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R 4040RESOLUTION N0.4040 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF ARROYO GRANDE APPROVING THE EAST VILLAGE NEIGHBORHOOD PLAN (NEIGHBORHOOD PLAN CASE NO. 04-001) FOR APPROXIMATELY 22 ACRES LOCATED EAST OF THE NOGUERA COURT SUBDIVISION, NORTH OF THE EAST CHERRY AVENUE EXTENSION, AND SOUTH OF ARROYO GRANDE CREEK; APPLICANT - CREEKSIDE ESTATES OF ARROYO GRANDE,LLC WHEREAS, the City Council of Arroyo Grande adopted the updated General Plan which became effective on November 9, 2001; and WHEREAS, the Land Use Element of the 2001 General Plan specifies that the "21t acre area south of Arroyo Grande Creek east of Tract 409 (Noguera Park), and north of E. Cherry Avenue designated Single-Family Residential -Medium Density (SFR-MD) is subject to a requirement for a neighborhood plan to coordinate street, drainage, water, sewer, agricultural butter, creekside trail and conservation/open space considerations prior to approval of any subdivision or parcel map"; and WHEREAS, the City Council held public hearings on the East Village Neighborhood Plan (EVNP) on October 10, 2006, July 10, 2007, and October 9, 2007 and determined it met the requirements of the General Plan provisions; and WHEREAS, a Mitigated Negative Declaration was adopted on November 14, 2006 for the Cherry Creek Project, including Neighborhood Plan Case No. 04-001; and WHEREAS, after consideration of all testimony and relevant evidence, the City Council has determined that the EVNP, attached hereto as EXhibitA, can be adopted based on the following findings: The proposed Neighborhood Plan is consistent with the goals, objectives, policies and programs of the General Plan because circulation, drainage, water, sewer, agricultural buffer and conservation/open space considerations have been adequately coordinated. 2. The proposed Neighborhood Plan will not adversely affect the public health, safety and welfare or result in an illogical land use pattern because Subarea 1 adequately provides the necessary utilities, circulation and infrastructure to accommodate future development of Subarea 2. 3. The Neighborhood Plan is necessary and desirable in order to implement the provisions of the General Plan. RESOLUTION N0.4040 PAGE 2 NOW, THEREFORE, BE IT RESOLVED Grande hereby adopts Neighborhood Plan Neighborhood Plan, a copy of which is Department, based on the above findings. that the City Council of the City of Arroyo Case No. 04-001, approving the East Village on file with the Community Development On motion by Council Member Amold, seconded by Mayor Ferrara, and by the following roll call vote, to wit: AYES: Council Member Amold, Mayor Ferrara, and Council Member Costello NOES: Council Members Guthrie and Fellows ABSENT: None the foregoing Resolution was adopted this 9'" day of October 2007. RESOLUTION NO. ~/d~{O PAGE 3 TONY M. FER(iA6G4. MA' ATTEST: KELLY W~TMOI~, CITY CLERK APPROVED AS TO CONTENT: S ADAMS, CITY MANAGER APPROVED AS TO FORM: ~~ / /~-- TIM THY J. C EL, CITY ATTORNEY EXHIBIT A Of pRROYOC 9 F xCglM~~iE 72 ~ O o ~~/~ m //~~~j~ o~ iwa ~ ~I P East Village Neighborhood Plan October 2007 TABLE OF CONTENTS IV. Introduction Neighborhood Plan Location and Setting 3 Existing Environmental Setting 3 Background 3 Summdry of Neighborhood Plan Subareas 4 General Plan 5 Neighborhood Plan Proposals --- Subarea 1 Purpose and Objectives 5 Archeological and Biological Conditions 6 Architectural Design Guidelines 6 Land Use and Property Development Standards 6 Access, Circulation and Parking Standards 7 Traffic Impacts 8 Green Space 8 Agricultural Buffer Zone 8 Fences, Walls, and Special Entry Features 9 Water, Sewer, and Utility Facilities 9 Water Supply System 9 Sanitary Sewer Collection, Treatment, and Disposal 9 Off-site and On-Site Drainage 10 Creek Side Path 10 Inclusionary Housing 10 Neighborhood Plan Proposals---Subarea 2 Considerations for Subarea 2 11 Implementation and Administration Entitlement Requests i I Proposed Phasing of Development in Neighborhood Plan Area 12 Special Conditional Uses 12 Administration and Implementation of the Neighborhood Pian 12 -1- S \Conmunity DevelopmenC~PROJECTS`:NPtChercy CreeMDCAtCC 10-09-C7\Neiyhborhood Plan 10-09-07 Final.doc LIST OP ATTACHMENTS Attachment # 1 Attachment #2 Attachment #3 Attachment #4 Attachment #5 Attachment #6 Attachment #7 Attachment #8 Subareas Existing Ownership East village Conceptual Neighborhood Plan General Plan Water Supply System Sewer System Storm Drainage System Drainage Strategies and Options -2- S:`,Corn:nunity DevelCpment'~:PROJECTS`:NPlChen Creek'~.GCA`:CC 70~C9-0T~Neiyhbcrhood Plan 10-05-u7 FinaLduc Introduction Neighborhood Plan Location and Setting The Easi Village Neighborhood Plan area is comprised of approximately 22 acres in fourteen (14) separate parcels. It is located east of the existing Noguera Court subdivision, north of the East Cherry Avenue extension, and bounded to the north and east by Anoyo Grande Creek. Currently, there are only plans to develop the western nine (9) acres, called Subarea 1. The development in Subarea 1 is proposed by a partnership between Creekside Estates of Arroyo Grande. Subarea 2 consists of the remaining parcels to the east. Refer to Attachment # 1- Subareas, and Attachment #2-Existing Ownership. Existing Environmental Setting The entire southern edge of the Neighborhood Plan area borders the Dixson Farm, which is an active