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Home My WebLink About2838 Adeline Drive - Staff ReportItem # 6 Action Calendar City .of Burlingame Mitigated Negative Declaration, Design Review, and Special Permit for an Attached Garage for a New Single Family Dwelling Address: 2838 Adeline Drive Meeting Date: 3/8/04 Request: Mitigated negative declaration, design review and a special permit for an attached garage for a new two-story single family dwelling, zoned R-1. Applicant/Property Owner/Designer : Michael Gaul APN: 027-091-080 Lot Area: 26,576 SF (0.61 acres) General Plan: Low Density Residential Zoning: R-1 Adjacent Development: Residential/Religious Institution CEQA Status: Refer to attached Mitigated Negative Declaration No. ND —532-P Current Use: Vacant lot Proposed Use: Single family dwelling Allowable Use: Single family dwelling Site Summary: The applicant is proposing to construct a new two and one half story single family dwelling with an attached garage at 2838 Adeline Drive, zoned R-1. The subject property is currently vacant and heavily vegetated with shrubs and trees, predominantly Blue Gum Eucalyptus. There are also Coast Live Oaks, California Bay Laurel and Acacia on this site. As part of the development of this parcel the applicant will be removing 40 trees from this site, 15 of which are of protected size, most of which are Eucalyptus trees. Burlingame municipal code section 11.06.020(f) defines a protected tree as any tree with a circumference of 48 inches or more when measured 54 inches above natural grade. The lot has a slope of between 21 % and 22%. Code section 25.70.025(2)(d) states that the maximum driveway slope shall not exceed 15 percent. The project includes grading and construction of retaining walls on this slope in order to build an access driveway to the more level portion of the lot where the proposed house will be constructed. This project is not exempt from CEQA review because of the trees and the slope on the lot. The project requires the following planning approvals: Mitigated negative declaration, a determination that with mitigation measures there are no significant environmental effects as a result of this project; • Residential design review (C.S. 25.57.010(a)); and • Special permit for an attached garage (C.S. 25.28.035(a)). Project: The proposed house would cover 16.3% (4,343 SF) of the 26,576 SF lot, where 40% (10,630 SF) is the maximum lot coverage allowed. The house would have a total floor area of 7,797 SF (0.29 FAR) where 8,000 SF (0.30 FAR) is the maximum allowed. There would be three covered parking spaces provided for this five bedroom house in the three attached garages. Mitigated Negative, Design Review and Special Permit 2838 Adeline Drive The applicant has submitted a "Calendar of Operations" for the project. This sheet lists the timeline and anticipated order of construction that will occur for this project. The first thing to be done on -site is the installation erosion control measures. Then the following would occur: removal of 3 trees at the top of the proposed driveway area, construction of driveway retaining walls, backfill of driveway and gravel surfacing, pour concrete driveway entrance at street, tree removal from site and stump grinding, house foundation excavation, house foundation form and pour, grading of site/installation of hardscape at perimeter, pool excavation and construction, underground trenching for utilities, landscape irrigation and drainage, installation of underground utilities landscape irrigation, and drainage then the planting of landscape in all areas of the site except 20' around the house and pool, which will be installed later. PROPOSED ALLOWED/REQ'D SETBACKS Front: 1st flr 63' 15' or block average (65') 2nd flr 85' 20' Side (left): 1st flr 12' 7' 2nd flr 20' Side(right): ls' flr 25' 7' 2nd flr 25' Rear: 1st flr 105' 15' 2nd flr 105' 20' LOT COVERAGE: 16.3% (4,343 SF) 40% (10,630 SF) FAR: 7,797 SF/0.29 FAR 8,000 SF/ 0.30 FAR PARKING: 3 covered (10' x 20') 2 covered (20' x 20') + 1 uncovered' + 1 uncovered HEIGHT: -8.61' (building is 2 1/2 stories 30' whichever is less below curb level) DHENVELOPE: Meets requirement See code ' Special permit for attached garage. Staff Comments: See attached. The arborist report on the proposed tree removals is attached for reference. The City Arborist has been out to the property and finds the information provided to be sufficient. There are mitigation measures pertaining to the tree removals and protection of the remaining trees that will be included in the staff report for action as conditions of approval. Tree removal permits shall be required as stated in the Chapter 11.06 and as determined by the City Arborist. February 9, 2004 Design Review Study Meeting: On February 9, 2004, the Planning Commission reviewed this project for design review (see attached 2/9/04 Planning Commission minutes). The Planning Commission made comments on the project and voted to place this item on the action calendar when the plans and mitigated negative declaration had been revised to address the issues. Fa Mitigated Negative, Design Review and Special Permit 2838 Adeline Drive The Planning Commission comments and concerns are listed below: • Negative Declaration did not include any analysis of the impact of removing stand of trees on this site on the long distance views, which the General Plan states these distant views of hillside areas are to be protected, need to know that project or change is being evaluated with this project. Staff hasprepared an addendum that reviews the impact of the tree removal on long distance views. Please see addendum attached. The applicant tookphotographs from two vantagepoints and showed the views with the canopy of the trees removed. The photograph taken from the parking lot at the Kohl Mansion on the Sisters of Mercy property was taken from approximately 500-600' away from the subject property. The photograph taken from Hillside Drive, above the subject property, was taken from approximately 1, 000' away from the subject property. From both points you can see the canopy of the existinggrove ofEucalyptus trees on the subject property. Photographic imaging was done showing the view from the two points with the canopy of the trees removed. The visual analysis shows that the amount of open space, open sky view area will be increased with the removal of the trees on the subject property. Because the proposed house will be located on the lowerportion ofthe lot it will not be visible from the sites where the distant views were analyzed. Therefore, there will be no significant impact on long distance views as a result of this project, the removal of trees and the construction of the new single family dwelling. No additional mitigation measures are necessary. Concerned with fire department access for equipment; This issue has already been addressed in the Mitigated Negative Declaration in the Public Service Summary, but is summarized in this section. Due to the 20-22% slope on this lot, the driveway proposed to access the house will meander and will not accommodate the turning radius for afire truck. The City Fire Marshal is requiring a paved throat at the top of the driveway that will accommodate a single fire engine. The Fire Marshal has also required installation ofstairs to emergency personnel direct access down the slope from Adeline Drive to the house and requested that this staircase be lighted at all times for safe passage. The applicant is proposing to have a 20' wide by 40' deep paved turnout at the top of the driveway that will allow parking for afire truck on -site, without blocking circulation on Adeline Drive. The plans also include a staircase from the turnout down to the lower driveway to allow direct access to the structure for emergency response personnel. These items have been included in the plans and have been reviewed and found acceptable by the Fire Marshal. In addition the house will be built with afire protection sprinkler system. • Do not see why the tree stumps need to be ground within 24 hours of trimming, does this relate in some way to maintaining slope stability during construction of the retaining walls; As trees are cut the wood hardens making stuff removal very difficult, therefore grinding the stumps within 24 hours is somewhat easier and less labor intensive. • Inconsistencies between the landscape plan and the house plans, need to be corrected; • Selection of trees does not seem to be sensitive to the water balance on the lot and to the existing oak tree, Water balance on site should drive landscape plan; • Too much variety in plant choice will have an inconsistent look when done, new trees need to support the existing oak; Some of the trees suggested are not trees but shrubs; • Planter on the south side of the house needs to be removed to allow access to the garage Please refer to the revised landscape plan, date stamped February 24, 2004, that has been submitted in response to the above comments. The footprint of house on the landscape plan has been corrected, and now matched the site andfloorplans. The landscapeplan includes 6 more Coastal Live Oaks, replacement of the Mitigated Negative, Design Review and Special Permit 2838 Adeline Drive Red Bud shrubs at the driveway property line with Swampmyrtle trees and removal of the Jacaranda that was on the side in the planter between the garage doors. • Need a more detailed erosion control plan, the use of "j" hooks seems to be in error. The applicant met with the City s stormwater specialist and reviewed the erosion control measures needed for thisproject. Aspart of the erosion controlplan theproperty owner will be including the "Blueprint for the Bay" brochure which outlines best managementpractices for site runoff, this information will begiven to the General Contractor on -site and will be reviewed by all workers. The erosion control plan has also been revised to note that the concrete driveway apron will be poured in place prior to allowing vehicular access to the site. A series of rock check dams to control sediment run-off and a silt basin have been added at the rear of the property. Notes have also been added to the erosion control plan stating that tree mulch and debris from stump grinding will be used to cover and stabilize exposed soil. The applicant has also submitted a "Calendar of Operations " which lists the timeline and order of events that will take place during the construction of this project, this calendar includes the installation of erosion control measures prior to beginning construction. The Commission voted to place this item on the action calendar when the amendments had been made to the Negative Declaration and the above stated items have been addressed. Scoping Session (May 27, 2003) and Response to Issues: On May 27, 2003, the applicant was before the Planning Commission for an environmental scoping session to identify any environmental concerns the Planning Commission may have with the proposed project (see attached minutes May 27, 2003). The potential environmental effects identified by staff at that time were: grading and construction impacts on a sloping lot, including soil erosion and loss of vegetation. At that meeting the Planning Commission identified the following additional items to be considered in the environmental document. Staff has briefly summarized the response, which is found in italics below each of the Commission's comments. Commission noted that the following concerns should be addressed in the environmental document: • Evaluate a detailed erosion plan, including monitoring, for the grading of the site for the building pad and for the driveway; The applicant has submitted an erosion control plan, date stamped December 8, 2003. The applicant has stated that work on the site will begin with the grading and construction of the retaining walls and driveway, then the removal of the tress, and finally the construction of the house. On the erosion control plan the applicant notes that graded slopes will be covered with jute mesh where disturbed, and will be seeded if work is suspended for more than two weeks. The areas adjacent to the driveway retaining walls will be planted upon completion of backfill. The grading and excavation will only be done during dry weather. The driveway will be covered with rock upon completion of the retaining walls and the driveway fill. AIINPDES measures will be taken during construction. Please see mitigation measures in attached mitigated negative declaration for additional erosion control measures. • The landscape plan should be evaluated for erosion control measures; Erosion control measures are provided on the plan date stamped December 8, 2003. As required by the City Arborist, the mitigation stated in the negative declaration requires that the site be terraced immediately after the removal of the trees and no later than 4 weeks after cutting the trees to prevent erosion and soil instability on the slope. The revised landscape plan also details the planting of vines, shrubs and groundcover that will also prevent erosion on the site. Rock rip -rap will be placed at all discharge points 4 Mitigated Negative, Design Review and Special Permit 2838 Adeline Drive for on -site drainage. Will the stumps of the removed eucalyptus trees be ground; if not how will they be treated; The applicant has noted in his December 29, 2003 response letter, that the stumps of the non-native tree species (Eucalyptus, Acacia) will be ground. The stumps of the native tree species will be left in the ground in hopes of re -growth. As suggested by the City Arborist, and as required as a mitigation measure, the stumps of the Eucalyptus trees must be ground within 24 hours of the tree removal. The effect the removal of the eucalyptus trees will have on the views from surrounding properties; the Sister's of Mercy have a trail on their property that they allow the public to use, how will the proposed development, and in particular the rear elevation of the house, rear property line fence and the landscaping, impact the views from the trail; The applicant has submitted digital images showing the proposed structure from three different vantage points. Each vantage point includes three photos,]) existing view; 2) view after construction with initial planting; and 3) view after approximately S years. The digital images include a plant list with the names, sizes and grow rate of the species proposed for planting, along with an analysis of each location. The digital imaging and analysis were prepared by Doug Johnson of Fat Box, Redwood City, CA. What tree protection measures are needed for the trees that will remain on the site; and Tree protection measures are found in the arborist's reports from Maguire Tree Care, date stamped April 1, 2003, and are listed as mitigations #22 through #31 in the attached mitigated declaration. The protection measures include grinding stumps, terracing the site, covering the root zones of the remaining Oak trees with 4 " of mulch and a layer ofplywood, wrapping trunks of remaining trees with wooden planks, and limb pruning prior to construction. • What is the proposed design and engineering required for the driveway, will there be retaining walls and how high will they be, will the height of the walls be sufficient to prevent runoff and soil erosion onto the roots of the remaining trees on the site. The applicant states in his letter dated December 29, 2003, that the retaining walls will be constructed to support the driveway and will remove none of the larger trees which will contribute to slope stability. The driveway retaining walls will increase the slope stability based on their location working around the trees and the nature of the retaining walls being designed to support the hillside. The large Eucalyptus trees on the site will be removed after the driveway is in place both for cost measures and to provide the desired stability of the slope. The soils report states that temporary shoring will be used to stabilize the hillside during excavation. The soils report also classifies the soil type in this area as stable to moderately stable. According to the driveway section drawings, sheet 1A, dated stamped November 10, 2003, the height of the retaining walls will range from 2' to 13 '. The soils report states that adequate drainage shall be provided for the retaining walls by a sub -drain system consisting of a four inch diameterperforated pipe (AESslotted) bedded in drain rock wrapped effectively with filter fabric to a height of two-thirds the height of the wall. Commission also asked that staff or the applicant address the following issues on the plans and in the processing of the application: • Story poles should be erected at the time the design of the house is finalized; Story poles should not be erected until after the design review study meeting. 5 Mitigated Negative, Design Review and Special Permit 2838 Adeline Drive • Does the lower floor plan meet the 10% ventilation requirement; and This item will be reviewed during the Building Department plan check. • Clarify on the plans exactly which trees will remain on the site. A revised landscape plan was submitted, date stamped November 10, 2003, which clearly indicates the trees proposed for removal which are designated by a circle with an X through it. Negative Declaration: The initial study prepared for this project identified potential impacts in the area of geology and soils, hydrology and water quality, biological resources, noise, utilities and service systems, and aesthetics. However, based upon the studies prepared for the project, and the mitigation measures identified in the initial study, it has been determined that the proposed project is eligible for a mitigated negative declaration since the initial study did not identify any adverse impacts which could not be reduced to levels acceptable to the community by mitigation (see attached mitigated negative declaration No.-ND-532-P). The mitigation measures in the initial study have been incorporated into the recommended conditions of approval. Planning Commission would need to accept the negative declaration with its mitigations, finding that community concerns and standards have been met by the requirements and modifications of the proposed mitigations. Design Review Criteria: The criteria for design review as established in Ordinance No. 1591 adopted by the Council on April 20, 1998 are outlined as follows: Compatibility of the architectural style with that of the existing character of the neighborhood; 2. Respect for the parking and garage patterns in the neighborhood; 3. Architectural style and mass and bulk of structure; 4. Interface of the proposed structure with the structures on adjacent properties; and 5. Landscaping and its proportion to mass and bulk of structural components. Findings for a Special Permit: In order to grant a Special Permit for garage length the Planning Commission must find that the following conditions exist on the property (Code Section 25.51.020 a-d): (a) The blend of mass, scale and dominant structural characteristics of the new construction or addition are consistent with the existing structure's design and with the existing street and neighborhood; (b) the variety of roof line, facade, exterior finish materials and elevations of the proposed new structure or addition are consistent with the existing structure, street and neighborhood; (c) the proposed project is consistent with the residential design guidelines adopted by the city; and (d) removal of any trees located within the footprint of any new structure or addition is necessary and is consistent with the city's reforestation requirements, and the mitigation for the removal that is proposed is appropriate. 0 Mitigated Negative Declaration, Design Review, and Special Permit 2838 Adeline Drive Planning Commission Action: The Planning Commission should hold a public hearing. Affirmative action should be made by resolution and should include findings for design review and special permit. The reasons for any action should be clearly stated. At the public hearing the following conditions should be considered: 1. that the project shall be built as shown on the plans submitted to the Planning Department date stamped April 29, 2003, Sheets 1 thru 8, site plan, floor plans, roof plan, and building elevations, and Sheets L1.0 and L2.0 landscape plan and erosion control plan, date stamped February 24, 2004; 2. that the applicant shall adhere to the construction phasing schedule listed in the applicants "Calendar of Operations" , however not necessarily the dates, which may shift for various reasons; 3. that the applicant shall install a walkway in front of the property to a standard acceptable to Public Works Department; 4. that any changes to the size or envelope of the basement, first or second floors, which would include adding or enlarging a dormer(s), moving or changing windows and architectural features or changing the roof height or pitch, shall be subject to design review; 5. that the project shall comply with the Construction and Demolition Debris Recycling Ordinance which requires affected demolition, new construction and alteration projects to submit a Waste Reduction Plan and meet recycling requirements; any partial or full demolition of a structure, interior or exterior, shall require a demolition permit; 6. that the conditions of the Fire Marshal's April 24 and 30, 2003 memos, City Engineer's April 16, 2003 and May 8, 2003 memos, and City Arborist's April 11, 2003 memo shall be met; 7. that prior to scheduling the roof deck inspection, a licensed surveyor shall shoot the height of the roof ridge and provide certification of that height; 8. that prior to scheduling the framing inspection, the project architect, engineer or other licensed professional shall provide architectural certification that the architectural details such as window locations and bays are built as shown on the approved plans; if there is no licensed professional involved in the project, the property owner or contractor shall provide the certification under penalty of perjury; 9. that prior to final inspection, Planning Department staff will inspect and note compliance of the architectural details (trim materials, window type, etc.) to verify that the project has been built according to the approved Planning and Building plans; 10. that all air ducts, plumbing vents, and flues shall be combined, where possible, to a single termination and installed on the portions of the roof not visible from the street; and that these venting details shall be included and approved in the construction plans before a Building permit is issued; 11. That there shall be no pile driving as part of this project, 12. That the house foundation be a drilled pier and grade beam design, penetrating into the underlying sandstone bedrock material a minimum of 8 feet, with an expected overall depth of 18 feet with a minimum of a 16" diameter; Mitigated Negative Declaration, Design Review, and Special Permit 2838 Adeline Drive 13. That the piers shall be designed to resist a lateral active pressure of SO pounds per cubic foot acting on the top five feet of the pier; 14. That all clearing and earth moving activities shall only occur during dry weather only, April 15 through November 1, as per the San Francisco Regional Water Quality Control Board and that all NPDES and STOPPP requirements shall be met on the site at all times during construction; 15. That at the commencement of construction, the retaining walls shall be erected prior to the removal of the trees on -site and prior to the grading of the driveway; 16. That no demolition or grading shall occur until the City Arborist has reviewed and approved all required arborist reports; and during excavation and slope cutting temporary shoring shall be required to prevent movement of exposed materials. All shoring shall be analyzed by licensed engineer, and shall be approved by the City Engineer prior to any construction, 17. That the retaining walls shall be designed to resist lateral earth pressure and additional lateral pressures to the levels required by a license soils engineer and approved by the City; caused by surcharge loads applied at the ground surface behind the walls; 18. That all imported fill materials on the site shall be non -expansive materials with a Plasticity Index of 12 or less; 19. That all retaining walls shall have a sub -drain system consisting of a four inch diameter perforated pipe bedded in drain rock wrapped with filter fabric to a height of two-thirds the height of the wall; 20. That all retaining walls shall be backfilled and compacted to at least 90 percent relative compaction; 21. That all retaining walls shall be waterproofed, 22. That the project shall be required to meet all the requirements, including seismic standards, of the California Building and Fire Codes, 2001 Edition, as amended by the City of Burlingame, for structural stability; an the construction plans and design shall be approved by the Building Department and all necessary permits issued before any grading, tree removal or construction occurs on the site; 23. That the applicant shall connect with the existing 3 inch screwed steel water line on Adeline Drive for the domestic water supply for the new single family dwelling, in accordance with the City ofBurlingame Public Works standards; 24. That the applicant shall use the swimmingpool on -site for the water supply for the residential fire sprinkler system, with a suction pump that willpoweredfrom the main electrical service, and will also be connected to the back up generator, all system details shall be reviewed and approved to be in accordance with standards acceptable to the City of Burlingame's Fire Marshal prior to issuance of a building permit; 25. That the applicant shall submit an erosion and sedimentation control plan describing BMPs (Best Management Practices) to be used to prevent soil, dirt and debris from entering the storm drain system; the plan shall include a siteplan showing theproperty lines, existing andproposed topography andslope; areas Mitigated Negative Declaration, Design Review, and Special Permit 2838 Adeline Drive to be disturbed, locations of cutTiill and soil storage/disposal areas; areas with existing vegetation to be protected; existing andproposed drainagepatterns andstructures; watercourse or sensitive areas on -site or immediately downstream of a project; and designated construction access routes, Staging areas and washout areas; this plan must be approved by the City Engineer, Public Works Department prior to any grading or construction work on the site; 26. That the erosion and sedimentation control plans should include notes, specifications, and/or attachments describing the construction operation and maintenance of erosion and sediment control measures, including inspection frequency; methods and schedule for grading, excavation, filling clearing of vegetative cover and mulch, including methods and schedules for planting and fertilization; and provisions for temporary and permanent irrigation; 27. That off -site runoff shall be diverted around the construction site and all on -site runoff shall be diverted around exposed construction areas; 28. That methods andprocedures such as sediment basins or traps, earthen dikes or berms, silt fences, straw bale dikes, check dams storm drain inletprotection soil blanket or mats, and covers for soil stockpiles to stabilize denuded areas shall be installed to maintain temporary erosion controls and sediment control continuously until permanent erosion controls have been established, 29. That all construction materials and waste, including solid wastes, paints, concrete, petroleum products, chemicals, wash water or sediment, shall be stored, handled and disposed of properly to prevent the discharge of all potential pollutants into stormwater; 30. That no vehicles or equipment shall be cleaned, fueled or maintained on -site, except in designed areas which runoff is contained and treated; 31. That dust control should be implemented where required duringgrading, which includes spraying cut areas where there is significant particulate matter created by soil disturbance; 32. That within 24 hours after cutting down the Eucalyptus trees on the site, the stumps shall be ground; 33. That the site shall be terraced, either permanently or temporarily, immediately after the removal of the trees on this site and no later than 4 weeks, after cutting the trees to prevent erosion and