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2010/12/07 City Council Resolution 2010-136RESOLUTION NO. 2010-136 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF ROHNERT PARK APPROVING A SPECIFIC PLAN AND DESIGN GUIDELINES FOR THE SOUTHEAST AREA LOCATED NORTHEAST OF BODWAY PARKWAY AND VALLEY HOUSE DRIVE (APN 047 - 111 -030) IN SONOMA COUNTY, CA WHEREAS, the applicant, Redwood Equities LLC, filed Planning Application No. PL2003 -031 SP proposing a Prezone, General Plan Amendment, Specific Plan, Tentative Tract Map and related certification of a Environmental Impact Report ( "EIR ") in connection with a proposed mixed -use community located southeast of the intersection of Bodway Parkway and Valley House Drive (APN 047 -111 -030) (the "Project "), in accordance with the City of Rohnert Park Municipal Code ( "RPMC "); WHEREAS, on November 16, 2010, the Planning Commission held a public hearing, reviewed the project proposal and recommended approval to the City Council; WHEREAS, pursuant to California State Law and the Rohnert Park Municipal Code, public hearing notices were mailed to all property owners within an area exceeding a 300 foot radius of the subject property and a public hearing was published for a minimum of 10 days prior to the public hearing in the Community Voice; WHEREAS, on December 7, 2010, the City Council held public hearings at which time interested persons had an opportunity to testify either in support or opposition to the proposal; WHEREAS, the City Council has certified the Final Environmental Impact Report prepared for the project; and has otherwise carried out all requirements of the California Environmental Quality Act; WHEREAS, the City Council has reviewed and considered the information contained in Planning Application No. PL2003 -031 SP for the proposed Specific Plan and Design Guidelines; WHEREAS, the City Council of the City of Rohnert Park makes the following findings: NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of Rohnert Park makes the following findings, determinations and recommendations with respect to the proposed specific plan: Section 1. That the above recitations are true and correct. Section 2. The City Council has approved the Final EIR for this Project, including adoption of associated CEQA Findings, Statement of Overriding Considerations, and the Mitigation Monitoring and Reporting Program, as described Resolution No. 2010 -134, approved on December 7, 2010 concurrently with the City Council's approval of this Resolution. Section 3. Findings. The City Council hereby makes the following findings concerning the Southeast Specific Plan proposed by Planning Application No. PL2003 -031 SP pursuant to. Rohnert Park Municipal Code section 17.06.390: 1. The specific plan or specific plan amendment is consistent with the city's general plan. Criteria Satisfied. The specific plan would implement the General Plan's goals for the Southeast Specific Plan Area as described in the Community Design Element. It would further implement the General Plan in that it would increase the City's existing housing stock and a proportion of units that are affordable. Under the proposed Development Agreement and specific plan, the project will comply with the goals and policies of the City's Housing Element by complying with the City's inclusionary housing ordinance. It would also develop the property with a mixed use component that is consistent with the goals and objectives of the General Plan for this area. The specific plan proposes to meet the goals of General Plan by providing for a variety of housing types including low density, medium density, rural estate and mixed use allowing attached housing. 2. The specific plan or specific plan amendment will not adversely affect the public health and safety or result in incompatible land uses. Criteria Satisfied. The specific plan is not expected to have negative impacts on the health or well being of project residents or occupants of the surrounding land uses. The proposed neighborhood is in character with surrounding neighborhoods and the planned community to the west. Single family residences will be located adjacent to the existing single family development to the north. Mixed use and commercial uses are planned in the southwest area of the site in proximity to the mixed use community of Sonoma Mountain Village. The project has been designed so that rural estate lots will be adjacent to rural Sonoma County lands to the west and it would be effectively buffered from the scenic corridor along Petaluma Hill Road. The proposed commercial development and recreational facilities would benefit existing residents in the area, as well as new residents of the project. 3. The specific plan or specific plan amendment provides the framework to phase and pace growth within the specific plan area so as to ensure completion of all necessary public facilities concurrently with completion of the specific plan; or, alternately, a statement of public policy consideration can be adopted and/or an exception granted in accordance with general plan policies GM -10, GM -I1, and GM -12. Criteria Satisfied. The project will be phased as shown in the proposed specific plan. Each phase of the project is designed to provide for adequate infrastructure and to be integrated with existing City public improvements, as described in the specific plan. The timing of the construction of public facilities will be paced to meet the needs of the development and is called out in the project's Development Agreement, which terms are incorporated herein by this reference. 4. The specific plan or specific plan amendment .identifies adequate financing mechanisms for the infrastructure and public facilities required to support the development. Criteria Satisfied. The project will be subject to the payment of fees to provide for and maintain public infrastructure such as Public Facilities Financing Plan fees to help fund off -site improvements, City -wide and Regional Traffic fees, Pavement Maintenance fees, Public Services Impact fees, and Maintenance of on- site Infrastructure fees. The public improvements will be funded through a Funding Mechanism such as a community facilities district. These fees and funding mechanisms are also described in the Development Agreement which is incorporated by this reference. On -site improvements shall be the responsibility of the developer. 5. The proposed specific plan is consistent with the planning and prezoning designation provided for the specific plan area, pursuant to Government Code Sections 65300 and 65859, or alternatively functions as prezoning for the unincorporated territory. Criteria Satisfied. The site will be prezoned "Specific Plan District (SP)," which is consistent with the direction of the City's General Plan. Therefore the proposed specific plan is consistent with the prezoning designation of SP which zoning designation shall become effective at the same time the annexation becomes effective. Section 4. A duly noticed public hearing on the proposed Southeast Specific Plan was held on December 7, 2010. NOW, THEREFORE, BE IT FURTHER RESOLVED, THAT the City Council does hereby adopt the Findings stated hereinabove and approve Application No. PL2003 -031 SP for the Southeast Specific Plan and Design Guidelines as provided at Exhibit A, in its entirety. DULY AND REGULARLY ADOPTED by the City Council of the City of Rohnert Park on this 7th day of December, 2010. ATTEST: ig '. n CITY OF ROHNERT PARK Mayor City �� AtIP0�8�, BELFORTE: AYE BREEZE: AYE CALLINAN: AYE MACKENZIE: AYE STAFFORD: AYE AYES: (5) NOES: (0) ABSENT: (0) ABSTAIN: (0) EXHIBIT A SOUTHEAST SPECIFIC PLAN City of Rohnert Park Southeast Specific Plan October 27, 2010 TABLE OF CONTENTS PAGE 1. INTRODUCTION A. Background and Plan Purpose 1 B. Planning Process 1 C. Specific Plan Contents 2 D. How to Use This Plan 2 E. Statutory Authority 3 F. Relationship to the General Plan 3 G. Relationship to Other Plans and Regulations 4 2. DESCRIPTION OF PLAN AREA A. Regional Setting 5 B. Local Setting 5 C. General Site Characteristics 5 D. Jurisdictions 7 3. LAND USE ELEMENT 19 A. Introduction 9 B. Land Use Policies 9 C. Land Use Designations 9 D. Land Use Designations Summary 13 E. Affordable Housing 14 4. DEVELOPMENT STANDARDS 15 5. CIRCULATION ELEMENT A. Existing Circulation 19 B. Roadway Classifications and Standards 19 C. Transit Service 19 D. Pedestrian and Bicycle Circulation 19 E. Projected Traffic Volumes 22 F. Emergency Vehicle Access 22 G. Roadway Phasing 22 SOUTHEAST SPECIFIC PLAN LIST OF FIGURES PAGE Figure 2 -1 Specific Plan Areas 6 Figure 3 -1 Conceptual Land Use and Circulation Plan 11 Figure 5 -1 Conceptual Pedestrian and Bicycle Circulation Plan 21 Figure 5 -2 Conceptual Phasing Plan 23 LIST OF TABLES PAGE Table 2 -1 SESPA Parcels 5 Table 3 -1 Permitted Uses 12 Table 3 -2 SESPA Land Use Program 13 Table 4 -1 Development Standards 16 SOUTHEAST SPECIFIC PLAN INTRODUCTION 1. INTRODUCTION A. Background and Plan Purpose The present document has been prepared in response to the City of Rohnert Park's Municipal Code Chapter 17.06, Article VIII, Sections 17.06.290 -450, SP- Specific Plan District. This chapter outlines the requirements for the preparation, adoption and implementation of Specific Plans in certain areas of the community. The Southeast Specific Plan area, the subject of this Plan document, was identified in the City's General Plan, as adopted in July of 2000 and amended in 2010. The purpose of the Plan, consistent with the aims of Chapter 17.06, SP- Specific Plan District, is to provide a vehicle for ensuring that this area of the City is master planned. It is also to ensure that the phasing and ultimate development of the property involved is consistent with a vision that is both compatible with the existing community and responsive to the vision of the General Plan. B. Planning Process As outlined in the aforementioned Chapter of the Municipal Code, there are two primary phases of activity that the Specific Plan process entails. The first of these is the submission of a Preliminary Application that is then followed with a Specific Plan, the subject of the present document. A Preliminary Application for the Southeast Specific Plan was submitted to the City of Rohnert Park in February of 2002. In preparing the Preliminary Application, the property owners, Redwood Equities, LLC, undertook the preparation of a variety of engineering and technical studies to both document the existing conditions on the site as well as to develop some preliminary concepts for the physical development of the land uses and activities established for this area in the General Plan; in addition, several meetings were held with representatives of the City of Rohnert Park to discuss the proposed Specific Plan. Upon completion of the Preliminary Application and presentation to the Planning Commission and the City Council, additional technical studies were undertaken as well as a process of interaction with representatives of the City of Rohnert Park to review more detailed information on the proposed development. Following the Specific Plan procedure, the present document was submitted to the City of Rohnert Park and a draft Environmental Impact Report was prepared. The present document reflects, therefore, the information contained in the Preliminary Application as well as the subsequent refinement of plan concepts and incorporates feedback from the City's representatives. The present document will be submitted to the Planning Commission and City Council for review and public hearings. Upon the approval of the City Council the Plan will be implemented as an ordinance. SOUTHEAST SPECIFIC PLAN DEVELOPMENT STANDARDS AND REGULATIONS E. Statutory Authority California Law, specifically Section 65450 -65457 of the Government Code, empowers cities to employ specific plans to provide for the systematic implementation of the General Plan by linking the implementing policies of the General Plan with the individual development proposals in a defined area. This Specific Plan conforms to the various principles and requirements of State Planning and Zoning Law, Article 8, Specific Plans of Chapter 3. Local Planning by providing the following information: • (1) The distribution, location, and extent of the uses of land, including open space, within the area covered by the plan. • (2) The proposed distribution, location, and extent and intensity of major components of public and private transportation, sewage, water, drainage, solid waste disposal, energy, and other essential facilities proposed to be located within the area covered by the plan and needed to support the land uses described in the plan. • (3) Standards and criteria by which development will proceed, and standards for the conservation, development, and utilization of natural resources, where applicable. • (4) A program of implementation measures including regulations, programs, public <, works projects, and financing measures necessary to carry out paragraphs (1), (2), and (3). • (5) A statement of the relationship of the specific plan to the general plan. F. Relationship to the General Plan The City of Rohnert Park's General Plan provides a comprehensive statement of the objectives, themes and policies which the community is seeking to achieve in the areas of land use, growth management, community design, transportation, open space, parks and public facilities, environmental conservation, health and safety, noise, and housing. The current Specific Plan, as an instrument which promulgates and is an extension of the General Plan, incorporates, by definition, the stated general objectives, themes and policies and, where more specific objectives and policies are stated, makes reference to such objectives and policies and provides further elaboration on the ways in which the Specific Plan is responsive to this guidance. A comprehensive discussion of the General Plan goals, policies, and programs that provide direction and input to the Southeast Specific Plan and the various related elements are included as Attachment C: General Plan Analysis. 3 SOUTHEAST SPECIFIC PLAN DEVELOPMENT STANDARDS AND REGULATIONS 2. DESCRIPTION OF PLAN AREA A. Regional Setting The City of Rohnert Park is located in central Sonoma County approximately a one hour drive north of the San Francisco Bay Area. With the Pacific Ocean to the west, the community lies within the Cotati Valley and is bounded to the south by the City of Cotati while the City of Santa Rosa lies to the north. B. Local Setting As shown in Figure 2 -1, The Southeast Specific Plan Area ( SESPA) lies in Sonoma County, just outside the City of Rohnert Park's city limit in the extreme southeast corner of the City's Sphere of Influence and 20 -year Urban Growth Boundary. The SESPA is bounded to the north by the Canon Manor Specific Plan Area, to the east by Petaluma Hill Road and undeveloped land (outside the City limits), to the south Valley House Drive. and undeveloped land (also outside the City limits), and to the west by Bodway Parkway and undeveloped land. C. General Site Characteristics The SESPA consists of relatively flat land rising gently from east to west with no significant natural or manmade features or changes in topography. 1. Land Use The majority of the land is currently unimproved and vacant. There is a large single - family dwelling with several ancillary buildings located in the northeast corner of the plan area, accessed via Petaluma Hill Road. 2. Parcelization and Ownership The rectangular- shaped plan area consists of one parcel of land, which comprise approximately 80 acres of land as shown in Table 2 -1. Table 2 -1: SESPA Parcels APN Area • % of Total Applicants 047 111 030 3,484,740 80.00 James and Deana Ratto, Redwood 99.9% X Equities Investments, LLC, James Ratto Descendant's Trust, Deana R. Ratto Descendants' Trust 5 SOUTHEAST SPECIFIC PLAN DEVELOPMENT STANDARDS AND REGULATIONS D. Jurisdictions The SESPA falls entirely within the County of Sonoma, just beyond the city limits of the City of Rohnert Park. The SESPA is within the City of Rohnert Park's Sphere of Influence and 20 -year Urban Growth Boundary. Other government agencies with jurisdiction in the plan area include: • State of California Regional Water Quality Control Board, which reviews and regulates activities that affect water quality in California; • State of California Department of Fish and Game, which reviews projects affecting fish and wildlife habitat; and • Department of the Army - Corps of Engineers which regulates activities and development in the navigable waters of the United States • U.S. Fish and Wildlife Service, which reviews and regulates activities that affect habitat of threatened and endangered species 7 SOUTHEAST SPECIFIC PLAN DEVELOPMENT STANDARDS AND REGULATIONS 3. LAND USE A. Introduction This section of the Specific Plan provides information and guidance on the range of land uses and the general levels of development to be accommodated within the SESPA. Also provided are development standards which provide more specific guidance on physical development parameters such as setbacks, building height, FAR's, and the like. B. Land Use Policies Information on the Land Use policies for the SESPA, which have been established in the General Plan, are provided in Attachment C: General Plan Analysis. C. Land Use Designations As shown in the City of Rohnert Park General Plan, the land uses intended for development within the SESPA include residential and mixed -use as well as a park. Following guidance provided by the General Plan, the proposed development to be accommodated in the SESPA may be characterized as a residential community adjacent to the existing Canon Manor residential development and bounded to the east by Petaluma Hill Road, the south by Valley House Drive, and the west by Bodway Parkway. Within the residential community, as contemplated in the General Plan and shown in Figure 3 -1, different densities of housing will be accommodated. Adjacent to the residential development will be a mixed -used area. Incorporated within the fabric of the residential development will be a park to serve local residents. The Specific Plan has established 6 specific plan land use designations. Each specific plan land use designations is consistent with an existing general plan land use designation. Table 3 -1: Permitted Uses identifies uses that are unconditionally permitted and those that require special permits or approvals. Those uses not specifically listed are not permitted unless determined by the planning and community development director to be substantially similar to a listed use. A description of the specific plan land uses follows: The Rural Estate Residential (RE) land use is the lowest density land use, accommodating up to 2 single - family detached residential units per gross acre. This district is intended for very low- density residential development on large estate lots of typically 17,000 sq.ft. or larger in size. This district, located at the perimeter of the city, is intended to provide a transition from the more urban development to the open space /agricultural areas outside the city. This land use category is consistent with the "Rural Estate Residential" General Plan designation. • The Low Density Residential (LD) land use designation is also intended for single - family detached residential units. The density for this land use designation is between 4.0 and 6.0 units per gross acre. This land use category is consistent with the "Low Density Residential" General Plan designation. OC d T Q 3 0 0 m T FIGURE 3 -1: CONCEPTUAL LAND USE & CIRCULATION PLAN EXISTING CANON MANOR I LD VALLEY HOUSE DRIVE it o — zoo — WILLIAM HEZMALHALCH 1111111 111111111111 ARCHITECTS I NC. SCALE: 1" =100' LD RE RE LEGEND RE: RURAL ESTATE UP TO 2 DU/GROSS AC. LD: LOW DENSITY 4 - 6 DWGROSS AC. SEND: SOUTHEAST MEDIUH DENSITY 6 - 12 DU/GROSS AC. NU: MIRED USE •- PARK PF: PUBLIC FACILITY -- PEW CORRIDOR -- , SO' BUILDING SETBACK •- FIGURE 3 -1: CONCEPTUAL LAND USE & CIRCULATION PLAN EXISTING CANON MANOR I LD VALLEY HOUSE DRIVE it o — zoo — WILLIAM HEZMALHALCH 1111111 111111111111 ARCHITECTS I NC. SCALE: 1" =100' LD RE RE LEGEND RE: RURAL ESTATE UP TO 2 DU/GROSS AC. LD: LOW DENSITY 4 - 6 DWGROSS AC. SEND: SOUTHEAST MEDIUH DENSITY 6 - 12 DU/GROSS AC. NU: MIRED USE •- PARK PF: PUBLIC FACILITY -- PEW CORRIDOR -- , SO' BUILDING SETBACK •- SOUTHEAST SPECIFIC PLAN DEVELOPMENT STANDARDS AND REGULATIONS D. Land Use Designations Summary Table 3 -2: SESPA Land Use Program presents a comparison between the guidance provided in Table 2.4 -3 Land Use Program: Southeast Specific Plan Area of the General Plan and the proposed Specific Plan. Table 3 -2: SESPA Land Use Program Notes: 1. Gross Acreage includes all rights -of -way located within the project boundary, measured to the center line of the street 2. Rural Estate residential unit count includes one existing unit. 3. In the Specific Plan, the SE Medium Density land use category is consistent with the Medium Density General Plan Land Use Designation. 4. Includes a 5.0 net acre park and a 2.1 net acre basin (7.1 net acres total) As indicated in the table, the proposed specific plan land uses are generally consistent in terms of the General Plan's vision for the Specific Plan area. E. Affordable Housing The City of Rohnert Parks Affordable Housing Ordinance requires all new housing projects of five units or more to provide at least 15% of all units as affordable. This equates to 72 of the 475 total units within the SESPA. The ordinance provides a number of options to meet this requirement ranging from on -site construction, land donation to a non - profit developer, transfer of inclusionary unit credits and in -lieu fees for the construction of off -site affordable units. The SESPA has been designed to allow for either on -site or off -site construction of affordable units. The Specific Plan's wide range of housing types including duplexes /duets, apartments, townhomes, and small single - family homes, which provides numerous opportunities to provide on -site affordable housing consistent with the City's 13 2000 General Plan (As Amended 2010) Specific Plan Non- Non- Residential Land Use Gross Units Density Bldg Area Gross Units Density Bldg Area Acres' 000 000 Rural Estate 15 -20 30 -50 up to 2 n.a. 16.0 292 1.8 n.a. Residential Low Density 20 -22 145 -165 4 -6 n.a. 21.0 128 6.0 n.a. Residential Medium Density 26 -29 180 -220 6 -12 n.a. 27.3 237 8.7 n.a. Residential3 Mixed Use 5 -10 55 -75 n.a. 10 7.0 81 n.a. 10 -Development Public Facility <1 n.a. n.a. n.a 0.3 n.a. n.a. n.a. Parks 5 -8 n.a. n.a. 7.9 n.a. n.a. n.a. Total 80 475 Max. n.a. 1 180 -220 1 79.5 1 475 1 n.a. 10 Notes: 1. Gross Acreage includes all rights -of -way located within the project boundary, measured to the center line of the street 2. Rural Estate residential unit count includes one existing unit. 3. In the Specific Plan, the SE Medium Density land use category is consistent with the Medium Density General Plan Land Use Designation. 4. Includes a 5.0 net acre park and a 2.1 net acre basin (7.1 net acres total) As indicated in the table, the proposed specific plan land uses are generally consistent in terms of the General Plan's vision for the Specific Plan area. E. Affordable Housing The City of Rohnert Parks Affordable Housing Ordinance requires all new housing projects of five units or more to provide at least 15% of all units as affordable. This equates to 72 of the 475 total units within the SESPA. The ordinance provides a number of options to meet this requirement ranging from on -site construction, land donation to a non - profit developer, transfer of inclusionary unit credits and in -lieu fees for the construction of off -site affordable units. The SESPA has been designed to allow for either on -site or off -site construction of affordable units. The Specific Plan's wide range of housing types including duplexes /duets, apartments, townhomes, and small single - family homes, which provides numerous opportunities to provide on -site affordable housing consistent with the City's 13 w SOUTHEAST SPECIFIC PLAN DEVELOPMENT STANDARDS AND REGULATIONS 4. DEVELOPMENT STANDARDS AND REGULATIONS This Chapter describes standards for the development of each designation within the plan area. Table 4 -1: Development Standards, sets forth the minimum requirements for lot area, coverage, floor area ratios, height, and setbacks, except as allowed through the City development and design review process, planned area process, or as otherwise indicated by the Specific Plan. The intention of these standards is to provide quantifiable guidance on the development desired in each of the land use categories. For issues not specifically addressed by the development standards or the Specific Plan, the City of Rohnert Park Zoning Code shall apply and shall be based upon the most compatible zoning designation as determined by the planning director or his /her designee. Park development standards are intentionally excluded from Table 5 -1: Development Standards. Park development standards shall be the same as those specified in the Parks (P -1) zoning district of the City of Rohnert Park Zoning Code. 15 SOUTHEAST SPECIFIC PLAN DEVELOPMENT STANDARDS AND REGULATIONS Table 4 -1 Notes: J1. Duplexes are two attached units located on the same lot. Duets are two attached units located on two separate lots. 2. Dimensions are measured at the center of the lot. Flag lots are permitted. 3. Maximum Residential Density refers to the gross overall density for the overall specific plan land use district. 4. Towers, spires, cupolas, chimneys, elevator penthouse, water tanks, monuments, and similar structures and necessary mechanical appurtenances covering not more than twenty percent of the top floor roof area may exceed the maximum permitted height in the underlying zoning district by ten feet by conditional use permit. 5. Accessory structures are defined as detached structures such as sheds and small out structures not intended to serve as a living quarters. These are not permitted on duplex or duet lots, on mixed -use parcels, or within the 50 -foot Petaluma Hill Road setback. All accessory structures shall meet the requirements of Rohnert Park Zoning Code section 17.10.060 as it pertains to accessory structures. For purposes of this specific plan, detached garages are not considered accessory structures. 6. All homes backing up to Petaluma Hill road shall be single story. No structures are permitted within the 50 -foot setback, which is measured from existing right -of -way. 7. Minor projections such as bay windows, fireplaces, balconies, dormers and other minor architectural projections may encroach up to 2 feet into the front yard setback and up to 3 feet into side and rear yard setbacks. Intrusions into setbacks shall not exceed more than 30% of the total length of wall. 8. Front yard setback and Public Utility Easements may need to be expanded in specific locations to accommodate additional room for utility boxes, transformers, and other infrastructure pursuant to the requirements of the public utility company. 9. Duplex/Duet garages may be accessed either directly from the street like a conventional lot or by an alley like an alley lot. 10. Minimum setback to property line may be 0' or 3' minimum; however, the aggregate distance between buildings shall be no less than 8 feet. 11. Dimension may be. reduced to a minimum of 10 feet for up to 55% of the width of the building. 12. Due to the configuration of duplex/duet units, the rear setback is often synonymous with the side yard setback. Garages may be setback a minimum of 5 feet in either condition; however, living areas shall be setback a minimum of 10 feet when adjacent to another lot's private rear yard. 13. Garages access from alleys or private drive aisles shall have a dimension of 5 feet or less or 20 feet or more to deter parked cars from blocking the alley or drive aisle. This dimension shall be measured from the edge of the alley /drive aisle to the face of garage door. 14. Private open space shall provide a minimum dimension of 10 feet in any one direction. Private open space may be provided in the front, rear or side yards as long as the area is defined by a fence or wall and may be split into two areas if necessary. Private open space areas may be split into two separate areas as long as the minimum dimension is met for all spaces and the cumulative area of all spaces meets the minimum area requirement. 15. This requirement applies to residential uses only and may be provided in the form of balconies, porches or decks. The minimum dimension shall be 6 feet. r,d 6. FAR for commercial buildings shall not exceed 0.4. FAR for residential building shall not exceed 1.15 and shall have a minimum ;7 density of 12.2 du /ac. Mixed use buildings, if proposed, are permitted to increase the FAR in accordance with the General Plan. 17. Tandem spaces are permitted in order to meet the parking requirements. 18. Wall and fence heights may be increased to allow for sound attenuation per the recommendation of an acoustical study. 19. Secondary dwelling units are defined as either an attached or detached unit intended for use as a separate living unit but under the same ownership as the primary unit. Secondary dwelling units must include separate access, a bathroom, a kitchenette, and a separate parking space. This space may be provided as a tandem garage space or an uncovered space but must be located on the same lot as the unit. Secondary dwelling units shall be subject to the same minimum setbacks as the primary structure. A traffic noise assessment was performed as part of the SESPA planning process to determine the extent to which traffic along the major thoroughfares adjacent to the area had the potential to generate noise levels in excess of established standards. The findings of this assessment are that noise generated by traffic along Petaluma Hill Road, Bodway Parkway, and Valley House Drive is anticipated to be such that mitigation measures such as sound walls, berm, setbacks, or any combination of these would be required. The precise design and configuration of these measures will be developed in collaboration with City representatives. The Design Guidelines, presented in Chapter 6 of this document provide additional guidance and direction in planning for new development. 