agricultural field and is subject to a 130 ft. agricultural buffer. Arroyo Grande Creek forms the border to the north and east, which requires a minimum 25-foot setback from the top of the creek bank. Most of the developable portion of the Neighborhood Plan area is level to slightly sloping in the direction of the creek. Subarea 1 has three houses and is dotted with non-native walnut trees. Subarea 2 is developed with a mixture of homes on large lots. Other vegetation in the area includes various fruit and avocados trees, as well as some palms. The creek area contains a variety of native and non-native plant species. Background The developers of Subarea 1 began to research and implement the details of the City's Neighborhood Plan requirement after acquiring the Stillwell property. These requirements were focused on developing a cohesive strategy for the current and future development of this area This concept worked well with the goal of engaging the community in the planning process. Drawing from past experiences, the developers of Subarea 1 believed that the community surrounding the proposed development could provide valuable input that can help shape the design aspects of the project. With the help and vision of the neighbors, a community based concept has been developed. The public outreach process was initiated by having the developers walk door to door in the neighborhood. They introduced themselves, briefly explained their goals, and distributed a "Hello Neighbor Letter" and reply card. The requirements for the Neighborhood Plan were easily incorporated into the development's public outreach effort, allowing both to proceed concurrently. The developers compiled the suggestions and concerns posed by the community regarding both the Neighborhood Plan and the proposed development. These became the topics of three community meetings that were held. To help facilitate these community meetings, a planner from RRM Design Group was present and active, as well as City staff from the Community Development Department. The first neighborhood meeting engaged the property owners within the entire East Village Neighborhood Plan area. At this meeting, topics were discussed that affected the Neighborhood Plan, such as east-west collector alignment, agriculture buffer, and density. The layout and vision for the site was also discussed. For the second community meeting everyone that returned a reply card was invited, as well as everyone in the immediate neighborhood sunounding our development. This meeting focused on how the site would interact with the existing neighborhood to the west. Traffic, drainage, and site layout were all discussed. Following the second meeting, four alternative concept site plans were generated in response to the community's suggestions. These drawings were presented at the final community meeting and the pros and cons of each design were discussed. -3- SiCom!nunily DevelopmenN:PRUJECTSWP'~Cherry CreeklUCA;CC 10-C9-O7tNeiohborhood Plan 10-0°-07 Final.doc The preferred concept plan for Subarea 1 was prepared for review and approval by the Planning Commission. The final plan for Subarea 1 was revised several times after hearings and extensive public input. Modifications were made to the plan to address comments received during the hearing process. Summary of Neighborhood Plan Subareas Subarea 1 is approximately 9.0 acres and is being processed as a Planned Unit Development, bringing the zoning into conformance with the 2001 General Plan. The land use designation of medium density single-family residential as specified in the 2001 General Plan enables a density of 4.5 units per gross acre, or 40 units for the nine acres. Based on the latest plans submitted to the City at the time of review of the Neighborhood Plan, a total of 30 lots are proposed at a density of 3.3 units/acre. The three existing homes in Subarea 1 will be placed on lots within the new subdivision. Subarea 2 is approximately thirteen (13) acres and has no current plans to develop. The adoption of the Neighborhood Plan and a Development Code Amendment will bring Subarea 2 into conformance with the 2001 General Plan with a zoning of 4.5 units per gross acre. Conceivably, this would allow a total of 57 units within Subarea 2 without taking any site constraints into consideration. The future development in this area will be subject to additional review by the City as development proposals come forward. At the request of the Planning Commission, Mark Vasquez of Design Graphics prepared a conceptual design of how Subarea 2 could be subdivided. Once the restrictions of a 130' wide agricultural buffer, 25' wide creek setback, and sensitive riparian areas are removed from the total acreage, it is estimated that about 8.5 acres of the site remain as potentially buildable. The table below summarizes the size and ownership of all existing parcels, the allowable density of each parcel for SF zoning based on gross acreage, and a density estimate for each parcel based on site constraints and conceptual lot layout as illustrated in Attachment #3 (note that there is no guarantee that the lots depicted on the conceptual plan can or will be approved in the future). Calculated constraints within Subarea 2 include 81,870 square feet of agricultural buffer and 104,000 square feet of sensitive creek area (4.27 acres total). Existing 10 Parcels Existing Residences Existing Parcel (s.f. est.) SF