley's existing and future water supply, see the 2018 Minnesota DNR Water Supply Plan, which is included as an Appendix to this Comprehensive Plan. Water Use Tical Water Lu Growth has not occurred as rapidly as projected in previous plans such as the Water Emergency and Conservation Plan (2006) or the City's Comprehensive Plan (2009). Previous plans projected the 2016 population served to be 66,641 people and the reported 2016 population served was approximately 50,350 people. However, future growth and increased population and resulting water demand is anticipated, as addressed in a following section. Water use in Apple Valley from 1996 to 2016 is described in Figure 9.W1. More detailed information is provided in the current and previous DNR Water Supply Plans. Imagine Apple Valley 2040 Apple„ Vaiiey 3/1/18 Water Utilityll 50.0 - 45.0 - 40.0 0 0 `-" 35.0 W 30.0 ce LLI - 25.0 • 20.0 W U � 15.0 ceO c� 10.0 Figure 9.W1 historical Water Demand 1996 through 201r 50.00 45.00 40.00 35.00 30.00 25.00 5.0 - i YEAR 0 -Maximum Day Demand -Average Day Demand -Annual Precipitation din) _ SP Airport. Gage Some key water demand factors to note include: -' 5.00 0.00 Average Daily Demand: The average daily demand (total annual demand divided by 365) has begun to exhibit a downward trend over the last decade. The past 5 -year average is 5.9 MGD, which is a decrease from the 5 -year average of 6.6 MGD reported in the 2006 DNR Water Supply Plan. Maximum Daily Demand: Maximum daily demand over the past decade does not appear to be exhibiting an upward or downward trend. Maximum day demand generally occurs during a summer month when precipitation is at its lowest amount and irrigation is at its highest amount. Annual precipitation data from the Minneapolis -St. Paul Airport can be an indicator, but does not always correlate to maximum day demand. Peaking Factor: The water demand peaking factor is the ratio of the average maximum day to the average day. The DNR has set a goal of reducing the average 10 -year peaking factor to less than 2.6. Apple Valley achieved this goal with a 10 -year average peaking factor of 2.5 for 2007-2016. This was improvement over the previous peaking factor from 1996 — 2006, which was 2.8. Residential Per Capita Water: The DNR has set a goal of reducing the residential per capita water demand to less than 75 gallons per capita per day (gpcd). The City's recent 5 -year average equaled this goal of 75 gpcd, which was an improvement over the previous 5 -year average of 91 gpcd reported in the 2006 plan. Imagine Apple Valley 2040 Apple„ Vaiiey 3/1/18 Water Utility12 Total Per Capita Water Demand: Total per capita water demand for Apple Valley has begun to exhibit a downward trend since the adoption of the City's 2006 Water Conservation Plan. Over the last decade, the average total per capita water demand is 122.6 gpcd, which is a decline from the average of 135.8 gpcd reported in the 2006 plan. Unaccounted (Non -revenue) Loss: Unaccounted for water use is the volume of water withdrawn from all source water minus the volume of water delivered. The value represents water "lost" by miscalculated water use due to inaccurate meters, water lost through leaks or water that is used but unmetered or otherwise undocumented. The DNR has set a goal of reducing unaccounted for water to less than 10%. Apple Valley's exceeds this goal with a recent 5 -year average unaccounted for water of 9.3%. This was an improvement over the previous 5 -year average of 12% reported in the 2006 plan. Large Volume Water Users: The ten largest water users are shown in Table 9.W1. These customers account for approximately 10% of the annual consumption of water. Table 9.W1 Large Volume Users Customer Gallons per Year %TotalAnnual Use a Minnesota Zoo 64,686,000 3.53% Cedar Knolls Mobile Homes 33,086,000 1.81% Eastview High School Sprinkler A 15,952,000 0.87% Cobblestone Lake Master Association 15,868,000 0.87% Kingston Green Apartments 15,581,000 0.85% Eastview High School Sprinkler B 9,630,000 0.53% Quarry Point Park Athletic Complex Sprinkler 8,096,000 0.44% Apple Valley Estates LP 7,030,000 0.38% Uponor 6,404,000 0.35% Paradise Car Wash 5,792,000 0.32% Water Demand Projections The projected annual water demand through 2040 is summarized in Table 9-W2. The Metropolitan Council provided the projected populations for the years 2020, 2030 and 2040. The population