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HomeMy WebLinkAboutStaff Report 413-0821 City of Palo Alto Cit y Manager’s Report TO:HONORABLE CITY COUNCIL FROM:CITY MANAGER DEPARTMENT: PLANNING AND COMMUNITY ENVIRONMENT DATE: REPORT TYPE: OCTOBER 20, 2008 PUBLIC HEARING CMR: 413:08 SUBJECT:Approval of a Mitigated Negative Declaration, Site And Design Review, Conditional Use Permit and Record Of Land Use Action for a new, spa and fitness facility, below grade parking, tennis court and other sit~e improvements located within the Open Space (Os) Zone District At 3000 Alexis Drive. ~ RECOMMENDATION Staff, the Planning and Transportation Commission, recommend that the City Council approve the following: and the Architectural Review Board 1.Mitigated Negative Declaration, prepared for the property located at 3000 Alexis Drive, in accordance with the California Environmental Quality Act(Attachment C). A Record of Land Use Action approving Site and Design Review and Conditional Use Permit applications to allow the construction of a new spa and fitness facility, and other site improvements subject to the findings and conditions of approval contained in the draft Record of Land Use Action (Attachment A). BACKGROUND On September 15, 2008 the City Council voted 9-0 to approve the Mitigated Negative Declaration (MND) and the Record of Land Use Action for the project proposal at 3000 Alexis Drive. The MND and the Initial Study attached to the staff report, however, were not the revised and updated versions of those documents that had been revised and re-circulated for Public Colnment on August 19, 2008. The correct MND and Initial Study were provided to Planning and Transportation Commission for its review in August. The correct mitigation measures were included in the Record of Land Use Action considered by the Council on September 15, 2008. The September 15, 2008 staff report is included as Attachment B to this report, without attachments. DISCUSSION Due to the fact that the prior-versions of the environmental documents were included in the September 15th report, the item must return to the Council as a public heating for review and approval with the updated and ]:evised version of the MND that was circulated for public review from August 19, 2008 through September 9, 2008. This heating is a follow-up to the September 15, 2008 heating. All comments and deliberations from the prior hearing will remain part of the hearing record. There are no changes to the project proposal or the conditions and mitigations specified in the Record of Land Use Action, except the change specified bY the Council at the September 15th City Council Hearing. This change amended Mitigation Measure #4 (pages 35 and 36) to include a limit on the increase in the number of Social Members until verification of conformance with traffic level targets. A Mitigation Monitoring and Reporting Program has also been included to accompany the MND and will be used when implementing the mitigation measures (Attachment D). The program details what action is to be taken, when the action is to take place, and which department/s will ensure that each measure is implemented. PREPARED BY:~~~~~" REICH Senior Planner DEPARTMENT HEAD: CURTIS WILLIAMS Interim Director of Planning and Community Environment CITY MANAGER APPROVAL: Cits~ianager ATTACHMENTS Attachment A: Attachment B: Attachment C: Attachment D: Draft Record of Land Use Action City Managers Report, September 15, 2008 (w/o attachments) Mitigated Negative Declaration and Initial Study Mitigation Monitoring Program COURTESY COPIES Chris Wasney, Applicant Palo Alto Hills Golf and Country Club, Dirk Zander, Owner Sal Giovanotto, Neighboring Property Owner Stephen E. Velyvis, Miller Starr Regalia ATTACHMENT A Action NO. 2008-07 RECORD OF THE COUNCIL OF THE CITY OF PALO ALTO LAND USE ACTION FOR 3000 Alexis Drive{ CONDITIONAL USE PERMIT AND SITE AND DESIGN REVIEW APPLICATION [FILE NO.06PLN-00361] (CODY ANDERSON WASNEY, APPLICANT) On October 20, 2008, the City Council approved Conditional Use Permit and Site and Design Review application for a new two story, spa and fitness centerfacility with below grade parking, a new tennis court, improvements to the existing club facility including a new porte cochere, a new roof screen, a wading pool, additional floor area for accessory uses including offices, members bar, banquet and storage areas, and other site improvements included on an overall 125 acre site in the OS Open Space zone district, making the following findings, determination and declarations: SECTION i. Backqround. The City Council of the City of Palo Alto ("City Council") finds, determines, and declares as follows: A. On December 14, 2006, Cody Anderson Wasney, on behalf of Palo Alto Hills Golf and Country Club, applied for a Site and Design Review application for construction of a new two story, spa and fitness center facility with below grade parking, a new tennis court, improvements to the existing club facility including a new porte cochere, a new roof screen, a wading pool, additional floor area for accessory uses including offices, ~embers bar, banquet and storage areas, and other site improvements (~The ProjectH). B. Following staff review, the Planning and Transportation Commission (Commission) reviewed The Site and Design Project and recommended approval on April 2, 2008. The Commission reviewed the Conditional Use Permit and recommended approval on August 27, 2008. The Commission’s recommendations are contained in the CMR and the attachments to it. C. Following Commission review of the Site and Design application, the Architectural Review Board (ARB) reviewed and~ continued the project on May 15, 2008. The ARB reviewed the Project and recommended approval on June 5, 2008. The ARB’s recommendations are contained in the CMR and the attachments to it. D. On September 15, 2008, the City Council approved a Mitigated Negative Declaration and Conditional Use Permit and Site and Design Review applications for a new two story, spa and fitness center facility with below grade parking, a new tennis court, improvements to the existing club facility "including a new porte cochere, a new roof screen, a wading pool, additional floor area for accessory uses including offices, members bar, banquet and Page i storage areas, and other site improvements included on an overall 125 acre site in the OS Open Space zone district, making certain findings, determinations and declarations. The Mitigated Negative Declaration-did not reflect the most recent revisions and a second hearing was set for October 20, 2008. SECTION 2.Environmental Review. The City as the lead agency for The Project has determined that the project is subject to environmental review under provisions of the California Environmental Quality Act (CEQA) under Guideline section 15070, Decision to Prepare a Negative or Mitig.ated Negative Declaration. An Environmental Impact Assessment (EIA) was prepared for the Project and it has been determined that no potentially adverse impacts would result from the development that cannot be mitigated, therefore, the Project would have a less than significant impact on the environment. The Mitigated Negative Declaration was available for public review beginning March 28, 2008 through April 17, 2008. A revised Mitigated Negative Declaration was available for public review beginning August 19, 2008 through September 9, 2008. The Environmental Impact Assessment and Mitigated Negative Declaration are attached to CMR: 413:08 SECTION 3.Site and Desiqn Review Findings. i. The use will be constructed and operated in a manner that will be orderly, harmonious, and compatible with existing or potential uses of adjoining or nearby sites, in that: City standards and regulations will help to ensure that the use, or operation, of the site will be conducte~ in a manner that is compatible with the single-family uses located in the immediate area. During construction, it is expected that there will be temporary impacts to the area in terms of construction-related noise, dust/debris and traffic. These impacts will be offset by applicable City construction standards, such as restrictions on hours of construction, the City’s noise ordinance, and standard conditions of approval. The traffic mitigation measure will ensure that the use will continue to be harmonious and compatible with the residential neighborhood. 2. The Project is consistent with the goal of ensuring the~ desirability of investment, or the conduct of business, research, or educational activities, or other authorized occupations, in the same or adjacent areas, in that: The proposed architectural and site changes are compatible with the existing site and surrounding open space area, and the construction of the development will be governed by the Uniform Building Code and other applicable codes, to assure safety and high quality of development. The proposed improvements at the club increase the value of the club property and will not negatively impact the value of the surrounding residential land uses. Page 2 3. Sound princi-ples of environmental design and ecological balance are observed in the Project, in that: The proposed architectural and site changes are consistent with the Site and Design Criteria adopted by the City Council. Sustainable building features are incorporated in the design, including the use of nonreflective glass, the planting of primarily native species, the use of water conserving irrigation, and the use bf permeable pavers. The proposal is also anticipated to reach the certified level on the LEED checklist for green building. The Project will not have a significant environmental impact as indicated by the proposed Mitigated Negative Declaration for this Project. 4. The use will be in accord Comprehensive Plan as follows: with the Palo A1 to Policy L-I: Continue current city policy limiting future urban development to currently developed lands within the urban service area. The boundary of the urban service area is otherwise known a~ the urban growth boundary. Retain undeveloped land west of foothill expressway and Junipero Serra as open space, wi th allowances made for very low-intensity development consistent with the open space character of the area. The project site is west of the Foothill Freeway and is located within the City’s Urban Service Area (map L-2 of the Comprehensive Plan) .The project is consistent with this policy in that the site is not characteristic of open space lands. It is a fully functional golf and country club nearly surrounded by residential development. The project may increase the intensity of use at the facility but it will also improve this valuable economic and community resource making the club more viable and vital for the future without having a negative impact. Policy L-3: Guide development to respect views of the foothills from public streets in the developed portions of the city. The project would not impact views of the foothills or views from public streets. Policy L-4: Maintain Palo Alto’s varied residential neighborhoods while sustaining the vitality of its commercial areas and public facilities. This project enables the Club to maintain its financial viability by providing and improving facilities that will make the club more desirable while controlling any impacts to the surrounding residential community. Page 3 Policy L-5: Maintain the scale and character of the City. Avoid land uses that are overwhelming and unacceptable due to their size and scale. The proposed two story building as conditioned would respect the height limit and would not overwhelm the site or off site uses. Policy L-6: Where possible, avoid abrupt changes in scale and density between residential and non-residential areas and between residential areas of different densities. The proposed spa/fitness building would not create an abrupt change in scale between the existing club property and the adjacent residential uses. Policy L-12: Preserve the character of residential neighborhoods by encouraging new or remodeled structures to be compatible with the neighborhood and adjacent structures. The proposed site improvements are consistent with the existing Club facility that has been a significant fixture within the residential neighborhood for many years. Policy L-48: Promote high quality, creative design and site planning that is compatible with surrounding development and public spaces. The proposed site improvements are designed to have the least impact to the site and adjacent uses. The architecture relates to the existing club house facility in it~ materials while. providing a new updated building design. Policy L-69: Preserve the scenic qualities of Palo Alto roads and trails for motorists, cyclists, pedestrians, and equestrians. The proposed site improvements would preserve the existing scenic qualities of Palo Alto. Policy L-75: Minimize the physical impacts of parking lots. Locate parking behind buildings or underground wherever possible. The new parking for the project is proposed underground. Policy N-I: Mange existing public open space areas and encourage the management of private open space areas in a manner that meets habitat protection goals, public safety concerns, and low impact recreation needs. The proposal improves the public safety by improving the entry/exit of the parking lot to increase visibility for cars entering or exiting the parking lot. Page 4 Policy N-6: Through implementation of the Site and Design process and the Open Space zone district regulations, minimize impacts of any new development o~ views of the hillsides, on the open space character, and the natural ecology of the hillsides. The proposed development will not impact views of the hillsides, the open space character, or the natural ecology. The new building is proposed on a developed golf course property and will not disrupt natural ecology. It has been specifically sited to minimize the off site views and landscape screening has been conditioned to further minimize the view of the building from the adjacent residential properties. Policy N-21: Reduce non-point source pollution in urban runoff from residential, commercial, industrial, municipal, and transportation land uses and activities. The new trench drain in the parking lot will capture pollutants that have been deposited on the parking lot surface and carry them to a retention basin where they will be naturally filtered as the water percolates back into the earth. Policy N-22: Limit the amount of impervious surface in new development or public improvement projects to reduce urban runoff into storm drains, creeks, and San Francisco Bay. The building has been designed to be two stories to limit the ground floor impervious footprint. The project also reduces the existing impervious coverage of the site ~y more than 900 square feet. Goal N-8: An environment that minimizes the adverse impacts of noise. The mitigations specified in the Mitigated Negative Declaration will ensure that any noise impacts are mitigated. Policy N-7: the Project is consistent with the thirteen City of Palo Alto Open Space Development Criteria as follows: The development should not be visually intrusive from public roadways and public parklands. As much as possible, development should be sited so it is hidden from view. The proposed project would not be visible from public parkland and would be minimally visible from a public roadway (Alexis Drive). The spa/fitness building is proposed in a hollow between the existing club building and a steep upslope. There are a series of large canary island pines that help to screen the view from Alexis at the entry to the parking lot. Page 5 o ° Development should be located away from hilltops and designed to not extend above the nearest ridge line. The proposed building would not be located on a hilltop and, complies with the 25 foot height limit of the district. Site and structure design should take into consideration impacts on privacy and views of neighboring properties. As conditioned, to reduce the buildings visibility with landscape material, the neighbor would be left with only a filtered view of the building. Development should be clustered, or closely grouped, in relation to the area surrounding it to make it less conspicuous, minimize access roads, and reduce fragmentation of natural habitats. The project has been designed to reduce the building footprint. The new parking is proposed underground beneath the building. It is proposed with two stories to reduce the site coverage. It has been sited to have the least visual impacts on and off site. This is a golf and country club property, the proposal would not impact natural habitats. o Built forms and landscape forms should mimic the natural topography. Building lines should follow the lines of the terrain, and trees and bushes should appear natural from a distance. The design of the building has partially attempted to mimic the terrain by stepping the building to follow the steep slope at the front of the building. Additional landscaping is proposed throughout the project area to enhance the existing landscaping of~the, property. Existing trees with a circumference of 37.5 inches, measured 4.5 feet above the ground level, should be preserved and integrated into the site design. Existing vegetation should be retained as much as possible. The landscape plan preserves as many existing mature trees as possible. o o Cut is encouraged when it is necessary for geotechnical stability and to enable the development to blend into the natural topography. Fill is generally discouraged and should~ never be distributed within the driplines of existing trees. Locate development to minimize the need for grading. The project has been designed to cut the building into the hillside to reduce the height and visibility. The cut material will be used within the golf course and carried down Page Mill Road. To reduce the need for cut and fill and to reduce potential runoff, large, flat expanses of impervious surfaces should be avoided. Large expanses of impervious surfaces have been avoided in that the new building was designed as a two story program to reduce the building footprint. The driving range Page 6 area has been redesigned to reduce the amount of impervious surface on the~ site as well. Other areas would also be modified to become more pervious with an overall reduction of impemvious coverage of over 900 square feet. 0 Buildings should use natural materials and earth tone or subdued colors. Natural building materials in earth tones are proposed. All proposed building materials are natural, in earth tone colors that will blend with the surroundings as well as the existing club house building. i0. Landscaping should be native species that require little or no irrigation. Immediately adjacent to structures, fire retardant plants should be used as a fire prevention technique. The proposed landscaping incorporates a large number of native species plantings which will minimize the need for irrigation. ii. Exterior lighting should be low-intensity and shielded from view so it is not directly visible from off-site. Th~ exterior lighting fixtures primarily provide pathway lighting and are directed downward to avoid casting light off site. 12.Access roads should be of a rural rather than urban character. (Standard curb, gutter, and concrete sidewalk are usually inconsistent with the foothills environment.) The project will not involve the addition of any access road. 13.For development in unincorporated areas, ground coverage should be in general conformance wi~h Palo Alto’s Open Space District regulations. The project is not within an unincorporated area. SECTION 4. CONDITIONAL USE PERMIT Findings. Neither the director, nor the city council on appeal, shall grant a conditional use permit, unless it is found that the granting of the application will: 1. Not be detrimental or injurious to property or improvements in the vicinity, and will not be detrimental to public~ health, safety, general welfare, or convenience; With the proposed conditions of approval and the mitigations outlined in the Mitigated Negative Declaration the project will not be detrimental or injurious to neighboring properties. The building is sited down hill from adjacent residences to have the least visual impact and additional landscaping is proposed to soften the views of the building where they do exist. The building as proposed in compliance with the 25 foot height limit will not block the significant Bay views of the uphill neighbors. Conditions of approval limit the club membership levels, noise levels, lighting, and the number of large events per year to ensure the club activities do not disturb the neighbors. Traffic and parking Page 7 issues are addressed by the mitigation measures that require a Transportation Demand Management plan and measures to insure parking needs are met on site. Other measures require the implementation of specific building requirements to ensure the people within the building will be safe in the event of an earthquake. 