#2 this report revises and replaces report #1 Revised plans received March 15, 2012 Report completed March 26, 2012

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1 Community Development Department City of Saratoga Fruitvale Avenue Saratoga, California ARBORIST REPORT It is the responsibility of the owner, architect and contractor to be familiar with the information in this report and implement the required conditions. Application #: ARB Prepared by Kate Bear, City Arborist Site: Montalvo Lane Phone: (408) Owners: Ken and Debbie Follmar APN: Report History: #1 Plans received December 14, 2011 Arborist report received January 25, 2012 Report done February 6, 2012 #2 this report revises and replaces report #1 Revised plans received March 15, 2012 Report completed March 26, 2012 #3 this report revises and replaces report #2 Met with developer on site March 28, 2012 Report completed March 29, 2012 PROJECT SCOPE The applicant has submitted plans to the City to demolish the existing house and build a new two story house with a basement and attached basement garage. Five trees protected by City Code (#2, 4, 8, 9 and 13) are requested for removal to construct the project. They meet the criteria for removal and replacement as part of the project (see the Findings section below) and may be removed and replaced once all applicable permits have been obtained. Two trees not protected by City Code (#3 and an olive tree by the front entrance gate) require removal. These trees may be removed at any time without permits. CLEARANCE with conditions Based on a review of the plans, and as conditioned in the Requirements section of this report, this project complies with the requirements for the setback of new construction from existing trees under Section of the City Code. PLAN REVIEW Plans Reviewed: The submittal for planning review included architectural, civil, and landscape plans. Architectural plans were prepared by Bob Taylor Homes and dated December Architectural plan sheets reviewed for this report include Sheet A1, Cover Sheet; Sheet A2, Site Plan; Sheet A3, Ground Level Floor Plan; Sheet A4, Upper Level Floor Plan; Sheet A5, Basement Floor Plan; Sheets A7 and A8, Elevations; Sheet A9, Carport Elevation and Floor Plan, and Sheet A10, Sections. Page 1 of 8

2 Civil drawings were prepared by NNR Engineering and dated December 12, Sheets reviewed for this report include Sheet C1, Cover Sheet; Sheet C1, Boundary and Topographic Survey; Sheet C2, Grading and Drainage Plan; and Sheet C3, Cross Sections and Details. Landscape drawings were prepared by Kikuchi and Associates, and dated November 22, Landscape plans reviewed for this report include Sheet L1, Landscape Design Plan; Sheet L2, Landscape Screening Plan; and Sheet L3, Schematic Irrigation Plan. TREE INFORMATION An arborist report for the project was prepared by McClenahan Consulting, LLC and dated January 17, 2012 and received by the City on January 25, It was revised and corrected on February 1, 2012 and received by the City on February 2. The report inventoried 19 trees on site, provided appraised values for each tree, and provided recommendations to mitigate project impacts. An additional three trees were inventoried on February 2, 2012 by the City Arborist and added to the list, for a total of 22 trees. One tree inventoried by McClenahan Consulting (#3) is not protected by City Code and may be removed at any time without a permit. A second tree (#4) was assigned the wrong diameter and mistakenly considered too small to be protected by City Code in previous reports. McClenahan Consulting, LLC, will be referred to in the remainder of this report as the Project Arborist. Tree Inventory: Twenty one trees protected by City Code and one tree not protected by City Code were inventoried for the project. Inventoried trees include fifteen coast live oaks (#1, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 17, 18, 19 and 21), five deodar cedars (#2, 4, 9, 13 and 20), and one Monterey pine (#22). Tree #3 in the submitted arborist report is a deodar cedar which is not protected by City Code. It may be removed at any time without a permit. The trees on site were tagged with round numbered aluminum tags for ease of reference. Information about each tree is included in the submitted arborist report and on the attached Inventory Table, and their locations are shown on a map attached to the end of this report. Tree Removals: Five trees (#2, 4, 8, 9 and 13) protected by City Code are in conflict with the proposed project and have been requested for removal. Whenever a tree is requested for removal as part of a project, certain findings must be met. A list of criteria permitting the removal of trees is attached to the end of this report. See the Findings section below for a detailed discussion of trees #2, 4, 8, 9 and 13. Two trees not protected by City Code are also in conflict with the project. One was included in the submitted inventory (deodar cedar #3) and the second is an olive tree by the entrance to the property which may be impacted by the widening of the driveway. These two trees may be removed at any time without a permit. Tree Protection: The following information provides specifics about how best to protect individual trees during the project. Page 2 of 8