Density (4.5/gross acre SF Concept Layout' A: Janowicz 1 unit 14,586 2 units 1 unit B: Titus 1 unit 12,106 1 unit 1 unit C: Loone 1 unit 60,333 6.2 units 4 units D: Estes 1 unit 87,026 9 units 8 units E: Harrison 1 unit 12,882 lunit 1 unit F: Janowicz 2 units 30,630 3.2 units 2 units G: Janowicz 1 unit 43,513 4.5 units 4 units H: Summerfield 1 unit 28,115 3 units 2 units I: Caldwell 2 units 78,541 8.1 units 4 units J: Miner 1 unit 188,083 19.4 units 10 units Totals 12 units 12.77 acrest 56 units maximum° 37 units (2.9 du/acre -4- S:~Corn;nuniry Devetopmenh:PROJECTS'~,NPtCherry Creek'~.DCA'~.CC 16-09-07\NeiuLuorhooC Plan 7C-09-07 r-inal.duc a The attached Subarea 2 concept plan for SF zoning (see Attachment #3) is provided to show the realistic development density for Subarea 2 based on lot size and area constraints. Using the General Plan land use density of 4.5 du/acre and individual property constraints, the development potential is significantly less than using gross acreage. The Development Code does not allow rounding up on densities, therefore fractional units were not rounded up. A summary of the two Subareas is as follows: Subarea Maximum Allowable Units Proposed Units Jul 200 Existing Homes Likely Additional Units 1 40 units 30 units 3 homes 27 units 2 57 units n/a 12 homes 25 units Summa 97 Units 30 units 15 Homes 52 units Note: Although the General Plan would allow a maximum of 97 units within both Subareas, the total unit count is likely to be below the maximum density allowed given the various site constraints. Approval of this Neighborhood Plan restricts Subarea 1 to 30 units. Future approvals within Subarea 2 will be restricted to the allowable density within that Subarea. Unused density is not transferable between phases or between individual development proposals. Refer to Section IV, Implementation and Administration, for a list of approvals that will be required for each Subarea General Plan The City of Arroyo Grande 2001 General Plan identifies the property as NP or Neighborhood Plan (refer to Attachment #4-General Plan). The text of the document includes the following policy relative to what should be included in a Neighborhood Plan: Policy LU2-7 The 21+/_ acre area south of Arroyo Grande Creek eost of Tract 409 (Noguera ParkJ, and north of E. Cherry Avenue designated Single-Family Residential -Medium Density (SFR-MDJ is subject to a requirement for a neighborhood plan to coordinate street, drainage, water, sewer, agricultural buffer, creek side frail, and conservation/open space consideration prior to approval of any subdivision or parcel map. Sections II and III address the coordination of the above concerns. II. Neighborhood Plan Purpose and Objectives Very high goals have been set for the 22-acre East Village Neighborhood Plan. This area is one of the last developable properties in the Village area and should reflect all its best attributes. Feedback received from the community has been an invaluable tool in preparing the Neighborhood Plan. The collective vision of the community was to have a quality neighborhood that incorporated the historical Vandeveer residence, the existing Stillwell residence, and created apedestrian-friendly community that incorporates open space. -5- S^:Co:n;nunily DeveleumenP,FROJECTSWF'lCherry Creek~UCA`~.CC t~ ^y-Or~NeiyhborhooG Plan 10-09-07 Final.doc Archaeological and Biological Conditions Given the unique creek side setting of this project, Phase 1 and Phase II archaeological studies and a biological survey were performed for Subarea 1. The archaeological studies included both pre-historic and historic investigation. The archaeological studies concluded that the site contained limited pre-historic archaeological resources. Historic resources include the existing stone house (Vandeveer). The area in front of the house, primarily in the creek conidor; contains historical trash dumps. Additional sub-surface testing and/or monitoring by an archaeologist will be necessary prior to the construction of the storm drain outfall into the creek area. An archaeologist will also be required to review the plans prior to construction to address any potential changes. Separate Archaeological studies will be needed for the parcels within Subarea 2 as development proposals are submitted. The biological survey for Subarea 1 revealed limited concern of sensitive biological resources with the exception of the riparian corridor along the creek. Provided that construction in or near the creek corridor is minimized, there should be Limited biological impacts. The one exception is the outfall of the storm drainage that will discharge into the creek. Mitigation will be required in accordance with standards and requirements by the Army Corps of Engineers and/or the State Department of Fish and Game. Extensive environmental monitoring by a qualified biologist will be required in accordance with the approved environmental document. The complete reports and mitigation requirements are on file with the City of Arroyo Grande. Separate Biological studies will be needed for parcels within Subarea 2 located adjacent to the creek as development proposals are submitted. Architectural Design Guidelines A portion of this property lies within the existing historic design overlay district (D-2.4). As a part of this district, specific architectural guidelines and standards are provided. These are contained in a separate document