2. Be located and conducted in a manner in accord with the Palo Alto Comprehensive Plan and the purposes of this title (zoning). The project is in compliance with the Comprehensive plan as outlined in the findings listed above. The project is also in conformance with the zoning requirements and improves existing non- complying aspects such as reducing the amount of site coverage and reducing the parking deficit. SECTION 5.SITE AND DESIGN APPROVALS GRANTED. Site and Design Approval is granted by the City Council under Palo Alto Municipal Code Section 18.30. (G) for application 06PLN-00197, subject to the conditions of approval in Section 6 of the Record. SECTION 6.Conditions of Approval. PLANNING DIVISION o o The project shall be implemented as shown on plans submitted April 13, 2008 on file with the City of Palo Alto Planning Division except as modified by these conditions of approval. The Record of Land Use Action in its entirety shall be printed on the plans submitted for building permit. The following mitigations, as listed in the Mitigated Negative Declaration, shall be implemented: Mitigation Measure #I: Require automatic night shades to block any light leak from the windows of the fitness building in the evening. The automatic night shades shall be shown on the building permit plans. Mitigation Measure #2: The recommendations of the Geotechnical Investigation by Murray Engineers (December 2006) shall be required to be implemented as a condition of project approval and approved prior to building permit issuance. Mitigation Measure #3: The applicant shall select quieter HVAC equipment, employ sound attenuation techniques, or place it further from the property line such that the average 24 hour noise level will not increase by 5 decibels or more in a residential area. The location, design, and specification for such equipment shall be provided for approval by staff prior to issuance of a building permit. Page 8 Mitigation Measure #4: The applicant shall develop a transportation demand management (TDM) program to reduce average daily weekday trips by at least 37 trips, and to reduce average daily weekend trips by at least 65 trips. The program shall be designed and submitted for review by the City’s transportation staff, shall be demonstrated to be enforceable, and must be approved prior to issuance of any grading or building permit. The program shall be proposed to the satisfaction of the director, shall include proposed performance targets for parking and or trip reduction, and shall designate a single entity to implement the proposed measures. Monitoring reports shall be submitted to the director each year for a period of five years after building occupancy noting the effectiveness of the proposed measures as compared to the initial performance targets and suggestions for modifications if necessary to enhance parking and/or trip reductions. In no event shall social memberships increase above 175 members unless the TDM traffic targets are met to the satisfaction of the director. The TDM program may include but is not limited to the following measures: a)Provide incentives to Club members that will encourage them to combine their trips to the facility rather than make multiple trips (joint usage) or carpooling for employees and guests. An example of this could be the issuance of cards that provide for free golf cart rentals, free exercise classes etc. for x number of combined trips or carpool/vanpool trips. b)Decrease the size and/or frequency of exercise classes in the new fitness facility. c)Open the fitness facility on Mondays (when golf is normally closed) and close it on Wednesday, which is typically the busiest weekday at the club. d)Control the volume of use of the new private banquet rooms or other Club facilities as necessary to ensure that the traffic volume stays below the TIRE index. Mitigation Measure #5: The club shall employ measures to ensure that all of the parking demand generated by club activities shall be met on site such that no club users are parking on Alexis Drive or its side streets. These measures shall include but are not limited to mandatory valet parking for those events that may exceed the typical capacity of available parking at the club and the use of the golf course for overflow parking if needed. Page o 0 o The applicant shall meet with staff during the planting stage to evaluate the adequacy of the planting to provide a visual screen of the building and tennis courts as discussed by theP&TC. Additional plantings shall be required by the city if the city determines the plantings are not adequate and the applicant shall work with staff to finalize the landscape details relative to the parking lot and cedar tree ii prior to building permit issuance. There shall be no night lighting of the tennis courts. The proposed development is subject to Development Impact fees estimated at $146,153.69. The fees must be paid prior to building permit issuance. The actual fees will be calculated prior to building permit issuance. Any proposed exterior lighting shall be shown on the final construction drawings and shall be subject to the review and approval of the Palo Alto Planning Division. All lightin~ shall be minimal and shall direct light down and shield light away from the surrounding residences and open space lands. The automatic night shades for the clearstory windows above the main entry shall be maintained and operated in good working order. o i0. Ii. 12. 13. The expansion of the club triggers the City’s requirement for a Conditional Use Permit. Approval ~of the Site and Design application is contingent upon the approval of the Conditional Use Permit. Palo Alto Hills Golf and Country Club memberships shall be limited to ensure that traffic impacts will not occur. The Club shall be limited to 425 Proprietary members and 200 Social members. All new windows, glass doors and skylights shall be of a non- reflective material. In areas with slopes in excess of ten percent, the driveway surface shall be engineered to provide adequate wet traction to emergency vehicles. Prior to building permit, an engineering study of the adequacy of the material chosen shall be reviewed by the Fire Department. No area represented as permeable pa~ing in project plans dated March 27, 2008 shall be converted to impervious paving unless an equal area of impervious paving is converted to permeable paving, subject to the approval by the Director of Planning. Page i0 14. 15. 17. If during grading and construction activities, any archeological or human remains are encountered, construction shall cease and a qualified archaeologist shall visit the site to address the- find. The Santa Clara County Medical Examiner’s office shall be notified to provide proper direction on how to proceed. If any Native American resources are encountered during construction, construction shall cease immediately until a Native American descendent, appointed by the Native American Heritage Commission of the State of California, is able to evaluate the site and make further recommendations and be involved in mitigation planning. To deter the potential spread of sudden oak death disease in Palo Alto, the City requires that you perform the work according to the county quarantine restrictions in the attached Sudden Oak Death Best Management Practices http://www.citY0fpaloalto.org/environment/default.asp The following controls shall be implemented for the duration of project construction to minimize dust related construction impacts: All active construction areas shall be watered at least twice daily. All trucks hauling soil, sand, and loose materials shall be covered or shall retain at least two feet of freeboard. All paved access roads, parking areas, and staging areas at the construction site shall be swept and watered daily. ~ ¯Streets shall be swept daily if visible soil material is carried onto adjacent public streets. Construction activities shall comply with Chapter 9.10 (Noise) of the PAMC (limiting construction between the hours of eight a.m. and six p.m. Monday - Friday, nine a.m. and six p.m. on Saturday, and construction activities prohibited on Sunday and Holidays) to reduce construction-related noise impacts to less than significant levels. 18. 19. During construction, the site shall be kept clear of debris on a daily basis. Prior to the issuance of a demolition permit to remove the existing structures on site, the applicant shall submit to Planning Staff for review and approval, a detailed deconstruction program for removal of the existing structure(s). Applicant shall consider, as part of the program, to allow the salvage company two weeks to deconstruct the buildings. Page ii 20.To the extent permitted by law, the Applicant shall indemnify and hold harmless the City, its City Council, its officers, employees and agents (the ~indemnified parties")from and against any claim, action, or proceeding brought by a third party against the indemnified parties and the applicant to attack, set aside or void, any permit or approval authorized hereby for the Project, including (without limitation) reimbursing the City its actual attorneys fees and costs incurred in defense of the litigation. The City may, in its sole discretion, elect to defend any such action with attorneys of its own choice. PLANNING DIVISION ARBORIST Prior to submittal of buildinq permit 21.To offset the loss of parking lot shade tree potential, install Engineered Soil Mix (ESM) in specified areas. The new trench drain and surface storm water runoff (600’-800’) will cause the removal of several planter islands, existing shade trees with diminished area for replanting new trees. Without provision for significant rooting area for the new trees, they will not achieve normal shade potential. Plans and Civil Drawings shall designate the parking space on each side of the six replaced planter islands and the north terminal end (next to two cedar trees) to be installed with ESM as base material for parking areas near tree plantings to improve shade tree potential, minimize tree root damage to curb and maximum service life of the parking surface. The technology should be counted toward ~ny points awarded for LEED certification rating. Public Works Engineering Specifications, Section 30 and Detail #604a shall be specified for ~ minimum of 24" depth and be clearly shown in the designated areas. 22.Any revision to the plans which may affect the welfare of the trees and vegetation to be preserved shall be reviewed by the Project Site Arborist and Planning Arborist prior to approval or implementation at the site. 23.Site Plan Requirements. The final Plans submitted for building permit shall include the following notes on the relevant sheets. Sheet T-I Tree Protection-it’s Part of the Plan (http://www.cityofpaloalto.orq/environment/urban canopy .asp ), complete the Tree Disclosure Statement and Inspection and Reporting Schedule (check #1-6). The Tree Preservation Report approved by staff, Barrie Coate and Associates, dated June 26, 2007, shall be printed on Sheet T-I and/or T-2 (all sheets) and implemented in full. A note shall be applied to the Page 12 24. site plan stating, "All measures identified in the Tree Protection Report on Sheet T-I and the approved plans shall be implemented, including inspections and¯required watering of trees. Protective Tree Fencing Type. Delineate on grading plans, irrigation plans, site plans and utility plans, Type II fencing around Street Trees and Type I fencing around Protected/Designated trees as a bold dashed line enclosing the Tree Protection Zone (per the approved Tree Preservation Report) as shown on Detail #605, Sheet T-I, and the City Tree Technical Manual, Section 6.35-$ite Plans. Civil plans, grading plans, irrigation plans, site plans and utility plans. Civil and relevant site plan sheets shall include a note applying to the trees to be protected, including neighboring trees stating: "Regulated Tree--before working in this area contact the Project Site Arborist at 408-353-1052" e o Utility plan sheets shall include the following note: ~Utility trenching shall not occur within the TPZ of any retained and protected tree. Contractor is responsible for ensuring the instruction is conveyed to any City crew or other contractors." Landscape Plans. Make the following changes in plant material for the following species, and planting specifications: Cedrus deodora, Quercus agrifol~a, Quercus suber, Pistachia chinensis: 24" box size. ¯Correct the discrepancy between Incense Cedar and Cedrus atlantica ’Glauca’ (clarify which is proposed) A detailed landscape and irrigation plan encompassing on-and off-site plantable areas out to the curb shall be approved by the Architectural Review Board. A Landscape Water Use statement, water use calculations and a statement of design intent shall be submitted for the project. A licensed landscape architect and qualified irrigation consultant will prepare these plans, to include: C o All existing trees identified both to be retained and removed including street trees. Complete plant list indicating tree and plant species, quantity, size, and locations. Irrigation schedule and plan. Fence locations. Lighting plan with photometric data. Trees to be retained shall be irrigated, aerated and maintained as necessary to ensure survival. go j o All mew trees planted within the public right-of-way, as shown onothe approved plans, shall be installed per Public Works Standard Tree Well Diagram #604, shall have a tree-pit dug at least twice the diameter of the root ball. The Public Works Detail #604 shall be shown on Landscape Plans. Landscape plan shall include planting preparation details for trees specifying digging the soil to at least 30-inches deep, backfilled with a quality topsoil and dressing with 2-inches of wood or bark mulch on top of the root ball keeping clear of the trunk by 1-inch. Automatic irrigation shall be provided to all trees. For trees, details on the irrigation plans shall show two bubbler heads mounted on flexible tubing placed at the edge of the root ball. Bubblers shall not be mounted inside an aeration tube. The tree irrigation system shall be connected to a separate valve from other shrubbery and ground cover, pursuant to the City’s Landscape Water Efficiency Standards. Irrigation in the right-of-way requires a street work permit per CPA Public Works standards. Landscape Plan shall ensure the backflow device is adequately obscured with the appropriate screening to minimize visibility (planted shrubbery is preferred, painted dark green, decorative boulder covering acceptable; wire cages and bag covers are discouraged During construction 25.Tree Protection Statement. A written~statement from the contractor verifying that the required protective fencing is in place shall be submitted to the Building Inspections Division prior to demolition, grading or building permit issuance. The fencing shall contain required warning sign and remain in place until final inspection of the project. Tree fencing shall be adjusted after demolition if necessary to increase the tree protection zone as required by the project arborist. 26.Project Arborist Inspection. The contractor shall call for an inspection by the Project Arborist. A final inspection and report by the project arborist shall evaluate all trees to be retained and protected, as indicated in the approved plans, the activity, health, welfare, mitigation remedies for injury, if any, and for the long term care of the trees for the new owner. The report shall provide written verification to the Planning Department that all trees, shrubs, planting and irrigation are installed and functioning as specified in the approved plans. The final arborist report shall be provided to the Planning Department prior to written request for temporary or final occupancy. Page 14 The final report will be used to navigate the security guarantee return~process. 27. 28. The applicant shall be responsible for the repair or replacement of any publicly owned trees that are damaged during the course of construction, pursuant to Section 8.04.070 of the Palo Alto Municipal Code. The following general tree preservation measures apply to all trees to be retained: No storage of material, topsoil, vehicles or equipment shall be permitted within the tree enclosure area. The ground under and around the tree canopy area shall not be altered. Trees to be retained shall be irrigated, aerated and maintained as necessary to ensure survival. Prior to occupancy 29. 30. The Planning Department shall be in receipt of written verification that the Landscape Architect has inspected all trees, shrubs, planting and irrigation and that they are installed and functioning as specified in the approved plans. Project Arborist Inspection. The contractor shall call for an inspection by the Project Arborist. A final inspection and report by the project arborist shall evaluate all trees to be retained and protected, as indicated in the approved plans, the activity, health, welfare, mitigation remedies for injury, if any, and for the lon~ term care of the trees for the new owner. The final arborist report shall be provided to the Planning Department prior to written request for temporary or final occupancy. The final report will be used to navigate the security guarantee return process. Post construction 31.Maintenance. All landscape shall be reasonably maintained, watered, fertilized, and pruned (topping and unbalancing is prohibited) according to Best Management Practices-Pruning (ANSI A300-Current Version) and the CPA Tree Technical Manual. UTILITIES MARKETING Prior to issuance of either a Building Permit or Grading Permit, all common area landscaping shall be approved by Utilities Marketing Services, a division of the Utilities Department. For projects with more than 1,500 square feet of landscaped area, a water budget shall be assigned to the project and a dedicated irrigation water meter shall be required. The landscape shall Page 15 conform to the Landscape Water Efficiency Standards of the City of Palo Alto. 32.The Landscape Water Efficiency Standards state that ~golf courses are exempt from a maximum water allowance. However, every other requirement of these standards is applicable, including estimation of irrigation water requirements." The following documents need to be submitted at the Building Permit phase: Design Intent Statement Landscape Water Use Statement Water Use Calculations Irrigation Plan Grading Plan Landscape Plan 33.All documents and information to comply with the Landscape Water Efficiency Standards can be found on the City of Palo Alto Utilities website or at the following linkf http://www.cpau.com/docs/factsheets/water/landstandO82002.pdf Please contact Amanda Cox with Utility Marketing Services at (650) 329-2417 for further information or questions. UTILITIES WATER GAS WASTEWATER 34.The applicant shall submit a completed water-gas-wastewater service connection application - load sheet for City of Palo Alto Utilities. The applicant must provide all the information requested for utility service demands (water in fixture units/g.p.m., gas in b.t.u.p.h, and sewer in fixture units/g.p.d.). 35. 36. 37. The applicant shall submit improvement plans for utility construction. The plans must show the size and location of all underground utilities within the development and the public right of way including meters, backflow preventers, fire service requirements, sewer mains, sewer cleanouts, sewer lift stations and any other required utilities. The applicant must show on the site plan the existence of any water well, or auxiliary water supply. The applicant shall be responsible for installing and upgrading the existing utility mains and/or services as necessary to handle anticipated peak loads. This responsibility includes all costs associated with the design and construction for the installation/upgrade of the utility mains and/or services. Page 16 38. 39. 40. 41. 42. 43. 44. 45. Sewer drainage piping serving fixtures located below the next upstream sewer main manhole cover shall be protected by an approved backwater valve per California Plumbing Code 710.0~ The upstream sewer main manhole rim elevation shall be shown on the plans. The applicant’s engineer shall submit flow calculations and system capacity study showing that the on-site and off-site water and sanitary sewer mains and services will provide the domestic, irrigation, fire flows, and wastewater capacity needed to service the development and adjacent properties during anticipated peak flow demands. The study shall meet the requirements and the approval of the WGW engineering section. No downstream overloading of existing sewer main will be permitted. Existing wastewater laterals that are not plastic (ABS, PVC, or PE) shall be replaced at the applicant’s expense. The applicant shall pay the capacity fees and connection fees associated with the installation of the new utility service/s to be installed by the City of Palo Alto Utilities. The approved relocation of services, meters, hydrants, or other facilities will be performed at the cost of the person/entity requesting the relocation. Each place of business shall have one domestic water service, one gas meter and sewer lateral connection shown on the plans. A separate water meter and backflow preventer is required to irrigate the approved landscape plan. Show the location of the irrigation meter on the plans. This meter shall be designated as an irrigation account an no other water service will be billed on the account. The irrigation and landscape plans submitted with the application for a grading or building permit shall conform to the City of Palo Alto water efficiency standards. An approved reduce pressure principle assembly (RPPA backflow preventer device) shall be installed for all existing and new water connections from Palo Alto Utilities to comply with requirements of California administrative code, title 17, sections 7583 through 7605 inclusive. The RPPA shall be installed on the owner’s property and directly behind the water meter. Show the location of the RPPA on the plans. Inspection by the utilities cross connection inspector is required for the supply pipe between the meter and the assembly. An approved double detector check valve shall be installed for the existing or new water connections for the fire Page 17 46. 47. 48. system to comply with requirements of California administrative code, title 17, sections 7583 through 7605 inclusive. Double check detector check valves shall be installed on the owner’s property adjacent to the property line. Show the location of the double detector check assembly on the plans. Inspection by the utilities cross connection inspector is required for the supply pipe between the City connection and the assembly. The gas meter location must conform with utilities standard details. All existing water and wastewater services that will not be reused shall be abandoned at the main per WGW utilities procedures. All utility installations shall be in accordance with the City of Palo Alto utility standards for water, gas & wastewater. PUBLIC WORKS ENGINEERING DEPARTMENT 49.Grading & Excavation Permit: A Grading & Excavation Permit is required for the project. The plans submitted for this permit should only show the before and after grades, the drainage, and any on-site drainage systems. Other site utilities may be shown on the grading plan for reference only and should be so noted. See PAMC 16.28 for more information. The grading plans should show how the site will be protected from storm,water pollution during and at the concluslon of grading. Include in submittal for a building permit 50.C.3: This project is required to meet the California Regional Water Quality Control Board’s revised provision C.3 for storm water regulations, incorporated into the Palo Alto Municipal Code, Section 16.11, that apply to land development projects that create or replace I0,000 square feet or more of impervious surface. These regulations require that the project incorporate a set of permanent site design measures, source controls, and treatment controls that serve to protect storm water quality. The applicant will be required to calculate, develop and incorporate permanent storm water pollution prevention measures (preferably landscape-based treatment controls such as bioswales, filter strips, and permeable pavers rather than mechanical measures that require long-term maintenance) to treat a specified percentage of site runoff. The applicant must designate a party to maintain the control measures for the life of the improvements and must enter into a maintenance agreement with the City. The City will inspect the treatment measures yearly and charge an Page 18 inspection fee. There is a $750 C.3 plan check fee that will be collected upon submittal for a grading or building permit. 