3 Oak tree #1: This tree will be impacted by construction of the new driveway. To best protect the tree, the existing driveway should be left until the end of the project, and removed right before installing the new driveway. If this is not feasible, the Project Arborist should be on site to supervise the removal of the existing driveway, protection of the tree during construction, and installation of the new driveway. The trench for the drain pipe to the energy dissipater pit should be dug by hand or using an Air Spade, leaving all roots measuring two inches or more in diameter intact. The Project Arborist should be on site to monitor this work. Oak tree #5: This tree is potentially impacted by installation of a curb next to the driveway. It can be protected with chain link fencing or straw wattle wrapped around its trunk. Oak trees #6 7: These oaks grow right next to each other and next to the driveway. They will potentially impacted by installation of a curb next to the driveway. No retaining wall or installation of drainage is proposed for the area where these trees grow, and they can be adequately protected with chain link fencing or straw wattle wrapped around the trunks. Oak trees #10 and 12: The area at the center of the seating area will be comprised of concrete and pavers. This is sufficiently far from trees #10 and 12 to adequately protect them. The area around the new citrus trees will be decomposed granite, a material that is pervious and therefore acceptable. Oak trees #15 and 16: Retaining walls will be constructed at about five feet from the trunk of tree #15 and about 8 feet from tree #16. Both walls will be constructed on piers which is acceptable. To best protect them, no work should occur within 5 feet of their trunks. The patios should be constructed entirely on top of grade, with no fill soil used within the five foot protection setback. Oak tree #17: This oak apparently has been surveyed in the wrong location on the plans, and is farther from the work than shown. Consequently, it is sufficiently far from grading work to create the driveway and basement and can be adequately protected with tree protection fencing. Oak tree #19: This oak will benefit by the removal of the slope that currently directs rain and irrigation water for the lawn towards its trunk. Installation of turf block for a fire truck turn around should be monitored by the Project Arborist to guide any necessary excavation or root cutting for the project. The revised plans show a water line to be installed on two sides of this oak, which will require cutting roots on both sides of the tree. It is about 14 feet from the tree on one side which is sufficiently far from the trunk. However, the other side of the tree has the water line only nine feet from the tree s trunk. This should be moved to a distance of at least 14 feet as well. Installation of the turn-around and water line should be monitored by the Project Arborist. Additional oak and pine not inventoried: A 10 inch oak and a 12 inch pine grow right next to the proposed sanitary sewer line for the new home. The line is shown right next to the trunk of the pine, and very close to the oak. Neither tree will survive excavation for this utility if work is done as proposed. The sewer line should be relocated so that it is at least 8 feet from the trunks of the trees. Security Deposit for the Projection of Trees: Per City Ordinance , a Tree Protection security deposit equal to 100% of the appraised value of trees impacted by the project is required. Owner shall obtain, and file with the Community Development Director, the required security deposit prior to the receipt of building permits. The security deposit may be in the form of a savings account, a certificate of deposit account or a bond. Page 3 of 8

4 The required security deposit for this project is $102,910 and is equal to the total appraised value of trees #1, 5 7, 10 12, and This deposit will be held until completion of the project and acceptance by the City. Appraisals: Appraised values were calculated using the Trunk Formula Method and according to the Guide for Plant Appraisal, 9 th Edition, published by the International Society of Arboriculture (ISA), This was used in conjunction with the Species Classification and Group Assignment, published by the Western Chapter of the ISA, FINDINGS Tree Removal trees #2, 4 and 13, and coast live oaks #8 and 9 are in conflict with the proposed project. Whenever a tree is requested for removal as part of a project, certain findings must be met. A list of criteria permitting the removal of trees is attached to the end of this report. A summary of criteria met is listed in the table below. The five trees meet the criteria for removal and may be removed and replaced as part of the project. No tree may be removed until all applicable permits have been obtained. Summary of tree removal criteria that are met Tree # Criteria met Criteria not met Not pertinent 2 deodar cedar 1, 2, 4, 6, 7, 9 3, 5, 8 4 deodar cedar 1, 4, 5, 6, 7, 9 3, oak 1, 4, 6, 7, 9 3, 5, deodar cedar 1, 4, 5, 7, 9 2, 3, 5, 8 13 deodar cedar 1, 4, 6, 7, 9 2, 3, 5, 8 Deodar Cedar #2: This tree is in fair health and grows on the hillside next to the existing driveway, which must be widened to meet Fire Department requirements. It is in conflict with the proposed grading and installation of a retaining wall, and so meets criterion #1. If it is left in place, it would likely cause damage to the new retaining wall, and so meets criterion #2. It does help with managing soil erosion in that it grows on a fairly steep hillside, and its removal will not meet criterion #3. There are many trees on site and the removal of this tree will not significantly impact shade, scenic beauty or privacy for the site, so it meets criterion #4. This tree is not planted too close to other trees for good forestry practices, so its removal does not meet criterion #5. There is not a feasible alternative to removing this tree, because the driveway location is constrained by Fire Department truck turn around requirements, so its removal does meet criterion #6. Removal of this tree does meet criterion #7, which is to replace trees when it is not possible to retain and preserve them. This tree does not present a safety or public health concern, so criterion #8 is not met. Removal of this tree will provide economic and other enjoyment to the property owners, when there is no feasible alternative, so criterion #9 is met. Deodar Cedar #4: This tree is in fair health and grows on the hillside next to the existing driveway, which must be widened to meet Fire Department requirements. It is in conflict with the proposed driveway, and so meets criterion #1. It cannot be left in place and the driveway constructed to meet Fire Department requirements, so criterion #2 is not pertinent. This tree does help with managing soil erosion in that it grows on a fairly steep hillside, so its removal will not meet criterion #3. There are many trees on site and the removal of this tree will not significantly impact shade, scenic beauty Page 4 of 8