projections for all other years were extrapolated. The difference between the total Imagine Apple Valley 2040 Apple„ Vaiiey 3/1/18 Water Utility13 population and population served is based on estimates provided in the Metropolitan Council "Thrive MSP 2040" forecast. Over the last decade, the total per capita water demand has exhibited an average annual reduction of 2.5%. The projected total per capita demand in 2017 is based on the average total per capita demand over the last ten years. This is equal to 122.6 gpcd. The City considered reducing the total per capita demand estimate in the projections, but decided to keep it steady at the 10 year average rate of 122.6 gpcd due to the uncertainty of the water usage requirements of future residential, commercial and industrial land use development. The projected average day demand is equal to the total per capita per day times the projected population. This is then divided by one million to get the average day demand in MGD. The maximum day demand is based on the average annual peaking factor over the last ten years, which is 2.5. For each year the average day demand is multiplied by the peaking factor to obtain the maximum day demand in MGD. Table 9.W2. Projected Annual Water Demand Year Projected Total Population Projected Population Ser'"ilai Projected Total Per Capita Water Demand (GPCD) Projected Average Daily Demand (MGD) Projected Maximum Daily Demand (MGD) 2017 51,713 50,629 122.6 6.2 15.2 2018 52,975 52,079 122.6 6.4 15.7 2019 54,238 53,530 122.6 6.6 16.1 2020 55,500 54,980 122.6 6.7 16.5 2021 55,870 55,399 122.6 6.8 16.6 2022 56,240 55,818 122.6 6.8 16.8 2023 56,610 56,237 122.6 6.9 16.9 2024 56,980 56,656 122.6 6.9 17.0 2025 57,350 57,075 122.6 7.0 17.2 2030 59,200 59,170 122.6 7.3 17.8 2040 63,600 63,520 122.6 7.8 19.1 GPCD - Gallons per Capita per Day MGD - Million Gallons per Day The 2030 Comprehensive Planning effort projected significantly high water demands due to greater population projections and higher per capita water use projections. The comparison between previous planning effort projections and the current ones are summarized in Table 9.W3. Imagine Apple Valley 2040 Apple„ Vaiiey 3/1/18 Water Utility14 Table 9.W3. 2030 and 2040 Comprehensive Plan Comparison Previous 2030 Projection 71,200 9.70 24.20 Current 2030 Projection 59,170 7.30 17.80 Current 2040 Projection 63,520 7.80 19.10 Existing: =Future Water System The existing and future water system for the City of Apple Valley (Figures 9.W2, 9.W3 and 9.W4) consists of wells, a water treatment plant (WTP), storage facilities, booster station and watermain ranging from 6 inch to 24 inch diameter located in three (3) pressure zones. Each component and its adequacy for the future based on the 2040 population projections and land use map is described in more detail in the following sections. Water sources Groundwater Wells The City's twenty wells ranging from 487 to 1127 feet deep draw drinking water from the Jordan, Prairie Du Chien - Jordan and Mt. Simon groundwater aquifers (See Table 9.W4 and Figure 9.W4). Five of these wells in the Jordan and Mt. Simon aquifers are available only for emergency use. Table 9.W4. Water Supply wens Well No. Unique Well No. Year Installed i Capacity (gpm) Well Depth (Feet)j Geologic Unit Status 1 205824 1963 600 520 Jordan Emergency Only 2 205825 1964 900 530 Jordan Emergency Only 3 205812 1962 1,000 584 Jordan Emergency Only 4 205820 1971 1,200 504 Jordan Active 5 207677 1974 1,300 487 Jordan Active Imagine Apple Valley 2040 Apple„ Vaiiey 3/1/18 Water Utility15 Well No. Unique Well No. Year Installed Capacity (gpm) Well Depth (Feet) Geologic Unit Status 6 127263 1976 1,200 507 Jordan Active 7 127277 1977 1,250 494 Jordan Active 8 127297 1979 1,300 506 Jordan Active 9 151561 1981 1,200 515 Jordan Active 10 151563 1982 1,200 502 Jordan Active 11 191943 1985 1,400 493 Jordan Active 12 449257 1989 1,400 494 Jordan Active 13 433284 1989 1,500 516 Jordan Active 14 509056 1990 900 1120 Mt. Simon Emergency Only 15 519955 1993 900 1127 Mt. Simon Emergency Only 16 205823 2000 1,300 510 Prairie du Chien - Jordan Inactive 17 603075 2001 1,800 513 Jordan Active 18 674495 2004 1,800 515 Jordan Active 19 731113 2006 1,600 510 Jordan Active 20 778046 2011 1,900 495 Jordan Active The total capacity of Apple Valley's active wells and emergency wells is 24,350 gpm (35 MGD). The firm capacity of the