51.Survey Controls~_ Applicant shall adhere to North American Datum 1983 State Plane Zone 3 for horizontal survey controls and NGVD 1927 for vertical controls survey throughout the design process. 52.Impervious Surface Area: The proposed development will result in a change in the impervious area of the property. The applicant shall provide calculations showing the adjusted impervious area with the building permit application. A Storm Drainage Fee adjustment on the applicant’s monthly City utility bill will take place in the month following the final approval of the construction by the Building Inspection Division. The impervious area calculation sheets and instructions are available from Public Works Engineering. 53.SAPPP: If the proposed development will disturb more than one acre of land, then the applicant will be required to comply with the State of California’s General Permit for Storm Wate9 Discharges Associated with Construction Activity. This entails filing a Notice of Intent to Comply (NOI), paying a filing fee, and preparing and implementing a site specific storm water pollution prevention plan (SWPPP) that addresses both construction-stage and post-construction BMP’s for storm water quality protection. The applicant is required to submit two copies of the NOI and the draft SWPPP to the Public Works Department for review and approval prior to issuance of the grading or building permit. To determine how much of the site is being disturbed, provide a calculation/table on the site plan. 54.If less than one acre of site is disturbed, then the formal SWPPP described above will not be required, but the City will still require that the applicant provide a site plan that incorporates best management practices (BMP’s) to ensure that storm water pollution is controlled during construction. Also, include the City’s standard "Pollution Prevention - It’s Part of the Plan" sheet, in the plan set. Copies are available from Public Works at the Development Center. 55.Truck Route: Add a note to the plans that all truck routes shall conform to the City of Palo Alto’s Trucks and Truck Route Ordinance, Chapter 10.48, and the route map, which outlines truck routes available throughout the City of Palo Alto. BUILDING DIVISION 56.The plans submitted for the building permit shall include the full scope of th~ construction including construction documents for proposed site development, utility installations, architectural, structural, electrical, Page 19 57. 58. 59. 60. 61. 62. 63, 64. 65. 66. plumbing and mechanical work associated with the proposed detached building and addition to the existing building. The applicant shall be schedule and attend a pre-application meeting with Building Division staff to review the permit application process and to verify that the permit application will comply with all of these conditions. A separate building permit shall be required for the construction of the new detached building and additions to the existing building. A separate grading permit may be required if the volume of cut and/or fill material exceeds i00 cubic yards. The excavation of the basement parking garage is included as part of the building permit and does not require a separate grading permit. The design and construction details of building components that are not included in the plans submitted for building permit and are to be ~deferred" shall be limited to as few items as possible. The list of deferred items shall be reviewed and approved prior to permit application. The location of the building’s electrical service shall require prior approval by the Building Division and shall be located at an exterior location or in a room or enclosure accessible directly from the exterior. The plans submitted for building permit shall include an analysis of the allowable floor area based on specified types of construction for the mixed occupancies located in sections or portions 1 and 2 of the existing building. Plans submitted for the new additions shall include floor plans, elevations and details in compliance with current laws for the physically disabled applicable to existing buildings. The accessible parking stalls in tandem and located along the driveway in front (east side) of the building will not be permitted. Due to the scale of the overall project, the applicant shall be required to utilize a 3rd party plan check agency to conduct the building code plan review. A list of the agencies approved by the City of Palo Alto is available at the Development Center. An oil/water separator shall be installed in the parking garage. Santa Clara County Health Dept. approval may be required for the dining / bar expansions. Please submit 2 copies of plans Page 2 0 stamped and approved by the Health Dept., prior to permit issuance. PUBLIC WORKS WATER QUALITY CONTROL PLANT 67.PAMC 16.09.032(B)(17) Covered Parking Drainplumbing for parking garage floor drains must be connected to an oil/water separator with a minimum capacity of i00 gallons, and to the sanitary sewer system 68.PAMC 16.09.032 Loading Docks with Chemicals Connections to the storm drain shall, not be permitted for 1 oading docks where chemicals, hazardous materials, grease, oil, or waste products are handled. 69. Loading dock drains may be connected to the sewer only if the area in which the drain is located is covered or protected from rainwater run-on by berms and/or grading, and appropriate wastewater treatment approved by the superintendent is provided. Any loading dock area with a _ sanitary sewer drain shall be equipped with a fail-safe valve, which shall be kept closed during periods of operation. PAMC 16.09.106(d)(4) Loading Docks without Chemicals Loading dock drains to the storm drain system may be allowed if a valve or equivalent device is provided, which remains closed except when it is raining. 70.PAMC 16.09.106(e) Dumpsters for New ind Remodeled Facilities New dumpster areas shall be covered. The area shall be designed to prevent water run-on to the area and run-off from the area. 71.PAMC 16.09.032(b) (8) Condensate from HVAC Condensate lines shall not be connected or allowed to drain to the storm drain system. 72.PAMC Section 16.09.103(a) Grease Interceptors for Food Service Facilities A grease interceptor shall be installed with a minimum capacity of 750 gallons. The grease interceptor must be sized in accordance with Appendix H of the Uniform Plumbing Code. The sizing calculation must be submitted with the plans. 73.PAMC 16.09.103(e) Prohibition Against Garbage Disposals The installation of a garbage grinder at any food service facility is prohibited after January i, 2003. The kitchen cannot utilize a garbage grinder for food waste disposal to the sanitary sewer. Page 21 FIRE DEPARTMENT 74.The current proposed design does not meet the fire access requirements in Article 9 of the Cal. Fire Code. Applicant shall propose an alternate method which increases the fire resistance of the building and provides for hose outlets to be spaced around the perimeter of the building in approved locations. NOTE: The Building Permit will not be approved without an acceptable alternate method in place. SECTION 7. CONDITIONAL USE PERMIT GRANTED. Conditional Use Permit Approval is granted by the City Council under Palo Alto Municipal Code Section 18.76.010 for application 06PLN-00197, subject to the conditions of approval in Section 8 of the Record. SECTION 8.Conditional Use Permit Conditions of Approval. Palo Alto Hills Golf and Country Club memberships shall be limited to 425 Proprietary members and 200 Social members. o Events of more than 350 people shall be limited to no more than 12 in one calendar year. o The club shall investigate and respond to all neighbor complaints regarding parking and other matters. o o The City may notice a hearing to modify the Conditional Use Permit when there is evidence of health and safety concerns (this includes traffic and noise issues). The club shall keep a record of events and include the number of guests associated with them. This record, or a copy, shall be made available to the City upon request. The club shall keep a record of any neighbor complaints and shall be made available for review by the City on an as requested basis. A record of the number of busses used on an annual basis shall be maintained. This record, or a copy, shall be made available to the City upon request. 8.Busses shall not be left idling for long periods of time. o Events and activities at the club shall be in compliance with the limitations established by the noise ordinance at all times. I0.There shall be no lighting of the tennis courts. Page 22 ii. 12. The height.of the landscaping at the front of the property shall be maintained such that a 300 foot sight line is maintained per -the requirements of the Transportation Division. The following mitigations, as listed in the Mitigated Negative Declaration, are applicable to the Conditional Use Permit and are repeated here and shall be implemented: Mitigation Measure #i: Require-automatic night shades to block any light leak from the windows of the fitness building in the evening. The automatic night shades shall be shown on the building permit plans. Mitigation Measure #3: The applicant shall select quieter HVAC equipment, employ sound attenuation techniques, or place it further from the property line such that the average 24 hour noise level will not increase by 5 decibels or more in a residential area. The location, design, and specification for such equipment shall be provided for approval by staff prior to issuance of a building permit. Mitigation Measure #4: The applicant shall develop a transportation demand management (TDM) program to reduce average daily weekday trips by at least 37 trips, and to reduce average daily weekend trips by at least 65 trips. The program shall be designed and submitted for review by the City’s transportation staff, shall be demonstrated to be enforceable, and must be approved p~ior to issuance of any grading or building permit. The program shall be proposed to the satisfaction of the director, shall include proposed performance targets for parking and or trip reduction, and shall designate a single entity to implement the proposed measures. Monitoring reports shall be submitted to the director each year for a period of five years after building Occupancy noting the effectiveness of the proposed measures as compared to the initial performance targets and suggestions for modifications if necessary to enhance parking and/or trip reductions. In no event shall social memberships increase above 175 members unless the TDM traffic targets are met to the satisfaction of the director. The TDM program may include but is not limited to the following measures: a)Provide incentives to Club members that will encourage them to combine their trips to the facility rather than make multiple trips (joint usage) or carpooling for employees and guests. An example of this could be the issuance of cards that provide for free golf cart rentals, free exercise classes etc. for x number of combined trips or carpool/vanpool Page 23 b) trips. Decrease the size and/or frequency of exercise classes in the new fitness facility. c) Open the fitness facility on Mondays (when golf is normally closed) and close it on Wednesday, which is typically the busiest weekday at the club. d)Control the volume of use of the new private banquet rooms or other Club facilities as necessary to ensure that the traffic volume stays below the TIRE index. Mitigation Measure #5: The club shall employ measures to ensure that all of the parking demand generated by club activities shall be met on site such that no club users are parking on Alexis Drive or its side streets. These measures shall include but are not limited to mandatory valet parking for those events that may exceed the typical capacity of available parking at the club and-the use of the golf course for overflow parking if needed. 13.To the extent permitted by law, the Applicant shall indemnify and hold harmless the City, its City Council, its officers, employees and agents (the "indemnified parties")from and against any claim, action, or proceeding brought by a third party against the indemnified parties and the applicant to attack, set aside or void, any permit or approval authorized hereby for the Project, including (without limitation) reimbursing the City its actual at~torneys fees and costs incurred in defense of the litigation. The City may, in its sole discretion, elect to defend any such action with attorneys of its own choice. SECTION 9.Terms of Approval. Conditional Use Permit Approval. In the event actual construction of the project is not commenced within twelve months of the date of council approval, the approval shall expire and be of no further force or effect, pursuant to Palo Alto Municipal Code Section 18.77.090 Site and Design Approval. In the event actual construction of the project is not commenced within two years of the date of council approval, the approval shall expire and be of no further force or effect, pursuant to Palo Alto Municipal Code Section 18.30 (@) .080. PASSED: Page 24 AYES: NOES: ABSENT: ABSTENTIONS: ATTEST:APPROVED: City Clerk APPROVED AS TO FORM: Director of Planning and Community Environment Senior Deputy City Attorney PLANS AND DRAWINGS REFERENCED: i.Development Plans prepared by Cody Anderson Wasney Architects, consisting of 36 pages, received June ii, 2008. Page 2 5 ~TTACHMENT B CRy of City Manager’s Report TO:HONORABLE CITY COUNCIL FROM: DATE: SUBJECT: CITY MANAGER DEPARTMENT: PLANNING AND COMMUNITY ENVIRONMENT SEPTEMBER 15, 2008 CMR: 365:08 APPROVAL OF A MITIGATED NEGATIVE DECLARATION, SITE AND DESIGN REVIEW, CONDITIONAL USE PERMIT AND RECORD OF LAND USE ACTION FOR A NEW SPA AND FITNESS FACILITY, BELOW GRADE PARKING, TENNIS COURT AND OTHER SITE IMPROVEMENTS LOCATED WITHIN THE OPEN SPACE. (OS) ZONE DISTRICT AT 3000 ALEXIS DRIVE RECOMMENDATION Staff, the Plmming and Transportation Commission, recommend that the City Council approve the following: and the Architectural Review Board 1.Mitigated Negative Declaration, prepared for the property located at 3000 Alexis Drive, in accordance with the California Environmental Quality Act (Attactmaent G). A Record of Land Use Action approving a Site and Design Review and Conditional Use Pernait applications to allow the construction of a new spa and fitness facility, and other site improvements subject to the findings and conditions of approval contained in the draft Record of Land Use Action (Attachment A). BACKGROUND The project is located in the Palo Alto Foothills at the Palo Alto Hills Golf and Country Club, on a 125 acre site in the Open Space (OS) zone district, surrounded by single family residences and the Arastradero Preserve. The Comprehensive Plan map designation is open space/controlled development. The adjacent residential development is primarily zoned Residential Estate (RE) with some properties in the OS zone district. The proposed two-story, spa/fitness center would be located at the south end (left side) of the existing country club building at the southeast side of the property near Alexis Drive. The 16,276 square foot building would include a basement providing 27 parldng spaces and a storage and laundry facility, with ground floor areas for reception, hot tub, spa, locker room, teen room, and child watch. The second floor would contain a workout room and two exercise rooms for group classes. CMR: 365:08 Page 1 of 5 Changes to the existing clubhouse would include the addition of a porte cochere and two small banquet rooms, relocation of the existing administrative offices, new roof screens, and an expansion of the pro shop and members’ bar area. The proposal also includes a new turf tem~is comet, a small wading pool, and replacement and reconfiguration of the existing driving range area. BOARD/COMMISSION REVIEW AND RECOMMENDATIONS ARB Review On September 7, 2006, the Architectural Review Board (ARB) reviewed conceptual plans for a building that exceeded the height !imit, supporting the original butterfly roof design that increased the building height. The ARB encouraged the use of story poles to study the potential impact on adjacent residents’ views, though there was no public testimony about the building height. The board expressed some concerns over the introduction of the mansard roof to act as a screen for existing mechanical equipment and how the new building connects to the old. The first formal ARB hearing was held on May 15, 2008, with a review of revised plans that comply with the 25 foot height limit of the Open Space zone district. The board was generally supportive of the project but continued the item requesting that the applicant come back witff the following information: All landscape lighting fixtures and locations with consideration for step lights in the stairs; ®Bike rack locations and details; ,Details for the concrete walls and the railings; *Reconsideration of the porte cochere roof; ,Reconsideration of the fenestration at the front right side of the spa/fitness building; ,Consideration of integral color stucco;~ ~Depiction of how the roof will cover the wall portion of the proposed spa/fitness building that does not have overhangs to show how rain will not run down the inside of the wall. At the ARB’s second hearing on June 5, 2008, the ARB voted (5-0) to recommend approval with an additional condition. The applicant has recently proposed to add new trees to the existing parking lot and to remove a large cedar tree in front of the building. Staff is still working with the applicant to finalize the specifics of the landscape r~visions and the ARB has recommended approval with the condition that the applicant work with staff to finalize these details. This condition has been added to condition number five. There were no public speakers on this item. Plamaing and Transportation Commission (PTC) Hearings The proposal was heard by the PTC on April 2, 2008. The PTC unanimously voted (6-0-1-0) to recommend approval with staff’s conditions including the building height reduction, with two added conditions: (1) that the Conditional Use Permit limit the club membership to 425 proprietary membei-s and 200 Social members, and (2) that the applicant revise the landscape plan to adequately screen the view of the proposed building from an adjacent residence. There were seven speakers in favor of the project and three speakers against. Those in support of the project cited the family oriented programs offered by the Club and the Club’s history of being a good neighbor as some of the community benefits. Those opposed expressed concerns over traffic, controls over the number of club members, future membership costs, and the proposed CMR: 365:08 Page 2 of 5 Council members only and available on the City’s http ://www. cityofp aloalto.org/civica/fileb ank!blobdload, asp ?BlobK)= 11937. website at The project was reviewed a-second time by the PTC on August 27, 2008 to make a recolnmendation to the City Council on the Conditional Use Pelunit (CUP). Typically, a CUP is subject to review and approval by the Director of Plamaing and Community Environment. A CUP application alone would not be brought before the PTC unless a hearing was requested. this case, staff had decided to bring the CUP before the PTC as it is associated with a Site and Design Review application. This would allow Council to conduct a single hearing on all of the project elements. The PTC recommended approval of the CUP by a vote of 5-1-0-1. The draft excerpt of the PTC minutes for the August 27th meeting are also attached for Council and available on the City’s website at http://www.cit¥ofpaloalto.org/k~aowzone/agendas/cotmcil.asp. RESOURCE IMPACT The proposed project will generate additional ammal General Fund revenues in the form of property taxes and Utility Users Tax. Total revenues from these sources are projected to equal $11,405. In addition, one-time impact fees of $146,153 are expected from the project. POLICY IMPLICATIONS Commercial Recreation is a conditionally permitted use within the OS zone district. As-a Commercial Recreational Use, the expansion of the club facilities requires a Conditional Use Permit (CUP). A CUP was included in the filing of the application for Site and Design review. The City Council does not typically act on the CUP as it is a Director-level decision. Because the application includes Site and Design review which requires Council action, and that fact that each element would need to be conditioned upon the approval of the other, staff has decided to have the City Council also act on both elements, the Site and Design Review and the CUP. ENVIRONMENTAL REVIEW ~ A Draft Initial Study, which reviewed the enviro~nental issues as required by the California Enviromr~ental Quality Act (CEQA), and Intent to Adopt a Mitigated Negative Declaration (MND) were posted and circulated for public review. The 20-day public review circulation period began March 28, 2008 and ended April 17, 2008. A letter from a neighbor’s attorney (Attachment H) objecting to the enviromnental review was submitted subsequent to the PTC hearing but in advance of the City Council’s scheduled Site and Design hearing on June 16, 2008. A revised analysis inco~]?orated changes to: 1)add more details about the existing uses on the site; 2) include geotechnical conditions as mitigation measures; 3) expand the scope of the grading discussion; and 4) update the traffic analysis and require transportation demand management (TDM) measures to be specified and implemented with the project, rather than subsequent to future traffic momtoring. Staff believes these changes adequately respond to the attorney’s letter and that other concerns were previously addressed and require no further modification to the IS/MND. The 20-day public review circulation period for the