5 or privacy for the site, so it meets criterion #4. This tree is relatively close to a young oak tree that is far enough from the driveway that it can be preserved, and removal of the cedar will provide more space for the oak, so criterion #5 is met. There is no feasible alternative to removing this tree, because the driveway width is constrained by Fire Department requirements, so its removal does meet criterion #6. Removal of this tree does meet criterion #7, which is to replace trees when it is not possible to retain and preserve them. This tree does not present a safety or public health concern, so criterion #8 is not met. Removal of this tree will provide economic and other enjoyment to the property owners, when there is no feasible alternative, so criterion #9 is met. Tree #8 : Tree #8 is an oak in fair condition that grows on a hill next to proposed water tanks required by the Fire Department. The tree is in conflict with the proposed grading for the hill, the water tanks, and the line to the tanks, and therefore meets criterion #1. The tree cannot be retained and have the project meet Fire Department requirements, so criterion #2 is not pertinent. Removal of this tree will have an impact on erosion, so criterion #3 is not met, but new plants and a new oak tree will be installed in the same approximate location on the hill to replace it. There are many trees on the property, and the removal of this tree will not have a significant impact on the property s aesthetic beauty, shade and privacy, so criterion #4 is met. This tree is not too close to other trees for good forestry practices, so criterion #5 is not met. The alternative to removing this tree is to relocate the water tanks and avoid grading the hill, which may not meet Fire Department requirements, so criterion #6 is met. Removal and replacement of tree #8 does meet criterion #7, which is to replace trees when it is not possible to preserve them. This tree does not present a safety concern, so criterion #8 is not met. Removal of this tree will provide economic and other enjoyment to the property owners, when there is no feasible alternative, so criterion #9 is met. Trees #9 and 13 s: Trees #9 and 13 are in fair condition and grow on the hill behind the existing garage that will be graded to allow more room for the proposed house and installation of water tanks required by the Fire Department. Tree #9 is in conflict with the grading necessary for the water tanks and water line, and tree #13 has a low suitability for retention and is not in good enough condition to warrant preserving it. Therefore, both trees meet criterion #1 in that they are in conflict with proposed structures. They do not threaten damage to any proposed aspect of the project, so criterion #2 is not met. Removal of these trees will have an impact on erosion, but new plants will be installed on the hill to replace them, so criterion #3 is not met. Removal of these trees will not have a significant impact on the property s aesthetic beauty, shade and privacy, so their removal does meet criterion #4. These trees are not too close to other trees for good forestry practices, so they do not meet criterion #5. The alternative to removing these trees is to redesign the house so that the hillside remains intact and to relocate the water storage tanks. Relocating the water tanks is not feasible, and although redesigning the house is an alternative, tree #13 has a low suitability for preservation, so criterion #6 is met in both cases. Removal and replacement of trees #9 and 13 does meet criterion #7, which is to replace trees when it is not possible or practical to retain and preserve them. Neither tree presents a safety concern, so criterion #8 is not met. Removal of these trees will provide economic and other enjoyment to the property owners, when there is no feasible alternative, so criterion #9 is met. Replacement Trees: The total appraised value of trees #2, 4, 8, 9 and 13 is $24,070. New trees equal to this appraised value will be required as part of the project. Replacement trees may be planted anywhere on the Page 5 of 8