soil instability on the slope; 34. That the root zones of Oak trees to remain on -site shall be covered with 4 inches of mulch, and then covered with a layer of plywood to reduce soil compaction around the tree; 35. That the trunks of the Oak trees shall be wrapped with wooden planks with highly visible orange netting wrapped around the planks to attached them to the trunk, no nails or screws shall be used for attachment; 36. That low limbs, identified and marked by a licensed arborist, that will be in the way of construction traffic shall be trimmed as directed by a licensed arborist prior to construction to avoid having them ripped off by construction vehicles; 37. That all clearing limits, easements, setbacks, sensitive or critical areas, buffer zones trees, and drainage 0 Mitigated Negative Declaration, Design Review, and Special Permit 2838 Adeline Drive courses are clearly delineated with field markers or fencing installed under the supervision of a licensed arborist and inspected by the City Arborist; and that adjacent properties and undisturbed areas shall be protected from construction impacts with vegetative buffer strips, sediment barriers or filters, dikes or mulching as designed by and installed with the supervision of a licensed arborist to standards approved by the City Arborist; 38. That all of tree protection measures shall be taken prior to beginning any tree removal activities, grading or construction on the site; 39. That a licensed arborist, hired by the applicant, shall inspect the construction site once a week or more frequently if necessary and certify in writing to the City Arborist and Planning Department that all tree protection measures are in place and requirements are being met; 40. That in accordance with the City's Reforestation Ordinance a reforestation program for this site shall include planting the following 24 " box size trees: 3 Japanese Maples, 5 Southern Magnolias,13 CoastLive Oaks, 7 Swampmyrtles, 6 Western Redbuds, 6 Strawberry Trees, I Jacaranda, 4 Pittosporum Undulatum and 16 Tree Ferns at the locations shown on the approved landscape plan prior to scheduling the final inspection; 41. That a licensed arborist shall provide a post -construction maintenance program to theproperty owners with instructions on how to maintain them and identify warning signs ofpoor tree health; theproperty owners shall be responsible for the maintenance of the trees for 3 years after construction is finalled by the City and shall bear the penaltyfee should the trees not survive the 3-year period; the trees shall be inspected for compliance twice a year by the City Arborist during the 3 year period; 42. That drilling ofpiers shall be limited to Monday through Saturday 8: 00 a.m. to 4: 00 p.m., with no drilling on Sundays or Holidays. All other construction shall be done in accordance with the California Building Code requirements as amended by the City of Burlingame, and limits to hours of construction imposed by the City of Burlingame Municipal Code, 7:00 a.m. and 7:00p.m. on weekdays, 9:00a.m. and 6:00p.m. on Saturdays and 10:00 a.m. to 6: 00 p.m. on Sundays and holidays; 43. That the applicant is shall construct a minimum paved turnout of 20' wide by 40' deep at the top of the driveway to provide parking for afire truck on -site; 44. That the applicant shall construct a staircase to code standards from the turnout at the top of the driveway to the lower driveway to allow direct pedestrian access to the structure for emergency response personnel; 45. That the staircase from the turnout at the driveway entrance to the lower driveway shall be lighted from dusk to dawn daily for safe passage; 46. That the contractor shall submit the "Recycling and Waste Reduction "form to the building department to be approved by the ChiefBuilding Official that demonstrates how that 60percent of the total waste tonnage generated from project construction shall be diverted from the waste stream and theproperty owner shall be responsible for the implementation of this plan; 47. All runoff created during construction and future discharge from the site will be required to meet National Pollution Discharge Elimination System (NPDES) standards; 10 Mitigated Negative Declaration, Design Review, and Special Permit 2838 Adeline Drive 48. That this project shall comply with Ordinance No. 1477, Exterior Illumination Ordinance; 49. That the applicant shall provided landscaping on the site as shown on the plans approved by the Planning Commission. All shall be drip irrigated and installedprior to scheduling the final building inspection; 50. That the project shall obtain Planning Commission design review approval before any tree removal, grading or construction takes place on the site; 51. That should any cultural resources be discovered during construction, all workshall be halted until they are fully investigated by a professional accepted as qualified by the City Planner and the recommendations of the expert have been executed to the satisfaction of the City; and 52. That if the applicant finds it necessary to access the subject propertyfrom the Sisters of Mercy trail, the applicant shall be responsible for repairing any damage to the trail. Catherine Barber Planner c. Michael Gaul, applicant/property owner/designer 11 ROUTING FORM E 2nd review DATE: April 29, 2003 TO: _City Engineer Chief Building Official Fire Marshal Recycling Specialist _City Arborist _City Attorney FROM: Planning Staff SUBJECT: Request for design review, environmental review and special permit for an attached garage for an new single family dwelling at 2838 Adeline Drive, zoned R-1: APN: 027-091-080. STAFF REVIEW: Monday, May 5, 2003 Flaw 1' ��1 �' ► ( i� U u�ySi1G - Reviewed By: c' ate of Comments: 3oG ROUTING FORM DATE: April 2, 2003 TO: _City Engineer Chief Building Official ZFire Marshal Recycling Specialist _Sr. Landscape Inspector _City Attorney FROM: Planning Staff SUBJECT: Request for design review, environmental review and special permit for an attached garage for a new single family dwelling at 2838 Adeline Drive, zoned R-1, APN: 027-091-080. J1AVP KhV1bW: Monday, April'/, IUUJ Reviewed By: /�'/_�� Date of Comments: ROUTING FORM 2nd review DATE: April 29, 2003 TO: City Engineer _Chief Building Official Fire Marshal _Recycling Specialist City Arborist City Attorney FROM: Planning Staff SUBJECT: Request for design review, environmental review and special permit for an attached garage for an new single family dwelling at 2838 Adeline Drive, zoned R-1: APN: 027-091-080. STAFF REVIEW: Monday, May 5, 2003 ti.diJ /y ''i Ci(O /Y// iZ--C C--6.rp9-'.-Wj /p-cGe'Lo "- 4. '. Y . Reviewed By: h d XYe Z2,- Date of Comments: � .J ..1 ROUTING FORM DATE: April 2, 2003 TO: l/ City Engineer _Chief Building Official Fire Marshal Recycling Specialist _Sr. Landscape Inspector _City Attorney FROM: Planning Staff SUBJECT: Request for design review, environmental review and special permit for an attached garage for a new single family dwelling at 2838 Adeline Drive, zoned R-1, APN: 027-091-080. S l Akk Kh V I W: Monday, April'(, 2003 a -10 � t7w, s , A Reviewed By: Vy . Date of Comments: PUBLIC WORKS DEPARTMENT ENGINEERING DIVISION PLANNING REVIEW COMMENTS AOV 5�� Project Name: tr� J);yAa-W4- Project Address:_ The following requirements apply to the project 1_ A property boundary survey shall be preformed by a licensed land surveyor. The survey shall show all property lines, property corners, easements, topographical features and utilities. (Required prior to the building permit issuance.) 2 _�� The site and roof drainage shall be shown on plans and should be made to drain towards the Frontage Street. (Required prior to the building permit issuance.) 3. The applicant shall submit project grading and drainage plans for approval prior to the issuance of a Building permit. 4 The project site is in a flood zone, the project shall comply with the City's flood zone requirements. 5 A� 'tary sewer lateral M is required for the project in accordance with the City's standards. (Required prior to the building permit issuance.) 6. The project plans shall show the required Bayfront Bike/Pedestrian trail and necessary public access improvements as required by San Francisco Bay Conservation and Development Commission. 7. Sanitary sewer analysis is required for the project. The sewer analysis shall identify the project's impact to the City's sewer system and any sewer pump stations and identify mitigation, -,-.;:sures. 8 Submit traffic trip generation analysis for the project. 9. Submit a traffic impact study for the project. The traffic study should identify the project generated impacts and recommend mitigation measures to be adopted by the project to be approved by the City Engineer. 10. The project shall file a parcel map with the Public Works Engineering Division. The parcel map shall show all existing property lines, easements, monuments, and new property and lot lines proposed by the map. Pagel of 3 UAprivate development\PLANNING REVIEW COMMENTS.doc PUBLIC WORKS DEPARTMENT ENGINEERING DIVISION 11. A latest preliminary title report of the subject parcel of land shall be submitted to the Public Works Engineering Division with the parcel map for reviews. 12. Map closure/lot closure calculations shall be submitted with the parcel map. 13 The project shall submit a condominium map to the Engineering Divisions in accordance with the requirements of the Subdivision Map Act. 14 _� The project shall, at its own cost, design and construct frontage public improvements including curb, gutter, sidewalk and other necessary appurtenant work. 15 The project shall, at its own cost, design and construct frontage streetscape improvements including sidewalk, curb, gutters, parking meters and poles, trees, and streetlights in accordance with streetscape master plan. 16 By the preliminary review of plans, it appears that the project may cause adverse impacts during construction to vehicular traffic, pedestrian traffic and public on street parking. The project shall identify these impacts and provide mitigation measure acceptable to the City. 17 The project shall submit hydrologic calculations from a registered civil engineer for the proposed creek enclosure. The hydraulic calculations must show that the proposed creek enclosure doesn't cause any adverse impact to both upstream and downstream properties. The hydrologic calculations shall accompany a site map showing the area of the 100-year flood and existing improvements with proposed improvements. 18 Any work within the drainage area, creek, or creek banks requires a State ► __ - �__ Department of Fish and Game Permit and Army Corps of Engineers f Permits. 19 No construction debris shall be allowed into the creek. 20 V The project shall comply with the City's NPDES permit requirement to prevent storm water pollution. 21 The project does not show the dimensions of existing driveways, re- submit plans with driveway dimensions. Also clarify if the project is proposing to widen the driveway. Any widening of the driveway is subject to City Engineer's approval. 22 The plans do not indicate the slope of the driveway, re -submit plans showing the driveway profile with elevations, 111,yifa , �L 3 UAprivate developmentTLANNING REVIEW COMMENTS.doc ' PUBLIC WORKS DEPARTMENT ENGINEERING DIVISION 23 The back of the driveway/sidewalk approach shall be at least 12" above the flow line of the frontage curb in the street to prevent overflow of storm water from the street into private property. 24. For the takeout service, a garbage receptacle shall be placed in front. The sidewalk fronting the store shall be kept clean 20' from each side of the property. 25. For commercial projects a designated garbage bin space and cleaning area shall be located inside the building. A drain connecting the garbage area to the Sanitary Sewer System is required. Page 3 of 3 UAprivate development\PLANNING REVIEW COMMENTS.doc ROUTING FORM ;oi'-•.SsN?N.'4 �k— r`S" �iVv; _ :.$"�_ - '^��r_TP.N. DATE: April 2, 2003 TO: _City Engineer _Chief Building Official Fire Marshal Recycling Specialist 7Sr. Landscape Inspector _City Attorney FROM: Planning Staff SUBJECT: Request for design review, environmental review and special permit for an attached garage for a new single family dwelling at 2838 Adeline Drive, zoned R-1, APN: 027.091-080. Sl Ater M V IE W : Monday, April 7, 2003 2 E7 Ke sct -Tcl E S 12 E -%r,y-r f].tc" 5' ac ;:5 S O j2gQA_/Jcj5r-trx-7- % _v�cr —S ct4-F Reviewed By: Date of Comments: City of Burlingame Planning Department 501 Primrose Road P(650) 558-7250 F(650) 696-3790 www.burlingame.org gaCITY G� I r !E APPLICATION TO THE PLANNING COMMISSION P. Type of application: Design Review Conditional Use Permit Variance Special Permit Other Parcel Number: Project address: 2-9)3 b AVET t t.Jlr APPLICANT PROPERTY OWNER Name: M 1 G H,,A� —L C-Art,Z l— Name: C—c,k C-- Address:_ 1237 L AL-[ ► /N -A\lE Address: 123-7 L&d ,4_oiA Avg City/State/Zip: t)u e-t-►NLA.IC q gt010 City/State/Zip: S u 9-L,t ► L,� 'r-? -to 1 C9 Phone (w):&5- S44 110344 Phone (w): Co s YJ 3 4 L� t (03 L4 (h): (4'Q 3� I bit Z (h): coY(D 3 -" u 1 b'l 2 (fl:&SO 344 01 ei7 (f): & ,� 3 4 4 eo c :,7 ARCHITECT/DESIGNER Ge (I &W (o76 ZZqS Name: 4\S A.Ii�,PuC rsi Address: City/State/Zip: Phone (w): (h): (fl: Please indicate with an asterisk * the contact person for this project. RECEIVE H R - 1 2003 CITY OF BURLINGAME PLANNING DEPT. PROJECT DESCRIPTION: &jFFW FA� (�--y-4ov-ft AFFADAVIT/SIGNATURE: I hereby certify under penalty of perjury that the information given herein is true and coR,,ct to the fiest of m 1 ge and belief. Applicant's signatu Date: O D l Z) I know about the proposed application and hereby authorize the above applicant to submit this application to the Planning Co ission. Property owner's signa Date: 04 O 103 Date submitted:/) 4 6 (0_ PCAPP.FRM i C of Buriingame Palming DeparumW 50i Primrosc Road P(650) 55a-7Z5u r(M) oyo 01yu www.vu. u .� CEIVEU C 2 9 Z003 Of BURLINGAME r6ANNING DEPT. The Planning Commission is required by law to make findings as defined by the City's Ordinance (Code Section 25.50). Your answers to the following questions can assist the Planning Commission in making the decision as to whether the findings can be made for your request. Please We or write neatly in ink. Refer to the back of this form for assistance with these questions. L ,Explain why the blend of mass, scale and dominant structural characteristics of the new construction or addition are consistent with the existing structure's design and with the testing street and neighborhood Pv%c� Szezrc zc t.Qc t-1 !� krz=P�.�/6 -: •✓r�'�d jrt� S[ A�c-� j�?�.� OV, v"72 .cfrh rj ct sal -�cl csr-u✓'0 /.Nv(� 7E/�3 �itcctJ�� fE Az iAC��i� (,.p,2,A s !%t" ,tS r5/�✓ OF zt/�S SZ�Ct tce � - C-U. off lt? WtIC 1-YOct.J'6- GVi FEi /-);r 144z G 2. Explain how the variety of roof lineofacade, exterior finish materials and elevations of the proposed new structure or addition are consistent with the existing structure, street and neighborhood. �Nz--s �Jt`S!�/✓ /s iN(onJ�/STc�v'7" w��/� ��' .5��'�►za../�� «C� �'[ fI j� /cG -S! - /!}z-LS /jit.lU Si ;2� �.G �cs C l I �C /�%9fJ �•v r 7 If-71V'47z- y' AAO ACC4-1<-4E"C ue-4c-Oc3i('/✓ rS ,q C L4 si < !J CSl6,./ S 4r-tD .d 4Z[O,,/t 3. How will the proposed project be consistent with the residential design guidelines adopted by the city (CS. 25.57)? 'lam lAeoJEz-7- <,S c vd r.'�/ 47- C • 7" 6tz,,, z e,./46 /i> r. ems: ,4 . P %��-L-/f7' G�/t-t/Zii7.o�S" Sc�-t ��-c-�=$ , 'Tf�u-`i��:14�H�:�fc� �-�1r�:1 •�1�/' %2C�Z- AZc-W 7ZVz%Gt4ie- G� �. �t-zc 1�- � !�`%L ` �i✓.a-��Iy = r� fir✓. �089�5�y/,)1,z7'UV`7'ifc7 r�Gs/tom T �S�2.tc<—clr 4. Explain how the removal of any trees located within the footprint of any new structure or addition is necessary and is consistent with the city's reforestation requirements. What mitigation is proposed for the removal of any trees? Explain why this mitigation is appropriate. %�fz✓" -72,--46 ZO 6C7 hIMFma ✓�� n 1 of e-�ri� 7� ice/ � erg M•�tze,e z�.- srECPEUAMM Cr?y ,*e4o'ecir - cl/�%/ t -mac �'��SO n� its � Qlt�-'t= P�-�9t✓, �%vt'"�. %� i/'•-t-Zt3 �v �cs �2c�•s'YIC�'�G� +q'�'�-�= G'zC G��--`1''/� �'iljc'�ic:N' -?"o i A�t,- �F'/'�U jC. ZEi � Ec:E�' . A2G C3P,&-1� �ZCCt Y/?ZiJ /N • i= A�"�7� if 1�/� <3�z:/•✓ �cy'vl�✓ f��tt� �Ik-ii _ 0 1 %WoS csh ' � / /fijoP,P !� /t��zv�D9a�'97�/1l ,,a 4 .In lo✓szc- 4s yoo Sim Ass %ENO •�u�u�S' RECEIVED DEC 2 9 2003 CITY OF BURLINGAME PLANNING DEPT. �% (), �Q�ao Maguire C e TREE CARE EVALUATION REPORT AND REQUEST FOR REMOVAL ON EUCALYPTUS GLOBULUS ;Preparedp by ' RECEIVED Paul Maguire: Certified`Arborist #5204 APR - 1 2003 1003 Folkstone Ave. San Mateo, CA 94402 CITY OF BURLINGAME PLANNING DEPT. 3/26/2003 CERTIFIED pt�ORq�J M, ARRORIST 49B�RIC��`J 1003 Folkston Avenue, San Mateo, CA 94402.650-574-0215 Fax:650458-8535 • www.MaguireTreeCare.com �000� M a g wire = TREE CARE SUMMARY Maguire Tree Care was contacted by the Gaul's to provide a written Arborist report required by the City of Burlingame in association of the removal of 15 mature Blue Gum Eucalyptus trees which reside at 2838 Adeline Dr. This report will include observations made on my site visit, reasons why removal would be beneficial, health of remaining trees on site, protection measures to be taken on remaining trees and a reforestation program. OBSERVATIONS Site Description: The stand of trees is located on the downhill side of Adeline Dr. as you head down into Burlingame. The_trees reside on,a sloping hillside, which in my. observations faces north east. The trees. are ;located on,a vacant lot with dresidence flanking each side. There. is. a, large concentration` of trees, most of which areBlue Gum Eucalyptus, as well as Coast + Live Oaks, California Bay'Laurel and Acacia: The setting of the lot is what one might encounter }while�walkingthrough a wild forest. ; Removal Request: The Gaul's would;like to remove all of the:Eucalyptus on,the property, most notably the large trees",that would be in the •vicinity of the, proposed home. to be built. There 'is a very long list of reasons why these,irees should be removed. First'and foremost, the trees are .in the area which will infringe on the'construction of the home. These trees are anon native species widely regarded,:as a weed tree from ,Australia. These trees serve a purpose, such as a windbreak or screen barrier Jn the setting that they are in, they are providing neither. The age and size of�these rees make them a poor choice as a landscape tree around a residential property:' Blue Gum tend to shed limbs during high winds, and a limb falling from 80-100' above is not a desirable feature to have CERTIFIED ��S xWQ�i r ARRORIST �9BdNlit��1J 1003 Folkston Avenue, San Mateo, CA 94402 •650-574-0215 Fax:650-458-8535 • www.MaguireTreeCare.com N oil D0 ftw os; Maguire � TREE CARE surrounding a home. El Camino Real in Burlingame is a classic example of wrong trees in the wrong spot. The Gaul's would prefer this mistake not be made on their home residence. The Blue Gum tree is also being killed off by an insect known as the Lerp Phsyllid. As one can imagine, these trees would be extremely costly to be removed once a home is constructed on the site. Blue Gum is a very, very oily tree, which can possess an extreme fire danger in the event of a fire breakout. A site in Woodside had this happen recently due to the concentrated number of Blue Gum. Lastly, these trees are overshadowing many desirable, native Coast Live Oaks. These are the important trees and the trees that should be preserved. Health and protection measures of,trees to remain: I am going to address only the Cost Live Oaks. During the construction phase, the root zones of these trees should be coveredmith 4" of mulch,as well as a layer of plywood. This is to be done to reduce soil; compaction around these trees. The trunks of the trees should be protected by wrapping themwith wooden planks.. The wooden planks shall be, attached by using high visibility; orange mesh. No nails or screws to be used at all.. The reason for wrapping the trunks in wood is to protect them from mechanical damage. ' If any low limbs will be in the way of construction traffic, it would be Ibest to remove the limbs in advance versus having them torn from the tree and ripping down the trunk.: The. _ overall health'.ofthe Oaks'I looked at seemed to be good., These trees;would bene it from ` a structural pruning and a lowering of the soil grade at the root collar. This work cari take place before or after.construction. Reforestation program: Once the Blue Gum'treeshave been removed many'more trees should be planted. The trees that are planted should be carefully. chosen for the location in which they will reside in. A watering program needsto be established before planting of the trees to supply the young trees with proper, irrigation The- young trees should be managed and trained early on to maintain a healthy structure and natural :form. I cannot stress enough the cfnnnan p�MAI •aaoRisr 49BOBIC�� 1003 Folkstone Avenue, San Mateo, CA 94402 •650-574-0215 Fax:650-458-8535 • www.MaguireTreeCare.com Maguire TREE CARE importance of training young trees for structure and form. More trees head down a path of decline because they have not been cared for while young. RECOMMMENDATIONS I recommend that all of the Eucalyptus trees be removed and replaced with a more appropriate species of tree. a 1003 Folkston Avenue, San Mateo, CA 94402 •650-574-0215 Fax:650-458-8535 • www.MaguireTreeCare.com FFRTITIEO pt\ONIi(�. ►RRORIST 498UBIC�� 1• 1003 Folkston Avenue, San Mateo, CA 94402 •650-574-0215 Fax:650-458-8535 • www.MaguireTreeCare.com FFRTITIEO pt\ONIi(�. ►RRORIST 498UBIC�� 1• City of Burlingame Planning Commission Minutes May 27, 2003 13. 2838 ADELINE DRIVE, ZONED R-1— ENVIRONMENTAL SCOPING FOR AN APPLICATION FOR DESIGN REVIEW AND SPECIAL PERMIT FOR AN ATTACHED GARAGE FOR A NEW TWO-STORY, SINGLE FAMILY DWELLING ON A LOT WITH A SLOPE GREATER THAN 10% (MICHAEL GAUL, APPLICANT, PROPERTY OWNER, DESIGNER) (24 NOTICED) PROJECT PLANNER: CATHERINE BARBER CP Monroe briefly presented the project description. Commission asked about the drainage on the site. SE Monaghan explained that the sewer would be required to be brought up to the level of the street at Adeline Drive, but that the surface stormwater run-off was allowed to drain down the site and because of the configuration of the neighbor's driveway, the run-off would be directed to a culvert under the Sister's of Mercy property. The Commission asked for clarification of the safety ramifications of the proposed 18% slope on the driveway. The SE commented that any driveway slope beyond 20% must be approved by the Planning Commission, the proposed slope is less then 20%, but still not accessible to a fire truck so the applicant is required to install fire sprinklers in the attic of the dwelling, any steepening of the slope on the driveway would not additionally impact fire access on the site; Commission needs to determine if the proposed slope is appropriate and practical for private access to the building area on site. Commission noted that the following concerns should be addressed in the environmental document: • evaluate a detailed erosion plan, including monitoring, for the grading of the site for the building pad and for the driveway; • the landscape plan should be evaluated for erosion control measures; • will the stumps of the removed eucalyptus trees be ground; if not how will they be treated; • the affect the removal of the eucalyptus trees will have on the views from surrounding properties; • the Sister's of Mercy have a trail on their property that they allow the public to use, how will the proposed development, and in particular the rear elevation of the house, rear property line fence and the landscaping, impact the views from the trail; • what tree protection measures are needed for the trees that will remain on the site; and • what is the proposed design and engineering required for the driveway, will there be retaining walls and how high will they be, will the height of the walls be sufficient to prevent runoff and soil erosion onto the roots of the remaining trees on the site. Commission also asked that staff or the applicant address the following issues on the plans and in the processing of the application: story poles should be erected at the time the design of the house is finalized; does the lower floor plan meet the 10% ventilation requirement; and clarify on the plans exactly which trees will remain on the site. Chair Bojues opened the public comment. Michael Gaul, applicant and owner, was present to answer questions. He explained to the Commission that he is proposing to remove the Eucalyptus trees so that he can develop the site, but the neighbors are in full support of removing the trees because of the potential fire hazard. He intends to reforest the site with native species such as Coast Live Oak. He commented that he would prefer to increase the slope of the driveway beyond 20% because that would allow the house to be built closer to the front of the property at Adeline Drive and thereby increasing the privacy on the site, as well as reducing the impact of the house on the trail on the Sister's of Mercy property. He noted that the exact number of trees to be removed will be determined by the engineering for the driveway and the plans will be revised accordingly. There were no other comments from the floor and the public hearing was closed. The Planning Commission referred this item to a study calendar at a time when the revisions were made to the plans and the environmental document has been prepared. The Planning Commission's action is advisory and not appealable. This item concluded at 11:35 p.m. 18 Michael Gaul PO Box 1617 Burlingame, Ca 94010 ph 650 344-1634 fax 650 344-0187 December 29, 2003 Re: Planning Department comments dated 12/15/03 for 2838 Adeline Drive The following are responses to your comments as listed in your fax dated 12/15/03 -Included are existing photos of the site from the three locations previously listed on the Landscape Plan. Attached to these photos is a written explaination of the photos provided for each location. -Where trees of non-native species (i.e. eucalyptus, acacia) are to be removed, the stumps will be ground. Where trees to be removed are native(i.e. coastal or live oak) the stumps will be left in the ground in hopes of regrowth. -The area of concern for slope stability in grading would be in the area of the front of the lot where the driveway will be constructed. According to the driveway plan, grading plan and landscape plan, the retaining walls to support the driveway will remove none of the larger trees which would contribute to the slope stability. In fact, the driveway retaining walls will increase the slope stability rather than destabilize it based on their location working around the trees and the nature of a retaining wall designed to support the hillside. The large Eucalyptus trees on the site will be remove after the driveway is in place both for cost measures and to provide the desired stability of the slope. The Soils report clearly states on page 6, that temporary shoring will be used to stabilize the hillside during the excavation. Further, on page 2 of the Soils Report, this area is defined as a stable to moderately stable area. The construction and excavation drawings will clearly indicate the extent to which these prevention measures will be administered. -A flow test was conducted on Tuesday December 23 by the Burlingame Fire Department. On May 27, 2003 a meeting was convened with members of the Fire Department, Planning Department and Public Works. At this meeting the issue of a flow test was brought up and I was told to put a flow meter on my neighbors hose bib. I of course balked at this as in inaccurate measure of the water pressure. I asked for objections to putting a water meter on the property to measure flow, to which there were none. I have been to Public Works who sent me to Building, who sent me to the Water Dept who sent me back to Building who told me to talk to Public Works. I was never told until a December 12 response letter that I could pay $76 and have the Fire Department conduct a Flow test from their hydrants. I have since spoken with my fire sprinkler contractor and concluded that the best possible solution for my situation will be to install a 1000 gallon tank with a pump which will have adequate capacity for the fire sprinkler system. This system will allow the main water service to supply only the domestic water demand. Calculations for the water demand and a comparison for these demands versus the available supply are forthcoming. -Please find attached the completed application for the Special Permit. RECEIVED DEC 2 9 2003 CITY OF BURLINGAME PLANNING DEPT. If you have any questions, comments or concerns please contact me immediately on my cell phone at 650 678-2295 or my office at 650 344-1634. 