revised MND began August 19, 2008 and ended September 9, 2008. Mitigation measures have been identified that would be required as conditions of approval to ensure the project will not have a significant negative impact on the environment. These mitigations include the following: The requirement for night shades to prevent light leak f~om windows of the new building CMR: 365:08 Page 3 of 5 in the evemng; The requirement for the implementation of the recommendations of the Oeoteclmical Report to ensi~re the new construction will be structurally sound relative to the specific soil conditions of the site; The requirement for implementation of noise reduction measures to ensure the noise levels do not exceed allowable thresholds; The requirement for a Transportation Demand Management (TDM) program to reduce the number of vehicular trips such that the City’s thresholds (TIRE index) are not exceeded; and The requirement that measures be implemented to ensure that parking is contained on site. A copy of the environmental document is provided as Attachment G. PREPARED BY: m ICH Plarmer DEPARTMENT HEAD: CURTIS WILLIAI~IS Interim Director of Plmming and Community Environment CITY MANAGER APPROVAL: ATTACHMENTS Attachment A: Attachment B: Attactnnent C: Attachment D Attachment E: Attachment F: Attachment G: Attachment H: Attachment I: Attachment J: Attachment K: Attachment L: Attachment M: Draft Record of Land Use Action. Location Map PTC Staff Report April 2, 2008 (w/o attach) PTC Staff Report August 27, 2008 (w/o attach) ARB Staff Report, May 15, 2008 (w/o attach) ARB Staff Report, June 5, 2008 (w/o attach) Draft Initial Study and Mitigated Negative Declaration Letter from Stephen Velyvis, June 11, 2008 PTC Verbatim Minutes of April 2, 2008 PTC Verbatim Minutes of August 27, 2008 Applicant’s Submittals Correspondences from the public Proj ect Plans (Council packet only) CMR: 365:08 Page 4 of 5 COURTESY COPIES Cltris Wasney, Applicant Palo Alto Hills Golf and Country Clnb, Dirk Zander, Owner S al Giovanotto, Neighboring Property Owner Stephen E. Velyvis, Miller Starr Regalia CMR: 365:08 Attachment C City of Palo Alto Department of Planning and Community Environment California Environmental Quali& Act MI TI GA TED NE GA TI VE DE C L A ~ TI O N Date: Application Nos.: Address of Project: Assessor’s Parcel Number: Applicant: DESCRIPTION OF PROJECT September 18, 2008 06PLN-00000-00361 3000 Alexis Drive 182-35-035 Chris Wasney 455 Lambert Avenue Palo Alto, CA 94306 Owner:Palo Alto Hills Golf and Country Club 3000 Alexis Drive Palo Alto, CA 94304 Project Description and Location: A request for Site and Design Review and a Conditional Use Pe~rmit for a new 16,276 square foot, two story spa/fitness facility with a below grade basement area for 27 vehicle parking spaces, a 1,474 square foot addition for administrative offices, a 1,248 addition for various uses in the loading dock area, a 1,082 square foot addition to the members bar area, and a 162 square foot addition to the pro shop at 3000 Alexis Drive, as well as continued use of the existing facilities. Other improvements include the addition of a new turf tennis court, replacement of the driving range, a new port cochere, a new wading pool, a new roof screen, and other site improvements. Zone district: Open Space (OS) II. DETERMINATION In accordance with the City of Palo Alto’s procedures for compliance with the California Environmental Quality Act (CEQA), the City has conducted an Initial Study to determine whether the proposed project located at 3000 Alexis Dr. could have a significant effect on the environment. On the basis of that study, the City makes the following determination: The proposed project COULD NOT have a significant effect on the environment, and a NEGATIVE DECLARATION is hereby adopted. X Although the project, as proposed, could have a significant effect on the environment, there will not be a significant effect on the environment in this case because mitigation measures have been added to the project and, therefore, a MITIGATED NEGATIVE DECLARATION is hereby adopted. The attached initial study incorporates all relevant information regarding the potential environmental effects of the project and confirms the determination that an EIR is not required for the project. In addition, the following mitigation measures have been incorporated into the project: Mitigation Measure #1: Require automatic night shades to block any light leak from the windows of the fitness building in the evening. The automatic night shades shall be shown on the building permit plans. Mitigation Measure #2: The recommendations of the Geotectmical Investigation by Murray Engineers (December 2006) shall be required to be implemented as a condition of project approval and approved prior to building permit issuance. Mitigation Measure #3: The applicant shall select quieter HVAC equipment, employ sound attenuation techniques, or place it further from the property line such that the average 24 hour noise level will not increase by 5 decibels or more in a residential area. The location, design, and specification for such equipment shall be provided for approval by staff prior to issuance of a building permit. Mitigation Measure #4: The applicant shall develop a transportation demand management (TDM) program to reduce average daily weekday trips by at least 37 trips, and to reduce average daily weekend trips by at least 65 trips. The program shall be designed and submitted for review by the City’s transportation staff, shall be demonstrated to be~ enforceable, and must be approved prior to issuance of any grading or building permit. The program shall be proposed tothe satisfaction of the director, shall include proposed performance targets for parking and or trip reduction, and shall designate a single entity to implement the proposed measures. Monitoring reports shall be submitted to the director each year for a period of five years after building occupancy noting the effectiveness of the proposed measures as compared to the initial performance targets and suggestions for modifications if necessary to enhance parking and/or trip reductions. In no event shall social memberships increase above 175 members unless the TDM traffic targets are met to the satisfaction of the director. The TDM program may include but is not limited to the following measures: a) Provide incentives to Club members that will encourage them to combine their trips to the facility rather than make multiple trips (joint usage) or carpooling for employees and guests. An example of this could be the issuance of cards that provide for free golf cart rentals, free exercise classes etc. for x number of combined trips or carpool/vanpool trips. b) Decrease the size and!or frequency of exercise classes in the new fitness facility. c)Open the fitness facility on Mondays (when golf is normally closed) and close it on Wednesday, which is typically the busiest weekday at the club. b)Control be volume of us~ of the new private banquet rooms or other Club facilities as necessary to ensure that the traffic volume stays below the TIRE index. Mitigation Measure #5: The club shall employ measures to ensure that all of the parking demand generated by club activities shall be met on site such that no club users are parking on Alexis Drive or its side streets. These measures shall include but are not limited to mandatory valet parking for those events that may exceed the typical capacity of available parking at the club and the use of the golf course for overflow parking if needed. Proj ect Planner Date Director of Planning and Community Environment Date ENVIRONMENTAL CHECKLIST FORM City of Palo Alto Department of Planning and Community Environment PROJECT DESCRIPTION A request for Site and Design Review and a Conditional Use Permit for a new 16,276 square foot, two story spa/fitness facility with a below grade basement area for 27 vehicle parking spaces, a 1,474 square foot addition for administrative offices, a 1,248 addition for various uses in the loading dock area, a 1,082 square foot addition to the members bar area, and a 162 square foot addition to the pro shop at 3000 Alexis Drive, as well as continued use of the existing facilities. Other improvements include the-addition of a new turf tennis court, replacement of the driving range, a new port cochere, a new wading pool, a new roof screen, and other site improvements. Zone district: Open Space (OS) o o PROJECT TITLE 3000 Alexis Drive Palo Alto Hills Golf and Country Club Palo Alto, California LEAD AGENCY NAME AND ADDRESS City of Palo Alto Department of Planning and Community Environment 250 Hamilton Ave. 5th Floor Palo Alto, CA 94303 CONTACT PERSON AND PHONE NUMBER Russ Reich, Senior Planner City of Palo Alto (650) 617-3119 PROJECT SPONSOR’S NAME AND ADDRESS Chris Wasney 455 Lambert Avenue Palo Alto, CA 94306 APPLICATION NUMBER 06PLN-00000-00361 3000 Alexis Drive Page 1 Mitigated Negative Declaration 6.PROJECT LOCATION 3000 Alexis Drive, Palo Alto, CA 94304 Parcel Numbers: 182-35-035 The project is located in the Palo Alto Foothills west ofU. S. Highway 280 at the Palo Alto Hills Golf and Country Club as shown on Figure 1, Regional Map. The property is a 125 acre site in the Open Space (OS) zone district and is surrounded by single family residences to the south and to the east, and is bordered by the Arastradero Preserve to the north and northwest. The property is accessed by Alexis Drive, as shown on Figure 2, Vicinity Map 7.GENERAL PLAN DESIGNATION: 3000 Alexis Drive is designated as Open Space/Controlled Development in the Palo Alto 1998 - 2010 Comprehensive Plan. This land use designation applies to land that has -the characteristics of open space but allows some development. The adjacent residential development is primarily zoned Residential Estate (RE) with some properties in the OS zone district. The project is proposed at the south end of the existing country club building which is located at the south east side of the property just off of Alexis Drive. 8.ZONING The site is zoned Open Space (OS). The OS zone district is designed to permit the reasonable use of open space land while preserving its inherent open space characteristics to assure continued availability for the following: as agricultural land, recreation land, conservation or natural resource land; for containment of urban sprawl and the structuring of urban development; and for retention of land in its natural or near natural state, and to protect life and property in the community from the hazards of fire, flood and seismic activity.The Country Club is a conditionally permitted use within this zone district. 9.PROJECT DESCRIPTION Palo Alto Hills Golf and Country Club (PAHGCC) was established in 1958 providing opportunities for golf, tennis, swimming, and dinning. The club currently has 416 proprietary members (shareholders of the corporation) and 140 social members. Proprietary members have full access to all amenities of the club, while social members have limited golf privilege but otherwise have full access to all of the Club’s other facilities. The Club hosts up to 14 outside Monday golf tournaments per year. These events range in size from 80 players to 144 players and the club limits these to no more than 3 within a given month. The Club is closed on Mondays so there are no issues with other club members. The club hosts an average of 30 to 40 weddings per year ranging in size from 75 to 300 people. PAHGCC also has a number of in house member events such as Easter, Mothers Day, Fathers Day and an annual 4th of July BBQ. These events average between 150 to 500 people with Mothers Day and Easter being the largest. Those two events are a continuous buffet with four to five seatings averaging 125 people per seating. The club will occasionally host other events that are over 300 people with 360 being the maximum. The Club will typically host three swim meets per year. 3000 Alexis Drive Page 2 Mitigated Negative Declaration These meets are with other Clubs in the surrounding areas and average 150 to 250 people depending on the size of the swim team. All events including casual dinner on Wednesday, Friday and Sunday night-have valet parking with non-member events such as weddings, bhatmitzvahs and birthdays being mandatory valet. There are a large variety of events and activities tfiat take place at the club and the club limits these uses such that the club can accommodate them and provide adequate parking. Consistent with national trends over the last decade or so, the number of rounds of golf at the Club has decreased by 1 to 2% per year. Because of this trend, and the demand for a wider range of recreational opportunities for the whole family, the club has proposed the following improvements. The project proposes to demolish the one story buildings around the existing pool and to deepen the current pool while maintaining the footprint. The existing pool facility is old and needs updating. A wading pool and viewing mound will also be added. The viewing mound will enable parents a more comfortable vantage point to sit on a small grassy incline to view their children swimming. The deeper pool will allow the continued use of the diving board as it will now comply with current State law. The existing one story buildings would be replaced with a new two story Family Recreation Center. The new building would serve the uses that currently take place within the buildings to be demolished such as the teen room, changing areas and, the kids play area. The new building would also include a weight room, two fitness rooms, and massage treatment rooms. The spa facility is not a traditional spa in that it will only provide massage treatments and not the other services, such as facials and body treatments, typically associated with a spa. The basement level will provide 27 below grade parking spaces and a storage and laundry facility. The ground floor will have a large open reception area and the small day spa with four treatment rooms, an indoor/outdoor hot tub, locker room areas with steam rooms, a teen room, and a child watch area. The second floor would contain a workout room with’cardio and weight equipment and two exercise rooms for yoga and other specialized group classes. One grass tennis court would be added next to the existing two tennis courts just up the hill from the pool. The existing members’ lounge would be expanded northward for increased seating capacity, while moving the administrative offices under that expanded space and converting the existing office space to two small private dining rooms. These rooms would allow for smaller gatherings of typically 20 to 50 individuals. A small pro shop addition is also proposed to open up the space so it is less confined. The driving range would be improved with earth moved from the excavation of the fitness building garage. Some of this excavated earth will also be used to improve the slope of the ninth fairway. Additionally, the existing buildings targeted for demolition will be converted to landfill and kept on site. As such, no exportation of dirt or materials is planned. Other, more minor improvements would provide for a new porte cochere and screening of the roof equipment currently visible from west of the clubhouse. Many of the project components serve to improve those uses/facilities that already occur and exist at the club. Some project components such as the fitness center, the tennis court and the small banquet rooms add additional facilities to the site but the project is now required to cap the 3000 Alexis Drive Page 3 Mitigated Negative Declaration 10. 11. membership of the club. The two new banquet rooms are roughly projected to be utilized two to three times per month with the majority of the business being during the week for corporate business and would therefore not have an effect on increased traffic on weekends. It is projected that the family fitness center would be open Tuesday through Sunday beginning at 7:00am and closing by 9:00pm. The c~ub anticipates that 80% of the members utilizing the fitness facility will be dual use (lunch and workout, golf and workout etc). There may be three to six fitness class offerings per week ranging from pilates to spin with class sizes in the mid 20’s. The increased seating area in the bar would be able to accommodate the current membership which typically overflows into the dinning room for seating. This bar is popular after golf outings and tournaments and currently only has a capacity of 60 people. The expansion will help to better accommodate the existing usage. SURROUNDING LAND USES AND SETTING The project is proposed within a 125,000 acre Golf and Country Club property. The new building is proposed in a hollow adjacent to the existing club building to reduce its visual impact. The site is constrained by the existing pool and club building to the north, the tennis courts to the west, a steep upslope to the south and a steep down slope to the east. The country club property is surrounded by residences in the Residential Estate and Open Space zone districts to the south East and West with the Arastradero Open Space Preserve to the North. OTHER PUBLIC AGENCIES County of Santa Clara, Office of the County Clerk-Recorder ENVIRONMENTAL CHECKLIST AND DISCUSSION OF IMPACTS EVALUATION OF ENVIRONMENTAL IMPACTS 1)A brief explanation is required for all answers except "No Impact" answers that are adequately supported by the information sources a lead agency cites in the parentheses following each question. [A "No Impact" answer is adequately supported if the referenced information sources show that the impact simply does not apply to projects like the one involved (e. g. the project falls outside a fault rupture zone). A "No Impact" answer should be explained where it is based on project-specific factors as well as general standards (e. g. the project will not expose sensitive receptors to pollutants, based on a project-specific screening analysis).] 2)All answers must take account of the whole action involved, including off-site as well as on-site, cumulative as well as project-level, indirect as well as direct, and construction as well as operational impacts. Once the lead agency has determined that a particular physical impact may occur, then the checklist answers must indicate whether the impact is potentially significant, less than significant with mitigation, or less than significant. Potentially Significant Impact" is appropriate if there is 3000 Alexis Drive Page 4 Mitigated Negative Declaration substantial evidence that an effect may be significant. If there are one or more "Potentially Significant Impact" entries when the determination is made, an EIR is required. 4)"(Mitigated)Negative Declaration: Less Than Significant With Mitigation Incorporated" applies where the incorporation of mitigation measures has reduced an effect from "Potentially Significant hnpact" to a "Less than Significant Impact." The lead agency must describe the mitigation measures, and briefly explain how they reduce the effect to a less than significant level (mitigation measures from Section 17, "Earlier Analysis," may be cross-referenced). 5)Earlier analysis may be used where, pursuant to the tiering, program EIR, or other CEQA process, an effect has been adequately analyzed in an earlier EIR or.negative declaration. Section 15063 (C) (3) (D). In this case, a brief discussion should identify the following: a) Earlier Analysis Used. Identify and state where they are available for review. b) Impacts Adequately Addressed. Identify which effects from the above checklist were within the scope of and adequately analyzed in an earlier document pursuant to applicable legal standards, and state whether such effects were addressed by mitigation measures based on the earlier analysis. c) Mitigation Measures. For effects that are "Less than Significant with Mitigation Measures Incorporated," describe the mitigation measures which were incorporated or refined from the earlier document and the extent to which they address site-specific conditions for the project. 6)Lead agencies are encouraged to incorporate into the checklist references to information sources for potential impacts (e.g. general plans, zoning ordinances). Reference to a previously prepared or outside document should, where appropriate, include a reference to the page or pages where the statement is substantiated. 7)Supporting Information Sources: A source list should be attached, and other sources used or individuals contacted should be cited in the discussion. 8)The explanation of each issue should identify: a) the significance criteria or threshold, if any, used to evaluate each question; and b) the mitigation measure identified, if any, to reduce the impact to less than significance. DISCUSSION OF IMPACTS The following Environmental Checklist was used to identify environmental impacts, which could occur if the proposed project is implemented. The left-hand column in the checklist lists the source(s) for the answer to each question. The sources cited are identified at the end of the checklist. Discussions of the basis for each answer and a discussion of mitigation measures that are proposed to reduce potential significant impacts are included. AESTHETICS Issues and Supporting Information Resources Would the project: Substantially degrade the existing visual Sources Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact No Impact a) X 3000 Alexis Drive Page 5 Mitigated Negative Declaration b) c) Issues and Supporting Information Resources Would the project: character or quality of the site and-its surroundings? Have a substantial adverse effect on a public view or view corridor? Substantially damage scenic resources, including, but not limited to, trees, rock outcroppings, and historic buildings within a state scenic highway? d) Violate existing Comprehensive Plan policies regarding visual resources? e) , Create a new source of substantial light or glare which would adversely affect day or nighttime views in the area? Substantially shadow public open space (other than public streets and adjacent sidewalks) between 9:00 a,m. and 3:00 p.m. from September 21 to March 217 Sources 1,2,7 1,2 Map L4 1,2, Map L4 1,2,7 Map L4 Potentially Significant Potentially Significant X X X Issues Unless Mitigation Incorporated Less Than No Significant Impact Impact x DISCUSSION: The project will not substantially degrade the exiting visual character of the site. The site is currently developed as a golf and country club with single family residential development around it. There are no natural open space areas that would be disturbed by the project. The new spa/fitness building would be two stories tall to reduce the building footprint and is proposed within a hollow, reducing the visual impact to adjacent properties. The building would be visible to a few off site neighbors directly adjacent to the property. While the building would be visible, it would not block significant views and it would be designed to meet the City’s standards for architectural review. This visibility is not considered to be a significant impact. Ample landscaping is also proposed to buffer the new building from adjacent properties, but is not a required mitigation. The project could create a new source of substantial light or glare that may adversely affect nighttime views in that proposed spa fitness building would have new windows in close proximity to two existing residences. The proposed exterior lighting for the new building is intended for way finding only and will not have offsite impacts. The following mitigation measure would reduce the impact of the light from the windows to a less than significant level. The degradation of the visual character of the surroundings is addressed in section I. Land Use and Planning of this Initial Study. Mitigation Measures: Mitigation Measure #1: Require automatic night shades to block any light leak from the windows of the fitness building in the evening. The automatic night shades shall be shown on the building permit plans. 