17 SOUTHEAST SPECIFIC PLAN CIRCULATION ELEMENT 5. CIRCULATION ELEMENT A. Existing Circulation Existing circulation in the vicinity of the SESPA is provided via three principal roadways including Petaluma Hill Road, located on the eastern boundary of the site which is the principal north /south regional roadway, Valley House Drive to the south serving east -west traffic, and Bodway Parkway to the west, also serving north /south movements. The interior of the SESPA has no existing roads. B. Roadway Classifications and Standards The General Plan provides guidance on the sizing and physical and functional characteristics of roadways within the City of Rohnert Park. For the SESPA, the General Plan's Master Street Plan (Figure 4.1 -1 in the General Plan) indicates the following classifications for roadways shown on the Plan: Bodway Parkway: Major Collector (4 lanes) [Proposed] Valley House Drive: Minor Arterial (4 lanes) [Proposed] Petaluma Hill Road: Minor Arterial (2 lanes) [Existing] The street sections which correspond to these classifications are shown in Attachment A: the Public Services Plan. C. Transit Service Transit services in the vicinity of the SESPA are provided by Sonoma County Route 44 that operates on Petaluma Hill Road. The project, when implemented, will add incrementally to the demand for transit services that can be met by the transit provider. D. Pedestrian and Bicycle Circulation Pedestrian and bicycle circulation within the SESPA will be facilitated by a network of sidewalks and bicycle lanes which will be developed along with the roadway system. This system is demonstrated in Figure 5 -1: Conceptual Pedestrian and Bicycle Circulation Plan. The local street system has been designed as a grid network of streets with sidewalks, short blocks, and multiple intersections to maximize connectivity and allow pedestrians to maneuver easily throughout the SESPA. A direct east -west connection has been provided in the form of a through street that extends from the park/mixed use area and the Rural Estate neighborhood. This connection along with one through north - south connection has been designated as a "Major Pedestrian Corridor ". Major Pedestrian Corridors are intended to provide direct connections through the site and should be lined with alley loaded homes or other similar home types that minimize the need for driveway curb cuts and vehicular interruptions for pedestrians traveling along these sidewalks. Neck -downs or bulb -outs shall be provided at key intersections to promote safer pedestrian street crossings. 19 ONLY) FIGURE 5 -I: CONCEPTUAL PEDESTRIAN & BICYCLE CIRCULATION PLAN do FYKr161r. rAA1nm MANnR 2w - - - _` �• •• • • • • • • • • • • 1111" LD �'� LD LD RE RE Aff WILLIAM HEZ14ALHALCH ARCHITECTS I NC, VALLEY HOUSE DRIVE Innnnllnnlnnhnnnul SCALE: 1" =100' VACANT (UNINCORPORATED) LEGEND Key Pedestrian Corridor 8` Multi -Use Trail Enhanced Street Crossing (Final location and design to be coordinated with adjacent project) _ Off -site Pedestrian Connection Off -site Multi -Use Trail Connection FIGURE 5 -2: CONCEPTUAL PHASING PLAN WILLIAM HEZMALHALCH ARCHITECTS I NC. SCALE: 1" -100' Note. I. Phase I shall be constructed as the first order of work. The remaining phases may proceed in any order. 2. Phase I shall include all public improvements within the boundaries shown on this plan. including the public park. any required storm drainage facilities. and the water tank. 3. The 36 low income /affordable rental units shall be constructed pursuant to the development agreement. 4. 10.000 SF of Commercial /Retail /Office uses and 4S townhomes will be constructed as market conditions dictate. S. Phase 2.3. and 4 shall include all public improvements within the boundaries shown on this plan. 6. If Phase 3 precedes Phase 2. the entire length of valley house drive shall be constructed. Phase I Summary.. C] phaz_e__3 Summary-_ Park. Pond. Water Tank Site (see Note 1) 12 Rural Estate 33 Low Density 36 low Density 77 SE Medium Density (Includes 10 Moderate Income Units) 20 SE Medium Density (Includes 4 Moderate Income Units) 81 Units + Mixed Use Site (See notes 3 & 4 regarding construction of 68 Total Dwelling Units (Includes 4 Affordable Units) 36 low Income Units and 45 Town_ h_ome_sj 191 Total Dwelling Units (Ind—u- des 46 Affordable Units) Phase._2 Summate _ Phase 4 Summ_arr., 26 low Density 17 Rural Estate (includes existing residence) 98 SE Medium Density (includes 14 Moderate Income Units) 33 Low Density 124 Total Dwelling Units (includes 14 Affordable Units) 42 SE Medium Densit Includes 8 Moderate Income ynitsj o Sao wo goo /Jll� 92 Total Dwelling Units (Includes 8 Affordable Units) WILLIAM HEZMALHALCH ARCHITECTS I NC. SCALE: 1" -100' Note. I. Phase I shall be constructed as the first order of work. The remaining phases may proceed in any order. 2. Phase I shall include all public improvements within the boundaries shown on this plan. including the public park. any required storm drainage facilities. and the water tank. 3. The 36 low income /affordable rental units shall be constructed pursuant to the development agreement. 4. 10.000 SF of Commercial /Retail /Office uses and 4S townhomes will be constructed as market conditions dictate. S. Phase 2.3. and 4 shall include all public improvements within the boundaries shown on this plan. 6. If Phase 3 precedes Phase 2. the entire length of valley house drive shall be constructed. SOUTHEAST SPECIFIC PLAN PUBLIC SERVICES ELEMENT 6. PUBLIC SERVICES ELEMENT A. Introduction In support of the residential, mixed -use and park development within the SESPA, public services will be required. These services include access and circulation, water service, sanitary sewer service, and storm drainage management. The Public Services Plan, provided as Attachment A, describes the delivery approach concepts for each of these systems. Following are brief summaries of the planned improvements for each service. B. Access and Circulation The existing roadways which provide primary access to the SESPA, i.e. Petaluma Hill Road, Valley House Drive, and Bodway Parkway, will require different levels of improvement in order to accommodate the future transportation demands generated by the new development. In the case of Petaluma Hill Road, which is a fully improved county highway, the project will include the installation of additional pavement to allow for the installation of an 8 -foot bike lane constructed according to County Standards along the project's frontage. A traffic signal at the Petaluma Hill Road/Valley House Drive intersection already exists as well as a new left and right turn lanes at the traffic signal. South of Valley House Drive, additional pavement will also be added to accommodate longer deceleration lanes. Bodway Parkway will be upgraded from its existing situation (which includes two traffic lanes, a median and a bikeway /sidewalk on the western side of the roadway) to include a new 6 -foot sidewalk on the east side of the parkway along the frontage of the SESPA. Finally, with the elimination of the property on the south side of Valley House Drive from the Urban Growth Boundary, the existing improvements to Valley House Drive are adequate to serve the proposed traffic flow. Improvements to both Bodway and Valley House are not included in the Public Facilities Financing Plan. Streets and sidewalks required for internal circulation within the SESPA will be developed in accordance with the City of Rohnert Park 2005 Manual of Standards, Details and Specifications. C. Water Service This project proposes to provide a 438,000 gallon tank and pumping station in accordance with the water system designed by Brelje and Race, Consulting Civil Engineers. It is estimated that this facility will cost approximately $700,000 and would be part of the project improvements. As part of the Specific Plan process the Rohnert Park Final Water Supply Assessment ,(Winzler and Kelly, January 2005) was prepared to determine the availability of water needed to serve the project area. The Specific Plan also considers water conservation and a water conservation plan was prepared. Both the water assessment and the water conservation plan are on file with the City of Rohnert Park Development Services Department (File numbers 2003 -031 and -054). Consistent with the objective of water conservation, low flow devices will be installed within the new homes and drought tolerant 25 SOUTHEAST SPECIFIC PLAN DESIGN GUIDELINES 7. DESIGN GUIDELINES The Design Guidelines are presented as Attachment B to this document. 27 SOUTHEAST SPECIFIC PLAN IMPLEMENTATION ELEMENT 8. IMPLEMENTATION ELEMENT A. Introduction The Specific Plan will be implemented through a combination of private and public actions, although the public actions will largely be confined to the review and approvals process, while the responsibility for the development of the facilities and services within the project area will be the responsibility of the private sector. This element identifies the regulatory, financial, and development actions which are required to implement the Specific Plan. The Implementation Element is comprised of three parts, as follows: • Actions required for adoption of the Specific Plan • Development review and approval process • Financing B. Actions Required for Adoption The City of Rohnert Park and Sonoma County will need to undertake the following actions prior to the adoption of the Southeast Specific Plan: • Certify the Southeast Specific Plan EIR. • Annex the Specific Plan into the City of Rohnert Park. • Amend the City of Rohnert Park General Plan and adopt rezoning as necessary. .�_. • Amend the Sonoma County General Plan and adopt rezoning as necessary. C. Development Review and Approval Process As stipulated in the City of Rohnert Park's Municipal Code, Chapter 17.57 SP- Specific Plan District, upon approval of the Specific Plan by the City Council by ordinance, the Plan will enter into effect. Subsequent to the Plan being approved, a Development Area Plan or Plans will be the next step in the development process. The Development Area Plan Application(s) may be submitted at any time subsequent to submittal of the Specific Plan Application, except that the entire project area or the first phase of a multi -year development may be submitted concurrently with the Specific Plan Application. Other applicable project applications, such as a subdivision map, may be submitted concurrently with Development Area Plan applications. The approval of a Development Area Plan is contingent upon a finding by the City Council that the proposed development conforms to the Specific Plan and that public infrastructure and services can be provided concurrently with the development, unless an exception is granted. The Development Area Plan provides more specific information about the proposed development including preliminary architectural plans and elevations as well as site information on plots and landscaping. A tentative subdivision map is also part of this procedure. 29 List of Attachments: Attachment A: Public Services Plan, Civil Design Consultants, Inc. October 27, 2010 Attachment B: City of Rohnert Park Southeast Specific Plan Design Guidelines, prepared by William Hezmalhalch Architects, Inc. May 2006 Attachment C: General Plan Analysis List of Related Technical Studies (on File at the City of Rohnert Park Planning Division File no. 2003 -031, -054, and —005) • City of Rohnert Park Southeast Specific Plan Preliminary Application, presented by Redwood Equities, LLC, February 2002 • Final Report — Southeast Specific Plan Market Analysis, Economic & Planning Systems, Inc. February 2002. • Final Report — Southeast Specific Plan Market Analysis, Economic and Planning Systems, February 2002; a revision to this report was prepared in 2006. • Updated Geotechnical Engineering Investigation — Proposed Residential Development 7279 Petaluma Hill Road, Rohnert Park, California, Southeast Specific Plan, Michelucci & Associates, Inc. December 2002. • Results of 2001 Survey for Special- Status Plant Species, Southeast Specific Plan Area, Rohnert Park, California; Laurence P. Stromberg, Ph.D., Wetlands Consultant; May 2001. • Jurisdictional Delineation — Redwood Equities, LLC Property, Gibson & Skordal, LLC, y Wetlands Consultants, June 2002 • Letter: from Calvin C. Fong, Chief, Regulatory Branch, Department of the Army, San Francisco District, Corps of Engineers, to Tom Skordal. • A Cultural Resources Evaluation of the Southeast Specific Plan Area, in Rohnert Park, Sonoma County, California, submitted by Archaeological Resource Service, January 2002. • Southeast Specific Plan Traffic Impact Study for the City of Rohnert Park, Whitlock & Weinberger Transportation, Inc. January 2003. • Addendum to SESPA Traffic Impact Study, Whitlock & Weinberger Transportation, March 6, 2003. • Environmental Site Assessment, Phase 1 Investigation, Harris & Lee, Environmental Sciences, March 2001. • Traffic Noise Assessment, Illingworth & Rodkin, Inc. April 6, 2003. • Public Facilities Financing Plan, Harris and Associates, May 25, 2004 • Public Services Plan, Civil Design Consultants, Inc. 2003. • Rohnert Park Final Water Supply Assessment, Winzler and Kelly, January 2005 • Water Conservation Plan for Southeast Specific Plan, John Olaf Nelson Water Resources Management, May 2008 • Preliminary Stormwater Mitigation Plan, Civil Design Consultants, Inc., 2008 Preliminary Stormwater Mitigation Plan 01 Attachment A: Public Services Plan SOUTHEAST ROHNERT PARK SPECIFIC PLAN PUBLIC SERVICES PLAN OCTOBER 27, 2010 CIVIL DESIGN CONSULTANTS, INC. 2200 Range Avenue, "o 204 Banta Rosa, CA 054M (707h 542 -4920 INTRODUCTION ACCESS AND CIRCULATION WATER SERVICE SANITARY SEWER SERVICE STORM DRAIN SYSTEM PARKS AND RECREATION POLICE AND FIRE FINANCING APPENDICES A - WATER FLOW CALCULATIONS B - PRE PROJECT HYDROLOGY AND HYDRAULICS C - POST PROJECT AT TEUNATED D - POST PROJECT UNATTENUATED PUBLIC SERVICES PLAN 2 1Itk P wo- n DRIVE Ig" SCALE: SOUTHEAST ROHNERT PARK " =i000' SPECIFIC PLAN AREA DATE: JULY 2009 CML DESKM CON3ULTAN78, INC. JOB N0: 2200 Range Avenue, Suite 204 02 -136 Santa Rosa, CA 95403 (707) 542 -4820 INTRODUCTION This proposed Public Services Plan is for an 80 f acre tract of land lying within the South East Rohnert Park Specific Plan area and within the City's urban growth boundary. This tract of land is bounded on the north by the Cannon Manor Subdivision, on the south by Valley House Drive, on the east by Petaluma Hill Road, and on the west by Bodway Parkway. Reorganization of this 80 t acre tract of land involves annexation to the City of Rohnert Park. The current site consists of a rural home site with the remaining property used for agricultural purposes consisting of hay crops. The proposed development includes residential uses ranging from low density rural estate lots to high density multifamily apartments. Light commercial and retail use is also proposed. The City of Rohnert Park will provide the appropriate level of service associated with this urban development. Additional Public Services not specifically identified in this Plan have been detailed in the City of Rohnert Park Public Facilities Finance Plan, 2006 Update. The Finance Plan is the basis for the determination of impact fees that will be paid to the City upon development of the South East Rohnert Park Specific Plan area. ACCESS AND CIRCULATION Petaluma Hill Road and Bodway Parkway will provide access from the east and west. Valley House Drive and future roadway improvements within the Cannon Manor Subdivision will provide access from the south and north. Widening and improvements to Bodway Parkway, from Camino Colegio to Valley House Drive, were completed, under City of Rohnert Park Project No. 1993 -5, in October 1994. These improvements, within Bodway Parkway's 116 -foot right of way, provide a 20 -foot northbound width from face of curb to face of median curb, a 22 -foot median, a 28 -foot southbound width from face of curb to face of median curb, and an 8 -foot wide bikeway /sidewalk along the westerly side of the roadway. This proposed Public Services Plan provides an additional 6 -foot sidewalk on the easterly side of Bodway Parkway along the project frontage. The ultimate half section improvements of Valley House Drive have been constructed along the north side of the roadway between Bodway Parkway and Petaluma Hill Road. These improvements provide a 32 -foot width from face of curb to face of future median curb, and a meandering 8 -foot wide Class I bikeway /sidewalk along the northerly side of the roadway. This interim condition provides two 16 -foot wide travel lanes for eastbound and westbound traffic. The remainder of the full section improvements along the southerly side of Valley House Drive will be constructed and paid for as development occurs to the south. Minor improvements to westerly side of Petaluma Hill Road have been previously constructed. A three -leg traffic signal has also been constructed at the Petaluma Hill Road/Valley House `k -- J' Drive intersection. These improvements included widening the roadway approximately 20 -feet to the west to accommodate new left and right turn lanes at the traffic signal, along with curb, gutter and a contiguous 7 -foot wide sidewalk. These improvements extend from the Valley House Drive intersection to approximately 300 -feet north. This proposed Public Services Plan will lengthen the deceleration and stacking lane of the left had turn lane for northbound traffic approaching the intersection of Valley House Drive. The Plan also proposes an eight -foot bike lane on the west side of Petaluma Hill Drive, extending from the intersection of Petaluma Hill Drive and Valley House Drive to the northerly project boundary. Figure 1.1 details the existing and proposed street sections for Bodway Parkway and Valley House Drive. Figure 1.2 details the existing and proposed street sections for Petaluma Hill Road and the minor interior streets. Figures 1.3 and 1.4 show the proposed interior streets and alley sections. Figures 2.1 and 2.2 show the existing and proposed streets and circulation system. 5 I EAST Xl RIES7-7- DOICATIO NEW 6' SIDEWALK 110' EX. (ARIES 20' IV I il. PLTR I I II 2% EXISTING AC EXISTING AB BODWAY PARKWAY 28' WEST 32' EX. 8' BIKEWAY & SIDEWALK NO SCALE NORTH SOUTH 26.5' 16' 16, EX. 8' 0.5' EXISTING BIKEWAY & CURB & GUTTER SIDEWALK PER CITY SM. MID) EXISTING AC, EXISTING AS VALLEY HOUSE DRIVE NO SCALE : SOUTHEAST ROHNERT PARK DATE JULY 2009 SPECIFIC PLAN JOB NO: 02-136 TYPICAL ROADWAY SECTIONS FIGURE OML DESION CONBMTANrM We * 2200 Range Avenue, Suite 204 Santa Rosa, CA 95403 0707) 542-4820 101 6 EAST 80 12' VARIES 1 VARIES 8' 12' w w 01-10, 12' MIN BIKE RIGHT TURN -9 LEFT LANE TURN 0.5' 0 x SW in 2X 2% ---- -0' -8' NEW EXISTING AC PAVEMENT EXISTING AB EXISTING CURB & GUTTER two I WEST BERM PETALUMA HILL ROAD NORTH OF VALLEY HOUSE DRIVE INTERSECTION EAST 89 SHLD 12' 1 12' 89 TURN LEFT SHLD I 2% 2X EXISTING AC AB EXISTING AB AB- WEST NO SCALE PETALUMA HILL ROAD SOUTH OF VALLEY HOUSE DRIVE INTERSECTION SOUTHEAST ROHNERT PARK SPECIFIC PLAN TYPICAL ROADWAY SECTIONS Cfvl- CXMM COPMULTANM INC 2200 Range Avenue. Suite 204 Santa Rosa, CA 95403 (707) 542-4820 NO SCALE 0, It: JULY 2009 )B NO: 02-136 FIGURE lm2, 7 (TyP-) 461 INTERIOR STREET NO SCALE R/W R/W 42' Irt 5' 1 16, 1 16' 1 5' rmr=: 2% 2X AC CURB & GUTTEI AB PER CITY SM. (TyP-) 429 INTERIOR STREET NO SCALE DATE: SOUTHEAST ROHNERT PARK JULY 2009 SPECIFIC PLAN JOB NO: TYPICAL ROADWAY SECTIONS 02-136 FIGURE CM- DESIM OONSULTAM-4 INC. 2200 Range Avenue, Suite 204 Santa Roma, CA 95403 (707) 542-4820 183 LL i 5' r 12' 24' a I AC AB s s ::. CURB & GUTTER PER CITY STD. DEPRESSED CURB AT DRIVEWAY APPROACH. 2W INTERIOR ALLEY , --► LL j 2' I 5' 1' 2% CONCRETE � HEADER (TYP.) SOUTHEAST ROHNERT PARK SPECIFIC PLAN TYPICAL ROADWAY SECTIONS CM- DOWN CONSULTANTS, INC 2200 Range Avenue. Suite 204 Santa Rona, CA 95403 (707) 542 -4820 NO SCALE pt 1 t: JULY 2009 )B N0: 02 -136 FIGURE -lm4 9 P 900 � O P a (off 7a jL 0 i 0 o Q �• a 0 o � pg a �V a b N 9 Q a o 0 0 0 o a o P V� T v 3 a w t 0 200 5100 rm%mmrmmmmm" 11 ac�E= r — 2W o P C7 qo ooh a o0 0 a 0 Q Q o o ANOW, PETALUMA HILL ROAD I i O I� Q 'o � J I F I Z W ZIL� OUP 3 $ a: O)WIS SW�� r o) E — a 0) rKL 1 610. 2.1 ed N n ..A,,.,„.Mn� a _ s... . ,. .. s..0 - �."' 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"-S. >,e..;_"' ., .:- ,'n.�_ S` ''4� 'b .,,Y ?Y, :.: f 'f L �!•,y ',�y:. �A,` -, Via(. .. :.. 1 .: �:,. .,. ?,,y xwr..'k.."Yi ,,,t_.: ..Y,i ,kyr.a <:x, �.✓ _3tt. �`.', 3-w .,n'T�i .. 7,.: .G`':ij lu � ,.'SS: ..:-�..i-. -`4 <.,.., ,na,....,.,a,,... „ >,...w -:N -'„ .e..."w. ,,,.,a< >.'vi,a:,G�S< <.:, -x� >w.a.;1,3M •a.v'.,xw�aa- ''x=?+ :v +� _ ,.a- �'*5;>..'.:<>s§_u.-a,.;:a;a .d,.i =.. ,..4 , --,a ,:.. , >; .dr.•_ .._„ -,•. ..x- _,,.y.,...,<a,.•..,.., - .>,... .. ,.1.z >,.c,.,. a.a-r, -:s, _::W SEE TYP. SECTIONS •... ^2 s •.•.;.;::�:•:•:�e•i�.; "' ' -� „_ ° -� � ,;e�, -°ir?�� , pia, �"'s � �� "r ; 5 6 7 r f f k X110. S ,. 6 a O 3OO OO 62-17/ FIGURES 1.3 ec 1.4 FIRM V 40. OWN Z. Z aca� r - 300 11 WATER SERVICE A new eight -inch water main is proposed to extend from the intersection of Camino Colegio and Bodway Parkway, south along Bodway Parkway to the location of the water tank at the northwestern corner of the project site. In order to provide adequate water pressure and storage for the development a water tank will be constructed. The tank will require a regulating valve on the fill line and a booster pump on the discharge line to fill the tank and convey water to the on- site system. This system consists of 8 inch water mains within the existing roadways of Bodway Parkway and Valley House Drive, as well as the interior streets of the subdivision. A backup generator will also be provided to ensure the availability of water in the case of a power outage. Brelje & Race has conducted a review of the Rohnert Park Water Model data for the Southeast Rohnert Park Specific Plan area and has concluded that the existing hydraulic head is sufficient to fill a tank 30 feet in height. In order to determine the availability of water for fire flows of the Southeast Rohnert Park Specific Plan area, a preliminary hydraulic analysis of the proposed water system has been prepared. This hydraulic analysis is located in Appendix A at the back of this report. The basis of the analysis is that the tank and booster pump will supply the water pressure and storage. The most remote point of the Southeast Rohnert Park Specific Plan area is in the cul -de -sac at southeast corner of the property, and is labeled as junction J -12 in the water flow calculations. The water flow calculations show that when a demand of 1,500 gpm is calculated for this most remote point the residual pressure in the main is 37.34 psi. This means that all other points within the proposed water system will have a residual pressure in the main greater than 37.34 psi. ! The City of Rohnert Park will require at least 20 psi residual pressure in the main flowing at + 1,500 gpm for fire flow. Additional water system pipeline improvements in the area will be done as part of the City's Capital Improvement Program and will be funded by the City of Rohnert Park Public Facilities Finance Plan, 2006 Update. The developer will provide the water tank system and interior water mains of adequate size to meet fire flow requirements. The proposed project will install low flow devices within the new homes and encourage drought tolerant landscaping. The project developers will work with the City to construct appropriate water saving and water generating projects. This could include installation of low flush toilets in a portion of the rest of the City to offset project flows. Figure 3 shows the proposed water system layout. iu i ti pw O 3 h ¢h 6 4 m 'S �I w t O C. �+f 13 DIM- The City of Santa Rosa currently provides sewage treatment for the City of Rohnert Park under an existing agreement. The current total flow to the plant is 16.5 mgd with a plant capacity of 21.34 mgd. The flow from Rohnert Park is currently at 3.15 mgd with an allocation under their agreement with Santa Rosa of 3.43 mgd. Flows to the treatment plant have been reduced in recent years. This is due to conservation measures and improvements to the collection system. The flows currently into the plant are at 1990 levels. The City of Santa Rosa and the City of Rohnert Park currently are requesting a capacity increase. When this request is granted and improvements are made, the allocation for Rohnert Park will be increased to 5.15 mgd. The Southeast Specific Plan area will incorporate water saving devices within the residential units to reduce the amount of sewage generated. This will include low flush toilets, low flow showerheads, and pressure reducing regulators installed at each water meter. The City of Santa Rosa (managing partner of the Santa Rosa Subregional Water Reclamation System) has proposed to implement an Incremental Recycled Water Program (IRWP) to provide reliable treatment, reuse, recycling and/or disposal of the wastewater generated from growth anticipated in the General Plans of the communities making up the Subregional System. The IRWP has been adopted and approved and is currently being implemented. A 12 inch gravity sanitary sewer main in Bodway Parkway is proposed to carry the effluent flows of the Southeast Rohnert Park Specific Plan area. This 12" main will connect to the existing sanitary sewer manhole at the intersection of Bodway Parkway and Camino Colegio. = ' From this point, the main flows westerly to the existing sewer lift station located at the northwestern corner of the former Hewlett- Packard property. The existing sewer lift station and force main were designed to carry the effluent flows from the Southeast Rohnert Park Specific Plan area and the Cannon Manor Subdivision. From the lift station, the effluent will be pumped through the existing force main to the City's existing trunk line sewer near the northwest comer of the Sonoma State University property and Copeland Creek. A new trunk line sewer extending from Snyder Lane to the City's existing terminal pump station is included in the City of Rohnert Park Public Facilities Finance Plan, 2006 Update. It is anticipated that the existing sewer force main will be connected to the new trunk line sewer when it becomes available. Figure 4 shows the proposed sanitary sewer layout. 14 15 Og 1g, m i g." ,77, W tt Prm — ? -PA, g KT ng 3 1NA aq� 572 OMM rf FOF- tg- 0 09 -4; T Fgk" �4 ANO�` OMU; .,y MINORU i _1H `�,;,WW -7 . rE, f�i M ME Oil I'll im -;Air §� - - zggm-WE T I M_ -n '7 77 R12 . . S T i� 40m CT -.-. ,��A - �m, - 0- pam gM . ..... wr"ST TION WNK A WA It z-11 g, 'g, $A ...... NO. ERR-t, ml li-2 lail Sir R 0 0"1 omtT .... .. ... .. . ... ... .. z. 140� 7 j OaSmT7j r SEWER MAIN .............. ... ... ....... E)OSMNG SEWER UFT" TA . .. . S -noN .. ......... ........... ........ ..... 2 *A 2 .......... .. -120 ....... ... . . . ....... . . ..... ... . .. .... .... "A a: z w z 0 �VA. L House- a .. . ...... .. 5OLU 10 MAIN EXI S11N G SEWER. i':' PR OP OS ED: Z SEWER M A N im Nm 02-138 FIGURE R 15 STORM DRAIN SYSTEM Storm water runoff from the Southeast Rohnert Park Specific Plan area will be collected and conveyed through a series of interconnected drop inlets, catch basins, manholes, and pipes. Eventually, the system will converge at the storm water detention facility located within the Park at the project's western boundary. This area is labeled as "Parcel A" on the attached Figure 5. The storm water detention facility or detention pond will attenuate the increase in runoff that will be caused by the development of the property. To accomplish this objective, the collected runoff from the pond will be released through two outlet structures. The structures are designed to meter the rate of discharge such that the pond's outflow rate will be less than the inflow rate and be reduced to that of the pre - project undeveloped condition. The outlet structures and the storm drain system under the pond are designed to allow lower flows to travel freely within pipes under the pond to the existing offsite storm drain system. When the pipes beneath the pond reach their full capacity, storm water will bubble up into the detention pond through drop inlets. The flows will be detained within the pond and slowly metered into the existing offsite storm drain system. The storm event recurrence interval targeted for flood control is the 100 -year event. Both the 10- year and 100 -year storms were analyzed to ensure that the project's post development storm water does not adversely affect the existing offsite system. The point of reference within the watershed that is used to compare pre and post project flows is located on the Hewlett Packard site and is highlighted (as HP CB 10) in Figure 5. Comparison of the data from the hydrologic and hydraulic models is presented in Figure 5A. Preliminary calculations and a brief explanation of the hydrologic and hydraulic analysis of the pond are included in Appendices B, C & D of this f study. After release through the outlet structures, the runoff will drain into two existing offsite systems located in Bodway Parkway -one flows due west and the other proceeds southerly along the Bodway Parkway alignment. Eventually these two systems converge just to the west of the intersection of Bodway Parkway and Valley House Drive (at HP CB 10). In addition to the primary function of the storm water detention facility, the pond will also provide secondary benefits to the area. When storm water is not present within the detention pond, the area can be enjoyed as additional recreational space. The project will also incorporate features into the storm drain system to minimize the impact that pollutants leaving the site may have on the watershed. A Preliminary Storm Water Mitigation Plan has been prepared to further detail the purpose, design and maintenance of these features. The design was based on the "Santa Rosa Area Standard Urban Storm Water Mitigation Plan" (SUSMP). 16 '1 0 C m Cl� D i y hpcb9 P -JN D ALT #2 POND DATA YEAR OUTFLOW 10 —yr 26 cfs 100 —yr 38 cfs S.' A,010 Pond Anafoisjhpcbtadwq 711JI2010 4:3x.•02 PM Par :b 15 WS ELEV 134.5 135.5 IATED EXISTIN Q 10 36.3 Q 100 51.7 P -JN D ALT #2 POND DATA YEAR OUTFLOW 10 —yr 26 cfs 100 —yr 38 cfs S.' A,010 Pond Anafoisjhpcbtadwq 711JI2010 4:3x.