1 intend to have this project underway as soon as possible and would appreciate your prompt response to any or all of my comments. RECEIVED D E C 2 9 2003 CITY OF BURLINGAME PLANNING DEPT. Michael Gaul PO Box 1617 Burlingame, Ca 94010 ph 650 344-1634 fax 650 344-0187 Catherine Barber Burlingame Planning 501 Primrose Road Burlingame, Ca January 13, 2003 Re: Fire sprinkler supply for 2838 Adeline Drive, Burlingame It is our intention to have our fire sprinkler water supplied by using the swimming pool as the water storage tank. This option has been discussed and agreed upon by myself, my fire sprinkler contractor JFK Fire Protection and the Fire Inspector for the City of Burlingame. The pool as shown in the Site Plan will have approximately 36,000 gallons of water when filled. The approximate amount of water storage required by the City Fire Inspector is 3600 gallons. The fire sprinkler system will be fed from the pool by a suction pump manufactured by A-C Fire Pump Systems. The pump size will be determined when the fire sprinkler system is designed. The system will be powered from the main electric service at the house and will be backed up by a generator in case of a power outage. W Michael Gaul PO Box 1617 Burlingame, Ca 94010 ph 650 344-1634 fax 650 344-0187 Burlingame Planning Commissioners 501 Primrose Road Burlingame, Ca 94010 February 4, 2004 Dear Planning Commision, COMAfUNICATION RECEIVED .iYTEP. PREP.IP'lT I011 OF STAFFP.EPOt 2' RECEIVED FEB - 5 2004 CITY OF BURLINGAME PLANNING DEPT. I would like to submit for your review prior to the meeting on Monday February 9 the following items. First, a letter from the Sisters of Mercy expressing their endorsement of the plans submitted for for the construction of our home on the property located at 2838 Adeline Drive. During the meeting on May 27, 2003, a concern was raised for the view from the trail used by the public on the private property owned by the Sisters of Mercy. At that time, the City Attorney pointed out that the view would be the concern solely of the property owner. I hope that this letter will suffice. Secondly, I am sure that the planning Commisioners are aware that this parcel, though within the boundaries of the City of Burlingame, is completely surrounded by parcels within the County of San Mateo. These properties find themselves under a different set of guidelines for design and construction. These parcels are allowed two dwelling units with an additional accessory structure. There is no design review, declining height envelope, daylight plane requirement or standardized maximum floor area. The parcel to the south is approximately 21,308 sq ft. The maximum footprint is 30% or 6392 sq. ft. The maximum height is three stories or 6392 sq ft x 3 for a total of 19,177 sq ft. The parcel to the north is approximatly 35,719 sq ft. The maximum footprint is 25% or 8929 sq ft. The maximum height is three stories or 8929 sq ft x 3 for a total of 26,787 sq ft. Our proposed home is 7800 sq ft. Compared to typical lots of 6000 sq ft, this may seem like a large home. However, our lot is more than four times the size of these standard lots. We purchased this piece of property with the intention of building a home to accommodate our family of six. I am a General Contractor and Architect and will operate my off site operations from this location. My wife Donna is a career artist with a requirement for a studio which is included in this design. Additionally, our third child is disabled. He, along with many of his friends, is confined to a wheelchair for long periods of time. Therefor we have designed the hallways to be wide enough for two wheelchairs, the bathrooms to be handicap accessible, and movement from floor to floor by elevator access. Additionally, we intend our house to be used by ourselves and other children as an alternative location for hands on therapy with massage therapists, theraputic swimming and physical therapy. 1 look forward to our meeting on Monday February 9 and discussing this project with you. If you have any questions or concerns which you would like to discuss, or would benefit from additional information which I can provide, please do not hesitate to call or fax me at any time as I am very anxious to move forward with this home. Sincerely, Michael Gaul Sisters of Mercy of the Americas Hermanas de la Misericordia de las Americas November 13, 2003 Burlingame Planning Commission City of Burlingame To Whom It Concerns, Regional Connnunity of Burlingame The Sisters of Mercy own property immediately adjacent to the future home site (on Adeline Drive in Burlingame) of Mike and Donna Gaul. Mr. and Mrs. Gaul have discussed at length with the Sisters of Mercy both their house and landscaping plans. They have also provided us with digital images as to what we can expect to see from our property once this project is complete. We are very pleased with the plans the Gaul's have made and support them moving forward. We will welcome them as neighbors and anticipate the development of their lot and home as a very positive asset to, and enhancement of, our property and the neighborhood. We deeply appreciate the consideration shown to the Sisters of Mercy by Mr. and Mrs. Gaul in sharing their plans and wish them great success. Sincerely, Jeffrey G. Snyder Campus Executive Director Sisters of Mercy Administration 2300 Adeline Drive Burlingame, CA 94010-5599 (650) 340-7410 Fax (650) 347-2550 i o • r �;_ � Q 7•c = � � a 14 09112 16 o. /C O 1 7 I 6 .0y,� 10c; .• I .aa MR5 ?q�` 312 O I O 5 It ~� /3 \ \ ��o qt5 k►29 Sad rE etc oe�� 56�2`6 •s`� *175 Atli f20 7s Sol"3l E 3 B Iad aF `zeR 75 ?►�9 R was R.05 ;qa, . S.G2' R'i25 ADkA 5�7a' ;too // eu 0M. 5 40 r h � � � \ /5 ♦' /4 O O � ?8 P2 4 14. T ' L� PARCEL x° /3 ti o A M . 000 lost.. poyA :aa53 ; r; h V58 0S 37-W 7 PARCEL ® ,n ..: too ift � d---- °5 LAN Bar •• 477 .less Fy �;� r•1 TR 'REDI Nationwide' 1— 800 345 — 7334 "i 7 ASSESSORS PARCEL NUMBER OWNERS NAME THOMAS BROS.'LAND - USE/PROPERTY•CLASS VERIFIED SALES SALE AMOUNT . Rai im d TOTAL VALUE -TV AREA MAILING ADDRESS TRACT MAP NUMBER LOT SIZE / ACRES"/,SQFT STATISTICAL INFORMATIION AMOUNT DATE TYPE DATE LAND VALUE-LV NPROPERTY LOCATION REC BK-PG DEC NUMBER IMPRV VALUE -IV LEGAL DESCRIPTION INFORMAE TOTAL TAXES/YR ------------------ --- ----------- ----- - - '------------------- TYPORTGAGE ITAMOUNT 027-091-070 054-004 LUCERO LAWRENCE D 8 F B A /TR 6050.00 28-D2 ----- 01 1 FAMILY.RESIDENCE ZONING-R10006 --$458------ ------------------------- 000 ORTD-08/31/90 ------ $795,-000-TV 2836 ADELINE DR BURLINOAME`CA 94010-3901 90 X 237 _ .469-ACRES GROSS SQFT - 16/81 90-0117233 PRIORI 03971500-LV $397 500-IV PHONE 0(650)-579-2810 16,000�;;2,13r� LIVING SQFT -3 080 g $795 GOOF ORTD $7,625.80-96 N2836 ADELINE DR BURLINGAME CA 94010-5901 GARAGE SQFT -6�0 10/I27/88 88-0144890 98.98 FT X 82.10 FT F i R MEAS BLOCK 5 ,tin WLY PTN OF LOT 11 YRBLT- 1978 ROOMS- 9 EXEMPTION -HOMEOWNERS HILLS 2 RSM 14/18 19 STORIES- 2.0 BEDRMS- 4 N IMPROVEMENT INFORMATION N FIREPLACE- 4 BATHS- 2.50 3-CAR HEAT - COOL - WATER- SEWER- FUEL - GARAGE STYLE- HIGH -RANCH FORCED AIR UNIT ROOF - WOOD SHAKE CENTRAL.AC EXTWL- WOOD SIDING PUBLIC FLOOR- CARPET 8 WOOD PUBLIC FOUND- CRAWL/RAISED GAS POOLG- SPA TOPO - SLOPE XTRA FEATi LAUNDRY ROOM OPEN DECK/BALCONY OTHER RMSt FAMILY (6• are 3 SRO O ROOM REC ROOM EQUIPMENT: DISPOSAL,DISF(WASHER,WET BAR,SOLAR HEAT ---------------------------------------------------------------- 027-091-080 004-006 SISTERS OF MERCY -------------------------------------------------------------------- 73 COLLEGE 09/24/76 $249079-TV 2500 ADELINE DR 78-OOCOOAI EXEMPTION -WELFARE $24 079-LV $64.46-96 BURLINGAME CA 94010-5 40 112.09 FT X 110.FT F&R MEAS LYING BETWEEN LOTS 11 8 12 BLOCK 5 BURLINGAME HILLS 2 -------------------------------------------------------------- 027-091-090 054-004 N028ARO THOMASADELINDDRTR - ------------------------------------------------------------- O1 -1 FAMILY RESIDENCE ZONING-RIC006 03/01/93 $125,989-TV 46 BURLINGAME CA 94010-3901 .820-ACRES USABLE LND SQFT - 17,250� 93-0052479 EXEMPTION -HOMEOWNERS $39,138-LV $86 851-IV PHONE *(650)-344-5314 YRS W/SAME N 10+ N2846 LIVING SQFT -2 270 $1,7W 22-96 ADELINE DR BURLINGAME CA 94010-5901 BSMT SQFT -9t0 ) LOT 12 BLOCK 5 BURLINGAME HILLS 2 RSM 14/18 19 N IMPROVEMENT INFORMATION N FIN BSMT SQFT-260 GARAGE SQFT -320 COOL - CENTRAL AC YRBLT- 1929 ROOMS- 6 BEDRMS- 3 --- ---- ---- ----------------------- BATHS- 1.50 --------------------------------- 027-091-100 054-004 CAVAGNARO WALTER J 8 LORETTA C ------ ----- ----- ------------------------ 01 -1 FAMILY RESIDENCE ZONING-R10006 ------ ------------------- I1/14/84 84-0122712 5130,380-TV $28,597-LV 2852 ADELINE DR BURLINGAME CA 94010-5901 .723-ACRES USABLE LND SQFT - 10,000 PRIOR: $90 000 $101 783-IV $1,7H PHONE 8(650)-344-4817 YRS W/SAME 8 10+ N2852 ADELINE DR LIVING SQFT 3 250 08/67/73 .30-96 BURLINGAME CA 94010-5901 ADDITION SQFT-4fi0 AG-062660 LOT 13 BLOCK 5 BURLINGAME HILLS 2 RSM 14/18 19 BSMT SQFT -400 EXEMPTION -HOMEOWNERS N IMPROVEMENT INFORMATION N YRBLT- 1949 ROOMS- 7 COOL - CENTRAL AC BEDRMS- 4 BATHS- 3.00 `SAN MATED, CA. N 17 Poos a Grid Reference is Copyrighted by Thomas Bros. Mops (R) _MWRE91 Nationwide 1— NO - 345 — 7334 ASSESSORS PARCEL NUMBER THOMAS BROS LAND USE/PROPERTY. CLASS Cc Ali VI s Rai VERIFIED SALES SALE AMOUNT TOTAL VALUE -TV Maximum coverage Gmitiations shall apply to all structures except structures in Q H, M or P districts in which there are no dwelling facilities. ' See planner for additional requirements including possible floor area ratio (FAR), daylight plane and design review. Side yard setbacks on comer lots shall be 50% of the required front yard setback in the respective district O 40 foot setback on corner W - refer to zoning maps O combined total - both sides, 7.5 feet minimum on any one side © from natural grade O agricutural/non-agricultural development ® combined total - both sides, 5 feet mininwm on any one side ® 20 foot setback on Bay/Ringwood Roads ®15 foot setback allowed on all lots of Enchanted Hills Subdivision as noted on Planning counter maps, Book 38, pages 14,15,17, and Book 41, pages 22 & 23. ® <30% slope (average of parcel) ® Q 5% slope (average of parcel) ®z15%slope (average of parceq Limb Inrn%WrWWa%9n mrwPranm n -- ----- Gaul Residence 2838 Adeline Drive Burlingame, Ca 94010 December 22, 2003 The following digital images provided refer to the property located at 2838 Adeline Drive in Burlingame. Please refer to the location indicated on the digital image to the corresponding location on the Landscape Plan. Refer to the Plant List provided for the sizes and growth rate of the individual plants. Location A The existing photo is taken from the neighboring property. The oaks to remain are shaded by the exisitng eucalyptus trees. The oaks will develop more fully when the eucalyptus are removed. The oak shown to the left at the initial planting will remain. The tree to the right is a new olive tree located inside the driveway turn. It has a moderate growth rate and an average height of approx. 20 ft. All ground covering is new. After 5 years the oak tree and the olive tree should be more full and the ground cover should fill in. Location B The existing photo provided is taken from the ground level. The digital images are from a point further above the ground level to obtain a better view. The existing photo shows some of the eucalyptus trees to be removed. These trees will be in a flat area of the driveway at the lower garage. The initial planting shows several of the Carolina Cherry Laurels to be planted on the property line fence. After 5 years, these trees should fill in as an effective screen as they have a fast growth rate and an average height of approx. 20 ft. Location C The existing photo was taken from the trail on the property owned by the Sisters of Mercy. The eucalyptus trees shown will be removed. Some trees in the foreground are on the neighboring property and will remain. At the initial planting, the new wall will be built with a chain link fence on top. The house will be visible over/through the Waxleaf Privet. However, after approx. 5 years, the newly planted Waxleaf Privet should block most of the view from the trail as this shrub grows at a fast rate to approx. 12 ft tall. Gaul Residence 2838 Adeline Drive Burlingame, Ca November 7, 2003 The following digital images provided refer to the property located at 2838 Adeline Drive in Burlingame. Please refer to the location indicated on the digital image to the corresponding location on the Landscape Plan. Refer to the Plant List provided for the sizes and growth rate of the individual plants on the landscape Plan. PLANT LIST GAUL RE51DENCE 2838 ADELINE DRIVE BURLINGAME, CA 7/ I G/03 rREE5 40. BOTANICAL NAME COMMON NAME 51ZE QTY GROWTH RATE HEIGHT (AVG) A ACER PALMATUM JAPANESE MAPLE TREE 24" BOX 3 SLOW 15' B MAGNOLIA GRANDIFLORA SOUTHERN MAGNOLIA 24" BOX 5 MODERATE 20' C QUERCUS AGRIFOLIA COAST LIVE OAK TREE 24" BOX 7 SLOW 35' D PRUNU5 CAROLINIANA CAROLINA CHERRY LAUREL 24" BOX 10 FAST 20' E CERCI5 OCCIDENTALI5 WESTERN REDBUD 15 GALLON G MODERATE 15' F ARBUTUS MARINA STRAWBERRY TREE 15 GALLON 4 MODERATE 15' G OLEA WIL50NII OLIVE TREE 24" BOX 3 MODERATE 20' H JACARANDA MIM05AFOLIA JACARANDA 24" BOX I MODERATE 20' 1 PITT05PORUM UNDULATUM PITT05PORUM 24" BOX 4 FAST 35' J DICK50NIA ANTARTICA TREE FERN 15 GALLON I G FAST 8' SHRUBS I DODONAEA V15CO5A PURPUREU5 HOP5EED BU51-1 5 GALLON 22 FAST 10' 2 MYRICA CALIFORNICA PACIFIC MYRTLE 5 GALLON 18 FAST 10' 3 LANTANA MONTEVIDEN515 CASCADING LANTANA I GALLON G5 FAST 1' 4 GERANIUM INCANTHUM CRANESBILL I GALLON G5 FAST 1' 5 HYDRANGEA MACROPHYLLA HYDRANGEA 5 GALLON 15 MODERATE 4' G AZALEA 5PP AZALEA 5 GALLON 14 MODERATE 3' 7 PIERE5 JAPONICA MT FIRE JAPANESE PIERE5 5 GALLON 11 MODERATE 4' 8 ARCT05TAPHYLO5 HOWARD MCMINN MANZANITA BUSH I GALLON 30 MODERATE 3' 9 LAVATERA'PINI,' TREE MALLOW 5 GALLON 12 FAST 10' 10 RHODODENDRON 5PP RHODODENDRON 5 GALLON 14 MODERATE 10' I I SALVIA L.EUCANTHA MEXICAN SAGE 5 GALLON 25 FAST 4' 12 LIGU5TRUM JAPONICUM WAXLEAF PRIVET 5 GALLON 30 FAST 12' 13 IRIS DOUGLA5I1 DOUGLAS IRIS I GALLON 40 FAST if 14 ANNUALS ANNUALS 4" POTS .40 MODERATE G" IINES 10. BOTANICAL NAME COMMON NAME 51ZE QTY GROWTH RATE GROWTH RATE '-I FICU5 PUMILA'5TAKED' CREEPING FIG I GALLON 55 MODERATE I' '-2 JASMINUM POLYANTHUM PINK JASMINE 5 GALLON 4 FAST G' '-3 DI5TICTU5 BUCCINATORIA RED TRUMPET VINE 5 GALLON 5 FAST 12' ;ROUNDCOVERS 0. 1130TANICAL NAME COMMON NAME SIZE QTY GROWTH RATE GROWTH RATE ;_I I VINCA MAJOR IPERIWINKLE I GALLON 45 MODERATE G" Location A Existing View Location A Initial Planting Location A Approx. 5 Years After Planting .a 24 41 44 J+ ' All rr ..ate'-+��-�. �+•�v .#�1 At l y�F3 k ��,� �Sr j '.,�' ,. ,'�. �-� yr. � �i ?T 'Yt�•Y:t �:� c�� `{;�,�; h -Mr � y b tw Location C Initial Planting Vzlj wu, t 3y. T}� ,.F 1,-�''. }r-- 4.•.tts,•�• � �% # �l, �yr.,F�- � � a ✓�'yy ,��G��..�' � 'fa'.('' 'r �rffJ•`N_14 r� G �"' ' 'E r - - d't Y ¢• , :� � ^`n �-�� fr ♦ ,.,,,. y J five Cr 9-f� +}� .t S.. _, � � r7. � ✓ � •C,wy r st �' i �'�i'i✓ `/,F�'" t ,{S!r�i 1. � �';A�i,�, ;i �'r Ep,''�'7 rn'�-:,,Prfti . r 4 I �lr � �` ,•• " 4. �, J.. t- _ � �j1 i�y�6 �;` �,., `�; ard}q"^i�3 �' � ',' �'" �. 1 w �L{r,*� ,r �> �. sF "•, �i!%� t, t ` y L City of Burlingame Planning Commission Minutes February 9, 2004 11. 2838 ADELINE DRIVE, ZONED R-1 — APPLICATION FOR A MITIGATED NEGATIVE DECLARATION, DESIGN REVIEW AND SPECIAL PERMIT FOR AN ATTACHED GARAGE FOR A NEW TWO STORY SINGLE FAMILY DWELLING (MICHAEL GAUL, APPLICANT, DESIGNER AND PROPERTY OWNER) (23 NOTICED) PROJECT PLANNER: CATHERINE BARBER CP Monroe briefly presented the project description. Chair Bojues noted that all commissioners had made a site visit. Commissioners noted to staff that the Negative Declaration did not include any analysis of the impact of removing stand of trees on this site on the long distance views, which the General Plan indicates is a concern. Also concerned with fire department access for equipment. Report notes applicant would be responsible for repair of damage to Sisters of Mercy trail caused by construction, can such a requirement be made of two private property owners. Do not see why the tree stumps need to be ground within 24 hours of trimming, does this relate in some way to maintaining slope stability during construction of the retaining walls. These items need to be address in the Negative Declaration before it can be adopted. There were no further questions to staff from Commission on the Negative Declaration or the project. Chair Bojues opened the public comment. Michael Gaul, 1237 Laguna Avenue, architect and contractor, represented the project. Trees on site have not been cared for, will remove for construction and replant 60 trees, do not want to increase paving unnecessarily; don't know where we will be able to find a distant view of the site, all the area is heavily vegetated with trees. Commissioner noted that the General Plan states these distant views of hillside area are to be protected, need to know that project or change is being evaluated with this project. Spoke with Fire Marshal and he identified a combination of fire protections, including a turn out on the street at the top of the site, a stair directly into the site from the street and installation of a commercial fire sprinkler system, which would be adequate. The requirement for trail repair was included if it was necessary to gain access from that side for construction, will put in drive way first and will not need to enter Sisters of Mercy property. Will hire a tree removal company, do not care if they must grind stumps within 24 hours. This is a beautiful spot, have designed the house into the site; need the special permit for attached garages because have a handicapped child and need place to drive in and get out of car, slope on lot dictates location on site, with a detached garage would have more driveway and paving on site. The size of the house is within city standards, the neighbors are located in the unincorporated county and they are allowed a lot more square footage and two units as well; would prefer not to install story poles as required with the environmental scoping, it will be difficult and will not see much but roof. Commissioner noted that the roof would be the most important item seen as on drives by this site, sure you want composition shingles? Applicant noted will plant along the street to screen view of the roof and will use a textured composition shingle. Would like to delete the sidewalk requirement along the street, since no one else in the area has a sidewalk. CA noted there are legal requirements for sidewalks, need to determine before respond. Applicant also noted that would prefer to use natural drainage into existing downhill drain and not pump to street as mentioned in Public Works memo. Sr. Eng. noted that could look into alternate drainage since drain at street level empties into drain which runs downhill on site. Public comments continued: Commissioner noted that there seem to be some inconsistencies between the landscape plan and the house plans, need to be corrected; also selection of trees does not seem to be sensitive to the water balance on the lot and to the existing oak tree, too much variety in plant choice will have an inconsistent look when done, new trees need to support the existing oak, with proper care oaks can grow closely; some of the trees suggested are not trees but shrubs; also need a more detailed erosion control plan, the use of "j" hooks seems to be in error. CP noted that city employee who reviews for NPDES compliance will review plans. Water balance on site should drive landscape plan and it needs to be substantially revised and the planter on the south side of the house needs to be removed to allow access to the garage. Why is chain link fence being used instead of wood along property line? Applicant noted wanted an open feel, 14 City of Burlingame Planning Commission Minutes February 9, 2004 neighbors use chain link, thought could plant on it. Chain link fence exists on three sides. There were no other comments and the public comment was closed. C. Keighran made a motion to refer this project to the action calendar when the amendments had been made to the Negative Declaration and the landscape plan and plant materials have been corrected; she noted that while she had concerns about the landscaping, this is a nice job of design, the house is large but the lot is large, glad he is not splitting the lot when he could; in addition to negative declaration items and landscaping should address fire access, consistency on plans of side walls of the building, and water/drainage on site when resubmit. The motion was seconded by C. Auran. Comment on the motion: look like a house designed by people who will live in it with shingle siding, sandstone and a stucco chimney. Chair Bojues called for a voice vote on the motion to refer the item to the action calendar after the additional studies for the negative declaration and project and corrections to the plans have been completed and checked by staff. The motion passed on a 6-0-1 (C. Brownrigg absent) voice vote. The Planning Commission's action is advisory and not appealable. This item concluded at 11:10 p.m. 12. NORTH BURLINGA►ME/ROLLINS ROAD SPECIFIC PLAN — STUDY SESSION ON LAND USE CP Monroe briefly presented the Land Use Chapteypf the Draft North Burlingame/Rollins Ro9d'Specific Plan. She noted that the land use plan has two distinct areas, the Rollins Road area and the El Camino Real North area, with four subareas within each area She first reviewed the Rollins Road arp land uses, noting that the area would continue as a strong,iadustrial area, with the addition of auto sales and service along Adrian'Road. The Commission then reviewed the Rollins Road area by subarea.,-``�r /;A-1— The.Northern Gateway Area: The proposal for this area is to continue the industrial _Pase, but to ` allow the option of live/work uses on a limited basis, where the land use fits in with the mdual character and there was one living unit per work space. She noted that C. Brownrigg had sent in comments, asking if the live/work concept could be expanded so that one larger shared work space could serve several living units. Commissioners noted that this might be hard to regulate, and since this area is,isolated from the rest of Burlingame's commercial areas and services, this might not be the best option;'noting the difficulty is evaluating what uses would be allowed as live work ' it might include architects, photographers, intef or designers, butjhese are traditionally professional office uses, and would not normally be compatible w# the area's industrial environment; it makes more sense to place residential uses in the El Camino Realprridor, that area'is still within one-third mile of the transit corridor, when;medical offices are relocated to the hospital campus, there will be areal opportunity to put housing in that area which will better}ntegrate with the rest of the community. Live/work might work if there were'some control on the size of the work space and living unit and type of use, but it may be too hard,to' regulate. In conclusion, the Commission recommended the following for the Northern Gateway Afea: • Leave out the option for live -work in this are concentrate residential in the El Camino Real North Area, continue the current light industrial pses. 15 Michael Gaul PO Box 1617 Burlingame, Ca 94010 ph 650 344-1634 fax 650 344-0187 February 20, 2004 Re: Response to Planning Commission Meeting of 2/9/2004 regarding single family residence and landscape of 2838 Adeline Drive. On 2/16/041 met with the Erosion Control Specialist for the City of Burlingame. We reviewed the measures needed for this project. It was agreed that the most important issue would be the monitoring of the site runoff and the implimentation of the site management practices as outlined in the brochure provided titled 'Blueprint for a Clean Bay". This brochure will be part of the Erosion Control Plan and will be the responsibility of the General Contractor to enforce and to be sure that it is understood by all those working on the site. Additionally, a series of rock check dams were added to the area where the most runoff should occur. The Landscape Plan has been corrected and resubmitted. The changes include more of the trees to be Coastal Live Oaks, replacement of the Red Bud shrubs at the driveway property line with Swampmyrtle trees and removal of the Jacaranda at the house side planter. Please refer to the Landscape Plan for the changes requested. Two views of the tree tops were located from areas further away than the property adjacent to 2838 Adeline Drive. The first view shows the trees of the subject property from the parking lot at Kohl Mansion on the grounds of Mercy High School. The Eucalyptus remaining in the digital image is located on the property owned by the Sisters of Mercy. The second view of the tree tops is from the side of the road on Hillside Drive above the subject property. Also attached please find the approved tree removal permit issued by Steve Porter of the Parks and Recreation Department. Sincerely, Michael Gaul Bluepr-nt for a Clem Bay Best Management Practices to Prevent Stormwater Pollution from Construction -Related Activities 5 ` L r +5, B A S M A A The Bay Area Stormwater Management Agencies Association (BASMAA), a consortium of Bay Area municipalities from Alameda, Contra Costa, Marin, San Mateo, Santa Clara, Solano, and Sonoma Counties, developed this booklet as a resource for all general contractors, home builders, and subcontractors working on construction sites. COIUENTS Introduction............................................................................................................................... 2 StormwaterPollution..................................................................................................... 2 Storm Drain System Pollution From Construction Sites Adverse Effects from Stormwater Pollution Requirements for Dischargers............................................................................. 3 Municipal Stormwater Program Projects Equal To Or Greater Than 1 Acre California State Water Resources Control Board General Permit Notice of Intent (NOI) Storm Water Pollution Prevention Plan (SWPPP) Projects Less Than 1 Acre General Best Management Practices............................................................ 3 Specific Best Management Practices Erosion Prevention and Sediment Control .................................................. 4 Prevent erosion Control sediment GeneralSite Maintenance......................................................................................... 6 Prevent spills and leaks Clean up spills immediately after they happen Store materials under cover Cover and maintain dumpsters Collect and properly dispose of paint removal wastes Clean up paints, solvents, adhesives, and cleaning solutions properly Keep fresh concrete and cement mortars out of gutters, storm drains, and creeks Service and maintain portable toilets Dispose of cleared vegetation properly Demolition Waste Management..........................................................................9 Make sure all demolition waste is properly disposed of Roadwork and Pavement Construction.................................................... 9 Plan roadwork and pavement construction to avoid stormwater pollution Contaminated Ponded Stormwater, Groundwater, andSoil Guidance......................................................................................................... 