3000 Alexis Drive Page 6 Mitigated Negative Declaration Significance after Mitigation: Less than significant a) B. AGRICULTURAL RESOURCES In determining whether impacts to agricultural resources are significant environmental effects, lead agencies may refer to the California Agricultural Land Evaluation and Site Assessment Model (1997) prepared by the California Dept. of Conservation as an optional model to use in assessing impacts on agriculture and farmland. Issues and Supporting Information Resources Would the project: Sources Convert Prime Farmland, Unique Farmland, or Farmland of Statewide Importance (Farmland), as shown on the maps prepared pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non-agricultural use? Conflict with existing zoning for agricultural use, or a Williamson Act contract? Involve other changes in the existing environment which, due to their location or nature, could result in conversion of Farmland, to non-agricultural use? 1,12 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact X b)1, 2,X MapL-9, c) 1 X No Impact DISCUSSION: The site is not located in a "Prime Farmland", "Unique F~armland", or "Farmland of Statewide Importance" area, as shown on the maps prepared for the Farmland Mapping and Monitoring Program of the California Resources Agency. The property is covered by a Williamson Act Contract but the contract allows recreational uses and the project does not conflict with the contract. Mitigation Measures: None a) C.AIR QUALITY Issues and Supporting Information Resources Would the project: Conflict with or obstruct with implementation of the applicable air quality plan (1982 Bay Area Air Quality Plan & 2000 Clean Air Plan)? Violate any air quality standard or contribute substantially to an existing or projected air 1,7 Potentially Significant Unless Sources Potentially Significant Issues Mitigation Incorporated b) 1,7 3000 Alexis Drive Page 7 Mitigated Negative Declaration Less Than No Significant Impact Impact X X Issues and Supporting Information Resources c) e) g) Sources Would the project: quality violation indicated by the following: i. Direct and!or indirect operational emissions that exceed the Bay Area Air Quality Management District (BAAQMD) criteria air pollutants of 80 pounds per day and/or 15 tons per year for nitrogen oxides (NO), reactive organic gases (ROG), and fine particulate matter of less than 10 microns in diameter (PM10); ii.Contribute to carbon monoxide (CO) concentrations exceeding the State Ambient Air Quality Standard of nine parts per million (ppm) averaged over eight hours or 20 ppm for one hour( as demonstrated by CALINE4 modeling, which would be performed when a) project CO emissions exceed 550 pounds per day or 100 tons per year; or b) project traffic would impact intersections or roadway links operating at Level of Service (LOS) D, E or F or would cause LOS to decline to D, E or F; or c) project would increase traffic volumes on nearby roadways by 10% or more)? Result in a cumulatively considerable net increase of any criteria po!lutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard (including releasing emissions which exceed quantitative thresholds for ozone precursors)? Expose sensitive receptors to substantial levels of toxic air contaminants? i. Probability of contracting cancer for the Maximally Exposed Individual (MEI) exceeds 10 in one million ii.Ground-level concentrations of non- carcinogenic TACs would result in a hazard index greater than one (1) for the MEI Create objectionable odors affecting a substantial number of people? Not implement all applicable construction emission control measures recommended in the Bay Area Air Quality Management District CEQA Guidelines? 7 1,7,14 1,7 1,7 1,7 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact X X NO Impact X X X X X DISCUSSION: The City of Palo Alto uses the Bay Area Air Quality Management District’s (BAAQMD) thresholds of significance for air quality impacts, as follows: 3000 Alexis Drive Page 8 Mitigated Negative Declaration Construction Impacts: The project, would involve demolition, excavating, grading, and paving activities which could cause localized dust related impacts resulting in increases in particulate matter (PM10). Dust related impac.ts are considered potentially significant but would be minimized with the application of standard dust control measures. Construction equipment would also emit NOx and ROC. However, in order for emissions from construction equipment to be considered significant, the project must involve the extensive use of construction equipment over a long period of time. Based on the size of the proposed project, emissions of NOx and ROC are anticipated to be less than significant. Long Term Impacts: Long-term project emissions primarily stem from motor vehicles associated with the proposed project. With the proposed mitigations for traffic, the project is not expected to result in a significant number of new vehicle trips. Therefore, long-term air-quality impacts are expected to be less than significant. The project would be subject to the following City’s standard conditions of approval: The following controls shall be implemented for the duration of project construction to minimize dust related construction impacts: ¯All active construction areas shall be watered at least twice daily. ¯All trucks hauling soil, sand, and loose materials shall be covered or shall retain at least tv~o feet of freeboard. ¯All paved access roads, parking areas, and staging areas at the construction site shall be swept and watered daily. ¯Submit a plan for the recovery/recycling of demolition waste and debris before the issuance of a demolition permit. Sweep streets daily if visible soil material is carried onto adjacent public streets. Mitigation Measures: See Section 0 Transportation and Traffic for traffic mitigations. a) b) D. BIOLOGICAL RESOURCES Issues and Supporting Information Resources Would the project: Have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Game or U.S. Fish and Wildlife Service? Have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, regulations, including federally protected wetlands as defined by Section 404 Sources 1,2 MapN- 1 1,2, 7 MapN- 1 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than No Significant Impact Impact x x 3000 Alexis Drive Page 9 Mitigated Negative Dectaration c) Issues and Supporting Information Resources Would the project: of the Clean Water Act (including, but-not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, ot other means? Interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites? d) Conflict with any localpolicies or ordinances protecting biological resources, such as a tree preservation policy or as defined by the City of Palo Alto’s Tree Preservation Ordinance (Municipal Code Section 8.10)? e) Conflict with any applicable Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan? Sources 1,2, 7 MapN-1 1, ,3, 7, 8, 10 1,2,7 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact X No Impact X X DISCUSSION: There are 223 trees identified in the vicinity of the project. These are landscape trees around the building, in the parking lot, and in proximity to various project elements. The trees in these areas are not natural open space trees. Implementation of the project elements would result in the removal of’ 39 of these trees. Many of the trees would need to be removed due to their adjacency to the existing building to be expanded or to provide the trench drain to improve stormwater capture. The project includes 67 new trees to replace the trees being removed and to improve the overall landscape in the vicinity of the project. Standard conditions of approval will require full implementation of the tree preservation report to protect remaining specimen and designated trees. In the immediate vicinity of the project, there are no riparian or tree habitats for the candidate, sensitive, or special status species in the area. No endangered, threatened, or rare animals, insects and plant species have been identified at this site. Tree preservation guidelines will be incorporated into the conditions of approval such that the project will not have a significant impact on the code protected trees and the project will have no impact on any other biological resources. The proposed project will have no impact on biological resources and will require no mitigation. Per the standard conditions of architectural review approval, the project would result in a less than significant impact to biological resources. Mitigation Measures: None E.CULTURAL RESOURCES 3000 Alexis Drive Page 10 Mitigated Negative Declaration a) Issues and Supporting Information Resources Would the project: Directly or indirectly destroy a local cultural resource that is recognized by City Council resolution? b)Cause a substantial adverse change in the significance of an archaeological resource pursuant to 15064.5? c) Directly or indirectly destroy a unique paleontological resource or site or unique geologic feature? d)Disturb any human remains, including those interred outside of formal cemeteries? Sources 1,7 1,2, 7 MapL-8 1, 2, 7 MapL-8 1,2,7 MapL-8 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact X No Impact X X X e)Adversely affect a historic resource listed or X eligible for listing on the National and/or 1, 2, 7California Register, or listed on the City’s MapL-7Historic Inventory? f)Eliminate important examples of major periods 1, 7 X of California history or prehistory? DISCUSSION: The Comprehensive Plan indicates that the site is in a low sensitivity archaeological resource zone. Although existing and historic development has altered the native landscape, the potential exists that now-buried Native American sites could be uncovered in future planning area construction. If archaeological materials are discovered the applicant would be required to perform additional testing and produce an Archaeological Monitoring and Data recovery )lan (AMDRP) to be approved prior to the start of construction. This would be included as a standard condition of approval. Mitigation Measures: None a) F. GEOLOGY, SOILS AND SEISMICITY Issues and Supporting Information Resources Would the project: Expose people or structures to potential substantial adverse effects, including the risk of loss, injury, or death involving: i) Rupture of a known earthquake fault, as delineated on the most recent Sources See below Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than No Significant Impact Impact X 3000 Alexis Drive Page 11 Mitigated Negative Declaration ii) Alquist-Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault? Refer to Division of Mines and Geology Special Publication 42. Strong seismic ground shaking? iii)Seismic-related ground failure, including liquefaction? 1,2,4,5, 16 Maps N-5, N- 10 2,5, 16 MapN-10 2,5,16 MapN-5 X iv) Landslides?2,5, 16 X MapN-5 b) 1, 7, 16 X c)1, 7, 16 X d)X Result in substantial soil erosion or the loss of topsoil? Result in substantial siltation? Be located on a geologic unit or soil that is unstable, or that would become unstable as a result of the project, and potentially result in on- or off-site landslide, lateral spreading, subsidence, liquefaction or collapse? Be located on expansive soil, as defined in Table 18-1-B of the Uniform Building Code (1994), creating substantial risks to life or property? Have soils incapable of adequately supporting the use of septic tanks or alternative waste water disposal systems where sewers are not available for the disposal of waste water? Expose people or property to major geologic hazards that cannot be mitigated through the use of standard engineering design and seismic safety techniques? e) 2, 5, 16 MapN-5 2, 5, 16 MapN-5 1, 7, 16 X g)X X X DISCUSSION: The entire state of California is in a seismically active area. According to the Comprehensive Plan the project site is not in an area that is subject to very strong ground shaking in the event of an earthquake or in an area subject to expansive soils, or liquefaction. Development of the proposed project would be required to conform to all requirements in the Building Code, which includes provisions to ensure that the design and construction of all buildings includes provisions to resist damage from earthquakes to the extent feasible and acceptable. The potential onsite exposure to geological hazards will therefore be less than significant. No mitigation is required. As indicated in the "Geotechnical Investigation" produced by Murray Engineers Inc. "from a geotechnical perspective, the site is suitable for the proposed improvements, provided the recommendations contained in this report are implemented in the design and construction."(p.8) The 3000 Alexis Drive Page 12 Mitigated Negative Declaration report indicates that the "primary geotechnical constraints to the proposed improvelnents are moderately steep slopes located down slope of. the proposed third tennis court, the potential for consolidation and creep of existing fill and colluvial soil, the potential for expansion and contraction of the clayey near- surface soils, and the potential for strong ground shaking at the site during a moderate to large earthquake on any of the nearby active or potentially active faults."(p. 8). The report recommends remedies to these constraints in great detail, including, but not limited to, a "mat slab foundation" for the proposed fitness center, spread footings for the elubhouse addition and retaining walls, and a variety of other recommendations such as use of vapor barriers and damp-proofing, over excavation to expose bedrock, keys and benches for slopes and limitations on grades for cut slopes. The report further recommends that the geotechnical engineer be-retained to plan check the design drawings, and perform construction observation to ensure that its recommendations for these remedial design features and construction techniques be adequately implemented. The Geotechnical engineer has also indicated in subsequent correspondence that the geotechnical conditions and the proposed remediations are in no way extraordinary and are in fact typical of hillside construction projects in this area. Incorporation of these measures, as outlined in mitigation measure #2 below would reduce the potential impacts to a less than significant level. The project does include earthwork to excavate the below grade parking garage and the new turf tennis court addition but the changes are not expected to be substantial or to be a significant change "to the existing site topography. Standard conditions of approval require submittal of a final grading and drainage plan for the project for approval by the Public Works Department prior to the issuance of a building permit. The application of standard grading, drainage, and erosion control measures as a part of the approved grading and drainage plan is expected to avoid any grading-related impacts. Cut and fill calculations are included on sheet C2 of the project drawings and are predominately cut, rather than fill. Spoils from the excavations will be utilized on site for re-grading of the 9th hole and the driving range. Grading and earthwork will be required to conform to the recommendations of the Geotechnical Report, which will be incorporated into the constrdction documents. This will be a condition of building permit approval. Mitigation Measures: Mitigation Measure #2 The recommendations of the Geotechnical Investigation by Murray Engineers (December 2006) shall be required to be implemented as a condition of project approval and approved prior to building permit issuance. The recommendations are listed below. RECOMMENDATIONS We recommend that the basement portions of the proposed fitness center, including the basement retaining walls, be supported on a mat slab foundation bearing in the underlying greenstone bedrock. The at-grade portions of the fitness center, the proposed addition to the clubhouse, and any proposed site retaining walls may be supported on spread footings bearing in the underlying bedrock. Detailed foundation, grading, and drainage recommendations and geotechnical design criteria are presented below. 3000 Alexis Drive Page 13 Mitigated Negative Declaration UBC (1997) EARTHQUAKE DESIGN PARAMETERS Based on the Maps-of Known ActiVe Fault Near-Source Zones in California and Adjacent Portions of Nevada (California Department of Conservation, Division of Mines and Geology, 1998), the site is approximately 6.7 kilometers from the San Andreas Fault (Type A). In addition, although the surface trace of the Monte Vista Fault (Type B) is located approximately 0.8 kilometers to the northeast of the site, because the Monte Vista Fault dips to the west, the site is considered to be 0 kilometers from the fault (see Figure A-4, UBC Active Fault Near-Source Zones). In accordance with guidelines presented in the 1997 Uniform Building Code (UBC), the following seismic design parameters will apply: Seismic Zone Factor (Z) = 0.4 (Zone 4) Soil Profile Type = Sc, Very Dense Soil and Soft Rock (Table 16-J) Near Source Factors: Na = 1.4 (Table 16-S) Nv = 1.8 (Table 16-T) FOUNDATIONS Spread Footings The at-grade portions of the fitness center, the addition along the front of the clubhouse, the porte cochbre, and site retaining walls may be supported on spread footing foundations gaining support in the underlying greenstone bedrock. Continuous spread footings should have a minimum width of 15 inches and isolated footings should be a minimum of 18 inches square. All footings should extend through any existing or proposed fill and any surficial soil and should be emb~edded at least 12 inches into the underlying bedrock. Where footings fo~ the at-grade portions of the fitness center will be located over backfill for the basement retaining wall, we recommend that the footings be designed to span the proposed backfill area. Spread footings supported in the bedrock may be designed using an allowable bearing pressure of 3,000 pounds per square foot for dead plus live loads, with a one-third increase allowed for total loads including wind and seismic forces. The weight of the footings may be neglected for design purposes. Lateral loads may be resisted by friction between the footings and the supporting subgrade using a friction coefficient of 0.30 for concrete formed on bedrock. In addition to the preceding frictional resistance, lateral resistance may be provided by passive pressures acting against foundations poured neat in the footing excavations into the bedrock using an equivalent fluid pressure of 350 pounds per cubic foot. All footings located adjacent to utility lines or other footings should bear below a 1:1 plane extended upward from the bottom edge of the utility trench or footing. At a minimum, all continuous footings should be reinforced with two No. 4 reinforcing bars, top and bottom, to provide structural continuity and to permit spanning of local irregularities. Reinforcing steel requirements should be verified by the project structural engineer. 3000 Alexis Drive Page 14 Mitigated Negative Declaration The footing excavations should be substantially free of loose soil prior to placing reinforcing steel and concrete. Our representative should observe the footing excavations prior to placing concrete forms and reinforcing steel to see that they are founded in competent bearing materials and have been properly prepared. Any 10oge soil in the foSting excavations resulting from the placement of forms and reinforcing steel should be removed prior to placing concrete. Basement Mat Foundation We recommend that the fitness center basement be supported on a reinforced concrete mat foundation with a thickness of at least 10 inches bearing on the underlying bedrock. As currently proposed, we anticipate that the entire basement will be cut down into the bedrock. The mat may be designed for allowable bearing pressures of 3,000 pounds per square foot for combined dead plus live loads, with a one-third increase allowed for transient loads, including wind or seismic forces. If the structural engineer will utilize a modulus of subgrade reaction in the mat design, we estimate that the modulus of vertical subgrade reaction for a 1-foot square plate (based on Terzaghi’s method - Figure 6 of the Navy Design Manual, Chapter 5, NAVFAC DM 7.1) for the bedrock below a depth of approximately 4 feet below existing site grades to be approximately 240 tons per cubic foot (tons per square foot per foot), or approximately 275 pounds per cubic inch (pounds per square inch per inch). We caution that the structural engineer should consider the dimensions of the loaded area and the various colurm~ and line loading/spacing in establishing the modulus of subgrade reaction in accordance with the guidance presented in the Navy design manual or in Section 9.6 of Foundation Analysis and Design (Bowles, 1996). Lateral loads may be resisted by friction between the mat and the supporting subgrade using a friction coefficient of 0.30. In addition, lateral resistance may be provided by passive pressures acting against the lower two-thirds of the basement retaining walls using an eqgivalent fluid pressure of 350 pounds per cubic foot. The mat foundation should be reinforced with a grid of steel reinforcing bars. The project structural engineer should determine mat reinforcing based on anticipated loading and the design criteria presented in this report. We recommend that the basement mat foundation be provided with a subdrain system integrally designed with the basement retaining wall drainage (see below). The subgrade soil beneath the mat should be sloped at an inclination of not less than 1.5 percent to a perimeter trench where the retaining wall drainage pipe will be located. The mat slab should be underlain by not less than 6 inches of ½- to ¾-inch clean crushed rock underlain by filter fabric or prefabricated drainage panels (see Figure A-5, Alternative Basement Subdrain Systems). To limit slab dampness from soil moisture vapors, a vapor barrier consisting of a durable, impermeable membrane, such as 10- to 15-rail Stego Wrap manufactured by Stego Industries, should be placed above the crushed rock or drainage panels. Please refer to the Vapor Barrier Considerations section below for additional information. Please note that these recommendations do not comprise a specification for "waterproofing." For greater protection against concrete dampness, we recommend that a waterproofing consultant be retained. 