that is subject to review by the City's Architectural Review Committee (ARC). The project includes the standards that would require ail of Subarea 1 to be consistent with the previously adopted Village Design Guidelines. This will require that the homes built in the neighborhood are of a cohesive community style. All architectural styles will be allowed, as specified by the historic district design guidelines, except Spanish Eclectic. To establish a high level of craftsmanship, minimum standards for building materials, such as roofs, siding, and driveways, will be specified. Restrictions on architectural style will promote an attractive streetscape and community interaction. Architectural style of homes proposed within Subarea 2 will be reviewed when development proposals are submitted. Land Use and Property Development Standards Development within the Neighborhood Plan Area will be subject to the standards and requirements of the SF district of the City's Development Code. An excerpt from the Development Code referring to the SF District is contained below: 16.32.020.E. Single-Family Residential (SFJ Disfrict. The primary purpose of the SF district is to provide for residential development on common sized suburban lots. This disfrict is intended as an area for development of single- familydetached residential, small lot single- family detached residential, and mobile homes at a maximum allowable density of 4.5 dwelling units per gross acre. Access, Circulation and Parking Standards There will be two public access points for the Neighborhood Plan. One connection will be at the intersection of East Cherry Avenue and Branch Mill Road. The second connection will be located at the extension of Myrfie Street. These connections provide convenient access to City streets and helps split trips on both East Cherry Avenue and Myrtle Street. -6- S:~~.ComrtwniTy DevelupmenP.PROJECTS~.NP\Chern~ CreeklDCA':.CC 10-09-071Neiyhburhood P12n 10-09-W Final.doc East Cherry Avenue Extension: East Cherry Avenue will be extended as a public street through Subarea 1 to provide access for Subarea 1 and future development in Subarea 2. The improvements will include a 32 foot wide paved roadway, curbs on both sides, with parking and a sidewalk on the north side within Subarea 1. The extension of East Cherry Avenue from the intersection of Branch Mill Road should incorporate the existing, dirt, 15' strip immediately north of the Dixon Ranch property. Extension of East Cherry Avenue east of Subarea 1 (into Subarea 2) could include a reduced road way width at the discretion of the City. To address public safety concerns, a minimum road width of 20' shall be provided, or as otherwise required by the Fire Code. East Cherry Avenue Entrances: Within Subarea 1, East Cherry Avenue entrances will be identified with an accented pavement roadway with two Travel lanes, both 12 feet wide. Both sides of the roadway will consist of a concrete curb, gutter, landscape border, and sidewalk. Entrances within Subarea 2 will be subject to separate review. Myrtle Sheet Enhance: Myrtle Street will be extended to form a second entrance to the neighborhood. The existing cross section of a 40 foot wide paved roadway will be transitioned to a 36 foot wide paved roadway as it enters into the subdivision. This will allow for parking on both sides. Before The historic Vandeveer residence, Myrtle Street will turn south, out of its current alignment. Internal Streets: The internal streets provide access to the majority of lots in this community. Due to low traffic volume, community input, and space considerations, a 36-foot wide pavement roadway with concrete curbs and gutters on both sides is proposed within Subarea l .The internal streets will include detached sidewalks with trees lining both sides of the road. Narrower, tree-lined streets will help create a more pedestrian friendly neighborhood. To address public safety concerns, a minimum road width of 20' shall be provided for roads within Subarea 2, or as otherwise required by the Fire Code or the City. Emergency Aceess: To provide additional emergency access between Subarea 1 and Subarea 2, a 20' wide emergency access easement is being provided as part of the plan submittal for Subarea 1. This emergency access easement will need to continue into Subarea 2 at the time of development of the Looney property. Traffic Impacts Higgins and Associates studied the traffic impact to the surrounding neighborhood as a result of development. Two studies were performed: Existing conditions plus Subarea 1 build out, and existing conditions plus Subarea 1 and 2 build out. The study concluded that the impact under all conditions would be less than significant, and no segment or intersection would experience a decrease of LOS (level of service) in the first study. Both Myrtle Street and Garden Street (north of Myrtle Street) will notice increased traffic due to the fact that they are currently very lightly used. This impact is considered less than significant, and both streets maintain a TIRE (traffic infusion on residential environment) neighborhood quality of life level A. Therefore, project impacts to these streets will not be significant. The complete traffic study can be found on file with the City. Green Space Green space was central to the design process, with much of the community input supporting green space and open space within the Neighborhood Plan. Within