•02 PM Par :b 15 WS ELEV 134.5 135.5 IATED ATTENUATED 5.1 _ 18.0 kTED ATTENUATED 4.0 _ 5.6 ga� cm A." AWE W t"'2 A 2- AN W.5 yea ?�,gmq Ur ,w•e MEN zr R W N, 4� 4 gagggy �,, G. M�ffi Aq t W, BMW own N -Iw- 'M rf-R o' p ig a— I OL #09 WE Am "s u t. zzll gg a—, "Al % ------ wiffis .0� 10 WIN Ewe. lllllli�L_ —a LEGEND W EXISTING STORM DRAIN uJ (o PROPOSED STORM DRAIN TRIBUTARY AREA TRIBUTARY SUB-AREA uJ 25MP gm mmaa-a JOB NO. 02-136 o 20D 40D nGURE SCALM r - sm 5 SCHOOLS We contacted the Cotati - Rohnert Park Unified School District to determine services available to the Southeast Rohnert Park Specific Plan area. A representative of the school district indicated that currently the Southeast Rohnert Park Specific Plan area would be served by the following schools: Elementary School: Monte Vista Middle School: Lawrence E. Jones Middle School High School: Rancho Cotate & Technology High The school district representative stated that these schools are subject to change if and when the Cotati - Rohnert Park School District revises their district boundaries. kE PARKS AND RECREATION A new community park parcel is proposed within the Southeast Specific Plan area. This Public Services Plan proposes a 5 acre park adjacent to Bodway Parkway. The park parcel's proposed east -west orientation allows it to be integrated into the Southeast Rohnert Park Specific Plan area's proposed pedestrian promenade and view corridor. See Figure 6 for the preliminary Park Plan. 20 Sys 21 POLICE AND FIRE Once the Southeast Specific Plan area is annexed to the City of Rohnert Park, the Department of Public Safety will provide police and fire services to this area. The Department of Public Safety provides police, fire and other related services with cross - trained personnel under a single administrative umbrella. 22 FINANCING It is anticipated that developers will finance the installation of improvements within the Southeast Rohnert Park Specific Plan area, and will also contribute through City fees such as: school mitigation fees, park fees, sewer and water connection fees, storm drain fees, engineering plan check fees, grading plan and permit fees, building plan and permit fees, housing in -lieu fees, traffic signal fees, and area wide impact fees effective at the time of development and/or construction. The City of Rohnert Park Public Facilities Finance Plan, 2006 Update includes detailed information on area wide impact fees and is the basis for the determination of these fees. 1 23 APPENDIX A WATER FLOW CALCULATIONS PUBLIC SERVICE8 PLAN 24 Sc f "110: Tank P -1 8.0 in PMP -1 R -1 P -2 P -3 8.0 in 8.0 in J -2 0 ,_ J -3 P -5 LA P -6 � P -7 P -20 8.0 in P -19 8.0 in J -1 tsm in J -6 P -27 8.0 in P -36 J -7 P -23 8.0 in P-45 8.0 in P -8 8.0 in J -21 g pin J -22 J -28 8.0 in J -31 8.0 in P-22 8.0 in P -28 8.0 in P -34 8.0 in P -37 8.0 in P-46 P -51 P -21 J -19 -2 in J 20 P -25 8.0 in J -23 P -38 J -29 P-41 8.0 in n J -32 8.0 in P -29 P-47 8.0i 8.0 in 8.0 in J -24 J -27 J -30 J -242 J -33 J -10 -33 8.0 in P -132 8.0 in P-42 8.0 in P-44 P -50 P -10 P -30 8.0 in 8.0 in 8.O in 8.0 W P -26 J -18 8.0 in J -25 P -35 8 0in 8 In 8.0 in P -31 8.0 in P -39 8.0 in P -43 J -26 8.0 in J -11 P-13 8.0 in J -34 P -32 8.0 id I P_49 P -14 P -18 8.0 in 8.0 in J -17 8.0 in J -16 8.0 in J -15 8.0 in P -15 J -14 8.0 in P -9 8.0 in J -9 J -12 J -13 Title: SERP -JULY 2009 s:\sdsk\proj \02 - 136 \wtrc \07 -09 serp.wcd Project Engineer: Mark von Tagen Civil Design Consultants WaterCAD v7.0 [07.00.049.00) 07/20/09 09:58:30 AM © Bentley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1- 203 -755 -1666 Page 1 of 1 N N Project Inventory Title: ' SERP- JULY2009 ',roject E��ngineer: Mark von Tagen roject Date: 07/01/09 Comments: Scenario Summary Scenario Tank Active Topology Alternative Base Active Topology Physical Alternative Physical -tank only Demand Altemative Base - Average Daily Initial Settings Altemative Initial Settings -tank only Operational Alternative Base - Operational Age Alternative Base -Age Alternative Constituent Alternative Base - Constituent Trace Alternative Base -Trace Alternative Fire Flow Alternative Base -Fire Flow Capital Cost Alternative Base -Cost Energy Cost Alternative Base - Energy Cost User Data Alternative Base -User Data Liquid Characteristics Liquid Water at 20C(68F) Specific Gravity 1.00 Kinematic Viscosity 1.0804e -5 ftz /s Network Inventory Pressure Pipes 51 Number of Tanks 0 'Number of Reservoirs 1 - Constant Area: 0 _. Number of Pressure Junctic 34 - Variable Area: 0 Number of Pumps 1 Number of Valves 0 - Constant Power: 0 - FCVs: 0 - One Point (Design Point): 0 - PBVs: 0 - Standard (3 Point): 1 - PRVs: 0 - Standard Extended; 0 - PSVs: 0 - Custom Extended: 0 - TCVs: 0 - Multiple Point: 0 - GPVs: 0 Number of Spot Elevations 0 Pressure Pipes Inventory 8.0 in 18,988.00 ft Total Length 18,988.00 ft r Title: SERP -JULY 2009 Project Engineer: Mark von Tagen s:\sdsklproj \02- 136 \wtrc \07 -09 serp.wcd Civil Design Consultants WaterCAD v7.0 [07.00.049.00] 07/20109 09:58:56 08entley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1 -203- 755 -1666 Page 1 of 1 26 Scenario: Tank Steady State Analysis Reservoir Report Label Elevation Zone Inflow Calculated (ft) (gpm) I iydraulic Grad (ft) R -1 139.60 Zone -1 - 1,500.00 139.60 r �r r r Title: SEfkb -JULY 2009. Project Engineer: Mark von Tagen s:\sdsk \� of \02 - 136 \wtrc \07 -09 serp.wcd Civil Design Consultants WaterCAD v7.0 [07.00.049.00] 07/20/09 09:59:14 06entley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1 -203- 755 -1666 Page 1 of 1 27 ,r Scenario: Tank Steady State Analysis Pump Report Label Elev. Pump In Pump Pump Q Dis. Pump Status Calc. Discharge (ft) HGL. Enhcd HGL Pres. (gpm) Enhcd H Wtr solute Value In HGL Out Out HGL (ft) Pwr (gpm) (ft) (ft) (ft) (psi) (ft) (Hp) PMP -1 139.60 138.03 1 138.03 1 274.29 58.27 1,500.00 274.29 136.26 On 51.60 1,500.00 160.0 140.0 120.0 100.0 M ^ p! z f_. 60.0 40.0 20.0 0.0 0.0 I� Pump Head Curve PMP -1 (Relative Speed Factor= 1.00) i 6 1 i 1 1 I I I I I I 1 I 1 1 ' I I 1 I I I 1 ' I I 1 I I ------- ;-- - - - - -- -- - - - - -- - - - - -- -------- !---- - - - -'- '- - - - - -J, -- - - - - -- -- - - - - -- ""--------- 1 1 1 1 I I 1 1 1 1 ----- -- .-1- ---- --- t-- --- - -- -- -----�i -------t--------1---------I--------- - I t 1 f 1 I 1 1 I I I J I 1 1 1 I I I I 1 1 1 1 1 I 1 ____ _ ___ ____ ____I-- __- ___J-- ___-- _1_- ___ -__ ___- _-- _I________J 1 I I 1 1 1 I I 1 I 1 1 1 1 I 1 I I 1 I I 1 1 I I 1 1 1 I 1 I I I I I 1 I 1 500.0 1000.0 1500.0 2000:0 2500.0 3000.0 3500.0 4000.0 4500.0 Discharge (gpm) Title: SERP -JULY 2009 Project Engineer: Mark von Tagen s;\sdsk\proj \02- 136 \wtrc \07 -09 serp.wcd Civil Design Consultants WaterCAD v7.0 [07.00.049.00] 07120/09 11:25:57 G*entiey Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1- 203 - 755 -1666 Page 1 of 1 28 Scenario: Tank Steady State Analysis Junction Report Sabel Elev. (ft) Zone Type Base FloA (gpm) Paftem Demand (Calc.) (gpm) P (psi) HGL (ft) J -1 138.30 Zone -1 Demanc 0.00 Fixed 0.00 57.54 271.29 J -2 145.99 Zone -1 Demanc 0.00 Fixed 0.00 51.19 264.30 J -3 148.28 Zone -1 Deman 0.00 Fixed 0.00 48.90 261.31 J-4 141.11 Zone -1 Deman 0.00 Fixed 0.00 46.93 259.59 J -5 156.47 Zone -1 Demanc 0.00 Fixed 0.00 44.26 258.78 J -6 159.40 Zone -1 Demanc 0.00 Fixed 0.00 42.59 257.85 J -7 162.75 Zone -1 Demanc 0.00 Fixed 0.00 41.10 257.74 J -9 159.07 Zone -1 Demanc 0.00 Fixed 0.00 42.58 257,49 J -10 154.48 Zone -1 Demanc 0.00 Fixed 0.00 44.48 257.29 J -11 .152.30 Zone -1 Demanc 0.00 Fixed 0.00 43.45 252.73 J -12 153.50 Zone -1 Demanc 1,500.00 Fixed 1,500.00 37.34 239.81 J -13 148.31 Zone -1 Demanc 0.00 Fixed 0.00 46.24 255.19 J -14 146.88 Zone -1 Deman 0.00 Fixed 0.00 47.91 257.62 J -15 142.95 Zone -1 Demanc 0.00 Fixed 0.00 5029 259.19 J -16 139.21 Zone -1 Demanc 0.00 Fixed 0.00 52.36 260.23 J -17 132.40 Zone -1 Demanc 0.00 Fixed 0.00 44.19 234.53 J -18 134.25 Zone -1 Deman 0.00 Fixed 0.00 43.39 234.53 J -19 136.90 Zone -1 Demanc 0.00 Fixed 0.00 42.24 234.53 J -20 0.00 Zone -1 Demanc 0.00 Fixed 0.00 114.63 264.96 J -21 138.12 Zone -1 Demanc 0.00 Fixed 0.00 55.11 265.50 J -22 0.00 Zone -1 Demanc 0.00 Fixed 0.00 114.35 264.31 J -23 0.00 Zone -1 Deman 0.00 Fixed 0.00 114.13 263.78 - -1 24 0.00 Zone -1 Demanc 0.00 Fixed 0.00 113.17 261.58 25 . 0.00 Zone -1 Demanc 0.00 Fixed 0.00 112.98 261.14 J -26 0.00 Zone -1 Demanc 0.00 Fixed 0.00 112.82 260.77 J -27 0.00 Zone -1 Demanc 0.00 Fixed 0.00 112.83 260.78 J -28 ,16.00 'Zone-l.Demanc 0.00 Fixed 0.00 112.16 259.25 J -29 "0.00 Zone -1 Deman 0.00 Fixed 0.00 112.15 259.21 J -30 0.00 Zone -1 Demanc 0.00 Fixed 0.00 112.18 259.28 J -31 0.00 Zone -1 Demanc 0.00 Fixed 0.00 111.98 258.82 J -32 0.00 Zone -1 Demanc 0.00 Fixed 0.00 111.95 258.76 J -33 0.00 Zone -1 Demanc 0.00 Fixed 0.00 111.72 258.23 J -34 0.00 Zone -1 Demanc 0.00 Fixed 0.00 111.66 258.07 J-2421 0.00 1 Zone -1 Demanc 0.00 1 Fixed 1 0.001 111.841 258.50 Title: SERP -JULY 2009 Project Engineer: Mark von Tagen s:\sdsk\proj \02 - 136 \wtrc \07 -09 serp -wed Civil Design Consultants WaterCAD v7.0 (07.00.049.00] 07/20/09 09:59:40 OWentley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1- 203 - 755 -1666 Page 1 of 1 29 Scenario: Tank Steady State Analysis Pipe Report Length Diameter Material Hazen- Minor Discharge Upstream Structure Downstream Structure Pressure Velocity (ft) (in) Williams Loss (gpm) Hydraulic Grade Hydraulic Grade Pipe (ft/s) C Coefficient (ft) 1 (ft) H P -1 53.00 P -2 101.00 P -3 773.00 P-4 243.00 P -5 276.00 P-6 496.00 P -7 297.00 P -8 159.00 P -9 503.00 P -10 446.00 P -12 389.00 P -13 355.00 P -14 291.00 P -15 246.00 P -16 505.00 P -17 520.00 P -18 897.00 P -19 405.00' P -20 429.00 P -21 465.00 P -22 199.00 "-4' -25 433.00 P -26 898.00 P -27 221.00 P -28 196.00 P -29 206.00 P -30 224.00 P -31 187.00 P -32 222.00 P -33 245.00 P -34 621.00 P -35 658.00 P -36 205.00 P -37 296.00 P -38 706.00 P -39 637.00 P-40 495.00 P-41 495.00 P-42 249.00 P-43 677.00 P-44 257.00 P-45 205.00 P-46 209.00 P -47 208.00 P-48 426.00 P-49 213.00 i0 245.00 -51 594.00 Title: SERP -JULY 2009 Project Engineer. Mark von Tagen s:\sdsk\proj \02- 136\wtrc \07 -09 serp.wcd Civil Design Consultants WaterCAD v7.0 [07.00.049.00] 07/20/09 09:59:52 08entley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1 -203- 755 -1666 Page 1 of 1 30 (ft) 8.0 PVC 150.0 0.00 1,500.00 139.60 138.03 1.57 9.57 8.0 PVC 150.0 0.00 1,500.00 274.29 271.29 3.00 9.57 8.0 PVC 150.0 1.48 755.68 271.29 264.30 6.98 4.82 8.0 PVC 150.0 2.06 787.00 264.30 261.31 2.99 5.02 8.0 PVC 150.0 1.53 578.48 261.31 259.59 1.73 3.69 8.0 PVC 150.0 2.41 285.75 259.59 258.78 0.81 1.82 8.0 PVC 150.0 2.46 382.94 258.78 257.85 0.93 2.44 8.0 PVC 150.0 2.41 151.63 257.85 257.74 0.10 0.97 8.0 PVC 150.0 2.38 151.63 257.74 257.49 0.25 0.97 8.0 PVC 150.0 0.79 151.63 257.49 257.29 0.20 0.97 8.0 PVC 150.0 2.41 798.67 257.29 252.73 4.57 5.10 8.0 PVC 150.0 1.67 1,500.00 252.73 239.81 12.92 9.57 8.0 PVC 150.0 2.06 - 701.33 252.73 255.19 2.46 4.48 8.0 PVC 150.0 2.06 701.33 257.62 255.19 2.43 4.48 8,0 PVC 150.0 3.15 .394.66 259.19 257.62 1.58 2.52 8.0 PVC 150.0 2.41 320.09 260.23 259.19 1.04 2.04 8.0 PVC 150.0 3.15 0.00 234.53 260.23 0.00 0.00 8;0 PVC 150.0 1.13 0.00 234.53 234.53 0.00 0.00 8.0 PVC 150.0 0.78 0.00 234.53 234.53 0.00 0.00 8.0 PVC 150.0 2.06 0.00 234.53 264.96 0.00 0.00 8.0 PVC 150.0 1.13 - 370.99 264.96 265.50 0.54 2.37 8.0 PVC 150.0 1.93 744.32 271.29 265.50 5.79 4.75 8.0 PVC 150.0 2.41 - 37332 264.31 265.50 1.19 2.38 8.0 PVC 150.0 2.41 370.99 264.96 263.78 1.18 2.37 8.0 PVC 150.0 3.50 0.00 234.53 261.14 0.00 0.00 8.0 PVC 150.0 0.78 -31.32 264.30 264.31 0.01 0.20 8.0 PVC 150.0 2.06 342.00 264.31 263.78 0.53 2.18 8.0 PVC 150.0 2.06 713.00 263.78 261.58 2.21 4.55 8.0 PVC 150.0 2.41 288.20 261.58 261.14 0.44 1.84 8.0 PVC 150.0 2.06 288.20 261.14 260.77 0.37 1.84 8.0 PVC 150.0 2.41 320.09 260.77 .260.23 0.53 2.04 8.0 PVC 150.0 0.78 424.80 261.58 260.78 0.79 2.71 8.0 PVC 150.0 1.87 208.52 261.31 260.78 0.53 1,33 8.0 PVC 150.0 3.20 -31.89 260.77 260.78 0.02 0.20 8.0 PVC 150.0 0.78 292.73 259.59 259.25 0.34 1.87 8.0 PVC 150.0 0.78 89.13 259.25 259.21 0.04 0.57 8.0 .PVC 150.0 0.78 - 121.14 259.21 259.28 0.07 0.77 8.0 PVC 150.0 2.80 74.56 259.28 259.19 0.08 0.48 8.0 PVC 150.0 2.41 203.60 259.25 258.82 0.43 1.30 8.0 PVC 150.0 2.41 210.27 259.21 258.76 0.45 1.34 8.0 PVC 150.0 1.13 405.72 259.28 258.50 0.77 2.59 8.0 PVC 150.0 3.20 172.61 258.50 258.07 0.43 1.10 8.0 PVC 150.0 0.78 233.11 258.50 258.23 0.27 1.49 8.0 PVC 150.0 0.78 -97.19 258.78 258.82 0.04 0.62 8.0 PVC 150.0 2.46 106.41 258.82 258.76 ' 0.06 0.68 8.0 PVC 150.0 2.81 316.68 258.76 258.23 0.52 2.02 8.0 PVC 150.0 1.13 134.06 258.23 258.07 0.16 0.86 8.0 PVC 150.0 2.06 306.67 258.07 257.62 0.46 1.96 8.0 PVC 150.0 2.41 415.73 258.23 257.29 0.94 2.65 8.0 PVC 150.0 0.00 231.31 257.85 257.29 0.55 1.48 8.0 PVC 150.0 0.00 601.42 260.78 259.28 1.51 184 Title: SERP -JULY 2009 Project Engineer. Mark von Tagen s:\sdsk\proj \02- 136\wtrc \07 -09 serp.wcd Civil Design Consultants WaterCAD v7.0 [07.00.049.00] 07/20/09 09:59:52 08entley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1 -203- 755 -1666 Page 1 of 1 30 Minor Loss Coefficient Information Page 1 of 4 S: \SOSK\PROJ \02- 136 \dwg\Qocuments \PSP -App A.xls 7/20/2009 31 Pipe Minor Loss Quantity I k (each) k (total P-3 2 Gate Valve - Open 0.39 0.78 2 Tee - Line Flow 0.35 0.70 1.48 P-4 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 2.06 P-5 2 Gate Valve - Open 0.39 0.78 1 . Tee - Line Flow 0.35 0.35 2 45 deg, Bend - Mitered 0.2 0.40 1.53 P-6 2 Gate Valve - Open 0.39 0.78 r 1 Tee - Branch Flow 1.28 1.28 1 Tee - Line Flow 0.35 0.35 2.41 P-7 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 2 45 deg, Bend - Mitered 0.2 0.40 2.46 P-8 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 1 Tee - Line Flow 0.35 0.35 2.41 R � 2 Gate Valve - Open 0.39 0.78 == 2 90 deg. Bend - Mitered 0.8 1.60 2.38 P -10 1 Gate Valve - Open 0.39 0.39 2 45 deg. Bend - Mitered 0.2 0.40 0.79 P -12 2 Gate Valve -Open 0.39 0.78 1 Tee - Branch Flow 1.28 1,28 1 Tee - Line Flow 0.35 0.35 2.41 P -13 , ` 1 Gate Valve - Open 0.39 0.39 1 Tee - Branch Flow 1.28 1.28 1.67 P -14 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 2.06 P-15 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 2.06 P -16 3 Gate Valve - Open 0.39 1.17 1 Tee - Branch Flow 1.28 1.28 2 Tee - Line Flow, 0.35 0.70 3.15 Page 1 of 4 S: \SOSK\PROJ \02- 136 \dwg\Qocuments \PSP -App A.xls 7/20/2009 31 2.06 Page 2,bf 4 S:\ SDSK \PROJ \02- 1361dwg \Documents\PSP -App A.xls 7/2012009 32 Pipe L Minor Loss I Quantity each) k (each)T- - k (total) P-17 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 1 Tee - Line Flow 0.35 0.35 2.41 P-18 3 Gate Valve - Open 0.39 1.17 1 Tee - Branch Flow 1.28 1.28 2 Tee - Line Flow 0.35 0.70 3.15 P-19 2 Gate Valve - Open 0.39 0.78 1 Tee - Line Flow 0.35 0.35 ' 1.13 P -20 2 Gate Valve - Open 0.39 0.78 0.78 P -21 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 2.06 P -22 2 Gate Valve - Open 0.39 0.78 1 Tee - Line Flow 0.35 0.35 1.13 P-23. 2 Gate Valve - Open 0.39 0.78 1 Tee - Line Flow 0.35 0.35 4 45 deg. Bend - Mitered 0.2 0.80 1.93 P -24 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 1 Tee - Line Flow 0.35 0.35 2.41 P -25 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 1 Tee - Line Flow 0.35 0.35 2.41 P -26 , + 3 Gate Valve - Open 0.39 1:17 1 Tee - Branch Flow 1.28 1.28 3 Tee - Line Flow 0.35 1.05 3.50 P -27 2 Gate Valve - Open 0.39 0.78 0.78 P-28 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 2.06 P-29 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 2.06 P -30 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 1 Tee - Line Flow 0.35 0.35 2.41 P -31 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 198 1 9R 2.06 Page 2,bf 4 S:\ SDSK \PROJ \02- 1361dwg \Documents\PSP -App A.xls 7/2012009 32 Pipe t Minor Loss I - Quantity k (each) k (total) P -32 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 1 Tee - Line Flow 0.35 0.35 2.41 P -33 2 Gate Valve - Open 0.39 0.78 0.78 P-34 , j 3 Gate Valve - Open 0.39 1.17 2 Tee - Line Flow 0.35 0.70 1.87 P -35 3 Gate Valve - Open 0.39 1.17 1 Tee - Branch Flow 1.28 1.28 1 Tee - Line Flow 0.35 0.35 2 45 deg. Bend - Mitered 0.2 0.40 3.20 P -36 2 Gate Valve - Open 0.39 0.78 0.78 P -37 . 2 Gate Valve - Open 0.39 0.78 0.78 P-38 2 Gate Valve - Open 0.39 0.78 0.78 P-39 3 Gate Valve - Open 0.39 1.17 1 Tee - Branch Flow 1.28 1.28 1 Tee - Line Flow 0.35 0.35 2.80 P-40 2 Gate Valve - Open 0.39 0.78 1 Tee -_ Branch Flow 1.28 1.28 1 Tee - Line Flow 0.35 0.35 2.41 P -41 , ' 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 1 Tee - Line Flow 0.35 0.35 2.41 P -42 2 Gate Valve - Open 0.39 0.78 1 Tee - Line Flow 0.35 0.35 1.13 P -43 3 Gate Valve - Open 0.39 1.17 1 Tee - Branch Flow 1.28 1.28 1 Tee - Line Flow 0.35 0.35 2 45 deg. Bend - Mitered 0.2 0.40 3.20 P -44 2 Gate Valve - Open 0.39 0.78 0.78 P-45 2 Gate Valve - Open 0.39 0.78 0.78 P -46 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 2 45 deg. Bend - Mitered 0.2 0.40 2.46 Page 3 of 4 S:\SDSK\PROJ \02- 136\dwg \Documents \PSP -App A.xls 7/20/2009 33 Pipe Minor Loss Quantity k (each) k (total) P-47 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 1 Tee - Line Flow 0.35 0.35 2 45 deg. Bend - Mitered 0.2 0.40 2.81 P48 2 Gate Valve - Open 0.39 0.78 1 Tee - Line Flow 0.35 0.35 1.13 P49 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 2.06 P -50 2 Gate Valve - Open 0.39 0.78 1 Tee - Branch Flow 1.28 1.28 1 Tee - Line Flow 0.35 0.35 2.41 Page 4 of 4 S: \SDSK\PROJ \02- 136 \dwg \Documents \PSP -App A.xls 7/20/2009 34 APPENDIX B PRE PROJECT HYDROLOGY AND HYDRAULICS PUBLIC SERVICES PLAN Appendix B STORM DRAIN SYSTEM ANALYSIS APPROACH The hydrological and hydraulic analysis of the watershed began with a review of the previous studies that were done in the area. The files of these studies were available at the Sonoma County Water Agency's office. In all, there were four previous analyses done in the area and these project names, dates and name of the project engineer of record are tabulated below. PROJECT NAME ENGINEER YEAR Hewlett Packard, Phase 1 M & M Consultants, Inc 1982 Hewlett Packard, Phase 2 M & M Consultants, Inc 1983 Bodway Parkway Extension M. Hudis & Assoc 1994 Hewlett Packard, Building No. 4 Unknown 2004 Each of these previous studies was referenced to establish the variables used in the hydrological and hydraulic models of this study. These variables included runoff coefficients, tributary areas, storm drain system data and basin time of concentration. Topographic information from this project and the adjacent Canon Manor was also used in establishing the variables required in the analysis. A site visit was used to confirm surface conditions and/or changes that have occurred since the watershed was topographically surveyed. The next step in the analysis was to set up a model that would help determine the existing flow at a point of reference in the watershed. The point of reference for this analysis was chosen to be storm drain catch basin #10 (HP CB 10) located just west of the intersection of Bodway Parkway and Valley House Drive on the Hewlett Packard site (see Figure 5). This point was selected over others because this catch basin is located within this watershed where the split flow from the proposed detention pond will converge. Two methods were used to hydrologically/hydraulically analyze the project's effect on the watershed and its storm drain system. The software program "StormCAD" by Haestad Methods was used to determine the backwater profile in the existing storm drain system across the watershed. This software is based on the Rational Method, which is an adequate method for determining the peak flow at a point in a watershed such as the subject watershed. The second software used was Hydraflow Hydrographs by Intellisolve which uses the SCS Unit Hydrograph method. This software was used to develop hydrographs for various conditions such as pre and post- project conditions and for the attenuated post - project condition. Intellisolve was used to analyze the runoff from the project site and to perform the routing through the pond. For the pre - project condition, the limits of the watershed were determined from all of the sources described earlier and the variables for each sub -area were input into both software suites. A map highlighting the variables for the rational method is included in Appendix B and is titled "Pre Project Hydrology Map ". Input and output from both models for the 10 and 100 -year storm events is included in Appendix B. For the post project condition, two modeling approaches were utilized. The first model is based on the Rational Method and was primarily used to estimate the peak flow in the system, which in 36 turn was used to estimate the storm drain system's capacity-- ta.convey the peak flow. The second model is based on the SCS method and this method was used to generate hydrographs for the basin and to estimate the peak runoff as well. Application and explanation of the output from both of these models is addressed below. Because preliminary comments from the City of Rohnert Park and the Sonoma County Water Agency have indicated that this project will be required to attenuate the peak increase in the 100 - year storm, the focus of the pond's design is to address this expected condition. This was accomplished by using the Intellisolve software to model a basin that routed the runoff from the site into the pond. Once in the pond, the runoff was released in the model at a rate that prevented the peak flow from exceeding the pre - project rate. This requires an iterative approach to achieve the final design of the pond. A cross section of the proposed pond is included in Appendix C. Stage/Discharge tables for the pond were developed using software marketed by Intellisolve. The variables of the pond model that affect these tables and the discharge rates of the stages are also included in Appendix C. The storm drain system within the project is designed to convey the flows of the 100 -year storm event to the detention pond. During the 10 -year event, the pond fills up to an elevation below the second weir and is metered out through on orifice on the existing 30" storm drain pipe heading west. This results in attenuation of the 10 -year event and all of the runoff from this storm event flowing down the 30" storm drain system. During the 100 -year event the 30" storm drain pipe continues to flow full and the storm water also overtops the second weir and therefore also flows into the proposed 24" pipe heading south. This is by design and the benefit to this split is that neither of the two pipes will be subjected to excessive flows. After determining the proportion of the 100 -year flow expected to be released into each of the two storm drains that drain the pond, the rational method model was adjusted to determine the backwater surface profile along the Hewlett Packard site. Although adding two peak flows calculated from different methods usually isn't common practice, this particular case is unique in that the attenuated peak calculated with the SCS method wouldn't be much different from the Rational Method peak since both are subject to the hydraulics of the pond. The pre and post project backwater elevations were compared and, with the exception of the portion of the pre .project backwater profile based on the undersized pipes in Bodway Parkway, all of the hydraulic grade elevations in the system are lower in the post project condition. Flows in excess of the 100 -year storm event will pond in the streets before breaking over localized high points and travelling southwesterly. The pond's outlet structures and the grading of the adjacent streets have been designed to maintain 1 foot of freeboard from the 100 -year water surface elevation. Appendix D contains tables highlighting the flow rates in the unattenuated condition. These tables are included for comparison between the pre and post project flow rates. The table also provides insight into the degree to which the pond attenuates the impact the project would have on the watershed. Figure 5A provides a graphic illustrating the flow rate for multiple events and conditions. 37 0 39 Scenarios EXISTING -10yr Inlet Report CDC Label Ground Elev. (ft) Sump Elev. (ft) Area (acres) C Inlet CA (acres) Local Rational Flow (cfs) Local Tc (min) Known Flow (cfs) System Tc (min) Total System Flow (cfs) V In (ft/s) V Out (ft/s) HGL In (ft) HGL Oul (ft) Gravity dH (ft) Inlet Loc. Headlos Method Branch Notes hp cb 2 117.50 108.09 0.0 0.00 0.0 0.0 10.00 0.0 47.22 83.0 4.23 4.23 116.26 116.04 0.22 In Sag AASHTC 0 hp cb 3 117.40 108.94 0.0 0.00 0.0 0.0 10.00 0.0 46.28 82.1 4.18 4.18 116.73 116.53 0.20 In Sag AASHTC 0 hp di 2 115.40 107.35 0.2 1.00 0.2 0.4 1(7:00 0.0 48.59 88.8 4.52 4.52 115.22 114.98 0.25 In Sag AASHTC 0 hp cb 1 117.37 107.66 0.0 0.00 0.0 0.0 10.00 0.0 48.07 89.2 4.54 4.54 115.78 115.41 0.37 In Sag AASHTC 0 hp cb 5 120.90 113.71 0.0 0.00 0.0 0.0 10.00 0.0 44.67 65.2 4.07 4.07 117.81 117.51 0.29 In Sag AASHTC 0 hp cb 6 120.70 113.88 0.0 0.00 0.0 0.0 10.00 0.0 43.70 65.1 3.79 3.79 118.11 117.97 0.14 In Sag AASHTC 0 hp cb 4 117.05 110.21 0.0 0.00 0.0 0.0 10.00 0.0 45.77 67.6 3.44 3.44 117.01 116.81 0.20 In Sag AASHTC 0 hp cb 4a 119.90 112.30 0.0' 0.00 0.0 0.0 10.00 0.0 45.33 66.6 3.41 3.41 117.37 117.21 0.16 In Sag AASHTC 0 hp cb 8 121.19 114.30 0.0 0.00 0.0 0.0 10.00 0.0 41.17 63.1 3.49 3.49 119.14 118.64 0.51 In Sag AASHTC 1 hp cb 9 121.83 114.45 0.0 0.00 0.0 0.0 10.00 0.0 40.31 36.1 2.88 2.88 119.35 119.25 0.10 In Sag AASHTC 1 hp cb 7 120.70 114.03 0.3 1.00 0.3 0.6 10.00 0.0 42.82 65.1 3.68 3.68 118.41 118.25 0.16 In Sag AASHTC 1 hp cb 10 125.68 114.83 0.0 0.00 0.0 0.0 10.00 0.0 38.49 36.3 2.89 2.89 119.86 119.58 0.28 In Sag AASHTC 1 BPE DI 5 134.54 130.09 3.8 0.30 1.1 2.0 15.00 0.0 15.00 2.0 3.32 3.32 130.63 130.58 0.06 In Sag AASHTC 2 bpe cb 9 135.08 128.59 1.4 0.90 1.3 2.7 10.00 0.0 17.55 6.1 4.38 4.38 129.55 129.41 0.14 In Sag AASHTC 2 hp cb 12 128.02 118.30 0.7 0.50 0.3 0.7 10.00 0.0 18.88 7.4 2.05 2.05 120.08 120.02 0.05 In Sag AASHTC 2 hp cb 11 126.93 116.56 0.3 0.50 0.2 0.3 10.00 0.0 19.54 7.5 1.53 1.53 119.97 119.94 0.03 In Sag AASHTC 2 bpe mh 1 137.74 120.54 0.7 0.50 0.3 0.7 10.00 0.0 17.78 6.6 4.48 4.48 121.95 121.80 0.15 In Sa AASHTC 2 hp cb 13 128.80 119.37 0.6 0.50 0.3 0.6 10.00 0.0 18.39 7.0 4.55 4.55 120.43 120.25 0.18 In Sac AASHTC 2 bpe cb 5 135.32 128.91 0.5 0.90 0.5 1.0 10.00 0.0 17.25 4.2 3.86 3.86 130.00 129.59 0.41 In Sa AASHTC 2 BPE CB 8 131.08 124.25 1.3 0.90 1.2 2.5 10.00 0.0 37.69 26.9 8.58 8.58 128.40 127.66 0.74 In Sag AASHTC 3 BPE CB 7 131.07 124.98 0.4 0.90 0.4 0.8 10.00 0.0 37.54 25.8 8.20 8.20 131.71 129.45 2.26 In Sa AASHTC 3 bpe mh2 133.32 123.78 0.8 1.00 0.8 0.9 32.70 0.0 37.84 27.7 9.23 9.23 126.34 125.60 0.74 In SaE AASHTC 3 hp cb 15 125.92 115.19 1.4 1.00 1.4 1.6 33.80 0.0 38.13 29.1 5.93 5.93 121.18 120.60 0.58 In Sa AASHTC 3 BPE DI 6 133.00 129.60 26.6 0.30 8.0 8.5 37.00 0.0 37.00 8.5 10.85 10.85 133.59 133.00 0.59 In Sag AASHTC 3 BPE CB 6 133.41 128.22 0.3 0.90 0.3 0.6 10.00 0.0 37.02 8.8 11.22 11.22 135.79 133.41 2.38 In Sa AASHTC 3 BPE FD 1 130.70 127.35 29.9 0.30 9.0 19.1 10.00 0.0 10.00 19.1 6.07 6.07 130.89 130.70 0.19 In Sac AASHTC 4 HP CB 3 EW 1 129.11 126.48 16.4 0.41 6.7 7.2 36.60 0.0 36.60 7.2 2.30 2.30 129.14 129.11 0.03 In Sag AASHTC 5 BPE DI 4 136.66 131.75 2.5 0.30 0.8 1.3 15.00 0.0 15.00 1.3 2.97 2.97 132.19 132.14 0.04 In Sag AASHTC 6 BPE CB 4 137.42 131.52 0.3 0.90 0.3 0.6 10.00 0.0 15.06 1.7 3.10 3.10 132.10 131.95 0.15 In Sag AASHTC 6 hp cb 16 119.90 115.18 2.0 1.00 2.0 4.0 11.40 0.0 11.40 4.0 2.25 2.25 119.93 119.90 0.03 In Sag AASHTC 7 hp cb 18 121.87 118.90 0.7 1.00 0.7 1.5 10.00 0.0 10.00 1.5 3.63 3.63 119.48 119.42 0.07 In Sag AASHTC 8 hp di 19 122.70 114.49 10.6 1.00 10.6 18.3 14.80 0.0 14.80 18.3 5.84 5.84 120.00 119.83 0.17 In Sag AASHTC 9 hp stub 1 121.19 114.32 16.5 1.00 16.5 25.2 18.70 0.0 18.70 25.2 8.03 8.03 119.61 119.29 0.33 In Sag AASHTC 10 hp di x4x 120.70 117.85 0.5 1.00 0.5 1.0 11.70 0.0 11.70 1.0 1.54 1.54 118.62 118.61 0.01 In Sag AASHTC 11 hp di 4 1117.30 114.41 2.5 1.00 2.5 4.2 15.60 0.0 15.60 4.2 3.43 3.43 117.36 117.30 0.06 In Sag AASHTC 12 Title: SOUTHEAST ROHNERT PARK sA ... Veb 2010 hydro -a- map.stm Civil Design Consultants 06/30/10 01:55:29 PM ®Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1- 203 - 755 -1666 Project Engineer: B SIMON StormCAD v5.5 [5.5006] Page 1 of 2 Scenario, EXISTING -10yr Inlet Report CDC Label Ground Sump Area C Inlet Local Local Known System Total V V HGL HGL Oui Gravity Inlet Headlosc Branch Notes Elev. Elev. (acres) CA Rational Tc Flow Tc System In Out In (ft) dH Loc. Method (ft) (ft) (acres) Flow (min) (cfs) (min) Flow (ft/s) (ft/s) (ft) (ft) (cfs) (cfs) hp di x3x 126.90 117.85 0.7 1.00 0.7 1.5 10.00 0.0 10.00 1.5 3.63 3.63 118.43 118.37 0.07 In Sag AASHTC 13 hp di x2x 126.90 117.85 0.9 1.00 0.9 1.7 12.00 0.0 12.00 1.7 4.98 4.98 119.24 119.12 0.13 In Sag AASHTC 14 . hp di x1x 119.90 113.60 2.0 1.00 2.0 3.7 12.90 0.0 12.90 3.7 3.03 3.03 117.80 117.75 0.05 In Sag AASHTC 15 estimated tc grade hp di 3 117.05 110.40 1.4 1.00 1.4 3.0 10.00 0.0 10.00 3.0 0.95 0.95 117.03 117.02 0.00 In Sag AASHTC 16 estimated tc grade hp cb 33 117.30 110.56 15.7 1.00 15.7 21.2 23.60 0.0 23.60 21.2 2.21 2.21 116.80 116.77 0.02 In Sag AASHTC 17 hp cb 2a 117.50 108.25 1.9 1.00 1.9 4.0 10.00 0.0 10.00 4.0 5.14 5.14 116.87 116.73 0.13 In Sag AASHT 18 estimated tc grade hp cb 29 116.33 110.77 7.4 1.00 7.4 12.2 16.20 0.0 16.20 12.2 3.07 3.07 116.20 116.15 0.05 In Sa AASHT 19 Title: SOUTHEAST ROHNERT PARK s: \...