10 Look for ponded stormwater, groundwater, and/or soil contamination Take appropriate action Introduction Stormwater Pollution tormwater pollution is a national environmental problem. In California, stormwater runoff is a major source of water pollution. To help combat the problems of stormwater pollution, federal and state governments have developed a program for monitor- ing and permitting discharges to municipal storm drain systems, creeks, and water bodies such as San Francisco Bay. Municipalities in the Bay Area are required by the Clean Water Act to develop stormwater management programs that include requirements for construction activities. Your construction project will need to comply with local municipal requirements. If your construction activity will disturb one acre or more, you must also obtain coverage under the General Construction Activity Permit (see Requirements for Dischargers). Blueprint for a Clean Bay is an introductory guide to stormwater quality control on construction sites. It contains several principles and techniques that you can use to help prevent stormwater pollution. BASMAA has developed this booklet as a resource for all gener- al contractors, home builders, and subcontractors working on construction sites. Blueprint for a Clean Bay is not a design manual or a Stormwater Pollution Prevention Plan (SWPPP) (see Requirements for Dischargers). For more information on the General Permit, designing stormwater quality controls, or producing a Stormwater Pollution Prevention Plan, please refer to: ❑ the California Stormwater Quality Association (CASQA) Stormwater Best Management Practice Handbook for Construction, ❑ the Regional Water Quality Control Board's (RWQCB) Guidelines for Construction Projects, or ❑ consult your local program or the State Water Resources Control Board (SWRCB) (see below). Please note that this booklet is concerned only with the management of construction sites and activities during construction. 2 Storm Drain System Stormwater or runoff from sources like sprinklers and hoses. flows over the ground into the storm drain system. In the San Francisco Bay Area, storm drain systems consist of gutters, storm drains, underground pipes, open channels, culverts, and creeks. Storm drain systems are designed to drain directly to the Bay, Delta, or Pacific Ocean with no treatment Pollution From Construction Sites Stormwater runoff is part of a natural hydrologic pro- cess. However, land development and construction activities can significantly alter natural drainage pat- terns and pollute stormwater runoff. Runoff picks up pollutants as it flows over the ground or paved areas and carries these pollutants into the storm drain system. Common sources of pollutants from construc- tion sites include: sediments from soil erosion; construction materials and waste (e.g., paint, solvents, concrete, drywall); landscaping runoff containing fer- tilizers and pesticides; and spilled oil, fuel, and other fluids from construction vehicles and heavy equipment. Adverse Effects from Stormwater Pollution Stormwater pollution is a major source of water pollu- tion in California. It can cause declines in fisheries, damage habitats, and limit water recreation activities. Stormwater pollution poses a serious threat to the overall health of the ecosystem. Requirements for Dischargers Municipal Stormwater Program Municipalities in the Bay Area are required by federal regulations to develop programs to control the discharge of pollutants to the storm drain system, including the discharge of pollutants from construction sites and areas of new development or significant redevelopment As a result, your development and construction projects are subject to new requirements designed to improve stormwater quality such as, expanded plan check and review, contract specifications, stormwater treatment measures, runoff monitoring, and increased site inspection. For more information on municipal require- ments, please contact the municipal representative listed on the back cover of this booklet Projects Equal To Or Greater Than 1 Acre If your construction activity will disturb one acre or more, you must obtain coverage under the General Construc-tion Activity Storm Water Permit (General Construction Permit) issued by the SWRCB for stormwater discharges associated with construction activity. To obtain coverage under the General Permit, a Notice of Intent (NOI) must be filed with the SWRCB. The General Construction Permit requires you to prepare and carry out a "Stormwater Pollution Prevention Plan" or SWPPP. Your SWPPP must identify appropriate stormwater pollution prevention measures or best management practices (BMPs), like the ones described in this booklet, to reduce pollutants in stormwater discharges from the construction site both during and after construction is complete. A best management practice or BMP is defined as any program, technology, process, practice, operating method, measure, or device that controls, prevents, removes, or reduces pollution. The General Permit also requires permanent stormwater quality controls (see BASMMs Start at the Source manual and CASQ Ns BMP Handbooks New Development and Redevelopment for examples). You should keep a copy of your SWPPP readily available onsite throughout construction. Projects Less Than 1 Acre If your project is less than one acre, you may still need to use BMPs to comply with local municipal requirements. Check with the local stormwater program (listed on back cover), or planning or engineering department for details. Best Management Practices General Practices The following are some general principles that can significantly reduce pollution from construction activity and help make compliance with stormwater regulations easy: ❑ Identify all storm drains, drainage swales and creeks located near the construction site and make sure all subcontractors are aware of their locations to prevent pollutants from entering them. ❑ Clean up leaks, drips, and other spills immediately so they do not contact stormwater. ❑ Refuel vehicles and heavy equipment in one designated location on the site and take care to clean up spills immediately. ❑ Wash vehicles at an appropriate off -site facility. If equipment must be washed on -site, do not use soaps, solvents, degreasers, or steam cleaning equipment, and prevent wash water from entering the storm drain. If possible, direct wash water to a low point where it can evaporate and/or infiltrate. ❑ Never wash down pavement or surfaces where materials have spilled. Use dry cleanup methods whenever possible. ❑ Avoid contaminating clean runoff from areas adjacent to your site by using berms and/or temporary or permanent drainage ditches to divert water flow around the site. Reduce stormwater runoff velocities by constructing temporary check dams and/or berms where appropriate. ❑ Protect all storm drain inlets using filter fabric cloth or other best management practices to prevent sediments from entering the storm drainage system during construction activities. ❑ Keep materials out of the rain — prevent runoff pollution at the source. Schedule clearing or heavy earth moving activities for periods of dry weather. Cover exposed piles of soil, construction materials and wastes with plastic sheeting or temporary roofs. Before it rains, sweep and remove materials from surfaces that drain to storm drains, creeks, or channels. Best Management Practices ❑ Keep pollutants off exposed surfaces. Place trash cans around the site to reduce litter. Dispose of non -hazardous construction wastes in covered dumpsters or recycling receptacles. ❑ Practice source reduction — reduce waste by or- dering only the amount you need to finish the job. ❑ Do not over -apply pesticides or fertilizers and follow manufacturers instructions for mixing and applying materials. ❑ Recycle leftover materials whenever possible. Materials such as concrete, asphalt, scrap metal, solvents, degreasers, cleared vegetation, paper, rock, and vehicle maintenance materials such as used oil, antifreeze, batteries, and tires are recyclable (check with the local planning or building department for more information). ❑ Dispose of all wastes properly. Materials that cannot be reused or recycled must be taken to an appropriate landfill or may require disposal as hazardous waste. Never throw debris into channels, creeks or into wetland areas. Never store or leave debris in the street or near a creek where it may contact runoff. 1J Illegal dumping is a violation subject to a fine and/or time in jail. Be sure that trailers carrying your materials are covered during transit. If not, the hauler may be cited and fined. ❑ Train your employees and inform subcontractors about the stormwater requirements and their own responsibilities. 71rpm tj F.' i l AIL* 4 Specific Practices Following is a summary of specific best management practices for erosion and sediment control and contractor activities. For more information on erosion and sediment control BMPs and their design, please refer to the RWQCB Erosion and Sediment Control Field Manual (August 2002), the CASQA Stormwater Best Management Practice Handbook for Construction (January 2003), and the Association of Bay Area Governments (ABAG) Manual of Standards for Erosion & Sediment Control Measures (May 1995). Erosion Prevention and Sediment Control Prevent erosion Soil erosion is the process by which soil particles are removed from the land surface, by wind, water and/or gravity. Soil particles removed by stormwater runoff are pollutants that when deposited in local creeks, lakes, Bay or Delta, can have negative impacts on aquatic habitat. Exposed soil after clearing, grading, or excavation is easily eroded by wind or water. The following practices will help prevent erosion from occurring on the construction site: ❑ Plan the development to fit the topography, soils, drainage pattern and natural vegetation of the site. ❑ Delineate clearing limits, easements, setbacks, sensitive or critical areas, trees, drainage courses, and buffer zones to prevent excessive or unnecessary disturbances and exposure. ❑ Phase grading operations to reduce disturbed areas and time of exposure. ❑ Avoid excavation and grading during wet weather. ❑ Limit on -site construction routes and stabilize construction entrances) and exit(s). ❑ Remove existing vegetation only when absolutely necessary. ❑ Construct diversion dikes and drainage swales to channel runoff around the site. • Use berms and drainage ditches to divert runoff around exposed areas. Place diversion ditches across the top of cut slopes. Best Management Practices ❑ Plant vegetation on exposed slopes. Where replanting is not feasible, use erosion control blankets (e.g., jute or straw matting, glass fiber or excelsior matting, mulch netting). ❑ Consider slope terracing with cross drains to increase soil stability. ❑ Cover stockpiled soil and landscaping materials with secured plastic sheeting and divert runoff around them. fabric fences, block and gravel filters, catch basin filter inserts, excavated drop inlet sediment traps, or a combination of these. ❑ Collect and detain sediment -laden runoff in sediment traps (an excavated or bermed area or constructed device) to allow sediments to settle out prior to discharge. ❑ Use sediment controls and filtration to remove sediments from dewatering discharges. ❑ As a backup measure, protect drainage courses, ❑ creeks, or catch basins with fiber rolls, silt fences, sand/gravel bags and/or temporary drainage swales. ❑ Once grading is completed, stabilize the disturbed areas using permanent vegetation as soon as possible. ❑ Use temporary erosion controls until vegetation is established. ❑ Conduct routine inspections of erosion control measures especially before and immediately after rainstorms, and repair if necessary. Control sediment Sedimentation is defined as the process of depositing sediments carried away by runoff. Sediments consist of soil particles, clays, sands, and other minerals. The purpose of sediment control practices is to remove sediments from stormwater before they are transported off -site or reach a storm drain inlet or nearby creek. The Prevent construction vehicle tires from tracking soil onto adjacent streets by constructing a tempo- rary stone pad with a filter fabric underliner near the site exit where dirt and mud can be removed. When cleaning sediments from streets, driveways and paved areas on construction sites, use dry sweeping methods where possible. If water must be used to flush pavement, collect runoff to settle out sediments and protect storm drain inlets. Note: Performance of erosion and sediment controls is dependent on proper installation, routine inspections and maintenance of the controls. Straw bale barriers are an example of a BMP that has not been as effective as expected due to improper use. Most of the BMPs described above are temporary and if left alone can quickly fall into disrepair and/or become ineffective. Routine inspections and maintenance, particularly before and after a storm event, must be part of any erosion and sediment control plan. most effective sediment control The RWQCB's Field Manual, the CASQA Stormwater Best Management practices reduce runoff velocity and practice Handbook for Construction, and the ABAG Manual of trap or detain runoff allowing Standards for Erosion and Sediment Control provide specific details sediments to settle out. and design criteria for erosion and sediment control plans. ❑ Use terracing, rip rap, sand/gravel bags, rocks, fiber rolls, and/or tempo- rary vegetation on slopes to reduce runoff velocity and trap sediments. Do not use asphalt rubble or other demolition debris for this purpose. ❑ Use check dams in temporary drains and swales to reduce runoff velocity and promote sedimentation. ❑ Protect storm drain inlets from sedi- ment -laden runoff. Storm drain inlet protection devices include sand/gravel bag barriers, filter Drainage swales channel runoff around a construction site. Planting temporary vege- tation on freshly graded areas, and trenching and staking fiber rolls and/or silt fences downslope are common techniques for preventing erosion and controlling sediment. 5 Best Management Practices Make sure equipment repair area is bermed or well away from creeks and storm drains. General Site Maintenance Prevent spills and leaks Poorly maintained vehicles and heavy equipment leaking fuel, oil, antifreeze, or other fluids on the con- struction site are common sources of stormwater pol- lution and soil contamination. Construction material spills can also cause serious problems. Careful site planning, preventive maintenance, and good materials handling practices can eliminate most spills and leaks. ❑ Maintain all vehicles and heavy equipment. Inspect frequently for and repair leaks. ❑ Designate specific areas of the construction site, well away from creeks or storm drain inlets, for vehicle and equipment parking and routine maintenance. ❑ Perform major maintenance, repair jobs and vehi- cle and equipment washing off -site when feasible, or in designated and controlled areas on -site. 6 ❑ If you must drain and replace motor oil, radiator coolant, or other fluids on -site, use drip pans or drop cloths to catch drips and spills. Collect all spent fluids, store in labeled separate containers, and recycle whenever possible. Note that in order to be recyclable, such liquids must not be mixed with other fluids. Non -recycled fluids generally must be disposed of as hazardous wastes. Clean up spills immediately after they happen When vehicle fluids or materials such as paints or solvents are spilled, cleanup should be immediate, automatic, and routine. ❑ Sweep up spilled dry materials (e.g., cement, mortar, or fertilizer) immediately. Never attempt to "wash them away" with water, or bury them. Use only minimal water for dust control. ❑ Clean up liquid spills on paved or impermeable surfaces using "dry" cleanup methods (e.g., absorbent materials like cat litter, sand or rags). ❑ Clean up spills on dirt areas by digging up and properly disposing of the contaminated soil. Clean up spills on dirt areas by removing contaminated ❑ Report significant spills soil. to the appropriate spill response agencies immediately (See reference list on the back cover of this booklet for more information). Note: Used cleanup rags that have absorbed hazardous materials must either be sent to a certified industrial laundry or dry cleaner, or disposed of through a licensed hazardous waste disposal company. Best Management Practices Store materials under cover Wet and dry building materials with the potential to pollute runoff should be stored under cover and/or surrounded by berms when rain is forecast or during wet weather. ❑ Store stockpiled materials and wastes under a temporary roof or secured plastic sheeting or tarp. ❑ Berm around storage areas to prevent contact with runoff. ❑ Plaster or other powders can create large quantities of suspended solids in runoff, which may be toxic to aquatic life and cause serious environmental harm even if the materials are inert Store all such Store building potentially polluting dry materials keep out rain. —especially open bags— under a temporary roof or inside a building, or cover securely with an impermeable tarp. By properly storing dry materials, you may also help protect air quality, as well as water quality. ❑ Store containers of paints, chemicals, solvents, and other hazardous materials in accordance with secondary containment regulations and under cover during rainy periods. Cover and maintain dumpsters Open and/or leaking dumpsters can be a source of stormwater pollution. ❑ Cover open dumpsters with plastic sheeting or a tarp. Secure the sheeting or tarp around the outside of the dumpster. If your dumpster has a cover, close it. ❑ If a dumpster is leaking, contain and collect leaking material. Return the dumpster to the leasing company for repair/exchange. ❑ Do not clean dumpsters on -site. Return to leasing company for periodic cleaning, if necessary. . Collect and properly dispose of paint removal wastes Paint removal wastes include chemical paint stripping 9FF.».. materials under cover. Make sure dumpsters are properly covered to 7 residues, paint chips and dust, sand blasting material and wash water.'Ihese wastes contain chemicals that are harmful to the wildlife in our creeks and the water bodies they flow to. Keep all paint wastes away from the gutter, street, and storm drains. ❑ Non -hazardous paint chips and dust from dry stripping and sand blasting may be swept up or collected in plastic drop cloths and disposed of as trash. Chemical paint stripping residue and chips and dust from marine paints or paints containing lead or tributyl tin must be disposed of as a hazardous waste. ❑ When stripping or cleaning building exteriors with high-pressure water, cover or berm storm drain inlets. If possible (and allowed by your local waste- water treatment plant), collect (mop or vacuum) building cleaning water and discharge to the sani- tary sewer. Alternatively, discharge non -contami- nated wash water onto a dirt area and spade into the soil. Be sure to shovel or sweep up any debris that remains in the gutter and dispose of as garbage. Clean up paints, solvents, adhesives, and cleaning solutions properly Although many paint materials can and should be recy- cled, liquid residues from paints, thinners, solvents, glues, and cleaning fluids are hazardous wastes. When Best Management Practices they are thoroughly dry, empty paint cans, used brushes, rags, absorbent materials, and drop cloths are no longer hazardous and may be disposed of as garbage. ❑ Never clean brushes or rinse paint containers into a street, gutter, storm drain, or creek. ❑ For water -based paints, paint out brushes to the extent possible and rinse to a drain leading to the sanitary sewer (i.e., indoor plumbing). ❑ For oil -based paints, paint out brushes to the extent possible, and filter and reuse thinners and solvents. Dispose of unusable thinners and residue as hazardous waste. ❑ Recycle, retum to supplier or donate unwanted water -based (latex) paint You may be able to recy- cle clean empty dry paint cans as metal (check with the local planning or building department for more information). ❑ Dried latex paint maybe disposed of in the garbage. ❑ Unwanted paint (that is not recycled), thinners, and sludges must be disposed of as hazardous waste. ❑ More and more paint companies are recycling excess latex paint (check with the local planning or building department for more information). Keep fresh concrete and cement mortars out of gutters, storm drains, and creeks Concrete and cement -related mortars that wash into gutters and storm drains are toxic to fish and the aquatic environment ❑ Locate mortar/stucco mixers inside bermed areas to avoid discharge to street or storm drains. ❑ Avoid mixing excess amounts of fresh concrete or cement mortar. ❑ Store dry and wet materials under cover, protected from rainfall and runoff. ❑ Wash out concrete transit mixers only in designated wash -out areas where the water will flow into settling ponds or onto dirt or stockpiles of aggre- gate base or sand. Pump water from settling ponds to the sanitary sewer, where allowed. Whenever possible, recycle washout by pumping back into 1:3 mixers for reuse. Never dispose of washout into the street, storm drains, drainage ditches, or creeks. ❑ Whenever possible, return contents of mixer barrel to the yard for recycling. Dispose of small amounts of excess concrete, grout, and mortar in the trash. Service and maintain portable toilets Leaking portable toilets are a potential health and environmental hazard. ❑ Inspect portable toilets for leaks. ❑ Be sure the leasing company adequately maintains, promptly repairs, and replaces units as needed. ❑ The leasing company must have a permit to dispose of waste to the sanitary sewer. ❑ Do not place on or near storm drain inlets. Dispose of cleared vegetation properly Cleared vegetation, tree trimmings, and other plant material can cause environmental damage if it gets into creeks. Such "organic" material requires large quantities of oxygen to decompose, which reduces the oxygen available for fish and other aquatic life. ❑ Do not dispose of plant material in a creek or drainage facility or leave it in a roadway where it can clog storm drain inlets. ❑ Avoid disposal of plant material in trash dumpsters or mixing it with other wastes. Compost plant material or take it to a landfill or other facility that composts yard waste (check with the local planning or building department for more information). Recycle yard waste and tree prunings at a landfill that chips and composts plant material. Demolition Waste Management Make sure all demolition waste is property disposed of Demolition debris that is left in the street or pushed over a bank into a creek bed or drainage facility causes serious problems for flood control, storm drain maintenance, and the health of our environment. Different types of materials have different disposal requirements or recycling options. ❑ Materials that can be recycled from demolition projects include: metal framing, wood, concrete, asphalt, and plate glass. ❑ Materials that can be salvaged for reuse from old structures include: doors, banisters, floorboards, windows, 2x4s, and other old, dense lumber. Roadwork and Pavement Construction Plan roadwork and pavement construction to avoid stormwater pollution Road paving, surfacing, and asphalt removal happen right in the street, with numerous opportunities for stormwater pollution from the asphalt mix, saw -cut slurry, or excavated material. Properly proportioned asphalt mix and well -compacted pavement avoid a host of water pollution problems. ❑ Apply concrete, asphalt, and seal coat during dry weather to prevent contaminants from contacting stormwater runoff. ❑ Cover storm dram inlets and manholes when pav- ing or applying seal coat, slurry seal, fog seal, etc. ❑ Unusable, unrecycleable debris should be confined ❑ Always park paving machines over drip pans or to dumpsters, covered at night and during wet absorbent materials, since they tend to drip weather, and taken to a landfill for disposal. continuously. ❑ Hazardous debris such as asbestos must be handled in accordance with specific laws and regulations and disposed of as a hazardous waste. For more information of asbestos handling and disposal regulations, contact the Bay Area Air Quality Management District. ❑ Arrange for an adequate debris disposal schedule to ensure that dumpsters do not overflow. ❑ Most local planning or building departments have lists of recycling and disposal services for construction and demolition debris. 9 ❑ When making saw -cuts in pavement, use as little water as possible. Cover each catch basin com- pletely with filter fabric during the sawing opera- tion and contain the slurry by placing sand/gravel bags around the catch basin. After the liquid drains or evaporates, shovel or vacuum the slurry residue from the pavement or gutter and remove from site. ❑ Wash down exposed aggregate concrete only when the wash water can: (1) flow onto a dirt area; (2) drain onto a bermed surface from which it can be pumped and disposed of properly; or (3) be vacu- umed from a catchment created by blocking a storm drain inlet. If necessary, divert runoff with temporary berms. Make sure runoff does not reach gutters or storm drains. ❑ Allow aggregate rinse to settle, and pump the water to the sanitary sewer if allowed by your local wastewater authority. ❑ Never wash sweepings from exposed aggregate con- crete into a street or storm drain. Collect and return to aggregate base stockpile, or dispose with trash. ❑ Recycle broken concrete and asphalt (check with the local planning or building department for more information). oT (uopuuuojn aiotu .io;;apjooq sigh;o .tanoo 31auq atp uo jsq aqua to;a t aaS) aourpja tagpn; ao; p mog jo quoD Alquno aaqum jouoiBag atp ao/pus AouaBu jeooj Tuudoadde atp jp o •Bupsaq ao; pjag puu paupquoo aq pings amen atp'papadsns sj uopeu rumuoo jl•u[uap uuols ao 'aajjnB Ilaa gs u of paRmgo -s.p aq louuuo paquuttuu4uoo st Tetp Bujaaquenap Aq palwauaB aajuen ao 1aapenpunoa2 'aa muuogs papuod uorpoe ageudoadde a3ey •spunodmoa Buuno puu'squanjos'squted'sanj8 'atuq Isppi? su tjans sjuogttago snop mzuq aatpo ao :asuaa8 pue 'Uo 'jan; su gans s4onpoad umajoa4ad :spnpoad aatpo puu aaqsujd :sluaBaalap :saaztjpaa; :sapplgaag puu sapiopsad Bmnjoem sapaadoad juaoutpu ao ants atp uo pa unoao aeeg sjpdS 0 ao :sapTnpoe uopon nsuoa Butmp paaaqunooua aau sugap paunq aatpo ao 'sumap 'sTm aBeaols punoAmpun pauopuegV in !sat aadoad junsnun aatpo sgtgtgxa ao/puu umajogad;o sjjauis 'paaojoostp saeaddu Pos in :umajo•gad;o sjjatus ao/puu uaags-Apo uE sltgttjxa fuuanEnnap Aq p r-muaB aajuen .to/pttu aagt:enpunoa8 'aaquenuuojs papuod ❑ :aapao dnueajo juooj ao 'aie}s 'putg tadns E ol aaafgns sr aqjs uopon gsuoo ag L 0 :sapaadoad juaoufpu .to alis atp uo Bmdump F2ajjt;o Aao4su4 u st aaag,L 0 .A}umau jEt gsnput/juraaaututoa snoje aad;o Lam ue m sj agjs poa oad atLL O :paezeg Muaumoajnua puu tppag jepuagod u asod pue juasaad aq Aunt pos ao/puu'aa}uenptmoa8'aaluenuuols papuod pawujtttuluoo'Ajddu suopipuoo Butemjjo; atp;o Aue •sjetaatu snopaezeg oi pasodxa panEuau�uoo atuooaq AEtu jtos puu aanuenpunoaB 'aaquentuaols papuod uop}euPgmuoo nos Jo/pue %nempunoj aanemuucgs papuod ao3 3looZ aauepmlJ iioS pue -j,-nvMpuno.D -jalumm [olS papuod pagnuuueluoa Pollution Control Agencies and Sources of Information Storm water quality management programs Alameda Countywide Clean Water Program 951 Turner Court, Hayward, CA 94545 (510) 670-5543 www.cleanwaterprogram.com Contra Costa Clean Water Program 255 Glacier Drive, Martinez, CA 94553.4897 (925) 313-2392 (800) NO DUMPING www.eccleanwater.org Fairfield -Suisun Urban Runoff Management Program 1010 Chadbourne Road Fairfield, CA 94534 (707) 429-8930 Marin County Stormwater Pollution Prevention Program 3501 Civic Center Drive, Room 304, San Rafael, CA 94903 (415) 499-6528 www.mcstoppp.org San Mateo Countywide Stormwater Pollution Prevention Program 555 County Center, Fifth Floor Redwood City, CA 94063 (650) 363-4305 www.flowstobay.org Santa Clara Valley Urban Runoff Pollution Prevention Program 699 Town & Country Village Sunnyvale, CA 94086 (800) 794-2482 www.scvurppp.org Sonoma County Water Agency 2150 West College Avenue Santa Rosa, CA 95401 (707) 526-5370 www.scwa.org Vallejo Sanitation and Flood Control District 450 Ryder Street, Vallejo, CA 94590 (707) 644-8949 www.vsfcd.com Bay Area Stormwater Management Agencies Association (BASMAA) 1515 Clay Street, Suite 1400, Oakland, CA 94612 (510) 622-2326 (888)BayWise www.basmaa.org Agencies to call in the event of a spill You are required by law to report all significant releases or suspected significant releases of hazardous materials, including oil. To report a spill, call the following agencies: 1. Dial 911 or your local emergency response number. 