system, which assumes the largest well out of service, is 22,350 gpm (32 MGD). The firm capacity without emergency wells is 18,150 gpm (26 MGD). To meet the needs of the system, firm capacity should equal or exceed the maximum day demand in accordance with AWWA (American Water Works Association) recommendations. The current wells will meet the 2040 projected maximum demand of 19.1 MGD. The locations for future Wells No. 21, 22, 23 and 24 were selected at the time of the last comprehensive plan in 2006 when greater increase in population and water demand were Imagine Apple Valley 2040 Apple„ Vaiiey 3/1/18 Water Utility16 expected. As indicated above, these wells are not expected to be needed by 2040. However, they will remain in the City's plan and continue to be evaluated. Emer-'rwv DirRreronnertun Five Interconnections with adjacent distribution systems have been established (See Table 9.W5) and can be used for emergency and auxiliary water supply. Table 9.W5 Emergency Interconnections Other Water Supply System Owner i i i BURNSVILLE - COUNTY RD 11 Capacity (GPM & M = 174 TO 347 GPM, 0.25 TO 0.5 MGD (8 -INCH) ROSEMOUNT - EVERMOOR PARKWAY 347 GPM, 0.5 MGD TO 1.5 MGD (12 -INCH) ROSEMOUNT - DIAMOND PATH 347 GPM, 0.5 MGD (8 -INCH) ROSEMOUNT - DOVE TRAIL 347 GPM, 0.5 MGD (8 -INCH) LAKEVILLE - GRANADA AVENUE 347 GPM, 0.5 MGD (8 -INCH) All five (5) emergency interconnections are subject to water availability. They are utilized only with prior authorization and coordination with the requesting city. Under emergency conditions, Apple Valley could provide water to the communities of Burnsville, Rosemount, and Lakeville. Water supply capacity will be dependent on available WTP capacity above the current daily water demand during the emergency. When an emergency connection is implemented, it is recommended to monitor pressure upstream at the nearest hydrant to gauge the amount of flow through the connection point to maintain adequate pressure within the distribution system. Rosemount, Lakeville, and Burnsville are all able to supply water to Apple Valley. To utilize the interconnections, each City would need to evaluate their system needs to ensure adequate water for domestic and fire use. Water Sourc n Alter tives Apple Valley's access to surface water is through an emergency connection with the City of Burnsville. The City of Burnsville treats both water from the Kramer Quarry (gravel mining operation) along the Minnesota River in addition to groundwater. A plan for additional surface water treatment has not been completed and is not considered practical. Imagine Apple Valley 2040 Apple„ Vaiiey 3/1/18 Water Utility17 E 'Et tri j s re, g •E t E 4i ,02 1.1 ..,,,,,,Innnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn CIN A9C11,1 a5,11,3 ANNHOe 3AV gtiv 8vana 011,111/4 Ng0,11,3 .11 - Pr. •, 1,1 Imagine Apple Valley 2040 V O V Ocu Cr) (o) N 61) 0. M bA LL ;,5 gP g t C!.(167 i S al. a 2 :1 E g 3 33 N...74, ,g .c z g 3917 3 = 3 Si_ �. 2 1111111CD1W •16 VI I u. oc -4 E 1,- >, .z.. 11 z 0 ._ m , >,.. co C La) E u) c 4- cin X 0 = 2 I P co LL co 1 3/1/18 Water Utility19 Imagine Apple Valley 2040 TD A cp. cp.C▪ O 11. `ot LL • &a 2, ."6 L al ,1 2 2 p, 62 12 c2 ce re cif ce • A.'''4' e.+LLAgJ � i � [Lyy��J rL� � L � L !Ig` T � � T'T iL! � WL R Llll :15' iii A t O 3/1/18 Water Utility110 Imagine Apple Valley 2040 Water Treatment The water treatment plant (WTP) was originally designed and constructed in 1988 to treat 12 MGD. In 1997, a filter bypass line was added so a portion of the flow could be diverted around the filter cells if usage was expected to exceed the design capacity. The bypass water was blended with the treated water prior to the chemical addition of chlorine and fluoride. By utilizing the bypass and increasing the backwashing frequency, it was possible to produce more than the designed 12 MGD. Under ideal circumstances, a maximum of 19 to 20 MGD was processed at the WTP. To ensure that the filter bypass water did not adversely impact the treated water quality, a maximum 20% bypass capacity was recommended, limiting the total plant capacity to 16.25 MGD. In 2015, Apple Valley expanded and upgraded the WTP. The expansion added four filter cells and two backwash tanks increasing the total plant capacity to 24.4 MGD. The 24.4 MGD assumes the WTP is functional at 100% capacity with the twelve filter cells and at the recommended 