\feb 2010 hydro -a- map.stm Civil Design Consultants 06/30/10 01:55:29 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1 -203- 755 -1666 Project Engineer: B SIMON Storm CAD v5.5 [5.5006] Page 2 of 2 Scenarlo:,,F,�ISTING -100yr Inlet Report CDC Label Ground Elev. (ft) Sump Elev. (ft) Area (acres) C Inlet CA (acres) Local Rational Flow (cfs) Local Tc (min) Known Flow (cfs) System Tc (min) Total System Flow (cfs) V In (ft/s) V Out (ft/s) HGL In (ft) HGLOul (ft) Gravity dH (ft) Inlet Loc. Headlos Method Branch Notes hp ob 2 117.50 108.09 0.0 0.00 0.0 0.0 10.00 0.0 45.37 120.2 6.12 6.12 117.57 117.11 0.46 In Sag AASHT 0 hp cb 3 117.40 108.94 0.0 0.00 0.0 0.0 10.00 0.0 44.73 118.5 6.04 6.04 117.82 117.40 0.42 In Sag AASHTC 0 hp di 2 115.40 107.35 0.2 1.00 0.2 0.6 10.00 0.0 46.32 129.1 6.58 6.58 115.81 115.28 0.52 In Sag AASHTC 0 hp cb 1 117.37 107.66 0.0 0.00 0.0 0.0 10.00 0.0 45.96 129.4 6.59 6.59 116.58 115.80 0.77 In Sag AASHTC 0 hp cb 5 120.90 113.71 0.0 0.00 0.0 0.0 10.00 0.0 42.87 94.4 5.23 5.23 118.41 118.04 0.37 In Sa AASHTC 0 hp cb 6 120.70 113.88 0.0 0.00 0.0 0.0 10.00 0.0 42.09 94.1 4.84 4.84 118.95 118.71 0.23 In Sa AASHTC 0 hp cb 4 117.05 110.21 0.0 0.00 0.0 0.0 10.00 0.0 44.37 97.4 4.96 4.96 117.47 117.05 0.42 In Sag AASHTC 0 hp cb 4a 119.90 112.30 0.0 0.00 0.0 0.0 10.00 0.0 43.49 96.5 4.91 4.91 117.76 117.46 0.29 In Sag AASHTC 0 hp cb 8 121.19 114.30 0.0 0.00 0.0 0.0 10.00 0.0 40.04 90.8 4.62 4.62 121.10 120.06 1.03 In Sag AASHT 1 hp cb 9 121.83 114.45 0.0 0.00 0.0 0.0 10.00 0.0 39.44 51.8 4.12 4.12 121.52 121.32 0.20 In Sag AASHT 1 hp cb 7 120.70 114.03 0.3 1.00 0.3 0.9 10.00 0.0 41.38 93.9 4.78 4.78 119.54 119.25 0.29 In SaC AASHTC 1 hp cb 10 125.68 114.83 0.0 0.00 0.0 0.0 10.00 0.0 38.16 51.7 4.11 4.11 122.55 121.99 0.56 In SaE AASHTC 1 BPE DI 5 134.54 130.09 3.8 0.30 1.1 2.8 15.00 0.0 15.00 2.8 3.67 3.67 130.74 130.67 0.07 In Sa AASHTC 2 bpe cb 9 135.08 128.59 1.4 0.90 1.3 3.8 10.00 0.0 17.30 8.8 4.87 4.87 129.75 129.58 0.17 In Sa AASHTC 2 hp cb 12 128.02 118.30 0.7 0.50 0.3 1.1 10.00 0.0 19.31 10.4 2.12 2.12 122.98 122.92 0.06 In Sag AASHTC 2 hp cb 11 126.93 116.56 0.3 0.50 0.2 0.5 10.00 0.0 21.02 10.3 2.09 2.09 122.76 122.71 0.05 In Sa AASHTC 2 bpe mh 1 137.74 120.54 0.7 0.50 0.3 1.1 10.00 0.0 17.51 9.5 2.01 2.01 123.32 123.26 0.07 In Sa AASHTC 2 hp cb 13 128.80 119.37 0.6 0.50 0.3 0.9 10.00 0.0 18.06 10.0 2.04 2.04 123.14 123.09 0.05 In Sag AASHTC 2 bpe cb 5 135.32 128.91 0.5 0.90 0.5 1.4 10.00 0.0 17.02 6.0 3.97 3.97 130.11 129.77 0.33 In Sa AASHT 2 BPE CB 8 131.08 124.25 1.3 0.90 1.2 3.5 10.00 0.0 37.48 38.3 12.20 12.20 132.58 131.08 1.50 In Sag AASHTC 3 BPE CB 7 131.07 124.98 0.4 0.90 0.4 1.1 10.00 0.0 37.38 36.6 11.65 11.65 135.63 131.07 4.56 In Sa AASHT 3 bpe mh2 133.32 123.78 0.8 1.00 0.8 1.3 32.70 0.0 37.59 39.5 12.56 12.56 134.76 133.32 1.44 In Sag AASHTC 3 hp cb 15 125.92 115.19 1.4 1.00 1.4 2.2 33.80 0.0 37.91 41.4 8.43 8.43 125.23 124.06 1.17 In Sag AASHTC 3 BPE DI 6 133.00 129.60 26.6 0.30 8.0 12.1 37.00 0.0 37.00 12.1 15.39 15.39 134.20 133.00 1.20 In Sa AASHTC 3 BPE CB 6 133.41 128.22 0.3 0.90 - 0.3 0.8 10.00 0.0 37.02 12.5 15.91 15.91 138.20 133.41 4.79 In Sag AASHTC 3 BPE FD 1 130.70 127.35 29.9 0.30 9.0 27.1 10.00 0.0 10.00 27.1 8.64 8.64 131.08 130.70 0.38 In SaE AASHTC 4 HPCB3EWI 129.11 126.48 16.4 0.41 6.7 10.2 36.60 0.0 36.60 10.2 3.26 3.26 129.16 129.11 0.05 In Sa AASHTC 5 BPE DI 4 136.66 131.75 2.5 0.30 0.8 1.8 15.00 0.0 15.00 1.8 3.26 3.26 132.27 132.22 0.05 In Sac AASHTC 6 BPE CB 4 137.42 131.52 0.3 0.90 0.3 0.8 10.00 0.0 15.06 2.5 3.41 3.41 132.21 132.04 0.18 In Sa AASHT 6 hp cb 16 119.90 115.18 2.0 1.00 2.0 5.6 11.40 0.0 11.40 5.6 3.20 3.20 119.95 119.90 0.05 In Sag AASHTC 7 hp cb 18 121.87 118.90 0.7 1.00 0.7 2.1 10.00 0.0 10.00 2.1 2.70 2.70 121.68 121.65 0.04 In SaE AASHTC 8 hp di 19 122.70 114.49 10.6 1.00 10.6 26.1 14.80 0.0 14.80 26.1 8.30 8.30 122.83 122.48 0.35 In SaE AASHTC 9 hp stub 1 121.19 114.32 16.5 1.00 16.5 35.9 18.70 0.0 18.70 35.9 11.41 11.41 121.85 121.19 0.66 In Sa AASHTC 10 hp di x4x 120.70 117.85 0.5 1.00 0.5 1.4 11.70 0.0 11.70 1.4 1.77 1.77 119.98 119.96 0.02 In Sa AASHT 11 hp di 4 117.30 114.41 2.5 1.00 2.5 6.0 15.60 0.0 15.60 6.0 4.87 4.87 117.42 117.30 0.12 In Sag AASHT 12 Title: SOUTHEAST ROHNERT PARK s: \...\feb 2010 hydro -a- map.stm Civil Design Consultants 06/30/10 01:55:34 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1- 203 - 755 -1666 N Project Engineer: B SIMON Storm CAD v5.5 [5.5006] Page 1 of 2 Scenario:, ISTING -100yr Inlet Report CDC Label Ground Sump Area C Inlet Local Local Known System Total V V HGL HGL Ou Gravity Inlet Headlos Branch Notes Elev. Elev. (acres) CA Rational Tc Flow Tc System In Out In (ft) dH Loc. Method (ft) (ft) (acres) Flow (min) (cfs) (min) Flow (ft/s) (ft/s) (ft) (ft) (cfs) (cfs) hp di x3x 126.90 117.85 0.7 1.00 0.7 2.1 10.00 0.0 10.00 2.1 2.70 2.70 119.17 119.13 0.04 In Sag AASHTC 13 hp di x2x 126.90 117.85 0.9 1.00 0.9 2.5 12.00 0.0 12.00 2.5 7.09 7.09 120.85 120.59 0.25 In Sag AASHTC 14 hp di x1x 119.90 113.60 2.0 1.00 2.0 5.3 12.90 0.0 12.90 5.3 4.31 4.31 118.63 118.54 0.09 In Sag AASHTC 15 estimated tc grade hp di 3 117.05 110.40 1.4 1.00 1.4 4.2 10.00 0.0 10.00 4.2 1.35 1.35 117.06 117.05 0.01 In Sag AASHTC 16 estimated tc grade hp ob 33 117.30 110.56 15.7 1.00 15.7 30.2 23.60 0.0 23.60 30.2 3.14 3.14 117.35 117.30 0.05 In Sag AASHTC 17 hp cb 2a 117.50 108.25 1.9 1.00 1.9 5.8 10.00 0.0 10.00 5.8 7.32 7.32 117.77 117.50 0.27 In Sag AASHT 18 estimated tc grade hp cb 29 116.33 110.77 7.4 1.00 7.4 17.4 16.20 0.0 16.20 17.4 4.36 4.36 116.43 116.33 0.10 In Sad AASHTq 19 Title: SOUTHEAST ROHNERT PARK sA ... Veb 2010 hydro -a- map.stm Civil Design Consultants 06/30/10 01:55:34 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1- 203 - 755 -1666 G: Project Engineer: B SIMON StormCAD v5.5 [5.5006] Page 2 of 2 APPENDIX 0 POST PROJECT ATTEUNATED PUBLIC SERVICES PLAN 44 a 5CC t"ttC—r'I"{VJCCi 1 MA r— %_""l Q OFF —SITE BASIN INFORMATION CD co `�.... m N co a- Q 0 I >., Y .__..._ ...................... BODWAY ET = p n � -0 a _0 "_D � Ta 0 °m+Ci m tln m m n fi z W S2 °m+ W 0 na W I v i (0)) Ul 5.pm CA go i 8 i PETALUMA HILL ROAD �ppOFESSfp�,_ . Poer PROJECT 1iYO00Y ""nP CIVIL DESIGN CONSULTANTS, INC. y s ° SE ROHNERT PARK 2=0 P=Avwuok"a204 � " °��, ",o � 80OWAY AND VALLEY 1- U ONV®B soma Ao�a. CA 95103 f �� JULY 2010 AOHNCR'T PAW, CALFOfiiA � � � Nos a ow.rr cr I, a►7� Elam Ll FDXJLlwg i 46 136.5 100 —YR ATTENUATED = STORM ELEV 135.5 13 6 11OT70RM —YR ATTENUATED ELEV 134.5 0 a 0 4 M MINN E p p Lg EVT13p 2 3 a v 20 � ORIFICE 2'0 13 s .y A r Q 129 N Sig 08 .yr T w E., 46 Pond Report Hydraflow Hydrographs by Intelisoive Storage Tuesday, Jul 13 2010, 3:54 PM Pond No. 1 - Alt #2: Orif, Weir [B] [C] Pond Data = 20.00 30.00 Pond storage is based on known contour areas. Average end area method used. Stage / Storage Table = 20.00 30.00 Stage (ft) Elevation (ft) Contour area (sgft) Incr. Storage (cuft) Total storage (cuft) 0.00 132.00 11,000 0 0 1.00 133.00 28,284 19,642 19,642 2.00 134.00 64,411 46,348 65,990 3.00 135.00 78,482 71,447 137,436 4.00 136.00 96,107 87,295 224,731 Culvert / Orifice Structures Storage Elevation [A] [B] [C] Rise (in) = 20.00 30.00 0.00 Span (in) = 20.00 30.00 0.00 No. Barrels = 1 2 0 Invert El. (ft) = 129.10 , 129.20 0.00 Length (ft) = 0.00 350.00 0.00 Slope ( %) = 0.09 0.50 0.00 N -Value = .014 .014 .013 Orif. Coeff. = 0.70 0.70 0.60 Multi -Stage = n/a Yes No Stage / Storage / Discharge Table __,'Stage Storage Elevation Civ A "ft cult ft cfs 0.00 0 132.00 0.00 1.00 19,642 133.00 20.95 2.00 65,990 134.00 24.12 3.00 137,436 135.00 26.93 4.00 224,731 136.00 29.46 Weir Structures [D] Wr A Wr B Wr C Wr D Exfil [A] [B] [C] [D] 0.00 Crest Len (ft) = 3.50 0.00 0.00 0.00 0.00 Crest El. (ft) = 134.60 0.00 0.00 0.00 0 Weir Coeff. = 3.33 3.33 0.00 0.00 0.00 Weir Type = Rect -- -- --- 0.00 Multi -Stage = No No No No 0.00 .000 0.00 No . EAltration = 0.000 in /hr (Contour) Tailwater Elev. = 0.00 ft Note: CulveNOrifice outflows have been analyzed under inlet and outlet control. Weir riser checked for orifice conditions Civ B Clv C Civ D Wr A Wr B Wr C Wr D Exfil Total cfs cfs cfs cfs cfs cfs cfs cfs cfs 0.00 -- -- 0.00 -_ - ___ __ 0.00 20.95 -- - 0.00 - -- - - -- 20.95 24.12 - -- 0.00 - __ __ - 24.12 26.93 - -- - -- 2.95 - -- - -- -- - 29.87 29.46 - -- - -- 19.31 -- -- -- - -- 48.77 S: \SDSK\PROJ \02- 136 \dwg\Hnffiintellisolve\ SERP without OFFSITE - JULY 2010.gpw 47 Scenario: mail, I 1 atten 10yr pond 9 Inlet Report CDC Label Ground Elev. (ft) Sump Elev. (ft) Area (acres) C Inlet CA (acres) Local Rational Flow (cfs) Local Tc (min) Known Flow (cfs) System Tc (min) Total System Flow (mss) V In (ft/s) V Out (ft/s) HGL In (ft) HGI-Oul (ft) Gravity dH (ft) Inlet Loc. Headlos Method Branch Notes hp cb 2 117.50 108.09 0.0 0.00 0.0 0.0 10.00 0.0 109.24 66.0 3.36 3.36 115.67 115.54 0.13 In Sag AASHTC 0 hp cb 3 117.40 108.94 0.0 0.00 0.0 0.0 10.00 0.0 108.06 65.0 3.31 3.31 115.97 115.84 0.13 In Sa AASHTC 0 hp di 2 115.40 107.35 0.2 1.00 0.2 0.4 10.00 0.0 110.97 70.2 3.58 3.58 115.03 114.87 0.15 In Sa AASHTC 0 hp cb 1 117.37 107.66 0.0 0.00 0.0 0.0 10.00 0.0 110.31 70.2 3.58 3.58 115.38 115.15 0.23 In Sa AASHTC 0 hp cb 5 120.90 113.71 0.0 0.00 0.0 0.0 10.00 0.0 106.28 53.7 4.51 4.51 116.82 116.63 0.19 In SaE AASHTC 0 hp cb 6 120.70 113.88 0.0 0.00 0.0 0.0 10.00 0.0 105.28 53.3 4.07 4.07 117.23 117.04 0.19 In SaC AASHTC 0 hp cb 4 117.05 110.21 0.3 0.00 0.0 0.0 10.00 0.0 107.44 55.6 2.83 2.83 116.17 116.03 0.14 In Sag AASHT 0 hp cb 4a 119.90 112.30 0.0 0.00 0.0 0.0 10.00 0.0 106.97 54.8 3.30 3.30 116.43 116.25 0.18 In Sag AASHTC 0 hp cb 8 121.19 114.30 0.0 0.00 0.0 0.0 10.00 0.0 102.69 51.1 3.50 3.50 117.99 117.79 0.21 In Sag AASHTC 1 hp cb 9 121.83 114.45 0.0 0.00 0.0 0.0 10.00 0.0 102.03 34.2 2.86 2.86 118.17 118.07 0.09 In Sag AASHTC 1 hp cb 7 120.70 114.03 0.3 1.00 0.3 0.6 10.00 0.0 104.38 52.9 3.78 3.78 117.55 117.38 0.17 In Sag AASHTC 1 hp cb 10 125.68 114.83 0.0 0.00 0.0 0.0 10.00 0.0 100.73 33.9 2.90 2.90 118.79 118.34 0.45 In Sag AASHTC 1 BPE DI 5 135.30 124.60 0.0 0.00 0.0 0.0 93.00 25.5 93.00 25.5 7.08 7.08 126.57 126.32 0.25 In Sag AASHTC 2 bpe cb 9 135.08 123.28 1.4 0.90 1.3 2.7 10.00 0.0 93.14 26.9 6.35 6.35 125.62 125.29 0.33 In Sag AASHTC 2 hp cb 12 128.02 118.30 0.7 0.50 0.3 0.7 10.00 0.0 94.43 27.5 5.61 5.61 121.94 121.48 0.46 In Sag AASHTC 2 hp cb 11 126.93 116.56 0.3 0.50 0.2 0.3 10.00 0.0 95.08 27.6 5.63 5.63 120.34 119.92 0.41 In Sag AASHTC 2 bpe mh 1 137.74 120.95 0.7 0.50 0.3 0.7 10.00 0.0 93.38 27.1 5.53 5.53 124.73 124.13 0.61 In Sag AASHTC 2 hp cb 13 128.80 119.37 0.6 0.50 0.3 0.6 10.00 0.0 93.98 27.3 5.57 5.57 123.13 122.73 0.40 In Sag AASHTC 2 bpe cb 5 135.30 124.38 0.7 0.90 0.6 1.3 10.00 0.0 93.02 26.1 7.15 7.15 126.50 126.12 0.38 In Sag AASHTC 2 BPE CB 8 131.08 124.25 1.3 0.90 1.2 2.5 10.00 0.0 97.86 3.7 3.98 3.98 125.06 124.92 0.13 In Sag AASHTC 3 BPE CB 7 131.07 124.98 0.4 0.90 0.4 0.8 10.00 0.0 97.61 2.9 3.73 3.73 125.66 125.58 0.08 In Sag AASHTC 3 bpe mh2 133.32 123.78 0.8 1.00 0.8 0.9 32.70 0.0 98.18 4.2 4.13 4.13 124.64 124.50 0.14 In Sag AASHTC 3 hp cb 15 125.92 115.19 1.4 1.00 1.4 1.6 33.80 0.0 98.66 5.1 1.03 1.03 118.83 118.81 0.02 In Sag AASHTC 3 BPE DI 6 133.41 125.71 0.0 0.00 0.0 0.0 0.00 0.0 0.00 0.0 0.00 0.00 125.91 125.91 0.00 In Sag AASHTC 3 BPE CB 6 133.41 125.68 0.4 0.90 0.4 0.8 10.00 0.0 93.00 0.2 1.27 1.27 125.91 125.90 0.01 In Sag AASHTC 3 BPE FD 1 130.70 127.35 2.2 0.90 2.0 4.2 10.00 0.0 10.00 4.2 4.13 4.13 128.16 128.07 0.09 In Sag AASHTC 4 HP CB 3 EW 1 129.11 126.48 2.1 0.90 1.9 4.0 10.00 0.0 10.00 4.0 4.08 4.08 127.27 127.18 0.08 In Sag AASHTC 5 BPE DI 4 136.66 131.75 0.0 0.90 0.0 0.0 7.00 0.0 7.00 0.0 0.00 0.00 131.82 131.82 0.00 In Sag AASHTC 6 BPE CB 4 137.42 131.52 0.3 0.90 0.3 0.7 7.00 0.0 7.00 0.7 2.43 2.43 131.82 131.79 0.03 In Sag AASHTC 6 hp cb 16 119.90 115.18 2.0 1.00 2.0 4.0 11.40 0.0 11.40 4.0 2.25 2.25 119.04 119.01 0.03 In Sag AASHTC 7 hp cb 18 121.87 118.90 0.7 1.00 0.7 1.5 10.00 0.0 10.00 1.5 3.63 3.63 119.48 119.42 0.07 In Sag AASHTC 8 hp di 19 122.70 114.49 10.6 1.00 10.6 18.3 14.80 .0.0 14.80 18.3 5.84 5.84 118.85 118.68 0.17 In Sag AASHT 9 hp stub 1 121.19 114.32 16.5 1.00 16.5 25.2 18.70 0.0 18.70 25.2 8.03 8.03 118.46 118.14 0.33 In Sag AASHT 10 hp di x4x 120.70 117.85 0.5 1.00 0.5 1.0 11.70 0.0 11.70 1.0 3.17 3.17 118.32 118.27 0.05 In Sag AASHT 11 hp di 4 117.30 114.41 2.5 1.00 2.5 4.2 15.60 0.0 15.60 4.2 3.43 3.43 117.36 117.30 0.06 In Sag AASHT 12 Title: SOUTHEAST ROHNERT PARK Project Engineer: B SIMON s: \...\feb 2010 hydro -a- map.stm Civil Design Consultants StormCAD v5.5 [5.5006] 07/09/10 01:27:19 PM © Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1 -203- 755 -1666 Page 1 of 2 cc Scenario: mar;a atten 10yr pond 9 �.xry Inlet Report CDC Label Ground Sump Area C Inlet Local Local Known System Total V V HGL HGLOui Gravity Inlet Headlos Branch Notes Elev. Elev. (acres) CA Rational Tc Flow Tc System In Out In (ft) dH Loc. Method (ft) (ft) (acres) Flow (min) (cfs) (min) Flow (ft/s) (ft/s) (ft) (ft) (cfs) (cfs) hp di x3x 126.90 117.85 0.7 1.00 0.7 1.5 10.00 0.0 10.00 1.5 3.63 3.63 118.43 118.37 0.07 In Sag AASHTC 13 hp di x2x 126.90 117.85 0.9 1.00 0.9 1.7 12.00 0.0 12.00 1.7 4.98 4.98 119.24 119.12 0.13 In Sag AASHTC 14 hp di x1x 119.90 113.60 2.0 1.00 2.0 3.7 12.90 0.0 12.90 3.7 3.03 3.03 116.86 116.81 0.05 In Sag AASHTC 15 estimated tc grade hp di 3 117.05 110.40 1.4 1.00 1.4 3.0 10.00 0.0 10.00 3.0 0.95 0.95 116.18 116.17 0.00 In Sag AASHTC 16 estimated tc grade hp cb 33 117.30 110.56 15.7 1.00 15.7 21.2 23.60 0.0 23.60 21.2 2.21 2.21 116.04 116.01 0.02 In Sag AASHTC 17 hp cb 2a 117.50 108.25 1.9 1.00 1.9 4.0 10.00 0.0 10.00 4.0 5.14 5.14 116.28 116.14 0.13 In Sag AASHTC 18 estimated tc grade hp cb 29 1116.331110.771 7.411.001 7.41 12.2116.201 0.01 16.201 12.213.0713.071115.791 115.751 0.051 In Sal AASHTq 19 Title: SOUTHEAST ROHNERT PARK Project Engineer: B SIMON s: \...\feb 2010 hydro -a- map.stm Civil Design Consultants StormCAD v5.5 [5.5006] 07/09110 01:27:19 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1- 203 - 755 -1666 Page 2 of 2 Scenario: mw"-'` "" atten 100yr pond 9 Inlet Report CDC Label Ground Elev. (ft) Sump Elev. (ft) Area (acres) C Inlet CA (acres) Local Rational Flow (cfs) Local Tc (min) Known Flow (cfs) System Tc (min) Total System Flow (cfs) V In (ft/s) V Out (ft/s) HGL In (ft) HGL Oul (ft) Gravity dH (ft) Inlet Loc. Headlosse Method Branch Notes hp cb 2 117.50 108.09 0.0 0.00 0.0 0.0 10.00 0.0 96.13 99.7 5.08 5.08 116.86 116.57 0.29 In Sag AASHTC 0 hp cb 3 117.40 108.94 0.0 0.00 0.0 0.0 10.00 0.0 95.35 98.2 5.00 5.00 117.56 117.25 0.31. In Sag AASHTC 0 hp di 2 115.40 107.35 0.2 1.00 0.2 0.6 10.00 0.0 97.27 106.2 5.41 5.41 115.45 115.10 0.35 In Sag AASHTC 0 hp cb 1 117.37 107.66 0.0 0.00 0.0 0.0 10.00 0.0 96.84 106.2 5.41 5.41 116.21 115.67 0.53 In Sag AASHTC 0 hp cb 5 120.90 113.71 0.0 0.00 0.0 0.0 10.00 0.0 93.28 81.2 4.72 4.72 118.05 117.80 0.25 In Sag AASHTC 0 hp cb 6 120.70 113.88 0.0 0.00 0.0 0.0 10.00 0.0 92.37 80.6 4.40 4.40 118.47 118.28 0.19 In Sac AASHTC 0 hp cb 4 117.05 110.21 0.3 0.00 0.0 0.0 10.00 0.0 94.94 83.9 4.27 4.27 117.37 117.05 0.32 In Sac AASHTC 0 hp cb 4a 119.90 112.30 0.0 0.00 0.0 0.0 10.00 0.0 93.91 82.9 4.22 4.22 117.59 117.36 0.23 In Sac AASHTC 0 hp cb 8 121.19 114.30 0.0 0.00 0.0 0.0 10.00 0.0 89.97 77.4 3.95 3.95 119.65 119.23 0.42 In Sac AASHTC 1 hp cb 9 121.83 114.45 0.0 0.00 0.0 0.0 10.00 0.0 89.37 51.7 4.12 4.12 120.07 119.88 0.20 In Sac AASHTC 1 hp cb 7 120.70 114.03 0.3 1.00 0.3 0.9 10.00 0.0 91.54 80.1 4.22 4.22 118.89 118.67 0.22 In Sag AASHTC 1 hp cb 10 125.68 114.83 0.0 0.00 0.0 0.0 10.00 0.0 88.08 51.2 4.07 4.07 121.14 120.54 0.60 In Sag AASHTC 1 BPE DI 5 135.30 124.60 0.0 0.00 0.0 0.0 85.00 28.1 85.00 28.1 5.72 5.72 130.93 130.77 0.17 In Sag AASHTC 2 bpe cb 9 135.08 123.28 1.4 0.90 1.3 3.8 10.00 0.0 85.24 30.2 6.15 6.15 129.97 129.62 0.35 In Sag AASHTC 2 hp cb 12 128.02 118.30 0.7 0.50 0.3 1.1 10.00 0.0 86.57 31.1 6.34 6.34 125.16 124.58 0.59 In Sag AASHTC 2 hp cb 11 126.93 116.56 0.3 0.50 0.2 0.5 10.00 0.0 87.14 31.3 6.37 6.37 123.12 122.59 0.53 In Sag AASHTC 2 bpe mh 1 137.74 120.95 0.7 0.50 0.3 1.1 10,00 0.0 85.63 30.5 6.22 6.22 128.70 127.94 0.77 In Sag AASHTC 2 hp cb 13 128.80 119.37 0.6 0.50 0.3 0.9 10.00 0.0 86.16 30.8 6.27 6.27 126.67 126.17 0.51 In Sag AASHTC 2 bpe cb 5 135.30 124.38 0.7 0.90 0.6 1.8 10.00 0.0 85.04 29.0 5.90 5.90 130.69 130.37 0.32 In Sag AASHTC 2 BPE CB 8 131.08 124.25 1.3 0.90 1.2 3.5 10.00 0.0 86.94 16.0 5.56 5.56 126.24 125.97 0.27 In Sag AASHTC 3 BPE CB 7 131.07 124.98 0.4 0.90 0.4 1.1 10.00 0.0 86.78 14.8 6.37 6.37 126.74 126.37 0.37 In Sac AASHTC 3 bpe mh2 133.32 123.78 0.8 1.00 0.8 1.3 32.70 0.0 87.17 16.7 6.74 6.74 125.59 125.25 0.33 In Sac AASHTC 3 hp cb 15 125.92 115.19 1.4 1.00 1.4 2.2 33.80 0.0 87.50 18.0 3.68 3.68 121.64 121.42 0.21 In Sac AASHTC 3 BPE D1 6 133.41 125.71 0.0 0.00 0.0 0.0 85.00 10.4 85.00 10.4 3.31 3.31 127.88 127.82 0.06 In Sac AASHTC 3 BPE CB 6 133.41 125.68 0.4 0.90 0.4 1.1 10.00 0.0 85.07 10.8 3.50 3.50 127.79 127.57 0.22 In Sac AASHTC 3 BPE FD 1 130.70 127.35 2.2 0.90 2.0 6.0 10.00 0.0 10.00 6.0 4.60 4.60 128.32 128.22 0.11 In Sag AASHTC 4 HP CB 3 EW 1 129.11 126.48 2.1 0.90 1.9 5.7 10.00 0.0 10.00 5.7 4.53 4.53 127.43 127.32 0.10 In Sag AASHTC 5 BPE DI 4 136.66 131.75 0.0 0.90 0.0 0.0 7.00 0.0 7.00 0.0 0.00 0.00 131.88 131.88 0.00 In Sag AASHTC 6 BPE CB 4 137.42 131.52 0.3 0.90 0.3 1.0 7.00 0.0 7.00 1.0 2.67 2.67 131.88 131.84 0.04 In Sag AASHTC 6 hp cb 16 119.90 115.18 2.0 1.00 2.0 5.6 11.40 0.0 11.40 5.6 3.20 3.20 119.95 119.90 0.05 In Sag AASHTC 7 hp cb 18 121.87 118.90 0.7 1.00 0.7 2.1 10.00 0.0 10.00 2.1 2.70 2.70 120.24 120.20 0.04 In Sac AASHTC 8 hp di 19 122.70 114.49 10.6 1.00 10.6 26.1 14.80 0.0 14.80 26.1 8.30 8.30 121.39 121.04 0.35 In Sac AASHTC 9 hp stub 1 121.19 114.32 16.5 1.00 16.5 35.9 18.70 0.0 18.70 35.9 11.41 11.41 120.60 119.94 0.66 In Sac AASHTC 10 hp di x4x 120.70 117.85 0.5 1.00 0.5 1.4 11.70 0.0 11.70 1.4 1.77 1.77 119.33 119.31 0.02 In Sac AASHTC 11 hp di 4 1117.301114.41 2.5 1.00 2.51 6.0 15.60 0.0 15.60 6.0 4.87 4.87 117.42 117.30 0.12 In Sac AASHTC 12 Title: SOUTHEAST ROHNERT PARK s: \...\feb 2010 hydro -a- map.stm 07/09/10 01:27:10 PM tit Civil Design Consultants ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1- 203 - 755 -1666 Project Engineer: B SIMON StormCAD v5.5 [5.5006] Page 1 of 2 Scenario: marr`�` "" atten 100yr pond 9 Inlet Report CDC Label Ground Sump Area C Inlet Local Local Known System Total V V HGL HGL Oui Gravity Inlet HeadlosE Branch Notes Elev. Elev. (acres) CA Rational Tc Flow To System In Out In (ft) dH Loc. Method (ft) (ft) (acres) Flow (min) (cfs) (min) Flow (ft/s) fts) (ft) (ft) (cfs) (cfs) hp di x3x 126.90 117.85 0.7 1.00 0.7 2.1 10.00 0.0 10.00 2.1 3.41 3.41 118.65 118.59 0.06 In Sag AASHT ( 13 hp di x2x 126.90 117.85 0.9 1.00 0.9 2.5 12.00 0.0 12.00 2.5 7.09 7.09 120.50 120.25 0.25 In Sa AASHTC 14 hp di x1x 119.90 113.60 2.0 1.00 2.0 5.3 12.90 0.0 12.90 5.3 4.31 4.31 118.46 118.36 0.09 In Sa AASHTC 15 estimated tc grade hp di 3 117.05 110.40 1.4 1.00 1.4 4.2 10.00 0.0 10.00 4.2 1.35 1.35 117.06 117.05 0.01 In SaE AASHTC 16 estimated tc grade hp cb 33 117.30 110.56 15.7 1.00 15.7 30.2 23.60 0.0 23.60 30.2 3.14 3.14 117.35 117.30 0.05 In Sa AASHTC 17 hp cb 2a 117.50 108.25 1.9 1.00 1.9 5.8 10.00 0.0 10.00 5.8 7.32 7.32 117.77 117.50 0.27 In Sa AASHTC 18 estimated tc grade hp cb 29 1116.331110.771 7.4 1.00 7.4 17.4 16.20 0.0 16.20 17.4 4.36 4.36 116.43 116.33 0.10 In Sal AASHTq 19 Title: SOUTHEAST ROHNERT PARK Project Engineer: B SIMON s: \...\feb 2010 hydro -a- map.stm Civil Design Consultants Storm CAD v5.5 [5.5006] 07/09/10 01:27:10 PM C) Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA ±1- 203 - 755 -1666 Page 2 of 2 APPENDIX D POST PROJECT UNATTEUNATED PUBLIC SERVICES PLAN 52 Scenario: F AP unatten -10yr Inlet Report CDC Label Ground Elev. (ft) Sump Elev. (ft) Area (acres) C Inlet CA (acres) Local Rational Flow (cfs) Local Tc (min) Known Flow (cfs) System Tc (min) Total System Flow (cfs) V In (ft/s) V Out (ftfs) HGL In (ft) HGL Oul (ft) Gravity dH (ft) Inlet Loc. HeadlosE Method Branch Notes hp cb 2 117.50 108.09 0.0 0.00 0.0 0.0 10.00 0.0 68.47 89.2 4.55 4.55 116.45 116.22 0.23 In Sag AASHTC 0 hp cb 3 117.40 108.94 0.0 0.00 0.0 0.0 10.00 0.0 67.60 88.4 4.50 4.50 117.02 116.76 0.25 In Sa AASHTC 0 hp di 2 115.40 107.35 0.2 1.00 0.2 0.4 10.00 0.0 69.75 94.2 4.80 4.80 115.29 115.01 0.28 In Sa AASHTC 0 hp cb 1 117.37 107.66 0.0 0.00 0.0 0.0 10.00 0.0 69.26 94.4 4.81 4.81 115.93 115.50 0.42 In Sa AASHTC 0 hp cb 5 120.90 113.71 0.0 0.00 0.0 0.0 10.00 0.0 65.39 74.8 4.47 4.47 117.92 117.69 0.23 In Sa AASHTC 0 hp cb 6 120.70 113.88 0.0 0.00 0.0 0.0 10.00 0.0 64.41 74.7 4.20 4.20 118.30 118.13 0.17 In Sa AASHTC 0 hp cb 4 117.05 110.21 0.3 0.00 0.0 0.0 10.00 0.0 67.15 76.4 3.89 3.89 117.31 117.05 0.26 In Sag AASHTC 0 hp cb 4a 119.90 112.30 0.0 0.00 0.0 0.0 10.00 0.0 66.03 76.0 3.87 3.87 117.51 117.31 0.20 In Sag AASHTC 0 hp cb 8 121.19 114.30 0.0 0.00 0.0 0.0 10.00 0.0 61.85 73.0 3.83 3.83 119.32 118.97 0.35 In Sag AASHTC 1 hp cb 9 121.83 114.45 0.0 0.00 0.0 0.0 10.00 0.0 61.24 51.2 4.07 4.07 119.73 119.54 0.19 In Sag AASHTC 1 hp cb 7 120.70 114.03 0.3 1.00 0.3 0.6 10.00 0.0 63.52 74.7 4.05 4.05 118.68 118.48 0.20 In Sag AASHTC 1 hp cb 10 125.68 114.83 0.0 0.00 0.0 0.0 10.00 0.0 59.96 51.2 4.07 4.07 121.27 120.19 1.08 In SaE AASHTC 1 BPE DI 5 135.30 124.60 78.3 0.62 48.5 52.8 35.70 0.0 35.70 52.8 10.76 10.76 135.89 135.30 0.59 In Sa AASHTC 2 bpe cb 9 135.08 123.28 1.4 0.90 1.3 2.7 10.00 0.0 58.18 42.7. 8.69 8.69 135.35 134.65 0.71 In SaE AASHTC 2 hp cb 12 128.02 118.30 0.7 0.50 0.3 0.7 10.00 0.0 59.13 43.1 8.79 8.79 128.98 127.84 1.14 In SaE AASHTC 2 hp cb 11 126.93 116.56 0.3 0.50 0.2 0.3 10.00 0.0 59.55 43.1 8.78 8.78 125.04 124.04 1.00 In Sa AASHTC 2 bpe mh 1 137.74 120.95 0.7 0.50 0.3 0.7 10.00 0.0 58.46 42.8 8.73 8.73 132.81 131.29 1.52 In Sac, AASHTC 2 hp cb 13 128.80 119.37 0.6 0.50 0.3 0.6 10.00 0.0 58.84 43.0 8.75 8.75 129.79 128.80 0.99 In SaE AASHTC 2 bpe cb 5 135.30 124.38 0.7 0.90 0.6 1.3 10.00 0.0 58.05 41.7 8.49 8.49 135.97 135.30 0.67 In Sa AASHTC 2 BPE CB 8 131.08 124.25 1.3 0.90 1.2 2.5 10.00 0.0 39.88 5.9 4.58 4.58 125.29 125.11 0.18 In Sa AASHTC 3 BPE CB 7 131.07 124.98 0.4 0.90 0.4 0.8 10.00 0.0 39.67 4.7 4.28 4.28 125.85 125.74 0.10 in Sa AASHTC 3 bpe mh2 133.32 123.78 0.8 1.00 0.8 0.9 32.70 0.0 40.16 6.7 4.77 4.77 124.89 124.70 0.19 in Sa AASHTC 3 hp cb 15 125.92 115.19 1.4 1.00 1.4 1.6 33.80 0.0 40.59 8.1 1.65 1.65 121.38 121.33 0.05 In Sa AASHTC 3 BPE DI 6 133.41 125.71 0.0 0.00 0.0 0.0 0.00 0.0 0.00 0.0 0.00 0.00 125.98 125.98 0.00 In Sa AASHTC 3 BPE CB 6 133.41 125.68 0.4 0.90 0.4 0.8 10.00 0.0 35.70 0.4 1.42 1.42 125.98 125.97 0.01 In Sa AASHTC 3 BPE FD 1 130.70 127.35 2.2 0.90 2.0 4.2 10.00 0.0 10.00 4.2 4.13 4.13 128.16 128.07 0.09 In Sag AASHTC 4 HP CB 3 EW 1 129.11 126.48 2.1 0.90 1.9 4.0 10.00 0.0 10.00 4.0 4.08 4.08 127.27 127.18 0.08 In Sa AASHTC 5 BPE DI 4 136.66 131.75 0.0 0.90 0.0 0.0 7.00 0.0 7.00 0.0 0.00 0.00 135.30 135.30 0.00 In Sa AASHTC 6 BPE CB 4 137.42 131.52 0.3 0.90 0.3 0.7 7.00 0.0 7.00 0.7 0.14 0.14 135.30 135.30 0.00 In Sa AASHTC 6 hp cb 16 119.90 115.18 2.0 1.00 2.0 4.0 11.40 0.0 11.40 4.0 2.25 2.25 119.93 119.90 0.03 In Sac, AASHTC 7 hp cb 18 121.87 118.90 0.7 1.00 0.7 1.5 10.00 0.0 10.00 1.5 2.02 2.02 119.81 119.79 0.02 In Sag AASHTC 8 hp di 19 122.70 114.49 10.6 1.00 10.6 18.3 14.80 0.0 14.80 18.3 5.84 5.84 120.18 120.00 0.17 In Sa AASHT 9 hp stub 1 121.19 114.32 16.5 1.00 16.5 25.2 18.70 0.0 18.70 25.2 8.03 8.03 119.79 119.46 0.33 In Sa AASHT 10 hp di x4x 120.70 117.85 0.5 1.00 0.5 1.0 11.70 0.0 11.70 1.0 1.25 1.25 118.89 118.89 0.01 In Sa AASHT 11 hp di 4 117.30 114.41 2.5 1.00 2.5 4.2 15.60 0.0 15.60 4.2 3.43 3.43 117.36 117.30 0.06 In Sal AASHT 12 Title: SOUTHEAST ROHNERT PARK Project Engineer: B SIMON s:\...\feb 2010 hydro -a- map.stm Civil Design Consultants StormCAD v5.5 [5.5006] 07109/10 01:29:24 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1- 203 - 755 -1666 Page 1 of 2 G: Scenario: 17 ? unatten -10yr Inlet Report CDC Label Ground Sump Area C Inlet Local Local Known System Total V V HGL HGL Oul Gravity Inlet Headloss Branch Notes Elev. Elev. (acres) CA Rational Tc Flow Tc System In Out In (ft) dH Loc. Method (ft) (ft) (acres) Flow (min) (cfs) (min) Flow (ft/s) (ft/s) (ft) (ft) (cfs) (ds) hp di x3x 126.90 117.85 0.7 1.00 0.7 1.5 10.00 0.0 10.00 1.5 3.63 3.63 118.43 118.37 0.07 In Sag AASHTC 13 hp di x2x 126.90 117.85 0.9 1.00 0.9 1.7 12.00 0.0 12.00 1.7 4.98 4.98 119.24 119.12 0.13 In Sag AASHTC 14 hp di x1x 119.90 113.60 2.0 1.00 2.0 3.7 12.90 0.0 12.90 3.7 3.03 3.03 117.94 117.89 0.05 In Sag AASHTC 15 estimated tc grade hp di 3 117.05 110.40 1.4 1.00 1.4 3.0 10.00 0.0 10.00 3.0 0.95 0.95 117.05 117.05 0.00 In Sag AASHTC 16 estimated tc grade hp cb 33 117.30 110.56 15.7 1.00 15.7 21.2 23.60 0.0 23.60 21.2 2.21 2.21 117.08 117.06 0.02 In Sag AASHTC 17 hp cb 2a 117.50 108.25 1.9 1.00 1.9 4.0 10.00 0.0 10.00 4.0 5.14 5.14 117.06 116.93 0.13 In Sag AASHTC 18 estimated tc grade hp cb 29 1116.331110.771 7.411.001 7.41 12.2116.201 0.01 16.201 12.21 3.071 3.071116.341 116.291 0.051 In Sal AASHTq 19 Title: SOUTHEAST ROHNERT PARK Project Engineer: B SIMON s: \...\feb 2010 hydro -a- map.stm Civil Design Consultants StormCAD v5.5 [5.5006] V1 07/09/10 01:29:24 PM 0 Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1- 203 - 755 -1666 Page 2 of 2 Scenario: ? unatten -100yr Inlet Report CDC Label Ground Elev. (ft) Sump Elev. (ft) Area (acres) C Inlet CA (acres) . Local Rational Flow (cfs) Local Tc (min) Known Flow (cfs) System Tc (min) Total System Flow (cfs) V In (ft/s) V Out (ft/s) HGL In (ft) HGL Oul (ft) Gravity dH (ft) Inlet Loc. Headlosc, Method Branch Notes hp cb 2 117.50 108.09 0.0 0.00 0.0 0.0 10.00 0.0 49.20 150.5 7.66 7.66 118.15 117.50 0.65 In Sag AASHTC 0 hp cb 3 117.40 108.94 0.0 0.00 0.0 0.0 10.00 0.0 48.69 148.8 7.58 7.58 118.11 117.40 0.71 In Sa AASHTC 0 hp di 2 115.40 107.35 0.2 1.00 0.2 0.6 10.00 0.0 49.96 159.1 8.10 8.10 116.19 115.40 0.79 In Sag AASHTC 0 hp cb 1 117.37 107.66 0.0 0.00 0.0 0.0 10.00 0.0 49,67 159.3 8.12 8.12 117.22 116.01 1.21 In SaC AASHTC 0 hp cb 5 120.90 113.71 0.0 0.00 0.0 0.0 10.00 0.0 47.21 125.8 6.41 6.41 119.29 118.80 0.50 In SaC AASHTC 0 hp cb 6 120.70 113.88 0.0 0.00 0.0 0.0 10.00 0.0 46.62 125.4 6.39 6.39 120.31 119.90 0.41 In SaC AASHTC 0 hp cb 4 117.05 110.21 0.3 0.00 0.0 0.0 10.00 0.0 48.42 128.6 6.55 6.55 117.79 117.05 0.74 In SaC AASHTC 0 hp cb 4a 119.90 112.30 0.0 0.00 0.0 0.0 10.00 0.0 47.75 127.7 6.51 6.51 118.25 117.78 0.48 In SaE AASHTC 0 hp cb 8 121.19 114.30 0.0 0.00 0.0 0.0 10.00 0.0 45.10 122.2 6.22 6.22 122.15 121.19 0.96 In Sag AASHTC 1 hp cb 9 121.83 114.45 0.0 0.00 0.0 0.0 10.00 0.0 44.73 85.6 6.81 6.81 122.34 121.80 0.54 In SaC AASHTC 1 hp cb 7 120.70 114.03 0.3 1.00 0.3 0.9 10.00 0.0 46.09 125.3 6.38 6.38 121.22 120.70 0.52 In SaE AASHTC 1 hp cb 10 125.68 114.83 0.0 0.00 0.0 0.0 10.00 0.0 43.96 85.4 6.80 6.80 126.12 123.12 3.00 In Sag AASHTC 1 BPE DI 5 135.30 124.60 78.3 0.62 48.5 74.9 35.70 0.0 35.70 74.9 1527 15.27 136.48 135.30 1.18 In Sag AASHTC 2 bpe cb 9 135.08 123.28 1.4 0.90 1.3 3.8 10.00 0.0 42.90 71.0 14.46 14.46 137.03 135.08 1.95 In Sag AASHTC 2 hp cb 12 128.02 118.30 0.7 0.50 0.3 1.1 10.00 0.0 43.47 71.9 14.64 14.64 131.18 128.02 3.16 In Sag AASHTC 2 hp cb 11 126.93 116.56 0.3 0.50 0.2 0.5 10.00 0.0 43.72 71.9 14.64 14.64 129.72 126.93 2.79 In Sag AASHTC 2 bpe mh 1 137.74 120.95 0.7 0.50 0.3 1.1 10.00 0.0 43.07 71.3 14.53 14.53 139.92 135.71 4.21 In Sag AASHTC 2 hp cb 13 128.80 119.37 0.6 0.50 1 0.3 0.9 10.00 0.0 43.29 71.6 14.58 14.58 131.56 128.80 2.76 In Sag AASHTC 2 bpe cb 5 135.30 124.38 0.7 0.90 0.6 1.8 10.00 0.0 42.82 69.3 14.12 14.12 137.16 135.30 1.86 In Sag AASHTC 2 BPE CB 8 131.08 124.25 1.3 0.90 1.2 3.5 10.00 0.0 39.47 8.4 2.68 2.68 126.69 126.61 0.08 In Sag AASHTC 3 BPE CB 7 131.07 124.98 0.4 0.90 0.4 1.1 10.00 0.0 39.27 6.7 2.29 2.29 126.78 126.75 0.03 In Sag AASHTC 3 bpe mh2 133.32 123.78 0.8 1.00 0.8 1.3 32.70 0.0 39.96 9.5 3.04 3.04 126.48 126.38 0.10 In Sag AASHTC 3 hp cb 15 125.92 115.19 1.4 1.00 1.4 2.2 33.80 0.0 41.28 11.4 2.32 2.32 125.89 125.79 0.09 In Sag AASHTC 3 BPE DI 6 133.41 125.71 0.0 0.00 0.0 0.0 0.00 0.0 0.00 0.0 0.00 0.00 126.78 126.78 0.00 In Sag AASHTC 3 BPE CB 6 133.41 125.68 0.4 0.90 0.4 1.1 10.00 0.0 35.70 0.6 0.31 0.31 126.78 126.78 0.00 In Sag AASHTC 3 BPE FD 1 130.70 127.35 2.2 0.90 2.0 6.0 10.00 0.0 10.00 6.0 4.60 4.60 128.32 128.22 0.11 In Sag AASHTC 4 HP CB 3 EW 1 129.11 126.48 2.1 0.90 1.9 5.7 10.00 0.0 10.00 5.7 4.53 4.53 127.43 127.32 0.10 In Sa AASHTC 5 BPE DI 4 136.66 131.75 0.0 0.90 0.0 0.0 7.00 0.0 7.00 0.0 0.00 0.00 135.30 135.30 0.00 In Sa AASHTC 6 BPE CB 4 137.42 131.52 0.3 0.90 0.3 1.0 7.00 0.0 7.00 1.0 0.20 0.20 135.30 135.30 0.00 In Sa AASHTC 6 hp cb 16 119.90 115.18 2.0 1.00 2.0 5.6 11.40 0.0 11.40 5.6 3.20 3.20 119.95 119.90 0.05 In Sa AASHTC 7 hp ob 18 121.87 118.90 0.7 1.00 0.7 2.1 10.00 0.0 10.00 2.1 2.70 2.70 121.91 121.87 0.04 In Sac AASHTC 8 hp di 19 122.70 114.49 10.6 1.00 10.6 26.1 14.80 0.0 14.80 26.1 8.30 8.30 122.92 122.58 0.35 In Sa AASHT 9 hp stub 1 121.19 114.32 16.5 1.00 16.5 35.9 18.70 0.0 18.70 35.9 11.41 11.41 121.85 121.19 0.66 In Sa AASHT 10 hp di x4x 120.70 117.85 0.5 1.00 0.5 1.4 11.70 0.0 11.70 1.4 1.77 1.77 120.72 120.70 0.02 In Sa AASHT 11 hp di 4 117.30 114.41 2.5 1.00 2.5 6.0 15.60 0.0 15.60 6.0 4.87 4.87 117.42 117.30 0.12 In Sal AASHT 12 Title: SOUTHEAST ROHNERT PARK Project Engineer: B SIMON s: \...\feb 2010 hydro -a- map.stm Civil Design Consultants Storm CAD v5.5 [5.5006] Ul 07/09/10 01:29:29 PM © Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1- 203 - 755 -1666 Page 1 of 2 Ul Scenario: P ? unatten -100yr Inlet Report CDC Label Ground Sump Area C Inlet Local Local Known System Total V V HGL HGL Oui Gravity Inlet HeadlosE Branch Notes Elev. Elev. (acres) CA Rational Tc Flow Tc System In Out In (ft) dH Loc. Method (ft) (ft) (acres) Flow (min) (cis) (min) Flow (ft/s) (ft/s) (ft) (ft) (cfs) (crs) hp di x3x 126.90 117.85 0.7 1.00 0.7 2.1 10.00 0.0 10.00 2.1 2.70 2.70 120.53 120.50 0.04 In Sag AASHTC 13 hp di x2x 126.90 117.85 0.9 1.00 0.9 2.5 12.00 0.0 12.00 2.5 7.09 7.09 121.73 121.48 0.25 In Sa AASHTC 14 hp di x1x 119.90 113.60 2.0 1.00 2.0 5.3 12.90 0.0 12.90 5.3 4.31 4.31 119.12 119.03 0.09 In Sa AASHTC 15 estimated tc grade hp di 3 117.05 110.40 1.4 1.00 1.4 4.2 10.00 0.0 10.00 4.2 1.35 1.35 117.06 117.05 0.01 In Sa AASHTC 16 estimated tc grade hp cb 33 117.30 110.56 15.7 1.00 15.7 30.2 23.60 0.0 23.60 30.2 3.14 3.14 117.35 117.30 0.05 In Sa AASHTC 17 hp cb 2a 117.50 108.25 1.9 1.00 1.9 5.8 10.00 0.0 10.00 5.8 7.32 7.32 117.77 117.50 0.27 In Sa AASHTC 18 estimated tc grade hp cb 29 1116.331110.771 7.411.001 7.41 17.4116.201 0.01 16.201 17.41 4.361 4.361116.431 116.331 0.10 1 In Sal AASHTq 191 1 Title: SOUTHEAST ROHNERT PARK Project Engineer: B SIMON s: \...\feb 2010 hydro -a- map.stm Civil Design Consultants Storm CAD v5.5 [5.5006] Ul 07/09110 01:29:29 PM 0 Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1- 203 - 755 -1666 Page 2 of 2 CA Attachment B: City of Rohnert Park Southeast Specific Plan Design Guidelines W � \ , - `.