6 property. Replacement values for new trees can be found at the bottom of the Tree Inventory Table attached to the end of this report. New Construction Based on a review of information provided, and as conditioned, the project complies with the requirements for the setback of new construction from existing trees under Section of the City Code. REQUIREMENTS 1. The arborist report prepared by John McClenahan for McClenahan Consulting, LLC shall be copied onto a plan sheet, titled Tree Preservation and included in the final set of plans. 2. This entire arborist report, including the Tree Inventory Table and the attached map shall be included in the final job copy set of plans as part of the Tree Preservation plan sheet. 3. John McClenahan of McClenahan Consulting, LLC shall be known as the Project Arborist for the project. 4. Tree Protection Security Deposit - $102,910 a. Owner shall obtain, and file with the Community Development Director, a Tree Protection security deposit for trees #1, 5 7, 10 12, and 15 22, prior to obtaining Building Division permits. b. The tree protection security deposit shall remain in place for the duration of construction of the project to ensure the protection of the trees. c. Once the project has been completed, inspected and approved by the City, the bond will be released. 5. Tree Protection Fencing: a. Shall be installed as shown on the attached map. b. Shall be established prior to the arrival of construction equipment or materials on site. c. Shall be comprised of six-foot high chain link fencing mounted on eight-foot tall, 2-inch diameter galvanized posts, driven 24 inches into the ground and spaced no more than 10 feet apart. d. Shall be posted with signs saying TREE PROTECTION FENCE - DO NOT REMOVE WITHOUT APPROVAL FROM CITY ARBORIST. e. Call City Arborist, Kate Bear at (408) for an inspection of tree protection fencing once it has been installed. This is required prior to obtaining building division permits. f. Tree protection fencing shall remain undisturbed throughout the construction until final inspection. If contractor feels that work must be done inside the fenced area, call City Arborist to arrange a field meeting. 6. Trees shall be numbered on all site plan sheets. 7. The sewer line shall be relocated to remain at least 8 feet from an 8 inch oak and a 12 inch pine growing at the lower end of the property. Page 6 of 8

7 8. Plans shall be modified so that there are no changes in grade, including addition of fill soil, soil cuts or excavation, trenching, or any other method of soil disturbance, within the distances listed below: a. 5 feet trees #5, 6, 7, 15 and 16 d. 14 feet tree #19 b. 8 feet trees #11, 18, 20 and 21 e. 15 feet trees #10, 12 and 22 c. 11 feet trees #1 and The materials for the seating area shall be pervious materials such as decomposed granite, gravel or pavers on sand in locations that are within 15 feet of trees #10 and 12. Trenching for irrigation and excavation to install pavers or a mow band shall remain at least 15 feet from these trees. 10. Plans shall show landscaping under oak trees as follows: a. Plants shall not be planted within the inner half of the area under the canopy. b. Only mulch is permitted under area within the inner half under the canopy. c. Only drought tolerant plants that are compatible with oaks are permitted under the outer half of the canopy. d. Water loving plants are not permitted under oaks. e. Lawns are not permitted under the canopy of oaks. 11. All construction activities shall be conducted outside tree protection fencing. These activities include, but are not necessarily limited to, the following: demolition, grading, trenching, equipment cleaning, stockpiling and dumping materials (including soil fill), and equipment/vehicle operation and parking. 12. Applicant is responsible for protecting trees per City Code Article on all construction work. Receipt of a Planning or Building permit does not relieve applicant of his responsibilities under this Code. 13. Project Arborist shall be on site to supervise the removal of the driveway and installation of the new driveway. If the driveway is removed at the start of the project, a layer of wood chips or other buffering material acceptable to the City Arborist shall be installed and maintained for the duration of the project. 14. No excavation is permitted under the canopy of any protected tree on site without prior approval from the City Arborist. Approval shall be obtained before any work takes place. Failure to do so may lead to a hold on the Tree Protection Security Deposit put in place by the property owner for a period of up to five years after the completion of construction. 15. No protected tree authorized for removal or encroachment pursuant to this project may be removed or encroached upon until the issuance of the applicable permit from the building division for the approved project. 16. Trees #2, 4, 8, 9 and 13 meet the criteria for removal and may be removed and replaced once Building Division permits have been obtained. 17. New trees equal to $24,070 shall be planted as part of the project. Replacement trees may be planted anywhere on the property as long as they do not encroach on retained trees, and may be of any species. Page 7 of 8