Subarea 1, green space was achieved by providing: (1) a large landscape buffer along Cherry Avenue, (2) a vegetated channel through the center, and (3) open space next to the creek. Green space within Subarea 2 will include the creek channel, the 25' creek setback and the 130' wide Agricultural Buffer. -7- Agricultural Buller Zone The use of an agricultural buffer is a central feature of both Subareas. The site borders the Dixson Ranch to the south, which is an operational farm and in a permanent agriculture preserve. Separation of these two diverse land uses ensures a high quality of life for the residents of this community, as well as the continued productivity of the neighboring farmland. Some of fhe issues this buffer addresses are farm operation noise and lights, airborne drift (both chemical and dust), crop pilferage, and domestic animal intrusion. The buffer will extend from the edge of the Dixson Ranch property line for 130 feet to the edge of the first residential property line. The buffer width will apply to both Subareas for new residential units only. Contained within the buffer will be features that aid in the isolation of the two land uses. In Subarea 1, the buffer is further enhanced by the provision of a masonry wall. There will also be a fence on the south side of the East Cherry Avenue extension to discourage crop pilferage, animal intrusion, and block any farm operation light sources. Within Subarea 1, a landscaped area ranging from a minimum of 60 feet wide to a maximum of 80 feet wide will be provided. The City's Development Code requires a minimum of a 20-foot wide landscaped strip. The total buffer width is 30 feet larger than the minimum 100 feet required by the City's agricultural buffer policy. The buffer will be planted with several rows of trees and tall shrubs. This area will aid in mitigating any airborne drift. After the landscape buffer, a 6-foot high masonry wall atop a 2-foot tall berm will act as an acoustic shield. Behind the wall there will be 5 feet before the edge of the first habitable structure. Fences, Walls, and Special Entry Features These features will be incorporated into this site in different forms to enhance privacy, separate residential and agriculture land uses, and to establish fhe entrance to a distinctive community. Within Subarea 1, the agricultural buffer along East Cherry Avenue will contain a wall described above. Elsewhere in the development, walls and fences will mainly act as privacy and site enhancement. A 6-foot high steel picket fence will be provided for lots that back up to the vegetated drainage channel. A 6-foot wood fence will be used for the internal fencing where privacy is needed. A 6-foot high wood rail fence with hog wire will be provided to restrict access to the agricultural field across the street. It will also provide protection for the drainage inlet where water drops underneath East Cheny Avenue. Within Subarea 1, the main entrances to this development will be located on the East Cherry Avenue extension. Street trees will be planted to line the entry roads, while enhanced paving and decorative landscaping will be provided to establish a sense of entry. Fencing, walls, and entry features within Subarea 2 will be reviewed separately upon time of submittal of development proposals. Water, Sewer, and Utility Facilities Master Plans for Water, Sewer and Storm Drain facilities are attached. These plans are based on the likely development scenarios within the two subareas. The approval of the Neighborhood Plan does not "lock in" or approve the layouts within each Subarea. Individual proposals will be reviewed separately by the City. Water Supply System The City of Arroyo Grande supplies water service within its City limits (including the Plan Area). Municipal water is provided by the Lopez Reservoir and, in part, by the Santa Maria Groundwater Basin. Historically, the City has had good water quality. -8- S9Community Deve!epmenP,PROJECTSINP''~Cherrv Creek`.DCAtCC 10-09-0%\Neiyhborhood Plan 1G09-W Final.dac The Plan Area will utilize three points of connection To the existing City of Arroyo Grande Water Supply System including connecting to an existing 16" water line on Branch Mili Road and a 6" water line on Myrtle Street. Water system design criteria shall conform to the City's standards. The existing and proposed Water Supply System can be found in Attachment #5. Sanitary Sewer Collection, Treatment, and Disposal The City of Arroyo Grande provides sanitary sewer collection services connecting to a trunk line leading To a 7.6-acre sewer treatment plant near the Oceano Airport. This facility is operated by The South San Luis Obispo County Sanitation District. Sewer service in the Plan Area will be provided via a new connection to the East Manhole at Pacific Railroad Way. This is a new connection as adjacent development was determined to have insufficient capacity. Design criteria for the sewer collection system shall conform to City of Arroyo Grande standards. The proposed Sewer System can be found in Attachment #b. Off-Site and On-Site Drainage The site is located in the downstream end of the Newsom Springs drainage area. In low-flow situations, drainage flows around the edges of the farm fields (south of the Neighborhood Plan area) and through a system of earthen ditches to Arroyo Grande Creek. In higher flow situations, or a 100-year storm, the drainage will sheet flow across