2. Call the Governor's Office of Emergency Services Warning Center, (800) 852-7550 (24 hours). For spills of "Federal Reportable Quantities" of oil, chemicals, or other hazardous materials to land, air, or water, notify the National Response Center (800-424-8802). If you are not sure whether the spill is of a "reportable quantity," call the federal Environmental Protection Agency (800) 424-9340 for clarification. For further information, see California Hazardous Material Spill/Release Notification Guidance (State Office of Emergency Services, Hazardous Materials Division). Agencies to call if you find or suspect contaminated soil or groundwater Regional Water Quality Control Board: San Francisco Bay Region (510) 622-2300 Central Valley Region (916) 255-3000 California Environmental Protection Agency (Cal EPA), Department of Toxic Substances Control (DISC) (510) 540-3732 Documents and available resources From State Water Resources Control Board (SWRCB) (916) 341-5537 www.swrcb.ca.gov General Construction Activity Storm Water Permit From Friends of the San Francisco Estuary (510) 622-2465 www.abag.ca.gov/bayarea/sfep Field Manual Guidelines for Construction Projects Hold On to Your Dirt —Video Keep it Clean — Video From Association of Bay Area Governments (ABAG) (510) 464-7900 www.abag.ca.gov Manual of Standards forErosion and Sediment Control Measures From Cal EPA, DTSC (916) 322-3670 www.dtsc.ca.gov Waste Minimization for the Building Construction Industry - Fact Skeet From California Stormwater Quality Association (CASQA) www.cabmphandooks.com Stormwater Best Management Practice Handbook — Construction BASMAA adapted this booklet from one originally developed and generously shared by the Santa Clara Valley Nonpoint Source Pollution Control Program. Illustrations by John Finger 0 2003 Bay Area Stormwater Management Agencies Association 0 Printed on Recycled Paper CALENDAR OF OPERATIONS April 1 Installation of Erosion Control Measures as outlined in Erosion Control Plan April 15 Removal of 3 trees at base of driveway April 22 Begin construction of driveway retaining walls May 13 Backfill of driveway and gravel surfacing May 20 Pour concrete driveway entrance at street May 27 Tree removal from site and stump grinding June 10 House foundation excavation June 17 House foundation form and pour July 8 Grading of site/ installation of hardscape at perimeter July 15 Pool excavation and construction July 22 Underground tenching for utilities, landscape irrigation, and drainage August 5 Installation of underground utilties, landscape irrigation, and drainage August 19 Planting of landscape in all areas of site except 20' around house and pool Upon completion of house exterior, final elements of hardscape are to be installed within 3 weeks. Landscape materials to be installed within 3 weeks of finish of hardscape. Estimated date for completion of landscape is October 1, 2004. Contractor to perform daily inspections of site drainage for necessary adjustments to erosion control. Contractor to monitor daily traffic on and off site to prevent excess soil runoff in street and into storm drains. Contractor to assure that all subcontractors read and understand "Blueprint for a Clean Bay". Contractor to impliment all measures outlined in brochure as applicable. PROTECTED TREE REMOVAL PERMIT APPLICATION PARKS & RECREATION 50 BURLINGADEPARTMENT 1tIE AVENUE BURLINGAME,.CA 94010 (650) 558-7330 The undersigned owner of the property at: ADDRESS: P> (print or type) rotec hereby applies for a permit to remove or pted rune more than 1/3 of the crown or roots of the following p tree(s): SPECIES C:U-`fCn�S I ACACtA CIRCUMFERENCE "r LOCATION ON PROPERTY WORK TO BE PERFORMED !�l;'riCoVG 12 REASON WORK IS NECESSARY N G W r��-n EZpST/�r7c.aL`/ (please use back of form for additional comments) LS►c,C� "t-P� S "c'o BE; Rxz&toqG� �A-t2.�a� AT S�Z� �✓�T�{ 02AnJd� ��rr.�T NOTE: ATHOTOGRAPH OWNER tk CC44vNb--1, 6AILA L— OF THE TREE(S) MUST BE ADDRESS 23 �' GufJA SUBMITTED ALONG WITH A 2� 5.00 CHECK TO: PHONE (� THE CITY OF B URLINGAME c--------------------------- ------------------ PERMIT This permit allows the applicant to remove or prune the above listed tree(s) in accordance with the provisions of the Urban Reforestation and Tree Protection Ordinance (Municipal Code Chapter 11.06). By signing this permit, the applicant acknowledges receipt of a of Chapter 11.06, and agrees to comply with its provisions and alaigonsd beld tall appeals have expired or been resolved. CITY ARBORIST PARKS & RECREATION DIRECTOR CONDITIONS: 24 - inch box size landscape tree(s)will be required and may be planted any where on the roperty. if conditions are not met tivithh' the allotted time as speci led in Section 1L06.080, payment of $400 for each tree into the tree replacement fund will be required. NO replacements) required Contact the Parks Division at (650) 558-7330 when retnoval(s) completed DATE PERMIT EFFECTIVE PERMIT EXPIRES A copy of this permit nuist be available at the job site at all times when work is being performed 411103 CITY OF BURLINGAME Vol-&. BU RI.INOAME PARKS & RECREATION DEPARTMENT 850 Burlingame Avenue, Burlingame, California 94010-2899 m �- Telephone (650) 558-7300 - Parks / Trees (650) 558-7330 Fax (650) 696-7216 - E-mail: recreation@burlingame.org February 19, 2004 Michael Gaul 1237 Laguna Avenue Burlingame, CA 94010 RE: REQUEST FOR REMOVAL OF TWELVE EUCALYPTUS TREES @ 2838 ADELINE DRIVE - BURLINGAME I reviewed your request for the removal of twelve Eucalyptus trees on the downhill side (facing northeast) of the property at the above address, and have made the following determination: 1) Applicant intends to develop property for a new house construction. 2) . The twelve Eucalyptus trees have significant structural defects and stability concerns and new construction on the lot will compound these concerns. 3) Replacement with 12 24-inch box size trees will be required as defined in Section 11.06.09. Therefore, I intend to issue a permit for the removal of the trees subject to the provisions of the Burlingame Municipal Code. If you agree with the conditions, please sign the enclosed permit and return in the self addressed envelope BEFORE March 3, 2004. If you wish to appeal this decision or any of its conditions or findings, you must file a written request by March 3, 2004 as provided in Section 11.06.080 of the Urban Reforestation and Tree Protection Ordinance (Burlingame Municipal Code Chapter 11.06). The permit will be issued on that date if no appeal has been received. Sincerely, t'St Steven Porter City Arborist - (ISA #WC-3073) SP/kh Enclosure yid,'., � j *.� F, t�y �., : • -.~�� d'�"� `�;;'� `. F �- , y M+` • '- � MOA - t;•� toy �� del �f " MR -''' C'?�T;•*y+ �. tz ,t^ aar�.;t+s W^�TJ?', � x � i'3, „� •Ss�.'r ,. �r 4 t � q Cn tCC % v. ^�`TTI-Nr � W14dr+• UL ,. ; •T 4� M• ar .y { ; AC -Lk tip\ . r � N; l l s�, d e .1�;,,�e. �, e,..� Dr—l;%c V)eelj CITY OF BURLINGAME NEGATIVE DECLARATION File No. ND-532 - P The City of Burlingame by Margaret Monroe on January 26, 2004, completed a review of the proposed project and determined that: (XX) It will not have a significant effect on the environment (XX) No Environmental Impact Report is required. Project Description: The proposal is to construct a new two and one half story single family dwelling with an attached garage at 2838 Adeline Drive, zoned R-1. The proposed house would cover 16.3% (4,343 SF) of the 26,576 SF lot, where 40% (10,630 SF) is the maximum lot coverage allowed. The house would have a total floor area of 7,797 SF (0.29 FAR) where 8,000 SF (0.30 FAR) is the maximum allowed. There would be three covered parking spaces provided for this five bedroom house in the attached garage. The applicant is seeking design review for a new single family dwelling and a special permit for an attached garage. The subject property is currently vacant and heavily vegetated with shrubs and trees, predominantly Blue Gum Eucalyptus. There are also Coast Live Oaks, California Bay Laurel and Acacia on this site. As part of the development of this parcel the applicant will be removing 40 trees from this site, 15 of which are of protected size. Burlingame municipal code section 11.06.020(f) defines a protected tree as any tree with a circumference of 48 inches or more when measured 54 inches above natural grade. The lot has a slope of between 21 % and 22%. Code Section 25.70.025(2)(d) stated that the maximum driveway slope shall not exceed 15 percent. The project includes grading and construction of retaining walls on this slope in order to build an access driveway to the more level portion of the lot where the proposed house will be constructed. This project is not exempt from CEQA review because of the trees and the slope on the lot. Reasons for Conclusion: The project is consistent with the General Plan and complies with all zoning requirements for the R-1 zoning district. Referring to the initial study for all other facts supporting findings, it is found that with the incorporation of the mitigations proposed, there is no substantial evidence that the project will have a significant effect on the environment, Planner 1/26/04 of Processing Official Title Date Signed The determination becomes final after action at a public hearing held before the Planning Commission, unless the commission's action is appealed to the City Council. Date posted: January 26, 2004 Declaration of Posting I declare under penalty of perjury that I am City Clerk of the City of Burlingame and that I posted a true copy of the above Negative Declaration at the City Hall of said City near the doors to the Council Chambers. Executed at Burlingame, California on January 26, 2004. A aled: ( ) Yes ( ) No A T. SSO, CITY CLERK, CITY OF URLINGAME 3. 4. 5. Col h INITIAL STUDY SUMMARY - ENVIRONMENTAL CHECKLIST Project Title: Lead Agency Name and Address: Contact Person and Phone Number: Project Location: Project Sponsor's Name and Address: General Plan Designation: Zoning: R-1 2838 Adeline Drive, New Single Family Dwelling City of Burlingame, Planning Department 501 Primrose Road, Burlingame, CA 94010 Margaret Monroe, City Planner (650) 558-7250 2838 Adeline Drive Burlingame, California Michael Gaul 1237 Laguna Avenue Burlingame, CA 941010 Low -Density Residential APN: 027-091-080 8. Description of the Project: The proposal is to construct a new two and one half story single family dwelling with an attached garage at 2838 Adeline Drive, zoned R-1. The proposed house would cover 16.3% (4,343 SF) of the 26,576 SF lot, where 40% (10,630 SF) is the maximum lot coverage allowed. The house would have a total floor area of 7,797 SF (0.29 FAR) where 8,000 SF (0.30 FAR) is the maximum allowed. There would be three covered attached parking spaces provided for this five bedroom house. The applicant is seeking design review for a new single family dwelling and a special permit for an attached garage. The subject property is currently vacant and heavily vegetated with shrubs and trees, predominantly Blue Gum Eucalyptus. There are also Coast Live Oaks, California Bay Laurel and Acacia on this site. As part of the development of this parcel the applicant will be removing 40 trees from this site,15 of which are of protected size. Burlingame municipal code section 11.06.020(f) defines a protected tree as any tree with a circumference of 48 inches or more when measured 54 inches above natural grade. The lot has a slope of between 21% and 22%. Code section 25.70.025(2)(d) states that the maximum driveway slope shall not exceed 15 percent. The project includes grading and building retaining walls on this slope in order to build an access driveway to the more level portion of the lot where the proposed house will be constructed. This project is subject to CEQA review because of the removal of the trees and the slope on the lot. 9. Surrounding Land uses and Setting: The property is located in the Burlingame hills. It is currently a vacant lot with a slope of between 21 % and 22%. This subject property, along with the property directly across the street were both once part of the larger Sisters of Mercy property, which was annexed into the City in the 1970's. The two properties extended to the west from the main campus, and are surrounded by single family residential properties that are located in unincorporated County of San Mateo. The subject property and surrounding properties are heavily vegetated with trees and shrubs. 10. Other public agencies whose approval is required: There are no permits required from other public agencies. However, San Mateo County is a responsible agency. ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED: The environmental factors checked below would be potentially affected by this project, involving at least one impact that is a "Potentially Significant Impact" as indicated by the checklist on the following pages. Land Use and Planning X Biological Resources X Aesthetics Population and Housing Mineral Resources Cultural Resources X Geology and Soils Hazards & Hazardous Recreation Materials X Hydrology & Water X Noise Agricultural Resources Quality Air Quality Public Services X Mandatory Findings of Significance Transportation/Traffic X Utilities and Service Systems DETERMINATION: (To be completed by the Lead Agency). 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 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 (1) have been analyzed adequately in an earlier EIR or NEGATIVE DECLARATION, and (2) 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. Margaret Monroe, City Planner Date Issues and Supporting Information Sources Sources Potentially Potentially Less Than No Significant Significant Significant Impact Issues Unless Impact Mitigation Incorporated 1. LAND USE AND PLANNING. Would the project: a) Physically divide an established community? 1,2 X b) 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 1,2 X or zoning ordinance) adopted for the purpose of avoiding or mitigating an environmental effect? c) Conflict with any applicable habitat conservation plan or natural community conservation plan? 2 X 2. POPULATION AND HOUSING. Would the project: a) Induce substantial population 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)? 1,3 X b) Displace substantial numbers of existing housing, necessitating 3 X the construction of replacement housing elsewhere? c) Displace substantial numbers of people, necessitating the 3 X construction of replacement housing elsewhere? 3. GEOLOGY AND SOILS. Would the project: a) Expose people or structures to potential substantial adverse 5,6,7 X effects, including the risk of loss, injury, or death involving: i) Rupture of a known earthquake fault, as delineated on the most 5,6,7, X recent Alquist-Priolo Earthquake Fault Zoning Map issued by the 17 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. ii) Strong seismic ground shaking? 5,6,7, X 17 iii) Seismic -related ground failure, including liquefaction? 5,6,7, X 17 iv) Landslides? 6,17 X b) . Result in substantial soil erosion or loss of topsoil? 5,17 X c) Be located on a geologic unit or soil that is unstable, or that 5,6 7, X would become unstable as a result of the project, and potentially 17 result in on- or off -site landslide, lateral spreading, subsidence, liquefaction or collapse? d) Be located on expansive soil, as defined in Table 18-1-B of the 5,6,17 X Uniform Building Code (1994), creating substantial risks to life or property? e) Have soils incapable of adequately supporting the use of septic 5,17 X tanks or alternative wastewater disposal systems where sewers are not available for the disposal of wastewater? 4. HYDROLOGY AND WATER QUALITY. Would the project: a) Violate any water quality standards or waste discharge 9,10,11 X requirements? Issues and Supporting Information Sources Sources Potentially Potentially Less Than No Significant Significant Significant Impact Issues Unless Impact Mitigation Incorporated 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 (e.g., the production rate of pre-existing 1 X 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? 1,17 X d) Substantially alter the existing drainage pattern of the site or area, including through the alteration of the course of a stream or 1,17 X river, or substantially increase the rate or amount of surface runoff in a manner which would result in flooding on- or off -site? e) Create or contribute runoff water which would exceed the capacity of existing or planned storm water drainage systems or 1,17 X provide substantial additional sources of polluted runoff? f) Otherwise substantially degrade water quality? 1,4,9, 11 X g) Place housing within a 100-year flood hazard area as mapped on 12 X a federal Flood Hazard Boundary or Flood Insurance Rate Map or other flood hazard delineation map? h) Place within a 100-year flood hazard area structures which would 12 X impede or redirect flood flows? i) Expose people or structures to a significant risk of loss, injury or death involving flooding, including flooding as a result of the I X failure of a levee or dam? j) Inundation by seiche, tsunami, or mudflow? 1,6 X 5. AIR QUALITY. Where available, the significance criteria established by the applicable air quality management or air pollution control district may be relied upon to make the following determinations. Would the project: a) Conflict with or obstruct implementation of the applicable air 1,13 X quality plan? b) Violate any air quality standard or contribute to an existing or 1,13 X projected air quality violation? c) Result in a cumulatively considerable net increase of any criteria 1,13 X pollutant 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)? d) Expose sensitive receptors to substantial pollutant 1,13 X concentrations? e) Create objectionable odors affecting a substantial number of 1,13 X people? 6. TRANSPORTATION/TRAFFIC. Would the project: a) Cause an increase in traffic which is substantial in relation to the 1,11 X existing traffic Ioad and capacity of the street system (i.e., result Issues and Supporting Information Sources Sources Potentially Potentially Less Than No Significant Significant Significant Impact Issues Unless Impact Mitigation Incorporated 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? 11 X c) Result in a change in air traffic patterns, including either an increase in traffic levels or a change in location that results in 1,11 X substantial safety risks? d) Substantially increase hazards due to a design feature (e.g. sharp 9,10 X curves or dangerous intersections) or incompatible uses (e.g., farm equipment)? e) Result in inadequate emergency access? 8,10 X f) Result in inadequate parking capacity? 2,10 X g) Conflict with adopted policies, plans, or programs supporting 1,4 X alternative transportation (e.g., bus turnouts, bicycle racks)? 7. BIOLOGICAL RESOURCES. Would the project: a) 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 1,15, and Game or U.S. Fish and Wildlife Service? 18 X b) Have a substantial or adverse effect on any riparian habitat or 1,15 X other sensitive natural community identified in local or regional plans, policies, and regulations or by the California Department of Fish and Game or US Fish and Wildlife Service? c) Have a substantial adverse effect on federally protected wetlands as defined by Section 404 of the Clean Water Act (including, but 1315 X not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means? d) Interfere substantially with the movement of any native or 1,15 X 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? e) Conflict with any local policies or ordinances protecting 1,2,18 X biological resources, such as a tree preservation policy or ordinance? f) Conflict with the provisions of an adopted Habitat Conservation 1,15 X Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan? 8. MINERAL RESOURCES. Would the project: a) Result in the loss of availability of a known mineral resource that I X would be of value to the region and the residents of the state? b) Result in the loss of availability of a locally important mineral resource recovery site delineated on a local general plan, specific 1 X plan or other land use plan? Issues and Supporting Information Sources Sources Potentially Potentially Less Than No Significant Significant Significant Impact Issues Unless Impact Mitigation Incorporated 9. HAZARDS AND HAZARDOUS MATERIALS. Would the project: a) Create a significant hazard to the public or the environment through the routine transport, use, or disposal of hazardous materials? 1,14 X b) Create a significant hazard to the public or the environment through reasonably foreseeable upset and accident conditions 1,2,14 X involving the release of hazardous materials into the environment? c) Emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one -quarter mile 1,14 X of an existing or proposed school? d) Be located on a site which is included on a list of hazardous materials sites compiled pursuant to Government Code Section 14 X 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 1,14 X airport or public 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 in 1 X the project area? g) Impair implementation of or physically interfere with an adopted 1,14 X emergency response plan or emergency evacuation plan? h) Expose people or structures to a significant risk of loss, injury or death involving wildland fires, including where wildlands are 1114 X adjacent to urbanized areas or where residences are intermixed with wildlands? 10. NOISE. Would the project result in: a) Exposure of persons to or generation of noise levels in excess of 1,2 X standards established in the local general plan or noise ordinance, or applicable standards of other agencies? b) Exposure of persons to or generation of excessive groundborne 1,2 X vibration or groundborne noise levels? c) A substantial permanent increase in ambient noise levels in the 1 X project vicinity above levels existing without the project? d) A substantial temporary or periodic increase in ambient noise 1,2,18 X levels in the project vicinity above levels existing without the project? e) For a project located within an airport land use plan or, where 1,2 X such a plan has not been adopted, within two miles of a public airport or public use airport, 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 1 project expose people residing or working in the project area to 1:1 excessive noise levels? Issues and Supporting Information Sources Sources Potentially Potentially Less Than No Significant Significant Significant Impact Issues Unless Impact Mitigation Incorporated 11. PUBLIC SERVICES. Would the project result in substantial adverse physical impacts associated with the provision of new or physically altered governmental facilities, need for new or physically altered government 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: a) Fire protection? 1,10 X b) Police protection? 1 X c) Schools? 1 X d) Parks? 1 X e) Other public facilities? 1 X 12. UTILITIES AND SERVICE SYSTEMS. Would the project: a) Exceed wastewater treatment requirements of the applicable 1,9,12 X Regional Water Quality Control Board? b) Require or result in the construction of new water or wastewater 1,9,10 X 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 1,9,10 X which could cause significant environmental effects? d) Have sufficient water supplies available to serve the project from 1,9,10 X existing entitlements and resources, or are new or expanded entitlements needed? e) Result in a determination by the wastewater treatment provider 1,9 X which serves or may serve the project that it has adequate capacity to serve the project's projected demand in addition to the provider's existing commitments? f) Be served by a landfill with sufficient permitted capacity to 1,9 X accommodate the project's solid waste disposal needs? g) Comply with federal, state, and local statutes and regulations 1,9 X related to solid waste? 13. AESTHETICS. Would the project: a) Have a substantial adverse effect on a scenic vista? 1,2 X b) Substantially damage scenic resources, including, but not limited 1 X to, trees, rock outcroppings, and historic buildings within a state scenic highway? c) Substantially degrade the existing visual character or quality of 1,2,9 X the site and its surroundings? d) Create a new source of substantial light or glare which would 124 X adversely affect day or nighttime views in the area? 14. CULTURAL RESOURCES. Would the project: a) Create a substantial adverse change in the significance of a 1,4 X historical resource as defined in'15064.5? b) Cause a substantial adverse change in the significance of an 1,4 X archaeological resource pursuant to'15064.5? Issues and Supporting Information Sources Sources Potentially Potentially Less Than No Significant Significant Significant Impact Issues Unless Impact Mitigation Incorporated c) Directly or indirectly destroy a unique paleontological resource 1,4 X or site or unique geological feature? d) Disturb any human remains, including those interred outside of 1,4 X formal cemeteries? 15. RECREATION. a) Would the project increase the use of existing neighborhood and 1,4 X 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 1,4 X construction or expansion of recreational facilities which might have an adverse physical effect on the environment? 16. 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 Department of Conservation as an optional model to use in assessing impacts on agriculture and farmland. Would the project: a) Convert Prime Farmland, Unique Farmland or Farmland of 1 X 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? b) Conflict with existing zoning for agricultural use, or a 1 X Williamson Act contract? c) Involve other changes in the existing environment which, due to their location or nature, could result in conversion of Farmland, 1 X to non-agricultural use? 17. MANDATORY FINDINGS OF SIGNIFICANCE. 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 important examples of the major periods of California history or prehistory? 1,17,18 X b) Does the project have impacts that are individually limited, but X 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)? 1 c) Does the project have environmental effects which will cause substantial adverse effects on human beings, either directly or indirectly? 1 X Initial Study Summary 2838 Adeline Drive 18. SOURCE REFERENCES 1 The City of Burlingame General Plan, Burlingame, California, 1985 and 1984 amendments. 2 City of Burlingame, Municipal Code, Title 25 - Zoning, Burlingame, California, 1995 edition. 3 City of Burlingame City Council, Housing Element, City of Burlingame, Burlingame, California, 1994. 4 1990 Census 5 Department of the Interior, U.S. Geological Survey, San Francisco Bay Region, Sheet 3, 1:125,000, 1971. 6 E. Brabb, E. Pampeyan, and M. Bonilla, Landslide Susceptibility in San Mateo County, San Mateo County, California, 1972. 7 Perkins, Jeanne, Maps Showing Cumulative Damage Potential from Earthquake Ground Shaking, U.S.G.S. Map MF, San Mateo County: California, 1987. 