8 18. Any permitted pruning or root pruning of trees on site shall be performed under the supervision of an ISA-Certified Arborist (the Project Arborist) and according to International Society of Arboriculture standards. 19. The disposal of harmful products (such as chemicals, oil and gasoline) is prohibited under tree canopies or anywhere on site that allows drainage to areas under tree canopies. Herbicides shall not be applied under tree canopies. 20. At the end of the project, when the contractor wants to remove tree protection fencing and have the tree protection security deposit released by the City, call City Arborist for a final inspection. ATTACHMENTS: Tree Removal Criteria Tree Inventory Table Map showing locations of trees and protective fencing around trees TREE REMOVAL CRITERIA Criteria that permit the removal of a protected tree are listed below. This information is from Article of the City Code and is applied to any tree requested for removal as part of the project. If findings are made that meet the criteria listed below, the tree(s) may be approved for removal and replacement during construction. (1) The condition of the tree with respect to disease, imminent danger of falling, proximity to existing or proposed structures and interference with utility services; (2) The necessity to remove the tree because of physical damage or threatened damage to improvements or impervious surfaces on the property; (3) The topography of the land and the effect of the tree removal upon erosion, soil retention and the diversion or increased flow of surface waters, particularly on steep slopes; (4) The number, species, size and location of existing trees in the area and the effect the removal would have upon shade, privacy impact, scenic beauty, property values, erosion control, and the general welfare of residents in the area; (5) The age and number of healthy trees the property is able to support according to good forestry practices; (6) Whether or not there are any alternatives that would allow for retaining or not encroaching on the protected tree; (7) Whether the approval of the request would be contrary to or in conflict with the general purpose and intent of this Article; (8) Any other information relevant to the public health, safety, or general welfare and the purposes of this ordinance as set forth in section ; and (9) The necessity to remove the tree for economic or other enjoyment of the property when there is no other feasible alternative to the removal. Page 8 of 8

9 TREE INVENTORY TABLE TREE NO. TREE NAME Trunk Diameter (in,) - per Guide for Plant Appraisal Estimated Canopy Spread (ft.) Comments Overall Condition Suitability for Preservation (High/Moderate/Low) Intensity of Impacts (1 = Highest, 5 = Lowest) In Conflict with Proposed Design Not Shown on Plans On Adjacent Proprty Appraised Value* 12.2, 11, 1 Quercus agrifolia Fair High 2 $12,500 2 Cedrus deodara Fair Moderate 2 X $3,850 3 Cedrus deodara Not protected Fair Low Not protected 4 Cedrus deodara Fair Low 1 X $4,600 5 Quercus agrifolia Fair Moderate 2 $5,700 6 Quercus agrifolia Fair Moderate 2 $3,020 7 Quercus agrifolia Fair Moderate 2 $3,800 8 Quercus agrifolia Poor Low 2 X $6,300 9 Cedrus deodara Poor Low 2 X $6, , 10 Quercus agrifolia Fair High 2 $20, Quercus agrifolia Fair High 2 $ Quercus agrifolia Fair Moderate 3 $13, Cedrus deodara Fair Low 1 X $3,020 23, 14 Quercus agrifolia Fair Moderate 3 $16, Quercus agrifolia Fair Moderate 3 $2, Montalvo Lane March 29, 2012

10 TREE INVENTORY TABLE TREE NO. TREE NAME Trunk Diameter (in,) - per Guide for Plant Appraisal Estimated Canopy Spread (ft.) Comments Overall Condition Suitability for Preservation (High/Moderate/Low) Intensity of Impacts (1 = Highest, 5 = Lowest) In Conflict with Proposed Design Not Shown on Plans On Adjacent Proprty Appraised Value* 16 Quercus agrifolia Fair High 2 $4, Quercus agrifolia Fair High 2 $7, Quercus agrifolia Fair High 2 $4, Quercus agrifolia Poor High 2 $7, Cedrus deodara Fair Moderate 2 $3, , 21 Quercus agrifolia Good High 2 $5,800 Monterey pine 22 Pinus radiata Fair Moderate 2 $8,100 Total appraised value $144,280 *Appraised values are rounded to the nearest $10 if they are under $5,000, and to the nearest $100 if they are over $5,000. Should any tree listed above be removed owner will be required to replace that tree with trees equal to its appraised value. Replacement Tree Values 15 gallon = $ inch box = $ inch box = $1, inch box = $5, inch box = 7, inch box = $15, Montalvo Lane March 29, 2012

11 20770 Montalvo Lane NP Trees #21 & 22 are next to shed to be deconstructed Legend Tree Protective Fencing Tree Canopy Tree Number Tree Not Protected by City Code 4 NP