the farm fields and continue across the site to the creek. In the past, large storms have caused flooding to surrounding neighborhoods. To address flooding and other drainage issues in the area, development of Subarea 1 has been requested to facilitate the installation of a 48-inch wide pipe adjacent to the Dixson Ranch farm (along Branch Mill Road). The wafer will then flow under the extension of East Cherry Avenue into the vegetated channel. The channel will assist in cleaning out the sediments and other contaminants. After the water leaves the vegetated channel, it will outfall into Arroyo Grande Creek. The proposed Storm Drain System can be found in Attachment #7, and Drainage Strategies and Options are included in Attachment #8. Creek Side Path According to the General Plan, the feasibility of a creek side pedestrian path must be explored. This topic was discussed at a neighborhood meeting, and iT was intensely rejected by the surrounding residents. A creek side path from downtown to the site would have to traverse approximately 15 existing residential properties bordering the creek. It became clear talking to neighbors that they would not tolerate a path through, or adjacent to, their private yards. Furthermore, the examination of aerial photographs revealed that in many instances there was not even room to weave a path through these properties. Although there are fewer property owners to the east of the site, the same issues are present, making a path to the east not feasible. The MyrTle Street right of way currently extends to the east end of the Neighborhood Plan area, although it drops into the creek bank toward the east end of Subarea 1. The banks of Arroyo Grande Creek are very steep, and constructing a path in this environmentally sensitive area would be very difficult. Due to the existing ownership patterns, the location of the creek bank, and the opposition from affected property owners, iT has been determined that a creek side path would be infeasible. Inclusionary Housing Inclusionary housing is a very important part of any new development. It creates diverse neighborhoods and promotes a healthy demographic. Inclusionary housing within Subarea 2 will be subject To affordable housing requirements in affect aT the time of submittal of individual development proposals. -9- S:+Community DeveloprnenP:PROJECTS'~.NP`,Cherry GreeMDCA`~CC 10-09-C7\Neighbonc~oC Plan 10-0°-0% Final.duc Neighborhood Plan Proposals -- Subarea 2 Considerations for Subarea 2 The developers of Subarea 1 have no current ownership or financial interest in any property contained within Subarea 2. However, there are important considerations regarding the impact development in Subarea 1 will have on future development of Subarea 2. Access and road alignment in the Neighborhood Plan area were both topics of community meetings. It was decided that the only viable access was to continue East Cherry Avenue in its existing alignment. This would be improved to the end of Subarea 1 when it is developed. This would enable its future path to be determined to suit future development. Utilities, sized to service the future development of Subarea 2, will be brought to the end of Subarea 1 during its development, The zoning proposed by the 2001 General Plan is SFR-MD and would be enabled by this Neighborhood Plan. This would allow for subdivision up to a density of 4.5 units per gross acre conforming to the City's Development Code. It is important to enable this zoning at this time to prevent any future development conflicts. Emergency service or fire access can be provided via a private driveway and public easement on the west side of Subarea 1. IV. Implementation and Administration Entitlement Requests A variety of approvals are needed in order to implement the Neighborhood Plan. A summary of these entitlements is described below. Development Code Amendmenh. A Development Code Amendment rezones the property from its current Residential Rural (RR) non-conforming zoning to Single-Family Residential (SF). The SF zoning allows for development of single-family homes within the Neighborhood Plan at a maximum density of 4.5 units per acre. Neighborhood Plan: The adoption of this Neighborhood Plan further defines and restricts what can be developed within each Subarea. The standards and requirements within this Neighborhood Plan will supplement the standards contained within the SF zoning district. Land Division: In order to subdivide property, a tentative subdivision map or parcel map must be submitted for review. The City of Arroyo Grande shall confirm that it complies with the standards and requirements of the Neighborhood Plan. A vesting tentative subdivision map has previously been submitted for Subarea 1. Future subdivision proposals will likely be submitted for Subarea 2. The Subarea 2 proposals will be subject to separate review by the City of Arroyo Grande at the time of submittal. Environmental Review: Environmental review in accordance with the California Environmental Quality Act (CEQA) will be required for each development proposal. Future development proposals in both Subareas will be subject to separate environmental review when individual proposals are submitted. Proposed Phasing of Development In the Neighborhood Plan Area Development will commence in Subarea 1 as soon as the Neighborhood Plan is adopted. Individual homes are anticipated to be built primarily by a single