3000 Alexis Drive Page 15 Mitigated Negative Declaration Our representative should observe the basement excavation prior to placement of the mat slab subdrainage system to evaluate the condition of the subgrade material and to make sure that the conditions are consistent with those anticipated from our borings. It may be necessary to compact the subgrade surface in the basement excavation, if loose or disturbed areas are created or encountered during construction. Thirty year differential movement of the foundation due to static loads is not expected to exceed approximately ½-inch across the mat-supported basement. BASEMENT & SITE RETAINING WALLS Basement and site retaining walls should be supported on foundations designed in accordance with the recommendations provided above. Damp proofing or waterproofing of walls should be included in areas where wall moisture would be undesirable, such as at living spaces or where wall finishes could be impacted by concrete moisture. The project architect or a waterproofing consultant should provide detailed recommendations for damp proofing or waterproofing, as necessary. Lateral Earth Pressures Basement and site retaining walls should be designed to resist lateral earth pressure from the adjoining natural soils, backfill, and any anticipated surcharge loads. Assuming that the backfill behind the wall will be level (e.g., not sloping upward) and that adequate drainage will be incorporated as recommended below, we recommend that unrestrained retaining walls be designed to resist an equivalent fluid pressure of 45 pounds per cubic foot (pcf) plus one-third of any anticipated surcharge loads. Walls restrained from movement at the top should be designed to resist an equivalent fluid pressure of 45 pcfplus a uniform pressure of 8H pounds per square foot (psf), where H is the height in feet of the retained soil. Restrained walls should also be designed to resist an additional uniform pressure equal to one-half of any surcharge loads applied at the surface. Where backfill behind the wall will be sloping upward from the wall, we recommend that the equivalent fluid pressures given above be increased by 3 pcf for each 4-degree increase in slope inclination. Retaining Wall Drainage We recommend that retaining walls include a subsurface drainage system to mitigate buildup of water pressure from surface water infiltration and/or other possible sources of water. Three alternative retaining wall drainage systems are described below. As noted above, the basement wall drainage system should be integral with the basement mat foundation drainage system. Schematic details for integrating the basement retaining wall and mat foundation drainage system alternatives are presented on Figure A-5. The retaining wall drainage system should consist of a minimum 4-inch diameter, perforated PVC pipe (Schedule 40, SDR 35 or similar) with the perforations facing down, resting on an approximately 2- to 3-inch thick layer of drainrock. The pipe and underlying drainrock should be located at the base of site walls or within a minimum 8-inch deep by 12-inch wide trench excavated around the perimeter of the 3000 Alexis Drive Page 16 Mitigated Negative Declaration basement mat slab. The bottom of the trench should be provided with a minimum 1 percent downward slope toward the outfall. The pipe should be back filled with drainrock consisting either of Caltrans Class 2 permeable material or ½- to ~/4-inch clean crushed rock. If crushed rock is used, it should be separated from the native soil or soil backfill by a geosynthetic filter fabric, such as TC Mirafi 140N or equivalent. The perforated pipe itself should not be wrapped with filter fabric because, in our opinion, this practice increases the likelihood of clogging of the small perforations in the pipe. The free-draining backfill should extend vertically to within 12 to 18 inches of the finished grade and laterally at least 12 inches from the wall. The upper 12 to 18 inches of backfill should consist of compacted on-site clayey soil to mitigate surface water infiltration into the subdrain system. The. subdrain pipes should be provided with a minimum 1 percent slope and should be provided with cleanout risers at their up-gradient ends and at most sharp directional changes to facilitate maintenance. Perforated subdrain pipes should be connected to solid (non-perforated) discharge pipes to convey collected water to discharge onto an energy dissipater at an appropriate downslope location. Any proposed roof downspouts and any proposed surface area drains should be kept completely separate from the retaining wall drainage systems. Miradrain, Enkadrain or other geosynthetic drainage composite approved by this office may be used in lieu of the upper drain rock section for wall drainage. If used, the drainage panel should extend from a depth of 24-inches below finish grade (no higher) to the drainpipe at the base of the wall. If drainage composite is used, the lower 2 feet of the wall backfill should consist of ½- to 3/4-inch clean crushed rock wrapped in filter fabric. Backfill We recommend that unrestrained basement walls be backfilled, prior to construction of the first floor diaphragm. Backfill placed behind the walls should be compacted in accordance with the specifications outlined in the Compaction section of this report using light-weight compaction equipment. SLABS-ON-GRADE As currently proposed, concrete slabs-on-grade will be used for the at-grade floors of the fitness center and the front clubhouse addition. In addition, we anticipate that slabs-on-grade may be used for exterior patios and walkways. We recommend that interior slabs-on-grade be underlain by at least 18 inches of select granular fill, such as Class 2 aggregate baserock. Exterior slabs-on-grade should be underlain by at least 12 inches of select granular fill. Interior slabs for the fitness center adjacent to the basement walls should be designed to span any proposed basement retaining wall backfill. Prior to placement of the select granular fill, the subgrade soil should be scarified to depth of approximately 6 inches, moisture conditioned, and compacted in accordance with the specifications outlined in the Compaction section of this report. Select granular fill should be compacted in accordance with the specifications outlined in the Compaction section of this report. Where slab surface moisture would be a significant concern, such as for interior slabs, we recommend that slabs be underlain by at least 4 inches of ½- to 3,/4-inch crushed rock to serve as a capillary break 3000 Alexis Drive Page 17 Mitigated Negative Declaration between the subgrade soil and the slab. The capillary break may be considered the equivalent thickness as the upper 4 inches of select granular fill. In order to minimize vapor transmission, the crushed rock should be overlain bya vapor barrier consisting of a highly durable membrane not less than 10 mils thick (such as Stego Wrap ,Vapor Barrier by Stego Industries, LLC or equivalent). Please also refer to the Vapor Barrier Considerations ~ection below for additional information. Please note that these recommendations do not comprise a specification for "waterproofing." For greater protection against concrete dampness, we recommend that a waterproofing consultant be retained. In general, we recommend that exterior slabs-on-grade be structurally isolated from adjacent structures, including basement retaining walls, site retaining walls, and the swimming pool. Joints between the pool patio slabs and the pool coping should be filled with a flexible sealant. In addition, exterior slabs adjacent to landscaping areas should be provided with a moisture cutoff installed to a depth of at least 4 inches lower than the bottom of the underlying base material at the edge of the slab to mitigate infiltration of excessive landscaping water below the slab. In general, slabs-on-grade should be provided with control joints at spacing of not more than about 10 feet. The project structural engineer should provide slab reinforcing based on anticipated use and loading. Vapor Barrier Considerations Based on our understanding, two opposing schools of thought currently prevail concerning protection of the vapor barrier during construction. Some believe that 2 inches of sand should be placed above the vapor barrier to protect it from damage during construction and also to provide a small reservoir of moisture (when slightly wetted just prior to concrete placement) to benefit the concrete curing process. Still others believe that protection of the vapor barrier and/or curing of concrete are not as critical in the design consideration when compared to the possibility of entrapment of moisture in the sand above the vapor barrier and below the slab. The presence of moisture in th9 sand could lead to postTconstruction absorption of the trapped moisture through the slab and result in mold or mildew forming at the upper surface of the slab, loss of adhesion of floor mastics used for tile, etc., and warping of wood finishes placed on the slab. We understand that recent trends are to use a highly durable membrane (at least 15 mils thick) without the protective sand covering for interior slabs surfaced with floor coverings including, but not limited to, carpet, wood, or glued tiles and linoleum. However, it is also noted that several special considerations are required to reduce the potential for concrete edge curling if sand will not be used, including slightly higher placement of reinforcement steel and a water-cement ratio not exceeding 0.5 (Holland and Walker, 1998). We recommend that you consult with other members of your design team, such as your structural engineer, architect, and waterproofing consultant for further guidance on this matter. SWIMMING POOL AND WADING POOL As currently proposed, the deep end of the existing swimming pool will be deepened by approximately 3 to 4 feet. Based on our subsurface investigation, we anticipate that the entire base of the deep end of the swimming pool will bear in the greenst0ne bedrock. We also anticipate that the wading pool will be excavated down into the bedrock; however, depending on the depth of the wading pool, some minor over-excavation may be required to achieve bearing on the bedrock. If over-excavation is required, the 3000 Alexis Drive Page 18 Mitigated Negative Declaration base of the wading pool may be thickened or the excavation may be backfilled with select granular fill, such as Class 2 aggregate baserock. The sidewalls of th.e pools should be designed to resist a lateral earth equivalent fluid pressure of 70 pounds per cubic foot. In addition, pool walls should also be designed to resist an additional uniform pressure equivalent to one-half of any surcharge loads applied at the surface. Both the deep end of the swimming pool and the wading pool should be provided with pressure relief valve(s) placed in the bottom of the pool to limit potential damage from hydrostatic (buoyant) pressure, a condition that could result if the pools were empty and the water level outside of the pools were temporarily high. Four inches of clean ½- to ¾-inch crushed rock should be placed beneath the pool and partially up the sides, to allow water to flow to the pressure relief valve(s). Filter fabric, such as MiraIi 140N, should be placed on the pool subgrade prior to placement of the crushed rock. TENNIS COURT We recommend that the proposed tennis court be supported on a pad of select granular fill supported on the underlying greenstone bedrock. We anticipate that the excavation for the proposed tennis court will expose greenstone bedrock across most of the court surface. However, minor over-excavation mas~ be required along the north side of the court to achieve bearing on the greenstone. We recommend that the tennis court be underlain by at least 6 inches of Class 2 aggregate baserock compacted in accordance with the Compaction section of this report. Prior to placement of the select granular fill, the subgrade soil should be scarified to depth of approximately 6 inches, moisture conditioned, and compacted in accordance with the specifications outlined in the Compaction section of this report. ASPHALTIC CONCRETE PAVEMENTS The pavement subgrade conditions at the site vary slightly acros~ the site. For our pavement design purposes we have used an R-value of 20, based on the results of a single R-value test on a bulk sample of the surficial soil near the existing loading dock area. Following Procedure 608 of Caltrans Highway Design Manual we have developed the pavement sections presented in Table 1. The traffic indices used in our pavement design are considered reasonable values for this development and are based upon engineering judgment rather than a detailed traffic study. Asphaltic concrete and aggregate base should conform to and be placed in accordance with the requirements of the California Department of Transportation, Standard Specifications, latest edition, except that the compaction standard should be ASTM D 1557. Subgrade soils and aggregate base should be compacted in accordance with the Compaction section of this report. Table 1. Asphaltic Concrete Pavement Sections Subgrade Design R-Value = 20 Design Asphaltic Aggregate* Location Traffic Concrete Baserock Index Total Thickness (Inches)(Inches)(Inches) Automobile 3.5 2.5 4.5 7.0 3000 Alexis Drive Page 19 Mitigated Negative Declaration Truck Access & Parking 4.5 2.5 7.0 9.5 5.0 2.5 8.5 11.0 5.5 3.0 9.0 11.0 6.0 3.0 10.5 13.5 6.5 3.0 12.5 15.5 *Caltrans Class II Aggregate Base (minimum R-value of 78) EARTHWORK A significant amount of earthwork is anticipated as part of the proposed project, including excavations for the fitness center basement, the tennis court, the swimming pool and the wading pool, and the placement of engineered fill behind retaining walls and beneath slabs-on-grade. Significant quantities of soil will be generated from the construction excavations. This material may be disposed of off site or placed as engineered fill on the site. If placed as fill on the site, we should review the preliminary spoil disposal plan to evaluate the proposed fill area and whether supplemental grading recommendations may be required. Any proposed earthwork should be performed in accordance with the following recommendations. Clearing & Site Preparation Initially, the proposed improvement areas should be cleared of obstructions, including the existing structures, flatwork, and trees not designated to remain. Holes or depressions resulting from the removal of underground obstructions below proposed subgrade levels should be backfilled with engineered fill placed and compacted in accordance with the recommendations provided below. After clearing, the proposed improvement areas should be stripped to a depth of approximately. 2 to 3 inches .to remove surface vegetation and organic-laden topsoil. The stripped material should not be used as engineered fill; however, it may be stockpiled and used for landscaping purposes. Material for Fill All on-site soils below the stripped layer having an organic content of less than 3 percent organic material by volume (ASTM D 2974) should be suitable for use as engineered fill. In general, fill material should not contain rocks larger than 6 inches in greatest dimension and should contain no more than 15 percent larger than 2.5 inches. Imported fill should be predominately granular or should have a plasticity index of less than 15 percent. Any proposed fill for import should be approved by Murray Engineers, Inc. prior to importing to the site. Our approval process may require index testing to establish the expansive potential of the soil; therefore, it is important that we receive samples of any proposed import material at least 3 days prior to importing. Select granular fill material should consist of a predominantly granular soil with less than 5 percent fines (material passing a No. 200 sieve) and 100 percent of particle sizes smaller than 1-inch. Class 2 aggregate baserock and Class 2 permeable material should meet the specifications outlined in the Caltrans Standard Specifications, latest edition., 3000 Alexis Drive Page 20 Mitigated Negative Declaration Construction of Keyways and Benches Fill placed on slopes that are steeper than 5:1 should be keyed and benched into competent soil or bedrock, as evaluated in the field by this office during construction, to provide a firm, stable base for support of the fill. Fill placed on slopes that are less steep than 5:1 (horizontal to vertical) should be benched into competent soil or bedrock. The keyway, located at the toe of the fill, should be at least 10 feet wide or ½ times the height of the proposed fill slope, whichever is greater. The keyway should be excavated a minimum of 2 feet into the bedrock, as measured on the downslope side of the keyway. Keyways and benches should be provided with a downward slope of approximately 2 percent in the uphill direction to provide resistance to lateral movement and to facilitate proper subdrainage, as necessary. Subdrainage In general, fills exceeding 5 feet in depth should be provided with subdrainage. Subdrains should consist of a 4-inch diameter, rigid, heavy-duty, perforated pipe (Schedule 40, SDR 35 or similar), approved by the soil engineer, embedded in Class 2 permeable material or ½- to ¾-inch clean crusfied rock placed along the upslope side of keyways and benches for the full height of the keyway or bench cut. If crushed rock is used, it should be separated from the fill and the native material by a geotextile filter fabric. The perforated subdrain pipe should be placed with the perforations down on a 2- to 3-inch bed of drainrock. Subdrain pipes should be provided with clean-out risers at their up-gradient ends and at all sharp changes in direction. Subdrain systems should be provided with a minimum 1 percent gradient and should discharge onto an energy dissipater at an appropriate downhill location. Utility Trenches All underground utility trenches associated with the proposed improvements should be backfilled with engineered fill compacted in accordance with the recommendations provided above. Imported sand or clean gravel may be used as bedding and shading around the pipe(s), provided that the sand or gravel is capped with a minimum 12-inch thick layer of native soil. To mitigate the potential for water to flow through the sand or gravel layer, which could result in piping erosion and ground subsidence, a plug of relatively impermeable native soil or lean concrete should be placed intermittently along the length of the trench to act as a barrier. The spacing of the impermeable plugs should be evaluated by this office in the field during construction. Final Slopes Any proposed cut slopes in the surficial soil and any existing or proposed fill slopes should have gradients no steeper than 2:1 (horizontal to vertical). Cut slopes in the greenstone bedrock may be cut at gradients not steeper than 1.5:1; however, the stability of these cut slopes should be evaluated by this office during construction. If potential unstable conditions are detected, it may be necessary to reduce the slope gradient. In general, all fill slopes should be over-filled and then cut back to proposed final slope gradients. 