8 April 29, 2003, Preliminary Plan of the Site. 9 Engineering Memo dated May 8, 2003, April 16, 2003 10 Fire Department Memo dated April 30, 2003, April 24, 2003 11 Burlingame Traffic Analyzer, 1988 Edition 12 Map of Approximate Locations of 100 year Flood Areas, from the National Flood Insurance Program Flood Insurance Maps, September 16, 1981 13 BAAQMD CEQA GUIDELINES, Assessing the Air Quality Impacts of Projects and Plans, December, 1995 14 San Mateo County Congestion Management Program, 1997 15 Map of Areas of Special Biological Importance, San Francisco and San Mateo Counties, California, State Department of Fish and Game 16 State of California Hazardous Waste and Substances Sites List, April 1998 17 P. Whitehead and Associates Consulting Engineers, Soils Report, March 11, 2003, dated stamped April 1, 2003 by the Burlingame Planning Department 18 Maguire Tree Care, Arborist Report, March 26, 2003, dated stamped April 1, 2003 by the Burlingame Planning Department 19 Digital image rendering, prepared by Doug Johnson, Fat Box, dated stamped November 10, 2003 and December 22, 2003 by the Burlingame Planning Department 10 Initial Study Summary 2838 Adeline Drive Land use and Planning Summary: The subject property is currently vacant and is proposed for one single family dwelling. The Zoning Code requires a minimum lot size of 10,000 SF for lots annexed to the City of Burlingame after May 31, 1960, where the subject property is 26,576 SF in area. The Zoning Code allows one unit per lot in this area. The project is subject to single family residential design review. The general plan would allow a density of 8 units to the acres and the application is for 1 unit to a half acre. Therefore, this proposal is consistent with the General Plan and zoning requirements. The subject property was once part of the Sisters of Mercy property, which abuts the subject property on the northeast side. The entire Sisters of Mercy campus was annexed from the San Mateo County jurisdiction into the City of Burlingame in the 1970's. The surrounding properties are developed with single family residences, all of which are within unincorporated San Mateo County. The lot slopes between 21 % and 22% from front to rear. Code Section 25.70.025(2)(d) states that the maximum driveway slope shall not exceed 15 percent. The project includes grading and construction retaining walls in order to construct build an access driveway to the more level portion of the lot where the proposed house will be constructed. The maximum slope on the driveway will be 18%. The proposed residence conforms to all measurable requirements of the zoning code; however a special permit is required for an attached garage. The Planning Commission determines compliance with design review criteria. Population and Housing Summary: This site and the surrounding area are planned for low -density residential uses. The proposed infill residential development conforms to the City of Burlingame General Plan and Zoning Code regulations and does not represent any alteration to the planned land use in the area. The project is consistent with the City's Housing Element. The proposed project will create more housing by adding another dwelling unit where there is currently a vacant parcel. Geologic Summary: The site is located in the Burlingame Hills in a semi -urban setting, with most of the lots in vicinity over 10,000 SF in area. The subject property has a steep slope at the front of the property and then gently slopes and levels off toward the rear. It is approximately 110 feet wide by 247 feet deep. The average difference in elevation from the top of the lot to the rear of the lot is 53 feet. The first third of the lot has a 21.1 to 22.1% slope. The site is approximately 3 miles northwest of the San Andreas Fault, and 17 miles northwest of the Hayward Fault, but is not within the Alquist-Priolo zone. There are no known faults on the site. The seismic exposure will be reduced with the incorporation of seismic construction requirements of the California Building Code, 2001 Edition. The USGS maps designate the soil type as br, which is bedrock that varies from well -consolidated sediments to deeply weathered igneous intrusive and extrusive rocks. Under seismic conditions this site is categorized in C zone, and would experience very strong shaking. However, most Burlingame soils are reasonably stable. The applicant's soils report states that soil borings on the property confirm that the site is underlain by colluviums fill over sandstone bedrock. Because of the strong subsurface materials and the absence of subsurface flows, it is unlikely that liquefaction of the foundation soils would occur. The soils report notes that there is some natural overburden material on this steeply sloping site, with some potential for creep. It is suggested that the foundation is to be of a drilled pier and grade beam design, penetrating into the underlying sandstone bedrock material a minimum of 8 feet, with an expected overall depth of 18 feet with a minimum of a 16" diameter. Due to the creep potential on this site the soils engineer states that the piers 11 Initial Study Summary 2838 Adeline Drive shall be designed to resist a lateral active pressure of 50 pounds per cubic foot acting on the top five feet of the pier. There will be no pile driving for the piers. The piers will be drilled and then poured in place. As per San Francisco Bay Regional Water Quality Control Board, all clearing and earth moving activities shall only occur during dry weather, April 15 through November 14. This time line is also suggested in the soils report for this project. To commence construction the site would first need to be cleared of vegetation and shrubs to allow access for the construction of the retaining walls. The retaining walls would be erected prior to the removal of the trees on -site and would increase slope stability. Once the retaining walls are constructed it would allow stabilization for the driveway construction. The construction of the retaining walls and the driveway would then provide easier access for the removals of the trees. While excavation occurs, the temporary shoring shall be required to prevent movement of exposed materials. All excavation and slope cutting will require temporary shoring to be analyzed by an engineer. The retaining walls shall also be designed to resist lateral earth pressure and additional lateral pressures caused by surcharge loads applied at the ground surface behind the walls. The soils reports calls out that any imported fill materials on the site shall be non -expansive materials with a Plasticity Index of 12 or less. The retaining walls would have a sub -drain system consisting of a four inch diameter perforated pipe bedded in drain rock wrapped with filter fabric to a height of two-thirds the height of the wall. The walls would be backfilled and compacted to at least 90 percent relative compaction. Retaining walls shall be waterproofed. The project will be required to meet all the requirements, including seismic standards, of the California Building and Fire Codes, 2001 Edition, as amended by the City of Burlingame, for structural stability. Mitigation: • That there shall be no pilling driving as part of this project. • That the house foundation be a drilled pier and grade beam design, penetrating into the underlying sandstone bedrock material a minimum of 8 feet, with an expected overall depth of 18 feet with a minimum of a 16" diameter. • That the piers shall be designed to resist a lateral active pressure of 50 pounds per cubic foot acting on the top five feet of the pier. • That all clearing and earth moving activities shall only occur during dry weather only, April 15 through November 1, as per the San Francisco Regional Water Quality Control Board and that all NPDES and STOPPP requirements shall be met on the site at all times during construction • That at the commencement of construction, the retaining walls shall be erected prior to the removal of the trees on -site and prior to the grading of the driveway. • That no demolition or grading shall occur until the City Arborist has reviewed and approved all required arborist reports; and during excavation and slope cutting temporary shoring shall be required to prevent movement of exposed materials. All shoring shall be analyzed by licensed engineer, and shall be approved by the City Engineer prior to any construction. 12 Initial Study Summary 2838 Adeline Drive • That the retaining walls shall be designed to resist lateral earth pressure and additional lateral pressures to the levels required by a license soils engineer and approved by the City; caused by surcharge loads applied at the ground surface behind the walls. • That all imported fill materials on the site shall be non -expansive materials with a Plasticity Index of 12 or less. • That all retaining walls shall have a sub -drain system consisting of a four inch diameter perforated pipe bedded in drain rock wrapped with filter fabric to a height of two-thirds the height of the wall. • That all retaining walls shall be backfilled and compacted to at least 90 percent relative compaction. • That all retaining walls shall be waterproofed. • That the project shall be required to meet all the requirements, including seismic standards, of the California Building and Fire Codes, 2001 Edition, as amended by the City of Burlingame, for structural stability; an the construction plans and design shall be approved by the Building Department and all necessary permits issued before any grading, tree removal or construction occurs on the site. Water Summary: This project is an in -fill development project with a new residence on a currently vacant parcel. The subject property is not adjacent to a waterway. The project site is located in Flood Zone C, which is outside the 100-year flood zone. During the soils investigation by the applicant's engineer it was noted that there was some erosion evident from Adeline Drive, but the runoff has ceased due to the construction of a berm at Adeline Drive. No sub -surface flows were found on the site, but maybe present during winter storm episodes. Because of the strong subsurface materials and the absence of subsurface flows, it is unlikely that liquefaction of the foundation soils would occur on this site. There is an existing 3 inch screwed steel waterline in the general vicinity. However because there is no existing water service to this site the applicant had the Burlingame Fire Department perform a flow test on the two nearest hydrants to the subject property, located in front of 2825 and 2839 Adeline Drive in order to determine if there adequate water pressure to supply the domestic water supply for a new single family dwelling on this line. Based upon the results from this test and the calculations done by the applicant's plumber, there is enough pressure on this line to supply the new dwelling without having a potentially significant impact on pressure to existing dwellings in the area. The test results clearly indicate that this line is not large enough to serve the domestic water line and the fire sprinkler system. As an alternative option the application will be supplying water to the fire sprinkler system using the water from the proposed swimming pool that will be located at the rear of the house. The pool will have approximately 36,000 gallons of water when filled. If activated, the pool water will be fed to the fire sprinkler system by a suction pump that will powered from the main electrical service, and will also be connected to the back up generator. The City of Burlingame's Fire Marshal has accepted this alternative as an adequate means of water supply for the fire sprinkler system. 13 Initial Study Summary 2838 Adeline Drive The project will need to have an erosion and sedimentation control plan that describes BMPs, (best management practices) that will be implemented for storm water management and erosion control. This plan will need to be show and describe what type of erosion control measures will be administered to prevent soil, dirt and debris from entering storm drain systems and how these measures will be maintained. These measures may include, but not be limited to, the following; sediment basins or traps, berms, silt fences, straw bale, storm drain inlet protection soil blankets, and covers for soil stock piles. These measures need to be installed to stabilize denuded areas and to maintain temporary erosion controls and sediment control continuously until permanent erosion controls have been established. The site plan should clearly show the property lines; existing and proposed topography; areas to be disturbed by cut and fill; the location for soil storage and disposal areas; and existing vegetation and sensitive areas to be protected. All construction materials and waste, including solid wastes, paints, concrete, petroleum products, chemicals, wash water or sediment, shall be stored, handled and disposed of properly to prevent the discharge of all potential pollutants into stormwater. This information should be noted on the erosion and sedimentation control plan. No vehicles or equipment shall be cleaned, fueled or maintained on -site, except in designed areas in which runoff is contained and treated, and this area should also be clearly shown on the plan. All off -site and on - site runoff shall be diverted around exposed construction areas. How this will be accomplished must be shown on plan and approved by the City prior to commencement of any grading or construction activity on the site. Mitigation: • That the applicant shall connect with the existing 3 inch screwed steel water line on Adeline Drive for the domestic water supply for the new single family dwelling, in accordance with the City of Burlingame Public Works standards. • That the applicant shall use the swimming pool on -site for the water supply for the residential fire sprinkler system, with a suction pump that will powered from the main electrical service, and will also be connected to the back up generator, all system details shall be reviewed and approved to be in accordance with standards acceptable to the City of Burlingame's Fire Marshal prior to issuance of a building permit. • That the applicant shall submit an erosion and sedimentation control plan describing BMPs (Best Management Practices) to be used to prevent soil, dirt and debris from entering the storm drain system; the plan shall include a site plan showing the property lines, existing and proposed topography and slope; areas to be disturbed, locations of cut/fill and soil storage/disposal areas; areas with existing vegetation to be protected; existing and proposed drainage patterns and structures; watercourse or sensitive areas on - site or immediately downstream of a project; and designated construction access routes, Staging areas and washout areas; this plan must be approved by the City Engineer, Public Works Department prior to any grading or construction work on the site. • That the erosion and sedimentation control plans should include notes, specifications, and/or attachments describing the construction operation and maintenance of erosion and sediment control measures, including inspection frequency; methods and schedule for grading, excavation, filling clearing of vegetative cover and mulch, including methods and schedules for planting and fertilization; and provisions for temporary and permanent irrigation. 14 Initial Study Summary 2838 Adeline Drive • That off -site runoff shall be diverted around the construction site and all on -site runoff shall be diverted around exposed construction areas. • That methods and procedures such as sediment basins or traps, earthen dikes or berms, silt fences, straw bale dikes, check dams storm drain inlet protection soil blanket or mats, and covers for soil stock piles to stabilize denuded areas shall be installed to maintain temporary erosion controls and sediment control continuously until permanent erosion controls have been established. • That all construction materials and waste, including solid wastes, paints, concrete, petroleum products, chemicals, wash water or sediment, shall be stored, handled and disposed of properly to prevent the discharge of all potential pollutants into stormwater. • That no vehicles or equipment shall be cleaned, fueled or maintained on -site, except in designed areas which runoff is contained and treated. Air Quality Summary: The proposed application is for one single-family dwelling on an existing vacant site. While this project will accommodate people for habitation where the previous use was as open space and access to a water tank for use by the Sisters of Mercy campus, the change in emissions is insignificant. The subject property is zoned for low -density residential development and with proper adherence to regional air quality requirements during construction, the proposed project will not create any deterioration in the air quality or climate, locally or regionally. There is no demolition of existing structures on this site because it is vacant, so no permits are required from the Bay Area Air Quality Management District. Mitigation: That dust control should be implemented where required during grading, which includes spraying cut areas where there is significant particulate matter created by soil disturbance. Transportation/Circulation Summary: The site is on Adeline Drive, a collector street that provides access to El Camino Real, a regional arterial. This project will not create a permanent substantial increase in the traffic generation in the area. All arterial, collector, and local roadway systems in the City have the capacity to accommodate any incremental traffic or trip generation produced by the proposed increase of one dwelling for the current proposal. The proposed single-family dwelling meets the on -site parking requirement established in the zoning code. Adeline Drive is 50 feet wide, but does not have sidewalk, curbs or gutters. There is a narrow area that provides a vehicular pull out, however vehicular access will be limited to this site until the driveway is constructed. The construction vehicles required for the proposed project may create a temporary impact on public safety, access, and circulation. Once the driveway is constructed there will be direct access onto the site for construction vehicles and tree removal machinery. Biological Resources Summary: The site is currently vacant with a large concentration of trees. Most of the trees on the property are Blue Gum Eucalyptus, but there are also Coast Live Oaks, California Bay Laurel and Acacia. The applicant has submitted an arborist report that was reviewed and found acceptable by the City Arborist. 15 Initial Study Summary 2838 Adeline Drive As part of this proposal the applicant is proposing to remove all of the Eucalyptus on the site. The trees are proposed for removal because they are within the construction area for the proposed house and driveway. The Blue Gunn Eucalyptus are also a non-native species that are very oily and can pose extreme fire danger. They usually serve as a windbreak or screen barrier, but they are not acting as either on this site. The arborist notes that the age and size of the trees make them a poor choice for a landscape tree and as they often shed limbs during high winds, which is another reason not to locate these trees near residences. As observed on the site, they are also overshadowing many of the desirable native Coast Live Oaks on this property. The City Arborist has stated that the after cutting the Eucalyptus that the stumps need to be ground immediately. Immediately after the removal of the trees on this site or no later than 4 weeks after the cutting of the trees, either permanent or temporary measures also needs to be installed to prevent erosion and soil instability on the slope. The arborist's report submitted by the applicant notes that the existing Coast Live Oaks on this property are in overall good health. Tree protection measures must be implemented during construction to protect the Oaks and other trees on site to prevent potentially significant impacts to the health of the trees. These measures include covering the root zones with 4 inches of mulch, and covering them with a layer of plywood to reduce soil compaction around the tree. It is also recommended that the trunks of the oak trees be wrapped with wooden planks with highly visible orange netting wrapped around the planks to attached them to the trunk rather than using nails or screws. If there are low limbs that will be in the way of construction traffic the arborist's recommends trimming the limbs rather than having them ripped off. The arborist states that the Oak trees will benefit from structural pruning and a lowering of the soil grade at the root collar. During construction all clearing limits, easements, setbacks, sensitive or critical areas, buffer zones for trees, and drainage courses are should be clearly delineated with field markers or fencing. The adjacent properties and undisturbed areas should also be protected from construction impacts with vegetative buffer strips, sediment barriers or filters, dikes or mulching. All of tree protection measures should be taken prior to the beginning of tree removal activities, grading and construction and issuance of a building permit. In accordance with the City's Reforestation Ordinance, each lot developed with a single-family residence is required to provide a minimum of 1, 24-inch box -size minimum, non -fruit tree, for every 1,000 SF of living space. The proposed landscape plan for the project complies with the reforestation requirements. The arborist also recommends a reforestation program for this site as part of this project. The landscape plans indicate that the following trees will be planted in 24" box size: 3 Japanese Maples, 5 Southern Magnolias, 7 Coast Live Oaks,10 Carolina Cherry Laurels, 3 Olive Trees, I Jacaranda, and 4 Pittosporum Undulatum. Mitigation: • That within 24 hours after cutting down the Eucalyptus trees on the site, the stumps shall be ground. • That the site shall be terraced, either permanently or temporarily, immediately after the removal of the trees on this site and no later than 4 weeks, after cutting the trees to prevent erosion and soil instability on the slope. • That the root zones of Oak trees to remain on -site shall be covered with 4 inches of mulch, and then covered with a layer of plywood to reduce soil compaction around the tree. • That the trunks of the Oak trees shall be wrapped with wooden planks with highly visible orange netting wrapped around the planks to attached them to the trunk, no nails or screws shall be used for attachment. [L Initial Study Summary 2838 Adeline Drive • That low limbs, identified and marked by a licensed arborist, that will be in the way of construction traffic shall be trimmed as directed by a licensed arborist prior to construction to avoid having them ripped off by construction vehicles. • That all clearing limits, easements, setbacks, sensitive or critical areas, buffer zones trees, and drainage courses are clearly delineated with field markers or fencing installed under the supervision of a licensed arborist and inspected by the City Arborist; and that adjacent properties and undisturbed areas shall be protected from construction impacts with vegetative buffer strips, sediment barriers or filters, dikes or mulching as designed by and installed with the supervision of a licensed arborist to standards approved by the City Arborist. • That all of tree protection measures shall be taken prior to beginning any tree removal activities, grading or construction on the site. • That a licensed arborist, hired by the applicant, shall inspect the construction site once a week or more frequently if necessary and certify in writing to the City Arborist and Planning Department that all tree protection measures are in place and requirements are being met. • That in accordance with the City's Reforestation Ordinance a reforestation program for this site shall include planting the following 24" box size trees: 3 Japanese Maples, 5 Southern Magnolias, 7 Coast Live Oaks, 10 Carolina Cherry Laurels, 3 Olive Trees, 1 Jacaranda, and 4 Pittosporuin Undulatum at the locations shown on the approved landscape plan prior to scheduling the final inspection. • That a licensed arborist shall provide a post -construction maintenance program to the property owners with instructions on how to maintain them and identify warning signs of poor tree health; the property owners shall be responsible for the maintenance of the trees for 3 years after construction is finalled by the City and shall bear the penalty fee should the trees not survive the 3-year period; the trees shall be inspected for compliance twice a year by the City Arborist during the 3-year period. Energy and Mineral Resources Summary: All gas and electric services are in place for service to the homes on the surrounding lots, with capacity to handle the addition of one single-family residence proposed with the current application. The incremental increase to the use of energy is insignificant because the new residence will comply with Title 24 requirements. Hazards Summary: This project has been designed to comply with all applicable zoning regulations. By its residential nature, this project will not be releasing any hazardous materials into the environment and will not interfere with any emergency response or evacuation plans the City of Burlingame may need to implement. There are no known health hazards on the site. Compliance with the California Building and Fire Code requirements as amended by the City of Burlingame will ensure that people in the new structure are not exposed to health hazards or potential health hazards. NPDES (BMP's) are required to ensure that runoff from the site does not contribute to pollution of adjacent waterways. (See mitigations under Geologic Summary) Noise Summary: The site has been undeveloped and vacant for many years. With the development of a single family dwelling there will be increase noise in the area resulting for habitation of another family in this area. The noise will be general residential noise such as vehicles coming to and from the house, sounds from the residents when using the backyard and proposed swimming pool, noises from putting out garbage cans. The new structure 17 Initial Study Summary 2838 Adeline Drive will be compliant with current construction standards, including increased insulation, which also provides for noise attenuation. The construction of the foundation will be a pier and grade beam design, and will not require the driving of piles. However, due to the depth required for the piers, and the large amount of drilling is required for this project. The hours for drilling shall be limited to Monday through Saturday from 8:00 a.m. to 4:00 p.m., with no drilling on Sundays or Holidays. The remainder of the construction must abide by the construction hours established in the municipal code, which limits construction hours to 7:00 a.m. to 7:00 p.m. Monday through Friday and 9:00 a.m. to 6:00 p.m. on Saturdays and 10:00 a.m. to 6:00 p.m. on Sundays and holidays. Mitigation: • That drilling of piers shall be limited to Monday through Saturday 8:00 a.m. to 4:00 p.m., with no drilling on Sundays or Holidays. All other construction shall be done in accordance with the California Building Code requirements as amended by the City of Burlingame, and limits to hours of construction imposed by the City of Burlingame Municipal Code, 7:00 a.m. and 7:00 p.m. on weekdays, 9:00 a.m. and 6:00 p.m. on Saturdays and 10:00 a.m. to 6:00 p.m. on Sundays and holidays. Public Services Summary: The subject property is a vacant lot that is located within the City of Burlingame jurisdiction. However, all of the surrounding properties are within unincorporated San Mateo County. There is an agreement with San Mateo County that the City of Burlingame will respond to all police and fire calls in unincorporated areas of San Mateo County in the Burlingame Hills areas. Burlingame Fire Station 35 is located at 2832 Hillside Drive, just a few blocks away from the subject property and would be the first to respond to emergencies at this site with an excellent response time. The subject property is currently vacant with no vehicular access. The lot slopes steeply from Adeline Drive for approximately the first third of the lot until it levels off to the area where the single family dwelling is proposed to be built. Due to the 20-22% slope on this lot, the driveway proposed to access the house will meander and will not accommodate the turning radius for a fire truck. The City Fire Marshal is requiring a paved throat at the top of the driveway that will accommodate a single fire engine. The applicant is proposing to have a 20' wide by 40' deep paved turnout at the top of the driveway that will allow parking for a fire truck on -site, without blocking circulation on Adeline Drive. The Fire Marshal has also required installation of stairs to emergency personnel direct access down the slope from Adeline Drive to the house. The plans also include a staircase from the turnout down to the lower driveway to allow direct access to the structure for emergency response personnel. The Fire Marshal has requested that this staircase be lighted at tall times for safe passage. Mitigation: • That the applicant is shall construct a minimum paved turnout of 20' wide by 40' deep at the top of the driveway to provide parking for a fire truck on -site. • That the applicant shall construct a staircase to code standards from the turnout at the top of the driveway to the lower driveway to allow direct pedestrian access to the structure for emergency response personnel. • That the staircase from the turnout at the driveway entrance to the lower driveway shall be lighted from dusk to dawn daily for safe passage. 