home builder/developer. Development of Subarea 1 is estimated to be largely completed within 2.5 years. Once the Neighborhood Plan is adopted, development in Subarea 2 could begin at the landowner's discretion, pending permit approval by the City. 10- SaCommunity DevelownenCPROJECTS`~.NP\Cherry Creek~DCA';CC 70-09-07Weiyhborhood Plan 10-D9-07 Fin2l.doc Speelal Conditional Uses The Neighborhood Plan enables the zoning specified by the 2001 General Plan. Certain conditional uses such as daycare, churches, and private schools may be granted subject to a Conditional Use Permit. It is the City's responsibility to approve, conditionally approve, or deny such requests in accordance with the zoning of RSF-MD. Administration and Implementation of fhe Neighborhood Plan Subarea 1 will require a Homeowners Association (HOA) to administer maintenance of open spaceand common areas, as well as the Covenants, Conditions, and Restrictions (CC&Rs). The developer of Subarea 1 will submit proposed by-laws and articles of incorporation for the HOA and CC&Rs for the State of California Department of Real Estate and the City of Arroyo Grande Community Development Department and City Attorney review and approval. -11- S:'+Comm•~nity DeveicpmenCepRO!ECTS~.NP\Cherry Creek~DCA':CC 10.09-07\NeiyhborhwU Plan 10-09-W Final.doc Y ~• ~ ~~ :. ;.~ i .~ y ~ i .. x ~' .* ~. y .~ •,~, f wp a.' ~ ` _~ ~~ t 4 .R • ~. ` ,L ~ ~t~ ~' _ °- '~ .' '~' ~_ .:. ~ c '; • r~ \ I I\~ . C,.•.~ r. ~~ L~4~ 3 '"~~ a .~ ;;, ~ -~ i~ .ji'). ~ fir. ' . ~`_ ~, ~' A S.µ _. .` s, : ,~ <,; . -.X D r y_ ~'~ t~w C..y ~ ~: i~ 4 ti . . ~~ ~` r*. t •, +; ..>--`5,'414' x r ESP'ss i :~~1 T C d V W Q i~ w ~. d ~' ', a ~'~ ~ .. ~ . ?p '. w~ ~ ':ir Attachment #2 ;~1 ~~ ~. ;: ; ~ S: w ~•F,~ G 111 c „1~ pn k y . ~R! N/n VY CO b /~ ~V Attachment #3 ' a ~ 'Y t~fti~[~f~ .G =.. , F '. ~PCCPCCCt~ ~E ~:~ 1 ~a~~~~~3a ~~ i~~ ! N d w ...~. ~. ~. ~~ ~~-, e ~~ ~, ~.. Q s3 O a~ TO ~ S ~~ ~~ O ;~~ m l~Y~ _ E ~;~ H W z~; Z ~,~„ ~~ J `§ ~~~: H ,~ " ~ ~~3, s W ~` V sp' Y e^~ ? ~* O V ~ W Q y~ J J H Q ~~ w Attachment #4 ~a ~GR~CULTUR RE r>^, V J L ~+ k f~~ ;011 ~~I• L__ Attachment #5 ®i N N W W Attachment #6 ,_ c~ L ~Q~ A ~ ~ 8 ~~ j°~ e 1~ ~ ` ~ ® $ ®~ w N t L .fl t .~ Z N W ti c m R w Q N C .~ L 0 s~ ~li~~ ~~j~4Cl Attachment #8 Drainage Strategies and Options The following drainage strategies and options were prepared by Mark Barnett of the Natural Resources Conservation Service (NRCS). Six (6) alternative strategies are outlined for each private road, with four potential options for each alternative strategy. Some strategies will require cooperation between multiple property owners to facilitate grading of the private roads. The Subarea 2 area is in Drainage Zone "B" of the City's Drainage Master Plan. The alternative strategies that allow draining to the creek are consistent with the City's Drainage Master Plan. However, it has been determined that drainage options involving directing runoff to Arroyo Grande Creek or the use of surface basins are not desirable and should not be allowed with future development. These iwo (2) drainage options are therefore considered the lowest priority on the list of drainage solutions and options for the area. Strategies requiring on-site retention shall be sized in accordance with the retention criteria identified in the City's Drainage Master Plan. United States Department of Agriculture 545 Main StrEBt SUlte B-1 '11I~\`'I R C1 aarurti Morro Bay, CA 93442 O 1 L 1 \~~/ Rciour(es Ccnservaliun (805) 772-4391 SF'°"" FAX (805) 4772-4398 December 7, 2007 City of Arroyo Grande Community Development Department 214 East Branch Street Arroyo Grande, Ca 93420 Attention: Steve Adams, City Manager Dear Mr. Adams, As you know, the City of Arroyo Grande has asked that I develop a table of potential storm water drainage strategies to be implemented in Sub Area 2 in the event Sub Area 2 is allowed to further subdivide and develop. Please keep in mind, that at your request, this is not an in depth analysis but a quick overview of concepts and ideas. Hydrology An in-depth hydrological analysis was not performed. The storm water runoff was calculated for both the 10 yeaz-10 minute and the 100 year-10 minute storm events on developed, small (8,000 sf) and lazge (13,000 sf) lots. The runoff coefficients and storm intensities are based on data from the San Luis Obispo County Department of Public Works Hydrology section of the Standazd Constmction Drawings. Soil According to the San Luis Obispo County NRCS Coastal Soil Survey (1984), the soil type within Sub Areas 1 & 2 is predominately a Mocho Silty Loam. The soil profile and properties are shown in Table 3. As one can see, at a depth of 45"-60" the soil profile is stratified sand to gravelly sand with a permeability of between 6"/hr and 20"/hr. Although a percolation test should be performed on each lot, this data suggests sub azea 2 is a potentially favorable site for retention basins or vaults as well as ground water recharge. Strategy Based on the potential for each lot to construct ground water rechazge vaults, I did not look at pre-developed runoff versus post-developed runoff, but decided to focus several of the strategies on retaining all post-developed runoff fora 10 minute-100 year storm event (the worst case scenario). The thought process suggests that if each lot has the potential to retain a 10 minute- 100 yeaz storm event, then individual retention vaults or