3000 Alexis Drive Page 21 Mitigated Negative Declaration All graded surfaces or areas disturbed by construction should be revegetated prior to the onset of the rainy season following construction to mitigate excessive soil erosion. If vegetation is not established, other erosion control provision should be employed. Ground cover, once established should be properly maintained to provide long-term erosion control. Temporary Slopes and Trench Excavations The contractor should be responsible for the stability of all temporary slopes and trenches excavated at the site and design and construction of any required shoring.. Shoring and bracing should be provided in accordance with all applicable local, state, and federal safety regulations, including the current OSHA excavation and trench safety standards. Because of the potential for variable soil conditions, field modifications of temporary cut slopes may be required. Unstable materials encountered on the slopes during the excavation should be trimmed off, even if this requires cutting the slope back at flatter inclinations. Compaction Prior to fill placement, the surface to receive the fill should be scarified to a depth of 6 inches, as necessary, and then recompacted in accordance with the recommendations presented below. Any proposed engineered fill should be compacted in uniform lifts no thicker than 8-inches in uncompacted thickness, conditioned to the appropriate moisture content, and compacted to the specifications listed in Table 2 below. The relative compaction and moisture content specified in Table 2 is relative to ASTM D 1557, latest edition. Compacted lifts should be firm and non-yielding under the weight of compaction equipment prior to the placement of successive lifts. Table 2. Compaction Specifi,cations Fill Element General fill for driveways, patio areas, and raising of site grades (for fills up to 4 feet thick) For fills greater than 4 feet thick Upper 6 inches of subgrade beneath slabs-on- grade, if required Upper 6 inches of subgrade beneath asphaltic concrete Aggregate base under slabs-on-grade ½~ to ¾-inch Crushed Rock - Compact with at least 3 passes of a vibratory plate with lift- thickness < 12 inches Relative Compaction* 90 percent 93 Percent 90 percent 95 percent 95 percent see note at left Moisture Content* 2 to 3% over optimum 2 to 3% over optimum 2 to 3% over optimum 2 to 3% over optimum 2 to 3 % over optimum Not Critical 3000 Alexis Drive Page 22 Mitigated Negative Declaration Backfill of utility trenches using on-site soils Backfill of utility trenches using imported sand 90 percent 2 to 3% over optimum 95 percent Dry *Relative to ASTM D 1557, latest edition SITE DRAINAGE Roof run-off, rain or irrigation water should be prevented from ponding near the existing and proposed structures, exterior slabs, or pavement areas. The proposed Structures should be provided with roof gutters and downspouts. Downspout drainage should be collected in a closed pipe systems and routed to discharge onto an energy dissipater at an appropriate downslope location. The finished grades around the proposed structures should be constructed to drain surface water away from the structures, slabs, pavement areas, and landscape areas. The finished ground surfaces should be graded to slope away from the structures with a minimum slope of 2 percent for a distance of approximately 5 feet around the structures. Where such surface gradients are difficult to achieve, we recommend that area drains or surface drainage swales be installed to collect surface water and convey it to a suitable discharge location away from the structures. Surface runoff should be prevented from flowing over the top of any artificial slope. The ground surface at the top of the slope should be graded to slope away from the slope or a berm or lined drainage ditch should be provided at the top of the slope. In addition, retaining walls should be provided with lined drainage swales along their uphill side to collect surface water from above. All collected water should be conveyed away from the structures via buried closed conduit and discharged onto an energy dissipater at an appropriate downslope location or into an existing storm water control system approved by the project civil engineer. We recommend that annual maintenance of the surface drainage systems be performed. This maintenance should include inspection and testing to make sure that roof gutters and downspouts are in good working order and do not leak; inspection and flushing of area drains to make sure that they are free of debris and are in good working order; and inspection of surface drainage outfall locations to verify that introduced water flows freely through the discharge pipes and that no excessive erosion has occurred. If erosion is detected, this office should be contacted to evaluate its extent and to provide mitigation recommendations, if needed. REQUIRED FUTURE SERVICES Plan Review To better assure conformance of the final design!construction documents with the recommendations contained in this report, and to better comply with the building department’s requirements, Murray Engineers, Inc. must review the completed project plans prior to construction. The plans should be made available for our review as soon as possible after completion so that we can better assist in keeping 3000 Alexis Drive Page 23 Mitigated Negative Declaration your project schedule on track. We recommend that the following note be added to the architectural, structural, and civil plans: All earthwork and site drai_nage, including basement excavation, footing excavation, preparation of subgradebeneath basement mat slab and slabs-on-grade, site grading, placement and compaction of engineered fill, and surface and subsurface drainage should be performed in accordance with the recommendations of the geotechnical report prepared by Murray Engineers, Inc., dated December 7, 2006. Murray Engineers, Inc. should be provided at least 48 hours advance notification (650-326-0440) of any earthwork operations and should be present to observe and!or test, as necessary, the earthwork and foundation installation phases of the project. Construction Observation Services Murray Engineers, Inc. should observe and test, as necessary, the earthwork and foundation phases of construction in order to a) confirm that subsurface conditions exposed during construction are substantially the same as those interpolated from our limited subsurface exploration, on which the analysis and design were based; b) evaluate compliance with the geotechnical design concepts, specifications, and recommendations; and c) allow design changes in the event that subsurface conditions differ from those anticipated. The recommendations in this report are based on limited - subsurface information. The nature and extent of variation across the site may not become evident until construction. If variations are exposed during construction, it may be necessary to re-evaluate our recommendations. Significance after Mitigation: Less than significant G. HAZARDS AND HAZARDOUS MATERIALS a) b) Note: primary issues are related to a subject other than hazardous material use. Issues and Supporting Information Resources Sources Potentially Some of the thresholds can also be dealt with under a topic heading of Public Health and Safet~ if the Would the project: Create a significant hazard to the public or the environment through the routing transport, use, or disposal of hazardous materials? Create a significant hazard to the public or the environment through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment? Emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one-quarter mile of an existing or proposed school? Significant Issues 1,7 Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact No Impact X X 1,7 c)X 1,7 3000 Alexis Drive Page 24 Mitigated Negative Declaration d)1, 7 X d) Construct a school on a property that is subject to hazards from hazardous materials contamination, emissions or accidental release? Be located on a site which is included on a list of hazardous materials sites compiled pursuant to Government Code Section 65962.5 and, as a result, would it create a significant hazard to the public or the environment? e)For a project located within an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or punic use airport, would the project result in a safety hazard for people residing or working in the project area? f)For a project within the vicinity of a private airstrip, would the project result in a safety hazard for people residing or working the project area? g)Impair implementation of or physically interfere with an adopted emergency response plan or emergency evacuation plan? h)Expose people or structures to a significant risk of loss, injury, or death involving wild land fires, including where wild lands are adjacent to urbanized areas or where residences are intermixed with wild lands? j)Create a significant hazard to the public or the environment from existing hazardous materials contamination by exposing future occupants or users of the site to contamination in excess of soil and ground water cleanup goals developed for the site? 1,2,7 MapN-9 1,2 1,2 1,2, 11 MapN-7 1,2, 11 MapN-7 1,7 X X X X X X DISCUSSION: The proposed project will not involve the handling, transportation, use, disposal, or emission of hazardous materials. The project site is not identified by either the California Environmental Protection Agency or the California State Water Resources Control Board as a hazardous materials site. The project is not expected to pose airport-related safety hazards. The proposed project will not interfere with either emergency response or evacuation. The project site is located in an area designated as a high fire hazard area but will be constructed to current fire code. Mitigation Measures: None H. HYDROLOGY AND WATER QUALITY Issues and Supporting Information Resources I Sources Potentially Significant Issues Potentially [Less Than Significant I Significant Unless Impact No Impact 3000 Alexis Drive Page 25 Mitigated Negative Declaration Would the project: a)Violate any water quality standards or waste discharge requfl’ements? b)Substantially deplete- groundwater supplies or interfere substantially with groundwater recharge such that there would be a net deficit in aquifer volume or a lowering of the local groundwater table level (e.g., the production rate of pre-existing nearby wells would drop to a level which would not support existing land uses or planned uses for which permits have been granted)? c)Substantially alter the existing drainage pattern of the site or area, including through the alteration of the course of a stream or river, in a manner which would result in substantial erosion or siltation on- or off-site? 1,2 2, 17 Map N-2 Substantially alter the existing drainage pattern of the site or area, including through the alteration of the course of a stream or river, or substantially increase the rate or amount of surface runoffin a manner which would result in flooding on- or off-site? Create or contribute runoff water which would exceed the capacity of existing or planned stormwater drainage systems or provide substantial additional sources of polluted runoff?. Otherwise substantially degrade water quality? Place housing within a 100-year flood hazard area as mapped on a federal Flood Hazard Boundary or Flood Insurance Rate Map or other flood hazard delineation map? Place within a 100-year flood hazard area structures which would impede or redirect flood flows? Mitigation Incorporated X X X 1, 2, 17 Map N-6 2, 17 Map N-6 Map N-8 X X f)1,2,11 X g) 1, 7, 17 ~ X h) X i)Expose people or structures to a significant risk of loss, injury or death involve flooding, including flooding as a result of the failure of a levee or dam or being located within a 100-year flood hazard area? Inundation by seiche, tsunami, or mudflow?J)2 Map N-6 Map N8 1, 7, 17k) Result in stream bank instability? X X X DISCUSSION: The project will reduce the amount of impervious coverage by 931 square feet and improve the existing drainage by capturing the parking lot runoff and taking it to a trench drain that will flow to an existing detention basin and allow some of the water to percolate back into the ground rather than running down 3000 Alexis Drive Page 26 Mitigated Negative Declaration the street gutter. This element of the project will reduce the volume of water that flows through the extended outfall at 2973 Alexis Drive. Currently the water from the parking lot runs off the parking lot and onto Alexis Drive. It then flows down the gutter to a catch basin across the street from the residence at 2973 Alexis drive which is the sag location on the street. The water then flows through a 15" corrugated metal storm drain pipe that goes under the road to the outfall on the 2973 Alexis Drive property. The reduction in impervious area will reduce the amount of water that flows to this low point. The trench drain that will capture the water and take it to the detention basin will slow the flow of storm water by directing it to the detention basin and letting some percolate into the ground and the rest flow more slowly into the storm drain pipe. During demolition, grading and construction, storm water pollution could result. Non-point source pollution is a serious problem for wildlife dependant on the waterways and for people who live near polluted streams or baylands. Standard conditions of architectural review approval would require the incorporation of Best Management Practices (BMPs) for storm water pollution prevention in all construction operations, in conformance with the Santa Clara Valley Non-Point Source Pollution Control Program, and submittal of a stormwater pollution prevention plan (SWPPP) in conjunction with building permit plans to address potential water quality impacts. City development standards and standard conditions of project approval would reduce potential negative impacts of the project to less than significant. The project site is not located in an area of groundwater recharge, and will not deplete groundwater supplies. The project site is not located in a 100-year flood hazard area and would not impede or redirect flood flows. The project site is not in an area that is subject to seiche, tsunami, or mudflow. Mitigation Measures: None I.LAND USE AND PLANNING Issues and Supporting Information Resources a) b) Would the project: Sources Physically divide an established community? Conflict with any applicable land use plan, policy, or regulation of an agency with jurisdiction over the project (including, but not limited to the general plan, specific plan, local coastal program, or zoning ordinance) adopted for the purpose of avoiding or mitigating an environmental effect? Conflict with any applicable habitat conservation plan or natural community conservation plan? Substantially adversely change the type or intensity of existing or planned land use in the area? 1,2,7 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated X Less Than Significant Impact No Impact X 1, 2, 3, 7 c) 1,2 X d)1,2,7 X 3000 Alexis Drive Page 27 Mitigated Negative Declaration Issues and Supporting Information Resources Would the project: e) Be incompatible witti adjacent land uses or with the general character of the surrounding area, including density and building height? f) Conflict with established residential, " recreational, educational, religious, or scientific uses of an area? g) Convert prime farmland, unique farmland, or farmland of statewide importance (farmland) to non-agricultural use? Sources 1, 2, 3, 7 1, 2, 7 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact X X No Impact X DISCUSSION: The proposed project is an allowed conditional use and is an appropriate use as regulated by the City of Palo Alto Zoning Ordinance and Comprehensive Plan land use designations. The land use designation for the project site is Open Space/Controlled Development which allows the proposed use. The site is zoned OS (open space), regulated by the Palo Alto Municipal Code (PAMC) Chapter 18.28. The proposed project complies with the zoning and land use designation as described above. The pr.oposal could potentially significantly increase the intensity of use at the site due to increased vehicular traffic but the mitigations specified in Section O (Transportation and Traffic) would reduce this impact to a less than significant level. The project will comply with all plans for conservation of biological resources given standard approval conditions, and would not impact farmland. See Sections B and D for further discussion of these topics. Mitigation Measures: See Section O (Transportation and Traffic) for the traffic mitigations. Significance after Mitigation: Less than significant a) J.MINERAL RESOURCES Issues and Supporting Information Resources Would the project: Sourccs Result in the loss of availability of a known mineral resource that would be of value to the region and the residents of the state? Result in the loss of availability of a locally- important mineral resource recovery site Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact No Impact 1,2 X b) 3000 Alexis Drive Page 28 Mitigated Negative Declaration Issues and Supporting Information Resources Would the project: delineated on a locar general plan, specific plan or other land use plan? Sources 1,2 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact No Impact X DISCUSSION: The City of Palo Alto has been classified by the California Department of Conservation (DOC), Division of Mines and Geology (DMG) as a Mineral Resource Zone 1 (MRZ-1). This designation signifies that there are no aggregate resources in the area. The DMG has not classified the City for other resources. There is no indication in the 2010 Comprehensive Plan that there are locally or regionally valuable mineral resources within the City of Palo Alto. Mitigation Measures: None K. NOISE Issues and Supporting Information Resources a) Would the project: Exposure of persons to or generation of noise levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? Sources b)Exposure of persons to or generation of excessive ground borne vibrations or ground borne noise levels? c)A substantial permanent increase in ambient noise levels in the project vicinity above levels existing without the project? d)A substantial temporary or periodic increase in ambient noise levels in the project vicinity above levels existing without the project? e)For a project located within an airport land use plan or, where such a plan has not been adopted, would the project expose people residing or working in the project area to excessive noise levels? f)For a project within the vicinity of a private airstrip, would the project expose people residing or working in the project area to excessive noise levels? Cause the average 24 hour noise level (Ldn) to increase by 5.0 decibels (dB) or more in an existing residential area, even if the Ldn would remain below 60 dB? 1,7 1, 7, 15 1, 7, 15 1,2 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact X X X No Impact X X X 1,2 g)1, 7, 15 X 3000 Alexis Drive Page 29 Mitigated Negative Declaration Issues and Supporting Information Resources Would the project: h) Cause the Ldn to increase by 3.0 dB or more in an existing residential area, thereby causing the Ldn in the area to exceed 60 dB? i) Cause an increase of 3.0 dB or more in an existing residential area where the Ldn currently exceeds 60 dB? j) Result in indoor noise levels for residential development to exceed an Ldn of 45 dB? k) Result in instantaneous noise levels of greater than 50 dB in bedrooms or 55 dB in other rooms in areas with an exterior Ldn of 60 dB or greater? 1) Generate construction noise exceeding the daytime background Leqat sensitive receptors by 10 dBA or more? Sources 1, 7, 15 1, 7, 15 1, 7, 15 1, 7, 15 1, 7, 15 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact X No Impact X X X X DISCUSSION: Construction activities will result in temporary increases in local ambient noise levels. Typical-noise sources would include mechanical equipment associated with excavation, grading and construction, which will be short term in duration. Standard approval conditions would require the project to comply with the City’s Noise Ordinance (PAMC Chapter 9.10), which restricts the timing and overall noise levels associated with construction activity. Short-term construction that complies with the Noise Ordinance would result in impacts that are expected to be less than significant. Long term noise associated with the project will be produced by HVAC mechanical equipment placed at grade in a walled enclosure at the back (south elevation) of the building. Based on the Noise study the project could increase the local ambient noise level 5dBA. The selection quieter equipment or an alternative location for the equipment would reduce the noise impact to a level of insignificance. The City’s standard conditions of approval will be applied to the project to ensure the construction noise will be reduced to a level of insignificance. The project site is not located within an airport land use plan or within the vicinity of a private airstrip. Mitigation Measures: Mitigation Measure #3 The applicant shall select quieter HVAC equipment, employ sound attenuation techniques, or place it further from the property line such that the average 24 hour noise level will not increase by 5 decibels or more in a residential area. The location, design, and specification for such equipment shall be provided for approval by staff prior to issuance of a building permit. Significance after Mitigation: Less than significant L. POPULATION AND HOUSING 3000 Alexis Drive Page 30 Mitigated Negative Declaration Issues and Supporting Information Resources Would the project: a)Induce substantial p6pulation growth in an area, either directly (for example, by proposing new homes and businesses) or indirectly (for example, through extension of roads or other infrastructure)? b)Displace substantial numbers of existing housing, necessitating the construction of replacement housing elsewhere? c) Displace substantial numbers of people, necessitating the construction of replacement housing elsewhere? d) Create a substantial imbalance between employed residents and jobs? e) Cumulatively exceed regional or local population projections? Sonrces 1,2,7 1,7 1,7 1,7 1,2, 7 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact X No Impact X X X X DISCUSSION: The project would increase and improve the existing recreational use opportunities at the existing club. The new building and other site improvements will not induce population growth. Any potential impact would be reduced to less than significant levels by the requirement of a Commercial Housing fee (PAMC Sec. 16.47) $16.52 per square foot of building area. No mitigation is necessary. Mitigation Measures: None M. PUBLIC SERVICES Issues and Supporting Information Resources Would the project: Would the project result in substantial adverse physical impacts associated with the provision of new or physically altered govelTmaental facilities, need for new or physically altered governmental facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times or other performance objectives for any of the public services: Fire protection? Police protection? Sources Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact No Impact X X X 3000 Alexis Drive Page 31 Mitigated Negative Declaration Issues and Supporting Information Resources Would the project: Schools? Parks? Other public facilities? Sources 1,2 1, 2 1,2 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact No Impact X X X DISCUSSION: The proposed project would not impact fire service to the area. The conditions of approval for the project contain requirements to address all fire prevention measures. The site is located within the jurisdiction of the Palo Alto Police Department. The facility would not by itself result in the need for additional police officers, equipment, or facilities. No significant demand for school services would result from the project, which is not expected to generate a substantial increase in Palo Alto’s residential population. No significant direct demand for additional parks would result from the project, which is not expected to generate a substantial increase in Palo Alto’s residential population. Mitigation Measures: None N. RECREATION Issues and Supporting Information Resources Would the project: a)Would the project increase the use of existing neighborhood and regional parks or other recreational facilities such that substantial physical deterioration of the facility would occur or be accelerated? b) Does the project include recreational facilities or require the construction or expansion of recreational facilities which might have an adverse physical effect on the environment? Sources 1,7 1,7 Potentiality Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact X No Impact X DISCUSSION: The project would increase the existing recreational facilities at the site and would not have any significant impact on existing parks, nor include or require construction of recreational facilities off site. Impacts on local parks from new employees are considered less than significant, and community facilities development impact fees will be paid as required. No mitigation is required. 