20% bypass capacity. Currently, 17 of the City's 20 wells feed into the WTP. Water from the wells is initially treated with chlorine and sodium permanganate (NaMnO4). These chemicals are used as oxidants to bring the iron and manganese out of suspension so they can be filtered out in the filter cells. The water then flows through approximately 30 inches of sand media, where the iron and manganese (no longer in suspension) are trapped on top of the media. The filtered water is then treated with chlorine and fluoride prior to flowing to the clearwell for storage until needed. From the clearwell, water flows by gravity to the pumping chamber and is pumped to the distribution system and reservoirs. Well 16 has been offline since 2013 and is currently listed as inactive status. The water supply can be further augmented by utilizing emergency backup wells (Wells 1, 2 and 3) which pump water directly into the distribution system and are not treated by the WTP. These emergency wells have individual chlorine feed systems. Wells 14 and 15 are also considered emergency backup wells but feed into the WTP. They are both constructed in the Mt. Simon aquifer and the City is restricted from utilizing them to meet water demand. The projected maximum water demand in 2030 and 2040 is 17.8 MGD and 19.1 MGD respectively. Current treatment capacity without the filter bypass is 18 MGD and 24.4 MGD with the filter bypass limited to 20% of the total plant capacity. Bypassing is initiated at approximately 16 to 17 MGD in anticipation of higher demands. The current water treatment plant is therefore capable of meeting the projected demands. Much of the demand can be met without bypassing the filters. However, during some of the maximum demand days a portion will need to be bypassed. Imagine Apple Valley 2040 Apple„ Vaiiey 3/1/18 Water Utility111 Wa+- Apple Valley stores water in six existing storage structures as summarized in Table 9.W6. Usable storage is defined as the storage available while still maintaining a sufficient residual pressure within the distribution system. For Apple Valley, this is when the storage water level is within 40 feet of the high-water level in the reservoirs or towers. A water storage analysis was conducted to evaluate the ability of the existing storage to meet equalization, fire and emergency storage, which are defined as follows: Equalization Storage — Capacity to meet peak hour demands while operating at a constant flow. Fire Storage — Capacity to meet fire demands. Emergency Storage — Capacity to meet demands during a supply or transmission pipeline outage. Based on the future water demand projects and an average water demand of 7.8 MGD and maximum day demand of 19.1 MGD needed in 2040, the current storage facilities will continue to meet equalization storage needs, provide adequate fire flow capacity and provide emergency storage. Table 9.W6 Water Storage Structure Name Type of Structure Al Storage Capacity (Gallons) Available/Usable Storage Capacity (Gallons) Longridge Reservoir Ground Storage 4,000,000 3,000,000 Palomino Reservoir Ground Storage 3,300,000 1,320,000 Nordic Reservoir Ground Storage 2,000,000 1,290,000 Valleywood Reservoir Ground Storage 2,000,000 1,220,000 Quarry Point Tower Elevated storage 1,500,000 1,500,000 Water Treatment Plant Clearwell Other - Clearwell 2,000,000 1,500,000 Total NA 14,800,000 9,830,000 Dista' II system H• raulic A clysis The water distribution system consists of watermain ranging in size from 6 inch to 24 inch in diameter (Figure 9.W2) and located throughout the city. The distribution system is divided into three pressure zones (Figure 9.W3) to provide appropriate pressures to residents. Imagine Apple Valley 2040 Apple„ Vaiiey 3/1/18 Water Utility112 The City's hydraulic model of the distribution system was updated and calibrated in 2017. It is used as a dynamic tool for development and redevelopment planning and used to support policymakers with multi-million dollar decisions to address infrastructure needs. The hydraulic model will be continuously updated and evolve in response to the changes made within the distribution system as well as in response to changes with water system demands. The performance of a finished water distribution system is judged by its ability to deliver the required flows (customer demands and fire -fighting needs) while maintaining adequate system pressures