basins would be acceptable to the City for even the most stringent drainage policy. The Natural Resources Conservation Service works in partnership v,Mh the American people to conserve and sustain natural resources on private lantls. An EQual OpPOnuniy Employer There are three main design strategies: A neighborhood approach where property owners address storm water runoff as a collective effort such as in strategy 1 in Table 1 for both Lierly and Miner roads. Here the drainage infrastructure consists of the entire neighborhood agreeing to grade the roads toward Cherry Avenue. The problem with this approach is that not all landowners will be ready to develop their properties, and thus pay for infrastructure, at the same time. • All landowners are responsible for the routing of the runoff from their individual lots to an acceptable body of water or drainage structure. An example is each lot constructing ground water recharge vaults as in strategy 3 for both roads. • The third strategy is a combination of the two above where some landowners may choose to combine resources and share the costs of drainage infrastructure for adjacent lots while other landowners construct projects on their own. The drainage strategies shown in Table 1 are presented in no particularly order. As shown, each strategy or drainage approach should be implemented concurrently with Low hnpact Development (LID) projects. Examples of LID's are presented in Table 2. In Conclusion I have tried to present a set of drainage strategies that offer flexibility and flood protection to the landowner and City. Please keep in mind, to finalize the feasibility of the strategies presented will require at a minimum a topographic survey and percolation testing. With that said, in my opinion, the best approach is likely to be one where the City agrees to a grading plan for each entire road and allows each landowner to have the flexibility to construct a combination of LID projects that will meet the storm water runoff requirements of the City. Thank you for the opportunity to be of service. Sincerely, Mark Barnett, P.E. MRCS Civil Engineer 545 Main Street, Suite B-I Morro Bay, Ca 93442 ~RAINA6E OPTION 1 DRAINAGE OPTION 2 x ~ ~ I~ 0 'I~ 3 ~ ~ a ~ o .. 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O ^ 3 UI O D 3 O O ij •--• V O a O O Q V ' ,~ ,~. ~ Ul iii 3 g m € n 0 3 VI ~ m ~ rp + ~ N i'' n rp w ~ H h ,• • rp M h ~ e'F • rD I i ~ ~ ~ v Q o -- ~ n O O fF Q -_- ~ 3 a = < 3 v = h Q h h Q .. O ~ N N I ~ O Q ~ W ~ W O Q Q I ~ S j ~ S i 0 O W ~ N C ~ 3 I ~ _ °' O m ~ I ~ 3 < II ~ O N ~ O ~ ~ 3 II N 3 ~ ~. m ~ n ~ n " i w n ~ ru ° ~ ~ o ~ n n I_- ~ ~ 1 ° ~ ~ 5 ~ (~ {{~~ p qq Sw+ BQS~n G pyyhy Y.>k Pwref; _ q Ola~n N¢i Panetl _ L ~ ~ Hydrographs o,.,,., bp~Hd Nlvsla'..^az [am~ Fruwae (wnsrx'irn llctzt Hydrology Calculations Given: Total Area of Sub Basin 2 (acres) = 12.7 Area of AG Buffer (acres) = 1.6 Area of Creek Buffer (acres) = 2.4 Developable Area (acres) = 8.7 Using Rationale Formula and Based on County Runoff Coefficients for Developed Areas, Table 1 (drawing FI-3), Soil Type = C Slope<= 2% Based on Couhty Drawing H-1, Average rainfall = 18" Design based Acwrding to Table 3 of County Drawing H-4, The 10 yr-10 min storm = 2.8 inches/hr The 100 yr-10 min storm = 4 inches/hr Assume: Large Parcel: Area = Runoff Coefficient = Small Parcel: Calculate total volume required to retain entire storm event: for Detention Length of 36' Pipe (ft) = 28 for Detention Area = Runoff Coefficient = Large Parcel Size Storm Event 10 yr-10 min 100 yr-10 min Runoff Flow Rate (cfs) = 0.33 0.48 Volume (cf) = 200 288 Length of 24" Pipe (ft) = 64 92 13000 sf 0.4 8000 sf 0.45 Small Parcel Size Sloan Event 10 yr-10 min 100 yr-10 min Runoff Flow Rate (cfs) = 0.23 0.33 Volume (cf) = 138 198 Length of 24" Pipe (ft) = 44 63 for Detention 41 Length of 36" Pipe (ft) _ for Detention 20 28 t E o u 0 u o -c a a o ~ ~ `o ; ° c o ; _ ~$ hu 1 ~- 3 E ~ C "p O ` ~v ~ ' - E .~+ a r C ; o ~ ~ °o - a 0 ~ L u E B v a y ++ a Ln 0 4. ~ ~ o ~ d L N da V N w Q k 0 0 v +' L d W E L N d 3 C E 0 L 0 4- ~~ o ~ .E cn = d F Vl O~ Z N E C Y/ 1 \ ~E H ~ 1 ~ ~~ Z ~ e c ~ I tV .~ i- I I o '. O ~ ~~ d r ~ i~ N ~ t 3 p~ c c E £ 5. n n 3 ~ O o ~ U l0 C 2 W ~ )( 3 i .~ E envoi ° t c c rn E _o `3 '~ ~} 3 3 ''3 -~ xew yoS ~ ~ '~ edo~s ~euipn~i uo~ ~ -s ue m m "~ '~ `'~ ~ ~~ v c m c 1 E E r m O) m ~ .-. > ~ ~ l0 ~` C ~ ~ I U 10 N N ' ~ ~ m o v a o m E -rc m E m m m "' o c c yc y 0' a ~ o 0 o ~ 3 N 9 N 0 0 I \ C d I Z ~_ F U ''W^^ v~I X W fem.. ~ Z N Z O Q ~"' 0 O p~ C `o ami N m U L N U m c $~ N " ~i d c c W Z g m E V a t N 3 O~ 0 2 0 o C_ x D rn °-' .o ~ 3 N m do O~ 6 ~ ~ O ~ m ~ u o 4 .i N tD E v L W N_ d E m i Y ~` Mr y rt 3 { } i i ~,:t _ r ~ - +t i aj~~ ~ .a ~ ~ ~o " ~ ~ a ~w ~ a a ~t ~ n ~ o w ~ ~ Y~ e ~ ' ~ 8 °y ~ s - ~ ~ ~ ~~a, ~ . ~ ~ ~ a ~=g ~ w~~., s3~ ~ ~ ~ ~ ~ s s ay ~ E e µ ~~r V~f`t i ~ ~ ~ m ` o _r c~ o ~ a ~ ~ ~ U i r c E o > ~ l ~ e J N OFFICIAL CERTIFICATION I, KELLY WETMORE, City Clerk of the City of Arroyo Grande, County of San Luis Obispo, State of California, do hereby certify under penalty of perjury, that the attached Resolution No. 4040 is a true, full, and correct copy of said Resolution passed and adopted at a regular meeting of the City Council of the City of Arroyo Grande on the 9s' day of October 2007. WITNESS my hand and the Seal of the City of Arroyo Grande affixed this 11"' day of December 2007. KELLY VilETdl1ORE, CITY CLERK