� w�_z" QCHITFc + 2001198 - d¥ WILLIAM HEZMALHALCH A R C H I T E C T S I N C. This document has been produced by William Hezmalhalch Architects, Inc. for Willow Glen Partners for the sole use of the Rohnert Park Southeast Design Guideline Document. All rights reserved. No part of this design guideline document and/or images may be reproduced or used in any form or by any other means includinggraphics, electronic file, or mechanical includingphotocopying or any other form ofstorage and retrieval system, without written authorization from William Hezmalhalch Architects, Inc. ©2008 WILLIAM HEZMALILLCHARCHITECTS, INC. „ J 2001198.061 June 2008 TABLE OF CONTENTS A. INTRODUCTION ... ............. ............................... 1 B. COMMUNITY DESIGN PRINCIPLES .. ............................... 1 1. COMMUNITY STRUCTURE ............. ............................... 2 2. PUBLIC SPACES AND STREETSCAPES ...... ............................... 3 C. SINGLE - FAMILY DETACHED RESIDENTIAL, DUET AND DUPLEX DESIGN GUIDELINES 4 1. BASIC PRINCIPLES .................... ............................... 4 2. AUTHENTICITY ...................... ............................... 4 3. ARCHITECTURAL MASSING ............ ............................... 5 CONCEPT.................... ............................... 5 BUILDING FORM .............. ............................... 5 VARIABLE SETBACKS IN ELEVATION ............................... 5 ONE -STORY HOMES ............ ............................... 5 FOUR -SIDED ARCHITECTURAL TREATMENTS ....................... 6 SECOND DWELLING UNIT ....... ............................... 6 4. STREETSCAPE PLOTTING AND MASSING .. ............................... 7 CONCEPT.................... ............................... 7 CORNER LOT HOMES ........... ............................... 7 DUETS AND DUPLEXES .......... ............................... 8 ROOFFORMS ................. ............................... 8 MAJOR STREET EDGE TREATMENT ............................... 8 CONCEPTUAL PLOTTING STUDIES . ............................... 8 5. GARAGE PLACEMENT & TREATMENTS .... ............................ .I.. 10 CONCEPT.................... ............................... 10 VARIED GARAGE PLACEMENT - FRONT LOADED GARAGES ............ 10 VARIED GARAGE DOOR APPEARANCE ............................. 11 OPTIONAL GARAGE TREATMENTS . ............................... 11 ALLEYACCESS ................... .............................11 6. COLORS AND MATERIALS ............. ............................... 12 7. ARCHITECTURAL STYLES ............... ............................... 13 CONCEPT .................... ............................... 13 STYLE SELECTION ............. ............................... 13 COTTAGE STYLE ......... ............................... 14 �, a n> � � � � { , � }$ r �°� � RohnertPark Sozztheart Specific Plan:Deszgrz Guzdelznes 'Draft July 20d� i , W TABLE OF CONTENTS (CON'T) CRAFTSMAN STYLE .. ............................... 16 SPANISH COLONIAL STYLE . ......................... 18 ITALIANATE STYLE ... ............................... 20 FARMHOUSE STYLE .. ............................... 22 TRADITIONAL STYLE . ............................... 24 D. MIXED USE DESIGN GUIDELINES .... ............................... 26 1. SITE PLANNING ................ ............................... 27 ORIENTATION ........... ............................... 27 PARKING AREAS .......... ............................... 27 DRIVEWAYS ............. ............................... 27 SERVICE AND STORAGE AREAS ............................. 27 REFUSE CONTAINERS, UTILITY AND MECHANICAL EQUIPMENT .. 27 2. BUILDING DESIGN ............. ............................... 28 MASSING............... ............................... 28 ROOFFORMS ............ ............................... 28 ENTRY DESIGN .......... ............................... 28 COLOR AND MATERIALS ... ............................... 28 3. OPEN SPACE AND LANDSCAPING . ............................... 29 PLAZAS, PASEOS AND COURTYARDS ......................... 29 SITE ACCESSORIES ........ ............................... 29 LANDSCAPING ........... ............................... 29 FENCE AND WALL DESIGN . ............................... 29 4. SIGNAGE AND LIGHTING ........ ............................... 30 LIGHTING .............. ............................... 30 SIGNAGE............... ............................... 30 y�11 RohYICTtPUrs�oute !lSLaSpeGtfL,��d ��sz. ��, �illT l�CZsnes�'��J'dfBx�ZL1y20i�� ?� ,, .. , ;�' �' � r '`z�� DESIGN GUIDELINES A. INTRODUCTION The Design Guidelines presented in the following sections are intended as recommended principles and practices, which supplement the Development Standards presented in subsection E of Chapter 4 — Land Use of the South East Specific Plan. The purpose of these guidelines is to provide design direction to home builders that will guide the development of high quality living environments. The intent of these guidelines is to ensure that neighborhoods within the SESPA demonstrate individuality, a high quality of design and construction, and value -added appeal. These guidelines are not intended to be overly restrictive or limiting, but to help achieve neighborhoods with a higher level of living quality. B. COMMUNITY DESIGN PRINCIPLES Community design principles include design principles that apply to the design of the South East Specific Plan Area (SESPA) as a whole. These principles are intended to create and define the SESPA as a unique place and establish the overall character or "sense of place ". The following principles ensure that the SESPA not only provides an internally consistent and integrated neighborhood but also ensure that proposed development within the SESPA is sensitive to the existing uses that surround the site. �' �� ". '� > �"'° `'.. �1�1Cid' dSO1 Ll�lCASI.S�leCZfZC�%IlYL�ESigi1 �i1Lt(�CZriICS" .11711 ZG1y2�Q,% 1 1. COMMUNITY STRUCTURE a. Site design, scale of buildings, and the orientation of structures and physical spaces should relate to the surrounding environment on three scales: • Neighborhood: Relating to the area defined by all structures and areas from which it is possible to view the construction; • Contiguous parcels: Relating to all parcels of land touching the parcel on which the construction is located; and • On -Site: Relating to the parcel on which the construction is located b. Neighborhood design, including components such as land use, development intensity, and street layouts should be responsive to natural and institutional elements including: • Urban edges: Providing transition from urban intensities to open space east of Petaluma Hill Road; and • Surrounding uses: Promoting connections with adjacent neighborhoods by integrating street networks, and responding to existing landscape and visual treatments. (General Plan Policy CD- 16) c. Disruption of existing views should be minimized by new development and streets should be maintained as view corridors. (General Plan Policies CD -7 and CD -8) d. To the extent feasible, the street pattern should connect with streets in adjacent developments. e. Residents should be able to easily and safely walk or bicycle to a store, school, or park. f. The pedestrian network should link buildings in residential areas to commercial uses and the park. g. The potentially intrusive impact of motor vehicles upon the privacy of office, other workspace, and residential environments should be minimized while maintaining convenient access between units and parking. � �2 �- � �RohnertPark��outheast S,pecsfic Z?lan pessgis Gusdelanes � �I?zaf� �f�ly 2'b09._ ,__. _� � _ � � ' 2. PUBLIC SPACES & STREETSCAPES a. Design treatment at the edge of urban uses should result in "soft" edges by avoiding the appearance of one continuous solid blank wall along Petaluma Hill Road. This may be achieved in any number of ways including but not limited to the following: • Fronting lots onto Petaluma Hill Road or an adjacent frontage road; • Siding lots onto Petaluma Hill Road and providing short segments of concrete masonry wall as necessary to buffer noise in private yard areas with transitions to transparent or no fencing where sound attenuation is unnecessary (i.e. in front yards and streets); or • Backing lots onto Petaluma Hill Road and providing additional setback area between the wall and the roadway to accommodate a landscaped berm to attenuate noise, providing additional setbacks pursuant to the recommendations of an acoustical study, or providing a concrete masonry wall or fence in combination with a berm and landscape screening. b. Edges of the Specific Plan area should be designed to minimize the visual impact of walls along Valley House Drive and Bodway Parkway by implementing one or more of the following design techniques: • Break up large expanses of wall by introducing decorative precast pilasters with concrete caps spaced at even intervals; • Include materials such as stone, tile, or other rustic materials in the design of walls to add texture and create variety and interest; • Create an undulating setback between the wall and the edge of the roadway to provide articulation in the wall plane; or • Provide additional setback between the roadway and the wall to accommodate trees, shrubs and vines that screen the wall from public view. c. Landscaping, signs, lighting, monumentation and other streetscape design technique along streets should be used to announce gateways into the City and the Specific Plan area. (General Plan Policy CD -3) d. Fencing, walls, monumentation, street lighting, benches, signs, sidewalks, pathways and other street furniture exposed to public rights - of -way, public spaces, common open space areas and other areas visible to the public, should all be given special design considerations to enable the maximum identity and uniqueness of character and should be consistent throughout the SESPA to create a unifying theme; Public art may be considered in large public areas, as appropriate. c. The scale and layout of structures and physical spaces should relate to a human scale and provide ample opportunities for pedestrian and handicapped access and circulation. f. Pedestrian paths should be buffered from fast - moving traffic and large expanses of parking. g. Trees and landscaping should enhance streets, sidewalks, alleys, and parking lots. h. Development sites should be lighted with fixtures which relate to the scale and design of the development and which have an intensity high enough to maintain security and low enough to avoid being a nuisance. nesnu Fn SIDE YARD OR REAR YARD UNDULATING SOUNDWALL LANDSCAPED BERM VARIED SETBACK FROM RIGHTOF -WAY l { t t O a SIDE YARD OR REAR YARD UNDULATING SOUNDWALL LANDSCAPED BERM VARIED SETBACK FROM RIGHTOF -WAY C. SINGLE FAMILY DETACHED RESIDENTIAL, DUET, AND DUPLEX DESIGN GUIDELINES 1. BASIC PRINCIPLES The architecture of a house is comprised of several basic components, regardless of its architectural style. These architectural components consist of elevations, roof forms, garages, and architectural elements. When these components are designed appropriately, a cohesive, yet diverse residential neighborhood environment will be realized. The following architectural criteria have been created to help develop architecture that reflects quality in design, simplicity in form, and contributes to the charm and appeal to the neighborhoods of Southeast Rohnert Park. 2. AUTHENTICITY The design criteria in these guidelines are offered to encourage good architecture through the use of authentic elements. Although detail elements may be used to further convey the character of a style, the overall massing and appropriate roof forms should be used to establish a recognizable style. Proper scale and proportion of architectural elements and appropriate choice of details are all factors in achieving authenticity. 3 x 4 �w� Roh {nert``'Park Southeast Specsfsc,7�la�z D ~,�es � ,�sdeZsn�ess��"Drdit j%zsly 2009; 2 3. ARCHITECTURAL SCALE AND MASSING CONCEPT The following basic elements and criteria are intended to develop variations in appearance and a sense of individuality for each home. Neighborhoods that have nearly identical homes and streets without variation in product placement and form will not be approved in the City's Site Development Review. This section lists architectural massing techniques that will create a quality environment. • Building Form • Variable Setbacks In Elevation • One -Story Homes • Four -Sided Architectural Treatments • Second Dwelling Unit BUILDING FORM Variety in building forms is encouraged to provide diversity and visual interest to the neighborhood street scene. The following recommendations are encouraged when designing front, sides and rear elevations of residential structures: • Articulation of wall planes • Projections and recesses to provide shadow and depth • Combinations of one and two story forms • Variations in roof forms, heights or mass, or the inclusion of roof elements such as dormers and turrets to break up the roof. Dormers should be placed no closer than two feet (2) to building sidewalls. VARIABLE SETBACKS IN ELEVATIONS Where authentic to style, variable setbacks to different parts of the home should be provided to encourage vertical and horizontal massing breaks. Second floors should not completely cover the first floor without providing a single story element or massing relief. Alternative garage locations, from shallow to deep, and alternate plan configurations should be provided within each neighborhood. Front setbacks should be varied and porches should be designed to provide a transition between the structure and the sidewalk. (General Plan Policy CD -20) ONE -STORY HOMES `Nested" Some one -story homes should be provided within the rural estate portion of Living Space the SESPA. For purposes of this Specific Plan, homes with "nested" habitable living space within the roof or attic space may be considered a one -story home. If dormers are used, they should be located entirely within the roof mass and offset a minimum of two feet (2') from the wall plane of the one- story fagade below. Dormers One -Story Home w/ "nested" habitable living space within roof /attic space FOUR -SIDED ARCHITECTURAL TREATMENTS All homes within the SESPA should include four -sided architectural treatments. Four -sided architecture is defined as the inclusion of window surrounds, materials, colors and other architectural details on all publicly visible elevations including side and rear facades. The intent is to avoid the appearance of superficial front elevations. Four sided architecture can be achieved in the following ways: • Wrapping materials and continuing articulation around to the exterior side and rear facades facing public rights -of -way, public open spaces and common open spaces. • Wrapping materials and colors to the interior side elevation a minimum of four feet or to the beginning of the fence line. • Transitioning material changes on an inside corner or at logical transition location such as changes in wall planes, recesses or pop -outs. • Giving particular consideration to the treatment of second stories and roof elements, as these are the elements most visible to public view • Including a variety of window treatments, roof projections, roof forms and architectural details on publicly visible elevations to provide interest. SECOND DWELLING UNIT The appearance and scale of a secondary dwelling unit should be uniform and consistent to the architectural style of the primary residence. Certain restrictions and development standards are emphasized below: • Permitted on Medium Density, Low Density and Rural Estate Lots • Minimum square footage of 275 square feet and a maximum square footage of 1,000 square feet; • Requires one additional off - street parking space, tandem space permitted; • The second unit shall be designed in such a way that the appearance of the combined second unit and primary residence is that of a single - family residence. 4. STREETSCAPE PLOTTING & MASSING CONCEPT Creating a street scene that functions well and has visual variety is a key community objective. Variable front yard setbacks and variable side yard setbacks are encouraged when possible to avoid contributing to a repetitious street scene. As street slopes allow, plans should be reversed and plotted so that garages and entries are adjacent to each other to create an undulating setback. This pattern should occasionally be broken to avoid monotony. To the greatest extent possible, the placement of similar front elevations immediately adjacent to or across the street from one another should be avoided. Consideration should be given to placement of the house on the lot in terms of privacy between adjacent homes. Direct window conflicts across side and rear property lines should be avoided. The floor plans of residential units should have proper orientation, access, and views to adjacent private and public open space. The home and front yard, rather than the garage, should be the primary emphasis of the front elevation. The main entrance should be oriented to the street or otherwise enhanced with architectural elements, lighting or landscaping to promote an active pedestrian environment and clearly define entries. Architectural elements such as front porches, living space and front courtyards should project forward of the garage. CORNER LOT HOMES Neighborhood quality will be enhanced by adding an elevation designed specifically for corner lots, or by enhancing an interior lot plan for use on the corner with additional architectural elements and /or details as found on the front elevation. Varied roof forms are encouraged on corner lot homes and may include front -to -back or side -to -side gables and hipped roofs. Three - dimensional elements such as fireplaces, pop -outs for media niches and bay widows also provide additional articulation to break up the mass of the side elevation. Other elements to consider include: • A corner related front entry door placement; and • A wraparound porch or pop -out side gable. 3 � Rohnert =.Park Sout�heust�Spectlic Plrtn Design Guidelines - Draft,- July 2009 7 DUETS AND DUPLEXES Each should be designed for compatibility within itself, using a blend of building types, compatible architectural styles, and a tastefully balanced palate of colors and materials to avoid clashing and achieve a restful uniformity within each community. The following general concepts should be considered when planning for duplexes and duets: • Design and site buildings with a strong physical relationship to public areas of the community. • Minimize building "ends" and blank, singular planes oriented toward public views. Provide architectural elements on all sides of building. • Design buildings to define outdoor spaces, with floor plans that have a logical and functional relationship between indoor spaces and outdoor spaces. ROOF FORMS Rows of homes seen from a distance or along major roads are perceived by their contrast against the ridge line or background. The dominant impact is the shape of the building and roof line. The building mass and roof lines between plans should be articulated to express a variety of conditions and minimize the visual impact of repetitious flat planes, similar building silhouettes and similar ridge heights. This can be achieved by using a variety of front to rear, side -to -side, gables and hipped roofs and /or by the introduction of a one -story or nested two -story home. Roof line � RaofU Roof Fn;-! Two -Story One -Story 2 -story 2 -story MAJOR STREET EDGE TREATMENT Homes backing up to major streets should be designed to reduce the apparent mass of the building by using some or all of the following techniques: • Incorporate one -story elements as part of the rear elevation; • Provide varied rear yard setbacks; or • Include a variety of window treatments, roof projections, a variety of hipped and gabled roofs and architectural detail to provide variety (See Architectural Massing Section) CONCEPTUAL PLOTTING STUDIES The conceptual plotting studies on the following page provide examples for each of the proposed single family home types and demonstrate the intended application of first and second story massing, variation in setbacks for different portions of the building, variation in garage placement, and the other design guidelines discussed in this Chapter. 8> �Rohnert Park�Southeast Spec��I'Zan�Desrgrr�Gissdeltnes �,3Dr�tft july ;20Q,9 _ ;; CONCEPTUAL PLOTTING STUDIES RURAL ESTATE RESIDENTIAL LOW DENSITY RESIDENTIAL r�• MEDIUM DENSITY (OPTION A -ZIPPER LOTS CONFIGURATION) ❑ Skou skx 1 mmm ED somw 6" W$ft open4_ Cn 13'1 2Y �� I MEDIUM DENSITY (OPTION B - DUET OR DUPLEX) MEDIUM DENSITY (OPTION C -ALLEY 1) MEDIUM DENSITY (OPTION D - ALLEY DUET OR DUPLEX) N h 7m •' °` ➢ MEDIUM DENSITY (OPTION E - ALLEY 2) ffiffl MEDIUM DENSITY (OPTION E - ALLEY 2) S. GARAGE PLACEMENT & TREATMENTS CONCEPT The impact of repetitive, street -front garages can be reduced by using the following techniques: • Varied garage placement from plan to plan; • Varied garage door appearance; • Provide optional garage treatments; and • Alley access VARIED GARAGE PLACEMENT - FRONT LOADED GARAGES Garage placement should be varied between plans within each neighborhood. Plotting plans for individual streets should alternate plans with different garage placement to provide diversity between adjacent homes. A variety of garage placements are available including, but not limited to the following: • Shallow Recessed: A front facing garage that has been setback a minimum of 5' from the adjacent living space facade of the house, excluding porches, in order to reduce the overall visual mass of the garage. • Mid - Recessed: A front facing garage that has been setback behind the adjacent living space facade of the house, excluding porches, or mid- point of the home to allow maximum living space forward while the garage remains attached to the house. • Deep Recessed: An front facing attached or detached garage located near the rear of the lot to achieves more living space toward the street and creates additional usable side yard outdoor space. • Swing -in: A garage that has been oriented sideways to remove the garage door from the front elevation and reduce the visual impact of the garage door on the streetscape. The resulting street - facing garage wall shall be articulated with the same level of detail as the front facade of the home including windows, trim, etc. Swing -in garages are prohibited on lots less than 55' wide and require a minimum back -up area of 24 feet. • Split: A garage that has been split to reduce the length of a single garage door facing the public street. Split garages may occur in combination with swing -in garages except on lots less than 55' wide. If a split garage is combined with a swing -in garage, a minimum back- up area of 24 feet shall be required. • 3 -Car Tandem: A garage that has been designed to provide one parking space in front of another. Tandem garages are permitted to provide additional parking for secondary units or for the use of the primary residence. • Forward: A front facing garage that projects forward beyond the adjacent living space facade of the house. Forward garages should be used less frequently than other garage placements and should be accompanied by a front porch or garden wall /courtyard that extend to or beyond the garage plane when possible. 7 IId�ING 1 SHALLOW RECESS I � G F DEEP RECESS { LIVING SPLIT i 3 -CAR TANDEM 510�� 7Roljnert Par%t,�sozstheas� Spec7fi�lan Dessgn�Gusd�l�nes� ,1?r�ft ,%u /y X009 � P � � � � � ~� MID - RECESS SWING -IN SPLIT /SWING -IN t i FORWARD VARIED GARAGE DOOR APPEARANCE Garage door pattern, windows and /or color should be varied as appropriate to individual architectural styles. Additional treatments are encouraged to buffer direct view of the garage door. Garage doors shall be the roll -up type with a variety of panel break -ups to correspond with the elements of the architectural style. All garage doors shall be recessed a minimum of 12" behind the garage wall plane. OPTIONAL GARAGE TREATMENTS Additional treatments can be added to garages to reduce their visual impact on the streetscene and create diversity between adjacent homes. The following is a list of optional garage treatments: • Porte Cochere: This structure can be added to a deep recessed garage plan to create an additional screened parking space and occasional outdoor private spaces • Single car garage doors: A two car garage door can be replaced with two- single -car garage doors to reduce large expanses of garage doors. • Trellises: A trellis can be secured to the walls surrounding the garage door and planted with vines to soften the impact of the garage door on the streetscene. ALLEYACCESS Lanes lined with homes and garages that have a diverse mixture of facades, varied setbacks, an assortment of roof lines, and several different color schemes are required to ensure an attractive and dynamic lane. Although lanes are thought of as merely a transitional vehicular space, they also provide garage and sometimes direct residential access, trash collection and other daily uses. They may be experienced by homeowners as often as the front entries. Therefore, when designing lanes, both functional and aesthetic issues are to be considered. It is the intent to provide a pleasant experience for daily users by incorporating both in the elements of lane design. In order to achieve this, the following requirements must be met: • Avoid a multi- storied, canyon -like effect within the lane by providing varied massing, vertical and horizontal offsets of primary architectural elements and roof lines. Where possible, vary ground floor building setbacks to provide undulation in the line of garage doors. • Articulate rear building elevations with style- appropriate window trim, elements and details. • Vary garage door appearance by using door patterns, colors, and windows appropriate to individual architectural style. • Design and locate rear privacy walls and pedestrian gate entries to provide ease of access to the rear yard, allow sufficient dimension for landscape requirements and screen trash can storage from view. �� ` ��, � � �` � � � RohnertPa k�5out�ieast SRe�fic Plan Deli Guidelines ��bra 6. COLORS AND MATERIALS A variety of materials and colors provides diversity and visual interest to the streetscene while unifying homes within each neighborhood. Color palettes should be selected to reflect traditional architectural themes or may be slightly varied to convey a modern interpretation a. Each elevation should have a minimum of three colors; for example, one primary color, one trim color and one accent color. b. Individual color schemes should be appropriate to the architectural styles with a harmonious selection of accent materials, roof profiles and colors. c. Each neighborhood should have a minimum of two different roofing colors. d. No adjacent single - family home should have the same color scheme. e. Color and materials should be carefully applied to each home to convey the impression of high quality architecture and create depth and contrast for design features and building articulation. f. Materials, textures, and colors employed should be compatible and consist of high quality building materials suitable for the manner of construction proposed. 