18 Initial Study Summary 2838 Adeline Drive Utilities and Service Systems Summary: The subject property is vacant and there are no utilities on -site. There is an existing 8 inch sewer on Adeline Drive that serves the existing residences on the block. This line has the capacity to accommodate the new single family dwelling. The applicant will be required have a sewer pump to pump wastewater up to the existing sewer main on Adeline Drive. To prevent flooding a backflow prevention device is required to be installed as per Ordinance Number 1710, effective June 18, 2003. The site is sloped steeply from the front to the rear away from the street. Storm drainage is normally required to be drained to the street frontage, however in this case that is not an appropriate solution. Storm drainage shall be designed to flow to the rear of the subject property where there is a drainage channel that flows to Mills Creek, which is located approximately 600 feet north of the subject property. Because of this arrangement NPDES and STOPPP compliance is very important. (See Water Summary section). The current solid waste service provider is BFI, which sends solid waste collected in Burlingame to Ox Mountain Landfill. Construction activities would generate waste during the construction phase. The general contractor will be required to recycle and to reduce the waste stream by transporting the construction waste separately. Solid waste generated during operation of the project would be typical for residential use, and would not be considered substantial. The City of Burlingame has recently adopted an ordinance requiring recycling of construction waste and demolition debris. The ordinance requires that 60 percent of the total waste tonnage generated from project construction shall be diverted from the waste stream. The applicant is required to complete a Recycling and Waste Reduction Form to be reviewed and approved by the Chief Building Official. It is required that records shall be kept and submitted to the City prior to the final inspection of the project. Mitigation: • That the contractor shall submit the "Recycling and Waste Reduction" form to the building department to be approved by the Chief Building Official that demonstrates how that 60 percent of the total waste tonnage generated from project construction shall be diverted from the waste stream and the property owner shall be responsible for the implementation of this plan. All runoff created during construction and future discharge from the site will be required to meet National Pollution Discharge Elimination System (NPDES) standards. Aesthetics Summary: The site is currently vacant, so the proposed house will have a visual impact on the existing views. The project is subject to residential design review approval by the Planning Commission. The proposed house will be cover 16.3% of the lot and will be 7,797 SF in area. The height as measured from adjacent grade, will be 25'6" and will be setback 63' from the street and —8.61' below the average top of curb. The exterior material will be cedar shingle siding, with a sandstone water table, and a composition roof. The attached garage will have stucco exterior. The windows will have divided lights with wood trim. Exterior lighting provided on the lot will be required to conform to the City's Illumination Ordinance (1477), which requires all illumination to be directed onto the site. Just beyond the rear property line, the Sister's of Mercy have a pedestrian trail on their property which they allow the public to use. During environmental scoping for this project the Planning Commission requested that the applicant look at the view impact of this project, particularly the rear elevations, from the trail. The applicant 19 Initial Study Summary 2838 Adeline Drive has submitted the attached digital images showing the proposed structure from three different vantage points, along with the flowing summary: Prepared by: Doug Johnson of Fat Box Location A The existing photo is taken from the neighboring property. The oaks to remain area shaded by the existing eucalyptus trees. The oaks will develop more fully when the eucalyptus are removed. The oak shown to the left at the initial planting will remain. The tree to the right is a new olive tree located inside the driveway turn. It has a moderate growth rate and an average height of approximately 20 feet. All ground covering is new. After 5 years the oak tree and the olive tree should be more full and the ground covers should fill in. Location B The existing photo provided is taken from the ground level. The digital images are from a point further above the ground level to obtain a better view. The existing photo shows some of the eucalyptus trees to be removed. These trees will be in a flat area of the driveway at the lower garage. The initial planting shows several of the Carolina Cherry Laurels to be planted at the property line fence. After 5 years, these trees should fill in as an effective screen as they have a fast growth rate and an average height of approximately 20 feet. Location C The existing photo was taken from the tail on the property owned by the Sisters of Mercy. The eucalyptus trees shown will be removed. Some trees in the foreground are on the neighboring property and will remain. At the initial planting, the new wall will be built with a chain link fence on top. The house will be visible over/through the Waxleaf Privet. However, after approximately 5 years, the newly planted Waxleaf Privet should block most of the view form the tail as this shrub grows at a fast rate of approximately 12 feet tall. In summary, with the proposed building placement and landscape plan, views from surrounding properties will be minimally impacted. The views from Adeline Drive, from the neighboring property and from the Sisters of Mercy trail at the rear will be filled vegetation from growth from the new plantings. Although the most obvious visual change will be from Adeline Drive where additional paving will be evident with the construction of the driveway. The neighborhood is composed of mostly two-story dwellings. The subject property will be consistent with the development in this area. Mitigation: 0 That this project shall comply with Ordinance No. 1477, Exterior Illumination Ordinance. That the applicant shall provided landscaping on the site as shown on the plans approved by the Planning Commission. All shall be drip irrigated and installed prior to scheduling the final building inspection. That the project shall obtain Planning Commission design review approval before any tree removal, grading or construction takes place on the site. Cultural Resources Summary: Based on other construction activity in the area, it is unlikely that any historical relics will be encountered during construction. Should any archeological or historic, cultural, or ethnic resources be discovered during construction, work will be halted until they are fully investigated. 20 Initial Study Summary Mitigation: 2838 Adeline Drive That should any cultural resources be discovered during construction, all work shall be halted until they are fully investigated by a professional accepted as qualified by the City Planner and the recommendations of the expert have been executed to the satisfaction of the City. Recreation Summary: The proposed project does not replace or destroy any existing recreational facilities, nor does it displace any proposed or planned recreational opportunities for the City of Burlingame. The site involved in this project is not presently zoned or used for recreational uses. The applicant has no intention of accessing the subject property from Sisters of Mercy trail located at the rear. Mitigation: That if the applicant finds it necessary to access the subject property from the Sisters of Mercy trail, the applicant shall be responsible for repairing any damage to the trail. SUMMARY OF MITIGATION MEASURES: 1. That there shall be no pilling driving as part of this project. 2. That the house foundation be a drilled pier and grade beam design, penetrating into the underlying sandstone bedrock material a minimum of 8 feet, with an expected overall depth of 18 feet with a minimum of a 16" diameter. 3. That the piers shall be designed to resist a lateral active pressure of 50 pounds per cubic foot acting on the top five feet of the pier. 4. That all clearing and earth moving activities shall only occur during dry weather only, April 15 through November 1, as per the San Francisco Regional Water Quality Control Board and that all NPDES and STOPPP requirements shall be met on the site at all times during construction 5. That at the commencement of construction, the retaining walls shall be erected prior to the removal of the trees on -site and prior to the grading of the driveway. 6. That no demolition or grading shall occur until the City Arborist has reviewed and approved all required arborist reports; and during excavation and slope cutting temporary shoring shall be required to prevent movement of exposed materials. All shoring shall be analyzed by licensed engineer, and shall be approved by the City Engineer prior to any construction. 7. That the retaining walls shall be designed to resist lateral earth pressure and additional lateral pressures to the levels required by a license soils engineer and approved by the City; caused by surcharge loads applied at the ground surface behind the walls. That all imported fill materials on the site shall be non -expansive materials with a Plasticity Index of 12 or less. 21 initial AuIv Summary 2838 Adeline Drive 9. 1'liat all retaining walls shall have a sub -drain system consisting of a four inch diameter perforated pipe bcdded in drain rock wrapped with filter fabric to a height of two-thirds the height of the wall. 10. That all retaining walls shall be backfilled and compacted to at least 90 percent relative compaction. 11. That all retaining walls shall be waterproofed. 12. '1'liat the project shall be required to meet all the requirements, including seismic standards, of the California Building and Fire Codes, 2001 Edition, as amended by the City of Burlingame, for structural stability; an the construction plans and design shall be approved by the Building Department and all necessary permits issued before any grading, tree removal or construction occurs on the site. 13. That the applicant shall connect with the existing 3 inch screwed steel water line on Adeline Drive for the domestic water supply for the new single family dwelling, in accordance with the City of Burlingame public Works standards. 14. That the applicant shall use the swimming pool on -site for the water supply for the residential fire sprinkler system, with a suction pump that will powered from the main electrical service, and will also be connected to the back up generator, all system details shall be reviewed and approved to be in accordance with standards acceptable to the City of Burlingame's Fire Marshal prior to issuance of a building permit. 15. That the applicant shall submit an erosion and sedimentation control plan describing BMPs (Best Management Practices) to be used to prevent soil, dirt and debris from entering the storm drain system; the plan shall include a site plan showing the property lines, existing and proposed topography and slope; areas to be disturbed, locations of cut/fill and soil storage/disposal areas; areas with existing vegetation to be protected; existing and proposed drainage patterns and structures; watercourse or sensitive areas on - site or immediately downstream of a project; and designated construction access routes, Staging areas and washout areas; this plan must be approved by the City Engineer, Public Works Department prior to any grading or construction work on the site. 16. That the erosion and sedimentation control plans should include notes, specifications, and/or attachments describing the construction operation and maintenance of erosion and sediment control measures, including inspection frequency; methods and schedule for grading, excavation, filling clearing of vegetative cover and mulch, including methods and schedules for planting and fertilization; and provisions for temporary and permanent irrigation. 17. That off -site runoff shall be diverted around the construction site and all on -site runoff shall be diverted around exposed construction areas. 18. That methods and procedures such as sediment basins or traps, earthen dikes or berms, silt fences, straw bale dikes, check dams storm drain inlet protection soil blanket or mats, and covers for soil stock piles to stabilize denuded areas shall be installed to maintain temporary erosion controls and sediment control continuously until permanent erosion controls have been established. 22 Initial Study Summary 2838 Adeline Drive 19. That all construction materials and waste, including solid wastes, paints, concrete, petroleum products, chemicals, wash water or sediment, shall be stored, handled and disposed of properly to prevent the discharge of all potential pollutants into stormwater. 20. That no vehicles or equipment shall be cleaned, fueled or maintained on -site, except in designed areas which runoff is contained and treated. 21. That dust control should be implemented where required during grading, which includes spraying cut areas where there is significant particulate matter created by soil disturbance. 22. That within 24 hours after cutting down the Eucalyptus trees on the site, the stumps shall be ground. 23. That the site shall be terraced, either permanently or temporarily, immediately after the removal of the trees on this site and no later than 4 weeks, after cutting the trees to prevent erosion and soil instability on the slope. 24. That the root zones of Oak trees to remain on -site shall be covered with 4 inches of mulch, and then covered with a layer of plywood to reduce soil compaction around the tree. 25. That the trunks of the Oak trees shall be wrapped with wooden planks with highly visible orange netting wrapped around the planks to attached them to the trunk, no nails or screws shall be used for attachment. 26. That low limbs, identified and marked by a licensed arborist, that will be in the way of construction traffic shall be trimmed as directed by a licensed arborist prior to construction to avoid having them ripped off by construction vehicles. 27. That all clearing limits, easements, setbacks, sensitive or critical areas, buffer zones trees, and drainage courses are clearly delineated with field markers or fencing installed under the supervision of a licensed arborist and inspected by the City Arborist; and that adjacent properties and undisturbed areas shall be protected from construction impacts with vegetative buffer strips, sediment barriers or filters, dikes or mulching as designed by and installed with the supervision of a licensed arborist to standards approved by the City Arborist. 28. That all of tree protection measures shall be taken prior to beginning any tree removal activities, grading or construction on the site. 29. That a licensed arborist, hired by the applicant, shall inspect the construction site once a week or more frequently if necessary and certify in writing to the City Arborist and Planning Department that all tree protection measures are in place and requirements are being met. 30. That in accordance with the City's Reforestation Ordinance a reforestation program for this site shall include planting the following 24" box size trees: 3 Japanese Maples, 5 Southern Magnolias, 7 Coast Live Oaks, 10 Carolina Cherry Laurels, 3 Olive Trees, 1 Jacaranda, and 4 Pittosporum Undulatum at the locations shown on the approved landscape plan prior to scheduling the final inspection. 23 Initial Study Summary 2838 Adeline Drive 31. That a licensed arborist shall provide a post -construction maintenance program to the property owners with instructions on how to maintain them and identify warning signs of poor tree health; the property owners shall be responsible for the maintenance of the trees for 3 years after construction is finalled by the City and shall bear the penalty fee should the trees not survive the 3-year period; the trees shall be inspected for compliance twice a year by the City Arborist during the 3-year period. 32. That drilling of piers shall be limited to Monday through Saturday 8:00 a.m. to 4:00 p.m., with no drilling on Sundays or Holidays. All other construction shall be done in accordance with the California Building Code requirements as amended by the City of Burlingame, and limits to hours of construction imposed by the City of Burlingame Municipal Code, 7:00 a.m. and 7:00 p.m. on weekdays, 9:00 a.m. and 6:00 p.m. on Saturdays and 10:00 a.m. to 6:00 p.m. on Sundays and holidays. 33. That the applicant is shall construct a minimum paved turnout of 20' wide by 40' deep at the top of the driveway to provide parking for a fire truck on -site. 34. That the applicant shall construct a staircase to code standards from the turnout at the top of the driveway to the lower driveway to allow direct pedestrian access to the structure for emergency response personnel. 35. That the staircase from the turnout at the driveway entrance to the lower driveway shall be lighted from dusk to dawn daily for safe passage. 36. That the contractor shall submit the "Recycling and Waste Reduction" form to the building department to be approved by the Chief Building Official that demonstrates how that 60 percent of the total waste tonnage generated from project construction shall be diverted from the waste stream and the property owner shall be responsible for the implementation of this plan. 37. All runoff created during construction and future discharge from the site will be required to meet National Pollution Discharge Elimination System (NPDES) standards. 38. That this project shall comply with Ordinance No. 1477, Exterior Illumination Ordinance. 39. That the applicant shall provided landscaping on the site as shown on the plans approved by the Planning Commission. All shall be drip irrigated and installed prior to scheduling the final building inspection. 40. That the project shall obtain Planning Commission design review approval before any tree removal, grading or construction takes place on the site. 41. That should any cultural resources be discovered during construction, all work shall be halted until they are fully investigated by a professional accepted as qualified by the City Planner and the recommendations of the expert have been executed to the satisfaction of the City. 42. That if the applicant finds it necessary to access the subject property from the Sisters of Mercy trail, the applicant shall be responsible for repairing any damage to the trail. 24 ADDENDUM FOR MITIGATED NEGATIVE DECLARATION FOR 2838 ADELINE DRIVE ND-532 P RESPONSE TO PLANNING COMMISSION COMMENTS A. INTRODUCTION This Mitigated Negative Declaration addendum has been prepared in compliance with Section 15164 of the implementing guidelines of the California Environmental Quality Act (CEQA Guidelines), which permits a lead agency (in this case, the City of Burlingame) to prepare an addendum to the previously prepared mitigated negative declaration if some changes or additions to that mitigated negative declaration are necessary, but none of the changes are sufficiently substantial to warrant preparation of a new (or — "subsequent") mitigated negative declaration pursuant to Section 15162 of the CEQA Guidelines. As approved by CEQA Guidelines Section 15164, this addendum maybe included in, or attached to the Mitigated Negative Declaration, but it need not be circulated for public review. B. SUMMARY On February 9, 2004, the Planning Commission reviewed a Mitigated Negative Declaration for the proposed construction of a new two and one half story single family dwelling with an attached garage at 2838 Adeline Drive. The Planning Commission expressed concern that the Mitigated Negative Declaration did not include any analysis of the impact of removing the stand of trees on this site on the long distance views, which the General Plan states these distant views of hillside areas are to be protected. They wanted to make sure that the change is being evaluated with this proj ect. C. ADDENDUM TO AETHSETICS SUMMARY The site is currently vacant, so the proposed house will have a visual impact on the existing views. As requested by the Planning Commission after review of the published Mitigated Negative Declaration for this project, the applicant has provided visual analysis of the impact on long distance views due to the removal of the trees on this currently vacant property and the construction of a new single family dwelling. The applicant took photographs from two vantage points, from the parking lot at the Kohl Mansion on the Sisters of Mercy property, taken from approximately 500-600' away from the subject property, and from Hillside Drive, above the subj ect property, taken from approximately 1,000' away from the subject property. From both points you can see the canopy of the existing grove of Eucalyptus trees on the subject property. Photographic imaging was done showing the view from the two points with the canopy of the trees removed. The visual analysis shows that the amount of open space, open sky view area will be increased with the removal of the trees on the subject property. Because the proposed house will be located on the lower portion of the lot it will not be visible from the sites where the distant view was analyzed. Therefore, there will be no significant impact on long distance views as a result of this project, the removal of trees and the construction of the new single family dwelling. No additional mitigation measures are necessary. CITY o., CITY OF BURLINGAME E PLANNING DEPARTMENT By.Feu• N�q• M 501 PRIMROSE ROAD BURLINGAME, CA 94010 -<.Z TEL: (650) 558-7250 Site: 2838 ADELINE DRIVE Application for a mitigated negative declaration, design review and special permit for an attached garage for a new two and half story single family dwelling at: 2838 ADELINE DRIVE, zoned R-1. (APN: 027-091-080). The City of Burlingame Planning Commission announces the following public hearing on Monday, March 8, 2004 at 7:00 P.M. in the City Hall Council Chambers located at 501 Primrose Road, Burlingame, California. Mailed: February 27, 2004 (Please refer to other side) A copy of the a] to the meeting Burlingame, Cal If you chal ge raising onl ho: described i t at or prior t t Property o ers tenants ab t tl 558-7250. and �� Margaret rc City Planner PUBLIC HEARING NOTICE CITY OF BURLINGAME ME an o , y be reviewed prior Plaitl>; ) pa�� 1 Primrose Road, PU BLUE (Please refer to other side) ICE limited to is hearing, to the city ming their call (650) RESOLUTION APPROVING MITIGATED NEGATIVE DECLARATION, DEISGN REVIEW AND SPECIAL PERMIT RESOLVED, by the Planning Commission of the City of Burlingame that: WHEREAS, a mitigated negative declaration has been proposed and application has been made for design review and special permit to construct a new two and a half story single family dwelling with an attached garage at 2838 Adeline Drive, zoned R-1, Michael W. and Donna A. Gaul, property owners, APN: 027-091-080; WHEREAS, said matters were heard by the Planning Commission of the City of Burlingame on March 8, 2004, at which time it reviewed and considered the staff report and all other written materials and testimony presented at said hearing; NOW, THEREFORE, it is RESOLVED and DETERMINED by this Planning Commission that: 1. On the basis of the Initial Study and the documents submitted and reviewed, and comments received and addressed by this commission, it is hereby found that there is no substantial evidence that the project set forth above will have a significant effect on the environment, and mitigated negative declaration, per Mitigated Negative Declaration No. ND-532-P, is hereby approved. 2. Said mitigated negative declaration, design review and special permit are approved, subject to the conditions set forth in Exhibit "A" attached hereto. Findings for such mitigated negative declaration, design review and special permit are set forth in the minutes and recording of said meeting. 3. It is further directed that a certified copy of this resolution be recorded in the official records of the County of San Mateo. CHAIRMAN I, , Secretary of the Planning Commission of the City of Burlingame, do hereby certify that the foregoing resolution was introduced and adopted at a regular meeting of the Planning Commission held on the 8th day of March, 2004, by the following vote: AYES: COMMISSIONERS: NOES: COMMISSIONERS: ABSENT: COMMISSIONERS: SECRETARY EXHIBIT "A" Conditions of approval for mitigated negative declaration, design review and special permit. 2838 Adeline Drive effective March 18, 2004 1. that the project shall be built as shown on the plans submitted to the Planning Department date stamped April 29, 2003, Sheets 1 thru 8, site plan, floor plans, roof plan, and building elevations, and Sheet L1.0 and L2.0 landscape plan and erosion control plan; 2. that the applicant shall adhere to the construction phasing schedule listed in the applicants "Calendar of Operations" , however not necessarily the dates, which may shift for various reasons; 3. that the applicant shall install a walkway in front of the property to a standard acceptable to Public Works Department; 4. that any changes to the size or envelope of the basement, first or second floors, which would include adding or enlarging a dormer(s), moving or changing windows and architectural features or changing the roof height or pitch, shall be subject to design review; 5. that the project shall comply with the Construction and Demolition Debris Recycling Ordinance which requires affected demolition, new construction and alteration projects to submit a Waste Reduction Plan and meet recycling requirements; any partial or full demolition of a structure, interior or exterior, shall require a demolition permit; 6. that the conditions of the Fire Marshal's April 24 and 30, 2003 memos, City Engineer's April 16, 2003 and May 8, 2003 memos, and City Arborist's April 11, 2003 memo shall be met; 7. that prior to scheduling the roof deck inspection, a licensed surveyor shall shoot the height of the roof ridge and provide certification of that height; 8. that prior to scheduling the framing inspection, the project architect, engineer or other licensed professional shall provide architectural certification that the architectural details such as window locations and bays are built as shown on the approved plans; if there is no licensed professional involved in the project, the property owner or contractor shall provide the certification under penalty of perjury; 9. that prior to final inspection, Planning Department staff will inspect and note compliance of the architectural details (trim materials, window type, etc.) to verify that the project has been built according to the approved Planning and Building plans; 10. that all air ducts, plumbing vents, and flues shall be combined, where possible, to a single termination and installed on the portions of the roof not visible from the street; and that these venting details shall be included and approved in the construction plans before a Building permit is issued; Conditions of approval for mitigated negative declaration, design review and special permit. 2838 Adeline Drive Page 2 11. That there shall be no pile driving as part of this project; 12. That the house foundation be a drilled pier and grade beam design, penetrating into the underlying sandstone bedrock material a minimum of 8 feet, with an expected overall depth of 18 feet with a minimum of a 16" diameter; 13. That the piers shall be designed to resist a lateral active pressure of 50 pounds per cubic foot acting on the top five feet of the pier; 14. That all clearing and earth moving activities shall only occur during dry weather only, April 15 through November 1, as per the San Francisco Regional Water Quality Control Board and that all NPDES and STOPPP requirements shall be met on the site at all times during construction; 15. That at the commencement of construction, the retaining walls shall be erected prior to the removal of the trees on -site and prior to the grading of the driveway; 16. That no demolition or grading shall occur until the City Arborist has reviewed and approved all required arborist reports; and during excavation and slope cutting temporary shoring shall be required to prevent movement of exposed materials. All shoring shall be analyzed by licensed engineer, and shall be approved by the City Engineer prior to any construction; 17. That the retaining walls shall be designed to resist lateral earth pressure and additional lateral pressures to the levels required by a license soils engineer and approved by the City; caused by surcharge loads applied at the ground surface behind the walls; 18. That all imported fill materials on the site shall be non -expansive materials with a Plasticity Index of 12 or less; 19. That all retaining walls shall have a sub -drain system consisting of a four inch diameter perforated pipe bedded in drain rock wrapped with filter fabric to a height of two-thirds the height of the wall; 20. That all retaining walls shall be backfilled and compacted to at least 90 percent relative compaction; 21. That all retaining walls shall be waterproofed; 22. That the project shall be required to meet all the requirements, including seismic standards, of the California Building and Fire Codes, 2001 Edition, as amended by the City of Burlingame, for structural stability, an the construction plans and design shall be approved by the Building Department and all necessary permits issued before any grading, tree removal or construction occurs on the site; Conditions of approval for mitigated negative declaration, design review and special permit. 