3000 Alexis Drive Page 32 Mitigated Negative Declaration Mitigation Measures: None Oe Issues and Supporting Information Resources TRANSPORTATION AND TRAFFIC Sources Would the project: a)Cause an increase in traffic which is substantial in relation to the existing traffic load and capacity of the street system (i.e., result in a substantial increase in either the number of vehicle trips, the volume to capacity ratio on roads, or congestion at intersections)? b)Exceed, either individually or cumulatively, a level of service standard established by the county congestion management agency for designated roads or highways? c)Result in change in air traffic patterns, including either an increase in traffic levels or a change in location that results in substantial safety risks? d)Substantially increase hazards due to a design feature (e.g., sharp curves or dangerous intersections) or incompatible uses (e.g., farm equipment)? Result in inadequate emergency access? Result in inadequate parking capacity? e) 0 g)Conflict with adopted policies, plans, or programs supporting alternative transportation (e.g., pedestrian, transit & bicycle facilities)? h) Cause a local (City of Palo Alto) intersection to deteriorate below Level of Service (LOS) D and cause an increase in the average stopped delay for the critical movements by four seconds or more and the critical volume/capacity ratio (WC) value to increase by 0.01 or more? i) Cause a local intersection already operating at LOS E or F to deteriorate in the average stopped delay for the critical movements by four seconds or more? j) Cause a regional intersection to deteriorate from an LOS E or better to LOS F or cause critical movement delay at such an intersection already operating at LOS F to increase by four seconds or more and the critical V/C value to increase by 0.01 or 1, 7, 11, 14, 18, 19 1, 2, 7 1, 2, 14 1, 2, 7, 14, 18, 19 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated X X Less Than Significant Impact X X X X No Impact X X X X 3000 Alexis Drive Page 33 Mitigated Negative Declaration Issues and Supporting Information Resources Would the project: more? k) Cause a freeway segment to operate at LOS F or contribute traffic in excess of 1% of segment capacity to a freeway segment already operating at LOS F? 1) Cause any change in traffic that would increase the Traffic Infusion on Residential Environment (TIRE) index by 0.1 or more? m) Cause queuing impacts based on a comparative analysis between the design queue length and the available queue storage capacity? Queuing impacts include, but are not limited to, spillback queues at project access locations; queues at turn lanes at intersections that block through traffic; queues at lane drops; queues at one intersection that extend back to impact other intersections, and spillback queues on ramps. n) Impede the development or function of planned pedestrian or bicycle facilities? o) Impede the operation of a transit system as a result of congestion? p) Create an operational safety hazard? Sources 1, 2, 7, 14 1, 2, 7, 14 1, 6, 7, 14, 18, 19 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated X Less Than Significant Impact X No Impact X DISCUSSION: The new and expanded uses associated with the project have b~en identified as having the potential to increase traffic volumes and increase the demand for parking. Mitigation measures have been specified to ensure that the proposed project would not create a negative impact associated with traffic or parking. The ITE Trip Generation Manual does not have data for this specific type of use (fitness as part of country club). The manual does include rates for stand alone health and fitness clubs but the proposed use does not precisely fit this category. Since the health and fitness club designation in the ITE manual is the closest measure that exists, its trip generation rate was used to calculate the traffic volume that the project may generate. Using this measure was thought to be highly conservative since the fitness facility proposed by the club is very different from a stand along fitness facility such as a 24 Hour Fitness. The club’s fitness facility is a members only facility and is not open to the general public. The facility is an accessory use of the country club like the fitness room of a hotel or apartment complex. It is also not a stand alone facility in that many of the people using this facility are likely to be secondary users that would have made a trip to the Country Club for other purposes in addition to use of the spa and fitness facility. There will of course be new primary trips, but without adequate data from the manual, the anticipated number of trips is likely to have been over estimated. The city’s traffic consultant has estimated a joint use factor of 30% to reduce the total trips to reflect the overlapping uses. The applicant’s consultant projected a 50% joint use, which staff and the City’s consultant imagine that may be excessive, as some oth those trips would have occurred even without the fitness facility. The neighbor’s attorney and traffic consultant contend that the trips do not reflect the possible increase in 3000 Alexis Drive Page 34 Mitigated Negative Declaration membership, but the City notes that the trip generation factor is based on square footage, regardless of membership, and is if anything overestimated. The City uses the tlu’eshold of_a 0.1 increase in the TIRE (Traffic Infusion on the Residential Environment) index to determine if a project would have a significant impact on neighborhood streets. A 10% increase is anticipated to be noticeable to residents. A 0.1 increase would be equal to 380 vehicles per day for this project. Using the ITE Trip Generation numbers for a health and fitness club, the proposal would trip the TIRE index. Existing traffic levels were established to determine the existing baseline for traffic volume. The traffic study analyzed the historical uses of the club facility, the baseline traffic volumes, and the proposed expanded facilities to asses the proposed traffic impacts. Based on the use of the ITE trip generation values with only a 30% reduction factor it has been determined that the project would need to reduce the number of daily trips by 67 vehicles for a weekday and 95 for a weekend day to avoid tripping the TIRE index. The project square footage has been reduced since the calculation of these numbers and the reduction of square footage by 1,434 square feet reduces the trip number by 30. This means that in order to avoid tripping the TIRE index, the mitigation measures must reduce the weekday trips by 37 and the weekend trips by 65. The implementation of the project reduces the parking deficit per the code. Based on the traffic analysis, the parking provided at the club is adequate to serve the current and future needs of the club for most of the clubs operations and events and will be improved with the implementation of the project. For large events where the number of cars may exceed the regular capacity of the parking lot mitigation measures such as valet parking and use of the golf course for overflow parking have been specified. With the implementation of these mitigations the impact is less than significant. The following mitigation measures are proposed and shall be implemented to ensure that the TIRE index is not exceeded. Mitigation Measures: Mitigation Measure #4: The applicant shall develop a transportation demand management (TDM) program to reduce average daily weekday trips by at least 37 trips, and to reduce average daily weekend trips by at least 65 trips. The program shall be designed and submitted for review by the City’s transportation staff, shall be demonstrated to be enforceable, and must be approved prior to issuance of any grading or building permit. The program shall be proposed to the satisfaction of the director, shall include proposed performance targets for parking and or trip reduction, and shall designate a single entity to implement the proposed measures. Monitoring reports shall be submitted to the director each year for a period of five years after building occupancy noting the effectiveness of the proposed measures as compared to the initial performance targets and suggestions for modifications if necessary to enhance parking and/or trip reductions. In no event shall social memberships increase above 175 members unless the TDM traffic targets are met to the satisfaction of the director. The TDM program may include but is not limited to the following measures: a) Provide incentives to Club members that will encourage them to combine their trips to the facility rather than make multiple trips (joint usage) or carpooling for employees and guests. An example of this could be the issuance of cards that provide for free golf cart rentals, free exercise classes etc. for x number of combined trips or carpool/vanpool trips. 3000 Alexis Drive Page 35 Mitigated Negative Declaration b) Decrease the size and/or frequency of exercise classes in the new fitness facility. c)Open the fitness facility or~ Mondays (when golf is normally closed) and close it on Wednesday, which is typically the busiest weekday at the club. d)Control the volume of use of the new private banquet rooms or other Club facilities as necessary to ensure that the traffic volume stays below the TIRE index. Mitigation Measure #5: The club shall employ measures to ensure that all of the parking demand generated by club activities shall be met on site such that no club users are parking on Alexis Drive or its side streets. These measures shall include but are not limited to mandatory valet parking for those events that may exceed the typical capacity of available parking at the club and the use of the golf course for overflow parking if needed. Significance after Mitigation: Less than significant et Issues and Supporting Information Resources UTILITIES AND SERVICE SYSTEMS Sources Would the project: a)Exceed wastewater treatment requirements of the applicable Regional Water Quality Control Board? b)Require or result in the construction of new water or wastewater treatment facilities or expansion of existing facilities, the construction of which could cause significant environmental effects? c)Require or result in the construction of new storm water drainage facilities or expansion of existing facilities, the construction of which could cause significant environmental effects? d)Have sufficient water supplies available to serve the project from existing entitlements and resources, or are new or expanded entitlements needed? e)Result in a determination by the wastewater treatment provider which serves or may serve the project that it has inadequate capacity to serve the project’s projected demand in addition to the provider’s existing commitments? Be served by a landfill with sufficient permitted capacity to accommodate the project’s solid waste disposal needs? Comply with federal, state, and local statutes 1, 2, 11 1, 2, 11 1, 2, 11 1, 2, 11 1, 11 Potentially Significant Issues Potentially Significant Unless ’ Mitigation Incorporated Less Than Significant Impact No Impact X X X X X f)X 1, 11 g) X 3000 Alexis Drive Page 36 Mitigated Negative Declaration Issues and Supporting Information Resources Would the project: and regulations relafed to solid waste? Result in a substantial physical deterioration of a public facility due to increased use as a result of the project? Sources 1,11 1, 11 Potentially Significant Issues Potentially Significant Unless Mitigation Incorporated Less Than Significant Impact No Impact X DISCUSSION: The proposed project would not significantly increase the demand on existing utilities and service systems, or use resources in a wasteful or inefficient manner. Standard conditions of approval require the applicant to submit calculations by a registered civil engineer to show that the on-site and off site water, sewer and fire systems are capable of serving the needs of the development and adjacent properties during peak flow demands. Trash and recycling facilities exist on site to accommodate the expected waste and recycling streams that would be generated by the expected uses within the building. Implementation of the project would reduce the impervious coverage on site and a proposed trench drain would prevent parking lot storm water from draining off site. Mitigation Measures: None Q. MANDATORY FINDINGS OF SIGNIFICANCE Issues and Supporting Information Resources Sources Potentially Significant Would the project:Issues a)Does the project have the potential to degrade the quality of the environment, substantially reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels, threaten to eliminate a plant or animal community, reduce the number or restrict the range of a rare or endangered plant or animal or eliminate impm~ant examples of the major periods of California history or prehistory? b)Does the project have impacts that are individually limited, but cumulatively considerable? ("Cumulatively considerable" means that the incremental effects of a project are considerable when viewed in connection with the effects of past projects, the effects of other current projects, and the effects of probable future projects)? c) Does the project have environmental effects which will cause substantial adverse effects on human beings, either directly or indirectly? 1, 2, 7, 11 Map L-7 Map N-1 1, 7, 6, 14, 15 Potentially Significant Unless Mitigation Incorporated X X Less Than Significant Impact X No Impact 3000 Alexis Drive Page 37 Mitigated Negative Declaration DISCUSSION: The project would not have an impact on fish or wildlife habitat, nor would it impact cultural or historic resources. The uses are appropriate for the site but some mitigation measures would be required to reduce impacts to a level of insignificance. Mitigation measures are required to control traffic volumes, noise levels, night time lighting levels, and adverse visual impacts to adjacent residential properties. Global climate change is the alteration of the Earth’s weather including its temperature, precipitation, and wind patterns. Global temperatures are affected by naturally occurring and anthropogenic generated atmospheric gases, such as carbon dioxide, methane, and nitrous oxide. These gases allow sunlight into the Earth’s atmosphere, but prevent radiative heat from escaping into outer space, which is known as the "greenhouse" effect. The world’s leading climate scientists have reached consensus that global climate change is underway and is very likely caused by humans. 20 Agencies at the international, national, state, and local levels are considering strategies to control emissions of gases that contribute to global warming. There is no comprehensive strategy that is being implemented on a global scale that addresses climate change; however, in California a multiagency "Climate Action Team", has identified a range of strategies and the Air Resources Board, under Assembly Bill (AB) 32, has been designated to adopt the main plan for reducing California’s GHG emissions by January 1, 2009, and regulations and other initiatives for reducing GHG emissions by January 1,2011. AB 32 requires achievement by 2020 of a statewide greenhouse gas emissions limit equivalent to 1990 emissions, and the adoption of rules and regulations to achieve the maximum technologically feasible and cost-effective greenhouse gas emissions reductions. By 2050, the state plans to reduce emissions to 80 percent below 1990 levels. While the state of California has established programs to reduce greenhouse gas emissions, there are no established standards for gauging the significance of greenhouse gas emissions. Neither CEQA nor the CEQA Guidelines provide any methodology for analysis of greenhouse gases. Given the "global" scope of global climate change, the challenge under CEQA is for a Lead Agency to translate the issue down to the level of a CEQA document for a specific project in a way that is meaningful to the decision malting process. Under CEQA, the essential questions are whether a project creates or contributes to an environmental impact or is subject to impacts from the environment in which it would occur, and what mitigation measures are available to avoid or reduce impacts. The project would generate greenhouse gases primarily through electricity generation!use and generation of vehicle trips. Efforts to reduce the project’s greenhouse gas emissions by reducing electricity d~mand and reducing vehicle trips and miles, therefore, should be implemented. The proposed project would conform to the City’s Comprehensive Plan and other policies to reduce vehicle trips and miles traveled. Declaring an impact significant or not implies some knowledge of incremental effects that is several years away, at best. To determine whether the proposed project would have a significant impact on global climate change is speculative, particularly given the fact that there are no existing numerical thresholds to determine an impact. However, in an effort to make a good faith effort at disclosing environmental impacts and to conform with the CEQA Guidelines [§ 16064(b)], it is the City’s position that, based on the nature and size of this redevelopment project, its location within an established urban area served by existing infrastructure (rather than a greenfield site), the project’s nominal percentage increase in greenhouse gas emissions, the proposed project would not impede the state’s ability to reach 3000 Alexis Drive Page 38 Mitigated Negative Declaration the emission reduction limits/standards set forth by the State of California by Executive Order S-3-05 and AB 32. Over the long term, the expectation from regional planning agencies is that intensifying land uses near transit will lead. to reduced dependence on the automobile and increased transit ridership. For these reasons, this project would not make a cumulatively considerable contribution to global climate change associated -;vith greenhouse gas emissions. The project has submitted the United States Green Building Council’s Leadership in Energy and Environmental Design (LEED) checklist and has indicated that they could reach the "certified" level. Implementation of these green building strategies will help to reduce the impact on climate change. SOURCE REFERENCES 1.Project Planner’s knowledge of the site and the proposed project 2.Palo Alto Comprehensive Plan, 1998-2010 3.Palo Alto Municipal Code, Title 18 - Zoning Ordinance 4.Required compliance with the Building Code and Standards for Seismic Safety and Wind load 5.Geotechnical investigation, Murray Engineers Inc., December 7, 2006 6.Traffic Analysis, Pang Engineers, inc., August 24, 2007 7.Project Plans, Cody Anderson Wasney Architects, Received December 19, 2007 8.Arborist Report, Barrie d. Coate and Associates, dated June 26, 2007 9.Alquist-Priolo Earthquake Fault Zoning Map 10.P alo Alto Tree Technical Manual, Municipal Code Chapter 8.10.030, June 2001 11.City Departmental analysis communication/memos 12.Important Farmland in California Map, California Department of Conservation, Division of Land Resource Protection, Farmland Mapping and Monitoring Program, 2004. 13. Agricultural Preserves Map, California Department of Conservation, Division of Land Resources Protection, 2001. 14. Comments from Dennis Struecker, PE, Associate Vice President, DMJM Harris, September 28, 2007 15. Acoustical analysis (noise study), Mei Wu Acoustics, March~ 12, 2007 16. Supplemental letter to the Geotechnical Investigation, Murray Engineers, July 3, 2008 17. Supplemental letter, Storm drain review, MacLeod and Associates Inc., July 14, 2008 18. Supplemental letter, Traffic Analysis, Pang Engineers, Inc. July 23, 2008 19. Supplemental letter, Traffic Analysis, Pang Engineers, Inc. June 19, 2008 20. Palo Alto Hills Golf and Country Club letter, July 15, 2008 DETERMINATION On the basis of this initial evaluation: I find that the proposed project COULD NOT have a significant effect on the environment, and a NEGATIVE DECLARATION will be prepared. I find that although the proposed project could have a significant effect on the environment, there will not be a significant effect in this case because revisions in the project have been made by or agreed to by the project proponent. A MITIGATED NEGATIVE DECLARATION will be prepared. X 3000 Alexis Drive Page 39 Mitigated Negative Declaration I find that the proposed project MAY have a significant effect on the environment, and an ENVIRONMENTAL IMPACT REPORT is required. I find that the proposed project MAY have a "potentially significant impact" or "potentially significant unless mitigated" impact on the environment, but at least one effect: 1) has been adequately analyzed in an earlier document pursuant to applicable legal standards, and 2) has been addressed by mitigation measures based on the earlier analysis as described on attached sheets. An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only the effects that remain to be addressed. I find that although the proposed project could have a significant effect on the environment, because all potentially significant effects (a) have been analyzed adequately in an earlier EIR or NEGATIVE DECLARATION pursuant to applicable standards, and (b) have been avoided or mitigated pursuant to that earlier EIR or NEGATIVE DECLARATION, including revisions or mitigation measures that are imposed upon the proposed project, nothing further is required. Russ Reich Project Planner _September 19, 2008 Date Director of Planning and Community Environment Date 3000 Alexis Drive Page 40 Mitigated Negative Declaration ATTACHMENT D 0 o o o 0~o o~ ~ ¯ ~ ~ c c o c t- o~o ~S= _.a~o 0 o~.__. o~