and water quality. Meeting these requirements, in part, depends on the components within the existing system including transmission and distribution piping, elevated water towers and ground storage reservoirs. Analysis of pressures throughout the distribution system based on maximum day demand of 19.1 MGD are shown in Figure 9.W5. Ten States Standards recommends water pressures between 35 psi and 80 psi. A majority of the system falls within a desired level of service of 50 to 80 psi. Near pressure zone boundaries, the system could be analyzed to determine the ability to expand the upper pressure zone without exceeding 80 to 100 psi. When pressure exceeds 80 psi a pressure reducing valve is required per the State Plumbing Code. There are a few small areas were pressures range from 30 to 40 psi near ground storage reservoirs or near the edge of a pressure zone boundary. In areas near ground storage reservoirs, individual in-house boosters would be recommended for areas with limited amount of homes effected by low pressures. In these few areas where the water pressure is lower, the water pressure/psi and flow is adequate for domestic use and fire protection. Available fire analysis is shown in Figure 9.W6. Overall, the system can provide a minimum of 500 gpm of available fire flow throughout the system. A majority of the water system can provide at least 1,500 gpm or more of available fire flow at a residual pressure of 20 psi. An available fire flow of 1,500 gpm is typically adequate for a majority of facilities within the system. Facilities needing fire flow greater than 1,500 gpm are typically in commercial and industrial land use areas along major street corridors that typically are served by 12 -inch and greater water transmission pipelines. Imagine Apple Valley 2040 Apple11 Vauey 3/1/18 Water Utility113 0. :pp co 1/LI c\I a) a) a) t 7'' ,i' , `,f,4 • Lci t g -Ez3,4a. . , , ti ? L% i„,1 ti 2 l' 2 L'i,' i -g 2 '2 c , 11 , :, a, &ii -.E1 E . , 0 .. -c . , = 8 ad ,' 11' g. 2 ,,,,,, ,,, c,:,, 4, -,-, ci i. E ,. N m Ifil ' • 2 .2. F '2 H2 m 7: E 2 '15, i - 1,, , , -E ' J 2 .2 i3 2 g r5 u lit il I 1 1 W9Y�A4N� 0 LT. as ii cu7:2 co •_ co au >i (i) a� L O ri7 g '13 ice+ ).072 °I Future System 0 2 7 ,1 3) 7/ ° E co 0. Cr; ai CD C*4 co cc II < CO 13 ,50TH T N�• Imagine Apple Valley 2040 Emergency Response Plan Water emergencies can occur because of vandalism, sabotage, accidental contamination, mechanical problems, power failings, drought, flooding, and other natural disasters. The purpose of emergency planning is to develop emergency response procedures and to identify actions needed to improve emergency preparedness. The City has adopted a Federal Emergency Response Plan that was certified in December 2014. In addition, the current City's DNR Water Supply Plan contains water supply protection measures, including, but not limited to, a plan for prioritizing water use, reducing demand and implementing emergency water connections. Source Water Protection Wellhead Pry :ion Wellhead protection is a means to safeguard public supply wells by preventing contaminants from entering the area that contributes water to the well or wellfield over a period of time. In 2004, the City completed a Wellhead Protection Plan (WHPP) in accordance with Minnesota rules, Chapter 4720.5200 and updated their plan in 2009. The area from which water is supplied to the City wells is identified as the Wellhead Protection Area (WHPA). The area around it, which is to be protected and managed, is defined as the Drinking Water Supply Management Area (DWSMA). These areas are delineated in the Plan and were approved by the Minnesota Department of Health on December 16, 2009. The City's wells are considered susceptible to contamination from activities at the land surface. The plan provides management strategies that the City has developed to address the vulnerability rating of the aquifer and to protect the water supply, including, but not limited to: • Public education programs on wellhead protection • Proactive management of existing, unsealed and unused wells • Proactive management of other potential sources of contamination • Monitoring of well water levels and possible contaminants Water Conservation Plan Recr Conservation Eff The City implemented a Water Conservation Plan in 2006 through the DNR Water Emergency and Conservation Plan (Amended in March 2008). The plan