2838 Adeline Drive Page 3 23. That the applicant shall connect with the existing 3 inch screwed steel water line on Adeline Drive for the domestic water supply for the new single family dwelling, in accordance with the City of Burlingame Public Works standards; 24. That the applicant shall use the swimming pool on -site for the water supply for the residential fire sprinkler system, with a suction pump that will powered from the main electrical service, and will also be connected to the back up generator, all system details shall be reviewed and approved to be in accordance with standards acceptable to the City of Burlingame's Fire Marshal prior to issuance of a building permit; 25. That the applicant shall submit an erosion and sedimentation control plan describing BMPs (Best Management Practices) to be used to prevent soil, dirt and debris from entering the storm drain system; the plan shall include a site plan showing the property lines, existing and proposed topography and slope; areas to be disturbed, locations of cut/fill and soil storage/disposal areas; areas with existing vegetation to be protected; existing and proposed drainage patterns and structures; watercourse or sensitive areas on -site or immediately downstream of a project; and designated construction access routes, Staging areas and washout areas; this plan must be approved by the City Engineer, Public Works Department prior to any grading or construction work on the site; 26. That the erosion and sedimentation control plans, should include notes, specifications, and/or attachments describing the construction operation and maintenance of erosion and sediment control measures, including inspection frequency; methods and schedule for grading, excavation, filling clearing of vegetative cover and mulch, including methods and schedules for planting and fertilization; and provisions for temporary and permanent irrigation; 27. That off -site runoff shall be diverted around the construction site and all on -site runoff shall be diverted around exposed construction areas; 28. That methods and procedures such as sediment basins or traps, earthen dikes or berms, silt fences, straw bale dikes, check dams storm drain inlet protection soil blanket or mats, and covers for soil stock piles to stabilize denuded areas shall be installed to maintain temporary, erosion controls and sediment control continuously until permanent erosion controls have been established; 29. That all construction materials and waste, including solid wastes, paints, concrete, petroleum products, chemicals, wash water or sediment, shall be stored, handled and disposed of properly to prevent the discharge of all potential pollutants into stormwater; 30. That no vehicles or equipment shall be cleaned, fueled or maintained on -site, except in designed areas which runoff is contained and treated; Conditions of approval for mitigated negative declaration, design review and special permit. 2838 Adeline Drive Page 4 31. That dust control should be implemented where required during grading, which includes spraying cut areas where there is significant particulate matter created by soil disturbance; 32. That within 24 hours after cutting down the Eucalyptus trees on the site, the stumps shall be ground; 33. That the site shall be terraced, either permanently or temporarily, immediately after the removal of the trees on this site and no later than 4 weeks, after cutting the trees to prevent erosion and soil instability on the slope; 34. That the root zones of Oak trees to remain on -site shall be covered with 4 inches of mulch, and then covered with a layer of plywood to reduce soil compaction around the tree; 35. That the trunks of the Oak trees shall be wrapped with wooden planks with highly visible orange netting wrapped around the planks to attached them to the trunk, no nails or screws shall be used for attachment; 36. That low limbs, identified and marked by a licensed arborist, that will be in the way of construction traffic shall be trimmed as directed by a licensed arborist prior to construction to avoid having them ripped off by construction vehicles; 37. That all clearing limits, easements, setbacks, sensitive or critical areas, buffer zones trees, and drainage courses are clearly delineated with field markers or fencing installed under the supervision of a licensed arborist and inspected by the City Arborist; and that adjacent properties and undisturbed areas shall be protected from construction impacts with vegetative buffer strips, sediment barriers or filters, dikes or mulching as designed by and installed with the supervision of a licensed arborist to standards approved by the City Arborist; 38. That all of tree protection measures shall be taken prior to beginning any tree removal activities, grading or construction on the site; 39. That a licensed arborist, hired by the applicant, shall inspect the construction site once a week or more frequently if necessary and certify in writing to the City Arborist and Planning Department that all tree protection measures are in place and requirements are being met; 40. That in accordance with the City's Reforestation Ordinance a reforestation program for this site shall include planting the following 24" box size trees: 3 Japanese Maples, 5 Southern Magnolias,13 Coast Live Oaks, 7 Swampmyrtles, 6 Western Redbuds, 6 Strawberry Trees, 1 Jacaranda, 4 Pittosporum Undulatum and 16 Tree Ferns at the locations shown on the approved landscape plan prior to scheduling the final inspection; Conditions of approval for mitigated negative declaration, design review and special permit. 2838 Adeline Drive Page 5 41. That a licensed arborist shall provide a post -construction maintenance program to the property owners with instructions on how to maintain them and identify warning signs of poor tree health; the property owners shall be responsible for the maintenance of the trees for 3 years after construction is finalled by the City and shall bear the penalty fee should the trees not survive the 3-year period; the trees shall be inspected for compliance twice a year by the City Arborist during the 3-year period; 42. That drilling of piers shall be limited to Monday through Saturday 8:00 a.m. to 4:00 p.m., with no drilling on Sundays or Holidays. All other construction shall be done in accordance with the California Building Code requirements as amended by the City of Burlingame, and limits to hours of construction imposed by the City of Burlingame Municipal Code, 7:00 a.m. and 7:00 p.m. on weekdays, 9:00 a.m. and 6:00 p.m. on Saturdays and 10:00 a.m. to 6:00 p.m. on Sundays and holidays; 43. That the applicant is shall construct a minimum paved turnout of 20' wide by 40' deep at the top of the driveway to provide parking for a fire truck on -site; 44. That the applicant shall construct a staircase to code standards from the turnout at the top of the driveway to the lower driveway to allow direct pedestrian access to the structure for emergency response personnel; 45. That the staircase from the turnout at the driveway entrance to the lower driveway shall be lighted from dusk to dawn daily for safe passage; 46. That the contractor shall submit the "Recycling and Waste Reduction" form to the building department to be approved by the Chief Building Official that demonstrates how that 60 percent of the total waste tonnage generated from project construction shall be diverted from the waste stream and the property owner shall be responsible for the implementation of this plan; 47. All runoff created during construction and future discharge from the site will be required to meet National Pollution Discharge Elimination System (NPDES) standards; 48. That this project shall comply with Ordinance No. 1477, Exterior Illumination Ordinance; 49. That the applicant shall provided landscaping on the site as shown on the plans approved by the Planning Commission. All shall be drip irrigated and installed prior to scheduling the final building inspection; 50. That the project shall obtain Planning Commission design review approval before any tree removal, grading or construction takes place on the site; Conditions of approval for mitigated negative declaration, design review and special permit. 2838 Adeline Drive Page 6 51. That should any cultural resources be discovered during construction, all work shall be halted until they are fully investigated by a professional accepted as qualified by the City Planner and the recommendations of the expert have been executed to the satisfaction of the City; and 52. That if the applicant finds it necessary to access the subject property from the Sisters of Mercy trail, the applicant shall be responsible for repairing any damage to the trail. �qs Rol � 04 Si ERS OF 141% MERCY 7 Nt 17 Unincorporated .,' tco Ma Nunty c - 2852 R >' + 2848 2838 2836 2849 2843 2832 2839 2828 A'35 Ab 40, v A 2831 71 HILLSIDE DRIVE Uj incorho r(-jted,,,,. Sa Ai IV � A a _'te 0 x unty - Item # Design Review Study City of Burlingame Mitigated Negative Declaration, Design Review, and Special Permit for an Attached Garage for a New Single Family Dwelling Address: 2838 Adeline Drive Meeting Date: 2/9/04 Request: Mitigated negative declaration, design review and a special permit for an attached garage for a new two-story single family dwelling, zoned R-1. Applicant/Property Owner/Designer : Michael Gaul APN: 027-091-080 Lot Area: 26,576 SF (0.61 acres) General Plan: Low Density Residential Zoning: R-1 Adjacent Development: Residential/Religious Institution CEQA Status: Refer to attached Mitigated Negative Declaration No. ND -532-P Current Use: Vacant lot Proposed Use: Single family dwelling Allowable Use: Single family dwelling Summary: The applicant is proposing to construct a new two and one half story single family dwelling with an attached garage at 2838 Adeline Drive, zoned R-1. The subject property is currently vacant and heavily vegetated with shrubs and trees, predominantly Blue Gum Eucalyptus. There are also Coast Live Oaks, California Bay Laurel and Acacia on this site. As part of the development of this parcel the applicant will be removing 40 trees from this site, 15 of which are of protected size, most of which are Eucalyptus trees. Burlingame municipal code section 11.06.020(f) defines a protected tree as any tree with a circumference of 48 inches or more when measured 54 inches above natural grade. 110; e of .-O-een 21 % and 22%. Code section 25.70.025(2)(d) states that the maximum driveway ,..ope shall not exceed 15 per it. 'I ne project includes grading and construction of retaining walls on this slope in order to build an access driveway to the more level portion of the lot where the proposed house will be constructed. This project is not exempt from CEQA review because of the trees and the slope on the lot. The project requires the following planning approvals: Mitigated negative declaration, a determination that with mitigation measures there are no significant environmental effects as a result of this project; • Residential design review (C.S. 25.57.010(a)); and • Special permit for an attached garage (C.S. 25.28.035(a)). Summary: The proposed house would cover 16.3% (4,343 SF) of the 26,576 SF lot, where 40% (10,630 SF) is the maximum lot coverage allowed. The house would have a total floor area of 7,797 SF (0.29 FAR) where 8,000 SF (0.30 FAR) is the maximum allowed. There would be three covered parking spaces provided for this five bedroom house in the three attached garages. Mitigated Negative Declaration, Design Review, and Special Permit 2838 Adeline Drive PROPOSED ALLOWED/REQ'D SETBACKS Front: 1st flr 63' 15' or block average (65') 2nd flr 85' 20' Side (left): I st flr 12' 7' 2nd flr 20' Side(right): Ist flr 25' 7' 2nd flr 25' Rear: I st flr 105' 15' 2nd flr 105' 20' LOT COVERAGE: 16.3% (4,343 SF) 40% (10,630 SF) FAR: 7,797 SF/0.29 FAR 8,000 SF/ 0.30 FAR PARKING: 3 covered (10' x 20') 2 covered (20' x 20') + 1 uncovered' + 1 uncovered HEIGHT: -8.61' (building is 2 1/2 stories 30' whichever is less below curb level) DHENVELOPE: Meets requirement See code ' Special permit for attached garage. Staff Comments: See attached. The arborist report on the proposed tree removals is attached for reference. The City Arborist has been out to the property and finds the information provided to be sufficient. There are mitigation measures pertaining to the tree removals and protection of the remaining trees that will be included in the staff report for action as conditions of approval. Tree removal permits shall be required as stated in the Chapter 11.06 and as determined by the City Arborist. Scoping Session (May 27, 2003) and Response to Issues: On May 27, 2003, the applicant was before the Planning Commission for an environmental scoping session to identify any environmental concerns the Planning Commission may have with the proposed project (see attached minutes May 27, 2003). The potential environmental effects identified by staff at that time were: grading and construction impacts on a sloping lot, including soil erosion and loss of vegetation. At that meeting the Planning Commission identified the following additional items to be considered in the environmental document. Staff has briefly summarized the response, which is found in italics below each of the Commission's comments. Commission noted that the following concerns should be addressed in the environmental document: • Evaluate a detailed erosion plan, including monitoring, for the grading of the site for the building pad and for the driveway; The applicant has submitted an erosion control plan, date stamped December 8, 2003. The applicant has stated that work on the site will begin with the grading and construction of the retaining walls and driveway, then the removal of the tress, and finally the construction of the house. On the erosion control plan the Mitigated Negative Declaration, Design Review, and Special Permit 2838 Adeline Drive applicant notes that graded slopes will be covered with jute mesh where disturbed, and will be seeded if work is suspended for more than two weeks. The areas adjacent to the driveway retaining walls will be planted upon completion of backfill. The grading and excavation will only be done during dry weather. The driveway will be covered with rock upon completion of the retaining walls and the driveway fill. All NPDES measures will be taken during construction. Please see mitigation measures in attached mitigated negative declaration for additional erosion control measures. • The landscape plan should be evaluated for erosion control measures; Erosion control measures are provided on the plan date stamped December 8, 2003. As required by the City Arborist, the mitigation stated in the negative declaration requires that the site be terraced immediately after the removal of the trees and no later than 4 weeks after cutting the trees to prevent erosion and soil instability on the slope. The revised landscape plan also details the planting of vines, shrubs and groundcover that will also prevent erosion on the site. Rock rip -rap will be placed at all discharge points for on -site drainage. • Will the stumps of the removed eucalyptus trees be ground; if not how will they be treated; The applicant has noted in his December 29, 2003 response letter, that the stumps of the non-native tree species (Eucalyptus, Acacia) will be ground. The stumps of the native tree species will be left in the ground in hopes of re -growth. As suggested by the City Arborist, and as required as a mitigation measure, the stumps of the Eucalyptus trees must be ground within 24 hours of the tree removal. • The effect the removal of the eucalyptus trees will have on the views from surrounding properties; • the Sister's of Mercy have a trail on their property that they allow the public to use, how will the proposed development, and in particular the rear elevation of the house, rear property line fence and the landscaping, impact the views from the trail; The applicant has submitted digital images showing the proposed structure from three different vantage points. Each vantage point includes three photos,]) existing view; 2) view after construction with initial planting; and 3) view after approximately S years. The digital images include a plant list with the names, sizes and grow rate of the species proposed for planting, along with an analysis of each location. The digital imaging and analysis were prepared by Doug Johnson of Fat Box, Redwood City, CA. • What tree protection measures are needed for the trees that will remain on the site; and Tree protection measures are found in the arborist ,s reports from Maguire Tree Care, date stamped April 1, 2003, and are listed as mitigations #22 through #31 in the attached mitigated declaration. The protection measures include grinding stumps, terracing the site, covering the root zones of the remaining Oak trees with 4 " of mulch and a layer ofplywood, wrapping trunks of remaining trees with wooden planks, and limb pruning prior to construction. • What is the proposed design and engineering required for the driveway, will there be retaining walls and how high will they be, will the height of the walls be sufficient to prevent runoff and soil erosion onto the roots of the remaining trees on the site. The applicant states in his letter dated December 29, 2003, that the retaining walls will be constructed to support the driveway and will remove none of the larger trees which will contribute to slope stability. The driveway retaining walls will increase the slope stability based on their location working around the trees and the nature of the retaining walls being designed to support the hillside. The large Eucalyptus trees on the site will be removed after the driveway is in place both for cost measures and to provide the desired stability of the slope. The soils report states that temporary shoring will be used to stabilize the hillside 3 Mitigated Negative Declaration, Design Review, and Special Permit 2838 Adeline Drive during excavation. The soils report also classifies the soil type in this area as stable to moderately stable. According to the driveway section drawings, sheet ]A, dated stamped November 10, 2003, the height of the retaining walls will range from 2' to 13'. The soils report states that adequate drainage shall be provided for the retaining walls by a sub -drain system consisting of a four inch diameter perforated pipe (AES slotted) bedded in drain rock wrapped effectively with filter fabric to a height of two-thirds the height of the wall. Commission also asked that staff or the applicant address the following issues on the plans and in the processing of the application: • Story poles should be erected at the time the design of the house is finalized; Story poles should not be erected until after the design review study meeting. • Does the lower floor plan meet the 10% ventilation requirement; and This item will be reviewed during the Building Department plan check. Clarify on the plans exactly which trees will remain on the site. A revised landscape plan was submitted, date stamped November 10, 2003, which clearly indicates the trees proposed for removal which are designated by a circle with an X through it. Negative Declaration: The Planning Commission should review the proposed Negative Declaration and its mitigations and note if any responses need to be expanded upon. Also the Planning Commission should note whether the proposed mitigations address the issues raised. Catherine Barber Planner c. Michael Gaul, applicant/property owner/designer 4 611A CITY c., CITY OF BURLINGAME euRUNGAME PLANNING DEPARTMENT 501 PRIMROSE ROAD • BURLINGAME, CA 94010 TEL: (650) 558-7250 Site: 2838 ADELINE DRIVE Application for a mitigated negative declaration, design review and special permit for an attached garage for a new two-story single family dwelling at: PUBLIC HEARING 2838 ADELINE DRIVE, zoned R-1. (APN: 027-091- 080). NOTICE The City of Burlingame Planning Commission announces the following public hearing on Monday, February 9, 2004 at 7:00 P.M. in the City Hall Council Chambers located at 501 Primrose Road, Burlingame, California. Mailed: January 30, 2004 (Please refer to other side) CITY OF BURLINGAME A copy of the application and plans for th %at y be reviewed prior to the meeting at the Planning Depa ent %l Primrose Road, Burlingame, C ' ornia. If you chall ge the subject application(s) in cogs. u ma be limited to raising onl hoserissues you or someone else raised a he blic hearing, described i . the notice or in written correspond Legfloime d to the city at or prior to the public hearing,, Property tenants 558-725 Margare City Plai (Please refer to other side) their (650) Item # 13 Design Review Study City of Burlingame Scoping Session for Environmental Review For a New Single Family Dwelling on a Sloping Lot Address: 2838 Adeline Drive Meeting Date: 5/27/03 Request: Environmental review, design review and a special permit for an attached garage for a new two-story single family dwelling, zoned R-1. Applicant/Property Owner/Designer : Michael Gaul APN: 027-091-080 Lot Area: 26,576 SF (0.61 acres) General Plan: Low Density Residential Zoning: R-1 Adjacent Development: Residential/Religious Institution Current Use: Vacant lot Proposed Use: Single family dwelling Allowable Use: Single family dwelling Environmental Scoping: As a part of preparing the initial study for the environmental document for this project, staff is requesting that the Planning Commission comment on any potential environmental effects which you feel should be investigated. The potential environmental effects identified by staff at this time are: the grading, and construction impacts on a sloping lot, including soil erosion and loss of vegetation. The comments provided by the Commission will be incorporated into the initial study for the project. The standard list of items investigated in an initial study is attached for reference. Project Summary: The applicant, Michael Gaul, is proposing to construct a new two and one half story single family dwelling at 2838 Adeline Drive, zoned R-1. The subject property is currently a vacant lot with a slope of between 21 % and 22%. This site, along with the property directly across the street were both once part of the Sisters of Mercy property, which was annexed into the City in the 1970's. The two properties extended off of the main campus, and are surrounded by residential properties that are located within County of San Mateo jurisdiction. The California Environmental Quality Act exempts, under Article 19, Section 15303, Class 3, new, small facilities or structures including single-family residences not in conjunction with the building of two or more such units, and in urbanized areas, up to three single-family residences may be constructed or converted under this exemption. Section 15304, Class4, exempts minor alterations in the condition of the land, water, and/or vegetation which do not involve removal of healthy, mature, scenic trees except for forestry or agriculture purposes. Grading on land with a slope of less than 10 percent, and gardening, and landscaping that do not affect sensitive resources is also exempt from the environmental review process. Since the existing slope of the subject property is between 21.1% and 22.1 % and the project involves grading on land with a slope greater than 10% the project is subject to environmental review. Summary: The proposal is to construct anew two and one half story single family dwelling with an attached garage at 2838 Adeline Drive, zoned R-1. The proposed house would cover 16.3% (4,343 SF) of the 26,576 SF lot, where 40% (10,630 SF) is the maximum lot coverage allowed. The house would have a total floor area of 7,797 SF (0.29 FAR) where 8,000 SF (0.30 FAR) is the maximum allowed. There would be three covered parking spaces provided for this five bedroom house in the three attached garages. Scoping for Environmental Review 2838 Adeline Drive The applicant is requesting the following: • Environmental review; • Design review for a new single family dwelling; and • Special Permit for an attached garage. As part of this application the applicant is proposing to remove all of the Eucalyptus trees on the property, 15 of which are mature Blue Gum Eucalyptus trees, 4 of which are of a protected size (48" circumference). They have hired a Certified Arborist to analyze the development proposal. The arborist report dated March 26, 2003, provides reasons for the removal of the eucalyptus as well as provides protection measures for the existing Coast Live Oaks that would remain as part of this project and discusses a reforestation program. The applicant has provided a landscape plan for the site. The City Arborist reviewed this material and in his April 11, 2003 memo (attached) has stated that he is in agreement with the arborist's report provided by the applicant and agrees with the number and species proposed for replaced. PROPOSED ALLOWED/REQ'D SETBACKS Front: 1st flr 63' 15' or block average (65') 2nd flr 85' 20' Side (left): 1"flr 12' 7' 2nd flr 20' Side(right): I St flr 25' 7' 2nd frr 25' Rear: I st flr 105' 15' 2nd flr 105' 20' LOT COVERAGE: 16.3% (4,343 SF) 40% (10,630 SF) FAR: 7,797 SF/0.29 FAR 8,000 SF/ 0.30 FAR PARKING. 3 covered (10' x 20') 2 covered (20' x 20') + 1 uncovered' + 1 uncovered HEIGHT: -8.61' (building is 2 1/2 stories 30' whichever is less below curb level) DH ENVELOPE: Meets requirement See code ' Special permit for attached garage. Staff Comments: See attached. Planning Commission Action: The Planning Commission should review the proposed project and the areas of potentially significant environmental effects identified by staff. The Commission should add any additional effects Scoping for Environmental Review 2838 Adeline Drive of the project which you anticipate maybe potentially significant to the environment. The areas of investigation for environmental evaluation as defined by CEQA are listed on the attached sheet for your reference. Catherine Barber Planner c. Michael Gaul, applicant/property owner/designer �rE cirr c� CITY OF BURLINGAME , euRUH�aME PLANNING DEPARTMENT 501 PRIMROSE ROAD BURLINGAME, CA 94010 * °` o,, ,• ,. ' • TEL: (650) 558-7250 Site: 2838 Adeline Drive Environmental scoping for an application for design review and.special permit for an attached garage for a new two-story, single family dwelling on a lot with a PUBLIC HEARING slope greater than 10% at: 2838 Adeline Drive, NQTLCE zoned R-1. (APN: 627-091-080). The City of Burlingame Planning Commission announces the following public hearing on Tuesday, May27, 2003 at 7:00 P.M. in the City Hall Council Chambers located at 501 Primrose Road, Burlingame, California. i Mailed: May.16, 2003 (Please refer to other side) CITY OF BURLINGAME A copy of the application and ��ans i`oi tl is pToje''t ttiay be reviewed prior to the meeting at l'ie Planpiag. Dpartinent at. Ql Primrose Road, Burlingame, Calii fia , _V If you chat tithe'` b ect a licati g J PP 9n(s)1n court, you ma be limited to raising onl osc issues —you or someone else raised of "the �blic hearing, described i'lKapnkl�,1po 'the moticp pr--d written corre�pondencew leliver d to the city y- at or prior the pu$lic'f�ear l?g�� i : ? :� ; �� Ltfl ��. -, ram;. Property oers yho receive this notice, are responsiff`_' or 1 orming their. tenants Sabthi Finforinatio ple t e call ,(650) 558-7250.0 Margaret Mo City Planner PUBLEIIEAR,IUG NOTICE (Please refer to other side)