7. ARCHITECTURAL STYLES CONCEPT The style information on the following pages provides the builder and design consultants with the tools to create attractive authentic architectural designs that embrace the integrity of each style. Each architectural style is defined by elements that are typical characteristics of that style. (See individual style matrices for appropriate required elements). STYLE SELECTION The design character of the neighborhoods will be one of continuity, individuality and compatibility. These concepts bring about neighborhood designs that "feel right" and are embraced by those who live and work in the community. The architectural styles selected have a regional historic background and /or context in keeping with the character of Rohnert Park. Each neighborhood builder shall select and utilize a minimum of three of the following architectural styles: • Cottage • Craftsman • Spanish Colonial • Italianate • Farmhouse • Traditional r � �` � `� � � `� �` � j��E r RohnerC Park Southeast S ecs �PZanq.Den � Gusde�ines� �Dra � uZ 200,9 13 COTTAGE STYLE Cottage is a picturesque style derived from medieval Norman and Tudor domestic architecture. The resulting English and French inspired "cottage" became extremely popular nationwide after the adoption of stone and brick veneer techniques in the 1920's. Although the cottage is looked upon as small and not costly, it was recognized as one of the most popular styles in suburban America. The design of the home was reflected in the rural setting that they evolved in. Roof pitches are typically steeper than traditional homes and comprised of gables, hips and half -hip roof forms. The overhangs are minimal with either tight fascias or rafters exposed or trimmed with a fascia board. The primary material is stucco, typically used with stone and /or brick, and occasionally wood as an accent. The most recognizable details are the stucco accents of recessed elements and swooping sculptured walls at the front elevation and around the chimney stack. r 14 ; ``Rohtsm Parh Southeast S e c Plan Deli �`Gusdelsnes " °Dra '^` uI 2009 COTTAGE STYLE GUIDELINES Element I Description Form Roof Walls Windows Details Colors • Asymmetrical 1 -2 story massing with some recessed 2nd floor area (may be recessed behind front porch) • Main roof hip or gable with intersecting gable roofs • Front facing gable with steep roof and possible swooping roof line • 5:12 to 8:12 roof pitch • 0" to 12" eaves with tight rakes • Smooth flat or shake appearance concrete tiles with slate or shake appearance or premium grade composition shingle • Stucco with light to medium sand finish • Wood or cementitious wood siding may be used as an accent in eaves • Possible stone or brick accents • Vertical multi -paned windows (true divided lites or inserts) on front, sides and rear elevations where visible at street levels. • Simple 4" min. window and door trim -wood on stone or siding, foam on stucco • Shutters • Surface mounted fixtures on front elevations must complement architectural style • Possible balcony with wood or wrought iron detailing as an attachment to the building plane • Primary: Colors are soft, mid -value hues of beige, tan, yellow, grey and green • Roof: Shades of gray, blue, green, brown, beige and plum emulate the natural slate roofs of Europe • Trim: Soft, tinted whites, which are in subtle contrast to the body color. • Accents: Muted blue, green and red are use for en try doors, shutters and other features. • Masonry: When used, may be either brick or stone, but must always have a rusticated appearance. CRAFTSMAN STYLE The Craftsman style was inspired by the English Arts and Crafts Movement of the late 19th century. The style stressed the importance of insuring that all exterior and interior elements receive both tasteful and "artful" attention. The movement influenced numerous California architects such as Green and Green, and Bernard Maybeck. The resulting Craftsman style responded with extensive built -in elements and by treating details such as windows or ceilings as if they were furniture. The overall affect was the creation of a natural, warm and livable home. The style is further characterized by the rustic texture of the building materials, broad overhangs with exposed rafter tails at the eaves and trellises over the porches. In California, the Craftsman style spun out of bungalows that were the production home of the time. This unique predominant look promoted hand crafted quality; thus the name Craftsman. CRAFTSMAN STYLE GUIDELINES Element I Description Form • 2 -story massing, with a significant single story element Roof • Basic gabled roof - side to side with cross gables • 3:12 to 4:12 low roof pitch • Unenclosed eave overhang ( 18" to 30 ") with elaborate exposed rafter tails • Decorative ridge beams and purlins • Triangular knee braces • Smooth flat or shake appearance concrete tiles or premium grade composition shingle or shake Walls • Horizontal wood or cementitious wood siding • Plain wood shingle siding • Stone or brick base • Stone and/or brick accent on facade, balustrades, pilasters and chimneys • Stucco with smooth or light to medium sand finish as secondary material only Windows • Ribbon windows - 3 or more ganged • Single hung windows • Mullion upper half of window • Simple 4" min. window and door trim - wood on siding or shingle, foam on stucco Details • Black wrought iron or copper accents • Stone and/or brick accents • Wood entry door with basic geometric pattern • Porches covering the front door area or the full front elevation may be used and are typically supported battered pilasters with upper columns and enclosed by a balustrade Colors • Primary: Earth tones ranging from warm greens and light browns to tans and ochre yellows • Roofs: Shades of warm green or brown • Trim: Earth tones ranging from warm greens and light browns to tans and ochre yellows • Accent: colors are rich, light earthy shades of green, red, and brown • Masonry: If used, brick should have a rustic, handmade look. Stone should be smooth, rounded shape river rock, or have a more textural, rubble like appearance. Rnhnert Park Southeast 5pecsfic flan Design Guzdelznes Draftzcly 20p`1 1% SPANISH COLONIAL STYLE Spanish Colonial, also known as Spanish Eclectic is an adaptation of Mission Revival enriched with additional Latin American details and elements. The style attained widespread popularity after its use in the Panama - California Exposition of 1915. The simple courtyards of the Spanish Colonial heritage with hanging pots, a flowering garden and sprawling shade trees are hardly surpassed as foreground design elements. Further architectural distinction was established through the use of tile roofs, stucco walls, heavily textured wooden doors and highlighted ornamental ironwork. The plans were informally organized around a courtyard with the front elevation very simply articulated and detailed. The charm of this style lies in the directness, adaptability and contrast of materials and textures. SPANISH COLONIAL STYLE GUIDELINES Element I Description Form • Asymmetrical 1 and 2 story massing with one strong element Roof • 4:12 to 5:12 roof pitch • 12" to 18" overhang • May use tight rake and exposed rafter tail as an accent • Simple hip or gable roof with one intersecting gable roof • Barrel or `S' shape concrete tiles Walls • Stucco with smooth or light to medium sand finish • Brick or ceramic Spanish tile may be used as decorative accent material Windows • Vertical multi -paned windows (true divided lites or inserts) on front, sides and rear elevations where visible at street levels • Simple window and door trim- wood or stucco over foam, or recessed 4" to 6" with no trim • One or two accent windows recessed on front elevation Details • Stucco over foam window and door trim • Arched stucco column porches • Surface mounted fixtures on front elevations must complement architectural style • Optional stucco garden wall /courtyard consistent with color of main residence • Balconies may be used to break up the front mass of the building and should be articulated with wood or wrought iron details • Porches may be wrapped around courtyard elements and are typically accented by arches, columns, walls and gates • Entry; deeply recessed doorway or covered and enclosed by porch or courtyard • Simple door with lites or stucco trim and may be articulated with side lites Colors • Primary: color range in off - whites or beige tones to light tans. • Roofs: subtle terra -cotta blends or similar colors • Trim: Lighter wood tones. Actual wood members can be painted in darker colors, simulating the look of stain • Accent: Colors are deep jewel tones as well as rich earth tones. f RohnerPa kSoutheast Specific Plan Design Gutdelznes Draft duly X00 19 ITALIANATE STYLE The Italianate style began as part of the picturesque movement, a shift away from a strict classical direction in art and architecture. Although few American architects could afford to travel to Italy in the mid - nineteenth century, the European influence came through English buildings and pattern books. Old world prototypes were refined, adapted and embellished, evolving into a classic revival period style. Although the new period style generated less formality, traditional classical elements such as the symmetrical facade, squared tower entry forms, arched windows, quoined corners and bracketed eaves persisted as the enduring traits of this style. When cast iron became a popular building material, it became a part of the Italianate vocabulary, embellishing homes with a variety of designs for porches, balconies, railings and fences. Of the three styles of Italian homes built in America; the Villa, Italianate and Brownstone, the Italianate became the most popular. Its sophisticated facade and graceful details made it easily recognizable, but the decorative brackets that articulate the eaves became such a prominent feature that it sometimes was known as the "Bracketed" style. ;:- > 20Ro�inertarkSouthettsS ees c Plan best Gurdelaneslr�fi �Jtt� 2009 , ITALIANATE STYLE GUIDELINES Element I Description Form • 2 -story massing with a vertical and a horizontal break, combined with single story elements Roof • Main hip roof with minor intersecting hip roofs • 31/2:12 to 41/2:12 roof pitch • 12 "- 24" overhangs, stucco soffit or decorative brackets • Barrel or `S' shape concrete tile, or smooth flat concrete tiles Walls • Stucco with fine to light sand finish or light lace finish • Cut stone may be added as an entire surface material or as entry and corner accents Windows • Vertical multi -paned windows (true divided lites or inserts) at front elevations, often ganged in pairs • Single -paned windows or multi -paned windows (may be true divided lites or inserts) on side and rear elevations where visible at street levels • Simple 4" min. window and door trim- wood or stucco over foam, or recessed 4" to 6" without trim • Arched and curved window tops used predominately above rectangular windows Details • Tapered round or square simple columns • Pronounced entry with detailed doors surround, and wood or stone, or a portico or formal, square, vertical porch • Front doors detailed with arched transom and side lites. • Belt course trim • Arched windows • Optional stucco garden wall/courtyard consistent with color of main residence • Balconies with highly decorative wrought iron elements or concrete with balustrades Colors • Primary: Rich, saturated hues of yellow, tan, salmon • Roofs: Terra - cottas, browns, tans and warm reds, with complex blends encouraged • Trims: Deeply tinted whites, lighter wood tones. Darker secondary trim palette may be used for a more traditional appearance • Accents: Emphasized with bolder, jewel tones, as well as rich earth tones. A variety of green and red hues are prevalent although some browns, blues, and even black are allowed • Masonry: If used, stone should be textural, rubble like appearance for a rustic look or limestone block for a formal look. T KaF t Rohnert Punt Southeast Specsfic Plan Design Guidelines Drdit July 200�s 21 FARMHOUSE The American Farmhouse represents a practical and picturesque country house. Its beginnings are traced to both Colonial styles from New England and later the Mid -west. As the American Frontier moved westward, the American Farmhouse style evolved according to availability of materials and technological advancements, such as balloon framing. Predominant features of the style are large wrapping front porches with a variety of wood columns and railings. Two story massing, dormers and symmetrical elevations occur most often on the New England Farmhouse variations. The asymmetrical, casual cottage look, with a more decorated appearance, is typical of the Midwest American Farmhouse. Roof ornamentation is a characteristic detail consisting of cupolas, weather vanes and dovecotes. �22 ro 1%hnert Park Southeust�SpecsficPlan Design Guuli�nes�E IDraft "Jyly 2009 � ` �`' %� �� g � < FARMHOUSE STYLE GUIDELINES Element Description Form Roof Walls Windows Details Colors • Simple plan form massing and simple roof design • 6:12 to 12:12 roof pitch • Front to back main gable roof • 12 " -16" overhangs with open eaves Concrete tiles with smooth flat or shingled appearance • Horizontal siding may be combined with stucco • Vertical material changes must occur at an inside corner . • Vertical multi -paned windows (true divided lites or inserts) at front elevations • Multi -paned windows (true divided lites or inserts) on side and rear elevations in highly visible public view areas • Porches with simple wood columns and wood railings • Minimum 2x4 window and door trim - wood on siding, foam on stucco • Surface mounted fixtures must complement architectural style • Garage door patterns to compliment style • Shutters and layeres header trims are front elevation • Cupolas or dormers • Primary: Whites of light tinted colors • Roofs: Shades of grey and brown • Trims: Whites or light shades complementary to field color • Accents: Light or dark shades in contrast to field color ;5 y Ro�inert Park �outieitst 3peczfzc Plan Design Guidelines =Draft )ssdy 2QQ9 23 TRADITIONAL STYLE The American Traditional style, which evolved in the early twentieth century, was influenced by American Colonial styles as formal as Georgian Revival and those as simple and functional as Cape Cod, New England Colonial, and Farmhouse. With respect to American traditions and specific regional culture, the Colonial Revival vocabulary of white - painted columns, clapboards and shuttered windows were combined with the less symmetrical, unpretentious massing and functional forms of the Cape Cod and farmhouse. Combined one and two story massing with single story wings, gabled roofs with dormered windows, or occasional saltbox roof forms were favored solutions, later becoming classic forms of the traditional style. These inspirations yielded a truly American inspired architecture for a more relaxed, yet still dignified style that would become the new American dream. The characteristic elements and details of this style further demonstrate the blend of American Colonial influences. Use of brick or wood siding with somewhat formal character elements and generous trim above the doors and windows is typical. Some of these character details include dormered windows , wood shutters, rounded or squared columns at porch or entry statement and decorative broken pediment trim and painted wood vents in gables. TRADITIONAL STYLE GUIDELINES Element I Description Form FRO ..i Walls Windows Details Colors • Asymmetrical massing with a vertical and a horizontal break • 5:12 to 12:12 roof pitch • Front to back gable or hip roof with intersecting hip or gable roof • 16" to 24" overhangs • Concrete roof tiles with smooth flat or shake appearance • Horizontal siding may be combined with stucco • Vertical material changes must occur at an inside corner • Vertical multi -paned windows (true divided lites or inserts) at front elevations • Multi -paned windows (true divided lites or inserts) on side and rear elevations in highly visible public view areas • Simplified cornice trim at gable ends • Header window wood accent trim • 2'x 6' window and door trim - wood siding, foam on stucco • Surface mounted fixtures that compliment architectural style • Full wood porches or wood balconies • Garage door pattern to compliment style • Brick veneer chimney wrap • Square wood columns • Primary: Whites, off - white, dark or light colors • Roofs: Shades of warm grey and brown • Trims: Whites, light of dark colors contrasting with field color • Accents: White, light, or dark colors in contrast or harmony with field color � � r'�� hl � � � k � z � ` � � �Rohrtert`Park Southeast Specsfic�Plan D'engn Guxlelsn'er � Drdit , juYy 2QQ.'s�; "25 D. MIXED USE DESIGN GUIDELINES The mixed -use land used within the Southeast Specific Plan provides an opportunity to develop a unique pedestrian oriented community. Mixed -use developments are much like small villages, combing living environments with retail, neighborhood services, or office space in one centralized location. Mixed -use developments also provide the opportunity to create distinctive pedestrian spaces and community gathering places by utilizing two and three story structures to create strong vertical edges. The key to successful place making within mixed -use developments is the selection of an appropriate architectural theme and style. Inspiration and guidance in the selection of an architectural theme should be drawn from the styles selected for the surrounding single - family neighborhoods as well as from existing traditional neighborhoods within Rohnert Park. Traditional neighborhood styles provide a character in keeping with the design intent of the Southeast Specific Plan and bring about architectural designs that "feel right" and are embraced by the greater community. A consistent architectural character should be used throughout the mixed -use development to create a sense of continuity. Acceptable styles generally respond to the region's climate including such features as shade windows, outdoor circulation, and outdoor courtyards or plazas, recessed window frames, awnings, arcades, loggias, and trellises. Related elements, such as trellises, planters, light- standards, windows, doors, etc. should also adopt detailing that is compatible with the selected architectural style. The mixed -use community will likely consist of at least two or more buildings. Some buildings may be entirely retail, some entirely residential or some a combination of both. Regardless of use, individual buildings within the mixed -use community should be designed for variety and compatibility with one another by using a creative blend of architectural treatments, variety in building placement and a carefully balanced color palette that provide subtle yet noticeable contrast. The following Mixed -Use Design Guidelines Section is organized into the following components: • Site Planning • Building Design • Architectural Details • Open Space and Landscaping 1. SITE PLANNING ORIENTATION Buildings should be designed and sited to provide strong physical relationships to the public streets, common open spaces, paseos and other pedestrian areas. Buildings should be oriented for best visibility from Bodway Parkway and Valley House Drive. Windows and entries should face both streets, avoiding blank walls which could dominate public views. Commercial or office spaces with entries not visible from these streets should be oriented towards pedestrian open spaces such as plazas, courtyards, or paseos. Streetside buildings, or those with no parking separating them from the street, should use windows, landscape elements, and /or entry features to soften the building's appearance from the street. Chapter 4 of the South East Specific Plan provides specific setback requirements for mixed -use developments. Mixed -use buildings should not be more than 100 -feet long without a pedestrian plaza or walkway breaking the building mass and connecting the parking lot with the street. On corners, buildings should utilize massing elements to anchor the corner. PARKING AREAS Parking lots should generally be placed away from streets and /or behind buildings. Street frontages should not consist of a continuous parking lot, but should be broken up with buildings, landscaping, plazas, and other pedestrian features if possible. Any parking along street edges should be set back with a landscaped buffer to minimize the dominant feeling of the automobile along the street. No more than six (6) consecutive spaces shall be allowed in any row of parking without a tree well or finger. DRIVEWAYS The site shall be provided with a limited number of driveways to reduce the traffic impact along Valley House Drive and Bodway Parkway. Pedestrian crossing distances should be minimized at driveways. To increase safety for pedestrians, a raised median as a pedestrian island should be provided between travel lanes, especially those entries with more than one lane in any direction. Driveways should be paved with asphalt, concrete or an enhanced paving material such as brick or concrete block. SERVICE AND STORAGE AREAS Loading areas, garages and storage areas are to be located behind or to the side of buildings, siding onto secondary access and not primary streets. These features must be screened with walls and landscaping as much as possible from public view of streets, residences, pedestrians walkways and connecting trails. Loading docks and storage areas should not conflict with pedestrian walkways. REFUSE CONTAINERS, UTILITYAND MECHANICAL EQUIPMENT Refuse containers and equipment should be easily accessed by service vehicles but screened from view of the streets, parking lots, and connecting walkways through roof forms, walls and /or landscaping. Screening details should incorporate elements that are compatible with the architectural style of the building. Proper landscaping, including trellises, also may help to screen these elements. Equipment and enclosures shall not be located near pedestrian walkways. x -` RohnertParkSoutheastSpectfzcPlan 1�engn Guulelsnes Draft �uly2f109 2� 2. BUILDING DESIGN MASSING With larger buildings, appropriate massing becomes more important to maintain the human-scale of the development and create a visually pleasing environment. Facades that are visible from adjacent streets or walkways should display visual interest by using architectural elements that break up the massing of large buildings, such as windows, arcades, awnings, porticos, and other architectural features. Stepped buildings, height changes and setback variations further reduce the apparent mass of a building as well as indicate entries and store locations to customers. Tower elements or monumental features are encouraged at focal points, such as corners, plazas, major entrances, or where walkways meet streets. ROOF FORMS Hipped and gable roofs are encouraged. Roof pitches should be compatible with the architectural style of the building. Flat roofs should vary in height and be accompanied by cornice, trim or other accent features. ENTRY DESIGN Building entries should be prominent and easily identified. Various elements can be used to enhance the entry features including massing variation, materials and color change, change in roof form, and awnings. For smaller commercial buildings, as part of a cluster or strip, arcades, awnings, and simple signage may be acceptable entries. COLORS AND MATERIALS Recommended materials include stucco, exterior plaster, brick, wood siding, tile, or stone. Exterior materials that appear pre - fabricated are not recommended. Selected materials and detailing should have an enduring appearance and should be compatible with the architectural style of the building. Special materials, such as ceramic tile, granite, stone, and marble, are encouraged on the base of buildings that face streets or connecting walkways, especially adjacent to major entries. Roofing materials that are generally acceptable include metal standing seam, asphalt shingles, concrete tile, ceramic tile and slate or slate -like materials. Roofing materials and colors should also be compatible with the architectural style of the building. Color selection should be consistent with the selected architecture style and should be selected to provide interest and variety to the streetscene. Color schemes should include at least 2 -3 compatible colors (i.e. One primary color with additional color(s) for trim and accents. . t w. .......... 3. OPEN SPACE AND LANDSCAPING PLAZAS, PASEOS AND COURTYARDS Plazas, paseos and courtyards are encouraged to emphasize a pedestrian- friendly environment by creating locations within the mixed -use development that allow people to gather. These open space amenities create a more inviting feeling to pedestrians, allowing them to feel safe from the vehicular dominated parking lot. These outdoor places may include water features, landscaping, and other elements to create a comfortable place to sit. Plazas and courtyards are encouraged where high levels of pedestrian activity are expected, such as adjacent to major entrances and nearby uses that allow for more interactivity with the plaza such as delis, cafes, restaurants, bakeries and other food services, and entries to residential uses above. Pasoes and Walkways throughout the mixed -use development should connect the various buildings to each other and to the sidewalks along Bodway Parkway and Valley House Drive. Use of trellises, landscaping, sitting areas and the site planning of buildings adjacent to one another will encourage pedestrian activity within the mixed -use area. Public art should be included in public spaces, where appropriate, to enhance the space. SITE ACCESSORIES Site accessories, such as recycling bins, bike racks, litter cans, planters, and benches, should employ materials and provide an architectural character consistent with the overall project. These accessories should be graffiti- resistant with materials that are easy to clean and paint. LANDSCAPING Landscaping helps to soften the feel of the buildings and parking areas while enhancing the visual quality of the site. The following landscaping techniques may be used: • Provide special landscaping treatment at all project entries and building entries. • Provide shade /canopy trees within parking areas. • Use plants to define outdoor spaces such as edges, outdoor plazas, or movement paths between parking and building entrances. • Chosen plantings should provide a continuity of form across the entire project. FENCE AND WALL DESIGN Chain link fencing, barbed wire, corrugated metal fencing and "tennis windscreens" are not permitted. Fences and walls should be built with attractive, durable materials, including (but not limited to) redwood, cedar, wrought iron, textured concrete block, brick, or formed concrete with reveals. Fences or walls should be consistent with architectural style, materials and designs used throughout the project. Walls and fences should not exceed a height of six feet (6'). Avoid long expanses of uninterrupted fences and walls. Use of an opening, planter box, material change, pilaster or post is acceptable. Openings shall be provided to connect walkways directly to the street and to allow pedestrians to avoid long, inconvenient walking paths. These pedestrian portables should be announced by pilasters, trellis, special landscaping, or other special features. l.t � � � ' � �„ x � � � , � ��Rvhnert�jP�tr/ Southeast Specs 3Plrtn Dengn�GtY�ltnes '�Dra. fi �fu�2Q0� � s29 4. SIGNAGE AND LIGHTING LIGHTING Lighting should provide adequate illumination throughout the site during the nighttime hours while minimizing the impact on surrounding residential uses. Lighting fixtures within the mixed use development should be designed to be compatible with the architectural styles selected for the area. Street lighting along public rights -of -way should be consistent with the remainder of the Specific Plan Area. At a minimum, all light standards should have an attractive base and top; overhead "cobra head" standards are not permitted excepet along Bodway Parkway, where they already exist. Buildings and landscaping can be illuminated indirectly to create a strong positive image. Along pedestrian walks, lighting should provide appropriate illumination at a human scale without glare. Lighting within larger parking lots should provide safe visibility. SIGNAGE Signage within the mixed use development should be carefully coordinated so that it conveys necessary information without dominating the streetscene. Signage shall be subject to the City of Rohnert Park's Zoning Ordinance and shall be subject to review and approval by the City of Rohnert Park. Signage should be consistent in size and location throughout the mixed use development. Attachment C: General Plan Analysis Southeast Specific Plan General Plan Analysis The purpose of this General Plan Analysis is to demonstrate the Specific Plan's consistency with the General Plan by providing summary-level information on the ways in which the Southeast Specific Plan is responsive to General Plan policies. Each applicable General Plan Policy is listed below, followed by a brief explanation of how the Specific Plan (SP) relates to each General Plan policy. A. Land Use GOALS: LAND USE LU -G Require preparation of specific plans for strategic new growth areas with complex land use programs. SP Relationship: The present Specific Plan, having been prepared expressly for the purpose of addressing the planned development of the Southeast Specific Plan area, is fully responsive to this goal. POLICIES: LAND USE USE CLASSIFICATIONS AND LAND USE PROGRAM LU -2 Require sites designated as Mixed Use — University District, City Center, Southwest Shopping Center, and near Bodway ParkwayiValley House Road —to be developed with a variety of residential and non - residential uses, in accordance with the delineated land use program for the Specific Plan areas in this chapter. SP Relationship: The SESPA, as a designated site for Mixed Use, is to be developed with a variety of residential uses, the non - residential uses include a neighborhood park, as required by the General Plan. Other non- residential uses include retail, commercial and related activities, depending upon available market supports. LAND USE PATTERN LU -6 Locate new Medium and High Density Residential development adjacent to parks, creekways or other open space, in order to maximize residents' access to recreational uses, or adjacent to a Mixed Use or Neighborhood Commercial Center, to maximize access to services. SP Relationship: The Conceptual Land Use and Circulation Plan for the SESPA, shown in Figure 4 -1, places medium and higher density housing adjacent to a park as well as the Mixed -Use site. LU -7 Encourage new neighborhood commercial facilities to be located to maximize accessibility to all residential areas. SP Relationship: The site layout is responsive to both the General Plan's designation of the area to be used for Mixed Use as well as the residents' needs for access to these types of facilities by providing a street and sidewalk network for vehicular, pedestrian and bicycle circulation. LU -8 Require that residential development projects comply not only with the stipulated maximum density for the range, but the minimum density as well. SP Relationship: The range of densities contemplated for development in the SESPA is generally consistent with the direction provided by the General Plan. SPECIFIC PLAN AND OTHER AREAS LU -1 OA Coordinate the adoption of each specific plan in a manner that provides for the systematic implementation of the General Plan, as is consistent with the growth management and public facilities goals and policies of this General Plan. In order to carry out this policy, the City Council may elect to adopt one specific plan at a time, determine priorities for the adoption of each specific plan, initiate the preparation of a specific plan, or otherwise take action to ensure that the adoption of specific plans adhere to the growth management and public facilities goals and policies of this General Plan. SP Relationship: The preparation of the Preliminary Application and Final Specific Plan document have been undertaken in close coordination with City of Rohnert Park representatives. The adoption of the Plan will be subject to City Council action. Require that all specific plans prepared pursuant to this General Plan include the following components:' • A land use program as specified for each Specific Plan area in the General Plan, including the maximum and minimum development for each land use type. SP Relationship: In the present document, Section 4 — Land Use Element, C. Land Use Designation provides the required information. 