addressed both conservation on the supply side (leak detection and repairs, metering), as well as on the demand side (reductions in usage). Imagine Apple Valley 2040 Apple„ Vaiiey 3/1/18 Water Utility116 Trlcking Su Results of conservation efforts are measured based on the water demand, water losses and peak demand trends. The residential per capita per day values, peaking factor and unaccounted for water values have each shown a downward trend since conservation efforts were implemented in 2006. The residential per capita demand has been reduced from an average of 91 gpcd in 2006 to 75 gpcd currently. The peaking factor has been reduced from an average of 2.8 in 2006 to 2.5 currently. Unaccounted water has been reduced from an average of 12% in 2006 to 9% currently. Conservation Strategies ftr the Ful An update Water Conservation Plan is included in the 2018 Minnesota Department of Natural Resources (DNR) Water Supply. (See Appendix to this Comprehensive Plan) The City plans to continue the water conservation techniques employed over the last 10 years and annually evaluate and expand them as appropriate. A meter replacement program is currently underway and it is anticipated that all meters will be replaced by 2020. The City employs conservation billing strategies for water and rates are evaluated annually. Capital Improvement & Preventative Maintenance The City is committed to capital reinvestment of the Water Utility to achieve the goals and policies set forth and maintain the long-term sustainability of the Utility. A Capital Improvement Plan (CIP) is in place to cover expansion (if needed), repair and maintenance of the water system and is updated annually. As discussed in this plan, the capacity of current wells, water treatment plant and storage facilities meet the future demands based on the 2040 population projections and land use map. If significant changes were to occur, such as the addition of a large water user, the water plan and resulting CIP would need to be updated. The current water treatment plant is meeting all state and federal government regulations related to water quality. Although not anticipated, the future planning efforts and CIPs would also need to be adjusted if a currently unregulated water constituent becomes regulated„ existing regulations become more stringent, source water contamination or substance(s) identified. Future CIP projects will explore and identify ways to improve the water system, such as investigating lower pressure areas and evaluating the benefit of increasing watermain size during reconstruction projects. Preventative maintenance is extremely important in the life of a water supply and distribution system. Preventative maintenance is scheduled as follows: • Production wells pulled every 7 years. • Water treatment plant (WTP) high service pumps pulled every 8 years. • Leak detection one-third of the water system plus on cast iron pipe, PVC, overlay areas, etc. - annual inspections. Imagine Apple Valley 2040 Apple„ Vaiiey 3/1/18 Water Utility117 • Valve operation program - scheduled as time permits. • Hydrant flushing and inspection program - semi- annual program spring and fall • Reservoir maintenance: warranty inspection at 2 years, touch up repairs at 10 to 12 years, total reconditioning at 20 to 25 years. Cathodic protection at selected sites - annual check. • Valve, meter, equipment, etc. upgrades and replacements are budgeted and scheduled as necessary. Imagine Apple Valley 2040 Apple„ Vaiiey 3/1/18 Water Utility118 • • • •••• ••••• •••• • • • Apple11 ITEM: PLANNING COMMISSION MEETING DATE: SECTION: 7.B. March 7, 2018 Other Business Description: Review of Upcoming Schedule and Other Updates Staff Contact: Joan Murphy, Department Assistant ACTION REQUESTED: N/A SUMMARY: Next Planning Commission Meetings: Department / Division: Community Development Department Wednesday, March 21, 2018 - 7:00 p.m. • Public hearing applications due by 9:00 a.m. on Wednesday, February 21, 2018 • Site plan, variance applications due by 9:00 a.m. on Wednesday, March 7, 2018 Wednesday, April 4, 2018 - 7:00 p.m. • Public hearing applications due by 9:00 a.m. on Wednesday, March 7, 2018 • Site plan, variance applications due by 9:00 a.m. on Wednesday, March 21, 2018 Next City Council Meetings: Thursday, March 8, 2018 - 7:00 p.m. Thursday, March 22, 2018 - 7:00 p.m BACKGROUND: N/A BUDGET IMPACT: N/A