1 Policy GM -9 also requires preparation of a Public Facilities Financing Plan. • A detailed traffic study, prepared by a City- approved traffic /transportation planner, and reasonable mitigation measures to mitigate traffic impacts resulting from the development; SP Relationship: See Southeast Specific Plan Traffic Impact Study for the City of Rohnert Park, January 2003, Whitlock & Weinberger Transportation, Inc., which is on file at the City of Rohnert Park Planning Division (File numbers 2003 -031, -054 and —005). In addition, the EIR provides details of mitigation measures. See: City of Rohnert Park Southeast Specific Plan Project EIR, section 3.10 Traffic and Circulation, Impacts and Mitigation Measures, p. 3.10 -25. • The proposed location and capacity of major infrastructure components, including wells, sewage, water, drainage, solid waste, disposal, energy, and other essential facilities proposed to be located within the area covered by the Specific Plan; . SP Relationship: A summary of the plans for these improvements is provided in Section 6 - Public Services Element, more detailed information is provided in documents submitted to the City of Rohnert Park by Civil Design Consultants (draft transmittal letter dated 27 February, 2006). • A site - specific biological assessment of wetlands, habitat areas, and creeksides by a City- approved biologist and a program for conservation /mitigation to the extent feasible; SP Relationship: See Jurisdictional Delineation — Willowglen Partners Property, June 2002, Gibson & Skordal, LLC., on file at the City of Rohnert Park Planning Division (File numbers 2003 -031, -054 and —005). • Survey for California tiger salamander, both in breeding habitat and adjacent upland aestivation habitat, with appropriate mitigation, including avoidance and minimization measures; SP Relationship: See the Site Assessment prepared by H. T. Harvey, on file at the City of Rohnert Park Planning Division (File numbers 2003 -031, -054 and —005). • Program for conservation of the natural resources along creeks and standards for the conservation, development, and utilization of natural resources where applicable; SP Relationship: There are no creeks or other significant natural resources within the boundaries of the site. • Park and open space in accordance with the General Plan designation, including access and connections to the bicycle system. SP Relationship: The Conceptual Land Use and Circulation Plan indicates the location of the neighborhood park to be developed as part of the project, bicycle circulation within the development would be via streets and sidewalks and is generally illustrated on Figure 4 -1 in the present document. • Hydrology and drainage for the area, with a goal to minimize runoff, and drainage practices to be incorporated as part of individual projects to meet the specific plan objectives; and SP Relationship: See Section 6, Public Services Element. • Plan to prevent stormwater pollution, including measures to be incorporated as part of development on individual sites. SP Relationship: See Section 6, Public Services Element. • Demonstration of adequate water supply;2 SP Relationship: The water supply for the SESPA will come from existing City sources. Additional information concerning the improvements planned in connection with the water supply for the project is contained in Section 6, Public Services Element. LU -1 OB Include within each specific plan, standards and criteria by which development will be phased and standards for the conservation, development, and utilization of natural resources. SP Relationship: The site does not contain significant natural resources, as documented in various site surveys presented in the Appendices. Phasing shall be as indicated in the Figure 5 -2: Conceptual Phasing Plan presented in Section 5. LU -1OC Permit hospitals, schools, police and fire stations, parks and other facilities that serve a vital public interest, subject to findings and necessary environmental review, to be located in a specific plan area, even if a specific plan for the area has not been adopted. SP Relationship: The Specific Plan, consistent with the General Plan, provides for the location of a neighborhood park within the SESPA. 2 Policy L1 0 -A notes: This demonstration of adequacy should be consistent with policies PF -11 through PF -14, relating to water supply. LU -1 OD As part of development of specific plans, through site planning and other techniques, ensure adequate transitions between incompatible uses, while promoting the General Plan intent of integrated development of compatible uses. SP Relationship: The General Plan provides guidance on the types of land uses that are to be accommodated within the SESPA and there are no incompatible uses included. The layout of the land uses within the SESPA contemplates the creation of a neighborhood that accommodates, in an integrated manner, various densities of residential development, a mixed -use component, as well a neighborhood park. SOUTHEAST SPECIFIC PLAN AREA LU -22 Require preparation of a Specific Plan prior to approval of any development in the southeast area.3 SP Relationship: The present Plan has been prepared expressly for and in response to this policy. LU -23 Permit neighborhood- oriented retail, offices, financial, business and personal services, and other similar neighborhood - compatible uses. SP Relationship: The Mixed -use component of the Specific Plan addresses this policy. LU -24 Permit a maximum FAR of 0.4 for retail -only development, and 1.0 for mixed -use development. Only land devoted to non - residential uses shall be counted towards establishing the non - residential FAR requirements. SP Relationship: As the Mixed -use component of the SESPA is developed, this policy directive will be implemented. LU- 25AIlow residential uses in the mixed -use area, as long as they do not front Bodway Parkway. SP Relationship: As per LU -24, when the Mixed -Use component of the project is implemented, this policy can be implemented. The current conceptual site layout provides for residential uses, which would front onto local streets within the development and not onto Bodway Parkway. LU- 26AIlow the Mixed -Use area to be developed with a mix of residential and commercial uses, or with either one of those uses without the other. SP Relationship: The Mixed -Use area within the SESPA contemplates the development of residential units, retail or a combination of both. 3 Policy LU -22 notes: The Specific Plan shall include a neighborhood park approximately five to eight acres in size, as specified in OS -12. Development shall be in accordance with the development program outlined in Table 2.4 -3 [of the General Plan]. C. Growth Management = GOALS: GROWTH MANAGEMENT GM -A Recognize the availability of housing as a vital issue of statewide importance. Cooperate with other local governments and the State in addressing regional housing needs, and balance regional and State considerations with the community's interest in preserving Rohnert Park's quiet, safe, small -town feeling and desire for carefully planned and managed growth. SP Relationship: The Specific Plan provides for the development of a range of housing types within a planned environment, the project will be phased according to market conditions and the allowable number of units, which the City determines are available for relationship according to the growth management strategy, which is in place. The range of housing types to be included in the project is described in Section 4, C. The Specific Plan recognizes the inclusionary requirement in the Rohnert Park Municipal Code which requires that at least fifteen percent of all new dwelling units in a residential development of five or more units shall be affordable, and shall be constructed and completed not later than the related market rate units. In a for -sale project the affordable units shall be affordable to low- and moderate - income households. GM -D Maintain a balance of land uses and a variety of housing types over time. SP Relationship: The balance of land uses in the SESPA, as established -in the General Plan, as well as the variety of housing types, will be maintained as the project is implemented. GM -E Promote contiguous urban development and maintain a compact form over successive stages of the city's development. SP Relationship: The SESPA lies at the southeast boundary of the City and its development within the overall General Plan framework will be consistent with this goal. GM -F Ensure all new development provides necessary public facilities to support the development. SP Relationship: The SESPA will accommodate a variety of public facilities including a neighborhood park and streets and sidewalks. POLICIES: GROWTH MANAGEMENT ADEQUATE PUBLIC FACILITIES GM -9 Require that each specific plan include a Public Facilities Financing Plan that explains how streets, water, wastewater, solid waste, and parks, all meeting City standards, will be provided to the project. The Plan must demonstrate, to the satisfaction of the City Manager, based upon criteria developed in the Growth Management Ordinance, that completion of all necessary public facilities concurrently with completion of the specific plan is economically, physically, and legally feasible. SP Relationship: See Section 6, Public Services Element for a summary of the approach to developing required public services, a more detailed description is provided in Attachments A, the Public Services Plan prepared by Civil Design Consultants. In addition, a Public Facilities Financing Plan has been prepared as part of the SESPA planning process and is part of the Specific Plan and is on file at the City of Rohnert Park Planning Division (File numbers 2003 -031, -054 and —005). GM- 10Require that economic, physical and legal feasibility (Policy GM -9) include the method of financing or otherwise paying for the facilities and the plan for receiving approval of all regulatory agencies. A Public Facilities Financing Plan that provides for the project's fair share of the financing for the necessary public facilities, but does not provide for the completion of the public facilities prior to completion of the development due to lack of contribution by other responsible parties, will be deemed complete but will not be approved as part of development project approval unless the exceptions included in GM -11 or GM -12 apply. SP Relationship: The aforementioned Public Facilities Financing Plan identifies the sources of financing for the public facilities requirements and is on file at the City of Rohnert Park Planning Division (File numbers 2003- 031, -054 and —005). GM- 13Require that new development maintain parkways, creeksides, and open spaces that are part of the development or are required to support it, and consider establishing multi - purpose assessment districts or other financing mechanism in order to assign the cost of infrastructure improvements equitably to benefiting sites. SP Relationship: The Public Facilities Financing Plan outlines the approach to assessment districts, which the project will undertake. This Plan is on file at the City of Rohnert Park Planning Division (File numbers 2003 -031, -054 and —005). There are no creeksides or open spaces, other than the neighborhood park, which are included in the SESPA. GM -14 Require new development to dedicate land to the City in the appropriate amount and location for parks and recreational space, in accordance with the General Plan Diagram, the Specific Plan for the area, and the City's park dedication requirements. SP Relationship: A neighborhood park is included in the Conceptual Land Use and Circulation Plan that will be dedicated to the City, the location of the park is shown in Figure 4 -1. LAND USE BALANCE GM -16 As part of preparation and approval of specific plans and any other implementing ordinances, regulations and development agreements, and allocation of development entitlements for areas of new development, balance non - residential development with residential development over the different phases and require that the contemplated balance of housing types is attained at buildout. SP Relationship: The Specific Plan envisions the development of a Mixed -Use component that constitutes the primary potential for non- residential development. Depending upon market conditions, the size and phasing of this non - residential and residential development will be undertaken in a manner which serves to achieve the planned balances of land uses and housing types. D. Community Design GOALS: URBAN FORM, VIEWS AND EDGES CD -A Create pedestrian- oriented activity centers that serve as community focal points. SP Relationship: The Specific Plan site layout is organized to promote opportunities for pedestrians to circulate within the community providing a park and Mixed -Use development area as key activity centers and focal points. CD-13 Establish strong connections between adjacent neighborhoods and between neighborhoods and activity centers, in order to encourage walking and biking. SP Relationship: The proposed street system, sidewalk, pedestrian crossings and trail connections on Valley House Drive, Petaluma Hill Road and Bodway Parkway provide connections to existing and planned neighborhoods surrounding the site. CD -C Establish an open space network that links residential neighborhoods, parks, and open space areas. SP Relationship: The grid network of streets, short block lengths and the associated sidewalks provide the desired linkages between residential areas and the park. CD -D Preserve and enhance views of the eastern ridgeline. SP Relationship: The east -west orientation of interior streets in the Specific Plan site layout provide the major opportunity for enhancing views of the eastern ridgeline from vantage points within the development. View Corridors have also been established that restrict the placement of structures and planting of trees. POLICIES: URBAN FORM, VIEWS AND EDGES VIEWS CD -4 Designate Petaluma Hill Road as a scenic corridor throughout its stretch along Rohnert Park. SP Relationship: The Specific Plan incorporates this policy for the segment of roadway that extends between Valley House Road and Canon Manor by creating a soft rural edge that consists of a landscaped berm. CD -5 Ensure that any landscape treatment along Petaluma Hill Road does not obstruct views of the eastern ridgelines from the street. SP Relationship: The Specific Plan incorporates this policy for the segment of roadway that extends between Valley House Road and Canon Manor by establishing view corridors and restricting the construction of homes and limiting the height of landscaping within these corridors. CD -6 As part of any development along Petaluma Hill Road, ensure planting, if any, does not obstruct views of the ridges from the city's eastern neighborhoods. In no case shall trees or shrubs that exceed 25 feet in height upon maturity be used.4 SP Relationship: The Specific Plan incorporates this policy for the segment of roadway that extends between Valley House Road and Canon Manor by limiting the height of landscaping in the buffer. 4 A maximum height of 25 feet will permit views of the ridgelines above 1.000 -foot elevation from a horizontal distance of about 1,000 feet from the open space edge. If trees are taller, views of the ridgelines from the eastern neighborhoods will be disrupted. Site specific characteristics may necessitate heights shorter than 25 feet or no planting at all to ensure that views are preserved. CD -7 Minimize disruption of existing views by new development. • Along Petaluma Hill Road, north of Valley House Drive, require any new development on the western side of the street to be set back at least 50 feet from the edge of the street right -of -way. SP Relationship: The Specific Plan site layout provides a 50 -foot buffer along Petaluma Hill Road. CD -8 Maintain streets as "view corridors" by: • Where appropriate, keeping the northern and eastern terminus "open" by not allowing buildings or tall trees to be placed at street ends; SP Relationship: The Conceptual Land Use and Circulation Plan observes this policy, as conceptually shown in Figure 4 -1. • Either leaving the eastern edge of the north -south streets at the city's eastern edge to remain unplanted, or ensuring that tall branching trees that permit views from vehicles. SP Relationship: The Specific Plan incorporates this policy for implementation as more detailed design is undertaken including selection of plant materials. EDGES CD -9 Ensure that development intensities provide adequate transition from urban to open space uses on the city's eastside, as indicated on the General Plan Diagram. SP Relationship: The Specific Plan follows the General Plan guidance on a general transition of urban densities from east to west, from rural estate to mixed -use. CD -10 As part of implementing plans and programs, permit clustering of Estate Residential development, with resultant pockets of open space along the city's eastern edge. SP Relationship: The SESPA Conceptual Land Use and Circulation Plan places the Rural Estate area along the city's eastern edge and provides a 50 -foot buffer between Petaluma Hill Road and adjacent rural estate homes as shown in Figure 4 -1, therefore responding to this policy. CD -11 Require all development along the city's eastern edge to plant trees and other vegetation along the city edge, in order to maintain the open space appearance along Petaluma Hill Road.5 SP Relationship: The Specific Plan addresses the edge treatment matter in Section 7.0 Design Guidelines (Attachment B). CD -12 As part of the Zoning Ordinance establish setback requirements for development adjacent to open space buffers along city edges. SP Relationship: The Specific Plan recognizes the existence of an Open Space area to the east of the property along Petaluma Hill Road and provides a 50 ft. setback from the boundary of the property (see Figure 4- 1 Conceptual Land Use and Circulation Plan). CD -13 Allow only Rural Estate Residential uses or open space and recreation uses along Petaluma Hill Road. SP Relationship: The SESPA site plan, consistent with the General Plan, provides for Rural Estate Residential uses and a 50 -foot landscape buffer in this location. CD- 14 Ensure that design treatment at the edge of urban uses results in "soft" edges by: Prohibiting the use of solid walls along these edges (i.e., fences must be visually permeable); • Using materials and design to promote soft edges (such as use of wooden or other rustic materials for fences, etc.); and SP Relationship: The Specific Plan addresses the edge treatment matter in Section 7.0 Design Guidelines, subsection B Community Design Principles, 2. Public Spaces and Streetscapes. FOCUS AREAS In addition to policies that apply across the City, the General Plan includes policies targeted at design issues specific to the Southeast Area. 5 See also Policy CD -5 pertaining to height of vegetation along Petaluma Hill Road. GOALS: NEIGHBORHOODS AND FOCUS AREAS CD -G Encourage development of diverse and distinctive neighborhoods that build on the patterns of the natural landscape and are responsive in their location and context. SP Relationship: The SESPA site plan is designed in such a manner as to create a cohesive, well - organized neighborhood, responsive to the surrounding land uses. CD -H Promote a mix of uses and a variety of housing types and sizes within residential neighborhoods.6 SP Relationship: The Specific Plan, following the direction of the General Plan, provides for a variety of housing types and sizes as well as a mixed - use area and a neighborhood park and is, therefore, responsive to this goal. CD -I Ensure that neighborhood streets provide an attractive physical environment for motorists, pedestrians, and cyclists. SP Relationship: The Specific Plan provides a street pattern and landscape design that is responsive to this goal. POLICIES: NEIGHBORHOODS AND FOCUS AREAS NEIGHBORHOOD STRUCTURE CD -16 Require neighborhood design — including components such as land use, development intensity, and street layouts —to be responsive to natural and institutional elements, including: • Urban edges: Ensure transition from urban intensities to open space; SP Relationship: The Specific Plan implements the General Plan guidance on location and types of land uses to achieve this policy. • Integration with the surroundings: Promote connections with adjacent neighborhoods by integrating street networks, and responding to existing landscape and visual treatments. 6 The General Plan Diagram establishes a mix of uses within areas of new development and promotes a mix of housing types by allowing a range of residential densities within the same areas. This goal and the subsequent policies build on the overall direction established in the diagram. SP Relationship: Sidewalk along the eastern side of Bodway Parkway will provide access to the north for pedestrians and bicycles. Pedestrian crossings at the Valley House Drive / Bodway Parkway intersection and a mid -block crossing between the proposed park and the property to the west provide access for future planned residential and commercial uses. CD -17 Allow townhomes and multifamily dwellings to be integrated with single - family residences. SP Relationship: The Specific Plan site layout is responsive to this policy by placing duplexes /duets in selected locations within single- family residential areas. A definition for each type of unit is provided in footnote 1 of Table 4 -1. STREET /BUILDING RELATIONSHIP CD -19As part of updating the City's zoning regulations or applicable specific plans, adopt standards to foster pedestrian orientation of new development in Mixed -Use and Neighborhood Commercial areas by: • Developing a coherent set of standards for buildings, such that building facades and entrances define the streetscape and promote street activity; • Maintaining volumetric building standards that require buildings to be located at the street by establishing maximum setback or "build -to lines ", with appropriate step -backs for upper stories; Ensuring that primary entrances of buildings face the street; • Requiring that parking be provided in the interior of the block, screened by the building or landscaping; • Requiring awnings and canopies for pedestrian comfort, where appropriate; and • Establishing building transparency from sidewalks. SP Relationship: These policies have been implemented in the Specific Plan via the Development Standards and Design Guidelines (Section 4. Development Standards and the Design Guidelines provided as Attachment B). CD -20 Encourage buildings to foster a sense of place by providing transitions between the street and building, front setback variation for residential development, and building articulation and massing, as part of development standards or any design guidelines that may be prepared. SP Relationship: This policy has been implemented in the Specific Plan via the Development Standards (Section 4 Development Standards) and the Design Guidelines (Attachment B). CD -21 Minimize the visual dominance of garages by maintaining appropriate development standards in the City's zoning and subdivision regulations and /or design guidelines. SP Relationship: The Specific Plan implements this policy through the provision of Design Guidelines in Section 7. CD -22 Provide streets at the edges of each phase of development in order to provide flexibility, and better continuity for later phases. SP Relationship: The phasing of the development of the project will depend upon market conditions and other factors. At such time as individual phases are proposed for implementation, this policy can be implemented. A Conceptual Phasing Plan is provided in Figure 5 -2. CD -23 Establish design guidelines for Estate Residential uses to ensure new buildings are consistent with surrounding areas. -The Specific Plan implements this policy through the Design Guidelines in Section 7, although the surrounding areas are almost totally undeveloped and therefore the new development will be a more significant determinate of street/building relationships than the existing and surrounding development. STREETS AND STREET NETWORK CD -24 Ensure that the Subdivision Regulations encourage a fine - grained and integrated pattern of streets that provide continuity between neighborhoods, have a human scale, and enhance the character of neighborhoods and activity centers. Ensure that the Subdivision Regulations: • Require the continuity of major streets between neighborhoods. SP Relationship: The Specific Plan provides for street connections along Bodway Parkway and Valley House Drive. • Limit use of cul de sacs to: No more than ten percent of the length of all streets in a subdivision map; and a 150 -foot maximum length, to prevent their use as a substitute to through streets. SP Relationship: This requirement will be addressed by the subdivision map. It should be noted that the Land Use and Circulation Plan includes only one cul -de -sac, which makes up less than 2% of the length of all streets within the SESPA (See Figure 4 -1). • Where cul de sacs are used, integrate pedestrian and bicycle connections through the end to the adjacent area. SP Relationship: This requirement will be addressed when a detailed site layout for the SESPA is prepared and submitted to the city. • Promote closer spacing between the intersections of local streets, as defined in Chapter 4: Transportation, with a maximum spacing of 1 /8th mile (660 feet) that will strengthen pedestrian connections. SP Relationship: The Specific Plan is responsive to this policy. With the exception of blocks that are constrained by the configuration of the park and adjacent existing residential lots to the north, all blocks within the Conceptual Land Use and Circulation Plan are less than 660 feet in length (See Figure 4 -1). CD -25 Use traffic calming measures to reduce traffic speeds in residential areas rather than limiting street connections. SP Relationship: Intersections have been designed to provide pedestrian bulbouts. Pedestrian bulbouts extend the corner sidewalk at the intersection by eliminating on street parking and narrowing the street to the travel lane curb -to -curb width at the intersection. Reducing the width of the street improves pedestrian safety by alerting the driver that an intersection is about to occur, shortening the distance required to cross the street, and improving the visibility of the pedestrian. Corner radii are also reduced, forcing drivers to slow down during turning movements. CD -26 Design local streets to not only accommodate traffic, but also to serve as comfortable pedestrian environments. These should include, but not be limited to: • Street tree planting adjacent to curb and between the street and sidewalk to provide a buffer between the pedestrian and the automobile, where appropriate; • Minimum curb cuts along streets; and • Sidewalks on both sides of streets, where feasible. SP Relationship: The Specific Plan is responsive to this policy by providing sidewalks on both sides of all streets as detailed in Section 5 Circulation Element, subsection C and the Public Services Plan (Attachment A). Designated multi -use trails and key pedestrian corridors, where driveway cuts are minimized through neighborhood designs, further implement this policy. CD -27 Allow soundwalls only for development along US 101 and NP Railroad, as shown in figure 3.2 -6. A review of the calculated noise levels and traffic counts along RP arterials, coupled with implementation of other tools such as larger setbacks, suggests that sound walls will not be necessary along proposed arterials. Restrictions on use of sound walls will allow neighborhoods to be less inward focused and allow them to be perceived as more open and welcoming to passers by. SP Relationship: The Specific Plan does not contemplate the use of extensive sound walls and is therefore generally consistent with the intent of CD -27. Street patterns have been intentionally designed to allow units to side onto Valley House Drive and Bodway parkway to avoid the need for long expanses of soundwall. Instead, side and rear yards abutting these streets will be attenuated by side yard fencing or short courtyard walls rated to mitigate noise to an acceptable level. Although these short distances will be attenuating noise, they will not appear as a solid . soundwall that closes off the community. Along Petaluma Hill Road, the Specific Plan proposes a combination of landscape berm and wall to provide sound attenuation to the adjacent rural estate. The landscape berm will allow the wall to be no taller than 4 feet in height. The berm will also create a softened edge along this corridor. This concept is described in the Design Guidelines, Page 3. PARKING CD -29To establish flexibility in parking standards, review residential parking requirements in the Zoning Ordinance, and consider implementing the following provisions and exceptions, where appropriate: Reduced off - street parking requirements for High Density Residential uses; • Reduced off - street parking requirements for residential sites adjacent to the linear park, where on- street parking is more available; Reduced parking requirements for development with a mix of uses, to account for differences in peak hour parking demand between the uses. • Reduced parking requirements in areas designated as Mixed Use, where mix of uses and compact development favors pedestrian and bicycle access. • Allowing on- street parking to count toward parking requirements for development in mixed use areas. SP Relationship: The Specific Plan provides information concerning parking requirements in the Development Standards found in Table 4 -4. As more detailed planning and design is undertaken of the residential and Mixed Use areas, consideration can be given to the provisions and exceptions as noted and as necessary and appropriate. CD -30 Encourage development of parking assessment districts for the mixed -use areas. Upon establishment and participation in such a district, do not require parking on individual sites. SP Relationship: As more detailed planning is undertaken for the Mixed - Use area and the ultimate development program is defined, consideration can be given to the need for and appropriateness of implementing this policy. SOUTHEAST SPECIFIC PLAN AREA CD -49 Locate the proposed Mixed -Use Commercial area along Bodway Parkway to increase accessibility. Require buildings to front on Bodway with parking located behind buildings. SP Relationship: The Specific Plan site layout is responsive to this policy as indicated in the site layout and described in Attachment B, Design Guidelines, subsection D Mixed Use Design Guidelines. CD -50 Provide Medium Density Residential uses adjacent to mixed - use /commercial areas. Require the commercial center to provide landscaping to screen parking and provide a buffer between the residential and commercial uses. SP Relationship: The Specific Plan site layout is responsive to this policy and the Design Guidelines in Section 7, subsection D Mixed Use Design Guidelines provide additional guidance on this subject. This policy allows flexibility in the arrangement of parking within mixed -use areas. On- street or off - street parking can be located off -site, allowing more compact development. CD -51 Ensure that the proposed neighborhood park is located adjacent to the Medium Density Residential area. SP Relationship: The Specific Plan is responsive to this policy, as shown on the Conceptual Land Use and Circulation Plan Figure 4 -1. CD- 52AIlow only Estate Residential uses along Petaluma Hill Road in order to provide transition between developed and undeveloped areas. SP Relationship: The Specific Plan is responsive to this policy as shown on the Conceptual Land Use and Circulation Plan, Figure 4 -1. POLICIES: PUBLIC ART CD -58 Include art and cultural components in areas of new development and redevelopment. SP Relationship: The Specific Plan indicates two areas where art and cultural components can be incorporated in the development. the park and the mixed use area. Depending upon the final landscaping and site designs for these areas, cultural and art features can be incorporated into the projects. E. Transportation GOALS: STREET SYSTEM TR -A Promote safe and efficient vehicular circulation throughout Rohnert Park. SP Relationship: The Specific Plan provides an appropriate hierarchy of roads that will effectively separate through from local traffic providing residents with convenient, safe access to their homes while facilitating vehicular movements within the SESPA. TR -B Maintain high levels of mobility along all major street segments and at major intersections. SP Relationship: The Specific Plan incorporates the results of a traffic study that provides guidance on improvements needed to implement this goal.8 8 See: Southeast Specific Plan Traffic Impact Study for the City of Rohnert Park, Whitlock & Weinberger Transportation Inc. TR -C Build new roads and improve existing roadways, where necessary, in conjunction with new development. SP Relationship: The Specific Plan is responsive to this goal, upgrading the existing roadways located on the east, south and west while developing a new network of roads for internal circulation within the SESPA. TR -E Discourage high -speed traffic and trucks from using local streets. SP Relationship: The Specific Plan site layout discourages high -speed and truck traffic by reducing the possibilities for through movement to Canon Manor. TR -F Encourage alternative modes of travel — including transit, bicycles, and walking —by coordinating land use planning and development with transportation and by promoting compact, mixed -use development in targeted areas. SP Relationship: The Specific Plan is responsive to this goal by providing a network of sidewalks and roads that can be used by bicyclists and pedestrians. POLICIES: STREET SYSTEM STREET CLASSIFICATIONS AND STANDARDS TR -I Establish LOS C as the minimum standard for all arterial and collector roadway segments ( "segments ") and intersections, except for (1) those specified segments and intersections for which allowable LOS standards are otherwise established below; and (2) segments and intersections that are operating at LOS D or lower at the time an application for a development project or a specified plan is submitted if no feasible improvements exist to improve the LOS. The then - existing LOS may be permitted to be the standard for those segments and intersections in category (2), provided that the LOS not be permitted to deteriorate further due to the proposed development project or specific plan. SP Relationship: The General Plan identified the segment of Petaluma Hill Rd. from Valley House Rd. to East Railroad Ave. as having a Level of Service of "E /A" The analysis of this condition is included in the E/R in Section 3.10 Traffic and Circulation. TR -2 Require mitigation measures, as needed, for new development that ,- increases traffic such that LOS levels fall below the established minimum standard. Ensure that mitigation measures are coordinated with roadway improvements programmed for funding through transportation- related impact fees.9 SP Relationship: As part of the Specific Plan process, a Traffic Impact Study has been prepared and is on file with the City of Rohnert Park Planning Division (File numbers 2003 -031, -054 and —005). This study provides the required analysis and recommendations as to mitigation measures that will be funded as part of the development project. Additional information is provided in Section 3.10 Traffic and Circulation of the EIR. TR -4 Establish roadway classifications, as shown in Table 4.1 -3 of the General Plan. Require right -of -way dedications and design roadway improvements based on these classifications and Figure 4.1 -1 in the General Plan. SP Relationship: The Specific Plan provides roadway classification information in Section 5, Circulation Element in subsection C. Roadway Classification Standards. Additional details of the roadway characteristics are described in the Public Services Plan (See Attachment A). TR -5 Require provision of local streets in accordance with the City's Subdivision Ordinance and the policies and standards in Chapter 3: Community Design. SP Relationship: The Specific Plan is responsive to this policy by providing a local street network to serve the new development. ROADWAY IMPOROVEMENTS TR -10 (related to Bodway Parkway) "Where street widening is proposed and the City owns an existing right -of -way that exceeds the minimum width required according to the roadways classifications shown in Fig 4.1 -3, the additional width shall be used for a greenway along one side of the street that has bikeways, pedestrian paths, and landscaping." SP Relationship: No modification of the Bodway Parkway is proposed. 9 Chapter 2: Land Use and Growth Management of the General Plan requires project proponents to pay for transportation improvements made necessary by development. Policy TR -1 establishes minimum LOS standards. A traffic analysis will be required for each specific plan area and mitigation measures will be required, as appropriate, both within and outside the City limits. INTER - JURISDICTIONAL COORDINATION TR- 19Work with Sonoma County to coordinate improvements to mador roads in the unincorporated parts of the Rohnert Park Planning Area. SP Relationship: The Specific Plan recognizes the needs for coordination with Sonoma County in the development of Valley House Drive in as much as this roadway corridor lies in both the City of Rohnert Park and the County's jurisdiction. TR -21 B. Work with the City of Cotati and Sonoma State University to determine feasible measures to mitigate impacts of increased traffic on East Cotati Avenue (within the City of Cotati, beginning with the La Plaza intersection) associated with the proposed growth assumed in the 2000 General Plan. These measures shall be based on detailed (intersection - level) traffic studies that will be prepared with each specific plan. The Southeast Specific Plan shall include a detailed analysis of intersections within and outside of the city that are projected to be impacted by the specific plan project area; an analysis of the traffic impacts of the specific plan project area on East Cotati Avenue; a cumulative impact analysis; and feasible mitigation measures for lessening the potential traffic impacts. Contribute the City's fair share to the feasible mitigation measures identified in the Southeast Specific Plan; provided that (1) the City's fair share is roughly proportional to the traffic impacts of development beyond the 1999 incorporated limits of the City of Rohnert Park; and (2) other jurisdictions that approve development that impacts traffic congestion at the impacted intersections on East Cotati Avenue contribute their fair share. In the event that the City of Cotati and /or SSU approve development that impacts East Cotati Avenue traffic congestion but do not contribute their fair share to fund the feasible mitigation measures, the City and City of Cotati will evaluate alternative feasible mitigation measures that can be implemented. The City's financial commitment is also contingent upon legal authority to collect payments through specific plans, development agreements, assessment districts, and /or ordinances to raise funds for needed improvements on East Cotati Avenue. SP Relationship: The SESPA planning process has included preparation of a Traffic Impact Study to analyze the effects of the development on traffic on East Cotati Avenue. See: Southeast Specific Plan Traffic Impact Study for the City of Rohnert Park, Whitlock & Weinberger Transportation, Inc, which is on file with the City of Rohnert Park Planning Division (File numbers 2003 -031, -054 and —005) In addition, this matter has been reviewed in the course of preparing the EIR. 10 Major roads include Petaluma Hill Road, Railroad Avenue, Stony Point Road, Wilfred Avenue, Millbrae Avenue, and the Old Redwood Highway. F. Open Space GOALS: OPEN SPACE OS -D Maintain and enhance the Petaluma Hill Road scenic corridor. SP Relationship: The Specific Plan, following the guidance of the General Plan, provides for the development of the West Side of Petaluma Hill Road for Rural Estate residential uses and a 50 -foot wide buffer. In addition, the Design Guidelines in Section 7, subsection B 2. Public Spaces and Streetscapes provides additional information concerning the planned design treatment along Petaluma Hill Road. GOALS: PARKS OS -F Provide an integrated system of parks and trails throughout the City to meet the community's recreational needs. SP Relationship: The Specific Plan is consistent with this goal by providing a neighborhood park, multi -use trials along Valley House Road and Petaluma Hill Road, sidewalks on both sides of all streets and connections to adjacent existing and proposed adjacent neighborhoods. OS -G Develop additional parkland in the city to meet the standards of required park acreage for new residents. SP Relationship: The Specific Plan is consistent with this goal by ,providing a neighborhood park for new residents of the SESPA. OS -H Ensure adequate funding for parks and recreation facilities acquisition, development, and maintenance. SP Relationship: As part of the Specific Plan preparation, a Public Facilities Financing Plan was prepared by Harris & Associates and is on file with the City of Rohnert Park Planning Division (File numbers 2003- 031, -054 and —005) POLICIES: OPEN SPACE OS -6 Require property developers adjacent to sites where agricultural use is permitted or being conducted to inform subsequent buyers of potential continued agricultural production and the lawful use of agricultural chemicals, including pesticides and fertilizers. SP Relationship: In accordance with California law, prospective buyers of properties will be provided with a list of disclosures including information regarding agricultural activities in surrounding areas wherein certain chemicals may be used. POLICIES: PARKS OS- 12Acquire and develop new parks in the approximate locations and sizes shown on Figure 5.2 -1 and Table 5.2 -2 in the General Plan. SP Relationship: The Specific Plan is consistent with the General Plan in providing a new neighborhood park for the SESPA. 11 RECREATION FACILITIES OS -16 Expand the city's network of bike and pedestrian paths in areas of new development. SP Relationship: The Specific Plan is consistent with this policy as the implementation of the actual development will entail the creation of new streets and sidewalks. OS -17 Ensure that parks and recreation facilities are safe secure areas. The City should request Department of Public Safety review and comment on park and recreation facility projects. The design and construction of these facilities should allow for safety, security, and reliable patrol and response. SP Relationship: Representatives of the City have participated in the review of design concepts for the location and features of the park. " Figure 5.2 -1 indicates the location of the park incorrectly as spanning Canon Manor and the SESPA. G. Wastewater GOALS: WATER SUPPLY AND CONSERVATION PF -D Ensure that adequate wastewater facilities and services are available to meet the needs of existing and new development. SP Relationship: A summary description of the planned improvements is provided in Section 6.0 Public Services Element and the Public Services Plan (Attachment A) GOALS: PARKS PF -G Continue to encourage water conservation through use of reclaimed water and reduction of water consumption and discharge, for both existing and new development. SP Relationship: Reclaimed water is not available to the SE Specific Plan Area. PF -H Ensure that groundwater withdrawal does not exceed safe yield. SP Relationship: No groundwater withdrawal is proposed POLICIES: WASTEWATER PF -9 Require developers to install or pay for new sewer lines and other sewer improvements needed to accommodate new development. 12 SP Relationship: The Public Facilities Financing Plan provides information on the financing of sewer lines for the SESPA. 12 Sewer mains on the eastside will need to be expanded in order to accommodate new development. Developers shall be required not only to install on -site sewers, but also to contribute to the cost of improvements to sewer mains. Chapter 2: Land Use and Growth Management of the General Plan includes specific policies for assessing costs and prioritizing and implementing infrastructure improvements. The Public Services Plan describes the approach to developing and financing these improvements. POLICIES: WATER SUPPLY AND CONSERVATION WATER SUPPLY PF- 14Require developers to dedicate new well sites in locations identified by the City and to pay for the cost of new wells, water lines, and other water supply infrastructure needed to accommodate new development. 13 SP Relationship: At the present time, it is assumed that the water supply for the SESPA will be provided from existing sources. The conceptual approach to providing water to the development is described in the Public Services Plan (Attachment A). CONSERVATION PF- 15Continue to require water - conserving devices for all new development. 14 SP Relationship: The Public Services Plan describes the types of measures that will be implemented to conserve water such as low flow devices within the homes and drought resistant landscaping. PF- 16Require non - residential uses to implement water conservation practices as a condition of development. At the time detailed plans for the non - residential uses are prepared, the policy can be implemented. PF -21 Continue to use reclaimed wastewater to irrigate parks, recreational facilities, and landscaping. 15 SP Relationship: Once Sonoma Mountain Village is constructed, recycled water will be available to the site and the park will be irrigated via this connection. 13 14 Devices include low -flush toilets and low -flow showers and faucets. 15 Landscaping includes trees and vegetation planted along streets, as well as private business facilities H. Environmental Conservation POLICIES: HISTORIC AND ARCHAEOLOGICAL RESOURCES EC -1 Undertake an inventory of historic resources to determine sites or buildings of federal, State, or local historic significance. SP Relationship: As part of the Specific Plan preparation process, a study was undertaken to identify the potential for historic resources. See A Cultural Resources Evaluation of the SESPA in Rohnert Park, Sonoma County, California, Archeological Resource Service, January 2002, which is on file with the City of Rohnert Park Planning Division (File numbers 2003 -031, -054 and —005) EC -2 Insure the protection of known archaeological resources in the city by requiring a records review for any development proposed in areas that are considered archaeologically sensitive for Native American and /or historic remains. Require construction activities and development adjacent to sites of historic or archaeological resources to avoid degradation by: • Studying the potential effects of development and construction in the resource; • Requiring pre- construction surveys and monitoring during any ground disturbance for all development in areas of historical and archaeological sensitivity; and • Implementing appropriate measures to avoid the identified impacts. SP Relationship: As part of the Specific Plan preparation process, a study was undertaken to identify the potential for historic resources. See: A Cultural Resources Evaluation of the SESPA in Rohnert Park, Sonoma County, California, Archeological Resource Service, January 2002, which is on file with the City of Rohnert Park Planning Division (File numbers 2003 -031, -054 and —005). As development proceeds, the policy can be implemented. POLICIES: HABITAT AND BIOLOGICAL RESOURCES WETLAND CONSERVATION EC -5 Require development in areas with high and moderate wetlands potential and habitat areas delineated in Figure 6.2 -1 of the General Plan, as well as other areas where wetland or habitat for special- status species is present, to complete assessments of biological resources. SP Relationship: As part of the Specific Plan preparation process, a jurisdictional delineation study was performed which was submitted to the Department of the Army, Corps of Engineers resulting in a determination that Department of the Army authorization will not be required (i.e. wetlands not present on the site). This study is on file with the City of Rohnert Park Planning Division (File numbers 2003 -031, -054 and —005). NATIVE SPECIES EC -7 Encourage planting of native vegetation in new development sites, parks, public areas and open space. Landscaping to be included in the Specific Plan area will be selected from a variety of plant types, which will be responsive to climate, soil conditions, water consumption and maintenance requirements. Consideration will be given to native vegetation, which is responsive to these criteria. VEGETATION EC -10 As part of development approval in any new growth area, require participation in a landscape assessment district, with responsibility for maintaining open spaces, landscaped medians, and other similar features. 16 As the development moves forward, consideration will be given to creating an appropriate district mechanism (either a Community Services District or a Landscape Assessment District) to assume responsibility for this activity. See: Public Facilities Financing Plan, on file with the City of Rohnert Park Planning Division (File numbers 2003 -031, -054 and —005). 16 Planting of native vegetation with minimal water demand will be included in the district GOALS: AIR QUALITY EC -L Encourage land use and transportation strategies that promote use of alternatives to the automobile for transportation, including bicycling, bus transit, and carpooling. SP Relationship: The Specific Plan is responsive to this goal with respect to creating opportunities for pedestrian circulation and bicycling by providing a network of sidewalks and streets which can accommodate and encourage walking and bicycling. I. Seismic and Geologic Hazards POLICIES: SEISMIC AND GEOLOGIC HAZARDS HS- 1 Require new construction to utilize site preparation, grading, and foundation designs in accordance with site - specific soil conditions. Require submittal of a preliminary soils report, prepared by a registered civil engineer. SP Relationship: As part of the Specific Plan preparation effort, a geotechnical engineering investigation of the site was performed. See: Updated Geotechnica/ Engineering Investigation — Proposed Residential Development — SESPA, Michelucci & Associates, Inc. December 2002, on file with the City of Rohnert Park Planning Division (File numbers 2003- 031, -054 and —005) POLICIES: DRAINAGE, EROSION, STORMWATER, AND FLOODING HS -5 As part of the building permit process, require all development projects to comply with hydrology and drainage policies incorporated in the applicable Specific Plans. Require the project proponent to design and construct a storm drain system in accordance with the SCWA Flood Control Design Criteria (latest revision), specific LA to the project. Encourage the use of environmentally sensitive drainage improvements including flow reduction and flood bypass systems in order to ensure protection of surface water quality and stream integrity." SP Relationship: As part of the Specific Plan preparation, engineering studies have been conducted to determine potential means of retaining storm water on -site. Use of a portion of the park site for this purpose is currently under consideration. " Policy LU -1 04 stipulates that all specific plans shall address hydrology and drainage for their respective areas, as well as practices to be incorporated as part of individual development projects. The storm drain system may include: Street and underground storm drain improvements; and new underground storm drainage facilities. POLICIES: SOLID WASTE MANAGEMENT AND RECYCLING HS -15 Require new multifamily residential and all non - residential development to incorporate attractive and convenient interior and exterior storage areas for recyclables into new buildings, to make recycling activities more convenient for those who use the buildings. SP Relationship: The Specific Plan is responsive to this policy and provides guidance on this subject in Section 6 Design Guidelines. POLICIES: EMERGENCY MANAGEMENT HS -24 Require adequate access for emergency vehicles, including adequate street width and vertical clearance, on new streets. SP Relationship: The Specific Plan is responsive to this policy. See Section 5. Circulation Element, C. Roadway Classifications and Standards. GOALS: NOISE NS-13 Minimize the exposure of noise - sensitive uses to excessive noise levels; including residences, schools, churches, hospitals, and other public uses. SP Relationship: No schools, churches or hospitals will be located within the Specific Plan area. A small public park will be located in the northwestern part of the Plan area, which is surrounded on more than _75% of its perimeter by residences; the remaining 25% is adjacent to Bodway Parkway, a north -south major collector road. An analysis of potential noise generated by vehicular traffic on the major streets bounding the Specific Plan area has been conducted to ascertain needs for noise mitigation measures where noise could exceed allowable thresholds. As appropriate and necessary, those residential units where noise may exceed allowable thresholds will be designed and built with mitigation measures incorporated in walls, windows and other openings. POLICIES: NOISE STANDARDS NS -1 During project review and approval use Figure 8.3 -1 to determine acceptable uses and analysis and insulation requirements in noise impacted areas. SP Relationship: As part of the Specific Plan preparation, an acoustical analysis was undertaken to address potential noise issues related to the location of residences along the east side of Petaluma Hill Road. The results of this analysis are provided in the Appendix in the study prepared by lllingworth & Rodkin, Inc. NS -2 For all residential uses establish 45dBLdn as the standard for interior noise levels and 60dB Ldn as the standard for exterior noise levels. Require appropriate siting of residential uses and /or mitigation measures to meet the standards. SP Relationship: As part of the Specific Plan preparation, an acoustical analysis was undertaken to address potential noise issues related to the location of residences along the east side of Petaluma Hill Road. The results of this analysis are provided in the Appendix in the study prepared by lllingworth & Rodkin, Inc. MITIGATION OF NOISE IMPACT NS -6 Require buffers or site planning techniques for all new development within the 65 dB Ldn noise contours. However, avoid visible sound walls except along US 101 and along NP Railroad right -of -way. SP Relationship: As part of the Specific Plan preparation, an acoustical analysis was undertaken to address potential noise issues related to the location of residences along the east side of Petaluma Hill Road. The results of this analysis are provided in the Appendix in the study prepared by lllingworth & Rodkin, Inc. NS -7 Require new development within existing or projected 65 dB Ldn noise contours to undergo a technical acoustical analysis, which shall serve as the basis for designing mitigation measures. Require the technical analysis to be conducted by a professional acoustical engineer. SP Relationship: As part of the Specific Plan preparation, an acoustical analysis was undertaken to address potential noise issues related to the location of residences along the east side of Petaluma Hill Road. The results of this analysis are provided in the study prepared by lllingworth & Rodkin, Inc., which is on file with the City of Rohnert Park Planning Division (File numbers 2003 -031, -054 and —005) J. Housing POLICIES: HOUSING SUPPLY HO- 3(3.2) Continue to establish assessment districts and utilize subdivision agreements to finance adequate infrastructure. SP Relationship: As part of the planning process for this Specific Plan, a Public Facilities Financing Plan was prepared by Harris and Associates (dated May 25, 2004) which provides information on the financing approach to achieve adequate infrastructure. GOAL: BALANCE OF HOUSING TYPES HO -B Provide for a range of housing types within the community to accommodate a variety of incomes and lifestyles, and enable residents to remain in Rohnert Park throughout their lives if they so choose. SP Relationship: The Specific Plan, following the guidance of the General Plan, is responsive to this goal by providing for the development of a range of housing types. Detailed information concerning the sizes of units is provided in the Development Standards found in Table 4 -4 and additional information concerning the design of the units is provided in Section 7.0 Design Guidelines. POLICIES: BALANCE OF HOUSING TYPES HO -4 Promote a diversity of housing types, including single - family detached and attached residences, mobile homes, multi - family rental and ownership units, second units, and units combined with non - residential uses. SP Relationship: The Specific Plan, following the guidance and direction of the General Plan, is responsive to this policy by accommodating a diversity of housing types. Detailed information concerning the sizes of units is provided in the Development Standards found in Table 4 -4 and additional information concerning the design of the units is provided in Section 7.0 Design Guidelines. GOAL: PROVISION OF AFFORDABLE HOUSING y HO -C Address to the maximum extent feasible the housing needs of all economic segments of the present and future community, giving highest priority to lower income households. SP Relationship: The Specific Plan, incorporating direction from the City's Municipal Code section 17.70.040, based on the planned development of for -sale residences, provides for the development of 15% of the housing units as affordable to low and moderate income households. Appropriate regulation of resale and occupancy of units designated as affordable shall be monitored by the City of Rohnert Park. GOAL: PRESERVATION OF AFFORDABLITY HO -D Preserve the City's existing affordable housing stock, and ensure the long- term affordability of new non - market rate units. SP Relationship: The Specific Plan, incorporating direction from the City's Municipal Code section 17.70.040, based on the planned development of for -sale residences, provides for the development of 15% of the housing units as affordable to low and moderate income households. GOAL: ENERGY CONSERVATION HO -H Encourage energy conservation in housing. .SP Relationship: The residences to be developed within the Specific Plan will be subject to statutory standards and review procedures pertaining to energy and energy conservation. Last year the California Energy Commission (CEC) completed the rulemaking process for the 2008 Energy Efficiency Standards for Residential and Nonresidential Buildings (Title 24, Part 6, of the California Code of Regulations). The Energy Commission adopted the 2008 Standards on April 23, 2008, and the Building Standards Commission approved them for publication on September 11, 2008. The CEC has posted the final proposed version of the Residential Compliance Manual, which was certified by the CEC on December 17, 2008. It has also posted a final draft of the Nonresidential Compliance Manual, which was to be considered for adoption at the CEC Business Meeting on January 14, 2009. A first analysis of the 2008 code revealed an average energy performance at least 21 % more efficient than ASHRAE 90.1 -2004. Even better results are likely after more definitive testing. The new standards will be effective August 1, 2009. Furthermore, the applicant has submitted a zero carbon plan for the project that identifies a number of energy conservation techniques. This plan is currently under review by the City. Once approved, these techniques will be implemented as part of the project. HO -24 Promote the use of energy conservation features in the design of residential development. SP Relationship: In addition to application of statutory standards and review procedures for residential development, consideration will be given to features which promote energy conservation, consistent with marketplace requirements and consumer preferences. HO -24 (24.1) Continue to evaluate residential projects for consistency with Section 66473.1 of the Subdivision Map Act during the development review process. SP Relationship: The City of Rohnert Park has responsibility for review of projects during the development review process including an evaluation of consistency with applicable Municipal Code provisions. HO -24 (24.2) Continue to require the planting of trees as part of residential projects to provide cooling during the summer months. SP Relationship: As part of the overall subdivision implementation common areas and the park will be planted with trees according to a landscaping plan. In addition, front yards will be planted with trees to provide shading along public streets and sidewalks. Periodic maintenance will be required to ensure that the initial plan intent is carried out in future years as trees mature and, on occasion, require replacement.